• Title/Summary/Keyword: Domestic technology

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Molecular Characterization of Enterocytozoon bieneusi in Domestic Rabbits (Oryctolagus cuniculus) in Northeastern China

  • Zhang, Xiao-Xuan;Jiang, Jing;Cai, Ya-Nan;Wang, Chun-Feng;Xu, Peng;Yang, Gui-Lian;Zha, Quan
    • Parasites, Hosts and Diseases
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    • v.54 no.1
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    • pp.81-85
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    • 2016
  • A study of 426 rabbits from 3 cities in Jilin province (Changchun City and Jilin City) and Liaoning province (Shenyang City) was conducted between May and June 2015. The overall prevalence of E. bieneusi in rabbits was 0.94% (4/426), with 0% (0/116), 1.72% (3/174), and 0.74% (1/136) in Jilin, Changchun, and Shenyang City, respectively. Only 3 farms (farm 1 and farm 3 in Changchun City, farm 8 in Shenyang City) were PCR-positive for E. bieneusi. Moreover, rabbits of more than 6 months (1.72%) had the highest E. bieneusi prevalence, followed by rabbits of 4-6 months (1.26%), 2-3 months (0.58%), and less than 1 month (0%). Analysis of ITS gene of E. bieneusi suggested that all 4 E. bieneusi isolates were genotype D, and were classified as group 1a. The present results first demonstrated the existence of zoonotic E. bieneusi in domestic rabbits in China. Effective control measures should be implemented to prevent E. bieneusi infection in domestic rabbits, other animals, and humans.

Identification of Sapstain Fungi on Weathered Wooden Surfaces of Buildings at Jangheung and Jeju Island

  • YUN, Jeonghee;SHIN, Hee Chang;HWANG, Won Joung;YOON, Sae-Min;KIM, Yeong-Suk
    • Journal of the Korean Wood Science and Technology
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    • v.49 no.6
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    • pp.591-601
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    • 2021
  • Recently it is trend to increase wood use as carbon neutral materials, there is recognized to need necessarily durability improvement of wooden building. It is very rare to report existing on the identification of isolates causing discoloration in domestic weathered wooden building used for long period. The objective of this study was identification of fungi that cause discoloration on the exteriors of weathered domestic wooden buildings in the southern part of South Korea. Our findings can be helpful to establish protection technology for weather deterioration of domestic wooden buildings. Wood chip samples presumed to be contaminated with sapstain fungi were collected from the surface of wooden members used in wooden buildings at Jangheung, Jeollanam-do (two locations, #13 and #14), and Jeju Island (two locations, #31 and #33). The growth of microorganisms was confirmed by performing culture tests for the collected samples, and fungi were isolated, purified, and identified. The results indicated that the fungal strains isolated from wooden buildings #13 and #14 at Jangheung, Jeollanam-do, were 99.83% and 100% homologous to Aureobasidium melanogenum, respectively. For wooden building #31 at Jeju Island (two locations), the fungal strain isolated was 100% homologous to A. melanogenum, which is the same species isolated from the wooden buildings at Jangheung. The fungal strain isolated from wooden building #33 (Jeju Island) had 99.83% homology with A. pullulans, which is commonly found in wood degraded by weather or ultraviolet rays. Our findings can be utilized as a basis for establishing protection technology in domestic wooden buildings.

A Study on the Application of the RFID Technology in Textile Industry (섬유산업의 RFID기술 적용에 관한 연구)

  • Yang, Hyo-Seok;Kim, Byeong-Chan;Yang, Dae-Yong
    • Journal of the Korea Society of Computer and Information
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    • v.13 no.4
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    • pp.195-204
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    • 2008
  • Textile industry of Domestic has beeb confronted with Free Trade, and Regional Trade Blocks. In addition, textile industry market is changing from the provider market-oriented to consumer-driven market. RFID is the core technology to correspond in the these environmental change. In this study, we reviewed characteristic and present condition of domestic textile industry and newest technology aspect of RFID. Also, we suggested application plan of RFID technology in textile industry through the analyzing RFID application case of domestic and outside the country textile industry. More precisely, it is propsed that tracking, inspecting and logistics management of raw materials or yarn in up-stream, and Development hysteresis and process management of textile fabrics in middle-stream sector, theftproofing or returning clothes and providing information of products in down-stream sector, through RFID Technology.

