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尹榮重 大田工業專門大學 1982 論文集 Vol.31 No.-
If group manifolds are complete, group operations are commutative. In this case, the algebraic theory of Abelian manifolds, such as homomorphism, relation of divisors, differsential forms and so on about group manifalds has been already established perfactly. This paper aims to study whether this theory can be argued in complex fields in an analytic manner. When the function in which f(z), the homomorphic function of comrplex n-var-iables in ¢^n=(R^2n, J) satisfies transformation, is Considered. Abelian manifolds as well as algebraic curves ean verity, the theory of manifolds about modulus analytically with relative easiness. In addition if Abelian function fields are difined, complex analytic homomorphy can be derived from them, and Abelian integration can be defined without difficulty because all of the defferential forms is real fields can be made out of linear spaces in complex fields.
尹榮重 大田工業高等專門學校 1971 論文集 Vol.8 No.-
Gauss achieved a great success in showing the algebric theorem, which has the epoch-making importance in the history of mathematics, by using the complex number. Cauchy, using a complex number, developed his theory of function and solved many doubtful problems in differential and integral calculus. According to the development of the projective geometry, it has been made certain that the elements of an imaginary quantity must be used in geometry, too. Therefore, it is very unnatural and inconvenient that we should think every problem in the scope of an actual number. The harmonic and integral development of mathematics is possible only in the scope of a complex number and we'd be able to clarify the deep qualities of mathematics by thinking about a function of the complex number. I dare say that the mathematics of today is that of a complex number. So widely is used a complex number in every field. Now, I'd like to think about the representation of the linear function among the qualities of a complex number.
박주형,이상렬,윤형국,윤영중 延世大學校 電波通信共同硏究所 1999 電波通信論文誌 Vol.4 No.1
We have designed and developed narrow bandpass multipole filters for satellite communication using ??(YBCO) thin films on MgO substrates. The superconducting film used in this study was prepared by laser ablation on one side polished MgO (100) substrates. A Nd:YAG laser was used to fabricate YBCO thin films. The wave length of the laser was 355 nm. The laser beam was focused onto a YBCO target rotating linearly to avoid deep craters that may eject macroscopic YBCO particles. The YBCO films were grown at 750 ℃ in the oxygen partial pressure of 200mTorr. The deposited YBCO thin films were patterned by conventional wet-etching method. The transition temperatures of YBCO thin films were 85 - 88 K and the film thicknesses were about 5,000 A. By comparing the performances of normal-metal filters and YBCO filters, we observed that superconducting YBCO multipole filters have been showed superior performances at 77 K.
김연정,윤완석,윤영중 연세대학교 산업기술연구소 1999 논문집 Vol.31 No.1
In this paper, to transmit and receive the differently polarized signals simultaneously with a single antenna system, the dual-frequency microstrip array antenna with dual-polarization is proposed and designed. This antenna operates simultaneously at 14.25 GHz and 12.50 GHz. To extend to two dimensional array, microstrip feed line and coaxial probe through via-hole are used.
윤영중,박한규 대한전자공학회 1995 전자공학회논문지-A Vol.32 No.11
In this paper, an ultrasonic phased array transducer with spherical liquid lens, which utilizes both electronic focusing by linear phased array and variable geometric focusing by spherical lens. is investigated. This system reduces the elevational beamwidth which is disadvantage of the 1-dimensional linear phased array, and adds real-time dynamic focusing capability by controlling the volume of liquid in the lens. A prototype of this transducer is constructed and tested. The experimental results are compared with those of computer simulations. The range of applications are in the hyperthermia applicators or ultrasonic image system with narrow beam and rapid scanning characterisitcs.
윤영중 한밭대학교 산업과학기술연구소 1995 논문집 Vol.3 No.-
Generally, The Meromorphic function is expended in various types. When a function f(z) is given as, f(z)=C_kZ^k+C_k+1Z^k+1+……, (C_k≠0, K>0) if, the gero point of the function f(z)/z^k are a_1, a_2, …a_n,……, the function f(z)/z^k becomes a function which has not gero point and can be expressed as a form of function e^g(z). Therefore, we have a factorization of function f(z) at |z|<+∞ f(z)=d^g(z)Z^k??{(1-z/a_n)exp[z/a_n+1/z(z/a_n)^2+…+1/λ_n(z/a_n)^λn]} Also, when a function f(z) is the Meromorphic function at |z|<+∞, we verify that multipliction of f(z) by the function, which has the gero point such as, b_1, b_2, …, b_n, …, that are the poles of function f(z) gives the integral function which has the same gero point of function f(z) f(z)=e^g(z)Z^k(??{(1-z/a_n)exp[z/a_n+1/z(z/a_n)^2+…+1/λ_n(z/a_n)^λn]})/(??{(1-z/a_n)exp[z/b_n+1/z(z/b_n)^2+…+1/λ_n(z/b_n)^λn]})