sensitivities can be obtained (in the attogram regime), overcoming other similar and well-known mass detectors, such as the quartz crystal microbalance (QCM).[5] In first approximation cantilevers behave like a harmonic oscillator, and the mass change on a rectangular cantilever will produce a reduction on the resonance frequency, which can be estimated from:
where f0 and f1 are the fundament
5.2 Drug Delivery System
5.2.1 Advantage of Nano-drug delivery system
By diagnosis, and for treatment, we need enhanced drug delivery system. Drug delivery system of these days is just eat and let it flow through the body. It is not good at efficiency. Because the digestive system sometimes digest and remove the drug before it reaches to the target.
For enhancing the efficiency of drug
Airport management, in common with others involved in the operation of elements of the civil air transportation system, are required to take measures that will provide a high level of protection of buildings and equipment (including aircraft), in addition to ensuring the safety and personal security of passengers and staff using the system. This must be done in manner that disturbs the normal ope
sensitive aviation areas. Both as a whole, and at individual facilities, security operations are tested, evaluated, and modified to assure adequate performance standards.
Reviews of this nature must be carried out by qualified security officers and operations personnel, and assessments should include information on the severity of any deficiency and how it relates to airport security as a whol
혼합된 시료성분이 이동상 과 고정상 사이를 흐르면서 흡착, 분배, 이온교환 또는 분자크기 배재작용 등에 의해 각각의 단일 성분으로 분리되는 것을 말한다. 분리, 정성, 정량 등의 분석목적과 분리,정제,분취 목적에 이용된다.
1. Pump의 요건
a. 일정한 유속과 압력 유지.
b. 가동이 쉽고 다양한 용매를