A portable truss structure experiment device, belonging to the field of teaching practice in structural mechanics of Civil Engineering. The device comprises a basic framework, detachable beams, locating rods, a slide rail, hinge supports, a truss structure, reflectors, measurement apparatuses and a collection apparatus. The device has the advantages of simple structure, convenient assembly and disassembly, reuse, accurate measurement result, can be synchronized to a large screen to directly obtain a structure influence line, and can implement classroom demonstration of the teaching content of an influence line in structure mechanics. Through experiments, students can understand relevant theories of the influence line in structural mechanics more accurately.

A portable truss structure experiment device, belonging to the field of teaching practice in structural mechanics of Civil Engineering. The device comprises a basic framework, detachable beams, locating rods, a slide rail, hinge supports, a truss structure, reflectors, measurement apparatuses and a collection apparatus. The device has the advantages of simple structure, convenient assembly and disassembly, reuse, accurate measurement result, can be synchronized to a large screen to directly obtain a structure influence line, and can implement classroom demonstration of the teaching content of an influence line in structure mechanics. Through experiments, students can understand relevant theories of the influence line in structural mechanics more accurately.

A carbonate microfluidic model with controllable nanoscale porosity and methods are described. The method for fabricating a carbonate nanofluidic micromodel with controllable nanoscale porosity for studying fluid behaviors in an underground oil-reservoir environment includes: disposing a plurality of polymer spheres into a transparent flow cell; initiating crystallization of the plurality of polymer spheres to form a template with an opal structure; filling the transparent flow cell with a calcium-based solution and a carbonate-based solution to form nanocrystals in voids of the opal structure; and removing the template formed by crystallization of the plurality of polymer spheres from the transparent flow cell leaving an inverse opal structure with a plurality of nanoscale pores and a carbonate surface. The model includes: a transparent flow cell including a first end defining an inlet and a second end defining an outlet; and an inverse opal structure of carbonate inside the transparent flow cell.

A carbonate microfluidic model with controllable nanoscale porosity and methods are described. The method for fabricating a carbonate nanofluidic micromodel with controllable nanoscale porosity for studying fluid behaviors in an underground oil-reservoir environment includes: disposing a plurality of polymer spheres into a transparent flow cell; initiating crystallization of the plurality of polymer spheres to form a template with an opal structure; filling the transparent flow cell with a calcium-based solution and a carbonate-based solution to form nanocrystals in voids of the opal structure; and removing the template formed by crystallization of the plurality of polymer spheres from the transparent flow cell leaving an inverse opal structure with a plurality of nanoscale pores and a carbonate surface. The model includes: a transparent flow cell including a first end defining an inlet and a second end defining an outlet; and an inverse opal structure of carbonate inside the transparent flow cell.

A carbonate microfluidic model with controllable nanoscale porosity and methods are described. The method for fabricating a carbonate nanofluidic micromodel with controllable nanoscale porosity for studying fluid behaviors in an underground oil-reservoir environment includes: disposing a plurality of polymer spheres into a transparent flow cell; initiating crystallization of the plurality of polymer spheres to form a template with an opal structure; filling the transparent flow cell with a calcium-based solution and a carbonate-based solution to form nanocrystals in voids of the opal structure; and removing the template formed by crystallization of the plurality of polymer spheres from the transparent flow cell leaving an inverse opal structure with a plurality of nanoscale pores and a carbonate surface. The model includes: a transparent flow cell including a first end defining an inlet and a second end defining an outlet; and an inverse opal structure of carbonate inside the transparent flow cell.

A carbonate microfluidic model with controllable nanoscale porosity and methods are described. The method for fabricating a carbonate nanofluidic micromodel with controllable nanoscale porosity for studying fluid behaviors in an underground oil-reservoir environment includes: disposing a plurality of polymer spheres into a transparent flow cell; initiating crystallization of the plurality of polymer spheres to form a template with an opal structure; filling the transparent flow cell with a calcium-based solution and a carbonate-based solution to form nanocrystals in voids of the opal structure; and removing the template formed by crystallization of the plurality of polymer spheres from the transparent flow cell leaving an inverse opal structure with a plurality of nanoscale pores and a carbonate surface. The model includes: a transparent flow cell including a first end defining an inlet and a second end defining an outlet; and an inverse opal structure of carbonate inside the transparent flow cell.

The present invention relates to a dummy vehicle for performing tests for driver assistance systems. The dummy vehicle comprises a vehicle element reproducing a part of a vehicle to be simulated. The vehicle element forms a shell structure, wherein the shell structure comprises an outer layer and an inner layer. The outer layer is arranged further outwardly in the shell structure than the inner layer. The outer layer is transparent to sensor signals from sensors of the driver assistance system, and the inner layer is designed to be sensor-sensitive to sensor signals from sensors of the driver assistance system.

A computer includes a processor and a memory, the memory storing instructions executable by the processor to generate physics data representing operation of a virtual vehicle with a physics simulator processor, collect movement data of a user with a tracking processor, and provide, from a virtual reality processor, one or more images to a virtual reality display of the user based on the physics data sets and the collected movement data.

A computer includes a processor and a memory, the memory storing instructions executable by the processor to generate physics data representing operation of a virtual vehicle with a physics simulator processor, collect movement data of a user with a tracking processor, and provide, from a virtual reality processor, one or more images to a virtual reality display of the user based on the physics data sets and the collected movement data.

A data processing method for an analogue modelling experiment of a hypergravity geological structure includes steps of: performing two-dimensional photographing and three-dimensional elevation scanning with an analogue modelling experiment device with a curved model surface for the hypergravity geological structure, so as to collect initial elevation data and initial velocity field data; and correcting the initial elevation data and the initial velocity field data to obtain corrected elevation data and corrected velocity field data. The data processing method can realize orthographic correction and three-dimensional projection transformation of initial elevation data, as well as orthographic correction and two-dimensional projection transformation of initial velocity field data, which can more realistically and objectively reflect the experimental phenomenon, which is conducive to truly expressing the experimental results and facilitates the analogy analysis with the actual geological prototype.