청년창업가의 일자리만족도에 대한 잠재프로파일 분석

김영서,홍세희 한국벤처창업학회 2021 벤처창업연구 Vol.16 No.1

The purpose of this study is to analyze the types of latent profiles depending on the job satisfaction of youth entrepreneurs in South Korea and examine the influence of related variables. Latent profile analysis (LPA) was conducted using data from the 12th year of the Youth Panel Study. Results of the study revealed that there were five latent profiles based on job satisfaction among young entrepreneurs: lowest job satisfaction, mid-low job satisfaction, middle job satisfaction, mid-high job satisfaction, and highest job satisfaction. By applying multinomial logistic analysis, the influencing factors for each latent profiles have been derived. Gender, marital status, subjective health, self-esteem, entrepreneurial motivation, difficulty in start-up, person-job fit, intrinsic or extrinsic job values, business scale, income, work hour, education or training, and labor insurance were significant predictors of youth entrepreneurs’ job satisfaction. Based on these results, the article discusses practical implications that can enhance the job satisfaction of young entrepreneurs. 본 연구의 목적은 청년창업가의 일자리만족도에 따른 잠재프로파일의 유형을 분석하고 관련 변인의 영향력을 살펴보는 것이다. 이를 위해 청년패널조사 12차년도 자료를 활용하여 잠재프로파일분석을 실시하였다. 분석결과, 청년창업가의 일자리만족도에 따른 잠재프로파일은 5개로 도출되었고, 그 형태에 따라‘낮은 일자리만족 집단’,‘중하위 일자리만족 집단’,‘중간 일자리만족 집단’,‘중상위 일자리만족 집단’,‘높은 일자리만족 집단’이라 명명하였다. 각각의 잠재프로파일 집단에 대해 영향요인을 살펴본 결과, 성별, 배우자 유무, 주관적 건강상태, 자아존중감, 창업동기, 창업시 어려움, 업무적합도, 내적 직업가치, 외적 직업가치, 사업체 규모, 현직장 임금, 주당 평균근로시간, 창업교육훈련 이수여부, 고용보험 가입여부가 청년창업가의 일자리만족도에 영향을 주는 유의미한 요인이며 집단에 따라 차이가 존재함을 확인하였다. 본 연구는 청년창업가의 일자리만족도의 잠재프로파일 유형과 이에 대한 여러 독립변수의 효과를 알아봄으로써, 청년창업가의 일자리만족도를 높일 수 있는 정책적 시사점에 대해 논의하였다.

구어능력 평가의 타당도

김영서 德成女子大學校 1995 德成女大論文集 Vol.24 No.-

One of the most pressing issues in the field of foreign language testing at present is that of defining the construct, "communicative competence", precisely enough to permit its assessment. This issue is of crucial importance because considerable effort is currently being expended in developing measures of communicative competence. This effort includes not only studies conducted by numerous individuals, but program developments conducted by organizations and institutions. The efforts have shared the same general goal of expanding the range of language abilities measured, and have yielded useful measures for various needs and purposes. This research includes construct validation studies in two methods: oral interview and self rating on the level of university studensts. These studies have refined the researches of communicative competence, and demonstrate the value of empirical research directed toward theory falsification as a basis for language test development.

전동휠체어를 위한 응답형 음성제어 시스템의 설계(Ⅰ)

김영서,최창순,정동명,홍승홍 대한전자공학회 1988 秋季綜合學術大會 論文集 Vol.11 No.1

This paper describes a new design of speech synthesis system using dedicated LSI for the control of the motorized wheelchair. This will make a good part of a response type voice control system. Especially, we aimed at the improvement of the data compression of voice signals and it was as proved chat the results were satisfactory.

뇌지방색전증 환자에서 자기공명분광법 소견

김영서,황윤수,임선재,박현영 대한신경과학회 2014 대한신경과학회지 Vol.32 No.4

자가 발전형 장기 지하매설배관 원격감시 장치 개발에 관한 연구

김영서,채현병,서재순,채수권 한국환경기술학회 2018 한국환경기술학회지 Vol.19 No.6

Systematic management during the whole life cycle from construction to operation and maintenance is very important for the seven underground pipelines (waterworks, sewerage, electricity, telecommunications, gas, heating, oil including waterworks and sewerage). Especially, it is the construction process that affects the whole life cycle of underground buried pipeline. In order to construct a new city or to maintain different underground pipes, it is always necessary to dig the ground and carry out construction and related work. There is a possibility that secondary and tertiary breaks frequently occur in the pipeline construction process after the piping constructed first in this process. To solve this problem, a system is needed which can monitor damage in real time. However, the supply of electric power for continuous operation of the system is limited according to the environment of underground buried pipelines, so it is necessary to develop a stable electric power supply system using natural energy rather than existing electric power. In this study, we developed a system that can operate the pipeline monitoring system for long time (24 hours and 15 days) using natural energy using wind and solar light. 상하수도를 포함하는 7대 지하매설배관(상수도, 하수도, 전기, 통신, 가스, 난방, 송유)은 시공에서부터 운영 및 유지관리에 걸친 전 생애 주기 동안 체계적인 관리가 매우 중요하다. 특히, 지하매설배관의 전생애주기에 가장 큰 영항을 미치는 것은 시공과정이다. 새로운 도시를 건설하거나 서로 다른 지하매설배관을 유지관리하기 위해서는 매번 땅을 파고 시공 및 관련 작업을 수행해야 한다. 이 과정에 먼저 시공한 배관은 후에 시공하는 배관 시공 과정에 2차 및 3차 파손이 빈번하게 발생할 수 있는 가능성이 있다. 이 문제를 해결하기 위해서는 시공 과정에 일어나는 파손을 실시간으로 감시할 수 있는 시스템이 필요하다. 또한 지하매설배관의 환경에 따라 시스템의 지속적으로 운영하기 위한 전력의 공급이 제한되는 경우가 많아 기존 전력이 아닌 자연에너지를 이용한 안정적인 전력공급 시스템의 개발이 필요하다. 본 연구에서는 풍력과 태양광을 이용한 자연에너지를 이용하여 배관감시시스템을 장기간(24시간 15일) 안정적으로 운영이 가능한 장치를 개발하였으며 이를 현장시험을 거쳐 운전성능을 확인하였다.

