Engineering Commons^™

The Ratification And Implementation Of The International Maritime Organisation (Imo) Instruments : A Social And Policy Persepctive On Maritime Governance In Fiji, Miriama Latianara

World Maritime University Dissertations

No abstract provided.

An Analysis Of The Legal And Policy Challenges For Developing Countries In Implementing The Imo’S 2023 Ghg Strategy : A Case Study Of South Africa And Indonesia, Mduduzi Godson Qwabe

World Maritime University Dissertations

No abstract provided.

Decarbonization Of The Fishing Fleet In The Galapagos Islands : Governance Challenges And Opportunities For Implementing Renewable Energy Sources, Byron Eduardo Robles Romero

World Maritime University Dissertations

No abstract provided.

The Problem Of Noise Pollution In Chinese Waters : Can The Current National Legal Framework Tackle The Problem?, Zhou Wang

World Maritime University Dissertations

No abstract provided.

Preparedness And Response To Oil And Biofuel Spills : A Case Study Of The Western Indian Ocean, Soifoine Abdillah

World Maritime University Dissertations

No abstract provided.

Towards Zero Emissions Ports In Saudi Arabia : Drivers, Barriers, And Opportunities, Saad Hulil S Alshahrani

World Maritime University Dissertations

No abstract provided.

Oil Spill Pollution In The Caspian Sea In Case Of Azerbaijan : Evaluating Spill Patterns And Governance Gaps In Azerbaijan’S Marine Oil Pollution Response, Ulviyya Hasanova

World Maritime University Dissertations

No abstract provided.

Assessment Of Recreational Safety Protocols In Philippine Beaches And Resorts : A Coast Guard Perspective, Jazzyneth Cacnio

World Maritime University Dissertations

No abstract provided.

Port State Control In The Philippines : Addressing Challenges And Recommending Pathways For Enhancing Qualification And Operational Effectiveness, Kethlynn Mae Nadal

World Maritime University Dissertations

No abstract provided.

Maritime Risk Management Of Methanol Bunkering : Study On Key Points Of Ship Supervision And Inspection, Baozhong Li

World Maritime University Dissertations

No abstract provided.

Integrating Environmental Impact Assessment Into International Shipping Governance : A Bbnj-Pssa Synergy Framework, Thi Thuy Linh Pham

World Maritime University Dissertations

No abstract provided.

A Study On The Influence Of Ship Type And Size On Co2 Emissions Based On The Eu Mrv Data, Sangdae Seo

World Maritime University Dissertations

No abstract provided.

Occupational Safety In Fishing Vessels : A Comparative Analysis Of Namibia, South Africa And Mozambique In The Sadc Region, Fiina Ndakulilwa Twiihaleni Shaanika

World Maritime University Dissertations

No abstract provided.

Optimization Of Aids To Navigation System In Papua New Guinea, Justus Wayne

World Maritime University Dissertations

No abstract provided.

Assessing Spatial And Temporal Patterns Of Industrial Bottom Trawlers Using Vessel Monitoring System Data : A Case Study Of Ghana, Emmanuel Agbeko

World Maritime University Dissertations

No abstract provided.

Evaluating The Implementation Of The Ballast Water Management Convention In Nigeria : The Possible Contribution Of The Experimentalist Governance Approach, Muhammad Ahmad

World Maritime University Dissertations

No abstract provided.

Assessing Marpol Annex V Port Reception Facilities Of The National Port Of Liberia (Freeport Of Monrovia), Barbara Wade Cummings

World Maritime University Dissertations

No abstract provided.

Legal Analysis On The Use Of Maritime Drones In Law Enforcement Operations, Da Ye Kim

World Maritime University Dissertations

No abstract provided.

An Assessment Of The Impact Of Illegal Sand Mining On The Coastline Of Liberia, Alphena J. Logan

World Maritime University Dissertations

No abstract provided.

Strengthening Thailand’S Ship-Sourced Oil Spill Management : A Comparative Analysis Of Legal And Response Frameworks In Thailand, The United States, And Singapore, Supranee Wattanapongsakul

World Maritime University Dissertations

No abstract provided.

Different Brain Network Connectomic Relationships Subserve Hand Dexterity During Task Versus Resting States In People With Brain Tumors, Timothy F. Boerger, Leon Taquet, Kaitlin Goetschel, Sarah Young, Jennifer Connelly, Jeffrey R. Binder, Brian Schmit, Max O. Krucoff

Biomedical Engineering Faculty Research and Publications

Purpose

The purpose of this study was to explore different brain network connectomic relationships subserving hand dexterity in patients with contrast-enhancing brain tumors during task and resting states.

