Systems analysis

This study examines classroom interaction in English-speaking lessons at a high school, with primary objectives of (i) identifying the predominant interaction patterns and (ii) analyzing how these interactions occur in relation to teacher talk and student spoken output.

9p vijiraiya 19-05-2025 4 1   Download

This study examines the frequency and function of nominalisation in English scientific discourse (ESD) through an analysis of 33 texts in engineering, biology, medicine, pharmacy, chemistry, geography, history, physics, environmental science, business, and information technology.

9p vijiraiya 19-05-2025 2 1   Download

Đánh giá diễn biến dải ven biển phía sau các công trình kè cọc ly tâm đã xây dựng ở vùng biển phía Tây tỉnh Cà Mau bằng phương pháp viễn thám, GIS, kết hợp phân tích biến đổi đường bờ bằng công cụ DSAS (Digital Shoreline Analysis System), đến năm 2023.

13p bachlapkim01 09-05-2025 1 1   Download

This article presents an overview of Stream Algebra, a research field that has emerged after the birth of Relational Algebra used in Database Management Systems (DBMS). When Stream Data appeared and needed to be processed in real-time, the role of Stream Algebra became evident. Since the rise of Big Data, this field has received attention in recent years, the role of Stream Algebra has been further demonstrated.

7p visarada 28-04-2025 1 1   Download

This paper develops a calculation process for PT endogenous demand with respect to social costs in motorcycle-dominated mixed transport systems, based on the total social cost of public transport in previous research. The incremental elasticity analysis is used to estimate the endogenous passenger demand for dedicated PT technologies.

14p visarada 28-04-2025 1 1   Download

In the design and calculation of stormwater drainage systems, the design rainfall intensity plays a crucial role and is widely used in runoff calculations. Due to the influence of local climatic factors, the selection of probability distributions for rainfall frequency analysis and the methods used to determine parameters for empirical equations result in a variety of equations compared to traditional Rainfall Intensity-Duration-Frequency curves.

12p visarada 28-04-2025 1 1   Download

This paper introduces a practical and simple power control method for wind energy conversion systems based on a doubly-fed induction generator. Due to the limitations of traditional proportional-integral controllers when the parameters of the doubly-fed induction generator and wind speed vary, fuzzy control theory is applied to overcome these challenges.

16p visarada 28-04-2025 1 1   Download

This paper investigates the system performance of hybrid time-power switching based relaying (TPSR) energy harvesting enabled in the multisource half-duplex relaying network over the Rayleigh fading channel. The outage probability (OP) of the proposed system model with implementing maximal ratio combining (MRC) and selection combination (SC) technique at the receiver is presented and analyzed.

8p viling 11-10-2024 5 1   Download

This paper presents the impacts of Electric Vehicle Charging Stations (EVCSs) on voltage and frequency quality in the Microgrid. It addresses security analysis, voltage and frequency quality, as well as issues related to EVCSs.

13p viling 11-10-2024 3 1   Download

This study applies Wavelet analysis to develop a comprehensive method for detecting damage in spiral bevel gears within automotive drive systems. By utilising Wavelet analysis to examine the vibration signals of the gears, it is possible to identify spatial and temporal variations in the signals, thereby detecting signs of damage in the system.

12p vifilm 11-10-2024 5 1   Download

This study employs a two-step method to examine the seismic response of offshore wind turbine (OWT) systems supported by monopile foundations. In the first step, the soil-monopile interaction (SMI) is simulated using the professional software program OpenSeesPL.

9p viengfa 28-10-2024 2 2   Download

This paper applies the homotopy analysis method to study nonlinear free vibrations. The paper has used the homotopy analysis method to find analytical solutions of a nonlinear two-degree-of-freedom system. Analytical results have found the natural oscillation frequencies, the displacement formula of the system are approximately calculated at the 10th order.

9p viengfa 28-10-2024 2 0   Download

Paper "Multi-source data analysis for bike sharing systems" propose two types of regression models using multi-source data to predict the hourly bike pick-up demand at cluster level: Similarity Weighted K-Nearest-Neighbor (SWK) based regression and Artificial Neural Network (ANN). SWK-based regression models learn the weights of several meteorological factors and/or taxi usage and use the correlation between consecutive time slots to predict the bike pick-up demand.

6p tuongtieume 03-04-2025 6 1   Download

This paper aims to analyze linguistic features of modality used in English journal articles from Systemic Functional Grammar perspective to enhance global benchmarks in international publications to convey communicative functions between writers and readers effectively.

4p viyuhi 26-03-2025 4 1   Download

This paper systematically presents a specific application of linear algebra in information security and cryptography, highlighting the crucial role of matrix operations and linear techniques in the design and analysis of encryption algorithms.

8p viaburame 14-03-2025 3 1   Download

This paper investigates the potential for Vietnam to become a significant player in the rapidly evolving digital investment sector. Digital investment, encompassing tools like robo-advisors and neobrokers, represents a transformative shift in how individuals and institutions manage financial assets. By leveraging global trends, Vietnam’s youthful demographic, growing internet penetration, and government-led digital transformation initiatives provide a solid foundation for the expansion of digital investment platforms.

12p tuongmotranh 18-03-2025 6 1   Download

Psoriatic arthritis (PsA) is a chronic, systemic inflammatory disease. This study assessed the cost-effectiveness of secukinumab, an interleukin-17A inhibitor, versus standard of care (SoC) from Vietnam’s National Health Insurance (NHI) perspective. Model-based cost-effectiveness analysis, the structure was a 3-month decision tree leading into a Markov model.

10p vihyuga 04-03-2025 6 1   Download

This paper will present an IoT-based system to monitor critical parameters of vehicles, including temperature, humidity, fuel consumption, and positioning. The proposed system integrates a network of sensors within the vehicle to capture real-time data, which is transmitted to a centralized control unit for analysis and visualization.

9p viinuzuka 28-02-2025 5 1   Download

The dynamic response of a concrete pavement system with load transfer dowels under the effects of moving loads is a topic of interest to many scholars. However, to fully understand the nature of the stress-strain state of the concrete slab, load transfer dowels, and the subgrade in the pavement structure, further research is needed.

15p viyamanaka 06-02-2025 4 1   Download

The study provides empirical insights into the capabilities and limitations of current Blockchain-based voting systems, emphasizing the critical role of machine learning in enhancing system analysis.

9p viyamanaka 06-02-2025 3 2   Download