Other Engineering Commons^™

Enabling The Integration Of Sustainable Design Methodological Frameworks And Computational Life Cycle Assessment Tools Into Product Development Practice, Tejaswini Chatty

Dartmouth College Ph.D Dissertations

Environmental sustainability has gained critical importance in product development (PD) due to increased regulation, market competition, and consumer awareness, leading companies to set ambitious climate targets . To meet these goals, PD practitioners (engineers and designers) are often left to adapt their practices to reduce the impacts of the products they manufacture. Literature review and interviews with practitioners show that they highly valued using quantitative life cycle assessment (LCA) results to inform decision making.

LCA is a technique to measure the environmental impacts across various stages of a product life cycle. Existing LCA software tools, however, are designed for dedicated …

Mathematical Description Of A Bleach Impregnation Reservoir, Bekobod Ibragimov

Chemical Technology, Control and Management

This article discusses the issues of constructing a mathematical model of the technological process of bleaching textile materials in an impregnating reservoir using the heat balance equation, on the basis of which a qualitative analysis of the dynamic properties of an object has been carried out in order to create highly efficient control systems with the use of energy-saving technologies. While constructing a mathematical model characterizing the established and non-established modes of the control object (impregnating reservoir) used changes in heat flow and mass velocity of the incoming tissue. An algorithm for constructing a mathematical model of the process of …

Advanced Biomedical Laboratory (Abl) Synergy With Communication, Robotics, And Iot, Razvan Cristian Voicu, Steven Steele, Jorge Diaz Rodriguez, Yusun Chang, Chan Ham

Symposium of Student Scholars

This paper proposes a framework for integrating IoT and automation in a biomedical laboratory to improve safety, optimize processes, and enhance students' learning experience. The framework incorporates a centralized control unit and distributed subsystems to control equipment and machinery and includes autonomous robotics and intelligent monitoring systems. The paper presents the results of undergraduate students' work on automating various biomedical processes, including developing an Intelligent Autonomous Monitoring (IAM) device. IAM utilizes machine learning algorithms to identify outliers in processes and safety hazards. Moreover, IAM autonomously detects and localizes biomedical tools and equipment. Results show the feasibility of delivering real-time results …

Ransomware Attacks In The Software Supply Chain: A Review Of Attack Vectors, Defenses And Gaps, Corey Brookins, Ava Norouzinia, Asia Shavers, Miranda Dominguez, Marie Nassif, Kenneth Burke, Shamar Lake

Symposium of Student Scholars

The proliferation of cyberattacks in the software supply chain domain is a pressing concern making them a formidable threat to software security and compromising its integrity and credibility which needs to be critically acknowledged and investigated. The lack of familiarity with the design and pattern of emerging attacks has contributed to the occurrence of several vulnerable software supply chain attacks in the preceding years. This project aims to conduct a comprehensive study of the various tactics and techniques employed by cybercriminals in this domain along with a focus on exploring the influence of software supply chain stakeholders’ traits, limitations, and …

Optimization Of Material Flow Of Woodshop Through Layout Redesign, Madison Wegner

Honors Theses

A local high-design outdoor site furniture company – Landscape Forms – worked with the senior design team to create alternative layouts for the woodshop within the company. This senior project will offer three categories of alternative layouts: short, mid, and long term. By offering multiple time frame layouts, Landscape Forms will be able to implement changes based on time frame and need. A project plan indicates all tasks required to meet these objectives as well as a timeline for accomplishing this plan. Research including worker movement diagrams, stakeholder interviews incorporating woodshop employees and engineers, a man and machine utilization study, …

Law Informs Code: A Legal Informatics Approach To Aligning Artificial Intelligence With Humans, John J. Nay

Northwestern Journal of Technology and Intellectual Property

Artificial Intelligence (AI) capabilities are rapidly advancing. Highly capable AI could cause radically different futures depending on how it is developed and deployed. We are unable to specify human goals and societal values in a way that reliably directs AI behavior. Specifying the desirability (value) of AI taking a particular action in a particular state of the world is unwieldy beyond a very limited set of state-action-values. The purpose of machine learning is to train on a subset of states and have the resulting agent generalize an ability to choose high value actions in unencountered circumstances. Inevitably, the function ascribing …

Defining Safe Training Datasets For Machine Learning Models Using Ontologies, Lynn C. Vonder Haar

