DSpace Repository :: Browsing by Author "Iribas Pardo, Haritz"

Browsing by Author "Iribas Pardo, Haritz"

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Open Access
Antzekotasunaren ikaskuntza prozesu berritzaile baten aplikazio eta analisia 2. DBHn
(2019) Iriarte Elizagoyen, Itsaso; Iribas Pardo, Haritz; Facultad de Ciencias Humanas y Sociales; Giza eta Gizarte Zientzien Fakultatea
Master Bukaerako Lan honen helburu nagusia ondoko hau da: 2. DBHko ikasleen antzekotasunaren inguruko ikasketa prozesuaren gaineko analisia egitea. Lana bi ataletan antolatu da. Lehenengoan, curriculumaren eta testu-liburuen luzetarako azterketa egiten da Lehen Hezkuntzako 6. mailan eta Derrigorrezko Bigarren Hezkuntzan (DBH), zehazturiko gaiaren inguruan. Bigarrenean, antzekotasunari buruzko ikasketa prozesu bat proposatzen da, eta proposamen hori DBHko 2. ikasmailari dagokion ikasgela batean ezarri da, Masterreko Practicum II irakasgaiaren baitan. Esperimentazio horretatik lortu diren emaitzak ad hoc diseinaturiko galdetegi batean oinarritzen dira, kontuan hartuz, halaber, baldintzapen instituzionalak. Lanaren amaieran, aurkeztu egiten dira sintesia, zenbait ondorio eta erantzun gabe gelditu diren zenbait galdera.
Open Access
Brillouin optical time-domain analyzer for extended sensing range using probe dithering and cyclic coding
(SPIE, 2017) Iribas Pardo, Haritz; Loayssa Lara, Alayn; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
We present an enhanced performance Brillouin optical time-domain analysis sensor that uses dual probes waves with optical frequency modulation and cyclic coding. The frequency modulation serves to increase the probe power that can be injected in the ﬁber before the onset of non-local eﬀects and noise generated by spontaneous Brillouin scattering. This leads to higher detected signal-to-noise ratio (SNR), which is further increased by the coding gain. The enhanced SNR translates to extended range for the sensor, with experiments demonstrating 1-m spatial resolution over a 164 km ﬁber loop with a 3-MHz Brillouin frequency shift measurement precision at the worst contrast position. In addition, we introduce a study of the power limits that can be injected in the ﬁber with cyclic coding before the appearance of distortions in the decoded signal.
Open Access
Compensation of nonlocal effects induced by the extinction ratio of pump pulses in Brillouin optical time-domain analysis sensors
(Optical Society of America, 2019) Mariñelarena Ollacarizqueta, Jon; Iribas Pardo, Haritz; Urricelqui Polvorinos, Javier; Loayssa Lara, Alayn; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; Ingeniería Eléctrica, Electrónica y de Comunicación; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
We demonstrate a technique to compensate the nonlocal effects that appear in Brillouin optical time-domain analysis sensors when pump pulses with limited extinction ratio are deployed. These recently discovered nonlocal effects are originated in the interaction between the probe wave and the pulse pedestal. Hence, their compensation method is based on deploying a modulation (dithering) of the optical frequency of the probe and pulse pedestal waves that provides a reduction of the effective interaction length between them. This is implemented by taking advantage of the chirp associated to the direct current modulation of a semiconductor laser used as common source for both waves. The net effect of this procedure is that the probe and pulse pedestal waves display efficient Brillouin interaction just at correlation peaks along the fiber where the frequency difference between both waves remains constant. Proof-of-concept experiments in a 25-km sensing link demonstrate the performance of the technique, where large errors of more than 10 MHz in the measurement of the Brillouin frequency shift are completely compensated by introducing a sinusoidal dithering to the laser source.
