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Title: Development of Powered Resonance-tube Actuators for Aircraft Flow Control Applications
Creator: Raman, G., Mills, A., Kibens, V.
Date: 2004-12
Publisher: American Inst Aeronaut Astronaut
Description: The present paper addresses both active-flow-control actuator technology development and the demonstration of the effectiveness of actuators...
Show moreThe present paper addresses both active-flow-control actuator technology development and the demonstration of the effectiveness of actuators that could be easily integrated into practical aircraft applications. The actuator used is an adaptation of the Hartmann oscillator. Demonstration experiments that illustrate the effectiveness of this actuator include cavity tone suppression at transonic speeds and the reduction of jet-impingement tones. The actuator concept is based on a high-speed jet aimed at the mouth of a cylindrical tube closed at the other end. The result is a high-amplitude self-sustaining fluctuating field accompanied by an intense narrowband tone, all in the region between the supply jet and the resonance tube. Using unsteady pressure sensors and flow visualization, we explored the effect of varying actuator parameters such as the spacing between the power jet and the resonance tube, supply pressure, resonance-tube depth, diameter, shape, and lateral spacing. By varying the depth of the tube, the frequency could be varied from about 1.6 kHz to over 10 kHz and amplitudes as high as 156 dB (microphone location dependent) were obtained in the vicinity of actuation. To integrate this concept into practical aircraft applications, two generations of a more complex version of this device known as the powered resonance-tube bank (PRTB) were developed and demonstrated. Results indicate that by using high-frequency excitation at 5-kHz suppression levels in excess of 20 dB were consistently obtained over a range of operating conditions in both cavity and impingement flow situations. Based on our results, we have grounds to believe that a properly designed PRTB has significant advantages over conventional actuators such as acoustic, piezo, and oscillatory microstructures.
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Title: Oil Rig Eco Hotel: OilRigEcoHotel_Brochure
Creator: Marcan, Stephanie
Date: 2011, 2011-05
Description: By refashioning the design and programmatic use of an offshore oil rig into a luxury hotel for ecotourists, a new age of responsible travel...
Show moreBy refashioning the design and programmatic use of an offshore oil rig into a luxury hotel for ecotourists, a new age of responsible travel may emerge. By twisting the symbol of oil dependency into an ecologically preserved, environmentally accountable and revenue-producing prototype, the ideals of reuse, energy and environment can be viewed through a new lens. This design creates interesting and innovative living spaces and environments aided by sustainable integrations to create a “living machine” that establishes connections between all building systems as well as inhabitant inputs and outputs resulting in an energy independent habitat.
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Title: LONG-TERM AEROBIC AND ANAEROBIC TRANSFORMATIONS OF ORGANIC MATTER IN ANAEROBICALLY DIGESTED BIOSOLIDS
Creator: Lukicheva, Irina
Date: 2012-12-05, 2012-12
Description: Long-term anaerobic storage of biosolids in a lagoons type of system as a post-treatment to anaerobic digestion is a proven process for...
Show moreLong-term anaerobic storage of biosolids in a lagoons type of system as a post-treatment to anaerobic digestion is a proven process for further pathogen reduction to produce Class A biosolids. At the same time, final biosolids product could develop odors during storage and handling, limiting the flexibility of biosolids utilization. The goal of this research was to study properties of biosolids under different lengths of aging time to determine the stability of final product for its odor potential. Field lagoons of Metropolitan Water Reclamation District of Greater Chicago were sampled to estimate the spatial and temporal variations in the physical-chemical properties and biological stability indicators, namely, total solids, volatile solids, pH, electric conductivity, total Kjeldahl nitrogen, ammonia-N, nitrite/nitrate-N, accumulated oxygen uptake for the 20-hour respirometric test, soluble protein concentration and headspace concentrations of volatile sulfur compounds. The sampling campaign was performed in October 2009. Two types of lagoons were assessed in this study- high-solids lagoons that are loaded with sludge that was previously anaerobically digested and dewatered on the centrifuges, and low-solids lagoons that are loaded with sludge that was previously digested but not dewatered. The analysis of collected data suggested that for the high-solids lagoons the surface layer biosolids (depth of above 0.15 m) undergo long-term aerobic oxidation resulting in higher degree of final product stabilization. The subsurface layers (depth below 0.15 m) are subjected to anaerobic environment where the conditions allow only the initial rapid organic matter degradation approximately within the first year, followed xii by very slow degradation. In addition, microbiological analyses using Fluorescent in situ Hybridization did not indicate active microbial communities in aged biosolids. The performance of low-solids lagoons in the reduction of the biodegradability parameters was shown to be similar to that of the high-solids lagoons. Low-solids lagoons were shown to perform the dewatering function reducing moisture in the digested sludge from initial 2-3% TS to up to 16% TS. Although the lagoon aged biosolids were found to be stable in comparison with other products, such as composts, further aerobic processes taking place after lagoons, such as air-drying and stock-piling could induce further active biological activity. This could potentially result in the odor formation from the air-dried final product. For these reasons, more research is required on the mechanisms promoting further product degradation after lagoons aging.
