نتایج جستجو برای: نهشته cu au دالی شمالی
تعداد نتایج: 146961 فیلتر نتایج به سال:
We present the first measurements of the pseudorapidity distribution of primary charged particles in Cu+Cu collisions as a function of collision centrality and energy, sqrt[s_{NN}]=22.4, 62.4, and 200 GeV, over a wide range of pseudorapidity, using the PHOBOS detector. A comparison of Cu+Cu and Au+Au results shows that the total number of produced charged particles and the rough shape (height a...
The structural and magnetic properties of Cu//Co and Au//Co multilayers are studied by X-ray absorption spectroscopy. The results of EXAFS measurements show that thin cobalt layers in Cu /Co and Au /Co multilayers have a different structure imposed by the mismatch with Cu (2%) and Au (14%). The most interesting results for Cu/Co multilayers are provided by magnetic circular X-ray dichroism (MCX...
کانسار میوه رود در ۵۰ کیلومتری شمال تبریز و ۶۵ کیلومتری باختر اهر، در شمال باختر ایران به مختصات جغرافیایی˝۳۵ ΄١۴ ˚۴۶ تا ˝٢۰ ΄١٢ ˚۴۶ طول خاوری و ˝۵٢ ΄۳۴ ˚۳۸ تا˝٢ ΄۳۳ ˚۳۸ عرض شمالی واقع است. قدیمی‌ترین سنگ‌ها شامل تناوب ستبری از ماسه‌سنگ، شیل، سیلتستون، مارن و آهک مارنی به سن کرتاسه پسین- پالئوسن است که یک توده پورفیری و دایک‌هایی با ترکیب گرانودیوریت تا دیاباز به سن احتمالی اولیگوس...
We present baseline calculations of initial-state shadowing and finalstate absorption effects on J/ψ production in nucleus-nucleus collisions at the Relativistic Heavy Ion Collider. We show predictions for Au+Au and Cu+Cu collisions at √ SNN = 200 GeV and Cu+Cu collisions at √ SNN = 62 GeV as a function of the rapidity, y, and the number of binary nucleon-nucleon collisions, Ncoll.
Major aim of this study is to define the copper and gold anomalies using the combination of the Concentration-Number (C-N) fractal and the stepwise factor analysis, based on stream sediment samples in Lahrud 1:100,000 sheet, NW Iran. The case study is situated in Alborz-Azerbaijan structural zone. Elements related to Au and Cu hydrothermally mineralization were selected for this study, accordin...
The PHENIX experiment has established jet quenching at a center-of-mass energy of 200 GeV in Au+Au collisions. Recent measurements of Cu+Cu collisions at the same center-of-mass energy support a parton energy loss scenario. Furthermore, the onset of jet quenching was studied in Cu+Cu collisions for three center-of-mass energies 22.4, 62.4 and 200 GeV.
Atomic-level understanding of the structural transformations of multimetallic nanoparticles (NPs) triggered by external stimuli is of vital importance to the enhancement of our capabilities to precisely fine-tailor the key structural parameters and thereby to fine-tune the catalytic properties of the NPs. In this work, I firstly show that Au-Cu bimetallic NPs demonstrate stoichiometry-dependent...
BACKGROUND The natural history of progression from acute urticaria (AU) to chronic urticaria (CU) remains poorly understood. This study aimed to investigate the potential triggers of AU attacks and factors associated with their duration, as well as the factors which may be predictive of progression to CU. METHODS The study included 281 AU patients (AU group). Data were obtained from 207 AU pa...
The influence of Cu, Ag, and Au additives on the L10 ordering, texture, and grain size of FePt thin films has been examined. Lattice parameter data indicated that Au and Ag additives tended to segregate from FePt, but Cu alloyed with FePt. FePt films with Au or Ag additive showed 1–2 kOe higher coercivity values compared to a pure FePt film after annealing at 450 °C and above for 10 min. The ad...
در این پروژه خواص الکترونیکی و اپتیکی ترکیب cugase2 و ترکیب هایی با جانشینی ag و au به جای cu در ترکیب نامبرده مورد بررسی قرار گرفته است. محاسبات با تقریب شیب تعمیم یافته(gga) در چارچوب نظریه ی تابعی چگالی (dft)انجام شده است. محاسبات الکترونیکی نشان می دهند که ترکیب هایcugase2، aggase2و augase2 دارای گاف های نواری غیرمستقیم با مقادیر به ترتیب 23/1، 4/1 و 87/0 الکترون ولت هستند که این مقادیر ب...
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