좌표계를 단위 셀의 한 모서리를 원점으로 만들고 이 원점과 접하고 있는 세 변은 오른나사 법칙에 따라 x, y, z축이 결정되며 각 변의 길이가 단위 길이가 된다. 이처럼 3개의 각도와 3개의 변의 길이로서 단위 셀의 모양을 결정한 결정구조를 결정계(Crystsl System)라고 하며 7가지의 결정계가 존재한다.
cells, assisted
reproductive technologies, abortion, euthanasia,
capital punishment, funding of the health care
system and research ethics.
Assume that two core features characterize
the kind of societies we are discussing
1. They are morally pluralistic
- There is a variety of views concerning
the moral issue at hand
2. They are liber
stemic drug. Therefore, normal cells are also regarded as cancer cells and become treated. Normal cells are attacked by chemical-drug, and then many cells are damaged. It brings out many side effects. The patient gets a lot pain when he or she receives anticancer treatments
2. Drugs Detecting Receptors on Cancer Cell’s Surface
The receptors, which is important to cancer targeting, exist not o
1. 성호르몬이란?
성호르몬은 종족의 유지에 중요하며, 웅성 또는 자성 생식기관의 발달 및 그 기능을 발현시킨다. 정소에서는 testosterone이 만들어지는데, 그 작용에 따라 androgen이라는 이름이 사용된다. 이 호르몬의 개체전반에 대한 비특이적 작용의 하나로서 단백질합성을 촉진시키는 것을 들 수 있
WHAT IS A SOLAR CELL?
Devices that convert solar energy to electric energy.
WHAT IS PHOTO ELECTRIC EFFECT?
The photoelectric effect is a phenomenon in which electrons are emitted from matter as a consequence of their absorption of energy from electromagnetic radiation of very short wavelength, such as visible or ultraviolet light
Absorption and generation of exciton
Dissociation and
① 식 재료 및 조리식품의 Staphylococcus aureus 오염실태
식육은 S. aureus 식중독 발생의 주요한 원인식품이다. 강호조 등(1997)의 연구에 의하면, 오염된 냉동 우육을 22℃에서 12시간 해동하는 동안 2.37 logCFU/g 이상 증가하고, 25∼30℃에서 5시간이면 식중독을 일으키는데 충분한 독소를 생성하며, 생성된 enterot
Anode :
state-of-art anodes are made of a Ni-Cr/Ni-Al alloy.
The Cr was added to eliminate the problem of anode sintering.
Sintering :
The particles grow faster at higher temperatures in low CO2 gas atmospheres, and in strongly basic melts
Cathode :
An acceptable material for cathode must have adequate electrical conductivity, structural strength, and low disso
The crystal structure is a member of the hexagonal crystal system and consists of tetrahedrally coordinated Zinc and Sulfur atoms that are stacked in an ABABAB pattern.
The structure is closely related to the structure of lonsdaleite, or hexagonal diamond.
As there all orientations of the crystal, rings of different 2θ values are formed
A single crystal specimen in a Bragg-Brentano diffrac