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The component dynamic reliability index (CDRI) for the multi-state system is transplanted to human reliability domain, and used to evaluate the importance of performance shaping factors (PSF). The concepts about PSFs and CDRI are overviewed firstly. The importance of some PSF, namely, CDRI is the probability of human error probability (HEP) changing from one level to another level caused by the PSF's...
A low cost high-efficient microstrip line fed antenna for 60 GHz communications is presented. An investigation for microstrip antenna presently being working at lower microwave frequency has been done for 60 GHz communication. A new geometry has been presented in form of H shaped design with feeding from microstrip line. The results have been simulated using high frequency structural simulator (HFSS)...
A novel substrate integrated waveguide (SIW) Hplane horn antenna with additional split-ring and dielectric structures has been proposed in this paper. This antenna operates at 27 GHz with a simulated gain of 10.2 dBi. It presents reduced side-lobes compared to the traditional SIW horn antenna. Fed by a coaxial connector and realized on AR450 PTFE based laminate, it is affordable, easy to fabricate...
The multi-target location in bistatic MIMO radar under the colored noise is studied in this paper, and a two-stage sparse representation (TSR) method for joint DOD and DOA estimation is proposed. This method obtains the signal subspace by eigenvalue decomposition of the fourth-order cumulants (FOC) matrix. Then, based on the redundant dictionary refined gradually, a sparse linear model is constructed...
Shelter is the loading platform for the electronic equipment and the operator, the space of the traditional shelter can not satisfy the large-scale command post and the field hospital's requirement. An original combined shelter is introduced in this paper, which is composed of two lateral jointed expandable shelters, a common shelter, a passageway and a tent. It can be expediently extended by increasing...
Recent advances in the development of trace gas sensors based on the use of quantum cascade lasers (QCLs) for the sensitive, selective detection, quantification and monitoring of small molecular gas species with resolved spectroscopic features will be described. High detection sensitivity at ppbv and sub-ppbv concentration levels requires detection sensitivity, enhancement schemes such as multipass...
Copper wire bonding offers several mechanical and electrical advantages as well as cost saving compared to its gold wire predecessor. In the recent years, driven by the increasing price of gold, copper wire material and copper wire bonding process are widely researched for the high end IC packaging in the IC assembly area. In this paper, characterization work has been done in order to understand how...
Based on the effective heuristic algorithm and critical chain method proposed by predecessors, the paper presents ACE-Critical chain method for the resource-constrained project scheduling problem. First, ACO searches the solution space and generates activity lists to provide the critical chain for critical chain method; then critical chain method applies the project buffer and project flexible coefficient...
We presemt a novel and compact six-mirror cavity configuration to combine four beams intracavity for energy scaling. A single beam output exceeding 453 mJ with 165??s duration is obtained, with the combination efficiency of 90.7%.
CAE techniques have, in recent years, become increasingly popular in plastic injection molding. However, in most practices, either molding parameters are not optimized or the optimization techniques are too complex to use. In this paper we discuss a fully automatic approach of integrated injection molding parameter optimization and simulation (IMPOS) to plastic injection molding problems. A working...
W18O49 nanotip arrays were prepared by a two-step high-temperature, catalyst-free physical evaporation deposition process in high-purity argon gas. The prepared products were characterized by scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy. Field emission measurements were carried out with a transparent...
Misbehaviors (e.g. ringing loudly in the middle of a lecture) of mobile phone systems have been increasingly become a disturbing and almost hazard social phenomena. This is simply because existing mobile phone systems including those so called smart-phones do not have a proper computational mechanism which enables them to dynamically adjust their behaviors according to specific contexts (the user...
High dose Ge+ ions were implanted into SIMOX substrates to synthesize SiGe alloys. These samples were evaluated by using RBS channeling and XTEM. The dose of implanted Get effects strongly the density of defects remaining in the surface SiGe layer. At a dose of 1.6??1016 Ge+ cm??2, SiGe layer with a very good crystallinity could be achieved through annealing at 950??C for 1h.
The sum of two normalized Pearson IV distributions has been used for describing the high energy implantation profiles with boron and phosphorus into crystalline silicon. The required range parameters for this description were extracted by fitting them to experimental SIMS-profiles. The number of range parameters can be reduced to five for both of boron and phosphorus.
With a novel delineation technique, the increase in dopant concentration due to ions which have been scattered out of a vertical mask edge during ion implantation was demonstrated. The equiconcentration lines show that the implanted concentration near the mask edge is greater than that in the middle of the implantation window. This effect could be simulated qualitatively with a Monte Carlo simulation...
For the measurement of dopant concentrations in two dimensions (2d), a delineation technique has been optimized. The method yields up to three dopant equiconcentration lines in one sample. The concentrations of these lines can be changed by modification of the etching conditions. This technique is applied to the investigation of 2d ion implantation profiles.
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