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(4,321 - 4,340 of 10,083)
Pages
- Title
- Installation and test of ados CO�b2�s recorder
- Creator
- Ehretsman, John Lee.
- Date
- 2009, 1907
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/installationtest00ehre
Thesis (B.S.)--Armour Institute of Technology, 1907 Bibliography: leaf 26 and index B.S....
Show morehttp://www.archive.org/details/installationtest00ehre
Thesis (B.S.)--Armour Institute of Technology, 1907 Bibliography: leaf 26 and index B.S. in Mechanical Engineering, 1907
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- Title
- Investigation of the design of apparatus for the measurement of automatic sprinkler distribution
- Creator
- Kingsley, Thomas, Jr., Sabiston, Kenneth M.
- Date
- 2009, 1920
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/investigationofd00king
Thesis (B.S.)--Armour Institute of Technology
- Title
- Influence of valve setting on efficiency and capacity of a 25 horse power International Harvester Company gasoline engine
- Creator
- Menke, Edward, Goetz, Oscar
- Date
- 2009, 1914
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/influenceofvalve00menk
Thesis (B.S.)--Armour Institute of Technology
- Title
- NOVICE HIGH SCHOOL SCIENCE TEACHERS: LESSON PLAN ADAPTATIONS
- Creator
- Scharon, Aracelis Janelle
- Date
- 2013, 2013-05
- Description
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The Next Generation Science Standards (NRC, 2013) positions teachers as responsible for necessary decision making about how their intended...
Show moreThe Next Generation Science Standards (NRC, 2013) positions teachers as responsible for necessary decision making about how their intended science lesson plan content supports continuous student science learning. Teachers interact with their instructional lesson plans in dynamic and constructive ways. Adapting lesson plans is complex. This process of adapting lesson plans may play an important role in affording and constraining teachers’ actions and students’ learning (Brown, 2009). This study explored how five novice chemistry teachers (under 4 years of total teaching experience) at five Midwestern high schools adapted or retained their honors chemistry instructional lesson plans, and what associated contextual factors influenced their decisions. Using a case study design, this study was conducted during the fall semester of 2013 when teachers were focusing on introductory chemistry topics. Three frameworks (pedagogical content knowledge (PCK), teacher decision making, and pedagogical discontentment and self-efficacy) were used to investigate the relationships between teacher adaptations, contextual factors and decision making. The outcome of this study was the identification of 15 types of adaptations and 17 relevant contextual factors. Contextual factors were categorized by factors that relate to students or the teacher. Adaptations were categorized into three overarching types of adaptations. Lesson plan adaptations and contextual factors are discussed in the context of research on teacher decision making and lesson plan adaptations.
PH.D in Science Education, May 2013
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- Title
- ANALYSIS OF LOW DIMENSIONAL MAGNETIC SYSTEMS CONTAINING CHROMIUM(III) AND COBALT(II) LIGATED BY THE SQUARATE LIGAND: MAGNETIC CHARACTERIZATION, BIOLOGICAL CHARACTERIZATION, INSTRUMENTAL DEVELOPMENT, AND SOFTWARE DEVELOPMENT
- Creator
- Mcneely, James Halley
- Date
- 2013, 2013-07
- Description
-
A large series of Chromium(III) and Cobalt(II) complexes containing the C4O4 (squarate) ligand have been synthesized and characterized...
Show moreA large series of Chromium(III) and Cobalt(II) complexes containing the C4O4 (squarate) ligand have been synthesized and characterized magnetically. These complexes include simple dimeric Cr(III) systems that display a wide range of isotropic exchange couplings. One of these dimers shows interesting biological activity pertaining to the cellular uptake of glucose. This same compound also enhanced proton relaxation in T1 and T2 NMR studies. Computational work done on these dimeric systems showed excellent agreement with experimental results, and was used to confirm the structure of the complexes. The effect of the bridging squarate ligand was also studied computationally. The squarate ligand significantly contributed to the exchange coupling in the dimeric systems, and was shown to behave countercomplementary to the μ-hydroxo bridges. This is the first explicit observation of countercomplementarity in Chromium(III) systems. Co3(OH)2(C4O4) · 3H2O, a cobalt chain structure featuring an interesting low temperature spin-idle phase, was also synthesized. It was found that based on storage conditions, this compound either stays stable after grinding or transforms into the structure Co(C4O4)(H2O)2. In addition, grinding the sample shows an out-of-phase maxima at ≥6 K that has a frequency dependence characteristic of a spin glass. A new software package was also developed to simulate Electron Paramagnetic Resonance (EPR) spectra using full numerical diagonalization of the secular equation. This program was written using Wolfram Mathematica, and holds several advantages over currently available software. These advantages include a graphical user-interface and parallelization capabilities
PH.D in Chemistry, July 2013
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- Title
- HIGH-FREQUENCY TRADING, LOW-FREQUENCY TRADING AND THE LIMIT ORDER MARKET
- Creator
- Li, Kun
- Date
- 2015, 2015-07
- Description
-
The emergence of High-Frequency Trading (HFT) has met with mixed reactions in both investment and academic communities. However, there still...