PH.D in Environmental Engineering, December 2012
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Title: ADVANCING DESIGN SIZING AND PERFORMANCE OPTIMIZATION METHODS FOR BUILDING INTEGRATED THERMAL AND ELECTRICAL ENERGY GENERATION SYSTEMS
Creator: Zakrzewski, Thomas
Date: 2017, 2017-07
Description: Combined electrical and thermal energy systems (i.e., cogeneration systems) will play an integral role in future energy supplies because they...
Show moreCombined electrical and thermal energy systems (i.e., cogeneration systems) will play an integral role in future energy supplies because they can yield higher overall system fuel utilization and efficiency, and thus produce fewer greenhouse gas emissions, than traditionally separate systems. However, methods for both design sizing and performance optimization for cogeneration systems and commercial buildings lag behind the tremendous advancements that have been made in building performance simulation methods. Therefore, the overall goal of this research is to develop and apply novel cogeneration system modeling techniques for optimizing design sizing and dispatch of generation sets that reduce energy use, energy costs, and greenhouse gas emissions. This research is divided into four main research objectives: (1) generalizing cogeneration performance of lean burn natural gas spark ignition reciprocating engines, (2) developing a new Design and Optimization of Combined Heat and Power (DOCHP) systems optimization tool for improving design-sizing of building-integrated and grid-tied CHP systems, (3) demonstrating the utility of the DOCHP tool with several practical applications, and (4) integrating on-site intermittent renewable energy systems into the DOCHP tool to analyze micro-grid applications. This research leverages recent developments in multiple areas of building and system simulation methods. DOCHP advances design sizing and performance optimization methods for building integrated thermal and electrical energy generation systems through the application of an evolutionary artificial intelligence-based genetic algorithm and its ability to resolve to non-linear optimization with discrete constraints while considering non-linear part-load generation set performance curves.
Ph.D. in Civil Engineering, July 2017
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Title: Teacher Knowledge Share (Semester Unknown) IPRO 320: Teacher Knowledge Share IPRO 320 Brochure F08
Creator: Bern, David, Bochantin, Marike, Hartline, Julian, Mccall, Ian, Mick, Emily, Peake, Andrew, Pierce, Alison, Pindrik, Dmitriy, Quinn, Michael, Stanford, Carly, Tilatti, Michael
Date: 2008, 2008-12
Description: The goal of IPRO 320 is to create an online professional network for school teachers at the kindergarten through twelfth grade level to allow...
Show moreThe goal of IPRO 320 is to create an online professional network for school teachers at the kindergarten through twelfth grade level to allow for the sharing of ideas, lesson plans and other professionally relevant information. This is a continuing project which saw limited success in the previous semester in that a functioning web site was constructed based on surveys of public school teachers but it saw very little use. This semester, the planned approach is to build on the research generated last semester by performing additional market research with teachers. Following that, IPRO 320 will rework much of the previous web site by refining some of the features, adding additional ones as the research indicates and improving the website in general, both functionally and aesthetically.
