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Dong L, Jiao F, Liu W, Wang D, Chen Wang, Qin W. Selective preparation of lithium carbonate from overhaul slag by high temperature sulfuric acid roasting - Water leaching. J Environ Manage 2024; 359:120963. [PMID: 38728980 DOI: 10.1016/j.jenvman.2024.120963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/30/2024] [Accepted: 04/19/2024] [Indexed: 05/12/2024]
Abstract
An efficient recycling process is developed to recover valuable materials from overhaul slag and reduce its harm to the ecological environment. The high temperature sulfuric acid roasting - water leaching technology is innovatively proposed to prepare Li2CO3 from overhaul slag. Under roasting conditions, fluorine volatilizes into the flue gas with HF, lithium is transformed into NaLi(SO4), aluminum is firstly transformed into NaAl(SO4)2, and then decomposed into Al2O3, so as to selective extraction of lithium. Under the optimal roasting - leaching conditions, the leaching rate of lithium and aluminum are 95.6% and 0.9%, respectively. Then the processes of impurity removal, and settling lithium are carried out. The Li2CO3 with recovery rate of 72.6% and purity of 98.6% could be obtained under the best settling lithium conditions. Compared with the traditional process, this work has short flow, high controllability, remarkable technical, economic, and environmental benefits. This comprehensive recycling technology is suitable for overhaul slag, and has great practical application potential for the disposal of other hazardous wastes in electrolytic aluminum industry.
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Affiliation(s)
- Liangmin Dong
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China.
| | - Wei Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China.
| | - Dakun Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Chen Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
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Zhang T, Han J, Dong L, Liu D, Jiao F, Qin W, Liu W. Innovative methodology for comprehensive utilization of arsenic-bearing neutralization sludge. J Environ Manage 2024; 353:120148. [PMID: 38306856 DOI: 10.1016/j.jenvman.2024.120148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/22/2023] [Accepted: 01/07/2024] [Indexed: 02/04/2024]
Abstract
Arsenic-bearing neutralization (ABN) sludge is a classical hazardous waste commonly found in nonferrous metallurgy. However, the current storage of these hazardous wastes not only has to pay costly hazardous waste taxes but also poses significant risks to both the environment and human health. To address these issues and achieve the comprehensive utilization and minimization of ABN sludge, this study proposes a new combined process. The process involves selective reduction roasting, leaching, and carbonation, through which, the arsenate and gypsum in the ABN sludge were recovered in the form of As(s), high-purity CaCO3, and H2S. The selective reduction behaviors of arsenate and gypsum were investigated through thermodynamic analysis and roasting experiments. The results indicated that the 95.35 % arsenate and 96.55 % gypsum in the sludge were selectively reduced to As4(g) and CaS at 950 °C by carbothermic reduction. The As4(g) was condensed to As(s) and enriched in the dust (As, 96.78 wt %). In the leaching process, H2S gas was adopted to promote the leaching of CaS, and resulted in 97.41 % of CaS in the roasted product was selectively leached in the form of Ca(HS)2, leading to a 74.11 % reduction in the weight of the ABN sludge. Then, the Ca(HS)2 was subjected to capture CO2 for the separation of Ca2+ and S2-. The result depicted that 99.69 % of Ca2+ and 99.12 % of S2- were separated as high-purity (99.12 wt %) CaCO3 and H2S (24.89 vol %) by controlling the terminal carbonation pH to below 6.55. The generated H2S can be economically converted to sulfur by the Clause process. The whole process realized the comprehensive resource recovery and the minimization of the sludge, which provides an alternative solution for the clean treatment of hazardous ABN waste.
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Affiliation(s)
- Tianfu Zhang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Junwei Han
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Liuyang Dong
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, China
| | - Dianwen Liu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Wei Liu
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China.
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Zhang L, Jiao F, Qin W, Wei Q. New Insight into Elastic Mechanical Properties and Anisotropies of Crystal Defect α-Quartz from DFT Calculation. ACS Omega 2023; 8:43644-43650. [PMID: 38027338 PMCID: PMC10666211 DOI: 10.1021/acsomega.3c05173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
To reveal the cleavage mechanism of α-quartz in the grinding process of nonferrous metal ores, mechanical and charge properties of α-quartz crystals are investigated using the density functional theory. Based on the elastic constant matrix, the bulk and shear moduli were calculated before and after the α-quartz with oxygen atom defects. The results show that the ratios of bulk and shear moduli (B/G) were 0.87 and 0.95, respectively, which indicated that at the same stress level, it was easier to fracture without O-vacancy defects than with O-vacancy defects. The mapping surfaces indicated that the O-vacancy defect increased the bulk-, shear-, and Young's moduli, and Poisson ratio while decreasing the hardness. The anisotropy index (AL and AU) was calculated which illustrated that the O-vacancy can result in an increased anisotropy; meanwhile, the bulk anisotropy index (AB) increased strongly about two times. The anisotropy analysis shows the dominance crystal cleavage of the (011) plane in the shear stress and the dominance crystal cleavage of the (111) plane in the normal stress. The electron localization function α-quartz show that the O-vacancy defect can decrease the Si-Si length from 3.703 to 2.442 Å, which indicated that the O-vacancy formed the new covalent bonds between silicon atoms. Our work provided a systematic approach containing the mechanical, anisotropic, and electronic properties of mineral crystals to explain the cleavage behavior of crystals.
