A non-touch on-line optical fiber measurement system for roll wears is designed, based on the principle of reflective displacement fiber-optic sensor. By using a novel probe of three optical fibers in equal transverse...
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Cipher index is a well established technology for improving query efficiency. However, the existing index schemes have defect of lowness in query hit rate which leads to internet crowdedness. It is the key for this pr...
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According to the characteristic and the measuring accuracy of roller wear testing course, the principle and the function of the detecting system have been analyzed. Basing on the principle that the reflected light int...
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Basing on the principle of reflective displacement fibre-optic sensor, a high accuracy non-touch on-line optical fibre sensor for detecting roll shape is presented. The principle and composition of the detection syste...
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This paper presents the prototype of a direct dynamic optimization strategy to enhance the long term voltage stability. Based on the Quasi-steady-state model, the coordinated voltage control problem is presented by a ...
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ISBN:
(纸本)9781424465460
This paper presents the prototype of a direct dynamic optimization strategy to enhance the long term voltage stability. Based on the Quasi-steady-state model, the coordinated voltage control problem is presented by a differential-algebra optimization form. The dynamic optimization problem is transferred to a nonlinear programming model by approximating state variable, algebraic variable and control variable profiles based on a family of polynomials on finite time elements. Nonlinear primal-dual interior point method is applied to solve this nonlinear programming model. Filter line search method is used to compute the search step coupling with the Newton directions, larger steps may be accepted while the iteration approaches to the solution. This integrated strategy is tested on New England 10 generator 39 bus system and the simulation results show the potential for further extension on large scale optimization problems.
We abstract the bus transport networks(BTNs)to two kinds of complex networks with space L and spaceP methods *** improved community detecting algorithm(PKM agglomerative algorithm),we analyzethe community property of ...
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We abstract the bus transport networks(BTNs)to two kinds of complex networks with space L and spaceP methods *** improved community detecting algorithm(PKM agglomerative algorithm),we analyzethe community property of two kinds of BTNs *** results show that the BTNs graph described with space Lmethod have obvious community property,but the other kind of BTNs graph described with space P method have *** reason is that the BTNs graph described with space P method have the intense overlapping community propertyand general community division algorithms can not identify this kind of community *** overcome this problem,we propose a novel community structure called N-depth community and present a corresponding community detectingalgorithm,which can detect overlapping *** the novel community structure and detecting algorithmto a BTN evolution model described with space P,whose network property agrees well with real BTNs',we get obviouscommunity property.
With the rapid development of modern society, how to improve human healthy has become a wide requirement. Medical instruments and its related standards have been studied by many researchers around the world. With the ...
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ISBN:
(纸本)9789881824219
With the rapid development of modern society, how to improve human healthy has become a wide requirement. Medical instruments and its related standards have been studied by many researchers around the world. With the widely use of computer software in medical instruments, how to evaluate and ensure its accuracy and security has become focused on by the researchers. Until now, to the best of our knowledge, there is no such model in China, which focuses on how to quantify and evaluate the quality of software in medical instruments. Based on the overview of current works, this paper presents a framework for classifying the software in medical instruments and proposes a set of methods to evaluate the quality of software in medical instruments. Compared with other standards, our mechanism will be more applicable to the software in medical instruments in China.
Concurrent access among multiple mobile readers brings about a new problem called reader collision that a reader's transmission is interfered by the others. There have been several works to solve the reader collis...
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Present video retrieval methods have many problems. To solve these problems, a new video retrieval algorithm base on the combination of video spatio-temporal feature curves and key frames is proposed in this paper. In...
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Comparing with the common operating system, the secure operating system can provide the user with a more safe and reliable operating platform of the computer system. The testing to the security functions of the secure...
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