Abstract The determination of natural products stereochemistry read more remains a formidable task.Residual dipolar couplings (RDCs) induced by anisotropic media are a powerful tool for determination of the stereochemistry of organic molecule in solution.This review will provide a short introduction on RDCs-based methodology for the structural eluc
Transmission error (TE) and backlash are important parameters used to evaluate the transmission accuracy of cycloid-pin drives.Existing calculation methods are mostly based on two-dimensional tooth profile models, and these methods ignore the influence of some abnormal meshing phenomena caused by profile modifications (PMs), manufacturing errors (M
The basic properties read more of the fly ash, recycled brick powder and recycled concrete powder, compared the recycled brick powder and recycled concrete powder instead of fly ash in concrete preparation, influence on the working performance and mechanical properties; and through the modifier to improve the concrete slump loss is too large, analy
Depression is a common mental health disorder that affects the majority of the population.The exact cause of depression is not fully understood, but various factors such as genetics, environmental stressors, and psychological factors are believed to play a role.Due to the complexity of the etiopathogenesis of depression, the selection of read more
The objective of this article is to show the internationalization strategies of the artisan industry in Galapa (Colombia).Through a quantitative-descriptive, non-experimental, cross-sectional field study, a questionnaire was applied in a number handicraft micro-enterprises of Galapa City.The questionnaire included 6 questions about company conditio