Cristóbal González DíazPhysicist · Space Instrumentation & AIV

Space Payloads Department · INTA, Madrid

Cristóbal González Díaz

Physicist and instrumentation engineer working on cryogenic test facilities for space instrumentation. Twenty years of laboratory work across active vibration control, tyre dynamics, aeroacoustics and laboratory astrophysics.

Projects Publications
Journal papers
22
Conference contributions
45
EU projects
4
PhD
ISVR, 2007
Portrait of Cristóbal González Díaz
CurrentFICS · C2CC cryostatATHENA X-IFU ground testing at INTA European projectsFour Marie Curie projectsACOCTIA, TIRE-DYN, SMART STRUCTURES, EDSVS National and ESA-funded10 projectsJUICE ice properties, UV astrochemistry and more

About

Research profile

Cristóbal González Díaz is a physicist whose work spans instrumentation, automation, signal processing, data analysis and active control, applied to space, astrophysics, sound and vibration. He combines laboratory research with R&D project management, writes European research proposals and serves as an expert evaluator for the European Commission.

Since February 2025 he has been an instrumentation engineer in the Space Payloads Department of INTA (Instituto Nacional de Técnica Aeroespacial). As AIV and systems test engineer for the ATHENA X-IFU instrument and the FICS project, he leads the integration and verification of ground-support cryostats, runs leak-tightness and vacuum verification, and develops cryogenic thermal test protocols and LabVIEW data-acquisition software.

From 2017 to 2024 he worked at the Centro de Astrobiología (CSIC-INTA). He measured the thermal conductivity and calorimetry of frozen salt solutions for ESA’s JUICE mission, built a compact high-vacuum chamber to estimate ice porosity with ultrasound, and automated the ISAC ultra-high-vacuum chamber (base pressure 10⁻¹¹ mbar, cold finger at 8 K) used to study the photodesorption of interstellar ice analogues.

Before that he held a Marie Skłodowska-Curie Intra-European Fellowship at CSIC in Madrid (ACOCTIA), was an experienced researcher at the Goodyear Innovation Center in Luxembourg (TIRE-DYN) and at KU Leuven (SMART STRUCTURES), and completed his PhD at the Institute of Sound and Vibration Research in Southampton within the European Doctorate in Sound and Vibration Studies (EDSVS).

He works in Spanish, English and French.

Techniques

Cryogenic testingAIVCryostats (closed-cycle He, LN₂)Thermometry & temperature controlThermal conductivity & calorimetryLeak & vacuum testingUHV systemsFTIR · TPD · QMSRaman & UV/VUV spectroscopyLaser interferometryLaser Doppler vibrometryModal analysisOperational modal analysisActive vibration controlVehicle NVH testingHydroacousticsUltrasonicsSignal processingData acquisition automationLabVIEWMATLABFEMMSC Patran/NastranSolidWorksAutoCAD / InventorMetrolog X4LMS Test.LabBrüel & Kjær PULSE

Career

Experience

  1. 2025 –

    Instrumentation engineer Now

    Space Payloads Department, INTA · Madrid

    AIV and systems test engineer for the ATHENA X-IFU instrument and the FICS project (Integrated Insulation for Cryogenic Systems): ground-cryostat integration and verification, leak and vacuum testing, cryogenic thermal test protocols, LabVIEW data acquisition with Fluke 2638A and Lakeshore 224/336 controllers.

  2. 2024 – 2025

    Research assistant (Ayudante de Investigación de los OPI)

    Radio Frequency Area, INTA · Madrid

    Antenna Measurement and Radar Signature Laboratory: antenna and radar cross-section (RCS) measurements and RF characterisation in anechoic chambers.

  3. 2017 – 2024

    Senior R&D engineer, UHV specialist

    Centro de Astrobiología (CSIC-INTA), Department of Astrophysics · Madrid

    Thermal properties of ices for JUICE (ESA contract); ultrasonic porosity chamber; laser-interference ice thickness set-up; automation of the ISAC chamber and its cryostat. María de Maeztu fellow (2019–2022).

  4. 2013 – 2017

    Marie Skłodowska-Curie fellow, senior research fellow

    ITEFI, Consejo Superior de Investigaciones Científicas (CSIC) · Madrid

    Coordinator of the ACOCTIA fellowship on cavity-tone noise; automation and calibration of a 4.5 × 7.5 × 4.5 m hydroacoustic test tank.

  5. 2010 – 2012

    Staff engineer

    Tire Vehicle Mechanics, Goodyear Innovation Center · Luxembourg

    Experienced researcher in TIRE-DYN: new test set-up and experimental and numerical analysis of rolling-tyre dynamics.

  6. 2009 – 2010

    Associate academic staff

    PMA, Department of Mechanical Engineering, KU Leuven · Belgium

    Experienced researcher in SMART STRUCTURES: design and construction of a transmission suite for vibro-acoustic characterisation of lightweight panels (50–10 000 Hz).

  7. 2005 – 2009

    Research fellow

    Institute of Sound and Vibration Research, University of Southampton · UK

    PhD and postdoctoral research on active structural acoustic control, including decentralised velocity feedback on a Bombardier Dash-8 fuselage section. Administration of the EDSVS programme.

  8. 2002 – 2003

    Research intern

    ESPCI Paris, Laboratory of General Electronics

    Readout electronics for a multi-wire chamber (gamma camera) and a 20 MHz driver for a micro-channel plate.

Education

  • 2007PhD, Institute of Sound and Vibration Research, University of Southampton, with European Doctorate in Sound and Vibration Studies. Thesis: Active structural acoustic control smart panel with small scale proof mass actuators (ePrints Soton, British Library EThOS)
  • 2003D.E.A. (Master’s) in Electronics, Université Pierre et Marie Curie, Paris, with research at ESPCI
  • 2002Degree in Physics (Applied Physics), Universidad Autónoma de Madrid

Distinctions

  • 2023ANECA accreditation as Profesor Contratado Doctor
  • 2022I3 certificate for an outstanding research trajectory, Spanish Ministry of Science and Universities
  • 2016Marie Skłodowska-Curie Seal of Excellence for the proposal MetaSilence (750387). Certificate
  • 2015Marie Skłodowska-Curie Actions “IF fellow of the week”
  • 2012Superior Paper Award, 31st Conference on Tire Science and Technology
  • 2010Paper selected among the Highlights of 2010, Smart Materials and Structures
  • 2006Student commendation for outstanding paper and presentation, Institute of Acoustics Spring Conference

Evaluation and review

  • Expert evaluator for the European Commission: Clean Sky 2, Horizon 2020 and Horizon Europe
  • Rapporteur and evaluator for the Latvian State Education Development Agency
  • Evaluator for the Ministry of Education, Youth and Sports of the Czech Republic and the National Science Centre, Poland
  • Reviewer for Journal of Sound and Vibration, Applied Acoustics, Noise Control Engineering Journal, Journal of Applied Mechanics and ASME conferences

Supervision

  • 2022Co-supervisor, final-year project (TU Delft) on measuring interstellar ice analogue thickness with laser interferometry
  • 2012Co-supervision of a PhD student, Goodyear Innovation Center / KU Leuven
  • 2010Co-supervision of a PhD and a Master’s student, KU Leuven

Projects

Projects

From a Marie Curie training network to cryogenic test facilities for ATHENA X-IFU.

