scholarly journals High-Performance Wide-Area Optical Tracking: The HiBall Tracking System

2001 ◽  
Vol 10 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Greg Welch ◽  
Gary Bishop ◽  
Leandra Vicci ◽  
Stephen Brumback ◽  
Kurtis Keller ◽  
...  
Keyword(s):  
High Performance ◽  
Tracking System ◽  
Optical Tracking ◽  
Wide Area ◽  
Head Tracking ◽  
The Novel ◽  
Chapel Hill ◽  
Augmented Environments ◽  
The University

Since the early 1980s, the Tracker Project at the University of North Carolina at Chapel Hill has been working on wide-area head tracking for virtual and augmented environments. Our long-term goal has been to achieve the high performance required for accurate visual simulation throughout our entire laboratory, beyond into the hallways, and eventually even outdoors. In this article, we present results and a complete description of our most recent electro-optical system, the HiBall Tracking System. In particular, we discuss motivation for the geometric configuration and describe the novel optical, mechanical, electronic, and algorithmic aspects that enable unprecedented speed, resolution, accuracy, robustness, and flexibility.

scholarly journals Design and Regulation of Novel MnFe2O4@C Nanowires as High Performance Electrode for Supercapacitor

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 777 ◽  
Author(s):  
Lei Geng ◽  
Fengfeng Yan ◽  
Chenhao Dong ◽  
Cuihua An
Keyword(s):  
Energy Density ◽  
Electric Conductivity ◽  
Power Density ◽  
High Performance ◽  
High Specific Capacitance ◽  
The Novel ◽  
Micro Emulsion ◽  
High Electric Conductivity

Bimetallic oxides have been considered as potential candidates for supercapacitors due to their relatively high electric conductivity, abundant redox reactions and cheapness. However, nanoparticle aggregation and huge volume variation during charging-discharging procedures make it hard for them to be applied widely. In this work, one-dimensional (1D) MnFe2O4@C nanowires were in-situ synthesized via a simply modified micro-emulsion technique, followed by thermal treatment. The novel 1D and core-shell architecture, and in-situ carbon coating promote its electric conductivity and porous feature. Due to these advantages, the MnFe2O4@C electrode exhibits a high specific capacitance of 824 F·g−1 at 0.1 A·g−1 and remains 476 F·g−1 at 5 A·g−1. After 10,000 cycles, the capacitance retention of the MnFe2O4@C electrode is up to 93.9%, suggesting its excellent long-term cycling stability. After assembling with activated carbon (AC) to form a MnFe2O4@C//AC device, the energy density of this MnFe2O4@C//AC device is 27 W·h·kg−1 at a power density of 290 W·kg−1, and remains at a 10 W·h·kg−1 energy density at a high power density of 9300 W·kg−1.

scholarly journals The Role of High Performance Computing and Communication for Real-Time Biofeedback in Sport

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Anton Umek ◽  
Anton Kos
Keyword(s):  
High Performance Computing ◽  
Real Time ◽  
High Performance ◽  
Tracking System ◽  
Optical Tracking ◽  
Local Processing ◽  
Special Focus ◽  
Dataflow Computing ◽  
Performance Computing

This paper studies the main technological challenges of real-time biofeedback in sport. We identified communication and processing as two main possible obstacles for high performance real-time biofeedback systems. We give special attention to the role of high performance computing with some details on possible usage of DataFlow computing paradigm. Motion tracking systems, in connection with the biomechanical biofeedback, help in accelerating motor learning. Requirements about various parameters important in real-time biofeedback applications are discussed. Inertial sensor tracking system accuracy is tested in comparison with a high performance optical tracking system. Special focus is given on feedback loop delays. Real-time sensor signal acquisitions and real-time processing challenges, in connection with biomechanical biofeedback, are presented. Despite the fact that local processing requires less energy consumption than remote processing, many other limitations, most often the insufficient local processing power, can lead to distributed system as the only possible option. A multiuser signal processing in football match is recognised as an example for high performance application that needs high-speed communication and high performance remote computing. DataFlow computing is found as a good choice for real-time biofeedback systems with large data streams.

scholarly journals High Performance Electro-Optic Scanner Based Optical Head Tracking System

1999 ◽  
Vol 23 (S_1_MORIS_99) ◽  
pp. S1_247-250
Author(s):  
Jinhui Zhai ◽  
S. Schroeck ◽  
Y. Huang ◽  
W. Messner ◽  
D.D. Stancil ◽  
...  
Keyword(s):  
High Performance ◽  
Tracking System ◽  
Head Tracking ◽  
Optical Head ◽  
Electro Optic

scholarly journals A framework implementation of surveillance tracking system based on PIR motion sensors

2019 ◽  
Vol 13 (1) ◽  
pp. 235 ◽  
Author(s):  
Bashar Alathari ◽  
Mohammed Falih Kadhim ◽  
Salam Al-Khammasi ◽  
Nabeel Salih Ali
Keyword(s):  
High Performance ◽  
Motion Tracking ◽  
Tracking System ◽  
Position Estimation ◽  
Motion Sensors ◽  
Desktop Computer ◽  
Live Broadcast ◽  
Current Estimator ◽  
Motion Tracking System ◽  
The University

