52 documents found, page 1 of 6
O impacto das lesões músculoesqueléticas na qualidade de sono, em trabalhadores...
Machado, Bruno; Monteiro, Joana; Vieira, Ágata; Brochado, Gabriela; Oliveira, Pedro; Ferreira, Sara; Lopes, SofiaAs lesões músculo-esqueléticas relacionadas com o trabalho afetam trabalhadores, resultando em dor, limitações funcionais e redução da produtividade podendo interferir na qualidade do sono. Caracterizar os trabalhadores de uma empresa e analisar a associação entre a sintomatologia músculoesquelética e a qualidade do sono. Estudo observacional analítico transversal com 47 trabalhadores de uma empresa de etiqueta...
As histórias que nos unem: escrita criativa e diversidade linguística
Neves, Alexandra das (coord.); Estima, Ana (coord.); Baixinha, Ana; Gomes, Ana Beatriz; Cardoso, Ana Filipa; Jacob, Ana; Karbashevska, Ana; Liberal, AnaSem resumo disponível.
Framework for warehouse receiving process design and implementation – a case study
Machado, Bruno; Pimentel, Carina Maria Oliveira; Costa, SaraThe warehouse management is one of the main tasks to be performed in an industrial company since it guarantees the efficiency of the processes linked to the warehouse, satisfying the needs of the downstream areas within the company. The receiving process is crucial to the management of a warehouse, and there is a lack of literature since few articles have this topic within their scope. The purpose of this paper...
Integration planning of freight deliveries into passenger bus networks: exact a...
Machado, Bruno; Pimentel, Carina; Sousa, Amaro deWith the increasing population living in cities, a growing number of small daily urban freight deliveries are performed, typically by private companies. Recently, more environmentally friendly urban logistics services have emerged to mitigate the negative effects of such activities. One example is the integration of freight deliveries into bus networks, traditionally dedicated to passenger transportation, to pe...
Selective denitrification of a simulated oily wastewater using Janus-structured...
Roman, Fernanda; Sanches, Flávia Kim; Silva, Adriano S.; Díaz de Tuesta, Jose Luis; Marin, Pricila; Machado, Bruno; Serp, Philippe; Silva, AdriánCarbon nanotubes (CNTs) bearing a Janus-like structure were synthesized by chemical vapor deposition considering ethylene and acetonitrile as carbon and nitrogen sources. The developed materials were applied as catalyst in the oxidation of 4-nitrophenol (4-NP) dissolved in a biphasic medium (water/2,2,4-trimeylpentane) simulating a contaminated oily wastewater. The CNT prepared using both ethylene and acetonitr...
Selective oxidation of 4-nitrophenol with H2O2 in a biphasic system by janus-li...
Sanches, Flávia Kim; Roman, Fernanda; Silva, Adriano S.; Díaz de Tuesta, Jose Luis; Silva, Adrián; Faria, Joaquim; Machado, Bruno; Serp, PhilippeThe use of petroleum-based products has increased drastically with the increase in population, resulting in the deposition of oily products in aquatic systems. It is estimated that for each ton of petroleum that undergoes refinement processes, between 0.5 and 1 ton of oily wastewaters are generated, bearing an oil concentration that may reach 40 g L-1 [1,2]. Hazardous pollutants dissolved both in oily and aqueo...
Amphiphilic carbon nanotubes for catalytic wet peroxide oxidation of 4-nitrophenol
Roman, Fernanda; Sanches, Flávia Kim; Díaz de Tuesta, Jose Luis; Marin, Pricila; Machado, Bruno; Serp, Philippe; Silva, Adrián; Faria, JoaquimCarbon nanotubes (CNTs) were synthesized via chemical vapor deposition (CVD) over an AlCoFeO4 catalyst by a sequential feed of ethylene (E, as carbon source) and acetonitrile (A, as nitrogen source). The resulting samples were noted E20 (hydrophobic), E10A10 (amphiphilic), and A20 (hydrophilic), the number referring to the feed time (minutes) of each precursor, as reported elsewhere1. These materials were teste...
Selective denitrification of lipophilic pollutants from oily wastewater by pero...
Sanches, Flávia Kim; Roman, Fernanda; Silva, Adriano S.; Díaz de Tuesta, Jose Luis; Marin, Pricila; Machado, Bruno; Serp, Philippe; Silva, AdriánCarbon nanotubes (CNTs) were tested as catalysts in the selective denitrification of 4-nitrophenol (4-NP) from oily wastewater by catalytic wet peroxide oxidation (CWPO). The CNTs were prepared by chemical vapor deposition, feeding sequentially ethylene (E) and/or acetonitrile (A) during different times until 20 min, resulting in samples E20, A20 and E10A10, the number denoting the time feeding of each precurso...
Carbon nanotubes as catalysts for wet peroxide oxidation: the effect of surface...
Martin-Martinez, Maria; Machado, Bruno; Serp, Philippe; Morales-Torres, Sergio; Silva, Adrián; Figueiredo, José; Faria, Joaquim; Gomes, HelderThree magnetic carbon nanotube (CNT) samples, named A30 (N-doped), E30 (undoped) and E10A20 (selectively N-doped), synthesized by catalytic chemical vapor deposition, were modified by introducing oxygenated surface groups (oxidation with HNO3, samples CNT-N), and by heat treatment at 800 °C for the removal of surface functionalities (samples CNT-HT). Both treatments lead to higher specific surface areas. The ac...
Janus amphiphilic carbon nanotubes as Pickering interfacial catalysts for the t...
Díaz de Tuesta, Jose Luis; Machado, Bruno; Serp, Philippe; Silva, Adrián; Faria, Joaquim; Gomes, HelderJanus-like amphiphilic carbon nanotubes (CNTs) were tested as catalysts in the oxidation of 2-nitrophenol (2- NP) with hydrogen peroxide. A biphasic oil-water medium was used to simulate oily wastewater contaminated with the lipophilic model pollutant 2-NP. The CNTs were synthesized by sequentially feeding ethylene and/or acetonitrile, used as carbon and carbon/nitrogen precursors, respectively. The results obt...