نتایج جستجو برای: hard

تعداد نتایج: 147199  

Journal: interface and thin films 2018

In previous work, one of us calculated the Solvation force of hard ellipsoid fluid with hard Gaussian overlap potential using hard needle wall interaction and non-linear equation proposed by Grimson- Rickyazen. In present work, using density functional theory and extended restricted orientation model, the solvation force of hard ellipsoid fluid in presence of more realistic rod- sphere and rod-...

Journal: :مهندسی مکانیک شریف 0
سید مرتضی سید ریحانی دانشکده ی مهندسی و علم و مواد، دانشگاه صنعتی شریف حمید رضا محمدیان سمنانی دانشکده ی مهندسی و علم و مواد، دانشگاه صنعتی شریف

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1995
Russell Impagliazzo

Consider a decision problem that cannot be 1 ? approximated by circuits of a given size in the sense that any such circuit fails to give the correct answer on at least a fraction of instances. We show that for any such problem there is a speciic \hard-core" set of inputs which is at least a fraction of all inputs and on which no circuit of a slightly smaller size can get even a small advantage ...

Journal: :journal of modern processes in manufacturing and production 2015
nahid hassanzadeh nemati shiva yasini maryam aryana

different methods have been evaluated for manufacturing the porous ti6al4v alloys according todecreasing stress shielding phenomenon and increasing mechanical compatibility between themetallic components and the host tissue. for this purpose, in this work ti6al4v alloy chips werepressed under 400 mpa pressure and then samples were categorized and heated into two groups at1000 and 1150℃ under a ...

Journal: :journal of dental research, dental clinics, dental prospects 0
naser asl aminabadi ensiyeh maljaei leila erfanparast amir ala aghbali hamed hamishehkar ebrahim najafpour

background and aims. the aim of present study was to investigate pulp-dentin complex reactions following direct pulp capping (dpc) with calcium hydroxide [ca(oh)2] and simvastatin as pulp-capping materials in the primary human molars. materials and methods. 120 primary molar teeth which had to be extracted for orthodontic reasons were randomly allocated into four groups. group ι as a control, u...

Journal: :The Anatolian Journal of Cardiology 2019

Journal: :The Journal of Thoracic and Cardiovascular Surgery 2016

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