• Natural Product Sciences
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• 제27권2호
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• pp.61-67
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• 2021

Since ancient times, various herbal medicines have been used in folk medicine to treat a variety of diseases. While the majority of drugs belong to the Kingdom of Plantae, some drugs from the Kingdom of Animalia are listed in various Materia medica of alternative medicines. Animal-derived drugs are mentioned in the Unani system of Medicine (USM) and have been used successfully to treat a variety of diseases. Marjān (Corallium rubrum) is a vital marine drug of animal origin that has been used in USM since ancient times and continues to be used today. It possesses a variety of beneficial pharmacological properties, including tonic effects on the heart, brain, stomach, and eyes, pregnancy protection, expectorant, and hemostyptic properties. It is used to treat hemoptysis, palpitation, bleeding piles, hemiplegia, heart failure, and general weakness. It is also an ingredient in a variety of Unani formulations with pharmacological significance. Unani physicians expanded the uses of Marjan and successfully used it to treat a variety of new diseases. There is a dearth of scientific research on its pharmacological and medicinal properties. The urgent need is to validate the Unani claims about its beneficial cardiac and nervine actions, as well as other significant actions mentioned in the Unani literature.

• 전기학회논문지
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• 제62권6호
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• pp.744-749
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• 2013

The protection switching technology is widely adopted in the fiber-optical transmission equipments based on TDM(Time Division Multiplexing), such as PDH, SDH/SONET. A variety of protection switching algorithms for Ethernet networks and the progress of standardization are summarized in the document. There are several kinds of protection switching algorithms for Ethernet networks, such as STP, RSTP, MSTP and etc. However, since Ethernet signal move through detour route, it causes much time to recover. Accordingly, it is difficult to secure a usability of Ethernet networks and QOS(Quality of Service). Also, if the protection switching protocol standardized by IEEE and ITU-T is used, it remains a inherent network switching time for protection. Therefore, a specific protection switching algorithm for Ethernet are needed for seamless and stable operation of Ethernet networks service for Distribution Automation System(DAS). A reliable protection algorithm with no switching delay time is very important to implement Self-healing service for DAS. This study of FPGA based protection switching algorithm for Ethernet networks shows that in case of faults occurrence on distribution power network, immediate fault isolation and restoration are conducted through interaction with distribution equipments using P2P(Peer to Peer) communication for protection coordination. It is concluded that FPGA based protection switching algorithm for Ethernet networks available 0ms switching time is crucial technology to secure reliability of DAS.

• Molecules and Cells
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• 제19권3호
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• pp.428-435
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• 2005

This study was carried out to assess the potential of SSR markers for variety identification by comparing SSR markers and morphological traits in tests of distinctiveness, uniformity, and stability (DUS) of pepper (Capsicum annuum L.) varieties. Twenty-seven SSR markers were polymorphic in 66 pepper varieties, revealing a total of 89 alleles. Average polymorphism information content (PIC) value was 0.529, ranging from 0.03 to 0.877. Cluster analysis of the band patterns separated the varieties into three groups corresponding to varietal types. Morphological trait-based clustering showed some degree of similarity to dendrogram topologies based on the SSR index. However, no significance correlation was found between the SSR and morphological data. SSR markers could be used to complement a DUS test of a candidate variety and to select complimentary varieties by pre-screening existing varieties in the context of protecting new varieties of pepper.

• 대한임베디드공학회논문지
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• 제11권6호
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• pp.335-341
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• 2016

As information technology advances rapidly, various smart devices are becoming an essential element in our lives. Smart devices are providing services to users through applications up on the operating system. Operating systems have a variety of rules, such as scheduling applications and controlling hardwares. Among those rules, it is significant to protect private information in the information-oriented society. Therefore, isolation task, that makes certain memory space separated for each application, should highly be guaranteed. However, modern operating system offers the function to access the memory space from other applications for the sake of debugging. If this ability is misused, private information can be leaked or modified. Even though the access authority to memory is strictly managed, there exist cases found exploited. In this paper, we analyze the problems of the function provided in the Android environment that is the most popular and opened operating system. Also, we discuss how to avoid such kind of problems and verify with experiments.

