Results 31 to 40 of about 125,319 (310)

Deformation Field Evolution and Failure Mechanisms of Coal–Rock Combination Based on the Digital Speckle Correlation Method

Energies, 2019
The stability of a deep composite roof is a powerful guarantee for the safe and efficient production of a coal mine. The coal–rock combination, the single rock or coal bodies have different bearing capacity; thus, we can accurately obtain the deformation
Zhengzheng Xie, Nong Zhang, Fanfei Meng, Changliang Han, Yanpei An, Ruojun Zhu   +5 more
doaj   +1 more source

Hydrogel Thermostat Inspired by Photoprotective Foliage Using Latent and Radiative Heat Control

Advanced Materials, EarlyView.
Guided by Populus alba foliage, this hydrogel latent‐radiative thermostat (LRT) actively balances latent and radiative heat fluxes. An LRT switches solar reflectance, maintains high mid‐IR emissivity, and reversibly evaporates/regenerates water, while titanium oxide (TiO2) nanoparticles toughen the film.
Se‐Yeon Heo, Hyung Rae Kim, Yoonsoo Shin, Hyun Su Lee, Hyunkyu Kwak, Do Hyeon Kim, Dong Hyun Seo, Joo Hwan Ko, Hyo Eun Jeong, Sehui Chang, Min Seok Kim, Longnan Li, Jyotirmoy Mandal, Wei Li, Dae‐Hyeong Kim, Young Min Song   +15 more
wiley   +1 more source

Norwegian Pitched Roof Defects

Buildings, 2016
The building constructions investigated in this work are pitched wooden roofs with exterior vertical drainpipes and wooden load-bearing system. The aim of this research is to further investigate the building defects of pitched wooden roofs and obtain an ...
Lars Gullbrekken, Tore Kvande, Bjørn Petter Jelle, Berit Time   +3 more
doaj   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Mechanical properties of sandstone under hydro-mechanical coupling

Applied Rheology, 2022
Study of mechanical properties of rock under hydro-mechanical coupling. The MTS815 rock mechanics system is used to perform triaxial compression tests of water-saturated sandstones under different confining pressures and pore water pressures. The results
Tan Tao, Zhao Yanlin, Zhao Xun, Chang Le, Ren Sheng   +4 more
doaj   +1 more source

Multifunctional Gelatin‐Based Smart Films Integrating Thermochromic Encryption, Temperature‐Regulated Photothermal Management, Reprocessability, and Biodegradability for Sustainable Applications

Advanced Science, EarlyView.
Multifunctional gelatin films synergizing thermochromic encryption, self‐regulating photothermal management, and closed‐loop recyclability offer sustainable solutions for intelligent packaging. ABSTRACT Multifunctional gelatin‐based smart films are engineered by incorporating hyperbranched polyglycerol (HBPG) as a plasticizer, dialdehyde β‐cyclodextrin
Yuehong Zhang, Chen Yang, Langlang Dai, Leipeng Liu, Vijay Kumar Thakur   +4 more
wiley   +1 more source

Recent Advances and Developments in Phase Change Materials in High-Temperature Building Envelopes: A Review of Solutions and Challenges

Buildings
The use of phase change materials (PCMs) has become an increasingly common way to reduce a building’s energy usage when added to the building envelope.
Farhan Lafta Rashid, Anmar Dulaimi, Wadhah Amer Hatem, Mudhar A. Al-Obaidi, Arman Ameen, Muhammad Asmail Eleiwi, Sarah Abbas Jawad, Luís Filipe Almeida Bernardo, Jong Wan Hu   +8 more
doaj   +1 more source

Automatic Segmentation of Raw LIDAR Data for Extraction of Building Roofs

Remote Sensing, 2014
Automatic extraction of building roofs from remote sensing data is important for many applications, including 3D city modeling. This paper proposes a new method for automatic segmentation of raw LIDAR (light detection and ranging) data.
Mohammad Awrangjeb, Clive S. Fraser
doaj   +1 more source

Deformation Driven Suction Cups: A Mechanics‐Based Approach to Wearable Electronics

Advanced Science, EarlyView.
Deformation‐driven suction cups enable robust, reversible adhesion of wearable electronics to human skin spanning wide mechanical compliance, without adhesives or tight straps. By integrating mechanics modeling, experiments, and contact mechanics theory, this work reveals how cup geometry, substrate compliance, and interfacial adhesion govern suction ...
Seola Lee, Andrew Akerson, Roham Pardakhtim, Ehsan Hajiesmaili, Kevin Rhodes, Zidong Li, Andrew Stanley, Amirhossein Amini, Daniele Piazza, Chiara Daraio, Tianshu Liu   +10 more
wiley   +1 more source