• Journal of Environmental Health Sciences
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• v.23 no.1
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• pp.50-54
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• 1997

The removal efficiency of nutrient was investicated by using Glycine max Meer seedling. After budding, Glycine max Merr was raised at darkness for 4 days. During cultivation, the removal efficiency of $NO_2-N+NO_3-N$ was up to 90% with initial concentration of 20-100 ppm. The removal efficiency of PO$_4$-P was up to 80% with initial concentration at 30 ppm, but it was down to 22% and 27% at 40 ppm and 50 ppm. When the removal efficiency of nutrient was compared with alternating 12 hours' light and darkness, the removal efficiency of NO$_2$-N + NO$_3$-N was up to 90% at below 60 ppm. It was not different from each other. But it was particularly low about 62% and 34% at 80 ppm and 100 ppm in alternating 12 hours' light. The removal efficiency of PO$_4$-P was low at alternating 12 hours' light between 10-50 ppm on the whole range. The neutralizing capacity of pH was shown in acidity and alkalinity except strong acidity(below pH 3). The initial pH was neutralized at 6.0-7.7 of pH after 4 days. Particularly, Glycine max Meer seedling that was difference from other water plants, was shown the neutralizing capacity in strong alkalinity.

• Journal of the Korean housing association
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• v.5 no.1
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• pp.1-7
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• 1994

The purpose of this study was to investigate the difference in the trend of the study of elderly housing for the suggestion of the direction in Korea. This study was the first series about the study of elderly housing and analysed the 164 pieces of researches in Japan. The data were analysed classification with contents first, then examined the class in chronological order, and suggest the trend in the study of elderly housing in Japan. 1. The study of elderly facilities was reported the highest interest and was completed in the latter half of the 1980s except the payment elderly home in Japan. 2. Their second interest was the study of general elderly housing. Rural elderly facilities as a local elderly housing were researched frequently. 3. The study of housing for three generation was studied much in early 1980s, but decreased concerns these days. The study of housing for the elderly was studied the latter of 1980s and concerns were sustained. 4. Trend of the study of elderly housing was classified as follows; 1950s was the stage of unconsciousness, 1960s was the stage of sprout, 1970s was the stage of blossom, 1980s was the stage in full bloom and then the study was peak in 1986 and slowly decrease the concern. 5. In 1990s the study of elderly housing was moved into elderly facilities in a consumer's view and older people's life their family relation.

• Journal of Chest Surgery
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• v.13 no.2
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• pp.134-137
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• 1980

This represents a case report of the retained polyethylene catheter fragment in superior vena cava. A 39 year old male was admitted to this Korea University Hospital a short time after compression wound on abdomen with heavy cement material in emergency room, a polyethylene catheter was introduced into the right subclavian vein through a needle. But when the polyethylene catheter was attempted to withdraw the catheter was severed by the beveled tip of the needle. Later that day, chest X-ray disclosed the presence of the fragment extending from right subclavian vein to the superior vena cava. {Fig. 1 and Fig. 2]. Local exploration by way of an infraclavicular incision was unsuccessful in locating the catheter fragment. Another attempt was then made remove the catheter by means a biotome, which is originally a device for the biopsy of the myocardium, introduced through the right great saphenous vein. This procedure, though well tolerated by the patient, was in vain. After 11 days later, during that time he was taken a laparotomy with drain, another operation for removal of retained catheter fragment was performed through median sternotomy. After exposure of the right subclavian vein, innominate vein, and superior vena cava, an incision 1 cm in |length was made directly over the palpated catheter. The catheter immediately was picked upward and removed. The length of the catheter was approximately 8 cm. [Fig 3 ] There was no evidence of thromboembolism from the catheter or other complications. The patient made an uneventful recovery, and was discharged asymptomatic on the 9th postoperative day.

