Location fprecast scheme using the differential value of received signal strength in wireless network

Choi, Seong-Gon 충북대학교 컴퓨터정보통신 연구소 2005 컴퓨터정보통신연구 Vol.13 No.1

We propose a method that an MS (Mobile Station) forecasts a target area by using the differential value of RSSI (Received Signal Strength Indicator) in handoff process. The RSSI value will increase if the MS gets near to a BS (Base Station) and vice versa. If an MS goes to a BS and then turns its direction toward another BS, the RSSI value from the previous BS will increase and then decrease. At turning point, the differential RSSI value from the BS will change into minus from plus. By using this mechanism, we can forecast the direction of a moving MS. Therefore proposed scheme can be effectively used in the region, in which an MS changes its wireless cell frequently.

헤어리베치 신품종 조생종 콜드그린과 중만생종 청파의 생육특성 및 수량성

신정남(Chung Nam Shin),고기환(Ki Hwan Ko),김종탁(Jong Tak Kim),이종경(Joung Kyong Lee),서성(Sung Seo),성병렬(Byung Ryul Seong),최기준(Gi Jun Choi),김종덕(Jong Duk Kim),오명곤(Myung Gon Oh) 한국초지조사료학회 2007 한국초지조사료학회지 Vol.27 No.4

본 시험의 목적은 대구 경북에 자생하는 헤어리베치로 다수성 조생품종과 중만생품종을 개발하기 위하여 수행하였다. 경북 성주와 경남 사천에서 1998년부터 2006년까지 자료수집 및 순화, 생육이 왕성한 조생 및 중만생계통선발, 상호교잡의 단순순환선발법으로 조생종인 콜드그린과 중만생종인 청파를 육성하였다. 육성종자는 2004년부터 2006년까지 경북성주와 경남사천에서 생육특성과 수량을 평가하였다. 줄기의 털은 콜드그린과 청파는 있었으나, 헤이메이커프러스와 라티고는 없었다. 잎의 모양은 콜드그린은 엽폭이 넓은 장타원형이고, 청파, 헤이메이커프러스, 라티고는 좁은 장타원형이었다. 꽃색은 콜드그린은 자주색이고 청파는 보라색이었다. 내한성은 성주에서 콜드그린, 청파, 라티고가 헤이메이커프러스 보다 높았으며 사천에서는 차이가 적었다. 개화기는 콜드그린과 헤이메이커프러스가 조생종으로 유사했고 중만생종인 청파는 라티고 보다 다소 빨랐다. 성주에서 건물수량은 콜드그린이 다른 품종 보다 높았으며 청파와 헤이메이커프러스는 라티고 보다 높았다(P<0.05). 2005년 사천에서는 콜드그린과 헤이메이커프러스는 다른 품종보다 높았으며, 청파는 라티고 보다 높았다(P<0.05). 베치의 조단백질 함량은 높고 ADF의 함량은 낮았다. The objective of this research was to develop a high yielding, early and medium-late flowering new hairy vetch(Vicia villosa Roth) varieties derived from an accession in Korea. Most vigorous early and medium-late flowering hairy vetch lines were selected and crossed by open pollination and their seeds were bulked and plants were reselected at Seongju in the Keongbuk and at Sacheon in the Keongnam. A performance trial was conducted to evaluate agronomic characteristics, forage quality and dry matter(DM) yield of new hairy vetch early-maturing 'Cold green' and medium-late maturing variety 'Cheong pa' at Seongju and Sacheon. 'Cold green' and 'Cheong pa' are hair but 'Haymaker plus' and 'Latigo' are nearly hairless. 'Cold green' has purple flowers while 'Cheong pa' has violet. The cold tolerance of 'Cold green,' 'Cheong pa' and 'Latigo' was higher than 'Haymaker plus' at Seong-ju, Keongbuk province, in inland region but there were a little differences at Sacheon, Keongnam province in southern coast region. Fifty percent-flowering dates of 'Cold green' and 'Haymaker plus' had earlier than others and 'Cheong pa' was earlier than 'Latigo'. The DM yield of 'Cold green' was higher than that of others, but 'Cheong pa' and 'Haymaker plus' had higher than 'Latigo' at Seong-ju(P<0.05). In Sacheon, The DM yield of 'Cold green' and 'Haymaker plus' was higher than others and 'Cheong pa' had higher than 'Latigo'.

