• Journal of Korean Medical Ki-Gong Academy
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• v.10 no.1
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• pp.130-157
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• 2007

The purpose of this research is to seek for efficient health maintenance device and to suggest desirable daily habit, based on the inquiry on interrelationship between workers' daily lives and their heartbeat change level. The paper survey about general features, case history and daily habits was conducted on workers during medical examination in Jeollabukdo, and examined their change of heartbeat as well. The results of research deducted from data analysis are as follows; 1. There found very positive interrelations between time-domain analysis and frequency-domain analysis, and MHR and LF/HF ratio had negative connection with other analyses. 2. The recipient showed high time-domain analysis when they are younger, have worked shorter or have spouse, and it contributes to stable sympathetic nerve and parasympathetic nerve as it stimulates autonomic nervous system. 3. According to the result of frequency-domain analysis, recipients showed higher TP and LF when they are younger, and the highest HF when they are under 34.The level of VLF was higher for university graduates than the ones who finished high school. The recipients showed higher TP and HF when they don't have spouse, and lower TP, LF and HF when they have worked longer. 4. The level of RMSSD and TSRD was high for the people who don't have case history, and HF was high when they don't have any disease in progress. 5. According to the result concerning correlation of daily habits with time-domain analysis and frequency-domain analysis, cigarette, alcohol and sleeping hours don't affect heartbeat change, but the ones who regularly workout showed higher result in every analysis. It shows that the autonomic nervous system of recipients who regularly exercise response more actively. The result mentioned above suggests that the change of heartbeat is a direct index which shows the change of autonomic nervous system, and it depends on the exercise the most. Thus, workout is proved to be the best method in order for workers to take care of their health.

• Journal of Korean Medical Ki-Gong Academy
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• v.13 no.1
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• pp.56-76
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• 2013

Objective : The aim of this study was to find the literature basis on SuGi-therapy(手氣療法) in Donguibogam. Methods : Anma(按摩), Doin(導引), Angyo(按蹻), Anap(按壓) and Chuna(推拿), the keyword of this study, were researched, analyzed and classified in Donguibogam. Results : 1) In Donguibogam, the keyword Anma(按摩) and Doin(導引) showed up 10 and 33 times, respectively and 7 and 20 times, respectively in the body except the table of contents. In considering the meaningful cases, in short, Anma(按摩) and Doin(導引) appeared 7 and 16 times, respectively. Furthermore we could know Anma(按摩) showed up 4 times with the highest frequency in Oehyeongpyeon(外形篇), and Doin(導引) showed up 11 times with the highest frequency in Naegyeongpyeon(內景篇). 2) Anma(按摩) was mostly used as a separate word and only 2 times was "Anmadoin(按摩導引)" used. In 16 meaningful cases, Doin(導引) was used as "Doinbeop(導引法)" 14 times and 2 times was "Anmadoin(按摩導引)" used in a linked form. Among 14 times when "Doinbeop(導引法)" was referred, it was stated as "Do Doinbeop(導引法)" without any detailed explanations 2 times and it was explained about how to pose when people do Doinbeop(導引法) for prevention and treatment 12 times. 3) Reviewed in Donguibogam, Anma(按摩) and Doin(導引) were the ChoGi-therapy(調氣療法) in all. Because they include both massaging by oneself and getting a massage from someone else, they all could be 'SuGi-therapy(手氣療法)' in a broad sense. 4) In Sikjeokbyeong(息積病), the 12th chapter of Jeokchwimun(積聚文) in Japbyeongpyeon(雜病篇), Doinbeop(導引法) was referred as the treatment of Jeok(積) which belongs to obstinate and incurable diseases. This means SuGi-therapy(手氣療法) could be the basis of using widely on several incurable diseases in modern society. 5) There is few paper about SuGi-therapy(手氣療法). SuGi-therapy (手氣療法) doesn't seem to form a large part in modern Korean medicine but it is a remedy that has been together with the history of Korean medicine so long and has great therapeutic effects and usefulness. From now on, the literature and clinical study on SuGi-therapy(手氣療法) should be conducted continuously and developed for the better.

