The treatise De Beryllo makes a point to use the method itself through the form of the work, and the way of putting it into practice. It is not only the method in itself which imports, but also the way used by the author to uses it, putting ...
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An expert system was developed to assist the design engineer in the initial and crucial task of choosing the baseline conditions. This expert system is based solely on technical criterion and integrates the knowledge of several experts in the field. A management tool for this multiple-source ...
Mechanisms of the photosensitizedcis–transphotoisomerization of 3-penten-2-one which do not imply only classical triplet–triplet energy transfer are proposed; they are based upon measurements of the variations of initial quantum yields of isomerization with the initial donor and acceptor concentrations,...
The reaction of glyoxilic acid with ethyl carbamate followed by an acid-catalyzed condensation with benzene leads to N-carbethoxyphenylglycine in good yields. The resolution of this racemic (conglomerate) carbamate is performed by preferential crystallization of both enantiomers, the useless one being...
As a consequence of the seed dormancy and longevity in soils, it is mainly in spring time that volunteer plants control has to be considered in the two crops following sunflower. Sunflower harvest at the right stage of maturity with the adequate setting of the combine harvester are key ...