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A Spring-Layer Model for a Bi-Layered Plate-Strip with Initial Stress Through Imperfect Contact Interface

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Sound & Vibration 2019年第3期53卷 65-74页

作者： ahmet Dasdemir Department of Mathematics Faculty of Arts and SciencesKastamonu UniversityKastamonu37150Turkey

In this paper,we present our report on the forced vibration of a bi-layered plate-strip with initial stress resting on a rigid foundation induced by a time-harmonic *** investigation is carried out according to the piecewise homogeneous body model with utilizing the three-dimensional linearized theory of elastic waves in initially stressed bodies(TLTEWISB).The materials of the body are chosen to be linearly elastic,homogeneous,and *** interface between the layers is assumed to be imperfect,and is simulated by the spring-layer model.A similar degree of imperfection on the interface is realized in the normal and tangential *** mathematical model for the problem under consideration is designed,and the system of the equations of motion is approximately solved by employing the finite element method(FEM).The numerical results explaining the influence of the parameter that characterizes the degree of corresponding imperfectness on the dynamic response of the plate-strip are *** particular,we demonstrate that the distributions of the normal stress become flat,as the normal-spring parameter increases.

关键词： Incomplete contact initial stress spring-type imperfectness dimensionless frequency forced vibration

Nonlinear dynamical wave structures of Zoomeron equation for population models

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Chinese Physics B 2022年第6期31卷 235-240页

作者： ahmet Bekir Emad H M Zahran Neighbourhood of Akcaglan Imarli StreetNumber:28/426030EskisehirTurkey Departments of Mathematical and Physical Engineering Benha UniversityFaculty of EngineeringShubraEgypt

The nonlinear dynamical exact wave solutions to the non-fractional order and the time-fractional order of the biological population models are achieved for the first time in the framwork of the Paul-Painlevéapproach method(PPAM).When the variables appearing in the exact solutions take specific values,the solitary wave solutions will be easily *** realized results prove the efficiency of this technique.

关键词： (2+1)-dimensional non-fractional Zoomeron equation time-fractional biological population model Paul-Painlevéapproach method traveling wave solutions

The Impact of Sea Level Rise on Roadway Design and Evacuation Routes in Delaware

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Optimal Control of Microgrids with Multi-stage Mixed-integer Nonlinear Programming Guided Q-learning Algorithm

American Journal of Climate Change（美国气候变化期刊） 2024年第1期 69页

作者： Jack Palevich Ardeshir Faghri ahmet Karakurt

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Journal of Modern Power Systems and Clean Energy 2020年第6期8卷 1151-1159页

作者： Yeliz Yoldas Selcuk Goren ahmet Onen the Department of Electrical and Electronics Engineering Abdullah Gul UniversityKayseri38080Turkey the Department of Industrial Engineering Abdullah Gul UniversityKayseri38080Turkey

This paper proposes an energy management system(EMS)for the real-time operation of a pilot stochastic and dynamic microgrid on a university campus in Malta consisting of a diesel generator,photovoltaic panels,and *** objective is to minimize the total daily operation costs,which include the degradation cost of batteries,the cost of energy bought from the main grid,the fuel cost of the diesel generator,and the emission *** optimization problem is modeled as a finite Markov decision process(MDP)by combining network and technical constraints,and Q-learning algorithm is adopted to solve the sequential decision *** proposed algorithm decomposes a multi-stage mixed-integer nonlinear programming(MINLP)problem into a series of single-stage problems so that each subproblem can be solved by using Bellman’s *** prove the effectiveness of the proposed algorithm,three case studies are taken into consideration:(1)minimizing the daily energy cost;(2)minimizing the emission cost;(3)minimizing the daily energy cost and emission cost ***,each case is operated under different battery operation conditions to investigate the battery ***,performance comparisons are carried out with a conventional Qlearning algorithm.

关键词： Cost minimization energy management system microgrid real-time optimization reinforcement learning

Determinant Solutions to a (3+1)-Dimensional Generalized KP Equation with Variable Coefficients

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Chinese Annals of Mathematics,Series B 2012年第5期33卷 641-650页

作者： Alrazi ABDELJABBAR ahmet YILDIRIM Department of Engineering Technology and Mathematics Savannah State University Department of Mathematics and Statistics University of South Florida Department of Mathematics Ege University

1 Introduction Although partial differential equations that govern the motion of solitons are nonlinear, many of them can be put into the bilinear form. Hirota, in 1971, developed an ingenious method to obtain exact solutions to nonlinear partial differential equations in the soliton theory, such as the KdV equation, the Boussinesq equation and the KP equation （see [1-2]）.

