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Articles 3481 - 3510 of 197913
Full-Text Articles in Entire DC Network
Implementing The Safe System Approach For Speed Management In Utah, Kezia Isabelle Tripp
Implementing The Safe System Approach For Speed Management In Utah, Kezia Isabelle Tripp
Theses and Dissertations
Speed management is central to reducing fatal and serious injury crashes. The Safe System Approach, an emerging roadway safety paradigm in the United States, recognizes human error and vulnerability and focuses on minimizing crash severity through coordinated policy, design, and operational strategies. This thesis examines how Safe System Approach principles can be applied to speed management, with a focus on identifying practical countermeasures and implementation strategies relevant to the Utah Department of Transportation (UDOT). A compendium of practice was conducted to evaluate speed management countermeasures and document how cities and state Departments of Transportation are implementing Safe System Approach-based strategies. …
Acoustic Response Of The Cnt-Reinforced Multilayered Acoustic Foam Composites (Mafc), Trey Brauch
Acoustic Response Of The Cnt-Reinforced Multilayered Acoustic Foam Composites (Mafc), Trey Brauch
Electronic Theses and Dissertations 2020 - Present
Acoustic metamaterials are engineered materials designed to control and manipulate sound propagation. Many such systems incorporate acoustic foams due to their porous structure, low density, and high specific surface area, which promotes efficient sound absorption. However, a major limitation of conventional acoustic foams -particularly open-cell varieties- is their lack of waterproofing, rendering them unsuitable for underwater or moisture-prone environments. To address this limitation, a multilayered acoustic foam composite (MAFC) was developed as a lightweight, waterproof structure with enhanced sound absorption performance. The MAFC consists of five layers: the first and fifth layers are aluminum foam, providing structural integrity; the second …
Efficient Intrusion Detection For Iomt: Integrating Machine Learning, Feature Selection, And Fuzzy Logic, Ghaida Mansour Balhareth
Efficient Intrusion Detection For Iomt: Integrating Machine Learning, Feature Selection, And Fuzzy Logic, Ghaida Mansour Balhareth
Electronic Theses and Dissertations 2020 - Present
The internet of medical things (IoMT) has transformed healthcare by enabling real-time patient monitoring, remote diagnoses, and effective data exchange among connected medical devices and clinical systems. The increasing reliance on interconnected medical equipment has also intensified cybersecurity risks, as resource-constrained devices and wireless communication channels are vulnerable to attacks such as man-in-the-middle, spoofing, data injection, and ransomware. Intrusion Detection Systems (IDSs) play a critical role in mitigating these threats; however, traditional IDS approaches often struggle with high-dimensional IoMT data, class imbalance, and uncertainty in traffic patterns, which can increase false alarms and reduce reliability in safety-critical environments. This dissertation …
Czts Nanoparticles As Cost Efficient Catalysts For Producing Green Hydrogen, Aidan Hau
Czts Nanoparticles As Cost Efficient Catalysts For Producing Green Hydrogen, Aidan Hau
Undergraduate Research Symposium (2026- )
Hydrogen gas is produced to be used as feedstock, fertilizer, and fuel. Traditional hydrogen production produces “gray hydrogen” in a process that uses and releases fossil fuels into the atmosphere. One way to produce “green” hydrogen is with renewable energy technologies that produce hydrogen gas using electrolysis without emitting fossil fuels. In electrolysis, the hydrogen atoms bonded to oxygen in a water molecule are split to produce hydrogen. A typical catalyst for this process would be a precious metal like palladium, which can be costly. In order to make green hydrogen production more affordable, an alternative catalyst composed of CZTS …
Image Processing Technique To Find The Burden Rock Velocity And Its Interdependency On Bench Blasting Parameters – A Case Study, Channabassamma N, Akhil Avchar, Sahas V Swamy, Vedala Rama Sastry, Hemant Agrawale
Image Processing Technique To Find The Burden Rock Velocity And Its Interdependency On Bench Blasting Parameters – A Case Study, Channabassamma N, Akhil Avchar, Sahas V Swamy, Vedala Rama Sastry, Hemant Agrawale
