Let Ω ∈ C be a domain such that K := C\Ω is compact and non-polar. Let (qk)k>0 be a sequence of polynomials with nk, the degree of qk satisfying nk → ∞, and let (qk(m))k denote the sequence of m-th derivatives. ...
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We present a method for virtual unrolling of a thin rolled object. From a volumetric image of the rolled object we obtain a flat image of the object's surface, which allows visual inspection of the object and has ...
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We present a method for virtual unrolling of a thin rolled object. From a volumetric image of the rolled object we obtain a flat image of the object's surface, which allows visual inspection of the object and has a number of applications. Our method exploits the geometric constrains of the problem and detects a single rolled surface. For surface detection we adapt a solution to an optimal net surface problem, previously used for terrain-like and tubular surfaces. We present our approach on an example of a rolled sheet of microelectronic, which has a layer of flexible polymer substrate and a thin metal layer lithographically coated onto the polymer. Our approach is automatic and robust. The unrolled image is undistorted, and the surface structures may be accurately quantified making our approach a good candidate for an industrial application of virtual unrolling.
In this paper, we study the parameterized complexity of the problems of partitioning the vertex set of a graph into two parts VA and VB such that VA induces a graph with degree at most a (resp., an a-regular graph) an...
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This paper presents an approximate mathematical model that can help Underwater Acoustic Sensor Networks (UW-ASN) to predict mean propagation delay and mean response time over a geographical area. Therefore, a decision...
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ISBN:
(纸本)1601320817
This paper presents an approximate mathematical model that can help Underwater Acoustic Sensor Networks (UW-ASN) to predict mean propagation delay and mean response time over a geographical area. Therefore, a decision can be made based on the evaluation of all factors regarding the performance measures. In this paper, we consider the case of a single sink, which is responsible for all information requests, in a specific territory on a first come first served basis, and data is transmitted in peer-to-peer mode.
The layer3 switch enables us to fast transmit IP datagrams using the cut-through technique. The current layer3 router would become a bottleneck in terms of delay performance, as the amount of traffic injected into hig...
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The layer3 switch enables us to fast transmit IP datagrams using the cut-through technique. The current layer3 router would become a bottleneck in terms of delay performance, as the amount of traffic injected into high speed networks gets relatively large. Thus, the layer3 switch should be an important element in constructing the next generation Internet backbone. We analyze the cut-through rate, the datagram waiting time and the mis-ordered rate of a layer3 switch in case of flow-driven connection setup. In the analysis, by using a 3-state Markov modulated Bernoulli process (MMBP), we model the arrival process of IP flow and IP datagram from each source. Furthermore, we investigate impacts of the arrival rate and the average datagram length on performance.
Single molecular magnets (SMMs) have become promising paradigms to develop novel spintronics for futuristic information technologies such as high-density information and quantum computing. The efficiency and character...
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Single molecular magnets (SMMs) have become promising paradigms to develop novel spintronics for futuristic information technologies such as high-density information and quantum computing. The efficiency and characteristics of SMM devices are determined by the intrinsic nature of the molecular magnets placed in the spin transport pathway. In this work, to understand the role of the central magnetic ion on the performance of SMM devices, we screen the spin-conductance properties of whole 3d and 4d metalloporphyrins using the nonequilibrium Green's function formalism in conjunction with density functional theory. Our results show that the investigated SMMs according to spintronic conductance behavior can be categorized into three groups: type I non-spin-polarized, type II′ minor spin-polarized current, and type II″ major spin-polarized current devices. Type-II′ and type-II″ molecular systems show perfect spin filtering and spin-dependent negative differential resistance. The optimal energy alignment of spin-polarized molecular orbitals with gold electrodes results in one-channel spin transport (minor for type II′ and major for type II″). Thus type-II junctions are half-metal. The type-II″ junctions also show a voltage-induced spin switchability at low bias voltages. In this regard, type-II molecular systems are promising candidates for a low-power consumption spin filter, spin switch, memory, to name just a few. Our results highlight the practical applications of metalloporphyrin for the development of multipurpose miniature spintronic devices.
Forward Brillouin point sensing is demonstrated in a multi-core fiber. Acoustic waves are stimulated by light in one core and monitored using a grating in another. Measurements distinguish between ethanol and water ou...
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In this paper, we introduce StochGradAdam, a novel optimizer designed as an extension of the Adam algorithm, incorporating stochastic gradient sampling techniques to improve computational efficiency while maintaining ...
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A flexible (2k, 2k) quantum image secret sharing (QISS) is proposed for the first time based on 1-qubit measurement scheme and the idea of strip. Through simple quantum measurements, a quantum image can be generated i...
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A flexible (2k, 2k) quantum image secret sharing (QISS) is proposed for the first time based on 1-qubit measurement scheme and the idea of strip. Through simple quantum measurements, a quantum image can be generated into 2k shares. When recovering the original secret image, strip operations which are proposed in quantum movie are applied on the shares and the secret image can be recovered in one piece. Compared with the polynomial interpolation based quantum state sharing method, QISS needn't map the quantum secret state to a new encoding. Moreover, the shares in QISS are still quantum images and the sizes of them are smaller than the original one.
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