101
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Yan JH, Zhu HM, Jiang XG, Chi Y, Cen KF. Analysis of volatile species kinetics during typical medical waste materials pyrolysis using a distributed activation energy model. JOURNAL OF HAZARDOUS MATERIALS 2009; 162:646-651. [PMID: 18579296 DOI: 10.1016/j.jhazmat.2008.05.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 05/14/2008] [Accepted: 05/15/2008] [Indexed: 05/26/2023]
Abstract
The complex reactions of typical medical waste materials pyrolysis and the evolution of different volatile species can be well represented by a Distributed Activation Energy Model (DAEM). In this study, A thermogravimetric analyser (TGA), coupled with Fourier transform infrared analysis of evolving products (TG-FTIR), were used to perform kinetic analysis of typical medical waste materials pyrolysis. A simple direct search method was used for the determination of DAEM kinetic parameters and the yield of individual pyrolysis products under any given heating condition. The agreement between the model prediction and the experimental data was generally good. The results can be used as inputs to a pyrolysis model based on first-order kinetic expression with a Gaussian Distribution of Activation Energies as a sub-model to CFD code.
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102
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Fragkoudis R, Chi Y, Siu RWC, Barry G, Attarzadeh-Yazdi G, Merits A, Nash AA, Fazakerley JK, Kohl A. Semliki Forest virus strongly reduces mosquito host defence signaling. INSECT MOLECULAR BIOLOGY 2008; 17:647-56. [PMID: 18811601 PMCID: PMC2710796 DOI: 10.1111/j.1365-2583.2008.00834.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The Alphavirus genus within the Togaviridae family contains several important mosquito-borne arboviruses. Other than the antiviral activity of RNAi, relatively little is known about alphavirus interactions with insect cell defences. Here we show that Semliki Forest virus (SFV) infection of Aedes albopictus-derived U4.4 mosquito cells reduces cellular gene expression. Activation prior to SFV infection of pathways involving STAT/IMD, but not Toll signaling reduced subsequent virus gene expression and RNA levels. These pathways are therefore not only able to mediate protective responses against bacteria but also arboviruses. However, SFV infection of mosquito cells did not result in activation of any of these pathways and suppressed their subsequent activation by other stimuli.
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103
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Liu J, Wang HH, Gao W, Chi Y, Tian Y. Cervical esophageal capillary hemangioma removed by combined and sequential endoscopic ligation and snare polypectomy. Endoscopy 2008; 40 Suppl 2:E179-80. [PMID: 18668466 DOI: 10.1055/s-2007-995810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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104
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Liang J, Chi Y, Yan D. Cone Beam CT Image Based Adaptive Inverse Planning for Head and Neck Cancer: A Validation Study. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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105
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Feng W, Deng J, Chi Y, Drake D, Bakalyar D, Yan D. SU-GG-J-130: Monte Carlo Simulation of Elekta XVI Cone Beam System and Dose Distribution in CTDI Phantom. Med Phys 2008. [DOI: 10.1118/1.2961679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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106
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Chi Y, Liang J, Zhang T, Yan D. SU-GG-J-42: Automatic Contour Delineation On Cone Beam CT (CBCT) and Verification. Med Phys 2008. [DOI: 10.1118/1.2961600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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107
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Han ZB, Ren H, Zhao H, Chi Y, Chen K, Zhou B, Liu YJ, Zhang L, Xu B, Liu B, Yang R, Han ZC. Hypoxia-inducible factor (HIF)-1 directly enhances the transcriptional activity of stem cell factor (SCF) in response to hypoxia and epidermal growth factor (EGF). Carcinogenesis 2008; 29:1853-61. [DOI: 10.1093/carcin/bgn066] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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108
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Yan D, Liang J, Chi Y, Zhang T, Zhang P. Patient Anatomy/Dose Tracking and Feedback System for Image Guided Adaptive Radiotherapy. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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109
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Hasan Y, Kim L, Wloch J, Chi Y, Liang J, Kestin L, Martinez A, Yan D, Vicini F. Comparison of Planned Versus Actual Dose Delivered for External Beam Accelerated Partial Breast Irradiation (EB APBI) Using Cone-Beam CT (CBCT) and Deformable Registration. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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110
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Zhang XH, Chi Y, Bing F, Ming-Jie C, Shang-Yong Z, Wang BL. One-stage joint reconstruction and distraction osteogenesis in management of of TMJ ankylosis. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.08.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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111
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112
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Zhang T, Chi Y, Drake D, Yan D, Meldolesi E. TH-D-M100F-05: Online Region-Of-Interest Delineation of Daily Head and Neck Images. Med Phys 2007. [DOI: 10.1118/1.2761705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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113
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Wu Q, Chi Y, Wloch J, Yan D. SU-FF-J-73: Non-Rigid Setup Errors in HN-IMRT Patients and Their Dosimetric Effect. Med Phys 2007. [DOI: 10.1118/1.2760578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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114
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Chen YL, Hsu CC, Song YH, Chi Y, Carty A, Peng SM, Lee GH. Iridium Metal Thin Films and Patterned IrO2 Nanowires Deposited Using Iridium(I) Carbonyl Precursors. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cvde.200606491] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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115
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Zhang T, Meldolesi E, Chi Y, Yan D. SU-FF-J-35: Clinical Applications of 3D and 4D Deformable Image Registration for Image Guided Radiotherapy. Med Phys 2006. [DOI: 10.1118/1.2240813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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116
