하악의 측방운동 재현성과 저작운동 간의 관계에 관한 연구

남천우,한경수 대한 두개하악 장애학회 1997 대한두개하악장애학회지 Vol.9 No.1

This study was performed to investigate the relationship between reproducibility of mandibular lateral movement and chewing movement in subjects with preferred chewing side. 44 dental students without any signs and symptoms of temporomandibular disorders participated in this study. BioEGN of the Biopak^� (BioResearch Inc. USA) was used to record mandibular lateral movement and chewing movement. Mandibular lateral movement was performed acceding to the method used for Pantographic reproducibility index, and from this, reproducibility index devised by the author and named as BioEGN reproducibility index(BERI) was computed. Chewing movement was observed as to chewing velocity and range of movements. The data were categorized by the preferred chewing side and the correlationship between reproducibility of mandibular lateral movement and chewing movement was also analyzed with SAS/stat program. The results obtained were as follows : 1. There were no statistical difference in most of the measurement items of chewing movement according to preferred chewing side, but mean value of some items such as velocity and total lateral distance in horizontal plane in left-side preferred chewing subjects were higher than those in right-side preferred chewing subjects. 2. Reproducibility indexes on lateral movements to both preferred chewing side and contra-lateral side were statistically same in each chewing subjects group. 3. In right-side preferred chewing subjects, correlationship between reproducibility of mandibular lateral movement and chewing movement were significant contralaterally, but in left-side preferred chewing subjects, the correlationship were observed in left-side chewing movement only. 4. In right-side preferred chewing subjects, there was a negative correlationship between reproducibility of mandibular lateral movement and slight mandibular protrusion in early stage of chewing movement, and in left-side preferred chewing subjects, the items of significant correlations with mandibular reproducibility were sagittal mouth opening range and horizontal distance to preferred chewing side.

뇌졸중 환자의 경직 감소를 위한 경피적 전기 신경 자극술과 침술의 효과

백천호,소성욱,김희상,안경회,남상수,박선구 大韓再活醫學會 1997 Annals of Rehabilitation Medicine Vol.21 No.6

알레르기 환자에서 MAST-CLA 검사의 의의

남해선,황규윤,,백병준,정윤영,오천환,조성란,박준수 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

To evaluate usefulness of application of MAST-CLA to indetify allergens, authors conducted MAST-CLA allergen-specific IgE assay and collected allergy related symptoms in 118 allergic patients diagnosed at Soonchunhyang University Chunan Hospital during October 1998 through January 2000. The results were as followings; 1. The mean (SD) age was 23.1 (±12.17) years old and teenagers accounted for 33.1% of patients. 2. The frequent allergic symptoms were sneezing (59.3%), rhinorrhea (53.4%), nasal stiffness (44.1%), itching sensation (24.6%), cough or sputum (16.1%), and eye symptom (8.5%) in order. 3. Among these subjects, 62.7% of patients revealed at least more than one specific allergen and 70.3% showed elevated total IgE levels by MAST-CLA. The three most frequent specific allergens were Dermatophagoides farinae (47.5%), Dermatophagoides pteronyssinus (45.8%), and house dust (30.5%). 4. While age was not significantly related to positive of both specific allergens and total IgE (P>0.05), sneezing and nasal stiffness were significantly associated with positive of specific allergen and total IgE, respectively (both P<0.05). 5. Total IgE increased with the number of specific allergens, but both specific allergen and total IgE were not significantly related to increases of allergic symptoms (P>0.05). In conclusion, our data suggest that MAST-CLA allergen-specific IgE assay is useful measure for identification of causative allergens in allergic patients, however, it is recommended that more specific allergic antigens should be determined and replaced or added to Korean inhalent panel of MAST-CLA.

