Time is up.

Recently retired, no longer affiliated with any party. Constitutional patriot listening for God’s word

In response The Mac to his Publication

I only can hope at this piont

In response Paul Robb to his Publication

hope (third-person singular simple present hopes,

present participle hoping,

simple past and past participle hoped)

(intransitive, transitive) To want something to happen, with a sense of expectation that it might.

In response The Mac to his Publication

Who peed on the floor?

There seems to be a big ring mark left over...

In response The Mac to his Publication

The coffee ring effect occurs when a droplet of a suspension evaporates on a substrate; this process can separate suspended nanoparticles (NPs) by size as a result of geometric constraints at the contact line of the evaporating droplet.

In response The Mac to his Publication

Compared with atmospheric spray pyrolysis, low-pressure spray pyrolysis (LPSP) has a unique capability of producing nanoparticles from micron-sized droplets (Fisenko et al. 2006).

https://www.tandfonline.com/doi/full/10.1080/02786826.2010.486684

In response The Mac to his Publication

In physics, a "coffee ring" is a pattern left by a puddle of particle-laden liquid after it evaporates. The phenomenon is named for the characteristic ring-like deposit along the perimeter of a spill of coffee. It is also commonly seen after spilling red wine. The mechanism behind the formation of these and similar rings is known as the coffee ring effect or in some instances, the coffee stain effect, or simply ring stain.

In response The Mac to his Publication

Convective deposition can control particle orientation, resulting in the formation of crystalline monolayer films from nonspherical particles such as hemispherical, dimer, and dumbbell shaped particles. Orientation is afforded by the system trying to reach a state of maximum packing of the particles in the thin meniscus layer over which evaporation occurs.

In response The Mac to his Publication

They showed that tuning the volume fraction of particles in solution will control the specific location along the varying meniscus thickness at which assembly occurs. Particles will align with their long axis in- or out-of-plane depending on whether or not their longer dimension of the particle was equal to the thickness of the wetting layer at the meniscus location.

In response The Mac to his Publication

Such thickness transitions were established with spherical particles as well. It was later shown that convective assembly could control particle orientation in assembling multi-layers, resulting in long-range 3D colloidal crystals from dumbbell shaped particles. These finds were attractive for the self-assembled of colloidal crystal films for applications such as photonics. Recent advances have increased the application of coffee-ring assembly from colloidal particles to organized patterns of inorganic crystals.

In response The Mac to his Publication
In response The Mac to his Publication
In response The Mac to his Publication
In response The Mac to his Publication

Fight fire with fire

In response The Mac to his Publication

Only people mentioned by @TheMac in this post can reply

In response The Mac to his Publication

The Haptic Glove is a wearable device that simulates tactile sensations of virtual objects! ... When activated, it provides real feedback about the tactile sensation of holding a virtual object.

In response The Mac to his Publication

sensing and manipulating through touch
Haptics refers to sensing and manipulating through touch, enabling the user to touch and feel virtual reality (VR) or an existing distant object indirectly.

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