نتایج جستجو برای: thermal exchange te
تعداد نتایج: 427784 فیلتر نتایج به سال:
We present a dynamic study of the normal state thermal nucleation of a 2 03BC-radius In granule, initially in an equilibrium metastable state in the presence of a magnetic field. The driving mechanism is the neutrino-indium collision which is assumed to provide a local energy deposition. An analytic expression for the quasiparticle and phonon temperatures Te ( r, t ) and Tp ( r, t ) characteriz...
Thermal efficiency of borehole heat exchangers (BHE) is of crucial importance for the design and optimization of ground source heat pump (GSHP) system. This paper investigates thermal efficiency of a BHE with three drillhole diameters: 121 mm, 165 mm and 180 mm. The BHE was installed in a GSHP system of an office building located in Nuremberg, Germany. Thermal properties and hydraulic propertie...
Understanding the underlying mechanisms that suppress thermal conduction in solids is of paramount importance for the targeted design of materials for thermal management and thermoelectric energy conversion applications. Bismuth copper oxychalcogenides, BiOCuQ (Q = Se, Te), are highly crystalline thermoelectric materials with an unusually low lattice thermal conductivity of ∼0.5 Wm(-1) K(-1), a...
BACKGROUND The reproducibility of cardiopulmonary exercise testing (CPET) has not been established in young cystic fibrosis (CF) patients using a valid protocol. METHODS Thirteen 7-18 year olds completed three CPETs, separated by 48 h and 4-6 weeks. CPET involved a ramp-incremental cycling test with supramaximal verification. RESULTS Maximal oxygen uptake was repeatedly determined with no l...
Traffic engineering (TE) has been widely investigated in recent years. Though, the scope of these works were predominantly limited to intra-domain TE and single administrative domains. Not even the long term TE with monitoring and analysis of traffic exchange points has been adequately solved, not to mention the short term, real-time performance related inter-domain TE tasks. This is in spite o...
Thermal adaptation of gross primary production and ecosystem respiration has been well documented over broad thermal gradients. However, no study has examined Correspondence to: W. Yuan ([email protected]) their interaction as a function of temperature, i.e. the thermal responses of net ecosystem exchange of carbon (NEE). In this study, we constructed temperature response curves of NEE ag...
The effects of weather are manifested in an organism-environment relationship through the mediu m of thermal or h eat exchange_ Meteorological param eters alone may be quite meaningless when used in interpreting animal responses because weather instruments do not respond to the thermal regime of the atmosphere in the same way that a living organism does _ Further, weather instruments are often ...
In the present work, we investigate the quantum thermal entanglement in molecular magnets composed of dimers of spin S, using an Entanglement Witness built from measurements of magnetic susceptibility. An entanglement temperature, Te, is then obtained for some values of spin S. From this, it is shown that Te is proportional to the intradimer exchange interaction J and that entanglement appears ...
Thermal tolerance has been hypothesized to result from a mismatch between oxygen supply and demand. However, the generality of this hypothesis has been challenged by studies on various animal groups, including air-breathing adult insects. Recently, comparisons across taxa have suggested that differences in gas exchange mechanism could reconcile the discrepancies found in previous studies. Here ...
Temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery mode resonator. As the resonator's TE and TM modes frequencies have different temperature coefficients, their differential shift provides a sensitive measurement of the temperature variation, which is used ...
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