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      • 중국산 중생대 후기 거미화석(거미목 : 늑대거미과) 연구

        김주필(Joo-Pil Kim),이형민(Hyung-Min Lee),이진숙(Jin-Suk Lee) 한국거미연구소 2016 한국거미 Vol.32 No.2

        중국 지린성(吉林省) 남부 지역인 랴오위안(Liaoyuan) 탄광 도시인 중생대 후기 셰일(Shales) 지층인 Yixian층에서 발굴된 늑대거미과 일종인 Lycosidae sp를 보고한다. This paper report one species, Lycosidae sp. Type Specimen Lycosidae sp. was excavated from Lyaoyuan, Jilin China. Inside a stratum the Mesozoic eva (creataceous period). Type Specimen of Lycosidae sp. is deposite at the Joo-pil spider museum. Namyangjoo-si, Kyungi-do.

      • 질산용액에서 Nitroaniline 류에 의한 Al-brass의 부식억제에 관한 연구

        주석복,김면섭,이성하 漢陽大學校 環境科學硏究所 1992 環境科學論文集 Vol.13 No.-

        0.1M 질산용액에서 nitroaniline류에 의한 Al-brass의 부식억제에 대하여 무게감량 실험, 분극실험, SEM사진 분석 등을 행하였다. Al-brass의 부식속도는 부식계의 온도와 억제제의 농도 그리고 부식억제제의 형태 등에 의존한다. 무게갈량실험과 분극실험을 통해 알아낸 부식억제 효율은 2-nitroaniline>3-nitroaniline>4-nitroaniline의 순이었다. 분극실험의 결과로부터 억제제의 농도가 증가할수록 부식전위는 noble한 방향으로 이동하며 양극 Rafel slope는 일정한 반면 음극 Tafel slope는 증가하여 전류밀도를 감소시키는 것으로 보아 억제제인 nitroaniline는 Al-brass의 음극반응을 억제하는 것을 알 수 있었다. SEM사진 분석에서는 Al-brass의 표면상태를 확인함으로써 각 억제제가 부식반응을 상당히 억제하고 있음을 알 수 있었다. 또한, Flory-Huggins adsorption isotherm의 도입으로 구한 열역학적 특성치로부터 억제제의 흡착형태 등을 알 수 있었다. The inhibition effect of nitroanilines of corrosion of Al-brass in 0.1M nitric acid has been studied by weight loss measurement, polarization method and scanning electron microphotographs. Corrosion rate of Al-brass was depended on concentration of inhibitor and and temperature. The order of inhibitor efficiency according to the position of the substitued group was 2-nitroaniline>3-nitroaniline>4-nitroaniline. The results obtained from weight loss measurements were agreed to those obtaind from polarization studies. Thermodynamic parameters obtained form Flory-Huggins adsorption isotherm showed strong interaction between inhibitor molecules and Al-brass surface.

      • 남·여 중학생의 비만의식 및 체중조절 실태에 관한 연구

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

        This paper selected 148 middle school students as targets and studied the degree of obesity with BMI using height and weight for analyzing middle school student's consciousness about obesity and pattern and plan of weight control. Average height and weight of targets were 165.21㎝ and 56.98㎏ in case of man and 159.10cm and 51.68㎏ in case of woman. According to BMI, 35 persons among total were obese group and 113 persons were non-obese group including low-weight persons. When comparing BMI, the degree of man's obesity was higher than the degree of woman's one due to statistical significance. Although there is no relation between target's general environment and the degree of obesity, in obese group, their father's job was usually manager and technical worker and the degree of their brothers's obesity was high. Significance differences between targets' life patterns were sleeping hours a day, education of weight control in home and expense of light meal among allowance. It was surveyed that obese group had static leisure and their food control was performed well through recognizing their figure in comparison to none-obese group. The degree of obese group's satisfaction was lower than non-obese group's one and the state of preponderance of extraodinary weight was distinguished in obese group. For the consciousness of their figure, 25% of obese group recognized them as obesity and 12.5% of low-weight group recognized them as obesity so there was difference between actual figure and recognized figure. 23.5% of obese group experienced dietary treatment for weight control and 6.1% of non-obese group experienced it. In case of exercise cure, 45.7% of obese group and 22.1% of non-obese group exercised for weight control. Targets are usually trying weight control through dietary treatment and exercise and there was no case to take in drug. It was considered that the case to perform weight control through extreme method is still rare.

