Static Electricity Makes Window Defrosting More Energy Efficient

Airplanes are typically defrosted using antifreeze spray.

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Static electricity has the potential to eliminate up to 75% of frost from surfaces, which could lead to significant energy savings and a reduction in the millions of tons of antifreeze currently utilized for vehicle defrosting.

In 2021, Jonathan Boreyko and his team at Virginia Tech serendipitously discovered that frost becomes electrically charged during its formation. They successfully employed this natural electric field to charge an adjacent water film, which could effectively dislodge ice crystals from the frost as a natural deicing agent. However, the impact was minimal and did not significantly affect total frost levels.

Now, Boreyko’s research group has engineered a more advanced defrosting system that utilizes ultra-high voltage copper electrodes positioned above frosted surfaces like glass or copper. This innovative system can eliminate half of the frost in approximately 10 to 15 minutes, and up to 75% if the surface is highly water-repellent. “Instead of tapping into the voltage created by the frost, we’re enhancing the effect by applying our own voltages,” Boreyko explains.

To achieve a 50% reduction in frost, their method requires electrodes charged to 550 volts, which is more than double the voltage generally supplied by utility power in many regions. Nonetheless, the current from these electrodes is minimal, making them relatively safe. Boreyko noted that accidental contact with the electrodes would result in an electric shock similar to that from electric fences used on farms.

Boreyko states that this low current draws less energy—less than half of what would be needed to directly heat the frost.

An effective and swift defrosting technique could be applicable not just to car windows and roadways but also in the aerospace sector, where significant quantities of antifreeze are employed to prevent ice accumulation on aircraft wings, which can impact flight performance.

“Instead of applying hundreds of liters of antifreeze to the aircraft wings during taxi to eliminate ice, we could employ this machine, which would move around the airport runway, utilizing a high-voltage wand to clear away all the ice and snow,” Boreyko remarks.

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Source: www.newscientist.com

AI-Driven Electricity Usage Forecasting Shows Industry is Far from Achieving Net-Zero Goals

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Data Center in Ashburn, Virginia

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As the artificial intelligence sector grows swiftly, concerns about the ecological effects of data centers are increasingly being discussed. New projections indicate that the industry may fall short of achieving net-zero emissions by 2030.

Fenki Yu and researchers from Cornell University in New York have evaluated the potential energy, water, and carbon consumption of current leading AI servers by 2030, under various growth scenarios and specific U.S. data center locations. Their analysis integrates anticipated chip production, server energy demands, and cooling efficiency, coupled with state power grid data. While not all AI enterprises have declared net-zero objectives, major tech firms involved in AI, like Google, Microsoft, and Meta, have set targets for 2030.

“The rapid expansion of AI computing is fundamentally altering everything,” says Yu. “We’re striving to understand the implications of this growth.”

The researchers estimate that establishing AI servers in the U.S. may require between 731 million to 1.125 billion cubic meters of additional water by 2030, along with greenhouse gas emissions ranging from 24 million to 44 million tons of carbon dioxide each year. These estimates hinge on the pace of AI demand growth, the actual number of advanced servers that can be produced, and the sites of new U.S. data centers.

To address these issues, the researchers modeled five scenarios based on varying growth rates and outlined potential measures to minimize the impact. “The top priority is location,” Yu explains. By situating data centers in Midwestern states with abundant water resources and a significant share of renewable energy in the power grid, the environmental fallout can be mitigated. The team also emphasizes that transitioning to decarbonized energy sources and enhancing efficiency in computing and cooling processes are essential strategies for minimizing environmental impact. Collectively, these three measures could potentially lower industry emissions by 73% and reduce water usage by 86%.

However, public resistance may disrupt these predictions, particularly regarding the environmental ramifications of establishing data centers. In Virginia, where 1/8 of the world’s data centers are located, residents have voiced opposition to upcoming construction plans, citing concerns over water resources and broader environmental impacts. Similar petitions against data centers have arisen in Pennsylvania, Texas, Arizona, California, and Oregon. As per Data Center Watch, a firm that monitors data center developments, local opposition is stalling approximately $64 billion worth of projects. Even where certain locations successfully deny data center projects, questions remain regarding their potential power and water consumption.

