Relevant bibliographies by topics / Initial parameter

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Initial parameter'

Author: Grafiati
Published: 5 June 2025
Last updated: 8 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Initial parameter.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Initial parameter"

1

A.T., Hovhannisyan, and Yenokyan K.R. "APPROACHES TO THE SELECTION OF INITIAL MAGNETIC PARAMETERS FOR THE CALCULATION OF A PERMANENT MAGNET AND EVALUATION OF CALCULATION WEBSITES." ИННОВАЦИОННЫЕ НАУЧНЫЕ ИССЛЕДОВАНИЯ 2023. 8-1(31) (September 30, 2023): 34–40. https://doi.org/10.5281/zenodo.8395597.

Full text
Abstract:
This work presents the relationship between magnetic properties, and selection criteria in the process of calculation of permanent magnet parameters as well as the accuracy of information retrieval of technical data, the significance of output parameters in magnetic measurements, and the evaluation of online computational websites according to calculation accuracy. The data of investigations, analysis, and conclusions on the example of calculation of the magnetic field induction inside and outside the working points and magnetic field induction of cylindrical permanent magnet magnetized along the length.
APA, Harvard, Vancouver, ISO, and other styles
2

Jacquez, J. A., and T. Perry. "Parameter estimation: local identifiability of parameters." American Journal of Physiology-Endocrinology and Metabolism 258, no. 4 (1990): E727—E736. http://dx.doi.org/10.1152/ajpendo.1990.258.4.e727.

Full text
Abstract:
For biological systems one often cannot set up experiments to measure all of the state variables. If only a subset of the state variables can be measured, it is possible that some of the system parameters cannot influence the measured state variables or that they do so in combinations that do not define the parameters' effects separately. Such parameters are unidentifiable and are in theory unestimable. Given a model of the system, linear or nonlinear, and initial estimates of the values of all parameters, we exhibit a simple theory and describe a program for checking the local identifiability of the parameters at the initial estimates for given experiments on the model. The program, IDENT, is available from the authors.
APA, Harvard, Vancouver, ISO, and other styles
3

Lahajnar, Sebastian, and Alenka Rožanec. "Initial Coin Offering (ICO) evaluation model." Investment Management and Financial Innovations 15, no. 4 (2018): 169–82. http://dx.doi.org/10.21511/imfi.15(4).2018.14.

Full text
Abstract:
High-tech companies operating in the field of blockchain technology use the Initial Coin Offering (ICO) to raise start-up capital. It is a fairly new, non-standardized and poorly regulated way of collecting start-up funding that can bring high yields to investors in the short term, but investors also have to be ready to take on high risks. The purpose of this article is to define a decision model for the evaluation of ICO projects, which provides a systematic, transparent, methodological approach to making decisions on investing in them. For that purpose, the authors analyzed a number of factors, which directly or indirectly influence the successful implementation of ICO projects, and the researchers extracted the most important among them (model parameters). In order to build the decision model, used a qualitative method for the hierarchical multi-parameter evaluation of DEX, which using symbolic parameters and combining functions in the form of if-then rules ensures the most freely and flexible combining assessment parameters into a uniform model. In the article, the use of proposed decision model was tested in practice on multiple ICO processes. The article details the decision-making process in the case of CargoX, and also summarizes the results of the evaluation of ICOs Tokens.net, BitClave, Neuromation and WePower.
APA, Harvard, Vancouver, ISO, and other styles
4

Sikandar, Waseem, Umar Khan, Naveed Ahmed, and Syed Tauseef Mohyud-Din. "Variation of parameters method with an auxiliary parameter for initial value problems." Ain Shams Engineering Journal 9, no. 4 (2018): 1959–63. http://dx.doi.org/10.1016/j.asej.2016.09.014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Le Vine, David M., Saji Abraham, Cuneyt Utku, and Emmanuel P. Dinnat. "Aquarius Third Stokes Parameter Measurements: Initial Results." IEEE Geoscience and Remote Sensing Letters 10, no. 3 (2013): 520–24. http://dx.doi.org/10.1109/lgrs.2012.2211994.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Yu, Lisan, and James J. O'Brien. "On the Initial Condition in Parameter Estimation." Journal of Physical Oceanography 22, no. 11 (1992): 1361–64. http://dx.doi.org/10.1175/1520-0485(1992)022<1361:oticip>2.0.co;2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Qiao, Liwen, Jia-Xin Peng, Baiqiang Zhu, Weiping Zhang, and Keye Zhang. "Optimal initial states for quantum parameter estimation based on Jaynes–Cummings model [Invited]." Chinese Optics Letters 21, no. 10 (2023): 102701. http://dx.doi.org/10.3788/col202321.102701.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bumrungkun, Prachya, Kosin Chamnongthai, and Wisarn Patchoo. "Initial Geometrical Templates with Parameter Sets for Active Contour on Skin Cancer Boundary Segmentation." Journal of Healthcare Engineering 2021 (August 3, 2021): 1–30. http://dx.doi.org/10.1155/2021/9528460.