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Chi Y, Liang J, Yan D. A material sensitivity study on the accuracy of deformable organ registration using linear biomechanical modelsa). Med Phys 2006; 33:421-33. [PMID: 16532950 DOI: 10.1118/1.2163838] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Model-based deformable organ registration techniques using the finite element method (FEM) have recently been investigated intensively and applied to image-guided adaptive radiotherapy (IGART). These techniques assume that human organs are linearly elastic material, and their mechanical properties are predetermined. Unfortunately, the accurate measurement of the tissue material properties is challenging and the properties usually vary between patients. A common issue is therefore the achievable accuracy of the calculation due to the limited access to tissue elastic material constants. In this study, we performed a systematic investigation on this subject based on tissue biomechanics and computer simulations to establish the relationships between achievable registration accuracy and tissue mechanical and organ geometrical properties. Primarily we focused on image registration for three organs: rectal wall, bladder wall, and prostate. The tissue anisotropy due to orientation preference in tissue fiber alignment is captured by using an orthotropic or a transversely isotropic elastic model. First we developed biomechanical models for the rectal wall, bladder wall, and prostate using simplified geometries and investigated the effect of varying material parameters on the resulting organ deformation. Then computer models based on patient image data were constructed, and image registrations were performed. The sensitivity of registration errors was studied by perturbating the tissue material properties from their mean values while fixing the boundary conditions. The simulation results demonstrated that registration error for a subvolume increases as its distance from the boundary increases. Also, a variable associated with material stability was found to be a dominant factor in registration accuracy in the context of material uncertainty. For hollow thin organs such as rectal walls and bladder walls, the registration errors are limited. Given 30% in material uncertainty, the registration error is limited to within 1.3 mm. For a solid organ such as the prostate, the registration errors are much larger. Given 30% in material uncertainty, the registration error can reach 4.5 mm. However, the registration error distribution for prostates shows that most of the subvolumes have a much smaller registration error. A deformable organ registration technique that uses FEM is a good candidate in IGART if the mean material parameters are available.
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117
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Chi Y, Liang J, Yan D. Accuracy of Deformable Organ Registration in Image Guided Adaptive Radiotherapy. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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118
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Li SQ, Yao Q, Wen SE, Chi Y, Yan JH. Properties of pyrolytic chars and activated carbons derived from pilot-scale pyrolysis of used tires. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2005; 55:1315-26. [PMID: 16259427 DOI: 10.1080/10473289.2005.10464728] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Used tires were pyrolyzed in a pilot-scale quasi-inert rotary kiln. Influences of variables, such as time, temperature, and agent flow, on the activation of obtained char were subsequently investigated in a laboratory-scale fixed bed. Mesoporous pores are found to be dominant in the pore structures of raw char. Brunauer-Emmett-Teller (BET) surfaces of activated chars increased linearly with carbon burnoff. The carbon burnoff of tire char achieved by carbon dioxide (CO2) under otherwise identical conditions was on average 75% of that achieved by steam, but their BET surfaces are almost the same. The proper activation greatly improved the aqueous adsorption of raw char, especially for small molecular adsorbates, for example, phenol from 6 to 51 mg/g. With increasing burnoff, phenol adsorption exhibited a first-stage linear increase followed by a rapid drop after 30% burnoff. Similarly, iodine adsorption first increased linearly, but it held as the burnoff exceeded 40%, which implied that the reduction of iodine adsorption due to decreasing micropores was partially made up by increasing mesopores. Both raw chars and activated chars showed appreciable adsorption capacity of methylene-blue comparable with that of commercial carbons. Thus, tire-derived activated carbons can be used as an excellent mesoporous adsorbent for larger molecular species.
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119
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Wu LC, Lee GH, Chi Y, Wang CC, Wang Y. Structure and magnetic properties of 3-substituted-5-(2-pyridyl) pyrazole metal(II) complexes. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305085296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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120
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Chi Y, Lay E, Chou TY, Song YH, Carty AJ. Deposition of Silver Thin Films Using the Pyrazolate Complex [Ag(3,5-(CF3)2C3HN2)]3. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/cvde.200406351] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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121
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Li SQ, Yao Q, Chi Y, Yan JH, Cen KF. Pilot-Scale Pyrolysis of Scrap Tires in a Continuous Rotary Kiln Reactor. Ind Eng Chem Res 2004. [DOI: 10.1021/ie030115m] [Citation(s) in RCA: 171] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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122
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Chou TY, Lai YH, Chen YL, Chi Y, Prasad K, Carty A, Peng SM, Lee GH. Synthesis and Characterization of Tris(β-ketoiminato)ruthenium(III) Complexes: Potential Precursors for CVD of Ru and RuO2 Thin Films. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/cvde.200306284] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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123
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Chi Y, Cole J, Isik F. 473 MALIGNANT MELANOMA OF THE HEAD AND NECK: SAFETY OF IMMEDIATE FLAP RECONSRUCTION. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl1-472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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124
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Chen RS, Chen YS, Huang YS, Chen YL, Chi Y, Liu CS, Tiong KK, Carty A. Growth of IrO2 Films and Nanorods by Means of CVD: An Example of Compositional and Morphological Control of Nanostructures. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/cvde.200304153] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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125
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Huang SF, Chi Y, Liu CS, Carty A, Mast K, Bock C, MacDougall B, Peng SM, Lee GH. Preparation of Pt–Ru Alloyed Thin Films Using a Single-Source CVD Precursor. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/cvde.200306231] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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