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Full-Text Articles in Engineering

Regression Analysis Of Pacing When Running A Marathon, Hawkin Starke May 2021

Regression Analysis Of Pacing When Running A Marathon, Hawkin Starke

Industrial Engineering Undergraduate Honors Theses

Regression analysis can be an effective way of examining performance in the marathon event. By splitting up the race into segments or in runner terminology “splits” the significance of each segment as it relates to the total finish time can be explored. Because the idea of splits is already ingrained into the minds of runners, it makes intuitive sense to use these as the metrics to define a race. Additionally, marathons generally make participant age and gender date publicly available which can then be used to find trends within specific demographics. This tailors trends to smaller groups of people, making ...


Decision Making Within An Nfl Context Using Multiple Objective Decision Analysis, Lawson Porter May 2021

Decision Making Within An Nfl Context Using Multiple Objective Decision Analysis, Lawson Porter

Industrial Engineering Undergraduate Honors Theses

The National Football League (NFL) is the most popular sports league in the world, with millions of viewers every game and billions of dollars generated every season. Statistics are an important part of an NFL team’s business operating model and contribute greatly towards their decision making. Every season, general managers try to sign players that give the team the highest probability of winning games throughout the year. There are many factors that go into this decision, including the amount of money the team has to spend and the value that available players can bring to a team. Teams must ...


Quantifying The Benefits Of A Collaborative Supply Chain Network Using A Discrete-Time Vehicle Routing Model, Matthew Walters May 2021

Quantifying The Benefits Of A Collaborative Supply Chain Network Using A Discrete-Time Vehicle Routing Model, Matthew Walters

Industrial Engineering Undergraduate Honors Theses

The transportation industry contributed around one trillion dollars to the economy in 2016 accounting for 8.9% percent of the GDP. In 2017, it was responsible for 1.5 billion tons of CO2 emissions. With the American Trucking agency predicting a 35% growth in the trucking industry between 2016 and 2027, there are rising concerns about the impact the trucking industry will have on the economy and the environment. The trucking industry is also very inefficient with many trucks driving with empty loads or with less than full capacity loads. There is potential to save billions of dollars and ...


Locating Drone Battery Supply Stations To Facilitate The Delivery Of Medical Supplies In Low And Middle-Income Countries, Madeline Suellentrop May 2021

Locating Drone Battery Supply Stations To Facilitate The Delivery Of Medical Supplies In Low And Middle-Income Countries, Madeline Suellentrop

Industrial Engineering Undergraduate Honors Theses

In the sub-Saharan region of Africa, the inability to perform emergency blood transfusions due to an inadequate blood supply has led to high fatality rates, especially among women and children. The prevalence of disease in this region limits the supply of local blood donations and, if blood is imported, then the region’s poor infrastructure inhibits fast distribution. There is a need for a technological update in the current process that overcomes the limitations of regional transportation, and drones present one promising solution for delivering small, lightweight items such as blood units. The current focus of this new delivery method ...


Improving Logistics Efficiency Through Collaborative Truck Routing, Patrick Dougherty May 2021

Improving Logistics Efficiency Through Collaborative Truck Routing, Patrick Dougherty

Industrial Engineering Undergraduate Honors Theses

The logistics industry is among the world’s largest and most essential. Specifically, trucking is a massive component of the modern logistics system. In 2012, truck transportation carried 68% of all freight tonnage in the U.S. However, trucking currently faces significant problems with efficiency and sustainability. Of all miles driven by trucks yearly in the U.S., 25% are driven with empty loads and 36% are driven with underutilized loads. In addition to this economic inefficiency, the industry faces social and environmental challenges. Driver turnover rates are near 100%, and trucking accounts for a significant level of greenhouse gas ...