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Affiliation(s)
- Lin Zhang
- School of Minerals Processing
and Bioengineering, Central South University, Changsha 410083, China
| | - Fen Jiao
- School of Minerals Processing
and Bioengineering, Central South University, Changsha 410083, China
| | - Wenqing Qin
- School of Minerals Processing
and Bioengineering, Central South University, Changsha 410083, China
| | - Qian Wei
- School of Minerals Processing
and Bioengineering, Central South University, Changsha 410083, China
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Zhang T, Han J, Liu W, Jiao F, Jia W, Qin W. Recovery of zinc and extraction of calcium and sulfur from zinc-rich gypsum residue by selective reduction roasting combined with hydrolysis. J Environ Manage 2023; 331:117256. [PMID: 36642046 DOI: 10.1016/j.jenvman.2023.117256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/28/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
A novel process that includes selective reduction roasting followed by hydrolysis was proposed in this work to recover zinc, and efficiently extract calcium and sulfur from hazardous zinc-rich gypsum residue (ZGR) waste for high-purity of CaCO3 and sulfur production. The selective reduction behaviors of ZGR during the reduction roasting were investigated in detail based on thermodynamic analysis and roasting experiments. The effect of roasting temperature, carbon dosage and time on the selective reduction of ZGR was comprehensively investigated, and the results indicated that ZnO and CaSO4 in the ZGR can be selectively reduced to Zn(g) and CaS, respectively. The volatile Zn(g) was oxidized to ZnO and enriched in the dust, which can be used as a secondary zinc resource. Moreover, the hydrolysis behaviors and leaching kinetic of CaS during hydrolysis were studied intensively. Results depicted that in the H2S-H2O system, the CaS in the roasted product can be selectively and efficiently dissolved into the leachate. Furthermore, the kinetic analysis revealed that the hydrolysis of CaS conformed to the internal diffusion reaction control model in the shrinking core model and the apparent activation energy Ea = -12.02 kJ/mol. The obtained hydrolysate with low impurities could be used to capture CO2 for the production of high-purity sulfur and CaCO3. Iron and other impurities in the roasted product were concentrated into the leaching slag in the form of metallic iron and akermanite. The whole process realized the recovery of zinc, and the selective and effective extraction of calcium and sulfur, which could provide an alternative process for the large-scale treatment of these hazardous wastes.
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Affiliation(s)
- Tianfu Zhang
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Junwei Han
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Wei Liu
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China.
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Wenhao Jia
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
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Li C, Liu W, Jiao F, Yang C, Li G, Liu S, Qin W. Separation and recovery of zinc, lead and iron from electric arc furnace dust by low temperature smelting. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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6
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Cui Y, Jiao F, Qin W, Wang C, Li X. Flotation separation of sphalerite from galena using eco-friendly and efficient depressant pullulan. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Qin W, Hu J, Zhu H, Jiao F, Pan Z, Jia W, Han J, Chen C. Selective inhibition mechanism of PBTCA on flotation separation of magnesite from calcite. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127597] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Liu S, Liu W, Jiao F, Qin W, Yang C. Production and resource utilization of flue gas desulfurized gypsum in China - A review. Environ Pollut 2021; 288:117799. [PMID: 34329050 DOI: 10.1016/j.envpol.2021.117799] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/02/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the production in China and the latest beneficial utilizations of FGD gypsum. China is a large coal-consuming country and has always had serious SO2 emissions. Therefore, the Chinese government has implemented a large number of desulfurization measures since 2006. With continually increasing energy consumption and increasingly stringent environmental requirements, the production of FGD gypsum has exceeded 108 tons. The basic properties and the current beneficial applications of FGD gypsum are summarized here. The practical application of FGD gypsum in four fields-building materials, agriculture, material synthesis, and soil-and its impact on the environment, are analyzed. Finally, a new direction is proposed for the future utilization of FGD gypsum.
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Affiliation(s)
- Sen Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Wei Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China
| | - Congren Yang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha, 410083, China.
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9
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Wei Q, Feng L, Dong L, Jiao F, Qin W. Selective co-adsorption mechanism of a new mixed collector on the flotation separation of lepidolite from quartz. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125973] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Sui X, He X, Song Z, Gao Y, Zhao L, Jiao F, Kong G, Li Y, Han S, Wang B. The gene NtMYC2a acts as a 'master switch' in the regulation of JA-induced nicotine accumulation in tobacco. Plant Biol (Stuttg) 2021; 23:317-326. [PMID: 33236500 DOI: 10.1111/plb.13223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
The biosynthesis and transport of nicotine has been shown to be coordinately upregulated by jasmonate (JA). MYC2, a member of basic helix-loop-helix (bHLH) transcription factor family, is well-documented as the core player in the JA signalling pathway to regulate diverse plant development processes. Four MYC2 genes were found in the tobacco genome, NtMYC2a/2b and 1a/1b. In this study, we tested whether one of them, NtMYC2a, acts as a 'master switch' in the regulation of nicotine biosynthesis and transport in tobacco. We generated NtMYC2a knockout tobacco plants using the CRISPR-Cas9 technique and analysed the effect of NtMYC2a knockout on expression of the nicotine biosynthesis genes (NtAO, NtQS, NtPMT1a, NtQPT2, NtODC2, NtMPO1, NtA622 and NtBBLa) and transport genes (NtMATE2 and NtJAT1), as well as leaf accumulation of nicotine in the NtMYC2a knockout plants. We found that all the nicotine biosynthesis and transport genes tested in this study were significantly downregulated (>50% reduction compared with wild-type control) in the NtMYC2a knockout plants. Moreover, the leaf nicotine content in knockout plants was dramatically reduced by ca 80% compared with the wild-type control. These results clearly show that NtMYC2a acts as a 'master switch' to coordinate JA-induced nicotine accumulation in tobacco and suggests that NtMYC2a might play an important role in tobacco nicotine-mediated defence against herbivory.