Method

We measured hand dexterity, resting state functional connectivity, and task-based functional connectivity in 21 participants with newly diagnosed brain tumors. Hand dexterity was measured using the 9-hole peg test (9HPT), and patient-reported outcomes were assessed with the Duroz Hand Index (DHI).

Findings

We discovered the following: (1) The inability to complete dexterous tasks is most associated with low somatomotor-basal ganglia network connectivity during rest but high somatomotor-basal ganglia network connectivity during …

Characterizing Piezoelectric-Blended Polydimethylsiloxane For Use As A Mechanoelectrical Responsive Cell Culture Substrate, Alexis P. Applequist, Lance D. Cordes, Lais A. Ferreira, Kartik Balachandran

Biomedical Engineering Faculty Publications and Presentations

In this study, we developed a piezoelectric-polydimethylsiloxane (pz-PDMS) composite by blending poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) with PDMS to create a biocompatible, mechanoelectrical responsive material. The pz-PDMS was synthesized with varying piezoelectric concentrations (0%, 1%, 3%, and 5%) and characterized for visual properties, mechanical properties, mechanoelectrical sensitivity, and biocompatibility. Compression testing showed no significant change in mechanical strength with the addition of piezoelectric particles, while mechanolectrical sensitivity testing revealed a non-linear increase in voltage response, with 5% pz-PDMS producing the highest sensitivity. Fatigue testing demonstrated no change in sensitivity after 7 days of cyclic displacement. Additionally, microcantilever experiments demonstrated the high fidelity …

Fabrication Of Multimodal Anion Exchange Membrane For Chromatographic Purification Of Full Adeno-Associated Viral Capsids, Xiaolei Hao, Sumith Ranil Wickramasinghe, Xianghong Qian

Biomedical Engineering Faculty Publications and Presentations

A multi-modal anion exchange ligand 2-methyl-phenylimidazole has been successfully functionalized on highly porous electrospun regenerated cellulose membrane substrate for the separation of full and empty adeno-associated viral (AAV) capsids. The functionalized membrane has an average pore size of 0.5 mu m and exhibits both charge and hydrophobic functionality. The ligand is able to distinguish the subtle physio-chemical differences between the full and empty viral capsids. The multi-modal anion exchange membrane is able to separate the full capsids from affinity-captured mammalian AAV2 using both gradient and two-step elution methods with superior performance. A full capsid recovery of 72.9% at 85.3% purity …

Advancing Transportation Decarbonization Through Electrification: Insights From Transit And Rideshare Scenarios, Ajay Ghimire

Theses (2016-Present)

The transportation sector remains a major source of criteria pollutants globally, with passenger vehicles contributing significantly to energy demand. While electric vehicles (EVs) offer a promising path toward energy efficiency, few studies have evaluated their impact at the metropolitan scale using integrated, high-fidelity modeling frameworks. This study investigates the energy implications of rideshare electrification in the Houston metropolitan area using a multi-stage simulation workflow. Travel demand is modeled using POLARIS, an agent-based, activity-based framework; vehicle trajectories are translated into second-by-second speed profiles using SVTrip; and energy consumption and criteria pollutant emissions are estimated using the Autonomie vehicle simulation platform. The …

Adaptive Guard Band And Power Control For Resource Allocation In Mobile And Fixed Mission-Critical Iout Networks, Walid K. Hasan, Iftekhar Ahmad, Quoc Viet Phung, Daryoush Habibi

Research outputs 2022 to 2026

The Internet of Underwater Things (IoUT) is transforming underwater communication by enabling essential mission-critical applications such as precise navigation, emergency response coordination, diver safety, robust security and surveillance systems, and real-time environmental monitoring. However, Underwater Acoustic Communication (UAC), which serves as the primary communication medium for IoUT, experiences substantial challenges, including limited bandwidth availability, severe signal attenuation and Doppler-induced frequency shifts, especially pronounced in mobile underwater environments. These challenges degrade throughput and increase latency, making it difficult to meet the strict delay and reliability demands of mission-critical IoUT applications. Without adaptive solutions, real-time underwater communication remains unreliable and inefficient. This …

Harnessing The Power Of Amphoterically Modified Chitosan Coagulants For Enhanced Polyester Microplastic Fibre Removal From Water, Nimesha Thathsarani, Mohadeseh Najafi, Mehdi Khiadani, Muhammad Rizwan Azhar, Masoumeh Zargar

