期刊文献+
共找到8,798篇文章
< 1 2 250 >
每页显示 20 50 100
STUDY OF SETTING UP THE FOREST RESOURCES MANAGEMENT INFORMATION SYSTEM BASED ON WEBGIS 被引量:7
1
作者 WU Su-li, LOU Quan-sheng, QUAN Zhi-jie, LI Xiao-jun (Northwest Sci-tech University of Agriculture and Forestry, Xi’an 712100, P. R. China) 《Chinese Geographical Science》 SCIE CSCD 2003年第1期56-61,共6页
Based on an analysis of the characteristics of the Forest Resources Management Information System of each development phase, and consideration of the technical trend in Geographic Information System (GIS) in the Inter... Based on an analysis of the characteristics of the Forest Resources Management Information System of each development phase, and consideration of the technical trend in Geographic Information System (GIS) in the Internet Age, this paper explores the importance and the feasibility of setting up Forest Resources Management Information System based on the WEBGIS. At the same time, based on the experience of our study, the paper explores the function, structure and method of developing the Forest Resources Management Information System based on WEBGIS. With the technology of WEBGIS, the Forest Resources Management Information System with data from Huoditang Farm was set up, which makes a great impact on forest resources management. So setting up the Forest Resources Management Information System based on WEBGIS is a trend of forest resources management. In the course of setting up this system, we must pay attention to following questions: 1) unify data standard and information encoding; 2) change mind. 展开更多
关键词 WEBGIS forest resources management information system
下载PDF
Contribution of Geographic Information Systems for the Management of Water Resources: Case of Groundwater Resources of the Plain of Mascara (Algeria)
2
作者 Baghdadi Boukerma 《Journal of Earth Science and Engineering》 2014年第4期245-255,共11页
The plain of Mascara includes groundwater resources, heavily exploited for the needs of the population, industry and agriculture. However, this resource is under threat from the point of view of quality and quantity. ... The plain of Mascara includes groundwater resources, heavily exploited for the needs of the population, industry and agriculture. However, this resource is under threat from the point of view of quality and quantity. The degradation of water quality comes from water discharges untreated (domestic and/or industrial) and from the irrational use of fertilizers and pesticides in agriculture. The decrease in reserves is due to the effects of intensive exploitation. Several studies on the water resources of the plain generated a mass of very important data. In most cases, these data are disparate at different institutions managers (water resources, environment, etc.), and are found recorded in paper documents, difficult to exploit. For this reason, it would be essential to use reliable new techniques, namely the GIS (geographic information systems). The implementation of the GIS of the plain of Mascara (with extension to all the sub-basin of Wadi Fekan) must permit to organize the data and transform it into information. Integration, crossing and superposition of the data with other variables may contribute to spatial analysis and generate very important thematic maps. The GIS constitutes a very effective decision aid tool for the management, exploitation, preservation and protection of water resources. The exploitation possibilities of GIS are multiple, direct or indirect. We give an example as the coupling with a groundwater flow model that may be the subject of additional work. 展开更多
关键词 management resourceS WATER geographic information systems Mascara.
