Technological Apparatus Research Articles

Virtualidades e educação

O segundo número da revista ETD – Educação Temática Digital do ano de 2020 chega à leitora e ao leitor em meio a um contexto histórico inédito. Mistura de um episódio do universo tecnológico-distópico de Black Mirror com o panorama camusiano da Orã acometida pela Peste, vemos a aparente antinomia entre distanciamento e proximidade reconfigurar-se e converter-se em novas formas de sociabilidade e interação. Ao necessário isolamento social imposto pela disseminação virulenta de uma pandemia emerge mutatis mutandis um ser humano que não apenas media suas relações sociais via aparatos tecnológicos, mas agora se realiza (em termos ontológicos) através e, em enorme medida, na dependência deles. Potencialmente libertadora e subversiva na mesma medida que repressora e submissa, a virtualidade se impõe antes como necessidade que como escolha...

Simulation method of the low-Re flows in the packed bed technological equipment

The paper shows the semiempirical method of a numerical simulation of the low-Re flows in the packed bed technological apparatus. The proposed method is based on the Navier-Stokes equations modification by the linear momentum sources equations in the packed bed zones. It is found that the simulation error of the proposed method is not more than 6.2% for low-density finite element meshes. The average value of the simulation error is about 3.0% for all shown cases. It was found that the proposed method simulation error almost independents on the mesh density. In the main, the simulation error is determined by the linear momentum sources equations approximation error.

Tecnologia e literatura: as narrativas transmediáticas

Foi o regime literário que produziu o Ocidente. No nosso tempo, todavia, o regime literário perdeu centralidade. Hoje, a cultura tem uma predominância tecnológica, sendo através deste processo de mediação que se exprime, cada vez mais, a vida contemporânea. Com efeito, os novos territórios, paisagens, atmosferas e ambientes tecnológicos levaram as comunidades humanas a circum-navegar sites, portais, blogues, videojogos, aplicações, repositórios digitais, museus virtuais, e também realidades virtuais implantadas em ambientes imersivos. Um tal processo teve como consequência a multiplicação dos conteúdos e a convergência de formatos, plataformas informáticas e linguagens. O movimento de aparelhamento tecnológico da cultura expandiu a experiência humana. Podemos falar, nestas circunstâncias, de uma galáxia de novos fluxos, ressonâncias, ritmos, cadências, sonoridades, durações, vibrações, que permitem a abertura das comunidades humanas à configuração de novas possibilidades de futuro. Entretanto, a expansão da experiência humana abriu também a possibilidade de novas narrativas sobre o humano. A essas narrativas damos-lhe o nome de narrativas transmediáticas, por se apoiarem na convergência dos média digitais. Este estudo interroga as narrativas transmediáticas, que se desdobram através de múltiplas plataformas. Procuramos saber em que medida estas narrativas constituem uma escrita criativa e literária, uma escrita que não responda apenas a necessidades de gestão e de comunicação política, nem se esgote na repetição, adaptação e propagação da mesma história.

STRUCTURIZATION AND MODELLING OF TECHNICAL DEVICES OF HAZARDOUS PRODUCTION FACILITIES

Every year, the problem of industrial safety is becoming increasingly relevant. The effective industrial safety management system (ISMS) organization becomes especially important for nuclear energy, chemical, petrochemical, oil and gas, mining, metallurgical industries, coal mines and other industries, including enterprises with hazardous production facilities (HPF). Any violation of operating modes, unaccounted technological and operational defects can lead to serious consequences and accidents, accompanied by significant material costs and technological disasters. An important place among the problems of industrial safety is the problem of trouble-free operation of technical devices (units, machines and mechanisms, technical systems and complexes, technological equipment, instruments and apparatus) of hazardous production facilities. However, existing approaches to solving this problem have limited application. The article proposes an effective solving method of the problem based on the use of graph models. The advantage of such modelling is the simplicity, clarity and ease of mathematical algorithmization of the studied production processes and technical systems.

Mortalidade materna: causas e estratégias de prevenção

Estudo de revisão Integrativa da Literatura, realizada na Biblioteca Virtual em Saúde e nas bases de dados: Literatura Latino-Americana e do Caribe em Ciências da Saúde e Medical Literature Analysis and Retrieval System Online. Objetivando-se a analisar na literatura nacional e internacional as evidências científicas acerca das causas de mortes maternas e as estratégias utilizadas para sua prevenção. Após análise dos critérios de inclusão e exclusão, obteve-se um universo de dez estudos. Evidenciando que as principais causas de mortes maternas são em sua maioria consideradas evitáveis. Visto que as estratégias contemplam a identificação de intervenções prioritárias a serem aplicadas, uso de protocolos, boa infraestrutura, equipamentos, medicamentos, número de pessoal adequado e boa gestão dos serviços, método de regulação menstrual como prevenção ao aborto clandestino. Desta forma as estratégias são reportadas por medidas simples, muitas vezes de baixo custo e que não necessitam aparato de alta tecnologia. A totalidade dos estudos que abordam estratégias para a redução da mortalidade materna, são de cunho internacional.

