Results 11 to 20 of about 893,942 (146)
ABSTRACT An ultra‐high as‐deposited tensile strength of 1408 MPa—the highest reported value for laser‐directed energy deposition (L‐DED) fabricated Ti2AlNb alloy—is achieved in this study. The as‐deposited microstructure consists of coarse B2 grains with a high density of fine acicular O phase precipitates within the grains, along with a brittle α2 ...
Ximiao He +7 more
wiley +1 more source
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie +11 more
wiley +1 more source
ABSTRACT Ultrathin, lightweight, and mechanically compliant electromagnetic interference (EMI) shields are increasingly required for high‐frequency electronic devices. However, conventional metallic shields predominantly rely on conductivity‐driven reflection mechanisms, which become ineffective at reduced thickness and may cause severe secondary ...
Zida Zhang +7 more
wiley +1 more source
Magnetization Dynamics Control for Noise Reduction in Fluxgate Sensors
ABSTRACT Fluxgate sensors are indispensable for the detection of weak magnetic fields. However, their noise performance remains constrained by an incomplete understanding of the interplay between the high‐frequency magnetization dynamics of the core material and the overall sensor behavior.
Chunyang Mu +11 more
wiley +1 more source
在铝型材的表面处理中产生大量的酸碱废液,如不能有效地处理回收,将造成严重的环境污染和资源浪费。介绍了调节—中和混凝—过滤工艺处理铝型材生产废水工艺,处理后的废水达到生产工业用水标准,且工艺流程简单、投资少。讨论了废水处理工艺主要影响因素并提出了较佳的工艺控制参数。
刘宏, 向寓华, 刘碧雄
doaj +2 more sources
ABSTRACT Solar‐blind ultraviolet (UV) photodetectors (SBPDs) play a critical role in applications including UV communication and fire warning systems. Gallium oxide (Ga2O3) has emerged as a promising material due to its wide bandgap and low cost, but suffers from high dark current and slow response speed caused by oxygen vacancy (VO) defects. This work
Yuhao Lin +14 more
wiley +1 more source
ABSTRACT Precipitation of isothermal ω phase is an effective way to strengthen the metastable β‐Ti alloys but generally severely embrittles the materials by suppressing stress‐induced martensitic transformation and deformation twinning. Here, we architect heterogeneous structures with tailored ω phase in a metastable β‐Ti‐20Zr‐12Nb‐2Sn alloy via ...
Yang Liu +6 more
wiley +1 more source
ABSTRACT Gradient structures (GS) introduced by plastic deformation have been shown to effectively enhance the surface properties of metallic materials. However, the GS fabricated by existing methods often suffers from limited hardening depth and limited control over the GS layer, which constrain their engineering applications.
Yansong Guo +5 more
wiley +1 more source
污水处理厂应急扩建工程一直是水处理行业的难点,尤其是多工艺之间的耦合调控为应急扩建带来更大的风险和不确定性因素。为控制厂外管网溢流污染,湖南某污水处理厂需在90 d内将处理规模从6.0×104 m3/d应急扩建至1.2×105 m3/d,且施工期间不能停产、减产,不能带来次生风险。针对多工艺耦合调控的难点,采用高浓度复合粉末载体生物流化床技术(HPB技术)对现主体工艺AAO进行原池挖潜,并新建一体化二沉池和滤布滤池,通过前后多工艺联动调控,成功实现该污水厂应急扩建翻倍和安全运行。建成后处理水量稳定达到1.
伍启文 +7 more
doaj +2 more sources
相比传统脱氮工艺,厌氧氨氧化(Anammox)以其低耗、高效和环境友好备受青睐,具有广阔的发展前景。基质NO2--N难获取,厌氧氨氧化菌(AAOB)生长缓慢且对环境敏感使反应器难启动和不完全脱氮限制因素阻碍了Anammox的工程应用。针对Anammox脱氮应用的限制因素,分析了短程硝化(PN)和短程反硝化(PD)途径获取NO2--N的调控,解析了反应器快速启动的环境因素、常用的反应器和高活性污泥,并介绍了PN+Anammox,PN+Anammox+反硝化(SNAD)和PD ...
蒙小俊, 郭楠楠, 黄志贵
doaj +2 more sources

