월악산 잣나무 및 화백나무 형성층의 계절적 활동과 적산온도와의 관계

박준희, 강현정, 이해진, 서정욱 충북대학교 농업과학기술연구소 2022 農業科學硏究 Vol.38 No.2

The current study was conducted to investigate (1) the duration of cambial activity and (2) the effect of degree days on the initiation of cambial activity of the Pinus koraiensis (PK) and Chamaecy- paris picifera (CP) planted in Mt. Worak. In addition, the differences of the seasonal cambial activities according to the diameter were also investigated using C. picifera with a diameter of 30 cm (CPL) and 15 cm (CPS), which were planted in the same year. The cambium samples were weekly collected using a mini-borer (Ø 2 mm), so called Traphor, between April and October in 2017. The results obtained are as follow. The initiation of the cambial activity of CP (April 21-28) were slightly earlier than PK (April 21). The species with the longest cambial activity was CPS (147.2±12.1 days), followed by PK (141.6±9.8 days) and CPL (139±12.1 days). The degree days inducing the initiation of the cambial activ- ity for PK and CP were 180.5 and 180.5-242.8, respectively.

자동차용 실리콘 가속도센서의 개발(Ⅱ)

이종현,신장규,이상룡,천희곤,조찬섭,심준환,류인식,박석홍,허정준,박기열 경북대학교 센서기술연구소 1994 연차보고서 Vol.1994 No.-

자동차의 air-bag 장치에 실용될 수 있는 압저항형 단결정 실리콘 가속도센서 칩을 개발하기 위하여 결정 실리콘 미세구조의 제조방법을 확립하고, 단위공정의 검증을 통하여 일괄공정에 의한 PROTO-TYPE 칩을 만드는 기술을 연구하였다. 단결정 실리콘 미세구조는 선택확산법을 이용하여 정확히 선택된 영역에만 air-gap을 형성하여 미세구조의 측면식각을 방지하는 선택확산법에 의한 실리콘 마이크로머시닝 기술로 제조하였다. 일괄공정을 위한 단위공정확립을 위하여 PROTY-TYPE 8빔 브릿지형 가속도 센서를 제조하였다. 제조된 칩의 가속도에 따른 출력전압은 선형성을 나타내고 있으며, 감도는 약 50 ㎶/V·g로 나타났다. 이 감도는 50G용 가속도센서의 사양을 만족하지 못했다. 이는 공정에 의한 문제라기 보다는 가속도센서의 시뮬레이션에 의해 설계한 구조가 이미 원하는 감도에 못 미친다는 것으로 생각된다. 따라서 2차 공정으로 제조될 가속도센서의 파라미터를 SuperSAP 유한요소 패키지를 이용하여 실리콘 미세구조부의 파라미터에 따른 특성을 시뮬레이션하였다. 설계된 50G용 가속도센서의 mass Pad의 반경 및 빔 길이, 빔 폭, 빔 두께, 그리고 mass의 각 파라미터 값은 700 ㎛, 120 ㎛, 5 ㎛, 1.0 ㎎ 이었다. 반도체 공정기술, 관성질량 제조법 및 선택확산을 이용한 마이크로머시닝을 사용하여 일괄공정으로 8빔 브린지형 가속도센서를 제조하였다. We researched the establishment of the silicon microstructure fabrication technique to develop a piezoresistive type silicon acceleration sensor chip and the technique to make a proto-type chip by the verification of the unit-process. Silicon microstructure is fabricated silicon micro-machining by selective diffusion method. This method prevent a side-etching of microstructure because selective diffused region is only formed an air-gap. We fabricated a proto-type 8-beam bridge-type acceleration sensor to establish the unit-process for the batch-process. The output voltage of the chip represented linearity with acceleration, and the sensitivity was about 50 ㎶/V·g. But this sensitivity dosen't satisfy the requirements of a practical acceleration sensor. The cause of this result is assumed not process problem, but the structure designed by simulation isn't suitable already. Threfore, the characteristics of parameters of the acceleration sensor that will be fabricated by 2nd-process is simulated by SuperSAP finite-element package. The determined parameter values of beam length, beam width, beam thickness, mass, and mass radius are 120 ㎛, 5 ㎛, 1.0 ㎎, and 700 ㎛, respectively. We fabricated 8-beam bridge-type acceleration sensor by batch-process using a semiconductor process technique, proof-mass fabrication method, and micromachinig using selective diffusion.

초음파 센서를 활용한 이륜차 사각지대경보시스템 연구

심정현,정희철,이상혁,김우진,이상욱 순천향대학교 산업기술연구소 2022 순천향 산업기술연구소논문집 Vol.28 No.2

The purpose of this paper is to prevent driver from accidents by effectively notifying the driver blind spot warning in a short distance such as a narrow alley when using a two-wheeled vehicle. It is easy to see that two-wheeled vehicles are more fatal in the event of an accident. We analyzed and researched a safety warning device in low-speed driving to identify critical factors for drivers in two-wheeled vehicle driving, and to identify areas that can be improved. Based on the analysis and research, an experiment was conducted and a warning system was applied to the manufactured motorcycle.

