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Full-Text Articles in Engineering

Experimental Study Of High-Speed Boats With Suspended Flaps For Reducing The Slamming Forces, Mohamed Raafat Amer May 2020

Experimental Study Of High-Speed Boats With Suspended Flaps For Reducing The Slamming Forces, Mohamed Raafat Amer

Theses and Dissertations

This thesis consists of two parts. In the first part a small-scale high-speed monohull boat was fitted with a suspended flap under the bottom. The author tested shock absorbers for this boat, and worked on data analysis from a few initial test runs. The boat tests were performed during a few hours in a single day and the data are far too scarce to draw any conclusions. The second part of the thesis concerns multi-body numerical analysis of a suspension boat that consists of an airborne centerhull and four suspended sponsons.

No simulations of boat dynamics in waves were performed ...


Mechanical Behavior And Characterization Of Sls Processed Pa-11 For Pa-11/Silica Nanocomposites, Gabrielle Esposito Jan 2020

Mechanical Behavior And Characterization Of Sls Processed Pa-11 For Pa-11/Silica Nanocomposites, Gabrielle Esposito

Theses and Dissertations

Selective laser sintering (SLS) continues to be a promising additive manufacturing process, in which three dimensional shapes are produced through laser sintering and resurfacing of a powder bed. The structural changes of a polyamide 11/carbon black (PA11/CB) powder during a UV-laser sintered printing process were analyzed to ultimately serve as a benchmark for a PA11/CB/SNP nanocomposite printed material. Samples printed with increasing laser area energy density were compared in terms of crystalinity, melt temperature, tensile behavior, essential work of fracture, density, molecular weight and amorphous chain rigidity. A molecular weight increase is found to occur in ...


New Combined Machine Learning And Estimation/Detection Approaches For Ieee 1588 And Passive Radar, Anantha Krishna Karthik Nagarajan Jan 2020

New Combined Machine Learning And Estimation/Detection Approaches For Ieee 1588 And Passive Radar, Anantha Krishna Karthik Nagarajan

Theses and Dissertations

Signal detection and estimation theory attempts to recover useful information from data corrupted by random perturbations. On the other hand, unsupervised learning theory tries to find unknown patterns in a data set without any preexisting labels. The presented research investigates the application of signal detection, estimation and unsupervised learning theory to two problems of significant practical interest: robust time synchronization over packet-switched networks, and passive multiple-input-multiple-output (MIMO) radar networks. Under the first topic, we describe new robust clock synchronization algorithms for IEEE 1588, a widely used time synchronization protocol for packet-switched networks. In the second topic, we present new target ...


Association Of Cholera Toxin With Vibrio Cholerae Outer Membrane Vesicles, Elnaz Rasti Boroujeni Jan 2020

Association Of Cholera Toxin With Vibrio Cholerae Outer Membrane Vesicles, Elnaz Rasti Boroujeni

Theses and Dissertations

Toxigenic Vibrio cholerae is the causative organism responsible for cholera, an infectious disease characterized by acute watery diarrhea. Cholera toxin (CT), the primary virulence factor of V. cholerae, is a prototypical AB5 toxin secreted through the type II secretion pathway. Upon secretion, the toxin initiates endocytosis through the interaction of the CTB subunit with the GM1 ganglioside receptor on the small intestinal cells. In addition to the secretion of the toxin in the free, water-soluble form, V. cholerae secrete biologically active CT in association with outer membrane vesicles (OMVs). OMVs are naturally released spherical buds of the outer membranes of ...


Design, Fabrication, Characterization And Modeling Of Cmos-Compatible Ptse2 Mosfets, Kuanchen Xiong Jan 2020

Design, Fabrication, Characterization And Modeling Of Cmos-Compatible Ptse2 Mosfets, Kuanchen Xiong

Theses and Dissertations

For the last 50 years, Si metal-oxide-semiconductor field-effect transistors (MOSFETs) have undergone tremendous development under the Moore’s law. However, it has become more and more difficult to continue the scaling due to the limitation of Si quantum confinement when the gate length is less than 5 nm.

Two-dimensional (2D) atomic-layered materials may replace Si in future-generation ultra-thin-body, low-power, and high-performance MOSFETs. However, for any 2D material to replace Si, it must not only have high mobility and sizable bandgap, but also be manufacturable. Graphene has high mobility but no bandgap. MoS2 has sizable bandgap but low mobility. Black phosphorus ...


Thermal Modeling Of Mixed Hydrophilic And Hydrophobic Surfaces, Brian Douglas Frymyer Jan 2020

Thermal Modeling Of Mixed Hydrophilic And Hydrophobic Surfaces, Brian Douglas Frymyer

Theses and Dissertations

Dropwise condensation on super hydrophobic surfaces have the potential of obtaining an order of magnitude higher heat transfer than film formation and could be used for water harvesting. It can also help in desalinization and reducing cooling tower drift. Dropwise condensation could decrease the temperature difference required and thus reduce the size of condensers. A model of condensation on highly hydrophobic surfaces is presented to gain better understanding of key parameters impacting droplet growth, allow direct calculation of mass collection and heat transfer of individual droplets, and evaluation of bulk surface performance. The thermal analysis includes rapid micro droplet growth ...


Quantitative Scanning Microwave Microscopy Of A Biological Cell, Xin Jin Jan 2020

Quantitative Scanning Microwave Microscopy Of A Biological Cell, Xin Jin

Theses and Dissertations

The electromagnetic properties of a live biological system are extremely important to many medical applications. While information about electromagnetic properties of tissues are available in the literature, little or no data are available for a single cell or subcellular structures. Microwave biological/cell detection has been demonstrated to be useful and promising in many medical applications due to its internal properties such as non-invasive, fast and label-free. However, the spatial work dimension, therefore the resolution, of the state-of-the-art electrical measurement and detection techniques is limited. To further bring the spatial resolution of the electrical characterization technique down to the sub-cellular ...


The Design Of Tribological Composites For Multifunctional Applications: Model Development And Topology Optimization, Xiu Jia Jan 2020

The Design Of Tribological Composites For Multifunctional Applications: Model Development And Topology Optimization, Xiu Jia

Theses and Dissertations

As a result of the significant economic and environmental burdens caused by wear, extensive research has been conducted to understand, predict, and control wear to achieve desired performance and lifetimes for tribological systems. Sliding interfaces in many tribological systems must also be multifunctional, prompting the need to optimize for a range of properties and processes. Composites serve as great multifunctional candidates for targeted properties and performance: including mechanical, thermal, electrical, and chemical. However, current material selection and design processes for tribological composites are often trial-and-error, time-consuming and involve significant material and energy waste. This dissertation presents a new design framework ...


Inversion Of Sucrose By Invertase And The Separation Of Fructose And Glucose By Ion Exchange Chromatography, Jack Wade Mcdermott Jan 2020

Inversion Of Sucrose By Invertase And The Separation Of Fructose And Glucose By Ion Exchange Chromatography, Jack Wade Mcdermott

Theses and Dissertations

The primary goal of this thesis is to present a fundamental understanding of ion exchange chromatography and enzyme kinetics. Both techniques are explored through simple examples such as the inversion of sucrose by invertase as well as the separation of fructose and glucose by ion exchange chromatography. Enzymes are biocatalysts that allow biological systems to function, which can also be utilized for a variety of industrial reactions. Ion ex-change chromatography is widely implemented in the pharmaceutical and biotechnology industries as well as by environmental industry, or for water filtering by consumers in their homes.

The hydrolysis of sucrose is catalyzed ...


Life-Cycle Environmental Assessment Of A1010 And Carbon Steel Girder Bridges, Cheng Yuan Jan 2020

Life-Cycle Environmental Assessment Of A1010 And Carbon Steel Girder Bridges, Cheng Yuan

Theses and Dissertations

This thesis presents life-cycle environmental assessment (LCEA) for carbon and A1010 steel girder bridges. This thesis setup a quantitative life-cycle environmental impacts model to help decision makers to choose the appropriate material for steel girder bridges under different environmental conditions. The overall LCEA process is structured according to ISO 14040 and ISO 14042 which are talking about the life-cycle impact assessment of structures. The LCEA process includes the product category rules development, life-cycle inventory analysis and life-cycle impact analysis. Mote-Carlo simulation is used for inventory and impact analysis and Multi Criteria Decision Aid (MCDA) method is used to determine the ...


On The Cyclic Inelastic Behavior And Shakedown-Based Design Of Metallic Materials And Structures: Analysis And Experiments, Ismail Soner Cinoglu Jan 2020

On The Cyclic Inelastic Behavior And Shakedown-Based Design Of Metallic Materials And Structures: Analysis And Experiments, Ismail Soner Cinoglu

Theses and Dissertations

Metallic structures in many engineering disciplines are subject to repeated and extreme thermomechanical loading conditions. The conventional design of these types of structures, that are not limited by high-cycle fatigue, employs first-yield criteriain order to avoid failure due to cyclic plasticity. However, yield-limited designs often fail to produce acceptable solutions for multifunctional structures in extreme environments. In order to overcome these limitations and capitalize on the elastoplasticload-bearing reserve, this dissertation analytically, numerically, and experimentally demonstrates inelastic design methods that exploit shakedown for metallic structures. Several analytic and numerical case studies are presented that are relevant to aerospaceand civil engineering applications ...


A New Rll Code For Visible Light Communication System, Yu Chen Dec 2019

A New Rll Code For Visible Light Communication System, Yu Chen

Theses and Dissertations

Visible light communications (VLC) based on light-emitting diodes (LED) are receiving growing interest in academia and in industry due to its many desirable advantages: high data rate over unregulated broad spectrum, cost-effectiveness (data transmission achieved with little additional cost to illumination), security (no eavesdropping or jamming from outside intruders), and little electro-magnetic (EM) pollution. A vast variety of applications are being seriously explored for VLC, including vehicle-to-vehicle communication using headlights and smart transport systems, indoor position detection and tracking, image sensor communication, and indoor video streaming. A big technical challenge for VLC is the need to suppress severe inter-symbol interference ...


Dielectric Spectroscopy Of Biological Samples, Xiao Ma Dec 2019

Dielectric Spectroscopy Of Biological Samples, Xiao Ma

Theses and Dissertations

For the first time, the impedance spectrum of live Jurkat T-lymphocytes human cells was characterized in a single sweep spanning six decades of frequency from 9 kHz to 9 GHz. The ultrawide bandwidth bridged the traditional impedance spectroscopy at kilohertz to megahertz frequencies with the recently developed microwave dielectric spectroscopy, which can probe the cell interior without being hindered by the cell membrane. Based on the measured scattering parameters and a simple cell model, an equivalent circuit of four nondispersive elements, including membrane resistance, membrane capacitance, cytoplasm resistance, and cytoplasm capacitance, was extracted and found sufficient to explain the so-called ...


Dynamic Thermal Line Rating Estimation Using Live Regional Weather Data, Chaohan Feng Dec 2019

Dynamic Thermal Line Rating Estimation Using Live Regional Weather Data, Chaohan Feng

Theses and Dissertations

The ampacity (thermal rating) of an overhead conductor depends on the meteorological conditions around the conductor and is time-varying. The estimation of the dynamic thermal line ratings (DTLRs) of regional overhead conductors is of great significance for making efficient use of the transfer capability of regional power grids thus benefiting the security and economic performance of power systems. By the historical hourly live regional weather data and the historical minutely micrometeorological data of the overhead conductor, the correlation and deviation distribution between these two datasets in air temperature and solar radiation are analyzed, then a DTLR estimation method using the ...


A Molecular View Of Self-Assembly And Liquid-Liquid Phase Separation Of Intrinsically Disordered Proteins, Gregory Legrand Dignon Sep 2019

A Molecular View Of Self-Assembly And Liquid-Liquid Phase Separation Of Intrinsically Disordered Proteins, Gregory Legrand Dignon

Theses and Dissertations

Intracellular compartmentalization of biomolecules into non-membrane-bound compartments, commonly referred to as membraneless organelles (MLOs), has been observed for over a century. The past decade has seen a massive surge of research interest on this topic due to evidence that a liquid-liquid phase separation (LLPS) process is responsible for the assembly of biomolecules into liquid-like compartments constituting MLOs. Since the initial discovery, dozens of cellular systems have been explored with this in mind, and have also been shown to have liquid-like properties, owing several unique functions to their liquid-like nature. MLOs such as stress granules may spontaneously form in response to ...


Amps Based Rheology Modifier For Personal Care Industry, Lincy Chandanasseril Gurusamy Aug 2019

Amps Based Rheology Modifier For Personal Care Industry, Lincy Chandanasseril Gurusamy

Theses and Dissertations

Rheology modifiers play an important role in formulating personal care products by providing rheology to the components it is added to. Most skin care formulations are oil in water systems which require rheology modifiers that are hydrophilic in nature such as polymeric rheology modifiers. Some of the polymeric rheology modifiers provide rheology through associations whereas others impart thickening efficiency through hydrodynamic volume increase. There is a potential in developing polymeric rheology modifiers through combination of different chemistries such as Polyacrylate based comonomers copolymerized with modified sulfonic acid chemistry. In this case study, gels prepared from three polyacrylate and 2-acrylamido-2-methyl-propanosulfonic acid ...


3d Printing With Peptide-Polymer Conjugates For Single-Step Fabrication Of Spatially Functionalized Scaffolds, Hafiz Busari Aug 2019

3d Printing With Peptide-Polymer Conjugates For Single-Step Fabrication Of Spatially Functionalized Scaffolds, Hafiz Busari

Theses and Dissertations

Each year, millions of people worldwide suffer from organ failure or tissue loss due to injury, disease, or congenital malformation. With a progressively aging population and limited supply of donor tissues and organs, there is increasing demand for therapies to regenerate or replace tissues long-term. Tissue engineering has emerged as a promising approach to restore, maintain, or improve damaged tissues or whole organs by providing lab-grown replacements or promoting tissue regeneration. Biodegradable polymer-based scaffolds are widely used in tissue engineering strategies to provide support during early stages of regeneration and are commonly functionalized with various chemical groups or bioactive cues ...


Three-Position Dimensional Synthesis Of Four-Bar Mechanism For Function Generation Using Fuzzy Logic Mathematics, Ahmed Alhindi Aug 2019

Three-Position Dimensional Synthesis Of Four-Bar Mechanism For Function Generation Using Fuzzy Logic Mathematics, Ahmed Alhindi

Theses and Dissertations

Dimensional synthesis of the four-bar mechanism could not be determined precisely due to many constraints such as manufacturing tolerance, joint clearance, thermal deformation, the deflection and so on. All of these constraints are included in the uncertainty of the dimensions of the four-bar mechanism. In this research, this uncertainty will be modeled based on the fuzziness one of the precision points of Freudenstein's equation that builds intervals of link’s dimensions with membership functions. They represents the probability of the dimensions value depending on the uncertainty of the positions of the precision point itself rather than uncertainty of the ...


The Tribological Properties Of Gallium Nitride Under Various Environmental Factors, Zhaohua Chang Aug 2019

The Tribological Properties Of Gallium Nitride Under Various Environmental Factors, Zhaohua Chang

Theses and Dissertations

The propose purpose of this work is to understand the wear mechanisms under different condition of III-V nitride semiconductor materials (GaN, AlN) under different environmental conditions ,such as the water environmentsubmerged water, the influence ofsubmerged isopropyl alcohol, and ambient airthe higher range of the sliding speed. Previous studies proved the GaN has a ultralow wear which is approaching wear rateshave shown ultra-low wear of GaN with wear rates approaching reported for diamond . [1]. We have already studiedThoughAlthough previous investigations into the influence of sliding speed and humidity have been done, the sliding speeds were relatively low (< 1 m/s) and the influence of water in a fully submerged state has not been done. the influence of the sliding speed, humidity of the environment crystallographic orientation, and coating composition, after comparing the result with the conditions we tested this time, we found the trend of the tribological properties (wear rate and coefficient of friction). In this work, The wear rate atwear rates were measured using a custom built bi-directional reciprocating multi station tribometer. Wear rates were measured using scanning white light interferometry (SWLI) and measured after 20,000 sliding cycles. This work shows that the highest wear rate in submerged IPA is the lowest with a wear rate of 3.15456.659799×10^(-7) (mm^3/Nm) after 50,000 cycles . AmbientThe air group is has a slowestlightly higher wear rate of 5.561.910743454×10^(-7) (mm^3/Nm), and the highest one in submerged water is has the highest wear rate of 13.75461599546×10^(-76) (mm^3/Nm) . different condition is 1.59954×10^(-6) (mm^3/Nm) in the water of 20000 sliding cycles, 3.59799×10^(-7) (mm^3/Nm) in the isopropanol alcohol of 20000 sliding cycles, 5.56454×10^(-7) (mm^3/Nm) in air of 20000 sliding cycles, how is the wear rate changing is still unknown. In this experiment, we use a multi-tribometer, and we do the reciprocating sliding tests to reduce the error. We use the Scanning electron microscope (SEM) for wear scars to check if there is any influence of the band bending. We also use Raman Spectroscopy to test if there any GaON or other chemical composition after the sliding t Under the same load, the wear rate increasesd as the speed increaseds. The lowest coefficient friction found in IPA group about 0.1, the air one and water one hasve a similar coefficient of friction about 0.25. Scanning electron microscopy (SEM) and Raman spectroscopy were used to investigate the effects of shear-induced band bending and changes in chemical composition due to sliding.est.


Investigation Of Water Requirement Reduction In Natural Gas Combined Cycle Power Plants Equipped With Carbon Capture System, Saif Watheq Mohammed Ali Aug 2019

Investigation Of Water Requirement Reduction In Natural Gas Combined Cycle Power Plants Equipped With Carbon Capture System, Saif Watheq Mohammed Ali

Theses and Dissertations

Abstract

Reducing water requirements in thermoelectric power plant is a major concern specifically with increasing global warming negative impact on the environment. Furthermore, adding post-combusting-carbon capture unit (PCCC) doubles the amount of water usage through cooling system as has been reported in the literature. Natural gas combined cycle (NGCC) is one of the solutions to reduce water requirements and CO2 emission to the half of its amount in the coal-fired power plant. In the present Ph.D. study, two novel investigations have been performed to decrease water curtailment in the cooling system and its impact on plant performance. The first ...


Understanding The Role Of Morphology And Kinematics In Bio-Inspired Locomotion, Fatma Ayancik Cinoglu Aug 2019

Understanding The Role Of Morphology And Kinematics In Bio-Inspired Locomotion, Fatma Ayancik Cinoglu

Theses and Dissertations

Inspired by the advanced capabilities of fish and other aquatic swimmers, in this thesis, a greater understanding of fish-like propulsion has been sought in terms of morphology and kinematics. Unsteady potential flow simulations on real cetacean flukes reveal that the effect of shape and gait on the swimming performance are not intertwined and are in fact independent. There is one fluke shape that maximizes the propulsive efficiency regardless of the gait and vice versa. It is also determined that the shape and the gait of the fluke have a considerable influence on the wake topology and in turn the Strouhal ...


Model-Based Control Of The Current Density Profile In The Experimental Advanced Superconducting Tokamak (East), Hexiang Wang Aug 2019

Model-Based Control Of The Current Density Profile In The Experimental Advanced Superconducting Tokamak (East), Hexiang Wang

Theses and Dissertations

As worldwide energy consumption increases, the world is facing the possibility of an energy shortage problem. While several approaches have been proposed to slow down this process, which include the improvement of the combustion efficiency of fossil fuels and the introduction of nuclear energy and renewable energy, such as solar, wind, and geothermal energy, a replacement for fossil fuels will eventually be needed. The energy that comes from a nuclear reaction, which includes nuclear fission and nuclear fusion, has a high energy production density (rate of energy produced divided by the area of the land needed to produce it) and ...


Enhancing The Efficiency Of Bio-Inspired Unsteady Propulsion Via Intermittent Swimming, Emre Akoz Aug 2019

Enhancing The Efficiency Of Bio-Inspired Unsteady Propulsion Via Intermittent Swimming, Emre Akoz

Theses and Dissertations

Numerical simulations are conducted to better understand the underlying physics of intermittent swimming. The swimmer is assumed to be effectively splitted into drag producing (the body) and thrust producing (the propulsor) parts and the body is modeled by a surrogate drag law whereas the propulsor is modeled by a hydrofoil. It is shown that the advantage of intermittent swimming over continuous swimming is kinematics dependent. Pitch dominated large amplitude intermittent swimming is shown to save as much as 60% energy over continuous swimming through inviscid mechanisms. Adding heave to the motion reduces the advantage of intermittent swimming, however, the overall ...


Mathematical Modeling Of Flow-Induced Biological Polymer Dynamics Using Coarse-Grained Brownian Dynamics Simulations, Michael John Morabito Aug 2019

Mathematical Modeling Of Flow-Induced Biological Polymer Dynamics Using Coarse-Grained Brownian Dynamics Simulations, Michael John Morabito

Theses and Dissertations

Using Brownian molecular dynamics simulations as well as Random Forest Algorithms, the internal dynamics and biomechanical response of von Willebrand Factor (vWF) multimers subject to shear flows are examined. The coarse-grained multimer description employed here is based on a monomer model in which the A2 domain of vWF is explicitly represented by a non-linear elastic spring whose mechanical response was fit to experimental force/extension data from vWF monomers. This permits examination of the dynamic behavior of hydrodynamic forces acting on A2 domains as a function of shear rate and multimer length, as well as position of an A2 domain ...


Autonomous Decision-Making Schemes For Real-World Applications In Supply Chains And Online Systems, Mohammadreza Nazari Aug 2019

Autonomous Decision-Making Schemes For Real-World Applications In Supply Chains And Online Systems, Mohammadreza Nazari

Theses and Dissertations

Designing hand-engineered solutions for decision-making in complex environments is a challenging task. This dissertation investigates the possibility of having autonomous decision-makers in several real-world problems, e.g., in dynamic matching, marketing, and transportation. Achieving high-quality performance in these systems is strongly tied to the actions that a controller performs in different situations. This problem is further complicated by the fact that every single action might have long-term consequences, so ignoring them might cause unpredicted outcomes. My primary focus is to approach these problems with long-term objectives in mind, instead of only focusing on myopic ones. By borrowing techniques from optimal ...


Integrated Control In Tokamaks Using Nonlinear Robust Techniques And Actuator Sharing Strategies, Andres Pajares Aug 2019

Integrated Control In Tokamaks Using Nonlinear Robust Techniques And Actuator Sharing Strategies, Andres Pajares

Theses and Dissertations

Tokamaks are devices whose final purpose is obtaining energy by means of nuclear fusion reactions. To achieve such purpose, a gas is injected into the tokamak's torus-shaped chamber and heated up to extremely high temperatures, giving birth to a plasma. When the necessary conditions of temperature, density, and confinement time are achieved, virtually inexhaustible energy can be produced in a tokamak.

The main contribution of this dissertation is the development of integrated control strategies for tokamak plasmas. The development of integrated control architectures is necessary for tokamaks to become efficient and commercially competitive power plants. Because a tokamak plasma ...


Learning About Sequence-Dependent Dna/Single-Wall Carbon Nanotube Hybrids, Yoona Yang Aug 2019

Learning About Sequence-Dependent Dna/Single-Wall Carbon Nanotube Hybrids, Yoona Yang

Theses and Dissertations

Since the single-wall carbon nanotubes (SWCNTs) were discovered in 1993, they have attracted significant interest with their extraordinary electrical and optical properties in addition to their remarkable mechanical strength and thermal conductivity. Single-stranded DNA conjugated SWCNT have shown outstanding functionality in terms of dispersibility and biocompatibility. In addition, some special DNA sequences have presented an ability to recognize specific SWCNT species, called recognition sequences. Ion-exchange chromatography and aqueous two-phase (ATP) separation technique have been widely used for SWCNT separation. However, little is known about the use of ATP as an analytical technique. Furthermore, for bio-applications, DNA/SWCNT hybrids have attracted ...


Activating And Testing Of Anthracite Coal For Elemental Hg Adsorption In Simulated Flue Gas, Ruoqi Deng Aug 2019

Activating And Testing Of Anthracite Coal For Elemental Hg Adsorption In Simulated Flue Gas, Ruoqi Deng

Theses and Dissertations

To explore non-energy study uses of coal, an approach of anthracite coal activation and its Hg capture capacity was investigated to establish the feasibility of using anthracite for Hg emissions adsorption in the flue gas of coal-fired power plants. This research project was performed in two stages: an anthracite sample activation stage and a Hg adsorption stage. In the first step, anthracite coal produced by Blaschak Coal Corporation was activated by mixing it with potassium hydroxide (KOH) powder and heated to high temperature. Then hydrochloride acid was applied to remove KOH after the coal powder heating process. The treated samples ...


Fatigue Resistant Rib-To-Floor Beam Connections For Orthotropic Steel Decks, Joseph Saunders, Yixin Chen, Jayne Marks, Ian Hodgson, Richard Sause Jun 2019

Fatigue Resistant Rib-To-Floor Beam Connections For Orthotropic Steel Decks, Joseph Saunders, Yixin Chen, Jayne Marks, Ian Hodgson, Richard Sause

ATLSS Reports

No abstract provided.


Determining Economic Feasibility: A Cost Analysis Of An Adsorption Based Wastewater Treatment Plant, Jason Mak May 2019

Determining Economic Feasibility: A Cost Analysis Of An Adsorption Based Wastewater Treatment Plant, Jason Mak

Eckardt Scholars Projects

This paper presents a three way cost comparison between three different methods of wastewater treatment: a conventional activated sludge plant, an adsorption based plant and a surcharge based system. We assumed plant capacity of 1 million gallons per day and wastewater composition of 2% phenolic compound, BOD5 of 1370 mg/L and TSS of 1400 mg/L. Capital, construction, non-construction, operational and maintenance costs for all three systems were calculated, and their costs discounted over a period of ten years to find the Net Present Value in first quarter 2016 USD. The discount rate used was 8% as that was ...