The formation of insoluble products was suppressed by the slow dropwise
addition of a dilute solution of one monomer to a solution of the other.
After 5 min of continuous stirring, titanium tetra-isopropoxide (Sigma-Aldrich, 98%) was added dropwise
As the names imply, a dipper style control is used by fully immersing the urinalysis dipstick into the control fluid to fully saturate the reagent pads, whereas a dropper-style control is used by dispensing the control fluid dropwise
onto the reagent pads.
Subsequently, 1 mL of PEG was added with 50 [micro]L of DMSO for 1 min, dropwise
with slow stirring, in a beaker with water at 37 [degrees]C, after which time the cells were allowed to remain another minute in the beaker.
98 g, 10 mmol) dissolved in 30 ml absolute EtOH were added dropwise
at 78 AdegC with continuous stirring for 24 h.
0 g, 200 mmol) in dry THF (20 mL) was added dropwise
to a stirred and ice-cooled solution of vinylmagnesium bromide (2) in THF (1 M, 220 mL, 220 mmol) at 5-20 [degrees]C.
To this, glycidol was added slowly dropwise
at 90[degrees]C, and the reaction mass was maintained at 80-85[degrees]C for another 120 min.
Contributed by engineers from Asia, the US, the UK, and Australia, chapters discuss self-cleaning and superhydrophobic surfaces, treatments and constructing a digital model of biological shark skin/shark, approaches to manufacturing low viscous resistance drag with biomimetic textures, characteristic analysis of drag-reducing surfaces with biological morphology, and biomimetic surfaces for enhanced dropwise
condensation heat transfer.
A more efficient condensation process is dropwise
condensation on hydrophobic (water-repellent) surfaces, where the vapor is condensed into individual droplets which can be easily shed away by gravity.
Meanwhile, scientists at Massachusetts Institute of Technology recently reported that ultrathin, scalable, chemical-vapor-deposited (CVD) graphene coatings have higher chemical resistance than typical functional hydrophobic coatings and promote dropwise
rather than filmwise condensation on copper condenser tubes used in heat transfer systems.
20 mL of 2% acetic acid aqueous solution was added dropwise
to FA-PEG/DMSO solution containing EDC and NHS and stirred for 20 h at room temperature in the dark.
When the temperature dropped to 70[degrees]C, 20 ml of room temperature distilled water were added dropwise