Relevant bibliographies by topics / Opachi

Academic literature on the topic 'Opachi'

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Published: 14 March 2023

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Journal articles on the topic "Opachi"

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Marchetti, Luca. "Arte e realtŕ in Danto e Adorno." PARADIGMI, no. 2 (July 2010): 43–54. http://dx.doi.org/10.3280/para2010-002004.

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Il saggio affronta il rapporto tra opera e oggetto nella filosofia dell'arte di A. Danto. In particolare: 1) le opere d'arte sono sempre a "distanza" da ciň che rappresentano (contro le avanguardie artistiche, Danto difende la "differenza" tra arte e realtŕ); 2) sono oggetti semi-opachi, ovvero trasparenti e opachi allo stesso tempo; 3) come per Adorno, sono "paradossali", perché attraverso qualcosa di reale si manifesta qualcosa che non č "reale". A partire da queste considerazioni Danto distingue arti disturbanti e arti disturbazionali: le prime operano all'interno dei "confini" dell'arte senza metterli in discussione, le seconde, invece, cercano di superare la differenza tra arte e realtŕ.
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Solito, Ilaria. "Tra cambiamenti visibili e immobilismi opachi: la comunicazione pubblica in Italia." SOCIOLOGIA DELLA COMUNICAZIONE, no. 48 (December 2014): 100–118. http://dx.doi.org/10.3280/sc2014-048010.

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Gorga, Roberto. "Distribuzione dei minerali opachi in grezzi talciferi della Val Lanterna (Alpi centrait)." Rendiconti Lincei 2, no. 3 (September 1991): 261–69. http://dx.doi.org/10.1007/bf03002953.

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Stevanato, Dario. "Imposte sui redditi: trust opachi e trasparenti/commerciali e non commerciali (pagg. 10-14 della Circolare)." N° 1 (gennaio-febbraio), no. 1 (February 2, 2023): 94–106. http://dx.doi.org/10.35948/1590-5586/2023.244.

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Sassoon, Donald. "Lino Miccichè (ed.), Schermi opachi. Il cinema italiano degli anni ’80, Marsilio, Venice, 1998, 498 pp., ISBN 88-317-6993-6 pbk, 54,000 Lire." Modern Italy 5, no. 2 (November 2000): 237–39. http://dx.doi.org/10.1017/s135329440000822x.

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Resende, Natália Carolina Alencar, and Mailce Borges Mota. "A behavioral study to investigate the processing routes of grammatical gender in Brazilian Portuguese." REVISTA DE ESTUDOS DA LINGUAGEM 25, no. 3 (June 13, 2017): 1367. http://dx.doi.org/10.17851/2237-2083.25.3.1367-1395.

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Este artigo apresenta um estudo comportamental que teve como objetivo investigar se substantivos inanimados do português do Brasil, transparentes quanto ao seu gênero gramatical (substantivos femininos terminados em -a e masculinos terminados em -o) e opacos (outras terminações) são ou não processados por mecanismos cognitivos distintos. Para tanto, uma tarefa de concordância de gênero foi executada por 19 sujeitos em duas condições: entre um artigo definido e um substantivo (condição 1) e entre um substantivo e um adjetivo (condição 2). Fatores como a frequência dos substantivos e adjetivos (alta vs. baixa) e forma fonológica (transparente vs. opaca) foram manipulados. Os resultados mostram que, em ambas as condições, a frequência é um forte preditor de respostas mais rápidas, sugerindo que tanto formas transparentes quanto formas opacas podem ser armazenadas na memória. Este padrão foi encontrado em ambas as condições. Estes resultados foram interpretados como evidência para a visão unitária de processamento da linguagem.
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Blazius, Carina Maccari, Ana Lígia Papst De Abreu, and Andrea Murillo Betioli. "Sistema de Vedação Vertical em Fachada Ventilada Opaca: estudo de caso sobre empreendimentos brasileiros." Revista Vértices 22, no. 3 (November 25, 2020): 610–25. http://dx.doi.org/10.19180/1809-2667.v22n32020p610-625.

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A fachada ventilada é um sistema construtivo que promove vantagens como agilidade na execução, alta produtividade, redução das etapas de controle de recebimento de materiais e de produção, entre outros. O Brasil não possui normas prescritivas sobre a construção de fachada ventilada opaca, contudo a NBR 15.575 pode ser aplicada para avaliação do desempenho de edifícios de uso residencial. Este artigo tem como objetivo organizar informações do sistema de construção de fachadas ventiladas opacas, contribuindo para a disseminação do uso dessa tecnologia no Brasil. O método adotado foi a pesquisa de dados em empresas brasileiras que utilizam o sistema de fachada opaca ventilada. As análises foram feitas quanto à localização, materiais utilizados, tipo de edifício (novo ou retrofit) e tipo de ocupação (residencial, comercial, institucional). Os resultados mostram que o uso do isolamento térmico é predominante em residências e prédios institucionais com fachada ventilada opaca, sendo que a cerâmica é o material mais utilizado no Brasil, apesar da variedade de materiais de revestimento externo. A pesquisa mostra que 78% dos edifícios com fachadas ventiladas opacas são de uso não residencial, portanto não há normas para sua utilização. Por fim, conclui-se que são necessários mais trabalhos acadêmicos sobre fachadas ventiladas opacas, ajudando, dessa forma, a consolidar normas prescritivas específicas no Brasil.
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Calero, Andrés, and Esther Calero-Pérez. "Opacidad ortográfica y aprendizaje de la comprensión lectora en español." Ocnos. Revista de estudios sobre lectura 20, no. 2 (June 23, 2021): 33–42. http://dx.doi.org/10.18239/ocnos_2021.20.2.2274.

