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Documentos de las investigaciones financiadas por la UE dentro del Séptimo Programa Marco (7º PM) y del Consejo Europeo de Investigación (CEI), en el marco del Proyecto OpenAIRE que promueve el acceso abierto en Europa

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10 Gbit/s error-free DPSK modulation using a push-pull dual-drive silicon modulator
(Elsevier, 2013-09-01) Aamer, Mariam; Thomson, D. J.; Gutiérrez Campo, Ana María; Brimont, Antoine Christian Jacques; Gardes, F. Y.; Reed, G. T.; Fedeli, J. M.; Håkansson, Ola Andreas; Sanchis Kilders, Pablo; Escuela Técnica Superior de Ingeniería de Telecomunicación; Departamento de Comunicaciones; Instituto Universitario de Tecnología Nanofotónica; Engineering and Physical Sciences Research Council, Reino Unido; European Commission; Generalitat Valenciana
[EN] We experimentally demonstrate a high-speed differential phase shift keying (DPSK) modulation using a silicon push-pull operated dual-drive Mach Zehnder modulator (MZM) based on carrier depletion. 5 Gbit/s and 10 Gbit/s error-free modulation is demonstrated by demodulating the generated DPSK modulated signal using a demodulation circuit based on a polarization delay interferometer through the use of a differential group delay (DGD). Furthermore, the potential for higher DPSK modulation speeds up to 20 Gbit/s is also demonstrated. The obtained results validate the potential to achieve higher order modulation formats, such as quadrature phase shift keying (QPSK), by arranging the MZM in a nested configuration. (C) 2013 Elsevier B.V. All rights reserved.
10 Gbit/s Error-Free Silicon Optical Modulator for Both TE and TM Polarized Light
(Institute of Electrical and Electronics Engineers (IEEE), 2011-12-01) Rasigade, G.; Ziebell, M.; Marris-Morini, D.; Brimont, Antoine Christian Jacques; Gutiérrez Campo, Ana María; Sanchis Kilders, Pablo; Fédéli, Jean Marc; Duan, Guanghua; Cassan, E.; Vivien, L.; Escuela Técnica Superior de Ingeniería de Telecomunicación; Departamento de Comunicaciones; Instituto Universitario de Tecnología Nanofotónica
[EN] We report the first experimental demonstration of a silicon optical modulator based on a pipin diode integrated in a 50-mu m radius ring resonator. Large modulation efficiency was obtained with a V pi L pi product of 3 V.cm for both transverse-electric (TE) and transverse-magnetic (TM) input light. Insertion loss of the doped ring resonator was lower than 1 dB and 10-Gb/s operations was demonstrated with an extinction ratio of 5.9 dB for TE and of 5.3 dB for TM polarization. A bit-error rate (BER) lower than 10(-9) was measured in both TE and TM polarizations, proving the potential application of the modulator in optical transmission systems.
105 K Wide Room Temperature Spin Transition Memory Due to a Supramolecular Latch Mechanism
(American Chemical Society, 2022-08-10) Seredyuk, Maksym; Znovjyak, Kateryna; Valverde-Muñoz, Francisco Javier; da Silva, Ivan; Muñoz Roca, María del Carmen; Moroz, Yurii S.; Real, José Antonio; Departamento de Física Aplicada; Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial; Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica; Unión Europea; Generalitat Valenciana; Universitat de València; Ministerio de Ciencia e Innovación; Ministry of Education and Science of Ukraine
[EN] Little is known about the mechanisms behind the bistability (memory) of molecular spin transition compounds over broad temperature ranges (>100 K). To address this point, we report on a new discrete Fe-II neutral complex [(FeL2)-L-II](0) (1) based on a novel asymmetric tridentate ligand 2-(5-(3-methoxy-4H-1,2,4-triazol-3-yl)-6-(1H-pyrazol-1-yl))pyridine (L). Due to the asymmetric cone-shaped form, in the lattice, the formed complex molecules stack into a one-dimensional (1D) supramolecular chain. In the case of the rectangular supramolecular arrangement of chains in methanolates 1-A and 1-B (both orthorhombic, Pbcn) differing, respectively, by bent and extended spatial conformations of the 3-methoxy groups (3MeO), a moderate cooperativity is observed. In contrast, the hexagonal-like arrangement of supramolecular chains in polymorph 1-C (monoclinic, P2(1)/c) results in steric coupling of the transforming complex species with the peripheral flipping 3MeO group. The group acts as a supramolecular latch, locking the huge geometric distortion of complex 1 and in turn the trigonal distortion of the central Fe-II ion in the high-spin state, thereby keeping it from the transition to the low-spin state over a large thermal range. Analysis of the crystal packing of 1-C reveals significantly changing patterns of close intermolecular interactions on going between the phases substantiated by the energy framework analysis. The detected supramolecular mechanism leads to a record-setting robust 105 K wide hysteresis spanning the room temperature region and an atypically large T-LIESST relaxation value of 104 K of the photoexcited high-spin state. This work highlights a viable pathway toward a new generation of cleverly designed molecular memory materials.