Deliverables
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Title: Interactive Urban Landmark Kiosks for Memorial Walk of Martin Luther King (sequence unknown), IPRO 314 - Deliverables: IPRO 314 Project Plan F09_redacted
Creator: O’leary, Kevin, Petty, Sonya, Qi, Tianshu, Tan, Sophia, Noor, Nashrah, Schleich, Kenneth, Akhtar, Ayesha, Cheng, Eric, Kim, James, Parker, Joseph, Saha, Sougata
Date: 2009-12
Description: The objective of this IPRO is to help the students of Gage Park H.S. bring their vision of a memorial to a historical event into existence.
Spo...
Show moreThe objective of this IPRO is to help the students of Gage Park H.S. bring their vision of a memorial to a historical event into existence.
Sponsorship: Gage Park High School
Deliverables for IPRO 314: Interactive Urban Landmark Kiosks for Memorial Walk of Martin Luther King for the fall 2009 semester.
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Title: Jet Aeroacoustics
Creator: Raman, Ganesh
Date: 2008
Publisher: Multi-Science Pub.

Title: DEVELOPMENT OF AN IMPLICITLY COUPLED ELECTROMECHANICAL AND ELECTROMAGNETIC TRANSIENTS SIMULATOR FOR POWER SYSTEMS
Creator: Abhyankar, Shrirang
Date: 2011-11, 2011-11
Description: The simulation of electrical power system dynamic behavior is done using tran- sient stability simulators (TS) and electromagnetic transient...
Show moreThe simulation of electrical power system dynamic behavior is done using tran- sient stability simulators (TS) and electromagnetic transient simulators (EMT). A Transient Stability simulator, running at large time steps, is used for studying rela- tively slower dynamics e.g. electromechanical interactions among generators and can be used for simulating large-scale power systems. In contrast, an electromagnetic transient simulator models the same components in finer detail and uses a smaller time step for studying fast dynamics e.g. electromagnetic interactions among power electronics devices. Simulating large-scale power systems with an electromagnetic transient simulator is computationally inefficient due to the small time step size in- volved. A hybrid simulator attempts to interface the TS and EMT simulators which are running at different time steps. By modeling the bulk of the large-scale power system in a transient stability simulator and a small portion of the system in an electromagnetic transient simulator, the fast dynamics of the smaller area could be studied in detail, while providing a global picture of the slower dynamics for the rest of power system. In the existing hybrid simulation interaction protocols, the two simulators run independently, exchanging solutions at regular intervals. However, the exchanged data is accepted without any evaluation, so errors may be introduced. While such an explicit approach may be a good strategy for systems in steady state or having slow variations, it is not an optimal or robust strategy if the voltages and currents are varying rapidly, like in the case of a voltage collapse scenario. This research work proposes an implicitly coupled solution approach for the combined transient stability and electromagnetic transient simulation. To combine the two sets of equations with their different time steps, and ensure that the TS and EMT solutions are consistent, the equations for TS and coupled-in-time EMT equations are solved simultaneously. While computing a single time step of the TS equations, a simultaneous calculation of several time steps of the EMT equations is proposed. Along with the implicitly coupled solution approach, this research work also proposes to use a three phase representation of the TS network instead of using a positive-sequence balanced representation as done in the existing transient stability simulators. Furthermore a parallel implementation of the three phase transient stability simulator and the implicitly coupled electromechanical and electromagnetic transients simulator, using the high performance computing library PETSc, is presented. Re- sults of experimentation with different reordering strategies, linear solution schemes, and preconditioners are discussed for both sequential and parallel implementation.
Ph.D. in Electrical Engineering, December 2011
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Title: VIBRATIONAL STABILIZATION OF A CHEMICAL REACTOR - AN EXPERIMENTAL-STUDY
Creator: Cinar, A., Deng, J., Meerkov, S. M., Shu, X. S.
Date: 1987-04
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Description: Vibrational control is a method for modification of dynamic properties of linear and nonlinear systems by introduction of fast, zero-average...
