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육미지황탕(六味地黃湯)이 Alloxan으로 유발(誘發)된 생쥐의 당뇨병성(糖尿病性) 신증(腎症)에 미치는 영향(影響)
김용성,서수환,Kim, Yong-Sung,Seo, Soo-Hwan 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.4
This study was done to investigate recovery effects of YJT, which has been used clinically in diabetes therapy. Mice were administerd Alloxan to induce diabetes. There body weight and kidney weight changes, BUN, creatinine, glucose, total protein and ALP activity in serum, urinalysis, excretion volume of Na+, K+ in urine were measured. The results were as follows: 1. Increase in body weight and kidney weight and the ratio of kidney to body weight of YJT treated group showed similar results with those of normal group. 2 The BUN, creatinine, ALP activity levels in serum of YJT treated group were similar with those of normal group. 3. The glucose level in serum of YJT treated group was better than that of control group 4. The result of the urinalysis in the group of YJT was almost same as that of control group The above results suggest that YJT partially improves the function of the kidney.
김용성,Kim Yong-Sung 한국정보기술전략혁신학회 2002 情報學硏究 Vol.5 No.4
The Extension of Base is a fundamental Method to expend the moduli in RNS(Residue Number System). RNS has the benefit of parallelism and no carry propagation at each moduli, but division , extension of base and etc. is the problem of RNS in case of the operation speed.Generally this method is applied to system using Mixed Radix Conversion. it appears to decrease the size of Arithmetic Unit, but increasing the time of operation. So in this paper, the Improved Extension of Base is proposed using Chinese Remainder Theorem. it has the comparative small size and Improved speed.
그래픽 디스프레이에 적합한 Cosine, Sine함수 발생기 설계에 관한 연구
김용성,Kim, Yong-Sung 한국정보기술전략혁신학회 2005 情報學硏究 Vol.8 No.3
Cosine and Sine function is widely used for the arithmetic, translation, object drawing, Simulation and etc. of Computer Graphics in Natural Science and Engineering. In general, Cordic Algorithm is effective method since it has relatively small size and simple architecture on trigonometric function generation. However profitably it has those merits, the problem of operation speed is occurred. In graphic display system, the operation result of object drawing is quantized and has the condition that is satisfied with rms error less than 1. So in this paper, the proposed generator is composed of partition operation at each ${\pi}/4$ and basic Cosine, Sine function generator in the range of $0{\sim}{\pi}/4$ using the lower order of Tayler's series in an acceptable error range, that enlarge the range of $0{\sim}2{\pi}$ according to a definition of the trigonometric function for the purpose of having a high speed Cosine, Sine function generation. And, division operator using code partition for divisor three is proposed, the proposed function generator has high speed operation, but it has the problems in the other application parts with accurate results, is need to increase the speed of the multiplication.
소(少) 제수용 잉여수계 제산 연산기 설계에 관한 연구
김용성,Kim, Yong-Sung 한국정보기술전략혁신학회 2004 情報學硏究 Vol.7 No.2
잉여수계를 사용한 연산기는 디지털 신호처리, 컴퓨터 그래픽 등에 있어서 여러가지 장점을 갖으므로 전용 프로세서 설계에 사용되고 있다. 그러나 크기 비교와 일반적인 제산에 있어서 단점을 갖는다. 본 논문에서 제안된 연산기는 곱의 역을 사용한 제산의 결과가 나머지를 갖는다면 현재 제수에 의해 산출된 몫의 최대 값보다 큰 값이 발생되는 조건을 반복연산의 종결조건으로 사용하였으며, 몫의 비교를 대응된 제수 값으로 대신하였다. 그러므로, 설계된 연산기는 작은 크기의 제한된 제수를 사용하는 제한점은 갖지만, 컴퓨터 그래픽의 스케일링 등에 적용하는 경우 연산기의 크기 및 속도가 우수한 제산 연산기로 사용할 수 있다.
전도성 페이스트 도포량 변화에 따른 결정질 태양광 모듈의 전기적 특성에 대한 영향성 분석
김용성,임종록,신우균,고석환,주영철,황혜미,장효식,강기환,Kim, Yong Sung,Lim, Jong Rok,Shin, Woo Gyun,Ko, Suk-Whan,Ju, Young-Chul,Hwang, Hye Mi,Chang, Hyo Sik,Kang, Gi-Hwan 한국재료학회 2019 한국재료학회지 Vol.29 No.11
Recently, research on cost reduction and efficiency improvement of crystalline silicon(c-Si) photovoltaic(PV) module has been conducted. In order to reduce costs, the thickness of solar cell wafers is becoming thinner. If the thickness of the wafer is reduced, cracking of wafer may occur in high temperature processes during the c-Si PV module manufacturing process. To solve this problem, a low temperature process has been proposed. Conductive paste(CP) is used for low temperature processing; it contains Sn57.6Bi0.4Ag component and can be electrically combined with solar cells and ribbons at a melting point of $150^{\circ}C$. Use of CP in the PV module manufacturing process can minimize cracks of solar cells. When CP is applied to solar cells, the output varies with the amount of CP, and so the optimum amount of CP must be found. In this paper, in order to find the optimal CP application amount, we manufactured several c-Si PV modules with different CP amounts. The amount control of CP is fixed at air pressure (500 kPa) and nozzle diameter 22G(outer diameter 0.72Ø, inner 0.42Ø) of dispenser; only speed is controlled. The c-Si PV module output is measured to analyze the difference according to the amount of CP and analyzed by optical microscope and Alpha-step. As the result, the optimum amount of CP is 0.452 ~ 0.544 g on solar cells.
