Experiments performed in the field of IR laser-induced oxidation of metals and their theoretical explanations are reported. Temperature variations in time of irradiated metallic samples have been recorded with a PC ba...
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Experiments performed in the field of IR laser-induced oxidation of metals and their theoretical explanations are reported. Temperature variations in time of irradiated metallic samples have been recorded with a PC based system capable of evaluating the absorptivity variation function (A(T)) from recorded data. Measurements have been carried out on metals such as vanadium, nickel, tantalum and cobalt at various experimental conditions (power of irradiation, times of exposure, sample size, etc.). Some negative, though mostly positive, feedback existence between thermal and optical degrees of freedom is observed, resulting in stochastic chaotic-type temperature oscillations.
The nonlinearprogramming method is used to study the finite-thrust minimum-time orbital interception problem. Considering the spacecraft with fixed impulse, the Modified Equinoctial Elements are used to describe the ...
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In this paper, aerodynamic control surfaces of reusable launch vehicle (RLV) in reentry phase were converted into a constrained optimization problem, and using a mixed linear programming algorithm to solve them. For n...
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The first use of UG modeling tool to complete the shark 3D modeling;then using UG software to complete the automatic programming automatic programming function, and generates 3 axis machining program, then use the Yul...
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ISBN:
(纸本)9783037854099
The first use of UG modeling tool to complete the shark 3D modeling;then using UG software to complete the automatic programming automatic programming function, and generates 3 axis machining program, then use the Yulong NC simulation software for NC machining simulation, validation procedures for the procedure to import CNC machine tool by processing, difficulty of shark processing fashion clamp design and processing.
In this paper we show the applicability of the Dual Heuristic programming (DHP) method of Approximate Dynamic programming to parameter tuning of a fuzzy control system. DHP and related techniques have been developed i...
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In this paper we show the applicability of the Dual Heuristic programming (DHP) method of Approximate Dynamic programming to parameter tuning of a fuzzy control system. DHP and related techniques have been developed in the neurocontrol context but can be equally productive when used with fuzzy controllers or neuro-fuzzy hybrids. We demonstrate this technique on a highly nonlinear2nd order plant proposed by Sanner and Slotine. Throughout our example application, we take advantage of the TS model framework to initialize our tunable parameters with reasonable problem specific values, a practice difficult to perform when applying DHP to neurocontrol.
In the embedded field, FAT32 file system with high portability and flexibility is needed to apply to a variety of hardware storage devices. Therefore, a file system design that meets the requirements is adopted. The w...
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The proceedings contain 20 papers. The topics discussed include: plasmonic microdevices for terahertz frequencies;THz emission efficiency of grating-outcoupled nonlinear-mixing heterolas;using terahertz cascade lasers...
ISBN:
(纸本)9781424482955
The proceedings contain 20 papers. The topics discussed include: plasmonic microdevices for terahertz frequencies;THz emission efficiency of grating-outcoupled nonlinear-mixing heterolas;using terahertz cascade lasers for determination of optical losses in active medium of silicon intracenter lasers;application of high power terahertz sources to nonlinear spectroscopy of direct bandgap semiconductors;a compact THz source for imaging and spectroscopy;optically driven tuning of gain spectra in quantum-cascade structures;the ability of CW operation of THz lasing from group-V donors in silicon;technique of measuring the effective constitutive parameters of metamaterials;proteins vibrations in THz frequency domain;terahertz properties and the negative dielectric regions in boron nitride;and THz multifunctional quasi-optical measuring system for education and science.
Effective utilization of the increasingly heterogeneous hardware in modern supercomputers is a significant challenge. Many applications have seen performance gains by using GPUs, but many implementations leave CPUs si...
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Dynamic programming (DP) has been widely used as an approach solving the Markov Decision Process problem. This paper takes a well-known gambler's problem as an example to compare different DP solutions to the prob...
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ISBN:
(纸本)038723151X
Dynamic programming (DP) has been widely used as an approach solving the Markov Decision Process problem. This paper takes a well-known gambler's problem as an example to compare different DP solutions to the problem, and uses a variety of parameters to explain the results in detail. Ten C++ programs were written to implement the algorithms. The numerical results from gamble's problem and graphical output from the tracking car problem support the conceptual definitions of RL methods.
For a number of years,the civil society has been pressing governments to produce machine-readable presentations of the collected *** of the ultimate Open Government Data(OGD) goals is to aid developers develop mobile ...
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ISBN:
(纸本)9781509036202
For a number of years,the civil society has been pressing governments to produce machine-readable presentations of the collected *** of the ultimate Open Government Data(OGD) goals is to aid developers develop mobile applications that can improve citizen's live and also enhance the country's economy and support smart cities *** applications form a powerful channel to serve and reach businesses and *** aim of this study was to determine the status of the UAE OGD usability within the mobile application development by reviewing the usability factors to develop mobile application and assess the OGD *** assessment instrument was designed based on the reviewed usability factors,to assess the UAE OGD *** this study it was clear that the major factors in mobile application development usability by OGD are data completeness,data format and support for developers by offering Application programming Interface(API) and guides,majority of datasets were found to be complete an indication that UAE OGD has a strong point in data ***,the current UAE OGD does not encourage the developers to build mobile applications because of lack of data format support and missing of API and *** to improve the current UAE OGD have been proposed based on the results of this research.
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