Academic literature on the topic 'Feedback för drift'

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Journal articles on the topic "Feedback för drift"

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Li, Shan, Shaoqing Zhang, Zhengyu Liu, et al. "The Role of Large-Scale Feedbacks in Cumulus Convection Parameter Estimation." Journal of Climate 29, no. 11 (2016): 4099–119. http://dx.doi.org/10.1175/jcli-d-15-0117.1.

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Abstract Uncertainty in cumulus convection parameterization is one of the most important causes of model climate drift through interactions between large-scale background and local convection that use empirically set parameters. Without addressing the large-scale feedback, the calibrated parameter values within a convection scheme are usually not optimal for a climate model. This study first designs a multiple-column atmospheric model that includes large-scale feedbacks for cumulus convection and then explores the role of large-scale feedbacks in cumulus convection parameter estimation using a
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Parsa, Behnoosh, Daniel J. O'Shea, Vladimir M. Zatsiorsky, and Mark L. Latash. "On the nature of unintentional action: a study of force/moment drifts during multifinger tasks." Journal of Neurophysiology 116, no. 2 (2016): 698–708. http://dx.doi.org/10.1152/jn.00180.2016.

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We explored the origins of unintentional changes in performance during accurate force production in isometric conditions seen after turning visual feedback off. The idea of control with referent spatial coordinates suggests that these phenomena could result from drifts of the referent coordinate for the effector. Subjects performed accurate force/moment production tasks by pressing with the fingers of a hand on force sensors. Turning the visual feedback off resulted in slow drifts of both total force and total moment to lower magnitudes of these variables; these drifts were more pronounced in
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Günther, Benedikt, Martin Dierolf, Klaus Achterhold, and Franz Pfeiffer. "Device for source position stabilization and beam parameter monitoring at inverse Compton X-ray sources." Journal of Synchrotron Radiation 26, no. 5 (2019): 1546–53. http://dx.doi.org/10.1107/s1600577519006453.

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Compact X-ray sources based on inverse Compton scattering provide brilliant and partially coherent X-rays in a laboratory environment. The cross section for inverse Compton scattering is very small, requiring high-power laser systems as well as small laser and electron beam sizes at the interaction point to generate sufficient flux. Therefore, these systems are very sensitive to distortions which change the overlap between the two beams. In order to monitor X-ray source position, size and flux in parallel to experiments, the beam-position monitor proposed here comprises a small knife edge whos
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Budd, W. F., Ian Simmonds, and Xingren Wu. "The physical basis for a dynamic Antarctic sea-ice model for use with an atmospheric GCM." Annals of Glaciology 15 (1991): 196–203. http://dx.doi.org/10.3189/1991aog15-1-196-203.

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An observed ocean-drift data set is used as the basis of a wind-driven coupled ocean-sea-ice-atmosphere model including interaction and feedback. The observed characteristics of the Antarctic sea ice are described including the ice thickness, ice concentration and horizontal advection. The atmospheric model computes heat fiuxes, sea-ice growth, changes in concentration and advection. Sensitivity studies show reasonable and stable simulations of the observed sea-ice characteristics for the present mean Antarctic winter climate. The response times and feedbacks of the ice-atmosphere system as re
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Budd, W. F., Ian Simmonds, and Xingren Wu. "The physical basis for a dynamic Antarctic sea-ice model for use with an atmospheric GCM." Annals of Glaciology 15 (1991): 196–203. http://dx.doi.org/10.1017/s0260305500009733.

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An observed ocean-drift data set is used as the basis of a wind-driven coupled ocean-sea-ice-atmosphere model including interaction and feedback. The observed characteristics of the Antarctic sea ice are described including the ice thickness, ice concentration and horizontal advection. The atmospheric model computes heat fiuxes, sea-ice growth, changes in concentration and advection. Sensitivity studies show reasonable and stable simulations of the observed sea-ice characteristics for the present mean Antarctic winter climate. The response times and feedbacks of the ice-atmosphere system as re
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He, Cheng, Jian Wu, Jin Ying, Jiyang Dai, Zhe Zhang, and Liangxing Jiang. "Adaptive Dynamic Surface Control for a Class of Nonlinear Pure-Feedback Systems with Parameter Drift." Mathematical Problems in Engineering 2020 (January 3, 2020): 1–11. http://dx.doi.org/10.1155/2020/3628658.

