Results 91 to 100 of about 8,715,244 (286)

Electric-Field-Mediated Reversible Transformation between Supramolecular Networks and Covalent Organic Frameworks

open access: yes, 2019
By using an oriented electric field in a scanning tunneling microscope, one can locally control the condensation of boronic acids at the liquid/solid interface.
Steven De Feyter (1302555)   +13 more
core   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

open access: yesAdvanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar   +1 more
wiley   +1 more source

Research on the Directional Measurement Method of Three-Dimensional Electric Field Intensity Components of the Atmosphere Based on the Geographic Coordinate System in the Airborne Model

open access: yesSensors
Due to the difficulty of achieving absolutely precise coaxial installation of measurement components, a coaxial error will occur between the measurement axis of the sensor and that of the electronic compass when conducting the measurement of the airborne
Wei Zhao, Zhizhong Li, Haitao Zhang
doaj   +1 more source

A low power measurement system for the atmospheric electric field

open access: yes, 2010
In this work an optimized version of the field-mill sensor structure for atmospheric electric field measurements is presented. Both the hardware components, i.e. the mechanical structure, the electronic front-end, the acquisition and control systems, and
Federico Perini   +15 more
core   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

The effect of fog on atmospheric electric fields

open access: yesJournal of Physics: Conference Series
Abstract Naturally occurring electric fields exist in the atmosphere as part of the global electric circuit. These fields are produced by global phenomena, but they are strongly modified by local conditions. One such local effect is fog, which is the reduction in visibility by droplets suspended in the air.
C Miller   +3 more
openaire   +1 more source

A Categorization of the Global Fair-weather Electric Field According to Position and Weather Conditions [PDF]

open access: yesE3S Web of Conferences
Atmospheric electricity is an important branch of physics, which mainly studies various electrical phenomena occurring in the atmosphere and the action process of various parameters in the atmosphere.
Liu Chaoyu, Meng Zizheng, Xia Tangzihan
doaj   +1 more source

Electric-Field-Controlled Nonvolatile Magnetization Rotation and Magnetoresistance Effect in Co/Cu/Ni Spin Valves on Piezoelectric Substrates

open access: yes, 2018
Electric-field control of magnetism is a key issue for the future development of low-power spintronic devices. By utilizing the opposite strain responses of the magnetic anisotropies in Co and Ni films, a Co/Cu/Ni/0.7Pb­(Mg1/3Nb2/3)­O3-0.3PbTiO3 (PMN-PT)
Xiaoguang Li (148206)   +6 more
core   +1 more source

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein   +6 more
wiley   +1 more source

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