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Thematische Bibliographien / Frequency response test

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Auswahl der wissenschaftlichen Literatur zum Thema „Frequency response test“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 16. Februar 2022

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Zeitschriftenartikel zum Thema "Frequency response test"

1

Maletic, Mladen, Hrvoje Domitrovic und Ivan Djurek. „Frequency response measurement with composed audio test signal“. Journal of the Acoustical Society of America 105, Nr. 2 (Februar 1999): 1367. http://dx.doi.org/10.1121/1.426472.

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Saunders, R. M. „Synchronous-machine standstill frequency-response test data analysis“. IEEE Transactions on Energy Conversion 6, Nr. 3 (1991): 564–71. http://dx.doi.org/10.1109/60.84336.

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Yudaningtyas, Erni, Achsanul Khabib, Waru Djuriatno, Zakiyah Amalia und Ramadhani Kurniawan Subroto. „Low-frequency response test device of electret condenser microphone“. TELKOMNIKA (Telecommunication Computing Electronics and Control) 18, Nr. 3 (01.06.2020): 1368. http://dx.doi.org/10.12928/telkomnika.v18i3.14831.

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Banaszak, Szymon, und Wojciech Szoka. „Cross Test Comparison in Transformer Windings Frequency Response Analysis“. Energies 11, Nr. 6 (25.05.2018): 1349. http://dx.doi.org/10.3390/en11061349.

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Norman, K. D. „Multiple-bump roadholding test: Description and metric interpretation“. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, Nr. 4 (01.04.2002): 251–58. http://dx.doi.org/10.1243/0954407021529084.

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Road vehicle roadholding comprehends directional response to road inputs. This response is primarily a function of the roadway's frequency content and amplitude and the vehicle's inertial, suspension and tyre characteristics. There is also evidence that suspension kinematic and compliance steer properties can have a significant contribution (Rill, G. Steady state cornering on uneven roadways. SAE paper 860575, 1986). The multiple-bump roadholding test measures vehicle response to a periodic bump of varying frequency while cornering. By driving a vehicle at different speeds over a set of periodic bumps placed on circles of different diameters, it is possible to observe the response to different fundamental bump excitation frequencies at a particular lateral acceleration. This paper describes the test procedure, measured vehicle responses and the metrics calculated.

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Wen, Chang Bao, Tiao Yang, Cheng Fei Xue und Yong Feng Ju. „Automatic Test System for Frequency Response Characteristics of SAW Device“. Applied Mechanics and Materials 644-650 (September 2014): 1201–4. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.1201.

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To solve complex measurement and difficult remote operation in the test for frequency response characteristic of SAW device, an automatic test system for frequency response characteristic of SAW device based on vector network analyzer is proposed. The system consists of the vector network analyzer, the crossover cable, the computer, the fixtures and the SAW device. The user interface of test system is developed with the VB language. By means of calling the VISA-COM library, the SCPI commands can send to the vector network analyzer. Many functions of the automatic test system for frequency response characteristic of SAW device include the settings of measurement parameters, the measurement calibration, the data storage, the data display, the data transmission, the marker analysis and the data output. By the actual measurement of a SAW device with the center frequency at 101.764MHz, the experimental results show that the transmission loss of SAW device is-27.532dB, and the reflection loss is-7.715 dB.

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Hansen, A. C., und T. E. Hausfeld. „Frequency-Response Matching to Optimize Wind-Turbine Test Data Correlation“. Journal of Solar Energy Engineering 108, Nr. 3 (01.08.1986): 246–51. http://dx.doi.org/10.1115/1.3268100.

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Pre-averaging is often applied to wind turbine test data to improve correlation between wind speed and power output data. In the past, trial and error or intuition have been used in the selection of pre-averaging time and researchers and institutions have differed widely in their pre-averaging practice. In this paper a standardized method is proposed for selection of the optimum pre-averaging time. The method selects an averaging time such that the test data are low-pass-filtered at the same frequency as the response frequency of the test wind turbine/anemometer system. A theoretial method is provided for estimation of the wind system transfer function as a function of the anemometer location, rotor moment of inertia, the stiffness of the connection between the rotor and the electrical grid, hub height, rotor speed and wind speed. The method is based in proven theory, repeatable, easy to use and applicable to a wide range of wind turbines and test conditions. Results of the transfer function predictions are compared with the measured response of two wind systems. Agreement between the predicted and measured response is completely adequate for the purposes of the method. Example results of calculated averaging times are presented for several wind turbines. In addition, a case study is used to demonstrate the dramatic effects of test design and data analysis methods on the results of a power coefficient measurement.

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Belqorchi, Abdelghafour, Ulas Karaagac, Jean Mahseredjian und Innocent Kamwa. „Standstill Frequency Response Test and Validation of a Large Hydrogenerator“. IEEE Transactions on Power Systems 34, Nr. 3 (Mai 2019): 2261–69. http://dx.doi.org/10.1109/tpwrs.2018.2889510.

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9

Wang, Dongyang, Lijun Zhou, Xuejiao Chen, Junfei Jiang und Lujia Wang. „Modelling the low‐frequency dielectric response test of insulation oil“. IET Electric Power Applications 11, Nr. 3 (März 2017): 323–30. http://dx.doi.org/10.1049/iet-epa.2016.0673.

