Filters








278,704 Hits in 3.9 sec

Portable adapter for barcode scanners

I.Y Soon, C.K Yeo, Y.H Sng
1999 Microprocessors and microsystems  
This paper describes the design of a low-cost portable adapter for commercial barcode scanners. The portable adapter transforms any ordinary barcode scanner into a portable standalone data collector.  ...  Ordinary barcode scanners are linked to personal computers and hence render the scanner non-portable unless the scanner is connected to a notebook or palm-top computer.  ...  Upon activation of the portable adapter, an initialisation is performed on the 8255 PPI and the LCD.  ... 
doi:10.1016/s0141-9331(99)00027-7 fatcat:vit34q4mxngh5mgbav4ywektte

Application Adaptation Through Transparent and Portable Object Mobility in Java [chapter]

Caspar Ryan, Christopher Westhorpe
2004 Lecture Notes in Computer Science  
This paper describes MobJeX, an adaptive Java based application framework that uses a combination of pre-processing and runtime support to provide transparent object mobility (including AWT and Swing user  ...  The MS is compared to its most similar predecessor FarGo, demonstrating the advantages of the MS in terms of transparency and portability.  ...  and adapting to their environment.  ... 
doi:10.1007/978-3-540-30469-2_29 fatcat:nlozo3be4berlkutihft5kgyhe

Adaptive beamforming measurements using four-element portable and mobile arrays

G.G. Joshi, C.B. Dietrich, W.L. Stutzman
2005 IEEE Transactions on Antennas and Propagation  
Interference rejection performance is determined based on the increase in mean signal-to-interference-plus-noise ratio (SINR) using adaptive beamforming at 10% and 1% outage levels.  ...  Results of an experimental investigation of adaptive beamforming in the presence of interferers are presented.  ...  Schaffner, and H. P. Hsu at HRL, and R. Ruth at DARPA for supporting this research; and D. Wells, J. Noronha, and S. Chen with their support with the measurements.  ... 
doi:10.1109/tap.2005.859757 fatcat:jv45ajve5nby5ei7lhnxatyxga

Atmospheric spatial and temporal seeing monitor using portable amateur astronomy equipment

Eugene B. Seneta, Bridget O'Donovan
2004 Advancements in Adaptive Optics  
Nevertheless, such information is vital if the bandwidth and control requirements for active and adaptive systems at state-of-the-art telescopes and optical/IR interferometers are to be correctly specified  ...  We review the design and performance of the device and present examples of results from routine use at the Cambridge Optical Aperture Synthesis Telescope (COAST) site in the UK.  ...  Cavendish Laboratory for assistance with data interpretation and Dan Klinglesmith III of the Magdalena Ridge Observatory for many helpful suggestions and diagnostics.  ... 
doi:10.1117/12.550400 fatcat:7emvhfot7bgz3hwbyilpdcew4u

Bedside Radiography with a New Portable X-Ray Apparatus; The Army Bedside X-Ray Unit Adapted as a Portable Apparatus for Civilian Practice

W. K. Coffin
1919 Boston Medical and Surgical Journal  
Two hundred and ninety-three or 12% with marked postural defects were found, 23 of this number had distinct lateral curves, while 29 were rachitic, and 11 post-infantile paralysis cases.  ...  The charts show graphically the number and percentage of physical defects found for the total number of children examined.  ...  In all the fluoroscopic work,-chest, gastro-intestinal and fracture,-illumination was excellent and outlines clear. ADAPTATION OP ARMY BEDSIDE UNIT TO CIVILIAN PRACTICE.  ... 
doi:10.1056/nejm191910021811404 fatcat:v4fr2h2eznatlj2wd65nx3wwb4

Highly portable and efficient implementations of parallel adaptive N-body methods

David Blackston, Torsten Suel
1997 Proceedings of the 1997 ACM/IEEE conference on Supercomputing (CDROM) - Supercomputing '97  
We describe the design of several portable and efficient parallel implementations of adaptive N-body methods, including the adaptive Fast Multipole Method, the adaptive version of Anderson's Method, and  ...  Our codes are based on a communication and work partitioning scheme that allows an efficient implementation of adaptive multipole methods even on high-latency systems.  ...  Acknowledgements We would like to thank Kevin Lang and Satish Rao for many helpful discussions.  ... 
doi:10.1145/509593.509597 dblp:conf/sc/BlackstonS97 fatcat:deim6fy6yrhxhp6cz5hcn4kfdm

The Castro Adaptive Mesh Refinement Hydrodynamics Code: Applications, Algorithm Development, and Performance Portability

Michael Zingale, Max Katz, Maria Barrios Sazo, Alice Harpole, Ann Almgren, John Bell, Don Willcox, Weiqun Zhang
2019 Zenodo  
We also highlight the work done on performance portability, allowing us to reuse the same computational kernels on CPUs and GPUs.  ...  We describe the recent developments in the open source Castro adaptive mesh refinement (radiation) hydrodynamics code, with full self-gravity, general equations of state, and arbitrary nuclear reaction  ...  • Multigroup flux-limited diffusion radiation hydrodynamics, including terms to O(v/c) • Adaptive mesh refinement with subcycling in time; jumps of 2x and 4x between levels • Arbitrary equation  ... 
doi:10.5281/zenodo.2537406 fatcat:xgjbdpqbkjg2fi6ldtcvmfnf54

Ultra-fast Adaptive Frequency-controlled Hysteretic Buck Converter for Portable Devices

