• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2014.10a
• /
• pp.585-588
• /
• 2014

This paper presents a self-powered sensor node circuit using photovoltaic and vibration energy harvesting. The harvested energy from a solar cell and a vibration device(PZT) is stored in a storage capacitor. The stored energy is managed by a PMU(Power Management Unit). In order to supply a stable voltage to the sensor node, an LDO(Low Drop Out Regulator) is used. The LDO drives a temperature sensor and a SAR ADC(Successive Approximate Register Analog-to-Digital Converter), and 10-bit digital output data corresponding to current temperature is obtained. The proposed circuit is designed in a 0.35um CMOS process, and the designed chip size including PADs is $1.1mm{\times}0.95mm$.

• Journal of East-West Nursing Research
• /
• v.7 no.1
• /
• pp.18-31
• /
• 2002

This study, as a basic research to manage a Chinese Medicine Health Promotion Center by way of showing an example, is a before and after experiment research for simple group to verify a difference with cholesterol, health status and perception of health in order to confirm a effectiveness of diet and regimen according to the 4th status of physical constitution. Research object was chosen of 42 persons who operate a physical constitutional dietary regimen among them after selecting professors and clinical nurses (55 persons) majoring in the science of nursing who participated in Chinese Medicine-oriented Nurse Training Course from Aug. of 2001 to Feb. of 2002 all over the country. Diagnostic tools for physical constitution was used of the questionary that is currently consisted of physical constitution grouping test in Eastern & Western Diagnose Center of K Medical Center, and rating of health status was used of the tool that standardized CMI(Cornell Medical Index) to be available for Korean, and perception measurement for health status was used of a visual analogue scale for the health status that each one perceive personally, and physiological status was measured of cholesterol in blood. Analysis for the collected data was carried out by percentage, $X^2$ test, paired t-test according to research object by using SPSS, and the results of this study are as follows. 1) There was no difference with cholesterol before or after the experiment for objects. As a result of estimation about difference with health status by areas before or after the experiment, there are more improved result in eyes, ears, digestive organs, bones and sinews organs, frequency of a disorder, habit, adaptation status, angry, healthy status than before the experiment. As a whole, after the experiment the health was more improved than before the experiment. As the result to inspect a difference of health perception between before and after experiment, after the experiment the health perception level was improved than before, however there was no meaningful differences. 2) As the result to inspect a difference of cholesterol between before and after experiment according to object's physical constitution, in the case of So-yang-in(a person with the minimum male: according to the male and female principles(the sun and the moon)) among the 4th status of physical constitution there was only meaningful difference statistically, however, after the experiment their cholesterol's value was increased. As the result to inspect the difference of health status between before and after the experiment according to physical constitution, all of Ta-um-in(a person with maximum the female), So-yang-in(with the minimum male), So-um-in(with the minimum female) had a meaningful difference before and after the experiment, which means that in all case by physical constitutional groups, after the experiment their health status was more improved than before the experiment. As the result to inspect a difference of health perception between before and after according to physical constitutions, in the case of Tae-um-in and So-um-in, average score after the experiment was risen than before the experiment so that it means that the level of health perception was improved, however, there was no meaning statistically. According to the above results, if continuous diet and regimen by each physical constitutions could be implemented, it is certain that the health could be maintained and promoted. And, what we are healthy is for oneself to feel it subjectively. However, I think that cholesterol score in blood that we can view objectively could be changed distinctly if we can implement a strict diet and regimen. Accordingly, it is necessary for a method and period of experiment to be more strict and longer. According to the above results, I would like to suggest as follows. 1) In order to understand health status by Korean's physical constitutions and to generalize it, these research will be repeated against much more objects that could be selected by proper grouping method to consider a representative. 2) It is necessary for a research to inspect health status by physical constitution by developing a health status measurement tool that has higher confidence and propriety based on physical constitutional theory.

• Journal of Applied Biological Chemistry
• /
• v.53 no.1
• /
• pp.44-50
• /
• 2010

Tae-Um-Jo-wee-Tang (TUJWT) and Do-Dam-Tang (DDT) have been used as an anti-obesity herbal medicine but their effect and mechanism of action have not been studied. We investigated the effects of TUJWT and DDT on energy and glucose homeostasis using Sprague Dawley female rats with diet-induced obesity. The mechanisms of action of TUJWT and DDT were studied whether they had anti-obesity effects. Rats fed a high-fat diet were divided into 3 groups: rats in each group received 2 g water extracts of modified TUJWT and DDT, or 2 g cellulose per kg body weight (a negative control) on a daily basis. A further group was fed a low-fat diet as a positive control. We found that DDT significantly decreased body weight and body fat (mesenteric fat and retroperitoneal fat) more than the control. This decrease was due to the reduction in energy intake but no changes of energy expenditure. However, DDT increased fat oxidation as a major energy source than the control. In addition, modified TUJWT and DDT improved glucose tolerance without changing serum insulin levels during an oral glucose tolerance test. In conclusion, DDT have a better anti-obesity effect than TUJWT by decreasing energy intake in female rats with diet-induced obesity. It also improves glucose tolerance.

