Thematische Bibliographien / Procedural parameters

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Auswahl der wissenschaftlichen Literatur zum Thema „Procedural parameters“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 10. Februar 2022

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Zeitschriftenartikel zum Thema "Procedural parameters"

Azari, A., L. Ota, J. Wan, O. El Saccr und D. Martin. „Can Endometrial Thickness Measurement Predict Procedural Parameters during Office Essure Procedure?“ Journal of Minimally Invasive Gynecology 19, Nr. 6 (November 2012): S64. http://dx.doi.org/10.1016/j.jmig.2012.08.197.

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Ammar, Sonia, Elena Ladich, Kristin Steigerwald, Isabel Deisenhofer und Michael Joner. „Pathophysiology of renal denervation procedures: from renal nerve anatomy to procedural parameters“. EuroIntervention 9, R (Mai 2013): R89—R95. http://dx.doi.org/10.4244/eijv9sra15.

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Yoon, Sung-Young, Gon-ho Kim, Yushin Kim, Nack Kim, Sangheon Lee, Christina Kawai und Youngki Hong. „Optimal Parameters for Intervertebral Disk Resection Using Aqua-Plasma Beams“. Journal of Neurological Surgery Part A: Central European Neurosurgery 80, Nr. 01 (14.06.2018): 034–38. http://dx.doi.org/10.1055/s-0038-1655762.

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Objective A minimally invasive procedure for intervertebral disk resection using plasma beams has been developed. Conventional parameters for the plasma procedure such as voltage and tip speed mainly rely on the surgeon's personal experience, without adequate evidence from experiments. Our objective was to determine the optimal parameters for plasma disk resection. Methods Rate of ablation was measured at different procedural tip speeds and voltages using porcine nucleus pulposi. The amount of heat formation during experimental conditions was also measured to evaluate the thermal safety of the plasma procedure. Results The ablation rate increased at slower procedural speeds and higher voltages. However, for thermal safety, the optimal parameters for plasma procedures with minimal tissue damage were an electrical output of 280 volts root-mean-square (Vrms) and a procedural tip speed of 2.5 mm/s. Conclusion Our findings provide useful information for an effective and safe plasma procedure for disk resection in a clinical setting.

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Qin, Xuejie, und Yee-Hong Yang. „Estimating Parameters for Procedural Texturing by Genetic Algorithms“. Graphical Models 64, Nr. 1 (Januar 2002): 19–39. http://dx.doi.org/10.1006/gmod.2002.0565.

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Hwang, Wen-Ping, und Ching-Lin Wang. „Using procedural parameters and continuations in combinatorial searches“. Software: Practice and Experience 24, Nr. 4 (April 1994): 377–86. http://dx.doi.org/10.1002/spe.4380240404.

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van Hest, Annemieke, und Thomas Steckler. „Effects of procedural parameters on response accuracy: lessons from delayed (non-)matching procedures in animals“. Cognitive Brain Research 3, Nr. 3-4 (Juni 1996): 193–203. http://dx.doi.org/10.1016/0926-6410(96)00006-7.

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Doyle, Patricia M., Mark Wolery, Melinda Jones Ault und David L. Gast. „System of Least Prompts: A Literature Review of Procedural Parameters“. Journal of the Association for Persons with Severe Handicaps 13, Nr. 1 (März 1988): 28–40. http://dx.doi.org/10.1177/154079698801300104.

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This manuscript describes an instructional strategy, system of least prompts, and reviews the use of the procedure in the applied research literature. The literature is analyzed in terms of the populations for which the procedure has been used, the type of skills that have been taught with the procedure, and the results when the procedure was employed. The literature also is described in terms of previously identified parameters of the system of least prompts including (a) the number and type of prompts included in the least-to-most assistance prompt hierarchies, (b) the presentation of the target stimulus at each prompt level, (c) use of a fixed response interval, and (d) the delivery of reinforcement following correct prompted and unprompted responses. Summary statements and recommendations about future use and research are included.

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Mosher-Ashley, Pearl M. „Procedural and Methodological Parameters in Behavioral-Gerontological Research: A Review“. International Journal of Aging and Human Development 24, Nr. 3 (April 1987): 189–229. http://dx.doi.org/10.2190/2b3t-7rfn-aym7-c4gg.

