위성영상 기반 밭 가뭄 평가 기법 및 지표 개발

전민기 ( Min-gi Jeon ),남원호 ( Won-ho Nam ),이희진 ( Hee-jin Lee ),서찬양 ( Chanyang Sur ),최민하 ( Minha Choi ),김성준 ( Seong-joon Kim ),하태현 ( Tae-hyun Ha ),조영준 ( Young-jun Jo ) 한국농공학회 2023 한국농공학회 학술대회초록집 Vol.2023 No.0

국내 논 가뭄대응능력의 경우 저수지 약 17,000개소 양수장 7,620개소 등 농업수리시설물에서 농업용수를 공급받고 있으나, 밭 가뭄대응능력의 경우 농업수리시설물 등에서 용수를 공급받는 관개전은 132,000 ha로 전국 밭 면적의 17.6% 수준에 그쳐 가뭄 대비 및 대응 능력이 부족한 실정이다. 농업수리시설물에서 용수공급을 받지 못하는 비 관개전의 경우 자연강우에 대부분의 용수공급을 의존하고 있으며, 이로 인해 장기간 가뭄 발생 시 극심한 피해가 발생한다. 또한, 국내 논·밭 면적대비 밭작물 면적 비율은 2009년 38.9%에서 2022년 49.3%로 증가하는 추세로 밭 가뭄에 대한 중요성이 증대되고 있다. 현재 농림축산식품부, 환경부, 기상청 등 다양한 기관에서 가뭄정보를 제공하고 있으나, 제공되는 정보가 저수지에 한정되거나 작물의 특성과 실제 재배기간을 고려한 가뭄 분석은 이루어지지 않아 밭 가뭄 대응에 한계가 발생한다. 농촌진흥청에서 운영하는 토양수분관측망의 경우 농업기상대, 지역별 시군센터, 시험포장 설치 및 복토한 교란 토양으로 실제 현장과 불일치가 다수 나타나 현장과의 괴리감이 나타나는 문제점이 있다. 미국가뭄모니터 (United States Drought Monitor, USDM)에서는 식생지수, 토양수분, 증발산량, 돌발가뭄 등 다양한 위성영상 기반의 가뭄 지수 및 모니터링 시스템이 존재하지만, 국내의 경우 위성기반 가뭄 모니터링 시스템이 전무한 실정이다. 증발산량을 활용한 위성영상 기반 가뭄지수인 증발스트레스지수 (Evaporative Stress Index, ESI)는 기존에 활용되고 있는 가뭄지수들과 비교하여 식생의 가뭄모니터링에 활용되고 있으며, 원격으로 감지된 열적외선 영상 및 지표면 온도 기반 초기 가뭄 스트레스를 전달할 수 있기 때문에 일반적인 기상학적 가뭄지수보다 가뭄 조기경보에 대한 활용성이 높은 장점이 있다. 본 연구에서는 위성영상 기반의 증발산량, 식생지수, 토양수분, 지표면온도 등 밭 가뭄 평가 인자를 선정하고 밭 가뭄 모니터링을 위한 평가 기법 및 지표를 개발하고자 한다.

호텔 廚房의 施設管理에 관한 硏究

河宗明,金琪訓 진주여자전문대학 1994 論文集 Vol.17 No.-

Most hotel managers focus on food and beverage management avoiding centralizang on the room department. Since the food and beverage sales of hotel as well as food service industry grow in the meaning market volumn,research of sales promotion is processing. In the management of food and beverage management, kitchen facility is main part of cause to the costs,accordingly, cutting off costs in the Kitchen must precede kitchen planning. This study shows the necessity of kitchen planning by analysis of kitchen area and equipment's layout. So the result of study are as follow. 1. In the planning hotel, the specitified kitchen planning should be established. kitchen planning needs stecitification and balance with whole building in the hotel. Especially, it is desirable to be perform after the sufficient communication among the hotel manager,architector,and employees in the kitchen. 2. Both the planning of chooing the kitchen equipments and equipment's layout should be effectively established. Because the kitchen has many dangerous factors such a broilers, ovens and facility. Consequently, through the improvement of work productively and save of costs, effective kitchen planning should result in the promotion of profits in the hotel food and beverage management.

