• 제목/요약/키워드: Forestry education

검색결과 168건 처리시간 0.029초

Landscape pattern analysis from IKONOS image data by wavelet and semivariogram method

  • Danfeng, Sun;Hong, Li
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.1209-1211
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    • 2003
  • The wavelet and semivariogram analysis method are used to identify the city landscape and farmland landscape pattern on the 1m resolution IKONOS images. The results prove that wavelet method is a potential way for landscape pattern analysis. Compared to semivariogram analysis, Wavelet analysis can not only detect the overall spatial pattern, but also find multi-scale and direction structures. In this experiment, the wavelet analysis results indicate: (1) the city landscape image is mainly composed of three level structures whose spatial pattern characters appear at 2m, 16m, 128m and 256m accordingly; (2) the farmland landscape is mainly two scale spatial patterns appearing at the 2m, 128m and 256m. IKONOS Remote sensing, with the high spatial and spectral information, is a powerful tool that can use in many ecological systems research and sustainable management.

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A Taxonomic Review of the Genus Athalia (Hymenoptera: Tenthredinidae: Athaliinae) from South Korea

  • Park, Bia;Choi, Jin-Kyung;Wei, Meicai;Lee, Jong-Wook
    • Animal Systematics, Evolution and Diversity
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    • 제33권2호
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    • pp.100-111
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    • 2017
  • The species of the genus Athalia Leach from South Korea are reviewed. Six species are listed, one of which is a new record from South Korea (Athalia tanaoserrula Chu and Wang). In South Korean Athalia, we were not able to find any specimens of A. kashmirensis Benson, while many specimens identified as such were a misidentifications of A. tanaoserrula. Therefore, we think that A. kashmirensis should be excluded from the faunal list of South Korea. A key to the species of South Korean Athalia, diagnosis, photographs of the diagnostic characters, distribution and recorded hosts for each species are also provided.

A new yellow Camellia (Theaceae) from central Vietnam

  • DO, Dai Ngoc;LUONG, Dung Van;NGUYEN, Chinh Duy;HOANG, Son Thanh;LE, Huong Thi;HAN, Jeong Eun;PARK, Han-Sol
    • 식물분류학회지
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    • 제49권1호
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    • pp.90-95
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    • 2019
  • Camellia pukhangensis (Theaceae), a new species with yellow flowers from Quy Hop District, Nghe An Province, Vietnam, is described and illustrated. Camellia pukhangensis has nearly sessile leaves with an attenuate to caudate apex, cordate base, hirsute abaxial surface, hirsute adaxial midrib, hirsute petiole, deltate to ovate perules hairy on the outer surface, bright yellow orbicular to obovate petals hairy on the outer surface, androecium pubescent to two-thirds from the base, pubescent ovoid ovary with three (or four) locules and three (or four) pubescent styles free to the base. The morphological data support the provisional placement of C. pukhangensis in Camellia sect. Archecamellia Sealy.

Standards In The Psychological Structure Of The Personality Of Students

  • Liakisheva, Anna;Salamakha, Ihor;Malimon, Liudmyla;Khanykina, Nataliia;Fedorenko, Maryna;Makieshyna, Yuliia
    • International Journal of Computer Science & Network Security
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    • 제21권4호
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    • pp.301-305
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    • 2021
  • Scientific space, one can observe the differentiation of the definition of the terms "value", "value orientations" because it does not yet have a clear standard definition. Many researchers have dealt with this topic, researched, analyzed, observed, and made conclusions. However, there is still a rich scope for research of such phenomena of personal structure as value orientations. Psychologists-researchers who, in their scientific, practical, and theoretical works, dealt with the topic of values and value orientations and came to the general conclusion that values are a structural component of a personality, with the help of which a person achieves a goal, sets this goal, and characterizes position in life. Saw the relationship between values and the basic structures of the personality, including value orientations-considered in values a system of orientation and personality attitudes.