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Un modelo de instrucción basado en la secuencia didáctica “aprender a leer” y “leer para aprender” importado a nuestras escuelas desde un idioma opaco como el inglés, ha lastrado el desarrollo lector de muchos estudiantes de Educación Primaria. Con base en estudios translingüísticos que indican que el nivel de transparencia y complejidad silábica tiene un impacto no solo en cómo se aprende a leer y escribir en los distintos sistemas alfabéticos de escritura, sino también en los modelos de instrucción en comprensión lectora, este trabajo de revisión plantea: primero, que aprender a leer en lenguas opacas como el inglés o el francés es más arduo que hacerlo en lenguas transparentes como el finés o el español; y segundo, que el alumnado tarda más en dominar la lectoescritura de una lengua opaca que la de otra transparente. Consecuentemente, una perspectiva de instrucción en lectoescritura en nuestra lengua debería ir más allá de la mejora de habilidades de decodificación, fluidez lectora y comprensión literal, para promover que los lectores jóvenes aprendan a leer y lean para aprender simultáneamente, mejorando su vocabulario, sus esquemas de conocimiento, el reconocimiento de las distintas estructuras textuales, y sus habilidades cognitivas y metacognitivas.
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Kapoor, Kanta, and O. P. Goyal. "Web‐based OPACs in Indian academic libraries: a functional comparison." Program 41, no. 3 (July 31, 2007): 291–309. http://dx.doi.org/10.1108/00330330710774165.

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PurposeThe paper seeks to provide a comparative analysis of the functionality of five web‐based OPACs available in Indian academic libraries.Design/methodology/approachSame‐topic searches were carried out by three researchers on the web‐based OPACs of Libsys, VTLS's iPortal, NewGenLib, Troodon, and Alice for Windows, implemented in five academic libraries in India. Their functionality was compared using criteria selected from the literature on OPAC searching.FindingsThe web‐based OPACs investigated offered a range of facilities for searching by author, title, control number and by keywords. Federated searching across several e‐collections was limited.Originality/valueThis paper should be a useful source of information to librarians who are planning to introduce web‐based OPACs and also for software vendors who wish to improve the functionality of their products.
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Jo, Jungmin, Ji-Yi Lee, Kyoung-Soon Jang, Atsushi Matsuki, Amgalan Natsagdorj, and Yun-Gyong Ahn. "Development of Quantitative Chemical Ionization Using Gas Chromatography/Mass Spectrometry and Gas Chromatography/Tandem Mass Spectrometry for Ambient Nitro- and Oxy-PAHs and Its Applications." Molecules 28, no. 2 (January 12, 2023): 775. http://dx.doi.org/10.3390/molecules28020775.

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The concentration of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere has been continually monitored since their toxicity became known, whereas nitro-PAHs (NPAHs) and oxy-PAHs (OPAHs), which are derivatives of PAHs by primary emissions or secondary formations in the atmosphere, have gained attention more recently. In this study, a method for the quantification of 18 NPAH and OPAH congeners in the atmosphere based on combined applications of gas chromatography coupled with chemical ionization mass spectrometry is presented. A high sensitivity and selectivity for the quantification of individual NPAH and OPAH congeners without sample preparations from the extract of aerosol samples were achieved using negative chemical ionization (NCI/MS) or positive chemical ionization tandem mass spectrometry (PCI-MS/MS). This analytical method was validated and applied to the aerosol samples collected from three regions in Northeast Asia—namely, Noto, Seoul, and Ulaanbaatar—from 15 December 2020 to 17 January 2021. The ranges of the method detection limits (MDLs) of the NPAHs and OPAHs for the analytical method were from 0.272 to 3.494 pg/m3 and 0.977 to 13.345 pg/m3, respectively. Among the three regions, Ulaanbaatar had the highest total mean concentration of NPAHs and OPAHs at 313.803 ± 176.349 ng/m3. The contribution of individual NPAHs and OPAHs in the total concentration differed according to the regional emission characteristics. As a result of the aerosol samples when the developed method was applied, the concentrations of NPAHs and OPAHs were quantified in the ranges of 0.016~3.659 ng/m3 and 0.002~201.704 ng/m3, respectively. It was concluded that the method could be utilized for the quantification of NPAHs and OPAHs over a wide concentration range.
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Dissertations / Theses on the topic "Opachi"

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VEGLIO', AMBRA. "Valutazione sperimentale e analitica di involucri opachi verticali: ottimizzazione in clima temperato caldo." Doctoral thesis, Università Politecnica delle Marche, 2013. http://hdl.handle.net/11566/242726.

