SU-E-T-226: Correction of a Standard Model-Based Dose Calculator Using Measurement Data

2015 ◽  
Vol 42 (6Part15) ◽  
pp. 3384-3384
Author(s):  
M Chen ◽  
S Jiang ◽  
W Lu
Keyword(s):  
Standard Model ◽  
Measurement Data ◽  
Model Based

scholarly journals A Real-Time Dynamic Fuel Cell System Simulation for Model-Based Diagnostics and Control: Validation on Real Driving Data

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3148 ◽  
Author(s):  
Daniel Ritzberger ◽  
Christoph Hametner ◽  
Stefan Jakubek
Keyword(s):  
Fuel Cell ◽  
Real Time ◽  
Combustion Engine ◽  
System Simulation ◽  
Measurement Data ◽  
Fuel Cell Vehicle ◽  
Feedback Controls ◽  
Model Based ◽  
And Control ◽  
Stack Model

Fuel cell systems are regarded as a promising candidate in replacing the internal combustion engine as a renewable and emission free alternative in automotive applications. However, the operation of a fuel cell stack fulfilling transient power-demands poses significant challenges. Efficiency is to be maximized while adhering to critical constraints, avoiding adverse operational conditions (fuel starvation, membrane flooding or drying, etc.) and mitigating degradation as to increase the life-time of the stack. Owing to this complexity, advanced model-based diagnostic and control methods are increasingly investigated. In this work, a real time stack model is presented and its experimental parameterization is discussed. Furthermore, the stack model is integrated in a system simulation, where the compressor dynamics, the feedback controls for the hydrogen injection and back-pressure valve actuation, and the purging strategy are considered. The resulting system simulation, driven by the set-point values of the operating strategy is evaluated and validated on experimental data obtained from a fuel cell vehicle during on-road operation. It will be shown how the internal states of the fuel cell simulation evolve during the transient operation of the fuel cell vehicle. The measurement data, for which this analysis is conducted, stem from a fuel cell research and demonstrator vehicle, developed by a consortium of several academic and industrial partners under the lead of AVL List GmbH.

scholarly journals Research on Image Acquisition Method Model Based on Implicit Association Test

2020 ◽  
Vol 179 ◽  
pp. 02006
Author(s):  
Zhuen Guo ◽  
Li Lin
Keyword(s):  
Cognitive Processing ◽  
Implicit Association Test ◽  
Measurement Data ◽  
Association Test ◽  
Implicit Association ◽  
Perceptual Evaluation ◽  
Model Based ◽  
Implicit Measurement ◽  
Product Image ◽  
Extraction Model

In the process of the traditional quantitative method is easily interfered with by subjective and external environment, and cannot reflect the real emotion of users. The implicit measurement method can better reflect the cognitive of users and has good reliability in perceptual evaluation. In this paper, the implicit cognitive processing process in users’ perceptual evaluation of products is quantitatively analyzed. The correlation between product image attribute values and implicit measurement data is obtained. Thus, an image extraction model based on implicit measurement data is obtained. The implicit association test is introduced into the image extraction process, and the relationship between the implicit association test data of users and the data of product image attribute values is analyzed. Taking UAV as the analysis prototype, the image extraction model is obtained. After verification and analysis, the image extraction results are consistent with the image attribute values.

scholarly journals A Computationally-Efficient Probabilistic Approach to Model-Based Damage Diagnosis

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
James E. Warner ◽  
Geoffrey F. Bomarito ◽  
Jacob D. Hochhalter ◽  
William P. Leser ◽  
Patrick E. Leser ◽  
...  
Keyword(s):  
Probability Distributions ◽  
Probabilistic Approach ◽  
Measurement Data ◽  
Image Correlation ◽  
Sensor Data ◽  
Fe Model ◽  
Computationally Efficient ◽  
Damage Diagnosis ◽  
Full Field ◽  
Model Based

This work presents a computationally-efficient, probabilistic approach to model-based damage diagnosis. Given measurement data, probability distributions of unknown damage parameters are estimated using Bayesian inference and Markov chain Monte Carlo (MCMC) sampling. Substantial computational speedup is obtained by replacing a three-dimensional finite element (FE) model with an efficient surrogate model. While the formulation is general for arbitrary component geometry, damage type, and sensor data, it is applied to the problem of strain-based crack characterization and experimentally validated using full-field strain data from digital image correlation (DIC). Access to full-field DIC data facilitates the study of the effectiveness of strain-based diagnosis as the distance between the location of damage and strain measurements is varied. The ability of the framework to accurately estimate the crack parameters and effectively capture the uncertainty due to measurement proximity and experimental error is demonstrated. Furthermore, surrogate modeling is shown to enable diagnoses on the order of seconds and minutes rather than several days required with the FE model.

