Search results for "reflection"
showing 10 items of 645 documents
Modelling of light transmittance and reflectance in flat fluidized photoreactors
1992
In recent years several photon induced chemical reactions involving the use of a solid catalyst have been studied. Flat fluidized beds have proved to be promising devices for carrying out these photocatalytic reactions. There is therefore a need for the modelling of light interactions within such kinds of photoreactors. In this paper, a phenomenological model is proposed for simulating the light transmission and reflection in flat fluidized gas-solid photoreactors. A detailed description of the model is presented. The model predictions were compared with experimental data and a satisfactory agreement was found. Correlations were also suggested for the estimation of model parameters. Depuis …
Reflections on the role and design of online dictionaries for specialised translation
2014
Este artículo trata de los diccionarios especializados de traducción. Basado en los principios de la teoría funcional, analiza las diversas fases y subfases del proceso traductivo desde una perspectiva lexicográfica mostrando que un diccionario de traducción, si realmente pretende resolver las complejas necesidades de sus usuarios, debe ser mucho más que un simple diccionario bilingüe. A continuación presenta un concepto global de diccionario de traducción que incluye diversos componentes monolingües y bilingües en ambas direcciones entre las dos lenguas en cuestión. Finalmente, el artículo debate cómo este concepto puede aplicarse en Internet con el fin de desarrollar diccionarios de tradu…
Creating a bilingual pre-school classroom: the multilayered discourses of a bilingual teacher
2015
Teachers have an agentive role as they interpret, evaluate and develop language policies and practices. In the current study we interviewed a bilingual pre-school teacher in Finland during the first year of implementing a new way of working bilingually with a class of monolingual children. Applying nexus analysis, we explored the teacher discourses on the trajectory of the development of the new approach; the concepts, places and people that were circulating in her reflections; and how these connected with larger societal discourses. The analysis showed that the teacher's new bilingual language practices demanded the renegotiation of previously held personal and professional beliefs. The te…
Changing the ownership of ideas: Multimedial accomplishment of collaborative reflection in an organizational workshop
2022
Reflecting on work processes together with one's co-workers is becoming increasingly important in workplaces. This study examined collaborative reflection in the organizational context through analyzing a case of a complex workplace setting where an enterprise social media platform, talk-in-interaction, and handwriting were used to engage participants in the process of reflection. Drawing on the concept of remediation, the results show that collaborative reflection is interactionally accomplished through a multimedial activity chain, in which the ownership of presented ideas is transformed from individual ideas into shared views of the team. The study shows in detail how the process of coll…
Discovery-learning in grammar education:a study on anaphoric pronouns
2022
En les darreres dècades, en el context educatiu portuguès, com en altres països, la gramàtica ha estat un tema central de debat en l’educació L1. L’any 2001, amb la publicació del Currículum Nacional d’Educació Bàsica, la gramàtica, que es va anomenar «coneixement explícit de la llengua», es va considerar un dels components bàsics del currículum de L1 portuguès. Des d’aquesta perspectiva, inspirada en les propostes del moviment anglosaxó de consciència lingüística, l’objectiu principal de l’educació gramatical és desenvolupar els coneixements implícits que els infants ja tenen i utilitzen en un coneixement cada cop més reflexiu i explícit. En aquesta concepció, en què se suposa que «la majo…
Reina María Rodríguez: A Poetic of the Limits to Cuba
2013
in this article we intend to approach some of the major controversies that have affected the poetry written in Cuba in recent decades: the reflection on the relationship of poetic language with reality; the writing of the limits, the remains —that what ideology hides—; the crossing of different genres and artistic languages —poetry, fiction, image—, etc. To do this, we analyze two books published by the Cuban poet Reina Maria Rodríguez: Travelling (1995) and Variedades de Galiano (2008). And their relationship to the American “Language Poets”.
Dimensional control of metallic objects by artificial vision: contribution to lighting condition studies
1999
We present an original method that enables real time automatic dimensional control of defects on metallic objects. The method is based on the theoretical and experimental study of light reflection mechanisms that can be seen as a function of the surface roughness and of the light source size. We show that it is possible to reconstruct the profile of an object from a single gray level image. An industrial application enables us to validate our results. Finally, an error computation fixes the limits of our method and enables us to better understand illumination problems.
On Complex Formation between 5-Fluorouracil and β-Cyclodextrin in Solution and in the Solid State: IR Markers and Detection of Short-Lived Complexes …
2020
In this work, the nuclear magnetic resonance (NMR) and IR spectroscopic markers of the complexation between 5-fluorouracil (5-FU) and &beta
Evaluation of the revised sense of coherence scale in a representative German sample.
2018
Background and objectivesTo evaluate the Revised Sense of Coherence (SOC-R) scale in a large representative German sample.DesignA nationwide household survey involving a total of 2510 face-to-face interviews.MethodsIn addition to the SOC-R, childhood trauma and maltreatment (CTM), lifetime traumatic events (Childhood Trauma Questionnaire, CTQ, and the Life Events Checklist for DSM-5, LEC-5), and mental health (Patient Health Questionnaire, PHQ-4) were assessed.ResultsThe final sample consisted of N = 2373 participants (52.3% females; M = 48.24 years). Confirmatory factor analyses confirmed a three-factor structure for the SOC-R ('manageability', 'balance', 'reflection') with acceptable indi…
Visualization of Keratin with Diffuse Reflectance and Autofluorescence Imaging and Nonlinear Optical Microscopy in a Rare Keratinopathic Ichthyosis.
2021
Keratins are one of the main fluorophores of the skin. Keratinization disorders can lead to alterations in the optical properties of the skin. We set out to investigate a rare form of keratinopathic ichthyosis caused by KRT1 mutation with two different optical imaging methods. We used a newly developed light emitting diode (LED) based device to analyze autofluorescence signal at 405 nm excitation and diffuse reflectance at 526 nm in vivo. Mean autofluorescence intensity of the hyperkeratotic palmar skin was markedly higher in comparison to the healthy control (162.35 vs. 51.14). To further assess the skin status, we examined samples from affected skin areas ex vivo by nonlinear optical micr…