نتایج جستجو برای: tensile strength and young

تعداد نتایج: 16894436  

ژورنال: گلجام 2020

The Iranian Carpet Museum collection contains the most valuable specimens of rugs from the ninth century AH to the contemporary period and is a rich source of research for researchers and art friends. Carpet Museum carpets and carpets, according to their quality and antiquity and taking into account the characteristics of carpet in terms of color, design, role, texture and variety of carpet wea...

Journal: :iranian journal of medical physics 0
mohammad sadegh nourbakhsh phd student in biomaterials, amirkabir university of technology, tehran, iran. mohammad etrati khosroshahi associated professor, faculty of biomedical engineering, amirkabir university of technology, tehran, iran. sohrab saremi m.sc in bioelectric engineering, islamic azad university, tehran, iran. shahram rabbani assistant professor, tehran heart center, tehran university of medical sciences, tehran, iran amir hooshyar m.sc in biomechanics engineering, amirkabir university of technology, tehran, iran. farhad tabatabaee6 assistant professor, biomedical engineering dept., amirkabir university of technology, tehran, iran.

introduction: laser tissue soldering using albumin and indocyanine green dye (icg) is an effective technique utilized in various surgical procedures. the purpose of this study was to perform laser soldering of rat skin under a feedback control system and compare the results with those obtained using standard sutures. material and methods: skin incisions were made over eight rats’ dorsa, which w...

شریفی, داوود , علیزاده, یونس , مدنی, عباس, چشم خاوری, علی ,

    Background & Aim: Many factors influence the tensile strength of the tendon in a tendon-bone tunnel complex. The purpose of this study is to determine the influence of tendon length & time of implantation of the tendon in the bone tunnel on the tensile strength of the tendon in a rabbit model. Material and Methods: In this prospective study fourteen adult(age 6 months) White New Zealand rab...

2013
Patricia W. Freeman Cliff A. Lemen

The strength of canine teeth in several carnivores is found through direct fracture experiments. The average forces required to break the canines of adult animals are coyote 1170 N, red fox 533 N, bobcat 737 N and raccoon 512 N. Stresses created in teeth at the breaking load are predicted by fi nite-element analysis and beam theory. The ultimate tensile stress sustainable in these teeth is 338 ...

abdol Mohammad Rezavand, Amir Hooshmandpoor Mehdi Nazari Marveyan

Integral production of the thermoplastic parts with complicated geometric shapes by the processes such as injection molding and extrusion is not economical. It is better to divide the final shape into more simple parts and after production join them by an appropriate welding process. This research aims to study the tensile strength and toughness energy of high- density polyethylene parts which ...

Journal: :علوم و تکنولوژی پلیمر 0
زینب عبادی محمد عطایی مرتضی ابراهیمی

the effect of nanoparticle diamond incorporated in an experimental dental adhesive formulation is valuated by examining the mechanical properties and shear bond strength of the system. diamond nanoparticles were incorporated into the dentin adhesive system in different concentrations of 0, 0.05, 0.1, 0.2, 0.5, and 1.0 weight percentages. the suspensions were ultrasonicated to facilitate the nan...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
a. fayaz dept. of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. a. noori dept. of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran.

objective: among the various impression materials, for alginate tear strength is probably more important than the compressive strength. the tear strength is important when an impression involves a mechanical undercut and/or lacks bulk strength to resist tearing. this study evaluated tear strength of iralgin and compared it with tear strength of alginoplast. methods: in this invitro experimental...

B. Mansouri, H. Montazer Hojat

Structural steel sections are mainly used in beams and columns of building frames. Iran National Steel IndustrialGroup is among the oldest and largest producers of beams in Iran. It has two beam production lines, namely Line630 and Line 650. In this study, the mechanical properties of manufactured beams in these production lines werecompared. Based on the t-test results, the e...

A. Kermanpur, A. Najafizadeh K. Kiani M. Karkehabadi,

In recent years, great attention has been paid to the development of high manganese austenitic TWIP steels exhibiting high tensile strength and exceptional total elongation. Due to low stacking fault energy (SFE), cross slip becomes more difficult in these steels and mechanical twinning is then the favored deformation mode besides dislocation gliding. Chemical composition along with processing ...

Journal: :international journal of advanced design and manufacturing technology 0
vahiid zakeri teacher at azad university of tabriz ahad gholipoor teacher at azad university of tabriz parviz asadi teacher at azad university of tabriz

in this paper, hardness and tensile properties of welded zone of aluminum 1100 alloys by friction stir welding process was investigated and the effects of rotational and traverse speeds of tool on these parameters was studied. also the fracture cross-section of welded samples was investigated. according the results of this paper, the hardness of weld material is higher than base material and is...

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