Sample records for false alarm mitigation

  1. False alarm mitigation techniques for hyperspectral target detection

    NASA Astrophysics Data System (ADS)

    Pieper, M. L.; Manolakis, D.; Truslow, E.; Cooley, T.; Brueggeman, M.

    2013-05-01

    A challenging problem of major importance in hyperspectral imaging applications is the detection of subpixel objects of military and civilian interest. High false alarm thresholds are required to detect subpixel objects due to the large amount of surrounding background clutter. These high false alarm rates are unacceptable for military purposes, requiring the need for false alarm mitigation (FAM) techniques to weed out the objects of interest. The objective of this paper is to provide a comparison of the implementation of these FAM techniques and their inherent benefits in the whitened detection space. The widely utilized matched filter (MF) and adaptive cosine estimator (ACE) are both based on a linear mixing model (LMM) between a background and object class. The matched filter approximates the object abundance, and the ACE measures the model error. Each of these measurements provides inadequate object separation alone, but by using both the object abundance and model error, the objects can be separated from the false alarms.

  2. Sun-glint false alarm mitigation in a maritime scenario

    NASA Astrophysics Data System (ADS)

    Rossi, Alessandro; Riccobono, Aldo; Landini, Stefano

    2014-10-01

    Airborne hyperspectral imaging can be exploited to detect anomalous objects in the maritime scenario. Due to the objects high contrast with respect to the sea surface, detection can be easily accomplished by means of local anomaly detectors, such as the well-known Reed-Xiaoli (RX) algorithm. During the development of a real-time system for the detection of anomalous pixels, it has been noticed that the performance of detection is deeply affected by the presence of sun-glint. The reflection on the sea surface of the solar radiation produces a high density of alarms, that makes challenging the task of detecting the objects of interest. In this paper, it is introduced a strategy aimed at discriminating the sun-glint false alarms from the effective alarms related to targets of potential interest. False alarms due to glint are mitigated performing a local spatio-spectral analysis on each alarm furnished by the anomaly detector. The technique has been tested on hyperspectral images collected during a measurement campaign carried out near Pisa, Italy. The Selex ES SIMGA hyperspectral sensor was mounted on board of an airplane to collect high spectral resolution images in both the VNIR and SWIR spectral channels. Several experiments were carried out, setting up scenarios with small man-made objects deployed on the sea surface, so as to simulate search and rescue operations. The results have highlighted the effectiveness of the proposed solution in terms of mitigation of false alarms due to sun-glints on the maritime scenario.

  3. The impact of false alarm mitigation on surface landmine detection in MWIR imagery

    Microsoft Academic Search

    R. Joe Stanley; Sanjeev Agarwal; Satish Somanchi

    2004-01-01

    Surface landmine and minefield detection from airborne imagery is a difficult problem. As part of the minefield detection process, anomaly detection is performed to identify potential landmines in individual airborne images. Post-processing is performed on the initial landmines identified to reduce the number of false alarms, referred to as false alarm mitigation. In this research, a circular harmonics transform image

  4. Control of ELT false alarms

    NASA Technical Reports Server (NTRS)

    Toth, S.; Gershkoff, I.

    1979-01-01

    The statistics of emergency locator transmitter (ELT) alarms are presented. The primary sources of data include ELT Incident Logs, Service Difficulty Reports, and Frequency Interference Reports. The number of reported and unreported alarms is discussed, as are seasonal variations, duration of ELT transmissions, and cost of silencing. Origin, causes, and possible strategies for reducing the impact of alarms on the aviation community are considered.

  5. Collection and evaluation of false alarm signatures in background data

    NASA Astrophysics Data System (ADS)

    Agarwal, Sanjeev; Vulli, Shivakar; Malloy, Neil J.; Lord, Elizabeth M.; Fairley, Josh R.; Sabol, Bruce M.; Johnson, Wesley; Ess, Richard; Trang, Anh H.

    2009-05-01

    A significant amount of background airborne data was collected as part of May 2005 tests for airborne minefield detection at an arid site. The locations of false alarms which occurred consistently during different runs, were identified and geo-referenced by MultiSensor Science LLC. Ground truth information, which included pictures, type qualifiers and some hyperspectral data for these identified false alarm locations, was surveyed by ERDC-WES. This collection of background data, and subsequent survey of the false alarm locations, is unique in that it is likely the first such airborne data collection with ground truthed and documented false alarm locations. A library of signatures for different sources of these false alarms was extracted in the form of image chips and organized into a self-contained database by Missouri S&T. The library contains target chips from airborne mid wave infrared (MWIR) and multispectral imaging (MSI) sensors, representing data for different days, different times of day and different altitudes. Target chips for different surface mines were also added to the database. This database of the target signatures is expected to facilitate evaluation of spectral and shape characteristics of the false alarms, to achieve better false alarm mitigation and improve mine and minefield detection for airborne applications. The aim of this paper is to review and summarize the data collection procedure used, present the currently available database of target chips and make some recommendations regarding future data collections.

  6. False-alarm characterization in hyperspectral gas-detection applications

    NASA Astrophysics Data System (ADS)

    DiPietro, Robert S.; Truslow, Eric; Manolakis, Dimitris G.; Golowich, Steven E.; Lockwood, Ronald B.

    2012-09-01

    Chemical cloud detection using long-wave infrared (LWIR) hyperspectral-imaging sensors has many civilian and military applications, including chemical warfare threat mitigation, environmental monitoring, and emergency response. Current capabilities are limited by variation in background clutter as opposed to the physics of photon detection, and this makes the statistical characterization of clutter and clutter-induced false alarms essential to the design of practical systems. In this exploratory work, we use hyperspectral data collected both on the ground and in the air to spectrally and spatially characterize false alarms. Focusing on two widely-used detectors, the matched filter (MF) and the adaptive cosine estimator (ACE), we compare empirical false-alarm rates to their theoretical counterparts - detector output under Gaussian, t and t-mixture distributed data - and show that these models often underestimate false-alarm rates. Next, we threshold real detection maps and show that true detections and false alarms often exhibit very different spatial behavior. To exploit this difference and understand how spatial processing affects performance, the spatial behavior of false alarms must be understood. We take a first step in this direction by showing that, although the behavior may `look' quite random, it is not well captured by the complete-spatial-randomness model. Finally, we describe how our findings impact the design of real detection systems.

  7. False Fire Alarms: A Deviant Pattern of Seeking Help.

    ERIC Educational Resources Information Center

    Camblin, Louise; Weinland, Laura

    1987-01-01

    Discusses the phenomenon of false fire alarms, the deliberate, intentional false reporting of fires, by mentally troubled persons as a primitive kind of help-seeking behavior. Several common themes found by reviewing false alarm cases are presented. Suggests that identifying the intrapsychic dynamics of false alarm reporters could be useful in…

  8. Incorporation of false alarms in simulations of electronic receivers

    Microsoft Academic Search

    V. P. Sobczynski; C. J. Pearson

    1973-01-01

    A simple method for simulating false alarms in simulations of electronic receivers is developed. False alarms are an important part of electronic receivers and previously their generation was computationally complex because of their random nature and very small probability of occurrence. The approach derives the probability density function of the time between false alarms and shows how, for typical values

  9. HOME INSECURITY: NO ALARMS, FALSE ALARMS, AND SIGINT

    SciTech Connect

    Lamb, Logan M [ORNL

    2014-01-01

    The market share of home security systems has substantially increased as vendors incorporate more desirable features: intrusion detection, automation, wireless, and LCD touch panel controls. Wireless connectivity allows vendors to manufacture cheaper, more featureful products that require little to no home modification to install. Consumer win, since adding devices is easier. The result: an ostensibly more secure, convenient, and connected home for a larger number of citizens. Sadly, this hypothesis is flawed; the idea of covering a home with more security sensors does not translate into a more secure home. Additionally, the number of homes using these vulnerable systems is large, and the growth rate is increasing producing a even larger problem. In this talk, I will demonstrate a generalized approach for compromising three systems: ADT, the largest home security dealer in North America; Honeywell, one of the largest manufacturers of security devices; and Vivint, a top 5 security dealer. We will suppress alarms, create false alarms, and collect artifacts that facilitate tracking the movements of individuals in their homes.

  10. Collection and evaluation of false alarm signatures in background data

    Microsoft Academic Search

    Sanjeev Agarwal; Shivakar Vulli; Neil J. Malloy; Elizabeth M. Lord; Josh R. Fairley; Bruce M. Sabol; Wesley Johnson; Richard Ess; Anh H. Trang

    2009-01-01

    A significant amount of background airborne data was collected as part of May 2005 tests for airborne minefield detection at an arid site. The locations of false alarms which occurred consistently during different runs, were identified and geo-referenced by MultiSensor Science LLC. Ground truth information, which included pictures, type qualifiers and some hyperspectral data for these identified false alarm locations,

  11. Reducing False Intracranial Pressure Alarms using Morphological Waveform Features

    PubMed Central

    Scalzo, Fabien; Liebeskind, David; Hu, Xiao

    2013-01-01

    False alarms produced by patient monitoring systems in intensive care units (ICU) are a major issue that causes alarm fatigue, waste of human resources, and increased patient risks. While alarms are typically triggered by manually adjusted thresholds, the trend and patterns observed prior to threshold crossing are generally not used by current systems. This study introduces and evaluates a smart alarm detection system for intracranial pressure signal (ICP) that is based on advanced pattern recognition methods. Models are trained in a supervised fashion from a comprehensive dataset of 4791 manually labelled alarm episodes extracted from 108 neurosurgical patients. The comparative analysis provided between spectral regression, kernel spectral regression, and support vector machines indicates the significant improvement of the proposed framework in detecting false ICP alarms in comparison to a threshold-based technique that is conventionally used. Another contribution of this work is to exploit an adaptive discretization to reduce the dimensionality of the input features. The resulting features lead to a decrease of 30% of false ICP alarms without compromising sensitivity. PMID:22851230

  12. Intelligent method of reducing BIT's false alarm based on SVM_FCA_HMM

    Microsoft Academic Search

    Sun Ping; Zhang Wenjin

    2011-01-01

    BIT's false alarm is one of the most important reasons of restricting testability's development. In order to decrease BIT's false alarm and develop BITE's performance, this paper discusses present situation of BIT's false alarm at first, then introduces several advanced models of reducing false alarm which are neural network, support vector machine, fuzzy clustering analysis and hidden Markov model. After

  13. The Cost of False Alarms in Hellman and Rainbow Tradeoffs

    E-print Network

    and the rainbow table method in a manner that takes false alarms into account. We also analyze the effects pre- computation process. Keywords time memory tradeoff, Hellman, rainbow table, checkpoint- tion by 50% at the most. On the other hand, the paper presenting the rainbow table method [16], which

  14. Panic, Suffocation False Alarms, Separation Anxiety and Endogenous Opioids

    PubMed Central

    Preter, Maurice; Klein, Donald F.

    2008-01-01

    This review paper presents an amplification of the suffocation false alarm theory (SFA) of spontaneous panic (Klein, 1993). SFA postulates the existence of an evolved physiologic suffocation alarm system that monitors information about potential suffocation. Panic attacks maladaptively occur when the alarm is erroneously triggered. That panic is distinct from Cannon’s emergency fear response and Selye’s General Alarm Syndrome is shown by the prominence of intense air hunger during these attacks. Further, panic sufferers have chronic sighing abnormalities outside of the acute attack. Another basic physiologic distinction between fear and panic is the counter-intuitive lack of hypothalamic-pituitary-adrenal (HPA) activation in panic. Understanding panic as provoked by indicators of potential suffocation, such as fluctuations in pCO2 and brain lactate, as well as environmental circumstances fits the observed respiratory abnormalities. However, that sudden loss, bereavement and childhood separation anxiety are also antecedents of “spontaneous” panic requires an integrative explanation. Because of the opioid system’s central regulatory role in both disordered breathing and separation distress, we detail the role of opioidergic dysfunction in decreasing the suffocation alarm threshold. We present results from our laboratory where the naloxone-lactate challenge in normals produces supportive evidence for the endorphinergic defect hypothesis in the form of a distress episode of specific tidal volume hyperventilation paralleling challenge-produced and clinical panic. PMID:17765379

  15. Gunshot acoustic signature specific features and false alarms reduction

    NASA Astrophysics Data System (ADS)

    Donzier, Alain; Millet, Joel

    2005-05-01

    This paper provides a detailed analysis of the most specific parameters of gunshot signatures through models as well as through real data. The models for the different contributions to gunshot typical signature (shock and muzzle blast) are presented and used to discuss the variation of measured signatures over the different environmental conditions and shot configurations. The analysis is followed by a description of the performance requirements for gunshot detection systems, from sniper detection that was the main concern 10 years ago, to the new and more challenging conditions faced in today operations. The work presented examines the process of how systems are deployed and used as well as how the operational environment has changed. The main sources of false alarms and new threats such as RPGs and mortars that acoustic gunshot detection systems have to face today are also defined and discussed. Finally, different strategies for reducing false alarms are proposed based on the acoustic signatures. Different strategies are presented through various examples of specific missions ranging from vehicle protection to area protection. These strategies not only include recommendation on how to handle acoustic information for the best efficiency of the acoustic detector but also recommends some add-on sensors to enhance system overall performance.

  16. False alarm recognition in hyperspectral gas plume identification

    DOEpatents

    Conger, James L. (San Ramon, CA); Lawson, Janice K. (Tracy, CA); Aimonetti, William D. (Livermore, CA)

    2011-03-29

    According to one embodiment, a method for analyzing hyperspectral data includes collecting first hyperspectral data of a scene using a hyperspectral imager during a no-gas period and analyzing the first hyperspectral data using one or more gas plume detection logics. The gas plume detection logic is executed using a low detection threshold, and detects each occurrence of an observed hyperspectral signature. The method also includes generating a histogram for all occurrences of each observed hyperspectral signature which is detected using the gas plume detection logic, and determining a probability of false alarm (PFA) for all occurrences of each observed hyperspectral signature based on the histogram. Possibly at some other time, the method includes collecting second hyperspectral data, and analyzing the second hyperspectral data using the one or more gas plume detection logics and the PFA to determine if any gas is present. Other systems and methods are also included.

  17. ESTIMATING THE PROBABILITY OF FALSE ALARM FOR A ZERO-BIT WATERMARKING TECHNIQUE

    E-print Network

    Paris-Sud XI, Université de

    ESTIMATING THE PROBABILITY OF FALSE ALARM FOR A ZERO-BIT WATERMARKING TECHNIQUE T. Furon Thomson is below a given significance level is a crucial issue in watermarking. We pro- pose an iterative and self. It even allows the experimental measurement of error exponents. Index Terms-- Watermarking, False alarm

  18. False alarm reduction in BSN-based cardiac monitoring using signal quality and activity type information.

    PubMed

    Tanantong, Tanatorn; Nantajeewarawat, Ekawit; Thiemjarus, Surapa

    2015-01-01

    False alarms in cardiac monitoring affect the quality of medical care, impacting on both patients and healthcare providers. In continuous cardiac monitoring using wireless Body Sensor Networks (BSNs), the quality of ECG signals can be deteriorated owing to several factors, e.g., noises, low battery power, and network transmission problems, often resulting in high false alarm rates. In addition, body movements occurring from activities of daily living (ADLs) can also create false alarms. This paper presents a two-phase framework for false arrhythmia alarm reduction in continuous cardiac monitoring, using signals from an ECG sensor and a 3D accelerometer. In the first phase, classification models constructed using machine learning algorithms are used for labeling input signals. ECG signals are labeled with heartbeat types and signal quality levels, while 3D acceleration signals are labeled with ADL types. In the second phase, a rule-based expert system is used for combining classification results in order to determine whether arrhythmia alarms should be accepted or suppressed. The proposed framework was validated on datasets acquired using BSNs and the MIT-BIH arrhythmia database. For the BSN dataset, acceleration and ECG signals were collected from 10 young and 10 elderly subjects while they were performing ADLs. The framework reduced the false alarm rate from 9.58% to 1.43% in our experimental study, showing that it can potentially assist physicians in diagnosing a vast amount of data acquired from wireless sensors and enhance the performance of continuous cardiac monitoring. PMID:25671512

  19. Negative feedback from maternal signals reduces false alarms by collectively signalling offspring

    PubMed Central

    Hamel, Jennifer A.; Cocroft, Reginald B.

    2012-01-01

    Within animal groups, individuals can learn of a predator's approach by attending to the behaviour of others. This use of social information increases an individual's perceptual range, but can also lead to the propagation of false alarms. Error copying is especially likely in species that signal collectively, because the coordination required for collective displays relies heavily on social information. Recent evidence suggests that collective behaviour in animals is, in part, regulated by negative feedback. Negative feedback may reduce false alarms by collectively signalling animals, but this possibility has not yet been tested. We tested the hypothesis that negative feedback increases the accuracy of collective signalling by reducing the production of false alarms. In the treehopper Umbonia crassicornis, clustered offspring produce collective signals during predator attacks, advertising the predator's location to the defending mother. Mothers signal after evicting the predator, and we show that this maternal communication reduces false alarms by offspring. We suggest that maternal signals elevate offspring signalling thresholds. This is, to our knowledge, the first study to show that negative feedback can reduce false alarms by collectively behaving groups. PMID:22787019

  20. Improved detection and false alarm rejection for chemical vapors using passive hyperspectral imaging

    NASA Astrophysics Data System (ADS)

    Marinelli, William J.; Miyashiro, Rex; Gittins, Christopher M.; Konno, Daisei; Chang, Shing; Farr, Matt; Perkins, Brad

    2013-05-01

    Two AIRIS sensors were tested at Dugway Proving Grounds against chemical agent vapor simulants. The primary objectives of the test were to: 1) assess performance of algorithm improvements designed to reduce false alarm rates with a special emphasis on solar effects, and 3) evaluate performance in target detection at 5 km. The tests included 66 total releases comprising alternating 120 kg glacial acetic acid (GAA) and 60 kg triethyl phosphate (TEP) events. The AIRIS sensors had common algorithms, detection thresholds, and sensor parameters. The sensors used the target set defined for the Joint Service Lightweight Chemical Agent Detector (JSLSCAD) with TEP substituted for GA and GAA substituted for VX. They were exercised at two sites located at either 3 km or 5 km from the release point. Data from the tests will be presented showing that: 1) excellent detection capability was obtained at both ranges with significantly shorter alarm times at 5 km, 2) inter-sensor comparison revealed very comparable performance, 3) false alarm rates < 1 incident per 10 hours running time over 143 hours of sensor operations were achieved, 4) algorithm improvements eliminated both solar and cloud false alarms. The algorithms enabling the improved false alarm rejection will be discussed. The sensor technology has recently been extended to address the problem of detection of liquid and solid chemical agents and toxic industrial chemical on surfaces. The phenomenology and applicability of passive infrared hyperspectral imaging to this problem will be discussed and demonstrated.

  1. Advanced Signal Processing for Reduction of False Alarm Rate of Metal Detectors for Humanitarian Mine Clearance

    Microsoft Academic Search

    H. Krueger; H. Ewald; T. Fechner; S. Bergeler

    2006-01-01

    Today for clearing areas from landmines, beside dogs and searching needles, almost excluding metal detectors are used. Available metal detectors, specialised for mine clearance, are highly sensitive also on small metal parts. Nevertheless, they give no further information about the buried object (depth, size, shape, material). Besides, the high false alarm rate of the hand-held detectors makes the mine clearance

  2. THE BOY WHO CRIED WOLF REVISITED: THE IMPACT OF FALSE ALARM INTOLERANCE ON

    E-print Network

    Stevenson, Paul

    THE BOY WHO CRIED WOLF REVISITED: THE IMPACT OF FALSE ALARM INTOLERANCE ON COST-LOSS SCENARIOS M's fable about the "The Boy who Cried Wolf", a young shepherd boy guarding the village flock cries. This event is repeated two or three times before a wolf actually does show up on the hillside. The boy cries

  3. New methods for reducing the number of false alarms in fire detection systems

    Microsoft Academic Search

    M. Thuillard

    1994-01-01

    In this paper, we present new methods of reducing the number of false alarms in smoke detectors and apply these methods to an ionization smoke detector. The detector is able to diagnose its working condition and its environment very precisely. When the detector's environment changes, the detector can automatically determine the cause, whether the change is fire-related or not. This

  4. False alarm demand: A new metric for measuring robot performance in human robot teams

    Microsoft Academic Search

    Mohan Rajesh Elara; Carlos A. Acosta Calderon; Changjiu Zhou; Wijerupage Sardha Wijesoma

    2009-01-01

    Performance of robots in human robot teams has always been a topic of interest for many researchers in human robot interaction community. Traditionally adopted Crandall's model for performance measurements assume ideal conditions in which the operator switches control between robots sequentially based on acceptable performance level ignoring any false alarms due to erroneous interactions. In this paper, we present the

  5. Alarm fatigue: a roadmap for mitigating the cacophony of beeps.

    PubMed

    Purbaugh, Thomas

    2014-01-01

    The phenomenon known as alarm fatigue is the direct result of excessive alarms in hospitals. This article highlights the effects of alarm fatigue and reviews current clinical recommendations and guidelines to raise nurse awareness and provide tools to combat the problem. PMID:24310707

  6. Signal quality and data fusion for false alarm reduction in the intensive care unit.

    PubMed

    Li, Qiao; Clifford, Gari D

    2012-01-01

    Due to a lack of integration between different sensors, false alarms (FA) in the intensive care unit (ICU) are frequent and can lead to reduced standard of care. We present a novel framework for FA reduction using a machine learning approach to combine up to 114 signal quality and physiological features extracted from the electrocardiogram, photoplethysmograph, and optionally the arterial blood pressure waveform. A machine learning algorithm was trained and evaluated on a database of 4107 expert-labeled life-threatening arrhythmias, from 182 separate ICU visits. On the independent test data, FA suppression results with no true alarm (TA) suppression were 86.4% for asystole, 100% for extreme bradycardia and 27.8% for extreme tachycardia. For the ventricular tachycardia alarms, the best FA suppression performance was 30.5% with a TA suppression rate below 1%. To reduce the TA suppression rate to zero, a reduction in FA suppression performance to 19.7% was required. PMID:22960167

  7. Reduction of false alarms in forest fire surveillance using water vapour concentration measurements

    NASA Astrophysics Data System (ADS)

    Bellecci, C.; De Leo, L.; Gaudio, P.; Gelfusa, M.; Lo Feudo, T.; Martellucci, S.; Richetta, M.

    2009-06-01

    In this work a theoretical model to evaluate the capabilities of our lidar system in forest fire detection is reported. In particular, a new idea of minimization of false alarm is shown. In a forest fire, in fact, a lot of ashes and in the first stage a large amount of water vapour are emitted. Measurements of water vapour increase with respect to standard humidity in the atmosphere due to a forest fire event, by means of Raman analysis, permit to minimize the false alarm. A simulation of one case of study permits to estimate the maximum range of detection and minimum sensibility of our lidar system. In this paper the theoretical results are shown.

  8. Experimenting False Alarm Demand for Human Robot Interactions in Humanoid Soccer Robots

    Microsoft Academic Search

    Rajesh Elara Mohan; Wijerupage Sardha Wijesoma; Carlos Antonio Acosta Calderon; Changjiu Zhou

    2009-01-01

    Performance of robots in human robot teams has always been a topic of interest for many researchers in human robot interaction\\u000a community. Traditionally adopted neglect tolerance model for performance measurements assume ideal conditions in which the\\u000a operator switches control between robots sequentially based on acceptable performance level for each robot ignoring any false\\u000a alarms due to erroneous interactions. In this

  9. False ventricular tachycardia alarm suppression in the ICU based on the discrete wavelet transform in the ECG signal.

    PubMed

    Salas-Boni, Rebeca; Bai, Yong; Harris, Patricia Rae Eileen; Drew, Barbara J; Hu, Xiao

    2014-01-01

    Over the past few years, reducing the number of false positive cardiac monitor alarms (FA) in the intensive care unit (ICU) has become an issue of the utmost importance. In our work, we developed a robust methodology that, without the need for additional non-ECG waveforms, suppresses false positive ventricular tachycardia (VT) alarms without resulting in false negative alarms. Our approach is based on features extracted from the ECG signal 20 seconds prior to a triggered alarm. We applied a multi resolution wavelet transform to the ECG data 20seconds prior to the alarm trigger, extracted features from appropriately chosen scales and combined them across all available leads. These representations are presented to a L1-regularized logistic regression classifier. Results are shown in two datasets of physiological waveforms with manually assessed cardiac monitor alarms: the MIMIC II dataset, where we achieved a false alarm (FA) suppression of 21% with zero true alarm (TA) suppression; and a dataset compiled by UCSF and General Electric, where a 36% FA suppression was achieved with a zero TA suppression. The methodology described in this work could be implemented to reduce the number of false monitor alarms in other arrhythmias. PMID:25172188

  10. A radar unattended ground sensor with micro-Doppler capabilities for false alarm reduction

    NASA Astrophysics Data System (ADS)

    Tahmoush, Dave; Silvious, Jerry; Burke, Ed

    2010-10-01

    Unattended ground sensors (UGS) provide the capability to inexpensively secure remote borders and other areas of interest. However, the presence of normal animal activity can often trigger a false alarm. Accurately detecting humans and distinguishing them from natural fauna is an important issue in security applications to reduce false alarm rates and improve the probability of detection. In particular, it is important to detect and classify people who are moving in remote locations and transmit back detections and analysis over extended periods at a low cost and with minimal maintenance. We developed and demonstrate a compact radar technology that is scalable to a variety of ultra-lightweight and low-power platforms for wide area persistent surveillance as an unattended, unmanned, and man-portable ground sensor. The radar uses micro-Doppler processing to characterize the tracks of moving targets and to then eliminate unimportant detections due to animals as well as characterize the activity of human detections. False alarms from sensors are a major liability that hinders widespread use. Incorporating rudimentary intelligence into sensors can reduce false alarms but can also result in a reduced probability of detection. Allowing an initial classification that can be updated with new observations and tracked over time provides a more robust framework for false alarm reduction at the cost of additional sensor observations. This paper explores these tradeoffs with a small radar sensor for border security. Multiple measurements were done to try to characterize the micro-Doppler of human versus animal and vehicular motion across a range of activities. Measurements were taken at the multiple sites with realistic but low levels of clutter. Animals move with a quadrupedal motion, which can be distinguished from the bipedal human motion. The micro-Doppler of a vehicle with rotating parts is also shown, along with ground truth images. Comparisons show large variations for different types of motion by the same type of animal. This paper presents the system and data on humans, vehicles, and animals at multiple angles and directions of motion, demonstrates the signal processing approach that makes the targets visually recognizable, verifies that the UGS radar has enough micro-Doppler capability to distinguish between humans, vehicles, and animals, and analyzes the probability of correct classification.

  11. False alarms and incorrect rejections in an information security center: correlation with the frequency of incidents.

    PubMed

    Bruno, Thiers; Abrahão, Julia

    2012-01-01

    This study examines the actions taken by operators aimed at preventing and combating information security incidents at a banking organization. The work utilizes the theoretical framework of ergonomics and cognitive psychology. The method is workplace ergonomic analysis. Its focus is directed towards examining the cognitive dimension of the work environment with special attention to the occurrence of correlations between variability in incident frequency and the results of sign detection actions. It categorizes 45,142 operator decisions according to the theory of signal detection (Sternberg, 2000). It analyzes the correlation between incident proportions (indirectly associated with the cognitive efforts demanded from the operator) and operator decisions. The study demonstrated the existence of a positive correlation between incident proportions and false positive decisions (false alarms). However, this correlation could not be observed in relation to decisions of the false-negative type (incorrect rejection). PMID:22317160

  12. False alarm reduction by the And-ing of multiple multivariate Gaussian classifiers

    NASA Astrophysics Data System (ADS)

    Dobeck, Gerald J.; Cobb, J. Tory

    2003-09-01

    The high-resolution sonar is one of the principal sensors used by the Navy to detect and classify sea mines in minehunting operations. For such sonar systems, substantial effort has been devoted to the development of automated detection and classification (D/C) algorithms. These have been spurred by several factors including (1) aids for operators to reduce work overload, (2) more optimal use of all available data, and (3) the introduction of unmanned minehunting systems. The environments where sea mines are typically laid (harbor areas, shipping lanes, and the littorals) give rise to many false alarms caused by natural, biologic, and man-made clutter. The objective of the automated D/C algorithms is to eliminate most of these false alarms while still maintaining a very high probability of mine detection and classification (PdPc). In recent years, the benefits of fusing the outputs of multiple D/C algorithms have been studied. We refer to this as Algorithm Fusion. The results have been remarkable, including reliable robustness to new environments. This paper describes a method for training several multivariate Gaussian classifiers such that their And-ing dramatically reduces false alarms while maintaining a high probability of classification. This training approach is referred to as the Focused- Training method. This work extends our 2001-2002 work where the Focused-Training method was used with three other types of classifiers: the Attractor-based K-Nearest Neighbor Neural Network (a type of radial-basis, probabilistic neural network), the Optimal Discrimination Filter Classifier (based linear discrimination theory), and the Quadratic Penalty Function Support Vector Machine (QPFSVM). Although our experience has been gained in the area of sea mine detection and classification, the principles described herein are general and can be applied to a wide range of pattern recognition and automatic target recognition (ATR) problems.

  13. Target attribute-based false alarm rejection in small infrared target detection

    NASA Astrophysics Data System (ADS)

    Kim, Sungho

    2012-11-01

    Infrared search and track is an important research area in military applications. Although there are a lot of works on small infrared target detection methods, we cannot apply them in real field due to high false alarm rate caused by clutters. This paper presents a novel target attribute extraction and machine learning-based target discrimination method. Eight kinds of target features are extracted and analyzed statistically. Learning-based classifiers such as SVM and Adaboost are developed and compared with conventional classifiers for real infrared images. In addition, the generalization capability is also inspected for various infrared clutters.

  14. Raman water vapour concentration measurements for reduction of false alarms in forest fire detection

    NASA Astrophysics Data System (ADS)

    Bellecci, C.; Gaudio, P.; Gelfusa, M.; Lo Feudo, T.; Malizia, A.; Richetta, M.; Ventura, P.

    2009-09-01

    Forest fires can be the cause of environmental catastrophe, with the natural outcomes of serious ecological and economic damages, together with the possibility to endanger human safety. At the aim to reduce this catastrophe several author have been shown that the Laser light scattering can be uses to reveals the particulate emitted in the smoke. Infact experimental and theoretical investigations have shown that lidar is a powerful tool to detect the tenuous smoke plumes produced by forest fires at an early stage. In early 90's Arbolino and Andreucci have shown the theoretical possibility to detect the particulate emitted in atmosphere from smoke forest fire. Vilar at all have shown experimentally the possibility to measure the density variation in atmosphere due to plume emitted in forest fire event. Gaudio at all. have already shown that it is possible to evaluate water vapor emitted in smoke of vegetable fuel using a CO2 dial system. In this paper a theoretical model to evaluate the capabilities of a lidar system in fire surveillance of wooded areas will be presented. In particular we intend propose a technique to minimizing the false alarm in the detection of forest fire by lidar based on a measurement of second components emitted in a combustion process. Usually to detect a fire alarm a rapid increase of aerosol amount is measured. If the backscattering signal report a peak, the presences of a forest fire will be probable. Our idea to confirm this hypothesis is measure the second components emitted in a forest fire at the aim to minimize the false alarm. The simulated measurements of the humidity amount within the smoke plume will be carried out by means of Raman analysis. Fixing the burning rate of the vegetable-fuels, the maximum range of detection will be evaluated.

  15. Reducing False Alarms of Intensive Care Online-Monitoring Systems: An Evaluation of Two Signal Extraction Algorithms

    PubMed Central

    Borowski, M.; Siebig, S.; Wrede, C.; Imhoff, M.

