Results 51 to 60 of about 11,938 (197)

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Strain‐Activated Mechanical Metamaterial With Programmable Dual‐Phase Stiffness and Enhanced Energy Absorption

Advanced Materials Technologies, EarlyView.
A strain‐activated mechanical metamaterial is developed to achieve programmable dual‐phase stiffness through an intrinsic geometric locking mechanism. Finite element modeling and parametric analysis identify the key design parameters governing activation strain, stiffness transition, and energy absorption.
Ramin Yousefi‐Nooraie, Romain Lemoine, Mario Guagliano, Sara Bagherifard   +3 more
wiley   +1 more source

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

Advanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang, Imran Khan, Jhen‐De You, Fan‐Hua Kong, Chang‐Mou Wu, Po‐Kai Chiu, Ray‐Hua Horng, Jinn P. Chu   +7 more
wiley   +1 more source

5G NR-V2X: Towards Connected and Cooperative Autonomous Driving [PDF]

, 2021
5G New Radio (NR) is touted as a pivotal enablingtechnology for the genuine realization of connected and cooperativeautonomous driving. Despite numerous research efforts inrecent years, a systematic overview on the role of 5G NR in futureconnected ...
MOESSNER, KLAUS, XIAO, PEI, Liu, Zilong, Pesch, Dirk, Noor-A-Rahim, Md., LEE, HAEYOUNG, BAGHERI, HAMIDREZA   +6 more
core   +1 more source

5G NR FR2 Femtocell Coverage Map Using an Omnidirectional Twisted SWAA

IEEE Open Journal of Antennas and Propagation, 2021
This article reports the implementation and coverage map of a mm-waves femtocell, using a high-gain omnidirectional twisted slotted-waveguide antenna array (SWAA).
Hugo Rodrigues Dias Filgueiras, Eduardo Saia Lima, Tiago Henrique Brandao, Arismar Cerqueira S.   +3 more
doaj   +1 more source

A Wireless 3D Magneto‐Mechanical Stimulation Platform Drives In Situ Chondrogenic Commitment of Endogenous MSCs

Advanced Science, EarlyView.
An intracellular magneto‐mechanical platform utilizing MSC‐targeted nanomotors is developed. After intra‐articular delivery, these nanomotors target endogenous BMSCs and are actuated within lysosomes to execute trans‐planar rotational‐bouncing motions under a rotating‐fluctuating 3D magnetic field, generating amplified mechanical stimulation.
Zhenguang Li, Li Peng, Laiya Lu, Yingying Wang, Xiaolei Chen, Feng Yin, Cuijun Deng, Yu Cheng   +7 more
wiley   +1 more source

Design of cellular, satellite, and integrated systems for 5G and beyond [PDF]

, 2020
5G AgiLe and fLexible integration of SaTellite And cellulaR (5G-ALLSTAR) is a Korea-Europe (KR-EU) collaborative project for developing multi-connectivity (MC) technologies that integrate cellular and satellite networks to provide seamless, reliable, and
Cassiau, Nicolas, Chung, Heesang, Kim, Junhyeong, Casati, Guido, He, Danping, Kim, Ilgyu, Pietrabissa, Antonio, Thary, Marjorie, Giuseppi, Alessandro, Yan, Dong, Guan, Ke, Calvanese Strinati, Emilio   +11 more
core   +1 more source

Experimenting Joint Vehicular Communications and Sensing with Optimized 5G NR Waveform [PDF]

, 2021
This article contributes to the experimentation of joint vehicular communications and radio-based sensing using a fifth-generation (5G) New Radio (NR) waveform.
Riihonen, Taneli, Valkama, Mikko, Carlos Baquero Barneto, Taneli Riihonen, Baquero Barneto, Carlos, Mikko Valkama, Liyanaarachchi, Sahan Damith, Sahan Damith Liyanaarachchi   +7 more
core   +1 more source

5G key technologies and business forecast

Dianzi Jishu Yingyong, 2018
On June 14，2018，the 3GPP plenary meeting(TSG#80) approved the freeze of the independent networking function of the fifth generation mobile communication technology standard(5G NR). Coupled with the NR standard which was completed in December 2017, 5G has
Zhu Xuetian, Xia Xu, Qi Fei
doaj   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source