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Academic literature on the topic 'Educational tests and measurements Victoria'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Educational tests and measurements Victoria"

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Sternberg, Robert J. "Ability tests, measurements, and markets." Journal of Educational Psychology 84, no. 2 (1992): 134–40. http://dx.doi.org/10.1037/0022-0663.84.2.134.

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Care, Esther, Erin Roberts, and Amanda Thomas. "Effects of language background on measures of ability of children in their first year of school." Australian Educational and Developmental Psychologist 26, no. 1 (March 1, 2009): 20–35. http://dx.doi.org/10.1375/aedp.26.1.20.

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AbstractThis report outlines the usefulness and appropriateness of three commonly used tests of ability for Preparatory level (Prep) children in Victoria, Australia, from non-English speaking backgrounds. Traditional school readiness and ability tests are dependent on knowledge of the English language, and thus may not be valid tools for assessing students with limited English proficiency. Tests that measure both verbal and nonverbal abilities were administered to 32 children, 14 from English speaking and 18 from non-English speaking backgrounds. Differences between the two groups of children are reported with a focus on interpretation in the context of effect of English language proficiency on performance. The results indicate that student performance on a variety of tests is constrained by English language knowledge, rather than by actual cognitive ability.
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Scheirs, J. G. M. "A Priori and A Posteriori Tests on Repeated Measurements." Educational Psychology 12, no. 1 (January 1992): 63–72. http://dx.doi.org/10.1080/0144341920120105.

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Oosterveld, Paul, and Johan Hoogstraten. "The Differential Predictive Validity of Two Measurements of Cognitive Ability." Perceptual and Motor Skills 82, no. 3 (June 1996): 817–18. http://dx.doi.org/10.2466/pms.1996.82.3.817.

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In this study was compared the relative predictive power of an achievement test and a self-report questionnaire for cognitive abilities in the context of prediction of educational achievement. With average grades, the multiple correlation of scores on both tests administered to a sample of 232 pupils in secondary education showed only marginal differences.
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Zárate, Belizario A., Rachid El Hamdouni, and Tomás Fernández. "GNSS and RPAS Integration Techniques for Studying Landslide Dynamics: Application to the Areas of Victoria and Colinas Lojanas, (Loja, Ecuador)." Remote Sensing 13, no. 17 (September 3, 2021): 3496. http://dx.doi.org/10.3390/rs13173496.

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This research tests the application of GNSS and RPAS techniques to the spatiotemporal analysis of landslide dynamics. Our method began by establishing non-permanent GNSS networks on the slope surfaces to perform periodic measurements by differential GNSS. Similarly, RPAS flights were made to acquire high-resolution images, which were oriented and georeferenced using ground control points and structure-from-motion algorithms to ultimately obtain digital surface models and orthophotos. Based on GNSS measurements, the direction and velocity of displacements were accurately calculated, and orthophotos and DSMs were used to calculate horizontal and vertical displacements in a set of significant points throughout the study area, reaching accuracies higher than 0.035 m in the GNSS data and 0.10 m in the RPAS data. These values were within the accuracy required for such studies. Based on the field observations and the results from the photogrammetric studies, the two studied landslides were classified as very slow flows. These techniques are the basis for establishing early warning systems in areas of natural hazards based on the calculation of displacement speeds of the surface of slopes.
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Ventura, C. E., A. J. Felber, and S. F. Stiemer. "Determination of the dynamic characteristics of the Colquitz River Bridge by full-scale testing." Canadian Journal of Civil Engineering 23, no. 2 (April 1, 1996): 536–48. http://dx.doi.org/10.1139/l96-058.

