45 results about "Atom model" patented technology

Educational atom models which are attached to a plurality of filaments, to which each end is attached a self-orienting magnet. The magnet is comprised of one magnet or a plurality of magnets, such that the assembly can orient to align, attract and bond to a magnet attached to the end of another filament. The atom models can mimic chemical bonds when a magnet assembly from one atom model orients, attracts and bonds to a magnet from a different atom model. The bonding between magnets more accurately mimics the formation of chemical bonds in terms of force, energy, bonding-electron origin, speed, spontaneity, and atoms' ability to form double and triple bonds. The models are educationally engaging resulting in better learning outcomes.

The invention discloses an object-oriented hierarchical modeling method for a power grid cyber-physical system. The details are as follows: 1) establishing a five-layer structure model of the power grid CPS; 2) redefining the adjacency matrix to realize the power grid CPS topology modeling; 3) A power grid CPS object state transfer model is established to describe the object state transfer process; 4) The idea of ​​coupling model, each node in power grid CPS is regarded as an atomic model with independent internal structure, behavior and I / O interface. Each atomic model forms a coupling model in the form of an interface based on a certain connection relationship. Finally, the power grid CPS is described as a network composed of multiple coupled components, and the hierarchical relationship modeling of the power grid CPS is realized to describe the vertical relationship between levels. The invention can be used to analyze various problems such as the cross-influencing factors of the CPS physical space and the information space of the power grid, and has great significance for realizing the fusion modeling and comprehensive security assessment of the power grid cyber-physical system.

A calculation method for buckling deformation of a graphene-flexible substrate structure, comprising the steps of: establishing an atomic model of graphene; establishing an atomic model of a flexible substrate; calculating the total potential energy of graphene and its elastic substrate; seeking the minimum potential energy. The invention improves the numerical precision of the result by combining the genetic algorithm to optimize the calculation, and greatly reduces the calculation time, which is beneficial to the analog calculation of samples of the same larger size in the future.

The present disclosure discloses a bearing fault diagnosis method based on sparse theory, including: decomposing the collected original vibration signal X(t) of the bearing into N eigenmode functions through empirical mode decomposition, and calculating each eigenmode function mode function c i Energy ratio of (t) γ i And in order from large to small, select the eigenmode function corresponding to the maximum energy ratio as the analysis signal x(t); use the analysis signal x(t) to extract the i-th order natural frequency f in the bearing ni evoked free decay response x i (t), through the optimization algorithm from this free decay response x i (t) extract the modal parameters; use the impulse response function of the mass-spring second-order damping system as the atomic model, collect the extracted modal parameters to form a parameter set, input the parameter set into the atomic model, and construct a sparse dictionary ; use the matching pursuit algorithm in combination with the constructed sparse dictionary to solve the reconstructed signal, and perform envelope demodulation analysis on the reconstructed signal to form an envelope spectrum. When there is a fault characteristic frequency of the bearing in the envelope spectrum, then Realize fault diagnosis.

A simulation method for a macromolecular material comprises: a first calculation process for computing a Rouse parameter of a coarse-grained model; a second calculation process for computing a Rouse parameter of the a all-atom model; and a convert process for converting a unit system employed in a molecular dynamics calculation made by the use of the coarse-grained model into a unit system employed in the macromolecular chain, based on the Rouse parameter of the coarse-grained model and the Rouse parameter of the all-atom model.