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Journal articles on the topic 'Ambient artefact'

Author: Grafiati

Published: 24 June 2021

Last updated: 29 July 2025

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1

Drinovec, Luka, Uroš Jagodič, Luka Pirker, et al. "A dual-wavelength photothermal aerosol absorption monitor: design, calibration and performance." Atmospheric Measurement Techniques 15, no. 12 (2022): 3805–25. http://dx.doi.org/10.5194/amt-15-3805-2022.

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Abstract. There exists a lack of aerosol absorption measurement techniques with low uncertainties and without artefacts. We have developed the two-wavelength Photothermal Aerosol Absorption Monitor (PTAAM-2λ), which measures the aerosol absorption coefficient at 532 and 1064 nm. Here we describe its design, calibration and mode of operation and evaluate its applicability, limits and uncertainties. The 532 nm channel was calibrated with ∼ 1 µmol mol−1 NO2, whereas the 1064 nm channel was calibrated using measured size distribution spectra of nigrosin particles and a Mie calculation. Since the a

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Mikuska, P., A. Even, A. Khlystov, H. M. ten Brink, G. P. Wyers, and J. Slanina. "Artefact-free method for size-resolved chemical analysis of ambient aerosols." Journal of Aerosol Science 28 (September 1997): S443—S444. http://dx.doi.org/10.1016/s0021-8502(97)85221-4.

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Elvira, Juan. "Embraced by swirls of ether. Atmospheric imagination and the representation of assimilation and effect." SHS Web of Conferences 64 (2019): 01018. http://dx.doi.org/10.1051/shsconf/20196401018.

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Atmospheres have a diffuse, ungraspable nature that make them problematic to represent. Diverse artistic manifestations have relentlessly tried to grasp air infused with properties. Ether is the concept chosen to test the way the history of atmospheric representation was initiated; a cultural artefact whose representation permeates our present imaginary. Such substance has been the image of sensual assimilation, of psychological life and complex ambient effects. Before ambient was subject to technical representation, images of air within can be called ‘a state of animation’ opened up the ways

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Firoz Khan, Md, Mazrura Sahani, Mohd Shahrul Mohd Nadzir, et al. "Volatile Organic Compound Analysis by Sorbent Tube-Thermal Desorption-Gas Chromatography: A Review." International Journal of Engineering & Technology 7, no. 3.14 (2018): 165. http://dx.doi.org/10.14419/ijet.v7i3.14.16878.

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Volatile organic compounds (VOCs) play an important role in the generation of ground level ozone and secondary organic aerosol. Most tropical countries such as Malaysia, Singapore, Indonesia, Brunei experience high ozone pollution. Beside ozone, oxides of nitrogen (NOx) from vehicular emissions also play an important role in photochemical pollution. NOx, particularly nitric oxide (NO), helps to ‘clean up’ ozone concentrations close to traffic in the ambient air of urban areas. Thus, knowledge of the chemistry of ozone-VOCs-NOx and finding the sources of VOCs are crucial to proceed with an appr

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Crilley, Leigh R., Marvin Shaw, Ryan Pound, et al. "Evaluation of a low-cost optical particle counter (Alphasense OPC-N2) for ambient air monitoring." Atmospheric Measurement Techniques 11, no. 2 (2018): 709–20. http://dx.doi.org/10.5194/amt-11-709-2018.

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Abstract. A fast-growing area of research is the development of low-cost sensors for measuring air pollutants. The affordability and size of low-cost particle sensors makes them an attractive option for use in experiments requiring a number of instruments such as high-density spatial mapping. However, for these low-cost sensors to be useful for these types of studies their accuracy and precision need to be quantified. We evaluated the Alphasense OPC-N2, a promising low-cost miniature optical particle counter, for monitoring ambient airborne particles at typical urban background sites in the UK

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Liu, Y., M. Sklorz, J. Schnelle-Kreis, et al. "Oxidant denuder sampling for analysis of polycyclic aromatic hydrocarbons and their oxygenated derivates in ambient aerosol: Evaluation of sampling artefact." Chemosphere 62, no. 11 (2006): 1889–98. http://dx.doi.org/10.1016/j.chemosphere.2005.07.049.

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Yttri, K. E., D. Simpson, K. Stenström, H. Puxbaum, and T. Svendby. "Source apportionment of the carbonaceous aerosol in Norway – quantitative estimates based on <sup>14</sup>C, thermal-optical and organic tracer analysis." Atmospheric Chemistry and Physics Discussions 11, no. 3 (2011): 7375–422. http://dx.doi.org/10.5194/acpd-11-7375-2011.

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Abstract. In the present study, source apportionment of the ambient summer and winter time particulate carbonaceous matter (PCM) in aerosol particles (PM1 and PM10) has been conducted for the Norwegian urban and rural background environment. Statistical treatment of data from thermal-optical, 14C and organic tracer analysis using Latin Hypercube Sampling has allowed for quantitative estimates of seven different sources contributing to the ambient carbonaceous aerosol. These are: elemental carbon from combustion of biomass (ECbb) and fossil fuel (ECff), organic carbon from combustion of biomass

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Yttri, K. E., D. Simpson, K. Stenström, H. Puxbaum, and T. Svendby. "Source apportionment of the carbonaceous aerosol in Norway – quantitative estimates based on <sup>14</sup>C, thermal-optical and organic tracer analysis." Atmospheric Chemistry and Physics 11, no. 17 (2011): 9375–94. http://dx.doi.org/10.5194/acp-11-9375-2011.