• Journal of Korean Society of Forest Science
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• v.83 no.2
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• pp.229-238
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• 1994

Issues of declining growth and vigor in forests are major concerns in many areas around the world, especially in response to predictions in the 1980s of widespread forest declines. This paper summarizes the current state of knowledge for forests in North America, Europe, and East Asia. Forest declines near point-sources of pollution(such as metal smelters) have been well recognized for a century, but evidence of widespread impacts away from point-sources remains relatively uncommon. In North America, significant forest decline has resulted from high concentrations of ozone near Los Angeles, California, and around Mexico City. Some high-elevation forests of red spruce in the eastern U.S. have declined in the past 20 years ; evidence indicates a role of low-pH fog in reducing they cold-tolerance of spruce. In Europe. most attention has focused on Norway spruce stands that developed yellow foliage, needle loss, and in some cases mortality. This syndrome appears to be related generally to an inadequate supply of magnesium, perhaps coupled with a very high supply of nitrogen. Despite localized areas that show declining trees, overall stand growth and standing biomass in Europe increased from. 1970 to 1990. Much less information is available for East Asia. Many industrialized regions in China have a pH of rain <4.5, and some connections between pollution and forest decline have been suggested. Pollution impacts on forests near cities in Korea include needle chlorosis, reduced needle retention, and declining species diversity. Overall, temperate forests show no widespread declines, and no evidence of substantial effects of pollutants on forest growth or vigor. Small areas showing declining forests may indeed demonstrate pollution impacts, and may provide cause for concerns about future impacts on larger areas.

• Applied Chemistry for Engineering
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• v.23 no.5
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• pp.450-455
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• 2012

The paper includes the utlization of an activated carbon as a potential adsorbent to remove a hazardous fluorescein dye from an aqueous solution. Batch adsorption experiments were carried out for the removal of fluorescein dyes using a granular activated carbon as an adsorbent. The effects of various parameters such as pH, amount of adsorbent, contact time, initial concentration and temperature of the adsoprtion system were investigated. The experimental results revealed that activated carbon exhibit high efficiencies to remove fluorescein dyes from the aqueous solution. The equilibrium process can be well described by Freundlich isotherm in the temperature range from 298 K to 318 K. From adsorption kinetic experiments, the adsorption process followed a pseudo second order kinetic model, and the adsorption rate constant ($k_2$) decreased with increasing the initial concentration of fluorescein. The free energy of adsorption ${\Delta}G^0$), enthalpy ${\Delta}H^0$), and entropy (${\Delta}S^0$) change were calculated to predict the nature adsorption. The estimated values for ${\Delta}G^0$ were -17.11~-20.50 kJ/mol over an activated carbon at 250 mg/L, indicated toward a spontaneous process. The positve value for ${\Delta}H^0$, 33.2 kJ/mol, indicates that the adsorption of fluorescein dyes on an activated carbon is an endothermic process.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.34 no.6
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• pp.488-493
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• 2012

Hemangioma and vascular malformation are the most common benign tumors that are caused by congenitally or traumatic events. Theses tumors represent approximately 1/3~1/4 of all hemangiomas and vascular malformations in the head and neck. There are many forms of treatment for hemangioma and vascular malformation including closed observation, surgery, radiotherapy, laser therapy, steroid therapy, compression, embolization, and sclerotherapy. Ethanolamine oleate is an unsaturated fatty acid salt that has been used as a sclerosing agent because of its excellent thrombosing properties. This paper presents 1 case of intraoral multiple venous malformations treatment with 1.25% ethanolamine oleate (3.6~9.6 mg dose) intralesionally injected for 6 to 14 weeks over 2 week intervals. After the sclerotherapy, lesions almost completely disappeared without side effects. In conclusion, sclerotherapy using ethanolamine oleate is very effective against venous malformations, and sufficiently provides alternative support for surgical and other methods.

• Journal of Radiation Protection and Research
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• v.40 no.1
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• pp.46-54
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• 2015

The thermoluminescence (TL) and optically stimulated luminescence (OSL) are commonly used to measure and record the expose of individuals to ionization radiation. Design and performance test results of a newly developed TL and OSL measurement system are presented in this paper. For this purpose, the temperature of the TL material can be controlled precisely in the range of $1{\sim}1.5^{\circ}C$ by using high-frequency (35 kHz) heating system. This high-frequency power supply was made of transformer with ferrite core. For optical stimulation, we have completed an optimal combination of the filters with the arrangement of GG420 filter for filtering the stimulating light source and a UG11 filter at the detecting window (PMT). By using a high luminance blue LED (Luxeon V), sufficient luminous intensity could be obtained for optical stimulation. By using various control boards, the TL/OSL reader device was successfully interfaced with a personal computer. A software based on LabView program (National Instruments, Inc.) was also developed to control the TL/OSL reader system. In this study, a multi-functional TL/OSL dosimeter was developed and the performance testing of the system was carried out to confirm its reliability and reproducibility.