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In order to solve the problem of unknown parameter drift in the nonlinear pure-feedback system, a novel nonlinear pure-feedback system is proposed in which an unconventional coordinate transformation is introduced and a novel unconventional dynamic surface algorithm is designed to eliminate the problem of “calculation expansion” caused by the use of backstepping in the pure-feedback system. Meanwhile, a sufficiently smooth projection algorithm is introduced to suppress the parameter drift in the nonlinear pure-feedback system. Simulation experiments demonstrate that the designed controller ens
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Brown, Liana E., David A. Rosenbaum, and Robert L. Sainburg. "Limb Position Drift: Implications for Control of Posture and Movement." Journal of Neurophysiology 90, no. 5 (2003): 3105–18. http://dx.doi.org/10.1152/jn.00013.2003.

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In the absence of visual feedback, subject reports of hand location tend to drift over time. Such drift has been attributed to a gradual reduction in the usefulness of proprioception to signal limb position. If this account is correct, drift should degrade the accuracy of movement distance and direction over a series of movements made without visual feedback. To test this hypothesis, we asked participants to perform six series of 75 repetitive movements from a visible start location to a visible target, in time with a regular, audible tone. Fingertip position feedback was given by a cursor dur
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González-Otero, Digna M., Jesus Ruiz, Sofía Ruiz de Gauna, Unai Irusta, Unai Ayala, and Erik Alonso. "A New Method for Feedback on the Quality of Chest Compressions during Cardiopulmonary Resuscitation." BioMed Research International 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/865967.

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Quality of cardiopulmonary resuscitation (CPR) improves through the use of CPR feedback devices. Most feedback devices integrate the acceleration twice to estimate compression depth. However, they use additional sensors or processing techniques to compensate for large displacement drifts caused by integration. This study introduces an accelerometer-based method that avoids integration by using spectral techniques on short duration acceleration intervals. We used a manikin placed on a hard surface, a sternal triaxial accelerometer, and a photoelectric distance sensor (gold standard). Twenty vol
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Yang, Xing, and Xiang Shun Li. "Analysis and Design on Course Control for Sail-Assisted Ship." Advanced Materials Research 1008-1009 (August 2014): 556–61. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.556.

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Aiming at the problem that sail-assisted ship is easy to yaw because of sail’s lateral force and adjusts its course slowly due to wind, wave and other interferences on the sea, this paper put forward a feedforward feedback control method based on fuzzy system. According to the relationship between lateral force and yaw angle, a feedforward controller was designed to offset the yaw of ship. In order to correct the drift angle of ship automatically, the feedback controller was fulfilled to track the given course. Feedback control loop adopted fuzzy self-adjusting PD controller to make the drift
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Qin, Zhang Jian, Liang Quan Ge, Qi Fan Wu, and Jian Ping Cheng. "A New Algorithm for Spectral Drift Calculation in a Gamma-Ray Spectrometer." Advanced Materials Research 346 (September 2011): 705–10. http://dx.doi.org/10.4028/www.scientific.net/amr.346.705.

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Spectral drift of any origin consisting of detectors and nuclear electronics affects the long-term stability in a gamma-ray spectrometer, which is essential to maintaining the high quality of gamma energy spectra. The feedback regulation according to the quantity of spectral drift can restore the system’s stability. A new algorithm for spectral drift calculation is given in this paper. A digital logic unit is developed in a FPGA chip based on the algorithm, and a MCU coordinating with it can fast calculate the spectral drift within only less than 110 instruction periods.
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Dissertations / Theses on the topic "Feedback för drift"

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Palm, Christopher. "Intuitiva Gränssnitt : Horisontell och vertikal feedback för drift i helikopter - Utvärdering av visuell och taktila displayer." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-108114.

