The Energy Endoscope: Real-time Detailed Energy Accounting for Wireless Sensor Nodes (2007)
Stathopoulos, Thanos, McIntire, Dustin, Kaiser, W J
This paper describes a new embedded networked sensor platform architecture that combines hardware and software tools providing detailed, fine-grained real-time energy usage information. We introduce...
Developments on the CENS Structural Health Monitoring Front (2007)
Skolnik, Derek, Lukac, Martin, Naik, Vinayak S, Kaiser, W J, Kohler, Monica, Govindan, Ramesh, ...
CENS research related to developing and implementing structural health monitoring (SHM) systems is advancing on two distinct but related fronts; ShakeNet, a portable wireless sensor network for...
Context-aware, Energy-aware Sensing of Physiological Signals (2007)
Au, Lawrence, Wu, Winston, Batalin, Maxim, McIntire, Dustin, Kaiser, W J
Recent advancement in microsensor technology permits miniaturization of conventional physiological sensors. Combined with low-power, energy-aware embedded systems and low power wireless interfaces,...
Design and Deployment of Services in Tiered Sensor Networks (2007)
Dantu, Karthik, McIntire, Dustin, Stathopoulos, Thanos, Au, Lawrence, Sukhatme, Gaurav, Kaiser, W J
Tiered sensor networks are gaining currency. We propose a mathematical optimization based algorithm to compose data-fusion services in sensor networks with a decomposition technique to effectively...
The Low Power Energy Aware Processing (LEAP) Embedded Networked Sensor System (2007)
McIntire, Dustin, Au, Lawrence, Chow, Timothy, Dantu, Karthik, Shah, Mansi, Stathopoulos, Thanos, ...
A broad range of embedded networked sensor (ENS) systems for critical environmental monitoring applications now require complex, high peak power dissipating sensor devices, as well as on-demand high...
The Low Power Energy Aware Processing (LEAP) Software Applications (2007)
McIntire, Dustin, Au, Lawrence, Chow, Timothy, Dantu, Karthik, Shah, Mansi, Stathopoulos, Thanos, ...
A broad range of embedded networked sensor (ENS) systems for critical environmental monitoring applications now require complex, high peak power dissipating sensor devices, as well as on-demand high...
Fisher, Jason, Pai, Henry, Butler, Chris, Ratko, Alex, Villamizar Amaya, Sandra, Singh, Amarjeet, ...
Distributed hydraulic and water quality property characterization aides in understanding a broad range of river issues including confluence and discharge mixing phenomena, groundwater-surface water...
Human Assisted Robotic Team Campaigns for Aquatic Monitoring (2007)
Singh, Amarjeet, Batalin, Maxim, Stealey, Michael, Zhang, Bin, Dhariwal, Amit, Stauffer, Beth, ...
Large-scale environmental sensing, e.g., understanding microbial processes in an aquatic ecosystem, requires coordination across a multidisciplinary team of experts working closely with a robotic...
Mobile Robot Sensing for Environmental Applications (2007)
Singh, Amarjeet, Batalin, Maxim, Stealey, Michael, Chen, Victor, Hansen, Mark, Harmon, T C, ...
This paper reports the first application of iterative experimental design methodology for high spatiotemporal resolution characterization of river and lake aquatic systems performed using mobile...
Autonomous Robotic Sensing Experiments at San Joaquin River (2007)
Singh, Amarjeet, Batalin, Maxim, Chen, Victor, Stealey, Michael, Jordan, Brett, Fisher, Jason, ...
Distributed, high-density spatiotemporal observations are proposed for answering many river related questions, including those pertaining to hydraulics and multi-dimensional river modeling,...
New Approaches in Embedded Networked Sensing for Terrestrial Ecological Observatories (2007)
Hamilton, Michael, Graham, Eric, Rundel, Phil, Allen, Michael F., Kaiser, W J, Hansen, Mark, ...
Ecological observatories are a new class of multiuser research infrastructure designed and deployed to address a broad range of continental-scale ecological questions that until only recently were...
Distrbuted Sensing Systems for Water Quality Assesment and Management (2007)
Goldman, Jeff, Ramanathan, Nithya, Ambrose, Richard F, Caron, David, Estrin, D, Fisher, Jason, ...
The exponential progress of technology development, driven in many cases by Moore's Law, has enabled the combination of sensing, computation and wireless communication in small, low-power devices...
Multiscale Sensing: A New Paradigm for Actuated Sensing of High Frequency Dynamic Phenomena (2007)
Singh, Amarjeet, Budzik, Diane, Chen, Willie, Batalin, Maxim, Kaiser, W J
Many environmental applications require high temporal frequency (rapidly changing) and spatially distributed phenomena to be sampled with high fidelity. This requires mobile sensing elements to...
Harmon, T C, Ambrose, Richard F, Gilbert, Robert, Fisher, Jason, Stealey, Michael, Kaiser, W J
Increasing demands on water supplies, along with concerns about non-point source pollution, and water quality-based ecological factors all point to the need for observing stream flow perturbations...
Efficient Planning of Informative Paths for Multiple Robots (2006)
Singh, Amarjeet, Krause, Andreas R., Guestrin, Carlos, Kaiser, W J, Batalin, Maxim
In many sensing applications, including environmental monitoring, measurement systems must cover a large space with only limited sensing resources. One approach to achieve required sensing coverage...
Adair, Robert., Johnson, R. C. (Richard C.), Hellier, Barbara., Kaiser, W. J.
Native Plants Journal - Volume 7, Number 2, Summer 2006
Directional Radio Propagation Measurements for Near-Ground Peer-to-Peer Networks, (2006)
Browne, David W., Loo, Chris, Ha, Jesen, Borgstrom, Henrik, Fitz, M P, Kaiser, W J, ...
This demonstration will present a radio testbed that is being used to characterize the quality of directional peer-to-peer wireless communications in wilderness environments.
Fisher, Jason, Harmon, T C, Kaiser, W J
Increasing demands on water supplies, non-point source pollution, and water quality-based ecological concerns all point to the need for observing stream flow perturbations and pollutant discharges at...
Designing Wireless Sensor Networks as a Shared Resource for Sustainable Development (2006)
Ramanathan, Nithya, Balzano, Laura, Estrin, D, Hansen, Mark, Harmon, T C, Jay, J A, ...
Wireless sensor networks (WSNs) are a relatively new and rapidly developing technology; they have a wide range of applications including environmental monitoring, agriculture, and public health....
Task Allocation for Event-Aware Spatiotemporal Sampling of Environmental Variables (2005)
Batalin, Maxim, Kaiser, W J, Pon, Richard, Sukhatme, Gaurav, Pottie, Gregory, Yu, Yan, ...
Monitoring of environmental phenomena with embedded networked sensing confronts the challenges of both unpredictable variability in the spatial distribution of phenomena, coupled with demands for a...
Adaptive sampling for environmental field estimation using robotic sensors (2005)
Rahimi, Mohammed, Hansen, Mark, Kaiser, W J, Sukhatme, Gaurav, Estrin, D
Monitoring environmental phenomena by distributed sensor sampling confronts the challenge of unpredictable variability in the spatial distribution of phenomena often coupled with demands for a high...
Networked Infomechanical Systems: A Mobile Embedded Networked Sensor Platform (2005)
Pon, Richard, Rahimi, Mohammed, Hansen, Mark, Kaiser, W J, Pottie, Gregory, Srivastava, Mani B, ...
Coordinated Static and Mobile Sensing for Environmental Monitoring (2005)
Pon, Richard, Batalin, Maxim, Chen, Victor, Kansal, Aman, Liu, Duo, Rahimi, Mohammed, ...
Distributed embedded sensor networks are now being successfully deployed in environmental monitoring of natural phenomena as well as for applications in commerce and physical security. While...
Ballistic-Electron-Emission Microscopy of Strained Sil-xGex Layers (2004)
Milliken, A. M., Bell, L. D., Manion, S. J., Kaiser, W. J., Fathauer, R. W., Pike, W. T.
Ballistic-electron-emission microscopy has been used to investigate the effects of strain on Sil-xGex alloys. Lifting of the degeneracy of the conduction-band minimum of SiGe due to lattice...
