Results 41 to 50 of about 38,263 (298)

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Workability among migrant diabetic workers: An occupational health-clinic-based study, Kuwait.

open access: yesPLOS Global Public Health
Diabetes Mellitus (DM) can influence physical and mental health, and workability can be affected by how well workers can manage the disease. So, the aim was to assess workability and identify factors associated with decreased workability among migrant ...
Sarah A Bolbol   +4 more
doaj   +1 more source

Study of potential advantages of pre-soaking on the properties of pre-cast concrete made with recycled coarse aggregate

open access: yesMateriales de Construccion, 2016
Recycled aggregate (RA) from construction and demolition waste is traditionally used for the manufacture of concrete for different applications. Due primarily to high water content required by RA, the quality of the concrete is determined by the amount ...
Z. Sánchez-Roldán   +4 more
doaj   +1 more source

Energy Footprint of Mechanized Agricultural Operations

open access: yesEnergies, 2020
The calculation of the energy cost of a cultivation is a determining factor in the overall assessment of agricultural sustainability. Most studies mainly examine the entire life cycle of the operation, considering reference values and reference databases
Maria Lampridi   +3 more
doaj   +1 more source

Materials and Mix Optimization Procedures for PCC Pavements;TR-484, March 2006 [PDF]

open access: yes, 2006
Severe environmental conditions, coupled with the routine use of deicing chemicals and increasing traffic volume, tend to place extreme demands on portland cement concrete (PCC) pavements.

core  

Summary of Concrete Workability Test Methods [PDF]

open access: yes, 2003
This document describes 61 test methods for measuring concrete workability. Many more test methods have been developed for a single project or for a specific application and have been sparsely reported in the literature, if at all.
Koehler, Eric Patrick, Fowler, David W.
core   +1 more source

Systematic Exploration of 3D Concrete Printing Parameters for Conformal Printing on Sloped Surfaces

open access: yesAdvanced Robotics Research, EarlyView.
A conformal slicing algorithm is developed for robotic 3D concrete printing (3DCP) on sloped surfaces as a first step toward printing slab‐on‐grade foundations on uneven terrain. Systematic experiments quantify the effects of nozzle speed, extrusion rate, and toolpath direction on filament dimension and stability.
Paniz Farrokhsiar   +2 more
wiley   +1 more source

Development of Performance Properties of Ternary Mixtures and Concrete Pavement Mixture Design and Analysis (MDA): Effect of Paste Quality on Fresh and Hardened Properties of Ternary Mixtures, TPF-5(117), 2012 [PDF]

open access: yes, 2012
The purpose of this study was to investigate the effect of cement paste quality on the concrete performance, particularly fresh properties, by changing the water-to-cementitious materials ratio (w/cm), type and dosage of supplementary cementitious ...

core  

Workability Evaluation of Self Compacting Concrete

open access: yes, 2010
The compactibility, mobility and segregation stability of self compacting concrete (SCC) is essential for its quality control. Completely and reasonably workability evaluation to SCC has an obviously influence in concrete engineering field.
Min Hu, Xin Gu, Li Jiu Wang
core   +1 more source

Workability: The Path to Entrepreneurship [PDF]

open access: yes, 2016
Since the late twentieth century, it has been seen that the progress of information technology is changing everyday business. Advents such as telecommunications, for example, are increasing the speed of work, facilitating communication between people and
Leite, Emanuel   +5 more
core   +1 more source

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