海運産業에서 傭船의 經濟的 價値에 관한 考察

안기명,이상직,이광수 한국해양대학교 국제해양연구소 2001 韓國海洋大學校 人文社會科學論叢 Vol.13 No.1

Abstract The purpose of this study is to emphasize the importance of chartering decision in the shipping firms. In fact, skipping industry does the business in a completely open market between shipping firms and cargo owners all over the wolrd. This connection, the level of risk on the business managent of shipping firm is relatively high compared with other industries. In particular, the decision on the ship purchase, ship building and ship chartering is very important element to decide the future of the company. Accordingly, this paper will study the essential elements which will effect to the decision of the ship chartering and the basic reasons why shipping firms make the decisions of ship chartering with the burden of high risk management. According to the above results of the study, shipping firms make chatering decisions even though they are on the high level of risk in order to improve cash flow and profit of the company. Furthermore, the shipping firms operating ships efficiently and positively run into chartering market with high level of risk on chartering decision. It shows a shipping firm has no particular option except the derision of chartering in order to survive and grow up continuously under unlimited competition in the world-wide open market.

입원 환자 영양검색 전산 프로그램 개발

안수미,윤기영,신연명,최경현,임근승,장문경,송윤미,공은희 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2

Background : About 30% of patients in the hospital are under nourishment. A large portion of people are undernourished when they are admitted to the hospital and in the majority of these, undernutrition develops further while in hospital. Patient-Generated subjective global assessment(PG-SGA), a method of nutritional assessment based on clinical judgment, has been widely used to assess the nutritional status of adults for both clinical and research purposes. Modified PG-SGA can be used as a nutrition screening tool, and a comprehensive nutrition assessment is desirable for those who are malnourished. The purpose of this study is to develop a simple, reliable and valid nutrition screening program(NSP). Methods : We applied the nutrition screening program(NSP) to adult inpatients who are at risk of malnutrition using the Modified Patient-Generated subjective global assessment(PG-SGA) and objective assessment(electrical medical record data). Results : Therefore simple and beneficial NSP is developed for patients with severe malnutrition. Using NSP. nutritional information of the severe malnutrition patient should be shared with the physicians and they should be taken care of by clinical dietitians to improve their nutritional status. Conclusion : The Modified PG-SGA and nutrition screening tool are simple, reliable and valid nutrition screening program(NSP).

밀기울배지를 이용한 Bacillus macerans Cyclodextrin Glucanotransferase 생산과 효소 특성

선우양일,안태진,김동환,박인호,채기수,김광 東亞大學校 附設 基礎科學硏究所 1994 基礎科學硏究論文集 Vol.11 No.1

Bacillus macerans cyclodextrin glucanotransferase(CGTase)를 전분흡착법과 DEAE-cellulose 칼럼 크로마토그래피로 정제하였다. 효소의 분자량은 67,000이었고 monomer였다. 정제된 효소는 전분을 α-β- , ?? 전환시켰으며, CD생성비율은 각각 1:1.68:0.32 였다. α-CD와 D-glucose의 coupling반응 초기에는 maltohexose가 주로 생성되었고, 그 후에 다른 oligosaccharide 들이 생성되었다. α-CD의 가수분해반응 초기에는 주로 maltotetrose가 생성되었고 그 이후에는 소량의 다른 oligosaccharide들이 생성되었다. 정제된 효소의 좋은 기질인 maltotrisoe로부터 maltosyl이나 D-glucopyranosyl group이 전이될 수 있는데, 본 연구에서는 D-glucosyl transfer가 우세하다. Bacillus macerans cyclodextrin glucanotransferase(EC 2.4.1.19: 1, 4-α-D-Glucan 4-α-D(1, 4-α-glucano)-transferase, CGTase) was purified by the technique of starch adsorption and DEAE-cellulose column chromatography. The molecular weight of the enzyme was 67,000, consisting of a subunit. The enzyme converted starch into α-β- and ?? in the relative amounts of 1:1.68:0.32, respectively. In the early reaction period, maltohexose was formed mainly by the coupling reaction of α-CD with D-glucose and then other oligosaccharides. Maltotetrose was formed mainly from α-CD in the initial stage of hydrolysis of the enzyme and then small amount of other oligosaccharides. Maltotriose was a good substrate for the enzyme and maltosyl or D-glucopyranosyl group can be transfered from this sugar. In this work, D-glucosyl transfer was prefered.

