혼수상태의 외상환자에서 초음파를 이용한 흉부 및 복부손상의 진단

임경수,이강현,이진웅,이부수,황성오,유수영,강성준 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

The need for rapid diagnosis and treatment of life-threatening thoracic and intra-abdominal injury result in controversy over the appropriate triage of unconscious blunt trauma patients. To aid in early decisions for these patients, a prospective analysis of 98 patients with glasgow coma scale(GCS) scores≤8 was undertaken. Although intra-thoracic and intra-abdominal injuries were frequently identified based on systolic blood ressure, the use of clinical signs alone resulted in more missed injuries than did using the emergency ultrasonography. In normotensive patients(n=34), intra-thoracic injuries was identified in one patient(2.9%), and intra-abdominal injuries were in 7 patients(20.6%). In shock(systolic blood pressure<90mmHg) Pa-tients(n=64), thoracic injuries and intra-abdominal injuries were diagnosed in 8(12.5%) and 27 patients(42.3%), thoracic and abdominal combined injuries were identified in 11 patients(17.2%). The sensitivity, specificity, and accuracy of emergency ultrasonography were 96.3%, 91.7%, 94.9%. This study suggests that all unconscious trauma patients undergo immediate emergency ultrasonography to prevent missing life-threatening injuries.

Extension of Lance Life by Change of Height of Lances in the Smelting Furnace of Mitsubishi Process

Sung‑Mi Lim,Soo‑Sang Park,Kyung‑Woo Yi 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.10

A Mitsubishi process, which pertains to continuous Cu production, involves a smelting furnace, cleaning furnace, and convertingfurnace connected in series. One of the main issues pertaining to the smelting furnace is the frequent interruption ofoperations required to allow the inspection and replacement of lances, because lances are frequently fractured. The presentstudy was aimed at modifying the operating conditions of the smelting furnace to suppress lance fractures. A numericalmodel was developed to simulate the transport phenomena in the furnace, including multi-phase behaviors. The simulationresults showed that the lances were exposed to a severely erosive atmosphere with high temperatures. Further calculationindicated that raising the positions of the lances could lower the temperature of the lances, and reducing the occurrence ofsplashed melt, which contains erosive sulfides. The smelting furnace was operated under the conditions of the raised lanceheight and attentively monitored for several months. It was confirmed that by implementing such a change of the lanceheights, the occurrence of lance failures has been considerably reduced without notably affecting the reaction ability of thesmelting furnace.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)

김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3

Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.

유치열기의 외상으로 인한 계승 영구치의 발육 및 맹출장애

임형수,이창섭,이상호 대한소아치과학회 2001 대한소아치과학회지 Vol.28 No.2

유치의 외상으로 인해 이환된 유치의 손상뿐만 아니라 형성 중인 계승 영구치의 발육과 맹출에도 영향을 줄 수 있다. 가장 흔한 합병증으로는 법랑질의 변색이나 법랑질 저형성증이며, 드물게 계승 영구치의 매복, 이소성 맹출, 치관 또는 치근 만곡, 치근 형성 정지를 유발할 수도 있다. 본 증례들에서는 유치열에 대한 외상성 손상으로 계승 영구치가 심각한 발육 및 맹출 장애를 보였다. 증례 1에서는 4세 7개월경의 외상으로 인해 상악 우측 유중절치와 상악 우측 유측절치가 측방 탈구되고 증례 2에서는 3세경의 외상으로 상악 우측 유충절치와 유측절치가 완전 탈구되었다. 그 결과 계승 영구치인 상악 우측 중절치와 측절치가 모두 동시에 매복되고 치근 형성이 정지되었으며 이소성 맹출이 관찰되었다. 계승 영구치의 발육 장애를 조기에 진단하고 치료하기 위해서는 정기적인 임상 및 방사선학적 검사가 필요하다. Trauma to the primary incisors map cause developmental eruptional disturbance of the permanent successors. Two cases illustrate developmental disturbances of arrested root formation, dilaceration, and eruptional disturbances of impaction, ectopic eruption of permanent successors caused by traumatic injury to deciduous incisors. The patient of the first case suffered trauma at the age of 4 years 7 months, causing alveolar bone fracture including the maxillary right primary central and lateral incisors that were immedi-ately extracted. The second patient had trauma episodes at the age of 3 years. Avulsion of the maxillary primary right central and lateral incisors were occurred due to trauma. After such trauma, regular follow-up including radiographs is necessary to detect early any possible interference with normal eruption of permanent sucessors.

