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스트레인 게이지를 利用한 土壤硬度計의 開發 : Ⅱ. 實用化試驗 Ⅱ. Application Experiment
章益柱,李基明,金泰漢 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1984 慶北大農學誌 Vol.2 No.-
The soil hardness tester was developed in order to increase the accuracy of measurement and easiness of handling and make it possible to read the data continuously which might be impossible with conventional soil-hardness tester. A strain gauge and a potentiometer were mounted at cone penetrometer in this soil hardness tester. A series of soil hardness tests were conducted at the laboratory using this measuring system. And the results were compared with those obtained from cone penetrometer which was widly used for this purpose. Also, the soil resistance characteristics were investigated when cone, plate and cone-plate were tested, respectively. The following conclusions were drawn from the results: 1. The soil hardness tester developed in this experiment read data more accurately than cone penetrometer did, which was designed to read with dial gauge. Also, it made possible to read the data continuously as it penetrated from the surface to subsoil. 2. When cone, plate and cone-plate were penetrated into the test soil, soil hardness increased as depth increased gradually. Approximately at a 15㎝ of soil depth, the increase of soil hardness stopped and increased again as it penetrated deeply. This phenomenon seemed to be caused from soil resistance characteristic to penetration. 3. The desirable diameter of the plate seemed to be 50㎜ or more for measuring the surface hardness of the soil sample used in this experiment.
박성태,장익주,정창화,김상열,김재현,문헌팔,양세준,김순철 한국국제농업개발학회 2002 韓國國際農業開發學會誌 Vol.14 No.3
쌀 생산비를 줄이고 대경지 규모화 영농에 적응할 수 있는 농기계 개발을 목적으로 연구개발한 대규모 경지적응 트랙터 부착 대형벼이앙기의 구성과 특징 및 개발시작기의 재배적 실용성 평가결과를 요약정리하면 다음과 같다. 1. 트랙터 부착 12조 대형벼이앙기는 크게 바퀴자국 제거로타리, 문짝형 정지판, 이앙장치부 등으로 구성되어 있다. 2. 트랙터 부착 12조 이앙기는 트랙터 동력을 이용하여 로타리, 정지 및 이앙작업이 동시에 이루어 질 수 있도록 개발하였다. 3. 바퀴자국을 없애는 날은 기존의 로타리 날을 교체하면 되도록 반달형 날로 제작하였다. 4. 이앙기는 이동시는 접을 수 있도록 설계 제작되어 대형화가 가능하므로 기존 6조 승용이앙기에 비하여 이앙작업 능력이 1.5배 이상이었다. 5. 트랙터 부착 대형벼이앙기는 트랙터와 같은 큰 동력원을 이용할 수 있으므로 측조시비기, 긴매트모 탑재 등 다양한 작업기 및 기능을 추가로 부착 가능하도록 설계되었다. 6. 트랙터 부착 대형벼이앙기는 어린모 및 중묘이앙시 결주율은 3.0∼4.3%로 기계이앙기 결주 허용범위 5% 미만이었다. 하지만 무경운 논에서는 이앙작업은 가능하나 부묘율이 다소 높은 점은 보완이 필요하다. To develop a labor saving rice cultivation technology, a new tractor attached rice transplanter has been developed for large scale farming and its field performance was evaluated. The rice transplanter consists of three major parts such as rotary for removing tractor tire furrow, door-shaped soil leveling plate and transplanting equipment. The rice transplanter is operated using the power of the tractor and performs rotary, harrow and seedling transplanting simultaneously. A half moon shaped rotary blade was found to be very efficient to remove tire furrow developed during seedling transplanting and the original rotary blade can be replaced easily with existed rotary blade. The seedling transplanting part of the transplanter was designed to fold into small size and the transplanting efficiency of the transplanter was found to be 1.5 times higher than that of the conventional riding type six row transplanter. Since the transplanter is operated through a strong power of the tractor, the additional attachment such as fertilizer application apparatus and long mat rice seedling carrier is possible. Based on the field performance of the transplanter, although the missing hill percentage showed roughly with 3.0∼4.3% for 10-day and 30-day old seedlings but the percentage is less than 5% which is maximum missing hill permit in the transplanting rice. Seedling transplanting in no-tillage field condition is acceptable but floating seedling percentage is still high and thus further technology improvement for minimizing floating seedling percontage is needed.
