Optimal design of photonic crystals 1 4

... propagation constant β Figure 5.1: Example of dispersion relation of a three-dimensional photonic crystal fiber The inset illustrates an example of the cross section of the waveguide βL and βR are the ... order β1 β2 propagation constant β Figure 5.2: Illustration of formulation II for the optimal design of single-mode single-polarization photonic crystal fiber The propagation constant β is prescribed, ... a uniform grid of mesh size a/40, and the super cell domain Ωs is decomposed into a uniform grid of the same mesh size, but of more elements The cladding consists of two rings of Ω surrounding...

... band width Jh = 0.014 (β1 = 0.79); (middle) optimal configuration when only cladding is optimized, with band width ˆ Jh = 0.074 (β1 = 0.74); (right) optimal configuration when both cladding and...

... The material parameters, cell design, and cell operating conditions that give optimal performance depend on the application area Stationary, portable, and transportation applications all have ... an optimal design for PEM fuel cells to generate maximum power The analysis helped identifying critical parameters and shed insight into the physical mechanisms leading to a fuel cell performance ... operating conditions in PEM Fuel Cells International Journal of Energy and Environment IJEE, 2010; 1(1), 1-20 [9] Maher A. R Sadiq Al-Baghdadi Mechanical behaviour of PEM fuel cell catalyst layers...

... crystal structures of CTX and NFX allowed us to make detailed comparison of 12 xylanases, five from thermophilic organisms This gives a more reliable comparison of the enzyme structures in relation to ... volumes indicating better packing In the comparison of PDB structures, Karshikoff and Ladenstein [51] have observed that proteins from thermophilic and mesophilic organisms essentially not differ in ... reflected in the increased frequency of total number of atoms, charged amino acids and hydrogen bonds Another feature appears to be the increase in the number of residues in the b-strands This indicates...

... solar panels It exhibit a payback of 3.13 years The addition of and m2 of solar panels (cases 2-3) increases solar fraction up to 30% but also payback to 8.7 years, since the greater daily saving ... reliability of panels in case of lateral impacts) APV ,V ,MAX = (2l + w )(h − 0.9 ) − 0.1 w l FIG - SIMPLIFIED SCHEME OF SOLAR CAR (LATERAL AND REAR VIEW) The maximum panel area can be estimated as function ... other researchers for solar hybrid vehicles [8] Fig – SOLAR FRACTION IN VARIOUS LOCATIONS AND MONTHS (Pav=5 KW, hd=2) 50 Solar Fraction 40 0.04 Solar Hybrid h=1 Solar Hybrid h=10 Commercial Cars 50%...

... geometrical model introduced for the uniform rectangular array (URA), which also incorporates the uniform linear array (ULA), we have investigated the optimal design for line -of- sight (LOS) channels ... include an analysis of the influence of nonoptimal design, and analytical expressions for the singular values of the LOS matrix are derived as a function of the quality of the array design The results ... given in Section 4? In our analysis of nonoptimal design, we make use of {βi j } From above, we know that the optimal design, requiring the smallest antenna arrays, was found by setting the relevant...

... , in Figure 6, for setting B In this case, the optimal linear minimum length array consists, as obtained by both optimization criteria, by uniform 2.2 λ spaced antennas Optimal design of linear ... tackled the problem of optimal design of linear arrays in a cellular systems under the assumption of Gaussian interference Two design problems are considered: maximization of the ergodic capacity (through ... antenna spacings Δ through nonlinear relationships The first problem we tackle is that of finding the set of optimal spacings Δ that minimizes the average (with respect to fading) interference...

... divides the set of samples such that all the points with the same class are on the same sides of the hyperplane Let wo and bo denote the optimum values of the weight vector and bias, respectively The ... are separated by an optimal hyperplane, which is bounded by W T X m ≥ and W T X m+1 < 0, i i when the output value is m Hence, the vector X m is called the i 1 -support vector and the vector X m+1 ... classified into 1 -vector and 0 -vector signals The input signals X k are 1 -vector if they satisfy U(W T X k ) = i i They are 0 -vector if they satisfy U(W T X k ) = In vector i space, these two classes...

... International Journal of Control, Automation and Systems, and Journal of Control Theory and Applications He is also a Member of the Editorial Board of IEE Proceedings on Control Theory and Applications ... and noise filtering design in transmultiplexer systems, ” Signal Processing, vol 43, no 1, pp 65–78, 1995 [16] Y.-M Cheng, B.-S Chen, and L.-M Chen, “Minimax deconvolution design of multirate systems ... is the z-transform of si (k) and Sc,i (z) is due to the inputs of other bands and is termed as crosstalk in the ith band In general, the crosstalk in the ith band is composed of (M − 1) leakages...

... difficult to apply them in particular cases in the absence of test results for the materials being used 4. 4 .4 Section 4: design of masonry (a) General stability Initial provisions of this section call ... characteristic shear strength of the masonry, t is the thickness of the masonry and lc is the compressed length of the wall (ignoring any part in tension) Distribution of shear forces amongst interconnected ... practice, the design of loadbearing walls and columns reduces to the determination of the value of the characteristic compressive strength of the masonry (fk) and the thickness of the unit required...

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