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RISS 인기검색어
- 검색키워드
- 저자 : Jeong-Seob Shin (검색결과 309 건)
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신극선,탁관철,윤정섭 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.1
Eighty-three consesutive free-flap transfers were reviewed to analyze distribution of type of reconsturctions, kinds of donor flaps as well incidence of complications. The role of emergent exploration and the effect of preoperative wound conditions in flap survival were evaluate. Free flap transfer for head and neck reconstruciton was most common as 46 cases, followed by for upper extremity of 22cases, for lower extremity 12 cases and for trunk & breast 3 cases. Two patients exhibited within 7 days after the operation because of respiratory complications. Eight flaps exhibited signs of circulatory insufficiency between 5 hours and 7 days. three were managed conservatively with ultimate partial necrosis of the flaps. Five flaps required return to the operating room. On exploration, early arterial occlusion was revealed in 1 flap, late arterial occlusion in 2 flaps, late venous occlusion in 1 flap and hematoma in 1 flap. The average time from the first abnormal examination to exploration was 2.4 hours. There were no false-positive explorations. Two free flaps in which abonormal findings were first noticed 4 days and 7 days after microsurgical transfer respectively failed in spite of the correction of the cause of circulatory compromise. The remaining 3 flaps were salvaged following the correction of the cause. Recipient vessel problems such as irradiation and infection were the most common cause of circulatory crisis. Among the five flaps requiring return to the operating room. single vein was anastomosed in four flaps and two veins in the remaining one. In the totally failed two flaps only songle vein was anastomosed. The results of this study demonstrate the efficacy of clinical monitoring and the role of early exploration. Precautious selection of recipient vessels and two vein anastomosis are recommended for safe and better prognosis.
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신정섭,김세환 江原大學校附設體育科學硏究所 1997 江原大學校附設體育科學硏究所論文集 Vol.- No.21
This study was taken their weight and measured eight and measured kinds of physical fitness for the study intended for fourteen weight lifters in Kangwon Physical High School. The measure had been carried for ten days before the game. We have also measured the physical fitness while reducing their weight for two days. We compared the result after the loss in weight with that of before. As a result, we have the conclusion as follow 1. According to the statistics, there was no significant difference in muscular fitness (sit- up, back muscular strength, vertical arm pull test) between the two results. 2. There was no significant difference in leg muscula power (sarjent jump) statistically. 3. There was no significant difference in muscula endurance (handstand push-up, pull squat). 4. Statistically, we had no significant difference in agility (side-step) 5. The appropriate weight for lifters is about two kilograms lower than usual. Two kilograms mean about three percent of his own weight. As mentioned above, we can see that the method, the degree and the period of the loss in weight don't influence the physical strength for weight lifters. Therefore, they need to keep their weight proper all the time within the limit of around two kilo-grams of weight limits.
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윤정섭,이상헌,신극선,이훈범 대한성형외과학회 1992 Archives of Plastic Surgery Vol.19 No.3
Post radical mastectomy reconstruction using a transverse rectus abdominis myocutaneous flap involves certain problems at the donor site as the difficulty in closure secondary to excessive tension and the development of a postsurgical abdominal hernia. The usage of alloplastic materials such as Marlex may also cause eventual weakness as well as a foreign body reaction. While autogenous tissues may be used for a remote myocutaneous flap transposition or a free-tissue transfer, the problems such as a donor site defect, atrophy secondary to denervation, etc. exist. To avert these problems, we propose to use the autogenous tissue in a manner that provides a dynamic support in addition to the functional reconstruction. The components separation method decribed here separates the muscle groups of the abdominal wall, and allows several advantages over treating the abdominal wall as a single unit. One of the advantages is the increased mobility of individual muscles. The allows transferance of the flap over a greater distance which in turn reduces excessive tension and makes closure of the donor site defect easier. Thus, this procedure provides a dynamic support and reduces the incidence of hernia. We experienced 3 cases of abdominal wall reconstruction after TRAM flap transfer(one case after bilateral TRAM flap, two cases after contralateral unilateral TRAM flap) using external oblique muscle sharing or rectus sharing. So we present clinical cases of the abdominal wall reconstruction after TRAM flap transfer with a review of the literature.
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임호섭,신경철,함웅,채정호,김한오,정찬호 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.2
Objectives : Patient's behavior features are important factors which influences the clinical judgement including diagnosis. However, most psychiatrists build up a picture of patients' behavior from an amalgamation of their own brief observations and nurses' reports, which often lack in the objectiveness. Several behavioral scales have been developed to alleviate this difficulty, but the poor efficiency and reliability of these scales have made them less useful. The recently developed Ward Daily Behavior Scale is an objective tool for evaluating all the daily noteworthy behaviors of patients, and is easily applicable to wide ranges of diagnoses and ages. This study tried to prove the reliability and validity of the Ward Daily Behavior Scale-Korean version. Methods : The 112 patients, 63 males and 49 females, at a chronic psychiatric inpatient ward were selected as subjects. Experienced and unexperienced nurses rated patients' behaviors independently with the Ward Daily Behavior Scale-Korean version, after observing behaviors of subjects for 8 hours during day duty time. And then we tested the inter-rater reliability, internal consistency, and concurrent validity of this scale. Results : The Ward Daily Behavior Scale-Korean version proved to be both reliable and valid for measuring of behaviors of psychiatric inpatients. Conclusions : The Ward Daily Behavior Scale-Korean version will be a valuable tool to observe and quantify patients' behavior in psychiatric wards.
