답리작 사료작물의 랩사일리지 생산비 분석

하유신(Yu Shin Ha),박경규(Kyung Kyoo Park) 한국초지조사료학회 2012 한국초지조사료학회지 Vol.32 No.1

본 연구는 겨울철과 여름철에 답리작 사료작물의 랩사일리지 생산에서 연구보고된 조사료 재배품종과 재배방법을 기준으로 하였을 때, 소요 기계에 따른 기계화 생산 작업의 특성과 부담면적, 기계 이용비용을 분석하여 조사료 생산비용을 산출하였다. 생산비용은 작물종류(호밀, 청보리, IRG, 수단그라스), 파종방법 (산파, 조파)과 트랙터 마력 (50, 75, 100, 130 ps)에 따른 경작규모별 (부담면적 ha별), 부담면적대비 경작지비율별 (25, 50, 75, 100%), 작부체계별(품종 숙기별, 동·하계 작물별)로 분류하여 산출하였다. 트랙터 100 ps, 조파를 기준으로 단일 품종 재배보다 호밀, IRG와 청보리 등을 품종 숙기별로 재배할 때 파종은 20일에서 30일로, 수확은 약 30일에서 40일로 시기가 늘어나기 때문에 부담면적이 57.1 ha에서 77.5 ha로 증가하였다. 동·하계 작물 연중 재배시 생산비용은 100 ps 트랙터, 조파, kg-TDN 기준으로 호밀 + 수단은 250원, 청보리 + 수단은 215원, IRG + 수단은 234원, 호밀 + 청보리 + IRG+ 수단은 233원으로 나타났다. 이는 연중 재배하지 않는 경우에 비해 고정비가 줄어들기 때문에 생산비용은 약 30~50% 절감되었다. 따라서 답리작 사료작물의 랩사일리지 생산시 노동피크와 수확시기의 분산, 기계장비의 효율성을 제고할 수 있도록 품종 숙기별 연중 재배 작부체계의 이용이 바람직한 것으로 판단되었다. Mechanized operation model and mechanical cultivation technology for winter barley, rye, Italian ryegrass and sudan grass wrap silage production system at the paddy field for cropping system was developed. Also, a series of experiment were performed and lots of data were collected and analyzed to develope mechanical technology, coverage area, and optimum size of the farm (break-even point) for wrap silage production system. The coverage area for winter barley or rye wrap-silage production system is determined around 61.9, 73.4, 77.5, 88.2 ha in the case of drill seeding and different ripening species by tractor power 50, 75, 100, 130 ps, respectably. The break-even point of the farming size is analyzed as 20 ha and its production cost is estimated around 367, 383, 430, 443 won/TDN-㎏ in the case of winter barley wrap-silage by tractor power 50, 75, 100, 130 ps, respectably. The break-even point of the farming size is analyzed as coverage area and its production cost is estimated around 237, 215 won/TDN-㎏ in the case of winter barley wrap silage and sudan grass by the tractor power 50, 100 ps, respectably.

논문 : 강원도 양양지역 소나무림의 지상부 바이오매스와 수관층 연료특성에 관한 연구

김성용 ( Sung Yong Kim ),이영진 ( Young Jin Lee ),장미나 ( Mi Na Jang ),서연옥 ( Yeon Ok Seo ),구교상 ( Kyo Sang Koo ),정성철 ( Sung Cheol Jung ),김경하 ( Kyung Ha Kim ) 한국임학회 2012 한국산림과학회지 Vol.101 No.2

본 연구의 목적은 강원도 양양지역에 분포하는 소나무림을 대상으로 지상부 바이오매스와 수관층 연료특성에 대하여 분석하고자 하였다. 연구대상지는 강원도 양양군 현남면 하월천리 일대 소나무림으로 선정하였으며, 총 13본의 표본목을 벌채하여 분석하였다. 본 연구 결과에 의하면, 양양지역 소나무림의 줄기밀도(g·cm-3)는 0.347~0.409, 지상부 바이오매스 확장계수는 1.251~1.419의 범위로 나타났다. 지상부 연료량은 총 161.6 Mg·ha-1로 나타났으며, 줄기 126.4 Mg·ha-1, 가지 29.3 Mg·ha-1, 잎 5.9 Mg·ha-1로 나타났다. 수관층 연료특성 인자에 관한 연구에서는 수관화 확산 시 연소될 수 있는 연소가능 연료(잎~1 cm이하 가지)의 비율은 45.2%로 나타났고, 연료량을 수관체적으로 나눈 연소가능 연료밀도(kg·m-3)는 평균 0.178로 나타났다. 본 연구의 결과는 소나무림의 바이오매스 및 탄소 흡수량 추정과 수관화 위험성을 연료적 관점에서 평가하는데 있어 유용한 기초자료가 될 것으로 사료된다. The objective of this study was to analyze the above-ground biomass and crown fuel characteristics of Pinus densiflora stands in Yangyang, Gangwon province. A total of thirteen representative trees were destructively sampled in Yangyang region. The results showed that the stem density (g·cm-3) was 0.347~0.409, whereas the above-ground biomass expansion factors ranged from 1.251~1.419. In terms of crown fuel biomass, the above-ground biomass was 161.6 Mg·ha-1 while the stem biomass, branch biomass and needle biomass were 126.4 Mg·ha-1, 29.3 Mg·ha-1 and 5.9 Mg·ha-1, respectively. Needles and twigs with less than 1 cm diameter accounted 45.2% of the total crown fuel load. The available crown bulk density, which was calculated by dividing the crown fuel load to the crown volume, was 0.178 kg·m-3. The results of this study on the biomass and carbon stocks estimation of the Pinus densiflora together with the crown fire hazard assessment based on crown fuel loads are very significant information for the forest managers.

항암제 AG60이 흰생쥐 위점막 상피세포의 DNA합성에 미치는 영향 : 자기방사법적연구

박경호,안의태,고정식,하상선,한영복,정영신,홍은경,유보림,김상건,이경영,강종구 대한해부학회 1999 Anatomy & Cell Biology Vol.32 No.1

Experimental study for sub-seasonal basic state changes on Rossby wave propagation

Kyung-Sook Yun,Seong-Yeol Kim,Kyung-Ja Ha1 한국기상학회 2011 한국기상학회 학술대회 논문집 Vol.2011 No.4

제올라이트 HL 및 몰레규라시이카본 5A에 低級炭化水素의 吸着

河白顯,崔京一 漢陽大學校 環境科學硏究所 1983 環境科學論文集 Vol.4 No.-

표면흡착모델이 아닌 充塡모델이 적용되는 微細孔흡착계 CH₄-HL, ??-HL, n-??-HL, ??-MSC-5A, C₂H₄-MSC-5A 에 대하여 포텐셜이론에서 얻는 Dubinin-Astarkhov 等溫式, Cohen-Kisarov 等溫式 및 河에 의하여 변형된 Cohen-Kisarov 식을 적용하였다. 이 식들로부터 이론적으로 미분 및 적분흡착열, 미분 및 적분엔트로피를 구하고, 실험적으로 Clausius-Clapeyron 식에 의하여 구한 흡착열과 엔트로피를 각각 비교하여 다음과 같은 결론을 얻었다. Dubinin-Astrarkhov 식이나 Cohen-Kisarov 식이 모두 적용되지 않는 계에 대하여 河에 의해 변형된 Cohen-Kisarev 식이 잘 성립된다. 그러나 같은 저급의 탄화수소계 이더라도 n-??과 같은 긴 분자가 제올라이트 HL과 같은 직선형 細孔에 흡착될 때는 적용되지 않으며 오히려 Dubinin-Astarkhov식에서 두 형의 불균일 분포로 된 흡착제로 설명된다. The Dubinin-Astarkhov's equation, the Cohen-Kisarov's equation, and the modified Cohen-Kisarov's adsorption isotherm equation by Ha, that were based on the potential theory of adsorption and interpreted as the volume filling adsorption model rather than the surface layer adsorption one, were applied on the adsorption systems, such as CH₄-HL, ??-HL, n-??-HL, ??-MSC-5A, C₂H₄-MSC-5A, which have micropores structure. From these equations, differential and intergral heats and entropies were calculated and compared with the measured values determined from the Clausius-Clapeyron equation. It leads to the conclusion that, for the adsorption systems in which the Dubinin-Astarkhov equation and the Cohen-Kisarov equation were not well fitted with the measured values, the modified form of Cohen-Kisarov's equation by Ha was fitted well with the measured ones in isotherms and heats of adsorption. But, in the adsorption of the slightly longer chain hydrocarbon such as n-butane on HL which has a linear type pore structure, the modified Cohen-Kisarov's equation was not fitted. However, it could be interpreted by the Dubinin-Astarkhov's equation two types of heterogeous adsorption distribution in pores, using.

