Science.gov

Sample records for alarm system feeders

  1. 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.

  2. Alarm Notification System

    1995-03-12

    AN/EMS, the Alarm Notification Energy Management System, is used to monitor digital sensors in PETC buildings and to notify the safety/security operator by both a video and an audio system when a possibly hazardous condition arises.

  3. FIRE ALARM SYSTEM OUTDATED.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…

  4. IMPEDANCE ALARM SYSTEM

    DOEpatents

    Cowen, R.G.

    1959-09-29

    A description is given of electric protective systems and burglar alarm systems of the capacitance type in which the approach of an intruder at a place to be protected varies the capacitance in an electric circuit and the change is thereafter communicated to a remote point to actuate an alarm. According to the invention, an astable transitor multi-vibrator has the amplitude at its output voltage controlled by a change in the sensing capacitance. The sensing capacitance is effectively connected between collector and base of one stage of the multivibrator circuit through the detector-to-monitor line. The output of the detector is a small d-c voltage across the detector-to-monitor line. This d- c voltage is amplified and monitored at the other end of the line, where an appropriate alarm is actuated if a sudden change in the voltage occurs. The present system has a high degree of sensitivity and is very difficult to defeat by known techniques.

  5. Functional relationship-based alarm processing system

    DOEpatents

    Corsberg, Daniel R.

    1989-01-01

    A functional relationship-based alarm processing system and method analyzes each alarm as it is activated and determines its relative importance with other currently activated alarms and signals in accordance with the functional relationships that the newly activated alarm has with other currently activated alarms. Once the initial level of importance of the alarm has been determined, that alarm is again evaluated if another related alarm is activated or deactivated. Thus, each alarm's importance is continuously updated as the state of the process changes during a scenario. Four hierarchical relationships are defined by this alarm filtering methodology: (1) level precursor (usually occurs when there are two alarm settings on the same parameter); (2) direct precursor (based on causal factors between two alarms); (3) required action (system response or action expected within a specified time following activation of an alarm or combination of alarms and process signals); and (4) blocking condition (alarms that are normally expected and are not considered important). The alarm processing system and method is sensitive to the dynamic nature of the process being monitored and is capable of changing the relative importance of each alarm as necessary.

  6. Functional relationship-based alarm processing system

    DOEpatents

    Corsberg, D.R.

    1988-04-22

    A functional relationship-based alarm processing system and method analyzes each alarm as it is activated and determines its relative importance with other currently activated alarms and signals in accordance with the functional relationships that the newly activated alarm has with other currently activated alarms. Once the initial level of importance of the alarm has been determined, that alarm is again evaluated if another related alarm is activated or deactivated. Thus, each alarm's importance is continuously updated as the state of the process changes during a scenario. Four hierarchical relationships are defined by this alarm filtering methodology: (1) level precursor (usually occurs when there are two alarm settings on the same parameter); (2) direct precursor (based on causal factors between two alarms); (3) required action (system response or action expected within a specified time following activation of an alarm or combination of alarms and process signals); and (4) blocking condition (alarms that are normally expected and are not considered important). The alarm processing system and method is sensitive to the dynamic nature of the process being monitored and is capable of changing the relative importance of each alarm as necessary. 12 figs.

  7. Intensive care alarm system

    NASA Technical Reports Server (NTRS)

    Christensen, J. L.; Herbert, A. L.

    1973-01-01

    Inductive loop has been added to commercially available call system fitted with earphone receiver. System transmits high frequency signals to nurse's receiver to announce patient's need for help without disturbing others.

  8. Personal Alarm System

    NASA Technical Reports Server (NTRS)

    1977-01-01

    Trouble in the classroom is an unpleasant fact of modern life. Space technology can't stop the trouble from occurring, but it can prevent it from spreading. In recognition of this, NASA and the Sacramento, Cal. Unified School District developed a personal security system based on space telemetry technology. The first application was for schools, but the simplicity and reliability of the system has made it more widely applicable. The heart of the system is an ultrasonic pen-size transmitter. It can be used by prison guards, teachers, or others such as the handicapped and the elderly.

