250 Result(s)
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Article
**-Wei Sun
Engineering
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Article
A drug-loaded flexible substrate improves the performance of conformal cortical electrodes
皮质电极是刺激和/或记录神经系统电活动的有力工具. 然而, 外科植入电极所导致的不可避免的伤口带来了与外源性物质暴露相关的细菌感染和炎症反应风险. 此外, 伤口区域的炎症可能会因细菌感染而急剧恶化. 这些后果不仅可能导致皮质电极植入失败, 还可能威胁患者生命. 在此, 我们制备了负载抗生素四环素 (TC) 和抗炎药物地塞米松 (DEX) 的细菌纤维素 (BC) 水凝胶, 并将其作为皮质电极的柔性基底. 负载的药物可...
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Parameter Optimization of Plow Mixer Structure Based on EDEM
Due to the dynamic complexity and diversity of structural parameters, the mixing efficiency improving of plow mixer is a challenge. In this study, the mixing behavior of particles simulated by the discrete ele...
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Exploring Antarctic subglacial lakes with RECoverable Autonomous Sonde (RECAS): Design and first field tests
Conducting scientific drilling on subglacial lakes and obtaining samples of subglacial lake water holds great significance in unraveling the formation and evolution of Antarctic subglacial lakes and early Eart...
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A novel route to enhance high-temperature mechanical property and thermal shock resistance of low-carbon MgO–C bricks by introducing ZrSiO4
Conventional MgO–C bricks (graphite content > 14 wt.%) produce a great deal of greenhouse gas emission, while low-carbon MgO–C bricks have serious thermal shock resistance during high-temperature service. To e...
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Effect of Precipitates on Dynamic Recrystallization and Texture of Mg-Sn Alloy Under Different Strain Rates
The present study investigated the microstructure and texture evolution of Mg-Sn alloy with and without pre-existing precipitates under different strain rates. Rod-shaped Mg2Sn phase was introduced in the Mg-Sn a...
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Design and Control of an Autonomous Bat-like Perching UAV
Perching allows small Unmanned Aerial Vehicles (UAVs) to maintain their altitude while significantly extending their flight duration and reducing noise. However, current research on flying habitats is poorly a...
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Open AccessThrough-polymer, via technology-enabled, flexible, lightweight, and integrated devices for implantable neural probes
In implantable electrophysiological recording systems, the headstage typically comprises neural probes that interface with brain tissue and integrated circuit chips for signal processing. While advancements in...
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Role of texture before rolling: a research based on texture and magnetic properties of 4.5 wt.% Si non-oriented electrical steel
The evolution of microstructure, texture, and magnetic properties with random texture, near-copper texture, weak near-cube texture, and strong λ fiber (<001>//ND (normal direction)) before rolling of non-orien...
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Open AccessCoupling of BiOCl Ultrathin Nanosheets with Carbon Quantum Dots for Enhanced Photocatalytic Performance
Over the past few decades, photocatalysis technology has received extensive attention because of its potential to mitigate or solve energy and environmental pollution problems.Designing novel materials with ou...
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Mechanical performance of 22SiMn2TiB steel welded with low-transformation-temperature filler wire and stainless steel filler wire
TX-80 low-transformation-temperature (LTT) welding wire was used to replace the traditional ER 307Si welding wire to realize the connection of 22SiMn2TiB armor steel in manual overlay welding. The previously e...
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Experimental Study of a Reconstruction Method for Rock Joints in Sandstone Based on 3D Laser Scanning and 3D Engraving Techniques
The shear behaviour of natural joints generally exhibits anisotropy due to variations in morphological characteristics. The anisotropic shear behaviour of natural joints mainly determines the rock mass stabili...
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An 18-bit SAR ADC with Mixed DAC and Capacitive Recombination Calibration
This paper presents a high-resolution 18-bit SAR ADC with a high 10-bit capacitor DAC and a low 8-bit resistor DAC. The total required number of the unit capacitors is decreased to 512. Foreground digital cali...
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Reducing children’s exposure to di(2-ethylhexyl) phthalate in homes and kindergartens in China: Impact on lifetime cancer risks and burden of disease
Exposure to di(2-ethylhexyl) phthalate (DEHP) in the indoor environment has been linked with significant health risks for Chinese children. Multi-phase DEHP concentrations in Chinese residences and kindergarte...
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Variation of humic carbon and microbial communities in bauxite residue following co-application of straw and phosphogypsum
Humification is one of the critical processes in the ecological restoration of bauxite residue deposit areas. Straw addition is widely used strategy to increase organic carbon in bauxite residue. However, the ...
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An experimental study on effects of temperature gradient on microstructure of a 308L stainless steel manufactured by directed energy deposition
The effect of spatial temperature gradient on the microstructural evolution of a 308L stainless steel during the directed energy deposition (DED) process was experimentally investigated. A novel cooling system...
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Open AccessUltralow friction PTFE/PEEK heterolayer: A new solid lubrication approach toward simplicity
Tribological applications of polytetrafluoroethylene (PTFE) are often limited by technological complexity to overcome its poor wear resistance. Here, a PTFE/polyetheretherketone (PEEK) heterolayer (HL) was pro...
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Mechanoluminescence of metal complexes: Progress and applications
Mechanoluminescence (ML) is a light emission phenomenon caused by mechanical force on a substance. Recently, metal complexes mechanoluminescence materials are attracting widespread attention owing to their dis...
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Open AccessIn Situ Deposition of Drug and Gene Nanoparticles on a Patterned Supramolecular Hydrogel to Construct a Directionally Osteochondral Plug
A multifactorial and oriented scaffolds was constructed to stimulate osteochondral regeneration.
This is the first demonstr...
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Effect of oxygen enrichment on sintering behavior of high proportion vanadium–titanium magnesite concentrates
To achieve high-efficiency utilization of complex and unmanageable iron-containing minerals, the effects of oxygen enrichment on productivity, yield, flame front speed, exhaust gas peak temperature, and desulp...
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Open AccessAtomic Cu Sites Engineering Enables Efficient CO2 Electroreduction to Methane with High CH4/C2H4 Ratio
The Cu-doped graphitic carbon nitride (g-C3N4) material is synthesized by an in situ thermal polymerization strategy, through which the atomic dispersion and coordination stru...
