一、SCI 7条
*Record 1 of 7. Search terms matched: CHONGQING 400074(2); CHONGQING JIAOTONG(2)
*Click Here to View Full Record
*Order Full Text [ ]
Title:Stability of stochastic functional differential equations with impulses by an average approach
Authors:Li, B
Author Full Names:Li, Bing
Source:NONLINEAR ANALYSIS-HYBRID SYSTEMS, 29221-233; 10.1016/j.nahs.2018.02.002AUG 2018
Language:English
Abstract: This paper is concerned with the stability issues of stochastic functional differential equations with impulsive effects. Several unified Lyapunov-type stability criteria are established based on the formula of the variation of parameters and the comparison principle of the impulsive systems. The sufficient conditions proposed in this paper depend mainly on the integral average value of the time-varying coefficients and the average impulsive interval, which are less conservative than previous literature. Two examples are provided to demonstrate the effectiveness of the theoretical results. (C) 2018 Elsevier Ltd. All rights reserved.
ISSN:1751-570X
eISSN:1878-7460
IDS Number:GG5KL
Unique ID: WOS:000432734100015
*Record 2 of 7. Search terms matched: CHONGQING 400074(2); CHONGQING JIAOTONG(2)
*Click Here to View Full Record
*Order Full Text [ ]
Title:A physical model experiment for investigating into temperature redistribution in surrounding rock of permafrost tunnel
Authors:Zhang, XF; Zhou, ZH; Li, JQ; Zhou, YF; Han, FL
Author Full Names:Zhang, Xuefu; Zhou, Zihan; Li, Junqi; Zhou, Yuanfu; Han, Fenglei
Source:COLD REGIONS SCIENCE AND TECHNOLOGY, 15147-52; 10.1016/j.coldregions.2018.03.007JUL 2018
Language:English
Abstract: The temperature distribution is one of the most important issues which should be considered in permafrost tunnel design. In order to investigate the influence of temperature disturbance caused by construction and boundary temperature on temperature distribution of surrounding rock in permafrost tunnel, a physical model experiment had been completed. A heater was working for half an hour to simulate the heat which was from construction. Both the inner face of tunnel and model top were exposed to air of test box. The results showed that the boundary conditions were successfully set up. The non-uniform force would act on support structure of tunnel because there were not uniform temperature distributions near the tunnel. The temperature distributions near the tunnel also would be affected by the temperature of ground surface if there is an enough small buried depth. In addition, the heat should be prevented to store in surrounding rock. Speeding up construction and installing reasonable insulation layer may be the effective methods. The results would contribute to understand frost damages mechanism and provide help for permafrost tunnel researches and design.
ISSN:0165-232X
eISSN:1872-7441
IDS Number:GG4QV
Unique ID: WOS:000432682200006
*Record 3 of 7. Search terms matched: CHONGQING 400074(3); CHONGQING JIAOTONG(3)
*Click Here to View Full Record
*Order Full Text [ ]
Title:Boundedness and global robust stability analysis of delayed complex-valued neural networks with interval parameter uncertainties
Authors:Song, QK; Yu, QQ; Zhao, ZJ; Liu, YR; Alsaadi, FE
Author Full Names:Song, Qiankun; Yu, Qinqin; Zhao, Zhenjiang; Liu, Yurong; Alsaadi, Fuad E.
Source:NEURAL NETWORKS, 10355-62; 10.1016/j.neunet.2018.03.008JUL 2018
Language:English
Abstract: In this paper, the boundedness and robust stability for a class of delayed complex-valued neural networks with interval parameter uncertainties are investigated. By using Homomorphic mapping theorem, Lyapunov method and inequality techniques, sufficient condition to guarantee the boundedness of networks and the existence, uniqueness and global robust stability of equilibrium point is derived for the considered uncertain neural networks. The obtained robust stability criterion is expressed in complex-valued LMI, which can be calculated numerically using YALMIP with solver of SDPT3 in MATLAB. An example with simulations is supplied to show the applicability and advantages of the acquired result. (C) 2018 Elsevier Ltd. All rights reserved.
ISSN:0893-6080
eISSN:1879-2782
IDS Number:GG6PL
Unique ID: WOS:000432819400006
PubMed ID:29626733
*Record 4 of 7. Search terms matched: CHONGQING 400074(1); CHONGQING JIAOTONG(1)
*Click Here to View Full Record
*Order Full Text [ ]
Title:Long term durability properties of concrete modified with metakaolin and polymer admixture
Authors:Al Menhosh, A; Wang, Y; Wang, Y; Augusthus-Nelson, L
Author Full Names:Al Menhosh, Adel; Wang, Yu; Wang, Yan; Augusthus-Nelson, Levingshan
Source:CONSTRUCTION AND BUILDING MATERIALS, 17241-51; 10.1016/j.conbuildmat.2018.03.215MAY 30 2018
Language:English
Abstract: Previous studies show that both metakaolin (MK) and polymer can respectively improve certain mechanical and durability properties of concrete. Also, recent studies show that a combination of MK and polymer further enhances the mechanical properties by complement of each other. However, the knowledge of the effect on durability, a critical governing factor of concrete for the applications in extreme environments such as sewage, off-shore and bridge structures, has not been well established yet. This paper reports on a comprehensive study of the effect of metakaolin as a supplementary cementitious material together with polymer as admixture on the durability of concrete at relatively old ages. The results confirm that replacing Portland cement with 15% metakaolin and an additional 5% polymer (by weight) provide the optimum improvement for Portland cement concrete on both mechanical properties and durability. (C) 2018 Elsevier Ltd. All rights reserved.