Current

FICS and the C2CC cryostat

Within the X-IFU consortium, INTA is building a 2 K ground cryostat to verify and validate the instrument’s focal-plane assembly before it is integrated in the flight unit. The C2CC (Cryostat 2K Core Calibration) was designed to calibrate the X-IFU X-ray detectors on ESA’s ATHENA mission; after the mission was reprogrammed it will become a permanent INTA facility open to the scientific community. Its pendulum-type inner structure has 90 K, 4 K and 2 K stages, cooled by three cryocoolers and a Joule-Thomson system, and hangs inside a steel shell on a pneumatic anti-vibration mount. Integration and verification are planned to finish by the end of 2026.

European projects

Four EU-funded Marie Curie projects

From PhD training network to individual fellowship.

FP7-PEOPLE-2011-IEF · Marie Curie Intra-European Fellowship

ACOCTIA

Active Control Of Cavity Tones In Aircraft

Reduction of airframe noise from landing-gear cavities: the tones produced by fluid-dynamic or fluid-resonant oscillation. The aim was to help meet ACARE’s environmental target of a 10 dB noise reduction per aircraft operation. The project combined micro-perforated linings with active control and validated them in an anechoic chamber.

Grant
301287
Dates
Nov 2013 – Jan 2016
EU contribution
€168,896
Role
Fellow and coordinator; wrote the proposal
Consortium
CSIC, ITEFI (Madrid)
Project archive CORDIS

FP7-PEOPLE-2009-IAPP · Industry-Academia Partnerships and Pathways

TIRE-DYN

Experimental and numerical analyses of the dynamic behaviour of rolling tyres to improve tyre modelling accuracy

Industry–academia partnership to understand how rolling changes tyre vibration, for noise and comfort. Cristóbal built a new test set-up for rolling-tyre dynamics, ran experimental and numerical analyses, and organised the first Tire-Dyn public workshop (Leuven, 2011).

Grant
251211
Dates
Sep 2010 – Aug 2014
EU contribution
€700,041
Role
Experienced researcher at the Goodyear Innovation Center, Luxembourg (2010–2012)
Consortium
KU Leuven (coordinator), Goodyear, LMS International
CORDIS

FP6 Marie Curie Research Training Network

SMART STRUCTURES

A computer aided engineering approach to smart structures design

Training network that brought smart materials research to system level for active noise and vibration control and vibration-based damage detection. Cristóbal designed and built a transmission suite to measure the insertion loss of lightweight panels under airborne and structure-borne excitation.

Grant
MRTN-CT-2006-035559
Dates
Jan 2007 – Dec 2010
EU contribution
€3,124,206
Role
Experienced researcher at KU Leuven, PMA (2009–2010)
Consortium
KU Leuven (coordinator) and 14 partners, including EADS, CIRA, Centro Ricerche Fiat, Fraunhofer ITWM, KTH, LMS and ISVR
CORDIS

FP6 Marie Curie Host Fellowships for Early Stage Research Training

EDSVS

European Doctorate in Sound and Vibration Studies

Doctoral training programme in sound and vibration that hosted 126 PhD students across eight European institutions. Cristóbal completed his PhD on active structural acoustic control within it and helped run the programme’s reporting to the European Commission and its website.

Grant
MEST-CT-2004-503675
Dates
Oct 2004 – Sep 2008
EU contribution
€2,875,343
Role
Early-stage researcher (PhD, 2005–2008) and programme administration
Consortium
ISVR, University of Southampton (coordinator), with Padova, KU Leuven, Ferrara, INSA Lyon, ONERA, DTU and Trinity College Dublin
CORDIS

National and ESA-funded projects

Research contracts and national grants

  1. 2021 – 2026
    FICS: Integrated Insulation for Cryogenic Systems PID2020-115325GB-C31 · MCIN/AEI/ERDF (EU) · INTA · €2,153,800 AIV engineer (since 2025)
    Summary

    INTA is part of the X-IFU consortium and built an elegant breadboard of the instrument’s cryostat, which holds the focal plane at 2 K. Building on that experience, IRAP and CNES asked INTA to develop a second cryostat to verify and validate the focal-plane assembly before it is integrated in the flight unit, the only opportunity to test the heart of X-IFU. The cryostat meets the flight unit’s insulation and cooling requirements without its mass and power limits. Its main challenges are isolating the focal-plane assembly from microvibrations, because heat dissipated in its supports by vibration becomes noise in the measurement; reproducing the flight cryostat’s insulation stages and thermally conditioning the harness to representative 2 K conditions for the X-ray filters; and providing higher electromagnetic attenuation than the flight unit, because there are far more electromagnetic disturbances on the ground than in space. The project also studies multifunctional structures that combine electromagnetic and thermal insulation with good mechanical properties. It also develops methods to characterise the electromagnetic and thermal behaviour of new aerospace materials, such as dielectrics and composites, under extreme temperature gradients.