  9. SUBSURFACE VISUAL ALARM SYSTEM ANALYSIS

    SciTech Connect

    D.W. Markman

    2001-08-06

    The ''Subsurface Fire Hazard Analysis'' (CRWMS M&O 1998, page 61), and the document, ''Title III Evaluation Report for the Surface and Subsurface Communication System'', (CRWMS M&O 1999a, pages 21 and 23), both indicate the installed communication system is adequate to support Exploratory Studies Facility (ESF) activities with the exception of the mine phone system for emergency notification purposes. They recommend the installation of a visual alarm system to supplement the page/party phone system The purpose of this analysis is to identify data communication highway design approaches, and provide justification for the selected or recommended alternatives for the data communication of the subsurface visual alarm system. This analysis is being prepared to document a basis for the design selection of the data communication method. This analysis will briefly describe existing data or voice communication or monitoring systems within the ESF, and look at how these may be revised or adapted to support the needed data highway of the subsurface visual alarm. system. The existing PLC communication system installed in subsurface is providing data communication for alcove No.5 ventilation fans, south portal ventilation fans, bulkhead doors and generator monitoring system. It is given that the data communication of the subsurface visual alarm system will be a digital based system. It is also given that it is most feasible to take advantage of existing systems and equipment and not consider an entirely new data communication system design and installation. The scope and primary objectives of this analysis are to: (1) Briefly review and describe existing available data communication highways or systems within the ESF. (2) Examine technical characteristics of an existing system to disqualify a design alternative is paramount in minimizing the number of and depth of a system review. (3) Apply general engineering design practices or criteria such as relative cost, and degree of

  10. The Best Ever Alarm System Toolkit

    SciTech Connect

    Kasemir, Kay; Chen, Xihui; Danilova, Katia

    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.

  11. Video systems for alarm assessment

    SciTech Connect

    Greenwoll, D.A.; Matter, J.C. ); Ebel, P.E. )

    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.

  12. 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.

  13. Advanced alarm systems: Display and processing issues

    SciTech Connect

    O`Hara, J.M.; Wachtel, J.; Perensky, J.

    1995-05-01

    This paper describes a research program sponsored by the US Nuclear Regulatory Commission to address the human factors engineering (HFE) deficiencies associated with nuclear power plant alarm systems. The overall objective of the study is to develop HFE review guidance for alarm systems. In support of this objective, human performance issues needing additional research were identified. Among the important issues were alarm processing strategies and alarm display techniques. This paper will discuss these issues and briefly describe our current research plan to address them.

  14. An improved criticality alarm system

    SciTech Connect

    Tyree, W.H.; Gilpin, H.E.; Balmer, D.K.; Vennitti, D.A.

    1991-12-31

    The Rocky Flats Plant near Golden, Colorado is the primary facility for the production of plutonium components used in the US arsenal of nuclear weapons. It is operated by EG&G under contract to the US Department of Energy (DOE). There are ten production buildings on plant site with neutron based criticality alarm systems. These systems have been in operation for the past seventeen years. Changes in the interpretation of A.N.S.I. standards and DOE orders have precipitated an evaluation of detector sensitivity and placement criteria. As a result of this evaluation, improvements in detector design and calibration have improved detector sensitivity by a factor of six. Testing performed on the design defined a minimum sensitivity as required by A.N.S.I. 8.3 and provided information for saturation and survivability for a fission event of up to 1 {times} 10{sup 17} fissions in 80 microseconds. A rigorous testing and calibration program has been developed and is in place. Neutron sensitivity is certified at a nearby reactor which is traceable to N.I.S.T.. 4 refs.

  15. 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.

  16. 46 CFR 113.43-3 - Alarm system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Alarm system. 113.43-3 Section 113.43-3 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Steering Failure Alarm Systems § 113.43-3 Alarm system. (a) Each vessel must have a steering failure alarm system that actuates...

  17. Development of medical equipment alarm monitoring system.

    PubMed

    Yamashita, Yoshinori; Ogaito, Tatoku; Kasamatsu, Shingo

    2013-01-01

    In a hospital, we use a large number of medical equipment. In these use, I support the safe use by the alarm such as errors from medical equipment. There is the instrument notifying of alarm in communication, but there is the instrument by a sound and the light. For the medical safety management, confirmation of the alarm is important. We thought that stability was improved by integrating alarm from the instrument of the different type. Therefore, we thought that we integrated alarm from medical equipment. We decided to transmit an alarm signal from medical equipment by adding radio module program unit. The type of the radio used IEEE 802.15.4 (ZigBee) at a point of view of low power, International Standard, simple radio equipment. This system deals with only alarm information from medical equipment and does not handle the data. However, we understood that we were helpful very much even if it was only alarm information. We were able to in this way reduce the number of incidents. PMID:23920969

  18. 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.

