보고 싶은 북한 동포 친구에게

홍성권 한국국어교육학회 1999 세계가 한동네 Vol.1999 No.-

효율적인 다중 단계 트렐리스 부호화된 부분중첩 QAM

홍성권,강창언 에스케이텔레콤 (주) 1997 Telecommunications Review Vol.7 No.6

본 논문에서는 다중 단계 트렐리스 부호화된 부분중첩 QAM신호가 제안되어지고 이에 대한 수학적인 해석방법과 컴퓨터 시뮬레이션에 의한 성능분석이 고찰된다. 또한, 복호복잡도와 대역폭효율관점에서의 분석도 제시된다. 다중 단계 트렐리스 부호화된 부분중첩 QAM방식은 12개의 신호점을 사용하는 경우 기존의 트렐리스 변조에 대하여 낮은 복잡도를 가지면서 2.5비트/초/Hz의 대역폭효율을 갖는 동시에 QPSK에 대하여 4.26dB의 부호화 이득을 갖는다. 따라서, 기존 트렐리스 변조방식과 비교하여 전력과 대역폭 효율면에서 매우 우수한 특성을 보임을 알 수 있다.

관광참여가 주관적 안녕감에 미치는 영향

홍성권,안경진,김종진,Hong, Sung-Kwon,An, Kyoung Jin,Kim, Jong-Jin 한국조경학회 2014 韓國造景學會誌 Vol.42 No.3

본 연구의 목적은 (a) 관광참여가 주관적 안녕감에 미치는 영향력을 검증하고, (b) 관광 참여자와 비참여자 간의 동기, 제한요소 및 개인적 가치의 차이가 주관적 안녕감에 미치는 영향을 이론적으로 설명하기 위함이다. 자료는 여론조사 조사기관이 전국의 주요 도시민들을 대상으로 쿼터샘플링한 후 온라인 조사로 수집하였다. 분산분석과 회귀분석 결과, (a) 참여자들은 자기주도적인 성향이 높아 주관적 안녕감을 높일 수 있는 수단으로 관광을 선택하였으며, (b) 비참여자들보다 관광 동기가 높아 이것을 실천할 수 있는 여행목표를 세웠고, (c) 제한요소가 적어 관광을 쉽게 실행할 수 있어, 관광후의 경험이 전체적인 주관적 안녕감의 향상으로 이어졌다. 또한, 관광 참여 여부와 응답자 자신이 평가한 주관적 경제상태는 주관적 안녕감을 설명하는 주요 변수이었으며, 전체 분산의 21.1%를 설명하였다. 관광을 통해 주관적 안녕감을 향상시킬 수 있는 관리측면에서의 제언과 추후연구를 위한 본 연구의 한계점을 기술하였다. The purposes of this study are two folds: (a) to identify the influences of tourism on subjective well-being, and (b) to understand the roles of travel motivation, constraint and personal value in subjective well-being. A polling agency was employed to select 500 respondents by quota sampling, and data was collected by online survey. ANOVA and regression results showed that tourism participants, compared to the non-participants, have a tendency to select tourism as a mean to enhance their subjective well-being because they are more self-motivated people. Their high motivation to take a trip lead to set up their feasible goals to achieve by the tourism experience and their relatively few constraints help them to have trip easily. The people's satisfaction in tourism contributes to the satisfaction in his/her leisure life, which in turn contributes to his/her subjective well-being. It is also revealed that tourism participation and subjective income level are significant variables affecting subjective well-being, which explain 21.1 percent of the variance. The research suggests various managerial implications to reduce constraints and several ideas for future researches.

여행경험과 외상적 사건이 주관적 웰빙에 미치는 상호작용

홍성권,안경진,장호찬,Hong, Sung-Kwon,An, Kyung-Jin,Jang, Ho-Chan 한국조경학회 2017 韓國造景學會誌 Vol.45 No.2

