주택점유형태가 신혼가구의 출산에 미치는 영향 분석

신형섭(Hyung-sub Shin),정의철(Eui-Chul Chung) 한국주택학회 2021 주택연구 Vol.29 No.1

본 연구에서는 KLIPS의 2011년(14차 년도)부터 2018년(21차 년도)까지의 8개 년도 자료를 이용하여 주택점유형태가 신혼가구의 출산에 미치는 영향을 분석하였다. 출산 결정요인으로서 주택점유형태가 가지고 있는 내생성 문제를 해결하기 위해 축차형 이변량 프로빗모형을 추정방법으로 이용하였으며, 신혼가구의 출산을 첫째 자녀 출산과 둘째 자녀 출산으로 구분하여 분석함으로써 설명변수들이 출산에 미치는 차별적 영향을 분석하였다. 실증 분석 결과 자가점유는 신혼가구의 출산에 긍정적 영향을 미치는 것으로 나타났다. 전체 표본을 이용한 경우 자가점유 주택에 거주하는 신혼가구는 주택을 임차하여 거주하는 신혼가구에 비해 출산 확률이 16.2%p 높았으며, 둘째 자녀 출산에 대해서는 20.7%p 높은 것으로 분석되었다. 이러한 결과는 자가점유가 추가 자녀 출산을 중심으로 큰 영향을 미친다는 것을 의미하는데, 둘째 자녀 출산은 추가양육에 여력이 존재하는 가구에서 가능한 점을 비추어 볼 때 자가점유가 제공하는 주거안정과 미래 경제력 확보 가능성이 다자녀 출산에 중요한 역할을 한다는 것을 시사한다. In this study, the effects of housing tenure on the childbirth of newly-married households was analyzed using Korean Labor and Income Panel Study(KLIPS) data for eight years from 2011 to 2018. The Recursive Bivariate Probit model was estimated to control for endogeneity of housing tenure in childbirth decision. By dividing the full sample into a sample with no children and a sample with one child, the effects of home owning on the first birth and on the second birth were also examined. Estimation results showed that home owning had a positive effect on the birth of children. Home owning new-married households’ probability of giving birth was a 16.2% point higher than that of tenant households in the case of the full sample and a 20.7% point higher in the sub-sample of households with one child. These results imply that homeownership contributes to the birth of additional child. Housing stability and possibility of future wealth accumulation provided by homeowership play an important role in the birth of children.

NMOS 소자의 Ta-Ti 게이트 전극 특성

강영섭,서현상,노영진,이충근,홍신남 한국항행학회 2003 韓國航行學會論文誌 Vol.7 No.2

본 논문에서는 오래 전부터 NMOS의 게이트 전극으로 사용된 폴리실리콘을 대체할 수 있는 Ta-Ti 합금의 특성에 대해 연구하였다. 실리콘 기판 위에 열적으로 성장된 SiO₂위에 Ta과 Ti의 두 타깃을 사용하여 co-sputterring 방법으로 Ta-Ti 합금을 증착하였다. 각각의 타킷의 100W 의 sputtering power 로 증착하여 시편을 제작하였다. 또한 비교 분석을 위하여 Ta를 100W의 sputtering power로 증착한 시편도 제작하였다. 제작된 Ta-Ti 합금 게이트의 열적/화학적 안정성을 검토하기 위하여 600℃에서 급속열처리를 수행한 결과 소자의 성능 저하는 나타나지 않았다. 또한 전기적 특성 분석 결과 Ta-Ti합금은 NMOS 에 적합한 일합수인 4.13eV를 산출해 낼수 있었고, 면저항 역시 폴리실리콘에 비해 낮은 값을 얻을 수 있었다. In this paper, characteristics of Ta-Ti alloy was studied as a gate electrode for NMOS devices to replace the widely used polysilicon. Ta-Ti alloy was deposited directly on SIO_2 by a co-sputtering method using two of Ta and Ti targets. The sputtering power of each metal target was 100W. To compare with Ta-Ti, Ta deposited with a 100W sputtering power was fabricated as well. In order to investigate the thermal/chemical stability of the Ta-Ti alloy gate, the alloy was annealed at 600℃ with rapid thermal annealer. No appreciable degradation of the device was observed. Also the results of electircal analysis showed that the work function of Ta-Ti metal alloy was about 4.1eV which was suitable for NMOS devices and sheet resistance of alloy was lower than that of polysilicon.