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Brownout-fenomenet ligger till grund för ungefär 75 procent av alla flygolyckor inom NATO. Olyckorna sker under start och landningssekvenser i torra klimat då sand virvlar upp och försämrar pilotens sikt utifrån helikoptern. Under brownout förlorar piloten visuella referenser utanför helikoptern vilket gör att denne omedvetet kan tappa kontrollen över helikoptern och således kan hamna i plötsligt drift. Därför har NATO i samarbete med bland annat Totalförsvarets Forskningsinstitut (FOI) försökt finna en lösning på problemen som uppstår vid brownout. Syftet med föreliggande studie är främst att
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Habte, Samson. "Snap-drift neural computing for intelligent diagnostic feedback." Thesis, London Metropolitan University, 2017. http://repository.londonmet.ac.uk/1247/.

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Information and communication technologies have been playing a crucial role in improving the efficiency and effectiveness of learning and teaching in higher education. Two decades ago, research studies were focused on how to use artificial intelligence techniques to imitate teachers or tutors in delivering learning sessions. Machine learning techniques have been applied in several research studies to construct a student model in the context of intelligent tutoring systems. However, the usage of intelligent tutoring systems has been very limited in higher education as most educational instituti
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Moore, Charles H. "Grasping Embodiment: Haptic Feedback for Artificial Limbs." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1617107153868166.

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Books on the topic "Feedback för drift"

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Kapitanovsky, Alex. Design of smooth dynamic feedback for drift compensation in nonholonomic systems. 1994.

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Amenta, Edwin, and Amber Celina Tierney. Political Institutions and U.S. Social Policy. Edited by Daniel Béland, Kimberly J. Morgan, and Christopher Howard. Oxford University Press, 2013. http://dx.doi.org/10.1093/oxfordhb/9780199838509.013.004.

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United States political institutions provide a compelling account of American exceptionalism in social policy: why the United States has a social insurance system that was late to develop and remains incomplete; spends relatively little on direct social policy; and relies on indirect and private social policy that is relatively ineffective in addressing poverty, insecurity, and inequality. Formal political institutions—including the tardiness of universal suffrage, many institutional veto points, federalism, the underdevelopment of domestic administrative authority, and a political party syste
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Benestad, Rasmus. Climate in the Barents Region. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.655.

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The Barents Sea is a region of the Arctic Ocean named after one of its first known explorers (1594–1597), Willem Barentsz from the Netherlands, although there are accounts of earlier explorations: the Norwegian seafarer Ottar rounded the northern tip of Europe and explored the Barents and White Seas between 870 and 890 ce, a journey followed by a number of Norsemen; Pomors hunted seals and walruses in the region; and Novgorodian merchants engaged in the fur trade. These seafarers were probably the first to accumulate knowledge about the nature of sea ice in the Barents region; however, scienti
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Book chapters on the topic "Feedback för drift"

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Bui, Gavin, and Rhett Yu. "Spaced Multi-draft Composing and Feedback in Mainland Chinese English as a Foreign Language Secondary School Writing Literacy." In English Literacy Instruction for Chinese Speakers. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6653-6_8.

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White, Eddy. "Teacher Self-Assessment of Feedback Practices in an EFL Academic Writing Class - A Reflective Case Study." In Innovative Practices for Higher Education Assessment and Measurement. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0531-0.ch009.

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Unlike studies of teacher feedback on student writing, research into teacher self-assessment of their own feedback practices is quite rare in the assessment literature. In this reflective case study, the researcher/teacher systematically analyzed feedback practices to clearly determine the form and kind of formative feedback being provided on student essays, and also to compare these feedback practices to recommended practice from the feedback literature. The research took place in an academic English writing course for third-year students at a Japanese university. A close examination of the teacher feedback on the first draft of 21 student essays was undertaken, and more than 800 feedback interventions were identified and coded. Results of this investigation show a number of patterns of practice in giving feedback, including; extensive use of questions in teacher commentary, very limited use of praise comments, and varying amounts of feedback provided on individual essays. Results also show that the feedback practices discovered through this investigation align well with recommended best practice. The case study positions the teacher as ‘learner' in this feedback process, and calls for similar published research describing in detail what teachers do when providing feedback to students on their work.
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White, Eddy. "Teacher Self-Assessment of Feedback Practices in an EFL Academic Writing Class - A Reflective Case Study." In Learning and Performance Assessment. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0420-8.ch057.

