• 제목/요약/키워드: Industry Correlation Analysis

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LTE 하향링크의 Zadoff-Chu 시퀀스를 이용한 배열 안테나 Calibration 알고리즘 (An Array Antenna Calibration Algorithm Using LTE Downlink Zadoff-Chu Sequence)

  • 손철봉;장재현;양현욱;최승원
    • 디지털산업정보학회논문지
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    • 제9권4호
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    • pp.51-57
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    • 2013
  • Research on calibration of array antenna has become a hot spot in the area of signal processing and it is necessary to obtain the phase mismatch of each antenna channel. This paper presents a new calibration method for an array antenna system. In order to calibrate the phase mismatch of each antenna channel, we used primary synchronization signal (PSS) which exists in LTE downlink frame. Primary synchronization signal (PSS) is based on a Zadoff-Chu sequence which has a good correlation characteristic. By using correlation calculation, we can extract primary synchronization signal (PSS). After extracting primary synchronization signal (PSS), we use it to calibrate and reduce the phase errors of each antenna channel. In order to verify the new array antenna calibration algorithm which is proposed in this paper, we have simulated the proposed algorithm by using MATLAB. The array antenna system consists of two antenna elements. The phase mismatch of first antenna and second antenna is calculated accurately by proposed algorithm in the experiment test. Theory analysis and MATLAB simulation results are shown to verify the calibration algorithm.

간호대학생의 인성, 긍정심리자본이 학업탄력성에 미치는 영향 (Influences of Personality and Positive Psychological Capital on Academic Resilience of Nursing Students)

  • 임정민
    • 한국산업융합학회 논문집
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    • 제26권6_2호
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    • pp.1033-1046
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    • 2023
  • The purpose of this study was to investigate the relationship between personality, positive psychological capital, and academic resilience of nursing students and to identify the factors affecting academic resilience of nursing students. Data were collected from 199 nursing students in their first and second year at C nursing college in M-gun, J-do, and a survey was conducted from July 10 to July 28, 2023. The collected data were analyzed using descriptive statistics, t-test, one-way ANOVA, Scheffe test, Pearsons correlation coefficient, Stepwise multiple regression analysis was conducted. Personality had a significant positive correlation with positive psychological capital(r=.62, p<.001) and academic resilience(r=.68, p<.001), and positive psychological capital had a significant positive correlation with academic resilience(r=.79, p<.001). The major factor influencing the academic resilience of nursing students was positive psychological capital, followed by personality, interpersonal relationship, and college life satisfaction, and their total explanatory power was 72% (F=102.85, p<.001). Based on the results of this study, it is necessary to develop an educational program that can increase positive psychological capital in order to strengthen the academic resilience of nursing students, and efforts should be made to introduce and manage it in the nursing curriculum.

간호대학생의 메타인지, 전문직 자아개념이 셀프리더십에 미치는 영향 (Influences of Metacognition and Professional Self-Concept on Self-Leadership in Nursing Students)

  • 임정민
    • 한국산업융합학회 논문집
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    • 제27권1호
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    • pp.115-129
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    • 2024
  • Purpose: The purpose of this study was to investigate the relationship between nursing students' metacognition, professional self-concept, and self-leadership and to identify the factors affecting nursing students' self-leadership. Methods: Data were collected from 195 nursing students in the first, second, and third years of nursing college located in J province, and a survey was conducted from November 13, 2023 to November 24, 2023. The collected data were analyzed through descriptive statistics, t-test, one-way ANOVA, Scheffe test, Pearson's correlation coefficient, and stepwise multiple regression analysis using SPSS/WIN 29.0 program. Result: Metacognition of the subjects showed a significant positive correlation with professional self-concept (r=.68 p<.001) and self-leadership (r=.79, p<.001), and professional self-concept showed a significant positive correlation with self-leadership(r=.67, p<.001). The major factors influencing self-leadership of nursing students were metacognition, professional self-concept, self-satisfaction, and perceived leadership level in order, and their explanatory power was 67%(F=79.92, p<.001). Conclusion: Based on the results of this study, it is necessary to develop an education program that improves metacognition and professional self-concept in order to strengthen the self-leadership of nursing students, and efforts should be made to introduce and manage it in the nursing curriculum.

