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Human systems integration and advanced technology in engineering department workload and manpower reduction

NAVAL ENGINEERS JOURNAL 2003年第1期115卷 57-65页

作者： Lively, KA Seman, AJ Kirkpatrick, M KENNETH A. LIVELY graduated from the University of Colorado with a BS in applied mathematics and an MS in mathematics in 1976 and from the Massachusetts Institute of Technology with an MS in electrical engineering and the degree ocean engineer in naval architecture and marine engineering in 1984. He retired from the U.S. Navy in 1989 after 23 years of service. Assignments included electrical officer on the USS Constellation (CV 64) project engineer for the DDG 51 machinery control system (NAVSEA) and DDG 51 Technical Director (NAVSEA). He was vice president of the PDI Division of Bird-Johnson Company from July 1989 to November 1998 where he managed various gas turbine and machinery controls related development projects. He joined Anteon Corporation's Systems Engineering Group as senior controls engineer in December 1998 where he provided technical support to the integrated power systems program (NAVSEA PMS 510) and managed the Office of Naval Research Afloat Laboratory. DR. MARK KIRKPATRICK is currently an independent consultant in human factors and work-load/manning analysis and modeling. He holds a Ph.D. degree in experimental psychology from The Ohio State University and has 34 years of experience in applied human factors. From 1982 through 2000 Dr. Kirkpatrick served as the senior vice president of Carlow International. Prior to joining Carlow in 1982 Dr. Kirkpatrick served as a member of the technical staff at North American Rockwell's Missiles Division and as a project director and vice president for Essex Corporation. His areas of expertise include workload simulation task analysis operator-in-the-loop simulation human performance experimentation statistical analysis and human factors T&E. He has directed and/or participated in human factors projects for the U.S. Navy U.S. Army NASA Department of Transportation the U.S. Nuclear Regulatory Commission and private industry. ANTHONY J. SEMAN III is the technical manager for the reduced ship's crew by virtual presence (RSVP) advanced technology d

Aboard current ships, such as the DDG 51, engineering control and damage control activities are manpower intensive. It is anticipated that, for future combatants, the workload demand arising from operation of systems under conditions of normal steaming and during casualty response will need to be markedly reduced via automated monitoring, autonomous control, and other technology initiatives. Current DDG 51 class ships can be considered as a manpower baseline and under Condition III typical engineering control involves seven to eight watchstanders at manned stations in the Central Control Station, the engine rooms and other machinery spaces. In contrast to this manning level, initiatives such as DD 21 and the integrated engineering plant (IEP) envision a partnership between the operator and the automation system, with more and more of the operator's functions being shifted to the automation system as manning levels decrease. This paper describes some human systems integration studies of workload demand reduction and, consequently, manning reduction that can be achieved due to application of several advanced technology concepts. Advanced system concept studies in relation to workload demand are described and reviewed including. Piecemeal applications of diverse automation and remote control technology concepts to selected high driver tasks in current DDG 51 activities. Development of the reduced ship's crew by virtual presence system that will provide automated monitoring and display to operators of machinery health, compartment conditions, and personnel health. The IEP envisions the machinery control system as a provider of resources that are used by various consumers around the ship. Resource needs and consumer priorities are at all times dependent upon the ship's current mission and the availability of equipment pawnbrokers.

关键词： Naval warfare

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Independent component imaging of disease signatures

Independent component imaging of disease signatures

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IEEE International Symposium on Biomedical Imaging

作者： Yue Wang Junying Zhang Kun Huang J. Khan Z. Szabo Department of Radiology Johns Hopkins University and Medical Institutions MD USA Department of Electrical Engineering & Computer Science Catholic University of America DC USA Advanced Technology Center Oncogenomics Section National Institutes of Health DHHS MD USA

ISBN: (纸本)078037584X

This paper describes a neural computation approach to independent component imaging of disease signatures. The novel feature is to separate mixed imagery sources blindly over an informative index subspace. The recovery of patterns is achieved by independent component analysis, whose parameters are estimated using the infomax principle. We discuss the theoretic roadmap of the approach, and its applications to the partial volume correction in cDNA microarray expression and the neuro-transporter binding separation in positron emission tomography.

关键词： Diseases Independent component analysis Positron emission tomography Parameter estimation Gene expression Neoplasms Contamination computer science Paper technology Radiology

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Reliably locking system v shared memory for user level communication in linux

Reliably locking system v shared memory for user level commu...

