171 research outputs found
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Cyborg Liberation: Donna Haraway's Cyborg Feminism as an Emancipatory Model of Identity
Donna Haraway’s concept of the cyborg is a radical archetype for emancipatory self-construction that models conscious reshaping of socially imposed identities. The cyborg represents the plasticity of our socially constructed identities: our ability to transcend the limits of prefabricated identities and overwrite oppressive, socially imposed roles. Understanding social construction through this lens gives social workers and clients the conceptual tools to deconstruct rigid identities—particularly those of gender identity—imposed by society. These identities are the subject of active political contestation; they are the product of economic, social, and cultural relations and institutions. The concept of the cyborg provides an emancipatory model that denaturalizes and destabilizes rigid essentialist binaries and instead recognizes the chimeric multiplicity of the individual.
Keywords: cyborg, social construction, identity, gender, feminis
A Systematic Literature Review of Drone Utility in Railway Condition Monitoring
Raj Bridgelall is the program director for the Upper Great Plains Transportation Institute (UGPTI) Center for Surface Mobility Applications & Real-time Simulation environments (SMARTSeSM).Drones have recently become a new tool in railway inspection and monitoring (RIM) worldwide, but there is still a lack of information about the specific benefits and costs. This study conducts a systematic literature review (SLR) of the applications, opportunities, and challenges of using drones for RIM. The SLR technique yielded 47 articles filtered from 7,900 publications from 2014 to 2022. The SLR found that key motivations for using drones in RIM are to reduce costs, improve safety, save time, improve mobility, increase flexibility, and enhance reliability. Nearly all the applications fit into the categories of defect identification, situation assessment, rail network mapping, infrastructure asset monitoring, track condition monitoring, and obstruction detection. The authors assessed the open technical, safety, and regulatory challenges. The authors also contributed a cost analysis framework, identified factors that affect drone performance in RIM, and offered implications for new theories, management, and impacts to society.The authors conducted this work with support from North Dakota State University and the Mountain-Plains Consortium, a University Transportation Center funded by the U.S. Department of Transportation.https://www.ugpti.org/about/staff/viewbio.php?id=7
Hyperspectral Applications in the Global Transportation Infrastructure
Raj Bridgelall is the program director for the Upper Great Plains Transportation Institute (UGPTI) Center for Surface Mobility Applications & Real-time Simulation environments (SMARTSeSM).Hyperspectral remote sensing is an emerging field with
potential applications in the observation, management,
and maintenance of the global transportation
infrastructure. This study introduces a general analytical
framework to link transportation systems analysis and
hyperspectral analysis. The authors introduce a range of
applications that would benefit from the capabilities of
hyperspectral remote sensing. They selected three critical
but unrelated applications and identified both the spatial
and spectral information of their key operational
characteristics to demonstrate the hyperspectral utility.
The specific scenario studies exemplifies the general
approach of utilizing the outputs of hyperspectral analysis
to improve models that practitioners currently use to
analyze a variety of transportation problems including
roadway congestion forecasting, railway condition
monitoring, and pipeline risk management.Mountain Plains Consortium (MPC)https://www.ugpti.org/about/staff/viewbio.php?id=7
Introducing an Efficiency Index to Evaluate eVTOL Designs
Raj Bridgelall is the program director for the Upper Great Plains Transportation Institute (UGPTI) Center for Surface Mobility Applications & Real-time Simulation environments (SMARTSeSM).The evolution of electric vertical takeoff and landing (eVTOL) aircraft as part of the Advanced Air Mobility initiative will affect our society and the environment in fundamental ways. Technological forecasting suggests that commercial services are fast emerging to transform urban and regional air mobility for people and cargo. However, the complexities of diverse design choices pose a challenge for potential adopters or service providers because there are no objective and simple means to compare designs based on the available set of performance specifications. This analysis defines an aeronautically informed propulsion efficiency index (PEX) to compare the performance of eVTOL designs. Range, payload ratio, and aspect ratio are the minimum set of independent parameters needed to compute a PEX that can distinguish among eVTOL designs. The distribution of the PEX and the range are lognormal in the design space. There is no association between PEX values and the mainstream eVTOL architecture types or the aircraft weight class. A multilinear regression showed that the three independent parameters explained more than 90% of the PEX distribution in the present design space.https://www.ugpti.org/about/staff/viewbio.php?id=7
North Dakota Strategic Freight Analysis: Item IV. Heavier Loading Rail Cars
North Dakota's grain producers rely on an efficient rail system to move their products to export and domestic markets. A recent shift to larger grain hopper cars may threaten the viability of the state's light-density branch line network. This study simulates the impacts of handling larger rail cars on many types of rail lines, model the decision process used by railroads in deciding whether to upgrade such lines or abandon them, estimates the costs of upgrading rail lines that are unlikely to be upgraded, and estimates generalized highway impacts that could result from the abandonment of non-upgraded lines
Radio-frequency discharges in Oxygen. Part 1: Modeling
In this series of three papers we present results from a combined
experimental and theoretical effort to quantitatively describe capacitively
coupled radio-frequency discharges in oxygen. The particle-in-cell Monte-Carlo
model on which the theoretical description is based will be described in the
present paper. It treats space charge fields and transport processes on an
equal footing with the most important plasma-chemical reactions. For given
external voltage and pressure, the model determines the electric potential
within the discharge and the distribution functions for electrons, negatively
charged atomic oxygen, and positively charged molecular oxygen. Previously used
scattering and reaction cross section data are critically assessed and in some
cases modified. To validate our model, we compare the densities in the bulk of
the discharge with experimental data and find good agreement, indicating that
essential aspects of an oxygen discharge are captured.Comment: 11 pages, 10 figure
North Dakota Strategic Freight Analysis Agricultural Sector: Summary Report
In an attempt to provide some of the information that will enable North Dakota firms and policymakers to make better decisions, this project addressed four transportation issues, which are critical to the future of the state's agricultural sector: (1) the impact of 110-car shuttle trains on the marketing of grains, (2) the impact of heavier cars on light-density rail lines, (3) the changing trend in the use of truck/rail container intermodal transportation for marketing North Dakota products; and (4) the role played by logistics factors in determining the optimal location of value-added facilities
CSR and related terms in SME owner-managers' mental models in six European countries: national context matters
As a contribution to the emerging field of corporate social responsibility (CSR) cognition, this article reports on the findings of an exploratory study that compares SME owner–managers’ mental models with regard to CSR and related concepts across six European countries (Belgium, Italy, Norway, France, UK, Spain). Utilising Repertory Grid Technique, we found that the SME owner–managers’ mental models show a few commonalities as well as a number of differences across the different country samples. We interpret those differences by linking individual cognition to macro-environmental variables, such as language, national traditions and dissemination mechanisms. The results of our exploratory study show that nationality matters but that classifications of countries as found in the comparative capitalism literature do not exactly mirror national differences in CSR cognition and that these classifications need further differentiation. The findings from our study raise questions on the universality of cognition of academic management concepts and warn that promotion of responsible business practice should not rely on the use of unmediated US American management terminology
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