종이상자포장기의 개발에 관한 연구

권경우,권병철,류봉조,명태식,박찬호,이광원 한밭대학교 산업과학기술연구소 1994 논문집 Vol.2 No.-

The paper describes the development of a new automatic wrapping machine using paper films as it has not been used so far. The most of the automatic wrapping machine have used the vinyl film causing environmental pollution, the paper films, however, have a weak point in the aspect of high temperature adhesion. Therefore, the mechanism of the existing wrapping machine should be altered to prevent it from curling effect through the technical know-how. A new method and technology reducing the curling effect in the automnatic wrapping machine are demonstrated by using developed blower. Thus it is exqection and will decrease environmental pollution.

CAD를 이용한 양수장 및 배수장설비 설계의 표준화

권병철,권경우,김기길,명태식,박찬호,박귀용 한밭대학교 산업과학기술연구소 1995 논문집 Vol.3 No.-

This paper is to be illustrated automation in the design of Pumping Station and Draining Station. Program for design automation applying Auto LISP, DCL can be used to design and draw simultaneously. The study result are as follows. 1. Optimal design has been introduced and precise design has been possible using CAD. 2. Dialog design is possible with introduction the concept of design automation, and design cost can be reduced greatly.

QMF를 이용한 우리말 숫자음 인식에 관한 연구

남호정,양성일,백인찬,권영헌,이건상 漢陽大學校 工學技術硏究所 1996 工學技術論文集 Vol.5 No.1

In this study, QMF is used for recognition of Korean digits from /Young/(zero) to /Geo/(nine). The frequency band is divided into 8 bands and 16 bands. Each digit was pronounced repeatly 15 times by one man speaker so that 150 sample digits were used to be divided into 8 bands and 16 bands. The recognition of Korean digits was proposed and carried out to use the energy in each band. The recognition was done and compared according to the number of candidate patterns to be recognized. Experiments resulted in remarkably good recognition rate when the number of candidate patterns are above a threshold value.

Effect of two different calcium hydroxide paste removal techniques on apical leakage : an electrochemical study

Park, Chan-Je,Jeon, Kyung-A,Kwon, Ho-Beom 大韓齒科保存學會 2006 Restorative Dentistry & Endodontics Vol.31 No.3

본 연구의 목적은 근관내 약제로 사용되는 수산화칼슘의 제거방법이 근관충전 후 치근단 미세누출에 미치는 영향을 알아보기 위함이다. 70개의 발거된 단근치를 엔진구동형 ProFile로 근관형성한 후 수용성 수산화칼슘 제제를 1주일간 적용하고 두 군으로 나누어 각기 다른 방법으로 제거하였다. A군은 NaOCI로 근관세정만을 시행하였으며, B군은 근관형성 시 사용된 file보다 한 단계 큰 크기의 ProFile을 사용하여 근관을 재형성한 후 NaOCI로 세척하였다. 근관충전 후 전기화학적 방법으로 24일 동안 치근단 누출을 측정, 비교하였다. 본 연구의 결과 수산화 칼슘 제거를 위한 두가지 방법은 근관충전후 치근단 미세누출에 있어서 차이가 없음을 알 수 있었다. This study evaluated the effect of two different calcium hydroxide (Ca(OH)_(2)) paste removal techniques on the apical leakage of canals obturated with gutta percha cones and sealer after removing a Ca(OH)_(2) dressing using an electrochemical method. Seventy extracted single-rooted teeth were instrumented on with Profile rotary files under NaOCI irrigation. Fifty-eight canals were filled with calcium hydroxide paste, which was then removed using one of the following two techniques. In group A, calcium hydroxide was removed using only NaOCI irrigation, and in group B, the canals were re-prepared with a Profile rotary files-one size larger than the previous instrument and were irrigated with NaOCI. In both groups, the root surfaces were coated twice with nail varnish from CEJ to an area 4㎜ away from the apex after canal obturation. Apical leakage was measured using an electrochemical method for 24 days. All the specimens showed leakddffqage that increased markedly in the first three days. There was no significant difference between the two groups (p > 0.05). The effect of two calcium hydroxide paste removal techniques on the apical leakage was not different during a short period.

