• Title/Summary/Keyword: Methodology and Mixed-Method

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Development of Comprehensive Evaluation Index for In-vehicle Warning Information Systems (혼합가중치기반 차내 경고정보시스템 통합평가지표 개발)

  • Joo, Shinhye;Oh, Cheol;Hong, Sungmin
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.13 no.6
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    • pp.10-24
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    • 2014
  • In-vehicle warning information systems(IWIS) is an effective countermeasure for preventing traffic crashes. It provides drivers with warnng messages about upcoming hazards to draw proper evasive maneuvering. This study developed a methodology for evaluating the effectiveness of IWIS based on an integrated index to identify driver's responsive behavior. The proposed index consists of characteristics of longitudinal and lateral behavior of vehicle maneuverings. Also, a method to assign mixed-weights in the context of multi-criteria decision making framework was adopted to develop the evaluation method. It is expected that the outcome of this study is useful in designing more effective in-vehicle warning information systems.

SoC Design of Speaker Connection System by Efficient Cosimulation (효율적인 통합시뮬레이션에 의한 스피커 연결 시스템의 SoC 설계)

  • Song, Moon-Vin;Song, The-Hoon;Oh, Chae-Gon;Chung, Yun-Mo
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.43 no.10 s.352
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    • pp.68-73
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    • 2006
  • This, paper proposes a cosimulation methodology that results in an efficient SoC design as well as fast verification by integrating HDL, SystemC, and algorithm-level abstraction using the design tools Active-HDL and Matlab's Simulink. To demonstrate the proposed design methodology, we implemented the design technique on a serial connection multi-channel speaker system. We have demonstrated the proposed cosimulation method utilizing an ARM processor based SoC Master board with the AMBA bus interface and a Xilinx Vertex4 FPGA. The proposed method has the advantage of simultaneous simulation verification of both software and hardware parts in high levels of abstraction mixed with some performance critical parts in more concrete RTL codes. This allows relatively fast and easy design of a speaker connection system which typically requires significant amount of data processing for verification.

Satellite Imagery based Winter Crop Classification Mapping using Hierarchica Classification (계층분류 기법을 이용한 위성영상 기반의 동계작물 구분도 작성)

  • Na, Sang-il;Park, Chan-won;So, Kyu-ho;Park, Jae-moon;Lee, Kyung-do
    • Korean Journal of Remote Sensing
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    • v.33 no.5_2
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    • pp.677-687
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    • 2017
  • In this paper, we propose the use of hierarchical classification for winter crop mapping based on satellite imagery. A hierarchical classification is a classifier that maps input data into defined subsumptive output categories. This classification method can reduce mixed pixel effects and improve classification performance. The methodology are illustrated focus on winter cropsin Gimje city, Jeonbuk with Landsat-8 imagery. First, agriculture fields were extracted from Landsat-8 imagery using Smart Farm Map. And then winter crop fields were extracted from agriculture fields using temporal Normalized Difference Vegetation Index (NDVI). Finally, winter crop fields were then classified into wheat, barley, IRG, whole crop barley and mixed crop fields using signature from Unmanned Aerial Vehicle (UAV). The results indicate that hierarchical classifier could effectively identify winter crop fields with an overall classification accuracy of 98.99%. Thus, it is expected that the proposed classification method would be effectively used for crop mapping.

Corporate Social Responsibility and Firm Performance: the Moderating Role of Top Management Team Characteristics and Heterogeneity

  • Meng, La-Mei;Byun, Hae-Young
    • Asia-Pacific Journal of Business
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    • v.12 no.2
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    • pp.39-60
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    • 2021
  • Purpose - The purpose of this paper is exploring whether the characteristics and heterogeneity of the TMT play a moderating role in CSR and corporate value or not. Design/methodology/approach - The literature research method includes collecting, organizing, and analyzing the literature on the characteristics and heterogeneity of the TMT, the effect of corporate social responsibility (CSR), and corporate value. We analyze the contributions and limitations in existing research, grasp the current research status, and develop the research content of this article. The empirical analysis method is based on the data of Chinese A-share listed companies from 2001 to 2017. This allows us to study the moderating effect of the characteristics and heterogeneity of the TMT on CSR and corporate value. Findings - The TMT age, education degree, overseas background, and compensation have a positive moderating effect on CSR and corporate market value. The comprehensive heterogeneity of the TMT also has a positive effect on CSR and financial performance. Research implications or Originality - The research on the relationship between CSR and corporate value is still inconclusive. Some results have found a positive relationship, while others show a negative relationship. Studies exist that report mixed findings as well. This study has attempted to clarify this problem by adding potentially missing variables related on the TMT characteristics and heterogeneity, investigating causality effects.

