"하고초(夏枯草)"의 생약학적 연구

황명석,조창희,박종희,Whang, Myung-Suk,Cho, Chang-Hee,Park, Jong-Hee 한국생약학회 2000 생약학회지 Vol.31 No.2

'Ha Go Cho (夏枯草)' is one of the Chinese crude drugs used mainly as a diuretic. With regard to the botanical origin of 'Ha Go Cho', it was reported by Su et al. that those from China were originated from the fruited spica of Prunella vulgaris L. of Labiatae. It was, however, for the herba or spica of Prunella vulgaris L. var. lilacina Nakai from Korea. According to survey of markets in Korea, most of the materials collected in the markets seemed to be originated from Prunella plant, while some seemed to be Thesium plant of Santalaceae. To clarify the botanical origin of 'Ha Go Cho', the anatomical characteristics of Prunella vulgaris L. var. lilacina Nakai and Thesium chinense Turcz. were studied. As a result, it was clarified that some 'Ha Go Cho' from Korea were the herba or spica of Prunella vulgaris var. lilacina, whereas some others were the herba of Thesium chinense.

一方向凝固시킨 Al-Cu-Mg共晶合金의 機械的 性質에 미치는 時效의 影響

趙顯驥,康晃鎭,趙美子 慶北大學校 1982 論文集 Vol.33 No.-

The microstructure and mechanical properties of unidirectionally solidified Al-Cu-Mg eutectic alloys have been studied in as-grown and aged condition. After unidirectionally solidification, specimens of solution treated and quenched eutectic were at 180°, 230°, 260℃ in a salt bath for various time. The results obtained are as follows; 1) Precipitation on hardening of the ductile phase is a feasible mechanism for strengthening of composites. 2) Mechanical Testing of the tenary eutectic has shown that composite is strengthened about 30 to 50% by ageing. 3) Tensile and compression strength of this composites are 25 and 70kg/㎟ by ageing treatment in growth 0.1mm/min. 4) The unidirectionally solidified structure are changed by ageing. It seems that the low Cu and Mg solute atoms are likely due to epitaxial precipitation onto CuAl_2 lamellar respectively.

Transient Response Analysis of an Electret Microphone

Whang Cho 대한기계학회 1991 KSME International Journal Vol.5 No.2

Control of a High Precision Macro-Micro Robotic Manipulator System

Whang Cho 대한기계학회 1997 KSME International Journal Vol.11 No.1

Constraint Embedding in Kinematics and Dynamics of Hybrid Manipulator Systems

Whang Cho 대한기계학회 1994 KSME International Journal Vol.8 No.1

Optimal Synthesis of a Wrist-Type 6 Degree-of-Freedom Force/ Torque Sensor Using Stewart Platform Structure

Cho, Whang 광운대학교 신기술연구소 1996 신기술연구소논문집 Vol.25 No.-

본 연구에서 고려하고자 하는 힘/토크(F /T) 센서는 스튜어트 프레폼(Stewart Platform) 메카 니즘을 활용하고 있다. 그러나, 일반적으로 스튜어트 프레폼에서 사용되는 6개의 미끄럼 조인트들은 6개의 축방향으로 탄성 변형이 가능한 6개 바들로 대치된다. 스튜어트 프레폼 형태의힘/토크 센서의 설계하기 위하여 필요한 위치해석, 1차와 2차 운동학적 해석, 1차 운동학적 해석을 기초로한 힘과 변형관계 특성해석등이 수행된다. 마지막으로 등방성 지수를 이용하여 힘/토크 센서의 설계하기 위한 차원해석이 수행된다. The F /T sensor investigated in this utilized the Stewart Platform Mechanism Structure. However, normally-employed 6-prismatic joints are replaced by 6-prismatic bars, which are deformable only along the axial direction of the bars. The complete analyses for the design of this type of F /T sensor are conducted: the position analysis, the first order and the second order kinematic analyses, and force-deformation analysis based on the first order kinematic characteristics of the system are performed. Lastly, a dimensional synthesis for the F /T sensor is performed based on the kinematic isotropic index.

