Using a 3D Simulation for Teaching Functional Skills to Students with Learning, Attentional, Behavioral, and Emotional Disabilities

The study presents results from the use of a 3D simulation for teaching functional skills to students with learning, attentional, behavioral, and emotional disabilities, attending regular schools. An A-B single-subject study design was applied. The participating students (eight eight-to-nine years old) explored the simulation (a virtual school), encountered situations in which they observed how they are expected to behave, and had to demonstrate what they have learned. Each student attended a total of four two-hour sessions. Data were collected by means of observations and semi-structured interviews. All students demonstrated improved functional skills both in terms of the number of behaviors they acquired and in terms of those that were retained and manifested in the real school environment. On the basis of the results, it can be argued that 3D simulations are a promising tool for teaching functional skills to students with disabilities.

A 3D Simulation Technology for the Dynamic Process of Pipe String Tripping in Borehole

A 3D simulation technology for the process of pipe string tripping in wellbore is presented that uses ABAQUS's edge-to-edge contact technology as its basis for calculations. Results are compared with Landmark software tripping in analysis model. The new approach is based on a 3D finite element method of pipe string in an elastic borehole. It considers bending stiffness, torsional stiffness, pipe internal pressure and external pressure, buoyancy, contact forces and friction with localization of contact points. A numerical method description is provided that has proven to have high stability. Complete finite element model is provided and the method is described in detail to permit readers to replicate all results. The simulation model is compared to Landmark software tripping in analysis result. A ultra-deep horizontal well with measure depth more than 6000m is presented. Von Mises stress and triaxial safe factor for the new dynamics model are compared to Landmark software model. The most significant value of this model is that local contact open, contact forces and effective axial force can be obtained dynamically when pipe string stripping in, and it can be used to predict where and how pipe string will be stucked. The novelty of the new dynamics model is in the ability to solve tripping in operations of the entire pipe string in reasonable time using standard engineering computers.

Computer 3D-simulation of the temperature and diffusion kinetics of SHS in the closest packing of Ni@Al “core-shell” mesocells for modes with variable values of the key ignition parameters

The paper presents the results of computer 3D-simulation of the temperature and diffusion kinetics of SHS in a test model cluster of Ni-Al particles for modes with variable values of the key parameters of the SHS combustion wave ignition. The key parameters for the SHS combustion wave ignition were chosen as follows: the initial temperature for preliminary heating of the Ni-Al particles mixture, the ignition temperature of the combustion wave in the mixture of Ni-Al particles, the duration of the action of the heat pulse until the combustion wave ignition, and the thickness of the ignited layer in the mixture of particles. A program has been created to generate a test model cluster in the form of the closest ball packing of the Ni@Al “core-shell” mesocells (CBP-structure cluster of the Ni@Al “core-shell” mesocells). Using such a CBP-structure cluster, was continued a testing of created software package intended for 3D-simulation of SHS macrokinetics in a heterogeneous particle mixture, taking into account parallel MPI-calculations. In addition, the value ranges of the key parameters of the SHS combustion wave ignition for which the simulation results are in adequate agreement with the experimental data are determined as the parameters of the program model for SHS-simulation. The results of computational experiments have shown that diffusion kinetics is interrelated with temperature kinetics, and in mesocells with different locations within the CBP-structure cluster, the formation of intermetallic phases occurs inhomogeneously.

Substation Secondary Cable Path Optimization Design Based on 3D Simulation and Improved Dijkstra Algorithm

In order to accurately predict the length of secondary cable laying in substation construction project and avoid the problem of resource waste in engineering construction, a secondary cable path optimization model based on 3D simulation and Dijkstra algorithm was established. Firstly, through the application of Bentley software, the three-dimensional model of substation is established, and the workflow of BRCM cable laying software is introduced. Secondly, the common and the improved Dijkstra algorithm are used to carry out the path planning on the raster map respectively, and the experimental simulation is carried out. Finally, the simulation results show that the path length of the improved algorithm is 24.32% and 28.66% less than that of the traditional Dijkstra. It is 12.34% less than that of the ant colony algorithm, which provides some useful theoretical references for the secondary cable laying in the future substations.

STMO-16 The usability of Detailed pre-operative 3D simulation image for Tumor Resection of High grade glioma

Introduction Understanding micro structures is important for the safety and reliable tumor resection for high grade glioma(HGG). The high-resolution 3-demension pre-operative simulation image (3D simulation imege) provides the useful information to the operators. We will report the outcome and the device of 3D simulation image at our single institute. Material and Method From April 2019 to July 2021, 56 cases of HGG (grade III: 18 cases, grade IV: 38 cases, initial cases: 49 cases, recurrent cases: 7) were included retrospectively. Zedview, Horos, and Freeform were used to create 3D simulation image from conventional clinical images as CT, MRI, and angiography. The evaluations of anatomical structures were 9 items: cerebral arteries (A), cerebral veins (V), perforators (Per), passing arteries (Pass), feeders (F), drainers (D), sylvian fissure vessels (SV), brain structures (B), and ventricles (Vent). After determining the necessity of 3D visualization for operative planning and evaluating whether it was possible to create the 3D image, the consistency with the anatomical structure and the usefulness for surgery were scored (Excellent 3 points / Good 2 points / Poor 1 point) respectively. Result A: 56 out of 56 cases (100%) was judged as necessary, and the average score was 2.73 points. V: 56/56 cases (100%), 2.70 points. Per: 7/7 cases (100%), 1.80 points. Pass: 7/7 cases (100%), 2.86 points. F: 34/36 cases (94.5%), 2.56 points. D: 22/22 cases (100%), 2.36 points. SA: 7/7 cases (100%), 2.43 points. B: 53/54 (98.1%), 2.70 points. Vent: 27/28 cases (96.5%), 2.50 points. The average score of all structures was 2.59 points. Discussion and Conclusion 3D imaging of the required anatomical structures was possible in almost all cases, and consistency and usefulness in most items were highly scored. Although the evaluation of the perforators was low, the 3D simulation image seemed to be useful for surgical planning.