Results 31 to 40 of about 38,051,230 (246)

Spectral characteristics of DDPM streams and their application to all‐digital amplitude modulation

Electronics Letters, 2021
A new closed‐form expression of the spectral coefficients of the digital streams obtained by dyadic digital pulse modulation is presented and validated in this letter.
P. S. Crovetti
doaj   +1 more source

Adaptive Delta Modulation Simulation and Analysis Using MatLab

Paradigma, 2023
The system for converting analog signals to digital signals has become a necessity, considering that the tools currently used are digital computers. One of the analog-to-digital conversion systems is the delta modulation system. In delta modulation, only
Djadjat Sudaradjat, Andi Rosano
doaj   +1 more source

Modulator-free quadrature amplitude modulation signal synthesis

, 2014
The ability to generate high-speed on-off-keyed telecommunication signals by directly modulating a semiconductor laser’s drive current was one of the most exciting prospective applications of the nascent field of laser technology throughout the 1960s ...
Kelly, Brian, O’Carroll, John, Slavík, Radan, Phelan, Richard, Richardson, David J., Liu, Zhixin, Kakande, Joseph   +6 more
core   +1 more source

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

Molecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola, Yasmine Illi, Anna Bircher, Marijn Wilmink, Rachele F. Malagutti, Solenn Ottié, Cordelia Schuler, Pedro A. Ruiz, Cheryl de Vallière, Klaus Seuwen, Gerhard Rogler, Martin Hausmann   +11 more
wiley   +1 more source

Transcriptional signature of rapidly responding NK cells reveals S1P5 and CXCR4 as anti-tumor response disruptors

Scientific Reports
Natural killer (NK) cells are prototypic cytotoxic innate lymphocytes that can kill target cells, such as tumor cells, in the absence of antigen-restriction. Peripheral NK cells exhibit a high degree of heterogeneity.
Marta Puig-Gámez, Martijn Van Attekum, Theodor Theis, Alec Dick, John E. Park   +4 more
doaj   +1 more source

Automatic Modulation Classification Based on Hybrid LSTM-MLP With VAE-GAN-Assisted Data Augmentation

IEEE Access
Automatic Modulation Classification (AMC) is a fundamental task in modern wireless communication systems, particularly in cognitive radio, software-defined radio, and next-generation communication environments.
Furkan Balci, Hakki Alparslan Ilgin
doaj   +1 more source

PVDF-based dielectric polymers and their applications in electronic materials

IET Nanodielectrics, 2018
The attractive dielectric poly(vinylidene fluoride) (PVDF) and its copolymers are well confirmed possessing the highest electroactive response including dielectric constant, piezoelectric and ferroelectric effects, which have increasingly wide range of ...
Weimin Xia, Zhicheng Zhang
doaj   +1 more source

In vitro and in silico modelling of ROS1‐positive non‐small cell lung cancer reveals fusion‐dependent tyrosine kinase inhibitor responses

Molecular Oncology, EarlyView.
Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq, Marc Terrones, Felicia Rodrigues Fortes, Anne Schepers, Alessia Denis, Christophe Deben, Ken Op de Beeck, Guy Van Camp, Geert Vandeweyer   +8 more
wiley   +1 more source

Performance Prediction of Double-Binary Turbo Codes with High Order Modulations in AWGN Channel

Advances in Electrical and Computer Engineering, 2014
In this paper, we present a method for turbo codes (TC) performance prediction, in terms of bit error rate (BER) and frame error rate (FER) versus signal to noise ratio (SNR), when they are used with high-order modulations (HOM). The method is based on
BALTA, H., DOUILLARD, C., STOLOJESCU-CRISAN, C., GAL, J.   +3 more
doaj   +1 more source

Performances Study of PSK and ASK Modulation Technique under Atmospheric Turbulence in FSO Communication System [PDF]

Engineering and Technology Journal
The performance and reliability of a free-space optical (FSO) communication system can be greatly increased using various methods. The primary goal of each technique is to reduce the effect of disturbances that lead to intensity or phase fluctuations in ...
Esraa Al – Gazzi, Ekbal Ali, Assel Mohammed   +2 more
doaj   +1 more source