Results 121 to 130 of about 6,682 (253)

Stress wave propagation and energy characteristics of impact-damaged and water-soaked sandstone with different length-to-diameter ratios

Journal of Rock Mechanics and Geotechnical Engineering
In mining engineering, dynamic loads acting on the surrounding rock induce irreversible damage. The damage is further exacerbated by water exudation from filling bodies or groundwater in the surrounding rock.
Kang Peng, Kun Luo, Yuanmin Wang, Song Luo, Tianxing Ma, Jing Mao, Jie Zhang   +6 more
doaj   +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

Experimental study and correction of dynamic characteristic parameters of silty clay under negative temperature conditions

Soils and Foundations
In order to examine the principles governing the variation of dynamic characteristic parameters, including the damping ratio, dynamic modulus, and frozen soil backbone curve, under different negative temperature conditions, silty clays sourced from the ...
Haotian Guo, Yuli Lin, Jinming Li, Chao Sun   +3 more
doaj   +1 more source

Physical Activity Profile of School‐Aged Children Born Very Preterm and Its Association With Sleep

Acta Paediatrica, EarlyView.
ABSTRACT Aim To describe the association between different physical activity and sleep parameters in school‐aged children born very preterm. Methods A cross‐sectional analysis was done in a cohort of 6‐ to 10‐year‐old children born at < 32 weeks' gestation at the Department of Neonatology, University of Tübingen, Germany.
Maham Hassan, Saskia Koller, Annkathrin Gies, Axel R. Franz, Johanna Catharina Brückner, Vadim Förster, Christian F. Poets, Christoph Randler, Cornelia Wiechers, Mirja Quante   +9 more
wiley   +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

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

Digital Phenotyping of Physical Activity and Mortality in Cancer Survivors

MedComm – Future Medicine, Volume 5, Issue 3, September 2026.
The study analyzed wrist‐worn accelerometer data from 864 cancer survivors in the NHANES dataset (left panel). We identified three key digital phenotypes and their optimal thresholds for survival benefit: MIMS Volume (> 4945), Intensity (> 24), and Variability (> 2.4) (middle panel).
Yuanyou Li, Tianchen Niu, Zhongzheng Xiang, Junhan Zhao, Junjie Zhang, Lingjie Fan   +5 more
wiley   +1 more source

Full‐scale Shaking Table Tests on a 10‐story Steel Moment‐resisting Frame Building with Buckling‐restrained Braces

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2356-2378, August 2026.
ABSTRACT In February 2023, a comprehensive series of shaking table tests were conducted at the E‐Defense facility, the world's largest three‐dimensional earthquake simulator, on a full‐scale 10‐story steel moment‐resisting frame supplemented with BRBs.
Jun Fujiwara, Jialiang Jin, Jionghui Li, Tianhao Yan, Ryota Nishi, Akiko Kishida, Koichi Kajiwara, Takuya Nagae, Taichiro Okazaki, Tatsuya Asai   +9 more
wiley   +1 more source

Innovative Triaxial/Resonant Column Equipment [PDF]

, 2010
The present paper describes a new triaxial apparatus which allows the measurement of low strain stiffness by means of both bender elements and resonant column test. In a previous paper Squeglia et al.
Lo Presti, Diego Carlo Federico, SQUEGLIA, NUNZIANTE, Pallara O., LO PRESTI, DIEGO CARLO, Pallara, Oronzo   +4 more
core   +1 more source

Structural characteristics and dynamic mechanical properties of granite residual soil based on dynamic triaxial tests

Yantu gongcheng xuebao
The granite residual soil is a typical soil widely distributed in the coastal areas of South China and other rainy regions. Due to its unique geological formation, it exhibits both high strength and large porosity, making it widely used in underground ...
HE Bin 1 , ZHOU Xiaowen 2, 3, LI Zejian 2
doaj   +1 more source