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Affiliation(s)
- X Sui
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - X He
- Technology Center, Baoshan Oriental Tobacco Company, Baoshan, China
| | - Z Song
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Y Gao
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - L Zhao
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - F Jiao
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - G Kong
- Chemical Analysis Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Y Li
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - S Han
- College of Life Sciences, Beijing Normal University, Beijing, China
| | - B Wang
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
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Zhang T, Liu W, Han J, Wu G, Jiao F, Qin W. Selective separation of calcium from zinc-rich neutralization sludge by sulfidation roasting and HCl leaching. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Wu J, Ma W, Wang X, Jiao F, Qin W. The effect of galvanic interaction between chalcopyrite and pyrite on the surface chemistry and collector adsorption: Flotation and DFT study. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125377] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Zhong X, Liu W, Han J, Jiao F, Zhu H, Qin W. Pneumatic separation for crushed spent lithium-ion batteries. Waste Manag 2020; 118:331-340. [PMID: 32920496 DOI: 10.1016/j.wasman.2020.08.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 08/04/2020] [Accepted: 08/29/2020] [Indexed: 06/11/2023]
Abstract
Pneumatic separation was used to separate the valuable current collectors and harmful separators in spent lithium-ion batteries (LIBs) to avoid the plastic pollution caused by the separators in this study. Theoretical calculations for suspension velocities of the current collectors and separators indicate that they could be separated under special conditions. Furthermore, a special Z-shaped pneumatic separator was used to separate the current collectors and separators for the first time. Experiments for manually cut samples indicate that the efficiency of pneumatic separation is approximately 100% with the sizes and airflow velocities in the range of 3-4 cm and 6.96-7.8 m/s, respectively. Furthermore, industrial experiments of pneumatic separation indicate that the recoveries of the current collectors and separators are approximately 99.23% and 98.64%, respectively. Computer simulations of the separation process indicate that the turbulence and the changes in high-speed zones in the pneumatic separator benefit the separation of current collectors and separators. In conclusion, pneumatic separation is a promising technology to separate crushed current collectors and separators.
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Affiliation(s)
- Xuehu Zhong
- Peace Building, No. 101, School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Wei Liu
- Peace Building, No. 101, School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Junwei Han
- Peace Building, No. 101, School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China.
| | - Fen Jiao
- Peace Building, No. 101, School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Hailing Zhu
- Peace Building, No. 101, School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Wenqing Qin
- Peace Building, No. 101, School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, China
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Wang X, Jiao F, Qin W, Yang C, Cui Y, Wang Y, Zhang Z, Song H. Sulfonated brown coal: A novel depressant for the selective flotation of scheelite from calcite. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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16
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Dong L, Wei Q, Qin W, Jiao F. Selective adsorption of sodium polyacrylate on calcite surface: Implications for flotation separation of apatite from calcite. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116415] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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17
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Xu L, Jiao F, Jia W, Pan Z, Hu C, Qin W. Selective flotation separation of spodumene from feldspar using mixed anionic/nonionic collector. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124605] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Li CC, Zhan JL, Chen ZZ, Jiao F, Chen YF, Chen YY, Nie JX, Kang XN, Li SF, Wang Q, Zhang GY, Shen B. Operating behavior of micro-LEDs on a GaN substrate at ultrahigh injection current densities. Opt Express 2019; 27:A1146-A1155. [PMID: 31510496 DOI: 10.1364/oe.27.0a1146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 07/03/2019] [Indexed: 06/10/2023]
Abstract
Near-ultraviolet micro-LEDs with different diameters were fabricated on GaN substrates. The electroluminescence and the light output power-current density and current density-voltage relationships were measured. A saturated current density of 358 kA/cm2 was achieved with a 20 µm LED. The ideality factor curves showed steps and peaks when the injection current density was increased from 20 to 150 kA/cm2 and an abnormal efficiency increase. The transport and recombination processes of micro-LEDs at high injection current densities were simulated, and the many-body effect and phase space filling in the integrated quantum drift-diffusion model were considered. Serious current crowding was observed above 100 kA/cm2, even for the 20 µm LED.
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Zhong X, Liu W, Han J, Jiao F, Qin W, Liu T, Zhao C. Pyrolysis and physical separation for the recovery of spent LiFePO 4 batteries. Waste Manag 2019; 89:83-93. [PMID: 31079762 DOI: 10.1016/j.wasman.2019.03.068] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 06/09/2023]
Abstract
In this study, a novel process consisting of pyrolysis and physical separation was proposed to comprehensively recycle spent lithium ion batteries (LIBs). The discharge and pyrolysis behaviors of spent LIBs, the recovery of electrolyte from the spent LIBs by low-temperature volatilization, and the recovery of valuable materials from the pyrolytic residues through physical separation were studied in detail. The results indicated that approximately 99.91% of the organic electrolytes was recycled, and the lithium salt (LiPF6) in the batteries was disposed by pyrolysis process. The active materials could be effectively separated from current collectors after the pyrolysis under N2 at 550 °C for 2 h. The pyrolytic gas was mainly composed of light alkenes, and the pyrolytic tar was mainly composed of aromatic long chain alkenes and light alcohols. Pyrolytic residues were recycled by color sorting, high-pressure water cleaning and flotation processes, and about 99.34% of Al, 96.25% of Cu, and 49.67% of cathode active materials were recovered from the spent LIBs. Finally, electrochemical tests indicate that the cathode active materials obtained by the process can be used to produce new batteries.
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Affiliation(s)
- Xuehu Zhong
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Wei Liu
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Junwei Han
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China.
| | - Fen Jiao
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Wenqing Qin
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China.
| | - Tong Liu
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China
| | - Chunxiao Zhao
- School of Mineral Processing & Bioengineering, Central South University, Changsha 410083, China
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20
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Dong L, Jiao F, Qin W, Zhu H, Jia W. Activation effect of lead ions on scheelite flotation: Adsorption mechanism, AFM imaging and adsorption model. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.051] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Affiliation(s)
- Tengfei Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha, China
| | - Yansheng Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, China
| | - Bo Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, China
| | - Kexin Chang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, China
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, China
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22
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Abstract
Sulfidation is a widely used technology to improve the floatability of oxidized metal minerals or to stabilize the heavy metals in various wastes. The sulfidation mechanism of ZnO with pyrite was detailedly studied by thermodynamic calculation and roasting experiments. The sulfidation behaviors, phase transformations, microscopic morphology and surface properties were investigated by TG-DSC, ICP, XRD, SEM-EDS, and XPS analysis. The results indicate that the nature of the sulfidation is the reaction of ZnO with the gaseous sulfur generated by the decomposition of pyrite. Pyrite instead of sulfur as the sulfidizing agent can not only relieve the volatilization loss of sulfur but also enhance the formation of liquid phase and thus facilitate the growth of ZnS particles. The sulfidation reaction belongs to surface chemical reaction and relates to the migration of oxygen from the inside of ZnO to its surfaces. The presence of carbon not only eliminates the release of SO2, but also decreases the decomposition temperature of pyrite and promotes the sulfidation of ZnO. The addition of Na2CO3 promotes the sulfidation of ZnO at lower temperatures (below 850 °C) and enhances the growth of ZnS particles but has a negative effect on the sulfidation at higher temperatures.
