Engineering Commons^™

Supply Chain Management For Superyacht Construction In Taiwan, Chun Pong Wong

Journal of Marine Science and Technology–Taiwan

In the last 20 years, Taiwan’s superyacht construction industry has performed well in the global market; however, numerous yacht builders still practice traditional supply chain management (SCM), which is often inefficient and regularly leads to time and cost overruns. This study aimed to answer two research questions: 1) what SCM challenges does the superyacht construction industry face? and 2) what SCM strategies and practices should be adopted to improve the efficacy and profitability of superyacht construction companies?

Numerous studies have explored supply chains (SCs) and SCM, but few have focused on the superyacht construction industry. Superyacht construction projects are highly …

The Impact Of Variable Curing Conditions On The Properties And Microstructures Of Mixtures Of Ground Granulated Blast Furnace Slag And Circulating Q1 Fluidized Bed Combustion Ash, Shao-Heng Hsieh, Wei-Chung Yeih, Ran Huang

Journal of Marine Science and Technology–Taiwan

The use of Portland cement, an important construction material, is encountering growing challenges because of its adverse environmental impacts. In this study, a new hydration system without Portland cement, which blends ground granulated blast furnace slag (GGBFS) and circulating fluidized bed combustion (CFBC) ash, was developed and tested. The variables included the effect of different types of CFBC ash, the mass ratios between CFBC ash and GGBFS, and different curing temperatures. The mortar properties were determined through the compressive strength test, absorption test, shrinkage test, X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The main results were as follows: …

A Marine Gis-Based Alert System To Prevent Vessels Collision With Offshore Platforms, Sheng-Long Kao, Ki-Yin Chang, Tai-Wen Hsu

Journal of Marine Science and Technology–Taiwan

How to effectively use an intelligent aid-to-navigation (AtoN) to prevent ships from accidentally colliding with offshore marine platforms (OMPs) is an important issue for maritime environment. This study proposes a novel collision alert system with three components to process Automatic Identification System (AIS) data in the cloud and broadcast AtoNs to ships in order to avoid collision with OMPs. The first component receives as input fuzzy linguistic variables (vessel size, relative speed, and approach distance) from the AIS data and calculates the radius of the guarding ring. The second component serves a Marine GIS (MGIS), where the system simulates the …

Energy Optimization By Scratchpad Memory Banking For Embedded Systems, Noha Abuaesh

Archived Theses and Dissertations

No abstract provided.

Texture Classification Using Transform Analysis, Mary Fouad Habib

Archived Theses and Dissertations

No abstract provided.

Fault Tolerant Ethernet Train Network, Mai H.S. Ibrahim

Archived Theses and Dissertations

No abstract provided.

Investigation Of Control Parameters, Strategies, And Transport Modeling For Effective Electrokinetic Nanoparticle Treatment Of Cementitious Materials, Huayuan Zhong

Doctoral Dissertations

Various deleterious chemical species (including sulfates, chlorides, and others) contaminate concrete structures which are inherently porous and thus suffer from compromised durability. Several technologies have been developed for repairing concrete or enhancing the service life. Nevertheless, their efficiency, practicability, and cost can vary widely. Compared with chemical grout, fiber wrap, and traditional repair technology, electrokinetic nanoparticle treatment (EN) has been found to provide remarkable benefits for strength restoration and mitigation of durability problems via porosity reduction. Nanoparticle instability and over dosage issues can arise and lead to problems during treatments. In many cases, these treatment processes have been accompanied by …

Piezoelectric Signals In Vascularized Bone Regeneration, Delfo D’Alessandro, Claudio Ricci, Mario Milazzo, Giovanna Strangis, Francesca Forli, Gabriele Buda, Mario Petrini, Stefano Berrettini, M. Jasim Uddin, Serena Danti, Paolo Parchi

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

The demand for bone substitutes is increasing in Western countries. Bone graft substitutes aim to provide reconstructive surgeons with off-the-shelf alternatives to the natural bone taken from humans or animal species. Under the tissue engineering paradigm, biomaterial scaffolds can be designed by incorporating bone stem cells to decrease the disadvantages of traditional tissue grafts. However, the effective clinical application of tissue-engineered bone is limited by insufficient neovascularization. As bone is a highly vascularized tissue, new strategies to promote both osteogenesis and vasculogenesis within the scaffolds need to be considered for a successful regeneration. It has been demonstrated that bone and …

Approaching Industrial And Environmental Reform For Shaq Al-Thu'ban Marble And Granite Industrial Cluster, Rania Ahmed Hamza Sayed Eid

Archived Theses and Dissertations

No abstract provided.

Flexible Pavement Design Aashto 1993 Versus Mechanistic-Empirical Pavement Design, Ashraf Ayman Aguib

Archived Theses and Dissertations

No abstract provided.

Design And Analysis Of The Virtual Reality Welding Training, Ritesh Chakradhar

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Business and Technology at Morehead State University in partial fulfillment of the requirements for the Degree Master of Science by Ritesh Chakradhar on November 19, 2021.

