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(6,101 - 6,120 of 10,083)
Pages
- Title
- Lewis Hall, Illinois Institute of Technology
- Date
- 2015
- Description
-
70 East 33rd Street, Chicago, Illinois
- Collection
- Building History project (buildinghistory.iit.edu)
- Title
- DESIGN, SYNTHESIS AND CHARACTERIZATION OF NOVEL MATERIALS TO CONSTRUCT HIGH-ENERGY-DENSITY RECHARGEABLE CELLS
- Creator
- Yue, Zheng
- Date
- 2018
- Description
-
ABSTRACTRechargeable electrical energy storage cells, especially lithium-ion cells, are the critical technology that realized the great...
Show moreABSTRACTRechargeable electrical energy storage cells, especially lithium-ion cells, are the critical technology that realized the great development of the portable electronic devices, such as laptop computers and cell phones. But in some other areas, such as the renewable energy industries and electrical vehicles, which are developing fast and more and more important for environment protection, the current rechargeable energy storage cells cannot meet their requirements, because of their limited energy density.Two types of cells, lithium sulfur batteries (LSBs) and supercapacitors, are attracting peoples’ attention for their potential to be developed as the future high-energy-density rechargeable cells. However, Li-S batteries are suffering from the fast discharging capacity fading, which is still a barrier for the large-scale commercialization. Although supercapacitors have been widely used in various areas, their energy density is much lower than current lithium-ion batteries, which limited their application only in assistant systems, such as regenerative brakes.To solve these problems, novel design for both the electrode material and electrolytes are required. In this thesis work, we focused our study in four areas: (1) New electrolytes for LSBs; (2) Cathode material for LSBs; (3) Activated carbon electrodes for electrical double layer capacitors (EDLCs); and (4) Electrolyte formulations for EDLCs. We investigated three types of new compounds as a co-solvent for the electrolyte of LSBs: fluorinated ethers, fluoroether sulfones and sulfonium ILs, which have improved the discharging capacity and cycling stability of LSBs. A novel S@HCN@MnO2 cathode material was designed and synthesized, which performed excellent long-term performance. A novel porous AC material with very high SSA was synthesized, and EDLCs with new electrolyte formulations were tested, which showed wide electrochemical potential window and high energy density.
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- Title
- GUARANTEED, ADAPTIVE, AUTOMATIC ALGORITHMS FOR UNIVARIATE INTEGRATION: METHODS, COSTS AND IMPLEMENTATIONS
- Creator
- Zhang, Yizhi
- Date
- 2018
- Description
-
This thesis investigates how to solve univariate integration problems using numerical methods, including the trapezoidal rule and the Simpson...
Show moreThis thesis investigates how to solve univariate integration problems using numerical methods, including the trapezoidal rule and the Simpson's rule. Most existing guaranteed algorithms are not adaptive and require too much a priori information. Most existing adaptive algorithms do not have valid justification for their results. The goal is to create adaptive algorithms utilizing the two above-mentioned methods with guarantees. The classes of integrands studied in this thesis are cones. The algorithms are analytically proved to be a success if the integrand lies in the cone. The algorithms are adaptive and automatically adjust the computational costs based on the integrand values. The lower and upper bounds on the computational costs for both algorithms are derived. The lower bounds on the complexity of the problems are derived as well. By comparing the upper bounds on the computational cost and the lower bounds on the complexity, our algorithms are shown to be asymptotically optimal. Numerical experiments are implemented.
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- Title
- AN EXPERIMENTAL INVESTIGATION OF THE DYNAMICS OF AN INVERTED SERRATED FLAG
- Creator
- MURUGESAN PAZHANI, KAUSHIK
- Date
- 2018
- Description
-
An experimental investigation of the role of leading-edge triangular serrations was conducted to understand the role of free leading edge in...
