Impact Mechanics of Micron Scale Metal Particles Carried by a Supersonic Jet

This work is motivated by the Cold Spray technology which is currently used to deposit thick  metal coatings, with the potential to achieve 3D-printed, load bearing components. We report the deformation characteristic of micron scale (~20 micro meter) metal particles in high velocity impacts (100-1000 m/s) with hard and deformable surfaces. The particles rebound from the hard substrate but … See More

Elastomeric Bouncy Balls – a Module to Connect Real-World Concepts and Current Engineering Research to K-12 Education

The creation of STEM modules that progressively build on an initial foundation and are integrated in a series of stages at different age groups has been recommended as an effective way of incorporating inquiry-based learning into education. This project develops a series of structured inquiry-based experiments that can be incorporated into STEM curricula at four grade … See More

Magnesium Oxide Nanoparticles as a Regenerative CO2 Sorbent

Metal Organic Frameworks (MOFs), constructed by the assembly of metal-containing units with appropriate organic linking groups, are a class of crystalline porous materials.  In recent years, MOFs have captured widespread research interest due to their intriguing structural topologies and potential applications as functional materials in wide fields such as gas storage, separation, catalysis, drug delivery, … See More

Use of Ozone to Remove Soluble Organic Nitrogen and Soluble Organic Phosphorus from Wastewater

Nutrient pollution in surface waters can lead to eutrophication. Since a significant source of nutrients in water comes from wastewater discharges, increasingly stringent limits have been imposed on wastewater treatment plants. To meet these limits, higher-level treatments are needed to remove soluble organic nitrogen (SON) and soluble organic phosphorus (SOP) compounds which are resistant to … See More

Endothelial Glycocalyx Conditions affect Cellular Uptake of Gold Nanoparticles

Cardiovascular diseases are facilitated by endothelial cell (EC) dysfunction and coincide with EC glycocalyx coat shedding. These diseases may be deterred by targeting medications to affected vascular regions using circulating nanoparticle drug carriers.  The objective of the present study was to observe how EC-targeted delivery of 10nm polyethylene glycol-coated gold nanoparticles (PEG-AuNP).  Rat fat pad … See More

A 10-Gb/s Serial-Link Receiver Design for USB 3.1 with a Continuous-Time Linear Equalizer and 1-Tap DFE

This paper presents a wire-line receiver design of CMOS I/O at 10-Gb/s data rate for USB 3.1 standard. A power efficient continuous time linear equalizer (CTLE) and 1-tap look-ahead decision feedback equalizer (DFE) are designed and implemented in a 45nm CMOS technology. The DFE employs a sampler including a current injection section that makes no use of summer as a separated … See More

Aminopolymer Impregnated MCM-36 and the Effect of Pore Structure on CO2 Capture

Porous solid adsorbents are currently being studied for their potential use as an effective way to capture carbon dioxide. These absorbents are known to have high surface areas and low heats of adsorption, making them ideal for capturing carbon dioxide. The perfect adsorbent would possess high amine loading abilities and high adsorption capacity. A 2-dimensional … See More

Developing Plant Tissue Cultures for the Production of Pharmaceuticals

As long as humans have been getting ill, they have been using plants as medicine. Today, plants can be used as production platforms for a range of pharmaceuticals. The plant Catharanthus roseus, or the Madagascar periwinkle, produces the anti-cancer drugs vincristine and vinblastine which cost from $4 – $20 million dollars per kilogram. The overall … See More

Low-Cost Robotic Actuator

Many mobile robots require compact drive systems (actuator/transmission/joint) that deliver high torques through stiff mechanical ports. Conventional drive systems are made from off-the-shelf actuators and transmissions, which are coupled together to power the robot’s joints. This approach has several benefits such as short development time because of the available mechanical components, however, lacks a system-level … See More

Green Synthesis of Cobalt Oxide Nanoparticles from Calcination of a Cobalt Metal Organic Framework

Metal Organic Frameworks (MOFs) are 3-dimensional microporous materials consisting of coordination bonds between transition metal cations and organic linkers. MOFs exhibit many unique characteristics such as well-defined crystallinity, high surface area, large pore volume, and high porosity. Because of their unique structures and compositions, MOFs can potentially be applied to a wide variety of purposes … See More