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Affiliation(s)
- Wei Liu
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Lin Zhu
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Junwei Han
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China.
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, 410083, Changsha, Hunan, China
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23
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Wen L, Mao A, Jiao F, Zhang D, Xie J, He K. Detection of porcine circovirus-like virus P1 in Hebei, China. Transbound Emerg Dis 2018; 65:1133-1136. [PMID: 29761653 DOI: 10.1111/tbed.12896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Indexed: 11/29/2022]
Abstract
Porcine circovirus-like virus P1 is a novel unclassified circovirus that was first detected in China and may be associated with post-weaning multisystemic wasting syndrome (PMWS) and congenital tremor. In this study, we detected P1 infection in pigs in Hebei Province, China, in 2017. One hundred and forty of 500 (28.0%) serum samples from 25 pig farms with different PMWS status in seven cities were P1 positive on PCR. Twelve P1 strains were sequenced, and the complete genomes of 11 P1 strains were 648 nucleotides (nt) in length, whereas that of strain ZJK02 was 647 nt, with a G deletion at position of 183 in its genome. The complete genomic and capsid protein sequences of the 12 P1 strains analysed in this study shared 98.8%-100.0% and 86.5%-100.0% identity, respectively. A phylogenetic analysis based on the complete genomic and capsid sequences of 26 P1 strains showed that the 12 P1 sequences from Hebei Province clustered on two small branches. Further studies of the evolution and pathogenesis of P1 are required.
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Affiliation(s)
- L Wen
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences·Key Laboratory of Animal Diseases, Diagnostics, and Immunology, Ministry of Agriculture·Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou, China
| | - A Mao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences·Key Laboratory of Animal Diseases, Diagnostics, and Immunology, Ministry of Agriculture·Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou, China
| | - F Jiao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences·Key Laboratory of Animal Diseases, Diagnostics, and Immunology, Ministry of Agriculture·Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou, China
| | - D Zhang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences·Key Laboratory of Animal Diseases, Diagnostics, and Immunology, Ministry of Agriculture·Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou, China
| | - J Xie
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences·Key Laboratory of Animal Diseases, Diagnostics, and Immunology, Ministry of Agriculture·Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou, China
| | - K He
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences·Key Laboratory of Animal Diseases, Diagnostics, and Immunology, Ministry of Agriculture·Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infections Diseases and Zoonoses, Yangzhou, China
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24
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Affiliation(s)
- Liuyang Dong
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China
| | - Hailing Zhu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China
| | - Wenhao Jia
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China
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25
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Affiliation(s)
- Daowei Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha Hunan, China
| | - Fen Jiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha Hunan, China
| | - Wenqing Qin
- School of Minerals Processing and Bioengineering, Central South University, Changsha Hunan, China
| | - Xingjie Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha Hunan, China
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26
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Wen L, Mao A, Jiao F, Zhang D, Xie J, He K. Evidence of porcine circovirus-like virus P1 in piglets with an unusual congenital tremor. Transbound Emerg Dis 2017; 65:e501-e504. [DOI: 10.1111/tbed.12772] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Indexed: 01/07/2023]
Affiliation(s)
- L. Wen
- Jiangsu Academy of Agricultural Sciences Key Laboratory of Animal Diseases, Diagnostics, and Immunology; Institute of Veterinary Medicine; Ministry of Agriculture National Center for Engineering Research of Veterinary Bio-products; Nanjing China
| | - A. Mao
- Jiangsu Academy of Agricultural Sciences Key Laboratory of Animal Diseases, Diagnostics, and Immunology; Institute of Veterinary Medicine; Ministry of Agriculture National Center for Engineering Research of Veterinary Bio-products; Nanjing China
| | - F. Jiao
- Jiangsu Academy of Agricultural Sciences Key Laboratory of Animal Diseases, Diagnostics, and Immunology; Institute of Veterinary Medicine; Ministry of Agriculture National Center for Engineering Research of Veterinary Bio-products; Nanjing China
| | - D. Zhang
- Jiangsu Academy of Agricultural Sciences Key Laboratory of Animal Diseases, Diagnostics, and Immunology; Institute of Veterinary Medicine; Ministry of Agriculture National Center for Engineering Research of Veterinary Bio-products; Nanjing China
| | - J. Xie
- Jiangsu Academy of Agricultural Sciences Key Laboratory of Animal Diseases, Diagnostics, and Immunology; Institute of Veterinary Medicine; Ministry of Agriculture National Center for Engineering Research of Veterinary Bio-products; Nanjing China
| | - K. He
- Jiangsu Academy of Agricultural Sciences Key Laboratory of Animal Diseases, Diagnostics, and Immunology; Institute of Veterinary Medicine; Ministry of Agriculture National Center for Engineering Research of Veterinary Bio-products; Nanjing China
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27
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Han T, Hu H, Zhuo M, Wang L, Cui JJ, Jiao F, Wang LW. Long Non-Coding RNA: An Emerging Paradigm of Pancreatic Cancer. Curr Mol Med 2017; 16:702-709. [PMID: 27686798 DOI: 10.2174/1566524016666160927095812] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 11/22/2022]
Abstract
Pancreatic cancer remains a worldwide issue and burden that is hard to resolve given its low resection rate and chemo-resistance. Early diagnosis and early treatment are critical for conquering pancreatic cancer. Therefore, new biomarkers for diagnosis and prognosis are urgently needed. Previously, researchers mainly focused on protein-coding genetic and epigenetic changes in many types of cancers, and regarded the noncoding part as waste. Recently, however, long non-coding RNA (lncRNA) has emerged as a major participant in carcinogenesis, as it regulates cell proliferation, migration, invasion, metastasis, chemo-resistance, etc. The underlying mechanisms are summarized as signaling, decoy, guide and scaffold, yet the specific regulation networks remain to be uncovered. Several studies have revealed that some lncRNAs are dysregulated in pancreatic cancer, participating in biological functions. In this review, we will briefly outline the functional lncRNAs in pancreatic cancer, decipher possible mechanisms of lncRNAs, and further explore their significance in pancreatic cancer.