• 한국통신학회논문지
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• 제42권1호
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• pp.88-97
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• 2017

With the increasing of the penetration rate of large-scale wind farms, a reliable, highly available and cost-effective communication network is needed. As the failure of a WF communication network will significantly impact the control and real-time monitoring of wind turbines, network reliability should be considered into the WF design process. This paper analyzes the network reliability of different WF configurations for the Southwest Offshore project that is located in Korea. The WF consists of 20 WTs with a total capacity of 60 MW. In this paper, the performance is compared according to a variety of indices such as network unavailability, mean downtime and network cost. To increase the network reliability, partial protection and full protection were investigated as strategies that can overcome the impact of a single point of failure. Furthermore, the reliability performances of different network architectures are analyzed, evaluated and compared.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.433-444
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• 2008

Nowadays, subway station has provided not only transportation but living spaces for everyday activities. Therefore, a variety of facilities have been installed for a safety of citizens such as fire-fighting equipment, platform screen doors and giving high level of benefits such as air-conditioning and heating equipment, escalators, lighting apparatus. In order to operate these facilities appropriately, it is needless to say that electric power supply must be reliable. Many protection relays have been installed to protect electric apparatus and power system, nevertheless it..s study has been insufficient in the concrete. From this paper, through analyzing of protection relay system of electric room operated in line 2 of Seoul metro, we can help to improve stable power supply system of subway station.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 C
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• pp.905-907
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• 1998

The setting of protective relays, which is critical to the system security, requires a huge volume of data and a lot of repetitive calculations. Since an effective design of a database is essential. The relay setting database must accommodate a variety of protective devices. Also its information can be viewed and updated with easy by humans and by computer programs. This paper describes several existing database designs for power system protection, their advantages and disadvantages. Also this paper develops an effective database for power system protection with their advantages.

• 한국작물학회지
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• 제44권2호
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• pp.112-116
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• 1999

Genetic diversity of 31 rice varieties including 25 japonica and 6 indica varieties was evaluated using a combination of 19 microsatellite or simple sequence repeats (SSRs) and 28 random decamer oligonucle-otide primers. All 19 microsatellite primer sets representing 19 loci in the rice genome showed polymorphisms among the 31 varieties and revealed 91 alleles with an average of 4.80 bands per primer. Also all 28 random decamer primers used were informative and generated 114 non-redundant bands with a mean of 4.07 bands. Microsatellite markers detected higher number of alleles than random primers .although the mean difference was not statistically significant. A cluster analysis based on Nei＇s genetic distances calculated from the 205 bands resolved the 31 varieties into two major groups that correspond to indica and japonica subspecies, which is consistent with the genealogical information. As few as six random decamer primers or a combination of one microsatellite and four random decamer primers were sufficient to uniquely differentiate all 31 varieties. These combinations would be potentially useful in rice variety protection and identification considering that 25 out of 31 varieties used in this study are japonica rices with high grain quality and have close make up.

• 한국조경학회지
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• 제47권5호
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• pp.49-65
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• 2019

