Results 121 to 130 of about 6,436,560 (338)
Angewandte Chemie International Edition, EarlyView.Polyhydroxybutyrates are key sustainable polyesters, but controlling the stereoregularity is crucial for exhibiting the most promising thermal and mechanical properties. Highly active rare‐earth metal salan/salalen complexes yield isotactic (Pm up to 0.96 at 0 °C) or syndioenriched (Pr up to 0.91) PHB, depending on the steric demand of the ligand and ...
Stefanie Hörl +4 more
wiley +1 more source
Dust-wind interactions can intensify aerosol pollution over eastern China
Nature Communications, 2017 Anthropogenic aerosol and calm conditions give rise to winter haze episodes in eastern China. Yanget al. show that these weak winds also decrease natural dust emissions, reducing the land–ocean temperature difference and associated winds, enhancing air ...
Yang Yang +7 more
doaj +1 more source
COLD SPRAY DEPOSITION EFFICIENCY CONTROL OF PROTECTIVE AND RESTORATIVE COATINGS ON MAGNESIUM ALLOYS
Авіаційно-космічна техніка та технологія, 2018 The crucial task of developing the technology of low pressure cold gas–dynamic spraying and its wide application in the aviation, automotive and other industries is the possibility of obtaining coatings with given properties and deposition efficiency as ...
Александр Владимирович Шоринов +1 more
doaj +1 more source
Blowup in Stagnation-point Form Solutions of the Inviscid 2d Boussinesq Equations [PDF]
arXiv, 2014 The 2d Boussinesq equations model large scale atmospheric and oceanic flows. Whether its solutions develop a singularity in finite-time remains a classical open problem in mathematical fluid dynamics. In this work, blowup from smooth nontrivial initial velocities in stagnation-point form solutions of this system is established.
arxiv
Turbulence and surface heat transfer near the stagnation point of a circular cylinder in turbulent flow [PDF]
A turbulent boundary layer flow analysis of the momentum and thermal flow fields near the forward stagnation point due to a circular cylinder in turbulent cross flow is presented.
Wang, C. R.
core +1 more source
Biotechnology and Bioengineering, EarlyView.ABSTRACT Long‐term stable operation of bioelectrochemical systems (BES) presupposes the avoidance of mass transfer limitations of the electroactive biofilm. Excessive pH‐gradients from bulk to electrode interface or substrate limitations of the electroactive biofilm are known to diminish the electrical performance of BES.
Andreas Netsch +3 more
wiley +1 more source
Results in Physics, 2016 This communication explores the effects of homogeneous-heterogeneous reactions in thermally stratified mixed convection flow of an Oldroyd-B fluid. Flow situation is addressed when the diffusion coefficients of the reactant and auto catalyst are equal ...
T. Hayat, Zakir Hussain, A. Alsaedi
doaj
Scientific Reports, 2017 Solar thermal energy conversion has attracted substantial renewed interest due to its applications in industrial heating, air conditioning, and electricity generation.
Nathan H. Thomas +3 more
doaj +1 more source
Antibacterial hydrogel: The sniper of chronic wounds
BMEMat, EarlyView.The treatment of chronic wounds has always been an important challenge in the medical field. We focus on hydrogels not only because they provide a moist healing environment but also because compared with traditional dressings, they can effectively prevent and treat infections, reduce wound pain and scar formation.
Shengtai Bian +6 more
wiley +1 more source
Alexandria Engineering Journal, 2018 This article examines Joule heating and viscous dissipation effects in axisymmetric stagnation point flow of Casson fluid with temperature dependent thermal conductivity.
M. Nawaz, Rahila Naz, M. Awais
doaj