This paper studies the performance of a IoT-relaying node transmission with massive multiple-input multiple-output (MIMO) system network. The system is a simple schematic setup which includes one user, one IoT-relaying node and one base station (BS). The user and IoT-relaying node have a single antenna while the BS is equipped with a hundred and/or even a thousand of antennas array. The transmission protocol is performed based on a very simple amplify-and-forward (AF) relaying scheme. To decode the transmitted signal from the user, the BS applies maximum-ratio (MR) combining technique (the combined channel of the links from the user to BS and the IoT-relaying node to the BS) under assumption of perfect channel station (CSI). The exact closed-form of the throughput and the results for the signal-to-interference-plus-noise ratio (when the number of relay antennas goes to large) are analyzed.

Industrial robots have become one of the effective support tools for human labor. Robots are a solution to replace humans in repetitive tasks and in environments where humans cannot work. Robots have become one of the factors responding to the Industrial Revolution 4.0. Automatic control devices require high-precision control quality. Therefore, in this paper, we focus on researching controlling the position of the actuator accurately based on the PID algorithm. First, we study the forward and inverse kinematics of a three-joint robot. Second, we design the robot model on inventor software and transfer the 3d model in inventor software to Matlab Simmechanics. Third, modeling robot model on Simulink to simulate and evaluate the results achieved

This work presents a benchmarking study between Lagamine, an in-house developed finite element (FE) code, and COMSOL Multiphysics® (Comsol) commercial software in thermal analyses to investigate their capability in modeling complex manufacturing processes. For this purpose, two case studies, including a NAFEMS benchmark for heat transfer with convection and a Directed Energy Deposition (DED) of a bulk sample, were used as test cases. The simulation models using Lagamine and Comsol solvers for each case were described. The underlying algorithms and theories, as well as the soft-ware development, are investigated. The computational results indicate slight differ-ences between Lagamine and Comsol solutions in both case studies. For the NAFEMS test case, the results obtained with Comsol solver appear to be less dependent on the mesh size than those obtained with Lagamine. For the DED test case, within the chosen configurations of Lagamine and Comsol codes, the maximum difference in the highest peak temperatures obtained from the two codes is about 20%. From an engineering point of view, it is suggested to determine parameters of the FE model consistently with the selected FE code to provide the best match with experimental observations.

Binh Duong, a dynamic province in the Southern Key Economic Region in Vietnam, has a fast growing economy and strong economic restructuring towards industrialization and modernization, have affected many aspects of economy, culture, society and environment. This study analyzes the influence of economic restructuring on urban development in Binh Duong province by utilizing the time series data throughout 2000 - 2020 and the household interview method of the topic "Urbanization and its effects on land use restructuring in Binh Duong province" shows the shift of occupations from agriculture to non-agriculture. The research results show that economic restructuring contributes to promoting economic and social development in general and expanding the urban network of Binh Duong province in particular, but it has some limitations in the process of development. Therefore, Binh Duong wants to successfully integrate into the world economy and develop urban areas towards sustainability (by 2030), it must have specific, scientific and objective analysis and evaluation on the success and limitations of the economic restructuring process and its impact on the urban system in recent times. The research results also have a scientific basis for proposing appropriate and effective solutions and policies to successfully implement the goals and orientations of economic restructuring and urban development that Binh Duong has been approved.

Performance-related pay (PRP) is an integral part of Reward Management (RM) and is considered to have beneficial effects on organisational performance and employee motivation. Drawing on 14 case studies, this paper examines the Reward Management practices of local and multinational companies in Australia with specific consideration to PRP within the debate over the applicability of the transfer of the Human Resource Management (HRM) practices between nations through subsidiary-parent company relationships. After reviewing the relevant literature(s), the study concentrates on finding whether multinational corporations (MNC) in Australia pursue similar or different RM practices compared to their domestically owned Australian counterparts with special reference to PRP. It also investigates whether there are national variations between multinational companies in terms of the nature and character of their practices. The findings reveal country of origin differences in the way PRP practices are applied in subsidiaries of foreign-owned companies in Australia and local Australian firms. The case studies are used to examine and explain the practices.

This study investigated grammatical difficulties encountered by students of the People’s Police University while learning grammar in ESP courses. The design included questionnaires to teachers and students, and classroom participant observations. The findings indicated that the student respondents only perceived four target features to be difficult to learn. The results also showed that the students’ perceptions of grammatical difficulty were influenced by several factors including the inherent complexity of rules, L1 transfer, students’ differences in language aptitude, students’ infrequency of practice, and teaching methodology. The findings will hopefully be useful for teachers and researchers with an interest in this line of research.