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10

Alexander, Joshua M. „The S-SH Confusion Test and the Effects of Frequency Lowering“. Journal of Speech, Language, and Hearing Research 62, Nr. 5 (21.05.2019): 1486–505. http://dx.doi.org/10.1044/2018_jslhr-h-18-0267.

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PurposeFrequency lowering in hearing aids can cause listeners to perceive [s] as [ʃ]. The S-SH Confusion Test, which consists of 66 minimal word pairs spoken by 6 female talkers, was designed to help clinicians and researchers document these negative side effects. This study's purpose was to use this new test to evaluate the hypothesis that these confusions will increase to the extent that low frequencies are altered.MethodTwenty-one listeners with normal hearing were each tested on 7 conditions. Three were control conditions that were low-pass filtered at 3.3, 5.0, and 9.1 kHz. Four conditions were processed with nonlinear frequency compression (NFC): 2 had a 3.3-kHz maximum audible output frequency (MAOF), with a start frequency (SF) of 1.6 or 2.2 kHz; 2 had a 5.0-kHz MAOF, with an SF of 1.6 or 4.0 kHz. Listeners' responses were analyzed using concepts from signal detection theory. Response times were also collected as a measure of cognitive processing.ResultsOverall, [s] for [ʃ] confusions were minimal. As predicted, [ʃ] for [s] confusions increased for NFC conditions with a lower versus higher MAOF and with a lower versus higher SF. Response times for trials with correct [s] responses were shortest for the 9.1-kHz control and increased for the 5.0- and 3.3-kHz controls. NFC response times were also significantly longer as MAOF and SF decreased. The NFC condition with the highest MAOF and SF had statistically shorter response times than its control condition, indicating that, under some circumstances, NFC may ease cognitive processing.ConclusionsLarge differences in the S-SH Confusion Test across frequency-lowering conditions show that it can be used to document a major negative side effect associated with frequency lowering. Smaller but significant differences in response times for correct [s] trials indicate that NFC can help or hinder cognitive processing, depending on its settings.

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Dissertationen zum Thema "Frequency response test"

1

El-Fandi, Mahmoud. „New multisymbol signals and recursive algorithms for frequency response measurement“. Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248819.

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Jeon, Byung Ho. „Proposed automobile steering wheel test method for vibration“. Thesis, Brunel University, 2010. http://bura.brunel.ac.uk/handle/2438/4623.

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This thesis proposes a test method for evaluating the perceived vibration which occurs at the driver's hand in automotive steering wheel interface. The objective of the research was to develop frequency weightings for quantifying the human perception of steering wheel hand-arm vibration. Family of frequency weightings were developed from equal sensation curves obtained from the psychophysical laboratory experimental tests. The previous literature suggests that the only internationally standardised frequency weighting Wh is not accurate to predict human perception of steering wheel hand-arm vibration (Amman et. al, 2005) because Wh was developed originally for health effects, not for the human perception. In addition, most of the data in hand-arm vibration are based upon responses from male subjects (Neely and Burström, 2006) and previous studies based only on sinusoidal stimuli. Further, it has been continuously suggested by researchers (Gnanasekarna et al., 2006; Morioka and Griffin, 2006; Ajovalasit and Giacomin, 2009) that only one weighting is not optimal to estimate the human perception at all vibrational magnitudes. In order to address these problems, the investigation of the effect of gender, body mass and the signal type on the equal sensation curves has been performed by means of psychophysical laboratory experimental tests. The test participants were seated on a steering wheel simulator which consists of a rigid frame, a rigid steering wheel, an automobile seat, an electrodynamic shaker unit, a power amplifier and a signal generator. The category-ratio Borg CR10 scale procedure was used to quantify the perceived vibration intensity. A same test protocol was used for each test and for each test subject. The first experiment was conducted to investigate the effect of gender using sinusoidal vibration with 40 test participants (20 males and 20 females). The results suggested that the male participants provided generally lower subjective ratings than the female participants. The second experiment was conducted using band-limited random vibration to investigate the effect of signal type between sinusoidal and band-limited random vibration with 30 test participants (15 males and 15 females). The results suggested that the equal sensation curves obtained using random vibration were generally steeper and deeper in the shape of the curves than those obtained using sinusoidal vibration. These differences may be due to the characteristics of random vibration which produce generally higher crest factors than sinusoidal vibration. The third experiment was conducted to investigate the effect of physical body mass with 40 test participants (20 light and 20 heavy participants) using sinusoidal vibration. The results suggested that the light participants produced generally higher subjective ratings than the heavy participants. From the results it can be suggested that the equal sensation curves for steering wheel rotational vibration differ mainly due to differences of body size rather than differences of gender. The final experiments was conducted using real road signals to quantify the human subjective response to representative driving condition and to use the results to define the selection method for choosing the adequate frequency weightings for the road signals by means of correlation analysis. The final experiment was performed with 40 test participants (20 light and 20 heavy participants) using 21 real road signals obtained from the road tests. From the results the hypothesis was established that different amplitude groups may require different frequency weightings. Three amplitude groups were defined and the frequency weightings were selected for each amplitude group. The following findings can be drawn from the research: • the equal sensation curves suggest a nonlinear dependency on both the frequency and the amplitude. • the subjective responses obtained from band-limited random stimuli were steeper and the deeper in the shape of the equal sensation curves than those obtained using sinusoidal vibration stimuli. • females provided higher perceived intensity values than the males for the same physical stimulus at most frequencies. • light test participants provided higher perceived intensity than the heavy test participants for the same physical stimulus at most frequencies. • the equal sensation curves for steering wheel rotational vibration differ mainly due to differences in body size, rather than differences of gender. • at least three frequency weightings may be necessary to estimate the subjective intensity for road surface stimuli.

