Sentaurus TCAD for modeling of the elements of the matrix photodetectors on organic compounds

2015 ◽  
Author(s):  
Oxana N. Kashirskaya
Keyword(s):  
Organic Compounds ◽  
The Matrix

scholarly journals Starch tray with addition of different components foamed by baking process

2013 ◽  
Vol 31 (No. 3) ◽  
pp. 230-235 ◽  
Author(s):  
H. Smítková ◽  
M. Marek ◽  
J. Dobiáš
Keyword(s):  
Polyvinyl Alcohol ◽  
Organic Compounds ◽  
Smooth Surface ◽  
Calcium Stearate ◽  
Waste Paper ◽  
Paper Pulp ◽  
Baking Process ◽  
The Matrix ◽  
Foam Properties ◽  
Inorganic And Organic

The possibilities of improving starch/water batter foam properties by additions of inorganic and organic compounds, waste sawdust and waste paper pulp were investigated. The most suitable ratio between starch and water was set to 2:3. The best results were obtained when calcium stearate was added to the starch/water tray because it filled the matrix of the tray and improved the surface. The addition of calcium stearate and a low amount of waste paper pulp and/or waste sawdust also brought good results. Higher amounts of waste sawdust and calcium stearate did not produce the compact and smooth surface of starch trays. The addition of polyvinyl alcohol improved these parameters.  

Examinations of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds: Part IX

1988 ◽  
Vol 42 (4) ◽  
pp. 666-670 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Organic Compounds ◽  
Infrared Spectra ◽  
Nearest Neighbor ◽  
Matrix Isolation ◽  
Fourier Transform Infrared ◽  
Absorption Bands ◽  
The Matrix ◽  
Chain Lengths

A series of β-diketones and alkenes have been examined by matrix isolation Fourier transform infrared spectroscopy. The matrix experiment readily detects the presence of extensive keto-enol tautomerization in selected β-diketones. Certain absorption bands in the IR could be used to estimate the extent of the tautomerization. The data gathered on the alkenes found their absorption bands to occur in the same regions (±5 cm−1) as those found for VP and SS phases. Minimal nearest-neighbor (aggregation) interactions were found. These results are in contrast to those found for aldehydes, ketones, and acids of similar chain lengths.

Recycling of Industrial Wastewater by its Immobilization in Geopolymer Cement

2010 ◽  
Vol 69 ◽  
pp. 180-185
Author(s):  
Dorith Tavor ◽  
Tal Meyohas ◽  
Shlomi Ronen ◽  
Adi Wolfson
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Organic Compounds ◽  
Industrial Wastewater ◽  
Inorganic Compounds ◽  
Geopolymer Matrix ◽  
The Matrix ◽  
Pharmaceutical Industries ◽  
Polymerization Mixture ◽  
Geopolymer Cement

In this work, wastewater from Teva Pharmaceutical Industries Ltd., which comprises several organic and inorganic compounds, was solidified in a geopolymer matrix. The addition of wastewater to the polymerization mixture of fly ash based geopolymers yielded a high compressive strength of 50-75 MPa that is similar to that of wastewater-free geopolymer. The leaching of organic compounds from the matrix was examined and it was found to be negligible, about 0.2%wt, and comparable to the amount that leached from a geopolymer matrix made without wastewater. The results indicate that the immersion temperature and the time of immersion have negligible influences on carbon leaching.

Examinations of the Matrix Isolation Infrared Spectra of Organic Compounds: PART XIII

1989 ◽  
Vol 43 (2) ◽  
pp. 305-310 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Ir Spectra ◽  
Organic Compounds ◽  
Matrix Isolation ◽  
Intramolecular Hydrogen Bonding ◽  
Double Bond Position ◽  
Absorption Bands ◽  
The Matrix ◽  
Carbon Substitution ◽  
Ft Ir ◽  
Intramolecular Hydrogen

Matrix isolation Fourier transform infrared (MI/FT-IR) spectra have been collected on a series of internal alkenes, a series of hydroxy-substituted ketones, and a series of hydroxy-substituted esters. Assignments of double bond position and geometry are possible in the alkenes, due to the resolution of absorption bands of very similar energies. The location of the absorption bands for the alkenes was found to be very similar to the values found for the vapor-phase and condensed-phase spectra. Multiple carbonyl absorptions have been found in the MI/FT-IR spectra of the hydroxy ketones and hydroxy esters. Trends in the multiplicity of the carbonyl absorption patterns for these compounds as a function of ring size and hydroxyl carbon substitution have been used to document the presence of extensive intramolecular hydrogen bonding. The argon matrix as a phase for the study of stable organic compounds has, again, with this information, been shown to be unique.