Optimizing Vaccine Supply Chains With Drones In Less-Developed Regions: Multimodal Vaccine Distribution In Vanuatu, Deng Pan

Dissertations

In recent years, many less-developed countries (LDCs) have been exploring new opportunities provided by drones, such as the capability to deliver items with minimal infrastructure, fast speed, and relatively low cost, especially for high value-added products such as lifesaving medical products and vaccines. This dissertation optimizes the delivery network and operations for routine childhood vaccines in LDCs. It analyzes two important problems using mathematical programming, with an application in the South Pacific nation of Vanuatu. The first problem is to optimize the nation-wide multi-modal vaccine supply chain with drones to deliver vaccines from the national depot to all health zones …

The Three-Year Capstone: A Progression Of Learning In Purdue University’S Theatre Engineering Program, Leigh Witek

Symposium on Education in Entertainment and Engineering

Purdue University’s Theatre Engineering Program capstone combines the yearly production work of the College of Liberal Arts with the final senior design format used in the Colleges of Engineering. By starting their production work after gaining admission to the program, students work on progressively more involved projects throughout their time at Purdue. This poster presentation will examine the lessons learned and challenges faced by Leigh Witek, a recent Theatre Engineering graduate, as she completed each role in the program. She will share how each project informed her understanding of the design process and how a three-year immersion in production work …

Developing Soft Skills With Interdisciplinary Teams In The First Year: Lessons Learned, Christian Rogers

Symposium on Education in Entertainment and Engineering

The academic structure of most universities dictates that a student work with those of their own program and in conjunction with a program that is tangential to theirs. Interdisciplinary educational experiences that provide students with the opportunity to develop soft skills (such as communication, empathy and problem solving) are considered rare but are much more common in the working environment. As an example, working environments such as Universal Creative are comprised of multiple disciplines (i.e. civil engineer, mechanical engineering, illustration, user experience design, etc.) A function of working in an interdisciplinary team can also be to work on unknown or …

Signal Processing Capacity Of The Cellular Sensory Machinery Regulates The Accuracy Of Chemotaxis Under Complex Cues, Hye-Ran Moon, Soutick Saha, Andrew Mugler, Bumsoo Han

Purdue University Libraries Open Access Publishing Fund

Chemotaxis is ubiquitous in many biological processes, but it still remains elusive how cells sense and decipher multiple chemical cues. In this study, we postulate a hypothesis that the chemotactic performance of cells under complex cues is regulated by the signal processing capacity of the cellular sensory machinery. The underlying rationale is that cells in vivo should be able to sense and process multiple chemical cues, whose magnitude and compositions are entangled, to determine their migration direction. We experimentally show that the combination of transforming growth factor-β and epidermal growth factor suppresses the chemotactic performance of cancer cells using independent …

Timing, Latency, And Live Performance, Robert Klimek, Catherine Skokan

Symposium on Education in Entertainment and Engineering

How important is synchronous timing in a performance? In the world of science, engineering and the arts, we cannot avoid it. In the arts, it is a living and vital concept between composer, performer and audience. During the Pandemic, with an increase in virtual meetings and performances, made us more aware of timing issues and introduced us to a path with many questions about latency and affect between audience and performer. The hand waving, head nodding and eye gestures of Renaissance musicians led eventually to the classic conductor’s baton. These all helped ensembles of dissimilar instruments and/or voices, conquer problems …

Catenate: Creating An Interdisciplinary Art Project, Brian Phillips, Melissa Eddings Mancuso, Emma Sherban

Symposium on Education in Entertainment and Engineering

This paper will present the rationale for, the challenges of, and successes encountered in the formation process of an interdisciplinary Visual & Performing Arts Project, Catenate, at Ohio Northern University’s School of Visual & Performing Arts.

A Survey Of Machine Learning Techniques For Video Quality Prediction From Quality Of Delivery Metrics, Obinna Izima, Ruairí De Fréin, Ali Malik

Articles

A growing number of video streaming networks are incorporating machine learning (ML) applications. The growth of video streaming services places enormous pressure on network and video content providers who need to proactively maintain high levels of video quality. ML has been applied to predict the quality of video streams. Quality of delivery (QoD) measurements, which capture the end-to-end performances of network services, have been leveraged in video quality prediction. The drive for end-to-end encryption, for privacy and digital rights management, has brought about a lack of visibility for operators who desire insights from video quality metrics. In response, numerous solutions …

Twisted Laminar Superconducting Composite: Mgb2 Embedded Carbon Nanotube Yarns, Ujjal Lamichhane, Gamage C. Dannangoda, Mkhitar Hobosyan, R. A. Shohan, A. Zakhidov, Karen S. Martirosyan

Physics & Astronomy Faculty Publications

Twisted laminar superconducting composite structures based on multi-wall carbon nanotube (MWCNT) yarns were crafted by integrating magnesium and boron homogeneous mixture into the carbon nanotube (CNT) aerogel sheets. After the ignition of the Mg–B–MWCNT system, under the controlled argon environment, the high exothermic reaction between magnesium (Mg) and boron (B) with stoichiometric ratio produced the MgB2@MWCNT superconducting composite yarns. The process was conducted under the controlled argon environment and uniform heating rate in the differential scanning calorimetry and thermogravimetric analyzer. The XRD analysis confirmed that the produced composite yarns contain nano and microscale inclusions of superconducting phase of MgB2. The …

Improving Project Performance Using Lean Construction In Egypt: A Proposed Framework, Marwa Gamal Swefie

Archived Theses and Dissertations

No abstract provided.