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La presente ricerca ha l’obiettivo di valutare, sperimentalmente e analiticamente, le prestazioni energetiche di vari tipi di involucro opaco verticale, in un clima temperato caldo. L’obiettivo dello studio effettuato sull’involucro tradizionale è la verifica del comportamento in regime dinamico di 3 diverse strategie costruttive (muratura piena, parete a cassetta e cassetta isolata). Per i vari casi, è stato individuato l’intervento di retrofit ottimale dal punto di vista di comfort, consumi energetici e impatti ambientali. A tale fine lo studio ha previsto il confronto sperimentale contemporaneo di edifici, caratteristici del patrimonio edilizio esistente (1940-1980). Sono state inoltre effettuate analisi parametriche in regime dinamico per verificare l’impatto di diverse soluzioni di coibentazione termica. I risultati hanno dimostrato come i 3 involucri presentino un comportamento molto diverso. L’inserimento di elevati spessori di coibente termico determina, a volte, problemi di surriscaldamento. L’introduzione di un cappotto ventilato è risultata essere la soluzione migliore. L’obiettivo dello studio effettuato sull’involucro ventilato è di valutare le effettive prestazioni termiche di pareti ventilate, con una completa analisi termo-fluido dinamica. A tale fine lo studio ha previsto il confronto sperimentale contemporaneo di pareti ventilate con diverso rivestimento esterno (tavella in laterizio e zinco-titanio), diversa altezza del condotto di ventilazione (4, 6, 8 e 12 m) e diversa esposizione (est, sud e ovest). Sono state inoltre effettuate analisi parametriche in regime fluidodinamico. I risultati hanno dimostrato come l’altezza del condotto di ventilazione determini un aumento dei valori di velocità e temperatura dell’aria nel condotto. Anche i valori di portata d’aria subiscono un sostanziale incremento in corrispondenza dell’aumento dell’altezza del condotto. Entrambe le pareti ventilate, con diverso rivestimento esterno, presentano un buon comportamento pur con attivazione dell’effetto camino in orari diversi, di giorno in un caso e di notte nell’altro.
The current research is aimed at identifying, experimentally and analytically, the energy performance of several vertical opaque envelopes, in warm temperate climates. The aim of the traditional envelope research is to verify the dynamic performance of 3 different wall constructions (masonry wall, cavity wall and insulated cavity wall). In each case, the optimal retrofit solution in terms of comfort, energy consumption and environmental impact is identified. To that end, contemporary experimental comparisons were made between buildings which are characteristic of the existing building heritage (1940-1980). Dynamic parametric analyses were carried out in order to verify the impact of different retrofit solutions. The results show that the behaviour of the 3 envelopes differs greatly. The use of considerable thicknesses of thermal insulation sometime causes problems of overheating. The introduction of an external ventilated coating was found to be the optimal solution. The aim of the ventilated envelope research is to assess the effective thermal performance of the ventilated facades with a complete thermo-fluid dynamic analysis. To that end, contemporary experimental comparisons were made between ventilated facades with different external cladding (clay cladding and zinc-titanium), various heights of the ventilation channel (4, 6, 8, and 12 m) and different exposure (east, south and west). Fluid-dynamic parametric analyses were also carried out. The results show that variations in the height of ventilation channel cause an increase in the velocity and temperature values in the channel. The air flow rate also increases considerably when the height of the ventilation channel increases. Both the ventilated facades, with different external cladding, perform well even if there is a chimney effect in different times, during the daytime in one case and during the night in the other.
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ARIOLFO, ILARIA. "water in glass: innovazione di involucro." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2574159.

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Il tema centrale è l’innovazione di involucro, con riferimento particolare alle tecnologie attive volte al risparmio energetico e - più nello specifico - applicate all’involucro per il controllo microclimatico indoor, in termini anche di qualità architettonica. In particolare, si studia l’applicazione in architettura di un “nuovo” materiale, l’acqua, indagando l’innovazione di involucro trasparente e non solo. Partendo da una riflessione che individua l’elemento di chiusura dell’edificio come frontiera di ricerca applicata nella logica di un atteggiamento energicamente consapevole, si è affrontata una sperimentazione relativa ad un componente tecnologico di involucro (costituito da un serramento nel quale l’intercapedine dei vetri “ospita” l’acqua) e si confronta con alcune declinazioni di significato relative al concetto di innovazione tecnologica in architettura. La sperimentazione è il motore della tesi e riguarda un sistema di chiusura trasparente in cui l’acqua è un elemento tecnico-prestazionale che si intende proporre anche nelle sue ricadute formali. L’attività sperimentale si è concretizzata attraverso il rapporto con l’operatività di alcune imprese del settore. E’ stata particolarmente significativa la collaborazione con una azienda locale specializzata nella progettazione e costruzione di facciate continue, interessata ad inserire nella sua produzione un nuovo sistema di involucro edilizio e disposta ad avviare un percorso sperimentale di costruzione di un prototipo del componente tecnologico denominato: Water in Glass. La sperimentazione ha inizialmente tenuto conto dei risultati ottenuti dalle ricerche di uno spin-off spagnolo (Intelliglass, Madrid - partner con il quale era già stata avviata una collaborazione), nell’ipotesi di trasferire sul territorio italiano le innovazioni tecnologiche messe a punto nel laboratorio madrileno. L’ottica è stata quella non di un meccanico adattamento ad un contesto differente – sia geograficamente che culturalmente -, quanto di un affinamento e implementazione di quanto prodotto dallo spin-off. Il percorso di ricerca ha riguardato quindi le potenzialità di adattamento al contesto economico, climatico, produttivo e culturale italiano ed è stato portato avanti in un team multidisciplinare.
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Berggren, Mirja. "OPAC på Internet : möjligheter för sökning på skönlitteratur. En jämförelse mellan en bokhandel på Internet och fem OPACs." Thesis, Högskolan i Borås, Institutionen Biblioteks- och informationsvetenskap / Bibliotekshögskolan, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20741.

