Chinese Institute of Scientific and Technical Information

Beijing, China

Chinese Institute of Scientific and Technical Information

Beijing, China
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Zhang D.-g.,Tianjin University of Technology | Zhang X.-d.,Chinese Institute of Scientific and Technical Information
Enterprise Information Systems | Year: 2012

With the growth of the amount of information manipulated by embedded application systems, which are embedded into devices and offer access to the devices on the internet, the requirements of saving the information systemically is necessary so as to fulfil access from the client and the local processing more efficiently. For supporting mobile applications, a design and implementation solution of embedded un-interruptible power supply (UPS) system (in brief, EUPSS) is brought forward for long-distance monitoring and controlling of UPS based on Web. The implementation of system is based on ATmega161, RTL8019AS and Arm chips with TCP/IP protocol suite for communication. In the embedded UPS system, an embedded file system is designed and implemented which saves the data and index information on a serial EEPROM chip in a structured way and communicates with a microcontroller unit through I 2C bus. By embedding the file system into UPS system or other information appliances, users can access and manipulate local data on the web client side. Embedded file system on chips will play a major role in the growth of IP networking. Based on our experiment tests, the mobile users can easily monitor and control UPS in different places of long-distance. The performance of EUPSS has satisfied the requirements of all kinds of Web-based mobile applications. © 2012 Copyright Taylor and Francis Group, LLC.

Vaughan L.,University of Western Ontario | Yang R.,Chinese Institute of Scientific and Technical Information
Journal of the American Society for Information Science and Technology | Year: 2012

Earlier studies found that web hyperlink data contain various types of information, ranging from academic to political, that can be used to analyze a variety of social phenomena. Specifically, the numbers of inlinks to academic websites are associated with academic performance, while the counts of inlinks to company websites correlate with business variables. However, the scarcity of sources from which to collect inlink data in recent years has required us to seek new data sources. The recent demise of the inlink search function of Yahoo! made this need more pressing. Different alternative variables or data sources have been proposed. This study compared three types of web data to determine which are better as academic and business quality estimates, and what are the relationships among the three data sources. The study found that Alexa inlink and Google URL citation data can replace Yahoo! inlink data and that the former is better than the latter. Alexa is even better than Yahoo!, which has been the main data source in recent years. The unique nature of Alexa data could explain its relative advantages over other data sources. © 2012 ASIS & T.

Vaughan L.,University of Western Ontario | Yang R.,Chinese Institute of Scientific and Technical Information
Journal of Informetrics | Year: 2013

Unlike Web hyperlink data, Web traffic data have not yet been the focus of considerable study in Webometrics research. The relationships between Web traffic data and academic/business performance measures have not been as firmly established as the relationships between Web hyperlink data and such performance measures. Although various traffic data sources exist, few studies have examined and compared their relative merits. We carried out a study that aimed to address this lack. We selected groups of universities and businesses from the U.S. and China and collected their Web traffic data from three sources: Alexa Internet, Google Trends for Websites, and Compete. We found significant correlations between Web traffic data and organizational performance measures, specifically academic quality for universities and financial variables for businesses. We also examined the characteristics of the three data sources and compared their usefulness. We found that Alexa Internet outperformed the others. © 2013 Elsevier Ltd.

Zhou P.,Chinese Institute of Scientific and Technical Information | Leydesdorff L.,University of Amsterdam
Journal of Informetrics | Year: 2011

In the case of the scientometric evaluation of multi- or interdisciplinary units one risks to compare apples with oranges: each paper has to be assessed in comparison to an appropriate reference set. We suggest that the set of citing papers can be considered as the relevant representation of the field of impact. In order to normalize for differences in citation behavior among fields, citations can be fractionally counted proportionately to the length of the reference lists in the citing papers. This new method enables us to compare among units with different disciplinary affiliations at the paper level and also to assess the statistical significance of differences among sets. Twenty-seven departments of the Tsinghua University in Beijing are thus compared. Among them, the Department of Chinese Language and Linguistics is upgraded from the 19th to the second position in the ranking. The overall impact of 19 of the 27 departments is not significantly different at the 5% level when thus normalized for different citation potentials. © 2011 Elsevier Ltd.

