Results 51 to 60 of about 11,641 (207)

Peak-to-Average Power Ratio in the Circuit Design of a 20MHz Bandwidth of a Wireless LAN IEEE 802.11n

International Journal of Technology, 2015
An important aspect of the Wireless Local Area Network’s (WLAN) physical layer design is its Peak-to-Average Power Ratio (PAPR) that has an important role in the power amplifier’s linearity and efficiency.
Hendra Setiawan
doaj   +1 more source

In Vitro Effects of Anaesthetic Compounds on a Panel of Solid Tumour Cell Lines—An Exploratory Study

Journal of Cellular and Molecular Medicine, Volume 30, Issue 18, September 2026.
ABSTRACT Anaesthetic agents are essential for surgical procedures, yet their potential role on tumour cell biology remains incompletely understood. Emerging evidence suggests that these compounds can act both as protumor and antitumor agents, influencing cellular processes such as proliferation, migration and cell death mechanisms.
Olga Grajdieru, Alexandru Cristian Sabo, Adrian Bogdan Tigu, Andrei Ivancuta, Cristian Silviu Moldovan, Andrada Uhl, Miruna Cristina Ungurenasu, Andrada‐Ioana Balmez, Ada Moisescu, Simina Pîrv, Madalina Nistor, Ximena‐Maria Muresan, Diana Cenariu, Ciprian Tomuleasa, Catalin Constantinescu   +14 more
wiley   +1 more source

PAPR Reduction and Data Security Improvement for OFDM Technique Using Chaos System

Journal of Communications Software and Systems, 2019
Orthogonal Frequency Division Multiplexing (OFDM) is the most popular multicarrier technique because it produces several advantages such as higher spectral efficiency, high transmission rate, robustness to fading channel and etc..
Muntadher Kadhim Abdullah, Ali Jawad Ibada   +1 more
doaj  

Synergistic Enhancement of Modified‐PVDF Humidity Sensitivity via Chemical Adsorption‐Ionic Conductivity and its Application in Intelligent Powered Air‐Purifying Respirator

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He, Hongwei Liu, Xianjie Xu, Xinkai Qi, Danhong Gao, Hanling Deng, Dusong Hou, Qianyao Lu, Lei Zhu, Sheng Huang   +9 more
wiley   +1 more source

Perbandingan PAPR Metode CSLM dan SSLM pada Pengirim OFDM

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2019
OFDM has multiple weaknesses, one of which is a high Peak to Power Average (PAPR). The maximum power value of the OFDM signal will be much greater than the average power, so the efficiency of the amplifier will be reduced.
Rana Nuriadnyana, Arfianto Fahmi, Budi Syihabuddin   +2 more
doaj   +1 more source

Inward Leakage in Tight-Fitting PAPRs [PDF]

Journal of Environmental and Public Health, 2011
A combination of local flow measurement techniques and fog flow visualization was used to determine the inward leakage for two tight-fitting powered air-purifying respirators (PAPRs), the 3M Breathe-Easy PAPR and the SE 400 breathing demand PAPR. The PAPRs were mounted on a breathing machine head form, and flows were measured from the blower and into ...
Koh, Frank C., Johnson, Arthur T., Rehak, Timothy E.   +2 more
openaire   +2 more sources

PaPR Data Set

, 2019
The PaPR data set is an important new open data set that describes the adoption of e-prescribing as measured in Part D Medicare data.The dataset, called PaPR (Providers and Prescribing Records) details how different individual prescribers deliver ...
Frederick Trotter (752177)
core   +1 more source

A Highly Efficient Two‐Sided Temporal Convolutional Neural Network for Wideband Digital Predistortion of RF Power Amplifiers

International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 39, Issue 3, May/June 2026.
ABSTRACT Behavioral models for Power Amplifier (PAs), particularly those based on Neural Networks (NNs), often suffer from high computational complexity when handling wideband signals. In this paper, we present a novel behavior model for wideband GaN PAs based on a Two‐Sided Temporal Convolutional Neural Network (TST‐CNN).
Haithem Rezgui, Rim Barrak, Amine Ben Salem, Adel Ghazel   +3 more
wiley   +1 more source

From the Modeling of Experiments to the Ab Initio Prediction of Rate Constants: Statistical Rate Theory for a Quantitative Understanding of Gas‐Phase Ion Chemistry

ChemPhysChem, Volume 27, Issue 8, 28 April 2026.
For directly comparing experimental results on gas‐phase ion reactions with the predictions from quantum chemical calculations, the latter must first be converted into rate constants. This review addresses the question of whether current methods of statistical rate theory can accomplish this task reliably. Statistical rate theory has long been used for
Thomas Auth, Konrad Koszinowski
wiley   +1 more source

APR Reduction Technique based on OFDM Pilot Filter Bank Limiting for Satellite Mobile Communications

MATEC Web of Conferences, 2018
Combined with OFDM (Orthogonal Frequency Division Multiplexing), satellite mobile communications will effectively achieve on-demand communication in areas with an ultra-low density of users.
Dai Tianfang
doaj   +1 more source