본 연구는 여행참여와 외상적 사건이 주관적 웰빙에 미치는 영향을 검증하였다. 이를 위하여, 긍정적 감정, 부정적 감정 그리고 삶의 만족도를 종속변수로, 여행참여 여부와 외상적 사건의 회상정도를 독립변수로 하여 유사실험을 설계하였다. 2~3주 간격으로 4번 수집한 종단자료를 반복측정 분산분석으로 분석한 결과, 여행참여는 긍정적 감정과 삶의 만족도를 향상시켰으며, 그 효과는 4주 이상 지속되어 여행은 사람들의 주관적 웰빙을 향상시키는 수단이라는 것을 밝혔다. 외상적 사건을 많이 회상한 집단은 부정적 감정이 사고 직후부터 높아졌으며, 그 영향은 7주 이상 지속되었다. 부정적 사건은 긍정적 사건보다 주관적 웰빙에 미치는 영향력이 강하며, 오래 가는 경향이 있기 때문이었다. 여행과 마찬가지로 도시공원 방문도는 즐거운 여가경험이기 때문에 본 연구의 결과를 적용해 도시공원이 중장기적으로 도시민의 주관적 웰빙을 증가 또는 유지시키며, 스트레스를 완화시킬 수 있는 수단이라는 점을 고찰하였다. This study used a quasi-experimental method to investigate if both travel involvement and the degree of recall of a traumatic event affect subjective well-being. For this, independent variables such as positive affect, negative affect, and life satisfaction were established. Four waves of data collection were performed with two to three weeks intervals, then the collected longitudinal data were analysed by repeated measure ANOVA. The study results indicated that travel involvement increases positive affect and life satisfaction, with the effect lasting four weeks or more, which means that travel is an effective tool to boost subjective well-being. Respondents who thought about a traumatic event more frequently had a much higher negative affect following the disaster, and such increased negative affect was maintained over seven weeks or longer. Therefore, this study finds that negative events produce larger, more consistent, or more lasting effects than positive events. As well as travel participation, visiting an urban park is a pleasurable experience. Therefore, the study also finds that urban parks could be utilized for increasing and maintaining subjective well-being in the middle and long term as well as lessening personal stress.

농촌지역 관광지개발에 있어 관광권 설정에 관한 연구 -전남 회남로를 사례로-

홍성권 한국조경학회 1990 韓國造景學會誌 Vol.18 No.1

This study was carried out in the Haenahm county as a part of project, the'89 Comprehensive Planning of Rural Area. In order to increase household income of rural area and to meet increasing tourism demand in urban area, several tourism development directions and strategies were suggested in terms of resources, services, and transportation. The major results of this study are summarized as follows ; 1) Core tourism market has to be maintained by inforcement of unique image of the Haenahm county, such as the southern extremeity of Korean peninsula and tourism resources rich land. 2) New tourism products need to be introduced to attract fringe market of this area by use of natural and cultural resources in the Haenahm county, such as terrain, climate, provincial park, music, dance and artifacts. 3) image of this county as a touristic resort would be escalated by development of high quality andclusterized accommodation in urbanized area of the Haenahm county 4) Development of private lodging, production of local brand by native food, beverage and artifacts, introduction of festival by folk song and folk dance would be helpful to stabilize a seasonal fluctuating demand level of ourismandlocalresidentsincome. 5) Diversification of tourism product needs to be provided for tourists in order to increase chances for enjoyment in the destination and to be involved in socially comfortable atmosphere. 6) Package tour by diversification of touristic subregions in this county and linkage system with touristic regions of other counties would helpful to lead visitors to stay long, resulting in increased expenditure.

주제공원 이용자들의 선택행동 연구 -Constraints-Induced Conjoint Choice Model의 적용-

홍성권,이용훈 한국조경학회 2000 韓國造景學會誌 Vol.28 No.2

The importance of constraints has been one of major issues in recreation for prediction of choice behavior; however, traditional conjoint choice model did not consider the effects of these variables or fail to integrate them into choice model adequately. The purposes of this research are (a) to estimate the effects of constraints in theme park choice behavior by the constraints-induced conjoint choice model, and (b) to test additional explanatory power of the additional constraints in this suggested model against the more parsimonious traditional model. A leading polling agency was employed to select respondents. Both alternative generating and choice set generating fractional factorial design were conducted to meet the necessary and sufficient conditions for calibration of the constraints-induced conjoint choice model. Th alternative-specific model was calibrated. The log-likelihood ratio test revealed that suggested model was accepted in the favor of the traditional model, and the goodness-of-fit($\rho$$^2$) of suggested and traditional model was 0.48427 and 0.47950, respectively. There was no difference between traditional and suggested model in estimates of attribute levels of car and shuttle bus because alternatives were created to estimate the effects of constraints independently from mode related variables. Most parameters values of constraints had the expected sign and magnitude: the results reflected the characteristics of the theme parks, such as abundance of natural attractions and poor accessibility in Everland, location of major fun rides indoor in Lotte World, city park like characteristics of Dream Land, and traffic jams in Seoul. Instead of the multinomial logit model, the nested logit model is recommended for future researches because this model more reasonably reflects the real decision-making process in park choice. Development of new methodology too integrate this hierarchical decision-making into choice model is anticipated.

