نتایج جستجو برای: shanon entropy

تعداد نتایج: 65422  

2003
V. S. Ramachandran

The commentaries by Shanon (2003) and Pribram (2003) on our original article (Ramachandran & Hubbard, 2001) are stimulating and make a valuable contribution to the knowledge and thinking about synaesthesia, and indeed the mind in general. We were gratified to see the overall level of agreement with our general framework. For example, both of the authors endorse our connection between the percep...

Journal: :پژوهش های زراعی ایران 0
مریم جهانی کندری علیرضا کوچکی مهدی نصیری محلاتی پرویز رضوانی مقدم

in order to investigate diversity of weed species in wheat fields in eastern parts of mashhad, an investigation was made in the year 2009. wheat fields was classified based on the acreage from 3-5 ha, 5-10 ha and higher than 10 ha. sampling was made randomly by a quadrate 0.5×0.5 in 9 fields of each group from jointing to heading of wheat in tow separate stages. type and total number of weeds w...

2000
Homayoun NIKOOKAR Ramjee PRASAD

In this paper the novel method of “weighted OFDM” is addressed. Different types of weighting factors (including Rectangular, Bartlett, Gaussian, Raised cosine, Half-sin and Shanon) are considered. The impact of weighting of OFDM on the peak-to-average power ratio (PAPR) is investigated by means of simulation and is compared for the above mentioned weighting factors. Results show that by weighti...

Journal: :Computers, materials & continua 2023

The coronavirus (COVID19), also known as the novel coronavirus, first appeared in December 2019 Wuhan, China. After that, it quickly spread throughout world and became a disease. It has significantly impacted our everyday lives, national international economies, public health. However, early diagnosis is critical for prompt treatment reducing trauma healthcare system. Clinical radiologists prim...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

Journal: :علوم دامی 0
زهرا طهماسبی کارشناس ارشد مهندسی بیوتکنولوژی کشاورزی دانشگاه پیام نور واحد تهران شرق غلامحسین طهماسبی استاد، موسسه تحقیقات علوم دامی کشور رحیم عصفوری استادیار موسسه تحقیقات بیوتکنولوژی کشور علیرضا ترنگ استادیار موسسه تحقیقات بیوتکنولوژی کشور محمد بابایی مربی موسسه تحقیقات علوم دامی کشور رامین صیقلانی مربی موسسه تحقیقات بیوتکنولوژی کشور سیدمحمد رسولی نژاد موسوی

honeybee is a pollinator that has prominent role in agriculture products and nourishment for human. so, the most number of studies like genetic improvement were done on honeybee. recent advances in knowledge of molecular genetics of bee emphasize the potential for using genetic markers to select favored traits. this research was done to determine polymorphism of loci of first foraging age (aff)...

Journal: :bulletin of the iranian mathematical society 2012
mehdi rahimi abdolhamid riazi

in this paper we introduce the concept of entropy operator for continuous systems of finite topological entropy. it is shown that it generates the kolmogorov entropy as a special case. if $phi$ is invertible then the entropy operator is bounded with the topological entropy of $phi$ as its norm.

Journal: :CoRR 2017
Vinod Patidar Narendra K. Pareek G. Purohit

A During last two decades, there has been a prolific growth in the chaos based image encryption algorithms. Up to an extent these algorithms have been able to provide an alternative to exchange large media files (images and videos) over the networks in a secure way. However, there have been some issues with the implementation of chaos based image ciphers in practice. One of them is reduced/smal...

Journal: :international journal of energy and environmental engineering 2011
pierfrancesco palazzo

the mechanical aspect of entropy-exergy relationship, together with the thermal aspect usually consid-ered, leads to an extended formulation of physical exergy based on both maximum useful work and maximum useful heat that are the outcome of available energy of a thermodynamic system. this approach suggests that a mechanical entropy can be studied, in addition to the already used thermal entrop...

Journal: :مجله علوم آماری 0
آرزو حبیبی راد arezoo habibi rad department of statistics, ferdowsi university of mashhad, mashhad, iran.گروه آمار، دانشگاه فردوسی مشهد ناصررضا ارقامی naser reza arghami department of statistics, ferdowsi university of mashhad, mashhad, iran.گروه آمار، دانشگاه فردوسی مشهد

the estimate of entropy (sample entropy), has been introduced by vasicek (1976), for the first time. in this paper, we provide an estimate of entropy of order statistics, that is the extention of the entropy estimate. then we present an application of the entropy estimate of order statistics as a test statistic for symmetry of distribution versus skewness. the proposed test has been compared wi...

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