Pacific Science Review A: Natural Science and Engineering最新文献_第6页

Application of optical fibres with reduced normalized frequency for SPR-based refractometry 降低归一化频率的光纤在基于spr的折射仪中的应用

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-07-01 DOI: 10.1016/j.psra.2015.11.002

Anton V. Dyshlyuk , Oleg B. Vitrik , Yuri N. Kulchin

引用次数: 1

Accelerating PID controller development with rapid prototyping and model-based design 通过快速原型和基于模型的设计加速PID控制器的开发

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-07-01 DOI: 10.1016/j.psra.2015.11.003

Yue Liu , Yanping Wang , Zhiping Yan

{"title":"Accelerating PID controller development with rapid prototyping and model-based design","authors":"Yue Liu , Yanping Wang , Zhiping Yan","doi":"10.1016/j.psra.2015.11.003","DOIUrl":"10.1016/j.psra.2015.11.003","url":null,"abstract":"<div>The development of digital PID controllers for adjustable boost DC–DC converters is discussed in this paper. The primary advantages of using digital signal processors over analogue circuits are higher immunity to environmental changes (such as temperature and ageing), increased flexibility by changing the software, more advanced control techniques, and a reduced number of components. Many engineers, scientists, and researchers rely only on the efficiency of MATLAB language to explore designs, but for system implementation, they were forced to translate high-level MATLAB algorithms into the lower-level language of C. Therefore, a type of advanced method of DSP software development is introduced. The Real-Time Workshop toolbox enables exploration and implementation to be brought together in the MATLAB platform. MATLAB is a technical computing language that can automatically generate readable, compact, and fast C code directly from its algorithms, which could be compiled using the Texas Instruments (TI) Code Composer Studio (CCS) I integrated development environment (IDE). With this capability, developers can maintain a single design source and use one language in one development environment from concept to implementation. This model-based development method has a unique value for rapid prototyping.</div>","PeriodicalId":100999,"journal":{"name":"Pacific Science Review A: Natural Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.psra.2015.11.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91532379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Multi-criterion multi-attribute decision-making for an EOQ model in a hesitant fuzzy environment 犹豫模糊环境下EOQ模型的多准则多属性决策

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-07-01 DOI: 10.1016/j.psra.2015.11.006

Sujit Kumar De , Shib Sankar Sana

引用次数: 15

Bragg waveguide with an antiresonance intermediate layer 具有抗共振中间层的布拉格波导

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-07-01 DOI: 10.1016/j.psra.2015.12.002

Yuriy N. Kulchin, Yuriy A. Zinin, Vladislav A. Kolchinskiy

引用次数: 3

The theory of heterogeneous dielectric nanostructures with non-typical low-threshold nonlinearity 非典型低阈值非线性非均质介质纳米结构理论

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-07-01 DOI: 10.1016/j.psra.2015.12.005

Vladimir P. Dzyuba, Yurii N. Kulchin, Andrey V. Amosov

引用次数: 0

Excitonic quasimolecules in quasi-zero-dimensional nanogeterostructures: Theory 准零维纳米结构中的激子准分子:理论

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-01-01 DOI: 10.1016/j.psra.2015.11.001

Sergey I. Pokutnyi , Yury N. Kulchin , Vladimir P. Dzyuba

引用次数: 2

The dependence of the fluorescence spectrum of phytoplankton on external influences 浮游植物荧光光谱对外界影响的依赖性

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-01-01 DOI: 10.1016/j.psra.2015.11.004

Alexander Yu. Popik , Evgeniy L. Gamayunov

{"title":"The dependence of the fluorescence spectrum of phytoplankton on external influences","authors":"Alexander Yu. Popik , Evgeniy L. Gamayunov","doi":"10.1016/j.psra.2015.11.004","DOIUrl":"10.1016/j.psra.2015.11.004","url":null,"abstract":"<div>The concentration of phytoplankton is often used to assess the ecological status of water bodies; it is determined by the fluorescence intensity of chlorophyll-a, which is located in microalgae cells. Investigators do not usually take into account the effect of the medium on the fluorescence intensity when determining the concentration of phytoplankton. This article describes the use of a fibre-optic spectrometer developed by the authors to identify the relationship between the fluorescence of the chlorophyll-a in phytoplankton cells and under environmental conditions, such as temperature and illumination. A mathematical model is used to calculate the chlorophyll-a concentration based on fluorescence measurements and takes the temperature and amount of light into account. Using the resulting proportionality coefficient can reduce the error in the chlorophyll-a concentration determined using fluorescence methods by a factor of two. In this article the, authors describe the results of applying the method they developed to performance monitoring in the waters of the Gulf of Peter the Great in September and October 2013.</div>","PeriodicalId":100999,"journal":{"name":"Pacific Science Review A: Natural Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.psra.2015.11.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77395976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Generalised multi-fuzzy soft set and its application in decision making 广义多模糊软集及其在决策中的应用

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-01-01 DOI: 10.1016/j.psra.2015.12.006

Asit Dey, Madhumangal Pal

引用次数: 27

An adaptive fibre-optic interferometer with low cutoff frequency 一种低截止频率自适应光纤干涉仪

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-01-01 DOI: 10.1016/j.psra.2015.11.008

Oleg T. Kamenev , Vladislav A. Kolchinskiy , Yuri S. Petrov , Roman V. Romashko , Yuri N. Kulchin , Leonid P. Yatsenko , Vladimir M. Khodakovskyy

引用次数: 1

On some operations and density of m-polar fuzzy graphs 关于m极模糊图的一些运算和密度

Pacific Science Review A: Natural Science and Engineering Pub Date : 2015-01-01 DOI: 10.1016/j.psra.2015.12.001

Ganesh Ghorai, Madhumangal Pal

{"title":"On some operations and density of m-polar fuzzy graphs","authors":"Ganesh Ghorai, Madhumangal Pal","doi":"10.1016/j.psra.2015.12.001","DOIUrl":"10.1016/j.psra.2015.12.001","url":null,"abstract":"<div>The theoretical concepts of graphs are highly utilized by computer science applications, social sciences, and medical sciences, especially in computer science for applications such as data mining, image segmentation, clustering, image capturing, and networking. Fuzzy graphs, bipolar fuzzy graphs and the recently developed m-polar fuzzy graphs are growing research topics because they are generalizations of graphs (crisp). In this paper, three new operations, i.e., direct product, semi-strong product and strong product, are defined on m-polar fuzzy graphs. It is proved that any of the products of m-polar fuzzy graphs are again an m-polar fuzzy graph. Sufficient conditions are established for each to be strong, and it is proved that the strong product of two complete m-polar fuzzy graphs is complete. If any of the products of two m-polar fuzzy graphs G1 and G2 are strong, then at least G1 or G2 must be strong. Moreover, the density of an m-polar fuzzy graph is defined, the notion of balanced m-polar fuzzy graph is studied, and necessary and sufficient conditions for the preceding products of two m-polar fuzzy balanced graphs to be balanced are established. Finally, the concept of product m-polar fuzzy graph is introduced, and it is shown that every product m-polar fuzzy graph is an m-polar fuzzy graph. Some operations, like union, direct product, and ring sum are defined to construct new product m-polar fuzzy graphs.</div>","PeriodicalId":100999,"journal":{"name":"Pacific Science Review A: Natural Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.psra.2015.12.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73452033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 60