一、SCI 5条
*Record 1 of 5. Search terms matched: CHONGQING 400074(3); CHONGQING JIAOTONG(3)
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Title: Scheduling Parallel Computations by Work Stealing: A Survey
Authors: Yang, JX; He, QB
Author Full Names: Yang, Jixiang; He, Qingbi
Source: INTERNATIONAL JOURNAL OF PARALLEL PROGRAMMING, 46 (2):173-197; SI 10.1007/s10766-016-0484-8 APR 2018
Language: English
Abstract: Work stealing has been proven to be an efficient technique for scheduling parallel computations, and has been gaining popularity as the multiprocessor/multicore-processor load balancing technology of choice in both industry and academia. A review on the work stealing scheduling is provided from the perspective of scheduling algorithms, optimization of algorithm implementation and processor architecture oriented optimization. The future research trends and recommendations driven by theory, emerging applications and motifs, architecture and heterogeneous platforms are also provided.
ISSN: 0885-7458
eISSN: 1573-7640
IDS Number: FZ6MT
Unique ID: WOS:000427714000001
*Record 2 of 5. Search terms matched: CHONGQING JIAOTONG(1)
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Title: An experimental study on the corrosion amount using a statistical analysis
Authors: Zhu, HJ; Liu, X; Jia, CL; Du, BS; Liu, SM; Qian, Y
Author Full Names: Zhu, Hongjun; Liu, Xin; Jia, Chaolong; Du, Baisong; Liu, Simeng; Qian, Ying
Source: CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 53 (1):26-35; 10.1080/1478422X.2017.1367113 2018
Language: English
Abstract: A non-destructive estimation of the corrosion amount in the existing RC structure is highly desired and therefore this paper presents a proof-of-concept experimental demonstration of such a method, which is based on the eddy heat imaging (EHI) technique. Its basic principle is to convey a corrosion signal to the surface of RC structures by eddy heating. To develop the EHI method, the first key step is to address the question of whether the rate of change in surface temperature is strongly associated with the corrosion amount. In order to make the problem tractable, special equipment was designed, from which 81 observations were obtained for data analysis. After the statistical analysis of the observational data and preliminary application on an in-service bridge, the results show that the EHI method is a promising approach to the quantitative measurement of the corrosion amount of RC structures.
ISSN: 1478-422X
eISSN: 1743-2782
IDS Number: FZ8DB
Unique ID: WOS:000427834800003
*Record 3 of 5. Search terms matched: CHONGQING JIAOTONG(2)
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Title: Heterogeneity characteristics of flow and transport fields through rough-walled fractures
Authors: Yu, C; Li, D
Author Full Names: Yu, Cheng; Li, Dong
Source: EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING, 22 (5):614-627; 10.1080/19648189.2016.1214182 2018
Language: English
Abstract: Due to the impact of rock surface roughness, fracture flow and transport fields are always heterogeneous with tortuous flow-lines. Typically as fracture apertures decrease, fracture flow tends to concentrate at preferential channels. Difficulty in studying fracture flow lies in the quantitative description of the evolution of preferential channels. In this study statistical measures are defined to capture the distributed characteristics of flow tortuosity and concentration. Tortuosity is defined as a ratio of flow-line length to some constant characteristic length of flow field, and the concentration is defined as spatial entropy of local parameters like local apertures, velocities or fluxes. Moreover, the spatial entropy production of local apertures is defined as the preferential channel maturity, which quantitatively indicates the evolution of preferential channels. Results suggest the tortuosity and spatial entropies of local flow field are all of significant positive relationships with preferential channel maturity. A similar positive relationship is found between solute transport contours' tortuosity and preferential channel maturity as well, which suggests the preferential channels bring additional dispersion to solute transport. At last a simple conceptual model is discussed to show how fracture roughness and preferential channels affect the fracture flow and solute transport.