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This article analyzes the behavioral-gerontological research published before 1984. The 151 studies located were classified into three main categories: observation, assessment, and intervention. Each study and each category were examined for variations in the behavioral procedures employed, and in the scientific research methods used to collect and analyze data. The survey indicated several serious problems in the research. Much of the behavioral-gerontological research focuses on institutionalized elderly, and tends to perpetuate a passive, helpless role on the part of the elderly in the treatment process. Less than 20 percent of the studies focused on observation or assessment, and most of these were found to be flawed. The intervention studies were also problematic; the majority of them were of short duration and had only one treatment phase which did not vary substantially during the study period. Most also failed to provide for interobserver agreement, generalization, maintenance, and follow-up assessments. Finally, the implications of these findings for future psychological research with the elderly are discussed.

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Kim, Benny S., Barbara Hum, Jung Cheol Park und In Sup Choi. „Retrospective Review of Procedural Parameters and Outcomes of Percutaneous Vertebroplasty in 673 Patients“. Interventional Neuroradiology 20, Nr. 5 (01.01.2014): 564–75. http://dx.doi.org/10.15274/inr-2014-10080.

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Percutaneous vertebroplasty (PVP) is a minimally invasive procedure to treat back pain secondary to osteoporotic vertebral compression fractures (VCF). This study aims to review our techniques and outcomes in patients with VCF. Outcomes of all patients who underwent PVP at our institution from 1998 to 2014 were retrospectively collected from medical records and follow-up telephone interviews. 1174 PVP procedures for VCF in 673 patients were identified to have complete follow-up data. Patients with inadequate data were excluded from the analysis. Procedural aspects such as unipedicular or bipedicular access, vertebral region treated, amount of cement injected into vertebrae, number of levels treated at a single session, refracture rates and location, presence of a necrotic cavity, and pain outcomes were examined. Excellent rates of improvement of back pain for both single level and multilevel PVP were achieved in 92% of patients. Unipedicular or bipedicular approach, cement volume, vertebral region treated, cement extravasation, and presence of a necrotic cavity did not affect pain outcomes or refracture rates. Fractures that did develop after PVP were often adjacent and occurred earlier than distant level fractures. Lumbar vertebrae required more cement than thoracic vertebrae. PVP provides excellent rates of pain relief in both single and multilevel procedures. The procedural aspects evaluated did not affect pain outcome or refracture rates. Adjacent refractures tended to occur sooner than distant ones.

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Keçe, Fehmi, Marta de Riva, Reza Alizadeh Dehnavi, Adrianus P. Wijnmaalen, Bart J. Mertens, Martin J. Schalij, Katja Zeppenfeld und Serge A. Trines. „Predicting early reconnection after cryoballoon ablation with procedural and biophysical parameters“. Heart Rhythm O2 2, Nr. 3 (Juni 2021): 290–97. http://dx.doi.org/10.1016/j.hroo.2021.03.007.

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Dissertationen zum Thema "Procedural parameters"

Hrádek, Jan. „Procesní parametry při navařování Inconelu 625“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443210.

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The research is focused on cladding of inconel 625 using the MAG - CMT method. It was found that welding without an oscillation does not create the necessary geometry to establish additional layers. When welding with an oscillation, it was researched that the current between 150 and 200 A appears most appropriate in the synergistic mode for welding inconel 625. The resulting weld bead was made at a current of 190 A with pulse dynamics correction set to -4 and correction of arc length to +10 and welding speed of 315 mm per minute.The weld bead was not ideal mainly due to insufficient height. The improvement of results could be achieved by set oscilation with fluent change in acceleration. Because of the time options and difficulty of programming it was used only constant speed for all experiments.

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Palaszewski, Bo. „On multiple test procedures for finding deviating parameters /“. Göteborg : Stockholm, Sweden : University of Göteborg ; Almqvist & Wiksell International [distributor], 1993. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=005857463&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Brodd, Adam, und Andreas Eriksson. „User perception on procedurally generated cities affected with a heightmapped terrain parameter“. Thesis, Blekinge Tekniska Högskola, Institutionen för datavetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-18491.

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Context: Procedural content generation shortened PCG is a way of letting the computer algorithmically generate data, with little input from programmers. Procedural content generation is a useful tool for developers to create game worlds, content and much more, which can be tedious and time-consuming to do by hand.Objectives: The procedural generation of both a city and height-mapped terrain parameter using Perlin noise and the terrain parameters effect on the city is explored in this thesis. The objective is to find out if a procedurally generated city with a heightmap parameter using Perlin noise is viable for use in games. Methods: An implementation generating both a height-mapped terrain parameter and city using Perlin noise has been created, along with that a user survey to test the generated city and terrain parameters viability in games. Results: This work successfully implemented an application that can generate cities affected with a heightmapped terrain parameter that is viable for use in games. Conclusions: This work concludes that it is possible to generate cities affected with a height-mapped terrain parameter by utilizing the noise algorithm Perlin noise. The generated cities and terrains are both viable and believable for use in games.