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This paper presents the results of full-scale tests performed at the Colquitz River Bridge near Victoria, British Columbia (B.C.), Canada, during September 1992 to determine the dynamic characteristics of the structure. The five-span bridge was completed in 1954 and is part of the Trans-Canada Highway. It is 82.68 m long and 11.89 m wide, and has six continuous steel girders supporting a 175 mm thick concrete deck. This particular bridge was chosen for testing because of its typical nature of many B.C. bridges, its location in an area of high seismic risk, and its excellent site accessibility. The tests included extensive measurements of ambient vibrations induced by traffic and other sources to determine the dynamic characteristics of the bridge. The most significant vertical and lateral mode shapes and associated periods of vibration were determined from vibration measurements at more than 50 different locations of the deck, piers, and abutments. Although a large amount of data were collected, they were quickly processed and analyzed with an innovative system developed at The University of British Columbia. One of the important features of this system is that it permits the identification of the principal modes of vibration immediately after the data have been collected. In addition to the ambient vibration tests, quick release pullback tests were conducted to verify modal frequencies determined from the ambient vibration tests and to determine the damping of the fundamental modes. These tests consisted of loading the bridge at a selected location with a force of about 90 kN and then releasing this load very quickly to induce free vibrations. The information obtained from the field tests was used to refine a computer finite element model of the bridge, which, in turn, was used to gain insight into the dynamic behaviour of specific components of the bridge. Further, this information was used later by the bridge owner to evaluate the bridge's expected response during an earthquake. Key words: steel bridges, dynamic response, full-scale tests.
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Budakova, Anna V., Maxim V. Likhanov, Teemu Toivainen, Alexey V. Zhurbitskiy, Elina O. Sitnikova, Elizaveta M. Bezrukova, and Yulia Kovas. "Measuring Spatial Ability for Talent Identification, Educational Assessment, and Support: Evidence from Adolescents with High Achievement in Science, Arts, and Sports." Psychology in Russia: State of the Art 14, no. 2 (2021): 59–85. http://dx.doi.org/10.11621/pir.2021.0205.

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Background. Spatial ability (SA) is a robust predictor of academic and occupational achievement. The present study investigated the psychometric properties of 10 tests for measuring of SA in a sample of talented schoolchildren. Objective. Our purpose was to identify the most suitable measurements for SA for the purpose of talent identification, educational assessment, and support. Design. Our sample consisted of 1479 schoolchildren who had demonstrated high achievement in Science, Arts, or Sports. Several criteria were applied to evaluate the measurements, including an absence of floor and ceiling effects, low redundancy, high reliability, and external validity. Results. Based on these criteria, we included the following four tests in an Online Short Spatial Ability Battery “OSSAB”: Pattern Assembly; Mechanical Reasoning; Paper Folding; and Shape Rotation. Further analysis found differences in spatial ability across the three groups of gifted adolescents. The Science track showed the highest results in all four tests. Conclusion. Overall, the study suggested that the Online Short Spatial Ability Battery (OSSAB) can be used for talent identification, educational assessment, and support. The analysis showed a unifactorial structure of spatial abilities. Future research is needed to evaluate the use of this battery with other specific samples and unselected populations.
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Jones, Patrice R., Sarah Voisin, Brendan J. Nolan, Shanie Landen, Macsue Jacques, Beau Newell, Sav Zwickl, et al. "Uncovering the effects of gender affirming hormone therapy on skeletal muscle and epigenetics: protocol for a prospective matched cohort study in transgender individuals (the GAME study)." BMJ Open 12, no. 5 (May 2022): e060869. http://dx.doi.org/10.1136/bmjopen-2022-060869.

