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Articles 1 - 8 of 8
Full-Text Articles in Mechanical Engineering
Depressurization Characteristics Of Steam-Based Reciprocating Vacuum Pump, Hongling Deng
Depressurization Characteristics Of Steam-Based Reciprocating Vacuum Pump, Hongling Deng
Dissertations
This dissertation introduces a novel vacuum technology that leverages low-pressure saturated steam and cooling-controlled condensation, offering an efficient way to utilize low-grade thermal energy sources like waste heat, steam, or solar energy. At the heart of this technology is a unique duo-chamber vacuum pump system, featuring a reciprocating piston and a heat-conductive wall, designed to generate a vacuum through steam-condensation and cooling processes.
The core of this research lies in developing and validating mechanistic models for the steam-condensation depressurization process, a complex phenomenon involving phase change and transport mechanisms. Prior to this work, these mechanisms were not sufficiently modeled or …
Quantifying Balance: Computational And Learning Frameworks For The Characterization Of Balance In Bipedal Systems, Kubra Akbas
Quantifying Balance: Computational And Learning Frameworks For The Characterization Of Balance In Bipedal Systems, Kubra Akbas
Dissertations
In clinical practice and general healthcare settings, the lack of reliable and objective balance and stability assessment metrics hinders the tracking of patient performance progression during rehabilitation; the assessment of bipedal balance plays a crucial role in understanding stability and falls in humans and other bipeds, while providing clinicians important information regarding rehabilitation outcomes. Bipedal balance has often been examined through kinematic or kinetic quantities, such as the Zero Moment Point and Center of Pressure; however, analyzing balance specifically through the body's Center of Mass (COM) state offers a holistic and easily comprehensible view of balance and stability.
Building upon …
Importance Of Vegetation In Tsunami Mitigation: Evidence From Large Eddy Simulations With Fluid-Structure Interactions, Abhishek Mukherjee
Importance Of Vegetation In Tsunami Mitigation: Evidence From Large Eddy Simulations With Fluid-Structure Interactions, Abhishek Mukherjee
Dissertations
Communities worldwide are increasingly interested in nature-based solutions like coastal forests for the mitigation of coastal risks. Still, it remains unclear how much protective benefit vegetation provides, particularly in the limit of highly energetic flows after tsunami impact. The present thesis, using a three-dimensional incompressible computational fluid dynamics model with a fluid-structure interaction approach, aims to quantify how energy reflection and dissipation vary with different degrees of rigidity and vegetation density of a coastal forest.
In this study, tree trunks are represented as cylinders, and the elastic modulus of hardwood trees such as pine or oak is used to characterize …
Building Rotary Fans, Admin Stem For Success, Natalie Wilson
Building Rotary Fans, Admin Stem For Success, Natalie Wilson
STEM for Success Showcase
Students are challenged to build a working rotary fan
Bridge Building, Admin Stem For Success
Bridge Building, Admin Stem For Success
STEM for Success Showcase
Students learn about different bridge styles and designs in this activity that challenges them to build their own successful bridge.
Rubber Band Car Activity, Admin Stem For Success, Natalie Wilson
Rubber Band Car Activity, Admin Stem For Success, Natalie Wilson
STEM for Success Showcase
Student learn about forces and engineering by designing a car powered by rubber bands
Dash And Dot Robots, Admin Stem For Success, Natalie Wilson
Dash And Dot Robots, Admin Stem For Success, Natalie Wilson
STEM for Success Showcase
Activity plan using robots to teach students engineering and technology
Bubble Wand Activity, Admin Stem For Success
Bubble Wand Activity, Admin Stem For Success
STEM for Success Showcase
Students use this activity to practice their engineering skills by building a bubble wand.
Activity Video Link: https://www.youtube.com/watch?time_continue=15&v=wx0-NrAnE6c&feature=emb_logo