مرور بر اساس عنوان
در حال نمایش موارد 85156 - 85175 از 605404
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N uptake and yield of wheat as influenced by integrated use of organic and mineral nitrogen
(Gorgan University of Agricultural Sciences, 2009-07-01)The effect of integrated use of mineral and organic N sources (farmyard manure, poultry manure, and Filter Cake) on yield and N uptake of wheat were assessed in biennial field experiment carried out on silty clay loam soil ...
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N فرمیلاسیون آمین‌های سازگار با محیط با استفاده از نانو اکسید سریوم به عنوان کاتالیزور قابل بازیافت تحت شرایط تابش ماورای صوت و فاقد حلال در دمای اتاق
(دانشگاه آزاد اسلامی واحد اهر, 2013-05-22)یک روش سازگاری با محیط برای سنتز آمیدها توسط N فرمیلاسیون از آمین با فرمیک اسید در حضور نانو اکسید سریم به عنوان یک کاتالیزور موثر و قابل بازیافت تحت تابش UVاست. واکنش سیستم قابل ملاحظه بوده و همچنین بهخاطر روش ساده ...
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$n$-Absorbing $I$-ideals
(Department of Pure Mathematics, Ferdowsi University of Mashhad (in cooperation with the Center of Excellence in Analysis on Algebraic Structures and Tusi Mathematical Research Group), 2020-07-01)Let $R$ be a commutative ring with identity, let $ I $ be a proper ideal of $ R $, and let $ n ge 1 $ be a positive integer. In this paper, we introduce a class of ideals that is closely related to the class of $I$-prime ...
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$n$-Array Jacobson graphs
(Springer and the Iranian Mathematical Society (IMS), 2017-12-01)We generalize the notion of Jacobson graphs into $n$-array columns called $n$-array Jacobson graphs and determine their connectivities and diameters. Also, we will study forbidden structures of these graphs and determine ...
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The $n$-ary adding machine and solvable groups
(University of Isfahan, 2013-12-01)We describe under various conditions abelian subgroups of the automorphism group $mathrm{Aut}(T_{n})$ of the regular $n$-ary tree $T_{n}$, which are normalized by the $n$-ary adding machine $tau =(e, dots, e,tau ...
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$n$-cocoherent rings, $n$-cosemihereditary rings and $n$-V-rings
(Springer and the Iranian Mathematical Society (IMS), 2014-08-01)Let $R$ be a ring, and let $n, d$ be non-negative integers. A right $R$-module $M$ is called $(n, d)$-projective if $Ext^{d+1}_R(M, A)=0$ for every $n$-copresented right $R$-module $A$. $R$ is called right ...
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$n$-Dual Spaces Associated to a Normed Space
(Department of Pure Mathematics, Ferdowsi University of Mashhad (in cooperation with the Center of Excellence in Analysis on Algebraic Structures and Tusi Mathematical Research Group), 2015-08-01)For a real normed space $X$, we study the $n$-dual space of $left( X,leftVert cdot rightVert right) $ and show that the space is a Banach space. Meanwhile, for a real normed space $X$ of dimension $dgeq n$ which satisfies ...
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$n$-factorization Property of Bilinear Mappings
(University of Maragheh, 2020-07-01)In this paper, we define a new concept of factorization for a bounded bilinear mapping $f:Xtimes Yto Z$, depended on a natural number $n$ and a cardinal number $kappa$; which is called $n$-factorization property of level ...
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$n$-Jordan homomorphisms on C-algebras
(Central Tehran Branch, Islamic Azad University, 2012-03-01)Let $nin mathbb{N}$. An additive map $h:Ato B$ between algebras $A$ and $B$ is called $n$-Jordan homomorphism if $h(a^n)=(h(a))^n$ for all $ain A$. We show that every $n$-Jordan homomorphism between commutative Banach ...
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N, S-Codoped TiO2/Fe2O3 Heterostructure Assemblies for Electrochemical Degradation of Crystal Violet Dye
(Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2020-04-01)In contemporary research, “Heterostructure" assemblies play an important role in energy conversion systems, wherein the composite assemblies facilitate faster charge carrier transport across the material interfaces. ...
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(n,1,1,α)-Center Problem
(Tehran, Amirkabir University of Technology, 2014-06-01)Given a set of points in the plane and a constant ,-center problem is to find two closed disks which each covers the whole , the diameter of the bigger one is minimized, and the distance of the two centers is at least . ...