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Hall, Melissa A. „Characterization of Vibration Test Fixtures using Modal Analysis“. University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627664784639955.

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Park, Doh Young. „Parameter identification of salient-pole synchronous machines using the SSFR, standstill frequency response, test“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq20579.pdf.

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Zhao, Sen Peng. „Design and implementation of a frequency response test system for instrument voltage transformer performance studies“. Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/design-and-implementation-of-a-frequency-response-test-system-for-instrument-voltage-transformer-performance-studies(3e65a4d8-937e-4a3d-8308-734e03f29255).html.

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Power system harmonics are always an important issue in power networks as they can cause many negative impacts, such as equipment thermal stress, on installations within power networks. Recently, with the increasing connections of power electronic devices based Renewable Energy Source (RES) and High Voltage Direct Current (HVDC) transmission applications, harmonics in power networks, especially high frequency harmonics (>50th order or 2.5 kHz) are on the rise. Currently, the majority of conventional VTs, such as Wound-type Voltage Transformers (WVT) and Capacitor Voltage Transformers (CVT), are widely installed and used in High Voltage (HV) and Extra High Voltage (EHV) power networks for voltage measurement. Since most of them were mainly designed to measure voltage with the required accuracy at the fundamental frequency (i.e. 50Hz in the UK), they are limited to measuring high frequency harmonics due to the coupling of their internal inductive and capacitive elements. To achieve high frequency harmonic measurements, voltage measurement devices with wide frequency bandwidths are required. Recently, non-conventional VTs, such as optical voltage transducers, are commercially available, which could provide accurate voltage measurements over a wide range of frequency. However, before they can be considered by any power utilities, their frequency response performances must be tested at a rated fundamental voltage with required minimum harmonic injections from 100Hz to 5 kHz. This must require a test system which should be capable of providing a rated fundamental voltage up to 400kV with controllable harmonic injections at required levels from 100Hz to 5 kHz. Therefore, the objective of this project is to design and implement such a test system in the National Grid (NG) HV laboratory at the University of Manchester. However, the design and the implementation of such a test system bring many challenges; for instance, a lack of adequate equipment and considerable power to provide the required harmonic injections above 0.5% to the test object.In this thesis, an Instrument Voltage Transformer Frequency Response (VTFR) test system with three different voltage power source designs is presented; The voltage power source designs are: (i) Design 1 is based on a single power source inductive coupling method to provide both a rated fundamental voltage and controllable harmonics; (ii) Design 2 is based on two separate voltage power sources inductive coupling method to provide both a rated fundamental voltage and controllable harmonics; and (iii) Design 3 is based on two separate voltage power sources capacitive coupling method to provide both the rated fundamental voltage and controllable harmonics. A hybrid approach, which combines the VTFR test system with both the voltage power sources Design 2 and 3, is proposed for testing the frequency response of any type of VTs at their rated fundamental voltages with 1% harmonic injections from 100Hz to 5 kHz. The proposed VTFR test system with voltage power source designs were firstly validated at a relatively low voltage of 33kV in the HV laboratory. Then three different VTFR test systems were constructed based on available equipment for testing VTs from 11kV to 400kV. An 11kV, a 33kV WVT and a 400kV WVT and a 275kV CVT were tested. The test results were analyzed, compared and discussed. The models of the test systems were also established and simulated. Simulation results were analysed, compared and discussed.

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Bodnaruc, Alexandra. „Sensory Evaluation, Frequency of Food Consumption and Metabolic Responses to a Test Breakfast Meal in Middle-Aged Adults“. Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38094.

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Sigfridsson, Simon. „Is it possible to create an indistinguishable or equal frequency response between a digital equalizer and an analog emulating equalizer plug-in?“ Thesis, Luleå tekniska universitet, Medier ljudteknik och upplevelseproduktion och teater, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69129.

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This research examines if an indistinguishable, or equal, frequency response of a software plug-in that is emulating an analog equalizer can be reconstructed using a more standard digital equalizer such as one incorporated with a digital audio workstation (DAW). It is narrowed down to solely involve high frequency bands by analyzing the emulating plug-ins hi-shelving filters. A two-comparison forced choice ABX-test was conducted to verify the hypotheses and the results show that the difference between the original and the reconstructed hi-shelving filter was inaudible to the listening test participants. Further research and application for these findings is discussed

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Cierocka, Joanna, und Jiayue Tang. „Vibrational tests of preloaded rubber vibration isolators : A cam controlled displacement excitation“. Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-53703.

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Vibrations are very common phenomenon. It influences structures and generates acoustic noise which might be harmful to human beings. The vibration isolator was invented to reduce the effect from vibrations. However, the behavior of rubber material, which many vibration isolators are made of, is hard to predict. Consequently, vibration tests are needed to obtain the dynamic properties of rubber isolator.In this case, a six-year old LORD 2204-5 rubber isolator provided by Atlas Copco was tested. The aim of this paper is to obtain the FRF (Frequency Response Function) diagram which can describe the property of the rubber material. Moreover, the influence of aging of rubber material on the dynamic properties was studied.As the vibration test should simulate the working environment of the isolators that are both a static load from the structure and a dynamic force from the engine, a new excitation method was designed. The camshaft with the shape of an epitrochoid induced the sinusoidal signal of the isolator and the frame transferred the static load from the hydraulic machine. The artificial aging was performed in a hot air oven in 90°C for 42 hours, which according to Arrhenius equation should be equivalent to six years of natural aging. The vibration isolator was tested again after being aged.The obtained data showed that the aging process decreased the stiffness of the material. The results were corresponding with other studies regarding aging of rubber.

