• Title/Summary/Keyword: Journal Impact Factor

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Analysis of Generalized Impact Factors and the Indices of Journals

  • Abbas, Ash Mohammad
    • Journal of Information Processing Systems
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    • v.7 no.2
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    • pp.341-354
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    • 2011
  • Analyzing the relationships among the parameters for quantifying the quality of research published in journals is a challenging task. In this paper, we analyze the relationships between the impact factor, h-index, and g-index of a journal. To keep our analysis simple and easy to understand, we consider a generalized version of the impact factor where there is no time window. In the absence of the time window, the impact factor converges to the number of citations received per paper. This is not only justified for the impact factor, it also simplifies the analysis of the h-index and g-index as well because addition of a time window in the form of years complicates the computation of indices too. We derive the expressions for the relationships among impact factor, h index, and g-index and validate them using a given set of publication-citation data.

A Study on the Impact Factor of Bridges (교량의 충격계수에 관한 연구)

  • Youn, IIro;Ryu, Taek-Eun
    • Journal of the Korean Society of Industry Convergence
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    • v.7 no.2
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    • pp.161-166
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    • 2004
  • The impact factor of bridges is analyzed based on experimental data to examine the characteristics of the dynamic responses of bridges. The experimental impact factors are compared with the impact factor of Korean Highway Design Specification and Japan T-load in terms of the span length. According to the superstructural types of bridges, the variation of the impact factor is analyzed. When vehicles are passing on a bridge, the dynamic effect acts on the bridge impact factor more than at the time of design because of the velocity of vehicles, the surface roughness reduction due to the deterioration of the bridge deck pavement, and the disconnection of the bridge entrance and the expansion joint. Because the actual value is greater than the expected value at the time of design, the dynamic response of the bridge accelerates the deterioration of the bridge due to the accumulation of fatigue, and the bridge's life-time is shortened and can have an influence on the serviceability and safety of the bridge.

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Evaluation of Track Impact Factor in the Conventional Line (기존선 궤도의 충격계수 산정에 관한 연구)

  • 엄주환;유영화;엄기영
    • Journal of the Korean Society for Railway
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    • v.6 no.4
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    • pp.239-245
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    • 2003
  • In this paper, the track impact factor of conventional line was evaluated using the data for wheel load measured in field and the properties of current operating trains. The equation for track impact factor was presented through the statistical analysis of variational ratio in wheel load and compared with other design equations in domestic and foreign countries. A review on the safety of track system in conventional line was made from the relationship between the velocity and the corresponding impact factor. It was found that the impact factor from the proposed equation is a little less than the values from the equations adopted in both AREA and domestic railway, while it is same as the equation for continuous welded rail(CWR) in Japan. Therefore it could be said that the track satisfies a criteria for dynamic load caused by the train and the corresponding level of safety is guaranteed for dynamic load of the train

Web Impact Factor and Link Analysis of Indian Council of Agricultural Research (ICAR) Organizations

  • Kumar, Kutty
    • International Journal of Knowledge Content Development & Technology
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    • v.8 no.1
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    • pp.5-23
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    • 2018
  • There have been extensive studies done on webometrics, particularly on the impact of websites and the web impact factor. The present study analyzed the websites of ICAR organizations, according to the webometrics indicator. It examines and explores the 92 ICAR organizational websites in India and identifies a number of web pages and link pages, and calculates the Overall Web Impact Factor (WIF) and Absolute Web Impact Factor (WIF). In this study, all websites were analyzed and data extracted using Google search engine. It suggests that Web Impact Factors can be calculated as a way of comparing the attractiveness of web sites or domains on the Web.

Fiscal Convergence and Total Factor Productivity: Firm-Level Evidence from Pakistan

  • KHAN, Usman Shaukat;KHAN, Muhammad Arshad;NAWAZ, Saima;RAHMAN, Abdul
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.10
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    • pp.555-569
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    • 2020
  • This study examines the impact of corporate tax, a fiscal measure along with trade liberalization and research and development on total factor productivity for a panel of 153 industrial firms listed on the Pakistan Stock Exchange over the period 1997-2017. For empirical analysis, we employ the system generalized method of moment estimator. In the first step, we estimate industrial production function and the results reveal that raw material, industrial labour force and energy play vital role in enhancing industrial production. Whereas, industrial capital exerts negative impact on industrial output. We also measured total factor productivity using the production elasticities. In the second step, we examine the impact of corporate tax, trade liberalization and research and development on total factor productivity. The results indicate that higher level of corporate tax exerts negative impact on total factor productivity. The findings reveal that higher corporate taxation discourages industrial firms to undertake research and development thereby exerting adverse impact on total factor productivity of firms. The impact of trade liberalization proxied by average tariff is positive while customs duty and sales tax negatively impact firm-level total factor productivity. These findings provide useful insights for managers, investors and policy makers in Pakistan.

An Improvement for Impact Factor Determination to Traffic Loads (통행차량에 의한 충격계수 산정방법 개선)

  • Koo, Bong-Kuen;Ryu, Taek-Eun;Lee, Jae-Bum;Ryu, Youn-Jong
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.6 no.2
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    • pp.217-224
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    • 2002
  • This paper is proposed a reasonable method for determining the dynamic properties, the impact factors caused by traffic loads on highway bridges. In addition, the impact factors obtained in previous inspection reports were classified by the span length of the bridge, kind of bridge and type of bridge and the result of the impact factor was adjusted by a statistical method and presented problems. Also, the method for determining the impact factor using traffic load is proposed and the proposed method is compared with the specification code. The method estimating the impact factors due to the traffic loads can efficiently recognize the response of the structure by providing the impact factors and help to save the investigation cost, and also it can be used for the maintenance of structures using the usual test of bridges.