      • SCOPUSKCI등재
      • KCI등재

        조선시대 직령(直領)제도 : 조선왕조실록을 중심으로 Focusing a True Record of the Chosun Dynasty

        李珠英,權瑛淑 服飾文化學會 2000 服飾文化硏究 Vol.8 No.2

        According to the study of Jik-Ryoung(直領) consulting chronicles of the Chosun Era, Jik-Ryoung had been worn for various uses as official outfit, ordinary attire or clothes for the celebration of their coming of age, wedding ceremonies, funeral rites, and religious ceremonies, etc. from the beginning to the end of the Chosun Era. The conclusions are shown briefly as follows. 1. There are several terms of Po(袍) related to Jik-Ryoung in the chronicles under the name of Jik-Ryoung Ui(直領衣), Ui-Sal Jik-Ryoung(衣撒直領), and Jik-shin(直身). Jik-Ryoung Ui is the other name of Jik-Ryoung that they called it when it was used for funeral rites and religious ceremonies. The Chinese Ye-Sal(曳撒) was called the Ui-Sal Jik-Ryoung in Korea, but this is different with Jik-Ryoung regarding its divided up and bottom style. Jik-Shin is almost same as Jik-Ryoung. 2. During the latter period of the Chosun Era, we can find different frequency in use of the Jik-Ryoung. Jik-Ryoung was shown constantly in the cases of that king, Crown Prince and lower-level officials wore it for funeral rites and lower-level officials, artisans, merchants, humbles and slaves wore it for official outfit. Uses of the Jik-Ryoung increased for military officers' outfits, in contrast to decreasing of uses for ordinary attires of king, Crown Prince, and the commons, and official outfits of civil officials. 3. These different aspects mean the change of estate and role. For the basic four ceremonial occasions- the ceremonies of coming of age, marriage, funeral, and ancestor memorial-, it appeared constantly. Therefore the social role had been maintained also by then. As an official garb, the role for official uniform of petty official maintained by the end of the Dynasty. But from the latter 1600's to the former 1700's, the roles for official garbs of civil officials and military officers decreased and increased respectively. Before the Hideyoshi's Invasion of Korea in 1592, ordinary social clothes had orders by people's social status who wore them ; those were Dan Ryoung(團領), Hong Jik Ryoung(紅直領), Jik Ryoung(直領), Cho'l Rick(철릭) in the order named. After the war, various Po(袍) of Do Po(道袍), Shim Ui(深衣), Jung Chi Mak(中致莫), Chang Ui(창의), Jang Ui(長衣), Ju Ui(周衣) and so on had been worn until the King Young Jo(英組)·Jung Jo(正組) period. In result, the social role of Jik-Ryoung was reduced as the uses decreased more and more. For a mourning dress, it had a same aspect as the case of ordinary social wear. 4. Considering the color, they used blue for the clothes for doing-up-the-hair ceremony, white for mourning clothes, and white, black for ancestor memorial ceremony clothes. On the official outfits of officials, dark blue and black were used mostly. And lower-level offcials' clothes had white, red, and green on them. They used red and green for the plain dresses. 5. Examining the materials, clothes for the celebration of one's coming of age were made of high quality silks, Kwang Hwa Dan(廣禾緞), Also they made clothes for funeral rites of rough and thick linen, and made clothes for religious ceremonies of linen and hemp. The official outfits were made of practical materials like cotton, hemp and ramie. Cotton, pongee and satin were uesd to make ordinary attire.