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The aim of this master thesis is to investigate how the OPACs Online Public Access Catalogue used by public libraries have adapted the features and possibilities offered by online catalogues, for the purpose of searching for fiction. This is done by comparing five OPACs to Amazon.com, an online bookstore. The questions investigated are: Have the OPACs developed from the principles of the card catalogue and adapted to the features and possibilities offered by online catalogues, when searching for fiction? Can the library catalogue provide the same features as Amazon.com, when searching for fiction? How do the OPACs use the resources that online catalogues provide when searching for fiction, compared with Amazon.com? The thesis is based on two qualitative studies. The first study presents five OPACs from different library systems and examines which features they have in common with Amazon.com. The second study examines how five public libraries use the potential features of their OPACs. The OPACs have started to develop features and possibilities that online catalogues provide but they have not completely abandoned the principles of the card catalogues. Most OPACs still only allow keyword searches and do not support browsing through genres and subjects. They do not offer a designated area for fictional search only. So far the libraries have not developed the OPACs potential to include additional information such as covers and reviews. The users have some possibilities to interact with the OPACs to make them more useful for their personal needs. Nr 63 Maria Broman: Ungdomar och nättidningsläsning En kvalitativ studie av nio gymnasieungdomars förhållande till dagstidningar på Internet Adolescents and Net Newspaper Reading A Qualitative Study of Nine High School Students' Relations to Newspapers on the Internet This Master Thesis deals with nine high school students' relations to, and reading of, newspapers on the Internet. In the context of the Internet and net newspapers, adolescents represent a group that is particularly interesting to study. For instance, they have a positive attitude towards Net newspapers and they are the first generation to grow up with the Internet and thereby associated technology. Moreover, mass media is an important part of young peoples' daily lives. A qualitative approach was used, resulting in interviews with four girls and five boys. The study reveals that the adolescents visit a newspaper site primarily to read the news and not to utilise the interactive services available. Highly valued aspects of Net newspapers are that they are free of charge and easily accessible from home. Nevertheless, the informants almost exclusively read Aftonbladet, the singularly most popular alternative on the Net. Furthermore, it was found that Internet newspaper reading has a natural place in the adolescents' lives for the time being, a habit connected to other activities such as surfing the Net and practising sports and music. However, traditional print newspapers remain the basis for newspaper reading, as the Internet is still seen as a complement. No clear evidence of continued long-term Net newspaper reading emerged, and the development will likely depend on the adolescents' personal future situations as well as the technological progress in general.
Uppsatsnivå: D
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ABBUD, JEAN DA SILVA. "BIOCAPTATION OF HG (II) BY BACTERIUM RHODOCCOCUS OPACUS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2010. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=16964@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
Os efluentes líquidos contaminados com metais pesados é uma ameaça ambiental, os íons metálicos tóxicos encontram-se dissolvidos, atingindo eventualmente o topo da cadeia alimentar e assim, tornando-se um fator de risco para a saúde humana e ambiente. Diversos métodos de tratamento de efluentes como precipitação química, coagulação, floculação, flotação, troca iônica e filtração são empregados para remoção dos metais pesados. Entretanto, estes possuem algumas desvantagens quando empregados para tratamento de grandes volumes de efluentes líquidos com baixas concentrações de metais. Neste trabalho foi avaliada a cepa bacteriana Rhodococcus opacus como um potencial biossorvente para a remoção de mercúrio de soluções aquosas através de biossorção. O valor de pH adequado para a biossorção foi em torno de 5 para o metal. Os dados correspondentes à capacidade de captação do Rhodococcus opacus em função da concentração do mercúrio foi bem ajustada ao modelo de Freundlich. A capacidade de captação máxima obtida foi de 37,9 mg.g-1 para o mercúrio, equivalente a uma remoção de 73,42 %. A cinética de biossorção para o mercúrio foi modelada pela equação de pseudo-segunda ordem. Foram avaliadas também as propriedades superficiais dos microorganismos antes e após a interação dos metais para poder determinar os possíveis mecanismos implicados na biossorção mediante medições de espectroscopia de infravermelho. Os resultados apresentados mostram que o Rhodococcus opacus apresenta características adequadas no que tange a flotação biossortiva para remoção de metais.
Heavy metals presence in wastewaters is a common environmental threat, since these toxic metal ions are dissolved, eventually reaching the top of the food chain and thus become a risk factor to human health and the environment. Mercury is considered a pollutant of high risk been regulated by USEPA (United States Environmental Protection Agency). The concern regarding pollution by mercury emerges of the problems to health caused for exposition to methyl mercury found in the aquatic water and foods in normal conditions. Several methods of effluent treatment like chemical precipitation, coagulation, flocculation, flotation, ion exchange, filtration are used to remove heavy metals. These methods have some drawbacks when used for treating large volumes of wastewater with low concentration of the metal. In this study we evaluated the bacterial strain Rhodococcus opacus as a potential biosorbent for mercury removal from aqueous solutions through biosorption. The pH value suitable for the biosorption of the metal was around 5. The data corresponding to the uptake capacity of Rhodococcus opacus depending on the concentration of mercury was well adjusted to the Freundlich model. The maximum uptake capacity was about: 37.9 mg.g-1 for mercury equivalent to a removal of 73.42%. The kinetics of mercury biosorption was representated by a equation of pseudo-second order. We also evaluated the surface characteristics of the microorganism before and after the interaction of metals in order to determine the possible mechanisms involved in biosorption by measurements of infrared spectroscopy. The results demonstrated that Rhodococcus opacus shows good performance as biosorbent for bioaccumulation of Hg (II).
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Foster, Alexander. "The heterogeneity of amine oxidase with Rhodoccus opacus." Thesis, Heriot-Watt University, 2013. http://hdl.handle.net/10399/2703.

