영웅소설의 敍事行程 나타난 기능적 의미분석

이상설 한국국어교육학회 1997 새국어교육 Vol.54 No.1

염정설화의 의미체계와 서사문학

이상설 명지어문학회 1996 明知語文學 Vol.23 No.-

자율신경계 자극 음악이 젊은 여성의 악력, 혈압, 민첩성에 미치는 영향

이상설,양경한,박정서,명정호 대한재활치료과학회 2021 대한재활치료과학학회지 Vol.14 No.1

英雄小說의 의미구조 연구 : 홍길동, 유충렬을 중심으로 especially concerning on Hongildong chun & yuchungyeol chun

이상설 聖潔大學校 人文科學硏究所 1997 人文科學論叢 Vol.2 No.-

古代 傳記의 本質과 文學的 展開

李相卨 명지어문학회 1990 明知語文學 Vol.19 No.-

굴곡선형 다이폴 안테나의 복사특성

이상설 光云大學校 1974 論文集 Vol.3 No.-

Recently, the snaked-line antenna is used widely for the X-band radar systems. The radiation characteristics of the linear antennas are well known and can be predicted from the magnetic vector potential for an assumed current distribution. However, little is known about the behavior of the arbitary-shaped bent antennas, except for the U-shaped antenna developed by Montgomery. The radiation characteristics of bent-wire antennas have been shown by experimental measurements. This work is carried to find the current distribution of a bent-wire element by the moment method and then to derive the general expressions of the retarded vector potential, the resulting complex field and Poynting vectors in the far zone. Since the snaked-line antenna is composed of several bent-wire elements of the same form, this work is a part of the analysis of the snaked-line antenna. For the antenna which is bent-y-z plane of rectangular coordinates, its current vector can be expressed by the function representing its wire shape, and the Poynting vector from the current can be obtained. In equation L(f)=g, when L is a linear operator, its solution f can be expanded by the basic functions f₁,f₂......If scalar product is taken to the equation by the weighting functions ω₁, ω₂.....it can be transformed to the matrix relation and its solution is found. The matrix dimension of the equation and the accuracy of its solution depend on the choice of basic functions and weighting functions. By the properties of linear space, basic functions and weighting functions must be linearly independent. The bent-wire antenna is considered as N shout sigments connected together. The end points of each segment define a pair of terminals. These terminals can be thought of as forming an N-port network, and the wire antenna is obtained by short-circuiting all ports of the network. One can determine the impedance matrix for the N-port network. The impedance matrix elements can be determined by the current and the voltage relations, when applying the current to one segment, the voltage induced by the current to the other port which is open circuited is measured. If the admittance matrix which is the inverse of the impedance matrix is known, by applying voltage to any port the port current matrix (current distribution on the wire) can be found by the voltage and admittance matrix multiplication. From the solution of an integral equation for the charge and current induced on a conducting body by the impressed field, elements of the impedance matrix is obtained. Integrals are approximated by the sum of integrals over N small segments, obtained by treating its current and charges as constants over each segment. Derivatives are approximated by finite differences over the same intervals used for integration. Since in antennas, the voltage source is applied only on the feeding point, the voltage matrix is transformed to a column matrix which has zero elements except the feeding point element. Since the current is computed by the relation (I)=(Y)(V), for the unit voltage source, the current matrix is the column of admittance matrix which has the same column number as the feeding point number. And nth diagonal element of the admittance matrix is the input admittance of the antenna which is fed at nth element. By the above method, the input impedance and radiation patterns of sinusoidal-shaped dipole antenna were computed by an IBM 360/40 computer which had a core memory capacity of 63K. When an image pane which is large compared with the antenna length is placed behind the antenna, by the image theory, the resultant radiation patterns are identical to be 2-element array pattern. The antenna; the diameter of its conductor 1.0mm, the length of end to end 10cm, the undulation amplitude 4cm, was used for measurements, and an alminium plate; its size 92 × 92cm², its thickness 1.5mm, was used as the image plane. The antenna impedance was measured by the parallel-plate slotted section coaxial standing wave detector and its radiation patterns were measured by the fixed detecting antenna which detected the radiation power radiated form the antenna rotating on the pattern measuring table. The results of the measurements is inconsistent with the theoretical results. For the sinusoidal-shaped dipole antenna, its radiation pattern for ø=0 plane is broader than the linear dipole antenna, but for θ=π/2 plane directivity is higher than dipole. Its impedance characteristics show that the resonance frequency of he sinusoidal-shaped dipole antenna is different from that of the linear dipole antenna with the same length. Since in this method, the antenna is considered of the sets of small segments, this method can be applicable to the antenna of which shape not represented by the continuous function, for example, the rectangular form, triangular form. etc. In this work, the radiation properties of a part of the snaked-line antenna is analysed. This method of analysis is can be extended to snaked-line antenna if its travelingwave terms are considered.

삼국유사 인물설화의 소설화 과정 연구 : 세태풍자 이야기와 세태풍자 소설을 중심으로

이상설 명지어문학회 1995 明知語文學 Vol.22 No.-

진로그 특성을 이용한 비디오 주파수 정밀 로그 증폭기의 구현

송문규,이상설 圓光大學校 1995 論文集 Vol.29 No.2

신호처리 분야에서 넓은 동적범위의 신호를 처리하고 동적범위를 압축시켜야만 할 여러가지 상황이 존재한다. 순간적인 동적범위의 압축을 성취하기 위한 일반적인 기법은 적절히 설계된 로그 증폭기를 사용하는 것이다. 특히 계측 장비에 적용된 로그 증폭기는 동적범위의 압축과 동시에 눈금단위를 볼트 대신 데시벨로 표현해주는 역할을 수행해준다. 본 논문에서는 이러한 목적을 달성하기 위해 입력의 동적범위가 70dB인 로그 증폭기를 구현하였다. 측정결과 로그 오차는 1dB이하이며, 11MHz에서 32MHz까지의 3dB대역폭 내에서 편평한 주파수특성을 갖는다. It is necessary that wide dynamic range, frequency characteristics, accuracy, and stability are required for accurately measuring input signals. For this purpose, any specially designed logarithmic amplifier which has good linearity is considered in this paper. The logarithmic amplifier implemented in this paper is capable of producing a true logarithmic transfer characteristics within ±1dB of logarithmic error over input dynamic range of 70dB, and with an amplitude response flat within 3dB from 11MHz to 32MHz.

유한요소법을 이용한 우리별-2호 위성의 구조해석 ( A Structural Analysis of KITSAT-2 Satellite using Finite Element Method )

이상설,이주진 대한기계학회 1993 대한기계학회 춘추학술대회 Vol.- No.-

에너지절약기술 이전ㆍ도입 현황에 대한 조사연구

이상설,오광기,김대호 한국산업경영시스템학회 2003 한국산업경영시스템학회 학술대회 Vol.2003 No.추계

Diffusions of energy conservation technology are very important class in our country that resources and energy are lacking, and development, transfer, diffusions etc.. of energy conservation technology can speak as one method that can improve country competitive power along with company competitive power. But, in the case of our country, present condition grasping about energy conservation technology passing?induction did not consist. This research grasp present condition about energy conservation technology passing?induction of our country and present direction for energy conservation technology activation, for which connected company into question investigation enforce and behaved frequency analysis and crossing analysis etc.