scholarly journals The Assessment of the suitability of reconfigurable design through simulation and decision trees

2020 ◽  
Vol 5 (9) ◽  
pp. 1027-1030
Author(s):  
Ricardo Irving Ramirez Guzman ◽  
Mario Luis Chew Hernández ◽  
Mtro. Leopoldo Viveros Rosas ◽  
Ricardo Rodríguez Figueroa

Positioning of the equipment of a manufacturing company is done foreseeing that it will remain fixed for a long time. This is because changes in the plant layout are thought to be costly, as they involve redesigning equipment support services, developing new foundations, using heavy machinery to move equipment, and causing non-productive time at the plant. However, the increased competition due to globalization, lead us to consider the alternative of making modifications to the layout more frequently to improve productivity. Changing the position of the equipment can be facilitated by specifying smaller mobile process equipment or by anticipating the availability of services at different points in the workshop and the existence of cranes or other means of transportation. These forecasts, logically, result in a greater investment in elements that, at least initially, do not generate any profit. This work shows the evaluation of the feasibility of modifying the positions of the equipment when there are variations in the probability distribution in production speeds. This evaluation is carried out using decision trees and process simulation. The case study addressed consists of a generic production line with serial workstations. Jobs arrive at the first computer and join their product on hold if space is available, otherwise the job is lost. In the same way, the product on hold of the other teams are limited in size, and when a product on hold is full, the team behind stops until there is space available. Due to the use, the speeds of the equipment are changing with respect to the ones they had when new: the process times are increasing and / or becoming more variable. To improve productivity under the new process speeds, the space between the equipment can be modified, however, during this change, production must be suspended. This work shows how, by simulating processes and decision trees, it is possible to determine the ranges of values ​​of the suspension time and the cost of transport for which it is convenient to make changes in the spacing of the equipment.

2020 ◽  
Vol 20 (2) ◽  
pp. 11-17
Author(s):  
A. Ewusi ◽  
J. Seidu

Rehabilitation works were carried out on boreholes in the Dunkwa Mining town in the Central Region of Ghana. These works were carried out because the boreholes had lost their original yields due to clogging, corrosion and encrustation and had been abandoned for a long time. The cost of drilling a new well and assessing the productivity of the well is $4,500 which is more expensive that carrying out rehabilitation works which is cheaper, about $800. Also, the initial yields of the boreholes were very high according to the feasibility report which is not a common characteristic of the rocks in the area. Camera inspection followed by rehabilitation, pre and post pumping tests were carried out to assess whether there has been an improvement in their yield after the exercise and that the yield obtained will be adequate for a water supply design. Results show that all the boreholes had an improvement in their yields (57.19 - 259.80 %) after the rehabilitation. It can therefore be concluded that rehabilitation is effective in restoring boreholes to their original yields. Organisations drilling boreholes to communities can take advantage of rehabilitation of the existing boreholes located in the communities which are high yielding, thereby reducing project implementation cost. Keywords: Borehole Rehabilitation, Borehole Yields, Borehole Camera Inspection, Pumping Test


2021 ◽  
Vol 9 (4) ◽  
pp. 561
Author(s):  
Meliani Indah Sari ◽  
Dyah Aring Hepiana Lestari ◽  
Wuryaningsih Dwi Sayekti

This study aims to analyze the process production of sausage noodle roll, the income and production costs, the marketing action and determine the position based on the life cycle of sausage noodle roll as well learn the role of supporting service for sausage noodle roll in CV Cucurutuku Ceria. This research method is a case study. The determination of consumer samples is taken by Convenience Sampling. Analysis of the data used in this research is descriptive qualitative and quantitative analysis. The data of this study was collected in May 2019 until June 2019. The results showed that the value R/C>1, that means sausage noodle roll business was profitable. Calculation of the cost of production on sausage rolls noodles amounted to Rp1,046.53. The BEP unit calculation has been achieved for a long time, in the amount of 42,791 units from the BEP calculation of 604 units. The noodle rolls sausage has also obtained a profit from the selling price of Rp ,000.00 per pcs from the calculation of the BEP price of Rp1,238.58 per pcs. The marketing mix that has been utilized by CV Cucurutuku Ceria is collaboration with e-commerce companies namely gofood and grabfood to facilitate consumers in the ordering process and CV Cucurutuku Ceria has utilized social media as promotional activities for sausage noodle roll product. In the product life cycle, sausage noodle roll are in a stage of decline. CV Cucurutuku Ceria has not fully utilized the government policies regarding the protection and empowerment of Micro, Small and Medium Enterprises.Keywords: cost, noodle, position, and sausage


2015 ◽  
Vol 19 (02) ◽  
pp. 1550022 ◽  
Author(s):  
THOMAS LAGER ◽  
KENT TANO ◽  
NIKOLA ANASTASIJEVIC

In the process industries, it is rather uncommon for companies to develop new process technology or even to manufacture new process equipment. As a result, they are highly dependent upon various kinds of equipment suppliers in their effort to acquire new process equipment in order to improve their operating performance. Two previously presented theoretical frameworks for collaboration during the innovation and operations stages have been merged for use as a research instrument in a single case study on the collaboration between a mineral producing company and a supplier of technology and equipment. The evidence from this study shows that it is beneficial for collaborating partners to engage in upfront discussions of pros and cons before entering collaborations. Collaboration during the "innovation stage" was determined to be an interesting avenue to follow for both parties. The need for collaboration during the production stage seemed to be most important during the "start-up" and "optimisation and upgrading" phases. The combined frameworks have proven to be a powerful research instrument for studying the selected kind of collaboration.


