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조팝나무 揷木時期 및 揷床土의 種類가 發根에 미치는 影響
趙鎭泰,尹汰,金泰重,洪承敏,白基燁 한국화훼연구회 1995 화훼연구 Vol.4 No.1
Cutting experiment was conducted to develop a mass propagation method for Spiraea prunifolia var. simpliciflora Nakai. The optimum season for hardwood cutting was between December and early April, but cutting could be done year-round by using rhizome. NAA treatment (100 ppm) was the most effective as rooting promoter. IBA and IAA were also found to be effective. The effect of sand, red clay, loam, silty loam and vermiculite had little differences in rooting especially when cuttings were done earlier than April 5.
서기석,이진우,김상태 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.1
Verrucous mycosis fungoides is very rare variant of cutaneous T cell lymphoma that manifests verrucous crusted lesion and may be clinically misdiagnosed as a wart, deep fungal infection or atypical mycobacterial infection. If it is located acrally, it might then be better classified as mycosis fungoides palmaris et plantaris or pagetoid reticulosis. We report a case of solitary verrucous mycosis fungoides on the left knee in 25-year-old woman successfully treated ultraviolet A-1 phototherapy.
기저세포암, 피부전이암과 유사한 조직소견을 보인 안검 외 피지선암 1예
김상태,노효진,서기석 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.1
Backgroud : Extraocular sebaceous carcinoma is a malignant tumor derived from the adnexal epithelium of sebaceous glands. A poorly differentiated sebaceous carcinoma shows variable histopathologic findings and mimics other primary tumor and cutaneous metastases mostly composed of clear cells. Case : Our patient consultation was requested for a 53 year?old female with solitary mild painful tumor on the scalp. The first histopathlogic impression of this case was basal cell carcinoma on the other hospital. After reevaluation, our diagnosis is not basal cell carcinoma but extraocular sebaceous carcinoma. Conclusion : A thorough exact recognition of characteristic histopathologic features of extraocular sebaceous carcinoma is necessary for making diagnosis, treatment plan and determining the prognosis.
제주도 연안해역의 해황 및 기상이 어획생산량의 변동에 미치는 영향
손태준,박원배,노홍길,양성기 제주대학교 1992 논문집 Vol.34 No.-
. Long-term time series data of water of water temperature and surface meteorological elements are used to investigate effects on the fishery production in the neghboring seas of Cheju island. Long-term(more then 12 months) and the seasonal variations between the sea surface temperature and the air temperature are highly correlated excepting the phase difference by the unusual cold period. Also the ocean conditions in the shallow water of Cheju island are easily affected by meteorological conditions and have a large variation in comparison with the often ocean. The sea conditions in the near seas of Cheju island are related to the fishery productions are increased. The fishery productions by the set-net are shown the maximum value in the Fall, radiating from the ocean to the air, and it was shown that the optimum temperature was 19℃, salinity 32.0-32.6 and density 22.6-23.2. The maximum catches of fish were appeared to be related to the times before and after the passing of typhoon or of a cyclone, the sea surface temperature decreased, turbidity was increased and fishery procuction was significantly increased.
김태환,이재기,김영철,박남국,신재순 전남대학교 촉매연구소 2001 觸媒硏究 論文集 Vol.22 No.-
Converting of wasted plastics into oil can be used as a new energy source. It has advantages of reducing the environmental problems and produces additional economic values. In this study, polyethylene and polypropylene were catalytically degraded by JSA-1(Si/Al=6.7), JSA-2 (Si/Al=2.57), HZSM-5 (Si/Al=30.2) and MCM-48(Si/Al=100/0) catalysts to investigate the optimum degradation conditions. The order in liquid product yield was JSA-2 > JSA-1 > HZSM-5. Liquid product yield was increased with the catalyst loading, but the carbon number distribution of the liquid product was widely spreaded. When the HZSM-5 was phosphated to regulate the acidity, the liquid product yield was in the order of P (2 wt %) HZSM-5 > P (1 wt %) HZSM-5 > HZSM-5 > P (3 wt %) HZSM-5. The optimum acidic amount and strength of the phosphated HZSM-5 was achieved when 2 wt % P was loaded. It was confirmed by the ammonia TPD. HMCM-48 with acid sites was not blocked by carbon deposition because of the large pore size. So, it seems to promote the catalytic activity of the plastic degradation.
전기적 노이즈에 의한 누전차단기의 오동작에 관한 실험적 연구
김태만,권용준,기도형 한국산업안전학회 2002 한국안전학회지 Vol.17 No.1
The purpose of this study was to investigate effect of electrical noise on malfunction of the earth leakage circuit breaker. A three-way experiment for studying its malfunction was conducted, in which electrical products such as radio, alternating current arc welder and cellular phone, distance from the earth leakage breaker to electrical products, and whether or not the earth leakage breaker is contained in the steel box were employed as experimental variables. Eleven earth leakage breakers frequently used in real situations were tested in each experimental treatment. The electrical products were used for generating electrical noise that is known to be able to cause malfunction of the earth leakage breaker. The results showed that except a case for one of the 11 earth leakage breakers when the radio made by M company was located 30 cm ahead of the breaker, malfunction did not occur in any other experimental treatment. Consequently, it is suggested that the breaker should be normally used for preventing electricity-related accidents without fear of its malfunction in industrial sites.
TFE-EtOH와 TFE-H₂O 混合溶媒속에서 2-염화테노일의 親核性 置換反應
尹庠基,嚴泰燮,成大東 東亞大學校 大學院 1981 大學院論文集 Vol.5 No.-
For solvolysis of 2-thenoyl chloride we discussed the solvent effects on rates in TFEEtOH, THE-H₂O solvent mixtures. We have used the More O' Ferrall plots show that transition state variation caused by solvent, changes is consistent with an associative Sn2 mechanism for THE-EtOH binary solvent mixtures and an Sn2 mechanism for THE-H₂O in the solvolysis of 2-thenoyl chloride.
김태환,홍원기,이용두 대구대학교 정보통신연구소 2004 情報通信硏究 Vol.3 No.2
RFID는 태그와 리더간 전자기 유도를 통해 객체를 식별하는 무선 통신 기술이다. 이는 객체를 식별하기 위한 인식 거리나 위치 등에 있어서 바코드에 비해 매우 자유로우며 동시에 여러 객체를 인식 할 수 있기 때문에 향후 물류, 유통 산업에서 높은 기술적 가치를 갖는다. 일반적으로, 리더기를 통해 식별된 객체에 대한 상세한 정보를 얻어내기 위해 PML 서버로부터 해당하는 정보를 검색, 추출하기 위한 과정이 요구된다. 그러나 이것은 많은 연산과 서버와의 통신을 요구하기 때문에 자원 제한적인 리더기에는 상당한 부담이 될 수 있다. 본 논문에서는 제한적인 하드웨어 자원을 가진 리더기에서 PML 문서 검색, 추출을 위한 부하를 줄이기 위한 시스템을 제안한다. RFID (Radio Frequency IDdentification) is a wireless communication technology that identifies an object containing a tag through electromagnetic induction. Because it is not restricted in its position or the read range as much as the bar code technology which requires a line-of-sight to identify an object but also able to read several tags at the same time, it is considered to be one of the promising technologies used in the distribution industry in the future. Generally, a process of retrieving and acquiring a corresponding data should be needed to get a detail information about an object identified by a RFID reader. However, it gives a heavy burden on the resource-restricted reader because it requires significant computation and communication tasks. This paper proposes a 글로벌 RFID system that efficiently decreases the computation load to retrieve an acquire a PML document for the resource-restricted reader.