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Affiliation(s)
| | | | | | | | | | - F Jiao
- Department of Medical Oncology and Pancreatic Cancer Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Pancreatic Diseases, 650 New Songjiang Road, Shanghai 201620, China.
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28
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Jiao F, Wong CKH, Tang SCW, Fung CSC, Tan KCB, McGhee S, Gangwani R, Lam CLK. Annual direct medical costs associated with diabetes-related complications in the event year and in subsequent years in Hong Kong. Diabet Med 2017. [PMID: 28636749 DOI: 10.1111/dme.13416] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
AIM To develop models to estimate the direct medical costs associated with diabetes-related complications in the event year and in subsequent years. METHODS The public direct medical costs associated with 13 diabetes-related complications were estimated among a cohort of 128 353 people with diabetes over 5 years. Private direct medical costs were estimated from a cross-sectional survey among 1825 people with diabetes. We used panel data regression with fixed effects to investigate the impact of each complication on direct medical costs in the event year and subsequent years, adjusting for age and co-existing complications. RESULTS The expected annual public direct medical cost for the baseline case was US$1,521 (95% CI 1,518 to 1,525) or a 65-year-old person with diabetes without complications. A new lower limb ulcer was associated with the biggest increase, with a multiplier of 9.38 (95% CI 8.49 to 10.37). New end-stage renal disease and stroke increased the annual medical cost by 5.23 (95% CI 4.70 to 5.82) and 5.94 (95% CI 5.79 to 6.10) times, respectively. History of acute myocardial infarction, congestive heart failure, stroke, end-stage renal disease and lower limb ulcer increased the cost by 2-3 times. The expected annual private direct medical cost of the baseline case was US$187 (95% CI 135 to 258) for a 65-year-old man without complications. Heart disease, stroke, sight-threatening diabetic retinopathy and end-stage renal disease increased the private medical costs by 1.5 to 2.5 times. CONCLUSIONS Wide variations in direct medical cost in event year and subsequent years across different major complications were observed. Input of these data would be essential for economic evaluations of diabetes management programmes.
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Affiliation(s)
- F Jiao
- Department of Family Medicine and Primary Care, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - C K H Wong
- Department of Family Medicine and Primary Care, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - S C W Tang
- Department of Medicine, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - C S C Fung
- Department of Family Medicine and Primary Care, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - K C B Tan
- Department of Medicine, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - S McGhee
- School of Public Health, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - R Gangwani
- Department of Ophthalmology, University of Hong Kong, Ap Lei Chau, Hong Kong
| | - C L K Lam
- Department of Family Medicine and Primary Care, University of Hong Kong, Ap Lei Chau, Hong Kong
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29
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Yuan ZY, Jiao F, Shi XR, Sardans J, Maestre FT, Delgado-Baquerizo M, Reich PB, Peñuelas J. Experimental and observational studies find contrasting responses of soil nutrients to climate change. eLife 2017; 6. [PMID: 28570219 PMCID: PMC5453695 DOI: 10.7554/elife.23255] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 04/29/2017] [Indexed: 11/16/2022] Open
Abstract
Manipulative experiments and observations along environmental gradients, the two most common approaches to evaluate the impacts of climate change on nutrient cycling, are generally assumed to produce similar results, but this assumption has rarely been tested. We did so by conducting a meta-analysis and found that soil nutrients responded differentially to drivers of climate change depending on the approach considered. Soil carbon, nitrogen, and phosphorus concentrations generally decreased with water addition in manipulative experiments but increased with annual precipitation along environmental gradients. Different patterns were also observed between warming experiments and temperature gradients. Our findings provide evidence of inconsistent results and suggest that manipulative experiments may be better predictors of the causal impacts of short-term (months to years) climate change on soil nutrients but environmental gradients may provide better information for long-term correlations (centuries to millennia) between these nutrients and climatic features. Ecosystem models should consequently incorporate both experimental and observational data to properly assess the impacts of climate change on nutrient cycling. DOI:http://dx.doi.org/10.7554/eLife.23255.001
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Affiliation(s)
- Z Y Yuan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, China.,Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resource, Yangling, China
| | - F Jiao
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, China.,Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resource, Yangling, China
| | - X R Shi
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, China.,Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resource, Yangling, China
| | - Jordi Sardans
- Global Ecology Unit CREAF-CSIC-UAB, Consejo Superior de Investigaciones Científicas (CSIC), Bellaterra, Spain.,CREAF, Cerdanyola del Vallès, Spain
| | - Fernando T Maestre
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Manuel Delgado-Baquerizo
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Spain.,Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado
| | - Peter B Reich
- Hawkesbury Institute for the Environment, University of Western Sydney, Penrith, Australia.,Department of Forest Resources, University of Minnesota, Minnesota, United States
| | - Josep Peñuelas
- Global Ecology Unit CREAF-CSIC-UAB, Consejo Superior de Investigaciones Científicas (CSIC), Bellaterra, Spain.,CREAF, Cerdanyola del Vallès, Spain
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30
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Han J, Liu W, Xue K, Qin W, Jiao F, Zhu L. Influence of NH 4 HF 2 activation on leaching of low-grade complex copper ore in NH 3 -NH 4 Cl solution. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Jiao F, Fung C, Wan Y, McGhee S, Wong C, Dai D, Kwok R, Lam C. Effectiveness of the multidisciplinary Risk Assessment and Management Program for Patients with Diabetes Mellitus (RAMP-DM) for diabetic microvascular complications: A population-based cohort study. Diabetes & Metabolism 2016; 42:424-432. [DOI: 10.1016/j.diabet.2016.07.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/30/2016] [Accepted: 07/14/2016] [Indexed: 11/28/2022]
