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A leading use for quantum computers might not need them after all

New Scientist

Do quantum computers offer a way to vastly improve agriculture? As quantum computers continue to advance, identifying problems they can solve faster than the world's best conventional computers is becoming increasingly important - but it turns out that a key task held up as a future goal by quantum proponents may not need a quantum computer at all. The task in question involves a molecule called FeMoco, which plays a vital role in making life on Earth possible. That is because it is part of the process of nitrogen fixation, in which microbes convert atmospheric nitrogen into ammonia, making it biologically accessible to most other living organisms. How exactly FeMoco works during this process is complicated and not fully understood, but if we could crack it and replicate it on an industrial scale, it could drastically cut the energy involved in producing fertilisers, potentially leading to a boost in crop yields.


Swiss startup turns urine into plant fertilizer

Popular Science

The space-inspired wastewater treatment uses the nutrients and loses the odor. Breakthroughs, discoveries, and DIY tips sent every weekday. When most people need to go number one, they find the nearest bathroom and don't give half a thought to what happens to their pee once it disappears down the toilet or urinal . It turns out that the nitrogen in human urine can be used in fertilizer. However, humanity's use of nitrogen is everything but efficient, according to a pair of siblings who founded the Swiss start-up company, VunaNexus.


Tiny prairie dogs' poop play a mighty role in grasslands

Popular Science

Environment Conservation Land Tiny prairie dogs' poop play a mighty role in grasslands Breakthroughs, discoveries, and DIY tips sent every weekday. Earth is made of cycles. If you think back to high school Earth science class, you might remember the water cycle, the rock cycle, and the oxygen cycle, to name just a few. These natural processes continuously recycle our planet's materials, maintaining the environment that hosts life as we know it. The nutrient cycle is another crucial example of our planet's constant churn.


WOFOSTGym: A Crop Simulator for Learning Annual and Perennial Crop Management Strategies

Solow, William, Saisubramanian, Sandhya, Fern, Alan

arXiv.org Artificial Intelligence

We introduce WOFOSTGym, a novel crop simulation environment designed to train reinforcement learning (RL) agents to optimize agromanagement decisions for annual and perennial crops in single and multi-farm settings. Effective crop management requires optimizing yield and economic returns while minimizing environmental impact, a complex sequential decision-making problem well suited for RL. However, the lack of simulators for perennial crops in multi-farm contexts has hindered RL applications in this domain. Existing crop simulators also do not support multiple annual crops. WOFOSTGym addresses these gaps by supporting 23 annual crops and two perennial crops, enabling RL agents to learn diverse agromanagement strategies in multi-year, multi-crop, and multi-farm settings. Our simulator offers a suite of challenging tasks for learning under partial observability, non-Markovian dynamics, and delayed feedback. WOFOSTGym's standard RL interface allows researchers without agricultural expertise to explore a wide range of agromanagement problems. Our experiments demonstrate the learned behaviors across various crop varieties and soil types, highlighting WOFOSTGym's potential for advancing RL-driven decision support in agriculture.


AgroXAI: Explainable AI-Driven Crop Recommendation System for Agriculture 4.0

Turgut, Ozlem, Kok, Ibrahim, Ozdemir, Suat

arXiv.org Artificial Intelligence

Today, crop diversification in agriculture is a critical issue to meet the increasing demand for food and improve food safety and quality. This issue is considered to be the most important challenge for the next generation of agriculture due to the diminishing natural resources, the limited arable land, and unpredictable climatic conditions caused by climate change. In this paper, we employ emerging technologies such as the Internet of Things (IoT), machine learning (ML), and explainable artificial intelligence (XAI) to improve operational efficiency and productivity in the agricultural sector. Specifically, we propose an edge computing-based explainable crop recommendation system, AgroXAI, which suggests suitable crops for a region based on weather and soil conditions. In this system, we provide local and global explanations of ML model decisions with methods such as ELI5, LIME, SHAP, which we integrate into ML models. More importantly, we provide regional alternative crop recommendations with the counterfactual explainability method. In this way, we envision that our proposed AgroXAI system will be a platform that provides regional crop diversity in the next generation agriculture.


VideoSAM: A Large Vision Foundation Model for High-Speed Video Segmentation

Maduabuchi, Chika, Jossou, Ericmoore, Bucci, Matteo

arXiv.org Artificial Intelligence

High-speed video (HSV) segmentation is essential for analyzing dynamic physical processes in scientific and industrial applications, such as boiling heat transfer. Existing models like U-Net struggle with generalization and accurately segmenting complex bubble formations. We present VideoSAM, a specialized adaptation of the Segment Anything Model (SAM), fine-tuned on a diverse HSV dataset for phase detection. Through diverse experiments, VideoSAM demonstrates superior performance across four fluid environments -- Water, FC-72, Nitrogen, and Argon -- significantly outperforming U-Net in complex segmentation tasks. In addition to introducing VideoSAM, we contribute an open-source HSV segmentation dataset designed for phase detection, enabling future research in this domain. Our findings underscore VideoSAM's potential to set new standards in robust and accurate HSV segmentation. The code and dataset used in this study are available online at https://github.com/chikap421/videosam .