간호대학생의 회복탄력성 영향 요인: 감성지능과 간호전문직관 중심으로 (Factors Influencing Resilience of Nursing Students: Focusing on Emotional Intelligence and Nursing Professionalism)

  • 임정민
    • 한국산업융합학회 논문집
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    • 제27권1호
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    • pp.213-228
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    • 2024
  • Purpose: The purpose of this study was to investigate the relationship between emotional intelligence, nursing professionalism, and resilience of nursing students and to identify the factors affecting resilience of nursing students. Methods: Data were collected from 205 nursing students in the 1st, 2nd, and 3rd grades of nursing colleges located in J province, and a survey was conducted from November 20th to November 30th, 2023. The collected data were analyzed through descriptive statistics, t-test, one-way ANOVA, Scheffe test, Pearson's correlation coefficient, and stepwise multiple regression analysis using SPSS/WIN 29.0 program. Result: The emotional intelligence of the subjects showed a significant positive correlation with nursing professionalism(r=.56 p<.001) and resilience(r=.75, p<.001), and nursing professionalism showed a significant positive correlation with resilience(r=.55, p<.001). The major factors influencing the resilience of nursing students were emotional intelligence, nursing professionalism, academic performance, and personality in order, and their explanatory power was 62% (F=83.05 p<.001). Conclusion: Based on the results of this study, it is necessary to develop an educational program that improves emotional intelligence and nursing professionalism in order to strengthen the resilience of nursing students.

빅데이터 양성 교육 교과과정 개선을 위한 회귀분석 기반의 만족도 조사에 관한 연구 (A Study on Satisfaction Survey Based on Regression Analysis to Improve Curriculum for Big Data Education)

  • 최현
    • 한국산업융합학회 논문집
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    • 제22권6호
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    • pp.749-756
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    • 2019
  • Big data is structured and unstructured data that is so difficult to collect, store, and so on due to the huge amount of data. Many institutions, including universities, are building student convergence systems to foster talents for data science and AI convergence, but there is an absolute lack of research on what kind of education is needed and what kind of education is required for students. Therefore, in this paper, after conducting the correlation analysis based on the questionnaire on basic surveys and courses to improve the curriculum by grasping the satisfaction and demands of the participants in the "2019 Big Data Youth Talent Training Course" held at K University, Regression analysis was performed. As a result of the study, the higher the satisfaction level, the satisfaction with class or job connection, and the self-development, the more positive the evaluation of program efficiency.

한국 의류제조산업의 효율성에 관한 연구 (A Data Envelopment Analysis for Estimating the Efficiency of Korean Apparel Industry)

  • 박우람;김미진;권오경;김문영;조우현
    • 복식
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    • 제57권2호
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    • pp.69-85
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    • 2007
  • Despite the recovery of consumer expenditure and retailing in the Korean economy after 2001, the domestic apparel industry has been aggravated by negative growth in both productivity and production. The purpose of the stud? is to diagnose the develop competitive of the Korean apparel industry and derive implications for this after estimating the efficiency of the Korean apparel companies with Data Envelopment Analysis. Data Envelopment Analysis(DEA) is a methodology based in non-parametric analysis and linear programming. It was developed for measuring the relative efficiency of a set of firms that use inputs to produce outputs. Data used fer input and output variables in the analysis are drawn from financial statement recorded by the Korean Financial Supervisory Service. The initial input data comprise the number fo the employees, fixed assets, general management and selling expenses, and cost of sales. The initial outputs are the operating profit and the gross margin. To summary the results, the efficiencies of the Korean apparel companies has increased yearly in spite of being overabundance of investment in Labour and Capital. According to correlation between input and output variables, the Korean apparel industry has been revamping gradually from labor intensive industries to the capital. The companies need to reduce costs in the results from the number of employees, fixed asset and cost of sales to transform into an efficiently enterprise. The companies owning or obtaining a brand had bitter establish an outsourcing strategic in production, while OEM corporations are called far setting up a manufactory in domestic or abroad. Although the paper is derived some implications with production efficiencies, the relation between apparel companies and brand power, consumption level of consumer, and social trend is remained on a limitation to the study. The next research necessitates a topic with Fashion industry or examining the correlation between brand value, social propensity and profit margin.