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Bladh, Johan. „Hydropower generator and power system interaction“. Doctoral thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-182188.

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After decades of routine operation, the hydropower industry faces new challenges. Large-scale integration of other renewable sources of generation in the power system accentuates the role of hydropower as a regulating resource. At the same time, an extensive reinvestment programme has commenced where many old components and apparatus are being refurbished or replaced. Introduction of new technical solutions in existing power plants requires good systems knowledge and careful consideration. Important tools for research, development and analysis are suitable mathematical models, numerical simulation methods and laboratory equipment. This doctoral thesis is devoted to studies of the electromechanical interaction between hydropower units and the power system. The work encompasses development of mathematical models, empirical methods for system identification, as well as numerical and experimental studies of hydropower generator and power system interaction. Two generator modelling approaches are explored: one based on electromagnetic field theory and the finite element method, and one based on equivalent electric circuits. The finite element model is adapted for single-machine infinite-bus simulations by the addition of a network equivalent, a mechanical equation and a voltage regulator. Transient simulations using both finite element and equivalent circuit models indicate that the finite element model typically overestimates the synchronising and damping properties of the machine. Identification of model parameters is performed both numerically and experimentally. A complete set of equivalent circuit parameters is identified through finite element simulation of standard empirical test methods. Another machine model is identified experimentally through frequency response analysis. An extension to the well-known standstill frequency response (SSFR) test is explored, which involves measurement and analysis of damper winding quantities. The test is found to produce models that are suitable for transient power system analysis. Both experimental and numerical studies show that low resistance of the damper winding interpole connections are vital to achieve high attenuation of rotor angle oscillations. Hydropower generator and power system interaction is also studied experimentally during a full-scale startup test of the Nordic power system, where multiple synchronised data acquisition devices are used for measurement of both electrical and mechanical quantities. Observation of a subsynchronous power oscillation leads to an investigation of the torsional stability of hydropower units. In accordance with previous studies, hydropower units are found to be mechanically resilient to subsynchronous power oscillations. However, like any other generating unit, they are dependent on sufficient electrical and mechanical damping. Two experimentally obtained hydraulic damping coefficients for a large Francis turbine runner are presented in the thesis.

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Zhang, Yan. „The impact of midbrain cauterize size on auditory and visual responses' distribution“. unrestricted, 2009. http://etd.gsu.edu/theses/available/etd-04202009-145923/.

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Thesis (M.S.)--Georgia State University, 2009.
Title from file title page. Yu-Sheng Hsu, committee chair; Xu Zhang, Sarah. L. Pallas, committee members. Description based on contents viewed June 12, 2009. Includes bibliographical references (p. 37). Appendix A: SAS code: p. 38-53.

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Bücher zum Thema "Frequency response test"

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Center, Langley Research, und United States. National Aeronautics and Space Administration., Hrsg. Independent analysis of the space station node modal test data. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1997.

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Frequency tables for scoring Rorschach responses: Code charts, normal and rare details, F+ and F- responses, popular responses, original responses. 5. Aufl. Western Psychological Services, 1986.

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Willis, J. R. Derivation of induction motor models from standstill frequency response tests. Electric Power Research Institute, 1991.

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Elwood, Mark. Selection of subjects for study. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199682898.003.0005.

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This chapter discussed principles of subject selection and defines target, source, eligible, entrant and participant populations. Selection issues and selection bias may affect internal validity, external validity, and modify the hypothesis being tested. It shows methods to reduce selection biases and to define participation rate and response rate. Principles for the selection of the exposed or test group and the comparison groups are shown for all studies. In randomised trials, intention-to-treat analysis, contamination, blinding, data monitoring, stopping rules, the CONSORT format, and trial registration are discussed. For observational studies, it shows the purpose of control groups, issues of definition and choice of controls, institutional and community controls, and frequency and individual matching. Many examples are given.

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B, Toscano William, DeRoshia Charles und Ames Research Center, Hrsg. An evaluation of the frequency and severity of motion sickness incidences in personnel within the Command and Control Vehicle (C2V). Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1998.

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Niaudet, Patrick, und Alain Meyrier. Minimal change disease. Herausgegeben von Neil Turner. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199592548.003.0056_update_001.

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Minimal change disease is characteristically responsive to high-dose corticosteroids. As this is the most common cause of nephrotic syndrome in children, and responses are usually prompt, response to 60 mg/m2/day of oral prednisolone (max. 80 mg) is often used as a diagnostic test. Adults respond more slowly and have a wider differential diagnosis, and often a high risk of side effects, so therapy is not recommended without confirmation by renal biopsy. Then first-line treatment is again prednisolone or prednisone, at 1 mg/kg/day (max. 60 mg). KDIGO and other treatment protocols recommend 6 weeks treatment at full dose then 6 weeks at half dose. Shorter protocols seem to increase the risk of relapse. Children frequently have a relapsing pattern of disease which may be managed by less extreme steroid exposure, but for which second-line therapies may be needed to avoid severe steroid side effects. This can arise in adults too. Some children and adults have steroid-dependent or steroid-resistant disease, leading to earlier initiation of treatment with second-line agents. These include levamisole, calcineurin inhibitors, mycophenolate mofetil, and anti-B cell antibodies. The evidence for these and recommendations for relapsing/resistant disease are given in this chapter.

