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Model Prediction

More precisely, the rate of ozone formation depends closely on the chemical nature of the hydrocarbons present in the atmosphere. A reactivity scale has been proposed by Lowi and Carter (1990) and is largely utilized today in ozone prediction models. Thus the values indicated in Table 5.26 express the potential ozone formation as O3 formed per gram of organic material initially present. The most reactive compounds are light olefins, cycloparaffins, substituted aromatic hydrocarbons notably the xylenes, formaldehyde and acetaldehyde. Inversely, normal or substituted paraffins. [Pg.261]

Predictive Model Markup Language (PMML) is far more than just another format of a data container flat file [7]. As is clear from the name, it is an XML-based markup language delivering all the power of XML. Readers are recommended to consult Section 2.4.5 and the website www.xml.org for more details on XML and its applications in chemistry. [Pg.211]

The method of building predictive models in QSPR/QSAR can also be applied to the modeling of materials without a unique, clearly defined structure. Instead of the connection table, physicochemical data as well as spectra reflecting the compound s structure can be used as molecular descriptors for model building,... [Pg.402]

Partial Least Squares Regression, also called Projection to Latent Structures, can be applied to estabfish a predictive model, even if the features are highly correlated. [Pg.449]

Obviously, to model these effects simultaneously becomes a very complex task. Hence, most calculation methods treat the effects which are not directly related to the molecular structure as constant. As an important consequence, prediction models are valid only for the system under investigation. A model for the prediction of the acidity constant pfQ in aqueous solutions cannot be applied to the prediction of pKj values in DMSO solutions. Nevertheless, relationships between different systems might also be quantified. Here, Kamlet s concept of solvatochro-mism, which allows the prediction of solvent-dependent properties with respect to both solute and solvent [1], comes to mind. [Pg.488]

Finally, a model has to be tested using an independent data set with compounds yet completely unknown to the model the test set. The complete process of building a prediction model is depicted in Figure 10.1-1 as a flow chart. [Pg.491]

Recently, several QSPR solubility prediction models based on a fairly large and diverse data set were generated. Huuskonen developed the models using MLRA and back-propagation neural networks (BPG) on a data set of 1297 diverse compoimds [22]. The compounds were described by 24 atom-type E-state indices and six other topological indices. For the 413 compoimds in the test set, MLRA gave = 0.88 and s = 0.71 and neural network provided... [Pg.497]

Successful predictive models in toxicology exist - however, they are of a rather local nature. Effects considered in toxicology can be caused by different mechanisms. Efforts to get away from a class perspective to one that is more consistent regarding modes of toxic action are still a subject of ongoing research. [Pg.512]

Heatshield thickness and weight requirements are determined using a thermal prediction model based on measured thermophysical properties. The models typically include transient heat conduction, surface ablation, and charring in a heatshield having multiple sublayers such as bond, insulation, and substmcture. These models can then be employed for any specific heating environment to determine material thickness requirements and to identify the lightest heatshield materials. [Pg.2]

Two other broad areas of food preservation have been studied with the objective of developing predictive models. En2yme inactivation by heat has been subjected to mathematical modeling in a manner similar to microbial inactivation. Chemical deterioration mechanisms have been studied to allow the prediction of shelf life, particularly the shelf life of foods susceptible to nonen2ymatic browning and Hpid oxidation. [Pg.457]

K. C. Lee, J. L. Hansen, and D. C. Macauley, "Predictive Model of the Time-Temperature Requirements for Thermal Destmction of Dilute Organic Vapors," 72nd nnual 4PCA Meeting, Cincinnati, Ohio, June 1979. [Pg.60]

J. Siler, "Reverse Osmosis Membranes-Concentration Polarization and Surface Fouling Predictive Models and Experimental Verifications," dissertation. University of Kentucky, Lexington, Ky., 1987. [Pg.157]

Kamlet-Taft Linear Solvation Energy Relationships. Most recent works on LSERs are based on a powerfiil predictive model, known as the Kamlet-Taft model (257), which has provided a framework for numerous studies into specific molecular thermodynamic properties of solvent—solute systems. This model is based on an equation having three conceptually expHcit terms (258). [Pg.254]

Rotating machinery usually performs efficiently if it works under design point conditions. However, off-design conditions require a predictive model of the machine s performance. In a FCC power train system, mass flow deviation is quite common for adjusting production capacity to meet the requirements of petrochemical product markets. [Pg.464]

Mathematical predictive modeling based on predictive equations. Analogous chemical structures. Employers would rely on service life values from other chemicals having analogous chemical structure to the contaminant under evaluation for breakthrough. [Pg.144]