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Abstract. In the present study, source apportionment of the ambient summer and winter time particulate carbonaceous matter (PCM) in aerosol particles (PM1 and PM10) has been conducted for the Norwegian urban and rural background environment. Statistical treatment of data from thermal-optical, 14C and organic tracer analysis using Latin Hypercube Sampling has allowed for quantitative estimates of seven different sources contributing to the ambient carbonaceous aerosol. These are: elemental carbon from combustion of biomass (ECbb) and fossil fuel (ECff), primary and secondary organic carbon aris

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Yttri, K. E., C. Dye, O. A. Braathen, D. Simpson, and E. Steinnes. "Carbonaceous aerosols at urban influenced sites in Norway." Atmospheric Chemistry and Physics Discussions 8, no. 6 (2008): 19487–525. http://dx.doi.org/10.5194/acpd-8-19487-2008.

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Abstract. Little is known regarding levels and source strength of carbonaceous aerosols in Scandinavia. In the present study, ambient aerosol (PM10 and PM2.5) concentrations of elemental carbon (EC), organic carbon (OC), water-insoluble organic carbon (WINSOC), and water-soluble organic carbon (WSOC) are reported for a curbside site, an urban background site, and a suburban site in Norway in order to investigate their spatial and seasonal variations. Aerosol filter samples were collected using tandem filter sampling to correct for the positive sampling artefact introduced by semi volatile OC.

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10

Lewis, Alastair C., James D. Lee, Peter M. Edwards, et al. "Evaluating the performance of low cost chemical sensors for air pollution research." Faraday Discussions 189 (2016): 85–103. http://dx.doi.org/10.1039/c5fd00201j.

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Low cost pollution sensors have been widely publicized, in principle offering increased information on the distribution of air pollution and a democratization of air quality measurements to amateur users. We report a laboratory study of commonly-used electrochemical sensors and quantify a number of cross-interferences with other atmospheric chemicals, some of which become significant at typical suburban air pollution concentrations. We highlight that artefact signals from co-sampled pollutants such as CO<sub>2</sub> can be greater than the electrochemical sensor signal generated by the measura

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11

Gysel, M., J. Crosier, D. O. Topping, et al. "Closure between measured and modelled particle hygroscopic growth during TORCH2 implies ammonium nitrate artefact in the HTDMA measurements." Atmospheric Chemistry and Physics Discussions 6, no. 6 (2006): 12503–48. http://dx.doi.org/10.5194/acpd-6-12503-2006.

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Abstract. Measurements of aerosol properties were made in aged polluted and clean background air masses encountered at the North Norfolk (UK) coastline during the second field campaign of the Tropospheric ORganic CHemistry project (TORCH2) in May 2004. Hygroscopic growth factor (GF) measurements were performed at 90% relative humidity (RH) for D0=27–217 nm particles using a Hygroscopicity Tandem Differential Mobility Analyser (HTDMA), while the aerosol composition was simultaneously measured with an Aerodyne aerosol mass spectrometer (Q-AMS). During the clean background events the aerosol was

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12

Schaap, M., R. P. Otjes, and E. P. Weijers. "Illustrating the benefit of using hourly monitoring data on secondary inorganic aerosol and its precursors for model evaluation." Atmospheric Chemistry and Physics Discussions 10, no. 5 (2010): 12341–70. http://dx.doi.org/10.5194/acpd-10-12341-2010.

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Abstract. Secondary inorganic aerosol, most notably ammonium nitrate and ammonium sulphate, is an important contributor to ambient particulate mass and provides a means for long range transport of acidifying components. The modelling of the formation and fate of these components is challenging. Especially, the formation of the semi-volatile ammonium nitrate is strongly dependent on ambient conditions and the precursor concentrations. For the first time an hourly artefact free data set from the MARGA instrument is available for the period of a full year (1 August 2007 to 1 August 2008) at Cabau

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Schaap, M., R. P. Otjes, and E. P. Weijers. "Illustrating the benefit of using hourly monitoring data on secondary inorganic aerosol and its precursors for model evaluation." Atmospheric Chemistry and Physics 11, no. 21 (2011): 11041–53. http://dx.doi.org/10.5194/acp-11-11041-2011.

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Abstract. Secondary inorganic aerosol, most notably ammonium nitrate and ammonium sulphate, is an important contributor to ambient particulate mass and provides a means for long range transport of acidifying components. The modelling of the formation and fate of these components is challenging. Especially, the formation of the semi-volatile ammonium nitrate is strongly dependent on ambient conditions and the precursor concentrations. For the first time an hourly artefact free data set from the MARGA instrument is available for the period of a full year (1 August 2007 to 1 August 2008) at Cabau

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Douthe, Cyril, Erwin Dreyer, Oliver Brendel, and Charles R. Warren. "Is mesophyll conductance to CO2 in leaves of three Eucalyptus species sensitive to short-term changes of irradiance under ambient as well as low O2?" Functional Plant Biology 39, no. 5 (2012): 435. http://dx.doi.org/10.1071/fp11190.

