Results 271 to 280 of about 30,595 (324)

Multigram‐Scale Organic Synthesis by Resonant Acoustic Mixing: Application to the Sustainable Preparation of Active Pharmaceutical Ingredients

open access: yesChemSusChem, EarlyView.
Knoevenagel condensation, Biginelli three‐component reaction and benzylic rearrangement are investigated at multi‐gram scale, by resonance acoustic mixing (RAM), to prepare biologically active molecules, also including the marketed Phenytoin (antiepileptic drug). Chem21 and DOZN 3.0 tools were used to assess the greenness of the RAM‐assisted syntheses,
Christos M. Chatzigiannis   +3 more
wiley   +1 more source

A droplet splitter: Simple, controlled and efficient droplet splitting using superhydrophobic pyramid structures

open access: yesDroplet, EarlyView.
The pyramidal sharp edges act as “fluidic blades” to split droplets through the synergistic interaction of edge‐induced capillary forces and inertial forces generated at the liquid film periphery during spreading dynamics. Controlled splitting of droplets can be achieved by utilizing different superhydrophobic pyramidal structures.
Qibo Liu   +5 more
wiley   +1 more source

An analytical solution of direction evolution of crack growth during progressive failure in brittle rocks

open access: yesDeep Underground Science and Engineering, EarlyView.
A novel analytical method is proposed to evaluate the shear stress effect on the progressive compressive failure and microcrack growth direction in brittle rocks. The shear stress effect on the wing crack growth direction during the progressive compressive failure is determined. The initial crack angle effect on the y‐direction peak stress and the wing
Xiaozhao Li   +6 more
wiley   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

The influence of urban canyon design on noise reduction for people living next to roads [PDF]

open access: yes, 2015
Botteldooren, Dick   +2 more
core  

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