Results 61 to 70 of about 3,465,717 (304)

Automatic frequency control of voltage-controlled oscillators [PDF]

open access: yes, 1969
Optical-capacitive coupling is used for isolation of control voltages, such as the high-voltage level of a klystron control electrode that is not referenced to ground, to serve as error voltages referenced to system ground so that the magnitude and sense
Kolbly, R. B.
core   +1 more source

Selection and environmental adaptation along a path to speciation in the Tibetan frog Nanorana parkeri. [PDF]

open access: yes, 2018
Tibetan frogs, Nanorana parkeri, are differentiated genetically but not morphologically along geographical and elevational gradients in a challenging environment, presenting a unique opportunity to investigate processes leading to speciation. Analyses of
Che, Jing   +18 more
core   +2 more sources

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

A Systematic Design Method for a Dual-Band Balun With Impedance Transformation and High Isolation

open access: yesIEEE Access, 2019
In this paper, the systematic design for a dual-band balun featuring impedance transformation and high output isolation is presented. A dual-band balun capable of conducting transformation between an unbalanced 50-$\Omega $ line and a balanced one of 300-
Eric S. Li   +3 more
doaj   +1 more source

High-Isolation Dual-Polarized Microstrip Antenna via Substrate Integrated Waveguide Technology [PDF]

open access: yes, 2014
A dual-polarized microstrip antenna with high-isolation is proposed by the utilization of the substrate-integrated waveguide (SIW) technology. According to the SIW technology, the metalized holes (MHs) are inserted into the substrate for the proposed ...
Cao, Xiangyu   +3 more
core   +1 more source

High-Performance Shuffle Motor Fabricated by Vertical Trench Isolation Technology [PDF]

open access: yes, 2010
Shuffle motors are electrostatic stepper micromotors that employ a built-in mechanical leverage to produce large output forces as well as high resolution displacements.
Berenschot, Erwin   +5 more
core   +5 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

High-Isolation Diplexer With High Frequency Selectivity Using Substrate Integrate Waveguide Dual-Mode Resonator

open access: yesIEEE Access, 2019
Two novel substrate integrated waveguide (SIW) high-isolation dual-mode diplexers based on electromagnetic perturbation technology have been presented in this paper.
Kaijun Song   +5 more
doaj   +1 more source

A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas

open access: yesIEEE Access, 2020
In this paper, a systematic and calculation-based parasitic decoupling technique (PDT) is proposed to mitigate the mutual coupling between two closely coupled antennas.
Min Li   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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