Doctoral Dissertations and Master's Theses

Machine Learning (ML) models have been gaining popularity in recent years in a wide variety of domains, including safety-critical domains. While ML models have shown high accuracy in their predictions, they are still considered black boxes, meaning that developers and users do not know how the models make their decisions. While this is simply a nuisance in some domains, in safetycritical domains, this makes ML models difficult to trust. To fully utilize ML models in safetycritical domains, there needs to be a method to improve trust in their safety and accuracy without human experts checking each decision. This research proposes …

A Simulation Study Of Surfactant/Foam Processes In Shallow Subsurface Remediation: Using Foams For Mobility Control Vs. Blockage, Betty Cepeda

LSU Master's Theses

Many shallow ex-situ and in-situ remediation treatments come from the contamination of underground soils and groundwater sources by organic hydrocarbon components called non-aqueous phase liquids (NAPLs). These contaminants, if leaking, can impose long-term threats causing environmental and health concerns. One of the versatile in-situ remediation techniques is using surfactant/foam processes that can overcome subsurface heterogeneity and improve NAPL removal.

This simulation study investigates surfactant/foam processes, especially focusing on two different roles of foams during the treatment: foams for “mobility control” vs. foams for “blocking”. The first is based on the actual operations carried out in the pilot-test site for 23 …

Nonlinear Spectral Unmixing Using Semi-Supervised Standard Fuzzy Clustering, Shaheera Rashwan

International Journal of Image Processing and Vision Science

Coarse resolution captured in remote sensing causes the combination of different materials in one pixel, called the mixed pixel. Spectral unmixing estimates the combination of endmembers in mixed pixels and their corresponding abundance maps in the Hyper/Multi spectral image. In this paper, a nonlinear spectral unmixing based on semi-supervised fuzzy clustering is proposed. First, pure pixels (endmembers) using Vertex Component Analysis (VCA) are extracted and those pixels are the labelled pixels where the membership value of each is 1 for the corresponding endmember and 0 for the others. Second, the semi-supervised fuzzy clustering is applied to find the membership matrix …

Approach To Problem Solving And Use Of Intuition By Engineering Technology Students, Meher R. Taleyarkhan, Anne M. Lucietto, Natalie L. F. Hobson, Therese M. Azevedo

Journal of Global Education and Research

Engineering technology students often forgo a methodical approach of solving or answering questions on assignments or exams in favor of an intuition-based approach, emphasizing educated guessing (Broberg et al., 2008). Faculty observations have noted these student solutions often provide explanations, usually sans calculations, to support answers the students believe to be reasonable when in reality deviated from the correct answer. An extensive study was developed to assess several distinctions between student intuition and use of cognition in problem solving, as related to a generalized student population. The study was comprised of a survey and interview. The survey utilized two instruments, …

Fire Life Safety Design Of Technology Office, Jared Ellis

Fire Protection Engineering: Culminating Experience Project Reports

The subject building is an approximately 180,000 SF technology office; the location and some details are omitted for privacy of the project and client. It is a 3-story heavy timber frame (Type IIIA) over 1 level of concrete basement stepped into a hillside.

The building is compliant with the prescriptive building code for egress, fire alarm, and fire sprinkler systems. A NFPA 72 compliant fire detection, notification and communication system is provided. The building is fully sprinklered with a system that is hydraulically designed per NFPA 13, 2016 Section 11.2.3 Water Demand Requirements – Hydraulic Calculation Methods. Water supply is …

Gömböc The Great, Indigo M. Strickert, Lori E. Bradford

The STEAM Journal

A sonnet written about the mathematics behind the self-righting shape of some tortoise shells.

Creatively Making Through Failure, Spencer W. Ashnault

CAFE Symposium 2023

This work of art is a 3D Map of Rome, Italy that uses laser cutting and 3D printing techniques to create. The project and technique is explained by the artist and author Spencer Ashnault.

The Effect Of Foam Configuration On The Cushion Performance, Xiaojing Liu, Min Degruson

Journal of Applied Packaging Research

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This research exhibits the cushion design process for protecting a product during the distribution environment and examines the effect of the final design by ISTA 1A drop tests. Currently, few research on the principles of cushion design in protective packaging has been undertaken. Rare research on cushion configuration and its performance. The study started with proposed several cushions distribute layouts - face pad, edge pad, and corner pad, along one orientation. Samples were tested, analyzed, and compared by static compress and dynamic drop tests. After manufacturing and engineering consideration were involved, two improved cushion configuration designs were applied to …

Structural Integrity Analysis Of The Rig Mast Following Repair Of Two Diagonal Braces In The Upper Mast Section, Rendhatya Padmodwiputra, Johny Wahyuadi Soedarsono, Mirza Mahendra, Bambang Eka Satria, Chandra Arif, Eka Juni Suarthana

Journal of Materials Exploration and Findings (JMEF)

During a move to the new drilling location, two braces of the upper mast section on a 550 HP oil and gas rig was damaged. When damage is discovered, the rig operating company should conduct a risk analysis related to the damage using the standard used to determine rejection criteria and follow-up repairs. The strength of the rig mast is calculated using Finite Element Analysis (FEA) with initial conditions (before damage occurs) where all braces are installed and extreme conditions where neither brace is repaired. The calculation results are then used to assess the risk of reducing the rig mast …

Amphisbaenian Head Movement And Burrowing Forces In Damp Granular Media, Jacob Newell

Williams Honors College, Honors Research Projects

Damp granular media is a difficult environment to study because it is both practically complex and it lacks equations which fully describe its behavior. In this study, an oscillatory lateral head movement and its effects while penetrating damp granular media were tested using a robophysical model. This experimental research was inspired by the burrowing behavior of the clade Amphisbaenia, a group of usually limbless squamates that employ a variety of different burrowing behaviors, but it can apply to a wide range of burrowers. This research could help with both human burrowing technologies and the further investigation of animal behaviors.

Owasp Zap Vs Snort For Sqli Vulnerability Scanning, Christopher Kalaani

Electronic Theses and Dissertations

Web applications are important to protect from threats that will compromise sensitive information. Web vulnerability scanners are a prominent tool for this purpose, as they can be utilized to find vulnerabilities in a web application to be rectified. Two popular open-source tools were compared head-to-head, OWASP ZAP and Snort. The performance metrics evaluated were SQLi attacks detected, false positives, false negatives, processing time, and memory usage. OWASP ZAP yielded fewer false positives and had less processing time. Snort used significantly fewer memory resources. The internal workings of ZAP’s Active Scan feature and Snort’s implementation of the Boyer-Moore and Aho-Corasick algorithms …

Dynamic Distributed Energy Resources For Expansion Of Ontario’S Greenhouse Sector, Lysandra Naom

Electronic Theses and Dissertations

The vegetable greenhouse sector is rapidly growing and adopting technology advances like supplemental lighting. Supplemental lighting has a dynamic impact on the demand and consumption of a greenhouse’s electricity load. There is uncertainty on the rate of adaptation of technologies and the impact this could have on the power consumption of the sector. Without electricity availability, the sectors innovation and expansion can come to a halt. This research focused on investigating greenhouse electrical load models and lighting trends to forecast demand on electricity grids and discover potential for Distributed Energy Resource (DER) applications.

This thesis presents a series of studies …

A Literature Review On Privacy And Security In Virtual Reality And Augmented Reality, Yunus Gumbo

Master of Science in Information Technology Theses

As technologies become more advanced and powerful each day, the progression towards embracing virtual reality environments in our daily activities become more real, and subsequently, the boundaries between virtual and physical worlds more in question. However, several issues continue to persist as the world around us changes – privacy and security. In this paper we are going to analyze in detail, the newer virtual reality (VR) and augmented reality (AR) applications, the privacy risks associated with these environments, current solutions – their benefits and challenges as well as potential newer solutions which can be implemented to increase privacy protection.

There …

Putting The Coronavirus To Work: Developing A Global Engineering Program During A Pandemic, Cynthia S. Chalupa

Journal of International Engineering Education

In the aftermath of COVID-19 shutdowns at campuses across the U.S. in the spring of 2020, student enrollments have fallen and budgets have been severely constrained. To counteract the current and long-term repercussions of the pandemic on institutions of higher education, administrators have called for innovative program development and strategic transformation. In the past, many engineering and world languages departments may have considered the task of creating a collaborative degree program insurmountable or undesirable despite existing models that are successful (e.g. University of Rhode Island’s IEP program). In the era of COVID-19, however, innovative programs combining language with disciplines outside …