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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Multivariate Regression And Variance In Concrete Curing Methods: Strength Prediction With Experiments, Haiyan Sally Xie, Sai Ram Gandla, Owen Shi, Pranshoo Solanki Jan 2023

Multivariate Regression And Variance In Concrete Curing Methods: Strength Prediction With Experiments, Haiyan Sally Xie, Sai Ram Gandla, Owen Shi, Pranshoo Solanki

Faculty Publications – Technology

Because concrete strengths and quality are affected by various factors, multivariate regression models are often used to analyze the differences between predicted and target outputs. However, the variableness of a predicted output and how individual input parameters affect prediction reliabilities are still uncertain in practical applications, especially for the prediction of compressive strengths of concrete. This study aims to develop multivariate models for predicting concrete strengths and providing the variance analysis of prediction results by comparisons with experiment outcomes. First, this paper provides an in-depth examination of established variance analysis methods in the context of commonly used multivariate regression models. …


Forensic Analysis Of Tor Browser On Windows 10 And Android 10 Operating Systems, Muhammad Raheel Arshad, Mehdi Hussain, Hasan Tahir, Sana Qadir, Faraz Iqbal Ahmed Memon, Yousra Javed Jan 2021

Forensic Analysis Of Tor Browser On Windows 10 And Android 10 Operating Systems, Muhammad Raheel Arshad, Mehdi Hussain, Hasan Tahir, Sana Qadir, Faraz Iqbal Ahmed Memon, Yousra Javed

Faculty Publications – Technology

Smartphones and Internet have become prevalent in our society with various applications in businesses, education, healthcare, gaming, and research. One of the major issues with the Internet today is its lack of security since an eavesdropper can potentially intercept the communication. This has contributed towards an increased number of cyber-crime incidents, resulting in an increase in users’ consciousness about the security and privacy of their communication . One example is the shift towards using private browsers such as Tor. Tor is a well-recognized and widely used privacy browser based on The Onion Router network that provisions anonymity over the insecure …


Hybrid Energy System With Optimized Storage For Improvement Of Sustainability In A Small Town, Fengchang Jiang, Haiyan Xie, Oliver Ellen Jan 2018

Hybrid Energy System With Optimized Storage For Improvement Of Sustainability In A Small Town, Fengchang Jiang, Haiyan Xie, Oliver Ellen

Faculty Publications – Technology

With the rise of renewable energy comes significant challenges and benefits. The current studies on the incorporation of renewable-energy policies and energy-storage technologies attempt to address the optimization of hybrid energy systems (HESs). However, there is a gap between the currents needs of HES in small towns for energy independence and the understanding of integrated optimization approaches for employing the technology. The purpose of this research is to determine the technical, systematic and financial requirements needed to allow a city or community to become independent of the utilization of traditional energy and develop a reliable program for a clean and …