摘要：
For improving the reliability of Concrete pump, fault diagnosis is proposed based on the main oil hydraulic pumping system T-S fuzzy fault tree method. The proposed method used fuzzy numbers to descri
会议名称：
15th IEEE International Symposium on Parallel and Distributed Processing with Applications (ISPA) / 16th IEEE International Conference on Ubiquitous Computing and Communications (IUCC)
会议论文集名称：
IEEE International Symposium on Parallel and Distributed Processing with Applications
关键词：
Cognitive radio network;cooperative spectrum sensing;energy harvesting;spectrum access probability
摘要：
In this paper, an energy harvesting based cooperative spectrum sensing in cognitive radio network is proposed to improve spectrum utilization and energy efficiency. We aim to exploit the optimal sensing time and energy harvesting time that maximize the spectrum access probability of the SUs under both sensing accuracy and energy constraints. A joint optimization problem of spectrum sensing time and energy harvesting time is constructed in this paper and we apply alternating direction optimization method to convert the convex problem into two sub-optimization problems. The sub-optimal solution can be obtained by repeating to optimize the spectrum sensing time and energy harvesting time until they are convergent. The simulation results are provided to validate the proposed approach, which show that the proposed model and optimization method can extend battery lifetime obviously.
摘要：
The development of rural e-commerce is an important means to promote the rural development. The research and analysis of the influencing factors is the key step to accelerate the development of rural
会议论文集名称：
International Conference on Fuzzy Theory and Its Applications
关键词：
Fuzzy sets;Rough Sets;Granular Computing;Attribute Reducts;Fuzzy Covering;Related Family
摘要：
Attribute reduction is the most important tool in rough set theory. To extend the application range, many fuzzy rough set models have been proposed, but less effort has been made for attribute reduction. In this paper, we construct a new method based on related family to get attribute reducts for fuzzy beta-covering rough sets.
摘要：
According to the results of the single aeration on Monascus anka mutant growth and monascus yellow pigments production in this paper, two stages in the fermentation aeration control strategy has been operated as following: 0.8 similar to 1.0 vvm aeration was carried out to improve the Monascus anka mutant growth and yellow pigments production before fermentation 96 hours, and then 0.4 similar to 0.6 vvm aeration was done to extend the time of yellow pigment production with efficient using substrate. The yield of monascus yellow pigments can arrive with 136.08 OD at 102 hours, it was higher 65.75%, 28.07%, 23.93%, 7.43% and 23.85% than that of 0.4 vvm, 0.6 vvm, 0.8 vvm, 1.0 vvm and 1.2 vvm aeration, respectively. The maximum specific production rate of yellow pigments(q(y)) could arrive with 0.2852 OD.g(-1).h(-1) at 42 hours and two stage control strategy of aeration could obviously slow down the decreasing speed for yellow pigments production. The maximum specific growth rate (mu(max)) could arrive with 0.0746 h(-1) at 6 hours and the decreasing speed for specific growth rate was slowly. The two stage aeration controlling strategy could obviously decrease the aging speed of Monascus anka mutant in fermentation anaphase. These results in this paper have very important theoretical and realistic significance for realization the monascus yellow pigments industrial production by submerge culture.
摘要：
With the quick pace of the development of cultural diversity, we pay more attention to the excavation of national characteristics. It is particularly urgent to dig deep to artistic feature and culture heritage of the traditional pattern with people aesthetic standards and the orientation of culture conception. Primary research the cultural background of the curly grass pattern and analyse the characteristics of the age of the curly grass pattern deduction with image collection and field visit etc. It summarizes the relationship between the the curly grass pattern and furniture design in traditional buildings which leads to the way of inheritance and innovation. And then gives some reference for develop and expand the national modern furniture products. Countless design patterns are derived in different cultural background, dating back to ancient times. But as plant decorative pattern, the curly grass pattern play a big role in our history of art deco, and many other places of the world. It experienced the baptism and precipitate of the times from apply to Buddhist decorative art, and to building decorative pattern, and later to furniture design. Furniture become the main implements in the buildings, the two grow together, both serve for human creative activities of material.
关键词：
the rural information service system;comprehensive evaluation;countermeasure
摘要：
The process of rapid economic growth, has an important influence on the construction of rural areas in Hengyang. The optimization of rural information service system has become an important issue in the construction of new rural areas in Hengyang. The rural information service system is not only for the rural construction and service, it is important to promote the rural infrastructure the smooth development of Hengyang, further narrowing the gap between urban and rural areas. This paper analyzes the problems involved in the construction and comprehensive evaluation of the rural information service system in Hengyang, and puts forward some effective measures to improve the construction of rural information service system in Hengyang city.
摘要：
The hidden technology of Trojan horses was investigated. Through the analysis of the original Trojan hiding technology, it improved the local hiding ability of the Trojan horse and construe randomly s
作者机构：
[Liu, Jingxian; Xiong, Ke] Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing, Peoples R China.;[Zhao, Zhuyan] Nokia Siemens Networks, Beijing, Peoples R China.;[Zhong, Shaohong] Cent South Univ Forest & Technol, Sch Comp & Informat Engn, Changsha, Hunan, Peoples R China.;[Zhong, Zhangdui; Ai, Bo] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing, Peoples R China.;[Zhong, Zhangdui; Ai, Bo] Beijing Jiaotong Univ, Beijing Engn Res Ctr High Speed Railway Broadband, Beijing, Peoples R China.