2기 위암환자의 수술 후 보조 항암요법 및 방사선 치료가 생존율에 미치는 영향

홍성권,최민규,백용해,노재형,손태성,김성,Hong, Seong-Kweon,Choi, Min-Gew,Baik, Yong-Hae,Noh, Jae-Hyung,Sohn, Tae-Sung,Kim, Sung 대한위암학회 2005 대한위암학회지 Vol.5 No.4

목적: UICC 분류에 의한 2기 위암환자의 임상병리학적 특징에 대하여 알아보고 수술 후 보조요법으로서의 항암, 방사선 치료가 5년 생존율에 미치는 효과에 대하여 알아보고자 하였다. 대상 및 방법: UICC에 의한 병리학적 분류로 병기2기로 판정된 954명을 대상으로 하였다. 항암치료는 수술 후 3주째부터 5-Fluorouracil $400mg/m^2/day$와 Leucovorin $20mg/m^2/day$를 사용하였으며 방사선 치료는 총 4,500 cGy를 25회로 나누어 시행하였다. 결과: 임상병리학적 인자들의 생존율분석에서 환자의 나이, 수술방법, 종양의 크기와 항암 및 방사선 치료가 의미 있는 예후 인자로 분석되었다. 수술 후 항암 방사선 치료에 따른 생존율 분석에서 보조요법을 시행하지 않은 425예의 5년 생존율은 67.9%, 항암 치료 군 187예는 79.8%, 항암방사선 치료 군 342예는 83.6%로 조사되어 통계적으로 유의한 차이를 보였으며(P<0.0001) 항암치료 군과 항암방사선 치료 군과의 생존율 비교에서는 항암방사선 치료 군에서 생존율의 향상을 보여주기는 하였으나 통계적으로 유의하지는 않았다(P=0.1264). 결론: 2기 위암환자에서 환자의 나이, 수술방법, 종양의 크기 및 수술 후 보조적인 항암 및 방사선 치료가 5년 생존율에 영향을 주는 의미 있는 예후인자로 조사되었다. 수술 후 보조요법의 시행이 통계적으로 의미 있는 생존율을 보였으나 임상병리학적 인자들을 고려한 무작위 연구를 통해 그 의미를 검증해야 할 것으로 생각된다. Purpose: This study was conducted to evaluate the effectiveness and the role of post-operative adjuvant chemoradiation therapy in a stage-II (UICC, 1997) primary gastric cancer. Materials and Methods: From September 1994 to December 2004, 954 stage-II gastric-cancer patients were seen, and all of them underwent a curative resection with extensive (D2) lymph-node dissection. The chemotherapy consisted of fluorouracil $(400mg/m^2)$ plus leucovorin $(20mg/m^2)$ for 5 days, followed by 4,500 cGy of radiotherapy for 5 weeks with fluorourcil and leucovorin on the first 4 days and the last 3 days of radiotherapy. Two five-day cycles of chemotherapy were given four weeks after the completion of radiotherapy. The Kaplan-Meier method was used to estimate the survival rates. To assess the importance of potential prognostic factors, we performed univariate and multivariate analyses using a log-rank test and Cox's proportional hazards regression model. A P value <0.05 was considered significant. Results: Univariate analysis revealed that age, tumor size, gross type, surgical method, and postoperative adjuvant therapy had statistical significance. Among these factors, age, surgical method, tumor size, surgical method, and postoperative adjuvant therapy were found to be independent prognostic factors by using a multivariate analysis. The postoperative adjuvant chemotherapy group and the chemoradiation therapy group had survival benefit compared to the surgery-only group. However the chemoradiation therapy group had no significant survival benefit compared to the chemotherapy group. Conclusion: The postoperative adjuvant therapy in stage-II gastric-cancer patients had significant benefit. Therefore, postoperative adjuvant chemoradiation therapy has an acceptable effect. A large-scale, randomized study is needed to evaluate the effectiveness and the role of postoperative radiation therapy.

2기 위암환자의 수술 후 보조 항암요법 및 방사선 치료가 생존율에 미치는 영향

홍성권 대한위암학회 2005 Journal of gastric cancer Vol.5 No.4

녹색관광의 참여의도에 관여하는 영향인자와 제한요소 규명

홍성권,김성일 한국조경학회 2002 韓國造景學會誌 Vol.30 No.1

This research is a preliminary empirical investigation to segment the green tourism market by intention, which is a major precedent variable determining the behavior(i.e., participation in green tourism). Then, characteristics of each segmented group such as their socio-demographic variables, green tourism attitude, types of attractions they want to be provided in destination, and constraints to participate in green tourism were compared to give information useful for green tourism managers. Data was collected by a polling agency on a total of 608 residents of Seoul, who would be potential green tourists. Three green tourist groups were identified by intention to participate. The results showed that only gender among socio-demographic variables, two constraint factors, green tourism attitude, and s]me attractions were statistically significant. It is worth noticing, however, that there was no difference in green tourism attitude between the two groups that have the strongest and the weakest intention to participate in green tourism. This result means that the green tourism attitude does not always influence positively on the formation of intention. Perceived behavioral control construct such as cost may played an important role in lowering intention to visit. Based on the findings, several marketing strategies were suggested such as identification of target market and inducing potential green tourists to participate.

X-선 회절을 이용한 고분자 구조 결정

홍성권 한국섬유공학회 1991 한국섬유공학회지 Vol.28 No.6