Show moreThe emergence of High-Frequency Trading (HFT) has met with mixed reactions in both investment and academic communities. However, there still exist gaps on distinguishing and interpreting the impact of HFT on the Low-Frequency Trading (LFT) side. In this thesis, I present three chapters that address the impact of HFT to LFT. I find evidence to distinguish trading generated by HFT in the limit order market, and consequently apply to explore how HFT affects LFT in terms of the liquidity and the order execution quality. In addition, I further explore the fleeting orders generated by HFT and their impact on the liquidity of LFT.
Ph.D. in Management Science, July 2015
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- Title
- STEREOTYPE THREAT: THE EFFECT OF MINDFULNESS ON GENDER DIFFERENCES IN SPATIAL REASONING
- Creator
- Leon, Adeline
- Date
- 2014, 2014-12
- Description
-
Stereotype threat is a phenomenon in which performance is inhibited due to the psychological threat of an individual’s association with a...
Show moreStereotype threat is a phenomenon in which performance is inhibited due to the psychological threat of an individual’s association with a group believed to underperform on the task at hand (Steele, 1997). Though stereotype threat is typically attributed to race and ethnicity, there is a gender stereotype effect as well, caused by the notion that women are underperformers in spatial reasoning. Mindfulness, with its focus on acceptance and taking a non-judgmental stance, has been associated with broad physical, emotional, and cognitive benefits (Malinowski, 2013) that could counter these negative psychological effects and improve performance during a stereotype threat task. This study explores the relationship between mindfulness and women’s performance on a spatial reasoning task. A total of 256 women were randomly assigned to one of two conditions: a stereotype threat primed group or a stereotype threat non-primed group. The study found no statistically significant relationship between mindfulness, spatial reasoning, and priming. However, future studies based on these findings may still contribute to the literature by including a mindfulness intervention, conducting a similar study in person, or assessing potential benefits of mindfulness in ethnic minorities. These studies may lead to more valuable interventions to overcome the effects of stereotype threat.
M.S. in Psychology, December 2014
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- Title
- MEASURING DEGREE OF BILINGUALISM AND ITS EFFECT ON COGNITIVE PERFORMANCE
- Creator
- Leon, Adeline
- Date
- 2017, 2017-07
- Description
-
Bilingualism is a unique experience that has been shown to have a distinct impact on cognitive performance: disadvantages in language...
Show moreBilingualism is a unique experience that has been shown to have a distinct impact on cognitive performance: disadvantages in language production (Gollan, Montoya, Fennema-Notestine, & Morris, 2005) and advantages in executive functioning skills (Bialystok, Craik, Klein, Viswanathan, 2004; Costa, Hernandez, Sebastian-Galles, 2008). However, some researchers assert that bilingual differences do not exist at all (Kousaie & Phillips, 2012a, 2012b; Paap & Greenberg, 2013). These discrepancies can have a substantial effect on neuropsychological assessment results, diagnoses, and treatment recommendations. The purpose of this study was to measure bilingualism in patients presenting for neuropsychological testing to determine the effect of degree of bilingualism on cognitive performance. Bilingualism was measured in an objective, continuous manner using the Peabody Picture Vocabulary Test (PPVT; Dunn & Dunn, 2007) to assess proficiency in English and the Test de Vocabulario en Imagenes Peabody (TVIP; Dunn, Lugo, Padilla, Dunn, 1986) to assess proficiency in Spanish. This bilingualism index was used to measure the effect of degree of bilingualism on neuropsychological test performance in English/Spanish bilinguals assessed in their dominant language. Archival data from 99 participants presenting for neuropsychological testing were used to examine the bilingualism effect on the following cognitive domains: shifting of set, divided attention, naming, lexical retrieval, and verbal working memory. With the exception of the BNT, results of linear regression analyses revealed no significant effect of bilingualism on cognitive performance in any of the domains measured. Future research may investigate alternative ways to measure bilingualism to facilitate proper diagnosis and treatment recommendations in a clinical population.
