Results 71 to 80 of about 3,346 (213)

Parameters for the Grinding Process in Vertical Mills Using Optimization Methods

Revista Técnica Energía
Vertical roller mills, VRMs, are widely used for grinding raw materials in factories engaged in the extraction and processing of minerals. Any machine used for grinding or crushing consumes around 30 to 40% of the energy of a factory.
Jorge Paredes, Jaime Cepeda, Jorge Lozada   +2 more
doaj   +1 more source

Metastable Polymers for Circular 3D Printing

Advanced Materials, EarlyView.
3D‐printed polymers are usually permanent and hard to recycle. Here, metastable polymers are designed to fall apart on demand. A chemical trigger unzips the printed material back into its original building blocks within minutes at room temperature.
Johannes Markhart, Philipp Mainik, Eva Blasco   +2 more
wiley   +1 more source

Dynamic characteristics of high speed grinding process of CFRP wheel and steel based wheel

Jin'gangshi yu moliao moju gongcheng, 2021
To explore the influence of CFRP grinding wheel and steel substrate grinding wheel on the dynamic characteristics of high-speed grinding process, a vibration test platform was built on the CNC camshaft grinding machine, and the dynamic characteristics of
YANG Huaiwen, FENG Wei, ZHU Jianhui, SHI Chaoyu, LIU Baoguo, WU Xiaolei, DING Hao   +6 more
doaj  

The Influence of Mesoscale Particle Structure on the Electrode Degradation and Resultant Electrochemistry of Lithium Ion Cells With Nickel Rich Lithium Nickel Manganese Cobalt Oxide Positive Electrodes

Advanced Materials Technologies, EarlyView.
Milled polycrystalline NMC811 cathode (MPC NMC) with smaller secondary particle and higher surface area had 1) greater cathode tortuosity, 2) reduced surface Ni on the cycled MPC cathodes consistent with surface reconstruction, and 3) increased Ni deposition from cathode‐anode crosstalk, manifesting in lower functional capacity and higher impedance ...
Edelmy J. Marin Bernardez, Andrew Nicoll, David J. Arnot, Armando Rodriguez Campos, Patrick J. Barry, Marie F. Millares, Cynthia Huang, Melissa A. Guercio, Grace K. Dono, Alexis Pace, Xianghui Xiao, Cherno Jaye, Conan Weiland, Jianming Bai, Hui Zhong, Michael Drakopoulos, Zhong Zhong, Nghia T. Vo, Xiao Tong, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi   +22 more
wiley   +1 more source

Finite Element Thermal Model and Experimental Verification for Constant Pressure Belt Grinding Process

工程科学与技术, 2012
:In order to study the relationships between the grinding temperature and grinding parameters for constant pressure grinding process, a finite element thermal model was derived and expressed. So the grinding process and quality was improved. Based on the
doaj  

A Review of Research on Multi-Objective Process Parameter Optimization Technology for Grinding Machining

Technologies
The optimization of grinding is a multi-objective problem characterized by high dimensionality, non-linearity, and complexity. Solving this multi-objective optimization (MOO) problem is one of the most challenging tasks in the field of mechanical ...
Xiao Yang, Zhaohui Deng, Decai Zhu, Rongjin Zhuo, Xipeng Xu, Wei Liu   +5 more
doaj   +1 more source

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

Advanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi, Ashley Vazquez, Alexander J. Choi, Dimitrios Karamichos, Jayoung Kim   +4 more
wiley   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

成形法磨削斜齿轮的齿形误差分析

Jixie chuandong, 2009
Many reasons influence the precision of the gear in the process of form grinding helical gear. According to the process of grinding, based on both the error of the grinding wheel axial sectional shape and the error of the relative position of grinding ...
张立功, 王军, 邓效忠
doaj  

Soil Inorganic Electron Acceptors and Carbon Substrates Hierarchically Govern Wetland Methanogenesis Temperature Response

Advanced Science, EarlyView.
ABSTRACT Wetlands constitute Earth's largest natural methane (CH4) source, yet projections of their climate feedback remain uncertain due to poorly constrained temperature sensitivity (Q10‐CH4) of microbial methanogenesis. While water table dynamics have been demonstrated to regulate wetland methanogenesis by altering key soil conditions such as ...
Shuying Qiu, Qingfang Jing, Xuhui Zhou, Xiaoxin Sun, Zhenyu Wei, Baizhi Jiang, Hongyang Chen   +6 more
wiley   +1 more source