Results 131 to 140 of about 502,313 (277)

Novel Non‐Equimolar High‐Entropy Zirconates With Superior Thermophysical Properties

open access: yesRare Metals, EarlyView.
ABSTRACT Rare‐earth zirconates (RE2Zr2O7) are promising candidates for topcoat materials in thermal barrier coatings (TBCs). However, their practical application in TBCs is limited by poor fracture toughness and low thermal expansion coefficient (TEC).
Taoyi Lu   +7 more
wiley   +1 more source

White‐Light Flexible Crystal With 180° Folding Induced by Halogen‐Bond Network in Organic‐Inorganic Hybrid Perovskite

open access: yesRare Metals, EarlyView.
ABSTRACT Organic‐inorganic hybrid perovskites (OIHPs) with white‐light emission have significant potential in solid‐state lighting and display due to the designable structure and excellent luminescent properties. However, OIHPs are prone to damage during bending due to the brittleness of crystals, which limits their application in the field of flexible
Jinyu Xu   +8 more
wiley   +1 more source

Double‐Hollow Porous Heterostructured CoP/Cu3P Microspheres for High‐Performance Asymmetric Supercapacitors

open access: yesRare Metals, EarlyView.
ABSTRACT CoP has become a research hotspot for supercapacitor electrode materials because of its considerable theoretical capacitance and metalloid nature, but its commercial application remains hampered by structural instability and sluggish ion kinetics.
Gaoliang Wang   +8 more
wiley   +1 more source

Advances in Elemene Nanodelivery Systems: From Material Design to Disease Treatment

open access: yesRare Metals, EarlyView.
ABSTRACT Elemene (ELE) is a bioactive sesquiterpenoid extracted from traditional Chinese herbs, demonstrating broad‐spectrum antitumor, anti‐inflammatory, and analgesic properties with significant therapeutic potential. However, its clinical utility is constrained by inherent physicochemical limitations, including volatility and hydrophobicity, which ...
Xiao Wang   +9 more
wiley   +1 more source

Interfacial Electronic Interactions in Hierarchical Heterostructure Electrocatalyst for Energy‐Saving Hydrogen Production at Industrial Current Densities

open access: yesRare Metals, EarlyView.
ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen   +13 more
wiley   +1 more source

Tunable Ce‐Doping Engineering in TiFe‐Based Alloys for High‐Activation and High‐Durability Hydrogen Storage

open access: yesRare Metals, EarlyView.
ABSTRACT TiFe‐based hydrogen storage alloys have garnered significant attention because of their cost‐effectiveness, high hydrogen capacity, and favorable hydrogen absorption/desorption characteristics. However, practical application was limited by activation challenges and sensitivity to environmental poisoning.
Yuehai Li   +8 more
wiley   +1 more source

Composite‐Field Annealing Enables Superior High‐Temperature Noise Stability in Fluxgate Sensors With Co‐Rich Amorphous Microwires

open access: yesRare Metals, EarlyView.
ABSTRACT Fluxgate sensors with Co‐rich amorphous microwires, widely used for their low noise in magnetic field measurements, encounter significant challenges in high‐temperature environments such as well drilling and geological exploration. Prolonged thermal aging degrades the performance of Co‐rich amorphous microwires, resulting in increased noise ...
Lining Pan   +10 more
wiley   +1 more source

结合深度学习与生物特征识别在冷链拣选中的算法研究

open access: yes智能科学与技术学报, 2019
机器人对食品的抓取、拣选是工业自动化中的一个常见问题,但是食品通常形状不规则、特征多变,导致快速、稳定的视觉分析与定位较为困难。提出了一种结合深度学习与生物特征识别的目标点定位方法,首先使用深度学习模型对目标点进行粗定位,之后在粗定位点的邻域中,利用生物特征进行微调,得到精准的目标点坐标。所设计的方法在常见食品——虾的数据上进行了模型训练与性能验证。首先将虾的图像进行预处理后输入深度学习模型得到粗定位点,之后对虾的位姿进行归一化并提取轮廓线,基于对搜索域内的轮廓拟合与特征点检测以精确定位目标点 ...
陈妮亚, 阮佳阳, 黄金苗, 杨伟
doaj  

Size‐Dependent Hydrogen Dissociation Capacity in Ni/CeO2 Catalysts for Low‐Temperature CO2 Methanation

open access: yesRare Metals, EarlyView.
ABSTRACT Converting CO2 to CH4 under mild conditions is a promising strategy for solving environmental and energy problems, but also a challenge. In this work, the low‐temperature CO2 hydrogenation process over Ni/CeO2 catalysts was significantly accelerated by optimizing the H2 dissociation ability of Ni through the size effect, thus A‐Ni/CeO2 with an
Yu Xie   +8 more
wiley   +1 more source

Carbon‐Insertion‐Engineered WS2 Hierarchical Heterostructure Enabling Superior Sodium‐Ion Storage

open access: yesRare Metals, EarlyView.
ABSTRACT Tungsten disulfide (WS2) is considered a promising anode material for sodium‐ion batteries (SIBs). However, its practical application is hindered by poor electrical conductivity, large volume changes during cycling, and sluggish ion diffusion kinetics, which lead to unsatisfactory electrochemical performance.
Xiuli Hu   +9 more
wiley   +1 more source

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