ISSN: 1964-8189
eISSN: 2116-7214
IDS Number: FZ8IC
Unique ID: WOS:000427850500006
*Record 4 of 5. Search terms matched: CHONGQING 400074(3); CHONGQING JIAOTONG(3)
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Title: First-Principles Study on Band Structure of M-Doped TiO2 (M = Ag, Co, Cr, Mn, Sb, Zn)
Authors: Xia, YC; Feng, RS; Wu, CS
Author Full Names: Xia, Yu-Chao; Feng, Rui-Sheng; Wu, Chuan-Sheng
Source: JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS, 12 (11):1181-1185; 10.1166/jno.2017.2273 NOV 2017
Language: English
Abstract: The electronic structures of rutile TiO2 doped with metals were investigated by means of the first-principle calculations based on density functional theory. Calculations were performed with the Materials Studio program package in CASTEP module. The results indicate that band gap of TiO2 was reduced by doping metals such as Sb, Zn, Mn, Co, Ni and Ag, and the position of DOS shifted to lower place. These effects facilitated the migration of charge carriers and enhanced photo activity. From our calculated results, we can definite the mechanism of metal-doped influence on the photo activity.
ISSN: 1555-130X
eISSN: 1555-1318
IDS Number: FZ4RT
Unique ID: WOS:000427580200002
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Title: Theoretical Approach of Soil Slope Slip Monitoring Based on Composite Optical Fiber Devices
Authors: Feng, ZY; Wu, CS; Zhu, ZW; Xia, YC; Wang, Y
Author Full Names: Feng, Zhenyang; Wu, Chuansheng; Zhu, Zhengwei; Xia, Yuchao; Wang, Yu
Source: JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS, 12 (11):1274-1279; 10.1166/jno.2017.2245 NOV 2017
Language: English
Abstract: In this paper, the laboratory test of the soil slope under the condition of vertical and horizontal laying composite optical fiber devices were carried out, and the response mechanism of the optical loss during the slipping of the soil slope was revealed. Based on the response mechanism and the deformation characteristics of the soil slope, a numerical method for the prediction of slope deformation based on the Mohr-Coulomb yield criterion and the initial stress method was proposed. The method can be applied to the long-term monitoring of the soil slope during the service period, and it is possible to realize the information construction which can make the construction of the fill slope to achieve construction, forecast and amendment at the same time. At the same time, the results of laboratory test can also evaluate the deformation process of slope before the slope is monitored, and realized the prediction function of risk after starting monitoring.
ISSN: 1555-130X
eISSN: 1555-1318
IDS Number: FZ4RT
Unique ID: WOS:000427580200020
二、EI 5条
1. Fault diagnosis for the motor drive system of urban transit based on improved Hidden Markov Model
Accession number: 20181304954968
Authors: Darong, Huang (1); Lanyan, Ke (1); Xiaoyan, Chu (1); Ling, Zhao (1); Bo, Mi (1)
Author affiliation: (1) Institute of Information Science and Engineering, Chongqing Jiaotong University, Chongqing; 400074, China
Corresponding author: Darong, Huang(drhuang@cqjtu.edu.cn)
Source title: Microelectronics Reliability
Abbreviated source title: Microelectron. Reliab.
