Results 151 to 160 of about 22,046,683 (361)

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

open access: yesAdvanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu   +5 more
wiley   +1 more source

MODELING AND SIMULATION OF SINGLE LOOP PLANETARY TRANSMISSION SYSTEM BASED ON BOND GRAPH THEORY

open access: yesJixie qiangdu, 2017
Based on bond graph theory,considering the time-varying meshing stiffness,damping and tooth surface friction force of internal and external gear,using LuGre friction model,the bond graph model of NGW type planetary gear was established. And then,the bond
ZHANG BaoFeng   +4 more
doaj  

Working Group for Planetary System Nomenclature (Committee Of The Executive) [PDF]

open access: bronze, 1985
H. Masursky   +13 more
openalex   +1 more source

Single and Bi‐Layer Glass‐Based Phantoms: Robust Materials for a Calibration Standard for Fluorescence Imaging Systems

open access: yesAdvanced Photonics Research, EarlyView.
Fluorescence‐guided surgery is a common technique and characterizing imaging performance is important to ensure clinical reliability. A calibration standard comprising multiple glass phantoms fabricated to mimic the optical properties of fluorescent and non‐fluorescent tissue is presented.
Mingze Yang   +6 more
wiley   +1 more source

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

open access: yesAdvanced Photonics Research, EarlyView.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang   +7 more
wiley   +1 more source

Synthesis and Optical Properties of Single‐Crystalline Phosphors Gd3In2Ga3O12:RE3+ (RE = Nd3+ and Ho3+) Grown via the Optical Float Zone Method

open access: yesAdvanced Photonics Research, EarlyView.
Nd3+‐ and Ho3+‐doped Gd3In2Ga3O12 single crystals have been successfully synthesized via the optical float zone method. Their structure and optical characterization demonstrate efficient narrow‐line 4f–4f emission, low cross‐relaxation, and bright photoluminescence, indicating their potential as advanced optical materials for photonic applications. The
Hasan Yilmaz   +5 more
wiley   +1 more source

Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%

open access: yesAdvanced Robotics Research, EarlyView.
Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
wiley   +1 more source

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