Search results

Title: Self-Correcting Record-Play System and Method
Creator: Camras, Marvin
Date: 2009-05-08, 1984-06-19
Description: A transducer head configuration is utilized which is operable by means of recording pulses of extremely short duration and of low duty cycle....
Show moreA transducer head configuration is utilized which is operable by means of recording pulses of extremely short duration and of low duty cycle. Provision is made for reading the recorded magnetization between recording pulses and correcting same pulse prior to substantial movement of the record medium relative to the transducing gap.
Sponsorship: IIT Research Institute
United States Patent
Show less

Title: Method for Producing Biodegradable Products
Creator: Shutov, Fyodor, Ivanov, George, Arastoopour, Hamid
Date: 2009-05-11, 1997-11-18
Description: A method of making a molded biodegradable food receptacle product including the steps of grinding up non-toxic agricultural waste plant...
Show moreA method of making a molded biodegradable food receptacle product including the steps of grinding up non-toxic agricultural waste plant material like soy, rice, oat and wheat hulls into particles having a range of sizes so that, if compressed in a mold, the smaller particles substantially fill the spaces between the much larger ones. Where necessary, there is added to the particles a natural and biodegradable binder-forming material, like an edible vegetable oil which will bind like a food receptacle the particles together to form a leak-proof receptacle, when inserted into a mold and compressed by the mold walls at elevated temperatures will produce compact well bound together particles. Without any chemical or physical pretreatment of the ground particles and particle-binder feed mix, the unpretreated mix, with or without small amounts of coloring, aromatic or foaming agents, is fed into a pressure-applying mold. The initial pressure and temperature preferably squeezes inherent binding-forming oils from the preferably seed hulls which freely flow through the mix. The high pressure is then partially reduced and the mold temperature is elevated to maximize the binding action of the binder materials as they solidify.
Sponsorship: Illinois Institute of Technology
United States Patent
Show less

Title: Method of Making Fine-Grain Chromium
Creator: Metcalfe, Arthur G., Spachner, Sheldon A.
Date: 1962-06-05
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: Transducer Head System
Creator: Camras, Marvin
Date: 1962-06-19
Description: Sponsorship: Armour Research Foundation of Illinois Institute of Technology
United States Patent

Title: RECONFIGURABLE ANALOG FRONT-END SYSTEM FOR ULTRASONIC IMAGING APPLICATIONS
Creator: Vasudevan, Vidya
Date: 2014, 2014-12
Description: Ultrasonic systems, applied in the field of Medical Imaging and Non-Destructive Testing, have evolved from the trolley-based units to more...
Show moreUltrasonic systems, applied in the field of Medical Imaging and Non-Destructive Testing, have evolved from the trolley-based units to more portable, hand-held devices. These systems are built to suit a specific application or aim at specific target material. In order to make these systems portable and adaptable to the testing environment, a flexible and programmable hardware is built. A fully configurable Analog Front-End (AFE) is presented, which possesses the capability for dynamic re-configuration by using ARM processing core for real-time control, data acquisition and signal analysis in a Linux environment. This system supports up to 8 ultrasonic sensors. The flexibility built into the AFE allows for various beamforming and signal conditioning requirements. This reconfigurable system enables ultrasonic researchers to efficiently prototype different experiments and to incorporate high performance ultrasonic signal and image processing algorithms. This system provides real-time signal processing for nondestructive evaluation (NDE) and imaging applications using ultrasonic sensors ranging from 60 KHz to 15 MHz operating frequencies. A dynamically reconfigurable sensor interface is presented for ultrasonic pulse-echo measurements targeting flaw detection and parametric echo classification applications. For real-time implementation, a SoC-based system is developed on an ARM platform. For a working system, a BCM2835 SoC on a Raspberry Pi hardware system is explored with a further upgrade to Xilinx Zynq 7020 SoC in order to achieve a higher throughput.
M.S. in Electrical Engineering, December 2014
Show less

