نتایج جستجو برای: freq
تعداد نتایج: 234 فیلتر نتایج به سال:
The article deals with the peculiarities of adverbial attribution process predicates in sentences-expressions Ukrainian and English languages. Its purpose is to analyze features interaction adjectival adverbs -о, -е // -ly used both languages indicate situations related qualitative quantitative transformations certain objects, phenomena, beings. functional-semantic heterogeneity analyzed units ...
We present a set of CAD tools to design ΣΔ modulators. They use statistical optimization to calculate optimum specifications for the building blocks used in the modulators, and optimum sizes for the components in these blocks. Optimization procedures at the modulator level are equationbased, while procedures at the cell level are simulation-based. The toolset incorporates also an advanced ΣΔ be...
Nowadays, through wall imaging (TWI) is an emerging topic of research in which one of the most important tasks is to minimize the clutter through which detection accuracy can be improved. Clutter in TWI is due to many reasons like wall coupling, antenna coupling, multiple reflections etc. To analyze the clutter reduction techniques, firstly we indigenously assembled a TWI system (i.e., step fre...
Endothelial dysfunction is considered to be an initial step of arteriosclerosis [R. Ross: N. Engl. J. Med. 340 (2004) 115]. For the assessment of the endothelium function, brachial artery flow-mediated dilation (FMD) caused by increased blood flow has been evaluated with ultrasonic diagnostic equipment. In the case of conventional methods, the change in artery diameter caused by FMD is measured...
The authors illustrate how to perform maximum-likelihood estimation in latent c lass ( L C ) analy sis when there are sampling weig hts. The methods are natural extensions of the approac hes proposed b y C log g and E liason ( 1 9 8 7 ) and M ag idson ( 1 9 8 7 ) for dealing with sampling weig hts in the log linear analy sis of freq uenc y tab les. F or the log -linear form of the L C model, th...
روش تحلیل منطقهای به عنوان یکی از مهمترین روشهای برآورد جریان حداقل برای مطالعه خشکسالی در مناطق فاقد آمار کافی به کار می رود. در این تحقیق، تحلیل منطقهای خشکسالی بر اساس روز-های بدون بارندگی با استفاده از داده های 67 ایستگاه سینوپتیک با طول دوره آماری مناسب و پراکنش یکنواخت در سطح کشور ایران انجام شد. پس از مرتب کردن بارندگی روزانه، دورههای بدون بارش تعیین و تعداد روزهای بدون بارش در هر ایس...
دراین پروژه تغییرات کنفورماسیونی ترکیبات پی پیریدین با استفاده از روش rhr و سری پایه 6-31g* محاسبه شد و مورد بررسی قرار گرفت. تغییرات کنفورماسیونی حول سه زاویه دو وجهی d1,d2وd12 انجام گرفت. در نرم افزار گرافیکی gauss view ترکیبات پی پیریدین رسم ،و بهینه سازی شد سپس حول زاویه دو وجهی مشخصی فرمان z-matrix اجرا گردید و مسیر تغییرات کنفورماسیونی هر کدام از ترکیبات مشخص شد. در طول هر مسیر،جهت اثبات ...
The effect of intrinsic membrane protein on the mobility of lipid bilayers has been the subject of many nuclear magnetic resonance (NMR) and electron spin resonance (ESR) investigations [l-6]. Early ESR experiments employing nitroxide probes were interpreted to show that some of the lipid within the membrane is immobilized by the presence of the protein [3]. This result has been subsequently co...
SAS/STAT® procedure FREQ is the place to start when you need to compute measures of rater or test agreement on the classic kappa scale (Cohen 1960), namely, the ratio of the actual improvement over chance to the maximum possible improvement over chance. But when you see the frustrating message "WARNING: AGREE statistics are computed only for tables where the number of rows equals the number of ...
Mental illness visits in Emergency Department (ED) are annually 12 million in United States. There is need to prepare staff with mental issues. The purpose of this paper is using SAS® to examine the impact of an educational initiative on nurses’ attitudes about patients expressing suicidal ideation in the emergency departments 2 rural hospitals. Two rural communities ED were used for this study...
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