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Four native amine oxidases have been identified from Rhodococcus opacus to reveal phenotypic plasticity and catalytic activity with respect to structurally diverse natural and synthetic amines. Altering the amine growth substrate enabled tailored and targeted oxidase upregulation, facilitating catalytic differentiation and isolation. Each enzyme was purified over 80 fold by chromatography, allowing subsequent characterisation. Two oxidases possessed a copper dependent redox co-factor with broad specificity towards monoamines. Michaelis constants (KM) ranged from 0.1 to 0.9 mM for common C1–C5 aliphatic monoamines and <0.2 mM for a range of aromatic amines. The remaining two oxidases by contrast were highly specific for aliphatic diamines, with a Michaelis constants (KM) = 60 μM for putrescine by a third copper oxidase and a (KM) = 190 μM by a flavin dependent oxidase. MALDI-TOF and genomic analysis has indicated metabolic gene clusters, multiple gene activation, and complex biodegradation pathways. With a consideration of the diamine acting oxidase, a putrescine degradation pathway is confirmed that utilises oxidases in tandem with a 4-aminobutyraldehyde dehydrogenase. The taxonomic distribution of this pathway is further examined utilising phylogenetic analysis. Oxidase regulation and integration into the nitrogen cycle is then considered, with implications in bioremediation and biocatalysis discussed.
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Fuentes, Carrasco Felipe Cristian. "Simulación Hidrogeológica de la Explotación del Acuífero Freático Ubicado en la Formación Opache, II Región, Norte de Chile." Tesis, Universidad de Chile, 2009. http://www.repositorio.uchile.cl/handle/2250/103591.

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La subcuenca de Calama se encuentra ubicada en la II Región de Chile, Antofagasta, específicamente en la unidad morfoestructural correspondiente a la precordillera del macizo andino. En la zona de estudio se encuentran los ríos Loa y San Salvador y las vegas de Calama, los cuales están en una clara interacción con el acuífero freático emplazado en la Formación Opache, (May, et al 2005). Además existe la vertiente Ojos de Opache que corresponde a la naciente del río San Salvador mediante la recuperación de dicho acuífero. El trabajo realizado se orientó a determinar los efectos que se pueden producir en el acuífero freático al explotar un caudal de 30 lt/s en la zona de Agua Pura y Las Cascadas en el río Loa, ubicada en las coordenadas UTM 502631 E y 7511261 N al suroeste de Calama. En consecuencia a la temática planteada, el objetivo general que persiguió esta investigación fue predecir el comportamiento del acuífero freático, ante una eventual explotación del mismo. De acuerdo a los antecedentes disponibles (geología, estratigrafía, hidrología e hidrogeología, (principalmente extraída de DGA, 2003 y CPH, 2003)), se generó una caracterización hidrogeológica de las formaciones geológicas existentes en la zona. Se utilizó como base para este estudio un modelo realizado en el software Visual MODFLOW Versión.4.0 por la DGA el año 2003, el cual fue modificado para modelar el flujo subterráneo y por lo tanto conocer el comportamiento del acuífero freático sujeto a una explotación. Los límites del modelo de simulación hidrogeológica fueron modificados, con el fin de incorporar caudales subterráneos que en el modelo original no se definen en detalle y que ingresan al sistema hidrogeológico desde el Este. Para evaluar el impacto en el acuífero freático, se modeló un primer escenario con el régimen actual de explotación, y un segundo escenario con la explotación de 30 lt/s desde el sector de Agua Pura y Las Cascadas. Los resultados que arrojó la extracción adicional en el acuífero freático fueron los siguientes: En el río Loa se produjo un descenso del caudal de 23.9 lt/s. Los caudales del río San Salvador y las vertientes del río Loa decayeron en 0.6 lt/s. Por último, la evapotranspiración de las vegas de Calama se redujo en 0.5 lt/s. Concluyendo, los resultados aportados por esta modelación son relevantes debido a que una extracción de esta naturaleza (un caudal de explotación relativamente moderado) impactará considerablemente las zonas mencionadas, debido a la fragilidad de los sistemas fluviales de los ríos Loa y San Salvador. La naciente de este último, la vertiente Ojos de Opache, obtiene su recarga mediante recuperaciones del acuífero freático, y dada su clara interacción con el acuífero debe ser protegida, ya que posee características hidrogeológicas y arqueológicas de interés.
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Dang, Phuong-Nga. "Determining the functions of transcriptional regulatory genes of the npd gene cluster encoding 2,4,6-trinitrophenol degradation in Rhodococcus opacus HL PM-1." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972630740.

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Ladeira, Isabel Cristina Gomes dos Santos. "Desenvolvimento de um vidrado opaco brilhante." Master's thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/2269.