산마늘 자생지의 임분구조와 식물종의 연관

김혜진 ( Hye Jin Kim ),윤총원 ( Chung Weon Yun ),도은수 ( Eun Soo Doh ),장준복 ( Jun Pok Chang ),최명석 ( Myung Suk Choi ),양재경 ( Jae Kyung Yang ),박희권 ( Hee Kwon Park ),신학섭 ( Hak Sub Shin ),이서희 ( Seo Hui Lee ),배관호 ( 한국산림과학회 2011 한국산림과학회지 Vol.100 No.4

This study was conducted to describe forest stand characteristics of the habitats of Allium victorialis var. platyphyllum population from the ecological analysis of classification of vegetation types, importance values, species diversity, interspecific association and community similarity in Ulleung Island and Mt. Hambaek, in which investigated by 48 plots (10 m×10 m). The vegetation studied was classified into 1 community group, 2communities, 2 groups and 3 subgroups for a species unit and divided by 5 units for a vegetation unit. In the Fagus engleriana group (vegetation unit 1, 2 and 3), importance value of A. victorialis var. platyphyllum in herb layer showed relatively higher value than other units. Importance value of A. victorialis var. platyphyllum in herb layer had higher value. In the analysis of interspecific association, most of the species associated positively to A. victorialis var. platyphyllum belonged to habitat features of valley area and sub-alpine zone. Therefore, it was considered that the growing environment of A. victorialis var. platyphyllum population was closely correlated to soil moisture and air humidity.

NMOS 소자에 대한 Ru₁Zr₁ 합금 게이트 전극의 특성

이충근,강영섭,홍신남,Lee, Chung-Keun,Kang, Young-Sub,Hong, Shin-Nam 한국전기전자재료학회 2004 전기전자재료학회논문지 Vol.17 No.6

This paper describes the characteristics of Ru-Zr alloy gate electrodes deposited by co-sputtering. The various atomic composition was made possible by controlling sputtering power of Ru and Zr. Thermal stability was examined through 600 and 700 $^{\circ}C$ RTA annealing. Variation of oxide thickness and X-ray diffraction(XRD) pattern after annealing were employed to determine the reaction at interface. Low and relatively stable sheet resistances were observed for Ru-Zr alloy after annealing. Electrical properties of alloy film were measured from MOS capacitor and specific atomic composition of Zr and Ru was found to yield compatible work function for nMOS. Ru-Zr alloy was stable up to $700^{\circ}C$ while maintaining appropriate work function and oxide thickness.

Structural Studies on the Effects of ZrO[sub 2] Coating on LiCoO[sub 2] during Cycling Using In Situ X-Ray Diffraction Technique

Chung, Kyung Yoon,Yoon, Won-Sub,McBreen, James,Yang, Xiao-Qing,Oh, Si Hyoung,Shin, Ho Chul,Cho, Won Il,Cho, Byung Won The Electrochemical Society 2006 Journal of the Electrochemical Society Vol.153 No.11

The Impact of Korean Franchise Coffee Shop Service Quality and Atmosphere on Customer Satisfaction and Loyalty

Chung-Sub Shin,Gyu-Sam Hwang,Hye-Won Lee,Sun-Rae Cho 한국유통과학회 2015 Asian Journal of Business Environment (AJBE) Vol.5 No.4

Purpose – The purpose of this study is to analyze franchise coffee shop service quality factors based on pilot research. In the proposed analysis, store atmosphere is added as one of the service quality factors. We aim to examine how franchise coffee shop service quality and store atmosphere influence customer satisfaction and loyalty. Research design, data, and methodology – Data was collected from 482 Korean coffee shop franchises and analyzed using frequency analysis, reliability/validity assessments, correlation analysis, and regression analysis with the software program SPSS 19.0. Results – The results are as follows. First, taste is revealed to be the most influential factor among components that have an impact on service quality. Second, taste also turned out to have the most impact on service quality among components influencing customer loyalty. Last, customer satisfaction affected customer loyalty. Conclusions – This study’s findings show that taste was the most influential factor on service quality. The conclusion here is that most of the coffee shop customers are very familiar with coffee taste and this is influencing their loyalty.

Bombyxamycins A and B, Cytotoxic Macrocyclic Lactams from an Intestinal Bacterium of the Silkworm <i>Bombyx mori</i>

Shin, Yern-Hyerk,Beom, Ji Yoon,Chung, Beomkoo,Shin, Yoonho,Byun, Woong Sub,Moon, Kyuho,Bae, Munhyung,Lee, Sang Kook,Oh, Ki-Bong,Shin, Jongheon,Yoon, Yeo Joon,Oh, Dong-Chan American Chemical Society 2019 ORGANIC LETTERS Vol.21 No.6

<P>Bombyxamycins A and B (<B>1</B> and <B>2</B>) were discovered from a silkworm gut <I>Streptomyces</I> bacterium. Spectroscopic analysis and multiple-step chemical derivatization identified them as 26-membered cyclic lactams with polyene features. Bombyxamycin A showed significant antibacterial and antiproliferative effects. The bombyxamycin biosynthetic gene cluster was identified by genetic analysis. Gene deletion experiments confirmed that the cytochrome P450 BomK is responsible for the generation of <B>2</B>, which unprecedentedly bears tetrahydrofuran in its macrocyclic ring.</P> [FIG OMISSION]</BR>

