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前列腺癌3T MR直肠内扩散加权成像:肿瘤检测和侵袭性评估

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国际医学放射学杂志 2011年第4期 385-386页

作者： H.A.Vargas O.Akin T.Franiel y.mazaheri C.Moskowitz 陈仁彪 Departments of Radiology Medical PhysicsEpidemiology and BiostatisticsPathologyUrologyand SurgeryMemorial Sloan-Kettering Cancer Center

目的以全标本包埋逐层切片(whole-mount step-section)病理分析作为参考标准,评估3TMR在T2WI基础上扩散加权(DW)成像对增加前列腺癌检测的价值,同时探讨应用表观扩散系数(ADC)确定肿瘤侵袭性的特点。材料与方法此项回顾性研究符合HIPAA... 详细信息

目的以全标本包埋逐层切片(whole-mount step-section)病理分析作为参考标准,评估3TMR在T2WI基础上扩散加权(DW)成像对增加前列腺癌检测的价值,同时探讨应用表观扩散系数(ADC)确定肿瘤侵袭性的特点。材料与方法此项回顾性研究符合HIPAA并获得机构审查委员会批

关键词：前列腺癌 DW 肿瘤检测 MR 侵袭性

T2WI与扩散加权MRI联合测量前列腺肿瘤体积与病理肿瘤体积的对照研究

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国际医学放射学杂志 2009年第5期32卷 497-498页

作者： y.mazaheri H.Hricak S.W.Fine O.Akin A.Shukla-Dave N.M.Ishill 秦乃姗 Department of Medical Physics Memorial Sloan-Kettering Cancer Center

目的回顾性测定扩散加权（DW）MR1分辨前列腺外周带（PZ）肿瘤的准确性，并以手术病理检查为参考标准评价T2WI和T2W联合DWMRI测量肿瘤体积的准确性。材料和方法本研究经机构审核委员会批准免除知情同意通知．研究符合健康医疗保险要求。

关键词：扩散加权MRI MRI测量肿瘤体积 T2WI 病理检查前列腺医疗保险委员会

前列腺癌:利用MR扩散加权成像和动态增强MRI定量评估雄激素阻断治疗疗效

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国际医学放射学杂志 2015年第6期 597-598页

作者： A.M.Htker y.mazaheri J.Zheng C.S.Moskowitz J.Berkowitz J.E.Lantos 陈丽华 Department of Radiology Memorial Sloan-Kettering Cancer Center

摘要目的研究前列腺癌雄激素阻断治疗(ADT)后MRI参数上的改变,以及与治疗后反应间的相关性。方法经病理证实为前列腺癌的30例男性病人纳入本研究,且均于ADT

关键词：前列腺癌雄激素性甾体 MR 动态增强阻断治疗 MRI

前列腺癌的侵犯:全病变表观扩散系数直方图分析的评价

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国际医学放射学杂志 2014年第3期 285-285页

作者： O.F.Donati y.mazaheri A.Afaq H.A.Vargas J.Zheng C.S.Moskowitz 唐光健 Department of Radiology Memorial Sloan-Kettering Cancer Center1275 York AveNew YorkNY 10065USA

摘要目的评价前列腺癌侵犯与前列腺全病变辅助扩散加权MRI直方图表观扩散系数(ADC)的相关性,确定哪一种ADC测量对于鉴别低分级与中或高分级前列腺癌最好。

关键词：前列腺癌扩散加权病变表观扩散系数直方图

多参数MRI评估直肠癌术前行辅助放化疗疗效:形态、体积和功能MRI参数的比较

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国际医学放射学杂志 2017年第1期 110-110页

作者： A.M.Htker L.Tarlinton y.mazaheri K.M.Woo M.G .Wo L.B.Saltz 黄黎香 Department of Radiology Memorial Sloan Kettering Cancer Center

摘要目的比较形态学MRI和功能MRI指标,并确定评估直肠癌术前行辅助放化疗疗效的最佳方法。材料与方法本回顾性研究纳入24例经病理证实的直肠腺癌病人,在术

关键词： MRI 辅助放化疗肿瘤体积术前直肠癌直肠肿瘤疗效功能

Bending analysis of five-layer curved functionally graded sandwich panel in magnetic field:closed-form solution

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Applied Mathematics and Mechanics(English Edition) 2021年第2期42卷 251-274页

作者： M.SHABAN H.mazaheri Mechanical Engineering Department Bu-Ali Sina UniversityHamadan 3869-6517Iran

In this paper,an exact closed-form solution for a curved sandwich panel with two piezoelectric layers as actuator and sensor that are inserted in the top and bottom facings is *** core is made from functionally graded(FG)material that has heterogeneous power-law distribution through the radial *** is assumed that the core is subjected to a magnetic field whereas the core is covered by two insulated composite *** determine the exact solution,first characteristic equations are derived for different material types in a polar coordinate system,namely,magneto-elastic,elastic,and electro-elastic for the FG,orthotropic,and piezoelectric materials,*** displacement-based method is used instead of the stress-based method to derive a set of closed-form real-valued solutions for both real and complex *** on the elasticity theory,exact solutions for the governing equations are determined layer-by-layer that are considerably more accurate than typical simplified *** accuracy of the presented method is compared and validated with the available literature and the finite element *** effects of geometrical and material parameters such as FG index,angular span along with external conditions such as magnetic field,mechanical pressure,and electrical difference are investigated in detail through numerical examples.

