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(4,421 - 4,440 of 10,083)
Pages
- Title
- Proposed hydroelectric development on the west branch of the Penobscot River, Maine
- Creator
- Cooney, James G., Simpson, Herman N, Kinnally, Raymond W.
- Date
- 2009, 1916
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/proposedhydroele00coon
Thesis (B.S.)--Armour Institute of Technology; Includes folded leaves in back pocket
- Title
- Proposed hydraulic development at Bow Fort Falls, Alberta, Canada
- Creator
- Wignall, W. J.
- Date
- 2009, 1920
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/proposedhydrauli00wign
Thesis (B.S.)--Armour Institute of Technology; Includes folded leaves in back pocket
- Title
- Proposed electrification of the Milwaukee branch, Chicago & Northwestern railway
- Creator
- Case, H. L., Fernandez-mareque, F., Schoembs, F., Whitmore, R. W.
- Date
- 2009, 1914
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/proposedelectrif00case
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaf 38 Includes folded...
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Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaf 38 Includes folded leaves in back pocket
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- Title
- Proposed hydro-electric development at French's Mill, N.Y.
- Creator
- Cramer, August C., Wood, John, Lucas, John T.
- Date
- 2009, 1913
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/proposedhydroele00cram
Thesis (B.S.)--Armour Institute of Technology
- Title
- Proposed hydro-electrical development on the Columbia River at the Dalles, Oregon
- Creator
- Ehrlich, W. M, Roberts, W. F., Norton, J. C.
- Date
- 2009, 1914
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/proposedhydroele00ehrl
Thesis (B.S.)--Armour Institute of Technology; Includes folded leaves in back pocket ;...
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Thesis (B.S.)--Armour Institute of Technology; Includes folded leaves in back pocket ; Bibliography: leaf 25
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- Title
- A proposed design of the air testing laboratory for the greater Armour Institute of Technology
- Creator
- Walter, Charles T
- Date
- 2009, 1921
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/proposeddesignof00walt
Thesis (B.S.)--Armour Institute of Technology, 1921 B.S. in Mechanical Engineering, 1921
- Title
- SYNERGETIC COMPUTATIONAL AND EXPERIMENTAL STUDIES OF WALL-BOUNDED TURBULENT FLOWS AND THEIR TWO-DIMENTIONALITY
- Creator
- Vinuesa, Ricardo
- Date
- 2013, 2013-05
- Description
-
N/A
PH.D in Mechanical and Aerospace Engineering, May 2013
- Title
- The rotary kiln applied to calcination of phosphates
- Creator
- Soper, Ellis Clarke
- Date
- 2009, 1913
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/rotarykilnapplie00sope
Thesis (B.S.)--Armour Institute of Technology, 1913 B.S. in Mechanical Engineering, 1913
- Title
- The retardation of combustion through wire screens in closed pipes
- Creator
- Conway, F. J, Hall, K. V
- Date
- 2009, 1917
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/retardationofcom00conw
Thesis (B.S.)--Armour Institute of Technology, 1917 B.S. in Fire Protection Engineering,...
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Thesis (B.S.)--Armour Institute of Technology, 1917 B.S. in Fire Protection Engineering, 1917
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- Title
- Rotary kiln
- Creator
- Soper, E.
- Date
- 2009, 1910
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/rotarykiln00sope
Thesis (B.S.)--Armour Institute of Technology
- Title
- Resilience tests of automobile tires under commercial conditions of operation
- Creator
- Vanderkieft, Nicholas, Yorke, William H
- Date
- 2009, 1913
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/resiliencetestso00vand
Thesis (B.S.)--Armour Institute of Technology
- Title
- AN EMPIRICAL GROUNDED THEORY APPROACH TO CHARACTERIZING ADVANCED MATHEMATICAL THINKING IN COLLEGE CALCULUS
- Creator
- Nabb, Keith A.
- Date
- 2013, 2013-07
- Description
-
The research literature has made calls for greater coherence and consistency with regard to the meaning and use of the term advanced...
Show moreThe research literature has made calls for greater coherence and consistency with regard to the meaning and use of the term advanced mathematical thinking (AMT) in mathematics education (Artigue, Batanero, & Kent, 2007; Selden & Selden, 2005). Educators and researchers agree that students should be engaged in AMT but it is unclear precisely what is meant by AMT or how these engagements may manifest themselves in student work. Moreover, many contributions are aimed at advancing theory with little effort to connect with classroom practice. The intent of this study was to examine individuals in their natural problem solving states and to empirically describe how AMT might unfold in the context of nonroutine calculus problems. The study was conducted during the spring semester of 2012. Thirteen students solved three nonroutine calculus problems, each loosely couched in theories of AMT—process-concept duality (Gray & Tall, 1994), epistemological obstacle (Bachelard, 1938; Harel & Sowder, 2005; Sierpińska, 1987), and the basic metaphor of infinity of mathematical idea analysis (Lakoff & Núñez, 2000). While empirical instances of these theories were present, students predominantly displayed idiosyncratic strategies by way of imposing mathematical/scientific objects, tools, or concepts on the local domain of the problem space. Efforts to first individualize the task were followed by completing the task through this individualization. Both successful and unsuccessful problem attempts were documented in the form of novel tool usage, visualization, and/or abstraction through communication. x The outcome of this study suggests a need to further examine students’ use of procedures and how students successfully anticipate the utility of these procedures. Additionally, further work is needed to explain both the elevated use of visualization and how/why discussions with others provide momentum for abstracting solutions to contradictory problems. With respect to classroom practice, students’ novel use of well-known mathematics mirrors the habits of research mathematicians in their professional work. Importing such uses into classroom discourse has the potential to deepen connections of mathematics content and to enrich mathematics experiences through nonstandard methods of problem solving.