Show moreAn experimental investigation of the role of leading-edge triangular serrations was conducted to understand the role of free leading edge in large amplitude flapping of an inverted flag. The serrations are in the form of triangles arranged spanwise along the leading edge of the flag model. High – speed camera imaging experiment was conducted in open – loop wind tunnel at air – speeds ranging from 3.3m/s to 6.5m/s. For this velocity range, the non – dimensional bending stiffness (the ratio of bending force to the fluid inertial forces) ranges from 0.285 to 0.073. Flow visualization experiment using PIV technique was conducted for baseline flag and two serrated flags at flow velocity 4.8m/s (bending stiffness – 0.13). At a critical value of the velocity or bending stiffness, the flag oscillations transition from low amplitude asymmetric oscillations to symmetric high amplitude oscillations. This critical velocity is higher for the serrated flags indicating a reduction in the instantaneous lift force. The critical velocity was found to increase as serration height increased for a fixed number of serrations. The serrations create leading edge counter rotating eddy structures that interact with the primary tip vortex formation and breakdown process leading to changes in critical velocity, amplitude and frequency. The flapping amplitude and frequency were found to decrease as serration height increased for a fixed number of serrations. The “shallow” serrations have no effect of serrations while “tall” serrations decrease the non – dimensional flapping frequency and amplitude. The phase averaged velocity results show serrations delay leading edge vortex formations, and flow separation. This leads to decrease in pressure difference causing the serrated flag to deform less than baseline flag. Leading edge vortex formed in serrated flags were observed to be deformed compared to baseline flag leading edge vortex. Vortex deformation is due to serration induced three-dimensional flow effects. Serrated flags exhibit elongated vortical structures from flag tip instead of periodic vortex shedding in rebound phase. Streamlines used for qualitative analysis also shows, serrated flags lack periodic vortex formation and shedding during rebound phase. Using qualitative evidence from streamline plots and vorticity contour plots (elongated vortex structures) it could be stated due to change in leading edge geometry, serrated flags demonstrate a non – VIV flapping.
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- Title
- IIT swimmers John Pottle and Steve Gannon with Tommy, a red-tailed hawk at Brookfield Zoo, Brookfield, Illinois, 1979
- Date
- 1979
- Description
-
Provided caption: "Brookfield Zoo's red-tailed hawk Tommy sizes up two of his Illinois Institute of Technology foster parents, IIT varsity...
Show moreProvided caption: "Brookfield Zoo's red-tailed hawk Tommy sizes up two of his Illinois Institute of Technology foster parents, IIT varsity swimming team co-captains John Pottle (left), Berkeley, Illinois, and Steve Gannon, West Chicago. IIT's varsity swimming team, whose mascot is the Scarlet Hawk, recently raised $100 to adopt the hawk, under Brookfield Zoo's animal adoption program which supports exhibits and services for the public."
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Armour Research Foundation clay grinding machine, Illinois Institute of Technology, Chicago, Illinois, ca. 1950s
- Date
- 1950-1959
- Description
-
From the attached press release: "Brainstorming by engineering economists at Armour Research Foundation of Illinois Institute of Technology...
Show moreFrom the attached press release: "Brainstorming by engineering economists at Armour Research Foundation of Illinois Institute of Technology uncovered methods of grafting clay raw material to reduce particle size of limestone and eliminate surface popping, or "spelling." This machine is used in a spooner's plant to mix clay and water, remove air from mixture, and extrude clay in cylindrical form." Photographer unknown. Date of photograph unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Al Litvin holding the all-clay construction block developed at Armour Research Foundation, Illinois Institute of Technology, Chicago, Illinois, ca. 1956
- Date
- 1956
- Description
-
From the attached press release: "New, colorful, all-clay construction block developed at Armour Research Foundation of Illinois Institute of...
Show moreFrom the attached press release: "New, colorful, all-clay construction block developed at Armour Research Foundation of Illinois Institute of Technology, Chicago, weighs less than conventional concrete blocks. Al Litvin, supervisor of masonry materials, holds the ceramic block after removing it from molding machine." Photographer unknown. Date of photograph unknown. Date listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Stanley Cohn and radar apparatus, Illinois Institute of Technology, Chicago, Illinois, ca. 1950s
- Date
- 1950-1959
- Description
-
From the attached press release: "Stanley I. Cohn, supervisor of communications and radio frequency applications at Armour Research Foundation...