Subcellular Characterization of Porcine Oocytes with Different Glucose-6-phosphate Dehydrogenase Activities

  • Fu, Bo;Ren, Liang;Liu, Di;Ma, Jian-Zhang;An, Tie-Zhu;Yang, Xiu-Qin;Ma, Hong;Zhang, Dong-Jie;Guo, Zhen-Hua;Guo, Yun-Yun;Zhu, Meng;Bai, Jing
    • Asian-Australasian Journal of Animal Sciences
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    • 제28권12호
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    • pp.1703-1712
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    • 2015
  • The in vitro maturation (IVM) efficiency of porcine embryos is still low because of poor oocyte quality. Although brilliant cresyl blue positive (BCB+) oocytes with low glucose-6-phosphate dehydrogenase (G6PDH) activity have shown superior quality than BCB negative (-) oocytes with high G6PDH activity, the use of a BCB staining test before IVM is still controversial. This study aimed to shed more light on the subcellular characteristics of porcine oocytes after selection using BCB staining. We assessed germinal vesicle chromatin configuration, cortical granule (CG) migration, mitochondrial distribution, the levels of acetylated lysine 9 of histone H3 (AcH3K9) and nuclear apoptosis features to investigate the correlation between G6PDH activity and these developmentally related features. A pattern of chromatin surrounding the nucleoli was seen in 53.0% of BCB+ oocytes and 77.6% of BCB+ oocytes showed peripherally distributed CGs. After IVM, 48.7% of BCB+ oocytes had a diffused mitochondrial distribution pattern. However, there were no significant differences in the levels of AcH3K9 in the nuclei of blastocysts derived from BCB+ and BCB- oocytes; at the same time, we observed a similar incidence of apoptosis in the BCB+ and control groups. Although this study indicated that G6PDH activity in porcine oocytes was correlated with several subcellular characteristics such as germinal vesicle chromatin configuration, CG migration and mitochondrial distribution, other features such as AcH3K9 level and nuclear apoptotic features were not associated with G6PDH activity and did not validate the BCB staining test. In using this test for selecting porcine oocytes, subcellular characteristics such as the AcH3K9 level and apoptotic nuclear features should also be considered. Adding histone deacetylase inhibitors or apoptosis inhibitors into the culture medium used might improve the efficiency of IVM of BCB+ oocytes.

잔디유전자원 보전원에서 잔디 초종 및 채집 개체별에 따른 잔디혹응애 피해 (Damage of Zoysiagrass Mite, Aceria zoysiae on Different Species and Individuals of Turfgrass from Korea with Reference to Turfgrass Genetic Resources Conservation Area)

  • 김종주;이채민;정영학;배은지;이광수;추호렬;전병덕;이동운
    • Weed & Turfgrass Science
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    • 제6권2호
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    • pp.136-150
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    • 2017
  • 잔디혹응애(Aceria zoysiae)는 잔디에 중요한 해충의 하나로 특히 한국잔디에 피해가 심하다. 본연구에서는 자생 채집 잔디 유전자원 보존원에서 잔디혹응애 저항성 잔디 개체의 선발을 위하여 잔디혹응애 피해를 조사하였다. 온실에서 295 계통의 자생지 채집 잔디를 대상으로 잔디혹응애 피해율을 조사한 결과, 잔디혹응애 피해는 잔디 종과 채집 계통별로 차이가 있었다. 잔디혹응애 피해가 가장 많은 잔디 초종은 들잔디와 중지였다. 들잔디가 97.6%의 개체들이 잔디혹응애 피해를 받았으며 중지와 갯잔디가 각각 87.7, 81.1%의 개체들이 잔디혹응애 피해를 받았다. 2개체의 왕잔디도 잔디혹응애 피해가 있었지만 일부 개체들은 온실과 야외에서 잔디혹응애 피해가 없었다. 야외에서 잔디혹응애 피해는 5월부터 발생하여 7월이후 급증하였다. 본 조사에서 잔디혹응애의 피해가 없는 잔디계통들은 향후 잔디혹응애 관리에 활용될 수 있을 것이다.

Study on the heat and mass transfer in ultrasonic assisting vacuum membrane distillation

  • Guo, Hao;Peng, Changsheng;Ma, Weifang;Yuan, Hetao;Yang, Ke
    • Membrane and Water Treatment
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    • 제8권3호
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    • pp.293-310
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    • 2017
  • An ultrasonic assisting vacuum membrane distillation (VMD) system was designed to promote the heat and mass transfer in membrane distillation (MD) process. Both the effects of operating conditions and ultrasonic parameters to permeation flux in this process were investigated; the heat and mass transfer mechanism was also being discussed in this paper. The results showed that the performance of VMD process was improved significantly by ultrasonic assisting. The permeation flux was boosted at a certain feed solution temperature, pressure at permeate side and feed solution velocity whether or not to PP and PTFE. The results also indicated that ultrasonic power and frequency also was the key factor affecting the mass and transfer efficiencies. The feed side transfer coefficient ($K_f$), corresponding to ultrasonic power ($K_f=4.406-0.026{\times}P+7.824{\times}10^{-5}{\times}P^2$) and ultrasonic frequency ($K_f=0.941+0.598{\times}f-0.012{\times}f^2+6.283{\times}10^{-5}f^3$), was obtained and employed in the modeling of ultrasonic assisting VMD process. The modeling results showed that the calculated value of $K_f$ aligned with experimental results well. Both variations of temperature polarization coefficient (TPC) and concentration polarization coefficient (CPC) were studied based on the obtained data. The results showed that both TPC and CPC were improved obviously by the ultrasonic parameters.