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IntroductionGender affirming hormone therapy (GAHT) is increasingly used by transgender individuals and leads to shifts in sex hormone levels. Skeletal muscle is highly responsive to hormone activity, with limited data on the effects of GAHT on different human tissues. Here, we present the protocol for the GAME study (the effects of Gender Affirming hormone therapy on skeletal Muscle training and Epigenetics), which aims to uncover the effects of GAHT on skeletal muscle ‘omic’ profiles (methylomics, transcriptomics, proteomics, metabolomics) and markers of skeletal muscle health and fitness.Methods and analysisThis study is a prospective age-matched cohort study in transgender adults commencing GAHT (n=80) and age-matched individuals not commencing GAHT (n=80), conducted at Austin Health and Victoria University in Victoria, Australia. Assessments will take place prior to beginning GAHT and 6 and 12 months into therapies in adults commencing GAHT. Age-matched individuals will be assessed at the same time points. Assessments will be divided over three examination days, involving (1) aerobic fitness tests, (2) muscle strength assessments and (3) collection of blood and muscle samples, as well as body composition measurements. Standardised diets, fitness watches and questionnaires will be used to control for key confounders in analyses. Primary outcomes are changes in aerobic fitness and muscle strength, as well as changes in skeletal muscle DNA methylation and gene expression profiles. Secondary outcomes include changes in skeletal muscle characteristics, proteomics, body composition and blood markers. Linear mixed models will be used to assess changes in outcomes, while accounting for repeated measures within participants and adjusting for known confounders.Ethics and disseminationThe Austin Health Human Research Ethics Committee (HREC) and Victoria University HREC granted approval for this study (HREC/77146/Austin-2021). Findings from this project will be published in open-access, peer-reviewed journals and presented to scientific and public audiences.Trial registration numberACTRN12621001415897; Pre-results.
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Ricordeau, Philippe, Pierre Durieux, Alain Weill, Gilles Chatellier, Nathalie Vallier, Alvine Bissery, Pierre Fender, and Hubert Allemand. "EFFECT OF A NATIONWIDE PROGRAM OF EDUCATIONAL OUTREACH VISITS TO IMPROVE THE PROCESSES OF CARE FOR PATIENTS WITH TYPE 2 DIABETES." International Journal of Technology Assessment in Health Care 19, no. 4 (December 2003): 705–10. http://dx.doi.org/10.1017/s0266462303000679.

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Objectives: To improve processes of ambulatory care for patients with type 2 diabetes in a nationwide program.Methods: Interrupted time-series analysis with audits of practice. To implement selected recommendations of national guidelines, educational outreach visits (office visits or phone discussions) were offered to all French physicians who diagnosed one case of type 2 diabetes during a six-month intervention period. Outcome measures were the number of HBA1c measurements recorded monthly in the medical insurance computer database and the proportion of diabetic patients for whom one test had been reimbursed during the previous six months (HBA1c, fasting blood glucose) or previous twelve months (serum cholesterol, serum creatinine, urine microalbumin, electrocardiogram, ophthalmologic examination).Results: A total of 15,522 office visits and 9,062 telephone discussions were performed among 22,940 physicians. The increase in the monthly proportion of the number of HBA1c tests to the total number of laboratory tests was higher during the intervention period than during the preintervention (p value<.0001) and postintervention periods (p value<.001). Between the first audit (n=651,574) and the third audit (n=911,871), HBA1c measurements increased from 41.2% to 60.5% and blood glucose measurements performed alone decreased from 38.8% to 18.7%. Urine microalbumin measurements increased from 10.6% before to 15.3% after intervention. Only a slight increase was observed for other tests.Conclusions: Physician to physician outreach visits can be an effective way to improve the processes of care for diabetes and to routinize nationwide use of practice guidelines.
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Nowak-Dzieszko, K., and T. Kisilewicz. "Internal particulate matter pollution in educational building." E3S Web of Conferences 172 (2020): 06008. http://dx.doi.org/10.1051/e3sconf/202017206008.

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The authors undertook research on the proper strategy of operation of educational building with gravitational ventilation in historic city center with high concentration of particulate matter PM10 and PM 2.5. In this facility the momentary increase in carbon dioxide concentration is often very high, and at the same time health requirements regarding atmospheric aerosol should be absolutely met. That is why long-term measurements of PM concentration outside and inside, as well as carbon dioxide concentration inside were carried out. CO2 was used also as a tracer gas for measurement of air change intensity. The article presents the first results of these tests and a correlation that occurs between the external and internal concentration of particulate matter PM 10 and PM 2.5. Due to a significant filtration effect of the external building envelope and particle deposition a potential conflict between required gravitational ventilation intensity and internal air pollution with particulate matters was partially reduced.
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Dissertations / Theses on the topic "Educational tests and measurements Victoria"

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Young, John Richard. "A case study of the manageability and utility of assessment in three New Zealand primary schools 1993-2006 : a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Doctor of Philosophy in Education /." ResearchArchive@Victoria e-Thesis, 2009. http://hdl.handle.net/10063/1142.