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Mesophyll conductance to CO2 (g m) limits the diffusion of CO2 to the sites of carboxylation, and may respond rapidly (within minutes) to abiotic factors. Using three Eucalyptus species, we tested the rapid response of g m to irradiance under 21% and 1% O2. We used simultaneous measurements of leaf gas exchange and discrimination against 13CO2 with a tuneable diode laser absorption spectrometer. Measurements under 1% O2 were used to limit uncertainties due to 13C–12C fractionation occurring during photorespiration. Switching irradiance from 600 to 200 µmol m–2 s–1 led to a ≈60% decrease of g m

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15

Yttri, K. E., C. Dye, O. A. Braathen, D. Simpson, and E. Steinnes. "Carbonaceous aerosols in Norwegian urban areas." Atmospheric Chemistry and Physics 9, no. 6 (2009): 2007–20. http://dx.doi.org/10.5194/acp-9-2007-2009.

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Abstract. Little is known regarding levels and source strength of carbonaceous aerosols in Scandinavia. In the present study, ambient aerosol (PM10 and PM2.5) concentrations of elemental carbon (EC), organic carbon (OC), water-insoluble organic carbon (WINSOC), and water-soluble organic carbon (WSOC) are reported for a curbside site, an urban background site, and a suburban site in Norway in order to investigate their spatial and seasonal variations. Aerosol filter samples were collected using tandem filter sampling to correct for the positive sampling artefact introduced by volatile and semiv

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16

Soares, Ana Paula, Jessica do Prado Valeriano, and Tate Aquino de Arruda. "ANÁLISE DE ARTEFAcTO CULTURAL MIDIÁTICO: PRINCESA MONONOKE (MONONOKE HIME, STUDIO GHIBLI, 1997)." Linhas Críticas 28 (October 18, 2022): e43974. http://dx.doi.org/10.26512/lc28202243974.

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O presente estudo busca analisar o filme de animação “Princesa Mononoke” quanto a alguns de seus temas centrais - dentre eles a ecologia, a influência antrópica na natureza e a espiritualidade - como forma de introduzir estes conceitos em sala de aula para estimular discussões e debates sobre Educação Ambiental. Ao trazer para o ambiente escolar um artefato midiático oriental destinado ao público juvenil – conquanto maduro e gráfico no que concerne seu enredo –, pretende-se abrir espaço para expandir horizontes e realidades, além de permitir a criação de pontes entre diferentes culturas, promo

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17

Ramírez-Luján, Heriberto, Javier Tarango, and Juan D. Machin-Mastromatteo. "El artefacto como sistema generador de conocimiento en ambientes científicos de la nanotecnología." Scire: representación y organización del conocimiento 29, no. 1 (2023): 51–62. http://dx.doi.org/10.54886/scire.v29i1.4902.

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La mayor parte del equipamiento del mundo está compuesto por artefactos: edificios, carreteras, redes eléctricas, antenas de telecomunicación, automóviles, viviendas, teléfonos móviles, por mencionar solo algunos. En su conjunto, desde la antigüedad se han ido creando, principalmente con fines de mejorar las condiciones de vida de las personas. Sin embargo, es en épocas recientes que este moblaje se ha convertido en objeto de estudio para su análisis filosófico, histórico y sociológico. Este artículo se divide en tres partes: (1) un recuento histórico de los aparatos epistémicos, especialmente

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18

Retailleau, Lise, and Gregory C. Beroza. "Towards structural imaging using seismic ambient field correlation artefacts." Geophysical Journal International 225, no. 2 (2021): 1453–65. http://dx.doi.org/10.1093/gji/ggab038.

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SUMMARY Correlations of the ambient seismic field recorded by seismic stations carry information about the wave propagation between the stations. They also contain information about the ambient field—both the source of the ambient field, and sources of scattering that contribute to it. The waves that comprise the ambient field are subject to scattering due to the heterogeneous Earth, which can generate supplementary arrivals on the correlation functions. We use these effects to locate sources of signals linked to scattering. For this analysis, we use correlation functions computed from continu

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19

Di Biagio, Claudia, Paola Formenti, Mathieu Cazaunau, Edouard Pangui, Nicolas Marchand, and Jean-François Doussin. "Aethalometer multiple scattering correction <i>C</i><sub>ref</sub> for mineral dust aerosols." Atmospheric Measurement Techniques 10, no. 8 (2017): 2923–39. http://dx.doi.org/10.5194/amt-10-2923-2017.

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Abstract. In this study we provide a first estimate of the Aethalometer multiple scattering correction Cref for mineral dust aerosols. Cref is an empirical constant used to correct the aerosol absorption coefficient measurements for the multiple scattering artefact of the Aethalometer; i.e. the filter fibres on which aerosols are deposited scatter light and this is miscounted as absorption. The Cref at 450 and 660 nm was obtained from the direct comparison of Aethalometer data (Magee Sci. AE31) with (i) the absorption coefficient calculated as the difference between the extinction and scatteri

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20

Hernández Pezzi, Carlos. "Artefactos de los nuevos sistemas urbanos." Astrágalo. Cultura de la arquitectura y la ciudad 16 (2000): 71–84. http://dx.doi.org/10.12795/astragalo.2000.i16.05.

