Environment concepts

Dubois, J.-E. (1976). Ordered Chromatic Graph and Limited Environment Concept. In Chemical Applications of Graph Theory (Balaban, A.T., ed.). Academic Press, New York (NY), pp. 333-370. 

In the DARC/PELCO method (1), the structural variable makes use of graph theory. It is based on simultaneous representation of ail structures (15) whose structural modifications are to be correlated with variations in property and of the population containing these structures. The environment concept is used to describe each structure as an ordered chromatic graph. The principle of syn chronous generation of a structure and of the series which contains it, called hyperstructure is used to describe the population to be studied. This concept and this principle, when applied to an isofocal population, define a multidimensional variable characterizing the chemical structure. 

An experimental way to find the smallest primitive cell is the atomic environment concept. The distances of all lattice points around a central lattice are put into a histogram. In the histogram the largest gap between different lattice points is used as the guiding rule to define the coordination polyhedron (Figures 2.38a and b). 

HADDON S UNWANTED ENERGY RELEASE AND HAZARDOUS ENVIRONMENT CONCEPT... 

Puddnhead is a freelance concept development artist located in Hollywood, California, who creates highly developed conceptual drawings and paintings for the entertainment industry. Areas of specialty include creature and character design, game environment concepts, matte paintings, and storyboards. Some of his clients include Lucasfilm, Sony Pictures Entertainment, Columbia Pictures, and Hasbro. 

Figure 3-94. This wire system for GE Plastics Living Environments Concept House seen in Chapter 1 is made of GE s Noryl resin, for high heat resistance and easy processing. The raceway is a wire channel that runs along the wall, much like a baseboard, to contain electrical outlets, receptacles, telephone plugs, and cable connections. This extruded resin prototype raceway, which is featured in every room, as a UL 94 flammability listing of V-O.

Figure 4-27. These roofing panels by Nailite International of Miami are featured on GE Plastics Living Environments Concept House seen in Chapter 1. The panels are made of GE s Noryl PPO resin, known for its excellent moisture, UV, wear resistance, and flame resistance. Nailite first marketed such panels in the Los Angeles area, where a ban on cedar shakes and shingles was being considered.

Figure 12-4. This Total Environmental Control System in GE Plastics Living Environments Concept House seen in Chapter 1 combines the functions of five home comfort appliances, using TPs to provide aesthetics, heat and corrosion resistance, light weight, and ease of serviceability and installation, and is designed for manufacturability.

Figure 12-11. The interior of GE Plastics Living Environments Concept House features a GE Gecet TP resin substrate as part of a distribution floor developed by Infill Systems B.V. of the Netherlands, through which wiring and piping can be routed.

Living Environments Concept House Explores New Ideas, Materials and Building Processes. GE Plastics News Release, Nov. 1989. 

---