ISSN:0950-0618
eISSN:1879-0526
IDS Number:GG5XC
Unique ID: WOS:000432768100005
*Record 5 of 7. Search terms matched: CHONGQING JIAOTONG(1)
*Click Here to View Full Record
*Order Full Text [ ]
Title:Developing an evacuation evaluation model for offshore oil and gas platforms using BIM and agent-based model
Authors:Cheng, JCP; Tan, Y; Song, YZ; Mei, ZY; Gan, VJL; Wang, XY
Author Full Names:Cheng, Jack C. P.; Tan, Yi; Song, Yongze; Mei, Zhongya; Gan, Vincent J. L.; Wang, Xiangyu
Source:AUTOMATION IN CONSTRUCTION, 89214-224; 10.1016/j.autcon.2018.02.011MAY 2018
Language:English
Abstract: Accidents on offshore oil and gas platforms (OOGPs) usually cause serious fatalities and financial losses considering the demanding environment where such platforms are located and the complicated topsides structure that the platforms have. Conducting evacuation planning on OOGPs is challenging. Computational tools are considered as a good way to plan evacuation by emergency simulation. However, the complex structure of OOGPs and various evacuation behaviors can weaken the advantages of computational simulation. Therefore, this study develops a simulation model for OOGPs to evaluate different evacuation plans to improve evacuation performance by integrating building information modeling (BIM) technology and agent-based model (ABM). The developed model consists of four parts: evacuation model input, simulation environment modeling, agent definition, and simulation and comparison. Necessary platform information is extracted from BIM and then used to model the simulation environment by integrating matrix model and network model. In addition to essential attributes, environment sensing and dynamic escape path planning functions are developed and assigned to agents in order to improve simulation performance. Total evacuation time for all agents on an offshore platform is used to evaluate the evacuation performance of each simulation. An example OOGP BIM topsides with different emergency scenarios is used to illustrate the developed evacuation evaluation model. The results show that the developed model can accurately simulate evacuation and improve evacuation performance on OOGPs. The developed model is also applicable to other industries such as the architecture, engineering, and construction industry, where there is an increasing demand for evacuation planning and simulation.
ISSN:0926-5805
eISSN:1872-7891
IDS Number:GD8QR
Unique ID: WOS:000430777700018
*Record 6 of 7. Search terms matched: CHONGQING JIAOTONG(1)
*Click Here to View Full Record
*Order Full Text [ ]
Title:Projected land use changes impacts on water yields in the karst mountain areas of China
Authors:Lang, YQ; Song, W; Deng, XZ
Author Full Names:Lang, Yanqing; Song, Wei; Deng, Xiangzheng
Source:PHYSICS AND CHEMISTRY OF THE EARTH, 10466-75; 10.1016/j.pce.2017.11.001APR 2018
Language:English
Abstract: Human-induced land use changes over short time scales have significant impacts on water yield, especially in China because of the rapid social economic development. As the biggest developing country of the world, China's economy is expected to continuously grow with a high speed in the next few decades. Therefore, what kind of land use changes will occur in the future in China? How these changes will influence the water yields? To address this issue, we assessed the water yields in the karst mountain area of China during the periods of 1990-2010 and 2010-2030 by coupling an Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model and a Conversion of Land Use and its Effects (CLUE) model. Three different land use scenarios i.e. natural growth, economic development, and ecological protection, were developed in 2030 using the CLUE model. It was concluded that, given land use changes between 1990 and 2010, total water yields in the karst mountain area are characterized by a trend towards fluctuating reduction. However, total water yields of 2030 in the economic development scenario revealed an increase of 1.25% compared to the actual water yields in 2010. The economy development in karst mountain areas of China in the future has a slight positive influence on water yields.
ISSN:1474-7065
eISSN:1873-5193
IDS Number:GG1YY
Unique ID: WOS:000432487400009
*Record 7 of 7. Search terms matched: CHONGQING 400074(2); CHONGQING JIAOTONG(2)
*Click Here to View Full Record
*Order Full Text [ ]
Title:Experimental Behavior of Concrete-Filled Steel Tubular Members Subjected to Lateral Loads
Authors:Wang, CZ; Liu, X; Li, PF
Author Full Names:Wang, Chengzhi; Liu, Xin; Li, Pengfei
Source:ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 10.1155/2018/90653782018
Language:English
Abstract: The findings of an experimental study that was undertaken to investigate the performance of concrete-filled steel tubular members subjected to lateral loads are reported in this study. Columns of pure concrete, concrete with reinforcing bars, and two steel tube thicknesses were considered. Two different tests were conducted in this study. One test is used to research the performance of steel tube-reinforced concrete model piles under a lateral loading. The other test is used to research the effect of the depth of rock embedment for piles embedded in a foundation to simulate actual engineering applications in an experimental study. According to these test results, a detailed analysis was carried out on the relationships, such as the stress-strain and load-displacement relationships for the specimen. These tests show that the steel tube thickness and steel bars will significantly enhance the lateral bearing capacity and rigidity of the composite components. Additionally, the ultimate bending moment formula of a steel tube-reinforced concrete pile is deduced. The comparison of the calculated results with the experimental results shows that this formula is applicable for this type of pile foundation.
ISSN:1687-8434
eISSN:1687-8442
Article Number:9065378
IDS Number:GG5QT
Unique ID: WOS:000432751500001
二、EI11条
1. Design and implementation of container positioning system based on wireless sensor network
Accession number: 20182205257572
Authors: Bao, Xuexin (1); Zhang, Dan (1)
Author affiliation: (1) Chongqing Jiaotong University, Chongquing, China
Corresponding author: Bao, Xuexin(mercuryb@qq.com)
Source title: International Journal of Online Engineering
Abbreviated source title: Int. J. Online Eng.