군자산 자생 망개나무 임분의 구조적 특성

이경수 ( Kyung Su Lee ),정태영 ( Tae Young Jung ),박철하 ( Chull Ha Park ),한주환 ( Ju Hwan Han ),이귀용 ( Gui Yong Lee ),구창덕 ( Chang Duck Koo ) 한국산림과학회 2012 한국산림과학회지 Vol.101 No.4

Berchemia berchemiaefolia is a rare and endangered species and important as a honey resource. The purposes of this study were to investigate physical environmental factors and the population and community structure of Berchemia berchemiaefolia stands at Mt.Gunja in Sogrisan National Park in Chungcheongbuk-do. The B berchemiaefolia stands belonged to deciduous forests in mid-temperate zone and were 5~25˚ in slope 30~90% in rock ratio and 6.37 in soil pH. They had 656 trees within the area of 36 ha and their average density was 18.2 trees per ha. The trees within the stands were 11.8m in tree height 22.6 cm in DBH and 56 years old. The number of branched stems was the maximum 8 and 32.9% of the trees were branched. B. berchemiaefolia trees over 12cm diameter occupied 89.9% but young B. berchemiaefolia did only 11%. The structure of B. berchemiaefolia stands were classified into three groups as Acer pseudo-sieboldianum & A. mono community group A. pseudo-sieboldianum & Quercus aliena community group and B. berchemiaefolia & Quercus serata community group. The mean importance value of B. berchemiaefolia was 10.9% while species diversity of the community ranged 0.77~1.31 and interspecific competition ranged 0.78~0.94. The dominance of the community ranged of 0.07~0.29 and the evenness ranged 0.71~0.93. Although B. berchemiaefolia was dominant in the habitat but the species was already in natural successional stage to cornus controversa or Ulmus davidiana var. japonica.

노인의 성격과 죽음태도에 관한 탐색적 연구

유경원,박상하,김혜숙,정경인 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.1

Background and Objectives: The purpose of this study was to analyze how the personality of elderly people affects their attitude toward death. Method: For this study, we investigated 86 old men and women with over the age of 60 in C and J nursing home for the old at Gwang ju city during January 5 to March 31, 2003. As a research tool, the total 20 questions of modified Shanans assorted survey method to measure personality style were used and the reliability of this study was Cronbach's α= 0.7507. For determination of attitude of death, the total 36 questions of FODS, which has been used by Suh, Hye-Kyung were used and the reliability of this study was Cronbach's α= 0.60. Using SPSS program, the collected data were analyzed by Frequency, ANOVA and Pearson correlation coefficient, respectively. Results: In the analyze of the results of personality complying with general characteristics, there were statistically significant differences in age. It was shown that the personality of the old with the age of 61-65 is positive. There were no significant differences in thee attitude toward death complying with general characteristics. The hypothesis in this study, the correlation that the more positive personality of the old, the more positive attitude toward death was supported. Conclusion: Since the elderly people with more positive personality may have more positive attitude toward death, it is considered that the old themselves, their family and workers might help to haw positive personality for the positive attitude toward death.

직업관련 극 놀이 활동이 유아의 진로인식 및 자아개념에 미치는 영향

지미하 ( Mi Ha Ji ),이경화 ( Kyung Hwa Lee ) 한국유아교육학회 2016 유아교육연구 Vol.36 No.2

본 연구는 직업관련 극 놀이 활동이 유아의 진로인식 및 자아개념 향상에 효과적인지를 확인하는데 목적을 두었다. 이에 따라 서울 소재 B, Y 국공립 어린이집 2개 반에서 만 5세유아 40명을 무선 선정하여 실험집단과 통제집단에 각각 20명씩 배정하였다. 실험집단 유아들을 대상으로 직업관련 극 놀이 활동을 12회 실시하였고, 통제집단 유아들에게는 누리과정활동을 하였다. 본 연구에서 사용한 검사 도구는 유아의 진로인식 검사(임연정, 2011)와 유아용 자아개념검사(이경화, 고진영, 2014)를 사용하였다. 수집된 자료는 SPSS WIN 22.0 프로그램을 사용하여 사전, 사후간 독립표본 t-test를 실시하였다. 연구결과, 직업관련 극 놀이 활동을 실시한 실험집단이 일반누리과정을 실시한 통제집단보다 진로인식과 자아개념에 있어서 더 향상이 나타나 실험이 효과적이었음이 확인되었다. 이러한 연구결과를 통해 유아교육현장에서 유아의 진로인식과 자아개념향상을 돕기 위한 교수학습방법으로 직업관련 극 놀이활동이 활용될 수 있음을 시사한다. The purpose of this research was to identify how job-related dramatic play affect career-awareness and self-concept of young children. For this research 20 children in each experimental group and control group, total 40 children were selected. They were 5-year-old children going to 2 classes of B and Y public kindergarten located in Seoul. 12 times of dramatic play activity were played for children in experimental group and for control group they had Nuri curriculum which has no special treatment. In terms of research tool used in this study, career-awareness test of children (Yim Yun-jeong, 2011) and self-concept test for children (Lee Kyung-hwa & Goh Jin-young, 2014, unpublished) were used. The collected data was analyzed by using SPSS WIN 22.0 program and t-test for pre and post independent samples was implemented. As a result of this research children in experimental group who had gone through job-related dramatic play activity had positive influence on improvement of their career-awareness and self-concept compared to ones in control group who had gone through general Nuri curriculum. This conclusion implies that job-related dramatic play activity can be a meaningful teaching tool for developing children’s career-awareness and self-concept.

