1,157 research outputs found
Saúde-nutrição do trabalhador num contexto de mudança organizacional
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.Esta tese tem como principal objetivo analisar as mudanças organizacionais ocorridas em uma empresa do ramo metal-mecânico, situada no Estado do Rio Grande do Sul, e as ações voltadas para a saúde dos seus trabalhadores. O mundo contemporâneo é movido por mudanças sociais, políticas, econômicas e tecnológicas, que têm levado as organizações a adaptarem-se para enfrentar essas mudanças. As mudanças organizacionais e técnicas do trabalho vêm acelerando as organizações e estas vêm assumindo novas configurações, não apenas em decorrência do progresso e dos avanços tecnológicos, mas, principalmente, pela intensificação da globalização nas últimas décadas, transformando, também, as inter-relações trabalho/saúde. As pessoas estarão em processo de educação permanente, e a competitividade das organizações dependerá cada vez mais das habilidades e conhecimentos dos seus trabalhadores. O trabalho tem sido identificado como um importante mediador entre as diferentes instâncias sociais e a saúde humana, em processos que podem favorecer ou prejudicar coletividades e trabalhadores individuais de quaisquer tipos de trabalho realizado, podendo ser fonte de fortalecimento ou de desgaste para a sua saúde. Os programas de proteção à saúde dos trabalhadores precisam levar em consideração não só a prevenção de acidentes e doenças profissionais, mas também a proteção, fomento e conservação da saúde no sentido amplo, permeando as questões fundamentais dos cuidados com a oferta de uma alimentação adequada. O caminho metodológico percorrido foi o da abordagem qualitativa, através do estudo de caso simples, complementado por uma abordagem quantitativa, buscando dar um tratamento global e contextual ao tema. Os resultados obtidos oferecem subsídios para um novo olhar sobre as mudanças organizacionais, apontando para a importância da saúde dos trabalhadores nas organizações
Estudo de mosquitos antropofílicos (Diptera: Culicidae) em áreas de uma futura Unidade de Conservação, Itapema, SC, Brasil
No full textTCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.Foi realizado um levantamento faunístico de mosquitos (Diptera: Culicidae) antropofílicos diurnos em duas áreas de Mata Atlântica do sul do Brasil, onde será implantada uma Unidade de Conservação no município de Itapema, SC. Foram coletados 308 exemplares de 14 espécies, sendo que Ochlerotatus fluviatilis foi relatada pela primeira vez no leste de Santa Catarina. Numa das áreas, de Floresta Ombrófila Densa ainda bem preservada, a espécie predominante foi Anopheles cruzii. Na outra área de floresta, a qual apresenta maiores impactos por decorrência de atividades humanas, a espécie mais abundante foi Ochlerotatus scapularis. Foram relatadas, no total, quatro espécies de culicídeos que são vetores de doenças para os seres humanos
Signal Integrity in Pulse-train Excited Array Antennas in Time and Space - A Full TD Analysis
No full textSignal integrity in the far-field radiation from pulse-train excited array antennas is studied via full timedomain instruments. The disturbance in the received signal is related to the fidelity factor. At any point in our analysis, the disturbance is evaluated based on a reduced, well defined set of parameters: pulse parameters and pulse repetition rate – temporal dependence, and elementary radiator location – spatial dependence. Their effect is examined by means of illustrative numerical experiments. These results are expedient for enhancing the detectability of the signals radiated by pulse-train excited array antennas, as needed in wireless digital transfer.Accepted author manuscriptEEMS - GeneralTera-Hertz Sensin
De Wijk der Toekomst, de Toekomst der Wijk
No full textAls we over dertig jaar terug kijken op de huidige wijken zal men verbaasd zijn hoe die er uit zagen. Komende jaren zullen deze wijken ingrijpend veranderen. Vanuit klimaatperspectief gaan we nieuwe eisen stellen aan mobiliteit, het opwekken van energie, biodiversiteit en ruimte voor groen en water. De opkomende circulaire economie met nieuwe bouw- en materiaaltechnologieën bieden interessante perspectieven. Ook veranderingen in de zorg en betaalbaarheid, beschikbaarheid en bereikbaarheid van woningen voor nieuwkomers is een aandachtspunt. Kortom de perfecte storm voor verandering.Teachers of Practice / AHousing Institutions & Governanc
