Results 121 to 130 of about 150,279 (290)

Preliminary study on uniqueness of stress-strain envelope curves of sand

Yantu gongcheng xuebao
The uniqueness of the stress-strain envelope curves of sand under cyclic unloading is of great importance in understanding the inherent properties of the sand.
SHAO Longtan 1, 2 , GAO Rui 1, 2, XIA Pingxin 3, GUO Xiaoxia 1, 2, SUN Yanpu 1, 2
doaj   +1 more source

Flexural performance of concrete‐filled steel tubular beams with wood chip aggregate

Structural Concrete, EarlyView.
Abstract This study investigates the flexural performance of concrete‐filled steel tubular (CFST) beams with partial replacement of aggregates by wood chips (0%–25%) through experimental and numerical analysis. This study is novel in that it experimentally and numerically investigates the flexural behavior of CFST beams with partial replacement of ...
Mizan Ahmed, Mohamed Emara, Vipulkumar Ishvarbhai Patel, Wensu Chen, Xihong Zhang, Faiz Shaikh, Ahmed Hamoda   +6 more
wiley   +1 more source

Using programmable infusion pump in avian species – a validation methodology in geese

Wildlife Biology, EarlyView.
Wildlife face anthropogenic and natural stressors that affect their physiology and behaviour. The activity of the hypothalamic–pituitary–adrenal axis and glucocorticoid (GC) production is intrinsically linked with energy regulation and environmental stressors.
Myriam Trottier‐Paquet, Maude Gauthier‐Bouchard, Akiko Kato, Charline Parenteau, Frédéric Angelier, Pierre Legagneux   +5 more
wiley   +1 more source

Triaxial digital fluxgate magnetometer for NASA applications explorer mission: Results of tests of critical elements [PDF]

Tests performed to prove the critical elements of the triaxial digital fluxgate magnetometer design were described. A method for improving the linearity of the analog to digital converter portion of the instrument was studied in detail.
Mcleod, M. G., Means, J. D.
core   +1 more source

Relationships of Cognitive Function With Subsequent Device‐Measured Physical Activity and Sedentary Time in Healthy Individuals and Those With Bipolar Disorder: Findings From the UK Biobank

Acta Psychiatrica Scandinavica, EarlyView.
ABSTRACT Background In bipolar disorder (BD), physical inactivity and sedentary behaviour are prevalent and have been linked to BD's cognitive symptoms, although the directionality of these links is not clear. This proof‐of‐concept study examined whether cognitive function during mid‐ and later‐life was prospectively related to physical activity and ...
Elysha Ringin, David W. Dunstan, Denny Meyer, Roger S. McIntyre, Neville Owen, Michael Berk, Susan L. Rossell, Mats Hallgren, Tamsyn E. Van Rheenen   +8 more
wiley   +1 more source

Computational Investigation on the Combined Effect of Applied Strain and Pore Configuration on Strain Concentrators in Additively Manufactured Metals

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Metal additive manufacturing (AM) provides a pathway for creating highly optimized components that would be difficult to produce using traditional manufacturing methods. However, regardless of printing parameters or postprocessing, porosity remains a prevalent challenge in AM components because strain concentrates in the vicinity of the pore ...
Erick Adan Ramirez, Saikumar Reddy Yeratapally, George Robert Weber, Kenji Shimada   +3 more
wiley   +1 more source

Characterization of Asphalt Treated Base Course Material [PDF]

, 2010
INE/AUTC 11 ...
Li, Peng, Liu, Juanyu
core  

The Ecology of Human Sleep (EcoSleep) Cohort Study: Protocol for a longitudinal repeated measurement burst design study to assess the relationship between sleep determinants and outcomes under real‐world conditions across time of year

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The interplay of daily life factors, including mood, physical activity, or light exposure, influences sleep architecture and quality. Laboratory‐based studies often isolate these determinants to establish causality, thereby sacrificing ecological validity.
Anna M. Biller, Nayab Fatima, Chrysanth Hamberger, Laura Hainke, Verena Plankl, Amna Nadeem, Achim Kramer, Martin Hecht, Manuel Spitschan   +8 more
wiley   +1 more source

Development and mechanical properties of construction materials from lunar simulants [PDF]

The development of construction materials such as concrete from lunar soils without the use of water requires a different methodology than that used for conventional terrestrial concrete. Currently, this research involves two aspects: (1) liquefaction of
Desai, Chandra S.
core   +1 more source

On a damage-plasticity approach to model concrete failure

, 2009
A damage-plasticity constitutive model for the description of fracture in plain concrete is presented. Two approaches, the local model comprising the adjustment of the softening modulus and the nonlocal model based on spatial averaging of history ...
Grassl, Peter
core   +1 more source