Search results for: Dean Anderson

Items from 1 to 12 out of 12 results

article

A cloud‐based solution for trustless indigenous data sovereignty: Protecting Māori biodiversity management data in Aotearoa New Zealand

Pankajeshwara Sharma, Michael Martin, David Swanlund, Cecilia Latham, more

Transactions in GIS > 28 > 4 > 836 - 857

Indigenous peoples should be able to govern data about themselves, their territories, resources, and ways of life, collected by themselves or others. However, the progressive use of cloud computing for the geoweb raises data security and privacy concerns. We propose a complete and trustless approach for indigenous geospatial data sovereignty on the cloud by furnishing security functions at the core—the...

article

Pest control at a regional scale: Identifying key criteria using a spatially explicit, agent‐based model

Audrey Lustig, Alex James, Dean Anderson, Micheal Plank, more

Journal of Applied Ecology > 56 > 7 > 1515 - 1527

Invasive mammals are a major threat to biodiversity. Understanding how their distributions and abundance could be affected by different temporal and spatial control strategies is fundamental for planning effective management programs. We developed a spatially explicit, agent‐based model to test the impacts of different spatiotemporal management strategies on a pest population. As a case study,...

article

Developing a Robust Disaster Response Robot: CHIMP and the Robotics Challenge

G. Clark Haynes, David Stager, Anthony Stentz, J. Michael Vande Weghe, more

Journal of Field Robotics > 34 > 2 > 281 - 304

CHIMP, the CMU Highly Intelligent Mobile Platform, is a humanoid robot capable of executing complex tasks in dangerous, degraded, human‐engineered environments, such as those found in disaster response scenarios. CHIMP is uniquely designed for mobile manipulation in challenging environments, as the robot performs manipulation tasks using an upright posture, yet it uses more stable prostrate postures...

article

Improved surveillance for early detection of a potential invasive species: the alien Rose-ringed parakeet Psittacula krameri in Australia

Miquel Vall-llosera, Andrew P. Woolnough, Dean Anderson, Phillip Cassey

Biological Invasions > 2017 > 19 > 4 > 1273-1284

The Rose-ringed parakeet Psittacula krameri is the most widely introduced parrot in the world, and is an important agricultural pest and competitor with native wildlife. In Australia, it is classified as an ‘extreme threat’, yet captive individuals frequently escape into the wild. The distribution and frequency of incursions are currently unknown, as are the potential impacts of the species in Australia...

chapter

Data-Driven Identification of Group Dynamics for Motion Prediction and Control

Mac Schwager, Dean Anderson, Daniela Rus

Springer Tracts in Advanced Robotics > Field and Service Robotics > Learning and Scene Estimation > 391-400

Summary A decentralized model structure for representing groups of coupled dynamic agents is proposed, and the Least Squares method is used for fitting model parameters based on observed position data. The physically motivated, difference equation model combines effects from agent dynamics, interactions between agents, and interactions between each agent and its environment. The technique is implemented...

chapter

Coordinated Control and Range Imaging for Mobile Manipulation

Dean Anderson, Thomas M. Howard, David Apfelbaum, Herman Herman, more

Springer Tracts in Advanced Robotics > Experimental Robotics > Session 12: Manipulation > 547-556

Introduction Mobile manipulators currently deployed for explosive ordinance disposal are typically controlled via crude forms of teleoperation.Manipulator joints are actuated individually in joint space, making precise motions in state space difficult. Scene understanding is limited, as monocular cameras provide little (if any) depth information. Furthermore, the operator must manually coordinate...

article

Release of constraints on nest-site selection in burrow-nesting petrels following invasive rat eradication

Rachel T. Buxton, Dean Anderson, Henrik Moller, Christopher J. Jones, more

Biological Invasions > 2015 > 17 > 5 > 1453-1470

Introduced mammals have been eradicated from many offshore islands around the world, removing predation pressure from burrow-nesting seabirds and other affected wildlife. Nest-site selection in procellariiform seabirds is mediated by nesting habitat characteristics and social information, although it is unclear if, or how, nest-site selection will affect post-eradication colony growth. Using...

article

Conscious change leadership: Achieving breakthrough results

Dean Anderson, Linda Ackerman Anderson

Leader to Leader > 2011 > 62 > 51 - 59

To drive organizational change that is “wildly successful,” leaders should look beyond change management and project management, the authors say. They explain why “conscious change leadership” is the answer. They guide readers to understanding change within three focus areas: content, people, and process. Furthermore, there are three types of change facing today's leaders: developmental, transitional,...

chapter

Polymer film capacitors with high dielectric constant, high capacitance density, and high energy density

Shihai Zhang, Chen Zou, Xin Zhou, Dean Anderson, more

2010 IEEE International Power Modulator and High Voltage Conference > 221 - 224

2010 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

A series of high dielectric constant polymers have been developed with K from 10 to over 50. The high-K polymers have high dielectric breakdown strength above 700 V/μm and high energy density up to 27 J/cm³ in lab-scale small sample test. As thermoplastic semicrystalline polymers similar to polypropylene, these high-K polymers can be processed into thin capacitor film using melt-extrusion and biaxial...

article

Piezoelectric materials for high power, high temperature applications

Shujun Zhang, Ru Xia, Laurent Lebrun, Dean Anderson, more

Materials Letters > 2005 > 59 > 27 > 3471-3475

High intensity focused ultrasound (HIFU) and ultra sound-guided HIFU therapy require probes capable of both high quality diagnostic imaging and radiating high acoustic power into tissue. Piezoelectric materials with high mechanical quality factor Q, large electromechanical coupling (k _ij ) and high dielectric constant K ^T are desired to meet the demands of advanced high power electromechanical...

article

Extracts of Flourensia cernua Reduce Consumption of Alfalfa Pellets by Sheep

Rick Estell, Mario Tellez, Ed Fredrickson, Dean Anderson, more

Journal of Chemical Ecology > 2001 > 27 > 11 > 2275-2285

Effects of three extracts (hexanes, ether, and ethanol) from tarbush (Flourensia cernua) on intake of alfalfa pellets by lambs were examined. Forty-five ewe lambs were fed one of five treatments for five days (randomized complete block, three lambs per block on each treatment). Treatments were alfalfa pellets (CON) or alfalfa pellets plus ethanol carrier (CAR), hexanes extract (HEX), ether extract...

article

Spatial Variability of Turbulent Fluxes in the Roughness Sublayer of an Even-Aged Pine Forest

Gabriel Katul, Cheng-I Hsieh, David Bowling, Kenneth Clark, more

Boundary-Layer Meteorology > 1999 > 93 > 1 > 1-28

The spatial variability of turbulent flow statistics in the roughness sublayer (RSL) of a uniform even-aged 14 m (= h) tall loblolly pine forest was investigated experimentally. Using seven existing walkup towers at this stand, high frequency velocity, temperature, water vapour and carbon dioxide concentrations were measured at 15.5 m above the ground surface from October 6 to 10 in 1997. These seven...

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