• Title/Summary/Keyword: 파이

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Genetic Diversity of Mulberry Dwarf Phytoplasma(MD) by SSCP Technique (SSCP기법에 의한 뽕나무오갈병 파이토플라스의 유전적 다형성 분석)

  • Han, Sangsub
    • Journal of Korean Society of Forest Science
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    • v.102 no.2
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    • pp.223-228
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    • 2013
  • Phytoplasmas were detected consistently in 42 mulberry cultivars showing dwarf disease using DNA analysis by amplification with phytoplasma universal primer pairs P1/P7 (about 1.8 kb and R16F2n/R2 (about 1.2 kb). The point mutation from 42 cultivars of mulberry tree was detected by single-strand conformation polymorphism (SSCP) analysis. The SSCP profiles were clearly observed from all of cultivars in 8% polyacrylamide gel, electrophoresizing for and running 8-15 hrs. at 150V, $10^{\circ}C$. The MD and JWB phytoplasma PCR products was mixed and electrophoresis was performed to detect their polymorphism. In this results, the SSCP profiles of all bands of MD and JWB were analyzed on single lane and were distinct in their each of band patterns. The SSCP analysis was possible to detect of 1.8 kb and 1.2 kb nucleotide size and near close band patterns were distinct by mix of two samples. Previously, it was only possible to detect of point mutation under 600 bp nucleotide sequence by SSCP analysis but this modification of SSCP technique was possible to detect clearly SSCP band patterns of about 1.8 kb and 1.2 kb nucleotides.

Effect of Interesterified Lard for the Preparation of Pie Crust (에스테르화 라아드가 파이 껍질 제조에 미치는 영향)

  • Kim, Myoung-Ae
    • Korean Journal of Food Science and Technology
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    • v.24 no.3
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    • pp.251-255
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    • 1992
  • Lard was randomly interesterified to improve handling efficiency with increase of plasticity, and it's physicochemical properties and adaptability for making pie were investigated. Fatty acid and triacylglycerol composition were not changed after interesterification. Interesterified lard could be useful during winter because the handling was convenient due to drop in the temperature range of $18{\sim}23.5^{\circ}C$ in lard and $13{\sim}19.5^{\circ}C$ in interesterified lard with SFI $15{\sim}25$. Interesterified lard was decreased in the extensibility by change of crystal form, and not suitable for making pie as the inferior characters for layers forming, appearance and shortness. But interesterified lard mixed with plastic fat of high extensibility showed the possibility of making pie, and the maximum mixture ratio was 50% for good pie quality.

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Fabrication and Characteristics of Mesophase Pitch-Based Graphite Foams Prepared Using PVA-AAc Solution (PVA-AAc 용액을 사용한 메조페이스 핏치기반 그라파이트 폼의 제조 및 특성)

  • Kim, Ji-Hyun;Lee, Sangmin;Jeong, Euigyung;Lee, Young-Seak
    • Applied Chemistry for Engineering
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    • v.26 no.6
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    • pp.706-713
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    • 2015
  • Graphite foams (GFs) were prepared by adding different amounts of mesophase pitch (MP) into polyvinyl alcohol-acrylic acid (PVA-AAc) solution followed by the heat treatment. It was confirmed that the pore diameters of GFs were controlled by the slurry concentration, which was the mesophase content added in polymer solution, and their thermal conductivity and compressive strength were also controlled by porosities of GFs formed at different conditions. The resulting GFs in this study had the highest thermal conductivity of $53.414{\pm}0.002W/mK$ and compressive strength of $1.348{\pm}0.864MPa$ at 0.69 in porosity. The thermal conductivity of MP based GFs increased approximately 23 times higher than that of using isotropic pitch based GFs due to the developed graphitic structure.

Fabrication of smart alarm service system using a tiny flame detection sensor based on a Raspberry Pi (라즈베리파이 기반 미소 불꽃 감지를 이용한 스마트 경보 서비스 시스템 구현)

  • Lee, Young-Min;Sohn, Kyung-Rak
    • Journal of Advanced Marine Engineering and Technology
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    • v.39 no.9
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    • pp.953-958
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    • 2015
  • Raspberry Pi is a credit card-sized computer with support for a large number of input and output peripherals. This makes it the perfect platform for interaction with many different devices and for usage in a wide range of applications. When combined with Wi-Fi, it can communicate remotely, therefore increasing its suitability for the construction of wireless sensor nodes. In addition, data processing and decision-making can be based on artificial intelligence, what is performed in developed testbed on the example of monitoring and determining the confidence of fire. In this paper, we demonstrated the usage of Raspberry Pi as a sensor web node for fire-safety monitoring in a building. When the UV-flame sensors detect a flame as thin as that of a candle, the Raspberry Pi sends a push-message to notify the assigned smartphone of the on-site situation through the GCM server. A mobile app was developed to provide a real-time video streaming service in order to determine a false alarm. If an emergency occurs, one can immediately call for help.

