• Title/Summary/Keyword: control suitability

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Food plants suitable for mass rearing of the coconut hispine beetle Brontispa longissima

  • Yamashita, Ai;Winotai, Amporn;Nakamura, Satoshi;Takasu, Keiji
    • Korean Journal of Agricultural Science
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    • v.36 no.1
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    • pp.57-61
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    • 2009
  • The invasive pest Brontispa longissima(Coleoptera: Chrysomelidae), native to Indonesia and Papua New Guinea, has extended its distribution to Australia, Asia and Pacific islands and caused serious leaf damages of the coconut palm Cocos nuciferain the invaded regions. Although biological control using parasitic wasps has successfully reduced population density and leaf damage levels, this pest and its natural enemies have not been efficiently producedin conventional methods using young leaves of C. nucifera. In the present study, we examined suitability of plants easily available in Thailand and Japan for mass rearing of this pest to develop effective mass rearing system of this pest. Mature, green leaves of the palms were also suitable for immature development and adult reproduction of this pest. Since mature leaves of C. nucifera are more abundant and less contaminated with fungus than the unopened leaf buds, mature leaves could be a promising plant diet for mass rearing of B. longissima. Ornamental palms such as Hyophorbe lagenicaulis and Washingtonia filifera were also suitable for immature development and reproduction of B. longissima. Away from palms, the cattail Typha spp. can sustain immature development and adult reproduction of B. longissima. In the area where C. nucifera is rare or not available, W. filifera or Typha spp. would be good food plants for mass rearing of this pest.

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An Empirical Study on the Performance and Success factors of Transformation from OEM Exporting companies to ODM (OEM 수출기업의 ODM 전환 성과와 성공요인에 관한 실증연구)

  • Kim, Gwi-Ok;Bae, Jung-Han
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.37
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    • pp.361-389
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    • 2008
  • The purpose of this study is to detect the factors which have an effect on transformation level and performance and to provide the ways of successful transformation and vitalization from OEM to ODM. This study was proceeded by an empirical analysis. A model and hypotheses were set up and they were verified through the empirical analysis. Those factors were divided into four, inner company factors, strategic factors, core competence factors and purchase determining factors. In the result of the model suitability analysis on the study model of relationship among 'influencing factors of ODM transformation - ODM transformation level-export performance', every factors, $X^2=912.067$, DF=261, p value=0.000, GFI=0.737, AGFI=0.620, NFI=0.786, IFI=0.837, CFI=0.834, Q value=3.495 were rather insufficient to be a good model, but they were good enough for the general analysis. Taking these accounts into consideration, this study suggests the following implications. First, making a plan and setting up strategies in advance are required. Second, financial plan has to be prepared. Third, trends in global markets have to be analyzed. Fourth, companies have to focus on developing new materials and products through R&D. Fifth, quality competitiveness and quality control systems are required.

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A Study on the Risk Management of Strategic Materials (전략물자 무역 리스크 관리 방안에 대한 연구)

  • LEE, Kyung-Lyung;LEE, Seoung-Taek
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.72
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    • pp.115-137
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    • 2016
  • Trade can be greatly influenced by the change of international trade environment due to the characteristics of remote transactions. Furthermore, in the circumstance of emphasizing the national security again, the importance of the risk management of special materials has been increasing. As it was noted at Chapter 4, significant results such as the threat of enterprises' sustainable growth can be occurred when companies are related to the unlawful export of strategic materials or experience discouragement of export of main products. As the decision of strategic materials greatly depend on a specialized knowledge there is a possibility of misjudgement of strategic materials in terms of ordinary companies which is not accustomed to them. Furthermore risk management is more difficult due to the inclusion to the items of export license. To prepare such a risk of export of strategic materials, firstly, it should be checked to find whether counter traders are working in the industry which is not related to the spread of weapons of mass destruction, secondly, an appropriate process shall be designed and operated for products to be safely delivered to the trade counter. Therefore, our export enterprises have to introduce CP(Compliance Program), AEO or ISO28000 considering suitability for their actual situations not only to promote export and but also to avoid risk of export control and additional expenses. Through these appropriate processes, an efficient and effective management of the trade risk of strategic materials can be accomplished.