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Cortigiani, Lauro, und Eugenio Picano. Stress echocardiography. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0013.

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Stress echocardiography is a widely used method for assessing coronary artery disease, due to the high diagnostic and prognostic value. While inducible ischaemia predicts an unfavourable outcome, its absence is associated with a low risk of future events. The evaluation of coronary flow reserve by Doppler adds prognostic information to that of standard stress test. Stress echocardiography is indicated in cases when exercise testing is unfeasible, uninterpretable, or gives ambiguous result, and when ischaemia during the test is frequently a false positive response, as in hypertensives, women and patients with left ventricular hypertrophy. Viability detection represents another application of stress echocardiography. The documentation of viable myocardium predicts an improved outcome following revascularization in ischaemic and following resynchronization therapy in idiopathic cardiomyopathy. Moreover, stress echocardiography can aid significantly in clinical decision making in patients with valvular heart disease through dynamic assessment of mitral insufficiency, transvalvular gradients and pulmonary artery systolic pressure. Among the various stress modalities, exercise is safer than pharmacologic stress, in which major complications are three times more frequent with dobutamine than with dipyridamole. Stress echocardiography provides similar accuracy than perfusion scintigraphy but a substantially lower cost, without environmental impact and with no radiation biohazards for the patient.

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Fhima, Ilanah, und Dev S. Gangjee. The Confusion Test in European Trade Mark Law. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780199674336.001.0001.

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Historically, likelihood of confusion has been the core infringement test for trade mark law, and it remains the most frequently applied test in infringement actions by far. However, there are noticeable differences in how it is applied by the Court of Justice of the European Union (CJEU), the General Court, and national courts; and questionable outcomes when it is applied in novel situations. This book is the first comprehensive and systematic account of the confusion test within the harmonised European trade mark system. It considers how the test is applied by national trade mark registries across EU member states, by the European Union Intellectual Property Office (EUIPO), by national courts, and by the CJEU. It offers practical guidance, while also evaluating the viability of more recent developments such as initial-interest confusion, post-sale confusion and consumer responses to uses of trade marks on the internet. The book analyses three distinct strata of legal doctrine: the decisions of the CJEU, including the General Court; the extensive body of decisions by EUIPO; and the application of harmonised trade mark law by courts of member states, focusing on leading decisions as well as wayward ones. It also draws upon the legal position in the US to illuminate these issues.

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Hook, Sharon, Graeme Batley, Michael Holloway, Paul Irving und Andrew Ross, Hrsg. Oil Spill Monitoring Handbook. CSIRO Publishing, 2016. http://dx.doi.org/10.1071/9781486306350.

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Oil spills can be difficult to manage, with reporting frequently delayed. Too often, by the time responders arrive at the scene, the slick has moved, dissolved, dispersed or sunk. This Oil Spill Monitoring Handbook provides practical advice on what information is likely required following the accidental release of oil or other petroleum-based products into the marine environment. The book focuses on response phase monitoring for maritime spills, otherwise known as Type I or operational monitoring. Response phase monitoring tries to address the questions – what? where? when? how? how much? – that assist responders to find, track, predict and clean up spills, and to assess their efforts. Oil spills often occur in remote, sensitive and logistically difficult locations, often in adverse weather, and the oil can change character and location over time. An effective response requires robust information provided by monitoring, observation, sampling and science. The Oil Spill Monitoring Handbook completely updates the Australian Maritime Safety Authority’s 2003 edition of the same name, taking into account the latest scientific advances in physical, chemical and biological monitoring, many of which have evolved as a consequence of major oil spill disasters in the last decade. It includes sections on the chemical properties of oil, the toxicological impacts of oil exposure, and the impacts of oil exposure on different marine habitats with relevance to Australia and elsewhere. An overview is provided on how monitoring integrates with the oil spill response process, the response organisation, the use of decision-support tools such as net environmental benefit analysis, and some of the most commonly used response technologies. Throughout the text, examples are given of lessons learned from previous oil spill incidents and responses, both local and international. General guidance of spill monitoring approaches and technologies is augmented with in-depth discussion on both response phase and post-response phase monitoring design and delivery. Finally, a set of appendices delivers detailed standard operating procedures for practical observation, sample and data collection. The Oil Spill Monitoring Handbook is essential reading for scientists within the oil industry and environmental and government agencies; individuals with responder roles in industry and government; environmental and ecological monitoring agencies and consultants; and members of the maritime sector in Australia and abroad, including officers in ports, shipping and terminals.

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Proudfoot, Diane, und B. Jack Copeland. Artificial Intelligence. Herausgegeben von Eric Margolis, Richard Samuels und Stephen P. Stich. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780195309799.013.0007.