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Desde una perspectiva cultural, el autor examina los comportamientos de la arquitectura en el medio ambiente como artefacto y como lenguaje. Para significar el desarraigo cultural o la arquitectura antiurbana, en términos análogos a una problemática medioambiental, se puede hablar de «ruido de la arquitectura» o de «contaminación de/lenguaje».

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21

Pérez Fuentes, Wilberto. "Química, medio ambiente y sociedad aspectos de un proyecto de sostenibilidad ambiental en el aula." Encuentro de Ciencias Básicas 7 (2023): 61–72. http://dx.doi.org/10.14718/encuentrocienc.basicas.2023.7.6.

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La química aplicada a la sostenibilidad ambiental debe definirse como la transformación de la sociedad en general y cada individuo en particular. La necesidad de abastecer de agua a algunas áreas de la Universitaria causó una inquietud por parte de los estudiantes de primer semestre de las ingenierías industrial y mecatrónica. La construcción de un filtro purificador de agua es el campo para aplicar algunos conceptos básicos de la química, para ayudar a la conservación del medio ambiente y para ligar al núcleo familiar en la construcción de este artefacto. Las comparaciones de las épocas de pr

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Pradhan, Jaya Bishnu. "Cultural artefacts as a metaphor to communicate mathematical ideas." Revemop 2 (March 4, 2020): e202015. http://dx.doi.org/10.33532/revemop.e202015.

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The cultural artifacts created by the culture of a particular group of people embed sophisticated mathematical ideas and knowledge. The cultural artifacts familiar to students mediate to communicate abstract ideas of mathematics. This paper is intended to explore the mathematical ideas embedded in cultural artifacts and to assess its contribution to the process of teaching and learning of school mathematics. The ethnographic methodology was used to collect the data. Highly sophisticated mathematical ideas were found in the analysis of different cultural artifacts observed in the out-of-school

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Varona, Erika TM, Carlos AA Páez, and Alejandro B. Moreno. "Artefactos Explosivos Improvisados, Atención En Ambientes Austeros." Panamerican Journal of Trauma, Critical Care & Emergency Surgery 6, no. 2 (2017): 61–67. http://dx.doi.org/10.5005/jp-journals-10030-1174.

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RESUMEN Introducción El trauma de guerra no convencional aún no está plenamente estudiado, se busca identificar tipos de lesiones en pacientes heridos por artefactos explosivos improvisados (AEI), en Colombia entre febrero de 2004 y mayo de 2014 que fueron atendidos por una de las unidades de atención quirúrgica móvil del ejército nacional de Colombia en ambiente austero (selva), con recursos limitados y remitidos posteriormente a hospital de cuarto nivel para manejo definitivo. Materiales y métodos Estudio observacional, descriptivo basado en una cohorte histórica. Se analizó la base de datos

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Sarmento, Thaisa Sampaio. "DESIGN PARTICIPATIVO EM PROJETO DE AMBIENTES." Revista Projetar - Projeto e Percepção do Ambiente 8, no. 2 (2023): 56–68. http://dx.doi.org/10.21680/2448-296x.2023v8n2id31252.

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O design participativo se apresenta como um paradigma projetual de design que orienta coletar, analisar e projetar um sistema, ou artefato, ou até mesmo um ambiente físico, juntamente com a participação de usuários. Esse método tem foco na participação de diferentes pessoas e atores nas etapas do desenvolvimento projetual, visando estabelecer uma plataforma interativa de troca de experiências e desenvolvimento de novas ideias, para solucionar problemas e propor soluções mais criativas e eficientes. Ao longo dos anos, percebe-se uma maior preocupação entre arquitetos e designers em estabelecer

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Xi, Chaoqiang, Jianghai Xia, Binbin Mi, Tianyu Dai, Ya Liu, and Ling Ning. "Modified frequency–Bessel transform method for dispersion imaging of Rayleigh waves from ambient seismic noise." Geophysical Journal International 225, no. 2 (2021): 1271–80. http://dx.doi.org/10.1093/gji/ggab008.

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SUMMARY Ambient noise surface wave methods have gained much attention among geophysical and civil engineering communities because of their capability of determining near-surface shear wave velocities in highly populated urban areas. Higher mode information of surface waves is important in dispersion curve inversion for shear wave velocity structure. The frequency–Bessel (F-J) transform method is an effective tool for multimode surface wave extraction, which has been applied to multiscale investigations of the Earth structure. The measured dispersion energy with the F-J method, however, would u

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Rodrigues, Maria das Dôres Farias, and Karla Rosane do Amaral Demoly. "O jogo de areia como ferramenta na Educação Ambiental." Revista Brasileira de Educação Ambiental (RevBEA) 9, no. 2 (2014): 395–411. http://dx.doi.org/10.34024/revbea.2014.v9.1839.