한국농업전문학교 농촌관광교육에 관한 연구 (A Study on the Rural Tourism Education in the Korea National Agricultural College)

  • 권영휴;서규선
    • 현장농수산연구지
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    • 제6권1호
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    • pp.3-16
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    • 2004
  • The objective of this study was to investigate the necessity of rural tourism education in the Korea National Agricultural College and suggest the educational plan. Recently, the Korean government proposes the rural tourism as an alternative plan for solving the problems of agriculture and rural community that experience difficulty by the opening of agricultural market and the falling price, etc. As result of investigation of cases of OECD nations and the growth rate of tourism market in Korea, it has been determined that the demand of rural tourism was sufficient. The Ministry of Agriculture & Forestry makes a goal of attracting the yearly 150million tourists by 2013 to the rural communities. Rural tourism can be new income source in the rural communities in Korea. It is important to develop the resources in the rural amenity and promote the tourism leader group with it that will be applicable in the field in order that this rural tourism may take its place as main source of income. As a result of research, on the characteristics of the Korea National Agricultural College that the demand of manpower about the rural tourism and the most of students settled down on the rural community after their graduation, it has been determined that the education for rural tourism leaders in the Korea National Agricultural College would authenticate the validity. Also, it suggested the educational plan by the curriculum for the education for the rural tourism leaders, and suggested the necessity of the establishment of the department of rural tourism. The establishment of the department of rural tourism in the Korea National Agricultural College should be investigated and determined carefully through the relations with the other departments and the process of collecting the public opinions within and outside schools, etc.

축산업자 환경교육 프로그램 개발 연구 - 충청남도 홍성군을 중심으로 - (A Study on the Development of Model on Environmental Education Program for Livestock Farmer -Focused on Hongsung-gun, Chungcheungnamdo-)

  • 남영숙;윤순덕
    • 한국환경교육학회지:환경교육
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    • 제20권2호
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    • pp.93-107
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    • 2007
  • Livestock agriculture plays an essential role Hongsung's economy. Unfortunately, if manure is manage properly it can contaminate water and pollute the air. The purposes of this study were to provide awareness of environmental impact and to design educational programs with sustainable agriculture. I used the specific steps of processes. First, collecting informations through survey on environmental awareness of livestock farmers in Hongsung-gun and recognizing the tendencies. Second, analyzing on educational status of livestock farmers. Third, finding objectives of environmental educational programs. At the end of processes, establishing programs which concerning on environmental education. I used two research methods to gather and analyze the data for developing an environmental education program. The first one is a general survey among 50 livestock farmers from Hongseong-gun, Chungcheongnam-do. The second one is the in-depth interviews with specialists in environmental education and government officials from the central government - the Ministry of Agriculture and Forestry - and the local government - Hongsung-gun who are in charge of livestock farming. I found the following results from this research. First, most livestock farmers replied with 'highly likely' to the five items on the recognition of the necessity of environment preservation, whereas only 38.7% answered with 'likely' to the item on the environmental pollution caused by livestock farming. This shows the tendency that they have less recognition of the reality than necessary. Second, most of the contents among 5 areas(knowledge, recognition, function, attitude, and participation) are the knowledge areas. That results are analyzed training materials for livestock farmers made by Hongsung-gun in 2004 and in 2005 by using goal categories suggested in the Tbilisi Resolution. Third, after analyzing the survey and in-depth interviews, I found that the need for education to recognize the environmental pollution, environmental protection and recycling of the livestock waste. We can summarize conclusions from this research. First, we need on educational program improve the livestock farmers' recognition of importance in environmental protection. Second, it is necessary to develop educational program with the viewpoint that livestock waste is not one of the culprits of the environmental pollution, but a recyclable resource. Third, contents of the environmental education program, should include all the educational elements, namely, knowledge, recognition, attitude, function and participation. The education for livestock farmers requires a research on the environmental education program that can be used with crop farmers who can use the resources recycled from the livestock waste from the viewpoint of recycling resources. This research is focused on the collection and analysis of the basic data for developing an environmental education program and the composition of the program. A further research on the implementation and assessment of this program is required.