Open Access
Contribution to the advancement of Brillouin optical time-domain analysis sensors
(2018) Iribas Pardo, Haritz; Loayssa Lara, Alayn; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Distributed fiber optic sensors (DFOS) are becoming an increasingly used technology to monitor the integrity of structures. This is due to the fact that this technology can be embedded within the structure and provide distributed information of several relevant parameters for the structure, such as stress, temperature or strain. In DFOS the fiber itself is the transducer, and the measurement of a given parameter is provided continuously along the fiber at a particular spatial resolution, without blind spots. This is the main advantage of DFOS compared to other sensing technologies, the fact that DFOS provide information of a given parameter over thousands or hundreds of thousands of positions along the optical fiber. Conversely, other sensing technologies only give information over the specific points where they are installed, that is to say, they are point sensors. This characteristic of distributed fiber sensors makes them enormously interesting when many points of a structure need to be monitored. In this case, a single distributed fiber sensor can replace many point sensors, which considerably reduces the cost per sensing point when monitoring large structures. In addition, due to the properties of the optical fiber, these sensors have a better performance compared to other kind of sensors. Among other important features, DFOS present a low signal loss, electromagnetic interference immunity, remote sensing and multiplexing capabilities, light weight, and are chemically passive, which make them a very attractive technology for field measurements. Therefore, DFOS have the added advantage of being electrically, magnetically, and chemically passive, so that can be placed in harsh environments, such as nuclear plants or areas with gas concentration, where, due to the possibility of a short circuit, electronic sensors cannot be placed. Al these characteristics make this technology unique. Among the different types of DFOS, those based on stimulated Brillouin scattering, and more specifically, those that build upon the Brillouin optical time-domain analysis (BOTDA) technique, are one of the most promising. The main characteristic that makes BOTDA sensors as promising, is the ability to perform distributed strain and temperature measurements over long distances at high spatial resolution. For the functioning of the sensor, the general interaction that takes place in the BOTDA technique involves two optical waves: a continuous wave probe and a counter-propagating pump pulse. The performance of the sensor response is limited, among others, by the maximum optical power of both waves that can be injected into the fiber. In this way, the main research line in BOTDA sensors is focused on the study of the physical limitations of the technique as well as the development of solutions to these constraints. Another important line relies on the simplification of the sensor setup so as to reduce the complexity and the cost of the sensor. This thesis dissertation contributes to the development of BOTDA sensors by means of different contributions in these two research lines. Several theoretical and experimental studies have been conducted to accurately determine the main limits to the sensor performance in terms of the maximum optical power of the pump and probe waves that can be used. One of the most important limitation in BOTDA sensors is the onset of non-local effects, which limits the maximum pump and probe waves power that can be injected in the fiber, and hence, the signal-to-noise ratio (SNR) at the receiver is worsen. The so-called non-local effects generate measurement errors, because the Brillouin spectra measured at distant locations depend on the interaction at previous positions in the fiber. In this research line, we have examined the effects caused by the limited extinction ratio (ER) of the pump pulse, finding that, among other impairments, it leads to the onset of a new non-local effect originated in the depletion of the pedestal of the pump wave. In addition, it has been found that the pedestal deformation caused by the transient response of erbium-doped fiber amplifiers, which are typically deployed to amplify the pump pulse, also constrains the performance of the sensor. Another contribution is the study of the techniques presented in the literature to mitigate the impairments caused by second-order non-local effects, which cause a frequency-dependent spectral deformation of the pulse. The findings of this study show that these techniques are only applicable when the Brillouin frequency shift (BFS) of the fiber is uniform, which is hard to find in real applications. Lastly, another subject of study is the limitations of the pump and probe optical power in coded-pump wave BOTDA configurations. We have observed that, in addition to some known limitations, there are two important restrictions that have to be taken into account: the onset of non-local effects and the non-linear amplification of the probe wave, both generated by the successive gain induced by the multiple pulses of the coded-pump wave. As a consequence of the findings of these studies, BOTDA configurations intended to solve these limitations have also been proposed during the thesis work. A technique to mitigate the constraints induced by the limited ER of the pump pulse has been presented. This method is based on adding a dithering to the optical source used to generate the two waves involved in the BOTDA sensor, so that the optical wavelength of both signals is modulated. In this way, the Brillouin interaction between the pedestal and the probe wavefronts become uncorrelated, and hence, the influence of the pedestal is greatly reduced. Another contribution is a technique focused on completely overcome the onset of second-order non-local effects. This method is based on continuously tracking the BFS distribution of the fiber, which combined with the probe-dithering method, has allowed, to the best of our knowledge, to inject the highest demonstrated probe wave power in a BOTDA sensor to date. In addition, in order to improve the SNR of the sensor, a novel BOTDA sensor has been proposed. This analyzer combines mono-color cyclic coding and probe-dithering techniques, so that the impairments caused by a coded pump wave are reduced, and hence, it is possible to increase the optical power and consequently enhance the sensing distance range. Finally, a novel simplified BOTDA sensor has been presented, which relies on passive optical filtering of the spectral components generated in a single optical source. In this way, the sensor setup is simplified reducing the number of optical devices, and therefore, the cost of the sensor is also reduced. This BOTDA configuration has been shown to have a performance comparable to more complex setups.