Author(s):  
Agung Yudha Berliantara

ETL scheduling is a challenging and exciting issue to solve. The ETL scheduling problem has many facets, one of which is the cost of time. If it is not handled correctly, it may take a very long time to execute and inconsistent data in very large data. In this study using Round-robin algorithm method that proved able to produce efficient results and in accordance with conventional methods. After doing the research, the difference between these two methods is about execution time. Through this experiment, the Round-robin scheduling method gives a more efficient execution time of up to 61% depending on the amount of data and the number of partitions used.


2021 ◽  
Vol 5 (4) ◽  
pp. 1250-1261
Author(s):  
Rein Rumbiak ◽  
◽  
Lulus Sedavit ◽  
Sumiyati Tuhuteru

Agricultural cannot development without the support of the economic sector, especially industry, in this case the development of the agricultural product processing industry (agro-industry) is one of the priorities in national development in industrial sector. Tofu processing business income is very dependent on the selling price of the product and the costs incurred to produce tofu, the higher the product selling price and the lower the cost, the higher the business income. This study aims to determine the level of profit obtained by each industry that has been operating for a long time. The research was conducted in July - September 2018, on the tofu industry in Wamena City. The method used is a case study method with the type of data collected including primary data and secondary data. The data analysis method uses Cost Analysis, Revenue Analysis, and Income Analysis. The results showed that the tofu "Tahu Tempe Jaya" industry was not profitable, compared to the tofu "Tahu Ayu Rezeki" industry which was profitable.


Author(s):  
Leila Zahedi ◽  
Ming Lu

A novel labour-hour budgeting methodology is proposed by integrating productivity concepts in project scheduling and budgeting to enhance the accuracy of labour cost budgeting for planning labour-intensive projects. The proposed methodology applies discrete event simulation approach to represent crew formation, labour resource utilization and labour resource flowing between consecutive activities, which allows for quantitatively characterizing the impact of labour semi-productive time on labour cost budgeting as a time-dependent variable. Simulation-based assessment of variations in crew sizes and labour allocations is conducive to reducing semi-productive time and thus enhancing the cost performance of the whole project. The proposed methodology is then applied in a real-world case study for planning steel girder fabrication projects in construction of highway bridges. Not limited to budgeting for labour resources in construction-oriented fabrication facility, the research contributions are also significant to other construction planning settings where limited resources are shared and utilized among different activities.


2015 ◽  
Vol 667 ◽  
pp. 562-567
Author(s):  
Chun Xia He ◽  
Luo Ming Zhang ◽  
Xiao Dong Wang

In order to ensure the medicinal efficacy and improve the production efficiency, design and production of a kind of microwave vacuum drying medicine extract new technical equipment. Through analyzing the principle of material characteristics of traditional Chinese medicine extract, drying, microwave vacuum drying, Design of microwave vacuum drying chamber, cylinder body, a door body, a material system. Based on the overall scheme, the main structure parameters were calculated, and the production of a set of test equipment, the dehydration rate test. The new process equipment efficiency, reduces the cost, the volume is greatly reduced, keep the efficacy, and has the functions of sterilization, especially suitable for the production of proprietary Chinese medicines industry.


2020 ◽  
Vol 14 (4) ◽  
pp. 499-506
Author(s):  
Atanas Kochov ◽  
Aleksandar Argilovski

This paper presents a case study that is focusing on the improvement of the process of materials handling in real manufacturing company. Before the implementation of this project, the company was in a concerning state of incidents and learning events towards the ergonomics, health and safety of the operators who manually handled materials as part of their daily activities. It was proposed to use the Six Sigma framework in order to improve the process or design new process for performing the task that included manual handling of materials. In this study, through selecting suitable Six Sigma framework, mapping the current process, setting key performance indicators and using various design tools and techniques, process improvement is proposed; it will solve the problem, increase ergonomics and safety, but also increase the speed of the process and reduce the cost of spilled materials that were manually handled.


Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 314
Author(s):  
Adrián Alcolea ◽  
Javier Resano

A decision tree is a well-known machine learning technique. Recently their popularity has increased due to the powerful Gradient Boosting ensemble method that allows to gradually increasing accuracy at the cost of executing a large number of decision trees. In this paper we present an accelerator designed to optimize the execution of these trees while reducing the energy consumption. We have implemented it in an FPGA for embedded systems, and we have tested it with a relevant case-study: pixel classification of hyperspectral images. In our experiments with different images our accelerator can process the hyperspectral images at the same speed at which they are generated by the hyperspectral sensors. Compared to a high-performance processor running optimized software, on average our design is twice as fast and consumes 72 times less energy. Compared to an embedded processor, it is 30 times faster and consumes 23 times less energy.


2010 ◽  
Vol 14 (04) ◽  
pp. 655-682 ◽  
Author(s):  
DAVID RÖNNBERG SJÖDIN ◽  
P. E. ERIKSSON

The development and installation of new process equipment in production plants typically require strong collaborative efforts by a process firm and its equipment suppliers. However, existing knowledge about how such supplier integration and open innovation practices should be organized and managed is scarce. The purpose of this investigation is therefore to explore how process firms can organize and manage supplier integration and open innovation practices when developing and installing new process technology. By means of a literature review and a case study of two process firms, a lifecycle perspective on procurement is adopted. Our results show that the process firms utilize different interconnected cooperative procurement procedures in different stages of the equipment's lifecycle, in order to enhance integration both in buyer-supplier dyads and among the suppliers in the project network. The contributions of the paper are summarized and illustrated in a developed lifecycle-based procurement model that guides practitioners in organizing and managing supplier integration and open innovation practices.


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