• 한국농공학회지
• /
• 제39권4호
• /
• pp.55-63
• /
• 1997

Constructed wetland system which can be applied to the rural wastewater treatment system was examined by pilot plant in Kon-Kuk University. Hydraulic loading rate of wastewater was about 0.16m$^3$/m$^2$. day and theoretical detention time in the system was 1.38 days. The effluent of the septic tank for the school building was applied as inflow to the system. The influent concentration of DO was zero but effluent was up to 4.37mg/${\ell}$ which implies that oxygen was supplied enough from atmosphere by reaeration to support biological activity of the system. Average influent concentration of BOD was 104mg/${\ell}$ and effluent was 24mg/${\ell}$ with average removal rate of 76%. Average influent concentration of COD was 215mg/${\ell}$ and effluent was 63mg/${\ell}$ with average removal rate of 70 % . Average influent concentration of SS was 78mg/${\ell}$ and effluent was 10mg/${\ell}$ with average removal rate of 87%. Two components, BOD and SS, are regulated by law to keep maximum water quality standard of 80mg/${\ell}$ when daily outflow rate is less than 100$m^3$/day which is the case of most rural communities. Therefore, the results from the experiment showed that constructed wetland system can meet the water quality standard easily. Average influent concentration of total nitrogen was 165mg/lwhich is relatively higher than normal wastewater, and effluent was about 156mg/${\ell}$ with average removal rate of only 6%. Average influent concentration of total phosphorus was 41 mg/${\ell}$ and effluent was 6mg/${\ell}$ with average removal rate of 87%. Overall, constructed wetland system was thought to be effective to treat wastewater if nitrogen removal mechanism is improved. Considering low cost, less maintenance, and high treatability, this system can be a practical alternative for the wastewater treatment in rural area The experiment was performed during the summer and fall season, and treatment efficiency of the system is expected to decrease in low temperature. therefore, further study including temperature is required to evaluate feasibility of the system more in detail.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제17권4호
• /
• pp.379-388
• /
• 1995

This study was based on a series of 369 patients with Oral and Maxillofacial injuries treated at Kumi Hospital, College of Medicine, Soon-Chun-Hyang University from Jan. 1992 to Dec. 1994. The results obtained were as follows : 1. The number of male patient was 310 and that of female was 59, leading to 5.3 : 1 of male-female ratio, and the 3rd decade was the highest age group in incidence. 2. Weekly incidence was the highest in Sun. & Sat. and monthly incidence was the highest in Nov.& Oct. 3. Causes as follows : traffic accident 41.9%, slip& fall down 25.4%, human trouble 16.5%, industrial accident 7.5%, sports 6.7%, etc. 4. Site distribution as follows : mandible fracture 32.3%, maxilla fracture 4.8%, zygoma fracture 21.4%, nasal bone fracture 34.1%, orbital& ethmoidal fracture 4.6%. 5. The most common site of mandible was symphysis & angle, and the ratio of OR & CR was 1.3 : 1. 6. The most common site of maxilla was Le Fort 1, 2, and the ratio of OR & CR was 3 : 1. 7. The most common site of zygoma was body, the ratio of OR & CR was 3.3 : 1. 8 . The mean period of intermaxillary fixation was 4.33weeks. 9. Combined injury in facial fracture was 35.8% : The facial fracture were most frequently combind with head & neck(47.0%), upper extremities and abdomen(9.8%). 10. The mean elapsed time from injury to hospital was 1.9days, and that to operation was 5.1days. 11. The mean number of combined teeth injury was 0.6, and percent of combined soft tissue injury of face was 51.3%. 12. Post-operative complication occurred in 4 out of 323 cases. all of that was infection.

