뇌동맥류 파열에 의한 급성 경막하 혈종이나 뇌내혈종을 동반한 혼수상태 환자에 대한 뇌혈관 조영술을 시행하지 않은 응급수술

황수현,박용규,백선하,박인성,김은상,정진명,한종우 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.10

Neurologically based clinical grading scales offer excellent prognostic information for the patient suuffering diffuse subarachnoid hemorrhaging. These grading scales are less applicable to patients with life-threatening intraparenchymal or subdural hematomas after aneurysmal rupture. During 2 and half years. 9 patients(ICH;5.SDH:1. ICH+SDH:3) in a comatose state with brain stem compression syndromes documented by computerized tomographic scans have undergone emergent operation without angiography in our neurosurgical departement. Each patient was so critically ill that we believed it unwise to delay craniotomy for diagnostic angiography. The average delay from the detection to operation was 2 hours. The origin of the hematoma was identified as a berry aneurysm of the middle cerebral artery bifurcation in seven patients and a posterior communicating artery aneurysm in two patients. One patient had a good recovery. two patients recovered with hemipardsis and mild cognitive dysfunction. two patients were vegetative and died due to pneumonia. and four patients died due to brain swelling within two weeks postoperatively. Emergent craniotomy with empiric exploration of appropriate subarachnoid cisterns after hematoma decompression may be life-saving management in some cases. The delay imposed for diagnostic angiography may be avoided in attempts to save vital minutes of severe brain stem compression.

위암수술 환자에서의 cp 개발과 cp적용에 따른 질 향상 활동에 관한 연구

임은주,황순휘,박도중,하광일,배현주,김형호 한국의료QA학회 2006 한국의료질향상학회지 Vol.13 No.2

Background : In an era of increasing medical costs, safe reduction in postoperative stay has become a major focus to optimize utilization of healthcare resources. The authors aimed to evaluate the clinical significance of the critical pathway(CP) for gastrectomy patients by implementing standardized postoperative management and electronic medical records. Method : From August 2006 to April 2007, critical pathways were introduced to inpatients and outpatients with gastric cancer. 60 consecutive patients undergoing distal gastrectomy were randomly divided into two groups; 30 CP group(A) and 30 non-CP group(B). Simultaneously, we also retrospectively reviewed the records of 438 patients(C:control group) who were able to be enrolled in CP program. We compared group(A) with (B), (C) in terms of hospital stay, complication rate, use of antibiotics and hospital costs. Patient satisfaction was surveyed by questionnaires. Result : There was no significant demographic difference between group(A) and (B). Of 30 patients in group(A), 5 drop-outs and 14 variances occurred. The mean postoperative hospital stays(Laparoscopy-assisted distal gastrectomy: LADG/Open distal gastrectomy: ODG) were 7.6/10.5 days for the group(A), 8.9/12.7 days for the group(B) and 12.6/14.5 days for the group(C) (p=0.02 in LADG). The total hospital cost of group(A) had a tendency to be less than that of group(B) and the amount of hospital cost per day in group(A) was significantly higher than that in group(B). The usage rates of the first generation antibiotics were 73.33%, 63.33%, and 59.2% in group(A), (B), and (C), respectively. Patients’ satisfaction had a tendency to be higher in the CP group than non-CP group. Conclusion : The mean hospital stay in LADG patients was shortened meaningfully and hospital cost per day was enlarged after introduction of clinical pathway. It is necessary to apply a number of patients to the critical pathway and to make an effort to reduce the variation and drop-out rates.

기혼여성의 의사소통유형과 결혼생활만족도 연구

황경애,하은영 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

The purpose of this study was to find out communication pattern and marital satisfaction in married women. The 136 participants in the sample were married women in Jinju City. Married women answered the questions about their communication pattern and marital satisfaction. Frequency analysis and ANOVA were used for data analysis in SPSS Win. The results were as follows : (1) Married women showed following communication pattern in order ; blaming pattern(27.25) > being irrelevant pattern (26.29) > super-reasonable pattern(24.01) > placating pattern(21.77) > congruent pattern(21.59). (2) According to women's age, married women showed positive degree about their communication pattern(blaming pattern, being irrelevant pattern, congruent pattern). (3) According to women's job, married women showed positive degree about their communication pattern( super-reasonable pattern). (4) According to husband's job, married women showed positive degree about their communication pattern(blaming pattern, being irrelevant pattern). (5) According to marital maintaining years, married women showed positive degree about their communication pattern(placating pattern, blaming pattern, being irrelevant pattern). (6) According to women's age, married women in their twenties, showed more healthy degree about their marital satisfaction.

