نتایج جستجو برای: mdpe
تعداد نتایج: 34 فیلتر نتایج به سال:
فرآیند قالبگیری دورانی یکی از مهمترین روش ها برای تولید قطعات توخالی و مخازن پلاستیکی با ضخامت یکنواخت می باشد. پلی اتیلن با چگالی متوسط (mdpe) به طور گسترده ای برای تولید محصولات به روش قالبگیری دورانی استفاده می شود. از معایب قطعات تولید شده به روش قالبگیری دورانی، محدودیت در خواص مکانیکی و بازیابی حرارتی می باشد. در این پژوهش، اثر افزودن نانوذرات معدنی کربنات کلسیم و عامل کراسلینک (پروکساید)...
Refinement via annotations is a common practice in Model-Driven Engineering (MDE). For instance, in the case of our Model-Driven Performance Engineering (MDPE) architecture, we are required to annotate different types of process models with performance objectives, constraints and other information. This is used to enable domain experts, such as business analysts, to benefit from an automated pe...
Using the teaching games for understanding model (TGfU) as an intervention strategy, this study intended to establish whether it could affect moral disengagement (MD) levels of students / participants with special educational needs and disabilities; (SEND) by enhancing their positive behaviours in physical education (PE). The focused on male (n = 12) aged 13-14 years old who all had a range dif...
In this article, the role of nano-size calcium carbonate in penetration resistance of medium- density polyethylene (PE) was investigated through experiments. In order to study the penetration resistance of PE and its nanocomposites, perforation test was carried out. The results of tests showed that penetration resistance depends strongly on calcium carbonate amount. As a matter of fact, additi...
In this work, the role of comonomer content of 1-hexene-medium density polyethylene (MDPE) copolymer, synthesized using Phillips catalyst, on thermal behavior parameters such as: crystallization, melting temperature and thermal degradation was investigated in detail. The copolymer was fractionated to homogenous short-chain branching (SCB) fractions by "preparative temperature rising elution fra...
BACKGROUND It has repeatedly been shown that female patients wake up faster from propofol anaesthesia than male patients. The reason for this is not clear. It is possible that female patients have a more rapid decline in plasma propofol concentration after termination of an infusion, or there could be gender differences in the sensitivity to propofol, making women wake up at higher concentratio...
The Canterbury Earthquake Sequence (CES) adversely impacted built, economic and social environments. This included widespread physical damage to the water supply pipe network in Christchurch, resulting long service disruptions. transient permanent ground deformations generated by earthquakes CES caused a range of damage, particularly MW 6.2 22 February 2011 relatively less damaging 6.0 13 June ...
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