نتایج جستجو برای: contact parameters

تعداد نتایج: 730890  

Journal: :Solar Energy Materials and Solar Cells 2021

The use of magnetron sputtering for deposition the metal electrode in perovskite solar cells has been limited because damage to organic hole transport layer by high kinetic energy particles during process. In this paper, a systematic investigation into effect power, argon flow rate, duration, and pressure on performance was conducted. results work show that power conversion efficiency 18.35% ob...

Journal: :international journal of preventive medicine 0
hasan razmjoo elham abdi sayna atashkadi mohamad reza akhlaghi ali reza peyman mojtaba akbari

background: silicon hydrogel bandage contact lenses are used to enhance epithelial healing, control surface-generated pain, and prevent epithelial erosions after refractive surgery. considering the importance of faster reepithelialization in preventing complications of photorefractive keratectomy (prk) and the fact that the features and specifications of these commercially-available lenses are ...

H. Khaksar M. H. Korayem M. Taheri

The effect of geometry and material of the Micro/Nano particle on contact mechanic for manipulation was studied in this work based on atomic force microscopy. Hertz contact model simulation for EpH biological micro particle with spherical, cylindrical, and circular crowned roller shape was used to investigate the effect of geometry on contact simulation process in manipulation. Then, to val...

In this study; utilizing the elastic matrix ball has higher processing efficiency and better superficial quality than traditionalgrinding. The diversity of elastic abrasive tool characteristics contact with bend surface results in irregular wear abrasion,and abrasive tool machining status gets complicated. There is no theoretical interpretation of parameters affecting the grinding accuracy. Bec...

In this study; utilizing the elastic matrix ball has higher processing efficiency and better superficial quality than traditionalgrinding. The diversity of elastic abrasive tool characteristics contact with bend surface results in irregular wear abrasion,and abrasive tool machining status gets complicated. There is no theoretical interpretation of parameters affecting the grinding accuracy. Bec...

Journal: :international journal of nanoscience and nanotechnology 2015
m. h. korayem h. khaksar m. taheri

the effect of geometry and material of the micro/nano particle on contact mechanic for manipulation was studied in this work based on atomic force microscopy. hertz contact model simulation for eph biological micro particle with spherical, cylindrical, and circular crowned roller shape was used to investigate the effect of geometry on contact simulation process in manipulation. then, to validat...

Journal: :geopersia 2015
mohammad hossein ghobadi sajeddin mousavi mojtaba heidari behrouz rafie

this study investigates the correlations among the tensile strength, mineral composition, and textural features of twenty-ninesandstones from kouzestan province. the regression analyses as well as artificial neural network (ann) are also applied to evaluatethe correlations. the results of simple regression analyses show no correlation between mineralogical features and tensile strength.however,...

Journal: :journal of mining and environment 2012
a igder ali akbar rahmani ali fazlavi mohammad hossein ahmadi mohammad hossein ahmadi azqhandi

the main objective of the present study is to investigate the feasibility of using carboxymethyl chitosan magnetic nanoparticles (ccmn) for the adsorption of cd2+. the study also reports important parameters, which affect the adsorption process, i.e., ph, adsorbent dose, contact time and concentration of cd2+, using box-behnken designs. firstly, functional carboxymethyl chitosan magnetic nanopa...

Journal: :Journal of biomechanical engineering 2002
Arthur Huang M L Hull Stephen M Howell Tammy Haut Donahue

To guide the development of improved procedures for selecting meniscal allografts, the objective of this study was to identify which cross-sectional parameters of a lateral meniscal allograft predict the contact pressure of the articular surface of the tibia. To meet the objective, the contact pressure of the articular surface of the tibia was measured with a lateral meniscal autograft and a la...

Mazidi, , Mousapour, , Shojaeefard, ,

Thermal Contact Conductance (TCC) between an exhaust valve and its seat is one of the important parameters to be estimated in an internal combustion engine. An experimental study presented here to acquire temperature in some interior points to be used as inputs to an inverse analysis. An actual exhaust valve and its seat are utilized in a designed and constructed setup. Conjugate Gradient Metho...

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