Volume: 82
Issue date: March 2018
Publication year: 2018
Pages: 179-189
Language: English
ISSN: 00262714
CODEN: MCRLAS
Document type: Journal article (JA)
Publisher: Elsevier Ltd
Abstract: Fault diagnosis for the motor drive system of urban rail transit could reduce the hidden danger and avoid the disaster events as far as possible. In this paper, an improved Hidden Markov Model (HMM) algorithm is proposed for fault diagnosis of motors equipment for urban rail transit. In this approach, the initial value for observation matrix B in HMM is selected based on the predictive neural network and intuitionistic fuzzy sets. Firstly, by predictive neural network the observation probability matrix B is described qualitatively based on its mathematical explanation. Then, the quartering approach is introduced to define the rules between non-membership degree and observation probability matrix B, which obtains the matrix B quantitatively. Next, the selection algorithm for matrix B is given. Finally, the experiments about the motor drive system fault diagnosis of the urban rail transit are made to prove the feasibility for the proposed algorithm. ? 2018 Elsevier Ltd
Number of references: 26
Main heading: Fault detection
Controlled terms: Disaster prevention - Electric drives - Electric motors - Failure analysis - Fuzzy inference - Fuzzy sets - Hidden Markov models - Light rail transit
Uncontrolled terms: Intuitionistic fuzzy sets - Membership degrees - Motor drive system - Observation matrix - Predictive neural network - Probability matrixes - Selection algorithm - Urban rail transit
Classification code: 433.1 Railroad Transportation, General
Railroad Transportation, General
- 705.3 Electric Motors
Electric Motors
- 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory
- 914.1 Accidents and Accident Prevention
Accidents and Accident Prevention
- 922 Statistical Methods
Statistical Methods
DOI: 10.1016/j.microrel.2018.01.017
Funding Details: Number; Acronym; Sponsor: 61304104; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61573076; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61663008; NSFC; National Natural Science Foundation of China
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
2. Seasonal dynamics of carbon dioxide concentration and its influencing factors in urban park green spaces in Northeast China
Accession number: 20181304950916
Authors: Gu, Han (1, 2); Zheng, Wen Yu (1); Xu, Da Wei (1); Huang, Ying (3); Zheng, LiYuan (4); Ma, Jian (5)
Author affiliation: (1) Postdoctoral Program of Landscape Architecture, Northeast Forestry University, Harbin; 150040, China; (2) College of Architecture and Planning, Chongqing Jiaotong University, Chongqing; 400074, China; (3) College of Art and Design, Nanjing Forestry University, Nanjing; 210037, China; (4) Northeast Forestry University Library, Harbin; 150040, China; (5) Department of Mathematics, Ohio State University, Columbus; OH; 43210, United States
Corresponding author: Xu, Da Wei
Source title: Nature Environment and Pollution Technology
Abbreviated source title: Nat. Environ. Pollut. Technol.
Volume: 17
Issue: 1
Issue date: March 2018
Publication year: 2018
Pages: 329-337
Language: English
ISSN: 09726268
E-ISSN: 23953454
Document type: Journal article (JA)
Publisher: Technoscience Publications, 2, Shila Apartment,Shila Nagar, District Satara, Maharastra, 415 110, India
Abstract: Urban green space, as an important component of an urban ecosystem, plays an important role in improving the urban living environment, maintaining ecological balance and reducing carbon dioxide concentration. Few studies are focused on carbon dioxide emissions in urban green spaces of cold regions. To thoroughly understand the temporal and spatial variation laws of carbon dioxide concentration and its influencing factors in urban green spaces in cold regions, a LI-COR LI-840 non-dispersive infrared gas analyser was used to explore the variations in the carbon dioxide concentrations of different plant community green spaces at the syringa Park in Qunli New District of Harbin and their influencing factors. Diurnal variation, seasonal variation, annual dynamics, and temporal and spatial distributions of carbon dioxide concentration in the growing season of four types of park green spaces, namely, larix, birch, syringa, and grassland communities, were observed through experiments. Air temperature, surface temperature, air humidity, and atmospheric pressure in the four types of green spaces were measured to further analyse the correlation among the diurnal variation of carbon dioxide concentration, seasonal variation of carbon dioxide concentration, and the corresponding factors of different vegetation types in parks. Moreover, the annual regression equation of carbon dioxide concentration was established. Results show that the carbon dioxide concentration in different community green spaces exhibits an obvious diurnal variation and a tendency of decreasing first and then increasing over time. The seasonal dynamics of carbon dioxide concentration in different types of park green spaces are different. The carbon dioxide concentration of the larix green space is the lowest (dynamics), whereas that of the grassland space is the highest (357.17±30.18 μmol/mol). The larix seasonal dynamics demonstrates the change with the seasons, from highest to lowest as autumn>spring>summer. Temperature is the main controlling factor that affects the variation in carbon dioxide concentration in the growing season. The carbon dioxide concentrations of larix, birch, syringa and grassland show a highly significant positive correlation with surface and air temperatures. A significantly positive correlation is also observed between atmospheric pressure and variation in carbon dioxide concentration in larix and birch. This study provides data reference and support for spatial ecological planning and layout and the selection of plants in urban park green spaces. ? 2018 Technoscience Publications. All rights reserved.
