Results 71 to 80 of about 8,935,486 (331)

Low phase-shift amplifier [PDF]

open access: yes, 1972
Single-stage MOSFET amplifier is described which is identical to standard neutralized amplifier except that neutralization provided by broadband transformer is applied to AGC gate instead of signal gate.
Coffin, R. C., Lutes, G. F.
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

Non-adiabatic conditional geometric phase shift with NMR [PDF]

open access: yes, 2001
Conditional geometric phase shift gate, which is fault tolerate to certain errors due to its geometric property, is made by NMR technique recently under adiabatic condition.
Keiji, Matsumoto, Xiang-Bin, Wang
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

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

Phase shift in experimental trajectory scaling functions

open access: yes, 1993
For one dimensional maps the trajectory scaling functions is invariant under coordinate transformations and can be used to compute any ergodic average.
Cvitanović   +14 more
core   +1 more source

Channel Acquisition for Massive MIMO-OFDM With Adjustable Phase Shift Pilots [PDF]

open access: yesIEEE Transactions on Signal Processing, 2015
We propose adjustable phase shift pilots (APSPs) for channel acquisition in wideband massive multiple-input multiple-output (MIMO) systems employing orthogonal frequency division multiplexing (OFDM) to reduce the pilot overhead.
Li You   +3 more
semanticscholar   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Energy Estimation of Distributed Phase-shift Beamforming

open access: yesActa Polytechnica, 2012
Ad-hoc and sensor networks are composed of small, low-power devices, which can connect between themselves without the help of an infrastructure. Research in this area has been both extensive and intensive and is still very far from exhaustion.
Viktor Černý
doaj  

Pixelwise Phase Unwrapping Based on Ordered Periods Phase Shift

open access: yesSensors, 2019
The existing phase-shift methods are effective in achieving high-speed, high-precision, high-resolution, real-time shape measurement of moving objects; however, a phase-unwrapping method that can handle the motion of target objects in a real environment ...
Satoshi Tabata   +3 more
doaj   +1 more source

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