C&EN

Natural Alkaloid Arecoline-Derived Amino Acid Derivatives: Design, Synthesis, and Evaluation of Their Antifungal Activity in an Agricultural Context

School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, ...
C&EN

Enantioselective Synthesis of Chiral β 2-Amino Phosphorus Derivatives via Nickel-Catalyzed Asymmetric Hydrogenation

Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, ...
IEEE

S. RajaKumar

Denoising,Discrete Cosine Transform,Frequency Domain Features,Gabor Filters,Immune Memory,Line Segment,Local Minimum Point,Neighboring Points,Neural Network,Optical ...
Simon Fraser University

Finite Difference Approximations of Derivatives

First-order derivatives: n additional function calls are needed. Second-order derivatives based on gradient calls, when the "grd" module is specified (Dennis and Schnabel 1983): n additional gradient ...