Volume: 14
Issue: 5
Issue date: 2018
Publication year: 2018
Pages: 129-142
Language: English
ISSN: 18681646
E-ISSN: 18612121
Document type: Journal article (JA)
Publisher: Kassel University Press GmbH, Diagonale 10, Kassel, 34127, Germany
Abstract: This paper aims to create an efficient container yard management system. For this purpose, a gantry crane management subsystem was designed and implemented for container information management based on the wireless sensor network (WSN). The system consists of a set of desktop management software and three different types sensor nodes, and locates the container via the two-way symmetrical time-of-arrival (TS-TOA) positioning approach. In this way, the subsystem enhances the accuracy of container positioning without elevating hardware cost. Through the implementation of the hardware and software systems, it is proved that the user can successfully locate the container, read and update cargo information, and complete similar operations through human-computer interaction in the desktop management software. Overall, this research greatly improves the efficiency of container management at the port, and helps to reduce the operational cost and port congestion. ? 2018 Kassel University Press GmbH.
Number of references: 16
Main heading: Information management
Controlled terms: Computer hardware - Containers - Hardware - Human computer interaction - Machine design - Sensor nodes - Time of arrival - Wireless sensor networks
Uncontrolled terms: Container management - Container yard - Design and implementations - Desktop management - Hardware and software - Hardware cost - Port congestion - Positioning system
Classification code: 601 Mechanical Design
Mechanical Design
- 605 Small Tools and Hardware
Small Tools and Hardware
- 716.1 Information Theory and Signal Processing
Information Theory and Signal Processing
- 716.3 Radio Systems and Equipment
Radio Systems and Equipment
- 722 Computer Systems and Equipment
Computer Systems and Equipment
- 722.3 Data Communication, Equipment and Techniques
Data Communication, Equipment and Techniques
DOI: 10.3991/ijoe.v14i05.8645
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
2. Influence of bridge-based designed TMD on running trains
Accession number: 20182205247764
Authors: Chen, Zhaowei (1, 2); Fang, Hui (3); Han, Zhaoling (2); Sun, Shizheng (1)
Author affiliation: (1) School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University, China; (2) State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China; (3) Electric Power Research Institute, State Grid Chongqing Electric Power Company, China
Corresponding author: Chen, Zhaowei(chenzhaowei@my.swjtu.edu.cn)
Source title: JVC/Journal of Vibration and Control
Abbreviated source title: JVC/J Vib Control
Issue date: 2018
Publication year: 2018
Language: English
ISSN: 10775463
E-ISSN: 17412986
CODEN: JVCOFX
Document type: Article in Press
Publisher: SAGE Publications Inc.
Abstract: A tuned mass damper (TMD) is a widely used vibration reduction measure in bridge engineering, whose design is based on the modal property of bridge structure. As a consequence, bridge vibrations in certain frequencies are reduced, while vibrations in some other frequencies may be amplified according to the design methodology of the TMD. This paper systematically investigates the influence of these amplified frequencies on the dynamic performance of running trains subject to earthquake loads. Primarily, the design methodology of bridge-based designed TMD (BBD-TMD) is introduced. On this basis, a detailed train–track–bridge coupled dynamic model with attached BBD-TMD is established based on the multi-body dynamics theory and the finite element method. Finally, aiming at a practical engineering problem in China, the influence of BBD-TMD on running trains subject to earthquake loads is investigated. The results indicate that, for the bridge structure adopted in this study, the amplified frequency bands are similar to the natural frequencies of the car body in the train system. To design TMDs for railway bridges, the dynamic performance of running trains caused by these external installations should be seriously considered. ? 2018, The Author(s) 2018.
Main heading: Vehicle performance
Controlled terms: Dynamic response - Earthquakes - Miniature automobiles - Railroad bridges
Uncontrolled terms: Bridge dynamics - Dynamic performance - Earthquake load - Modal properties - Multi-body dynamic - Practical engineering problems - Tuned mass dampers - Vibration reduction measures
Classification code: 401.1 Bridges
Bridges
- 484 Seismology
Seismology
- 662.1 Automobiles
Automobiles
- 662.2 Smaller Vehicles
Smaller Vehicles
DOI: 10.1177/1077546318773022
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
3. Iterative learning scheme to design intermittent fault estimators for nonlinear systems with parameter uncertainties and measurement noise
Accession number: 20182205253803
Authors: Feng, Li (1, 3); Xu, Shuiqing (2, 3); Chai, Yi (3); Yang, Zhimin (3); Zhang, Ke (3)
Author affiliation: (1) College of Traffic and Transportation Chongqing Jiaotong University Chongqing China; (2) College of Electrical and Automation Engineering Hefei University of Technology Anhui China; (3) College of Automation Chongqing University Chongqing China
Corresponding author: Xu, Shuiqing(xsqanhui91@gmail.com)
Source title: International Journal of Adaptive Control and Signal Processing
Abbreviated source title: Int J Adapt Control Signal Process
Issue date: 2018
Publication year: 2018
Language: English
ISSN: 08906327
E-ISSN: 10991115
CODEN: IACPED
Document type: Article in Press
Publisher: John Wiley and Sons Ltd, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom
Abstract: In this paper, an iterative learning estimator is proposed to deal with period intermittent fault estimation problem in a class of nonlinear uncertain systems. First, state observer is designed for state reconstruction, followed by the Lyapunov function is presented to guarantee the convergence of the system output. Then, the iterative learning scheme-based fault estimator is presented to track the fault signal and the optimal function is established to ensure tracking error convergence. Moreover, linear matrix inequalities and Schur complements are utilized to obtain the sufficient conditions for the existence of iterative learning estimator. Compared with the existing results, error augmented systems should not satisfy the strictly positive realness assumption. Besides, previous state estimation error is used for current fault estimation such that to improve the estimating accuracy. Finally, 2 numerical examples are given to illustrate the effectiveness and validity of the proposed methods. ? 2018 John Wiley & Sons, Ltd.
