965 research outputs found
Cycling Through the Pandemic : Tactical Urbanism and the Implementation of Pop-Up Bike Lanes in the Time of COVID-19
Provides an international overview on how tactical urbanism was implemented to give more space to cycling
Demonstrates the conceptual framework surrounding tactical urbanism and how it plays out theoretically
Proposes new methodological insights to understand the effects of tactical urbanism intervention
Design of autonomous robotic system for removal of porcupine crab spines
Among various types of crabs, the porcupine crab is recognized as a highly potential
crab meat resource near the off-shore northwest Atlantic ocean. However, their
long, sharp spines make it difficult to be manually handled. Despite the fact that
automation technology is widely employed in the commercial seafood processing industry,
manual processing methods still dominate in todayâs crab processing, which
causes low production rates and high manufacturing costs.
This thesis proposes a novel robot-based porcupine crab spine removal method.
Based on the 2D image and 3D point cloud data captured by the Microsoft Azure
Kinect 3D RGB-D camera, the crabâs 3D point cloud model can be reconstructed
by using the proposed point cloud processing method. After that, the novel point
cloud slicing method and the 2D image and 3D point cloud combination methods are
proposed to generate the robot spine removal trajectory.
The 3D model of the crab with the actual dimension, robot working cell, and endeffector
are well established in Solidworks [1] and imported into the Robot Operating
System (ROS) [2] simulation environment for methodology validation and design optimization.
The simulation results show that both the point cloud slicing method and
the 2D and 3D combination methods can generate a smooth and feasible trajectory.
Moreover, compared with the point cloud slicing method, the 2D and 3D combination
method is more precise and efficient, which has been validated in the real experiment
environment.
The automated experiment platform, featuring a 3D-printed end-effector and crab
model, has been successfully set up. Results from the experiments indicate that the
crab model can be accurately reconstructed, and the central line equations of each
spine were calculated to generate a spine removal trajectory. Upon execution with
a real robot arm, all spines were removed successfully. This thesis demonstrates the
proposed methodâs capability to achieve expected results and its potential for application
in various manufacturing processes such as painting, polishing, and deburring
for parts of different shapes and materials
Transition 2.0: Re-establishing Constitutional Democracy in EU Member States
The central question of Transition 2.0 is this: what (and how) may a new government do to re-establish constitutional democracy, as well as repair membership within the European Union, without breaching the European rule of law? This volume demonstrates that EU law and international commitments impose constraints but also offer tools and assistance for facilitating the way back after rule of law and democratic backsliding. The various contributions explore the constitutional, legal, and social framework of 'Transition 2.0'.Dieser Band zeigt, dass das EU-Recht und die internationalen Verpflichtungen zwar ZwĂ€nge auferlegen, aber auch Instrumente und Hilfestellungen bieten, um den Weg zurĂŒck in die EuropĂ€ische Union nach Rechtsstaatlichkeitsdefiziten und demokratischen RĂŒckschritten zu erleichtern. Die verschiedenen BeitrĂ€ge untersuchen den verfassungsrechtlichen, rechtlichen und sozialen Rahmen des "Ăbergangs 2.0"
Meta-Science:Towards a Science of Meaning and Complex Solutions
Science has lost its ethical imperatives as it moved away from a science of ought to a science of is. Subsequently, it might have answers for how we can address global challenges, such as climate change and poverty, but not why we should. This supposedly neutral stance leaves it to politics and religions (in the sense of non-scientific fields of social engagement) to fill in the values. The problem is that through this concession, science implicitly acknowledges that it is not of universal relevance.Objective knowledge, as Karl Popper calls for, might be less easily attainable in the world of ideas and within the confines of scientific idealism. However, if ideas, values and meaning have equal claim to be drivers of change in the sense of causation, aspiring to identify objective knowledge about the world of ideas and of meaning is necessary. If the sciences and disciplines aim to give objectively valid reasons for our actions (and for how to address global challenges), we need to elevate the study of meaning beyond the cultural, disciplinary and ideational delineations. We need to come to a meta understanding of values and meaning equal to objective knowledge about the material world. But differently than in the material world this meta understanding needs to incorporate individual and subjective experiences as cornerstones of objectivity on a meta-level.We need a science of meaning; one that can scientifically answer Kantâs third question of âwhat may we hope forâ
Urban Space, Genre and Subjectivity in African and Latin American Cinema