Cost Functions Of Crabs: Applications Of Hermit Crab Shell Exchange Behavior To Vacancy Chain Modelling, Hannah Miele Apr 2021

Cost Functions Of Crabs: Applications Of Hermit Crab Shell Exchange Behavior To Vacancy Chain Modelling, Hannah Miele

Senior Honors Theses

Vacancy chain systems function as a method of resource distribution in domains such as housing and labor markets. Hermit crabs also employ vacancy chains as a method of shell exchange. Application of vacancy chain modelling in engineering has been attempted, but numerous flaws exist in the developed vacancy chain scheduling algorithm. This work addresses the lack of an appropriate vacancy chain cost function by developing a generalizable cost function based on hermit crab shell exchange behavior. The cost function’s purpose is enabling development of realistic engineering experiments and models based on real-world vacancy chain systems.


A Dynamic Programming Approach To Determine Optimum Modularity Level In Industrial Packaging, Marshal Louie, Kumar B Mar 2021

A Dynamic Programming Approach To Determine Optimum Modularity Level In Industrial Packaging, Marshal Louie, Kumar B

Journal of Applied Packaging Research

Modular packaging facilitate customization for accommodating variable product sizes in a product family. When determining package sizes for product variability, packaging engineers does not find difficulty to determine package dimension for less product variety whereas if the product variety is more, then determining the dimension of modular package involves complex decision-making and time-consuming process to find the optimal solution. This in turn directly impacts the overall lead time of the supply chain. Thus, in this paper a dynamic programming is developed to determine the quantity and dimension of modular packages for every demand of assorted products sizes. The program helps ...


Do Your Projects Support Your Strategy? Applying Benefits Realization Management, Phil Jones Mar 2021

Do Your Projects Support Your Strategy? Applying Benefits Realization Management, Phil Jones

Operations Management Presentations

In this webinar, foundational concepts of Benefits Realization Management will be presented and discussed. Benefits Realization Management (BRM) is a both a discipline and a process used to align projects undertaken by an organization with the organization’s strategy and culture.


Closed-Loop Supply Chain Network Design Under Uncertainties Using Fuzzy Decision Making, Zhengyang Hu, Viren Parwani, Guiping Hu Mar 2021

Closed-Loop Supply Chain Network Design Under Uncertainties Using Fuzzy Decision Making, Zhengyang Hu, Viren Parwani, Guiping Hu

Industrial and Manufacturing Systems Engineering Publications

The importance of considering forward and backward flows simultaneously in supply chain networks spurs an interest to develop closed-loop supply chain networks (CLSCN). Due to the expanded scope in the supply chain, designing CLSCN often faces significant uncertainties. This paper proposes a fuzzy multi-objective mixed-integer linear programming model to deal with uncertain parameters in CLSCN. The two objective functions are minimization of overall system costs and minimization of negative environmental impact. Negative environmental impacts are measured and quantified through CO2 equivalent emission. Uncertainties include demand, return, scrap rate, manufacturing cost and negative environmental factors. The original formulation with uncertain ...


Agile Thinking And Innovative Technology Development, Rocky Gay Feb 2021

Agile Thinking And Innovative Technology Development, Rocky Gay

Operations Management Presentations

Agile Project Management approaches have grown beyond software development and are being incorporated in many industries at a rapid pace. This expansion has created a need for a common language and methodology that fosters self-organized collaboration and an innate desire to deliver products that maximize customer satisfaction. There are a broad range of tools and techniques nested in a framework that facilitate a flexible and steady cadence of product delivery. Organizations have options in managing projects. Shifting to an agile mindset, values and principles may necessitate a culture change in project teams.


Mapping Of The Information Flow Of The Valle Occidental Coffee Region: A System-Of-Systems Perspective, Irene Campos Feb 2021

Mapping Of The Information Flow Of The Valle Occidental Coffee Region: A System-Of-Systems Perspective, Irene Campos

CESUN Conference

Uncertainty is a characteristic of many of the contemporary environments that our systems inhabit. In the case of farming systems, uncertainty has always been present in the form of unpredictable weather conditions, disease outbreaks and evolving societal and economic factors. Uncertainty poses a challenge for communication and information alignment, which is especially important for a farming system responding to disasters. A first step towards finding solutions for problems of information alignment in systems is mapping and identifying information links in them. The goal of this research is to map the information flow and feedback dynamics of the Valle Occidental coffee ...


