Results 51 to 60 of about 1,543 (216)

Electrolyte Additive Strategies in Aqueous Zn‐Ion Batteries: Recent Advances and Prospects

Advanced Science, EarlyView.
This article provides a comprehensive overview of the current status and future development directions of AZIBs electrolyte additives in three aspects: stabilizing zinc anodes (uniform deposition, inhibition of dendritic crystals), protecting cathodes (structural stability, inhibition of dissolution), and enhancing electrolyte stability (wider ...
Yuanze Yu, Hongmin Liu, Long Fan, Huakun Liu, Shixue Dou, Guoxiu Wang, Nana Wang, Zhongchao Bai   +7 more
wiley   +1 more source

The MIMO-OTFS Technique in the Next 6G Communications

Engineering Access
The orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation
Ali J. Ramadhan, Ali Taei Zadeh
doaj   +1 more source

Solvation‐Mediated Shift From Solvent‐ to Anion‐Derived Solid Electrolyte Interphases for Stable Calcium Metal Anodes

Advanced Science, EarlyView.
An ion‐dipole interaction based strategy is proposed to capture thermodynamically unstable solvents and restructure the coordination environment of calcium ions by introducing ionic liquid co‐solvents, thus suppressing excessive solvent decomposition. Therefore, a smooth and dense solid‐electrolyte interphase dominated by inorganic components is formed
Yunyun Gao, Jinlei Zhang, Shu Yang, Mengyuan Zhou, Ruimin Li, Zhenghui Pan, Zheng‐Long Xu, Xiaowei Yang   +7 more
wiley   +1 more source

Doppler-Resilient UFMC (DR-UFMC): A Beyond-OTFS Waveform for Improved Spectral Efficiency in High-Mobility Scenarios

IEEE Open Journal of the Communications Society
In recent years, alternative methods to orthogonal frequency division multiplexing (OFDM) have emerged to enhance link-level performance of wireless networks in high-mobility environments.
Carmen D'Andrea, Stefano Buzzi, Maria Fresia, Xiaofeng Wu   +3 more
doaj   +1 more source

In Situ Formation of an In–Zn Interface Layer Enables Aqueous Zinc‐Ions Batteries with High Capacity Retention

Advanced Science, EarlyView.
This work demonstrates an indium zinc oxide (IZO)‐modified separator applied to aqueous zinc ion batteries (AZIBs), which in situ generates an In–Zn interface layer to stabilize the separator/anode region during the cycling process. The In–Zn interface layer provides richer nucleation sites for Zn2+ and suppresses side reactions.
Youwei Jiang, Jinghao Li, Jie Huang, Tan Qiu, Xiuwen Song, Fujun Deng, Yongxue Wang, Yue Ming, Ziping Wu, Qinyou An, Yaoguang Rong   +10 more
wiley   +1 more source

Comparative Insights and Overlooked Factors of Interphase Chemistry in Alkali Metal‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review presents a comparative analysis of Li‐, Na‐, and K‐ion batteries, focusing on the critical role of electrode–electrolyte interphases. It especially highlights overlooked aspects such as SEI/CEI misconceptions, binder effects, and self‐discharge relevance, emphasizing the limitations of current understanding and offering strategies for ...
Changhee Lee, Zachary T. Gossage, Shinichi Kumakura, Shinichi Komaba   +3 more
wiley   +1 more source

How to Combine OTFS and OFDM Modulations in Massive MIMO?

GLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023
In this paper, we consider a downlink (DL) massive multiple-input multiple-output (MIMO) system, where different users have different mobility profiles. To support this system, we propose to use a hybrid orthogonal time frequency space (OTFS)/orthogonal frequency division multiplexing (OFDM) modulation scheme, where OTFS is applied for high-mobility ...
Ruoxi Chong, Mohammadali Mohammadi, Hien Quoc Ngo, Simon L. Cotton, Michail Matthaiou   +4 more
openaire   +3 more sources

Engineering Trace‐Amount Electrolyte Additives for Aqueous Zinc Batteries

Advanced Energy Materials, EarlyView.
Large‐amount additives primarily modify the bulk electrolyte by coordinating with Zn2+ or reshaping the hydrogen‐bond network, thereby altering the overall solution chemistry. In contrast, trace‐amount additives mainly operate at the electrode–electrolyte interface, regulating Zn deposition through electric double‐layer modulation, interfacial ...
Zhaoxin Li, Jinhua Guo, Longjun Chang, Zhenyu Jiang, Shuchang Liu, Chao Wang, Qi Liu, Baohua Li, Zhiqiang Niu, Qing Li   +9 more
wiley   +1 more source

A New Strategy for Deep Wide-Field High Resolution Optical Imaging [PDF]

, 1999
We propose a new strategy for obtaining enhanced resolution (FWHM = 0.12 arcsec) deep optical images over a wide field of view. As is well known, this type of image quality can be obtained in principle simply by fast guiding on a small (D = 1.5m ...
Avila R., Barletti R., Barletti R., Chassat F., Coulman C. E., Coulman C. E., Cowie L. L., Disney M. J., Foy R., Fried D. L., Fried D. L., G. A. Luppino, J. L. Tonry, Jannuzi B. T., Johnston D. C., Martin F., N. Kaiser, Rocca A., Roddier F., Roddier F., Vernin J., Yee H. K. C.   +21 more
core   +2 more sources

Time Domain Channel Estimation and Equalization of CP-OTFS Under Multiple Fractional Dopplers and Residual Synchronization Errors

IEEE Access, 2021
In the last few years, orthogonal time frequency space (OTFS) modulation has received significant attention as an alternative to OFDM especially for high mobilty scenarios.
Suvra Sekhar Das, Vivek Rangamgari, Shashank Tiwari, Subhas Chandra Mondal   +3 more
doaj   +1 more source