http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이대환(Dae Hwan Lee) 밴쿠버기독교세계관대학원 1992 통합연구 Vol.5 No.2
The 25th chapter of Leviticus deals with the economic system. Leviticus emphasizes the sanctified life. In the former part of the 25th chapter, there is a regulation about nature or land. When we scrutinize that part, paradoxical contents are found here and there. So we are embarrassed by that. First, while man does not do production activity, land(nature) bears products. Second, the Bible tells people not to reap these land products but is displays some usages of them. Third, the Bible allows people the dealings of the land. On the other hand it forbids poeple to deal it. Fourth, there is a redemption to the land which is determined to be dealed. The attempt to approach this paradoxical meaning is the key point of my writing. The fact that products exist while production activity is not done means the existence of natural value. And the fact that the Bible decrees the usage but it does not allow people private possession of the value but it allows people public possession. The permission and forbidding of the land dealing means the marketing function of land distribution must be committed to rent and the land price must be extinct. The redemption system is aimed at preventing monopoly over property in land and using right of the land, which is the necessity goods for survival and production. But the previous economic system based on labor value theory or utility value theory causes various economic problems because it overlooked the land`s properties. And also it causes social problems derived from the economic problems. So, The core of land problems and economic problems is in the overlook of the existence of natural value and the overlook of land value including natural value. When the natural value mentioned in the Bible reverts to public possession, most of economic problems will be solved, I think. This is the central idea and theory system of land value taxation which asserts that if rent is taxed, all other taxes are extinct.
주파수 특성이 향상된 커패시터 멀티플라이어 설계 및 제작
이대환(Dae-Hwan Lee),백기주(Ki-Ju Back),한다인(Da-In Han),유병선(Byoung-Son Ryu),김영석(Yeong-Seuk Kim) 대한전자공학회 2013 전자공학회논문지 Vol.50 No.4
본 논문에서는 주파수에 대해 영향을 적게 받는 커패시터 멀티플라이어를 제안하였다. 기존의 커패시터 멀티플라이어는 주파수에 대해 커패시턴스 변화가 크다는 단점이 있다. 반면에, 제안된 커패시터 멀티플라이어는 캐스코드 구조를 이용하여 주파수 변화에 대해서 커패시턴스 변화가 작은 특성을 갖도록 개선하였다. 기존의 커패시터 멀티플라이어와 제안된 커패시터 멀티플라이어를 삼성 0.13m CMOS 공정을 이용하여 제작하고, LPF를 구성하여 특성을 측정하였다. 주파수 100kHz에서 1MHz까지 측정한 결과, 기존의 커패시터 멀티플라이어는 최대 53% 오차를 보이는 반면에, 제안된 커패시터 멀티플라이어는 10% 이내의 오차를 보여, 향상된 주파수 특성을 가짐을 확인하였다. In this paper, a capacitor multiplier with good frequency characteristics has been proposed. Effective capacitance of conventional capacitor multiplier decreases as frequency increases due to internal series resistance. On the other hand, the proposed capacitor multiplier using cascode structure has smaller internal resistance, thus shows good frequency characteristics. Conventional and proposed capacitor multiplier were fabricated using Samsung 0.13m CMOS process and frequency characteristics of capacitor multipliers were measured using LPF. Measurement results show that the conventional capacitor multiplier has maximum 53% of capacitance error, however the proposed multiplier has less than 10% of capacitance error for the frequency change from 100kHz to 1MHz.
Native-V<sub>th</sub> MOSFET을 이용한 셀프-캐스코드 구조의 아날로그 성능 분석
이대환,백기주,하지훈,나기열,김영석,Lee, Dae-Hwan,Baek, Ki-Ju,Ha, Ji-Hoon,Na, Kee-Yeol,Kim, Yeong-Seuk 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.8
The self-cascode (SC) structure has low output voltage swing and high output resistance. In order to implement a simple and better SC structure, the native-$V_{th}$ MOSFETs which has low threshold voltage($V_{th}$) is applied. The proposed SC structure is designed using a qualified industry standard $0.18-{\mu}m$ CMOS technology. Measurement results show that the proposed SC structure has higher transconductance as well as output resistance than single MOSFET. In addition, analog building blocks (e.g. current mirror, basic amplifier circuits) with the proposed SC structure are investigated using by Cadence Spectre simulator. Simulation results show improved electrical performances.