Highly efficient Michael addition reactions of malonates to nitroalkenes catalyzed by novel chiral thioureas derived from optically pure BINOL and amino acids a
The experimental study of air-entrained concrete specimens subjected to different cycles of freeze-thaw was completed.The dynamic modulus of elasticity,weight l
A new non-hydrostatic numerical model with the three-dimensional Navier-Stokes equations on structured grids was constructed and discussed. The algorithm is bas
The impeller of turbo machinery is a typical nonlinear multi-oscillator system. The vibration of each module is coupling, including fluid-solid coupling of the
The fracture investigations of the planar lattices made of ductile cell walls are cur-rently limited to bending-dominated hexagonal honeycomb. In this paper, th
Based on three-dimensional (3D) acceleration sensing, an intelligent particle spy capable of detecting, transferring, and storing data, is proposed under the na
Due to large topography slopes in natural rivers, pollutant concentration embodies a property of three-dimensional distribution when wastewater is discharged fr
The title compound, 2,6-bis(benzimidazo(1,2-c)quinazolin-6-yl)pyridine tetrahy-drate, was synthesized by simple condensation of 2-(2-sminophenyl) benzimidazole
We compared four esterifiable enzymes. The lipase Novozym 435 possessed the highest activity for the conjugated linoleic acid esterification during the synthesi