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      • 安東을 中心한 慶北地域의 夏節期 氣溫特性(Ⅰ)

        손련규,윤지홍,권성덕,김순철,권태형 安東大學校 安東地域社會開發硏究所 1991 安東開發硏究 Vol.2 No.1

        The Andong region that includes Youngju, Bonghwa, Yechon, and Uisung is located in a basin bounded in the northeast and northwest by the Mt. Ranges of Taeback and Soback, and because of the closeness to Andong and Imha dams it has come to experience a large variation in climate. Due to an excessive amount of evaporation of moistures from open surfaces of these dams in the region it has not been possible to avoid heavy fogs, and because of the cooling effect accompanying the evaporation it has come to experience greater variation in temperature. The summer climate of the region may be characterized as follows : 1) The temperatures fall in the eastern coastal region that includes Uljin, Youngduk, and Pohang during the summer when there is a low pressure developed m the southern part of Tonghae following the pattern of high pressure in the north and low pressure in the south induced by the northeastern air current, but the temperatures fall frequently in the interior region that includes Andong, Yougju, Bonghwa, Yechon, Uisung, Sunsan, Kimchon, and Taegu when there is a low pressure region developed there following the pattern of high pressure in the east and low pressure in the west. 2) The temperatures fall equally in both the coastal and interior regions when there is a cold front, spread across east-west line, moving rapidly southward from central region due to a high pressure in the north and a low pressure in the south, and in the interior region the temperatures fall quite rapidly-this trend continues for the next two to three days. 3) The highest temperature during the summer in Kyungbuk region is due to wind effect that may have been resulted from the Foehn-phenomena with the Taeback Mt. Range as boundry. 4) The temperature rises when daily variation is of the pattern of A or B, but the temperature falls when the daily variation is of the pattern C or D. The temperatures fall in the western coast and rise in the interior region when the high pressure region forms a tounge pattern with the axis along the eastern coast. When the axis of the high pressure region is along the western coast, the temperatures rise in both regions, and the amount of rise is comparable, thus creating the pattern E. These five patterns of variation may be considered as the characteristics of the summer weather in the Kyungbuk region.

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      • KCI등재
      • 실내수영장 수질의 실태에 관한 연구

        조연철 啓明大學校 生活科學硏究所 1997 科學論集 Vol.23 No.-

        This study is aimed to analyze investigations on the environmental conditions of indoor swimming pool facilities and to research the effects of environmental pollutants on the health. Among the sites of swimming pool in K city area, three sites were selected in this study respectively. The data measured are swimming pool water pollution status in the consumption of KMnO4, residual chlorine, pH and general bacterium. These examined data were compared with seasons, time from standard levels. The conclusions derived from the results obtained are as follows : In case of the consumption in KMnO4, the major index of water pollution, showed that the pollution level was not exceed 12mg/l recommanded levels. It was not a significant difference in winter and summer, compared with time. Summer's values of consumption in KMNO_4 were significantly higher than those of consumption in winter. Values of residual chlorine in winter were 0.20mg/l or so. They were lowered gradually with time. They showed 3 times higher than those of consumption in summer at 10-2 p.m. Values in winter seemed similarly different in summer. General bacterium in summer was significantly higher than that in winter. Values in winter and summer were increased with time. General bacterium was not a significant difference between winter and summer. From the above results, the government is requested to prepare an appropriate priate administrative measure for the commercial indoor swimming pool facilities.

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      • 洋弓 초보자를 위한 지도방안에 관한 연구

        조연철 啓明大學校 生活科學硏究所 1990 科學論集 Vol.16 No.-

        This article concerns with basic training methods for the beginning archers, which is designed for expansion of archery as a popular sports. Contents include theoretical explanations on archery, the types and equipment of archery, and basic postures of archers. Training methods are comprised of bare hand methods based on the teaching experences and reference materials collected mation-wide, and includes exercise with rubber strings and real bows. The final part deals with the physical exercise with bows for the beginners.