• Korean Journal of Food Science and Technology
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• v.29 no.6
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• pp.1138-1143
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• 1997

This study was carried out to investigate the meat color and water holding capacity (WHC) characteristics of PSE, RSE (reddish-pink, soft, exudative), RFN (reddish-pink, firm, non-exudative) and DFD pork quality, also the relationship of lightness $(L^*-value)$ and WHC to drip loss were examined. When WHC in M. longissimus dorsi muscle by filter paper press method was measured at 45 min postmortem (45 min p.m.), DFD meat indicated the highest WHC, RSE and RFN pork were significantly different (p<0.05). WHC measured at 24 hr postmortem were not significantly different between RSE and RFN pork (p.0.05). Drip loss (%) were significantly different among the four quality group, but cooking loss (%) of PSE, RSE and RFN pork were not significantly different, except DFD. PSE pork indicated the lowest salt soluble protein solubility. The correlation between drip loss and $L^*-value$ was r=0.61, drip loss increased with increasing $L^*-value$. Also drip loss were moderately correlated with $WHC_{4.5\;min\;p.m.}$ (r=-0.47), with $WHC_{24\;hr\;p.m.}$ (r=-0.52). When drip loss was predictable from $L^*-value$ and WHC, $L^*-value$ was superior to evaluation by WHC.

• Korean Journal of Food Science and Technology
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• v.37 no.2
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• pp.206-213
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• 2005

Antibacterial, antifungal, anticancer and angiotensin-converting enzyme (ACE) inhibitory activities of water and 70% ethanol extracts of 32 medicinal herbs species were investigated. Terminalia chebula extracts showed strong antibacterial activities. Ethanol extract of Cinnamomum cassia showed good antifungal activity. ACE inhibitory activities or P. corylifolia water extract and Fraction I of P. corylifolia water extract were 65.2 and 81.8%, respectively. Cytotoxicity of ethanol precipitate fraction obtained from water extract of Eugenia caryophyllata was highest.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.13 no.8
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• pp.819-826
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• 2002

In this paper, the performance of Au / $Ba_{0.5}Sr_{0.5}TiO_3$ (BST) / Magnesium oxide (MgO) two-layered electrically tunable band-pass Filters (BPFs) is demonstrated. The devices consist of microstrip, coplanar waveguide (CPW), and conductor-backed coplanar waveguide (CBCPW) structures. These BST thin film band-pass filters have been designed by the 2.5 D field simulator, IE3D, Zeland Inc., and fabricated by thin film process. The simulation results, using the 2-pole microstrip, CPW, and CBCPW band-pass filters, show the center frequencies of 5.89 GHz, 5.88 GHz, and 5.69 GHz, and the corresponding insertion losses are 2.67 dB, 1.14 dB, and 1.60 dB, with 3 %, 9 %, and 7 % bandwidth, respectively. The measurement results show the center frequencies of 6.4 GHz, 6.14 GHz, and 6.04 GHz, and their corresponding insertion losses are 6 dB, 4.41 dB, and 5.41 dB, respectively, without any bias voltage. With the bias voltage of 40 V, the center frequencies for the band-pass filters are measured to be 6.61 GHz, 6.31 GHz, and 6.21 GHz, and their insertion losses are observed to be 7.33 dB, 5.83 dB, and 6.83 dB, respectively. From the experiment, the tuning range for the band-pass filters are determined as about 3 % ~ 8 %.

• The Journal of Korean Academy of Prosthodontics
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• v.35 no.3
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• pp.566-576
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• 1997

This study was performed to evaluate the tensile strength of solder joint in titanium and the wettability of 14K gold solder on titanium. Two pieces of titanium rod 30 mm in length and 3mm in diameter were butt-soldered with a 14K gold solder using the electric resistance heating under flux-argon atmosphere, the infrared heating under argon atmosphere, and the infrared heating under vacuum-argon atmosphere. A tensile test was performed at a crosshead speed of 0.5 mm/min, and fracture surfaces were examined by SEM. To evaluate the wettability of 14K gold solder on titanium, titanum plates of a $17{\times}17{\times}1mm$ were polished with #80-#2000 emery papers, and the spreading areas of solder 10 mg were measured by heating at 840 * for 60 seconds. The solder-matrix interface regions were etched by the solution of 10% KCN-10% (NH4)2S2O8, and analyzed by EPMA. The results obtained were summarized as follows ; 1. The maximum tensile strength was obtained when the titanium surface was polished with #2000 emery paper and soldered using the electric resistance heating under flux-argon atmosphere. Soldering strengths showed the significant difference between the electric resistance heating and the infrared heating(p<0.05). 3. The fracture surfaces showed the aspect of brittle fracture, and the failure developed along the interfaces of solder-matrix reaction zone. 4. The EPMA data for the solder-matrix interface region revealed that the diffusion of Au and Cu occurred to the titanium matrix, and the reaction zone showed the higher contents of Au, Cu and Ti than others.