Results 171 to 180 of about 184,133 (305)

Cone-beam computed tomography study of root length of maxillary and mandibular anterior teeth and central incisor crown-root morphology in high-angle Class Ⅱ open bite patients

open access: yes口腔疾病防治
Objective This study aimed to explore the root length of maxillary and mandibular anterior teeth and central incisor crown-root morphology in patients with high-angle skeletal Class Ⅱ open bite, aiming to provide a reference for clinical treatment ...
REN Qingyuan   +3 more
doaj   +1 more source

Defect Detection Network In PCB Circuit Devices Based on GAN Enhanced YOLOv11 [PDF]

open access: yesarXiv
This study proposes an advanced method for surface defect detection in printed circuit boards (PCBs) using an improved YOLOv11 model enhanced with a generative adversarial network (GAN). The approach focuses on identifying six common defect types: missing hole, rat bite, open circuit, short circuit, burr, and virtual welding.
arxiv  

Polarization Management on Anisotropic Thin‐Film Lithium Niobate Platform

open access: yesAdvanced Photonics Research, EarlyView.
This review focuses on x‐cut thin‐film lithium niobate (TFLN), exploring strategies to mitigate anisotropy and mode hybridization. It covers polarization beam splitters, rotators, splitter‐rotators, polarizers, and polarization‐insensitive components. Key applications include polarization‐division multiplexing, polarization‐insensitive modulation, and ...
Kaixuan Chen   +9 more
wiley   +1 more source

Condylar degeneration in patients with dental open bite versus skeletal open bite utilizing CBCT [PDF]

open access: yes, 2018
Idiopathic condylar resorption (ICR) is a condition in which either one or both condyles undergo degeneration. Bilateral TMJ involvement presents as a clockwise rotation of the mandible in the posterior-inferior direction, resulting in an anterior open ...
Albertson, Brad   +5 more
core   +1 more source

Optimizing Single‐Cell Measurement Using Dynamic Atomic Force Microscopy

open access: yesAdvanced Photonics Research, EarlyView.
This study optimizes optical detection sensitivity in atomic force microscopy for high‐frequency single‐cell imaging in liquid environments. By analyzing laser positioning on microcantilevers, it enhances measurement accuracy and image resolution. Advanced image analysis techniques assess quality, offering guidelines for high‐resolution imaging of ...
Indrianita Lionadi   +4 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

Orthodontic treatment of children with anterior open bite and posterior crossbite: An analysis of the stomatognathic system. [PDF]

open access: yesJ Oral Biol Craniofac Res, 2023
Gonçalves LMN   +7 more
europepmc   +1 more source

Optical Chaos Generation and Applications

open access: yesAdvanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen   +8 more
wiley   +1 more source

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