갑상선(甲狀腺) 기능저하증(機能低下症) 환자(患者) 1례(例)에 대(對)한 임상적(臨床的) 고찰(考察)
김용성,김경수,Kim, Yong-Sung,Kim, Kyung-Su 대한한의학방제학회 2001 大韓韓醫學方劑學會誌 Vol.9 No.1
Tyroid gland is the biggist endocrine organ which is located in front of trochea. The role of the thyroid gland in the total body economy comprises the synthesis, storage, and secretion of thyroid hormones, which are necessary to growth, development, and normal bodymetabolism. Hypothyroidism is the state of a dificiency in the secretion of Thyroid hormone. This may result from idiopathic myxedema, or distruction or removal of thyroid, or goiter, or thyroid adenomas. Hypothyroidism corresponds to thick lips, dry skin, puffy eyelids, coars hair, megaloglossia, and pudgy hands etc. On one case of Hypothyroidism who was hospitalized for the chief complaints of fatigue, general weakness, coldness, edema in head, neck site, lumbago. I diagnosed this case as dificiency of Qi and blood(氣血兩虛) or dificiency of warm-Qi in spleen and kidney(脾腎陽虛). And then I used Moxa treatment to increase Qi and blood, and Acupuncture treatment to reduce shoulder and neck pain, lumbago. And Herb-med is used to increase Qi and blood, and recover of general condition. As a result, this patient got better more quickly.
김용성,임용석,홍대기,Kim, Yong-Sung,Lim, Yong-Seok,Hong, Dae-Ki 한국반도체디스플레이기술학회 2010 반도체디스플레이기술학회지 Vol.9 No.2
In this paper, we design a modem SoC (System on Chip) for low power consumption and high speed wireless communications. Among various schemes of high speed communications, an MB-OFDM (Multi Band-Orthogonal Frequency Division Multiplexing) UWB (Ultra-Wide-Band) chip is designed. The MB-OFDM uses wide-band frequency to provide high speed data rate. Additionally, the system imposes no interference to other services. The 90nm CMOS (Complementary Metal-Oxide Semiconductor) technology is used for the SoC design. Especially, power management mode is implemented to reduce the power consumption.
김용성,Kim Yong Sung 한국문헌정보학회 1990 한국문헌정보학회지 Vol.18 No.-
This study attempts to verify the hypothesis that the interdisciplinary communication patterns may be different according to each disciplines. To put it concretely, it is intended to analyze and compare the subject distribution, the format, the age, the origin and the language of the documents of other disciplines cited in the journal articles according to each disciplines. To test the hypothesis philosophy, sociology and physics as the sample for the three disciplines, that is, humanities, social sciences, and natural sciences are sellected, and the documents cited in the journal articles published in 1966, 1971. 1976, 1981 and 1986 by the Korean Philosophical Association, the Korean Sociological Association and the Korean Physical Society are collected. And then the subject distribution, the format, the age, the origin, the language, and their use rate of the documents of other disciplines cited in the journal articles are investigated, analyzed and compared according to each disciplines. Some findings and conclusions made in the study are as follows. 1. The subject distribution of documents of other disciplines cited and its distribution ratio are different according to each disciplines, that is, humanities high, natural sciences low and social sciences medium. 2. The format and the use rate of documents of other disciplines cited are different according to each disciplines. In the three disciplines book and journal are more used than any format of documents in interdisciplinary communication while in case of the humanities and social sciences book is more used than journal, and in case of the natural sciences journal is more used than book in that communication. 3. The age and the use rate of the cited documents of other disciplines are different according to each disciplines. In case of the social sciences and natural sciences the documents of its last 20 years of publication are cited concentrately, and in case of the humanities the literature age is unconcerned. 4. The origin and the language of the cited documents of other disciplines, and its use rate are different according to each disciplines. In the humanities and natural sciences the documents published in foreign country are cited concentrately, and in the social sciences the home publication documents are more cited than the foreign. The documents of other disciplines in English language are most cited among the documents in any foreign languages in interdisciplinary communication. Putting the three disciplines in order of the use rate of the documents in English language, the natural sciences is high, the humanities medium, and the social sciences low. In the social sciences the use rate of the documents of other disciplines in Korean language is high while in the humanities and natural sciences slight.