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32
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Affiliation(s)
- F. Jiao
- School of Mechanical and Power EngineeringHenan Polytechnic University, 2001, New Century Road, Jiaozuo, Henan, China
| | - Y. Niu
- School of Mechanical and Power EngineeringHenan Polytechnic University, 2001, New Century Road, Jiaozuo, Henan, China
| | - X. Liu
- School of Mechanical and Power EngineeringHenan Polytechnic University, 2001, New Century Road, Jiaozuo, Henan, China
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33
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Wu SL, Yang XB, Liu LQ, Jiang T, Wu H, Su C, Qian YH, Jiao F. Agrobacterium-mediated transient MaFT expression in mulberry (Morus alba L.) leaves. Biosci Biotechnol Biochem 2015; 79:1919. [PMID: 26312649 DOI: 10.1080/09168451.2015.1084734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Chu M, Wu XY, Guo X, Pei J, Jiao F, Fang HT, Liang CN, Ding XZ, Bao PJ, Yan P. Association between single-nucleotide polymorphisms of fatty acid synthase gene and meat quality traits in Datong Yak (Bos grunniens). Genet Mol Res 2015; 14:2617-25. [PMID: 25867409 DOI: 10.4238/2015.march.30.21] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Fatty acid synthase (FASN) is a key enzyme in fatty acid anabolism that plays an important role in the fat deposit of eukaryotic cells. Therefore, in this study, we detected 2 novel single-nucleotide polymorphisms (SNPs) in the FASN gene in 313 adult individuals of Datong yak using polymerase chain reaction-single strand conformation polymorphism and DNA sequencing techniques. SNP g.5477C>T is located in intron 3 of FASN, and 3 genotypes, HH, HG, and GG, were detected in this mutation site. SNP g.16930T>A is located in exon 37 of FASN, and 2 genotypes, EE and EF, were detected in this site. Association analysis of these 2 SNPs with meat quality traits showed that in SNP g.5477C>T, yaks with the HH genotype and HG genotype had significantly higher intramuscular fat content than individuals with the GG genotype (P < 0.01). In SNP g.16930T>A, yaks with the EE genotype also had significantly higher IMF content than individuals with the EF genotype (P < 0.01). The results indicate that FASN may be used as a candidate gene affecting intramuscular fat content in Datong yaks.
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Affiliation(s)
- M Chu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
| | - X Y Wu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
| | - X Guo
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
| | - J Pei
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
| | - F Jiao
- Food and Drug Administration of Jinchang, Jinchang, China
| | - H T Fang
- Food and Drug Administration of Jinchang, Jinchang, China
| | - C N Liang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
| | - X Z Ding
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
| | - P J Bao
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou, China
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35
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Yang X, Wu S, Zhu D, Wu H, Jiang T, Qian Y, Jiao F. Expression of the 2-dehydro-3-deoxyphosphooctonate aldolase (KdsA) gene in mulberry leaves (Morus alba L.) is down-regulated under high salt and drought stress. Genet Mol Res 2015; 14:11955-64. [DOI: 10.4238/2015.october.5.9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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36
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Qin W, Jiao F, Sun W, Wang X, Liu B, Wang J, Zeng K, Wei Q, Liu K. Effects of sodium salt of N,N-dimethyldi-thiocarbamate on floatability of chalcopyrite, sphalerite, marmatite and its adsorption properties. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.01.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Affiliation(s)
- Wenqing Qin
- School of Minerals Processing and
Bioengineering, Central South University, Changsha 410083, China
| | - Fen Jiao
- School of Minerals Processing and
Bioengineering, Central South University, Changsha 410083, China
| | - Wei Sun
- School of Minerals Processing and
Bioengineering, Central South University, Changsha 410083, China
| | - Mingfei He
- School of Minerals Processing and
Bioengineering, Central South University, Changsha 410083, China
| | - Hongjun Huang
- School of Minerals Processing and
Bioengineering, Central South University, Changsha 410083, China
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38
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Qin W, Jiao F, Xu B, Liu H. Purification of Leachate from Simultaneous Leaching of Galena Concentrate and Pyrolusite and Preparation of PbSO4 and Mn3O4. Ind Eng Chem Res 2012. [DOI: 10.1021/ie2024678] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wenqing Qin
- School of Minerals
Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Fen Jiao
- School of Minerals
Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Benjun Xu
- School of Minerals
Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Hui Liu
- School of Minerals
Processing and Bioengineering, Central South University, Changsha 410083, China
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39
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Samuel R, Sant HJ, Jiao F, Johnson CR, Gale BK. Microfluidic laminate-based phantom for diffusion tensor-magnetic resonance imaging (DT-MRI). J Micromech Microeng 2011; 21:950271-9502711. [PMID: 22865956 PMCID: PMC3410755 DOI: 10.1088/0960-1317/21/9/095027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper reports fabrication of a magnetic resonance imaging (MRI) phantom created by stacking of multiple thin polydimethylsiloxane (PDMS) layers. PDMS is spin coated on SU-8 molds to obtain the desired layer thickness and imprints of the microchannel patterns that define the phantom geometry. This paper also identifies the unique challenges related to the fabrication and assembly of multiple thin layers and reports for the first time assembly of a large number of thin laminates of this nature. Use of photolithography techniques allows us to create a wide range of phantom geometries. The target dimensions of the phantoms reported here are (i) a stack of 30 thin PDMS layers of 10 µm thickness (ii) curved 5 µm × 5 µm microchannels with 8.7 µm spacing, and (iii) straight 5 µm × 5 µm microchannels with 3.6 µm spacing. SEM scans of the assembled phantoms show open microchannels and a monolithic cross-section with no visible interface between PDMS layers. Based on the results of diffusion tensor magnetic resonance imaging (DT-MRI) scan, the anisotropic diffusion of water molecules due to the physical restriction of the microchannels was detected, which means that the phantom can be used to calibrate and optimize MRI instrumentation.
