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2022

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Comparison Of Mechanical And Column Flotation Performances On Recovery Of Phosphate Slimes In Presence Of Nano-Microbubbles, Fatemeh Taghavi, Mohammad Noaparast, Ziaeddin Pourkarimi, Fardis Nakhaei Jan 2022

Comparison Of Mechanical And Column Flotation Performances On Recovery Of Phosphate Slimes In Presence Of Nano-Microbubbles, Fatemeh Taghavi, Mohammad Noaparast, Ziaeddin Pourkarimi, Fardis Nakhaei

Mining Engineering Faculty Research & Creative Works

Fine particle flotation has been one of the main problems in many mineral processing plants. The bubble-particle collision rate is very low for fine particles, which reduces flotation efficiency. Also, the existence of slimes is, generally, detrimental to the flotation process, affecting the selectivity and the quality of the concentrates. Besides, it causes an increase in reagents consumption. Hence, in most of processing plants, some of these particles are transmitted to the tailing ponds to reduce the effects of these problems and increase the selectivity of the process. Esfordi phosphate plant in Iran loses more than 30% of its capacity …

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Re-Crosslinking Particle Gel For Co2 Compliance Control And Co2 Filtration Blocking, Yifu Long, Baojun Bai, Thomas P. Schuman Jan 2022

Re-Crosslinking Particle Gel For Co2 Compliance Control And Co2 Filtration Blocking, Yifu Long, Baojun Bai, Thomas P. Schuman

Patents

The present invention generally relates to the composition of particle gels for CO2 - EOR and CO2 storage . More particularly , CO2 resistant particle gels are provided that can re - crosslink at subterranean conditions . These particle gels can be deployed to improve the conformance of CO , flooding , CO , huff - puff , or Water - Alternative - Gas ( WAG ) . The applications may also involve CO2 storage , such as the blocking of CO2 leakage and similar CO2 processing .

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Hot Rolled Light-Gauge Martensitic Steel Sheet And Method For Making The Same, James W. Watson, Paul Kelly, David C. Van Aken, Christopher Ronald Killmore Jan 2022

Hot Rolled Light-Gauge Martensitic Steel Sheet And Method For Making The Same, James W. Watson, Paul Kelly, David C. Van Aken, Christopher Ronald Killmore

Patents

A hot rolled light - gauge martensitic steel sheet made by the steps comprising : ( a ) preparing a molten steel melt comprising : ( i ) by weight , between 0.20 % and 0.35 % carbon , less than 1.0 % chromium , between 0.7 % and 2.0 % manganese , between 0.10 % and 0.50% silicon , between 0.1 % and 1.0 % copper , less than 0.05 % niobium , less than 0.5 % molybdenum , and silicon killed containing less than 0.01 % aluminum , and ( ii ) the remainder iron and impurities result …

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Fiber Assisted Re-Cross-Linkable Polymer Gel And Preformed Particle Gels For Fluid Loss And Conformance Control, Baojun Bai, Ze Wang, Zhe Sun, Jingyang Pu, Thomas P. Schuman Jan 2022

Fiber Assisted Re-Cross-Linkable Polymer Gel And Preformed Particle Gels For Fluid Loss And Conformance Control, Baojun Bai, Ze Wang, Zhe Sun, Jingyang Pu, Thomas P. Schuman

Patents

Described herein are compositions useful for controlling fluid flow, for example in a target zone of a subterranean environment, and methods of forming and using the same. The composition generally comprises a quantity of fibers and a quantity of swellable particles, which may be dispersed in a carrier fluid. The composition may be synthesized in the form of a bulk gel or may be gelatinated during use. The fibers in the compositions provide improved performance as compared to prior PPG and RPPG particle containing compositions. Specifically, the compositions reinforce the re-cross-linked/re-associated hydrogel plug in underground features and support proper rehydration …

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Aluminum-Free Steel Alloys And Methods For Making The Same, Daniel Morye Field, David C. Van Aken Jan 2022

Aluminum-Free Steel Alloys And Methods For Making The Same, Daniel Morye Field, David C. Van Aken

Patents

Disclosed herein are TRIP (transformation induced plasticity) steel alloy thin metal strips or, stated differently, high strength, high ductility steel alloy thin metal strips formed of a composition described herein, being substantially free or free of aluminum. In being substantially free, the aluminum content is equal to or less than 0.01 % by weight.

