Science Bulletin of the Novosibirsk State Technical University最新文献_第9页

Measurement of power quality in the power supply system with LED lightning devices 采用LED防雷装置供电系统中电能质量的测量

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2019-03-20 DOI: 10.17212/1814-1196-2019-1-197-212

V. Kuzmenko, Sergei Solenyj, V. Shishlakov, O. Solenaja

引用次数: 1

Modeling of power supply system operating modes with distributed generation plants and a powerful asynchronous load 具有分布式发电厂和强大异步负荷的供电系统运行模式建模

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-101-114

Yu. N. Bulatov, A. Kryukov, V. Nguen

引用次数: 0

On the possibilities of automatic text processing for constructing the ontology of requirements 论构建需求本体的自动文本处理的可能性

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-27-46

T. Avdeenko, M. Murtazina, M. Grif

引用次数: 0

Algorithms for estimating labour productivity prediction based on regression and dynamic models 基于回归和动态模型的劳动生产率预测估计算法

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-7-26

A. Abdenov, Aliya Abdenova, Ayagoz Mukhanova

{"title":"Algorithms for estimating labour productivity prediction based on regression and dynamic models","authors":"A. Abdenov, Aliya Abdenova, Ayagoz Mukhanova","doi":"10.17212/1814-1196-2018-4-7-26","DOIUrl":"https://doi.org/10.17212/1814-1196-2018-4-7-26","url":null,"abstract":"Gross domestic product is one of the most important indicators of the national accounts system. It characterizes the final result of productive activity of domestic economic units and measures the value of goods and services produced by these units in the country for a certain period of time for final use. The paper considers an algorithm for constructing a linear stationary model in terms of the state space for describing behaviour and predicting labour productivity state depending on the capitallabour ratio and labour costs, instead of describing the object given by the three-factor non-linear Cobb-Douglas model. In addition to a general construction of a dynamic model the algorithm includes the description of the procedures in the form of recursive formulae allowing calculation of variance magnitudes for the dynamic noise, the measuring system noise and the initial state of the investigated object behaviour on the basis of statistical time series data related to labour productivity. An example shows that the proposed model provides more efficient prediction estimates of labour productivity values compared with the prediction estimates calculated using a three-factor non-linear regression model. The numerical calculations of the accuracy of prediction estimates were made using an absolute percentage error and the Teil formula for both the three-factor Cobb-Douglas model and the model in the form of the state space. The calculations showed more accurate prediction estimates and more adequate filtering estimates for the model in terms of the state space.","PeriodicalId":214095,"journal":{"name":"Science Bulletin of the Novosibirsk State Technical University","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134304633","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

A combined vector method of finite and boundary elements for simulating electromagnetic filed propagation considering an eddy current model 考虑涡流模型的电磁场传播模拟的有限元和边界元组合矢量法

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-79-90

Sergei Siwak, I. Stupakov, Natalia Kondtatieva

引用次数: 2

An automated system of network and system administration of Windows and Linux family operating systems Windows和Linux家族操作系统的网络和系统管理自动化系统