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Mestrado em Engenharia de Materiais
Com o presente trabalho, pretendeu-se avaliar a viabilidade técnica e económica da produção dum vidrado cerâmico opaco brilhante, que permitisse substituir o actualmente utilizado na produção de revestimento por bicozedura rápida. A formulação do vidrado teve em vista não só uma melhoria significativa de qualidade mas também, a obtenção de um produto cerâmico para revestimento, economicamente vantajoso. O estudo foi realizado em particular para o caso de revestimentos conformados por prensagem, com ciclos de bicozedura rápidos. As características de suporte e os ciclos de cozedura, quer do suporte quer do vidrado, mantiveram-se constantes. A formulação do novo vidrado obedeceu aos seguintes requisitos: 1. Características reológicas adequadas para aplicação do vidrado por cortina; 2. Vidrado adaptado ao ciclo de bicozedura rápida com uma temperatura máxima entre 980ºC e1000ºC durante 25min a 30min; 3. Coeficiente de dilatação adaptado ao suporte cerâmico; 4. Grau de brancura com L=90, no espaço de cores Lab; 5. Superfície com boas características em termos de textura. Os resultados obtidos permitiram formular uma composição de vidrado tecnicamente aprovada em ensaio industrial, que substituiu o vidrado de referência na unidade de produção, com vantagens ao nível da qualidade final do produto e financeiras para a empresa. ABSTRACT: The scope of the present work was to evaluate the feasibility of the production of a new opaque ceramic glaze to be used in two steps fast firing tile ceramic production. With the use of the new glaze composition an improved technical quality and an economic benefit of the final product should be achieved. The glaze should fulfill the following requirements: 1. Rheological properties of the glaze suspensions appropriate for their application on tiles surface; 2. Be suitable to be used in two steps fast firing at 980ºC-1000ºC during 25 - 30 min; 3. Dilatometric compatibility with the ceramic tile; 4. Colour degree L = 90 in the (Lab) space; 5. Good superficial texture. The obtained results allowed to formulate a glaze composition industrially approved. Such composition improved the final quality of the glazed tile and the economic profits to the industry.
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Schallier, Wouter. "Subject retrieval in OPAC's: a study of three interfaces." Departament de Biblioteconomia i Documentació de la Universitat de Barcelona, 2005. http://hdl.handle.net/10150/105277.

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In this paper we study three OPAC interfaces of K.U.Leuven University Library. All three interfaces have been on-line between 2002 and 2005. The characteristics of these OPACs (search fields, labeling of the fields, search facilities, searching vs. browsing, basic vs. advanced search) are systematically examined. Special attention is given to subject search and display, and more specifically to Universal Decimal Classification (UDC) and Medical Subject Headings (MeSH). This comparison is particularly interesting because the indexing and classification tools (UDC, Library of Congress Subject Headings, MeSH) remain the same in all three OPACs. However, the way these tools are presented for subject retrieval in the respective OPACs undergoes an interesting evolution. It is demonstrated that subject search and display in library catalogs can be largely improved by investing in optimal use of existing tools. We also stress the importance of user-oriented OPAC design.
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GONCALVES, PRISCILA DOS SANTOS. "BIOSORPTION OF TOLUENE IN THE PRESENCE OF RHODOCOCCUS OPACUS STRAIN." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26296@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
Neste estudo foi avaliada a capacidade de adsorção do poluente orgânico tolueno em contato com a cepa Rhodococcus opacus. O tolueno foi selecionando por fazer parte do grupo de compostos BTEX (Benzeno, Tolueno, Etilbenzeno e Xileno), que possui elevada toxicidade, causando impacto ambiental em corpos hídricos, solo e ar, além de possuir características mutagênica e carcinogênica em humanos. A determinação e quantificação do tolueno na solução aquosa foram realizadas em um cromatógrafo a gás, acoplado ao espectrômetro de massas com amostrador automático headspace. A cepa Rhodococcus opacus foi caracterizada por análise de espectrometria no infravermelho e medição de potencial zeta, sendo a última realizada antes e após o contato com o tolueno. Os modelos de isotermas lineares de Langmuir, Freundlich e Temkin foram aplicados aos dados experimentais para descrever o processo de adsorção. Tendo o modelo de Langmuir se adaptado melhor ao processo em análise. As variáveis estudadas para otimizar as condições máximas de adsorção foram: tempo de contato, variação do pH, variação da biomassa. Este estudo mostrou que a cepa bacteriana R. opacus apresentou uma boa capacidade de biossorção, principalmente para concentrações baixas, onde removeu 95,99 porcento e 85,69 porcento das respectivas concentrações de 0,6 e 0,8 mg/L de tolueno, atendendo a resolução do CONAMA 357/2005 para águas salobras de Classe I.
In this study was evaluated the adsorption capacity of the organic pollutant toluene by the Rhodococcus opacus strain. Toluene was chosen by being part of the group of BTEX compounds (benzene, toluene, ethylbenzene and xylene), which has high toxicity, causing environmental impact on water bodies, soil and air, and also are mutagenic and carcinogenic to humans. The determination and quantification of toluene in aqueous solution were performed on a gas chromatograph, coupled with a mass spectrometer with headspace autosampler. The strain Rhodococcus opacus was characterized by infrared spectrometry analysis and zeta potential measurement, the last done before and after the sorption. The isotherm linear models of Langmuir, Freundlich and Temkin were applied to the experimental data to describe the adsorption process. Having the Langmuir model better adapted to process analysed. The variables studied to optimize the maximum adsorption conditions were: contact time, pH variation, biomass variation. This study showed that the bacterial strain R. opacus has good biosorption capabilities, particularly at low concentrations, where it removed 95.99 percent and 85.69 percent of the respective concentrations of 0.6 and 0.8 mg/L of toluene, attending the CONAMA resolution 357/2005 for salt waters of Class I.
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Books on the topic "Opachi"

1

Il diritto di essere opachi. Milano: La vita felice, 2010.

