نتایج جستجو برای: entropy

تعداد نتایج: 65341  

Arunodaya Raj Mishra Pratibha Rani,

In the fuzzy set theory, information  measures play a paramount role in several areas such as decision making, pattern recognition etc. In this paper, similarity measure based on cosine function and entropy measures based on logarithmic function for IFSs are proposed. Comparisons of proposed similarity and entropy measures with the existing ones are listed. Numerical results limpidly betoken th...

In this study, the analysis of inherent irreversibility of chemical reactive third-grade poiseuille flow of a variable viscosity with convective cooling is investigated. The dissipative heat in a reactive exothermic chemical moves over liquid in an irreversible way and the entropy is produced unceasingly in the system within the fixed walls. The heat convective exchange with the surrounding tem...

A.A. Saboury Elaheh Poorakbar-Esfahani G. Rezaei-Behbahani

A thermodynamic study of copper ions by jack bean urease (JBU) was carried out at two temperatures of 27 and 37?C in Tris buffer (30 mM; pH=7.0) using an isothermal titration calorimetry. There is a set of twelve identical and non-interacting binding sites for copper ions. The intrinsic dissociation equilibrium constant and the molar enthalpy of binding are 285 µM and ?15.2 kJ/mol at 27?C and 3...

Entropy generation of double diffusive natural convection in a three dimensional differentially heated enclosure has been performed numerically. Vertical walls of enclosure are heated differentially and remaining walls are adiabatic. The obtained results were presented via iso-concentration, iso-temperatures, velocity vector projection, particle trajectories, velocity profiles, iso-entropy, loc...

This paper tries to achieve a solution for problems that concern condensation around a flat plate, circular and elliptical tube in by numerical and analytical methods. Also, it calculates entropy production rates. At first, a problem was solved with mesh dynamic and rational assumptions; next it was compared with the numerical solution that the result had acceptable errors. An additional suppor...

2015
Zhenhu Liang Yinghua Wang Xue Sun Duan Li Logan James Voss Jamie W. Sleigh Satoshi Hagihira Xiaoli Li

HIGHLIGHTS ► Twelve entropy indices were systematically compared in monitoring depth of anesthesia and detecting burst suppression.► Renyi permutation entropy performed best in tracking EEG changes associated with different anesthesia states.► Approximate Entropy and Sample Entropy performed best in detecting burst suppression. OBJECTIVE Entropy algorithms have been widely used in analyzing E...

Journal: :international journal of nanoscience and nanotechnology 2014
a. zamzamian

fluids for various industrial applications because of their excellent thermal performance. this study analytically and experimentally examines the effects of nanoparticle dispersion on the entropy generation of eg–al2o3 nanofluid flows through a helical pipe as a heat exchanger under constant wall heat flux thermal boundary condition in laminar regime. it is found that adding nanoparticles impr...

Amir T‎. ‎ Payandeh Najafabadi, ‎Ghobad Barmalzan,

In this paper, we discuss the usual stochastic‎, ‎likelihood ratio, ‎dispersive and convex transform order between two parallel systems with independent heterogeneous extended generalized exponential components. ‎We also establish the usual stochastic order between series systems from two independent heterogeneous extended generalized exponential samples. ‎Finally, ‎we f...

Journal: :پژوهش های جغرافیای طبیعی 0
حسنعلی فرجی سبکبار دانشیار دانشکدة جغرافیا، دانشگاه تهران هادی محمودی میمند کارشناس ارشد gis & rs دانشکدة جغرافیا، دانشگاه تهران سارا نظیف استادیار دانشکده مهندسی عمران، پردیس دانشکدة فنی، دانشگاه تهران رحیم علی عباسپور استادیار دانشکدة نقشه برداری، پردیس دانشکدة فنی، دانشگاه تهران

in the water resources planning and management, rainfall is considered as the main representative factor of region's hydroclimate system. there is a high level of spatial and temporal variability in rainfall events. rain gauges are used for precipitation measurement in different points of the region. due to limitations of rain gauges development, it is impossible to measure the exact distr...

Arkat , Jamal , Babakhani, Masood , Ebrahimi , Babak ,

  Trip distribution is a very important step in transportation modeling context. Many decent researches have been dedicated to the importance of the models for this third step of transportation modeling. Entropy maximization model is one of thermodynamic models and is implemented in modeling various scientific Phenomenons. As the name implies, entropy maximization model tries to find the maximu...

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