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Haick, Angela. "Testing irregularities : are we getting accurate scores? /." La Verne, Calif. : University of La Verne, 2003. http://0-wwwlib.umi.com.garfield.ulv.edu/dissertations/fullcit/3076863.

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Rowan, Barbara Ellen. "Comparability of paper-and-pencil and computer-based cognitive and non-cognitive measures in a low-stakes testing environment /." Full-text of dissertation on the Internet (776.77 KB), 2010. http://www.lib.jmu.edu/general/etd/2010/doctorate/rowanbe/rowanbe_doctorate_04-02-2010.pdf.

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Chan, Wai-fat. "An investigation into the effects of diagnostic assessment on students' learning : a case study of the effects of diagnostic assessment on secondary 4 students' learning of chemistry /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17601150.

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Lai, Chan-pong. "Item bias in the 2nd IEA mathematics study." Click to view the E-thesis via HKUTO, 1986. http://sunzi.lib.hku.hk/HKUTO/record/B38626445.

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Hart, Raymond C. "A framework for psychometric analysis of student performance across time an illustration with National Educational Longitudinal Study data /." [Kent, Ohio] : Kent State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1177960052.

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Thesis (Ph.D.)--Kent State University, 2007.
Title from PDF t.p. (viewed June 1, 2007). Advisors: Dimiter Dimitrov, Shawn Fitzgerald. Keywords: Item response theory, true score theory, reliability, measurement of change, NELS:88 Includes bibliographical references (p. 58-62).
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Januário, Francisco Maria. "Investigating and improving assessment practices in Physics in secondary schools in Mozambique." Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-09252008-161339/.

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Caldwell, Nicole S. "Educational implications of high stakes testing." [Denver, Colo.] : Regis University, 2010. http://adr.coalliance.org/codr/fez/view/codr:84.

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Fullilove, John Pope III. "Examining oral English proficiency some factors affecting rater reliability in the use of English oral examination /." Click to view the E-thesis via HKUTO, 1992. http://sunzi.lib.hku.hk/hkuto/record/B4389334X.

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O'Loughlin, Kieran John. "The comparability of direct and semi-direct speaking tests : a case study /." Connect to thesis, 1997. http://eprints.unimelb.edu.au/archive/00000378.

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Books on the topic "Educational tests and measurements Victoria"

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Musgrave, P. W. Whose knowledge?: A case study of the Victorian Universities Schools Examinations Board, 1964-1979. London: Falmer Press, 1988.

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Ojerinde, Dibu. Educational tests and measurements. Ibadan: Codat Audio-visual services, 1986.

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Tests & measurements for people who (think they) hate tests & measurements. 2nd ed. Thousand Oaks: SAGE Publications, 2013.

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Gatumu, Haniel Nyaga. Criterion referenced tests (measurements) as opposed to norm referenced tests (measurements). [Nairobi]: Bureau of Educational Research, 1991.

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Modern educational measurement: Practical guidelines for educational leaders. 3rd ed. Boston: Allyn and Bacon, 2000.

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M, Brookhart Susan, ed. Educational assessment of students. 6th ed. Boston, Mass: Pearson Education, 2011.

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Nitko, Anthony J. Educational assessment of students. 6th ed. Boston, Mass: Pearson Education, 2011.

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Testwise: Understanding educational assessment. Lanham: Rowman & Littlefield Education, 2010.

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Nitko, Anthony J. Educational assessment of students. 4th ed. Upper Saddle River, N.J: Merrill, 2004.

