Results 31 to 40 of about 295,094 (360)

The macroeconomic cost of catastrophic pollinator declines [PDF]

, 2016
We develop a computable general equilibrium (CGE) approach to assess the macroeconomic impacts of productivity shocks due to catastrophic losses of pollination ecosystem services at global and regional scales.
Bauer, Dana Marie, Sue Wing, Ian
core   +1 more source

Numerical Simulation of Pervious Concrete Based on Random Pore Model

Advances in Civil Engineering, 2020
The features of the pores in pervious concrete have a great influence on the mechanical property of the pervious concrete. In this study, a finite element model (FEM) with random pores has been used to simulate the mechanical characteristics of pervious ...
Jingsong Shan, Jinle He, Feng Li
doaj   +1 more source

Nanoparticles for composites: Aggregates and agglomerates

, 2009
Adrian Camenzind
openalex   +2 more sources

Interface-Based Service Composition with Aggregation

, 2012
Service-oriented architectures (SOAs) usually comprehend in-the- middle entities such as proxies or service mediators that compose services abstracting from the order in which they exchange messages. Although widely used, these entities are usually implemented by means of ad-hoc solutions.
DALLA PREDA, MILA, GABBRIELLI, MAURIZIO, Claudio Guidi, MAURO, JACOPO, Fabrizio Montesi   +4 more
openaire   +4 more sources

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

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

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

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