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BAT, ASSIA. „Incidence des procedures de prelevement et des procedures d'essais sur les parametres geotechniques mesures“. Caen, 1999. http://www.theses.fr/1999CAEN2027.

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Les resultats des essais triaxiaux et dometriques effectues sur une argile marine francaise (site de cran) sont analyses pour determiner l'influence de l'outil de prelevement et de sa mise en uvre sur les resultats des essais de laboratoire. Cette etude se limite a deux objectifs : l'analyse du remaniement des echantillons preleves et l'examen de l'incidence des procedures utilisees dans la realisation de l'essai dometrique (temperature de l'essai, frottement sur la bague dometrique, taux et duree de chargement). L'analyse montre qu'il y a une influence du mode de prelevement sur les caracteristiques de compressibilite et de resistance. Les modules de deformation augmentent avec le diametre du carottier et avec l'amelioration du mode de prelevement. Des variations, relativement mineures, des procedures de l'essai dometrique (fluctuation de la temperature de 5\c, traitement de surface) n'ont pas de reel impact sur la compressibilite du sol. L'effet du taux de chargement et de sa duree n'a pu etre apprecie. Tous ces effets se superposent a une certaine dispersion des resultats due a la variabilite spatiale naturelle du sol en place.

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Wang, Rui. „Generalizing Multistage Partition Procedures for Two-parameter Exponential Populations“. ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2510.

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ANOVA analysis is a classic tool for multiple comparisons and has been widely used in numerous disciplines due to its simplicity and convenience. The ANOVA procedure is designed to test if a number of different populations are all different. This is followed by usual multiple comparison tests to rank the populations. However, the probability of selecting the best population via ANOVA procedure does not guarantee the probability to be larger than some desired prespecified level. This lack of desirability of the ANOVA procedure was overcome by researchers in early 1950's by designing experiments with the goal of selecting the best population. In this dissertation, a single-stage procedure is introduced to partition k treatments into "good" and "bad" groups with respect to a control population assuming some key parameters are known. Next, the proposed partition procedure is genaralized for the case when the parameters are unknown and a purely-sequential procedure and a two-stage procedure are derived. Theoretical asymptotic properties, such as first order and second order properties, of the proposed procedures are derived to document the efficiency of the proposed procedures. These theoretical properties are studied via Monte Carlo simulations to document the performance of the procedures for small and moderate sample sizes.

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Korchaiyapruk, Attasit 1977. „Development of framework for soil model input parameter selection procedures“. Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/80944.

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Wu, Ying-keh. „Empirical Bayes procedures in time series regression models“. Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/76089.

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In this dissertation empirical Bayes estimators for the coefficients in time series regression models are presented. Due to the uncontrollability of time series observations, explanatory variables in each stage do not remain unchanged. A generalization of the results of O'Bryan and Susarla is established and shown to be an extension of the results of Martz and Krutchkoff. Alternatively, as the distribution function of sample observations is hard to obtain except asymptotically, the results of Griffin and Krutchkoff on empirical linear Bayes estimation are extended and then applied to estimating the coefficients in time series regression models. Comparisons between the performance of these two approaches are also made. Finally, predictions in time series regression models using empirical Bayes estimators and empirical linear Bayes estimators are discussed.
Ph. D.

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Miller, David Michael. „Developing a procedure to identify parameters for calibration of a vissim model“. Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28135.

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Rosenbloom, E. S. „Selecting the best of k multinomial parameter estimation procedures using SPRT“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0005/MQ45119.pdf.

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Ezzet, F. L. „Applied sequential methods : Robustness studies and procedures for detecting parameter changes“. Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353915.

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Bücher zum Thema "Procedural parameters"

Palaszewski, Bo. On multiple test procedures for finding deviating parameters. Göteborg: University of Göteborg, 1993.

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Varis, Juha. A novel procedure for establishing clinching parameters for high strength steel sheet. Lappeenranta, Finland: Lappeenranta University of Technology, 2000.

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Double jeopardy without parameters: Re-characterisation in international criminal law. Antwerp: Intersentia, 2004.

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Eberhard, Harald. Nichtterritoriale Selbstverwaltung: Verfassungsrechtliche Parameter autonomer Verwaltung. Wien: Verlag Österreich, 2014.

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Hoff, J. C. Initial evaluation of the modified stepwise regression procedure to estimate aircraft stability and control parameters from flight test data. Cranfield, Bedford, England\: Cranfield University, College of Aeronautics, 1993.

