نتایج جستجو برای: k1 hf

تعداد نتایج: 27738  

ژورنال: :مجله محیط زیست و مهندسی آب 0
سادات فیض نیا استاد، گروه آبخیزداری،دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران سید دانا حسامی دانش آموخته کارشناسی ارشد، گروه آبخیزداری، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران

یکی از روش های مؤثر در شناسایی منابع رسوب و فرسایش، شناسایی سازندهای حساس به فرسایش در حوضه می باشد که این امر را می توان با استفاده از روش ردیابی ژئوشیمیایی انجام داد. در این پژوهش با توجه به رسوبزایی بالای بخش جنوب غربی حوزه آبخیز دریاچه زریوار و وجود سازه های آبخیزداری احداث شده در این محدوده،  نمونه های رسوب ریزدانه با استفاده از روش ردیابی ژئوشیمیایی مورد بررسی قرار گرفت. با استفاده از این...

Journal: :Astronomy & Astrophysics 2003

Journal: :Bulletin: Classe des sciences mathematiques et natturalles 2003

Journal: :international journal of electrical and electronics engineering 0
e. rouhanii s. gharibzadehii a. abootalebiiii a .karimianiv f. khalili esfahaniv

in this study a new minimum lumped electrical model of total circulatory system through numerical solutions to approximate the response of the human circulatory system was presented. among five existent ventricular elastances as activity function of heart pumps, a more accurate model was chosen as well as the operation of baroreflex system to accommodate variations in heart rate and systemic va...

Journal: :journal of physical and theoretical chemistry 0
m. abul kashem liton department of chemistry, mawlana bhashani science and technology university, santosh, tangail-1902, bangladesh sabrina helen department of chemistry, mawlana bhashani science and technology university, santosh, tangail-1902, bangladesh mukta das department of chemistry, mawlana bhashani science and technology university, santosh, tangail-1902, bangladesh dipa islam department of chemistry, mawlana bhashani science and technology university, santosh, tangail-1902, bangladesh m. rabiul karim department of chemistry, mawlana bhashani science and technology university, santosh, tangail-1902, bangladesh

the acidity constants (pka) of thirty four (34) ;-substituted carboxylic acids in aqueous solution havebeen calculated using conductor-like polarizable continuum (c-pcm) solvation model. the gasphaseenergies at the density functional theory (dft-mpw1pw91) and solvation energies athartree fock (hf) are combined to estimate the pka values which are very close to the experimentalvalues where, and ...

Journal: :caspian journal of chemistry 2012
seyed naser azizi salma ehsani tilami fatematozzahra mosavi

nowadays nmr spectroscopy becomes a powerful tool in chemistry because of the nmr chemical shifts. hartree–fock theory and the gauge-including atomic orbital (giao) methods are used in the calculation of 29si nmr chemical shifts of various silicate species in the silicate solution as initial components for zeolite synthesis both in gas and solution phase. calculations have been performed at geo...

1999
MORTEN GRUNNET HANS-GÜNTHER KNAUS CHRISTINA SOLANDER DAN A. KLAERKE Hans-Günther Knaus

Grunnet, Morten, Hans-Günther Knaus, Christina Solander, and DanA. Klaerke. Quantification and distribution of Ca21-activated maxi K1 channels in rabbit distal colon. Am. J. Physiol. 277 (Gastrointest. Liver Physiol. 40): G22– G30, 1999.—The Ca21-activated maxi K1 channel is an abundant channel type in the distal colon epithelium, but nothing is known regarding the actual number and precise loc...

Journal: :Journal of the National Cancer Institute 2002
Om Prakash Zhen-Ya Tang Xiaochang Peng Roy Coleman Javed Gill Gist Farr Felipe Samaniego

BACKGROUND The K1 gene of human herpesvirus-8 (HHV-8; also known as Kaposi's sarcoma-associated herpesvirus) encodes a transmembrane signaling protein that elicits cellular activation events. To evaluate the potential role of K1 in HHV-8-associated pathogenesis, we produced transgenic mice expressing the HHV-8 K1 gene under the transcriptional control of the simian virus 40 promoter. METHODS ...

2009
M. Bayar

Separating the mixture of the K1(1270) and K1(1400) states, the B → K1(1270, 1400)νν transition form factors are calculated in the three-point QCD sum rules approach. The longitudinal, transverse and total decay widths as well as the asymmetry parameter, characterizing the polarization of the axial K1(1270, 1400) and the branching ratio for these decays are evaluated. PACS numbers: 11.55.Hx, 13...

2000
Yasuo Ohno MICHAEL E. HOFFMAN YASUO OHNO

We establish a new class of relations among the multiple zeta values ζ(k1, . . . , kl) = ∑ n1>···>nl≥1 1 n k1 1 · · ·n kl k , which we call the cyclic sum identities. These identities have an elementary proof, and imply the “sum theorem” for multiple zeta values. They also have a succinct statement in terms of “cyclic derivations” as introduced by Rota, Sagan and Stein. In addition, we discuss ...

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