비만을 동반한 위암 환자에서 두 병을 같이 수술 치료한 경험(증례)

최경현,윤기영,문형환,신연명,서경원,안수미,송윤미,석정희,정경연,이은하 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Obesity is growing problem in Korea. We had a case of bariatric surgery during gastric cancer operation. Patient was 29 year old Korean lady with early gastric cancer located in the lesser curvature side of the middle 1/3 of the stomach. Her body weight was 89 kg, height 163 cm, and thus body mass index was 33.5 kg/m2. Preoperative blood pressure was 130/90 mmHg, hemoglobin 12.9 g/dL, total lymphocyte count 3,280/mL, serum albumin 4.3 g/dL, CEA 1.1 ng/mL, CA 19-9 9.1 ng/mL, and alpha fetoprotein 2 ng/mL. Another associated disease was right thyroid follicular neoplasm. The chest X-ray was normal. After IM injection of 2,500 units of heparin 30 minutes before the induction of general anesthesia, she received curative subtotal gastrectomy and Roux en Y gastrojejunostomy when a malabsorption loop of 120 cm jejunum was incorporated between the Treitz ligament and the end to side jejuno-jejunostmy site at May 29th 2006. Her postoperative course was uneventful except a minor wound seroma and the elevations of serum amylase(up to 4 folds) and lipase(up to 2 folds). She lost her body weight 9 kg in 5th, 21 kg in 7th, and 27 kg in 10th postoperative months to became 61.5 kg. On follow up exams in July 2008, she gained 4 kg to overcome her weakness and fatigue. From the above result, the incorporation of a malabsorption loop during reconstruction phase of gastric cancer operation was a good option for obese gastric cancer patients especially in cases of early gastric cancer.

업무 관련성 견갑상 포착 신경증이 의심되는 3례

정두신,성기범,신현길,안무영,김형수,홍영의 大韓産業醫學會 1999 대한직업환경의학회지 Vol.11 No.4

Objectives : Entrapment of the suprascapular nerve is frequently overlooked in the differential diagnosis of shoulder pain. Methods : Suprascapular entrapment neuropathy is a well-defined clinical entity and EMG and NCV is used to confirm a diagnosis. But the diagnosis typically not considered until patients develop severe weakness secondary to atrophy of the spinous musculature that the nerve supplies. Results : A narrow suprascapular notch has rarely been reported as a work-related factor of this entrapment neuropathy. Diagnosis of suprascapular entrapment neuropathy is based on the patients' clinical course, neurologic, radiologic, and electrophysiologic findings. One of the most helpful evaluations was anteriorposterior projection with the X-ray tube angled 15-30 degree caudally. The suprascapular entrapment neuropathy is relatively uncommon entity of shoulder discomfort(pain, weakness, and atrophy). Conclusions : If the worker who used his shoulder joint repetitiously having the shoulder pain and muscle weakness, we must rule out the suprascapular entrapment neuropathy. And it is needed to evaluate the motions which cause suprascapular entrapment neuropathy as the ergonomic factor.

황정(黃精) 추출물의 화학구조결정에 관한 연구(Ⅱ)

김흥재,조수동,권기락,안철진,주우홍,강진호,신동수 Institute of Genetic Engineering Changwon National 1998 Gene and Protein Vol.2 No.1

본 연구에서는 황정 속에 포함되어 있는 생리활성 물질을 hexane, CHCl₃과 n-butanol층에서 각각의 성분들을 추출하였고, hexane층에서 분리된 화합물 I과 Ⅱ 중에서, 화합물 I의 봐학구조를 ¹H-nmr, ??, DEPT135, COSY, HMQC, HMBC 스펙트럼 및 MS 스펙트럼 등의 분광학적인 방법에 의해 결정하였다. 화합물 I의 구조는 9,12-(9E,12E) -octadecadienoyloxy) propanoic acid 임을 확인하였다. In this Paper, biologically active compounds were extracted using organic solvents as hexane. CHC1₃, n-butanol to give each component. Chemical structure of compound I was characterized using ¹H-nmr, ??, DEPT135, COSY, HMQC, HMBC spectrum and MS-spectrum, in separated compound I and Ⅱ from hexane layer. Finally, chemical structure of compound I was determined as 9,12-(9E,12E)-octadecadienoyloxy)propanic acid.