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3d Printed Zeolite Monoliths For Co2 Capture, Fateme Rezaei, Harshul V. Thakkar Jan 2022

3d Printed Zeolite Monoliths For Co2 Capture, Fateme Rezaei, Harshul V. Thakkar

Patents

Carbon dioxide (CO2 ) capture materials comprising one or more 3D-printed zeolite monoliths for the capture and or removal of CO2 from air or gases in enclosed compartments, including gases or mixtures of gases having less than about 5% CO2 . Methods for preparing 3D-printed zeolite monoliths useful as CO2 capture materials and filters, as well as methods of removing CO2 from a gas or mixture of gases in an enclosed compartment using 3D-printed zeolite monoliths are provided.

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Fuel Cell Having Corrugated Membrane Electrode Assembly, Jonghyun Park Jan 2022

Fuel Cell Having Corrugated Membrane Electrode Assembly, Jonghyun Park

Patents

An electrochemical reaction cell comprising an anode electrode, a cathode electrode, and a membrane electrode assembly (MEA). The MEA is positioned between the anode electrode and the cathode electrode. The anode electrode, the cathode electrode, and the MEA each have a corrugated shape and are contained within a recess of a housing.

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Distributed Process State And Input Estimation For Heterogeneous Active/Passive Sensor Networks, Dzung Minh Duc Tran, Tansel Yucelen, Selahattin Burak Sarsilmaz Jan 2022

Distributed Process State And Input Estimation For Heterogeneous Active/Passive Sensor Networks, Dzung Minh Duc Tran, Tansel Yucelen, Selahattin Burak Sarsilmaz

Patents

Systems and methods are described for estimating a state of a process and an input to the process using a sensor network. Each sensor node in the sensor network is directly to one or more adjacent sensor nodes and indirectly coupled to the remaining sensor nodes through the one or more adjacent sensor nodes. Each sensor node iteratively calculates a new estimated state based on estimations of the state and the input to the process calculated by the sensor node in a previous iteration. The new estimated state is then adjusted based on a difference between a predicted and actual …

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Additive Manufacturing Of Continuous Carbon Fiber-Reinforced Sic Ceramic Composite With Multiple Fiber Bundles By An Extrusion-Based Technique, Ruoyu Chen, Adam Bratten, Joshua Rittenhouse, Ming-Chuan Leu, Haiming Wen Jan 2022

Additive Manufacturing Of Continuous Carbon Fiber-Reinforced Sic Ceramic Composite With Multiple Fiber Bundles By An Extrusion-Based Technique, Ruoyu Chen, Adam Bratten, Joshua Rittenhouse, Ming-Chuan Leu, Haiming Wen

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Due to the high cost, complex preparation process and difficulty in structural design, the traditional methods for carbon fiber reinforced SiC ceramic composite preparation have great limitations. This paper presents a technique for the additive manufacturing multiple continuous carbon fiber bundle-reinforced SiC ceramic composite with core-shell structure using an extrusion-based technique. A conventional nozzle system was modified to print simultaneously a water based SiC paste with continuous carbon fibers. Different levels of binder contents were investigated to optimize the stickiness, viscosity, thixotropy and viscoelasticity of the paste. After sintering, SiC whiskers were generated on the surface of fiber, which is …

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Passive Intermodulation Under Different Spring Contact Conditions, Shengxuan Xia, Emmanuel Olugbade, Yuchu He, Yansheng Wang, Hanfeng Wang, Krishna Rao, Marco Poort, Haicheng Zhou, Warren Lee, Nicholas Mcdonnell, Jonghyun Park, Chulsoon Hwang Jan 2022

Passive Intermodulation Under Different Spring Contact Conditions, Shengxuan Xia, Emmanuel Olugbade, Yuchu He, Yansheng Wang, Hanfeng Wang, Krishna Rao, Marco Poort, Haicheng Zhou, Warren Lee, Nicholas Mcdonnell, Jonghyun Park, Chulsoon Hwang

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Modularized designs have been widely used in today's consumer electronic devices and flexible RF springs are used for electrical connections between the modules. In the meantime, aluminum alloy material becomes a common chassis option. It is well known that the oxidized chassis surface introduces a certain level of nonlinearity when contacted by the springs, as known as passive intermodulation (PIM). PIM is one of the well-known root causes of the RF desensitization (desense). This paper is focused on investigating the relationship between PIM and contact conditions of the springs, especially contact area. The PIM level behavior is explained mathematically by …