라오스의 벼 생산 현황과 문제점

이문희,최경진,이정일,정남진,양원하,김제규 한국국제농업개발학회 2001 韓國國際農業開發學會誌 Vol.13 No.4

Rice is the single most important crop in Lao PDR. In the 2000 rice production year, total rice production in the Laos reached 2.2 million tons. This is regarded as sufficient to provide national self-sufficiency. The rice harvested area in 2000 was approximately 719,500ha and represented 80% of cropped land area. Approximately 82% of production was from wet season cropped and 18% was from the irrigated dry season. Grain yield per unit area vary from 1.68 to 4.39 ton/ha in the wet season environment. However, the highest grain yield (4.39 ton/ha) obtained from the dry season irrigated crop. Higher yields and reduced year variation in production can be expected with the further intensification of production systems in the low land environments. However, further imporvements in production will be dependent on higher levels of inputs and further alleviation of some the production constraints.

식사대용 식품(Ready-to-eat meals) 중 병원성 세균의 분포와 항생제 감수성 양상

홍은경,김윤아,이도경,강병용,하남주,Hong, Eun-Kyung,Kim, Yun-A,Lee, Do-Kyung,Kang, Byung-Yong,Ha, Nam-Joo 한국미생물학회 2006 미생물학회지 Vol.42 No.4

본 연구에서는 2005년 11월부터 2006년 3월 초까지 497개의 초밥, 김밥, 샌드위치 등의 식사대용 식품 검체를 수거하여 식품공전을 토대로 식사대용 식품에서 유래되는 미생물학적 인 오염도를 조사하고, 현대 사회에서 항생제 사용의 오남용으로 항생제 내성이 심각한 상황을고려하여 분리된 균에 대한 항생제 감수성 양상에 대하여 알아보고자 하였다. 수거된 검체를 실험한 결과 김밥에서 4개(1.4%)의 Escherichia coli가 분리되었고, 초밥, 샌드위치 등에서는 분리되지 앓았다. 또한 김밥에서 12개(4.4%), 초밥에서 8개(5.4%), 샌드위치에서 2개(4.3%)로 총22개(4.4%)의 Staphylococcus aureus가 분리되었다. 식사대용 식품에서 분리된 26개의 균주로 National Committee for Clinical Laboratory Standards (NCCLS)의 기준에 의거하여 vancomycin, teicoplanin, gentamycin, cipro-floxacin, synercid, cefotaxime, lincomycin, meropenem, cefazolin, amoxicillin-clavulanic acid으로 총 10개의 항생제를 사용하여 E. coli와 S. aureus의 항생제 감수성 양상을 파악해 보고자 하였다. 실험 결과 식사대용 식품에서 분리된 E. coli 4균주의 항생제 감수성 양상은 그람 음성균 치료에 주로 사용되는 항생제인 gentamycin, ciprofloxacin, cefotaxine, meropenem, cefazolin에 대해서는 감수성이 높다고 판단되었으나 amoxicillin-clavulanic acid에 대해서는 내성을 나타내었고, S. aureus의 항생제 감수성은 비교적 높다고 판단되었다. This study was performed in order to measure the level of food-borne pathogenic bacteria and antibiotic resistance pattern of found ready to eat meals such as Him-bap, Cho-bap, Hamburger, Sandwich and packed lunch boxes. A total of 497 samples were collected from supermarket and department of Seoul, Kyung-ki, Inctleon, Kang-won, Chung-Cheong from November, 2005 to March, 2006. The contaminated microorganisms were in most cases tract relative strain like E. coli and S. aureus. Result have shown E. coli was detected 4 strains and S. aureus was detected 22 strains. 26 strains were also tested the antibiotic resistance pattern. 26 strains were shown to be relatively susceptible to synercid, vancomycin, teicoplanin, ciprofloxacin, gentamycin, lincomycn, cefotaxime, meropenem, cephalosporin, amoxicillin-clavulanic acid by the MIC dilution method, but E. coli 1 strain was resistant to amoxicillin-clavulanic acid.