全南地方 傳統住居建築 壁面의 比例特性에 관한 硏究

천득염,이영미,김선영 대한건축학회 2004 대한건축학회논문집 Vol.20 No.6

This thesis try to search the proportion character existing in the wall surfaces by examining the proportion relations appearing in the windows and doors of the traditional residence architecture, that is the opening, with numerical data. And the results of the analysis on this study are as follows. 1) The Shaping Principles by the Make-up Elements ① Shaping Principles by Embellishment Materials : The types of the make-up elements are varied according to the functions of the respective rooms. ② Shaping Principles by the Walls and Doors : In the case of the facade, visual features seems to have been considered much, whereas the rear side has the feature of being relatively free compared to the facade. 2) The Shaping Principles by the proportion relations of the Walls ① One-dimensional proportion : In both horizontal and vertical proportions, the proportion relation between Woman's quaters bedroom to the Hall the kitchen to the Hall have respectively different system, and it is thought to be the shaping principle following a hierarchy ② Two-dimensional proportion : The shape of 1 and √2 grid is found between the walls and the opening. In the elevation of the building, there seems to be the proportion relation that our ancestors preferred. And such kind of proportion relation is different from the existing western proportion relations like root·golden·rectangular proportion, it can be thought to be the very Korean proportion system existing as the formative standard in our traditional architecture.

재이식 가능한 32비트 테스크 코어 설계

윤영상,최종화,김용대,한선경,유영갑 충북대학교 컴퓨터정보통신 연구소 2004 컴퓨터정보통신연구 Vol.12 No.1

본 논문에서 제시한 32비트 테스트 코어는 기존의 ARM과 같은 32비트 RISC 코어를 대신하여 JTAG 및 코어브레이커의 회로 테스트를 위하여 고안되었다. 테스트 코어는 디버깅유닛을 바꾸어가며 재이식(retargetable) 가능하게 사용될 수 있다는 장점을 갖는다. 회로 합성 결과 하드웨어는 ARM과 비교하여 33% 정도의 게이트를 가진다. 테스트 코어는 보다 높은 디버깅 성능을 위해 다중로드(multiple load; LDMA)와 다중저장(multiple store; STMA)명령을 추가하였으며 단일로드(single load; LDR) 또는 단일저장(single store; STR)명령들에 비해 64% 정도의 처리시간 단축을 나타내었다. A 32bit RISC type core is designed to replace full processors for testing JTAG and core breaker modules. It is retargetable and can be utilized to test a debugging unit. The design uses about 33% of gates with respect to a fully designed ARM7. It has instructions, multiple load or store(LDMA, STMA), for debugging purposes. Simulation result shows that they reduce the execution time about 64% with respect to processors having a single load or store(LDR, STR) instruction.

Traffic Offloading in Two-Tier Multi-Mode Small Cell Networks over Unlicensed Bands: A Hierarchical Learning Framework

( Youming Sun ),( Hongxiang Shao ),( Xin Liu ),( Jian Zhang ),( Junfei Qiu ),( Yuhua Xu ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.11

This paper investigates the traffic offloading over unlicensed bands for two-tier multi-mode small cell networks. We formulate this problem as a Stackelberg game and apply a hierarchical learning framework to jointly maximize the utilities of both macro base station (MBS) and small base stations (SBSs). During the learning process, the MBS behaves as a leader and the SBSs are followers. A pricing mechanism is adopt by MBS and the price information is broadcasted to all SBSs by MBS firstly, then each SBS competes with other SBSs and takes its best response strategies to appropriately allocate the traffic load in licensed and unlicensed band in the sequel, taking the traffic flow payment charged by MBS into consideration. Then, we present a hierarchical Q-learning algorithm (HQL) to discover the Stackelberg equilibrium. Additionally, if some extra information can be obtained via feedback, we propose an improved hierarchical Q-learning algorithm (IHQL) to speed up the SBSs` learning process. Last but not the least, the convergence performance of the proposed two algorithms is analyzed. Numerical experiments are presented to validate the proposed schemes and show the effectiveness.

