Bae, Jang Han;Kim, Young Min;Kim, Keun Ho;Kim, Jaeuk
Journal of Physiology & Pathology in Korean Medicine
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v.27
no.6
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pp.717-729
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2013
Bioelectrical Impedance Analysis (BIA) is a non-invasive and low-cost technique that estimates body composition based on the distribution of water and electrolytes in the body by analyzing body's electrical responses to source voltages. In this work, we carried out a systematic literature review on BIA researches in traditional East Asian medicine (TEAM). For comparison, firstly we introduced the concept and principle of BIA, and offered a general overview of research trends in western medical perspectives. We searched through the databases of Oriental Medicine Advanced Searching Integrated System and DataBase Periodical Information Academic for the articles published between 1994 and 2013, with keywords such as 'BIA', 'bioelectrical impedance' and 'impedance'. Among the rough-searched 274 articles, we finally selected 21 articles appropriate to the intended research field. The selected articles were categorized into diagnosis in Sasang medicine, impedance analysis in meridian system, and change of body composition after taking herbal medicine. We found that most of BIA researches in TEAM were preliminary and remained in the peripheral levels which is far behind the western medical research activities. Therefore, more efforts are needed to study BIA in association with major subjects such as pattern identification or physiological/pathological phenomena. In addition, methodological breakthrough of BIA is possible by applying the diagnostic concepts of the TEAM in relation to the balance of Qi and Blood.
Modern enterprise activity and consuming pattern which have been continued since the industrial revolution are causing a great burden on the environment, so that the strategy for sustainability in the whole industry cannot but be realistic and inevitable alternative. Presently various brands which applied the concept of sustainability exist, however they also can be said to play a part in current environmental damage by creating value aiming at only growth and pursuing short-term profit in accordance with it with simple commercial logic. Hereupon, this research aimed at eventually preparing the base of guidelines of sustainable design of space branding by newly drawing the value of sustainability in the aspect of space branding and systematically deducing design elements along with it. For this, the researcher reestablished value and design elements for sustainability in space branding by comprehending the concept of sustainability, design method of sustainable design and environmental value hidden in it, after comprehending the concept of space branding and brand value suggestion and interrelation through advanced researches. The previous studies related to the existing space branding have had mainly focused on the design of the marketing point of view to promote consumer culture. But this study can be found the meaning that new roles and methods of design in space branding from the perspective of sustainable. Now companies need to figure out a variety of strategic ways to find the right balance depending on their situation between contradictory concept of 'Consumption' and 'Sustainability'.
IEMEK Journal of Embedded Systems and Applications
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v.15
no.3
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pp.149-157
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2020
Regarding previously-developed drone simulators, it was easy to check their flight stability or controlling functions based on the condition that their weight was fixed from the design. However, the drone is largely classified into two types that is the one with the fixed weight whose purpose is recording video with camera and racing and another is whole weight-variable during flight with loading the articles for delivery and spraying pesticide though the weight of airframe is fixed. The purpose of this thesis is to analyze the structure of drone and its flight principle, suggest dynamics-model-based simulator that is capable of simulating weight-variable drone and develop the simulator that can be used for designing main control board, motor and transmission along the application of weight-variable drone. Weight-variable simulator was developed by using various calculation to apply flying method of drone to the simulator. First, ground coordinate system and airframe-fixing coordinate system were established and switching matrix of those two coordinates were made. Then, dynamics model of drone was established using the law of Newton and moment balance principle. Dynamics model was established in Simulink platform and simulation experiment was carried out by changing the weight of drone. In order to evaluate the validity of developed weight-variable simulator, it was compared to the results of clean flight public simulator against existing weight-fixed drone. Lastly, simulation test was performed with the developed weight-variable simulation by changing the weight of drone. It was found out that dynamics model controlled various flying positions of drone well from simulation and the possibility of securing the optimum condition of weight-variable drone that has flying stability and easiness of controlling.