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Affiliation(s)
- R Samuel
- State of Utah Center of Excellence for Biomedical Microfluidics, University of Utah, 50 S. Central Campus Dr., Rm. 2110, Salt Lake City, UT 84112
| | - H J Sant
- State of Utah Center of Excellence for Biomedical Microfluidics, University of Utah, 50 S. Central Campus Dr., Rm. 2110, Salt Lake City, UT 84112
| | - F Jiao
- Scientific Computing and Imaging Institute, University of Utah, 72 S Central Campus Dr. Rm. 3750, Salt Lake City, UT 84112
| | - C R Johnson
- Scientific Computing and Imaging Institute, University of Utah, 72 S Central Campus Dr. Rm. 3750, Salt Lake City, UT 84112
| | - B K Gale
- State of Utah Center of Excellence for Biomedical Microfluidics, University of Utah, 50 S. Central Campus Dr., Rm. 2110, Salt Lake City, UT 84112
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40
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Wang J, Wang XF, Zhang LG, Xie SY, Li ZL, Li YJ, Li HH, Jiao F. Involvement of the mitochondrial pathway in p53-independent apoptosis induced by p28GANK knockdown in Hep3B cells. Cytogenet Genome Res 2009; 125:87-97. [PMID: 19729910 DOI: 10.1159/000227831] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2009] [Indexed: 11/19/2022] Open
Abstract
It is well known that TP53 may mediate apoptosis triggered by anticancer drugs. However, accumulating evidence indicates that TP53 may be inactivated by mutations and/or deletions in about 50% of human cancers and, as such, may lead to pronounced resistance to therapeutic agents. Thus, the development of new approaches to improve the efficiency of therapeutic agents in cancer cells harboring mutant TP53 may have a significant impact on cancer treatment. It has been reported that knockdown by RNA interference (RNAi) of p28GANK (an alias of the gene PSMD10), a novel oncogene over-expressed in hepatocellular carcinoma (HCC), can induce apoptosis in HepG2, a TP53-intact HCC cell line. Because of the high frequency TP53 mutations in HCC, it is relevant to know whether p28GANK knockdown-induced apoptosis is also operational in TP53-negative HCC cells. Here, we investigated Adsip28GANK-induced apoptosis in the TP53-negative HCC cell line Hep3B. Our results indicate that p28GANK-knockdown induces the generation of reactive oxygen species (ROS), which in turn activates p38. Since p38 can signal to Bax, its activation may lead to mitochondrial transmembrane potential (Delta psi m) loss, cytochrome c release from mitochondria to cytosol, and caspase-9 activation, eventually triggering the mitochondrial pathway of apoptosis.
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Affiliation(s)
- J Wang
- Department of Biotechnology, Binzhou Medical College, Binzhou, PR China
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Wang PY, Xie S, Cui AD, Jiao F, Li ZL, Bai XY, Liu F. Inhibiting gene expression in vivo by virus-mediated small interfering RNA. Mol Biol 2008. [DOI: 10.1134/s0026893308060083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wang PY, Xie S, Cui AD, Jiao F, Li ZL, Bai XY, Liu F. [Inhibiting gene expression in vivo by virus-mediated small interfering RNA]. Mol Biol (Mosk) 2008; 42:997-1003. [PMID: 19140319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Inhibiting gene expression in specific tissues and organs through intravenous injection would be the ultimately preferred method of disease therapy. Here, we report the successful delivery of lentivirus-mediated small interfering RNA (siRNA) to suppress the GFP gene expression in living mice. First, a lentiviral vector with siRNA (len-siRNA) driven by H1 promoter was constructed to suppress GFP expression effectively in Mel cells. When the len-siRNA virus was injected into transgenic mice, the GFP expression was significantly suppressed (over 15% reduction) in the recipient mice compared to the control mice and the suppressing effect lasted more than one week after injection. Our results demonstrate a new effective approach to inhibit gene expression by siRNA and lentiviral vectors. Further development of this suppression of gene expression siRNA drug should result in applications not only for cancers but also for infectious and immune diseases.
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Jiao F, Zhu X, Zhao B, Liu C, Gao G. Optimum design and grinding performance of ultrasonic hone-lapping tool with fixed abrasive material. IJCAT 2007. [DOI: 10.1504/ijcat.2007.015248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yang X, Jiao F, Zhang Y, Wang J. [Substitution of diphenyl sulfurine to trinuclear clusters and infrared spectra characterization]. Guang Pu Xue Yu Guang Pu Fen Xi 2001; 21:475-477. [PMID: 12945265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Substitution of diphenyl sulfurine to dodecarbonyl-triruthenium and dodecarbonyl-triiron were studied respectively. Infrared spectra were used in characterization of the reactions and to follow the reaction processes from starting to finishing. Spectra data showed that the new compounds appeared and starting materials disappeared. The results products Ru3 (CO)9CSN2HPh2 and Fe3 (CO)8S2CNPh were taken in KBr pellet infrared spectras. C, S and N in diphenyl sulfurine might coordinate to transitionmetal atoms in the clusters. Since trinuclear ruthenium and iron clusters have different stability and diphenyl sulfurine induced attacked to cluster skeleton in reaction, Ru3 (CO)12 and Fe3 (CO)12 give different coordination structure trinuclear Ru and Fe clusters, in which every metal atom forms 18 e constitution.
