نتایج جستجو برای: bending machine

تعداد نتایج: 291343  

Journal: :International journal of research - granthaalayah 2021

Sheet metal bending is one of the important metals forming processes at ambient temperature. The usage high-strength steel stronger materials for construction components in automotive industries. However, complex shapes, cold not always sufficient, and heating workpiece plays a major role manufacturing these shapes. Bendability may increase with increasing temperature currently, hot advanced hi...

Journal: :iranian journal of medical sciences 0
m.j. emami a. oryan h. saeidinasab a. meimandi parizi

background: there are multiple methods for acceleration of bone healing. bone marrow has been shown to contain osteoprogenitor cells.   objective: to determine the effect of percutaneous bone marrow injection on bone healing.   methods: 15 mature, 2-kg-weighing white new zealand rabbits from both sexes were randomized into 3 groups: group i: only osteotomy of right radius was performed and a 5 ...

Journal: :The Journal of General Physiology 1962
Edward S. Castle

The distribution of curvature and of bending speed along the cell's growing region are studied during steady state phototropic bending. At the start, elemental bending speed parallels the known axial distribution of growth rate. Hence regional phototropic sensitivity is initially determined by the local growth rate, and unilateral visible light acts proportionally at all levels of the growth zo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

2011
CHAO JIANG

The hoes are widely used in the farms and home gardens in the United States. Many existing hoes are not ergonomically designed because they require a lot of back bending and wrist bending during use. Back bending often causes lower back injuries, and wrist bending often causes carpal tunnel syndrome. It can be very expensive to cure these injuries. The objective of this project is to reduce bac...

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...

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...

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