On the main Topics of Environ-Ethics

사람들은 인간을 포함한 생명체 및 무생물의 자연에 대해 일정한 태도와 관계를 갖는다. 그것은 생명관, 혹은 자연관이라는 말로 표현된다. 경윤리는 생물학의 한 분야인 생태학에 관한 철학(혹은 윤리학)이 아니라 생태계 위기, 환경 파괴에 직면한 인류가 생명가치, 자연물의 가치를 고 할 수 있는 환경친화적이고, 생태지향적인 규범 설정 및 그 가능성과 타당성을 탐구하는 윤리학의 한 분야 이다. 그러기 위해 기왕의 규범적 이론과 원칙을 확대하여 동물보호, 자연보호, 환경보호의 원칙을 세우고, 나아가서 올바른 환경윤리적 의사결정을 위한 환경윤리교육의 이론적 토대를 만들어 가는 새로운 연구 영역 이라고 정의할 수 있겠다

Active-site determination by site-directed mutagenesis of Saccharomyces cerevisiae geranylgeranyl protein transferase type I expressed in E. coli

Thesis (master`s)--서울대학교 대학원 :화학과 생화학전공,1995.Maste

Separatrix를 포함하는 일반적인 형태의 토카막 플라즈마의 입자 시늉

학위논문(박사) - 한국과학기술원 : 물리학과, 2004.8, [ iv, [121] p. ]To study the ion transport in the edge of a diverted tokamak plasma, an X-point Guiding Center (XGC) code is developed, which is a discrete plasma particle simulation code of ions in a diverted edge with kinetic neutral particles. A self-consistent electric field is evaluated and conserving Monte-Carlo collisions are used. calculated simultaneously. Using the XGC code the property of a velocity space hole due to vanishingly small poloidal magnetic field in the vicinity of a divertor X-point is studied in a single null geometry. The velocity space hole occupies a significant portion of the main ion velocity space in the absence of an electric field, but a radial electric field shifts the velocity hole to a higher energy and suppresses the loss, especially on the midplane.On the outside midplane, it is found that there is virtually no v-space hole with a reasonable radial electric field. A forward ∇B drift case is compared with a backward ∇B drift case, only to find that there is little difference in the loss hole size in the velocity space. However, the forward ∇B plasma occupies a much larger loss volume in real space due to flux expansion near the X-point. The steep neoclassical pedestal formation in a quiescent tokamak is also investigated. It is shown that the width of the steepest neoclassical pedestals is similar to an experimentally observed H-mode edge pedestal width. It is also shown that a steep neoclassical pedestal can form from an L-mode profile at a quiescent diverted edge by with the neutral ionization. The suppression of the steep pedestal and the strong radial E-field by a simply modeled turbulence is observed. The effect of fueling location on the toroidal flow is investigated. The simulation result is that the neutral fueling from the high field side location gives more toroidal rotation than that from the low field side, which agrees with the experimental observation that the high field side fueling allowed an easier H-mode access. For a more...한국과학기술원 : 물리학과

Filter shape effects on subgrid scale modeling using an iterative averaging method

학위논문(석사) - 한국과학기술원 : 물리학과, 1998.2, [ ii, 47 p. ]한국과학기술원 : 물리학과