Reliability-Based Iterative Proportionality-logic Decoding of LDPC Codes with Adaptive Decision

Youming Sun,Haiqiang Chen,Xiangcheng Li,Lingshan Luo,Tuanfa Qin 한국통신학회 2015 Journal of communications and networks Vol.17 No.3

In this paper, we present a reliability-based iterative proportionality-logic decoding algorithm for two classes of structured low-density parity-check (LDPC) codes. The main contributions of this paper include: 1) Syndromemessages instead of extrinsic messages are processed and exchanged between variable nodes and check nodes, which can reduce the decoding complexity; 2) a more flexible decision mechanism is developed in which the decision threshold can be self-adjusted during the iterative process. Such decision mechanism is particularly effective for decoding the majority-logic decodable codes; 3) only part of the variable nodes satisfying the pre-designed criterion are involved for the presented algorithm, which is in the proportionality-logic sense and can further reduce the computational complexity. Simulation results show that, when combined with factor correction techniques and appropriate proportionality parameter, the presented algorithm performs well and can achieve fast decoding convergence rate while maintaining relative low decoding complexity, especially for small quantized levels (3–4 bits). The presented algorithm provides a candidate for those application scenarios where the memory load and the energy consumption are extremely constrained.

Korean medicine registry for low back pain: a study protocol for prospective observational multi-center study (KLOS)

Youme Ko,Bo-Hyoung Jang,Min-Seok Oh,신병철,Sun Joong Kim,Yun-Yeop Cha,Youn Seok Ko,황의형,Eun Jung Lee,Jae Young Jung,Yun-Kyung Song,Seong-Gyu Ko 한국한의학연구원 2020 Integrative Medicine Research Vol.9 No.4

Background: Low back pain (LBP) is a major burden in Korea. Despite its high prevalence, the government and the public health sector do not address the specific evidences of symptom control and prevention of LBP to reduce long-term healthcare costs and increase the quality of life. Thus, the Korean medicine sector encourages to collection and analysis of the medical utilization pattern of patients with LBP in Korea to provide evidences of LBP control strategy as well as political decisions. Methods: KLOS, a prospective, multi-center, patient registry pilot study will collaborate with 7 traditional Korean medicine hospitals and recruit patients with LBP into the registry. A total of 150 eligible patients with new episodes of LBP, who visit a Korean hospital without any other treatment history, will be enrolled in the registry. After enrollment, we will collect the individual characteristics of each patient, such as pain intensity, LBP-related daily disability, anthropometrics, and Health-Related Quality of Life (HRQoL) at baseline and FU1 and FU2. We will also access the patients’ clinical and administrative electronic records to analyze the pattern of patients’ resource utilization. Overall, the aims of KLOS are to (1) explore the general characteristics of patients with new episodes of LBP and (2) evaluate the efficacy and safety of various Korean medicine treatments for LBP, based on nationwide registry outcome collecting process. Discussion: The first pilot study of prospective, multi-center registry of newly diagnosed LBP patients in traditional Korean medicine hospitals. The result of this study may show the current status of LBP patients who receive Korean medicine treatments and provide evidences for reasonable decision-making on Korean medicine healthcare policy in the future. Trial registration number: ClinicalTrials.gov Identifier: NCT02418286.

Antibody Responses in Mice Stimulated by Various Doses of the Potato-Derived Major Surface Antigen of Hepatitis B Virus

Youm, Jung Won,Won, Young Suk,Jeon, Jae Heung,Moon, Ki Beom,Kim, Hyoung Chin,Shin, Kee-Sun,Joung, Hyouk,Kim, Hyun Soon American Society for Microbiology 2010 Clinical and vaccine immunology Vol.17 No.12

<B>ABSTRACT</B><P>The ability of potato-derived major surface antigen of hepatitis B virus (P-HBsAg) to elicit antibody responses to different dosages of P-HBsAg ranging from 0.02 to 30 μg administered orally in mice was examined. All immunized groups produced specific serum IgG and fecal IgA antibodies against P-HBsAg, even at low levels (<5 μg), after administration of a 0.5-μg yeast-derived HBsAg (Y-HBsAg; LG Life Sciences, Republic of Korea) booster.</P>

무선 근거리 통신망에 적용 가능한 정보보호 규격

염흥열,윤호선,김상필,이강석 순천향대학교 부설 산업기술연구소 1997 순천향 산업기술연구소논문집 Vol.3 No.2

본 논문에서는 무선 근거리 통신망에서의 프로토콜 구조를 분석한 후, 이를 바탕으로 무선 근거리 통신망에 적용 가능한 정보보호 규격을 제시하고, 기존의 보안 알고리듬의 문제점을 제시하며 그에 대한 해결 방안을 제시하여 정보보호 서비스를 실현하기 위한 정보보호 메카니듬을 도출한다.

High-level expression of a human β-site APP cleaving enzyme in transgenic tobacco chloroplasts and its immunogenicity in mice

Youm, Jung Won,Jeon, Jae Heung,Kim, Hee,Min, Sung Ran,Kim, Mi Sun,Joung, Hyouk,Jeong, Won Joong,Kim, Hyun Soon Springer-Verlag 2010 Transgenic research Vol.19 No.6

Crystallization behavior of non-stoichiometric Ge–Bi–Te ternary phase change materials for PRAM application

Sun, C W,Youm, M S,Kim, Y T IOP Pub 2007 Journal of Physics, Condensed Matter Vol.19 No.44

<P>We investigated the properties of a Ge–Bi–Te ternary chalcogenide thin film which was deposited on a SiO<SUB>2</SUB>/Si substrate by varying RF-sputtering power on the GeTe and Bi target. The aim was to search for an appropriate candidate for a new phase change memory. Various analyses are conducted in order to investigate the composition, phase separation, and crystallization behavior of the Ge–Bi–Te alloy. The XRD results of each annealed sample showed that the Ge–Bi–Te alloy crystallized into Ge<SUB>2</SUB>Bi<SUB>2</SUB>Te<SUB>5</SUB>, GeBi<SUB>2</SUB>Te<SUB>4</SUB>, GeBi<SUB>4</SUB>Te<SUB>7</SUB> phase at around 300 ?C according to Ge content and expelled amorphous Ge crystallized as a single phase over 400 ?C. Combining these with the differential scanning calorimetry (DSC) results, we demonstrated that <I>T</I><SUB>c</SUB> and <I>T</I><SUB>m</SUB> of the Ge–Bi–Te alloy are respectively higher and lower than those of conventional Ge–Sb–Te (GST) films. All the phases, including not only various Ge–Bi–Te ternary phases but also the Ge phase crystal structure, were also confirmed with high-resolution transmission electron microscopy (HR-TEM) images and diffraction patterns. It is noted that some of the Ge<SUB>2</SUB>Bi<SUB>2</SUB>Te<SUB>5</SUB> grains show specific facetted planes such as {0113}, {0112}, and {0001}. Through successive analyses, we revealed the structural evolution of the Ge–Bi–Te alloy according to Ge contents and confirmed the potential of the Ge–Bi–Te alloy for phase-change random access memory?(PRAM) applications. </P>

Structural study on the crystallization behavior of Sb₃Te₂ alloy for phase change memory

Sun, Chang Woo,Lee, Jeong Yong,Youm, Minsoo,Kim, Yong Tae WILEY-VCH Verlag 2007 Physica Status Solidi. Rapid Research Letters Vol.1 No.1

<P>The atomic crystal structure of the Sb<SUB>3</SUB>Te<SUB>2</SUB> binary alloy has been investigated with high-resolution transmission electron microscopy (HR-TEM) and fast Fourier transform patterns. As a result, there is inconsistency between the previous theoretical model and the experimental result. But, from the calculations of lattice parameters and the number of layers in the unit cell, it is found that the Sb<SUB>3</SUB>Te<SUB>2</SUB> alloy can be crystallized into the Sb<SUB>2</SUB>Te structure with P<TEX>$ \bar 3 $</TEX>m1 space group and the difference between stacking sequences of the Sb<SUB>3</SUB>Te<SUB>2</SUB> and the Sb<SUB>2</SUB>Te structures has been discussed with the proposed atomic arrangement model of unit cells. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)</P>