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Spatial Transformation Of A Layer-To-Layer Control Model For Selective Laser Melting, Xin Wang, Robert G. Landers, Douglas A. Bristow Jan 2022

Spatial Transformation Of A Layer-To-Layer Control Model For Selective Laser Melting, Xin Wang, Robert G. Landers, Douglas A. Bristow

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Selective Laser Melting (SLM) is an Additive Manufacturing (AM) technique with challenges in its complexity of process parameters and lack of control schemes. Traditionally, people tried time-domain or frequency-domain control methods, but the complexity of the process goes beyond these methods. In this paper, a novel spatial transformation of SLM models is proposed, which transforms the time-domain process into a spatial domain model and, thus, allows for state-space layer-to-layer control methods. In a space domain, this also provides the convenience of modelling laser path changes. Finally, a layer-to-layer Iterative Learning Control (ILC) method is designed and demonstrates the methodology of …

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Two-Level Targeter Convergence Study For Collinear Libration Point Spacecraft Formations, Donna Jennings, Henry J. Pernicka Jan 2022

Two-Level Targeter Convergence Study For Collinear Libration Point Spacecraft Formations, Donna Jennings, Henry J. Pernicka

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Spacecraft formation flying has attracted an increasing amount attention over the past several decades including a growing interest in relative motion at the collinear lib ration points. This current work builds on previous efforts by further developing and characterizing a two-level targeting (TLT) algorithm used to determine relative motion at lib ration points by performing a convergence study. A parametric study was conducted to identify the sensitivity of the algorithm to a variety of inputs and constraints. The parametric study revealed that the two-level targeting algorithm convergence properties significantly improve when using a higher order initialization estimate. The size of …

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Fuel-Rich Hetero-/Homogeneous Combustion Of C3h8/O2/N2 Mixtures Over Rhodium, John Mantzaras, Ran Sui, Rolf Bombach Jan 2022

Fuel-Rich Hetero-/Homogeneous Combustion Of C3h8/O2/N2 Mixtures Over Rhodium, John Mantzaras, Ran Sui, Rolf Bombach

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The catalytic (heterogeneous) and gas-phase (homogeneous) combustion of C3H8/O2/N2 mixtures over rhodium was investigated experimentally and numerically at 5 bar and at fuel-rich equivalence ratios π = 2.0-3.5 relevant to propane Catalytic Partial Oxidation (CPO). In situ spatially-resolved Raman measurements of major gas-phase species concentrations and Planar Laser Induced Fluorescence (PLIF) of formaldehyde were applied in an optically accessible channel-flow reactor to monitor the catalytic and gas-phase processes, respectively, while accompanying 2D simulations were carried out with detailed hetero-/homogeneous chemical reaction mechanisms. Due to the high gas-phase reactivity of propane, homogeneous chemistry could not be ignored over most of the …

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Direct Numerical Simulation Of Acoustic Disturbances In A Hypersonic Two-Dimensional Nozzle Configuration, Nathaniel Hildebrand, Meelan M. Choudhari, Cole P. Deegan, Junji Huang, Lian Duan Jan 2022

Direct Numerical Simulation Of Acoustic Disturbances In A Hypersonic Two-Dimensional Nozzle Configuration, Nathaniel Hildebrand, Meelan M. Choudhari, Cole P. Deegan, Junji Huang, Lian Duan

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Direct numerical simulations (DNS) are performed to study acoustic radiation in a quasi-two-dimensional nozzle with two independents spatially evolving turbulent boundary layers with an edge Mach number of 6. The emphasis of this work is to compare the radiated pressure fluctuations in a geometrically confined environment with those radiated from a single wall in an unconfined setting. The boundary-layer profile of the rms pressure fluctuation scaled by the mean shear stress at the wall is found to be in good agreement with prior flat-plate calculations at similar conditions. However, the normalized rms pressure fluctuation within the freestream p region is …

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3d-Printed Gelatin-Alginate Hydrogel Dressings For Burn Wound Healing: A Comprehensive Study, Fateme Fayyazbakhsh, Michael J. Khayat, Ming-Chuan Leu Jan 2022

