Ingeniería Industrial

Foreward

2025-06-11T13:47:56-05:00

Impact of operations research on improving the logistics efficiency of companies in Benguela

2025-06-11T13:47:59-05:00

This research evaluated the impact of Operations Research in the optimization of logistics processes in companies in Benguela (Angola). Using a quantitative approach, representative companies from the logistics sector were selected and surveys and record analysis were applied to characterize their processes and detect areas for improvement. Mathematical models of linear programming, simulation and queuing theory were developed to optimize aspects such as route planning, inventory management and resource allocation, calibrated with real data. The results showed that the implementation of these solutions led to significant improvements in logistics efficiency, including reductions in transportation and storage costs, decreased delivery times, and increased product availability. In addition, opportunities were identified to minimize environmental impact through route optimization and cargo consolidation, thus evidencing Operational Research as a key tool for sustainability in this sector.

Aggregate planning for staff and material transportation in the oil and gas sector

2025-06-11T13:48:01-05:00

The objective of this study was to develop an aggregated planning for the transportation of personnel and material in a hydrocarbon sector company, using a company located in Peru as a case study. In the analysis, two key strategies were evaluated: chasing and leveling, applied to different modes of transportation, such as fixed wing, rotary wing, river and land. Through this analysis, it was observed that the chasing strategy proved to be the most appropriate for the company, since it not only presents lower operating costs compared to the leveling strategy but also allows them to meet the monthly demand accurately, which facilitates effective planning for the next year, based on the results obtained from the aggregate planning.

Lean manufacturing and its application in the plastics industry

2025-06-11T13:48:03-05:00

This article comprehensively reviews the implementation and impacts of Lean Manufacturing in the plastics industry, with the aim of synthesizing and evaluating how the adoption of these methodologies has contributed to improving efficiency, reducing costs and optimizing production processes. Using a systematic review methodology, 97 relevant articles were selected. The main results of the review indicate that Lean not only improves operational efficiency and reduces waste significantly, but also encourages the integration of advanced technologies such as Industry 4.0. In addition, a strong focus on sustainability is observed, with Lean facilitating practices that support environmental conservation and carbon footprint reduction. In conclusion, while Lean Manufacturing has proven to be an effective tool for improving operations, its effective implementation requires tailored approaches that consider the cultural and structural particularities of each company.

Impact of electric generators on workers’ hearing: a case study of commercial establishments in downtown Ambato, Ecuador

2025-06-11T13:48:06-05:00

In Ecuador, the dry season in 2024 caused problems at hydroelectric power plants due to the low water flow in the rivers. As a result of power outages, commercial establishments found it necessary to purchase generators to maintain their commercial activities. Noise measurements were conducted in 22 commercial establishments in the city of Ambato. A calibrated professional sound level meter was used for the measurements, revealing that 50% and 60% of the measurements taken in the Mercado Modelo and Teófilo López sectors, respectively, exceeded the 85 dB limit established in Executive Decree 2393. Furthermore, according to information provided by workers, it was determined that the use of electric generators led to ringing in the ears and difficulty concentrating with prevalence rates of 40.9% and 36.4%, respectively, being the most significant adverse effects.

Optimizing After-Sales Services in the Automotive Maintenance Sector: A Lean Manufacturing and MRP Case Study in Peru

2025-06-11T13:48:08-05:00

This research aims to improve productivity and customer satisfaction in the automotive maintenance sector in Peru, which faces problems such as inefficiency in after-sales services and poor inventory management. The methodology involves the integration of lean manufacturing tools—including 5S, material requirements planning (MRP), standardized work, among others. The implementation of these tools seeks to optimize workspace organization, improve inventory management, and streamline service operations. The main results revealed a 20,37 % reduction in downtime, a decrease in stockouts from 11,81 % to 3,58 %, and a reduction in cycle time from 3 hours and 15 minutes to 1 hour and 36 minutes. These advancements contributed to a significant increase in customer satisfaction, as evidenced in the rise of NPS from 46 % to 79 %. Exploring the use of digital technologies such as IoT and AI is suggested to achieve further improvements.

Management model for the application of lean manufacturing tools to reduce returns of incorrect orders in a pharmaceutical company

2025-06-11T13:48:10-05:00

The research seeks to apply lean manufacturing tools to reduce returns of wrong orders, the main problem that affects the company under study, which is a pharmaceutical company. For which it will begin by developing a value stream mapping that determines the waste and the Lean tools to use (5S, SMED and Kaizen). Data analysis was done using inferential statistical techniques, with the objective of testing the proposed hypotheses. For this, an evaluation was carried out to measure reliability and normality. After the application of various improvement tools, each result obtained from January to December 2023 was evaluated. The final result was that the percentage of returns of incorrect orders decreased from 14 % to 7 %. It was concluded that the adoption of Lean tools generated significant advantages for the company, ranging from the detection of inefficiencies, standardization to continuous improvement.

Implementation of lean manufacturing indicators: overall equipment efficiency and the six major losses of maintenance at Pack-Isi company

2025-06-11T13:48:12-05:00

The purpose of this study was to assess both the overall equipment efficiency (OEE) and the six major maintenance losses in a pelletizing machine owned by a plastics company. An improvement plan was established through the development of a root cause analysis. The investigation was conducted between August 5 and 10, 2024. The results indicated an OEE below 80 %, not reaching world class status. It was found that unscheduled and minor stops were responsible for the reduction in global efficiency. The root cause analysis allowed us to establish actions that reduced downtime, unscheduled stoppages, and out-of-specification products, thus increasing quality and productivity.

Evaluation and improvement of inventory management and control in a paint marketing company to reduce waste and loss of products

2025-06-11T13:48:14-05:00

Inventory is a fundamental part of the resource management of any company. There are different, each with specific characteristics and functions according to the needs and objectives of the organization. In this research, tools such as classification by ABC model, establishment of policies and FIFO procedure were applied, allowing an inventory system to be designed for a paint marketing company to have adequate control, classification and rotation of merchandise with the objective of reducing losses. economical for obsolete products. With the analysis of the diagnosis carried out, it was possible to detect more than 100 existing products that were considered obsolete, generating a significant cost for the company. In addition, it was possible to identify nearly 400 products that were poorly located within the warehouse, being able to classify them appropriately. In conclusion, the results showed a significant reduction in the inventory obsolescence rate, going from 1,31 % to 0,34 %.

Effect of the BASC system and its perception on the operational improvement of a logistics services company

2025-06-11T13:48:17-05:00

The Business Alliance for Secure Commerce (BASC) management system is a strategy to strengthen the security and efficiency of companies in the logistics sector by preventing illegal activities such as smuggling and drug trafficking. The problem lies in the need to evaluate its impact on operational efficiency and security. Prior to its implementation, the company had deficiencies in traceability, regulatory compliance and security, and employees did not have a clear understanding of the impact of this system on these aspects. To assess this impact, a mixed methodology was used, combining a document review and a questionnaire structured in five key sections: general data, perception of safety, operational efficiency, regulatory compliance, and challenges and benefits of the system. The results indicate improvements in performance indicators: on-time deliveries increased from 88 % to 96 %, returns were reduced by 51,4 %, fleet downtime decreased by 43,7 %, and occupational accidents decreased by 59 %. These findings demonstrate the tangible benefits of BASC, constituting a benchmark for companies in the sector that seek to optimize their processes, strengthen their safety systems and improve regulatory compliance, contributing to a more competitive environment that strengthens trust with customers and employees.

Design and implementation of an electronic device for reading assistance of printed texts using computer vision for visually impaired people

2025-06-11T16:58:52-05:00

This article presents the design and implementation of an electronic device to assist visually impaired people in reading printed texts. This mechatronic system uses a Raspberry Pi V3 camera mounted on glasses to capture images of printed texts. The images are processed through Optical Character Recognition, and the extracted text is converted to audio using a Text-to-Speech synthesizer, allowing the user to access the visual content audibly. The device is based on a Raspberry Pi 3 Model B+ microcontroller for data management and control of the electronic components. It is designed to be portable, ergonomic, and energy-efficient, with a long-lasting battery.

Study of arsenic adsorption in water using nanocomposite based on magnetite nanoparticles and tara gum

2025-06-11T13:48:22-05:00

One of the pollutants that can be found in water bodies as a result of industrial activity is arsenic. Methods for the removal of this non-metal turn out to be inefficient and expensive. A new nanocomposite based on tara gum and magnetite nanoparticles was prepared for the removal of arsenic from water. The characterization of the nanocomposites prepared with different Fe3O4: tara gum ratios showed the presence of the magnetite phase by XRD and it was also measurement the particle size (13.74 nm) by TEM. The arsenic removal tests in water carried out with the nanocomposites with different magnetite content, pH variation and nanocomposite weight showed that the nanocomposite with 80% by weight of magnetite presented higher efficiency. The maximum values studied for arsenic concentration were 2 ppm, reaching 24.8% removal in 15 minutes of exposure using the nanocomposite with 80% magnetite nanoparticles.