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Kamenskaya, Valentina, und Leonid Tomanov. The fractal-chaotic properties of cognitive processes: age. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1053569.

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In the monograph the literature information about the nature of stochastic processes and their participation in the work of the brain and human behavior. Established that the real cognitive processes and mental functions associated with the procedural side of external events and the stochastic properties of the internal dynamics of brain systems in the form of fluctuations of their parameters, including cardiac rhythm generation and sensorimotor reactions. Experimentally proved that the dynamics of the measured physiological processes is in the range from chaotic regime to a weakly deterministic — fractal mode. Fractal mode determines the maximum order and organization homeostasis of cognitive processes and States, as well as high adaptive ability of the body systems with fractal properties. The fractal-chaotic dynamics is a useful quality to examine the actual physiological and psychological systems - a unique numerical identification of the order and randomness of the processes through calculation of fractal indices. The monograph represents the results of many years of experimental studies of the reflection properties of stochastic sensorimotor reactions, as well as stochastic properties of heart rate in children, Teens and adults in the age aspect in the speech activity and the perception of different kinds of music with its own frequency-spectral structure. Designed for undergraduates, graduate students and researchers that perform research and development on cognitive psychology and neuroscience.

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Tucker, Gary B. pH. IN Williams, R. D.; Schuman, G. E., editors, Reclaiming mine soils and overburden in the western United States--Analytic parameters and procedures. S.l: s.n, 1987.

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Knif, Johan. Parameter variability in the single factor market model: An empirical comparison of tests and estimation procedures using data from the Helsinki Stock Exchange. Helsinki: Finnish Society of Sciences and Letters, 1989.

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Vaez-Zadeh, Sadegh. Parameter Estimation. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198742968.003.0007.

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In this chapter, the estimation of permanent magnetic synchronous (PMS) motor parameters, including stator winding resistance, motor inductances, and magnitude of permanent magnet flux linage, is presented in two main categories, i.e., offline and online. Several offline schemes, including DC and AC standstill tests, no-load test, load test, and vector control schemes, are presented for estimation of all the motor parameters. Major online schemes used in the estimation of PMS motor parameters are also presented in this chapter. They include closed-loop observer-based estimation, model reference adaptive system (MRAS)-based estimation, recursive least-squares (RLS) estimation, and extended Kalman filter scheme. The online schemes take into account the motor parameter variations during motor operation. The motor model, estimation procedure, and the connection of estimation systems to the motor control system are discussed for each parameter estimation scheme.

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Amin, Annie, und Thomas W. Cutter. Anesthesia for Diagnostic and Therapeutic Radiologic Procedures. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190495756.003.0015.

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This chapter discusses the use of anesthetics in a variety of diagnostic and therapeutic radiologic procedures. Diagnostic procedures are anatomic or functional, minimally or noninvasive, and seldom require anesthesia support; anesthesia is typically only requested for these procedures because of a patient’s physiological or psychological needs. Recognizing and addressing a patient’s comorbidities and other concerns are similar to care given in the surgical setting. The imaging environment and procedures pose additional requirements and constraints, which are unique and require specific solutions; there is frequently no single best anesthetic technique for a given procedure. Radiologists serve the critical function of deciding whether to consult the anesthesiologist or perform a procedure alone. If the decision is to proceed with moderate sedation (administered by a nonanesthesia professional), the importance of vigilant clinical monitoring cannot be understated. In all cases, the patient deserves care that is consistent with the parameters, guidelines, and standards established by the various accrediting agencies and professional societies

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Buchteile zum Thema "Procedural parameters"

Nishinuma, Y., und R. Espesser. „Parameters and procedures“. In UNIX, 153–62. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09316-8_19.

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Marcotty, Michael, und Henry Ledgard. „Procedures and Parameters“. In The World of Programming Languages, 161–86. New York, NY: Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4612-4692-3_7.

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Gicquel, A., E. Anger und C. Héau. „Diamond Films: Procedures and Parameters“. In Microwave Discharges, 541–50. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-1130-8_35.

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Kauffman, John, Kevin Spencer und Thearon Willis. „Stored Procedures and Passing Parameters“. In Beginning ASP Databases, 541–95. Berkeley, CA: Apress, 1999. http://dx.doi.org/10.1007/978-1-4302-1121-1_15.

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Kastens, U., und M. Schmidt. „Lifetime analysis for procedure parameters“. In ESOP 86, 53–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/3-540-16442-1_4.

