• Title/Summary/Keyword: Link Types

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Analyzing The Types of Policy Support Used by Venture-Backed Startups (벤처투자를 유치한 창업 기업의 정책지원 이용 유형 분석)

  • Jaesung James Park
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.4
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    • pp.177-191
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    • 2023
  • This study analyzes the types of linkages between major projects used by firms that attracted venture capital among firms that received government support in the field of SME startups. It identifies the types of linkages between support programs related to attracting venture investment and verifies the usefulness of integrated and cooperative support. The main findings of this study are as follows. First, Startup Success Packages, Startup Foundation Funds*, Youth Entrepreneurship Centers, and Training are the main programs used by startups and venture firms, and support-implementing agencies use these programs to provide support for each stage of growth. Second, the majority of startups and venture firms receiving policy support for job creation and manpower enhancement projects. Third, export-type growth companies receive continuous support from MSS, MOTIE, MSIT, and KIPO. Fourth, job creation programs drive the employment performance and creation of companies. Fifth, local government support projects tend to rely heavily on central government support programs. Sixth, growth companies in the startup and venture sector have a clear link to credit guarantee scheme by KIBO. These findings provide empirical evidence on the necessity and feasibility of integrated and collaborative support, and are expected to contribute to the direction of better support policies.

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Burst Mode AGC Loop and Preamble Detector for VDL Mode-2 (VDL Mode-2 를 위한 버스트 모드 AGC 루프 및 프리엠블 검출기)

  • Gim, Jong-Man;Eun, Chang-Soo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.7C
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    • pp.706-714
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    • 2009
  • In this paper, we proposed a burst mode AGC loop and preamble detector applicable for VDL(VHF Digital Link) mode-2 using D8PSK modulation scheme and the performance analysis of proposed schemes is described. Generally the AGC scheme can be divided into two types, continuos and burst mode AGC. The continuos mode is performed well only with an analog feedback AGC loop. But the analog feedback AGC loop is not suitable for burst mode since its gain lock time is more than preamble duration, which causes the preamble detector misses preamble. Hence a fast digital AGC loop is required for burst mode. Also the AGC loop has to be designed with full gain during idle time to detect bursts although the signal level is very low. If the time to acquire gain lock is slow, the preamble detector fail to detect burst due to saturation of a lot of preamble samples. The receiver performance might be down even if the burst was detected because the preamble is used to estimate several parameters need to demodulation at receiver. In this paper we analysed relationships between the AGC loop and preamble detector. we present an AGC loop and preamble detector in burst mode.

Effect of Housing on Physiological Responses and Energy Expenditure of Sheep in a Semi-arid Region of India

  • Bhatta, Raghavendra;Swain, N.;Verma, D.L.;Singh, N.P.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.8
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    • pp.1188-1193
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    • 2005
  • An investigation was carried out to study the effect of two housing systems on physiological responses and energy expenditure of sheep in a semi-arid region of India. Two types of housing management were adopted. First was a shed- $6{\times}3\;m^2$ structure with all the four sides of 1.8 m chain link fencing with a central height of 3 m. The roof was covered with asbestos sheets and with mud floorings. Second was an open corral- $6{\times}3\;m^2$ open space with all the four sides covered with 1.8 m chain link fencing. Thirty-four (32 ewes and 2 rams) sheep of native Malpura breed aged about 18 months (body weight 28 kg ewes; 35 kg rams) were grazed together on a 35 ha plot of native range. All the sheep were grazed as a flock from 08.00 to 17.00 h during a yearlong study. The flock was divided into two groups (16 ewes+1 ram) in the evening and housed as per the systems (Shed and Open Corral). Dry and wet temperatures were recorded at 06.00 h and 21.00 h using a wet and dry bulb-thermometer both inside the shed and in the open corral and temperature humidity index (THI) was calculated. There was significant (p<0.05) difference in the THI between shed and open corral in all the seasons, indicating that shed was always warmer compared to open corral. Rectal temperature (RT) of both the groups of sheep was similar during morning as well as evening throughout the seasons. There were significant (p<0.05) differences in the skin temperature (ST) and respiration rate (RR) between the two groups at both the measurements in all the seasons. Highest energy expenditure (EE) was recorded inside the shed at 21.00 h (224 kJ/h) during monsoon and lowest at 6.00 h during winter (119 kJ/h). There was a significant (p<0.05) difference between the EE inside the shed and that in the open corral. It was concluded that housing had significant effects on the physiological responses and EE of sheep. Provision of housing at night was stressful during monsoon (with less rainfall) and summer, whereas it was protecting the sheep from acute cold during winter in a semi-arid region of India.