문희정,장병익,김승범,이호찬,박재현,은종렬,김태년 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.2
Ulcerative colitis (UC) is a chronic inflammatory disorder of the gastrointestinal tract that affects the large bowel, Its etiology remains controversial. However, an infectious or immunologic origin is considered the primary cause. The onset of UC is typically slow and insidious, but some patients may present acutely with symptoms mimicking infectious colitis. We report a case of ulcerative colitis mimicking acute hemorrhagic colitis at initial presentation. A 60-year-old man was referred to Yeungnam University Hospital for bloody diarrhea and abdominal pain. Sigmoidoscopy revealed mildly edematous mucosa in the rectum and hyperemic mucosa with petechiae in the sigmoid colon. The patient was treated with antibiotics for several days, and his symptoms improved. However, after one month, his bloody diarrhea relapsed. Follow-up sigmoidoscopy revealed mucosal friability in the rectum and sigmoid colon. He was diagnosed with ulcerative colitis, and his symptoms were improved with mesalazine and a steroid enema.
오승희,하태익,장명호 한국식품영양학회 1996 韓國食品營養學會誌 Vol.9 No.3
꽁치 가공식품 개발 가능성을 타진하기 위해 경북 동해안 일대의 전통·향토식품인 과메기를 자연건조와 인공건조로 각각 15일 건조하여 콜레스테롤 함량변화에 따른 과메기의 품질변화 건조효과를 조사하였다. 그 결과, 생체 꽁치의 콜레스테롤 함량은 건물 시료당 56.0mg%이었으며, 자연건조 3일째에 급격히 감소(생체 대비 10%)하였고, 그 후 큰 변화가 거의 없었다. 인공건조는 서서히 감소(3.0%→6.6%)하였다. New drying method was tested for the quality control for Kwamegi, dry Pacific saury(Cololahis saira) in east coast, area of Kyungbuk province, Korea, Cholesterol content of raw fish was 56 mg% on dry basis, and decreased to 50.82 mg% rapidly the first 3 day and then, it was almost unchanged. However, the cholesterol content decreased slowly to 52.3 mg% during 15 days in new artificial drying.
폐쇄성 황달로 내원한 담관내 증식을 동반한 간세포암 1예
김승범,김태년,이호찬,박재현,은종렬,장병익,이헌주,윤성수,배영경 영남대학교 의과대학 2008 Yeungnam University Journal of Medicine Vol.25 No.2
The incidence of hepatocellular carcinoma presenting as obstructive jaundice is 0.7 -9% The mechanisms of obstructive jaundice include bile duct invasion by tumor, tumor thrombi, blood clots, direct bile duct compression by tumor, and intraductal tumor growth. We report a rare case of hepatocellular carcinoma with intraductal growth A 46-year-o1d woman was admitted due to colicky right upper abdominal pain and jaundice for 4 days Computed tomography showed dilatation of the left intrahepatic duct, and endoscopic retrograde cholangiography showed a filhng defect in the left main intrahepatic duct. We performed a left lobectomy with a Roux-en-Y hepaticojejunostomy. The tumor was diagnosed as a hepatocellular carcinoma with intraductal growth.
간문부 담관암 환자에서 경피경관 양측성 금속 배액관의 효과
김금래,김주형,박원규,장재천,조재호,김태년,김준화,장병익 영남대학교 의과대학 2005 Yeungnam University Journal of Medicine Vol.22 No.2
Background: The purpose of this study was to determine the effectiveness of percutaneously place self-expanding metallic stent for the relief of biliary obstruction in patients with hilar cholangiocarcinoma. Materials and Methods: From November 2001 to December 2004, 48 patients with hilar cholangiocarcinoma were prospectively studied. After percutaneous placement of bilateral self-expanding, uncovered metallic stents, follow-up evaluation was carried out until July 2005. Results: There were 4 cased of Bismuth type Ⅱ,21 cases of Bismuth typeⅢa 8 cases of Bismuth type Ⅲb and 15 cases of Bismuth type Ⅳ. Stent placement was technically successful in all patients All patients had satisfactory biliary drainage, resulting in one week drainage rate of 72.8% and final drainage of 91.9% There were 12 cases (21.3%) of abdominal pain requiring analgesics and 1 case (7.1%) of cholangitis; both were successfully managed with conservative treatments. Late complications occurred in four patient (8.3%), including two patients with cholangitis, one patient with liver abscess, and one patient with biloma; all were appropriately managed by percutaneous drainage. The average length and median durations of stent patency and median survival time were 303 days (range, 60~815) and 338 days (range, 60 ~1175), respectively. Conclusion: Placement of a percutaneous metallic stent is an effective and safe method of palliation of patients with hilar cholangiocarcinoma.