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ASR Resistance of Ternary Cementitious Systems Containing Silica Fume-Fly Ash Using Modified ASTM C 1260 Method

  • Shon, Chang-Seon;Kim, Young-Su;Jeong, Jae-Dong
    • Journal of the Korea Concrete Institute
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    • v.15 no.3
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    • pp.497-503
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    • 2003
  • Supplementary cementitious materials (SCM) such as fly ash, ground granulated blast furnace slag and silica fume are now being extensively used in concrete to control expansion due to alkali-silica reactivity (ASR). However, the replacement level of a single SCM needed to deleterious ASR expansion and cracking may create other problem and concerns. For example, incorporating silica fume at levels greater than 10% by mass of cement may lead to dispersion and workability concerns, while fly ash can lead to poor strength development at early age, The combination of silica fume and fly ash in ternary cementitious system may alleviate this and other concerns, and result in a number of synergistic effects. The aim of the study was to enable evaluation of more realistic suitability of a silica fume-fly ash combination system for ASR resistance based on an in-house modification of ASTM C 1260 test method. The modification can be more closely identified with actual field conditions. In this study three different strengths of NaOH test solution(1N, 0.5N, and 0.25N) were used to measure the expansion characteristics of mortar bar made with a reactive aggregate. The other variable included longer testing period of 28 days instead of a conventional 14 days.

A Study on the Psychological Responses by the change of Illuminance and Color temperature in LED (LED 광원의 색온도와 조도 변화에 따른 심리반응 연구)

  • Yi, Yon-Soo;Ha, Mi-Kyoung
    • Korean Institute of Interior Design Journal
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    • v.21 no.6
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    • pp.129-136
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    • 2012
  • As the importance of eco-friendly and energy saving issues are emphasized in lighting as consciousness about energy saving is elated worldwide, demand for natural resources such as gas increases, supply of LED lighting is spread. Owing to white LED's development and price fall. It is expected to LED High Luminance Emitting Diode. LED's brightness and long life-time that surpass fluorescent light in the latest as well as is used by back light source of thin film LCD, low electric power attrition rate by advantage do and widen the market at the world lighting lamp market that is potential market. Accordingly, study about suitability of LED lighting is activated but space that apply actual LED lighting fixtures yet is less and advanced researches about LED fixtures' applied apaces are slight compared to existing light source up to now because is not many on this. The result of the experiment shows similar tendency with the existing light sources'. Through a psychological reaction experiment in the LED lighting experiencing space that can control of color temperature and lighting level, this study is wished to use to the data for lighting design of space that LED lighting fixtures are applied hereafter.

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The Procedural Benefits of Arbitrating Patent Disputes

  • Kim, Kap-You (Kevin);Khalil, Umaer
    • Journal of Arbitration Studies
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    • v.26 no.3
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    • pp.51-66
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    • 2016
  • This paper considers how various types of patent disputes can be more efficiently resolved through arbitration, rather than litigation. For this analysis, it takes three types of patent disputes as a control sample - contractual disputes, infringement disputes and FRAND disputes - and assess how these disputes can be better resolved through arbitration in terms of several criteria, namely, the suitability of the decision-makers, the number of forums in which disputes have to separately decided and enforced, procedural flexibility and confidentiality. The paper takes into consideration that certain types of patent disputes, such as infringement disputes and FRAND disputes are unlikely to be subject to pre-existing arbitration agreements. In these types of disputes, parties may make the decision between arbitration and litigation based on strategic and tactical concerns, rather than legal ones. The paper concludes that, given this limitation, it is not possible to categorically state whether arbitration is more suitable than litigation for resolving patent disputes. The most sensible course to follow in adopting arbitration for patent disputes is for legal advisors to be familiar with the intricate benefits and pitfalls of arbitration in patent disputes, and to actively consider referring a dispute to arbitration over litigation after a dispute has arisen.