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In this article the central philosophical issues concerning human-level artificial intelligence (AI) are presented. AI largely changed direction in the 1980s and 1990s, concentrating on building domain-specific systems and on sub-goals such as self-organization, self-repair, and reliability. Computer scientists aimed to construct intelligence amplifiers for human beings, rather than imitation humans. Turing based his test on a computer-imitates-human game, describing three versions of this game in 1948, 1950, and 1952. The famous version appears in a 1950 article inMind, ‘Computing Machinery and Intelligence’ (Turing 1950). The interpretation of Turing's test is that it provides an operational definition of intelligence (or thinking) in machines, in terms of behavior. ‘Intelligent Machinery’ sets out the thesis that whether an entity is intelligent is determined in part by our responses to the entity's behavior. Wittgenstein frequently employed the idea of a human being acting like a reliable machine. A ‘living reading-machine’ is a human being or other creature that is given written signs, for example Chinese characters, arithmetical symbols, logical symbols, or musical notation, and who produces text spoken aloud, solutions to arithmetical problems, and proofs of logical theorems. Wittgenstein mentions that an entity that manipulates symbols genuinely reads only if he or she has a particular history, involving learning and training, and participates in a social environment that includes normative constraints and further uses of the symbols.

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Buchteile zum Thema "Frequency response test"

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Weik, Martin H. „frequency-response test“. In Computer Science and Communications Dictionary, 653. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_7685.

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Isermann, Rolf, und Marco Münchhof. „Frequency Response Measurement for Periodic Test Signals“. In Identification of Dynamic Systems, 121–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-78879-9_5.

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Fagiani, Ramona, Elisabetta Manconi und Marcello Vanali. „Prediction of the Coupled Impedance from Frequency Response Data“. In Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry, Volume 8, 19–25. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30084-9_2.

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Edwards, Timothy S. „Implementation of Admittance Test Techniques for High-Precision Measurement of Frequency Response Functions“. In Topics in Experimental Dynamic Substructuring, Volume 2, 217–43. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6540-9_18.

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Rout, Anil Kumar, Santosh Kumar Hotta, Niranjan Sahoo, Pankaj Kalita und Vinayak Kulkarni. „Coaxial Thermal Probe for High-Frequency Periodic Response in an IC Engine Test Rig“. In Proceedings of the 7th International Conference on Advances in Energy Research, 805–13. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5955-6_76.

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Brötz, Nicolas, Manuel Rexer und Peter F. Pelz. „Mastering Model Uncertainty by Transfer from Virtual to Real System“. In Lecture Notes in Mechanical Engineering, 35–44. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_4.

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AbstractTwo chassis components were developed at the Technische Universität Darmstadt that are used to isolate the body and to reduce wheel load fluctuation.The frequency responses of the components were identified with a stochastic foot point excitation in a hardware-in-the-loop (HiL) simulation environment at the hydropulser. The modelling of the transmission behaviour influence of the testing machine on the frequency response was approximately represented with a time delay of $$10\,\mathrm {ms}$$ 10 ms in the frequency range up to $$25\,\mathrm {Hz}$$ 25 Hz . This is considered by a Padé approximation. It can be seen that the dynamics of the testing machine have an influence on the wheel load fluctuation and the body acceleration, especially in the natural frequency of the unsprung mass. Therefor, the HiL stability is analysed by mapping the poles of the system in the complex plane, influenced by the time delay and virtual damping.This paper presents the transfer from virtual to real quarter car to quantify the model uncertainty of the component, since the time delay impact does not occur in the real quarter car test rig. The base point excitation directly is provided by the testing machine and not like in the case of the HiL test rig, the compression of the spring damper calculated in the real-time simulation.

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Veretennikov, A. B. „Proximity Full-Text Searches of Frequently Occurring Words with a Response Time Guarantee“. In Mathematical Analysis With Applications, 377–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42176-2_37.

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„Microwave Filter Analysis and Design“. In Practical Approach to Substrate Integrated Waveguide (SIW) Diplexer, 72–108. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2084-0.ch003.

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A microwave filter is a two-port component usually employed when there is a need to control the frequency response at any given point in a microwave system. They provide transmission at certain frequencies, which are known as the passband frequencies, and attenuation at other frequencies, which are referred to as the stopband frequencies. The frequencies outside the passband are attenuated or reflected. Microwave filter is often named after the polynomial used to form its transfer function (i.e., Chebyshev, Butterworth [or maximally flat], Elliptical, etc.). The filter can be further sub-divided into four categorises (i.e., lowpass, highpass, bandstop, and bandpass filters) according to its frequency responses. This chapter gives a detailed discussion on filter classification and transfer function. It also covers the analysis, design, and implementation of a test microwave filter using the 21st century SIW transmission line. The simulation and measurement results of the test filter is also presented, compared, and discussed.

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Cheshire, William P. „Cardiovagal Reflexes“. In Clinical Neurophysiology, 661–76. Oxford University Press, 2009. http://dx.doi.org/10.1093/med/9780195385113.003.0039.

