Overexpression of Zoysia ZjCIGR1 gene confers cold stress resistance to zoysiagrass

Yang‑Ji Kim,Dae‑Hwa Yang,Mi‑Young Park,Hyeon‑Jin Sun,Pill‑Soon Song,Hong‑Gyu Kang,Seok‑Cheol Suh,Yong‑Eok Lee,이효연 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.1

Zoysia japonica Steud. is a warm-season lawn grass popular in Korea and elsewhere. They are cultivated in many places such as river banks, roadside, and play grounds. However, there still is a disadvantage of frequent mowing, and the grass grows poorly under the chilly conditions. To develop a grass variety that circumvents these drawbacks, we cloned the chitininducible gibberellins-responsive1 gene (CIGR1) from zoysiagrass. The full length of the ZjCIGR1 (Zj; Zoysia japonica Steud.) gene was obtained by 5′/3′ RACE PCR and the phylogenetic tree showed that it belonged to the CIGR1-subgroup in the PAT1-group of GRAS protein family. Expression of the ZjCIGR1 in wild-type plants was confirmed in roots, meristems, leaves, and flowers, especially high in the flowers. The transgenic zoysiagrass was confirmed by PCR using gene-specific primers, phosphinothricin-acetyl-transferase (PAT) strip test, and Southern blot analysis. ZjCIGR1-overexpressing plants acquired tolerance to cold stress displaying morphological phenotypes characteristic of stress resistance. In addition, in the transformants, expression of the ZjCIGR1 as well as cold-regulated (COR) gene was increased compared to the wild-type plants under cold stress condition. These results suggest that ZjCIGR1 gene is an important candidate for regulating cold stress resistance.

ZnO 압전박막을 이용한 FET형 압력센서의 특성

양규석,권대혁,남기홍,손병기 경북대학교 센서기술연구소 1994 센서技術學術大會論文集 Vol.5 No.1

A new FET type pressure sensor has been investigated to overcome the problems of the conventional silicon piezoresistive and capacitive pressure sensor. The PSFET( pressure sensitive field effect transistor) is a new FET type pressure sensor which the operation theory is combined with the field effect of MOSFET and the piezoelectric effect of piezoelectric thin films. This sensor can overcome the fabrication problems of conventional silicon pressure sensors and realize productivity, standardization, miniaturization, integration because the whole fab. process is compatible to the planar technology. A ZnO thin film as a piezoelectric material, 5000Å thick, was deposited on a FET gate by RF magnetron sputtering and the optimum deposition condition was 300℃ substrate temperature, 5mtorr working pressure, Ar ambient and 140watt RF power, respectively. And the device was annealed at 400℃, O_(2) ambient for 1 hour to obtain a better C-axis poling structure. The fabricated PSFET device showed piezoelectric voltage(40mV/kgf/cd) and sensitivity (21μA/kgf/cm^(2)) according to an applied pressure(1kgf/cm^(2)~4kgf/cm^(2)).

교육과정철학과 교육과정사회학의 대화 가능성의 모색

양영자,황규호 이화여자대학교 교육과학연구소 1999 교육과학연구 Vol.30 No.-

이 논문은 교육내용의 성격에 대해 이제까지 상호 대립적인 관점을 제시해 왔던 교육과정철학과 교육과정사회학의 논의 사이의 대화가능성을, 두 진영의 대표적인 학자라고 할 수 있는 허스트와 영의 최근 논의를 통해 검토해 보기 위한 것이다. 지금까지 두 관점의 관계는 연계성 또는 관련성보다는 상호독립성 또는 불연속성의 특징이 더욱 부각되어 온 경향이 있다.그러나, 이 같은 대립적 특성을 강조하는 것은 교육내용에 대한 이해 방식을 고정시키고 제한하며 교육내용에 대한 새로운 이해 방식을 원천적으로 억제하는 원인으로 작용한다.최근의 영과 허스트는 종래의 폐쇄적인 시각을 정리하고, 각각의 관저메서 상호 연계의 논리를 제안함으로써 교육내용에 대한 총체적인 이해를 도모할 수 있는 길을 열어 보이고 있다. The purpose of this study is to investigate the possibilities of dialogues between philosophical and sociological approaches to curriculum studies. So far, the two approaches and perspectives have been regarded as incommensurable. However, P.H. Hirst and M.F.D. Young have recently shown a possibility of bridging the gap between two perspectives. Those changes provide a new perspective to the interconnect theoretical knowledge and common knowledge as contents of education. The new perspectives throw a light to the possibility of holistic understanding of knowledge as contents of education.