Real Time Framework Design based on Android Platform (안드로이드 플랫폼을 기반으로 한 실시간 프레임워크 설계)

  • Kang, Ki-Woong;Han, Kyu-Cheol;Jang, Seung-Jin;Lim, Se-Jung;Kim, Kwang-Jun;Jang, Chang-Soo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.9 no.11
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    • pp.1255-1266
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    • 2014
  • This thesis presents MPU module, Base board and sensor module which are efficient industrial control through design and manufacture as developing S5PV210 CPU of SAMSUNG used by ARM Cortex-A8 based on Android which is Open mobile platform is installed to embedded system. Data for temperature and humidity which are received by sensor module proved the suitability and validity for the real time framework design as implementing application program employed the smart phone App with hybrid application based on DB of web server.

Analysis and Forecast of Non-Stationary Monthly Steam Flow (비정상 월유량 시계열의 해석과 예측)

  • 이재형;선우중호
    • Water for future
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    • v.11 no.2
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    • pp.54-61
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    • 1978
  • An attemption of synthesizing and forecasting of monthly river flow has been made by employing a linear stochastic difference equation model. As one of the linear stochestic difference equation model, an ARIMA Type is tested to find the suitability of the model to the monthly river flows. On the assumption of the stationary covariacne of differenced monthly river flows the model is identrfield and is evaluated so that the residuale have the minimum variance. Finally a test is performed to finld the residerals beings White noise. Monthly river flows at six stations in Han River Basin are applied for case studies. It was found that the difference operator is a good measure of forecasting the monthly river flow.

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Tofu Qualities as Influenced by Soybeans Storage Temperatures (콩의 저장온도가 두부 품질에 미치는 영향)

  • 이현자;설민숙;차보숙;육홍선
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.5
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    • pp.833-839
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    • 1998
  • Hwangkeum Kong was stored at 5$^{\circ}C$, $25^{\circ}C$ and 35$^{\circ}C$ for 8 months to investigate the changes of the suitability for Tofu processing. The properties of Tofu prepared with the soybeans stored at 5$^{\circ}C$ for 8 months showed no significant differences from the non-stored control soybeans. However, soybeans stored under high temperatures showed low yield, water holding capacity and Sag value of Tofu Compared with the soybeans stored at 5$^{\circ}C$ for 8 months, fracturability in the texture of Tofu significantly increased when the soybeans had been stored at $25^{\circ}C$ and 35$^{\circ}C$ for 8 months, while hardness, cohesiveness, adhesiveness, elasticity, gumminess and chewiness decreased. The color of Tofu changed from pale yellow to brown depending on high temperature and long-term of storage. The Tofu prepared with the soybeans stored under high temperatures was significantly different in sensory evaluations from the non-stored soybeans as well as from the soybeans stored at 5$^{\circ}C$ for 8 months in color(p<0.01), texture(p<0.05) and taste(p<0.05).

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Validation of an analytical method for cyanide determination in blood, urine, lung, and skin tissues of rats using gas chromatography mass spectrometry (GC-MS)

  • Shin, Min-Chul;Kwon, Young Sang;Kim, Jong-Hwan;Hwang, Kyunghwa;Seo, Jong-Su
    • Analytical Science and Technology
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    • v.32 no.3
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    • pp.88-95
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    • 2019
  • This study was conducted to establish the analytical method for the determination of cyanide in blood, urine, lung and skin tissues in rats. In order to detect or quantify the sodium cyanide in above biological matrixes, it was derivatized to Pentafluorobenzyl cyanide (PFB-CN) using pentafluorobenzyl bromide (PFB-Br) and then reaction substance was analyzed using gas chromatography mass spectrometer (GC/MS)-SIM (selected ion monitoring) mode. The analytical method for cyanide determination was validated with respect to parameters such as selectivity, system suitability, linearity, accuracy and precision. No interference peak was observed for the determination of cyanide in blank samples, zero samples and lower limit of quantification (LLOQ) samples. The lowest limit detection (LOD) for cyanide was $10{\mu}M$. The linear dynamic range was from 10 to $200{\mu}M$ for cyanide with correlation coefficients higher than 0.99. For quality control samples at four different concentrations including LLOQ that were analyzed in quintuplicate, on six separate occasions, the accuracy and precision range from -14.1 % to 14.5% and 2.7 % to 18.3 %, respectively. The GC/MS-based method of analysis established in this study could be applied to the toxicokinetic study of cyanide on biological matrix substrates such as blood, urine, lung and skin tissues.