关键词： five-layer sandwich panel piezoelectric material closed-form solution functionally graded(FG)material magnetic field

Design and optimization of nano-antenna for thermal ablation of liver cancer cells

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Chinese Physics B 2021年第4期30卷 574-585页

作者： Mohammad Javad Rabienejhad Azardokht mazaheri Mahdi Davoudi-Darareh Optics and Laser Science and Technology Research Center Malek Ashtar University of TechnologyShahinshahrIran Department of Physics University of IsfahanIran Faculty of Science Malek Ashtar University of TechnologyShahinshahrIran

One method of cancer therapy is to utilize nano-antenna for thermal *** this method,the electromagnetic waves emitted from the nano-antenna are absorbed by the tissue and lead to heating of cancer *** temperature of cancer cells reaches a threshold,they will begin to *** this purpose,an L-shaped frame nano-antenna(LSFNA) is designed to introduce into the biological ***,the radiation characteristics of the LSFNA such as near and far-field intensities,directivity,and sensitivity to its gap width are studied to the optimization of the *** bio-heat and Maxwell equations are solved using the finite element *** prevent damage to healthy tissues in this method,the antenna radiation must be completely controlled and performed ***,penetration depth,special absorption rate,temperature distribution,and the fraction of tissue necrosis are analyzed in the biological *** is why the design and optimization of the nano-antennas as a radiation source is ***,a pulsed source is used to excite the ***,focusing and efficiency of the nano-antenna radiation on the cancer cell is tuned using an adjustable liquid crystal *** focus of this lens is changing under an electric field applied to its surrounding cathode.

关键词： cancer therapy directivity far-field intensity hyperthermia liver cancer nano-antenna thermalablation tunable liquid crystal lens

Electrochemical Behavior of Passive Films Formed on the Surface of Coarse-,Fine-and Ultra-fine-Grained AA1050 Based on a Modified PDM

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Acta Metallurgica Sinica(English Letters) 2016年第7期29卷 629-637页

作者： Seyed Omid Gashti Arash Fattah-alhosseini yousef mazaheri Department of Materials Engineering Bu-Ali Sina University

Electrochemical impedance spectroscopy （EIS） and Mott-Schottky analysis were carried out to evaluate the electrochemical behavior of the passive films formed on the surface of coarse-grained （CG）, fine-grained （FG） and ultrafine-grained （UFG） 1050 A1 alloy （AA1050） samples in alkaline media （pH value of 8.0） based on a modification of point defect model （PDM）. The EIS results revealed that the polarization resistance increased from about 22.71-120.33 kΩ cm2 for UFG sample when compared to CG sample （annealed sample）. The semiconductor properties of the passive films formed on CG, FG and UFG AA1050 samples in the test solution were investigated by employing Mott-Schottky analysis in conjunction with PDM. The results indicated that donor densities were in the range of 2.19 × 1021-0.61 × 1021 cm-3 and decreased with grain refinement. Finally, all electrochemical tests showed that the electrochemical behavior of AA1050 alloy was improved by decreasing the grain size, mainly due to the formation of thicker and less defective oxide films.

关键词： AA1050 alloy Grain refinement Ultra-fine grain (UFG) Passive film Mott-Schottky

Acetone Adsorption on Pristine and Pt-doped Graphene:A First-Principles vdW-DF Study

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Communications in Theoretical Physics 2015年第11期64卷 576-582页

作者： Masoud Darvish Ganji Hoda mazaheri Azadeh Khosravi Department of Nanochemistry Faculty of Pharmaceutical Chemistry Pharmaceutical Sciences BranchIslamic Azad University Department of Chemistry Qaemshahr BranchIslamic Azad University young Researchers and Elite Club Central Tehran BranchIslamic Azad University

Using van der Waals corrected density functional theory(vdW-DF) method we have investigated the adsorption of acetone molecule on pristine and Pt-doped *** active sites for both the interacting systems have been considered in the adsorption process including full geometry *** have analyzed the structural and electrical properties of energetically favorable *** results show that adsorption of acetone molecule on the Pt-doped graphene is energetically *** binding energy and bonding distance are determined to be-5.277 eV and 2.206 A,respectively,accompanying with charge transfer of 1.11 ***,the Pt-0 bond is rather significantly elongated when acetone is adsorbed on Pt-doped *** to pristine graphene,the Pt-doped graphene has stronger interaction with the acetone and may provide more sensitive signai for a single acetone ***,practically,the band gap of Pt-doped graphene would become reduced after acetone ***,our first-principles study presents evidence for a coherent benchmark for the applicability of Pt-doped graphene for acetone adsorption and detection.

关键词： Pt-doped graphene acetone ab initio calculations s