Full text
Abstract:
For active-contour-based surgery systems, the success of skin cancer boundary segmentation depends on the initialization point of the snake model, which is a task originally performed by skillful experts, and on the parameters set for the algorithms of active contour. This paper proposes initial geometrical templates and parameter sets for the active contour on skin cancer boundary segmentation. To establish initial geometrical templates and parameter sets for the active contour, first, template candidates, which are geometrically designed by users in advance, are simply calculated based on similarity with a skin cancer boundary, and the candidate with the least difference is selected as an initial template. Initially, all candidate templates are performed before the test with some selected skin cancer samples by randomly varying needed parameters to determine parameter sets for each template. The parameter set is therefore implicitly selected as the suitable set with the selected initial template. Experiments with 227 skin cancer samples were performed based on our proposed initial templates and parameter sets, and the results show 99.46% accuracy, 97.43% sensitivity, and 99.87% specificity approximately in which accuracy, sensitivity, and specificity were improved by 0.26%, 0.36%, and 0.26%, respectively, compared with the conventional method.
APA, Harvard, Vancouver, ISO, and other styles
9

Al-Bayati, Abbas, and Ban Mitras. "New Initial Parameter for the Constrained Optimization Method." AL-Rafidain Journal of Computer Sciences and Mathematics 3, no. 1 (2006): 61–68. http://dx.doi.org/10.33899/csmj.2006.164036.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Prabawani, Bulan, and Sudharto Prawata Hadi. "Sustainability Indicator: An Initial Parameter for Convenience Product." Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 19, no. 1 (2022): 179–89. http://dx.doi.org/10.14710/presipitasi.v19i1.179-189.

Full text
Abstract:
The environmental awareness of consumer has been growing along with the increase of knowledge, education and access to information. The demand from the government, media, and community has also increasingly escalated the pressure to companies to produce environmentally friendly products. This eventually encourages greenwashing practices extensively which are unfavorable to consumers because the practice is frequently included as marketing scam. In addition, the existing environmentally-based certification is primarily oriented to the planet and profit aspects of the triple bottom lines and tends to ignore the community. Hence, this study reviews a variety of green-based certifications or sustainability indicators which has existed particularly in Indonesia and their potential for the development of convenience products, products which are consumed in high frequency since they are cheap and consumed daily. This research involves explorative analysis using open secondary data from public journalism, media releases, academic references, and official webpages. Furthermore, this research describes current green-based certifications and presents the initial concept of a sustainability indicator which involved the planet and humans concurrently as well as adopt Proper label as product labelling.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Initial parameter"

1

Elago, David. "Robust computational methods for two-parameter singular perturbation problems." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_1693_1308039217.

Full text
Abstract:
<p>This thesis is concerned with singularly perturbed two-parameter problems. We study a tted nite difference method as applied on two different meshes namely a piecewise mesh (of Shishkin type) and a graded mesh (of Bakhvalov type) as well as a tted operator nite di erence method. We notice that results on Bakhvalov mesh are better than those on Shishkin mesh. However, piecewise uniform meshes provide a simpler platform for analysis and computations. Fitted operator methods are even simpler in these regards due to the ease of operating on uniform meshes. Richardson extrapolation is applied on one of the tted mesh nite di erence method (those based on Shishkin mesh) as well as on the tted operator nite di erence method in order to improve the accuracy and/or the order of convergence. This is our main contribution to this eld and in fact we have achieved very good results after extrapolation on the tted operator finitete difference method. Extensive numerical computations are carried out on to confirm the theoretical results.</p>
APA, Harvard, Vancouver, ISO, and other styles
2

Bichard, James. "Some examples of the spatial evolution of two-parameter processes with non-adapted initial conditions." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3119/.

Full text
Abstract:
The central result of this thesis is an enlargement of filtrations result for the filtration (Fx; x ≥ 0), where Fx = σ{Bys : y ≤ x, s ∈ [0,∞)} and (Bxt; x ∈ R, t ∈ [0,∞)) is a Brownian sheet on a complete probability space. Although this is a fairly straightforward extension of a result presented in [Yor97] for Brownian filtrations, it is of use to us in a couple of applications. The first is a discussion of ‘bridged’ Brownian sheets, in which we try to describe the law of a Brownian sheet which is fixed along some curve in the parameter space. The second application is a study of the spatial evolution of solutions to the stochastic heat equation. We fix a starting point in space, and describe the spatial evolution as driven by an (Fx; x ≥ 0)-adapted noise. Unfortunately, we find that the initial condition is not in F0. If we add this initial information to (Fx; x ≥ 0), the driving noise is no longer a martingale, but our enlargement result allows us to write a semimartingale decomposition, in some sense. We are in fact able to write a system of stochastic differential equations which describe the spatial evolution of solutions, such that each equation is driven by a martingale with respect to this larger filtration.
APA, Harvard, Vancouver, ISO, and other styles
3

Roy, Sayan Basu. "Relaxing persistence of excitation for parameter convergence in adaptive control : an initial excitation based approach." Thesis, IIT, Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8067.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

McWilliam, Noel J. "Parameter identification and initial state reconstruction for linear and non-linear systems with applications to anti-cancer drug pharmacokinetics and gap-phase forest canopy models." Thesis, University of Warwick, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399502.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Cameron, Neil. "Identifying pilot model parameters for an initial handling qualities assessment." Thesis, University of Glasgow, 2002. http://theses.gla.ac.uk/4824/.