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C, Impara James, Plake Barbara S, and Buros Institute of Mental Measurements., eds. The Thirteenth mental measurements yearbook. Lincoln, Nebraska: Buros Institute of Mental Measurements, 1998.

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Book chapters on the topic "Educational tests and measurements Victoria"

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Korsak, Olena, and Yurii Korsak. "PARTICIPATION OF UKRAINE IN INTERNATIONAL PISA-2018 TESTING AND OBJECTIVE ANALYSIS OF RESULTS." In Priority areas for development of scientific research: domestic and foreign experience. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-049-0-20.

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The relevance of our research is that for the successful development of the country in the nearest future, it is necessary to assess adequately the situation reflecting the level of knowledge of Ukrainian schoolchildren in comparison with other countries. The progress and economy of countries is very dependent on the quality of the educational system and the scientific complex. A competition in education began to exist among the traditional forms of competitions among the states. Developed countries make attempts to attract the best youth from other countries that’s why the purpose of the study is to investigate the problem of pedagogical measuring. The objective of our study is to analyze and compare students’ educational achievements in international measurements. There are many reasons to determine the importance of qualitative and quantitative measuring of educational systems and for this purpose, developed countries have organized the international testing of pupils of all ages. The article focuses on reading skills among pupils of elementary school (PIRLS testing), knowledge of pupils of the 4th and 8th forms in mathematics and sciences of nature (TIMSS testing), and a complex measuring of the «readiness for life – XXI» of 15-year-old students (PISA) – Programme for International Student Assessment). Ukraine took part for the first time in the international PISA-2018 test – a comprehensive measurement of the readiness for life of Generation-Z students born in 2002. We offer an analysis of the reaction of Ukrainian educational administrators and experts to the results of intensive two-hour measurements of knowledge and abilities of many hundreds of our adolescents from secondary and vocational schools posted on the Internet. We provide data for all tests 2000-2018 years for the first time in the pedagogical press of Ukraine. They will allow readers to evaluate their own evolution of the results of all tests. So you can find ways to improve their professional activities based on a combination of administratively recommended and own conclusions. We point to the beginning of changes in higher education and in the content of university quality ratings. The new rating (Impact Rankings 2020) also focuses on protecting humanity and environmental problems.
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Conference papers on the topic "Educational tests and measurements Victoria"

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Mattos, Garrett Anthony, and Donald Friedman. "Matched Pair Testing of Injury Potential in Repeatable Rollover Tests With the CRIS and JRS." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39032.

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The availability of repeatable dynamic rollover fixtures, like the Controlled Rollover Impact System (CRIS) and Jordan Rollover System (JRS), has changed the face of rollover structural and occupant protection development and evaluation. Tests performed with these devices have demonstrated scientific principles of occupant protection and injury potential which were previously resolvable only by expert rhetoric. Matched-pair experiments with instrumentation measuring dynamic roof crush and dummy injury metrics are now possible. The effectiveness of occupant protection features such as padding, window curtain airbags, belt pretensioners and headrests are qualitatively and quantitatively measureable. The sensitivity of rollover parameters themselves and their effect on injury potential can be determined by tests with different roll rates, pitch angles, impact angles and drop heights. Simulating injury potential to humans with ultimately biofidelic dummy musculature can also be demonstrated. This paper presents two matched pair test sets performed on the CRIS and two matched pair test sets performed on the JRS. The matched pair test sets performed on the CRIS compare the dummy injury measures in reinforced and production versions of the 1998 Ford Crown Victoria and the 1996 Chevrolet Blazer. The CRIS test of the matched pair Crown Victoria vehicles has been presented previously in a paper by Moffatt et al [1]. The matched pair tests that were performed on the JRS were conducted to study the effect of a reinforced roof on dummy injury measures. These tests, performed on production and reinforced versions of the 1998 Ford Explorer and the 1999 Hyundai Sonata, included the measurements of road loads, roof crush and crush speed, dummy upper and lower neck loads, belt loads, as well as the movement of the vehicle during the test.
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Jelonek, Jonas, Jonas Stephan, David Bochmann, and Lars Gebken. "BEXUS30 – ELFI: Measuring Schumann resonances in the atmosphere." In Symposium on Space Educational Activities (SSAE). Universitat Politècnica de Catalunya, 2022. http://dx.doi.org/10.5821/conference-9788419184405.043.