쓰기 능력 평가 연구

김영서 德成女子大學校 1994 德成女大論文集 Vol.23 No.-

A Significant problem for research in composition teaching has been objective evaluation of student writing. Measures such as T-unit and rhetorical connectives provide information about surface or grammatical geatures, but there has been no satisfactory way to measure objectively the property of communicative competence in detail. The present study sttempts to measure language proficiency from the perspective of three different communicative competence: grammatical competence, pragmatic competence, sociolinguistic competence. Correlational analysis supported the reliability of sub-component of communicative competence.

한국어 학습자의 결속이론 인지

김영서 德成女子大學校 1996 德成女大論文集 Vol.26 No.-

This study investigates how foreign advanced students learning Korean as L2 acquire the binding pattern of the Korean reflexive 'Caki' and pronominals 'Keu'. The result showed firstly pronominals were more difficult than anaphors, secondly, a consistent order of difficulty was found for different sentence types, finally, common order of difficulty occurred with first language background. The discussion concerns the validity of comprehension test as evidence for the universal grammar model. It is suggested that the results show that parameter settings are related to performance as well as grammatical competence.

Association of Aortic Knob Calcification with Intracranial Stenosis in Ischemic Stroke Patients

김영서,박현영,윤경호,박형종,정진성,하연수 대한뇌졸중학회 2013 Journal of stroke Vol.15 No.2

Background and Purpose Aortic knob calcification (AC) is associated with increased risks of cardiovascular and cerebrovascular events. We evaluated the clinical importance of AC in ischemic stroke patients with intracranial (IC) stenosis using simple, non-invasive and routine chest radiography. Methods The presence of AC was assessed in a chest posteroanterior view in 307 acute ischemic stroke patients admitted from May 2009 to April 2010, and who underwent magnetic resonance angiography or distal subtraction angiography. The association of AC with IC stenosis was analyzed. Results Patient age (68.3±8.7 vs. 65.9±8.27 years, P=0.04), and the prevalence of IC stenosis (70.7 vs. 41.3%, P<0.01) were higher in patients with AC than in patients without calcification. After adjusting for age, gender and vascular risk factors, logistic regression analysis showed that AC (Odds ratio, 3.54; 95% confidence interval, 1.90 to 6.61, P<0.01) and age (Odds ratio, 1.79; 95% confidence interval, 1.01 to 3.19; P=0.04) were independent factors affecting IC stenosis. Conclusions AC appears to be a reliable predictor for IC stenosis, an important mechanism of ischemic stroke.

웨이브렛 변환과 파워스펙트럼 분석을 통한 EEG 안정상태의 정량적 인식

김영서,박승환,남도현,김종기,길세기,민홍기,Kim, Young-Sear,Park, Seung-Hwan,Nam, Do-Hyun,Kim, Jong-Ki,Kil, Se-Kee,Min, Hong-Ki 한국융합신호처리학회 2007 융합신호처리학회 논문지 (JISPS) Vol.8 No.3

The EEG signal in general can be categorized as the Alpha wave, the Beta wave, the Theta wave, and the Delta wave. The alpha wave, showed in stable state, is the dominant wave for a human EEG and the beta wave displays the excited state. The subject of this paper was to recognize the stable state of EEG quantitatively using wavelet transform and power spectrum analysis. We decomposed EEG signal into the alpha wave and the beta wave in the process of wavelet transform, and calculated each power spectrum of EEG signal, using Fast Fourier Transform. And then we calculated the stable state quantitatively by stable state ratio, defined as the power spectrum of the alpha wave over that of the beta wave. The study showed that it took more than 10 minutes to reach the stable state from the normal activity in 69 % of the subjects, 5 -10 minutes in 9%, and less than 5 minutes in 16 %.

구어능력 평가 : 평가기준과 평가절차를 중심으로

김영서 德成女子大學校 1998 德成女大論文集 Vol.29 No.-

Despite a considerable amount of research on oral proficiency testing over the last 20 years, little is understood about the interview process itself and the interview rating scales. This research attempted two things. First attempt is made to measure comprised three main communicative language competence: grammatical competence, pragmatic competence and socio-linguisitic competence and 7 sub areas; range, accuracy, vocabulary, cohesion, rhetorical organization, formality, mativeness and cultural reference. Second attempt is to suggest oral interview rating scales and interview manual using the suggested frame of communicative competence.