양성 및 비양성 뇌교출혈의 임상방사선학적 연구

김병곤,이한보,박성호,노재규,노재규 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

靑少年의 餘暇環境 實態 調査 硏究 : 濟州道 북제주군 中·高等學生을 中心으로 Centering on Buk-Cheju-Gun Junior and high school students

김승곤 제주대학교 1992 논문집 Vol.35 No.1

The purpose of this study was to investigate actual states on the youth leisure environment (i.e, an outlook on leisure, leisure participation pattern, leisure facilities, and soundness of leisure), and further to determine the leisure functioning of the youth leisure participation and provide some basic information for the relevant authorities to devise basic plan for establish the youth discipline center For this study, the questionnaires were given to 500 young boys and girls who were chosen at cluster sampling among the youth at Buk-Cheju-Gun in Cheju-do. The major findings obtained from this study were followings. First, with regard to leisure, cognition, a large percentage of they youth thought of leisure as a creative activities for self-culture or an opportunity for enjoyment through the art and sport/physical activities. But as regards leisure satisfaction, most of the students unsatisfied on leisure activities Second, with regard to relation leisure to health, the majority of young people perceived that leisure has a function of importance for physical and mental health. Such activities for improve physical and mental health included active sport activities, such as table tennis, jogging, fishing, camping/climing, and soccer etc. Third, the primary leisure activities participated in leisure time were table tennis, badminton. rid bicycle, skipping etc. If the circumstances permit, the young students were hoping for participate in table tennis, tennis, hangglider, riding, camping/climbing, windsurfing etc. Fourth, with regard to leisure facilities frequently use in ordinary times, a playground was the first to use and followed by pingpong house, library/private library, roller, skate, electronic game room, theaters, all sorts of exercise hall, basketball court etc. The students usually perceived insuffcient facilities as gymnasium, playground, table tennis hall, swimming pool, badminton court, etc. Fifth, if the circumstances permit, sport related facilities hope for investment included gymnasium, swimming pool, table tennis hall, ski, riding course, rooler skate space etc. In cultural facilities departement, the students had a desire for facilities such as library, youth-theather, dilettante room, computer room, bikeroad, stroll road etc. This survey result discussed in terms of leisure fscilities/space, education, and leisure values. More specifically, acquisition of space and facilities for the conduct of leisure/sport activities is one of the most urgent needs. Thus, on the national level, the public authorities should efforts to make leisure and sport facilities available to the youth. also schools should offering more opportunities for diversified leisure education, and organizes out-of-class programs. Finally, we should reconsider the value of physical actitvity programs including games and sports for the teen-agers.

