Molecular weight, discussed inChapter 18, is the single most important property in determining polymerviscosity. The relationship in a narrowmolecular weight distributionis given by Eqn(20.1): (20.1)η=k×MW3.5 where η=Viscosity k=A constant ...
In addition, semiconducting properties are influenced not only by chemical structure but also by the morphology and microstructure of the material, and hence processing conditions are important11,12,13. This can lead to different laboratories reporting quite different properties for what are nominally ...
but they do not yet beat biorecognition elements. Molecularly imprinted materials offer an opportunity to design suites of materials/recognition elements for the same target analyte with unique binding characteristics and subsequent responses. Recently, several research groups have successfully coupled the ...
Quantum chemistry is regarded as one of the first disciplines that will benefit from quantum computing. Predicting the properties of atoms and molecules will become one of the most important applications of quantum computers10,11,12. Specifically, quantum computing promises to revolutionize quantum simul...
(Da) are now analyzed routinely in most mass spectrometers which can be interfaced to an ESI source. Perhaps as important as the ability of ESI to generate high mass molecular ions in the gas phase without fragmentation is its ability to create multiply charged ions. These ions have mass-to...
Analysis of partial putative cis-acting elements in the 50 flanking region of GhAPm Fig. 1 The genomic and mRNA structure of GhAPm. The genomic sequence containing seven introns (intron 1, 129 bp; intron 2, 305 bp; intron 3, 88 bp; intron 4, 241 bp; intron 5, 120 bp; intron 6,...
an indication of performing radiotherapy at least once in the whole course of their disease. But most of the patients can’t receive the treatment due to a shortage of important resources including equipment as well as personnel for handling the instrumentation or the expertise persons who can do...
(Li et al.2018a). For example, rice AC influences a series of quality related parameters, including hardness, viscosity, and transparency. Proteins are considered as the most important elements of rice NQ. Their content and quality determine rice NQ. Protein quality is mainly evaluated by ...
To this end, we propose a chemical element-oriented knowledge graph (ElementKG), which integrates basic knowledge of elements and functional groups in an organized and standardized manner. Then we exploit the contained fundamental chemical knowledge as a prior in both pre-training and fine-tuning,...
However, molecular hydrogen occurs in Nature in relatively small amounts and has to be produced from various sources, in which atomic hydrogen –it is the most abundant element – is combined with light elements such as carbon, nitrogen and oxygen. Therefore, the relative greenness of the ...