Full text
Abstract:
It is desirable to make an assessment of likely handling qualities to identify any deficiencies in a helicopter control system at an early stage in the design process before an expensive and potentially dangerous prototype is constructed. Inverse simulation offers a modelling technique that can be used for generating the data needed for such an assessment. Inverse simulation differs from conventional forward simulation in that the vehicle flight path is the input and the state and control time histories required for the task are generated. The inverse algorithm however, does not account for the pilot contribution to the flight data, thus the work herein demonstrates a method whereby this can be achieved. To incorporate pilot effect into the Helinv generated data, the latter is applied as the command signal to the Man-Machine Control System (MMCS), which is a closed loop system encompassing the helicopter vehicle dynamics and a model of the pilot known as the Precision Pilot Model (PPM). The PPM Human Equalisation Characteristics (REC) are determined via a constrained optimisation technique and the pilot effect is added in the system output. Validation of this technique is achieved through a case study whereby several operators, with different levels of experience, pilot a reduced order Puma helicopter model through a predefined mission task in a flight simulator constructed during the project. The equalisation characteristics are then determined for each pilot and compared with those generated using Helinv. A handling qualities assessment is presented for both sets of results and conclusions concerning the validity of Helinv with additional pilot effect finally drawn.
APA, Harvard, Vancouver, ISO, and other styles
6

Rossouw, Abrie. "Determining the initial design parameters of a radial-inflow turbine / Abrie Rossouw." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1373.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

McCabe, John Michael Arnold Christopher J. "Parameters to facilitate the creation of initial response capsules for survivors of prodigious disasters." Auburn, Ala., 2006. http://hdl.handle.net/10415/1299.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Donley, Stephen John. "Initial identification and investigation of parameters for choosing the most appropriate rapidly assembled or deployable structure." Thesis, Springfield, Va. : Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA393183.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Lainio, Nellie, and Christian Östanbäck. "Kalkylanalys av stambyten : En jämförelse av stambytesprojekt för att belysa viktiga parametrar vid initial kalkylering." Thesis, KTH, Byggteknik och design, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232169.

Full text
Abstract:
Sweden’s real estate portfolio has a major renovation requirement. A large part of the renovations that need to be carried out are pipe replacement projects. These are major projects and not all housing associations are aware of the extent financial consequences it brings. Therefore, planning in the economy throughout the project are important. This thesis aims at seeing what affects a production estimate to differ from the actual final cost.ÅF infrastructure division thought that their calculations of the estimated cost for production too often differs to the actual final cost. At a first meeting with ÅF, it appeared that there has been discussion and thought for solutions to the problem for some time. The thesis is based on 3 issues that will provide answers on how to make a better production estimate.In order to answer the questions, project managers have been interviewed and literature has been studied. The assigned reference objects have been analyzed and compared in tables. This thesis has resulted in the insight of that the project managers at ÅF are relatively good at estimating the original cost of what the contractor produces for the pipe replacement projects. After the analysis, recommendations have been presented that can be developed and implemented in the ÅF approach to calculate their estimated cost of production even better. By calculating the costs that are not included in the original cost for the contractors in a more methodical manner, based on experience, the production cost can be optimized.The work has been going on for a limited time with delimitations and a selection of projects. The results presented in the report should be applied with caution and awareness about the differences in the projects.
APA, Harvard, Vancouver, ISO, and other styles
10

Liu, Jiaping. "A Study on Distribution Learning of Generative Adversarial Networks." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41250.

Full text
Abstract:
This thesis is an exploration of the properties of shallow generative adversarial networks (GANs). We focus on several aspects of GANs to investigate the learnability of a class of distributions using shallow GANs and conduct experiments to explore the influence of these aspects on the performance of the GAN models. We identify and analyze several pathological phenomena in theoretical analysis and experiments, and propose potential solutions for them.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Initial parameter"

1

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

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mateo, Mario Luis. The structural parameters and initial mass functions of Magellanic Cloud star clusters. University of Michigan, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Cook, M. V. Initial review of research into the application of modified stepwise regression for the estimation of aircraft stability and control parameters. College of Aeronautics, Cranfield Institute of Technology, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Voronin, Evgeniy, Aleksandr Chibunichev, and Yuriy Blohinov. Reliability of solving inverse problems of analytical photogrammetry. INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/2010462.