    2011-01-01

    Online-monitoring systems in intensive care are affected by a high rate of false threshold alarms. These are caused by irrelevant noise and outliers in the measured time series data. The high false alarm rates can be lowered by separating relevant signals from noise and outliers online, in such a way that signal estimations, instead of raw measurements, are compared to the alarm limits. This paper presents a clinical validation study for two recently developed online signal filters. The filters are based on robust repeated median regression in moving windows of varying width. Validation is done offline using a large annotated reference database. The performance criteria are sensitivity and the proportion of false alarms suppressed by the signal filters. PMID:21461385

  16. Building Ultra-Low False Alarm Rate Support Vector Classifier Ensembles Using Random Subspaces

    SciTech Connect

    Chen, B Y; Lemmond, T D; Hanley, W G

    2008-10-06

    This paper presents the Cost-Sensitive Random Subspace Support Vector Classifier (CS-RS-SVC), a new learning algorithm that combines random subspace sampling and bagging with Cost-Sensitive Support Vector Classifiers to more effectively address detection applications burdened by unequal misclassification requirements. When compared to its conventional, non-cost-sensitive counterpart on a two-class signal detection application, random subspace sampling is shown to very effectively leverage the additional flexibility offered by the Cost-Sensitive Support Vector Classifier, yielding a more than four-fold increase in the detection rate at a false alarm rate (FAR) of zero. Moreover, the CS-RS-SVC is shown to be fairly robust to constraints on the feature subspace dimensionality, enabling reductions in computation time of up to 82% with minimal performance degradation.

  17. False Alarms and Sensitivity of Conventional Pulse Oximetry Versus the Masimo SET??? Technology in the Pediatric Postanesthesia Care Unit

    Microsoft Academic Search

    Shobha Malviya; Paul I. Reynolds; Terri Voepel-Lewis; Monica Siewert; David Watson; Alan R. Tait; Kevin Tremper

    2000-01-01

    We compared the incidence and duration of false alarms (FA)and the sensitivity of conventional pulse oximetry (CPO) with Masimo Signal Extraction Tech- nology™ (Masimo SET™; Masimo Corporation, Irvine, CA) in children in the postanesthesia care unit. Dispos- able oximeter sensors were placed on separate digits of one extremity. Computerized acquisition of synchro- nous data included electrocardiograph heart rate, Spo2, and

  18. Method and apparatus for distinguishing actual sparse events from sparse event false alarms

    SciTech Connect

    Spalding, Richard E. (Albuquerque, NM); Grotbeck, Carter L. (Albuquerque, NM)

    2000-01-01

    Remote sensing method and apparatus wherein sparse optical events are distinguished from false events. "Ghost" images of actual optical phenomena are generated using an optical beam splitter and optics configured to direct split beams to a single sensor or segmented sensor. True optical signals are distinguished from false signals or noise based on whether the ghost image is presence or absent. The invention obviates the need for dual sensor systems to effect a false target detection capability, thus significantly reducing system complexity and cost.

  19. Application of a CO2 dial system for infrared detection of forest fire and reduction of false alarm

    NASA Astrophysics Data System (ADS)

    Bellecci, C.; Francucci, M.; Gaudio, P.; Gelfusa, M.; Martellucci, S.; Richetta, M.; Lo Feudo, T.

    2007-04-01

    Forest fires can be the cause of serious environmental and economic damages. For this reason considerable effort has been directed toward forest protection and fire fighting. The means traditionally used for early fire detection mainly consist in human observers dispersed over forest regions. A significant improvement in early warning capabilities could be obtained by using automatic detection apparatus. In order to early detect small forest fires and minimize false alarms, the use of a lidar system and dial technique will be considered. A first evaluation of the lowest detectable concentration will be estimated by numerical simulation. The theoretical model will also be used to get the capability of the dial system to control wooded areas. Fixing the burning rate for several fuels, the maximum range of detection will be evaluated. Finally results of simulations will be reported.

  20. Characteristics of optical fire detector false alarm sources and qualification test procedures to prove immunity, phase 2, volume 3: Appendix 2

    NASA Astrophysics Data System (ADS)

    Goedeke, A. D.; Gross, H. G.

    1995-05-01

    This study identified possible sources of UV, IR and visible radiations that may cause an optical fire detector to false alarm and/or affect its fire detection performance. The spectral irradiances of JP-4 pan fires and a multitude of lamps, hot bodies, and other of radiation stimuli that an optical detector may be exposed to in any type of aircraft shelter, hanger, facility, or ground location, were determined. Knowing the spectral irradiances of the required fire size and distance to be detected, it was then possible to determine at what distances would the potential false alarm source have to be to equal or exceed the fire's spectral irradiances in the 185nm - 250nm and 4.4lm bands. Considering the possible distance from detector to source, candidate false alarm sources were selected for detector immunity testing. Qualification test procedures were developed and tested. It was concluded that there are many possible false alarm sources and, if located too close to a detector, and the stimuli are modulated, most optical fire detectors would alarm.

  1. Do Pseudoword False Alarm Rates and Overestimation Rates in Yes/No Vocabulary Tests Change with Japanese University Students' English Ability Levels?

    ERIC Educational Resources Information Center

    Stubbe, Raymond

    2012-01-01

    "Pseudowords", or non-real words, were introduced to the Yes/No (YN) vocabulary test format to provide a means of checking for overestimation of word knowledge by test takers. The purpose of this study is to assess the assumption that more pseudoword checks (false alarms) indicate more instances of overestimation of word knowledge in YN tests.…

  2. Disseminated vaccinia false alarm.

    PubMed

    Peev, Milan; Weber, Steven G; Daum, Robert S; Garcia-Houchinss, Sylvia; Marcinak, John

    2003-10-01

    We report the case of a 6-year-old girl who presented in December 2002 with fever and a vesicular rash. Initially she was diagnosed with Stevens-Johnson syndrome. The differential diagnosis was expanded, however, when an exposure to a person who was believed to be vaccinated recently against smallpox was revealed. We describe the sequence of events that ensued and the workup for a possible case of disseminated virus. PMID:14579813

  3. Regionally based alarm index to mitigate ionospheric scintillation effects for GNSS receivers

    NASA Astrophysics Data System (ADS)

    Tiwari, R.; Strangeways, H. J.

    2015-01-01

    An approach to mitigate the effect of ionospheric scintillation on GNSS (Global Navigation Satellite System) users in the European region using TEC (total electron content) at 1 Hz rate is presented. The TEC in the study is derived using raw GPS (Global Positioning System) observations obtained from the EUREF networks. The study also presents derivation of a geographic mesh-map warning of the expected standard deviation of phase jitter in receiver carrier tracking loops, information which would help to mitigate scintillation effects in GPS software receivers.

  4. False-alarm probability in relation to over-sampled power spectra, with application to Super-Kamiokande solar neutrino data

    E-print Network

    Peter A. Sturrock; Jeffrey D. Scargle

    2010-06-03

    The term "false-alarm probability" denotes the probability that at least one out of M independent power values in a prescribed search band of a power spectrum computed from a white-noise time series is expected to be as large as or larger than a given value. The usual formula is based on the assumption that powers are distributed exponentially, as one expects for power measurements of normally distributed random noise. However, in practice one typically examines peaks in an over-sampled power spectrum. It is therefore more appropriate to compare the strength of a particular peak with the distribution of peaks in over-sampled power spectra derived from normally distributed random noise. We show that this leads to a formula for the false-alarm probability that is more conservative than the familiar formula. We also show how to combine these results with a Bayesian method for estimating the probability of the null hypothesis (that there is no oscillation in the time series), and we discuss as an example the application of these procedures to Super-Kamiokande solar neutrino data.

  5. AN APS WITH 2-D WTA SELECTION EMPLOYING ADAPTIVE SPATIAL FILTERING, BAD PIXEL ELIMINATION AND FALSE ALARM REDUCTION

    E-print Network

    AN APS WITH 2-D WTA SELECTION EMPLOYING ADAPTIVE SPATIAL FILTERING, BAD PIXEL ELIMINATION AND FALSE-Gurion University, Beer-Sheva 84105, Israel ABSTRACT An APS (Active Pixel Sensor) with 2D winner-take-all detection to the WTA detection circuit. A test chip of 64*64 has been implemented in 0.5 µm CMOS technology, 3.3V

  6. AMETHYST: automatic alarm assessment

    Microsoft Academic Search

    S. Mockler; N. Clarke

    2002-01-01

    The aim of the AMETHYST (AutoMatic Event auTHentication sYSTem) project is to encourage the development of a high-performance, perimeter-alarm verification system that, using computer-vision, automatically rejects false alarms. AMETHYST will pass to an operator only those alarms that are caused by an intruder.

  7. Medical audible alarms: a review

    PubMed Central

    Edworthy, Judy

    2013-01-01

    Objectives This paper summarizes much of the research that is applicable to the design of auditory alarms in a medical context. It also summarizes research that demonstrates that false alarm rates are unacceptably high, meaning that the proper application of auditory alarm design principles are compromised. Target audience Designers, users, and manufacturers of medical information and monitoring systems that indicate when medical or other parameters are exceeded and that are indicated by an auditory signal or signals. Scope The emergence of alarms as a ‘hot topic’; an outline of the issues and design principles, including IEC 60601-1-8; the high incidence of false alarms and its impact on alarm design and alarm fatigue; approaches to reducing alarm fatigue; alarm philosophy explained; urgency in audible alarms; different classes of sound as alarms; heterogeneity in alarm set design; problems with IEC 60601-1-8 and ways of approaching this design problem. PMID:23100127

  8. Methods for reducing false alarms in searches for compact binary coalescences in LIGO data This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-print Network

    Christensen, Nelson

    Methods for reducing false alarms in searches for compact binary coalescences in LIGO data This article has been downloaded from IOPscience. Please scroll down to see the full text article. 2010 Class apply. View the table of contents for this issue, or go to the journal homepage for more Home Search

  9. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Alarms. 76.15-30...PASSENGER VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  10. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Alarms. 95.15-30...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) A protected...provided to power the alarms. (c) For systems installed on or...

  11. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Alarms. 95.15-30...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  12. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Alarms. 193.15-30...RESEARCH VESSELS FIRE PROTECTION EQUIPMENT...Extinguishing Systems, Details § 193.15-30 Alarms. (a...delayed discharge system other than paint...approved audible alarm which will...

  13. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Alarms. 76.15-30...PASSENGER VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  14. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Alarms. 76.15-30...PASSENGER VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  15. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Alarms. 76.15-30...PASSENGER VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  16. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Alarms. 95.15-30...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) A protected...provided to power the alarms. (c) For systems installed on or...

  17. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Alarms. 193.15-30...RESEARCH VESSELS FIRE PROTECTION EQUIPMENT...Extinguishing Systems, Details § 193.15-30 Alarms. (a...delayed discharge system other than paint...approved audible alarm which will...

  18. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Alarms. 193.15-30...RESEARCH VESSELS FIRE PROTECTION EQUIPMENT...Extinguishing Systems, Details § 193.15-30 Alarms. (a...delayed discharge system other than paint...approved audible alarm which will...

  19. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Alarms. 95.15-30...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) A protected...provided to power the alarms. (c) For systems installed on or...

  20. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Alarms. 193.15-30...RESEARCH VESSELS FIRE PROTECTION EQUIPMENT...Extinguishing Systems, Details § 193.15-30 Alarms. (a...delayed discharge system other than paint...approved audible alarm which will...

  1. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Alarms. 76.15-30...PASSENGER VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  2. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Alarms. 193.15-30...RESEARCH VESSELS FIRE PROTECTION EQUIPMENT...Extinguishing Systems, Details § 193.15-30 Alarms. (a...delayed discharge system other than paint...approved audible alarm which will...

  3. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Alarms. 95.15-30...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) Spaces...July 1, 1957, alarms will be mandatory only for systems required to...

  4. Techniques to alleviate nuisance alarms observed by PCMs following 222Rn-progeny deposition on clothing.

    PubMed

    Justus, Alan L

    2015-05-01

    This paper presents technically-based techniques to deal with nuisance personnel contamination monitor (PCM) alarms. The techniques derive from the fundamental physical characteristics of radon progeny. Some PCM alarms, although valid alarms and not actually "false," could be due to nuisance naturally-occurring radionuclides (i.e., radon progeny). Based on certain observed characteristics of the radon progeny, several prompt techniques are discussed that could either remediate or at least mitigate the problem of nuisance alarms. Examples are provided which demonstrate the effective use of the techniques. PMID:25811253

  5. Video methods for evaluating physiologic monitor alarms and alarm responses.

    PubMed

    Bonafide, Christopher P; Zander, Miriam; Graham, Christian Sarkis; Weirich Paine, Christine M; Rock, Whitney; Rich, Andrew; Roberts, Kathryn E; Fortino, Margaret; Nadkarni, Vinay M; Lin, Richard; Keren, Ron

    2014-01-01

    False physiologic monitor alarms are extremely common in the hospital environment. High false alarm rates have the potential to lead to alarm fatigue, leading nurses to delay their responses to alarms, ignore alarms, or disable them entirely. Recent evidence from the U.S. Food and Drug Administration (FDA) and The Joint Commission has demonstrated a link between alarm fatigue and patient deaths. Yet, very little scientific effort has focused on the rigorous quantitative measurement of alarms and responses in the hospital setting. We developed a system using multiple temporarily mounted, minimally obtrusive video cameras in hospitalized patients' rooms to characterize physiologic monitor alarms and nurse responses as a proxy for alarm fatigue. This allowed us to efficiently categorize each alarm's cause, technical validity, actionable characteristics, and determine the nurse's response time. We describe and illustrate the methods we used to acquire the video, synchronize and process the video, manage the large digital files, integrate the video with data from the physiologic monitor alarm network, archive the video to secure servers, and perform expert review and annotation using alarm "bookmarks." We discuss the technical and logistical challenges we encountered, including the root causes of hardware failures as well as issues with consent, confidentiality, protection of the video from litigation, and Hawthorne-like effects. The description of this video method may be useful to multidisciplinary teams interested in evaluating physiologic monitor alarms and alarm responses to better characterize alarm fatigue and other patient safety issues in clinical settings. PMID:24847936

  6. 21 CFR 870.1100 - Blood pressure alarm.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 2010-04-01 2010-04-01 false Blood pressure alarm. 870.1100 Section 870...Cardiovascular Diagnostic Devices § 870.1100 Blood pressure alarm. (a) Identification. A blood pressure alarm is a device that accepts...

  7. 47 CFR 80.318 - Use of alarm signals.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 2012-10-01 false Use of alarm signals. 80.318 Section 80.318 Telecommunication...Procedures § 80.318 Use of alarm signals. (a) The radiotelegraph or radiotelephone alarm signal, as appropriate, must only be used...

  8. 47 CFR 80.318 - Use of alarm signals.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 2013-10-01 false Use of alarm signals. 80.318 Section 80.318 Telecommunication...Procedures § 80.318 Use of alarm signals. (a) The radiotelegraph or radiotelephone alarm signal, as appropriate, must only be used...

  9. 47 CFR 80.318 - Use of alarm signals.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 2010-10-01 false Use of alarm signals. 80.318 Section 80.318 Telecommunication...Procedures § 80.318 Use of alarm signals. (a) The radiotelegraph or radiotelephone alarm signal, as appropriate, must only be used...

  10. 47 CFR 80.318 - Use of alarm signals.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 2014-10-01 false Use of alarm signals. 80.318 Section 80.318 Telecommunication...Procedures § 80.318 Use of alarm signals. (a) The radiotelegraph or radiotelephone alarm signal, as appropriate, must only be used...

  11. 47 CFR 80.318 - Use of alarm signals.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 2011-10-01 false Use of alarm signals. 80.318 Section 80.318 Telecommunication...Procedures § 80.318 Use of alarm signals. (a) The radiotelegraph or radiotelephone alarm signal, as appropriate, must only be used...

  12. 21 CFR 870.1100 - Blood pressure alarm.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 2012-04-01 2012-04-01 false Blood pressure alarm. 870.1100 Section 870...Cardiovascular Diagnostic Devices § 870.1100 Blood pressure alarm. (a) Identification. A blood pressure alarm is a device that accepts...

  13. 46 CFR 169.732 - Carbon dioxide alarm.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 2010-10-01 2010-10-01 false Carbon dioxide alarm. 169.732 Section 169.732 Shipping...Systems, and Equipment Markings § 169.732 Carbon dioxide alarm. Each carbon dioxide alarm must be conspicuously identified:...

  14. 46 CFR 169.732 - Carbon dioxide alarm.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 2011-10-01 2011-10-01 false Carbon dioxide alarm. 169.732 Section 169.732 Shipping...Systems, and Equipment Markings § 169.732 Carbon dioxide alarm. Each carbon dioxide alarm must be conspicuously identified:...

  15. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...2012-04-01 false Portable leakage current alarm. 870.2640 Section 870.2640...Devices § 870.2640 Portable leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure...

  16. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...2013-04-01 false Portable leakage current alarm. 870.2640 Section 870.2640...Devices § 870.2640 Portable leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure...

  17. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...2014-04-01 false Portable leakage current alarm. 870.2640 Section 870.2640...Devices § 870.2640 Portable leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure...

  18. Medical Device Alarms - The Statistician

    Microsoft Academic Search

    R. Fried

    \\u000a The high rate of false alarms triggered by medical devices raises concerns over the reliability of current clinical alarm\\u000a systems. In close cooperation between physicians, statisticians and engineers within the Collaborative Research Centre SFB\\u000a 475, we have worked on improved alarm algorithms for online monitoring in intensive care. In current clinical practice there\\u000a are procedures based on simple fixed thresholds,

  19. Medical Device Alarms – The Clinician

    Microsoft Academic Search

    M. Imhoff

    \\u000a The alarms of medical devices are a matter of concern in critical and perioperative care. The high rate of false alarms is\\u000a not only a nuisance for patients and caregivers, but can also compromise patient safety and effectiveness of care. The development\\u000a of alarm systems has lagged behind the technological advances of medical devices over the last 20 years. From

  20. Wasabi Alarm

    E-print Network

    Hacker, Randi

    2011-11-23

    for those who are hard of hearing. The team tried out about 100 different smells including rotten eggs before settling on wasabi. For their work, they were awarded the Ig Nobel Prize for Chemistry. Wasabi, doc? With this alarm, you are. #ceas #hacker #japan...

  1. 46 CFR 161.002-12 - Manual fire alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Manual fire alarm systems. 161.002-12 Section...SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Fire-Protective Systems § 161.002-12 Manual fire alarm systems. (a) General. A...

  2. 46 CFR 161.002-12 - Manual fire alarm systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Manual fire alarm systems. 161.002-12 Section...SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Fire-Protective Systems § 161.002-12 Manual fire alarm systems. (a) General. A...

  3. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...2013-07-01 2013-07-01 false Employee alarm systems. 1910.165 Section 1910.165 Labor...STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee alarm systems. (a) Scope and application....

  4. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 2014-07-01 false Employee alarm systems. 1910.165 Section 1910.165 Labor...STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee alarm systems. (a) Scope and application....

  5. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...2012-07-01 2012-07-01 false Employee alarm systems. 1910.165 Section 1910.165 Labor...STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee alarm systems. (a) Scope and application....

  6. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 2011-07-01 false Employee alarm systems. 1910.165 Section 1910.165 Labor...STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee alarm systems. (a) Scope and application....

  7. 46 CFR 76.05-5 - Manual alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Manual alarm system. 76.05-5 Section 76...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing...Required § 76.05-5 Manual alarm system. (a) An approved...

  8. 46 CFR 76.05-5 - Manual alarm system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Manual alarm system. 76.05-5 Section 76...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing...Required § 76.05-5 Manual alarm system. (a) An approved...

  9. 46 CFR 76.05-5 - Manual alarm system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Manual alarm system. 76.05-5 Section 76...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing...Required § 76.05-5 Manual alarm system. (a) An approved...

  10. 46 CFR 76.05-5 - Manual alarm system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Manual alarm system. 76.05-5 Section 76...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing...Required § 76.05-5 Manual alarm system. (a) An approved...

  11. 46 CFR 76.05-5 - Manual alarm system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Manual alarm system. 76.05-5 Section 76...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing...Required § 76.05-5 Manual alarm system. (a) An approved...

  12. 46 CFR 108.627 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 108.627...Equipment Markings and Instructions § 108.627 Carbon dioxide and clean agent alarms. Each carbon dioxide alarm must be identified by...

  13. 46 CFR 108.627 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 108.627 ...Markings and Instructions § 108.627 Carbon dioxide and clean agent alarms. Each carbon dioxide alarm must be identified by...

  14. 46 CFR 193.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Fire detecting, manual alarm, and supervised patrol systems. 193.05-1... § 193.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting, manual alarm, and supervised...

  15. 46 CFR 193.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Fire detecting, manual alarm, and supervised patrol systems. 193.05-1... § 193.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting, manual alarm, and supervised...

  16. 46 CFR 193.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Fire detecting, manual alarm, and supervised patrol systems. 193.05-1... § 193.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting, manual alarm, and supervised...

  17. 46 CFR 193.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Fire detecting, manual alarm, and supervised patrol systems. 193.05-1... § 193.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting, manual alarm, and supervised...

  18. 46 CFR 193.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Fire detecting, manual alarm, and supervised patrol systems. 193.05-1... § 193.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting, manual alarm, and supervised...

  19. Empirical Bayes Methods Applied to Estimating Fire Alarm Probabilities

    Microsoft Academic Search

    Grace M. Carter; John E. Rolph

    1974-01-01

    An empirical Bayes approach is used to derive a Stein-type estimator of a multivariate normal mean when the components have unequal variances. This estimator is applied to estimating the probability that a fire alarm reported from a particular street box signals a structural fire rather than a false alarm or other emergency. The approach is to group alarm boxes into

  20. Practical alarm filtering

    SciTech Connect

    Bray, M.; Corsberg, D. (Idaho National Engineering Lab., Idaho Falls, ID (United States))

    1994-02-01

    An expert system-based alarm filtering method is described which prioritizes and reduces the number of alarms facing an operator. This patented alarm filtering methodology was originally developed and implemented in a pressurized water reactor, and subsequently in a chemical processing facility. Both applications were in LISP and both were successful. In the chemical processing facility, for instance, alarm filtering reduced the quantity of alarm messages by 90%. 6 figs.

  1. How Safe Is Our Campus? Does every student's room have a smoke alarm?

    E-print Network

    Wagner, Diane

    by contractors working in buildings. The number of malicious fire alarms is very minimal. The fine system has that are causing false alarms. #12;Is the fire department IMMEDIATLEY notified whenever ANY fire alarm system is activated? Yes, the alarm systems are tied into the Emergency Communications Center and the University Fire

  2. False friends

    Microsoft Academic Search

    Pedro J. Chamizo Dom??nguez; Brigitte Nerlich

    2002-01-01

    In this article we want to investigate the semantic (figurative) structures that underlie false friends, especially semantic false friends, in various European languages (Spanish, French, German and English). Chance false friends share the same form but have different etymologies and different meanings in different languages. They can be compared to homonyms in a single natural language. Semantic false friends, by

  3. Remote Monitor Alarm System

    NASA Technical Reports Server (NTRS)

    Stute, Robert A. (Inventor); Galloway, F. Houston (Inventor); Medelius, Pedro J. (Inventor); Swindle, Robert W. (Inventor); Bierman, Tracy A. (Inventor)

    1996-01-01

    A remote monitor alarm system monitors discrete alarm and analog power supply voltage conditions at remotely located communications terminal equipment. A central monitoring unit (CMU) is connected via serial data links to each of a plurality of remote terminal units (RTUS) that monitor the alarm and power supply conditions of the remote terminal equipment. Each RTU can monitor and store condition information of both discrete alarm points and analog power supply voltage points in its associated communications terminal equipment. The stored alarm information is periodically transmitted to the CMU in response to sequential polling of the RTUS. The number of monitored alarm inputs and permissible voltage ranges for the analog inputs can be remotely configured at the CMU and downloaded into programmable memory at each RTU. The CMU includes a video display, a hard disk memory, a line printer and an audio alarm for communicating and storing the alarm information received from each RTU.

  4. Learn about Smoke Alarms

    MedlinePLUS

    ... smoke alarms can I buy? There are many brands of smoke alarms on the market, but they ... outreach materials you can use to help increase awareness about fires in your community. National Fire Protection ...

  5. Comparison of RFI Mitigation Strategies for Dispersed Pulse Detection

    E-print Network

    Hogden, John; Bower, Geoffrey C; Michalak, Sarah; Siemion, Andrew; Werthimer, Daniel

    2012-01-01

    Impulsive radio-frequency signals from astronomical sources are dispersed by the frequency dependent index of refraction of the interstellar media and so appear as chirped signals when they reach earth. Searches for dispersed impulses have been limited by false detections due to radio frequency interference (RFI) and, in some cases, artifacts of the instrumentation. Many authors have discussed techniques to excise or mitigate RFI in searches for fast transients, but comparisons between different approaches are lacking. This work develops RFI mitigation techniques for use in searches for dispersed pulses, employing data recorded in a "Fly's Eye" mode of the Allen Telescope Array as a test case. We gauge the performance of several RFI mitigation techniques by adding dispersed signals to data containing RFI and comparing false alarm rates at the observed signal-to-noise ratios of the added signals. We find that Huber filtering is most effective at removing broadband interferers, while frequency centering is most...

  6. Fire alarm system improvement

    Microsoft Academic Search

    1994-01-01

    This document contains the Fire Alarm System Test Procedure for Building 234-5Z, 200-West Area on the Hanford Reservation, Richland, Washington. This Acceptance Test Procedure (ATP) has been prepared to demonstrate that the modifications to the Fire Protection systems function as required by project criteria. The ATP will test the Fire Alarm Control Panels, Flow Alarm Pressure Switch, Heat Detectors, Smoke

  7. Intra-operative monitoring--many alarms with minor impact.

    PubMed

    de Man, F R; Greuters, S; Boer, C; Veerman, D P; Loer, S A

    2013-08-01

    Alarms are key components of peri-operative monitoring devices, but a high false-alarm rate may lead to desensitisation and neglect. The objective of this study was to quantify the number of alarms and assess the value of these alarms during moderate-risk surgery. For this purpose, we analysed documentation of anaesthesia workstations during 38 surgical procedures. Alarms were classified on technical validity and clinical relevance. The median (IQR [range]) alarm density per procedure was 20.8 (14.5-34.2 [3.7-85.6]) alarms.h?¹ (1 alarm every 2.9 min) and increased during induction and emergence of anaesthesia, with up to one alarm per 0.99 min during these periods (p < 0.001). Sixty-four per cent of all alarms were clinically irrelevant, whereas 5% of all alarms required immediate intervention. The positive predictive value of an alarm during induction and emergence was 20% (95% CI 16-24%) and 11% (95% CI 8-14%), respectively. This study shows that peri-operative alarms are frequently irrelevant, with a low predictive value for an emerging event requiring clinical intervention. PMID:23745968

  8. 46 CFR 97.37-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 97.37-9...Emergency Equipment, Etc. § 97.37-9 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  9. 46 CFR 97.37-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 97.37-9...Emergency Equipment, Etc. § 97.37-9 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  10. 46 CFR 78.47-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 78.47-9...Emergency Equipment, Etc. § 78.47-9 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  11. 46 CFR 78.47-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 78.47-9...Emergency Equipment, Etc. § 78.47-9 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  12. 46 CFR 196.37-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 196...Equipment, etc. § 196.37-9 Carbon dioxide and clean agent alarms. Each extinguishing system using carbon dioxide or clean agent complying...

  13. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section...25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned ocean or coastwise barge of more than 100...

  14. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section...25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned ocean or coastwise barge of more than 100...

  15. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section...25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned ocean or coastwise barge of more than 100...

  16. 46 CFR 131.815 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 131.815 ...and Emergency Equipment § 131.815 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  17. 46 CFR 131.815 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 131.815 ...and Emergency Equipment § 131.815 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  18. 46 CFR 196.37-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 196...Equipment, etc. § 196.37-9 Carbon dioxide and clean agent alarms. Each extinguishing system using carbon dioxide or clean agent complying...

  19. 46 CFR 78.47-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 2012-10-01 false Carbon dioxide and clean agent alarms. 78.47-9...Emergency Equipment, Etc. § 78.47-9 Carbon dioxide and clean agent alarms. Each carbon dioxide or clean agent fire extinguishing...

  20. Improved correlation analysis and visualization of industrial alarm data.

    PubMed

    Yang, F; Shah, S L; Xiao, D; Chen, T

    2012-07-01

    The problem of multivariate alarm analysis and rationalization is complex and important in the area of smart alarm management due to the interrelationships between variables. The technique of capturing and visualizing the correlation information, especially from historical alarm data directly, is beneficial for further analysis. In this paper, the Gaussian kernel method is applied to generate pseudo continuous time series from the original binary alarm data. This can reduce the influence of missed, false, and chattering alarms. By taking into account time lags between alarm variables, a correlation color map of the transformed or pseudo data is used to show clusters of correlated variables with the alarm tags reordered to better group the correlated alarms. Thereafter correlation and redundancy information can be easily found and used to improve the alarm settings; and statistical methods such as singular value decomposition techniques can be applied within each cluster to help design multivariate alarm strategies. Industrial case studies are given to illustrate the practicality and efficacy of the proposed method. This improved method is shown to be better than the alarm similarity color map when applied in the analysis of industrial alarm data. PMID:22503464

  1. Age-related changes in False Recognition: An ERP Study 

    E-print Network

    Robb, Lindsey

    2011-01-01

    to falsely “remember” events which did not happen, by misleading post-event information, compared to younger adults. An exploratory analysis of left parietal old/new effects from collected ERP data revealed unexpected conclusions. False alarms to lure stimuli...

  2. Giving radioiodine? Think about airport security alarms.

    PubMed

    Kaniuka-Jakubowska, S; Lewczuk, A; Mizan-Gross, K; Obo?o?czyk, L; Lass, P; Sworczak, K

    2012-01-01

    An increased sensitivity of airport detectors, a growing number of isotopic tests, and globalization of the society have raised a number of false positive radioactive alarms at airports and public places. This paper presents two new cases of patients who triggered airport security alarms after receiving 740MBq of (131)I for non-toxic goitre and attempts to compare surprisingly limited literature concerning this problem. A 57-year-old man triggered a security alarm at three different airports on the 17th, 28th, and 31st day after radioiodine exposure. Interestingly enough, in the meantime, on the 18th and 22nd day, no radiation was detected in him at the airport where he was twice detained as a source of radiation later on. The second case presents a 45-year-old woman who activated security alarm detectors while crossing a border on her coach trip 28 days after radioiodine administration. PMID:22226338

  3. Make an Alarm!

    NSDL National Science Digital Library

    Center for Engineering Educational Outreach,

    After reading the story "Dear Mr. Henshaw" by Beverly Cleary, student groups create alarm systems to protect something in the classroom, just as the main character Leigh does to protect his lunchbox from thieves. Students learn about alarms and use their creativity to devise multi-step alarm systems to protect their lockers, desk, pets or classroom door. Note: This activity can also be done without reading the Cleary book.

  4. Fire alarm system improvement

    SciTech Connect

    Hodge, S.G.

    1994-10-01

    This document contains the Fire Alarm System Test Procedure for Building 234-5Z, 200-West Area on the Hanford Reservation, Richland, Washington. This Acceptance Test Procedure (ATP) has been prepared to demonstrate that the modifications to the Fire Protection systems function as required by project criteria. The ATP will test the Fire Alarm Control Panels, Flow Alarm Pressure Switch, Heat Detectors, Smoke Detectors, Flow Switches, Manual Pull Stations, and Gong/Door by Pass Switches.

