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A Study on the Decision Factors and Satisfaction of SMEs
Yongsang PARK(Yongsang PARK),Jaetae KIM(Jaetae KIM) 국제융합경영학회 2023 융합경영연구 Vol.11 No.3
Purpose: The purpose of this study is to identify the determinants of store occupancy based on the rental characteristics of small and medium-sized enterprises (SMEs) renting buildings across the country, and to analyze the satisfaction level after opening. Research design, data and methodology: The study conducted an empirical survey through questionnaires targeting individual business owners, corporate representatives, and executives and employees nationwide, including Seoul, Gyeonggi, and other metropolitan areas and provincial cities. Results: In this study, the most important factor that SMEs consider when deciding whether to rent a commercial building or office is financial characteristics, followed by management characteristics, location characteristics, building characteristics, and facility characteristics. In addition, management characteristics were found to have the greatest impact on rental satisfaction of SMEs, followed by financial characteristics, building characteristics, and location characteristics in order. Conclusions: Since the lessor cannot immediately improve the location characteristics or building characteristics, in order to increase the rental satisfaction of small and medium-sized businesses in a relatively short period of time, it is necessary to improve managerial characteristics such as prompt civil complaint handling and clean management of the building. In addition, it is analyzed that if the factors that can reduce the burden on the tenants are found in advance and reflected in the financial characteristics, the satisfaction of the tenants can be increased.
Yongsang Kim,Kyungwhoon Cheun,Hyuntack Lim IEEE 2011 IEEE TRANSACTIONS ON COMMUNICATIONS Vol.59 No.5
<P>An approximate upper bound is derived to the maximum likelihood decoding threshold of weighted nonbinary repeat-accumulate (WNRA) codes over GF(q) with q-ary orthogonal modulation and coherent detection over the additive white Gaussian noise channel. As with binary RA codes, WNRA codes show the potential for achieving the channel capacity with decreasing code rate for large enough q.</P>
Yongsang Kim,Kyungwhoon Cheun,Hyuntack Lim IEEE 2011 IEEE TRANSACTIONS ON COMMUNICATIONS Vol.59 No.11
<P>Using a Gaussian approximation to the distribution of the message vectors under density evolution, we design irregular weighted nonbinary repeat-accumulate codes over GF(q) with q-ary orthogonal modulation. The resulting codes achieve a frame error rate of 10<SUP>-1</SUP> within 0.56 to 0.91 dB of channel capacity under the AWGN channel.</P>
A Reduced-Complexity Tree Search Detection Algorithm for MIMO Systems
Yongsang Kim,Kyungwhoon Cheun IEEE 2009 IEEE transactions on signal processing Vol.57 No.6
<P>In this correspondence, we propose a simplified QR-decomposition-<I>M</I> algorithm for coded multiple-input multiple-output systems based on the idea of selective branch extension. The proposed algorithm results in significant complexity reductions without observable performance losses, especially for large modulation orders where complexity reduction is most important.</P>
Design of Turbo Codes over GF(q) with q-ary Orthogonal Modulation
Yongsang Kim,Kyungwhoon Cheun,Kyeongcheol Yang,Min Sagong IEEE 2011 IEEE TRANSACTIONS ON COMMUNICATIONS Vol.59 No.3
<P>A very simple design rule for parallel concatenated Turbo codes over GF(q) with q-ary orthogonal modulation is proposed. Unlike previously proposed exhaustive search methods, the proposed design rule allows straightforward and systematic code designs for any value of q ≥ 2 and any constraint length greater than 2.</P>
김용상(Kim Yongsang),성기환(Sung Kiwhan) 한국방재학회 2018 한국방재학회지 Vol.18 No.4
In Korea, blood donations continue to decline as the country ages at a low birth. On the other hand, people in their 50s and older, which account for most of the blood transfusions, and people with severe illnesses, are on the rise. Also, blood supply is unstable during vacations and during tests as blood donation participation is concentrated on students. In this study, we examined past cases based on the role and responsibilities, participation and cooperation and networks that are key elements of cooperative governance to address the problems associated with managing blood supply crises. The reform calls for increasing the participation in blood donation by middle and middle aged people, and calls for the introduction of incentive programs to increase participation in blood donations, development of a standard model for blood donation houses, and the activation of an on-off network to enhance blood donation participation. 우리나라는 저출산 고령화로 헌혈 인구는 지속적으로 감소하고 있다. 반면 수혈의 대부분을 차지하는 50대 이상 및 중증질환자는 증가하는 추세이다. 또한, 헌혈 참여가 학생들에게 편중되어 있어 방학, 시험기간 등에는 혈액공급이 불안정하여 이에 대한 대책이 필요한 실정이다. 본 연구에서는 혈액의 공급위기관리의 문제점을 해소하고자 협력적 거버넌스의 핵심요소인 역할과 책임, 참여와 협력, 네트워크를 바탕으로 과거 사례를 분석 연구하였다. 개선안으로 중장년의 헌혈 참여 확대가 필요하며 이를 위하여 중장년의 참여 확대를 위한 인센티브제도 도입, 헌혈의 집 표준모형 개발, 헌혈 참여 확대를 위한 on-off 네트워크 활성화를 주장하였다.