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2025

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Articles 181 - 210 of 1415

Full-Text Articles in Mechanical Engineering

Powder Bed Fusion Of Stainless Steel 304l-Nbc Nanocomposite Produced By Ball Milling Method Using A Laser Beam, Khalid Hussain Solangi, Junaid Iqbal Bhatti, Irfan Ali Tunio, Imdad Ali Memon, Temoor Abbas Larik, Lianyi Chen Nov 2025

Powder Bed Fusion Of Stainless Steel 304l-Nbc Nanocomposite Produced By Ball Milling Method Using A Laser Beam, Khalid Hussain Solangi, Junaid Iqbal Bhatti, Irfan Ali Tunio, Imdad Ali Memon, Temoor Abbas Larik, Lianyi Chen

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Metal powders with uniformly dispersed nanoparticles, suitable shape, and size for additive manufacturing (AM) processes are highly demanded. However, it is difficult to manufacture metal matrix nanocomposite powders (MMNCs) with uniform dispersion of nanoparticles, optimized shape, and size. This study used high-energy ball milling to disperse NbC nanoparticles with an average length of 400 nm (ex-situ reinforcement) in a Stainless Steel (SS) 304 L matrix. In detail, SS304L-5wt% NbC powders were ball-milled from 4 to 10 h. The results showed that the milled powder particles experienced significant cold-welding during the milling time of 4–6 h, with a wide size distribution. …


Development Of Green Port Index : A Tool For Assessing Ports Based On Implementation Of Ghg Emission Reduction Measures, Mamadou Lamin Bajo Nov 2025

Development Of Green Port Index : A Tool For Assessing Ports Based On Implementation Of Ghg Emission Reduction Measures, Mamadou Lamin Bajo

World Maritime University Dissertations

No abstract provided.


Feasibility Of Adopting Reformed Methanol–High Temperature Proton Exchange Membrane Fuel Cell Technology For The Propulsion Of Seagoingvessel, Toochukwu Patricia Obasi Nov 2025

Feasibility Of Adopting Reformed Methanol–High Temperature Proton Exchange Membrane Fuel Cell Technology For The Propulsion Of Seagoingvessel, Toochukwu Patricia Obasi

World Maritime University Dissertations

No abstract provided.


Exploring Challenges And Opportunities For Green Shipbuilding In South Africa : A Maritime Energy Management Perspective, Masego Mmamolobye Lucia Mosupye Nov 2025

Exploring Challenges And Opportunities For Green Shipbuilding In South Africa : A Maritime Energy Management Perspective, Masego Mmamolobye Lucia Mosupye

World Maritime University Dissertations

No abstract provided.


An Analysis Of Renewable Energy Capture Utilization For Mpulungu Harbour, Dorica Nayame Nov 2025

An Analysis Of Renewable Energy Capture Utilization For Mpulungu Harbour, Dorica Nayame

World Maritime University Dissertations

No abstract provided.


Examining The Perception Of Maritime Instructors In Upskilling And Reskilling Seafarers Towards Decarbonization, Michelle Margallo Nov 2025

Examining The Perception Of Maritime Instructors In Upskilling And Reskilling Seafarers Towards Decarbonization, Michelle Margallo

World Maritime University Dissertations

No abstract provided.


Enhancing Seafarer Competence In Nigeria : Challenges And Opportunities, Alexander Chike Melifonwu Nov 2025

Enhancing Seafarer Competence In Nigeria : Challenges And Opportunities, Alexander Chike Melifonwu

World Maritime University Dissertations

No abstract provided.


Green Shipping Corridors In West Africa : Overcoming Barriers And Unlocking Opportunities For Maritime Decarbonization, Bismark Owoahene Acheampong Nov 2025

Green Shipping Corridors In West Africa : Overcoming Barriers And Unlocking Opportunities For Maritime Decarbonization, Bismark Owoahene Acheampong

World Maritime University Dissertations

No abstract provided.


Marine Environmental Protection : An Investigation Into Existing Global Laws Addressing Marine Plastic Pollution, Maryland De Castro Nov 2025

Marine Environmental Protection : An Investigation Into Existing Global Laws Addressing Marine Plastic Pollution, Maryland De Castro

World Maritime University Dissertations

No abstract provided.


Human Element And Emerging Technologies : Imo Efforts To Address The Impact Of Digitalization In The Context Of Automation On Board, Eduardo Matías Hidalgo Bassi Nov 2025

Human Element And Emerging Technologies : Imo Efforts To Address The Impact Of Digitalization In The Context Of Automation On Board, Eduardo Matías Hidalgo Bassi

World Maritime University Dissertations

No abstract provided.


Decarbonization And Climate Justice : Challenges And The Effect On Shipowners, Sofiana Kontouri Nov 2025

Decarbonization And Climate Justice : Challenges And The Effect On Shipowners, Sofiana Kontouri

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 Nov 2025

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 Nov 2025

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 Roles And Responsibilities Of Master And Remote Operator In Maritime Autonomous Surface Ship (Mass) Under The Colregs, Yuma Sakamoto Nov 2025

The Roles And Responsibilities Of Master And Remote Operator In Maritime Autonomous Surface Ship (Mass) Under The Colregs, Yuma Sakamoto

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 Nov 2025

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 Nov 2025

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 Nov 2025

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

World Maritime University Dissertations

No abstract provided.


Assessment Of Recreational Safety Protocols In Philippine Beaches And Resorts : A Coast Guard Perspective, Jazzyneth Cacnio Nov 2025

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

World Maritime University Dissertations

No abstract provided.


Maritime Risk Management Of Methanol Bunkering : Study On Key Points Of Ship Supervision And Inspection, Baozhong Li Nov 2025

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 Nov 2025

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 Nov 2025

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.


Optimization Of Aids To Navigation System In Papua New Guinea, Justus Wayne Nov 2025

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 Nov 2025

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 Nov 2025

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.


Legal Analysis On The Use Of Maritime Drones In Law Enforcement Operations, Da Ye Kim Nov 2025

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 Nov 2025

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 Nov 2025

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.


Wind Farm Dynamics Over A Diurnal Cycle: Analysis Of A Comprehensive Large-Eddy Simulation, Web-Services Accessible Dataset, Shuolin Xiao, Xiaowei Zhu, Ghanesh Narasimhan, Dennice F. Gayme, Charles Meneveau Nov 2025

Wind Farm Dynamics Over A Diurnal Cycle: Analysis Of A Comprehensive Large-Eddy Simulation, Web-Services Accessible Dataset, Shuolin Xiao, Xiaowei Zhu, Ghanesh Narasimhan, Dennice F. Gayme, Charles Meneveau

Mechanical and Materials Engineering Faculty Publications and Presentations

The atmospheric boundary layer undergoes significant changes throughout a diurnal cycle, affecting wind turbine performance and wakes in wind farms. Wind farm large-eddy simulations (LES) under such conditions provide rich datasets to study the underlying dynamics and identify important trends. Here, we describe a comprehensive open dataset generated using LES of an eight-turbine wind farm consisting of four rows of two turbines. To avoid specifying either prescribed surface temperature or heat flux, a local one-dimensional soil heat conduction model is used with time-periodic solar surface heating, coupled to LES. After several days of low-resolution LES, an approximately time-periodic behavior is …


Cal Poly (Cp) Legged Robot, Sebastian Barboza, Jonathan Mchale, Isabella Sorensen, Isaac Golan Nov 2025

Cal Poly (Cp) Legged Robot, Sebastian Barboza, Jonathan Mchale, Isabella Sorensen, Isaac Golan

Mechanical Engineering

The Navy spends $60 billion annually on dangerous ship maintenance performed by sailors. To save lives and resources, the Naval Surface Warfare Center (NSWC) is looking for robots to replace sailors and navigate ships to perform various tasks. Robots with tracks and wheels have been most recently explored by NSWC, however they have encountered significant problems navigating the ships, especially through naval ship doorways with a significant ledge. By using a legged robot, our team hopes to solve these problems and have a robot that can navigate the ship with relative ease and stability.


The Role Of Atmospheric Turbulence On Cloud Droplet Distribution And Droplet Impaction On An Airfoil, Arash Shad, Hashnayne Ahmed, ‪Nadim Zgheib, S. Balachandar, S. A. Sherif Nov 2025

The Role Of Atmospheric Turbulence On Cloud Droplet Distribution And Droplet Impaction On An Airfoil, Arash Shad, Hashnayne Ahmed, ‪Nadim Zgheib, S. Balachandar, S. A. Sherif

Mechanical Engineering Faculty Publications

We conduct turbulence-informed Euler–Lagrange simulations of droplet-laden flow to examine the effects of atmospheric turbulence on droplet impingement characteristics on a NACA 0012 airfoil. We implement statistical overloading, whereby we inject millions of droplets, ranging in diameter from 1 to 160 microns, upstream of the airfoil at an average streamwise velocity of 120 m/s. Within a fraction of a second, these droplets would have either impinged on the airfoil or continued downstream. While the incoming air flow is maintained uniform, droplet injection is informed by ambient turbulence, affecting both the droplet velocity distribution as well as the size-dependent preferential concentration …