排序方式: 共有54条查询结果,搜索用时 31 毫秒
41.
Jakubowski J Kwiatos K Chwaleba A Osowski S 《IEEE transactions on bio-medical engineering》2002,49(2):152-159
42.
Osowski M.L. Cockerill T.M. Lammert R.M. Forbes D.V. Ackley D.E. Coleman J.J. 《Photonics Technology Letters, IEEE》1994,6(11):1289-1292
Three-step selective area metalorganic chemical vapor deposition is used to fabricate strained layer InGaAs-GaAs-AlGaAs single quantum well broad spectrum LEDs. We have fabricated a device with a continuous variation in quantum well thickness along its length by using a tapered oxide width mask for the active region regrowth. A spectral emission width of 80 nm is obtained 相似文献
43.
A simplified Coates flow-graph technique, applied to the analysis of an arbitrary active network, is presented. Flow-graph representations of building blocks of active networks are given, which permit construction of the graph from the given network. A flow-graph formula for the sensitivity investigation is also given. 相似文献
44.
Osowski S. Linh T.H. Brudzewski K. 《IEEE transactions on instrumentation and measurement》2004,53(3):638-644
This paper presents the neuro-fuzzy Takagi-Sugeno-Kang (TSK) network for the recognition and classification of flavor. The important role in this process fulfills the self-organizing process used for the creation of the inference rules. The self-organizing neurons perform the role of clustering data into fuzzy groups with different membership values (the preprocessing stage). Applying the automatic control of clusters, we have the optimal size of the TSK network. The developed measuring system has been applied for the recognition of flavor of different brands of beer. The fuzzy neural network is used for processing signals obtained from the semiconductor sensor array. The results of numerical experiments have confirmed the excellent performance of such solutions. 相似文献
45.
There is an increasing interest in solving temporal planning problems. Identification and propagation of mutual exclusion
relations between actions can significantly enhance the efficiency of a planner. Current definitions of mutually exclusive
actions severely restrict their concurrency. In this paper, we report on thirteen groups of permanently mutually exclusive
PDDL 2.1, Level 3 actions. We report on sixteen types of potentially-conflicting interactions between two actions where concurrency
may be maximized by adjusting starting time of one of the two actions. We discuss several examples where actions can overlap
despite conflicting preconditions and/or effects. The processes executing these actions are mostly independent. We report
on a new domain-rewriting technique called “baiting” in order to improve the concurrency in temporal plans. Baiting actions
lure a temporal planner into improving concurrency. The technique involves splitting user-identified operators. We report
on three types of baiting (standard, double and nested) and show their suitability for various types of action interactions.
Baiting requires minimal modification to the planning code. Baiting does not increase the branching in search trees. Baiting
does not affect the soundness and completeness of a temporal planner. Our empirical evaluation shows that the makespans of
plans generated by efficient planner Sapa with baited domain are significantly lower than makespans of plans generated without
baiting. 相似文献
46.
Utilization of Biogenic Solids in Gasifiers As a result of shrinking fossil fuels biomass as a regenerative energy source gains in importance. To realize biomass projects it is essential to investigate convenient thermal procedures. On this evidence an analysis and evaluation of diverse gasification technologies with different boundary conditions and diverse biomasses is indispensable. Form and kind of the biomass as well as the type of the gasification plant cause different compositions of the product gas. The gasifiers show advantages and disadvantages concerning the biomass and the produced gas quality, depending on reactor type, kind of heat supply, gasification medium, and the pressure ratio in the reactor. As the ideal gasifier for different biomass is presently not available it will be shown which biomass is suitable for fixed bed or fluidised bed gasifiers. 相似文献
47.
48.
Osowski M.L. Lammert R.M. Forbes D.V. Ackley D.E. Coleman J.J. 《Electronics letters》1995,31(17):1498-1499
Three-step selective-area metal organic chemical vapour deposition is used to fabricate a strained layer InGaAs-GaAs-AlGaAs single quantum well broad spectrum LED with an integrated absorber. A tapered oxide width mask pattern is used for the active region regrowth to produce an edge emitting device with a continuous variation in the quantum well thickness and composition along its length. A maximum spectral width of 165 nm is obtained 相似文献
49.
50.
Lammert R.M. Smith G.M. Forbes D.V. Osowski M.L. Coleman J.J. 《Electronics letters》1995,31(13):1070-1072
Design, fabrication, and operation of strained-layer InGaAs-GaAs-AlGaAs buried-heterostructure (BH) lasers with nonabsorbing mirrors fabricated by selective-area epitaxy (SAE) are presented. The SAE-BH lasers with nonabsorbing mirrors operate at powers up to ~325 mW/facet (4 μm wide output aperture), which is a >40% increase over conventional SAE-BH lasers 相似文献