Open Access
Cost-effective Brillouin optical time-domain analysis sensor using a single optical source and passive optical filtering
(Hindawi Publishing Corporation, 2016) Iribas Pardo, Haritz; Urricelqui Polvorinos, Javier; Mariñelarena Ollacarizqueta, Jon; Sagüés García, Mikel; Loayssa Lara, Alayn; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
We present a simplified configuration for distributed Brillouin optical time-domain analysis sensors that aims to reduce the cost of the sensor by reducing the number of components required for the generation of the two optical waves involved in the sensing process. Te technique is based on obtaining the pump and probe waves by passive optical filtering of the spectral components generated in a single optical source that is driven by a pulsed RF signal. Te optical source is a compact laser with integrated electroabsorption modulator and the optical filters are based on fiber Bragg gratings. Proof-of-concept experiments demonstrate 1m spatial resolution over a 20km sensing fiber with a 0.9MHz precision in the measurement of the Brillouin frequency shiſt, a performance similar to that of much more complex setups. Furthermore, we discuss the factors limiting the sensor performance, which are basically related to residual spectral components in the filtering process.
Open Access
Cyclic coding for Brillouin optical time-domain analyzers using probe dithering
(Optical Society of America, 2017) Iribas Pardo, Haritz; Loayssa Lara, Alayn; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien; Institute of Smart Cities - ISC
We study the performance limits of mono-color cyclic coding applied to Brillouin optical time-domain analysis (BOTDA) sensors that use probe wave dithering. BOTDA analyzers with dithering of the probe use a dual-probe-sideband setup in which an optical frequency modulation of the probe waves along the fiber is introduced. This avoids non-local effects while keeping the Brillouin threshold at its highest level, thus preventing the spontaneous Brillouin scattering from generating noise in the deployed sensing fiber. In these conditions, it is possible to introduce an unprecedented high probe power into the sensing fiber, which leads to an enhancement of the signal-to-noise ratio (SNR) and consequently to a performance improvement of the analyzer. The addition of cyclic coding in these set-ups can further increase the SNR and accordingly enhance the performance. However, this unprecedented probe power levels that can be employed result in the appearance of detrimental effects in the measurement that had not previously been observed in other BOTDA set-ups. In this work, we analyze the distortion in the decoding process and the errors in the measurement that this distortion causes, due to three factors: the power difference of the successive pulses of a code sequence, the appearance of first-order non-local effects and the non-linear amplification of the probe wave that results when using mono-color cyclic coding of the pump pulses. We apply the results of this study to demonstrate the performance enhancement that can be achieved in a long-range dithered dual-probe BOTDA. A 164-km fiber-loop is measured with 1-m spatial resolution, obtaining 3-MHz Brillouin frequency shift measurement precision at the worst contrast location. To the best of our knowledge, this is the longest sensing distance achieved with a BOTDA sensor using mono-color cyclic coding.
