نتایج جستجو برای: bending tools

تعداد نتایج: 293978  

2008
Jeremy Curuksu Krystyna Zakrzewska Martin Zacharias

DNA-bending flexibility is central for its many biological functions. A new bending restraining method for use in molecular mechanics calculations and molecular dynamics simulations was developed. It is based on an average screw rotation axis definition for DNA segments and allows inducing continuous and smooth bending deformations of a DNA oligonucleotide. In addition to controlling the magnit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1390

چکیده حل مسئله پیشرو(تعیین مسیر پرتو و زمان سیر بین چشمه و گیرنده در یک مدل سرعتی فرض شده ) بخش مهمی از روشهای توموگرافی لرزه ای را به خود اختصاص می دهد که برای مدلسازی ساختمان سرعتی لرزه ای زمین و تعیین دقیق مرکز زلزله بکار می رود. بنابراین حل سریع و دقیق مسئله پیشرو در زلزله شناسی از اهمیت ویژه ای برخوردار است. در سالهای اخیر پیشرفتهای زیادی در حوزه کامپیوتری صورت گرفته است که از آن جمله می...

2013
Zdenka Uresová Jan Hajic Eva Fucíková Jana Sindlerová

Valency in the PDTs For Czech PDT-Vallex http://ufal.mff.cuni.cz/lindat/PDT-Vallex.html For English EngVallex: http://ufal.mff.cuni.cz/lindat/EngVallex.html PDTs (ID -> val. frame) LEXICONS to give: ACT(.1) PAT(.4) ADDR(.3) Valency and MWEs Valency: ability of words to combine themselves with other lexical units FGD Valency theory MWEs: “idiosyncratic interpretations that cross word boundaries...

2010
Jirí Mírovský Lucie Mladová Zdenek Zabokrtský

We present a tool for annotation of se­ mantic inter­sentential discourse rela­ tions on the tectogrammatical layer of the Prague Dependency Treebank (PDT). We present the way of helping the annotators by several useful features implemented in the annotation tool, such as a possibility to combine surface and deep syntactic representation of sen­ tences during the annotation, a possibili­ ty to ...

2012
Dimitri Peaucelle Sophie Tarbouriech Martine Ganet-Schoeller Samir Bennani

Journal: :The Journal of experimental biology 1970
C J Brokaw

The bending of a flagellum, such as the flagellum which forms the tail of a seaurchin spermatozoon, is the result of active mechanochemical processes occurring within the flagellum itself, which cause it to bend actively throughout its length (Gray, 1955; Machin, 1958). To understand how flagella operate, we must understand not only the mechanisms which generate bending, but also the control me...

2002
Charles J. Brokaw

The cilia and flagella of eukaryotic cells function by active bending that produces cell movements and fluid flows in their environment. They contain a common cytoskeleton, known as the axoneme, that is the locus of all the enzymes and mechanical components that are required for production of useful bending. The bending of many flagella, and some cilia, is planar, or at least nearly planar. In ...

2009
Jeremy Curuksu Martin Zacharias Richard Lavery Krystyna Zakrzewska

DNA bending plays an important role in many biological processes, but its molecular and energetic details as a function of base sequence remain to be fully understood. Using a recently developed restraint, we have studied the controlled bending of four different B-DNA oligomers using molecular dynamics simulations. Umbrella sampling with the AMBER program and the recent parmbsc0 force field yie...

2010
Shoji Horin Mikiko Owashi Yutaka Kasai Shizuo Hayashi

Softness of human hair plays a big roll on the manageability of it. Therefore, it is important to measure the softness quantitatively. It is well known that the softness of long shaped materials can be obtained from tensile young's modulus and bending modulus. The tensile young's modulus is most generally empolyed as a parameter of softness, but is usually obtained by destructive way. Bending e...

2000
Shigeru AOMURA Atsushi KOGUCHI

In the present study, a method is proposed which generates bending sequences of a sheet metal part handled by a robot. If parts are handled by a robot, the best grasping positions for each bending and the number of repositions must be indicated in advance. Using the proposed method, feasible bending sequences with grasping positions are obtained and the sequences are sorted in order of the numb...

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