scholarly journals The Effect of Adopting New Storage Methods for Extending Product Validity Periods on Manufacturers Expected Inventory Costs

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Po-Yu Chen
Keyword(s):  
Mathematical Model ◽  
Decision Maker ◽  
Food Product ◽  
Aluminum Foil ◽  
Demand Functions ◽  
Inventory Costs ◽  
Fresh Food ◽  
Cycle Lengths ◽  
Storage Methods ◽  
Glass Packaging

The validness of the expiration dates (validity period) that manufacturers provide on food product labels is a crucial food safety problem. Governments must study how to use their authority by implementing fair awards and punishments to prompt manufacturers into adopting rigorous considerations, such as the effect of adopting new storage methods for extending product validity periods on expected costs. Assuming that a manufacturer sells fresh food or drugs, this manufacturer must respond to current stochastic demands at each unit of time to determine the purchase amount of products for sale. If this decision maker is capable and an opportunity arises, new packaging methods (e.g., aluminum foil packaging, vacuum packaging, high-temperature sterilization after glass packaging, or packaging with various degrees of dryness) or storage methods (i.e., adding desiccants or various antioxidants) can be chosen to extend the validity periods of products. To minimize expected costs, this decision maker must be aware of the processing costs of new storage methods, inventory standards, inventory cycle lengths, and changes in relationships between factors such as stochastic demand functions in a cycle. Based on these changes in relationships, this study established a mathematical model as a basis for discussing the aforementioned topics.

scholarly journals A Model for Selecting a Strategic Information System Using the FITradeoff

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Ana Paula Henriques de Gusmão ◽  
Cristina Pereira Medeiros
Keyword(s):  
Information System ◽  
Information Systems ◽  
Decision Maker ◽  
Additive Model ◽  
New Method ◽  
Strategic Information ◽  
Perceived Need ◽  
Using Data ◽  
Strategic Information System ◽  
Glass Packaging

This paper arose from the perceived need to make a contribution towards assessing a strategic information system by using a new method for eliciting the weights of criteria. This is considered one of the most complex and important stages in multicriteria models. Multicriteria models have been proposed to support decisions in the context of information systems given that problems in this field deal with many conflicting criteria. The new procedure for eliciting the weights of the criteria has the advantage of requiring less effort from the decision-maker and, thus, the risk of inconsistent answers is minimized. Therefore, a model based on this new procedure is proposed and applied using data from a glass packaging factory that needs to select a single information system from a set of systems previously identified as relevant. The results obtained are consistent both with the performance of alternatives and with the additive model used to evaluate the alternatives.

scholarly journals The Study of a Mathematical Model in Information Acquisition and Disclosure

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Ce Huang
Keyword(s):  
Mathematical Model ◽  
Decision Maker ◽  
Information Acquisition ◽  
Disclosure Strategy ◽  
Withholding Information

A mathematical model involving a decision maker and an expert is investigated. Through analyzing the model, we obtain several results on the expert’s information acquisition and disclosure strategy. When withholding information is costly to the expert, in equilibrium, an expert with a higher withholding cost acquires less information but discloses more acquired information. We also examine which expert is optimal to the decision maker among a group of experts with different costs of withholding information.

Application of SARIMAX Model to Forecast Daily Sales in Food Retail Industry

2016 ◽  
Vol 7 (2) ◽  
pp. 1-21 ◽  
Author(s):  
Nari Sivanandam Arunraj ◽  
Diane Ahrens ◽  
Michael Fernandes
Keyword(s):  
Influencing Factors ◽  
Performance Measures ◽  
Moving Average ◽  
Food Product ◽  
Retail Store ◽  
Food Supply Chain ◽  
Sarima Model ◽  
Autoregressive Integrated Moving Average ◽  
Fresh Food ◽  
External Variables

During retail stage of food supply chain (FSC), food waste and stock-outs occur mainly due to inaccurate sales forecasting which leads to inappropriate ordering of products. The daily demand for a fresh food product is affected by external factors, such as seasonality, price reductions and holidays. In order to overcome this complexity and inaccuracy, the sales forecasting should try to consider all the possible demand influencing factors. The objective of this study is to develop a Seasonal Autoregressive Integrated Moving Average with external variables (SARIMAX) model which tries to account all the effects due to the demand influencing factors, to forecast the daily sales of perishable foods in a retail store. With respect to performance measures, it is found that the proposed SARIMAX model improves the traditional Seasonal Autoregressive Integrated Moving Average (SARIMA) model.

