Results 261 to 270 of about 1,022,967 (317)
The anti-crystal engineering principles of imidazolium cations for ionic liquids.
CrystEngCommHillesheim PC, Mirjafari A.
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Accounts of Chemical Research, 2020
ConspectusOptoelectronic material properties are governed by the whole collective of organic moieties, and these aggregate states present the characteristic performance of extended assemblies with different molecular packing, not only of single molecules
Qianqian Li, Zhen Li
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ConspectusOptoelectronic material properties are governed by the whole collective of organic moieties, and these aggregate states present the characteristic performance of extended assemblies with different molecular packing, not only of single molecules
Qianqian Li, Zhen Li
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Effect of natural and recycled aggregate packing on properties of concrete blocks
, 2021Recycled aggregate (RA) could be re-utilized in concrete paving blocks. However, the use of RA in concrete might lead to inferior performance, which constitutes a major barrier in the wider application of recycled aggregate concrete (RAC). To tackle this
S. Chu, C. Poon, C. Lam, Long Li
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, 2020
Powder spreading is an essential procedure in powder-bed-based additive manufacturing, and the resultant packing quality of the powder layer has important effects on the quality of the final products.
Hui Chen +5 more
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Powder spreading is an essential procedure in powder-bed-based additive manufacturing, and the resultant packing quality of the powder layer has important effects on the quality of the final products.
Hui Chen +5 more
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, 2020
It has been extensively recognized that the water-to-cement (w/c) ratio, solid content, and particle characteristics of tailings have substantial effects on the fluidity behaviour of cemented paste backfill (CPB). However, it is difficult to evaluate the
Jingping Qiu +4 more
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It has been extensively recognized that the water-to-cement (w/c) ratio, solid content, and particle characteristics of tailings have substantial effects on the fluidity behaviour of cemented paste backfill (CPB). However, it is difficult to evaluate the
Jingping Qiu +4 more
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Packing Arrays and Packing Designs
Designs, Codes and Cryptography, 2002For parameters for which orthogonal arrays do not exist, one may study related packing arrays. A packing array is a \(k \times b\) array with \(q\)-ary entries and with the property that in every \(t \times b\) subarray, every \(t \times 1\) column vector appears at most once. One usually wants to maximize \(b\) for given parameters.
Stevens, Brett, Mendelsohn, Eric
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Optimized design of ultra-high performance concrete (UHPC) with a high wet packing density
Cement and Concrete Research, 2019This study presents an optimized design method in developing ultra-high performance concrete (UHPC) with high wet packing density, in which the multiply effects of solid and liquid phases on UHPC packing mode are considered.
Xinpeng Wang +6 more
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International Journal of Modern Physics B, 2004
Phyllotaxis of plant organs, bacterial ordering and animal coat patterns are analyzed for homogeneity and density. The patterns are approximated by 15 tiles and characterized by the self-coordination numbers T1, T2, T3 of the nearest, next-nearest and third neighbors of the vertices of the tiles.
Hauck, J., Mika, K.
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Phyllotaxis of plant organs, bacterial ordering and animal coat patterns are analyzed for homogeneity and density. The patterns are approximated by 15 tiles and characterized by the self-coordination numbers T1, T2, T3 of the nearest, next-nearest and third neighbors of the vertices of the tiles.
Hauck, J., Mika, K.
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Approximation and online algorithms for multidimensional bin packing: A survey
Computer Science Review, 2017The bin packing problem is a well-studied problem in combinatorial optimization. In the classical bin packing problem, we are given a list of real numbers in ( 0 , 1 ] and the goal is to place them in a minimum number of bins so that no bin holds numbers
H. Christensen +3 more
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Powder Technology, 2019
The addition of fibres to concrete can significantly improve the hardened properties but may adversely affect the fresh properties. Apart from entangling with each other to hinder the flow of fresh concrete, the fibres might also interfere with the ...
L. G. Li, H. Zhuo, J. Zhu, A. Kwan
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The addition of fibres to concrete can significantly improve the hardened properties but may adversely affect the fresh properties. Apart from entangling with each other to hinder the flow of fresh concrete, the fibres might also interfere with the ...
L. G. Li, H. Zhuo, J. Zhu, A. Kwan
semanticscholar +1 more source