Structural Identification And Damage Detection In Bridges Using Wave Method And Uniform Shear Beam Models: A Feasibility Study, Mehran Rahmani, Manan Naik Feb 2021

Structural Identification And Damage Detection In Bridges Using Wave Method And Uniform Shear Beam Models: A Feasibility Study, Mehran Rahmani, Manan Naik

Mineta Transportation Institute Publications

This report presents a wave method to be used for the structural identification and damage detection of structural components in bridges, e.g., bridge piers. This method has proven to be promising when applied to real structures and large amplitude responses in buildings (e.g., mid-rise and high-rise buildings). This study is the first application of the method to damaged bridge structures. The bridge identification was performed using wave propagation in a simple uniform shear beam model. The method identifies a wave velocity for the structure by fitting an equivalent uniform shear beam model to the impulse response functions of ...


Better And Faster: How To Leverage Award-Winning Operations Management Techniques, Carrie Beam Jan 2021

Better And Faster: How To Leverage Award-Winning Operations Management Techniques, Carrie Beam

Operations Management Presentations

The INFORMS Franz Edelman Award for Achievement in Advanced Analytics, Operations Research, and Management Science identifies innovative applications of operations management in fields as diverse as sewer district management, school bus scheduling, polio vaccinations, and of course transportation. In this seminar, 2021 Edelman Prize Chair Dr. Carrie Beam will introduce the keys of stakeholder engagement, iterative development, and scaled-up implementation of operations management techniques and how they apply to the Franz Edelman Award and to MSOM courses.


Diseño De Un Prototipo De Sistema De Información Empresarial Para La Gestión Del Conocimiento En Una Mipyme Familiar Del Sector Ferretero En Bogotá, Nicolás Méndez Jiménez, Jonhatan Stiven Olarte Forero Jan 2021

Diseño De Un Prototipo De Sistema De Información Empresarial Para La Gestión Del Conocimiento En Una Mipyme Familiar Del Sector Ferretero En Bogotá, Nicolás Méndez Jiménez, Jonhatan Stiven Olarte Forero

Ingeniería Industrial

En Colombia las micro, pequeñas y medianas empresas - MiPymes constituyen más del 95% del total de negocios establecidos y absorben más del 85% del empleo total en la mayoría de los países de la región (Banco Interamericano para el Desarrollo, 2010); el 65% de estas empresas son familiares, pero solo el 13% logra sobrevivir a primer cambio generacional. Entre otros aspectos, porque la gestión del conocimiento y el manejo de la información en estas organizaciones familiares se ve centralizado por la primera generación de la empresa: el(los) Fundador(es). La teoría de la gestión del conocimiento promueve que este ...


Programación De Un Job Shop Flexible En Un Taller De Mecanizado, Juan Camilo Báez Godoy, Daniel Felipe Barrera Oliveros Jan 2021

Programación De Un Job Shop Flexible En Un Taller De Mecanizado, Juan Camilo Báez Godoy, Daniel Felipe Barrera Oliveros

Ingeniería Industrial

En el presente proyecto de grado se realiza una detallada propuesta de una heurística para el proceso de programación de tareas en la producción de un taller de mecanizado al utilizar modelos matemáticos para minimizar el tiempo de terminación de las tareas. El desarrollo de la investigación estará basado en los datos de una empresa de metalmecánica, la cual posee un taller dedicado a fabricar moldes para maquinas inyectoras de productos de plástico. El taller posee cinco máquinas CNC y cerca de 20 órdenes de trabajo durante la semana. Para la ejecución del proyecto se inicia con la definición del ...