Liping D.,Chinese Institute of Scientific and Technical Information
Applied Energy | Year: 2011

Energy is important for China and for the whole world. Previously, the huge investment in energy-related research and commercialisation made it possible for China to cooperate with its international partners in various channels, and programs involving international cooperation and co-published papers increased annually. In this paper, through the review of intergovernmental cooperation programs and bibliometric analysis of the top energy journals, it was found that: (1) intergovernmental cooperation and non-governmental cooperation are two effective channels for energy R&D. (2) In these two channels, most participants of international cooperation are universities and institutes, and the most important partner countries are the US, Japan, and European Countries. (3) Industries began to be involved in international cooperation gradually. (4) For different areas, the degree of cooperation is not the same. Some areas have been more fruitful in cooperation, some are just beginning hydrogen energy, fuel energy and applied energy are the main co-publication areas with Chinese involvement; while wind energy, solar energy, fuel cells and bio-energy are new areas for China and there has not been so much co-publication until now. © 2011 Elsevier Ltd.

Zeng W.,Chinese Institute of Scientific and Technical Information
Journal of Convergence Information Technology | Year: 2011

The paper aims to explore Chinese thesaurus automation construction based on the freely available digital library resources. The key methods and study results are presented in the paper. The study adopted the technology of natural language processing to analysis the linguistics characteristics of terms, and combined with statistical analysis to extract the terms from technical literatures. Our method consists of automatic extracting and filtering terms, judging and building relationship among terms. The study experiments run on the Java test platform. The study obtains the following conclusions: Finding the similarities and differences between the Chinese thesaurus standard and International thesaurus standard. The methods for the automatic extraction of terms and building relationship among them are presented. The study results show that the proposed methods can obtain better performance. The paper proposes a new thinking on thesaurus automation construction in the digital age. The presented method based on linguistics and statistics is a new attempt. According to the experiment results, this exploration and study is innovative and valuable. In addition, these thinking and methods give a good start for improving information services of the PRC's National Science and Technology Digital Library.

Chen Y.J.,Chinese Institute of Scientific and Technical Information
Applied Mechanics and Materials | Year: 2013

Today, bioplastics are becoming increasingly prominent owing mainly to scarcity of oil, increase in the cost of petroleum-based commodities, and growing environmental concerns with the dumping of non-biodegradable plastics in landfills. In this paper, we first discuss the definition and basic facts as well as the major advantages of bioplastics, then the main differences between plastics and bioplastics in packaging are reviewed. Finally, possible future developments of bioplastics are prospected. © (2013) Trans Tech Publications, Switzerland.

Ding N.,Chinese Institute of Scientific and Technical Information
Applied Mechanics and Materials | Year: 2014

In the era of rapid growth and high competition, a company must possess an information/knowledge advantage in order to hold the upper hand in the industry. Therefore, the company has to continuously monitor its competitors in order to get enough information and convert the information into competitive knowledge. Although information technology has been used in many areas and has many successful examples, it is rarely the case that information technology was used for the task of competitor intelligence. Accordingly, this study describes the Enterprise Competitive Intelligence System. Competitive Intelligence (CI) is one of the key factors for enterprise risk management and decision support. However, the functions of Competitive Intelligence are often greatly restricted by the lack of sufficient information sources about the competitors. Competitive Intelligenceaims to monitor a firm's external environment for information relevant to its decision-making process. The article describes the concept and the functions of the Enterprise Competitive Intelligence System, discusses the principle of its construction, and also discusses the construction process and the awareness of CI. © (2014) Trans Tech Publications, Switzerland.

Zhang X.,Chinese Institute of Scientific and Technical Information
Neurocomputing | Year: 2014

Patent classification is of great importance to effective patent analysis. Traditional manual classification suffers from the problem of low efficiency and high expense. To address this issue, an interactive patent classification algorithm based on multi-classifier fusion and active learning is proposed in this paper, which comprises the construction and update of classification model. For model construction, a sub-classifier is trained for each class of the patents by means of support vector machine. Via multi-classifier fusion, the sub-classifiers are effectively combined to acquire enhanced classifiers, based on which the classification decision can be made. For model update, active learning is used to select the most informative patents for labeling, in which dynamic batch sampling is presented to cope with the problem of redundancy in traditional batch mode. Using dynamic certainty propagation, the selected patents become more informative for active learning. By iterating model construction and update, the classification performance can be gradually refined. The interactive classification algorithm is applied to both synthetic data and patents, and its effectiveness is demonstrated by the encouraging results. © 2013 Elsevier B.V.

Chen Y.J.,Chinese Institute of Scientific and Technical Information
Advanced Materials Research | Year: 2013

Environmental issues constitute continuous concern for governments, societies and business organizations. Green supply chain management (GSCM) emerged as a new approach that extends environmental responsibility of organizations throughout their entire supply chain managements. In this paper, we first discuss the definitions of environmental sustainability and GSCM as well as the important differences between GSCM and SCM, then some latest research progresses on the deep relations between environmental sustainability and GSCM are briefly reviewed. Finally, possible future developments of green packaging are prospected. © (2013) Trans Tech Publications, Switzerland.

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