• Journal of Power System Engineering
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• v.17 no.2
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• pp.38-45
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• 2013

In this study, for carrying out the spray and combustion experiment using a Common Rail Direct Injection(CRDI) system, the controller was fabricated to drive a high speed camera, a injector and a laser beam sequentially at a low cost. CB280 module of one-chip micro processer was used for the controller. In order to confirm responsibility and utility of the controller, the current drive performance, the spray behavior and the injection rate were tested and analyzed under various experimental conditions. As this research results, we found that the fabricated controller was able to control the devices for the spray experiment precisely with the input value in program and it had the dynamic load responsibility and repetition. Also, we found that the injection rates of our experimental results were higher than those of others at the same injection pressure and the controller connected with the laser system and the data acquisition system had validity for carrying out the spray visualization experiment.

• The Journal of Korean Academy of Prosthodontics
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• v.25 no.1
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• pp.161-179
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• 1987

To study the mechanical behaviors of the margins of porcelain-fused-to-metal crown on the posterior teeth, 5 types of margins on the lower first molar were chosen, and then the finite element models were constructed. 50kg forces were applied to the porcelain on the axial wall supported by the metal vertically. The displacements and stresses of the porcelain-fused-to-metal crown were analyzed to investigate the influence of the type of margins. The results were as follows; 1. High tensile stresses were exhibited on the porcelain of the portion of the coronal line angle insufficient metallic support. 2. In case metal coping had a good supporting form to vertical force, uniform compressive stresses were exhibited on their supporting form. 3. Tensile stresses in the inframetallic margin on the series of the shoulder with a bevel margins were decreased in the bevel portion. 4. Principal stresses on the metal of the chamfer marginal portion were decreased comparing with the series of the shoulder margins. 5. The noticeable compressive stress gradients were exhibited between axial cement layer and metal on the series of the shoulder margins. 6. The principal stresses on the marginal cement layer were higher than that of the occlusal surface and axial wall.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.9 no.2
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• pp.1-9
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• 2014

Objectives : Many studies are being done in the method of experimental chuna science in China. The aim of this review is to understand and study the methods of experimental chuna science, focusing on the effects of chuna on circulatory system. Methods : We reviewed "實驗推拿學" and Chinese journals were searched using China National Knowledge Infrastructure(CNKI). Korean journals were searched using 3 Korean web databases(OASIS, NDSL, RISS). Results : By experimental chuna science, effect of chuna on blood pressure, cardiovascular system, hemorheologic system, blood flow velocity, circulation and lymphatic system were proved. Conclusions : Experimental chuna science is necessary for improvement of chuna to a higher level. In Korea, not many experimental studies are being done, especially in chuna and it has very narrow target diseases. For this reason we need to learn and adapt the methods of experimental chuna science of China.

• Journal of Korean Society of Rural Planning
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• v.19 no.1
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• pp.179-188
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• 2013

This study has been performed with the purpose of making Rural Village Development Project Landscape Plan in which landscape characteristics in rural villages are reflected so that landscape in the medium to long term shall be established and managed. The issue that has been brought up is that procedures of Rural Landscape Plan and Rural Village Development Project Landscape Plan have been focused on facilities. The study carries out resources survey in agriculture, daily life and history and culture to make Rural Village Development Project Landscape Plan in O-chon district. Through landscape evaluation map participated by local residents, landscape management areas which they can form and manage have been established. The study also suggests Projects and guidelines appropriate to management areas. The study has a different signification from the existing Rural Village Development Project Landscape Plan which is fundamentally devoted to specific projects. The study shows Landscape Plan in the medium to long term and suggests guidelines available to be used by residents.

• International Journal of Advanced Culture Technology
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• v.3 no.2
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• pp.77-86
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• 2015

In this paper there is an overview of some standards and security models which are implemented in such an IP-based and heterogeneous networks and we also present some security models in an open environment and finally we obtain that as a result of the nature of 4G networks there are still more security holes and open issues for expert to notice. Our survey shows that a number of new security threats to cause unexpected service interruption and disclosure of information will be possible in 4G due mainly to the fact that 4G is an IP-based, heterogeneous network. Other than that, it tells about the security issues and vulnerabilities present in the above 4G standards are discussed. Finally, we point to potential areas for future vulnerabilities and evaluate areas in 4G security which warrant attention and future work by the research and advanced technology industry.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.8 no.2
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• pp.47-56
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• 2013

Objectives : Many studies are being done in the method of experimental chuna science in China. The aim of this review is to understand and study the methods of experimental chuna science, focusing on the effects of chuna on nervous system. Methods : We reviewed "實驗推拿學"(experimental tuina science) and Chinese journals were searched using China National Knowledge Infrastructure(CNKI). Korean journals were searched using 3 Korean web databases(OASIS, NDSL, RISS). Results : By experimental chuna science, analgesic effect of chuna, therapeutic action of chuna on stroke, therapeutic action on polio, effect of modulating autonomic nerves of chuna and effect of modulating thermoregulatory centers of chuna were proved. Conclusions : Experimental chuna science is necessary for development of chuna to a higher level. In Korea, not a lot experimental studies are being done, especially in chuna. For this reason we need to learn and adapt the methods of experimental chuna science of China.

