• Title/Summary/Keyword: Transfer

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Free Vibration Analysis of Double Cylindrical Shells Using Transfer of Influence Coefficent (영향계수의 전달에 의한 2중 원통형 셸의 자유진동해석)

  • Choi, Myung-Soo;Yeo, Dong-Jun
    • Journal of Power System Engineering
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    • v.21 no.5
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    • pp.48-54
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    • 2017
  • The transfer influence coefficient method which is an vibration analysis algorithm based on the transfer of influence coefficient is applied to the free vibration analysis of double cylindrical shells. After the computational programs for the free vibration analysis of double cylindrical shells were made using the transfer influence coefficient method and the transfer matrix method, we compared the results using the transfer influence coefficient method with those by the transfer matrix method. The transfer influence coefficient method provided the good computational results in the free vibration analysis of double cylindrical shells. In particular, The results of the transfer influence coefficient method are superior to those of the transfer matrix method when the stiffness of internal springs connecting a inside cylindrical shell and a outside cylindrical shell is very large.

Linguistic Modeling for Multilingual Machine Translation based on Common Transfer (공통변환 기반 다국어 자동번역을 위한 언어학적 모델링)

  • Choi, Sungkwon;Kim, Younggil
    • Language and Information
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    • v.18 no.1
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    • pp.77-97
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    • 2014
  • Multilingual machine translation means the machine translation that is for more than two languages. Common transfer means the transfer in which we can reuse the transfer rules among similar languages according to linguistic typology. Therefore, the multilingual machine translation based on common transfer is the multilingual machine translation that can share the transfer rules among languages with similar linguistic typology. This paper describes the linguistic modeling for multilingual machine translation based on common transfer under development. This linguistic modeling consists of the linguistic devices such as 1) multilingual common Part-of-Speech set, 2) multilingual common transfer format, 3) multilingual common transfer chunking, and 4) multilingual common transfer rules based on linguistic typology. Validity of this linguistic modeling for multilingual machine translation is shown in the simulation. The multilingual machine translation system based on common transfer including Korean, English, Chinese, Spanish, and French will be developed till 2018.

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Effect of Ca on Droplet Transfer Phenomena in GMA Welding (GMAW 용적이행 현상에 미치는 Ca의 영향)

  • 안영호;방국수;이종봉;장내웅
    • Journal of Welding and Joining
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    • v.12 no.4
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    • pp.76-84
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    • 1994
  • Droplet transfer modes due to welding conditions and the effect of Ca in welding wire on droplet transfer were investigated. Droplet transfer mode in CO$_{2}$ welding was classified into 2 modes, that is, short circuit and globular transfer, with increasing welding current and voltage. With increasing Ca content in wire, repulsive pressure due to vaporization of Ca was considerably increased. In short circuit transfer region, arcing time was increased and droplet transfer cycle was decreased, with increasing Ca content. In globular transfer region, welding condition for globular transfer was lower current region, with increasing Ca content.

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A Study for Increasing Satisfaction of Transfer Facilities, Services & Transit Tour by Analyzing Air Passengers' Behaviors (항공여객 특성분석을 통한 환승시설·서비스 및 환승투어 만족도 제고 연구)

  • Kim, Kwang-Ok;Kim, Kee-Woong;Kim, Kwang-Il;Kim, Nam-Sun;Park, Sung-Sik
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.23 no.2
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    • pp.89-97
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    • 2015
  • The volume of transfer passengers now faces a crisis because the number of Chinese and Japanese passengers, the majority of transfer through Korea, is decreasing. This paper is analyzing the their air travel behaviors as well as characteristics of their transfer behaviors at airport. According to the research, it is suggested that transfer passengers perceive the importance of duty-free stores but their satisfaction of using duty-free stores during their transfer at Icheon airport was proven to be low. Considering the characteristics of transfer service quality at Incheon airport, waiting time of transfer is important but not satisfactory for them. Moreover, information of free transfer tour to city downtown and paid-in transfer tour for medical tourism is not known very well among North East Asian passengers. Thus, it is necessary to do detailed research of North East Asian transfer passengers, who have transferred through Incheon airport more than twice a year, to find out their exact needs of transfer tour in Korea.

Viability of Nuclear Transfer Bovine Embryos after Embryo Transfer (소 핵이식란의 이식 후 생존성에 관한 연구)

  • 정희태;임석기;박춘근;양부근;김정익
    • Korean Journal of Animal Reproduction
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    • v.22 no.2
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    • pp.153-161
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    • 1998
  • This study was conducted to examine the viability of nuclear transfer bovine embryos following embryo transfer. Donor embryos were treated with nocodazole to arrest their cell-cycle-stage at mitotic(M) phase. After releasing from nocodazole blastomeres were separated and transferred into the enucleated oocytes(BC), or cultured in medium with aphidicolin. Freshly cleaved blastomeres within 1.5h after cleavage(AC) and non-cleaved ones up to 3h after releasing from nocodazole(NC) were transferred into the enucleated oocytes. Blastocysts derived from nuclear transfer were transferred to Day 7~8 recipient cows. Some blastocysts were vitrified and thawed before embryo transfer. Developmental rates to the blastocyst stage were higher in AC(18.1%, P<0.05) than BC(8.6%) and NC(5.1%). Blastocyst development slightly enhanced with aphidicolin(1~2$\mu\textrm{g}$/ml) treatment(16.9~22.6%) compared to non treated control(11.1%). Survival rate fo vitrified nuclear transfer embryos after thawing was 75%(24/32). Twnety-three vitrified nuclear transfer embryos and 3 fresh ones were transferred to 23 recipients, 6 heads were pregnant and 1 male calf(24 kg) was born from a recipient cow recevied one vitrifiedthawed nuclear transfer embryo at 277 days after embryo transfer. This result suggests that the nuclear transfer embryos can developed to term after vitrification andembryo transfer.