  2. 2021 – 2024
    Ice-SPACE: Experimental study of astrophysical ice properties and processes PID2020-118974GB-C21 · MICINN · Centro de Astrobiología · PIs: G. M. Muñoz Caro (CAB), M. Á. Satorre (UPV Alcoy) Researcher
    Summary

    Coordinated laboratory study of the link between the properties of ice analogues (density, porosity, optical properties, binding energies) and the processes they undergo under heating or UV irradiation in interstellar, circumstellar and icy-moon conditions, building a laboratory database to interpret JWST observations of ices. Project page

  3. 2020 – 2021
    Thermal and dielectric properties of ices in support of future measurements of the Jovian icy moons (contract extension) ESA Contract 4000126441/19/ES/CM, CCN 1 · ESA, ESAC · PI: G. M. Muñoz Caro Researcher, ESA contractor: thermal conductivity and calorimetry measurements
    Summary

    Extension of the ESA contract to continue the electrical and thermal conductivity measurements, covering frozen salt solutions of interest for JUICE, in support of future radar measurements by JUICE and Europa Clipper. The thermal-conductivity results of both phases were published in MNRAS 510 (2022). Publication

  4. 2019 – 2020
    Thermal and dielectric properties of ices in support of future measurements of the Jovian icy moons ESA Contract 4000126441/19/ES/CM (RFP/3-15589/18/ES/CM) · ESA, ESAC · PI: G. M. Muñoz Caro Researcher, ESA contractor: design and construction of the thermal conductivity and calorimetry set-up
    Summary

    Initial phase of the ESA contract to measure the thermal conductivity and dielectric properties of frozen salt solutions representative of the ice shells of Jupiter’s moons, to support future radar measurements by the JUICE and Europa Clipper missions. Work covered ice growth and measurements in climatic chambers, preparation and characterisation of Europa analogue specimens at high pressure, and electrical and thermal conductivity measurements. The thermal-conductivity results were published in MNRAS 510 (2022). Publication

  5. 2018 – 2023
    María de Maeztu Unit of Excellence, Centro de Astrobiología MDM-2017-0737 · AEI · Centro de Astrobiología María de Maeztu fellow (2019–2022)
    Summary

    Excellence programme on the origin, presence and influence of life in the universe, organised around planetology and habitability, molecular evolution, advanced instrumentation, and astrophysics and astrochemistry. Project page

  6. 2018 – 2020
    IceUs: Porosity of astrophysical ices estimated with ultrasonic techniques AYA2017-91062-EXP · Spanish Ministry of Science · ITEFI (CSIC) and CAB · PI: M. González Hernández Researcher: designed and built the compact high-vacuum chamber for ultrasonic measurements
    Summary

    Ice porosity records how an ice formed and evolved, and it affects both chemistry and infrared observations. The project developed a method to estimate porosity from an ultrasonic pulse sent through a layer about 10 µm thick, deposited below 10 K in an ultra-high-vacuum chamber, first on water ice and then on little-studied ices such as CO. Project page

  7. 2018 – 2020
    GENUSROB: Ultrasonic imaging of complex-geometry parts with industrial robots CSIC 20175RC949 · MINECO · ITEFI with TecniTest NDT · PI: J. J. Anaya Velayos Researcher (2019): acoustic signal processing, measurement-system design, systems modelling
    Summary

    Commercial industrial robots are precise enough for non-destructive testing, but as closed systems they cannot synchronise their motion with data acquisition. The project used an independent external system to synchronise any industrial robot with any ultrasonic imaging system. Project page

  8. 2016 – 2018
    UV irradiation of carbonaceous cosmic dust analogues PICS2015FR7 · CSIC and CNRS · Centro de Astrobiología, with IAS and ISMO (France) · €10,000 (CSIC share) · PI: G. M. Muñoz Caro Researcher
  9. 2014 – 2020
    Processes in astrophysical ices AYA2014-60585-P, AYA2017-85322-R · Spanish Ministry · Centro de Astrobiología · PI: G. M. Muñoz Caro Researcher: automation and calibration of data acquisition and processing
    Summary

    Experiments in the ISAC ultra-high-vacuum chamber on the UV photodesorption and photochemistry of interstellar ice analogues, in collaboration with Université Pierre et Marie Curie and the Institut d’Astrophysique Spatiale (France). Automating acquisition and processing shortened experiments and allowed the measured dissociation and desorption rates to be compared across molecular components.

  10. 2014 – 2016
    Detection, control and actuation on bacterial biofilms with piezoelectric transducers DPI2013-46915-C2-1-R · Spanish Ministry · ITEFI (CSIC) · PIs: F. Montero de Espinosa, L. Elvira Segura Researcher: FEM modelling and vibration measurements
    Summary

    Finite-element model of the vibration of bimorph piezoelectric membranes and of their coupling in a water-loaded array, validated with laser-interferometry vibration measurements and 3D hydrophone scans of the acoustic pressure field.

Output

Publications

Articles, conference contributions, reports and theses. Type to filter the list as you go.

  • 2026
    Desarrollo del criostato C2CC (Cryostat 2K Core Calibration) R. Urquí, J. Azcue, M. Fernández Sánchez, C. González Díaz, F. Gutiérrez Prieto, J. Torres, M. Martínez del Campo, R. Sanz VI Congreso de Ingeniería Espacial (EIE2026)
    Conference
    Summary

    C2CC is a ground cryostat originally designed to calibrate the X-ray detectors of the X-IFU instrument on ESA’s ATHENA mission. After the mission was reprogrammed, it will become a permanent INTA facility open to the scientific community. The engineering challenges are thermal insulation and ultra-high vacuum, a mean temperature of 2 K, and isolation from parasitic loads caused by vibration and electromagnetic disturbances. A room-temperature steel shell rests on a pneumatic anti-vibration system and holds a pendulum-type inner structure with three stages (90 K, 4 K and 2 K), cooled by three cryocoolers, one of them coupled to a Joule-Thomson system to reach 2 K. Integration follows three phases: the outer vacuum shell (phase 1) is complete; phase 2 adds the cryogenic and Joule-Thomson systems; phase 3 integrates the inner pendulum, thermal straps, heat switches, sensors and harness. Vacuum tests with a rotary pump reached 5 × 10⁻² mbar, and turbomolecular-pump tests targeting 10⁻⁶ mbar are under way. Integration and verification are planned to finish before the end of 2026. Funded by project PID2020-115325GB-C31 (MCIN/AEI).

  • 2025
    Synthesis of new hexamethylenetetramine-based products (HMT-R) in UV-irradiated pre-cometary ice analogues C. del Burgo Olivares, H. Carrascosa, G. M. Muñoz Caro, J. Muñoz-Arnanz, C. González Díaz, Y.-J. Chen Astronomy & Astrophysics 698, A285
    JournalDOI
    Summary

    Laboratory UV irradiation of H2O:CH3OH:NH3 ices at 80 K produces organic residues. Gas chromatography–mass spectrometry of these residues reveals new derivatives of hexamethylenetetramine (HMT), whose side groups trace the radicals present in the ice. Some derivatives match species found in the Murchison meteorite, suggesting new molecules to look for in pristine Solar System bodies.

