Search results for "TEG"
showing 10 items of 20292 documents
Pirms lasīšanas uzdevumi mācību grāmatu tekstiem vārdu krājuma paplašināšanai angļu valodas stundās tehnikumā
2019
Šis diplomdarbs pēta pirms lasīšanas uzdevumu ietekmi uz vārdu krājuma paplašināšanu un lasīšanas izpratni. Tā mērķis ir izstrādāt pirms lasīšanas papildu uzdevumus un izpētīt, kā tie veicina skolēnu sasniegumus vārdu krājuma uzlabošanā. Teorētiskā daļa ir vērsta uz teorijām par ciešu savstarpējo saistību starp lasīšanu un vārdu krājuma pārzināšanu. Empīriskā daļa apraksta gadījumu izpētes rezultātus. Datu vākšanas rīki parādīja priekšrocības, ko sniedz papildu pirms lasīšanas pasākumi studentu grupām, kas bija iesaistītas eksperimentā, salīdzinot ar studentiem, kuri izmantoja tikai mācību grāmatu materiālus. Tiek secināts, ka pirms lasīšanas uzdevumi ir paplašinājuši studentu vārdu krājumu…
Communicating voice emphasis in harpsichord performance
2009
We investigated the means used by harpsichordists to communicate voice-specific melodic emphasis. Twelve harpsichordists were asked to perform a short Baroque polyphonic piece by Frescobaldi (1583-1643) on a harpsichord equipped with a MIDI console. Three conditions were tested, each requiring performers to emphasize a particular voice in the piece (soprano, alto, tenor). Four parameters were analyzed: velocity, note onset asynchrony, timing deviations, and articulation. Mean onset asynchronies were much larger than those observed in organ or piano performance, averaging more than 100 ms between outer voices. However, asynchronies did not vary significantly between conditions, suggesting th…
Vokālās imitācijas pilnveide pirmsskolas vecuma bērniem ar autiska spektra traucējumiem
2021
Maģistra darba tēma: Vokālās imitācijas pilnveide pirmsskolas vecuma bērniem ar autiska spektra traucējumiem Darba autore: Marija Skerškāne Darba vadītāja: Prof., Dr. paed. Sarmīte Tūbele Darba apjoms: 110 lpp, kas ietver 3 nodaļas, 8 apakšnodaļas un 9 pielikumus. Darbs satur 5 tabulas, 3 grafikus, izmantotās literatūras sarakstu ar 75 informācijas avotiem. Pētījuma mērķis: Izpētīt kā, izmantojot Kaufmanes runas prakses testa (turpmāk tekstā KRPT) kategorijas, var pilnveidot pirmsskolas vecuma bērnu ar autiska spektra traucējumiem (turpmāk tekstā AST) vokālo imitāciju. Pētījuma problēma: Bērniem ar AST ir traucēta vokālās imitācijas apguve, kā arī logopēdijā trūkst materiālu grūtību līmeľa …
A Low-Cost Smartphone Sensor-Based UV Camera for Volcanic SO2 Emission Measurements
2017
Recently, we reported on the development of low-cost ultraviolet (UV) cameras, based on the modification of sensors designed for the smartphone market. These units are built around modified Raspberry Pi cameras (PiCams; ≈USD 25), and usable system sensitivity was demonstrated in the UVA and UVB spectral regions, of relevance to a number of application areas. Here, we report on the first deployment of PiCam devices in one such field: UV remote sensing of sulphur dioxide emissions from volcanoes; such data provide important insights into magmatic processes and are applied in hazard assessments. In particular, we report on field trials on Mt. Etna, where the utility of these devices in quantif…
A model of degassing for Stromboli volcano
2010
International audience; A better understanding of degassing processes at open-vent basaltic volcanoes requires collection of new datasets of H2O–CO2–SO2 volcanic gas plume compositions, which acquisition has long been hampered by technical limitations. Here, we use the MultiGAS technique to provide the best-documented record of gas plume discharges from Stromboli volcano to date. We show that Stromboli's gases are dominated by H2O (48–98 mol%; mean, 80%), and by CO2 (2–50 mol%; mean, 17%) and SO2 (0.2–14 mol%; mean, 3%). The significant temporal variability in our dataset reflects the dynamic nature of degassing process during Strombolian activity; which we explore by interpreting our gas m…
Lidar detection of carbon dioxide in volcanic plumes
2015
Volcanic gases give information on magmatic processes. In particular, anomalous releases of carbon dioxide precede volcanic eruptions. Up to now, this gas has been measured in volcanic plumes with conventional measurements that imply the severe risks of local sampling and can last many hours. For these reasons and for the great advantages of laser sensing, the thorough development of volcanic lidar has been undertaken at the Diagnostics and Metrology Laboratory (UTAPRAD-DIM) of the Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA). In fact, lidar profiling allows one to scan remotely volcanic plumes in a fast and continuous way, and with high s…
Volcanic Plume CO2 Flux Measurements at Mount Etna by Mobile Differential Absorption Lidar
2017
Volcanic eruptions are often preceded by precursory increases in the volcanic carbon dioxide (CO2) flux. Unfortunately, the traditional techniques used to measure volcanic CO2 require near-vent, in situ plume measurements that are potentially hazardous for operators and expose instruments to extreme conditions. To overcome these limitations, the project BRIDGE (BRIDging the gap between Gas Emissions and geophysical observations at active volcanoes) received funding from the European Research Council, with the objective to develop a new generation of volcanic gas sensing instruments, including a novel DIAL-Lidar (Differential Absorption Light Detection and Ranging) for remote (e.g., distal) …
Ultraviolet imaging of volcanic plumes: A new paradigm in volcanology
2017
Ultraviolet imaging has been applied in volcanology over the last ten years or so. This provides considerably higher temporal and spatial resolution volcanic gas emission rate data than available previously, enabling the volcanology community to investigate a range of far faster plume degassing processes than achievable hitherto. To date, this has covered rapid oscillations in passive degassing through conduits and lava lakes, as well as puffing and explosions, facilitating exciting connections to be made for the first time between previously rather separate sub-disciplines of volcanology. Firstly, there has been corroboration between geophysical and degassing datasets at â1 Hz, expeditin…
Evolution of Seismicity During a Stalled Episode of Reawakening at Cayambe Volcano, Ecuador
2021
Cayambe Volcano is an ice-capped, 5,790 m high, andesitic-dacitic volcanic complex, located on the equator in the Eastern Cordillera of the Ecuadorian Andes. An eruption at Cayambe would pose considerable hazards to surrounding communities and a nationally significant agricultural industry. Although the only historically documented eruption was in 1785, it remains persistently restless and long-period (LP) seismicity has been consistently observed at the volcano for over 10 years. However, the sparse monitoring network, and complex interactions between the magmatic, hydrothermal, glacial, and tectonic systems, make unrest at Cayambe challenging to interpret. In June 2016 a seismic “crisis” …