식이 단백질의 급원에 따른 당뇨쥐의 혈당 및 혈청지질에 미치는 영향

이수진,김영진,박수정,김희정,이윤희,유영상 동아시아식생활학회 1997 동아시아식생활학회지 Vol.7 No.2

This study was designed to find out the effects of soybean protein and milk protein between nondiabetic and diabetic rats. The experimental results are summarized as follows. 1. Total food intake was higher in diabetic soybean protein group than other groups but it was not significant. 2. The change of body weight was lower in diabetic soybean protein group than other groups and the soybean protein was effective to maintain the ideal body weight. 3. The effects of lowering total cholesterol and glucose in serum was higher in soybean protein groups than the milk protein groups.

개 아토피성 피부염 장기치료 1례

박은정,윤기영,박정호,이왕희,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1

A 7-year-old male castrated Shih-tzu dog was referred to the Veterinary Medical Teaching Hospital of Chungnam National University for severe pruritus. On physical examination were confirmed systemic erythema and alopecia, crust on the neck and flank region. Tape strip test identified numerous degenerative neutrophils and severe Malassezia infection. Treatment for severe pruritus was applied with systemic antihistamine therapy and topical therapy with antimicrobial shampoos. For the finding of appropriate treatment of atopic dermatitis, it was chosen six immune-related treatments. And clinical sign scores were evaluated by investigator with CADESI-03 after each application of six treatments. Application of human immunoglobulin G and leflunomide showed the remarkable regression of lesions.

실리콘 웨이퍼 공정용 알루미나 정전척의 제작과 특성에 관한 연구

천희곤,조동율,이영섭,박용균,최성호,정광진,Serguei Spoutai 울산대학교 기계부품 및 소재 특성평가연구센터 1999 연구보고서 Vol.1999 No.-

정전척의 유전체 물질로 열전도도와 유전특성 그리고 기계적 특성이 우수한 알루미나에 TiO₂첨가하여 유전체의 비저항을 변화시켜서 정전척(electrostatic chuck)에서 발생하는 정전력인 쿨롱힘(coulomb force)과 존슨-라벡힘(Johnsen-Fahbeck firce_의 영향을 규명하려 하였다. 그리고 비저항, 인가전압, 온도, 습도가 정전력에 어떠한 영향을 주는지 고찰하였으며, 인가전압에 따른 응답 특성에 관하여 고찰하였다. Alumina electrostatic chucks for silicon wafer process with wide range of electrical resistivity were fabricated by controlling the amount of TiO₂ addition (0 wt%, 1.3 wt%, 2 wt%, 2.8 wt%). The dependence of electrostatic force on applied voltage, temperature and humidity was investigated. In addition, response characteristics on applied voltage and relationship between electrical resistivity and electrostatic force characteristics such as Coulomb force and Johnsen-Rahbeck force were discussed

개에서 교통사고에 의한 폐좌성 1례

송우리,이시예,신에스더,박희서,정성목,송근호,김명철 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

A 4 years old, mixed male dog with a history of traffic accident was presented to the Veterinary Medical Teaching Hospital of Chungnam National University with tachypnea and respiratory distress. Physical examination showed that the dog was auscultated crackles sounds, dysynchronous abdominal breathing pattern, hemoptysis, hematuria, urodynia and right and left scleral congestion. Blood and blood chemical examination revealed that WBC, AST and ALT was highly elevated. Parenchymal pulmonary fluid and closed pneumothorax were observed by thoracic radiography. This case was diagnosed as pulmonary contusion. Intravenous fluid and oxygen was administered and also dexamethasone(1mg/kg, Ⅳ), furosemide(2mg/kg, Ⅳ), (ampicillin, 20mg/kg, Ⅳ) and meloxicam(0.2mg/kg, PO) were intravenously injected for 5 days. Abnormal clinical signs were disappeared after treatment.

고양이의 만성 췌장염 치료 증례

김현아,윤기영,박정호,이왕희,송근호,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1

A 5-year-old Russian blue cat was referred to the Veterinary Medical Teaching Hospital of Chungnam National University with the history of anorexia, lethargy, weight loss(6.5 to 4.8 kg) 2 weeks ago. Abdominal ultrasonography showed the following : increase of echogenicity of liver, irregular shape of gall bladder, hyperechoic region around duodenum. Pancreatitis, cholangitis, hepatic lipidosis was diagnosed by the ultrasonography. Anti- inflammatory therapy, antibiotic therapy was administered. Abdominal ultrasonography is a efficient available diagnostic tool but serum fPL test reveals the highest sensitivity and specifity result for feline pancreatitis. SNAP fPL test is newly released that can check pancreatitis within 10 minutes by same princple of Spec fPL test used in Gastrointestinal Laboratory of Texas A & M Univerrsity.

개에서 발생한 이버멕틴 중독증 1례

여동원,윤기영,박정호,이왕희,송근호,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1

A 1-year old, intact male Jin-do dog with ataxia, hypersalivation and anorexia was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Ivermectin toxicosis was diagnosed by the history taking, clinical signs, physical examination and neurological examination. After therapy with intravenous fluid and lipid emulsion administration, the clinical signs were found to have significantly improved.