Main heading: Nonlinear analysis
Controlled terms: Errors - Estimation - Iterative methods - Linear matrix inequalities - Lyapunov functions - Numerical methods - State estimation - Uncertain systems - Uncertainty analysis
Uncontrolled terms: Augmented systems - Fault estimation - Intermittent fault - Iterative learning - Nonlinear uncertain systems - Parameter uncertainty - Positive realness - State reconstruction
Classification code: 731.1 Control Systems
Control Systems
- 921 Mathematics
Mathematics
- 922.1 Probability Theory
Probability Theory
- 961 Systems Science
Systems Science
DOI: 10.1002/acs.2880
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
4. Coupled hydrodynamic and water quality simulation of algal bloom in the Three Gorges Reservoir, China
Accession number: 20182205262823
Authors: Li, Jian (1); Yang, Wenjun (2); Li, Wenjie (3); Mu, Lin (1); Jin, Zhongwu (2)
Author affiliation: (1) College of Marine Science and Technology, China University of Geosciences (Wuhan), No. 388 Lumo Road, Wuhan; 430074, China; (2) Changjiang River Scientific Research Institute, No.23 Huangpu Road, Wuhan; 430010, China; (3) National Inland Waterway Regulation Engineering Research Center, Chongqing Jiaotong University, Chongqing; 400074, China
Corresponding author: Li, Jian(lijian_cky@hotmail.com)
Source title: Ecological Engineering
Abbreviated source title: Ecol. Eng.
Volume: 119
Issue date: 15 August 2018
Publication year: 2018
Pages: 97-108
Language: English
ISSN: 09258574
CODEN: ECENEL
Document type: Journal article (JA)
Publisher: Elsevier B.V.
Abstract: Patterns of spatial and temporal variability of algal bloom in the Three Gorges Reservoir (TGR) of China were investigated using Semi-implicit Eulerian-Lagrangian Finite Element (SELFE) model, an unstructured grid, 3-dimensional, hydrodynamic model fully coupled with an extended version of Water Quality Analysis Program (WASP) and the Carbon and Nutrients DIagenesis (CANDI) model. The coupled model was driven by the discharge, operational water level of the TGR, nutrients and phytoplankton from the upstream, climate condition included the solar radiation, heat fluxes and precipitation observed in the hydrometric and meteorological stations. The simulations were conducted to study the dynamic process of the algal blooms occurred in September 2007 and June 2008, and the modeling results agreed well with the field data included nutrients, chlorophyll-a concentrations in the TGR. The results indicated that the nutrients and chlorophyll-a concentrations showed obvious difference in the mainstream and the tributaries affected by the diurnal evolution of the phytoplankton during the algal bloom period. The location of algal bloom in the tributary Xiangxi River where the maximum chlorophyll-a concentration was greater than 30 μg/L was about 20 km from the river mouth, which coincided with the position of backwater tail controlled by the operation of the TGR. Meanwhile, the nutrients concentration near the river bed reached nearly 10 times of the concentration near the water surface after considering the nutrients released from the re-suspended sediment and the biogeochemical process in the river bed sediment. Finally, the climate change affected the aquatic ecosystem in the TGR was investigated and the countermeasure to inhibit the algal bloom in the tributary was suggested through the scenario modeling. ? 2018 Elsevier B.V.
Number of references: 34
Main heading: Rivers
Controlled terms: Aquatic ecosystems - Chlorophyll - Climate change - Climate models - Hydrodynamics - Nutrients - Phytoplankton - Quality control - Reservoirs (water) - Suspended sediments - Water levels - Water quality
Uncontrolled terms: Algal blooms - CANDI - SELFE - Three gorges reservoir - WASP
Classification code: 441.2 Reservoirs
Reservoirs
- 443 Meteorology
Meteorology
- 443.1 Atmospheric Properties
Atmospheric Properties
- 445.2 Water Analysis
Water Analysis
- 454.3 Ecology and Ecosystems
Ecology and Ecosystems
- 471 Marine Science and Oceanography
Marine Science and Oceanography
- 483 Soil Mechanics and Foundations
Soil Mechanics and Foundations
- 804.1 Organic Compounds
Organic Compounds
- 913.3 Quality Assurance and Control
Quality Assurance and Control
- 921 Mathematics
Mathematics
Numerical data indexing: Mass_Density 3.00e-05kg/m3, Size 2.00e+04m
DOI: 10.1016/j.ecoleng.2018.05.018
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
5. The signaling game model under asymmetric fairness-concern information
Accession number: 20175004525492
Authors: Qin, Yanhong (1, 2); Wei, Guangxing (3); Dong, JingXin (4)
Author affiliation: (1) School of Management and Economics, University of Electronic Science and Technology of China, Sichuan; 611731, China; (2) School of Management, Chongqing University of Technology, Chongqing; 400054, China; (3) School of Economics and Management, Chongqing Jiaotong University, Chongqing; 400074, China; (4) Business School, Newcastle University, Newcastle upon Tyne; NE1 4SE, United Kingdom
Corresponding author: Qin, Yanhong(qinyanhong24@163.com)
Source title: Cluster Computing
Abbreviated source title: Cluster Comput.
