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趙將鎬,文在裕 한국잠사학회 1987 한국잠사곤충학회지 Vol.29 No.1
This study was carried out to investigate the effects of climatic conditions on the budding of buds and the growth of shoots of mulberry (Morus alba L.) at Suwon for the period of six years from 1978 to 1983. The results are summarized as follows. 1. The period that influenced most greatly on mulberry budding and foliating of it's buds was from late part of March to middle part of April in the district of Suwon, Korea. 2. Temperatures in soil 20cm deep during the period from late part of March to middle part of April had high correlations with budding dates. 3. It was disclosed that the budding date had high correlations with the date of bud shaped swallow-bill (r=0.9861**), date of the first leaf (r=0.9861**), date of the third leaf (r=0.97**) , and date of the fifth leaf (r=0.96**), respectively. 4. The higher the average temperature of April became, the longer the length of shoots became. 5. The earlier the budding date and foliating date came, the larger the leaf yield became. However, with excessive amount of precipitation after early budding and foliating, the leaf yield was not increased in proportional. 6. The longer the growing period of the shoots became, the larger the leaf yield became.
조장호,임재윤,최아란,최성민,김종원,최승호,조재용 대한암학회 2015 Cancer Research and Treatment Vol.47 No.4
Purpose This study was conducted to validate the survival benefit of metastasectomy pluschemotherapy over chemotherapy alone for treatment of Krukenberg tumors from gastriccancer and to identify prognostic factors for survival. Materials and MethodsClinical data from 216 patients with Krukenberg tumors from gastric cancer were collected. Patients were divided into two arms according to treatment modality: arm A, metastasectomyplus chemotherapy and arm B, chemotherapy alone. ResultsOverall survival (OS) was significantly increased in arm A relative to arm B for patients initiallydiagnosed with stage IV gastric cancer (18.0 months vs. 8.0 months; p < 0.001) and thosewith recurrent Krukenberg tumors (19.0 months vs. 9.0 months; p=0.002), respectively. Metastasectomy (hazard ratio [HR], 0.458; 95% confidence interval [CI], 0.287 to 0.732;p=0.001), signet-ring cell pathology (HR, 1.583; 95% CI, 1.057 to 2.371; p=0.026), andperitoneal carcinomatosis (HR, 3.081; 95% CI, 1.610 to 5.895; p=0.001) were significantprognostic factors for survival. ConclusionMetastasectomy plus chemotherapy offers superior OS when compared to palliativechemotherapy alone in gastric cancer with Krukenberg tumor. Prolonged survival appliesto all patients, regardless of gastric cancer stage. Metastasectomy, signet-ring cell pathology,and peritoneal carcinomatosis were prognostic factors for survival. Future prospectiverandomized trials are needed to confirm the optimal treatment strategy for Krukenbergtumors from gastric cancer.
Dimethyl methylphosphonate(DMMP) 흡착용 첨착활성탄 제조 및 흡착성능
조장호,안호근,윤현준,이경민,김수빈,이명석,진용옥 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0
화생방 대피시설의 공기정화에 사용하는 입자가스 여과기는 화생방 가스로부터 대피시설 내의 인원 피해가 최소화되도록 일정 기준 이상의 성능을 가진 제품을 사용해야 하나, 국내에서 사용하는 대피시설용 여과기는 모든 조건을 만족하지 못하는 것으로 나타났다. 이에 따라 미 국방규격에서 제시된 활성탄 수명 시험 조건에 충족할 수 있는 첨착활성탄의 개발이 필요하다. 본 연구에서 사용한 활성탄은 야자계 활성탄(8×30mesh)이었고, 함침법으로 필요한 금속성분을 첨착하였다. 활성탄 정제, 함침용액 제조방법, 함침방법, 건조방법 및 소성방법 등의 조건을 변경하여 제조하였다. 이렇게 제조한 첨착활성탄의 DMMP 흡착성능은 GC가 장착된 기상흐름 흡착장치를 사용하여 평가하였으며, 산출된 데이터 값을 파과곡선으로 나타내었다. 활성탄을 증류수로 정제한 것보다 질산으로 정제하여 첨착활성탄을 제조할 경우와 제조된 첨착활성탄을 250℃로 소성한 첨착활성탄이 높은 DMMP 흡착성능을 나타냈다. 자세한 첨착활성탄 제조방법 및 소성에 따른 상용제품과 비교한 파과곡선 등은 포스터를 통해 제시하고자 한다.
포크너-스캔 경계층유동에서의 다분산 입자부착에 대한 연구
조장호,황정호,최만수 대한기계학회 1995 대한기계학회논문집 Vol.19 No.9
Deposition of flame-synthesized silica particles onto a target is utilized in optical fiber preform fabrication processes. The particles are convected and deposited onto the target. Falkner-Skan wedge flow was chosen as the particle laden flow. Typically the particles are polydisperse in size and follow a lognormal size distribution. Brownian diffusion, thermophoresis, and coagulation of the particles were considered and effects of these phenomena on particle deposition were studied. A moment model was developed in order to predict the particle number density and the particle size distribution simultaneously. Particle deposition with various wedge configurations was examined for conditions selected for a typical VAD process. When coagulation was considered, mean particle size and its standard deviation increased and particle number density decreased, compared to the case without coagulation. These results proved the fact that coagulation effect expands particle size distribution. The results were discussed with characteristics of thermal and diffusion boundary layers. As the boundary layers grow in thickness, overall temperature and concentration gradients decrease, resulting in decrease of deposition rate and increase of particle residence time in the flow and thus coagulation effect.