Full text
Abstract:
The monograph is devoted to computational aspects of photogrammetric reconstruction of narrow-angle bundles of projecting beams that existed during the survey. Methods of improving the conditionality of systems of linear equations, ensuring the convergence of iterative refinement of their roots, increasing the stability of calculations in finite precision machine arithmetic are considered. The main efforts are focused on solving the problem of establishing reliable measurement weights within the framework of the least squares method. The criteria for the reliability of the weights are determined. Algorithms have been developed for matching the initial values of the measurement weights, adjusting the weights during equalization, and identifying insignificant parameters of mathematical measurement models. A new method for evaluating the accuracy of the equalization results has been developed.&#x0D; For specialists engaged in the processing of remote sensing data of the Earth and mathematical processing of the results of heterogeneous measurements using weighted methods of statistical estimation of the parameters of functional dependencies.
APA, Harvard, Vancouver, ISO, and other styles
5

Serikov, Sergey. Impact on impact strength. INFRA-M Academic Publishing LLC., 2024. http://dx.doi.org/10.12737/2161513.

Full text
Abstract:
The main purpose of the monograph is to identify the main patterns in assessing the operational reliability of metals on the basis of a mathematical model of unsteady deformation of an isotropic viscoplastic medium, with specified boundary, initial conditions and energy criterion of destruction. A physically based computational and experimental method for metal identification is formulated. Practical examples of the efficiency of the method for a wide class of materials are given: structural steels, titanium, aluminum and copper alloys. The assessment of the operational reliability of metals is based on a comparison of matrices containing seven parameters: tensile strength, yield strength, elongation, coefficient of dynamic viscosity, specific energy of fracture, rate of deformation, temperature. The book also pays a lot of attention to experimental data on the classical value of impact strength. It is shown that it actually reflects the properties of the material in the range of elastic-brittle state, but not in the scheme of a viscoplastic medium. It is intended for scientific and engineering workers, students involved in metal science and fracture mechanics.
APA, Harvard, Vancouver, ISO, and other styles
6

Fonseca, Carlos M. da. A panorama of mathematics: Pure and applied : Conference on Mathematics and Its Applications, November 14-17, 2014, Kuwait University, Safat, Kuwait. American Mathematical Society, 2016.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Sheehan, Michelle. Parameterizing Ergativity: An Inherent Case Approach. Edited by Jessica Coon, Diane Massam, and Lisa Demena Travis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780198739371.013.3.

Full text
Abstract:
This chapter posits a parameter hierarchy to capture micro-parametric variation in ergative (or rather non-accusative) alignment, building on the proposal that ergative is an inherent case, assigned by little vs. Initial parameters determine the distribution of this inherent case across instances of little v in a given language, sensitive to various thematic features, and subsequent dependent parameters determine further properties of ergative-assigning vs such as the presence of a movement trigger and the suppression of structural Case features. This gives rise to a number of distinct ergative types depending on the distribution of ergative case, the presence/absence of syntactic ergativity, and the source of absolutive case in transitive contexts. The resultant parameter hierarchy serves to restrict the space of variation, modeling a number of proposed implicational universals in this domain, and provides a potential solution to the subset problem in acquisition by encoding a notion of relative markedness.
APA, Harvard, Vancouver, ISO, and other styles
8

Ledgeway, Adam. On the decline of edge-fronting from Latin to Romance. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198747307.003.0014.

Full text
Abstract:
Discontinuous structures produced by edge-fronting represent one distinctive feature of Latin regarding Romance. This difference follows from the head parameter: whereas Romance is consistently head-initial, Latin fluctuates between different settings as a result of its occupying an intermediate position in the gradual shift from head-finality to head-initiality. In turn, this difference in the head parameter is responsible for the observed variation in edge-fronting, since its setting determines the application of antilocality in constraining movement. Concretely, if head-finality is the output of a roll-up operation raising the complement to the specifier to the left of its head, suspension of antilocality constitutes a sine qua non for head-final languages like Latin. In Romance, by contrast, the head parameter is aligned with the head-initial setting such that roll-up (hence antilocal) movement never arises. This investigation thus derives from the different settings of the head parameter a concomitant parametrization in the role of antilocality.
APA, Harvard, Vancouver, ISO, and other styles
9

McCrea, Michael Edward. Determination of unknown parameters in a general, linear, 2X2, analytic system of ordinary differential equations. 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Back, Kerry E. Equilibrium and Efficiency. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190241148.003.0004.

Full text
Abstract:
Pareto optima and competitive equilibria are defined. Allocations are functions of market wealth (sharing rules) in Pareto optima, which means that all risks except market wealth are perfectly shared. Equilibria in complete markets are shown to be equivalent to Arrow‐Debreu equilibria and to be Pareto optimal. If investors all have linear risk tolerance with the same cautiousness parameter, then equilibria are Pareto optimal, equilibrium prices are independent of the initial wealth allocation (Gorman aggregation), and two‐fund separation holds (all investors hold the risk‐free asset and the market portfolio).
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Initial parameter"