Journal of Korean Society of Industrial and Systems Engineering
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v.39
no.1
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pp.17-24
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2016
Many organizations have transformed their business in order to survive and compete in the future. They generate projects by creating a vision, using strategies and objectives with funds aligning strategies and make efforts to complete them successfully because project success leads to business success. All projects have triple constraints such as scope, time, and cost to be completed. Project cost performance is a key factor to achieve project goals and which is mostly related with risks among various cost drivers. Projects require a cost estimation method to complete them within their budget and on time. An accurate budget cannot be estimated due to the uncertainties and risks. Thus some additional money should be funded in addition to the base budget as a contingency reserve for identified risks and a management reserve for unidentified risks. While research on contingency reserve for identified risks included in project budget baseline have been presented, research on management reserve for unidentified risks included in total project budget is still scarce. The lack of research on estimation method and role of the management reserve have made project managers little confidence to estimate project budget accurately with reasonable basis. This study proposes a practical model to estimate budgets including contingency and management reserves for not only project cost management but also to keep the balance of organization's total funds to maximize return on investments for project portfolio management. The advantages of the proposed model are demonstrated by its application to construction projects in Korea and the processes to apply this model for verification are also provided.
An experiment with completely randomized design was performed to investigate the effects of lysine and supplemented sodium on growth performance, nutrients utilization, acid-base balance and lysine arginine antagonism in broiler chicks. The experiment was carried out with 3 levels of dietary lysine (0.6, 1.2 and 1.8%) and 3 levels of sodium(0.4, 0.8 and 1.2%) for an experimental period of 7 weeks. Body weight gain of 1.2% lysine group was significantly (p<0.01) higher than that of low or high lysine group. The highest feed consumption was obtained at 1.2% lysine and 0.4% sodium supplemented level (ML-1.2) and the lowest at LL-1.2. The best feed efficiency was obtained at ML-0.8 level and the worst at LL-1.2 level. Mortalities of high (1.8%) and low (0.6%) lysine groups were significantly (p<0.05) higher than medium lysine (1.2%) group. Among the sodium levels, the mortality at 1.2% sodium supplemented level was significantly (p<0.01) different by the levels of dietary lysine. Lysine-arginine antagonism was observed in high lysine diet. Among the lysine levels, the lowest none weight and length were shown in low lysine group. Interactions between lysine and sodium were significantly (p<0.05) shown in femur weight. The levels of sodium and lysine affected significantly (p<0.01) the utilization of nitrogen, ether extract, total carbohydrate and energy.
Recently, interest in monitoring health and sports is growing because of the emphasis on wellness, which is accelerating the development and commercialization of smart clothing for biosignal monitoring. In addition to exerciseeffect monitoring clothing that tracks heart rate and respiration, recently developed clothing makes it possible to monitor muscle balance using electromyogram (EMG). The electrode for EMG have to attached to an accurate location in order to obtain high-quality signals in surface EMG measurement. Therefore, this study develops monitoring clothing suitable for different types of human bodies and aims to extract suitable range of EMG according to movements in order to develop self-fitness monitoring clothing based on EMG measurement. This study identified and attached electrodes on six upper muscles and two lower muscles of ten males in their 20s. After selecting six main motions that create a load on muscles, the 8-ch wireless EMG system was used to measure amplitude value, noise, SNR and SNR (dB) in each part and statistical analysis was conducted using SPSS 20.0. As a result, the suitable range for EMG measurement to apply to clothing was identified as four parts in musculus pectoralis major; three parts in muscle rectus abdominis, two parts each in shoulder muscles, backbone erector, biceps brachii, triceps brachii, and musculus biceps femoris; and four part in quadriceps muscle of thigh. This was depicted diagrammatically on clothing, and the EMG-monitoring sensing locations were presented for development of self-fitness monitoring.
