Now showing items 1-10 of 510
Triaxial deformation behavior of bituminous mixes
(ASCE-AMER SOC CIVIL ENGINEERS, 2010-02-01)
The triaxial compressive response of bituminous mixes with volume fractions of aggregate in the range 52 to 85% was investigated over a wide range stresses and strain rates. The types of loadings considered include triaxial ...
Influencia de la rugosidad, relación de aspecto y número de Reynolds en los esfuerzos cortantes
(Ciencia e Ingeniería, 2010)
Scale model to measure stress under circular footings resting on sand
(Taylor and Francis Ltd., 2018-10)
This paper presents the results of a series of load tests carried out with a foundation model supported by sand. The aim of this study is to measure the stresses in the soil that occur when applying loads with a circular ...
How does early maternal separation and chronic stress in adult rats affect the immunoreactivity of serotonergic neurons within the dorsal raphe nucleus?
(Taylor & Francis Ltd, 2018-01)
Vulnerability to emotional disorders like depression derives from interactions between early and late environments, including stressful conditions. The serotonin (5HT) system is strongly affected by stress and chronic ...
Determination of Residual Stresses in High Speed Milled Aluminium Alloys Using a Method of Indent Pairs
An improved method of indent pairs is utilised to determine residual stresses in high speed milling specimens of AA 6082-T6 and AA 7075-T6 aluminium alloys. To carry out the measurement procedure, this approach does not ...
Links between fear of humans, stress and survival support a non-random distribution of birds among urban and rural habitats
(Nature Publishing Group, 2015-09-08)
Urban endocrine ecology aims to understand how organisms cope with new sources of stress and maintain allostatic load to thrive in an increasingly urbanized world. Recent research efforts have yielded controversial results ...
Do species' strategies and type of stress predict net positive effects in an arid ecosystem?
(Ecological Society of America, 2017-03)
A proposed refinement to the stress-gradient hypothesis requires consideration of the strategies of the interacting species and the characteristics of the stress factors. While the strength and direction of these interactions ...
Niche dynamics in amphitropical desert disjunct plants: Seeking for ecological and species‐specific influences
Numerous studies have assessed whether species niches are conserved in geographically separated regions. However, most of them were performed on invasive species, with the limitation that such species have likely not yet ...
Numerical experiments on the determination of stress concentration factors in orthotropic perforated plates subjected to in plane loading
As it is known, laminated composite materials are increasingly used in many technological applications, and in some instance, cutouts must be made into laminated panels for practical reasons, changing the stress distribution. ...
Energy and distribution in subterranean rodents: sympatry between two species of genus Ctenomys
(Elsevier Science Inc., 2007-08)
The low basal metabolic rate (BMR) observed in subterranean rodents, compared to that of surface-dwelling species of comparable size, has been proposed to be an adaptation to underground life. Two main hypotheses have been ...