3-Joint Planar Type 로봇 매니퓰레이터의 자기동조적응제어에 관한 연구

김규로,양희주,유용석,최명진,오택열 慶熙大學校 大學院 院友會 1996 高凰論集 Vol.17 No.-

This study has parallelogram trajectory tracking of Three Joint Planar type Robot Manipulator. The equation of motion for the three joint planar manipulator are obtained by substituting Lagrange's energy expression into Euler-Lagrange's equation and forming the appropriate derivative. Lagrangian method allows us to obtain the dynamics equations for very complicated systems in the simplest manner possible. SISO model is used for design of the controller. The design of controllers may be considered primary controller for manipulators to track the desired trajectory under ideal conditions and secondary controller to compensates for undesirable deviations of the motion from the trajectory caused by external and internal disturbances. The aim of this paper is to evaluate the efficiency by self-tunning adaptive control and considering a characteristic of control. Through the computer simulation, obtained the following results 1) selt-tunning adaptive control is superior to PD control, 2) During the learning period, the adaptive control algorithm is searching proper estimates and controller gains. After this period, the outputs of the joints start tracking closely the desired valued.

二面交雜에 依한 고추 開化所要日數의 遺傭分析

金?椿,朴圭煥 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1984 慶北大農學誌 Vol.2 No.-

This study was performed to obtain the basic informations on days to first flower in red pepper. Eight parent varieties and twenty eight F₁ hybrids from 8X8 half diallel cross were used as the materials, and heterosis, combining ability, the degree and direction of dominance, and heritability were evaluated. The 1% significances in day to first flower were observed among parents and F₁s, and the mean of F₁s was not significantly longer than parents. Positive and negative heterosis and heterobeltiosis were observed. Both average heterosis and heterobeltiosis were negative. General combining ability (GCA) and specific combining ability (SCA) variances were highly significant, and GCA variances were greater than SCA variances. Partial dominance was observed in days to first flower and the direction of dominance was negative excluding Chunan and Saegochu varieties. The number of effective gene was estimated as one, and heritabilities in narrow and broad sense were fairly high.

우리나라 中小企業의 電子商去來 障碍要因과 活性化 方案에 관한 硏究

이양우,장정규 한국유통정보학회 2001 유통정보학회지 Vol.4 No.2

Considering the significant importance of small and medium sized industry in the national economy and its potential value from the sense of one community by nature, the role of uprising small and medium companies in the new markets based on electronic commerce has become one of the biggest political issues in every country nowadays. Small companies can take more benefits from information technology and electronic commerce than the larger ones. The size of a company really does not concern any longer, in the internet business, as far as small-sized companies explore regional expansions and develop new customers as the larger companies used to do before, and thereby they can equally compete with the larger companies. To enhance the electronic commerce trade, fundamental and systematic solution for such impaction factors, as information security, electronic settlement, standardization, intellectual property, as well as technical disadvantage, should be taken into consideration. This thesis is composed of five chapters as follows : Chapter 1 was introduction this thesis. Chapter 2 provided a basic research and theoretical inquiry into electronic commerce. Chapter 3 offered an inquiry into the present situation and trend of electronic commerce in Korea(in international movement) classified by general and small & medium enterprises. Chapter 4 identified the barriers of electronic commerce small & medium enterprises. And suggested to overcome those barriers and to enlarge Korean electronic commerce small & medium enterprises. Chapter 5 presented the concluding remarks. Electronic Commerce cannot replace the whole future logistic environment, but has been widely adopted as a new axis in logistics. So, broad study especially on the development of logistic information system and electronic commerce standard model for small & medium companies and DB marketing should be additionally conducted, in line with the study on its influence on political and economic dimensions. Small & medium enterprises can easily adopt themselves to the rapidly changing technological environment with continuous innovation. This means that the small & medium enterprises are an enterprise from which is most suitable for the knowledge and information society in 21C.

