Zobrazeno 1 - 10
of 18
pro vyhledávání: '"R. A. Polyak"'
Publikováno v:
Journal of Communications Technology and Electronics. 64:126-132
It is shown that the phase–frequency characteristic (PFC) of an analog filter connected to an ADC can be linearized with the aid of a digital filter with a finite impulse response (FIR). Circuit simulation is used to show that an end-to-end PFC bec
Autor:
R. I. Polyak, Yu. A. Grebenko
Publikováno v:
2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO).
In digital processing of wideband signals, a high- order low-pass filter (LPF) is usually used for prefiltering an analog signal. This allows to use sampling frequency 3–4 times higher than the upper frequency of the signal spectrum. The phase resp
Publikováno v:
Structural Optimization. 10:209-216
The Newton Modified Barrier Method (NMBM) is applied to structural optimization problems with large a number of design variables and constraints. This nonlinear mathematical programming algorithm was based on the Modified Barrier Function (MBF) theor
Autor:
R. A. Polyak, M. E. Primak
Publikováno v:
Cybernetics. 13:241-252
Publikováno v:
Bulletin of Experimental Biology and Medicine. 83:298-301
Antrectomy causes a sudden and lasting depression of reflex secretion of the gastric fundal glands in response to insulin hypoglycemia in dogs. The reduction in the secretion of acid and pepsin is on average twice that observed after histamine stimul
Autor:
V. I. Zvyagintsev, R. I. Polyak
Publikováno v:
Bulletin of Experimental Biology and Medicine. 86:1588-1591
The terminal or central part of the pancreas was resected or the whole gland removed in dogs. At different times after the operation the morphological and functional state of the thyroid gland was studied by histological, histochemical, and morphomet
Autor:
V. S. Krishtopin, R. I. Polyak
Publikováno v:
Bulletin of Experimental Biology and Medicine. 98:1264-1267
Publikováno v:
Bulletin of Experimental Biology and Medicine. 90:1096-1099
Publikováno v:
Cybernetics. 5:319-325
Publikováno v:
Journal of Virology. 6:183-187
A more effective method of isolating infectious ribonucleic acid (RNA) from influenza virus was evaluated based on the enzymatic disintegration of the viral coat by Pronase, followed by phenol-detergent extraction of the RNA from susceptible and from