Results 51 to 60 of about 2,809,534 (302)

Digital filtering of square signals of chains' vector analizers

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
An algorithm for the use of digital filtering to the sine and cosine components of the quadrature signal in vector network analyzer is presented. Filters used for calibration and measuring stages to the original signals in volts and end measurements ...
D. A. Kondrashov   +3 more
doaj  

Generating Phase Shifts from Pseudostate Energy Shifts [PDF]

open access: yesPhysical Review Letters, 2007
4 pages, 4 ...
Mitroy, J., Bromley, M. W. J.
openaire   +3 more sources

Low distortion automatic phase control circuit [PDF]

open access: yes, 1974
A voltage controlled phase shifter is rendered substantially harmonic distortion free over a large dynamic input range by employing two oppositely poled, equally biased varactor diodes as the voltage controlled elements which adjust the phase shift ...
Hauge, G., Pederson, C. W.
core   +1 more source

Possible pi-phase shift at interface of two pnictides with antiphase s-wave pairing [PDF]

open access: yes, 2010
We examine the nature of Josephson junction between two identical Fe-pnictides with anti-phase s-wave pairing. pi-phase shift is found if the junction barrier is thick and the two Fe-pnictides are oriented in certain directions relative to the interface.
Fu-Chun Zhang   +2 more
core   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Measurement of electrodynamic characteristics of flat metal gratings in the teraherz range [PDF]

open access: yesРадиофизика и электроника, 2019
Subject and purpose. The terahertz frequency range now attracts much attention of researchers and consumers in connection with the wide possibilities of using it for solving a number of problems in science, technology and medicine.
M.I. Dzyubenko   +3 more
doaj   +1 more source

Phase-shift extraction for phase-shifting interferometry by histogram of phase difference

open access: yesOptics Express, 2010
We propose a non-iterative approach to extract the unknown phase shift in phase shifting interferometry without the assumption of equal distribution of measured phase in [0,2π]. According to the histogram of the phase difference between two adjacent frames, the phase shift can be accurately extracted by finding the bin of histogram with the highest ...
Jiancheng, Xu   +4 more
openaire   +2 more sources

Differential phase shift keyed signal resolver [PDF]

open access: yes, 1974
A differential phase shift keyed signal resolver resolves the differential phase shift in the incoming signal to determine the data content thereof overcoming phase uncertainty without requiring a transmitted reference ...
Hopkins, P. M., Wallingford, W. M.
core   +1 more source

Proposal to observe the strong Van der Waals force in e+\bar{e} -> 2 \pi

open access: yes, 2003
Large discrepancy of the p-wave phase shift data $\delta_{1}(\nu)$ of the $\pi$-$\pi$ scattering from those of the dispersion calculation is pointed out.
Sawada, Tetsuo
core   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

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