Search results for "Instrument"
showing 10 items of 5652 documents
Tiny Citizenship, Twisted Politics, and Christian Love in a Ugandan Church Choir
2022
In 1977, the Archbishop of the Church of Uganda, Janani Luwum, was killed under orders from President Idi Amin following his public criticism of Amin’s reign of terror. This article offers an ethnographic case study of a choir named in Luwum’s honour to extend existing research on the interrelations of Christianity, citizenship, and politics in contemporary Uganda. To do so, I draw a number of conceptual tools – tiny citizenship, authentic citizenship, twisted politics, and love – from work by and referencing Hannah Arendt, James Baldwin, and Gary Alan Fine. First, analyzing the choir’s participation in the national commemoration of Janani Luwum Day at Uganda’s State House in 2021, I argue …
Full parallax 3D display from Kinect v1 and v2
2017
We exploit the two different versions of Kinect, v1 and v2, for the calculation of microimages projected onto integral-imaging displays. Our approach is based on composing a three-dimensional (3-D) point cloud from a captured depth map and RGB information. These fused 3-D maps permit to generate an integral image after projecting the information through a virtual pinhole array. In our analysis, we take into account that each of the Kinect devices has its own inherent capacities and individualities. We illustrate our analysis with some imaging experiments, provide the distinctive differences between the two Kinect devices, and finally conclude that Kinect v2 allows the display of 3-D images …
Recent Advances in Forward Brillouin Scattering: Sensor Applications
2022
In-fiber opto-mechanics based on forward Brillouin scattering has received increasing attention because it enables sensing the surrounding of the optical fiber. Optical fiber transverse acoustic resonances are sensitive to both the inner properties of the optical fiber and the external medium. A particularly efficient pump and probe technique—assisted by a fiber grating—can be exploited for the development of point sensors of only a few centimeters in length. When measuring the acoustic resonances, this technique provides the narrowest reported linewidths and a signal-to-noise ratio better than 40 dB. The longitudinal and transverse acoustic velocities—normalized with the fiber radius—can b…
Enhancing spatial resolution in digital holographic microscopy by biprism structured illumination
2014
In a recent Letter by Seo et al. [Opt. Lett. 37, 4976 (2012)], the numerical correction of the quadratic phase distortion introduced by the microscope objective in digital holographic microscopy (DHM) has been presented. In this comment, we would like to draw to the attention of the authors and the readers in general that this approach could not be the optimal solution for maintaining the accuracy of the quantitative phase via DHM. We recall that the use of telecentric imaging systems in DHM simplifies the numerical processing of the phase images and produces more accurate measurements.
Innovative Approaches for Organizing an Inclusive Optics and Photonics Conference in Virtual Format
2023
The COVID pandemic is forcing the renewal of scientific conferences, offering opportunities to introduce technological and inclusive developments. Our analysis focuses on the implementation of inclusive practices for female and early-career researchers in a virtual scientific conference. This organization approach was applied in the XIII Spanish Optical Meeting (RNO2021), which was also characterized by avatars interacting in an online metaverse. The effectiveness of inclusive policies and novel technological tools was evaluated using the participation data and a post-conference survey. Our study reveals the high impact of inclusive actions and a strong interest in the scientific community …
Appropriation de l’écriture numérique : évaluation et parcours pédagogique
2014
International audience; Dans ce chapitre, nous proposons une réflexion autour de la mise en œuvre d'une notion centrale en IUT, en Info-Com, l'écriture numérique. A partir d'une méthode d'approche de cette notion, nous nous proposons de montrer comment constituer un parcours de formation. Cette méthode vise dans un premier temps à caractériser une notion essentielle dans le domaine de la communication en IUT. Ensuite, il s'agit d'analyser différentes pratiques de cours pour identifier la place de chacun d'eux par rapport à la caractérisation de la notion envisagée. Enfin, la méthode pose les étapes/parties d'un parcours de formation. Ces étapes reprennent les cours déjà mis en œuvre mais pr…
Komercdiplomātijas politika kā valsts nacionālo interešu aizstāvēšanas instruments
2016
Bakalaura darba “Komercdiplomātijas politika kā valsts nacionālo interešu aizstāvēšanas instruments” mērķis ir izvērtēt komercdiplomātijas politikas izveidošanās un attīstību pasaules un Latvijas valstu robežās, izpētīt komerciālās diplomātijas lomu valsts nacionālo interešu aizstāvēšanas procesā un izstrādāt priekšlikumus šo procesu pilnveidošanai, kā arī noskaidrot, vai ir nepieciešami mūsdienu globalizācijas apstākļos kvalificēti komercdiplomātijas speciālisti Latvijas darba tirgū. Darba gaitā tiek apskatīti komercdiplomātijas vēsturiskie un teorētiskie aspekti, valsts nacionālo interešu būtība un aizstāvēšanas metodes, pētīta pasaules un Latvijas valstu pieredze par pētāmo priekšmetu, k…
Ģimenes tēla izmantošana kā pārliecināšanas līdzeklis reklāmas komunikācijā. Radošā festivāla "Adwards" apbalvoto reklāmu analīze no 2006. līdz 2018.…
2019
Bakalaura darba “Ģimenes tēla izmantošana kā pārliecināšanas līdzeklis reklāmas komunikācijā. Radošā festivāla “Adwards” apbalvoto reklāmu analīze no 2006. līdz 2018. gadam” mērķis ir noskaidrot to, kā un cik lielā mērā ģimenes tēls ir mainījies pēdējo 13 gadu laikā, kā arī to, vai šī tēla maiņa tiek atspoguļota reklāmās. Papildu tam darba mērķis ir noskaidrot, vai ģimenes tēla izmantojums reklāmā ir efektīvs pārliecināšanas komunikācijas instruments. Darba teorētisko pamatojumu veido četras nodaļas. Pirmā no tām ir veltīta mainīgās populārās kultūras aprakstam, kas skaidro to, kādas populārās kultūras iezīmes veidojas sabiedrībā. Nākamā nodaļa apraksta patērētāju kultūru, šī nodaļa sevī ie…
Ekonomikas zinātnes. 1. izlaidums
1958
Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period
2016
This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…