  19. 46 CFR 161.002-12 - Manual fire alarm systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    .... (a) General. A manual fire alarm system shall consist of a power supply, a control unit on which are... the control unit and terminating at manual fire alarm boxes. Power failure alarm devices may be... alarm system control unit. The manual fire alarm system control unit shall be as specified for...

  20. HYBRID ALARM SYSTEMS: COMBINING SPATIAL ALARMS AND ALARM LISTS FOR OPTIMIZED CONTROL ROOM OPERATION

    SciTech Connect

    Ronald L. Boring; J.J. Persensky

    2012-07-01

    The US Department of Energy (DOE) is sponsoring research, development, and deployment on Light Water Reactor Sustainability (LWRS), in which the Idaho National Laboratory (INL) is working closely with nuclear utilities to develop technologies and solutions to help ensure the safe operational life extension of current nuclear power plants. One of the main areas of focus is control room modernization. Within control room modernization, alarm system upgrades present opportunities to meet the broader goals of the LWRS project in demonstrating the use and safety of the advanced instrumentation and control (I&C) technologies and the short-term and longer term objectives of the plant. In this paper, we review approaches for and human factors issues behind upgrading alarms in the main control room of nuclear power plants.

  1. Automated Information System (AIS) Alarm System

    SciTech Connect

    Hunteman, W.

    1997-05-01

    The Automated Information Alarm System is a joint effort between Los Alamos National Laboratory, Lawrence Livermore National Laboratory, and Sandia National Laboratory to demonstrate and implement, on a small-to-medium sized local area network, an automated system that detects and automatically responds to attacks that use readily available tools and methodologies. The Alarm System will sense or detect, assess, and respond to suspicious activities that may be detrimental to information on the network or to continued operation of the network. The responses will allow stopping, isolating, or ejecting the suspicious activities. The number of sensors, the sensitivity of the sensors, the assessment criteria, and the desired responses may be set by the using organization to meet their local security policies.

  2. Development of Advanced Alarm System for SMART

    SciTech Connect

    Jang, Gwi-sook; Seoung, Duk-hyun; Suh, Sang-moon; Lee, Jong-bok; Park, Geun-ok; Koo, In-soo

    2004-07-01

    A SMART-Alarm System (SMART-AS) is a new system being developed as part of the SMART (System-integrated Modular Advanced Reactor) project. The SMART-AS employs modern digital technology to implement the alarm functions of the SMART. The use of modern digital technology can provide advanced alarm processing in which new algorithms such as a signal validation, advanced alarm processing logic and other features are applied to improve the control room man-machine interfaces. This paper will describe the design process of the SMART-AS, improving the system reliability and availability using the reliability prediction tool, design strategies regarding the human performance topics associated with a computer-based SMART-AS and the results of the performance analysis using a prototype of the SMART-AS. (authors)

  3. Alarm Systems: Library Confounds Criminal Capers.

    ERIC Educational Resources Information Center

    Gjettum, Pamela

    1978-01-01

    Tells the story of a small town library faced with the problem of preventing nuisance burglaries of the type becoming more and more common. The problems of selecting the right type of alarm system are discussed. (JPF)

  4. 46 CFR 113.20-1 - Sprinkler alarm system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Sprinkler alarm system. 113.20-1 Section 113.20-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Automatic Sprinkler Systems § 113.20-1 Sprinkler alarm system. Each sprinkler alarm system, including annunciator,...

  5. 46 CFR 113.43-3 - Alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Alarm system. 113.43-3 Section 113.43-3 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Steering Failure Alarm Systems § 113.43-3 Alarm system. (a) Each vessel must have...

  6. 46 CFR 113.43-3 - Alarm system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Alarm system. 113.43-3 Section 113.43-3 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Steering Failure Alarm Systems § 113.43-3 Alarm system. (a) Each vessel must have...