Diseño Del Proceso De Transformación De Café Molido En La Vereda Potrerillos Municipio De Guadalupe Mediante Economías De Escala, Sebastián Mora Cadena, Néstor Yesid Rivera Cuervo Jan 2021

Diseño Del Proceso De Transformación De Café Molido En La Vereda Potrerillos Municipio De Guadalupe Mediante Economías De Escala, Sebastián Mora Cadena, Néstor Yesid Rivera Cuervo

Ingeniería Industrial

En la vereda Potrerillos, municipio de Guadalupe, departamento del Huila, las familias cultivadoras de la zona solo se encargan del proceso productivo del cultivo de café, generando una ausencia de transformación y desarrollo de productos. A partir de la problemática de la no transformación este grupo pretende desarrollar procesos de manufactura a través de economías de escala, generando un método de producción diferente a método tradicional, lo que proporciona una capacidad de transformación productiva mayor, permitiendo que se de valor agregado en el desarrollo del proceso productivo de café molido; con la ingeniería de procesos se realizará el diseño de ...


Diseño De Un Proceso Productivo Inclusivo Para Jóvenes Con Síndrome De Down De La Academia Down Ritmo Vivo De La Ciudad De Bogotá, Hannah Gabriela Sánchez Angulo Jan 2021

Diseño De Un Proceso Productivo Inclusivo Para Jóvenes Con Síndrome De Down De La Academia Down Ritmo Vivo De La Ciudad De Bogotá, Hannah Gabriela Sánchez Angulo

Ingeniería Industrial

En Colombia, son escazas las posibilidades y oportunidades de formación y empleabilidad para la población con síndrome de Down, situación que se ve reflejada en la poca formación en el ámbito laboral. El proyecto propuesto busca generar una alternativa de inclusión laboral a los jóvenes con esta condición a partir de procesos de formación integral basados en la estrategia de Neuro arte incorporada a la Academia Down Ritmo Vivo. El propósito fundamental de este proyecto se centra en el diseño de un proceso productivo inclusivo para jóvenes con síndrome de Down, mayores de 18 años y pertenecientes a la organización ...


Modelo De Ruteo Para La Planeación De La Distribución De Papa En Neiva Desde La Central De Surabastos Usando Técnicas Cuantitativas, Julio Andrés López Pinzón, Jessica Lorena Martínez Leitón, Astrid Viviana Naranjo Abril Jan 2021

Modelo De Ruteo Para La Planeación De La Distribución De Papa En Neiva Desde La Central De Surabastos Usando Técnicas Cuantitativas, Julio Andrés López Pinzón, Jessica Lorena Martínez Leitón, Astrid Viviana Naranjo Abril

Ingeniería Industrial

En el presente proyecto se aborda el sistema de distribución de la ciudad de Neiva (Huila) desde la central de abastecimiento Surabastos hasta los distintos clientes ubicados en la ciudad para uno de los productos con mayor demanda en el centro de abastecimiento, la papa. Esto debido a que se observó que la distribución realizada actualmente desde la central de abastecimiento es llevada a cabo de manera independiente por cada cliente de manera que, no se cuenta con un control sobre la cantidad de papa que es distribuida, los camiones presentan un porcentaje bajo de su capacidad de utilización y ...


Sustainability Key Performance Indicators For Mass Customization, Md Fahid Hasan Pulak Jan 2021

Sustainability Key Performance Indicators For Mass Customization, Md Fahid Hasan Pulak

Graduate Theses, Dissertations, and Problem Reports

Today’s manufacturers are striving towards a more sustainable and customized product offering in their value chain to satisfy customer demand and compete on the marketplace. By adopting sustainability practices, companies are not only complying with environmental regulations but are strategically addressing the triple bottom line (TBL) of sustainability (environmental, social, and economic). Similarly, mass customization allows a company to better satisfy their customers by creating individualized products economically. Moving forward, it is important to better understand the relationship of these two competitive strategies. In order to assess the sustainability performance of mass customization, it is important to understand the ...


Online Fulfillment: F-Warehouse Order Consolidation And Bops Store Picking Problems, Wen Zhu Dec 2020

Online Fulfillment: F-Warehouse Order Consolidation And Bops Store Picking Problems, Wen Zhu

Dissertations

Fulfillment of online retail orders is a critical challenge for retailers since the legacy infrastructure and control methods are ill suited for online retail. The primary performance goal of online fulfillment is speed or fast fulfillment, requiring received orders to be shipped or ready for pickup within a few hours. Several novel numerical problems characterize fast fulfillment operations and this research solves two such problems. Order fulfillment warehouses (F-Warehouses) are a critical component of the physical internet behind online retail supply chains. Two key distinguishing features of an F-Warehouse are (i) Explosive Storage Policy – A unique item can be stored ...


Method For Obtaining Resource-Saving Air Filtering Materials, Xurramov Gulovich Muxtor Ph.D Docent, Xurramova Sevara Dec 2020

Method For Obtaining Resource-Saving Air Filtering Materials, Xurramov Gulovich Muxtor Ph.D Docent, Xurramova Sevara

Acta of Turin Polytechnic University in Tashkent

Abstract - The article discusses a method of obtaining air filtering material from natural polymer fruits of the luffa plant. The filtering material has better performance characteristics and can replace imported counterparts. The quality of air purification in the filter can be adjusted by the number of wound layers of filter material.


Calculation Of The Power Of The Undulating Surface Of The Screw Conveyor For Cleaning Lint, Sabrina Mukhamedjanova Dec 2020

Calculation Of The Power Of The Undulating Surface Of The Screw Conveyor For Cleaning Lint, Sabrina Mukhamedjanova

Acta of Turin Polytechnic University in Tashkent

В статье представлены результаты расчета параметров шнекового конвейера с волнистой длиной шнека для транспортировки и очистки хлопка. Представлен аналитический метод определения силы вытягивания ворса по волнистой поверхности винта. Значения параметров волнообразной поверхности шнекового транспортера рекомендуются.


Optimal Mammography Schedule Estimates Under Varying Disease Burden, Infrastructure Availability, And Other Cause Mortality: A Comparative Analyses Of Six Low- And Middle- Income Countries, Shifali Shifali Dec 2020

Optimal Mammography Schedule Estimates Under Varying Disease Burden, Infrastructure Availability, And Other Cause Mortality: A Comparative Analyses Of Six Low- And Middle- Income Countries, Shifali Shifali

Masters Theses

Low-and-middle-income countries (LMICs) have a higher mortality-to-incidence ratio for breast cancer compared to high-income countries (HICs) because of late-stage diagnosis. Mammography screening is recommended for early diagnosis, however, current screening guidelines are only generalized by economic disparities, and are based on extrapolation of data from randomized controlled trials in HICs, which have different disease burdens and all-cause mortality compared to LMICs. Moreover, the infrastructure capacity in LMICs is far below that needed for adopting current screening guidelines. This study analyzes the impact of disease burden, infrastructure availability, and other cause mortality on optimal mammography screening schedules for LMICs. Further, these ...


Size And Cost Reduction Of The Antenna 3000, Mario Mignott, Austin Deaver, Josh Madaris Dec 2020

Size And Cost Reduction Of The Antenna 3000, Mario Mignott, Austin Deaver, Josh Madaris

Senior Design Project For Engineers

For our senior design project, we have partnered with Compass Technology Group to improve its Antenna 3000 manufacturing process. The Antenna we are working on is not actually called this, but due to NDA regulations, we will disguise it as the Antenna 3000. This will include finding a way to minimize material costs and labor hours involved to assemble this product together. Our minimum success criteria will be to reduce both the manufacturing time and materials' cost by 20%. Our primary approach to solving this problem will be to implement Lean Six Sigma practices such as the DMAIC principle.

Using ...


Bullwhip Effect Of A Closed Leep Supply Chain With And Without Information Sharing Of Customer Demand, Jui-Hsin Hsu Dec 2020

Bullwhip Effect Of A Closed Leep Supply Chain With And Without Information Sharing Of Customer Demand, Jui-Hsin Hsu

Theses and Dissertations

In recent years, companies have become interested in a closed-loop supply chain that is concerned with the recovery pipeline. The expenses of a company can be influenced by large inventories and backlogs due to the bullwhip effect in the supply chain. Previous literature has shown that the bullwhip effect can be decreased by a reverse supply chain. This paper develops a closed-loop supply chain including seven echelons for recovery of end-of-life products. The model considers the order-up-to inventory policy and the exponential smoothing forecasting with a trend method in the system to assist in determining the ordering quantities. The best ...