Show moreVibrational control is a method for modification of dynamic properties of linear and nonlinear systems by introduction of fast, zero-average oscillations in a system's parameters. It has been previously shown that forced oscillations introduced in the reactant flow rates to a continuous stirred tank reactor (CSTR) cause a modification of theS- shaped steady-state curve. In the present note experimental evidence is given to show that this modification leads to the operation the CSTR at an asymptotically stable periodic regime located near an unstable steady-state of the reactor system having fixed flow rates. For a given average stabilized state, such a stabilizing mechanism results in a higher production rate or lower energy expenditure compared to a steady operation with shifted input conditions.
Endnote format citation
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Title: IMPROVED SPATIAL-TEMPORAL RECONSTRUCTION FOR CARDIAC AND RESPIRATORY GATED SPECT
Creator: Qi, Wenyuan
Date: 2014, 2014-12
Description: Myocardial perfusion single photon emission computed tomography (SPECT) is an important imaging technique for evaluating coronary artery...
Show moreMyocardial perfusion single photon emission computed tomography (SPECT) is an important imaging technique for evaluating coronary artery disease. It can provide information of both myocardial perfusion and ventricular function. However, SPECT images su er from both cardiac and respiratory motion blur. In order to reduce the motion degrading, cardiac and respiratory gated SPECT imaging is used. In gated SPECT imaging, due to the lowered counts, the gated images will be more noisy than the ungated ones. Spatiotemporal (4D) processing is often used to reduce the noise level in gated images. In this thesis, we aim to investigate spatial and temporal processing techniques for improving the quality in cardiac and respiratory gated SPECT imaging. First, we will investigate a piecewise spatial smoothing prior based on totalvariation (TV) in 4D cardiac SPECT image reconstruction. In previous studies, it was found that spatial smoothing could adversely a ect the accuracy of 4D reconstruction in cardiac gated SPECT when temporal smoothing was applied, even though it could suppress the noise level. Our goal is to explore whether a piecewise spatial smoothing prior will improve the image accuracy while reducing the noise. Toward this goal, we will compare TV based piecewise spatial smoothing with quadratic spatial smoothing with simulated imaging, in which we will evaluate the lesion detectability. Clinical data will also be used to compare the results as a preliminary test. Motion-compensated temporal smoothing is known to play a key role in 4D cardiac gated SPECT reconstruction. Next, we will investigate whether better motion estimation could further improve the accuracy of reconstructed images. We will consider two di erent motion estimation models and the known motion in simulated experiments. The motion estimation methods are the classic optical ow estimation (OFE) and a periodic motion estimation method. We will evaluate the reconstruction from di erent motion models using several numerical quanti cation metrics. Furthermore, we will demonstrate reconstruction with the two motion estimation models using clinical acquisitions. Respiratory motion is known to cause motion blur in SPECT image reconstruction, and respiratory gated SPECT imaging can be e ective to combat its e ect. We will develop reconstruction techniques in respiratory gated SPECT. We will consider two reconstruction schemes for respiratory gated SPECT. The rst scheme is a post motion compensated reconstruction, in which images at di erent respiratory phases are reconstructed seperately, and afterwards are averaged over all the respiratory gates by motion compensation. The second scheme is a model based motion compensated reconstruction approach, in which one reference gate is used to describe the acquisition data of all the respiratory gates. Due to irregular respiratory motion, the data acquisition in each respiratory gate is not uniformly distributed among the acquisition angles, which would lead to limited-angle artifacts. To correct such artifacts, we propose an angle compensation method in the reconstruction. In order to deal with both cardiac and respiratory motion, we will investigate a 4D reconstruction approach for dual cardiac-respiratory gated SPECT reconstruction. This approach can accommodate the acquired data simultaneously from di erent cardiac and respiratory gates. It can exploit the correlation in the signal component among both the cardiac and respiratory phases. Both simulated experiments and clinical reconstruction will be used for evaluating this reconstruction approach. Due to the radiation risk of myocardial perfusion imaging (MPI) scans, there is an urgent need to lower the radiation dose used in SPECT. However, lower radiation dose will lead to more noisy reconstruction, which is even more serious in gated SPECT. We would explore the potential of using 4D reconstruction for lowering the dose in dual cardiac-respiratory gated SPECT.