  7. 46 CFR 113.43-3 - Alarm system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Alarm system. 113.43-3 Section 113.43-3 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Steering Failure Alarm Systems § 113.43-3 Alarm system. (a) Each vessel must have...

  8. 46 CFR 113.43-3 - Alarm system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Alarm system. 113.43-3 Section 113.43-3 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Steering Failure Alarm Systems § 113.43-3 Alarm system. (a) Each vessel must have...

  9. 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

  10. 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…

  11. Nuclear power plant alarm systems: Problems and issues

    SciTech Connect

    O'Hara, J.M.; Brown, W.S.

    1991-01-01

    Despite the incorporation of advanced technology into nuclear power plant alarm systems, human factors problems remain. This paper identifies to be addressed in order to allow advanced technology to be used effectively in the design of nuclear power plant alarm systems. The operator's use and processing of alarm system information will be considered. Based upon a review of alarm system research, issues related to general system design, alarm processing, display and control are discussed. It is concluded that the design of effective alarm systems depends on an understanding of the information processing capabilities and limitations of the operator. 39 refs.

  12. 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.

  13. Alarm Management System for the D/3 Distributed Control System

    1997-03-19

    As industrial processes continue to grow in size and complexity, the Distrubuted Control Systems that automate and monitor these processes expand in a like manner. This increase in control system complexity has resulted in ever increasing numbers of alarms presented to the operator. The challenge for today's control system designer is to find innovative ways to present alarm information to the operator such that despite the large number of alarms, the operator is able tomore » quickly assess the status of the plant and immediately respond to the most critical alarms in a timely manner. This software package, designed and developed for the Savannah River Site Replacement High Level Waste Evaporator/Waste Removal Distributed Control System installed on the H-Area Tank Farm, provides an alarm system which utilizes the annunciator (SKID) panel as a means of statusing the plant and providing single keystroke access to the display on which an alarm resides.« less

  14. Alarm Management System for the D/3 Distributed Control System

    SciTech Connect

    McEver, M.

    1997-03-19

    As industrial processes continue to grow in size and complexity, the Distrubuted Control Systems that automate and monitor these processes expand in a like manner. This increase in control system complexity has resulted in ever increasing numbers of alarms presented to the operator. The challenge for today's control system designer is to find innovative ways to present alarm information to the operator such that despite the large number of alarms, the operator is able to quickly assess the status of the plant and immediately respond to the most critical alarms in a timely manner. This software package, designed and developed for the Savannah River Site Replacement High Level Waste Evaporator/Waste Removal Distributed Control System installed on the H-Area Tank Farm, provides an alarm system which utilizes the annunciator (SKID) panel as a means of statusing the plant and providing single keystroke access to the display on which an alarm resides.

  15. 46 CFR 113.20-1 - Sprinkler alarm system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Sprinkler alarm system. 113.20-1 Section 113.20-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Automatic Sprinkler Systems § 113.20-1 Sprinkler alarm system....

  16. 46 CFR 113.20-1 - Sprinkler alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Sprinkler alarm system. 113.20-1 Section 113.20-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Automatic Sprinkler Systems § 113.20-1 Sprinkler alarm system....

  17. 46 CFR 113.20-1 - Sprinkler alarm system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Sprinkler alarm system. 113.20-1 Section 113.20-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Automatic Sprinkler Systems § 113.20-1 Sprinkler alarm system....

  18. 46 CFR 113.20-1 - Sprinkler alarm system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Sprinkler alarm system. 113.20-1 Section 113.20-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT Automatic Sprinkler Systems § 113.20-1 Sprinkler alarm system....

  19. 46 CFR 161.002-12 - Manual fire alarm systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 6 2013-10-01 2013-10-01 false Manual fire alarm systems. 161.002-12 Section 161.002-12...: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Fire-Protective Systems § 161.002-12 Manual fire alarm systems. (a) General. A manual fire alarm system shall consist of a power supply, a control unit on which...

  20. 46 CFR 161.002-12 - Manual fire alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 6 2010-10-01 2010-10-01 false Manual fire alarm systems. 161.002-12 Section 161.002-12...: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Fire-Protective Systems § 161.002-12 Manual fire alarm systems. (a) General. A manual fire alarm system shall consist of a power supply, a control unit on which...

