Résumé |
Bradford Castalia |
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Home Address |
712 North Seventh Avenue Tucson, Arizona 85705 520-624-6629 Castalia@idaeim.com |
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Work Address |
Department of Planetary
Sciences University of Arizona 1541 East University
Boulevard Tucson, Arizona 85721-0063 520-621-2197 Castalia@Arizona.edu |
Lunar and Planetary Lab Planetary Image Research
Laboratory HiRISE Operations Center Sonett Space Sciences Building,
Room 102C |
Employment |
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12/07 - Present |
Principal Applications
Systems Analyst |
6/98 - 12/07 |
Senior Applications
Systems Analyst Planetary Image Research
Laboratory (PIRL) HiRISE Operations Center
(HiROC) Lunar and Planetary Lab
(LPL) Department of Planetary
Sciences University of Arizona Tucson, Arizona |
Software development |
Lead Ground Data System
software developer for the NASA High Resolution Imaging Science Experiment
(
HiRISE), an instrument on board the Mars Reconnaissance Orbiter
(
MRO) spacecraft,
working with a core group of staff and student programmers in coordination
with the HiROC operations team. Participated in overall GDS data flow and
operations design. Initiated the design and implementation of the central
HiRISE database (MySQL based) until a database administrator could be hired.
Responsible for the design and implementation of the software organization,
management and build framework. Responsible for the design and implementation
of the Java Conductor pipeline processing software used for automated,
distributed database-driven high-throughput procedure management as the basis
for HiRISE observation data products production operations. Designed and
implemented several HiRISE software subsystems including FEIWatchdog:
hands-off, 24x7 remote detection and download of new observation data files;
Observation: C++ classes and applications for access to and management of
HiRISE observation data including the generation of data products for
delivery to the Planetary Data System (PDS); PDS_JP2: C++ classes and
applications for conversion of image files in standard PDS format to the new
PDS/JP2 format (participated in it's specification) using JPEG2000 encoding
to reduce the storage requirements of HiRISE images (up to 80,000 by 150,000
16-bit pixels in three bands) delivered as final data products to PDS and the public.
Negotiated the acquisition, installation and use of ISO standard JPIP
(JPEG2000 Internet Protocol) server technology at HiROC for efficient
internet distribution of HiRISE image data products. Ongoing responsibility
for the development and maintenance of the
PIRL Java Packages,
PIRL++ classes
and other software. |
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2/97 - 3/98 |
Principal Applications
Systems Analyst Terrestrial Biophysics
and Remote Sensing (TBRS) Group Department of Soils,
Water and Environmental Science University of Arizona Tucson, Arizona |
Facility management |
Responsible for the design
and implementation of a strategic development plan for a NASA Science
Computing Facility (SCF) requiring high level, integrated computing services
to meet the intensive resource and functionality demands of the EOS-MODIS
(Earth Observing System - Moderate-resolution Imaging Spectroradiometer)
Project as part of the Mission to Planet Earth. The TBRS SCF was expected to
provide high levels of performance and capacity to process large data sets
and maintain a constant data flow, support a software development environment
for the evaluation of new algorithms and applications, and accommodate
scientific visualization tools that research teams apply to the exploratory
analysis of the data products. Implementation duties extended from needs
assessment, budget management, and product evaluation through vendor
negotiations, purchasing process and equipment installation to hardware and
software maintenance, user training and support and the particulars of
systems administration. |
Software development |
Algorithm software
implementation of certain MODLAND (MODIS Land Group) processing software
including production software for the generation of vegetation indexes from
global land surface imagery data sets. Involvement with the science teams in
researching new algorithms and interactive analysis methods and the
implications for further application areas. |
Systems |
Silicon Graphics
(MIPS/Irix) multiprocessor servers (Origin2000, Challenge-L) and workstations
(Personal Iris through Power Indigo2), PC's (Intel x86/Microsoft Windows 95)
and Apple Macintoshes (PowerPC). Switched ethernet (10BaseT, 100BaseTX)
network. Shared storage devices (multi-volume/multi-controller striped disks;
EOD jukebox, CD, CD-R optical; 8mm and QIC tape). Various printers and modems.