scholarly journals Identification of Water Vapour Transmission Rate (WVTR) of Aluminum Foil Packaging Barrier using The Gravimetric Testing Method

2020 ◽  
Vol 6 (1) ◽  
pp. 49-54
Author(s):  
Syafira Syafira ◽  
Supardianningsih Supardianningsih ◽  
Mawan Nugraha
Keyword(s):  
Water Vapour ◽  
Transmission Rate ◽  
Food Product ◽  
Aluminum Foil ◽  
Food Products ◽  
Main Function ◽  
Test Results ◽  
Product Packaging ◽  
Testing Method ◽  
Water Vapour Transmission Rate

The packaging is the most important thing for packing the food product. The main function of packaging is protecting the product from external factors such as light, water vapour, oxygen, and humidity. Sometimes the damage of food products occurs because of the contaminations of water vapour like a clumping on powdered food products. However, aluminum foil is a good barrier to protect food products. The packaging barrier needs to be tested to assure which one is the best to protect food products, especially from water vapour. Water vapour transmission rates are used to test how much the vapour can be absorbed by the packaging and the test results can be used as a reference for product packaging. The identification of water vapour transmission absorbed on the aluminum foil is tested using the gravimetric testing method and refers to the ASTM E96 standard. The result shows the thicker aluminum foil has used to protect the food products, the lower they absorb water vapour.

scholarly journals Adaptación del sistema táctico de inteligencia para la toma de decisiones militares ante una pandemia

2021 ◽  
Vol 12 (26) ◽  
pp. 14-22
Author(s):  
Eider Yovanny Vargas
Keyword(s):  
Mathematical Model ◽  
Decision Maker ◽  
Administrative Support ◽  
Decision Makers ◽  
Rapid Adaptation ◽  
Process Data ◽  
The Face ◽  
Toma De Decisiones ◽  
The Military ◽  
Available Resources

The purpose of this work is to identify a tool that allows a military decision maker at the tactical level to manage the military resources available in the event of a pandemic. The research focused on finding and adapting an epidemiological mathematical model to process data collected in a military jurisdiction and with it the development of prospective scenarios in a military jurisdiction in the event of a pandemic. The results indicate that in the face of a pandemic, military decision makers must have a model of prospective scenarios and the adaptation of the intelligence process, especially the means of searching for information and the recording and analysis instruments to diligently manage the available resources. It is concluded that, given the appearance of a pandemic in a place with geographical conditions that hinder rapid accessibility and administrative support, military decision makers require a procedure that allows rapid adaptation to the new tactical scenario.

On waiting times to populate an environment and a question of statistical inference

1999 ◽  
Vol 36 (1) ◽  
pp. 261-267 ◽  
Author(s):  
F. Thomas Bruss ◽  
M. Slavtchova-Bojkova
Keyword(s):  
Mathematical Model ◽  
Statistical Inference ◽  
Waiting Time ◽  
Branching Process ◽  
Waiting Times ◽  
The State ◽  
Higher Moments ◽  
Total Progeny ◽  
Cycle Lengths ◽  
The Mathematical Model

The mathematical model we consider here is the classical Bienaymé–Galton–Watson branching process modified with immigration in the state zero.We study properties of the waiting time to explosion of the supercritical modified process, i.e. that time until all beginning cycles which die out have disappeared. We then derive the expected total progeny of a cycle and show how higher moments can be computed. With a view to applications the main goal is to show that any statistical inference from observed cycle lengths or estimates of total progeny on the fertility rate of the process must be treated with care. As an example we discuss population experiments with trout.

scholarly journals A Mathematical Model of Communication with Reputational Concerns

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Ce Huang ◽  
Yuanyuan Zhang ◽  
Chong Lai
Keyword(s):  
Mathematical Model ◽  
Decision Maker ◽  
Decision Problem ◽  
The One ◽  
Reputational Concerns