• Journal of Chest Surgery
• /
• 제16권4호
• /
• pp.584-593
• /
• 1983

Esophageal reconstruction was performed in 344 patients with irreversible stricture of the esophagus resulting from caustic burns at National Medical Center from 1959 to 1982.There were 113 males and 231 females, and ranging from 2.5 to 58 years of age, and mean age was 26.5 years, and 25 cases were less than 10 years old. Caustic materials were 286 [83.2%] alkali and 50[14.5%] acid. The most frequent stricture site was upper thoracic esophagus as 56.7%, and the next was cervical as 31.4%, and lower, 11.9%. The stomach was involved in 10.8% totally, and hypopharyngeal stricture was also noticed in 3.2%, and in 3 cases, hypopharyngeal reconstruction was needed due to extensive scar change. In 329 of total 344 cases, colon interposition was performed without resection of the strictured esophagus except 4 cases which were complicated T-E fistula or perforation, and most of them, about 10-15 cm of terminal ileum with right half of the colon was used as the graft. The left colon with anti-peristalsis was used as graft only in 30 cases. The most common postoperative complication was anastomotic leak as 16.7% of total cases, and it was 12.5% from neck, 3.3% from ileocolostoma and 0.9% from cologastrostoma. Next common complication was neck stenosis [8.8%], aspiration pneumonia [6.4%], and graft necrosis [3.9%] in order. Overall operative mortality was 5.5% [14/329], and main causes of death were graft necrosis, sepsis due to anastomotic leak, gastric bleeding, and intestinal obstruction. Besides of colon interposition, according to shape or level of the stricture, plastic repair or segmental resection and direct anastomosis was done in 9, and 1 of them were complicated stenosis at the anastomotic site. In lower stricture, esophagogastrostomy was done in 10 cases, and 1 case expired due to hepatitis, and anastomotic stenosis was occurred in 2 cases at 1.5 months and 2.4 years later. During follow-up of 298 cases colon interposition from 6 months to 22 years, 82.6% was excellent, and 2.9% was complained of mild discomfort, and 4 cases were dead laterly, but 3 of them were not related to reconstruction.

• Restorative Dentistry and Endodontics
• /
• 제22권1호
• /
• pp.470-478
• /
• 1997

The purpose of this study was to investigate the effects of moistening mechods of dentin on the morphologic states of hybrid layers and on the interfacial bond strength between dentin and composite. Specimens were divided into 6 groups based on the surface moistening methods and materials used. After the dentin surface was conditioned with 10 % phoporic acid and irrigated: 1. The dentin surface was dried. Then bonding agent and composite were applied. 2. The dentin surface was blot-dryed. Then primer, bonding atent and composite were applied. 3. The dentin surface was dryed first. Within 20 seconds, the surface was rewetted, then primer, bonding agent and composite were applied. 4. The dentin surface was dryed. Then primer, bonding agnent and composite were applied. 5. The dentin surface was dryed first. Atter 24hrs, the surface was rewetted, and then primer, bonding agent and composite were applied. 6. The surface was conditioned with NaOCl for 5min. Then primer, bonding agent and composite were applied. To reveal the hybrid layer, scanning electron microscopy was used after the samples were ion beam etched. The shear bond strength of each group was tom pared by ANOVA. In groups 2, 3 and 4, the hybrid layer was clearly visible, but the width was more limited in group 4. In group 1 and 5, the hybrid layer was not found, and a gap was formed between dentin and composite. In group 6, the hybrid layer was not found, but the interface between the dentin and composite was intimate. The shear bond strength of each group was as follows: Group 1 : 4MPa, Group 2 : 14MPa, Group 3 : 12MPa, Group 4 : 14MPa, Group 5 : 5MPa, Group 6 : 9MPa.

• 한국농공학회지
• /
• 제40권3호
• /
• pp.83-92
• /
• 1998

Field experiment was performed from August 1996 to January 1998 to examine the applicability of constructed wetland system for wastewater treatment in rural area. The pilot plant was installed in Kon-Kuk University and the school building septic tank effluent was used as an influent to the treatment basin. Hydraulic loading rate was about 0.1 6$0.16^3/m^2$ day and theoretical detention time in the system was 1.38 days. The treatment basin was composed of sand and reed. The influent DO concentration was low and many cases close to zero, but effluent concentration was higher than the influent which implies that oxygen was supplied naturally. The average concentration of influent BOD was 126mg/L, and with average removal rate of 69 % the average effluent concentration was 4Omg/L which satisfied the effluent water quality standard for the system of interest. The average influent concentration of COD was 2Olmg/L and average effluent concentration was 75mg/L with average removal rate of 60%. The performance of BOD and COD tends to deteriorate in the low temperature, and appropriate action needs to be taken during the cold winter time for stable operation. The average influent concentration of SS was 5Omg/L, and effluent was 1 1mg/L with average removal rate of 76% which satisfied the effluent water quality standard for the system of interest. The results for the regulated components, SOD and SS, from the experiment showed that constructed wetland system can meet the effluent water quality standards. The average influent concentration of total phosphorus was 25.6mg/L and average effluent concentration was 7.8mg/L with average removal rate of 63%. Not like the performance of the above components, average nitrogen removal rate was only 11.2% which is not satisfactory. Although, nitrogen is not regulated at this moment, it can cause many environmental problems including eutrophication. Therefore, nitrogen removal efficiency should be improved for actual application. From the result of the field experiment, constructed wetland system was thought to be an appropriate alternative for wastewater treatment in rural area.