会议名称：
15th International Conference on ITS Telecommunications (ITST)
会议时间：
MAY 29-31, 2017
会议地点：
Warsaw, POLAND
会议主办单位：
[Liu, Jingxian;Xiong, Ke] Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing, Peoples R China.^[Zhao, Zhuyan] Nokia Siemens Networks, Beijing, Peoples R China.^[Zhong, Shaohong] Cent South Univ Forest & Technol, Sch Comp & Informat Engn, Changsha, Hunan, Peoples R China.^[Zhong, Zhangdui;Ai, Bo] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing, Peoples R China.^[Zhong, Zhangdui;Ai, Bo] Beijing Jiaotong Univ, Beijing Engn Res Ctr High Speed Railway Broadband, Beijing, Peoples R China.
关键词：
handover performance;high speed train;Doppler frequency spread
摘要：
This paper investigates the effects of moving speed on handover performances with measurement data from three scenarios, i.e., viaduct environment, cutting environment and urban area. To do so, we first extract some samples from measurement data. As the data neglected the effect of shadow fading and interchannel interference (ICI), we then add some values into the data, which are the shadowing generated following lognormal distribution and the upper bound of ICI power caused by Doppler frequency spread. Based on the data, we analyze the effects of moving speed on hand over performances in Long Term Evolution (LTE), where the handover performance including the hand over starting point is calculated in terms of the measurement data and the handover procedure in LTE. Numerical results show that higher speed postposes the hand over starting point.
摘要：
To visual stimulation, form is a very important visual characteristic. Multiple and abundant garden plant morphology would bring different unique visual senses to people, which would further cause dif
会议名称：
1st International Conference on Electronics Instrumentation & Information Systems (EIIS)
会议时间：
JUN 03-05, 2017
会议地点：
Harbin Inst Technol, Harbin, PEOPLES R CHINA
会议主办单位：
Harbin Inst Technol
关键词：
deep sea mining;coordinated control;miner;ship
摘要：
According to the environment of Chinese deep sea mining area, the influence from the ship and the miner on the sea bed is analyzed, and the coordinated working mode of the ship and the miner is proposed. Meanwhile, the working path of the miner is determined. Considering the safe areas of the ship, miner and the buffer, the relative distance between the ship and the miner, that is 240 meters, is presented as the coordinated control target. Also, the saddle shape of the flexible hose, which ensure the productivity of the transportation, can be guaranteed. A simple PID control strategy is put forward and the model of control system is ascertained. Through along and adverse current simulations, the efficiency and accuracy of the presented coordinated control strategy is proved.
会议论文集名称：
IEEE International Conference on Systems Man and Cybernetics Conference Proceedings
摘要：
Currently, the robot is playing an increasingly significant role in managing a warehouse. This paper proposes an optimal method to help a warehouse robot make task decisions, which aims at minimizing the whole cost of completing multiple tasks. Firstly, Abstract Transition System (ATS) is used to model the warehouse environment, and Linear Temporal Logic (LTL) formula is used to formulate the tasks of warehouse robot. Then based on the ATS and the Buchi automaton translated from the LTL formula, a MM-cost Task Decision Algorithm is proposed to obtain the task decision for the warehouse robot. The decision points out the optimal order and path for the robot to do its tasks. The effectiveness of the proposed method is validated through case studies with two kinds of tasks.
摘要：
On the frontier of Image Processing, researchers are encountering the challenge of effectively retrieving and using the information contained in the image. As per the prevailing research after the feature extraction of the relevant properties of a high-level image, the resulting image does not add too many features, When operating directly on the image, because of the high Witte sexual performance data are relatively poor, resulting in the traditional classification method does not apply. So this paper uses support vector machine (SVM) image classification techniques which can overcome this defect. This paper makes the use of Dense SIFT algorithm to obtain image feature and then build Bag of words model. Subsequently establishing training dictionary database and finally, the test set of images SVM classification test. Experimental results show that the use of SVM classification accuracy of image retrieval technology enables greatly increased.
摘要：
In order to better assist the innovative furniture design, toy brick style combination concept is applied to furniture design. This paper analyzes the history and conception of combination furniture based on this concept, and analyzes this concept from game, DIY, green design, function design, and culture, as well as its design style and type, proposes its design method, and verifies the guidance value of toy brick style design concept on design with the design practice on combination furniture for users at different ages as an example.
摘要：
The notch-stud connections for timber-concrete composite beams is obtained by cutting a notch from the timber beam and reinforcing it with stud in the notch, and filling it with concrete during the pouring of the concrete slab. Compared to mechanical fasteners, this type of connection has the merit of high stiffness, strength and slip resistance. In this paper, the results of nine variations sizes of rectangular notch of the connections and one notched connection without studs are presented. And these specimens were loaded to failure under shear force. Geometrical variations are the depth, width and length of the notch, use or not of a stud, diameter of the stud. The purpose of this study is to identify the factors affecting the mechanical properties and to optimize the connection detail. Through this study, the shear bearing capacity of the studs were researched and the load-slip curve was obtained. And a quarter of the specimens were modeled by ABAQUS. Finally, the experimental results were agreed with numerical results well.
摘要：
Device-to-Device (D2D) communications and small cell networks, as promising technologies to improve spectral efficiency and system throughput for future cellular networks, have received increasing attentions. In this paper, we model D2D communications in the two-tier heterogeneous macro-small cell networks. We propose not only two novel resource sharing strategies for D2D users, namely dedicated resource sharing strategy and cross-tier resource sharing strategy, but theirs corresponding power control strategies as well. In order to minimize cross-tier interference for the two-tier cellular networks, we formulate the optimization problem of power control and channel allocation, as a convex optimization problem and a 01 assignment problem, respectively. The system-level simulations demonstrate that the proposed schemes significantly increase the throughput compared to cellular-only transmission. Simulation results also reveal the D2D communications can be regarded as an interference mitigation technology for the two-tier heterogeneous networks and present the high potential of D2D communications.
