• Title/Summary/Keyword: Comparative Literature

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Ex-ante Evaluation Process for Public R&D: Korean Case and its Implications for Indonesian R&D System

  • Lee, Elly Hyanghee;Jang, Young-Sun;Ariyani, Luthfina;Sari, Karlina;Hardiyati, Ria
    • Asian Journal of Innovation and Policy
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    • v.9 no.3
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    • pp.281-307
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    • 2020
  • A variety of approaches are being applied to improve the existing ex-ante evaluation by expert panels in publicly funded R&D. While the objective evaluation criteria are constantly being improved to screen and select the superior projects, alternative approaches such as random prioritization and logical modeling are also underway to overcome the conservative bias of reviewers and to secure disruptive innovation. This study intends to find critical implications for ex-ante evaluation of public R&D system from the comparison of Indonesia and Korea. For the comparative analysis, literature review and expert in-depth interviews are conducted on the national R&D system and the selection evaluation process. In Korea, the selection criteria of projects are legally promulgated for establishing an objective evaluation system, and at the program level, the major considerations in the planning process are specified by Presidential Decree. On the other hand, while Indonesia conducts R&D in 47 strategic fields largely by public research institutes (PRI) based on the non-competitive government contributions. This study draws out implications of institutionalizing the planning process at the level of program, and of increasing the ratio of contract-based competitive funding at the level of project in the national R&D portfolio.

Extent of Corporate Social Responsibility Disclosure: Evidence from Bangladesh

  • RAHMAN, Md. Mahfujur;MASUM, Mofijul Hoq
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.4
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    • pp.563-570
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    • 2021
  • This study aims at exploring the corporate social responsibility (CSR) practices in the listed companies of Bangladesh. One hundred eighty-two different companies from fifteen different sectors have been selected as a sample. A weighted disclosure index having fifty-two items has been applied to ensure the degree of CSR practices of the sample companies. Each of the content has been assigned a three-scale value starting from zero to two. After that, eight dimensions of CSR are identified from CSR literature and have been evaluated by the predetermined disclosure index. Finally, a composite CSR disclosure (CSRD) score has been computed to measure the extent of CSR practices of the sample companies. The findings of the study reveal a poor CSRD score by the sample companies. Besides, it has been found that the listed companies provide more CSR activities on employee-related issues and community service-related issues while the listed companies provide less information on energy-related CSRD and customer-related CSRD in the context of Bangladesh. The findings of the study imply that the government and the regulatory authority should give more attention to develop a harmonized standards or policies to measure the degree of CSR practices for comparative purposes.

A Comparative Study of Software Reliability Model Considering Log Type Mean Value Function (로그형 평균값함수를 고려한 소프트웨어 신뢰성모형에 대한 비교연구)

  • Shin, Hyun Cheul;Kim, Hee Cheul
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.4
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    • pp.19-27
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    • 2014
  • Software reliability in the software development process is an important issue. Software process improvement helps in finishing with reliable software product. Infinite failure NHPP software reliability models presented in the literature exhibit either constant, monotonic increasing or monotonic decreasing failure occurrence rates per fault. In this paper, proposes the reliability model with log type mean value function (Musa-Okumoto and log power model), which made out efficiency application for software reliability. Algorithm to estimate the parameters used to maximum likelihood estimator and bisection method, model selection based on mean square error (MSE) and coefficient of determination($R^2$), for the sake of efficient model, was employed. Analysis of failure using real data set for the sake of proposing log type mean value function was employed. This analysis of failure data compared with log type mean value function. In order to insurance for the reliability of data, Laplace trend test was employed. In this study, the log type model is also efficient in terms of reliability because it (the coefficient of determination is 70% or more) in the field of the conventional model can be used as an alternative could be confirmed. From this paper, software developers have to consider the growth model by prior knowledge of the software to identify failure modes which can be able to help.

A Comparative Analysis of the Design Efficiency of Transformable Wedding Dresses Using 3D Programs -Focusing on Dress Design for Small Weddings- (3D 프로그램을 활용한 트랜스포머블 웨딩드레스 디자인 개발 및 효율성 비교연구 -스몰웨딩용 웨딩드레스 디자인을 중심으로-)

