Results 121 to 130 of about 1,448,495 (301)

An Injectable, Self-Expanding Hemostatic Foam for Field-Compatible Postpartum Hemorrhage Management. [PDF]

open access: yesAdv Sci (Weinh)
Postpartum hemorrhage is the leading cause of maternal death worldwide, yet many treatments are hard to use outside well‐equipped hospitals. This work introduces an easy‐to‐use device that rapidly delivers a degradable foam into the uterus. The foam stops bleeding through pressure and clotting support, offering a practical option for low‐resource ...
Meyer C   +12 more
europepmc   +2 more sources

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Projection Matrix Design for Co-Sparse Analysis Model Based Compressive Sensing

open access: yesMATEC Web of Conferences, 2018
Co-sparse analysis model based-compressive sensing (CAMBCS) has gained attention in recent years as alternative to conventional sparse synthesis model based (SSMB)-CS.
Oey Endra, Gunawan Dadang, Sudiana Dodi
doaj   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

open access: yesAdvanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye   +3 more
wiley   +1 more source

Volatile ZrO2 Antiferroelectric Tunnel Junctions for Rapid, Energy‐Efficient Physical Reservoir Computing

open access: yesAdvanced Science, EarlyView.
An antiferroelectric tunnel junction serves as a reservoir computing node, where field‐induced phase transitions and spontaneous ZrO2 relaxation deliver nonlinear fading memory. An In‐Ga‐Zn oxide interlayer enlarges the memory margin and multibit state richness.
Taegyu Kwon   +13 more
wiley   +1 more source

Compressive Sensing in IoT-Based Multi-Sensor Wireless Sensor Networks

open access: yesInternational Journal of Information and Communication Technology Research, 2019
Wireless sensor network (WSN) is one of the most important components of the Internet of Things (IoT). IoT on the WSN layer, measures different parameters by different sensors embedded in the multi-sensor nodes.
Mohammad Reza Ghaderi   +2 more
doaj  

ISAR Imaging via Compressive Sensing

open access: yes, 2014
This paper aims at giving an overall view of the use of Compressive Sensing (CS) for some applications of Inverse Synthetic Aperture Radar (ISAR) imaging, especially for those where conventional Fourier based approaches typically fail.
TOMEI, SONIA   +4 more
core  

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

open access: yesAdvanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen   +5 more
wiley   +1 more source

Learning sparse representations for adaptive compressive sensing

open access: yes, 2012
Breakthrough results in compressive sensing (CS) have shown that high dimensional signals (vectors) can often be accurately recov-ered from a relatively small number of non-adaptive linear projec-tion observations, provided that they possess a sparse ...
Akshay Soni, Jarvis Haupt
core   +1 more source

Wake‐Up and Fatigue under Electrical Cycling in HfO2‐Based Ferroelectrics: Mechanisms and Strategies toward Reliable Devices

open access: yesAdvanced Science, EarlyView.
HfO2‐based ferroelectrics exhibit wake‐up and fatigue behaviors during electrical cycling, significantly affecting device endurance and reliability. These phenomena are governed by defect dynamics, including oxygen vacancy redistribution and charge trapping.
Hongseok Kim   +6 more
wiley   +1 more source

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