نتایج جستجو برای: static temperature

تعداد نتایج: 555922  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2000
abdolsamad zarrin ghalam moghaddam ali akbar hashemi pour rafsanjani

simultaneous thermal analysis (sta) method has been applied to study decomposition reactions of ap under a flowing nitrogen atmosphere and static air. results obtained indicate that a phase transformation occurs prior to the decomposition reaction. decomposition takes place exothermally in two stages, first stage of decomposition could be suppressed by the controlled heating programme. addition...

Journal: :Physical review. D, Particles and fields 1995
Loranz Hiscock Anderson

The expectation value of the stress-energy tensor 〈Tμν〉 of a free conformally invariant scalar field is computed in a general static two-dimensional black hole spacetime when the field is in either a zero temperature vacuum state or a thermal state at a nonzero temperature. It is found that for every static two-dimensional black hole the stress-energy diverges strongly on the event horizon unle...

Journal: :Physical review letters 2013
Sascha Hoinka Marcus Lingham Kristian Fenech Hui Hu Chris J Vale Joaquín E Drut Stefano Gandolfi

We present a high-precision determination of the universal contact parameter in a strongly interacting Fermi gas. In a trapped gas at unitarity, we find the contact to be 3.06±0.08 at a temperature of 0.08 of the Fermi temperature in a harmonic trap. The contact governs the high-momentum (short-range) properties of these systems, and this low-temperature measurement provides a new benchmark for...

Hossein Abedini Mohammad Shahrokhi, Padideh Ghafoor Mohseni

In this paper, optimization and control of a tubular reactor for thermal bulk post-polymerization of styrene have been investigated. By using the reactor mathematical model, static and dynamic simulations are carried out. Based on an objective function including polymer conversion and polydispersity, reactor optimal temperature profile has been obtained. In the absence of model mismatch, de...

Journal: :تحقیقات آب و خاک ایران 0
محدثه امینی کلهرودی دانشجو علی رئیسی استبرق دانشیار گروه مهندسی آبیاری و آبادانی دانشگاه تهران جمال عبدالهی مربی گروه مهندسی آبیاری و آبادانی دانشگاه تهران

in this research the mechanical behavior of an expansive soil (with different pore fluid) was investigated under the constant and variable temperature through experimental tests. the soil samples with different pore fluid (distilled water, nacl and cacl2 with concentration of 250 gr/lit) were prepared by static compaction method. experimental testes were conducted in two modified odometer under...

2013
Tony Tae-Hyoung Kim

Negative bias temperature instability (NBTI) and positive bias temperature instability (PBTI) are critical circuit reliability issues in highly scaled CMOS technologies. In this paper, we analyze the impacts of NBTI and PBTI on SRAM VMIN, and present a design solution for mitigating the impact of NBTI and PBTI on SRAM VMIN. Two different types of SRAM VMIN (SNM-limited VMIN and time-limited VMI...

Journal: :Microelectronics Journal 2013
Esteve Amat E. Amatllé Sergio Gómez Nivard Aymerich Carmen G. Almudéver Francesc Moll Antonio Rubio

This paper studies the device variability influence on 6T-SRAM cells in a function of the regularity level of their layout. Systematic and random variations have been analyzed when these memory circuits are implemented on a 45 nm technology node. The NBTI aging relevance on these cells has been also studied for two layout topologies and SNM has been seen as the parameter that suffers the highes...

Journal: :Physics in medicine and biology 2009
Adam M Rauwerdink Eric W Hansen John B Weaver

The harmonics produced by the nonlinear magnetization of superparamagnetic nanoparticles have been utilized in a number of budding medical devices. Here we expand on an earlier technique for quantitatively measuring nanoparticle temperature in a purely ac field by including the presence of a static field. The ability to quantify nanoparticle temperature by tracking changes in the 4th/2nd harmon...

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