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-
- Description:
- Acoustic emission (AE) testing was deployed on details of two large steel Interstate Highway bridges: one cantilever through-truss and one trapezoidal box girder bridge. Quantitative measurements of activity levels at known and suspected crack locations were made by monitoring AE under normal service loads (e.g., live traffic and wind). AE...
- Keyword:
- Acoustic emission testing
- Creator:
- Kosnik, D. E. , Hopwood, T., and Corr, D. J.
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/21/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2010
- Resource Type:
- Research Paper
-
- Description:
- Scour is by far the primary cause of bridge failures in the United States. Scour and other hydraulic effects are particularly threatening because the deterioration is often invisible, hidden beneath turbid water. Many scour monitoring methods attempt to measure the development of scour pockets themselves. However, this is difficult due...
- Keyword:
- Scours at bridges and Tiltmeter
- Creator:
- Kosnik, David and Ng, Steve
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/21/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2010-02-17
- Resource Type:
- Research Paper
-
- Description:
- Acoustic emission (AE) testing was used to identify the source of audible “bangs” generated during opening and closing of a large, double-leaf rolling-lift bascule bridge. The data were analyzed using a combination of well-established AE techniques, including first hit analysis (FHA), planar location analysis, and linear location analysis. The FHA...
- Keyword:
- Acoustic emission testing
- Creator:
- Matthew P. Kotowsky , David E. Kosnik, David Corr, and David W. Prine
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/21/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2009-06-10
- Resource Type:
- Report
-
- Description:
- Trees in urban areas offer ecosystem services like carbon sequestration, storm water attenuation, reduction of energy used in buildings and wildlife habitat. Cities invest substantial funds and resources to maintain a healthy urban forest, and much research has been done to improve its resiliency and sustainability. Studies have been done...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Darling, Lindsay E.
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 02/04/2019
- Date Created:
- 2013-09-04
- Resource Type:
- Masters Thesis
- Alternate Identifier:
- http://hdl.handle.net.DL/repo-pbmt-darling
-
- Description:
- This report shows that compensation plans have not met the needs of victims of nuclear disasters for three primary reasons: compensation plans have been devised by unelected officials and without full public knowledge or participation, governments have often capped the liability of the owners of nuclear facilities, which distorts cost-benefit...
- Keyword:
- nuclear disaster relief, chernobyl, fukushima, nuclear power, and nuclear accidents
- Subject:
- Nuclear energy--Government policy and Nuclear power plants
- Creator:
- Miyazaki, Hirokazu
- Owner:
- Chris Diaz
- Publisher:
- Northwestern University Libraries
- Date Uploaded:
- 02/23/2021
- Date Modified:
- 03/09/2021
- Date Created:
- 2021-03-09
- Resource Type:
- Book
- Alternate Identifier:
- 978-1-954984-00-4 and 978-1-954984-01-1
-
- Description:
- This book discusses how cities that have developed through the successive stages of capitalism should transform themselves when adapting to the conditions of the contemporary global age. Since modern times, the capitalist economy has largely defined society, politics, and environment—this has casued the collapse of communities, the crisis of democracy,...
- Keyword:
- smart cities
- Creator:
- Anttiroiko, Ari-Veikko, Yoshida, Tomohiko, and Mori, Hiroyuki
- Owner:
- Chris Diaz
- Publisher:
- Northwestern University Libraries
- Date Uploaded:
- 06/29/2022
- Date Modified:
- 06/29/2022
- Date Created:
- 2022
- Resource Type:
- Book
- Alternate Identifier:
- ISBN 978-1-954984-02-8
-
- Description:
- The textbook proceeds with an introduction to theory and concept building, moves to an explanation of causal inference (how do we 'know' whether something is causal?), and then provides a quick introduction to data and hypothesis testing. Following that, each chapter is devoted to a particular research method used within...