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Este artigo discute experiências de formação em educação ambiental desenvolvidas no emprego do artefato técnico designado como o jogo de areia em uma escola pública estadual de Mossoró-RN. A rede teórica de sustentação da análise encontramos desde a inverção da ferramenta jogo de areia com os trabalhos de Dora Marai Kalf, Margareth Lowenfeldt, dentro outros que trazem o enfoque da Psicologia Clínica. Temos a relação ainda recente do jogo de areia na educação escolar e nosso estudo participa desta construção embasada nas teorias da Biologia da Cognição de Humberto Maturana em diálogo com outros

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Do Amaral, Alessandra Meireles, Ana Regina Dalmaschio Carrijo, Ana Nery Furlan Mendes, and Sandra Mara Santana Rocha. "DESSALINIZADOR SOLAR PORTÁTIL: UM ARTEFATO TRANSDISCIPLINAR." Revista Conhecimento Online 1 (January 1, 2018): 88. http://dx.doi.org/10.25112/rco.v1i0.514.

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O dessalinizador solar portátil é um artefato de ensino transdisciplinar que proporciona uma abordagem diferenciada de temas atuais e relevantes, podendo contribuir de forma significativa com o processo de aprendizagem escolar e o desenvolvimento do aluno como cidadão, conforme as exigências atuais do Ensino Médio. A sua produção e a utilização tem por objetivo a sensibilização dos alunos a respeito da problemática de escassez da água, propondo um método alternativo e de baixo custo que visa à purificação da água salgada, movido à energia solar. Dentro das abordagens curriculares deste artefat

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López Hernández, Eduardo S., Ana Rosa Rodríguez Luna, and Carlos David López Ricalde. "Gestión sustentable de pilas e intervenciones educativas para mitigar sus efectos en la salud humana y el ambiente." HORIZONTE SANITARIO 10, no. 2 (2014): 29. http://dx.doi.org/10.19136/hs.a10n2.123.

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El trabajo se realizó dentro del Programa Ambiental para el Desarrollo Sustentable de la Universidad Juárez Autónoma de Tabasco (López-Hernández y Priego, 2007), para planear alternativas sobre residuos sólidos altamente contaminantes como las pilas (dispositivo pequeño en el que la energía química se transforma en eléctrica. Tiene múltiples aplicaciones como fuente de energía en pequeños aparatos. (RAE, 2011). El manejo incorrecto de estos residuos es un problema socio-ambiental con efectos mundiales. Se requieren nuevos enfoques en el manejo para la disposición final al término de su vida út

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López Hernández, Eduardo S., Ana Rosa Rodríguez Luna, and Carlos David López Ricalde. "Gestión sustentable de pilas e intervenciones educativas para mitigar sus efectos en la salud humana y el ambiente." HORIZONTE SANITARIO 10, no. 2 (2014): 29. http://dx.doi.org/10.19136/hs.v10i2.123.

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El trabajo se realizó dentro del Programa Ambiental para el Desarrollo Sustentable de la Universidad Juárez Autónoma de Tabasco (López-Hernández y Priego, 2007), para planear alternativas sobre residuos sólidos altamente contaminantes como las pilas (dispositivo pequeño en el que la energía química se transforma en eléctrica. Tiene múltiples aplicaciones como fuente de energía en pequeños aparatos. (RAE, 2011). El manejo incorrecto de estos residuos es un problema socio-ambiental con efectos mundiales. Se requieren nuevos enfoques en el manejo para la disposición final al término de su vida út

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Guimarães, Iara Vieira, and Lucélia Bárbara Moraes Hortêncio. "O discurso sobre sustentabilidade e os desafios ambientais na Revista Nova Escola: notas para reflexão." Pesquisa em Educação Ambiental 10, no. 2 (2015): 63. http://dx.doi.org/10.18675/2177-580x.vol10.n2.p63-77.

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<p>O texto analisa um artefato cultural criado para promover a informação e a formação de professores da educação básica. Busca-se compreender o modo como a Revista Nova Escola (RNE), publicada pela Editora Abril, apresenta aos educadores diferentes tipos de textos e sentidos sobre a questão da Educação Ambiental no ano de 2012. De maneira mais específica a problemática que orientou a discussão empreendida no presente texto pode ser expressa segundo os seguintes questionamentos: como as questões ambientais são apresentadas na Revista Nova Escola? Que discursos a revista defende sobre mei

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Pfeifer, Sascha, Thomas Müller, Andrew Freedman, and Alfred Wiedensohler. "The influence of the baseline drift on the resulting extinction values of a cavity attenuated phase shift-based extinction monitor (CAPS PMex)." Atmospheric Measurement Techniques 13, no. 5 (2020): 2161–67. http://dx.doi.org/10.5194/amt-13-2161-2020.

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Abstract. The effect of the baseline drift on the resulting extinction values of three cavity attenuated phase shift-based extinction monitors (CAPS PMex) with different wavelengths and the respective correlation with NO2 was analysed for an urban background station. A drift of more than 0.8 Mm-1min-1 was observed for ambient air, with high probability caused by traffic-emissions-driven changes in carrier gas composition. The baseline drift leads to characteristic measurement artefacts for particle extinction. Artificial particle extinction values of approximately 4 Mm−1 were observed using a

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Paschoarelli, Luis Carlos, Guilherme Barbosa dos Santos, and Marco Antônio dos Reis Pereira. "Aplicação de materiais sustentáveis no design de artefatos de uso cotidiano: o caso do cabo de tesoura em bambu laminado." Design e Tecnologia 9, no. 17 (2019): 20–29. http://dx.doi.org/10.23972/det2019iss17pp20-29.