An Analysis of the Effectiveness of Training and Development on the Performance of Organisations - A Case of FBC Bank Limited

  • Ileen SAVO
    • The Journal of Industrial Distribution & Business
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    • v.15 no.8
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    • pp.13-20
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    • 2024
  • Purpose: The purpose of this study is to analyse the effectiveness of training and development on the performance of employees in Zimbabwe's banks using FBC Bank as a case study. Research design, data and methodology: The study adopted a mixed research method to collect and analyse data from ten key informants and fifty FBC Bank employees drawn from its branches in Harare. The data collection method used were survey and interviews. Results: The study revealed that effective training and development is significant to FBC Bank because it has a positive effect on the performance of employees, which consequently result in improved organisational performance. Conclusion: The study concluded that knowledge on how to conduct effective training and development programs in FBC Bank is not optimum. Recommendations: The study recommended that management should acknowledge that training and development is a systematic process and therefore conduct training needs analysis, design training plans, implement training programs effectively and evaluate them in order to ensure well-coordinated and effective training and development programs. It also suggested that adequate budget allocation should be availed to finance the implementation of training and development programs in organisations.

An Analysis on the Research Method of Elderly Residents' Opinion towards the Physical Environments of the Facilities for the Elderly : Focusing on Foreign Academic Journal Articles since 1990 (노인시설의 물리적 환경에 대한 거주노인 의견 조사방법의 분석 : 1990년 이후 해외 학술논문자료를 중심으로)

  • Lee, Min-Ah
    • Journal of Families and Better Life
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    • v.33 no.2
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    • pp.35-51
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    • 2015
  • The purpose of this study was to provide information for research about residents' opinion toward the physical environments of elderly facilities, through the analysis and investigation on the research methodology of foreign academic journal articles from 1990 to 2014. The study results were as follows: Firstly, purposive sampling was a large majority of both facilities and elderly residents. In quantitative studies, many researchers have conducted simple random, cluster, or stratified sampling. Diverse facilities in area, size, location, and etc. should be considered for participation. The qualifications for residents' participation should be considered as well, so that they all could have autonomy for study participation. Secondly, questionnaire and semi-structured guide were likely to be used in independent and resident care facilities. On the other hand in assisted living and long-term care facilities, open questions and visual material were used as well. A compatible scale should be developed so that elderly having variable functional level could participate independently in the study. Thirdly, in data collection process, compliance with research ethics and well trained interviewer's skill were important for residents' active responses and minimization of response errors. Enough research period of time and mixed study in data collection will decrease the response error.

Customer Electronic Loyalty towards Online Business: The role of Online Trust, Perceived Mental Benefits and Hedonic Value

  • NGUYEN, Minh Ha;KHOA, Bui Thanh
    • Journal of Distribution Science
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    • v.17 no.12
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    • pp.81-93
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    • 2019
  • Purpose: The success of electronic commerce businesses is the ability to retain the customers and inspire their loyalty in online shopping. The purpose of this study is to develop a model to study the effect of perceived mental benefits, online trust, and hedonic value on the elements of electronic loyalty. Research design, data and methodology: Mixed research method was applied in this study with qualitative and quantitative research method. Qualitative data was collected through focus group discussion with electronic commerce experts. Quantitative data was collected through a survey of 917 customers, in which conducted in four cities and one province in Vietnam. SmartPLS software is used for processing quantitative data. Results: The study points out that four constructs of the mental benefit concept, although not entirely, have an impact on online trust and hedonic value. At the same time, two antecedents of electronic loyalty's three elements are online trust and hedonic value. Conclusions: Through the positive influence between the elements in the conceptual model, the study has shown that the perceived mental benefits, online trust, and hedonic value are important factors to shape the electronic loyalty in developing countries, such as Vietnam. This study proposed some scientific and managerial implications.

