Results 111 to 120 of about 297,175 (241)

Efficient, Reversible Lead Adsorption in a Thiol‐Decorated Zirconium‐Metal–Organic Framework

Small, EarlyView.
A thiol‐decorated Zr‐MOF, Zr‐DMSA, efficiently captures Pb(II) from water via mixed S/O chelation enabled by flexible “dangling” ligands, as revealed by solid‐state NMR and pair distribution function analyses. Treatment with 1 M HCl fully reverses Pb binding, regenerating the material for up to 10 consecutive adsorption–desorption cycles.
Timo M. O. Felder, Nazanin Taheri, Till Schertenleib, Anne F. S. Belin, Pattaraphon Rodlamul, Laura Piveteau, Mounir Mensi, Xiao‐Xin Gao, Paul J. Dyson, Mohammad K. Nazeeruddin, Wendy L. Queen   +10 more
wiley   +1 more source

Rotor burst protection program initial test results, phase 4 Final report [PDF]

High speed photographic recording of turbine wheel failure in containment ...
Mangano, G. J., Martino, A. A.
core   +1 more source

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source

Two-stage frequency regulation for wind turbines with adaptive coefficients and optimized power trajectory

International Journal of Electrical Power & Energy Systems
Wind turbines support grid frequency by rotor decelerating and then accelerating, but the instant power imbalance caused by rotor speed recovery may lead to a secondary frequency drop.
Zhiting Zhou, Hui Li, Jie Zheng, Hongtao Tan, Xuewei Xiang, Ran Yao   +5 more
doaj   +1 more source

Influence of Acrylonitrile Content on Processing, Morphology, Thermal Behavior, and Mechanical Properties of PA/NBR Thermoplastic Vulcanizates

Journal of Applied Polymer Science, Volume 143, Issue 11, March 15, 2026.
Influence of acrylonitrile (ACN) content on the processing behavior and morphological development of PA/NBR thermoplastic vulcanizates. Torque‐time profiles, SEM, and SEM/AFM images show that an intermediate ACN level (38%) promotes improved phase dispersion and morphological uniformity, especially with increased processing time, resulting in the most ...
André Luís dos Santos da Silva, Marly A. Maldaner Jacobi, Enio Cesar Machado Fagundes, Fabricio Celso, Otávio Bianchi   +4 more
wiley   +1 more source

Pulsation energy of the Couette–Taylor flow in gaps of multicylinder counter-rotating rotors

Учёные записки Казанского университета: Серия Физико-математические науки, 2017
The results of the experiments on thermal energy separation during the rotation of two coaxial counter-rotating multislot “rotors” that form a system of cylindrical ring channels filled with viscous working fluid have been presented.
A.F. Serov, V.N. Mamonov, A.D. Nazarov
doaj  

Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles

Journal of Field Robotics, Volume 43, Issue 2, Page 1068-1090, March 2026.
ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney, John Bass, Alexis Lussier Desbiens   +2 more
wiley   +1 more source

Spatial Variability of Sea State in the German Bight and Influence of Offshore Wind Farms

Wind Energy, Volume 29, Issue 3, March 2026.
ABSTRACT Offshore wind farms are growing worldwide and increase the source of renewable energy. However, as the extent and density of offshore wind farms increase, there is growing importance to understand the interactions with physical systems and the marine environment, in particular, the sea state.
Lea Schmitt, Konrad B. Bärfuss, Xiaoli Guo Larsén, Jana Fischereit, Astrid Lampert   +4 more
wiley   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

The Hydrodynamic Performance of a Vertical-Axis Hydro Turbine with an Airfoil Designed Based on the Outline of a Sailfish

Journal of Marine Science and Engineering
This study investigates an aerodynamic optimization framework inspired by marine biological morphology, utilizing the sailfish profile as a basis for airfoil configuration. Through Latin hypercube experimental design combined with optimization algorithms,
Aiping Wu, Shiming Wang, Chenglin Ding
doaj   +1 more source