نتایج جستجو برای: thermal resistance measurement

تعداد نتایج: 1003814  

2016
Shi Qiang Liu Rong Zhu

Errors compensation of micromachined-inertial-measurement-units (MIMU) is essential in practical applications. This paper presents a new compensation method using a neural-network-based identification for MIMU, which capably solves the universal problems of cross-coupling, misalignment, eccentricity, and other deterministic errors existing in a three-dimensional integrated system. Using a neura...

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

2014
Robert Setekera Luuk Tiemeijer Ramses van der Toorn

In this paper an extensive verification of the extraction method (published earlier) that consistently accounts for self-heating and Early effect to accurately extract both base and thermal resistance of bipolar junction transistors is presented. The method verification is demonstrated on advanced RF SiGe HBTs were the extracted results for the thermal resistance are compared with those from an...

Journal: :Journal of bacteriology 1957
M AMAHA Z J ORDAL

In a previous paper, El-Bisi and Ordal (1956a) reported that increased levels of phosphate, in the growth and sporulation medium, significantly reduced the thermal resistance of spores of Bacillus coagulans var. thermoacidurans. It was postulated that the phosphate anion lessened the availability of divalent cations to the sporulating cells and that spores so produced possessed a reduced therma...

2017
A. Sola P. Bougiatioti M. Kuepferling D. Meier G. Reiss M. Pasquale T. Kuschel V. Basso

The determination of the longitudinal spin Seebeck effect (LSSE) coefficient is currently plagued by a large uncertainty due to the poor reproducibility of the experimental conditions used in its measurement. In this work we present a detailed analysis of two different methods used for the determination of the LSSE coefficient. We have performed LSSE experiments in different laboratories, by us...

2012
A. Razani T. Fraser C. Dodson

The cooling capacity, efficiency and cooling flux for a single stage thermoelectric cooler, as part of a multistage cooler, is analyzed in this study. The Lagrange Multiplier method is used to develop nonlinear algebraic equations for the optimum condition for different objective functions. The analysis includes the effect of heat leak, thermal boundary resistances with thermal reservoirs and t...

Journal: :international journal of nano dimension 0
a. l. subramaniyan department of physics, thiagarajar college of engineering, madurai, tamilnadu, india. g. kumaraguruparan department of mechanical engineering,thiagarajar college of engineering, madurai, tamilnadu, india. r. venkatesan department of mechanical engineering,thiagarajar college of engineering, madurai, tamilnadu, india. a. vignesh department of mechanical engineering,thiagarajar college of engineering, madurai, tamilnadu, india.

nanofluids are gaining much importance over the past decade due to their enhanced thermal conductivity, specific heat, cooling capacity, electrical conductivities. novel properties of nanofluids are yet to be explored to the highest potential applications. one of the prominent applications of nanofluids is in thermal conduction. the presence of nanoparticle in a fluid can enhance the thermal co...

Journal: :Journal of Applied Physics 2023

Solid heterostructures composed of substrates and epitaxial films are extensively used in advanced technologies, their thermophysical properties fundamentally determine the performance, efficiency, reliability, lifetime corresponding devices. However, an experimental method that is truly appropriate for property measurement solid still lacking. To this end, a three-sensor 3{\omega}-2{\omega} pr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مکانیک 1387

سیالات پایه، مانند آب، ضرایب رسانایی ضعیفی داشته و این یکی از مشکلات سیالات به عنوان سیال عامل می باشد. نانوسیالات، مخلوطهای رقیق نانو ذرات در آب، بر اساس نتایج آزمایشات ضرایب رسانایی گرمایی بسیار بالاتری در مقایسه با سیالات معمولی دارند و می توانند جایگزین مناسبی برای کارکردهای گرمایی باشند. افزودن نانو ذرات از جهات بسیاری در خواص سیال پایه تغییراتی به وجود می آورد. این تفاوت ها با تیوری های م...

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