Regiones insulares y autosuficientes para reducir la huella ambiental by Ruperto Hernández-González, Maria del Mar Barbero-Barrera

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Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors by Lorena Cabria, José Ángel García, Julio Gutiérrez-Ríos, Antonio Tazón, Juan Vassal'lo

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Effect on Compression Molding Parameters in Mechanical Properties of MWCNT/Glass Fiber/Epoxy Composites by Jayaprakash Venugopal, B. Dhanasakkaravarthi, Raviteja Surakasi, Moti Lal Rinawa, L. H. Manjunatha, Razan A. Alshgari, Saikh Mohammad Wabaidur, Md Ataul Islam, I. Jenish

“…Reinforcing fibers, nanofillers, matrix materials, and manufacturing techniques all have a role in the mechanical characteristics of hybrid composites. MWCNTs-reinforced E-glass/Kevlar/epoxy composites are appropriate fillers for structural applications. …”
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“¿Qué es eso del amor?” La transformación del concepto del amor en el contexto de la pandemia en Medellín by Germán Darío Hernández Zuluaga, Miguel Paradela López, José Miguel Blanco Sánchez

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Optical Properties of DMA-π-DCV Derivatives: A Theoretical Inspection under the DFT Microscope by Joaquín Calbo

“…A donor-acceptor-donor triad based on tetrathiafulvalene was utilised as a test system for the prediction of its two CT bands of different nature, energy, and intensity. The hybrid PBE0 (or a similar hybrid analogue) consolidates as the best choice for the prediction of CT excitations in the DMA-π-DCV push-pull family.…”
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Overtourism in urban destinations: the myth of smart solutions by María García Hernández, Josep Ivars Baidal, Sofía Mendoza de Miguel

“…Therefore, the objective of this study is to analyse the level of implementation of smart solutions in four Spanish destinations: Donostia-San Sebastián, Madrid, Málaga and Valencia. The methodology used combines the compilation of information on initiatives and measures found in public tourism planning documents with semi-structured interviews with those responsible for managing the Smart City strategy and the SD project. …”
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Damping Multimode Switching Control of Semiactive Suspension for Vibration Reduction in a Wheel Loader by Tao Wei, Liu Zhiqiang

“…., the on-off statuses of switch electromagnetic valves, the axle suspension proposed for the wheel loader poses a challenging hybrid control problem. To solve this problem, the mixed logical dynamical (MLD) modeling approach for hybrid systems is applied to model the dynamic characteristics of the system damping control procedure. …”
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Office 4.0 – modern office digital technology, relevant to the post-COVID era by E. V. Vasilieva, O. I. Dolganova

“…Therefore, an urgent topic today is the discussion of the question of whether the hybrid or online format will remain as established forms of interaction between people. …”
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Trajectory Tracking Control Study of a New Parallel Mechanism with Redundant Actuation by Haiqiang Zhang, Hairong Fang, Dan Zhang, Qi Zou, Xueling Luo

“…The illustrative simulation results demonstrate that the force/position hybrid control scheme is available to provide good trajectory tracking performance. …”
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Lion Algorithm-Optimized Long Short-Term Memory Network for Groundwater Level Forecasting in Udupi District, India by B. S. Supreetha, Narayan Shenoy, Prabhakar Nayak

“…The hybrid LSTM-LA-based forecasting model is promising for a larger dataset.…”
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Impact of Metadata on Full-text Information Retrieval Performance: An Experimental Research on a Small Scale Turkish Corpus by Çağdaş Çapkın

“…Information institutions use text-based information retrieval systems to store, index and retrieve metadata, full-text, or both metadata and full-text (hybrid) contents. The aim of this research was to evaluate impact of these contents on information retrieval performance. …”
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Novel Techniques to Speed Up the Computation of the Automorphism Group of a Graph by José Luis López-Presa, Luis F. Chiroque, Antonio Fernández Anta

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Groundwater Quality in the Mediterranean Region by Giovanni Mongelli, Ariadne Argyraki, Mari Luz García Lorenzo, Maisa’a Wasif Shammout, Michele Paternoster, Vincenzo Simeone

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Quantization of the Electric Conductivity in Carbon Nanotubes by M. A. Grado-Caffaro, M. Grado-Caffaro

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and Models: A Self-Similar Approach by José Antonio Belinchón

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A Short Theoretical Note on Optical Absorption of Amorphous Gallium Arsenide in the Infrared Range by M. A. Grado-Caffaro, M. Grado-Caffaro

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Editorial: Microbial safety of animal-based food products by María J. Andrade, Micaela Álvarez, Paula Rodrigues

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Anisotropic Weak Hardy Spaces and Wavelets by B. Barrios, J. J. Betancor

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A Four-Order Linear Recurrence Formula Involving the Quartic Gauss Sums and One Kind Two-Term Exponential Sums by Lan Qi, Xingxing Lv

“…As an application, we can obtain all values of this kind hybrid power mean with mathematica software.…”
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The Paley-Wiener-Levinson theorem revisited by A. G. García

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