Demodulation of Amplitude Modulated Noise: A Mathematical Evaluation of a Demodulator for Pathological Tremor EMG's

1983 ◽  
Vol BME-30 (5) ◽  
pp. 304-308 ◽  
Author(s):  
H. L. Journee
2009 ◽  
Vol 20 (2) ◽  
pp. 164-171 ◽  
Author(s):  
Massimo Pifferi ◽  
Vincenzo Ragazzo ◽  
Antonino Previti ◽  
Giovanni Pioggia ◽  
Marcello Ferro ◽  
...  

2016 ◽  
Vol 23 (1) ◽  
pp. S11-S15 ◽  
Author(s):  
Maysaa J. Mohammed ◽  
Isamiddin S. Rakhimov ◽  
Mahendran Shitan ◽  
Rabha W. Ibrahim ◽  
Nadia F. Mohammed

2021 ◽  
Vol 23 (1) ◽  
pp. 79-88
Author(s):  
Yuriy Loginov ◽  
◽  
Yuliya Zamaraeva ◽  
◽  
◽  
...  

Introduction. For pressure treatment of low-plastic metals, it is necessary to develop special techniques for increasing plasticity. In the cold state, an increase in plastic properties is possible due to an increase in the level of compressive stresses during deformation. In the processes of forging precipitation, this is achieved by using shells or clips of various types. At the same time, the configuration of the precipitation tool also matters. To create additional compressive stresses and increase the ductility of the metal, the working surface of the tool can be configured differently than with a normal free draft, where it is obviously larger than the contact surface area of the workpiece, so that metal broadening can occur. The stress state has a great influence on the plasticity of the processed material. This state is described by methods of tensor representation, but to assess the situation, it is customary to use invariants of tensors in one form or another, which eliminates the influence of coordinates on the results of the analysis. In the sections of deformable body mechanics dealing with the influence of the stress state on plasticity, the first, but sometimes other invariants of the stress tensor are used, the invariants themselves are transformed into the stress state indicator and the lode coefficient. The aim of the work: mathematical evaluation of invariant parameters of the stress state of the magnesium precipitation process at room temperature, according to the results of which it is possible to obtain a positive result in real experiments. Research methods: finite element simulation using the DEFORM software module. Results and discussion. The theoretical justification of increasing the plasticity of the magnesium billet in the process of precipitation in the cage without its compression is carried out. An increase in the stress state index modulo 2...5 times is revealed, which contributes to an increase in the plasticity of the metal. At the same time, a zone with a lode coefficient close to zero is identified. It is adjacent to the middle of the height of the workpiece at the point of contact with the cage and can be a dangerous cross-section from the position of crack formation.


2012 ◽  
Vol 9 (5) ◽  
pp. 056011 ◽  
Author(s):  
A Holobar ◽  
V Glaser ◽  
J A Gallego ◽  
J L Dideriksen ◽  
D Farina

2020 ◽  
Vol 7 (6) ◽  
pp. 55-63
Author(s):  
A. Yu. Kuz’min

The study is devoted to the development of accounting procedure and recording the financial results of bonds with a double currency denomination in accordance with International Financial Reporting standards (IFRS). The methodological base of the research includes system and dynamic-situational analysis, evaluation models of financial mathematics, accounting procedures of the theory of financial accounting. Based on the assumptions made at the formal mathematical level, this procedure is fully algorithmized, despite the ambiguity or impossibility of direct assessment of such basic accounting indicators as the initial estimate, the internal effective interest rate, and the amortized cost of a financial instrument. Considerable attention is paid to the issues of mathematical evaluation and reflection of financial results when preparing financial statements in accordance with the concept of amortized cost and effective interest rate, taking into account the impact of changes in the currency component in dynamics. The originality and uniqueness of the developed procedure is that it is applicable to the situations where coupon payments are paid several times a year. The theoretical and practical significance of the research is determined by the development of scientific and applied tools that include accounting and process models, evaluation algorithms and procedures that can be used by accounting and audit departments in practical work when solving problems of reporting in accordance with IFRS.


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