نتایج جستجو برای: iridatropylium cation

تعداد نتایج: 55682  

1998
Rune M. Jensen

This paper applies duration calculus to the speciication and ver-iication of a complex robotics task: Fingers grasping an object. We present a model of the relevant features of the mechanical design and provide a speciication for sensors, actuators and a controller. Requirements are then speciied in an assumption commitment style, and it is checked through calculation that the design satisses t...

1995
Derek Partridge

The notion of \speciication" plays a key role in the developing science of computing. It is typically considered to be the keystone in the software development process. However, there is no single, generally agreed meaning of \speciication" that bears close scrutiny. Instead there is a variety of diierent, although partially interlocking and overlapping interpretations of the term. We catalogue...

2009
Bertille Antoine Eric Renault

We consider a general GMM framework where weaker patterns of identi cation may arise: typically, the data generating process is allowed to depend on the sample size. We are interested in providing inference about the identi cation of the structural parameter. First, we propose a consistent Hausman-type test to test whether additional moment conditions enhance its identi cation. Failing to rejec...

Journal: :journal of physical & theoretical chemistry 2005
poupak khazaeli-parsa mehran aghaie karim zare azar bouzaripour

in this study the binding abilities of 1,3-calix[4]biscrown-6 (l) toward ba2+ and ca2+ have beenestablished in methanol by spectrophotometric measurements at 25±0.1 °c and 0.01 m ionicstrength, and with using specfit computer program; stability constants for 2 : 1, metal : ligandcomplexes has been estimated

Journal: :archives of razi institute 2016
n. mohamadpour h. rabei a. zare mirakabadi m. ghane a. ebrahim habibi

scorpion venoms contain of variety of peptides toxic to mammals ، insects and crustaceans. toxic peptides are the main factors in scorpion venom causing toxicity, (their amount being 1-3%of total venom.). most of the scorpion toxins have been isolated from the venoms of scorpions in the family buthidae. the scorpion buthotus schach belonging to the buthidae family is widely found in the western...

2015
Ligang Bai Quan Li Serena A. Corr Michael Pravica Changfeng Chen Yusheng Zhao Stanislav V. Sinogeikin Yue Meng Changyong Park Guoyin Shen

Ligang Bai, 2, ∗ Quan Li, Serena A. Corr, Michael Pravica, Changfeng Chen, Yusheng Zhao, Stanislav V. Sinogeikin, Yue Meng, Changyong Park, and Guoyin Shen † High Pressure Collaborative Access Team (HPCAT), Geophysical Laboratory, Carnegie Institute of Washington, Argonne, IL 60439, USA Department of Physics and Astronomy, University of Nevada Las Vegas and High Pressure Science and Engineering...

Journal: :The Journal of chemical physics 2013
Orion Shih Alice H England Gregory C Dallinger Jacob W Smith Kaitlin C Duffey Ronald C Cohen David Prendergast Richard J Saykally

The formation of like-charge guanidinium-guanidinium contact ion pairs in water is evidenced and characterized by X-ray absorption spectroscopy and first-principles spectral simulations based on molecular dynamics sampling. Observed concentration-induced nitrogen K-edge resonance shifts result from π* state mixing and the release of water molecules from each first solvation sphere as two solvat...

Water saturation and cation exchange capacity are the most significant parameters used to calculate a hydrocarbon zone potential. In clean formations, by applying the famous Archie model, which assumes that in the formation the only electric conductor is the formation water, the water saturation can be calculated. Additionally, in shaly sand formations this assumption may not be true as the ion...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2009

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