Issue date: December 9, 2017
Publication year: 2017
Pages: 1-16
Language: English
ISSN: 13867857
E-ISSN: 15737543
Document type: Article in Press
Publisher: Springer New York LLC
Abstract: Under the wholesale price contract, we analyze the influence of the retailer’s fairness-concern information on the wholesale price, order quantity, the profit of each party and the supply chain in symmetry information (SI) condition and asymmetry information (AI) condition respectively. Then, we compute the value of retailer’s fairness-concern information to supplier, and we prove that the profit of all members and supply chain is decreasing with retailer’s fairness concern and the profit in SI condition is always higher than that in the AI condition. Then, we set the signaling game model to reveal the transmission mechanism of retailer’s fairness-concern information, and we analyze the potential separating equilibrium and pooling equilibrium existing in signaling model under asymmetric fairness-concern information. We prove that only when the signal transmission cost is different between retailers with different fairness-concern degree, the signaling model can effectively reveal the role and type of retailers. Finally, we provide some suggestions improve fairness-concern information transmission and optimize supply chain operation by discussing the condition of each separating equilibrium results. ? 2017 Springer Science+Business Media, LLC, part of Springer Nature
Main heading: Sales
Controlled terms: Costs - Profitability - Signaling - Supply chains
Uncontrolled terms: Asymmetry information - Fairness concerns - Information transmission - Signal transmission - Signaling game - Supply chain operation - Transmission mechanisms - Wholesale price contract
Classification code: 911 Cost and Value Engineering; Industrial Economics
Cost and Value Engineering; Industrial Economics
- 911.2 Industrial Economics
Industrial Economics
- 912 Industrial Engineering and Management
Industrial Engineering and Management
- 913 Production Planning and Control; Manufacturing
Production Planning and Control; Manufacturing
DOI: 10.1007/s10586-017-1365-7
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
6. Experimental comparison between aircraft fuel tank inerting processes using NEA and MIG
Accession number: 20182205257110
Authors: SHAO, Lei (1, 2); LIU, Weihua (1); LI, Chaoyue (1); FENG, Shiyu (1); WANG, Chenchen (1); PAN, Jun (3)
Author affiliation: (1) Key Laboratory of Aircraft Environment Control and Life Support of MIIT, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China; (2) College of Aeronautics, Chongqing Jiaotong University, Chongqing; 400074, China; (3) Jiangsu Province Key Laboratory of Aerospace Power System, Nanjing Engineering Institute of Aircraft Systems, Nanjing; 210016, China
Corresponding author: FENG, Shiyu(shiyuf@nuaa.edu.cn)
Source title: Chinese Journal of Aeronautics
Abbreviated source title: Chin J Aeronaut
Issue date: 2018
Publication year: 2018
Language: English
ISSN: 10009361
CODEN: CJAEEZ
Document type: Article in Press
Publisher: Chinese Journal of Aeronautics
Abstract: Fuel tank inerting technologies are able to reduce the fire risk by injection of inert gas into the ullage or fuel, the former called ullage washing and the latter fuel scrubbing. The Green On-Board Inert Gas Generation System (GOBIGGS) is a novel technology based on flameless catalytic combustion, and owning to its simple structure and high inerting efficiency, it has received a lot of attentions. The inert gas in the GOBIGGS is mainly comprised of CO2, N2, and O2(hereinafter, Mixed Inert Gas (MIG)), while that in the On-Board Inert Gas Generation System (OBIGGS), which is one of the most widely used fuel tank inerting technologies, is Nitrogen-Enriched Air (NEA). The solubility of CO2is nearly 20 times higher than that of N2in jet fuels, so the inerting capability and performance are definitely disparate if the inert gas is selected as NEA or MIG. An inerting test bench was constructed to compare the inerting capabilities between NEA and MIG. Experimental results reveal that, if ullage washing is adopted, the variations of oxygen concentrations on the ullage and in the fuel are nearly identical no matter the inert gas is NEA or MIG. However, the ullage and dissolved oxygen concentrations of MIG scrubbing are always higher than those of NEA scrubbing. ? 2018 Chinese Society of Aeronautics and Astronautics
Main heading: Inert gases
Controlled terms: Aircraft fuel tanks - Carbon dioxide - Catalysis - Dissolved oxygen - Experiments - Fuel tanks - Fuels - Gas generators - Oxygen - Washing
Uncontrolled terms: Catalytic combustion - Dissolved oxygen concentrations - Experimental comparison - Mixed Inert Gas (MIG) - Nitrogen-enriched - Oxygen concentrations - Simple structures - Technology-based
Classification code: 522 Gas Fuels
Gas Fuels
- 619.2 Tanks
Tanks
- 652.3 Aircraft Instruments and Equipment
Aircraft Instruments and Equipment
- 802.2 Chemical Reactions
Chemical Reactions
- 804 Chemical Products Generally
Chemical Products Generally
- 804.2 Inorganic Compounds
Inorganic Compounds
- 901.3 Engineering Research
Engineering Research
DOI: 10.1016/j.cja.2018.04.016
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
7. Experimental Behavior of Concrete-Filled Steel Tubular Members Subjected to Lateral Loads
Accession number: 20182205256195
Authors: Wang, Chengzhi (1); Liu, Xin (1); Li, Pengfei (1)
Author affiliation: (1) Chongqing Jiaotong University, Chongqing; 400074, China
Corresponding author: Wang, Chengzhi(wangcz@cqjtu.edu.cn)
Source title: Advances in Materials Science and Engineering
Abbreviated source title: Adv. Mater. Sci. Eng.
