• The Journal of Korean Obstetrics and Gynecology
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• 제22권1호
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• pp.203-230
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• 2009

Purpose: In order to know therapies used in the field of Obsterics & Gynecology of Oriental medicine. Methods: This survey investigated papers about clinical study, literature investigation for therapeutic methods and treatment reports published from 1999. 2${\sim}$2008. 11. Results: In the clinical studies, acupuncture is more frequently used than herbal medicine. But in the treatment reports, herbal medicine is most frequently used except some cases. Besides acupuncture and moxibustion was used frequently. In the treatment reports various acupuncture methods were used except vaginal bleeding or abdominal pain cases. Whole body acupuncture was used mainly. Pharmacopuncture, Sa-am Acupuncture, auricular acupuncture was also used frequently. And Dong's acupuncture, Hwa acupuncture was used sometimes. Moxibustion was tend to be used for dysfunctional uterine bleeding, menopausal disorder, urinary incontinence, vaginal bleeding or abdominal pain during pregnancy period, hyperemesis, recurrent miscarriage, postpartum disease, lochiorrhea. Also other treatment methods was used such as external therapy, aromatherapy, herbal retention enema, fumigation, electric lipolysis acupuncture, Chuna manual medicine, obesity management, acupuncture at uterus cervix, magnetic innervation therapy, exercise, cupping and physical therapy. Conclusion: These results suggests that acupuncture, moxibustion and herbal medicine are most frequent therapy in the field of Obsterics & Gynecology of Oriental medicine. And other therapy are used such as external therapy, aromatherapy, herbal retention enema, fumigation and so on.

• Korean Journal of Heritage: History & Science
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• 제53권3호
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• pp.4-23
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• 2020

In this article, the excavation and research of cultural assets were set as a process and the improvement measures were considered. To this end, we examined the process of excavating cultural assets to diagnose problems, suggested changes in the format of reports and the establishment of a database, and drew up improvement models for Silla's ancient tombs and research. The problems of the current process of excavating cultural assets are as follows. First, investigation and research fail to integrate and merely comprise 'examination as an administrative procedure' or 'investigation for the sake of investigation', which ultimately hamper research and achievement. Second, there are differences in the composition or description of the report by surveyors or excavation agencies, which make it difficult to integrate data at a higher level. Third, the current form of reporting remains in analog format such as books and PDFs, which not only reduces continuity and efficiency to the research phase, but also lags behind the rapidly changing times. We believe that the improvement of these problems should be achieved by computerizing reports, converting them into digital formats, and establishing them in a database. First, regarding the transition to report format, it was pointed out that the form of excavation data, the final stage of the excavation process, remains analog and the improvement model was presented from the perspective of linking it to excavation and research, and the justification was emphasized through comparison with other cases. Second, the database reviewed the build model for Silla tombs. To this end, the purpose and expected effects, targets, progress, attributes, categories, and interfaces were examined.

• Journal of Environmental Impact Assessment
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• 제15권5호
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• pp.289-297
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• 2006

The study investigates the problems of silt protector used for mitigation measure of suspended sediments (SS) during coastal construction and provides their improvements based on the field investigation and analysis of the environmental impact assessment reports for the coastal development projects of Korea. The field investigation along west, east and south coasts of Korea reveals a variety of problems in the installation and management of silt protector solely used for the SS mitigation in Korea. Major problems include installation itself, low cost and quality of silt protector, and maintenance. These problems superimpose the effectiveness of silt protector in mitigating coastal environment impact. The present study provides the specific guideline on the project type needed for the installation of silt protector, installation standard and planning, maintenance and management. The study also suggests new mitigation options such as environmental window to limit the construction period and environmental dredger to compensate for the deficits of silt protector.

• Korean Journal of Environmental Agriculture
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• 제27권3호
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• pp.285-291
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• 2008

A global binding agreement was adopted with the leading of United Nations Environment Program (UNEP) on May 22, 2001 in Stockholm to regulate the production and distribution on persistent organic pollutants (POPs). The agreement took effectuation with the ratification of 59 countries from the approval of 151 countries on May 17, 2004. After the approval on October 4, 2001, South Korea performed systematical investigation on POP-related substances such as chlordane, dichloro diphenyl trichloroethane (DDT), hexachlorobenzenes (HCB), heptachlor, polychlorinated biphenyls (PCBs) to get ready for the ratification of the convention with country-specific exemption. The domestic distributions of those chemical substances have been officially prohibited since the late 1960s to the early 1980s. Although there were occasional reports for the detection of some of those chemical substances, those performed minute signification in their existence in the environment. A series of investigation with documentary examination and fact-finding survey showed the possibility for the ratification on the convention without country-specific exemption.

• Journal of Electrical Engineering and Technology
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• 제2권3호
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• pp.300-305
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• 2007

This paper reports an investigation of overvoltages caused by ferroresonance in the distribution system, which consists of a bank of open-delta single-phase voltage transformers. The high voltage sides of the voltage transformer are connected to the distribution system via three single-phase fuse cutouts. Due to the saturation characteristic of the transformer cores, ferroresonance can occur in the condition that the transformer is energized or deenergized with single-phase switching operation of the fuse cutouts. The simulation tool based on EMTP is used to investigate the overvoltages at the high side of voltage transformer. Bifurcation diagrams are used to present the ferroresonance behavior in ranges of different operating conditions. The simulation results are in good agreement with the results from the experiment of 22 kV voltage transformers. The mitigation technique with additional damping resistors in the secondary windings of the voltage transformers will be introduced. Brief discussion will be made on the physical phenomena related to the overvoltage and the damage of voltage transformer.