- Keyword:
- textbook, open educational resources, and introduction to political science
- Subject:
- Quantitative research, Political science, and Open educational resources
- Creator:
- Clipperton, Jean
- Contributor:
- Ochoa, Erin, Ruan, Zhihang, Lee, John, Manzi, Pilar, Zimmerman, John, Kwon, Irene, Gubitz, Sam, Noor, Salih, and Weylandt, Max
- Owner:
- Chris Diaz
- Publisher:
- Northwestern University Libraries
- Date Uploaded:
- 01/24/2022
- Date Modified:
- 08/17/2022
- Date Created:
- 2022
- Resource Type:
- Book
- Alternate Identifier:
- ISBN 978-1-954984-05-9
-
- Description:
- Contemporary Ethiopian is, without question, facing enormous challenges. At the core of these challenges lay a state-building process major constituencies and elite groups were either alienated from, forced to acquiesce to, or coopted into. Unable to derive political legitimacy from democratic participation, successive governments largely relied on coercion and neopatrimonialism,...
- Keyword:
- citizenship, managing diversity, constitutional law, law, states' rights, Ethiopia, political science, consociationalism, federalism, democratization, constitutionalism, intersectionality, and ethnic federalism
- Subject:
- Law and Political Science
- Creator:
- Dr. Juweria Ali, Loid Taye, Dr. Solomon Negussie, Melhik A. Bekele, Fowsia Abdulkadir, Dr. Christophe Van der Beken, Rediet Baye Ayalew, Professor Thomas Geraghty, Prof. Dr. Adeno Addis, Teguadda Alebachew, Dr. Abchu Wassihun, Dr. Mulugeta Mengist Ayalew, Prof. Dr. Assefa Fiseha, Dr. Mizanie Abate Tadesse, Dr. Getachew Assefa Wodemariam, Dr. Semir Yusuf, Abduletif Kedir Idris, Dr. Aberra Degefa, Kokebe Wolde Jemaneh, Dr. Kalkidan Negash Obse, Dr. Abadir M. Ibrahim, Dr. Zemalek Ayitenew Ayele, Dr. Yonatan Tesfaye Fessha, Dr. Semeneh Ayalew Asfaw, Dr. Abdi Jibril, Dr. Sossina M. Haile, Dr. Tigist Shewarega Hussen, Dr. Berihun Adugna Gebeye, Dr. Adem K. Abebe, Dr. Mohammed Dejan Assen, Dr. Zelalem Mogessie Teferra, Gossaye Ayele, Dr. Yitayew Alemayehu, Dr. Shimelis Mulugeta Kene, and Dr. Sisay Alemahu Yeshanew
- Contributor:
- Mezgebu Tesema (cover art) and May Malone (cover design)
- Owner:
- Basia Kapolka
- Publisher:
- Northwestern University Libraries and Northwestern University Roberta Buffett Institute for Global Affairs
- Language:
- English
- Date Uploaded:
- 12/15/2022
- Date Modified:
- 01/03/2023
- Date Created:
- 2022-12-22
- Resource Type:
- Book
- Alternate Identifier:
- ISBN 978-1-954984-06-6
-
- Description:
- The Moraceae family includes several species producing edible fruits, including mulberry, fig, breadnut, and osage-orange.
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Witherup, Colby
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2013-05-13
- Resource Type:
- Masters Thesis
-
- Description:
- Past efforts to reintroduce the native legume species Desmodium glutinosum and Lespedeza violacea into restored woodlands have not produced self-sustaining populations. Proposed factors preventing reintroduction include herbivory, persistent environmental effects of invasive shrubs, poor performance of commercial Rhizobium inoculants, and competitive displacement associated with elevated nitrogen availability. To address these...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Tsang, Byron Yan
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2012-11-27
- Resource Type:
- Masters Thesis
-
- Description:
- Pollination is a reproductive necessity in the majority of the world’s flowering plants. Pollen limitation threatens plant reproduction, particularly in self-incompatible species. Although assessing pollen limitation usually requires pollen supplementation experiments, alternative methods support the findings of traditional pollen supplementation experiments.