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9/89 - 1/97 |
Senior Applications
Systems Analyst Planetary Image Research
Laboratory (PIRL) Lunar and Planetary Lab
(LPL) Department of Planetary
Sciences University of Arizona Tucson, Arizona |
Systems management |
Responsible for managing
the operations and growth of the PIRL computer facility used by a world-wide
community of scientists, educators, and students involved in theoretical and
applied research in Planetary Sciences and related fields that utilize image
processing and remote sensing computer capabilities for multispectral data
analysis. Administered, directly and via supervised staff, systems upgrades
and third-party device driver installations, backup and other routine systems
maintenance procedures as well as recovery from system failures, user
accounts and disk space allocations, local network structure and general
trouble-shooting. Responsible for new equipment and software evaluation,
specification (including vendor negotiations and RFQ procedures) and
acquisition. Provided systems administration support to affiliated LPL
clients. Provided consulting and general client support. Assisted the
Director in proposal preparation. |
Software development |
Worked with researchers and
staff in defining a strategic growth path for the development of new, and the
support of existing, software packages to meet the research needs of the Lab.
Provided system design and implementation technique specifications as project
leader, managing task allocation and participating in their execution to
ensure successful completion. Integrated user-supplied applications into
existing software environments based on the Unix operating system. Managed
the production of software modules (programs and libraries) providing
capabilities in the areas of network-distributed interprocess communications,
memory-mapped image data file access, generalized look-up table (LUT)
operations, image geometry transformations, image display device access, filmwriter
device control, system administration utilities and user interfaces (CLUI and
GUI using GKS, SunView and X-Windows methodologies). Wrote user and
programmer documentation and provided user training. Supported and enhanced
the in-house Generalized Array Processing (GARP) software subsystem and
administered other research software packages (e.g. IDL, MatLab, IRAF,
Khoros, JPL-VICAR and USGS-ISIS). |
Systems |
Sun Microsystems
(SPARC/Solaris, SunOS) servers (Enterprise 3000, 4/490) and workstations
(3-4/110 through multiprocessor, dual-head SPARCstation20), PCs (Intel
x86/Microsoft Windows 3.1) and Apple/Power Computing Macintoshes (PowerPC,
68k). Switched ethernet (10BaseT, 100BaseTX) network. NFS integrated disk
pool and a variety of other storage devices (CD, CD-R, EOD optical; 4mm, 8mm,
1/2" and QIC tapes). Specialized imaging devices (IIS-IVAS intelligent
displays, Agfa/Matrix QCR-Z digital filmwriter on GPIB). Shared (lp/lpr)
printers (network laserjet, SCSI dye sublimation, parallel ink jet, serial
dot matrix). Modems for dial-in, SLIP and PPP service. |
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6/81 - 5/92 |
Planning and Systems
Coordinator/Co-Owner idæim Studio The Graphic Studios
Company Tucson, Arizona |
Business co-owner/manager |
Co-founded and operated an
Arizona Corporation specializing in computer-based spatial data analysis for
land use suitability planning and related applications. Jointly held
responsibility for general company management functions, business operations,
new products and services development and the initiation and organization of
new business units. Participated in the activities of professional societies:
American Planning Association, Association for Computing Machinery
(ACM/SIGGraph), Digital Equipment Corporation Users Society (Local Users
Group newsletter producer and software librarian). |
Land use planning projects |
Provided scientific and
technical support for project definition and execution in the form of client
consultation, proposal preparation, and analysis procedure specifications,
database design and assembly, generation and evaluation of study results and
the production of reports and graphics. Participated in community organizing
of neighborhood group, non-profit agency, university and government
activities by providing pro bono
and contracted consulting and services on comprehensive metropolitan land use
planning issues. Managed tasks and worked with employees to assure project
completion within time and budget constraints. (Project list available on
request.) |
Facility development |
Responsible for the evaluation,
acquisition, installation and integration and maintenance of a specialized
computing system for in-house software development, the production of
geographic databases and interactive data analysis consulting with clients.