Het portiekwoongebouw: vlagschip van de Nederlandse welvaartsstaat: Archtergrondstudie naar portiekwoongebouwen in Nederland voor het Beyond-the-Current research project
No full textBeyond the Current
Het Klimaatakkoord en de ambitie om in 2050 CO2-neutrale woningvoorraad te hebben leidde tot de organisatie Stroomversnelling, een organisatie met leden uit de hele bouwketen die met haar keurmerk nul-op-de-meter NOM-keur een methode ontwikkelde waarbij woongebouwen en woningen op een industriële wijze van de buitenkant worden ingepakt met isolatie en betere installaties. Een methode met veel voordelen maar ook met weinig respect voor de beeldkwaliteit en biodiversiteit van deze woongebouwen.
Om de kwaliteit en de bouwtechniek van woonportiekgebouwen te begrijpen is de TU Delft en de Hogeschool Utrecht gevraagd onderzoek te doen portiekwoongebouwen en de mogelijkheden die er zijn om tot een CO2-neutrale woningvoorraad te komen. Het wordt steeds duidelijker dat de energie-efficiëntie van onze woningvoorraad een van de grootste uitdagingen in verband met de bebouwde omgeving is – een uitdaging die in Nederland en in veel andere landen met beide handen is aangegrepen. Om deze uitdaging het hoofd te bieden, moet energie-efficiënte renovatie niet alleen als een technologisch maar ook als een architectonisch en maatschappelijk vraagstuk worden gezien.
In dit ‘Research through Design’-project (RTD) genaamd ‘Beyond the Current’ zijn ontwerpoplossingen ontwikkeld om de energie-efficiëntie van flatblokken van vier verdiepingen te vergroten. Deze oplossingen zijn getoetst op de voorkeuren van huurders door de huurders virtuele ontwerpmodellen in 3D voor te leggen. De resultaten stelden woningcorporaties en architecten in staat om renovatiemaatregelen te ontwikkelen die niet alleen rekening houden met het milieu en met architectonische waarden, maar ook met de voorkeuren van de huurders van deze woningen.
Dit onderzoek is uitgevoerd door onderzoekers en ontwerpers van de faculteit Bouwkunde van TU Delft (zie het overzicht met medewerkers), in samenwerking met Hogeschool Utrecht. Het team bestond uit: prof.dr.ir. V.H. Gruis, prof.ir. W. de Jonge, prof.ir. M.F. Asselbergs, dr. C.J. van Oel, ir. L.G.K. Spoormans, dr.ir. T. Konstantinou, ir. S. El Messlaki, ir. T. de Jonge, dr.ir. L.M. Oorschot
De ontwerpoplossingen en huurdersenquêtes zijn in nauwe samenwerking met de volgende architecten, woningcorporaties en brancheorganisaties ontwikkeld: De Alliantie, Mitros, Haag Wonen, Eigen Haard, Stadgenoot, Van Schagen Architecten, INBO, FARO, BNA, NRP en Huren met Energie. Het project is gefinancierd door NWO/STW in het kader van het gezamenlijke onderzoeksprogramma Research through Design
Implementation and Calibration of a Low-Cost Sensor Node for High-Resolution, Continuous and No-Manning Recording of Fruit Growth
No full textThis paper describes a low-cost sensor node prototype for in-field, non-invasive fruit growth measurement, with particular emphasis on the calibration procedures required to obtain a significant improvement in stability when environmental conditions change and, thus, optimized performance. Despite the low-cost components used, the prototype allows to continuously monitor the variations in fruit size during night/day and irrigation/chemical cycles with an effective resolution lower than one millimeter. The full-scale implemented achieves 12 cm, overcoming the need of relocating the sensor during the ripening season, as instead typical of high resolution alternative solutions
Low-cost, high-resolution and no-manning distributed sensing system for the continuous monitoring of fruit growth in precision farming
No full textAccurate, continuous and reliable data gathering and recording about crop growth and state of health, by means of a network of autonomous sensor nodes that require minimal management by the farmer will be essential in future Precision Agriculture.