BEEM Characterization of Band Structure and Hot Carrier Transport in SiGe Heterostructures (2004)
Bell, L. D., Milliken, A. M., Manion, S. J., Fathauer, R. W., Kaiser, W. J., Hecht, M. H., ...
The electronic Structure and Properties of SiGe are important in determining the characteristics of many new hot-carrier devices, including the heterostructure bipolar transistor.
Micromachined Tunneling Displacement Transducers for Physical Sensors (2004)
Kenny, T. W., Kaiser, W. J., Podosek, J. A., Rockstad, H. K., Reynolds, J. K., Vote, E. C.
We have designed and constructed a series of tunneling sensors which take advantage of the extreme position sensitivity of electron tunneling. In these sensors, a tunneling displacement transducer,...
Microinstruments for a Low Power, Low Mass Weather Station (2004)
Hoenk, M.E., Zandt, T.R. Van, Kaiser, W.J., Crisp, D., Tillman, J.
Advances in electronics and instrument technology over the past thirty years have enabled a new concept for NASA missions, an evolution from large Voyager-class spacecraft to smaller, less costly...
(abstract) A Broad-Band Microseismometer for Planetary Applications (2004)
Banerdt, W.B., VanZandt, T., Kaiser, W.J., Kenny, T.W.
There has recently been renewed interest in the development of instrumentation for making measurements on the surface of Mars. This is due to the Mars Environmental Survey (MESUR) Mission, for which...
Bell, L.D., Grunthaner, F.J., Hecht, M.H., Manion, S.J., Milliken, A.M., Kaiser, W.J.
Semiconductor interface properties are among the most important phenomena in materials science and technology. The study of metal/semiconductor Schottky barrier interfaces has been the primary focus...
Ballistic Electron Emission Microscopy of Metal/Group IV Interfaces (2004)
Hecht, M. H., Kaiser, W. J., Bell, L. D., Fathauer, R., Manion, S. J.
Ballistic electron emission microscopy and spectroscopy, together with related techniques, have been applied with great success to the study of buried interfaces. These probes, known collectively as...
Beem Spectroscopy of Electron Transport Through A1As/GaAs Heterostructures (2004)
Kaiser, W. J., Hecht, M. E., Bell, L. D., Grunthaner, F. J., Davis, L. C.
BEEM spectroscopy has been used to characterize hot carrier transport through A1As/GaAsheterostructures. The dependence of electron transmission on A1As thickness has been directlymeasured, and the...
Capacitive Edge Sensor Design for Selene Segmented Primary Mirror (2004)
Miller, L. M., Kaiser, W. J., Kenny, T., VanZandt, T.
The objective of this project is to produce a proof-of-concept demonstration of an edge sensor for the Space Laser Energy (SELENE) program. In the SELENE telescope, the primary mirror design sonsists...
Ballistic-Electron-Emission Microscopy: A Nanometer-Scale Probe of Interfaces (2004)
The investigation of semiconductor interfaces is complicated by their
A Packaged Silicon MEMS Vibratory Gyroscope for Microspacecraft (2004)
Tang, T. K., Gutierrez, R. C., Stell, C. B., Vorperian, V., Arakaki, G. A., Rice, J. T., ...
In this paper, we present recent work on the design, fabrication, and packaging of a silicon MIcro-Electro-Mechanical System (MEMS) microgyroscope designed for space applications. A hermetically...
Silicon Bulk Micromachined Vibratory Gyroscope (2004)
Tang, T. K., Gutierrez, R. C., Wilcox, J. Z., Stell, C., Vorperian, V., Calvet, R., ...
This paper reports on design, modeling, fabrication, and characterization of a novel silicon bulk micromachined vibratory rate gyroscope designed for microspacecraft applications. The new...
A ??gnetometer Based on Electron Tunneling (2004)
Miller, L. M., Podosek, J. A., Kruglick, E., Kenny, T. W., Kovacich, J. A., Kaiser, W. J.
In this paper, a working prototype of a ??gnetometer based on electron tunneling is described.