1310 nm TM grating couplers to operate silicon nitride ring resonator biosensors
(Elsevier, 2023-05) Castelló-Pedrero, Lucía; Gómez Gómez, María Isabel; Zurita Herranz, David; García Rupérez, Jaime; Griol Barres, Amadeu; Martínez Abietar, Alejandro José; Departamento de Física Aplicada; Escuela Técnica Superior de Ingeniería de Telecomunicación; Departamento de Comunicaciones; Instituto Universitario de Tecnología Nanofotónica; European Commission; Generalitat Valenciana; Ministerio de Ciencia, Innovación y Universidades
[EN] Photonic integrated circuits (PICs) fabricated on silicon nitride (SiN) wafers are witnessing a massive implementation because they can provide low-loss waveguides in a broad wavelength range (from the visible to the near infrared) whilst being fabricated in large volumes using standard silicon fabrication processes. One of the most relevant application fields of this technology is biosensing since SiN PICs enable label-free lab-on-a-chip systems for fast and sensitive detection of minute amounts of different biological entities. To this end, resonant structures such as ring resonators (RR) are highly appropriate, but they need suitable interfaces with optical fiber to be tested on-wafer and used in real applications. The interface that satisfies the two previous requirements is the grating coupler (GC). However, experimental evidence of GCs operating at 1310 nm wavelengths for the transverse magnetic (TM) mode, for which RR-based sensors perform better than for the widely employed transverse electric (TE) mode, has not been reported so far. In this work, the operation of fully-etched focusing GCs at 1310 nm wavelengths for the TM mode in a SiN PIC is demonstrated. Experiments show that the fabricated GCs display an approximate to 40 nm bandwidth and coupling losses around 13 dB per interface. In addition, we show successful biosensing experiments using bovine serum albumin and anti-bovine serum albumin as biological agents in a microfluidic environment. Further engineering for the interface should lead to lower coupling losses, which would pave the way to practical applications of SiN PICs based on RRs operated for the TM mode and at 1310 nm wavelengths.
160-Gb/s Optical OFDM Demultiplexer based on Photonic Ring Resonators
(Institute of Electrical and Electronics Engineers (IEEE), 2012-06-20) Vilar Mateo, Ruth; Ramos Pascual, Francisco; Martí Sendra, Javier; Escuela Técnica Superior de Ingeniería de Telecomunicación; Departamento de Comunicaciones; Instituto Universitario de Tecnología Nanofotónica; European Commission
A novel all-optical OFDM demultiplexer based on integrated photonic ring resonators (RR) is proposed and its performance validated. The proposed optical OFDM demultiplexer overcome the processing speed limits introduced by electronics and is suitable for very large scale integration, providing a compact and cost-effective solution. The performance of this device considering a Silicon-on-Insulator (SOI) platform has been demonstrated by demultiplexing a 160-Gb/s (4- subcarrier x 40-Gb/s) OFDM signal. Simulations results show excellent BER performance with error-free operation for each demultiplexed subchannel.
