نتایج جستجو برای: wc feal b

تعداد نتایج: 905277  

Journal: :Minerals 2023

In recent years, a large amount of industrial oil and gas resources have been discovered in the Paleogene Wenchang Formation (WC) southern Lufeng sag, confirming that WC are promising prospects for petroleum exploration. However, because complex lithology, multiple sources crude multi-period charging characteristics WC, accumulation process model not clearly understood. Therefore, this study, m...

Journal: :Biochemical Society transactions 1997
S J Heales J E Barker V C Stewart M P Brand I P Hargreaves P Foppa J M Land J B Clark J P Bolaños

Nitric oxide, energy metabolism and neurological disease S. J. R. Heales*t§, J. E. Barkert, V. C. Stewartt, M. P. Brandt, 1. P. HargreavesV, P. Foppa*((, J. M. Land*t, J. B. Clarkt and J. P. BolahosS 'Department of Clinical Biochemistry, National Hospital for Neurology and Neurosurgery, Queen Square, London WC I N 3BG, U.K., fDepartment of Neurochemistry, Institute of Neurology, Queen Square, L...

Journal: :Molecular and cellular biology 2002
Ping Cheng Yuhong Yang Kevin H Gardner Yi Liu

In the frq-wc-based circadian feedback loops of Neurospora, two PAS domain-containing transcription factors, WHITE COLLAR-1 (WC-1) and WC-2, form heterodimeric complexes that activate the transcription of frequency (frq). FRQ serves two roles in these feedback loops: repressing its own transcription by interacting with the WC complex and positively upregulating the levels of WC-1 and WC-2 prote...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1380

ساختار میکروسکوپی و خواص مکانیکی جوش های اصطکاکی ‏‎ti6al4v/(wc-co)‎‏بدون لایه میانی و با استفاده از لایه های میانی نیکل با ضخامت های مختلف مورد بررسی قرار گرفته است. ریز ساختار منطقه مجاور جوش در نمونه تیتانیمی در کلیه حالتها متشکل از فریت سوزنی و هم محور همراه با فاز بتا بوده و در کلیه نمونه ها نفوذ متقابل عناصر در یکدیگر رخ داده است. استحکام شکست جوش های اصطکاکی ‏‎ti6al4v/(wc-co) با افزایش در...

1996
E Thomas Richards Barry Richards

The basic algorithm is derived from the weak-commitment algorithm (WC) of Yokoo [17], which has been shown to outperform breakout and min-conflict backtracking on certain classes of problems. Weakcommitment search is that part of WC which results from removing the learning mechanism; this will be called WC-NL. WC-NL is coupled with learning-by-merging to form the new algorithm WC-NG. Experiment...

Journal: :Peptides 2011
Alline Maria Beleigoli Maria Fernanda Lima-Costa Maria de Fátima Haueisen Diniz Antônio Luiz Ribeiro

B-type natriuretic peptide (BNP) is a diagnostic and prognostic tool in heart failure and also in Chagas disease, which is caused by the protozoan Trypanosoma cruzi and has cardiomyopathy as a main feature. BNP lipolytic actions and T. cruzi infection in the adipose tissue have been recently described. We aim to investigate the relationship between BNP and anthropometric measures and whether it...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
P Cheng Y Yang Y Liu

Interlocked feedback loops may represent a common feature among the regulatory systems controlling circadian rhythms. The Neurospora circadian feedback loops involve white collar-1 (wc-1), wc-2, and frequency (frq) genes. We show that WC-1 and WC-2 proteins activate the transcription of frq gene, whereas FRQ protein plays dual roles: repressing its own transcription, probably by interacting wit...

In the present study, FeAl/Al2O3 nanocomposite coating was produced on the carbon steel plate using mechanical alloying (MA) technique via a mechanochemical reaction. Stoichiometric ratios of Fe, Al and Fe2O3 as well as a substrate were mixed and milled up to 22h in a vibrating high energy mill with a 4 mm ball. Samples prepared after 18h of MA were subjected to annealing at 773 K for 1-3 h. X-...

2007
J. B. Spicer

Elastic field coupling to solute concentration is known to produce dislocationdriven impurity segregation. Recent reports detailing the distribution of boron around edge dislocations in B2-ordered FeAl indicate that nonlinear coupling of species concentration and elastic strain to the chemical potential must be considered to assess the magnitude of boron segregation around edge dislocations. On...

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