Title: HYBRID TO SOCIAL CONDENSER: COMPETING APPROACHES TO MIXED-USE DEVELOPMENT
Creator: Zagow, Maged
Date: 2016, 2016-12
Description: In the last two decades, mixed use has taken center stage in urban planning development in the United States. The research frequently cites...
Show moreIn the last two decades, mixed use has taken center stage in urban planning development in the United States. The research frequently cites this development as a model that can address a variety of socioeconomic problems. Also, it has enjoyed a recent surge in popularity in redeveloping cities by providing more affordable housing opportunities, ensuring safety, reducing auto-dependency, and for providing a sense of place and community. However, its affordability, physical design, and outcomes are highly variable. This study is particularly interested in whether and how mixed use affects the socioeconomics configuration of the built environment. This study uses multilevel data from the county level to the zip code level that represents all US neighborhoods. I use different implementation methods of mixed-use development and different cultural and historical backgrounds to examine the data. The study adopts six mixed-use models that present different methodological interactions between socioeconomic spatial metrics and urban forms. These models represent the realistic constraints of urban geometry and of the socioeconomic structure that comprises the charateristics of race, income, accessibility, safety, adjacency, accessibility, environment, and density. This study finds that the built environment produces a rich landscape of information that appears to guide the opportunities for facilities. The analysis shows that mixed-use development may have certain effects on the number of facilities, housing, income, diversity, crime rate, employment, health, and environment. The analysis of this research works in two dimensions. First, urban models (Hybrid and Social Condenser in general and under two categories Metropolis and Neighborhood Community). The second dimension is the urban characteristics (zoning programming, land use mix, streets fabric), socioeconomics variables (Population density, occupied housing, median age, diversity of race, income, and employment rates), and location variation (states, and cities). The results confirm that mixing the facilities in hybrid communities create more jobs opportunities but limit the affordability of housing, social cohesion and the race diversity. But in Social Condenser models, there are more race diversity safety and healthy environment. These results reflect complexity demands more than mixed-use developments, beyond Jane Jacobs' requirements, and beyond the designation of selected mixed-use zones. This study contributes to the study of how mixed-use development models shift because of various social and economic conditions. The findings from this study can inform architects, investors, policymakers, economists, and planners about factors that sustain mixed-use neighborhoods in the United States and beyond. Urban designers will be able to inform how the seemingly necessary act of laying out mixed-use development can affect the socioeconomic structure of a city. Thus, this study is a useful source for more accurate planning ideas than generic abstract theories or slogans.
Ph.D. in Architecture, December 2016
Show less

Title: Offset Carrier Recording System & Method
Creator: Camras, Marvin
Date: 2009-05-04, 1974-04-23
Description: An offset carrier longitudinal scan recording and reproducing system for television signals wherein an amplitude modulated video signal is...
Show moreAn offset carrier longitudinal scan recording and reproducing system for television signals wherein an amplitude modulated video signal is derived from a television receiver and converted to an offset carrier with a full upper sideband and an attenuated vestigial lower sideband. A direct or offset carrier audio signal may be recorded on the same channel with the offset carrier video signal. During monitoring and playback, the offset carrier is heterodyned to a television broadcast frequency or intermediate frequency and coupled into the television receiver. The same receiver may simultaneously supply video I.F. and audio F.M. signals for recording, and monitor offset carrier audio and video signals supplied to the recording head to facilitate recording adjustments.
Sponsorship: IIT Research Institute
United States Patent
Show less

Title: Magnetic Recording Head
Creator: Camras, Marvin
Date: 1947-11-25
Description: Sponsorship: Armour Research Foundation
United States Patent

Title: STUDIES ON SYNTHETIC APPLICATIONS OF STEREOSELECTIVE AND REGIOSELECTIVE RING OPENING REACTIONS OF AZIRIDINIUM IONS
Creator: Chen, Yunwei
Date: 2014, 2014-12
Description: Aziridinium ions are valuable reactive intermediates in organic synthesis. Regioselective and stereoselective ring opening reactions of...
Show moreAziridinium ions are valuable reactive intermediates in organic synthesis. Regioselective and stereoselective ring opening reactions of aziridinium ions can provide various useful building blocks including optically active vincinal amines, amino alcohols and amino esters. Aziridinium ions are also involved in the biological process of anti-cancer agents. However, aziridinium ions are under-utilized in organic synthesis. In this thesis, we utilize stereoselective and regioselective ring opening reactions of aziridinium ions for synthesis of enantiomerically enriched compounds. Ring opening reactions of aziridinium ions were utilized in intramolecular Friedel-Crafts (FC) reactions for stereoselective and regioselective synthesis of 4-substituted tetrahydroisoquinoline. A series of β-haloamine were prepared as precuresors of aziridinium ions. The reaction conditions for ring opening of aziridinium ions for the FC reactions including temperature, catalysts, and solvents were optimized. Further, the reaction mechanism was studied to prove that the aziridinium ions were formed as the key intermediates during the intramolecular FC reaction. Intermolecular nucleophilic ring opening reaction of aziridinium ions was studied as a convenient method of carbon-carbon formation. Regioselective and stereoselective nucleophilic substitution reactions of aziridinium ions with indole analogues were carried out for the synthesis of optically active tryptamine analogues. The reactions proceeded smoothly to provide the tryptamine analogues in high yield in the presence of halo-sequestering agents, while the reaction provided the tryptamine products in significantly low yield in the absence of halo-sequestering agents. Ring opening reactions of aziridinium ions with malonic esters and Grignard reagents were carried out for the respective synthesis of optically active tryptamine analogues, γ-aminobuyric acid (GABA), and α-amine derivatives. The regiospecific ring opening reactions of aziridinium ions was directly applied for the synthesis of bifunctional ligands which have a potential use in targeted therapy and imaging of cancers. The novel bifunctional chelates with a shorter alkyl spacer C-NETA and 2E-C-NETA as well as the chelates with a longer alkyl spacer 5p-C-NETA were prepared. 5p-C-NETA was conjugated to a cyclic peptide c(RGDyK) as a targeting moiety for use in targeted radiation therapy. In addition, 2E-C-NETA was conjugated to a fluorescent dye Cy5.5 for theranostic applications. The experimental results indicated that the new bifunctional ligands have promising applications in the biomedical field. In summary, stereoselective and regioselective ring opening reactions of aziridinium ions have been successfully applied for the synthesis of optically active compounds such as 4-substituted tetrahydroisoquinolines, tryptamines, γ-aminobuyric acid, α-amine derivatives and the bifunctional chelators. We demonstrated that ring opening of versatile aziridinium intermediates is a strightforward and convenient method for the synthesis of various optically active compounds.
Ph.D. in Chemistry, December 2014
Show less

