Search results

Title: LINEAR AND NONLINEAR BEHAVIOR OF TRANSIENT LIFT RESPONSE TO PULSE-ACTUATION
Creator: An, Xuanhong
Date: 2014, 2014-07
Description: The transient lift coe cient for a NACA0009 airfoil with pulsed jet actuation type of active ow control at stall conditions is investigated....
Show moreThe transient lift coe cient for a NACA0009 airfoil with pulsed jet actuation type of active ow control at stall conditions is investigated. The experimental mea- surements show the lift coe cient dependence to a single-pulse with di erent pulse widths and amplitudes. Based on the single-pulse with optimal parameters, multi- pulse and continuous pulse actuation cases are studied, which indicate that the pulse interval is the major factor of the active ow control system capability. Linear and nonlinear model are used to predict the lift coe cient variation for di erent input signals to the actuators. A combined nonlinear model is introduced to predict lift coe cient change due to arbitrary unsteady pitching motion with active ow control.
M.S. in Mechanical and Aerospace Engineering, July 2014
Show less

Title: BIG DATA SYSTEM INFRASTRUCTURE AT EXTREME SCALES
Creator: Zhao, Dongfang
Date: 2015, 2015-07
Description: Rapid advances in digital sensors, networks, storage, and computation along with their availability at low cost is leading to the creation of...
Show moreRapid advances in digital sensors, networks, storage, and computation along with their availability at low cost is leading to the creation of huge collections of data { dubbed as Big Data. This data has the potential for enabling new insights that can change the way business, science, and governments deliver services to their consumers and can impact society as a whole. This has led to the emergence of the Big Data Computing paradigm focusing on sensing, collection, storage, management and analysis of data from variety of sources to enable new value and insights. To realize the full potential of Big Data Computing, we need to address several challenges and develop suitable conceptual and technological solutions for dealing them. Today's and tomorrow's extreme-scale computing systems, such as the world's fastest supercomputers, are generating orders of magnitude more data by a variety of scienti c computing applications from all disciplines. This dissertation addresses several big data challenges at extreme scales. First, we quantitatively studied through simulations the predicted performance of existing systems at future scales (for example, exascale 1018 ops). Simulation results suggested that current systems would likely fail to deliver the needed performance at exascale. Then, we proposed a new system architecture and implemented a prototype that was evaluated on tens of thousands nodes on par with the scale of today's largest supercomputers. Micro benchmarks and real-world applications demonstrated the e ectiveness of the proposed architecture: the prototype achieved up to two orders of magnitude higher data movement rate than existing approaches. Moreover, the system prototype was incorporated with features that were not well supported in conventional systems, such as distributed metadata management, distributed caching, lightweight provenance, transparent compression, acceleration through GPU encoding, and parallel serialization. Towards exploring the proposed architecture at millions of node scales, simulations were conducted and evaluated with a variety of workloads, showing near linear scalability and orders of magnitude better performance than today's state-of-the-art storage systems.
Ph.D. in Computer Science, July 2015
Show less

Title: Method and Apparatus for Detecting and Sizing Microscopic Particles
Creator: Karuhn, Richard F., Davies, Reg, Clinch, John Michael
Date: 2009-04-30, 1973-06-12
Description: Improved accuracy of size measurement and size distribution of particles in a fluid have been obtained in an electrical zone sensing apparatus...
Show moreImproved accuracy of size measurement and size distribution of particles in a fluid have been obtained in an electrical zone sensing apparatus by a flow control director means which directs the fluid in a more streamlined, less turbulent flow through an aperture at which the particles are electrically sensed. Also, the particles were directed and guided to flow substantially parallel to longitudinal axis for the aperture. The preferred flow control detector means comprises a contoured orifice having a smooth tapered inlet wall blended at an intersection with a central cylindrical wall defining a tubular shaped aperture.
Sponsorship: IIT Research Institute
United States Patent
Show less

Title: Some commutation phenomena of direct current machinery
Creator: Clark, F. C.
Date: 2009, 1905
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/somecommutationp00clar
Thesis (B.S.)--Armour Institute of Technology