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Unlike studies of teacher feedback on student writing, research into teacher self-assessment of their own feedback practices is quite rare in the assessment literature. In this reflective case study, the researcher/teacher systematically analyzed feedback practices to clearly determine the form and kind of formative feedback being provided on student essays, and also to compare these feedback practices to recommended practice from the feedback literature. The research took place in an academic English writing course for third-year students at a Japanese university. A close examination of the teacher feedback on the first draft of 21 student essays was undertaken, and more than 800 feedback interventions were identified and coded. Results of this investigation show a number of patterns of practice in giving feedback, including; extensive use of questions in teacher commentary, very limited use of praise comments, and varying amounts of feedback provided on individual essays. Results also show that the feedback practices discovered through this investigation align well with recommended best practice. The case study positions the teacher as ‘learner' in this feedback process, and calls for similar published research describing in detail what teachers do when providing feedback to students on their work.
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Chesson, Peter. "Species coexistence." In Theoretical Ecology. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198824282.003.0002.

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In most places on Earth, many similar species are found coexisting. This key observation is often explained in terms of ecological differences in how species interact with their shared environment, that is, in terms of their niche differences. Niche differences can to lead to stable coexistence in contrast to the ecological drift predicted by the neutral theory of community ecology. Coexistence becomes stabilized as density feedback within species is strengthened relative to density feedback between species. Coexistence is reflective of two distinct niche comparisons, niche overlap, and species relative average fitness. In general, low niche overlap (dissimilarity in use of the environment) and similar average fitnesses (similar average performance) favor coexistence. For a unified theory of species coexistence, it is shown how the Lotka–Volterra competition model can reflect and quantify several types of niche comparison, including comparisons of resource use, susceptibility to natural enemies, and temporal variation in activity.
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Dekker, Sidney W. A. "Drifting into Failure." In Chaos and Complexity Theory for Management. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2509-9.ch011.

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The Gaussian copula, an equation first published by David Li in 2000, was a beautiful thing—in isolation. Its intention was to price collaterized debt obligations, and work out whether they were moving in the same direction. The copula was an enabler of mortgaging the most hopeless of homeowner prospects. Millions of securities could be traded on the back of a single number (a security is something that shows ownership, or right of ownership of stocks or bonds, or the right to ownership connected with derivatives that get their value from some underlying asset). As more and more webs of interactions and relationships and interdependencies and feedback loops started growing around it, however, it became part of a complex system. The copula became the trigger of a recession that swelled the number of homeless families in the US by 30% inside of two years (Associated Press, 2010). It ended up bringing global lending to a virtual standstill, triggering a worldwide financial crisis and a deep recession. How did a once good idea like this drift into failure, and how can such a risk of collapse be managed? That is what this chapter is about.
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Coron, J. M., and J. B. Pomet. "A REMARK ON THE DESIGN OF TIME-VARYING STABILIZING FEEDBACK LAWS FOR CONTROLLABLE SYSTEMS WITHOUT DRIFT." In Nonlinear Control Systems Design 1992. Elsevier, 1993. http://dx.doi.org/10.1016/b978-0-08-041901-5.50070-1.

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Cucina, Jeffrey M., and Ilene F. Gast. "Focus Groups." In Employee Surveys and Sensing. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190939717.003.0007.

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When used in conjunction with employee surveys, focus groups can provide valuable qualitative data to support the employee survey process. Focus groups held prior to survey development and administration can uncover issues worthy of investigation and evaluate draft survey questions for sensitivity and readability. Post-survey focus groups can elucidate issues identified by the survey, solicit organizational members’ suggestions for resolving these issues, and gain management and employee feedback on possible programs to address identified issues. After describing how focus groups fit into the context of industrial–organizational psychology methodology, the authors outline steps for designing and conducting focus group studies and for analyzing the resulting data and reporting findings. The chapter concludes with an annotated list of additional resources for conducting focus groups.
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Kaufmann, Thomas. "The affordances of wikis for virtual exchange." In Virtual exchange in the Asia-Pacific: research and practice. Research-publishing.net, 2020. http://dx.doi.org/10.14705/rpnet.2020.47.1150.

