Results 31 to 40 of about 297,311 (213)

The Network Composition of Aggregate Unemployment [PDF]

SSRN Electronic Journal, 2016
We develop a theory of unemployment in which workers search for jobs through a network of firms, the labor flow network (LFN). The lack of an edge between two companies indicates the impossibility of labor flows between them due to high frictions.
Robert Axtell, Omar A. Guerrero, Eduardo Lopez   +2 more
openaire   +1 more source

Recycled asphalt mixture's discrete element model-based composite structure and mesoscale-mechanical properties

Case Studies in Construction Materials, 2023
To investigate the composite structure and mesoscale-mechanical properties of recycled asphalt mixture, this paper has established discrete element models of recycled asphalt mixture with distinct characteristics of new aggregates, recycled asphalt ...
Liwan Shi, Yuechan Wang, Hao Li, Hehao Liang, Bohuang Lin, Duanyi Wang   +5 more
doaj   +1 more source

Ratings and rankings: Voodoo or Science?

, 2012
Composite indicators aggregate a set of variables using weights which are understood to reflect the variables' importance in the index. In this paper we propose to measure the importance of a given variable within existing composite indicators via Karl ...
Agrast, Balinski, Bandura, Billaut, Bird, Bowman, Boyssou, Center for World-Class Universities, Decancq, Freedom House, Hacking, Hand, Hendrik, Leckie, Li, Munda, Munda, Nardo, Organisation for Economic Co-operation and Development, Pearson, Plischke, Ratto, Ratto, Rotberg, Ruppert, Ruppert, Saaty, Saaty, Saisana, Saisana, Saisana, Saltelli, Saltelli, Saltelli, Saltelli, Saltelli, Sobol’, Stanley, Tarantola, Times Higher Education Supplement, Toulmin, United Nations Development Programme, United Nations Development Programme, van de Kerk, Wang, Wooldridge, World Economic Forum, Xu   +47 more
core   +1 more source

Influence of coarse aggregates’ morphological characteristics on the pore structures of skeleton in porous asphalt mixture

Case Studies in Construction Materials
Coarse aggregates play a significant role in configuring the pore structures in the porous asphalt mixture (PAM). This study aims to reveal the influence of coarse aggregates’ morphological characteristics on the pore features in the coarse aggregate ...
Yang Liu, Zhendong Qian, Minghui Gong, Dong Zheng, Cai Xu   +4 more
doaj   +1 more source

Response of soft rock and sand compound soil structure to freeze-thaw cycles in Mu Us Sandy Land, China

Frontiers in Environmental Science
In order to accurately understand the relationship between soil structure and climate feedback in the frozen soil area of Mu Us Sandy Land, China, and to explore the key control factors for the structural stability of soft rock and sand compound soil ...
Haiou Zhang, Haiou Zhang, Haiou Zhang, Haiou Zhang, Tingting Cao, Tingting Cao, Tingting Cao, Tingting Cao, Zhen Guo, Zhen Guo, Zhen Guo, Yingguo Wang, Yingguo Wang, Yingguo Wang, Xiandong Hou, Xiandong Hou, Xiandong Hou   +16 more
doaj   +1 more source

Study of gypsum composites with fine solid aggregates at elevated temperatures

Science and Engineering of Composite Materials, 2021
The structure and behaviour of two gypsum composites after exposition to elevated temperatures were investigated. The silica sand and fine basalt aggregate were used as solid fillers.
Doleželová Magdaléna, Scheinherrová Lenka, Vimmrová Alena   +2 more
doaj   +1 more source

Performance of composite sand cement brick containing recycled concrete aggregate and waste polyethylene terepthalate [PDF]

, 2018
The reuse and recycling of waste materials from construction and demolition waste is one of the new concepts for brick manufacturing production. Construction and demolition debris refers to waste materials that result from the construction, renovation ...
Azmi, Nurul Bazilah
core  

Ferromagnetic Wires Composite Media with Tunable Scattering Spectra at Microwaves

, 2006
We demonstrate composite media with ferromagnetic wires that exhibit a frequency region at the microwave regime with scattering spectra strongly dependent on an external magnetic field or stress.
A. P. Zhukov, C. Garcia, D. Hull, D. P. Makhnovskiy, D. P. Makhnovskiy, G. H. Bryant, J. Gonzalez, J. M. Ziman, L. V. Panina, L. V. Panina, M. Born, S. I. Sandacci, T. K. Chang   +12 more
core   +1 more source

The use of Bioceramics as root-end filling materials in periradicular surgery: a literature review [PDF]

, 2018
Introduction: Periradicular surgery involves the placement of a root-end filling following root-end resection, to provide an apical seal to the root canal system. Historically several materials have been used in order to achieve this seal.
Abusrewil, Sumaya M., McLean, William, Scott, J. Alun   +2 more
core   +1 more source

Physical-mechanical potential properties of wastes from glass lapping to produce mortar as partial replacement of the conventional aggregate

Revista IBRACON de Estruturas e Materiais, 2020
Glass lapping residues (RLV) are fine tailings from the processing of glass for civil construction, commonly non-recyclable. The present study analyzed the use of these residues in Portland cement mortar composition, partially replacing the conventional ...
U. G. RIBEIRO, D. F. SANTOS
doaj   +2 more sources