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The ELFI project was one of nine BEXUS experiments carried in two stratospheric balloons in 2021. The aim of the experiment was to develop a system for the non-stationary measurement of electromagnetic waves in the extremely low frequency range. The Schumann resonances that are part of this range are especially important for meteorological research. For the planned use of the system on a stratospheric balloon, various requirements and aspects regarding the measurement environment had to be considered during the development. The system is based on a magnetic loop antenna connected to a signal processing unit, the Analog Front-End. The antenna has special characteristics to enable the measurement of Schumann resonances. Due to the necessary high sensitivity of the antenna, a deployment mechanism was developed to lower the antenna for the measurement, thus reducing the influence of interference from the electronics or actuators of other experiments on the gondola. After the balloon is launched, the mechanism is extended, and the antenna is lowered below the gondola. The Analog Front-End has several stages that filter, amplify and digitalize the signal measured with the antenna. An on-board computer, built from reliable general-purpose hardware, performs the measurement, organizes and stores the measurement data, and provides communication with the ground station. Hence, monitoring and control of the experiment through the ground station was possible. In addition, an algorithm for automatic gain control was integrated to allow flexible measurement of different amplitudes. In several testing periods the system was validated for functionality and reliability. Through numerous preliminary tests, frequencies from reference sources could be detected, e.g., 50 Hz of the power supply network or 16.67 Hz of the railroad power supply. Underground measurements confirmed that the system is suitable for detecting low frequencies. Furthermore, the system was tested and confirmed to be usable under extreme conditions like low temperatures and low air pressures. The developed deployment mechanism with scissor arms was proved to be robust and flexible. Both hardware and software worked as expected and are reliable and adaptable to different conditions. During final tests in an almost interference-free area our system was able to record optimal signals, in which the Schumann resonances could be detected. Based on these successful results, the system was ready to be deployed on the stratospheric balloon to perform measurements in the atmosphere
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Eschelmüller, V., A. Stren, M. Issa, J. Bauer, A. Goswami, E. Vitztum, K. Repän, W. Treberspurg, and C. Scharlemann. "Development of a CubeSat CLIMBing to the Van-Allen belt." In Symposium on Space Educational Activities (SSAE). Universitat Politècnica de Catalunya, 2022. http://dx.doi.org/10.5821/conference-9788419184405.048.

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Based on its successful CubeSat mission PEGASUS, the University of Applied Sciences Wiener Neustadt (FHWN) is preparing its new CubeSat mission called CLIMB. CLIMB is a 3U CubeSat that will be launched to a low, circular orbit of about 500 km. Using a Field Emission Electric Propulsion (FEEP) system commercialized by the company ENPULSION, the satellite will be lifted to an elliptical orbit with its apogee around 1000 km – well inside the inner Van Allen belt. During its 1.5 yearlong ascent and its operation in the Van Allen belt, the satellite will continuously monitor the space radiation with a RadFET dosimeter payload and the impact on CLIMB’s subsystems. Comparisons with radiation testing on ground will allow the assessment of the capability of ground tests to predict effects of space radiation on CubeSat subsystems. The operation of the propulsion system will raise the satellite’s apogee on average 16 times a day. A comprehensive analysis has been conducted to assess its collision probability throughout its mission time. Using various tools, provided by ESA (CROC, MASTER and the DRAMA ARES python package), the collision probability for the entire mission duration (~3 years) was calculated to be 3.38 × 10-5, i.e. a magnitude smaller than the requested probability of 10-4. The second payload of CLIMB is an anisotropic magnetoresistance (AMR) magnetometer with a, for CubeSats high, sensitivity of about 10 nT RMS. The first results of measurements with this COTS based magnetometer are presented as well as experimental assessments of the satellite’s magnetic cleanliness. The benign thermal conditions on CubeSats operating close to Earth are complicated by the relatively high-power propulsion system onboard CLIMB. Detailed numerical analysis (ANSYS, ESATAN) and experimental verifications resulted in the identification of possible methods to deal with up to 18 W of dissipated electric power. The main heat sources are the thruster and the battery unit, during thruster operation
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Fernandez Capon, Lara Pilar, Marco Sobrino Hidalgo, Oriol Milian, Andrea Aguilella Merelas, Arnau Solanellas Bofarull, Marc Badia Ballús, Joan Francesc Muñoz Martin, Juan Adrián Ruiz De Azúa Ortega, Miquel Sureda Anfres, and Adriano José Camps Carmona. "Deployment mechanism for an L-Band Helix antenna on-board the 3Cat-4 1U CubeSat." In Symposium on Space Educational Activities (SSAE). Universitat Politècnica de Catalunya, 2022. http://dx.doi.org/10.5821/conference-9788419184405.072.