This project studies twelve African and Latin American films from a range of eras and countries, with an emphasis on their treatment of urban space, their manipulation of genre elements, and their approaches to character subjectivity. The analysis draws on major works of urban theory by Henri Lefebvre, Manuel Castells, David Harvey, Jane Jacobs, and others in order to investigate the relationship between cinema and the urban experience. As the films in the study are mostly set in cities that are not discussed by the theorists, the analysis entails testing their theories against the realities of these other settings, as depicted in the films. Furthermore, as these films depict places and people not usually featured in commercial cinema, this project will emphasize ways in which the films challenge dominant patterns of cinematic representation with regard to African and Latin American people, places and culture. Finally, this project will analyze important structural and stylistic nuances of each film in order to contribute to existing discussions of African and Latin American film and global film in general
Meta-Science:Towards a Science of Meaning and Complex Solutions
Science has lost its ethical imperatives as it moved away from a science of ought to a science of is. Subsequently, it might have answers for how we can address global challenges, such as climate change and poverty, but not why we should. This supposedly neutral stance leaves it to politics and religions (in the sense of non-scientific fields of social engagement) to fill in the values. The problem is that through this concession, science implicitly acknowledges that it is not of universal relevance.Objective knowledge, as Karl Popper calls for, might be less easily attainable in the world of ideas and within the confines of scientific idealism. However, if ideas, values and meaning have equal claim to be drivers of change in the sense of causation, aspiring to identify objective knowledge about the world of ideas and of meaning is necessary. If the sciences and disciplines aim to give objectively valid reasons for our actions (and for how to address global challenges), we need to elevate the study of meaning beyond the cultural, disciplinary and ideational delineations. We need to come to a meta understanding of values and meaning equal to objective knowledge about the material world. But differently than in the material world this meta understanding needs to incorporate individual and subjective experiences as cornerstones of objectivity on a meta-level.We need a science of meaning; one that can scientifically answer Kantâs third question of âwhat may we hope forâ
Physical Accessibility and Historic Preservation in Historic House Museums of the Southeast
Museums are a public good, as they provide educational recreation and preserve cultural history, and so it is crucial that they are physically accessible to as many visitors as possible. The aim of this study was to understand what architectural features of historic house museums are the least accessible and what has been done to ameliorate these challenges. The survey used in the study was developed using the guidelines for making historic buildings accessible as described in the Americans with Disabilities Act and the Uniform Federal Accessibility Standards. It was distributed by email to representatives of 220 historic sites, of which 79 responded. The results suggested that the number of visitors to a site is essentially irrelevant to what level of accessibility the historic house possesses. A siteâs budget often, but not always, influences the accessibility measures available for visitors. Many museum administrators describe barriers to increased accessibility in the form of limitations imposed by regulatory bodies and the risk of damaging the housesâ historical integrity. Even so, building stewards are generally enthusiastic about expanding accessibility and want to find ways to implement measures compatible with their buildingsâ historic fabric
Meta-Science:Towards a Science of Meaning and Complex Solutions
Science has lost its ethical imperatives as it moved away from a science of ought to a science of is. Subsequently, it might have answers for how we can address global challenges, such as climate change and poverty, but not why we should. This supposedly neutral stance leaves it to politics and religions (in the sense of non-scientific fields of social engagement) to fill in the values. The problem is that through this concession, science implicitly acknowledges that it is not of universal relevance.Objective knowledge, as Karl Popper calls for, might be less easily attainable in the world of ideas and within the confines of scientific idealism. However, if ideas, values and meaning have equal claim to be drivers of change in the sense of causation, aspiring to identify objective knowledge about the world of ideas and of meaning is necessary. If the sciences and disciplines aim to give objectively valid reasons for our actions (and for how to address global challenges), we need to elevate the study of meaning beyond the cultural, disciplinary and ideational delineations. We need to come to a meta understanding of values and meaning equal to objective knowledge about the material world. But differently than in the material world this meta understanding needs to incorporate individual and subjective experiences as cornerstones of objectivity on a meta-level.We need a science of meaning; one that can scientifically answer Kantâs third question of âwhat may we hope forâ
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