下载PDF
The Implementation of Human Resource Management Information System
3
作者 Hsiu-Li Liao Su-Houn Liu Ling Chen 《Management Studies》 2020年第2期116-120,共5页
Human resource management has begun to conduct information technology to enhance the efficiency of human resource work.The research objectives are:(1)Does the implementation of human resource management information sy... Human resource management has begun to conduct information technology to enhance the efficiency of human resource work.The research objectives are:(1)Does the implementation of human resource management information system enhance work efficiency?(2)What are key factors to influence the implementation of human resource management information system?This research adopts case study with in-depth interviews at W University of Science and Technology.The interviewees of this study were mainly one director and four staffs working at the Department of Human Resource.The research results show that the system quality is acceptable and the system security is perfect.All users have consistent opinions on the bad quality of information and they spend more time to check the data at work.The system use frequency of each user is different,mainly depending on the content of their work.Users who are used less have higher user satisfaction in human resource management information system.Most users perceive that the personal benefit is increased,and feel that this system can enhance personal benefits and improve the organization benefits for personnel management. 展开更多
关键词 human resource management system quality information quality PERSONAL
下载PDF
The Sharing Management of Digital Communication Network Resource
4
作者 ZHONG Juan LAI Honghui 《International English Education Research》 2014年第5期96-98,共3页
Along with the mature development of the domestic computer technology and communication technology, it is an inevitable trend to integrate the two major information technologies together in the future reform of the so... Along with the mature development of the domestic computer technology and communication technology, it is an inevitable trend to integrate the two major information technologies together in the future reform of the social communication model. Under this background, the principle of digital communication is introduced first in this paper, and accordingly the role of the communication network resources sharing is analyzed, and finally the sharing management of digital communication network resources is proposed. Hopefully. this paper can play a help in the future subsequent study. 展开更多
关键词 Digital Communication network resources SHARING management
下载PDF
The Sharing Management of Digital Communication Network Resource
5
作者 ZHONG Juan LAI Honghui 《International Journal of Technology Management》 2013年第6期121-123,共3页
Along with the mature development of the domestic computer technology and communication technology, it is an inevitable trend to integrate the two major information teclmologies together in the future reform of the so... Along with the mature development of the domestic computer technology and communication technology, it is an inevitable trend to integrate the two major information teclmologies together in the future reform of the social communication model. Under this background, the principle of digital co,nmunication is introduced first in this paper, and accordingly the role of the communication network resources sharing is analyzed, and finally the sharing management of digital communication network resources is proposed. Hopefully, this paper can play a help in the future subsequent study. 展开更多
关键词 Digital Communication network resources SHARING management
下载PDF
A Self-Attention Based Dynamic Resource Management for Satellite-Terrestrial Networks
6
作者 Lin Tianhao Luo Zhiyong 《China Communications》 SCIE CSCD 2024年第4期136-150,共15页
The satellite-terrestrial networks possess the ability to transcend geographical constraints inherent in traditional communication networks,enabling global coverage and offering users ubiquitous computing power suppor... The satellite-terrestrial networks possess the ability to transcend geographical constraints inherent in traditional communication networks,enabling global coverage and offering users ubiquitous computing power support,which is an important development direction of future communications.In this paper,we take into account a multi-scenario network model under the coverage of low earth orbit(LEO)satellite,which can provide computing resources to users in faraway areas to improve task processing efficiency.However,LEO satellites experience limitations in computing and communication resources and the channels are time-varying and complex,which makes the extraction of state information a daunting task.Therefore,we explore the dynamic resource management issue pertaining to joint computing,communication resource allocation and power control for multi-access edge computing(MEC).In order to tackle this formidable issue,we undertake the task of transforming the issue into a Markov decision process(MDP)problem and propose the self-attention based dynamic resource management(SABDRM)algorithm,which effectively extracts state information features to enhance the training process.Simulation results show that the proposed algorithm is capable of effectively reducing the long-term average delay and energy consumption of the tasks. 展开更多
关键词 mobile edge computing resource management satellite-terrestrial networks self-attention
下载PDF
What to Cache:Differentiated Caching Resource Allocation and Management in Information-Centric Networking 被引量:6
