• 제목/요약/키워드: Introduction of new technology

검색결과 695건 처리시간 0.034초

Map based cloning of resistance to bacterial leaf blight gene using QTL analysis in rice

  • Du, Xiao-Xuan;Kim, Kyung-Min
    • 한국작물학회:학술대회논문집
    • /
    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
    • /
    • pp.138-138
    • /
    • 2017
  • Agriculture is the most primitive civilized Activities of mankind but also the propellant of civilization development. Because it is the most basic material goods source of mankind. Among these materials rice is one of the most important part of these, we call them the substance of survival. From the beginning of the agricultural activities to the present we have experienced three industrial revolutions and are experiencing the Fourth Industrial Revolution. With the development of science and technology makes the efficiency of agricultural production is higher and higher, but compared with the original we are facing the same problem: natural disasters; pests and diseases; now also face the depletion of resources, environmental degradation and other issues. Therefore, improve and cultivate new crop varieties to make it better resistance and more production for better develop modern agriculture. It's very helpful for human social development. And also it is the responsibility and task of modern molecular breeding. In this study, I used bacterial leaf blight to find a better resistance gene to improve the resistance of rice. Frist Cultivate k3 of bacterial leaf blight, than inoculation by leaf clipping method (Kauffman,1973) in CNDH and SNDH population at 40days after rice transplanting. Check the lesion length by inoculation plants at 14days after inoculation, and record data for QTL analysis program. Than I get 4 intervals in 3 different chromosomal regions. I found these defense genes in the 4 intervals. So I used NCBI Justbio, Rapdb, etc. to finding these genes in physical map, than design primer for map base cloning. At last these defense genes will be employed in further research for introduction of the gene to the parental plant and rice breeding for solving food crisis.

  • PDF

독어음의 음성학적 고찰(2) - 현대독어의 복모음에 관하여 - (A Phonetic Study og German (2))

  • 윤종선
    • 대한음성학회지:말소리
    • /
    • 제19_20호
    • /
    • pp.33-42
    • /
    • 1990
  • Those who are interested in the German diphthongs wil1 find that they are classified into three kinds of forms in accordance with their gliding directions: closing, centring and rising. The German [aI], for example, which derives its origin from [i:] of the riddle high German. Is regarded as a distinctive feature that distinguishes the new high German from the middle high German. The diphthong [aI] is cal led fall ing one, because the sonority of the sound undergoes a diminution as the articulation proceeds. The end part of the diphthong [aI] is less sonorous than the beginning part. In most of the German diphthongs the diminution of prominence is caused by the fact that the end part is inherently less sonorous than the beginning. This applies to the other c los Ing and centring diphthongs. This way of diminution of sonority exerts influence on methods of constructing systems of phonetic notation. The above mentioned less sonorous end part of diphthong [I] shows that it differs from some analogous sound in another context. It is useful to demonstrate the occurrence of particular allophones by introducing special symbols to denote them (here: at→ae). Forms of transcription embodying extra symbol s are cal led narrow. But since strict adherence to the principle 'one sound one symbol' would involve the introduction of a large number of symbols, this would render phonetic transcriptions cumbrous and difficult to read. A broad style of transcription provides 'one symbol for each phoneme' of the language that is transcribed. Phonemic transcriptions are simple and unambiguous to everyone who knows the principles governing the use of allophones in the language transcribed. Among those German ways of transcriptions of diphthongs ( a?, a?, ??: ae, ao, ?ø; ae, ao, ?ø) the phonemic (broad) transcription is general Iy to be recommended, for Instance, in teaching the pronunciation of a foreign language, since it combines accuracy with the greatest measure of simplicity (Some passages and terms from Daniel Jones) .

