نتایج جستجو برای: a fixed gravimetric

تعداد نتایج: 13457611  

Journal: :Journal of the American Chemical Society 2013
Yang Peng Vaiva Krungleviciute Ibrahim Eryazici Joseph T Hupp Omar K Farha Taner Yildirim

We have examined the methane uptake properties of six of the most promising metal organic framework (MOF) materials: PCN-14, UTSA-20, HKUST-1, Ni-MOF-74 (Ni-CPO-27), NU-111, and NU-125. We discovered that HKUST-1, a material that is commercially available in gram scale, exhibits a room-temperature volumetric methane uptake that exceeds any value reported to date. The total uptake is about 230 c...

2017
Kamen Ivanov Nikolaos K. Pavlis Pencho Petrushev Kamen G. Ivanov

Gravimetric quantities are commonly represented in terms of high degree surface or solid spherical harmonics. After EGM2008, such expansions routinely extend to spherical harmonic degree 2190, which makes the computation of gravimetric quantities at a large number of arbitrarily scattered points in space using harmonic synthesis, a very computationally demanding process. We present here the dev...

2015
Huan Ma Daozheng Huang Minzhou Zhang Xin Huang Shiyu Ma Shuai Mao Wenhui Li Yanfen Chen Liheng Guo

BACKGROUND Lung ultrasound (LUS) can diagnose extravacular lung water (EVLW) through the visualization of B lines in both humans and large animals. However, there are no published data on the use of ultrasound to detect EVLW in rats, the gold standard to evaluate of EVLW in rats is post-mortem gravimetric analysis. The present study was designed to determine the similarity between lung sonograp...

Journal: :Applied microbiology 1971
J W Rippon M S Hoo

The elastin-agar plate is useful for determining elastolytic activity. Determination of fungal elastase, however, requires partial purification of culture extracts and the orcein elastin or gravimetric method.

Journal: :Indonesian journal of pure and applied chemistry 2021

The production and characterization of bagasse biochar (Saccharum officinarum Linn) in this study was carried out through pyrolysis for 4 hours at a temperature 1100C. purpose research to determine the capacity as an ameliorant improving fertility marginal lands, especially West Kalimantan, namely peatlands. is known based on gravimetric analysis, which has moisture content 0.38%, ash 2.42%, vo...

2012
R. Tenzer R. Čunderlík N. Dayoub A. Abdalla

Weapply a novel approach for the gravimetricmarine geoidmodellingwhich utilise the boundary elementmethod (BEM). The direct BEM formulation for the Laplace equation is applied to obtain a numerical solution to the linearised fixed gravimetric boundary-value problem in points at the Earth's surface. The numerical scheme uses the collocation method with linear basis functions. It involves a discr...

2003
DARYL COOPER

An automorphism of a finitely generated free group F extends to a homeomorphism of the end completion E of F. The set of fixed points of this homeomorphism is finitely generated in a certain sense. In particular this implies that the subgroup of elements fixed by the automorphism is finitely generated in the usual sense. The emphasis on E instead of F in this paper is analogous to Thurston’s st...

Journal: :Proceedings of the National Academy of Sciences 1917

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