Seeing Blocks and Crypto Bros

How do cryptocurrencies like Bitcoin work? What is a blockchain? And, what does a typical Bitcoin holder look like? The artist collective Anxious to Make commissioned sixty cloudworkers to draw their answers to these questions. Drawings range from the mundane and stereotypical—a Bitcoin owner depicted as a bearded hipster shouting, HODL!—to the complex and eccentric—the blockchain drawn as connected nodes of random numbers, presumably meant to represent cryptographic hashes. 
 Like much technology, the inner workings of cryptocurrency remain “black boxes” of understanding to most users. As a collective, Anxious to Make remains cautious of any technological apparatus that is believed in without understanding. These series of drawings point to the absurdity and comic nature of technological beliefs and utopic, seamless crypto-fantasies. We offer a subset of the drawings here, together with an analysis of the ways artistic labor is changed by—or mirrors—the practice of outsourcing.

Mathematical Models of Conservative Objects of Control

Trend analysis and record charts different technological parameter in the heat power, chemical and oil refining industry showed, that most of them are oscillatory in nature. In order to reduce the amplitude of the oscillations, filters are used, and for the actual value of the measured quantity — their average value. Research has found, that the oscillatory-pulse nature of trends and diagrams of measured values is observed in multi-parameter technological objects of control, which have valve valve strapping on both input and output material, heat or energy flows. It is shown that valve-type regulating organs, which are used in automatic control systems, together with the technological apparatus create partial objects, which work on a conservative type. This creates new dyna­mic objects with three or more private conservative systems, which together create a complex multi-para­meter technological control object with the oscillatory-pulse nature of the measured parameters. It was found that in many cases for such complex objects of control the average value of the measured parameter, defined with the trend, can differ significantly from its actual value. This leads to the appearance of significant measurement errors, and consequently, to an incorrect assessment of the quality of manufactured pro­ducts. The task is to study the causes of the appearance of such vibrational-pulse systems, their properties, devia­tions of average readings along the trend from the actual value of the measured parameter, and also develop methods for reducing measurement errors. The paper presents mathematical and physical models of such conservative control systems, obtained on the basis of the theory of rheological transformations, as well as the results of their research. It is shown that the vibrational-pulse trends of the measurement parameters are a set of angular frequencies of private objects, the sum of which creates an oscillatory-pulse form of the signals of the measuring parameters.

Means and methods of noise protection to reduce the risk of cardiovascular disease in workers

Some manufacturing processes are accompanied by significant noise and vibration. Sources of intense noise and vibration are machines and mechanisms with unbalanced rotating masses, as well as technological installations and apparatuses in which the movement of gases and liquids occurs at high speeds and has a pulsating character. The modern development of technology, equipping enterprises with powerful and fast-moving machines and mechanisms leads to the fact that people are constantly exposed to noise of increasing intensity. Increasing noise and vibration in the workplace has a harmful effect on the human body. As a result of prolonged exposure to noise, the normal activity of the cardiovascular and nervous systems, digestive and hematopoietic organs is disturbed, and professional hearing loss develops, the progression of which can lead to complete hearing loss.Among industrial hazards, noise and vibration occupy one of the leading places among production hazards. The harmful effects of increased noise levels on the human body are well khown, therefore, the relevance of this problem is obvious.

The effect of noise on the human body, in particular, on cardiovascular diseases

Some manufacturing processes are accompanied by significant noise and vibration. Sources of intense noise and vibration are machines and mechanisms with unbalanced rotating masses, as well as technological installations and apparatuses in which the movement of gases and liquids occurs at high speeds and has a pulsating character. The modern development of technology, equipping enterprises with powerful and fast-moving machines and mechanisms leads to the fact that people are constantly exposed to noise of increasing intensity. Increasing noise and vibration in the workplace has a harmful effect on the human body. As a result of prolonged exposure to noise, the normal activity of the cardiovascular and nervous systems, digestive and hematopoietic organs is disturbed, and professional hearing loss develops, the progression of which can lead to complete hearing loss. Among industrial hazards, noise and vibration occupy one of the leading places among production hazards. The harmful effects of increased noise levels on the human body are well khown, therefore, the relevance of this problem is obvious.