투포환동작의 운동학적 분석

박찬희,권민호,백승국,김용대 東亞大學校附設스포츠科學硏究所 1996 스포츠科學硏究論文集 Vol.14 No.-

By Making two Univ. shot put athletes, do the shot put motion and after picturing them, through the three dimensional motion analysis, analyzing and comparing the velocity of release, the angle of release, the height of release, and COG track of shot put motion and COG velocity of shot put motion, this study has conclusions like below. 1. At the release point of shot put, athlete KJ's speed was put out was 10.0275 m/sec, and athlete KS' speed was put out was 9.9305 m/sec. The result showed us that athlete KJ's and KS' speed was slower than the previous domestic study. 2. At the release point of shot put, the vertical distance between the center of shot put and ground was 2.11m. And this height is very higher than the previous domestic study and lower than the foreign athletes' height, and it is optimistic phenomenon. 3. At the release point of shot put, the vertical distance between the center of shot put and ground was 2.11m. And this height is very higher than the previous domestic study and lower than the foreign athletes' height, and then it is optimistic phenomenon. 4. At the height of center of gravity, KJ's height was higher than KS', and KS' using degree of circle and concentration degree of shot put release direction were better than KJ's 5. At the moving velocity of center of gravity, KJ showed more increasing acceleration than KS. Through out the shot put, because of KS' much velocity refraction than KJ's, there was a loss.

정신분열병 환자의 가족부담 척도 개발에 대한 예비연구

김철권,조진석,서지민,김용관,김호찬,김현수,김상수,제영묘 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.3

연구목적 : 정신분열병 환자의 가족이 느끼는 부담을 측정하기 위한 가족부담 척도를 개발하기 위함이다. 방 법 : 200명의 정신분열병 환자 가족과의 비구조적 면담과 외국 부담척도 고찰을 통하여 94문항을 수집하였고 그 다음에 전문가들과 가족들이 문항 및 영역을 분류하고 통합하여 최종적으로 36문항을 선정하였다. 그리고 정신분열병 환자의 가족 135명, 불안장애 환자의 가족 22명, 기분부전장애 및 신체화 장애 환자의 가족 26명, 치매 환자의 가족 49명을 대상으로 신뢰도와 타당도를 검증하였다. 결 과 : 자료분석 결과 검사-재검사 신뢰도, 내적 일치도, 감별타당도 모두 높게 나타났으며, 요인분석을 통해 다섯 가지 구성요인이 추출되었다. 결 론 : 본 가족부담 척도는 정신분열병을 포함한 만성 정신질환을 앓고 있는 환자의 호전과 가족의 부담을 덜어주기 위한 다양한 프로그램의 효과를 검증하는데 유용하게 사용되어질 수 있을 것이다. Objectives : This preliminary study was carried out to develop the Family Burden Scale(FBS) of the schizophrenics. Methods : Ninety-four items were collected by interviewing in a free unstructured format with one relative of each 200 schizophrenic patients and reviewing foreign FBS's. Several professionals and relatives were asked to group and integrate them into several categories. Finally 36 burden items were chosen to constitute a FBS. The FBS was administered to the relatives of 135 schizophrenic, 22 anxiety disorder, 26 dysthymic disorder and somatization disorder, and 49 dementia patients for examining the reliability and validity. Results : The FBS showed high test-retest reliability, internal consistency, and discriminant validity. The results of the factor analysis revealed five-factor solution. Conclusion : The FBS can be used to evaluate the effectiveness of various programs intended not only to reduce decompensation among schizophrenics, but also to alleviate family burden.

만성 견비통에 대한 동씨침 치료의 무작위 대조군의 임상 연구

김찬영,권나현,신예지,남동우,김건형,김종인,최도영,이윤호,이재동 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2007 東西醫學硏究所 論文集 Vol.2007 No.-