Number of references: 24
Main heading: Carbon dioxide
Controlled terms: Atmospheric humidity - Atmospheric pressure - Atmospheric temperature - Dynamics - Ecology - Global warming - Temperature - Urban planning
Uncontrolled terms: Carbon dioxide concentrations - Carbon dioxide emissions - Ecological benefits - Main controlling factors - Temporal and spatial distribution - Temporal and spatial variation - Urban green spaces - Winter cities
Classification code: 403.1 Urban Planning and Development
Urban Planning and Development
- 443.1 Atmospheric Properties
Atmospheric Properties
- 454.3 Ecology and Ecosystems
Ecology and Ecosystems
- 641.1 Thermodynamics
Thermodynamics
- 804.2 Inorganic Compounds
Inorganic Compounds
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
3. Weathering mechanism of soft rock under the combined effect of pressure and temperature
Accession number: 20181304946215
Authors: Lin-Feng, Wang (1); Hao, Sun (1); Chang-Yin, Yao (1); Hong-Hua, Jin (1); Hong-Mei, Tang (1); Zong-Jian, Wang (1, 2)
Author affiliation: (1) School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing; 400074, China; (2) Maeda Kohsen Co. Ltd, Fukui; 9190422, Japan
Corresponding author: Lin-Feng, Wang(wanglinfeng715@163.com)
Source title: Journal of Engineering Science and Technology Review
Abbreviated source title: J. Eng. Sci. Technol. Rev.
Volume: 11
Issue: 1
Issue date: 2018
Publication year: 2018
Pages: 165-173
Language: English
ISSN: 17919320
E-ISSN: 17912377
Document type: Journal article (JA)
Publisher: Eastern Macedonia and Thrace Institute of Technology
Abstract: Cause analysis and depth calculation of rock cell can significantly help demonstrate the weathering mechanism of the soft rock of the rock cell. However, the current methods of analyzing weathering mechanism attach little importance to the mechanical environment of rock. Damage mechanics typically involves the calculation of a damage factor. To explore the weathering mechanism of soft rock at the lower part of gently inclining rock slope, this study based on the calculation method of a damage factor in damage mechanics, proposed a calculation formula for the damage factor of soft rock under the combined effect of pressure and temperature and the method for fatigue rupture. Then, taking the mudstone of a single rock cell in Hongyan Mountain of Jiangjin in China as an example, the calculation formula and method for soft rock were used to analyze its weathering mechanism. The analytical parameters included weathering rate, damage, and fatigue rupture of soft rock. Results show that the maximum influencing depth of temperature on soft rock is approximately 1.00-1.20 m, and the weathering rate of the soft rock is faster at the beginning of temperature fatigue loading. Weathering rate slows down with the fatigue number increasing. At the lower-level temperature difference, the weathering process of soft rock accelerates when the rock shifts from low to high temperature. However, when the soft rock is in large temperature difference, the weathering process accelerates at the relatively lower rate. The damage of the soft rock is linearly related to the pressure from the upper hard rock. Conclusions of this study provide a theoretical basis for the prevention and treatment of collapsed hazards of gently inclining rock slope. ? 2018 Eastern Macedonia and Thrace Institute of Technology.