專門大學 電子通信 技術人力을 위한 産學協同敎育方案 硏究

金圭煥,高南泳,梁義藏 군산대학교 1987 群山水産專門大學 硏究報告 Vol.21 No.1

In modern industry, the reorganizations of organization and job classification of telecommunication are required for the Advanced Information Society (AIS) which is being accomplished by the entrance of new media, Information Service Noetwork plan for Korean government offices (ISN) and Integrated Services Digital Network (ISDN). Accordingly, the demand of competent technician would be increased for performance of the related job. In this paper, educational system of College-Industry-Korea Vocational Training and Management Agency Cooperation for the telecommunication department was studied for the effective education of the specified technician to be engaged in the specified job. The results were as follows. 1. By the establishment of College-Industry-Korean Voctional Training and Management Agency and their linking operation, the gap in their technical level could be narrowed. In addition, the effective improvement for the field practice, the official approval system, the normalization of the special education and the settlement of its related cooperation business with administrative agencies could be advanced promptly. 2. The industry should take the advancement of its technical level by establishing of employ job for the professional course technician of junior college graduates and by hiring of the 2nd class licensed technician for the related job. 3. Telecommunication department should carried out not only the efficient operation of curriculum (Table 13.) and development of teaching materials fur special technical education according to each course , but also the substantiality of field practice. 4. Korea Vocational Training and Management Agency is desired to develope the problems of examination approached to practical technique level of industry and to improve the applicant qualification, examination date and method of practical examination for normalization of technical education in junior college telecommunication department.

붓다의 神格化와 反神格化 : 그의 수명과 수명 연장 능력에 관한 異見을 중심으로

안양규 서울대학교 종교문제연구소 2000 종교와 문화 Vol.0 No.6

道德的 危態에 대한 經濟的 對應 方案

高良坤,崔錫奎 全北大學校 1996 論文集 Vol.42 No.-

The efficiency of a competitive market equilibrium depends on all of the decentralized decision-makers having full information. The market mechanism itself plays an informational role by conveying information in the form of relative prices to decision-makers about the relative costs and benefits of different actions. It is obvious that perfect insurance and financial markets of the type required for pareto optimality do not exist on practice. It is useful to consider the reasons why insurance and financial markets may fail to exist and why those that do exist may not exploit all of the mutual benefits to risk-sharing. Two types of informational externalities impede the functioning of insurance and financial markets, generally referred to as adverse selection and moral hazard. One way to distinguish between adverse selection and moral hazard is to remember that adverse selection in a problem of asymmetric information before entering into a transaction, whereas moral hazard is a problem of asymmetric information after the transaction has occurred. The problems created by adverse selection and moral hazard are an important impediment to well functioning insurance and financial markets, so market failure occurs because of those problems. Hence the purpose of this paper is to examine and analysis the problems of adverse selection and moral hazard, and then to seek the economically corresponding schemes of asymmetric information from adverse selection and moral hazard. For this purpose, this paper consists of four major sections Chapter Ⅰ involves the necessity, the purpose of this study. Chapter Ⅱ. explains the nature of risk, peril and hazard. In chapter Ⅲ. this paper will analysis the market failure from the asymmetric information of adverse selection and moral hazard. Also it explains the theoretical models of moral hazard. Finally chapter Ⅳ offers the economically corresponding schemes of the problems from adverse selection and moral hazard, and the conclusion. That is, there are some solutions such as lump-sum tax-financed subsidies on locks·burglar and smoke alarms, private production and sale of information, government regulation, financial intermediation, collateral and net worth, monitoring and enforcement of restrictive covenants etc.

붓다의 입멸 자세, 장소, 그리고 최후의 가르침

안양규 서울대학교 종교문제연구소 2002 종교와 문화 Vol.0 No.8