中國 華北地區 南部(陝西省) · 華中地區 西部(四川省)의 植物調査

張珍成,崔虎,全正壹,李興洙,金輝,張桂羨 서울대학교 수목원 2005 서울大學校 樹木園 硏究報告 Vol.- No.25

본 연구팀은 중국 화북지구 남부(陜西) 및 화중지역 서부(四川)에 해당하는 지역의 온대 및 한대식물 자원 확보를 목표로 섬서성 남부 지역의Mt. Taibai(太白山)과 Mt. Qinling(秦嶺) 등지 및 四川 중서부지역의 XiaoJin-xian, Li-xian, Maerkang, Dujiangyan 등지의 자연식생 보존 상태가 우수한 산림 및 자연식생 보전 지역에서 7월에 1차 11일간 (陜西), 9월에 2차 9일간(四川) 조사를 실시하였다. 1차 조사에는 중국 측 4명, 한국 측 5명 등 총 9명이 현지 조사에 참여하였으며, 2차 조사에는 중국 측 2명, 한국 측 5명 등 총 7명이 참여하였다. 조사를 위해 이동한 총 거리는 1차 조사 약 600km, 2차 조사 약 1,200km였다. 조사 지역의 해발은 섬서성 1,500-2,500m, 사천성 1,800m-4,500m 지역으로써 온난대 혼효림, 온대 낙엽활엽수림, 침엽혼효림 및 아고산대 초원까지 다양한 식생 분포를 나타내었다. 1차 조사에서는 예비 조사의 성격을 포함하였으므로 이들 지역 모두를 조사하였고 2차 조사에서는 해발 3,000m 전후 지역의 온대 낙엽활엽수림 지역에서 집중적으로 자원 확보에 주력하였다. 본 조사 결과 陜西에서 51과 112속 179분류군에 대한 46점의 생체 및 종자를 확보하였으며, 四川에서 27과 41속 65분류군에 대한 63점의 생체 및 종자를 확보하여, 총 52과 114속 232분류군의 식물에 대한 표본 및 종자·생체를 확보하였다. 陜西 지역에서 확보한 주요 식물 자원은 Angelica 및 Populus속의 다수 종과 Triosteum pinnatifidum, Maddenia hypoleuca, Eleutherococcus giraldii, Angelica polymorpha 등 이었으며, 四川 지역에서 확보한 주요 식물 자원은 Acer, Berberis, Cotoneaster, Syringa, Sorbus 등이었다. 본 조사 결과 중국 화북지구 및 화중지역 전체와 비교할 때 상대적으로 좁은 지역만을 조사하였지만 큰 성과를 얻을 수 있었던 것은 陜西 및 四川 지역의 식물상이 매우 풍부하였던 것뿐만 아니라 다음과 같은 요소들이 복합적으로 작용한 것으로 판단된다. 첫째, 사업 목표의 구체화를 통한 조사원들의 협력 및 효율적 조사 수행을 유도하였다. 둘째, 현지 파트너의 우수한 역량을 바탕으로 조사 대상지의 선정 및 조사 수행이 원활하였다. 셋째, 충분한 사전 조사를 통해 상대적으로 좁은 지역에서 짧은 시간을 들여 효율적으로 자원을 확보할 수 있었다. 이들 내용은 향후 본 사업과 관련된 계속 사업에 적용할 수 있을 것으로 생각된다. This study was carried to investigate the flora of Shaanxi in southern China (Mt. Taibai, and Mt. Qinling) and Sichuan in western China (Xiaojin-xian, Li-xian, Maerkang, and Dujiangyan). The main purposes of this study were to obtain specimens, seeds and living collections with passport data for the potential use. This exploration was the forth of our whole research regarding the investigation of the flora of eastern Asia. The expedition was carried out by a team of scientists from T. B, Lee Herbarium, Seoul National University (SNUA), and Institute of Botany in Beijing (PE). This cooperation insured involvement by both Chinese and Korean experts in all targeted taxonomic groups, and was essential to successful execution of field studies in China. Field survey was carried out two times in July and September, 2005. We were primarily interested in areas between 1,500m and 2,500m altitude of Shaanxi and around 3,000m of Sichuan in order to collect cool and cold temperate woody taxa. The results obtained from this study were as followed: 1) vascular plants specimens were about 1,000 collections. 51 families, 112 genera and 179 taxa in Shaanxi area and about 200 collections, 27 families, 41 genera and 65 taxa in Sichuan area, 2) living collections were 46 taxa in Shaanxi area and 63 taxa in Sichuan area. Major seed and herbarium collections included genera Angelica, and Populus and Triosteum pinnatifidum, Maddenia hypoleuca, Eleutherococcus giraldii, Angelica polymorpha, and etc. in Shaanxi area and genera Acer, Berberis, Cotoneaster, Syringa, Sorbus, Spiraea, Rhododendron, Cotoneaster, Prunus, Zanthoxylum, Lonicera, Rosa, and Euonymus in Sichuan area.