Number of references: 26
Main heading: Weathering
Controlled terms: Fatigue damage - Pressure - Pressure effects - Rocks - Temperature
Uncontrolled terms: Analytical parameters - Calculation formula - Damage - Mechanical environment - Rock slope - Soft rocks - Temperature differences - Weathering mechanisms
Classification code: 641.1 Thermodynamics
Thermodynamics
- 931.1 Mechanics
Mechanics
- 951 Materials Science
Materials Science
DOI: 10.25103/jestr.111.20
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
4. Effects of HfC nanowire amount on the microstructure and ablation resistance of CVD-HfC coating
Accession number: 20181304949500
Authors: Ren, Jincui (1); Zhang, Yulei (1); Zhang, Jian (1); Fu, Yanqin (1); Tian, Song (2)
Author affiliation: (1) State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi’an; 710072, China; (2) School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing; 400074, China
Corresponding author: Zhang, Yulei(zhangyulei@nwpu.edu.cn)
Source title: Ceramics International
Abbreviated source title: Ceram Int
Issue date: 2018
Publication year: 2018
Language: English
ISSN: 02728842
CODEN: CINNDH
Document type: Article in Press
Publisher: Elsevier Ltd
Abstract: To improve the ablation resistance of HfC coating for carbon/carbon (C/C) composites, various fractions of HfC nanowires were incorporated into the HfC coating by chemical vapor deposition (CVD). Effects of HfC nanowire amount on the microstructure and ablation resistance of the CVD-HfC coating were investigated. Results indicated that the HfC nanowire layer became thicker and denser with the deposition time extending. HfC nanowires could inhibit the formation of cracks and interlaminar gaps in the HfC coating. With the increase of HfC nanowire amount, the HfC coating became thicker, while its porosity and roughness firstly decreased and then increased. Ablation tests indicated that the incorporation of HfC nanowires could effectively improve the ablation resistance of the HfC coating, which could be ascribed to the decreasing surface temperature of the coated samples and the effective alleviation of cracking and delamination of the coating during ablation. The HfC coating with HfC nanowires deposited for 1 h exhibited better ablation resistance owing to its compact microstructure, and its mass and linear ablation rates were only 0.41 mg/s and ? 1.53 μm/s after ablation for 120 s. ? 2018 Elsevier Ltd and Techna Group S.r.l.
Main heading: Hafnium compounds
Controlled terms: Ablation - Carbon carbon composites - Chemical vapor deposition - Coatings - Cracks - Deposition - Failure (mechanical) - Microstructure - Nanowires - Vapor deposition
Uncontrolled terms: Ablation rates - Ablation resistance - Carbon/carbon - Chemical vapor depositions (CVD) - Coated sample - Compact microstructure - Deposition time - Surface temperatures
Classification code: 415.4 Structural Materials Other Than Metal, Plastics or Wood
Structural Materials Other Than Metal, Plastics or Wood
- 641.2 Heat Transfer
Heat Transfer
- 761 Nanotechnology
Nanotechnology
- 802.2 Chemical Reactions
Chemical Reactions
- 802.3 Chemical Operations
Chemical Operations
- 813.2 Coating Materials
Coating Materials
- 933 Solid State Physics
Solid State Physics
- 951 Materials Science
Materials Science
Numerical data indexing: Mass_Flow_Rate 4.10e-07kg/s, Time 1.20e+02s, Time 3.60e+03s
DOI: 10.1016/j.ceramint.2018.03.183
Funding Details: Number; Acronym; Sponsor: 51502028; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 51672223; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 5172780072; NSFC; National Natural Science Foundation of China
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
5. Ultrahigh-capacity and fast-rate removal of graphene oxide by calcined MgAl layered double hydroxide
Accession number: 20181304955273
Authors: Yuan, Xiaoya (1); Niu, Jiawei (1); Lv, Yajie (1); Jing, Qiuye (1); Li, Li (1)
Author affiliation: (1) College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing; 400074, China
Corresponding author: Yuan, Xiaoya(yuanxy@cqjtu.edu.cn)
Source title: Applied Clay Science
Abbreviated source title: Appl. Clay Sci.
