Results 21 to 30 of about 7,074 (108)
, 2022 Lithium-ion batteries are widely used as energy storage and dynamic power, while the capacity life of battery is one of the key factors affecting its further application.
Chen, Haofeng +3 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
wiley +1 more source
Dynamic evolutionary patterns of high-temperature steam seepage and thermal strains of coals during heat injection [PDF]
Background Thermal stimulation of coal seams using high-temperature steam is recognized as a highly promising technology used to increase gas production.
Jinsheng CHEN +6 more
core +1 more source
Rare 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
Rare 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
Rare 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
, 2011 【中文摘要】 加工中机床热误差是影响机床加工精度稳定性的关键因素,对其进行准确的分析至关重要。文章运用ANSYS软件建立超精密磨床主轴部件的有限元模型,分析主轴热源及初始条件,边界条件,通过计算得到磨床主轴的温度场、热应力及热变形量。分析结果说明了热误差为超精密磨削的主要误差,为后期加工和试验分析提供了参考依据。863计划重点项目课题 ...
唐旎, 郭隐彪, 陈真
core
Microstructure and susceptibility to hot tearing of K424 nickel-based superalloys for turbocharger turbine wheels [PDF]
, 2016 Hot tearing tends to occur when K424 superalloy is used for a turbocharger turbine wheel. To solve this problem,the alloy characteristics of K424 and K418 superalloys and the factors impacting the susceptibility to hot tearing were studied by ...
DONG Jian-xin +4 more
core +1 more source
Computer-aided Numerical Analysis of the Arc Welding Process for the Pole-structure [PDF]
, 2006 由于焊接技术在工业中的应用日益广泛，对焊件质量的要求也越来越高，杆件的焊接加工量很大，但存在诸多技术问题亟待解决。在焊接的实测研究在技术上仍存在较大难度的情况下，数值分析模拟不失为一种可取的研究手段。针对当前对杆件焊接的数值模拟还比较少，本文对以A3钢为材料的杆件对接焊过程进行了有限元仿真。本文采用大型通用有限元分析软件ANSYS，用参数化命令流方式编程，对焊接模型进行实体建模，并通过网格控制对其进行不均匀网格划分以形成合理的有限元网格模型。由于高温时材料属性参数的数据较为欠缺 ...
戴倩
core
Influence of coal seam bedding on the effect of fracturing coal and enhancing permeability by microwave [PDF]
As a typical structural weak surface, bedding is ubiquitous in coal seams. The relative mechanical properties between coal seam bedding and coal matrix are the key to determining the effect of enhancing permeability by microwave in coal seams with ...
Guozhong HU +6 more
core +1 more source