Open Access
Detrimental effects in Brillouin distributed sensors caused by EDFA transient
(Optical Society of America, 2017) Feng, Cheng; Iribas Pardo, Haritz; Mariñelarena Ollacarizqueta, Jon; Schneider, Thomas; Loayssa Lara, Alayn; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
We investigate the deleterious effect and the error in Brillouin optical time-domain analyzers induced by the combination of a low extinction ratio pulse generation with the transient behavior of erbium-doped fiber amplifiers.
Open Access
Effects of pump pulse extinction ratio in Brillouin optical time-domain analysis sensors
(Optical Society of America, 2017) Iribas Pardo, Haritz; Mariñelarena Ollacarizqueta, Jon; Feng, Cheng; Urricelqui Polvorinos, Javier; Schneider, Thomas; Loayssa Lara, Alayn; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
We report on two previously unknown non-local effects that have been found to impair Brillouin optical time-domain analysis (BOTDA) sensors that deploy limited extinction ratio (ER) pump pulses. The first one originates in the increased depletion of the pedestal of the pump pulses by the amplified probe wave, which in turn entails a reduced amplification of the probe and a measurement distortion. The second effect is due to the interplay between the transient response of the erbium-doped fiber amplifiers (EDFA) that are normally deployed to amplify the pump and the pedestal of the pump pulses. The EDFA amplification modifies the pedestal that follows the pulses in such a way that it also leads to a distortion of the measured gain spectra after normalization. Both effects are shown to lead to non-local effects in the measurements that have similar characteristics to those induced by pump pulse depletion. In fact, the total depletion factor for calculations of the Brillouin frequency shift (BFS) error in BOTDA sensors is shown to be the addition of the depletion factors linked to the pump pulse as well as the pedestal. A theoretical model is developed to analyze both effects by numerical simulation. Furthermore, the effects are investigated experimentally in long-range BOTDA sensors. The pedestal depletion effect is shown to severely constrain the probe power as well as the minimum ER of the pulses that can be deployed in BOTDA sensors. For instance, it is shown that, in a long-range dual-probe BOTDA, an ER higher that 32-dB, which is above that provided by standard electro-optic modulators (EOM), is necessary to be able to deploy a probe power of -3 dBm, which is the theoretical limit for that type of sensors. Even more severe can be the limitation due to the depletion effect induced by the EDFA transient response. It is found that the impairments brought by this effect are independent of the probe power, hence setting an ultimate limit for the BOTDA sensor performance. Experimentally, a long-range BOTDA deploying a 26-dB ER EOM and a conventional EDFA is shown to exhibit a BFS error higher than 1 MHz even for very small probe power.
Open Access
Egituren egoeraren monitorizaziorako zuntz optikoan oinarritutako sentsore sinplifikatua
(Udako Euskal Unibertsitatea, 2015) Iribas Pardo, Haritz; Sagüés García, Mikel; Mariñelarena Ollacarizqueta, Jon; Loayssa Lara, Alayn; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Brillouin hedatuko denbora eremu optikoaren analisian (BOTDA) oinarritutako sentsoreak, estruktura handien (100 km luzerako estrukturak) deformazioa eta tenperatura neurtzeko gaitasuna dute. Lan honetan, BOTDA konfigurazio sinplifikatua aurkezten dugu. Erabilitako konfigurazioaren helburua sentsorearen prezioa murriztea da, detekzio prozesuan parte hartzen duten seinale optikoen sortze prozesua sinplifikatuz. Proposatutako teknika hau, iturri optiko bati irrati-maiztasun (IM) pultsu modulatu bat aplikatuz sortutako osagai espektralen iragazketa optiko pasiboan oinarritzen da. Laborategiko esperimentuek frogatzen dute tenperatura hedatuko neurriak 1,1 metroko erresoluzioarekin 5 km zuntz optikoan zehar
Open Access
Eman dezagun paseo bat Iruñeko Arrotxapean barna... baina ikus dezagun hiria matematiken begiradatik. Irakasleendako gida
(Ayuntamiento de Pamplona, 2023) Iribas Pardo, Haritz; Abaurrea Larrayoz, Jaione; Wilhelmi, Miguel R.; Lasa Oyarbide, Aitzol; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika
Iruñeko Arrotxapea auzotik ibilbide matematiko bat diseinatu da. Lehen Hezkuntzako 6. mailako eta Bigarren Hezkuntzako 2. mailako ikasleek tokian bertan ebatzi beharreko arazo matematikoak dituzte, kokapen interesgarri jakin batzuei lotuta (lekuak, eraikinak edo eskulturak, hiri-altzarien elementuak...). Problema edo erronka matematikoak egokiak dira matematika irakasgaiaren ikaskuntza-estandar ofizialetarako, adierazitako mailetan. Informazioa edo pistak ematen dira, bai grafikoak, bai testualak, ebazteko.