Math Models And Heuristic Methods For Constructing Fair Political Districts, Roya Ghorashi Dec 2020

Math Models And Heuristic Methods For Constructing Fair Political Districts, Roya Ghorashi

Theses and Dissertations

Political parties’ attempts to manipulate district boundaries in order to gain political advantages in the election system lead to huge inefficiency and unfair election results. Previously some studies have developed methods for forming political districts considering various factors such as population equality, compactness, and contiguity; but only a few recent studies have considered political fairness as an objective for redistricting political map.This study attempts to find a solution to draw political districts using political fairness as a factor in addition to integrity, population equality, contiguity, and compactness of the districts in order to prevent gerrymandering. In this research, we ...


Operational Decision-Making In Healthcare Using Control Charts, Rohan More Dec 2020

Operational Decision-Making In Healthcare Using Control Charts, Rohan More

Master's Theses

The primary objective of this thesis was to design a framework supplemented with guidelines for the healthcare managers to select an appropriate type of control chart for operational decision-making. A systematic literature review was conducted to gauge the extent to which control charts were being used in a healthcare setting for clinical decision making and operational decision-making purposes. The findings showed that the application of control charts was almost equal for the clinical decision-making sector and the operational decision-making sector. On further analysis, the ability of control charts to function as a standalone tool was affirmed by the vast majority ...


An Investigation On The Effectiveness Of A Problem Structuring Method In A Group Decision-Making Process, Ying Thaviphoke Dec 2020

An Investigation On The Effectiveness Of A Problem Structuring Method In A Group Decision-Making Process, Ying Thaviphoke

Engineering Management & Systems Engineering Theses & Dissertations

There is no shortage of methods to address messy problems. A messy problem is a system of problems with multiple stakeholders who may hold different views of what is feasible or desirable. Decision-makers in a messy problem are prone to committing an error – especially the Type III error. One of the ways to mitigate the chance of committing the error in a messy problem is to reach a group consensus. Problem Structuring Methods (PSM) are the collections of participatory modeling methods that aim to tackle a messy problem. Despite the positive reports, literature indicates some challenges and criticisms of the ...


Parametric Study Of Residual Stresses In Wire And Arc Additive Manufactured Parts, Hisham Khaled Jamil Abusalma Dec 2020

Parametric Study Of Residual Stresses In Wire And Arc Additive Manufactured Parts, Hisham Khaled Jamil Abusalma

Mechanical & Aerospace Engineering Theses & Dissertations

Wire and Arc Additive Manufacturing (WAAM) is a cost-effective additive manufacturing process due to its capability to fabricate large metal parts with high deposition rate and low equipment cost. Although this method is gaining popularity in manufacturing industry, more research is needed to understand process parameters’ effects on residual stress (RS) distribution and part distortion. As such, a 3D thermo-elastic-plastic transient model was established in ABAQUS and employed to investigate the effect of process parameters such as the torch speed, the deposition power and the interlayer dwell time on RS distribution and distortion in WAAM part. The numerical model utilized ...


Comparison Of Classification Algorithms And Undersampling Methods On Employee Churn Prediction: A Case Study Of A Tech Company, Heather Cooper Dec 2020

Comparison Of Classification Algorithms And Undersampling Methods On Employee Churn Prediction: A Case Study Of A Tech Company, Heather Cooper

Master's Theses

Churn prediction is a common data mining problem that many companies face across industries. More commonly, customer churn has been studied extensively within the telecommunications industry where there is low customer retention due to high market competition. Similar to customer churn, employee churn is very costly to a company and by not deploying proper risk mitigation strategies, profits cannot be maximized, and valuable employees may leave the company. The cost to replace an employee is exponentially higher than finding a replacement, so it is in any company’s best interest to prioritize employee retention.

This research combines machine learning techniques ...