정상 성인에서 Amitriptyline이 수면구조와 정신생리적 기능에 미치는 영향

홍성곤,신석철,왕성근 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.1

To investigate the effects of Amitriptyline on sleep structure and psychophysiologic function in normal adults, author applied polysomnography for sleep structure, reaction time for attention and visual analogue test for daytime fatigue, mood and sleepiness to the volunteers. The subjects were 8 healthy young adults, aged from 20 to 24 years old. The results were summarized as follows. 1. In normal adults, there were great individual variations in the ditribution of relative value(%) of sleep structure. 2. Compared with the baseline, total sleep time and sleep efficiency increased significantly in the 2lmg amitriptyline night, and WASO decreased significantly in the second recovery night. 3. Compared with the baseline, the absolute value(minutes) of stage 1 sleep decreased significantly in the amitriptyline, first and second recovery nights, and the relative value(%) of stage 1 sleep decreased significantly in the first recovery night. The absolute and relative value of stage 2 sleep increased significantly in the amitriptyline night. The relative value of slow wave sleep decreased significantly in the first recovery night. 4. Compared with the baseline, the absolute and relative value of REM sleep decreased significantly in the amitriptyline night, the relative value of REM sleep increased significantly in the first and second recovery nights, and REM latency shortened significantly in the first and second recovery nights. 5. Feeling of fatigue, depressed mood and sleepiness increased in the afternoon the day after amitriptyline administration. 6. 1) In the baseline, daytime sleepiness was positive correlation with feeling of fatigue and mood. 2) The day after amitriptyline administration, relative value of REM sleep was negative correlation with feeling of fatigue and sleepiness, daytime fatigue was positive corelation with mood and sleepiness, and daytime mood was positive correlation with sleepiness. 3) In the first recovery day, daytime fatigue was positive correlation with mood and sleepiness, and negative correlation with reaction time, daytime mood was positive correlation with sleepiness, and reaction time was negative correlation with sleepiness. 4) In the second recovery day, total sleep time was positive correlation with the relative value of REM sleep time, the relative value of stage 2 sleep was negative correlation with the relative value of slow wave sleep, the relative value of slow wave sleep was positive correlation with daytime fatigue and mood, daytime fatigue was positive correlation with mood and sleepiness, and negative correlation with reaction time, daytime mood was positive correlation with sleepiness, and reaction time was negative correlation with sleepiness.

觀光客의 時間槪念에 관한 고찰

현성곤 제주한라대학 1995 論文集 Vol.19 No.-

What we thirst for is the social welfare state which satisfies our basic desires sufficiently. In addition to the basic human-beings desires for living, we are eager to pursue a happy life after our living is balanced. The stabilized life leads us to another desire for a well-balanced living. Nowadays we face lots of strain and stress in our social life under the machine civilization and the various public nuisances. Thus we long for a variety of life such as lesures or recredtion to escape a dull and routine life. The purpose of this study is to understand the concept of time in tourist and discuss the necessity of the tour activity as the academic theme. But I cannot make the field survey, because of the limites of my ability and the constraints. Consequently, the national tourism plays a vital role in making and executing the social welfare policies. At present the sight-seeing activities have a trend to change to the pattern of active tourism and develops into the resort tourism and the tourism for the social welfare.

제주도내 관광 일본어 통역 안내원들의 직무 만족도에 관한 조사 연구

현성곤 제주한라대학 1993 論文集 Vol.17 No.-

1. Purpose of This Study In order to provide the foreign tourists with high quality service, the management must first take the tourist guide's needs and job satisfaction into consideration to fully understand them. The purposes of this study were to investigate the state of job satisfaction of Japanes tourist guide in Cheju, and to provide basic data to achieve higher satisfaction for them. 2. Summary of the survey results A sample of 65 Japanes tourist guides was selected to participate in this study. The data was collected from 3th to 9th January, 1994 by means of questionnaire. The data was analyzed by percent, mean, standard deviation, T-test, and Anova according to the purpose of this study. The result of this study was as follows ; First; As for the job satisfaction, it rated fairly high in achievement, and leadership, while average in wage, human realationship, promtion, and quality of work life. Second; The study of correlation between background variables (sex, age, career) and job satisfaction shows that job satisfaction has something to do with wage, achievement, quality of work life, but little to do with the guide's career.

장애 아동의 체육수업 개선 방안 탐색

김성곤 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

This study investigate the method of reforming the physical education classes for children with mental retardation. Four children with mental retardation and three parents were interviewed to investigate the method of reforming the physical education classes for children with disabilities. The data collection methods employed qualitative interviewing for the elementary school & middle school students with mental retardation and their parents. The data were analyzed by case record analysis and the trustworthiness of data was proved by member check, peer debriefing, and triangulation. Major finding can be summarized as the follow: 1) All students with mental retardation experienced the feelings of humiliation, frustration, embarrassment, and isolation in school education. 2) They were subjected to criticism and harassment by their peers. 3) All students and their parents preferred physical education to all the other subjects, because physical activity is the most important factor to the healthy-life. Therefore, all physical education teachers, special physical educators should be focused on health-related fitness and their abilities with mental retardation. 4) Intensive on-site in-service training should be made in order to increase cooperative attitudes among teachers and peers towards children with disability. 5) This study reiterates that collaboration through intensive on-site in-service and consultation assistance can be most effective in improving the quality of educational service to support inclusion for children with special need in physical education.

