• 대한한방소아과학회지
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• 제18권1호
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• pp.93-104
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• 2004

Objectives: Transverse myelitis is a rare neurological disorder that is part of a spectrum of neuroimmunologic diseases of the central nervous system. A patient was hospitalized with intestinal pseudoobstruction(poor oral feeding, vomiting, abdominal pain, constipation) secondary to Transverse myelitis. We treated her with Oriental medical approach and obtained satisfactory result. Methods: The Herbal medicine(Bihwa-eum), Acupuncture, Moxibustion therapy were applied for improving the deficiency of energy of the spleen and stomach, regulate the flow of vital energy. Results: After treatments, Patient's vomiting frequency is decreased and abdominal pain is improved and oral feeding is available. She gains in weight continuously. Conclusion: The authors thought that Bihwa-eum is effective to vomiting and abdominal pain due to intestinal pseudoobstruction. The more study is needed.

• 대한한의학원전학회지
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• 제26권4호
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• pp.325-339
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• 2013

Objective : The Blood-Letting Therapy which gives an acupuncture and lets blood on the surface of body by using various needles is quite effective in chronic disease. SoMoon lays the theoretical foundation of Korean Medicine. This article could help improve the understanding of the blood-letting therapy in SoMoon and also paves the way for applying the therapy to treatment of the various diseases. Method : This study selected the texts correlated to indications of blood-letting, after collecting the sentences from SoMoon with the search words 'blood', 'stagnated blood' and so on. Conclusion : This study on the Blood-Letting Therapy includes the way and location to give an acupuncture, the general rules of prescription, needles, amount of blood-letting, running mechanism and attentions. The purpose of Blood Letting Therapy is to treat and cure the disease through Improve vital energy and Expel harmful energy by improving meridian function and harmonizing Um-Yang and Ki-Blood.

• ETRI Journal
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• 제42권3호
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• pp.351-365
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• 2020

Directional sensor networks (DSNs) can significantly improve the performance of a network by employing energy efficient communication protocols. Neighbor discovery is a vital part of medium access control (MAC) and routing protocol, which influences the establishment of communication between neighboring nodes. Neighbor discovery is a challenging task in DSNs due to the limited coverage provided by directional antennas. Furthermore, in these networks, communication can only take place when the beams of the directional antennas are pointed toward each other. In this article, we propose a novel multiple token-based neighbor discovery (MuND) protocol, in which multiple tokens are transmitted based on an area exploration algorithm. The performance of the protocol is evaluated using the Cooja simulator. The simulation results reveal that the proposed MuND protocol achieves lower neighbor discovery latency, with a 100% neighbor discovery ratio, and has a relatively low communication overhead and low energy consumption.

• 대한한의학회지
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• 제27권1호
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• pp.155-164
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• 2006

Objectives : The aim of this study is to review allergic rhinitis and to help make full use of oriental medical therapy in this disease. Methods : We investigated the published papers with the key word 'allergic rhinitis' and refered to several important old records Results : 1. Allegic rhinitis in Oriental Medicine is known as bigu, bunche and the main symptoms is rhinorrhea, sneezing, nasal obstruction. 2. The cause of allergic rhinitis in Oriental Medicine is dysfunctions of the spleen, lung and kidney systems bring weakness to the vital energy(正氣) making wind and cold(風寒邪氣) energy easy to intrude. 3. Determination of the patient's constitution and understanding of the weakness of spleen, lung and kidney systems helps improve the treatment rate, it is used to treat allergic rhinits with herbal medicines, acupunctures and so on. 4. In acupuncture therapy, the mainly used acupuncture points are 迎香(younghyang), 印堂(yindang), 鼻通(bitong), 上星(sangsung), 合谷(habgouk). Conclusions : The Oriental Medicine treatment principal of rhinitis is strengthening the body resistance and eliminating the pathogenic factors according to the individual characters of each patients and the symptoms.