酸性降雨에 의한 畓土讓內 金屬物質의 浸出 및 吸着能에 關한 硏究(Ⅰ)

김남천,우세홍,채수권,권우택,유영식 서울保健大學 1992 論文集 Vol.12 No.1

Leaching characteristics and adsorption ability of Fe and Mn in the paddy soil were studied with synthetic acid rain. 1. Leaching quantity of Fe from the paddy soil by acid rain was 8 times as much as by neutral rain, and 6 times for Mn. 2. Leaching quantity was changed with heat treatment methods of sample soil (ignition or air drying), with kind of meta](Fe or Mn) and with acidity of soil (acid or netural). 3. The adsorption ability of Fe on the paddy soil was twice as much as, that of Mn. 4. Langmuir isotherm equation was c/q=20C+10 for Fe(air drying paddy soil) and c/q=160 C - 610 for Mn(ignation paddy soil). 5. Contineous column experiment showed that the adsorption ability of Mn was above 100, and for Fe, it was changed with kinds of sample soil and pouring methods.

기관지천식 환자에서 Furosemide, Disodium cromoglycate 및 Heparin 흡입이 고장액 식염수 기관지유발검사에 미치는 영향

강천일,현상훈,남언정,김건우,윤종수,서영익,이종명,김능수 慶北大學校 醫科大學 1996 慶北醫大誌 Vol.37 No.3

목적 : 기관지천식 환자에서 고장액 식염수의 흡입은 기도수축을 유발할 수 있으며 이는 운동유발성 천식반응과 밀접한 관계가 있는 것으로 알려져 있다. 저자들은 알레르겐 흡입이나 운동에 의해 유발되는 천식에 예방효과가 있는 것으로 알려진 disodium cromoglycate(DSCG), furosemide 및 heparin 흡입이 4.5% NaCl 기관지유발검사(BPT)에 미치는 영향을 조사하였다. 대상 및 방법 : 4.5% NaCl BPT에서 양성반응을 보이는 기관지천식 환자 13명을 대상으로 하였으며 사용된 약물은 furosemide 40㎎, DSCG 40㎎ 및 heparin 1,000μ/㎏이었다. 먼저baseline 4.5% NaCl BPT를 시행한 다음 이들 약물로 전처치후 다시 4.5% NaCl BPT를 시행하여 약물의 효과를 관찰하였다. 결과 : Furosemide 40㎎, DSCG 40㎎및 heparin 1,000μ/㎏의 흡입 전처치는 고장액 식염수에 의한 기도수축 반응에 뚜렷한 예방효과를 보였다. Furosemide와 DSCG로 전처치한 군(n=6)에서 이들의 기도수축 방어율은 각각 100.6±6.6%, 91.1±17.2%였으며 furosemide와 heparin으로 전처치한 군(n=7)에서는 각각 58.7±29.2%, 59.0±51.1%로서 각 군에서 이들 약제간의 방어율에는 유의한 차이가 없었다. 결론 : Furosemide(40㎎), DSCG(40㎎) 및 heparin(1000μ/㎏)의 흡입 전처치는 고장액 식염수에 의한 기도수축 반응에 뚜렷한 예방효과를 보였으며, 적어도 이 용량에서 기도수축 예방 정도에는 유의한 차이가 없음을 알 수 있었다. Background: Hypertonic saline (4.5% NaCl) inhalation is known to induce broncho-constriction by affecting mast cell, epithelial cell and vagal afferent pathway in some asthmatics. Disodium cromoglycate (DSCG) is known to have a preventive effect on allergic asthma and exercise induced asthma, and recently it was reported that furosemide and heparin had similar effect. The purpose of this study was to evaluate the effects of furosemide, DSCG and heparin on hypertonic saline provocation test in asthmatics. Methods: Thirteen asthmatics with a positive response to hypertonic saline challenge were enrolled. Hypertonic saline and test drugs were generated by ultrasonic nebulizer. After taking baseline 4.5% NaCl challenge, subjects were rechallenged with 4.5% NaCl after inhalation of furosemide 40㎎, DSCG 40㎎ or heparin 1,000μ/㎏. Results: 1. There was a significant positive relationship between PC_20-methacholine and PTM-4.5% NaCl(r=0.5575, p = 0.024). 2. Furosemide, DSCG and heparin had no direct bronchodilating effects. 3. Premedication of furosemide and DSCG(n=6) showed significant protective effects on 4.5% NaCl induced broncho-constriction. The average protection rate were 100.6±6.6% and 91.1±17.2%, respectively. 4. Premedication of furosemide and heparin(n=7) showed significant protective effects on 4.5% NaCl induced broncho-constriction. The average protection rate were 58.7±29.2% and 59.0±51.1%. respectively. Conclusions: Furosemide(40㎎), DSCG(40㎎) and heparin(1.000μ/㎏) had significant protective effects on hypertonic saline induced broncho-constriction in asthmatics, and there were no significant differences in their potency of protection rate.

