Search results
(1,881 - 1,900 of 1,938)
Pages
- Title
- A comparison of the methods used in the testing of sugar beets
- Creator
- Young, H., Earl
- Date
- 1902
- Collection
- Electronic Theses & Dissertations
- Title
- A comparison of spring & winter wheat flour as influenced by compressed, dry & liquid yeasts
- Creator
- Hoover, Bessie B.
- Date
- 1915
- Collection
- Electronic Theses & Dissertations
- Title
- A comparison of commercial cooling media for hardening steel
- Creator
- Kean, Roscoe D.
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- A comparison of brake efficiency of induction motors with the efficiency as calculated from the circle diagram
- Creator
- Mead, Alfred B.
- Date
- 1912
- Collection
- Electronic Theses & Dissertations
- Title
- A comparative test of gasoline engines
- Creator
- Gridley, Norman Brown
- Date
- 1913
- Collection
- Electronic Theses & Dissertations
- Title
- A comparative test of certain egg preservatives
- Creator
- Elliott, J. A.
- Date
- 1897
- Collection
- Electronic Theses & Dissertations
- Title
- A comparative study of the grain of our most important cereals
- Creator
- Krentel, Alex C.
- Date
- 1899
- Collection
- Electronic Theses & Dissertations
- Title
- A comparative study between the normal bacterial flora of the udder & that of the genital organs of the cow
- Creator
- Justo, Manuel
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- A comparative analysis of five Michigan cements
- Creator
- Larson, Emil W.
- Date
- 1916
- Collection
- Electronic Theses & Dissertations
- Title
- A comparative analysis of Michigan cements
- Creator
- Godfrey, Donald C.
- Date
- 1924
- Collection
- Electronic Theses & Dissertations
- Title
- A cluster analysis comparison of selected traditional Japanese gardens, classical Chinese gardens and modern Chinese gardens
- Creator
- Chen, Dexin
- Date
- 2018
- Collection
- Electronic Theses & Dissertations
- Description
-
"Cluster analysis is a useful mathematical method that has been used to examine the differences or similarities between gardens (Xu Y. , 2015). This investigation aims to test the differences and similarities between traditional Japanese gardens in Kyoto, the classical Chinese gardens in Suzhou, and the modern Chinese gardens in Xiamen, by comparing the design elements and design principles of the gardens. A hundred and thirty-four variables are selected based upon a literature review and the...
Show more"Cluster analysis is a useful mathematical method that has been used to examine the differences or similarities between gardens (Xu Y. , 2015). This investigation aims to test the differences and similarities between traditional Japanese gardens in Kyoto, the classical Chinese gardens in Suzhou, and the modern Chinese gardens in Xiamen, by comparing the design elements and design principles of the gardens. A hundred and thirty-four variables are selected based upon a literature review and the author's personal experience in Kyoto, where the first seventy-five variables are adopted from earlier garden research by Yiwen Xu (Xu Y. , 2015). After collecting the variables and applying the Principal Component Analysis by the software SAS, a group of corresponding eigenvalues are generated. According to the Principal Component Analysis, the first two principal components covered 63.81 percent of the sample variance. The first and second principal component together divided the gardens into three groups: the first principal component indicated similarities between the traditional Japanese gardens and classical Chinese gardens; the second principal component indicated similarities between traditional Japanese gardens and modern Chinese gardens. Therefore, the final result is a group of three two-dimensional scatter graphs, where each point represents a garden's character on two coordinate axes, and the dimensions are generated from the meaningful eigenvalues."--Page ii.
Show less
- Title
- A climatology of persistent high relative humidity for the lower peninsula of Michigan : implications for health and agriculture
- Creator
- Komoto, Kara
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
-
High values of relative humidity have implications for many processes including human health, animal health and production, and crop disease. Despite its importance, little research has been completed about the persistence of high relative humidity. The goals of this study were to 1) create a baseline climatology of the persistence of high relative humidity (HRH), defined as ≥ 60%, and extremely high relative humidity (EHRH), defined as ≥ 85%, for the Lower Peninsula of Michigan and 2)...