  • 2025
    Infrared spectroscopy of astrophysical ice analogues at oblique angles C. González Díaz, H. Carrascosa, G. M. Muñoz Caro Monthly Notices of the Royal Astronomical Society 538(3), 1906–1920
    JournalDOI arXiv
    Summary

    Shows how the angle of the infrared beam on an ice sample affects measured band intensities and column densities. Effective refractive indices are derived for several astrophysical ice components, and the angle is also found to alter band profiles related to ice structure. The results give a more accurate column-density estimate for setups that cannot use normal incidence.

  • 2025
    INTA developments for a 2K low vibration ground cryostat J. Torres, M. Martínez del Campo, P. Morata, Á. Díaz Robisco, M. Fernández Sánchez, L. Bastide, S. Pérez Barrio, C. González Díaz, A. Sánchez, M. Reina 9th European Space Cryogenics Workshop, CEA-Grenoble, France, 24–26 June 2025
    Conference
    Summary

    INTA has designed and is integrating a 4 K low-vibration ground cryostat, a key facility to enhance the cryogenic thermomechanical capabilities of the Space Payloads Department, enabling the characterization of cryogenic instruments, components and new materials for space applications. To meet the stringent requirements of the 4 K facility, a test-bench cryostat has also been designed and manufactured to characterize cryocoolers, test development prototypes and validate components before their integration into the main cryostat. Both systems were presented at the workshop, highlighting the design, manufacturing and testing of ultra-flexible thermal straps and passive thermal switches, together with a custom Joule-Thomson 2 K pot. This component is tailored for the 4 K main facility cryostat to extend its operational range, reaching 2 K with a 150 mW thermal refrigeration capacity. Supported by Grant PID2020-115325GB-C31 (MCIN/AEI).

  • 2024
    Characterization of carbon dioxide on Ganymede and Europa supported by experiments: effects of temperature, porosity, and mixing with water L. Schiltz, B. Escribano, G. M. Muñoz Caro, S. Cazaux, C. del Burgo Olivares, H. Carrascosa, I. Boshuizen, C. González Díaz, Y.-J. Chen, B. M. Giuliano, P. Caselli Astronomy & Astrophysics 688, A155
    JournalDOI arXiv
    Summary

    Laboratory infrared and desorption experiments on pure CO2 ice and CO2–water mixtures explain the shifted CO2 band seen by JWST on Europa and Ganymede. The band is assigned to CO2 in pores or cracks and to CO2 embedded in water ice, and the moons' spectra show how these contributions vary with region and temperature.

  • 2024
    Characterization of carbon dioxide (CO₂) on Ganymede and Europa supported by experiments: the effect of temperature, porosity and mixing with water S. Cazaux, L. Schiltz, B. Escribano, G. M. Muñoz Caro, C. del Burgo Olivares, H. Carrascosa, C. González Díaz, Y.-J. Chen, B. M. Giuliano, P. Caselli, I. Boshuizen Europlanet Science Congress 2024, EPSC2024-601
    ConferenceAbstract
  • 2022
    Density and infrared band strength of interstellar carbon monoxide (CO) ice analogues C. González Díaz, H. Carrascosa, G. M. Muñoz Caro, M. Satorre, Y.-J. Chen Monthly Notices of the Royal Astronomical Society 517(4), 5744–5755
    JournalDOI
    Summary

    Estimates the density of CO ice as a function of deposition temperature, using infrared spectroscopy, laser interference and mass spectrometry. Only minor variations are found, and the method can be applied to other ices. The infrared band strength used to derive CO column densities is revisited.

  • 2022
    Thermal conductivity measurements of macroscopic frozen salt ice analogs of Jovian icy moons in support of the planned JUICE mission C. González Díaz, S. Aparicio Secanellas, G. M. Muñoz Caro, J. J. Anaya Velayos, H. Carrascosa, M. G. Hernández, V. Muñoz-Iglesias, Á. Marcos-Fernández, O. Prieto-Ballesteros, R. Lorente, O. Witasse, N. Altobelli Monthly Notices of the Royal Astronomical Society 510(3), 4166–4179
    JournalDOI Erratum
    Summary

    Measures the thermal conductivity of frozen NaCl, MgSO4, Na2SO4 and MgCl2 solutions between 0 and −70 °C, together with calorimetry that reveals phase changes. The data are meant to help constrain the composition and temperature of the icy crusts of Ganymede, Europa and Callisto, in support of JUICE and Europa Clipper.

  • 2022
    UV and X-ray processing of ice mantles in planet-forming disks: photodesorption of species and COMs formation G. M. Muñoz Caro, H. Carrascosa, C. González Díaz, C. del Burgo, S. Cazaux, P. Caselli, Y.-J. Chen From Clouds to Planets II: The Astrochemical Link, Harnack Haus, Berlin, 3–7 Oct 2022
    ConferenceInvited talk
  • 2022
    Photodesorption experiments of sulfur species G. M. Muñoz Caro, H. Carrascosa, C. González Díaz, C. del Burgo, S. Cazaux, P. Caselli, Y.-J. Chen, A. Fuente, D. Navarro-Almaida, P. Rivière-Marichalar Real Observatorio, Madrid, 22–24 June 2022
    ConferenceInvited talk
  • 2021
    The intriguing behavior of ultraviolet photodesorption and color temperature of astrophysical CO ice analogs: a possible indication of molecular disorder H. Carrascosa, G. M. Muñoz Caro, C. González Díaz, J. Suevos, Y.-J. Chen The Astrophysical Journal 916, 120
    JournalDOI
    Summary

    Uses colorimetry to show that the structure of CO ice, which depends on its deposition temperature, changes its colour from brown to transparent. This colour behaviour follows the trend of CO photodesorption, linking the two and offering a way to monitor structural changes in molecular solids. A brownish tone on icy bodies need not indicate organic matter.

  • 2021
    Ultrasonic propagation in liquid and ice water drops. Effect of porosity M. Mendonck, S. Aparicio, C. González Díaz, M. G. Hernández, G. M. Muñoz Caro, J. J. Anaya, S. Cazaux Sensors 21(14), 4790
    JournalDOI
    Summary

    Studies ultrasonic wave propagation in liquid and frozen water drops, with experiments and numerical simulations. Even low porosity in the ice strongly attenuates ultrasound, which explains why ultrasonic pulses could not be transmitted through porous interstellar and cometary ice analogues.

