Experiments in vhich the powers of tvo SLAC klystrons vere combined and fed into a resonant cavity pulse-compression system (SLED) are described. Pulse povers up to 65 MU into SLED vere reached. The corresponding instantaneous peak power out of SLED vas 390 MU. After normal initial aging, no persistent RF breakdown problems were encountered. X-radiation at the SLED cavities vas generally less t...

We assess the question whether the SLED (Supersymmetric Large Extra Dimensions) model admits phenomenologically viable solutions with 4D maximal symmetry. We take into account a finite brane width and a scale invariance (SI) breaking dilaton-brane coupling, both of which should be included in a realistic setup. Provided that the brane tension and the microscopic size of the brane take generic v...

S/SL is a compiler-writing tool that was designed in the late 70’s at the University of Toronto. For a time, it was actively developed and enhanced within the IBM Toronto Lab. Widespread interest in the tool within IBM disappeared in the late 80’s, and other tools became more prevalent. In 1991, when we began a new COBOL compiler, ILE COBOL/400 [1], we chose to resurrect the S/SL technology, an...

This paper considers the use of an all-fiber Mach–Zehnder interferometer (MZI) to equalize the output spectrum of a super-luminescent light emitted diode (SLED). A minimax approach and a window integration approach are proposed to design spectrum equalization filters with pre-specified performance indices. To present the proposed design approaches, a single stage MZI is used as an illustrative ...

Despite of the fact that large line segment datasets are appearing more and more frequently in numerous applications involving spatial data, such as GIS 8, 9] multime-dia 6] and even traditional databases, most of the analysis for estimating the selectivity of window queries posed on spatial data {the most important parameter for query optimization{ has focused on point or region data only. In ...

The normal energy gain of the SLC RF system, using SLED (SLAC Energy Development) cavities, can accelerate only about 150 ns beam pulse within an energy spread of 0.5 % with 1011 particles per pulse. By applying two additional 180o phase inversions for about 20 % of all SLC klystrons, the classical SLED pulse is flattened to achieve an energy spread of 0.5 % over 240 ns which corresponds to 680...

Archival data on the CD-R, which has been explosively popularized in the past five years, cannot be read with DVD-ROM drives or upcoming Blu-ray disc drives if these drives are equipped with a single laser of 650 nm or 405 nm in wavelength. To overcome this inconvenience inevitable in the near future, we developed a new class of recordable opt ica l d isc memories in collaborat ion with DENSO C...

Spinal cord modularity impacts on our understanding of reflexes, development, descending systems in normal motor control, and recovery from injury. We used independent component analysis and best-basis or matching pursuit wavepacket analysis to extract the composition and temporal structure of bursts in hindlimb muscles of frogs. These techniques make minimal a priori assumptions about drive an...

Two types of prime movers are continuously applied for rotating machinery: mechanical and electric drives. This tutorial focuses on electric drives, which are actually composed of separate components: electric motor, frequency converter (optional), and electric network including transformers. The main aim of this tutorial is to explain the phenomena of electric drives related to the torsional v...

Model predictive control (MPC) technology for multi-phase electric drives has received increasing attention in modern industries, especially vehicles, marine electrical propulsion, and wind power generation. However, MPC several challenges controlling drives, including the design of weighting factors, high computational complexity, large harmonic currents, heavy reliance on system model, fault-...