Results 141 to 150 of about 4,669,129 (343)

Physical Fitness in the Elderly.

Journal of exercise physiology, 1992
老年者の体力に関して、1)老年者の体力の指標、2)加齢と体力、3)老年者の体力の改善に対する運動の効果、について文献的考察を行った。老年者の体力の指標としては、最大酸素摂取量が最もよく用いられている。加齢に伴って最大酸素摂取量には低下が認められるが、70歳代までの健常者では、endurance exercise trainingが最大酸素摂取量の改善に対して効果を有することが確認されている。
openaire   +3 more sources

Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials

Advanced Engineering Materials, EarlyView.
This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani, Surabhi Nadigotti, Erfan Fatehi, Derek Aranguren van Egmond, Behnam Ashrafi   +4 more
wiley   +1 more source

Associations between mobile phone involvement, BMI levels, and sleep quality among Chinese university students: evidence from a multi-regional large-scale survey

Frontiers in Public Health
ObjectiveThis study aims to explore the association between mobile phone involvement, body mass index (BMI) levels, and the sleep quality of Chinese university students.MethodsUsing a cluster sampling method, we selected 17,085 university students from ...
Yukun Lu, Yukun Lu, Yukun Lu, Haodong Tian, Haodong Tian, Wentao Shi, Wentao Shi, Haowei Liu, Haowei Liu, Jinlong Wu, Jinlong Wu, Yunfei Tao, Yunfei Tao, Li Peng, Li Peng   +14 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Effectiveness of an intermittent fasting diet versus regular diet on fat loss in overweight and obese middle-aged and elderly people without metabolic disease: a systematic review and meta-analysis of randomized controlled trials

The Journal of Nutrition, Health and Aging
Objective: As the number of adults aged over 40 with obesity increases dramatically, intermittent fasting interventions (IF) may help them to lose fat and weight. This systematic review investigated the most recent research on the effects of intermittent
Ke Yao, Hao Su, Kaiyin Cui, Ye Gao, Dengyun Xu, Qian Wang, Zhitong Ha, Teng Zhang, Shuning Chen, Tao Liu   +9 more
doaj   +1 more source

The Assessment of Physical Fitness by Correlation of Vital Capacity and Certain Measurements of the Body.

, 1921

openalex   +2 more sources

Effect of Water Aging on the Mechanical Properties of Hybrid Carbon/Aramid Reinforced Thermoplastic Composites

Advanced Engineering Materials, EarlyView.
This study investigates the mechanical properties of Carbon/Aramid intraply hybrid fiber‐reinforced Elium composites under 6 months of water aging. After aging, flexural strength decreases by 25.89%, tensile strength by 4.40%, and fracture toughness by 21.56%.
Muhammed Huseyin Guzel, Gurol Onal
wiley   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

The assessment of physical fitness by correlation of vital capacity and certain measurements of the body, with tables, by Georges Dreyer ... in collaboration with George Fulford Hanson ...

, 1920
Georges Dreyer, G Hanson
openalex   +2 more sources

Mechanical Behavior and Microstructural Changes Associated with Tensile Deformation above the Martensite Start Temperature during Quenching and Subsequent Partitioning of a Low‐Alloy 37SiB6 Steel

Advanced Engineering Materials, EarlyView.
A new experimental setup, incorporating digital image correlation and infrared thermography in combination with inductive‐conductive heating for precise temperature control, is used to analyze the mechanical behavior and microstructural changes of sheet metal under complex thermomechanical test conditions that represent quench and partitioning ...
Christian Illgen, Benjamin Bohne, Sven Winter, Marcus Böhme, Martin F.-X. Wagner   +4 more
wiley   +1 more source