Inherent structure property, potential energy

The potential energy range between the lowest- and the highest-lying basin bottoms is an extensive property of the A -body system. In view of the fact that exponentially many (in N) distinct inherent structures are crowded in between these limits, it is sensible to consider the statistical distribution of basins in a symmetry sector by depth. Let... 

In summary, symmetry is a useful tool in structure correlation for at least three purposes (1) to enumerate all equivalent ways of labeling atoms in a given molecule or molecular fragment and hence to eliminate the element of arbitrariness inherent in any particular labeling scheme (2) to quantify the notion of approximate symmetry with the help of symmetry coordinates (3) to analyze the symmetry properties of the molecular potential energy surface. 

CMP materials are microporous, amorphous, 3-D nets with extended jt-conjugation. This extended conjugation, in combination with inherent microporosity, offers up unique potential for properties that rely upon electronic structure, including conduction, energy storage and optical properties. 

These theorems on the influence of symmetry on general properties of potential energy hypersurfaces can be viewed as constraints inherent in the nuclear configuration space M, affecting all energy functions defined over M. In fact, M has more stmcture than a simple metric space, and M should never be considered without this additional structure. 

The current draw-back to the use of PHAs on Earth is their cost of production. Even though it is an environmentally benign process, currently it is cheaper to produce thermoplastic materials with similar mechanical properties from petroleum. On a long-term space mission however, there is no access to raw materials from Earth, and in addition, an accumulation of organic waste occurs. These waste products can not be discarded since it is imperative to conserve and transform the energy inherent in the waste. Moreover, any process performed onboard a spacecraft needs to comply with safety regulations and should be as non-intrusive as possible. Since fermentation processes are performed at ambient temperatures and do not require the use of harsh chemicals, they are an ideal approach to the production of the structural and other materials, potentially from waste products. 

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