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This chapter will describe the ways wikis can benefit students, teachers, and administrators as well as provide examples of ways they can be used in the language and culture classroom for Virtual Exchange (VE). It will specifically examine how the tool was used for a collaborative research paper and explore how students can think critically to decide how to draft, edit, and revise the paper into a unified voice. Throughout the process, writers are thinking metacognitively about their writing and that of their counterparts. Furthermore, using written or verbal comments and visual markup within the wiki itself, recursive feedback loops between teachers and students are created in real-time but also recorded for later reflection. Finally, the tool also allows for a multitude of data points to be collected and analyzed for fair and valid assessment that is data driven. Teachers and administrators can see exactly who wrote what, when, and how long it took them. Therefore, the quantity and quality of the contributions can be assessed. Wikis are a powerful tool that can be harnessed in the language classroom for intercultural VE in a myriad of ways with an assortment of benefits.
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Irving, Karen E. "Technology-Assisted Formative Assessment." In Learning and Performance Assessment. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0420-8.ch021.

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Reliable just-in-time assessments are the foundation of informed teaching and learning. Modern electronic technologies assist in the formative assessment process by supporting classroom environments that allow students and teachers to assess learning and providing mechanisms to present information about student learning during instructional sequences. To implement formative assessment practices, students and teachers benefit from rich educational tasks that invite students to share information about their understanding of the lesson while the lesson is occurring in order to nurture productive learning by both teacher and student. Formative feedback is facilitated by technologies such as connected classrooms, videography, online formative quizzes, and manuscript multi-draft editing. Technology-assisted formative assessment represents a powerful option to promote improved classroom communications that support formative assessment practices for teachers in twenty-first century classrooms.
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van der Linde, Kathleen. "South Africa." In Financing Company Group Restructurings. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780198738466.003.0020.

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The author would like to thank Adam Harris, partner at Bowman Gilfillan, Juanitta Calitz, associate professor at the University of Johannesburg, and Riza Moosa, director at Norton Rose Fulbright South Africa, for valuable feedback on a draft of this chapter. The author also benefitted from discussions with Stephen Gamble, chairman of the Loan Markets Association’s Africa Group, and Alex Otto, head of Structured Products and Principle Investments at Standard Bank Group. The material contained herein is intended as a general guide only and is not intended to be a memorandum of law study, nor to provide legal advice, and should not be treated as a substitute for legal advice concerning particular situations. Legal advice should always be sought before taking any action based on the information provided. The publishers, editors, and author bear no responsibility for any errors or omissions contained therein.
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Conference papers on the topic "Feedback för drift"

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Brown, Dominic-Palmer, Chrisina Draganova, and Sin Wee Lee. "Snap-drift neural network for selecting student feedback." In 2009 International Joint Conference on Neural Networks (IJCNN 2009 - Atlanta). IEEE, 2009. http://dx.doi.org/10.1109/ijcnn.2009.5178859.

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Rivera, Monica, Carleen Morris, David Carlson, Eric J. Toone, Daniel G. Cole, and Robert L. Clark. "Minimizing Tip-Sample Contact Force in Automated Atomic Force Microscope Based Force Spectroscopy." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87378.

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In atomic force microscope based force spectroscopy, it is often necessary to minimize the tip-sample contact force. While it is possible to control the contact force using force feedback, this method is susceptible to sensor drift and is often under-utilized due to the noise associated with the feedback process. Here we present a method to control the tip-sample contact force for repeated pulling cycles without relying on force feedback or tedious user-controlled z-stage step increments. The custom pulling program uses the data recorded during the previous retraction cycle to automatically re
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Ahn, Kyung-ho, Anna G. Stefanopoulou, and Mrdjan Jankovic. "Tolerant Ethanol Estimation in Flex-Fuel Vehicles During MAF Sensor Drifts." In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2708.

