Results 131 to 140 of about 2,512,899 (272)

Osmium Nanoparticle Anchoring on CoFe Layered Double Hydroxides Enables High‐Valent Species Stabilization and Efficient Seawater Oxygen Evolution

Advanced Science, EarlyView.
Osmium nanoparticles anchored on CoFe layered double hydroxide (Os/CoFe LDH) stabilize high‐valent Co/Fe species and modulate the interfacial water configuration via surface engineering. This work presents a facile surface engineering strategy for constructing efficient and durable OER electrocatalysts for alkaline seawater, and expands the ...
Xindong She, Guosheng Zhou, Kanghua Miao, Junjie Gong, Mingzhe Jiang, Xueting Zhu, Zhenzhen Wang, Shijie Shen, Wenwu Zhong   +8 more
wiley   +1 more source

Hardware Prototype of a Time-Encoding Sub-Nyquist ADC

IEEE Transactions on Instrumentation and Measurement
Analog-to-digital converters (ADCs) are key components of digital signal processing. Classical samplers in this framework are controlled by a global clock. At high sampling rates, clocks are expensive and power-hungry, thus increasing the cost and energy consumption of ADCs.
Hila Naaman, Nimrod Glazer, Moshe Namer, Daniel Bilik, Shlomi Savariego, Yonina C. Eldar   +5 more
openaire   +2 more sources

Self‐Healing Pd(II) Cage Metallogels for Iodine Capture in Water and Heterogeneous Photocatalysis

Advanced Science, EarlyView.
Two carbazole‐derived metal‐organic cages hierarchically self‐assemble into supramolecular metallogels that integrate autonomous self‐healing, reversible stimuli responsiveness, high‐capacity aqueous iodine capture, and visible‐light‐driven photocatalytic sulfide oxidation within a single multifunctional platform.
Monotosh Dalapati, Raghunath Singha, Debashree Manna, Dipak Samanta   +3 more
wiley   +1 more source

Balancing Crystallization Kinetics and Lattice Strain Enables Thermally Stable Slot‐Die‐Coated Narrow‐Bandgap Perovskite Solar Cells

Advanced Science, EarlyView.
Unbalanced crystallization in mixed Sn‐Pb perovskites causes film defects and instability. CsPbI3 nanocrystals serve as nucleation seeds to regulate growth during slot‐die coating. Resulting solar cells retain 80% efficiency after nine thermal cycles. Operando GIWAXS confirms suppressed microstrain and lattice distortion, demonstrating that synergistic
Xiaojing Ci, Altantulga Buyan‐Arivjikh, Xiongzhuo Jiang, Simon A. Wegener, Christoph G. Lindenmeir, Lixing Li, Thomas Baier, Matthias Schwartzkopf, Sarathlal Koyiloth Vayalil, Kun Sun, Peter Müller‐Buschbaum   +10 more
wiley   +1 more source

Influence of laser surface hardening on corrosion properties of Al-Zn-Si cast alloy

Metalurgija, 2017
This work is focused on the effect of the laser surface treatment (laser power 50 and 80 W) on microstructure and corrosion properties of self-hardened AlZn10Si8Mg cast alloy used for engine and vehicle constructions.
E. Tillová, L. Kuchariková, M. Chalupová, J. Belan, A. Vaško, I. Švecová   +5 more
doaj  

High‐Conductivity Active Interface Layer for Active Lithium Reservoir in Micro‐Silicon‐Based All‐Solid‐State Batteries

Advanced Science, EarlyView.
A self‐generated Li–Si alloy interface transforms carbon‐free micro‐silicon into a kinetically accelerated and mechanically resilient anode for sulfide‐based all‐solid‐state batteries. Serving simultaneously as an active lithium reservoir and conductive interface, the alloy layer compensates lithium loss while accommodating volume changes, enabling 89 ...
Ziqing Wang, Xinxin Zhu, Ruichen Zhu, Wendi Dou, Qian Zhang, Jun Lu, Junxiu Wu   +6 more
wiley   +1 more source

Semi‐Artificial Photosynthesis Enables Light‐Driven Biomanufacturing in Non‐Photosynthetic Bacteria

Advanced Science, EarlyView.
A non‐invasive strategy exploits endogenous H2S metabolism in B. subtilis to drive in situ CdS biomineralization, enabling tight bio‐abiotic contact without genetic modification. Light harvested by the biomineralized nanoparticles powers NADPH regeneration, elevating 2’‐fucosyllactose and surfactin titres two‐ to three‐fold.
Jie Zheng, Anqi Tong, Wenxin Li, Meng Qiao, Yang Gu, Muhammad Sohail, Shan He, Sheng Yang, Xing Zhang   +8 more
wiley   +1 more source

Wideband Spectrum Sensing Based on Single-Channel Sub-Nyquist Sampling for Cognitive Radio. [PDF]

Sensors (Basel), 2018
Liu C, Wang H, Zhang J, He Z.
europepmc   +1 more source

Skyrmion Bubbles by Design in a Centrosymmetric Kagome Magnet

Advanced Science, EarlyView.
Chemical tuning of magnetocrystalline anisotropy in the centrosymmetric kagome magnet TmMn6Sn6 is shown to drive a spin reorientation transition via an intermediate magnetic fan state and to stabilize an emergent skyrmion bubble lattice. Four‐dimensional cryogenic Lorentz scanning transmission electron microscopy confirms the nanoscale texture ...
Mohamed El Gazzah, Fehmi Sami Yasin, Sk Jamaluddin, Hari Bhandari, Resham Babu Regmi, Xiuzhen Yu, Nirmal J. Ghimire   +6 more
wiley   +1 more source

Polynomial Root Finding on Frequency Estimation with Sub-Nyquist Temporal Sampling

Journal of Measurement Science and Instrumentation, 2011
This paper addresses an algebraic approach for wideband frequency estimation with sub-Nyquist temporal sampling.Firstly,an algorithm based on double polynomial root finding procedure to estimate aliasing frequencies and joint aliasing frequencies-time ...
Hai-jie SHI, Zhi-guo GUI, Quan ZHANG
doaj