Research outputs 2022 to 2026

Microplastic fibre (MPF) is the dominant type of microplastic present in water treatment plants’ influent. Coagulation–flocculation followed by sedimentation effectively removes microplastics during pre-treatment; however, conventional inorganic coagulants produce high sludge volume, causing secondary pollution. Chitosan offers a greener alternative but is limited by poor solubility and low molecular weight. In this study, two amphoteric modifications were successfully incorporated into Chitosan, including CMC-CTA, synthesised by modifying carboxymethyl Chitosan (CMC) with 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CTA); and CMC-g-PDMC, synthesised by grafting poly[(2-methacryloyloxyethyl) trimethyl ammonium chloride] (PDMC) onto CMC. Their coagulation performance for MPF removal was assessed by turbidity measurement. The effects …

Influence Of Organic Matter And Mineral Composition On Carbonate Source Rock Wettability: Implications For Co2 Geostorage, Muhammad Usman, Nurudeen Yekeen, Muhammad Ali, Mujahid Ali, Alireza Keshavarz, Stefan Iglauer, Volker Vahrenkamp

Research outputs 2022 to 2026

Wettability is critical in determining carbon dioxide (CO2) behavior during geological sequestration in unconventional reservoirs. Unconventional reservoirs are compositionally heterogeneous, affecting CO2 plume migration, containment security, and storage capacity during geological sequestration. Previous studies on CO2 storage in unconventional reservoirs have primarily attributed to changes in organic matter content; however, this study examines how variations in the mineralogical and organic matter content combined affect wettability in CO2/brine systems under subsurface conditions. Three samples with varied mineralogy and TOC content were selected from a well drilled in Jordan source rocks—an immature analog of marine-derived, carbonate-dominated, Type IIS source rocks. Samples were …

Cost-Optimized Energy Management For Urban Multi-Story Residential Buildings With Community Energy Sharing And Flexible Ev Charging, Nishadi Weerasinghe Mudiyanselage, Asma Aziz, Bassam Al-Hanahi, Iftekhar Ahmad

Research outputs 2022 to 2026

Multi-story residential buildings present distinct challenges for demand-side management due to shared infrastructure, diverse occupant behaviors, and complex load profiles. Although demand-side management strategies are well established in industrial sectors, their application in high-density residential communities remains limited. This study proposes a cost-optimized energy management framework for urban multi-story apartment buildings, integrating rooftop solar photovoltaic (PV) generation, shared battery energy storage, and flexible electric vehicle (EV) charging. A Mixed-Integer Linear Programming (MILP) model is developed to simulate 24 h energy operations across nine architecturally identical apartments equipped with the same set of smart appliances but exhibiting varied usage patterns to …

Mine Tailings As A Sustainable Filler For Asphalt Binder–Mastics: A Review, Daniel O. Oguntayo, Nuha S. Mashaan, Sanjay K. Shukla

Research outputs 2022 to 2026

Sustainability has become a primary focus on a global scale. However, there is a threat to sustainable development due to the substantial generation of waste from urbanization and industrialization. Particularly, the accumulation of mine tailings is a problem, an industrial waste by-product from the mining sector. To support sustainable development and promote circular economy, it is imperative to utilize the materials in the production of asphalt mastics. This review examines the performance of mining waste-modified asphalt binder–mastic to create an idea of what tailings might be used for in subsequent studies. This review contributes to knowledge by consolidating research efforts …

Harmonic Mitigation In Unbalanced Grids Using Hybrid Pso-Ga Tuned Pr Controller For Two-Level Spwm Inverter, Pema Dorji, Taimoor Muzaffar Gondal, Stefan Lachowicz, Octavian Bass

Research outputs 2022 to 2026

This study proposes an integrated control–optimization framework for harmonic mitigation in two-level, grid-connected inverters with battery energy storage operating under unbalanced grid conditions. A proportional–resonant controller in the stationary (Formula presented.) frame and a proportional–integral controller in the synchronous (Formula presented.) frame are compared, with controller gains optimized using PSO, GA, and a hybrid PSO–GA approach. The hybrid method achieves superior trade-offs among THD, convergence speed, and computational effort. For the PR controller, hybrid PSO–GA reduces THD to 1.07%, satisfying IEEE 1547 and IEC 61727 standards, while for the PI controller it achieves 2.70%, outperforming standalone PSO (4.12%) and GA …