نتایج جستجو برای: saturation temperature variation
تعداد نتایج: 771751 فیلتر نتایج به سال:
Electro deposition of NiFeWS thin films was carried out from Tri Potassium citrate bath at a constant current density (1 A/dm) and controlled pH of 8 by varying bath temperature. Physical properties such as surface morphology, microstructure and magnetic properties such as coercivity, saturation magnetization, magnetic flux density were investigated for electrodeposited NiFeWS soft magnetic thi...
Photochemical quenching, nonphotochemical quenching, and yield of photosystem II were measured on seedlings of full-sibling, open-, and self-pollinated slash pine (Pinus elliottii Engelm. var. elliottii) families. Our results reveal that genetic variation in photochemical quenching and yield of photosystem II exists within this species. The pattern of variation found in these traits is consiste...
open-celled foams are capable to allow the passage of fluids through their structure, because of interconnections between the open cells or bubbles and therefore these structures can be used as a membrane and filter. in thiswork, we have studied the production of polystyrene open-celled microcellular foam by using co2 as blowing agent. to achieve such structures, it is necessary to control the ...
The temperature–dependence of the lattice parameters, unit cell volume and the thermal expansion tensor of petalite (LiAlSi4O10) have been determined from high resolution, time–of–flight powder neutron diffraction data collected at ninety temperatures between 4.2 K and 600 K. At low temperatures, after a short saturation interval, the unit cell volume decreases from 424.114(6) Å3 at 15 K, reach...
We study the low-temperature thermodynamic properties of a number of frustrated quantum antiferromagnets which support localized magnon states in the vicinity of the saturation field. For this purpose we use 1) a mapping of the low-energy degrees of freedom of spin systems onto the hard-core object lattice gases and 2) an exact diagonalization of finite spin systems of up to N = 30 sites. The c...
Ž . Ž . Ž . Ž . Feed intake FI , feed efficiency FE , protein efficiency ratio PER and weight gain WG of Ž . juvenile channel catfish initially weighing 15.0"0.23 g 10–12 cm initial total length were Ž evaluated under three regimes of time-varying water temperature mean daily water temperature . Ž for Stoneville, MS, USA; mean q3; and, mean y38C and three of dissolved oxygen DO; 100, . 70 and 3...
We study the intrinsic transport properties of suspended graphene devices at high fields (≥1 V/μm) and high temperatures (≥1000 K). Across 15 samples, we find peak (average) saturation velocity of 3.6 × 10(7) cm/s (1.7 × 10(7) cm/s) and peak (average) thermal conductivity of 530 W m(-1) K(-1) (310 W m(-1) K(-1)) at 1000 K. The saturation velocity is 2-4 times and the thermal conductivity 10-17 ...
expansive soils show swelling and shrinkage behavior when subjected to cyclic wetting and drying. the variation in water content influence the volume change in this kind of soil. these volume changes can cause ground movement which may result in damage to the buildings and structures. to study the behavior, a number of successive wetting-drying cycles were conducted on a statically compacted ex...
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