우리나라 파프리카 수출단지 및 선과장의 병해충 조사

김기돈,이시원,강은하,신용길,전재용,허노열,이흥식 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

The disease and insect were surveyed locally in greenhouse, fruit packing house and store house of 51 farms in 13 towns having purpose of paprika exportation. By analysis, various disease and insect were not only founded locally but more ones detected in farms having old facilities and no natural enemy. We found 15 pathogens such as Fusarium spp., Alternaria solani, Leveilluila taurica, PepMV (Pepino mosaic virus) and TMV (Tobacco mosaic virus) in greenhouse, Fusarium spp. in fruit packing house and Penicillium spp. in store house. We found 15 insects in greenhouse such as Bemisia tabaci, rialeurodes vaporariorum and Myzus persicae in greenhouse, Hylobitelus haroldi in fruit packing house. However, the problem quarantine disease and insect for importation and exportation were not detected in inspection time.

호텔커피숍의 메뉴가격결정에 관한 연구

河宗明,金琪訓 진주여자전문대학 1993 論文集 Vol.16 No.-

Modern hotels have grown bigger in those sizes and have made a high class in those facilities in the social, economic changes recently. Hotel management is given much more weigh food & beverage sale than room service department. accouding to situation, the sucess or failure of F & B business is determined by kind service of employees, food qualty, and atmosphere which gives consideration of customer preference, good facilities for coffee shop as well as by the accurate market analysis and positive activity of sales promotion. Therefore, the result of this study is as following ; 1. In the menu planning, it is required that are rational menu management, good location, and good facilities management. 2. In the menu pricing, it is considered that are customer' needs, sales cost, and competition of hotel. 3. In the menu pricing, it is required that are customer's orieted menu development and profit.

철근 또는 강판을 이용한 철근콘크리트 전단벽의 휨성능개선에 관한 실험연구

하기주,서수연,신종학,최민권 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

The purpose of this paper is to study retrofit methods for improving the flexural capacity of RC shear wall. Four RC shear wall specimens are designed and strengthened by using reinforcement or steel plate. Cyclic loads are applied to the specimen under constant axial force. Test result shows that the strength and ductility of specimen is improved when it is strengthened using reinforcement or steel plate. The specimen retrofitted by using steel plate shows high ductility. However the strength contribution of one is not much. It is shown that the most effective method is both to install the additional flexural reinforcement and to confine the ends of wall.

