온수배관을 이용한 온실의 난방성능

윤용철(Yong Cheol Yoon),신익수(Yik Soo Shin),김현태(Hyeon Tae Kim),배승범(Seoung Beom Bae),최진식(Jin Sik Choi),서원명(Won Myung Suh) (사)한국생물환경조절학회 2012 생물환경조절학회지 Vol.21 No.2

본 연구는 온실의 난방 에너지 절감을 목적으로 온실 내부에 알루미늄 온수배관을 설치하여 난방효과에 대한 기초자료를 구축하고자 수행되었다. 그 연구결과를 요약하면 다음과 같다. 전체 실험을 포함하여 온실내의 높이별 온도편차는 4.0~7.0℃ 정도의 범위로서 그 차이가 크게 나타났다. 팬코일유니트(FCU)를 작동시킨 경우가 작동시키지 않은 경우에 비해 유출입수의 온도차가 3.3℃ 정도 크고, 소비전력량은 36.2~40.1% 정도 증가하였으며, 시간당 방열량은 44.6~52.0% 정도 증가하는 것으로 나타났다. 실험기간동안 순환유량은 0.48~0.49L · s<SUP>?1</SUP> 정도의 범위에 있었고, 평균유속은 1.53~1.56m · s<SUP>?1</SUP> 정도였다. 유출입수의 평균 온도차는 6.24~11.50℃이었다. 최저 외기온 ?14.0~?0.6℃ 범위에서 설정온도별 방열량은 135,930~307,150㎉ 정도의 범위로서 시간당 9,610~19,630㎉ · h<SUP>?1</SUP> 정도의 범위에 있었다. 이것은 최대난방부하의 약 23~53% 정도의 난방에너지를 공급할 수 있을 것으로 나타났다. 전체 방열량과 소비전력량은 각각 2,548,306㎉ 및 3,075.7㎾h이다. 화석연료인 경유로 난방할 경우, 소요되는 경유의 총 소비량은 281.6L 정도이고 비용은 321,000won인 것으로 나타났다. 농가용 전력요금을 적용하면 전력사용에 대한 총비용은 110,730won 정도로서 경유 소비 비용의 33.5% 정도로 나타났다. 실험구의 온도가 대조구보다 약 8.3~14.6℃ 정도 높게 나타났다. This research was conducted to obtain basic data with regard to the heating performance that would be produced by installing an aluminum hot water pipe inside the greenhouse with the goal of reducing the heating energy in greenhouse. The research results are summarized as follows. The degree of difference in relation to the temperature by height within the greenhouse during the entire experiment was significant - within the range of 4.0~7.0℃. The temperature difference between incoming and outgoing water was about 3.3℃ greater when FCU was activated compared to when it was not activated. Meanwhile, the amount of energy consumed increased about 36.2~40.1%. The amount of pyrexia per hour also increased by 44.6~52.0%. During the experiment period, circulated flux was within the range of 0.48~0.49 L · s<SUP>?1</SUP> while average fluid speed was 1.53~1.56 m · s<SUP>?1</SUP>. The average temperature difference between incoming and outgoing water was 6.24~11.50℃. The amount of heating value by each set temperature within the minimum outdoor temperature range of ?14.0~?0.6℃ was 135,930~307,150 ㎉, and the range was within the 9,610~19,630 ㎉ · h<SUP>?1</SUP> per hour. This demonstrated that about 23~53% heating energy of the maximum heating load could be supplied. Total radiating value and amount of energy consumed were 2,548,306 ㎉ and 3,075.7 ㎾h, respectively. When heating takes place using oil, which is a fossil fuel, the total amount of light oil consumed was 281.6 L while the cost was 321,000 won. When the electricity cost for farms is applied, the total cost was about 110,730 won, which is about 33.5% of the cost required compared to oil consumption. The temperature at in the experiment area was about 8.3~14.6℃ higher compared to that of the control area.

