Results 111 to 120 of about 16,681 (248)

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

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

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

Permanent deformation characterization of bituminous mixtures: laboratorial tests [PDF]

, 2005
In the last years some laboratorial tests are used to predict the permanent deformation behaviour of bituminous mixtures. Among those tests the Wheel Tracking test, the Cyclic Compression Test (Uniaxial and Triaxial) and the Repetitive Shear at ...
Gardete, Dinis, Pais, Jorge C., Santos, Luís Picado   +2 more
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The Cognitive Costs of Sleep Deprivation in Ultra‐Endurance Cycling: Insights From the Race Across France

Journal of Sleep Research, EarlyView.
ABSTRACT For athletes in endurance sports, who compete over several days and in unpredictable conditions, managing sleep–wake rhythms is critical to ensure optimal performance and minimise the risks to safety. Despite its growing popularity, the role of sleep management on ultracycling performance has received little attention.
Rémy Hurdiel, Courtney Kurinec, Thierry Pezé, Charlotte Bonduelle, Valentin Bourlois   +4 more
wiley   +1 more source

Failure analysis of conveyor chain links: a case study at Top Glove Sdn. Bhd. [PDF]

, 2013
This case study is to investigate the causes of failure of chain system through characterization on the failure component. The failures that occur are relate to welding because this dipping latex industry use customized chain that have to be welded at ...
Haris, Nur Ismalina
core  

Differential Responsiveness to Exercise and Cognitive Remediation in Physical Health in People With Schizophrenia: Results From the CORTEX‐SP Study

European Journal of Sport Science, Volume 26, Issue 6, June 2026.
ABSTRACT Non‐pharmacological interventions, such as exercise and cognitive remediation, have been widely investigated in people with schizophrenia (SZ), showing beneficial effects and supporting their role as complementary approaches to pharmacological treatment.
Mikel Tous‐Espelosin, Nagore Iriarte‐Yoller, Agurne Sampedro, Iker Lasa‐Sagaseta, Cristóbal Pavon, Natalia Ojeda, Pedro Sanchez, Javier Peña, Sara Maldonado‐Martín   +8 more
wiley   +1 more source

Capturing Complex Rate‐Dependent Behaviors of Saturated Clays: A Fractional Consistency Kinematic Hardening Viscoplastic Approach

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 8, Page 3281-3296, 10 June 2026.
ABSTRACT Saturated high plasticity clays show complex nonlinear, rate‐dependent, and hysteresis behaviors under non‐monotonic stress paths, requiring advanced mathematical constitutive equations for accurate description. Taking into account the inherent advantages of kinematic hardening mechanisms in simulating complex stress histories, this paper ...
Wei Cheng, Zhen‐Yu Yin
wiley   +1 more source

Elastoplasticity Informed Kolmogorov–Arnold Networks Using Chebyshev Polynomials

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 8, Page 3331-3354, 10 June 2026.
ABSTRACT Multilayer perceptron (MLP) networks are predominantly used to develop data‐driven constitutive models for granular materials. They offer a compelling alternative to traditional physics‐based constitutive models in predicting non‐linear responses of these materials, for example, elastoplasticity, under various loading conditions. To attain the
Farinaz Mostajeran, Salah A. Faroughi
wiley   +1 more source

A damage-plasticity model for the dynamic failure of concrete

, 2011
A constitutive model based on the combination of damage mechanics and plasticity is developed to analyse concrete structures subjected to dynamic loading. The aim is to obtain a model, which requires input parameters with clear physical meanings.
Grassl, Peter, Gylltoft, Kent, Nystrom, Ulrika, Rempling, Rasmus   +3 more
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