Results 1 to 10 of about 587,206 (265)
Choice Requires Cognitive Availability: Protective Structure as an Enabling Condition for Autonomy Support in Digitally Distracted Physical Education Classrooms. [PDF]
Does autonomy support retain its motivational benefits when digital distraction pervades the classroom? Drawing on self‐determination theory and cognitive‐resource perspectives, we proposed the Cognitive Availability Hypothesis: when attentional ...
Xu H, Zhang B, Wei W.
europepmc +2 more sources
Retrofitting Agricultural Self-Propelled Machines with Roll-Over and Tip-Over Protective Structures
In the agricultural sector, the loss of stability related to the use of self-propelled agricultural machinery (SPAM) has caused and continues to cause accidents, often with fatal outcomes.
Leonardo Vita +2 more
doaj +3 more sources
Evaluation of the protection and presentation of historic buildings in the Viminacium Archaeological Park in relation to their spatial context [PDF]
Viminacium was the capital of the Roman province of Moesia Superior and an important legionary fortress. Today it is an archaeological park with protected and presented historic buildings and contemporary facilities, situated by the thermo power
Nikolić Emilija
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Increasing popularity of lettuce in the tropics is becoming evident due to its widespread use in health and nutrition. Lettuce, a ready-to-eat vegetable is expected to be safe and of good quality.
Blanche Franchette D. Llera +2 more
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Numerical Research on Influencing Factors of Hydrodynamics Ram Effect and Protective Structure
As the most vulnerable part of the aircraft,the fuel tank is damaged by hydrodynamics ram effect when attacked by high-speed projectiles,which will directly threaten the safety of the aircraft.The numerical research on the hydrodynamics ram effect is of ...
YANG Qiuzu +4 more
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Field Test and Numerical Simulation of a New Layered Structure
To study the attenuation and dispersion effect of a new protective structure distribution layer constructed with a hollow particle composite material on the shock wave, a similar model field explosion test was carried out in this paper.
Ying-Qi Hao, Zhong-Bao Ye, Xin-Gui Zhou
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Development of microwave absorption materials (MAMs) with thin thickness, high oxidation resistance and tunable effective absorbing bandwidth (EAB) is particularly urgent for practical applications but remains a great challenge. In this work, a series of
Peng Wu, Wenting He, Hongbo Guo
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In this study, the influence of nanocrystalline structure on the plasma nitriding (PN) behavior of 17-4PH steel and corresponding corrosion mechanisms under different treatments were systematically investigated.
Dan Liu +8 more
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The concept of a prefabricated structure for protection of critical infrastructure facilities [PDF]
The paper presents the concept of a protective structure in the form of a prefabricated reinforced concrete protective dome intended for protection of a single critical infrastructure facility [1].
Kamil Sobczyk +2 more
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Extraordinary fretting fatigue endurance is critical for engineering structures prone to contact with expected long service lifetimes. Here, we propose a strategy to achieve ultrahigh fretting fatigue endurance in titanium alloy.
Dan Liu +7 more
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