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O desenvolvimento de produtos sustentáveis requer a pesquisa e aplicação de novos materiais e processos de baixo impacto ambiental. Alguns componentes utilizados na fabricação de artefatos de uso diário podem causar desequilíbrio ao meio ambiente quando descartados indevidamente, logo, a substituição dos materiais e processos atualmente empregados por outros menos nocivos indica vantagens ambientais e também competitivas. Esses tipos de materiais apontam para novas fontes de matérias-primas, inserem novos setores na cadeia de suprimentos e contribuem para a gestão em logística reversa. Conside

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Meske, Verónica. "Diego Parente (2016). Artefactos, cuerpo y ambiente. Exploraciones sobre filosofía de la técnica. Mar del Plata , La Bola Editora , 159 pp." Redes. Revista de Estudios Sociales de la Ciencia y la Tecnología 23, no. 44 (2017): 179–86. https://doi.org/10.48160/18517072re44.122.

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Graham, Elizabeth, David M. Pendergast, Jorge Calvera, and Juan Jardines. "Excavations at Los Buchillones, Cuba." Antiquity 74, no. 284 (2000): 263–64. http://dx.doi.org/10.1017/s0003598x00059160.

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Between 1989 and 1994, north coast fishermen Nelson Torna and Pedro Guerra salvaged approximately 195 well-preserved wooden artefacts, mostly of lignum vitcre, from recently disturbed marine sediments near their village of Punta Alegre, in Ciego de Avila, Cuba. They had collected the artefacts from a shallow lagoon, and from the shoreline near their village at a place known as Los Buchillones. The wooden artefacts include pins, eyed needles, hooks, fragments of dishes, handles for axes (including two that retained the stone tools), duhos or stools that served as badges of rank in Taino society

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Murillo, Rosa Elvira Páez, and Víctor Larios Osorio. "Un acercamiento hacia la enseñanza de números reales con estudiantes de primer año de ingeniería." REMATEC 17, no. 42 (2022): 193–210. http://dx.doi.org/10.37084/rematec.1980-3141.2022.n42.p193-210.id457.

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En este artículo presentamos los resultados obtenidos de la puesta en práctica de tres actividades didácticas utilizadas en la enseñanza de la noción de número real, con estudiantes de primer año de la licenciatura en ingenierías. Estas actividades han sido diseñadas en función del enfoque propuesto por Bronner (1997). Se realiza un análisis cualitativo del trabajo matemático desarrollado por los estudiantes en estas actividades, fundamentado en el marco de la teoría de Espacios de Trabajo Matemático. Los resultados evidencian que la activación de la génesis instrumental con el artefacto tecno

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Sierra Rojas, Daniela. "Artefacto analógico de la abeja y su importancia para la vida." Grafías, disciplinares de la UCPR, no. 25 (April 1, 2014): 81–83. http://dx.doi.org/10.31908/grafias.v0i25.1376.

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Esta reflexión enfoca el proceso de diseño llevado a cabo en el Taller de diseño II, que constaba de una investigación y un análisis de la relación entre conceptos, comportamientos de seres vivos y exploración de materiales. Las abejas adquieren un rol vital en el planeta; a través de su danza nos recuerdan la conexión entre ellas, el hombre y el ambiente que los rodea, pues con ella polinizan, y hacen posible la agricultura como sector productivo. De allí que el proyecto final para segundo corte, se basó en la construcción de un concepto formal para concienciar, a través de un artefacto funci

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Pireddu, Silvia. "Voices in the museum: Exploring soundscapes in curatorial practices." Punctum. International Journal of Semiotics 10, no. 2 (2024): 111–33. https://doi.org/10.18680/hss.2024.0024.

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The semiotics of curating is a theoretical approach that focuses on constructing, communicating, and interpreting signs, symbols, and meanings in museum exhibitions. With the increasing prevalence of digital technologies, curators are tasked with balancing different technologies, encompassing visual, sound, and multimodal experiences. In this perspective, the paper examines the role of sound as a semiotic dimension within exhibition contexts, analyzing how it functions as a potent signifier and enriching the interpretation of curated spaces with exhibited artefacts. This study explores the sem

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Cárdenas Salgado, Enrique Diógenes. "Los artefactos tecnológicos y su relación con la ciencia, la tecnología, la sociedad, el medio ambiente y su aporte a la empresa." Revista "Boletín el Conuco" 3, no. 1 (2021): 1–11. http://dx.doi.org/10.22579/2619-614x.530.

