구개상의 형태 변화가 발음에 미치는 영향에 관한 음향학적 연구 -/ㅅ/을 중심으로한 컴퓨터 분석-

최창규,우이형,박남수,Choi, Chang-Kyu,Woo, Y.H.,Park, Nam-Soo 대한치과보철학회 1989 대한치과보철학회지 Vol.27 No.1

This study was done to analyze the sound distortion, before and after insertion of the palatal palates. For this study, 4 healthy subjects (3 males and 1 female, each 24-year-old), who were born in Seoul were recruited from K university, and 3 type palatal plates were fabricated, each palatal thickness being 1.0mm, 2.5mm, dentoalveolar portion 2.5mm and elsewhere 1.0mm, named B,C,D-type repectively, and informants's sounds of /사(sa), 서(se), 소(so), 수(su), 스($s\.{+}$), 시(si)/ were recorded, without plate, and with palatal plates of different types, in succession. A series of analysis were adminstered through a 16 Bit IBM PC/AT using linear combination methods. These experiments were analyzed by the Cepstrum (Weighted and Euclidian), Log Area Ratio, Linear prediction correlation methods The findings led to the following conclusions : 1. It was confirmed that the same consonant, /ㅅ(s)/, variously distorted by the following vowel. 2. By and large, 시($s\.{+}$) was the most distorted in all conditions, and (sa), 소(so) were the least distorted in each condition. 3. There were no persistant correlation of the palatal plate types, and sound distortions of each informant were diverse with no regularities. 4. There were persistent correaltion to the Cepstrum (Weighted, Euclidian), Log Area Ratio. However, Linear prediction correlation has a different alteration pattern.

Does exchange-rate volatility have a precautionary saving effect on the current account? The case of Korea

최창규 ( Chang Kyu Choi ),이명훈 ( Myung Hoon Yi ) 한국국제경제학회 2003 한국국제경제학회 동계학술대회 Vol.2003 No.3

국제투자 : 국별 외국인 직접투자의 결정요인분석

최창규 ( Chang Kyu Choi ) 한국국제경제학회 2003 한국국제경제학회 동계학술대회 Vol.2003 No.5

Linder Hypothesis Revisited

최창규 ( Chang Kyu Choi ) 한국국제경제학회 2001 한국국제경제학회 동계학술대회 Vol.2001 No.3

골프소비자의 지각된 서비스품질, 고객만족, 골프장이미지 및 재방문의도간의 관계

최창규(Choi Chang-Kyu) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.1

The purpose of this study was to examine the relationship among golf course service quality, customer satisfaction, image, and the intention to revist by golfer's. To achieve this purpose of the study, after setting up customer of golf course and golf driving range in Korea, may-june, 2008 as a population, total 800 persons with a convenience sampling method as an object and utilized 661 copies as the last study data. On the basis of the data 661 persons collected, as the result which enforced the frequency analysis, the exploratory factor analysis, the confirmatory factor analysis, correlation analysis and the structural equation model analysis with SPSS 12.0 and AMOS 4.0, it induced the following conclusion. First, it was appeared that Unexpected Benefits and Physical Evidence among golf course service quality factors had a significant influence on Customer Satisfaction. Second, it was appeared that Primary Needs Fulfillment and Physical Evidence among golf course service quality factors had a significant influence on Image. Third, it was appeared that Customer Satisfaction had a significant influence on Image of golf course. Forth, it was appeared that Customer Satisfaction had a significant influence on Intention to Revist. Fifth, it was appeared that Image of golf course had a significant influence on Intention to Revist.

20대 여성의 BMI와 체지방률에 따른 체력, 대사증후군 위험요인 및 기초대사량의 비교 분석

최창규 ( Chang-kyu Choi ),조현석 ( Hyun-seok Cho ),이만균 ( Man-gyoon Lee ) 한국스포츠정책과학원(구 한국스포츠개발원) 2018 체육과학연구 Vol.29 No.3