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Flexible fuel vehicles (FFVs) can operate on a blend of ethanol and gasoline in any volumetric concentration of up to 85% ethanol (93% in Brazil). Existing FFVs rely on ethanol sensor installed in the vehicle fueling system, or on the ethanol-dependent air-to-fuel ratio (AFR) estimated via an exhaust gas oxygen (EGO) or λ sensor. The EGO-based ethanol detection is desirable from cost and maintenance perspectives but has been shown to be prone to large errors during mass air flow sensor drifts [1, 2]. Ethanol content estimation can be realized by a feedback-based fuel correction of the feedforw
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da Silva, Moises T., and Pericles R. Barros. "A relay feedback structure for processes under static disturbances or drift." In 2017 IEEE Conference on Control Technology and Applications (CCTA). IEEE, 2017. http://dx.doi.org/10.1109/ccta.2017.8062617.

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Biktasheva, I. V., S. W. Morgan, G. Plank, and V. N. Biktashev. "Feedback control of resonant drift as a tool for low voltage defibrillation." In 2008 35th Annual Computers in Cardiology Conference. IEEE, 2008. http://dx.doi.org/10.1109/cic.2008.4749088.

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Georgiou, Evangelos, Peter L. Morgan, Jonathan San Diego, Jian Dai, and Michael Luck. "Self Localization Using a 9DOF IMU Sensor With a Directional Cosine Matrix." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12906.

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In the field of robotics, the most essential requirement for successful navigation is an accurate and numerically inexpensive method for self-localization. This paper presents a method that exploits the principles of directional cosines to setup a rotation matrix to deal with a closed loop PI feedback based model. The system uses a 9 degree of freedom (9DOF) sensor and exploits the benefits of the accuracy of a 3-axis gyroscope by leveraging the measurement of a 3-axis accelerometer and 3-axis magnetometer, which compensates and corrects the accumulative drift generated by integrating the gyro
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Prêle, D., F. Voisin, C. Beillimaz, S. Chen, and A. Goldwurm. "Gain drift compensation with no-feedback-loop developed for the X-IFU/ATHENA readout chain." In SPIE Astronomical Telescopes + Instrumentation, edited by Jan-Willem A. den Herder, Tadayuki Takahashi, and Marshall Bautz. SPIE, 2016. http://dx.doi.org/10.1117/12.2232357.

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Kiriakidis, Kiriakos, Matthew Feemster, and Richard T. O’Brien. "Nonlinear State Estimation Using Aggregate Modeling." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41678.

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The paper addresses the state estimation problem for a general class of nonlinear systems. Using an expansion of nonlinear drift dynamics in terms of an aggregate model, the authors analyze the stability of the estimation error equation. Although the treatment is limited to linear feedback, the method results in quadratically stable error dynamics inside a large subset of the state space. The authors tested and verified the proposed approach on the nonlinear dynamics of the rotary pendulum.
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Dokhane, A., D. Hennig, R. Chawla, and Rizwan-Uddin. "Stability and Bifurcation Analyses of Two-Phase Flow Using a Drift Flux Model and Bifurcation Code BIFDD." In 10th International Conference on Nuclear Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/icone10-22683.

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Nonlinear boiling water reactor (BWR) studies are generally pursued by employing large system codes, like RAMONA and RETRAN. However, detailed investigations using this approach in which parametric studies are to be carried out over large regions of parameter space are very expensive and time consuming. Therefore, it is necessary to use the so-called reduced order models containing a “manageable” number of system equations incorporating the essential features of the physical phenomena. Since the thermal-hydraulic model determines the main feedback gain and the associated time delay (void feedb
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Liu, Yong, Lifan Zhao, Guimei Liu, et al. "Dynamic Bayesian Logistic Matrix Factorization for Recommendation with Implicit Feedback." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/481.

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Matrix factorization has been widely adopted for recommendation by learning latent embeddings of users and items from observed user-item interaction data. However, previous methods usually assume the learned embeddings are static or homogeneously evolving with the same diffusion rate. This is not valid in most scenarios, where users’ preferences and item attributes heterogeneously drift over time. To remedy this issue, we have proposed a novel dynamic matrix factorization model, named Dynamic Bayesian Logistic Matrix Factorization (DBLMF), which aims to learn heterogeneous user and item embedd
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