Use Case Model

This paper evaluates an energy harvesting strategy for UAVs from sunlight and laser beams on cloudy days with a low-level cloud layer. The channel models and harvested powers for both cases are considered and analyzed using mathematical equations and simulation results.

7p viengfa 28-10-2024 3 2   Download

The study was carried out by surveying 181 individual customers who are Gen Y and have been using fast food services at fast food stores in Hanoi and using the SERVQUAL model with 5 independent variables: Tangibility, Responsiveness, Assurance, Reliability, and Empathy.

8p vifilm 11-10-2024 1 1   Download

Through the process of analysing related documents and object characteristics in FMCG companies, paper aim to build vehicle roung with me window (CVRTW) model to optimize the delivering process, thus satisfying customer demand. To ensure the quality of the results, the model will be solved using the simulated annealing algorithm (SAalgorithm).

8p vifilm 11-10-2024 1 0   Download

Consumer demand is an important factor in any business, especially in the food retail industry whose products are perishable and have a short life cycle. The daily demand for a food product is affected by external factors, such as seasonality, price reduction and holidays.

8p vifilm 11-10-2024 2 1   Download

The prediction of ground settlement under tunnel excavation is still challenge. Almost engineer uses Mohr-Coulomb model in practice due to the conventional geotechnical investigation data. This paper describes the study of tunnel lining behaviors and ground surface settlement under tunneling process with a typical case study of twin tunnels excavation in Ho Chi Minh city, Vietnam.

11p vibecca 01-10-2024 1 1   Download

This study applies the GRU (Gated Recurrent Unit) model when selecting different values of batch-size, namely 16, 32, and 64, with varying epochs of 20, 50, 100, 150, and 200. The input data comprises observations collected by two GNSS CORS stations from the VNGEONET network, namely HYEN and CTHO, spanning from August 10, 2019, to March 18, 2022.

10p vibecca 01-10-2024 3 1   Download

The objective of the paper was to analyze the factors influencing the purchase intention of consumers for imported beef in Long Bien district, Hanoi. Quantitative and qualitative methods were employed in this study based on an online survey using a structured questionnaire.

16p vibecca 01-10-2024 4 2   Download

Recently, seawater intrusion (SWI) in coastal aquifers is a global issue that is exacerbated by sea-level rise, climate change, and an increasing dependency on coastal fresh groundwater resources for water supply. This paper describes the results of the examination using the GALDIT method as a model to evaluate the vulnerability of seawater intrusion.

12p viyoko 01-10-2024 2 2   Download

This study explored the factors affecting members’ satisfaction with the quality of support activities of cooperatives using data collected from 301 members of horticultural cooperatives in Son La province. The study applied the SEVERQUAL concept and cooperative principles to develop the research model.

14p vibecca 01-10-2024 2 1   Download

In this paper, an artificial neural network (ANN) model was applied to forecast PM2.5 at the Coc Sau open–pit coal mine (Northern Vietnam) with fine–tuning parameters. It aims to provide the feasibility and insights into controlling air quality in open–pit mines using artificial intelligence techniques.

8p viyoko 01-10-2024 0 0   Download

The objective of the study "Smart tourism: A case study of Da Nang city" is to determine the best approaches related to Da Nang’s smart city and smart tourism. By using qualitative research methods of comparing and contrasting some experiences from various smart-tourism models of China and Korea, this study may be able to help Da Nang city improve its image significantly and foster guests’ experiences as well.

13p xuanphongdacy09 29-09-2024 3 1   Download

The purpose of this paper is to study the effects of tax optimization strategies used by Vietnamese companies for earning management through the use of temporary difference between accounting and taxable profit. Following the model of Cindy (2021), we leverage quantitative methods, built models and tested the impact of 08 factors on earning management (EM), tax optimization (ETR), deferred tax asset (DTA), deferred tax liability (DTL), deferred tax expense (DTE), company size (SIZE), financial leverage (LEV), return on assets (ROA), cash flow from operating activities (CFO).

13p viormkorn 27-09-2024 5 2   Download

The objectives of this study are to evaluate the role of land surface, soils and climate characteristics on the groundwater balance within the area of Long Bien district of Hanoi and to answer the question if the expected land cover and land use changes in the near future are critical for sustainable management of groundwater resources in the area.

5p viyoko 24-09-2024 3 0   Download

Exports has played an important role in economic growth in most countriesand territories. The article uses a panel data regression model to analyze the growth of ten provinces in Red River Delta (Vietnam) in the period 2005-2020. The research result shows that there are factors that positively affect the economic growth of Red River Delta, including investment capital (variable LnI), labor (variable LnL), exports (variable LnEx) and price index (variable CPI).

9p toduongg 24-08-2024 4 1   Download

he study is conducted to identify potential applications and to outline the relationships among these applications to develop the use of blockchain in developing agricultural supply chains. The study applies both qualitative and quantitative research methods. First, by referencing current literature and combining in-depth interviews with experts, the research has identified 20 potential blockchain applications for agricultural supply chains. Next, the study obtained remarkable results by surveying 225 individuals/organizations involved in Hue's Melaleuca oil supply chain.

20p toduongg 24-08-2024 2 2   Download

This paper contributes to the literature on the internationalization process of new ICT companies, especially the ride-hailing developer firms. It analyzes the global expansion of UBER in the Asian market. UBER did an aggressive expansion using a standard business model in every market that they get into. The strategy was on scale economy rather than localization of services. The case analysis suggests that UBER was unsuccessful in its global expansion due to a number of factors especially t

7p longtimenosee10 26-04-2024 2 2   Download

Bài giảng "Lưu trữ và xử lý dữ liệu lớn: Chương 4 - Cơ sở dữ liệu phi quan hệ NoSQL (Phần 1)" trình bày các nội dung chính sau đây: Kỷ nguyên của cơ sở dữ liệu, trường hợp sử dụng NoSQL, mô hình dữ liệu quan hệ, kho lưu trữ cơ sở dữ liệu đồ thị;... Mời các bạn cùng tham khảo!

43p gaupanda025 09-04-2024 6 3   Download

Since community buildings are a large group of assets managed by local city councils, current research has the potential to identify asset management deficiencies and assist in improving an integrated management model by: Establishing deterioration trends in building components for community buildings; Validating proposed deterioration using case-study data; Developing a database of costs to facilitate optimisation of maintenance; Developing a methodology to integrate deterioration and cost to optimize maintenance requirements.

186p runthenight05 01-03-2023 6 3   Download

Model Predictive Control (MPC) refers to a class of algorithms that optimize the future behavior of the plant subject to operational constraints. The merits of the class algorithms include its ability to handle imposed hard constraints on the system and perform on-line optimization. This thesis investigates design and implementation of continuous time model predictive control using Laguerre polynomials and extends the design approaches proposed in to include intermittent predictive control, as well as to include the case of the nonlinear predictive control.

162p runthenight07 01-03-2023 9 4   Download

This research achieved its objectives of: Identify key attributes and variables that influences the design of a PPP Project; Identify key actions and events that influence the outcomes generated by a PPP project; Model design attributes and variables, and actions and outcomes found in PPP literature; Evaluate Australian practice as demonstrated in a case study, using the benchmark model; Discuss findings and present conclusions.

146p runthenight04 02-02-2023 3 2   Download