|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 采用Ag-Cu-Zn+Ni/Mn合金钎料的碳化钨钎焊接头的界面结构和力学性能(英文)显示文摘使用管式炉在高纯氩气中730℃下,以Ag-Cu-Zn+Ni/Mn合金为钎料焊接WC-Co硬质合金。研究钎焊时间和间隙尺寸对接头的影响。结果表明,焊接15 min,间隙尺寸为150μm的样品的最大剪切强度为(156±7)MPa。采用SEM,EDS和XRD手段表征钎焊接头的的特性和结构。焊接时间从5 min延长到15 min,为液体中间层流向基材提供了较好的机会。然而,当焊接时间超过15 min时,金属相如Mn_3W_3C的形成导致了接头的剪切强度降低。 | Mahyar HASANABADI Ali SHAMSIPUR Hasan NAJAFI SANI Hamid OMIDVAR Sima SAKHAEI | 2017 | Transactions of Nonferrous Metals Society of China2017，27，12： | 6 |
| 2 | 偏头痛患者的缺血性卒中风险:观察性研究的系统性综述和汇总分析显示文摘目的探讨偏头痛与缺血性卒中风险的相关性。设计系统性回顾和汇总分析。数据源检索Medline和Embase1966年至2004年6月公开发表的观察性研究,探讨偏头痛和缺血性卒中风险的关系。结果确定了14个研究(11个病例对照研究,3个大样本研究)。研究表明偏头痛患者发生卒中的风险增加(相对风险2.16,95%可信区间为1.89~2.48)。这种风险增加在有先兆的偏头痛患者(2.88,1.89~4.39)和无先兆的偏头痛患者(1.56,1.03~2.36)及服用口服避孕药者(8.72,5.05~15.05)中是一致的。结论观察性研究的资料显示偏头痛可能是卒中发生的一个危险因素。需要更多的研究去探讨其可能的机制。另外,需要进一步研究服用口服避孕药的偏头痛患者的卒中风险。 | Mahyar Etminan Bahi Takkouche Francisco Caamao Isorna Ali Samii 高晶 | 2005 | 英国医学杂志中文版2005，8，3： | 5 |
| 3 | Effect of RE elements on the microstructural and mechanical properties of as-cast and age hardening processed Mg-4Al-2Sn alloy显示文摘In the present article,the effect of Rare Earth elements on the microstructural development and mechanical properties of as cast and age treated Mg-4Al-2Sn(AT42)alloy is studied.Investigation has been conducted by optical and scanning electron microscope,XRD and tensile tests.Analysis of the data showed that alloy’s dendrites turn into larger dendritic structure with sharp and narrow arms from equiaxed rosette type by addition of RE elements.In contrast to the base alloy,aging treatment shows a positive effect on the mechanical properties(yield strength,tensile strength and elongation)of AT42+1RE alloy mainly because of retention of the thermally stable RE containing intermetallics as strong barriers to grain growth.Also,increase of solute aluminum due to the decomposition of Mg 17 Al 12 along with saturated RE elements led to formation of blocky shape Al 2 RE in the microstructure during aging which enhanced the mechanical properties.It was found that the best result(yield of 70 MPa,tensile strength of 168 MPa and elongation of 14%)could be achieved by aging the AT42+1RE alloy at 443 K(170℃)for 8 h.However,mechanical properties of AT42+1RE alloy starts to decrease after exceeding its optimum aging conditions due to the coarsening of intermetallics. | Amir Mahyar Majd Mohammad Farzinfar Matin Pashakhanlou Mohammad Javad Nayyeri | 2018 | Journal of Magnesium and Alloys2018，6，3： | 5 |
| 4 | Determination of safe mud window considering time-dependent variations of temperature and pore pressure:Analytical and numerical approaches显示文摘Wellbore stability is a key to have a successful drilling operation.Induced stresses are the main factors affecting wellbore instability and associated problems in drilling operations.These stresses are significantly impacted by pore pressure variation and thermal stresses in the field.In order to address wellbore instability problems,it is important to investigate the mechanisms of rockefluid interaction with respect to thermal and mechanical aspects.In order to understand the induced stresses,different mathematical models have been developed.In this study,the field equations governing the problem have been derived based on the thermo-poroelastic theory and solved analytically in Laplace domain.The results are transferred to time domain using Fourier inverse method.Finite difference method is also utilized to validate the results.Pore pressure and temperature distributions around