A novel concept for Titan robotic exploration based on soft morphing aerial robots

Ruiz, Fernando, Arrue, Begona, Ollero, Anibal

arXiv.org Artificial Intelligence

This work introduces a novel approach for Titan exploration based on soft morphing aerial robots leveraging the use of flexible adaptive materials. The controlled deformation of the multirotor arms, actuated by a combination of a pneumatic system and a tendon mechanism, provides the explorer robot with the ability to perform full-body perching and land on rocky, irregular, or uneven terrains, thus unlocking new exploration horizons. In addition, after landing, they can be used for efficient sampling as tendon-driven continuum manipulators, with the pneumatic system drawing in the samples. The proposed arms enable the drone to cover long distances in Titan's atmosphere efficiently, by directing rotor thrust without rotating the body, reducing the aerodynamic drag. Given that the exploration concept is envisioned as a rotorcraft planetary lander, the robot's folding features enable over a 30$\%$ reduction in the hypersonic aeroshell's diameter. Building on this folding capability, the arms can morph partially in flight to navigate tight spaces. As for propulsion, the rotor design, justified through CFD simulations, utilizes a ducted fan configuration tailored for Titan's high Reynolds numbers. The rotors are integrated within the robot's deformable materials, facilitating smooth interactions with the environment. The research spotlights exploration simulations in the Gazebo environment, focusing on the Sotra-Patera cryovolcano region, a location with potential to clarify Titan's unique methane cycle and its Earth-like features. This work addresses one of the primary challenges of the concept by testing the behavior of small-scale deformable arms under conditions mimicking those of Titan. Groundbreaking experiments with liquid nitrogen at cryogenic temperatures were conducted on various materials, with Teflon (PTFE) at low infill rates (15-30%) emerging as a promising option.


Using Multivariate Linear Regression for Biochemical Oxygen Demand Prediction in Waste Water

Mutai, Isaiah K., Van Laerhoven, Kristof, Karuri, Nancy W., Tewo, Robert K.

arXiv.org Artificial Intelligence

There exist opportunities for Multivariate Linear Regression (MLR) in the prediction of Biochemical Oxygen Demand (BOD) in waste water, using the diverse water quality parameters as the input variables. The goal of this work is to examine the capability of MLR in prediction of BOD in waste water through four input variables: Dissolved Oxygen (DO), Nitrogen, Fecal Coliform and Total Coliform. The four input variables have higher correlation strength to BOD out of the seven parameters examined for the strength of correlation. Machine Learning (ML) was done with both 80% and 90% of the data as the training set and 20% and 10% as the test set respectively. MLR performance was evaluated through the coefficient of correlation (r), Root Mean Square Error (RMSE) and the percentage accuracy in prediction of BOD. The performance indices for the input variables of Dissolved Oxygen, Nitrogen, Fecal Coliform and Total Coliform in prediction of BOD are: RMSE=6.77mg/L, r=0.60 and accuracy 70.3% for training dataset of 80% and RMSE=6.74mg/L, r=0.60 and accuracy of 87.5% for training set of 90% of the dataset. It was found that increasing the percentage of the training set above 80% of the dataset improved the accuracy of the model only but did not have a significant impact on the prediction capacity of the model. The results showed that MLR model could be successfully employed in the estimation of BOD in waste water using appropriately selected input parameters.


Curiosity rover's biggest achievements so far as it celebrates 10 years on Mars

Daily Mail - Science & tech

Today marks exactly 10 years since NASA's Curiosity rover touched down on Mars. The one-tonne vehicle launched from Earth in November 2011 and – after an arduous nine-month journey which included the'seven minutes of terror' down to the Martian surface – it set out to look for evidence that the Red Planet may once have supported life. Since then, Curiosity has driven nearly 18 miles (29 kilometres) and ascended 2,050 feet (625 metres) as it explores Gale Crater and the foothills of Mount Sharp within it. The rover has analysed 41 rock and soil samples, relying on a suite of science instruments to learn what they reveal about Earth's rocky sibling. Such has been its success, what was originally intended to be a two-year mission was later extended indefinitely, leading to a rather busy decade.


EarthOptics helps farmers look deep into the soil for big data insights – TechCrunch

#artificialintelligence

Farming sustainably and efficiently has gone from a big tractor problem to a big data problem over the last few decades, and startup EarthOptics believes the next frontier of precision agriculture lies deep in the soil. Using high-tech imaging techniques, the company claims to map the physical and chemical composition of fields faster, better, and more cheaply than traditional techniques, and has raised $10M to scale its solution. "Most of the ways we monitor soil haven't changed in 50 years," EarthOptics founder and CEO Lars Dyrud told TechCrunch. "There's been a tremendous amount of progress around precision data and using modern data methods in agriculture – but a lot of that has focused on the plants and in-season activity -- there's been comparatively little investment in soil." While you might think it's obvious to look deeper into the stuff the plants are growing from, the simple fact is it's difficult to do.