7
作者 Ru Huo Renchao Xie +2 位作者 Hengyang Zhang Tao Huang Yunjie Liu 《China Communications》 SCIE CSCD 2016年第12期261-276,共16页
Information-centric networking(ICN) aims to improve the efficiency of content delivery and reduce the redundancy of data transmission by caching contents in network nodes. An important issue is to design caching metho... Information-centric networking(ICN) aims to improve the efficiency of content delivery and reduce the redundancy of data transmission by caching contents in network nodes. An important issue is to design caching methods with better cache hit rate and achieve allocating on-demand. Therefore, an in-network caching scheduling scheme for ICN was designed, distinguishing different kinds of contents and dynamically allocating the cache size on-demand. First discussing what was appropriated to be cached in nodes, and then a classification about the contents could be cached was proposed. Furthermore, we used AHP to weight different contents classes through analyzing users' behavior. And a distributed control process was built, to achieve differentiated caching resource allocation and management. The designed scheme not only avoids the waste of caching resource, but also further enhances the cache availability. Finally, the simulation results are illustrated to show that our method has the superior performance in the aspects of server hit rate and convergence. 展开更多
关键词 caching resource allocation management differentiation control process information-centric networking
下载PDF
A Game-Theoretic Perspective on Resource Management for Large-Scale UAV Communication Networks 被引量:8
8
作者 Jiaxin Chen Ping Chen +3 位作者 Qihui Wu Yuhua Xu Nan Qi Tao Fang 《China Communications》 SCIE CSCD 2021年第1期70-87,共18页
As a result of rapid development in electronics and communication technology,large-scale unmanned aerial vehicles(UAVs)are harnessed for various promising applications in a coordinated manner.Although it poses numerou... As a result of rapid development in electronics and communication technology,large-scale unmanned aerial vehicles(UAVs)are harnessed for various promising applications in a coordinated manner.Although it poses numerous advantages,resource management among various domains in large-scale UAV communication networks is the key challenge to be solved urgently.Specifically,due to the inherent requirements and future development trend,distributed resource management is suitable.In this article,we investigate the resource management problem for large-scale UAV communication networks from game-theoretic perspective which are exactly coincident with the distributed and autonomous manner.By exploring the inherent features,the distinctive challenges are discussed.Then,we explore several gametheoretic models that not only combat the challenges but also have broad application prospects.We provide the basics of each game-theoretic model and discuss the potential applications for resource management in large-scale UAV communication networks.Specifically,mean-field game,graphical game,Stackelberg game,coalition game and potential game are included.After that,we propose two innovative case studies to highlight the feasibility of such novel game-theoretic models.Finally,we give some future research directions to shed light on future opportunities and applications. 展开更多
关键词 large-scale UAV communication networks resource management game-theoretic model
下载PDF
ICI Management for Efficient Radio Resource Allocation in Multi-Cell OFDMA Networks 被引量:1
9
作者 吕铁军 余雪芬 《China Communications》 SCIE CSCD 2011年第7期84-94,共11页
Two Inter-cell Interference (ICI) management algorithms: Primary Interference Balancing (PIB) algorithm and Interfering Bits Loading Avoidance (IBLA) algorithm are proposed for canceling the ICI effects which the exis... Two Inter-cell Interference (ICI) management algorithms: Primary Interference Balancing (PIB) algorithm and Interfering Bits Loading Avoidance (IBLA) algorithm are proposed for canceling the ICI effects which the existing efficient radio resource allocation algorithms do not consider. The efficient radio resource allocation algorithm, i.e., Pre-assignment and Reassignment (PR) algorithm, obtains the lowest complexity and achieves good throughput performance in single cell OFDMA system. However, in multi-cell multi-sector OFDMA networks, PR algorithm is not applicable because it does not take ICI into consideration. The proposed PIB algorithm balances the number of loading bits for the desired User Equipment (UE) and the major interfering UE, as well as optimizes the SINR performance; meanwhile, IBLA avoids loading certain number of interfering bits which would make SINR unqualified. Simulations confirm the ICI management effectiveness and feasibility of both the proposals. 展开更多
关键词 ICI management bit loading integer programming radio resource allocation multi-cell ofDMA networks
下载PDF
Intelligent Resources Management System Design in Information Centric Networking 被引量:2
10
作者 Hengyang Zhang Shixiang Zhu +2 位作者 Renchao Xie Tao Huang Yunjie Liu 《China Communications》 SCIE CSCD 2017年第8期105-123,共19页