  5. 33 CFR 401.17 - Pitch indicators and alarms.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 2010-07-01 false Pitch indicators and alarms. 401.17 Section 401...Condition of Vessels § 401.17 Pitch indicators and alarms. Every vessel of 1600...be equipped with— (a) A pitch indicator in the wheelhouse and the engine...

  6. 33 CFR 157.440 - Autopilot alarm or indicator.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...2010-07-01 2010-07-01 false Autopilot alarm or indicator. 157.440 Section 157.440 Navigation and Navigable...Carrying Petroleum Oils § 157.440 Autopilot alarm or indicator. (a) A tankship owner or operator shall ensure...

  7. Advanced fire detection using multi-signature alarm algorithms

    Microsoft Academic Search

    Daniel T. Gottuk; Michelle J. Peatross; Richard J. Roby; Craig L. Beyler

    2002-01-01

    The objective of this work was to assess the feasibility of reducing false alarms while increasing sensitivity through the use of combined conventional smoke detectors with carbon monoxide (CO) sensors. This was accomplished through an experimental program using both real (fire) and nuisance alarm sources. A broad selection of sources was used ranging from smoldering wood and flaming fabric to

  8. Transportable criticality alarm system

    SciTech Connect

    Clem, W.E.

    1988-09-01

    The Transportable Criticality Alarm System was developed at the Hanford Site in 1982 to comply with the requirements of US Department of Energy Order DOE 5480.1, 12/18/80, and ANSI/ANS-8.3- 1979. The portable unit that it replaced failed to comply with the new requirements in that it did not provide the necessary warning of malfunctions, nor did it provide the Hanford Site standard criticality alarm signal. Modern technology allowed the Transportable Criticality Alarm System to comply with the criticality requirements cited and to incorporate other features that make it more usable, maintainable, and reliable. The Transportable Criticality Alarm System (TCAS) provides temporary criticality coverage in manned areas where the facility criticality alarm system is not operable. This gamma radiation-sensitive system has been in use for the past 6 yr at the Hanford Site. 2 refs., 4 figs., 1 tab.

  9. Sensor fusion for intelligent alarm analysis

    SciTech Connect

    Nelson, C.L.; Fitzgerald, D.S.

    1995-03-01

    The purpose of an intelligent alarm analysis system is to provide complete and manageable information to a central alarm station operator by applying alarm processing and fusion techniques to sensor information. This paper discusses the sensor fusion approach taken to perform intelligent alarm analysis for the Advanced Exterior Sensor (AES). The AES is an intrusion detection and assessment system designed for wide-area coverage, quick deployment, low false/nuisance alarm operation, and immediate visual assessment. It combines three sensor technologies (visible, infrared, and millimeter wave radar) collocated on a compact and portable remote sensor module. The remote sensor module rotates at a rate of 1 revolution per second to detect and track motion and provide assessment in a continuous 360` field-of-regard. Sensor fusion techniques are used to correlate and integrate the track data from these three sensors into a single track for operator observation. Additional inputs to the fusion process include environmental data, knowledge of sensor performance under certain weather conditions, sensor priority, and recent operator feedback. A confidence value is assigned to the track as a result of the fusion process. This helps to reduce nuisance alarms and to increase operator confidence in the system while reducing the workload of the operator.

  10. False names.

    PubMed Central

    Rendleman, N

    1998-01-01

    A patient's unique, personal name is fundamental in medical relationships. Sometimes, patients may use false names, which obscure family, ethnic, sexual, or billing identities. The means and motivations involved--fraud, concealment, gaining financial or personal advantage, gratifying a psychic need, or changing group assignment--produce a variety of distinct clinical manifestations of false name use. These may be classified as alias, pseudonym, manipulator, fraud, psychotic, amnestic, medical factitioner, and renamed. The identification of falsely named patients enables clinicians to improve care for these types of patients. Individual cases are briefly described and a discussion of naming in society and medicine follows. This preliminary discussion may serve to fuel further refinement. PMID:9830369

  11. The Neural Correlates of Conceptual and Perceptual False Recognition

    ERIC Educational Resources Information Center

    Garoff-Eaton, Rachel J.; Kensinger, Elizabeth A.; Schacter, Daniel L.

    2007-01-01

    False recognition, broadly defined as a claim to remember something that was not encountered previously, can arise for multiple reasons. For instance, a distinction can be made between conceptual false recognition (i.e., false alarms resulting from semantic or associative similarities between studied and tested items) and perceptual false

  12. 46 CFR 35.40-5 - General alarm bells-TB/ALL.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false General alarm bells-TB/ALL. 35.40-5 Section 35.40-5 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL. § 35.40-5 General alarm bells—TB/ALL. General alarm bells must be marked...

  13. 46 CFR 35.40-5 - General alarm bells-TB/ALL.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false General alarm bells-TB/ALL. 35.40-5 Section 35.40-5 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL § 35.40-5 General alarm bells—TB/ALL. General alarm bells must be marked...

  14. 46 CFR 35.40-5 - General alarm bells-TB/ALL.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false General alarm bells-TB/ALL. 35.40-5 Section 35.40-5 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL § 35.40-5 General alarm bells—TB/ALL. General alarm bells must be marked...

  15. 46 CFR 35.40-1 - General alarm contact maker-TB/ALL.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... false General alarm contact maker-TB/ALL. 35.40-1 Section 35.40-1 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL § 35.40-1 General alarm contact maker—TB/ALL. Each general alarm contact maker...

  16. 46 CFR 35.40-5 - General alarm bells-TB/ALL.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false General alarm bells-TB/ALL. 35.40-5 Section 35.40-5 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL § 35.40-5 General alarm bells—TB/ALL. General alarm bells must be marked...

  17. 46 CFR 35.40-5 - General alarm bells-TB/ALL.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false General alarm bells-TB/ALL. 35.40-5 Section 35.40-5 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL. § 35.40-5 General alarm bells—TB/ALL. General alarm bells must be marked...

  18. 46 CFR 131.815 - Alarm for fixed gaseous fire-extinguishing system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Alarm for fixed gaseous fire-extinguishing system. 131.815 Section 131...Emergency Equipment § 131.815 Alarm for fixed gaseous fire-extinguishing system. Each alarm for a fixed gaseous...

  19. 46 CFR 131.815 - Alarm for fixed gaseous fire-extinguishing system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Alarm for fixed gaseous fire-extinguishing system. 131.815 Section 131...Emergency Equipment § 131.815 Alarm for fixed gaseous fire-extinguishing system. Each alarm for a fixed gaseous...

  20. Design of the Intelligent Test Equipment of Airplane Fire Alarm System

    Microsoft Academic Search

    Xu Hengcheng; Zeng Xianlin; Liu Xiangqun

    2010-01-01

    The airplane fire alarm system is a piece of the most important equipment influencing the flight security. Due to the factors of design and working condition, the reliability of the system is poor, especially the high rate of false alarm. So the test equipment of airplane fire alarm system, an intelligent synthesis test system allowing multiple parameters and digital data

  1. A design of a fire alarm system based on dual-signal detection and transmission

    Microsoft Academic Search

    Chai Chunlai

    2009-01-01

    Disadvantages such as high false alarm rate and the duration of long checking cycle time appear in current fire alarm equipments\\/systems. In view of these disadvantages, this paper presents data communications using non-conventional and conventional data communications to achieve a combination of information transmitting fire alarm system working principle, the main system controller analysis, the area controller analysis, the detection

  2. Chair Alarm for patient fall prevention based on Gesture Recognition and Interactivity

    Microsoft Academic Search

    Heather Knight; Jae-Kyu Lee; Hongshen Ma

    2008-01-01

    The Gesture Recognition Interactive Technology (GRiT) Chair Alarm aims to prevent patient falls from chairs and wheelchairs by recognizing the gesture of a patient attempting to stand. Patient falls are one of the greatest causes of injury in hospitals. Current chair and bed exit alarm systems are inadequate because of insufficient notification, high false-alarm rate, and long trigger delays. The

  3. FundAlarm

    NSDL National Science Digital Library

    FundAlarm is a "a free, non-commercial Website [which provides] objective information to help individual investors make the mutual fund 'sell' decision." Highlighted on this site is the FundAlarm database, which contains over 3,400 stock and balanced mutual funds. The database may be browsed by name of fund, or users can browse only fidelity and Vanguard funds, as well as search by up to five ticker symbols. The site also explains its benchmarking system of ranking funds, offers shop talk in its Highlights and Commentary section, and includes a discussion board. Interested users may sign up for free email notification of FundAlarm updates.

  4. 46 CFR 31.35-5 - Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31...35-5 Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL....

  5. 46 CFR 31.35-5 - Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31...35-5 Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL....

  6. 46 CFR 31.35-5 - Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31...35-5 Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL....

  7. 46 CFR 31.35-5 - Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31...35-5 Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL....

  8. Sounding the Alarm.

    ERIC Educational Resources Information Center

    Cordasco, Jerry M.

    2000-01-01

    Explains the use of alarms and other early-detection devices to effectively protect students in life-threatening fire situations. Ohio State University's multidiscipline approach to life safety is illustrated. (GR)

  9. Fire alarm system

    SciTech Connect

    Koehling, E.

    1995-01-01

    This test procedure is the documentation for the testing of the 4 fire alarm bells which rewired during the remodeling of the Emergency Operations Center in the Richland, Washington, Federal Office Building.

  10. Gunshot acoustic signature specific features and false alarms reduction

    Microsoft Academic Search

    Alain Donzier; Joel Millet

    2005-01-01

    This paper provides a detailed analysis of the most specific parameters of gunshot signatures through models as well as through real data. The models for the different contributions to gunshot typical signature (shock and muzzle blast) are presented and used to discuss the variation of measured signatures over the different environmental conditions and shot configurations. The analysis is followed by

  11. Four False Alarms and Two Beams of Light. Review Essay.

    ERIC Educational Resources Information Center

    Fuchs, Lawrence H.

    1996-01-01

    The alarmist tone of four of these books is consistent with the surging anti-immigration sentiment of the mid-1990s. None is a serious effort to analyze the complex effects of immigration in the United States. The other two books reviewed present thoughtful and carefully researched examinations of immigration questions. (SLD)

  12. [The Halcion affair in 1979, a false alarm?].

    PubMed

    Meyboom, R H

    1989-11-01

    In the course of 1979 the Netherlands Centre for Monitoring of Adverse Reactions to Drugs (NARD) received a remarkably large number of reports on patients with unusual and complex psychic disturbances, attributed to the use of the then recently marketed hypnotic triazolam. The interpretation of the data was difficult, however, and several questions could at that time not be properly answered. In the past 10 years a specific benzodiazepine withdrawal syndrome has been identified, showing many similarities with the disturbances as reported in association with triazolam. In addition similar adverse experiences with triazolam have been reported in many other countries. Tablets containing 1 mg and 0.5 mg triazolam, as were widely used in The Netherlands, have in the mean time been globally removed from the market. It is concluded that the 'triazolam syndrome' may be explained as a combination of strong benzodiazepine effects and withdrawal phenomena. The ultra short half-life of triazolam and the high doses used may have contributed to the problems as observed in The Netherlands. The signal perceived by the NARD appears to have been a valuable warning, rightly casting doubt on the safety of triazolam and the original dosage recommendations. PMID:2682288

  13. False alarm metrics: Evaluating safety in human robot interactions

    Microsoft Academic Search

    Mohan Rajesh Elara; Carlos A. Acosta Calderon; Changjiu Zhou; Wijerupage Sardha Wijesoma

    2010-01-01

    Human robot teams combining the complementary capabilities of robots and humans towards solving potentially complex service tasks are gaining wide spread popularity. Many of these tasks will involve close interactions between the robot and the human it serves thereby making safety a crucial parameter. Erroneous interaction that inevitably arises between human and the robot causes accidents in service robotic applications.

  14. Munchausen Stridor-A Strong False Alarm of Anaphylaxis

    PubMed Central

    Oldham, Jennifer L.

    2014-01-01

    The diagnosis of anaphylaxis is often based on reported symptoms which may not be accurate and lead to major psychosocial and financial impacts. We describe two adult patients who were diagnosed as having recurrent anaphylaxis witnessed by multiple physicians based on recurrent laryngeal symptoms. The claimed cause was foods in one and drugs in the other. We questioned the diagnosis because of absent documentation of objective findings to support anaphylaxis, and the symptoms occurred during skin testing though the test sites were not reactive. Our initial skin testing with placebos reproduced the symptoms without objective findings. Subsequent skin tests with the suspected allergens were negative yet reproduced the symptoms without objective findings. Disclosing the test results markedly displeased one patient but reassured the other who subsequently tolerated the suspected allergen. In conclusion, these 2 patients' symptoms and evaluation were not supportive of their initial diagnosis of recurrent anaphylaxis. The compatible diagnosis was Munchausen stridor which requires psychiatric evaluation and behavior modification, but often rejected by patients. PMID:25374759

  15. Parallax mitigation for hyperspectral change detection

    NASA Astrophysics Data System (ADS)

    Vongsy, Karmon; Eismann, Michael T.; Mendenhall, Michael J.; Velten, Vincent J.

    2014-06-01

    A pixel-level Generalized Likelihood Ratio Test (GLRT) statistic for hyperspectral change detection is developed to mitigate false change caused by image parallax. Change detection, in general, represents the difficult problem of discriminating significant changes opposed to insignificant changes caused by radiometric calibration, image registration issues, and varying view geometries. We assume that the images have been registered, and each pixel pair provides a measurement from the same spatial region in the scene. Although advanced image registration methods exist that can reduce mis-registration to subpixel levels; residual spatial mis-registration can still be incorrectly detected as significant changes. Similarly, changes in sensor viewing geometry can lead to parallax error in an urban cluttered scene where height structures, such as buildings, appear to move. Our algorithm looks to the inherent relationship between the image views and the theory of stereo vision to perform parallax mitigation leading to a search result in the assumed parallax direction. Mitigation of the parallax-induced false alarms is demonstrated using hyperspectral data in the experimental analysis. The algorithm is examined and compared to the existing chronochrome anomalous change detection algorithm to assess performance.

  16. Design of fire detection and alarm system based on intelligent neural network

    Microsoft Academic Search

    Mingyi Zhu; Jiamin Zhang

    2011-01-01

    For fire detection and alarm system with simple function, positioning difficulties, false positive and false negative in traditional intelligent building, the fire detection and alarm systems based on intelligent neural network have been designed. It can do integrated estimation with a variety of fire detection information detected by the microcontroller, neural network intelligent algorithm was joined in the software design,

  17. Smart alarms from medical devices in the OR and ICU.

    PubMed

    Imhoff, Michael; Kuhls, Silvia; Gather, Ursula; Fried, Roland

    2009-03-01

    Alarms in medical devices are a matter of concern in critical and perioperative care. The high rate of false alarms is not only a nuisance for patients and caregivers, but can also compromise patient safety and effectiveness of care. The development of alarm systems has lagged behind the technological advances of medical devices over the last 20 years. From a clinical perspective, major improvements in alarm algorithms are urgently needed. This review gives an overview of the current clinical situation and the underlying problems, and discusses different methods from statistics and computational science and their potential for clinical application. Some examples of the application of new alarm algorithms to clinical data are presented. PMID:19449615

  18. Burglar and Fire Alarms.: Costs and Benefits to the Locality

    Microsoft Academic Search

    Simon Hakim; George F. Rengert; Yochanan Shachmurove

    1995-01-01

    The alarm industry has been estimated at 8-11 billion dollars in 1993. There are approximately 17 million alarms installed nationwide. The annual growth of installations has been 8 percent over the last five years. At the same time, the number of false activations per system is 1.1 to 1.4 per year, with 20 to 30 percent of police manpower devoted

  19. FIRE ALARM SYSTEM OUTDATED.

    ERIC Educational Resources Information Center

    CHANDLER, L.T.

    AN EFFICIENT FIRE ALARM SYSTEM SHOULD--(1) PROVIDE WARNING OF FIRES THAT START IN HIDDEN OR UNOCCUPIED LOCATIONS, (2) INDICATE WHERE THE FIRE IS, (3) GIVE ADVANCE WARNING TO FACULTY AND ADMINISTRATION SO THAT PANIC AND CONFUSION CAN BE AVOIDED AND ORDERLY EVACUATION OCCUR, (4) AUTOMATICALLY NOTIFY CITY FIRE HEADQUARTERS OF THE FIRE, (5) OPERATE BY…

  20. Correlating data from different sensors to increase the positive predictive value of alarms: an empiric assessment

    PubMed Central

    Bitan, Yuval

    2012-01-01

    Objectives: Alarm fatigue from high false alarm rate is a well described phenomenon in the intensive care unit (ICU). Progress to further reduce false alarms must employ a new strategy. Highly sensitive alarms invariably have a very high false alarm rate. Clinically useful alarms have a high Positive-Predictive Value. Our goal is to demonstrate one approach to suppressing false alarms using an algorithm that correlates information across sensors and replicates the ways that human evaluators discriminate artifact from real signal. Methods: After obtaining IRB approval and waiver of informed consent, a set of definitions, (hypovolemia, left ventricular shock, tamponade, hemodynamically significant ventricular tachycardia, and hemodynamically significant supraventricular tachycardia), were installed in the monitors in a 10 bed cardiothoracic ICU and evaluated over an 85 day study period. The logic of the algorithms was intended to replicate the logic of practitioners, and correlated information across sensors in a way similar to that used by practitioners. The performance of the alarms was evaluated via a daily interview with the ICU attending and review of the tracings recorded over the previous 24 hours in the monitor. True alarms and false alarms were identified by an expert clinician, and the performance of the algorithms evaluated using the standard definitions of sensitivity, specificity, positive predictive value, and negative predictive value. Results: Between 1 and 221 instances of defined events occurred over the duration of the study, and the positive predictive value of the definitions varied between 4.1% and 84%. Conclusions: Correlation of information across alarms can suppress artifact, increase the positive predictive value of alarms, and can employ more sophisticated definitions of alarm events than present single-sensor based systems. PMID:24358810

  1. Recent Results on "Approximations to Optimal Alarm Systems for Anomaly Detection"

    NASA Technical Reports Server (NTRS)

    Martin, Rodney Alexander

    2009-01-01

    An optimal alarm system and its approximations may use Kalman filtering for univariate linear dynamic systems driven by Gaussian noise to provide a layer of predictive capability. Predicted Kalman filter future process values and a fixed critical threshold can be used to construct a candidate level-crossing event over a predetermined prediction window. An optimal alarm system can be designed to elicit the fewest false alarms for a fixed detection probability in this particular scenario.

  2. The tape recorder shutdown alarm

    NASA Astrophysics Data System (ADS)

    Hahn, J. C.

    A tape recorder shutdown alarm was developed to alert Space Shuttle personnel when tape recorders registering data during flight as well as in pre-flight tests stop functioning. The audio alarm is activated when a component such as a capstan motor fails, and in failure to switchover, to provide start-up signal, and to respond to start-up signal. A provision was made for the alarm to turn on a standby recorder in less than two seconds.

  3. 46 CFR 162.050-20 - Separator and bilge alarm test fluids.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...false Separator and bilge alarm test fluids. 162.050-20 Section 162.050-20...050-20 Separator and bilge alarm test fluids. (a) Tests required in §§ 162...using the following three types of test fluids: (1) Test Fluid A, which is...

  4. 46 CFR 35.40-7 - Carbon dioxide alarm-T/ALL.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Carbon dioxide alarm-T/ALL. 35.40-7 Section 35.40-7 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL. § 35.40-7 Carbon dioxide alarm—T/ALL. Adjacent to all carbon dioxide fire...

  5. 46 CFR 35.40-7 - Carbon dioxide alarm-T/ALL.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Carbon dioxide alarm-T/ALL. 35.40-7 Section 35.40-7 Shipping...OPERATIONS Posting and Marking Requirements-TB/ALL. § 35.40-7 Carbon dioxide alarm—T/ALL. Adjacent to all carbon dioxide fire...

  6. A methodology of alarm filtering using dynamic fault tree

    Microsoft Academic Search

    Zineb Simeu-Abazi; Arnaud Lefebvre; Jean-Pierre Derain

    2011-01-01

    This article presents a new approach for filtering the faults, thanks to the defined dynamic fault tree (DFT). The proposed methodology includes the dependencies between fault events in the models. Two problems must thus be solved: they relate to the filtering of false alarms, and the reduction of the size of the ambiguity of fault isolation related to the occurrence

  7. Fire alarm system. Revision 1

    Microsoft Academic Search

    1994-01-01

    This Acceptance Test Procedure (ATP) has been prepared to demonstrate that the modifications to the Fire Protection systems function as required by project criteria. The ATP will test the Fire Alarm Control Panels, Flow Alarm Pressure Switch, Heat Detectors, Smoke Detectors, Flow Switches, Manual Pull Stations, and Gong\\/Door By-Pass Switches. This equipment is part of the Plutonium Finishing Plant life

  8. USE OF ACID LAKE REACIDIFICATION MODEL (ALaRM) TO ASSESS IMPACT OF BOTTOM SEDIMENTS ON CALCIUM CARBONATE TREATED LAKES

    Microsoft Academic Search

    Joseph V. DePinto; Richard D. Scheffe; Thomas C. Young; William G. Booty; James R. Rhea

    1987-01-01

    A mathematical model (ALaRM) for predicting the reacidification profile of calcium carbonate treated lakes has been calibrated and confirmed using data from two Lake Acidification Mitigation Project (LAMP) lakes. This manuscript focused on the use of ALaRM to evaluate the relative impact of bottom sediment processes on the reacidification rate of the LAMP lakes. Prior to liming the lakes exhibited

  9. 44 CFR 78.6 - Flood Mitigation Plan approval process.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Assistance 1 2010-10-01 2010-10-01 false Flood Mitigation Plan approval process. 78.6 Section...SECURITY INSURANCE AND HAZARD MITIGATION National Flood Insurance Program FLOOD MITIGATION ASSISTANCE § 78.6 Flood...

  10. 44 CFR 78.6 - Flood Mitigation Plan approval process.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Assistance 1 2011-10-01 2011-10-01 false Flood Mitigation Plan approval process. 78.6 Section...SECURITY INSURANCE AND HAZARD MITIGATION National Flood Insurance Program FLOOD MITIGATION ASSISTANCE § 78.6 Flood...

  11. 44 CFR 78.6 - Flood Mitigation Plan approval process.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Assistance 1 2014-10-01 2014-10-01 false Flood Mitigation Plan approval process. 78.6 Section...SECURITY INSURANCE AND HAZARD MITIGATION National Flood Insurance Program FLOOD MITIGATION ASSISTANCE § 78.6 Flood...

  12. 44 CFR 78.6 - Flood Mitigation Plan approval process.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Assistance 1 2013-10-01 2013-10-01 false Flood Mitigation Plan approval process. 78.6 Section...SECURITY INSURANCE AND HAZARD MITIGATION National Flood Insurance Program FLOOD MITIGATION ASSISTANCE § 78.6 Flood...

  13. Mobilising around a risk : from alarm raisers to alarm carriers

    E-print Network

    Paris-Sud XI, Université de

    the question of alarm raisers. We have been able to show how the configuration that we have labelled "vigilance French agency for food safety. #12;risk (BSE, GMO), previously "political" dangers are re

  14. Ultrasonic Technology in Duress Alarms.

    ERIC Educational Resources Information Center

    Lee, Martha A.

    2000-01-01

    Provides the pros and cons of the most commonly used technologies in personal duress alarm systems in the school environment. Discussed are radio frequency devices, infrared systems, and ultrasonic technology. (GR)

  15. Use of pagers with an alarm escalation system to reduce cardiac monitor alarm signals.

    PubMed

    Cvach, Maria M; Frank, Robert J; Doyle, Pete; Stevens, Zeina Khouri

    2014-01-01

    Alarm fatigue desensitizes nurses to alarm signals and presents potential for patient harm. This project describes an innovative method of communicating cardiac monitor alarms to pagers using an alarm escalation algorithm. This innovation was tested on 2 surgical progressive care units over a 6-month period. There was a significant decrease in mean frequency and duration of high-priority monitor alarms and improvement in nurses' perception of alarm response time, using this method of alarm communication. PMID:23963169

  16. COMPARISON OF RADIO-FREQUENCY INTERFERENCE MITIGATION STRATEGIES FOR DISPERSED PULSE DETECTION

    SciTech Connect

    Hogden, John; Vander Wiel, Scott; Michalak, Sarah [Los Alamos National Laboratory, Los Alamos, New Mexico, NM (United States); Bower, Geoffrey C.; Siemion, Andrew; Werthimer, Daniel [Department of Astronomy, University of California, Berkeley, Berkeley, CA (United States)

    2012-03-10

    Impulsive radio-frequency signals from astronomical sources are dispersed by the frequency-dependent index of refraction of the interstellar media and so appear as chirped signals when they reach Earth. Searches for dispersed impulses have been limited by false detections due to radio-frequency interference (RFI) and, in some cases, artifacts of the instrumentation. Many authors have discussed techniques to excise or mitigate RFI in searches for fast transients, but comparisons between different approaches are lacking. This work develops RFI mitigation techniques for use in searches for dispersed pulses, employing data recorded in a 'Fly's Eye' mode of the Allen Telescope Array as a test case. We gauge the performance of several RFI mitigation techniques by adding dispersed signals to data containing RFI and comparing false alarm rates at the observed signal-to-noise ratios of the added signals. We find that Huber filtering is most effective at removing broadband interferers, while frequency centering is most effective at removing narrow frequency interferers. Neither of these methods is effective over a broad range of interferers. A method that combines Huber filtering and adaptive interference cancelation provides the lowest number of false positives over the interferers considered here. The methods developed here have application to other searches for dispersed pulses in incoherent spectra, especially those involving multiple beam systems.

  17. The strategic nature of false recognition in the DRM paradigm.

    PubMed

    Miller, Michael B; Guerin, Scott A; Wolford, George L

    2011-09-01

    The false memory effect produced by the Deese/Roediger & McDermott (DRM) paradigm is reportedly impervious to warnings to avoid false alarming to the critical lures (D. A. Gallo, H. L. Roediger III, & K. B. McDermott, 2001). This finding has been used as strong evidence against models that attribute the false alarms to a decision process (e.g., M. B. Miller & G. L. Wolford, 1999). In this report, the authors clarify their earlier article and suggest that subjects establish only 2 underlying criteria for a recognition judgment, a liberal criterion for items that seem to be related to 1 of the study list themes and a conservative criterion for items that do not seem to be related. They demonstrate that warnings designed on the basis of these underlying criteria are effective in significantly suppressing the false recognition effect, suggesting that strategic control of the retrieval response does play a role in the DRM paradigm. PMID:21767060

  18. True or False

    NSDL National Science Digital Library

    Science Update (; )

    2005-04-18

    This Science Update introduces students to a study suggests that correcting false information can sometimes make matters worse. The researchers found that when people were told a statement was false, they remembered the statement itself much better than the warning.

  19. Is alarm calling risky? Marmots avoid calling from risky places.

    PubMed

    Collier, Travis C; Blumstein, Daniel T; Girod, Lewis; Taylor, Charles E

    2010-12-01

    Alarm calling is common in many species. A prevalent assumption is that calling puts the vocalizing individual at increased risk of predation. If calling is indeed costly, we need special explanations for its evolution and maintenance. In some, but not all species, callers vocalize away from safety and thus may be exposed to an increased risk of predation. However, for species that emit bouts with one or a few calls, it is often difficult to identify the caller and find the precise location where a call was produced. We analyzed the spatial dynamics of yellow-bellied marmot (Marmota flaviventris) alarm calling using an acoustic localization system to determine the location from which calls were emitted. Marmots almost always called from positions close to the safety of their burrows, and, if they produced more than one alarm call, tended to end their calling bouts closer to safety than they started them. These results suggest that for this species, potential increased predation risk from alarm calling is greatly mitigated and indeed calling may have limited predation costs. PMID:21116460

  20. Is alarm calling risky? Marmots avoid calling from risky places

    PubMed Central

    Collier, Travis C.; Blumstein, Daniel T.; Girod, Lewis; Taylor, Charles E.

    2010-01-01

    Alarm calling is common in many species. A prevalent assumption is that calling puts the vocalizing individual at increased risk of predation. If calling is indeed costly, we need special explanations for its evolution and maintenance. In some, but not all species, callers vocalize away from safety and thus may be exposed to an increased risk of predation. However, for species that emit bouts with one or a few calls, it is often difficult to identify the caller and find the precise location where a call was produced. We analyzed the spatial dynamics of yellow-bellied marmot (Marmota flaviventris) alarm calling using an acoustic localization system to determine the location from which calls were emitted. Marmots almost always called from positions close to the safety of their burrows, and, if they produced more than one alarm call, tended to end their calling bouts closer to safety than they started them. These results suggest that for this species, potential increased predation risk from alarm calling is greatly mitigated and indeed calling may have limited predation costs. PMID:21116460

  1. The Best Ever Alarm System Toolkit

    SciTech Connect

    Kasemir, Kay [ORNL; Chen, Xihui [ORNL; Danilova, Katia [ORNL

    2009-01-01

    Learning from our experience with the standard Experimental Physics and Industrial Control System (EPICS) alarm handler (ALH) as well as a similar intermediate approach based on script-generated operator screens, we developed the Best Ever Alarm System Toolkit (BEAST). It is based on Java and Eclipse on the Control System Studio (CSS) platform, using a relational database (RDB) to store the configuration and log actions. It employs a Java Message Service (JMS) for communication between the modular pieces of the toolkit, which include an Alarm Server to maintain the current alarm state, an arbitrary number of Alarm Client user interfaces (GUI), and tools to annunciate alarms or log alarm related actions. Web reports allow us to monitor the alarm system performance and spot deficiencies in the alarm configuration. The Alarm Client GUI not only gives the end users various ways to view alarms in tree and table, but also makes it easy to access the guidance information, the related operator displays and other CSS tools. It also allows online configuration to be simply modified from the GUI. Coupled with a good "alarm philosophy" on how to provide useful alarms, we can finally improve the configuration to achieve an effective alarm system.

  2. Astrophysical False Positives Encountered in Wide-Field Transit Searches

    Microsoft Academic Search

    David Charbonneau; Timothy M. Brown; Edward W. Dunham; David W. Latham; Dagny L. Looper; Georgi Mandushev

    2004-01-01

    Wide-field photometric transit surveys for Jupiter-sized planets are inundated by astrophysical false positives, namely systems that contain an eclipsing binary and mimic the desired photometric signature. We discuss several examples of such false alarms. These systems were initially identified as candidates by the PSST instrument at Lowell Observatory. For three of the examples, we present follow-up spectroscopy that demonstrates that

  3. Xcel Energy implements an alarm management strategy

    SciTech Connect

    Bass, J.; Abreu, G. [Xcel Energy (United States)

    2007-11-15

    Not so long ago, Xcel Energy's Pawnee Station, a 505 MW coal-fired generating station in Brush, Colorado, USA was commonly generating 300 to 400 alarms per 8-hour shift. The article describes how the alarm system was revised and improved by tackling alarm dead-bands, and rationalising alarms for routine events. Operators are trained to understand the functions of alarm management components, their use and response, and obtain feedback. Today the power station reports about one alarm per hour. 3 photos.

  4. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms. (a) Each alarm required by § 130.460 of this...

  5. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms. (a) Each alarm required by § 130.460 of this...

  6. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms. (a) Each alarm required by § 130.460 of this...

  7. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms. (a) Each alarm required by § 130.460 of this...

  8. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms. (a) Each alarm required by § 130.460 of this...

  9. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Monitoring Devices § 876.2040 Enuresis alarm. (a) Identification. An enuresis alarm is a...

  10. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Monitoring Devices § 876.2040 Enuresis alarm. (a) Identification. An enuresis alarm is a...

  11. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Monitoring Devices § 876.2040 Enuresis alarm. (a) Identification. An enuresis alarm is a...

  12. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Monitoring Devices § 876.2040 Enuresis alarm. (a) Identification. An enuresis alarm is a...

  13. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Monitoring Devices § 876.2040 Enuresis alarm. (a) Identification. An enuresis alarm is a...

  14. Hornbills can distinguish between primate alarm calls.

    PubMed Central

    Rainey, Hugo J.; Zuberbühler, Klaus; Slater, Peter J. B.

    2004-01-01

    Some mammals distinguish between and respond appropriately to the alarm calls of other mammal and bird species. However, the ability of birds to distinguish between mammal alarm calls has not been investigated. Diana monkeys (Cercopithecus diana) produce different alarm calls to two predators: crowned eagles (Stephanoaetus coronatus) and leopards (Panthera pardus). Yellow-casqued hornbills (Ceratogymna elata) are vulnerable to predation by crowned eagles but are not preyed on by leopards and might therefore be expected to respond to the Diana monkey eagle alarm call but not to the leopard alarm call. We compared responses of hornbills to playback of eagle shrieks, leopard growls, Diana monkey eagle alarm calls and Diana monkey leopard alarm calls and found that they distinguished appropriately between the two predator vocalizations as well as between the two Diana monkey alarm calls. We discuss possible mechanisms leading to these responses. PMID:15209110

  15. 30 CFR 77.311 - Alarm devices.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES Thermal Dryers § 77.311 Alarm devices. Thermal dryer systems shall be equipped with both audible and visual alarm devices which are set to...

  16. Voice Alarm System in Emergency Evacuation

    Microsoft Academic Search

    Huiyang Li; Xianghong Sun; Kan Zhang

    2007-01-01

    Under emergency situations such as large fires, floods, hazardous-materials, etc., incident commander have to manage an evacuation\\u000a in help of alarm systems (audible or\\/and visual notification). This article reviewed selected literature relevant to ergonomics\\u000a of alarm systems (esp. voice alarm system) in emergency evacuation, and occupants’ response behavior to the voice alarm. The\\u000a literature cited is of world-wide origin, and

  17. Improved alarm tracking for better accountability

    SciTech Connect

    Nemesure, S.; Marr, G.; Shrey, T.; Kling, N.; Hammons, L.; Ingrassia, P.; D'Ottavio, T.

    2011-03-28

    An alarm system is a vital component of any accelerator, as it provides a warning that some element of the system is not functioning properly. The severity and age of the alarm may sometimes signify whether urgent or deferred attention is required. For example, older alarms may be given a lower priority if an assumption is made that someone else is already investigating it, whereas those of higher severity or alarms that are more current may indicate the need for an immediate response. The alarm history also provides valuable information regarding the functionality of the overall system, thus careful tracking of these data is likely to improve response time, remove uncertainty about the current status and assist in the ability to promptly respond to the same warning/trigger in the future. Since one goal of every alarm display is to be free of alarms, a clear and concise presentation of an alarm along with useful historic annotations can help the end user address the warning more quickly, thus expediting the elimination of such alarm conditions. By defining a discrete set of very specific alarm management states and by utilizing database resources to maintain a complete and easily accessible alarm history, we anticipate facilitated work flow due to more efficient operator response and management of alarms.

  18. Semantic Alarms in Medical Device Networks

    Microsoft Academic Search

    Albert Goldfain; Atanu Roy Chowdhury; Min Xu; Jim DelloStritto; Jonathan Bona; Blue Highway

    We describe preliminary work on semantic alarms, a framework for context-sensitive clinical alerts. Semantic alarms are intended for deployment in a multi-parameter vital sign monitoring system. Requirements for device and data interoperability within this system are discussed. Extended examples are provided for sepsis and congestive heart failure disease state alarms.

  19. FIRE ALARM SYSTEMS AND PROCEDURES FOR

    E-print Network

    Ullmer, Brygg

    FIRE ALARM SYSTEMS AND PROCEDURES FOR BUILDING EVACUATION FRED C. FREY COMPUTING SERVICES CENTER CLAIRE M. MOREAU #12;i Table of Contents Page Introduction 1 Fire Alarm Systems B Simplex and FM-200 2 of the Fire Alarm Systems 8 Automatic Activation 8 Manual Activation 9 Results of Fire Systems' Activations 10

  20. CFN Bldg 735 Safety Awareness Fire Alarms

    E-print Network

    Ohta, Shigemi

    activate the Building Fire/Evacuation Alarm System. From a safe location, call the BNL emergencyCFN Bldg 735 Safety Awareness Fire Alarms: There are 2 different fire alarms in the CFN. The first being the normal ringing in the event of a fire. The second one is a temporal 3 (distinct ring) followed

  1. INEL central alarm monitoring and assessment system

    SciTech Connect

    Niper, E.D.

    1983-07-01

    This paper concerns the design and development of a centrally located security monitoring and assessment system for processing alarms at several remote facilities. The system provides both live and recorded CCTV assessment of alarmed areas. Computer controlled video disc recordings are made at the time the alarm is activated. Alarming areas are displayed on a color graphics monitor and an operator interacts through an overlying transparent touch panel. Computer-generated messages are also displayed to assist and inform the operator. A bidirectional, frequency-multiplexed cable system provides digital alarm information, video control commands, and several channels of video from each remote facility.

  2. Minimum fire alarm sound pressure level for elder care centres

    Microsoft Academic Search

    L. T. Wong; L. K. Leung

    2005-01-01

    Some building occupants cannot hear the activated fire alarm nor can they recognize the alarm, although the fire alarm system has been installed to the acceptable standard. Measurements of fire alarm sound pressure levels (SPLs) in five elder care centres showed that the sound output of a fire alarm can be depreciated after installation. The alarm level of a new

  3. hp calculators HP 50g Setting an Alarm

    E-print Network

    Vetter, Frederick J.

    hp calculators HP 50g Setting an Alarm The TIME menu Practice setting alarms #12;hp calculators HP 50g Setting an alarm hp calculators - 2 - HP 50g Setting an alarm The TIME menu The TIME menu HP 50g Setting an alarm hp calculators - 3 - HP 50g Setting an alarm Press 6to choose ALRM

  4. The roles of spreading activation and retrieval mode in producing false recognition in the DRM paradigm

    Microsoft Academic Search

    Michelle L. Meade; Jason M. Watson; David A. Balota; Henry L. Roediger III

    2007-01-01

    The nature of persisting spreading activation from list presentation in eliciting false recognition in the Deese–Roediger–McDermott (DRM) paradigm was examined in two experiments. We compared the time course of semantic priming in the lexical decision task (LDT) and false alarms in speeded recognition under identical study and test conditions. The results revealed priming on the LDT only when a test

  5. The Roles of Spreading Activation and Retrieval Mode in Producing False Recognition in the DRM Paradigm

    ERIC Educational Resources Information Center

    Meade, Michelle L.; Watson, Jason M.; Balota, David A.; Roediger, Henry L., III

    2007-01-01

    The nature of persisting spreading activation from list presentation in eliciting false recognition in the Deese-Roediger-McDermott (DRM) paradigm was examined in two experiments. We compared the time course of semantic priming in the lexical decision task (LDT) and false alarms in speeded recognition under identical study and test conditions. The…

  6. Video systems for alarm assessment

    SciTech Connect

    Greenwoll, D.A.; Matter, J.C. (Sandia National Labs., Albuquerque, NM (United States)); Ebel, P.E. (BE, Inc., Barnwell, SC (United States))

    1991-09-01

    The purpose of this NUREG is to present technical information that should be useful to NRC licensees in designing closed-circuit television systems for video alarm assessment. There is a section on each of the major components in a video system: camera, lens, lighting, transmission, synchronization, switcher, monitor, and recorder. Each section includes information on component selection, procurement, installation, test, and maintenance. Considerations for system integration of the components are contained in each section. System emphasis is focused on perimeter intrusion detection and assessment systems. A glossary of video terms is included. 13 figs., 9 tabs.

  7. Alarm upgrade meets new standards.

    PubMed

    2004-11-01

    When Bedford Hospital NHS Trust decided to replace its ageing and increasingly unreliable fire detection and alarm system, it was looking to achieve more than just compliance with the latest regulations. It wanted a flexible, state-of-the-art system that would not only meet its current requirements but would also be easy to adapt and inexpensive to maintain. The pound 1 million Gent Vigilon fire system now operating across the site has given it just that. The 15-month long project to install the system was completed without a single ward or operating theatre having to be shut down. PMID:15575551

  8. Alarm sensor apparatus for closures

    DOEpatents

    Carlson, James A. (Thornton, CO); Stoddard, Lawrence M. (Arvada, CO)

    1986-01-01

    An alarm sensor apparatus for closures such as doors and windows, and particularly for closures having loose tolerances such as overhead doors, garage doors or the like, the sensor apparatus comprising a pair of cooperating bracket members, one being attached to the door facing or frame work and the other to the door member, two magnetic sensor elements carried by said bracket members, the bracket members comprising a pair of cooperating orthogonal guide slots and plates and a stop member engageable with one of the sensors for aligning the sensors with respect to each other in all three orthogonal planes when the door is closed.

  9. Alarm sensor apparatus for closures

    DOEpatents

    Carlson, J.A.; Stoddard, L.M.

    1984-01-31

    An alarm sensor apparatus for closures such as doors and windows, and particularly for closures having loose tolerances such as overhead doors, garage doors or the like, the sensor apparatus comprising a pair of cooperating bracket members, one being attached to the door facing or framework and the other to the door member, two magnetic sensor elements carried by said bracket members, the bracket members comprising a pair of cooperating orthogonal guide slots and plates and a stop member engageable with one of the sensors for aligning the sensors with respect to each other in all three orthogonal planes when the door is closed.

  10. Alarm system management: evidence-based guidance encouraging direct measurement of informativeness to improve alarm response.

    PubMed

    Rayo, Michael F; Moffatt-Bruce, Susan D

    2015-04-01

    Although there are powerful incentives for creating alarm management programmes to reduce 'alarm fatigue', they do not provide guidance on how to reduce the likelihood that clinicians will disregard critical alarms. The literature cites numerous phenomena that contribute to alarm fatigue, although many of these, including total rate of alarms, are not supported in the literature as factors that directly impact alarm response. The contributor that is most frequently associated with alarm response is informativeness, which is defined as the proportion of total alarms that successfully conveys a specific event, and the extent to which it is a hazard. Informativeness is low across all healthcare applications, consistently ranging from 1% to 20%. Because of its likelihood and strong evidential support, informativeness should be evaluated before other contributors are considered. Methods for measuring informativeness and alarm response are discussed. Design directions for potential interventions, as well as design alternatives to traditional alarms, are also discussed. With the increased attention and investment in alarm system management that alarm interventions are currently receiving, initiatives that focus on informativeness and the other evidence-based measures identified will allow us to more effectively, efficiently and reliably redirect clinician attention, ultimately improving alarm response. PMID:25734193

  11. Alarm toe switch. [Patent application

    DOEpatents

    Ganyard, F.P.

    1980-11-18

    An alarm toe switch inserted within a shoe for energizing an alarm circuit in a covert manner includes an insole mounting pad into which a miniature reed switch is fixedly molded. An elongated slot perpendicular to the reed switch is formed in the bottom surface of the mounting pad. A permanent cylindrical magnet positioned in the forward portion of the slot with a diameter greater than the pad thickness causes a bump above the pad. A foam rubber block is also positioned in the slot rearwardly of the magnet and holds the magnet in normal inoperative relation. A non-magnetic support plate covers the slot and holds the magnet and foam rubber in the slot. The plate minimizes bending and frictional forces to improve movement of the magnet for reliable switch activation. The bump occupies the knuckle space beneath the big toe. When the big toe is scrunched rearwardly the magnet is moved within the slot relative to the reed switch, thus magnetically activating the switch. When toe pressure is released the foam rubber block forces the magnet back into normal inoperative position to deactivate the reed switch.

  12. Testing alarm-based earthquake predictions

    Microsoft Academic Search

    J. Douglas Zechar; Thomas H. Jordan

    2008-01-01

    SUMMARY Motivated by a recent resurgence in earthquake predictability research, we present a method for testing alarm-based earthquake predictions. The testing method is based on the Molchan diagram—a plot of miss rate and fraction of space-time occupied by alarm—and is applicable to a wide class of predictions, including probabilistic earthquake forecasts varying in space, time, and magnitude. A single alarm

  13. Recommendations for the LHC safety alarm system

    Microsoft Academic Search

    H Laeger

    1999-01-01

    A working group was set up to define the LHC safety alarm system, also known as Alarm-of-Level-3-System (AL3S). The mandate asked for recommendations to be elaborated on four items: the overall concept of the AL3S for machine and experiments, the transmission and display of safety alarms, the AL3S during civil engineering construction, and the transition from the present LEP to

  14. D0 Cryogenic Auto Dialing Alarm System

    SciTech Connect

    Markely, D.; /Fermilab

    1992-08-03

    The Automatic Dialing system purchased by D0 is intended to help make the D0 cryogenic system operate unattended by cryogenic operating personnel. The auto dialer is completely programmable and is voice synthesized. The auto dialer was purchased with 32 bistable inputs, but is expandable to 64 bistable inputs with the purchase of more electronic cards at an approximate cost of $260 per card (8 bistable inputs). The auto dialer also has the capability for analog inputs, analog outputs, and bistable outputs none of which D0 uses or intends to use. The auto dialer can be called on its operating phone line to describe current alarms with the proper password. The Auto Dialer can dial lab extensions, lab pagers, and any number outside the lab. It cannot dial a long distance pager. The auto dialer monitors alarms and alarm conditions via the T1565 PLC, upon an alarm condition it initiates a phone calling sequence of preprogrammed lists with assigned priorities. When someone is reached, the auto dialer describes the individual alarm it is calling for, by a preprogrammed set of words for that individual alarm, spoken by a female voice. The called person then has a chance to acknowledge the alarm over the telephone, if the alarm is not acknowledged the auto dialer will disconnect and call the next person on the list. The auto dialer will continue to cycle through the list until it is acknowledged, reset, or the alarm condition no longer exists.

  15. Neural Mechanisms of Alarm Pheromone Signaling

    PubMed Central

    Enjin, Anders; Suh, Greg Seong-Bae

    2013-01-01

    Alarm pheromones are important semiochemicals used by many animal species to alert conspecifics or other related species of impending danger. In this review, we describe recent developments in our understanding of the neural mechanisms underlying the ability of fruit flies, zebrafish and mice to mediate the detection of alarm pheromones. Specifically, alarm pheromones are detected in these species through specialized olfactory subsystems that are unique to the chemosensitive receptors, second messenger-signaling and physiology. Thus, the alarm pheromones appear to be detected by signaling mechanisms that are distinct from those seen in the canonical olfactory system. PMID:23471444

  16. Source Injection Distribution Functions for Alarm Algorithm Testing

    SciTech Connect

    Robinson, Sean M.; Siciliano, Edward R.; Schweppe, John E.

    2008-05-15

    The development and testing of improved alarm algorithms is an ongoing priority of the Radiation Portal Monitor Project (RPMP) at Pacific Northwest National Laboratory (PNNL). Improved algorithms have the potential to reduce the impediments that radiation screening presents to the flow of commerce, without affecting the detection sensitivity to sources of interest. However, assessing alarm-algorithm performance involves careful calculation of detection probabilities and nuisance/false alarm rates for any algorithm that may be used in the field. To establish statistical confidence, such a task requires a large amount of data from drive-through (or “dynamic”) scenarios both with, and without, radioactive sources of interest present; but obtaining actual field data to meet this need is not feasible. Instead, an “injection-study” procedure is being used to approximate how the profiles of actual drive-through commercial data would change with the presence of sources of interest. This procedure adds net-counts from a pre-defined set of simulated sources to raw, gross-count drive-through data randomly selected from archived cargo data collected from deployed radiation portal monitors (RPMs). (PIET-43741-TM-480)

  17. Mars Rotate (False Color)

    NSDL National Science Digital Library

    NASA/Goddard Space Flight Center Scientific Visualization Studio

    This site from NASA's Goddard Space Flight Center features an animation of Mars rotating. The visualization was created using data collected by the Mars Orbiting Laser Altimeter (MOLA) on board the Mars Global Surveyor. The animation uses false color to highlight topography, specifically the Hellas Basin, Terra Meridiani, the Tharsis rise, and Lucus Planum. The site also provides still images of the same features.

  18. Alarm- And Power-Monitoring System

    NASA Technical Reports Server (NTRS)

    Stute, Rob; Galloway, F. Houston; Swindle, Bob; Bierman, Tracy Alan; Medelius, Pedro

    1994-01-01

    Electronic central monitoring system, called Remote Monitor Alarm System, RMAS, used to monitor malfunction alarms and power supplies of remotely located equipment modules of transmitting and receiving equipment in fiber-optic communication network at Kennedy Space Center. Includes central monitoring unit at location convenient for technicians, plus remote terminal unit at each remote site containing equipment to be monitored.

  19. AMETHYST: automatic alarm assessment becoming a reality

    Microsoft Academic Search

    M. Horner; H. Sage; G. Leach

    1998-01-01

    The aim of the AMETHYST (AutoMatic Event auTHentication SYSTems) project is to encourage the development of a high performance perimeter detection system which combines Video Motion Detection (VMD) technology with another type of Perimeter Intrusion Detection System (PIDS). AMETHYST will automatically assess the cause of PIDS alarms and pass to an operator those alarms likely to be caused by an

  20. AMETHYST: automatic alarm assessment: operational experience

    Microsoft Academic Search

    Michael Horner; Graham Leach; T. O'Dwyer

    2000-01-01

    The aim of the AMETHYST (Automatic Event Authentication Systems) project is to encourage the development of a high-performance perimeter detection system by using video assessment to enhance the Perimeter Intrusion Detection System (PIDS). AMETHYST will automatically assess the cause of all PIDS alarms and pass to an operator only those alarms that are likely to be caused by an intruder.

  1. AMETHYST: automatic alarm assessment: becoming a reality

    Microsoft Academic Search

    M. Horner; K. Sage; G. Leach

    1997-01-01

    The aim of the AMETHYST (AutoMatic Event auTHentication SYSTems) project is to encourage the development of a high performance perimeter detection system which combines Video Motion Detection (VMD) technology with another type of Perimeter Intrusion Detection System (PIDS). AMETHYST will automatically assess the cause of all PIDS alarms and pass to an operator only those alarms which are likely to

  2. LASL upgraded alarm system functional requirements

    Microsoft Academic Search

    B. L. Hartway; E. N. Shaskey

    1977-01-01

    This document defines and describes the functional requirements to successfully provide Los Alamos Scientific Laboratory with a combined security and fire alarm system that will satisfy the operational needs of various users and provide compliance with applicable codes and Energy Research and Development Administration security and fire protection requirements. The four major subsystems of the upgraded Laboratory alarm system are

  3. T-Farm complex alarm upgrades

    SciTech Connect

    Roberts, J.B.

    1995-01-01

    The alarm and controls associated with the T, TX, and TY farms are located in the 242-T control room. The design data for replacement and upgrades of the alarm panels is in this document. This task was canceled previous to the 90% design review point.

  4. Criticality alarm system for plutonium process operations

    SciTech Connect

    Tyree, W H; Urano, H

    1981-05-25

    A criticality alarm system using neutron detection is described. The system includes a neutron detection unit with an internal operational testing mode. The unit uses a Li/sup 6/F foil for the production of alpha particles from a thermal neturon flux, a thorium-230 alpha particle source for the continuous monitoring of the raidation detection circuits, and an internal clock which produces an alarmed condition if the detector amplifier circuit fails. This neutron detector unit is designed to replace the existing neutron detector in the criticality alarm systems at Rocky Flats. Coincidence circuits, interface system and audio signal generators used in the output of the alarm system are described. The system meets the criteria for the American National Standards and the USDOE Manual Chapter for detection, alarm, and signal output requirements.

  5. Diabetes: What's True and False?

    MedlinePLUS

    ... which are false. Eating too much sugar causes diabetes. False: Type 1 diabetes happens when the cells ... completely proven to be true yet. People with diabetes can never eat sweets. False: You can have ...

  6. Diabetes: What's True and False?

    MedlinePLUS

    ... Digestive System How the Body Works Main Page Diabetes: What's True and False? KidsHealth > Kids > Diabetes Center > ... True or False: Eating Too Much Sugar Causes Diabetes False: When kids get type 1 diabetes , it's ...

  7. 47 CFR 80.317 - Radiotelegraph and radiotelephone alarm signals.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Radiotelegraph and radiotelephone alarm signals. 80.317 Section 80.317 Telecommunication... Radiotelegraph and radiotelephone alarm signals. (a) The international radiotelegraph alarm signal consists of a series of twelve...

  8. 24 CFR 3280.208 - Smoke alarm requirements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Labeling. Each smoke alarm required under paragraph...Multiple Station Smoke Alarms, dated January 4...Smoke Detectors for Fire Protective Signaling Systems, dated January 4...b) Required smoke alarm locations....

  9. 24 CFR 3280.208 - Smoke alarm requirements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Labeling. Each smoke alarm required under paragraph...Multiple Station Smoke Alarms, dated January 4...Smoke Detectors for Fire Protective Signaling Systems, dated January 4...b) Required smoke alarm locations....

  10. 24 CFR 3280.208 - Smoke alarm requirements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Labeling. Each smoke alarm required under paragraph...Multiple Station Smoke Alarms, dated January 4...Smoke Detectors for Fire Protective Signaling Systems, dated January 4...b) Required smoke alarm locations....

  11. Fuel handling exclusion zone established to prevent spurious alarms to CAS neutron detectors in the IFSF

    SciTech Connect

    S. S. Kim; J. W. Sterbentz

    2000-09-17

    An experimental and calculational study has been performed to understand and prevent inadvertent activation of the criticality alarm system (CAS) from fuel-handling operations at the Irradiated Fuel Storage Facility. In conjunction with the study, the CAS neutron detectors were tested to verify the design specifications for gamma rejection capability and zero response limit. A minimum physical restrictive boundary around the CAS location was established based on a gamma ray dose rate limit of 10 rad/hr. The canister loaded with spent nuclear fuel must be moved in the area outside the exclusion zone so as not to trigger a false alarm from the CAS detectors.

  12. Fuel Handling Exclusion Zone Established to Prevent Spurious Alarms to CAS Neutron Detectors in the IFSF

    SciTech Connect

    Kim, Soon Sam; Sterbentz, James William

    2000-09-01

    An experimental and calculational study has been performed to understand and prevent inadvertent activation of the criticality alarm system (CAS) from fuel-handling operations at the Irradiated Fuel Storage Facility. In conjunction with the study, the CAS neutron detectors were tested to verify the design specifications for gamma rejection capability and zero response limit. A minimum physical restrictive boundary around the CAS location was established based on a gamma ray dose rate limit of 10 rad/hr. The canister loaded with spent nuclear fuel must be moved in the area outside the exclusion zone so as not to trigger a false alarm from the CAS detectors.

  13. Moon - False Color Mosaic

    NASA Technical Reports Server (NTRS)

    1992-01-01

    This false-color photograph is a composite of 15 images of the Moon taken through three color filters by Galileo's solid-state imaging system during the spacecraft's passage through the Earth-Moon system on December 8, 1992. When this view was obtained, the spacecraft was 425,000 kilometers (262,000 miles) from the Moon and 69,000 kilometers (43,000 miles) from Earth. The false-color processing used to create this lunar image is helpful for interpreting the surface soil composition. Areas appearing red generally correspond to the lunar highlands, while blue to orange shades indicate the ancient volcanic lava flow of a mare, or lunar sea. Bluer mare areas contain more titanium than do the orange regions. Mare Tranquillitatis, seen as a deep blue patch on the right, is richer in titanium than Mare Serenitatis, a slightly smaller circular area immediately adjacent to the upper left of Mare Tranquillitatis. Blue and orange areas covering much of the left side of the Moon in this view represent many separate lava flows in Oceanus Procellarum. The small purple areas found near the center are pyroclastic deposits formed by explosive volcanic eruptions. The fresh crater Tycho, with a diameter of 85 kilometers (53 miles), is prominent at the bottom of the photograph, where part of the Moon's disk is missing.

  14. INEL central alarm monitoring and assessment system

    SciTech Connect

    Niper, E.D.

    1983-01-01

    This paper concerns the design and development of a centrally located security monitoring and assessment system for processing alarms at several remote facilities. The system provides both live and recorded CCTV assessment of alarmed areas. Computer controlled video disc recordings are displayed on a color graphics monitor and an operator interacts through an overlying transparent touch panel. Computer generated messages are also displayed to assist and inform the operator. A bidirectional, frequency-multiplexed cable system provides digital alarm information, video control commands, and several channels of video from each remote facility.

  15. 14 CFR 1216.309 - Mitigation and monitoring.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 2013-01-01 false Mitigation and monitoring. 1216.309 Section 1216.309 Aeronautics...Policy Act (NEPA) § 1216.309 Mitigation and monitoring. When the analysis proceeds to an EA or EIS and mitigation...

  16. 14 CFR 1216.309 - Mitigation and monitoring.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 2014-01-01 false Mitigation and monitoring. 1216.309 Section 1216.309 Aeronautics...Policy Act (NEPA) § 1216.309 Mitigation and monitoring. When the analysis proceeds to an EA or EIS and mitigation...

  17. Time-Memory Trade-Os: False Alarm Detection Using Checkpoints (Extended Version?)

    Microsoft Academic Search

    Gildas Avoine; Pascal Junod; Philippe Oechslin

    2005-01-01

    Since the original publication of Martin Hellman's cryptanalytic time-memory trade- o, a few improvements on the method have been suggested. In all these variants, the cryptanalysis time decreases with the square of the available memory. However, a large amount of work is wasted during the cryptanalysis process due to so-called \\

  18. Time-Memory Trade-Offs: False Alarm Detection Using Checkpoints

    Microsoft Academic Search

    Gildas Avoine; Pascal Junod; Philippe Oechslin

    2005-01-01

    Since the original publication of Martin Hellman's cryptan- alytic time-memory trade-o, a few improvements on the method have been suggested. In all these variants, the cryptanalysis time decreases with the square of the available memory. However, a large amount of work is wasted during the cryptanalysis process due to so-called \\

  19. False alarms, real challenges--one university's communication response to the 2001 anthrax crisis.

    PubMed

    Clarke, Christopher E; Chess, Caron

    2006-01-01

    Considerable research exists on how government agencies at the federal, state, and local levels communicated during the fall 2001 anthrax attacks. However, there is little research on how other institutions handled this crisis, in terms of their response to potential anthrax contamination (aka "white powder scares") and their approach to disseminating important health and safety information. In this article, we investigate a major university's communication response to the anthrax crisis. First, we describe its communication experiences relating to a large white powder scare that occurred in October 2001. Second, we describe the university's broader communication efforts in terms of several important elements of risk communication research, including influence of source attributes, key messages, preferred channels, responses to information requests, and organizational influences. This study underlines that an institution does not have to be directly affected by a crisis to find itself on the communication "front lines." Moreover, other institutions may find it useful to learn from the experiences of this university, so that they may communicate more effectively during future crises. PMID:16545026

  20. Etomidate as an induction agent in septic patients: red flags or false alarms?

    PubMed

    Kulstad, Erik B; Kalimullah, Ejaaz A; Tekwani, Karis L; Courtney, D Mark

    2010-05-01

    Despite its widespread use in North America and many other parts of the world, the safety of etomidate as an induction agent for rapid sequence intubation in septic patients is still debated. In this article, we evaluate the current literature on etomidate, review its clinical history, and discuss the controversy regarding its use, especially in sepsis. We address eight questions: (i) When did concern over the safety of etomidate first arise? (ii) What is the mechanism by which etomidate is thought to affect the adrenal axis? (iii) How has adrenal insufficiency in relation to etomidate use been defined or identified in the literature? (iv) What is the evidence that single dose etomidate is associated with subsequent adrenal-cortisol dysfunction? (v) What is the clinical significance of adrenal insufficiency or dysfunction associated with single dose etomidate, and where are the data that support or refute the contention that single-dose etomidate is associated with increased mortality or important post emergency department (ED) clinical outcomes? (vi) How should etomidate's effects in septic patients best be measured? (vii) What are alternative induction agents and what are the advantages and disadvantages of these agents relative to etomidate? (viii) What future work is needed to further clarify the characteristics of etomidate as it is currently used in patients with sepsis? We conclude that the observational nature of almost all available data suggesting adverse outcomes from etomidate does not support abandoning its use for rapid sequence induction. However, because we see a need to balance theoretical harms and benefits in the presence of data supporting the non-inferiority of alternative agents without similar theoretical risks associated with them, we suggest that the burden of proof to support continued widespread use may rest with the proponents of etomidate. We further suggest that practitioners become familiar with the use of more than one agent while awaiting further definitive data. PMID:20823967

  1. An Experience Improving Intrusion Detection Systems False Alarm Ratio by Using Honeypot

    E-print Network

    Bentahar, Jamal

    . GIDO is the specification of messaging as its encoded content is either some particular occurrence the intrusion detection system, generates events based on the traffic thereon and handovers them in GIDO format

  2. Finding The Needle: Suppression of False Alarms in Large Intrusion Detection Data Sets

    E-print Network

    Thurimella, Ramki

    network compromises contin- ues to grow. Increasingly, the trend is toward profitable cyber crime and more, cyber criminals are organizing and turning their attention to corporate networks with the hopes

  3. Raman water vapour concentration measurements for reduction of false alarms in forest fire detection

    Microsoft Academic Search

    C. Bellecci; P. Gaudio; M. Gelfusa; T. Lo Feudo; A. Malizia; M. Richetta; P. Ventura

    2009-01-01

    Forest fires can be the cause of environmental catastrophe, with the natural outcomes of serious ecological and economic damages, together with the possibility to endanger human safety. At the aim to reduce this catastrophe several author have been shown that the Laser light scattering can be uses to reveals the particulate emitted in the smoke. Infact experimental and theoretical investigations

  4. Video-Based Automatic Incident Detection for Smart Roads: The Outdoor Environmental Challenges Regarding False Alarms

    Microsoft Academic Search

    Mohamed S. Shehata; Jun Cai; Wael Maged Badawy; Tyson W. Burr; Muzamil S. Pervez; Robert J. Johannesson; Alireza Radmanesh

    2008-01-01

    Video-based automatic incident detection (AID) systems are increasingly being used in intelligent transportation systems (ITS). Video-based AID is a promising method of incident detection. However, the accuracy of video-based AID is heavily affected by environmental factors such as shadows, snow, rain, and glare. This paper presents a review of the different work done in the literature to detect outdoor environmental

  5. Reducing False Alarms with Multi-modal Sensing for Pipeline Blockage (Extended)

    E-print Network

    Heidemann, John

    by studying a specific application: blockages in oil flowline common in cold weather. We use pipe skin in the context of a specific example: cold-oil blockages in flowlines in pro- ducing oilfields. A typical oilfield has many kilometers of distribution flowlines that collect crude oil extracted from wellhead

  6. [Secondary effects of drugs. The 1979 Halcion experience in the Netherlands, a false alarm?].

    PubMed

    Meyboom, R H

    1991-01-01

    In the course of 1979 the Netherlands Centre for Monitoring of Adverse Reactions to Drugs (NARD) received a remarkably large number of reports on patients with unusual and complex psychic disturbances, attributed to the use of the then recently marketed hypnotic triazolam. The interpretation of the data was difficult, however, and several questions could at that time not be properly answered. In the past 10 years a specific benzodiazepine withdrawal syndrome has been identified, showing many similarities with the disturbances as reported in association with triazolam. In addition similar adverse experiences with triazolam have been reported in many other countries. Tablets containing 1 mg and 0.5 mg triazolam, as were widely used in the Netherlands, have in the mean time been globally removed from the market. It is concluded that the triazolam syndrome may be explained as a combination of strong benzodiazepine effects and withdrawal phenomena. The ultra short half-life of triazolam and the high doses used may have contributed to the problems as observed in the Netherlands. The signal perceived by the NARD appears to have been a valuable warning, rightly casting doubt on the safety of triazolam and the original dosage recommendations. PMID:1754981

  7. False Alarm Metrics for Human-Robot Interactions in Service Robots

    Microsoft Academic Search

    Rajesh Elara Mohan; Wijerupage Sardha Wijesoma; Carlos Antonio Acosta Calderon; Changjiu Zhou

    2010-01-01

    Human–robot teams combining the complementary capabilities of robots and humans towards solving potentially complex service tasks are gaining widespread popularity. Many of these tasks will involve close interactions between the robot and the human it serves, thereby making safety a crucial parameter. Erroneous interactions that inevitably arises between the human and the robot cause accidents in service robotic applications. Currently,

  8. False alarms and missed events: the impact and origins of perceived inaccuracy in tornado warning systems.

    PubMed

    Ripberger, Joseph T; Silva, Carol L; Jenkins-Smith, Hank C; Carlson, Deven E; James, Mark; Herron, Kerry G

    2015-01-01

    Theory and conventional wisdom suggest that errors undermine the credibility of tornado warning systems and thus decrease the probability that individuals will comply (i.e., engage in protective action) when future warnings are issued. Unfortunately, empirical research on the influence of warning system accuracy on public responses to tornado warnings is incomplete and inconclusive. This study adds to existing research by analyzing two sets of relationships. First, we assess the relationship between perceptions of accuracy, credibility, and warning response. Using data collected via a large regional survey, we find that trust in the National Weather Service (NWS; the agency responsible for issuing tornado warnings) increases the likelihood that an individual will opt for protective action when responding to a hypothetical warning. More importantly, we find that subjective perceptions of warning system accuracy are, as theory suggests, systematically related to trust in the NWS and (by extension) stated responses to future warnings. The second half of the study matches survey data against NWS warning and event archives to investigate a critical follow-up question--Why do some people perceive that their warning system is accurate, whereas others perceive that their system is error prone? We find that subjective perceptions are--in part-a function of objective experience, knowledge, and demographic characteristics. When considered in tandem, these findings support the proposition that errors influence perceptions about the accuracy of warning systems, which in turn impact the credibility that people assign to information provided by systems and, ultimately, public decisions about how to respond when warnings are issued. PMID:25082540

  9. Low false alarm target detection and tracking within strong clutters in outdoor infrared videos

    NASA Astrophysics Data System (ADS)

    Li, Changchun; Si, Jennie; Abousleman, Glen P.

    2010-08-01

    Reliable target detection and tracking within strong clutters in outdoor infrared video sequences present great challenges. This is caused by several artificial and natural conditions, such as luminance change resulted from automatic gain adjustment in the IR camera, and other extreme granularity and uncontrolled environmental factors. In some important applications, the targets of interest include vehicles in motion and people in transit. We propose a new integrated solution to address all these issues. The system is composed of the following components: a region masking algorithm to divide a video frame into reliable and unreliable regions, a novel motion pattern recognition module, and an automatic walking-person recognition module. Such a comprehensive technique makes it possible for real-world outdoor infrared surveillance applications, where environmental interferences are uncontrolled and target motion are complex. Extensive experiments were carried out on real-world outdoor infrared videos provided by General Dynamics. In all tested sequences, the proposed algorithm had successfully detected and tracked the targets consistently throughout the life cycle of the targets, even when some targets were seriously blurred or occluded. Our results show that the proposed algorithm is practical, robust, and reliable for low-quality outdoor infrared videos.

  10. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.470 Fire alarms. (a) Each fire detector and control unit must be of a...

  11. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.470 Fire alarms. (a) Each fire detector and control unit must be of a...

  12. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.470 Fire alarms. (a) Each fire detector and control unit must be of a...

  13. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.470 Fire alarms. (a) Each fire detector and control unit must be of a...

  14. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.470 Fire alarms. (a) Each fire detector and control unit must be of a...

  15. False Position, Double False Position and Cramer's Rule

    ERIC Educational Resources Information Center

    Boman, Eugene

    2009-01-01

    We state and prove the methods of False Position (Regula Falsa) and Double False Position (Regula Duorum Falsorum). The history of both is traced from ancient Egypt and China through the work of Fibonacci, ending with a connection between Double False Position and Cramer's Rule.

  16. Alarm acknowledgement in a nuclear plant control room

    DOEpatents

    Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

    1994-01-01

    Alarm acknowledgment can be made not only at the alarm tile array of a given console but via other touch sensitive alarm indications in the screen displays of the monitoring system at the same or other consoles; also, touching one tile can acknowledge multiple alarm sources.

  17. Clustering intrusion detection alarms to support root cause analysis

    Microsoft Academic Search

    Klaus Julisch

    2003-01-01

    It is a well-known problem that intrusion detection systems overload their human operators by triggering thousands of alarms per day. This paper presents a new approach for handling intrusion detection alarms more efficiently. Central to this approach is the notion that each alarm occurs for a reason, which is referred to as the alarm's root causes. This paper observes that

  18. Chair alarm for patient fall prevention based on gesture recognition and interactivity.

    PubMed

    Knight, Heather; Lee, Jae-Kyu; Ma, Hongshen

    2008-01-01

    The Gesture Recognition Interactive Technology (GRiT) Chair Alarm aims to prevent patient falls from chairs and wheelchairs by recognizing the gesture of a patient attempting to stand. Patient falls are one of the greatest causes of injury in hospitals. Current chair and bed exit alarm systems are inadequate because of insufficient notification, high false-alarm rate, and long trigger delays. The GRiT chair alarm uses an array of capacitive proximity sensors and pressure sensors to create a map of the patient's sitting position, which is then processed using gesture recognition algorithms to determine when a patient is attempting to stand and to alarm the care providers. This system also uses a range of voice and light feedback to encourage the patient to remain seated and/or to make use of the system's integrated nurse-call function. This system can be seamlessly integrated into existing hospital WiFi networks to send notifications and approximate patient location through existing nurse call systems. PMID:19163515

  19. Epidermal `alarm substance' cells of fishes maintained by non-alarm functions: possible

    E-print Network

    Blaustein, Andrew R.

    Epidermal `alarm substance' cells of fishes maintained by non-alarm functions: possible defence Department of Biology, Pennsylvania State University, University Park, PA 16802-5301, USA 5 The Nature by exposure to skin-penetrating pathogens (water moulds: Saprolegnia ferax and Saprolegnia parasitica), skin

  20. Smart container UWB sensor system for situational awareness of intrusion alarms

    DOEpatents

    Romero, Carlos E.; Haugen, Peter C.; Zumstein, James M.; Leach, Jr., Richard R.; Vigars, Mark L.

    2013-06-11

    An in-container monitoring sensor system is based on an UWB radar intrusion detector positioned in a container and having a range gate set to the farthest wall of the container from the detector. Multipath reflections within the container make every point on or in the container appear to be at the range gate, allowing intrusion detection anywhere in the container. The system also includes other sensors to provide false alarm discrimination, and may include other sensors to monitor other parameters, e.g. radiation. The sensor system also includes a control subsystem for controlling system operation. Communications and information extraction capability may also be included. A method of detecting intrusion into a container uses UWB radar, and may also include false alarm discrimination. A secure container has an UWB based monitoring system

  1. Pressurized security barrier and alarm system

    SciTech Connect

    Carver, D.W.

    1994-12-31

    A security barrier for placement across a passageway is made up of interconnected pressurized tubing made up in a grid pattern with openings too small to allow passage. The tubing is connected to a pressure switch, located away from the barrier site, which activates an alarm upon occurrence of a pressure drop. A reinforcing bar is located inside and along the length of the tubing so as to cause the tubing to rupture and set off the alarm upon an intruder`s making an attempt to crimp and seal off a portion of the tubing by application of a hydraulic tool. Radial and rectangular grid patterns are disclosed.

  2. Can false memories spontaneously recover?

    Microsoft Academic Search

    John G. Seamon; Jeffrey R. Berko; Brooke Sahlin; Yi-Lo Yu; Jennifer M. Colker; David H. Gottfried

    2006-01-01

    Can false memories that were suppressed at one time spontaneously recover at a later time? Fuzzy trace theory and activation-monitoring theory predict that false memories in the Deese, Roediger, and McDermott (DRM) procedure become substantially reduced as list learning progresses because participants employ a memory-editing process. It follows that if the editing process is rendered less effective, false memories should

  3. Intelligent residential security alarm and remote control system based on single chip computer

    Microsoft Academic Search

    Liu Zhen-ya; Wang Zhen-dong; Chen Rong; Wu Xiao-feng

    2008-01-01

    This paper presents intelligent residential burglar alarm, emergency alarm, fire alarm, toxic gas leakage remote automatic sound alarm and remote control system, which is based on 89C51 single chip computer. The system can be automatic alarm, automatic calling the police hotline number. It can be used voice alarm and show alarm occurred address. It can set up and modify user

  4. NOTE / NOTE Alarm pheromone induces a transgenerational

    E-print Network

    Mondor, Ed

    2002). Winged morphs have a longer development time, lower fertility, and a shorter life span thanNOTE / NOTE Alarm pheromone induces a transgenerational wing polyphenism in the pea aphid a transgenerational wing- induction polyphenism in response to predators and parasitoids, but the stimuli inducing

  5. An Undergraduate Experiment in Alarm System Design.

    ERIC Educational Resources Information Center

    Martini, R. A.; And Others

    1988-01-01

    Describes an experiment involving data acquisition by a computer, digital signal transmission from the computer to a digital logic circuit and signal interpretation by this circuit. The system is being used at the Illinois Institute of Technology. Discusses the fundamental concepts involved. Demonstrates the alarm experiment as it is used in…

  6. Fire Alarm Systems for Health Care Facilities

    Microsoft Academic Search

    Hugh O. Nash

    1983-01-01

    Fire alarm systems for health care facilities must be designed for early detection, accurate location annunciation, fire department notification, and control of the high voltage alternating current (HVAC) system, and elevators. The designer must keep in mind that the system is designed to initiate a planned response by the hospital staff and the fire brigade without disturbing patients unnecessarily. The

  7. FIRE ALARM SYSTEM CONTROLLED BY USING COMPUTER

    Microsoft Academic Search

    P. Thiravasin; J. Sinthusonthichat

    This paper proposes the design and construction of fire alarm system which is controlled by 80C31 microcontroller. Computer is used to indicate situations of the system composed of 4 modes of working state, regular working mode, short circuit mode, open circuit of wiring signal mode, and fire mode. Graphic output states are displayed on personal computer, PC, by using software

  8. Automatic Fire Alarm System Based on MCU

    Microsoft Academic Search

    Zhang Kun; Hu Shunbin; Li Jinfang

    2010-01-01

    The paper introduced an automatic warehouse fire a1arm system based on MCU. The system was mainly made up of ATmega16, temperature sensors, smoke sensors, and EX-1 auto dialed alarm module. In the system, temperature signals were transformed to serial data, and smoke signals were transformed to voltage signals. All the data were processed by MCU. When the surveillance system checked

  9. Can false memories spontaneously recover?

    PubMed

    Seamon, John G; Berko, Jeffrey R; Sahlin, Brooke; Yu, Yi-Lo; Colker, Jennifer M; Gottfried, David H

    2006-05-01

    Can false memories that were suppressed at one time spontaneously recover at a later time? Fuzzy trace theory and activation-monitoring theory predict that false memories in the Deese, Roediger, and McDermott (DRM) procedure become substantially reduced as list learning progresses because participants employ a memory-editing process. It follows that if the editing process is rendered less effective, false memories should spontaneously recover. We found that after DRM lists were well learned and false recognition to critical words was substantially reduced by multiple study-test trials, those false memories spontaneously recovered when participants were either rushed or delayed on a retest. We attributed the reduction in false recognition over trials to a memory-editing process that suppresses false recognition as participants gradually learn which words were in the lists and which words, though similar, were not. Rushing or delaying the participants on a retest made it more difficult for them to edit their memory, and false memories spontaneously returned. PMID:16766445

  10. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460 Placement of machinery alarms. (a) Visible and audible alarms must...

  11. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460 Placement of machinery alarms. (a) Visible and audible alarms must...

  12. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460 Placement of machinery alarms. (a) Visible and audible alarms must...

  13. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460 Placement of machinery alarms. (a) Visible and audible alarms must...

  14. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460 Placement of machinery alarms. (a) Visible and audible alarms must...

  15. 46 CFR 111.33-7 - Alarms and shutdowns.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...ELECTRICAL ENGINEERING ELECTRIC SYSTEMS-GENERAL REQUIREMENTS Power Semiconductor Rectifier Systems § 111.33-7 Alarms and shutdowns. Each power semiconductor rectifier must have a high temperature alarm or shutdown, except as...

  16. 46 CFR 97.37-7 - General alarm bells.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... CARGO AND MISCELLANEOUS VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 97.37-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  17. 46 CFR 78.47-7 - General alarm bells.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...CONTINUED) PASSENGER VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 78.47-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  18. 46 CFR 78.47-7 - General alarm bells.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...CONTINUED) PASSENGER VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 78.47-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  19. 46 CFR 97.37-7 - General alarm bells.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... CARGO AND MISCELLANEOUS VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 97.37-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  20. 46 CFR 78.47-7 - General alarm bells.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...CONTINUED) PASSENGER VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 78.47-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  1. 46 CFR 97.37-7 - General alarm bells.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... CARGO AND MISCELLANEOUS VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 97.37-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  2. Criticality accident alarm system at the Fernald Environmental Management Project

    SciTech Connect

    Marble, R.C.; Brown, T.D.; Wooldridge, J.C.

    1994-12-31

    This paper describes the staus of the Fernald Environmental Management Project (FEMP) criticality alarm system. A new radiation detection alarm system was installed in 1990. The anunciation system, calibration and maintenance, and detector placement is described.

  3. 8. INTERIOR, FIRE ALARM CONTROL ROOM (NORTH OF MAIN GARAGE), ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. INTERIOR, FIRE ALARM CONTROL ROOM (NORTH OF MAIN GARAGE), FROM ENTRYWAY, LOOKING NORTH, SHOWING ADDITIONAL 'GAMEWELL' FIRE ALARM SYSTEMS. - Oakland Naval Supply Center, Firehouse, East of Fourth Street, between A & B Streets, Oakland, Alameda County, CA

  4. 46 CFR 78.47-7 - General alarm bells.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...CONTINUED) PASSENGER VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 78.47-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  5. 46 CFR 97.37-7 - General alarm bells.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... CARGO AND MISCELLANEOUS VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 97.37-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  6. 46 CFR 78.47-7 - General alarm bells.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...CONTINUED) PASSENGER VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 78.47-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  7. 46 CFR 97.37-7 - General alarm bells.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... CARGO AND MISCELLANEOUS VESSELS OPERATIONS Markings for Fire and Emergency Equipment, Etc. § 97.37-7 General alarm...lettering at least 1/2 inch high: “GENERAL ALARM—WHEN BELL RINGS GO TO YOUR STATION.” (b)...

  8. Alarm OnCall Form (Instructions) Office of Physical Security

    E-print Network

    Moore, Paul A.

    Alarm OnCall Form (Instructions) Office of Physical Security 101 Campus Operations Bowling; Alarm OnCall Form Office of Physical Security 101 Campus Operations Bowling Green State University/Director: ________________________________________________ Chair/Director email: ________________________________________________________ Fax

  9. Design of intelligent fire alarm system based on GSM network

    Microsoft Academic Search

    Chun-yuan Lian

    2011-01-01

    In order to solve the problem of complex cabling, misdeclaration and missing alarm of traditional fire alarm system, an intelligent fire alarm system based on GSM network is designed. MSP430F149 is adopted as main control chip, and the remote alarming and data exchanging are achieved by using GSM module TC35I. By adopting smoke detector and temperature detector and using a

  10. VESPA: False positive probabilities calculator

    NASA Astrophysics Data System (ADS)

    Morton, Timothy D.

    2015-03-01

    Validation of Exoplanet Signals using a Probabilistic Algorithm (VESPA) calculates false positive probabilities and statistically validates transiting exoplanets. Written in Python, it uses isochrones [ascl:1503.010] and the package simpledist.

  11. Tunneling decay of false kinks

    E-print Network

    Dupuis, Éric; MacKenzie, Richard; Marleau, Luc; Paranjape, M B; Ung, Y

    2015-01-01

    We consider the decay of "false kinks," that is, kinks formed in a scalar field theory with a pair of degenerate symmetry-breaking false vacua in 1+1 dimensions. The true vacuum is symmetric. A second scalar field and a peculiar potential are added in order for the kink to be classically stable. We find an expression for the decay rate of a false kink. As with any tunneling event, the rate is proportional to $\\exp(-S_E)$ where $S_E$ is the Euclidean action of the bounce describing the tunneling event. This factor varies wildly depending on the parameters of the model. Of interest is the fact that for certain parameters $S_E$ can get arbitrarily small, implying that the kink is only barely stable. Thus, while the false vacuum itself may be very long-lived, the presence of kinks can give rise to rapid vacuum decay.

  12. Journal of Chemical Ecology, Vol. 25, No. 12, 1999 CONDITIONED ALARM BEHAVIOR IN FATHEAD

    E-print Network

    Wisenden, Brian D.

    (Pimephales promelas) RESULTING FROM ASSOCIATION OF CHEMICAL ALARM PHEROMONE WITH A NONBIOLOGICAL VISUAL--Fathead minnows (Pimephales promelas) adopt antipredator (alarm) behavior when they detect alarm pheromone, Pimephales promelas, alarm pheromone, Schreckstoff, learned recognition of predation risk, red light. #12

  13. Alarm annunciation in a graphical environment

    SciTech Connect

    Adams, D.G.

    1994-08-01

    Well-designed graphical user interfaces, such as Microsoft Windows{trademark} or UNIX{trademark} -- based X-Windows, provide a capability for enhanced display of security alarm information. Conversely, a poorly designed interface can quickly overwhelm an operator. This paper describes types of graphical information that can be displayed and offers guidance on how to best display that information. Limits are proposed for the complexity of the user interface, and guidelines are suggested for the display of maps and sensors.

  14. IR gas cloud imaging in oil and gas applications: immunity to false stimuli

    NASA Astrophysics Data System (ADS)

    Naranjo, Edward; Baliga, Shakar; Park, John; Bernascolle, Philippe

    2011-05-01

    Fixed gas detection equipment for the petroleum industries is no ordinary equipment. It is designed for continued unattended surveillance in harsh environments. The equipment must be reliable and require limited field maintenance. An additional requirement is a high resistance to false alarms and interferences, which can potentially reduce the detector's efficacy and the level of protection provided. In recent years, several manufactures of IR imaging devices have launched commercial models that are applicable to a wide range of chemical species and suitable for industrial use. These cameras are rugged and sufficiently sensitive to detect low concentrations of combustible and toxic gases. Nonetheless, as users become acquainted with these imaging systems, questions of resilience to solar and flame radiation and other IR sources, interferences by fog or steam, have begun to emerge. These questions, in fact, reflect similar concerns as those raised with open path IR gas detectors when they first appeared in the market over 20 years ago. This paper examines an IR gas imager's performance when exposed to several false alarm sources. Gas detection sensitivity in the presence of false stimuli and response and recovery times under an uncontrolled outdoor environment were measured. The results show the specific model tested is reasonably immune to false alarms, while response times were unaffected by the presence of these sources.

  15. 15 CFR 923.25 - Shoreline erosion/mitigation planning.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...2014-01-01 2014-01-01 false Shoreline erosion/mitigation planning. 923.25 Section...Management Areas § 923.25 Shoreline erosion/mitigation planning. (a) The...control, or lessen the impact of, shoreline erosion, including potential impacts of...

  16. 15 CFR 923.25 - Shoreline erosion/mitigation planning.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...2013-01-01 2013-01-01 false Shoreline erosion/mitigation planning. 923.25 Section...Management Areas § 923.25 Shoreline erosion/mitigation planning. (a) The...control, or lessen the impact of, shoreline erosion, including potential impacts of...

  17. 15 CFR 923.25 - Shoreline erosion/mitigation planning.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...2012-01-01 2012-01-01 false Shoreline erosion/mitigation planning. 923.25 Section...Management Areas § 923.25 Shoreline erosion/mitigation planning. (a) The...control, or lessen the impact of, shoreline erosion, including potential impacts of...

  18. 15 CFR 923.25 - Shoreline erosion/mitigation planning.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...2011-01-01 2011-01-01 false Shoreline erosion/mitigation planning. 923.25 Section...Management Areas § 923.25 Shoreline erosion/mitigation planning. (a) The...control, or lessen the impact of, shoreline erosion, including potential impacts of...

  19. “When true is false, and false is true” [Column

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Many insects and other organisms are called “false” as a common name or the Latin equivalent “pseudo-“ in their scientific names. The column explores the details of and the reasons why so many insects are given such names. Reasons include the vast biodiversity of certain groups, the historical typ...

  20. Do smoke alarms still function a year after installation? A follow-up of the get-alarmed campaign.

    PubMed

    Thompson, Corleen J; Jones, Alma R; Davis, Mary Kidd; Caplan, Lee S

    2004-04-01

    The Get-Alarmed Campaign Follow-up Study was the second phase of an initiative to assure that homes of families at high risk of fire-related injury and death had functioning smoke alarms. Smoke alarms and/or batteries were installed in over 94 percent of 454 participating households in Schley and Henry Counties, Georgia, in 2000. Before the study began, 60.6 percent of these homes had smoke alarms, but only 36.6 percent had functioning smoke alarms. The follow-up study was designed to determine the experiences of participants with smoke alarms and whether participating households had functioning smoke alarms a year after baseline. Participants were phoned or visited and asked about their experiences with smoke alarms since the baseline study. During the interview, they were asked to test a smoke alarm, the results of which could frequently be heard. Respondents included 237 from Schley County and 113 from Henry County, for an overall 77.1 percent response rate. While 80.3 percent of respondents had a smoke alarm that was heard by the interviewer when it was tested, 6.6 percent reported that their smoke alarm had been disabled or had a dead battery. Over 75 percent of respondents had smoke alarm sound offs in the prior year, predominately due to cooking smoke, but only about 5 percent reported removing the battery or otherwise disabling it to prevent sound offs. However, the measures taken may render a household unprotected at a critical time. Efforts to increase protection with smoke alarms should be augmented with programs to insure adequate and timely testing and maintenance of existing smoke alarms. PMID:15065735

  1. Early warning, warning or alarm systems for natural hazards? A generic classification.

    NASA Astrophysics Data System (ADS)

    Sättele, Martina; Bründl, Michael; Straub, Daniel

    2013-04-01

    Early warning, warning and alarm systems have gained popularity in recent years as cost-efficient measures for dangerous natural hazard processes such as floods, storms, rock and snow avalanches, debris flows, rock and ice falls, landslides, flash floods, glacier lake outburst floods, forest fires and even earthquakes. These systems can generate information before an event causes loss of property and life. In this way, they mainly mitigate the overall risk by reducing the presence probability of endangered objects. These systems are typically prototypes tailored to specific project needs. Despite their importance there is no recognised system classification. This contribution classifies warning and alarm systems into three classes: i) threshold systems, ii) expert systems and iii) model-based expert systems. The result is a generic classification, which takes the characteristics of the natural hazard process itself and the related monitoring possibilities into account. The choice of the monitoring parameters directly determines the system's lead time. The classification of 52 active systems moreover revealed typical system characteristics for each system class. i) Threshold systems monitor dynamic process parameters of ongoing events (e.g. water level of a debris flow) and incorporate minor lead times. They have a local geographical coverage and a predefined threshold determines if an alarm is automatically activated to warn endangered objects, authorities and system operators. ii) Expert systems monitor direct changes in the variable disposition (e.g crack opening before a rock avalanche) or trigger events (e.g. heavy rain) at a local scale before the main event starts and thus offer extended lead times. The final alarm decision incorporates human, model and organisational related factors. iii) Model-based expert systems monitor indirect changes in the variable disposition (e.g. snow temperature, height or solar radiation that influence the occurrence probability of snow avalanches) or trigger events (e.g. heavy snow fall) to predict spontaneous hazard events in advance. They encompass regional or national measuring networks and satisfy additional demands such as the standardisation of the measuring stations. The developed classification and the characteristics, which were revealed for each class, yield a valuable input to quantifying the reliability of warning and alarm systems. Importantly, this will facilitate to compare them with well-established standard mitigation measures such as dams, nets and galleries within an integrated risk management approach.

  2. Indoor and Outdoor Social Alarms: Understanding Users' Perspectives

    PubMed Central

    2014-01-01

    The elderly population is increasing and there is a need to provide care and safety at a high level with limited resources. New social alarm solutions may contribute to safety and independence for many elderly. However, it is important to understand the needs within the user group. This work studied social alarms in a broad sense and from several user perspectives. In the first study, social alarm use and its aspects were investigated. To understand where there may be problems and weaknesses, users, caregivers, managers of municipalities, and personnel at alarm centers were interviewed. The interviews helped identify a number of problems. For municipalities, the processes of procuring new alarms and managing their organization were found to be complex. The effect of this was that the same social alarm systems had been ordered over and over again without taking into account new user needs or new technical solutions. For alarm users, one large problem was that the alarms had very limited reach and were designed for indoor use only. This has resulted in users hesitating to leave their homes, which in turn has negative effects due to lack of physical activity and fewer social contacts. One important result from the first study was the need for a social alarm solution that worked outdoors. In a second study, needs regarding outdoor social alarms were investigated. The results from this study showed that wearable outdoor alarms must be easy to use, provide communication, and be well designed. Finally, these alarms must work both indoors and outdoors, and the user should not have to worry about where he/she is or who is acting on an alarm. PMID:25099060

  3. 75 FR 34687 - Notice of Decision to Issue Permits for the Importation of Fresh False Coriander From Panama Into...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-18

    ...designated phytosanitary measures will be sufficient to mitigate the risks of introducing or disseminating plant pests or noxious weeds via the importation of fresh false coriander from Panama. EFFECTIVE DATE: June 18, 2010. FOR FURTHER INFORMATION...

  4. 75 FR 6345 - Notice of Availability of a Pest Risk Analysis for the Importation of Fresh False Coriander From...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-09

    ...designated phytosanitary measures will be sufficient to mitigate the risks of introducing or disseminating plant pests or noxious weeds via the importation of fresh false coriander from Panama. We are making the pest risk analysis available to the public...

  5. Weather Alarm Clock 2.1

    NSDL National Science Digital Library

    2007-01-01

    This handy application is fairly self-explanatory: It displays both the weather and tells the time. Now, it does so in a visually pleasing manner, and for that alone it should be praised. It comes with a few customized skins, and users can create alarms which can be accompanied by pop-up messages. Finally, for those who are quite particular about the exact time, the clock feature can be synchronized with various omnipotent atomic clock servers. This version is compatible with computers running Windows 2000, XP, and 2003.

  6. Sleep loss produces false memories.

    PubMed

    Diekelmann, Susanne; Landolt, Hans-Peter; Lahl, Olaf; Born, Jan; Wagner, Ullrich

    2008-01-01

    People sometimes claim with high confidence to remember events that in fact never happened, typically due to strong semantic associations with actually encoded events. Sleep is known to provide optimal neurobiological conditions for consolidation of memories for long-term storage, whereas sleep deprivation acutely impairs retrieval of stored memories. Here, focusing on the role of sleep-related memory processes, we tested whether false memories can be created (a) as enduring memory representations due to a consolidation-associated reorganization of new memory representations during post-learning sleep and/or (b) as an acute retrieval-related phenomenon induced by sleep deprivation at memory testing. According to the Deese, Roediger, McDermott (DRM) false memory paradigm, subjects learned lists of semantically associated words (e.g., "night", "dark", "coal",...), lacking the strongest common associate or theme word (here: "black"). Subjects either slept or stayed awake immediately after learning, and they were either sleep deprived or not at recognition testing 9, 33, or 44 hours after learning. Sleep deprivation at retrieval, but not sleep following learning, critically enhanced false memories of theme words. This effect was abolished by caffeine administration prior to retrieval, indicating that adenosinergic mechanisms can contribute to the generation of false memories associated with sleep loss. PMID:18946511

  7. Alarm system for a nuclear control complex

    DOEpatents

    Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

    1994-01-01

    An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

  8. Surprising causes of C5-carnitine false positive results in newborn screening.

    PubMed

    Boemer, François; Schoos, Roland; de Halleux, Virginie; Kalenga, Masendu; Debray, François-Guillaume

    2014-01-01

    During an 18-month period, we noticed an alarming increase of newborn screening false positivity rate in identifying isovaleric acidemia. In 50 of 50 newborns presenting elevated C5-carnitine, we confirmed the presence of pivaloylcarnitine. Exogenous pivalate administration had been previously identified as the causal agent of this concern. No pivalic-ester prodrug is commercially available in Belgium, but pivalic derivates are also used in the cosmetic industry as emollient under the term "neopentanoate". We have identified neopentanoate-esters in a nipple-fissure unguent that was provided to young mothers. Ceasing distribution of this product hugely reduced the C5-carnitine false positivity rate. PMID:24291264

  9. Structural Damage Alarm Utilizing Modified Back-Propagation Neural Networks

    NASA Astrophysics Data System (ADS)

    Dong, Xiaoma

    Damage alarm is an important step among structure damage identification. Its objective is to evaluate the structure health. The existing damage alarm methods are mostly based on Back-Propagation Neural Networks without thinking over testing noise. Therefore, in order to avoid the disadvantages of conventional Back-Propagation Neural Networks, a modified Back-Propagation Neural Networks was proposed for structure damage alarm system in this paper. The experiment results of steel truss girder bridge show that the improved method is better than BPNN for structural damage alarm.

  10. Functional Alarms for Systems of Interoperable Medical Devices

    PubMed Central

    Venkatasubramanian, Krishna K.; Vasserman, Eugene Y.; Sokolsky, Oleg; Lee, Insup

    2014-01-01

    Alarms are essential for medical systems in order to ensure patient safety during deteriorating clinical situations and inevitable device malfunction. As medical devices are connected together to become interoperable, alarms become crucial part in making them high-assurance, in nature. Traditional alarm systems for interoperable medical devices have been patientcentric. In this paper, we introduce the need for an alarm system that focuses on the correct functionality of the interoperability architecture itself, along with several considerations and design challenges in enabling them. PMID:25404867

  11. Criticality Accident Alarm System Modeling with SCALE

    SciTech Connect

    Peplow, Douglas E. [ORNL] [ORNL; Petrie Jr, Lester M [ORNL] [ORNL

    2009-01-01

    Criticality accident alarm systems (CAAS) can be difficult to analyze since they consist of both criticality calculations and deep-penetration radiation transport calculations. Radiation transport codes are typically optimized for one of those two aspects but not both. A three-dimensional CAAS modeling capability within SCALE 6 has been created by linking the KENO-VI criticality code to the MAVRIC shielding sequence. KENO-VI has been optimized for criticality calculations and used for over 20 years. MAVRIC is a new sequence in SCALE 6 designed for radiation transport in deep-penetration problems. MAVRIC contains features such as automated variance reduction and mesh tally capabilities, which are quite useful in CAAS modeling.

  12. Research and application of highway tunnel fire alarm system based on fiber Bragg grating sensor technology

    Microsoft Academic Search

    Ciming Zhou; Liuyong Chen; Desheng Jiang; Jun He; Shaoyun Zhang

    2007-01-01

    A new fire alarm system based on FBG sensor has been investigated to determine its potential in fire alarm applications for highway tunnel. The system has been experimentally tested and some of its application are reported. The results show that the new fire alarm system is capable of fixed temperature alarm and rate-of-rise alarm promptly; the fire place can easily

  13. False advertising in the greenhouse?

    NASA Astrophysics Data System (ADS)

    Banse, K.

    1991-12-01

    Most scientists are convinced of the importance of their own research subjects. Broecker [1991] has deplored the temptation, if not the tendency, to go overboard and exaggerate this importance once funding enters the mind. In particular, he alleges inflated or even false claims by biological (and other) oceanographers regarding the relevance of their research to the "greenhouse effect," caused by the anthropogenic enhancement of the atmospheric CO2 content. He writes [Broecker, 1991, p. 191]: "In my estimation, on any list of subjects requiring intense study with regard to the prediction of the consequences of CO2 buildup in the atmosphere, I would place marine biological cycles near the bottom."

  14. D0 Cryo System ODH and Cryo Alarm System Response

    SciTech Connect

    Urbin, J.; Dixon, K.; /Fermilab

    1990-04-05

    The D0 Cryo System is monitored by a computerized process control system and an ODH safety system. During steady state operations the cryo system will be unmanned and system experts will depend on communication systems for notification of system problems. The FIRUS system meets the minimum communication requirement and is supplemented with an autodialer which attempts to contact cryo operators by pager or phone. The RD/Safety Department requires the ODH monitor system to be connected to the labwide FIRUS system. which enables the Communications Center to receive alarms and notify the proper experts of the condition. The ODH system will have two alarm points. One for an ODH alarm and one for a system trouble alarm. The autodialer system has replaced a former cryo operations summation alarm point in the FIRUS system. This has freed space on the FIRUS system and has allowed the cryo experts more flexibility in setting up their own communication link. The FIRUS and the autodialer systems receive alarms and access lists of experts to call for notification of problems. Attempts to contact these experts will continue until the alarm or alarms is acknowledged.

  15. Successful use of the nocturnal urine alarm for diurnal enuresis.

    PubMed Central

    Friman, P C; Vollmer, D

    1995-01-01

    We report the effects of using a urine alarm, typically employed for nocturnal enuresis, to treat chronic diurnal enuresis in a 15-year-old female resident at Boys' Town. The results of an ABAB reversal design indicate that the alarm eliminated wetting in both treatment phases and that continence was maintained at 3- and 6-month follow-up. PMID:7706154

  16. Reliability and the adaptive utility of discrimination among alarm callers

    Microsoft Academic Search

    Daniel T. Blumstein; Laure Verneyre; Janice C. Daniel

    2004-01-01

    Unlike individually distinctive contact calls, or calls that aid in the recognition of young by their parents, the function or functions of individually distinctive alarm calls is less obvious. We conducted three experiments to study the importance of caller reliability in explaining individual-discriminative abilities in the alarm calls of yellow-bellied marmots (Marmota flaviventris). In our first two experiments, we found

  17. Points & Deviations A pattern language for fire alarm systems

    E-print Network

    Schmidt, Douglas C.

    Page 1 Points & Deviations ­ A pattern language for fire alarm systems Peter Molin and Lennart the architecture embedded in the framework. The result of this effort was a small pattern language which. Keywords : object­oriented framework, design pattern, pattern language, fire alarm system. 1 Introduction

  18. Los Alamos Scientific Laboratory long-range alarm system

    SciTech Connect

    DesJardin, R.; Machanik, J.

    1980-01-01

    The Los Alamos Scientific Laboratory (LASL) Long-Range Alarm System is described. The last few years have brought significant changes in the Department of Energy regulations for protection of classified documents and special nuclear material. These changes in regulations have forced a complete redesign of the LASL security alarm system. LASL covers many square miles of varying terrain and consists of separate technical areas connected by public roads and communications. A design study over a period of 2 years produced functional specifications for a distributed intelligence, expandable alarm system that will handle 30,000 alarm points from hundreds of data concentrators spread over a 250-km/sup 2/ area. Emphasis in the design was on nonstop operation, data security, data communication, and upward expandability to incorporate fire alarms and the computer-aided dispatching of security and fire vehicles. All aspects of the alarm system were to be fault tolerant from the central computer system down to but not including the individual data concentrators. Redundant communications lines travel over public domain from the alarmed area to the central alarm station.

  19. Los Alamos Scientific Laboratory long-range alarm system

    Microsoft Academic Search

    R. DesJardin; J. Machanik

    1980-01-01

    The Los Alamos Scientific Laboratory (LASL) Long-Range Alarm System is described. The last few years have brought significant changes in the Department of Energy regulations for protection of classified documents and special nuclear material. These changes in regulations have forced a complete redesign of the LASL security alarm system. LASL covers many square miles of varying terrain and consists of

  20. Research on the fire alarming system of fiber grating

    Microsoft Academic Search

    Yaobin Qi

    2007-01-01

    The application of fiber grating sensing technology in fire alarming based on temperature detection has the advantages of high accuracy, high reliability and strong immunity from electronic and magnetic fields. It is especially advantageous to use this system in the petroleum and chemistry industry because it can provide an extraordinary safe means for the fire alarm. But due to the

  1. Fire alarm system based-on video processing

    Microsoft Academic Search

    W. Tjokorda Agung Budi; Iping Supriana Suwardi

    2011-01-01

    Fire is one of the disasters that often occur in everyday life and causing losses both in terms of material and non-material. There has been much research done to build a field alarm system. One way to build a fire alarm system is base on fire detection on video data; this is done with digital image processing techniques and machine-

  2. University of Houston Fire Alarm Installation / Revision Permit

    E-print Network

    Azevedo, Ricardo

    to be done: Will Fire Alarm System be shut down? Yes No If yes, what is the name of the Fire Watch? FireUniversity of Houston Fire Alarm Installation / Revision Permit All FMO Permits Must Be Submitted end? Weekend Work: Yes No If yes, what days? Have Certified Plans been submitted to UH Fire Marshal

  3. Failure Detection of Fire Alarm Sensors Based on Information Fusion

    Microsoft Academic Search

    Jinshui Qiu; Boyun Liu

    2009-01-01

    As for the safety inspection and monitoring, it is very important to find the fault of the transducer itself. In view of the redundant transducer group are often used in the fire alarm system, this paper brings forward a fault diagnostic structure with the fire alarm sensors fault diagnosis module. This module introduces the information fusion basing on RBF neural

  4. Evaluating Injury Prevention Programs: The Oklahoma City Smoke Alarm Project.

    ERIC Educational Resources Information Center

    Mallonee, Sue

    2000-01-01

    Illustrates how evaluating the Oklahoma City Smoke Alarm Project increased its success in reducing residential fire-related injuries and deaths. The program distributed and tested smoke alarms in residential dwellings and offered educational materials on fire prevention and safety. Evaluation provided sound data on program processes and outcomes,…

  5. 1. Photographic copy of fire alarm plan for Control and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photographic copy of fire alarm plan for Control and Recording Center Building 4221/E-22, showing layout of rooms. California Institute of Technology, Jet Propulsion Laboratory, Plant Engineering 'Edwards Test Station, Fire Alarm Plan, Bldg. E-22,' drawing no. EFA/11-1, December 15, 1961. - Jet Propulsion Laboratory Edwards Facility, Control & Recording Center, Edwards Air Force Base, Boron, Kern County, CA

  6. 'Payson' Panorama in False Color

    NASA Technical Reports Server (NTRS)

    2006-01-01

    The panoramic camera aboard NASA's Mars Exploration Rover Opportunity acquired this panorama of the 'Payson' outcrop on the western edge of 'Erebus' Crater during Opportunity's sol 744 (Feb. 26, 2006). From this vicinity at the northern end of the outcrop, layered rocks are observed in the crater wall, which is about 1 meter (3.3 feet) thick. The view also shows rocks disrupted by the crater-forming impact event and subjected to erosion over time.

    To the left of the outcrop, a flat, thin layer of spherule-rich soils overlies more outcrop materials. The rover is currently traveling down this 'road' and observing the approximately 25-meter (82-foot) length of the outcrop prior to departing Erebus crater.

    The panorama camera took 28 separate exposures of this scene, using four different filters. The resulting panorama covers about 90 degrees of terrain around the rover. This false-color rendering was made using the camera's 753-nanometer, 535-nanometer and 423-nanometer filters. Using false color enhances the subtle color differences between layers of rocks and soils in the scene so that scientists can better analyze them. Image-to-image seams have been eliminated from the sky portion of the mosaic to better simulate the vista a person standing on Mars would see.

  7. 46 CFR 154.1330 - Liquid level alarm system: Independent tank type C.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Liquid level alarm system: Independent tank...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1330 Liquid level alarm system: Independent tank...liquid level alarm system under §...

  8. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Liquid level alarm system: All cargo tanks...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks...liquid level alarm system that:...

  9. 46 CFR 154.1330 - Liquid level alarm system: Independent tank type C.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Liquid level alarm system: Independent tank...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1330 Liquid level alarm system: Independent tank...liquid level alarm system under §...

  10. 46 CFR 154.1330 - Liquid level alarm system: Independent tank type C.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Liquid level alarm system: Independent tank...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1330 Liquid level alarm system: Independent tank...liquid level alarm system under §...

  11. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Liquid level alarm system: All cargo tanks...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks...liquid level alarm system that:...

  12. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Liquid level alarm system: All cargo tanks...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks...liquid level alarm system that:...

  13. 46 CFR 154.1330 - Liquid level alarm system: Independent tank type C.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Liquid level alarm system: Independent tank...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1330 Liquid level alarm system: Independent tank...liquid level alarm system under §...

  14. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Liquid level alarm system: All cargo tanks...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks...liquid level alarm system that:...

  15. 46 CFR 154.1330 - Liquid level alarm system: Independent tank type C.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Liquid level alarm system: Independent tank...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1330 Liquid level alarm system: Independent tank...liquid level alarm system under §...

  16. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Liquid level alarm system: All cargo tanks...DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED...and Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks...liquid level alarm system that:...

  17. 47 CFR 80.221 - Special requirements for automatically generating the radiotelephone alarm signal.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...generating the radiotelephone alarm signal. 80.221 Section 80.221 ...generating the radiotelephone alarm signal. (a) Each device for automatically generating the radiotelephone alarm signal must be capable of being...

  18. 47 CFR 80.221 - Special requirements for automatically generating the radiotelephone alarm signal.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...generating the radiotelephone alarm signal. 80.221 Section 80.221 ...generating the radiotelephone alarm signal. (a) Each device for automatically generating the radiotelephone alarm signal must be capable of being...

  19. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...the requirements for a fire detection and alarm system? 149.414 Section...the requirements for a fire detection and alarm system? (a) All accommodation...must have an automatic fire detection and alarm system that: (1)...

  20. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...the requirements for a fire detection and alarm system? 149.414 Section...the requirements for a fire detection and alarm system? (a) All accommodation...must have an automatic fire detection and alarm system that: (1)...

  1. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...the requirements for a fire detection and alarm system? 149.414 Section...the requirements for a fire detection and alarm system? (a) All accommodation...must have an automatic fire detection and alarm system that: (1)...

  2. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...the requirements for a fire detection and alarm system? 149.414 Section...the requirements for a fire detection and alarm system? (a) All accommodation...must have an automatic fire detection and alarm system that: (1)...

  3. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...the requirements for a fire detection and alarm system? 149.414 Section...the requirements for a fire detection and alarm system? (a) All accommodation...must have an automatic fire detection and alarm system that: (1)...

  4. 46 CFR 76.35-10 - Location and spacing of manual alarm boxes.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Location and spacing of manual alarm boxes. 76.35-10 Section...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Manual Alarm System, Details § 76.35-10 Location and spacing of manual alarm boxes. (a) There...

  5. 46 CFR 169.732 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...dioxide and clean agent alarms. 169.732 ...Miscellaneous Systems, and Equipment...and clean agent alarms. (a) Each...dioxide or clean agent fire extinguishing alarm must be conspicuously...by carbon dioxide systems, or any...

  6. 46 CFR 76.35-10 - Location and spacing of manual alarm boxes.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Location and spacing of manual alarm boxes. 76.35-10 Section...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Manual Alarm System, Details § 76.35-10 Location and spacing of manual alarm boxes. (a) There...

  7. 46 CFR 76.35-10 - Location and spacing of manual alarm boxes.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Location and spacing of manual alarm boxes. 76.35-10 Section...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Manual Alarm System, Details § 76.35-10 Location and spacing of manual alarm boxes. (a) There...

  8. 46 CFR 76.35-10 - Location and spacing of manual alarm boxes.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Location and spacing of manual alarm boxes. 76.35-10 Section...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Manual Alarm System, Details § 76.35-10 Location and spacing of manual alarm boxes. (a) There...

  9. 46 CFR 169.732 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...dioxide and clean agent alarms. 169.732 ...Miscellaneous Systems, and Equipment...and clean agent alarms. (a) Each...dioxide or clean agent fire extinguishing alarm must be conspicuously...by carbon dioxide systems, or any...

  10. The application of multi-sensor weighted measurement fusion filter in fire alarm system

    Microsoft Academic Search

    Xiujinag Lv; Yunfeng Shi; Lina Han; Shangfeng Huang

    2010-01-01

    This paper put forward the theory of weighted measurement fusion filter is used in fire alarm, fuse the alarm of multiple sensors filter signal, get an accurate early warning signals in fire alarm, and improve police efficiency.

  11. 46 CFR 76.35-10 - Location and spacing of manual alarm boxes.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Location and spacing of manual alarm boxes. 76.35-10 Section...CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Manual Alarm System, Details § 76.35-10 Location and spacing of manual alarm boxes. (a) There...

  12. 46 CFR 169.732 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...dioxide and clean agent alarms. 169.732 ...Miscellaneous Systems, and Equipment...and clean agent alarms. (a) Each...dioxide or clean agent fire extinguishing alarm must be conspicuously...by carbon dioxide systems, or any...

  13. Prairie dog alarm calls encode labels about predator colors.

    PubMed

    Slobodchikoff, C N; Paseka, Andrea; Verdolin, Jennifer L

    2009-05-01

    Some animals have the cognitive capacity to differentiate between different species of predators and generate different alarm calls in response. However, the presence of any addition information that might be encoded into alarm calls has been largely unexplored. In the present study, three similar-sized human females walked through a Gunnison's prairie dog (Cynomys gunnisoni) colony wearing each of three different-colored shirts: blue, green, and yellow. We recorded the alarm calls and used discriminant function analysis to assess whether the calls for the different-colored shirts were significantly different. The results showed that the alarm calls for the blue and the yellow shirts were significantly different, but the green shirt calls were not significantly different from the calls for the yellow shirt. The colors that were detected, with corresponding encoding into alarm calls, reflect the visual perceptual abilities of the prairie dogs. This study suggests that prairie dogs are able to incorporate labels about the individual characteristics of predators into their alarm calls, and that the complexity of information contained in animal alarm calls may be greater than has been previously believed. PMID:19116730

  14. Performance analysis of fiber fault PON monitoring using optical coding: SNR, SNIR, and false-alarm probability

    Microsoft Academic Search

    Mohammad M. Rad; Habib A. Fathallah; Leslie A. Rusch

    2010-01-01

    We evaluate the theoretical performance of recently proposed optical coding (OC) technology for fiber fault monitoring of a PON through the signal-to-noise ratio (SNR), the signal-to-noise-plus-interference ratio (SNIR), and the falsealarm probability. First, we develop a mathematical model and expressions for the detected monitoring signals considering a square law detector and using realistic parameters. Second, we address the effect of

  15. A neural network-based passive sonar detection and classification design with a low false alarm rate

    Microsoft Academic Search

    F. L. Casselman; D. F. Freeman; D. A. Kerrigan; N. H. Millstrom

    1991-01-01

    The Standard Transient Data Set (STDS) Phase 1 data were used to design detection and classification algorithms. Two separate processing chains were constructed, using neural networks for the short-duration transients and conventional processing for tonals. The design activity emphasized the judicious matching of acoustic digital signal processing (DSP) and neural networks, plus the construction of optimized training sets. The resulting

  16. A false alarm based on electrical activity recorded at a VAN-Station in northern Greece in December 1990

    NASA Astrophysics Data System (ADS)

    Drakopoulos, John; Stavrakakis, George N.

    A VAN-prediction was announced on January 6, 1991, through the French newspaper “Le Monde” and on January 8-10, 1991, through Greek newspapers and TV stations. We evaluate this prediction on the basis of a letter which was sent by Prof. Varotsos (without date) to the Greek Minister of Public Works, and by considering previous VAN-publications as well as recent seismological data for the candidate regions. We conclude that what was observed at ASS station (northern Greece) on December 31, 1990, was not SES-activity but another disturbance or noise.

  17. Computational Human Performance Modeling For Alarm System Design

    SciTech Connect

    Jacques Hugo

    2012-07-01

    The introduction of new technologies like adaptive automation systems and advanced alarms processing and presentation techniques in nuclear power plants is already having an impact on the safety and effectiveness of plant operations and also the role of the control room operator. This impact is expected to escalate dramatically as more and more nuclear power utilities embark on upgrade projects in order to extend the lifetime of their plants. One of the most visible impacts in control rooms will be the need to replace aging alarm systems. Because most of these alarm systems use obsolete technologies, the methods, techniques and tools that were used to design the previous generation of alarm system designs are no longer effective and need to be updated. The same applies to the need to analyze and redefine operators’ alarm handling tasks. In the past, methods for analyzing human tasks and workload have relied on crude, paper-based methods that often lacked traceability. New approaches are needed to allow analysts to model and represent the new concepts of alarm operation and human-system interaction. State-of-the-art task simulation tools are now available that offer a cost-effective and efficient method for examining the effect of operator performance in different conditions and operational scenarios. A discrete event simulation system was used by human factors researchers at the Idaho National Laboratory to develop a generic alarm handling model to examine the effect of operator performance with simulated modern alarm system. It allowed analysts to evaluate alarm generation patterns as well as critical task times and human workload predicted by the system.

  18. Gating Functions for Multipath Mitigation in GNSS BOC Signals

    Microsoft Academic Search

    FERNANDO D. NUNES; FERNANDO M. G. SOUSA; Jose Leitao

    2007-01-01

    A new multipath mitigation technique is proposed for binary offset carrier (BOC) signals in global navigation satellite systems (GNSS) using the concept of gating function originally conceived for the GPS coarse-acquisition (C\\/A) code. Specially-tailored pulses are utilized to diminish the number of false-lock points of the code discriminator response and to improve the multipath mitigation capability. The code loop includes

  19. RFI mitigation workshop, Penticton, July 2004 RFI mitigation

    E-print Network

    Ellingson, Steven W.

    RFI mitigation workshop, Penticton, July 2004 RFI mitigation with the phase-only adaptive beamforming P. A. Fridman ASTRON #12;RFI mitigation workshop, Penticton, July 2004 Adaptive phase control #12;RFI mitigation workshop, Penticton, July 2004 #12;RFI mitigation workshop, Penticton, July 2004 #12

  20. 15 CFR 80.6 - False statements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...COMMERCE FURNISHING PERSONAL CENSUS DATA FROM CENSUS OF POPULATION SCHEDULES § 80.6 False statements. Any false... (Approved by the Office of Management and Budget under control number 0607-0117) [40 FR 53232, Nov. 17,...

  1. 15 CFR 80.6 - False statements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...COMMERCE FURNISHING PERSONAL CENSUS DATA FROM CENSUS OF POPULATION SCHEDULES § 80.6 False statements. Any false... (Approved by the Office of Management and Budget under control number 0607-0117) [40 FR 53232, Nov. 17,...

  2. 15 CFR 80.6 - False statements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...COMMERCE FURNISHING PERSONAL CENSUS DATA FROM CENSUS OF POPULATION SCHEDULES § 80.6 False statements. Any false... (Approved by the Office of Management and Budget under control number 0607-0117) [40 FR 53232, Nov. 17,...

  3. 15 CFR 80.6 - False statements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...COMMERCE FURNISHING PERSONAL CENSUS DATA FROM CENSUS OF POPULATION SCHEDULES § 80.6 False statements. Any false... (Approved by the Office of Management and Budget under control number 0607-0117) [40 FR 53232, Nov. 17,...

  4. 15 CFR 80.6 - False statements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...COMMERCE FURNISHING PERSONAL CENSUS DATA FROM CENSUS OF POPULATION SCHEDULES § 80.6 False statements. Any false... (Approved by the Office of Management and Budget under control number 0607-0117) [40 FR 53232, Nov. 17,...

  5. 46 CFR 28.250 - High water alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    Requirements for Documented Vessels That Operate Beyond the Boundary Lines or With More Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.250 High water alarms. On a vessel 36 feet...

  6. 46 CFR 28.250 - High water alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    Requirements for Documented Vessels That Operate Beyond the Boundary Lines or With More Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.250 High water alarms. On a vessel 36 feet...

  7. 46 CFR 111.33-7 - Alarms and shutdowns.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...111.33-7 Section 111.33-7 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING ELECTRIC SYSTEMS-GENERAL REQUIREMENTS Power Semiconductor Rectifier Systems § 111.33-7 Alarms...

  8. A distributed approach to alarm management in chronic kidney disease.

    PubMed

    Estudillo-Valderrama, Miguel A; Talaminos-Barroso, Alejandro; Roa, Laura M; Naranjo-Hernández, David; Reina-Tosina, Javier; Aresté-Fosalba, Nuria; Milán-Martín, José A

    2014-11-01

    This paper presents the feasibility study of using a distributed approach for the management of alarms from chronic kidney disease patients. In a first place, the key issues regarding alarm definition, classification, and prioritization according to available normalization efforts are analyzed for the main scenarios addressed in hemodialysis. Then, the middleware proposed for alarm management is described, which follows the publish/subscribe pattern, and supports the Object Management Group data distribution service (DDS) standard. This standard facilitates the real-time monitoring of the exchanged information, as well as the scalability and interoperability of the solution developed regarding the different stakeholders and resources involved. Finally, the results section shows, through the proof of concept studied, the viability of DDS for the activation of emergency protocols in terms of alarm prioritization and personalization, as well as some remarks about security, privacy, and real-time communication performance. PMID:25014977

  9. Measurement of the Portsmouth Gaseous Diffusion Plant criticality accident alarm

    SciTech Connect

    Tayloe, R.W. Jr. (Battelle Columbus (USA)); McGinnis, B. (Martin Marietta Energy Systems, Inc., Piketon, OH (USA))

    1990-08-31

    Measurements of the Portsmouth Gaseous Diffusion Plant's nuclear criticality accident radiation alarm signal response time, sound wave frequency, and sound volume levels were made to demonstrate compliance with ANSI/ANS-8.3-1986. A steady-state alarm signal is produced within one-half second of obtaining a two-out-of-three detector trip. The fundamental alarm sound wave frequency is 440 hertz. The sound volume levels are greater than 10 decibels above background and ranged from 100 to 125 A-weighted decibels. The requirements of the standard were met; however the recommended maximum sound volume level of 115 dBA was exceeded. Emergency procedures require immediate evacuation upon initiation of a facility's radiation alarm. Comparison with standards for allowable time of exposure at different noise levels indicate that the elevated noise level at this location does not represent an occupational injury hazard. 8 refs., 5 figs.

  10. 5. DETAIL VIEW OF OLD, PUNCHTYPE MASTER FIRE ALARM SYSTEM, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. DETAIL VIEW OF OLD, PUNCH-TYPE MASTER FIRE ALARM SYSTEM, LOCATED ON S WALL OF ENGINE STORAGE ROOM; LOOKING S. (Ceronie and Ryan) - Watervliet Arsenal, Building No. 22, Westervelt Avenue & Buffington Street, Watervliet, Albany County, NY

  11. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems § 108.445 Alarm and means of escape. (a) Each CO2 system that has a supply of...

  12. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems § 108.445 Alarm and means of escape. (a) Each CO2 system that has a supply of...

  13. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems § 108.445 Alarm and means of escape. (a) Each CO2 system that has a supply of...

  14. 18. DETAIL VIEW OF FIRE ALARM SYSTEM BOARD THAT LISTS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. DETAIL VIEW OF FIRE ALARM SYSTEM BOARD THAT LISTS AREAS IN SHOPS COMPLEX. - Baltimore & Ohio Railroad, Mount Clare Shops, South side of Pratt Street between Carey & Poppleton Streets, Baltimore, Independent City, MD

  15. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems § 108.445 Alarm and means of escape. (a) Each CO2 system that has a supply of...

  16. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems § 108.445 Alarm and means of escape. (a) Each CO2 system that has a supply of...

  17. Research on the fire alarming system of fiber grating

    NASA Astrophysics Data System (ADS)

    Qi, Yaobin

    2007-09-01

    The application of fiber grating sensing technology in fire alarming based on temperature detection has the advantages of high accuracy, high reliability and strong immunity from electronic and magnetic fields. It is especially advantageous to use this system in the petroleum and chemistry industry because it can provide an extraordinary safe means for the fire alarm. But due to the traditional optical Wavelength Division Multiplexing (WDM) technology is limited by the optic source bandwidth, the number of its multiplexing points is few. In this paper WDM technology will be developed mixing with Identified Bragg, which is called Identified and Wavelength Multiplexing, to build the Fiber Grating (FBG) fire alarm system integrated with computers. Some technologies applied in fire alarming system of fiber grating such as the transmission of test signals which pass through modulate and demodulate, the disposal of software system, the output of control signal and the strong ability of anti-disturbance have been studied and discussed.

  18. 124. FIRE ALARM SYSTEM PANEL AT WEST SIDE OF SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    124. FIRE ALARM SYSTEM PANEL AT WEST SIDE OF SOUTH WALL, TRANSFORMER ROOM (112), LSB (BLDG. 770) - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 West, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  19. 47 CFR 80.317 - Radiotelegraph and radiotelephone alarm signals.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...listening watch on the distress frequency. (b) The international radiotelephone alarm signal consists of two substantially sinusoidal audio frequency tones transmitted alternately. One tone must have a frequency of 2200 Hertz and the other a frequency of...

  20. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...HUMAN SERVICES (CONTINUED) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Monitoring Devices § 870.2640 Portable...current between any two points of an electrical system and to sound an alarm if the current...

  1. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...HUMAN SERVICES (CONTINUED) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Monitoring Devices § 870.2640 Portable...current between any two points of an electrical system and to sound an alarm if the current...

  2. Nuthatches eavesdrop on variations in heterospecific chickadee mobbing alarm calls.

    PubMed

    Templeton, Christopher N; Greene, Erick

    2007-03-27

    Many animals recognize the alarm calls produced by other species, but the amount of information they glean from these eavesdropped signals is unknown. We previously showed that black-capped chickadees (Poecile atricapillus) have a sophisticated alarm call system in which they encode complex information about the size and risk of potential predators in variations of a single type of mobbing alarm call. Here we show experimentally that red-breasted nuthatches (Sitta canadensis) respond appropriately to subtle variations of these heterospecific "chick-a-dee" alarm calls, thereby evidencing that they have gained important information about potential predators in their environment. This study demonstrates a previously unsuspected level of discrimination in intertaxon eavesdropping. PMID:17372225

  3. Nuthatches eavesdrop on variations in heterospecific chickadee mobbing alarm calls

    PubMed Central

    Templeton, Christopher N.; Greene, Erick

    2007-01-01

    Many animals recognize the alarm calls produced by other species, but the amount of information they glean from these eavesdropped signals is unknown. We previously showed that black-capped chickadees (Poecile atricapillus) have a sophisticated alarm call system in which they encode complex information about the size and risk of potential predators in variations of a single type of mobbing alarm call. Here we show experimentally that red-breasted nuthatches (Sitta canadensis) respond appropriately to subtle variations of these heterospecific “chick-a-dee” alarm calls, thereby evidencing that they have gained important information about potential predators in their environment. This study demonstrates a previously unsuspected level of discrimination in intertaxon eavesdropping. PMID:17372225

  4. Wireless intelligent alarm technology with pyroelectric infrared sensor

    NASA Astrophysics Data System (ADS)

    Chen, Xiao

    2009-07-01

    Aiming at the defects of monitoring conducted by man in the conventional practice, we study the passive intelligent automatic alarm technology based on the pyroelectric infrared sensor and wireless communication technology. The designed passive infrared wireless alarm is composed of pyroelectric infrared sensors, infrared special chip BISS0001 and their peripheral circuits. When someone enters into the detecting and monitoring range, the alarm will detect the infrared ray of the human radiation by the contactless form and detect the signals of circuit output. Then it translates them into low frequency signals relative with human sports speed, distance and direction, produce corresponding output signals through amplifying by the back state controller, switch on the work power of the wireless transmitting circuit and make it emit the alarm signals. The system enhances the monitoring level and effects and possesses many advantages such as wide detecting range, long detecting distance and high reliability.

  5. Onsite Portable Alarm System - Its Merit and Application

    NASA Astrophysics Data System (ADS)

    Saita, J.; Sato, T.; Nakamura, Y.

    2007-12-01

    Recently an existence of the earthquake early warning system (EEWS) becomes popular. In general, the EEWS will be installed in a fixed observation site and it may consist of several separated components such as a sensing portion, A/D converter, an information processing potion and so on. The processed information for warning may be transmitted to network via fixed communication line, and therefore this kind of alarm system is called as Network Alarm System. On the other hand, after the severe earthquake damage, it is very important to save the disaster victims immediately. These rescue staffs are also under the risk of aftershocks and need a local alarm not depending on the network, so this kind of alarm can be called as Onsite Alarm. But the common early warning system is too complex to set onsite temporary, and even if possible to install, the alarm is too late to receive at the epicentral area. However, the new generation earthquake early warning system FREQL can issue the P wave alarm by minimum 0.2 seconds after P wave detection. And FREQL is characterized as the unique all-in-one seismometer with power unit. At the time of the 2004 Niigata-Ken-Chuetsu earthquake, a land slide attacked a car just passing. A hyper rescue team of Tokyo Fire Department pulled the survivor, one baby, from the land slide area. During their activity the rescue team was exposed to the risk of secondary hazards caused by the aftershocks. It was clear that it is necessary to use a portable warning system to issue the onsite P wave alarm. Because FREQL was originally developed as portable equipment, Tokyo Fire Department asked us to modify it to the portable equipment with the loud sound and the light signal. In this moment, this portable FREQL has equipped in nation wide. When the hyper rescue team of Tokyo Fire Department was sent to Pakistan as a task force for rescue work of the 2005 Pakistan earthquake, the portable FREQL was used as important onsite portable warning system and P wave alarms was actually issued by three times during the rescue work. Although this is one example for the actual application of portable onsite alarm, it is possible to apply the other field as the construction field. In this presentation, Portable Onsite Alarm is discussed from views of its necessity and application.

