무선 ATM에서의 효율적인 자원할당 알고리즘

최명렬,조태경,권재우 漢陽大學校 工學技術硏究所 2000 工學技術論文集 Vol.9 No.1

본 논문에서는 셀을 섹터로 구분하고 이동국이 어느 섹터에 위치하는가를 추정하여 핸드오버할 확률이 가장 높은 최인접셀을 정하므로써 효율적인 대역폭 할당을 할 수 있는 핸드오버 알고리즘을 제안하였고, 서비스 트래픽을 실시간과 비실시간으로 구분하므로써 무선 멀티미디어 환경에 알맞은 대역폭 할당을 가능하게 했다. 또한 이에 적합한 무선 MAC프로토콜을 제안하여 구현하고자 하는 무선 ATM환경을 보다 구체적이며 실제적으로 나타냈다. 본 논문에서 제안한 알고리즘은 기존의 핸드오버 알고리즘과 SMPL로 비교 시뮬레이션하여 성능을 검증해 보았다. We propose the handover algorithm considering the position of mobile terminal and determining the most adjacent cell with the highest probability of handover. The proposed algorithm can make a effective bandwidth allocation and may be applicable to the condition of wireless multimedia. In addition, the proposed algorithm is considered efficient wireless MAC protocol. The simulation results of the proposed algorithm show better performance in both blocking probability and handover probability than conventional one.

Nonlinear Cardiac Dynamics and Morning Dip : 위험한 일중리듬 An Unsound Circadian Rhythm

염명걸,김남수,오재원,김창렬,이재웅,김순길,이철범,노정일,최정연,윤용수 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.3

運動選手의 스포오츠에 對한 態度 : 男子 大學生을 中心으로

趙明烈 淑明女子大學校 1978 論文集 Vol.18 No.-

1. Purpose This research was conducted to identify what attitudes and images toward sportes the athletes and non-athletes students have, with perspectives to provide useful informations and guidelines to establishing future physical education. The major problemes were as followes; a) Attitudes toward sports by athletes and non-athletes students. b) Images toward sports by athletes and non-athletes students. c) Attitudes toward sports by athletes sportsman. (football, basket-ball, baseball, rugby, ice-hocky) d) Images toward sports by athletes sportsman. 2. Methods Subjects were 394 female college students atheletes; 203, non-athletes; 191 from 2 universities in Seoul. Attitudes scale toward sports (20 items) and images scale to sports (20 items) were used for this research. 3. Results 1) Athletes thinks that sports promote physical ability, encourage the sprit of obeying laws, protect body and encourage humanity than non-athletes students. 2) Non-athletes students emphasizes that sports give refreshment and amusement, need urbanities and are seldom related to juvenile delinguency than athletes. 3) Athletes thinks that sports need more time and impede to achieve academic performance. Non-athletes students thought to need more money than athletes. 4) Football athletes have the most positive attitude toward sports than basket-ball, baseball, rugby and ice-hockey athletes. 5) On images to sports, athletes perceives that sports are more important, clean, strong, fast, complicated, minded and passive than non-athletes students. But non-athletes students perceives sports give more fun to people than athletes. 6) On images to sports by athletics sportsman, football athletes have the most positive attitude toward sports than baseball, basket-ball, rugby and ice hockey athletes, but basket-ball athletes have the least positive attitude than other athletes. These results could be concluded that the more students participate sports activities, the more have positive attitude toward sports.

스포오츠(sports)에 對한 態度에 關한 調査 硏究 : 서울 市內 中·高·大學生을 中心으로

趙明烈 淑明女子大學校 1977 論文集 Vol.17 No.-

1. Purpose This research was conducted to identify what attitudes toward sports the students have, with perspectives to provide useful informiation and guidelines to establishing future physical education. The major problems dealt in this research were, as follows; a) Attitudes toward sports by school levels, (junior high school, senior high school, college) b) Attitudes toward sports by sex. c) Images of sports by school levels. d) Images of sports by sex. 2. Methods Subjects were 2118 students (male; 1031, female; 1087) from 30 high schools and colleges in seoul, Attituds scale toward sports (20 items) and Image scale of sports (20 items) by researcher were used for this research. 3. Results 1) Attitude toward sports a) The students in general thought that sports promote physical ability encourage the spirit of obeying laws, and give refreshment However they regard that sports also make girls more masculinity. b) Junior high school students perceived that sports could be closely related with abnomal body development, juvenile delinquency and impeding factor to achieve excellent school performance. c) Senior high school students perceived that sports promote friendship, make school performance lower, and that urbanities need more sports. d) College students perceived that sports promote friendship, urbanities need more sports and that needs money and time. e) Male students have more positive attitude toword sports than female students. 2) Images to sports a) The students in general thought sports give fun to people and are very important. b) Male students evaluated sports, sharper, more violent and manly than female student. And this tendency is stronger in Junior high school than in other school levels. c) Male students thought sports active and speedy, and female students thought sports much more physical. Junior high school students thought sports more speedy and physical than other students. College students thought sports active. The result could be summarized as follows; (1) the students have positive attitude toward sports, (2) male students have more positive attitude toward sports than female students. and (3) college students have most positive attitude toward sports.

확장 가능한 신경회로망 모듈 칩 설계

최명렬,조화현 漢陽大學校 工學技術硏究所 2000 工學技術論文集 Vol.9 No.1

본 논문에서는 간단한 비선형 시냅스 회로와 비선형 곱셈기를 이용하여 온 칩 학습기능을 포함한 모듈 칩을 설계하였다. 모듈 칩의 학습 회로는 MEBP(Modified Error Back-Propagation) 학습 규칙을 적용하여 구현하였으며, 모듈 칩이 출력 층과 은닉 층의 학습회로가 동일하므로 어떤 층에서도 사용 가능하도록 설계하였다. 제안한 모듈 칩은 HSPICE 회로 시뮬레이터를 이용하여 동작을 검증하였다. 제안한 모듈 칩은 확장 가능한 온 칩 학습 기능을 내장한 신경회로망 칩으로 대규모의 FNNs(Feedforwad Neural Networks) 구현에 매우 적합하리라 예상된다. A modular chip with on-chip learning has been implemented using nonlinear synapse circuits and nonlinear multiplier circuits. The MEBP(Modified Error Back-Propagation) learning rule is employed for learning circuitry. The module chip has been designed for use of any layer since the learning circuitry of the output layer is as same as that of the hidden layer. The operation of the proposed modular chip has been verified using HSPICE circuit simulator. The modular neural chip might be very suitable for the future implementation of the large-scale neural networks with on-chip learning.

신경 회로망의 시냅스 구현을 위한 아날로그 벡터 곱셈기

최명렬 한양대학교 공학기술연구소 1993 공학기술논문집 Vol.2 No.1

An analog vector multiplier is described for the implementation of synapses in neural networks. The multiplier is designed to execute the linear multiplication between analog signals and analog synaptic weights in artificial neural networks using standard CMOS technology. The inputs and outputs of the multiplier are given in voltage units. Employing this multiplier, we can implement large scale artificial neural networks using fewer MOS transistors than are required by the implementation of the so-call Gilbert multiplier. PSPICE circuit simulations have been executed in order to quantify the performance of this multiplier by measuring the following specifications : maximum percentage error, output offset, X or Y nonlinearity, X or Y feedthrough, small-signal bandwidth, and slew rate, and setting time. An 11-dimensional analog vector multiplier has been designed using the MAGIC VLSI tools and 2㎛ CMOS n-well technology.

債權者代位訴訟과 旣判力

李東律,趙明來 건국대학교 사회정책연구소 1998 사회과학연구 Vol.9 No.-

正常人과 慢性腰痛患者와의 脊推周圍筋에 대한 正量的 筋電圖値에 關한 硏究

김성률,김명일 경남대학교 교육문제연구소 2000 敎育理論과 實踐 Vol.10 No.1

The purpose of this study was to provide the resource of sports medicine that analyzed a paravertebral musles EMG between healthy Korean adults and low back pain patients in order to treat low back pain by studying the causes of the disease, correcting postures, and using exercise therapy. Subjects were 16 healthy people and 16 low back pain patients, and statistics were analyzed by t-test in SPSS 9.0. The results of the study were followings : 1.Low back pain group revealed generally higher value in total amplitude, frequences, and mean amplitude than control group under the various postures and stresses. 2.The differences of total amplitude in 5 postures and 4 stresses were statistically significant (P>0.05) except in supine, supported sitting posture and straight leg raising stress were statistically not significant (P>0.05). 3.The difference of frequencies between test group and control group were statistically significant (p<0.001) in postures of Korean style sitting, standing, 90 flexion and in stress of lateral bending 45 and 90bending. 4.The differences of meats amplitude(rectified mean amolitude or intergrated EMG)between test group and control group were statistically significant (P>0.05) in postures of supine, Korea style sitting, standing, 45 and 90 flexion, and in stress of lateral bending, 45 bending, 90 bending, extension from full flexed spine, The unsupported sitting, supported sitting and SLR revealed statistically not significant (P>0.05). 5.Low back pain originated with suspicious soft tisuue croup, comparing to control croup showed high value in total amplitude and mean amplitude, were statistically significant in all postures and stresses except supine, supported sitting, and SLR(P<0.05).The frequencies of EMG values, however, were statistically not significant except Korean sitting unsupported sitting, SLR and lateral bending. 6.Low back pain group orginated herniated lumber disc were revealed statistically significant, higher values in total amplitude, and mean rectified amplitudes than control groups except supine, unsupported, sitting and straight leg raising exercises. 7.In the quantitative EMG values of paravertebral invarious postures and stresses, total amplitude, frequencies and rectified mean amplitudes revealed to have high correlation coeffcient. 8.We would consider more convention to diagnose and evaluate the low back pain patients accurately and reasonably with simple method of measurement of quantitative EMG value in proper posture and during stress on paraverterbral muscles.

DES (Data Encryption Standard) 전용 Crypto-Processor의 구현

박진성,최명렬 漢陽大學校 工學技術硏究所 1997 工學技術論文集 Vol.6 No.1

This Paper describes the hardware implementation of DES(Data Encryption Standard). The DES has been a worldwide standard for over 15 years. For DES, data are encrypted in 64-bit blocks using a 56-bit key. The DES algorithm transforms 64-bit input in a series of steps into a 64-bit output. It is impossible to deduce the plaintext from the only the ciphertext without the key We construct the DES system with crypto-processor concept with VHDL, and the processor has been fabricated by HYUNDAIs 0.8μm Sea-of-Gate process in the 1996 MPC project via IDEC(IC Design Education Center). DES can be used for military purpose, the secure communication, and especially Smart IC card applications in which the private information is stored.

루프 미러로 구성된 기준팔을 가지는 파장 스위핑 OCT 구현

김훈섭,남궁명우,이정렬,엄진섭 江原大學校 産業技術硏究所 2007 産業技術硏究 Vol.27 No.B

As a reflector of reference arm in OCT systems, a coated fiber reflector has mostly used. Instead, this paper has realized the swaept source optical coherence tomography system using a loop mirror within a reference ann. Through the expehments for a tilted thin glass plate, we found that the loop mirror is better than the coated fiber typed mirror for obtaining the clear image.