  • PDF

농협의 모바일 뱅킹 서비스 사례 (A Case Study on the Usage of Mobile Banking Service)

  • 김병곤
    • Journal of Information Technology Applications and Management
    • /
    • 제17권2호
    • /
    • pp.207-223
    • /
    • 2010
  • Mobile banking is a subset of electronic banking which underlies not only the determinants of the banking business but also the special conditions of mobile commerce. Nowadays wireless networks are being evolved and diversified. In this situation The wireless e-commerce is in the limelight on new profits of Carriers. Especially from current year when Carriers in domestic plans to provide the services using 2.5G networks the service providers choose wireless e-commerce as the main parts of wireless internet strategy and will provide a various of services. Because of this situation, the importance of mobile billing service is being emphasized. This paper searches the definition and service types of mobile banking, and suggests status and prospects of domestic mobile banking. We suggest the basic direction, the stage of development and functions of services by analyzing the cases of Nonghyup's. Finally we derive the critical factors from those and suggest the effect of introduction and the direction of development. From the customer perspective, mobile banking has many strengths. For example, it allows that all customers access banking service at anytime, anywhere more easily than telephone banking or pc banking. And it reduces the time and the effort for using the service. It enables the company to make a business against global customers. On the other hand, from the company perspective, it has a lot of potential that affect market share and reduce the costs of human and material resources which used to operate and support branches. However, it needs many efforts to reach at the stage of completion. And We will have to solve the problems that develop many contents, expend the range of services and raise the service convenience.

  • PDF

Risk factors of African swine fever virus in suspected infected pigs in smallholder farming systems in South-Kivu province, Democratic Republic of Congo

  • Bisimwa, Patrick N.;Dione, Michel;Basengere, Bisimwa;Mushagalusa, Ciza Arsene;Steinaa, Lucilla;Ongus, Juliette
    • Journal of Veterinary Science
    • /
    • 제22권3호
    • /
    • pp.35.1-35.13
    • /
    • 2021
  • Background: African swine fever (ASF) is an infectious viral disease of domestic pigs that presents as a hemorrhagic fever, and for which no effective vaccine is available. The disease has a serious negative social and economic impact on pig keepers. There is limited information on the potential risk factors responsible for the spread of ASF in South Kivu. Objective: The aim of this study was to determine the potential risk factors associated with ASF infection in suspected ASF virus (ASFV)-infected pigs. Methods: We sampled whole blood from 391 pigs. Additionally, 300 pig farmers were interviewed using a structured questionnaire. Viral DNA was detected by using the real-time polymerase chain reaction technique. Results: The majority of pigs sampled, 78% (95% confidence interval [CI], 74.4-82.6), were of local breeds. Over half, 60.4% (95% CI, 55.5-65.2), were female, and most of them, 90.5% (95% CI, 87.6-93.4), were adult pigs (> 1 year old). Viral DNA was detected in 72 of the 391 sampled pigs, indicating an overall infection rate of 18.4% (95% CI, 14.5-22.4). Multivariable logistic regression analysis revealed several risk factors positively associated with ASFV infection: feeding with swill in pen (odds ratio [OR], 3.8; 95% CI, 2.12-6.77); mixed ages of pigs in the same pen (OR, 3.3; 95% CI, 1.99-5.57); introduction of new animals to the farm (OR, 5.4; 95% CI, 1.91-15.28). The risk factors that were negatively (protective) correlated with ASFV positivity were the presence of male animals and the use of an in-pen breeding system. Conclusion: Local pig farmers should be encouraged to adopt proper husbandry and feeding practices in order to increase the number of ASF-free farms.

MnO2와와 금속담지활성탄의 물리적 혼합물을 이용한 NO의 저온 선택적 촉매 환원 반응 (Low-Temperature SCR of NO over Physical Mixture of MnO2 and Metal-Loaded Activated Carbon)

  • 최종철;조철훈;정광은;전종기;임진형;박영권
    • 공업화학
    • /
    • 제19권1호
    • /
    • pp.92-97
    • /
    • 2008
  • $MnO_2$와 K 또는 Cu 담지 활성탄으로 이루어진 혼성촉매상에서 암모니아를 환원제로 사용한 NO의 저온 선택적 촉매 환원반응을 수행하였다. 반응물에 산소를 투입한 경우 NO의 제거율은 증가하였으며, 활성탄에 전이금속을 담지할 경우 탈질 효율이 증가한다. 수분이 존재하지 않는 경우 $MnO_2$와 K 담지 활성탄으로 이루어진 혼성촉매가 $120^{\circ}C$의 저온에서 가장 높은 탈질 효율을 보였으나, 수분이 존재할 경우 모든 촉매의 활성은 현저하게 떨어졌다. 수분 존재 시 $MnO_2$와 질산처리/열처리를 한 Cu 담지 활성탄을 물리적으로 1 : 1 (w/w) 비율로 혼합한 촉매가 $MnO_2$와 Cu 담지 활성탄을 단독으로 사용한 것에 비해 탈질효율이 더 우수하였다.