Objectives : To observe the effect of acupuncture treatment in chronic shoulder pain patients. Methods : 36 voluntary patients were randomly assigned to an acupuncture treatment group(E GrouP, n=18) and a control group(C GrouP, n=18). The E Group patients received acupuncture treatment on LI_(15), TE_(14), GB_(21) and Master Dong's acupuncture points, Shin-gwan and Gyun-joong, twice a week for four weeks. The C Group patients received no treatment. All patients in both groups were instructed to practise self exercise in their daily lives. Evaluations were made at baseline and after four weeks of study. The Constant Shoulder Assessment(CSA), Shoulder Pain and Disability Index(SPADI) and the patient's subjective pain was measured by Visual Analogue Scale(VAS). The obtained data was analyzed. Results '. The E Group showed significant(p<0.05) improvement in CSA, SPADI and VAS after four weeks of treatment. The C Group showed significant(p<0.05) improvement in CSA, but the change of SPADI and VAS was insignificant(P>0.05). CSA and SPADI of E Group significantly(p<0.05) improved compared to the C GrouP, but the difference of VAS change in the two groups was insignificant(p>0.05). Conclusions : Four weeks of acupuncture treatment significantly improved CSA, SPADI and VAS. The improvement of CSA and SPADI was significant(p<0.05) compared to untreated patients.

정신분열병의 급성기 및 관해기에서의 신경인지 결손에 관한 연구

김호찬,김철권,박내권,최병무 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.5

연구목적 : 본 연구는 정신분열병 환자에게서 보이는 다양한 신경인지 결손이 병의 증상 때문인지 아니면 질병 자체의 취약성 때문인지를 알아보기 위한 것이다. 방 법 : 42명의 정신분열병 환자를 대상으로 정신증적 증상이 심한 급성기와 증상이 호전된 관해기에 고난도 지속수행검사(Continuous Performance Test)를 이용한 지속적 주의력, 정보 감지능력검사(Span apprehension Task)를 이용한 초기 시각 정보처리능력, 위스콘신 카드분류검사(Wisconsin Card Sorting Test)를 이용한 통합능력, 숫자 주의력(Digit Span)을 이용한 주의집중력, 그리고 레이 청각 언어성 학습검사(Rey Auitory Verbal Learning Test)를 이용한 언어성 기억 및 학습 등을 반복 측정하여 그 결과를 정상 대조군과 비교하였다. 정상 대조군은 환자군과 성별, 나이, 학력 등에 유의한 차이가 없고 정신과적 병력이 없는 일반인 35명으로 하였다. 결 과 : 지속적 주의력, 초기 시각 정보처리능력, 통합능력, 언어성 기억 및 학습 등에서 정신분열병 환자군은 정상 대조군에 비하여 급성기와 관해기 모두에서 대부분 유의한 결손을 보였다. 그러나 주의집중력에서는 급성기때 환자군은 정상 대조군에 비하여 거꾸로 따라 외우기에서는 유의한 수행저하를 보였지만 관해기때는 두군간에 바로 따라 외우기와 거꾸로 따라 외우기 모두에서 유의한 차이를 보이지 않았다. 지속적 주의력, 초기 시각 정보처리능력, 통합능력, 언어성 기억 및 학습에서 정신분열병 환자군은 급성기와 관해기 간에 모두 유의한 변화를 보이지 않았다. 그러나 주의 집중력에서 환자군은 급성기에 비하여 관해기때 바로 따라 외우기와 거꾸로 따라 외우기 모두 유의한 향상을 보였다. 결 론 : 난이도가 높은 과제에 대한 주의력 또는 정보처리 능력은 안정적 취약지표일 가능성이 높다. 위스콘신 카드분류검사를 통해 알 수 있는 통합능력에서의 결손은 증상 또는 삽화지표가 아닐 가능성이 높지만, 그렇다고 단정적으로 안정적 취약지표라고 결론짓기는 어렵다. 숫자 주의력의 경우에는 바로 따라 외우기와 거꾸로 따라 외우기의 작용기전이 다를 가능성이 있으며, 바로 따라 외우기는 삽화지표일 가능성이 높은 반면 거꾸로 따라 외우기는 증상의 영향을 부분적으로 받는 중재적 취약지표일 가능성이 높다. 언어성 기억 및 학습 결손에서는 일부 형태의 기억이 증상과는 무관한 안정적 취약지표일 가능성이 높다. Objectives : The purpose of this study is to examine whether the neurocognitive deficits of schizophrenia may be associated with certain features of symptomatology or a stable vulnerability of disease itself. Method : The 42 schizophrenic patients and 35 matched normal controls with sex, age, and education level were examined for their sustained attention, sensory register, executive function, concentration and attention, and verbal memory and learning in the acute and remitted stages of schizophrenia using Degraded Stimulus Continuous Performance Test, Span Apprehension Task, Wisconsin Card Sorting Test, Digit Span, and Rey Auditory Verbal Learning Test, respectively. Results : The schizophrenic patients showed significant deficits in the sustained attention, sensory register, executive function, and verbal memory and learning compared with the normal controls in both acute and remitted stages of schizophrenia. Regarding the concentration and attention, the schizophrenic patients showed significant deficits in the backward digit span compared with the normal controls during acute stages, bet there was no difference between two groups in the forward and backward digit span during remitted stages. No difference was evident in the sustained attention, sensory register, executive function, and verbal memory and learning between acute and remitted stages of schizophrenia. But the forward and backward digit span of schizophrenic patients showed significant improvement in the remitted stages compared with acute stages. Conclusions : The sustained attention and sensory register deficit in the visual information processing associated with schizophrenia, detected by high-processing-load version of the Degraded Stimulus Continuous Performance Test and span Apprehension Task, are highly possible to be stable vulnerability indicators. Executive functioning deficit in the schizophrenic patients detected by Wisconsin Card Sorting Test is not likely to be dependent on symptoms, so it is difficult to conclude that it is a stable vulnerability indicators of schizophrenia. In the digit span task, the forward digit span is more likely to be a episodic indicator but the backward digit span is likely to be a mediating vulnerability indicator. And the forward and backward digit span tasks seem to be tap different cognitive abilities that are differentially associated with the diathesis for schizophrenia. Some forms of the verbal memory and learning deficits associated with schizophrenia appear to be a stable vulnerability indicators.