This new research is viewed cautiously by those analyzing and quantifying AI’s environmental effects. “The AI field evolves so quickly that making accurate future predictions is incredibly challenging,” says Sasha Luccioni from the AI company Hugging Face. “As mentioned by the authors, breakthroughs in the industry can radically alter computing and energy needs, reminiscent of DeepSeek’s innovative techniques that reduced reliance on brute-force calculations.”

Chris Priest from the University of Bristol in the UK concurs, highlighting the necessity for increased investment in renewable energy infrastructure and the importance of data center placement. “I believe their projections for water usage in direct cooling of AI data centers are rather pessimistic,” he remarks, suggesting that the model’s “best case” scenario aligns more closely with “business as usual” for contemporary data centers.

Luccioni believes the paper underscores a vital missing element in the AI ecosystem: “greater transparency.” She notes that this issue can be addressed by “mandating model developers to track and disclose their computing and energy consumption, share this information with users and policymakers, and commit to reducing overall environmental impacts, including emissions.”

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Source: www.newscientist.com

Top 250 Oil and Gas Companies Hold Just 1.5% of Global Renewable Electricity Ownership

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Oil corporations are making minimal investments in wind energy.

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Significant oil and gas firms hold under 1.5 percent of the global renewable electricity capacity, raising concerns about their dedication to green energy transition, despite their public assertions.

Marcel Llabero Pasquina and Antonio Bontempi, researchers from the Autonomous University of Barcelona, analyzed ownership data of over 53,000 renewable energy projects—including wind, solar, hydroelectric, and geothermal—tracked by the NGO Global Energy Monitor. They compiled this information to determine the proportion of these projects owned by the 250 largest oil and gas companies, which together dominate 88% of global hydrocarbon production.

As the world shifts away from fossil fuels, many chief energy companies have committed to investing in renewables, yet findings indicated that these top firms own merely 1.42% of operational renewable energy capacity worldwide. Notably, more than half (around 54%) of this capacity was acquired rather than developed by these companies. Their analysis of total energy output showed that just 0.13% of energy produced by these companies comes from renewable electricity.

“The findings were astonishing even to me,” remarks Llabero-Pasquina. “We understood they played a limited role in the energy transition. We thought it was merely for appearances. Yet, the numbers are even lower than we anticipated.”

Llavero Pasquina and Bontempi are associated with Environmental Justice, a collective dedicated to researching and advancing the global environmental justice movement. Llabero-Pasquina believes that the campaign’s stance bolsters his research. “It is crucial for us to maintain high rigor in our work so that we can effectively persuade others and demonstrate the truth.”

It is not surprising that major energy corporations, renowned for their oil and gas ventures, do not hold substantial stakes in renewable energy, says Thierry Bros from the Institute of Sciences in Paris. “Ultimately, [the energy transition] must be disruptive and not play into the hands of these companies.”

However, Bros argues that big energy firms are misleadingly portraying their efforts towards energy transition. “They represent themselves as incorporating methods like carbon capture for emissions from fossil fuels. Yet, I believe their actual engagement leans more towards carbon capture and sequestration, which may extend beyond their genuine expertise,” he states.

Offshore Energies UK, representing the UK’s offshore energy sector, including oil, gas, wind, carbon capture, and hydrogen, refrained from commenting directly on these findings. Nevertheless, it highlighted a previous statement from CEO David Whitehouse: “Rather than being in conflict, oil and gas, wind, and emerging low-carbon technologies form a unified system. The expertise of our workforce, the same individuals who developed the North Sea, is instrumental for achieving this transition,” he remarked.

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Source: www.newscientist.com

Rising Demand for AI May Increase Electricity Bills in the US, Even with Caution

Even speculative AI energy consumption can raise electricity bills

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The technological aspirations of high-tech firms are set to necessitate a substantial increase in power-hungry data centers. This rising demand poses a risk of higher electricity bills for everyone, even if some data centers remain unbuilt.

Utility companies in the U.S. are hastily constructing additional power plants, transmission lines, and gas pipelines to accommodate the swiftly increasing energy demands of data centers. U.S. housing costs have surged nearly 30% since 2021—outpacing inflation—according to a report by Powerlines, a nonprofit organization focused on utility regulations in the U.S. Over the past two years, electricity bills nationwide have increased by $10 billion each year.