Journal of Sustainable Mining
In any rock engineering or excavation project, optimizing blast design is essential for controlling post-blast phenomena such as flyrock, burden throw, and burden rock velocity (BRV). This study investigates the dynamic response of BRV in bench blasting operations by employing a high-speed camera and ProAnalyst software to quantify rock displacement. The relationships between BRV and key blast parameters, number of holes (NH), explosive charge per hole (EPH), total explosive charge (TEC), stiffness ratio (K), and stemming ratio (STR), were analyzed to identify linear or non-linear trends. Non-linear trends, …
Design And Modeling Of A Piezoelectric Bimorph Energy Harvester For Automotive Structural Vibrations, Ali Abu Shawish
Design And Modeling Of A Piezoelectric Bimorph Energy Harvester For Automotive Structural Vibrations, Ali Abu Shawish
Thesis/ Dissertation Defenses
The focus of this thesis is on the design and modelling piezoelectric bimorph energy harvesters for vehicular utilization, particularly on harvesting energy from local structural vibrations of automotive components. The vibrations resulted from road–tire interaction and drivetrain dynamics offer the potential for harnessing electrical energy for low power electronic systems when coupled with low damping resonance harvesting devices. The main purpose of this thesis is to evaluate the potential of a piezoelectric bimorph cantilever tuned to 100–300 Hz local automotive structural vibrations for electrical energy harvesting, and to analyze its actual performance under realistic excitation conditions. The harvester's dynamic response, …
Modeling Flood-Induced Cascading Disruptions In The Indian Electronics Supply Chain Using Influence Network Analysis, Surendra Orupalli, Hiroki Sayama
Modeling Flood-Induced Cascading Disruptions In The Indian Electronics Supply Chain Using Influence Network Analysis, Surendra Orupalli, Hiroki Sayama
Northeast Journal of Complex Systems (NEJCS)
This study investigates flood induced disruptions in the Indian electronics supply chain using influence network analysis. Monsoon floods are recurring hazards that significantly impact economic activities, logistics, and industrial productivity. This study integrates district-level rainfall data (2020 to 2025) with supply chain network models to quantify cascading failures. The methodology applies rainfall thresholds (≥ 300 mm/month) to identify flood-prone districts and constructs a stochastic influence matrix representing inter-firm dependencies. Flood propagation dynamics are modeled iteratively with a propagation coefficient (α = 0.6) and convergence threshold (ε = 10⁻⁴). The resulting disruption profiles are mapped onto company-level revenues calibrated to India-specific …
Toward Human-Like Robot Behavior In Co-Manipulation: Learning From Human Dyad Performance, Adam Kenneth Jackson
Toward Human-Like Robot Behavior In Co-Manipulation: Learning From Human Dyad Performance, Adam Kenneth Jackson
Theses and Dissertations
Co-manipulation requires two or more agents to coordinate through a shared object while exchanging information through motion and force. Although this capability is routine for humans, robotic systems still struggle to participate in such interaction naturally and effectively. This thesis addresses that gap by studying human co-manipulation behavior, developing methods to quantify performance, collecting a leader-follower dataset that isolates haptic communication, and training data-driven controllers from human demonstrations. First, cumulative and real-time metrics were developed to quantify human dyad performance. In particular, the behavioral modes "quickly" and "smoothly" were formulated as measurable performance objectives using completion time and squared jerk. …
3d Printed Microfluidic Nonlinear Structures For Implementing Lab-On-A-Chip Integrated Logic Control, Marshall J. Rawlins
3d Printed Microfluidic Nonlinear Structures For Implementing Lab-On-A-Chip Integrated Logic Control, Marshall J. Rawlins
Theses and Dissertations