Designed and implemented low-level, event-driven (asynchronous) device
interfaces and software function libraries as needed to support an integrated
system of applications programs that implemented a proprietary spatial data
analysis software environment specializing in interactive composite
suitability analysis, GIS procedures, image processing techniques, digital
video processing and image output generation. Designed and implemented custom
software to meet specified industrial requirements for operation on the
clients' equipment. Provided business office computing capabilities with
connections to the research system. |
Systems |
Digital Equipment
Corporation (PDP-11/RSX-11M) minicomputer with hard disks (SMD winchester and
removable pack) and 1/2" tape subsystems, graphic input devices
(36x48" digitizer table, and three-axis & switches joy-stick), and
I/O peripherals (ANSI X-3.64 terminals and dot-matrix graphics printer) plus
real-time image processing subsystem (Gould/DeAnza IP-8500). Apple Macintosh
with printer and modem. |
Research |
The idæim facility
continues to function as a personal research lab with upgraded faclilities to
support the continuing development of open source software - such as the
C++ Parameter Value Language (PVL) classes
- and experimental applications. |
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Fall 1988, Fall 1989 |
Adjunct Lecturer -
Computer Cartography Department of Geography
and Regional Development University of Arizona Tucson, Arizona |
Teaching |
Advanced techniques course
- "Computer Cartography: Concepts for the digital processing of spatial data"
(481/581) - for upper level undergraduates and graduate students that
provided a foundation for the application of computer technologies to
cartographic concepts and spatial data analysis methods with special emphasis
on evolving image processing and geographic information systems. Students to
visit several research laboratories for demonstrations of different types of
facilities employing the capabilities being studied in various application
areas. |
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11/85 - 9/86 |
Systems
Analyst/Marketing Engineer DSP Systems Division Burr-Brown Research
Corporation Tucson, Arizona |
Applications support |
Responsible for providing
technical support for digital signal processing (DSP) and analog I/O VMEbus
board-level products used in high-performance, industrial computer systems.
Primary applications/customer support liaison between all North American
operations and the Scottish design and manufacturing facility. Supported
customers and field sales force in the areas of product functional
specifications, system integration methods, and trouble-shooting analysis and
solutions through seminar presentations, on-site customer visits throughout
the United States and Canada and on-call technical backup. Coordinated and
implemented promotional programs including advertising campaigns, literature
productions and major technical trade show exhibits in east and west coast
cities. Researched and analyzed market factors to forecast sales and identify
new product design criteria and application areas. Initiated and facilitated
business negotiations with related companies in the computer industry. |
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8/84 - 8/85 |
Software Engineer Microsystems Division Motorola, Inc. Tempe, Arizona |
Software development |
Worked with a project team
- Advanced Products Group - on the development of new computer graphics, QIC
tape, SCSI disk, and other subsystems for the company's VMEbus board-level
products. Designed, implemented and documented (as formal Engineering
Specifications) real-time, high speed software (communications interfaces,
device state-transition control systems and diagnostics) for use on
intelligent peripheral controllers in new general purpose computer systems.
Implemented high-level software modules to be used with virtual device
interfaces and the Graphical Kernel System. Utilized networked workstations
and servers for Unix development environments, and specialized stand-alone
and board-level systems for real-time embedded systems. |
Systems |
Motorola Microsystems
VME/10 (68000 family) workstations and DEC VAX central servers running
AT&T SYS/V Unix, Motorola (VersaDOS/68000) industrial control systems and
MVME-110 single board computers. Subsequently provided
contract services (software specifications) to the Government Electronics
Group through idæim. |
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5/84 - 8/84 |
Consultant/Systems
Manager Office of Arid Lands
Studies University of Arizona Tucson, Arizona |
Systems management |
Managed a new multi-user
research computing system (DEC PDP-11) used primarily by the Remote Sensing
Laboratory. System installation, maintenance and user assistance and training
were provided during the initial start-up transition period until the
organization was able to hire a permanent staff person to take responsibility
for system administration activities. Designed and implemented custom
software for large volume bibliographic database conversion (AGRICOLA) in
support of the department's extensive specialized library operations. Subsequently provided
contract services (image analysis) through idæim. |
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12/80 - 6/81 |
Computer Programmer Department of Chemistry Arizona State University Tempe, Arizona |
Software development |
Carried out a project for
