Results 151 to 160 of about 588,723 (351)

A micro-econometric model of a short run cost function with unobserved heterogeneity [PDF]

Unobserved plant level heterogeneity and discrete production processes can produce problems for estimation. A structural model of discrete production decisions by heterogeneous plants is constructed and, as a case study, estimated for the U.S.
Prentice, David
core   +1 more source

Limbah Koran Sebagai Bahan Campuran Pembuatan Papan Plafon [PDF]

, 2017
The material of ceiling cover in a room could be plywood, asbestos, gypsum, glass reinforce cement, et cetera. This research was triggered by the large number of newspaper waste which was improperly dumped and caused contamination to the environment ...
Maisytoh, P. (Putri), Nawastriani, I. (Intan), Sagala, R. (Riolan), Saputra, A. A. (Alfian), Sarito, S. (Sarito)   +4 more
core  

Racial Capitalism and the Workhouse–Plantation Nexus in the Atlantic World

Antipode, EarlyView.
Abstract This paper re‐examines the British workhouse within the framework of racial capitalism and the Atlantic world. Traditionally understood as a domestic mechanism for managing poverty and labour in an era of industrial capitalism, we argue the workhouse was deeply intertwined with global systems of racial exploitation and accumulation from the ...
Andrew Williams, Jon May
wiley   +1 more source

Plastic shrinkage cracking and bleeding of concrete prepared with alkali activated cement

Heliyon, 2019
Restrained shrinkage cracking that appears on concrete surfaces during construction, or while concrete in the curing process adversely affect the long-term durability and other performance attributes of concrete-based-infrastructures.
Faris Matalkah, Yaser Jaradat, Parviz Soroushian   +2 more
doaj  

Tests and Constitution of Portland Cement [PDF]

Scientific American, 1902
n ...
openaire   +2 more sources

Modulation of primary human apical papilla stem cells: Influence of Enterococcus faecalis, oxygen levels, and calcium silicate‐based cements

European Journal of Oral Sciences, EarlyView.
Abstract Stem cells from the apical papilla (SCAP) are essential for regenerative endodontic treatment. Although mineral trioxide aggregate (MTA) and Biodentine are widely used in regenerative endodontic treatment procedures, their effects on SCAP remain unclear.
Olena Rakhimova, Valeriia Zymovets, Lahood Abdalla, Bagir Soltani, Malin Brundin, Peyman Kelk, Nelly Romani Vestman   +6 more
wiley   +1 more source

Signal noise estimation and removal of sub‐mm 3D pavement texture data using 1D residual denoising network

Computer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Signal noise removal is an indispensable and critical procedure in obtaining clean pavement texture data for reliable pavement evaluation and management. Nevertheless, the presently established denoising approaches to pavement texture data still rely on traditional techniques that have long struggled with removing noise accurately and ...
Guolong Wang, Kelvin C. P. Wang, Guangwei Yang, Joshua Q. Li, Amir Golalipour   +4 more
wiley   +1 more source

Evaluation of Dust Concentrations in an Iranian Portland Cement Industry [PDF]

Long term exposure to high levels of cement dust is one of the most important environmental risk factor in cement industries that adversely affect employees' respiratory system.
حضرتی, صادق, رحیم زاده, سهیلا   +1 more
core  

Machine learning models for predicting the International Roughness Index of asphalt concrete overlays on Portland cement concrete pavements

Computer-Aided Civil and Infrastructure Engineering, EarlyView.
ABSTRACT Although estimating the International Roughness Index (IRI) is crucial, previous studies have faced challenges in addressing IRI prediction for asphalt concrete (AC) overlays on Portland cement concrete (PCC) pavements. This study introduces machine learning to predict the IRI of AC overlays on PCC pavements, focusing on incorporating pre ...
K. Kwon, Y. Yeom, Y. J. Shin, A. Bae, H. Choi   +4 more
wiley   +1 more source