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Noninvasive cardiovascular tests are reliable and reproducible and are widely used to evaluate autonomic function in human subjects. The heart rate response to deep breathing is probably the most reliable test for assessing the integrity of the vagal afferent and efferent pathways to the heart. This is because respiratory sinus arrhythmia is a relatively pure test of cardiovagal function, whereas many other conditions, such as plasma volume, antecedent rest, and cardiac and peripheral sympathetic functions, factor into the Valsalva response. Heart rate variability to deep breathing is usually tested at a breathing frequency of 5 or 6 respirations per minute and decreases linearly with age. The Valsalva maneuver consists of a forced expiratory effort against resistance and produces mechanical (phases I and III) and reflex (phases II and IV) changes in arterial pressure and heart rate. When performed under continuous arterial pressure monitoring with a noninvasive technique, the Valsalva maneuver provides valuable information about the integrity of the cardiac parasympathetic, cardiac sympathetic, and sympathetic vasomotor outputs. The responses to the Valsalva maneuver are affected by the position of the subject and the magnitude and duration of the expiratory effort. In general, it is performed at an expiratory pressure of 40 mm Hg sustained for 15 seconds. The Valsalva ratio, the relationship between the maximal heart rate response during phase II (straining) and phase IV (after release of straining), has been considered a test of cardiac parasympathetic function. However, without simultaneous recording of arterial pressure, this may be misleading. An exaggerated decrease in arterial pressure during phase II suggests sympathetic vasomotor failure, whereas an absence of overshoot during phase IV indicates the inability to increase cardiac output and cardiac adrenergic failure.

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Kumar, Dhiraj, Sudipta Paitandi, Arunanshu Shekhar Kuar und Dipankar Bose. „Experimental Investigation on Laser Transmission Welding of Polycarbonate and Acrylic“. In Machine Learning Applications in Non-Conventional Machining Processes, 160–80. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3624-7.ch010.

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This chapter presents the effect of various process parameters, namely laser power, pulse frequency, and welding speed, on the weld shear strength and weld width using a diode laser system. Here, laser transmission welding of transparent polycarbonate and black carbon filled acrylic each of 2.8 mm thickness have been performed to create lap joint by using low power laser. Response surface methodology is applied to develop the mathematical model between the laser welding process parameters and the responses of weld joint. The developed mathematical model is tested for its adequacy using analysis of variance and other adequacy measures. It has been observed that laser power and welding speed are the dominant factor followed by frequency. A confirmation test has also been conducted to validate the experimental results at optimum parameter setting. Results show that weld strength of 34.3173 N/mm and weld width of 2.61547 mm have been achieved at optimum parameter setting using desirability function-based optimization technique.

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Konferenzberichte zum Thema "Frequency response test"

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Baer, Richard L. „Circular-edge spatial frequency response test“. In Electronic Imaging 2004, herausgegeben von Yoichi Miyake und D. Rene Rasmussen. SPIE, 2003. http://dx.doi.org/10.1117/12.524829.

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Grondin, J., M. Franke und D. Rabe. „Frequency response of a compressor test facility inlet“. In 36th AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-634.

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Costa, Bruno L., Carlos J. Gonzalez, Rafael G. Vaz, Odair L. Goncalez und Tiago R. Balen. „Influence of sampling frequency on TID response of SAR ADCs“. In 2020 IEEE Latin American Test Symposium (LATS). IEEE, 2020. http://dx.doi.org/10.1109/lats49555.2020.9093691.

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Valecillos, Baudilio, und Jorge Ramirez. „Evaluation of Lightning Impulse Test by Frequency Response Analysis“. In 2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America. IEEE, 2006. http://dx.doi.org/10.1109/tdcla.2006.311421.

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Pomeranz, Irith, und Sudhakar Reddy. „Fault Detection by Output Response Comparison of Identical Circuits Using Half-Frequency Compatible Sequences“. In 2006 IEEE International Test Conference. IEEE, 2006. http://dx.doi.org/10.1109/test.2006.297658.

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Lei Hao und C. Namuduri. „Modeling of an alternator using Stand Still Frequency Response Test“. In 2009 IEEE Vehicle Power and Propulsion Conference (VPPC). IEEE, 2009. http://dx.doi.org/10.1109/vppc.2009.5289564.

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Liu, Xing, Deliang Liang, Qiji Ze und Yanan Yu. „The frequency response of parallel misalignment in PMSM test bench“. In 2017 IEEE International Electric Machines and Drives Conference (IEMDC). IEEE, 2017. http://dx.doi.org/10.1109/iemdc.2017.8002242.

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Hill, Bryce, und John Morrison. „Steady State Frequency Response Utilizing an Enhanced Chirp Test Signal“. In 2019 IEEE Aerospace Conference. IEEE, 2019. http://dx.doi.org/10.1109/aero.2019.8741681.

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Mastny, Petr, Martin Vojtek, Jan Moravek, Michal Vrana und Jan Klusacek. „Validation of PV Inverters Frequency Response Using Laboratory Test Platform“. In 2020 21st International Scientific Conference on Electric Power Engineering (EPE). IEEE, 2020. http://dx.doi.org/10.1109/epe51172.2020.9269247.

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Aldrete-Vidrio, E., M. A. Salhi, J. Altet, S. Grauby, D. Mateo, H. Michel, L. Clerjaud et al. „Using Temperature as Observable of the Frequency Response of RF CMOS Amplifiers“. In 2008 13th IEEE European Test Symposium (ETS). IEEE, 2008. http://dx.doi.org/10.1109/ets.2008.15.

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Berichte der Organisationen zum Thema "Frequency response test"

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McKenna, Patrick, und Mark Evans. Emergency Relief and complex service delivery: Towards better outcomes. Queensland University of Technology, Juni 2021. http://dx.doi.org/10.5204/rep.eprints.211133.