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2001 IEEE International Conference on Cluster Computing, CLUSTER 2001

作者： Seifert, Friedrich Rehm, Wolfgang Chemnitz University of Technology Department of Computer Science Chair of Computer Architecture Strabe der Nationen 62 Chemnitz09111 Germany

ISBN: (纸本)0769511163

A major trend in recent cluster communication systems is to circumvent the operating system during the actual data transfers. That, on the one hand, reduces latency since there is no user-kernel transition needed and, on the other hand, increases bandwidth by avoiding additional intermediate copies. The data transfer is handled completely by the networking hardware and its DMA engine. For example, the Virtual Interface processes can access networking hardware directly in a protected manner. One of its characteristics is that it requires that all memory used for communication be locked down into physical memory. The same requirement holds true for the Infiniband ensures reliable locking of regular, i.e. private, virtual memory without altering the kernel. In this paper we present an extended solution that can handle System V shared memory as well. © 2001 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.

关键词： Linux

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Monitoring edge-to-edge traffic aggregates in differentiated services networks

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Journal of Network and Systems Management 2001年第3期9卷 267-291页

作者： Kim, Jae-Young Hong, James Won-Ki Choi, Tae-Sang Department of Computer Science and Engineering Pohang University of Science and Technology Internet Architecture Team Internet Technology Department Electronics and Telecommunications Research Institute Dept. of Computer Science and Engineering POSTECH Pohang South Korea IEEE KICS KNOM

Differentiated Services (DiffServ), which are currently being standardized in the IETF DiffServ working group, is a solution that can provide different qualities of service to different network users. DiffServ aggregates network packets at edge routers and forwards the aggregated packets to core routers with different priorities. In this paper, we propose methods using the SNMP framework for monitoring edge-to-edge traffic aggregates in a DiffServ domain, which consists of a set of DiffServ-enabled routers. In order to manage each DiffServ router, we have analyzed the DiffServ MIB and instrumented it in the router. Further, we propose monitoring behaviors of edge-to-edge traffic aggregates by combining topology and performance information from MIB II and DiffServ MIB. Construction procedures and graphical representation of the edge-to-edge traffic aggregates are explained in detail. We also extend our efforts to implement a DiffServ domain monitoring system that monitors a set of DiffServ-enabled routers and traffic aggregates between every edge router pair. We believe that the proposed monitoring methods can serve as useful building blocks for managing DiffServ networks. © 2001 Plenum Publishing Corporation.

关键词： End-to-End Qos Monitoring Internet QoS Management Network Management SNMP Manager and Agent

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Fast computation of the 3-D Euclidean distance transform on the EREW PRAM model

Fast computation of the 3-D Euclidean distance transform on ...

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International Conference on Parallel Processing, ICPP 2001

作者： Lee, Yu-Hua Horng, Shi-Jinn Seitzer, J. Department of Electrical Engineering National Taiwan University of Science and Technology 43 Section 4 Kee-Lung Road Taipei Taiwan Computer Science Department University of Dayton OH United States

ISBN: (纸本)0769512577

In a two or three-dimensional image array, the computation of Euclidean distance transform (EDT) is an important task. With the increasing application of 3D voxel images, it is useful to consider the distance transform of a 3D digital image array. Because the EDT is a global operation, it is prohibitively time consuming when performing the EDT for image generation. In order to provide the efficient transform computations, parallelism is employed. In this paper we first derive several important geometry relations and properties among parallel planes. We then develop a parallel algorithm for the three-dimensional Euclidean distance transform (3D-EDT) on the EREW PRAM computation model. The time complexity of our parallel algorithm is O(log2 N) for an NxNxN image array. © 2001 IEEE.

关键词： Image converters

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Reliably locking system V shared memory for user level communication in Linux

Reliably locking system V shared memory for user level commu...

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Annual IEEE Symposium on Foundations of computer science

作者： F. Seifert W. Rehm Department of Computer Science Chair of Computer Architecture Chemnitz University of Technology Chemnitz Germany

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Three dimensional reconstruction of blood flow within the left ventricle: comparison of normal, dilated cardiomyopathy and reduced ejection fraction

Three dimensional reconstruction of blood flow within the le...

