Research on the Trajectory Planning and Control Technology of Industrial Robots Guided by Computer Visualization

With the popularization of computers, the development of all walks of life has become more rapid. This article mainly analyzes the mechanical structure design of the Cartesian coordinate robot system, it also studies the motion control.

A Qualitative Quasi-experimental Evaluation of Using 3D Computer Visualization to Support User Participation in Architectural Design Process

This article evaluates the use of three-dimensional (3D) computer visualization (CV) media against two-dimensional (2D) traditional visualization (TV) media, to support the participation of users at the early stage of the architectural design process, based on a qualitative quasi-experimental approach. As a strategic qualitative approach, a conversational dialogue between an architect and twelve clients was used to assess the participation behavior of the clients in designing their houses by using two different versions of media in experimental design conditions. Results have revealed that the qualitative quasi-experiment was convenient to distinguish the various kinds of media influencing the interaction and information exchange between architects and clients. 3D CV was more helpful in stimulating more information and ideas through the conversation process.

Uniform Manifold Approximation and Projection Analysis of Soccer Players

In professional soccer, the choices made in forming a team lineup are crucial for achieving good results. Players are characterized by different skills and their relevance depends on the position that they occupy on the pitch. Experts can recognize similarities between players and their styles, but the procedures adopted are often subjective and prone to misclassification. The automatic recognition of players’ styles based on their diversity of skills can help coaches and technical directors to prepare a team for a competition, to substitute injured players during a season, or to hire players to fill gaps created by teammates that leave. The paper adopts dimensionality reduction, clustering and computer visualization tools to compare soccer players based on a set of attributes. The players are characterized by numerical vectors embedding their particular skills and these objects are then compared by means of suitable distances. The intermediate data is processed to generate meaningful representations of the original dataset according to the (dis)similarities between the objects. The results show that the adoption of dimensionality reduction, clustering and visualization tools for processing complex datasets is a key modeling option with current computational resources.

Assessing the Effect of Laboratory Activities on Core Curricular Units of an Engineering Master’s Program: A Multivariate Analysis

This paper studies the effect of laboratory activities on the results obtained by the students on 7 core curricular units (CUs) of an Integrated Master in Mechanical Engineering. Each CU is characterized by means of 4 performance indices, over the 6-year period 2014/2015–2019/2020. Firstly, individual indices in a per semester basis are compared. Secondly, the CUs are regarded as objects defined in a 4-dimensional space of features, and the multidimensional scaling (MDS) technique is adopted for clustering and computer visualization. The MDS is powerful for analyzing the multivariate dataset, unveiling patterns not perceived by standard statistical methods.

USING AUTOCAD AUTODESK AND AUTODESK INVENTOR GRAPHIC EDITORS AS DESIGN TOOLS IN 3D CAD

Initially, the computers and software were supposed to complement the engineer’s traditional techniques, replacing the drawing board and calculator. Today, the computers with spe-cialized software almost completely replace the traditional methods. There is given an overview of the graphic editors AutoCAD Autodesk and Autodesk Inventor, possibilities of performing designs in three-dimensional space using parametric modeling. The advantages and disadvantages of each program are analyzed. An example of using AutoCAD Autodesk and Autodesk Inventor for computer visualization of a 3D object is given. To evaluate the work in both programs, 13 users were involved, who noted the ease of mastering AutoCAD Autodesk, which is important for the young engineers, as well as for the students.

COMPUTER TOOLS FOR SOLVING MATHEMATICAL PROBLEMS: A REVIEW

The rapid development of digital computer hardware and software has had a dramatic influence on mathematics, and contrary. The advanced hardware and modern sophistical software such as computer visualization, symbolic computation, computerassisted proofs, multi-precision arithmetic and powerful libraries, have provided resolving many open problems, a huge very difficult mathematical problems, and discovering new patterns and relationships, far beyond a human capability. In the first part of the paper we give a short review of some typical mathematical problems solved by computer tools. In the second part we present some new original contributions, such as intriguing consequence of the presence of roundoff errors, distribution of zeros of random polynomials, dynamic study of zero-finding methods, a new three-point family of methods for solving nonlinear equations and two algorithms for the inclusion of a simple complex zero of a polynomial.