Autonomous Control And Signal Acquisition System, Rion Krampe

Scholars Week

Dr. Bunget has an autonomous control and signal acquisition system that he wants to be repaired and improved upon. This requires that we identify the current issues with the system and repair them as well as make innovations to the system to meet customer needs. The position control needs to be autonomous, and the acquisition of the oscilloscope signal and the transducer position needs to be synchronous. The user should be able to control the position, speed, and how often the signals are captured. The waveform of the scan should be appended into a spreadsheet. The system code also needs …

Finite Element Dynamic Study On Large Framed Foundation Of Steam Turbine Generator, Ahmed Mounir Abou Elsaoud

Archived Theses and Dissertations

No abstract provided.

One Step At A Time: Robotics Lab Team Combines Talents In Quest For The Perfect Synthetic Tendon, Laura Meader

Colby Magazine

When Caitrin Eaton arrived at Colby a year ago, she named her new robotics lab C3PO. The name grabs students’ attention, but they’re drawn to the lab for another reason: Eaton’s cutting-edge research unites engineering and animal physiology to help robots walk more smoothly than Hollywood’s stiff-legged C-3PO robot.

Nonlinear Numerical Modeling Of Reinforced Concrete Panels Subjected To Impact Loads, Sherif Mohamed Shaaban

Archived Theses and Dissertations

No abstract provided.

Visual Quality Integerated Cost Model For Developing Green Neighborhoods: An Optimization Apporoach, Eiman Yehia El-Banhawy

Archived Theses and Dissertations

No abstract provided.

Cashflow Decision Support System For Housing Developers Under Uncertain Buyer Behavior, Akinmoladun Olusola Peter

Archived Theses and Dissertations

No abstract provided.

Evaluation Of Current Egyptian Seismic Code Approach To Estimation Of Lateral Drift: Calibration Of Displacement Amplification Factor For Rc Ordinary Moment-Resisting-Frame Buildings, Soha Hassan Nashaat El-Kassas

Archived Theses and Dissertations

No abstract provided.

Ee-Acml: Energy-Efficient Adiabatic Cmos/Mtj Logic For Cpa-Resistant Iot Devices, Zachary Kahleifeh, Himanshu Thapliyal

Electrical and Computer Engineering Faculty Publications

Internet of Things (IoT) devices have strict energy constraints as they often operate on a battery supply. The cryptographic operations within IoT devices consume substantial energy and are vulnerable to a class of hardware attacks known as side-channel attacks. To reduce the energy consumption and defend against side-channel attacks, we propose combining adiabatic logic and Magnetic Tunnel Junctions to form our novel Energy Efficient-Adiabatic CMOS/MTJ Logic (EE-ACML). EE-ACML is shown to be both low energy and secure when compared to existing CMOS/MTJ architectures. EE-ACML reduces dynamic energy consumption with adiabatic logic, while MTJs reduce the leakage power of a circuit. …

Artificial Intelligence Method For The Forecast And Separation Of Total And Hvac Loads With Application To Energy Management Of Smart And Nze Homes, Rosemary E. Alden, Huangjie Gong, Evan S. Jones, Cristinel Ababei, Dan M. Ionel

Electrical and Computer Engineering Faculty Publications

Separating the HVAC energy use from the total residential load can be used to improve energy usage monitoring and to enhance the house energy management systems (HEMS) for existing houses that do not have dedicated HVAC circuits. In this paper, a novel method is proposed to separate the HVAC dominant load component from the house load. The proposed method utilizes deep learning techniques and the physical relationship between HVAC energy use and weather. It employs novel long short-term memory (LSTM) encoder-decoder machine learning (ML) models, which are developed based on future weather data input in place of weather forecasts. In …

Classification Des Sols Et Sélection Des Systèmes D’Étançonnement Pour L’Excavation Des Tranchées, Bertrand Galy, Denis Lebœuf, Omar Chaallal, André Lan

Rapports de recherche scientifique

Les travaux de fouilles en tranchée exposent les travailleurs à de nombreux risques. L’éboulement est le risque le plus grave et le plus fréquent présent pendant ces travaux, mais hélas, il est très souvent sous-estimé, alors qu’un éboulement mineur de moins d’un mètre cube de terre peut blesser mortellement un travailleur. Une analyse de 50 rapports d’accidents graves et mortels de la Commission des normes, de l’équité, de la santé et de la sécurité du travail (CNESST), survenus entre mai 1974 et juin 2017 lors de travaux d’excavation et de fouilles en tranchées, montre qu’il y a eu 48 décès …