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N,N,N',N'-Tetramethyl-N,N'-bis(sulfo)ethane-1,2- Diaminium Mesylate as a Highly Effective and Dual-functional Catalyst for the Synthesis of 1-Thioamidoalkyl-2-naphthols
(Sami Publishing Company, 2020-07-01)N,N,N',N'-tetramethyl-N,N'-bis(sulfo)ethane-1,2-diaminium mesylate ([TMBSED][Oms]2) is used as a highly efficient and dual-functional catalyst for ...
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N,N,N',N'-tetramethylethylene-diaminium-N,N'-disulfonic acid chloride as a highly effective catalyst for the synthesis of 4H-pyrano[2, 3-c]pyrazoles, α-carbamatoalkyl-β-naphthols and α-amidoalkyl-β-naphthols
(Sami Publishing Company, 2020-04-01)In this work, N,N,N',N'-tetramethylethylene-diaminium-N,N'-disulfonic acid chloride {[TMEDSA][Cl]2} has been utilized as a highly effective catalyst in order ...
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N,N,N,N-Tetramethylguanidinium acetate as an efficient and reusable ionic liquid catalyst for the one-pot synthesis of dihydropyrrol-2-ones
(Ilam, Payame Noor University, 2017-04-01)An extremely facile and efficient procedure which has been developed for the synthesis of dihydropyrrol-2-ones. One-pot four-component reaction of amines, dialkyl acetylenedicarboxylates and formaldehyde in the presence ...
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N,N-Dimethylbiguanide immobilized on mesoporous and magnetically separable silica: Highly selective and feasible organocatalyst for synthesis of β-nitroalcohols
(Islamic Azad University, Shahreza Branch, 2015-09-01)An organosuperbase (N,N-dimethylbiguanide) immobilized on mesoporous and magnetically separable silica supports, was found for the first time, to act as a highly-stable, scalable and efficient heterogeneous catalyst for ...
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N-(2-pyridylmethyl)-L-histidine functionalized Fe3O4 magnetic nanoparticles as an efficient catalyst for synthesis of β-amino ketones
(Sharif University of Technology, 2020-06-01)N-(2-Pyridylmethyl)-L-histidine functionalized Fe3O4 magnetic nanoparticles (PMHis@Fe3O4 MNPs) efficiently catalyzed three-component Mannich-type reaction of ketones, aromatic aldehydes and anilines, to synthesize β-amino ...
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N-(5-Mercapto-1,3,4-Thiadiazol-2-yl)-2-Phenylacetamide Derivatives: Synthesis and In-vitro Cytotoxicity Evaluation as Potential Anticancer Agents
(School of Pharmacy, Shahid Beheshti University of Medical Sciences, 2014-06-01)A new series of N-(5-Mercapto-1,3,4-thiadiazol-2-yl)-2-phenylacetamide derivatives (3a-3j) were synthesized via an amidation reaction using EDC and HOBt in acetonitrile solvent at room temperature condition. Chemical ...
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N-[4-(Dimethyl Amino) Benzylidene] Benzoxide as a New Luminophor in Peroxyoxalate Chemiluminescence System for the Determination of Sucrose
(Payame Noor University, Iranدانشگاه پیام نور, 2016-09-01)In this work, the first, intense and efficient POCL arising from the reaction of bis (2, 4, 6-trichlrophenyl) oxalate (TCPO) with hydrogen peroxide in the presence of N-[4-(dimethyl ...
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N-acetyl cysteine in ovulation induction of PCOS women underwent intrauterine insemination: An RCT
(Yazd, Yazdresearch and Clinical Center for Infertility, Shahid Sadoughi University of medical Sciences, Yazd, Iran, 2017-06-01)Background: N-acetyl cysteine (NAC) was proposed as an adjuvant to clomiphenecitratefor ovulation induction in patients with polycystic ovary syndrome (PCOS)without clomiphene citrate resistance. Objective: To evaluate the ...
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N-Acetylcysteine Overdose After Acetaminophen Poisoning
(Sami Publishing Company, 2017-04-01)N-acetylcysteine (NAC) is a drug used widely and effectively in oral and intravenous forms as a specific antidote for acetaminophen poisoning. In children considering the toxic dose of acetaminophen ingested ...