scholarly journals A CYTOCHEMICAL APPROACH TO THE LIPID COMPOSITION OF MITOCHONDRIAL MATRIX GRANULES IN BROWN ADIPOSE TISSUE AND LIVER

1974 ◽  
Vol 22 (11) ◽  
pp. 1028-1033 ◽  
Author(s):  
PER-OLA WENDEL ◽  
TUDOR BARNARD
Keyword(s):  
Adipose Tissue ◽  
Organic Solvent ◽  
Brown Adipose Tissue ◽  
Organic Compounds ◽  
Lipid Composition ◽  
Neutral Lipids ◽  
Mitochondrial Matrix ◽  
Brown Adipose ◽  
The Matrix ◽  
Chloroform Methanol

Matrix inclusions in mitochondria of prenatal brown fat and liver are rich in lipids, and it has been suggested that these should mainly be phospholipids. This proposition has been investigated. Pellets of glutaraldehyde-fixed mitochondria were extracted with excess hexane or chloroform-methanol (2:1 v/v); in controls buffer was substituted for organic solvent. Following extraction the pellets were postfixed in OsO4. Matrix granules in buffer-treated mitochondria (controls) were strongly osmiophilic and were bleached by H2O2 treatment. In hexane-extracted mitochondria the inclusions were less intensely osmiophilic, but they showed the same response to H2O2 as did the controls. Extraction with chloroform-methanol resulted in empty spaces in place of the matrix granules and H2O2 treatment did not produce significant changes. The fact that the inclusions were not extracted by hexane suggests that they are not composed mainly of neutral lipids. The solubility and osmiophilia of the material in the matrix granules are compatible with the reactions expected of phospholipids, but the evidence does not exclude the possibility that other classes of organic compounds might also be involved.

Examinations of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds. Part V

1987 ◽  
Vol 41 (8) ◽  
pp. 1431-1438 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Carbonyl Group ◽  
Organic Compounds ◽  
Methyl Acetate ◽  
Phenyl Acetate ◽  
Band Broadening ◽  
The Matrix ◽  
Carbonyl Absorption Band ◽  
Ft Ir ◽  
Extreme Care ◽  
Range Of Values

MI/FT-IR spectral data have been collected on selected types of organic compounds containing the carbonyl group. By the varying of the ratio of the matrix gas to the compound ( M/E) as well as the matrix gas (Ar vs. Xe), the observed splitting of the carbonyl absorption band was attributed to both conformer isolation and aggregation in the matrix. The splitting of the carbonyl group of methyl acetate was attributed to aggregation, while conformer isolation was found to exist for phenyl acetate and trimethylacetaldehyde. The magnitude of the splittings found in this study, 3–30 cm−1, is within the range of values found for other organic compounds. Band splitting was shown by (1) compounds that are linear and contain ≤5 carbons or (2) compounds that are branched and contain <5 carbons. Compounds having >5 carbons displayed only band broadening. Varying M/E ratios has been found to be a reasonable method by which to distinguish between conformer and aggregation. These data confirm the influence of sample phase and indicate that extreme care must be taken in the use of MI/FT-IR spectra as physical probes for structure determination.

Examination of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds, Part I

1987 ◽  
Vol 41 (5) ◽  
pp. 886-889 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Solid Solution ◽  
Fourier Transform ◽  
Carboxylic Acid ◽  
Organic Compounds ◽  
Vapor Phase ◽  
Matrix Isolation ◽  
Hydroxyl Groups ◽  
Carbonyl Groups ◽  
The Matrix ◽  
Acid Esters

Data are presented that describe the IR spectra of organic compounds obtained under matrix isolation conditions. Among the types of compounds examined are amides, lactones, lactams, esters, acids, alcohols, and phenols. Trends, as a function of structure, established in vapor-phase IR are shown to exist under MI conditions. The frequency (cm−1) of the stretching absorption for hydroxyl groups and carbonyl groups associated with the types of compounds listed above under MI conditions is shown to be intermediate between the vapor-phase position (highest energy) and the solid-solution position (lowest energy). In some cases the three phases differ by as much as 300 cm−1 (OH group in carboxylic acids) and by as little as 15 cm−1 (carbonyl group in carboxylic acid esters).

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