• Journal of The Korean Society of Grassland and Forage Science
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• v.16 no.1
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• pp.17-26
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• 1996

This experiment was carried out to investigate the effects of endophyte staWendophyte-free and -infect) and cutting frequency(3, 4, 5 and 6 timeslyear) on the forage quality of tall fescue(Festuca crnrtzdit~crcerr Schreb.) at the Experimental Field of Grassland and Forage Crops Division. National Livestock Research Institute, Suweon, from 1993 to 1994. 'Ihe results obtained are summarized as follows: CP content of tall fexue was increased with endophyte-free and cutting frequency for two varieties. Crude protein yield(CPY) of tall fescue in 1993 was increased with endophyte-free and cutting frequency for two varieties(P<0.05). In 1994, however. CPY of endophyte-free tall fescue was slightly lower than that of endophyte-infected tall fescue and the higher CPY was observed when tall fescue was harvested 6 times per year. NDF content of tall fescue was not different between endophyte-infected and -free. NDF was decreased with cutting frequency for two varieties in 1993, however. it was not influenced by the endophyte and cutting frequency in 1994. ADF content of tall fescue was not different between endophyte-infected and -free. and it was decreased with cutting frequency for two varieties. IVDMD was not influenced by endophyte, however, it was increased with cutting frequency for two varieties. Based on the results of this experiment, it is suggested that a slight increase in forage quality could be obtained from endophyte-free tall fescue and the quality was increased with frequent cutting.

• Magazine of the Korean Society of Agricultural Engineers
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• v.17 no.4
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• pp.3962-3969
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• 1975

1. When the frame of the experimental apparatus was directly fixed on the platform, result from the spectrum density analysis showed that the generated vibration frequecy of the system was nearly-same as the system's own characteristic vibration frequency, 80Hz, in the case of the forcing vibration frequency was 7.5 to 22.5Hz. The reduction ratio of acceleration by balanced type model compare to non-balanced type one was 26.66 percent. 2. When the frame of experimental apparatus was fixed on the platform with putting a shock absorbing rubber between the frame and the platform, the generated vibration frequency of the system was same as forcing vibration frequency. When either frequency or the amplitude of the forcing vibration was increased, the acceleration ratio was increased too. The average reduction ratio was resulted 44.77 per cent. It was concluded that this method of acceleration measurement(the method using a shock absorbing rubber) was a reaonable method, because actual machine will work under such condition. As the vibration frequency and aptitude were increased, the absolute magnitude of acceleration was increased. 3. unbalanced rotating parts, and unbalanced moment of inertia of links were supposed to be causing factors of residual vibration in spite of using the balanced type oscillating mole drainer. This fact suggested that the attachment of the counter weight on the rotating parts which satisfy the condition mw$.$rw=m0e, was necessary. And also, it was expected that the shock absorbing effect could be improved by putting the shock absorbing materials between the moving parts and their supports.

• Journal of Acupuncture Research
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• v.24 no.1
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• pp.99-110
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• 2007

Objectives : This study was performed to evaluate a recent status of acupunctural treatment in pediatric practice. Methods: 660,893 children, who visited HAMSOA oriental clinic from January 2004 to December 2005 was screened to decide the number treated with acupuncture, the diagnosis and the type of acupuncture. In addition, the questionnaire for clinician about acupuncture therapy was performed and analysed to understand their applications. Results: The number treated with acupuncture was 69,797, 10.56%. Classified with ages, 3 months and below was 729 (1.7%), 1 year - 3 months was 5,035 (11.80%), 2 year - 1 year was 6,875 (16.10%), 3 year - 2 year was 5,540 (12.98%), 6 year - 3 year was 12.636 (31.94%) and 6 year and above was 10,876 (25.48%). The most frequent diagnosis taken acupuncture was atopic dermatitis (14.93%) and the next was rhinitis (13.80%). The most frequent type of acupuncture was laser acupuncture. The clinicians answered questionnaire agreed that acupuncture therapy is effective for pediatric disease treatment and fear about acupuncture of young patients was the most important obstacle. Conclusion : The acupuncture therapy in pediatric practice is not so frequent treatment but in increasing stage. Futhermore, in-depth research about acupuncture therapy in pediatrics is demanded.

