Lean manufacturing applied to a wiring production process

This project was carried out at a company in the electric mobility sector, which manufactures chargers for electric vehicles, specifically in the wiring section. The main objective of the developed work was to improve the production processes in order to enhance responsiveness to the growing demand. After analyzing the processes in the section, the objectives were outlined to enable the improvement of some practices in the production department, such as the ones related to the organization of the raw material supermarket, as well as the calculation of the wiring consumption by chargers, and the implementation of a production control system. After the improvement actions were implemented, it was possible to observe a 14,9% reduction in the changeover process of the cable cutting process; weekly wiring consumptions were estimated, and procedures were defined to generate orders of raw material and supply to the workstation, which led to the elimination of stock shortages. In addition, worker autonomy increased and production downtime was reduced.info:eu-repo/semantics/publishedVersio

Hyaluronic Acid Scaffolds for Loco-Regional Therapy in Nervous System Related Disorders

Hyaluronic acid (HA) is a Glycosaminoglycan made of disaccharide units containing N-acetyl-D-glucosamine and glucuronic acid. Its molecular mass can reach 10 MDa and its physiological properties depend on its polymeric property, polyelectrolyte feature and viscous nature. HA is a ubiquitous compound found in almost all biological tissues and fluids. So far, HA grades are produced by biotechnology processes, while in the human organism it is a major component of the extracellular matrix (ECM) in brain tissue, synovial fluid, vitreous humor, cartilage and skin. Indeed, HA is capable of forming hydrogels, polymer crosslinked networks that are very hygroscopic. Based on these considerations, we propose an overview of HA-based scaffolds developed for brain cancer treatment, central and peripheral nervous systems, discuss their relevance and identify the most successful developed systems

Environmental health : reflexions of the Brazilian Association of Post-Graduation in Collective Health - ABRASCO

O Brasil, apesar de sua extraordinária biodiversidade e do enorme potencial instalado para desenvolver ações integradas na temática do ambiente, não tem dado, do ponto de vista programático, a prioridade que o tema ambiente merece. A Associação Brasileira de Pós-Graduação em Saúde Coletiva-ABRASCO reconheceu a importância de organizar um Grupo Temático “Saúde e Ambiente” para, de maneira mais organizada, participar da luta pelo desenvolvimento sustentável, através da ação política no campo da saúde coletiva, em busca de ambientes saudáveis e da promoção da saúde. O objetivo principal deste Grupo Temático-GT foi contribuir para que o tema da saúde ambiental seja internalizado no campo da Saúde Coletiva. Método: O Grupo escolheu três eixos para discussão em uma oficina do V Congresso Brasileiro de Epidemiologia, em Curitiba, no ano de 2002. O resultado resultado do debate ocorrido foi apresentado segundo três eixos: identificação do campo teórico-conceitual em Saúde Ambiente; a política de saúde e ambiente; o caminho metodológico. A conclusão foi apresentada no formato de uma agenda do GT para o biênio 2002-2004. _______________________________________________________________________________________ ABSTRACTNot with standing its extraordinary biodiversity and enormous installed potential to develop actions integrated in to the topic of environmental health, Brazil has not given the environmental the priority the subject deserves from the programmatic, point of view. The Brazilian Association of Post-Graduation in Collective Health - ABRASCO recognized the importance of organizing a Thematic Group “Health and Environment” in order to, in a more organized fashion, participate in the struggle for sustainable development, through political action in collective health, oriented to wards health environments and health promotion. The main objective of this Thematic Group was to facilitate the subject of the environmental health to be internalized in to the field of the Collective Health. Method: The theme was debated in a workshop during the V Brazilian Congress of Epidemiology in Curitiba, in 2002. Results were presented according to three axes: 1- Identification of the theoretical-conceptual field in Environmental Health; 2- the politics of health and environment; 3- methodological route. The general conclusion was presented as an agenda for ABRASCO’s Thematic Group in Environmental Health for the biennial 2002-2004

Genetic effects on the efficiency and responsiveness to phosphorus use in popcorn as estimated by diallel analysis.

Agricultural expansion and the need for sustainable cultivation are challenges faced by researchers involved in the generation of new cultivars that can adapt to abiotic stress. Knowledge of the genetic effects of characteristics related to efficiency and responsiveness to phosphorus use must be considered when implementing methods to obtain better genotypes. The aim of this study was to characterize and select popcorn hybrids based on their efficiency and responsiveness to phosphorus use, and estimate their combining abilities and genetic effects via diallel analysis to implement improvement programs for sustainable agriculture. Eight contrasting inbred lines were used to obtain simple hybrids for diallel analysis. Twenty-eight diallelic hybrids plus the popcorn parental lines were evaluated at two different sites under two contrasting environments for soil phosphorus availability (6×6 lattice design). Grain yield, popping expansion, and volume of expanded popcorn per hectare were measured. A combined analysis of variance and a test of means were performed. The classification and utilization of the phosphorus use efficiency index, according to the grain yield performance of the hybrids under contrasting environments, was considered. Through model 2 of the Griffing?s diallel analysis method, the general and specific combining abilities were estimated, along with their environmental interactions. The best strategy to obtain genotypes that are efficient and responsive to phosphorus involves exploring popcorn hybrids using genitors that result in the accumulation of additive genes that promote popping expansion. Hybrids P7×L80, P7×L59, P7×L76, and P6×L80 presented promising results and may be evaluated as cultivation options in phosphorus-deficient soils