한국인 알코올 의존 환자에서 알코올 대사 효소 유전자형 빈도의 남녀 차이

김성곤,김철민,이덕기,황인복,이현숙,김성연,전은숙,송영상,박제민,최병무,김명정 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2

Objectives : There are a number of preceding epidemiological studies reporting gender differences in the genetic etiology of alcohol dependence. The author investigated gender difference in the frequencies of ADH2 and ALDH2 genoypes between the patients with alcohol dependence and normal control. Methods : The subjects were 141 alcohol dependent patients (104 males, 37 females) and 138 normal control (79 males, 59 females). The frequencies of 1/1 and 1/2+2/2 (2+ afterward) genotypes for ADH2 and ALDH2 were investigated in male and female between alcohol dependence and normal control group. DNA was extracted from WBC in peripheral venous blood and PCR-RFLP method was used out for genotyping. Results : First, the frequency of ADH2 1/1 genotype was significantly higher in alcohol dependent patients than normal control in both genders. Second, while there was no gender difference in the frequency of ADH2 1/1 genotype in normal controls, in the patient group however, the frequency was significantly higher in females than males. Third, in male subjects with alcohol dependence, the frequency of ALDH2 1/1 genotype was significantly higher than in male normal control subjects. On the other hand, in female subjects with alcohol dependence, the frequency of ALDH2 2+ genotype was significantly higher than in female normal control subjects. Conclusion : These results suggest that while the risk of alcohol dependence is predominantly affected by ALDH2 1/1 geno-type in male, the female ADH2 1/1 genotype is mainly associated with the risk of alcohol dependence. This means that there are gender differences in the genetic etiology of alcohol dependence.

창업보육사업 입주기업 선정기준의 개선방안

이성근,김상곤 영남대학교 지역발전연구소 2003 영남지역발전연구 Vol.31 No.-

본 연구는 고용창출 및 경제 활성화를 목표로 정부차원에서 추진하고 있는 창업보육사업의 입주기업 선정기준에 대하여 문제점을 분석하고 이를 개선하는 대안적 평가기준을 제시하기 위하여 진행되었다. 이를 위하여 창업보육사업의 배경과 발전과정을 검토하고, 기업평가에서 활용되는 기준에 대한 이론과 해외 창업보육사업의 사례를 바탕으로 하여 분석변수를 선정하였다. 그리고 15개 중소기업청 지원 창업보육센터(BI), 대구경북지역에 소재한 3개 테크노파크(TP) 및 과학기술원 등 총 19개 기관을 연구대상으로 선정하였다. 선정기준의 분석결과 ①기술성 및 사업성과 같은 일부기준으로의 편중, ②기관이나 지역에 따른 무차별적인 운용, ③창업자 자질, 기술적 및 사업적 타당성, 경쟁력 정도 등 비정량화 지수의 남용, ④사회적 책임성을 판단하는 기준의 미활용 등이 문제점으로 제시되었다. 따라서 ①고용창출, 보육센터의 활용성 및 적합성, 해당산업의 전후방 파급효과 등 다양한 기준의 활용, ②지역기반산업과의 밀착도, 지역업체와의 연계성 등 지역밀착형 지수(regional suitability index)의 활용, ③정량적 지수(quantitative index)의 활용, ④입주기업의 사회적 책임을 판단하기 위한 기준의 개발 등을 창업보육사업 입주기업 선정기준의 개선방안으로 제시하였다.