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이종현,신장규,이상룡,천희곤,조찬섭,심준환,류인식,박석홍,허정준,박기열 경북대학교 센서기술연구소 1994 연차보고서 Vol.1994 No.-
자동차의 air-bag 장치에 실용될 수 있는 압저항형 단결정 실리콘 가속도센서 칩을 개발하기 위하여 결정 실리콘 미세구조의 제조방법을 확립하고, 단위공정의 검증을 통하여 일괄공정에 의한 PROTO-TYPE 칩을 만드는 기술을 연구하였다. 단결정 실리콘 미세구조는 선택확산법을 이용하여 정확히 선택된 영역에만 air-gap을 형성하여 미세구조의 측면식각을 방지하는 선택확산법에 의한 실리콘 마이크로머시닝 기술로 제조하였다. 일괄공정을 위한 단위공정확립을 위하여 PROTY-TYPE 8빔 브릿지형 가속도 센서를 제조하였다. 제조된 칩의 가속도에 따른 출력전압은 선형성을 나타내고 있으며, 감도는 약 50 ㎶/V·g로 나타났다. 이 감도는 50G용 가속도센서의 사양을 만족하지 못했다. 이는 공정에 의한 문제라기 보다는 가속도센서의 시뮬레이션에 의해 설계한 구조가 이미 원하는 감도에 못 미친다는 것으로 생각된다. 따라서 2차 공정으로 제조될 가속도센서의 파라미터를 SuperSAP 유한요소 패키지를 이용하여 실리콘 미세구조부의 파라미터에 따른 특성을 시뮬레이션하였다. 설계된 50G용 가속도센서의 mass Pad의 반경 및 빔 길이, 빔 폭, 빔 두께, 그리고 mass의 각 파라미터 값은 700 ㎛, 120 ㎛, 5 ㎛, 1.0 ㎎ 이었다. 반도체 공정기술, 관성질량 제조법 및 선택확산을 이용한 마이크로머시닝을 사용하여 일괄공정으로 8빔 브린지형 가속도센서를 제조하였다. We researched the establishment of the silicon microstructure fabrication technique to develop a piezoresistive type silicon acceleration sensor chip and the technique to make a proto-type chip by the verification of the unit-process. Silicon microstructure is fabricated silicon micro-machining by selective diffusion method. This method prevent a side-etching of microstructure because selective diffused region is only formed an air-gap. We fabricated a proto-type 8-beam bridge-type acceleration sensor to establish the unit-process for the batch-process. The output voltage of the chip represented linearity with acceleration, and the sensitivity was about 50 ㎶/V·g. But this sensitivity dosen't satisfy the requirements of a practical acceleration sensor. The cause of this result is assumed not process problem, but the structure designed by simulation isn't suitable already. Threfore, the characteristics of parameters of the acceleration sensor that will be fabricated by 2nd-process is simulated by SuperSAP finite-element package. The determined parameter values of beam length, beam width, beam thickness, mass, and mass radius are 120 ㎛, 5 ㎛, 1.0 ㎎, and 700 ㎛, respectively. We fabricated 8-beam bridge-type acceleration sensor by batch-process using a semiconductor process technique, proof-mass fabrication method, and micromachinig using selective diffusion.
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이성식,신정호,정갑섭 한국화학공학회 1984 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.22 No.4
기-액 계면, 흡착 조작에서 계면과 액 본체 사이의 흡착열을 구하기 위하여 이상용액과 단분자 흡착의 가정하에서, 포말간의 동반액체를 고려하여, 회분조작에 대한 물질수지로부터 흡착열을 구하는 관계식을 도출하였다. Sodium lauryl sulfate와 dodecylbenzene sulfonate에 대하여 4 × 10^(-3)㏖/ℓ이하에서 이 관계식과 회분흡착 실험자료에서 흡착열을 구하였다. 그 겨 ㄹ과는 표면과잉 농도에 의하여 계산된 흡착열과 일치하였다. 이들 각 용액은 4 × 10^(-3)㏖/ℓ 이하의 농도에서, 기-액 계면 흡착모형은 단분자 흡착으로 생각되었다. In order to investigate the heat of adsorption at the interface between surface phase and bulk liquid of sodium lauryl sulfate and sodium dodecylbenzene sulfonate in the bubble-foam adsorptive separation, two equations were derived from the batch analysis around the overhead flow of the batch bubble adsorptive separation under the assumption of ideal solution and monolayer. Using the experimental data obtained from the batch operation below the concentration of 4 × 10^(-3) ㏖/ℓ sodium lauryl sulfate and sodium dodecylbezene sulfonate respectively, the heat of adsorption were calculated by two equations. The heat of adsorption calculated by the equation, which was derived considering the bulk liquid accompanied by the bubbles, was constant within the range of experimental concentration and was coincided with the value calculated by surface excess.
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작은 유로 내에서의 흐름응축 열전달 (Ⅰ)-새로운 실험기법의 개발-
신정섭(Jeong Seob Shin),김무환(Moo Hwan Kim) 대한기계학회 2004 大韓機械學會論文集B Vol.28 No.11
With traditional experimental methods such as the secondary fluid (e g, water) calorimetric method, it is very difficult to accurately test the local condensation heat transfer inside mint-channels Hence, there are large discrepancies between the results of previous studies The experimental methods as well as unidentified sources of uncertainties could be reasons for such discrepancies In this study, innovative experimental techniques were developed to measure the in-tube condensation heat transfer coefficient. With these techniques, very low heat dissipation rates such as several watts from the mini-channel could be estimated and low mass flow rates below the 0 1 kg/h could be measured with reasonable uncertainties To the authors' knowledge, these techniques provide a unique experimental apparatus for measuring the condensation heat transfer coefficients inside the sub-millimeter hydraulic diameter single channels.
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