Risperidone이 백서의 Schedule-Induced Polydipsia에 미치는 영향

이기철,이정호,윤도준,최영민,전성일,김태수,정홍경,하준명,정재현 大韓神經精神醫學會 2000 신경정신의학 Vol.39 No.3

연구목적 : 강박장애의 원인론중 세로토닌-도파민 가설에 기초하여 강박장애 동물모형으로 고려되는 고정된 시간 간격으로 평소의 먹이섭취량보다 작은 양의 음식물을 백서에게 장기간 공급하여 다음중(schedule-induced polydipsia : SIP)을 유발시켰다. SIP모형에 강박장애에 효과적이라고 알려진 선택적 세로토닌 재흡수 차단제로서 fluoxetine을 장기 투여하고, 신경절후 5-HT²와 도파민 D² 수용체를 동시에 차단하는 risperidone을 투여하고, 신경절후 도파민 수용체 차단제인 haloperidol을 투여하였다. 그결과로서 risperidone이 강박장애 동물모형으로 고려되는 SIP에서 어떤 영향을 미치는지 알아보았다. 방 법 : SIP를 유발하기 위해 각각의 사육상자에 1정당 90㎎의 사료를 자동급이장치 (automatic dispenser)에서 60초당 1정씩 고정된 시간 간격으로 하루에 150분씩 공급하였다. 4주간 고정된 시간 간격으로 머기를 공급하고 매주 음수량과 체중을 측정한 실험 동물과 동등한 사료의 양을 한번에 덩어리로 공급받은 통제 집단의 체중과 음수량을 비교하였다. SIP 행동변화를 보인 실험 동물들을 fluoxetine 5㎎/㎏(N=8), risperidone 0.1㎎/㎏(N=8), haloperidol 0.1㎎/㎏(N=8), 그리고 vehicle 대조군 1㏄/㎏(N=8)으로 나누고 각각의 실험 동물군에서 3주간에 걸쳐서 실험 약물을 매일 복강내 주사하였다. 매주 실험 동물의 음수량과 체중을 측정, 비교하였다. 결 과 : 1) 고정된 시간 간격으로 제한된 먹이를 공급한 실험 동물군은 1주부터 4주에 걸쳐서 기저치보다 유의한 음수량의 증가를 보였다. 반면 통제 집단은 2주째 음수량이 일시적으로 증가한 소견 이외에 4주간의 실험 기간중 유의한 변화는 보이지 않았다. 실험 동물과 통제 집단간의 음수량에서 3주와 4주째에 실험 동물이 통제 집단보다 유의하게 높은 음수량을 보였지만 양군간에 체중의 차이는 보이지 않았다. 2) 각각의 실험 동물군 내에서 risperidone 0.1㎎ 투여군은 약물 투여 2주부터 3주까지 기저치 음수량과 비교하여 유의한 저하를 보였다. Risperidone 0.5㎎ 투여군은 약물터여 3주에서 기저치의 음수량과 비교하여 유의한 저하를 보였다. Fluoxetine 투여군은 약물 투여 시작 1주부터 3주에서 기저치의 음수량과 비교하여 유의한 저하를 보였다. 한편, haloperidol 투여군과, vehicle은 3주간에 걸친 약물 투여에서 각각의 기저치 음수량과 비교하여 차이를 보이지 않았다. 3) 실험 동물 각 군간에 약물 투여 시간 경과에 따른 음수량을 비교한 바, 약물투여 1주에서 각 군간에 유의한 차이는 없었다. 약물 토여 2주에서 fluoxetine 투여군, risperidone 0.1㎎ 투여군, 그리고 risperidone 0.5㎎투여군이 haloperidol 투여군과 비교하여 유의한 차이를 보였다. 약물투여 3주째에 fluoxetine투여군, risperidone 0.1㎎ 투여군, 그리고 risperidone 0.5㎎투여군이 haloperidol 투여군, vehicle과 비교하여 유의한 음수량의 저하를 보였다. 결 론 : 백서의 강박 행동은 fluoxetine, risperidone에 의해 효과적으로 억제되었으나 haloperidol에는 반응이 없었으므로, 임상에서 난치성 강박장애의 치료에 비정형 항정신병 약물 투여를 고려해 볼 수 있다고 제안한다. Objectives : This study was designed to evaluate the effects of risperidone on the schedule-induced polydipsia(SIP) which is one of animal model of obsessive-compulsive disorder in rats. We administered risperidone as a serotonin and dopamine blocking agent, fluoxetine as a selective serotonin reuptake inhibitor, and haloperidol as a dopamine antagonist to rats which showed schedule-induced polydipsic behaviour. Methods : Sprage-Dawley rats weighing 200∼250gm were individually housed and maintained and allowed free access to water. The rats were placed on a restricted diet. To induce polydipsia, rats were placed in the cage where a pellet dispenser automatically dispensed 90㎎ pellets on a fixed-time 60 seconds(FT 60s) feeding schedule over 150 minute test session per day. Water was available at all times in the cage. After 4 weeks of daily exposure to the FT 60s feeding schedule, experimental rats met a predetermined criterion for polydipsic behavior(greater than 3 times of water per session on average). 5 groups of rats were administered risperidone(0.1㎎/㎏, i.p), risperidone(0.5㎎/㎏, i.p), fluoxetine(5㎎/㎏, i.p), haloperidol(0.1㎎/㎏, i.p), and vehicle(1㏄/㎏, i.p) for 3 weeks. The rats were tested once a week to access schedule induced polydipsic behavior. Water bottles were weighed before and after the 150-minute test session. The chronic effects of administration of experimental drugs on schedule induced polydipsic behavior were analyzed with ANOVA and Scheffe test as a post-hoc comparison. In order to measure water consumption in non-polydipsic food-deprived rats, a separate group of rats(N=8) was individually housed and given a single bolus(14.5gm) of food per day which maintained them at their average body weight. Results : The results were as follows ; 1) After 4 weeks of scheduled feeding procedure, the experimental group showed significant differences than the bolus control in the amount of water consumption as compared with their average water intakes for 4 weeks. At the same periods, there were no differences between the experimental group and the bolus control in the body weight. 2) The fluoxetine group showed significant decrease in the amount of water intake at 1st, 2nd, and 3rd weeks of drug treatment as compared with their average amount of polydipsic water intakes. The risperidone 0.1㎎ group and the risperidone 0.5㎎ group showed significant decrease in the amount of water intake at the 3rd weeks of drug treatment as compared with their baseline of polydipsic water intakes. However, the haloperidol group and the vehicle control group showed no changes of amounts of water intake for 3 weeks of treatment as compared with their baseline of polydipsic water intakes. 3) The fluoxetine group(22.5±10.4ml) showed significantly lower amounts of water intake than haloperidol group(41.3±7.1ml) at 2nd weeks of drug treatment. And also the fluoxetine group(18.8±3.5ml) showed significantly lower amounts of water intake than the haloperidol group(35.0±11.7ml) and the vehicle control(34.4±6.8ml) at 3rd weeks of drug treatment. The risperidone 0.1㎎ group and the risperidone 0.5㎎ group showed significantly lower amounts of water intake than the haloperidol group(35±11.7ml) at 2nd weeks and the vehicle control(37.5±12.5, 34.4±6.8ml) at 2nd and 3rd weeks of drug treatment. Conclusions : Above findings suggest that the fixed time feeding procedure for schedule induced polydipsia could be applied as an effective animal model of obsessive compulsive disorder for the evaluation of pharmacological challenge study. We confirmed that chronic treatment with risperidone revealed antipolydipsic effect as effective as fluoxetine on the schedule-induced polydipsic behaviour but the onset of effect was later than fluoxetine.