1

Brunner, Christopher, Andrea Garavaglia, and Christophe Chevallier. "Initial Parameter Settings." In WCDMA (UMTS) Deployment Handbook. John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470035749.ch4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Malik, Irawan, Sairul Effendi, Soegeng Witjahjo, and Muhammad Taufik. "Initial Study of Two-Blade Propeller Design Parameter." In Atlantis Highlights in Engineering. Atlantis Press International BV, 2023. http://dx.doi.org/10.2991/978-94-6463-118-0_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Macutkevičius, Andrius, and Raimundas Junevičius. "Identification of Specific System Parameter Space in Initial Research Stage." In TRANSBALTICA XIII: Transportation Science and Technology. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25863-3_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Toyoki, Hiroyasu, and Katsuya Honda. "Dynamics of Random Interfaces with a Nonzero Initial Order Parameter." In Science on Form. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3757-4_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kim, Seon Jin, Yu Sik Kong, Won Taek Jung, Jong Taek Yeom, and Nho Kwang Park. "Creep Life Prediction of Waspaloy Using the Initial Strain Parameter Technique." In Key Engineering Materials. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.2644.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Calver, Jonathan, Jienan Yao, and Wayne Enright. "Using Shooting Approaches to Generate Initial Guesses for ODE Parameter Estimation." In Springer Proceedings in Mathematics & Statistics. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63591-6_25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Pulch, Roland, and Maha Youssef. "Machine Learning for Initial Value Problems of Parameter-Dependent Dynamical Systems." In Scientific Computing in Electrical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-84238-3_26.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Thiem, Xaver, Holger Rudolph, Robert Krahn, Steffen Ihlenfeldt, Christof Fetzer, and Jens Müller. "Adaptive Thermal Model for Structure Model Based Correction." In Lecture Notes in Production Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34486-2_6.

Full text
Abstract:
AbstractThis paper discusses structure model based correction of thermal induced errors at machine tools. Using a machine model evaluated in thermal real-time, the thermal induced errors at the tool center point (TCP) are calculated based on information gotten from the machine control (e.g., axes velocities, positions, and motor currents) and ambient temperature. The machine model describes the physical relationships and considers the structure and structural variability resulting in traverse movements of the feed axes – the so-called structure model. To create this, finite elements are used as thermal and thermo-elastic models, and model order reduction (MOR) techniques are used to enable the calculation of high-resolution models in thermal real-time. Subsequent parameter updates can improve the accuracy of the initial parameter set of thermal models. A systematic procedure developed for this purpose and its application to a demonstrator machine are presented. For the update, parameters are selected which can change over the operating time, e.g., due to wear. Temperature sensor positions are chosen, sensitive to changes in these parameters. Simulations with parameters varied in a plausible range are used to determine whether parameter optimizations are reasonable. The parameter optimization runs in a trusted execution environment (TEE) on a server in parallel to the calculation of the correction model on the machine control. The confidential input data of the model and the model itself have to be protected from unauthorized access. The efficient model calculation and parameter optimization in a secure server environment leads to an adaptive thermal model (digital twin).
APA, Harvard, Vancouver, ISO, and other styles
9

Holzinger, Emily R., Scott M. Dudek, Eric C. Torstenson, and Marylyn D. Ritchie. "ATHENA Optimization: The Effect of Initial Parameter Settings across Different Genetic Models." In Evolutionary Computation, Machine Learning and Data Mining in Bioinformatics. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20389-3_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Richter, Michael, and Ariel Rubinstein. "3. Status and Indoctrination." In No Prices No Games!, 2nd ed. Open Book Publishers, 2024. http://dx.doi.org/10.11647/obp.0438.03.

Full text
Abstract:
In this chapter, the parameter which brings harmony is a commonly accepted public ordering on the set of alternatives. Its main interpretation is of a status ranking. Society restricts an agent's ability to replace the alternative he has. He can only move “down” to a “less prestigious” one, but not “up”. The main equilibrium notion is a status equilibrium which is a public ordering and a feasible profile of choices such that no agent strictly prefers any weakly lower-status alternative than the one he is assigned to. As in a market, deviations are purely self-serving and contemplated without regard to feasibility. We also study a variant, the initial status equilibrium, which operates on a model of an economy that is extended to include an initial profile. In the initial profile, each agent is assigned an alternative which he can always choose and which together with the public ordering determines his choice set. In an initial status equilibrium no agent strictly prefers any weakly lower-status alternative than the one he is assigned to initially. The equilibrium concepts are discussed in abstract, ``welfare'' theorems are shown, and they are applied to a variety of examples.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Initial parameter"

1

Haitz, Magnus, Martin Richter, and Ingmar Kallfass. "Robustness across Initial Estimates of Optimization Algorithms for Power Semiconductor Model Parameter Extraction." In 2024 IEEE 11th Workshop on Wide Bandgap Power Devices & Applications (WiPDA). IEEE, 2024. https://doi.org/10.1109/wipda62103.2024.10773067.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Nabeshima, Kunihiko, and Yoichi Mukai. "A Fundamental Study on Initial Assessment of Damage based on Physical Parameter Identification using SISO-ARX Model." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.0491.