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1880-1945 년간의 한국 생물교육의 역사 (History of Biology Education in Korea During the Periord of 1880-1945)

  • 김훈수
    • Animal Systematics, Evolution and Diversity
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    • 제10권1호
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    • pp.97-123
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    • 1994
  • 1. 시대 구분을 크게 개항 이후 갑오경장 이전(1876-1894), 갑오경장 내지 한일합방 이전(1894-1910), 일제식민지시대(1910-1945)로 하여, 시대에 따른 교육관련 법령 및 시행령의 변천과 각급 교육기관의 증설 및 학생수의 증가 상태를 보았다. 2. 갑오경장이전에는 뚜렷한 교육관계 법령이 없었다. 을사조약 후인 1906년에 관립한성사범학교교원임시양성과 규칙, 사범학교령, 고등학교령, 보통학교령, 농상공부소관농림학교규칙이, 이어서 고등여학교령(1908), 사립학교령(1908), 실업학교령(1909)이 공포되었다. 1910-1945년간에는 1911년에 조선교육령이 공포된 후 제2차(1922).제3차(1938).제4차(1943) 교육령이 제정되었다. 일제는 보다 휴율적인 식미지 수탈을 위한 "황국신민화교육"을 교육령의 개정으로 가속햇다. 3. 일제는 각종 교육령에 따라 초등교육기관과 실업교육기관은 그런대로 확장해왔었으나, 고등보통교육(중등교육)과 전문.대학 교육기관의 확장을 외면하고, 한국인이 고등교육을 받는 것을 억제하였다. 예컨대 초등교육기관(보통학교$\longrightarrow$소학교$\longrightarrow$국민학교)의 경우 1912년에 330교(한국인 총학생수:42,602명)에서 1941년에 3,118교(공.사립)(한국인 총학생수:약 156만명)로 되었고, 1912-1945년간에 약 230만명의 한국인 졸업생이 나왔다고 추산된다. 초등교원 양성기관(주로 사범학교)에는 변천이 많았는데 1941년까지 한국인 약 10,100명 일본인 약 5.300명의 졸업생을 낸 것을 추산된다. 4. 관립 전문학교의 경우, 1922년에 5교(총학생수:한국인 523명, 일본인 433명). 1941년에 7교(한국인 617명, 일본인 1,327명)였고, 생물학과 가장 관계가 깊은 수원고등농림학교의 한국인 졸업생이 1906-1945년간에 총 847명이었다. 공사립 의학전문학교 및 경성제대 의학부 그리고 경성치의전, 경성약전 등 의약 관계 전문.대학의 1902-1945년간 졸업생수는 총 약 3,580명으로 추산된다. 5. 생물학 관계 교과목에 관해서, 초등학교에서는 이과, 중등 및 사범교육기관에서는 이과 또는 박물, 농업.의학 등의 고등교육기관에서는 식물학.동물학.유전학 기타 생물학과 관계가 깊은 전공 과목이 들어있었다. 6. 생물학 관계 교과용 도서에 관해서는 각 시대의 각급학교의 것을 수집하여 검토하였다. 7. 중등교육기관의 생물학관계 교원 교수의 수급의 관해서, 관공립 중등 학교에서는 거의 대부분 일본에서 교육 받은 일본인을 채요했고, 사립학교에서는 주로 국내에 있던 관사립 전문학교의 한국인 졸업자와 소수의 일본유학자 그리고 일본인을 채용하였다. 한국인 중등교원 중에는 농업전문학교 특히 수원고등농림학교 출신이 많았다. 8. 일정시에 한국내의 관공립 전문학교와 대학의 교수는 거의 모두 일본인이었다. 숭실전문학교와 이화여전에는 일본의 동북제국대학 생물학과 출신자가 있었다. 이 2교수를 제외하고도, 일본의 제국대학 식물학과.동물학과 또는 생물학괄르 나온 4명(중등학교 또는 연구기관 재직), 그리고 제국대 농학과 출신 2명도 중등학교 박물을 담당했다. 이상 각급 학교 졸업생들은 각기 주어진 정도대로 생물학 관련 지식을 수용하고 이용하고 보급하는데 공헌했고, 이것은 8.15 광복후에 이어졌다. 특히 상기 제국대학 출신자 중 5명은 1945년 8.15 광복 후 일찍부터 우리나라의 대학교에서 생물학분야 교육과 연구에 주도적 구실을 다했다.

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