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А. Г. Лютов,О. И. Чугунова
Vestnik UGATU , 2013,
Abstract: Рассмотрены вопросы построения и совершенствования системы менеджмента качества (СМК) на основе CALS-технологий для автоматизированных производств. Определена структура компьютерной СМК и механизмы ее информационного обеспечения. Рассмотрена информационно-управляющая структура автоматизированного производства как элемент СМК.
Chetvertnov A.V. / Четвертнов Александр Владимирович,Burlachenko O.V. / Бурлаченко Олег Васильевич
Internet-Vestnik VolgGASU , 2006,
Abstract: The immediate problem of the upgrade of the operation of construction plant and equipments over the life cycle is considered. The analysis of existing bundled soft wares, operation and control modes and support the product life cycle of the engineering is given. Currently the optimal method and information system does not exist, which could predict and propose relevant solutions for the different life-cycle stage as developed, so has operated construction plant and equipments. The new advanced data system modeling and forecasting of the product life cycle is proposed, based on more sophisticated calculation method. The algorithm of the engineering support of performance criteria of construction plant and equipments was developed. / Рассмотрена актуальная проблема повышения качества функционирования строительных машин и оборудования на протяжении жизненного цикла.Приведен анализ существующих программных комплексов, способов и методов управления и поддержки жизненного цикла продукции машиностроения. Сделан вывод о том, что на текущий момент не существует оптимального способа и информационных систем, которые могли бы прогнозировать и предлагать актуальные решения для различных этапов жизненного цикла как разрабатываемых, так уже эксплуатирующихся строительных машин и оборудования.Предложена новая перспективная информационная система моделирования и прогнозирования жизненного цикла продукции, основанная на более совершенных методах расчета.Разработан алгоритм технологического обеспечения эксплуатационных показателей строительных машин и оборудования.
A Method to Enhance the Performance in the Construction of the Moving Average S Chart
Michael B.C. Khoo,C.Y. Looi
Matematika , 2006,
Abstract: The S chart is often used to monitor shifts in the process variance in industries. The S chart is different from the R chart because the S chart is based on the sample standard deviation whereas the R chart involves the sample range. The S chart is less sensitive in the detection of small shifts in the variance. In this study a method to enhance the performance of the S chart by means of the construction of the moving average S chart will be proposed. A simulation study is conducted using SAS version 8 to evaluate the performance of the moving average S chart. Average and median run lengths are computed so that a comparison of the performances between the moving average S chart and the basic S chart can be made. The average run length (ARL) and median run length (MRL) give the average and median of the number of samples that must be plotted on a control chart before the first out-of-control signal is received. These two measures evaluate the quickness of a control chart in detecting a shift in the process. The advantages of MRL as compared to ARL are also discussed in this study.
Ubiquitous Mobile Knowledge Construction in Collaborative Learning Environments  [PDF]
Nelson Baloian,Gustavo Zurita
Sensors , 2012, DOI: 10.3390/s120606995
Abstract: Knowledge management is a critical activity for any organization. It has been said to be a differentiating factor and an important source of competitiveness if this knowledge is constructed and shared among its members, thus creating a learning organization. Knowledge construction is critical for any collaborative organizational learning environment. Nowadays workers must perform knowledge creation tasks while in motion, not just in static physical locations; therefore it is also required that knowledge construction activities be performed in ubiquitous scenarios, and supported by mobile and pervasive computational systems. These knowledge creation systems should help people in or outside organizations convert their tacit knowledge into explicit knowledge, thus supporting the knowledge construction process. Therefore in our understanding, we consider highly relevant that undergraduate university students learn about the knowledge construction process supported by mobile and ubiquitous computing. This has been a little explored issue in this field. This paper presents the design, implementation, and an evaluation of a system called MCKC for Mobile Collaborative Knowledge Construction, supporting collaborative face-to-face tacit knowledge construction and sharing in ubiquitous scenarios. The MCKC system can be used by undergraduate students to learn how to construct knowledge, allowing them anytime and anywhere to create, make explicit and share their knowledge with their co-learners, using visual metaphors, gestures and sketches to implement the human-computer interface of mobile devices (PDAs).
Technology paternalism – wider implications of ubiquitous computing
Sarah Spiekermann,Frank Pallas
Poiesis & Praxis , 2006, DOI: 10.1007/s10202-005-0010-3
Abstract: Die Technologien des “Ubiquitous Computing” werden weit gehende Auswirkungen auf unser t gliches Leben haben. Derzeit bewegen sich die meisten Debatten zu den sozialen Auswirkungen haupts chlich in den Gebieten des Datenschutzes und der Datensicherheit. Dennoch vertreten die Autoren dieses Artikels die Auffassung, dass auch weitere Aspekte aus der sozialen Perspektive betrachtet werden müssen. Insbesondere wird die Frage aufgeworfen, wie Menschen in einer Umgebung, die immer weiter autamatisiert sein soll, weiterhin die Kontrolle behalten k nnen. Unter Hinweis auf die M glichkeit, dass Menschen von autonom agierenden Maschinen kontrolliert werden k nnten, führen wir Autoren den Begriff des Technologiepaternalismus ein. Wir entwickeln hierzu eine Arbeitsdefinition und illustrieren das Konzept anhand bereits existierender wie auch m glicher zukünftiger Technologien. Wir gehen zudem auf die Beziehung zwischen Allgegenw rtigkeit und Kontrolle ein und schlagen stellen Ans tze zur Sicherstellung einer angemessenen Balance unterschiedlicher Interessen vor. Einer dieser Vorschl ge ist ein generelles “Recht auf das letzte Wort”.