3d-Printed Gelatin-Alginate Hydrogel Dressings For Burn Wound Healing: A Comprehensive Study, Fateme Fayyazbakhsh, Michael J. Khayat, Ming-Chuan Leu

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Burn Wound Treatment is Still a Clinical Challenge Due to the Severity of Tissue Damage and Dehydration. among Various Wound Dressings, Hydrogel Materials Have Gained Significant Attention for Burn Wound Treatment in Clinical Practice Due to their Soothing and Moisturizing Activity. in This Study, 3D-Printed Dressings Were Fabricated using Clinically Relevant Hydrogels for Deep Partial-Thickness Burn (PTB) Wounds. Different Ratios of Gelatin and Alginate Mixture Were 3D-Printed and Examined in Terms of Rheological Behavior, Shear Thinning Behavior, Mechanical Properties, Degradation Rate, and Hydration Activity to Tune the Hydrogel Composition for Best Functionality. the Cell-Laden Dressings Were Bioprinted to Evaluate the …

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A Convolutional Neural Network (Cnn) For Defect Detection Of Additively Manufactured Parts, Musarrat Farzana Rahman Jan 2022

A Convolutional Neural Network (Cnn) For Defect Detection Of Additively Manufactured Parts, Musarrat Farzana Rahman

Masters Theses

“Additive manufacturing (AM) is a layer-by-layer deposition process to fabricate parts with complex geometries. The formation of defects within AM components is a major concern for critical structural and cyclic loading applications. Understanding the mechanisms of defect formation and identifying the defects play an important role in improving the product lifecycle. The convolutional neural network (CNN) has been demonstrated to be an effective deep learning tool for automated detection of defects for both conventional and AM processes. A network with optimized parameters including proper data processing and sampling can improve the performance of the architecture. In this study, for the …

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Liquid Core Detection And Strand Condition Monitoring In A Continuous Caster Using Optical Fiber, Deva Prasaad Neelakandan, Dinesh Reddy Alla, Jie Huang, Ronald J. O'Malley Jan 2022

Liquid Core Detection And Strand Condition Monitoring In A Continuous Caster Using Optical Fiber, Deva Prasaad Neelakandan, Dinesh Reddy Alla, Jie Huang, Ronald J. O'Malley

PSMRC Faculty Research

Real-time monitoring of the liquid core position during the continuous casting of steel has been demonstrated using low-cost distributed optical-fiber-based strain sensors. These sensors were installed on the containment roll support structures in the segments of a production continuous caster to detect the position of the solid–liquid interface and monitor the strand condition during the continuous casting. Distributed Fiber Bragg Grating sensors (FBGs) were used in this work to monitor strain at six roll positions in the caster. The sensor performance was first validated by comparing optical strain measurements with conventional strain gauge measurements in the lab. Next, optical strain …

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Measurement Effects In Decision-Making, Devin Michael Burns, Charlotte Hohnemann Jan 2022

Measurement Effects In Decision-Making, Devin Michael Burns, Charlotte Hohnemann

Psychological Science Faculty Research & Creative Works

When participants are shown a series of stimuli, their responses differ depending on whether they respond after each stimulus or only at the end of the series, in what we call a measurement effect. These effects have received paltry attention compared with more well-known order effects and pose a unique challenge to theories of decision-making. In a series of two preregistered experiments, we consistently find measurement effects such that responding to a stimulus reduces its impact on later stimuli. While previous research has found such effects in noncumulative tasks, where participants are instructed only to respond to the most recent …

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Proton Radius: A Puzzle Or A Solution!?, Ulrich D. Jentschura Jan 2022

Proton Radius: A Puzzle Or A Solution!?, Ulrich D. Jentschura

Physics Faculty Research & Creative Works

The proton radius puzzle is known as the discrepancy of the proton radius, obtained from muonic hydrogen spectroscopy (obtained as being roughly equal to 0.84 fm), and the proton radius obtained from (ordinary) hydrogen spectroscopy where a number of measurements involving highly excited states have traditionally favored a value of about 0.88 fm. Recently, a number of measurements of hydrogen transitions by the Munich (Garching) groups (notably, several hyperfine-resolved sublevels of the 2S-4P) and by the group at the University of Toronto (2S-2P 1/2) have led to transition frequency data consistent with the smaller proton radius of about 0.84 fm. …

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Pro-Socially Motivated Knowledge Hiding In Innovation Teams, Rachel Hilliard, James English, Maébh Coleman Jan 2022

Pro-Socially Motivated Knowledge Hiding In Innovation Teams, Rachel Hilliard, James English, Maébh Coleman

Articles

No abstract provided.