2-Isopropyl-1,3-dimethylimidazolium as a versatile structure-directing agent in the synthesis of zeolites
(The Royal Society of Chemistry, 2023-09-19) Yu, HJ; Rojas, A; Gao, Zihao; Gómez-Hortigüela, L.; Villaescusa Alonso, Luis Angel; Li, JA; Paillaud, JL; Camblor, Miguel A.; Departamento de Química; Escuela Técnica Superior de Ingeniería Industrial; Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico; European Commission; GENERALITAT VALENCIANA; Agencia Estatal de Investigación
[EN] Organic structure directing agents with low specificity offer opportunities for zeolite discovery by tweaking other structure-directing factors.
2b or not 2b: experimental evolution of functional exogenous sequences in a plant RNA virus
(Oxford University Press, 2017) Willemsen, Anouk; Zwart, Mark Peter; Ambros Palaguerri, Silvia; Carrasco Jiménez, José Luis; Elena Fito, Santiago Fco; Ministerio de Economía y Competitividad; European Commission; John Templeton Foundation
[EN] Horizontal gene transfer (HGT) is pervasive in viruses and thought to be a key mechanism in their evolution. On the other hand, strong selective constraints against increasing genome size are an impediment for HGT, rapidly purging horizontally transferred sequences and thereby potentially hindering evolutionary innovation. Here, we explore experimentally the evolutionary fate of viruses with simulated HGT events, using the plant RNA virus Tobacco etch virus (TEV), by separately introducing two functional, exogenous sequences to its genome. One of the events simulates the acquisition of a new function though HGT of a conserved AlkB domain, responsible for the repair of alkylation or methylation damage in many organisms. The other event simulates the acquisition of a sequence that duplicates an existing function, through HGT of the 2b RNA silencing suppressor from Cucumber mosaic virus. We then evolved these two viruses, tracked the maintenance of the horizontally transferred sequences over time, and for the final virus populations, sequenced their genome and measured viral fitness. We found that the AlkB domain was rapidly purged from the TEV genome, restoring fitness to wild-type levels. Conversely, the 2b gene was stably maintained and did not have a major impact on viral fitness. Moreover, we found that 2b is functional in TEV, as it provides a replicative advantage when the RNA silencing suppression domain of HC-Pro is mutated. These observations suggest a potentially interesting role for HGT of short functional sequences in ameliorating evolutionary constraints on viruses, through the duplication of functions.
2D feasibility study of joint reconstruction of attenuation and activity in limited angle TOF-PET
(Institute of Electrical and Electronics Engineers, 2021-09) Vergara, Marina; Rezaei, Ahmadreza; Schramm, Georg; Rodríguez Álvarez, María José; Benlloch Baviera, Jose María; Nuyts, Johan; Departamento de Matemática Aplicada; Escuela Técnica Superior de Ingeniería Informática; Instituto de Instrumentación para Imagen Molecular; European Commission; Research Foundation Flanders; National Institutes of Health, EEUU; Ministerio de Economía y Competitividad; Agencia Estatal de Investigación
[EN] Several research groups are studying organ-dedicated limited angle positron emission tomography (PET) systems to optimize performance-cost ratio, sensitivity, access to the patient, and/or flexibility. Often open systems are considered, typically consisting of two detector panels of various sizes. Such systems provide incomplete sampling due to limited angular coverage and/or truncation, which leads to artifacts in the reconstructed activity images. In addition, these organ-dedicated PET systems are usually stand-alone systems, and as a result, no attenuation information can be obtained from anatomical images acquired in the same imaging session. It has been shown that the use of time-of-flight (TOF) information reduces incomplete data artifacts and enables the joint estimation of the activity and the attenuation factors. In this work, we explore with simple 2-D simulations the performance and stability of a joint reconstruction algorithm, for imaging with a limited angle PET system. The reconstruction is based on the so-called maximum-likelihood attenuation correction factors (MLACF) algorithm and uses linear attenuation coefficients in a known-tissue-class region to obtain absolute quantification. Different panel sizes and different TOF resolutions are considered. The noise propagation is compared to that of MLEM reconstruction with exact attenuation correction (AC) for the same PET system. The results show that with good TOF resolution, images of good visual quality can be obtained. If also a good scatter correction can be implemented, quantitative PET imaging will be possible. Further research, in particular on scatter correction, is required.
