نتایج جستجو برای: molecular mass

تعداد نتایج: 1078688  

Journal: :The Journal of chemical physics 2011
Eiji Tsuchida

Mass tensor molecular dynamics method was first introduced by Bennett [J. Comput. Phys. 19, 267 (1975)] for efficient sampling of phase space through the use of generalized atomic masses. Here, we show how to apply this method to ab initio molecular dynamics simulations with minimal computational overhead. Test calculations on liquid water show a threefold reduction in computational effort with...

Journal: :The Journal of antibiotics 1982
K Harada M Suzuki N Takeda A Tatematsu H Kambara

Sir: In our laboratories two strategies for obtaining mass spectra of involatile and/or thermally unstable natural products have been used. One is an optimization of sample vaporization, which involves rapid sample heating followed by thermal desorption and ionization under chemical ionization (CI) conditions, that is emitter CI mass spectrometry (emitter CIMS). Recently, we have reported a pre...

Journal: :Journal of molecular spectroscopy 1999
Watson Roytburg Ulrich

The major part of the difference between the zero-point and equilibrium moment of inertia of a molecule is a homogeneous function of degree 12 in the atomic masses. The use of explicit mathematical models of is studied here as a means of determining near-equilibrium molecular structures from the zero-point moments of inertia of a range of isotopomers. It is found that models with more than two ...

2009
Aaron P. Russell

1. The maintenance of skeletal muscle mass is determined by a fine balance between protein synthesis and protein degradation. Skeletal mass is increased when there is a net gain in protein synthesis which can occur following progressive exercise training. In contrast, skeletal muscle mass is lost when degradation occurs more rapidly than synthesis and is observed in numerous conditions includin...

Journal: :Clinical and experimental pharmacology & physiology 2010
Aaron P Russell

1. The maintenance of skeletal muscle mass is determined by a fine balance between protein synthesis and protein degradation. Skeletal mass is increased when there is a net gain in protein synthesis, which can occur following progressive exercise training. In contrast, skeletal muscle mass is lost when degradation occurs more rapidly than synthesis and is observed in numerous conditions, includ...

Journal: :Proceedings of the National Academy of Sciences 2012

Journal: :Symposium - International Astronomical Union 2004

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