Ubiquitous Indoor Localization and Worldwide Automatic Construction of Floor Plans  [PDF]
Moustafa Youssef,Moustafa Elzantout,Reem Elkhouly,Amal Lotfy
Computer Science , 2012,
Abstract: Although GPS has been considered a ubiquitous outdoor localization technology, we are still far from a similar technology for indoor environments. While a number of technologies have been proposed for indoor localization, they are isolated efforts that are way from a true ubiquitous localization system. A ubiquitous indoor positioning system is envisioned to be deployed on a large scale worldwide, with minimum overhead, to work with heterogeneous devices, and to allow users to roam seamlessly from indoor to outdoor environments. Such a system will enable a wide set of applications including worldwide seamless direction finding between indoor locations, enhancing first responders' safety by providing anywhere localization and floor plans, and providing a richer environment for location-aware social networking applications. We describe an architecture for the ubiquitous indoor positioning system (IPS) and the challenges that have to be addressed to materialize it. We then focus on the feasibility of automating the construction of a worldwide indoor floor plan and fingerprint database which, as we believe, is one of the main challenges that limit the existence of a ubiquitous IPS system. Our proof of concept uses a crowd-sourcing approach that leverages the embedded sensors in today's cell phones as a worldwide distributed floor plan generation tool. This includes constructing the floor plans and determining the areas of interest (corridors, offices, meeting rooms, elevators, etc). The cloud computing concepts are also adopted for the processing and storage of the huge amount of data generated and requested by the system's users. Our results show the ability of the system to construct an accurate floor plan and identify the areas of interest with more than 90% accuracy. We also identify different research directions for addressing the challenges of realizing a true ubiquitous IPS system.
基于CALS及Surpac-FLAC3D耦合技术的 复杂空区稳定性分析

LIU Kewei,LI Xibing,GONG Fengqiang,LIU Xiling,WANG Weihua,

岩石力学与工程学报 , 2008,
Abstract: 由于受地质条件和探测技术的限制,传统探测方法很难获得复杂空区精确的实际空间分布形状,由此得到的空区用于建立数值分析模型显得过于粗糙,在此基础上进行空区稳定性分析的可靠性程度不高.采用空区激光自动扫描系统(CALS)对复杂空区进行激光扫描,在获得精准三维点云数据的基础上,运用Surpac软件模拟出空区的三维地质模型,通过耦合方法可以在FLAC3D中生成与实际空区空间分布一致的数值模型,提高复杂空区稳定性计算的准确性和可靠性.选取三道庄露天矿的地下空区作为工程实例,利用CALS获得不规则空区的实际空间边界.在此基础上,运用Surpac进行三维块体模拟,研究Surpac与FLAC3D模型耦合技术,成功地将三维模型数据导入FLAC3D中,结合现场实际勘测的围岩力学参数,对空区进行静力计算,分析空区的稳定性.
Virtual Database Technology for Distributed Database in Ubiquitous Computing Environment
American Journal of Database Theory and Application , 2012, DOI: 10.5923/j.database.20120102.02
Abstract: In this paper, our research objective is to develop a database virtualization technique in order to let data analysts or other users who apply data mining methods to their jobs use all ubiquitous databases on the Internet as if they were recognized as a single database, thereby helping to reduce their workloads such as data collection from the Internet databases and data cleansing works. In this study, firstly we examine XML schema advantages and propose a database virtualization method by which such ubiquitous databases as relational databases, object-oriented databases, and XML databases are accessed as if they all behave as a single database. Then, we show the method of virtualization of ubiquitous databases that can describe ubiquitous database schema in a unified fashion using the XML schema. It consists of a high-level concept of distributed database management of the same type and of different types, and also of a location transparency feature. Next, we discuss about the development of a common schema generation method and propose the virtual database query language for use in the virtualized ubiquitous database environment. Finally, we propose a database incompatibility trouble-recovery technique for use in a virtualized ubiquitous database environment.
Book Review: Ubiquitous Computing in Education: Invisible Technology, Visible Impact  [cached]
Leonard Trujillo
Journal of the Research Center for Educational Technology , 2007,
Abstract: When first hearing of the title of this text I was eager to acquire it and read it for my own enrichment as well as for the journal review process. When I write a review, I follow some guidelines laid out by Adler and Van Dorn in their text How to Read a Book. The book is divided into four distinct sections: Introduction and Background: Why should we Bother?; Teaching and Learning in Ubiquitous Environments: What does it look like?; Ubiquitous Computing Research: What do we know? and The Future of Ubiquitous Computing: How can we make it work?
Construction and technology similarity  [PDF]
R. Rz?siński,P. Gendarz
Journal of Achievements in Materials and Manufacturing Engineering , 2011,
Abstract: Purpose: The main aim of study is to present the theory of construction similarity and technology. The theory of similarity is based on the theory of physical similarity. Model in the theory of similarity of construction and technology is construction and technology standard.Design/methodology/approach: The essence of this theory is to choose such constructional features of the new designed construction to obtain the identical states: physical, stereo mechanical or simple like in the standard construction However, in creating new technologies to obtain the same technological conditions: cutting power, cutting forces and cutting performance as standard technology.Findings: Elaborated methodology aim to identify similarities in the way of semi-automated construction and technology. Features are determined for the items stored in the form of series of construction and technology types.Research limitations/implications: Analysed methods develop algorithmisation of engineers and technologists environment and support integration with the process of preparation the production.Practical implications: Described methods were being developed on practical examples of creating the series of types of hydraulic cylinders used in mining.Originality/value: Method of the constructional similarity, technological similarity presented in the paper are basis of selection of design features in the process of series of types and module systems of constructions and technology creating. All of these methods support intensive development of the types of technical features and affect on their competitive on the ready market
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