Effects of Gibberellin and Phytochrome B on Internode Elongation in Sorghum (수수의 절간 신장에 미치는 지베렐린과 파이토크롬 B의 영향)

  • 이인중;김길웅;모간페이지
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.5
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    • pp.548-555
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    • 1997
  • Sorghum seedlings lacking one of the phytochromes, phyB, have elongated internode, suggesting that they may have an alteration in gibberellin physiology. To test the possibility that phyB mutations affect seedling gibberellin perception and metabolism, the responsiveness of wild-type and phyB-1 seedlings to exogenous $GA_3$ was investigated. The phyB-1 showed higher internode elongation rate than the wild type in response to lower concentrations of exogenous $GA_3$ application, showing that the mutation causes an increase in responsiveness to GA. However, at the higher concentrations of $GA_3$ application, phyB-l and wild-type showed similar elongation rate, impling that responsiveness to higher concentrations of GA is not controlled by phytochrome. These results suggest that, although GAs are required for internode elongation, phyB does not act primarily by changing absolute levels of GAs but rather by decreasing seedling responsiveness to GAs at lower concentrations.

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Bolt Loosening Analysis under Transverse Vibration for Design of Reliable Pyrotechnic Separation Nut (신뢰성 있는 파이로테크닉 분리 너트 설계를 위한 진동 시 볼트 풀림 해석)

  • Choi, Jae Young;Woo, Jeongmin;Kang, Dahoon;Kim, Jeong Ho;Cho, Jin Yeon;Jang, Seung-gyo;Yang, Hee Won
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.12
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    • pp.1004-1011
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    • 2018
  • Recently, pyrotechnic separation nut has attracted a considerable attention because of its shock reduction effect among various pyrotechnic mechanical devices. However, its bolt loosening behavior under transverse vibration has not been studied sufficiently, since segmented nuts are utilized instead of conventional nut in pyrotechnic separation nut. With the background, bolt loosening analyses are carried out referring to Junker vibration test. The analysis procedure consists of two steps. The first step is the bolt fastening step, screwing the bolt by fastening torque. The second step is the bolt loosening step under transverse vibration. Through the procedure, bolt loosening behaviors are obtained, and the effect of clearance on loosening behavior is closely investigated for reliable design of pyrotechnic separation nut.

RaspberryPi board control with GPIO (GPIO를 사용한 RaspberryPi 보드 제어)

  • Lee, Sung-jin;Choi, Chul-kil;Choi, Byeong-yoon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2014.05a
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    • pp.429-431
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    • 2014
  • Raspberry Pi is in the UK (Paspberry Pi) Foundation created a compact / Cheap PC and was developed as part of the educational project. RCA connection jack and has been released in March 2012 was also sold out in one hour. Raspberry Pi Linux kernel based operating system called Raspberry Pi using optimized Raspbian Debian-based operating systems are often used to be free. Raspberry Pi is currently in the field of IoT with the board quite Cubie limelight and Cubie board holds more data. Arduino is quite easy to reach and access to the avr but impossible to include any custom code associated to a library and customize drawbacks must be solved only. Raspberry Pi using the Raj Caribbean and limitations of low cost, but there is a small output. So, for a combination of the two, with GPOI was reminiscent of hardware control. In this paper, using GPIO Cooking Hacks RaspberryPi board for controlling input and output by using the shield is insufficient expansion raspberry pie was confirmed that the good operation was verified.

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Formal Semantics Based on Action Equation 2.0 for Python (작용식 2.0 기반 파이썬에 대한 형식 의미론)

  • Han, Jung Lan
    • KIPS Transactions on Computer and Communication Systems
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    • v.10 no.6
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    • pp.163-172
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    • 2021
  • To specify a formal semantics for a programming language is to do a significant part for design, standardization and translation of it. The Python is popular and powerful, it is necessary to do research for a formal semantics to specify a static and dynamic semantics for Python clearly in order to design a similar language and do an efficient translation. This paper presents the Action Equation 2.0 that specifies a formal semantics for Python to change and update Action Equation. To measure the execution time for Python programs, we implemented the semantic structure specified in Action Equation 2.0 in Java, and prove through simulation that Action Equation 2.0 is a real semantic structure that can be implemented. The specified Action Equation 2.0 is compared to other descriptions, in terms of readability, modularity, extensibility, and flexibility and then we verified that Action Equation 2.0 is superior to other formal semantics.