Results 201 to 210 of about 6,806 (266)

Redefining LiF as a Nanostructured Building Block for Interphase Engineering in Lithium Metal Batteries

open access: yesAdvanced Science, EarlyView.
LiF‐rich solid electrolyte interphases in lithium metal batteries are redefined as controllable nanostructured building blocks rather than homogeneous protective films. This review shows how LiF distribution, grain boundaries, and heterogeneous interfaces govern electron blocking and Li ion transport, and compares fluorinated electrolytes, artificial ...
Gwangsik Kim, JinHyeok Cha
wiley   +1 more source

Boosting Ferroelectricity: 2D and Polymer Ferroelectric Hybrids Enabling Ambipolar Nonvolatile MoS2 Memory Transistor

open access: yesAdvanced Science, EarlyView.
Two‐dimensional CuInP2S6 nanosheets are incorporated into a P(VDF‐TrFE) matrix to induce polarization‐cooperative ferroelectric coupling. The resulting P(VDF‐TrFE)/CuInP2S6 hybrid film exhibits reinforced ferroelectric ordering and reduced coercive electric fields compared with pristine P(VDF‐TrFE).
Yeonsu Jeong   +10 more
wiley   +1 more source

Ultrasound‐Activatable Piezoelectric Hydrogel Reprograms Mitochondrial Epigenetics for Osteoarthritis Therapy via the mTOR/GATD3A Axis

open access: yesAdvanced Science, EarlyView.
An ultrasound‐activatable piezoelectric hydrogel reprograms chondrocyte mitochondrial epigenetics via the mTOR/GATD3A axis, clearing damaged mitochondria and alleviating osteoarthritis progression in both mouse models and human cartilage explants. ABSTRACT The avascular nature of cartilage hinders drug delivery for osteoarthritis (OA) therapy.
Hui Zheng   +9 more
wiley   +1 more source

Antenna factors of dipole and monopole antennas

Proceedings of 20th Biennial Conference on Precision Electromagnetic Measurements, 2002
Antenna factors of dipole antennas in the frequency range 20 MHz to 600 MHz have been determined to an uncertainty of /spl plusmn/0.1 dB (95%CL) and of monopole antennas in the range 10 MHz to 100 MHz to an uncertainty of /spl plusmn/0.15 dB. This leads to an advance in the precision with which electric field strength of free-space signals can be ...
M.J. Alexander, M.J. Salter
openaire   +1 more source

Modified folded dipole antenna

Proceedings of the International Conference & Workshop on Emerging Trends in Technology - ICWET '11, 2011
This paper describes experimentally how a folded dipole antenna is better in performance than a simple dipole antenna and also describes an alternate way to design folded dipole antenna compatible with loop antenna to generate circular polarized wave.
N. G. Sharma   +3 more
openaire   +1 more source

Tunable dipole antennas

Proceedings of IEEE Antennas and Propagation Society International Symposium, 2002
The concept of extending the operating bandwidth of a dipole has been investigated, and two bandwidth extension approaches were studied. The first approach involves the use of parasitic elements to physically change the length of the dipole. The second approach involves capacitively loading a dipole via varactor diodes to produce a travelling-wave ...
D.J. Roscoe   +4 more
openaire   +1 more source

Compact dipole antenna for implantable devices

2014 International Symposium on Antennas and Propagation Conference Proceedings, 2014
A miniaturized implantable dipole antenna is presented for industrial, scientific, and medical (ISM) (2.4–2.48 GHz) applications. The proposed antenna consists of one pair of folded arms and a T-shaped tuning stub. Whole structure is printed on an FR4 substrate with dimensions of 11×6×0.8 mm3 and suitable for medical applications.
Shun-Yun, Lin   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy