Antiviral activity of N-phosphorylated amides, thioamides, and their salts
The N-(O,O-dimethylphosphoryl)benzamide (I) was obtained according to [4]; N-(O-methylS-methylphosphoryl)acetamide (acephate) (II) was obtained according to [6], and N-(O,O-diisopropylthiophosphoryl)thiobenzamide (III) (benztriamiph) was obtained according to [7]. The synthesis of N-(O,O-diisopropylthiophosphoryl)thioacetamide (IV), the sodium salt of N-(O,O-dimethylphosphoryl)benzamide (V), and the sodium salt of N-(O,O-diethylphosphoryl)thiobenzamide (VI) is described below.
Isothiocyanates of Phosphorus Acids, N-Phosphorylated Thiocarbamates and Thioureas
Current data on the synthesis, structures, the activities, and practical applications of the isothiocyanates of tricoordinate, tetracoordinate, pentacoordinate, and hexacoordinate phosphorus acids and N-phosphorylated and N-thiophosphorylated thiocarbamates, dithiocarbamates, and thioureas are examined and surveyed. The bibliography includes 223 references.
Robust solutions of inverse problems in electromagnetic non-destructive evaluation
Non-destructive testing (NDT) is the application of physical measurement technology based on energy interaction with the material and its nonconformities. The material's response is sensed by transducers and sensors which?in most cases?scan the component and document the results in inspection images. However, NDT measures a physically defined quantity or even an intrinsic property. The difference between non-destructive evaluation (NDE) and NDT is in the interpretation of the inspection data. NDE has to discuss the inspection results in terms of quality elements and characteristics which are relevant to describe the fitness of the material for use. In the case of macroscopic defects these are the kind of defect (cracklike, globular) and its size and orientation to the main stress directions; in the case of material property determination the parameters are mainly mechanical properties. Therefore, in NDE one has to solve inverse problems. The solution of inverse problems based on mathematical procedures such as integral equations is a strong developing discipline and most of the articles prepared for this special issue of the journal have the objective of discussing the latest state of the art in that field. However, practical NDE needs robust and quick solutions which are to be applied mainly online. Therefore, we present here inversion procedures based on multiple linear regression algorithms applied to inspection data. We describe the calibration procedure to fit the free parameters of the model functions and give examples of practical applications in industry.