본 연구는 국제 식물 신품종 보호제도가 실시된 이후 나라꽃 무궁화의 국내외 개발 동향을 조사 분석하고, 향후 나라꽃 무궁화를 국내 보급 확대뿐만 아니라, 해외수출을 촉진시키고, 활용범위를 넓히기 위한 기초 자료로 이용하고자 하였다. 국내에서 개발된 무궁화 품종 중 2004년부터 2018년까지 국립종자원에서 품종보호권 번호를 획득한 품종은 총 97개였다. 국내 육성 품종 중 꽃이 특이한 품종들은 정원 내 초점식재용으로 활용이 가능하였으며, 수세가 강하고 키가 큰 교목성 품종들은 가로수 및 초점식재용으로, 가지의 배열이 조밀하고 키가 작은 왜성형은 분화 및 분재용으로 이용되었다. 국내 품종보호권을 획득한 품종들은 대부분 홑꽃이었으며, 반겹꽃 품종은 2개, 겹꽃 품종은 전혀 없었다. 꽃색의 경우, 꽃잎이 분홍으로 단심이 있는 품종이 57개로 가장 많았으며, 흰색 꽃잎에 단심이 있는 품종이 21개로 많았다. 국내 품종보호권을 획득한 품종 중 교잡육종법으로 개발된 품종이 61개로 가장 많았으며, 다음으로 종간 교배육종을 통해 육성된 품종이 23개, 방사선 처리와 돌연변이 육종으로 개발된 품종이 7개였다. 미국 특허청(USPTO)에 출원한 무궁화 품종은 미국, 영국, 네델란드에서 각각 7개로 가장 많았으며, 다음은 한국에서 4개 품종, 벨기에에서 3개 품종이 등록되어 총 34 품종이었다. 유럽공동체 식물품종사무국(CPVO)에 등록한 무궁화 품종은 프랑스에서 육성된 품종이 16개 품종으로 가장 많았으며, 다음은 네델란드에서 9개 품종, 영국에서 5개 품종, 벨기에에서 1개 품종으로 총 32 품종이었다. 미국과 캐나다에서 동시에 식물 특허 및 식물 육성자 권리를 받은 품종은 'America Irene Scott', 'Antong Two', 'CARPA', 'DVPazurri', 'Gandini Santiago', 'Gandini van Aart', 'ILVO347', 'ILVOPS', 'JWNWOOD 4', 'Notwood3', 'RWOODS5', 'SHIMCR1', 'SHIMRR38', 'SHIMRV24', 'THEISSHSSTL' 등 15 품종이었다. 국내 품종보호권과 해외 식물 특허를 동시에 취득한 품종으로 'SHIMCR1'과 'SHIMRV24'이 있었다. 미국 식물 특허와 유럽 신품종보호권을 동시에 받은 무궁화 품종은 총 14 품종이었다. 미국 식물 특허권을 획득한 무궁화 품종 중 겹꽃 품종이 18개(52.9%), 반겹꽃이 4개(11.8%), 홑꽃 품종이 12개(35.3%)로 나타나 겹꽃 품종이 많았으며, 유럽 품종보호권을 획득한 무궁화 품종에서도 겹꽃 품종이 11개(34.3%), 반겹꽃이 7개(21.9%), 홑꽃 품종이 14개(43.8%)로 나타나 미국과 같은 결과를 보였다. 향후 나라꽃 무궁화의 품종은 국내 보급 확대 및 해외 수출을 위해서는 꽃의 종류가 홑꽃에서 겹꽃 품종의 개발이 요구되어지며, 꽃색 또한 적색, 청색 등 다양해야 할 것이다. 또한 무궁화 품종의 신품종 개발 시 미국 및 유럽품종처럼 화단 지피용 및 가장 자리식재용으로 이용하기 위해 키가 작고 가지가 아래로 향하는 품종 개발이 요구되어야 할 것이다. 또한 키가 작고 마디의 길이가 짧으며 분지각도가 좁은 품종을 개발하여 분화용 및 분재용으로 개발하여 실내에서도 무궁화를 감상할 수 있도록 해야 할 것이다.

• 화훼연구
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• 제18권4호
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• pp.303-307
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• 2010

A new spray chrysanthemum cultivar 'Snow Bowl' was released by National Institute of Horticultural & Herbal Science(NIHHS), Rural Development Administration (RDA), in 2008. The cross was made in 2005 between '03B1-230', breeding lines of NIHHS and 'Sei-Alps'. Trials were conducted from 2006 to 2008 for the evaluation and selection of this cultivar, including shading cultures in summer and retarding cultures in spring. The natural flowering time of 'Snow Bowl' is late October, but year-round flowering is possible by photo-periodic control. It has single type flowers with white petals. The growth of plant is very vigorous and it is resistant to white rust. The diameter of flower is 6.3cm. Number of flowers per stem and petals per flower are 12 and 31, respectively. Days to flowering under the short day treatment is about 59 and its vase life is 24.1 days in autumn season. 'Snow Bowl' was applied as No. 2009-179 on February 18, 2009 for variety protection and the plant variety protection rights have been registered as No. 3239 on August 3, 2010 at the Korea Seed and Variety Service.