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1930년대 중반 조선농회의 배합비료 배급사업과 도열병 예방의 실패
이대열 한국역사연구회 2022 역사와 현실 Vol.- No.123
Analyzed here is the Joseon Agriculture Association(Joseon Nong’hwe)’sCompound fertilizer Distribution project. The goal of this task is to take a lookat Japan’s Colonial agriculture policy in Joseon during the 1930s, andunderstand such policy’s contents and nature in terms of agricultural productionsupervision. In the 1930s, the Joseon Governor General office shifted the focus of itsagriculture policy from land improvement to agricultural improvement. However, at the time there were too much nitrogen fertilizer products at theirdisposal while there was not enough potassium fertilizer at all. Due to suchshortage a rice blast disease started to spread, and that was what triggered theJoseon Agriculture Association’s Compound fertilizer distribution project. It wasan attempt to prevent the rice blast disease from spreading any further, and itwas the very first effort of such sort that ever actually took place. Unfortunately, the Joseon Agriculture Association was not an industrialassociation, so it had no capital(union dues) of its own. And as there was noprecedence, the association was not able to secure any subsidy or grant. As aresult, the Joseon Agriculture Association’s Compound fertilizer distributionproject was in danger of derailing from its original objective. Pursuingcommercial loans to address financial difficulties led to collecting new fees fromits members to compensate for the debt, and that created a dilemma for theassociation which was not able to secure enough amount of expensivepotassium fertilizer in the first place. So dependence on nitrogen fertilizerscontinued, and the efforts to prevent further spreading of the rice blast diseaseeventually failed. The rice blast disease continued to threaten the agriculturalhouseholds’ stability, while making it very difficult for them to maintain thetendency of increase in rice production.
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이대열,Lee, Dae-Yeol 한국방위산업진흥회 2000 國防과 技術 Vol.- No.262
과학과 기술의 발달로 급격히 발전하는 무기체계와 전략전술은 현대전의 양상을 과거의 대량물량전과는 달리 최단기간에 최대의 전과를 거둘 수 있도록 "속전속결" 중심으로 변화되었다. 이러한 속전속결전의 생명은 신속한 제공권 장악과 그에 따른 입체 기동전에 의한 기동력 확보이다. 제공권 장악에 있어 전투기의 미비점을 보완해오던 헬기는 잇따른 첨단장비와 기술 개발로 지상전의 핵심전투력인 전차의 기능에까지 그 영역이 확대되는 추세에 있으며, 전차의 정체성에 대해 재고의 필요성을 요구하게 되었다. 과연 헬기는 전차를 대체할 수 있는가? 이 글은 헬기와 전차 기술개발의 현재와 미래를 살펴보고, 각각의 기능 및 운용을 면밀히 분석하여 그 발전개념의 타당성을 검토하였다.
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이대열,김종호,정세윤,조승현,김휘용,최진수,Lee, D.Y.,Kim, J.H.,Jeong, S.Y.,Cho, S.H.,Kim, H.Y.,Choi, J.S. 한국전자통신연구원 2018 전자통신동향분석 Vol.33 No.3
Assessment technologies regarding the perceptual quality of images and videos have been receiving significant attention, as they serve as essential tools for monitoring and improving the quality of various media services. In this paper, we review the technology trends of recent studies on the perceptual quality assessment of images and videos, and discuss the future direction of this research field.
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비만 여성에서 운동 전후 혈장 Ghrelin 농도의 변화
이대열,강은영,김민선,박은혜,김기진 대한소아내분비학회 2007 Annals of Pediatirc Endocrinology & Metabolism Vol.12 No.2
Purpose : Ghrelin is the known orexigenic hormone as well as an endogenous ligand for the growth hormone secretagogue receptor and has been shown to be related with the regulation of energy homeostasis. To investigate the changes of plasma ghrelin levels in response to weight loss induced by exercise, we measured fasting plasma ghrelin levels in obese and control groups before and after exercise intervention. Methods : According to body mass index (BMI), total 32 adult women were divided into obese group (n=14, BMI≥25 kg/m2) and control group (n=18, BMI<25 kg/m2). All subjects underwent weight reduction exercise intervention for 3 months. Before and after exercise, we measured body compositions, serum lipid profiles, serum glucose, plasma ghrelin levels in all subjects. Results : At baseline, the plasma ghrelin levels in obese group were significantly lower than those in the control group. After the exercise intervention, the plasma ghrelin levels increased significantly from 174.8±40.8 to 235.9±53.1 pg/mL (P<0.05) in obese group and from 