Kwang-Ho Kim, Bai-Sun Kong
2016 JSTS Journal of Semiconductor Technology and Science  
The paper describes a hysteretic buck converter including a differentiator and an adaptive hysteresis window controller.  ...  The adaptive hysteresis window control allows a monotonous operation with predictable noise spectrum, and gives way to efficient design for variable supply and output voltages.  ...  INTRODUCTION Recently, portable electronic systems such as laptop computers and cell phones have been widely used in everyday life.  ... 
doi:10.5573/jsts.2016.16.5.615 fatcat:o6wutcxm5nf3zohowtjtq73hdu

Design and performance evaluation of a portable parallel library for space-time adaptive processing

J.M. Lebak, A.W. Bojanczyk
2000 IEEE Transactions on Parallel and Distributed Systems  
We have developed a portable, parallel library of subroutines for prototyping STAP methods.  ...  AbstractÐSpace-time adaptive processing (STAP) refers to a class of methods for detecting targets using an array of sensors.  ...  The methods were fully portable between the SP2 and the Rome Paragon once implemented.  ... 
doi:10.1109/71.841744 fatcat:b6jayxhy6jfgjpp3pdwot5x64e

Design and Performance of a Modular Portable Object Adapter for Distributed, Real-Time, and Embedded CORBA Applications [chapter]

Raymond Klefstad, Arvind S. Krishna, Douglas C. Schmidt
2002 Lecture Notes in Computer Science  
This paper discusses the design and performance of ZENs portable object adapter (POA) which is an important component in a CORBA object request broker (ORB).  ...  Second, it explains how design patterns can be applied to improve the quality and performance of POA implementations.  ...  Portable Object Adapter Functionality and Architecture The CORBA portable object adapter (POA) is a standard component that enables programmers to compose servants portably across ORB implementations.  ... 
doi:10.1007/3-540-36124-3_38 fatcat:rfp2vrannzc75dnmwslhk4ay4i

Adaptable, metadata rich IO methods for portable high performance IO

Jay Lofstead, Fang Zheng, Scott Klasky, Karsten Schwan
2009 2009 IEEE International Symposium on Parallel & Distributed Processing  
This paper employs ADIOS, the ADaptable IO System, as an IO API to address (1)-(3) above.  ...  Since IO performance on HPC machines strongly depends on machine characteristics and configuration, it is important to carefully tune IO libraries and make good use of appropriate library APIs.  ...  ADIOS USE AND SOFTWARE ARCHITECTURE ADIOS [28] , the ADaptable IO System, provides an API nearly as simple as POSIX IO and an external XML configuration file that is parsed once at startup, the latter  ... 
doi:10.1109/ipdps.2009.5161052 dblp:conf/ipps/LofsteadZKS09 fatcat:cbrmh4ihcjhxlm77m4yg53apx4

Adaptive Critic Design for Energy Minimization of Portable Video Communication Devices

Zhao Sun, Xi Chen, Zhihai He
2008 2008 Proceedings of 17th International Conference on Computer Communications and Networks  
In this paper, we explore advanced methods in adaptive system control and develop an online complexity control and energy minimization scheme for real-time video encoding.  ...  Portable video communication devices operate on batteries with limited energy supply. Video compression is computationally intensive and energy-demanding.  ...  video encoding over portable devices.  ... 
doi:10.1109/icccn.2008.ecp.70 dblp:conf/icccn/SunCH08 fatcat:ertcddejtzay5ouwjzustnlqdm

A novel adaptive hysteresis DC-DC buck converter for portable devices

SUNG SIK PARK, JU SANG LEE, SANG DAE YU
2019 Turkish Journal of Electrical Engineering and Computer Sciences  
As a result, this technique reduces the voltage ripple below 8.08 mVpp and the current ripple below 93.98 mApp for a load current of 500 mA.  ...  This paper presents a new technique that adjusts the hysteresis window depending on the variations in load current caused by a voltage-mode circuit to reduce the voltage and current ripples.  ...  Introduction DC-DC buck converters are widely used in portable devices like cellular phones, laptop computers, and digital cameras etc.  ... 
doi:10.3906/elk-1809-45 fatcat:yvp556jobbanphbpj2x2voprfe

GridMate: A Portable Simulation Environment for Large-Scale Adaptive Scientific Applications

Xiaolin Li, Manish Parashar
2008 2008 Eighth IEEE International Symposium on Cluster Computing and the Grid (CCGRID)  
In this paper, we present a portable simulation environment GridMate for large-scale adaptive scientific applications in multi-site Grid environments.  ...  HRMS defines a set of flexible mechanisms and policies to adapt to state transitions of both applications and resources.  ...  To aid the evaluation of partitioning and scheduling strategies for large-scale adaptive applications in Grid environments [10] , [11] , we build a portable simulation environment, GridMate.  ... 
doi:10.1109/ccgrid.2008.121 dblp:conf/ccgrid/LiP08 fatcat:3ev7gnbfvzbo5arv5op6aoyy6m

Adaptive Critic Design for Energy Minimization of Portable Video Communication Devices

Zhao Sun, Xi Chen, Zhihai He
2010 IEEE transactions on circuits and systems for video technology (Print)  
In this paper, we explore advanced methods in adaptive system control and develop an online complexity control and energy minimization scheme for real-time video encoding.  ...  Portable video communication devices operate on batteries with limited energy supply. Video compression is computationally intensive and energy-demanding.  ...  video encoding over portable devices.  ... 
doi:10.1109/tcsvt.2009.2026835 fatcat:eckwndffbfajlj25nt3vmlfssu
« Previous Showing results 1 — 15 out of 278,704 results