Role-Play Training Factors that Positively Influence Training Satisfaction and Customer Service Orientation

Chung-Sub Shin,Jae-Chul Nam,Hey-Soo Kim,Sang-Youn Lee 한국유통과학회 2015 유통과학연구 Vol.13 No.9

Purpose – The purpose of this study is to examine the influ-ence of effective role-play and training on employee education satisfaction and customer orientation. Evidence of the suggested objective is obtained by monitoring the effectiveness of hotel service training. Research design, data, and methodology – Data were col-lected from 280 role-play sessions performed in a Korean Hotel and examined using a frequency analysis, reliability/validity as-sessments, correlation analysis, and regression analysis using SPSS 19.0. Results – 1) Entrepreneurs and training instructors should en-thusiastically apply service education in order to enhance each employee d evaluation in terms of customer satisfaction and customer orientation. 2) The most effective factor on customer satisfaction and orientation is the instructor’s qualifications. 3) Since a higher level of education-training satisfaction leads to better customer orientation, effective education-training is essen-tial to achieve this result. Conclusions – The study was able to obtain practical evi-dence that can confirm that service education-training through role-play positively affects employee customer service orientation. In future advanced research on training effects on customer orientation, various internal factors of a business should also be considered.

Combined effect of sodium hypochlorite and gamma-irradiation for the control of <i>Vibrio vulnificus</i> in fresh oyster and clam

Park, Shin Young,Chung, Myung-Sub,Ha, Sang-Do Elsevier 2018 FOOD SCIENCE AND TECHNOLOGY -ZURICH- Vol.91 No.-

<P><B>Abstract</B></P> <P>This study investigated the synergistic bactericidal effects of treatment with a combination of sodium hypochlorite (NaOCl) and gamma irradiation against <I>Vibrio vulnificus</I> on shucked oysters and clams. The <I>V. vulnificus</I> population decreased to 1.1–4.8 and 1.2–4.8 log<SUB>10</SUB> colony forming units/g in oysters and clams, respectively, after treatment with a combination of NaOCl (20–80 ppm) and gamma irradiation (0.1–2.0 kGy). <I>V. vulnificus</I> was not detected on oysters or clams after exposure to 60–80 ppm NaOCl and then 2.0 kGy gamma irradiation, where a >2-log synergistic reduction in bacterial population was observed. Based on the Weibull model, 5D-values for 5-log reductions were calculated for treatment with 60 ppm NaOCl with 1.1 kGy irradiation and 80 ppm NaOCl with 0.9–1.0 kGy gamma irradiation. These results indicate treating <I>V. vulnificus</I> populations 5 logs in size with a combination of 60 or 80 ppm NaOCl and 0.9–1.1 kGy gamma irradiation could be a strategy used in post-harvest processing of seafood and distribution to enhance the microbial safety of molluscan shellfish.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>V. vulnificus</I> decreased to 1.1–4.8 log in oysters by 20–80 ppm NaOCl +0.1–2.0 kGy γ-irradiation. </LI> <LI> <I>V. vulnificus</I> decreased to 1.2–4.8 log in clams by 20–80 ppm NaOCl +0.1–2.0 kGy γ-irradiation. </LI> <LI> <I>V. vulnificus</I> was not detected in the samples by combined 60–80 ppm NaOCl and 2.0 kGy γ-irradiation. </LI> <LI> 5D-values were calculated for 60 ppm NaOCl/1.1 kGy and 80 ppm NaOCl/0.9–1.0 kGy. </LI> <LI> Combined 60 or 80 ppm NaOCl and 0.9–1.1 kGy γ could be a strategy to enhance the microbial safety. </LI> </UL> </P>

외식창업자의 창업성공요인이 창업성공 및 창업권유에 미치는 영향

신충섭(Shin, Chung-Sub),황규삼(Hwang, Gyu-Sam),김혜숙(Kim, Hye-Sook) 청운대학교 관광산업연구소 2015 관광산업연구 Vol.9 No.2

This research analyzes the effect of a restaurant founder’s success factors on successful business and suggestion of commencement. The purpose of this report is to suggest entrepreneur’s business establishing strategies and implications based on the result. The analysis of the collected are the following: First of all, by using a multiple regression analysis on how a restaurant’s success factors influence the success of commencement, four variables have been identified to be related to the success. They are goal directedness, activeness, risk-taking tendency, and confidence and study directivity. As a result, rest of the variables - empowerment, usage of technology, teamwork and other factors - have been omitted. Second, a multiple regression analysis is used to find out the impact on suggestion of commencement, and confidence, research directedness, risk-taking tendency, usage of information, empowerment, object directedness and other factors are found out to be related while other variables - assertiveness and teamwork - have been disregarded. Third, a simple regression analysis is used to find out the effect of success of commencement on suggestion of it. As a result, the variable which has an impact on the suggestion was turned out to be the factors of success of commencement itself.