현훈 환자 Neuron Specific Enolase의 임상적 의의

김원주,김선곤,유철형,김원찬,김용덕,최영철,이명식 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

Modified Free Wrap-around flap을 이용한 수무지 재건술

최영화,황치원,정병훈,한명호 대한성형외과학회 1992 Archives of Plastic Surgery Vol.19 No.3

The thumb is the most important part in the hand and its loss results in severely diminished function of the hand for pinch and grasp. There are several microsurgical and other methods to reconstruct and amputated or lost thumb such as toe-to-thumb transfer1)2)9) as well as several varieties of flaps. Among them, a free wrap around flap taken from the big toe, including the nail and an iliac bone graft as the cone of the reconstruction was a quite satisfactory procedure, but there were some problems. We performed a free wrap around flap on traumatically missing thumb with modification to include all part of the distal phalanx without iliac bone graft. The resorption and atrophy of a grafted iliac bone, a constant problem with Morrison's original procedure8), could be prevented by the modified method. The donor site defects were covered by remained medial flap for weight bearing area first, and full thickness skin graft for remained defected area. The results were good cosmetically and functionally without significant problems.

고관절 외전근의 원심성 운동이 보행시 균형에 미치는 효과

최원호,김명종 대한정형물리치료학회 2003 대한정형도수물리치료학회지 Vol.9 No.2

The purpose of this study was to identify the effects of eccentric exercise of affected help abductor muscles on Gait balance in patient with hemiplegia. 30 patients with hemiplegia were recruited among in and out patients of Gil Hospital(age x=50.5, SD=10.1, range 37-80. post stroke days x=383.2, SD=309.3, range 57-1165). These patients were divided into eccentric and control groups by random sampling. TUG were used for this study. Paired t- test was used to identify the effects of eccentric exercise of hip. The results were stastically significantly differences in the effect of exercise between experimental and control groups by TUG(p<0.05). The results indicate that the eccentric exercise of affected hip abductor muscles is effects on gait balance in patient with hemiplegia.

언어와 언어사용에 있어서 맥락의 의미

최명원 독일어문학회 2002 독일어문학 Vol.19 No.-

유방암의 뇌하수체 전이에 의한 양안 시력소실 1 예

최낙원,안명주,김재민,박동우,박용욱 한양대학교 의과대학 2000 한양의대 학술지 Vol.20 No.1

Pituitary gland metastasis is a rare clinical diagnosis, usually made in the setting of known primary systemic cancer with widespread metastasis to other organs. But visual loss as a presenting symptom of metastasis to the pituitary gland is unusal. We report here a case of 45-year-old woman who had been diagnosed as having metastatic breast cancer involving bone and liver 2 years ago, and received high dose chemotherapy with peripheral blood stem cell transplantation, developed sudden bilateral complete visual loss. At initial presentation, the patient had no light perception and no pupillary response to light in both eyes, but without evidence of panhypopituitarism, or diabetes insipidus. Brain MRI showed a large enhanced mass invasion to the cavernous sinus and extension to the suprasella portion without dura or base-of-skull metastasis. Pathologic examination showed metastatic breast cancer. Despite the transsphenoidal decompression surgery of metastatic tumor, the visual loss was not improved.

구조최적화를 위한 국소 탐색 기능 강화 유전 알고리즘의 개발에 관한 연구

최낙기,서명원,조기용 기계기술연구소 2000 성균관대학교 논문집 기계기술편 Vol.2 No.1

It is known that genetic algorithm searches the global optimum of structural problems which mostly have many local minimums. In spite of the advantage of the global search which genetic algorithm has the application to structural problems has been limited, for its slow convergence especially near the optimum point. For the genetic algorithm to be applied to structural problems enhanced local search method for genetic algorithm(ELGA) is devised in this study by adopting mathematical programming technique. During the conventional genetic procedure a feasible and usable direction at the best point is found and searching minimum along the direction is performed to enhance the local search. To verify ELGA two mathematical problems which have many local minimums and two structure problems which are 10 and 25 bar truss problem are applied and its accuracy and fast convergency have confirmed

개에서 발생한 만성 단독 비장 염전의 진단 및 치료 1례

이혜원,최호정,김명철,정성목 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2009 動物醫科學硏究誌 Vol.16 No.1

A 5-year-old German Shepherd dog(intact male, 27kg) was admitted to the Veterinary Medical Teaching Hospital of Chungnam National University with the history of anorexia and vomiting. On physical examination, he was depressed and had abdominal distention. A complete blood count indicated leukocytosis and anemia. Radiographic findings included a large soft tissue mass in the middle to caudal abdomen and loss of serosal detail. Ultrasonographs showed splenomegaly with mixed ethoic parenchyma, hyperechoic area around the splenic hilus, and loss of venous flow. Computed tomography revealed enlarged spleen with partially enhanced parenchyma. Chronic isolated splenic torsion was diagnosed and splenectomy was performed. Histopathologic examination revealed chronic passive congestion of the spleen. He was recovered normally after surgery without any complications.