Open Access
Eman dezagun paseo bat Iruñeko Arrotxapean barna... baina ikus dezagun hiria matematiken begiradatik. Jarduera-koadernoa
(Ayuntamiento de Pamplona, 2023) Iribas Pardo, Haritz; Abaurrea Larrayoz, Jaione; Wilhelmi, Miguel R.; Lasa Oyarbide, Aitzol; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika
Iruñeko Arrotxapea auzotik ibilbide matematiko bat diseinatu da. Lehen Hezkuntzako 6. mailako eta Bigarren Hezkuntzako 2. mailako ikasleek tokian bertan ebatzi beharreko arazo matematikoak dituzte, kokapen interesgarri jakin batzuei lotuta (lekuak, eraikinak edo eskulturak, hiri-altzarien elementuak…). Problema edo erronka matematikoak egokiak dira matematika irakasgaiaren ikaskuntza-estandar ofizialetarako, adierazitako mailetan. Informazioa edo pistak ematen dira, bai grafikoak, bai testualak, ebazteko.
Open Access
Eman dezagun paseo bat Iruñeko Buztintxurin eta Sanduzelain barna... baina ikus dezagun hiria matematiken begiradatik. Irakasleendako gida
(Ayuntamiento de Pamplona, 2022) Lasa Oyarbide, Aitzol; Abaurrea Larrayoz, Jaione; Iribas Pardo, Haritz; Wilhelmi, Miguel R.; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika
Iruñeko Buztintxuri eta Sanduzelai auzoetatik ibilbide matematiko bat diseinatu da. Lehen Hezkuntzako 6. mailako eta Bigarren Hezkuntzako 2. mailako ikasleek tokian bertan ebatzi beharreko arazo matematikoak dituzte, kokapen interesgarri jakin batzuei lotuta (lekuak, eraikinak edo eskulturak, hiri-altzarien elementuak...). Problema edo erronka matematikoak egokiak dira matematika irakasgaiaren ikaskuntza-estandar ofizialetarako, adierazitako mailetan. Informazioa edo pistak ematen dira, bai grafikoak, bai testualak, ebazteko.
Open Access
Eman dezagun paseo bat Iruñeko Buztintxurin eta Sanduzelain barna... baina ikus dezagun hiria matematiken begiradatik. Jarduera-koadernoa
(Ayuntamiento de Pamplona, 2022) Lasa Oyarbide, Aitzol; Abaurrea Larrayoz, Jaione; Iribas Pardo, Haritz; Wilhelmi, Miguel R.; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika
Iruñeko Buztintxuri eta Sanduzelai auzoetatik ibilbide matematiko bat diseinatu da. Lehen Hezkuntzako 6. mailako eta Bigarren Hezkuntzako 2. mailako ikasleek tokian bertan ebatzi beharreko arazo matematikoak dituzte, kokapen interesgarri jakin batzuei lotuta (lekuak, eraikinak edo eskulturak, hiri-altzarien elementuak…). Problema edo erronka matematikoak egokiak dira matematika irakasgaiaren ikaskuntza-estandar ofizialetarako, adierazitako mailetan. Informazioa edo pistak ematen dira, bai grafikoak, bai testualak, ebazteko.