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Affiliation(s)
- X Yang
- Department of Chemistry, Jinan University, 250002 Jinan
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Jiao F, Zhang Y. [Study in coordination substitution of trinuclear iron and ruthenium clusters by infrared and ultraviolet spectroscopy]. Guang Pu Xue Yu Guang Pu Fen Xi 2001; 21:183-186. [PMID: 12947616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this paper, ultraviolet spectra and infrared spectra were used in the characterization of the reaction in which carbonyls in trinuclear-iron cluster and trinuclear-ruthenium cluster were substituted by Ph2C2 and PPh3 respectively. The spectra showed the process of the new compounds appear and starting materials disappear separately. Infrared spectra data in KBr pellets further proved the result products. Reaction of Ru3(CO)12 with PPh3 (mol ratio = 1:3) in hexane affords Ru3(CO)9 (PPh3)3, a red microcrystalline solid and Fe3(CO)12 with Ph2C2 (mol ratio = 1:1) affords Fe3(CO)10 (Ph2C2) a deep green crystals. In the study, the ultraviolet spectra and infrared spectra of reaction solutions changed following the reactions, given a information in which we known the reaction starting and finishing. Then new compounds possibly were separated from reaction solutions. This is an important method used for synthesis and catalysis.
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Affiliation(s)
- F Jiao
- Department of Chemistry, Jinan University, 250002 Jinan
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Jiao F, Yang L, Li Y, Qiao J, Guo X, Zhang T, Kawasaki T, Sonobe T, Yanagawa H. Epidemiologic and clinical characteristics of Kawasaki disease in Shaanxi Province, China, 1993-1997. J Trop Pediatr 2001; 47:54-6. [PMID: 11245353 DOI: 10.1093/tropej/47.1.54] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The objective of this paper is to describe the epidemiological and clinical characteristics of Kawasaki disease (KD) in Shaanxi Province, China during the 5-year period from January 1993 to December 1997. A province-wide epidemiological survey on KD was made by the China-Japan Kawasaki Disease Study Group. The questionnaire form and the diagnostic criteria of KD, which were prepared by the Japan Kawasaki Disease Research Committee and translated into Chinese, were sent to the departments of pediatrics of all the hospitals with 100 beds or more in Shaanxi province. All the KD patients who were diagnosed during the observation period from 1993 to 1997 were asked to take part in this survey. The databases of reported KD in this survey were analysed at the Department of Pediatrics of the Shaanxi Provincial People's Hospital, Xi'an, China. All the patients that satisfied the diagnostic criteria were included in the report. A total of 105 (70 per cent) hospitals responded and 376 cases of KD were confirmed. More cases were reported in 1993 and 1994. Of the total patients reported, 69 per cent were children under 3 years old with a male to female ratio of 1.6:1. The proportion of patients with cardiac sequelae was 19 per cent with a male to female ratio of 3:1. There were four fatal cases with a fatality rate of 1 per cent. It is concluded that KD is common in China. Continuous surveillance is necessary to maintain high awareness of KD so as to find possible risk factors and their association with the disease.
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Affiliation(s)
- F Jiao
- Department of Pediatrics, The Shaanxi Provincial People's Hospital, Xi'an, China.
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Jiao F, Qiao J, Zhou X, Li Y, Kang H. [A clinical and epidemiological study of 86 cases on abused children]. Zhonghua Liu Xing Bing Xue Za Zhi 2000; 21:335-7. [PMID: 11860809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To study the clinical and epidemiological manifestations on abused children, in order to find ways of prevention. METHODS Retrospective study was carried out clinically and epidemiologically on 86 cases abused children from 1998.1 - 1999.12. RESULTS The sex ratio (male:female) in the abused children was 0.76:1. Most cases were 3 - 16 years olds. Abuse incidences were most commonly occurred in spring and winter, accounted for 32.56% and 33.72% respectively. Most abuses happened physically (45.34%), predominantly involved skin (30.23%) and parenchyma (11.27%). Mental abuse accounted for 24.41%. 14 cases resulted in death (16.27%). 55 (64%) of the abusers were illiterate or with poor education. CONCLUSION The abused sites mostly involved skin and parenchyma, but also caused harm to children's mental health, even causing deaths. Most abused children were female and abusers had lower cultural background. Thus, we need to provide a sounding board, to work on child abuse preventin.
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Affiliation(s)
- F Jiao
- Dept. of Pediatrics, Shaanxi Provincial People's Hospital, Xi'an 710068, China
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Jiao F, Yang L, Qiao J, Li Y, Zhang T, Liu C. [Epidemiological and clinical characteristics of Kawasaki disease in Shanxi province]. Zhonghua Liu Xing Bing Xue Za Zhi 2000; 21:97-9. [PMID: 11860764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE The objective of this paper is to describe the epidemiological and clinical characteristics of Kawasaki disease (KD) in Shanxi province, China during a 5 year - period from January 1993 to December 1997. METHODS A province - wide epidemiological survey on Kawasaki disease (KD) was carried ont by the China - Japan Kawasaki disease study group. The questionnaire form and the diagnostic criteria of KD which was prepared by the Japan Kawasaki disease research committee and translated into Chinese were sent of the departments of pediatrics of all the hospitals with 100 or more beds in Shanxi province. All the KD patients who were diagnosed during the observation period from 1993 to 1997 were asked to report to this survey. The database of reported KD in this survey was analyzed at the Department of pediatrics of the Shanxi provincial people's hospital, Xian, China. All the patients that satisfied the diagnostic criteria were included. RESULTS A total of 105 (70%) hospitals responded and 376 cases of KD were confirmed. More cases were reported in 1993 and 1994. Of the total patients reported, 69% were children under 3 years old with male to female ratio of 1.6:1. The proportion of patients with cardiac sequelae was 19% with male to female ratio: 3:1. There were 4 fatal cases with a fatality rate of 1%. CONCLUSIONS Since KD is common in China continuous surveillance is necessary to maintain high awareness of KD so as to identify possible risk factors and its association with other disease.
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Affiliation(s)
- F Jiao
- Department of Pediatrics, Shanxi Provincial People's Hospital, Xian 710068, China
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Mukherji D, Jiao F, Chen W, Wahi R. Stacking fault formation in γ′ phase during monotonic deformation of IN738LC at elevated temperatures. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0956-7151(91)90237-u] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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