  • 2021
    2-Aminooxazole in astrophysical environments: IR spectra and destruction cross sections for energetic processing B. Maté, R. Carrasco-Herrera, V. Timón, I. Tanarro, V. J. Herrero, H. Carrascosa, G. M. Muñoz Caro, C. González Díaz, I. Jiménez-Serra The Astrophysical Journal 909, 123
    JournalDOI
    Summary

    Provides infrared and UV spectra and band strengths of 2-aminooxazole, a prebiotic-chemistry intermediate, under astrophysical conditions. Destruction cross sections under UV photons and electrons are measured to estimate its half-life, indicating it could survive in dense clouds and within dust agglomerates but not on exposed cold surfaces.

  • 2021
    Synthesis of the first nitrogen-heterocycles in interstellar ice analogues containing methylamine (CH₃NH₂) exposed to UV radiation: formation of trimethylentriamine (TMT) and hexamethylentetramine (HMT) H. Carrascosa, C. González Díaz, G. M. Muñoz Caro, P. C. Gómez, M. L. Sanz Monthly Notices of the Royal Astronomical Society 506(1), 791–805
    JournalDOI
    Summary

    Simulates UV irradiation of methylamine-bearing interstellar ice analogues in an ultrahigh-vacuum chamber. Many species are formed, including several already detected in space. On warming, trimethylenetriamine forms, followed by hexamethylenetetramine above about 230 K, a route to N-heterocycles of prebiotic interest.

  • 2021
    Formation of N-heterocycles and S-chains in UV-photoprocessed interstellar ice analogs G. M. Muñoz Caro, H. Carrascosa, C. González-Díaz, S. Cazaux, P. Caselli, A. Ciaravella, A. Jiménez-Escobar, C. Cecchi-Pestellini, Y.-J. Chen Laboratory Astrophysics Workshop 2021, Dornburg Castle, Jena, Germany, 22–24 Nov 2021
    ConferenceInvited talk
  • 2021
    Measurements of thermal properties of ices in support to future radar measurements at the Jupiter moons C. González Díaz, G. M. Muñoz Caro, H. Carrascosa de Lucas, O. Prieto-Ballesteros, V. Muñoz-Iglesias, S. Aparicio Secanellas, M. González Hernández, J. J. Anaya Velayos, R. Lorente, O. Witasse, N. Altobelli JUICE Science Working Team Meeting #18, 21 Oct 2021
    ConferenceOral
  • 2021
    Dielectric properties of binary aqueous systems with sulphates, chlorides and volatiles for subsurface radar sounding O. Prieto-Ballesteros, O. Ercilla Herrero, J. Sánchez Benítez, V. Muñoz-Iglesias, A. Rivera-Calzada, G. M. Muñoz Caro, C. González Díaz, R. Lorente, N. Altobelli, O. Witasse JUICE Science Working Team Meeting #18, 21 Oct 2021
    ConferenceOral
  • 2021
    Simulations and laboratory experiments results in preparation for the JUICE mission: focus on surface weathering by micrometeoroid impact C. Vallat, R. Lorente, N. Altobelli, D. Koschny, J. Schmidt, X. Liu, K. Fiege, M. Trieloff, A. Mocker, R. Srama, G. M. Muñoz Caro, C. González Díaz, O. Prieto-Ballesteros SSW 2021
    ConferencePoster
  • 2021
    Thermal conductivity measurements of frozen salt solutions in Jovian moons to support future JUICE mission C. González Díaz, G. M. Muñoz Caro, H. Carrascosa de Lucas, S. Aparicio Secanellas, M. González Hernández, J. J. Anaya Velayos, G. Anaya Catalán, O. Prieto-Ballesteros, V. Muñoz-Iglesias, O. Ercilla Herrero, R. Lorente, N. Altobelli, O. Witasse Europlanet Science Congress 2021, EPSC2021-714
    ConferenceOralAbstract
  • 2021
    Dielectric properties of binary aqueous systems with sulfates, chlorides, and volatiles for subsurface radar sounding O. Prieto-Ballesteros, O. Ercilla Herrero, J. Sánchez Benítez, V. Muñoz-Iglesias, A. Rivera-Calzada, G. Muñoz-Caro, C. González Díaz, R. Lorente, N. Altobelli, O. Witasse Europlanet Science Congress 2021, EPSC2021-467
    ConferenceOralAbstract
  • 2021
    Photon and thermal processing of CH₃NH₂-bearing ices: synthesis of prebiotic species at low temperature and N-heterocycles during warm-up H. Carrascosa, C. González Díaz, G. M. Muñoz Caro, P. C. Gómez, M. L. Sanz Europlanet Science Congress 2021, EPSC2021-51
    ConferenceOralAbstract
  • 2020
    Thermal conductivity of salt-bearing ice analogs in Jovian moons to support future JUICE mission C. González Díaz, G. M. Muñoz Caro, H. Carrascosa de Lucas, S. Aparicio Secanellas, M. González Hernández, J. J. Anaya Velayos, G. Anaya Catalán, O. Prieto-Ballesteros, V. Muñoz-Iglesias, O. Ercilla Herrero, J. Sánchez-Benítez, A. Rivera-Calzada, R. Lorente, N. Altobelli, A. Solomonidou, C. Vallat, O. Witasse Europlanet Science Congress 2020, EPSC2020-418
    ConferenceOralAbstract
  • 2020
    Dielectric properties of aqueous solutions, amorphous phases and hydrated minerals in support for future radar measurements of Jovian icy moons V. Muñoz-Iglesias, O. Prieto-Ballesteros, O. Ercilla Herrero, J. Sánchez-Benítez, A. Rivera-Calzada, G. M. Muñoz Caro, C. González Díaz, H. Carrascosa de Lucas, S. Aparicio Secanellas, M. González Hernández, J. J. Anaya Velayos, G. Anaya Catalán, R. Lorente, N. Altobelli, A. Solomonidou, C. Vallat, O. Witasse Europlanet Science Congress 2020, EPSC2020-205
    ConferenceOralAbstract
  • 2020
    Measurements of dielectric properties of ices in support to future radar measurements of Jovian icy moons A. Solomonidou, R. Lorente, G. M. Muñoz Caro, C. Vallat, N. Altobelli, O. Witasse, A. Coustenis, R. Lopes, A. Le Gall, C. Elachi, O. Prieto-Ballesteros, V. Muñoz-Iglesias, C. González Díaz Europlanet Science Congress 2020, EPSC2020-11
    ConferencePosterAbstract
  • 2020
    Measurements of the thermal conductivity properties of salt-bearing ice analogs in Jovian moons to support future JUICE mission C. González Díaz, G. M. Muñoz Caro, H. Carrascosa de Lucas, S. Aparicio Secanellas, M. González Hernández, J. J. Anaya Velayos, et al. Virtual EANA 2020, 27–28 Aug 2020
    ConferenceOral
  • 2020
    Thermal conductivity measurements of salt-bearing ice analogs for the Jovian moons to interpret future JUICE mission C. González Díaz, G. M. Muñoz Caro, H. Carrascosa de Lucas, S. Aparicio Secanellas, M. González Hernández, J. J. Anaya Velayos, et al. XIV.0 Scientific Meeting of the Spanish Astronomical Society (virtual), 13–15 July 2020
    ConferenceOralMeeting
  • 2020
    Measurements of thermal and dielectric properties of ices in support to future radar measurements of Jovian icy moons O. Prieto-Ballesteros, G. M. Muñoz Caro, V. Muñoz-Iglesias, C. González Díaz, et al. ESAC Seminars 2020 (virtual), 30 April 2020
    ConferenceSeminar
  • 2019
    Characterizing interstellar medium, planetary surface and deep environments by spectroscopic techniques using unique simulation chambers at CAB E. Mateo-Martí, O. Prieto-Ballesteros, G. Muñoz Caro, C. González-Díaz, V. Muñoz-Iglesias, S. Gálvez-Martínez Life 9, 72
    JournalDOI
    Summary

    Describes simulation chambers that combine vacuum and high-pressure technology to reproduce interstellar, planetary-atmosphere and high-pressure environments. With in situ spectroscopy and mass spectrometry, they are used to study astrobiologically relevant samples, and the paper reviews their applications.

  • 2019
    X-ray versus UV irradiation of astrophysical ice analogs leading to formation of complex organic molecules G. M. Muñoz Caro, A. Ciaravella, A. Jiménez-Escobar, C. Cecchi-Pestellini, C. González-Díaz, Y.-J. Chen ACS Earth and Space Chemistry 3(10), 2138–2157
    JournalDOI
    Summary

    Compares the formation of complex organic molecules in ices processed by X-rays and by UV photons, combining earlier X-ray work with new UV experiments. Both produce a wide range of molecules, including glycine, formamide and acetaldehyde, similar to those detected by Rosetta at comet 67P.

  • 2019
    Accretion and photodesorption of CO ice as a function of the incident angle of deposition C. González Díaz, H. Carrascosa de Lucas, S. Aparicio, G. M. Muñoz Caro, N.-E. Sie, L.-C. Hsiao, S. Cazaux, Y.-J. Chen Monthly Notices of the Royal Astronomical Society 486(4), 5519–5525
    JournalDOI
    Summary

    Explores how the angle at which CO gas is deposited affects the structure of the ice and its UV photodesorption rate. Photodesorption is stable up to 45° and peaks near 70°, which resembles the angle dependence of water-ice surface area, suggesting that ice morphology controls the process.

  • 2019
    X-ray versus UV irradiation of astrophysical ice analogs leading to COMs formation G. M. Muñoz Caro, A. Ciaravella, A. Jiménez-Escobar, C. Cecchi-Pestellini, C. González Díaz, Y.-J. Chen Bad Honnef, 2019
    Conference
  • 2019
    Acreción y fotodesorción de hielo de CO en función del ángulo de deposición G. M. Muñoz Caro, C. González Díaz, H. Carrascosa de Lucas, S. Aparicio, N.-E. Sie, L.-C. Hsiao, S. Cazaux, Y.-J. Chen Astrophysics Laboratory on Cosmic Organics and Ices (I-ALCOI), Alcoi, 21–23 May 2019
    ConferenceInvited talk
  • 2017
    CO depletion: a microscopic perspective S. Cazaux, R. Martín-Doménech, Y. J. Chen, G. M. Muñoz Caro, C. González Díaz The Astrophysical Journal 849(2), 80
    JournalDOI
    Summary

    Combines laboratory experiments and Kinetic Monte Carlo simulations to study CO accretion onto and desorption from water ice. CO binds with a wide range of energies depending on how it was deposited, so weakly bound CO is easily released and CO depletion in pre-stellar cores is less important than previously thought.

  • 2017
    Thorough research of airframes to decrease noise pollution from aircraft C. González Díaz, P. Cobo, F. Montero de Espinosa MCAA Conference and General Assembly, Salamanca, 24–25 March 2017
    ConferenceACOCTIAPoster (PDF)
  • 2017
    Accretion and desorption of CO C. González Díaz, S. Cazaux, R. Martín-Doménech, Y.-J. Chen, G. M. Muñoz Caro International Dust and Ice Particles Spectroscopy and Scattering Workshop (DIPSS), Granada, 25–28 Sept 2017
    Conference
  • 2016
    Dynamic behaviour of a rolling tyre: experimental and numerical analyses C. González Díaz, P. Kindt, J. Middelberg, S. Vercammen, C. Thiry, R. Close, J. Leyssens Journal of Sound and Vibration 364, 147–164
    JournalDOI
    Summary

    Experimental and numerical study of how rotation changes tyre dynamics, carried out within the TIRE-DYN project with KU Leuven and LMS International. The effect is quantified for different loads, inflation pressures and rotation speeds, to support the design of tyres with lower tyre/road noise.

  • 2016
    Acoustic resonances in a 3D open cavity with non-parallel walls S. Ortiz, L. González, C. González Díaz, P. Svensson, P. Cobo Journal of Sound and Vibration 363, 181–198
    JournalACOCTIADOI
    Summary

    Extends the image source model to an open cavity with non-parallel walls by adding first-order edge diffraction. The model computes impulse and frequency responses inside and outside the cavity. Predicted resonance frequencies agree with finite-element results within 1.6% and with measurements within 2.7%, against 5.7% for the pure image source model.

