نتایج جستجو برای: thermo

تعداد نتایج: 13993  

Journal: :روش های عددی در مهندسی (استقلال) 0
سپیده هاشمی s. hashemi دانشکده مهندسی عمران، دانشگاه تهران سهیل محمدی s. mohammadi [email protected]

the phase transformation phenomenon due to the crystallographic change of shape memory alloys subjected to mechanical or thermal loading is very complicated. regarding the thermo-mechanical coupling effects in shape memory alloys, in case of high  loading rates, heat generation/absorption during the forward/reverse transformation, will lead in temperature-dependent variation and consequently af...

2015
Rizwan Ali Muhammad Rizwan Saleem Pertti Pääkkönen Seppo Honkanen

We investigate the optical and thermo-optical properties of amorphous TiO2–Al2O3 thin-film bilayers fabricated by atomic layer deposition (ALD). Seven samples of TiO2–Al2O3 bilayers are fabricated by growing Al2O3 films of different thicknesses on the surface of TiO2 films of constant thickness (100 nm). Temperature-induced changes in the optical refractive indices of these thin-film bilayers a...

Journal: :journal of computational applied mechanics 0
mohsen hamedi associate professor, school of mechanical engineering, university of tehran, tehran, iran hamid eisazadeh ms graduate, school of mechanical engineering, university of tehran, tehran, iran

resistance spot welding is an important manufacturing process in the automotive industry for assembling bodies. the quality and strength of the welds and, by extension, the body is mainly defined by the quality of the weld nuggets. the most effective parameters in this process are sheet material, geometry of electrodes, electrode force, current intensity, welding time and sheet thickness. the p...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
nabila rouba tahar sadoun naima boutagrabet djamila kerrouche salem zadi

this article reports a study of the thermo-oxidation and biodegradation in the soil of low-density polyethylene/starch films (ldpe/starch) by infrared spectroscopy: films of ldpe/starch blends of different composition (starch content range from 0 to 15% w/w),were prepared and exposed to thermo-oxidation at different temperatures at 80, 90 and 100°c,and buried in the soil of public dump during 3...

Journal: :journal of mining and environment 2016
mohammad rezaee rad shahrokh shahhoseini mehdi janfada hosein ali mirzaee parviz kelidari

low grade diasporic bauxite in the jajarm mine with an a/s (al2o3/sio2) ratio of 2.3 is not usable in the bayer process at jajarm alumina complex. due to the severe interlocking effect between the diaspore and aluminosilicate minerals (chamosite and kaolinite) and iron-containing minerals in a microcrystal matrix, the thermo-chemical treatment, which is independent from micro-mineralogy, was ch...

2016
Christine Campbell Savel Kafwafwa Hilary Brown Graeme Walker Belito Madetsa Miriam Deeny Beatrice Kabota David Morton Reynier Ter Haar Liz Grant Heather A Cubie

The incidence of cervical cancer in Malawi is the highest in the world and projected to increase in the absence of interventions. Although government policy supports screening using visual inspection with acetic acid (VIA), screening provision is limited due to lack of infrastructure, trained personnel, and the cost and availability of gas for cryotherapy. Recently, thermo-coagulation has been ...

2009
Matt Eichenfield Ryan Camacho Jasper Chan Kerry J. Vahala Oskar Painter

These set of notes describe cavity optomechanics in the presence of additional thermo-optic tuning of the cavity resonance. We find that thermo-optic tuning results in correction factors to both the optical spring and optomechanical gain. In addition there is an overall saturation of the optomechanical coupling. These effects can be large for systems with large static thermo-optic tuning and fa...

Journal: :Ophthalmic research 2014
Stefan Mergler Monika Valtink Sumioka Takayoshi Yuka Okada Masayasu Miyajima Shizuya Saika Peter S Reinach

We here provide a brief summary of the characteristics of transient receptor potential channels (TRPs) identified in corneal tissue layers and cells. In general, TRPs are nonselective cation channels which are Ca(2+) permeable. Most TRPs serve as thermosensitive molecular sensors (thermo-TRPs). Based on their functional importance, the possibilities are described for drug-targeting TRP activity...

2013
Ida Pavlichenko Armin T Exner Paolo Lugli Giuseppe Scarpa Bettina V Lotsch

Thermoresponsive TiO2/SiO2 one-dimensional photonic crystals (Bragg stacks) fabricated via sol–gel processing methods represent a promising class of environmentally responsive nanostructures featuring optically encoded temperature and humidity detection. The thermo-optic response of the layer materials is amplified by their inherent porosity owing to adsorption/desorption of ambient humidity in...

2017
Asmaa Said Abeer Salah Gamal Abdel Fattah

Thermo-optical switches are of particular significance in communications networks where increasingly high switching speeds are required. Phase change materials (PCMs), in particular those based on paraffin wax, provide wealth of exciting applications with unusual thermally-induced switching properties, only limited by paraffin's rather low thermal conductivity. In this paper, the use of differe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید