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박진섭,김용대,유영갑 충북대학교 컴퓨터정보통신 연구소 2005 컴퓨터정보통신연구 Vol.13 No.2
본 논문에서는 128 비트 ARIA 암호 알고리듬을 소형화시킨 32 비트 하드웨어 구조를 제안하고 있다. 최근 휴대폰을 이용한 금융결제나, 노트북에서 무선 인터넷을 이용한 VPN 접속과 같이 휴대형 장치에서도 보안 서비스가 이루어지고 있다. 휴대형 장치는 제한된 크기와 전력에서 동작하기 때문에 보안서비스를 추가하기위해서는 저전력, 소형화 설계가 요구된다. 본 논문의 ARIA 하드웨어 구조는 이러한 제한된 환경에 적용 가능한 저전력, 소형 구조이다. 제안된 ARIA는 32 비트 구조이다. 소형화를 위해서 4개의 S-box와 32비트 확산 함수를 구현하였다. 또한 복호화할 때 라운드 키 생성에 필요한 확산 함수의 사용하지 않도록 데이터 패스를 수정하였다. 본 논문의 32비트 ARIA는 초기값 생성을 위해 53 클록 사이클이 필요하다. 암/복호화에는 236 클럭 사이클이 요구된다. 32비트 ARIA는 0.35 ㎛ CMOS 공정으로 13,960.5 EG로 구성되었다. This paper presents a 32bit hardware architecture for the ARIA cryptographic algorithm. Recently security service has extended on portable devices such as cellular phones and VPN with wireless Internet at laptops. The mobile units have a limited power with small size demanding a low-power and compact design. The hardware design in this paper is a low-power and compact version of ARIA for the limited mobile environment. The proposed ARIA is based on 32-bit architecture.
최낙진,심창현,송갑득,주병수,이윤수,이상문,이덕동,허증수 한국센서학회 2002 센서학회지 Vol.11 No.5
단일 기판위에 온도측정용 Pt 박막과 Pt 히터 그리고 가스 감지를 위하여 순수한 SnO_2 박막과 Pt가 첨가된 SnO_2박막을 설계하고 제작하였다. 제작된 소자는 실내환경가스인 이산화탄소, 프로판 그리고 부탄의 분류에 응용되었다. 동작 온도를 가변하기 위하여 히터의 입력 전압을 사다리꼴로 인가하면서 SnO_2 감지막의 반응특성과 실내환경가스들에 대한 분류여부를 조사하였다. 감지막 반응특성곡선에서 여러 변수들을 추출한 후 주성분분석(principal component analysis : PCA)을 통하여 가스 분류 특성을 검증하였다. Two SnO_2 based sensing films(pure SnO_2 and SnO_2/Pt) and a Pt thin film for temperature sensor on an alumina substrate were designed and fabricated for classifying the indoor environmental gases. By controlling the heating power in the shape of trapezoid, unique four sensing response curves created from both SnO_2 film and SnO_2/Pt film. Then, various parameters were extracted from sensing response curves and carried out principal component analysis(PCA). The results confirm that a sensor array with the proposed operating mode was extremely effective in classifying indoor environmental gases such as CO_2, C_3H_8, C_4H_10.
최상진,조옥성,백우석,이갑철,고봉수 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2
The purpose of this study was to investigate the mental toughness of Taekwondo players and to suggest way of performance enhancement using Loehr's Psychological Performance Inventory. Subjects were 188 Taekwondo elite players. Each factor's mean and standard deviation of Mental Toughness were calculated, and ANOVA were used for statistical analyses of the difference of mean. The results are as follow;: 1. On the level of self-confidence, it shows that the man players is higher than the woman players (school career F=5.846, P<.05: sex distinction F=8.876, P<.01). 2. On the level of attention control, it shows that the woman players is higher than the man players (school career F=4.483, P<.05: sex distinction F=9.814, P<.01). 3. On the level of visual and imagery control, it shows that the man players is higher than the woman players (school career F=7.790, P<.01: sex distinction F=5.000. P<.05). 4. On the level of arousal control, motivation, positive energy and attitude control, it was not significant difference according to the sexual and school career.
스포츠 마케팅에서 서비스 포지셔닝이 스포츠 제품 포지셔닝 변화에 미치는 영향
오갑진,김성문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4
Purpose of study was to exam influence of service positioning to sports product's positioning in sports marketing. T-test and x² analysis were used. Cronbach's a method was used to identify reliability of questionaries and α represented .7678. SAS program was used and P<.05. Results of study followed next. First. Product positioning has potential relation with demographics factors such as regional and ages. Second, Services is more effective factor to decide products positioning than price Third, Positioning change could be possible through service pattern provided - touchable, non touchable, or touchable and non-touchable. Fourth, Positioning change was possible based on service experience.
Styryl diphenyl phosphine oxide의 가수분해 반응메카니즘에 관한 연구
신갑철,김학진,이광일 慶尙大學校 1985 論文集 Vol.24 No.1
The rate constants for the hydrolysis of p-substituted styryl diphenyl phosphine oxide(p-H, p-Cl, p-CH_3, p-OCH_3) were determined at various pH and rate equations which can be applied over wide pH range were obtained; below pH 5.0 the rate of hydrolysis of p-substituted styryl diphenyl phosphineoxide were catalyzed by hydronium ion and above pH 8.0, the specific base catalysis were observed. However, in the range of pH 5.0-8.0 the rate of hydrolysis were independent on the pH change andno general base catalysis were observed at pH 4.75. The substituent effects on the hydrolysis of styryl diphenyl phosphine oxide derivatives were also studied. On the basis of these results, the hydrolysis mechanism of p-substituted styryl diphenyl phosphine oxide were proposed.
김성순,김갑진,라광준 중앙대학교 기술과학연구소 1996 기술과학연구소 논문집 Vol.26 No.-
본 연구는 수도권 폐기물 매립지의 현황을 파악하고, 이를 토대로 우리실정에 적합한 매립지의 적정관리 방안을 제시하고자 실시하였다. 그 중에서 쓰레기 매립지 침출수의 수질 자료를 가지고 이를 예측하고, 장래 그 지역의 침출수 처리방안의 기초적 자료를 만들고자 한다. 도시생활 폐기물 매립지의 침출수에서 주된 BOD? 및 COD?은 매립 경과시간에 따라 오염 농도가 log curve와 같은 상태로 변화됨을 알았다. SS농도는 매립심도가 얕은 지역이거나, 비가 많이 내리는 우기에 영향을 많이 받으므로 매립초기나 우기시에만 적정처리를 하면 될 것으로 사료된다. T-N이나 NH?-N는 매립일이 경과할수록 증가하지만, BOD?는 감소추세로 나타났다. 매립 경과일수에 따라 중금속의 농도는 증가하였고, 그 수치들은 환경기준을 초과하므로 이에 대한 적정처리가 요구된다. A leachate treatment and disposal system consists of properly designed and integrated treatment process, and an effluent disposal arrangement to discharge treated leachate to the environment without endangering public health and safety. In this study are analysed the characteristics of the leachate and also are discussed the experience to solve the problem of the leachate treatment in landfill Site. The results are summarized as followed ; The correlation of BOD? and COD? Concentration and running time of Solid Waste Landfill showed a style of the logarithmic curve. Because the SS Concentration is under the influence of shallow landfill or heavy raining season, it is thorough that some appropriate action is required during a rainy season or right after the landfill. The value of T-N or NH?-N are increased by the time after the landfill, in the other hand the value of BOD? is decreased by the same condition. Because as the time after the landfill runs, the concentration of heavy metal is increased and the values of heavy metal exceeds a environmental limit request that the appropriate action be done.
殷載淳,鄭甲基,梁在憲,權鎭,吳贊鎬,全焄 又石大學校 1995 論文集 Vol.17 No.-
The purpose of this research was to investigate effect of water-soluble protein of Trichosanthes kirillowii(TKP) on the proliferation of human tumor cells. TKP inhibited the proliferation of HeLa cells and KHOS-NP cells. The inhibitory activity of doxorubicin on HeLa cells and its of mitomycin C on KHOS-NP cells were increased by the combination of TKP. TKP did not affect on the proliferation of Balb/c 3T3 cells, but inhibited the proliferation of mouse spleen cells and human lymphocyte at 1 ㎍/ml. These results suggest that TKP bas the cytotoxicity on HeLa and KHOS-NP cells, and increase the cytotoxicity of doxorubicin or mitomycin C.
임상복,김용배,이용진,리갑수,김화성,황규윤,장봉기,이성수,안규동,이병국 순천향대학교 산업의학연구소 1998 순천향산업의학 Vol.4 No.1
In order to investigate the relationship between blood lead with other lead exposure indices and blood pressure in occupationally lead exposed male workers, 629 workers(515 lead exposed workers and 114 non lead exposed workers) in a storage battery factory were studied. Blood lead(PbB), zinc protoporphyrin(ZPP) and urinary δ-aminolevulinic acid(ALAU) were selected as an index of lead exposure. Height and weight were also meaured with calibrated automatic height-weight machine to produce fatness index directly. Personal information on smoking and drinking history were also collected. Blood pressure was mearured by trained nurses with automatic sphingomanometer. All workers took at least 30 minute rest before their measurement of blood pressure. The results obtained were as follows: 1. The prevalence rate of hypertension of lead exposed and non-exposed workers were 3.5% in both group without any difference. 2. There were no differences of systolic and diastolic pressure between groups divided by lead exposure, smoking habit, drinking habit. but the increase of age group made the difference of diastolic pressure, and only differenct of systolic pressure observed in age group of less than 20 and that of more than 40. 3. In pearson's correlation analysis, PbB was correlated with systolic pressure significantly, but not with diastolic pressure. PbB was also correlated with pressure difference(systolic pressure-diastolic pressure). 4. There were no significant increase of systolic, diastolic pressure and pressure difference by the increase of PbB and ZPP grouping. 5. Stepwise multiple regression analysis using systolic pressure as dependent variable and PbB, ZPP, ALAU, age, work duration, smoking habit, drinking habit and fatness (weight*0.9/height-100) as independent variables, revealed that PbB, age, drinking habit and fatness in order were significantly contributed to the dependent variable. 6. Stepwise multiple regression analysis using diastolic pressure as dependent variable and PbB, ZPP, ALAU, age, work duration, smoking habit, drinking habit and fatness (weight*0.9/height-100) as independent variables, revealed that ALAU, age and fatness in order were significantly contributed to the dependent variable. 7. Stepwise multiple regression analysis using pressure difference as dependent variable and PbB, ZPP, ALAU, age, work duration, smoking habit, drinking habit and fatness(weight*0.9/height-100) as independent variables, revealed that PbB, age and fatness in order were significantly contributed to the dependent variable. 8. Logistic analysis of hypertensive conditions with categorized blood lead and other selected categorized independent variables indicated that only age(40> and 40≤) and fatness(1.0> and 1.0≤) were significantly contributed to dependent variable with 95% significant odd ratio confidence interval. With above results, lead exposure in terms of blood lead seemed to be minimally contributed to the raise of blood pressure, and the effect of blood lead was found to be more prominent on the pressure difference than the systolic and diastolic pressure themselves.
모 축전지 회사 근로자들의 연폭로 지표에 대한 경시적 관찰
강명식,김용배,이용진,리갑수,김화성,황규윤,장봉기,이성수,안규동,이병국 순천향대학교 산업의학연구소 1998 순천향산업의학 Vol.4 No.1
Lead poisoning is still prevalent and one of important occupational disease in Korea. To prevent undue high lead burden and maintain good health condition of lead workers in lead using industries, periodic health examination and regular biological monitoring of lead workers are often required in addition to the fundamental improvement of their working condition. To evaluate the effect of comprehensive occupational health program with regular biological monitoring on the level of lead exposure of lead workers in lead using industries, 11 year database from 1983 to 1994 of one storage battery factory was reviewed. From 1983 to end of 1986 only periodic health examination was provided to the lead workers, but from 1987 comprehensive occupational health program with regular biological monitoring was provided to maintain better health condition of lead workers. Selected study variables for lead exposure were blood lead(PbB), zinc protoporphyrin in blood(ZPP), δ-aminolevulinic acid in urine(ALAU), hemoglobin(Hb), hematocrit(HCT). Information on sex, age and work duration was also reviewed. 5 years data from 1983 to 1987 and 3 years data from 1990, 1993 and 1994 were available for all lead exposure indices except ALAU which has only 5 years data from 1983 to 1997. The results of 11 years longitudinal observation of lead indices are all follows: 1. The mean value of ZPP of lead workers in 1983 was 148.7±73.1 ㎍/㎗(Male: 145.5±72.3, Female: 168.1±79.1), whereas that of ZPP of lead workers in 1994 was decreased to 64.3±32.7 ㎍/㎗(Male: 60.2±28.8, Female: 95.2±43.4). 2. The mean value of PbB of lead workers in 1983 was 56.4±18.8 ㎍/㎗(Male: 55.59±19.1, Female: 59.6±19.1), whereas that of PbB of lead workers in 1994 was dcreased to 35.4±11.9 ㎍/㎗(Male: 35.7±12.0, Female: 32.8±10.8). 3. The mean value of Hb of lead workers in 1983 was 14.1±1.4 g/㎗(Male: 14.4±1.1, Female: 11.7±0.8), whereas that of Hb of lead workers in 1994 was increased to 15.6±1.5 g/㎗(Male: 15.9±1.2, Female: 12.9±1.1). 4. Blood lead is most highly correlated with ZPP(r=0.522, male:0.54 and female:0.50) and also correlated with ALAU and work duration also. 5. The simple regression analysis of PbB and ZPP showed different coefficient of regression by the measurement year, but there was no difference of coefficient of regression between sex. The slope of equation of pooled data for 1983-1986 without comprehensive occupational health program was 2.16 and differed from that of pooled data for 1987-1994(1.25). This difference suggests that the unit effect of blood lead on ZPP was relatively smaller in later period of comprehensive occupational health program than carly period without comprehensive program. The slope change in the analysis of linear regression of PbB on ZPP in lead workers can be used to evaluate the possible effect of health intervention to prevent undue high lead absorption in lead using industries. 6. 11 years occupational health service in this storage battery factory brought out considerable improvement of health status of lead workers in terms of decrease of PbB and ZPP and increase of Hb and the improvement was more remarkable after the introduction of comprehensive occupational health program.
김성순,문교영,김갑진 중앙대학교 기술과학연구소 1998 기술과학연구소 논문집 Vol.28 No.-
본 연구는 상수도 공급의 합리적 방안 연구의 일환으로서 수질개선과 효율적인 공급관리 체계확립을 연구하였다. 먼저 상수도 체계도를 각각 단계별로 분류하였으며, 정수장의 수처리 공정에서 발생하는 근원적인 문제점과 실태를 조사ㆍ분석하여 개선책과 대안들을 제시하고자 하였다. 또한 상수도 관리공정의 자동화 및 계측제어 system 방식의 도입을 통하여 비효율적인 기존의 인위적 생산방식을 탈피하고, 제한된 용수자원을 최대한 호라용하여 능률적인 상수원 공급체계를 확립하고자 하였다. Water Supply in Water Treatment Plants has been accomplished at a great extent for last decade in Anyang City. Some problems to be solved were disclosed in the survey which dealt with operation and the installation procedure. Optimum Auto-Control System is a kind of preventive maintenance equipment which monitors continuously the operating condition of equipment and alarms to the operator in case of abnormal condition to prevent equipment from transition to big trouble. This system monitoring the efficiency of water treatment plants. By suggesting standard model of Optimizing Control System after completion, it will be possible to adapt this model to the renewaland/or new construction of other Water Supply System. Also it will contribute to the effective equipment operation by maintenancing cost cut-down and remote monitoring and control.