Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Hybridization model

Three generic types of receptor model have been identified, chemical mass balance, multivariate, and microscopical identification. Each one has certain requirements for input data to provide a specified output. An approach which combines receptor and source models, source/ receptor model hybridization, has also been proposed, but it needs further study. [Pg.89]

In the ArrayExpressB model. Hybridization is directly associated with ArrayType, assuming that it is not important whether several Hybridizations are performed on the same instance of some ArrayType or on several instances. [Pg.131]

Describe the bonding in SO2 and SO3 using the localized electron model (hybrid orbital theory). How would the molecular orbital model describe the tt bonding in these two compounds ... [Pg.947]

Intelligent control models, hybrid, 164 Intelligent transportation systems (ITS), 819, 822... [Pg.2741]

Hybrid films of ZnO nanoparticles and poly[2-methoxy - 5 - (3, 7 -dimethyloctyloxyl) -1,4-phenylene vinylene] (MDMO-PPV) have been characterized as a model hybrid bulk heterojunction photovoltaic cell [145]. [Pg.88]

Open problems in writing the basic organic chonistry textbook include the selection of concepts for the representation of the material, but also the level of the explanation of the complex phenomena such as reaction mechanisms or the electron structure. Here I propose the compromises. First compromise is related to the mode of the systematization of the contents, which can traditionally be based either on the classes of compounds, or on the classes of reactions. Here, the main chapter titles contain the reaction types, but the subtitles involve the compound classes. The electronic effects as well as the nature of the chemical bond is described by using the quasi-classical approach starting with the wave nature of the electron, and building the molecular orbitals from the linear combination of the atomic orbitals on the principle of the qualitative MO model. Hybridization is avoided because all the phenomena on this level can be simply explained by non-hybridized molecular orbitals. [Pg.187]

However, the mentioned above single models have some shortages unavoidably. To remedy the defects of single models, hybrid models are actively researched recently. One kind of hybrid models (Qi, 1999) combines part of first principle equations with ANN, in which ANN is used to determine parameters of the first principle models. Fuzzy logic approach (Qian, 1999) is used for representing imprecision and approximation of the relationship among process variables. It is successfully incorporated into conventional process simulators. Several efforts (Baffi, 1999) have been made to combine statistical analysis with non-linear regression, which are polynomial, spline function and ANN. [Pg.600]

The value of the electronic systems in a typical car is said to represent a quarter of its sales value with the figure rising to around 30% for some luxury models. Hybrid models such as Toyota s Prius, with both an internal combustion engine and electric motors, will have a relatively high electronics content. Wireless hands-free mobile phone installations enhance the electronics content which tends to rise faster in mid-range and, even compact models, than in top-of-the-range models where many of the aspirational features are already fitted as standard. [Pg.50]

Multiscale modeling Hybrid simulation Molecular-continuum simulation... [Pg.1402]

FIGURE 24.11 Common Hybridization Schemes in Compiex ions The valence bond model hybridization schemes can be deduced from the geometry of the complex ion. [Pg.1114]

Three host-guest systems were buUt and their structural and physical features were simulated. The model hybrid materials consist of PMMA/nc-SiC, PC/nc-SiC, and PVK/nc-SiC composites. For each system, the starting structure was generated using Hyper-Chem program package. The imit cell of each structure consists of one SiC cluster surrounded by one polymer chain of... [Pg.656]

The fully solvated model cannot easily be used with the dipole-correction or applied field methods discussed above. The absence of a vacuum layer in the fully solvated model makes dipole moment evaluation and field application impossible within the periodic model. Hybrid approaches, in which the dipole is measured in an unsolvated model and solvation approximated in the fully solvated model, might be considered. However, the advantage of the fully solvated model is its integration within the direct charging of the electrochemical interface. [Pg.150]


See other pages where Hybridization model is mentioned: [Pg.283]    [Pg.81]    [Pg.333]    [Pg.174]    [Pg.259]    [Pg.333]    [Pg.67]    [Pg.261]    [Pg.207]    [Pg.161]    [Pg.114]    [Pg.128]    [Pg.185]    [Pg.317]    [Pg.257]    [Pg.223]    [Pg.733]    [Pg.81]    [Pg.357]    [Pg.654]    [Pg.157]   
See also in sourсe #XX -- [ Pg.4 ]




SEARCH



Hybrid modeling

Hybrid modelling

Hybrid models

© 2024 chempedia.info