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18篇 您的检索式:作者名="Kiumars"
    题名 作者 年代 出处 被引量
1Magnesium perchlorate as a new and highly efficient catalyst for the synthesis of 2,3-dihydro-1,5-benzo thiazepines显示文摘Kiumars B Mohammad Mehdi K Iman K 2007Synthesis2007,,4:1
2First successful replantation of face and scalp with single artery repair:model for face and scalp transplantation显示文摘Bradon JW Robert HK Kiumars M 2003Ann Plast Surg2003,50,5:1
3Drought vulnerability assessment: The case of wheat farmers in Western Iran显示文摘Kiumars Zarafshani Lida Sharafi Hossein Azadi Gholamhossein Hosseininia Philippe De Maeyer Frank Witlox 2012Global and Planetary Change2012,,:1
4Microcellular Foaming of PVC/NBR Thermoplastic Elastomer显示文摘Kiumars Shakarami Ali Doniavi Taher Azdast KiumarsMohammadi Aghdam 2013Materials and Manufacturing Processes2013,,8:1
5root canal cleaning efficacy of rotary and hand files instrumentation in primary molars显示文摘Kiumars Nazari Moghaddam Majid Mehran Hamideh Farajion Zadeh 2009IEJ2009,4,2:1
6Droughtvulnerability assessment : The case of wheat farmers in WesternIran显示文摘Kiumars Zarafshani Lida Sharafi Hossein Azadi GholamhosseinHosseininia Philippe De Maeyer Frank Witlox 2012Global and Planetary Change2012,9899,:1
7Highly selective catalytic Friedel-Craftssulfonylation of aromatic compounds using a FeCl3-based ionic liquid 显示文摘Bahrami Kiumars Khodei Mohammad Mehdi Shahba-zi Fomeida 2008Tetrahedron Letters2008,49,24:1
8Efficient and convenient deproteetion of thiocarbonyl to carbonyl com- pounds using 3-earboxypyridinium and 2,2'-bipyr- idinium chlorochromates in solution, dry media, and under microwave irradiation显示文摘Iraj Mohammadpoor-Baltork Hamid Reza Memar- ian Kiumars Bahrami 2004Monatshefte fuer Chemic2004,135,4:1
9Development of a Path-following and a Seed Control Driver Model for an Electric Ve- hicle 显示文摘Kiumars Jalali Steve Lambert Jon Mephee 2012SAE2012,,:1
10Drought vulnerability assessment:The case of wheat farmers in Western lran显示文摘Kiumars Z Lida S Hossein A 2012Global and Planetary Change2012,9899,:1
11Aortic calcification and the risk of osteoporosis and fractures 显示文摘Schulz E Kiumars A Liu X 2004J Clin Endocrinol Metab2004,89,9:1
12Safety threshold of intravitreal clonidine in rabbit's eyes显示文摘AIM: To determine the safe dose of intravitreal clonidine(IVC), a potential drug for neuroprotection and angiogenesis inhibition in rabbits. METHODS: A total of 28 rabbits were divided into four groups. Three groups received IVC with concentrations of 15(Group A), 25(Group B), and 50(Group C) g/0.1 m L and the control group(Group D) received 0.1 m L balanced salt solution(BSS). To investigate IVC safety, electroretinography(ERG) was performed at baseline, then at 1, 4 and 8 wk after injection. After last ERG, all rabbits were euthanized, their eyes were enucleated and subjected to routine histopathological evaluation, immunohistochemistry for glial fibrillary acidic protein(GFAP) and terminal deoxynucleotidyl transferase d UTP nick end labeling(TUNEL) test.RESULTS: Based on ERG, histopathology, GFAP and TUNEL assay findings, 15 g IVC was determined as the safe dose in rabbit eyes. While, the results of routine histopathology and TUNEL assay were unremarkable in all groups, toxic effects attributed to 25 and 50 g IVC were demonstrated by ERG and GFAP tests. CONCLUSION: Totally 15 g clonidine is determined as the safe dose for intravitreal injection in rabbits. Contribution of IVC in neuroprotection and inhibition of angiogenesis deserve more studies.Homayoun Nikkhah Kiumars Heidari Garfami Mozhgan Rezaei Kanavi Ebrahim Mohammad Nashtaei Saeed Karimi Masoud Soheilian 2018International Journal of Ophthalmology(English edition)2018,11,1:0
13Production and Properties Analysis of Honey Nanofibers Enriched with Antibacterial Herbal Extracts for Repair and Regeneration of Skin and Bone Tissues显示文摘Among the commonly used nanofibers production methods,electrospinning has many advantages such as ease of production,possibility of industrialization,nanofibers dimensional control and repeatability.Many parameters affect the characteristics of the nanofibers produced by this method,the most important of these parameters being the applied voltage,the concentration of polymer solution,the sample injection rate,the distance between the needle and the collector,and environmental factors too.Pharmaceutical properties of nanofibers are determined by their composition and