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Morgan, Carroll. „Procedures, Parameters, and Abstraction: Separate Concerns“. In On the Refinement Calculus, 47–58. London: Springer London, 1988. http://dx.doi.org/10.1007/978-1-4471-3273-8_3.

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Toskes, P. P. „Endocrine Parameters in the Diagnosis of Chronic Pancreatitis“. In Diagnostic Procedures in Pancreatic Disease, 259–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71128-2_37.

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Beger, H. G., und M. Büchler. „Outcome of Necrotizing Pancreatitis in Relation to Morphological Parameters“. In Diagnostic Procedures in Pancreatic Disease, 130–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71128-2_20.

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Matei, Alexander, und Stefan Ulbrich. „Detection of Model Uncertainty in the Dynamic Linear-Elastic Model of Vibrations in a Truss“. In Lecture Notes in Mechanical Engineering, 281–95. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_22.

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AbstractDynamic processes have always been of profound interest for scientists and engineers alike. Often, the mathematical models used to describe and predict time-variant phenomena are uncertain in the sense that governing relations between model parameters, state variables and the time domain are incomplete. In this paper we adopt a recently proposed algorithm for the detection of model uncertainty and apply it to dynamic models. This algorithm combines parameter estimation, optimum experimental design and classical hypothesis testing within a probabilistic frequentist framework. The best setup of an experiment is defined by optimal sensor positions and optimal input configurations which both are the solution of a PDE-constrained optimization problem. The data collected by this optimized experiment then leads to variance-minimal parameter estimates. We develop efficient adjoint-based methods to solve this optimization problem with SQP-type solvers. The crucial test which a model has to pass is conducted over the claimed true values of the model parameters which are estimated from pairwise distinct data sets. For this hypothesis test, we divide the data into k equally-sized parts and follow a k-fold cross-validation procedure. We demonstrate the usefulness of our approach in simulated experiments with a vibrating linear-elastic truss.

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McMahon, M. J. „Antiproteases and Nonspecific Inflammatory Parameters in the Monitoring of Acute Pancreatitis“. In Diagnostic Procedures in Pancreatic Disease, 117–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71128-2_18.

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Konferenzberichte zum Thema "Procedural parameters"

Erich, Floris, und Kenji Suzuki. „Cognitive robot programming using procedural parameters and complex event processing“. In 2016 IEEE International Conference on Simulation, Modeling, and Programming for Autonomous Robots (SIMPAR). IEEE, 2016. http://dx.doi.org/10.1109/simpar.2016.7862376.

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Erich, Floris. „End-user software engineering of cognitive robot applications using procedural parameters and complex event processing“. In SPLASH '16: Conference on Systems, Programming, Languages, and Applications: Software for Humanity. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2984043.2998538.

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Sormaz, Dusan N., und Prashant A. Borse. „Procedural Visualization of Manufacturing Processes in Distributed Environment“. In ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/detc2002/cie-34458.

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Visualization provides a tool to enhance understanding and data representation for information generated from numerical simulations and measurements. Visualization of a manufacturing process provides approximate simulation of machining with alternative process parameters, tool and work piece being examined in action. This paper presents a system that provides for visualization of machining processes. The developments were being carried out with Java and Java3d APIs. The process, feature and work piece geometry data are retrieved from knowledge-based system for generating process animation in Java3d environment. The data structures from Java classes are converting the data into GeometryArray objects using Java3d utilities such as GeometryInfo, Triangulator and others. For process animation, the important classes involved are Morphing, Behavior and various interpolators. The complete process animation is guided using a single alpha timer object with supplementary geometry arrays generating realistic machining process. Prototype has been implemented so that it accepts data (tool, feature, work piece geometries) from knowledge based process planner and generates data driven animation in a distributed environment.

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Bilston, Ken J., und Leigh Fletcher. „The Australian Petroleum Pipeline Code AS 2885 - 1997“. In 1998 2nd International Pipeline Conference. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/ipc1998-2072.

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The Australian Standard AS 2885 - 1997 Pipelines Gas and Liquid Petroleum contains mandatory risk assessment procedures which are deeply integrated into route selection, design and operation and maintenance. The procedures require systematic identification and assessment of threats which are specific to the pipeline, the location, the threat itself and its effect on the pipeline. External interference protection design is one fundamental step in the risk assessment procedure which involves formal specification of physical measures for the prevention of damage and procedural measures for the prevention if incidents with the potential to cause external interference. A land classification system based on land use and design which separates the design factor for pressure containment from the requirements for other engineering parameters combine to ensure that economy, reliability and public safety are optimised together. A fracture control plan is required as part of the integrated design process and the plan requires formal and systematic treatment of fluid composition and type and fracture arrest length. The welding section of the standard differs significantly from API 1104 and includes fitness-for-purpose defect acceptance limits based on the EPRG guidelines.

