Traffic circle is an important type of non-signalized intersection, and there is an extensive use of it. In order to improve traffic capacity and safety, different traffic circles adopt different traffic priority, for...
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ISBN:
(纸本)9783642279652
Traffic circle is an important type of non-signalized intersection, and there is an extensive use of it. In order to improve traffic capacity and safety, different traffic circles adopt different traffic priority, for example, vehicle in-circle precedence method and the vehicle entry-precedence method. This paper studies the applicability of different traffic priority based on the traffic circle capacity. Assume that the time headway within the circle obeys Erlang distribution, and by using the gap-acceptance theory, the paper suggests the calculation formula of the saturation flow of the traffic circle. Based on the model solution, a critical value can be got to distinguish the applicability of different traffic priority. Therefore, the solution could help relevant departments make decision.
In this paper. Moran index of spatial statistics, the spatial lag and spatial error model of spatial econometric economics, combined with Griliches&Jaffe knowledge production function(Knowledge Production Function...
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ISBN:
(纸本)9783642279652
In this paper. Moran index of spatial statistics, the spatial lag and spatial error model of spatial econometric economics, combined with Griliches&Jaffe knowledge production function(Knowledge Production Function. KPF). were used in spatial econometric analysis on China's provincial paper manufacturing R&D and innovation knowledge spillovers. The results show that there are significant global and local spatial autocorrelation in paper industry green innovation model: also find that China's 31 provincial contribution of green innovation in paper manufacturing sector was mainly achieved by enterprises R&D investment, while the combination of university and enterprise did not show significant effect on green innovation spillovers. The results show effect of knowledge spillovers are exist, but not significant. In the end, according to the conclusions, we draw some advices.
With the VMS gradually extensively used in major cities, it is necessary to evaluate its guiding result scientifically and systematically. This paper studies on the effect evaluating system of VMS, mainly includes eva...
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ISBN:
(纸本)9783642279652
With the VMS gradually extensively used in major cities, it is necessary to evaluate its guiding result scientifically and systematically. This paper studies on the effect evaluating system of VMS, mainly includes evaluation index and comprehensive evaluation two parts. First, the evaluation index is made up of five indexes which are network, economy, environment, safety and driver. Second, compare the common comprehensive evaluation method and the Grey relational analysis is finally chose. Finally, take one region network of Beijing as an example to apply the evaluation system and prove its efficiency.
Network bring further study and further increase opportunities for people to build up a platform for learning. Learning platform is an open, equitable and other characteristics;learners learn to use e-learning platfor...
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ISBN:
(纸本)9783642279652
Network bring further study and further increase opportunities for people to build up a platform for learning. Learning platform is an open, equitable and other characteristics;learners learn to use e-learning platform. showing the individual, collaboration and unstructured features. I start from these features, combined with study and evaluation made of the current web-based learning platform for learning evaluation there are some problems. This learning platform for learning to re-evaluate the content of the building. including the evaluation of the learning environment, learning methods and assessment of learning styles, learning attitude and emotional evaluation of network resources utilization of the evaluation.
In this paper, we proposed a new division method of agent functions and introduced the message driven mechanism into IDS. We developed non-parametric CUSUM algorithm. Unlike previous proposals for usage of CUSUM algor...
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ISBN:
(纸本)9783642279652
In this paper, we proposed a new division method of agent functions and introduced the message driven mechanism into IDS. We developed non-parametric CUSUM algorithm. Unlike previous proposals for usage of CUSUM algorithm in invading detecting, we presented a Deviations Regression Algorithm which could greatly improve performance of CUSUM algorithm. We demonstrated that we can achieve high detection accuracy on different network contexts.
The Economic Zone on the West Side of the Taiwan Straits, taking Fujian province as the main body, spans multiple administrative regions in China. In accordance with the law of market economy and intra-economic links....
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ISBN:
(纸本)9783642279652
The Economic Zone on the West Side of the Taiwan Straits, taking Fujian province as the main body, spans multiple administrative regions in China. In accordance with the law of market economy and intra-economic links. the zone will break through the boundaries of administrative regions and progressively establish inter-provincial economic regions, the economic transitions are an internal requirement of economic development in the zone. Based on the regional condition, the ways to accelerate the economic transition in the zone are analyzed from two aspects in this paper, including optimizing the benefit of the zone as a whole, changing the growth pattern of the traditional economy, The two ways will promote the transitions and sustainable development of the economy in the zone.
Movement of stock indices is responsive to changes in macroeconomic fundamentals. The objective of this study is to find the relationship between macroeconomic variables and stock prices in Karachi Stock Exchange (KSE...
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ISBN:
(纸本)9783642279652
Movement of stock indices is responsive to changes in macroeconomic fundamentals. The objective of this study is to find the relationship between macroeconomic variables and stock prices in Karachi Stock Exchange (KSE), Pakistan. The study considers annual data of several macroeconomic variables from 1998 to 2009: gross domestic product, exports, consumer price index, money supply M2, exchange rate, foreign direct investment and oil prices. The stationarity of data is checked through Augmented Dickey Fuller test. All variables are stationary at zero lag. Multiple regression analysis with Fixed Effects Model is then used. Results show that gross domestic product and exchange rate positively affect stock prices while consumer price index negatively affects stock prices. The results of export, money supply M2, foreign direct investment and oil prices were insignificant. This study will facilitate investors in taking effective investment decisions by estimating the expected trends in macroeconomic variables.
The service triggering mechanism of current IMS not only leads to heavy load of the S-CSCF entities, but also limits the provision of feasible service which makes use of context information. Thus, a ubiquitous-computi...
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ISBN:
(纸本)9783642279652
The service triggering mechanism of current IMS not only leads to heavy load of the S-CSCF entities, but also limits the provision of feasible service which makes use of context information. Thus, a ubiquitous-computing enabled service triggering and executing pattern in converged network is introduced. Via analyzing service pattern of current IMS architecture, a novel mechanism that introduces P2P like service triggering based on terminal side coordination is introduced, which results in the conversion from central service control to the negotiation service triggering pattern based on context information among terminals. In this new service pattern, context aware triggering is supported. Moreover, service can be executed in a distributed way which means service logic can be composed of terminal and server parts. A detail scenario is also discussed in this paper.
A mathematical model is developed in algorithmic form for the steady-state simulation of plate heat exchangers with generalized configurations. In present works, the thermal and hydraulic performances of working fluid...
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ISBN:
(纸本)9783642279652
A mathematical model is developed in algorithmic form for the steady-state simulation of plate heat exchangers with generalized configurations. In present works, the thermal and hydraulic performances of working fluid in three corrugated channels have been investigated, numerically by a three-dimensional model with a new-type corrugation Plate Heat Exchanger (PHE)-double chevron PHE (DCPHE). The heat transfer character, the flow resistance and the Performance Evaluation Criteria (PEC) of the working fluid in double chevron PHE have been discussed;Results showed that the double chevron PHE with 9mm of corrugation pitch was better one.
Although cyber attacks are becoming smarter and use more advanced technologies, existing security mechanisms cannot promptly detect or respond to such attacks. For example, IP spoofing is effectively used to attack a ...
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ISBN:
(纸本)9783642279652
Although cyber attacks are becoming smarter and use more advanced technologies, existing security mechanisms cannot promptly detect or respond to such attacks. For example, IP spoofing is effectively used to attack a security model using authentication process based on IP address or host name and, there is a large number of measures to detect such an attack. However, a malicious user can make a bypass attack by analyzing vulnerabilities. This study, therefore, has analyzed the vulnerability of 4-step BASE mechanism exploited by a bypass attack.
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