生物學的 營養鹽類 處理效率의 比較硏究

채수권,김건흥,김남천 인하대학교 1990 인하대학교 산업과학기술연구소논문집 Vol.18 No.1

本 硏究는 生物學的으로 有機物 및 營養鹽類의 除去效率을 조사하기 위해 無酸素-嫌氣-好氣反應槽(type I)과 無酸素-好氣反應槽(type II) 및 一般活性슬러지工法(type III)를 서로 비교했다. 이 시스템들은 6개의 다른 MLSS濃度(5000, 4200, 3300, 2600, 1900, 1200㎎/ℓ)로 運營되었고, 除去效率을 비교하여 다음과 갈은 結果를 얻었다. 1) COD, TKN, Total-P에 대한 type I, II, III의 除去效率을 비교한 결과 type I의 除去效率이 가장 좋았다. 2) COD, TKN에 대한 type I의 除去效率은 type II와 별로 차이가 없으나, Ortho-P의 경우는 type II보다 높다. 따라서 燐除去效率을 높이기 위해 嫌氣槽가 필요하다. 3) MLSS 농도가 2600㎎/ℓ일때 type Ⅲ에서만 sludge bulking이 발생하였으나, type I, II는 無酸素槽 때문에 sludge bulking이 抑制되었다. 따라서, type I, II는 一般活性슬러지工法(type III)보다 bulking 柳制에 장점을 갖고 있다. This study compared the anoxic-anaerobic-aerobic reactor system(typeⅠ) with the anoxic-aerobic reactor system(type Ⅱ) and with conventional activated sludge system(type Ⅲ) in order to scrutinize the overall removal efficiency of organics and nutrients. These systems were operated at six different MLSS concentrations, 5000, 4200, 3300, 2600, 1900, and 1200 ㎎/ℓ. On the basis of the efficiency comparison study, the researcher obtained the results as follows: 1) Overall removals of COD, TKN and Total-P by the type Ⅰ were better than those of type Ⅱ, Ⅲ. 2) Overall removals of COD and TKN by the type Ⅰ were similar to those by type Ⅱ. But the Ortho-P removal of type Ⅰ was better than that of the type Ⅱ. For this reason, one might conclude that the anaerobic condition of type Ⅰ is essential to promote the enhanced phosphorus removal efficiency. 3) Sludge bulking occurred in the type Ⅲ at the MLSS concentration of 2600 ㎎/ℓ. Type I and Ⅱ had no bulking, owing to the anoxic condition and they showed the advantages of bulking control over the conventional activated sludge system, i.e., the type Ⅲ.

無酸素-嫌氣-好氣法에 의한 폐놀 廢水의 處理

채수권,김남천 서울保健大學 1994 論文集 Vol.14 No.1

When influent substrate was nonbiodegradable phenol, it was treated by Anoxic-Anaerobic-Aerobic system with single return sludge. The operating condition was completely mixed batch reactor with recycle. This system was operated to scrutinize time tracks of COD, NH_(3)-N, Ortho-P, DO, and ORP. Oxidation-Reduction Potiontial(ORP) measurements were made in conjunction with monitoring of other process variables in biological nutrient removal system to determine the suitability of using this parameter to monitor and characterize conditions in un-aerated bio-reactor. Results obtained indicated that ORP could provide a very meaningful indication of process and ORP was found to correlate with observed phosphorus release in anaerobic environment.