Ph.D. in Electrical and Computer Engineering, December 2014
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Title: Sloan Valve Company (sequence unknown), IPRO 306 - Deliverables: IPRO 306 IPRO Day Presentation F09
Creator: Delahanty, Sean, Jaouen, Julien, Thakkar, Hetul, Jones, Santiago Guerrero, Kim, Sung, Toor, Hammad, Jalan, Arjun, Soleja, Sikander, Zhang, Yayan
Date: 2009-12
Description: Sloan Valve manufactures and distributes commercial valves and plumbing fixtures globally. The IPRO team will work to improve the 'procure to...
Show moreSloan Valve manufactures and distributes commercial valves and plumbing fixtures globally. The IPRO team will work to improve the 'procure to pay' process and also assist in the development of a new warehouse management module.
Sponsorship: Sloan Valve Company
Deliverables for IPRO 306: Sloan Valve for the fall 2009 semester.
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Title: Smart Binoculars for Military & Civilian Use (sequence unknown), IPRO 350 - Project Plan: IPRO%20350%20Project%20Plan%20F09_redacted
Creator: Bubert, Casey, Fairall, Earl, Hopkins, Dong, Hutchins, Sarah, Kobayashi, Jonathan, Mccluskey, John, Pain, Muhammad, Patel, Purvag, Roa, Carlos, Spitler, Noah
Date: 2009-12
Description: GPS modules and tracking devices have influenced many advances in modern technology. The data GPS provides has replaced the map and compass,...
Show moreGPS modules and tracking devices have influenced many advances in modern technology. The data GPS provides has replaced the map and compass, and can be crucial in many situations. Its current platform for use however requires the user to utilize a handheld device and direct his/her frame of view to a screen. In many situations there is a need to have eyes on and full awareness of surroundings, something that simply can't be done while holding and viewing a handheld device. To solve this dilemma, team Smart Specs has integrated ideas of GPS, heads-up displays, and datalink technology to form a design that will give the user full hands free capabilities. This device, worn like glasses, allows the user to track objects and even designate objects to be tracked, which are all shown through heads-up display.
Project plan for IPRO 350: Smart Binoculars for Military & Civilian Use for the fall 2009 semester
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Title: Using Assessment Data to Improve Library Services : presented at ILA 2007 conference: 2007program
Creator: Stewart, Christopher, Uth, Charles
Date: 2007-10
Description: IIT Libraries conducted LibQUAL+ service quality assessment in 2004 and 2006. This presentation will outline strategies we undertook to...
Show moreIIT Libraries conducted LibQUAL+ service quality assessment in 2004 and 2006. This presentation will outline strategies we undertook to address issues identified in the 2004 assessment, and evaluate their success based on assessment results in 2006. We will also discuss the importance of measuring academic library effectiveness in higher education’s emerging outcomes-based culture.
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Title: A Mixed Use High Rise in Mumbai: Board_MixedUse_Irshad_Saleji
Creator: Saleji, Irshad
Date: 2011-05, 2011-05
Description: C-ward is the neighborhood (in Mumbai) that was designed and developed around 1940 and thereafter there has been no or very little improvement...
Show moreC-ward is the neighborhood (in Mumbai) that was designed and developed around 1940 and thereafter there has been no or very little improvement in infrastructure, which has led to narrow street, unsafe pedestrian and limited open space. C-ward in one of the most prime real-estate location considering it right next to financial district , close to major train station and close to Shoreline. ROMF (Remaking of Mumbai Federation) has taken the initiative to develop the C-ward and the project site part of ROMF development area. City centers have always been source of density because of scarcity of land. The sensible and effective use of such land would be to build vertical (high-rise) and also to have the possibility of expansion for the future development. A mixed use high rise development diversifies the use of space within a single building structure. Combination of living, entertainment, shopping and lodging in single urban structure, helps to utilize the full potential of an urban site.
Sponsorship: Durbrow, John
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Title: WIDESPAN: Masters Project
Creator: Ninan, Janice
Date: 2011-05, 2010-12
Description: Widespan design.Investigating the integration of windmills into longspan structure and investigating the axial forces of tension to span...