Full text
Abstract:
&lt;p&gt;In this paper, a new physical parameter identification method in the time domain utilizing the Single- Input-Single-Output Auto Regressive eXogenous (SISO-ARX) model has been developed for an initial assessment of damage, and its fundamental characteristics are discussed. The theoretical validity of the proposed method is demonstrated through numerical examples for the linear SDOF/MDOF shear building model. Furthermore, we have confirmed that the presence/degree of plasticization is roughly detected story-by-story, and introducing a forgetting factor improves the detection sensitivity to the plastic response. The stiffness/damping coefficient tends to decrease/increase significantly near the time section where the plastic response is prominent and occurs frequently. In addition, both parameters recover to the elastic properties when the plastic response is zero.&lt;/p&gt;
APA, Harvard, Vancouver, ISO, and other styles
3

Guanti, Robert J., and Harvey P. Hack. "Determination of the Best Hydrodynamic Parameter for Modelling Flow on Cathodically Polarized Surfaces." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87267.

Full text
Abstract:
Abstract Short and long term velocity experiments were performed utilizing a rotating cylinder electrode. This was to determine the best way to model in the laboratory the flow conditions in service on a cathodically polarized surface or on anodically polarized zinc. This was studied by measuring the cathodic current required to protect HY-80 steel, nickel-aluminum-bronze and commercially pure titanium in flowing seawater. Potentiodynamic scans on a one inch diameter cylindrical specimen were run at rotation speeds of 50, 100, 200, 800 and 2000 rpm. The limiting current portion of the resulting polarization curves indicated that all three materials illustrated rotation speed dependent behavior. This behavior was consistent with a mechanism whereby the reaction kinetics are governed by oxygen diffusion through a fluid boundary layer. The currents measured for HY-80 were approximately an order of magnitude lower than those consistent with boundary layer diffusion-, due to the formation of a barrier layer of calcareous deposits or fouling. Increased rotation speeds, which result in increased shear stresses resulted In currents more consistent with the diffusion model, indicating that higher velocities result in stripping away surface deposits or change the morphology of the barrier film. The effect of velocity on the anodic current output for zinc sacrificial anodes was also evaluated to determine the best way to model flow over a sacrificial anode. Some velocity effects were observed, but could not be related to a specific reaction control mechanism. Long term potentiostatic tests were run to determine the effect of corrosion products and/or biological films on flow modelling of cathodic current demand. Rotation speeds of 40, 160, 800, 1600 and 2000 rpm were studied. The initial currents observed for bronze and steel correlated well with those values predicted for boundary layer diffusion. Shortly after polarizing these materials, the cathodic current decreased more than an order of magnitude, probably due to the formation of a film, such as a calcareous deposit. Titanium illustrated low currents initially, possibly due to the presence of a surface film. After a brief period of cathodic protection the current increased, indicating that the initial film was reduced. Upon reaching steady state the currents were still lower than for boundary layer diffusion, indicating the presence of another film.
APA, Harvard, Vancouver, ISO, and other styles
4

Deal, Forest. "Improved algorithms for initial condition parameter estimation." In 1985 24th IEEE Conference on Decision and Control. IEEE, 1985. http://dx.doi.org/10.1109/cdc.1985.268915.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Utku, C., D. M. Le Vine, S. Abraham, and J. Piepmeier. "Aquarius third stokes parameter measurements: Initial results." In 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad). IEEE, 2012. http://dx.doi.org/10.1109/microrad.2012.6185229.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Dub, M. "Parameter Identification - The random initial estimation issue." In 2011 14th International Conference on Mechatronics. IEEE, 2011. http://dx.doi.org/10.1109/mechatron.2011.5961086.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Binh, Vo Phuong, and Shih-Hsuan Yang. "Initial quantization parameter determination for H.264/SVC." In 2013 International Conference on Computing, Management and Telecommunications (ComManTel). IEEE, 2013. http://dx.doi.org/10.1109/commantel.2013.6482395.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Liu, Xin, Xiaoqiang Guo, Haiying Wang, and Jianyi Shi. "Spatial complexity based optimal initial quantization parameter determination." In 2015 Visual Communications and Image Processing (VCIP). IEEE, 2015. http://dx.doi.org/10.1109/vcip.2015.7457913.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Yiting, Tan, Jing Wuxing, and Gao Changsheng. "Stochastic Trajectory Planning Considering Parameter and Initial State Uncertainties." In 2021 China Automation Congress (CAC). IEEE, 2021. http://dx.doi.org/10.1109/cac53003.2021.9727333.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bonilla, Julian, Moritz Diehl, Bart De Moor, and Jan Van Impe. "A nonlinear least squares estimation procedure without initial parameter guesses." In 2008 47th IEEE Conference on Decision and Control. IEEE, 2008. http://dx.doi.org/10.1109/cdc.2008.4739175.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Initial parameter"

1

Lambraskos, Samuel G., LuLu Huang, and A. Shabaev. Initial Parameter Estimation for Inverse Thermal Analysis of Ti-6Al-4V Deep Penetration Welds. Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada602585.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hogenes, Annemiek, Christiaan Overduin, Cornelis Slump, et al. The Influence of Irreversible Electroporation Parameters on the Size of the Ablation Zone and Thermal Effects: a Systematic Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.3.0161.

