scholarly journals Engineering single-polymer micelle shape using nonuniform spontaneous surface curvature

2018 ◽  
Vol 97 (3) ◽  
Author(s):  
Brian Moths ◽  
T. A. Witten
Keyword(s):  
Surface Curvature ◽  
Polymer Micelle

The enthalpy of vaporization and the liquid surface curvature

1991 ◽  
Vol 56 (7) ◽  
pp. 1400-1403
Author(s):  
Václav Svoboda
Keyword(s):  
Liquid Surface ◽  
Convex Surface ◽  
Enthalpy Of Vaporization ◽  
Surface Curvature

The effect of liquid surface curvature on enthalpy of vaporization is investigated. The limits are found at which this effect begins to manifest itself both for the concave and convex surface.

Lithium Storage in Bowl-like Carbon: The Effect of Surface Curvature and Space Geometry on Li Metal Deposition

2021 ◽  
pp. 2145-2152
Author(s):  
Weibin Ye ◽  
Lina Wang ◽  
Yichen Yin ◽  
Xinhang Fan ◽  
Yong Cheng ◽  
...  
Keyword(s):  
Surface Curvature ◽  
Metal Deposition ◽  
Lithium Storage ◽  
Space Geometry ◽  
Effect Of Surface

Steric scattering of rod-like swimmers in low Reynolds number environments

Soft Matter ◽  
2021 ◽  
Author(s):  
Kentaro Hoeger ◽  
Tristan Ursell
Keyword(s):  
Reynolds Number ◽  
Cell Size ◽  
Low Reynolds Number ◽  
Surface Curvature ◽  
Natural Environments ◽  
Solid Objects ◽  
Low Reynolds

While navigating natural environments, interactions with cell-size solid objects alter paths of swimming microbes. We characterized such ‘scattering’ from synthetic objects of controlled surface curvature. A sterics-only model agrees well with the data.

Detecting stony areas based on ground surface curvature distribution

2015 ◽  
Author(s):  
Paavo Nevalainen ◽  
Maarit Middleton ◽  
Ilkka Kaate ◽  
Tapio Pahikkala ◽  
Raimo Sutinen ◽  
...  
Keyword(s):  
Ground Surface ◽  
Surface Curvature ◽  
Curvature Distribution

scholarly journals The principle of minimum entropy production and snow structure

2004 ◽  
Vol 50 (170) ◽  
pp. 342-352 ◽  
Author(s):  
Perry Bartelt ◽  
Othmar Buser
Keyword(s):  
Mass Transfer ◽  
Temperature Gradient ◽  
Entropy Production ◽  
Surface Curvature ◽  
The State ◽  
Temperature Gradients ◽  
Curvature Radius ◽  
Minimum Entropy ◽  
Snow Layer ◽  
Minimum Entropy Production

AbstractAn essential problem in snow science is to predict the changing form of ice grains within a snow layer. Present theories are based on the idea that form changes are driven by mass diffusion induced by temperature gradients within the snow cover. This leads to the well-established theory of isothermal- and temperature-gradient metamorphism. Although diffusion theory treats mass transfer, it does not treat the influence of this mass transfer on the form — the curvature radius of the grains and bonds — directly. Empirical relations, based on observations, are additionally required to predict flat or rounded surfaces. In the following, we postulate that metamorphism, the change of ice surface curvature and size, is a process of thermodynamic optimization in which entropy production is minimized. That is, there exists an optimal surface curvature of the ice grains for a given thermodynamic state at which entropy production is stationary. This state is defined by differences in ice and air temperature and vapor pressure across the interfacial boundary layer. The optimal form corresponds to the state of least wasted work, the state of minimum entropy production. We show that temperature gradients produce a thermal non-equilibrium between the ice and air such that, depending on the temperature, flat surfaces are required to mimimize entropy production. When the temperatures of the ice and air are equal, larger curvature radii are found at low temperatures than at high temperatures. Thus, what is known as isothermal metamorphism corresponds to minimum entropy production at equilibrium temperatures, and so-called temperature-gradient metamorphism corresponds to minimum entropy production at none-quilibrium temperatures. The theory is in good agreement with general observations of crystal form development in dry seasonal alpine snow.

Effect of initial surface curvature on frictionally excited thermoelastic phenomena

Wear ◽  
1974 ◽  
Vol 27 (2) ◽  
pp. 195-207 ◽  
Author(s):  
R.A. Burton ◽  
V. Nerlikar
Keyword(s):  
Surface Curvature ◽  
Initial Surface
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