• The Journal of the Society of Stroke on Korean Medicine
• /
• v.8 no.1
• /
• pp.22-27
• /
• 2007

Objectives : This study was aimed to assess the distribution of metabolic syndrome according to Sasang constitution(SC) in acute stroke patients. Methods : We assessed the type of SC of acute stroke patients in the oriental medical hospitals of 3 universities located in metropolitan region from October 2005 to June 2007 by Ouestionnaire for the Sasang Constitution Classification II(QSCC II). Then, we investigated the general characteristics, the prevalence of each factor of the metabolic syndrome and the prevalence of the metabolic syndrome according to SC. Results : 338 subjects were included into the final analysis. 1. This study showed that the proportion of So-yang was highest of all constitutions(45.9%). 2. The prevalence of high TG, low HDL-chol, high BP, high FBS of Tae-um were higher than those of the other constitutions, but the differencecs were not statistically significant. The prevalence of high WC of Tae-um was significantly higher than other constitutions(p<0.001). 3. The prevalence of metabolic syndrome of Tae-um was significantly higher than other constitutions (p=0.002). Conclusion : There were significant differences in the prevalence of metabolic syndrome according to SC in acute stroke patients. For the further research, it seems to be necessary to construct fundamental databases for stroke by increasing the number of patients and by diagnosing SC more delicately.

• Journal of Haehwa Medicine
• /
• v.10 no.1
• /
• pp.259-268
• /
• 2001

As mentioned above, I have acquired some valuable results about medical treatments with acupuncture for "Trigeminal neuralgia" after studying oriental medical books. 1. The course of medical treatments with acupuncture was, first of all, applying general ones, and then, assisting ones based on occuring area of pain and the cause. 2. For general treatments, "Chok-yangmyong-Wi-Kyong", distributed widely on the face, was used in great numbers. The order, according to the number of using times, of spots for acupuncture was Ha-kwan(11 times), Hap-kok(10), Chan-juk(7), Hyop-geo, Tae-yang, Sa-baek(individually 6). 3. For assisting treaments based on occuring area of the pain, spots of the Kyong-rak, passing through occuring area of the pain, and Kyong-woe-ki-hyol were used in great numbers. 4. The order was O-je, Chan-juk, Yang-baek(individually 8), Tae-yang(5) for the pain of first branch of the trigeminal nerve; Sa-baek(12), Kwan-ryo(6), Go-ryo(5) for the pain of second one; and Hyop-geo, Ha-kwan(individually 6), Dae-young, Hyop-seung-jang(individually 5). Seung-jang(4). 5. For assisting treatments based on the cause, "One-hyol(原穴)", "Rak-hyol(絡穴)" and "5-soohyol(五輸穴)" were used in great numbers. 6. The order was Pung-ji(10), Hap-kok(9), Woe-kwan(5) for "Woe-Kam(外感)"; Nae-jong(12), Tae-chung(10), Chok-sam-ri(7) for "Kan-Wi-Hwa-Seung(肝胃火升)"; Tae-gue(7), Sam-um-kyo, Pung-ji(individually 2) for "Ho-Hwa-Sang-Seung(虛火上升)"; Pung-ryung(4) for "Pung Dam-Jo-R ak (風痰阻絡)"; Kyok-su(2) for "Ki-Che-Hyol-Ho(氣滯血虛)".

• Journal of Sasang Constitutional Medicine
• /
• v.9 no.2
• /
• pp.287-299
• /
• 1997

The Garlic having antibiosis is added to the most cuisine and used to treat dysentery and diarrhea for So-um-in(少陽人). The fact that the garlic, a Kind of Hun-chae, has warm and thermal characteristics couId be proved by a natural ecoIgical action of a fIy, Delia antiqua Meigen. OriginalIy San(蒜) designated Sosan(小蒜), a native species in Korea. But as Daesan(garlic)(大蒜) was imported, it meant both of Sosan(小蒜) and Daesan(大蒜). Now it means only Daesan(大蒜). This process of change of meaning was reviewed by focusing on the Dong-ui-bo-gam(東醫寶鑑). The San-20-mae(蒜二十枚) appearing in the Dangun mythology(檀君神話) should be interpreted not to 'garlic 20 piece(마늘 20개)' but to 'Dal-lae 20 roots(달래 20뿌리)'. It is possible to explain that the hibernant bear compared with the active tiger overcame the animality and the bestiality with perseverance in the dark cave so that it could be transformed to a human at the 21stday, the culmination number of Yang(陽). The garlic decame an abstaining food at sacrificial rituals because it arouses the sexual desire and excites person,s mind. High dose of raw garlic may cause harmful side effects in So-yang-in(少陽人) and Tae-um-in(太陰人) having a thermal characteristic.