关键词： Hirota bilinear form Wronskian solution Grammian solution

Lignin Biosynthesis Studies in Plant Tissue Cultures

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Journal of Integrative Plant Biology 2010年第2期52卷 176-185页

作者： Anna Krknen Sanna Koutaniemi Department of Applied Biology 00014 University of HelsinkiFinland MTT Agrifood Research Finland 92400 RuukkiFinland Department of Applied Chemistry and Microbiology 00014 University of HelsinkiFinland

Lignin, a phenolic polymer abundant in cell walls of certain cell types, has given challenges to scientists studying its structure or biosynthesis. In plants lignified tissues are distributed between other, non-lignified tissues, Characterization of native lignin in the cell wall has been difficult due to the highly cross-linked nature of the wall components. Model systems, like plant tissue cultures with tracheary element differentiation or extracellular lignin formation, have provided useful information related to lignin structure and several aspects of lignin formation. For example, many enzyme activities in the phenylpropanoid pathway have been first identified in tissue cultures. This review focuses on studies where the use of plant tissue cultures has been advantageous in structural and biosynthesis studies of lignin, and discusses the validity of tissue cultures as models for lignin biosynthesis.

关键词： cell Lignin Biosynthesis Studies in Plant Tissue Cultures

A Survey on Belief Propagation Decoding of Polar Codes

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China Communications 2021年第8期18卷 133-168页

作者： ahmet Cagrı Arlı Orhan Gazi Digital Design and Verification Engineering Department Electra ICAnkaraTurkiye Electronic and Communication Engineering Cankaya UniversityAnkaraTurkiye

The increasing data traffic rate of wireless communication systems forces the development of new technologies *** high data rate,extremely low latency and improvement on quality of service are the main subjects of next generation 5G wireless communication systems which will be in the people’s life in the years of *** the newest and first mathematically proven forward error correction code,polar code is one of the best candidates among error correction methods that can be employed for 5G wireless *** aim of this tutorial is to show that belief propagation decoding of polar codes can be a promising forward error correction technique in upcoming 5G ***,we survey the novel approaches to the belief propagation based decoding of polar codes and continue with the studies about the simplification of these ***,early detection and termination methods and concept of scheduling are going to be presented throughout the ***,polar construction algorithms,error types in belief propagation based decoders and hardware implementations are going to be ***,this tutorial proves that the BP based decoding of polar codes has a great potential to be a part of communication standards.

关键词： polar codes belief propagation 5G

An Experimental Study on Thermal Characteristics of Laurie Acid as a Latent Heat Storage Material during Melting Process

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Chinese Journal of Chemical Engineering 2003年第2期11卷 240-243页

作者： ahmet SARI Department of Chemistry Gaziosmanpasa University

The objective of this study was to establish the thermal characteristics of the lauric acid (95% purity) as a latent heat storage material filled in the annulus of vertical concentric double pipe during its melting process,The temperature data were used to determine the thermal characteristics,including the temporal temperature variations and the effects of the mass flow rate and the inlet temperature of the heat transfer fluid on the heat transfer coefficient and the heat charging fraction during the melting process,The results indicated that the time to reach to heat charging fraction of 1.0 could be altered by changing the mass flow rate and the inlet temperature of the heat transfer fluid.

关键词： lauric acid phase change material thermal characteristics melting process

Orientation in Nematic Liquid Crystals Doped with Orange Dyes and Effect of Carbon Nanoparticles

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Chinese Journal of Chemical Physics 2010年第3期23卷 368-372,I0002页

作者： ahmet Alicilar Fatih Akkurt Nihan Kaya 加辛大学工学院化学工程系马尔泰佩安卡拉06570

Some properties of nematic liquid crystal E7 doped with two disperse orange dyes used together and effect of addition of carbon nanoparticles （single walled carbon nanotube or fullerene C60） on them were studied. Two dyes （disperse orange 11 and 13） having high solubility and order parameter were used as co-dopants. A notable increase in order parameter was obtained comparing to that of liquid crystal doped with single dye. When carbon nanoparticles were used as dopant, a decrease in order parameter was observed at low temperatures while it increased at high temperatures. When applied voltage changed, the order parameter abruptly increased in its threshold value and saturated in higher voltages as expected. An appreciable change in textures was not observed with addition of dopants. This addition gave rise to an increase in nematic-isotropic phase transition temperatures compared with that of pure liquid crystal.

关键词： Liquid crystal Disperse orange dye Carbon nanoparticle Order parameter