      • 舶用補機驅動用 Inverter의 問題点에 對한 小考

        吳錫珠 군산대학교 1983 群山水産專門大學 硏究報告 Vol.17 No.3

        It has been used the Thyristor Inverter fed induction motor for speed controlled the deck auxiliary machine widely, because it has many advantages in every respect, for instance, economic, repairing, lower price and practical used etc. On the other side, we must be considered about many troubles for inverter-motor driving Therefore in this paper we should be described many troubles in compared to current source type inverter with voltage source type inverter and a means of settling for the weak point. Consequently we tried to research for improvement of inverter-motor driving of speed controlled deck auxiliary machine. The results were obtained as follows. 1) Due to output power supply has contained a great deal of the higher harmonics, because DC terminal of voltage source type inverter are connected with a large capacity element, it is injured to characteristics of speed controlled induction motor driving. Therefore, we have to reduced the higher harmonics and developed to forward direction operating of transducer device has a few pulsating quantity. In order to obtained the high degree of effeciency in good condition, by means of input power waveforms has maintained as standard sine waveforms as possible. 2) Owing to output power of inverter has contained a deal of the higher harmonics, exclusive motor (IM) with Thyristor Inverter came into existance for instance, irregular revolution, vibration and noise suddenly, so we must be considered counterplane to improvement about design and manufacture of appropriated construction and higher-torque for motor driving in good condition. 3) By means of the application of Micro-processer, we should be constant efforts, tried to improvement for transfer characteristics of speed controlled induction motor fed Inverter in future.

      • 船舶補機의 遠隔制御特性에 關한 硏究

        吳錫珠,金秀植 군산대학교 1992 群山水産專門大學 硏究報告 Vol.26 No.1

        In this paper we have described on the characteristics of the remote control system for auxiliary machinery of ship and we tried to research for improvement method using the infra-red rays remote control system. 1. We could be changed the remote control system for the solenoid operated 3 port valve of oil motor, instead of the hand operated stream-flow control systems for the auxiliary machinery(trawl winch, fishing & deck winch etc. ). 2. In order to the improvement of reliability and accuracy, the infra-red rays remocon system are composed of the wireless receiver, portable type transmitter and prevent against trouble that the interference for various of other infra-red rays, and has choose the PPM system. 3. also we intended to get stability and reliability for control system driving in good condition against troubles, A) For the purpose to prevent the interference and abnormal operations, it has made additions to keycode and custum-code of data and select inversion transfer system. B) In order to reduce the power consumption to minimum, the switch has canceled the electric source. 4. The omni-directional antenna system has arrange four pair parallel photo-diodes, so we could be able to control for omni-directional part using the portable type transmitter.

      • 연삭기용 자동 밸런싱 장치의 설계 및 평가

        장홍석,최대봉,황주호,홍준희 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-

        The balance of high speed spindle system with high precision rotation like grinding machine is very important. Traditionally, we use trial and error method to balance the spindle. It takes much time. So we are developing the automatic balancing equipment being used in the grinding machine. The balancing head we develop is wireless. It will be used high-speed grinding machine. We use influence coefficient method to control the automatic balancer. Experiments are based on automatic and manual balancing. We perform test of the vibration filter. It helps to remove noise. The filter and experiments with automatic balancing controller show that automatic balancing control can be successfully achieved with the quick response and good stability characteristics.

      • 彈性理論에 依한 鋼뼈대構造物의 連續型 最適 設計에 關한 硏究

        황학주,김석기,이원복 연세대학교 산업기술연구소 1975 논문집 Vol.6 No.1

        Linear Programming is the most highly developed operations research algorithm currently in use. Virtually every reputable computing center has a version of the simplex method. This availability of a programmed algorithm greatly enhances the choice of linear programming. Linear Programming is also capable of handling exceedingly large problems, which of course is necessary if one wishes to optimize large structures. The linear programming formulation is conceptually more palatable to the mode of thought of the structural engineer than are some of the esoteric operations research algorithms. In this paper, therefore, a metrix set of nonlinear working stress constraints is derived by the stiffness method, following the network-topological approach and incorporating the working stress interaction conditions. And then, this nonlinear constraint set is transformed into the constraint set of a successive linear programming problem using the Taylor series expansion. The formulation is greatly enhanced by evaluating the Jacobian of the constraint vector function. The objective function of the nonlinear programming formulation for minimum volume design is derived by the relation between area and moment of inertia, and this nonlinear objective function is transformed into the linear by the Taylor series expansion.

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