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computers in Cardiology (CinC)

作者： E. Boonchieng J.S. Soble K. Dean R. Lang J. Roberge Department of Computer Science Chiang Mai University Chiang Mai Thailand Section of Cardiology Rush Medical College Chicago USA Section of Cardiology University of Chicago Chicago USA Department of Computer Science Illinois Institute of Technology Chicago USA

We have developed a method for creating a 3D reconstruction of blood flow within the left ventricular (LV) chamber from a set of 2D color flow echocardiographic cine loops. The resulting reconstructions allow a physician to view bloodflow in multiple dimensions, permitting an immediate perception of the dynamic shape, size and direction of the flow structures and patterns in their true nature, without the need for the physician to mentally construct 3D views from a limited number of 2D color flow loops. In addition to their value in qualitative assessment, these 3D reconstructions offer the promise of a more complete quantitative clinical assessment of blood flow based on statistical values derived from these 3D models of flow - as opposed to extrapolated from 2D data, as is done clinically today. The ability to measure LV flow rates and volume is quite important because changes inflow rates and volume may prove critical for analysis of patients with heart failure. These measurements are also keys to understanding the ventricular function. We also have defined an approach for creating a 3D reconstruction of LV blood flow over time - in effect, a 4D model of LV blood flow. We have shown that, in the absence of significant velocity aliasing defects, the models obtained by this technique conform to the conservation of flow. Finally, we note that this study can be used to differentiate between normal dilated cardiomyopathy and reduced ejection fraction, although it offers limited insight into the specific causes of these disorders.

关键词： Blood flow Cardiology Image reconstruction Cardiac disease computer science Fluid flow measurement Heart Ultrasonic transducers Educational institutions Shape

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A randomized attitude slew planning algorithm for autonomous spacecraft

A randomized attitude slew planning algorithm for autonomous...

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AIAA Guidance, Navigation, and Control Conference and Exhibit 2001

作者： Frazzoli, E. Dahleh, M.A. Feron, E. Kornfeld, R.P. Laboratory for Information and Decision Systems Massachusetts Institute of Technology Cambridge MA United States Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge MA United States Department of Aeronautics and Astronautics Massachusetts Institute of Technology Cambridge MA United States Avionic Systems Engineering Section Jet Propulsion Laboratory Pasadena CA United States

ISBN: (纸本)9781563479786

The ability to autonomously generate and execute large angle attitude maneuvers, while operating under a number of celestial and dynamical constraints, is a key factor in the development of several future space platforms. In this paper we propose a randomized attitude slew planning algorithm for autonomous spacecraft, which is able to address a variety of pointing constraints, including bright object avoidance and ground link maintenance, as well as constraints on the control inputs and spacecraft states, and integral constraints such as those deriving from thermal control requirements. Moreover, through the scheduling of feedback control policies, the algorithm provides a consistent decoupling between low-level control and attitude motion planning, and is robust with respect to uncertainties in the spacecraft dynamics and environmental disturbances. Simulation examples are presented and discussed. © 2001 by the American Institute of Aeronautics and Astronautics. Inc. All rights reserved.

关键词： Space platforms

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Tuning buffer size in the multimedia router (MMR)

Tuning buffer size in the multimedia router (MMR)

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： B. Caminero C. Carrion F.J. Quiles F.J. Duato S. Yalamanchili Department of Computer Science. Escuela Politecnica Superior University de Castilla-La Mancha Albacete Spain Department of Information Systems and Computer Architecture University of Politecnica de Valencia Valencia Spain School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA

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Predictive classification for integrated pest management by clustering in NN output space

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6th International Work-Conference on Artificial and Natural Neural Networks, IWANN 2001

作者： Salmerón, M. Guidotti, D. Petacchi, R. Reyneri, L.M. Department of Computer Architecture and Technology E.T.S.I.I. Universidad de Granada Campus Fuentenuev a s/n GranadaE-18071 Spain Agricultural Sector Agricultural Entomology Section Scuola Superiore SantAnna Via Carducci 40 PisaI-56100 Italy Department of Electronics Politecnico di Torino c.so Duca degli Abruzzi 24 TorinoI-10129 Italy

ISBN: (纸本)9783540422372

In this paper we consider the successful hybridation of a two modern computational schemes, Clustering and Neural Networks, for the Predictive Classification of the future value of insect infestation levels for Integrated Pest Management (IPM) of olive groves. The predictive classification techniques employed allow managers to improve their work in two ways: first, by reducing sampling demands of the variables involved, which is a costly process;and second, by recognizing potential infestation problems a up to two weeks beforehand, in order to optimize the use of pesticide chemical products and this reduce financial costs. © Springer-Verlag Berlin Heidelberg 2001.

关键词： Artificial intelligence

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