Show moreWidespan design.Investigating the integration of windmills into longspan structure and investigating the axial forces of tension to span grater spans using virtual depth concepts with slender lightweight design.
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Title: Large x physics: recent results and future plans, Proceedings of the XLIII International Symposium on Multiparticle Dynamics
Creator: Holt, Roy J.
Date: 2013-09-15, 2013-09-15
Publisher: IIT Press
Description: The valence region is exceedingly important in hadron physics since this region not only defines a hadron but also is an excellent...
Show moreThe valence region is exceedingly important in hadron physics since this region not only defines a hadron but also is an excellent discriminator of nucleon structure models. Present uncertainties in light quark distribution functions at high x could also impact high energy physics. Here we will describe a new generation of experiments at Jefferson Lab that is aimed at the high x region of the nucleon. It is noted that the proposed Electron Ion Collider could explore the high x regime.
Sponsorship: IIT College of Science, High Energy Physics Division of Argonne National Laboratory
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Title: Sloan Valve Company (sequence unknown), IPRO 306 - Deliverables: IPRO 306 Abstract F09
Creator: Delahanty, Sean, Jaouen, Julien, Thakkar, Hetul, Jones, Santiago Guerrero, Kim, Sung, Toor, Hammad, Jalan, Arjun, Soleja, Sikander, Zhang, Yayan
Date: 2009-12
Description: Sloan Valve manufactures and distributes commercial valves and plumbing fixtures globally. The IPRO team will work to improve the 'procure to...
Show moreSloan Valve manufactures and distributes commercial valves and plumbing fixtures globally. The IPRO team will work to improve the 'procure to pay' process and also assist in the development of a new warehouse management module.
Sponsorship: Sloan Valve Company
Deliverables for IPRO 306: Sloan Valve for the fall 2009 semester.
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Title: Oil Rig Eco Hotel
Creator: Marcan, Stephanie
Date: 2011, 2011-05
Description: By refashioning the design and programmatic use of an offshore oil rig into a luxury hotel for ecotourists, a new age of responsible travel...
Show moreBy refashioning the design and programmatic use of an offshore oil rig into a luxury hotel for ecotourists, a new age of responsible travel may emerge. By twisting the symbol of oil dependency into an ecologically preserved, environmentally accountable and revenue-producing prototype, the ideals of reuse, energy and environment can be viewed through a new lens. This design creates interesting and innovative living spaces and environments aided by sustainable integrations to create a “living machine” that establishes connections between all building systems as well as inhabitant inputs and outputs resulting in an energy independent habitat.
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Title: Overlap Overlay: Overlap Overlay Board
Creator: Wankel, Jordan
Date: 5/4/2011, 2011-05
Description: The purpose of this overlay is to provide the proper mechanics which allows a new type of home ownership while addressing current urban...
Show moreThe purpose of this overlay is to provide the proper mechanics which allows a new type of home ownership while addressing current urban vacancy. The overlay attempts to be democratic. It establishes basic rules based on the existing block requirements, while also providing flexibility within. Residents voluntarily participate in the system, benefiting from the whole. Social interactions, block orientated activities, and housing arrangements expand and contract over time.
Sponsorship: Goodman, David
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Title: Finding Uses for Alternative Fuels in Intermodal Transportation Hubs (sequence unknown), IPRO 307 - Deliverables: IPRO 307 IPRO Day Presentation F09
Creator: Balakirev, Konstantin, Beau‐luby, Ryan, Bouikidis, John, Cargill, Matthew, Dziuba, David, Kehoe, Matthew, Slonski, Bryan, Tesfaye, Melat, Wiese, Matthew, Wiseman, Christopher, Zook, Joel
Date: 2009-12
Description: Chicago, being the third largest freight hub in the world, needs an efficient movement of goods for the increasing freight shipments.
Sponsorsh...
Show moreChicago, being the third largest freight hub in the world, needs an efficient movement of goods for the increasing freight shipments.
Sponsorship: Mi-Jack
Deliverables for IPRO 307: Finding Uses for Alternative Fuels in Intermodal Transportation Hubs for the fall 2009 semester.
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