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Earth Observation (EO) is key for climate and environmental monitoring at global level, and in specific regions where the effects of global warming are more noticeable, such as in polar regions, where ice melt is also opening new commercial maritime routes. Soil moisture is also useful for agriculture and monitoring the advance of desertification, as well as biomass and carbon storage. Global Navigation Satellite System - Reflectometry (GNSS-R) and L-band microwave Radiometry are passive microwave remote sensing techniques that can be used to perform these types of measurements regardless of the illumination and cloud conditions, and -since they are passive- they are well suited for small satellites, where power availability is a limiting factor. GNSS-R was tested from space onboard the UK-DMC and the UK TechDemoSat-1, and several missions have been launched using GNSS-R as main instrument, as CyGNSS, BuFeng-1, or the FSSCAT [1] mission. These missions aim at providing soil moisture [2], ocean wind speed [3], and flooding mapping of the Earth. L-band microwave radiometry data has also been retrieved from space with SMOS and SMAP missions, obtaining sea ice thickness, soil moisture, and ocean salinity data [4]. The 3Cat-4 mission was selected by the ESA Academy "Fly your Satellite" program in 2017. It aims at combining both GNSS-R and L-band Microwave Radiometry at in a low-power and cost-effective 1-Unit (1U) satellite. Moreover, the 3Cat-4 can also detect Automatic Identification System (AIS) signals from vessels. The single payload is the Flexible Microwave Payload 1 (FMPL-1) [5] that performs the signal conditioning and signal processing for GNSS-R, L-Band microwave radiometry and AIS experiments. The spacecraft has three payload antennas: (1) a VHF monopole for AIS signals; (2) an uplooking antenna for the direct GPS signals; (3) a downlooking antenna that captures reflected GPS signals, and for the Microwave Radiometer. The downlooking antenna is a deployable helix antenna called the Nadir Antenna and Deployment Subsystem (NADS) which has a volume of less than 0,3U when stowed, achieving an axial length of more than 500 mm when deployed. As part of this mission, the design of the NADS antenna, its RF performance, as well as the environmental tests performed in terms of structural and thermal space conditions will be presented.
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Passmann, Maximilian, and Stefan aus der Wiesche. "Development and Commissioning of a Supersonic Blow Down Wind Tunnel for Educational Purposes." In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69196.