분만 후 심한 저혈당이 동반된 림프구성 뇌하수체염 1예의 경과 관찰

손장명,고승현,안유배,주강,이정록,양성은,송기호,손호영,전정수 대한내분비학회 2003 Endocrinology and metabolism Vol.18 No.3

저자들은 출산 후 발생한 심한 저혈당을 주소로 내원한 31세 여자 환자에서 뇌 자기공명영상검사에서 뇌하수체종괴가 관찰되고 복합 뇌하수체 기능검사 결과전반적인 뇌하수체 기능저하증의 소견을 보여 림프구성 뇌하수체염을 진단하고, 호르몬 보충요법만으로 경과를 관찰하여 호전된 예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Lymphocytic hypophysitis, an inflammatory disease of the pituitary gland that is often associated with pregnancy, is caused by autoimmune destruction of the pituitary gland evidenced by diffuse inflammatory cell infiltration of the pituitary gland and some kinds of detectable autoantibodies. We report a case of lymphocytic hypophysitis in a 31-year-old woman presenting with severe hypoglycemia and hyponatremia after delivery. Hormonal study revealed panhypopituitarism and magnetic resonance imaging with enhancement showed the bulging contour of the right side pituitary gland with an ill-defined mass-like lesion and nodular thickening of the stalk The patient's symptoms and biochemical data improved greatly with replacement of L-thyroxine and glucocorticoid. Partial recovery of panhypopituitarism was also seen. The follow-up tests revealed dramatic resolution of the pituitary lesion (J Kor SOC Endocrinol 1 8 : 3 25 -33 1, 2003).

내시경을 이용한 관골궁골절 정복술

박대환,이재욱,장경수,송철홍,한동길,안기영 大韓成形外科學會 1998 Archives of Plastic Surgery Vol.25 No.1

Although the zygomatic arch can be employed as a key landmark to the accurate alignment of a displaced zygoma fracture, it has been traditionally avoided because of the need for a bicoronal incision. Exposure of the zygomatic arch by means of the conventional bicoronal incision has several possible disadvantages, including an increased risk of blood loss, alopecia, loss of sensation posterior to the incision, and traction palsy of the facial nerve. Endoscopic-assisted exposure of a zygomatic arch can largely obviate the disadvantages of a bicoronal incision and yield this site accessible to reduction and internal fixation in the routine treatment of displaced zygoma fractures. 9 cases of endoscope-assisted open reduction of zygomatic arch fracture and 3 cases of internal fixation of a moderately displaced zygoma fracture are presented. To accomplish this technique, a rigid 4 mm, 30 degree down-angled endoscope, trocar and cannula, endoscopic forehead lift instrument were used. The postoperative courses were satisfactory with few complications. The use of endoscope in the treatment of zygoma reduction provided an expanded field of vision, direct manipulation of lesions, minimal postoperative scar. In particular, exposure and fixation of the zygomatic arch were performed without the need for a bicoronal incision.

One-Chip uP에 의한 CO₂가스메탈 아크용접기의 디지털 제어기 설계에 관한 연구

최규하,채영민,송성학,우동학,한광수,안기은 건국대학교 1997 學術誌 Vol.41 No.2

With the development of semiconductor devices, adaptation of microcontroller prevails in industrial area. But in arc welding industry, there has not been much progress in adoption microcontroller technology. Therefore, this paper shows the application of digital control technology to welding machine. This paper presents the design of microcontroller that is appropriate for three phase CO2 gas metal arc welding machine. By using microcontroller in CO2 gas metal arc welding machine, the overact cost can be reduced compared to analog type one. Also TMS370C850 microprocessor is used as overall microcontroller for the arc welding machine.

Improvement of survival rate of 1st larva for mass rearing of Luciola lateralis

Ki-Su Ahn,Sun Kook Kim,Hyun-Ju Kim,Ji-Su Lee,Young-Il Kim,Gil-Hah Kim 한국응용곤충학회 2020 한국응용곤충학회 학술대회논문집 Vol.2020 No.10