Volume: 2018
Issue date: 2018
Publication year: 2018
Article number: 9065378
Language: English
ISSN: 16878434
E-ISSN: 16878442
Document type: Journal article (JA)
Publisher: Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States
Abstract: The findings of an experimental study that was undertaken to investigate the performance of concrete-filled steel tubular members subjected to lateral loads are reported in this study. Columns of pure concrete, concrete with reinforcing bars, and two steel tube thicknesses were considered. Two different tests were conducted in this study. One test is used to research the performance of steel tube-reinforced concrete model piles under a lateral loading. The other test is used to research the effect of the depth of rock embedment for piles embedded in a foundation to simulate actual engineering applications in an experimental study. According to these test results, a detailed analysis was carried out on the relationships, such as the stress-strain and load-displacement relationships for the specimen. These tests show that the steel tube thickness and steel bars will significantly enhance the lateral bearing capacity and rigidity of the composite components. Additionally, the ultimate bending moment formula of a steel tube-reinforced concrete pile is deduced. The comparison of the calculated results with the experimental results shows that this formula is applicable for this type of pile foundation. ? 2018 Chengzhi Wang et al.
Number of references: 25
Main heading: Steel research
Controlled terms: Bars (metal) - Pile foundations - Piles - Reinforced concrete - Stress-strain curves - Testing - Tubular steel structures
Uncontrolled terms: Composite components - Concrete-filled steel tubular - Engineering applications - Lateral bearing capacity - Lateral loading - Lateral loads - Load displacements - Reinforcing bar
Classification code: 408.2 Structural Members and Shapes
Structural Members and Shapes
- 412 Concrete
Concrete
- 483.2 Foundations
Foundations
- 535.1.2 Rolling Mill Practice
Rolling Mill Practice
- 545.3 Steel
Steel
DOI: 10.1155/2018/9065378
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
8. A two stage Bayesian stochastic optimization model for cascaded hydropower systems considering varying uncertainty of flow forecasts
Accession number: 20145200375766
Authors: Xu, Wei (1, 2); Zhang, Chi (1); Peng, Yong (1); Fu, Guangtao (3); Zhou, Huicheng (1)
Author affiliation: (1) School of Hydraulic Engineering, Dalian University of TechnologyDalian China; (2) College of River and Ocean Engineering, Chongqing Jiaotong UniversityChongqing China; (3) Centre for Water Systems, College of Engineering, Mathematics, and Physical Sciences, University of ExeterExeter UK
Corresponding author: Zhang, Chi
Source title: Water Resources Research
Abbreviated source title: Water Resour. Res.
Issue date: 2014
Publication year: 2014
Language: English
ISSN: 00431397
E-ISSN: 19447973
CODEN: WRERAQ
Document type: Article in Press
Publisher: Blackwell Publishing Ltd
Abstract: This paper presents a new Two Stage Bayesian Stochastic Dynamic Programming (TS-BSDP) model for real time operation of cascaded hydropower systems to handle varying uncertainty of inflow forecasts from Quantitative Precipitation Forecasts. In this model, the inflow forecasts are considered as having increasing uncertainty with extending lead time, thus the forecast horizon is divided into two periods: the inflows in the first period are assumed to be accurate, and the inflows in the second period assumed to be of high uncertainty. Two operation strategies are developed to derive hydropower operation policies for the first and the entire forecast horizon using TS-BSDP. In this paper, the newly developed model is tested on China’s Hun River cascade hydropower system and is compared with three popular stochastic dynamic programming models. Comparative results show that the TS-BSDP model exhibits significantly improved system performance in terms of power generation and system reliability due to its explicit and effective utilization of varying degrees of inflow forecast uncertainty. The results also show that the decision strategies should be determined considering the magnitude of uncertainty in inflow forecasts. Further, this study confirms the previous finding that the benefit in hydropower generation gained from the use of a longer horizon of inflow forecasts is diminished due to higher uncertainty and further reveals that the benefit reduction can be substantially mitigated through explicit consideration of varying magnitudes of forecast uncertainties in the decision-making process. ? 2014. American Geophysical Union.