Predicting Consumers' Repurchase Intention of Ready-to-Drink Coffee: A Supply Chain from Thai Producers to Retailers

  • PUTITHANARAK, Naruecha;KLONGTHONG, Worasak;THAVORN, Jakkrit;NGAMKROECKJOTI, Chittipa
    • Journal of Distribution Science
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    • v.20 no.5
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    • pp.105-117
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    • 2022
  • Purpose: This research investigates ready-to-drink (RTD) coffee. Although the RTD coffee market is growing competitively, few studies have examined behavioral re-intention or repurchase intention in the context of this industry. Therefore, the objective of this study was to explore factors affecting the behavioral re-intention to purchase RTD coffee. Research design, data and methodology: Using the theory of planned behavior (TPB) as the underpinning theoretical framework, this study hypothesized that behavioral re-intention to purchase RTD coffee is influenced by the variables of the TPB and additional variables. A mixed-method research design was applied, starting with qualitative in-depth interviews and followed by a quantitative method. Data were collected using an online survey of coffee lovers. Multiple linear regression (MLR) was used to assess the hypothesized relationships in the proposed conceptual framework. Results: The results reveal that content sensory attribute beliefs are the strongest positive predictor of behavioral re-intention in Thailand, followed by perceived utilitarian value. In contrast, price signaling was negatively related to behavioral re-intention. Conclusions: The findings can help food and beverage companies to develop new coffee product lines to gain more market share, create integrated marketing communications to build brand awareness, and manage distribution channels and the supply chain.

A Study on Optimal Operation of Microgrid Considering the Probabilistic Characteristics of Renewable Energy Generation and Emissions Trading Scheme (신재생에너지발전의 확률적인 특성과 탄소배출권을 고려한 마이크로그리드 최적 운용)

  • Kim, Ji-Hoon;Lee, Byung Ha
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.1
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    • pp.18-26
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    • 2014
  • A microgrid can play a significant role for enlargement of renewable energy sources and emission reduction because it is a network of small, distributed electrical power generators operated as a collective unit. In this paper, an application of optimization method to economical operation of a microgrid is studied. The microgrid to be studied here is composed of distributed generation system(DGS), battery systems and loads. The distributed generation systems include combined heat and power(CHP) and small generators such as diesel generators and the renewable energy generators such as photovoltaic(PV) systems, wind power systems. Both of thermal loads and electrical loads are included here as loads. Also the emissions trading scheme to be applied in near future, the cost of unit start-up and the operational characteristics of battery systems are considered as well as the probabilistic characteristics of the renewable energy generation and load. A mathematical equation for optimal operation of this system is modeled based on the mixed integer programming. It is shown that this optimization methodology can be effectively used for economical operation of a microgrid by the case studies.

The Distribution of Research Framework on Exsheetlink Module Development for Accounting Education

  • Nor Sa'adah, JAMALUDDIN;Rohaila, YUSOF;Noor Lela, AHMAD
    • Journal of Distribution Science
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    • v.21 no.2
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    • pp.45-52
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    • 2023
  • Purpose: The Malaysia Education Blueprint is primarily concerned with the transformation of students' minds through the curriculum offered at the school level (2013-2025). Diversity in the application of teaching and learning methods is one means of achieving the transformation of students' minds through the Secondary School Standard Curriculum. Consequently, the production of ExSheetLink's Module for Accounting Education is the primary outcome of this study, which had three objectives: the need for ExSheetLink's Module in the process of producing financial statements for Accounting Students in secondary school to the Accounting Teacher; and the design of ExSheetLink's Module that meets the entire process in the production of financial statements for Accounting Students in secondary school based on the Documents Curriculum and the Accounting Students' needs. Research design, data and methodology: This study outlines the research framework for module development in accordance with the Design and Development Research Method, which combines multiple research techniques (Mixed Method). Results: The development of ExSheetLink's Module is completed and can be used for the level of effectiveness purposes. Conclusion: The transformation of Accounting Students' minds is a success thanks to the ExSheetLink Module. Researchers also suggested that all Malaysian Secondary School accounting students test the ExSheetLink Module.