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| 1 | Thermal Transport in Nanoporous Yttria-Stabilized Zirconia by Molecular Dynamics Simulation显示文摘Yttria-stabilized zirconia(YSZ) is widely used as thermal barrier coatings(TBCs) to reduce heat transfer between hot gases and metallic components in gas-turbine engines. Porous structure can generally reduce the lattice thermal conductivity of bulk material, so porous YSZ can be potentially used as TBCs with better thermal performance. In this work, we investigate the thermal conductivity of nanoporous YSZ using the nonequilibrium molecular dynamics(NEMD) simulation, and comprehensively discuss the effects of cross-sectional area, pore size, structure length, porosity, Y_2O_3 concentration and temperature on the thermal conductivity. To compare with the results of the NEMD simulation, we solve the heat diffusion equation and the gray Boltzmann transport equation(BTE) to calculate the thermal conductivity of the same porous structure. From the results,we find that the thermal conductivity of YSZ has a weak dependence on the structure length at the length range from 10 to 26 nm, which indicates that the majority of heat carriers have very short mean free path(MFP) but there exists small percentage(about 3%) of phonons with longer MFP(larger than 10 nm) contributing to the thermal conductivity. The thermal conductivity predicted by NEMD simulation is smaller than that of solving heat diffusion equation(diffusive limit) with the same porous structure. It shows that the presence of pores affects phonon scattering and further affects the thermal conductivity of nanoporous YSZ. The results agree well with the solution of gray BTE with a average MFP of 0.6 nm. The thermal conductivity of nanoporous YSZ weakly depends on the Y_2O_3 concentration and temperature, which shows the phonons with very short MFP play the major contribution to the thermal conductivity. The results help to better understand the heat transfer in porous YSZ structure and develop better TBCs. | 赵帅帅 邵成 ZAHIRI Saeid 赵长颖 鲍华 | 2018 | Journal of Shanghai Jiaotong university(Science)2018，23，1： | 4 |
| 2 | Optimizing the compressive strength of concrete containing micro-silica, nano-silica, and polypropylene fibers using extreme vertices mixture design显示文摘Many studies have evaluated the effects of additives such as nano-silica (NS), micro-silica (MS) and polymer fibers on optimizing the mechanical properties of concrete, such as compressive strength. Nowadays, with progress in cement industry provides, it has become possible to produce cement type I with strength classes of 32.5, 42.5, and 52.5 MPa. On the one hand, the microstructure of cement has changed, and modified by NS, MS, and polymers;therefore it is very important to determine the optimal percentage of each additives for those CSCs. In this study, 12 mix designs containing different percentages of MS, NS, and polymer fibers in three cement strength classes(CSCs)(32.5, 42.5, and 52.5 MPa) were designed and constructed based on the mixture method. Results indicated the sensitivity of each CSCs can be different on the NS or MS in compressive strength of concrete. Consequently, strength classes have a significant effect on the amount of MS and NS in mix design of concrete. While, polymer fibers don’t have significant effect in compressive strength considering CSCs. | Fatemeh ZAHIRI Hamid ESKANDARI-NADDAF | 2019 | Frontiers of Structural and Civil Engineering2019，13，4： | 3 |