• Journal of Korean Society of Rural Planning
• /
• v.27 no.2
• /
• pp.23-34
• /
• 2021

This study aims to understand why the sales volume and the number of visitors are different in each rural tourism village. The study considered that the management and operation of rural tourism villages is one of the major influencing factors. To prove this, the study determined what factors were related to the management and operation of villages and derived detailed items to evaluate them. In the study, the researchers conducted an in-depth interview and a literature review on the management and operation of rural tourism villages in Yangpyeong-gun. They also performed a case study on the Sumi village, one of the successfully managed and operated villages in Yangpyeong-gun, to determine the detailed items. As a result, seven factors were identified. These factors comprise operation entity, governance, shared vision, leadership, efficient role-playing, marketing efforts, and equity in profit distribution. Based on these seven factors, 85 of the evaluation items were developed. The management and operation scores of 85 items were measured and summed for each of the 21 rural tourism villages. First, 21 villages were divided into two groups by the sales figures to derive items to determine the difference in the mean value of the evaluation scores. Second, an independent sample t-test was conducted for each village at YangPyeong-gun. Third, the study divided the 21 villages into four groups using 46 evaluation items. Finally, the study's researchers clarified some challenges to solve and appropriate management and operation plans considering each type of rural tourism village.

• Journal of the Korean institute of surface engineering
• /
• v.42 no.6
• /
• pp.256-259
• /
• 2009

The wafer surface temperature is an important parameter in the etching process which influences the reaction probabilities of incident species, the vapor pressure of etch products, and the re-deposition of reaction products on feature surfaces. In this study, we investigated all of the effects of substrate temperature on the etch rate of $ZrO_2$ thin film and selectivity of $ZrO_2$ thin film over $SiO_2$ thin film in inductively coupled plasma as functions of $Cl_2$ addition in $BCl_3$/Ar plasma, RF power and dc-bias voltage based on the substrate temperature in range of $10^{\circ}C$ to $80^{\circ}C$. The elements on the surface were analyzed by x-ray photoelectron spectroscopy (XPS).

• Proceedings of the IEEK Conference
• /
• 2004.08c
• /
• pp.486-490
• /
• 2004

Programmable logic controller (PLC) is widely used in manufacturing system or process control. This paper presents the design of a 32-bit microprocessor for a sequence control using an Application Specification Integrated Circuit (ASIC). The 32-bit microprocessor was designed by a VHDL with top down method; the program memory was separated from the data memory for high speed execution of 274 specified sequence instructions. Therefore it was possible that sequence instructions could be operated at the same time during the instruction fetch cycle. And in order to reduce the instruction decoding time and the interface time of the data memory interface, an instruction code size was implemented by 32-bits. And the real time debugging as single step run, break point run was implemented. Pulse instruction, step controller, master controllers, BIN and BCD type arithmetic instructions, barrel shit instructions were implemented for many used in PLC system. The designed microprocessor was synthesized by the S1L50000 series which contains 70,000 gates with 0.65um technology of SEIKO EPSON. Finally, the benchmark was performed to show that designed 32-bit microprocessor has better performance than Q4A PLC of Mitsubishi Corporation.

• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 2007.04a
• /
• pp.477-480
• /
• 2007

저전력 OFDM(orthogonal frequency division multiplexing) 시스템용 FFT(Fast-Fourier-Transform) LSI를 저전력 동작을 시키기 위해서 FFT LSI는 current-mode 회로로 구현되었다. Current-mode FFT LSI에서, VIC(Voltage-to-current converter)는 입력 전압 신호를 전류로 바꾸는 first main device이다. 저전력 OFDM을 위해 FFT LSI와 VIC가 한 개의 칩과 결합되는 것을 고려하면, VIC는 전력 손실은 낮고, VIC와 FFT LSI 사이에서의 DC offset 전류는 최소인 작은 크기의 chip으로 설계되어야 한다. 본 논문에서는 새로운 VIC를 제안한다. 선형 동작구간을 넓히고 DC offset 전류를 대폭 감소하는 방법을 제시하였다. VIC는 0.35[um] CMOS process로 구현되었으며, 시뮬레이션 결과에 따르면 제안된 VIC는 current-mode FFT LSI와 0.1[uA] 미만의 매우 작은 DC offset 전류, 1.4[V]의 넓은 선형구간을 갖으며, 저전력으로 동작한다.