Because many practical flames are turbulent (spark ignited engine flames, nil field flares), an understanding of the interaction between the complex fluid dynamics of turbulence and the combustion processes is necessary to develop predictive computer models. Once these predictive models are developed, they arc repeatedly compared with measurements of species, temperatures, and flow in actual flames for iterative refinement. If the model is deficient, it is changed and again compared with experiment. The process is repeated until a satisfactory predictive model is obtained. [Pg.274]

Gentry, G. G. and W. M. Small, RODbaffle Exchanger Thermal-Hydraulic Predictive Models Over Expanded Baffle-Spacing and Reynolds No. Ranges, National Heat Transfer Gonference, Boulder, GO., Aug. 5-8, (1985). [Pg.283]

Comeau, B. D., and Marsden, C. J., Unexpected Field Corrosion Leads To New Monitoring with Revised Predictive Model , Oil and Gas J., 45-48, 1 June (1987)... [Pg.1151]

The experimental data followed the predicted model and the line represents the above stated function. The presented data indicate that the range of concentrations in this study exhibited an observed substrate inhibition. The experimental data from the current studies were observed to be fit with the predicted model based on Andrew s modified equations. [Pg.62]

CsPuF6 was prepared and verified to be isostructural with corresponding compounds of uranium and neptunium. Its decomposition was studied in an inert gas atmosphere and in vacuum. Its spectrum has been measured in the region 400-2000 nm. The energy level structure of Pu5+ in the trigonally distorted octahedral CsPuF6 site was computed from a predictive model and compared with the observed spectrum. [Pg.202]

Mechanistic Approaches. Adequate and appropriate river-quality assessment must provide predictive information on the possible consequences of water and land development. This requires an understanding of the relevant cause and effect relationships and suitable data to develop predictive models for basin management. This understanding may be achieved through qualitative, semi-quantitative or quantitative approaches. When quantitative or semi-quantitative methods are not available the qualitative approach must be applied. Qualitative assessments involve knowledge of how basin activities may affect river quality. This requires the use of various descriptive methods. An example of this kind of assessment is laboratory evaluation of the extent to which increases in plant nutrients, temperature or flow may lead to accelerated eutrophication with consequent reduction of water quality. [Pg.246]

As shown in this chapter, by focusing on the modulation of enzyme selectivity by medium engineering, quite simple modifications of the solvent composition can really have significant effects on the performances of the biocatalysts. The main drawback remains the lack of reliable predictive models. Despite the significant research efforts (particularly in the last decade), it is likely that a reasonable foresight of the enantioselective outcome of an enzymatic transformation will continue to be based solely on a careful analysis of the increasingly numerous literature reports. [Pg.17]

A combination of thermodynamic analysis and experimental data on the deposition rates, efficiencies and deposit morphologies as a function of CVD variables may be used to develop models for the deposition processes. In the case of CVD of borides such a predictive model has been created so far only for a CVD system in which TiBj is obtained by reduction of TiCl4 and BCI3 with... [Pg.275]

Establishing predictive models of water quahty and early warning systems. [Pg.156]

The small NBS program in chemical engineering should receive substantially greater funding to fulfill critical needs for evaluated data and predictive models. The committee supports NBS plans to focus on data needs in emerging technology areas such as biotechnology and advanced materials. [Pg.196]

The National Bureau of Standards has a unique role to play in supporting the field of chemical engineering. It should be the focal point for providing evaluated data and predictive models for data to facilitate the design, the scale-up, and even the selection of chemical processes for specific applications. [Pg.209]

Despite the plethora of data in the scientific literature on thermophysical quantities of substances and mixtures, many important data gaps exist. Predictive capabilities have been developed for problems such as vapor-liquid equihbrium properties, gas-phase and—less accmately—liquid-phase diffusivities, aud solubilities of uouelectrolytes. Yet there are many areas where improved predictive models would be of great value. Au accrrrate and rehable predictive model can obviate the need for costly, extensive experimental measurements of properties that are critical in chemical manufactming processes. [Pg.209]

Tsaparlis, G. (1998) Dimensional analysis and predictive models in problem so mg. International... [Pg.135]

Johnstone, A. H., El-Banna, H. (1986). Capacities, demands and processes - A predictive model for science education in chemistry. Education in Chemistry, 23, 80-84. [Pg.190]

There are, however, at least four aspects of 5 0 variation in the biosphere which can affect this correlation and, as such, could account for the variation in the data. The two predictive models differ in the emphasis placed on each of these aspects. First, animal 8 0 values are not expected to vaiy predictably with rainfall and surface water in cases where animals obtain the majority of their body water from plants and where plant values vary independently of surface water values. For example, within Australia there is little continental variation in rainfall 5 0 values and little surface water for... [Pg.121]

