نتایج جستجو برای: statistical factorial design

تعداد نتایج: 1302125  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎this study investigated the effect of prior knowledge on the listening comprehension performance of fl learners. twenty students, male and female, drawn from the two intact groups of the senior and junior english language and literature majors were chosen as the participants of this study . the two groups were then randomly assigned into the experimental and control group. the experimental gr...

2002
Kenny Q. Ye KENNY YE

State University of New York at Stony Brook 2A two-level factorial design can be uniquely represented by a polynomial indicator function. Therefore, properties of factorial designs can be studied through their indicator functions. This paper shows that indicator function is an effective tool in studying two-level factorial designs. Indicator function is used to generalize aberration criterion o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی 1392

اساس کار تکنولوژی پیل سوختی میکروبی به عنوان یک منبع انرژی تجدید پذیر، استفاده از متابولیسم میکرو ارگانیسم های به کار رفته در آند پیل می باشد که با مصرف سابستریت تولید جریان الکتریسیته می کنند. هزینه زیاد عملیاتی پیل های سوختی میکروبی در مقایسه با توان تولیدی مانعی بزرگ در مسیر استفاده آن در مقیاس صنعتی می باشد. در این تحقیق اقتصادی کردن پیل های سوختی میکروبی، شامل بهینه سازی فاکتور های عملیاتی...

Journal: :international journal of environmental research 2011
b. mesci s. elevli

recently full factorial design approach has been used to assess the recycling potential of a given waste. the objective of this study is to identify the significant factors and interactions involved in maximizing compressive strength of concrete when chromium waste is used as admixture. in this respect, experimental factors at two levels, which are admixture type (chromite/ chromite+ superplas...

2007
Pritam Ranjan

Two-level factorial and fractional factorial designs have played a prominent role in the theory and practice of experimental design. Though commonly used in industrial experiments to identify the significant effects, it is often undesirable to perform the trials of a factorial design (or, fractional factorial design) in a completely random order. Instead, restrictions are imposed on the randomi...

Journal: :European journal of orthodontics 2014
Nikolaos Pandis Tanya Walsh Argy Polychronopoulou Christos Katsaros Theodore Eliades

Factorial designs for clinical trials are often encountered in medical, dental, and orthodontic research. Factorial designs assess two or more interventions simultaneously and the main advantage of this design is its efficiency in terms of sample size as more than one intervention may be assessed on the same participants. However, the factorial design is efficient only under the assumption of n...

Journal: :iranian journal of pharmaceutical research 0
j patel d patel j raval

the purpose of this research was to formulate and systemically evaluate in-vitro and in-vivo performances of mucoadhesive propranolol hydrochloride microspheres for its potential use in the treatment of hypertension, myocardial infraction and cardiac arrhythmias. propranolol hydrochloride mucoadhesive microspheres, containing carbopol-934p as mucoadhesive polymer and ethyl cellulose as carrier ...

Journal: :international journal of automotive engineering 0
r. das dhupa kumar

turning of hardened steels using a single point cutting tool has replaced the cylindrical grinding now as it offers attractive benefits in terms of lower equipment costs, shorter set up time, fewer process setups, higher material removal rate, better surface quality and elimination of cutting fluids compared to cylindrical grinding. in order to obtain desired surface quality by machining, prope...

2016
Larissa de Souza Kirsch Ana Júlia Porto de Macedo Maria Francisca Simas Teixeira

Edible mushroom species are considered as an adequate source of food in a healthy diet due to high content of protein, fiber, vitamins, and a variety of minerals. The representatives of Pleurotus genus are characterized by distinct gastronomic, nutritional, and medicinal properties among the edible mushrooms commercialized worldwide. In the present study, the growth of mycelial biomass of Pleur...

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