A new report published by the Southern Environmental Law Center, a Virginia-based environmental nonprofit, highlights that it might overestimate the demand stemming from speculative data center projects. Developers frequently submit overlapping requests for electrical services across multiple regions for each project before settling on a single location.

“If the anticipated load from the data center isn’t fully realized—all indications and frankly, common sense at this point indicate that. Rate payers will ultimately bear the economic burden of unnecessary and underused gas and electricity infrastructures,” says Megan Gibson of the Southern Environmental Law Center.

Former executives from firms such as Google and Meta admit that the practice of securing redundant data center power is typical, as outlined in the report. “Tech executives are candidly voicing concerns,” Gibson mentions. New Scientist reached out to Amazon, Google, Meta, and Microsoft regarding their data center development plans, but received no additional comments.

Considering all U.S. data center projects announced between 2025 and 2030, the inflated estimates stand out even more. Collectively, they are projected to consume 90% of the global chip supply—despite the fact that the U.S. currently makes up less than 50% of global chip demand. “It’s uncommon for the entirety of the world’s chip supply to cater to this specific segment in the U.S.,” notes Marie Ng Fagan from London Economics International, a global consulting firm based in the U.S. and Canada.

To ease the burden on regular bill payers, “states should mandate utilities to forge contracts with potential data center customers that allocate this risk to the data center itself,” advises Ali Pescoe from Harvard Law School, a consultant for Powerlines.

Some state governments are already taking action. On July 9th, the Ohio Regulatory Authority issued an order that mandates large data center customers of Ohio’s largest utility company to pay at least 85% of their subscribed power load, even if their actual consumption falls short. Similarly, officials in Georgia are grappling with a rule designed to prevent data center growth from imposing burdens on other bill payers.

“The data center industry is dedicated to bearing the full costs of services for energy used, including transmission fees,” asserts Aaron Tingjum from the Data Centers Union, a Virginia-based trade association. “It’s crucial to guarantee fair electricity bills for all customers.”

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Source: www.newscientist.com

Google’s Emissions Projected to Increase 51% Due to Rising AI Electricity Demands

Since 2019, Google’s carbon emissions have surged by 51%, with artificial intelligence proving to be a hindrance to tech firms’ sustainability initiatives.

While companies are pouring resources into renewable energy and carbon capture technologies, they struggle to manage emissions in Range 3, which originates further down the supply chain and is significantly influenced by the expanding data center capabilities required for artificial intelligence.


The company noted a 27% year-on-year increase as it grapples with decarbonization amidst rising energy demands.

Data centers are crucial for training and operating AI models like Google’s Gemini and OpenAI’s GPT-4. The International Energy Agency projects that the total electricity consumption of data centers could reach double the level from 2022, with Japan’s electricity demand expected to hit 1,000 TWh (terawatt hours) by 2026. AI accounts for 4.5% of global energy production, according to estimates from Semianalysis for the year 2030.


The report expresses concerns that the rapid advancement of AI may trigger “nonlinear growth in energy demand,” complicating predictions for future energy requirements and emissions trajectories.

Additionally, Google pointed out the slow progress in new low-carbon power generation technologies. Small Modular Reactors (SMRs), which are compact nuclear power plants designed for quick deployment to support the grid, are seen as a promising solution to lower the carbon footprint of data centers. Areas hosting numerous data centers could benefit from one or more SMRs to significantly cut down their electricity-related carbon emissions.





Google’s data center is situated in Grange Castle near Dublin. In 2022, Ireland’s energy grid operators halted the expansion of new data centers in Dublin until 2028. Photo: Patrick Bolger/Guardian

According to the report, the development of these technologies is lagging behind schedule. “The main obstacle is the slow rollout of large-scale carbon-free energy technologies, making it highly challenging to reach goals by 2030.

It further indicated that Scope 3 emissions pose a “challenge,” with Google’s total ambitions representing 11.5 million tons of CO2 equivalent, marking an 11% year-on-year rise since 2019, equating to a 51% increase. This is primarily driven by heightened emissions from the supply chain, with Scope 3 emissions surging by 22% in 2024.

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Google has made significant strides in acquiring clean energy, signing over 170 contracts for more than 22 gigawatts since 2010. In 2024, 25 of these contracts added 2.5GW of fresh clean energy to its operations, marking a record year in clean energy transactions with an agreement totaling 8GW.