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Gordon, Danica, und Chandrasekhar Thamire. „Ultrasound Hyperthermia: Dose Estimation and Device Design“. In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87790.

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As a cancer treatment modality, thermal ablation offers the advantages of being less invasive and posing fewer post-procedural complications compared to traditional cancer therapies. It involves destroying cancerous cells by subjecting them to the appropriate amount of heat dose. In the present study, high frequency ultrasound (US) ablation is theoretically examined for effectiveness as a treatment modality for intraluminal and extracorporeal cancer treatment. Objectives of this study are to 1) develop thermal-damage correlations for a variety of cancer cells and 2) design US treatment devices, based on thermal damage correlations developed, and treatment planning protocols. To achieve these goals, thermal damage information for different cell types is first determined from earlier studies or pilot experiments. Required US doses for specific tissues are determined next through numerical experiments. Device design and estimation of thermal coagulation contours is then performed by comparing temperature-history data against the thermal-damage data for a range of device parameters. Treatment protocols are finally developed based on the analysis of the results for a range of applicable device parameters. Results are presented in terms of correlations for the volume and location of ablated tissue corresponding to a range of operating parameter values.

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Gil, Adriano, Aasim Khurshid, Juliana Postal und Thiago Figueira. „Visual assessment of equirectangular images for virtual reality applications In Unity“. In XXXII Conference on Graphics, Patterns and Images. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/sibgrapi.est.2019.8337.

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Virtual Reality (VR) applications provide an immersive experience when using panoramic images that contain a 360-degree view of the scene. Currently, the equirectangular image format is the widely used pattern to represent these panoramic images. The development of a virtual reality viewer of panoramic images should consider several parameters that define the quality of the rendered image. Such parameters include resolution configurations, texture-to-objects mappings and deciding from different rendering approach, but to select the optimal value of these parameters, visual quality analysis is required. In this work, we propose a tool integrated within Unity editor to automate this quality assessment using different settings for the visualization of equirectangular images. We compare the texture mapping of a skybox with a procedural sphere and a cubemap using full-reference objective metrics for Image Quality Analysis (IQA). Based on the assessment results, the tool decides how the final image will be rendered at the target device to produce a visually pleasing and high-quality image.

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Konell, Jeremiah, Brian Dedeke, Chris Hurst, Shanshan Wu und Joseph Bratton. „A Midstream Pipeline Operator’s Perspective on the Implementation of API 1183“. In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9486.

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Abstract In preparation for the upcoming (currently in draft form) Recommended Practice (RP) on Dent Assessment and Management (API 1183) [1], Explorer Pipeline Company, Inc. (Explorer) has performed an internal procedural review to determine how to effectively implement the methodologies into their Integrity Management Program (IMP). Explorer’s pipeline system transports hazardous liquids and is comprised of over 1,800 miles of pipeline ranging in diameter from 3 to 28 inches. The majority of the system was installed in the 1970s, but parts of the system were also installed as early as the 1940s. The primary focus of this review and implementation into the IMP is in regard to performing and responding to in-line inspection (ILI) based integrity assessments. Prior to the development of API 1183, dent assessment and management consisted of following a set of prescriptive condition assessments outlined in the Code of Federal Regulations (CFR) Title 49, Part 195.452. In order to do this, pipeline operators required basic information, such as dent depth, orientation, and interaction with potential stress risers such as metal loss, cracks, gouges, welds, etc. However, in order to fully implement API 1183, additional parameters are needed to define the dent shape, restraint condition, defect interaction, and pipeline operating conditions. Many new and necessary parameters were identified throughout the IMP, from the very initial pre-assessment stage (new ILI vendor requirements as part of the tool/vendor selection process) all the way to defining an appropriate reassessment interval (new process of analyzing dent fatigue life). This paper summarizes the parameters of API 1183 that were not part of Explorer’s current IMP. The parameters are identified, and comments are provided to rank the level of necessity from “must have” to “beneficial” (e.g. can sound and conservative assumptions be made when a parameter is not available). Comments are also provided to explain the impact of applying assumptions in place of parameters. The table of identified parameters should provide a useful tool for other pipeline operators who are considering implementing API 1183 as part of their overall IMP.

