Healthy You

https://scholarlyworks.lvhn.org/healthy-you/1032/thumbnail.jp

Spartan Daily March 4, 2010

Volume 134, Issue 19https://scholarworks.sjsu.edu/spartandaily/1235/thumbnail.jp

Detection and Predicting Air Pollution Level in a Specific City using Deep Learning

Air pollution affects millions of people worldwide, making it a growing issue. Deep learning can identify and forecast metropolitan air pollution. Deep learning needs a massive dataset of air quality measurements and meteorological factors to predict city air pollution levels. Government monitoring stations and citizen scientific programs collect this data. Once we have our dataset, we can apply deep learning to develop a model that predicts air pollution levels. Temperature, humidity, wind speed, and air quality data will be used to predict future air pollution levels. Predicting air pollution using the LSTM network is popular. This neural network works well with air quality time-series data. The LSTM network's long-term data learning is essential for accurate air pollution predictions. We would pre-process our data to prepare it for an LSTM network to predict air pollution. Scaling, splitting, and encoding data may be needed. Train the LSTM network using backpropagation and gradient descent on our dataset. Adjusting the network's weights and biases would lessen the air pollution gap. After training, the network can predict city air quality. Inputting current meteorological and environmental factors may help accomplish this aim and deliver timely predictions. Deep learning can detect and predict urban air pollution. LSTM neural network algorithms may accurately forecast complex air quality data patterns, providing vital information about our planet's health

Healthy You

https://scholarlyworks.lvhn.org/healthy-you/1035/thumbnail.jp

Leveraging Artificial Intelligence and Geomechanical Data for Accurate Shear Stress Prediction in CO2 Sequestration within Saline Aquifers (Smart Proxy Modeling)

This research builds upon the success of a previous project that used a Smart Proxy Model (SPM) to predict pressure and saturation in Carbon Capture and Storage (CCS) operations into saline aquifers. The Smart Proxy Model is a data-driven machine learning model that can replicate the output of a sophisticated numerical simulation model for each time step in a short amount of time, using Artificial Intelligence (AI) and large volumes of subsurface data. This study aims to develop the Smart Proxy Model further by incorporating geomechanical datadriven techniques to predict shear stress by using a neural network, specifically through supervised learning, to construct Smart Proxy Models, which are critical to ensuring the safety and effectiveness of Carbon Capture and Storage operations. By training the Smart Proxy Model with reservoir simulations that incorporate varying geological properties and geomechanical data, we will be able to predict the distribution of shear stress. The ability to accurately predict shear stress is crucial to mitigating the potential risks associated with Carbon Capture and Storage operations. The development of a geomechanical Smart Proxy Model will enable more efficient and reliable subsurface modeling decisions in Carbon Capture and Storage operations, ultimately contributing to the safe and effective storage of CO2 and the global effort to combat climate change

Spartan Daily, October 6, 2003

Volume 121, Issue 27https://scholarworks.sjsu.edu/spartandaily/9893/thumbnail.jp

Quantifying the metabolic capabilities of engineered Zymomonas mobilis using linear programming analysis

BACKGROUND: The need for discovery of alternative, renewable, environmentally friendly energy sources and the development of cost-efficient, "clean" methods for their conversion into higher fuels becomes imperative. Ethanol, whose significance as fuel has dramatically increased in the last decade, can be produced from hexoses and pentoses through microbial fermentation. Importantly, plant biomass, if appropriately and effectively decomposed, is a potential inexpensive and highly renewable source of the hexose and pentose mixture. Recently, the engineered (to also catabolize pentoses) anaerobic bacterium Zymomonas mobilis has been widely discussed among the most promising microorganisms for the microbial production of ethanol fuel. However, Z. mobilis genome having been fully sequenced in 2005, there is still a small number of published studies of its in vivo physiology and limited use of the metabolic engineering experimental and computational toolboxes to understand its metabolic pathway interconnectivity and regulation towards the optimization of its hexose and pentose fermentation into ethanol. RESULTS: In this paper, we reconstructed the metabolic network of the engineered Z. mobilis to a level that it could be modelled using the metabolic engineering methodologies. We then used linear programming (LP) analysis and identified the Z. mobilis metabolic boundaries with respect to various biological objectives, these boundaries being determined only by Z. mobilis network's stoichiometric connectivity. This study revealed the essential for bacterial growth reactions and elucidated the association between the metabolic pathways, especially regarding main product and byproduct formation. More specifically, the study indicated that ethanol and biomass production depend directly on anaerobic respiration stoichiometry and activity. Thus, enhanced understanding and improved means for analyzing anaerobic respiration and redox potential in vivo are needed to yield further conclusions for potential genetic targets that may lead to optimized Z. mobilis strains. CONCLUSION: Applying LP to study the Z. mobilis physiology enabled the identification of the main factors influencing the accomplishment of certain biological objectives due to metabolic network connectivity only. This first-level metabolic analysis model forms the basis for the incorporation of more complex regulatory mechanisms and the formation of more realistic models for the accurate simulation of the in vivo Z. mobilis physiology

Applied Bayesian Networks

A Bayesian Network is a stochastic graphical model that can be used to maintain and propagate conditional probability tables among its nodes. Here, we use a Bayesian Network to model results from a numerical riverine model. We develop an discretization optimization algorithm that improves efficiency and concurrently increases the overall accuracy of the resulting network. We measure accuracy using a new prediction accuracy criteria that includes an a posteriori soft correction. Furthermore, we show that this accuracy quickly asymptotes and begins to show diminishing returns on large data sets

Transport visions network - Report 4 - Vehicles and infrastructure

This is the fourth in a series of reports to be produced by the Transport Visions Network. The Network is a novel venture to project the views of young professionals into the debate concerning the future of transport and its role in society. It is comprised of individuals who are aged 35 or under from universities, consultancies and public authorities both in the UK and overseas.This report examines how vehicles and infrastructure might be used to develop the UK’s surface transport networks of the future. In doing so, it has attempted to highlight the balance between maintaining existing systems and making the best use of technological advances to develop new vehicles and new systems. Technological advances offer the opportunity to increase the capacity that any system of infrastructure can provide. Preferably technology should be harnessed to develop systems that increase the number of people per hour that we move rather than the number of vehicles per hour. Measures such as dedicated lanes and intelligent charging can facilitate this. Similarly, greater support for car sharing and innovative forms of shared vehicle ownership could help achieve such aims. The improvements in throughput in people per hour achieved through these measures may also deliver vastly enhanced energy efficiency per kilometre moved