http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Jin, Ho,Nam, Jutaek,Park, Joonhyuck,Jung, Sungho,Im, Kyuhyun,Hur, Jaehyun,Park, Jong-Jin,Kim, Jong-Min,Kim, Sungjee Royal Society of Chemistry 2011 Chemical communications Vol.47 No.6
<P>A series of quantum dot (QD) ligands are reported that can make strong polyelectrolyte QD surfaces with sulfonates or quaternary ammoniums, which can endow QDs with excellent colloidal stability independent of the pH and ionic strength, minimal hydrodynamic size, and can be exploited to achieve stable and flexible bioconjugations and layer-by-layer assembly.</P> <P>Graphic Abstract</P><P>Strong polyelectrolyte quantum dot surface ligands with sulfonates or quaternary ammoniums are reported that can provide excellent colloidal stability, minimal hydrodynamic size, and applicability to stable and flexible bioconjugations and layer-by-layer assembly. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0cc04524a'> </P>
Time Delay Control Using the Outputs of a State Observer
Jaehyun Jin 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-
This article shows the application of time delay control (TDC) using an observer. An observer is used to relax one of conditions for the design of TDC. It is shown that if we use an observer, we can design a time delayed controller even though an original system does not satisfy a design condition which is explained in the body of this article. It means that if a system is observable and has no unstable transmission zeros, the design of a time delayed controller is always possible. The proposed method is also used to control the attitude of a rotor system.
Reconfiguration of Redundant Thrusters by Allocation Method
Jaehyun Jin,Minjea Tahk 한국항공우주학회 2005 International Journal of Aeronautical and Space Sc Vol.6 No.2
Thrusters are important actuators where air is rare. Since the maintenance or replacement of thrusters is not easy in such an environment, a thrusting system must be highly reliable. Redundant thrusters are used to meet the reliability requirement. In this paper, a reconfiguration problem for those redundant thrusters is discussed, especially the management or distribution logic of redundant thrusters is focused on. The logic has to be changed if faults occur at thrusters. Reconfiguration is to change the distribution logic to accommodate thrusters' faults. The authors propose a reconfiguration algorithm based on the linear programming method. The authors define the reconfiguration problem as an optimization problem. The performance index is a quantity related with total fuel consumption by thrusters. This algorithm can accommodate multiple faults. Numerical examples are given to show the advantage of the proposed algorithm over existing methods.