Results 31 to 40 of about 3,709 (295)

A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2020
In this paper a 2-4 GHz microstrip IFM (Instantaneous Frequency Measurement) subsystem that uses Wilkinson power dividers, frequency discriminators based on band-stop filters and a DC arduino section is reported.
S. R. O de Souza   +4 more
doaj   +1 more source

Weakening a theorem on divided powers [PDF]

open access: yesTransactions of the American Mathematical Society, 1971
We show that if a Hopf algebra has finite dimensional primitives and a primitive lies in arbitrarily long finite sequences of divided powers then it lies in an infinite sequence of divided powers. Introduction. K. Newman has shown us a counter-example to [3, Theorem 2, p. 521]. The theorem states that if H is a cocommutative Hopf algebra over a perfect
openaire   +1 more source

Geometric Analysis and Systematic Design of Millimeter-Wave Low-Power Frequency Dividers in 65-nm CMOS

open access: yesIEEE Access, 2020
Broadband current-mode logic static divide-by-2 and divide-by-4 circuits fabricated in 65-nm CMOS are presented. The low-power frequency dividers are analyzed in a geometric way.
Mingyu Zhu, Dixian Zhao
doaj   +1 more source

Wilkinson Power Divider

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2023
Abstract: The basic design of a power divider with two symmetrical quarter-wavelength branches that provide matching conditions at all of its ports is the focus of the research. Fr4 was chosen as the design's substrate, and 2.9 GHz is the operating frequency for the circuit.
Pragya Pant   +3 more
openaire   +1 more source

Compact Unequal Power Divider with Filtering Response

open access: yesInternational Journal of Antennas and Propagation, 2015
We present a novel unequal power divider with bandpass responses. The proposed power divider consists of five resonators and a resistor. The power division ratio is controlled by altering the coupling strength among the resonators.
Wei-Qiang Pan   +3 more
doaj   +1 more source

Harnessing the power of dividing cardiomyocytes

open access: yesGlobal Cardiology Science and Practice, 2013
Lower vertebrates, such as newt and zebrafish, retain a robust cardiac regenerative capacity following injury. Recently, our group demonstrated that neonatal mammalian hearts have a remarkable regenerative potential in the first few days after birth.
Muralidhar, Shalini A.   +4 more
openaire   +4 more sources

Dual-band and tri-band balanced-to-single ended power dividers with wideband common-mode suppression [PDF]

open access: yes, 2022
A new design approach of developing multi-band balanced-to-single-ended (BTSE) power dividers is presented in this brief. The design is based on flexible coupling schemes which can guide designing multi-band balanced-to-single-ended power dividers with ...
Guo, YJ, Zhu, H
core   +1 more source

N- WAY COMPACT ULTRA-WIDE BAND EQUAL AND UNEQUAL SPLIT TAPERED TRANSMISSION LINES WILKINSON POWER DIVIDER

open access: yesJordanian Journal of Computers and Information Technology, 2020
In this article, compact N-way Ultra Wide Band (UWB) equal and unequal split Wilkinson Power Dividers (WPDs) using exponentially λ/4 Tapered Transmission Line Transformers (TTLTs) are designed.
Sahar Saleh   +5 more
doaj   +1 more source

Analytical Design for Full-space Spatial Power Dividers Using Metagratings

open access: yes, 2020
We present a rigorous theoretical framework for designing full-space spatial power dividers using metagratings. In our study, the current restrictions of spatial power dividing platforms such as reflection-only performance, operating at normal incidence,
Hamid Rajabalipanah (4492810)   +1 more
core   +1 more source

Venous Thromboembolism in Pediatric Bone Sarcoma Patients: A 10‐Year, Single‐Institution Experience Encompassing the COVID‐19 Pandemic

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Osteosarcoma (OS) and Ewing sarcoma (EWS) are the most common primary bone cancers in children, but acute thrombosis is poorly characterized in this population. Our study evaluated the rates of venous thromboembolism (VTE) and associated risk factors in pediatric patients with bone sarcomas treated over a 10‐year period encompassing
Sarah Kappa   +8 more
wiley   +1 more source

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