Show moreHigh values of relative humidity have implications for many processes including human health, animal health and production, and crop disease. Despite its importance, little research has been completed about the persistence of high relative humidity. The goals of this study were to 1) create a baseline climatology of the persistence of high relative humidity (HRH), defined as ≥ 60%, and extremely high relative humidity (EHRH), defined as ≥ 85%, for the Lower Peninsula of Michigan and 2) examine, using persistent EHRH events as a surrogate for leaf wetness duration, the frequency of favorable environmental conditions for apple scab and cherry leaf spot, major crop diseases in the state. Results demonstrate that although overall persistent relative humidity events often occur throughout the state, their frequency appears to be decreasing with time. Temporal trends in the frequency of favorable environmental conditions for apple scab and cherry leaf spot vary by location and disease, but there is a general trend toward fewer occurrence of favorable environmental conditions. The climatological analyses provide Michigan stakeholders with essential information for long-term planning and management to mitigate and/or adapt to persistent high relative humidity and to assess future changes in persistent high relative humidity as expected with climate change.
Show less
- Title
- A century of progress in agricultural education
- Creator
- Nye, Reuben L.
- Date
- 1921
- Collection
- Electronic Theses & Dissertations
- Title
- A careful comparison of the three native pines of Michigan
- Creator
- Kedzie, William Roscoe, 1878?-1940
- Date
- 1899
- Collection
- Electronic Theses & Dissertations
- Title
- A bibliography of electrical subjects
- Creator
- Billings, Arthur Witty
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- A bibliography of electrical subjects
- Creator
- Bloemendal, George W.
- Date
- 1916
- Collection
- Electronic Theses & Dissertations
- Title
- A bacteriological study of the homogenizing process in making ice cream
- Creator
- Fabian, Frederick William, 1888-1963
- Date
- 1924
- Collection
- Electronic Theses & Dissertations
- Title
- A SURFACE WATER δ18O BASELINE FOR ARCHAEOLOGICAL STUDIES OF SEASONALITY AND MOBILITY IN THE MAJES VALLEY AND PUCUNCHO BASIN OF SOUTHERN PERU
- Creator
- Milton, Emily Beatrice Peterson
- Date
- 2020
- Collection
- Electronic Theses & Dissertations
- Description
-
Oxygen isotopes in archaeological human and animal teeth provide a potential means to study past migration. In this thesis I evaluate oxygen isotopes as a way to measure highland site occupation seasonality and human movement between elevation zones in the Central Andes. I focus on two questions: 1) Do surface water δ18O values vary predictably with altitude? and 2) Do surface water δ18O values reliably record the wet and dry season? Using water samples collected from the Majes Valley and...
Show moreOxygen isotopes in archaeological human and animal teeth provide a potential means to study past migration. In this thesis I evaluate oxygen isotopes as a way to measure highland site occupation seasonality and human movement between elevation zones in the Central Andes. I focus on two questions: 1) Do surface water δ18O values vary predictably with altitude? and 2) Do surface water δ18O values reliably record the wet and dry season? Using water samples collected from the Majes Valley and Pucuncho Basin of southern Peru, I establish the seasonal and spatial distribution of δ18O. The final dataset represents 98 water samples collected during wet and dry seasons between 2018-2019, from elevations 36 to 4938 meters above sea level. Surface water δ18O and δD values in the study area are consistent with regional and global meteoric waters. Individual water bodies demonstrate relatively higher δ18O values during the dry season and lower δ18O values in the wet season, matching predictions. Lowland and highland surface waters demonstrate overlapping ranges of δ18O, making it impossible to predict the values of surface waters based on elevation alone. Rather, local δ18O appears to reflect evaporative processes influenced by stream order, catchment size, and the geographic position of a waterbody within the watershed. These data suggest oxygen isotopes are not independently suited to resolve questions of human mobility between elevation zones in the western Andes. Further testing is needed to understand the local seasonal and inter-zonal isotopic ecology.