국제물류관리와 전자적물류정보의 경쟁요인에 관한 실증연구 (An Empirical Study on the Competition Factor Electronic Logistics Information and International Logistics Management)

  • 곽현
    • 통상정보연구
    • /
    • 제9권2호
    • /
    • pp.257-283
    • /
    • 2007
  • As Global industrial structure is diversified, multinational corporations accomplished fast internationalization to introduction of new management policy by development of an IT technology. Enterprise' business environment is changing transcending border. To overcome raging waves of change accident and to be secured enterprise's future, the logistics is recognized the third profit source joining in curtailment of sale enlargement, production cost. To seek cost saving or reform in logistics class that is last area of pursuit of profits within ancient city life in the fast lane from these viewpoint, importance of study that integrates and manages international logistics bases supply neck walk is emphasized. Specially, to meet on in terms of competitive power security regarding curtailment of logistics cost is available through link between logistics bases, various consumer's request, merchandise and service logistics management that supply fixed quantity as is reliable in right place at good season was embossed by point game plan of business management, and SCM efficiency anger of mortification international logistics activity importance of study that see at that dominate competitive advantage point bring. This study analyzes interrelation and presents model for integration of international logistics bases supply network with supply network habit at factor and supply chain, and supply network activity in integration of supply chain process and production. Also, it establishes following method of study to achieve study purpose for actual proof analysis for integration sequence of international logistics bases supply network. Specially, immersion of network and supply network, very high interrelation appeared by thing which is with international logistics base supply network integration. The integration of international logistics base supply network means that the enterprises which give trust and sincerity deal with market environment change positively and can decide proceeding of various cooperative work. Also, it means the possibility by necessity of cooperative relation and interdependence to continuous immersion and normative immersion, for the maintain of long business relations.

  • PDF

Safety Assessment of Foods Produced Using Recombinant DNA Techniques

  • Toyoda, Masatake
    • Toxicological Research
    • /
    • 제17권
    • /
    • pp.167-171
    • /
    • 2001
  • The introduction of genetically modified crops has raised concerns regarding safety issues over the insertion of foreign genes into plant genomes using recombinant DNA technology. Since 1991 in Japan, 29 foods and 6 food additives have been evaluated, based on the "Guideline for Safety Assessment", before these foods were marketed. The MHW, however, decided that safety assessment of such foods and food additives should be legally imposed. because soon such foods and food additives are expected to circulate globally and a new system for assessing safety of such foods and food additives at a pre-market stage is necessary, in order to avoid the distribution of any genetically modified foods that have had no safety assessment. The MHW published relevant announcements to amend existing regulations on 1 May 2000. "Standards for safety assessment of seed plant" is established based on a concept of substantial equivalence, and applicable to the products which are regarded as equivalent to the existing products used as foods and food additives. The characterization of the food products entails consideration of the molecular characterization. phenotypic and compositional characteristics, key nutrients and toxicants, and toxicity and allergenicity of the introduced proteins, and if there are indications of unintended effects of the modification, whether further safety testing (animal studies etc.) is needed should be considered. Safety and wholesomeness studies with whole foods should be care fully designed in order to avoid nutritional imbalances causing artifacts and uninterpretable results as was the case of Dr. Pusztaiis report. A case study of genetically modified soybeans (glyphosate-tolerant soybeans) on the immune system of rats and mice is shown. Chemical compositions were also compared with those of the non-GM soybeans. The studies failed to detect any differences in immuno-toxic activity.muno-toxic activity.