Full text
Abstract:
Review question / Objective: The aim of this study was to review the effect of irreversible electroporation (IRE) parameter settings on the size of the ablation zone and occurrence of thermal effects. Information sources: A search was performed in PubMed (also including MEDLINE), Web of Science, Embase, Institute of Electrical and Electronics Engineers (IEEE) Xplore Digital Library and American Society of Mechanical Engineers (ASME) Digital Collection. Of all conference abstracts of which no full text article was present in the title and abstract search, a web-based search (Google Scholar, ResearchGate, author and co-author name(s) in Embase) was done to investigate whether a full text article was available. A manual search of the reference lists of relevant (included) articles was performed to find articles which were not found by the initial search. The corresponding author was approached by e-mail (in case the contact details were available) when the full text of a relevant abstract (e.g. conference abstract) could not be found to verify whether the results were published as full text. The study was excluded when the full text could not be found or provided.
APA, Harvard, Vancouver, ISO, and other styles
3

Fent, Thomas, Stefan Wrzaczek, Gustav Feichtinger, and Andreas Novak. Fertility decline and age-structure in China and India. Verlag der Österreichischen Akademie der Wissenschaften, 2024. http://dx.doi.org/10.1553/0x003f0d14.

Full text
Abstract:
China and India, two Asian countries that experienced a rapid decline in fertility since the middle of the twentieth century, are the focus of this paper. Although there is no doubt that lower fertility levels have many positive effects on the economy, development and sustainability, little is known about the optimal transition from high to medium or even low levels of fertility. Firstly, implementing policies that have the potential to reduce fertility is costly. Secondly, additional costs arise from adapting the infrastructure to a population that fluctuates quickly not only in terms of size but also with respect to the age structure. We apply an intertemporal optimisation model that takes the costs and benefits of fertility decline into account. The optimal time path depends on the cost structure, the planning horizon and the initial conditions. In the case of a long planning horizon and high initial fertility, it may even be optimal to reduce fertility temporarily below replacement level in order to slow down population growth at an early stage. A key finding of our formal investigation is that, under the same plausible parameter settings, the optimal paths for China and India differ substantially. Moreover, our analysis shows that India, where the fertility decline emerged as a consequence of societal and economic developments, followed a path closer to the optimal fertility transition than China, where the fertility decline was state-imposed. The mathematical approach deployed for this analysis provides insights into the optimal long-term development of fertility and allows for policy conclusions to be drawn for other countries that are still in the fertility transition process.
APA, Harvard, Vancouver, ISO, and other styles
4

Shin, Boonam, Nitin Tiwari, Peter J. Becker, and Antonio Bobet. Improved Light Weight Deflectometer Test (LWD) and Analysis. Purdue University, 2025. https://doi.org/10.5703/1288284317813.

Full text
Abstract:
This study focused on improving light weight deflectometer (LWD) testing protocols and understanding material and equipment variability. The Indiana Department of Transportation (INDOT) adopted the LWD test for its efficiency and effectiveness in measuring soil stiffness, a crucial parameter for pavement structural layers. However, challenges remain for implementing LWD testing, particularly in small construction areas. There are also challenges with establishing standardized performance-related criteria for various subgrade treatments. To address these obstacles, this research aimed to develop maximum allowable deflections for compaction quality assurance without relying on site-specific test sections. A large-scale laboratory testing facility was established at the INDOT research center and equipped with advanced sensing systems and a sandbox for controlled testing environments. Finite element (FE) models simulate material behavior under LWD testing conditions by using the viscoelastic plastic model to predict realistic deflection basins for different materials. Initial findings suggest that Dynatest LWD equipment provides more reliable results compared to Zorn LWD equipment, based on FE simulations. This study underscored the need for standardized calculation protocols and aimed to refine LWD testing procedures, enhancing the durability and reliability of pavement structures across various construction scenarios.
APA, Harvard, Vancouver, ISO, and other styles
5

Morse, Daniel E. Ocean Environmental and Surface Parameters Controlling Initial Events in Macrofouler Recruitment. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada237565.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hajj, Ramez, and Yujia Lu. Assessment of the Impact of Unacceptable Hot-Mix Asphalt Test Parameters. Illinois Center for Transportation, 2024. http://dx.doi.org/10.36501/0197-9191/24-012.

Full text
Abstract:
According to the current standard specifications and special provisions within the Illinois Department of Transportation, four quality assurance (QA) parameters are used to assess acceptability to remain in place for hot-mix asphalt (HMA) construction projects. However, when these parameters fall outside acceptable limits, it is not clear what impact this has on the pavement service life. This report, therefore, conducted a thorough literature review of studies on QA parameters and their effects on pavement service life and studied the standard specifications of each state to determine what their current practice is in terms of percent within limits (PWL) specifications. The conclusions of this task indicated that most states use some combination of gradation, density, air voids, asphalt binder content, and volumetric asphalt film-related parameters to assess the performance of contractors. Furthermore, the research team conducted an initial review of 10 recent IDOT projects and examined pavement condition indices for three others to determine what impact, locally, unacceptable materials have on initial pavement performance. Low density showed a consistently substantial relationship to premature rutting and increased International Roughness Index. For other parameters, the findings were mixed based on data available, as some projects did show initial performance effects of unacceptable sublots while others did not show any relationship to initial performance. Finally, the research team presented recommendations for future studies considering that this research did not evaluate performance of outside acceptable limits cases over the entire life span of HMA construction projects.
APA, Harvard, Vancouver, ISO, and other styles
7

Kuropiatnyk, D. I. Actuality of the problem of parametric identification of a mathematical model. [б. в.], 2018. http://dx.doi.org/10.31812/123456789/2885.

