نتایج جستجو برای: theoretical study

تعداد نتایج: 4169010  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده معماری و شهرسازی 1388

چکیده ندارد.

Journal: :journal of physical & theoretical chemistry 2014
maryam mehdizadeh barforushi karim zare

the dopamine has been studied theoretically at the b3lyp/6-31g* level were performed in gasphase. we calculated physical parameters like atomic charges, energy (=>), asymmetry parameter(?), chemical shift @iso, dipole moment and isotropic nmr determinant and in this work we usedgaussian 03 at nmr and calculation by using b3lyp methods with 6-31g* basis set.

Journal: :journal of physical & theoretical chemistry 2014
jamileh shakibayifar karim zare

the methamphetamine has been studied theoretically at the mp2 [1]/6-31g[2] level in gas phase.methamphetamine has been investigated via nmr, frequencies calculation and nbo analysis. thestructure of methamphetamine was designed primarily using of chem. bio draw and it geometry hasbeen optimized at the mp2/6-31g computational level. the present work consists the study of themethamphetamine repor...

Journal: :Frontiers in bioscience 2009
Andrej Vilfan

Myosin V was the first discovered processive motor from the myosin family. It has therefore been subject of a number of mechanical, kinetic, optical and structural studies and now belongs to the best characterised motor proteins. This effort has been accompanied by a number of different theoretical models. In this article we give an overview of them and discuss what they have in common and wher...

1973
Ryszard S. Michalski

The paper presents a set-theoretical definition of the classification problem, and then discusses and illustrates by examples the application of the variable-valued logic system VL. to the synthesis of minimal (or simplest) classification rules under cost (or simplicity) functionals designed by a user from available criteria.

2009
Jaap Voeten Job de Haan Gerard de Groot

This paper addresses the question whether innovation is within reach for small enterprises in developing economies by studying four cases of new technologies, products and business practices in traditional craft in Northern Vietnam. The paper starts with reviewing definitions of innovation since Schumpeter. It concludes that newness, value creation and process are time and again considered as t...

Journal: :InformingSciJ 2002
Nagib Callaos Belkis Callaos

Our main purpose in this paper is to start a process of a systemic definition of the notion of information and to provide some initial practical consequences of it. We will try to do that providing: 1) a conceptual definition, following Ackoff’s (1962) description and method of such a kind of definition, and 2) following Peirce’s (1931-5,1958) conception of “meaning”, where the practical conseq...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2012
Eric N Zimanyi Robert J Silbey

Recent experiments on light-harvesting complexes have shown clear indication of coherent transport of excitations in these aggregates. We discuss the theoretical models that have been used to study energy transfer in molecular aggregates, beginning with the early models of Förster and Davydov and ending with the theoretical models of the present day.

2015
Erik Bernitt Cheng Gee Koh Nir Gov Hans-Günther Döbereiner

Circular Dorsal Ruffles (CDRs) have been known for decades, but the mechanism that organizes these actin waves remains unclear. In this article we systematically analyze the dynamics of CDRs on fibroblasts with respect to characteristics of current models of actin waves. We studied CDRs on heterogeneously shaped cells and on cells that we forced into disk-like morphology. We show that CDRs exhi...

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