Microfluidic devices are individual chips that manipulate small quantities of fluid to perform, for example, biomedical assays. They provide a compact apparatus for conducting chemical processes while using only micro-liter quantities of potentially expensive chemical reagents. Continued research in microfluidics has brought significant achievements in reducing microfluidic feature sizes, allowing for microfluidic systems to be more densely packed and designed for more complex chemical assays. However, this comes with the need for additional control inputs which require additional external equipment to generate the control inputs. This leads to crowding of external inputs, or an increase in chip volume to accommodate …
Physics-Based And Data-Driven Low-Order Modeling Of Centrifugal Compressors, Chase Oliphant
Physics-Based And Data-Driven Low-Order Modeling Of Centrifugal Compressors, Chase Oliphant
Theses and Dissertations
Centrifugal compressors serve as critical components across many applications, yet their design and performance prediction present significant challenges. While computational fluid dynamics provides high-fidelity predictions of compressor behavior, its prohibitive computational cost renders it impractical for preliminary design phases where rapid exploration of the geometric and operating space is essential. Conversely, existing low-order models have enabled efficient performance estimation but suffer from limited accuracy and poor interpretability, particularly when applied to novel geometries or off-design operating conditions. This dissertation addresses these limitations through three complementary contributions that bridge the gap between high-fidelity CFD and preliminary design tools. The first contribution …
Three Degree Of Freedom Wave Energy Converter Design For Resonant Motion, Greg Ballen, David G. Wilson, Rush Robinett, Shangyan Zou, Wayne Weaver
Three Degree Of Freedom Wave Energy Converter Design For Resonant Motion, Greg Ballen, David G. Wilson, Rush Robinett, Shangyan Zou, Wayne Weaver
Michigan Tech Publications
As multiple-degree-of-freedom (3-DOF) wave energy converters (WECs) have demonstrated the ability to produce more power than single-degree-of-freedom devices, the challenge of designing buoys for efficient energy harvesting has increased in complexity. In this paper, a cylindrical WEC is designed to naturally resonate in surge, pitch, and heave modes at a specific target frequency of 0.2 Hz. By utilizing a penalty-based optimization method to balance buoyancy requirements with natural resonance, the design achieves minimal control force input, thereby reducing fluctuations in energy output and local energy storage requirements. The performance is evaluated under irregular sea states using a Bretschneider spectrum. Results …
Harnessing Phase Engineered Porous Mxene-Tio2 In Polyamide Reverse Osmosis Membranes For Enhanced Short- And Long Chain Pfas Removal From Water, Roham Ghanbari, Javad Farahbakhsh, Ahmad Najafidoust, Ratish Permala, Stefan Iglauer, Shervin Kabiri, Masoumeh Zargar
Harnessing Phase Engineered Porous Mxene-Tio2 In Polyamide Reverse Osmosis Membranes For Enhanced Short- And Long Chain Pfas Removal From Water, Roham Ghanbari, Javad Farahbakhsh, Ahmad Najafidoust, Ratish Permala, Stefan Iglauer, Shervin Kabiri, Masoumeh Zargar
Research outputs 2022 to 2026
MXenes (2D transition metal nitrides, oxycarbides, carbonitrides, and carbides) hold promise in water treatment due to tunable surface chemistry and hydrophilic nature but restacking in aqueous environments and susceptibility to oxidation remain challenging. Here, we deliberately exploit partial oxidation of Ti3C2Tx MXene to in situ grow TiO2 nanoparticles on its surface, creating a porous, phase-engineered MXene-TiO2 composite. The anatase:rutile ratio was adjusted through different hydrothermal process time (12, 18, and 24 h), after 18 h composition yielding the best balance of surface charge and structural stability. This composite was incorporated into the polyamide (PA) layer of a thin-film composite reverse …
Development Of An Experimental Platform For Hydrogen-Propelled Cold Spray, Michael James Katz
Development Of An Experimental Platform For Hydrogen-Propelled Cold Spray, Michael James Katz
Theses and Dissertations