244.4±42.6 to 276.5±45.1 pg/mL (P< 0.05) in control group. The changes of plasma ghrelin levels in obese group (38.7±30.8 pg/mL) were significantly higher than those of the control group (14.6±20.3 pg/mL, P<0.05). However, there was no significant relationship between the changes of plasma ghrelin levels and various parameters in the obese group after exercise. Conclusion : In this study, the plasma ghrelin levels in obese adults were significantly increased than those in the control group associated with exercise-induced weight loss. Further studies are needed to establish the precise roles of ghrelin in the regulation of energy homeostasis in obesity. 목 적 : 이번 연구는 성인 비만군에서 운동 전후 체중 감소와 관련하여 에너지 항상성 조절에 관여하는 것으로 알려진 혈장 ghrelin 농도의 변화가 있는지 알아보기 위한 것이다. 방 법 : 총 32명의 성인 여성을 대상으로 BMI 25 kg/ m2를 기준으로 18명의 정상 대조군과 14명의 비만군으로 구분하여 12주간의 체중 감량운동을 실시하였다. 각 운동 전후 체중, BMI, 체질량 지수, 체지방 측정을 포함한 신체 계측과 혈장 지질 농도 및 ghrelin의 농도를 측정하여 두 군에서의 각 측정치의 변화량을 비교하였다. 결 과 : 운동 전 비만군에서는 체중, BMI, 체지방률, WHR와 총 콜레스테롤이 대조군에 비해 유의하게 높았으며, 운동 전 혈장 ghrelin의 농도는 성인 비만군에서 정상 대조군에 비해 현저하게 감소되어 있었다. 운동 후 체중 감소와 관련하여 비만군과 대조군 모두에서 혈장 ghrelin 농도가 증가하였으며, 혈장 ghrelin의 평균 변화량은 대조군에 비해 비만군에서 유의하게 높았다. 그러나 두 군에서 운동 전후의 체중 감소량과 혈장 ghrelin 농도 간의 유의한 선형적인 상관관계는 없었으며, 전체 대상군에서 운동 전 혈장 ghrelin 농도는 체중, BMI, 체지방률, 총 콜레스테롤, 유리 지방산 농도와 유의한 음의 상관관계를 나타냈고, 운동 후 혈장 ghrelin 농도의 변화량은 BMI의 변화량과 유의한 음의 상관성이 있었다. 하지만 비만군에서 운동 후 혈장 ghrelin 농도의 변화량과 상관성 있는 어떤 신체계측치 및 생화학적 검사치는 없었다. 결 론 : 이번 연구에서 비만 성인에서의 운동 전 혈장 ghrelin 농도는 정상 대조군에 비해 유의하게 감소되어 있었고, 운동 후에는 체중 감소와 관련하여 비만군에서 대조군에 비해 더 많은 혈장 ghrelin 농도의 증가가 있었으며 이는 ghrelin이 체중 감소에 따른 보상반응으로 에너지 항상성을 유지하려는 기전에 의한 것으로 사료된다.
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이대열,이인원,조재호,김용빈,주현준,정나현,박준성,Lee, Dae-Yeol,Lee, In-Won,Joe, Jae-Ho,Kim, Yong-Bin,Ju, Hyun-Jun,Jung, Na-Hyeon,Park, Jun-Sung 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.6
A guidance kit transforming a general purpose bomb into an air-to-surface gliding bomb was developed. This guidance kit consists of a flight kit and a tail kit. Flight kit contains deployable wing, GPS/INS integrated navigation system, guidance and control system. Also this guidance kit was designed to use neither electrical nor mechanical interface with aircraft, and to increase dramatically the survivabilities of pilot and aircraft with the high accuracy and the mid-range non-powered gliding capability.
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이대열 의과학연구소 1989 全北醫大論文集 Vol.13 No.3
The author reviewed 72 cases of idiopathic nephrotic syndrome who were admitted to the pediatric department of chonbuk National University Hopital during last 10 years. The following results were observed. 1) Age and sex distribution. The most common age group was between 3 and 5 years of age. Male to female ratio was 7:1 2) Duration of illness before admission. 50 patients(69.4%) were admitted within 6 months of illness. 3) Clinical manifestations. Generalized edema(72.2%), ascites(47.2%), and gastrointestinal disturbance(31.9%) were major clinical manifestations. 4) Onset of diuresis after seroid therapy. In 37 patients(51.4%), diuresis was occurred within first one week after steroid therapy. 5) Disappearance of proteinuria after steroid therapy. Within first two weeks after steroid therapy, proteinuria was disappeared in 38 patients(52.7). 6) Response to initial steroid therapy. Among 72 patients whoo received initial continuous steroid therapy, 44 patients(61.1%) were in complete remission group, 16 patients(22.2%) were in partial response group and 12 patients(16.7%) were in poor response group. 7) Relationship between steroid response and nephritis symptoms. Hematuria, hypertension and elevated serum creatnine were more frequently observed in partial and poor response group than in complete remission group. 8) Frequency of relapses during first one year. Among 20 patients who were follow up over one year after steroid therapy, 15 patients were relapsed within first one year after steroid therapy. 9) Response to immunosuppressant therapy. Cyclophosphamide therapy were effective in 15 of 20 patients who received cyclophosphamide therapy with steroid therapy. 10) Histopathological findings. Most common finding was minimal change(48%).
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