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교통사고로 발생한 쇄골 골절로 입원하여 한방복합치료로 호전된 환자 2예
강덕,강병수,정회준,신동훈,신경문,오지훈,양재우 한방재활의학과학회 2022 한방재활의학과학회지 Vol.32 No.3
To report improvement of 2 hospitalized patients who had clavicle fractures due to traffic accident with Korean medicine complex treatment. We collected a data from February 2020 to April 2022. A total of 2 patients were studied and we compared numeric rating scale (NRS), neck disability index (NDI), range of motion (ROM) at admission and discharge date of hospitalization. After receiving an average of 28.5 days of Korean medicine inpatient treatment, both patients had reduced NRS, NDI scores and increased ROM. After Korean medicine complex treatment, 2 patients with clavicle fracture showed to have been effective. But further studies need to be done.
Midazolam의 비강내 투여시 의식진정효과에 관한 연구
강덕일,이상호 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.4
The purpose of this study was to assess the sedative effect of intranasal spray with midazolam for management of the uncooperative 20 chileren aged from 24 months to 92 months whe required extensive treatment. The parients were given randomly a dose of 0.2mg/kg of intranasal placebo, intranasal spray with midazolam, and intranasal drop with midazolam. All the children were restrained in a pediwrap and were monitored with pulse oximeter for assessing the pulse rate and peripheral oxygen saturation. According to Fukuta's behavior rating scale, behavior was checked for evaluation of the clinical sedative effect. The obtained results were as follows: 1. Behavior score of intranasal spray with midazolam was lower than intranasal drop with midazolam(p<0.01). 2. Pulse rate was a significant change as a function of dental procedure(p<0.001), however the peripheral oxygen saturation was not influenced significantly by either adiministration route of drug or dental procedure. Clinically, intranasal spray with midazolam were safe and effective sedation in young children undergoing pediatric dental procedures.
강덕일,정문용,이창섭,이상호 朝鮮大學校 口腔生物學硏究所 1997 口腔生物學硏究 Vol.21 No.1
The use of general anesthesia as a special method of behavior management is necessary if certain handicapped or unmanaged patients be to receive dental treatment. This study was designed to report the result of 13 cases of complete oral rehabilitation under general anesthesia. The data were obtained from 13 patinents managed under general anesthesia at the Dept. of Pedodontics, Chosun Universit. The distribution of age, source of referral, primary reason for general anesthesia, preoperative physical status, oral condition, intubation methods, drugs used for maintaining the general anesthesia, types and extent of dental treatment, duration of procedure, duration of hospitalization, and postoperative complications were surveyed. The results were obtained as follows : 1. In distribution of age, most(92.3%) were younger than 10 years and mean was 5.2years. The major sources of patients(69.2%) came to the practice at their own intiative and the other(30.7%) were refered local dentist. 2. In the primary reason for general anesthesia, the majority of the patients(76.9%) were management problem and others(13.1%) were received general anesthesia because of mentally or physical handicapped. 3. In the preoperative physical status, the majority of the patients(92.3%) were in ASA class Ⅰ or class Ⅱ. In the preoperative oral condition, the mean number of caries teeth was 12. 4. Nasotracheal intubation was used in all patients and the drug used for maintaining the general anesthesia were Enflurane. 5. In the performed dental treatment, the mean number of teeth treated with amalgam 1.5, G-Ⅰ filling 2.1, resin filling 3.6, sealing 1.4, pulpotomy 0.7, pulpectomy 1.6, preformed crown 3.7, and Extracted teeth was 0.2 . The mean duration of procedure was 178 min, and the mean duration of hospitalization was 1.6days. 6. Of the 13 patients, postoperative complications developed in 3 patients(23%). Complication were postoperative fever.
康悳一,金容奭,崔在皓 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-
One of the requirements of a sensing system for feedback control of gas metal arc welding(GMAW) is the capability to determine the metal-transfer mode. Beacause the operating boundary for the desired transfer mode. expressed as a function of mass input, may vary due to conditions beyond the control of the system, a means of deteccting the transfer mode during welding is necessary. To observe the metal transfer, Our reaerch utilize the LBLS(Laser Back Lingtening System). LBLS is used He-Ne Laser as the Backlightening source. He-Ne laser is expanded and spatially filtered into a 20mm diameter collimated beam and used to illuminate the object represented by an opaque sphere. Thus it is be used to form a shadowgraph of the sphere. By using the LBLS, we know that welding current is main factor of metal transfer. Approached to optimum metal transfer, we used pulsed current GMAW method. But pulsed current GMAW has the problem to determine new welding condition. We study the proper welding codition for the pulsed current GMAW.
$CO_2$ 용접에서 전류 펄스 조건이 스패터 발생에 미치는 영향
강덕일,최재호,장영섭,김용석 대한용접접합학회 1998 대한용접·접합학회지 Vol.16 No.4
In this study, the effects of the current pulsing conditions, on the spatter generation rate during the $CO_2$ gas metal arc welding (GMAW) were investigated. Normally using the inverter type power supply, of which the welding current waveform was regulated to reduce the spatter generation rate, but in this study pulsing was imposed on the welding current. Observation of the metal transfer phenomena during the pulsed current GMAS indicated that the droplet transfer from the electrode via the short circuit transfer and the repelling transfer mode could be minimized by selecting optimum combinations of pulsing parameters, which include base and peak current, base and pak duration. It was also demonstrated in this study that proper combinations of the pulsing parameters led to reduce generation of spatters during GMAW shielded by $CO_2$ gas.
강덕만(Kang Duck-Man),안해영(An Hea-Young),성덕룡(Sung Deok-Yong),김성일(Kim Sung-Il),박용걸(Park Yong-Gul) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
This study is objected by analyzing whether it is applied to the analysis model considering the track stiffness or not when the railway bridge is designed or reviewed for the dynamic stability. It is performed that the analysis model is verified by comparing the field test result with the analysis result. Also, The dynamic response of railway bridge through the existing analysis model is compared with the analysis model considered the track stiffness. In addition, it is performed by analyzing the model considering the stiffness of concrete track. Therefore, this study is suggested that the design of railway bridge apply to the existing analysis model considering the mass of track and the dynamic stability review of railway bridge apply to it considered the stiffness & mass of track. Also, it is suggested that the stiffness of concrete slab on the bridge must consider when it is designed or checked over the dynamic stability.