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Emergency Relief (ER) is a Department of Social Services (DSS) funded program, delivered by 197 community organisations (ER Providers) across Australia, to assist people facing a financial crisis with financial/material aid and referrals to other support programs. ER has been playing this important role in Australian communities since 1979. Without ER, more people living in Australia who experience a financial crisis might face further harm such as crippling debt or homelessness. The Emergency Relief National Coordination Group (NCG) was established in April 2020 at the start of the COVID-19 pandemic to advise the Minister for Families and Social Services on the implementation of ER. To inform its advice to the Minister, the NCG partnered with the Institute for Governance at the University of Canberra to conduct research to understand the issues and challenges faced by ER Providers and Service Users in local contexts across Australia. The research involved a desktop review of the existing literature on ER service provision, a large survey which all Commonwealth ER Providers were invited to participate in (and 122 responses were received), interviews with a purposive sample of 18 ER Providers, and the development of a program logic and theory of change for the Commonwealth ER program to assess progress. The surveys and interviews focussed on ER Provider perceptions of the strengths, weaknesses, future challenges, and areas of improvement for current ER provision. The trend of increasing case complexity, the effectiveness of ER service delivery models in achieving outcomes for Service Users, and the significance of volunteering in the sector were investigated. Separately, an evaluation of the performance of the NCG was conducted and a summary of the evaluation is provided as an appendix to this report. Several themes emerged from the review of the existing literature such as service delivery shortcomings in dealing with case complexity, the effectiveness of case management, and repeat requests for service. Interviews with ER workers and Service Users found that an uplift in workforce capability was required to deal with increasing case complexity, leading to recommendations for more training and service standards. Several service evaluations found that ER delivered with case management led to high Service User satisfaction, played an integral role in transforming the lives of people with complex needs, and lowered repeat requests for service. A large longitudinal quantitative study revealed that more time spent with participants substantially decreased the number of repeat requests for service; and, given that repeat requests for service can be an indicator of entrenched poverty, not accessing further services is likely to suggest improvement. The interviews identified the main strengths of ER to be the rapid response and flexible use of funds to stabilise crisis situations and connect people to other supports through strong local networks. Service Users trusted the system because of these strengths, and ER was often an access point to holistic support. There were three main weaknesses identified. First, funding contracts were too short and did not cover the full costs of the program—in particular, case management for complex cases. Second, many Service Users were dependent on ER which was inconsistent with the definition and intent of the program. Third, there was inconsistency in the level of service received by Service Users in different geographic locations. These weaknesses can be improved upon with a joined-up approach featuring co-design and collaborative governance, leading to the successful commissioning of social services. The survey confirmed that volunteers were significant for ER, making up 92% of all workers and 51% of all hours worked in respondent ER programs. Of the 122 respondents, volunteers amounted to 554 full-time equivalents, a contribution valued at $39.4 million. In total there were 8,316 volunteers working in the 122 respondent ER programs. The sector can support and upskill these volunteers (and employees in addition) by developing scalable training solutions such as online training modules, updating ER service standards, and engaging in collaborative learning arrangements where large and small ER Providers share resources. More engagement with peak bodies such as Volunteering Australia might also assist the sector to improve the focus on volunteer engagement. Integrated services achieve better outcomes for complex ER cases—97% of survey respondents either agreed or strongly agreed this was the case. The research identified the dimensions of service integration most relevant to ER Providers to be case management, referrals, the breadth of services offered internally, co-location with interrelated service providers, an established network of support, workforce capability, and Service User engagement. Providers can individually focus on increasing the level of service integration for their ER program to improve their ability to deal with complex cases, which are clearly on the rise. At the system level, a more joined-up approach can also improve service integration across Australia. The key dimensions of this finding are discussed next in more detail. Case management is key for achieving Service User outcomes for complex cases—89% of survey respondents either agreed or strongly agreed this was the case. Interviewees most frequently said they would provide more case management if they could change their service model. Case management allows for more time spent with the Service User, follow up with referral partners, and a higher level of expertise in service delivery to support complex cases. Of course, it is a costly model and not currently funded for all Service Users through ER. Where case management is not available as part of ER, it might be available through a related service that is part of a network of support. Where possible, ER Providers should facilitate access to case management for Service Users who would benefit. At a system level, ER models with a greater component of case management could be implemented as test cases. Referral systems are also key for achieving Service User outcomes, which is reflected in the ER Program Logic presented on page 31. The survey and interview data show that referrals within an integrated service (internal) or in a service hub (co-located) are most effective. Where this is not possible, warm referrals within a trusted network of support are more effective than cold referrals leading to higher take-up and beneficial Service User outcomes. However, cold referrals are most common, pointing to a weakness in ER referral systems. This is because ER Providers do not operate or co-locate with interrelated services in many cases, nor do they have the case management capacity to provide warm referrals in many other cases. For mental illness support, which interviewees identified as one of the most difficult issues to deal with, ER Providers offer an integrated service only 23% of the time, warm referrals 34% of the time, and cold referrals 43% of the time. A focus on referral systems at the individual ER Provider level, and system level through a joined-up approach, might lead to better outcomes for Service Users. The program logic and theory of change for ER have been documented with input from the research findings and included in Section 4.3 on page 31. These show that ER helps people facing a financial crisis to meet their immediate needs, avoid further harm, and access a path to recovery. The research demonstrates that ER is fundamental to supporting vulnerable people in Australia and should therefore continue to be funded by government.

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