A Study on the Loop Detector System for Real-Time Traffic Adaptive Signal Control (실시간 교통신호제어를 위한 루프 검지기 체계 연구)

  • 이승환;이철기
    • Journal of Korean Society of Transportation
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    • v.14 no.2
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    • pp.59-88
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    • 1996
  • This study has determined optimal type, and location of loop detector to measure accurately traffic condition influenced by traffic variation with real time. Optimal type of loop detector for through vehicle at stop bar was determined by confidences of occupancy period, and nonoccupancy period, and so appropriate detector type for application to real time traffic control system has been decided on special loop detector.

    shows types and winding methods of existing detector (num1) and special detector (num 7,8) determined. It is desired that optimal location of through loop detector should be installed within 50cm of stop bar owing to vehicle behavior. And optimal location of loop detector for left turn vehicle is determined by left turn vehicle behavior on stop bar. In the case of install only one loop, it is desirable that within 20cm of stop bar. Both the special loop (1.8 × 4.0m : num 1.7) and existing loop (1.8 × 1.8m : num1) would be suitable. A location standard aspects, while regarding as economic, existing loop (1.8 × 1.8m : num1) would be suitable. A location of the queue detector and the spillback prevention detector considering the link length, the pedestran crossing is be or not and the estimation range of queue. And if the link length is shorter than 250m, locations of queue detector and spillback protect detector must be considered in the respect of queue management.

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A Proposal of the Social Commerce Strategy for the Public Services' Performance Improvement (공공행정서비스 성과향상을 위한 소셜커머스 적용 전략 제안)

  • Chang, Yun Hee
    • Journal of Digital Convergence
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    • v.12 no.3
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    • pp.161-176
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    • 2014
  • Social commerce is a new internet business model which are types of joint purchase, social link, promotion, and on-off association etc. The recent public organization has the dual target to increase sound finance, and to improve customer satisfaction and the quality of public service. The purpose of this study is to propose the strategy of public social commerce which makes it's customers become positive purchasers. We analyzed 31 public organizations, and found that the type of social link interlocking with SNS site in the various purpose of public, and the offline association type using the service of location base would be utilized very highly. We also found that the joint purchase type and the promotion type would be used in the area of public and private selective services intending to make a profit. The anticipated performance are as follows: rapidity and reliance, customer made thing and goodwill, convenience for the service environment quality, publicity and diffusion, and sales promotion, productivity increase and new finding of revenue model for the profit increase outcome.

Analysis of Culinary Arts Major Students' Subjective Perceptions in Overseas Employment Program (해외취업 프로그램에 대한 식음료조리계열 조리전공 졸업생의 주관적 인식유형 분석 연구)

  • Kim, Chan-Woo;Shin, Seoung-Hoon
    • The Journal of the Korea Contents Association
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    • v.19 no.8
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    • pp.630-640
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    • 2019
  • This Study analysed subjective perceptions of culinary arts major students who participated in overseas employment program for providing vital information for future program development. The study adopted Q methodology as an analogizing tool and found four distinctive types. The first type is Link to Domestic Employment Type(Type 1, N=6), the second type is Finding New Enterprise needed Type(Type 2, N=8), the third one is Major Customized Language Education Demand Type(Type 3, N=3), and the last one is Major Divided Education Demand Type(Type 4, N=2). The results indicated that importance of establishing a bridge between overseas employment and domestic employment with providing specific information of domestic job recruiting process. It is also emphasized that informing extra available job placements for the students is vital. Lastly when the sub program were formed, it is necessary to divide students based on not only overseas employment destination but also their major.

Development of Safety Performance Functions and Level of Service of Safety on National Roads Using Traffic Big Data (교통 빅데이터를 이용한 전국 도로 안전성능함수 및 안전등급 개발 연구)

  • Kwon, Kenan;Park, Sangmin;Jeong, Harim;Kwon, Cheolwoo;Yun, Ilsoo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.18 no.5
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    • pp.34-48
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    • 2019
  • The purpose of this study was two-fold; first, to develop safety performance functions (SPF) using transportation-related big data for all types of roads in Korea were developed, Second, to provide basic information to develop measures for relatively dangerous roads by evaluating the safety grade for various roads based on it. The coordinates of traffic accident data are used to match roads across the country based on the national standard node and link system. As independent variables, this study effort uses link length, the number of traffic volume data from ViewT established by the Korea Transport Research Institute, and the number of dangerous driving behaviors based on the digital tachograph system installed on commercial vehicles. Based on the methodology and result of analysis used in this study, it is expected that the transportation safety improvement projects can be properly selected, and the effects can be clearly monitored and quantified.