the design of scientific software, including algorithm specification and
implementation techniques, to meet research needs for image matching
capabilities. Research of previous work concerning digital image comparison
algorithms was used as the basis for integrating new image processing
software into an existing system of programs utilized in high resolution
electron microscopy studies of crystal structures. Implemented routines on a
general purpose minicomputer (Data General) with special purpose imaging
hardware (Lexidata 3400). |
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10/80 - 5/81 |
Consultant Museum of Northern
Arizona Flagstaff, Arizona |
Archaeological analysis |
Provided services in
spatial data analysis by applying the Map Analysis and Processing System to
the investigation of extensive petroglyph sites of boulders covering
hillsides in a major flood control management area under development by the
U.S. Army Corps of Engineers. |
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6/80 - 12/80 |
Consultant Office of Cultural
Resource Management Department of
Anthropology Arizona State University Tempe, Arizona |
Archaeological analysis |
Ported the proprietary Map
Analysis and Processing System (MAPS) software for spatial data analysis from
a large main-frame, distributed processing environment to a stand-alone
minicomputer with graphics oriented hardware so as to increase the system's
overall utility and availability. Added new modules to the MAPS software to
implement resource utilization modeling. Provided personnel training for
database building. Advised in data analysis and interpretation of the
results. Contributed to the final research report. Produced printed color
posters summarizing the study results for presentation at archaeological conferences
and distribution to interested researchers. |
Systems |
Computing center main-frame
(Univac 1100), minicomputer (Tektronix 4081) vector graphics workstation. |
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1/79 - 6/80 |
Section Manager Lofgreen Printing Mesa, Arizona |
Phototypesetting |
Managed and operated a new
computer phototypesetting (CompuGraphic) service for a mid-sized printing
business. Assisted the owner with customer service, job costing, and
production management including the design and implementation of a more
efficient job scheduling and tracking system. Also learned to operate small
(AB Dick) to medium size (Heidelberg) offset and letterpress printing presses
and associated photographic, plate making and cutting and binding equipment. |
Graphic design and production |
In association with one of
the printers at Lofgreen's, designed, edited and produced brochures,
newsletters and magazines for the Gentle Strength Food Co-op and related
cooperative associations as a gratis community service. |
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1/76 - 8/77 |
Chief of Staff Delaware Community Land
Trust Philadelphia,
Pennsylvania |
Program development |
Responsible for setting up
and managing a small office for a non-profit (501(c)3) community group of
regional scope, including general operations and supervision of other
employees and volunteers. Participated in the design and implementation of
new programs for land acquisition and use planning. Sought out and helped
pursue fund-raising opportunities including proposal preparation. Held
responsibility for coordinating financial matters. Organized and participated
in public relations activities and brochure design and production. Visited
all significant similar organizations in New England. |
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9/75 - 10/76 |
Planning Intern Area Planning Division Philadelphia City
Planning Commission Philadelphia,
Pennsylvania |
Community planning assistance |
Worked part-time doing
environmental field surveys, production of cartographic folios, historic
research and automobile traffic data analysis for community-wide parks and
recreation and open space projects, historic preservation efforts and traffic
routing problems. Achieved the top position in the City's test of potential
new Planning Commission employees. |
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8/74 - 1/75 |
Teaching Assistant College of Engineering Arizona State University Tempe, Arizona |
Computer programming education |
Provided one-on-one
consultative/tutorial instruction to entry level students in FORTRAN
programming courses. |
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9/72 - 3/74 |
Field Ecologist Rio Palenque Inc. Coral Gables, Florida |
Environmental impact assessment
studies |
Worked as a member of
project teams doing ecological field surveys to meet State of Florida
permitting requirements for land development projects in southeastern Florida
and the Keys. Collected soils and water data and participated in vegetation
and wildlife (birds, large mammals) surveys in areas of Everglade sloughs,
hardwood hammocks, mangrove swamps and inter-tidal (inland waterways and
tidal creeks) and near shore waters (subsurface). Carried out laboratory
analysis of samples for chemical and physical composition. Managed a
long-term program of data collection, monitoring and analysis for the
assessment of bio-production and the evaluation of construction impacts in
mangrove estuaries (north Key Largo, Florida). Designed and implemented new
and improved field research equipment and methods for harsh environments,
including light penetration measurements of mangrove canopies. |
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9/71 - 9/72 |