Ph.D. in Psychology, July 2017
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- Title
- OPTIMIZATION OF WHOLE HOUSE RETROFIT PACKAGES FOR TARGETING 50% ANNUAL ENERGY USE REDUCTIONS IN PRE-1978 CHICAGOLAND HOMES
- Creator
- Aguilar Leinartas, Honnie
- Date
- 2014, 2014-07
- Description
-
New standards and guidelines for energy consumption for the various building sectors in the United States are being developed by organizations...
Show moreNew standards and guidelines for energy consumption for the various building sectors in the United States are being developed by organizations such as the US Department of Energy and others. These typically include goals for all existing residential buildings to pursue deep energy retrofits that reduce their energy consumption by at least 50% relative to the regional average for the 2005 stock of that particular building type by the year 2030. To better inform these energy savings goals, this work relies on whole building energy simulation and optimization to construct a “tool-box” of prescriptive deep energy retrofit solutions that can be applied to a large portion of a subset of the housing stock responsible for a significant portion of residential energy use in the Chicagoland area: existing single-family detached homes built prior to 1978. Ten typology groups of pre-1978 single-family homes were considered for energy retrofit package optimization with a target of 50% annual site energy reductions. Simulations were conducted as a two-step process using sequential search optimization functions in BEopt and EnergyPlus as the simulation engine. First, optimizations of the building enclosure for each typology were performed and the combined highest efficiency, least cost packages were applied to the base models. Second, optimizations based on the modified base models were performed using several heating, ventilation and air-conditioning (HVAC) system options, and an optimal cost-effective package was chosen for each typology based on maximizing annual energy reductions, payback periods, and modified internal rates of return (MIRR). Results reveal that prescriptive deep energy retrofit solutions can indeed be defined for each typology that achieve at least 50% site energy reductions, largely through common envelope retrofit measures for all groups and either upgrades to existing HVAC system efficiency or a conversion to mini-split heat pump (MSHP) systems. A scaling analysis suggests that widespread application of the prescriptive deep energy retrofit solutions described herein to the entire Chicagoland residential building stock could save between $400 and $1300 on energy costs per year per home, depending on typology, summing to a total of approximately $280 million per year in savings across all Chicagoland homes.
M.S. in Civil Engineering, July 2014
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- Title
- VOLATILITY FORECASTING USING A DECISION-BASED ATTRIBUTION FRAMEWORK
- Creator
- Li, Tingting
- Date
- 2016, 2016-05
- Description
-
This research develops a portfolio volatility forecasting method for absolute return equity strategies with consideration of managers’...
Show moreThis research develops a portfolio volatility forecasting method for absolute return equity strategies with consideration of managers’ investment skills. Besides the portfolio holdings and prices that are commonly used by existing volatility forecast methodologies, the method proposed in this research takes account of investment skills and their volatility attribution. Investment skills are indicated by decisions of constructing portfolio overtime. Portfolio volatility is attributed to investment decisions through use of decision-based performance attribution model. It is shown that tracking the information contained in the time series of investment decision attribution leads to better volatility forecasts than commonly used forecasting methods which directly use returns and holdings. The forecasting method proposed has advantage of explaining risk forecast in terms of actual investment decisions, and changes to those decisions in real time.
Ph.D. in Management Science, May 2016
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- Title
- The hazards of grain elevators
- Creator
- Cloidt, G. W., Maguire, H. B., Roberts, C. H.
- Date
- 2009, 1907
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/hazardsofgrainel00cloi
Thesis (B.S.)--Armour Institute of Technology
- Title
- CHARACTERIZATION OF A CHROMIUM VANADIUM STEEL IN A HAND TOOL APPLICATION
- Creator
- Cease, Herman
- Date
- 2011-04-23, 2011-05
- Description
-
A chromium vanadium steel is characterized for use in a hex wrench hand tool application. The application justi es the need for a high...
