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李鍾傑 忠州大學校 1998 한국교통대학교 논문집 Vol.33 No.1
This paper developed systematically the theory of Symmetric Expression using and based on set, and examined the relation of equality. Introducing the four rules of arithmetic operation on the basis of set theory and examining their properties, this paper constructed a system of Symmetric Expression. I hope this paper will help think logically in using the Symmetric Expression and grope for desirable teaching method.
李鍾傑 忠州大學校 1996 한국교통대학교 논문집 Vol.31 No.1
This paper developed systematically the theory of Integral Expression using and based on set, and examined the relation of equality. Introducing the four rules of arithmetic operation on the basis of set theory and examining their properties, or this paper constructed a system of integral Expression, by introducing. I hope this paper will help think logically in using the Integral Expression and grope for desirable teaching method.
李鍾傑 忠州大學校 1989 한국교통대학교 논문집 Vol.23 No.-
In this paper I developed the process of functional concept of superior limit and inferior limit. The contents are as follows: 1) I defined the meaning of limit point by introducing [ε→δ] into the limit concept [χ→α], to lead the concept of upper bound, lower bound, and sup. inf. 2) During the set operation I derived the monotone increasing sequence of sets from the fact that intersection-set is akin the G.C.M in number and of the monotone decreasing sequence of sets from the fact that union-set is akin to L.C.M in number. 3) It is bounded that I can introduce limit from the sequence of sets.
李鍾傑 忠州大學校 1986 한국교통대학교 논문집 Vol.20 No.1
This paper developed systematically the theory of integer using axiom based on set, and examied the relation of eguality. Introducing the found rules of arithmetic operation on the basis of set theory and examining their properties, this paper constructed a system of integer. I hope this paper Will help do logical thinking in using the integer and grope for desirable teaching method.
李鐘傑 忠州大學校 1997 한국교통대학교 논문집 Vol.32 No.1
This paper developed systematically the theory of Fractional Expression using and based on set, and examined the relation of equality. Introducing the four rules of arithmetic operation on the basis of set theory and examining their properties, this paper constructed a system of Fractional Expression. I hope this paper will help think logically in using the Fractional Expression and grope for desirable teaching method.
李鍾傑 忠州大學校 1995 한국교통대학교 논문집 Vol.30 No.1
This paper developed systematically the theory of Complex number using based on set, and examined the relation of equality. Introducing the four rules of arithmetic operation on the basis of set theory and examining their properties, this paper constructed a system of Complex number. I hope this paper will hope do logical thinking in using the Complex number and grope for desirable teaching method.
李鍾傑 忠州大學校 1999 한국교통대학교 논문집 Vol.34 No.1
This paper has developed systematically the theory of continuous function based on the set theory, and examined the relation of uniformity. The theory analyzed the continuum of limit closely by converting the limit concept into function. I hope this paper will enable the reader to think logically when using the continuous function and find a desirable teaching method.
尹胄漢,李鍾傑 忠州大學校 1991 한국교통대학교 논문집 Vol.25 No.-
In 1986, R. Huff [3] showed that a Dunford integrable function is Pettis integrable if and only if T : X??→L(μ) is weakly compact operator and {T(K(F,ε))|F⊂X,F : finite and ε>0}={0}. In this paper, we introduce the notion of Bourgain property of real valued functions formulated by J.Bourgain [2]. We show that the class of pettis integrable functions is linear space and if f is bounded function with Bourgain property, then T : X??→L(μ) by T(x??)=X??f is weak??-to-weak linear operator. Also, If operator T : L(μ)→X?? with Bourgain property, then show that T is Pettis representable.
Lee, Jong-Geol,Park, Sunhoo,Bae, Chang-Hwan,Jang, Won-Suk,Lee, Sun-Joo,Lee, Dal Nim,Myung, Jae Kyung,Kim, Cheol Hyeon,Jin, Young-Woo,Lee, Seung-Sook,Shim, Sehwan Oxford University Press 2016 JOURNAL OF RADIATION RESEARCH Vol.57 No.3
<P>Radiation-induced lung injury (RILI) due to nuclear or radiological exposure remains difficult to treat because of insufficient clinical data. The goal of this study was to establish an appropriate and efficient minipig model and introduce a thoracic computed tomography (CT)-based method to measure the progression of RILI. Göttingen minipigs were allocated to control and irradiation groups. The most obvious changes in the CT images after irradiation were peribronchial opacification, interlobular septal thickening, and lung volume loss. Hounsfield units (HU) in the irradiation group reached a maximum level at 6 weeks and decreased thereafter, but remained higher than those of the control group. Both lung area and cardiac right lateral shift showed significant changes at 22 weeks post irradiation. The white blood cell (WBC) count, a marker of pneumonitis, increased and reached a maximum at 6 weeks in both peripheral blood and bronchial alveolar lavage fluid. Microscopic findings at 22 weeks post irradiation were characterized by widening of the interlobular septum, with dense fibrosis and an increase in the radiation dose–dependent fibrotic score. Our results also showed that WBC counts and microscopic findings were positively correlated with the three CT parameters. In conclusion, the minipig model can provide useful clinical data regarding RILI caused by the adverse effects of high-dose radiotherapy. Peribronchial opacification, interlobular septal thickening, and lung volume loss are three quantifiable CT parameters that can be used as a simple method for monitoring the progression of RILI.</P>