PH.D in Mathematics Education, July 2013
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- Title
- OPTIMIZATION OF EXTRACTION METHOD FOR AFLATOXINS AND OCHRATOXIN A DETERMINATION IN GRAIN-BASED PRODUCTS
- Creator
- Xu, Jianwen
- Date
- 2012-07-16, 2012-07
- Description
-
A method for simultaneous detection of mycotoxins using high performance liquid chromatography (HPLC) coupled with a fluorescence detector ...
Show moreA method for simultaneous detection of mycotoxins using high performance liquid chromatography (HPLC) coupled with a fluorescence detector (FLD) and photochemical reaction for enhanced detection (PHRED) for post-column derivatization was developed in this study. Mycotoxins of interest included aflatoxin B1, B2, G1, G2 and ochratoxin A. Samples extraction was performed with 80% acetonitrile aqueous solution. Mycosep® 226 Aflazon+ columns were employed for samples cleanup. This optimized method achieved low limit of detection (LOD) that ranged from 0.1ng/g to 0.5ng/g and a limit of quantification (LOQ) ranged from 0.5ng/g to 2.5ng/g for all five mycotoxins in all cereal matrices (wheat, barley, oats) studied, which was under the regulatory limit (20ng/g) from United States. Mean recovery rates for all five mycotoxins from all spiked samples ranged from 93.88% to 104.40%, with high repeatability (relative standard deviation ranged from 1.38% to 8.79%). This method was used to determined ochratoxin A in cereal samples purchased from grocery stores in the United States.
M.S. in Food Safety and Technology, July 2012
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- Title
- Fabrication and Characterization of High Aspect Ratio Hard X-ray Zone Plates with Ultrananocrystalline Diamond Molds
- Creator
- Wojcik, Michael J.
- Date
- 2013, 2013-05
- Description
-
Hard x-ray zone plate development has played an important role in improving x-ray microscopy through ner resolution and greater functional X...
Show moreHard x-ray zone plate development has played an important role in improving x-ray microscopy through ner resolution and greater functional X-ray energy. Similar to circular di raction gratings except with changing period as a function of radius, zone plates are di ractive focusing optics with resolution determined by the outer most zone width (OZW). Hard X-ray zone plates are mostly phase zone plates with a limited e ciency that peaks when the zone material causes a -phase shift on the x-ray, and the zone thickness required can be multiple microns dependent on x-ray energy. The combination of sub-100-nm resolution and peak e ciency for hard xrays requires very high aspect ratio zones. In this dissertation, two materials were used to fabricate high aspect ratio zone plates in a single layer mold and a two layer mold process. Ultrananocrystalline diamond (UNCD) is composed of 2-5 nm diamond grains bounded together with graphitic bonds. This form of diamond can be deposited onto substrates with thickness greater than a micron and with physical properties similar to bulk diamond. Hydrogen silsesquioxane (HSQ) is a spin on glass that is also a high contrast electron beam lithography resist. A thick layer of HSQ can be patterned into high aspect ratio structures and could be used as a pattern transfer mask for several etch recipes. Both of these materials were used to fabricate up to 25 aspect ratio zone plates and with OZW of 60 and 80 nm. Zone plates fabricated with UNCD were the rst high aspect ratio zone plates using a diamond like material and this technique was leveraged into a new fabrication method using two layers as an electroplating mold. Fabricated zone plates were characterized to measure the optical properties to compare with the fabrication properties. After characterization, several zone plate models based on fabricated zone plates were developed and simulated using a wave propagation technique to compare with the characterization data. The results xiii from fabrication, characterization, and simulation of zone plates with 25 aspect ratio will be presented as well as future possibilities for the techniques used.
PH.D in Physics, May 2013
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- Title
- RADAR AND COMMUNICATION CO-DESIGN: A CONSTANT ENVELOPE RADCOM SYSTEM
- Creator
- Testi, Nicolo
- Date
- 2014, 2014-12
- Description
-
NO ABSTRACT
Ph.D. in Electrical and Computer Engineering, December 2014
- Title
- A new thermo-electric fluid-meter and hot-wire anemometer
- Creator
- Seyferlich, Walter M.
- Date
- 2009, 1920
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/newthermoelectri00seyf
Thesis (B.S.)--Armour Institute of Technology
- Title
- Researches on water resistant glues
- Creator
- Butterman, Samuel.
- Date
- 2009, 1919
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/researchesonwate00butt
Thesis (B.S.)--Armour Institute of Technology, 1919 Bibliography: leaves 88-90 B.S. in...
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Thesis (B.S.)--Armour Institute of Technology, 1919 Bibliography: leaves 88-90 B.S. in Chemical Engineering, 1919
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- Title
- Renewal of the Milwaukee Avenue viaduct
- Creator
- Anderson, S. C, Beach, W. E
- Date
- 2009, 1912
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/renewalofmilwauk00ande
Thesis (B.S.)--Armour Institute of Technology, 1912 B.S. in Civil Engineering, 1912
- Title
- Researches in radio telephony
- Creator
- Petzing, Erwin Walter
- Date
- 2009, 1919
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/researchesinradi00petz
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaf 25
- Title
- The relative strengths of spiral reinforced concrete columns
- Creator
- Aeberly, John J., Pitts, Guy C.
- Date
- 2009, 1913
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/relativestrength00aebe
Thesis (B.S.)--Armour Institute of Technology; Includes index Bibliography: leaf 41