Results 91 to 100 of about 48,387 (242)

AI‐Assisted Self‐Powered Wearable Dual‐Mode Sensor With TENG and Stretchable Optical Fiber for Neurological Disorder Diagnostics

open access: yesAdvanced Science, EarlyView.
This manuscript presents the WDMS platform, an AI‐assisted, self‐powered wearable dual‐mode sensor for tele‐neurology. It integrates a contact–separation TENG insole with stretchable polyurethane optical‐fiber strain sensors to synchronously track plantar pressure and lower‐limb muscle deformation.
Tianliang Li   +12 more
wiley   +1 more source

Semiconductor Laser with Electrically Modulated Frequency

open access: yesPhotonics
We propose a novel method for controlling the frequency of semiconductor lasers. This technique facilitates the production of devices with fast frequency tuning and intrinsic linearization of laser frequency sweeps.
Boris Laikhtman   +2 more
doaj   +1 more source

Compact high-power tunable three-level operation of double cladding Nd-doped fiber laser

open access: yes, 2005
We present a compact high-power continuous-wave tunable neodymium-doped double cladding fiber laser operating on three-level 4F3/2 - 4I9/2 transition with a maximum output power up to 810 mW.
Fu, L.B.   +5 more
core   +1 more source

Laser cladding of bioactive glass coatings

open access: yesActa Biomaterialia, 2010
Laser cladding by powder injection has been used to produce bioactive glass coatings on titanium alloy (Ti6Al4V) substrates. Bioactive glass compositions alternative to 45S5 Bioglass were demonstrated to exhibit a gradual wetting angle-temperature evolution and therefore a more homogeneous deposition of the coating over the substrate was achieved ...
R, Comesaña   +6 more
openaire   +3 more sources

Multimodal Super‐Resolution Imaging of Nitrogen‐Vacancy Centers via High‐Index‐Induced Structured Illumination Microscopy and Optically Detected Magnetic Resonance Spectrometry

open access: yesAdvanced Science, EarlyView.
This work demonstrates a multimodal super‐resolution imaging technique for nitrogen‐vacancy centers by integrating high‐index‐induced structured illumination with optically detected magnetic resonance. By utilizing diamond's high refractive index, the method achieves sub‐100‐nm spatial resolution and enhanced localization. This dual‐modulation strategy
Kyu Ri Choi   +9 more
wiley   +1 more source

Fiber laser systems shine brightly

open access: yes, 1997
Describes the advancements in active fiber laser systems. Outline of cladding pumping technique for enhanced power scaling; Improved energies and peak powers; Extended wavelength range; Frequency doubling with fiber ...
Hanna, D.C.   +2 more
core  

Towards Low Cost Coupling Structures for Short-Distance Optical Interconnections [PDF]

open access: yes, 2007
The performance of short distance optical interconnections in general relies very strongly on coupling structures, since they will determine the overall efficiency of the system to a large extent.
Alajoki, T.   +8 more
core   +3 more sources

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

open access: yesAdvanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li   +8 more
wiley   +1 more source

Optimization and simulation of laser cladding process parameters for GX4CrNi13-4 martensitic stainless steel

open access: yesCailiao gongcheng
To improve the quality of laser cladding, a finite element analysis process was established, focusing on laser power, scanning speed and powder feed rate as the main process parameters, aiming to reduce the research and development cycle and economic ...
ZHANG Huawei   +4 more
doaj   +1 more source

Modeling of laser cladding with diode laser robotized system

open access: yesSurface Engineering and Applied Electrochemistry, 2010
The choice of proper working conditions is a problem for any processing. But for laser processing this procedure is much more serious. The final results of the processing are usually influenced by over 100 factors. So the best way to choose more cheaply and fast the working conditions is to use the processing simulation.
Yao, J.   +5 more
openaire   +4 more sources

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