A Study on the Use of Science Citation Index (SCI) and Awareness of SCI Source Journals by Faculty Members at Korean Medical Colleges (국내 의과대학 교수들의 Science Citation Index (SCI) 이용 실태 및 SCI 학술지에 대한 인지도(認知度) 조사 연구)

  • Lee Choon-Shil
    • Journal of the Korean Society for Library and Information Science
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    • v.31 no.1
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    • pp.29-52
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    • 1997
  • A questionnaire survey was conducted to investigate the use of SCI and awareness of SCI source journals by fatuity members at Korean medical colleges. 104 out of 180 faculty members randomly chosen from four prestigious medical colleges returned the questionnaires malled to them. Korean medical researchers rarely used SCI as their main source of research Information. They rather used the MEDLINE to seek the research information probably because they are easily available from their local libraries. Furthermore. many respondents mistakenly Identified 'SCI journals ranked by Impact factor' lists found In Journal Citation Reports (JCR) with the SCI Itself. That Is. In Korean medical research community. the virtue of SCI Is not as an Index but as a source of SCI Journal Impact factor Information. It Is because the Interest in impact factor Is highly associated with the pressure to publish In one of those SCI source Journals. The collected data shows that even the medical professors at these prestigious medical colleges suffer from the lack of knowledge and information about SCI. SCI source journals and their Impact factors. Nontheless, core journal titles of a medical specialty selected by Korean medical professors are mostly high-Impact Journals of Its field (1.e.. belong to the upper 1/3) zone ranked by Impact factor). Within each specialty. the Journal ranks assigned to the selected core Journals by the respondents agree with the ranks by SCI Impact factor to a great extent. That Is. the Korean medical scientists awareness on SCI Journals as defined in this study is in good standing. Therefore. a policy of a medical college to require medical professors to publish In SCI Journals to be promoted or a policy to evaluate a researcher's work by the fact that his research papers are published In SCI Journals can be positively pursued.

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A Novel Journal Evaluation Metric that Adjusts the Impact Factors across Different Subject Categories

  • Pyo, Sujin;Lee, Woojin;Lee, Jaewook
    • Industrial Engineering and Management Systems
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    • v.15 no.1
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    • pp.99-109
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    • 2016
  • During the last two decades, impact factor has been widely used as a journal evaluation metric that differentiates the influence of a specific journal compared with other journals. However, impact factor does not provide a reliable metric between journals in different subject categories. For example, higher impact factors are given to biology and general sciences than those assigned to other traditional engineering and social sciences. This study initially analyzes the trend of the time series of the impact factors of the journals listed in Journal Citation Reports during the last decade. This study then proposes new journal evaluation metrics that adjust the impact factors across different subject categories. The proposed metrics possibly provides a consistent measure to mitigate the differences in impact factors among subject categories. On the basis of experimental results, we recommend the most reliable and appropriate metric to evaluate journals that are less dependent on the characteristics of subject categories.

The Relationship between the Load Carrying Capacity and Transformed Impact Factor of Highway Bridge (교량의 공용내하력과 환산충격계수 관계 연구)

  • Chai, Won-Kyu;Lee, Myeong-Gu
    • Journal of the Korean Society of Safety
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    • v.27 no.6
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    • pp.138-143
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    • 2012
  • In this thesis, the relationship between the load carrying capacity and the transformed impact factor of the highway bridges were studied. The bridges are classified according to superstructures type. The result of the comparison between the load carrying capacity and the transformed impact factor, if the load capacity ratio of 0.57, the transformed impact factor was less in order of RC T-beam bridge, RC slab bridge, PC beam bridge, I-beam bridge. By the regression analysis on these results, the empirical formulae to predict the the load carrying capacity of bridge were suggested.

Investigation of Impact Factor and Response Factor of Simply Supported Bridges due to Eccentric Moving Loads (이동하중의 편측재하에 따른 단순교의 충격계수 및 응답계수 변화 분석)

  • Hong, Sanghyun;Roh, Hwasung
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.22 no.6
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    • pp.105-113
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    • 2018
  • The proposed model to predict the bridge load carrying capacity uses the impact response spectrum. The spectrum is based on Euler-Bernoulli beam and the center of the bridge width for the moving load location. Therefore, it is necessary to investigate the eccentric moving load effects on the impact factor and response factor. For this, this study considers 10 m width and two-lane simply supported slab bridges and performs the moving load analysis to investigate the variations of peak impact factor and corresponding response factor. The numerical results show that the eccentric load increases both the static and dynamic displacements, but the impact factor is decreased since the incremental amount of static displacement is bigger than that of dynamic displacement. However, the difference of the impact factors between the center and eccentric loadings is small showing less than 0.5%p. In the response factor, the eccentric loading increases both the static and dynamic response factors, compared to the center loading. The difference of the response factor is only 0.18%p. It shows that the eccentric loading has very small effects on the response factor, thus the impact factor response spectrum which is generated based on the center moving load can be used to determine the response factor.