  • Bae, Soojeong;Yuan, Xinyi
    • Journal of the Korean Society of Clothing and Textiles
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    • v.45 no.3
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    • pp.439-452
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    • 2021
  • The purpose of this thesis is to compare the efficiency of 3D digital design technology with traditional hand-drawn designs of a transformable dress for a small wedding. After reviewing the literature, this empirical study analyzed the tendencies of small wedding dress design, concluding that a transformable dress for a small wedding consists of a bodice, skirt, and outer skirt or gown with train, each of which has five possible designs, resulting in 15 virtual items within the 3D program. The 3D program provides the benefit of easy design development as well as reduced costs and design time. Specifically, the random combination of 15 items with layers in the 3D program produced 150 different styles in 5 hours, while hand-drawing 150 dresses took 50 hours. Moreover, the 3D program does not need any material, but 150 physical drawings required a sketchbook, pencil, eraser, and marker, total cost 31,100 won. Additionally, the 3D whole-body scan helps the bride decide which design she prefers through virtual try-ons. Eventually, the 3D program could help a bride decide what she prefers and produce it with virtual simulation, resulting in reduced time and costs.

Stability and normal zone propagation in YBCO tapes with Cu stabilizer depending on cooling conditions at 77 K

  • Kruglov, S.L.;Polyakov, A.V.;Shutova, D.I.;Topeshkin, D.A.
    • Progress in Superconductivity and Cryogenics
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    • v.22 no.4
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    • pp.14-19
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    • 2020
  • Here we present the comparative experimental study of the stability of the superconducting state in 4 mm YBCO tapes with copper lamination against local heat disturbances at 77 K. The samples are either directly cooled by immersing a bare YBCO tape into a liquid nitrogen pool or operate in nearly-adiabatic conditions when the tape is covered by a 0.6 mm layer of Kapton insulation. Main quench characteristics, i.e. minimum quench energies (MQEs) and normal zone propagation (NZP) velocities for both samples are measured and compared. Minimum NZP currents are determined by a low ohmic resistor technique eligible for obtaining V - I curves with a negative differential resistance. The region of transport currents satisfying the stationary stability criterion is found for the different cooling conditions. Finally, we use the critical temperature margin as a universal scaling parameter to compare the MQEs obtained in this work for YBCO tapes at 77 K with those taken from literature for low-temperature superconductors in vacuum at 4.2 K, as well as for MgB2 wires cooled with a cryocooler down to 20 K.

Comparative analysis of health insurance system and dental hygiene curriculum for 3 years (치위생학 교과의 3년간 건강보험제도 반영 비교 분석)

  • Choi, Hyo-Jin;Oh, Sang-Hwan
    • Journal of Korean Academy of Dental Administration
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    • v.8 no.1
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    • pp.37-40
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    • 2020
  • The background of this study is the observation that there is an increase in the number of elderly persons and the decrease in fertility rates, which may be related to the increase in the average age of the Korean people; accordingly, the national health insurance system changes every year following this pattern. However, this study investigates whether these changes are reflected in the dental hygiene curriculum. Data from the national health insurance system is reviewed for the last three years, and the recently published dental hygiene curriculum is selected, compared, and analyzed using a literature survey. The study is divided into two parts: information that is reflected in the dental hygiene curriculum and information that is not reflected in the dental hygiene curriculum, but which it is believed should be included. In addition, as the part reflected in the dental hygiene curriculum, it was stated in three subjects of dental implantology, dental prosthesis, and conservative dentistry, and there were four cases. Therefore, efforts should be made to ensure that the curriculum for dental hygiene students should reflect the changes in the national health insurance system so that students can more easily understand dental insurance claim processes.

Systematic Literature Review and Meta-Analysis on the Effect of Exercise Intervention Programs on Blood Lipids in Obese Adolescents in Korea according to Sex (국내 비만 청소년을 대상으로 실시한 운동 중재 프로그램의 혈중지질 효과에 대한 체계적 문헌고찰과 메타분석: 성별 차이 분석)

  • Kim, Juri;Lee, Mikyoung
    • Journal of the Korean Society of School Health
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    • v.34 no.2
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    • pp.87-97
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    • 2021
  • Purpose: The authors used a meta-analysis approach to investigate the effects of exercise on gender-specific triglyceride (TG) and high-density lipoprotein cholesterol (HDL-C) in obese adolescents. Methods: This study is a systematic review and meta-analysis study to confirm the effect of exercise intervention according to gender for obese adolescents. PICO were obese a adolescents, exercise intervention, comparative intervention (control and general group),TG and HDL-C. Results: The group of obese male adolescents showed a statistically significant decrease of 51.72 in TG (n=175, MD=-51.72; 95% CI -52.44 to -51.00).There was a statistically significant increase of 4.44 in HDL-C (n=175, MD=4.44; 95% CI 3.79 to 5.10) in the group of obese male adolescents. Conclusion: Triglyceride and high-density lipoprotein cholesterol were analyzed to determine the effect of exercise interventions in obese adolescents according to gender differences. The results of this study can be used as basic data for the design of future exercise intervention studies, subjects, exercise methods, and intervention periods.