Micro Inertial Reference System for Microspacecraft (2004)
Tang, T. K., Gutierrez, R. C., Stell, C. B., Vorperian, V., Shcheglov, K., Miller, L. M., ...
This paper reports on the development of a silicon bulk micromachined vibratory gyroscope designed for a micro inertial reference system for microspacecraft applications.
Controlled Mobility for Sustainable Wireless Networks (2004)
Kansal, Aman, Rahimi, Mohammed, Kaiser, W J, Srivastava, Mani B, Pottie, Gregory, Estrin, D
A key challenge in sensor networks is ensuring the sustainability of the system at the required performance level, in an autonomous manner. Sustainability is a major concern because of severe...
Call and Response: Experiments in Sampling the Environment (2004)
Batalin, Maxim, Rahimi, Mohammed, Yu, Yan, Liu, Duo, Kansal, Aman, Sukhatme, Gaurav, ...
Monitoring of environmental phenomena with embedded networked sensing confronts the challenges of both unpredictable variability in the spatial distribution of phenomena, coupled with demands for a...
Adaptive Sampling for Environmental Field Estimation Using Robotic Sensors (2004)
Rahimi, Mohammed, Hansen, Mark, Kaiser, W J, Sukhatme, Gaurav, Estrin, D
Monitoring environmental phenomena by distributed sensor sampling confronts the challenge of unpredictable variability in the spatial distribution of phenomena often coupled with demands for a high...
Self-Aware Distributed Embedded Systems (2004)
Pon, Richard, Batalin, Maxim, Rahimi, Mohammed, Yu, Yan, Estrin, D, Pottie, Gregory, ...
Distributed embedded sensor networks are now being successfully deployed in environmental monitoring of natural phenomena as well as for applications in commerce and physical security. Distributed...
Adaptive Sampling for Environmental Robotics (2004)
Rahimi, Mohammed, Pon, Richard, Estrin, D, Kaiser, W J, Srivastava, Mani B
Towards Event-Aware Adaptive Sampling Using Static and Mobile Nodes (2004)
M. A. Batalin, M. Rahimi, Y.Yu, D.Liu, A.Kansal, G.S. Sukhatme, ...
Sensing Uncertainty Reduction Using Low Complexity Actuation (2003)
Kansal, Aman, Yuen, Eric, Kaiser, W J, Pottie, Gregory, Srivastava, Mani B
The performance of a sensor network may be best judged by the quality of application specific information return. The actual sensing performance of a deployed sensor network depends on several...
A High-Sensitivity Broad-Band Accelerometer On Electron (1997)
Howard K, T. W. Kenny, J. K. Reynolds, W. J. Kaiser, Thomas B
New high-sensitivity have been developed using high-resolution position sensors based on electron tunneling. Design of miniature accelerometers having sensitivities approaching 10-9 is discussed, A...
L. D. Bell, W. J. Kaiser, W. T. Pike
This paper describes the application of ballistic-electron-emission (BEEM) to an investigation of strain in 00) structures. layers maybe grown on Si substrates provided the layers remain thinner than...
Superconducting phonon spectroscopy using a low-temperature scanning tunneling microscope (1989)
LeDuc, H. G., Kaiser, W. J., Hunt, B. D., Bell, L. D., Jaklevic, R. C., Youngquist, M. G.
We report the first observation of phonon density of states effects in a superconductor using a low-temperature scanning tunneling microscope (STM). The phonon effects were observed using a STM...
"Oxide-free" tip for scanning tunneling microscopy (1987)
Colton, R. J., Baker, S. M., Baldeschwieler, J. D., Kaiser, W. J.
We report a new tip for scanning tunneling microscopy and a tip repair procedure that allows one to reproducibly obtain atomic images of highly oriented pyrolytic graphite with previously inoperable...
Wireless Integrated Network Sensors: Low Power Systems on a Chip (1970)
G. Asada, M. Dong, T. S. Lin, F. Newberg, G. Pottie, W. J. Kaiser, ...
Wireless Integrated Network Sensors (WINS) now provide a new monitoring and control capability for transportation, manufacturing, health care, environmental monitoring, and safety and security. WINS...