نتایج جستجو برای: durability

تعداد نتایج: 15435  

Journal: :تحقیقات مهندسی کشاورزی 0
هیمن امیری دانشجوی دکتری مکانیک ماشین های کشاورزی محمدحسین کیانمهر دانشیار گروه مکانیک ماشینهای کشاورزی پردیس ابوریحان، دانشگاه تهران اکبر عرب حسینی دانشیار گروه مکانیک ماشین های کشاورزی پردیس ابوریحان، دانشگاه تهران نبی اله کشوری دانش آموخته کارشناسی ارشد مکانیک ماشین های کشاورزی، پردیس ابوریحان، دانشگاه تهران

agglomeration followed by pelleting is an efficient method to decrease transport costs and increase economic efficiency of composting municipal waste. the moisture content of compost is the most important parameter of the pellet making process for any type of manufacturing device. the experiments in this study were done at moisture contents of 35%, 45% and 50% at extruder shaft rotational speed...

2017
Kyoung Jin Kim Ju Hee Choi Kyeong Jin Kim Jee Hyun An Hee Young Kim Sin Gon Kim Nam Hoon Kim

BACKGROUND Long-term durable glycemic control is a difficult goal in the management of type 2 diabetes mellitus (T2DM). We evaluated the factors associated with durable glycemic control in a real clinical setting. METHODS We retrospectively reviewed the medical records of 194 new-onset, drug-naïve patients with T2DM who were diagnosed between January 2011 and March 2013, and were followed up ...

Journal: :Journal of burn care & research : official publication of the American Burn Association 2007
William Scott Dewey Reg L Richard Travis L Hedman Ted T Chapman Charles D Quick John B Holcomb Steve E Wolf

A common complaint among patients with burns is their inability to grasp items while wearing compression gloves. Recent technological innovations permit the addition of grip-enhancing material to garment fabric. The purpose of this case series was to describe the course of development of compression gloves with enhanced grip modifications. Five different types of grip modifications were made du...

2012
H. Michael Barnes

This overview of durability in composite wood products will discuss the history and background of increasing the durability of wood composites. Some of the current challenges will be presented. Processing for durable composites will include post-manufacture treatments and in-process treatments. New composites and novel approaches and treatments for durability will be discussed.

2016
Ellen F. Eaton Ashutosh R. Tamhane Greer A. Burkholder James H. Willig Michael S. Saag Michael J. Mugavero

Background.  Durability of antiretroviral (ARV) therapy is associated with improved human immunodeficiency virus (HIV) outcomes. Data on ARV regimen durability in recent years and clinical settings are lacking. Methods.  This retrospective follow-up study included treatment-naive HIV-infected patients initiating ARV therapy between January 2007 and December 2012 in a university-affiliated HIV c...

2011
A. I. Chugunov C. J. Horowitz

How long do neutron star mountains last? The durability of elastically deformed crust is important for neutron star physics including pulsar glitches, emission of gravitational waves from static mountains, and flares from star quakes. The durability is defined by the strength properties of the Yukawa crystals of ions, which make up the crust. In this paper we extend our previous results [Mon. N...

2015
Paul R. Elliott Stephen P. Stagon Hanchen Huang David U. Furrer Sergei F. Burlatsky Thomas P. Filburn

This paper reports combined hydrophobicity and mechanical durability through the nanoscale engineering of surfaces in the form of nanorod-polymer composites. Specifically, the hydrophobicity derives from nanoscale features of mechanically hard ZnO nanorods and the mechanical durability derives from the composite structure of a hard ZnO nanorod core and soft polymer shell. Experimental character...

Journal: Geopersia 2013

Salt crystallization is one of the most important weathering agents and may limit the durability of building stones. Salt crystallization induces stresses inside the pores of stones. Consequently, stone durability is closely related to its physical properties and strength. The purpose of this study was to propose a statistical model for estimating stone durability against salt crystallization c...

2017

As defined in BS EN 350-1 [1], natural durability is ‘the inherent resistance of wood to attack by wood destroying organisms’. Eaton and Hale [2] defined natural durability or decay resistance as the ability of the Heartwood of any wood species to resist decay. Normally, natural durability is measured by exposing the wood to biological agents such as termites, beetles, fungi and marine borers (...

Journal: :Stroke 2003
Robert D Ecker Mark A Pichelmann Irene Meissner Fredric B Meyer

BACKGROUND AND PURPOSE We sought to determine the incidence of recurrent stenosis after carotid endarterectomy. METHODS One thousand consecutive carotid endarterectomy patients were followed prospectively. The surgery was performed in a standard fashion. Cerebral protection was provided with intraoperative electroencephalographic monitoring and selective shunting. All arteriotomies were repai...

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