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Lino, Miccichè, and Mostra internazionale del nuovo cinema., eds. Schermi opachi: Il cinema italiano degli anni '80. Venezia: Marsilio, 1998.

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Oggetti semi-opachi: Sulla filosofia dell'arte di Arthur C. Danto. Milano: Alboversorio, 2009.

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1948-, Garaba Vladimir, ed. Opaci: File de istorie. Chișinău: [publisher not identified], 2010.

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Ahmad, Humayun. Darajar opashe. Dhaka: Gyankosh, 1992.

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Laragione, Lucía. Vidas opacas. Buenos Aires: Editorial Biblos, 2013.

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Hancock-Beaulieu, Micheline. Opacs. London: Library and Information Technology Centre, 1993.

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Wischner, Matthias. QuickStart Homo opathie: 10 Tabellen. Stuttgart: Hippokrates-Verl., 2009.

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Rossi, Guido. Capitalismo opaco. Roma: Laterza, 2005.

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Kademov, Ĭotko. Opasni zavoi: Satirichni stikhotvorenii͡a︡. [Sofia?]: Literaturen forum, 1993.

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Book chapters on the topic "Opachi"

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Khare, C. P. "Carissa opaca Stapf. Ex Haines." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_293.

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Zhigeng, Wang. "Rebuilding the Library OPAC." In Web Information Systems – WISE 2006 Workshops, 153–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11906070_15.

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Gavin, Pierre. "OPAC: Online Public Access Catalogue." In New Information Technologies and Libraries, 121–26. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5452-6_18.

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Lorenz, B. "Sacherschließung von Literatur durch Stichwortsuche im OPAC?" In Datenanalyse, Klassifikation und Informationsverarbeitung, 189–95. Heidelberg: Physica-Verlag HD, 1992. http://dx.doi.org/10.1007/978-3-642-95893-9_16.

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Chang, Hsuan-Pu, Wei-Ting Chang, and Shi-Pin Fong. "An Authoring System of Creating Graphic Map for Item Search Based on Library OPACs." In Lecture Notes in Electrical Engineering, 275–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55038-6_42.

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Chang, Hsuan-Pu, Wei-Ting Chang, and Shi-Pin Fong. "An Authoring System of Creating Graphic Map for Item Search Based on Library OPACs." In Lecture Notes in Electrical Engineering, 1417–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41674-3_197.

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Kani-Zabihi, Elahe, and Gheorghita Ghinea. "Involving Users in OPAC Interface Design: Perspective from a UK Study." In Lecture Notes in Computer Science, 374–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-73354-6_41.

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Gonçalves, Marcos André, Paul Mather, Jun Wang, Ye Zhou, Ming Luo, Ryan Richardson, Rao Shen, Liang Xu, and Edward A. Fox. "Java MARIAN: From an OPAC to a Modern Digital Library System." In String Processing and Information Retrieval, 194–209. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45735-6_18.

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Zheng, Qinghua, Jing Shao, Haifeng Dang, and Huixian Bai. "Technical Issues of Sharing and Integration of OPAC and E-Learning Resources." In Digital Libraries: International Collaboration and Cross-Fertilization, 213–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30544-6_22.

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Intarapaiboon, Peerasak. "An Improvement of Unknown-Item Search for OPAC Using Ontology and Academic Information." In IT Convergence and Security 2017, 325–32. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6451-7_38.

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Conference papers on the topic "Opachi"

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Bhatt, Chidansh, Jian Zhao, Hideto Oda, Francine Chen, and Matthew Lee. "OPaPi." In the Workshop. New York, New York, USA: ACM Press, 2019. http://dx.doi.org/10.1145/3328519.3329135.

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Liang, Lei, Yanling Wang, Bin Liu, Yongfei Li, Longhao Tang, Baojun Bai, and Ye Zhang. "Synthesis and Application of a Low Formation Damage Clay Stabilizer." In SPE Conference at Oman Petroleum & Energy Show. SPE, 2022. http://dx.doi.org/10.2118/200039-ms.

