Results 81 to 90 of about 15,274 (262)
Technologies, 2019 Seamless location awareness is considered a cornerstone in the successful deployment of the Internet of Things (IoT). Support for IoT devices in indoor positioning platforms and, vice versa, availability of indoor positioning functions in IoT platforms ...
Luca De Nardis +2 more
doaj +1 more source
Advanced Science, EarlyView.A novel PR strategy was proposed to improve CBD‐derived Sb2S3 film quality. It synergistically optimized the CBO of CdS/Sb2S3 interface and the back‐contact barrier, while the VS2 donor defect was converted into SSb2 acceptor defect with lower concentration.
Yeyang Lin +8 more
wiley +1 more source
Adaptive and Highly Efficient Thermoregulation Based on Multi‐Dimensional Janus Film
Advanced Science, EarlyView.A switchable TiO2/MXene/PDMS Janus membrane enables dual‐mode radiative cooling and solar heating, achieving sub‐ambient cooling of 17.89°C and above‐ambient heating of 13.82°C. Adaptive temperature regulation was demonstrated with a low power integrated autonomous smart curtain system, providing a sustainable and energy‐efficient alternative for ...
Yuqing Shi +6 more
wiley +1 more source
Advanced Science, EarlyView.A concise supramolecular assembly strategy using α‐cyclodextrin and phenylpyridine derivatives affords dual‐functional materials with switchable multicolor photochromism and tunable ultralong organic phosphorescence, offering new platforms for various photonic applications. ABSTRACT Supramolecular photochromic materials capable of reversible alteration
Xue Bai +8 more
wiley +1 more source
5G Indoor Positioning Error Correction Based on 5G-PECNN
SensorsWith the development of the mobile network communication industry, 5G has been widely used in the consumer market, and the application of 5G technology for indoor positioning has emerged.
Shan Yang +6 more
doaj +1 more source
Received Signal Strength Database Interpolation by Kriging for a Wi-Fi Indoor Positioning System
Sensors, 2015 The main approach for a Wi-Fi indoor positioning system is based on the received signal strength (RSS) measurements, and the fingerprinting method is utilized to determine the user position by matching the RSS values with the pre-surveyed RSS database ...
Shau-Shiun Jan, Shuo-Ju Yeh, Ya-Wen Liu
doaj +1 more source
Advanced Science, EarlyView.The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang +6 more
wiley +1 more source
Advanced Science, EarlyView.Plant‐based nanomaterials derived from alfalfa serve as dual‐function catalysts, coupling photodegradation and phytoremediation to degrade polyethylene under UV‐A light and in soil. The nanomaterials work synergistically with alfalfa and soil microbes, achieving efficient plastic breakdown without trophic transfer.
Haoran Liu +4 more
wiley +1 more source
An Up-View Visual-Based Indoor Positioning Method via Deep Learning
Remote SensingIndoor positioning plays a crucial role in various domains. It is employed in various applications, such as navigation, asset tracking, and location-based services (LBS), in Global Navigation Satellite System (GNSS) denied or degraded areas.
Chen Chen +9 more
doaj +1 more source
Advanced Science, EarlyView.With high specific surface area, and adjustable interface, aerogel provides a multi‐functional platform for gas sensing. This review systematically links structural parameters (specific surface area, pore size, heterojunctions) to sensing metrics (sensitivity, selectivity, stability), critically evaluates optimization strategies, and outlines future ...
Hao Guo +6 more
wiley +1 more source