기능범주 AgrP에 관한 연구

김지숙,서하석 群山大學校 1996 論文集 Vol.23 No.-

In recent literatures there has been a debate over whether the INFL should be spilt up into TenseP and AgrP (resolving the doble- headedness of INFL) in order to explain the word order differences in two languages in terms of general universal grammar. Under the Chomskian’s minimalist syntax, Chomsky (1991, 1993, 1995) regards AgrP as an independent maximal projection. This paper aims to explain the motivation of positing AgrP and the function of AgrP and then to show the reason AgrP must be deleted under the Attract-F by Chomsky(1995), and then to analyse strength and weakness by substituting a light verb v after deleting Agr.

플라이애쉬와 머드를 대체 혼입한 콘크리트의 특성에 관한 실험적 연구

안문기,이정섭,송하영,김을용 大田産業大學校 2002 한밭대학교 논문집 Vol.19 No.-

The purpose of this study is to inverstigate the influence of proportioning methods of fly ash and mud on the workability and the engineering properties of concrete. The main part of this experiment is the comparison and analysis of the basic properties of the concrete replaced and mixed with fly ash and mud. The test items are compressive strength and non-destructive test in hardened concrete, also slump, flow, air contents and mixing temperature in fresh concrete according to W/c, replacement ratio of fly ash and mud. The test results are as follows ; 1) As the increase of replacement ratio of fly ash and mud, the workability of concrete is decrease as compared with the plain concrete. 2) As the increase of replacement ratio of fly ash and mud, the compressive strength of concrete is increase as compared with the plain concrete and the non-destructive test results of concrete are better than the plain concrete.

Clozapine이 백서의 Schedule-Induced Polydipsia에 미치는 영향

이기철,정홍경,이정호,홍승범,최영민,전성일,정재현,하준명 대한생물치료정신의학회 2000 생물치료정신의학 Vol.6 No.2

Object : This study was designed to evaluate the effects of clozapine which is one of most useful atypical antipsychotics in the schedule-induced polydipsic rat which is an animal model of obsessive-compulsive disorder. Methods : Spraque-Dawley rats were placed in automatic cage where a pellet dispenser automatically dispensed 90mg pellets on a fixed-time 60 seconds(FT- 60s) feeding schedule over 150-minute test session for 4 weeks. After 4 weeks of daily exposure to the FT-60s feeding schedule, experimental rats met a predetermined criterion for polydipsic behavior(greater than 3 times of water per session on average). Rats were stratified into clozapine(0.34mg/kg,i.p.), clozapine(14.63mg/kg,i.p.), clomlpramine(5mg/kg,i .p.), and vehicle (1cc/kg,i.p.) group and treated with each drugs for 3 weeks. To identify the non-polydipsic food-deprived rats, a separate group of rats(N=8) were individually housed and given a single bolus(14.5gm) of food per day which maintained them at their average body weight. Results : The results were as follows ; 1)After 4 weeks of scheduled feeding procedure, the experimental group showed significant differences than bolus control in the amount of water consumption as compared with their baseline of water intakes for 4 weeks. At the same periods, there were no differences between the experimental group and bolus control in the borty weight. 2)The clomipramine group, the clozapine 0.34mg group and the clozapine 14.63mg group showed significant decrease in the amount of water intake for at 2nd & 3rd week of drug treatment as compared with their baseline of polydipsic water intakes. But, the vehicle control group showed no changes of amounts of water intake for 3 weeks of treatment as compared with their baseline of polydipsic water intakes. Conclusion : Above findings suggest that the fixed time feeding Procedure for Schedule induced polydipsia as an animal model of obsessive compulsive disorder was effective to the evaluation of pharmacological challenge study. In clinical situation, the authors suggest that atypical antipsychotic drugs which act as serotonin and dopamine receptor antagonist may be helpful to improve the symptoms of the patients with treatment refractory obsessive-compulsive disorder.