  1. 46 CFR 76.05-5 - Manual alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Manual alarm system. 76.05-5 Section 76.05-5 Shipping... Fire Detecting and Extinguishing Equipment, Where Required § 76.05-5 Manual alarm system. (a) An approved manual alarm system shall be installed in all areas, other than the main machinery spaces,...

  2. 30 CFR 57.4360 - Underground alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Underground alarm systems. 57.4360 Section 57... MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINES Fire Prevention and Control Firefighting Procedures/alarms/drills § 57.4360 Underground alarm systems. (a) Fire...

  3. Alarm system for a nuclear control complex

    DOEpatents

    Scarola, Kenneth; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    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.

  4. Design of anti-burglar alarm systems

    NASA Astrophysics Data System (ADS)

    Şchiopu, Paul; Costea, Aurelian

    2015-02-01

    Security, as an important element that defines the quality of a system, represents the capacity of a system to preserve his own functional characteristics under pressure of external disruptive agents capable to represent danger for the system, for the environment of the system, and for the life of people inside the defined risk zone. The main goal of security is system stability. With ever new ideas, technology, procedures, actions and specialized institutions, integrated security services offer protection, surveillance and optimum conditions for system to function and to be used properly. Therefore, security represents the main quality parameter of all systems and processes, without it efficiency was not possible. Keyword list: Security; Anti-Burglar Alarm

  5. Semiautomatic cold wire feeder systems increase GTA productivity

    SciTech Connect

    Richardson, M. )

    1995-01-01

    Often, the focus of attempts to increase GTA welding productivity is on studies to determine if justification exists for additional workstations, or for the investment in new fully automated dedicated welding fixtures. Often less costly and simpler solutions can bring about the necessary means to increase production rates and reduce operating costs. For short-run production applications, it is almost impossible to justify the substantial investment in a dedicated automatic fixture. Now, low cost GTA cold wire feeder systems are within the reach of even small shops. The paper views how cold wire equipment has been applied in several GTAW applications to improve results.

  6. 46 CFR 58.25-25 - Indicating and alarm systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 2 2011-10-01 2011-10-01 false Indicating and alarm systems. 58.25-25 Section 58.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS Steering Gear § 58.25-25 Indicating and alarm systems. (a) Indication of the rudder angle must be provided both...

  7. 46 CFR 58.25-25 - Indicating and alarm systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 2 2013-10-01 2013-10-01 false Indicating and alarm systems. 58.25-25 Section 58.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS Steering Gear § 58.25-25 Indicating and alarm systems. (a) Indication of the rudder angle must be provided both...

  8. 46 CFR 183.550 - General alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false General alarm systems. 183.550 Section 183.550 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) ELECTRICAL INSTALLATION Miscellaneous Systems and Requirements § 183.550 General alarm systems. All...

  9. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 5 2011-07-01 2011-07-01 false Employee alarm systems. 1910.165 Section 1910.165 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND HEALTH STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee alarm systems. (a) Scope...

  10. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 5 2010-07-01 2010-07-01 false Employee alarm systems. 1910.165 Section 1910.165 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND HEALTH STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee alarm systems. (a) Scope...

  11. From alarm systems to smart houses.

    PubMed

    Vlaskamp, F J

    1992-01-01

    The percentage of senior citizens in the Netherlands will rise in coming years. The expected percentage for the year 2010 of persons over age 65 in the total population is 15%. More persons over age 65 than ever before will continue to live in their own environment. Emergency response systems (ERS) can support independent living. The most common type of organization distributing ERS is a small, partly subsidized local alarm organization run by a social welfare office for the elderly. Government subsidy has been reduced in recent years which has motivated small organizations to join together into larger regional organizations in order to get a more solid financial base. On the other hand new semi-commercial and commercial organizations have come into being. These developments are part of the growing importance of home care, leading to more medical applications of ERS. User satisfaction with ERS is high. Portable triggers can enhance the effectiveness of the system. However, many users do not wear the portable trigger when feeling well. Future technical developments will result in multifunctionality of ERS-devices. In the long term the hardware of today will be integrated in a multimedia home terminal replacing the telephone. The portable trigger will remain the only specific hardware at home for ERS. PMID:10126436

  12. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... OCCUPATIONAL SAFETY AND HEALTH STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee... alarms required on various fixed extinguishing systems or to supervisory alarms on fire suppression... in this section that pertain to maintenance, testing and inspection shall apply to all local...