Biomechanical evaluations of the long-term stability of dental implant using finite element modeling method: a systematic review

  • Hosseini-Faradonbeh, Seyed Aref;Katoozian, Hamid Reza
    • The Journal of Advanced Prosthodontics
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    • v.14 no.3
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    • pp.182-202
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    • 2022
  • PURPOSE. The aim of this study is to summarize various biomechanical aspects in evaluating the long-term stability of dental implants based on finite element method (FEM). MATERIALS AND METHODS. A comprehensive search was performed among published studies over the last 20 years in three databases; PubMed, Scopus, and Google Scholar. The studies are arranged in a comparative table based on their publication date. Also, the variety of modeling is shown in the form of graphs and tables. Various aspects of the studies conducted were discussed here. RESULTS. By reviewing the titles and abstracts, 9 main categories were extracted and discussed as follows: implant materials, the focus of the study on bone or implant as well as the interface area, type of loading, element shape, parts of the model, boundary conditions, failure criteria, statistical analysis, and experimental tests performed to validate the results. It was found that most of the studied articles contain a model of the jaw bone (cortical and cancellous bone). The material properties were generally derived from the literature. Approximately 43% of the studies attempted to examine the implant and surrounding bone simultaneously. Almost 42% of the studies performed experimental tests to validate the modeling. CONCLUSION. Based on the results of the studies reviewed, there is no "optimal" design guideline, but more reliable design of implant is possible. This review study can be a starting point for more detailed investigations of dental implant longevity.

Comparative Study of Artificial-Intelligence-based Methods to Track the Global Maximum Power Point of a Photovoltaic Generation System (태양광 발전 시스템의 전역 최대 발전전력 추종을 위한 인공지능 기반 기법 비교 연구)

  • Lee, Chaeeun;Jang, Yohan;Choung, Seunghoon;Bae, Sungwoo
    • The Transactions of the Korean Institute of Power Electronics
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    • v.27 no.4
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    • pp.297-304
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    • 2022
  • This study compares the performance of artificial intelligence (AI)-based maximum power point tracking (MPPT) methods under partial shading conditions in a photovoltaic generation system. Although many studies on AI-based MPPT have been conducted, few studies comparing the tracking performance of various AI-based global MPPT methods seem to exist in the literature. Therefore, this study compares four representative AI-based global MPPT methods including fuzzy logic control (FLC), particle swarm optimization (PSO), grey wolf optimization (GWO), and genetic algorithm (GA). Each method is theoretically analyzed in detail and compared through simulation studies with MATLAB/Simulink under the same conditions. Based on the results of performance comparison, PSO, GWO, and GA successfully tracked the global maximum power point. In particular, the tracking speed of GA was the fastest among the investigated methods under the given conditions.

Exploring Factors Affecting on the Pharmaceutical Distribution Industry: the Case of Kazakhstan

  • KIREYEVA, Anel A.;ABILKAYIR, Nazerke A.;ORYNBET, Perizat Zh.;SATYBALDIN, Azimkhan A.;SATPAYEVA, Zaira T.
    • Journal of Distribution Science
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    • v.19 no.8
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    • pp.13-24
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    • 2021
  • Purpose: This research is aimed to explore factors affecting on Kazakhstan's pharmaceutical distribution industry, selection of various factors and assessment of the level of their influence. Based on the literature review it was defined that there is a great variety of scientific works relating to pharmaceutical distribution industry competitiveness and management improvement. Research design, data and methodology: There is very little research, which to determine the issues of pharmaceutical industry distribution in developing countries, in particular EAEU countries. The algorithm was chosen for research provision: statistical and comparative analysis, correlation, and regression analysis. The data of 1993-2020 obtained from the World Bank, Bureau of National Statistics, National Bank of Kazakhstan, which is expressed by 19 factors as macroeconomic indicators. Results: The chosen variables were selected non-randomly, these economic indicators had the most reliable, unique, and utmost for the whole research period complete information. Conclusions: There could be made adequate conclusions of the research, there is a strong positive relationship for six factors: population, GDP per capita, average annual US dollar exchange rate, the minimum pension, average assigned monthly pension, minimum wage. Pension and wage are the most significant factors affecting on the pharmaceutical distribution industry in Kazakhstan.