Browsing Artículos, Comunicaciones, Libros by Title
Now showing items 5382-5401 of 11845
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Hydrogel-Core Microstructured Polymer Optical Fibers for Selective Fiber Enhanced Raman Spectroscopy
(MDPI, 2021-03-06)A new approach of Fiber Enhanced Raman Spectroscopy (FERS) is described within this article based on the use of Hydrogel-Core microstructured Polymer Optical Fibers (HyC-mPOF). The incorporation of the hydrogel only on the ... -
Hydrogen Peroxide-Preconditioned Human Adipose-Derived Stem Cells Enhance the Recovery of Oligodendrocyte-Like Cells after Oxidative Stress-Induced Damage
(MDPI, 2020-12-14)Oxidative stress associated with neuroinflammation is a key process involved in the pathophysiology of neurodegenerative diseases, and therefore, has been proposed as a crucial target for new therapies. Recently, the ... -
Hydrogen Pressure as a Key Parameter to Control the Quality of the Naphtha Produced in the Hydrocracking of an HDPE/VGO Blend
(MDPI, 2022-05-16)The hydrocracking of high-density polyethylene (HDPE) blended with vacuum gas oil (VGO) has been studied to assess the effect of H2 pressure on the yield and composition of the products and with the aim of obtaining ... -
Hydrogen production by steam reforming of bio-oil/bio-ethanol mixtures in a continuous thermal-catalytic process
(Elsevier, 2014-04-24)The feasibility of the steam reforming of bio-oil aqueous fraction and bio-ethanol mixtures has been studied in a continuous process with two in-line steps: thermal step at 300 ºC (for the controlled deposition of pyrolytic ... -
Hydrogen sulphide-triggered theranostic prodrugs based on the dynamic chemistry of tetrazines
(Royal Society of Chemistry, 2022)[EN] Dynamic nucleophilic aromatic substitution of tetrazines (S(N)Tz) has been employed to build theranostic prodrugs that are activated by hydrogen sulfide. H2S is typically found in high concentrations in some kinds of ... -
Hydrogen Tunneling in Catalytic Hydrolysis and Alcoholysis of Silanes
(Wiley, 2022-09-05)[EN] An unprecedented quantum tunneling effect has been observed in catalytic Si-H bond activations at room temperature. The cationic hydrido-silyl-iridium(III) complex, {Ir[SiMe(o-C6H4SMe)(2)](H)(PPh3)(THF)}[BAr4F], has ... -
Hydrogen-rich gas production by continuous pyrolysis and in-line catalytic reforming of pine wood waste and HDPE mixtures
(Elsevier, 2017-01-12)The continuous pyrolysis-reforming of pine sawdust and high density polyethylene mixtures (25, 50 and 75 wt% HDPE) has been performed in a two-stage reaction system provided with a conical spouted bed reactor (CSBR) and ... -
Hydrogenation of sunflower oil over M/SiO2 and M/Al2O3 (M = Ni, Pd, Pt, Co, Cu) catalysts
(Springer, 2016-03-11)This work is aimed at evaluating the performance of several catalysts in the partial hydrogenation of sunflower oil. The catalysts are composed of noble (Pd and Pt) and base metals (Ni, Co and Cu), supported on both silica ... -
Hydrogenolysis of 5-hydroxymethylfurfural to produce 2,5-dimethylfuran over ZrO2 supported Cu and RuCu catalysts
(ACS, 2018-07-13)Glucose dehydration to HMF and its hydrogenolysis to DMF, a suitable biofuel, have been studied using the same catalysts for both processes. The 10CuZr catalyst shows the highest HMF yield (25.6%) with an acceptable glucose ... -
Hydrogenolysis of Glycerol over NiCeZr Catalyst Modified with Mg, Cu, and Sn at the Surface Level
(MDPI, 2024-03-20)Biomass valorization is an essential strategy for converting organic resources into valuable energy and chemicals, contributing to the circular economy, and reducing carbon footprints. Glycerol, a byproduct of biodiesel ... -
Hydrolytic degradation and cytotoxicity of poly(lactic-co-glycolic acid)/multiwalled carbon nanotubes for bone regeneration
(Wiley, 2019-08-27)Biodegradable poly(l-lactide-co-glycolide) (PLGA)/multiwalled carbon nanotubes (MWCNTs) scaffolds produced by thermally induced phase separation (TIPS) are studied for bone regeneration. Their magnetic properties, cytotoxicity, ... -
Hydromorphological characterization, assessment and monitoring in ephemeral streams: a case study in NE Iberian Peninsula
(International Association of Geomorphology, 2022-06-20)Ephemeral streams are an important reality in the Mediterranean area, constituting more than 50% of the channel network in the eastern region of the Iberian Peninsula. The northernmost cases are located in the semi-arid ... -
Hydrophobic Eutectogels as Electrodes for Underwater Electromyography Recording
(ACS, 2023-11-15)Underwater recording remains a critical challenge in bioelectronics because traditional flexible electrodes can not fulfill essential requirements such as stability and steady conductivity in aquatic environments. Herein, ... -
Hydrophobization and Photo-Stabilization of Radiata Pinewood: The Effect of the Esterification on Thermal and Mechanical Properties
(MDPI, 2020-10-24)Wood protection through chemical modification has received increasing interest over the last decades due to the environmental issues related to conventional biocides or protecting products. Consequently, a wide range of ... -
Hydrotalcite and Hydrocalumite in Mortar Binders from the Medieval Castle of Portilla (Álava, North Spain): Accurate Mineralogical Control to Achieve More Reliable Chronological Ages
(MDPI, 2018-08)Mortars from different stratigraphic units at Portilla Castle (Alava, North Spain) have been analyzed for mineralogical characterization before radiocarbon dating. The mortar binder at Portilla Castle is composed not only ... -
Hydrothermal treatments of walnut shells: a potential pretreatment for subsequent product obtaining
(Elsevier, 2020-10-08)Walnuts are nowadays widely consumed. Since the edible part of walnuts does not account more than 50-60% of their total weight, the total amount of shells produced annually is huge. However, as walnut shells are part of ... -
Hyers Stability and Multi-Fuzzy Banach Algebra
(MDPI, 2021-12-29)In this paper, we define multi-fuzzy Banach algebra and then prove the stability of involution on multi-fuzzy Banach algebra by fixed point method. That is, if f:A→A is an approximately involution on multi-fuzzy Banach ... -
Hyers Stability in Generalized Intuitionistic P-Pseudo Fuzzy 2-Normed Spaces
(MDPI, 2022-12-26)In this article, we defined the generalized intuitionistic P-pseudo fuzzy 2-normed spaces and investigated the Hyers stability of m-mappings in this space. The m-mappings are interesting functional equations; these functional ... -
Hyers-Ulam-Rassias Stability of Functional Differential Systems with Point and Distributed Delays
(Hindawi Publishing Corporation, 2015)This paper investigates stability and asymptotic properties of the error with respect to its nominal version of a nonlinear time-varying perturbed functional differential system subject to point, finite-distributed, and ... -
Hygroregulation, a key ability for eusocial insects: Native Western European honeybees as a case study
(Public Library Science, 2019-02-08)Sociality has brought many advantages to various hymenoptera species, including their ability of regulating physical factors in their nest (e.g., temperature). Although less studied, humidity is known to be important for ...