Barycentric Approximator for Reinforcement Learning Control

Whang Cho 한국정밀공학회 2002 International Journal of Precision Engineering and Vol.3 No.1

Candidate of Probiotic Bacteria Isolated from Several Jeotgals: Korean Traditional Fermented Seafoods

Cho, Gyu-Sung,Do, Hyung-Ki,Bae, Chae-Yoon,Cho, Gyu-Sup,Whang, Cher-Won,Shin, Heuyn-Kil The Korean Society of Food Science and Nutrition 2006 Preventive Nutrition and Food Science Vol.11 No.2

Seventy eight bacterial strains were isolated from several jeotgals using MRS and M 17 agar media. The probiotic properties such as tolerance of extreme growth condition, production of antimicrobial compound, production of hydrogen peroxide, and enzymatic activity of bile salt hydrolase were investigated. DHK 4, 10, 21 and 74 strains showed_a strong tolerance property against extreme conditions such as low pH and 0.5% oxgall-supplemented medium. DHK 10 and 47 strains produced hydrogen peroxide on TMB agar plate. DHK 8 and 10 strains produced antimicrobial compounds onto MRS agar against E. facalis. DHK 4, 6, 21, 29, 33, 63 and 87 strains had high activities of bile salt hydrolase. Especially, DHK 10 displayed a strong probiotic candidate; the abilities to produce the antimicrobial compound, hydrogen peroxide, and bile salt hydrolase. All these strains are assumed to be useful probiotic candidates. Among 78, twenty seven strains which have probiotic properties were tentatively identified by 16S rRNA sequencing. Among them, 7 Lactobacillus spp., 6 Leuconosotoc spp., 2 Weisella spp., 1 Pediococcus sp., 1 Staphylococcus sp., 1 Enterococcus sp. and 2 Streptococcus spp. were tentatively identified.

A Bond Graph Approach to the Modeling of General Multibody Dynamic Systems

Whang Cho 대한기계학회 1998 KSME International Journal Vol.12 No.5

홀로된 여성 노인의 자매 관계 특성이 심리적 적응에 미치는 영향

조황숙(Cho, Whang-Sook),조병은(Cho, Byung-Eun) 한국노년학회 2000 한국노년학 Vol.20 No.2

본 연구는 홀로된 노인 여성을 대상으로 가장 친근하다고 지각되는 자매 관계의 구조적, 기능적, 질적 특성에 따라 홀로된 노인 여성의 심리적 적응(생활만족도, 고독감)에 미치는 영향력을 알아보았다. 60세 이상의 여성 노인 164명에게 질문지를 통하여 다음과 같은 결과를 얻었다. 홀로된 노인 여성과 자매간은 대면적 접촉보다는 통화 빈도가 활발한 것으로 나타났다. 경제적 지원과 정서적 지원은 주고 받았다고 지각하고 있었으며, 사교적 지원과 서비스적 지원은 주고받은 도움의 양이 비슷하다고 느끼고 있었다. 홀로된 노인 여성과 자매간은 주고받은 도움의 양이 공평할수록 관계의 질이 높은 경향을 보였다. 홀로된 노인 여성의 고독감은 사회 활동 수준과 자매관계의 질적 특성에 의해 영향을 받았으며 생활만족도는 경제적 수준에 의하여 영향을 받는 것으로 나타났다. 결과적으로 우리 나라 노인 미망인과 자매 관계의 특성은 애정적이며 상호 호혜적이고, 공평성의 원리가 적용되는 평등한 관계임을 알 수 있었다. The ties and support from sisters play major supportive roles in the psychological adjustment of aged widows in the absence of a spouse. This study attempts to look into the characteristics of sisterly ties, perhaps the most closely-felt kinship to widows, and to study their effects; in structural, functional, and in qualitative aspects, on widows' psychological adjustment measured by loneliness and life satisfaction. A total of 164 questionnaires have been collected from widows over 60 years old who have sisters living in Seoul, Inchon, and Taejon. The respondents were widowed at the ages between 48 - 59, living with their eldest sons' family, and are "average" both in health and financial status. The aged widows consider their younger sisters to be closest to them. In looking at the structural characteristics of the sisterly tie of aged widows, albeit their sisters reside in different cities and/or provinces, they are very active in exchanging information, and in keeping close ties with their sisters via telephone contacts. In terms of mutual give-and-take of support, the aged widows seem to perceive that their "giving", more often than not, exceed their "taking" quantitatively. In the equitability of mutual help between the sisters, the elder sisters feel that they have received more in financial and emotional help; whereas, in social and service aspects, the give-and-take of help is quite often at an even keel. In the functional aspect the quality of relationships between the sisters tends to increase as the emotional and social support has been mutually maintained at an even level. Such are the cases in financial and service supports, when at even level, tend to enhance the qualitative aspect of their relationship. The qualitative characteristics; the closeness of the widows with their sisters is relatively high. Analyzing the relative effect of relationships between sisters on the psychological adjustment of the widowed, the financial status was the most significant in predicting their life satisfaction; whereas, the level of their social activities and the qualitative characteristics of their sisterly ties had effect on their sense of loneliness. Overall the study reveals that the relationship between a widowed elder and her sister is characterized by mutually affectionate, reciprocal, and equitable relations.