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The method was able to outperform previous literature regarding total annual costs (TAC) for the multiperiod HEN developed. ... The case study approached is one of the largest multiperiod cases for HEN synthesis in the literature (15 streams, 4 periods). The obtained solution has TAC 3.5% lower than the literature solutions. ... Another observed aspect is the presence of max functions. For a given heat exchanger, different heat exchange surface values may be required according to the operating period. ...doi:10.3389/frsus.2022.888251 fatcat:rdseruvitbhunpqfc7raaa2iwy
Theoretical principles are illustrated by examples of design of reducer unit. ... The design of spherical transmission with the constant reduction ratio is developed. ... Figure 6 . 6 Difference in values of coordinate z for sinusoids and curve on Equation (19): 1-for monoperiod curves, 2-for multiperiod curves. ...doi:10.4236/oalib.1100486 fatcat:2nhqjrnqg5cqhch3nuo6rfojye
We introduce a universal method to optically induce multiperiodic photonic complex superstructures bearing two-dimensional (2D) refractive index modulations over several centimeters of elongation. ... frequencies of the respective Fourier series expansions, which enables us to use nondiffracting beams in the experiment showing periodic 2D intensity modulation in order to successively develop the desired multiperiodic ... Thus, the rule for the development of a multiperiodic 2D wire mesh function in hexagonal symmetry reads as and is equivalent to Eq. (6) . ...doi:10.1364/oe.20.027331 pmid:23187588 fatcat:43bxaf26pzhlnnkwerfpsogk7q
Journal of Sensors
We designed, fabricated, and characterized 24 different compound multiperiodic nanostructured waveguides for refractive index sensing. ... For the TM resonances the compound multiperiodic nanostructures exhibit higher sensitivity values compared to the monoperiodic nanostructure and similar values as the aperiodic nanostructures. ... Conclusion We designed, fabricated, and characterized 24 different compound multiperiodic nanostructured waveguides for refractive index sensing. ...doi:10.1155/2016/6174527 fatcat:lr5qmnbbmnhidhdwafmzngjsxq
multiperiodic lattices. ... We present a method based on incremental holographic multiplexing to create a refractive index ratchet distribution into a photorefractive crystal as an example for the generation principle of such complex ... Our results prove a high functionality of this multiplexing technique to induce multiperiodic photonic structures. ...doi:10.1364/ol.37.000797 pmid:22378397 fatcat:p7xzlxkhsjarjk4zefyn4a3tpi
Hans Sachs (A-MNT; Leoben) 94h:53005 53A05 65D17 68U05 Ferguson, Helaman; Rockwood, Alyn (1-AZS-C; Tempe, AZ) Multiperiodic functions for surface design. ... (English summary) Free-form curves and free-form surfaces (Oberwolfach, 1992). Comput. Aided Geom. Design 10 (1993), no. 3-4, 315-328. ...
To further improve the signal-to-noise ratio advanced nanostructure designs are investigated for RWGs. Here, results on multiperiodic and deterministic aperiodic nanostructures are presented. ... These advanced nanostructures allow for the design of the number and wavelengths of the RWG resonances. ... We thank Torben Karrock for taking the scanning electron microscopy images. ...doi:10.1016/j.photonics.2017.07.003 fatcat:dwhzgcsjdzg3vjgfdjp5tl2gqa
In addition, we examine multiperiodic arrays (MPAs) consisting of arrays with different pitches placed adjacent to one another. ... AbstractWe demonstrate control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver. ... To reach the next level of design, detailed control of the SPP fields themselves is desirable. Both the spatial and spectral characteristics are relevant design parameters in this context. ...doi:10.1515/nanoph-2020-0522 fatcat:uorqsc3grvdkxh3jxq5dblqfsi
The hypergraph structure is derived from a multiperiod network describing the spatial and temporal structure of the physical system. ... In this paper a water resources management model including a reservoir design problem is studied, and the methodology is tested by the hypergraph simplex algorithm on a real water resources system on the ... for the reservoir design problem. ...doi:10.1007/s11269-007-9163-2 fatcat:7rmtkw63qjb63cprain3xmzuoe
、Elements of PM are natural numbers which are used in a cost enhancement function for calculating the relative cost for the multiple storage arcs. ... Few of these models like AL-V and the model of Kuczera 「 19891 are multiperiod where optimization process extends for many periods. ...doi:10.1061/(asce)0733-9496(1997)123:1(15) fatcat:75luxako2vbohkxv3tezfs3pai
J We consider multiperiod portfolio selection problems for a decision maker with a specified utility function when the variance of security returns is described by a discrete time stochastic model. ... We present a simulation-based method to solve these problems adopting an approach which replaces the preposterior analysis by a surface fitting based optimization approach. ... Our method is based on the curve surface fitting°a pproach of Muller and Parmigiani (1995) that was developed for optimal design problems. ...doi:10.1016/j.ejor.2005.01.012 fatcat:dcpeftuurjfazgjlpqcw4yniwi
single-and multiperiod GaN / AlGaN MIR HEIWIPs to enhance the light absorption in the detectors. ... Based on the experimental responsivity of single-period GaN / AlGaN midinfrared ͑MIR͒ heterojunction interfacial work-function internal photoemission ͑HEIWIP͒ detectors, we have optimized in detail the ... By using Maxwell equations and the boundary conditions for the electrical vector continuity on the surface between two layers with complex refractive indices ͑ñ j , ñ j+1 ͒, we can express the electric ...doi:10.1063/1.2885121 fatcat:c3zhvdsldjcfvhz74e7wxwgryi
The HEEM was designed to evaluate project benefits based on aggre- gate relationships developed for various highway types. ... The HIAP and PPS develop a multiperiod investment strat- egy which is established based on the optimization of user benefits. ...
Summary: “Model seiection for time series data based upon joint multiperiod forecasts is investigated. ... For this situation we present adequate designs which show, at least, a nearly optimal performance.” 98k:62168 62M40 Steif, Jeffrey E. ...
Maidanak in Uzbekistan, has been important for the success of the network. ... Fig. 2 . 2 The left panel shows the sampling function or "window function" (in amplitude units) for a continuous light curve of 54 h duration. ... Figure 2 left shows the window function for a light curve taken without interruptions, which is a δ function, while Figure 2 right shows the window function when we observe three consecutive nights ...doi:10.1515/astro-2017-0065 fatcat:pikuqyrplbahtnxozisl3nvhuu
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