천궁의 GABAА-Benzodiazepine 수용체 복합체와의 상호작용

강지현,이동웅,하정희 대한생물치료정신의학회 1997 생물치료정신의학 Vol.3 No.2

요약천궁(Cnidium Officinale)는 미나리과 다년생초본식물로서 대뇌 억제 및 진정 작용이 있다는 여러 문헌 등을 참고하여 볼 때 천궁은 항불안작용을 나타낼 가능성이 시사되었다. 이에 본 연구는 천궁을 사용하여 실험 동물에서 천궁의 항불안 작용을 검색하고 그 작용기전의 일부를 밝히고자 천궁을 극성 및 비극성 용매로 추출하여 분획을 만들고 이들 분획의 GABA-benzodiazepine 수용체 복합체 결합반응에 미치는 영향을 관찰하고자 하였다. 실험 결과 천궁 표준추출물 경구투여는 생쥐의 elevated plus maze 검사에서 그 효과는 diazepam 1 mg/kg 투여 후 실시한 elevated plus maze 검사 결과보다 낮았으나, 개방통로에로의 진입회수 및 개방통로에서의 체류시간을 증가시킴으로써 불안해소작용을 나타내었다. 또 천궁의 표준추출물은 benzodiazepine 수용체 길항제인 [3H]Ro15-1788 결합을 억제함으로써 수용체 활성물질의 존재 가능성이 관찰되었다. 이러한 행동검사상의 불안해소작용 및 benzodiazepine 수용체 활성도를 나타내는 구성성분을 추적하고자 천궁의 표준추출물의 분획화를 실시하였는데, 이를 통하여 얻은 각 분획들을 사용하여 수용체 활성도를 검색한 결과, 모든 분획에서 활성도를 나타내었으나 그 중 chloroform분획의 활성도가 crude한 추출물인 methanol 추출물이나 다른분획에 비하여 가장 높은 활성도를 나타냄을 관찰하였다.천궁의 chloroform분획은 [3H]flunitrazepam의 흰쥐대뇌피질조직에 있는 benzodiazepine 수용체에 대한 결합반응을 억제시켰으며, 이러한 억제도는 GABA 및 chloride 존재에 의해 더욱 항진되는 positive GABA shift 현상이 관찰되었다. 이상의 결과를 종합해볼 때, 천궁의 chloroform분획내에는 benzodiazepine 수용체에 대해 효현제 활성을 지니는 물질이 있음을 추측할 수 있으며, 이는 천궁의 항불안작용의 중요한 한 기전으로 생각된다. C. Officinale is a medicinal plant which has been known to have anxiolytic and sedative activity. A survey of the relevant literature has indicated that the putative anxiolytic activity of C. Officinale has not been scientifically investigated. Therefore, the present study was designed to assess anxiolytic property and interaction with benzodiazepine receptor of C. Officinale. The putative anxiolytic activity of methanol extract of C. Officinale was performed in mice using an elevated plus maze paradigm. Chronic oral administration of C. Officinale showed anxiolytic action in mice. The interaction of C. Officinale with benzodiazepine receptor was investigated using rat cortices. Methanol extract of C. Officinale inhibited the binding of [3H] Ro 15-1788, a selective benzodiazepine receptor antagonist to benzodiazepine receptor of rat cortices. Chlorform fraction of methanol extract showed higher binding activity to benzodiazepine receptor than crude extract by methanol. GABA significantly enhanced the potency of C. Officinale in inhibiting [3H] flunitrazepam, a selective benzodiazepine receptor agonist, binding to benzodiazepine receptor. From these findings, it can be concluded that substance or substances with neurochemical properties characteristic of a benzodiazepine receptor agonist may contribute to the anxiolytic property of C. Officinale.