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Groves, Leah, Adam Rankin, Terry M. Peters und Elvis C. S. Chen. „The effect of imaging and tracking parameters on ultrasound probe calibration robustness“. In Image-Guided Procedures, Robotic Interventions, and Modeling, herausgegeben von Baowei Fei und Cristian A. Linte. SPIE, 2019. http://dx.doi.org/10.1117/12.2513057.

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Back, Ralph-Johan, und Viorel Preoteasa. „Reasoning about recursive procedures with parameters“. In the 2003 workshop. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/976571.976573.

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Gromniak, Martin, Nils Gessert, Matthias Schlüter und Alexander Schlaefer. „Two-path 3D CNNs for calibration of system parameters for OCT-based motion compensation“. In Image-Guided Procedures, Robotic Interventions, and Modeling, herausgegeben von Baowei Fei und Cristian A. Linte. SPIE, 2019. http://dx.doi.org/10.1117/12.2512823.

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Berichte der Organisationen zum Thema "Procedural parameters"

Evans, James, David Kretschmann und David Green. Procedures for estimation of Weibull parameters. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2019. http://dx.doi.org/10.2737/fpl-gtr-264.

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Singhvi, Punit, Javier García Mainieri, Hasan Ozer und Brajendra Sharma. Rheology-Chemical Based Procedure to Evaluate Additives/Modifiers Used in Asphalt Binders for Performance Enhancements: Phase 2. Illinois Center for Transportation, Juni 2021. http://dx.doi.org/10.36501/0197-9191/21-020.

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The increased use of softer binders in Illinois over the past decade is primarily attributed to the increased use of recycled materials in asphalt pavement construction. The shift in demand of using PG 58-28 over PG 64-22 has resulted in potential alternative methods to produce softer binders more economically using proprietary products. However, there are challenges in using these proprietary products for asphalt modification because of uncertainty in their long-term performance and significant variability in binder chemistry. The current SuperPave performance grading specification for asphalt binders is insufficient in differentiating binders produced from these modifiers. Therefore, the objective of this study is to evaluate the performance of various softener-type asphalt binder modifiers using a wide array of rheological and chemistry tests for their integration into the Illinois Department of Transportation’s material specifications. The small-strain rheological tests and their parameters allowed for consistent grouping of modified binders and can be used as surrogates to identify performing and nonperforming asphalt binders. A new parameter, Δ|G*|peak τ, was developed from the linear amplitude sweep test and showed potential to discriminate binders based on their large-strain behavior. Chemistry-based parameters were shown to track aging and formulation changes. The modifier sources were identified using fingerprint testing and were manifested in the modified binder chemical and compositional characteristics. The two sources of base binders blended with the modifiers governed the aging rate of the modified binders. Mixture performance testing using the Illinois Flexibility Index Test and the Hamburg Wheel-Track Test were consistent with the rheological and chemical findings, except for the glycol amine-based modified binder, which showed the worst cracking performance with the lowest flexibility index among the studied modifiers. This was contrary to its superior rheological performance, which may be attributed to lower thermal stability, resulting in high mass loss during mixing. According to the characterization of field-aged binders, laboratory aging of two pressurized aging vessel cycles or more may represent realistic field aging of 10 to 15 years at the pavement surface and is able to distinguish modified binders. Therefore, an extended aging method of two pressurized aging vessel cycles was recommended for modified binders. Two different testing suites were recommended for product approval protocol with preliminary thresholds for acceptable performance validated with field-aged data.

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Lee, Kang S. A Robust Subset Selection Procedure for Location Parameter Case Based on Hodges-Lehmann Estimators. Fort Belvoir, VA: Defense Technical Information Center, November 1988. http://dx.doi.org/10.21236/ada204289.

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Ueng, Tzou-Shin, und Jian-Chu Chen. Computational procedures for determining parameters in Ramberg-Osgood elastoplastic model based on modulus and damping versus strain. Office of Scientific and Technical Information (OSTI), Juli 1992. http://dx.doi.org/10.2172/6496483.

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Ramirez, J., und Jhon Smith. Performance-Related Specifications for Concrete Bridge Superstructures, Volume 1: Performance Parameters and Related Procedure for Concrete Bridge Superstructures. West Lafayette, IN: Purdue University, 2002. http://dx.doi.org/10.5703/1288284313289.

