نتایج جستجو برای: basic islamiciranian sources
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Conventional Flux Compression Generators (FCG's) are used to generate high power DC pulses. A new kind of (FCG's) with series capacitance called Capacitive Flux Compression Generator (CFCG) will be introduced and explained in this paper. This new kind is used to generate modulated high power pulses. There are some problems to establish a capacitance in high power and high frequency applications...
xanthan gum is an extracellular polysaccharide produced by various xanthomonas species such as x. campestris . the objective of present study was to investigate the influence of different carbon and nitrogen sources on xanthan gum production by x. campestris . using an experimental response surface methodology (rsm) complemented with a central composite design (ccd), the impact of peptone, lact...
Abstract Motivated by the well known fact that any nonzero solution of fundamental Cauchy functional equation may arbitrarily be prescribed on a Hamel basis, we deal with following problem: given $$\begin{aligned} E_1(\varphi ) = E_2(\varphi \end{aligned}$$ E <mml:mn...
خواص نوری مواد لیفی شکل تابع ظرافت، ضریب شکست و خواص نوری مواد افزودنی می باشد. هدف این تحقیق مطالعه خواص نوری نانو الیاف سفید، رنگی و رنگرزی شده پلی اکریلو نیتریل الکتروریسی شده توسط سه رنگزای بازیک basic red 46، basic g-yellow 28 وbasic blue 41 می باشد. ابتدا نانو الیاف الکتروریسی شده سفید و رنگرزی شده در سه محدوده ی قطری و نانو الیاف رنگی تهیه شد و سپس مورفولوژی و قطر نانو الیاف تهیه شده توس...
As a first step toward determining the source of variability in the visually evoked response (VER) between subjects, we have examined the relationships between the VER and the alpha-rhythm. This was done by comparing the VER's to photic stimuli delivered at positive and negative peaks of the alpha-rhythm (alpha-synchronized stimuli) with VER's to flashes delivered at a fixed interval, unsynchro...
Different data sources were used to examine hypothesized relations among neighborhood-, family-, and individual-level variables, and perceptions of neighborhood collective efficacy. Data were from 1,105 individuals (56% female, 42% African American, and 58% White) nested within 55 neighborhoods and 392 families, analyzed within a multilevel design using a 3-level model. At the neighborhood leve...
BACKGROUND Eight regional public health observatories were launched in England in February 2000, to strengthen the availability and use of health information and to support efforts to tackle health inequalities at local level. This qualitative study was carried out by the Merseyside and Cheshire Zone of the North West Public Health Observatory to assess the needs of local users and producers of...
Social media analysis has shown tremendous potential to understand public's opinion on a wide variety of topics. In this paper, we have mined Twitter to understand the public's perception of the Internet of Things (IoT). We first generated the discussion trends of the IoT from multiple Twitter data sources and validated these trends with Google Trends. We then performed sentiment analysis to ga...
Existing semantic integration approaches to coordinating data do not meet the needs of real world scenarios which contain fine-grained relationships between data sources. In this paper, we describe extensions to the popular GLAV mapping formalism to express such relationships. We outline methods for solving the data coordination problem using these mappings, and discuss future research problems...
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