An Efficient Attribute-Based Signature with Application to Secure Attribute-Based Messaging System

2013 ◽  
pp. 159-177 ◽  
Author(s):  
Piyi Yang ◽  
Tanveer A Zia
Keyword(s):  
Standard Model ◽  
Secure Communications ◽  
Group Model ◽  
Challenging Problem ◽  
Anonymous Authentication ◽  
Generic Group ◽  
Model Based ◽  
The Standard Model ◽  
Single String ◽  
Generic Group Model

A set of attributes instead of a single string to represent the signer’s identity is a challenging problem under standard cryptographic assumption in the standard model. Therefore, designing a fully secure (adaptive-predicate unforgeable and perfectly private) Attribute-Based Signature (ABS) that allows a signer to choose a set of attributes is vital. Existing schemes are either too complicated or have only been proved in the generic group model. In this chapter, the authors present an efficient fully secure ABS scheme in the standard model based on q-parallel BDHE assumption, which is more practical than the generic group model used in the previous schemes. The proposed scheme is highly expressive since it allows any signer to specify claim-predicates in terms of any predicate consisting of AND, OR, and Threshold gates over the attributes in the system. ABS has found many important applications in secure communications, such as anonymous authentication systems and attribute-based messaging systems.

A Standard Model Mechanism for Inflation

2020 ◽  
Author(s):  
Robert Hayes
Keyword(s):  
Standard Model ◽  
Uncertainty Principle ◽  
Pauli Exclusion Principle ◽  
Exclusion Principle ◽  
Planck Length ◽  
Model Based ◽  
The Standard Model ◽  
Quantum Transitions ◽  
Planck Time

This brief work tenets that inflationary genesis can be obtained within the standard model based on only a few general assumptions. These are that the origin began at a singularity of Planck length and that all quantum transitions take place within Planck time units. From these, the subsequent effects from the Pauli Exclusion Principle (PEP) and the uncertainty principle can then give rise to an inflationary origin.

scholarly journals SYSTEMATIC STUDY OF THESU(3)c⊗SU(4)L⊗U(1)XGAUGE SYMMETRY

2007 ◽  
Vol 22 (06) ◽  
pp. 435-447 ◽  
Author(s):  
WILLIAM A. PONCE ◽  
LUIS A. SÁNCHEZ
Keyword(s):  
Standard Model ◽  
Gauge Group ◽  
Gauge Boson ◽  
Systematic Study ◽  
Infinite Number ◽  
Model Based ◽  
First Case ◽  
The Standard Model ◽  
Family Models

We carry out a systematic study of possible extensions of the standard model based on the gauge group SU (3)c⊗ SU (4)L⊗ U (1)X. We consider models with particles having exotic electric charges and also models which do not contain exotic electric charges in the gauge boson sector or in the fermion sector. For the first case an infinite number of models can, in principle, be constructed, while the restriction to non-exotic electric charges only allows for eight different anomaly-free models. Four of them are three-family models in the sense that anomalies cancel by an interplay between the three families, and another two are one-family models where anomalies cancel family by family as in the standard model. The remaining two are two-family models.

ORIENTIFOLD STRING VACUA AND STRINGS AT THE LHC

2011 ◽  
Vol 26 (27n28) ◽  
pp. 4687-4701
Author(s):  
DIETER LÜST
Keyword(s):  
Large Hadron Collider ◽  
Standard Model ◽  
Hadron Collider ◽  
Mass Scale ◽  
Gauge Bosons ◽  
Model Based ◽  
Open Strings ◽  
Fundamental String ◽  
Weakly Coupled ◽  
The Standard Model

We consider extensions of the Standard Model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes. Assuming that the fundamental string mass scale is in the TeV range and the theory is weakly coupled, we discuss possible signals of string physics at the Large Hadron Collider (LHC).

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