Results 21 to 30 of about 93,292 (244)

Aggregate community properties and the strength of species’ interactions [PDF]

open access: yesProceedings of the National Academy of Sciences, 1998
Although humanity depends on the continued, aggregate functioning of natural ecosystems, few studies have explored the impact of community structure on the stability of aggregate community properties. Here we derive the stability of the aggregate property of community biomass as a function of species’ competition coefficients for a two-species ...
J B, Hughes, J, Roughgarden
openaire   +2 more sources

Aggregate-strength interaction test suite prioritization [PDF]

open access: yesJournal of Systems and Software, 2015
Combinatorial interaction testing is a widely used approach. In testing, it is often assumed that all combinatorial test cases have equal fault detection capability, however it has been shown that the execution order of an interaction test suite's test cases may be critical, especially when the testing resources are limited.
Rubing Huang   +4 more
openaire   +2 more sources

Effect of the Aggregate Size on Strength Properties of Recycled Aggregate Concrete [PDF]

open access: yesAdvances in Materials Science and Engineering, 2018
The study on preparation technology of recycled concrete with economical and technical feasibility has gained more serious attention in each country due to its involvement and effect on the environment protection and the sustainable development of human society. In this study, we conducted a control variable test to investigate and assess the influence
Ma Kang, Li Weibin
openaire   +2 more sources

Nanostructured high-performance concretes based on low-strength aggregates

open access: yesMagazine of Civil Engineering, 2022
In the modern world, construction is often located in remote and hard-to-reach regions, where there are no acceptable quality aggregates for concrete. The transportation of high-quality aggregates leads to a significant increase in the cost of concrete ...
Rassokhin Aleksandr   +2 more
doaj   +1 more source

Experimental Investigation of Concrete with Recycled Aggregates for Suitability in Concrete Structures

open access: yesApplied Sciences, 2019
This paper presents the experimental tests of concrete made on the recycled aggregates basis. Tests were carried out to determine the concrete suitability for construction purposes.
Arkadiusz Denisiewicz   +3 more
doaj   +1 more source

Parent Concrete Quality of Recycled Concrete Aggregates on Some Engineering Properties of Concrete

open access: yesJournal of Materials and Engineering Structures, 2022
This paper aims to investigate some properties of recycled aggregates concrete (RAC) containing various amount of recycled concrete aggregates (RCA) supplied from different parent concrete strength.
Houssam Eddine BENMILOUD   +3 more
doaj  

Feasibility and Safety of Somato‐Cognitive Coordination Therapy for Cerebellar Ataxia Following Pediatric Brain Tumor Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cerebellar ataxia after pediatric brain tumor treatment can cause persistent gait, balance, and speech impairment, yet no established rehabilitation strategy exists. Somato‐cognitive coordination therapy (SCCT) is a virtual reality–guided intervention designed to promote sensorimotor integration through visually constrained reaching
Masanobu Takeuchi   +10 more
wiley   +1 more source

Impact of Chemically Treated Waste Rubber Tire Aggregates on Mechanical, Durability and Thermal Properties of Concrete

open access: yesFrontiers in Materials, 2020
Studies have shown that the incorporation of waste tire rubber aggregates reduces the strength, increases permeability and decrease thermal conductivity of concrete.
Yih Chen Khern   +7 more
doaj   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei   +17 more
wiley   +1 more source

Sustainable normal and high strength recycled aggregate concretes using crushed tested cylinders as coarse aggregates

open access: yesCase Studies in Construction Materials, 2017
The paper reports on a research program that was designed at the American University of Beirut (AUB) to investigate the fresh and hardened mechanical properties of a high performance concrete mix produced with partial or full substitution of crushed ...
Bilal S. Hamad, Ali H. Dawi
doaj   +1 more source

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