نتایج جستجو برای: impact strength

تعداد نتایج: 953358  

Journal: :Physical Medicine and Rehabilitation - International 2017

Journal: :Jornal Brasileiro de Nefrologia 2015

2015
P. Palmeri P. Quinet D. Batani

Article history: Received 26 August 2014 Received in revised form 1 December 2014 Accepted 1 December 2014 Available online 26 December 2014

Journal: :New South Wales public health bulletin 2005
Alex Scott-Samuel

The most widely accepted definition of health impact assessment (HIA), from a consensus conference in Gothenburg organised by the World Health Organisation’s (WHO) European Centre for Health Policy, defines HIA as ‘a combination of procedures, methods and tools by which a policy, programme or project may be judged as to its potential effects on the health of a population, and the distribution o...

2013
S. L. Tan W. M. Soong J. E. Green M. J. Steer S. Zhang L. J. J. Tan J. S. Ng I. P. Marko S. J. Sweeney A. R. Adams J. Allam P. R. David

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1997

Journal: :journal of dentistry, tehran university of medical sciences 0
fahimeh hamedi-rad assistant professor, department of prosthodontist, dental faculty of tabriz medical science university, tabriz, iran. tahereh ghaffari assistant professor, department of prosthodontist, dental faculty of tabriz medical science university, tabriz, iran. farzad rezaii dentist, department of georesources and materials engineering, university of michigan-ann arbor. ali ramazani associate researcher, department of georesources and materials engineering, university of michigan-ann arbor.

polymethyl methacrylate (pmma), widely used as a prosthodontic base, has many disadvantages, including a high thermal expansion coefficient and low thermal conductivity, a low elasticity coefficient, low impact strength and low resistance to fatigue. this study aimed to make an in vitro comparison of the thermal conductivity, compressive strength, and tensile strength of the acrylic base of com...

Journal: :Journal of the Society of Materials Science, Japan 1996

1999
Rajan Tandon Gregory E. Hilmas Jochen Marschall

The high-velocity impact resistance of hot-pressed zirconum diboride with 30 volume percent silicon carbide was studied using a combined experimental and computational approach. Test specimens in the form of 2 mm thick polished disks were impacted with -0.8 mm diameter tungsten carbide spheres at velocities up to 320 d s . The intrinsic flexure strength of the specimens was -1000 MPa. The flexu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1352

خواص فیزیکی و مکانیکی چوب مورد مطالعه قرار گرفته است . برای اینکار چوب درخت چنار انتخاب شده است . آزمایشات انجام شده هم بصورت استاتیک و هم بصورت دینامیک بوده است . نمونه هائی با رطوبت و دانسیته های مختلف آزمایش شده اند. همه موارد آزمایشات در دمای آزمایشگاه انجام شده است . خواص مکانیکی چون ضریب ارتجاعی (modulus of elasticity) حد تناسب (proportional limit) حد کشش (tensile strength) تاب خرد شدگی (...

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