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Design of Free-space Optical Communication Terminal Considering for Korean Domestic Weather Conditions (국내 기상 조건을 고려한 자유공간 광통신 단말기 설계)

  • Hajun Song;Heesuk Jang;Taehyun Yoon
    • Journal of the Korea Institute of Military Science and Technology
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    • v.27 no.2
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    • pp.238-246
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    • 2024
  • Modern military operations rely heavily on broadband communication and data transmission. Recently, the rising use of intelligent unmanned technology necessitates more frequencies. Free-space optical(FSO) communication can offer high-data-rate communications with high security and no need for licensing. Therefore, the FSO communication holds significant interest and potential in the defense industry. In this paper, we present design of a FSO communication terminal taking Korean domestic weather conditions into account. The domestic atmospheric attenuation is analyzed using several models and two-year meteorological information for a city in Korea, and this analysis is utilized to design the FSO communication terminal. The design results were verified using an FSO communication test bed, and we achieved an Ethernet bandwidth of approximately 1.86 Gbps at a distance of 1.3 km with the optical amplifier output power of the test bed set to about 20 dBm.

The Development Trend Analysis of Autonomous Driving Technology for Unmanned Ground Combat Vehicles (지상무인전투차량 자율주행 기술 동향분석 및 발전방향)

  • Lee, Jin-Ho;Kim, Seok;Lee, Cheon-Soo
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.5
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    • pp.760-767
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    • 2011
  • To strategically select the technology priority based on the understanding of technology development trends and prospects is very important. To provide such guidance for autonomous driving technology in unmanned ground combat vehicles, this report deals with followings; 1) The core technologies for autonomous driving are reviewed. 2) And domestic and foreign policies for relevant technology development are investigated. 3) Then, to estimate the technology development trend, the published patents and research papers are analyzed. 4) Based on those analyses, domestic technology level and development prospects are expected.

The Sensory Properties of Imported and Domestic Pork Bellies in Korean Market (한국시장에 유통 중인 수입산 및 국내산 삼겹살의 관능적 특성)

  • Kim Il-Suk;Min Joong-Seok;Lee Sang-Ok;Jang Aera;Shin Dea-Keun;Lee Moo-Ha;Jin Sang-Keun;Chung Ku-Young
    • Food Science of Animal Resources
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    • v.25 no.4
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    • pp.383-390
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    • 2005
  • To evaluate the sensory characteristics of domestic or imported chilled and frozen bellies, twelve samples were purchased and tested Sixty panels of sensory evaluation were consisted of six groups by sex and age. Frozen bellies were no difference in flavor, taste and tenderness. However, many panels favor the juiciness and acceptability of imported ones significantly compared to those of domestic ones(P<0.001). Especially, frozen bellies from northern America were tended to be more accepted than other products. The imported ones were significantly preferred to domestic ones irrespective of age. The results of sensory evaluation of frozen bellies between imported and domestic ones were also confirmed by tested people. It was significantly preferred in domestic frozen bellies(P<0.05). However, one of the domestic from C company was not significantly different from northern products, but was more favor significantly than EU ones(P<0.05). According to the age of tested panels, 20's age preferred the domestic ones of C company. In contrast, the groups of 30's and 40's age preferred the northern American produce.

A Study on Technology Entrepreneurship Policy Focused on Innovative Growth (혁신성장기반 공공 연구자 중심의 기술창업 활성화 정책연구)

  • Yun, Jeong-Keun;Kwon, Jae-Chul;Choi, Sun-Hee
    • The Journal of Industrial Distribution & Business
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    • v.10 no.2
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    • pp.51-64
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    • 2019
  • Purpose - Research on the ability of domestic public institutions to conduct business is being conducted. Research on government support policy for public technology projects, emphasizes technology creation. Public agencies are encouraging evolutionary barriers at the stage of realistic business. This paper presents the policy possibilities by presenting policies and strategies based on corporate public policy. Research design, data, and methodology - In this study, we surveyed the actual state of public technology commercialization based on the data on state of technology commercialization of public institutions. We collected and analyzed the literature data to enhance the competitiveness of technology commercialization by identifying success cases of public technology commercialization. In Korea, there are not many research papers that provide policy alternatives for technical commercialization of public research institutes. Therefore, in this paper, we review various government policies and check the status of technology commercialization to increase its value. Results - As a result of this study, it is suggested that various policy development is necessary for the commercialization of public technology, because it is important to increase the value of technology users, suppliers, investors and customers through various network activation. In particular, it is necessary to establish differentiated Korean public technology commercialization model for the proliferation of public technology commercialization by presenting methodical model of technical commercialization. Conclusions - Through this study, it is important to raise the competitiveness of domestic public technology commercialization, to create economic value, and to improve the performance of technology commercialization. Therefore, it is necessary to contribute to the creation of research achievement, research method of excellent technology, and method of commercializing technology, and to create achievement of technical commercialization in the future. In addition, from the viewpoint of commercialization of technology, strategies for creating value through utilization of public technology should be prepared, and a plan for mutual prosperity among domestic companies should be prepared. Policy alternatives of various public technology commercialization to build national competitiveness have been developed, and various examples of performance for the performance of public technology commercialization should be derived.

