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이온교환체로서 Polyphenylene Sulfide Sulfonic Acid에 관한 연구
전병광,손원근,서구원,맹학영,김동철,송해영 충남대학교 공업교육연구소 1994 論文集 Vol.17 No.1
Sulfonated poly(phenylene sulfide)(S-PPS) was prepared by the reaction of poly(phenylene sulfide)(PPS) with fuming sulfuric acid. The sulfonation was confirmed by the high intensity band of the SO_3H group at 1190 cm^-1. Thermally crosslinked S-PPS was used for a cation exchange polymer with high thermal stability. The ion exchange capacity of soluble S-PPS(H-form) and insoluble S-PPS(H-form) was 5.16meq/g and 3.50meq/g, respectively. The ion exchange capacity and IR absorbance at 1190cm^-1 of S-PPS were decreased as the curing temperature was increased.
수학교육을 위한 웹 기반 진단-형성평가 시스템의 개발과 활용
유병훈,강수구 한국수학교육학회 2003 수학교육 Vol.42 No.5
In this paper, we studied how to organize and develop a web based diagnostic-formative evaluation system. We investigated the interest of students about the system and analyze their scores after we applied this system to 10-th grade students for 10 months.
스포츠센터 조직의 서비스 지향성이 종업원 만족에 미치는 영향
이병익,강정구 龍仁大學校 體育科學硏究所 2008 體育科學硏究論叢 Vol.17 No.1
The meaning of this research lies in providing useful basic data that can be utilized in the strategic respect of internal marketing by investigating how sports center employees’ service orientation affects employees’ satisfaction. Employees' of sports center in Seoul region were selected as the subjects of this survey and 248 participants were sampled by Convenience Sampling Method. Resulting data were processed by Frequency Analysis, Exploratory Analysis, T-Test, one-way ANOVA, Correlation Analysis, Regression Analysis using SPSS 11.0 program. The results from these research methods and analyses revealed the followings: First, results from investigation of service leadership and service system, sub-variables of service orientation according to individual characteristics, revealed that there were significant differences in the level of education, and human resources management showed differences in age, level of education, and monthly income. Second, the results from investigation of organizational involvement, a sub-variable of employees’ satisfaction according to individual characteristics, indicated that there were significant differences in age, level of education, and monthly income; and job satisfaction, in gender, age, level of education and monthly income; and intention of leaving job, in age and level of education. Third, the results from regression analysis of service orientation and employees’ satisfaction revealed that organizational involvement had significant influences on service leadership, service contact, and service system, and that job satisfaction, on service leadership, service contact, service system, and human resources management, and that intention of leaving job, on service leadership and service contact.
崔明龜,宋炳國 釜慶大學校 1998 釜慶大學校 論文集 Vol.3 No.1
While Korean Consititutional Law guarantees all citizens the property right, it permits to restrict this right for public necessities. However, Korean Constituitional Law has a clause that the restricition should be made by law and compensation thereof shall be paid. But in case of urban planning intervention, the government exercises the re- striction without compensation for it. It is questionable that the government can force the landlord to accept all disadvantage for public necessities without paying proper compensation. The theoretical apporoaches to solve this problem are based on the principles of equality and guarantee of private right in the Constitional Law. The contents of this sutdy are as follows, A. The explain for the content of urban planning intervention B. Whether urban planning intervention is correspond to special sacrifice C. What is legal basis of compensation for urban planning intervention D. Conclude The compensation for urban planning intervention should be admitted and the theory concerning this should be set up through further studies.
유병대,김성진,이명갑,서영조,강재구,이동필 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4
Background: Good documentation of electrical injuries at the time of presentation is very important to emergency management, so this study was designed to investigate the clinical characteristics and the outcomes of patients with electrical injury. Methods: A review of 75 cases of electrical injuries admitted to our hospital via the emergency department over a 4 year period from 1996 to 1999 was conducted. Results: There were 49 patients with high-voltage injuries and 19 patients with low-voltage injuries. All but 4 patients were males, with a mean age of 29.5 years. The most common type of injury was electrothermal burn. The most common point of entry was hand. The average size of burn wounds was 14.5% TBSA in the high-voltage group and 2.5% in the low-voltage group. Forty-nine(72.1%) of the injuries were work related. The number of patients with compartment syndrome was 19, and fasciotomies were performed in all but one patient. Myoglobinuria was noted in 22 patients, but no patient developed acute renal failure due to myoglobinuria. In the high-voltage group, 10 limb amputations were performed. Complication were observed in 12 patients. The most common complication was neurological injury. The average length of hospital stay was 50.7 days in the high-voltage group and 13.8 days in the low-voltage group. The overall mortality rate was 4.3%. Couclusion: Prevention of electrical injuries is very important. Education and compliance with safety measures, as well as basic knowledge and precaution in dealing with electricity, are essential to avoid these injuries.