  13. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... OCCUPATIONAL SAFETY AND HEALTH STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee... alarms required on various fixed extinguishing systems or to supervisory alarms on fire suppression... in this section that pertain to maintenance, testing and inspection shall apply to all local...

  14. 29 CFR 1910.165 - Employee alarm systems.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... OCCUPATIONAL SAFETY AND HEALTH STANDARDS Fire Protection Other Fire Protection Systems § 1910.165 Employee... alarms required on various fixed extinguishing systems or to supervisory alarms on fire suppression... in this section that pertain to maintenance, testing and inspection shall apply to all local...

  15. 46 CFR 154.1842 - Cargo system: Controls and alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 5 2011-10-01 2011-10-01 false Cargo system: Controls and alarms. 154.1842 Section 154.1842 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Operations § 154.1842 Cargo system: Controls and alarms. The master...

  16. 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

  17. 33 CFR 127.201 - Sensing and alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... systems. (a) Fixed sensors must have audio and visual alarms in the control room and audio alarms nearby. (b) Fixed sensors that continuously monitor for LNG vapors must— (1) Be in each enclosed area where vapor or gas may accumulate; and (2) Meet Section 9-4 of NFPA 59A. (c) Fixed sensors that...

  18. 33 CFR 127.201 - Sensing and alarm systems.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... systems. (a) Fixed sensors must have audio and visual alarms in the control room and audio alarms nearby. (b) Fixed sensors that continuously monitor for LNG vapors must— (1) Be in each enclosed area where vapor or gas may accumulate; and (2) Meet Section 9-4 of NFPA 59A. (c) Fixed sensors that...

  19. 33 CFR 127.201 - Sensing and alarm systems.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... systems. (a) Fixed sensors must have audio and visual alarms in the control room and audio alarms nearby. (b) Fixed sensors that continuously monitor for LNG vapors must— (1) Be in each enclosed area where vapor or gas may accumulate; and (2) Meet Section 9-4 of NFPA 59A. (c) Fixed sensors that...

  20. 33 CFR 127.201 - Sensing and alarm systems.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... systems. (a) Fixed sensors must have audio and visual alarms in the control room and audio alarms nearby. (b) Fixed sensors that continuously monitor for LNG vapors must— (1) Be in each enclosed area where vapor or gas may accumulate; and (2) Meet Section 9-4 of NFPA 59A. (c) Fixed sensors that...

  1. 33 CFR 127.201 - Sensing and alarm systems.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... systems. (a) Fixed sensors must have audio and visual alarms in the control room and audio alarms nearby. (b) Fixed sensors that continuously monitor for LNG vapors must— (1) Be in each enclosed area where vapor or gas may accumulate; and (2) Meet Section 9-4 of NFPA 59A. (c) Fixed sensors that...

  2. Pressurized security barrier and alarm system

    DOEpatents

    Carver, D.W.

    1995-04-11

    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. 7 figures.

  3. Pressurized security barrier and alarm system

    DOEpatents

    Carver, Don W.

    1995-01-01

    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.

  4. 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.

  5. The spectrum of basaltic feeder systems from effusive lava eruption to explosive eruption at Miyakejima volcano, Japan

    NASA Astrophysics Data System (ADS)

    Geshi, Nobuo; Oikawa, Teruki

    2014-03-01

    Basaltic feeder systems exposed in the caldera wall of Miyakejima volcano are classified into three groups: (1) effusive feeders, (2) moderately explosive feeders, and (3) highly explosive feeders. The surface deposits and feeder systems reveal a wide variation in the explosivity of the eruptions that produced them, ranging from non-explosive lava effusions to violent explosive eruptions, despite the apparent lack of influence of external water. Effusive feeders are filled with coherent (non-fragmented) intrusive rock, indicating no significant fragmentation in the feeder system. The other two types of feeder systems consist of a coherent dike in their deeper part and a pyroclastic fill in their uppermost part. Their uppermost parts show an upward-flaring shape. The transition from coherent intrusion to pyroclastic fill in the feeder systems suggests underground fragmentation of the rising magma. The depth of the coherent-pyroclastic transition is deeper (20-150 m) in highly explosive feeders than in the moderately explosive feeders (<20 m), and coincides with the depth at which the system flares upwards. Presence of lithic fragments derived from the host rock in the products of the highly explosive feeder systems indicates the removal of the wall rock by explosive activity. This observation suggests that the fragmentation of rising magma promoted the enlargement of the feeder systems to form their upward-flaring shapes, by mechanical erosion and wall collapse.

