Results 301 to 310 of about 451,537 (323)

Construction of an organic cage-based porous ionic liquid using an aminal tying strategy.

Mol Syst Des Eng
Kai A, Mroz A, Jelfs KE, Cooper AI, Little MA, Greenaway RL.   +5 more
europepmc   +1 more source

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Critical instability at moving keyhole tip generates porosity in laser melting

Science, 2020
Driving the pores away The formation of “keyholes” (vapor-filled depressions) during additive manufacturing leads to porosity, which degrades alloy performance, especially fracture properties, and remains a big challenge for the 3D printing of metals ...
Cang Zhao, N. Parab, Xuxiao Li, K. Fezzaa, W. Tan, A. Rollett, T. Sun   +6 more
semanticscholar   +1 more source

In-situ monitoring of melt pool images for porosity prediction in directed energy deposition processes

IISE Transactions, 2019
One major challenge of implementing Directed Energy Deposition (DED) Additive Manufacturing (AM) for production is the lack of understanding of its underlying process–structure–property relationship.
M. Khanzadeh, Sudipta Chowdhury, M. Tschopp, H. Doude, M. Marufuzzaman, L. Bian   +5 more
semanticscholar   +1 more source

Balancing Mechanical Stability and Ultrahigh Porosity in Crystalline Framework Materials.

Angewandte Chemie, 2018
A new mesoporous metal-organic framework (MOF; DUT-60) was conceptually designed in silico using Zn4 O6+ nodes, ditopic and tritopic linkers to explore the stability limits of framework architectures with ultrahigh porosity.
Ines M Hönicke, I. Senkovska, V. Bon, I. Baburin, Nadine Bönisch, S. Raschke, J. Evans, S. Kaskel   +7 more
semanticscholar   +1 more source

Deep learning reservoir porosity prediction based on multilayer long short-term memory network

Geophysics, 2020
The cost of obtaining a complete porosity value using traditional coring methods is relatively high, and as the drilling depth increases, the difficulty of obtaining the porosity value also increases. Nowadays, the prediction of fine reservoir parameters
Wei Chen, Liuqing Yang, Bei Zha, Mi Zhang, Yangkang Chen   +4 more
semanticscholar   +1 more source

Vibration analysis of functionally graded graphene platelet reinforced cylindrical shells with different porosity distributions

, 2019
This paper studies free vibrational behavior of porous nanocomposite shells reinforced with graphene platelets (GPLs). GPLs are uniformly and nonuniformly distributed thorough the thickness direction.
M. Barati, A. Zenkour
semanticscholar   +1 more source

Influences of porosity on dynamic response of FG plates resting on Winkler/Pasternak/Kerr foundation using quasi 3D HSDT

, 2019
This work investigates the effect of Winkler/Pasternak/Kerr foundation and porosity on dynamic behavior of FG plates using a simple quasi-3D hyperbolic theory. Four different patterns of porosity variations are considered in this study. The used quasi-3D
Farouk Yahia Addou, Mustapha Meradjah, A. A. Bousahla, A. Benachour, F. Bourada, A. Tounsi, S. R. Mahmoud   +6 more
semanticscholar   +1 more source

Biomass Organs Control the Porosity of Their Pyrolyzed Carbon

, 2017
In most electrochemical energy storage and conversion devices, nanostructured carbon materials play essential roles. One‐step carbonization of some biomass materials has recently been demonstrated as a promising route to produce high surface area carbon ...
Yao Zhang, Sisi Liu, Xiaoyu Zheng, Xiao Wang, Yue Xu, Haoqing Tang, F. Kang, Quan-hong Yang, Jiayan Luo   +8 more
semanticscholar   +1 more source

Fluid Permeability of Graded Porosity Scaffolds Architectured with Minimal Surfaces.

ACS Biomaterials Science & Engineering, 2019
The natural local porosity variation in the native tissue can be replicated by graded porosity scaffolds. Scaffolds with radial porosity distribution can be a solution to improve both mechanical and biological functions of the biomimetic scaffolds.
Masoud Zhianmanesh, M. Varmazyar, H. Montazerian   +2 more
semanticscholar   +1 more source

An overview on engineering the surface area and porosity of biochar.

Science of the Total Environment, 2020
Lijian Leng, Qin-pan Xiong, Lihong Yang, Hui Li, Yaoyu Zhou, Weijin Zhang, S. Jiang, Hailong Li, Hua-jun Huang   +8 more
semanticscholar   +1 more source