the wellbore have been focused and simulated.Next,induced radial and tangential stresses for different cases of cooling and heating of formation are compared.In addition,the differences between thermo-poroelastic and poroelastic models in situation of permeable and impermeable wellbores are described.It is observed that cooling and pore pressure distribution reinforce the induced radial stress.Whereas cooling can be a tool to control and reduce tangential stress induced due to invasion of drilling fluid.In the next step,safe mud window is obtained using Mohr-Coulomb,Mogi-Coulomb,and modified Lade failure criteria for different inclinations.Temperature and pore pressure distributions do not change the minimum allowable wellbore pressure significantly.However,upper limit of mud window is sensitive to induced stresses and it seems vital to consider changes in temperature and pore pressure to avoid any failures.The widest and narrowest mud windows are proposed by modified Lade and Mohr-Coulomb failure criteria,respectively. | Alireza Gholilou Pouria Behnoud far Stephanie Vialle Mahyar Madadi | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，5： | 2 |
| 5 | Real-time immune-inspired optimum state-of-charge trajectory estimation using upcoming route information preview and neural networks for plug-in hybrid electric vehicles fuel economy显示文摘当前的调查的主要提议是开发能被用于最佳电池 state-of-charge (SOC ) 的即时评价的一个计算基于智力的框架在插件混血儿的轨道电的车辆(PHEV ) 。估计的 SOC 轨道然后能被采用让一个聪明的力量管理显著地改进车辆的燃料经济。设计聪明的 SOC 轨道建筑者利用即将来临的线路信息预览完成电和石块燃料的最低可能的全部的费用。减少即时优化的复杂性,作者建议允许把线路信息分成片断的一个预定义的数字的一条有免疫力的基于系统的聚类途径。聪明的即时优化器也在生物免疫系统根据相互作用被启发,并且被称为人工的有免疫力的算法(AIA ) 。优化器的客观函数从被从在 Autonomie 软件造的车辆的一个高保真模型获得的一个数据库训练的一个计算地有效的人工的神经网络(ANN ) 被导出。模拟结果证明免疫者的集成启发了聚类工具, AIA 和 ANN,将导致能为基线车辆产生一条近全球的最佳 SOC 轨道的一个强大的框架,也就是说丰田 Prius PHEV。当前的调查的结果证明由利用聪明的途径,为 PHEV 的聪明的力量管理设计一个计算地有效、强大的 SOC 轨道建筑者是可能的。 | Ahmad MOZAFFARI Mahyar VAJEDI Nasser L. AZAD | 2015 | Frontiers of Mechanical Engineering2015，10，2： | 2 |
| 6 | Fuzzy-GA based algorithm for optimal placement and sizing of distribution static compensator (DSTATCOM) for loss reduction of distribution network considering reconfiguration显示文摘This work presents a fuzzy based methodology for distribution system feeder reconfiguration considering DSTATCOM with an objective of minimizing real power loss and operating cost. Installation costs of DSTATCOM devices and the cost of system operation, namely, energy loss cost due to both reconfiguration and DSTATCOM placement, are combined to form the objective function to be minimized. The distribution system tie switches, DSTATCOM location and size have been optimally determined to obtain an appropriate operational condition. In the proposed approach, the fuzzy membership function of loss sensitivity is used for the selection of weak nodes in the power system for the placement of DSTATCOM and the optimal parameter settings of the DFACTS device along with optimal selection of tie switches in reconfiguration process are governed by genetic algorithm(GA). Simulation results on IEEE 33-bus and IEEE 69-bus test systems concluded that the combinatorial method using DSTATCOM and reconfiguration is preferable to reduce power losses to 34.44% for 33-bus system and to 45.43% for 69-bus system. | Mohammad Mohammadi Mahyar Abasi A.Mohammadi Rozbahani | 2017 | Journal of Central South University2017，24，2： | 1 |
| 7 | Comparison of serum IL lbeta and C reactive protein levels in early diagnosis and management of neonatal sepsis 显示文摘 | Ayazi P Mahyar A Daneshi MM | 2014 | Infez Med2014，22，4： | 1 |
