Enginyeria Electrònica i Biomèdica: Envíos recientes
Mostrando ítems 281-300 de 787
Effect of temperature and flow rate on the cell-free area in the microfluidic channel
Blood cell manipulation in microdevices is an interesting task for the separation of particles, by their size, density, or to remove them from the buffer, in which they are suspended, for further analysis, and more. This ...
Highly Selective SAM-Nanowire Hybrid NO2 Sensor: Insight into Charge Transfer Dynamics and Alignment of Frontier Molecular Orbitals
Selectivity and low power consumption are major challenges in the development of sophisticated gas sensor devices. A sensor system is presented that unifies selective sensor-gas interactions and energy-harvesting properties, ...
Development of an ImmunoFET for Analysis of Tumour Necrosis Factor- (alfa) in Artificial Saliva: Application for Heart Failure Monitoring
Assessing tumour necrosis factor-(alfa) (TNF-(alfa)) levels in the human body has become an essential tool to recognize heart failure (HF). In this work, label-free, rapid, easy to use ImmunoFET based on an ion-sensitive ...
Anomalously low dielectric constant of confined water
The dielectric constant ε of interfacial water has been predicted to be smaller than that of bulk water (ε ≈ 80) because the rotational freedom of water dipoles is expected to decrease near surfaces, yet experimental ...
Revealing Local Grain Boundary Chemistry and Correlating it with Local Mass Transport in Mixed-Conducting Perovskite Electrodes
Grain boundary (GB) mass transport, and chemistry exert a pronounced influence on both the performance and stability of electrodes for solid oxide electrochemical cells. Lanthanum strontium cobalt ferrite (LSCF6428) is ...
Influence of colloidal Au on the growth of ZnO nanostructures
Vapor-liquid-solid processes allow growing high-quality nanowires from a catalyst. An alternative to the conventional use of catalyst thin films, colloidal nanoparticles offer advantages not only in terms of cost, but also ...
First Observation of the Decays ¯¯¯B0→D+K−π+π− and B−→D0K−π+π−
First observations of the Cabibbo-suppressed decays ¯¯¯ B 0 → D + K − π + π − and B − → D 0 K − π + π − are reported using 35 pb − 1 of data collected with the LHCb detector. Their branching fractions are measured with ...
Operational Experience and Performance of the Belle II Pixel Detector
The Belle II experiment at the super KEK B factory (SuperKEKB) started its physics operation with the full detector setup in March 2019, and it aims at collecting 50 ab−1 of e+e− collision data. The vertex detector (VXD) ...
Tailoring the transport properties of mesoporous doped cerium oxide for energy applications
Hard-template nanocasted mesoporous cerium oxide possesses a unique combination of thermal stability, high surface area, and short diffusion lengths for mass and gas transport, which makes it relevant for high-temperature ...
Resonant Raman scattering based approaches for the quantitative assessment of nanometric ZnMgO layers in high efficiency chalcogenide solar cells
This work reports a detailed resonant Raman scattering analysis of ZnMgO solid solution nanometric layers that are being developed for high efficiency chalcogenide solar cells. This includes layers with thicknesses below ...
Nanoscale wetting of single viruses
The epidemic spread of many viral infections is mediated by the environmental conditions and influenced by the ambient humidity. Single virus particles have been mainly visualized by atomic force microscopy (AFM) in liquid ...
Reconstruction of the SiO2 structure damaged by low-energy Ar-implanted ions
The damage created in SiO2 layers by low-energy Ar ions (130 keV) and the reconstruction of the structure after various annealing steps have been characterized as a function of the implantation dose. Quantitative determinations ...
Non-invasive monitoring of pH and oxygen using miniaturized electrochemical sensors in an animal model of acute hypoxia
Background: One of the most prevalent causes of fetal hypoxia leading to stillbirth is placental insufficiency. Hemodynamic changes evaluated with Doppler ultrasound have been used as a surrogate marker of fetal hypoxia. ...
Precise ionospheric electron content monitoring from single-frequency GPS receivers
The number of existing global positioning system (GPS) single-frequency receivers continues growing. More than 90% of GPS receivers are implemented as low-cost single-frequency chipsets embedded in smartphones. This provides ...
Size effects in the magneto-optical response of Co nanoparticles
A study of the magneto-optical (MO) spectral response of Co nanoparticles embedded in MgO as a function of their size and concentration in the spectral range from 1.4 to 4.3 eV is presented. The nanoparticle layers were ...
DronE-Nose: drone-embedded measurement platform for odour monitoring
Electronic noses have improved in terms of reliability in the last two decades. Their design has allowed for model training and validation for predicting odour emissions and classifying odour sources. In the last few years, ...
Machine learning data augmentation strategy for electron energy loss spectroscopy: generative adversarial networks
Recent advances in machine learning (ML) have highlighted a novel challenge concerning the quality and quantity of data required to effectively train algorithms in supervised ML procedures. This article introduces a data ...
Performance of prototype tandem UV filter and organic transparent photovoltaic windows
Building integrated photovoltaics (PV) are promising technologies to integrate renewable energy production and achieve positive energy buildings. Transparent photovoltaics increase the integration options, especially in ...
Observation of a New Ξb- Resonance
From samples of p p collision data collected by the LHCb experiment at √ s = 7 , 8 and 13 TeV, corresponding to integrated luminosities of 1.0, 2.0 and 1.5 fb − 1 , respectively, a peak in both the Λ 0 b K − and Ξ 0 b ...
Measurement of the Ωc0 Baryon Lifetime
We report a measurement of the lifetime of the Ω 0 c baryon using proton-proton collision data at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb − 1 collected by the LHCb ...
