https://eprints.soton.ac.uk/271139/1/ras.pdf

A hybrid controller based on the egocentric perceptual principle

Policy-enabled stabilization of nitrous oxide emissions from livestock production in China over 1978–2017

Lower pork consumption and technological change in feed production can reduce the pork supply chain environmental footprint in China

Code division multiple access (CDMA) using direct sequence (DS) spread spectrum modulation provides multiple access capability essentially thanks to the adoption of proper sequences as spreading codes. The ability of a DS-CDMA receiver to detect the desired signal relies to a great extent on the auto-correlation properties of the spreading code associated to each user; on the other hand, multi-user interference rejection depends on the cross-correlation properties of all the spreading codes in the considered set. As a consequence, the analysis of new families of spreading codes to be adopted in DS-CDMA is of great interest. This article provides results about the evaluation of specific full-length binary sequences, the De Bruijn ones, when applied as spreading codes in DS-CDMA schemes, and compares their performance to other families of spreading codes commonly used, such as m-sequences, Gold, OVSF, and Kasami sequences. While the latter sets of sequences have been specifically designed for application in multi-user communication contexts, De Bruijn sequences come from combinatorial mathematics, and have been applied in completely different scenarios. Considering the similarity of De Bruijn sequences to random sequences, we investigate the performance resulting by applying them as spreading codes. The results herein presented suggest that binary De Bruijn sequences, when properly selected, may compete with more consolidated options, and encourage further investigation activities, specifically focused on the generation of longer sequences, and the definition of correlation-based selection criteria.

/pdf/binary-de-bruijn-sequences-for-ds-cdma-systems-analysis-and-31u9tn0qqj.pdf

Binary De Bruijn sequences for DS-CDMA systems: analysis and results

The article deals with the actual issues of choosing the best way to finance innovation in the application of e-technology for improving the level of communication in the provision of educational services. The criteria of this choice are proposed and an expert evaluation is carried out. The results of the study were obtained in the Decision Making Helper© software. Priority of extrabudgetary funds in financing innovations and their influence on the general development of the investment project has been established. Examples of the application of this e-technology for determining the priority direction of development in different fields are given, which allowed to form the author's methodology of work with the program in order to acquire the competencies of users (including students in the process of learning).

Usage of E-Тechnologies to Enhance Infocommunication in Financing Innovation

The solution of technical problems becomes more and more difficult on account of complicated growing systems. In this connection Design of Experiment (DoE) is often used meanwhile also in connection with Six Sigma. However, unfortunately, test planning fail because of the insufficient preparation. The best statistical methods cannot recognize underestimated or forgotten factors. With the help of an example should be shown, how the best possible systems analysis as an entrance for Design of Experiment.

System of analysis

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System of analysis