Information centric networking(ICN) is a new network architecture that is centred on accessing content. It aims to solve some of the problems associated with IP networks, increasing content distribution capability and... Information centric networking(ICN) is a new network architecture that is centred on accessing content. It aims to solve some of the problems associated with IP networks, increasing content distribution capability and improving users' experience. To analyse the requests' patterns and fully utilize the universal cached contents, a novel intelligent resources management system is proposed, which enables effi cient cache resource allocation in real time, based on changing user demand patterns. The system is composed of two parts. The fi rst part is a fi ne-grain traffi c estimation algorithm called Temporal Poisson traffi c prediction(TP2) that aims at analysing the traffi c pattern(or aggregated user requests' demands) for different contents. The second part is a collaborative cache placement algorithm that is based on traffic estimated by TP2. The experimental results show that TP2 has better performance than other comparable traffi c prediction algorithms and the proposed intelligent system can increase the utilization of cache resources and improve the network capacity. 展开更多
关键词 information centric networking traffi c estimation cache resources allocation time series analysis intelligent analysis
下载PDF
Construction of Network Management Information System of Agricultural Products Supply Chain Based on 3PLs 被引量:3
11
作者 GAO Shu-jin,YANG Qing-xian College of Economics and Management,Sichuan Agricultural University,Ya’an 625014,China 《Asian Agricultural Research》 2010年第10期57-59,64,共4页
The necessity to construct the network management information system of 3PLs agricultural supply chain is analyzed,showing that 3PLs can improve the overall competitive advantage of agricultural supply chain.3PLs chan... The necessity to construct the network management information system of 3PLs agricultural supply chain is analyzed,showing that 3PLs can improve the overall competitive advantage of agricultural supply chain.3PLs changes the homogeneity management into specialized management of logistics service and achieves the alliance of the subjects at different nodes of agricultural products supply chain.Network management information system structure of agricultural products supply chain based on 3PLs is constructed,including the four layers (the network communication layer,the hardware and software environment layer,the database layer,and the application layer) and 7 function modules (centralized control,transportation process management,material and vehicle scheduling,customer relationship,storage management,customer inquiry,and financial management).Framework for the network management information system of agricultural products supply chain based on 3PLs is put forward.The management of 3PLs mainly includes purchasing management,supplier relationship management,planning management,customer relationship management,storage management and distribution management.Thus,a management system of internal and external integrated agricultural enterprises is obtained.The network management information system of agricultural products supply chain based on 3PLs has realized the effective sharing of enterprise information of agricultural products supply chain at different nodes,establishing a long-term partnership revolving around the 3PLs core enterprise,as well as a supply chain with stable relationship based on the supply chain network system,so as to improve the circulation efficiency of agricultural products,and to explore the sales market for agricultural products. 展开更多
关键词 3PLs(third PARTY logistics) AGRICULTURAL PRODUCTS
下载PDF
A Numerical Solution for the Integrated Analysis of Water Resources Management: Application to the Mero River Watershed, La Coruña, Spain
12
作者 Francisco Padilla J. Horacio Hernández +1 位作者 Ricardo Juncosa Pablo R. Vellando 《Journal of Water Resource and Protection》 2015年第10期815-829,共15页
This research is concerned with new developments and practical applications of a physically-based numerical model that incorporates new approaches for a finite elements solution to the steady/transient problems of the... This research is concerned with new developments and practical applications of a physically-based numerical model that incorporates new approaches for a finite elements solution to the steady/transient problems of the joint ground/surface water flows. Python scripts are implemented in Geographic Information System (GIS) to store, represent and take decisions on the simulated conditions related to the water resources management at the scale of the watershed. The proposed surface-subsurface model considers surface and groundwater interactions to be 2-D horizontally distributed and depth-averaged through a diffusive wave approach for surface flood routing. Infiltration rates, overland flows and evapotranspiration processes are considered by a diffuse discharge from surface water, non-saturated subsoil and groundwater table. Recent developments also allow for the management of surface water flow control through the capacity of diversion on river beds, spillways and outflow operations of floodgates in weirs and dams of reservoirs. Practical application regards the actual hydrology of the Mero River watershed, with two important water bodies mainly concerned with the water resources management at the Cecebre Reservoir and the present flooding of a deep coal mining excavation. The MELEF model (Modèle d’éLéments Fluides, in French) was adapted and calibrated during a period of five years (2008/ 2012) with the help of hydrological parameters, registered flow rates, water levels and registered precipitation, water uses and water management operations in surface and groundwater bodies. The results predict the likely evolution of the Cecebre Reservoir, the flow rates in rivers, the flooding of the Meirama open pit and the local water balances for different hydrological components. 展开更多