The company has also achieved one of its environmental goals ahead of schedule by eliminating plastic packaging. Google announced that all new products launched and produced in 2024 will be entirely plastic-free. This goal was initially set for the end of 2025.

The report adds that AI may offer a “net positive potential” for the climate, with aspirations that emissions reductions facilitated by AI applications will outweigh the emissions generated by AI itself, including the energy used by data centers.

Google envisions aiding individuals, cities, and other partners in collectively lowering carbon equivalent emissions by 2030 through AI-powered products. These innovations can enhance energy usage predictions, reduce waste, and optimize solar panel placement to maximize energy generation.

Source: www.theguardian.com

AI Projected to Clarify Nearly 50% of Data Center Electricity Consumption by Year-End: A Green Economy Perspective

Artificial intelligence systems may represent nearly 50% of a data center’s power consumption by the end of this year, according to a recent analysis.

These estimates, provided by Digiconomist Tech Sustainability founder Alex de Vries-Gao, echo a prediction from the International Energy Agency regarding AI’s energy needs by the decade’s end, similar to current usage in Japan.

De Vries-Gao’s calculations, as detailed in the Sustainable Energy Journal Joule, are based on the energy consumed by chips developed by companies like Nvidia and Advanced Micro Devices that are used for training and operating AI models. The study also factors in energy usage of chips from other providers, such as Broadcom.

The IEA reported that all data centers (excluding those for cryptocurrency mining) consumed 415 terawatt hours (TWh) of electricity last year. De Vries-Gao asserts that AI currently contributes to 20% of that total.

He highlights various factors influencing his calculations, including energy efficiency in data centers and the power requirements of cooling systems that manage AI workloads. Data centers serve as the central nervous system for AI technology, making their energy consumption a significant sustainability issue for AI development and usage.

De Vries-Gao projects that by the end of 2025, AI systems could consume up to 49% of total data center energy, potentially reaching 23 gigawatts (GW) — double the total energy usage of the Netherlands.

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However, De Vries-Gao mentioned that several factors might dampen hardware demand, including reduced interest in applications like ChatGPT. Geopolitical tensions creating restrictions on AI hardware production, such as export limitations, are another hurdle. De Vries-Gao notes the challenges faced by Chinese access to chips, which led to the introduction of the Deepseek R1 AI model that purportedly required fewer chips.

“These innovations could help decrease both AI processing and energy costs,” said De Vries.

That said, he mentioned that enhanced efficiency could further encourage AI adoption. Additionally, a trend referred to as “sovereign AI,” where countries aim to create their own AI systems, might spur hardware demand. De Vries-Gao cited US Data Centre startup Crusoe Energy, which secured 4.5GW of gas-powered energy capacity, making it a leading contender for potential clients like OpenAI through its Stargate venture.

“These early indicators suggest that [Stargate] data centers may increase our reliance on fossil fuels,” noted De Vries-Gao.

On Thursday, OpenAI unveiled its Stargate project in the United Arab Emirates, marking its expansion outside the United States.

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Last year, Microsoft and Google acknowledged that AI poses risks to meet their internal environmental objectives.

De Vries-Gao commented that information about AI’s power requirements is increasingly scarce, describing the industry as “opaque.” While the EU AI Act mandates that AI firms disclose energy consumption related to model training, it does not cover daily usage metrics.

Professor Adam Sobey, mission director for sustainability at the UK’s Alan Turing Institute, stressed the importance of enhanced transparency regarding the energy usage of AI systems and the potential savings from advancing carbon reduction sectors like transport and energy.

Sobey remarked, “We don’t necessarily need an extensive number of compelling use cases for AI to offset the energy costs incurred upfront.”

Source: www.theguardian.com

UK Zone Electricity Pricing Benefits High-tech Companies Burning AI Data Centres

High-tech companies are urging the UK government to support the growth of AI data centers in remote areas of the UK by offering the lowest electricity prices in Europe.

A report commissioned by high-tech companies Amazon and Openai calls on the government to reform the UK electricity market by implementing zonal pricing, where prices vary based on different zones to incentivize investment in areas with lower electricity costs.

This zonal pricing model, according to a report by SMF Think Tank, highlights Scotland as a hotspot for AI data centers due to its abundant wind farms and population density.

Political leader Keir Starmer has emphasized the importance of artificial intelligence in positioning the UK as a global technology leader.

However, concerns have been raised about hosting data centers in the UK due to high industrial electricity prices and ambitious targets to phase out fossil fuels from the electricity system.

The SMF report suggests that zonal pricing could significantly reduce electricity costs for data centers, making Scotland’s electricity prices the lowest in Europe.

Support for zonal pricing has been recommended by cross-party Think Tanks to expedite the deployment of AI data centers by connecting more low-carbon electricity to the grid and addressing planning delays.

The report also backs the government’s plan to build small modular reactors outside traditional nuclear areas to facilitate the development of Data Centre Hubs in England and Wales.

According to Sam Robinson of SMF, urgent action is needed to address rising energy costs and planning delays to maintain the UK’s position as a global innovation leader.

Zone pricing alignment has garnered support from SMF clients and tech companies in government consultations on the future of electricity markets.

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The proposed zoning system aims to attract high-energy users to regions with lower electricity prices, creating new job opportunities outside of southeastern England while balancing demand on the local grid.

However, concerns have been raised that changes in energy pricing may impact profitability of remote clean energy projects, potentially hindering investment in green energy.

The government is expected to make a decision on the future of the electricity market in the coming months.

Source: www.theguardian.com

New research indicates that caterpillars are able to detect predatory wasps through the emission of static electricity.

Predatory wasps are electrically charged and emit electric fields, and their larvae respond to these fields with defensive behaviour, according to a new study from the University of Bristol.

Sam J. England and Daniel Robert discovered that some terrestrial animals can sense the electric fields emitted by electrostatically charged predators and use this sensation to mount defensive actions. These photos show the four animal species examined in the study: (A) A Cinnabarga larva (Tilia jacobae) Taking a defensive posture. (B) The larva of a rare transpiration moth (Terrorcrus Rekens) in a defensive coiled position. (C) The larva of the European peacock butterfly (Aglais), (D) a predatory common hornet in the middle of a defensive maneuver (HornetImage credit: Sam J. England & Daniel Robert, doi: 10.1073/pnas.2322674121.

“Many animals naturally build up static electricity on their bodies as they move around in their environment, and we knew that static electricity can push or pull on other charged objects,” said researcher Sam England, from the University of Bristol.

“In particular, we knew that insect hairs can be moved by electric fields emitted by electrostatically charged objects, in the same way that an electrically charged balloon can move hair on the head.”

“This got us thinking: What if prey animals like caterpillars could detect predators by sensing the electric fields emitted by the predators?”

“Could the static electricity of a predator like a wasp be enough to alert the caterpillar to the approach of the wasp, by pushing and pulling on the caterpillar's sensory hairs?”

Dr England and his colleague, Professor Daniel Robert, from the University of Bristol, measured how much static electricity the wasps and caterpillars had picked up by passing them through a static sensor.

The researchers then fed these charge values ​​into a computational model to mathematically predict how strong the electric field would be as the wasp approached the larvae on the plant.

When the caterpillars reacted defensively to these conditions, they were able to determine whether it was sensory hairs that were detecting the electricity by using a laser to detect tiny vibrations and measuring how much the hairs moved in response to electric fields of different frequencies.

The results are concerning because they show that the caterpillars are also sensitive to the frequencies of electric fields emitted by power lines and other electronic devices.

This means that humans may be filling the environment with electrical “noise” that interferes with animals' ability to detect predators.

Dr England continued: “We now feel it is extremely urgent to assess whether introducing a new type of sensory pollution – electrical noise – is interfering with the ability of caterpillars, and other animals, to detect predators.”

Almost all terrestrial animals seem to accumulate static electricity, so this static sense may be widespread, and the discovery that static electricity plays a role in these ecological interactions would open up an entirely new dimension to our understanding of how animals sense each other, and more generally, how and why animals evolve in certain ways.

“Our study suggests that terrestrial animals may be able to use static electricity as a predator-detection cue,” Dr England said.

“This is likely an ability that is particularly widespread in insects and small animals such as spiders and scorpions.”

“This study provides the first example of an animal detecting predators by sensing static electricity emitted by the predator.”

