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We develop two-channel sampling theory in the wavelet subspace V 1 from the multi resolution analysis {Vj } j ∈𝕫. Extending earlier results by G. G. Walter [11], W. Chen and S. Itoh [2] and Y. M. Hong et al [5] on the sampling theory in the wavelet or shift invariant spaces, we find a necessary and sufficient condition for two-channel sampling expansion formula to hold in V 1.

This study was attempted to quality characteristics of ginseng powder using molecular press dehydration(MD) method. Ginseng powder was dried using maltodextrin as dehydrating agents, and the quality of the ginseng powder was compared with that of freeze-drying and hot air-drying samples in terms of colors, moisture contents and grain size. The colors of ginseng powder using MD-drying and freeze-drying was better than hot air-dried ginseng powder. The moisture contents of ginseng powder using MD-drying was 9.49%, while freeze-drying was 4.14% and hot air-drying 11.71% after 72ball mill times. The grain size of ginseng powder using MD-drying and freeze-drying was better than hot air-drying ginseng powder. These results suggest that drying of ginseng powder using molecular press dehydration method is very efficient, because minimal cell destruction may be achieved.

The Korea Superconducting Tokamak Advanced Research (KSTAR) project is the major effort of the national fusion programme of the Republic of Korea. Its aim is to develop a steady state capable advanced superconducting tokamak to establish a scientific and technological basis for an attractive fusion reactor. The major parameters of the tokamak are: major radius 1.8 m, minor radius 0.5 m, toroidal field 3.5 T and plasma current 2 MA, with a strongly shaped plasma cross-section and double null divertor. The initial pulse length provided by the poloidal magnet system is 20 s, but the pulse length can be increased to 300 s through non-inductive current drive. The plasma heating and current drive system consists of neutral beams, ion cyclotron waves, lower hybrid waves and electron cyclotron waves for flexible profile control in advanced tokamak operating modes. A comprehensive set of diagnostics is planned for plasma control, performance evaluation and physics understanding. The project has completed its conceptual design and moved to the engineering design and construction phase. The target date for the first plasma is 2002.

An input device is a communication method between human and telecommunication device. General public input devices include keyboard, mouse, and joystick. These input devices are used to communicate between humans and telecommunication devices. Many kinds of telecommunication device are emerging, including intelligent robots. We must develop adaptable input devices for many telecommunication devices and their applications. We have to consider, not only interface performance, but also fun and user experience, when developing the input devices for users. This paper proposes a position-based input device, embedding a new paradigm using an Infrared sensor array. Our Non-contact Input Device specification supports fun and the user experience when communicating between humans and telecommunication devices, including robots. Our non-contact type input device transmits commands to control mobile robots. It can also control Google Earth's map searching programs, and other applications.

We have performed Smoothed Particle Hydrodynamics (SPH) simulations in order to understand the dynamical structures of Galactic Center molecular clouds. In our study it was found that the structures of GC molecular clouds could be induced by the combined effects of a gravitational perturbation by rotating bar potential and the hydrodynamic collisions between the clouds.

To develop multi-tier model or enterprise architecture based distributed application needs to consider various aspects such as division of role between Web-designer and software developer, defining entity and its usage, DB connection and transaction processing etc. This paper presents DONSL (data server of non SQL-query) architecture that provides solution to above aspects through Web-tier object modeling. This is the architecture that guarantees the transaction processing and performance between Web-tier and DBMS through simplified usage of query logic property. This new conceptual framework also solves enterprise site implementation problems simplifying tier, and removing DAO and entity.

For a quasi-definite moment functional σ and nonzero polynomials A(x) and D(x), we define another moment functional τ by the relation D(x)τ = A(x)σ. In other words, τ is obtained from a by a linear spectral transform. We find necessary and sufficient conditions for τ to be quasi-definite when D(x) and A(x) have no nontrivial common factor. When τ is also quasi-definite, we also find a simple representation of orthogonal polynomials relative to τ in terms of orthogonal polynomials relative to a. We also give two illustrative examples when σ is the Laguerre or Jacobi moment functional.

20 pages, no figures.-- MSC2000 code: 42C05. MR#: MR1847402 (2002h:42049) Zbl#: Zbl 1034.42022 Given an orthogonal polynomial system $(Q_n(x))_{n=0} infty$, define another polynomial system by where αn are complex numbers and t is a positive integer. We find conditions for $(P_n(x))_{n=0} infty$ to be an orthogonal polynomial system. When t=1 and α1≠0, it turns out that $(Q_n(x))_{n=0} infty$ must be kernel polynomials for $(P_n(x))_{n=0} infty$ for which we study, in detail, the location of zeros and semi-classical character. The first author (KHK) was partially supported by the BK-21 project and KOSEF(98-0701-03-01-5). The second author (DWL) was partially supported by BK-21 project. The third author (FM) was partially supported by Dirección General de Enseñanza Superior (DGES) of Spain under grant PB96-0120-C03-01. The fourth author (SBP) was partially supported by the Hwarangdae Research Institute. Publicado

In this paper, we present a novel electrostatic discharge (ESD) protection device. When an ESD pulse attacks, this device is activated as either a reverse-biased punchthrough BJT or a forward-biased diode, depending on the polarity of the input pulse. Experimental results (based on the Human-Body Model) show that the new protection device is more efficient and area-effective than any other conventional one. It does not require any extra mask for its implementation because of the compatibility with established processes. Thus we believe that it is a viable approach for the protection of submicron CMOS/BiCMOS devices and circuits vulnerable to ESD stress.