2D study of a joint reconstruction algorithm for limited angle PET geometries
(KU Leuven, 2021-07-23) Vergara, Marina; Rezaei, Ahmadreza; Rodríguez Álvarez, María José; Benlloch Baviera, Jose María; Nuyts, Johan; Departamento de Matemática Aplicada; Escuela Técnica Superior de Ingeniería Informática; Instituto de Instrumentación para Imagen Molecular
[EN] Recently, a wide interest on organ-dedicated PET systems has been shown. Some of those systems present geometries that produce an incomplete sampling of the tomographic data due to limited angular coverage and/or truncation, which lead to artifacts on the reconstructed image. Moreover, they are often designed as standalone systems, which implies the absence of anatomical information to estimate the attenuation factors. In this work, we propose a joint reconstruction algorithm for estimating the activity and the attenuation factors on a limited angle PET system with time-of-flight capabilities. This algorithm is based on MLACF and uses literature linear attenuation coefficients in a known tissue-class region to obtain an absolute quantification. We evaluate the algorithm through simple 2D simulations for different TOF resolutions and angular coverage. The results show that with good TOF resolution quantitative PET imaging can be achieved even with aggressive angular limitation.
2D/2D Cu-tetrahydroxyquinone MOF/N-doped graphene heterojunction as photocatalyst for overall water splitting
(Elsevier, 2023-03) Szalad, Horatiu; Uscategui Linares, Andrés Felipe; Albero Sancho, Josep; García Gómez, Hermenegildo; Instituto Universitario Mixto de Tecnología Química; Departamento de Química; Escuela Técnica Superior de Ingeniería Industrial; GENERALITAT VALENCIANA; European Commission; Universitat Politècnica de València
[EN] A novel 2D/2D heterojunction (CuTHQ/NG) has been prepared by in situ growth of the 2D CuTHQ MOF on defective N-doped graphene (NG), and its photocatalytic activity for overall water splitting studied in detail. CuTHQ/NG heterojunction has demonstrated better photocatalytic activity (480 mu mol/g) than the individual components (257 and 65 mu mol/g for CuTHQ and NG, respectively) for H2 evolution. Furthermore, unlike the individual components, the as-prepared 2D/2D CuTHQ/NG heterojunction promotes overall water splitting under simulated sunlight (164 mu mol of H2/g and 80 mu mol of O2/g). We have also studied the photo-induced charge separation and recombination reactions. Photocurrent measurements and emission quenching experiments have confirmed improved charge separation in the CuTHQ/NG heterojunction. Moreover, the charge recombination kinetics have been investigated with transient absorption spectroscopy. Electron/hole recombination in the heterojunction has been determined more than one order of magnitude slower (8.9 mu s) than the mechanical mixture of CuTHQ and NG (0.35 mu s). Finally, the photochemical stability of the 2D/2D heterojunction has been investigated performing a long-term (96 h) experiment, demonstrating near linear H2 evolution along the irradiation time. (c) 2022 The Author(s). Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
3 sprints from zero to innovative medical device in 16 months: Benefits of combining Human Factors and Agile
(AHFE, 2023) Morales-Casas, Adrián; López Vicente, Mª Amparo; Solano García, Lorenzo; Laparra Hernandez, Jose; Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial; Departamento de Ingeniería Mecánica y de Materiales; Instituto de Diseño para la Fabricación y Producción Automatizada; Junta de Andalucía; European Regional Development Fund; Ministerio de Ciencia e Innovación
[EN] This study aims to lay out an Agile product development case study-oriented research with core tenets on the process mapping and the methodologies involved in the solution implementation. The developed prototype is used for measuring the principal vital signs, without contact, only through video images. The measured vital signs are heart rate, respiratory rate, oxygen saturation, temperature, and blood pressure contactless at 2 meters (6.5 ft). The developed solution was presented in the framework of public bidding for the emergency service of the autonomous community of Andalucía (in Spain). The Agile project management approach has been integrated to overcome the limitations of medical devices' commonly accepted Stage-Gate project management approach. During the prototype's concept and detailed design phases, eight designs for Usability (DfU) tools were implemented to generate value. These tools were implemented in the concept phase in parallel with developing the IP strategy, contextual research, risk management strategy, and regulatory strategy development to identify the user's needs in an iterative process. The users in this case study were paramedics, EMT¿s and EMC¿s. Further, during the detailed design phase, the DfU helped detect design flaws and usability issues before the validation phase. A multifunctional team of eight specialists was consolidated to develop the solution, with role distribution according to the scrum team model. This team has been working together for 16 months. In the last sprint, first responders tested the prototype with a TRL 7 in laboratory and field trials simulating real conditions. The results were collected through several requirement acquisition techniques. The prototype was continuously improved by collecting value-generating data along the project and establishing strategic checkpoints. Thus, many design flaws and usability issues were prevented throughout the concept and development phase. Besides, reducing the development time without compromising all the necessary design traceability and quality requirements according to ISO 13485 standards.
