Results 11 to 20 of about 1,839,289 (262)

Initialization of Physical Parameter Estimates

IFAC Proceedings Volumes, 2003
Grey box models of dynamical systems contain designated parameters with physical interpretation to be estimated from input-output data. This often gives distinct advantages over black-box models in terms of fewer parameters to estimate and hence better statistical accuracy. The basic theory for how this can be done is well established.
Parrilo, Pablo, Ljung, Lennart
openaire   +4 more sources

Camera parameter initialization for 3D kinematic systems [PDF]

ISPA 2005. Proceedings of the 4th International Symposium on Image and Signal Processing and Analysis, 2005., 2005
3D scene information can be extracted from images acquired by cameras. Before doing the actual reconstruction, camera calibration has to be done. Reconstruction accuracy is highly dictated by the calibration. Two typical demands, which are not easily simultaneously satisfied, are: calibration has to be done in a fast and convenient manner and yet ...
Pribanić, Tomislav, Sturm, Peter, Cifrek, Mario   +2 more
openaire   +2 more sources

Viscoelastic parameters as discriminators of breast masses: Initial human study results. [PDF]

PLoS ONE, 2018
Shear wave elastography is emerging as a clinically valuable diagnostic tool to differentiate between benign and malignant breast masses. Elastography techniques assume that soft tissue can be modelled as a purely elastic medium. However, this assumption
Viksit Kumar, Max Denis, Adriana Gregory, Mahdi Bayat, Mohammad Mehrmohammadi, Robert Fazzio, Mostafa Fatemi, Azra Alizad   +7 more
doaj   +1 more source

Influence of flow parameters on single shock-wave-focusing detonation and initial verification

AIP Advances, 2021
As an advanced method for initiating detonation, shock-wave focusing (SWF) can do so directly without a separate igniter, and the distance of focusing initiation is much smaller than that of the deflagration-to-detonation transition, thereby greatly ...
Hesong Zhang, Xin Chen, Shida Xu, Dongliang Bian   +3 more
doaj   +1 more source

Initiation Parameters of Granulated Synthetic Polymers [PDF]

Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2021
Abstract Polymeric materials, which are currently very often used in various industries, are often transported and stored in the form of granules before processing. This method has several advantages, but in most studies the test samples are modified to different shapes and dimensions.
Peter Rantuch, Jozef Martinka, Tomáš Štefko, Igor Wachter   +3 more
openaire   +1 more source

Biochemical Parameters of Initiation and Regulation of Sperm Motility [PDF]

Archives of Andrology, 1990
Studies of in vitro models demonstrate that a forward motility protein (FMP) is required for the initiation of forward motility in the immature epididymal spermatozoa. FMP is a heat-stable glycoprotein derived from epididymal plasma. During the epididymal maturation of spermatozoa in vivo, there is a marked increase of intrasperm pH and level of cyclic
G C, Majumder, C S, Dey, S, Haldar, M, Barua   +3 more
openaire   +2 more sources

Estimation of Kostiakov İnfiltration Parameters Using Initial Soil Moisture

Journal of Agricultural Sciences, 2006
The Kostiakov equation was extensively used to estimate furrovv Infiltration but it is unadjusted for different field conditions. The Kostiakov infiltration parameters (k and a) were therefore developed as a function of initial soil moisture content and ...
Abolfazl Nasserı1
doaj   +1 more source

Optimizing the Scale of a Wavelet-Based Method for the Detection of Gait Events from a Waist-Mounted Accelerometer under Different Walking Speeds

Sensors, 2019
The accurate and reliable extraction of specific gait events from a single inertial sensor at waist level has been shown to be challenging. Among several techniques, a wavelet-based method for initial contact (IC) and final contact (FC) estimation was ...
Carlotta Caramia, Cristiano De Marchis, Maurizio Schmid   +2 more
doaj   +1 more source

On the optimization of initial conditions for a model parameter estimation [PDF]

Programs and Algorithms of Numerical Mathematics 18, 2017
The design of an experiment, e.g., the setting of initial conditions, strongly influences the accuracy of the process of determining model parameters from data. The key concept relies on the analysis of the sensitivity of the measured output with respect to the model parameters.
Matonoha, C. (Ctirad), Papáček, Š., Kindermann, S.   +2 more
openaire   +2 more sources

An Initial Sizing Method of Large-Scale Electric Cargo Unmanned Aeiral Vehicles for Conceptual Design

Engineering Proceedings
In order to accurately evaluate the preliminary parameters of the large-scale electric cargo UAV for conceptual design, combined with its own characteristics and payload requirements, a total weight assessment procedure of a traditional fixed-wing ...
Chang-Zhou Wang, Fu-Hu Liu
doaj   +1 more source