  6. Pathways to False Allegations of Sexual Assault

    Microsoft Academic Search

    Jessica Engle; William ODonohue

    2012-01-01

    Not all allegations of sexual assault are true. Unfortunately, there has been little work on understanding the prevalence of false allegations or pathways to these. This paper proposes 11 pathways to false allegations of sexual assault: (a) lying, (b) implied consent, (c) false memories, (d) intoxication, (e) antisocial personality disorder, (f) borderline personality disorder, (g) histrionic personality disorder, (h) delirium,

  7. Removing False Paths from Combinational Modules 1

    Microsoft Academic Search

    Yuji Kukimoto; Robert K. Brayton

    The existence of false paths complicates the task of accurate tim- ing analysis significantly. A technique to remove false paths from a combinational circuit without degrading its performance h as a prac- tical value since topological timing analysis is then good e nough to estimate the performance of false-path-free circuits accu rately. One can think of the KMS algorithm (1)

  8. Do Aphid Colonies Amplify their Emission of Alarm Pheromone?

    PubMed Central

    Hatano, Eduardo; Kunert, Grit; Bartram, Stefan; Boland, Wilhelm; Gershenzon, Jonathan

    2008-01-01

    When aphids are attacked by natural enemies, they emit alarm pheromone to alert conspecifics. For most aphids tested, (E)-?-farnesene (EBF) is the main, or only, constituent of the alarm pheromone. In response to alarm pheromone, alerted aphids drop off the plant, walk away, or attempt to elude predators. However, under natural conditions, EBF concentration might be low due to the low amounts emitted, to rapid air movement, or to oxidative degradation. To ensure that conspecifics are warned, aphids might conceivably amplify the alarm signal by emitting EBF in response to EBF emitted by other aphids. To examine whether such amplification occurs, we synthesized deuterated EBF (DEBF), which allowed us to differentiate between applied and aphid-derived chemical. Colonies of Acyrthosiphon pisum were treated with DEBF, and headspace volatiles were collected and analyzed for evidence of aphid-derived EBF. No aphid-derived EBF was detected, suggesting that amplification of the alarm signal does not occur. We discuss the disadvantages of alarm signal reinforcement. PMID:18704588

  9. White Rock in False Color

    NASA Technical Reports Server (NTRS)

    2005-01-01

    [figure removed for brevity, see original site]

    The THEMIS VIS camera is capable of capturing color images of the Martian surface using five different color filters. In this mode of operation, the spatial resolution and coverage of the image must be reduced to accommodate the additional data volume produced from using multiple filters. To make a color image, three of the five filter images (each in grayscale) are selected. Each is contrast enhanced and then converted to a red, green, or blue intensity image. These three images are then combined to produce a full color, single image. Because the THEMIS color filters don't span the full range of colors seen by the human eye, a color THEMIS image does not represent true color. Also, because each single-filter image is contrast enhanced before inclusion in the three-color image, the apparent color variation of the scene is exaggerated. Nevertheless, the color variation that does appear is representative of some change in color, however subtle, in the actual scene. Note that the long edges of THEMIS color images typically contain color artifacts that do not represent surface variation.

    This false color image shows the wind eroded deposit in Pollack Crater called 'White Rock'. This image was collected during the Southern Fall Season.

    Image information: VIS instrument. Latitude -8, Longitude 25.2 East (334.8 West). 0 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

    NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

  10. Iani Chaos in False Color

    NASA Technical Reports Server (NTRS)

    2005-01-01

    [figure removed for brevity, see original site]

    The THEMIS VIS camera is capable of capturing color images of the Martian surface using five different color filters. In this mode of operation, the spatial resolution and coverage of the image must be reduced to accommodate the additional data volume produced from using multiple filters. To make a color image, three of the five filter images (each in grayscale) are selected. Each is contrast enhanced and then converted to a red, green, or blue intensity image. These three images are then combined to produce a full color, single image. Because the THEMIS color filters don't span the full range of colors seen by the human eye, a color THEMIS image does not represent true color. Also, because each single-filter image is contrast enhanced before inclusion in the three-color image, the apparent color variation of the scene is exaggerated. Nevertheless, the color variation that does appear is representative of some change in color, however subtle, in the actual scene. Note that the long edges of THEMIS color images typically contain color artifacts that do not represent surface variation.

    This false color image of a portion of the Iani Chaos region was collected during the Southern Fall season.

    Image information: VIS instrument. Latitude -2.6 Longitude 342.4 East (17.6 West). 36 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

    NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

  11. MITIGATING WETLANDS LOSSES

    EPA Science Inventory

    Under Section 404 of the Clean Water Act, compensatory mitigation of wetlands is required to offset any unavoidable adverse impacts to wetlands that cannot otherwise be minimized. Compensatory mitigation usually is in the form of restoration, enhancement, or creation of new wetl...

  12. MTS in false positive reduction for multi-sensor fusion

    NASA Astrophysics Data System (ADS)

    Woodley, Robert; Gosnell, Michael; Cudney, Elizabeth

    2014-05-01

    The Mahalanobis Taguchi System (MTS) is a relatively new tool in the vehicle health maintenance domain, but has some distinct advantages in current multi-sensor implementations. The use of Mahalanobis Spaces (MS) allows the algorithm to identify characteristics of sensor signals to identify behaviors in machines. MTS is extremely powerful with the caveat that the correct variables are selected to form the MS. In this research work, 56 sensors monitor various aspects of the vehicles. Typically, using the MTS process, identification of useful variables is preceded by validation of the measurements scale. However, the MTS approach doesn't directly include any mitigating steps should the measurement scale not be validated. Existing work has performed outlier removal in construction of the MS, which can lead to better validation. In our approach, we modify the outlier removal process with more liberal definitions of outliers to better identify variables' impact prior to identification of useful variables. This subtle change substantially lowered the false positive rate due to the fact that additional variables were retained. Traditional MTS approaches identify useful variables only to the extent they provide usefulness in identifying the positive (abnormal) condition. The impact of removing false negatives is not included. Initial results show our approach can reduce false positive values while still maintaining complete fault identification for this vehicle data set.

  13. Mitigation Action Plan

    SciTech Connect

    Not Available

    1994-02-01

    This Mitigation Action Plan (MAP) focuses on mitigation commitments stated in the Supplemental Environmental Impact Statement (SEIS) and the Record of Decision (ROD) for the Naval Petroleum Reserve No. 1 (NPR-1). Specific commitments and mitigation implementation actions are listed in Appendix A-Mitigation Actions, and form the central focus of this MAP. They will be updated as needed to allow for organizational, regulatory, or policy changes. It is the intent of DOE to comply with all applicable federal, state, and local environmental, safety, and health laws and regulations. Eighty-six specific commitments were identified in the SEIS and associated ROD which pertain to continued operation of NPR-1 with petroleum production at the Maximum Efficient Rate (MER). The mitigation measures proposed are expected to reduce impacts as much as feasible, however, as experience is gained in actual implementation of these measures, some changes may be warranted.

  14. Reciprocal recognition of sifaka ( Propithecus verreauxi verreauxi ) and redfronted lemur ( Eulemur fulvus rufus ) alarm calls

    Microsoft Academic Search

    Claudia Fichtel

    2004-01-01

    Redfronted lemurs ( Eulemur fulvus rufus) and Verreaux's sifakas ( Propithecus verreauxi verreauxi) occur sympatrically in western Madagascar. Both species exhibit a so-called mixed alarm call system with functionally referential alarm calls for raptors and general alarm calls for carnivores and raptors. General alarm calls also occur in other contexts associated with high arousal, such as inter-group encounters. Field playback

  15. A mutual understanding? Interspecific responses by birds to each other's aerial alarm calls

    Microsoft Academic Search

    Robert D. Magrath; Benjamin J. Pitcher; Janet L. Gardner

    2007-01-01

    Individuals are likely to benefit from responding to the alarm signals of other species with similar predators, and mutual interspecific responses to aerial (hawk) alarms are thought to be common in birds, in part because similarity in alarm call structure among species might facilitate detection or interpretation. However, there has been no test of whether interspecific responses to aerial alarm

  16. CRT graphic display system of automatic fire alarm system based on GIS

    Microsoft Academic Search

    Huide Liu; Lili Gao; Suwei Li; Junfu Li

    2010-01-01

    According to the fire alarm system and the problems that the CRT, puts forward the automatic fire alarm system based on GIS graphic display CRT and discusses its implementation process. Firstly introduces the CRT graphic display system, expounds the necessity and feasibility of CRT graphic display system of automatic fire alarm system based on GIS design. Automatic fire alarm system

  17. An alarm correlation algorithm for network management based on root cause analysis

    Microsoft Academic Search

    Dae Sun Kim; Hiroyuki Shinbo; Hidetoshi Yokota

    2011-01-01

    The alarm correlation is an essential function of network management systems to provide detection, isolation and correlation of unusual operational behaviour of telecommunication network. However, existing alarm correlation approaches still rely on the manual processing, and depend on the knowledge of the network operators. Since, the telecommunication network produces a number of alarms which are so called the alarm floods,

  18. Epidermal 'alarm substance' cells of fishes maintained by non-alarm functions: possible defence against pathogens, parasites and UVB radiation.

    PubMed

    Chivers, Douglas P; Wisenden, Brian D; Hindman, Carrie J; Michalak, Tracy A; Kusch, Robin C; Kaminskyj, Susan G W; Jack, Kristin L; Ferrari, Maud C O; Pollock, Robyn J; Halbgewachs, Colin F; Pollock, Michael S; Alemadi, Shireen; James, Clayton T; Savaloja, Rachel K; Goater, Cameron P; Corwin, Amber; Mirza, Reehan S; Kiesecker, Joseph M; Brown, Grant E; Adrian, James C; Krone, Patrick H; Blaustein, Andrew R; Mathis, Alicia

    2007-10-22

    Many fishes possess specialized epidermal cells that are ruptured by the teeth of predators, thus reliably indicating the presence of an actively foraging predator. Understanding the evolution of these cells has intrigued evolutionary ecologists because the release of these alarm chemicals is not voluntary. Here, we show that predation pressure does not influence alarm cell production in fishes. Alarm cell production is stimulated by exposure to skin-penetrating pathogens (water moulds: Saprolegnia ferax and Saprolegnia parasitica), skin-penetrating parasites (larval trematodes: Teleorchis sp. and Uvulifer sp.) and correlated with exposure to UV radiation. Suppression of the immune system with environmentally relevant levels of Cd inhibits alarm cell production of fishes challenged with Saprolegnia. These data are the first evidence that alarm substance cells have an immune function against ubiquitous environmental challenges to epidermal integrity. Our results indicate that these specialized cells arose and are maintained by natural selection owing to selfish benefits unrelated to predator-prey interactions. Cell contents released when these cells are damaged in predator attacks have secondarily acquired an ecological role as alarm cues because selection favours receivers to detect and respond adaptively to public information about predation. PMID:17686729

  19. Epidermal ‘alarm substance’ cells of fishes maintained by non-alarm functions: possible defence against pathogens, parasites and UVB radiation

    PubMed Central

    Chivers, Douglas P; Wisenden, Brian D; Hindman, Carrie J; Michalak, Tracy A; Kusch, Robin C; Kaminskyj, Susan G.W; Jack, Kristin L; Ferrari, Maud C.O; Pollock, Robyn J; Halbgewachs, Colin F; Pollock, Michael S; Alemadi, Shireen; James, Clayton T; Savaloja, Rachel K; Goater, Cameron P; Corwin, Amber; Mirza, Reehan S; Kiesecker, Joseph M; Brown, Grant E; Adrian, James C; Krone, Patrick H; Blaustein, Andrew R; Mathis, Alicia

    2007-01-01

    Many fishes possess specialized epidermal cells that are ruptured by the teeth of predators, thus reliably indicating the presence of an actively foraging predator. Understanding the evolution of these cells has intrigued evolutionary ecologists because the release of these alarm chemicals is not voluntary. Here, we show that predation pressure does not influence alarm cell production in fishes. Alarm cell production is stimulated by exposure to skin-penetrating pathogens (water moulds: Saprolegnia ferax and Saprolegnia parasitica), skin-penetrating parasites (larval trematodes: Teleorchis sp. and Uvulifer sp.) and correlated with exposure to UV radiation. Suppression of the immune system with environmentally relevant levels of Cd inhibits alarm cell production of fishes challenged with Saprolegnia. These data are the first evidence that alarm substance cells have an immune function against ubiquitous environmental challenges to epidermal integrity. Our results indicate that these specialized cells arose and are maintained by natural selection owing to selfish benefits unrelated to predator–prey interactions. Cell contents released when these cells are damaged in predator attacks have secondarily acquired an ecological role as alarm cues because selection favours receivers to detect and respond adaptively to public information about predation. PMID:17686729

  20. FAULT DIAGNOSIS WITH MULTI-STATE ALARMS IN A NUCLEAR POWER CONTROL SIMULATOR

    SciTech Connect

    Austin Ragsdale; Roger Lew; Brian P. Dyre; Ronald L. Boring

    2012-10-01

    This research addresses how alarm systems can increase operator performance within nuclear power plant operations. The experiment examined the effect of two types of alarm systems (two-state and three-state alarms) on alarm compliance and diagnosis for two types of faults differing in complexity. We hypothesized three-state alarms would improve performance in alarm recognition and fault diagnoses over that of two-state alarms. We used sensitivity and criterion based on Signal Detection Theory to measure performance. We further hypothesized that operator trust would be highest when using three-state alarms. The findings from this research showed participants performed better and had more trust in three-state alarms compared to two-state alarms. Furthermore, these findings have significant theoretical implications and practical applications as they apply to improving the efficiency and effectiveness of nuclear power plant operations.

  1. Fault Diagnosis with Multi-State Alarms in a Nuclear Power Control Simulation

    SciTech Connect

    Stuart A. Ragsdale; Roger Lew; Ronald L. Boring

    2014-09-01

    This research addresses how alarm systems can increase operator performance within nuclear power plant operations. The experiment examined the effects of two types of alarm systems (two-state and three-state alarms) on alarm compliance and diagnosis for two types of faults differing in complexity. We hypothesized the use of three-state alarms would improve performance in alarm recognition and fault diagnoses over that of two-state alarms. Sensitivity and criterion based on the Signal Detection Theory were used to measure performance. We further hypothesized that operator trust would be highest when using three-state alarms. The findings from this research showed participants performed better and had more trust in three-state alarms compared to two-state alarms. Furthermore, these findings have significant theoretical implications and practical applications as they apply to improving the efficiency and effectiveness of nuclear power plant operations.

  2. Attributions of Cancer ‘Alarm’ Symptoms in a Community Sample

    PubMed Central

    Whitaker, Katriina L.; Scott, Suzanne E.; Winstanley, Kelly; Macleod, Una; Wardle, Jane

    2014-01-01

    Background Attribution of early cancer symptoms to a non-serious cause may lead to longer diagnostic intervals. We investigated attributions of potential cancer ‘alarm’ and non-alarm symptoms experienced in everyday life in a community sample of adults, without mention of a cancer context. Methods A questionnaire was mailed to 4858 adults (?50 years old, no cancer diagnosis) through primary care, asking about symptom experiences in the past 3 months. The word cancer was not mentioned. Target 'alarm' symptoms, publicised by Cancer Research UK, were embedded in a longer symptom list. For each symptom experienced, respondents were asked for their attribution (‘what do you think caused it'), concern about seriousness (‘not at all’ to ‘extremely’), and help-seeking (‘did you contact a doctor about it’: Yes/No). Results The response rate was 35% (n?=?1724). Over half the respondents (915/1724; 53%) had experienced an ‘alarm’ symptom, and 20 (2%) cited cancer as a possible cause. Cancer attributions were highest for ‘unexplained lump’; 7% (6/87). Cancer attributions were lowest for ‘unexplained weight loss’ (0/47). A higher proportion (375/1638; 23%) were concerned their symptom might be ‘serious’, ranging from 12% (13/112) for change in a mole to 41% (100/247) for unexplained pain. Just over half had contacted their doctor about their symptom (59%), although this varied by symptom. Alarm symptoms were appraised as more serious than non-alarm symptoms, and were more likely to trigger help-seeking. Conclusions Consistent with retrospective reports from cancer patients, ‘alarm’ symptoms experienced in daily life were rarely attributed to cancer. These results have implications for understanding how people appraise and act on symptoms that could be early warning signs of cancer. PMID:25461959

  3. Design and Implementation of a Mobile Phone Integrated Alarming-System

    Microsoft Academic Search

    Liao YunYan; Yang YinGen

    2009-01-01

    This paper proposes a mobile phone integrated alarming-system, which has two models: mobile, fixed alarm-ways. The alarming information contains local sound, video and GPS information. The system provides two ways of reading the alarming information: web ways and mobile alarming media player ways for instant checking or repeated watching and analysis .The real-time transmission of sound and video information is

  4. Nuclear-power-plant perimeter-intrusion alarm systems

    SciTech Connect

    Halsey, D.J.

    1982-04-01

    Timely intercept of an intruder requires the examination of perimeter barriers and sensors in terms of reliable detection, immediate assessment and prompt response provisions. Perimeter security equipment and operations must at the same time meet the requirements of the Code of Federal Regulations, 10 CFR 73.55 with some attention to the performance and testing figures of Nuclear Regulatory Guide 5.44, Revision 2, May 1980. A baseline system is defined which recommends a general approach to implementing perimeter security elements: barriers, lighting, intrusion detection, alarm assessment. The baseline approach emphasizes cost/effectiveness achieved by detector layering and logic processing of alarm signals to produce reliable alarms and low nuisance alarm rates. A cost benefit of layering along with video assessment is reduction in operating expense. The concept of layering is also shown to minimize testing costs where detectability performance as suggested by Regulatory Guide 5.44 is to be performed. Synthesis of the perimeter intrusion alarm system and limited testing of CCTV and Video Motion Detectors (VMD), were performed at E-Systems, Greenville Division, Greenville, Texas during 1981.

  5. False vs True rupture of membranes.

    PubMed

    Cohain, J S

    2015-05-01

    New medical nomenclature: False rupture of membranes or False ROM and Double rupture of membranes or Double ROM are being introduced into the English language. A single caregiver found about 1% of term births and 10% of term PROM involved False ROM, in which the chorion breaks while the amnion remains intact. Diagnostically, if meconium or vernix is observed, then both the chorionic and amniotic sacs have broken. In the absence of detection of vernix or meconium, an immediate accurate diagnostic test for False ROM is lacking and differentiating between True ROM from False ROM is possible only after leaking stops, which takes hours to days. The obvious benefit of differentiating between 'True' and 'False' ROM, is that in the case of False ROM, the amnion is intact and ascending infections are likely not at increased risk, although research is lacking as to whether False ROM is associated with an increased rate of ascending infection. Three cases of False ROM are presented and avenues for future research are enumerated. PMID:25279443

  6. Mitigation win-win

    NASA Astrophysics Data System (ADS)

    Moran, Dominic; Lucas, Amanda; Barnes, Andrew

    2013-07-01

    Win-win messages regarding climate change mitigation policies in agriculture tend to oversimplify farmer motivation. Contributions from psychology, cultural evolution and behavioural economics should help to design more effective policy.

  7. Orbital Debris Mitigation

    NASA Technical Reports Server (NTRS)

    Kelley, R. L.; Jarkey, D. R.; Stansbery, G.

    2014-01-01

    Policies on limiting orbital debris are found throughout the US Government, many foreign space agencies, and as adopted guidelines in the United Nations. The underlying purpose of these policies is to ensure the environment remains safe for the operation of robotic and human spacecraft in near- Earth orbit. For this reason, it is important to consider orbital debris mitigation during the design of all space vehicles. Documenting compliance with the debris mitigation guidelines occurs after the vehicle has already been designed and fabricated for many CubeSats, whereas larger satellites are evaluated throughout the design process. This paper will provide a brief explanation of the US Government Orbital Debris Mitigation Standard Practices, a discussion of international guidelines, as well as NASA's process for compliance evaluation. In addition, it will discuss the educational value of considering orbital debris mitigation requirements as a part of student built satellite design.

  8. RFI Mitigation Workshop

    NASA Astrophysics Data System (ADS)

    2010-05-01

    The increased sensitivity of passive instrumentation in radio astronomy and remote sensing and the intensifying active use of the spectrum have led to an increasing level of radio frequency interference (RFI) of the active services on the passive use of the spectrum. Advances in technology and computing have opened up new possibilities for mitigating the effects of certain classes of interference in the observing data. Interference in allocated bands always leads to data loss for the passive users of the spectrum even if interference mitigation is applied. However, interference mitigation in non-allocated spectral bands may facilitate the partial use of this spectrum for passive (non-interfering) observations. There is no generic method to mitigate all types of interference, so a multi-layered system approach may be advisable to reduce detrimental effects for a congested interference environment. Specific mitigation methods implemented at different points in the data acquisition chain will thus result in a cumulative mitigation effect on the data. This third RFI Mitigation Workshop considered RFI mitigation in radio astronomy in all its facets with the aim of facilitating the implementation of instrumental and data processing techniques. This workshop aimed to take a forward look at applications for the next generation of radio instruments, such as the SKA and its pathfinders and LOFAR, as well as considering their application to existing instruments. This workshop has been organized by ASTRON and NAIC, with support from the Engineering Forum of FP7 RadioNet, the SKA Project Development Office, and in collaboration with CRAF and IUCAF.

  9. The function of nonlinear phenomena in meerkat alarm calls

    PubMed Central

    Townsend, Simon W.; Manser, Marta B.

    2011-01-01

    Nonlinear vocal phenomena are a ubiquitous feature of human and non-human animal vocalizations. Although we understand how these complex acoustic intrusions are generated, it is not clear whether they function adaptively for the animals producing them. One explanation is that nonlinearities make calls more unpredictable, increasing behavioural responses and ultimately reducing the chances of habituation to these call types. Meerkats (Suricata suricatta) exhibit nonlinear subharmonics in their predator alarm calls. We specifically tested the ‘unpredictability hypothesis’ by playing back naturally occurring nonlinear and linear medium-urgency alarm call bouts. Results indicate that subjects responded more strongly and foraged less after hearing nonlinear alarm calls. We argue that these findings support the unpredictability hypothesis and suggest this is the first study in animals or humans to show that nonlinear vocal phenomena function adaptively. PMID:20659926

  10. Description of ALARMA: the alarm algorithm developed for the Nuclear Car Wash

    SciTech Connect

    Luu, T; Biltoft, P; Church, J; Descalle, M; Hall, J; Manatt, D; Mauger, J; Norman, E; Petersen, D; Pruet, J; Prussin, S; Slaughter, D

    2006-11-28

    The goal of any alarm algorithm should be that it provide the necessary tools to derive confidence limits on whether the existence of fissile materials is present in cargo containers. It should be able to extract these limits from (usually) noisy and/or weak data while maintaining a false alarm rate (FAR) that is economically suitable for port operations. It should also be able to perform its analysis within a reasonably short amount of time (i.e. {approx} seconds). To achieve this, it is essential that the algorithm be able to identify and subtract any interference signature that might otherwise be confused with a fissile signature. Lastly, the algorithm itself should be user-intuitive and user-friendly so that port operators with little or no experience with detection algorithms may use it with relative ease. In support of the Nuclear Car Wash project at Lawrence Livermore Laboratory, we have developed an alarm algorithm that satisfies the above requirements. The description of the this alarm algorithm, dubbed ALARMA, is the purpose of this technical report. The experimental setup of the nuclear car wash has been well documented [1, 2, 3]. The presence of fissile materials is inferred by examining the {beta}-delayed gamma spectrum induced after a brief neutron irradiation of cargo, particularly in the high-energy region above approximately 2.5 MeV. In this region naturally occurring gamma rays are virtually non-existent. Thermal-neutron induced fission of {sup 235}U and {sup 239}P, on the other hand, leaves a unique {beta}-delayed spectrum [4]. This spectrum comes from decays of fission products having half-lives as large as 30 seconds, many of which have high Q-values. Since high-energy photons penetrate matter more freely, it is natural to look for unique fissile signatures in this energy region after neutron irradiation. The goal of this interrogation procedure is a 95% success rate of detection of as little as 5 kilograms of fissile material while retaining at most .1% false alarm rate. Plywood is used to simulate hydrogenous cargo material and steel (pipes) is used to simulate metallic cargo. The wood consists of 120 x 240 cm sheets and has approximately .65 g/cm{sup 3}. The steel pipes have approximately 10 cm diameters x 6.4 mm wall thickness are .6 g/cm{sup 3}. Fissile sources consist of a ''large'' (380 g) and ''small'' (250 g) sample of HEU (U{sub 3}O{sub 8} 94% enriched). Note that the masses of the HEU sources used in our experimental runs are at least an order of magnitude smaller than 5 kilograms. Runs are done with either wood or steel cargoes stacked at various heights and the HEU sources placed at various depths within the cargo.

  11. Alarm timing, trust and driver expectation for forward collision warning systems.

    PubMed

    Abe, Genya; Richardson, John

    2006-09-01

    In order to improve road safety, automobile manufacturers are now developing Forward Collision Warning Systems (FCWS). However, there has been insufficient consideration of how drivers may respond to FCWS. This driving simulator study focused on alarm timing and its impact on driver response to alarm. The experimental investigation considered driver perception of alarm timings and its influence on trust at three driving speeds (40, 60 and 70 mile/h) and two time headways (1.7 and 2.2 s). The results showed that alarm effectiveness varied in response to driving conditions. Alarm promptness had a greater influence on ratings of trust than improvements in braking performance enabled by the alarm system. Moreover, alarms which were presented after braking actions had been initiated were viewed as late alarms. It is concluded that drivers typically expect alarms to be presented before they initiate braking actions and when this does not happen driver trust in the system is substantially decreased. PMID:16364231

  12. Evaluation of fire-safety programs that use 10-year smoke alarms.

    PubMed

    Jackson, Mark; Wilson, Jonathan; Akoto, Judith; Dixon, Sherry; Jacobs, David E; Ballesteros, Michael F

    2010-10-01

    The Centers for Disease Control and Prevention began funding a Smoke Alarm Installation and Fire Safety Education (SAIFE) program in 1998. This program involves the installation of lithium-powered "10-year" smoke alarms in homes at high risk for fires and injuries. This study aimed to (1) determine among original SAIFE homes if the lithium-powered alarms were still present and functional 8-10 years after installation and (2) understand factors related to smoke alarm presence and functionality. Data on a total of 384 homes and 601 smoke alarms in five states were collected and analyzed. Only one-third of alarms were still functional; 37% of installed alarms were missing; and 30% of alarms were present, but not functioning. Alarms were less likely to be functioning if they were installed in the kitchen and if homes had a different resident at follow-up. Of the 351 alarms that were present and had a battery at the time of the evaluation, only 21% contained lithium-powered batteries. Of these, 78% were still functioning. Programs that install lithium-powered alarms should use units that have sealed-in batteries and "hush" buttons. Additionally, education should be given on smoke alarm maintenance that includes a message that batteries in these alarms should not be replaced. Lithium-powered smoke alarms should last up to 10 years if maintained properly. PMID:20177753

  13. Mediastinal false aneurysm after thoracic aortic surgery

    Microsoft Academic Search

    Takahiro Katsumata; Narain Moorjani; Giuseppe Vaccari; Stephen Westaby

    2000-01-01

    Background. Postoperative mediastinal false aneurysm is associated with a substantial morbidity and mortality. Surgical treatment is mandatory, although the individual approach varies according to the type of pathologic process, infection status, and site of origin of the aneurysm.Methods. Between April 1993 and February 1999, we treated 10 patients, aged 25 to 73 years, with anastomotic mediastinal false aneurysm originating from

  14. How Does Distinctive Processing Reduce False Recall?

    ERIC Educational Resources Information Center

    Hunt, R. Reed; Smith, Rebekah E.; Dunlap, Kathryn R.

    2011-01-01

    False memories arising from associatively related lists are a robust phenomenon that resists many efforts to prevent it. However, a few variables have been shown to reduce this form of false memory. Explanations for how the reduction is accomplished have focused on either output monitoring processes or constraints on access, but neither idea alone…

  15. ARE FALSE MEMORIES PSI-CONDUCIVE?

    Microsoft Academic Search

    Nicholas Rose; Susan Blackmore

    2001-01-01

    1 ABSTRACT: S. J. Blackmore and N. J. Rose (1997) reported an experiment that used false memory creation to generate a significant psi effect. This article reports a series of 3 experiments that attempted to replicate this effect and examines the relationship between false memory creation and paranormal belief. Experiment 1 is a faithful replication of the original. Experiment 2

  16. LVIS Tree Height Cross Section (false color)

    NSDL National Science Digital Library

    Randall Jones

    1999-09-17

    This animation starts with a false-color map of tree heights north of San Jose, Costa Rica, and changes to a close-up 3D cut-away of a section of the forest, also in false color. Data from LVIS observations taken in March, 1998.

  17. University of North Carolina at Charlotte Design and Construction Manual Section 2, Division 28 Voice Evacuation Fire Alarm System Appendix

    E-print Network

    Xie,Jiang (Linda)

    in fire alarm and detection systems. This provider shall employ factory trained and NICET Level III ­ Voice Evacuation Fire Alarm System Appendix SECTION 2 DIVISION 28 VOICE EVACUATION FIRE ALARM SYSTEMS 28 ­ Voice Evacuation Fire Alarm System Appendix DIVISION 28-VOICE EVACUATION FIRE ALARM SYSTEM

  18. On False-Positive and False-Negative Decisions with a Mastery Test.

    ERIC Educational Resources Information Center

    Wilcox, Rand R.

    1979-01-01

    Methods are described for obtaining upper and lower bounds to both false-positive and false-negative decisions with a mastery test. These methods make no assumptions about the form of the true score distribution. (CTM)

  19. Neutrophil-derived azurocidin alarms the immune system

    Microsoft Academic Search

    Oliver Soehnlein; Lennart Lindbom

    2008-01-01

    Azurocidin (heparin-binding protein\\/ cationic antimicrobial protein of 37 kD) is a pro- tein that is mobilized rapidly from emigrating poly- morphonuclear leukocytes (PMN). Initially, this in- active serine protease was recognized for its antimicrobial effects. However, it soon became ap- parent that azurocidin may act to alarm the im- mune system in different ways and thus serve as an important

  20. 46 CFR 162.050-35 - Bilge alarm: Approval tests.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2) of this section are repeated seven additional times. During the last hour, the alarm must be inclined at an angle of 22.5° with the plane of its normal operating position. [USCG-2004-18939, 74 FR 3391, Jan. 16,...

  1. 46 CFR 162.050-35 - Bilge alarm: Approval tests.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2) of this section are repeated seven additional times. During the last hour, the alarm must be inclined at an angle of 22.5° with the plane of its normal operating position. [USCG-2004-18939, 74 FR 3391, Jan. 16,...

  2. 46 CFR 162.050-35 - Bilge alarm: Approval tests.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2) of this section are repeated seven additional times. During the last hour, the alarm must be inclined at an angle of 22.5° with the plane of its normal operating position. [USCG-2004-18939, 74 FR 3391, Jan. 16,...

  3. 46 CFR 162.050-35 - Bilge alarm: Approval tests.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2) of this section are repeated seven additional times. During the last hour, the alarm must be inclined at an angle of 22.5° with the plane of its normal operating position. [USCG-2004-18939, 74 FR 3391, Jan. 16,...

  4. 46 CFR 162.050-35 - Bilge alarm: Approval tests.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2) of this section are repeated seven additional times. During the last hour, the alarm must be inclined at an angle of 22.5° with the plane of its normal operating position. [USCG-2004-18939, 74 FR 3391, Jan. 16,...

  5. Cost-Effective School Alarm Systems. Security Topics Series.

    ERIC Educational Resources Information Center

    Kaufer, Steve

    This document outlines considerations in the selection of a cost-effective school-alarm system. Steps in the planning process include: conducting a district needs assessment; gathering input from all staff levels; consulting technical expertise; and selecting a security system that can be integrated with other site needs. It further describes the…

  6. Detection system ensures positive alarm activation in digital message loss

    NASA Technical Reports Server (NTRS)

    Bokros, P.; Burstein, A.; Hewitt, E. D.

    1966-01-01

    Lost Word Detection System /LOWDS/ provides special identification for each error detection message transmitted from receiver to transmitter. The message is identified as an original message or an n-times retransmitted message so the receiver can detect where a retransmission request was not fulfilled and activate an alarm.

  7. 30 CFR 56.14132 - Horns and backup alarms.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...equipment shall have— (i) An automatic reverse-activated signal alarm; (ii...sounds at least once for each three feet of reverse movement; (iii) A discriminating...surrounding noise level. (3) An automatic reverse-activated strobe light may be used...

  8. 30 CFR 56.14132 - Horns and backup alarms.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...equipment shall have— (i) An automatic reverse-activated signal alarm; (ii...sounds at least once for each three feet of reverse movement; (iii) A discriminating...surrounding noise level. (3) An automatic reverse-activated strobe light may be used...

