Search results for "position"
showing 10 items of 6771 documents
Analysis of Received Signal Strength Quantization in Fingerprinting Localization
2020
In recent times, Received Signal Strength (RSS)-based Wi-Fi fingerprinting localization has become one of the most promising techniques for indoor localization. The primary aim of RSS is to check the quality of the signal to determine the coverage and the quality of service. Therefore, fine-resolution RSS is needed, which is generally expressed by 1-dBm granularity. However, we found that, for fingerprinting localization, fine-granular RSS is unnecessary. A coarse-granular RSS can yield the same positioning accuracy. In this paper, we propose quantization for only the effective portion of the signal strength for fingerprinting localization. We found that, if a quantized RSS fingerprint can …
Optimized Deposition of Graphene Oxide Langmuir-Blodgett Thin Films
2014
Abstract Single sheet graphene (SG) is an innovative transparent material with high electrical and thermal conduction the use of which in transparent electrodes instead of traditional materials improves the performance of optoelectronic devices. In this study, graphene oxide (GO) has been obtained by a modified Hummer`s method followed by an advanced technique of water removal (lyophilisation). The Langmuir-Blodgett (LB) method was applied to transfer GO from suspension to substrate. To optimize the deposition process, as suspending and spreading solvents the benzene and benzene/methanol mixtures were chosen instead of previously studied water suspensions. The number of GO layers in suspens…
‘I’m a foreign teacher’: legitimate positionings in the stories of a migrant teacher
2022
This qualitative study examines one migrant teacher’s identity positions in the context of a peer mentoring group setting in Finland. Combining theories of legitimacy and teacher narratives, this study asked which positions were available and legitimate for a migrant teacher. The analysis of three of the stories the teacher (‘Ji Yoo’) shared was inspired by Barkhuizen’s three-step framework for examining positioning in teacher narratives. Findings showed that Ji Yoo’s most legitimate positions were being ‘foreign’, novice teacher, cultural broker, and expert teacher, the latter two being the least frequent and least explicit ones. The authors suggest that migrant teachers’ struggles of havi…
Inspection of laser powder deposited layers
2013
Laser Ultrasonic Technique for Laser Powder Deposition Inspection
2013
A lattice of participation: reflecting on examples of children's and young people's collective engagement in influencing social welfare policies and …
2014
The article introduces four case studies from Wales, France and Finland and explores the situated, intergenerational and dynamic nature of collective participation in child welfare settings. Collective participation is conceived of as a process of engagement in which children and young people have some influence over the initiation or direction of a project; and as seeking a product, or outcome. The case studies represent a range of forms of collective engagement and highlight some key resources which supported children's participation (communicative spaces, time, money, knowledge, social position, attitudes, social networks, institutional commitment, equipment, food and transport). Challen…
Global and local stressors on community succession in the Mediterranean intertidal zone
Architetture all'ombra del vulcano: il comprensorio etneo in età moderna. Architecture in the Shadow of the Volcano: the Etna Region in the Early Mod…
2017
Tra le molteplici declinazioni che investono il rapporto architettura natura un caso particolarmente pregnante è quello dei contesti vulcanici, tanto per le implicazioni che riguardano la ricerca estetica e gli aspetti visivi, quanto la costruzione e la composizione materica degli edifici realizzati in tali contesti. La fascinazione suscitata dalle eruzioni vulcaniche attraverso i secoli ha certamente contribuito alla persistenza di miti e alla formazione di un immaginario collettivo, fino alla costruzione di identità locali radicate in territori fortemente caratterizzati, con significativi riflessi anche nella sfera architettonica. Per altro verso, la disponibilità di un’ampia gamma di mat…
La oposición senatorial en tiempos de Augusto: el caso de Antistio Labeón = The Senatorial Opposition in the Time of Augustus: The Case of Antistius …
2020
En el Senado siempre hubo individuos que se opusieron a Octavio y varios de ellos llegaron a conspirar contra él. Tras el confinamiento de Lépido del ámbito político, lo cual hizo que quedaran Antonio y Octavio frente a frente, este último fue objeto de varias conspiraciones. Esta forma de oposición más violenta es la que predomina en el relato de las fuentes clásicas, que recogen importantes datos para conocer las relaciones entre el Senado y el princeps. Sin embargo, de entre ellas, hay un hecho particular que llama la atención, ya que se trata de un caso de oposición no violenta y que llega a ser ensalzado en las fuentes (Tac., Ann., 3, 75), representado por el jurista Marco Antistio Lab…
BIFOCAL PAIRS OF IMAGES FOR LOW-COST SURVEY IN CLOSE RANGE PHOTOGRAMMETRY
2019
Abstract. This paper present a method for close range photogrammetry based on an camera positioning scheme in which two cameras capture an equal portion of an object at the same scale, but have different focal lengths and camera-to-object distances. This scheme is alternative to the stereoscopic scheme and is associated with a system of equations which permits one to calculate first the relief displacement of points on a photograph and then their relief relative to a reference plane. The obtained relief and relief displacement values can be used to produce low-cost orthophotographs by using software for image processing, which doesn’t need to be dedicated, but has to provide measurement and…