Browsing by Author "Farré Lladós, Josep"
Now showing items 1-20 of 26
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3D skin microfluidic phantom for in vitro wearable testing
(2020)
Conference lecture
Restricted access - publisher's policyA standardized and cost-effective perspiration phantom for in vitro testing is needed to replace the variable and resource consuming human tests at research level. Here, an alternative to the existing devices, which mainly ... -
A passive portable microfluidic blood-plasma separator for simultaneous determination of direct and indirect ABO/Rh blood typing
(2019-09-03)
Article
Open AccessThe blood typing test is mandatory in any transfusion, organ transplant, and pregnancy situation. There is a lack of point-of-care (POC) blood typing that could perform both direct and indirect methods using a single droplet ... -
Advancements in microfabricated gas sensors and microanalytical tools for the sensitive and selective detection of odors
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-09-24)
Article
Open AccessIn recent years, advancements in micromachining techniques and nanomaterials have enabled the fabrication of highly sensitive devices for the detection of odorous species. Recent efforts done in the miniaturization of gas ... -
Contaminant particle motion in lubricating grease flow: a computational fluid dynamics approach
(2018)
Article
Open AccessIn this paper, numerical simulations of particle migration in lubricating grease flow are presented. The rheology of three lithium greases with NLGI (National Lubricating Grease Institute) grades 00, 1 and 2 respectively ... -
Cost-effective microfabrication of sub-micron-depth channels by femto-laser anti-stiction texturing
(2020-02-26)
Article
Open AccessMicro Electro Mechanical Systems (MEMS) and microfluidic devices have found numerous applications in the industrial sector. However, they require a fast, cost-effective and reliable manufacturing process in order to compete ... -
Enhanced fully cellulose based forward and reverse blood typing assay
(2019-05-07)
Article
Open AccessThis study presents an enhanced paper-based analytical device (PAD) for forward and reverse group blood typing. The proposed PAD uses a novel methodology, which provides highly reliable results on a fully cellulose based ... -
Enhanced selectivity of a 3D-printed microfluidic gas detector towards different volatile organic compounds (VOCs) for the effective monitoring of indoor air quality in vehicles
(Elsevier, 2023-12-10)
Article
Open AccessIn the age of connected mobility, monitoring volatile organic compounds (VOCs) inside the vehicle plays a pivotal role in effectively controlling in-cabin air quality conditions. In this context, it is imperative to develop ... -
Grease flow in an elbow channel
(2015-03-01)
Article
Open AccessThe flow of lubricating greases in an elbow channel has been modeled and validated with velocity profiles from flow visualizations using micro-particle image velocimetry. The elbow geometry induces a non-symmetric distribution ... -
Grease flow in an elbow-channel
(2014)
Conference report
Restricted access - publisher's policy -
Hansen Solubility Parameters (HSPs): A Reliable Tool for Assessing the Selectivity of Pristine and Hybrid Polymer Nanocomposites in the Presence of Volatile Organic Compounds (VOCs) Mixtures
(Wiley (John Wiley & Sons), 2022-11-03)
Article
Open AccessPolymeric materials are widely employed for monitoring volatile organic compounds (VOCs). Compared to other sensitive materials, polymers can provide a certain degree of selectivity, based on their chemical affinity with ... -
Hemostasis-on-a-chip: Impedance spectroscopy meets microfluidics for hemostasis evaluation
(2019-08-14)
Article
Open AccessIn the case of vascular injury, a complex process (of clotting) starts, involving mainly platelets and coagulation factors. This process in healthy humans is known as hemostasis, but when it is deregulated (thrombosis), ... -
Influences of trans-fatty acids on the tribological properties of plant oils
(IK4-Tekniker, 2016)
Conference report
Restricted access - publisher's policyA great challenge on tribology is the improvement of vegetable oils lubrication properties, which are environmentally friendly products, to replace long established lubricants based on mineral oils (petroleum). It is well ... -
Los aerogeneradores del futuro se beneficiarán de la nanotecnología
(Grupo Tecnipublicaciones, 2014-01)
Article
Restricted access - publisher's policyEl impacto que la micro y la nanotecnología tendré en nuestras vidas debe ir en todo momento acompañado de un desarrollo sostenible de las fuentes de energía. La mejora de la producción de la energía eólica es un primer ... -
Lubricating grease flow in a double restriction seal geometry: a computational fluid dynamics approach
(2017-09-01)
Article
Open AccessIn this paper, numerical simulations of lubricating grease flow in the grease pocket of a double restriction seal geometry using computational fluid dynamics are presented. The grease is treated as a single-phase ... -
New lubrication device to minimize wear at the pitch gear
(European Wind Energy Association (EWEA), 2015)
Conference lecture
Restricted access - publisher's policy -
New method for lubricating wind turbine pitch gears using embedded micro-nozzles
(Springer, 2017-02-19)
Article
Open AccessThe increase of power generated by wind turbines has increased the stresses applied in all of its components, thereby causing premature failures. Particularly, pitch and yaw gears suffer from excessive wear mainly caused ... -
New solution to prevent excessive wear in wind turbine gears
(Curran, 2014)
Conference report
Restricted access - publisher's policyDuring wind turbines operation, yaw and pitch bearings suffer from sequential traction-compression stresses causing millions of micro movements per cycle between the gear teeth. This situation reduces the lubricant thickness ... -
Novel applications of nonwood cellulose for blood typing assays
(2018-10-03)
Article
Open AccessPaper-based microfluidics devices can create a new healthcare model. Cellulose is carbohydrate polymer biocompatible and hydrophilic. These characteristics enhance the development of user-friendly diagnostic devices, but ... -
Novel lubrication system to improve the excessive wear in wind turbine yaw and pitch gears
(Universitat Politècnica de Catalunya, 2015-04-28)
Doctoral thesis
Open AccessManufacturers of wind turbines have observed a new phenomenon that appears in high power wind turbines: excessive wear in the teeth located at 0º in the pitch bearing. In order to design more efficient wind turbines, ... -
Novel variable radius spiral-shaped micromixer: from numerical analysis to experimental validation
(2018-10-27)
Article
Open AccessA novel type of spiral micromixer with expansion and contraction parts is presented in order to enhance the mixing quality in the low Reynolds number regimes for point-of-care tests (POCT). Three classes of micromixers ...