• Journal of the East Asian Society of Dietary Life
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• v.7 no.1
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• pp.57-63
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• 1997

In order to use leaf mustard Dolsan food preservative ingradient acidity, antimicrobial activity and colors were investigated during pretreatment of leaf mustard Dolsan. pH was remarkably decreased after 8 hours to pretreatment(extracted on shaking) of leaf mustard Dolsan, and no changes were observed after that time. pH of leaf part was higher than stalk after 8 hours storage. Titratable acidity was opposite tendency to the pH. pH was gradually decreased than initial stage during pretreatment of leaf mustard Dolsan at 30, 40 and 5$0^{\circ}C$. After 16 hours pretreatment, the higher pretreatment temperature was, the higher pH was, but after pretreatment for 48 hours, pH of sample pretreated at 5$0^{\circ}C$ was lower than that of sample pretreated at 40 $^{\circ}C$. Antimicrobial activity of leaf mustard Dolsan extract pretreated at 3$0^{\circ}C$ was the strongest of the samples pretreated at 30, 40 and 5$0^{\circ}C$, and that of stalk part was stronger than that of leaf part. L and time. L and b value was higher in the order of samples pretreated at 40, 50 and 3$0^{\circ}C$, and the lower pretreatment temperature was, the higher a value was. L value of stalk part was higher than that of leaf part, but a and b value of leaf part was higher than that of stalk part.

• Journal of Trauma and Injury
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• v.30 no.1
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• pp.12-15
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• 2017

A 58-year-old male visited our emergency room for multiple traumas from explosion. On initial evaluation, hemopneumoperitoneum with liver laceration (grade 4) and colon perforation was identified. Hemopericardium with cardiac tamponade was also identified. Shrapnel was detected in the right ventricle. Damage control surgery was planned due to condition of hypotension. In operation room, control over bleeding was achieved after sternotomy, pericardiotomy, and laparotomy. Massive transfusion was done during operation. After gauze packing, operation was terminated with temporary closure (TC). Sanguineous fluid was drained profusely. Disseminated intravascular coagulopathy was confirmed through laboratory findings. No extravasation was discovered at hepatic angiogram. On re-operation, there was no active bleeding but oozing from sternotomy site was identified. Bone bleeding was impossible to control. Finally, reoperation was ended after gauze packing and TC all over again. The patient could survive for only a day after re-operation.

• Microbiology and Biotechnology Letters
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• v.23 no.3
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• pp.304-310
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• 1995

A thermophilic bacterium producing the extracellular cellulase-free xylanase was isolated from soil and has been identified as Bacillus sp. The optimal growth temperature was 50$\circ$C and the optimal pH, 7.0. Under the optimal growth condition, maximal xylanase production was 2.2 units/ml in the flask culture. The enzyme production was induced by xylan and xylose, but was repressed by sucrose or trehalose. The partially purified xylanase was most active at 70$\circ$C. It was found that the enzyme was stable at 65$\circ$C for 10 hours with over 75% of the activity. The enzyme was most active at pH 7.0 and retained 90% of its maximum activity between pH 5.0 and pH 9.0 though Bacillus sp. was not grown on alkaline conditions (>pH 8.0). In addition, the activity of xylanase was over 60% at pH 10.0. At the ambient temperature, the enzyme was stable over a pH range of 5.0 to 9.0 for 10 h, indicating that the enzyme is thermostable and alkalotolerant. The activity of xylanase was completely inhibited by metal ions including Hg$^{2+}$ and Fe$^{2+}$, while EDTA, phenylmethylsulfonyl fluoride (PMSF), $\beta$-mercaptoethanol and SDS didn't affect its activity. The enzyme was also identified to exert no activity on carboxymethylcellulose, laminarin, galactomannan, and soluble starch.

• The Journal of Pediatrics of Korean Medicine
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• v.13 no.2
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• pp.171-186
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• 1999

Atopic dermatitis is a chronic or chronically relapsing, pruritic dermatitis. It commonly occurs in patients with a personal or family history of atopy. We studied 67 children suffering from atopic dermatitis Oriental Medicine Hospital in Kyunghee University, and analyzed sex, age, feeding, clinical manifestation, risk factor. The results were as follows : 1.Most age distribution of children was from 2 to 6, male to female ratio was 1:1.03 2.Breast-feeding to milk-feeding ratio was 2.93:1 3.Frequency of aggravating symptom by specific food was 31.3%, among this, meat(especially chicken) was revealed high risk factor 4.Frequency of family history suffering from other allergic disease was 61.2%, among this father to mother ratio was 1.27:1 5.Sites of atopic dermatitis were as follows : The inner space of elbow and knee joint was 77.65, back, face, neck was 56.7%, back of ear was 52.2%, wrist was 46.3%, abdomen was 38.8%, ankle was 34.3%,head was 29.9%.