  • 2015
    Acoustic resonance frequencies of an open cavity with non-symmetric and non-parallel walls C. González Díaz, P. Cobo 22nd International Congress on Sound and Vibration (ICSV22), Florence, 12–16 July 2015
    ConferenceACOCTIAPDF
  • 2014
    Attenuating open cavity tones by lining its walls with microperforated panels S. Ortiz, C. González Díaz, P. Cobo, F. Montero de Espinosa Noise Control Engineering Journal 62(3), 145–151
    JournalACOCTIADOI
    Summary

    Reports the reduction of resonance tones in an open cavity under grazing flow by lining its walls with microperforated panels made by an infiltration technique, a low-cost absorber suited to flow conditions.

  • 2014
    Atenuación de los tonos acústicos de una cavidad abierta recubriendo sus paredes con paneles microperforados C. González Díaz, S. Ortiz, P. Cobo, F. Montero de Espinosa IX Congreso Iberoamericano de Acústica (FIA2014), Valdivia, Chile, 1–3 Dec 2014
    ConferenceACOCTIAPDF
  • 2014
    Attenuation of acoustic resonances in an inclined open cavity using micro-perforated panels C. González Díaz, S. Ortiz, P. Cobo Inter-Noise 2014, Melbourne, 16–19 Nov 2014
    ConferenceACOCTIAPDF
  • 2014
    Attenuation of acoustic resonances in an open cavity using micro-perforated panels (MPP) C. González Díaz, S. Ortiz, P. Cobo, F. Montero de Espinosa Marie Skłodowska-Curie Conference, ESOF 2014, Copenhagen, 19–20 June 2014
    ConferenceACOCTIAPoster (PDF)
  • 2014
    Synopsis of experimental and numerical tire dynamic characterization S. Vercammen, P. Kindt, C. González Díaz, W. Desmet FISITA 2014 World Automotive Congress, Maastricht, 2–6 June 2014
    ConferencePDF
  • 2014
    Acoustic field in a cubic open cavity lined with MPPs S. Ortiz, C. González Díaz, P. Cobo Technical Report, Environmental Acoustics Group, ITEFI, CSIC, January 2014
    ReportACOCTIAPDF
  • 2013
    Effects of rotation on the tire dynamic behavior: experimental and numerical analyses P. Kindt, C. González Díaz, S. Vercammen, C. Thiry, J. Middelberg, B. Kimble, J. Leyssens Tire Science and Technology 41(4), 248–260
    JournalDOI
    Summary

    Combines experiments and numerical analysis, within the Tire-Dyn project, to quantify how rotation affects tire dynamics under different loads and speeds. The physical phenomena behind the observed rotation effects are described.

  • 2013
    Analyses on the effects of rolling on the tire dynamics S. Vercammen, P. Kindt, C. González Díaz, W. Desmet Inter-Noise 2013, Innsbruck, 15–18 Sept 2013
    ConferencePDF
  • 2013
    Experimental and numerical analyses of the rotating tire dynamic behavior P. Kindt, C. González Díaz, S. Vercammen, C. Thiry, J. Middelberg, J. Leyssens, R. Close AIA-DAGA 2013 Conference on Acoustics, Merano, 18–21 March 2013
    Conference
  • 2012
    Experimental and numerical characterization of the dynamic behaviour of a rolling tyre S. Vercammen, C. González Díaz PEOPLE 2012, Marie Skłodowska-Curie Actions, Lefkosia, Cyprus, 5–6 Nov 2012
    ConferencePoster (PDF)
  • 2012
    Numerical prediction of the dynamic behaviour of rolling tires C. González Díaz, P. Kindt, S. Vercammen, J. Middelberg, C. Thiry, J. Leyssens ISMA 2012 International Conference on Noise and Vibration Engineering, Leuven, 17–19 Sept 2012
    ConferencePDF
  • 2012
    Experimental characterization of the dynamic behaviour of rolling tires S. Vercammen, C. González Díaz, P. Kindt, J. Middelberg, C. Thiry, J. Leyssens ISMA 2012 International Conference on Noise and Vibration Engineering, Leuven, 17–19 Sept 2012
    ConferencePDF
  • 2012
    Effects of rotation on the tire dynamic behavior: experimental and numerical analyses P. Kindt, C. González Díaz, S. Vercammen, C. Thiry, J. Middelberg, B. Kimble, J. Leyssens 31st Conference on Tire Science and Technology, Akron, OH, 18–19 Sept 2012
    ConferenceSuperior Paper AwardAbstract Award
  • 2012
    Dynamic behaviour of rolling tires under different operating conditions S. Vercammen, C. González Díaz, P. Kindt, J. Middelberg, C. Thiry, J. Leyssens ASME Noise Control and Acoustics Division Conference at Inter-Noise 2012, New York, 19–22 Aug 2012
    ConferenceDOI
  • 2012
    Effects of rotation on the tyre dynamic behaviour under different operating conditions C. González Díaz, P. Kindt, S. Vercammen, J. Middelberg, C. Thiry, J. Leyssens Euronoise 2012, 9th European Conference on Noise Control, Prague, 10–13 June 2012
    ConferencePDF
  • 2011
    First Tire-Dyn testing results: wavenumber plots on a static and rotating tire C. González Díaz, P. Kindt, J. Middelberg First Tire-Dyn public workshop, KU Leuven, 22 Sept 2011
    ConferencePDF
  • 2011
    Experimental characterisation of the dynamic behaviour of rolling tires for noise and comfort applications P. Kindt, C. González Díaz, J. Middelberg, B. Pluymers, P. Sas, W. Desmet, G. Rocca, B. Peeters 7th Intelligent Tire Technology Conference, Darmstadt, 26–28 Sept 2011
    ConferencePDF
  • 2011
    Indoor vibration testing for high-frequency modal characterization of tyres G. Rocca, C. González Díaz, P. Kindt, J. M. Middelberg, B. Peeters, H. Van der Auweraer ASME 2011 International Design Engineering Technical Conferences, Vol. 8, 849–859, Washington DC, 28–31 Aug 2011
    ConferenceDOI
  • 2011
    Experimental study for high-frequency modal characterization of tires G. Rocca, C. González Díaz, P. Kindt, J. Middelberg, B. Peeters 18th International Congress on Sound and Vibration (ICSV18), Rio de Janeiro, 10–14 July 2011
    ConferencePDF
  • 2011
    Experimental characterization of the dynamic behaviour of the tires in static and rolling conditions G. Rocca, C. González Díaz, J. Middelberg, P. Kindt, B. Peeters International Conference on Structural Engineering Dynamics (ICEDyn 2011), Tavira, 20–22 June 2011
    ConferencePDF
  • 2010
    Downscaling of proof mass electrodynamic actuators for decentralized velocity feedback control on a panel P. Gardonio, C. González Díaz Smart Materials and Structures 19(2), 025004
    JournalSelected among the journal's Highlights of 2010DOI
    Summary

    Simulation study of downscaling electrodynamic proof-mass actuators for decentralised velocity feedback on a thin panel. Scaling laws for the key actuator properties are given, and control performance improves with more units until the shrinking gain margin of large arrays of small actuators reverses the trend.

