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- 저자 : 주창근 (검색결과 25 건)
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내부대칭성 SU(2)를 포함하는 超巨場의 Legrangian
주창근 慶北大學校 1980 論文集 Vol.30 No.-
A supergauge invariant Lagrangian for the superfields with SU(2) internal symmetry is constructed. The Lagrangian is shown to be free of ghosts, and is just same to the conventional one expressed by its constituent fields.
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A Note on Zero Divisors and Nilpotent Elements in Power Series Rings
朱昌根 群山大學校 1983 論文集 Vol.6 No.-
本 論文은 單位元을 갖는 可換環 R의 R[[X]]에 對한 性質들을 考察하고, R[[X]]가 Noetherian 일때 f(x)∈R[[x]]가 零因子 되기 위한 必要充分 條件은 rf(x)=0을 만족하는 r∈R가 존재함을 밝히고, g(X)가 零元이 되기위한 必要充分 條件은 g(x)의 각 계수들이 零元이 됨을 밝힌다. It is well known that a polynomial f(x) over commutative ring with identity is nilpotent if and only if each coefficient of f(x) is nilpotent, and f(x) is a zero divisor in R(x) if and only if there is a nanzero element r of R with rf(x)=0.[1]. But unfortunately, there do not, in general, exist analegues of above theorems. In this paper, we survey some properties concerning power series ring, and prove that if R is Noetherian, then g(x) is a zero divisor of R[[x]] if and only if g(x) is annihilated by some non zero element of R.(Th. 2.2).And if R is Noetherian, then g(x) is nilpotent if and only if each coefficient of g(x) is nilpotent (Th.3.4).
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주창근 경북대학교 1971 生産技術 Vol.5 No.-
The carbonyl stretching frequencies of substituted benzanilides in the solid phase have been determined. Substituents in benzoyl ring give a good correlation with σ^+. This means that direct resoance interaction is significant for the carbonyl streching. The equation ν=12.11σ^++1650.4, was obtained, making it possible to calculate the carbonyl stretching frequencies for benzanilides. Using the σ^+ values for substituents, it was found that the electron transmission ability of benzanilides is twice as great as that of Chalcones.
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주창근,홍한식 慶北大學校 1972 論文集 Vol.16 No.-
This paper attacks to clarify what the nature of classical tachyon is. From the comparison of the properties of tachyon (which should be anticipated for) with those of bradyon, it is indicated that the recent main debates on the relations between tachyon and causality would run far from the physical reality, and one may conclude that tachyons are just no more than virtual particles. At last, it is explained that why we should necessarily assume such tachyons and how the relation between tachyon and causality should be exactly explained.
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朱昌謹 慶北大學校 1975 論文集 Vol.19 No.-
It is proposed that the physical states of the neutral kaons should be the eigenstates of the modified CP defined as e^iαsCpe^-iαs. The relation η_+-= η_00 in the CP-violation parameters is directly derived from the assumption of arg A_0=arg A_2 in the decay amplitude. Finally, the origin of so-called CP-non-invariance in the long lived neutral kaon decay is clarified to come from its original modified CP eigenstate.
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주창근 慶北大學校 1977 論文集 Vol.24 No.-
An alternate preon model is formalized by modifying Salam's preon model slightly, which explains the structures of hadrons and leptons. In this model, the fractional electric charges of quarks are completely extracted. As one preon carries one intrinsic quantum number, we have eight proper charges from eight preons. From these eight charges plus fermion number, isospins, electric charge and baryon number are derived. This model predicts the existence of heavy particles(heavy leptons, heavy quarks, and heavy hadrons) from the preonic structure of particles, and also predicts the maximum value of spin for particles. At last, we propose alternative selection rules.
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주창근 慶北大學校 1972 論文集 Vol.16 No.-
A gauge invariant complex Lagrangian for the classical electromagnetic field is formalized with real electric charge as ordinary at first, from which the two sets of Maxwell's equations are completely derived and represented in a simple formula with the aid of σ-matrices. Next, taking the electric charge to be complex, one could just construct the classical electrodynamics in agreement with that by the dual vector potential fields on the assumption of the existence of the magneticmonopole.
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주창근,강영호,손기수 慶北大學校 1971 論文集 Vol.15 No.-
Kinematics of special relativity is depicted through space-time diagrams, whereby Doppler effects can be presented in a graphical form rather than analytic. Such space-time diagrams, which are a variation of Minkowsky's, are then applied to the derivation of Einstein's formula E=hν for the photon.
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주창근,조병하 慶北大學校 1969 論文集 Vol.13 No.-
6-벡터 장인 전자자의 일반 Lorentz변환식이 Lorentz힘과 전자장의 두 불변량 EㆍB 및 E^2-B^2으로부터 직접 유도되었다.
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