3-D Printed Waveguide Filters: Manufacturing Process and Surface Mounted Assembly
(Institute of Electrical and Electronics Engineers, 2023-12) Nova-Giménez, Vicente; Bachiller Martin, Maria Carmen; Pascual-Folch, Jordi; Ferrer, Álvaro; Ponce-Gonzalez, Luis Nicolas; Marín García, María Luisa; Boria Esbert, Vicente Enrique; Instituto Universitario Mixto de Tecnología Química; Escuela Técnica Superior de Ingeniería de Telecomunicación; Departamento de Comunicaciones; Instituto Universitario de Telecomunicación y Aplicaciones Multimedia; Departamento de Química; Escuela Técnica Superior de Ingeniería Industrial; AGENCIA ESTATAL DE INVESTIGACION; Agencia Estatal de Investigación; AGENCIA VALENCIANA DE LA INNOVACION; Agència Valenciana de la Innovació
[EN] This article presents a new approach to manufacturing and assembling inexpensive, lightweight devices using 3-D-printed waveguides, and surface-mount technology (SMT). Specifically, we have employed stereolithography (SLA) and a combination of electroless and electroplating processes to develop cavity filters in the X- and C-bands. The filters can be efficiently integrated into planar circuits via a reliable and simple transition that enables surface-mount assembly. Two resonator topologies, circular and rectangular, were examined and compared to develop X-band filters, and a triplet topology has been developed for the C-band. The measured frequency responses were consistent with simulations, with insertion losses below 2 and 1.43 dB for X- and C-bands, respectively. We have conducted several Monte Carlo analyses and a dimensional study to assess the impact of manufacturing tolerances on filter per-formance. Furthermore, a rectangular cavity resonator has been used to approximate the effective conductivity of the deposited copper coating, considering the detrimental effects of oxidation and surface roughness. The resulting effective conductivity of 17.7 MS/m was found to be higher than the current state-of-the-art values. Finally, SMT assembly offers several advantages over traditional methods, including reduced size, simplified assembly, and integration with planar systems. The results presented in this work indicate that combining 3-D printing and SMT provides a simple and efficient solution for developing lightweight and highly integrated components with superior performance.
30 Years of Automated GUI Testing: A Bibliometric Analysis
(Springer, 2021-09-10) Rodríguez-Valdés, Olivia; Vos, Tanja Ernestina; Aho, Pekka; Marín Campusano, Beatriz Mariela; Departamento de Sistemas Informáticos y Computación; Escuela Técnica Superior de Ingeniería Informática; Instituto Universitario Valenciano de Investigación en Inteligencia Artificial
[EN] Context: Over the last 30 years, GUIs have changed considerably, becoming everyday part of our lives through smart phones and other devices. More complex GUIs and multitude of platforms have increased the challenges when testing software through the GUI. Objective: To visualise how the field of automated GUI testing has evolved by studying the growth of the field; types of publications; influential events, papers and authors; collaboration among authors; and trends on GUI testing. Method: To conduct a bibliometric analysis of automated GUI testing by performing a systematic search of primary studies in Scopus from 1990 to 2020. Results: 744 publications were selected as primary studies. The majority of them were conference papers, the most cited paper was published on 2013, and the most published author has 53 papers. Conclusions: Automated GUI testing has continuously grown. Keywords show that testing applied to mobile interfaces will be the trend in next years, along with the integration of Artificial Intelligence and automated exploration techniques.
