Articles tagged with Ocean Engineering
Researchers at Brown University have developed a krill-inspired robot called Pleobot, which emulates the swimming method of krill to navigate complex marine environments. The platform has the potential to enable scientists to understand how to engineer better robots for ocean navigation and exploration.
A new study predicts Arctic sea ice will vanish by the 2030s if greenhouse gas emissions continue unchecked. The research, published in Nature Communications, analyzes 41 years of data and confirms human activities as the primary cause of Arctic sea ice decline.
Scientists discover hydrothermal deposits at a 5.7 km depth in the Japan Trench, indicating low-temperature hydrothermal activity and elevated CO2 and methane levels. The findings highlight the need for further studies on petit-spot volcanoes and their potential impact on global biogeochemical cycles.
A team of scientists achieved a record-breaking 36.83km wireless broadband transmission from a ship to shore off the Irish Aran Islands using proprietary SeaFi technology. The new record surpasses the previous 2018 world record set by the same team, enabling private networks in ports and coastal areas for maritime businesses.
A team of Chinese scientists developed high-resolution Earth system models incorporating clouds and ocean submesoscale eddies, capturing major weather-climate extremes. The models simulate cross-scale interactions and provide new insights into weather-climate mechanisms.
Residual carbon emissions are a major obstacle to achieving net-zero greenhouse gas emissions by 2050. According to University at Buffalo researcher Holly Jean Buck, the world must reach net-zero this century to limit temperature increase, but residual emissions pose significant challenges.
Researchers at Pusan National University have created a new algorithm that can accurately predict ice resistance and fracture points for ships navigating through the Arctic shipping routes. The model uses an elastic material approach, allowing it to study continuous ice-breaking processes, which is essential for efficient navigation.
A novel, low-cost sensor system utilizing force-sensing resistor technology has been developed by Pusan National University researchers for real-time pipeline monitoring. The system demonstrated a 99.4% correlation with commercial sensors, enabling accurate detection of pipeline damages.
University of Arizona engineers create autonomous vehicle system that allows robots to scout out underground habitats on other planets. The 'Breadcrumb-Style Dynamically Deployed Communication Network' paradigm enables robots to work together without human input, addressing NASA's space technology grand challenges.
A team of researchers has identified the importance of rifted margins in the transition to a green economy. These continental margins harbor vast accumulations of rocks and hydrocarbon reserves, making them a potential location for new resources needed for a carbon-neutral economy. The study provides an overview of the processes that s...
Humans have added approximately 900 square miles of land to urban coastlines since 2000, primarily for industrial ports and luxury residential areas. The study found that coastal wetlands are particularly hard-hit, with more than half of tidal flats lost in the Yellow Sea due to reclamation.
Researchers at MIT create a novel approach to building deformable underwater robots using simple repeating substructures. The system can assemble into various shapes and sizes, offering scalability and efficiency improvements over current technologies.
Researchers have identified the need for standardization of performance indices and a single frame for normalization methods to address concerns with bioelectrochemical systems. The study proposes strategies for up-scaling BES technologies, enabling resource recovery through on-site treatment of wastewater at an efficiency comparable t...
Researchers found that global wave models can vary in their estimates of extreme wave heights by up to 20 feet, which can lead to underprotected areas during extreme events. The study emphasizes the need for considering multiple models and modern observational data to better assess offshore and coastal risks.
Researchers developed a semi-submersible vehicle that can travel quickly with low drag and a low profile, making it ideal for military, commercial, and research purposes. The vessel's design allows it to collect and transmit data while minimizing energy expenditure.
An international research team proposes using engineered nanoparticles to fertilize ocean plankton, encouraging growth and carbon dioxide uptake. The approach has been shown to be safe and effective in enhancing plankton growth through controlled release of nutrients.
A team of researchers led by Francesco Fedele investigated the extreme sea states and potential hazards for ship navigation in the eastern Mediterranean. They developed a novel theory of space-time wave extremes, indicating that rogue waves do not 'steal' energy from neighboring waves.
A team of researchers, led by Ling Li from Virginia Tech, has discovered the key strategies behind the strength and toughness of sea urchin exoskeletons. The study reveals that a balance between branch connection nodes and pore size is critical to the material's damage tolerance.
A new field study reveals a previously unobserved fluid dynamic process that affects the ocean's deep-sea mining operations. Researchers equipped a pre-prototype collector vehicle with instruments to monitor its sediment plume disturbances, finding that the plumes remained relatively low and spread under their own weight.
Florida Atlantic University receives a three-year NASA grant to develop experiential learning opportunities for South Florida underserved high school students in the STEM fields. The MAA Experiential Learning Opportunities project aims to increase minority students' participation in STEM programs and professions.
Researchers found the Tonga tsunami reached 90 meters in height, outperforming previous tsunamis like 2011 Japan tsunami. The event emphasized the need for improved detection systems, as volcano-based tsunamis are currently 30 years behind earthquake-based event monitoring tools.
Researchers developed a lifecycle assessment-based framework to manage offshore oil spill cleanup waste. The study suggests combining centrifugation and landfilling as the most suitable remediation approach for low-impact spills.
A FAU Harbor Branch study demonstrates hydrology impacts through high-resolution simulation model. Increased freshwater discharge contributes to intensified shelf water mixing that favors surface intrusion of Loop Current waters.
Scientists developed a novel multilayer coating to improve the longevity of steel, increasing its lifespan by up to 400 hours. The coating, comprising three layers, was found to provide higher resistance to rust than conventional Zn coatings.
Researchers explore the emergence of antibiotic resistance genes in bioaerosols, including sources and detection strategies. The study highlights the need for monitoring and understanding the relationship between human, animal, and environmental microbiomes to counter the spread of AR.
A newly installed deep-water pipeline has led to a significant increase in the abundance and diversity of marine life on the Angolan coast. The study found that the pipeline provided shelter and trapped organic matter, which animals feed on, resulting in an immediate boost to sea-floor animals.
Scientists have found that axisymmetric 'spike waves' can exceed previously thought limits on ocean wave height, leading to significant implications for maritime safety. The new research revealed the fundamental mechanisms behind highly directional and crossing waves becoming much larger than others.
Researchers discovered over 1,200 RNA viruses linked to carbon absorption on the ocean floor. The study suggests engineered viruses could be used as 'knobs' to control carbon storage, potentially slowing climate change.
Researchers evaluated the toxicological effects of BaP on bay scallops, finding increased immune response-related parameters with time at higher concentrations. The study suggests that BaP dampens the immune response of scallops and decreases their capacity to respond to oxidative stress.
Researchers at Cornell University have developed a new algorithm for autonomous underwater sonar imaging that significantly improves speed and accuracy for identifying objects such as explosive mines and sunken ships. The new approach, called informative multi-view planning, integrates information about object locations with sonar proc...
Researchers from Korea Maritime and Ocean University have developed a way to synthesize high-performance functionally graded materials with minimized defects. By controlling the mixing gradient of component materials, they improved mechanical properties and eliminated interfacial cracks.
A new study found that extreme weather events can mobilize hundreds of thousands of cubic meters of sand into beach systems, potentially offsetting shoreline retreat caused by sea level rise. Researchers used high-resolution measurements and specialized equipment to track sand movement before and after storms.
A Rutgers engineer has developed a faster and cheaper way to recover cloud-covered earth surface using a recommendation algorithm inspired by Netflix and Amazon. The algorithm, called Funk-SVD, is more accurate than conventional data-filling tools in predicting coastal landscapes.
Researchers at Stevens Institute of Technology developed an underwater robot capable of mapping its environment, tracking its location, and planning safe routes in complex marine environments. The breakthrough enabled the robot to accurately map a busy harbor in real-time using active SLAM algorithms.
Researchers found that maintaining hard water reduces zinc accumulation and oxidative stress in goldfish, mitigating toxic effects. This study provides an eco-friendly approach to address aquatic ecosystem pollution caused by heavy metal contamination.
Tel Aviv University researchers develop innovative model that explains wave formation, tested in complex experiments. The model takes into account all unstable harmonics and limitations of previous models, providing high reliability for describing physical situation.
Researchers at Northwestern University have developed a new technique to break down polyester plastic waste into its fundamental components. This process, called upcycling, has the potential to remove microplastics from rivers and oceans.
A recent study using mercury stable isotopes reveals that industrial discharge is the primary source of mercury pollution in Korea's west coast. This finding highlights the need for targeted management strategies to mitigate industrial mercury releases and protect marine environments.
The Woods Hole Oceanographic Institution has developed a lightweight, compact marine winch designed to make crew operations easier and more efficient. The winch offers improved flexibility and is expected to be added to InterOcean Systems' product line.
The University of Plymouth is collaborating with Kongsberg Digital to develop a state-of-the-art simulator that will revolutionize the floating offshore wind sector. The new system will provide key insights into solutions increasing efficiency, safety, and cost effectiveness for industry professionals.
The probe measures salinity, temperature and pressure, making three measurements per metre before returning to the surface. The successful deployment provides valuable insights into freshwater input to the marine Arctic ecosystems and its effects on global ocean currents.
A team of scientists from Korea Maritime and Ocean University has developed a novel synthesis route to produce a high-performance co-doped anode material for rechargeable seawater batteries. This breakthrough enables the creation of efficient and sustainable maritime applications, including emergency power supply for coastal nuclear pl...
This book provides a fundamental understanding of the physical, biological, and chemical processes governing fine sediment transport in open water. It covers various spatial and temporal scales, from micro-scale to system-wide, and discusses interactions between disciplines such as hydrodynamics and soft soil mechanics.
Researchers from Korea Maritime & Ocean University found that using LPG as a marine fuel can reduce annual fuel consumption by 7.5-10.4%, fuel cost by 8.8-25.9%, and carbon dioxide emissions by 10-14%. The study also highlights the potential for promoting LPG as an eco-friendly alternative to traditional fuels.
Scientists have created a new protective coating using Al-Mg-Si alloy to resist corrosion in ships and marine facilities. The coating demonstrates improved corrosion resistance through a 'shielding effect', increasing the economic life of steel machinery.
Researchers estimate that 4.7 million cubic meters of large wood enter oceans annually, negatively impacting coastal and marine environments. The study aims to raise awareness about the consequences of interrupting this natural process.
Researchers from South Korea have demonstrated that applying an electric field during air stripping can significantly improve ammonia removal efficiency from wastewater. The study found that electric fields with alternating current of 50 MHz and power of 15 V/cm increase efficiency from 51% to 94%, even under sub-optimal conditions.
Researchers at Korea Maritime & Ocean University have discovered a novel compound, β-HQ clathrates, that can capture both carbon dioxide and nitrous oxide in the atmosphere. The discovery provides valuable insights into the kinetics of trapping these greenhouse gases, which could lead to the development of new gas capture technologies.
The new Atlantic Marine Energy Center, led by UNH, will focus on wave and tidal energy conversion, as well as ocean sensing and aquaculture. The center aims to advance marine renewable energy technologies through research, education, and outreach.
The Dartmouth Engineering team will conduct research on planetary science relating to icy planets' geophysics and astrobiology, aiming to understand the nature of these worlds and their habitability. The project will provide valuable tools for interpreting measurements taken by future missions.
Researchers developed a new anode material that prevents volume change in lithium-ion batteries, leading to improved cycle stability and rate capabilities. The material, composed of manganese selenide nanoparticles anchored in three-dimensional porous carbon nanosheet matrix, demonstrates superior electrochemical properties.
Researchers from Florida Atlantic University developed a new technology that enables prosthetic hands to distinguish between complex, multi-textured surfaces using liquid metal sensors and machine learning algorithms. This innovation could improve control of prosthetic hands and provide haptic feedback for amputees.
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have developed a technique to control and shape optical singularities, opening up possibilities for wide-ranging fields including super-resolution microscopy techniques and new atomic particle traps.
Scientists at FAU Harbor Branch will use satellite images and hydrodynamic modeling to quantify sediment-derived carbon contribution to the coastal budget. The research aims to demonstrate the utility of remote sensing for characterizing critical but often neglected carbon cycle processes.
Researchers found that some foraminifera species can survive and even thrive in hypoxic and anoxic sediments, suggesting a new direction for studying past environmental conditions. The study also revealed diverse metabolic strategies used by these organisms to adapt to low oxygen conditions.
A study by Florida Atlantic University reveals that increased nitrogen availability is transforming Sargassum into a toxic 'dead zone' with catastrophic impacts on coastal ecosystems and human health. The research, published in Nature Communications, suggests that global nutrient pollution is driving harmful algal blooms.
Researchers at Florida Atlantic University will assess safety measures against airborne transmission of viral infections. They will evaluate various protective measures, including facemasks and air filters, to develop experimentally verified computational strategies for mitigating airborne transmission.
Researchers developed bistable inflatable structures using triangular building blocks that can fold flat and be combined to build closed, multistable shapes. These structures maintain their shape without constant input of pressure, enabling faster deployment and use in various applications.
Researchers discovered that aerosolized droplets generated by flushing a toilet and urinal in public restrooms pose a significant risk of transmitting COVID-19. The study found that these small droplets can remain suspended for hours, contaminating the air and increasing the risk of infection.
Scientists have discovered a novel approach to separate and capture nitrous oxide, a harmful greenhouse gas, using hydroquinone clathrate. The study reveals that the organic crystal can trap N2O at high concentrations, making it a promising option for reducing emissions and saving energy.