Show moreFrom the attached press release: "Stanley I. Cohn, supervisor of communications and radio frequency applications at Armour Research Foundation of Illinois Institute of Technology, evaluates portion of a transmitter for a specialized radar apparatus." Photographer unknown. Date of photograph unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Grant Wantling and the M39 cannon, Illinois Institute of Technology, Chicago, Illinois, ca. 1950s
- Date
- 1951-1959
- Description
-
From the attached press release: "Fastest-firing single-barrel cannon, the M39 revolver-type weapon, is fed a ribbon of 20 mm ammunition by...
Show moreFrom the attached press release: "Fastest-firing single-barrel cannon, the M39 revolver-type weapon, is fed a ribbon of 20 mm ammunition by Grant Wantling, associate engineer at Armour Research Foundation of Illinois Institute of Technology. The cannon, currently used on jet warplanes, is the result of eight years intensive research by ARF, the government, and industrial concerns." Photographer unknown. Date of photograph unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Dr. Stanley Katz and the Aerosoloscope, Illinois Institute of Technology, Chicago, Illinois, ca. 1955
- Date
- 1955
- Description
-
From the attached press release: "Dr. Sidney Katz, senior chemist at Armour Research Foundation of Illinois Institute of Technology, records...
Show moreFrom the attached press release: "Dr. Sidney Katz, senior chemist at Armour Research Foundation of Illinois Institute of Technology, records data from the "Aerosoloscope," an electronic instrument he helped develop. The device, which measures and counts airborne particles, may be the forerunner of a detector against biological warfare." Photographer unknown. Date of photograph unknown. Date listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Armour Research Foundation ceramics engineer using optical pyrometer, Illinois Institute of Technology, Chicago, Illinois, ca. 1940s
- Date
- 1940-1949
- Description
-
From the attached press release: "Optical Pyrometer is used by a ceramics engineer at Armour Research Foundation of Illinois Institute of...
Show moreFrom the attached press release: "Optical Pyrometer is used by a ceramics engineer at Armour Research Foundation of Illinois Institute of Technology to check temperature of pot furnace. Furnace converts carbonates to oxides following completion of ore dressing processes." Photographer unknown. Date of photograph unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Ogden Bog gag photograph, Illinois Institute of Technology, Chicago, Illinois, ca. 1955
- Date
- 1955
- Description
-
Staged photograph of two rowers in a boat and a "swimmer" in Ogden Field. The field, which was derisively nicknamed "Ogden Bog" by the...
Show moreStaged photograph of two rowers in a boat and a "swimmer" in Ogden Field. The field, which was derisively nicknamed "Ogden Bog" by the students, was the home of the Armour Institute and Illinois Tech track and football field. Hermann Hall was built on the site of Ogden Field, and The Bog, Illinois Tech's student recreation and dining center, was named after the former athletic venue. This photograph was printed in the 1955 installment of The Integral, Illinois Tech's yearbook. Photographer unknown. Date of photograph is unknown. Date listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Physical Education class, Illinois Institute of Technology, Chicago, Illinois, 1943
- Date
- 1943
- Description
-
Photograph of students climbing ropes in a Physical Education class.
- Collection
- Office of Communications and Marketing photographs, 1905-1999
- Title
- Howard Monroe Raymond
- Date
- 1895-1932
- Description
-
Photograph of Howard Monroe Raymond, President of Armour Institute of Technology from 1922 to 1932. Following the death of Frank Gunsaulus in...
Show morePhotograph of Howard Monroe Raymond, President of Armour Institute of Technology from 1922 to 1932. Following the death of Frank Gunsaulus in 1921, Howard Monroe Raymond was appointed acting president. He accepted the permanent role 14 months later and became Armour Institute's second president. Raymond was an instructor and professor in the Physics department, having arrived on campus in 1895, and he served as Dean of Engineering for 19 years before becoming president - a role he continued while president until 1927. Photographer unknown. Date of photograph is unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- IIT students and faculty meeting the victorious College Bowl team at O'Hare Airport, Chicago, Illinois, 1964
- Date
- 1964
- Description
-
Photograph of faculty and students at O'Hare Airport, welcoming the victorious Illinois Institute of Technology College Bowl team back to...
Show morePhotograph of faculty and students at O'Hare Airport, welcoming the victorious Illinois Institute of Technology College Bowl team back to Chicago in the spring of 1964. IIT's College Bowl team defeated Worcester Polytechnic and the University of Denver before falling to Whittier College. This photograph is likely from the celebrations on April 26, 1964. Between 70 and 100 celebrants greeted the team on April 26; when they again returned victorious on May 3, the crowd was estimated at 300. IIT's College Bowl team was captained by John Fenley, and also included John Diekelman, George Ritzlin, and Red Weil. Photographer unknown.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- IBM 650 computer, Armour Research Foundation, Illinois Institute of Technology, ca. 1954-59
- Date
- 1954-1959
- Description
-
Photograph of two men operating the IBM 650 Magnetic Drum Data-Processing Machine at Armour Research Foundation. Photographer unknown. Date of...
Show morePhotograph of two men operating the IBM 650 Magnetic Drum Data-Processing Machine at Armour Research Foundation. Photographer unknown. Date of photograph unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- IIT students and faculty meeting the victorious College Bowl team at O'Hare Airport, Chicago, Illinois, 1964
- Date
- 1964
- Description
-
Photograph of faculty and students at O'Hare Airport, welcoming the victorious Illinois Institute of Technology College Bowl team back to...
Show morePhotograph of faculty and students at O'Hare Airport, welcoming the victorious Illinois Institute of Technology College Bowl team back to Chicago in the spring of 1964. IIT's College Bowl team defeated Worcester Polytechnic and the University of Denver before falling to Whittier College. This photograph is likely from the celebrations on April 26, 1964. Between 70 and 100 celebrants greeted the team on April 26; when they again returned victorious on May 3, the crowd was estimated at 300. IIT's College Bowl team was captained by John Fenley, and also included John Diekelman, George Ritzlin, and Red Weil. Photographer unknown.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- IITRI Eclipse Expedition, ca. 1965-1966
- Date
- 1965-1966
- Description
-
Photograph of IIT Research Institute personnel and a Chevrolet Corvair 95 van on (or on their way to) a so-called Eclipse Expedition, likely...
Show morePhotograph of IIT Research Institute personnel and a Chevrolet Corvair 95 van on (or on their way to) a so-called Eclipse Expedition, likely either in the Cook Islands in 1965 or near Porto Alegre, Brazil, in 1966. Photographer unknown. Date of photograph unknown. Date range listed is approximate.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Pledge Interfraternity Council Halloween party, Illinois Institute of Technology, 1973
- Date
- 1973
- Description
-
Photograph of students bobbing for apples at the Interfraternity Halloween party in 1973. In the 1970s, the Pledge Interfraternity Council...
Show morePhotograph of students bobbing for apples at the Interfraternity Halloween party in 1973. In the 1970s, the Pledge Interfraternity Council held an annual Halloween party for children from an area orphanage. Photographer unknown.
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- Office of Communications and Marketing photographs, 1905-1999
- Title
- Orchestra performance at American Power Conferences All Engineers Dinner, Chicago, Illinois, 1952
- Date
- 1952
- Description
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Photograph of O. Gordon Erickson conducting the Illinois Tech orchestra at the American Power Conference's All Engineers Dinner in 1952. The...
Show morePhotograph of O. Gordon Erickson conducting the Illinois Tech orchestra at the American Power Conference's All Engineers Dinner in 1952. The university's glee club also performed. Photographer unknown.
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- Office of Communications and Marketing photographs, 1905-1999