نتایج جستجو برای: nitrogen inversion
تعداد نتایج: 162795 فیلتر نتایج به سال:
Inversion tunneling in a symmetric double minimum potential is challenging large amplitude motion problem which causes all rotational energy levels to split into and an antisymmetric level. Not like other types of such as internal rotation, inversion appears much rarer, but the fundamental knowledge gained from this essential understand complex structures coordination chemistry. A needed for re...
پاچنبری مادرزادی شایعترین آنومالی در ارتوپدی است . در این اختلال پا در وضعیتی عقب - به - جلو چرخیده در نتیجه بیمار بر روی سر و گردن تالوس راه می رود. پاشنه در وضعیت inversion می باشد و forefoot بصورت adduct است . چندین تئوری در باره اتیولوژی ctev پیشنهاد شده که یکی بیان می دارد نقص در یک germ plasma اولیه در تالوس باعث plantar felxion و inversion پیشرونده شده که سیس همراه با تغییرات بافت نرم در...
A microporous bisphenol A diglycidyl ether (DGEBA) epoxified-polyethersulfone (PES) blend membrane (EPES membrane) was prepared through dry-wet phase inversion. This study attempts to correlate the changes in membrane physical and chemical properties when the EPES membranes were exposed to different durations of dry-phase inversion, towards the separation efficiency of carcinogen chromium (VI)....
In this article, we will show the complex inversion formula for the inversion of the L2-transform and also some applications of the L2, and Post Widder transforms for solving singular integral equation with trigonometric kernel. Finally, we obtained analytic solution for a partial differential equation with non-constant coefficients.
dft-gga method of perdew-burke-ernzerhof (pbe) is used with aug-cc-pvtz, 6-311++g**, and def2-tzvp large basis sets to study the hydrogen bond interactions between oxygen lone pair as a donor electron with hydrogen atom connected to the aniline’s nitrogen as an electron acceptor (h2o···hnh-ph), and nitrogen lone pair with hydrogen of water molecule (ph-h2n···hoh), both in the gas phase. in some...
A new method to prepare composite nanofiltration membrane directly and efficiently by controlling the pore structure surface morphology of is proposed in this paper. The fabrication mesoporous silicon modified polysulfone blend membranes via a phase inversion method. structural morphology, functional group analysis, elemental hydrophilicity, chargeability, nitrogen pollutant (ammonia nitrogen, ...
BACKGROUND Characterizing intra-urban variation in air quality is important for epidemiological investigation of health outcomes and disparities. To date, however, few studies have been designed to capture spatial variation during select hours of the day, or to examine the roles of meteorology and complex terrain in shaping intra-urban exposure gradients. METHODS We designed a spatial saturat...
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