활성오니법에 의한 전기부속품 공장 폐수처리에 관한 연구

김남천,채수권 서울보건대학 1996 서울보건대학 부설 한국보건과학연구소 논문집 Vol.3 No.1

In order to treat wastewater from a factory manufactured electrical accessories. sludge returned CMAS reactors of MLSS 2000mg/l were operated with various HRTs of 5.40hrs. 7. 89hrs, 15.6hrs, and 30.8hrs at a temperature of 20℃. The results showed that it was difficult to get 80% of TCOD removal even with longest HRT(30.80hrs) while more than 80% removal of TBOD was achieved with 7.89hrs of HRT. To remove 80% of BOD and 70% of COD, F 1M ratio was reqiured to maintain 0.17kg BOD/kg MLSS. day, even in this case, the removal rates between TBOD and SBOD were significantly different. The calculated substrate removal rate(Km) was 1.26/hr, and the calculated cell conversion rate of organic matters(S/TE) was 0.26 on the base of BOD. Estimated cell yield coefficient (Y), cell synthesis coefficient(ke). and endogenous respiration coefficient(ke) were 0.242, 0.31/hr, and 0.02/hr. respectively. The effluent concentration of TBOD. SBOD, MLVSS in aeration reactor, and oxygen uptake rate(dO/dt) were ranged 9.1∼25.4mg/l. 4.9∼11.9mg/l, 1,375∼1,983mg/l. and 5.4∼30.19mg O_(2)/·hr, respectively. These observed values are agreed relatively well with calculated values. The sludge production rates per HRT were ranged 0.443∼1.28g SS/day, and the sludge production rate per BOD removal were ranged 1.635∼2.717g SS/g BOD_(rem). These values are close to the calculated ones. The best sludge dewatering rate was achieved with 15.60hrs of HRT and its specific resistance(α) was 2.68×10^(11)sec/g.

養豚 排泄物의 好氣的및 嫌氣的 消化 處理에 關한 硏究 : A study on the Aerobic and Anaerobic digestion of the Swine Manure

김남천,김승곤,이태수 인천대학교 1992 基礎科學論文集 Vol.3 No.1

More than 95% reduction in BOD of swine manure treated with aerobic digestor can be obtained at F/M ratio of 0.06-0.143㎏·BOD/㎏ MLSS·day with 6.8 days hydraulic retention time. And in case of anaerobic digestor controlled at 35℃, more than 82% BOD removal can be obtained at VS loadings of less than 1.07㎏·VS/m³·day with more than 10 days sludge retention time.

기관내 삽관시 Slow induction과 Fentanyl 정주가 심혈역학적 변화에 미치는 영향

윤재천,채종한,조남수,정종달,김용일 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.2

Tracheal intubation is accompanied by varying degrees of sympathetic stimulation as reflected by increases in blood pressure and heart rate. Several clinical trials to reduce these effects by deepening anesthesia, using pharmacologic agents such as alpha and beta blockers,calcium channel blockers, fentanyl and lidocaine have been reported. To evaluate the effects of slow induction and fentanyl on responses of cardiovascular system induced by endotracheal intubation, we administered thiopental sodium 5㎎/㎏ (group Ⅰ), slow induction with O_(2)-N_(2)O-halothane( group Ⅱ), fentanyl 3uμ/㎏ with thiopental sodium 4㎎/㎏(group Ⅲ) for induction of anesthesia, and measured systolic and diastolic pressures, and heart rates before induction, and at 1,2,3,4, and 5 minutes after intubation. 1) In group Ⅰ, intubation caused a significant increase in systolic pressure (10%) diastolic pressure (15%) and heart rate (28%) at 1 min. after intubation but each parameter returned to the normal level within 5 min. 2) In group Ⅱ, increases in systolic pressure (12%), diastolic pressure (22%) and heart rate (23%) at 1 min. after intubation but there were no significant differences compared to group Ⅰ. 3) In group Ⅲ, the increase in systolic and diastolic pressure induced by intubation was abolished by fentanyl and showed significant decrease compared to group Ⅱ, increase in heart rate (4%) at 1 min. after intubation but were of no significance, and showed significant decrease compared to group Ⅱ but not at 3 min., 4 min. after intubation. These results suggested that a low dose of fentanyl significantly blunts postintubation hypertenion and tachycardia when used as an adjunct to thiopental sodium.