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Exploring Pedagogic And Practical Intersections Of Academic Writing Support For Students In Higher Education, Maria-Jose Gonzalez, Roisin Donnelly Jan 2022

Exploring Pedagogic And Practical Intersections Of Academic Writing Support For Students In Higher Education, Maria-Jose Gonzalez, Roisin Donnelly

Articles

This case study explores undergraduate and postgraduate student perceptions of the nature and effectiveness of academic writing provision and practice in a university in Ireland. Its focus isthe Academic Writing Centre (AWC), a university-wide initiative to support all students. It discusses students’ perceptions as to the academic writing support provided at the AWC and students’ preferred writing strategies. The research design used a qualitative approach to gather data on students’ perceptions of the academic writing support received at one-to-one consultations. Data was gathered via a student survey (n=21) sent to all students who avail of the AWC’s one-to-one support. Findings …

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Investigating How Speech And Animation Realism Influence The Perceived Personality Of Virtual Characters And Agents, Sean A. Thomas, Ylva Ferstl, Rachel Mcdonnell, Cathy Ennis Jan 2022

Investigating How Speech And Animation Realism Influence The Perceived Personality Of Virtual Characters And Agents, Sean A. Thomas, Ylva Ferstl, Rachel Mcdonnell, Cathy Ennis

Articles

The portrayed personality of virtual characters and agents is understood to influence how we perceive and engage with digital applications. Understanding how the features of speech and animation drive portrayed personality allows us to intentionally design characters to be more personalized and engaging. In this study, we use performance capture data of unscripted conversations from a variety of actors to explore the perceptual outcomes associated with the modalities of speech and motion. Specifically, we contrast full performance-driven characters to those portrayed by generated gestures and synthesized speech, analysing how the features of each influence portrayed personality according to the Big …

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Match-Play Running Demands And Technical Performance Among Elite Gaelic Footballers: Does Divisional Status Count?, Jason Mcgahan, Shane Mangan, Kieran Collins, Con Byrnes Jan 2022

Match-Play Running Demands And Technical Performance Among Elite Gaelic Footballers: Does Divisional Status Count?, Jason Mcgahan, Shane Mangan, Kieran Collins, Con Byrnes

Articles

Match-play running demands and technical performance among elite Gaelic footballers: Does divisional status count? J Strength Cond Res 35(1): 169–175, 2021—The aim of the current study was to compare positional differences in running demands and technical performance variables among elite Gaelic football teams from separate divisions. Data were obtained from a division 1 (26.7 ± 2.9 years, 179.2 ± 21.3 cm, 89.9 ± 21.2 kg) and a division 3 (25.7 ± 3.5 years, 183.0 ± 4.7 cm, 84.4 ± 6.5 kg) team. Match-play running variables were collected using 4-Hz global positioning system (GPS) units (VX Sport; Visuallex Sport, Lower Hutt, …

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The Influence Of Weekly Sprint Volume And Maximal Velocity Exposures On Eccentric Hamstring Strength In Professional Football Players, Sunnan Shah, Kieran Collins, Lewis J. Macgregor Jan 2022

The Influence Of Weekly Sprint Volume And Maximal Velocity Exposures On Eccentric Hamstring Strength In Professional Football Players, Sunnan Shah, Kieran Collins, Lewis J. Macgregor

Articles

No abstract provided.

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Applied Sport Science Of Gaelic Football: A Review, Eoghan Boyle, Shane Mangan, Dominic Doran, Kieran Collins Jan 2022

Applied Sport Science Of Gaelic Football: A Review, Eoghan Boyle, Shane Mangan, Dominic Doran, Kieran Collins

Articles

The current review focuses on Gaelic football literature providing an insight into the physical characteristics of players, the demands of match-play, the injury profile, and nutritional considerations within the game. Since the first review of Gaelic football in 2001, an increased understanding of match dynamics has taken place through the application of movement analysis technology. In recent years, the evolution of the application of sport science provisions within Gaelic football has increased. This has resulted in researchers attempting to bridge the gap between the scientific laboratory and the applied practitioner. Overall, intermittent aerobic fitness remains important during competition, along with …

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Code Free Or Die: Regulations Of Computer Code And The First Amendment, Dawn C. Nunziato Jan 2022

Code Free Or Die: Regulations Of Computer Code And The First Amendment, Dawn C. Nunziato

GW Law Faculty Publications & Other Works

After the San Bernardino terrorist attack in 2015, the FBI sought to enlist Apple in its efforts to acquire potential evidence about the attack by accessing the contents of the cell phone used by the shooter Syed Rizwan Farook. The FBI claimed that the messages, contacts, and other information stored on Farook’s cell phone could lead them to potential co-conspirators who assisted in the attack or who were involved in planning other terrorist activities, or other relevant evidence. The FBI claimed that it needed Apple’s help because the cell phone in question embodied a number of security features familiar to …

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The Common Sense Of A Wealth Tax: Thomas Paine & Taxation As Freedom From Aristocracy, Jeremy Bearer-Friend, Vanessa Williamson Jan 2022

The Common Sense Of A Wealth Tax: Thomas Paine & Taxation As Freedom From Aristocracy, Jeremy Bearer-Friend, Vanessa Williamson

GW Law Faculty Publications & Other Works

Thomas Paine’s writing helped spur the American colonies to independence and ensure that the new nation would be a republic, not a monarchy. In light of the renewed interest in wealth taxes, this article provides a close examination of Thomas Paine’s wealth tax proposal in the second volume of The Rights of Man. Unlike Paine’s proposal to tax inheritances, his 1792 proposal to tax wealth on an annual basis is often overlooked. The article identifies Paine’s various design specifications, provides original estimates of the impact of Paine’s wealth tax proposal within his own time period and as applied to billionaires …

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Between A Rock And A Hard Place? Ict Companies, Armed Conflict, And International Law, Arturo J. Carrillo Jan 2022

Between A Rock And A Hard Place? Ict Companies, Armed Conflict, And International Law, Arturo J. Carrillo

GW Law Faculty Publications & Other Works

What is an ICT company to do when operating in the midst of international armed conflict like the one raging in Ukraine? How should tech company executives respond to urgent government demands – often conflicting -- to propagate or censor online content arising in the context of war, including disinformation? And what of their demands to access the personal data or communications of users, ostensibly to safeguard security but nonetheless presenting the potential for abuse? Governments make difficult demands of ICT companies by seeking to impose heavy restrictions on the free flow of information and data privacy via the latter’s …

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Overcoming Corruption And War -- Lessons From Ukraine's Prozorro Procurement System, Christopher R. Yukins, Steven Kelman Jan 2022

Overcoming Corruption And War -- Lessons From Ukraine's Prozorro Procurement System, Christopher R. Yukins, Steven Kelman

GW Law Faculty Publications & Other Works

After the 2014 uprising against widespread corruption under former Ukrainian President Victor Yanukovych, a group of civic activists and data experts decided to overhaul government procurement. Their efforts produced an open-source e-procurement system, ProZorro (“transparency” in Ukrainian), and a community of citizens and government buyers, Dozorro (“watchdog” in Ukrainian), that analyzes contracting data, flags high-risk deals and irregularities, and reports them to government authorities. Created with the help of the European Bank for Reconstruction and Development and the U.S. Agency for International Development, ProZorro has helped Ukraine save almost $6 billion in public funds since October 2017, according to the …

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Review Of Shucheng Wang, Law As An Instrument: Sources Of Chinese Law For Authoritarian Legality (Cambridge University Press 2022), Donald C. Clarke Jan 2022

Review Of Shucheng Wang, Law As An Instrument: Sources Of Chinese Law For Authoritarian Legality (Cambridge University Press 2022), Donald C. Clarke

GW Law Faculty Publications & Other Works

This brief note reviews Shucheng Wang’s Law as an Instrument: Sources of Chinese Law for Authoritarian Legality. It finds that the author provides a well-informed, in-depth exploration of the sources of Chinese law and offers rich food for thought on these and other questions in the world of Chinese legal studies. The author brings a good sense of the political realities of the Chinese legal system to his study.

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