scholarly journals Nanocomposite Based on Natural Materials

10.5772/14865 ◽  
2011 ◽  
Author(s):  
Milorad Davidovic ◽  
Marina Kutin ◽  
Suzana Linic ◽  
Ubavka Mioc ◽  
Zoran Nedic ◽  
...  
Keyword(s):  
Natural Materials

Color Space Transformation using Neural Networks

2019 ◽  
Vol 2019 (1) ◽  
pp. 153-158
Author(s):  
Lindsay MacDonald
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Color Space ◽  
Reflectance Spectra ◽  
Network Architectures ◽  
Color Spaces ◽  
Natural Materials ◽  
Space Transformation ◽  
Color Space Transformation

We investigated how well a multilayer neural network could implement the mapping between two trichromatic color spaces, specifically from camera R,G,B to tristimulus X,Y,Z. For training the network, a set of 800,000 synthetic reflectance spectra was generated. For testing the network, a set of 8,714 real reflectance spectra was collated from instrumental measurements on textiles, paints and natural materials. Various network architectures were tested, with both linear and sigmoidal activations. Results show that over 85% of all test samples had color errors of less than 1.0 ΔE2000 units, much more accurate than could be achieved by regression.

Technological capabilities of vibration fi nishing of parts by granular organic media from natural materials

2020 ◽  
pp. 407-410
Author(s):  
E.Yu. Krupenya ◽  
A.P. Shishkina
Keyword(s):  
Experimental Verification ◽  
Organic Media ◽  
Technological Capabilities ◽  
Natural Materials ◽  
Machine Parts ◽  
Parts Manufacturing

The essence and scope of granular organic media from natural materials in the technology for machine parts manufacturing are shown. Vibration finishing model of the parts surface by granules of stone organic media and the results of its experimental verification, features of drying and vibration wiping of parts by organic media are presented.

Green Building, Green Behavior? An Analysis of Building Characteristics that Support Environmentally Responsible Behaviors

2020 ◽  
pp. 001391652094260
Author(s):  
Erin M. Hamilton
Keyword(s):  
Online Survey ◽  
Green Building ◽  
Built Environments ◽  
Sustainable Buildings ◽  
Natural Materials ◽  
Environmentally Responsible ◽  
Building Characteristics ◽  
Green Behavior ◽  
Environmentally Responsible Behaviors ◽  
Responsible Behaviors

This study examines the environmentally responsible behaviors (ERBs) of undergraduates ( n = 575). ERBs were measured in an online survey and the influence of situational context on behavior was explored at two scales: 1) green versus non-green building and 2) building characteristics. The Positive Sustainable Built Environments model was used to analyze three building characteristics: Prime, Permit, and Invite. Prime refers to characteristics that prepare occupants to adopt ERBs via communicating a sustainable ethos or restoring attentional capacity (e.g., use of natural materials and views to nature). Permit refers to features that allow occupants to conserve resources (e.g., operable light switches). Invite pertains to features that explicitly encourage ERBs (e.g., signage prompting occupants to turn off lights). Regression results demonstrated that living in a green building had no significant impact on ERBs. However, the Prime and Invite building characteristics significantly predicted improved Energy, Water, and Materials conservation. Results yield implications for designers seeking to create sustainable buildings that promote ERBs.

Sorptive removal of Remazol Brilliant Blue R from aqueous solution by diethylenetriamine functionalized magnetic macro-reticular hybrid material

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 22395-22410 ◽  
Author(s):  
K. Z. Elwakeel ◽  
A. A. El-Bindary ◽  
A. Ismail ◽  
A. M. Morshidy
Keyword(s):  
Aqueous Solution ◽  
Hybrid Material ◽  
Glycidyl Methacrylate ◽  
Synthetic Polymer ◽  
Brilliant Blue ◽  
Natural Materials ◽  
Remazol Brilliant Blue R ◽  
Sorptive Removal

Chitosan, glycidyl methacrylate (synthetic polymer) and magnetite are combined to produce novel magnetic macro-reticular hybrid synthetic–natural materials which are shown to be effective sorbents for RBBR ions.

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