편측성 하악과두증식증에서 수술방법에 의한 술후 골격구조의 대칭성에 관한 비교연구
홍광진,이원학,조윤주,이정구,민병진 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.2
In patients with unilateral condylar hyperplasia, increased length of the condylar neck causes deviation of the mandible to the opposite site, resulting in facial asymmetry, but the arch form and general contour of the displaced mandible is approximately symmetric. So, the unilateral condylectomy have been prefered surgical method among the surgeons. The purpose of this study is to analyze the postoperative results comparatively following two different surgical methods, condylectomy and ramus surgery, in unilateral condylar hyperplasia. Case of 6 patients with the unilateral condylar hyerplasia were analyzed in this study, 3 case of the condylectomy only, 3 cases of the ramus surgery, Clinical and radiographic evaluations were tried for comparison. In conclusion, comparative results between two groups did not show any significant difference,but we confirmed that unilateral condylectomy could be a excellent surgical methods in unilateral condylar hyperplasia thinking over the unique morphological characteristics of it.
( Byeong Gu Song ),( Harin Rhee ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Retroperitoneal chylous effusion (Chyloretroperitoneum) is very rare unlike peritoneal chylous effusion. We report a case of infected chyloretroperitoneum that occurred in a 57 year old woman who has a congenital urinary tract anomaly. The patient was admitted with fever, abdominal distention and altered mental status. Blood pressure decreased to 70/40 mmHg, and laboratory examinations revealed systemic leucocytosis with a predominance of neutrophils and a high C-reactive protein (CRP) level of 22.18 mg/dL. The blood urea nitrogen (BUN) and serum creatinine levels had increased to 97.3 mg/dL and 3.66 mg/dL. However, serum total cholesterol, total protein, and albumin levels had decreased to 61 mg/dL, 4.1 g/dL, and 1.7 g/dL. Abdominal computed tomography (CT) revealed a large multiseptated cystic lesion in the left retroperitoneum and wedge-shaped hypodense lesions in both kidney which were suggestive of acute pyelonephritis (APN). She was admitted to the intensive care unit (ICU). She was administered fiuid resuscitation, inotropic infusion, and intravenous antibiotics. Also she received continuous renal replacement therapy (CRRT). On admission day 4, an ultrasound-guided aspiration was performed in the retroperitoneal cystic lesion, which drained a milky fiuid. The drainage fiuid was milk-like and turbid in appearance and had high triglyceride levels of 146 mg/dL; the patient was diagnosed with chyloretroperitoneum. Also Pseudomonas aeruginosa was cultured on the fiuid. The patient was effectively treated with profound drainage and somatostatin therapy with total parenteral nutrition (TPN). We reviewed the literature and discussed the aetiologies, diagnosis, and treatment of infected chyloretroperitoneum.
( Byeong Gu Lee ) 국방대학교 안보문제연구소 2011 The Korean Journal of Security Affairs Vol.16 No.2
Previous studies of the civil-military gap have argued that the difference in values, perspectives, and opinions between civilians and the military matters because it determines military effectiveness. Empirical analyses of the civil-military gap, however, have been rare and due to the theoretical and methodological weaknesses of those studies it is difficult to draw a meaningful conclusion about the implications of the civil-military gap for military effectiveness. This study attempted to fill this void by examining the impact of ideology and the military experience gap on defense spending as an element of military effectiveness. Specifically, it tested if the ideological gap between the United States Congress and the military has any causal impact on defense spending level. It also examined whether the level of military experience in the United States Congress and Cabinet influences defense spending. Multivariate Ordinary Least Squares analyses were employed to estimate the coefficients. This study presents three major findings. First, the ideology and military experience gap did not have an independent effect on defense spending. Second, to the extent that ideology and the military experience gap exhibit a meaningful impact on defense spending, the results show they have interaction effects. Specifically, I found that the ideology gap has a positive interaction effect with Republican administrations. As for the military experience gap, this study found that it has an interaction effect with external threats. Third, contrary to conventional wisdom, the results indicate that Democratic administrations spend more on national defense than Republican administrations. In closing, this study calls for scholarly efforts to reevaluate our understanding of the implications of the civil-military gap.