Institutional Repository

: Flow characteristics of a rectangular multielement supersonic mixer-ejector; This study describes a technique that combines the benefits of focusing schlieren and phase conditioning. Focusing schlieren blurs and drops contrast of non-critical features whereas phase conditioning emphasizes periodic flow features, and their combination produces unique results. The supersonic jets that we studied produced an intense tone referred to as screech. The measured screech tone signal was used as input to the phase conditioning circuit that adjusted the strobing light source to the vertical synchronization pulse of a CCD camera. The sharp video images obtained by this technique could either be frozen or continuously swept through one period of screech to acquire a slow motion video record of the jet unsteadiness. Two cases were visualized in this study: first, an underexpanded jet from a convergent rectangular nozzle at various fully expanded Mach numbers. Second, a supersonic jet emerging from a convergent-divergent rectangular nozzle at a design Mach number of 1.4, artificially excited by impingement tones. The results of this study illustrate the usefulness of this system in visualizing oscillatory flows.

: Parton distributions and event generators; We present the implementation within the Pythia8 event generator of a set of parton distributions based on NNPDF methodology. We construct a set of leading-order parton distributions with QED corrections, NNPDF2.3QED LO set, based on the same data as the previous NNPDF2.3 NLO and NNLO PDF sets. We compare this PDF set to its higher-order counterparts, we discuss its implementation as an internal set in Pythia8, and we use it to study some of the phenomenological implications of photon-initiated contributions for dilepton production at hadron colliders., Sponsorship: IIT College of Science, High Energy Physics Division of Argonne National Laboratory

: Research Web (Semester Unknown) IPRO 321; IPRO 321 has the task of facilitating the performance of undergraduate research in the Illinois Institute of Technology (IIT) by creating a website called ResearchWeb that integrates and connects undergraduates with colleagues, faculty members and resources., Deliverables

: Hair Cutting Apparatus with Rotary Hair Cutters Having Overlapping Paths of Movement; Sponsorship: IIT Research Institute, United States Patent

: Recording Apparatus; Sponsorship: Armour Research Foundation of Illinois Institute of Technology, United States Patent

: Method and Apparatus for Rendering Medical Materials Safe; Infectious medical materials are rendered harmless by heating heterogeneous medical materials having wet and dry portions with a radio-frequency electric field. The medical materials may be comminuted prior to heating. The medical materials are exposed to the radio-frequency electric field in order to heat the medical materials. The medical materials may include sorted medical or veterinary waste which after heat treatment may be recycled., Sponsorship: IIT Research Institute, United States Patent

: Rugate Optical Filter Systems; A heterodyning interferometric monitoring apparatus for simultaneously measuring in situ and in real time the optical and physical thicknesses of a sample during a deposition process. A linearly polarized monochromatic light beam is passed through a frequency shifter which produces therefrom a dichromatic light beam having two orthogonally linearly polarized components at respective different frequencies. The dichromatic beam is applied to a modified Twyman-Greene interferometer, from which two heterodyne light beams emerge. The first of the two light beams is a combination of light at the first frequency reflected from the sample and light at the second frequency reflected from a reference plate, from which the physical thickness of the sample can be determined using a heterodyne signal detector. The second light beam is a combination of light at the first frequency passed through the sample and light at the second frequency passed through the reference plate, from which the optical thickness of the sample can be determined using another heterodyne signal detector., Sponsorship: IIT Research Institute, United States Patent

: Continiuous improvements of the Global Supply Chain for a Plumbing Systems Manufacturer (Semester Unknown) IPRO 306; The IPRO 306 team for the Spring '09 semester is sponsored by Sloan Valve Company, a long-standing family owned company, to assist in supply chain operations. Sloan Valve wishes to both streamline it's processes and increase employee training and understanding of quality control systems. To this end, the IPRO team will assist them on these two projects., Sponsorship: SLOAN Valve Company, Deliverables

: Bulk Demagnetizer System and Method; Sponsorship: IIT Research Institute, United States Patent

: Fast Digital Comparison Circuit for Fuzzy Logic Operations; A fast digital logic circuit for comparing two binary numbers and outputting the greater of the two is disclosed., Sponsorship: Illinois Institute of Technology, United States Patent

: Environmental Contamination Detection and Analyzing System and Method; A method and system for detecting environmental contamination, such as subsurface contamination, include a test probe located in a medium. The probe is adapted to collect a fluid sample from the medium for determining the presence of a contaminant having a vapor pressure. Pneumatic communication lines extend from a test point and connect to the probe. A detector/analyzer is connected to the distal end of the communication lines of the probe. While connected, a fluid sample is taken into the probe and transported in the pneumatic communication lines by a carrier gas to the detector/analyzer for analysis of the contaminant. The general principle is applicable for contaminant detection and/or analysis in soil masses, liquid masses and gases., Sponsorship: IIT Research Institute, United States Patent

: Intelligent process monitoring by interfacing knowledge-based systems and multivariate statistical monitoring; An intelligent process monitoring and fault diagnosis environment has been developed by interfacing multivariate statistical process monitoring (MSPM) techniques and knowledge-based systems (KBS) for monitoring multivariable process operation. The real-time KBS developed in G2 is used with multivariate SPM methods based on canonical variate stare space (CVSS) process models. Fault detection is based on T-2 charts of state variables. Contribution plots in G2 are used for determining the process variables that have contributed to the out-of-control signal indicated by large T-2 values, and G2 Diagnostic Assistant (GDA) is used to diagnose the source causes of abnormal process behavior. The MSPM modules developed in Matlab are linked with G2. This intelligent monitoring and diagnosis system can be used to monitor multivariable processes with autocorrelated, cross-correlated, and collinear data. The structure of the integrated system is described and its performance is illustrated by simulation studies., Endnote format citation

