نتایج جستجو برای: cycling temperature

تعداد نتایج: 483122  

2014
Meriam Berkulo Robert Lamberts Hein Daanen Timothy Noakes

Purpose The main purpose of this study was to investigate if drinking ad-libitum can counteract potential negative effects of a hypohydrated start during a 40-km time trial in the heat. Methods Twelve well-trained males performed one 40-km cycling time trial while starting euhydrated (EU: no water during the time trial) and two 40-km cycling time trials while starting hypohydrated. During one h...

Journal: :journal of rangeland science 2014
reza kavandi habib gholamali heshmati hamid siroosi

interrupting the processes which control ecosystem resources has dramatic impacts on the rangeland conditions. to protect ecosystems and landscape, it needs to understand the ecosystem processes which regulate the ecosystem resources. as main components of ecosystems, patches and inter-patches play important roles in energy and materials cascade. ecologically, functional parameters such as stab...

2009
Sebastien Dryepondt David R. Clarke

Short cracks, extending to the interdiffusion zone, have been observed in platinum-modified nickel-aluminide diffusion coatings on single-crystal CMSX-4 superalloys after these have been subject to short (10 min) rapid thermal cycles. The cracks were revealed after removing the thermally grown oxide formed during cycling on the coating surfaces. Cracking was observed for coatings subject to the...

2001
Chunsheng Wang John Appleby Frank E. Little

A graphite powder disk sandwiched between two nickel screens was used as a lithium-insertion working electrode. Electrochemical impedance spectroscopy (EIS), galvanostatic intermittent titration (GIT) using pulsed microcurrent, and in-situ intrinsic resistance measurements were used for the evaluation of kinetics and intrinsic (i.e. physical) resistance changes during charge–discharge cycling f...

Journal: :iranian journal of applied animal science 2015
s.p.s. ghuman j. singh m. honparkhe c.s. ahuja d.s. dhami

the present study was conducted on buffaloes that were non-cycling (heifers, n=32; lactating, n=13) or cycling (heifers, n=11; lactating, n=27) and in the buffaloes that conceived (heifers; n=11; lactating, n=23)or failed to conceive (heifers, n=32; lactating, n=17) subsequent to artificial insemination. plasma samples were analyzed for thyroid stimulating hormone, thyroid hormones, glucose, to...

Journal: :Microelectronics Reliability 2011
M. Y. Tsai C. W. Ting C. Y. Huang Yi-Shao Lai

Even though recently published results indicated that residual strains of the epoxy molding compound (EMC) play a key role on the warpage values and shapes of the plastic ball grid array (PBGA) packages, it is still unknown about how these residual strains build up and change during the manufacturing and infrared (IR) solder reflow processes. The purpose of this study is to quantify the residua...

Journal: :Microelectronics Reliability 2015
Sabeur Msolli Joël Alexis Olivier Dalverny Moussa Karama

Keywords: Power electronics High temperature Shear Creep Nano-indentation Hardening a b s t r a c t An experimental investigation of two potential candidate materials for the diamond die attachment is presented in this framework. These efforts are motivated by the need of developing a power electronic packaging for the diamond chip. The performance of the designed packaging relies particularly ...

2017
H. Mutka F. Rullier-Albenque S. Bouffard

2014 Molybdenum blue bronzes exhibit below the Peierls transition time-dependent phenomena. These properties, which are related to the charge density wave instability, are often associated to the presence of defects. In this paper we show that the hysteresis observed during temperature cycling is amplified when defects are introduced by irradiation. We describe two new phenomena observed after ...

2004
James D. Allan Keith N. Bower Hugh Coe Hacene Boudries John T. Jayne Manjula R. Canagaratna Dylan B. Millet Allen H. Goldstein Patricia K. Quinn Rodney J. Weber Douglas R. Worsnop

[1] Two Aerodyne aerosol mass spectrometers (AMSs) were deployed at Trinidad Head on the north Californian coast during the National Oceanographic and Atmospheric Administration Intercontinental Transport and Chemical Transformation 2002 (ITCT 2K2) experiment, to study the physiochemical properties of submicron aerosol particles within the Pacific marine boundary layer. One AMS was modified to ...

2012
A. Larsson F. Oldervoll T. A. T. Seip H. Kristiansen

Anisotropic conductive film (ACF) has been used for flip chip interconnection of a silicon based MEMS finger print sensor to a signal processing ASIC. The assembled sensor device was subjected to a short term high temperature profile with peak temperature 260 C simulating subsequent reflow soldering of the device, and to thermal shock cycling from -40 to +85 C. The reliability of interconnect...

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