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where (varphi_{s}) and (varphi_{f}) represent the solid and fluid properties, respectively, and (p) is the penalized factor.. Figure 2 compares the relative densities and their corresponding penalized material properties among initial, filtered, and projected fields. It can be found that many intermediate densities are generated in the filtered fields but then …
Näe rohkem >>Abstract: To efficiently and conveniently realize the topology design with many degrees of freedom (DoFs), this work proposes an inverse topological design method (ITDM) based on machine learning for frequency-selective-surface (FSS) structures from a novel perspective. In the proposed ITDM, the input is a set of desired $vert text{S}11vert $ curves, and the …
Näe rohkem >>The earliest literature on topology optimization involves layout problems. For example, Prager, Rozvany and others have studied layout optimization of truss structures, a problem which results in optimal designs with many thin, ‘truss-like’ members [1],...
Näe rohkem >>Pildid, videod ja helifailid Commonsis: Topoloogia: Alamkategooriad. Selles kategoorias on ainult järgmine alamkategooria. T. Topoloogilised ruumid (1 K, 6 L) Leheküljed kategoorias "Topoloogia" Järgmised 29 lehekülge on selles kategoorias (kokku 29). ...
Näe rohkem >>The energy consumption of information and communications technology networks is increasing rapidly as a result of the Internet expansion in reach and capacity. In this paper, we investigate energy-efficient physical topologies for backbone IP over wavelength-division multiplexing (WDM) networks. We develop a mixed integer linear programming model to …
Näe rohkem >>A cantilever beam with size 5×12×1 m 3, as shown in Fig. 1, is now discussed.The beam is fixed on the left side and loaded with a concentrated force F=15.6 kN at the middle of the right side.The design domain is discretized by 592 nodes uniformly distributed, 540 integration cells would be used according to the location of the nodes, and 2×2 Gauss …
Näe rohkem >>As the continuous in-depth research of sixth generation (6G) technology, the satellite networks in the Space-Air-Ground Integrated Network (SAGIN) have received more and more attention. However, since satellite nodes have the characteristics of limited resources and dynamic link switching, it is important to effectively save energy in satellite networks. …
Näe rohkem >>This paper addresses the optimal cable layout design of a collector system in a large-scale wind farm. The objective is the minimization of total trenching length which is the sum of lengths of all branches of the collector system tree. A graph-theoretic minimum spanning tree algorithm has been used as a starting algorithm, and improvements and …
Näe rohkem >>In this paper, we propose a sensitivity-free and multi-objective structural design methodology called data-driven topology design. It is schemed to obtain high-performance material distributions from initially given material distributions in a given design domain. Its basic idea is to iterate the following processes: (i) selecting material …
Näe rohkem >>Topology optimization techniques enable systematic design directly from the behavioral specifications. That is, the number of holes in the structure and its entire shape are obtained as an original new solution without relying upon human intuition.
Näe rohkem >>1230 L. Xia, P. Breitkopf K Global stiffness matrix k0 Element stiffness matrix with unit Young''s modulus ke Element stiffness matrix U Global displacement vector uA(ij) e Element displacement vector for load case ij 1 Introduction Topology optimization (Bendsøe and Kikuchi 1988)was first employed for the material design by Sigmund ( 1994)
Näe rohkem >>Eukleidilise ruumi alamhulga sulundiks nimetatakse selle hulga kõigi puutepunktide hulka. Hulga sulund on kinnine hulk ning langeb kokku hulga kõikide selles ruumis sisalduvate kinniste ülemhulkade ühisosaga.. Hulga sulundi mõiste on üldistatud mis tahes topoloogilise ruumi alamhulgale, mille sulund on samuti tema kõikide selles ruumis sisalduvate …
Näe rohkem >>Satellite-terrestrial integrated networks (STNs) are considered a promising architecture for 6G networks due to their ability to provide ubiquitous, high-capacity coverage on a global scale by combining satellite and terrestrial network infrastructures. However, the complex network architecture, time-varying topology, and frequent inter-satellite connection …
Näe rohkem >>This paper presents a Matlab code for the optimal topology design of materials with extreme properties. For code compactness, an energy-based homogenization approach is adopted rather than the asymptotic approach. The effective constitutive parameters are obtained in terms of element mutual energies. A corresponding solution scheme with periodic …