From the Study on the Pricking blood therapy of ${\ulcorner}$HwangjeNaegyeong${\lrcorner}$, we conclude as follows; 1. The blood is apt to coagulate because of having concreteness. The blood is mainly coagulate as the collateral Meridian, minute collaterals, superficial collaterals and superficial vessels. By way of the Pricking blood therapy, the Stagnation of blood can be circulated, pathogenic factor removed, Eum-Yang(陰陽) and Gi and blood(氣血) can reach their balance. 2. To bloodletting, we should examine minutely, touch carefully with the region of the stagnated blood. After close observation of the stagnated blood, we should remove the stagnated blood up to clear. At the same time, we should observe carefully the color of the stagnated blood. 3. The acupuncture used for the Pricking blood therapy were stone needle, Bongchim(鋒鍼), Chamchim(?鍼), Pichim(?鍼) and Hochim(毫鍼) etc: After ages, from the base of Bongchim(鋒鍼), the three-edged needle became typical form. The skill of the Pricking blood therapy also became diverse, clinical application became wide. 4. After giving medical treatment with the Pricking blood therapy, reactions are various. Among them are side effects and normal effects. 5. The Pricking blood therapy is usually considered as simple sectional curing method, while it was considered as curing disease of JangBu(臟腑) or meridians in ${\ulcorner}$Hwangje-Naegyeong${\lrcorner}$. Therefore, if we sould apply the Pricking blood therapy on the basis of ${\ulcorner}$Hwangje-Naegyeong${\lrcorner}$, we should carefully understand the pattern identification according to Meridians and collaterals, and pattern identification of the Jang-Bu organs.
The cultivation of C. flavigena KIST 321, capable of utilizing cellulosic resources, was carried out in a 500 L fermentor by the batch process and the productivities of cellulosic SCP have been investigated by establishing the optimal conditions and levels of cellulosic material and others as medium components. The highest yield of the cell mass in the batch process was atttained under tile conditions at 30$^{\circ}C$, pH 7.4, 0.4∼0.6 VVM of aeration and at 130 rpm of agitation. According to the material balance of cellulosic SCP production using tile pretreated rice straw as a carbon source, more than 25 percent of rice straw on the base of drying weight was recovered in the form of cell mass.
A DE-side LBP tilting pad journal bearing of a 1-stage overhung heat-pump compressor in a propylene process exhibited abnormal high-temperature behavior. Its temperature had been relatively high at $78^{\circ}C$ from the beginning of operation. In 2014, after three years of operation, it increased suddenly and reached $103^{\circ}C$. Installing a varnish removal equipment and others managed to stabilize the temperature at $95^{\circ}C$. We undertook a troubleshooting approach for reviewing the comprehensive status and integrity of the temperature design of the bearing. We performed lubrication and heat-balance analysis, based on the design engineering data and documents supplied by the OEM. For the base design data of DE-side TPJB, evaluating the effects of key design variables on bearing metal temperature showed that firstly, increasing the bearing clearance and supply oil flow-rate, and next, changing the oil type, and finally, increasing the machined pad clearance and offset, are more effective in reducing the bearing metal temperature. Furthermore, a clarification meeting with the OEM revealed that an incorrect decision had been made to decrease the bearing clearance to eliminate the SSV harshness issue, while not maintaining a sufficient oil flow-rate. We conducted a detailed retrofit design analysis, wherein we increased the oil flow-rate and bearing clearance by decreasing the preload. We predicted that the bearing temperature would decrease to $63^{\circ}C$ from $75.7^{\circ}C$ even at the rerate condition. Finally, after installing and operating a retrofit replacement bearing in 2015, the bearing temperature stabilized at a low temperature of $65^{\circ}C$. Currently (January. 2017), two year later, the bearing metal temperature remains at $65^{\circ}C$. Therefore, we can conclude that the abnormal high-temperature behavior of the bearing has been resolved completely.
Objective : To synthesize and identify the studies that delineated the relationship between quality of life and other factors in stroke patients in South Korea. Method : Electronic databases were searched, including KISS, NDSL, National Assembly Library and KmBase. The search terms included stroke, quality of life and correlation, relationship. Only papers published in Korean were included. Results : Twelve studies, from 256 references screened, were included. All studies were non-experimental and correlational analysis. A correlation coefficient between Quality of Life and ADL .293~.622, Depression -.804~-.533, Cognition .090~.610, Quality of Sleep .107, Quality of Satisfaction .367, Fatigue -.260, MAL(Quality of Movement .208, Amount of Use .364), Family Support .824, Pain -.306, Motivation for Rehabilitation .51~.86, Balance .740, Self-efficacy .388 were analyzed respectively. Conclusion : The quality of life of stroke patients was influenced by multiple factors. Occupational therapists need to consider the functions of upper extremity and activities of daily living as well as depression, cognition, sleep, family support, pain, and self efficacy to improve quality of life of stroke patients.
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