A motion tracking system made from affordable hardware components is implemented to be used inside the University of Kufa (UoK) buildings to track and detect any suspicious activities. The current research objectives are to automatically monitor, track intruders using sensors, servo, and camera that occurs around the system using Arduino microcontroller. The mounted camera track, capture the moving object and sending a live broadcast to a receiving host which could be a desktop computer, laptop, tablet or a smartphone. In this study, we consider the problem of automated position estimation using the electronic circuit of inexpensive binary motion sensors. We present simulation and experiments with Passive Infrared (PIR) motion sensors that suggest our current estimator. Fritzing software simulator is used to test and draw the circuits of the system. The proposed design worked efficiently during the experiments and shown high performance with 360 degrees of detection for the sensing environments.

scholarly journals Development of wide-area and long-term tracking system for skipjack tuna Katsuwonus pelamis around FADs

2021 ◽  
Author(s):  
SAKI ASAI ◽  
KEIICHI UCHIDA ◽  
KAZUSHI MIYASHITA ◽  
NOBUAKI ARAI ◽  
HIROMICHI MITAMURA ◽  
...  
Keyword(s):  
Tracking System ◽  
Wide Area ◽  
Skipjack Tuna ◽  
Katsuwonus Pelamis

scholarly journals Development of Electric and Chemical Microthrusters

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
M. Tajmar ◽  
C. A. Scharlemann
Keyword(s):  
Applied Sciences ◽  
Electric Propulsion ◽  
Metal Ion ◽  
High Performance ◽  
Specific Impulse ◽  
Long Term Stability ◽  
University Of Applied Sciences ◽  
Green Propellants ◽  
The University

The increasing application of microsatellites (from 10 kg up to 100 kg) as well as CubeSats for a rising number of various missions demands the development of miniaturized propulsion systems. Fotec and The University of Applied Sciences at Wiener Neustadt is developing a number of micropropulsion technologies including both electric and chemical thrusters targeting high performance at small scales. Our electric propulsion developments include a series of FEEP (field emission electric propulsion) thrusters, of which the thrust ranges fromμN to mN level. The thrusters are highly integrated into clusters of indium liquid-metal-ion sources that can provide ultralow thrust noise and long-term stability. We are also developing a micro PPT thruster that enables pointing capabilities for CubeSats. For chemical thrusters, we are developing novel micromonopropellant thrusters with several hundred mN as well as a 1–3 N bipropellant microrocket engine using green propellants and high specific impulse performance. This paper will give an overview of our micropropulsion developments at Fotec, highlighting performance as well as possible applications.

Advances in imaging SIMS studies of stained and BrdU-labelled human metaphase chromosomes

1995 ◽  
Vol 53 ◽  
pp. 932-933
Author(s):  
R. Levi-Setti ◽  
J. M. Chabala ◽  
R. Espinosa ◽  
M. M. Le Beau
Keyword(s):  
High Performance ◽  
Secondary Ion Mass Spectrometry ◽  
Analytical Sensitivity ◽  
Metaphase Chromosomes ◽  
Banding Patterns ◽  
Sector Mass Spectrometer ◽  
Staining Methods ◽  
The University ◽  
Secondary Ion ◽  
Better Than

We have shown previously that isotope-labelled nucleotides in human metaphase chromosomes can be detected and mapped by imaging secondary ion mass spectrometry (SIMS), using the University of Chicago high resolution scanning ion microprobe (UC SIM). These early studies, conducted with BrdU- and 14C-thymidine-labelled chromosomes via detection of the Br and 28CN- (14C14N-> labelcarrying signals, provided some evidence for the condensation of the label into banding patterns along the chromatids (SIMS bands) reminiscent of the well known Q- and G-bands obtained by conventional staining methods for optical microscopy. The potential of this technique has been greatly enhanced by the recent upgrade of the UC SIM, now coupled to a high performance magnetic sector mass spectrometer in lieu of the previous RF quadrupole mass filter. The high transmission of the new spectrometer improves the SIMS analytical sensitivity of the microprobe better than a hundredfold, overcoming most of the previous imaging limitations resulting from low count statistics.

From Volunteering to Academic Programming: A Case Example

2016 ◽  
Vol 1 (17) ◽  
pp. 7-11 ◽  
Author(s):  
Cindy Gill ◽  
Sneha Bharadwaj ◽  
Nancy Quick ◽  
Sarah Wainscott ◽  
Paula Chance
Keyword(s):  
Special Needs ◽  
Cultural Relevance ◽  
Master's Program ◽  
Speech Language Pathology ◽  
Community Based ◽  
Charitable Organization ◽  
Language Pathology ◽  
The University

A speech-language pathology master's program that grew out of a partnership between the University of Zambia and a U.S.-based charitable organization, Connective Link Among Special needs Programs (CLASP) International, has just been completed in Zambia. The review of this program is outlined according to the suggested principles for community-based partnerships, a framework which may help evaluate cultural relevance and sustainability in long-term volunteer efforts (Israel, Schulz, Parker, & Becker, 1998).

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