Full text
Abstract:
The purpose of the article is to study the possibilities of increasing the efficiency of a mathematical model by identifying the parameters of an object. A key factor for parametrization can be called the consideration of properties of the values of the model at a specific time point, which allows a deeper analysis of data dependencies and correlation between them. However, such a technique does not always work, because in advance it is impossible to predict that the parameters can be substantially optimized. In addition, it is necessary to take into account the fact that minimization reduces the values of parameters without taking into account their real physical properties. The correctness of the final values will be based on dynamically selected parameters, which allows you to modify the terms of use of the system in real time. In the development process, the values of experimentally obtained data with the model are compared, which allows you to understand the accuracy of minimization. When choosing the most relevant parameters, various minimization functions are used, which provides an opportunity to cover a wide range of theoretical initial situations. Verification of the correctness of the decision is carried out with the help of a quality function, which can identify the accuracy and correctness of the optimized parameters. It is possible to choose different types of functional quality, depending on the characteristics of the initial data. The presence of such tools during parametrization allows for varied analysis of the model, testing it on various algorithms, data volumes and conditions of guaranteed convergence of functional methods.
APA, Harvard, Vancouver, ISO, and other styles
8

Matus, Sean, and Daniel Gambill. Automation of gridded HEC-HMS model development using Python : initial condition testing and calibration applications. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/46126.

Full text
Abstract:
The US Army Corps of Engineers’s (USACE) Hydrologic Engineering Center-Hydrologic Modeling System (HEC-HMS) rainfall-runoff model is widely used within the research community to develop both event-based and continuous rainfall-runoff models. The soil moisture accounting (SMA) algorithm is commonly used for long-term simulations. Depending on the final model setup, 12 to 18 parameters are needed to characterize the modeled watershed’s canopy, surface, soil, and routing processes, all of which are potential calibration parameters. HEC-HMS includes optimization tools to facilitate model calibration, but only initial conditions (ICs) can be calibrated when using the gridded SMA algorithm. Calibrating a continuous SMA HEC-HMS model is an iterative process that can require hundreds of simulations, a time intensive process requiring automation. HEC-HMS is written in Java and is predominantly run through a graphical user interface (GUI). As such, conducting a long-term gridded SMA calibration is infeasible using the GUI. USACE Construction Engineering Research Laboratory (CERL) has written a workflow that utilizes the existing Jython application programming interface (API) to batch run HEC-HMS simulations with Python. The workflow allows for gridded SMA HEC-HMS model sensitivity and calibration analyses to be conducted in a timely manner.
APA, Harvard, Vancouver, ISO, and other styles
9

Magdalinos, Tassos, and Katerina Petrova. OLS Limit Theory for Drifting Sequences of Parameters on the Explosive Side of Unity. Federal Reserve Bank of New York, 2024. http://dx.doi.org/10.59576/sr.1113.

Full text
Abstract:
A limit theory is developed for the least squares estimator for mildly and purely explosive autoregressions under drifting sequences of parameters with autoregressive roots ρn satisfying ρn → ρ ∈ (—∞, —1] ∪ [1, ∞) and n (|ρn| —1) → ∞. Drifting sequences of innovations and initial conditions are also considered. A standard specification of a short memory linear process for the autoregressive innovations is extended to a triangular array formulation both for the deterministic weights and for the primitive innovations of the linear process, which are allowed to be heteroskedastic L1-mixingales. The paper provides conditions that guarantee the validity of Cauchy limit distribution for the OLS estimator and standard Gaussian limit distribution for the t-statistic under this extended explosive and mildly explosive framework.
APA, Harvard, Vancouver, ISO, and other styles
10

Baca Campodónico, Jorge F., and Gerardo Reyes-Tagle. Econometric Estimation of the Capital Stock and the Production Function: The Case of the Bahamas, Barbados, Jamaica, and Suriname. Inter-American Development Bank, 2023. http://dx.doi.org/10.18235/0004749.

Full text
Abstract:
Most studies of total factor productivity (TFP) and long-term production functions use capital stock time series obtained from ad hoc estimates of the rate of depreciation and the initial capital stock. This paper introduces a methodology that allows the simultaneous econometric estimation of the capital stock, the production function parameters, the rate of depreciation, and the initial capital stock. The proposed methodology, using the underlying cost function to the production function, allows for the incorporation of information about the relative prices of the factors of production and the possibility of having variable depreciation rates over time. The proposed methodology is applied to the case of the Bahamas, Barbados, Jamaica, and Suriname for the period 1989-2019 using national accounts data published by the statistical services of these countries.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Initial parameter' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography