Engineering and Technology
Using laser light to produce and receive high-frequency radiation, photoconductors have become a promising aspect of materials science in recent years. So far, however, their production has faced a number of barriers. Through his research, Dr Sascha Preu at TU Darmstadt in Germany has tackled many of these challenges through the use of an alloy based on indium gallium arsenide enhanced with erbium arsenide particulates, whose electrons display some intriguing properties. His team’s work has now greatly improved the prospects for photoconductors in applications including spectroscopy, imaging and non-destructive testing.
Wine is a firm favourite at dinner tables everywhere, but keeping up with consumer demand is becoming increasingly difficult as the incidence and severity of drought increases. While previous irrigation systems have helped maintain grape yield and quality, they are hindered by multiple disadvantages. Dr Pete Jacoby and his team at Washington State University have developed an improved system called Direct Root-Zone irrigation, which combats many of the limitations of previous systems. With the efficacy confirmed, they aim to make their irrigation system available to growers in wine-producing regions across the globe.
Despite dramatic advances in neuroscience and biology in the 20th and 21st centuries, our understanding of the brain remains very limited. Dr Yan M Yufik, Head at Virtual Structures Research Inc, USA, is a physicist and cognitive scientist who has spent over 20 years combining experimental findings and theoretical concepts in domains as diverse as neuroscience and thermodynamics to form a theory of the brain. His focus has been on elucidating the mechanisms underlying human understanding and applying the results to the design of machines that can not only learn but understand what they are learning.
Representing approximately 7,000 members in over 100 countries, the American Society of Agricultural and Biological Engineers (ASABE) is devoted to advancing engineering research applicable to agriculture, food and biological systems. In this exclusive interview, we have had the pleasure of speaking with Dr Sue Nokes, President of ASABE, who discusses the myriad of ways that the Society accelerates this diverse research field, towards ensuring global food, energy and water security, in the face of our changing climate and growing human population.
Dr Mike Müller-Petke | Dr Stephan Costabel – Enhancing Groundwater Detection with Magnetic Resonance
Detecting underground water is of considerable importance, particularly for applications such as groundwater exploration, predicting the movement of contaminants in soils or building underground tunnels and mining facilities. Underground water is a limited resource that is essential for human life, but it can pose a safety threat in cases where the structural integrity of underground structures, such as tunnels, depends on solid earth being present throughout. Dr Mike Müller-Petke of the Leibniz Institute for Applied Geophysics, and Dr Stephan Costabel of the Federal Institute for Geosciences and Natural Resources, are investigating methods to greatly improve the detection of underground water, using a technology known as nuclear magnetic resonance.
Facilities for recycling metal parts at the locations they are required would be a major milestone in the global struggle towards sustainable industry. Yet for all its advantages, the innovations required to realise such a goal are a daunting prospect. Now, Andrew LaTour and his colleagues at MolyWorks Materials are bringing the idea one step closer to reality, through the development of their ‘Mobile Foundry’. The company’s work could soon provide a new basis for developing a completely closed-loop economy in areas related to metal manufacturing, potentially slashing the industry’s negative environmental impacts.
Materials science – the discovery and characterisation of new materials – drives forward the creation of new technology. In particular, the development of thin films of materials is vital to the electronics industry, as they are used in various device components such as displays and sensors. The properties of these materials are defined by their atomic structure, and until recently it was a major challenge for scientists to accurately characterise this. Towards this aim, Professor Yoshio Waseda and his team at the Institute of Multidisciplinary Research for Advanced Materials have developed a novel method for characterising the atomic structure of thin films.
Floods devastate communities across the globe. A single flood disaster can cause the loss of thousands of lives, and the displacement of millions of people. The devastating effect is exacerbated by the difficulty in monitoring floods and evaluating the information to make the best responsive decisions. To help communities and emergency response teams better predict and prepare for flooding events, Dr Guy J-P Schumann and his team at Remote Sensing Solutions in collaboration with the Dartmouth Flood Observatory (DFO) have harnessed remote sensing technology to develop an advanced user-friendly universal flood monitoring and prediction system.
A key limitation of pest control in agriculture and forestry is the ability to detect pests and diseases early enough for effective treatment. This is exacerbated in the pine forestry industry, where plantations cover vast areas and many pests remain hidden inside the trees. Pine trees killed by beetles are often discarded, causing significant economic and environmental consequences. Dr Cedric Ogden at Fort Valley State University is developing a comprehensive loblolly pine pest-management plan, using drones to detect infestations early, and salvaging damaged timber for use as a fuel source.
Global Navigation Satellite Systems such as GPS are the backbone of many global communications, but they are not immune to failure. Progeny Systems Corporation is dedicated to mitigating such disasters if and when satellite-based communications fail, by developing Earth-based systems that work in comparable ways to synchronised satellite networks. As an alternative to GPS, the company’s technology could provide communicating parties with a crucial yet inexpensive safeguard against future failures.
Robots that assist us with both everyday and highly specialised tasks are no new concept, but so far, their actual development has appeared to be far from becoming a reality. Yet through the research of Dr Paul Robertson, Chief Scientist at Dynamic Object Language Labs (DOLL) in Massachusetts, such sophisticated technology is now looking increasingly feasible. By considering how robots can be programmed to recognise tasks and comprehend human emotions, his research could be bringing engineers a step closer towards reliable robotic assistants.
For now, planetary scientists can only dream of getting their hands-on rock samples taken from the surfaces of distant worlds. Achieving these extractions presents a significant set of challenges, but Dr Robert Winglee and his colleagues at the University of Washington have made significant strides towards developing feasible techniques for retrieving samples. Through detailed computer design and field experiments, they have now clearly demonstrated that obtaining core samples created during high-velocity impacts with planetary surfaces could one day be a reality.
Created by sources ranging from campfires to cargo ships, air pollution is incredibly difficult to track. This has meant that the full impacts of air pollution are almost impossible to assess, but a solution is on the horizon. The TEMPO instrument (tempo.si.edu), built by Ball Aerospace to Smithsonian Astrophysical Observatory specifications and managed by the NASA Langley Research Center, will soon provide an all-encompassing view of pollution across North America. As part of a global constellation of satellite air quality missions, TEMPO will soon provide us with the most extensive view of pollution ever achieved, along with its impacts, allowing us to tackle it more effectively than ever before.
Corrosion, the gradual destruction of metals, is a significant physical and economic problem worldwide. Traditional heavy metal-based coatings used to protect metals are now viewed negatively due to their impact on the environment. Research led by Jianguo Wang of AnCatt Inc reveals why ion-barrier coatings are the next generation of anticorrosion coating technology.
The location of water in our solar system may hold the key to understanding how the planets evolved, and indicate other potential places to find life away from Earth. Dr Nancy Chabot and Dr Carolyn Ernst of Johns Hopkins University Applied Physics Laboratory, and Ariel Deutsch at Brown University, use data from NASA’s MESSENGER mission to understand how much ice exists on Mercury and how it may have arrived there.
Tiny marine plants known as ‘phytoplankton’ play a disproportionately large role in maintaining the health of our planet, and they provide a rapid signal of changing climate conditions. Professor Michael Behrenfeld at Oregon State University and his many collaborators are developing new satellite approaches, including space-based lasers, to monitor ocean ecosystems. With these technologies, a 3D map of global phytoplankton communities is on the horizon, which will revolutionise our understanding of how these microscopic organisms make Earth a healthy place to live.
Modern genetics provides vast sets of information which can take weeks to assess. Developed by Dr Mark Miller and his colleagues at the San Diego Supercomputer Center, the CIPRES Scientific Gateway solves this problem, by bringing supercomputer-powered analysis to researchers across the globe.
Professor Manfred Broy – Software & Systems Engineering: Integrating Technology into Our Everyday Lives
Software is becoming an increasingly important element of our everyday lives – permeating many of the technologies we use regularly. As our software systems become increasingly sophisticated and ingrained into our lives, it is critical to our livelihoods that they remain both functionally correct and easy to use, even as their complexity increases. Professor Manfred Broy and his colleagues at the Technical University of Munich aim to ensure a smooth transition to a more software-dependent world, through new advances in the field of Software and Systems Engineering.
Researchers from the Connecticut Agricultural Experiment Station and the University of Massachusetts have pioneered the use of tomography for assessing carbon storage in trees. While assessing this technique’s capabilities, they found that tree damage caused by wood-decaying fungi means that forests store less carbon than previously thought. As forests play a vital role in sequestering atmospheric carbon, the team’s work has important implications in the fight against climate change.
Two-dimensional transrectal ultrasound (TRUS) guided biopsy is the standard method for prostate cancer diagnosis. However, the technique is limited in one respect – it can be prone to sampling error. Cancers can be missed, or their severity grossly underestimated. To address this, Dr Baowei Fei, from the University of Texas (UT) at Dallas and UT Southwestern Medical Center, is pioneering a technique that merges positron emission tomography (PET) with TRUS to detect prostate cancer more accurately than before.
Electronic systems influence many aspects of daily life. It is imperative, therefore, that these systems are working as intended and expected. The process of ensuring the correctness of systems is called verification. Traditional verification methods, however, are...
Many of the greatest challenges currently facing humanity, such as climate change and effective urbanisation, are multifaceted and intricate, with multiple moving parts. Complex systems analysts pull data and insights from diverse components to generate dynamic…
The Alexander von Humboldt Foundation promotes academic cooperation between excellent scientists and scholars from abroad and from Germany. To this end, it grants more than 700 research fellowships and research awards annually. These allow researchers from all over...
Coastal environments have immense ecological, practical, recreational and cultural value, and are under threat from multiple natural and anthropogenic stressors. Dr Brian Glazer and his team at the University of Hawai’i use specialised equipment to conduct remote...
In the past few years, speech recognition has become a new standard for state-of-the-art technology. We now talk to our phones as much as we talk on them. How can helping machines learn to listen improve our understanding of how our own brains work? Dr Harald Baayen...
A secure and sustainable energy supply for the future depends upon communities and industries working together. To facilitate this, a skilled STEM workforce is needed. To that end, Dr Pankaj Sharma a courtesy professor at Purdue University and his colleagues have...
Much of the responsibility of improving science, technology, engineering and mathematics (STEM) education has fallen upon teachers. However, it is often just assumed that they have the tools and skills needed to fulfil that responsibility. Dr Pankaj Sharma a courtesy...
The survival of humanity relies upon the sustainable use of natural systems that provide food, energy, and water. However, the growth in the world’s population and human activities that generate pollution are posing serious sustainability challenges to these systems....
A fortune in historical information lies in archives and library basements around the world. Now, research by Dr Klaus Schulz, Dr Florian Fink and their colleagues at Ludwig-Maximilians-Universität in Munich is helping to bring this important information to light....
Professor William Holderbaum | Dr Ioannis Dimitrios Zoulias | Dr Monica Armengol – Walking Against the Current
A research team at the University of Reading is helping people with paraplegia to stand, using electrical stimulation and high-tech exercise platforms to prevent long-term decline in bone and muscle. Spinal cord injuries are far more common than you might think....