[목적] 마른비만(normal weight obesity: NWO)은 체질량지수(body mass index: BMI)가 정상이지만 체지방률이 높은 비만으로서, 주로 20대 여성에게서 나타나며 다양한 질환의 위험요소를 내포하고 있지만, 마른비만의 체력과 대사적 특성을 기초대사량(resting metabolic rate: RMR)까지 포함하여 규명한 연구가 매우 부족한 실정이다. 이 연구의 목적은 20대 여성의 BMI와 체지방률에 따라 체력, 대사증후군 위험요인, 그리고 RMR을 비교ㆍ분석하는 것이었다. [방법] 이 연구의 대상자는 20대 여성 51명으로서 BMI와 체지방률에 따라 정상집단(Normal; n=18), 마른비만집단(NWO; n=18), 그리고 일반비만집단(Obesity; n=15)의 세 집단으로 구성하였고, 각 집단 간에 체력, 대사증후군 위험요인, 그리고 RMR을 비교하였다. [결과] 이 연구에서 얻은 주요 결과는 다음과 같다. 1) 체력은 세 집단 간에 유의한 차이가 나타나지 않았다. 2) 1-RM과 관련하여, Normal과 NWO의 arm curl 및 leg extension이 Obesity에 비하여 유의하게 낮았으며, Normal의 leg press가 Obesity에 비하여 유의하게 낮았다. 3) 대사증후군 위험요인과 관련하여, 허리둘레는 세 집단 간에 모두 유의한 차이가 있었으며, Normal, NWO, 그리고 Obesity 순으로 낮게 나타났다. Normal과 NWO의 SBP 및 DBP가 Obesity에 비하여 유의하게 낮았으며, Normal의 HDL-C가 NWO와 Obesity에 비하여 유의하게 높았다. 4) RMR과 관련하여, RMR의 절대값을 평가한 VO₂(㎖·min^-1), RMR(Kcal·min^-1), RMR(KJ·min^-1), 그리고 RMR(Kcal·day^-1)의 경우 Normal이 NWO와 Obesity에 비하여 유의하게 낮았다. 반면, RMR의 상대값을 평가한 RMR(KJ·kg-1FW·h^-1)의 경우 Normal이 NWO와 Obesity에 비하여 유의하게 높았다. [결론] 이상의 결과를 종합해보면, 20대 여성 일반비만자의 경우 체력에는 문제가 없지만 대사증후군 위험도가 높고 제지방량당 RMR이 낮아 대사율이 낮은 것으로 나타났으며, 마른 비만자도 일반비만자와 유사한 문제점을 보였다고 결론지을 수 있다. 마른비만자는 외형상 문제가 없어 보이지만 20대부터 대사증후군의 발병과 대사율의 감소가 나타날 가능성이 크므로 20대부터 적절한 신체활동과 식이조절을 통한 적극적인 건강관리가 요청된다. [Purpose] The present study compared physical fitness, metabolic syndrome risk factors, and resting metabolic rate (RMR) according to body mass index (BMI) and percent body fat (%BF) in 20s females. [Methods] Fifty-one women in their 20s were recruited and assigned into three groups, i.e., normal group (n=18), normal weight obesity (NWO) group (n=18), and obesity group (n=15) according to BMI and %BF. Physical fitness, metabolic syndrome risk factors, and RMR were measured and compared among three groups. [Results] Main results were as follows: 1) Physical fitness were not significantly different among three groups. 2) Regarding 1-RM, arm curl and leg extension were significantly lower in normal group and NWO group than obesity group. Leg press was significantly lower in normal group than obesity group. 3) Regarding metabolic syndrome risk factors, there were significant differences in waist circumference, ordering from low to high such as normal, NWO, and obesity groups. Systolic blood pressure and diastolic blood pressure were significantly lower in normal group and NWO group than obesity group, while HDL-C was significantly higher in normal group than NWO group and obesity group. 4) Regarding RMR, absolute values of RMR such as VO₂(㎖·min^-1), RMR (Kcal·min^-1), RMR (KJ·min^-1), and RMR (Kcal·day^-1) were significantly lower in normal group and NWO group than obesity group. On the other hand, relative value of RMR such as RMR (KJ·kg^-1FW·h^-1) was significantly higher in normal group than NWO group and obesity group. [Conclusions] It was concluded that obese women showed increased risk of metabolic syndrome and low relative RMR level, and NWO had similar problems. Active health management through physical activity and dietary control should be committed to NWO individuals because the NWO has possibility of high risk of metabolic syndrome and reduction of metabolic rate from 20s even though there was no problem in their external appearance.

