Rice 360˚ Institute of Global Health's student innovators created projects and devices — from disinfecting devices and optimized intubation tools — that respond to challenges presented by COVID-19. Courtesy of Rice University

An annual program with Rice University and its partners in Africa had to do things differently in light of the COVID-19 pandemic. Not only did operations have to shift to a virtual approach, but the projects themselves instead addressed the needs created by the disease.

Rice 360˚ Institute for Global Health, which collaborates with the Malawi University of Science and Technology (MUST) and the University of Malawi, The Polytechnic (Poly), continued their annual programming virtually over six weeks. The collaboration brings students together to solve global health issues, and this year's issue to address was overwhelmingly COVID-19.

"We had to give a lot of thought to whether we might have to cancel the program, and that was really heartbreaking to think about," says Rice 360˚ Director Rebecca Richards-Kortum, professor of bioengineering, in a news release. "Back in those days of late March and early April, I never really imagined how wonderful the virtual internship program could be."

Thirteen undergraduate interns and eight teaching assistants from Rice and Malawi, worked on six different projects, and three were presented in an online event on July 16. Here were the projects that were presented.

  • A disinfecting system that has the capability to sterilize multiple N95 masks at once. The system uses ultraviolet lights that can kill the coronavirus in around 30 minutes. Alternatively, the project included a smaller version that could be powered by solar energy. Yankholanga Pelewelo of MUST, Carolyn Gonawamba of Poly, and Andrew Abikhaled and Bhavya Gopinath of Rice developed the technology.
  • A walk-in decontamination unit that can decontaminate up to 3,000 people per day. The team of interns developed a prototype that consisted of PVC frame covered in plastic with nozzles to spray disinfectant. The project has already received interest from labs and hospitals for the device. Team members included Brenald Dzonzi of Poly, Mwayi Yellewa of MUST, and Kaitlyn Heintzelman, Krystal Cheung, and Sana Mohamed of Rice.
  • A redesigned intubation box that gives doctors better access to patients during the procedure. More than half of the 3,000 health care workers who have died from the coronavirus were doctors who focused on respiratory procedures, the team pointed out, and this daunting fact calls for redesigned tools. In total, the student innovators pitched three different designs that each included armholes in the sides, with a third hole on top to let a clinician or nurse assist with the procedure. The student team consisted of Chikumbutso Walani of Poly, Ruth Mtuwa of MUST, and Lauren Payne and Austin Hwang of Rice.

The other three projects included in the program but didn't present were designs for face shields, a hand sanitizer station and a contactless temperature monitor. All of the projects were led by teaching assistants Aubrey Chikunda and Chisomo Mukoka from MUST; Hannah Andersen, Nimisha Krishnaswamy, Alex Lammers and Ben Zaltsman of Rice; and Hope Chilunga and Francis Chilomo from Poly.

While pivoting the program to virtual comes with its challenges, Maria Oden — a professor of bioengineering, director of Rice's Oshman Engineering Design Kitchen and director of Rice 360˚ — recognizes the opportunities it provides as well.

"It would have been easy and understandable to cancel this internship, but that's not what happened, and look what the result was," Oden says in the release. "Over 90 people have tuned in to see the work of the interns. That's something we've never achieved with our in-person internships. We can learn from this experience."


Rice 360° Virtual Internship Highlights – Summer 2020www.youtube.com

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.