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The specific term "micro armour" originated and was trademarked by GHQ founder Gregory Dean Scott in 1967 [1] for a line of metal 1:285 scale armour miniatures. GHQ also published Micro Armour: The Game - WWII in 2001 [2] some 34 years after founding the company. Early on, a competing company called C in C offered 1:285 scale micro armour ...
The Taylor microscale falls in between the large-scale eddies and the small-scale eddies, which can be seen by calculating the ratios between and the Kolmogorov microscale . Given the length scale of the larger eddies l ∝ k 3 / 2 ϵ {\displaystyle l\propto {\frac {k^{3/2}}{\epsilon }}} , and the turbulence Reynolds number Re l {\displaystyle ...
where ε is the average rate of dissipation of turbulence kinetic energy per unit mass, and; ν is the kinematic viscosity of the fluid.; Typical values of the Kolmogorov length scale, for atmospheric motion in which the large eddies have length scales on the order of kilometers, range from 0.1 to 10 millimeters; for smaller flows such as in laboratory systems, η may be much smaller.
Microscale chemistry (often referred to as small-scale chemistry, in German: Chemie im Mikromaßstab) is an analytical method and also a teaching method widely used at school and at university levels, working with small quantities of chemical substances. While much of traditional chemistry teaching centers on multi-gramme preparations ...
Dimensionless numbers (or characteristic numbers) have an important role in analyzing the behavior of fluids and their flow as well as in other transport phenomena. [1] They include the Reynolds and the Mach numbers, which describe as ratios the relative magnitude of fluid and physical system characteristics, such as density, viscosity, speed of sound, and flow speed.
Bulk sorting is applied to samples with a large number of droplets (> 2000 s −1) that can be sorted based on intrinsic properties of the droplets (such as viscosity, density, etc.) without checking each droplet. [95] Precise sorting, on the other hand, aims to separate droplets that meet certain criteria that is checked on each droplet. [95]
The microscopic scale (from Ancient Greek μικρός (mikrós) 'small' and σκοπέω (skopéō) 'to look (at); examine, inspect') is the scale of objects and events smaller than those that can easily be seen by the naked eye, requiring a lens or microscope to see them clearly. [1]
Microscale is defined at the micrometre level spanning 0.1–100μm. Microscale may also refer to: Microscale meteorology; Microscale chemistry; Kolmogorov microscales; Micro-scale heat exchangers; Micro-scale fluidics; Micro-scale reactor; Microscale and macroscale models; Micro-scale MOSFETs, used in certain commercial products