  6. Perimeter security alarm system based on fiber Bragg grating

    NASA Astrophysics Data System (ADS)

    Zhang, Cui; Wang, Lixin

    2010-11-01

    With the development of the society and economy and the improvement of living standards, people need more and more pressing security. Perimeter security alarm system is widely regarded as the first line of defense. A highly sensitive Fiber Bragg grating (FBG) vibration sensor based on the theory of the string vibration, combined with neural network adaptive dynamic programming algorithm for the perimeter security alarm system make the detection intelligently. Intelligent information processing unit identify the true cause of the vibration of the invasion or the natural environment by analyzing the frequency of vibration signals, energy, amplitude and duration. Compared with traditional perimeter security alarm systems, such as infrared perimeter security system and electric fence system, FBG perimeter security alarm system takes outdoor passive structures, free of electromagnetic interference, transmission distance through optical fiber can be as long as 20 km It is able to detect the location of event within short period of time (high-speed response, less than 3 second).This system can locate the fiber cable's breaking sites and alarm automatically if the cable were be cut. And the system can prevent effectively the false alarm from small animals, birds, strong wind, scattering things, snowfalls and vibration of sensor line itself. It can also be integrated into other security systems. This system can be widely used in variety fields such as military bases, nuclear sites, airports, warehouses, prisons, residence community etc. It will be a new force of perimeter security technology.

  7. 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.

  8. 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

  9. 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

  10. Hypoglycemia Early Alarm Systems Based On Multivariable Models

    PubMed Central

    Turksoy, Kamuran; Bayrak, Elif S; Quinn, Lauretta; Littlejohn, Elizabeth; Rollins, Derrick; Cinar, Ali

    2013-01-01

    Hypoglycemia is a major challenge of artificial pancreas systems and a source of concern for potential users and parents of young children with Type 1 diabetes (T1D). Early alarms to warn the potential of hypoglycemia are essential and should provide enough time to take action to avoid hypoglycemia. Many alarm systems proposed in the literature are based on interpretation of recent trends in glucose values. In the present study, subject-specific recursive linear time series models are introduced as a better alternative to capture glucose variations and predict future blood glucose concentrations. These models are then used in hypoglycemia early alarm systems that notify patients to take action to prevent hypoglycemia before it happens. The models developed and the hypoglycemia alarm system are tested retrospectively using T1D subject data. A Savitzky-Golay filter and a Kalman filter are used to reduce noise in patient data. The hypoglycemia alarm algorithm is developed by using predictions of future glucose concentrations from recursive models. The modeling algorithm enables the dynamic adaptation of models to inter-/intra-subject variation and glycemic disturbances and provides satisfactory glucose concentration prediction with relatively small error. The alarm systems demonstrate good performance in prediction of hypoglycemia and ultimately in prevention of its occurrence. PMID:24187436

  11. 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.

  12. A TWACS system alarm function for distribution automation

    SciTech Connect

    Mak, S.T.; Radford, D. )

    1994-04-01

    A new application designated as the System Alarm Function'' is made possible by using the Unsolicited Inbound'' capability recently developed for the Two Way Automatic Communication System (TWACS) System-10, which is already used by several electric utilities in the USA for demand side management, remote metering and distribution automation is reviewed here. The UNSOLICITED INBOUND'' algorithm development, the operational issues that are pertinent to the understanding of collisions between multiple alarms and the effects on the alarm response time'' are discussed in detail. This master-to-master relationship between remote transponders in the distribution network and the central control computer opens the door to multiple functional capabilities in the area of distribution automation and remote monitoring.

  13. Development of real time alarm/surveillance system

    SciTech Connect

    Kajiyoshi, M.; Uchida, S.; Suenaga, S.; Iwabuchi, M.; Fujimoto, T.; Yoshimura, A.

