نتایج جستجو برای: friction meter

تعداد نتایج: 60285  

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2011
farzad jalilian tabar rashid gholami ali nejat lorestani

background & aim: increasing economic role of medicinal herbs in recent society and complexity of modern technologies in production (planting and harvesting), transportation, storage, processing, quality evaluation, distribution, marketing and consumption of these products require a thorough understanding of their physical properties. coefficient of friction of plant on the various surfaces...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده نساجی 1386

همواری ، نرمی و سفتی پارچه سه خاصیتی هستند که رفتار فیزیکی و مکانیکی یک پارچه را مشخص می کنند و برای مشخص کردن کیفیت یک پارچه بکار می روند. بر روی دو خاصیت نرمی و شقی پارچه، که وابسته به میزان فشردگی پارچه و میزان خمش پارچه می باشند، بررسی های زیادی صورت گرفته است. عاملی که تأثیر زیادی بر روی همواری پارچه دارد، عاملی به نام اصطکاک است، به عنوان مثالف هر پارچه ای که مقاومت اصطکاکی کمی از خود در ...

2007
Nicolas J Vos Dirk J Riemersma

Slippery surfaces are a continuous concern in equine veterinary practice during both treatment and orthopaedic work-ups, especially when horses have to trot on circles. Sliding of the equine foot on the ground with the potential of injury is prevented if the horizontally acting accelerating or decelerating forces on the foot do not exceed maximal friction. Friction can be calculated and therefo...

2004
N. R. Tas C. Gui M. Elwenspoek

Static friction in shearing mode can be expressed as the product of the shear strength of the interface and the real contact area. The influence of roughness on friction in elastic adhesive contact is analyzed. Special attention is paid to low loading conditions, in which the number of contact points is small. The models are used to analyze a friction experiment in a MEMS friction meter.

Journal: Journal of Herbal Drugs 2011
Ali Nejat Lorestani Farzad Jalilian Tabar, Rashid Gholami

Background & Aim: Increasing economic role of medicinal herbs in recent society and complexity of modern technologies in production (planting and harvesting), transportation, storage, processing, quality evaluation, distribution, marketing and consumption of these products require a thorough understanding of their physical properties. Coefficient of friction of plant on the various surfaces is ...

Journal: Journal of Herbal Drugs 2011
Ali Nejat Lorestani Farzad Jalilian Tabar, Rashid Gholami

Background & Aim: Increasing economic role of medicinal herbs in recent society and complexity of modern technologies in production (planting and harvesting), transportation, storage, processing, quality evaluation, distribution, marketing and consumption of these products require a thorough understanding of their physical properties. Coefficient of friction of plant on the various surfaces is ...

2016
Niraj Kumar Punit Kumar

Aquantitative relationship is demonstrated between the coefficient of static friction and the milling process parameters. Different levels of surface roughness are obtained by varying the spindle speed, depth of cut and feed which is followed by measurement of surface roughness using stylus profile meter. The corresponding coefficients of static friction are measured for all specimens using inc...

2009
Toshiro NORITSUGU

This paper describes one method to attain a robust positioning control of pneumatic driving system comprising a pneumatic cylinder and PCM digital control valves. A pneumatic driving system has become one of interests in the industrial fields, however, the control characteristics are inevitably affected by the friction force and parameter changes of plant due to air compressibility. The control...

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