Loss of material in Shotcrete

O concreto projetado é muito viável para contenção de encostas, túneis, entre outros. Além de ter uma vantagem econômica, pois não utiliza o sistema de fôrmas. Isto devido ao fato de ser um concreto que é, como o próprio nome diz, projetado na superfície e com a força da projeção se adere a esta. Existem dois tipos de concreto projetado: por via seca e por via úmida, neste trabalho iremos tratar especificamente do projetado por via seca, onde as partículas sólidas encontram a água (e aditivos, se for o caso) somente no bico de projeção. O objetivo é estudar e analisar o desperdício causado pela aplicação do concreto projetado por via seca, que é um de seus pontos negativos, em uma obra de contenção, localizada no munícipio de Niterói/RJ e indicar algumas formas de reutilizá-lo na obra.The shotcrete is very feasible for containment of slopes, tunnels, among others. Besides having an economic advantage, it does not use the system of forms. This is due to the fact that it is a concrete that is, as the name says, projected on the surface and with the force of the projection sticking to the surface. There are two types of projected concrete: dry shot and wet shot, in this work we will specifically deal with the dry shot, where the solid particles find the water (and additives, if any) in the projection nozzle only. The objective is to study and analyze the waste caused by the application of shotcrete, which is one of its negative points, in a containment work, located in the municipality of Niterói/RJ and indicate some ways to reuse it in the work

Predicting Function Delay with a Machine Learning Model: Improve the Long-term Survival of Pancreatic Grafts

The impact of delayed graft function on outcomes following various solid organ transplants is well documented and addressed in the literature. Delayed graft function following various solid organ transplants is associated with both short- and long-term graft survival issues. In a retrospective cohort study including 106 patients we evaluated whether pancreas graft survival differs according to moment of insulin therapy following simultaneous pancreaskidney transplant. As a result, we aimed to identify possible risk factors and build a machine-learning-based model that predicts the likelihood of dysfunction following SPK transplant patients based on day zero data after transplant, allowing to enhance pancreatic graft survival. Feature selection by Relief algorithm yielded donor features, age, cause of death, hemoglobin, gender, ventilation days, days in ICU, length of cardiac respiratory arrest and recipient features, gender, long-term insulin, dialysis type, time of diabetes mellitus, vPRA pre-Tx, number of HLA-A mismatches and PRDI, all contributed to the models' strength.info:eu-repo/semantics/publishedVersio

Item level characterization of mm-wave indoor propagation

According to the current prospect of allocating next generation wireless systems in the underutilized millimeter frequency bands, a thorough characterization of mm-wave propagation represents a pressing necessity. In this work, an “item level” characterization of radiowave propagation at 70 GHz is carried out. The scattering properties of several, different objects commonly present in indoor environment are investigated by means of measurements carried out in an anechoic chamber. The measured data have been also exploited to tune some parameters of a 3D ray tracing model

The national inventory of geological heritage: methodological approach and results

A existência de um inventário nacional de património geológico é fundamental para se poderem implementar estratégias de geoconservação. Este trabalho apresenta a metodologia usada no desenvolvimento do mais completo inventário de geossítios, realizado até ao momento em Portugal, assim como os principais resultados obtidos. O inventário vai integrar o Sistema de Informação do Património Natural e o Cadastro Nacional dos Valores Naturais Classificados, ambos geridos pelo Instituto de Conservação da Natureza e da Biodiversidade.The existence of a national inventory of the geological heritage is of paramount importance for the implementation of a geoconservation strategy. This paper presents the methodological approach used to produce the most complete geosites inventory in Portugal, so far, and the obtained results. This inventory will be uploaded into the National Database of Natural Heritage managed by the Portuguese authority for nature conservation.Este trabalho é apoiado pela Fundação para a Ciência e a Tecnologia, através do financiamento plurianual do CGUP e do projecto de investigação “Identificação, caracterização e conservação do património geológico: uma estratégia de geoconservação para Portugal” (PTDC/CTE-GEX/64966/2006).info:eu-repo/semantics/publishedVersio

Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

This paper presents measurements of the $W^+ \rightarrow \mu^+\nu$ and $W^- \rightarrow \mu^-\nu$ cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13

Search for squarks and gluinos in events with isolated leptons, jets and missing transverse momentum at s√=8 TeV with the ATLAS detector

The results of a search for supersymmetry in final states containing at least one isolated lepton (electron or muon), jets and large missing transverse momentum with the ATLAS detector at the Large Hadron Collider are reported. The search is based on proton-proton collision data at a centre-of-mass energy s√=8 TeV collected in 2012, corresponding to an integrated luminosity of 20 fb−1. No significant excess above the Standard Model expectation is observed. Limits are set on supersymmetric particle masses for various supersymmetric models. Depending on the model, the search excludes gluino masses up to 1.32 TeV and squark masses up to 840 GeV. Limits are also set on the parameters of a minimal universal extra dimension model, excluding a compactification radius of 1/R c = 950 GeV for a cut-off scale times radius (ΛR c) of approximately 30