Open Access
Enhanced tolerance to pulse extinction ratio in Brillouin optical time domain analysis sensors by dithering of the optical source
(SPIE, 2015) Iribas Pardo, Haritz; Urricelqui Polvorinos, Javier; Sagüés García, Mikel; Loayssa Lara, Alayn; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa; Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
We demonstrate the relaxation of the stringent requirements placed on the pulse extinction ratio in long-range Brillouin optical time-domain analysis sensors (BOTDA) by modulating the wavelength of the laser source that is used to generate both pump and probe waves. This modulation makes the counter-propagating pulse pedestal and probe waves to become correlated only at certain locations in the fiber, thus reducing the gain experienced by the probe wave, which is precisely the process that limits the performance in long-range BOTDAs. Proof-of-concept experimental results in a 20-km sensing link demonstrate a 6-dB reduction of the required modulator extinction ratio.
Open Access
Enhancement of signal-to-noise ratio in Brillouin optical time domain analyzers by dual-probe detection
(SPIE, 2017) Iribas Pardo, Haritz; Loayssa Lara, Alayn; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
We demonstrate a simple technique to enhance the signal-to-noise ratio (SNR) in Brillouin optical time-domain analysis sensors by the addition of gain and loss processes. The technique is based on the shift of the pump pulse optical frequency in a double-sideband probe system, so that the gain and loss processes take place at different frequencies. In this manner, the loss and the gain do not cancel each other out, and it makes possible to take advantage of both informations at the same time, obtaining an improvement of 3 dB on the SNR. Furthermore, the technique does not need an optical filtering, so that larger improvement on SNR and a simplification of the setup are obtained. The method is experimentally demonstrated in a 101 km fiber spool, obtaining a measurement uncertainty of 2.6 MHz (2σ) at the worst-contrast position for 2 m spatial resolution. This leads, to the best of our knowledge, to the highest figure-of-merit in a BOTDA without using coding or raman amplification.
Open Access
Eskoletan digitalizazioa sustatzen
(Mondragon Unibertsitatea, 2019) Iribas Pardo, Haritz; Arriaran Olalde, Iñigo; Ingeniería Eléctrica, Electrónica y de Comunicación; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
Open Access
Fiber-optic brillouin distributed sensors: from dynamic to long-range measurements
(CRC Press, 2018) Loayssa Lara, Alayn; Urricelqui Polvorinos, Javier; Iribas Pardo, Haritz; Mompó Roselló, Juan José; Mariñelarena Ollacarizqueta, Jon; Estadística, Informática y Matemáticas; Ingeniería Eléctrica, Electrónica y de Comunicación; Estatistika, Informatika eta Matematika; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
This chapter focuses on Brillouin optical time-domain analysis (BOTDA) sensors because they are the most successful Brillouin distributed sensors (BDS) type in terms of performance and practical applications. Distributed sensor featuring can be done in the time, coherence, or frequency domains, giving rise to the three main analysis BDS types: BOTDA, Brillouin optical correlation-domain analysis (BOCDA), and Brillouin optical frequency-domain analysis (BOFDA). The distance range of measurements performed using a BOTDA sensor is given by the length of sensing fiber that the system is able to measure with a specified performance in terms of measurement precision and time. The chapter reviews the fundamentals and the research directions in BDSs. The applications of the technology are multiple and in diverse fields¿for instance, in the oil and gas industry, where BDSs have been applied to measure temperature and strain along the umbilical cables used for subsea wells.