Näe rohkem >>The noticeable trend in multi-layer satellite network is the application of laser link in satellite networks [].The network based on laser link has prominent superiority to traditional networks based on microwave communications, especially in broadband use, such as reconnaissance, emergency communication, earth observation, etc. [2, 3].Though link …
Näe rohkem >>When hybrid energy storage technology is applied in different occasions, there are key problems in topology design and configuration optimization. For electromagnetic emission application scenarios with strict volume-weight constraints and large power-energy requirements, a hybrid energy storage group chopper discharge topology is designed, …
Näe rohkem >>An electric car''s battery is equivalent to a fuel vehicle''s engine, without a battery, it is equal to an empty shell. The single energy supply of the battery is difficult to meet the long-term endurance requirements of electric vehicles. Combined with the existing traditional composite power structure, the advantages and disadvantages of the existing traditional …
Näe rohkem >>Inter-satellite links (ISLs) are adopted in global navigation satellite systems (GNSSs) for high-precision orbit determination and space-based end-to-end telemetry telecommand control and communications. Due to limited onboard ISL terminals, the polling time division duplex (PTDD) mechanism is usually proposed for space link layer networking. By …
Näe rohkem >>Teede homotoopia Pikemalt artiklis Homotoopia Kahe tee vaheline homotoopia. Teed ja aasad on algebralise topoloogia haru homotoopiateooria kesksed uurimisobjektid. Teede homotoopia eksplitseerib tee pideva otspunkte säilitava deformatsiooni mõiste.. Teede homotoopia ruumis X on niisuguste I järgi indekseeritud teede f t : I → X pere, et: . f t (0) …
Näe rohkem >>As the continuous in-depth research of sixth generation (6G) technology, the satellite networks in the Space-Air-Ground Integrated Network (SAGIN) have received more and more attention. However, since satellite nodes have the characteristics of limited resources and dynamic link switching, it is important to effectively save energy in satellite …
Näe rohkem >>With the rapid development of urban rail transit, problems such as increased energy consumption have become increasingly prominent, and under the impetus of the "double carbon" background, it is imperative to promote the transformation of urban rail transit energy structure to green and low-carbon, and photovoltaics due to Its own advantages …
Näe rohkem >>This survey describes the context and motivations of the virtual topology design problem, provides a complete formulation of the problem, and describes and compares the formulations and theoretical results as well as algorithms, heuristics and some results in the current literature in the field. In the past few years, there has been growing interest in …
Näe rohkem >>AbstrakSalah satu peningkatan kinerja dalam Data Center (DC) adalah dengan membuat desain topologipada Data Center Networks (DCNs). Pengaruh desain network dalam data center akan berpengaruhterhadap penging- katan nilai throughput dalam jaringan. Dalam topologi Data Center Networks,desain terbagi menjadi dua yaitu homogeneous dan …
Näe rohkem >>In this paper, neural network- and feature-based approaches are introduced to overcome current shortcomings in the automated integration of topology design and shape optimization. The topology optimization results are reconstructed in terms of features, which consist of attributes required for automation and integration in subsequent …
Näe rohkem >>Kuna fotogalvaanilise (PV) tööstuse arenemine jätkub, on energiasalvestuskoha topoloogia disain edusammud muutunud taastuvate energiaallikate kasutamise optimeerimisel kriitiliseks. Uuenduslikest akutehnoloogiatest intelligentsete energiahaldussüsteemideni muudavad need lahendused päikeseenergial toodetud elektri salvestamise ja jaotamise viisi.
Kui otsite oma fotoelektrilise projekti jaoks uusimat ja tõhusaimat energiasalvestuskoha topoloogia disain, pakub meie veebisait laia valikut tipptasemel tooteid, mis on loodud teie konkreetsetele nõuetele vastama. Olenemata sellest, kas olete taastuvenergia arendaja, kommunaalettevõte või äriettevõte, kes soovib oma süsiniku jalajälge vähendada, meil on lahendused, mis aitavad teil päikeseenergia potentsiaali täielikult ära kasutada.
Meie võrguklienditeenindusega suheldes saate sügava arusaamise meie ulatuslikus kataloogis loetletud erinevatest energiasalvestuskoha topoloogia disain-st, nagu suure tõhususega akudest ja intelligentsetest energiahaldussüsteemidest, ning sellest, kuidas need koos töötavad, et pakkuda stabiilne ja usaldusväärne toiteallikas teie fotogalvaaniliste projektide jaoks.
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