3D Data Fusion for Historical Analyses of Heritage Buildings Using Thermal Images: The Palacio de Colomina as a Case Study
(MDPI AG, 2022-11) Patrucco, Giacomo; Gómez Gil, Antonio Miguel; Adineh, Ali; Rahrig, Max; Lerma García, José Luis; Departamento de Ingeniería Cartográfica Geodesia y Fotogrametría; Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica; Escuela Técnica Superior de Arquitectura; Instituto Universitario de Restauración del Patrimonio; Departamento de Composición Arquitectónica; European Commission; Ministero dell'Istruzione, dell'Università e della Ricerca
[EN] In the framework of built heritage monitoring techniques, a prominent position is occu- pied by thermography, which represents an efficient and non-invasive solution for these kinds of investigations, allowing the identification of phenomena detectable only in the non-visible range of the electromagnetic spectrum. This is of extreme interest, especially considering the possibility of integrating the radiometric information with the 3D models achievable from laser scanning or pho- togrammetric techniques, characterised by a high spatial resolution. This paper aims to illustrate how combining different geomatics techniques (in particular, by merging thermal images, laser scanning point clouds, and traditional visible colour photogrammetric data) can efficiently support historical analyses for studying heritage buildings. Additionally, a strategy for generating HBIM models starting from the integration of 3D thermal investigations and historical sources is proposed, concerning both the multi-temporal modification of the volumes of the building and the individual architectural elements. The case study analysed for the current research was the Palacio de Co- lomina in Valencia, Spain, a noble palace¿now the headquarters of a university¿that, during the last few centuries, has been subjected to considerable transformations in terms of rehabilitation works and modification of its volume.
3D Food printing: effect of apricot pulp concentration on 2 texture analysis profile and image analysis in a gel cylinder
(MDPI AG, 2022-09-30) Molina Montero, María del Carmen; Matas Gil, Adrián; Igual Ramo, Marta; Martínez Monzó, Javier; García Segovia, Purificación; Departamento de Tecnología de Alimentos; Instituto Universitario de Ingeniería de Alimentos (FoodUPV); Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural; Generalitat Valenciana; Agencia Estatal de Investigación; Universitat Politècnica de València
[EN] Three-dimensional (3D) printing is an excellent technology for creating food products of any shape and dimension, with desired flavors and nutritional compositions. This study aimed to evaluate the effect of apricot pulp content on the stability and printability of bovine gelatin gels. Brix, pH, Texture Profile Analysis (TPA), and image analysis after 3D printing were measured. Bovine gelatin gels (5%) were formulated with different concentrations of apricot pulp (30%, 50%, and 70%), and cylinders of 3 cm in diameter and 1 cm in height were printed. An increase in firmness of the printed gel was observed with the rise in the pulp concentration. Concerning image analysis, it was observed that as the concentration of apricot pulp (AP) in the samples increased, there was minor deformation of the height dimension. There were no significant differences (p > 0.05) in pieces for the cylinder area, and all presented a 12% area deformation. From the results obtained, it can be said that the 70% apricot pulp sample has the best texture profile and is the sample with the slightest deformation.
3D graphic survey for heritage preservation based on the use of standards: The Church of the Immaculate, in Santa Eulalia del Campo
(Universitat Politècnica de València, 2024-12-31) Gil Piqueras, María Teresa; Rodriguez-Navarro, Pablo; Departamento de Expresión Gráfica Arquitectónica; Escuela Técnica Superior de Ingeniería de Edificación; Centro de Investigación en Arquitectura, Patrimonio y Gestion para el desarrollo Sostenible; Ministerio de Ciencia e Innovación
[EN] The methodology employed for the digital graphic survey of heritage has undergone significant advancements in recent years. The development of multi-image photogrammetry (SfM+IM), combined with the evolution of 3D laser scanning technology, has marked a major advancement in the digitalization of heritage. Today, the integrated use of these technologies allows for the creation of hyper-realistic three-dimensional models in a simple, accurate, and cost-effective manner, while also producing visually compelling results. The objective of this research is present the methodology applied in the comprehensive digital graphic survey of the Church of the Immaculate Conception, located in Santa Eulalia del Campo (Teruel) along with the graphical results, which adhere to the required representation standards. The focus of this graphic survey is on the descriptive and typological analysis of the building, serving as a preliminary step before the intervention project.