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Tonietto, Rebecca K.
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2009-04-28
- Resource Type:
- Masters Thesis
-
- Description:
- Pollination is a reproductive necessity in the majority of the world’s flowering plants. Pollen limitation threatens plant reproduction, particularly in self-incompatible species. Although assessing pollen limitation usually requires pollen supplementation experiments, alternative methods support the findings of traditional pollen supplementation experiments.
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Taira, Karen Elizabeth
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2013-10-29
- Resource Type:
- Masters Thesis
-
- Description:
- Two experiments were conducted to assess the germination, growth, and survival of Cirsium pitcheri Torr. ex Eaton T & G in the Chicagoland region. The first experiment involved growing seeds from various native populations to determine tolerance for the current Chicagoland climate. The second experiment tested three of the populations...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Staehlin, Benjamin
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2009-04-29
- Resource Type:
- Masters Thesis
-
- Description:
- Habitat fragmentation can alter the conditions of natural plant populations, introducing novel selective pressures. The ability of a population to respond to environmental change can be inferred by assessing the population’s genetic diversity and the heritability of traits thought to be under selection.
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Rivera, Ricardo
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2013-05-13
- Resource Type:
- Masters Thesis
-
- Description:
- Identifying factors that shape the spatial distribution of genetic variation within and among natural populations is crucial to understanding many population> and landscape>level processes. In this study, I characterize the strength and extent of spatial genetic structure in Oenothera harringtonii (Onagraceae), an insect>pollinated, gravity>dispersed herb endemic to the grasslands of...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Rhodes, Matthew Kent
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2013-09-26
- Resource Type:
- Masters Thesis
-
- Description:
- Nitrogen (N) deposition can alter belowground microbial communities, especially ectomycorrhizal (ECM) fungi, resulting in a reduced ability of associated trees to access organic nutrients. This study tested whether N addition decreases ECM species richness and shifts ECM species composition across spatial scales in a subtropical slash pine (Pinus elliottii) plantation...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Ning, Chen
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2014-07-17
- Resource Type:
- Masters Thesis
-
- Description:
- The environmental and plant physiological correlates of plant growth and reproductive effort in the locally threatened orchid, Cypripedium candidum Muhl. ex Willd were examined in the context of a conceptual model of demographic and reproductive trade-offs, focusing on three Illinois populations. This study addresses the current status and long-term trends...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Nies, Anne
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2014-05-02
- Resource Type:
- Masters Thesis
-
- Description:
- Current ecological restoration efforts seek to restore a target community, maximize biodiversity or provide habitat for rare species. In practice, restoration ecology is often initiated and sustained without knowledge or reverence to the belowground ecosystem processes, though these processes often subtend the long-term sustainability of aboveground and belowground ecological communities.
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Umek, Lauren G.
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2007-05-15
- Resource Type:
- Masters Thesis
-
- Description:
- Plant-aphid systems provide a valuable opportunity for studying the ecological consequences of land use change for interacting species. The North American tallgrass prairie has undergone severe reduction and fragmentation due to agricultural development. The prairie perennial Echinacea angustifolia, a model system for studying population-level effects of habitat fragmentation, hosts a...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Muller, Katherine
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2013-05-15
- Resource Type:
- Masters Thesis
-
- Description:
- The introduction of non-native pests in general, and invasive plants in particular, has been receiving increasing interest by scientists, environmental groups, and to a certain extent the general public. Deleterious effects from the release of such alien species include threats to the environment, national economies, and even human health. The...
- Keyword:
- plant biology
- Subject:
- plant biology
- Creator:
- Madeja, Glen
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/14/2017
- Date Modified:
- 11/06/2023
- Date Created:
- 2010-05-05
- Resource Type:
- Masters Thesis