Advances in Systems Science and Applications最新文献_第8页

The Relaxation of Complementary Slackness Conditions as a Regularization Method for Optimal Control Problems 互补松弛条件的松弛作为最优控制问题的正则化方法

Advances in Systems Science and Applications Pub Date : 2019-07-01 DOI: 10.25728/ASSA.2019.19.2.708

N. Pilnik, Igor Pospelov, Stanislav Radionov

引用次数: 3

Technology of Quality and Reliability of Complex Technical Systems Characteristics Stage-by-stage Improvement on Examples of Rocket-Space Technology Objects 复杂技术系统质量与可靠性特征的逐步改进技术——以火箭航天技术对象为例

Advances in Systems Science and Applications Pub Date : 2019-07-01 DOI: 10.25728/ASSA.2019.19.2.758

V. Ivanov, V. K. Zawadzkii, E. B. Kablova, L. G. Klenovaya

引用次数: 0

Models Of Uncertain-Random Programming 不确定随机规划模型

Advances in Systems Science and Applications Pub Date : 2019-07-01 DOI: 10.25728/ASSA.2019.19.2.727

Georgy Veresnikov, L. Pankova, V. Pronina

{"title":"Models Of Uncertain-Random Programming","authors":"Georgy Veresnikov, L. Pankova, V. Pronina","doi":"10.25728/ASSA.2019.19.2.727","DOIUrl":"https://doi.org/10.25728/ASSA.2019.19.2.727","url":null,"abstract":"The article proposes the models of optimization with constraints under conditions of parametric mixed uncertainty ‒ aleatory and epistemic. We model parameters with aleatory uncertainty by random values with probability distribution functions obtained from statistical data. We model parameters with epistemic uncertainty by uncertain values introduced in the uncertainty theory of Liu B. Experts define the uncertainty distribution functions. We model a function of random and uncertain parameters by uncertain-random value, interpreted as epistemic value parameterized by random values. Optimization criteria (deterministic duplicates of objective functions) are combination of different characteristics of random and uncertain values, which allows both to average objective functions and to take into account risks or reliability arising from the variability of random and uncertain values. Using the proposed models of uncertain-random programming, we formalized as a two-criterion optimization problem with constraints and solved the task of preliminary aerodynamic design in the conditions of parametric mixed uncertainty ‒ calculation of aircraft weight parameters. The uncertainty theory makes possible under certain conditions (for sufficiently wide class of functions) to obtain analytical expressions for characteristics of uncertain functions, that significantly reduces computational costs. To calculate weight parameters of aircraft, we use multicriteria genetic algorithm and statistical modeling. We investigate the dependence of the optimization result on the given probability levels for random values and the expert belief degree for epistemic values reflecting the reliability of the obtained solution. As result of applying the proposed models for calculating the weight parameters of the aircraft, we obtained the Pareto fronts shown in the figures.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"19 1","pages":"8-22"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44248753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Machine Learning Algorithms for Automatic Anomalies Detection in Data Storage Systems Operation 用于数据存储系统操作中异常自动检测的机器学习算法

Advances in Systems Science and Applications Pub Date : 2019-07-01 DOI: 10.25728/ASSA.2019.19.2.725

M. Hushchyn, A. Sapronov, A. Ustyuzhanin

引用次数: 3

Potential scales of structural transformation of the Russian electric power system based on low-carbon distributed generation 基于低碳分布式发电的俄罗斯电力系统结构转型的潜在规模

Advances in Systems Science and Applications Pub Date : 2019-07-01 DOI: 10.25728/ASSA.2019.19.2.709

A. Khorshev, I. Erokhina, F. Veselov

引用次数: 1

Identification of nonlinear systems having hard function 具有硬函数的非线性系统辨识

Advances in Systems Science and Applications Pub Date : 2019-04-15 DOI: 10.25728/ASSA.2019.19.1.632

A. Brouri, Tarik Rabyi, A. Ouannou

引用次数: 4

Activity of Russian Companies in Regional Industrial Value-Added Chains 俄罗斯企业在区域工业增值链中的活动

Advances in Systems Science and Applications Pub Date : 2019-04-15 DOI: 10.25728/ASSA.2019.19.1.649

V. Chernova, I. Andronova, E. Degtereva, A. Zobov, V. Starostin

引用次数: 2

Multiagent Model of People Evacuation from Premises while Emergency 紧急情况下人员疏散的多智能体模型