  9. A simple alarm device for the Bennet PR2 ventilator

    Microsoft Academic Search

    Stephan Stoyanov; Søren Jørgensen

    1978-01-01

    A simple alarm device for use with the Bennet PR-2 ventilator is described. It is based on the operation of a photo-electric cell, is simple in construction, and can be used on other types of ventilators if the pressure gauge is compatible.

  10. Points & Deviations - A pattern language for fire alarm systems

    Microsoft Academic Search

    Peter Molin; Lennart Ohlsson

    1996-01-01

    After an object-orient ed framework for micro-processor based fire alarm systems had been implemented and the first instantiated system had reached product status an effort was undertaken to clearly document the architecture embedded in the framework. The result of this effort was a small pattern language which is presented in this paper. Important patterns in this language are the Point

  11. Original article Effects of honey-bee alarm pheromone compounds

    E-print Network

    Paris-Sud XI, Université de

    Original article Effects of honey-bee alarm pheromone compounds on the behaviour of Varroa) Summary — In a simultaneous choice test, bees killed by freezing were more attractive to Varroa than bees stung to death by other bees. The smell of the sting apparatus proved to be repellent for Varroa

  12. A ship fire alarm system based on fuzzy neural network

    Microsoft Academic Search

    Wang Xihuai; Xiao Jianmei; Bao Minzhong

    2000-01-01

    The purpose of a ship fire alarm system is to detect a fire at an earlier stage in the ship and then to give a highly reliable judgement result. The paper presents a multi-sensor fire detection algorithm using two fire parameters (temperature and smoke density). The processing of the sensor signals are carried out by a fuzzy inference system based

  13. Intelligent Fire Alarm System Based on Fuzzy Neural Network

    Microsoft Academic Search

    Yu Qiongfang; Zheng Dezhong; Fu Yongli; Dong Aihua

    2009-01-01

    Fire is a kind of disaster threatening the social wealth and humanity's safety. The fire detection is the special type signal's detection, system must have the ability of automatic adjust the operational parameters to adapt to the environment change. Traditional fire detection systems' intellectualized degree are low, the error alarm and the leakage take place frequently. In order to reduce

  14. A Cellular Phone Based Home \\/ Office Controller & Alarm System

    Microsoft Academic Search

    H. Haldun; Nihat DALDAL

    2006-01-01

    Remote management of several home and office appliances is a subject of growing interest and in recent years we have seen many systems providing such controls. In this study, we have developed a cellular phone based home\\/office remote controller equipped with power controllers, an alarm system, a voice memory and a back-up battery unit. In traditional PSTN based remote controllers,

  15. Frequency-domain fluorescence based fiber optic fire alarm system

    Microsoft Academic Search

    T. Sun; Z. Y. Zhang; K. T. V. Grattan

    2001-01-01

    Erbium and thulium doped fibers have been investigated in this work, for the first time, to determine their potential in fire or high temperature alarm applications based on the use of fluorescence decay in the frequency domain. Two configurations of the sensing system have been tested and compared, with particular reference to their minimum spatial resolution and location discrimination characteristics.

  16. A Fire-Alarming Method Based on Video Processing

    Microsoft Academic Search

    Ping-He Huang; Jing-Yong Su; Zhe-Ming Lu; Jeng-Shyang Pan

    2006-01-01

    This paper presents a fire-alarming method based on video processing. We propose a system that uses color and motion information extracted from video sequences to detect fire. Flame can be recognized according to its color which is a primary element of fire images. Thus choosing a suitable color model is the key to detect flames from fire images. An effective

  17. ONE-WAY FIRE WARNING ALARM SYSTEM FOR UNDERGROUND MINES

    Microsoft Academic Search

    KENNETH E. HJELMSTAD; MARK A. ACKERSON

    Abstract - An ideal,fire,warning,alarm,system,for underground mines would be low cost, convenient, fast, re1 iable, and able to warn all underground workers. Present warning systems, such as phones, messengers, and stench, fail one or more of these criteria. The U.S. Bureau,of Mines may,have,devised,the,i deal

  18. Smart Wireless Video Sensor Network for Fire Alarm

    Microsoft Academic Search

    Qiulin Li; Qun Hao; Kai Zhang

    2010-01-01

    Smart Wireless Video Sensor Network (SWVSN) provides a new approach for fire detection and alarm. Compare with traditional approach, the system based on SWVSN proposed in this paper has features of smart event-oriented data processing, convenient arrangement, flexible network organizing. The system consists of three layers including camera node layer, base station layer and control layer. Due to using lower

  19. Design and Implementation of Mobile Robot Remote Fire Alarm System

    Microsoft Academic Search

    Hongke Xu; Hao Chen; Chao Cai; Xunzhao Guo; Jianwu Fang; Zhu Sun

    2011-01-01

    The current fire fighting robot accomplishes mostly assignments independently, which cannot meet the demand that managers in remote terminal mastery the real-time information of fire scene. Aiming at this problem, this paper designs and implements the mobile robot remote fire alarm system, which is composed of two parts: mobile robot and remote terminal. Modules of the two parts which consist

  20. Ionization analyzing air pollution, smoke, and fire alarm device

    Microsoft Academic Search

    Beyersdorf

    1976-01-01

    An ionization analyzing alarm system of extreme accuracy independent of atmospheric turbulences caused by fire and of minute dimensions, ease and safety of manufacture, assembly and repairs and devoid of forced air devices is provided having an air baffle zone, a first ionization chamber with advantageously located electrodes, radioactive source and circuitry and optionally a second ionization chamber with radioactive

  1. LonWorks-based intelligent train's fire alarming control network

    Microsoft Academic Search

    Yu Zujun; Shi Hongmei; Ai Li; Guo Baoqing

    2002-01-01

    LonWorks Field Bus is introduced. Then one way of using this technology to design intelligent train's fire alarming and controlling network is presented. This way successfully realizes the serial port communication between the neuron chip and PC or ?p. Thus another approach of applying LonWorks to traditional measurement and control system is founded.

  2. A fire alarm vision system based on IR image processing

    Microsoft Academic Search

    Won-Ho Kim; Seung-Kyeom Kim; Jong-Ho Lee; Chang-Ho Hyun

    2011-01-01

    This paper presents a fire alarm vision system based on flame detection algorithm of infrared image. The presented flame detection algorithm measures the luminance variation of candidate flame blocks of the IR image and it determines existence of the fire according to the amount of variation of luminance. By using the test images, the simulation of flame detection algorithm was

  3. TSS; A comprehensive, video-based alarm assessment system

    SciTech Connect

    Blum, J.D. (Presearch Inc., Systems and Software Engineering Div., Fairfax, VA (US))

    1991-01-01

    The combination of growing threats and increasing security awareness is driving the design of large and larger perimeter protection systems at nuclear facilities worldwide. This paper reports on the Tactical Security System (TSS) which is a modular, solid-state video system that adds Pre-Alarm Image Recall (PAIR) assessment capabilities to existing fixed-site surveillance systems. PAIR allows guard forces to view video images taken prior to perimeter sensor alarms. The system can be configured to show from 8 to 64 such images for each alarm and can display multiple cameras and multiple zones simultaneous. The TSS hardware architecture can be configured to include capabilities for digital image storage, image transmission, image printing, video loss detection, video motion detection and security force training. The incorporation of all of these video-based functions into one system give guard focuses and integrated workstation for video detection, assessment, documentation and communication. It reduces the number of responses to nuisance alarms and increases confidence in guard force decisions.

  4. Automatic diagnosis of multiple alarms for reactor-control rooms

    SciTech Connect

    Gimmy, K.L.; Nomm, E.

    1981-01-01

    A system has been developed at the Savannah River Plant to help reactor operators respond to multiple alarms in a developing incident situation. The need for such systems has become evident in recent years, particularly after the three Mile Island incident.

  5. Integrated alarm annunciation and entry control systems -- Survey results

    SciTech Connect

    Clever, J.J.; Arakaki, L.H.; Monaco, F.M.; Juarros, L.E.; Quintana, G.R.

    1993-10-01

    This report provides the results and analyses of a detailed survey undertaken in Summer 1993 to address integrated intrusion detection alarm annunciation and entry control system issues. This survey was undertaken as a first attempt toward beginning to answer questions about integrated systems and commercial capabilities to meet or partially meet US Department of Energy (DOE) site needs.

  6. SeaQuest/E906 Shift Alarm System

    NASA Astrophysics Data System (ADS)

    Kitts, Noah

    2014-09-01

    SeaQuest, Fermilab E906, is a fixed target experiment that measures the Drell-Yan cross-section ratio of proton-proton to proton-deuterium collisions in order to extract the sea anti-quark structure of the proton. SeaQuest will extend the measurements made by E866/NuSea with greater precision at higher Bjorken-x. The continuously running experiment is always being monitored. Those on shift must keep track of all of the detector readouts in order to make sure the experiment is running correctly. As an experiment that is still in its early stages of running, an alarm system for people on shift is being created to provide warnings, such as a plot showing a detector's performance is sufficiently different to need attention. This plan involves python scripts that track live data. When the data shows a problem within the experiment, a corresponding alarm ID is sent to the MySQL database which then sets off an alarm. These alarms, which will alert the person on shift through both an audible and visual response, are important for ensuring that issues do not go unnoticed, and to help make sure the experiment is recording good data.

  7. István Mészáros, the unconscious, and false consciousness.

    PubMed

    Rendon, Mario

    2013-06-01

    Hungarian philosopher István Mészáros' more recent work expands our understanding of consciousness in a way that is particularly relevant to psychoanalysis. He underscores the tragedy of consciousness, increasingly alienated from the totality of our social and individual being, and replaced by its false analog. To make sustainable an anachronistic type of vertical social structure, ideologists of false consciousness join arms with those who control society's historically developed means to reproduce itself and its members. This results in the social phenomenon of alienation, whereby actively produced false consciousness creates a correlate individual unconscious. Mészáros' theory seems compatible with the psychoanalytic paradigms developed by Karen Horney and the Neo-Freudians. PMID:23722401

  8. The false-negative Meckel's scan

    SciTech Connect

    Wilton, G.; Froelich, J.W.

    1982-10-01

    A case is presented of a 17-month-old girl who underwent two Meckel's scans with /sup 99m/Tc pertechnetate. The initial study was interpreted as normal while a subsequent study five days later was definitely positive. Surgery immediately following the positive Meckel's scan demonstrated a Meckel's diverticulum containing gastric mucosa without evidence of active hemorrhage. This prompted a review of the literature in reference to false-negative Meckel's scans which revealed a wide variance in the reported incidence of false-negative examinations. Repeat scintigraphy in the face of a strong clinical suspicion after an initial normal study may decrease the indicence of false-negative imaging series.

  9. The role of the superior temporal lobe in auditory false perceptions: A transcranial direct current stimulation study

    PubMed Central

    Moseley, Peter; Fernyhough, Charles; Ellison, Amanda

    2014-01-01

    Neuroimaging has shown that a network of cortical areas, which includes the superior temporal gyrus, is active during auditory verbal hallucinations (AVHs). In the present study, healthy, non-hallucinating participants (N=30) completed an auditory signal detection task, in which participants were required to detect a voice in short bursts of white noise, with the variable of interest being the rate of false auditory verbal perceptions. This paradigm was coupled with transcranial direct current stimulation, a noninvasive brain stimulation technique, to test the involvement of the left posterior superior temporal gyrus in the creation of auditory false perceptions. The results showed that increasing the levels of excitability in this region led to a higher rate of ‘false alarm’ responses than when levels of excitability were decreased, with false alarm responses under a sham stimulation condition lying at a mid-point between anodal and cathodal stimulation conditions. There were also corresponding changes in signal detection parameters. These results are discussed in terms of prominent cognitive neuroscientific theories of AVHs, and potential future directions for research are outlined. PMID:25107678

  10. 20 CFR 356.3 - False claims.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS CIVIL MONETARY PENALTY INFLATION ADJUSTMENT § 356.3 False claims. In the case of penalties assessed under 31 U.S.C. 3729 based on actions...

  11. 20 CFR 356.3 - False claims.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS CIVIL MONETARY PENALTY INFLATION ADJUSTMENT § 356.3 False claims. In the case of penalties assessed under 31 U.S.C. 3729 based on actions...

  12. 20 CFR 356.3 - False claims.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS CIVIL MONETARY PENALTY INFLATION ADJUSTMENT § 356.3 False claims. In the case of penalties assessed under 31 U.S.C. 3729 based on actions...

  13. 20 CFR 356.3 - False claims.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS CIVIL MONETARY PENALTY INFLATION ADJUSTMENT § 356.3 False claims. In the case of penalties assessed under 31 U.S.C. 3729 based on actions...

  14. 20 CFR 356.3 - False claims.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...Benefits RAILROAD RETIREMENT BOARD ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS CIVIL MONETARY PENALTY INFLATION ADJUSTMENT § 356.3 False claims. In the case of penalties assessed under 31 U.S.C. 3729 based on actions...

  15. Hypnotizability, not suggestion, influences false memory development.

    PubMed

    Dasse, Michelle N; Elkins, Gary R; Weaver, Charles A

    2015-01-01

    Hypnotizability influences the development of false memories. In Experiment 1, participants heard a positive or negative suggestion regarding hypnosis and then listened to 8 Deese-Roediger-McDermott (DRM) false memory paradigm lists in a hypnotic state. Neither hypnosis nor prehypnotic suggestion affected memory. Highly hypnotizable participants were more accurate in recall and recognition. In Experiment 2, suggestions were delivered in the form of feedback. Participants heard a positive or negative suggestion about their performance prior to either the encoding or retrieval of 8 DRM lists. Neither accurate nor false memories were affected by the suggestion. Highly hypnotizable individuals recognized fewer critical lures if they received a negative suggestion about their performance. These results highlight the unusual role of hypnotizability in the creation of false memories. PMID:25365130

  16. Can language prediction lead to false memories? 

    E-print Network

    Speed, Laura

    2010-06-30

    The present study sought to investigate the use of prediction during sentence comprehension and whether prediction could lead to false memories for sentences when the ending of a sentence is not properly recovered. ...

  17. 46 CFR 113.27-1 - Engineers' assistance-needed alarm.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Engineers...Engineers' assistance-needed alarm. Each self-propelled ocean, Great Lakes, or coastwise vessel must have a...

  18. 46 CFR 113.27-1 - Engineers' assistance-needed alarm.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...113.27-1 Section 113.27-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Engineers' Assistance-Needed Alarm § 113.27-1...

  19. 46 CFR 113.25-8 - Distribution of general emergency alarm system feeders and branch circuits.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...for each vertical fire zone that has general emergency alarm signal. (e) Each system must have one...not divided into fire zones by main vertical fire bulkheads, the general emergency alarm system must be...

  20. 46 CFR 113.25-8 - Distribution of general emergency alarm system feeders and branch circuits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...for each vertical fire zone that has general emergency alarm signal. (e) Each system must have one...not divided into fire zones by main vertical fire bulkheads, the general emergency alarm system must be...

  1. 46 CFR 113.25-8 - Distribution of general emergency alarm system feeders and branch circuits.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...for each vertical fire zone that has general emergency alarm signal. (e) Each system must have one...not divided into fire zones by main vertical fire bulkheads, the general emergency alarm system must be...

  2. 46 CFR 95.16-45 - Pre-discharge alarms and time delay devices.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Pre-discharge alarms and time delay devices...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Gas Extinguishing Systems, Details § 95.16-45 Pre-discharge alarms and time delay devices. (a) Each system protecting a...

  3. 46 CFR 95.16-45 - Pre-discharge alarms and time delay devices.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Pre-discharge alarms and time delay devices...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Gas Extinguishing Systems, Details § 95.16-45 Pre-discharge alarms and time delay devices. (a) Each system protecting a...

  4. 46 CFR 113.25-8 - Distribution of general emergency alarm system feeders and branch circuits.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...for each vertical fire zone that has general emergency alarm signal. (e) Each system must have one...not divided into fire zones by main vertical fire bulkheads, the general emergency alarm system must be...

  5. 46 CFR 95.16-45 - Pre-discharge alarms and time delay devices.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Pre-discharge alarms and time delay devices...MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT...Gas Extinguishing Systems, Details § 95.16-45 Pre-discharge alarms and time delay devices. (a) Each system protecting a...

  6. 46 CFR 113.25-8 - Distribution of general emergency alarm system feeders and branch circuits.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...for each vertical fire zone that has general emergency alarm signal. (e) Each system must have one...not divided into fire zones by main vertical fire bulkheads, the general emergency alarm system must be...

  7. 76 FR 76327 - Installation of Radiation Alarms for Rooms Housing Neutron Sources

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-07

    ...NUCLEAR REGULATORY COMMISSION...NRC-2011-0251] Installation of Radiation Alarms for Rooms Housing...Neutron Sources AGENCY: Nuclear Regulatory Commission...require installation of radiation alarms for rooms housing...December 2011. For the Nuclear Regulatory...

  8. Smoke Alarm Presence and Performance in U.S. Home Fires

    Microsoft Academic Search

    Marty Ahrens

    2011-01-01

    The vast majority of U.S. homes have at least one smoke alarm. For smoke alarms to be effective, they must have a functional\\u000a power source, be close enough to the smoke to activate, they must be heard, and occupants must take appropriate action. In\\u000a homes with smoke alarms and fires considered large enough, the alarms operated 83% of the time.

  9. Mitigating tourism seasonality

    Microsoft Academic Search

    2004-01-01

    Seasonality is one of the most problematic but least understood aspects of tourism. Many destinations are suffering from this phenomenon every year, yet limited efforts have been made to overcome the troublesome issue. This research proposed an approach to obtaining quantitative solutions which can ultimately assist marketers in mitigating seasonal effects. The study applied financial portfolio theory, widely used in

  10. RFI Mitigation Steve Ellingson

    E-print Network

    Ellingson, Steven W.

    RFI Mitigation Steve Ellingson Virginia Polytechnic Institute & State University "Frontiers of Astronomy with the World's Largest Radio Telescope" Meeting September 13, 2007 #12;RFI Problems · Ourselves. Time Series Matched Filter Output Rank Detector Pulse Detector Top: RFI mit off Middle: Nulling Bottom

  11. Online root-cause analysis of alarms in discrete Bayesian networks with known structures

    E-print Network

    Wang, Jiandong

    Online root-cause analysis of alarms in discrete Bayesian networks with known structures Jiandong to analyze the root cause of alarms arisen in industrial process variables. The relation among alarm one child node exits so that its abnormal state is caused by one or multiple parent nodes. The root

  12. Automated troubleshooting of mobile networks based on alarm and performance data using bayesian networks

    Microsoft Academic Search

    D. Tikunov; T. Nishimura

    2007-01-01

    In this paper, we present an automated troubleshooting method for mobile networks based on alarm and performance data using two Bayesian Networks. The method provides online, reactive diagnosis of malfunction alarms using the Bayesian Network with alarm correlation and diagnosis of cells' bad performance using another Bayesian network. The proposed method and models were used in a trial with history

  13. Multisensor fire detection algorithm for ship fire alarm system using neural fuzzy network

    Microsoft Academic Search

    Wang Xihuai; Xiao Jianmei; Bao Minzhong

    2000-01-01

    Multi-sensor fire detection algorithm (MSFDA) are one of the current important developments in ship fire detection technology. Old ship fire alarm systems often use single sensor and are based on simple logic judgement. To make a less erroneous alarm, a new MSFDA is developed based on the fuzzy inference system and neural network. The multi-grade alarm of ship fire is

  14. 46 CFR 27.201 - What are the requirements for general alarms on towing vessels?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...requirements for general alarms on towing vessels... TOWING VESSELS Fire-Protection Measures...requirements for general alarms on towing vessels...public-address (PA) system or other means of...instead of a general alarm, if the system— (1) Is...

  15. 46 CFR 27.201 - What are the requirements for general alarms on towing vessels?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...requirements for general alarms on towing vessels... TOWING VESSELS Fire-Protection Measures...requirements for general alarms on towing vessels...public-address (PA) system or other means of...instead of a general alarm, if the system— (1) Is...

  16. Family guard against theft and alarm system based on GSM Modem

    Microsoft Academic Search

    Zhou Yu; Zhisong Hou; Gaoli Zhao; Xiangang Zuo

    2011-01-01

    The System is made up of MCU and GSM Modem. It will display the alarm content in Chinese directly at your mobile screen, and it recurs to the most reliable GSM mobile network. The system adopted initiative infrared sensor to detect, and it turned the traditional alarm net and alarm windows to immateriality. Besides, the system equipped the smog sensor

  17. Design of large space fire alarm controller based on intelligent video surveillance

    Microsoft Academic Search

    Shuangye Chen; Chen Luo; Yawei Chen; Weijing Zhang; Jie Hou; Jiaru Qian

    2011-01-01

    In this paper, the ARM embedded fire alarm controller is designed and applied to the fire intelligent video surveillance system of large space. Based on the Modbus communication protocol, the fire alarm controller receive the information from video surveillance platform, sending out alarm signal of voice and light when fire happened, and then the fire sprinkler system are controlled to

  18. Project 93L-EWL-097, fire alarm system improvements, 300 Area

    SciTech Connect

    Scott, M.V.

    1995-01-01

    This document contains the Acceptance Test Procedure (ATP) which will demonstrate that the modifications to the Fire Protection systems in the 338 Building function as intended. The ATP will test the fire alarm control panel, flow alarm pressure switch, post indicator valve tamper switch, heat detectors, flow switches, and fire alarm signaling devices.

  19. Design and Implementation of Automatic Fire Alarm System based on Wireless Sensor Networks

    Microsoft Academic Search

    Lei Zhang; Gaofeng Wang

    2009-01-01

    Abstract—Fire disaster is a ,great threat to lives and property. Automatic fire alarm system provides real-time surveillance, monitoring and automatic alarm. It sends early alarm when the fire occurs and helps to reduce the fire damage. Wireless sensor network has become the most important technology in environmental monitoring and home or factory automation in recent years. In this paper, anautomatic

  20. Effects of a fire alarm strobe light on fecal corticosterone metabolite concentrations in mice

    Microsoft Academic Search

    Jerald Silverman; Denice Godfrey

    2009-01-01

    The type and location of fire alarms are important considerations in animal facility design. The Guide for the Care and Use of Laboratory Animals recommends minimizing animal exposure to such alarms. Nevertheless, it is often necessary to maintain fire alarms within animal housing or procedural areas. The authors exposed male mice to the flashing strobe light component of a standard

  1. 46 CFR 27.201 - What are the requirements for general alarms on towing vessels?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...requirements for general alarms on towing vessels... TOWING VESSELS Fire-Protection Measures...requirements for general alarms on towing vessels...public-address (PA) system or other means of...instead of a general alarm, if the system— (1) Is...

  2. Fire alarm bell audibility in a housing block in Hong Kong

    Microsoft Academic Search

    C. M. Mak; Christopher Y H Chao

    1998-01-01

    A case study on fire alarm bell audibility in a government housing block in Hong Kong is presented. A sound survey included sound pressure level measurement, and a questionnairehas been administered. The results highlight a typical problem in the audibility of fire alarm bell in residential buildings in Hong Kong. Improvement to the fire alarm bell system is suggested. A

  3. Social cost benefit analysis of commercial and residential burglar and fire alarms

    Microsoft Academic Search

    Simon Hakim; Yochanan Shachmurove

    1996-01-01

    This paper evaluates the net benefits yielded by residential and commercial burglar and fire alarm systems. The policy issue addressed is whether or not alarms should be encouraged by local police departments as a crime prevention measure. It is shown that the total benefits of burglar alarm ownership outweigh the total costs for the combined and separate commercial and residential

  4. 46 CFR 27.201 - What are the requirements for general alarms on towing vessels?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...requirements for general alarms on towing vessels... TOWING VESSELS Fire-Protection Measures...requirements for general alarms on towing vessels...public-address (PA) system or other means of...instead of a general alarm, if the system— (1) Is...

  5. 46 CFR 27.201 - What are the requirements for general alarms on towing vessels?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...requirements for general alarms on towing vessels... TOWING VESSELS Fire-Protection Measures...requirements for general alarms on towing vessels...public-address (PA) system or other means of...instead of a general alarm, if the system— (1) Is...

  6. Autonomous mining for alarm correlation patterns based on time-shift similarity clustering in manufacturing system

    Microsoft Academic Search

    Yan Chen; Jay Lee

    2011-01-01

    Current alarm systems employed in manufacturing applications are ambiguous in terms of indicating the root causes of process disturbances, which causes many difficulties for decision making. As manufacturing systems increase in complexity and scale, the continued reliance on human operators for alarm information management is impossible. A computer- aided information management system would increase analytical capability for alarm analysis. To

  7. A Next Generation Alarm Processing Algorithm Incorporating Recommendations and Decisions on Wide Area Control

    Microsoft Academic Search

    Elias Kyriakides; Jonathan W. Stahlhut; Gerald T. Heydt

    2007-01-01

    The number of alarms for a typical power system event may be overwhelming to power system operators and may delay the operator from taking appropriate corrective action. Worldwide, a number of alarm processing techniques are used to reduce the number of alarms that the operator 'sees', so as to better comprehend the situation at hand and make accurate decisions faster.

  8. RFI Mitigation Project S. Ellingson

    E-print Network

    Ellingson, Steven W.

    RFI Mitigation Project S. Ellingson Dec 18, 2013 #12;Agenda Background Ultimate goals Partial implementation & experiment Consider next steps #12;Background Original idea: Real-time RFI mitigation instrument-related issues, but no particular need for explicit RFI mitigation Two ideas going forward

  9. wind engineering & natural disaster mitigation

    E-print Network

    Denham, Graham

    wind engineering & natural disaster mitigation #12;wind engineering & natural disaster mitigation Investment WindEEE Dome at Advanced Manufacturing Park $31million Insurance Research Lab for Better Homes $8million Advanced Facility for Avian Research $9million #12;wind engineering & natural disaster mitigation

  10. The double slit experiment and the time reversed fire alarm

    NASA Astrophysics Data System (ADS)

    Halabi, Tarek

    2011-03-01

    When both slits of the double slit experiment are open, closing one paradoxically increases the detection rate at some points on the detection screen. Feynman famously warned that temptation to "understand" such a puzzling feature only draws us into blind alleys. Nevertheless, we gain insight into this feature by drawing an analogy between the double slit experiment and a time reversed fire alarm. Much as closing the slit increases probability of a future detection, ruling out fire drill scenarios, having heard the fire alarm, increases probability of a past fire (using Bayesian inference). Classically, Bayesian inference is associated with computing probabilities of past events. We therefore identify this feature of the double slit experiment with a time reversed thermodynamic arrow. We believe that much of the enigma of quantum mechanics is simply due to some variation of time's arrow.

  11. Dialects in the alarm calls of prairie dogs

    Microsoft Academic Search

    C. N. Slobodchikoff; R. Coast

    1980-01-01

    1.The alarm calls of the Gunnison's prairie dog, Cynomys gunnisoni zuniensis, have differentiated into local dialects.2.Call characteristics show that, within a given dialect, the number of syllables, the length of the syllables, and the interval length between syllables are weakly correlated with one another. The number of syllables, however, is strongly correlated with the total length of the call.3.Both the

  12. Study on ARM-based fire alarm networking unit

    Microsoft Academic Search

    Wang Huaixiu; Wang Dong; Jiang Zhijian

    2011-01-01

    An ARM-based fire alarm unit was presented in the paper. The unit hardware was composed of temperature, smog sensors, LPC2478 and GPRS transmission. The unit software was composed of \\/lC\\/OS - II embedded operation system, data acquisition, the fire identification algorithms and transmission programs. The unit was able to monitor and analyze the room's temperature and smog, and then the

  13. Fluorescence based optical fibre fire alarm system [for aeroengine application

    Microsoft Academic Search

    T. Sun; K. T. V. Grattan; W. M. Sun

    2002-01-01

    A fluorescence-based optical fibre fire alarm system, which offers the advantages of light weight and relatively low cost, has been discussed to address the specifications required for aeroengine fire detection. A temperature excursion as low as 50-100°C has been detected and current spatial resolution achieved is ?20 cm. Lengths of 1.2 m of Er & Tm doped fibres have been

  14. ZoneAlarm Free Firewall 9.2

    NSDL National Science Digital Library

    2010-01-01

    This latest version of ZoneAlarm Free Firewall 9.2 will help keep users' computers free from phishing devices and other such pesky intruders. The application takes about 5 minutes to setup, and it can now also stop program spoofing, which is when a malicious program pretends to be a good one. The program also has an extensive interactive help feature, which can be useful for new users. This version is compatible with computers running Windows XP, Vista, and 7.

  15. Research and application of highway tunnel fire alarm system based on fiber Bragg grating sensor technology

    NASA Astrophysics Data System (ADS)

    Zhou, Ciming; Chen, Liuyong; Jiang, Desheng; He, Jun; Zhang, Shaoyun

    2007-01-01

    A new fire alarm system based on FBG sensor has been investigated to determine its potential in fire alarm applications for highway tunnel. The system has been experimentally tested and some of its application are reported. The results show that the new fire alarm system is capable of fixed temperature alarm and rate-of-rise alarm promptly; the fire place can easily determined according to the location of maximum temperature; the temperature distribution and the rule of temperature development in the tunnel can be obtained at the same time.

  16. Loop transformations to prevent false sharing

    SciTech Connect

    Granston, E.D. [Rice Univ., Houston, TX (United States); Montaut, T.; Bodin, F. [IRISA, Rennes (France)

    1995-08-01

    To date, page management in shared virtual memory (SVM) systems has been primarily the responsibility of the run-time system. However, there are some problems that are difficult to resolve efficiently at run time. Chief among these is false sharing. In this paper, a loop transformation theory is developed for identifying and eliminating potential sources of multiple-writer false sharing and other sources of page migration resulting from regular references in numerical applications. Loop nests of one and two dimensions (before blocking) with single-level, DOALL-style parallelism are covered. The potential of these transformations is demonstrated experimentally.

  17. Masters Thesis- Criticality Alarm System Design Guide with Accompanying Alarm System Development for the Radioisotope Production Laboratory in Richland, Washington

    SciTech Connect

    Greenfield, Bryce A.

    2009-12-20

    A detailed instructional manual was created to guide criticality safety engineers through the process of designing a criticality alarm system (CAS) for Department of Energy (DOE) hazard class 1 and 2 facilities. Regulatory and technical requirements were both addressed. A list of design tasks and technical subtasks are thoroughly analyzed to provide concise direction for how to complete the analysis. An example of the application of the design methodology, the Criticality Alarm System developed for the Radioisotope Production Laboratory (RPL) of Richland, Washington is also included. The analysis for RPL utilizes the Monte Carlo code MCNP5 for establishing detector coverage in the facility. Significant improvements to the existing CAS were made that increase the reliability, transparency, and coverage of the system.

  18. Climate Change & Mitigation Options

    NSDL National Science Digital Library

    Nummedal, Dag

    The Advanced Technology Environmental and Energy Center (ATEEC) provides this presentation from Dag Nummedal of the Colorado Energy Research Institute on climate change and mitigation options. This presentation is intended for users with a background knowledge on the topic and includes graphical representations of important data. The document may be downloaded in PDF file format. Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item.

  19. Vendor cited for false PFC savings claim

    SciTech Connect

    Greenstein, I.

    1983-08-29

    A Cynex power factor controller (PFC) vendor claiming a 60% saving was cited by the Better Business Bureau for false advertising after a user survey revealed that savings were only 20% at best. The company plans no future advertising claims, although it insists that 60% savings are possible. The inventor disagrees. (DCK)

  20. Analysis of False Starts in Spontaneous Speech.

    ERIC Educational Resources Information Center

    O'Shaughnessy, Douglas

    A primary difference between spontaneous speech and read speech concerns the use of false starts, where a speaker interrupts the flow of speech to restart his or her utterance. A study examined the acoustic aspects of such restarts in a widely-used speech database, examining approximately 1000 utterances, about 10% of which contained a restart.…