우리나라 논 관개용 지하수 수질 특성

김진호,조광래,임수정,이경자,경기천,엄미정,김희권,김찬용,이영한,이신찬,윤순강 한국환경농학회 2003 한국환경농학회지 Vol.22 No.4

This study was carried out to evaluate the status of the groundwater quality for paddy fields irrigation in Korea. Water samples were collected at 130 sites throughout the country. Samples were collected at three seasons-April, July and October-in 2000. According to our survey, the groundwater was found to be suitable for irrigation purpose. Average EC was shown 0.286 dS/m. Nitrate-nitrogen and Cl^(-) concentration was 5.6 ㎎/L, 32.95 ㎎/L which satisfied the Korean Standards for Irrigation Water. Nitrate-nitrogen concentration in each province was shown as following orders: Jeju (11.17 ㎎/L) > Chungnam (8.16 ㎎/L) > Gyeongbuk (6.64 ㎎/L) > Gyounggi (5.91 ㎎/L) > Chungnam (4.95 ㎎/L) > Gyeongnam (3.91 mgk) > Jeonbuk (3.50 ㎎/L) > Jeonnam (3.27 ㎎/L) > Gangwon (2.91 ㎎/L). The concentration by sampling seasons were October (6.62 ㎎/L) > July (5.88 mg&) > April (4.78㎎/L). As the soil of Jeju Province is usually derived from volcanic ash soils mainly used for upland drops, it may influence the nitrate-nitrogen concentration of groundwater. The amount of rainfall also influence the water quality. But the COD_(Cr), were shown April (3.17㎎/L) > July (2.91 ㎎/L) > October (2.40 ㎎/L), it is highly related in the basal dose of organic matter fertilizers. This study demonstrated that groundwater quality was suitable for irrigation, but continuous monitoring is recommended for agricultural policy and developing OECD agricultural environment indicators.

구름베어링 설계용 Expert System 개발에 관한 연구

김호룡,권순천 연세대학교 산업기술연구소 1990 논문집 Vol.22 No.2

In the study, an expert system for the design of rolling bearings has been developed by using GURU which is expert system building tool and by constructing knowledge base which consist of rules and facts. The developed system is composed of three parts : the first one is the bearing selection part that recommands the correct combination of ball and roller bearing to support a shaft for a given set of operationg conditions, as initial stage of bearing design. After requesting the minimum amout of input data from the engineer, the second part calculates the parameters and compares with data-base which constains the specifications of bearing. If the results do not satisfy the selection criterion, the search process is repeated. When the malfunction occurs, the last part displays the causes of bearing failure and the countermeasures for correction. As the result of applying this algorithm to the several real design examples, the proper bearing combination and the bearing dimensions are obtained. Throuth inserting the expertise into the knowledge base, the conceptual design process which could not easily be manipulated by conventional CAD approach could be implemented in computer.