삼축시험에서 비연합 Mohr-Coulomb모델의 변형경화에 대한 연구

황은하 金烏工科大學校 1999 論文集 Vol.20 No.-

For a Mohr-Coulomb material with non-normality, new type of instability of path is examined. The derived inclination angle of the band at initiation differs from that of instability of configuration. When an elastic response is added to the plastic, new type of instability of path would occur earlier than instability of configuration. If an elastic response is ignored, two type of instability would occur simultaneously. According to Drucker & Li[1], the instability of configuration does not simulate the strain hardening of homogeneous deformation specimen. But the slightest elastic response, no matter how small, will bring about the strain hardening of specimen by instability of path for a Mohr-Coulomb material.

압출가공시 탄성계수의 변화가 기공발생 및 성장에 미치는 효과

황은하 國立金烏工科大學校附設生産技術硏究所 1994 産業技術開發硏究 Vol.10 No.-

Using large deformation finite element analysis together with Gurson's constitutive model, we have studied the behavior of microvoids nucleated at second phase particles during direct axisymmetric extrusion. A constitutive equation taking into account the effect of the void volume fraction on the macroscopic elastic moduli has been used. The comparison between the results obtained by employing the present constitutive equation and the original we clarified that the void volume fraction dependency of macroscopic elastic moduli has a substantial effect on the void distribution in extruded rod.

인장시험시 기공발생 및 성장에 대한 해석

황은하 金烏工科大學 1989 論文集 Vol.10 No.-

Using large deformation finite element analysis together with Gurson's constitutive model, we have studied the behavior of microvoids nucleated at second phase particles during tension test. In the analyses the material has no voids initially:but high voidage developed in the center of the neck where the hydrostatic tension peaks, leading to the formation of a macroscopic crack as the material stress carrying capacity vanishes.

압출가공시 기공발생 및 성장에 대한 해석

황은하 國立金烏工科大學校附設生産技術硏究所 1989 産業技術開發硏究 Vol.5 No.-

Using large deformation finite element analysis together with Gurson's constitutive model, we have studied the behavior of microvoids nucleated at second phase particles during direct axisymmetric extrusion. Three different void nucleation and growth criteria were analyzed. The finite element results show that the void distribution in extruded rod is very sensitive to the void nucleation and growth criterion.

밀폐된 점탄성 압력 용기의 모드 I 균열 해석

황은하,오근 금오공과대학교 2008 論文集 Vol.29 No.-

In this paper, the stress intensity factor, energy release rate and crack opening displacement are computed using the finite element method for closed axisymmetric viscoelastic cylinders with the circumferential cracks. The triangular elements with quarter point nodes are used to describe the stress singularity around the crack edge. Viscoelastic materials are assumed to behave elastically in dilatation and like a three-parameter standard linear solid. Viscoelastic relations are also derived by using the elastic-viscoelastic correspondence principle and compared with the numerical results to show the validity of the presented method.

교정치료후 중심위 교합이상에 관한 임상적 연구

문은하,황현식 전남대학교 치과대학 1992 전남치대논문집 Vol.4 No.1

If the centric prematurity occurs after orthodontic treatment, it creates centric slide regarded as a possible factor in the cause of temporomandibular disorder and/or postorthodontic relapse. The purpose of this study was to investigate the manner of centric prematurity and centric slide in postorthodontic patients. The 36 orthodontic patients who had been treated with edgewise appliance at least 3 months previously were used in this study. After recording centric relation by the leaf gauge technique, the centric prematurity and centric slide were studied using SAM2 articulator and mandibular position indicator. The results were as follows; 1. The highest percentage of centric prematurities were found on the second molars. 2. The buccal incline of the palatal cusp was the most frequent area of centric prematurities in the maxilla, while the lingual incline of the buccal cusp was the most frequent area in the mandible. 3. There were no trends in the direction of centric slide on the mandibular position indicator. 4. There were no significant differences in centric discrepancies between the premolar extraction and nonextraction group.

교정치료후 중심위 교합이상에 관한 임상적 연구

문은하,황현식 대한치과교정학회 1993 대한치과교정학회지 Vol.23 No.4

If the centric prematurity occurs after orthodontic treatment, it creates centric slide regarded as a possible factor in the cause of temporomandibular disorder and/or postorthodontic relapse. The purpose of this study was to investigate the manner of centric prematurity and centric slide in postorthodontic patients. The 36 orthodontic patients who had been treated with edgewise appliance at least 3 months previously were used in this study. After recording centric relation by the leaf gauge technique, the centric prematurity and centric slide were studied using SAM2 articulator and mandibular position indicator. The results were as follows : 1. The highest percentage of centric prematurities were found on the second molars. 2. The buccal incline of the palatal cusp was the most frequent area of centric prematurities in the maxilla, while the lingual incline of the buccal cusp was the most frequent area in the mandible. 3. There were no trends in the direction of centric slide on the mandibular position indicator. 4. There were no significant differences in centric discrepancies between the premolar extraction and nonextraction group.