Show moreA chromium vanadium steel is characterized for use in a hex wrench hand tool application. The application justi es the need for a high strength and ductile steel. The standard steel alloy used for hex wrenches is 8650. An alternative lower cost steel alloy, 61B60CrV, is considered for the hex wrench hand tool application. The microstructure achieved is tempered martensite. First martensite is formed to create a high strength but brittle material. Then the martensite is reheated and tem- pered to improve the ductility of the material. Both 8650 and 61B60CrV alloys are thermally processed in the same way to create the tempered martensitic structure. The mechanical properties of the proposed steel is evaluated and compared to that of the standard 8650 steel alloy. The 61B60CrV alloy evaluation includes torsion test- ing, hardness and hardenability measurements, and grain size determination. The 61B60CrV alloy is proven to meet the hex wrench hand tool mechanical requirements with a tempered martensitic microstructure. During Jominy hardness testing of the 61B60CrV alloy, it is determined that the hardness requirements are met for a wide range of microstructures. Samples of the 61B60CrV alloy are austempered for di er- ent durations then quenched to room temperature to create samples with di erent amounts of mixed microstructures of bainite and martensite. A range of mixed mi- crostructures are shown to meet the strength, ductility, and hardness requirements for the hex wrench hand tool application without tempering.
Ph.D. in Material Science and Engineering, May 2011
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- Title
- Heat transmission through condenser tubes
- Creator
- Kimball, R. W., Edson, N. L.
- Date
- 2009, 1906
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heattransmission00kimb
Thesis (B.S.)--Armour Institute of Technology
- Title
- Heat treatment of chrome tungsten high speed tool steels
- Creator
- Perlstein, Harris, Lesser, David Barnes
- Date
- 2009, 1914
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heattreatmentofc00perl
Thesis (B.S.)--Armour Institute of Technology
- Title
- Heat transmission through insulating materials
- Creator
- Gusis, Kasimir P
- Date
- 2009, 1913
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heattransmission00gusi
Thesis (B.S.)--Armour Institute of Technology
- Title
- Heat balance of a Hvid engine
- Creator
- Jones, L. E, Schwachtgen, E. C
- Date
- 2009, 1920
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heatbalanceofhvi00jone
Thesis (B.S.)--Armour Institute of Technology, 1920 B.S. in Mechanical Engineering, 1920
- Title
- Heat resistance of inner arc lamp globes
- Creator
- Enzler, L. J., Hammer, G. O.
- Date
- 2009, 1916
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heatresistanceof00enzl
Thesis (B.S.)--Armour Institute of Technology
- Title
- Heat transmission in condenser coils
- Creator
- Anderson, W. J., Judson, L. D.
- Date
- 2009, 1921
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heattransmission00ande
Thesis (B.S.)--Armour Institute of Technology; Bibliography: leaf 33
- Title
- Heat transmission in a vacuum evaporator
- Creator
- Dormitzer, H. C., Roleson, E. P.
- Date
- 2009, 1912
- Publisher
- Armour Institute of Technology
- Description
-
http://www.archive.org/details/heattransmission00dorm
Thesis (B.S.)--Armour Institute of Technology
- Title
- PEDESTRIAN URBANISM: THE CULTURAL IMPACTS OF WALKABLE COMMUTES AND TRANSIT USE IN CHICAGO (UNITED STATES), PARIS (FRANCE), AND SEOUL (KOREA)
- Creator
- Jeong, Hyesun
- Date
- 2016, 2016-12
- Description
-
In the past several decades, followers of Jane Jacobs have sought to codify her concept of “eyes on the street.” Jacobs used Greenwich Village...
Show moreIn the past several decades, followers of Jane Jacobs have sought to codify her concept of “eyes on the street.” Jacobs used Greenwich Village in New York City to illustrate how her concept could be enhanced through the density and diversity of mixed neighborhoods. This study’s core hypothesis emphasizes density, mixed use, and the cultural pattern of Bohemia on walkability. Mainly based on Jacobs’s argument, this study encourages urban development and neighborhood vitality, and then expands it with walking, bicycling, and public transit use. The study uses a comparative analysis of Chicago (USA), Paris (France), and Seoul (Korea) to examine public policy towards a walkable city in contexts where this policy adjusts to local neighborhoods. The study redefines the concept of Bohemia by numerically codifying and measuring it as a cultural variable together with other urban variables to evaluate their relationship to commuting choice and transit ridership in three cities and their countries. The findings from the statistical analysis show that Bohemia and the presence of the arts are strongly associated with non-auto commuting modes and public transit ridership.
Ph.D. in Architecture, December 2016
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