• 대한물리치료과학회지
• /
• 제18권4호
• /
• pp.47-58
• /
• 2011

The purpose of this study was to analyses the main factors of research papers for related with home physical therapy. This study was retrospective descriptive study, the period of data collection was from 1991 to 2011. The data was collected by the journal related in physical therapy, the dissertation of academic degree, National Assembly Library and the web-site for academic information. In the web-site, searched with the keyword 'home physical therapy' and 'after school voucher'. The results were as follows; 1. In the home physical therapy, visiting physical therapy, school physical therapy, there were different based on laws; home physical therapy was based on medical law, visiting physical therapy was based on law for community health and law for long term health insurance, school physical therapy was based on special education law. 2. The summary of research title/thema from 1991 to 2011 was as follows; for the home and visiting physical therapy 'the needs and necessity of home and visiting physical therapy' was 18 papers, 'the contents of service of home and visiting physical therapy' was 18 papers, 'program and skill development' was 16 papers, 'system developing and induction strategy of home and visiting physical therapy 'was 15 papers, 'costs of nome and visiting physical therapy' was 2 papers, 'perception and information of home and visiting physical therapy' was 9 papers, 'Recoding system and administration management' was 9 papers, 'the others 'was 14 papers, for the school physical therapy 'after school voucher system' was 9 papers, the others was 4 papers. The total papers was 114 papers. 3. Finally suggested 'Model of Educational Program for HomeVisiting and School Physical Therapy'.

• 한국식품저장유통학회:학술대회논문집
• /
• 한국식품저장유통학회 2003년도 제23차 추계총회 및 국제학술심포지움
• /
• pp.204-205
• /
• 2003

Change in Quality properties of the Kochujang Prepared with the powder of Paecilomyces japonica and extract of p. japonica by different solvents were investigated during 90 days of fermentation at 20$^{\circ}C$. The moisture content was not significantly different, pH of Kochuiang made with p. japonica was lower than control group and decreased continuously according to the fermentation time. Amino nitrogen continuously increased till 60 days and decreased slightly on 90 days. Amino nitrogen of Kochujang made with P. japonica was higher than control group and was highest on 30 days and 60 days by 179.2mg% and 282.2mg% respectively. Value of L, a, b in Color decreased with proportion to fermentation period and L, a, b value of Kochujang made with P. japonica was lower and in particular that of Kochujang made with P. japonica powder was lowest. from the result of sensory evaluation test, the color of control group was similar to“clear red”but that of Kochojang made with powder of P. japonica was close to“dark reddish brown”and that of Kochujang made with extract of P. japonica was darker than that of control group and the preference of dark color was low. Texture was“glossy and smooth”in all and preference was high. In salty taste, the Kochujang by P. japonica addition was stronger and Kochujang made with extract was stronger than that made with powder. In hot taste, the Kochujang made with P. japonica was weaker than control group and the Kochujang made with P. japonica was scored higher in flavor than control group and Kochujang made with powder of P. japonica was the highest in score. In overall preference, the Kochujang made with P. japonica was better than control group like the result of flavor but expecially Kochujang made with water extract of P. japonica among the extract was best one unlike the result of flavor.