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-47-58

E. Basinya

{"title":"An automated system of network and system administration of Windows and Linux family operating systems","authors":"E. Basinya","doi":"10.17212/1814-1196-2018-4-47-58","DOIUrl":"https://doi.org/10.17212/1814-1196-2018-4-47-58","url":null,"abstract":"Today, the automation of technological and business processes of an enterprise is one of the key trends in the development of information and communication technologies. As part of the development of management methodology and organization of services in this area, Helpdesk and ServiceDesk user support systems are becoming increasingly popular. However, most existing solutions do not consider the vulnerabilities of the TCP/IP protocol stack as well as the imperfection of software and operating systems, which often complicates the activities of information technology departments by loading them with routine work. This article presents the development of an automated system of network and system administration of Windows and Linux family operating systems, which includes the Helpdesk and ServiceDesk solutions functionality. The signature method of the system operation with the identification of the correlation of events is reviewed. An original approach to creating a knowledge base of the system is described. The solution was implemented using a platform for automated deployment and management of applications in a virtualization environment, which provides an additional level of reliability and fault tolerance. An algorithm for checking third-party software solutions for suspicious malicious activity is proposed, providing a qualitative analysis of the object being investigated: whether functions undeclared by the developer are present, whether any information is being sent to third parties, etc. A comprehensive approach to the management of the enterprise network infrastructure is presented. In order to ensure information security of network communications, encapsulated secure virtual communication channels were used. To ensure the confidentiality of data on the client side, the AES-256 encryption algorithm was used. The proposed approaches are recommended for corporate computer networks which include ten or more hosts operating on the basis of the TCP / IP protocol stack and Windows / Linux family operating systems.","PeriodicalId":214095,"journal":{"name":"Science Bulletin of the Novosibirsk State Technical University","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127636992","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

A study of equivalence of influences of varying thickness and conductivity in 3D-processing of airborne electromagnetic data in complex media 复杂介质中航空电磁数据三维处理中不同厚度和电导率影响的等效性研究

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-59-78

N. Kondratyev, D. S. Kiselev, D. Vagin, M. Persova, Y. Soloveichik

{"title":"A study of equivalence of influences of varying thickness and conductivity in 3D-processing of airborne electromagnetic data in complex media","authors":"N. Kondratyev, D. S. Kiselev, D. Vagin, M. Persova, Y. Soloveichik","doi":"10.17212/1814-1196-2018-4-59-78","DOIUrl":"https://doi.org/10.17212/1814-1196-2018-4-59-78","url":null,"abstract":"The paper is devoted to the problem of processing the airborne electromagnetic (AEM) data with a view to developing recommendations on parameterization of a geological medium for carrying out the geometric 3D-inversion of airborne data. The study is performed with the use of finite element 3D-modeling of transient EM fields induced by the helicopter AEM system in complex media followed by the 3D-inversion of airborne synthesized data. The geoelectrical models chosen for investigation are taken as typical of this class of airborne EM surveys: the rugged topography and the conductive inhomogeneous top layer, which overlaps the low-resistive layer containing target conductive bodies. It is shown that, if the variations of the top layer thickness do not exceed 30...35 m in performing 3D-inversion, as a minimum, at its first stage, the top layer can be recovered as equivalent with constant (but recovered) thickness, i.e. when the top layer is parameterized in the inverse problem, in the vector of the unknowns we can include only lateral borders of 3D-inhomogeneities, their conductivity, and layer thickness described by one parameter. It is also shown that, if, in the medium under study, the variations of the top layer thickness are more significant, its bottom border should be recovered in more detail, because otherwise the target objects located in the second layer with the responses of about 15...20 % of the measured signals can be missed, while, in the case of recovering the top layer parameters more accurately, these target objects can be discovered quite confidently.","PeriodicalId":214095,"journal":{"name":"Science Bulletin of the Novosibirsk State Technical University","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124944561","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

Stability of optimal parameters of CHPPs with the zoning of electrical and temperature charts 电学图和温度图分区下热电联产电站最优参数的稳定性

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-115-127

P. Shchinnikov, D. Sinelnikov

引用次数: 1

The use of Petri nets for the software product design to analyze data using neural networks 利用Petri网进行软件产品设计，利用神经网络对数据进行分析

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-12-20 DOI: 10.17212/1814-1196-2018-4-91-100

V. Kharakhinov, S. Sosinskaya

引用次数: 0

Study of technical and economic performance of the combined heat supply system with Freon thermal transformers 氟利昂热变压器联供系统的技术经济性能研究

Science Bulletin of the Novosibirsk State Technical University Pub Date : 2018-09-17 DOI: 10.17212/1814-1196-2018-3-145-156

O. Grigorieva, A. Frantseva, O. Borush

引用次数: 0