applications of operations research in the air transport industry

... PRINCIPLES OF MATHEMATICS IN OPERATIONS RESEARCH Lee & Lee/ BUILDING SUPPLY CHAIN EXCELLENCE IN EMERGING ECONOMIES * A list of the early publications in the series is at the end of the ... re-taking of the Muslim lands benefited. The leadership of the reconquest of Castillian territory south of the Duero River and the creation of the vast majority of the dehesa is thus tightly linked. ... beyond the human perception in the case of mining resources. But in all the cases, the key matter is to obtain an efficient use of the resource along its planning horizon. Another element of...

Ngày tải lên: 23/03/2014, 06:20

Ngày tải lên: 01/06/2015, 20:20

... radiation. The extent of the effect of its presence on the radiation spectrum, together with the resolution and signal-to-noise of the instrument, determine the accuracy of the measurement. In the ... trace gases in the near-infrared, the air mass factor can be approximated by the geometrical air mass factor. However, in the UV and visible part of the spectrum, scattering in the atmosphere ... (40.000 km) that they have the same rotational period as the earth. Therefore they always see the same part of the earth, about 1/3 of the total surface. From these orbits the satellite instrument...

Ngày tải lên: 17/02/2014, 10:20

... Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy The University of Texas at Austin ... and the type of electronic 16 labor, and where t is the number of years in business. t is included in the model to control for the maturity of a company. Companies operating in the Internet ... migrate many of their business activities to the Internet, can they also benefit from insights regarding productive and unproductive activities in an online world? In the late nineties, online traffic...

Ngày tải lên: 18/02/2014, 11:20

... reviewed here used the firm as the unit of analysis. The remaining fifteen studies adopted ex- port venture as the unit of analysis. In the case of using the firm as the unit of analysis, the export ... one in- dustrial sector does not permit generalizing the results to other industrial sectors as it casts doubt on the external validity of the findings. Of the studies that reported the size ... fully the strengths of each indicator and minimize the impact of their shortcomings (Evangelista 1994). Accordingly, the use of multi- ple measures of export performance has been more typical in...

Ngày tải lên: 06/03/2014, 21:20

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Ngày tải lên: 16/03/2014, 03:20

... Although in- corporation of this information reduced the num- ber of possible parses, the processing time in- creased because of the addition of the link nodes in the grammar. 2 Constraint Grammar ... the system assigns all of the possible roles the words can have by applying the lexical constraints (which specify legal word categories) and allowing the word to modify all the remaining ... words in the sentence or no words at all. Each of the arcs in the network has associated with it a matrix whose row and column indices are the roles that the words can play in the sentence. Initially,...

Ngày tải lên: 23/03/2014, 20:20

... protein bilinear descriptors account for 83% of variance of the t m for the cases in the training series; the values of F-ratio for Eqns (27) Table 10. Results of the stochastic bilinear indices-driven ... suggest the robustness and discriminatory ability of these linear discriminant models. Predicting the melting points and the free energy changes for the Arc mutants Both linear combinations of nonstochastic ... that characterizes each kind of R-chain in the protein. The calculation of the three first values of bilinear indices for the example protein (Tables 2 and 3) is shown in Table 4. It should be...

Ngày tải lên: 29/03/2014, 09:20

... a 2 nx 2 is the remainder of the division of x n by the characteristic polynomial of A. Further, by elementary techniques of linear algebra one can also compute them in terms of the eigenvalues of A ... that the fixed point lays on the line 10x  2y  3  0. This is also the case in the general setting. It follows from 4.22 that whenever σ n k −1  0 then the point x n−k ,y n−k  is on the line ... Stability of Fixed Points We finish this section with the complete study of the stability of the fixed points in the case β 2 /  0. Theorem 4.7. Suppose that β 2 /  0,letλ be a real eigenvalue of the...

Ngày tải lên: 21/06/2014, 05:20

... defined as trapping sets. In [3], it is shown that the dominant trapping sets are formed by a combination of short cycles present in the bipartite graph. In the following, we adopt the terminology and ... addressed in [3, 5–9]. The main approaches for mitigating the impact of trapping sets on LDPC codes are based on either introducing algorithms to minimize their presence during code design as in [5, ... enhancing decoder performance in the presence of trapping sets as in [3, 6, 8]. The main disadvantage of the first approach, in addition to putting tight constraints on code design, is that trapping...

Ngày tải lên: 21/06/2014, 23:20

... obtained the Master of Engineering degree in July 2004. She then attended Mc- Master University pursuing further studies in the Department of Electrical Engineering and completed the degree of ... edges are the [MK −(K + L)] vectors {η m } involved in the principal minor. Now, since the determinant of the rank deficient matrix P ⊥ H  Σ r (P ⊥ H ) H represents the square of the volume of a collapsed ... is designated the CCD-ML method of chan- nel estimation. Since the information of h i is also embed- ded in the matrix contained in the parentheses, the IQML [27] algorithm can again be applied...

Ngày tải lên: 22/06/2014, 23:20

... similar- ity of the B-parts in the Chopin example results from “sub- tracting” the segments corresponding to the A-parts given by A 2 from the segments of A 1 . Or, in the Mendelssohn ex- ample, the similarity ... measured in seconds. The columns indicate the respective piece of music, the duration of the piece, the running time to compute the CENS features (Section 2), the running time to compute the self-similarity ... se- quence of length N = 901, corresponding to 15 minutes of audio. Tripling the length N by using a threefold concatena- tion of the Bolero results in a running time of 37.9 seconds, showing an increase...

Ngày tải lên: 22/06/2014, 23:20

... in strengthening the competitiveness of the country, of the local. These lead to the need of measuring the competitiveness of garment enterprises in the region, of finding out the influencing factors and then offering ... (sewing, buttons, lace ) + Local orientation: not investing in the 5-scattered localities in the region; not investing in the dyeing industry in Danang and Quang Nam because of the risk of sea ... information, certification of origin, anti counterfeit 3.4.2.3. Enhancing intra-regional cooperation in the development of the garment industry The viewpoint is that provinces and city in the regiong exploit together...

Ngày tải lên: 28/07/2014, 10:56

... agreement of increments either in the case of identical total height with all plants included in the comparison or in the case of comparing only plants without the injured terminal shoot. The health ... the stocking of birch stands and that the number of injured plants decreases with the increasing stand density (K 2007). e smoothing of total heights and increments of underplanting in ... access of lateral light into the stands growing in the Bohemian-Mora- vian Upland (with underplanting realized in margin- al parts of the stands) than in the Krušné hory Mts. (with underplanting...

Ngày tải lên: 07/08/2014, 03:22

... growing roots. Nor can we corroborate the statements of the authors according to whom the sycamore maple mainly roots into a depth during the initial stages and the development of other root ... roots; incidence of malformation. e measured values were used to calculate the index of surfaces (Index p, Ip in the tables of results). e index of surfaces is calculated as the ratio of the ... mounds Sycamore maple is one of the noble broadleaved species. Its representation in the existing species composition of forest stands being rather low, the study of the species and mainly of its root system...

Ngày tải lên: 07/08/2014, 04:20

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Ngày tải lên: 10/08/2014, 10:23