Interviewer County Manager's Office Metropolitan Dade County Miami, Florida |
Social programs effectiveness
research |
Collected data from the
records of the County's drug rehabilitation programs and police files for
computer analysis. Conducted in-depth home and jail interviews with drug
program participants, past clients, staff and administrators and concerned
citizens. Performed quantitative and qualitative analysis resulting in the
production of summary reports with policy recommendations. |
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United Way of Southern
Florida Coral Gables, Florida |
Social programs effectiveness
research |
Collected questionnaire
information from indigent and disabled people receiving home meal deliveries
by a program providing services in the metropolitan Miami area and the
extremely poor shantytown near Homestead, Florida. |
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9/66 - 8/71 |
Laboratory Research
Assistant Department of Physics University of Miami Coral Gables, Florida |
Student research assistant |
Worked under the direction
of the manager of the High Energy Physics Research Labs doing equipment
assembly, operation and data analysis in conjunction with experiments
involving cesium plasma characteristics and studies of nuclear fusion in
magnetically contained colliding plasmas. |
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Bascom Palmer Eye
Institute Miami, Florida |
Student research assistant |
Assisted in carrying our
single-cell functional studies - using domestic cats, rabbits and iguanas -
concerning the neurological mechanisms of vision. |
Education |
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Graduate Education |
1/80 - 12/80 |
College of Liberal Arts Arizona State University Tempe, Arizona |
Land use practicum |
Advanced seminar studies in
the theoretical and practical aspects of land use planning law, computer
graphic techniques and spatial analysis. |
8/77 - 12/78 |
College of Liberal Arts Arizona State University Tempe, Arizona |
Environmental Geography |
A practical program in the
Department of Geography (under the direction of John Lounsbury and Frank
Aldrich) in computer cartography. And individual effort to use developing
computer technology in addressing pragmatic problems resulted in the design
and implementation of a totally new distributed processing software system
for database generation and interactive analysis of spatially mapped
information (MAPS: Map Analysis and Processing System); originally applied to
community planning and land use suitability contexts. |
9/75 - 5/77 |
College of Fine Arts University of
Pennsylvania Philadelphia,
Pennsylvania |
Regional Planning |
A comprehensive program in
the Department of Landscape Architecture and Regional Planning (under the
direction of Ian McHarg and Narendra Juneja) of professional training based
on community oriented studio projects emphasizing the integrated application
of physical/environment, social/cultural and economic/institutional factors
by the methods of applied human ecology and composite suitability-constraint
analysis for the production of procedural legislation and the development of
performance guidelines employed by land use planning agencies. |
6/74 - 7/75 |
College of Engineering Arizona State University Tempe, Arizona |
Ecology, Environmental Engineering and Public Administration |
An engineering centered
program focusing on ecological systems as the context for the practical
skills of community planning and development, including the development of
computer programs to assist in the modeling and design of hydrologic systems. |
9/73 - 1/74 |
College of Arts and
Sciences University of Miami Coral Gables, Florida |
Problems of Metropolitan
Government |
A special independent study
course to analyze the newly implemented State of Florida's regional planning
legislation (under a Fish and Game protection provision) and evaluate its
impact on the administration of metropolitan governments. |
9/70 - 8/71 |
Colleges of Arts and
Sciences, Engineering and Medicine University of Miami Coral Gables, Florida |
Psychology, Sensory Processes and Unified Medical Science |
Interdisciplinary programs
of experimental psychology, neurophysiology and biomedical engineering
focused on achieving an integrated understanding of human functioning.
Hospital and laboratory experience combined with classroom and research
studies covering all anatomical and mental systems in detail. |
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Undergraduate Education |
9/66 - 8/70 |
University of Miami Coral Gables, Florida |
Bachelor Of Science |
Major: Physics (Honors
Program) and Mathematics Minor: Sociology and Human
Relations |
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Conferences and
Workshops |
9/07 |
Seminar Series Planetary Sciences
Institute Tucson, Arizona |
Presenter |
On-going seminar series on
topics of interest in the field of Planetary Sciences. Delivered a talk
titled "Designing and Implementing Processing Pipelines with Conductor:
The HiROC Experience" describing the results of using the Conductor
software for HiRISE data product generation at the HiRISE Operations Center
with an emphasis on the applicability of the system to other data processing
production operations. |
5/07 |
10th Lunar and Planetary
Laboratory Conference (LPLC) Lunar and Planetary Lab Tucson, Arizona |
Presenter |
A yearly conference to
review the work being done at the Lunar and Planetary Lab. For the first time a day-long