핵심자기평가(CSE)와 일-가족 지원, 직장만족 그리고 이직의도의 관계 연구 (A study on the Relationships of Core-Self Evaluation, Work-Family Facilitation, Job Satisfaction and Turnover Intention)

  • 최현정
    • 한국조리학회지
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    • 제17권4호
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    • pp.219-237
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    • 2011
  • 본 연구의 목적은 국내 외식업계의 비정규직 직원을 대상으로 핵심자기평가, 일-가족 지원, 직장만족 그리고 이직의도의 관계를 분석함으로써 직원의 이직을 줄이기 위한 방안을 모색하고 추후 이와 관련된 연구의 방향을 제시하는 것이다. 본 연구의 가설을 검증하기 위하여 AMOS 4.0과 SPSS 10.0 통계 프로그램을 이용하였으며, 분석 방법은 신뢰도분석(reliability analysis), 빈도분석(frequency analysis), 확인적 요인분석(confirmatory factor analysis), 상관관계 분석(correlation analysis) 그리고 공분산 구조분석(covariance structure analysis)을 실시하였다. 연구 결과, 핵심자기평가는 일-가족 방향 지원과 가족-일 방향 지원 모두에 긍정적인 영향이 있는 것으로 밝혀졌다. 일-가족 지원과 직장만족의 관계에 있어서는 가족-일 방향 지원만이 직장만족에 긍정적인 영향이 있는 것으로 나타났다. 마지막으로 직장만족은 직원의 이직을 줄이는 것에 효과가 있는 것으로 규명되었다.

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프랜차이즈 모기업 핵심역량 자원이 가맹점 관계결속과 재계약의도에 미치는 영향 (Effects of Core Competence and Resource Sharing on the Relational Bond among Franchisees and on Re-contract Intention in the Franchising Parent Companies)

  • 허영욱;주말찬
    • 유통과학연구
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    • 제12권4호
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    • pp.11-22
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    • 2014
  • Purpose - The domestic franchise industry has made significant contributions to industry such as investment, employment, and community economy development, facilitating growth potential. The franchise industry provides management knowhow transfer between parent companies and franchisees as per contracts addressing use of business signs, franchisees' independent position, franchisor support, and royalties to be paid to the franchisors. However, many franchisors lack management knowhow and provide insufficient support because of poor control of franchisees and not having a systematic approach to support. This results in dissatisfied franchisees and failure to establish long-term relationships. Few studies have examined relational commitment and/or re-contract intention by support resources between franchisors and franchisees, despite a considerable output of theories and studies of the growth of the franchise industry. The purpose of this study, therefore, was to examine the effects of the ability to provide resources on relational commitments and re-contract intention, and to suggest causal relationships and implications. Research design, data, and methodology - The subject was domestic franchisors registered with the Association of Franchise with more than 50 franchisees. Franchisees under contract for 2 years and considering re-contract of their franchise 2 years later were used. The subjects totaled 300 franchisees in Seoul. A questionnaire survey was used to investigate the subject of franchisees' concessions during the 10 days from November 21, 2013 to November 30, 2013. After excluding 16 surveys with poor answers, 284 responses were finally used. Four areas and 44 questions were used. A nominal scale was used for four common characteristics questions including gender, ages, educational background, and franchise managing time. Questions regarding ability, relational commitment, and re-contract intention made use of a Likert 5-point scale. Data coding and data cleaning were used. SPSS 18.0 was used as follows. First, frequency analysis was done to investigate demographic characteristics. Second, exploratory factor analysis was done to verify validity of testing tools, and Cronbach's α coefficient was used to verify reliability. Third, correlation analysis and multiple regression analysis were done. An exploratory factor analysis was done to verify validity of concepts. A correlation analysis was done to test relationships between the variables, and multiple regression analysis was done to verify franchisor's ability, franchisees' relational commitment, and re-contract intention. Results - The following were the outcomes. First, store operation management, finance operation management, and human resource management affected the calculated bond. Second, store operation management and finance operation management affected the emotional bond. Third, store operation management, finance operation management, human resource management, and marketing management affected the prescriptive bond. Fourth, calculated bond and prescriptive bond had an effect on re-contract intention. Conclusions - As stated above, in franchise management, parent companies' offer and instruction of core competence to their franchisees as an information resource could improve the relational bond by helping them grow together through the resource sharing. Consequently, core competence factors were promoting factors that could improve franchisees' re-contract intention for a long time.

