Results 101 to 110 of about 131,295 (296)

Self impedance matched Hall-effect gyrators and circulators

, 2016
We present a model study of an alternative implementation of a two-port Hall-effect microwave gyrator. Our set-up involves three electrodes, one of which acts as a common ground for the others.
Bosco, Stefano, DiVincenzo, David P., Haupt, Federica   +2 more
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Optimized Wideband Impedance Matching Balun for Conducting Two-Arm Antennas

International Journal of Antennas and Propagation, 2014
A split coaxial balun with a step transition of the inner conductor diameter is introduced to satisfy impedance matching between unbalanced feeder and balanced antennas.
Khalid F. A. Hussein
doaj   +1 more source

Fast impedance matching for the ion cyctron resonance heating system based on capacitors at the EAST tokamak [PDF]

EPJ Web of Conferences
This paper presents an impedance matching system based on real-time feedback control, designed to address impedance mismatching issues in radio frequency (RF) systems.
Guo Yaoyao, Liu Lunan, Zhang Xinjun, Qin Chengming, Zhang Wei, Chen Qingqing   +5 more
doaj   +1 more source

A New Method to Calculate Electromagnetic Impedance Matching Degree in One-Layer Microwave Absorbers

, 2011
A delta-function method was proposed to quantitatively evaluate the electromagnetic impedance matching degree. Measured electromagnetic parameters of {\alpha}-Fe/Fe3B/Y2O3 nanocomposites are applied to calculate the matching degree by the method ...
Chen-Tao Cao, Huang Y Q, Jian-Bo Wang, Qing-Fang Liu, Wu M Z, Xi L, Yan L G, Yan S J, Zhi Ma   +8 more
core   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

Molecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski, Sławomir Lasota, Ewelina Madej, Anna A. Brożyna, Małgorzata Szczygieł, Agnieszka Harazin‐Lechowska, Jan Czerbniak, Janusz Rys, Jaroslaw Czyz, Agnieszka Wolnicka‐Glubisz   +9 more
wiley   +1 more source

Impedance Matching Optimization of RF Networks

Engineering Proceedings
The subject of this publication is a synthesized description of an S-parameter linear analysis for the improvement of a particular RF amplifier. The model is applied in a simulation environment as a 100–500 MHz two-port device under test with control of ...
Miroslav Tomov, Stanimir Sadinov, Boris Arsov   +2 more
doaj   +1 more source

Large-area, wide-angle, spectrally selective plasmonic absorber

, 2011
A simple metamaterial-based wide-angle plasmonic absorber is introduced, fabricated, and experimentally characterized using angle-resolved infrared spectroscopy.
Andrew Milder, Burton Neuner, Byron Zollars, Chihhui Wu, Gennady Shvets, H. A. Haus, Jeremy John, Steve Savoy   +7 more
core   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Double-Tuned Impedance Matching [PDF]

IEEE Antennas and Propagation Magazine, 2012
In the 1940s, Harold Wheeler developed the principles of double-tuned impedance matching in a simple form. These relationships are not well known. They are very useful for the antenna designer in providing a structured approach to obtain near-maximum bandwidth for narrowband and moderate-band antennas with a specified VSWR limit, using a practical ...
openaire   +1 more source