Technical Session was offered to present the results of technical development
efforts in support of the scientific research. Delivered three presentations:
"Feeding the Goose to Get Golden Eggs: Institutional Support and Legal
Obstacles to Open Source Software", "Designing and Implementing
Processing Pipelines with Conductor: The HiROC Experience" and
"JPEG2000: Pros and Cons". |
11/06 |
5th Joint Earth Science
Data Systems (ESDS) Working Group National Aeronautics and
Space Administration (NASA) College Park, Maryland |
Invited Presentation |
This conference coordinates
the activities of its four Working Groups - Metrics Planning and Reporting,
Technology Infusion, Software Reuse and Standards Processes - by reviewing
on-going activities, discussing issues and considering plans and potential
solutions to meet the needs of NASA's Earth Science Data Systems. Delivered a
talk titled "Feeding the Goose to Get Golden Eggs: Institutional Support
and Legal Obstacles to Open Source Software" on the bottom-up
perspective for software reuse using open source software development as a
model. |
2/06 |
37th Lunar and Planetary
Science Conference (LPSC) Lunar and Planetary
Institute League City, Texas |
Poster Presentation |
"Conductor: Managing
Processing Pipelines" with accompanying abstract paper describing the
software system. |
7/01
- 1/06 |
Software Technology
Discussion Group Lunar and Planetary Lab Tucson, Arizona |
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An outgrowth of the
Programming in C++ discussion group, this group met weekly to discuss areas
of software technology relevant to the participants' work. Special focus
topics, tutorials and presentations were offered periodically including
"Building an Executable: compile, link and make", "Extensible
Markup Language (XML)", "Source Code Management: SCCS and CVS",
"Code Optimization and Parallel Programming, "XHTML and CSS for Web
Development", "Java Beans" and "GUI Toolkits"
amongst many other interesting and pragmatically useful topics. |
3/00 - 8/01 |
Programming in C++ Lunar and Planetary Lab Tucson, Arizona |
Discussion Group Facilitator |
For those interested in
moving from the use of the C language to the C++ language in their work, or
for those new to programming who wished to start right off with
object-oriented software development, this group providing boot-strapping
tutorials in C++ syntax, object-oriented concepts and pragmatic experience
with application issues facing the participants. Participants acquired skills
using the language and applying the paradigms for the implementation of
solutions to their on-going work. |
2/00 - 3/00 |
Programming in C Lunar and Planetary Lab Tucson, Arizona |
Teacher |
A series of six 1-2 hour
classes on the basics of the C language for students and technical staff
seeking a quick-start pragmatic introduction to the programming language
syntax and its use in implementing applications. |
9/99 |
Distributed Computing
Workshop National Laboratory for
Applied Network Research Tucson, Arizona |
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A workshop on distributed
computing to address the research needs of researchers in all disciplines who
depend on high-performance networks such as vBNS/Abilene or Internet2
including the developmental directions of the research networks and how to
tune applications and systems to make efficient use of supercomputing sites.
Extensive labs and consulting on application needs was provided. |
10/96 |
AAS/DPS 28th Annual Meeting of
the Division for Planetary Sciences American Astronomical
Society Tucson, Arizona |
Local Organizing Committee |
Responsible for providing
computer services in coordination with NASA Science Internet of the Jet
Propulsion Laboratory. |
10/95 |
ADASS V Astronomical Data
Analysis Software and Systems Tucson, Arizona |
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An international conference
for scientists and programmers concerned with algorithms, software frameworks
and systems used for production and analysis of astronomical data. |
6/93 - 7/93 |
Los Alamos Computational
Science Workshop Los Alamos National
Laboratory (LANL) Los Alamos, New Mexico |
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One week of overview
presentations by leading experts in the field of high performance, parallel
processing computing systems and corresponding scientific algorithms and
applications. Additional two weeks of hands-on tutorials in advanced
programming techniques for massively parallel (Thinking Machines CM-5) and
vector optimized (Cray Y-MP) high-end computing systems. |
7/85 |
12th Annual Conference
on Computer Graphics (SIGGraph) Association for
Computing Machinery San Francisco,
California |
Speaker |
Delivered the overview
presentation "The Nature of a Digital Image" to the Introduction to
Image Processing session. |
6/74 - 7/74 |
Arcosanti Cosanti Foundation Cordes Junction, Arizona |
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Six week on-site production
workshop in the development of an experimental new community under the
direction of Paolo Soleri based on his conceptual and structural design
principles of "arcology". In addition to training and experience in
large scale concrete construction using modular casting techniques, organic
gardening in desert conditions and food commissary operation a complete
vegetation survey of the site's mesas and their surrounding lowlands along
the Agua Fria River was carried out as an individual initiative. |