3D Point Cloud and GIS Approach to Assess Street Physical Attributes
(MDPI AG, 2024-06) Orozco Carpio, Patricio Rodrigo; Viñals Blasco, Mª José; López González, María Concepción; Departamento de Expresión Gráfica Arquitectónica; Departamento de Ingeniería Cartográfica Geodesia y Fotogrametría; Escuela Técnica Superior de Arquitectura; Centro de Investigación en Ingeniería Mecánica; Escuela Técnica Superior de Ingeniería de Edificación; Centro de Investigación en Métodos de Producción de Software - ProS; Centro de Investigación en Arquitectura, Patrimonio y Gestion para el desarrollo Sostenible; AGENCIA ESTATAL DE INVESTIGACION; Universitat Politècnica de València
[EN] The present research explores an innovative approach to objectively assessing urban streets attributes using 3D point clouds and Geographic Information Systems (GIS). Urban streets are vital components of cities, playing a significant role in the lives of their residents. Usually, the evaluation of some of their physical attributes has been subjective, but this study leverages 3D point clouds and digital terrain models (DTM) to provide a more objective perspective. This article undertakes a microurban analysis of basic physical characteristics (slope, width, and human scale) of a representative street in the historic centre of Valencia (Spain), utilizing 3D laser-scanned point clouds and GIS tools. Applying the proposed methodology, thematic maps were generated, facilitating the objective identification of areas with physical attributes more conducive to suitable pedestrian dynamics. This approach provides a comprehensive understanding of urban street attributes, emphasizing the importance of addressing their assessment through advanced digital technologies. Moreover, this versatile methodology has diverse applications, contributing to social sustainability by enhancing the quality of urban streets and open spaces.
3D-COFORM: Making 3D documentation an everyday choice for the cultural heritage sector
(Universitat Politècnica de València, 2011-05-20) Pitzalis, Denis; Kaminski, Jaime; Niccolucci, Franco; European Commission
[EN] This paper provides an overview of the 3D-COFORM project which began in December 2008 and aims to advance the state-of-the-art in 3D-digitsation and make 3D-documentation an everyday practical choice for digital documentation campaigns in the cultural heritage sector.
3D-printed gummies with programmable internal voids as delivery systems for customized amounts of micronutrients
(Elsevier, 2025-03) Matas Gil, Adrián; Derossi, Antonio; Martínez Monzó, Javier; Igual Ramo, Marta; García Segovia, Purificación; Caporizzi, Rossella; Zhang, Min; Severini, Carla; Departamento de Tecnología de Alimentos; Instituto Universitario de Ingeniería de Alimentos (FoodUPV); Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural; Agencia Estatal de Investigación; Universitat Politècnica de València
[EN] This paper explores the co-design and development of customizable 3D printed gummies as delivery systems for micronutrients. A virtual instrument, VI, enabling the consumers to select the main morphological properties and to indicate their own requirements of micronutrients was designed and developed. Such digital information was utilised to design gummies containing a void space to be filled with customised amounts of micronutrients. The starch-agar gel used for the printing experiments carried out at 50 degrees C through a narrow nozzle of 0.4 mm, showed a good printability performance obtaining a precise replica of the digital model. However, slight printing inaccuracies were observed through 2D/3D microtomographic images due to an improper solidification of the ink-gel during the closing movements of the voids. The 3D-printed gummies were described for the main texture properties showing low hardness (<6.87N), cohesiveness, and springiness which changed as a function of time.
3D4HERITAGE_Anti-aircraft defense Cullera [Dataset]
(Universitat Politècnica de València, 2024-11-23) Gil Piqueras, María Teresa; Rodríguez Navarro, Pablo; Departamento de Expresión Gráfica Arquitectónica; Escuela Técnica Superior de Ingeniería de Edificación; Centro de Investigación en Arquitectura, Patrimonio y Gestion para el desarrollo Sostenible; Agencia Estatal de Investigación
Graphic info: P1-Battery 3D4HERITAGE, pdf file, Battery floor plant; P2-Battery 3D4HERITAGE, pdf file, Powder magazine elevator; P2-Battery 3D4HERITAGE, pdf file, Command and Observation Post; 3D machine-gun nest, pdf file

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