| 3 | 《研真经》认主思想探析显示文摘《研真经》是波斯文著作《默格索德》(Maqsad al-aqsa)的汉文译本,其认主、认圣、认人及苏菲修行思想精深,是研究波斯伊斯兰教著作在中国传布及影响的一部珍贵文献。数百年来,该书在中国伊斯兰教内部流传并有一定影响,但国内外学界对《研真经》一书几乎没有研究。本文作者对照波斯文《默格索德》及其汉译本《研真经》和英译本逐字逐句解读,力求把握其思想精髓。 | 杨桂萍 Mahmoud Zahiri 孙智伟 | 2014 | 世界宗教研究2014，，2： | 2 |
| 4 | A new mo- lecular phylogeny offers hope for a stable family level classification of the Noctuoidea (Lepidoptera)显示文摘 | Zahiri R Kitching I J Lafontaine J D | 2011 | Zoo- logica Scripta2011，40，2： | 1 |
| 5 | Radicals in MTL-algebras 显示文摘 | SAEID A B ZAHIRI S | 2014 | Fuzzy Sets and Systems2014，236，： | 1 |
| 6 | Assessing activity in joint replacement patients 显示文摘 | Zahiri CA Sehmalzried TP Szuszczewicz ES | 1998 | J Arthroplasty1998，13，8： | 1 |
| 7 | Biochemical characterization of decaprenyl diphosphate synthase Rhodobacter sphaeroides for coenzyme Q10production显示文摘 | Zahiri H S Noghabi K A Shin Y C | 2006 | Appl Microbiol Biot2006，73，： | 1 |
| 8 | Relationships among the basal lineages of Noctuidae (Lepidoptera, Noctuoidea) based on eight gene regions显示文摘 | Zahiri R Lafontaine J D Schmidt C | 2013 | Zoologiea Scripta2013，42，： | 1 |
| 9 | Comparis- on between unilateral and bilateral ovarian drilling in clomi- phene citrate resistance polycystic ovary syndrome patients: A randomized clinical trial of efficacy 显示文摘 | Zahiri Sorouri Z Sharami SH Tahersima Z | 2015 | Int J Fertil Steril2015，9，1： | 1 |
| 10 | Feasibility of coronary artery wall thickening assessment in asymptomatic coronary artery disease using phase-sensitive dual-inversion recovery MR1 at 3T 显示文摘 | GHARIB AM ZAHIRI H MATrA J | 2013 | Magn Reson Imaging2013，31，7： | 1 |
| 11 | Effect of Processing Conditions on Porosity Formation in Cold Gas Dynamic Spraying of Copper显示文摘 | Zahiri S H Fraser D Gulizia S | 2006 | Journal of Thermal Spray Technology2006，15，3： | 1 |
| 12 | Mathematical modeling of the stress strain curves of TilF steel at high temperature显示文摘 | Ebrahimi R Zahiri S H Najafizadeh A | 2006 | Journal of Materials Processing Technology2006，171，： | 1 |
| 13 | Static and Metadynamic Recrystallization of Interstitial Free Steels During Hot Deformation 显示文摘 | Saden H Zahiri Song Min Byon Sung II Kim | 2004 | ISIJ International2004，44，： | 1 |
| 14 | Coenzyme Q10 production in recombinant Escherichia coil strains engineered with a heterologous decaprenyl diphosphate synthase gene and foreign mevalonate pathway显示文摘 | Zahiri HS Yoon SH Keasling JD | 2006 | Metabolic Engineering2006，8，5： | 1 |
| 15 | A Mechanical Approach to Quantify Dynamic Recrystallization in Polycrystalline Metals 显示文摘 | Zahiri S H Davies C H J Hodgson P D | 2005 | Scripta Materialia2005，52，4： | 1 |
| 16 | Effect of processing conditions on porosity formation in cold gas dynamic spraying of copper 显示文摘 | Zahiri S H Fraser D Gulizia S | 2006 | Journal of Thermal Spray Technology2006，15，3： | 1 |
| 17 | Mathematical Mode- lling of the Stress-Strain Curves of Ti-IF Steel at High Temperature 显示文摘 | Ebrahimi R Zahiri S H Najafizadeh A | 2006 | Journal of Materials Processing Technology2006，171，2： | 1 |
| 18 | Differential gene expression during teliospore germination in Ustilago maydis显示文摘 | ZAHIRI A R BABU M R SAVILLE B J | 2005 | Mol G-en Genomics2005，273，： | 1 |
| 19 | Polymorphism of catalase gene (CAT C-262T) in women with endometriosis显示文摘 | Zarafshan S S Salehi Z Salahi E Sabet E E Shabanipour S Zahiri Z | 2015 | J Obstet Gynaecol2015，35，： | 1 |
| 20 | Static and Metadynamic Recrystallization of Interstitial Free Steels during Hot Deformation显示文摘 | Zahiri S H Byon S M Kim S | 2004 | ISU International2004，44，11： | 1 |
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