  • PDF

Frank Stella 작품 영역의 발전과정 - 회화에서 부조, 환경조형물 표현에 이르기까지 - (The Impact of Frank Stella's Work on Landscape Architecture)

  • 이상만;이진희
    • 한국조경학회지
    • /
    • 제30권6호
    • /
    • pp.98-108
    • /
    • 2003
  • The research purpose of this study, together with the study of Frank Stella's work and his expansion of the formative arts field, is to rediscover "Amabel" and to present a fresh perspective in evaluating and assessing environmental art objects. The results of this study can be summarized as follows. 1. The study investigated the effect how Frank Stella's work affected American modem art trends. 2. The study helped to re-evaluate Stella's work by examining its expansion into the plastic arts. 3. The study analysed the plastic works of Prank Stella and his effect on plastic arts within the modem art trend of America. In conclusion, Frank Stella played a leading role in today's American art style and had a potent influence on the trends of America's modem U. In recent years, his work has had an impacted on the design of parks and art galleries. America's industrial society is led by the growth of economic power and the development of science and technology. In America's architecture and landscape architecture, such new forms as minimalism functionalism, cubism and abstract expressionism, which have been influenced by art movements, emerged in California and the east coast. Influences of Stella such as these are the remedy for a vested stubborn concept of architecture and landscape architecture by introducing a sense of pictorial space in these fields. In landscape architecture, the introduction of art trends appears in several ways. Mainly the trend of Minimalist Art, influenced by Modernism, can be seen in much Landscape Architecture. Frank Stella contributed to the development of such minimalist art.

전통 소재 음료의 개발 동향 및 바람직한 개발방향 (The Movement and Desirable Direction of Developing Beverages using Traditional Ingredients)

  • 조운호
    • 한국식품저장유통학회:학술대회논문집
    • /
    • 한국식품저장유통학회 2002년도 창립 10주년 기념 국제학술심포지움
    • /
    • pp.99-108
    • /
    • 2002
  • Since the introduction of carbonated drinks in the 1950s, 'cola' and 'cider'along with orange juice, the dominator of the juice market, have been two main streams of the Korean beverage market. This market pattern has caused the following effects; a. Economical loss due to the import of foreign brands - royalty payments to x company. b. Loss of opportunity to develop a domestic beverage market. c. Inflow of an unfiltered foreign culture. This study shows a change in the Korean beverage market. In the 1980s. consumers' tastes started to change as a trend of developing beverages using traditional Korean ingredients started to begin. On the basis of this change, I would like to discuss the desirable path in developing beverages using traditional ingredients. 'Traditional ingredients'refers to the ingredients that the Korean people have enjoyed within the course of their life, whether it be via food or beverage. These ingredients have been chosen by our people as first rate for centuries. How to modernize and develop these work-in-progress products is the desirable direction for the development of drinks using traditional Korean ingredients. This study also shows various examples of how Korean traditional ingredients and the Western scientific civilization can fuse together to develop a modern and value-added product. One project in particular, created a method of producing a beverage using rice a simple traditional ingredient, marking it a hit product. Through this example, I present the desirable direction of how to develop a modernized drink using traditional ingredients that can change both the consumers' current value on the Korean beverage market as well as create a new pattern of consumer tastes.

  • PDF

프로그래밍 기반 수업이 과학교사의 TPACK에 대한 인식에 미치는 영향 (The Effects of Programming-Based Lessons on Science Teachers' Perceptions Related to TPACK)

  • 최은선;이영준;백성혜
    • 한국과학교육학회지
    • /
    • 제37권4호
    • /
    • pp.693-703
    • /
    • 2017
  • 이 연구에서는 교육대학원에 재학하는 37명의 초등, 중등, 고등학교 과학교사들을 대상으로 기존의 과학수업에서 가르치기 어려운 단원과 기존의 교수법에 대해 조사한 후에, 스크래치를 이용한 새로운 교수 자료를 제작하는 활동을 체험하도록 하고, 이러한 과정을 통해 새로운 수업전문성인 TPACK의 발달을 확인하고자 하였다. 설문을 통해 초등, 중등, 고등학교 과학교사들이 공통적으로 가르치기 어려운 단원으로 선정된 태양계의 행성운동 내용을 중심으로 스크래치를 활용한 천동설과 지동설 행성 운행 모델을 구현하는 경험을 하도록 하였다. 그 후 설문조사와 수업 발표를 토대로 테크놀로지의 수업도입에 대한 인식 변화 및 TPACK의 발달을 분석하였다. 연구 결과, 대부분의 교사들의 TK, TCK, TPK 등에 대한 인식의 변화를 보였으며, 프로그래밍을 활용한 교수 자료 제작이 교사들의 내용에 대한 이해를 높여주고, 학생들에게 관찰 현상에 맞는 모델 구성 능력을 길러주며, 정의적 영역에서도 긍정적인 교육효과가 있을 것이라고 생각하였다.