M.J. 1996 A predictive model for animal 8"0 explaining old studies and designing new... [Pg.138]

The search for a predictive model of plant responses to stress... [Pg.31]


See other pages where Model Prediction is mentioned: [Pg.497]    [Pg.367]    [Pg.150]    [Pg.506]    [Pg.427]    [Pg.433]    [Pg.170]    [Pg.2016]    [Pg.2184]    [Pg.406]    [Pg.88]    [Pg.1305]    [Pg.196]    [Pg.136]    [Pg.209]    [Pg.120]    [Pg.124]   
See also in sourсe #XX -- [ Pg.27 , Pg.96 ]

See also in sourсe #XX -- [ Pg.258 , Pg.273 ]

See also in sourсe #XX -- [ Pg.183 ]

See also in sourсe #XX -- [ Pg.424 ]




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A Model to Predict the Tensile Strength of Tablets from Individual Components

Activity prediction models

Activity prediction models comparison

Activity prediction models three-dimensional QSAR

Aerosols computational model prediction

An Equilibrium-Based Model for Predicting Potential Ammonia Volatilization from Soil

Animal Models of Disease for Future Toxicity Predictions

Animal Models their Predictive Value

Application of Predictive QSAR Models to Database Mining

Aqueous solubility, predictive model comparisons

Cancer risk assessment predictive modeling

Carbonization predictive model

Case study prediction of permeate flux decay during ultrafiltration performed in pulsating conditions by a hybrid neural model

Case study prediction of permeate flux decay during ultrafiltration performed in pulsating conditions by a neural model

Chemical extraction selective, model predictions

Chemical reaction processes predictive model

Classification models, predictive applications

Comparison of Model Predictions with Experiment

Computational Models for Prediction of Intestinal Permeability

Computational Models for the Prediction of Aerosol Dispersion

Computational model prediction

Computational modeling structure prediction

Computational neural network predictive modeling

Computer model for prediction

Concentration fields, model predictions

Confidence intervals, predictive model

Confidence intervals, predictive model comparisons

Conformations structure prediction models

Controller design model predictive

Cornell model predictions

Correlation coefficient, predictive model

Correlation coefficient, predictive model comparisons

Damping Tube model predictions

Databases predictive models

Design predictive models

Developing models for predicting

Different predictive models

Drug predictive models

Durability life prediction models

Estimating Error Bars on Model Predictions

Experimental Verification of Model Prediction

Explosive Limits Model Predictions

Exposure assessments predictive modeling parameters

Extensional Tube model predictions

Failure prediction model, degradation

Finite-element based life prediction models

Fluid predictive models

French predictive models

From Orbital Models to Accurate Predictions

General kinetic model and prediction of critical effects

HETP Prediction—Mass Transfer Models

Healy-James model predictions

High Effectiveness of an HCA Cell Model in Predictive Toxicology

Homology modeling sequence-structure-function prediction

Homology modeling structure prediction

In Silico Methods for Prediction of Phototoxicity - (Q)SAR Models

Knowledge-based prediction computational models

Knowledge-based prediction protein modeling

Life Prediction Model

Lifetime prediction kinetic model

Liquid residence-time predictions model

Local composition model activity coefficient prediction

Machine Learning Models for Predictive Studies

Mathematical model conversion predicted

Mathematical modeling predicting efficacy

Mathematical modeling predicting toxicity

Mathematical models predictions

Mental Models and Predictive Behaviour

Mesoscale models prediction combination

Model Predicting Energy Requirement and Product Size Distribution

Model Predictions for Void Growth

Model Predictive Control of Batch Processes (SHMPC)