In this paper, a low-cost multi-channel sensor-node architecture is proposed for the distributed monitoring of fruit growth throughout the entire ripening season. The prototype presented is equipped with five independent sensing elements that can be attached each to a sample fruit at the beginning of the season and are capable of estimating the fruit diameter from the first formation up to the harvest. The sensor-node is provided with a LoRa transceiver for wireless communication with the decision making central, is energetically autonomous thanks to a dedicated energy harvester and an accurate design of power consumption, and each measuring channel provides sub-mm 9.0-ENOB effective resolution with a full-scale range of 12 cm. The accurate calibration procedure of the sensor-node and its elements is described in the paper, which allows for the compensation of temperature dispersion, noise and non-linearities. The prototype was tested on field in real application, in the framework of the research activity for next-generation Precision Farming performed at the experimental farm of the Department of Agricultural and Food Science of the University of Bologna, Cadriano, Italy
De productie van methyleendiferenyldiisocyanaat volgens de carbonyleringsroute
No full textDocument uit de collectie Chemische ProcestechnologieDelftChemTechApplied Science
Technical and clinical feasibility of contrast-enhanced ultrasound evaluation of long bone non-infected nonunion healing
No full textPurpose: To assess the technical feasibility of contrast-enhanced ultrasound (CEUS) in the monitoring of non-infected long bone nonunion healing. Methods: Twenty-five patients (16 males; mean age: 40.4 ± 11.7) with long bone nonunion were treated using surgery and mesenchymal stem cells and platelet-rich plasma. They performed CEUS up to 15 days before, 7 days, 4 and 8 weeks after treatment. To categorize the angiogenesis around the fracture site, the microvascular blood flow from CEUS was classified into four categories, depending on the portion of the investigated area that was involved in the neovascularization process: grade 0 = 0%; grade 1 = 0–30%; grade 2 = 30–70%; grade 3 = 70–100%. Nonparametric Friedman and Wilcoxon statistics were used. Results: Before treatment, neovascularization was graded as 0 in 15/25 patients, as 1 in 10/25. Vascularity significantly increased over time (P < 0.001), namely: 1 (25th–75th percentile = 1–2) at 7 days; 2 (1–2) at 4 weeks; 3 (0–2) at 8 weeks. All patients but one showed early progressive increase in neovascularization well identified with CEUS at the fracture site. Conclusion: CEUS is a feasible method to monitor healing in patients with long bone nonunion
Technologie of mens; wie gaat de wording van onze steden bepalen?
No full textWat is de impact van technologie op gebiedsontwikkeling? Dat was de vraag van het Praktijkcongres 2016 van Stichting Kennis Gebiedsontwikkeling . Data- en communicatietechnologie ontwikkelt zich in razende vaart. De consequenties voor steden zijn nog nauwelijks te overzien, net als men bij de uitvinding van de verbrandingsmotor in 1867 nog niet kon overzien hoe dat de wording van bestaande en nieuwe steden zou gaan domineren. Keynotespreker Anthony Townsend (New York University), Peter Russell (TU Delft) en Femke Haccou (Gemeente Amsterdam) schetsten een beeld van de toekomst. Friso de Zeeuw (TU Delft) gaf een reflectie op deze toekomstbeelden. Hoe gaat de technologie de wording van onze bestaande en nieuwe steden bepalen
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