Vibration safety to reduce the risk of cardiovascular disease in workers

Some manufacturing processes are accompanied by significant noise and vibration. Sources of intense noise and vibration are machines and mechanisms with unbalanced rotating masses, as well as technological installations and apparatuses in which the movement of gases and liquids occurs at high speeds and has a pulsating character. The modern development of technology, equipping enterprises with powerful and fast- moving machines and mechanisms leads to the fact that people are constantly exposed to noise of increasing intensity. Increasing noise and vibration in the workplace has a harmful effect on the human body. As a result of prolonged exposure to noise, the normal activity of the cardiovascular and nervous systems, digestive and hematopoietic organs is disturbed, and professional hearing loss develops, the progression of which can lead to complete hearing loss. Among industrial hazards, noise and vibration occupy one of the leading places among production hazards. The harmful effects of increased noise levels on the human body are well khown, therefore, the relevance of this problem is obvious.

Education college institute of technology apparatus training students in teaching activities

Education college institute of technology apparatus training students in teaching activities

VIBRATION FREQUENCY DENSITY CONTROL METHOD IN VIBRATION CONDITIONS

The use of existing vibration frequency measuring instruments for monitoring technological parameters inside apparatus and equipment is limited due to the presence of vibrations and industrial noise. The lack of data on the use of part of the technological apparatus as flow resonators through the unexplored basic analytical equations for determining the amplitude-frequency characteristics of such resonators determined the direction of these studies. The article is devoted to studies aimed at establishing the relationship between the vibrational field of the resonator, which is used as part of the technological apparatus with a controlled environment, and its reaction in the form of a change in the frequency or amplitude of the resonator’s own vibrations, which carries information about the properties of the substance in the apparatus. The experimental setup diagram, experimental methodology, and data on determining the oscillation frequency of the resonator under vibration conditions for metallic (corrosion-resistant steel) and non-metallic (organic glass) resonators are presented. The curves obtained from the experimental values were approximated using linear and hyperbolic approximations. It was found that the use of hyperbolic approximation reduces the average approximation error by more than six times. It was found that the error of the hyperbolic approximation error does not exceed 0.022% for a metal resonator and 0.05% for an organic glass resonator. The conducted experimental studies confirm the presence of a determinate coupling of the measured frequency characteristics of the resonator with the density, which was measured inside the equipment. The obtained data was used to develop the scientific and methodological foundations of the vibrational frequency control method in conditions of vibration using a part of the device as a resonator of the vibrational frequency sensor.

Olhar, tecnologia e arte

O ser humano passa por um processo de ciborguização, que foi intensificado com a tecnologia digital. Várias partes do corpo têm possibilidadesde serem substituídas por órgãos artificiais que se aproximam cada vez mais dos originais. Ao mesmo tempo, esses conhecimentos vão ampliando as extensões tecnológicas do nosso corpo, tornando os androides cada vez mais próximos ao humano. Nesse contexto, a visão como um dos principais sistemas sensoriais para a nossa sobrevivência no ambiente, vem ganhando potencial para ser alterada com aparatos tecnológicos, possibilitando deficientes visuais a terem parte da visualidade recuperada, e ampliando o potencial visual, num futuro próximo. O universo do olhar humano é apresentado aqui, no diálogo entre arte, ciência e tecnologia.

Entre o ativismo on e off-line: o Busão da Comunidade conquista o espaço urbano

Resumo O recurso ao ativismo digital, por parte de movimentos que discutem mobilidade na periferia das cidades, parece ilustrar um dos papéis desempenhados pelas inovações tecnológicas na reconfiguração urbana. Este artigo propõe a interpretação do movimento em torno da implantação de uma linha de transporte suplementar no Aglomerado da Serra, em Belo Horizonte – o “Busão da Comunidade” – à luz da análise da tecnologia em suas relações com questões de poder e ação coletiva. Utilizou, como suporte, entrevistas com atores-chave, análise das postagens nas mídias sociais, do uso do aplicativo whatsapp e do correio eletrônico. Conclui-se que os recursos digitais foram decisivos principalmente para determinadas dimensões de mobilização e comunicação, mais do que para uma ação conectiva, definida pelo aparato tecnológico.