Ease of Doing Business and Foreign Direct Investment Flows

최창규 ( Chang Kyu Choi ) 한국국제경제학회 2008 한국국제경제학회 동계학술대회 Vol.2008 No.-

스키리조트의 지각된 서비스품질, 서비스가치, 고객만족 및 고객애호도의 인과관계

최창규(Choi Chang-Kyu),한상덕(Han Sang-Duck) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.1

The purpose of this study was to make a close inquiry into a causal relationship among service quality, service value, customer satisfaction and customer loyalty in Ski resort. To achieve this purpose of the study, after setting up customer of Ski resort in Kang-Won Do in February, 2008 as a population, total 550 persons with a convenience sampling method as an object and utilized 543 copies as the last study data. On the basis of the data 543 persons collected, as the result which enforced the frequency analysis, the exploratory factor analysis, the confirmatory factor analysis, correlation analysis and the structural equation model analysis with SPSS 12.0 and AMOS 4.0, it induced the following conclusion. First, it was appeared that the service quality of Ski resort had a significant influence on service value and customer satisfaction. Second, it was appeared that the service quality of Ski resort didn't have a significant influence on customer loyalty. Third, it was appeared that the service value of Ski resort had a significant influence on customer satisfaction. Forth, it was appeared that the service value of Ski resort didn't have a significant influence on customer loyalty. Fifth, it was appeared that the customer satisfaction of Ski resort had a significant influence on customer loyalty.

외국인 주식거래와 주가수익률 변동성

최창규(Chang-Kyu Choi) 한국경제통상학회 2005 경제연구 Vol.23 No.2

우리나라는 1990년대 들어서면서 전세계적으로 급속히 진행되고 있는 자본자유화의 일환으로 1992년 이후 외국인에 의한 국내 주식시장에서의 거래를 단계적으로 허용하기 시작하였다. 외국인들의 국내 주식시장에의 참여확대가 과연 국내 주식시장의 변동성에 어떠한 영향을 미치는가를 분석하고자 하였다. 1995년 1월 3일부터 2003년 5월 14일까지의 일별 종합주가지수 수익률과 금액 및 건수기준으로 전체거래량 중 외국인거래가 차지하는 비중을 사용하였다. MA(1)-GARCH(1,1), MA(1)-EGARCH(1,1), MA(1)-GJR(1,1) 모형을 추정한 결과 주식시장에서 외국인들의 거래비중이 증가함에 따라 주식수익률의 조건부 분산이 커지는 것으로 나타났다. 다시 말하면 외국인의 우리나라 주식시장참여확대가 우리나라 주식시장의 변동성을 증대시키는 것으로 나타났다. 그 외에도 주식가격제한폭 확대와 월요일 효과는 조건부 분산을 증가시키는 것으로 나타났다. 그리고 좋은 뉴스충격보다도 나쁜 뉴스충격에 대해 주가수익률 변동성이 더 크게 반응하는 비대칭적인 영향이 있는 것으로 나타났다. 외국인의 국내 주식시장 참여가 확대될수록 주식시장의 안정성확보가 중요한 정책과제가 될 것이다. Foreigners are gradually allowed to buy Korean stocks since 1992. The effect of the increase in foreigner's stock trading in Korea on the stock return volatility has been investigated using daily KOSPI data from January 3, 1995 to May 14, 2003. Estimation results from MA(1)-GARCH(1,1), MA(1)-EGARCH(1,1), and MA(1)-GJR(1,1) show that when the ratio of foreigners to all traders in Korean stock market increases, the conditional variance of stock return increases. This means that the foreigner's participation in Korean stock market tends to destabilize the stock market. Widening restriction of price range and Monday effect proved to increase the stock market volatility. Furthermore stock return volatility turned out to be bigger in response to bad news rather than to good news. Securing stock market stability becomes important for policymakers as Korean stock market gets more exposed to foreign investors.

외환전자중개와 환율변동성

최창규 ( Chang Kyu Choi ) 한국국제경제학회 2005 국제경제연구 Vol.11 No.1