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Abstract To develop a low formation damage clay stabilizer, a kind of organic polyether amine clay stabilizer (OPACS) was synthesized. Compared with the commercial clay stabilizers, the application performance of the OPACS was investigated. OPACS was synthesized with 1, 2-propanediol, 2-(chloromethyl)oxirane and ammonia as main raw materials. The molecular structure of OPACS were characterized by FTIR and NMR, and its anti-swelling performance was tested by centrifugation. Other performance, including its temperature resistance, acid and alkali resistance, elution resistance and etc., were also researched. Different permeability cores were used to test the formation damage of OPACS, and its anti-swelling mechanism was studied by SEM. The FTIR and NMR spectra showed that the expected product structure was synthesized. When the clay stabilizer was adding with 2.0 wt.%, the anti-swelling rate of OPACS was over 90% which was better than the commercial clay stabilizers (about 80%) we bought. At the temperature range of 20 °C-120 °C and the pH range of 2-12, the anti-swelling rate of OPACS changed less than 2.5%. In the long-term efficacy test, the elution recovery rate of OPACS was higher than 92% within the concentration between 0.5 wt.%-3.0 wt.%. Natural cores with different permeability were selected for core flow experiments. The test results showed that the permeability recovery rate of cores were more than 95% treated with OPACS, which meant the formation damage value was less than 5%. From the SEM of clay treated with different clay stabilizers, we could find out the structure of clay treated with OPACS was more compact than those treated with other stabilizers we bought. These results have shown that OPACS can effectively inhibit the water absorption swelling of clay and recovery formation damage, which are helpful to the EOR and friendly to the environment.
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Eduardo Ferreira Paula, Carlos. "ESCULTURAS OPACAS: DOBRA E AUSÊNCIA." In 30º Encontro Nacional da ANPAP - (RE)EXISTÊNCIAS. ,: Even3, 2022. http://dx.doi.org/10.29327/30enanpap2021.370712.

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Seznec, André, and Karl Courtel. "OPAC (abstract)." In the 19th annual international symposium. New York, New York, USA: ACM Press, 1992. http://dx.doi.org/10.1145/139669.140408.

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de Wet, Carol B., Andrew P. de Wet, Sophia Gigliotti, Chi Xu, and Linda Godfrey. "BIOLOGICAL AND PHYSICAL EVENTS IN AN ARID PALUSTRINE SETTING, MIOCENE-PLIOCENE CARBONATES, OPACHE FM., ATACAMA DESERT, CHILE." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286231.

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Nicolae, Doina, Camelia Talianu, Cristian Radu, and Sabina Stefan. "Combining OPAC and lidar." In Remote Sensing, edited by Upendra N. Singh and Gelsomina Pappalardo. SPIE, 2007. http://dx.doi.org/10.1117/12.737900.

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Ferreira, João Antonio, Fábio Porto, Rafaelli Coutinho, and Eduardo Ogasawara. "Rumo à Otimização de Operadores sobre UDF no Spark." In XII Brazilian e-Science Workshop. Sociedade Brasileira de Computação - SBC, 2018. http://dx.doi.org/10.5753/bresci.2018.3280.

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A análise de dados em larga escala tem ganhado muita importância na comunidade científica devido ao fenômeno do Big Data. Neste contexto, funções definidas pelo usuário (UDF) são, comumente, implementadas em frameworks como Apache Spark para viabilizar a análise de dados em larga escala. No entanto, o uso de UDF traz desafios no processo de otimização de execução pois são opacas. Este trabalho propõe um método de otimização de workflows de análise de dados apoiadas em UDF sobre o Apache Spark. Tal método é baseado na API Catalyst do SparkSQL e em macros da linguagem Scala.
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Ozel, Nevzat, and Tolga Cakmak. "Users' Expectations on Restructuring OPACs through Social Network Applications." In Int'l Conference on Cyber, Physical and Social Computing (CPSCom). IEEE, 2010. http://dx.doi.org/10.1109/greencom-cpscom.2010.21.

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Xiao, Weihua, Cheng Zhuo, and Weikang Qian. "OPACT: Optimization of Approximate Compressor Tree for Approximate Multiplier." In 2022 Design, Automation & Test in Europe Conference & Exhibition (DATE). IEEE, 2022. http://dx.doi.org/10.23919/date54114.2022.9774628.

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Virág, Gabriella. "OPAC 2.0 az ELTE-n." In Hagyományok és kihívások V. Múlt és jövő : Országos Könyvtárszakmai Nap, 2016. ELTE Egyetemi Könyvtár és Levéltár, 2017. http://dx.doi.org/10.21862/hagykihiv_2016.179.

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Reports on the topic "Opachi"

1

Saraiva, Aline, Lana Fonseca, and Rafael Valadares. Categorização funcional de proteínas de um cultivo biológico da bactéria Rhodococcus opacus. ITV, August 2019. http://dx.doi.org/10.29223/prod.tec.itv.ds.2019.9.saraiva.

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Dantas, Gautam, Marcus Foston, and Tae Seok Moon. Final Report - Systems biology of Rhodococcus opacus to enable production of fuels and chemicals from lignocellulos. Office of Scientific and Technical Information (OSTI), November 2018. http://dx.doi.org/10.2172/1483375.

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Stefanoni, Pablo. Que se vayan todos, otra vez, en Perú. Fundación Carolina, December 2022. http://dx.doi.org/10.33960/ac_26.2022.

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La decisión de Pedro Castillo de cerrar el Congreso, que desde el comienzo actuó de manera obstruccionista e intentó una y otra vez destituirlo, fue un salto al vacío que acabó con la detención del mandatario. Proveniente del Perú profundo, el presidente nunca pudo armar un gobierno y se recostó en un círculo opaco de colaboradores que acabó generando un fuerte aislamiento del jefe de Estado. La nueva presidenta se enfrenta hoy con fuertes protestas que demandan la disolución del Congreso, más impopular que Castillo, y el adelanto electoral para 2023, en un nuevo capítulo de una sucesión de crisis políticas que llevó a la mayoría de los expresidentes a la prisión.
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