Open Access
Funtzioen ikaskuntza prozesua proiektu batekin lagunduta DBHko 2. ikasmailan
(2021) Labat Suarez, Aritz; Iribas Pardo, Haritz; Facultad de Ciencias Humanas, Sociales y de la Educación; Giza, Gizarte eta Hezkuntza Zientzien Fakultatea
Master Bukaerako Lan honen helburu nagusia ondoko hau da: DBHko 2. ikasmailan ikasleen funtzioen inguruko ikasketa prozesuaren gaineko analisia egitea. Lana bi ataletan antolatu da. Lehenengoan, curriculumaren eta testuliburuen luzetarako azterketa egiten da Lehen Hezkuntzako (LH) hirugarren zikloko 6. ikasmailan, eta Derrigorrezko Bigarren Hezkuntzan (DBH), zehazturiko gaiaren inguruan. Bigarrenean, funtzioei buruzko ikasketa prozesu bat proposatzen da, eta proposamen hori DBHko 2. ikasmailari dagokion ikasgela batean ezarri da, Masterreko Practicum II irakasgaiaren baitan. Esperimentazio horretatik lortu diren emaitzak ad hoc diseinaturiko galdetegi batean oinarritzen dira, kontuan hartuz, halaber, baldintzapen instituzionalak. Lanaren amaieran, aurkeztu egiten dira sintesia, zenbait ondorio eta erantzun gabe gelditu diren zenbait galdera.
Open Access
Funtzioen limiteen eta jarraitutasunaren ikasketa prozesu bat, irakaskuntza ez-presentzialaren bidez, zientzietako Batx. 1. mailan
(2020) Martinena Moreno, Belatz; Iribas Pardo, Haritz; Facultad de Ciencias Humanas, Sociales y de la Educación; Giza, Gizarte eta Hezkuntza Zientzien Fakultatea
Master Bukaerako Lan honen helburu nagusia ondoko hau da: zientzietako batxilergoko 1. mailan, funtzioen limiteen eta jarraitutasunaren ikasketa prozesu bat deskribatzea eta analizatzea, 2020ko COVID-19-aren pandemiagatik sortutako irakaskuntzaikaskuntza ez-presentziaren testuinguruan. Lana bi ataletan antolatu da. Lehenengoan, curriculumaren eta testuliburuen luzetarako azterketa egiten da DBH-n eta Batxilergoan, zehazturiko gaiaren inguruan. Bigarrenean, funtzioen limiteak eta jarraitutasunari buruzko ikasketa prozesu bat proposatzen da, eta proposamen hori zientzietako batxilergoko 1. ikasmailari dagokion ikasgela batean ezarri da, Masterreko Practicum II irakasgaiaren baitan. Esperimentazio horretatik lortu diren emaitzak ad hoc diseinaturiko galdetegi batean oinarritzen dira, kontuan hartuz, halaber, baldintzapen instituzionalak. Lanaren amaieran, aurkeztu egiten dira sintesia, zenbait ondorio eta erantzun gabe gelditu diren zenbait galdera.
Open Access
Gizarte digitalerako hezkuntza: adimen artifizialaren eta big dataren erabilerarantz
(Mondragon Unibertsitatea, 2020) Astigarraga, Eugenio; Zubizarreta Pagaldai, Ane; Díaz, Koldo; Ipiña, Nagore; Moreno, Aitor; Galíndez Nafarrate, Edurne; García Blázquez, Itziar; SantaCruz, Sirats; Torres Lete, Maialen; Zuberogoitia, Aitor; Iribas Pardo, Haritz; Gostin, Andrés; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika
Gizartean izan den iraultza teknologikorik eraldakorrenaren testigu gara; une oro aldatzen eta berreraikitzen den gizarte baten iraultza ezplanifikatuaren testigu. Espazioa globalizatuz eta deslokalizatuz doa; halatan, mikroistorio, mikrokultura eta mikrosegundoen aroa sortu da, mikrolanetarako eta gig-ekonomiarako sarbidea emango diguna. Eredu berri horretan, mezu hipermediatiko eta hipertestualak eraikitzeko kultura nagusitu da, zeinak sortzez jada digitalak baitira. Baina ez hori bakarrik: gure pentsamenduan ere (er)aldaketa gertatu da, eta pentsamendu bisual eta pentsamendu konputazional baten aurrean kokatzen da gizartea.