Main heading: Stochastic models
Controlled terms: Bayesian networks - Decision making - Dynamic programming - Hydroelectric power - Real time systems - Stochastic systems - Uncertainty analysis - Weather forecasting
Uncontrolled terms: Bayesian approaches - Hydropower - Quantitative precipitation forecast - Stochastic dynamic programming - Uncertainty modeling
Classification code: 443 Meteorology
Meteorology
- 611.1 Hydroelectric Power Plants
Hydroelectric Power Plants
- 722.4 Digital Computers and Systems
Digital Computers and Systems
- 912.2 Management
Management
- 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
Combinatorial Mathematics, Includes Graph Theory, Set Theory
- 921.5 Optimization Techniques
Optimization Techniques
- 922.1 Probability Theory
Probability Theory
- 961 Systems Science
Systems Science
DOI: 10.1002/2013WR015181
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
9. Effect of hydrogen addition on the combustion and emission of a diesel free-piston engine
Accession number: 20182205246123
Authors: Yuan, Chenheng (1); Han, Cuijie (1); Liu, Yang (1); He, Yituan (1); Shao, Yiming (1); Jian, Xiaochun (1)
Author affiliation: (1) College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing; 400074, China
Corresponding author: Yuan, Chenheng(990201500006@cqjtu.edu.cn)
Source title: International Journal of Hydrogen Energy
Abbreviated source title: Int J Hydrogen Energy
Issue date: 2018
Publication year: 2018
Language: English
ISSN: 03603199
CODEN: IJHEDX
Document type: Article in Press
Publisher: Elsevier Ltd
Abstract: The free-piston engine (FPE) is a new crankless engine, which operates with variable compression ratio, flexible fuel applicability and low pollution potential. A numerical model which couples with dynamic, combustion and gas exchange was established and verified by experiment to simulate the effects of different hydrogen addition on the combustion and emission of a diesel FPE. Results indicate that a small amount of hydrogen addition has a little effect on the combustion process of the FPE. However, when the ratio of hydrogen addition (RH2) is more than 0.1, the RH2gives a positive effect on the peak in-cylinder gas pressure, temperature, and nitric oxide emission of the FPE, while soot emission decreases with the increase of hydrogen addition. Moreover, the larger RH2induces a longer ignition delay, shorter rapid combustion period, weaker post-combustion effect, greater heat release rate, and earlier peak heat release rate for the FPE. Nevertheless, the released heat in rapid combustion period is significantly enhanced by the increase of RH2. ? 2018 Hydrogen Energy Publications LLC
Main heading: Ignition
Controlled terms: Combustion - Compression ratio (machinery) - Engine pistons - Free piston engines - Hydrogen - Neutron emission - Nitric oxide - Pistons
Uncontrolled terms: Combustion pro-cess - Effect of hydrogen - Heat release - Heat Release Rate (HRR) - Hydrogen addition - Nitric oxide emissions - Peak heat release rates - Variable compression ratio
Classification code: 521.1 Fuel Combustion
Fuel Combustion
- 612.1 Internal Combustion Engines, General
Internal Combustion Engines, General
- 612.1.1 Internal Combustion Engine Components
Internal Combustion Engine Components
- 804 Chemical Products Generally
Chemical Products Generally
- 804.2 Inorganic Compounds
Inorganic Compounds
DOI: 10.1016/j.ijhydene.2018.05.038
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
10. Smooth control design for adaptive leader-following consensus control of a class of high-order nonlinear systems with time-varying reference and unknown control directions
Accession number: 20182205248339
Authors: Zhao, Ling (1, 2); Huang, Jiangshuai (2)
Author affiliation: (1) School of Computer Science and Technology, Chongqing Jiaotong University, Chongqing, China; (2) School of Automation, Chongqing University, Chongqing, China
Corresponding author: Huang, Jiangshuai(jshuang@cqu.edu.cn)
Source title: Transactions of the Institute of Measurement and Control
Abbreviated source title: Trans Inst Meas Control
Issue date: April 1, 2018
Publication year: 2018
Language: English
ISSN: 01423312
CODEN: TICODG
Document type: Article in Press
Publisher: SAGE Publications Ltd
Abstract: In this paper, we investigate the distributed adaptive leader-following consensus control for high-order nonlinear multi-agent systems with a time-varying reference trajectory under directed topology, subjected to mismatched unknown parameters and unknown control directions. By introducing local estimators for the bounds of the reference trajectory and a filter for each agent, a new backstepping-based smooth distributed adaptive control protocol is proposed. Meanwhile, a Nussbaum-type function is applied to address the consensus control with unknown control directions. It is shown that global uniform boundedness of all the closed-loop signals and asymptotic output consensus tracking can be achieved. Simulation results are provided to verify the effectiveness of our scheme. ? 2018, The Author(s) 2018.
Main heading: Adaptive control systems
Controlled terms: Backstepping - Multi agent systems - Navigation - Nonlinear systems - Time varying control systems
Uncontrolled terms: Adaptive Control - Distributed adaptive control - High-order nonlinear system - Nonlinear multi-agent systems - Nussbaum-type functions - Reference trajectories - Time varying - Unknown control direction
Classification code: 731.1 Control Systems
Control Systems
- 961 Systems Science
Systems Science
DOI: 10.1177/0142331218765309
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
11. Sequential application of Fenton and ozone-based oxidation process for the abatement of Ni-EDTA containing nickel plating effluents
Accession number: 20182205246113
Authors: Zhao, Zilong (1, 2); Liu, Zekun (2); Wang, Hongjie (2, 3); Dong, Wenyi (2, 3); Wang, Wei (2)
Author affiliation: (1) School of Hehai, Chongqing Jiaotong University, Chongqing; 400074, China; (2) School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen; 518055, China; (3) Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen; 518055, China
Corresponding author: Wang, Hongjie(whj1533@qq.com)