  • 2010
    Transmission suite design for vibro-acoustic characterization of lightweight panels C. González Díaz, M. Vivolo, B. Pluymers, D. Vandepitte, W. Desmet ISMA 2010 International Conference on Noise and Vibration Engineering, Leuven, 20–22 Sept 2010
    ConferencePDF Poster
  • 2010
    Design and implementation of a transmission suite to characterise the vibro-acoustic properties of lightweight materials and structures C. González Díaz 7th Marie Curie RTN Smart Structures Workshop, KTH, Stockholm, 10–11 June 2010
    ConferencePDF
  • 2009
    Downscaling of decentralised feedback control units for active vibration control P. Gardonio, C. González Díaz ACTIVE 2009, Ottawa, 20–22 Aug 2009
    ConferencePDF
  • 2009
    BOMBARDIER Dash-8 Q400 fuselage section with five decentralised velocity feedback control units C. González Díaz, P. Gardonio ISVR Technical Memorandum No. 983, University of Southampton
    ReportPDF
  • 2008
    Experimental tests on smart panels for the reduction of sound radiation P. Gardonio, C. González Díaz, N. Alujević, Y. Aoki The Journal of the Acoustical Society of America 123, 3870
    JournalDOI
    Summary

    Comparative experimental study of four smart panels with decentralised velocity feedback units (piezoelectric patches or electrodynamic actuators), designed to add active damping and reduce low-frequency vibration and sound radiation.

  • 2008
    Active damping control unit using a small scale proof mass electrodynamic actuator C. González Díaz, C. Paulitsch, P. Gardonio The Journal of the Acoustical Society of America 124(2), 886–897
    JournalDOI
    Summary

    Presents the design and testing of a small-scale proof-mass electrodynamic actuator for velocity feedback on a thin panel, with a stability–performance formula for downscaling effects. Vibration reductions of 5 to 10 dB are measured between 80 and 250 Hz.

  • 2008
    Smart panel with active damping units. Implementation of decentralized control C. González Díaz, C. Paulitsch, P. Gardonio The Journal of the Acoustical Society of America 124(2), 898–910
    JournalDOI
    Summary

    Second part of a study of a smart panel with five decentralised velocity feedback units. Stability is assessed with the generalised Nyquist criterion, and experiments show reductions of up to 10 dB in vibration and sound radiation below about 250 Hz.

  • 2007
    Feedback control laws for proof-mass electrodynamic actuators C. González Díaz, P. Gardonio Smart Materials and Structures 16(5), 1766–1783
    JournalDOI
    Summary

    Simulation study of five decentralised feedback units, each a proof-mass actuator with a velocity sensor, mounted on a panel. Proportional control gives effective active damping, PID control mitigates spillover, and integral and derivative control mainly shift resonances and show stability problems.

  • 2007
    Introduction to active control of sound radiation and transmission (Chapter 9) C. González Díaz, with F. J. Fahy and P. Gardonio Sound and Structural Vibration: Radiation, Transmission and Response, 2nd ed. London: Academic Press
    Book chapterGoogle Books
  • 2007
    Active structural acoustic control smart panel with small scale proof mass actuators C. González Díaz PhD thesis, ISVR, University of Southampton
    ThesisePrints EThOS
    Summary

    This thesis presents a comprehensive study of decentralised feedback control on a smart panel with electrodynamic proof mass actuators and velocity sensors at their footprints. The aim is to provide guidance for the design of light, simple, robust and low cost, control units which can be attached in large numbers to flexible structures in order to control their spatially averaged response and sound radiation at low audio-frequencies. The first part of the thesis is focused on the identification of simple and effective single channel feedback control laws. In particular the stability properties and control performance produced by Proportional, Integral, Derivative, PI, PD, PID feedback control laws are assessed with reference to two simple problems where a single degrees of freedom system is controlled by an ideal reactive force actuator and by a practical proof mass actuator. Following this introductory study, the implementation of decentralised feedback control on a smart panel with five control units using proof mass electrodynamic actuators is investigated for the best two cases of Proportional and PID control. In parallel the practical design of small scale control units is explored. In particular the scaling of the stability and control performance properties of a single control unit that implements proportional control is examined using a stability–control formula. The final part of the thesis presents the stability and control performance tests carried out on a single control unit and on five decentralised control units. For the multiple channel control case, the reductions of the spatially averaged vibration measured with a laser vibrometer and the reduction of the total sound power radiation measured in an anechoic room are presented.

  • 2006
    Smart panel with decentralised inertial actuator active damping units C. González Díaz, C. Paulitsch, P. Gardonio ACTIVE 2006, Sixth International Symposium on Active Noise and Vibration Control, Adelaide, 18–20 Sept 2006
    ConferencePDF
  • 2006
    Feedback control laws for inertial actuators C. González Díaz, P. Gardonio Institute of Acoustics Spring Conference 2006: Futures in Acoustics, Southampton, 3–4 April 2006, 453–464
    ConferenceAward for outstanding paper and presentationPDF Award
  • 2005
    Proportional, integral, derivative, PID-, PI- and PD- velocity feedback control with inertial actuators C. González Díaz, P. Gardonio ISVR Technical Memorandum No. 956, University of Southampton
    ReportPDF
  • 2003
    Conception d’une nouvelle électronique de localisation d’une chambre à fils dédiée à la médecine nucléaire C. González Díaz, A. Barr D.E.A. d’Électronique report
    Report
  • 2002
    Obturation d’une galette micro-canaux à 20 MHz C. González Díaz, S. Holé Maîtrise de Physique et Applications report
    Report

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Affiliation
Space Payloads Department, Instituto Nacional de Técnica Aeroespacial (INTA), Torrejón de Ardoz, Madrid
LinkedIn
gonzalezdiazcristobal
ORCID
0000-0002-8789-9148
Scopus
20433459700

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Send me a message and I will reply as soon as possible.