Advances in Systems Science and Applications Pub Date : 2019-04-15 DOI: 10.25728/ASSA.2019.19.1.558

A. Samartsev, V. Ivaschenko, A. Rezchikov, V. Kushnikov, L. Filimonyuk, A. Bogomolov

引用次数: 1

Measuring the Opinion of Textile Industries of Punjab (India) towards the Reliability of their Connected Power Systems and its Effects on the Industrial Operations 测量旁遮普(印度)纺织工业对其连接电力系统可靠性的意见及其对工业运营的影响

Advances in Systems Science and Applications Pub Date : 2019-04-15 DOI: 10.25728/ASSA.2019.19.1.613

Harjit Singh Mangat, Harpuneet Singh

{"title":"Measuring the Opinion of Textile Industries of Punjab (India) towards the Reliability of their Connected Power Systems and its Effects on the Industrial Operations","authors":"Harjit Singh Mangat, Harpuneet Singh","doi":"10.25728/ASSA.2019.19.1.613","DOIUrl":"https://doi.org/10.25728/ASSA.2019.19.1.613","url":null,"abstract":"The purpose of this research was to measure the opinion of textile industries of Punjab (India) towards the reliability of their connected power systems of the sole public utility company - Punjab State Power Corporation Limited considering the period from 2010 to 2014. Out of the 400 randomly selected, 148 registered textile industrial units from Central, North and South Punjab, respectively, were responded successfully by conducting the interviews using a questionnaire schedule and dropping questionnaires with the responders, over a period of two years from April 2015-April 2017 which revealed that majority of the industries from the whole Punjab was discontented towards the occurrence of planned outages, unplanned outages and load shedding, work efficiency of staff, condition of infrastructure and tariff structure except the limited number of units from Central Punjab that have shown agreement towards the different aspects of power system reliability. An internal consistency and intra-rater reliability using Cronbach’s alpha and Krippendorff’s Alpha, respectively, calculated, was found very decent. A Kruskal Wallis test was applied and mean rank of Central Punjab was found considerably higher followed by South and North Punjab for the majority of the variables. Dunn’s Bonferroni Post Hoc exposed that a Central Punjab is significantly different from both North and South Punjab but no statistical difference was found between the North and South Punjab. A Kruskal Wallis test statistic (H) and Mann Whitney test statistics (U) was used to calculate the overall effect sizes and the effect sizes between the groups for all the dependent variables, respectively. Out of the forty variables, thirty-three has shown the statistically significant difference from which twenty-eight, three and five were found in the zone of large, intermediate and small effect size, respectively.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"19 1","pages":"75-97"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43941369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating environmental impacts of photovoltaic technologies using Data Envelopment Analysis 利用数据包络分析评估光伏技术的环境影响

Advances in Systems Science and Applications Pub Date : 2019-04-15 DOI: 10.25728/ASSA.2019.19.1.651

S. Ratner, A. Lychev

{"title":"Evaluating environmental impacts of photovoltaic technologies using Data Envelopment Analysis","authors":"S. Ratner, A. Lychev","doi":"10.25728/ASSA.2019.19.1.651","DOIUrl":"https://doi.org/10.25728/ASSA.2019.19.1.651","url":null,"abstract":"This study contributes to the literature by proposing a new method of complex evaluation of multiple life cycle environmental impacts of different PV technologies based on the Data Envelopment Analysis (DEA). The main advantage of DEA as a non-parametric technique is that it does not require prior knowledge of underlying production functions. An empirical production technology frontier is estimated based on best-practice boundary of the input-output relationship. DEA evaluates comparative or relative efficiency, which means the measurement with reference to some set of units we are comparing with each other. The proposed approach allows to aggregate disparate quantitative estimates of individual negative environmental effects from the literature and special databases in a transparent and easily understandable index or coefficient of ecology efficiency. The evaluation of environmental effects is performed on data from the EcoInvent Database. The results of this study clearly show that from an environmental point of view it is more practical to prefer technologies, which are less resource and energy intensive in manufacturing and upstream activities. As of right now, this requirement is met by thin-film technologies (amorphous silicon, cadmium telluride, and copper-indium-diselenide); however, their ecologic efficiency evaluation may change as we obtain more data on the final stages of the lifecycle for PV modules of various types. Based on results of this study a number of opportunities for improving existing government incentives and rationalizing the design of state programs under elaboration can be identified.","PeriodicalId":39095,"journal":{"name":"Advances in Systems Science and Applications","volume":"19 1","pages":"12-30"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43179483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8