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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi und Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibratory table. The results show an increase in density with the increase in amplitude and frequency of vibration. However, the increase in density with the increase in amplitude of vibration is more pronounced for the coarse aggregates than for the sands. A comparison of the maximum dry densities of different test materials shows that the dry densities obtained after compaction using the vibratory hammer are greater than those obtained after compaction using the vibratory table when both tools were used at the highest amplitude and frequency of vibration available. Large-scale vibratory roller compaction tests were performed in the field for No. 30 backfill soil to observe the effect of vibration frequency and number of passes on the compaction density. Accelerometer sensors were attached to the roller drum (Caterpillar, model CS56B) to measure the frequency of vibration for the two different vibration settings available to the roller. For this roller and soil tested, the results show that the higher vibration setting is more effective. Direct shear tests and direct interface shear tests were performed to study the impact of particle characteristics of the coarse-grained backfill materials on interface shear resistance. The more angular the particles, the greater the shear resistance measured in the direct shear tests. A unique relationship was found between the normalized surface roughness and the ratio of critical-state interface friction angle between sand-gravel mixture with steel to the internal critical-state friction angle of the sand-gravel mixture.

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Patel, Reena. Complex network analysis for early detection of failure mechanisms in resilient bio-structures. Engineer Research and Development Center (U.S.), Juni 2021. http://dx.doi.org/10.21079/11681/41042.

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Bio-structures owe their remarkable mechanical properties to their hierarchical geometrical arrangement as well as heterogeneous material properties. This dissertation presents an integrated, interdisciplinary approach that employs computational mechanics combined with flow network analysis to gain fundamental insights into the failure mechanisms of high performance, light-weight, structured composites by examining the stress flow patterns formed in the nascent stages of loading for the rostrum of the paddlefish. The data required for the flow network analysis was generated from the finite element analysis of the rostrum. The flow network was weighted based on the parameter of interest, which is stress in the current study. The changing kinematics of the structural system was provided as input to the algorithm that computes the minimum-cut of the flow network. The proposed approach was verified using two classical problems three- and four-point bending of a simply-supported concrete beam. The current study also addresses the methodology used to prepare data in an appropriate format for a seamless transition from finite element binary database files to the abstract mathematical domain needed for the network flow analysis. A robust, platform-independent procedure was developed that efficiently handles the large datasets produced by the finite element simulations. Results from computational mechanics using Abaqus and complex network analysis are presented.

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Bowles, David, Michael Williams, Hope Dodd, Lloyd Morrison, Janice Hinsey, Tyler Cribbs, Gareth Rowell, Michael DeBacker, Jennifer Haack-Gaynor und Jeffrey Williams. Protocol for monitoring aquatic invertebrates of small streams in the Heartland Inventory & Monitoring Network: Version 2.1. National Park Service, April 2021. http://dx.doi.org/10.36967/nrr-2284622.

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The Heartland Inventory and Monitoring Network (HTLN) is a component of the National Park Service’s (NPS) strategy to improve park management through greater reliance on scientific information. The purposes of this program are to design and implement long-term ecological monitoring and provide information for park managers to evaluate the integrity of park ecosystems and better understand ecosystem processes. Concerns over declining surface water quality have led to the development of various monitoring approaches to assess stream water quality. Freshwater streams in network parks are threatened by numerous stressors, most of which originate outside park boundaries. Stream condition and ecosystem health are dependent on processes occurring in the entire watershed as well as riparian and floodplain areas; therefore, they cannot be manipulated independently of this interrelationship. Land use activities—such as timber management, landfills, grazing, confined animal feeding operations, urbanization, stream channelization, removal of riparian vegetation and gravel, and mineral and metals mining—threaten stream quality. Accordingly, the framework for this aquatic monitoring is directed towards maintaining the ecological integrity of the streams in those parks. Invertebrates are an important tool for understanding and detecting changes in ecosystem integrity, and they can be used to reflect cumulative impacts that cannot otherwise be detected through traditional water quality monitoring. The broad diversity of invertebrate species occurring in aquatic systems similarly demonstrates a broad range of responses to different environmental stressors. Benthic invertebrates are sensitive to the wide variety of impacts that influence Ozark streams. Benthic invertebrate community structure can be quantified to reflect stream integrity in several ways, including the absence of pollution sensitive taxa, dominance by a particular taxon combined with low overall taxa richness, or appreciable shifts in community composition relative to reference condition. Furthermore, changes in the diversity and community structure of benthic invertebrates are relatively simple to communicate to resource managers and the public. To assess the natural and anthropo-genic processes influencing invertebrate communities, this protocol has been designed to incorporate the spatial relationship of benthic invertebrates with their local habitat including substrate size and embeddedness, and water quality parameters (temperature, dissolved oxygen, pH, specific conductance, and turbidity). Rigid quality control and quality assurance are used to ensure maximum data integrity. Detailed standard operating procedures (SOPs) and supporting information are associated with this protocol.

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