치수염의 임상 증상과 치수내 Lekotriene B4의 농도에 관한 연구

임성삼,권혁춘,윤수한 大韓齒科保存學會 1996 Restorative Dentistry & Endodontics Vol.21 No.1

복숭아나무 揷穗의 크기와 저장양분의 發根과 圃場活着에 미치는 影響

林敬鎬,金炳三,黃仁澤,金月洙,金光秀,金相喆 全南大學校 農業科學技術硏究所 1998 農業科學技術硏究 Vol.33 No.-

복숭아나무 경지삽목 번식에 있어서 삽수 굵기와 길이 및 삽수내 저장 양분 함량이 발근과 포장활착에 미치는 영향을 구명하였다. 삽수 굵기는 直徑 5∼8㎜의 삽수가 발근율이나 발근수, 발근장 등 뿌리 발달이 좋았으나 포장 활착율은 삽수재 저장양분이 많은 직경 8∼11㎜가 좋았다. 삽수 길이는 20∼30㎝ 처리가 발근율, 발근수, 발근장 등 발근력이 좋았으나 포장 활착율은 삽수재 잔존 저장 양분이 많은 30㎝ 길이가 좋았다. 삽목용 적정삽수는 8㎜ 굵기에 30㎝ 길이가 가장 효과적이었으며 포장에서 활착후 묘고, 간경 등 생육은 모든 처리에서 116㎝ 이상, 20.4㎜ 이상으로 삽목 당년에 우량묘가 생산되었다. This experiment was studied to examine the effect of cutting size and storage nutrient on rooting and survival in field using hardwood cutting of 'Sunaga Wase' peach to establish mass production system of rooted cutting. Cuttings having 5 to 8㎜ in stem diameter showed the best rooting percentage, root number and root length. In the survival in field, the stem diameter of 8 to 11㎜ showed the highest survival rate and less consumption of storage nutrient during cutting. Those hardwood cuttings of 20 to 30㎝ in stem length showed the best rooting, and higher survival in field was obtained in 30㎝ long cuttings. After transplanting rooted cuttings to field, tree height and trunk diameter of 'Sunaga Wase' peach was 116㎝ and 20.4㎜, respectively.

Nd : YAG 레이저를 조사한 상아질 표면변화에 관한 주사전자현미경적 연구

임성삼,윤수한,박동성 大韓齒科保存學會 1997 Restorative Dentistry & Endodontics Vol.22 No.1

칼슘제 수관살포가 참다래의 과실 품질과 저장에 미치는 영향

임경호,나양기,임동근,마경철,조윤섭,김월수,이상현,박용서 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-

This study were carried out to improve Kiwifruit quality and storage life. Three kinds of calcium compound were sprayed and calcium content of fruits, weight loss during fruit storage and fruit quality were investigated. Calcium contents within leaves and fruit were lower in Clef-non treatment than that of control. The calcium content in fruit pericarp of Kalk-H and CaCl2 was 0.04 to 0.05% higher than that of control. Fruit weight and soluble solids content at harvest was a little higher but acidity and fruit hardness was lowered. Fruit weight loss of Kalk-H and CaCl2 treatment was 1.39 to 1.53% lower than that of control during storage. The soluble solids of ripen fruit was 1.0 to 1.3% higher in all treatment and 0.8% higher in Kalk-H treatment in 120 of after storage. Fruit hardness of control fruit was higher at harvest but that of CaCl2 treatmented fruit was 0.39㎏/φ 5㎜ higher in 120 days of storage.

구급차의 종류 및 주행속도에 따른 흉부압박법의 성공률에 대한 연구

임경수,인요한,황성오 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

Chest compressions performed in a controlled environment can generate adequate coronary perfusion pressure, but compression is frequently inadequate even when CPR is performed under optimal circumstances, In Korea the average highway of road is narrow and curved more than in other countries, and the back-space in ambulance of Korea is limited to perform CPR. As a result, the CPR in a moving ambulance is no effective in Korea. We studied the effectiveness of chest compression in a moving ambulance by the use of a CPR manikin(Skillmeter Resusci Annie, Laerdal company). The ambulance was driven without a warming siren with obeying all the traffic signals and rules. Eight emergency physicians performed a total of 8 sessions of 2 minutes of continuous chest compression on the manikin in the ambulance(Van-type). They did the same thing in truck-type ambulance. We compared the results between small ambulance(Van type) and large ambulance(Truck type). To compare the effectiveness of manual and mechanical cardiac massage, the mechanical cardiac resuscitator(Thumper: Michigan company) was used. The success rate of manual CPR in a constant speed was not different between the Van-type ambulance and Truck-type ambulance(p>0.05), but mean percentage of correct compression by mechanical chest compressor showed 100%(p=0.004). The success rate of manual CPR in driving at downtown was 67.4± 15.7 in Van-type ambulance, but that was 93.4 ± 5.2 in Truck-type ambulance(p=0.007). These results demonstrate that the performance of manual chest compression in a moving ambulance(Van type) is suboptimal. As the patient care area in the Van-type ambulance is much more spacious than that of the Truck-type ambulance, the diminution of compression efficacy in the smaller ambulance is consistent with the assumption that space is the most important factor in the ability to perform adequate CPR in a moving ambulance. Although the results were good in a truck-type ambulance, chest compression was performed for only 2 minutes. It is difficult for one person to deliver manual chest compression in a moving ambulance for a long period. Mechanical chest compression may be employed where manual compression is technically difficult to perform.

후두부 발작성 간질파와 동반된 양성 소아기 간질의 임상적 연구

유영수,이상도,김지언,임정근,박영춘 대한신경과학회 1996 대한신경과학회지 Vol.14 No.4