Cold spray (CS) has gained recent interest as an additive manufacturing process. This process uses high pressure propellant gas to accelerate solid-state powder particles through a specialized nozzle, beyond which the powder deposits onto a substrate as a dense coating and without either material undergoing a phase change. Both nitrogen (N2) and helium (He) are commonly used as CS propellants, with He generally yielding superior results at otherwise similar processing conditions. However, performance advantages of He come with a significant drawback: He is a limited resource that may be sensitive to geopolitical conflicts and, in recent history, has been subject …
Hypersonic Impact Method For Aerodynamics And Convective Heating (Hi-Mach) With Sensitivities, Jeremiah Goates, Logan Freeman, Nathan Hoch, Douglas Hunsaker
Hypersonic Impact Method For Aerodynamics And Convective Heating (Hi-Mach) With Sensitivities, Jeremiah Goates, Logan Freeman, Nathan Hoch, Douglas Hunsaker
Mechanical and Aerospace Engineering Student Publications and Presentations
The purpose of this paper is to present the development of an engineering level code for calculating hypersonic aerodynamics and convective heating, HI-Mach. Novel to this paper are the use of analytic methods for streamline tracing and the direct differentiation of geometric sensitivities for both forces and heat load. Independent panel inclination methods calculate the pressure distribution on the surface of a hypersonic vehicle. Normal shock relations provide the thermodynamic state on each panel. Streamlines are integrated using closed-form streamline equations. Flat plate formulas corrected for compressibility calculate the skin friction coefficient and acreage heat flux on each panel. Formulas …
Applied Research In Field Crop Pathology For Indiana, 2020, Darcy E. P. Telenko
Applied Research In Field Crop Pathology For Indiana, 2020, Darcy E. P. Telenko
Purdue University Press Books
Applied Research in Field Crop Pathology for Indiana, 2020 serves as a summary of the applied field crop pathology research trials conducted in 2020 under the direction of the Purdue Field Crop Pathology program in the Department of Botany and Plant Pathology at Purdue University. In Indiana, there are more than 57,600 farms, 16,000 crop producers, and 900 certified crop advisers, Extension educators, and crop-protection industry representatives who manage more than 11.4 million crop-production acres with a total value of $6.3 billion annually. There are more than twenty diseases affecting corn, soybeans, and wheat that may decrease crop production and …
A Comparative Study Of Plans For Residential Building Construction In The United States And Mexico: Analysis Of Processes, Systems, And Materials, Juan Hernandez
Honors Theses
Residential building construction is an essential part of a country’s economy and development. Finding ways to improve aspects of residential building construction can greatly impact the performance and sustainability of residential buildings. This study analyzes the plans for residential building construction in the United States and Mexico. The processes, systems, and materials in each country were investigated to form comparisons between the two countries. Journals and articles containing data on residential building construction in each country were used to gather information on each area of study. Factors such as climate, economy, and politics were also considered as they have direct …
Space-Time Coded Pcm/Fm For Aeronautical Mobile Telemetry, Zachary B. Hilton
Space-Time Coded Pcm/Fm For Aeronautical Mobile Telemetry, Zachary B. Hilton
Theses and Dissertations
This thesis describes the application of a space-time block code for the legacy continuous phase modulation called "PCM/FM" in the IRIG 106 standard to solve the "two-antenna problem". This problem arises when two transmit antennas are used for full spatial coverage at the cost of self-interference caused by the different delays between the transmit antennas and the ground-based antenna. The space-time block encoder is described using bit-level operations on the input data stream. The space-time decoder uses coherent combining and maximum likelihood sequence estimation to produce an estimate of the data sequence. Simulation results for zero and various non-zero differential …
Rioi: A Microwave-Photonic Rf-Interferometric Interrogation Technique For Enhanced Fiber Optic Sensing, Chen Zhu, Ruimin Jie, Chenxi Huang, Jie Huang
Rioi: A Microwave-Photonic Rf-Interferometric Interrogation Technique For Enhanced Fiber Optic Sensing, Chen Zhu, Ruimin Jie, Chenxi Huang, Jie Huang
Electrical and Computer Engineering Faculty Research & Creative Works
Fiber optic interferometric (FOI) sensors are widely recognized for their high sensitivity, design flexibility, and multiplexing capabilities, making them ideal for applications ranging from structural health monitoring to biomedical diagnostics. However, conventional optical-domain interrogation techniques are often limited by the performance constraints of spectrometers. In this work, we present a radiofrequency (RF)-interferometric optical interrogation (RIOI) method for FOI sensors. This approach leverages microwave photonic (MWP) processing to encode the optical interference phase into an RF signal, which is then combined with a reference RF signal to produce a microwave-domain interferogram. By tracking spectral shifts in the RF domain, RIOI achieves …
Public Understanding Of Ai-Enabled Cyber Threats And Its Impact On Cybersecurity Governance In The United States, Charlotte M. Barbrick
Public Understanding Of Ai-Enabled Cyber Threats And Its Impact On Cybersecurity Governance In The United States, Charlotte M. Barbrick
LSU Master's Theses
Artificial intelligence is spreading quickly in workplaces and everyday life, and that fast growth is creating cybersecurity and privacy risks that current laws and organizational practices do not fully address. This thesis asks whether AI-specific knowledge shapes public support for cybersecurity governance of AI-enabled systems in the United States. Using nationally representative survey data from the Pew Research Center’s American Trends Panel (ATP) Wave 119, fielded December 12--18, 2022, I estimate weighted regression models to test how objective AI knowledge shapes support for cybersecurity governance. I also test whether concern about data misuse helps explain that relationship and whether AI …
Effects Of Solvent Type, Storage Time, And Storage Temperature On Free Radical Stability And Concentration In Model Radical Systems And Complex Vegetable Oil Matrices, Rachid Ismail Daboussi
Effects Of Solvent Type, Storage Time, And Storage Temperature On Free Radical Stability And Concentration In Model Radical Systems And Complex Vegetable Oil Matrices, Rachid Ismail Daboussi
Thesis/ Dissertation Defenses
Free radicals are reactive species with unpaired electrons that occur and form within a range of biological, physical, and chemical systems. These highly reactive entities can interact with each other and/or with other molecules present in a mixture, often leading to significant changes in the system. Control over free radical concentration and free radical reactions is necessary in various fields depending on the aim of the process. For instance, free radical addition reactions play an essential role in the synthesis of polymers, where controlled radical behavior is necessary. However, in the thermal cracking of oil, free radical addition reactions are …
Evaluation Of Remote Sensing Soil Moisture Datasets In Arid Regions And Their Prospect For Leak Detection In Water Distribution Systems, Alaa Shakfeh
Thesis/ Dissertation Defenses
This thesis is concerned with the evaluation of satellite-based soil moisture (SSM) datasets in arid regions and their potential application to leak detection in water distribution systems. The work focuses on the SMAP Level-4 soil moisture product and a Sentinel-1 SAR-based (SAR4SM) retrieval framework, used in conjunction with in-situ observations from the International Soil Moisture Network (ISMN) and historical leak records from the Al Ain Distribution Network (AADC), currently part of TAQA Distribution. The main objectives are (i) to quantify the performance of SMAP and SAR4SM surface soil moisture estimates over arid environments against ground-based measurements, and (ii) to develop …
Performance Analysis Of Back-To-Back Multilevel Tnpc Converters For Wave Energy Converters, Kappala Raveendrababu
Performance Analysis Of Back-To-Back Multilevel Tnpc Converters For Wave Energy Converters, Kappala Raveendrababu
Thesis/ Dissertation Defenses
A Wave Energy Converter (WEC) is a device that transforms the kinetic energy of ocean waves into usable electrical energy. Wave energy has the potential to become a major renewable energy source soon, as its energy density is higher than that of solar and wind power, especially as its technology advances. This thesis addresses the integration of wave energy conversion systems into the electrical grid using back-to-back multilevel power converter topologies. The study focuses on the design and implementation of a back-to-back three-level T-type Neutral Point Clamped (T-NPC) converter for a single wave energy conversion system to enhance efficiency, reliability, …
Utilization Of Commercial Phosphonium And Ammonium Ionic Liquids In Enhanced Oil Recovery Of Carbonate Reservoirs, Nada Berrandjia
Utilization Of Commercial Phosphonium And Ammonium Ionic Liquids In Enhanced Oil Recovery Of Carbonate Reservoirs, Nada Berrandjia
Thesis/ Dissertation Defenses
Despite advancements in renewable energy, oil and gas still dominate global energy supply, while a substantial portion of original oil in place (OOIP) remains unrecovered through conventional recovery methods. One of the most effective approaches used to mobilize residual oil is chemical enhanced oil recovery (CEOR) through mechanisms such as reduction of interfacial tension (IFT), alteration of wettability, emulsification, and improved displacement efficiency. Recently, ionic liquids (ILs) have gained interest as alternative CEOR agents due to their tunable structure and superior stability under harsh reservoir conditions. This thesis experimentally investigates the potential of low-cost and commercially available ILs for enhanced …
Comparative Performance Of Polymeric Membrane-Catalytic Combined Module Systems For Efficient Co2 Capture, Yamna Saif Alshamsi
Comparative Performance Of Polymeric Membrane-Catalytic Combined Module Systems For Efficient Co2 Capture, Yamna Saif Alshamsi
Thesis/ Dissertation Defenses
Effective carbon dioxide (CO2) capture is crucial for mitigating climate change. Membrane-based gas absorption systems, particularly those utilizing monoethanolamine (MEA), offer a modular, scalable, and energy-efficient alternative to conventional methods. However, challenges such as membrane wetting, solvent degradation, and mass-transfer limitations hinder their performance.This research investigated the efficiency of polyvinylidene fluoride (PVDF) and polyethersulfone (PES) polymeric membrane contactors for CO2 absorption using MEA under simulated flue gas conditions. A novel approach involved incorporating nanocatalytic material into the absorbent solution to enhance CO2 absorption. Characterization included SEM, FTIR, XRD, permeability, tensile strength, and contact angle measurements, alongside CO2 absorption performance evaluation. …
Sulfate Attack And Microstructural Study Of Self-Compacting Sand Concrete Incorporating Recycled Concrete, S. Boudali, A.M. Soliman, B. Abdulsalam, S. Poncet, Adel Elsafty
Sulfate Attack And Microstructural Study Of Self-Compacting Sand Concrete Incorporating Recycled Concrete, S. Boudali, A.M. Soliman, B. Abdulsalam, S. Poncet, Adel Elsafty
HBRC Journal
This study presents an experimental investigation of the microstructure of Self-Compacting Sand Concrete (SCSC) containing recycled concrete aggregates (RCA) and fine recycled concrete powder (FRCP) under a sulfate attack. SCSC specimens were submerged and stored for one year in a sodium sulfate solution. The microstructure of SCSC was investigated using quantitative X-ray diffraction and SEM analysis performed on samples taken from both the core and surface of the specimens. Also, the impact of different percentages and sizes of recycled aggregates (i.e., varying from nano- up to micro-sized aggregates) on the microstructural properties of SCSC exposed to sulfate attack was evaluated. …
Does What Happens In Vegas Increase Pedestrian Safety? A Longitudinal Study On The Effectiveness Of Pedestrian Bridges, Jalen Paulos, Jalen Paulos, Joaquin Del Mundo, Brock Wentz
Does What Happens In Vegas Increase Pedestrian Safety? A Longitudinal Study On The Effectiveness Of Pedestrian Bridges, Jalen Paulos, Jalen Paulos, Joaquin Del Mundo, Brock Wentz
School of Medicine Research Poster Showcase
Urban populations continue to rise and the frequency that pedestrians are exposed to vehicular traffic continues to increase. The result is an increase in automobile versus pedestrian collisions. This study aims to determine the efficacy of pedestrian bridges in reducing the rates of automobile-pedestrian collisions. Data for all automobile versus pedestrian collisions and injuries from July of 1997 through December of 2023 at four distinct intersections along Las Vegas Boulevard were retrieved from the Nevada Department of Transportation. These sites were chosen because of their historically high rates of automobile versus pedestrian incidents and the construction of pedestrian bridges at …
Fabrication Of Su-8 Electrically Actuating Membranes, Tyler James Adams
Fabrication Of Su-8 Electrically Actuating Membranes, Tyler James Adams
Theses and Dissertations
This work investigates SU-8 polymer waveguides as a fabrication platform for integrated optical structures. Surface roughening using oxygen plasma etching is used to induce controlled optical scattering, enabling direct observation of guided modes and providing insight into waveguide behavior. Building on this, waveguide geometry is modified through an elevated scattering region (ESR) design, which reduces transition losses and improves scattering efficiency by preserving optical volume within the guiding region. In parallel, suspended SU-8 membranes are fabricated and evaluated for mechanical stability, providing a platform for integrating optical structures beyond conventional substrate-bound configurations. These membranes are further characterized under electrostatic actuation, …
Democratizing National Water Model Streamflow Forecasts Through Cross-Platform Mobile Application Development, Jerson J. Garcia
Democratizing National Water Model Streamflow Forecasts Through Cross-Platform Mobile Application Development, Jerson J. Garcia
Theses and Dissertations
The National Water Model (NWM) provides operational streamflow forecasts for 2.7 million stream reaches across the continental United States, yet technical barriers prevent widespread public access to this hydrological infrastructure. This paper presents RIVR (River Information Visualization and Risk), a cross-platform mobile application that transforms National Water Model forecasts into an accessible interface for non-technical users. Built with Flutter, the application deploys to iOS and Android from a single codebase and integrates NOAA forecast APIs, CIROH return-period thresholds, and interactive vector-tile mapping. Performance evaluation across six metrics: application size, startup time, memory consumption, rendering frame rates, API response times, and …
Sulfuric Acid Mist Generation, Calculation, And Suppression Mechanism And Methods In Electrowinning: A Review, Ashish Kakoria, Mirza Muhammad Zaid, Guang Xu
Sulfuric Acid Mist Generation, Calculation, And Suppression Mechanism And Methods In Electrowinning: A Review, Ashish Kakoria, Mirza Muhammad Zaid, Guang Xu
Mining Engineering Faculty Research & Creative Works
This review discusses the events of acid mist production at the final stage of hydrometallurgical metal production in copper electrowinning. This review entails the complete process of oxygen bubble generation on the anode and its stages to form into acid mist at the surface of the electrolyte. When these bubbles burst at the solution/air interface, fine acid-containing liquid droplets become airborne and spread throughout the workspace, with the impact factors suppressing the acid mist produced during the process. Also, parameters such as bubble size, temperature, surface tension, and visco-elasticity also affect the acid mist. Sulfuric acid affects the tank houses …
Hypertext Transfer Protocol Fingerprinting: Techniques For Attacker-In-The-Middle Proxy Detection, Evasion, And Counter-Evasion, Jensen George Wood
Hypertext Transfer Protocol Fingerprinting: Techniques For Attacker-In-The-Middle Proxy Detection, Evasion, And Counter-Evasion, Jensen George Wood
Theses and Dissertations
Attacker-in-the-middle (AitM) phishing toolkits have emerged as a critical threat to enterprise and individual security by enabling adversaries to bypass multi-factor authentication (MFA) and compromise cloud-based accounts at scale. Traditional detection techniques--such as IP blocklists or content-based detection methods--are often ineffective against these increasingly sophisticated attacks. We propose a novel method that detects malicious proxies by identifying artifacts they introduce into HTTP request headers. To evaluate our approach, we systematically analyze traffic passed through several open-source AitM toolkits and proxies, identifying distinct modifications to header structures and content, then formalize these features as YARA rules for automated use. To validate …