“This reveals a new dimension of predator-prey interactions on land, but also suggests a previously unnoticed way in which we may be negatively impacting wildlife by introducing sources of electrosensory pollution.”

of study Published in Proceedings of the National Academy of Sciences.

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Sam J. England & Daniel Robert. 2024. Prey can detect predators via airborne electroreception. PNAS 121(23):e2322674121; doi:10.1073/pnas.2322674121

Source: www.sci.news

Cotton fiber with enhanced conductivity to generate electricity

Researchers have developed a new fiber that blends the flexibility of cotton with the electrical conductivity of the polymer polyaniline. This innovative material, detailed in Carbohydrate Polymers, shows potential in creating wearable electronic textiles for applications such as health monitoring and hazardous exposure detection. (Artist’s concept) Credit: SciTechDaily.com

A Washington State University breakthrough combines the flexibility of cotton with the electrical conductivity of polymers, paving the way for advanced wearable electronic textiles.

A single fiber developed at Washington State University has the flexibility of cotton and the electrical conductivity of a polymer called polyaniline.

The newly developed material showed great potential as a wearable electronic textile. WSU researchers tested the fibers with a system that powers LED lights and a system that senses ammonia gas, and detailed their results in the journal Nature. carbohydrate polymer.

Microscopic image of the newly developed fiber. It shows a parallel mix, with one side containing cotton and the other side a polyanaline polymer that can conduct electrical current.Credit: Washington State University

“One fiber is divided into two sections. One section is traditional cotton, flexible and strong enough for everyday use, and the other side is a conductive material,” says WSU Textile Research. said Hang Liu, a researcher and corresponding author of the study. “Cotton can support conductive materials that can provide the required functionality.”

Potential applications in wearable technology

Although further development is required, the idea is to incorporate such fibers into apparel as sensor patches with flexible circuitry. These patches could become part of the uniforms of firefighters, soldiers, and workers who work with chemicals to detect hazardous exposures. Other applications include health monitoring and exercise shirts with features beyond today’s fitness monitors.

“We have some smart wearable products like smartwatches that can track people’s movements and people’s vital signs, but in the future we hope that everyday wear will also have these features. “We are doing so,” Liu said. “Fashion is more than just colors and styles, as many people think. Fashion is a science.”

Han Liu, a textile researcher at Washington State University.Credit: Washington State University Dean Hare

Technical challenges and solutions

In this study, the WSU team worked to overcome the challenge of blending conductive polymers with cotton cellulose. Polymers are substances with very large molecules that have repeating patterns. In this case, the researchers used polyaniline, also known as PANI, a synthetic polymer with conductive properties that is already used in applications such as printed circuit board manufacturing.

Although polyaniline is inherently conductive, it is brittle and cannot be made into textile fibers on its own. To solve this, WSU researchers dissolved cotton cellulose from recycled T-shirts in a solution and a conductive polymer in another solution. He then combined the two solutions side by side and extruded the material to create a single fiber.

Han Liu, a textile researcher at Washington State University, shows a microscopic image of the newly developed fiber, showing a side-by-side mixture containing cotton on one side and a polyanaline polymer that can conduct electrical current on the other side. We are confirming that there is.Credit: Washington State University Dean Hare

The results showed good interfacial bonding. This means that the molecules of different materials stay together even when stretched or bent.

Achieving the right mixture at the cotton cellulose and polyaniline interface required a delicate balance, Liu said.

“We’ve made these two solutions work so that when the cotton and conductive polymer come in contact with each other, they mix to some extent in a glue-like state. But don’t mix too much; don’t do that. And it becomes less conductive,” she said.

Reference: “Novel structural design of cellulose-based conductive composite fibers for wearable electronic textiles” Wangcheng Liu, Hang Liu, Zihui Zhao, Dan Liang, Wei-Hong Zhong, Jinwen Zhang, August 18, 2023. carbohydrate polymer.
DOI: 10.1016/j.carbpol.2023.121308

In addition to lead author Wangcheng Liu, WSU authors of the study also include Zihui Zhao, Dan Liang, Wei-Hong Zhong, and Jinwen Zhang. This research received support from the National Science Foundation and the Walmart Foundation Project.

Source: scitechdaily.com