نتایج جستجو برای: مدل ann

تعداد نتایج: 144691  

ژورنال: :علوم دامی 0
محمد رضا عبادی عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان

سورگوم یکی از منابع غذایی انرژی زا در در جیره ی طیور محسوب می شود که به دلیل تنوع در ارقام موجود؛ مقدار انرژی قابل متابولیسم یکی از شاخص های مهم در تعیین کیفیت آن است. اطلاعات مربوط به تعیین tmen، غالبا با استفاده از آزمایش های زیستی امکان پذیر است که مستلزم صرف هزینه و زمان می-باشند. به همین دلیل تخمین tmenاز طریق ترکیبات شیمیایی دانه از اهمیت بالایی برخوردار است. این تخمین ها غالبا از طریق رگ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده شیمی 1392

پاسخ سلول های فیبروبلاست ریه جنین موش آزمایشگاهی به سطح 62 پلیمر زیستی از مشتقات تیروزین با استفاده از توصیف کننده های مولکولی مدل سازی و محاسبه شد. جهت برقراری ارتباط کمی بین پاسخ های سلولی نسبت به این ترکیبات و توصیف کننده های مولکولی انتخاب شده، از روش های مدل سازی رگرسیون خطی چندگانه (mlr) و شبکه عصبی مصنوعی (ann) استفاده شد. ارزیابی این مدل ها با روش های متنوعی از جمله ارزیابی تقاطعی صورت ...

2015
Elizabeth Ann Morgenthien

Count data obtained in developmental toxicity-teratogenicity studies, such as the number of fetal deaths or the number of malformed fetuses per litter, are routinely analyzed by univariate statistical methods. Such methods ignore the dependence among the different outcomes that are measured in the study. Tests of significance based upon the individual outcomes may lead to incorrect conclusions ...

Journal: :Current Biology 2011
Ann-Shyn Chiang

The standfirst of the feature “Shining new light on the brain” (Curr. Biol. (2011), 21, R831–R833) stated that optogenetic control of neurons has only been around for six years. It has now come to our attention that the fundamental concept of targeting sensitivity to light to specific neurons, so that their electrical activity could be controlled optically, was established several years before ...

2011
Nikos Nikoleris

To reduce latency and increase bandwidth to memory, modern microprocessors are designed with deep memory hierarchies including several levels of caches. For such microprocessors, the service time for fetching data from off-chip memory is about two orders of magnitude longer than fetching data from the level-one cache. Consequently, the performance of applications is largely determined by how we...

2008
Nguyen Tien Quang

This paper presents the structure conversion by which from an Ann-category A, we can obtain its reduced Ann-category of the type (R,M) whose structure is a family of five functions k = (ξ, η, α, λ, ρ). Then we will show that each Ann-category is determined by three invariants: 1. The ring Π0(A) of the isomorphic classes of objects of A, 2. Π0(A)-bimodule Π1(A) = AutA(0), 3. The element k̄ ∈ H M ...

2006
Bhavna Gupta

The purpose of this paper is to explore the ability to continually change and obtain new understanding of driving power of Expert Approach. Expert systems are able to advantageously replace human experts in various application areas with the involvement of ANN and Fuzzy Logic. Finally this hybrid system is formed to gain the outstanding performance from a expert system. The basic concept of ANN...

2006
Ann Bradshaw

My original paper suggested that an ethics ofcare which failed to specify how, and about what, to care would be devoid of normative and descriptive content. Bradshaw's approach provides such a specification and is, therefore, not devoid ofsuch content. However, as all ethical approaches suggest something about the 'what' and 'how' of care, they are all 'ethics of care' in this broader sense. Th...

2007
Deborah Ann Caserta

The purpose of this study was to investigate whether juvenile sexual offenders use substances and engage in substance related criminality or if other forms of criminality (e.g. sexual or nonsexual crime) are associated with substance use. Three related quantitative articles were written to execute this project. The first article explored the prevalence of substance use and related crime among s...

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