• 대한한방내과학회지
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• 제19권1호
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• pp.73-81
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• 1998

This study was performed on the basis of clinical consideration about patient who has hepatoma, cholangiocarcinoma and pancreatic cancer. Cancer has gradually increased morbidity and mortality all over the world including Korea. Western medicine has treated with surgical therapy, chemotherapy, radiotherapy and immunotherapy, but has not obtained outstanding results and has a difficulty due to side effects by those therapies. In this study, we recognized that symptom including pain by cancer are rapidly decreased with oriental medicine treatment. Oriental medicine treatment is applied throughly on the basis of the oriental medicine principle and the prescrptions were used Bulwhankumjunggisan(不換金正氣散), Sojukbaekchulsan(消積白朮散) Banhabackchulchunmatang(半夏白朮天麻湯). The communitial effect of those prescriptions are invigorating the spreen and benefiting vital energy(健脾益氣), supporting healthy energy to eliminate evils(扶正祛邪) and those treatments are corresponed with traditional oriental treatment principle. Also we can know this patient has a little improvement in the general test including biochemistry, blood test, urine analysis and etc. in spite of outstanding improvement of patient's symptom on administration of oriental medicine. According to the above results, though we has not got satisfaction in getting rid of cancer completely on administration of oriental medicine, it is helpful in decreasing symptoms including pain by cancer and in improving quality of life of patient and in improving quality of patient life.

• Journal of Communications and Networks
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• 제14권6호
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• pp.629-639
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• 2012

A challenge faced by smart grid systems is providing highly reliable transmissions to better serve different types of electrical applications and improve the energy efficiency of the system. Although wireless networking technologies can provide high-speed and cost-effective solutions, their performance may be impaired by various factors that affect the reliability of smart grid networks. Here, we first suggest the use of IEEE 802.11s-based wireless LAN mesh networks as high-speed wireless backbone networks for smart grid infrastructure to provide high scalability and flexibility while ensuring low installation and management costs. Thereafter, we analyze some vital problems of the IEEE 802.11s default routing protocol (named hybrid wireless mesh protocol; HWMP) from the perspective of transfer reliability, and propose appropriate solutions with a new routing method called HWMP-reliability enhancement to improve the routing reliability of 802.11s-based smart grid mesh networking. A simulation study using ns-3 was conducted to demonstrate the superiority of the proposed schemes.

• JSTS:Journal of Semiconductor Technology and Science
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• 제16권4호
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• pp.451-462
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• 2016

Photovoltaic energy conversion becomes main focus of many researches due to its promising potential as source for future electricity and has many advantages than the other alternative energy sources like wind, solar, ocean, biomass, geothermal etc. In Photovoltaic power generation multilevel inverters play a vital role in power conversion. The three different topologies, diode-clamped (neutral-point clamped) inverter, capacitor-clamped (flying capacitor) inverter and cascaded h-bridge multilevel inverter are widely used in these multilevel inverters. Among the three topologies, cascaded h-bridge multilevel inverter is more suitable for photovoltaic applications since each pv array can act as a separate dc source for each h-bridge module. This paper presents a single phase Cascaded H-bridge five level inverter for grid-connected photovoltaic application using sinusoidal pulse width modulation technique. This inverter output voltage waveform reduces the harmonics in the generated current and the filtering effort at the input. The control strategy allows the independent control of each dc-link voltages and tracks the maximum power point of PV strings. This topology can inject to the grid sinusoidal input currents with unity power factor and achieves low harmonic distortion. A PID control algorithm is implemented in Arm Processor LPC2148. The validity of the proposed inverter is verified through simulation and is implemented in a single phase 100W prototype. The results of hardware are compared with simulation results. The proposed system offers improved performance over conventional three level inverter in terms of THD.