생쥐에서 치주조직 형성 과정에 따른 치주인대 세포-특이 PDLs17 단백질 발현 변화

최치원,김은미,이명화,김흥중,박주철 조선대학교 구강생물학연구소 2002 Oral Biology Research (Oral Biol Res) Vol.26 No.2

PDLs17, PDL-specific gone, had previously identified the cDNA for a novel protein from cultured PDL fibroblasts using subtraction hybridization between gingival fibroblasts and PDL fibroblasts. The purpose of this study was to observe the immunohistochemical localization of PDLs17 on the developing periodontium of mice. Developing mice (post-natal mice; P4, P10, P15) were recovered and decapitated, and the heads were fixed overnight at in a freshly prepared solution of 4% paraformaldehyde. Some specimens were decalcified for 2-4 weeks in a solution containing 10% of the disodium salt of ethylenediamine-tetraacetic acid (EDTA). Next, tissues were dehydrated, embedded in paraffin and sectioned serially at 6㎛ in thickness. Polyclonal antiserum raised against PDLs17 peptides. SEAVHETDLHDGC, were made, and immunostained the tooth, periodontium, developing bone and bone marrow of developing mice. The results were as follows. 1. Immunohistochemical analysis showed that PDLs17 is Preferentially expressed in the developing tooth follicle, but not in tooth pulp and overlying gingival mucosa of 4-day-old developing mouse. PDLs17 also expressed in preosteoblast-likec ells in the developing alveolar bone of 4-day-old mouse. 2. PDLs17 expressions were observed in developing tooth follicle, tooth pulp and alvolar bone of 10-day-old developing mouse. 3. PDLs17 protein were observed in PDL cells, tooth pulp and surrounding alveolar bone of 15-day-old tooth-eloping mouse. However, there were no PDLs17 expression in ameloblasts and odontoblasts. These results suggested that PDLs17 might expressed at the initial stage of differentiation when the undifferentiated mesenchymal cells in the bone marrow and PDL, differentiatiation from tooth follicle. However, more research needs to be performed to gain a better understanding of the exact function of PDLs17 during the differentiation of tooth pulp cells and PDL cells.

노인의 영적 간호요구

최미혜,김경희,김귀옥,김기숙,김수강,김정신,김춘숙,노흥진,박지연,성혜연,오명선,이선희,이원옥,이윤영,이현수,장명재,차혜경,채정선,홍상희 중앙대학교 의과대학 간호학과 간호과학연구소 2001 중앙간호논문집 Vol.5 No.1

This study was designed to exam the aged's needs for spiritual nursing care. The purpose was to serve as a basis for the development of spiritual nursing practice. The major findings are as follows : 1. The degree of needs for spiritual nursing care as area was that needs of love and relationship mean 22.0, needs of meaning and object mean 28.2, needs of forgiving mean 13.5. Total needs for spiritual nursing care mean 63.7, which was on the upper middle level. The needs of meaning and object was rated highest. 2. Among the general characteristics of the subjects, needs of love and relatiohship wasn't significanlty different. 3. Among the general characteristics of the subjects, needs of meaning and object was significantly different according to two factors : age(F=7.260, p=0.001), religion(F=5.275, p=0.001). Higher needs of meaning and object was possessed by the older than the younger, by the one who have religion than the other. 4. Among the general characteristics of the subjects, four factors made a significantly difference to needs of forgiving : sex(t=-2.851, p=0.006), age(F=8.201, p=0.001), religion(F=6.928, p=0.000), disease(t=2.327, p=0.024). Higher needs of forgiving was possessed by man than woman, by the older than the younger, by the one who have religion than the other, by the one who have disease than the other.