Results 251 to 260 of about 100,938 (307)

PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh, Almuatazbellah Boker, Mohammad Al Janaideh   +2 more
wiley   +1 more source

Sustainable Utilization and Fire Protection of Wood‐Based Composites in Buildings: Innovations, Challenges, and Future Directions

Sustainable Development, EarlyView.
ABSTRACT The increasing use of wood and wood‐based composites in construction reflects a global shift toward renewable materials that support sustainable development objectives, including carbon reduction and responsible resource use. While wood offers substantial environmental benefits compared to conventional materials such as concrete and steel, its
Qaisar Munir, Marko Hyvärinen, Timo Kärki   +2 more
wiley   +1 more source

Triboelectric Capacitance Supplementation in Energy Storage Composites with Functionalized Carbon Fiber Electrodes

Small, EarlyView.
Triboelectric contact electrification evaluation between structural supercapacitor layers using surface‐functionalized carbon fiber electrodes. Electrospun nanofiber separators can aid in capacitance augmentation by leveraging the contact electrification effect of dissimilar materials.
Žan Simon, Bhagya Dharmasiri, Ronald T. Leon, Ben Newman, Fatemeh Mokhtari, Piers Coia, Elmer S. Austria Jr., Behnam Akhavan, Peter C. Sherrell, Amanda V. Ellis, Russell J. Varley, Luke C. Henderson   +11 more
wiley   +1 more source

Flexoelectric Polarization‐Enhanced Gd‐Based Nanoflowers for Efficient Phosphatase‐Mimicking Dephosphorylation

Small Structures, EarlyView.
Flexoelectric polarization is harnessed to dynamically enhance phosphatase‐mimicking catalysis in Gd‐based nanoflowers, enabling ultrasound‐responsive and efficient biophosphate ester hydrolysis through strain‐induced electronic modulation. Phosphatase‐mimicking nanozymes provide highly stable enzyme‐like activity but remain limited by their static ...
Linjing Su, Jingyan Xu, Rong Huang, Jinlan Liao, Lixue Zhao, Ling Li, Zhi Zhang, Yuhao Xiong   +7 more
wiley   +1 more source

Numerical analysis of the stability behaviour of castellated beams and comparison to regular hot‐rolled profiles

Steel Construction, EarlyView.
Abstract Castellated steel beams, characterised by their unique perforated web design, have gained significant popularity in the construction of medium‐span structures, like industrial and office buildings. These beams offer an economical solution due to their increased bending moment capacity about the major axis with relatively low weight and ...
Julian Betken, Anna‐Lena Bours, Rebekka Winkler, Markus Knobloch   +3 more
wiley   +1 more source

A Non‐van der Waals Superlattice Breakthrough: Engineered Atomic Layer Assemblies

Rare Metals, EarlyView.
Qingmei Hu, Xiang Miao, Jiadong Zhou
wiley   +1 more source

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Macromodeling of SFRC Flexural Behavior and Impact of Fiber Characteristics on Flexural Behavior

Journal of Materials in Civil Engineering, 2022
AbstractWith advances in materials science, the performance of concrete materials has continued to improve, especially its compression strength.
Li Liu, William M. McGinley
openaire   +1 more source

Flexural behavior of frozen soil

Canadian Geotechnical Journal, 1986
Plain and reinforced frozen sand beams were loaded incrementally in pure bending at −6 and −10 °C. For plain beams, the deflection rate (during secondary creep) showed a linear relationship with applied load on a log–log scale while experimental results of beams reinforced with a single 4.76 mm diameter steel bar showed a bilinear relationship.
Sweanum Soo, Robert K. Wen, Orlando B. Andersland   +2 more
openaire   +1 more source

Flexural behavior of polymer concrete

Construction and Building Materials, 1999
Abstract The flexural behavior of polymer concrete (PC) made with different types of resins was evaluated in this study. A total of 54 beams was tested under four-point loading (36 singly reinforced and 18 unreinforced) to examine different parameters that influence the behavior of polymer concrete in flexure.
Hisham Abdel-Fattah, Moetaz M El-Hawary
openaire   +1 more source