• 한방안이비인후피부과학회지
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• 제11권1호
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• pp.82-98
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• 1998

In the literatual studies on the causes and treatments of the melasma, the results were as follows. 1. Melasma is the blackish patch on the face, is belong to the cartegory of the 'Myunjin(面塵)', 'Myunganzung(면간증)', 'Jakban(雀斑)' etc. in Oriental medicine 2. Melasma is deeply associated with Yangming channel in Meridian, with the spleen, stomach, heart and kidney in Viscera. 3. The pathogenic factors of Melasma is divided five parts. One is insufficient of Yangming's energy in Neijing(內經). Two is incoordination between vital energy and blood caused by wind-evil and phlegm-retention syndrome. Three is anxiety impairing the spleen. Four is kidney-asthenia and fire-hyperactivity. Five is heat-evil. 4. In the treatments of Melasma, Sthenia-syndrome was used cooling blood and activating blood circulation, or dispelling wind-evil and promoting meridian, or expelling fire-evil and removing toxic material etc. Asthenia-syndrome was used invigorating the liver and kidney, or nourishing yin and keeping fire downwards etc. 5. Melasma is concerned with sun-light, is mostly seen in female. 6. In the prescription of Melasma, it was used Jujesamultang(酒製四物湯加減), Okyong -san(玉容散), Chunghwasungitang(沖和順氣湯), Okyongseosisan(玉容西施散), Yukmiji-hwanghwan(六味地黃丸) etc.

• 방사선산업학회지
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• 제9권4호
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• pp.181-185
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• 2015

Today the biosafety evaluation, a common problem of vital importance, is based on internationally proved test-systems, standards and techniques. The paradigm of biosafety includes multidisciplinary approach, a combination of physical, chemical and biological tests to monitor the environmental level of pollutants and needs to be improved by modern approaches. The genetic risk of environmental pollutions has long been studied by many researchers. In this study, used was the known sensitive plant test-system, clones of plant Tradescantia (spiderwort) able to detect gene mutations (frequency of mutational events and formation of micronuclei) in combination with chemical and, in some instances, with radiological measurements. In addition, male gametophyte generation of fruit trees was applied as bioindicators of genotoxicity. The obtained results did not show any significant increase along with wind direction. As for the male gametophyte assay, the fertility of the investigated fruit-trees near to NPP did not significantly differ from that of the control point. The influence of the NPP on the male generative system of the investigated taxa of fruit trees for the investigated year was not revealed. The system described needs to be expanded by species of interest (human) as there is a difficulty to transfer the revealed dose correlations to humans. The development of this idea includes various levels: population (epidemiological studies), individual, cellular, molecular (DNA), etc.

• 동위원소회보
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• 제21권3호
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• pp.46-60
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• 2006

In recent years the progress of nuclear medicine advanced dramatically in imaging and targeted radionuclide therapy is able to open op exciting perspectives as standard diagnostic and therapeutic modalities, complementing conventional modalities. Positron emission tomography/computed tomography (PET/CT) technology with FDG has been developed clinically in less than 10 years as a routine standard in oncological imaging, including a number of other fluorinated radiopharmaceuticals being evaluated for their ability to complement FDG. However, the limitation of FDG-PET such as non-specific uptake and its short half-life is not compatible with the time necessary for optimal tumour targeting. Therefore, a development of innovative positron-emitting radionuclides with half-lives longer than 10 h is needed. For therapeutic applications, the injection of higher activities is required to reach efficient adsorbed doses in radioresistant solid tumours, while limiting the irradiation of vital organs. In this application, the longer half-life of radiolsotopes are more fit well for radionuclide therapy. To achieve this, researches have to be carried in a largor spectrum of radionuclides for diagnosis and therapy. In the context of rapidly growing nuclear medicine and strong demanding innovative radionuclides, a high-energy (100 MeV), high-intensity (-mA) accelerator with proton (PEFF at KAFRI). will be operating in 2011. The priorities of PEFP will include supporting the nuclear medicine research community by providing those radionuclides with current limited availability by means of a high-energy, high-intensity accelerator.