• 한국식품영양과학회지
• /
• 제27권2호
• /
• pp.214-219
• /
• 1998

This study was carried out to investigate the changes of physicochemical and sensory characteristics according to cold storage period of the vacuum-time beef loin. The pH was decreased for 10 days, and then was increased gradually during storage time. The lactic acid content during the initial storage was 483mg/100g, after storage for 10 days it was increased significantly (p<0.05) to 625mg/100g, and then was decreased with storage time. Regarding of color difference, the L values were 41.0~42.5, but after storage for 40 days they were increased significantly(p<0.05) to 46.2, the a and b values wee 17.3~14.3 and 7.2~5.8, respectively, they were no significant differences depending n storage time. The shear force values showed 584 and 560g for 0 and 10 days, respectively but after storage for 20 days it was decreased significntly(p<0.05) to 299g. The myofibrillar protein extractability was no significant difference for 20 days, howener, it was increased remarkably at 30 days(p<0.05). The myofibrillar fragmentation index was increased significantly (p<0.05) on 20 and 40 days, and the Mg-ATPase activity of myofibrils was increasd to 30 days. The free amino acid was increased during storage periods. The composition of amino acid was composed of glutamic acid, alanine, valine and lysine, which were predominant amino acids as 45%. The total free amino acid was increased 182.18mg/100g to 40 days. The raw meat aroma showed no significant changes during storage time, but the tenderness was increased until 30 days(p<0.05). The color was superior from 20 to 30 days. The taste of cooked meat indicated significant changer to 30 days, but was significantly inferior(p<0.05) at 40 days, the aroma was superior until 30 days(p<0.05). The palatability was superior between 20 and 30 days.

• 대한물리치료과학회지
• /
• 제9권4호
• /
• pp.119-130
• /
• 2002

Objective: The purpose of this research was to use data for furnish quality physical therapy service. The research subjects were admitted shoulder pain patients treated with physical therapy that was to grasp physical therapy method as distinguishing application time. Subject: Total number of distributed questionnaire was 563 persons that was to utilized physical therapy room of 56th medical institution and distributed it to each physical therapist in charge. Method: The research used questionnaire in order to research itemized treatment application time that is according to physical therapy method to applicated with shoulder pain patient. The research contents is to received shoulder pain diagnosis period, total duration of utilizing physical therapy room, the number of times per week to used physical therapy room, etc. And we had physical therapist recording the time of application physical therapy method come under the items. Result: The average treatment time was 59.2 minutes at all patients. During this time, 39.7 min was modality treatment. Active movement treatment was only 7.1 min. Total treatment time was longest in general hospital at 64.9 min, it was shortest in clinical hospital at 53.3 min. Treatment time was difference as hospital scale(p<0.001). Active movement treatment time was longest in general hospital at 11.5 min. The average treatment time was 4.5 min in clinical hospital. Therefore, it was related to hospital scale(p<0.05). The average of manual therapy time by physical therapist was 7.5 min. General hospital was linger at 8.6 min than clinical hospital at 6.7 min(p<0.05). Patient of 90.2 % were treated to hot pack, ultra-sound treatment was next as 50.1%. Active strengthening exercise was most carrying out of the active treatment as 25.4 %. Active sensorimotor exercise was practiced only 28 persons of 5.0 %. Most joint mobilization (38.4 %) was used of the passive manual therapy items, next to soft tissue mobilization (33.0 %), and next to manual distraction therapy(14.0 %).

• 한국식품조리과학회지
• /
• 제10권1호
• /
• pp.1-7
• /
• 1994

Major quality parameters(organic acids, alcohols, fusel oil and sensory characteristics) of traditional Ewhaju were investigated during brewing. In organic acid contents at immediately after brewing, lactic acid was 155.1mg％, malonic acid was 5.4mg％, succinic acid was 8.9mg％, acetic acid was 7.6mg％, oxalic arid was 1.3mg％, citric and tartaric acid was 27.8mg％ and pyruvic acid was 4.8mg％ but in 100 days after brewing and one year aged, lactic acid was 1763.3 and 3059.3mg％, malonic acid was 12.3 and 19.3mg％, succinic acid was 11.5 and 23.1mg％, acetic acid was 29.2 and 73.1mg％, oxalic acid was 0.6 and 0.2mg％, citric and tartaric acid was 298.3 and 639.6mg％, and pyruvic acid were 1.1 and 0.3mg％, respectively. All the alcohol contents increased as the fermentation period increased ; the ethyl alcohol was only 0.05fe at immediately after brewing. In the alcohols content of Ewhaju at 100 days after brewing, the ethyl alcohol, methyl alcohol n-propyl alcohol and iso-butyl alcohol were 5.13ft, 47.56 ppm, 37.25 ppm and 19.51 ppm, respectively, Also in the one year aged Ewhaju, the ethyl alcohol was 9.39f), methyl alcohol was 36.34 ppm, Fusel oil was not detected in the first stage of brewing, but it was detected 1.12mg％ at 100 days after brewing and 1.18mg％ at one year stored sample. A general trend in change of color was almost white immediatly after brewing but a increase in Hunter "b" value and "a" value were observed depending on brewing time prolonged. Taste and overall palatability of Ewhaju after 100 days of brewing were significantly superior(p<0.05, p<0.01).