Volume: 156
Issue date: May 2018
Publication year: 2018
Pages: 61-68
Language: English
ISSN: 01691317
CODEN: ACLSER
Document type: Journal article (JA)
Publisher: Elsevier Ltd
Abstract: Graphene oxide (GO) as an important derivative of graphene is potential toxic to cells and animals. In this study, MgAl-mixed metal oxide (MgAl-MMO) prepared by one-step calcination of MgAl-layered double hydroxide (MgAl-LDH) at 500 °C was employed to remove GO from aqueous solution. The effect of contact time, sorbent dosage, initial GO solution pH and co-existing anions on the removal capacity of MgAl-MMO composite was investigated in detail. The results showed that the sorbent dosage and the initial solution pH had significant effect on the adsorption process. MgAl-LDH composite exhibited ultrahigh GO adsorption capacity (984.2 mg/g at pH = 2) with low dosage (25 mg/L) and fast GO-eliminating rate (within 5 h). MgAl-MMO composite could be recycled by simply calcining the rehydrated production and reused for 5 times without significant loss of the removal capacity. This adsorption process could be well fitted by the pseudo-second-order model. The mechanism study further showed that the excellent removal performance of MgAl-MMO composite came from the memory effect of calcined LDH and pH-induced aggregation of GO. ? 2018
Number of references: 47
Main heading: Adsorption
Controlled terms: Agglomeration - Aluminum alloys - Binary alloys - Calcination - Chemicals removal (water treatment) - Graphene - Graphene oxide - Magnesium alloys - Metals - pH effects - Removal - Solutions
Uncontrolled terms: Adsorption capacities - Adsorption process - Mechanism studies - Memory effects - Mg-Al layered double hydroxide - Mixed metal oxide - Pseudo-second order model - Removal performance
Classification code: 541.2 Aluminum Alloys
Aluminum Alloys
- 542.2 Magnesium and Alloys
Magnesium and Alloys
- 761 Nanotechnology
Nanotechnology
- 801.1 Chemistry, General
Chemistry, General
- 802.3 Chemical Operations
Chemical Operations
- 803 Chemical Agents and Basic Industrial Chemicals
Chemical Agents and Basic Industrial Chemicals
- 804 Chemical Products Generally
Chemical Products Generally
DOI: 10.1016/j.clay.2018.01.018
Funding Details: Number; Acronym; Sponsor: 51402030; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 51778096; NSFC; National Natural Science Foundation of China
Compendex references: YES
Database: Compendex
Compilation and indexing terms, Copyright 2018 Elsevier Inc.
Data Provider: Engineering Village
三、ISTP1条
*Record 1 of 1. Search terms matched: CHONGQING JIAOTONG(2)
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Title: Research on the Integration and Development between Mobile Internet Technology and Transportation Services in China
Authors: Li, WW; Zhou, YF
Author Full Names: Li, Weiwei; Zhou, Yanfang
Edited by: Tang J; Chen J; Cai X
Source: 2017 14TH INTERNATIONAL CONFERENCE ON SERVICES SYSTEMS AND SERVICES MANAGEMENT (ICSSSM), 2017
Book Series: International Conference on Service Systems and Service Management
Language: English
Abstract: Mobile Internet technology is an important tool and means to improve transportation services. Traditional transport service industry will also be based on the Internet platform to realize the transformation and reconstruction of the operating mode. In this paper, the impact of mobile Internet technology on transportation services industry is analyzed in detail. Moreover, how to create the environment is conducive to the integrated development of the transport services and mobile Internet technology, how to innovate the supervision ideas and supervision technical means, the above two aspects of the problem were discussed in detail. Finally, this study proposes the countermeasures and policy suggestions that may improve the transportation service level and industry management level for the two respects.
ISSN: 2161-1890
IDS Number: BJ7DO
Unique ID: WOS:000427112300102