• Proceedings of the KSR Conference
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• 2005.11a
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• pp.848-853
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• 2005

The objective of this paper is to address to the providing an adequate noise and vibration solution, required for High Speed Rail while maintaining the stability criteria of the ChonAn station structure, the first constructed in Korean High Speed Railway. The significant acoustic pressure level will be induced by the high speed trains passing-by. Therefore, the high level study of this case is necessary. The acoustic pressure level of 85 dB(A) inside the ChonAn station is expected, and the spaces below concrete slab are not suitable for commercial purpose, thus installation of filtering systems (spring boxes containing viscous dampers, ballast mats and acoustic shield) are provided to reduce the effect of the noise and vibration to acceptable level of 55 dB(A). But, a major drawback of application of the previously conducted experimental results was that the actual effect of installation of filtering system was never been validated. Therefore, the acquisition of noise and vibration on the present structure were obtained and compared to the computer simulations. These predicted the behavior of the station reasonably well. Also, the installation of filtering systems gave the superior reduction on noise and vibration. This application is successfully adapted without scarifying stability criteria related to the structural stability including excessive deformations or displacements. Three traffic operation safety limits: deck vertical acceleration, deflection of the structure, and longitudinal displacement of the slab were satisfactory.

• Journal of Pharmacopuncture
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• v.14 no.1
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• pp.35-49
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• 2011

Objectives: The aim of this experiment is to know about Effect of pulse-wave factors in Middle Aged Women by Mountain Cultivated Ginseng Pharmacopuncture. Methods: First 20 Middle Aged women are diagnosed by pulse diagnosis, and then Mountain Cultivated Ginseng Pharmacopuncture(1 injection 20cc) were injected. 30 minutes later, pulse diagnosis again performed. As a result, method of one-group pretest-posttes design were used for evaluation. Results: T(Total pulse cycle) time statistically significant increased on both left and right chon, kwan, cheok. T4 time statistically significant increased on both left and right chon, kwan, cheok. T4-T1/T indexs except left cheokmaek, Right cheokmaek observation area decreased significantly in four sites. Wm(indicating high pressure retention time) indexs increased significantly in the five sites were observed except right chon maek. Conclusions: Effect of pulse-wave factors in Middle Aged Women by Mountain Cultivated Ginseng Pharmacopuncture increased T, T4, Wm and decreased T4-T1/T indexs. The results of this experiment, Mountain Cultivated Ginseng Pharmacopuncture induced to increase the Pulse-wave's stability and strength.

• The Journal of Korean Obstetrics and Gynecology
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• v.25 no.4
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• pp.125-133
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• 2012

Objectives: Postpartum thyroiditis patient's symptoms are very similar to symptoms of postpartum disease which can be called sanhupung. This study is to report the effect of herbal medicine on sanhupung patient diagnosed of postpartum thyroiditis. Methods: We treated a 32-year-old female patient who had symptoms of postpartum thyroiditis and sanhupung with Jaeumganghwa-tang and Jayumkeonbi-tang. Results: After herbal medicine treatment the symptoms of postpartum thyroiditis such as general weakness, hot flush on the palms and soles of the feet, fever pattern of malaria and symptoms of sanhupung such as arthralgia, depression, imsomnia, sweating were improved. Conclusions: This case report shows that herbal medicine can be used to treat patient with postpartum thyroiditis and Jaeumganghwa-tang, Jayumkeonbi-tang is effective for mitigating the symptoms of postpartum thyroiditis. However, patient is still in thyroxine treatment, and additional care is required.

• The Journal of Korean Obstetrics and Gynecology
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• v.28 no.1
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• pp.73-84
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• 2015

Purpose: The purpose of this study is to analyze the characteristics of the pulse energy in women who complain of climacteric and menopausal symptoms. Methods: We analyzed the values of pulse energy on 45 climacteric and menopausal women. The patients' symptoms were assessed by Kupperman's index and Menopause Rating Scale (MRS). Statistical analysis was performed using SPSS 18.0 for window program, one way ANOVA, pearson correlation coefficient. Results: The results were as follows. 1. The pulse energy of the Left Chon was significantly largest and Left Cheok was comparatively smallest. 2. There was no statistically significant correlation in the pulse energy of Left Chon minus Left Cheok, Kupperman's index, MRS total sum score. Conclusions: The results suggest that the pulse energy of the Left Chon tends to be increased and Left Cheok decreased in climacteric and menopausal women.