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Design and Implementation of Transfer Buffer Sharing Technique for Efficient Massive Data Transfer

  • Cho, Dae-Soo
    • Journal of information and communication convergence engineering
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    • v.6 no.3
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    • pp.327-330
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    • 2008
  • It is required that a server which communicates with various client simultaneously should have an efficient data transfer model. In Windows$^{(R)}$ environment, the server was generally developed based on IOCP model. Developing the IOCP model, the server generally has one data transfer buffer per client. If the server divides a larger data than the transfer buffer into several fragments, there used to be a problem in sending it to a client, because there is a conflict in a data transfer buffer. That is, CPU requests one data-fragment transfer, then it will request the next data-fragment transfer successively before completing the previous request, owing to the property of overlapped IO model. In this paper, we proposed the transfer buffer sharing technique to solve the conflicting problem. The experimental result shows that the performance of data transfer was enhanced by 39% maximally.

A Study on the Transfer of Letter of Credit in the UCP600 - Focusing on Comparing with Transfer of drawing rights in the ISP98 - (신용장통일규칙(UCP600)상 양도에 관한 연구 - 보증신용장통일규칙(ISP98)과의 비교를 중심으로 -)

  • Park, Se-Hoon;Choi, Young-Joo
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.53
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    • pp.75-97
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    • 2012
  • This study primarily concerns the transfer of letter of credit. A transferable credit is a credit that clearly specifies it is 'transferable' and may be made available in whole or in part to second beneficiary by the request of the first beneficiary. the transfer of the credit is available where the seller as a middleman in intermediate trades purchases from domestic and international supplier. The purpose of this study is to examine the transfer of letter of credit in the UCP600. Having recognized the differences, the study analyzes the transfer of letter of credit under the UCP600 in comparison to those under the ISP98. The ISP98, like the UCP600, stipulates for the requirement of transfer, the number of transfer, conditions of transfer, the replacement of the name of first beneficiary.

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The Mediating Effects of Participation Motivation on the Relationship between Organizational Learning Transfer Climate and Learning Transfer in Professional Engineers' Continuing Professional Development Activities (조직의 학습전이풍토가 기술사의 학습전이에 미치는 영향 - 계속전문교육(CPD) 참여 동기의 매개효과를 중심으로 -)

  • Bae, Eul Kyoo;Jung, Bo Ra;Lee, Min Young
    • Journal of Engineering Education Research
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    • v.16 no.2
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    • pp.11-23
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    • 2013
  • The main purpose of this study was to examine the mediating effect of participation motivation of continuing professional development between the level of organizational learning transfer climate and learning transfer. In the analysis of the relationship among the level of the organizational learning transfer climate, learning transfer and participation motivation of CPD, organizational learning transfer climate had indirect influence on learning transfer through participation motivation of CPD. Based upon the findings of this study, several suggestions were made to improve professional engineers' participation and learning transfer in CPD and implement future research on professional engineer's CPD.

Probabilistic Approach to Time Varying Available Transfer Capability Calculation (확률론적 기법을 이용한 시변 가용송전용량 결정)

  • Shin, Dong-Jun;Kim, Kyu-Ho;Kim, Jin-O
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.54 no.11
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    • pp.533-539
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    • 2005
  • According to NERC definition, Available Transfer Capability (ATC) is a measure of the transfer capability remaining in the physical transmission network for the future commercial activity. To calculate Available Transfer Capability, accurate and defensible Total Transfer Capability, Capacity Benefit Margin and Transmission Reliability Margin should be calculated in advance. This paper proposes a method to quantify time varying Available Transfer Capability based on probabilistic approach. The uncertainties of power system and market are considered as complex random variables. Total Transfer Capability is determined by optimization technique such as SQP(Sequential Quadratic Programming). Transmission Reliability Margin with the desired probabilistic margin is calculated based on Probabilistic Load Flow analysis, and Capacity Benefit Margin is evaluated using LOLE of the system. Suggested Available Transfer Capability quantification method is verified using IEEE RTS with 72 bus. The proposed method shows efficiency and flexibility for the quantification of Available Transfer Capability.

A study on the heat transfer performance of evaporator for absorption chiller (흡수식 냉온수기용 증발기의 전열성능에 관한 연구)

  • Kwon, Oh-Kyung;Cha, Dong-An;Yun, Jae-Ho;Kim, Hyo-Sang
    • Proceedings of the SAREK Conference
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    • 2008.11a
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    • pp.192-197
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    • 2008
  • The objectives of this paper are to measure the heat transfer and pressure drop of the heat transfer tube for an evaporator of absorption system applications. Five types of heat transfer tubes with different shape and heat transfer area are tested in the present experiment. Heat transfer and pressure drop performance of heat transfer tubes are measured in various operating conditions, and compared each other. The results show that the heat transfer rate of thermoexcel notch tube and low fin tube increases about 27.6% and 11.6% at the refrigerant flow rate 250 kg/h compared with that of bare tube, respectively. The thermoexcel notch tube is shown the best performance considering pressure drop and heat transfer coefficient.

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