نتایج جستجو برای: ebdp
تعداد نتایج: 6 فیلتر نتایج به سال:
We study a class of discrete-state Markovian models of evolutionary population dynamics for k types of organisms, called discrete evolutionary birth-death processes (EBDP). The organisms in a model environment interact with each other by playing a certain game. Birth rates for type i organisms at time t are determined by their expected payoff in the game against an opponent chosen randomly from...
Background Advances in medical care for patients with Duchenne muscular dystrophy (DMD) have resulted in improved survival and an increased prevalence of cardiomyopathy. Serial echocardiographic surveillance is recommended to detect early cardiac dysfunction and initiate medical therapy. Clinical anecdote suggests that echocardiographic quality diminishes over time, impeding accurate assessment...
In an effort to improve patient care, there has been a growing trend across the nation and the world to embed the principles of evidence-based dentistry into mainstream care delivery by private practicing dentists. Evidence-based dentistry is an essential tool that is used to improve the quality of care and to reduce the gap between what we know, what is possible, and what we do. An evidence-ba...
پلی بو تا دی ان با گروه هیدروکسیل انتهایی مهمترین و پرکاربردترین بایندر مورد استفاده در پیشرانه های کامپوزیت است. با این وجود ، رزین htpb یک پیش پلیمر خنثی محسوب شده و امتزاج پذیری مطلوبی با نرم کننده های پر انرژی متداول ندارد. در این تحقیق دو نوع نرم کننده پرانرژی نیترات استری، 2- اتیل هگزیل نیترات(2ehn) و 2- اتیل -2- بوتیل- 1،3 دی نیترات پروپان(ebdp)، با نسبت c/-no2 بزرگتر از 4 ،سنتز و با طیف...
Hydroxyl terminated polybutadiene (HTPB) is the most important and versatile binder in composite solid propellant, But the immiscibility of this polymer with traditional energetic plasticizers is a disadvantage limits its application as a binder for compounding of high energy propellant. In this research, two types of energetic plasticizer, 2-ethylhexyl nitrate (2EHN) and 2-ethyl-2-buthyl-1, 3 ...
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