On the Identification of the Sharp Spike in the Heat Curve for Argon, Nitrogen, and Methane Adsorption on Graphite: Reconciliation between Computer Simulation and Experiments

2011 ◽  
Vol 116 (1) ◽  
pp. 953-962 ◽  
Author(s):  
Chunyan Fan ◽  
Musab Abdul Razak ◽  
D. D. Do ◽  
D. Nicholson
Keyword(s):  
Computer Simulation ◽  
Methane Adsorption ◽  
Heat Curve

Modeling of Arbitrary-Shaped Specific and Latent Heat Curves in Phase-Change Storage Simulation Routines

1990 ◽  
Vol 112 (1) ◽  
pp. 29-33 ◽  
Author(s):  
G. C. J. Bart ◽  
P. C. van der Laag
Keyword(s):  
Computer Simulation ◽  
Phase Change ◽  
Latent Heat ◽  
Wall Temperature ◽  
Phase Change Materials ◽  
Heat Storage ◽  
Temperature Transition ◽  
Transition Range ◽  
Heat Curve ◽  
Change Material

In solar heat storage, use is often made of the latent heat of phase-change materials (PCM) with a wide temperature transition range. In this paper the heat withdrawal of a slab of such a phase-change material after a step-wise change in wall temperature, and as a function of the shape of the specific and latent heat curve, has been studied with a computer simulation. It will be outlined that various shaped curves show the same heat withdrawal character as an equivalent rectangular-shaped specific heat curve. A procedure to obtain this equivalent curve will be given.

scholarly journals Computer Simulation Study for Functional Group Effect on Methane Adsorption in Porous Silica Glass

2019 ◽  
Vol 23 (5) ◽  
pp. 197-204
Author(s):  
Pongpon Teerachawanwong ◽  
Bharanabha Makkaroon ◽  
Chontira Boonfung ◽  
Chaiyot Tangsathitkulchai ◽  
Atichat Wongkoblap
Keyword(s):  
Computer Simulation ◽  
Simulation Study ◽  
Silica Glass ◽  
Functional Group ◽  
Porous Silica ◽  
Methane Adsorption ◽  
Group Effect ◽  
Computer Simulation Study ◽  
Porous Silica Glass

Characterization of Modulated Structure Through Structure Images and their Computer Simulation

1990 ◽  
Vol 48 (1) ◽  
pp. 70-71
Author(s):  
Kiyomichi Nakai ◽  
Yusuke Isobe ◽  
Chiken Kinoshita ◽  
Kazutoshi Shinohara
Keyword(s):  
Computer Simulation ◽  
High Resolution ◽  
Spherical Aberration ◽  
High Resolution Electron Microscopy ◽  
Basic Mechanism ◽  
Objective Lens ◽  
Specimen Thickness ◽  
Transmitted Beam ◽  
Modulated Structure ◽  
Resolution Electron

Induced spinodal decomposition under electron irradiation in a Ni-Au alloy has been investigated with respect to its basic mechanism and confirmed to be caused by the relaxation of coherent strain associated with modulated structure. Modulation of white-dots on structure images of modulated structure due to high-resolution electron microscopy is reduced with irradiation. In this paper the atom arrangement of the modulated structure is confirmed with computer simulation on the structure images, and the relaxation of the coherent strain is concluded to be due to the reduction of phase-modulation.Structure images of three-dimensional modulated structure along <100> were taken with the JEM-4000EX high-resolution electron microscope at the HVEM Laboratory, Kyushu University. The transmitted beam and four 200 reflections with their satellites from the modulated structure in an fee Ni-30.0at%Au alloy under illumination of 400keV electrons were used for the structure images under a condition of the spherical aberration constant of the objective lens, Cs = 1mm, the divergence of the beam, α = 3 × 10-4 rad, underfocus, Δf ≃ -50nm and specimen thickness, t ≃ 15nm. The CIHRTEM code was used for the simulation of the structure image.

Averting robo-bees: why free-flying robotic bees are a bad idea

2019 ◽  
Vol 3 (6) ◽  
pp. 723-729
Author(s):  
Roslyn Gleadow ◽  
Jim Hanan ◽  
Alan Dorin
Keyword(s):  
Climate Change ◽  
Computer Simulation ◽  
Food Security ◽  
European Countries ◽  
Plant Interactions ◽  
Plant Insect Interactions ◽  
Native Habitat ◽  
Insect Pollinators ◽  
Insect Interactions

Food security and the sustainability of native ecosystems depends on plant-insect interactions in countless ways. Recently reported rapid and immense declines in insect numbers due to climate change, the use of pesticides and herbicides, the introduction of agricultural monocultures, and the destruction of insect native habitat, are all potential contributors to this grave situation. Some researchers are working towards a future where natural insect pollinators might be replaced with free-flying robotic bees, an ecologically problematic proposal. We argue instead that creating environments that are friendly to bees and exploring the use of other species for pollination and bio-control, particularly in non-European countries, are more ecologically sound approaches. The computer simulation of insect-plant interactions is a far more measured application of technology that may assist in managing, or averting, ‘Insect Armageddon' from both practical and ethical viewpoints.

Sign in / Sign up

Export Citation Format

Share Document