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The present highway bridge management which to a large extent relies on managers and technical personnel's experience is incompatible with the information age. The highway bridge management departments must rely on modern management thinking and advanced means of information processing. The highway bridge management information system taking Delphi evaluation as support model integrates data management,...
A class of ultra-wideband microstrip-line bandpass filters with improved out-of-band performance and miniaturized size is proposed and constituted using electromagnetic-bandgap (EBG) embedded multiple-mode resonator (MMR). This EBG- embedded MMR is at first studied, aiming to relocate its first three resonant modes within the 3.1-10.6GHz UWB passband while inhibiting its 5th resonant mode in the upper...
Our objective was to determine the most energy efficient 64 b static CMOS adder architecture, for a range of high-performance delay targets. We examine extensively carry-lookahead (CLA) and carry-select adders with a wide range of tradeoffs in logic levels, fanouts and wiring complexity. We propose sparse CLA adder architectures based on buffering techniques to reduce logic redundancy and improve...
In this work, a short-open calibration technique is extended for field theory-based parametric extraction of planar discontinuities with nonuniform feed lines in the platform of full-wave method-of-moments. As a planar discontinuity is analyzed with respect to the planes of impressed sources, each individual nonuniform feed line is modeled as a general error box relying on the perfect short-and open-circuit...
A novel ultra-wideband (UWB) bandpass filter with improved upper-stopband performance is presented and constituted by integrating an initial UWB filter with two lowpass filters at its two sides. Firstly, a multiple-mode resonator is formed with first three resonant frequencies located within the 3.1-10.6 GHz UWB band while its two-side high-impedance sections are excited by two interdigital coupled...
TF-IDF formula can represent effectively the text characteristics; the immunity system (TIS) has many characteristics, including the distributional protection, multiplicity, auto-adapted in the information processing, it is robust and expansibility, memory ability, fault-tolerant ability, dynamic stability as well as exceptionally examines. The paper analyzes characteristics of many illegal emails...
Power requirement is one of the most important process parameters in cylindrical traverse grinding. Due to the inherent complexity of the process, it may be difficult to derive the exact mathematical expression of the input-output variables relationships. An expert system is developed in this paper, based on the fuzzy basis function network (FBFN) to predict power requirement in grinding process....
Multisection vialess baluns are proposed by cascading several lambda/4 edge-coupled lines. Without needing any via-hole or ground connection, these vialess baluns are simply implemented on microstrip structures. With the backside aperture, the even-mode impedance of coupled microstrip lines is raised beyond 280 Omega. Taking advantage of multisection coupled line approach, the eventual even-mode impedance...
Homoepitaxial growth of unintentional doped, nitrogen (N) doped n-type, and boron (B) doped p-type 4H-SiC epilayers on off-oriented n-type and semi-insulating Si-face (0001) substrates was performed in a horizontal hot-wall chemical vapor deposition (HW-CVD) reactor with SiH 4 and C2H4 at temperature of 1500 degC and pressure of 40 Torr. The electrical and structural properties, and intentional in-situ...
This work presents the fully lumped element model for wideband on-chip interconnects, with large scalability of line lengths up to 8000 mum, and widths down to 100 nm. Both the series and the shunt lumped elements of the model are determined based on the frequency asymptotic technique without any optimization. The equivalent lumped circuit is derived and verified to accurately recover the frequency-dependent...
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