Results 31 to 40 of about 7,043,501 (306)

Energy efficiency of underground structures in harsh climatic conditions

open access: yesMagazine of Civil Engineering, 2023
The object of the study is an underground structure located in a region with a harsh climate. The place-ment of structures in the underground space solves the urgent problem of reducing the heating cost for buildings and structures in the northern ...
Stetjukha Vladimir
doaj   +1 more source

Moisture‐Adaptive Triboelectric Materials and Platforms: Design Strategies, Performance Enhancement, and Applications in Energy Harvesting and Wearable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes moisture‐adaptive strategies that enable triboelectric nanogenerators (TENGs) to operate across diverse moisture conditions. It examines moisture‐management methods, including exclusion, directional transport, removal, and utilization, with charge‐regulation approaches based on interfacial, dielectric, and structural engineering.
Junzhe Gan   +4 more
wiley   +1 more source

Rebel Underground (1965) [PDF]

open access: yes, 1965
The Rebel Underground stressed racial segregation and states\u27 rights. The anonymously, irregularly published paper typically attacked James Meredith, Russell Barrett, James Silver, the federal government, Civil Rights groups, Communism and the Daily ...
University of Mississippi. Rebel Underground
core   +1 more source

Research on the Mechanism of Fault Activation and Water Inrush Across Variable Coal Pillar Widths

open access: yesAdvances in Civil Engineering
During coal mining operations, the activation of geological faults induced by mining activities, leading to sudden water inrush, presents a significant technical challenge to safe extraction.
Hongjin Sun   +3 more
doaj   +1 more source

Physical Test and Numerical Analysis of Damage Mechanism of Rocky Foundation with Parallel Structural Surfaces

open access: yesBuildings
The growth of rock structural surfaces makes the deformation and stability analysis of rock pits more complex and challenging than that of soil pits. To investigate the damage mechanism of this foundation and provide ideas for foundation support, the ...
Ziguang Zhang   +3 more
doaj   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

open access: yesAdvanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Rebel Underground (January 1963) [PDF]

open access: yes, 1963
The Rebel Underground stressed racial segregation and states\u27 rights. The anonymously, irregularly published paper typically attacked James Meredith, Russell Barrett, James Silver, the federal government, Civil Rights groups, Communism and the Daily ...
University of Mississippi. Rebel Underground
core   +1 more source

A Perspective on Interactive Theorem Provers in Physics

open access: yesAdvanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

Underground Signals: The Ecological Power of Root Volatiles

open access: yesAdvanced Science, EarlyView.
Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao   +31 more
wiley   +1 more source

Study on the Support Pressure of Tunnel Face for the Construction of Pipe-Jacking Across Thin Overburden River Channel Based on Mud-Water Balance

open access: yesApplied Sciences
Pipe-jacking construction technology is favored in urban construction due to its advantages of high safety and being a non-excavation technique. However, instability of the tunnel face often occurs due to unfavorable conditions, such as pipe jacking ...
Ziguang Zhang   +4 more
doaj   +1 more source

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