The asymmetric unit of the title compound, (C13H23N2)2[Ni(C4N2S2)2], consists of a 1-hexyl-N,N-di-methyl-pyridinium cation and one half of a [Ni(mnt)2](2-) dianion (mnt(2-) = maleo-nitrile-dithiol-ate) in which the Ni(2+) cation lies on a crystallographic inversion centre. The square-planar coordination about Ni(2+) comprises four S atoms from two bidentate chelate mnt(2-) ligands [Ni-S = 2.179...

A study was carried out to characterize Ni-Co-PVC and Ni-Cu-PVC composite materials prepared by mechanical alloying technique (MAT) using SEM, EDS and electrochemical test. Composite materials were prepared by mixing together 95% of metal powder (Ni+Co or Ni+Cu) with 5% PVC. PVC was used as a binder and tetrahydrofuran (THF) was used as a solvent in composite material preparation. Based on the ...

In the title compound, [Ni(NCS)2(C5H5N)2] n , the Ni(2+) cation is coordinated by four thio-cyanate anions (μ-1,3) and two pyridine ligands within a slightly distorted octa-hedral configuration. The Ni-N bond lengths to the pyridine rings are 2.1189 (17) and 2.1241 (17) Å, whereas those to the thiocyanate anions are 2.0299 (18) and 2.0359 Å. The Ni-S bond lengths are 2.5357 (6) and 2.5568 (6) Å...

روش‌های مختلفی برای زمان­‌سنجی امواج مشابه و با تحریک یکسان ارایه شده است که توجه به شرایط موج می‌­توان بهترین گزینه را انتخاب کرد. لذا هدف ما یافتن روش زمان‌سنجی جهت خروجی از حسگر UFSD زیرا می­‌خواستیم این حسگرها آشکارسازی پروتون‌ها در سیستم پروتون درمانی برای­ درمان ­تومورهای سرطانی استفاده کنیم. راستا مقایسه مختلف مثل تفکیک‌کننده کسر ثابت (CFD)، همبستگی متقابل(CC) زمان بیش آستانه (TOT)با داد...

We study Ni 80 Fe 20-based permalloys with the relativistic spin-polarized Korringa-Kohn-Rostoker electronic structure method. Treating the compositional disorder with the coherent potential approximation, we investigate how the magnetocrys-talline anisotropy, K, and magnetostriction, λ, of Ni-rich Ni-Fe alloys vary with the addition of small amounts of non-magnetic transition metals, Cu and Mo...

Chromium (Cr) and nickel (Ni) concentrations were measured in lung tissue from 110 random necropsies by means of atomic absorption spectrometry. The subjects originated from the Ruhr district (Bochum (71 cases) and Dortmund (16 cases) areas), which has been defined as a particular pollution area with locally high Cr and Ni emissions, and from Münster and vicinity (23 cases). The Cr and Ni conce...

Mesoporous alumina catalysts that incorporate nickel (Ni-Alumina) with different Ni/Al molar ratios of 1:2, 1:5 and 1:10 were synthesized by a one-step sol–gel method using lauric acid as a template. The prepared Ni-Alumina catalysts showed a relatively high surface area with a narrow pore size distribution after calcination at 700 ◦C; these effects were independent of the Ni/Al molar ratio. Al...

BACKGROUND This is the first randomized, double-blind, placebo-controlled trial (EUDRACT No. 2009-013923-43) evaluating nickel oral hyposensitizing treatment (NiOHT) in patients with "systemic nickel allergy syndrome" (SNAS), characterized by Ni-allergic contact dermatitis and systemic reactions after eating Ni-rich food. METHODS Adults with positive Ni-patch test, who reported symptoms sugge...

ابتلای یکی از اعضای خانواده به بیماری مزمن، بر روابط، نقش‌ها، سلسله مراتب و به‌طور کلی سیستم تأثیر می‌گذارد را برای مدیریت سازگاری با شرایط جدید، چالش‌هایی مواجه می‌کند. هدف این مرور ادبیات پژوهشی، شناسایی مسائلی است که در مزمن اعضا، آن رو‌به‌روست. بدین منظور، بررسی نظام‌مند مقالات چاپ‌شده زبان فارسی یا انگلیسی مجلات داخلی خارجی سال 201۴ (دی ۱۳۹۲) تاکنون، پایگاه‌های SID، Magiran، Google Scholar...

The interaction of formic acid with Ni( 1 lo), Ni( 1 lO)-carbide, Ni( 1 IO)-graphite, and Ni( 1 lO)sulfide surfaces was examined by molecular beam relaxation spectrometry. The apparent firstorder rate constants for the desorption of formic acid (T, < 300°K) were remarkably similar on all of the surfaces studied, suggesting that the low-temperature formic acid adsorption/desorption interactions ...