Title: Test of slender wooden struts for aeroplanes
Creator: Smith, M. A,, Kellener, W. A., Stevens, W. A.
Date: 2009, 1910
Publisher: Armour Institute of Technology
Description: http://www.archive.org/details/testofslenderwoo00smit
Thesis (B.S.)--Armour Institute of Technology

Title: Inclusive measurements at HERA from low to high x, Proceedings of the XLIII International Symposium on Multiparticle Dynamics
Creator: Behnke, Olaf
Date: 2013-09-15, 2013-09-15
Publisher: IIT Press
Description: New inclusive Deep Inelastic Scattering (DIS) measurements are presented, obtained with the H1 and ZEUS detectors at HERA. The results...
Show moreNew inclusive Deep Inelastic Scattering (DIS) measurements are presented, obtained with the H1 and ZEUS detectors at HERA. The results comprise (flavour) inclusive DIS cross sections as well as inclusive charm production. In the area of inclusive DIS, both H1 and ZEUS completed last year their high Q2 Neutral and Charged current measurements exploiting the large statistics from the HERA II running period. For inclusive charm production, H1 and ZEUS published a combination of numerous existing measurements based on various tagging methods. Among other things a precise determination of the running charm quark mass mc(mc) was obtained from the combined data.
Sponsorship: IIT College of Science, High Energy Physics Division of Argonne National Laboratory
Show less

Title: Hierarchical Structured Data Organization System
Creator: Frieder, Ophir, Kapoor, Sanjiv
Date: 2015-09-09, 2015-09-08
Description: A method in a data processing system and apparatus for organizing files or web pages, structured or unstructured, of multiple users stored...
Show moreA method in a data processing system and apparatus for organizing files or web pages, structured or unstructured, of multiple users stored across one or more server computers into hierarchical file structures on a recordable medium of a data processing system. A user-defined metalabel is assigned to each of the electronic files or web pages. The electronic files or web pages are organized as a function of the metalabels into the hierarchical file structures.
Sponsorship: Illinois Institute of Technology
United States Patent
Show less

Title: A CONCEPTUAL SOLAR CHIMNEY PLANT AND FLORAL FARM USING ETFE AND BAMBOO
Creator: De Vita, Niels
Date: 2012-11-20, 2012-12
Description: Motivated by a desire to create an architectural response to the environmental and social challenges of today, the following thesis project...
Show moreMotivated by a desire to create an architectural response to the environmental and social challenges of today, the following thesis project attempts to offer new paths for the future development of the solar chimney energy plant concept originally developed by the German engineer Jӧrg Schlaich in the early 1980s. The starting point of this thesis was to analyze the solar chimney prototype completed in the Manzanares desert in 1982 in order to understand the parameters guiding the design. The analysis allowed me to better understand the potential of the concept and to recognize the opportunity that existed to push the technological boundaries to craft a new design that reflects the current socio-political, economical and environmental context we live in. In the following pages, I attempt to demonstrate that the concept could be made even more appealing through the use of technology and locally available resources. By doing this, I seek to reinvigorate the idea, opening paths for a new conversation about the potential of the project as a social agent for progress. Throughout this thesis, I remain respectful and aware of the accomplishments of the pioneers before me, simply taking cues from their work to suggest new alternatives and solutions to a problem that has been made even more pressing due to the world’s energy crisis and economic uncertainty.
M.S. in Architecture, December 2012
Show less

