Results 31 to 40 of about 1,853,633 (142)
简要论述了长江三峡水库的形态和库区泥沙冲淤特点,重点分析了三峡水利枢纽工程建成后水库蓄水运行过程对库区泥沙淤积的影响,以及新形势下水库运行中需要进一步深入研究的重要问题 ...
李家春, 周济福, 刘青泉
core +1 more source
Bidirectional Interfacial Chemical Regulation Enables Durable Aqueous Zn‐I2 Batteries
ABSTRACT Aqueous Zn‐I2 batteries hold great promise for large‐scale energy storage, yet their practical deployment is hindered by coupled interfacial instabilities at both electrodes, where Zn‐anode parasitic reactions and cathodic polyiodide shuttle mutually aggravate each other.
Zimian Jia +8 more
wiley +1 more source
ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du +9 more
wiley +1 more source
Ni‐Induced Interface Refinement Enhances Strength‐Ductility Synergy in LPBF‐Processed Ti‐Mo‐Ni Alloy
ABSTRACT Microstructural refinement is a common strategy for strengthening additively manufactured titanium alloys because it promotes phase nucleation. Reducing the α/β interfacial formation energy is an effective way to increase the nucleation rate.
An Li +6 more
wiley +1 more source
ABSTRACT The development of high‐performance and cost‐effective oxygen evolution reaction (OER) electrocatalysts is critical for the large‐scale deployment of green hydrogen technologies. Among various candidates, amorphous alloys have emerged as promising OER catalysts owing to their long‐range disordered atomic structures, high energy states, and ...
Bo Li +10 more
wiley +1 more source
ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian +6 more
wiley +1 more source
ABSTRACT Ultrathin sodium (Na) metal anodes (< 40 μm) with superior electrochemical performance are essential in developing high‐energy‐density sodium metal batteries (SMBs). Nonetheless, Metallic Na's poor processability hinders its practical application.
Hao Yao +6 more
wiley +1 more source
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye +5 more
wiley +1 more source
污水厂运行4年来,由于来水经常变化,监测分析方法有限,生化系统的平稳运行得不到保证,使出水质量受到一定影响。通过数据分析,结合实际操作,总结出优化操作方案,为生化系统的平稳运行和保证出水质量打下了基础。
李明, 李学军
doaj +2 more sources
本发明涉及协作机器人领域,具体地说是一种七自由度协作机器人构型优化综合方法,包括以下步骤,步骤一:建立七自由度机器人运动学模型及运动学性能评价指标;步骤二:对七自由度机器人进行构型综合,将七自由度机器人拆分为“肩肘”和“腕”两部分,并利用步骤一中的运动学性能评价指标分别对“肩肘”部和“腕”部进行构型综合,获得最优的“肩肘”部构型和“腕”部构型,并通过构型优化综合,将最优的“肩肘”部构型和“腕”部构型分别组合,并对组合后的七自由度机器人构型进行评估,获得最优的七自由度构型;步骤三 ...
胡明伟 +3 more
core +1 more source

