Results 101 to 110 of about 87,347,625 (209)

Quantification of energy consumption of bridge crane in service under mechanical-electrical coupling field. [PDF]

Sci Rep
Qi Q, Zhang L, Zhang Y, Li C, Wang S, He H.   +5 more
europepmc   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

Strategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani, Mariano Mastrogiorgio, Giuseppe Carignani   +2 more
wiley   +1 more source

A Lightweight Zero-Trust-Based Authentication Framework for UAV Systems. [PDF]

Sensors (Basel)
Qu X, Ou W, Pang M, Chen Y, Wu Y, Yue Q, Han W.   +6 more
europepmc   +1 more source

Rounded Monodisperse Fluorescent Nanodiamonds

Small, EarlyView.
Nanodiamond (ND) shape control using rapid molten‐nitrate etching is studied as a scale‐up method for monodispersed rounded particles. Optimal etching condition (567°C for 6 min) yields NDs with atomically stepped surfaces and reduced sp2 content. Compared to angular control, rounded NDs exhibit an increased proportion of luminescent particles (66% vs.
Helena Raabova, Ivan Rehor, Jan Havlik, Stuart Turner, Jan Stursa, Vladimira Petrakova, Michal Gulka, Petr Cigler   +7 more
wiley   +1 more source

Empirical Physics‐Based Normal Behavior Modeling of Drive Train Temperatures With High‐Resolution Wind Turbine Operating Data

Wind Energy, EarlyView.
ABSTRACT The installed wind energy capacity increases every year. However, operation and maintenance costs still make up a considerable portion of the levelized costs of electricity. This costs can be greatly reduced by the application of suitable early fault detection methods. The supervisory control and data acquisition system of wind turbines is one
Timo Lichtenstein, Victor von Maltzahn, Karoline Pelka   +2 more
wiley   +1 more source

Levitated macroscopic rotors with 10 hours of free spin at room temperature. [PDF]

Nat Commun
Chen X, Raj N, Lecamwasam R, Chen M, Tan CYL, Assad SM, Lam PK.   +6 more
europepmc   +1 more source

Developing a low‐cost drone‐based method for deploying and retrieving autonomous recording units in inaccessible areas

Wildlife Society Bulletin, EarlyView.
Autonomous recording units (ARUs) are increasingly used for passive acoustic monitoring, but deploying them in remote or inaccessible locations remains challenging. We developed and field‐tested a lightweight, low‐cost floating platform for drone‐assisted deployment and retrieval of ARUs in wetland interiors.
Akshit R. Suthar, Jared A. Elmore, Erin K. Buchholtz, Travis H. Folk, Beau A. Bauer, Aaron R. Pierce, James T. Anderson   +6 more
wiley   +1 more source

Hybrid PSO-GWO optimization for converter-free grid integration of parallel induction generators with experimental validation in micro-hydro power plants. [PDF]

Sci Rep
Rajak MK, Meitei IC, Pudur R.
europepmc   +1 more source

Waypoint Navigation of a 2D Drone in Stochastic Environment via Regularised Proximal Policy Optimisation

Artificial Intelligence for Engineering, EarlyView.
We present a three‐stage training framework combining Behaviour Cloning warm‐starting with auxiliary‐regularised Deep Reinforcement Learning PPO fine‐tuning for 2D drone waypoint navigation under stochastic wind. Persistent imitation regularisation prevents catastrophic forgetting, achieving robust generalisation to unseen targets and out‐of ...
Ahmet Bilgehan Serçe, Necati Aksoy
wiley   +1 more source

Wake modeling for offshore floating wind farms incorporating time-lag effects in yaw and pitch states. [PDF]

Sci Rep
Zhao L, Qiao F, Li Q, Mu X, Pan Y, Gong Y.   +5 more
europepmc   +1 more source