A New Method of Separation of Organic Compounds

Nature ◽  
1953 ◽  
Vol 172 (4384) ◽  
pp. 862-863
Author(s):  
R. C. VASISTH ◽  
M. S. MUTHANA
Keyword(s):  
Organic Compounds ◽  
New Method

scholarly journals A New Method to Find the Wiener Index of Hypergraphs

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Yalan Li ◽  
Bo Deng
Keyword(s):  
Organic Compounds ◽  
Chemical Properties ◽  
Wiener Index ◽  
New Method ◽  
Physical And Chemical Properties ◽  
Mathematical Chemistry ◽  
Physical And Chemical ◽  
And Chemical Properties

The Wiener index is defined as the summation of distances between all pairs of vertices in a graph or in a hypergraph. Both models—graph-theoretical and hypergraph-theoretical—are used in mathematical chemistry for quantitatively studying physical and chemical properties of classical and nonclassical organic compounds. In this paper, we consider relationships between hypertrees and trees and hypercycles and cycles with respect to their Wiener indices.

A New Method for the Synthesis of TiO2/C Composites with the Use of Titanium Organic Compounds

2019 ◽  
Vol 64 (7) ◽  
pp. 857-863 ◽  
Author(s):  
Z. A. Fattakhova ◽  
G. S. Zakharova ◽  
E. I. Andreikov ◽  
I. S. Puzyrev
Keyword(s):  
Organic Compounds ◽  
New Method

scholarly journals Insights into hydroxyl measurements and atmospheric oxidation in a California forest

2012 ◽  
Vol 12 (17) ◽  
pp. 8009-8020 ◽  
Author(s):  
J. Mao ◽  
X. Ren ◽  
L. Zhang ◽  
D. M. Van Duin ◽  
R. C. Cohen ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Traditional Method ◽  
Laser Induced Fluorescence ◽  
New Method ◽  
Biogenic Volatile Organic Compounds ◽  
Temperature Dependent ◽  
Volatile Organic ◽  
Penn State ◽  
Oxidation Chemistry ◽  
Gas Expansion

Abstract. The understanding of oxidation in forest atmospheres is being challenged by measurements of unexpectedly large amounts of hydroxyl (OH). A significant number of these OH measurements were made by laser-induced fluorescence in low-pressure detection chambers (called Fluorescence Assay with Gas Expansion (FAGE)) using the Penn State Ground-based Tropospheric Hydrogen Oxides Sensor (GTHOS). We deployed a new chemical removal method to measure OH in parallel with the traditional FAGE method in a California forest. The new method gives on average only 40–60% of the OH from the traditional method and this discrepancy is temperature dependent. Evidence indicates that the new method measures atmospheric OH while the traditional method is affected by internally generated OH, possibly from oxidation of biogenic volatile organic compounds. The improved agreement between OH measured by this new technique and modeled OH suggests that oxidation chemistry in at least one forest atmosphere is better understood than previously thought.

A new method for the determination of sulphur in organic compounds containing nitrogen.

1953 ◽  
Vol 41 (1-2) ◽  
pp. 51-57 ◽  
Author(s):  
R. Belcher ◽  
A. J. Nutten ◽  
W. I. Stephen
Keyword(s):  
Organic Compounds ◽  
New Method
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