부산지역 지능형기계부품산업 기업지원사업에 대한 성과분석 (Analysis on the Outcomes of Supporting SMEs Project by Busan Regional Intelligent Machine Parts Industry)

  • 이동구;류제두;남건석;하경남
    • 한국산업융합학회 논문집
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    • 제21권3호
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    • pp.117-123
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    • 2018
  • Continued R&D investment by the government and corporate support played a major role as the background of the rapid growth of the Republic of Korea. In 2017 of the Republic of Korea, the R&D support size of the government accounted for 19.7 trillion won, accounting for 4.7% of the government budget. Government R&D budgets are increasing by 2.5% each year. In this paper, we analyzed the outcomes of the Busan regional company support project conducted in the 2 years. For the time series analysis, we gathered company support amount by year, sales after company support, employment. We used IBM SPSS(Statistical Package for the Social Sciences) statistics 18 for correlation analysis.

내부마케팅활동이 외식종사원의 직무만족에 미치는 영향 (A Study on the impact of internal marketing action on food industry employers사 job satisfaction)

  • 우문호
    • 한국관광식음료학회지:관광식음료경영연구
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    • 제12권2호
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    • pp.59-78
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    • 2001
  • The domestic food service industry has established its industrial basis since the overseas brands were introduced and international events were held in Korea. It also has showed a prominent growth rate as consumers began to show more interests in leisure and quality of working life(QWL) At this, the employees, constituting Points of contacts with consumers of the food service industry, have emerged as a Primarily critical concern in order for the food service industry, which can affect people in various ways, to adopt our own food culture and develop its business quality. In the food service industry, as a relatively labour-intensive industry, the manpower service is considered very important. Whether the industry succeeds or not depends on the role of employees as the quality of service of employees can decide the quality of the industry itself. In spite of the importance of employees in the food service industry, not many researches have been Performed on the personnel management of the industry, as Koreans traditionally have hold a prejudiced view on the food service industry and it is only a short time since the food business began to be considered as an industry. This thesis aims at research on the factors affecting job satisfaction of the employees by dealing with the importance and characteristics of the role of employees of the food service industry and theoretical background of the job satisfaction. The presumable factors affecting the job satisfaction are divided into several groups ; characteristics of organization, working condition, human relationship, psychological factors, and its reputation in the labour market. Hypotheses and models, where those factors affect the employees, are formed. Statistical methods such as correlation analysis and multiple regression are used in order to verify those hypotheses. Alternatives to improve job satisfaction of employees are suggested based on the analysis. It is expected that there will be more active researches on employees of the food service industry, as this thesis has selected employees of the food service industry as its subjects while subjects of similar researches have been mainly hotel employees so far.

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