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   El presente artículo es producto del trabajo de investiga- ción que se desarrolló en el marco del doctorado Interinsti- tucional en Educación, tiene como objetivo, contribuir a la búsqueda de la relación de los artefactos tecnológicos con la ciencia, la tecnología, la sociedad, el medio ambiente y su aporte a la empresa. Los hallazgos buscan a partir de la pregunta: ¿Es posible hacer arqueología a los artefactos tecnológicos para develar las relaciones que éste tiene con la ciencia, la tecnología, la sociedad, el medio ambiente y la empresa, generar una estrategia pa

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Martinez, César Augusto Ferrari. "Entrevista com Erik Swyngedouw." Geosul 33, no. 67 (2018): 277–87. http://dx.doi.org/10.5007/2177-5230.2018v33n67p277.

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Erik Swyngedouw é um geógrafo e ecologista político belga radicado no Reino Unido, onde é Professor de Geografia Política e Econômica na Escola de Meio Ambiente, Educação e Desenvolvimento da Universidade de Manchester. Com formação ambiental como engenheiro agrônomo e doutorado em geografia crítica, Swyngedouw é um dos autores-chave no entendimento dos usos da natureza como artefato de poder na produção do espaço pela modernidade. Sua obra inclui estudos sobre escala, discursos sobre a natureza, controle de redes hídricas, contextos de pós-democracia – todos pautados por densa análise crítica

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Michoud, V., R. F. Hansen, N. Locoge, P. S. Stevens, and S. Dusanter. "Detailed characterizations of a Comparative Reactivity Method (CRM) instrument: experiments vs. modelling." Atmospheric Measurement Techniques Discussions 8, no. 4 (2015): 3803–50. http://dx.doi.org/10.5194/amtd-8-3803-2015.

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Abstract. The Hydroxyl radical (OH) is an important oxidant in the daytime troposphere that controls the lifetime of most trace gases, whose oxidation leads to the formation of harmful secondary pollutants such as ozone (O3) and Secondary Organic Aerosols (SOA). In spite of the importance of OH, uncertainties remain concerning its atmospheric budget and integrated measurements of the total sink of OH can help reducing these uncertainties. In this context, several methods have been developed to measure the first-order loss rate of ambient OH, called total OH reactivity. Among these techniques,

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Corber, Andrew, Wajid Chishty, and Patrizio Vena. "Planar LIF/MIE ratio droplet sizing using structured laser sheet imaging at elevated ambient pressures." Journal of the Global Power and Propulsion Society 4 (May 13, 2020): 38–47. http://dx.doi.org/10.33737/jgpps/115249.

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LIF/Mie ratio-metric imaging was used to characterize sprays produced by a simple hollow-cone pressure atomizer, operating under elevated ambient pressures up to 10 atm. A structured laser sheet was used as the source of illumination to suppress the multiple scattered light, generating images that are free of the artefacts typically found in conventional laser sheet images. The resulting LIF/Mie ratio-metric images were calibrated using Phase Doppler anemometry to generate axial planar maps of the spray’s Sauter-mean diameter (SMD). This calibration methodology was applied over a range of ambi

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V. Costa Gomes, Carolina, Jorge Luis. C. Ramos, João Carlos. Sedraz Silva, and Rodrigo Lins Rodrigues. "Um dashboard para a percepção dos professores sobre as atividades de estudantes em ambiente virtual de aprendizagem." RENOTE 19, no. 2 (2021): 213–22. http://dx.doi.org/10.22456/1679-1916.121209.

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Este estudo apresenta o desenvolvimento de um dashboard para ser incorporado a um ambiente virtual de aprendizagem. O dashboard permite aos professores um maior acompanhamento das atividades dos estudantes no ambiente. As diretrizes da pesquisa foram definidas a partir da análise de três outras propostas similares, sendo o método Design Science Research escolhido para o percurso metodológico. Os resultados apontam que o dashboard obteve bons indicadores, tanto para questões de usabilidade quanto para aceitação do artefato proposto.

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Kumar, Vinaya, and Madhu Lata Nirmal. "Image Dehazing from Repeated Averaging Filters with Artificial Neural Network." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (2022): 1240–49. http://dx.doi.org/10.22214/ijraset.2022.40484.

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Abstract: The physical process of converting an image signal into a physical image is known as image processing. Either a digital or analogue image signal can be used. An actual physical image or the attributes of an image can be the actual output. The logical process of detecting, identifying, classifying, measuring, and evaluating the relevance of physical and cultural items, their patterns, and spatial relationships is referred to as image processing. This paper presents a method for measuring ambient light from a single foggy image using Repeated Averaging Filters, which adds to greater ra

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Yabuki, Maikol Yoshie, Caio Otoni, and Maria Gabriela Caffarena Celani. "Alta tecnologia e reúso de materiais descartados: desenvolvimento de um painel decorativo para a melhoria do desempenho térmico em edificações." Gestão & Tecnologia de Projetos 15, no. 2 (2020): 6–19. http://dx.doi.org/10.11606/gtp.v15i2.155158.

