SYSTEMATIC GENERATION OF MODELS FOR CRYSTALSTRUCTURESHans
نویسنده
چکیده
A method is given for the systematic generation of graphs representing known or hypothetical polyhedral topologies of crystals. The method is complete for some interesting types of polyhedral topologies insofar as all topologies which are possible under reasonable assumptions concerning crystal properties are generated. Restriction modules can be coupled with the enumeration algorithm such that only graphs are obtained representing topologies with speciic properties. For tetrahedral topologies, a technique is described for the embedding of graphs into three{dimensional Euclidean space.
منابع مشابه
The role of creative economics in entrepreneurship and revenue generation of public libraries: A systematic review
Purpose: The present study was conducted to identify the status of research on entrepreneurship and income generation in public libraries with a focus on creative economics. Method: The present study is a systematic study. The statistical population of this study was all the researches done in the field of creative economy in public libraries that have been published in connection with entrepr...
متن کاملThe Effectiveness of the Models and Guidelines on Detecting High-Risk Pregnancies: A Systematic Review
Background: The models or guidelines that make it possible for pregnant mothers to diagnose high-risk pregnancy signs and symptoms are not clearly stated. This systematic review was conducted to answer the question: what models/guidelines have contributed to women’s knowledge/performance regarding the detection of high-risk pregnancy? Method: This systematic review uses the Preferred Reporti...
متن کاملبررسی اثر تغییرات گام زمانی در مدلهای پیش بینی امواج در دریاچه ارومیه
Development of advanced spectral wind wave models has been the subject of comprehensive researches which has led to reliable wave predictions for assessing the impact of waves on the natural environment, coastal protection, offshore structures and harbor over the past two decades. On the other hand, the Geographical Information Systems (GIS) are developed for working with geographical data whic...
متن کاملA Systematic Review of Banking Business Models with an Approach to Sustainable Development
Modern banks have shifted their function as purely administrative, economic and industrial entities into socio-political institutions that must be sensitive to the surrounding environment. This function has always been neglected. This study was conducted based on primary, secondary, and tertiary data and reviews the full text of 75 studies selected from more than 245 studies. The selected elect...
متن کاملOptimal Placement of DGs in Distribution System including Different Load Models for Loss Reduction using Genetic Algorithm
Distributed generation (DG) sources are becoming more prominent in distribution systems due to the incremental demands for electrical energy. Locations and capacities of DG sources have great impacts on the system losses in a distribution network. This paper presents a study aimed for optimally determining the size and location of distributed generation units in distribution systems with differ...
متن کامل