structure at the nanoscale.Therefore,the ultimate goal of identify nanostructure and nanofiber morphology must be searching for an atom to an atom on a surface and under the reaction conditions.In this paper,honey nanofibers enriched with antibacterial herbal extracts such as the garlic,mint and edible mushroom are produced by method of electrospinning,by reviewing the effective conditions in preparing them,to achieve nanostructures and optimize conditions.The related nanofibers have ability to repair and regenerate damaged skin and bone tissues as an effective drug,which is especially important for biocompatibility and economics.In this research,nanofibers have been investigated by examining cases affecting structure and performance.The hydroalcoholic extracts and nanofibers are identified by device methods such as GC-Mass(gas chromatography-mass spectrometry),FT-IR(Fourier transform infrared spectroscopy),SEM(scanning electron microscopy)and XRD(X-ray diffraction spectroscopy).Esmaeil Shahbazi Kiumars Bahrami 2019Journal of Pharmacy and Pharmacology2019,7,2:0
14Spherical Tropical Geometry:a Survey of Recent Developments显示文摘这是球形的热带几何学上的一些最近的结果的调查。Kiumars KAVEH Christopher MANON 2018Acta Mathematica Sinica,English Series2018,34,3:0
15Numerical and experimental investigation to design a novel morphing airfoil for performance optimization显示文摘Optimizing flying objects’wing performance has attracted a significant attention in the last few decades.In this article,some of the main mechanisms for changing the geometry of the wing were investigated and a new mechanism is proposed to improve the aerodynamic performance of the airplane wing.The designs have been simulated and analyzed from both aerodynamic and control points of view.In aerodynamic simulations using CFD methods,two airfoils of NACA series 6 with specifications 65-212 and 65-2012 were modeled.The results indicated that both airfoils used have a better performance compared to others in a certain range of the angle of attack.Subsequently,a new mechanism is proposed to change the wing geometry to optimize its structure.In the proposed mechanism,the structures of airfoils and wings consist of two fixed and moving parts,which can change their geometry with the help of a control circuit.The fixed part has a grooved track,and as the moving part moves in the direction of the grooves,the curvature of the upper and lower parts of the wing changes.The design control circuit includes an angle sensor,a micro controller,and a servomotor.The CFD results are entered into the micro controller as code.At any moment,the micro controller receives the angle data from the angle sensor and by comparing them with the CFD data,and issuing a command to the servomotor,it situates the wing curvature in the optimal state at all times.The built mechanism was tested at an attack angle of 0°and 25°.The results showed that the different parts of the mechanism work with very high precision and put the geometric shape of the wing in an optimal state in a completely intelligent way.It should be noted that the average error in test for t/c and Xt/c was 15.3% and 9%,respectively.Kiumars Khani Aminjan Maryam Ghodrat Milad Heidari Pooyan Rahmanivahid Shayan Naghdi Khanachah Mira Chitt Juan Pablo Escobedo-Diaz 2023Propulsion and Power Research2023,12,1:0
16A novel approach towards dethioacetalization reactions with H_2O_2-SOC1_2 system显示文摘A simple and efficient protocol for the deprotection of dithioacetal,1,3-dithianes and 1,3-dithiolanes has been developed using H2O2-SOC12 reagent system.In addition to the absence of overoxidation products for oxidation-prone substrates,high chemoselectivity, the low cost and availability of the reagents,simplicity of the method,short reaction times,and excellent yields can also be considered as strong points for this method.Kiumars Bahrami Mohammad Mehdi Khodaei Maryam Tajik Vida Shakibaian 2012Chinese Chemical Letters2012,23,1:0
17凸多面体,代数几何学和组合学显示文摘在最近的几十年,凸几何学方法被证明在代数几何学中是非常有用的,尤其是在理解代数簇的离散不变量上.研究代数簇的一个方法是把组合对象的一个对应的族赋予簇的一个族,这些对象编码了簇的几何信息.由此引出的这些组合对象经常是凸多面体,而凸几何学一直是这一策略的根本工具.Laura Escobar Kiumars Kaveh 赵振江(译) 燕敦验(校) 2020数学译林2020,39,4:0
18Reverse Direction Micellar Electrokinetic Capillary Chromatography, Hydrostatic Flow Injection and Diffusional Injection Analysis: An Experimental Work显示文摘Kiumars Ghowsi Hosein Ghowsi 2014Journal of Chemistry and Chemical Engineering2014,8,6:0
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