Aiming at the existing redundant alarm information of monitoring software in power system, for making operators can quickly grasp the key abnormal information and timely accurately take measures, this paper provides t...
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Aiming at the existing redundant alarm information of monitoring software in power system, for making operators can quickly grasp the key abnormal information and timely accurately take measures, this paper provides the design idea of intelligent alarm system. The system has the characteristics of strong scalability and fast response by using the object-oriented modular design methods and multi-threading technology. The district power network warning system is realized by information integration, information classification, intelligent decision analysis, run direction, TTS technology and LINQ technology.
This paper develops the software subsystem of building power consumption monitoring and management system (BPCMMS), which is significant for the supervision of building energy efficiency. By monitoring and diagnosing ...
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This paper develops the software subsystem of building power consumption monitoring and management system (BPCMMS), which is significant for the supervision of building energy efficiency. By monitoring and diagnosing the power consumption, the real reason of high power consumption would be found. This paper introduces the software subsystem with multi-tier distributed application services, which contains the persistence layer, the application layer, and the representation layer. According to the basic information of building and the actual monitoring data, we can thoroughly study the problems of energy efficiency for large public buildings.
Given a set of lists, where items of each list are sorted by the ascending order of their values, the objective of this paper is to figure out the common items that appear in all of the lists efficiently. This problem...
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Given a set of lists, where items of each list are sorted by the ascending order of their values, the objective of this paper is to figure out the common items that appear in all of the lists efficiently. This problem is sometimes known as common items extraction from sorted lists. To solve this problem, one common approach is to scan all items of all lists sequentially in parallel until one of the lists is exhausted. However, we observe that if the overlap of items across all lists is not high, such sequential access approach can be significantly improved. In this paper, we propose two algorithms, MergeSkip and MergeESkip, to solve this problem by taking the idea of skipping as many items of lists as possible. As a result, a large number of comparisons among items can be saved, and hence the efficiency can be improved. We conduct extensive analysis of our proposed algorithms on one real dataset and two synthetic datasets with different data distributions. We report all our findings in this paper.
As Service-Oriented Architecture (SOA) continues to be broadly adopted, the maintenance and evolution of service-oriented systems become a growing issue. Maintenance and evolution are inevitable activities since almos...
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As Service-Oriented Architecture (SOA) continues to be broadly adopted, the maintenance and evolution of service-oriented systems become a growing issue. Maintenance and evolution are inevitable activities since almost all systems that are useful and successful stimulate user-generated requests for change and improvement. A critical issue in the evolution of SOA is change propagation: given a set of primary changes that have been made to the SOA model, what additional secondary changes are needed to maintain consistency across multiple levels of the SOA models. This paper presents how an existing framework can be applied to effectively support change propagation within a SOA model. We also propose to extend this framework with a minimal modification strategy that helps select change options in a manner that accommodates the structural and semantic dimensions of SOA models.
This paper presents a reference framework, called BUD, to manage a large shared bank of unstructured data. This paper lists several important issues on managing or maintaining the unstructured data in BUD. BUD stores ...
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This paper presents a reference framework, called BUD, to manage a large shared bank of unstructured data. This paper lists several important issues on managing or maintaining the unstructured data in BUD. BUD stores and manages the ever-growing unstructured data by introducing a novel technique called free-table, which is a conceptual view for end-users and a physical entity maintained by transactional storage manager of BUD. Free-table is cell-oriented but not column-oriented as relational table. It can store various types of unstructured data in cell with different versions. Additionally, we study two cases, VMP and PXRDB, to show that our proposal is feasible and tractable.
It's difficult to measure the flux of supercritical water because of its high temperature and pressure. With a example of supercritical water with a pressure of 25 Mpa in tube (inner diameter = 37 mm), experiments...
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It's difficult to measure the flux of supercritical water because of its high temperature and pressure. With a example of supercritical water with a pressure of 25 Mpa in tube (inner diameter = 37 mm), experiments and simulation were taken to study the mass flux measurement by orifice flowmeter. At normal atmosphere, the orifice plate is demarcated by weighing method, and then simulated by Fluent software, so the reliability of simulation can be checked. At supercritical pressures, a series of conditions with different temperatures and pressures were simulated by Fluent software, and then characteristics of the orifice discharge coefficient were studied.
Nowadays, commercial or in-house customized process management tools have been prevalently adopted for supporting software project management and process improvement. In this paper we report a case study to empiricall...
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Nowadays, commercial or in-house customized process management tools have been prevalently adopted for supporting software project management and process improvement. In this paper we report a case study to empirically investigate and evaluate the usage status and implications of a supporting tool named QONE in industrial environment in China. Decision theory is adopted in study design. The analysis is mainly based on the usage data from a typical industrial project. Further questionnaires and follow-up interviews with the end-users are also conducted. The analysis results reveal that 1) the effects of such supporting tool vary with respect to different task types, 2) tasks with smaller granularity are comparatively easier to predict and control, 3) missing data reporting analysis helps to reveal opportunities for further process improvement and tool enhancement. This investigation aims to help us take advantages of such supporting tools and benefit software development eventually.
An auto-tracking system of solar transmission mechanism was established by SolidWorks software. And motion simulation of the system was done by COSMOSMotion. Meanwhile, static force analysis under the weight load of t...
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The continuous requirements of evolving a service-oriented application and the rising cost of shutting down services at runtime are forcing researchers to find ways of updating services while they run. Dynamic service...
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The continuous requirements of evolving a service-oriented application and the rising cost of shutting down services at runtime are forcing researchers to find ways of updating services while they run. Dynamic service update can solve the problem of such applications and is becoming a challenging issue. This paper presents a formal model for supporting dynamic update framework based on OSGi. The process of dynamic service update is specified using Finite State Process (FSP) and then the Labelled Transition System Analyzer (LTSA) tool for formal property verifications. We also formally analyze and prove type-safe update of such frameworks, and finally demonstrate that our model works well in practical cases.
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