: Prototyping and User Testing of an On-Line Information Tool for Public Participation in Large-Scale Infrastructure Projects, Summer 2011, IPRO 320: Ethics Statement; Leveraging the existing technologies currently available in the marketplace enables the IPRO to create a team-networking solution that reaches more stakeholders and provides a richer, more enhanced venue for project collaboration. The solution devised by the IPRO must be easily accessible and interactive allowing for data capture, storage, retrieval and viewing amongst an array of end-user devices. To provide a successful solution, this IPRO will storyboard the concept over the summer, prototype the concept during the fall and execute usability studies the prototype during the spring semesters., Sponsorship: Parsons Brinkerhoff, Prototyping and User Testing of an On-Line Information Tool for Public Participation in Large-Scale Infrastructure Projects, Summer 2011, IPRO 320

: Heat Treat (semester?), IPRO 304; IPRO 304 is the continuation of IPRO 330 (Spring 2006) and was created to develop an Information Tool for the Metals Industry with a focus on Heat Treatment, in this case. The development of an Information Tool for Heat Treatment requires across-disciplinary knowledge of the fundamentals of heat treatment process, as well as an in-depth understanding of and the practical skills required for the development of computer software, Deliverables for IPRO 304: Heat Treat for the Fall 2007 semester.

: Technical and Market Integration of Hydroelectric Energy (semester?), IPRO 343; The objectives are to design a small hydroelectric power plant on an existing low head dam on Fox River and investigate and evaluate the technical and market integration issues of the new hydro-electrical energy into the current power grid., Sponsorship: Alexander Tseng, Deliverables for IPRO 343: Technical and Market Integration of Hydroelectric Energy for the Fall 2006 semester

: Zinc-Fuel Cell Powered Car (sequence unknown), IPRO 313 - Deliverables; The team’s objective is to design a refuelable electric vehicle based on a zinc‐air battery, that is comparable to a current consumer vehicle in performance, cost, and safety; and to also develop a system for zinc fuel delivery that requires a minimum of changes to the existing fuel delivery infrastructure., Deliverables for IPRO 313: Zinc-Fuel Cell Powered Car for the fall 2009 semester

: Statistical process monitoring and disturbance diagnosis in multivariable continuous processes; Detecting out-of-control status and diagnosing disturbances leading to the abnormal process operation early are crucial in minimizing product quality variations Multivariate statistical techniques are used to develop detection methodology for abnormal process behavior and diagnosis of disturbances causing poor process performance. Principal components and discriminant analysis ave applied to quantitatively describe and interpret step, ramp and random-variation disturbances. All disturbances require high-dimensional models for accurate description and cannot be discriminated by biplots. Diagnosis of simultaneous multiple faults is addressed by building quantitative measures of overlap between models of single faults and their combinations. These measures are used to identify the existence of secondary disturbances and distinguish their components. The methodology is illustrated by monitoring the Tennessee Eastman plant simulation benchmark problem subjected to different disturbances. Most of the disturbances can be diagnosed correctly, the success rate being higher for step and vamp disturbances than random-variation disturbances., Endnote format citation

: Battery System Thermal Management; Electrochemical cell battery systems and associated methods of operation are provided based on the incorporation of a thermal management matrix including a supply of phase change material disposed at least in part in a heat conductive lattice member to effectively dissipate heat produced or generated by or in the battery system such as to minimize or prevent thermal runaway propagation in the electrochemical cells of the system., Sponsorship: Illinois Institute of Technology, United States Patent

: Education and Technical Support of Prosthetics and Orthotics Education in Latin America (Semester Unknown) IPRO 309; Primary Objective The primary objective of this IPRO is to support the development of the first International Society of Prosthetics and Orthotics (ISPO) accredited Category 3 program in Latin America. Secondary Objectives The secondary objectives are necessary for accomplishing the primary objective. To ensure that the program will be accredited, many guidelines must be followed; these guidelines have set the secondary objectives as follows: • Develop several educational modules concerning common diseases and their orthotic treatments • Develop several low-cost demonstrations and hand-outs to compliment the educational modules • Carefully follow ISPO requirements to ensure accreditation • Translate all material to Spanish for use in Latin America • Develop a three day short course to be presented at a Prosthetics and Orthotics conference at Bogotá, Colombia in May 2007 • Work with educators in Colombia to develop a program similar to IPRO 309, Deliverables for IPRO 309: Education and Technical Support of Prosthetics and Orthotics Education in Latin America for the Spring 2007 semester

: Reversal in Spreading of a Tabbed Circular Jet Under Controlled Excitation; Detailed flow field measurements have been carried out for a turbulent circular jet perturbed by tabs and artificial excitation. Two ''delta tabs'' were placed at the nozzle exit at diametrically opposite locations. The excitation condition involved subharmonic resonance that manifested in a periodic vortex pairing in the near flow field. While the excitation and the tabs independently increased jet spreading, a combination of the two diminished the effect. The jet spreading was most pronounced with the tabs but was reduced when excitation was applied to the tabbed jet. The tabs generated streamwise vortex pairs that caused a lateral spreading of the jet in a direction perpendicular to the plane containing the tabs. The excitation, on the other hand, organized the azimuthal vorticity into coherent ring structures whose evolution and pairing also increased entrainment by the jet. In the tabbed case, the excitation produced coherent azimuthal structures that were distorted and asymmetric in shape. The self-induction of these structures produced an effect that opposed the tendency for the lateral spreading of the streamwise vortex pairs. The passage of the distorted vortices, and their pairing, also had a cancellation effect on the time-averaged streamwise vorticity field. These led to the reduction in jet spreading. [S1070-6631(97)03012-2].

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