• BMB Reports
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• 제33권3호
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• pp.228-233
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• 2000

The steady-state investigation of the mechanism of Dhydroxyisovalerate dehydrogenase was performed in order to understand this type of kinetic patterns. The initial velocity was measured with various amounts of both substrates, NADPH and 2-ketoisovalerate. Double reciprocal plots gave patterns that conversed on or near the abscissa. Binding studies indicated that NADPH bound first to the enzyme. The product $NADP^+$ was found to be a competitive inhibitor with respect to NADPH at a constant concentration of 2-ketoisovalerate. However, it showed noncompetitive inhibition against 2-ketoisovalerate at a fixed amount of NADPH. Another product, D-hydroxyisovalerate, was a non-competitive inhibitor versus NADPH and 2-ketoisovalerate at constant levels of 2-ketoisovalerate and NADPH, respectively. These results were comparable with an ordered bi-bi mechanism, in which NADPH bound first to the enzyme, followed by the binding of 2- ketoisovalerate. $NADP^+$ is the last product to be released. The ordered reaction manner of D-hydroxyisovalerate dehydrogenase from 2-ketoisovalerate to D-hydroxyisovalerate allows the accurate regulation of valine metabolism and it may lead to the regulation of total biosynthesis of enniatins in the Fusarium species.

• Structural Engineering and Mechanics
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• 제67권1호
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• pp.45-52
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• 2018

Several techniques have been developed for shear strengthening of reinforced concrete (RC) members by using fiber reinforced polymer (FRP) composites. However, debonding of FRP retrofits from concrete substrate still deemed as a challenging concern in their application which needs to be scrutinized in details. As a result, this paper reports on the results of an experimental investigation on shear strengthening of RC beams using near surface mounted (NSM) FRP reinforcing bars. The main objective of the experimentation was increasing the efficiency of shear retrofits by precluding/postponing the premature debonding failure. The experimental program was comprised of six shear deficient RC beams. The test parameters include the FRP rebar spacing, inclination angle, and groove shape. Also, an innovative modification was introduced to the conventional NSM technique and its efficiency was evaluated by experimental observation and measurement. The results testified the efficiency of glass FRP (GFRP) rebars in increasing the shear strength of the test specimens retrofitted using conventional NSM technique. However, debonding of FRP bars impeded exploiting all retrofitting advantages and induced a premature shear failure. On the contrary, application of the proposed modified NSM (MNSM) technique was not only capable of preventing the premature debonding of FRP bars, but also could replace the failure mode of specimen from the brittle shear to a ductile flexural failure which is more desirable.

• Transactions of the Korean Society of Mechanical Engineers
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• 제17권7호
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• pp.1649-1657
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• 1993

This paper reports on a proof-of-concept experimental investigation focused on evaluating the vibration characteristics and control of smart hollow cantilever beams filled with an electro-rheological(ER) fluid. The beams are considered to be of uniform viscoelastic materials and modelled as a viscously-damped harmonic oscillator. Electric field-dependent natural frequencies, loss factors and complex moduli are evaluated and compared among three different beams : two types of different volume fraction of ER fluid and one type of different particle concentration of ER fluid by weight. Modal characteristics of the beams are observed in both the absence and the presence of electric potentials. It is also shown that by constructing active control algorithm the removal of structural resonances and the suppression of tip deflection are obtained. This result provides the feasiblility of ER fluids as an active vibration control element.

• The Journal of Korean Medicine
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• 제15권2호
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• pp.132-142
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• 1994

Paraquat has been widely used as a herbicide in Korea since 1970. Human ingestion results in transient impairment of liver and kidney function and a characteristically respiratory failure with a high mortality rate. Clinical investigation and Oriental Medical Treatment were done on 3 cases of paraquat poisoning admitted to the department of 1st Internal Medicine. Kyung San University Oriental Medical Hospital from August 1991 to December 1992. and following results were obtained. The symptoms of paraquat poisoning can be regarded as Sim hua chi song(心火熾盛), Kan hua sang yom(肝火上炎). um hu hua wang(陰虛火旺), Kan tam sup yol(肝膽濕熱), Yang myong yol tok(陽明熱毒) in Oriental Medicine. and the principle of treatment for paraquat poisoning can be applicable to Chong yol Ii sop(淸熱利濕), Chong yol hae tok(淸熱解毒). Sa ha hae tok(瀉下解毒). Ja um kang hua(滋陰降火) and so on. Three cases were treated by HuangYonHaeTokTang(黃蓮解毒湯) and KamDuTang(甘豆湯): all of them have survived without complications. According to the result above, it suggests that determination of treatment based on the differentiation of symptoms and signs(Pyon jung si chi ;辨證施治) of Oriental Medicine may prove to be helpful in saving lives of patients with paraquat poisoning.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• 제20권10호
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• pp.41-46
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• 2006

Generation of electricity using wind power has received considerable attention worldwide in recent years. In order to investigate the impacts of the integration of wind farm into utilities' network, various studies have been investigated. One such impact is related to the Critical Clearing Time (CCT) of wind power generation system. This paper reports investigation into the factors that influence the transient behavior of the wind power generation system following network fault conditions. It is shown that CCT can be affected by various factors contributed by the network. Such factors include capacity of wind power, power factor, the length of the interfacing line, etc. This investigation is conducted on a simulated grid-connected wind farm using Digsilent Power Factory.