We investigate a mathematical model where an expert advises a decision maker for two periods. The decision maker is initially unsure about whether the expert is biased or not. After consulting the expert on the decision problem of period one, the decision maker updates belief about the expert’s bias and consults the expert on the problem of period two. We find that more information is delivered in the model’s first period than in the one-period situation of communication.

scholarly journals Self-heating behaviour of low moisture content particles—modelling the basket-heating of solid particles and some aspects of the cross over behaviour using milk powder as an example

2001 ◽  
Vol 43 (1) ◽  
pp. 165-181 ◽  
Author(s):  
Xiao Dong Chen
Keyword(s):  
Mathematical Model ◽  
Milk Powder ◽  
Food Product ◽  
Solid Material ◽  
Solid Particles ◽  
Heating Process ◽  
Self Heating ◽  
Sample Water ◽  
The Cross ◽  
Further Development

AbstractSelf-heating in packed paniculate that is exothermically reactive is a major cause of fire and explosion in the powder industry. This study is focused on part of the Auckland development of a mathematical model dealing with this hazardous process in industry using milk powder as an example. Milk powder is a primary powdered food product around the world.An update of the detailed mathematical model is given here, and predictions are made using the model to simulate the basket-heating behaviour of a milk powder in the laboratory (so the model can thus be validated). Basket heating in an oven is a standard laboratory technique for measuring the exothermic reactivity of a solid material.After a favorable comparison with the laboratory results, several aspects of basket-heating were investigated with a view to further improving the technique. Firstly, the model was used to explore the effect of elevated ambient humidity and initial sample water content upon the heating process in the basket. Secondly, the model was used to explore the cross over phenomenon which is related to a novel procedure for measuring activation energy and exothermicity (that is, the Crossing-Point-Temperature (CPT) method, which is a new version of the basket heating technique). The predictions together with the experimental evidence show that the reaction kinetics obtained using the Heat Release (HR) method (another version of the basket heating technique well published in the literature) may not be correct, especially for those measured at elevated oven temperatures and for larger basket sizes. Thirdly, simulations were performed to illustrate that the CPT phenomenon does not just occur at the center of the basket but also occurs everywhere else in the sample. This can become a significant advantage for further development of the CPT method in terms of reducing experimental duration and improving reproducibility.

scholarly journals Analysis of food advertisements on cable television directed to children based on the food guide for the Brazilian population and current legislation

2016 ◽  
Vol 29 (5) ◽  
pp. 721-729 ◽  
Author(s):  
Soraya da Rocha BRITTO ◽  
Renata Furlan VIEBIG ◽  
Juliana Masami MORIMOTO
Keyword(s):  
Food Product ◽  
Brazilian Population ◽  
Fisher Exact Test ◽  
National Council ◽  
Exact Test ◽  
Fresh Food ◽  
Children’S Voices ◽  
Two Parameters ◽  
Advertising Content ◽  
Food Commercials

ABSTRACT Objective: This study examined food product advertisements directed to children and aired on closed television channels in Brazil, according to the types of foods and beverages advertised and the advertising content. Methods: A descriptive study was conducted on the adequacy of food commercials directed to children and aired by six pay-television broadcasters according to two parameters: "The Food Guide for the Brazilian Population, 2014", and the National Council on Children's and Adolescents' Rights Resolution nº 163 of 2014 about food advertising. The advertisements were recorded in July 2015, at different times and days of the week. Results: One hundred and sixty-two hours were recorded, registering 3,468 commercials: 1,850 were related to internal programming and 1,618 advertised toys (22.15%), food and beverages (5.61%), applications for electronic devices (5.58%), and entertainment/events (5.56%). The Fisher exact test showed fewer number of food commercials compared to other types of commercials (p<0.001). The main food items advertised by all television stations were ultraprocessed foods and no advertisements of fresh food were observed (p<0.001). Most of the food commercials (64.30%) used children's language and characters; 43.00% used songs in children's voices, and 21.40% linked gift distribution to food. Conclusion: The number of food commercials observed was lower than in previous national studies. However, the advertisements did not follow current legislation, indicating the abuse of marketing communication to children. More effective public policies and the respect and enforcement of legislation on child advertising could protect children from high consumption of ultraprocessed foods.

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