关键词 INTEGRATED Surface/Subsurface Flows Numerical Modelling Finite Elements Watershed HYDROLOGY GEOGRAPHIC information System Water resources management
下载PDF
Research on the Application of Computer Network Technology in Electronic Information Engineering 被引量:1
13
作者 Zhiwu Cui 《Journal of Electronic Research and Application》 2022年第3期1-5,共5页
Computer network technology has a very important role in electronic information engineering.The application of this technology not only enriches the traditional information engineering functions,but also effectively g... Computer network technology has a very important role in electronic information engineering.The application of this technology not only enriches the traditional information engineering functions,but also effectively guarantees the efficiency and quality.At present,due to the wide variety of external information that Chinese citizens are exposed to,in addition to the variegated and mixed content,it is easy for information to be leaked or stolen.In order to avoid similar situations,it is necessary for people to pay more attention to network system security,so as to ensure that the quality of life of citizens can be guaranteed.In view of that,this paper discusses and analyzes the application of computer network technology in electronic information engineering. 展开更多
关键词 Computer network technology Electronic information engineering Application and management
下载PDF
An Analysis of the Value of Additional Information Provided by Water Quality Measurement Network
14
作者 François Destandau Amadou Pascal Diop 《Journal of Water Resource and Protection》 2016年第8期767-776,共10页
European Community policy concerning water is placing increasing demands on the acquisition of information about the quality of aquatic environments. The cost of this information has led to a reflection on the rationa... European Community policy concerning water is placing increasing demands on the acquisition of information about the quality of aquatic environments. The cost of this information has led to a reflection on the rationalization of monitoring networks and, therefore, on the economic value of information produced by these networks. The aim of this article is to contribute to this reflection. To do so, we used the Bayesian framework to define the value of additional information in relation to the following three parameters: initial assumptions (prior probabilities) on the states of nature, costs linked to a poor decision (error costs) and accuracy of additional information. We then analyzed the impact of these parameters on this value, particularly the combined role of prior probabilities and error costs that increased or decreased the value of information depending on the initial uncertainty level. We then illustrated the results using a case study of a stream in the Bas-Rhin department in France. 展开更多
关键词 Bayesian Decision theory EUTROPHICATION Value of information Water Quality Monitoring network Water resource management
下载PDF
A Decision Support System Web—Application for the Management of Forest Road Network
15
作者 Apostolos Kantartzis Chrisovalantis Malesios 《Journal of Environmental Science and Engineering(A)》 2018年第1期8-21,共14页
The present study contributes to the development of an online FRMP(Forest Road Management Platform)that aims to assist in the management of forest road network in a holistic way.This is achieved by the proposed method... The present study contributes to the development of an online FRMP(Forest Road Management Platform)that aims to assist in the management of forest road network in a holistic way.This is achieved by the proposed methodology which serves as a database using geoprocessing and geospatial technologies for the handling,and the identification of critical issues in the infrastructure of forest road networks,visualization of forest roads,and the optimization of the management of the forest road network by proposing alternative strategies.In this paper,the development of the decision making web-tool,and presented examples to demonstrate effectively its application and resulting advantages are described.The developed web-application may provide assistance to various forest organizations in the management of forest road networks and associated problems in an effective and sustainable way. 展开更多
关键词 FOREST ROAD network web-application management of FOREST ROADS SUSTAINABLE FOREST management GIS(Geographic information Systems)
下载PDF
Factors Influencing the Successful Adoption of Human Resource Information System: The Content of Aqaba Special Economic Zone Authority
16
作者 Hisham Al-Mobaideen Sattam Allahawiah Eman Basioni 《Intelligent Information Management》 2013年第1期1-9,共9页
