Results 81 to 90 of about 3,504 (250)

Power spectrum density characterization of grinding wheel surface in ultrasonic vibration spiral grinding

Jin'gangshi yu moliao moju gongcheng, 2021
During the ultrasonic vibration spiral grinding process, the surface topography of the grinding wheel varies complicatedly. To accurately characterize the characters of the grinding wheel surface, a power spectral density (PSD) analysis method was ...
WANG Qiuyan, LIANG Zhiqiang, BAI Shuowei, WU Yongbo, JIA Shun   +4 more
doaj  

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

Carbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar, Seul‐Yi Lee, Roop L. Mahajan, Soo‐Jin Park   +3 more
wiley   +1 more source

Simulation of micro contact based on interacting force in self rotating grinding of silicon wafer

Jin'gangshi yu moliao moju gongcheng, 2016
Self rotating grinding with cup diamond wheel is a typical ultra precision grinding process for silicon wafer.The simulation model based on the force of micro contact between wheel micro unit and silicon wafer is established from the stable ductile ...
REN Qinglei, WEI Xin, XIE Xiaozhu, HU Wei   +3 more
doaj  

One hundred years of teaching, research, and innovation in chemical engineering at the Faculty of Chemistry, National Autonomous University of Mexico (UNAM): Birthplace and enduring leadership of the discipline in Mexico

The Canadian Journal of Chemical Engineering, EarlyView.
The teaching of chemical engineering in Mexico started in 1925 at the Faculty of Chemistry (FQ) of the National Autonomous University of Mexico (UNAM). Academic institutions, research centres, chemical companies, technological developments, highly trained personnel, and scientific contributions are part of the legacy from FQ‐UNAM.
Patricia Pérez‐Salinas, Alberto Rosas‐Aburto, Martín G. Hernández‐Luna, Aida Gutiérrez‐Alejandre, Eduardo Vivaldo‐Lima   +4 more
wiley   +1 more source

Ultra-precision grinding process and compensation of cylindrical structure array mold

Materials & Design
WC-Co carbide cylindrical array molds are essential for the high-efficiency manufacturing of high-precision optical lenses. However, due to the extreme hardness, brittleness, and complex dynamic mechanical response of the material, achieving high ...
Peng Gu, Kaixuan Zhou, Zhiyuan Li, Andrea Mura, Rumeng Yang, Pengfei Zhang, Yingchen Sun, Chuanmin Zhu   +7 more
doaj   +1 more source

Multi‐factor coupling effects in hydraulic fracturing of laminated shale: Experimental insights and physics‐informed neural network‐driven optimization

Deep Underground Science and Engineering, EarlyView.
This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang, Guoyao Xu, Liyuan Liu, Yao Zhang, Sitao Zhu, Hongyang Chu, Kaikai Zhao   +6 more
wiley   +1 more source

Lithium Metal Anode Fabrication: Methods, Challenges, and Strategies

EcoEnergy, EarlyView.
Schematic illustration of four representative fabrication techniques for thin lithium metal anodes: extrusion, molten lithium infusion, electroplating, and physical vapor deposition (PVD). ABSTRACT The pursuit of ultra‐high energy‐dense lithium‐metal batteries (LMBs) has reignited the drive to fabricate ultrathin high‐quality lithium metal anodes. This
Ji Hyun Baek, Mi Ji Kang, Ho Won Jang
wiley   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Study on surface quality of zirconia ceramics used for bearing ground by diamond grinding wheel

Jin'gangshi yu moliao moju gongcheng, 2019
To obtain a high quality surface in the grinding of zirconia ceramics, single factor experiments were used to study the effects of grinding depth, grinding wheel linear speed and workpiece feed speed on the surface quality of zirconia ceramics in ...
LI Songhua, HAN Guangtian, SUN Jian, CHEN Wenzheng, WANG Kechong   +4 more
doaj  

Interface‐Engineered MXene/g‐C3N4 Heterostructures for Energy and Environmental Applications

EcoEnergy, EarlyView.
This review highlights how interface engineering in MXene/g‐C3N4 heterostructures regulates charge transfer, band alignment, and surface chemistry, enabling broad applications in photocatalytic conversion, environmental remediation, energy storage, and multifunctional sensing/therapy. ABSTRACT Two‐dimensional MXene/g‐C3N4 heterostructures have recently
Feng Wang, Geng Liu, Xiaoqiang An
wiley   +1 more source