Results 111 to 120 of about 353,289 (314)
Resource allocation for delay constrained wireless communications
, 2010 The ultimate goal of future generation wireless communications is to provide ubiquitous seamless connections between mobile terminals such as mobile phones and computers so that users can enjoy high-quality services at anytime anywhere without wires ...
Chen, J.
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Aerosol Jet Printed Polymer‐Free High Aspect Ratio Quantum Dot Films for Enhanced Color Conversion
Advanced Optical Materials, EarlyView.Polymer‐free quantum dot color conversion layers are aerosol jet printed at high aspect ratio by tuning the aerosol focus ratio to induce in‐flight droplet drying. Contact‐line pinning suppresses lateral spreading, enabling ∼10 µm‐thick films at ∼50 µm widths with blue light leakage below 0.25% and conversion efficiency approaching 18%, demonstrated ...
Sukyung Choi +5 more
wiley +1 more source
Anomaly Detection in Nanofibrous Materials by CNN-Based Self-Similarity
Sensors, 2018 Automatic detection and localization of anomalies in nanofibrous materials help to reduce the cost of the production process and the time of the post-production visual inspection process.
Paolo Napoletano +2 more
doaj +1 more source
Subscriber stations in service integrated optical broad band communications systems
, 2022 S.2163-2171Subscriber stations in service integrated communications systems can be implemented in many different ways. Within the HHI Broad-Band Communications System two extremely different solutions have been realized: on the one hand, subscriber ...
Buenning, H. +2 more
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Advanced Optical Materials, EarlyView.Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali +3 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante +11 more
wiley +1 more source
, 2005 In this contribution we propose and investigate a multiple-input multiple-output (MIMO) wireless communications system, where multiple receive antennas are distributed in the area covered by a cellular cell and connected with the base-station (BS).
Yang, Lie-Liang, Fang, Wei, Chen, X.-C.
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Advanced Optical Materials, EarlyView.A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez +4 more
wiley +1 more source
IEEE AccessMobile Wireless Sensor Networks (MWSNs) are employed in diverse applications, including remote patient monitoring systems (RPMS). In RPMS, biomedical sensors collect physiological data from patients outside clinical settings, and the data is transmitted ...
Kegomoditswe Boikanyo +3 more
doaj +1 more source
Optical-SDMA for Broadband Aeronautical Communications"
, 2003 Broadband communication for aircraft passengers is facing one of the most promising markets of near future. While currently systems introduced in L and Ku band are already limited in bandwidth considering service provisioning to several airline fleets ...
Giggenbach, Dirk +3 more
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