Title: DESIGN OF RESILIENT CONTROLLABLE CHEMICAL PROCESSES - AN AUTOTHERMAL REACTOR CASE-STUDY
Creator: Chylla, R. W., Cinar, A.
Date: 1990-07
Publisher: AMER CHEMICAL SOC
Description: A technique for the analysis of state-space linear systems is applied to the problem of selection of resilient chemical process designs....
Show moreA technique for the analysis of state-space linear systems is applied to the problem of selection of resilient chemical process designs. Structural Dominance Analysis affords the evaluation of many process design and control configurations and assessment of the effects of potential manipulated variables and disturbances. After a brief presentation of the analysis method, a complex multibed tubular autothermal reactor system is examined. Resilient process configurations, ease of control, and effects of various inputs on reactor state variables and outputs are considered, and effective control configurations are selected.
Endnote format citation
Show less

Title: OPTIMIZATION OF POWER TRENCH MOSFETS FOR HIGH EFFICIENCY SYNCHRONOUS BUCK CONVERTERS
Creator: Wang, Wendi
Date: 2016, 2016-05
Description: Synchronous buck converter might be one of the most widely used and fabricated circuitry in the world for its favorable trade-off on many...
Show moreSynchronous buck converter might be one of the most widely used and fabricated circuitry in the world for its favorable trade-off on many subjects. However, the ever higher operation frequency has lead to increasing power loss in power switches and imposed new challenge to MOSFET engineering. One promising alternative for the traditionally used trench MOSFET is the shield gate MOSFET. Shield gate MOSFET has superior conduction performance as well as fast switching transient response due to its Reduced Surface Electric Field (RESURF) effect. In recent years, characterization of power MOSFET has developed along with MOSFET technology itself. New Figure of Merits (FOMs) have come into people's sight as they serve as better standards to fully describe MOSFET's overall performance. Being the same case for many other device structures, this new characterizing system also puts advanced requirements to shield gate MOSFET. And one of the most crucial problems is the rather large output capacitance this structure is having. To improve the property of shield gate MOSFET and meet the requirements of new standards, several ways of structure refinement have been proposed in this work. Both shield gate MOSFET and conventional MOSFET rated at 40V have been designed and simulated in the second chapter. The outcome shows that shield gate MOSFET has superior performance in almost every respect except for its large output charge. Then new structure for COSS reduction has been introduced in the following section, with decrement of about 50% in QQS-1 being achieved. Finally, another issue that has been tackled with is the shoot through of synchronous buck converter. Equivalent circuit model for shoot through analysis is built in this section to study the effect of each parasitic element. And a p type pillar added structure has been verified as an effective way to suppress shoot through gate bounce.
M.S. in Electrical Engineering, May 2016
Show less

Title: Reuse of 1230 N. Burling | Cabrini Green Youth Center
Creator: Ciorba, Dan
Date: 5/4/2011, 2011-05
Description: Demolishing a concrete building that is structurally sound is ecologically wasteful and irresponsible. With the many advantages concrete...
Show moreDemolishing a concrete building that is structurally sound is ecologically wasteful and irresponsible. With the many advantages concrete offers and rising energy costs, there needs to be a way that existing and structurally sound, concrete buildings can be reused. This explored method for concrete reuse depends heavily on technological advances in the foreseeable future that allow for the process to be accomplished efficiently and for the material to be preserved for a longer period of time.
Show less

Title: BIO-COMPOSITE NANOMATERIALS; CHARACTERIZATION, MANIPULATION AND APPLICATION
Creator: Kim, Taeyoung
Date: 2013, 2013-05
Description: Biomaterials are any matter or material which interacts with biological system which were present on natural or synthetic nonviable materials....
Show moreBiomaterials are any matter or material which interacts with biological system which were present on natural or synthetic nonviable materials. An ideal biomaterial must physically and chemically compatible for biological applications to avoid toxicity and immune reaction. Collagen is a widely abundant, robust biopolymer that is found in the extracellular matrix (ECM) of many tissues. In terms of its structure and organization, collagen is a bio-nano material. The use of collagen in stem cell differentiation is particularly enticing since it is now evident that the extracellular matrix (ECM) proteins can regulate the cell’s fate and growth by their molecular and physical properties. In this thesis research, we have characterized the physical and structural properties of collagen and its composite materials. We found collagen interacts with NaCl and other nano-materials, such as carbon nanotube (CNT) and TiO2 nanotube, resulting in the modification of collagen structure and increase of its stiffness. In particular, CNT has changed collagen structure at both the molecular level and the higher organizational level. The effects of the matrices on cell growth and development were studied. It was found that collagen/CNT matrix specify and accelerate the stem cell differentiation toward neural cells. Since neurons form the foundation of biological circuit, manipulation of neurons in growth has the potential to form desired biological circuit. We also examined collagen in vaginal wall connective tissues, and found that alteration of collagen properties in clinical tissues is correlated to the onset of pelvic organ prolapse.
PH.D in Chemistry, May 2013
Show less

Title: Conversion of Municipal Waste to Useful Oils
Creator: Stapp, Paul R.
Date: 2009-05-08, 1992-10-27
Description: The present invention is directed to a method for converting municipal waste containing plastics to a high quality synthetic crude oil which...
Show moreThe present invention is directed to a method for converting municipal waste containing plastics to a high quality synthetic crude oil which can be separated by fractionation into gasoline, diesel fuel and gas oils suitable as a feedstock to a catalytic cracker. The presence of cellulosic and proteinaceous waste materials in the municipal waste does not inhibit the process of the invention for converting the municipal waste into a synthetic crude oil. The process generally includes the steps of heating the municipal waste in a reaction gas, of a mixture of hydrogen sulfide and hydrogen or hydrogen at moderate temperatures and pressures.
Sponsorship: IIT Research Institute
United States Patent
Show less

Title: Method for the Preparation of a Titanium Solution
Creator: Cammack, Rose Marie, Schossberger, Frederic V., Ticulka, Frank A.
Date: 1962-05-01
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: FoodLab - A revitalization strategy for the Pari yard, Sao Paulo - Brazil
Creator: Lussich Garese, Maria Fernanda
Date: 5/4/2011, 2011-05
Description: This project aims to develop a new design strategy to redevelop the Pari yard and reclaim the adjacent Tamanduatei river by turning it into an...
Show moreThis project aims to develop a new design strategy to redevelop the Pari yard and reclaim the adjacent Tamanduatei river by turning it into an operative landscape. A holistic system to harverst, clean and reuse the abundant summer rainfall was created in order to enable a highly sustainable urban redevelopment.
Show less

Title: Feedback control of a continuous-flow stirred tank reactor with competing autocatalators
Creator: Chaivorapoj, W., Birol, I., Cinar, A., Teymour, F.
Date: 2003-08-06
Publisher: AMER CHEMICAL SOC
Description: Two types of nonlinear feedback control schemes are introduced and analyzed for their capability of recovering the original state of an...
Show moreTwo types of nonlinear feedback control schemes are introduced and analyzed for their capability of recovering the original state of an isothermal continuous-flow stirred tank reactor with one robust cubic autocatalytic species, perturbed by a temporary disturbance of an invading cubic autocatalytic species in the inflow. The control objectives are to eliminate the invading species from the system and to restore the original state of the host species. The extent of applicability of the control design to different nonrobust invading species is studied, when the controller is tuned for a specific invader. Moreover, a time-delay feature is suggested in one of the control schemes developed to achieve the control objectives in systems with poor detection of invading species.
Endnote format citation for DOI:10.1021/ie020427+
Show less

Title: Some features of a modern overhead distributing system
Creator: Redman, A. R.
Date: 2009, 1916
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/somefeaturesofmo00redm
Thesis (B.S.)--Armour Institute of Technology

Title: Washington Park Center for Improvisational Music: Kellen White_FINAL 34x44 BOARD_02
Creator: White, Kellen
Date: 2010-07-30

Title: Thin Film Device
Creator: Dahn, Carl James, Van Den Heuvel, Anthony P.
Date: 2009-04-29, 1972-06-13
Description: A thin film device which may be used as a fuze or fuse. The device comprises a pair of conductive layers separated and joined to opposite...
Show moreA thin film device which may be used as a fuze or fuse. The device comprises a pair of conductive layers separated and joined to opposite faces of a thin insulating layer to thereby form a three layer sandwich. One of the conductive layers and the insulating layer have a plurality of pin holes therein, the sides of each being coated by a bridge element of low density, low specific heat metal so as to short circuit or bridge the conductive layers. Terminal means are connected respectively to the conductive layers to supply electrical energy which passes from one conductive layer to the other conductive layer via the metal bridge elements. When the electrical energy exceeds a predetermined amount, the bridge elements vaporize. The vaporization of the bridge elements can be employed to initiate detonation of an explosive train thereby serving as a fuze. Alternatively, the device may be employed as an electrical fuse wherein the vaporization of the bridge elements caused by electrical energy interrupts the flow of electrical energy in an electrical circuit.
Sponsorship: IIT Research Institute
United States Patent
Show less

