Listar ESID_Articles por título
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Study of 3D Metal Printed and Metal Filled Epoxy Materials for Rapid Tooling in Injection Molding
Trans Tech Publications (2023-10)Common rapid tooling techniques can be classified as indirect and direct methods. As indirect methods, casting a mixture of epoxy and metallic powder over a pattern to obtain the mold shape is currently a fast and reliable ... -
Study of resonance in wind parks
Elsevier (2015)Wind turbine harmonic current emissions are a well-known power quality problem. These emissions flow through wind park impedances, leading to grid voltage distortion. Parallel resonance may worsen the problem because it ... -
Study of Resonances in 1X25 kV AC Traction Systems With External Balancing Equipment
IEEE (2016-10)AC traction systems are 1 × 25 or 2 × 25 kV/50 Hz single-phase, nonlinear, time-varying loads that can cause power-quality problems, such as unbalanced or distorted voltages. To reduce unbalance, external balancing equipment ... -
Study of resonances in 1x25kV AC traction systems
(2015)Abstract: AC traction systems are 1x25 or 2x25 kV 50 Hz single-phase, non-linear, time-varying loads that can cause power quality problems. One of the main concerns about these systems is voltage distortion because ... -
Study of the Compatibilization Effect of Different Reactive Agents in PHB/Natural Fiber-Based Composites
MDPI (2020)Fiber–matrix interfacial adhesion is one of the key factors governing the final properties of natural fiber-based polymer composites. In this work, four extrusion reactive agents were tested as potential compatibilizers ... -
Study of the degradation of hybrid sol–gel coatings in aqueous medium
Elsevier (2014-11)The design and development of suitable multilayered functional coatings for delaying corrosion advance in metals and become controlled-release vehicles requires that the properties of the coatings are known. Coatings ... -
Study of the dispersion of nanoclays in a LDPE matrix using microscopy and in-process ultrasonic monitoring
Elsevier (2009)LDPE/montmorillonite and LDPE/kaolinite compounds were prepared by twin-screw extrusion using two screw profiles. The microstructure of the samples was determined by a combination of techniques: wide angle X-ray scattering ... -
Study of the thermal degradation of bioactive sol–gel coatings for the optimization of its curing process
Akadémiai Kiadó (2012-02)A set of materials has been prepared by sol–gel process containing different quantities of hydroxyapatite (0, 2.5 and 5% HAp w/w) using as silica precursors glycidyloxypropyltrimethoxysilane (GPTMS) and triethoxyvinyl ... -
Study on Different Graphic Representations in Architectural Heritage: Digital and Physical Modelling
IGI Global (2018-07)In recent years, cutting-edge methods have emerged to gradually replace or be used with traditional methods to carry out graphic surveys of architectural heritage; modern topographic tools such as 3D scanners and specific ... -
Studying the degradation of polyhydroxybutyrate-co-valerate during processing with clay-based nanofillers
Wiley (2009)Polyhydroxybutyrate-co-valerate (PHBV) is attracting interest as a new material for packaging applications and nanoparticulate layered silicates are being increasingly explored as a way to improve PHBV film properties. In ... -
Superparamagnetic [sic] nanofibers by electrospinning
Royal Society of Chemistry (2016)The preparation of superparamagnetic thin fibers by electrospinning dispersions of nanosized magnetite (Fe3O4, SPIO/USPIO) in a PMMA/PEO polymer solution is reported. The saturation magnetization and coercivity were not ... -
Surveying the Perception of the Environmental Advantages of an Adaptable Product
Universidad Nacional de Colombia (Sede Bogotá). Facultad de Ingeniería (2020)The aim of adaptable design is to create products that can easily adapt to different needs. The objective if this study is to analyze the effectivenes in communication to promote an adaptable baby stroller, in order to ... -
Sustainable machining of molds for tile industry by minimum quantity lubrication
Elsevier (2019-08-17)Nowadays, to reduce water pollution, soil contamination, and human health hazards, the environmental legislation is forcing manufacturing companies to avoid the use of metalworking fluids. Thus, the adoption of the dry ... -
Switching Pattern Improvement for One-Cycle Zero-Integral-Error Current Controller
IEEE (2022-01-04)The one-cycle current control is a non-linear technique based on the cycle-by-cycle calculation of the ON time of the power converter switches. Its application is not common in tracking fast-changing reference currents, ... -
Synergistic photovoltaic–thermoelectric effect in a nanostructured CdTe/Bi2Te3 heterojunction for hybrid energy harvesting
Royal Society of Chemistry (2016)Recent advances in the photovoltaic and thermoelectric material synthesis and characterization have engendered significant interest in their solar energy harvesting. However, examples of energy harvesting by the two effects ... -
Synthesis and characterization of silica-chitosan hybrid materials as antibacterial coatings for titanium implants
Elsevier (2019-01)To avoid dental implant-related infections and to promote the osseointegration of titanium implants, the application of silicon and chitosan containing coatings is proposed. Silicon is a well-known osteogenic element and ... -
Synthesis of hybrid sol-gel materials and their biological evaluation with human mesenchymal stem cells
Springer (2013-03)Surface engineering of biomaterials could promote the osseointegration of implants. In this work, two types of hybrid sol–gel materials were developed to stimulate cell attachment, proliferation and differentiation of ... -
Synthesis of nonlinear controller for wind turbines stability when providing grid support
John Wiley & Sons, Ltd. (2013)This paper presents a new nonlinear polynomial controller for wind turbines that assures stability and maximizes the energy produced while imposing a bound in the generated power derivative in normal operation (guarantees ... -
SysML4GDPSim: A SysML Profile for Modeling Geometric Deviation Propagation in Multistage Manufacturing Systems Simulation
MDPI (2024-02-24)In recent years, paradigms like production quality or zero-defect manufacturing have emerged, highlighting the need to improve quality and reduce waste in manufacturing systems. Although quality can be analyzed from various ... -
SYSML4TA: A SysML Profile for Consistent Tolerance Analysis in a Manufacturing System Case Application
MDPI (2023-05-01)Tolerance analysis is a key engineering task that is usually supported by domain-specific analysis models and tools that are generally not connected to the system functionality. The model-based system engineering (MBSE) ...