| 8 | The Role of Tomato Products and Lyeopene in the Prevention of Prostate Cancer : A Meta--Analysis of Observational Studies 显示文摘 | Mahyar Etminan Bahi Takkouche Francisco Caaman- o - Isorna | 2004 | Cancer Epidemiology2004，13，3： | 1 |
| 9 | p21Waf1/Cip1 can protect human colon carcinoma cells against p53-dependent and p53 independent apoptosis induced by natural preventive and therapeutic agents 显示文摘 | Mahyar R M Roemer K | 2001 | Oncogene2001，20，： | 1 |
| 10 | Dendritic cell based tumor vaccines显示文摘 | Mahyar NS Jacques B Joseph F | 2000 | Immunol Lett2000，74，1： | 1 |
| 11 | Interaction between aspirin and ACE Inhibitors: resolving discrepancies using a meta-analysis显示文摘 | Bahi T Mahyar E francisco C | 2002 | Drug Saf2002，25，5： | 1 |
| 12 | The basis for the chemopreventive action of resveratrol显示文摘 | Roemer K Mahyar M | 2002 | Drugs Today2002，38，8： | 1 |
| 13 | A novel approach to interareaoscillation damping by unified power Flowcontrollers utilizing ultracapacitors显示文摘 | Mahyar Zarghami Mariesa L Crow JagannathanSarangapani | 2010 | IEEETransactions on Power Systems2010，25，1： | 1 |
| 14 | Determining optimal pollution control policies: An application of bilevel programming显示文摘 | Mahyar Amouzegar Khosrow Moshirvaziri | 1999 | European Journal of Operational Research1999，119，： | 1 |
| 15 | Zinc and Copper Status in Children with BetaThalassemia Major显示文摘 | MAHYAR A AYAZI P PAHLEVAN A A | | 0，，03： | 1 |
| 16 | Gas chromatography-mass spectrometry analysis of various organic extracts of Merremia borneensis from Sabah显示文摘Objective:To analyse the chemical composition of different extracts of Merremia borneensis(M. borneensis) by gas chromatography-mass spectrometry(GC-MS).Methods:The dried leaves powder was extracted with methanol at room temperature by using Soxhlet extractor.Methanol crude extracts of M.borneensis were extrastel with hexane,chloroform,ethyl acetate and butanol. Results:Qualitative analyses of various organic crude extracts showed that majority of these are flavonoids,terpeniods,alkaloids and glycosides.Most of the identified compounds by GCMS are biologically important.Further the M.borneensii leaf possesses certain characteristics that can be ascribed to cultivation on a domestic plantation.Conclusions:The suitable extracts for respective compounds can be chosen on the basis of above GC-MS analysis.All the major compounds from different extracts are biologically active molecules.Thus the identification of a good number of compounds from various extracts M.borneensis might have some ecological significance. | M Amzad Hossain Muhammad Dawood Shah Mahyar Sakari | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，8： | 1 |
| 17 | Wood-High- Density polyethylene composites: Water absorption and mechanical properties显示文摘 | Mahroo Jahadi Saied Nouri Khorasani Mahyar Palhang | 2011 | Journal of Applied Polymer Science2011，119，5： | 1 |
| 18 | Direct and indirect cross-tolerance of alloreactive T cells by dendritic cells retained the immature stage显示文摘 | Elisabeth G | 2002 | Transplantation2002，74，7： | 1 |
| 19 | Correlation Between Serum Selenium Level and Febrile Seizures显示文摘 | Abolfazl Mahyar Parviz Ayazi Mazdak Fallahi Amir Javadi | 2010 | Pediatric Neurology2010，，5： | 1 |
| 20 | Experimental assessment of the semi - rigid connections be- havior with angles and stiffeners 显示文摘 | Abdulkadir Ctineyt Ayd n Mahmut K 1 Mahyar Maali Merve Sa ro lu | 2015 | Journal of Constructional Steel Research2015，114，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员