نتایج جستجو برای: a andl stability

تعداد نتایج: 13513622  

Journal: :journal of the iranian chemical research 0
sangita sharma department of chemistry, hemchandracharya, north gujarat university, patan-384 265, gujarat, india ashish patel department of chemistry, hemchandracharya, north gujarat university, patan-384 265, gujarat, india jasmin bhalodia department of chemistry, hemchandracharya, north gujarat university, patan-384 265, gujarat, india jayesh ramani department of chemistry, hemchandracharya, north gujarat university, patan-384 265, gujarat, india

the determination of formation constants of binary inner transition metal complexes where m=y(iii) or la(iii) or ce(iii) or pr(iii) or nd(iii) or sm (iii) or gd (iii) or dy (iii) or th(iv) andl = creatinine have been carried out using irving–rossotti titration technique in aqueous mediaat different temperatures and at ionic strength. to understand more about the nature ofequilibrium involving i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

Journal: :International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 2017

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

Journal: :The Yale Journal of Biology and Medicine 1972
L. L. Waters

Myocardial infarction in experimental animals lhas been successfully produced by ligating coronary artery branclhes(l), by injecting obstructing materials into the coronary vessels themselves(2), by external compression(3), and by intravascular electrocoagulation(4). Also, in rats Tlhomas an(l Hartroft were able by dietary means to procluce coronary thrombosis associated witlh myocardial necros...

Journal: :The Yale Journal of Biology and Medicine 1972
E. L. Boulpaep

Electrophysiological techiniques lhave been wiclely uised for the investigation of membrane properties in excitable andl inexcitable tissues. The application of suclh metlho(ds to epitlhelia lhas been extensive, particuilarly for structures that can be mounte(d as an isolated tisstue slheet in special chambers designed to control the bathing soltutions. Witlh respect to the sttu(ly of the renal...

Journal: :Plant physiology 1962
D P Hackett T E Ragland

The role of quinones in electron transport has attracted considerable recent interest (27). Coenzyme Q1O, which is present in plant mitochondria, is closely related to the respiratory chain (6), and the very similar benzoquinone, plastoquinone, appears to be involved in photosynthesis (7) Vitanmin K-type naphthoquinones have been imlplicated in respiratory electron transfer (30), oxidative phos...

Journal: :The Yale Journal of Biology and Medicine 1964
Lawrence S. Cohen

Americani. The Jensen (genetic) positioin on racial (lifferences in intelligence is well alnswered l)y PettigTew's consi(leration of environmental influences on intelligence ancl iintelligence testing (even tlhotuglh Pettigrew's article precdates the Jenseni controversy). Also consi(lere(d by Pettigrew is the social (lefinition of mental illness andl the impact of social class in creating al)pl...

Journal: :Communications in Statistics - Simulation and Computation 2009

Journal: :Australasian J. Combinatorics 1993
R. C. Hamm Dinesh G. Sarvate

Given a BIBD(v,k,A) we can construct a directed BIBD(v,k,A*) by writing each block of the BIBO twice, the second time in the reversed order. Here we prove the analagous expected but useful result that if a BIBD(v,b,r ks,k,A) exists, then a RCOBIBD(v,k,A *} also exists. A nonexistence result is also given.

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