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O século XXI expressa um intenso avanço tecnológico aplicado nos mais diversos equipamentos gradualmente mais acessíveis à sociedade. Ao mesmo tempo, para atender a essa demanda, os recursos naturais são consumidos exponencialmente, gerando uma enorme quantidade de resíduos com destinação nem sempre adequada. Os principais agentes ligados à tentativa de redução desse impacto ambiental negativo por meio da reutilização de materiais são as cooperativas de reciclagem, responsáveis pela seleção dos materiais descartados e reintrodução no sistema produtivo. Através da Design Science Research, a pes

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Musnaini, Musnaini. "HUBUNGAN KONSTRUK SERVICESCAPE DAN KEPUASAN KONSUMEN COFFE SHOP DI KOTA JAMBI." Competence : Journal of Management Studies 13, no. 1 (2020): 34–43. http://dx.doi.org/10.21107/kompetensi.v13i1.6821.

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Tujuan penelit ian ini untuk menjelaskan hubungan antara Servicescape yaitu Ambient Condit ion(X1), Spatial Layout/Funct ion(X2) dan Sign Symbol/Artefac (X3) dan Kepuasan Konsumen Coffee Shop di kota Jambi. Penelit ian ini menggunakan pendekatan eksplanasi. Pengumpulan data dengan kuisoner kepada 100 responden secara Judgmental Sampling. Model penelit ian diolah menggunaka regresi berganda dengan software IBM SPSS Statisctics 25. Hasil analisa membuktikanbahwa secara simultan terdapat hubungan disignifikan antara dimensi Servicescape terhadap kepuasan konsumen Coffee Shop di kota Jambi. Ternya

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Monterroza Ríos, Alvaro David, and Jorge Antonio Mejía Escobar. "Artefactos y símbolos como dispositivos causales de la cultura." trilogía Ciencia Tecnología Sociedad 5, no. 8 (2013): 39. http://dx.doi.org/10.22430/21457778.285.

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El propósito de este artículo es señalar que entre el conjunto de bienes tangibles e intangibles que constituyen a la cultura humana hay un olvido por parte de las ciencias sociales y las humanidades, de los efectos causales que produce el entorno material y sus artefactos. Se defiende una visión de cultura como arreglos causales en las que no existe diferencia entre cultura material y cultura simbólica, que da como consecuencia la aceptación del entorno artificial como nicho ecológico, en las que existe una coevolución entre el ambiente técnico y los humanos. Esto convierte a las redes de art

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Zhao, Ce, Yikang Zheng, Yibo Wang, and Liang Zhao. "Seismic ambient noise auto-correlation imaging in a CO2 storage area." Journal of Geophysics and Engineering 19, no. 5 (2022): 1134–48. http://dx.doi.org/10.1093/jge/gxac074.

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Abstract Carbon capture and storage is an effective technique for achieving ‘carbon neutrality’. Seismology plays an important role in detecting and monitoring whether CO2 has been safely sealed. However, active seismic surveys are usually incapable of continuous observations. We can extract the body wave and image the subsurface interface directly and continuously via single sensor ambient noise auto-correlation. However, because of the weak body wave in the ambient noise and the multiples in the imaging results, it is challenging to improve the imaging resolution. This study provides a refer

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Silva, Wagner Rodrigues. "Regulamentação linguística em e-mails institucionais: conflito entre professores universitários no ambiente institucional." Linguagem em (Dis)curso 12, no. 1 (2012): 15–45. http://dx.doi.org/10.1590/s1518-76322012000100002.

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Investigo reflexões metalinguísticas realizadas por docentes, ao focalizarem noções de ordem ou de regulamentação linguística, no ambiente de interação virtual, mediado por um programa de e-mail institucional, numa universidade pública. Numa abordagem sociopragmática, o ambiente virtual é caracterizado como um tecido de vozes sociais, as quais sinalizam para o posicionamento dos interactantes no espaço institucional em que estão inseridos. Os dados mostram servidores públicos se apropriando de um artefato tecnológico para interagir num novo espaço: o ambiente profissional virtual. A troca de m

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Zhang, Debao, Runqing Xie, Hongzheng Xin, Huayang Qiao, Xiaoli Duan, and Xin Rui. "The Research on interlaboratory comparison test of LED lighting products." Cambridge Science Advance 2024, no. 1 (2024): 88–106. http://dx.doi.org/10.62852/csa/2024/7.

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The article introduces the Interlaboratory Comparison (IC) test for three different types of light emitting diode (LED) lamps measurement about the key photometric, colorimetric, and electrical parameters. The article analyses the deviations of the test results between the reference values and test results from six participating laboratories. It found that the photometric and colorimetric parameters showed high deviations between the reference values and participating laboratories’ test results. The recommended participating laboratory improvement measures in the article are as follows: checki

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Randhawa, Privia A., William Morrish, John T. Lysack, William Hu, Mayank Goyal, and Michael D. Hill. "Neuroradiology Using Secure Mobile Device Review." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 43, no. 4 (2016): 529–32. http://dx.doi.org/10.1017/cjn.2016.40.

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AbstractBackground: Image review on computer-based workstations has made film-based review outdated. Despite advances in technology, the lack of portability of digital workstations creates an inherent disadvantage. As such, we sought to determine if the quality of image review on a handheld device is adequate for routine clinical use. Methods: Six CT/CTA cases and six MR/MRA cases were independently reviewed by three neuroradiologists in varying environments: high and low ambient light using a handheld device and on a traditional imaging workstation in ideal conditions. On first review (using

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