Results 81 to 90 of about 17,655,534 (281)

Three-Dimensional Modeling and Indoor Positioning for Urban Emergency Response

ISPRS International Journal of Geo-Information, 2017
Three-dimensional modeling of building environments and indoor positioning is essential for emergency response in cities. Traditional ground-based measurement methods, such as geodetic astronomy, total stations, and global positioning system (GPS ...
Xin Zhang, Yongxin Chen, Linjun Yu, Weisheng Wang, Qianyu Wu   +4 more
doaj   +1 more source

ANALIZA SUSTAVA ZA UNUTARNJE LOCIRANJE

Zbornik Veleučilišta u Rijeci, 2017
Recently, due to advances in the development of various technologies which can be used for locating, it is possible to develop systems which include software solutions for the user locationing and guidance in the interior, closed or covered areas where the existing location technologies and systems for locating and guidance applicable at open, outdoor ...
Kaluža, Marin, Beg, Kristina, Vukelić, Bernard   +2 more
openaire   +2 more sources

Spatial models for context-aware indoor navigation systems: A survey [PDF]

, 2012
This paper surveys indoor spatial models developed for research fields ranging from mobile robot mapping, to indoor location-based services (LBS), and most recently to context-aware navigation services applied to indoor environments.
Christophe Claramunt, Imad Afyouni, Christophe, Claramunt, RAY, Cyril, Cyril Ray, AFYOUNI, Imad, CLARAMUNT, Christophe   +6 more
core   +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, Yuting Fu, Xiong Yu, Yuao Guo, Yanjun Liu, Dan Luo, Yuanjing Lin   +6 more
wiley   +1 more source

Subway Station Real-time Indoor Positioning System for Cell Phones [PDF]

, 2017
As wireless local area network, WLAN, access point (AP) are becoming very common wireless communication infrastructures in indoor environments, Wi-Fi signal based Indoor Positioning Systems (IPS) have been widely developed in recent years and one of the ...
Chenyang Wan, Soong Moon Kang, Ma, C, Wan, C, Chengqi Ma, Kang, S, Yuen Wun Chau, David R. Selviah, Chau, Y, Selviah, D   +9 more
core   +2 more sources

Tunable Reversible Photochromic Ultralong Organic Phosphorescence via a Universal Phenylpyridine Noncovalent Assembly Strategy

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, Renliang Wang, Hong‐Jin Xue, Zhuofan Jiang, Shuo Yang, Chiming Li, Yanqing Ge, Caihong Liu, Xian‐Yin Dai   +8 more
wiley   +1 more source

iNav Indoor Positioning and Navigation System [PDF]

, 2018
Getting a pin-point accurate location is a difficult task and prone to many errors, thus providing a wrong location. Existing GPS Based Location service has proved to be moderately reliable, but it is not the same when considering indoor wise location ...
B.Gowtham, W.O.N.Fernando, M.H. Dulaj Dilrukshan Appuhamy, S.L.Wickramarachchi, Jeewan Chinthika   +4 more
core  

Space‐Time Metasurface Antenna Enabled High‐Dimensional Electromagnetic Modulation for Intrinsic Physical Layer Security

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, Yiqing Sun, Chenfeng Yang, Siran Wang, Zheng Xing Wang, Kaixu Wang, Geng‐Bo Wu   +6 more
wiley   +1 more source

Nextome: Indoor Positioning and Navigation System

, 2014
Nextome is an indoor positioning and navigation system for smartphones and tablets that relies on the synergistic fusion of different indoor localization techniques: it uses Bluetooth Low Energy (BTLE) 4.0 technology for the installed sensors acting ...
Domenico and Ambrosini, Pasquale, Dentamaro, Vincenzo and Colucci   +3 more
core  

Indoor Navigation Research with the Khepera III Mobile Robot: An Experimental Baseline with a Case-study on Ultra-wideband Positioning [PDF]

, 2010
Recent substantial progress in the domain of indoor positioning systems and a growing number of indoor location-based applications are creating the need for systematic, efficient, and precise experimental methods able to assess the localization and ...
Farserotu, John, John R. Farserotu, Alexander Bahr, Prorok, Amanda, Adrian Arfire, Martinoli, Alcherio, Amanda Prorok, Bahr, Alexander, Arfire, Adrian, Alcherio Martinoli   +9 more
core   +2 more sources