Source title: Chemosphere
Abbreviated source title: Chemosphere
Volume: 202
Issue date: July 2018
Publication year: 2018
Pages: 238-245
Language: English
ISSN: 00456535
E-ISSN: 18791298
CODEN: CMSHAF
Document type: Journal article (JA)
Publisher: Elsevier Ltd
Abstract: Treatment of Ni-EDTA in industrial nickel plating effluents was investigated by integrated application of Fenton and ozone-based oxidation processes. Determination of integrated sequence found that Fenton oxidation presented higher apparent kinetic rate constant of Ni-EDTA oxidation and capacity for contamination load than ozone-based oxidation process, the latter, however, was favorable to guarantee the further mineralization of organic substances, especially at a low concentration. Serial-connection mode of two oxidation processes was appraised, Fenton effluent after treated by hydroxide precipitation and filtration negatively affected the overall performance of the sequential system, as evidenced by the removal efficiencies of Ni2+and TOC dropping from 99.8% to 98.7%, and from 74.8% to 66.6%, respectively. As a comparison, O3/Fe2+oxidation process was proved to be more effective than other processes (e.g. O3-Fe2+, O3/H2O2/Fe2+, O3/H2O2-Fe2+), and the final effluent Ni2+concentration could satisfied the discharge standard (?1, China) under the optimal conditions (H2O2dosage of 1.0 mL L?1, Fe2+: H2O2mole ratio of 1.46, and reaction time of 10 min for Fenton reaction, initial influent pH of 3.0, O3dosage of 252 mg L?1, Fe2+of 150 mg L?1, and reaction time of 30 min for O3/Fe2+oxidation). Furthermore, pilot-scale test was carried out to study the practical treatability towards the real nickel plating effluent, revealing the effective removal of some other co-existence contaminations. And Fenton reaction has contributed most, with the percentage ranging from 72.41% to 93.76%. The economic cost advantage made it a promising alternative to the continuous Fenton oxidation. ? 2018 Elsevier Ltd
Number of references: 29
Main heading: Oxidation
Controlled terms: Effluents - Filtration - Iron compounds - Nickel plating - Ozone - Rate constants
Uncontrolled terms: Contamination loads - Discharge standards - Fenton - Hydroxide precipitation - Integrated applications - Integrated systems - Removal efficiencies - Sequential applications
Classification code: 452.3 Industrial Wastes
Industrial Wastes
- 539.3 Metal Plating
Metal Plating
- 802.2 Chemical Reactions
Chemical Reactions
- 802.3 Chemical Operations
Chemical Operations
- 804 Chemical Products Generally
Chemical Products Generally
Numerical data indexing: Percentage 7.24e+01% to 9.38e+01%, Percentage 7.48e+01% to 6.66e+01%, Percentage 9.98e+01% to 9.87e+01%, Time 1.80e+03s, Time 6.00e+02s
DOI: 10.1016/j.chemosphere.2018.03.090
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
三、ISTP3条
*Record 1 of 3. Search terms matched: CHONGQING 400074(1); CHONGQING JIAOTONG(1)
*Click Here to View Full Record
*Order Full Text [ ]
Title: The Signaling Game Model under Asymmetric Fairness-Concern Information
Authors: Qin, YH; Wei, GX
Author Full Names: Qin, Yanhong; Wei, Guangxing
Edited by: Yang Z
Source: PROCEEDINGS OF 2017 CHINA MARKETING INTERNATIONAL CONFERENCE: MARKETING STRATEGY IN THE SHARING ECONOMY: LOCALIZATION AND GLOBALIZATION, 906-909; 2017
Book Series: Proceedings of China Marketing International Conference
Language: English
ISSN: 2357-190X
eISSN: 2357-1918
IDS Number: BK1IK
Unique ID: WOS:000431839700075
*Record 2 of 3. Search terms matched: CHONGQING 400074(1); CHONGQING JIAOTONG(1)
*Click Here to View Full Record
*Order Full Text [ ]
Title: Stability Criterion in Lagrange Sense for Complex-Valued Neural Networks with Mixed Time-Varying Delays
Authors: Zhao, ZJ; Song, QK
Author Full Names: Zhao Zhenjiang; Song Qiankun
Edited by: Liu T; Zhao Q
Source: PROCEEDINGS OF THE 36TH CHINESE CONTROL CONFERENCE (CCC 2017), 3859-3863; 2017
Book Series: Chinese Control Conference
Language: English
Abstract: In this paper, the global exponential stability in Lagrange sense for complex-valued neural networks with discrete time-varying delays and distributed time-varying delays is investigated. A criterion to ensure the global exponential stability in Lagrange sense for complex-valued neural networks with discrete time-varying delays and distributed time-varying delays is obtained by employing Lyapunov-Krasovskii functional and using free-weighting-matrix approach and matrix inequality techniques. The condition is expressed in complex-valued linear matrix inequalities, which can be checked numerically using the effective YALMIP toolbox in MATLAB.
ISSN: 2161-2927
ISBN: 978-9-8815-6393-4
IDS Number: BK1PX
Unique ID: WOS:000432014404085
*Record 3 of 3. Search terms matched: CHONGQING 400074(1); CHONGQING JIAOTONG(1)
*Click Here to View Full Record
*Order Full Text [ ]
Title: Design and Analysis of Intelligent Operation and Maintenance Platform System
Authors: Peng, CN; Fan, J; Fan, QX; Huang, DR; Zhao, D
Author Full Names: Peng Chuning; Fan Jie; Fan Qixin; Huang Darong; Zhao Dong
Edited by: Liu T; Zhao Q
Source: PROCEEDINGS OF THE 36TH CHINESE CONTROL CONFERENCE (CCC 2017), 7376-7381; 2017
Book Series: Chinese Control Conference
Language: English
Abstract: In order to solve the problem that a variety of automated equipment to coordinate the operation of instability, monitoring is not timely, combined with "four lines a library" within the resources to design a system to coordinate the operation of the system. The system as the professional and technical supporting platform for intelligent operation and maintenance of "four lines a library", will fully support the daily operation and maintenance operations of equipment and operation and maintenance management. The system function module design includes: operation information, work order management, job management, equipment file management, spare parts management, knowledge base, statistical analysis, operation and maintenance quality management, auxiliary management, system management, mobile application 11 primary function modules, 46 secondary function modules.
ISSN: 2161-2927
ISBN: 978-9-8815-6393-4
IDS Number: BK1PY
Unique ID: WOS:000432015501089