Between real and virtual, map and terrain: ScanLab Projects, Post-lenticular Landscapes

London-based company ScanLab Projects is a multi-disciplinary commercial collaboration between architect, artist, coders and designers who utilize technologies surrounding 3D laser scanning in their practice. Inherent in the manner their projects are pitched is through reference to the photographic as technological process. Central to their engagement with the light detection and ranging (LiDAR) scanning apparatus is a consideration of the relationality between virtual or digital object and what could be determined as extrinsic or ‘real’ terrain. In Post-lenticular Landscapes, 2017, ScanLab created a series of LiDAR scans of Yosemite National Park. The landscape, presented as a stereoscopic film work where the spectator flies through an ephemeral black and white point cloud, is contextualized relationally to a certain photo-historical context and lineage: As Yosemite is synonymous with the advent of photographic process through the work of Muybridge, Watkins, Woods and Adams, the work revisits an archetypal image of the American sublime. In this text, I unpack ScanLab’s usage and conceptualization of LiDAR scans referentially to an understanding of the photographic. By considering how ScanLab frames our understanding of the project through the technological apparatus, the text attempts to problematize the scans by reading them through a particular art historic heritage. In this context, I posit alternate ways of reading the work, specifically through reference to the image of Yosemite that has proliferated across the desktops of Apple computers since 2014. Furthermore, through a reading of metonymy in the writing of Eelco Runia, the eerie as understood by Mark Fisher and in relation to Lev Manovich’s description of photorealism, I propose that the future of the mediation and understandings of machinic vision are to be thought with a reconsidered notion of the photographic.

Por uma outra escola: provocações à didática e ao conceito de inovação pedagógica

Identifying elements pointing basic education and innovative pedagogical perspectives from undergraduates and teachers perspective is the aim of this study, resulting in teaching staff reflections by UFF Center for Teaching and Training of Teachers and qualitative evaluations carried out with students of Didactic Discipline. It promoted a (re)approximation with the school, generating individual records and interviews with basic school teachers, considered innovative by the graduates. In contrast to linking the concept of pedagogical innovation to technological apparatuses insertion, the fellow students expressed preoccupations with a more fair society construction, based on aspects such as teaching autonomy, dialogue, commitment and creativity. The political and social school recognition is the main locus of human formation and community, reflecting urgency on other scholar thinking and conducting ways are perspectives of the present discussion

Zubin Kanga: Silver Screens / Steel Strings, London, City, University of London, 26 March 2019

Zubin Kanga has about as wide a range of performance experience as one can get playing recently written art music – his bio mentions collaborations with contemporary warhorses like Thomas Adès, George Benjamin, and Steve Reich – but as a solo performer he has cultivated a distinctive and specialised practice that maps onto the wider action of international New Music in increasingly fascinating ways. For the past few years, his solo tours have showcased an expanded practice which binds the performer to one or another technological apparatus that centrally determines the form and execution of the piece, raising questions of autonomy, authorship and identity. These concerns are reflected in the titles of the tours: ‘Dark Twin’, ‘Cyborg Pianist’ and, currently, ‘Piano Ex Machina’.

Revising the smart home as assemblage

Although aspirations for the ‘smart home’ have existed since the 1950s, the recent understanding of smart technological interventions as ecosystems of policy, material, people, ICT and data that drive social and spatial change, suggests we need to revise the smart home. From increased leisure time to increased energy efficiency – the smart home has promised, and frequently failed to deliver its utopian promises. First, this paper argues the smart home can be conceptualized as an assemblage of social, economic, political and technological apparatuses. Thinking about the smart home as assemblage allows us to see the network of relationships which constitute it, the work they do in the world, and the subsequent possibilities of becoming. Second, the paper offers innovative methodologies for researching the smart home that draws on the agentive capacities of ‘smart’ technologies. Such unpacking is critical to understand the work and possibilities of the smart home. The methodologies are productive for thinking about the future of housing research.

High-Performance Insulation for Piping and other Technological Apparatuses

High-Performance Insulation for Piping and other Technological Apparatuses

Disfarça-me que te devoro: youtubers mirins, consumo e semiformação da criança

This article aims to problematize the role and impact of the cultural industry in the training of children, taking the children youtubers as the focus of analysis. In order to do so, it seeks to understand how the cultural industry is configured and operated, as well as to recognize the characteristics of the digital culture, the forms of communication instituted by the youtubers that stimulate consumption and provide reflections on how it impacts on the (semi) formation of children. It is a theoretical reflection, based on authors based on critical theory and discussing childhood and it’s (re) configuration in contemporary times. We have come to the conclusion that the new ways of living childhood in the present day have been guided by the technological apparatuses, configuring fertile ground for advertising publicity disguised in the voice of children who speak to other children, thus shaping their ways of being, thinking and consuming.