This study examines the key factors that have impact on the successful adoption of Human Resource Information System (HRIS) within the Aqaba Special Economic Zone Authority (ASEZA)/Jordan. In order to accomplish the p... This study examines the key factors that have impact on the successful adoption of Human Resource Information System (HRIS) within the Aqaba Special Economic Zone Authority (ASEZA)/Jordan. In order to accomplish the purpose of the study four critical factors are inquired. So, four critical factors are inquired: First, TAM Model (Perceived Ease of Use (PEOU) and Perceived Usefulness (PU)). Second, Information Technology Infrastructure (ITI). Third, Top Management Support (TMS). Finally, Individual Experience with Computer (IEC). The research model was applied to collect data from the questionnaires answered by 45 users of HRIS as a source of primary data, based on a convenience sample the response rate was about 91%. In addition, the results were analyzed by utilizing the Statistical Package for Social Software (SPSS). Furthermore, the findings were analyzed;multiple Regression analysis indicated that all research variables have significant relationship on successful adoption of HRIS. The findings indicated IT infrastructures have a positive and significant effect on the successful adoption of HRIS. But there is no significant of PU, PEOU, TMS, and IEC on the successful adoption of HRIS. Finally, the results indicated that no significant statistical differences of demographic characteristics on HRIS adoption. Depending on the research’s findings;the researchers proposed a set of recommendations for better adoption of HRIS in SEZA. 展开更多
关键词 Human resource information System (HRIS) Aqaba Special Economic Zone AUTHORITY (ASEZA) PERCEIVED USEFULNESS (PU) information Technology Infrastructure (ITI) Top management Support (TMS) and Individual Experience with Computer (IEC)
下载PDF
Human Resources Information Management Research of Xinlong Casting Company
17
作者 Xinran Chen 《International English Education Research》 2014年第6期1-3,共3页
Based on the integrated predecessors' research results and practical experience at home and abroad, on the basis of investigation and study the Xinlong casting co., LTD. In the process of implementation of human reso... Based on the integrated predecessors' research results and practical experience at home and abroad, on the basis of investigation and study the Xinlong casting co., LTD. In the process of implementation of human resources information management problems, such as: The problems existing in the informatization recruitment; The problems in the compensation management, software foundation weak; In the labor relations problems. ChangIng the concept of executives, to renew the idea of human resources information management. And other small and medium-sized enterprise human resources the implementation of information management to provide the reference and the suggestion. 展开更多
关键词 Human resources information management Small and medium-sized enterprises
下载PDF
The impact of network technologies on Higher Education Management and Countermeasures
18
作者 Yuexin CUI 《International Journal of Technology Management》 2014年第11期66-68,共3页
The 21 st century is an era of information technology, network technology is in all areas of life and production and also higher education administration began to apply network technology and network management. Howev... The 21 st century is an era of information technology, network technology is in all areas of life and production and also higher education administration began to apply network technology and network management. However, in the rapid development of information technology today, due to network with their own information technology, high-speed, information-based features are widely used in educational management in universities, so that some common problems on the network has infiltrated into university education management, making College Educational management in the New face new problems and challenges. Through the influence of network technology for Higher Education Management of the research on network technology we make a few constructive suggestions on education management application and Universities. 展开更多
关键词 network technologies Higher Education management information Technology
下载PDF
Human Resources Information Management Research of Xinlong Casting Company
19
作者 Xinran Chen 《International English Education Research》 2014年第7期1-3,共3页
Based on the integrated predecessors' research results and practical experience at home and abroad, on the basis of investigation and study the Xinlong casting co., LTD. In the process of implementation of human reso... Based on the integrated predecessors' research results and practical experience at home and abroad, on the basis of investigation and study the Xinlong casting co., LTD. In the process of implementation of human resources information management problems, such as: The problems existing in the informatization recruitment; The problems in the compensation management, software foundation weak; In the labor relations problems. Changing the concept of executives, to renew the idea of human resources information management. And other small and medium-sized enterprise human resources the implementation of information management to provide the reference and the suggestion. 展开更多
关键词 Human resources information management Small and medium-sized enterprises
下载PDF
A review and an outlook of the National Cultural Information Resources Sharing Project
20
作者 ZHANG Yanbo 《Chinese Journal of Library and Information Science》 2008年第1期3-13,共11页
This paper discusses the Project's organization system, technical system, creation of digital resources and service mode. It also summarizes achievements gained since the commencement of the Project, and also anal... This paper discusses the Project's organization system, technical system, creation of digital resources and service mode. It also summarizes achievements gained since the commencement of the Project, and also analyzes some of the more important issues during implementation stage and gives a few suggestions of the future development during the next stage of the 11thFive-Year Plan. 展开更多
关键词 Cultural information resource Sharing project Technical support network system Service mode
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部