Analysis of Korea's nuclear R&D priorities based on private Sector's domestic demand using AHP

  • Lee, Yunbaek;Son, Seungwook;Park, Heejun
    • Nuclear Engineering and Technology
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    • v.52 no.11
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    • pp.2660-2666
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    • 2020
  • Korea successfully achieved energy independence in the shortest period of time from being the poorest country in terms of energy 50 years ago through steady development of nuclear technology. In the past, the nuclear industry has been driven through government-centered policy development, public institution-based research, and industrial facility and infrastructure construction. Consequently, South Korea became a nuclear energy powerhouse exporting nuclear power plants to the UAE, surpassing the level of domestic technological independence. However, in recent years, the nuclear industry in Korea has experienced a decline in new plant construction since the Fukushima accident in Japan, which caused changes in public perspectives regarding nuclear power plant operation, more stringent safety standards on the operation of nuclear power plants, and a shift in governmental energy policy. These changes are expected to change the domestic nuclear industry ecosystem. Therefore, in this study, we investigate the priority of technology development investment from the perspective of experts in private nuclear power companies, shifting the focus from government-led nuclear R&D policies. To establish a direction in nuclear technology development, a survey was conducted by applying an analytic hierarchy analysis to experts who have worked in nuclear power plants for more than 15 years. The analysis items of focus were the 3 attributes of strategic importance, urgency, and business feasibility of four major fields related to nuclear energy: nuclear safety, decommissioning, radioactive waste management, and strengthening industrial competitiveness.

A Study on the Application of the RFID Technology in Textile Industry (섬유산업의 RFID기술 적용에 관한 연구)

  • Yang, Hyo-Seok;Kim, Byeong-Chan;Yang, Dae-Yong
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2008.06a
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    • pp.111-115
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    • 2008
  • Textile industry of Domestic has been descended in the sector of design, brand, recognition comparing with developed countries. And products of middle and low price do not have competitiveness against developing countries. In addition, textile industry market is changing from the provider market-oriented to consumer-driven market. RFID(Radio Frequency Identification) is the core technology to correspond in the these environmental change. RFID is a technology that is used to communicate with identified objects using radio waves, so that the objects can be recognized, tracked and traced. In this study, we reviewed characteristic and present condition of domestic textile industry and newest technology aspect of RFID. Also, we suggested application plan of RFID technology in textile industry through the analyzing RFID application case of domestic and outside the country textile industry.

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Major constituents and antioxidant activities of domestic onion (Allium cepa L.) cultivars (국내 육종 양파 품종별 주요성분의 함량 및 항산화활성 비교)

  • Hwang, Eom-Ji;Lee, Yu Geon;Lee, Hyoung Jae;Cho, Jeong-Yong;Moon, Jae-Hak
    • Korean Journal of Food Science and Technology
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    • v.53 no.4
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    • pp.434-445
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    • 2021
  • The content of major constituents and antioxidant activities of nine onion cultivars, namely yellow domestic cultivars Meapsihwang, Sinsunhwang, Yeonsinhwang, Yeongbohwang, and Yeongpoonghwang, red domestic cultivar Eumjinara, green domestic cultivar Sweetgreen, yellow-introduced cultivar Sunpower, and red-introduced cultivar Cheonjujeok, were compared. Yeongbohwang and Cheonjujeok had the highest total phenolic and total flavonoid contents among the six yellow and two red cultivars, respectively. The red cultivars displayed the highest DPPH and ABTS+ radical scavenging activities (DRSAs and ARSAs, respectively) and reducing power (RP). Among all cultivars, Cheonjujeok and Eumjinara had the highest DRSA, while both red cultivars had similar ARSAs. Among the yellow cultivars, Sinsunhwang and Yeongbohwang showed excellent DRSAs. The RP of the domestic cultivars was slightly higher than that of the introduced cultivars. Thus, the domestic cultivar Yeongbohwang exhibited excellent characteristics among the yellow cultivars, while the red cultivars Eumjinara and Cheonjujeok were similar.