Model Predictive Heuristic Control

Model acceptance criteria for the time-domain technique predictability

Model acceptance for transfer-function-based technique predictability

Model data, predictions

Model flow pattern prediction method

Model predictability

Model predictions and experimental data

Model predictions and measured

Model predictive control

Model predictive control (MPC

Model predictive control advantages

Model predictive control algorithms

Model predictive control constraints

Model predictive control controller

Model predictive control description

Model predictive control disadvantages

Model predictive control dynamic programming

Model predictive control enhancements

Model predictive control history

Model predictive control integrators

Model predictive control moving horizon

Model predictive control nonlinearity

Model predictive control prediction horizon

Model predictive control standard quadratic programming

Model predictive control step-response

Model predictive control tuning parameters

Model predictive performance

Model-Predictive Control of Continuous Processes

Model-free predictions

Modeling Predictions

Modeling Predictions

Modeling and Life Prediction

Modeling and Prediction of Solid Solubility by GE Models

Modeling and prediction

Modeling approaches final failure prediction

Modeling forward-predictive

Modeling life prediction model

Modeling models, setting-specific Predictive

Modeling of Chain Dynamics and Predictions for NMR Measurands

Modeling predictive simulations

Modelling predictive

Modelling predictive

Models for Predicting Battery Behavior

Models for Prediction of Absorption

Models for Prediction of Incipient Boiling Heat Flux and Wall Superheat

Models for Prediction of Volume

Models for performance prediction

Models for predicting functions

Models predictivity range

Models, predictions based

Molecular conformation, prediction through models

Molecular modeling ADME prediction

Molecular modeling protein structure prediction

Multiple linear regression model prediction

Multivariate calibration models prediction

NEWS-model-predictions

Nonlinear model predictive control

Nonlinear model predictive controller

Operator exposure models, predicted

Oscillation Model predictive equations

Oscillation Model predicts

Other prediction models of asphalt stiffness

Oxidation computer model prediction

Partial least squares models prediction

Pharmacokinetics predictive models

Phosphorus predictive modeling

Photobioreactor predictive models

Polarization model-predicted

Polymer systems, predictive aging models

Predictability of Process Models

Predicted results of the composite model and comparison with experiments

Predicting Fiber Orientation — The Folgar-Tucker Model

Predicting Reactor Behavior with the Macrofluid Model

Predicting the Striation Thickness in a Couette Flow System - Shear Thinning Model

Prediction and Extrapolation in the Simple Linear Model

Prediction error model

Prediction from Scale Model

Prediction models polymer systems

Prediction of Plasma and Tissue Concentration-Time Profiles by Using the PBPK Modeling Approach

Prediction of diffusion coefficients in gases, liquids, amorphous solids and plastic materials using an uniform model

Prediction of model uncertainty

Prediction sinusoidal models techniques

Prediction techniques Modeller tool

Prediction techniques comparative modeling methods

Prediction techniques computational models

Prediction techniques free energy modeling

Prediction techniques potential energy models

Prediction techniques protein modeling

Prediction techniques solvation energy models

Predictions from Model Ecosystem (Microcosm and Mesocosm) Data

Predictions from the Pariser-Parr-Pople-Peierls model

Predictions of Physical Properties with the Two Models

Predictions, cellular metabolic modeling

Predictive Accuracies of Models

Predictive Chemical Kinetic Models

Predictive CoMFA models

Predictive Defluidization Models and Operability Maps

Predictive Model Markup Language

Predictive Modeling Approaches for Assessing Human Lead Exposure

Predictive Modeling and Rational Catalyst Design

Predictive Modeling in Heterogeneous Catalysis

Predictive Modeling of the Continuous Catalyst Regeneration (CCR) Reforming Process

Predictive Modelling of Aluminium Fluoride Surfaces

Predictive Models from Pharmacological Data

Predictive QSAR Models as Virtual Screening Tools

Predictive QSAR models

Predictive QSAR models model validation

Predictive QSAR models modeling workflow

Predictive activity coefficient models

Predictive exposure models

Predictive in-silico models

Predictive kinetics chemical kinetic models

Predictive material models

Predictive model fuel evaporation

Predictive modeling

Predictive modeling reforming process

Predictive modeling technique

Predictive modeling/control

Predictive modelling calculations

Predictive models

Predictive models

Predictive models applicability

Predictive models environmental variables

Predictive models error analysis

Predictive models molecular descriptors

Predictive models performance evaluation

Predictive models random forest model example

Predictive models, drug-likeness

Predictive of a model

Predictive value model

Predictive value, CoMFA models

Quantitative structure-activity relationships predictive models

Reactivity prediction models

Resampling Methods for Prediction Error Assessment and Model Selection

Response predicted by the model

Reynolds number model predictions comparison

Selection of the Predictive Model Class

Shear Tube model predictions

Simple Predictive Models

Skill 1.3c-Predict molecular geometries using Lewis dot structures and hybridized atomic orbitals, e.g., valence shell electron pair repulsion model (VSEPR)

Solubility predictions, model

Solvation energy models structure prediction

Spectrum prediction empirical modeling methods

Stem Cell-Based Predictive Models

Stochastic model predictive control

Structure prediction techniques computational models

Structure prediction techniques free energy modeling

Structure prediction techniques potential energy models

The Predictive Model

The Predictive Model A Multistage Stochastic Approach

Thermodynamic Models for the Prediction of Petroleum-Fluid Phase Behaviour

Thermoset resin processing predictive models

Time series modeling prediction error method

Tools for Predictions and Modeling

Transition prediction model

Tutorial Developing Models for Solubility Prediction with 18 Topological Descriptors

Two-phase model predictions and experimental observations

UK Predictive Operator Exposure Model

Variable selection and modeling method based on the prediction

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