Title: the evolution of the south fork turning basin: Grilli_Preliminary_Research
Creator: Grilli, Graham
Date: 5/4/2011, 2011-05
Description: a historical analysis of the South Fork Turning basin from 1833-2040 including proposals for future timeline. wetland remediation coupled with...
Show morea historical analysis of the South Fork Turning basin from 1833-2040 including proposals for future timeline. wetland remediation coupled with modular housing and adaptive reuse solutions. prototype for other potential developments along river's edge leading to healthier Great Lakes basin.
Show less

Title: Halogenated Compounds Sensor
Creator: Stetter, Joseph R., Cao, Zhuang
Date: 2009-05-11, 1993-07-13
Description: A highly sensitive and selective sensor for the detection of halogenated compounds comprises a bead of sodium lanthanum fluoride silicate,...
Show moreA highly sensitive and selective sensor for the detection of halogenated compounds comprises a bead of sodium lanthanum fluoride silicate, having the molecular formula NaLa.sub.4 (SiO.sub.4).sub.3 F, in which are embedded two noble metal electrodes, preferably a straight platinum wire near the center and a helical platinum wire near the periphery of the bead. A current passing through the helical wire maintains the sensor temperature at about 550.degree. C. by resistive heating. The electrical resistance between the two wires is deduced from measurements of the current passing through a fixed external resistor when a substantially constant voltage, preferably about 4 volts, is applied between the wires. A decrease in the measured resistance is an indication of the presence of a halogenated compound in the sample of air to which the bead is exposed. The sensor is preferably controlled by a microprocessor or microcomputer that also performs data processing. This system not only detects a halogenated compound of interest, but also measures its concentration.
Sponsorship: Illinois Institute of Technology
United States Patent
Show less

Title: Trandsucer Machine with Slideable Reception of an Automatic Electronic Circuit Connection with a Hand Held Type Self-Contained Tape Recorder
Creator: Camras, Marvin
Date: 2009-05-04, 1974-04-16
Description: A magnetic transducer system for selective audio or video operation with movable guides for shifting the tape path between audio, video and...
Show moreA magnetic transducer system for selective audio or video operation with movable guides for shifting the tape path between audio, video and rewind positions, or with fixed guides defining both an audio and video tape path, the audio tape path being clear of the video head, for example. A video transducer with a receptacle removably receiving and providing external energization for a battery powered audio transducer unit.
Sponsorship: IIT Research Institute
United States Patent
Show less

Title: Automatic Insulin Pumps Using Recursive Multivariable Models and Adaptive Control Algorithms
Creator: Cinar, Ali, Oruklu, Meriyan
Date: 2014-04-09, 2014-04-08
Description: A method and device for monitoring or treating patient glucose levels. The device includes a glucose sensor for measuring a glucose level of a...
Show moreA method and device for monitoring or treating patient glucose levels. The device includes a glucose sensor for measuring a glucose level of a patient, a physiological status monitoring system for measuring at least one physical or metabolic variable of the patient, and an automatic controller in communication with the glucose sensor and the physiological status monitoring system. The controller includes a prediction module for automatically predicting a future glucose level using data measured by the glucose sensor and the physiological sensor.
Sponsorship: Illinois Institute of Technology
United States Patent
Show less

Title: Reduction in Carbon Oxides in Oxidative Pyrolosis of Halogenated Methanes
Creator: Senkan, Selim M.
Date: 2009-05-11, 1991-01-08
Description: Reduction of carbon oxides products in oxidative pyrolysis of halogenated methanes in gas phase halogen-catalyzed oxidative-pyrolytic, non...
Show moreReduction of carbon oxides products in oxidative pyrolysis of halogenated methanes in gas phase halogen-catalyzed oxidative-pyrolytic, non-flame, conversion of methane to higher molecular weight hydrocarbons is carried out in the presence of oxygen-containing gas which is primarily introduced in a latter portion of the process sequence reducing the oxygen requirement for effective suppression of formation of carbonaceous deposits thereby reducing carbon oxides product. Conversion of halogenated methanes to high yields of ethylene by conduct of the reaction in the presence of methane further reduces oxygen requirements and results in insignificant solid carbonaceous deposit formation.
Sponsorship: Illinois institute of Technology
United States Patent
Show less

repository.iit

Search the repository

Pages

Pages

Enabled Filters

Refine Results

Type

Date

Academic status of creator

Department

Subject

Creator

Part of

Rights