Industrial and Systems Engineeringhttp://keep.hcmiu.edu.vn:8080/handle/123456789/1632024-03-29T11:04:29Z2024-03-29T11:04:29ZDesign Of Mixed Integer Linear Programming Model For Optimization Of Production- Inventory Systems: A Case Study In Datalogic Vietnam CompanyNguyễn Thị Anh, Thưhttp://keep.hcmiu.edu.vn:8080/handle/123456789/54662024-03-27T02:32:01Z2023-01-01T00:00:00ZDesign Of Mixed Integer Linear Programming Model For Optimization Of Production- Inventory Systems: A Case Study In Datalogic Vietnam Company
Nguyễn Thị Anh, Thư
The production-inventory system has been crucial for operations in determining how much to
produce to fulfill future customer demands while also maintaining as low an inventory level as
possible within a business.
The thesis investigates production-inventory problem of a electronic company. Through
observation at the warehouse and data analysis, the research has established that insufficiency and
overstock have turned into major issues in inventory control. Then, to deal with the complexity of
this problem, a mixed intger linear programming is developed. The proposed model is applied for
Datalogic Vietnam Company, a manufacturing company for electronic products. Moreover, this
model’s objectives are to reduce the total costs down to at least 10-20% and inventory amount at
least 10% as well. The results show the optimization of production-inventory system. In addition,
CPLEX programming was a tool to find the exact solution. Regarding the data collection, a sample
of 12 months with three item categories is used to illustrate the applicability of the proposed
mathematical model which brings out the feasible solutions. Additionally, Microsoft Excel 2016
will be a support tool for analysis.
2023-01-01T00:00:00ZVehicle Routing And Integrated Planning And Scheduling For Perishable Products: A Case Study Of VinamilkLê Thị Xuân, Yếnhttp://keep.hcmiu.edu.vn:8080/handle/123456789/54652024-03-27T02:30:30Z2023-01-01T00:00:00ZVehicle Routing And Integrated Planning And Scheduling For Perishable Products: A Case Study Of Vinamilk
Lê Thị Xuân, Yến
This study addresses the integrated production planning and scheduling problem in
the dairy industry after considering the multi-depot vehicle routing problem. The
research methodology involves implementing a Genetic Algorithm (GA) to minimize
transportation costs by optimizing routes, vehicles, and distances, while ensuring
vehicle capacity limitations. The objective is to determine the appropriate depot for
serving a specific set of customers, while also considering the plant's awareness of
demand fulfillment for each distribution center. The outcomes of the preliminary
phase, utilizing GA, are then used in the subsequent stage, which involves
formulating a Mixed Integer Linear Programming (MILP) model. This model aims to
find an optimal solution that minimizes the total cost, encompassing factors such as
product value deterioration, production, inventory, changeover, waste, overtime,
packaging, incubation operations, and unmet demand. By employing this approach,
the study successfully derives an optimal weekly schedule in a short computational
time.
2023-01-01T00:00:00ZThe Export Performance Determinants Of Bac Lieu’s Shrimp To The Us MarketNgô Nguyễn Khánh, Vyhttp://keep.hcmiu.edu.vn:8080/handle/123456789/54642024-03-27T02:29:11Z2023-01-01T00:00:00ZThe Export Performance Determinants Of Bac Lieu’s Shrimp To The Us Market
Ngô Nguyễn Khánh, Vy
Shrimp is a key export commodity that plays a vital role in the development of the
economy of Vietnam in general and Bac Lieu province in particular. The foremost
markets for Vietnamese shrimp imports are the United States which also accounts for a
lion's share of shrimp export volume and export turn over in Bac Lieu province.
However, in the latest years, the export volume and the export turnover of Bac Lieu
shrimp to that market have not met the setting goals and their growth rate has also
been trending downward. In response to the disappointing export performance, the
study was proposed to investigate key factors affecting the shrimp export performance
which are Firm’s Characteristics, Management Characteristics, Marketing Strategies,
Foreign Market Characteristics, Bilateral factors. The study uses both qualitative and
quantitative methods to collect and analyze data, respectively. The qualitative research
is carried out through direct interviews with 4 civil servants from the Department of
Industry and Trade and the Statistical Office in Bac Lieu, while the quantitative
research is conducted through sending questionnaires to 300 employees from 30
shrimp exporters in Bac Lieu province. Cronbach's Alpha Reliability, Exploratory
Factor Analysis, Confirm Factor Analysis, Pearson Correlation Analysis and Multiple
Linear Regression were used to analyze collected data and test the research hypothesis,
while Bootstrap and Structural Equation Modeling were applied to validate the
estimated result. All suggested statistical techniques were performed on IBM SPSS
Statistics 27 and except for Structural Equation Modeling and Confirm Factor Analysis
were processed on IBM AMOS 20. The outcome of this research has shown that
Firm’s Characteristics, Management Characteristics and Marketing Strategies have a
positive effect on Export Performance, while Foreign Market Characteristics and
Bilateral factors have a negative effect on Export Performance. The factors of
Management Characteristics, Firm’s Characteristics, Marketing Strategies, Bilateral
factors, Foreign Market Characteristics are arranged in the descending order of the
degree of impact to the Export Performance
2023-01-01T00:00:00ZVehicle Routing Problem For Express Delivery In Online-To-Offline Retail – A Case Study Of Cosmetic IndustryTrinh Truong Thao, Vyhttp://keep.hcmiu.edu.vn:8080/handle/123456789/54632024-03-27T02:27:59Z2023-01-01T00:00:00ZVehicle Routing Problem For Express Delivery In Online-To-Offline Retail – A Case Study Of Cosmetic Industry
Trinh Truong Thao, Vy
The rise of innovative technologies that enable seamless information gathering and
efficient communication between customers and online-to-offline (O2O) retailers has
brought about new complexities in devising strategies to meet the demands of real-time,
immediate delivery of online orders. This paper focuses on optimizing the delivery
system by using a Capacitated Vehicle Routing Problem with Time Windows
(CVRPTW) for Hasaki Beauty & Clinic, a cosmetic industry retailer in Ho Chi Minh
City. By leveraging these methods, including Mixed-Integer Linear Programming
(MILP), the proposed model achieves state-of-the-art results when evaluated against
benchmark VRP datasets. Through a comprehensive evaluation utilizing a case study of
Hasaki Beauty & Clinic, the study assesses the effectiveness of the proposed model. The
results offer valuable insights into enhancing transportation logistics in the cosmetic
industry, resulting in improved order fulfillment, cost-efficiency, and overall customer
satisfaction.
2023-01-01T00:00:00Z