Strategies Against Human Papillomavirus Infection and Cervical Cancer

  • Jung Woon-Won;Chun Taehoon;Sul Donggeun;Hwang Kwang Woo;Kang Hyung-Sik;Lee Duck Joo;Han In-Kwon
    • Journal of Microbiology
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    • v.42 no.4
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    • pp.255-266
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    • 2004
  • Papillomaviruses infect a wide variety of animals, including humans. The human papillomavirus (HPV), in particular, is one of the most common causes of sexually transmitted disease. More than 200 types of HPV have been identified by DNA sequence data, and 85 HPV genotypes have been well char­acterized to date. HPV can infect the basal epithelial cells of the skin or inner tissue linings, and are, accordingly, categorized as either cutaneous or mucosal type. HPV is associated with a panoply of clin­ical conditions, ranging from innocuous lesions to cervical cancer. In the early 1980s, studies first reported a link between cervical cancer and genital HPV infection. Genital HPV infections are now rec­ognized to be a major risk factor in at least $95\%$ of cervical cancers. 30 different HPV genotypes have been identified as causative of sexually transmitted diseases, most of which induce lesions in the cervix, vagina, vulva, penis, and anus, as the result of sexual contact. There is also direct evidence demon­strating that at least four of these genotypes are prerequisite factors in cervical cancer. The main aim of this review was to evaluate the current literature regarding the pathovirology, diagnostics, vaccines, therapy, risk groups, and further therapeutic directions for HPV infections. In addition, we reviewed the current status of HPV infections in South Korean women, as evidenced by our data.

TCP Congestion Control based on Context Switch in Heterogeneous Wireless Networks (이기종망간의 수직적 핸드오프에 대한 상태전환 방식의 TCP 혼잡제어방안)

  • Seok, Woo-Jin;Choi, Young-Hwan;Park, Gui-Soon;Na, Jee-Hyeon;Kim, Sang-Ha
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.32 no.7A
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    • pp.700-709
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    • 2007
  • The heterogeneous wireless access networks has been envisioned to characterize the future wireless networks. In such environments, TCP(Transmission Control Protocol) has to experience poor end-to-end performance because bandwidth and link delay change suddenly when a mobile node moves over different types of wireless networks, which is called vertical handoff. In this paper, we propose a new TCP which maintains each set of congestion control variables, which we call TCP context, for each type of wireless network. The proposed TCP can switch the TCP context against vertical handoff in order to adjust quickly to a newly arrived network. In simulations, the proposed TCP has higher throughput than TCP SACK(Selective Acknowledgment Options) due to its great features to vertical handoff situations.

An Efficient Control Strategy Based Multi Converter UPQC using with Fuzzy Logic Controller for Power Quality Problems

  • Paduchuri, Chandra Babu;Dash, Subhransu Sekhar;Subramani, C.;Kiran, S. Harish
    • Journal of Electrical Engineering and Technology
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    • v.10 no.1
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    • pp.379-387
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    • 2015
  • A custom power device provides an integrated solution to the present problems that are faced by the utilities and power distribution. In this paper, a new controller is designed which is connected to a multiconverter unified power quality conditioner (MC-UPQC) for improving the power quality issues adopted modified synchronous reference frame (MSRF) theory with Fuzzy logic control (FLC) technique. This newly designed controller is connected to a source in order to compensate voltage and current in two feeders. The expanded concept of UPQC is multi converter-UPQC; this system has a two-series voltage source inverter and one shunt voltage source inverter connected back to back. This configuration will helps mitigate any type of voltage / current fluctuations and power factor correction in power distribution network to improve power quality issues. In the proposed system the power can be conveyed from one feeder to another in order to mitigate the voltage sag, swell, interruption and transient response of the system. The control strategies of multi converter- UPQC are designed based on the modified synchronous reference frame theory with fuzzy logic controller. The fast dynamics response of dc link capacitor is achieved with the help of Fuzzy logic controller. Different types of fault conditions are taken and simulated for the analysis and the results are compared with the conventional method. The relevant simulation and compensation performance analysis of the proposed multi converter-UPQC with fuzzy logic controller is performed.