Results 111 to 120 of about 37,508 (305)
Design and Implementation of a Class-D Amplifier and Impedance Matching for Underwater Acoustic Transmissions [PDF]
embargoed_20281118La comunicazione acustica subacquea rappresenta una tecnologia di importanza cruciale per un’ampia gamma di applicazioni, che spaziano dal monitoraggio ambientale all’esplorazione di risorse, fino alle operazioni in ambito militare.
SALVADOR, GABRIEL
core
Molecular Oncology, EarlyView.Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena +15 more
wiley +1 more source
First demonstration of multimode amplifier for spatial division multiplexed transmission systems [PDF]
We present the first systematic study of a two-moded erbium-doped fiber amplifier, and identified its performance trends.
Jung, Y. +9 more
core
2.4 GHz Class-E power amplifier with transmissionline harmonic terminations [PDF]
, 2007 The design procedure, fabrication and measurement of a Class-E power amplifier with excellent second- and third-harmonic suppression levels are presented. A simplified design technique offering compact physical layout is proposed.
Fusco, V.F.; id_orcid +2 more
core +1 more source
Amplifier‐Based Programmable Metasurface for Bidirectional Full Polarization Enhancement
Small StructuresElectromagnetic waves emitted by a transmitter in practical scenarios are often degraded by obstacles along the transmission path, polarization mismatch, and distance to the receiver, which significantly limits the quality of wireless communication.
Xin Wang +5 more
doaj +1 more source
Molecular Oncology, EarlyView.Circulating tumor cells (CTCs) and plasma cell‐free DNA (cfDNA) were analyzed to detect ESR1 mutations and methylation in patients with advanced breast cancer. CTC‐derived DNA showed higher sensitivity for mutation detection and revealed complementary genetic and epigenetic alterations, highlighting the added value of CTC analysis for understanding ...
Dimitra Stergiopoulou +12 more
wiley +1 more source
, 2006 The present invention relates to a closed loop class-D amplifier. The amplifier comprises a feedback arrangement with a low frequency path and a high frequency path.
Horck, van, F.B.M. +3 more
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Molecular Oncology, EarlyView.Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata +10 more
wiley +1 more source
Design of Filterless Class D Audio Amplifier [PDF]
, 2007 近些年來，商業用音訊放大器之應用以AB類放大器為主。然而AB類放大器之功率效能最大不會超過70%，功率損耗大都以熱散逸的型式進而降低電池之使用時間。由於D類放大器擁有高效能之特性，也因此近年廣範的被研究與討論。 傳統脈波寬度調變技術運用在D類放大器時，在輸出級必須要有一組濾波器，這會造成整體面積和成本上的增加。因此，我們利用單極性切換脈波寬度調變技術去實現無濾波器之D類放大器。本論文著重於使整個D類放大器電路皆可以積體電路之方式實現。我們注意到由於三角波邊緣線性度不夠而造成總諧波失真上升的情形 ...
蔡俊豪, Tsai, Chun-Hao
core
Molecular Oncology, EarlyView.A urine‐based digital PCR assay targeting two hotspot TERT promoter variants detected bladder cancer with high sensitivity and no false positives in this case–control cohort. The streamlined AbsoluteQ workflow outperformed Sanger sequencing and supports non‐invasive molecular testing for bladder cancer detection.
Anna Nykel +12 more
wiley +1 more source