Results 71 to 80 of about 106,434 (256)

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Heat Waves/cold Waves Trends and Agricultural Impact in Mid Hills of Himachal Pradesh

International Journal of Bio-Resource and Stress Management
The analysis was carried out from 1984–2023 at Dr. Y. S. Parmar UHF, Nauni, using secondary data to examine heat-wave and cold-wave trends and their agricultural impact in the mid-hills of Himachal Pradesh.
Priyanka Jattan, Mohan Singh, S. K. Bhardwaj   +2 more
doaj   +1 more source

Mortality effects of heat waves vary by age and area: a multi-area study in China

Environmental Health, 2018
Background Many studies have reported an increased mortality risk from heat waves comparing with non-heat wave days. However, how much the mortality rate change with the heat intensity―vulnerability curve―is still unknown.
Lingyan Zhang, Zhao Zhang, Tao Ye, Maigeng Zhou, Chenzhi Wang, Peng Yin, Bin Hou   +6 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Associations of extremely hot weather and cardiovascular disease mortality: Results from 2011 to 2017, Jinan City, China

Cardiology Plus, 2019
Objective: The main objective of this study is to investigate the acute effects of extremely high-temperature weather and heat waves on the risk of cardiovascular disease (CVD) resulting in the death in Jinan City, China.
Ruoming Cao, Lin Zhou, Jiayu Xu, Liangliang Cui   +3 more
doaj   +1 more source

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

Advanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov, Fabrizio Porrati, Florian Kronast, Riccardo Hertel, Pavlo Makushko, Olha Bezsmertna, Alexander Kuprava, Mohamad‐Assaad Mawass, Sven Barth, Michael Huth, Denys Makarov   +10 more
wiley   +1 more source

Heat wave, fine particulate matter, and cardiovascular disease mortality: A time-stratified case-crossover study in Shenzhen, China

Ecotoxicology and Environmental Safety
Background: In the context of global warming, the frequency of heat wave and the concentration of fine particulate matter (PM2.5) have increased, and more people are co-exposed to air pollution and extreme heat. However, the interaction between heat wave
Ziyang Zou, Ruijun Xu, Ziquan Lv, Zhen Zhang, Ning Liu, Daokui Fang, Jiaxin Chen, Meilin Li, Dongju Zou, Jinling Liu, Yuewei Liu, Suli Huang   +11 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

The spatial extent of heat waves has changed over the past four decades

Communications Earth & Environment
The spatial extent of an extreme heat event influences the total exposure of people and natural systems to heat-related stresses, straining water, energy, and emergency management resources.
Christopher B. Skinner, Danielle Touma, Mathew Barlow, Deepti Singh, Troy King   +4 more
doaj   +1 more source