Results 61 to 70 of about 555,563 (301)

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Maritime Broadband Communication: Wireless Channel Measurement and Characteristic Analysis for Offshore Waters

Journal of Marine Science and Engineering, 2021
For a long time, the development of maritime communication has been restricted by the low data rate, high-latency and high cost of the current communication systems.
Changzhen Li, Junyi Yu, Jie Xue, Wei Chen, Shoufeng Wang, Kun Yang   +5 more
doaj   +1 more source

Analytical Model for Outdoor Millimeter Wave Channels using Geometry-Based Stochastic Approach

, 2016
The severe bandwidth shortage in conventional microwave bands has spurred the exploration of the millimeter wave (MMW) spectrum for the next revolution in wireless communications.
Li, Yonghui, Muhammad, Nor Aishah, Vucetic, Branka, Wang, Peng   +3 more
core   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

Indoor Characterization of Power Delay Profile Using Equivalent Antenna Representation in Uniform FDTD Lattices

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
It is shown that proper representation of transmitting and receiving antennas in indoor environments are decisive for accurate prediction of electromagnetic power transfer parameters using the standard 3D-FDTD method.
Bruno W. Martins, Rodrigo M. S. de Oliveira, Victor Dmitriev, Fabrício J. B. Barros, Nilton R. N. M. Rodrigues   +4 more
doaj   +1 more source

Visual Recovery Reflects Cortical MeCP2 Sensitivity in Rett Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Rett syndrome (RTT) is a devastating neurodevelopmental disorder with developmental regression affecting motor, sensory, and cognitive functions. Sensory disruptions contribute to the complex behavioral and cognitive difficulties and represent an important target for therapeutic interventions.
Alex Joseph Simon, Nathalie Picard, Valeria d'Andrea, Enchi Chang, Joseph Leffler, Eleonora Centofante, Matthew Taylor, Francesca Bardi, Francesca Cavicchiolo, Takao K. Hensch, Stefano Panzeri, Chinfei Chen, Michela Fagiolini   +12 more
wiley   +1 more source

Comparisons and validations on MIMO channel simulation models

Dianxin kexue, 2016
WINNER and COST2100 channel models are geometry based statistical models，they are the most important channel models for MIMO（multi-input multi-output）system simulations in the fourth generation（4G）radio systems.
Xiongwen ZHAO, Bo GAO
doaj   +2 more sources

Multi‐band millimetre wave indoor directional channel measurements and analysis for future wireless communication systems

IET Microwaves, Antennas & Propagation
Single‐input single‐output (SISO) three‐dimensional (3D) wideband indoor directional measurements collected in a factory environment and an office environment at 38 and 70 GHz are presented.
Amar Al‐Jzari, Sana Salous
doaj   +1 more source

SFN channel measurements in Brazil

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, field measurements carried out in a suburban SFN network with two synchronized transmitters are reported. It is found that the radio signal coverage of the distributed transmission scheme is distinctly improved when compared to a single ...
Maurício V. Guerra, Carlos V. Rodriguez R., Luiz da Silva Mello   +2 more
doaj   +1 more source

Prediction Model for Etiologic Differentiation of Isolated Vestibular Syndrome in Emergency Settings

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to develop and validate a predictive model for differentiating central from peripheral etiologies in patients with isolated vestibular syndrome (VS). Methods In this multicenter retrospective cohort study, 506 patients with isolated VS from five hospitals were divided into derivation (n = 301) and validation (n = 205)
Guo Wenting, Du Liping, Yang Yi, Hu Jin, Ye Bijun, Wang Jianer, Liu Shuangsi, Guo Shunyuan, Cai Xiaofeng, Wang Huiyuan, Wu Bin, Yu Xiang, Shi Tianming   +12 more
wiley   +1 more source