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A cost-effective test rig is presented that allows for the experimental investigation of supersonic flows for educational purposes. The individual units for the test rig were designed and built by students as part of their degrees. The test rig allows for operating times up to 10 seconds and features a nozzle test section, that can house different test objects. The divergent part of the de Laval nozzle geometry is designed using the method of characteristics for planar two-dimensional supersonic flow. State of the art 3D printing technology has been utilized to manufacture the nozzle geometry. Both optical and pneumatic measurement techniques have been adopted for the current setup. A z-type schlieren setup with two parabolic mirrors is used to perform flow visualization. The entire run can be recorded with a digital high speed camera. Stagnation pressure and temperature are measured in the pressure reservoir. Measurements are used to demonstrate basic thermodynamic effects such as the depressurization of gas-filled pressure vessels. Schlieren photography is used to graphically derive the Mach number and some aspects of Mach waves, oblique shock waves, and expansion waves are discussed. Finally, some effects of surface roughness on the flow field are addressed in this paper. Initial tests with the untreated nozzle geometry led to a fine pattern of very weak oblique shock waves in the supersonic part of the nozzle, that were caused by the finite layer thickness of the printer.
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6

Wilson, Mark. "Keynote: Rethinking measurement for accountable assessment." In Research Conference 2021: Excellent progress for every student. Australian Council for Educational Research, 2021. http://dx.doi.org/10.37517/978-1-74286-638-3_13.

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The underlying model for most formal educational measurement (e.g. standardised tests) is based on a very simple model: the student takes a test (possibly alongside other students). The complications of there being an instructional plan, actual instruction, interpretation of the outcome, and formulation of next steps, are all bypassed in considering how to model the process of measurement. There are some standard exceptions, of course: a pre-test/post-test context will involve two measurements, and attention to gain score, or similar. However, if we wish to design measurement to hold to Lehrer’s (2021) definition of ‘accountable assessment’ – as ‘actionable information for improving classroom instruction’ – then this narrow conceptualisation must be extended. In this presentation, I will posit a simple model that reflects the simple one-test context described above, and then elaborate on it by adding in a) a framework for design of the assessments that is keyed to educational interpretation, b) further rounds of data collection that can indicate changes in a student’s underlying ability, and c) provision for varied assessment modes that will allow for i) classroom-independent tasks that operate at the summative and meso levels, and ii) classroom-dependent tasks that operate at the micro level. The former are designed to provide a basis for triangulating student responses across different contexts, and the latter are designed to closely track the variation of student performance over time in a classroom instructional context. This framing will be exemplified in a in a K–5 elementary school that is seeking to improve the quality of instruction and students’ understandings of measure and arithmetic. The different levels of data collection will be instantiated by two different pieces of software, which operate at the micro level and the meso/summative levels respectively.
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7

Jackson, A. J. B., P. Laskaridis, and P. Pilidis. "A Test Bed for Small Aero Gas Turbines for Education and for University: Industry Collaboration." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-54334.

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Engine testing is a necessary but nonetheless expensive and time consuming process. Most of the facilities used to test an engine at sea level static conditions are enclosed test beds. In these facilities the existence of secondary mass flow within the test chamber and around the engine gives rise to various drag components that affect the thrust measurements. For this reason, the net thrust measured in an indoor test bed is lower than the true gross thrust delivered by the engine and measured during outdoor tests. Thrust correction factors, therefore, need to be calculated and applied. For the past five years Cranfield University has been involved in a research study evaluating the performance of gas turbines in test beds, and this work continues. Recently, Cranfield purchased a small gas turbine and invested in the design and construction of a small test bed facility that provides experimental data for the support of the analytical computational fluid dynamics (CFD) analysis. The purpose of this micro-turbojet and test bed facility is to mimic large scale facilities and provide appropriate experimental data for calculating thrust correction factors. The data are also used together with three dimensional CFD models to provide a better understanding of the aerodynamic and engine performance issues involved. Tests have been completed successfully and the facility is capable of detecting the small thrust differences between indoor and outdoor test. Thrust correction factors have been derived through a back to back process. This is an excellent result showing that the equipment is performing as designed. In addition to providing useful results and conclusions in support of ongoing research the facility is also used for postgraduate projects focusing on the performance of small engines in test beds. Analytical design tolls such as commercial CFD and in house engine performance programs are used to predict engine performance and parameters. The results are then validated against the test data. This paper describes the present state of technical progress, which is under development. Its other purpose is to describe the educational value of the analytical and experimental techniques, the objective of which is to mimic the overall engine development process.
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