نتایج جستجو برای: structural configurations

تعداد نتایج: 446027  

Journal: :Physical biology 2011
Jun Soo Kim Prabhakar Pradhan Vadim Backman Igal Szleifer

Microscopic structural changes have long been observed in cancer cells and used as a marker in cancer diagnosis. Recent development of an optical technique, partial-wave spectroscopy (PWS), enabled more sensitive detection of nanoscale structural changes in early carcinogenesis in terms of the disorder strength related to density variations. These nanoscale alterations precede the well-known mi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم انسانی 1389

abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...

The purpose of this research is to provide a deeper understanding of the planar high- symmetry configuration instability. In the ideal case, the distortion corresponds to the movements of nuclei along normal modes that belong to non-totally symmetric irreps of the high symmertry (HS) point group of molecule. The analysis of the structural distortion from the HS nuclear arrangements of the JT ac...

1999
Constantinos Mavroidis Bernard Roth

In this paper, a method is proposed to analytically determine the "uncertain" configurations of a general 6R manipulator. A configuration is called uncertain if in that configuration the manipulator’s joint freedom is greater than its end-effector freedom. In uncertain configurations, the manipulator acts like a redundant system where the endeffector remains in the same pose even if one (or mor...

Journal: :The Journal of Cell Biology 1972
Nicholas E. Weber

The relationships between membranes and intramembrane compartments of isolated heart mitochondria are inadequately defined to express the induced morphological changes associated with the structural organization. The inner membrane and matrix are the major structural entities which undergo transformation upon alteration of metabolism or incubation conditions. To better express these morphologic...

2003
NICHOLAS E. WEBER

The relationships between membranes and intramembrane compartments of isolated heart mitochondria are inadequately defined to express the induced morphological changes associated with the structural organization . The inner membrane and matrix are the major structural entities which undergo transformation upon alteration of metabolism or incubation conditions . To better express these morpholog...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2002
ram k. agrawal indranil chakraborti n.k. sharma

the stereochemistry of the actinide elements has recently undergone considerable development and a wide variety of coordination numbers and geometries have been observed. this structural versatility arises from the lack of strong crystal field effects for the 5f-electronic configurations as well as from the large ionic radii of these metal ions, which change markedly with oxidation number, or a...

Journal: :مدیریت صنعتی 0
سید محمود قاضی میرسعید دانشجوی کارشناسی ارشد، دانشکده مهندسی صنایع، دانشگاه خواجه نصیرالدین طوسی، تهران، ایران امیرعباس نجفی استادیار دانشکدة مهندسی صنایع، دانشگاه خواجه نصیرالدین طوسی، تهران، ایران حمید شهریاری دانشیار دانشکده مهندسی صنایع، دانشگاه خواجه نصیرالدین طوسی، تهران، ایران

one of the most important problems in the system reliability optimization is redundancy allocation problem that has been studied in different system configurations. k-out-of-n structure is a general system configuration and offers enhanced capabilities for analyzing more design problems. hence, in this paper, the redundancy allocation problem of k-out-of-n systems is studied. in the most previo...

Behrokh Khoshnevis Jing Zhang

Contour Crafting is an emerging technology that uses robotics to construct free form building structures by repeatedly laying down layers of material such as concrete. The Contour Crafting technology scales up automated additive fabrication from building small industrial parts to constructing buildings. Tool path planning and optimization for Contour Crafting benefit the technology by increasin...

Journal: :CoRR 2013
Alexis Ballier Emmanuel Jeandel

We study two relations on multi-dimensional subshifts: A pre-order based on the patterns configurations contain and the Cantor-Bendixson rank. We exhibit several structural properties of two-dimensional subshifts: We characterize the simplest aperiodic configurations in countable SFTs, we give a combinatorial characterization of uncountable subshifts, we prove that there always exists configura...

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