Show less
- Title
- A STUDY ON FLUID-STRUCTURE INTERACTION OF SWIMMING BEAM USING IMMERSED BOUNDARY- LATTICE BOLTZMANN METHOD
- Creator
- Rahman, Md Towhidur
- Date
- 2021
- Collection
- Electronic Theses & Dissertations
- Description
-
Fluid-structure interaction (FSI) study is of great importance to understand the hydrodynamic coupling of biological swimmers in surrounding environmental domain. Multiple numerical and experimental studies have taken place to capture the behavioral pattern from the environment, explore the physical phenomena and comprehension of dynamics to make contribution in real life applications. In this study, an immersed boundary-lattice Boltzmann method (IB-LBM) for fluid-structure interaction...
Show moreFluid-structure interaction (FSI) study is of great importance to understand the hydrodynamic coupling of biological swimmers in surrounding environmental domain. Multiple numerical and experimental studies have taken place to capture the behavioral pattern from the environment, explore the physical phenomena and comprehension of dynamics to make contribution in real life applications. In this study, an immersed boundary-lattice Boltzmann method (IB-LBM) for fluid-structure interaction problems is presented. The impact of solid structure on to the surrounding fluid domain is dealt with by immersed boundary method (IBM), where the structure is assumed to be immersed into surrounding fluid and the effect of the immersed boundary are considered by exertion of Lagrangian force onto the surrounding fluid grid points as body force. The flow dynamics is determined by solving discrete lattice Boltzmann equation of a single relaxation time model. The structural dynamics are solved by the finite difference method. For solving the structural dynamics, inextensibility condition was applied. A staggered grid is used in the Lagrangian coordinate system, where tension force is defined on the interfaces (half-grids) and other variables are defined on the nodes. Tension force is calculated at the intermediate steps and used as inextensibility constraint to obtain filament position at the next time step. In the present study, a detailed derivation and corresponding discretization is done for multiple free-swimming cases for a thin flexible filament. The thin flexible filament is actuated by imposing oscillatory heaving and pitching motion at the leading edge with prescribed control parameters. The flow physics of the system is investigated and pressure on the surfaces of the flexible filament is obtained. The results obtained in this study shows consistency with previous publications. The presented computational modelling may be used in future with multiple obstacles in the domain, to investigate the surface pressure variation of the swimming flexible filament and generated data sets may contribute to optimization of control mechanism of the swimmer.
Show less
- Title
- A STUDY OF MARGINALIZED NEWS PUBLICATION COMMENTERS AND THEIR MOTIVATIONS AND PERCEPTIONS OF LGBTQIA+ NEWS FORUMS
- Creator
- Kim, Soojeong
- Date
- 2022
- Collection
- Electronic Theses & Dissertations
- Description
-
The majority of news comment studies focus on elite news publications such as The New York Times. These studies typically arrive at one of two conclusions: (a) news comment forums are uncivil spaces and (b) White men dominate the conversation spaces on news websites. Yet we know little about how marginalized news commenters on alternative news publications’ online comment forums perceive news spaces and participate in them. Therefore, 22 commenters active in commenting on marginalized (i.e.,...
Show moreThe majority of news comment studies focus on elite news publications such as The New York Times. These studies typically arrive at one of two conclusions: (a) news comment forums are uncivil spaces and (b) White men dominate the conversation spaces on news websites. Yet we know little about how marginalized news commenters on alternative news publications’ online comment forums perceive news spaces and participate in them. Therefore, 22 commenters active in commenting on marginalized (i.e., LGBTQIA+) publications were interviewed to investigate news commenters’ perceptions and motivations. The Social Identity and Bounded Generalized Reciprocity theoretical frameworks suggest these news comment forums should be perceived as safer and more civil spaces due to their homogenous nature. Social Identity Theory suggests that commenters should behave in a more community-oriented way because of in-group favoritism, while Bounded Generalized suggests individuals’ commenting motivations might be driven by the reciprocal expectation that in-group members will positively reciprocate their comments and support their reputational standing. The interview results rooted in the SIT and BGR theoretical lenses provided support for those commenting motivations: (1) perceived similarity, (2) reciprocity, and (3) reputation acknowledgment, which led them to perceive that interactions are civil and safe on LGBTQIA+ news forums.
Show less