      • 柔道 밧다리 후리기의 kinematic 分析

        趙衍澈,魯奭奎 啓明大學校 生活科學硏究所 1987 科學論集 Vol.13 No.-

        The purpose of the study was to analyze the Kinematics component of O-soto-gari in Judo. The subjects were 4 male college judo caliber players. They were filmed at 100f/sec. The analyzed Variables were angular velocity and angular accee ation of leg and angular change during O-soto-gari. The results were summarized as follow; 1. During Kuzushi-Tsukuri phase the stride and volocities were 1.093m and 1.497m/sec in each. 2. And during in the Tsukuri-Kake phase the maximum angular velocities in 0.2 seconds were 400 degree/sec in low leg and 350 degree/sec in upper leg. The maximum angular acceleration was -4000 degree/sec²in low leg and 4000 degree/sec²in upper leg. 3. During Kake phase maximum angular velocities were 680 degree/sec in low leg and 400 degree/sec in upper leg. And maximum angular acceleration was 9500 degree/sec² in low leg and 3000 degree/sec²in upper leg. 4. In order to analyze the Kinematic and Kinetic components of O-soto-gari accuretely, the study should be performed with 3-D and force plat-form system.

      • KCI등재후보

        Red Number 104호를 포함한 치면세균막 착색정제의 적정 색소함량 및 저작도포시간에 관한 연구

        신승철,서현석,류현,장연수,변계영 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.1

        The authors have examined the PHP index, in order to choose the optimum concentration, calivary flow volume and chewing time for Red-Plaque tablets, one of the newly developed disclosing agent for dental plaque. 4 kinds of tablets as 0.5㎎ of Red No.104, 1.0㎎, 2.0㎎ and 5.0㎎ were produced and 30 adults volunteers were selected for clinical experiments. PHP index were checked for extracted tooth of lateral incisor with artificial plaque and dyeing with various concentration of Red-Plaque, as well as for volungeerss 'teeth. Obtained date were analysed and compared. 1. Carbohydrate and protein were contained in dental plaque. 2. 2.0㎎/250㎎ to 5.0㎎/250㎎ of Red 104 contained Red-Plaque tablets were recommended to use checking the dental plaque clinically. 3. It needed more than 1 minutes chewing for disclosing the dental plaque enough, with a 250㎎ Red-Plaque tablet. 4. It was recommended that 2㎖ to 5㎖ volume saliva were needed to dissolve a Red-Plaque tablet of 250㎎ for 1 minute's chewing.

      • KCI등재

        胎兒의 權利와 母權에 대한 考察 : 美國憲法上의 論議를 중심으로

        정연철 동의대학교 지방자치연구소 2003 공공정책연구 Vol.19 No.-

        This article handles dispute the rights between fetus and Maternity in American Constitutional Law. Rethinking of pregnancy based on a feminist understanding of connection and responsibility shifts the focus of the analysis from the conflicting rights of the mother and the fetus to their conflicting as well as shared needs. Emphasizing needs and responsibility, this discourse reflects more closely women’s experience in pregnancy than does the model of conflicting rights. Moreover, it suggests a reconceptualization of the legal treatment of pregnancy that will lead to the development of policies that promote both maternal and fetal health by expanding, not restricting women’s reproductive control. Recharacterizing the problem of fetal endangeiment as one of meeting the sometimes but not inevitably conflicting needs of the mother and the fetus not only grounds the inquiry in the specificity of the women’s condition, but also expands the scope of alternative solutions. The answer to the dilemma can no longer be singly to privilege either maternal or fetal rights. Rather, the solution must involve some means of meeting these needs.

      • 병렬 구조를 갖는 퍼지-PID 제어기 설계

        추연규,강신철 진주산업대학교 2000 論文集 Vol.39 No.-

        In this paper, a parallel structure of fuzzy-PID control systems is proposed, It is associated with a new tuning method which, based on gain margin and phase specifications, determines the parameters of the fuzzy-PID controller. In comparison with conventional PID controllers, the proposed fuzzy-PID controller shos higher control gains when system states are away from equilibrium and, at the same time, retains a lower profile of control signals. Consequently, better control performance is achieved. With the proposed formula, the weighting factors of a fuzzy logic controller can be systematically selected according to the plant under control. By virtue of using the simplest structure of fuzzy logic control, the stability of the nonlinear control system can be analyzed and a sufficient BIBO stability condition is given. The superior performance of the proposed controller is demonstrated through a simulation example.

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