Title: Constant Speed Drive for Magnetic Recorders
Creator: Camras, Marvin
Date: 1945-04-03
Description: Sponsorship: Armour Research Foundation
United States Patent

Title: THE CHANGE OF KURTOSIS IN IMPORTANCE SAMPLING FOR MONTE CARLO
Creator: Zhang, Xiaodong
Date: 2013, 2013-12
Description: The Mont e Carlo (II IC) Method is commonly used to approximat e mult ivariat e integrals, which can be interpreted as means of random variab...
Show moreThe Mont e Carlo (II IC) Method is commonly used to approximat e mult ivariat e integrals, which can be interpreted as means of random variab les. The IIIC method uses th e sample mean to estimate the tr ue mean. In this thesis, we focus on minimizing th e sample size in MC simulat ion needed to sat isfy the specified error tolerance. Based on t he algorithm proposed by [5], we explain that t he cost of reliable IIIe est imat ion depends not only on variance but also on kurtosis. T herefore, when we try to improve th e efficiency of MC simulation by reducing variance, such as with Importance Sampling (IS), we need also look into the change of kurtosis. We analyze the change of cost in terms of the change of kur tosis and the change of variance. For a special case of IS we explore how to find th e optimal density in order to reduce variance.
M.S. in Applied Mathematics, December 2013
Show less

Title: Method and Apparatus for Detecting Collisions on and Controlling Access to a Communications Channel
Creator: Campbell, Graham M., Wu, Chien-ting
Date: 2009-05-14, 2002-06-18
Description: A nodal apparatus for sending and receiving digital data in multiple data slots has a transmitter for transmitting a request for multiple data...
Show moreA nodal apparatus for sending and receiving digital data in multiple data slots has a transmitter for transmitting a request for multiple data slots during a control minislot. A conflict resolution queue representative of nodal apparatus sending substantially simultaneous requests for transmission resulting in a collision in a minislot is maintained and stored in a memory. A transmission queue representative of nodal apparatus that have successfully transmitted in a minislot and can be queued for data slot transmission is stored in memory. The transmitter sends multiple data slots signals comprising multiple slots of digital data in response to the transmission queue. A receiver receives multiple data slots signals comprising digital data. A high priority transmission queue may also be stored in memory.
Sponsorship: Illinois Institute of Technology
United States Patent
Show less

Title: Juvenile Treatment Center
Creator: Cueva, Hernan
Date: 2010-07-29

Title: Safety Timing Mechanism for Magnetic Recorders
Creator: Camras, Marvin
Date: 1945-08-07
Description: Sponsorship: Armour Research Foundation
United States Patent

Title: ELIASHBERG ANALYSIS OF CUPRATE OXIDE SUPERCONDUCTORS
Creator: Ahmadi, Omid
Date: 2011-11, 2011-12
Description: In this thesis, evidence for antiferromagnetic spin uctuations as the pairing glue in high temperature superconductors is presented through a...
Show moreIn this thesis, evidence for antiferromagnetic spin uctuations as the pairing glue in high temperature superconductors is presented through a modi ed Eliashberg analysis of experimental tunneling data of Bi2212 over a wide range of doping. In particular, the normalized conductance data of the junctions, from optimal to overdoped, will be tted at T=0K using d-wave Eliashberg equations where the spectral function is modeled after spin uctuation spectra seen in experiments. The corresponding real and imaginary diagonal and anomalous self-energy curves are extracted and compare well to photoemission experiments. This is followed by a temperature dependent Eliashberg analysis where the spectral function is now temperature dependent, based on trends seen in inelastic neutron scattering experiments. New results for temperature dependent self energy curves are also compared to experiment with slight deviations. Finally, the Josephson product is calculated as an independent check of the tunneling matrix used in tting the data.
Ph.D. in Physics, December 2011
Show less

Title: Reel Lock
Creator: Camras, Marvin, Galus, Stanley A.
Date: 4/23/2009, 1966-10-11
Description: Sponsorship: IIT Research Institute
United States Patent

repository.iit

Search the repository

Pages

Pages

Enabled Filters

Refine Results

Type

Date

Academic status of creator

Department

Subject

Creator

Part of

Rights