    1987-07-01

    PNC has carried out real time alarm/surveillance system as a part of its r and d programs on the physical protection systems for its nuclear facilities from 1984 to 1986. The guard operates a closed circuit television (CCTV) camera to see whether the alarms are caused from intruders or from accident in the existing physical protection systems. But it is very difficult to assess rapidly moving objects using such a TV system. Monitor images are used to be continuously recorded by VTR, but it does not seem to be very suitable or it takes quite a long time to play back. Aiming at more effective and reliable physical protection systems, a new alarm/surveillance system was developed, the system detects persons entering into the surveillance zone and provides effective means to confirm. The system detects moving persons in a double fenced zone using image processing technique. Detection information such as time, position, detected images are displayed, printed and recorded, so that cause of false alarms, if occurred can be found easily.

  14. 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.

  15. 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…

  16. Alarms Philosophy

    SciTech Connect

    White, Karen S; Kasemir, Kay

    2009-01-01

    An effective alarm system consists of a mechanism to monitor control points and generate alarm notifications, tools for operators to view, hear, acknowledge and handle alarms and a good configuration. Despite the availability of numerous fully featured tools, accelerator alarm systems continue to be disappointing to operations, frequently to the point of alarms being permanently silenced or totally ignored. This is often due to configurations that produce an excessive number of alarms or fail to communicate the required operator response. Most accelerator controls systems do a good job of monitoring specified points and generating notifications when parameters exceed predefined limits. In some cases, improved tools can help, but more often, poor configuration is the root cause of ineffective alarm systems. A SNS, we have invested considerable effort in generating appropriate configurations using a rigorous set of rules based on best practices in the industrial process controls community. This paper will discuss our alarm configuration philosophy and operator response to our new system.

  17. 46 CFR 154.1842 - Cargo system: Controls and alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Cargo system: Controls and alarms. 154.1842 Section 154.1842 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Operations § 154.1842...

  18. 46 CFR 154.1842 - Cargo system: Controls and alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 5 2012-10-01 2012-10-01 false Cargo system: Controls and alarms. 154.1842 Section 154.1842 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Operations § 154.1842...

  19. 46 CFR 154.1842 - Cargo system: Controls and alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 5 2013-10-01 2013-10-01 false Cargo system: Controls and alarms. 154.1842 Section 154.1842 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Operations § 154.1842...

  20. 46 CFR 154.1842 - Cargo system: Controls and alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 5 2014-10-01 2014-10-01 false Cargo system: Controls and alarms. 154.1842 Section 154.1842 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Operations § 154.1842...

  1. 46 CFR 120.550 - General alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false General alarm systems. 120.550 Section 120.550 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS ELECTRICAL INSTALLATION...

  2. Conceptual design of a High Temperature Superconductor current feeder system for ITER

    NASA Astrophysics Data System (ADS)

    Tanna, V. L.; Fietz, W. H.; Heller, R.; Vostner, A.; Wesche, R.; Zahn, G. R.

    2006-06-01

    The International Thermonuclear Experimental Reactor (ITER) project envisages a techno-economically feasible solution of its current feeder system in order to reduce the overall cryogenic requirements and operational costs. Since the ITER magnet system has a long stand-by time with respect to its operation duty cycle, it is essential to optimize the operational costs of the current feeder system taking into consideration both, the full current and stand-by modes. The present HTS technology has reached the maturity that HTS conductors are applicable for the current feeder system of ITER. The replacement of the actually planned conventional current leads by HTS current leads would provide considerable savings in the refrigeration investment and operational costs. Another option is the substitution of the water cooled high current aluminum feeders by HTS feeders, so called HTS bus bars. In this paper, the different design options of Bi-2223/Ag HTS based bus bars as prototype unit modules for ITER are discussed. The performance of different cooling schemes for HTS bus bars is studied and the design related critical issues e.g. metallic transition (65 K -300 K) and bending of bus bar, AC loss, thermal loss and reliability of the cooling system are investigated.

  3. 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.

  4. Reducing SCADA System Nuisance Alarms in the Water Industry in Northern Ireland.

    PubMed

    O'Donoghue, Nigel; Phillips, Debra H; Nicell, Ciaran

    2015-08-01

    The advancement of telemetry control for the water industry has increased the difficulty of managing large volumes of nuisance alarms (i.e., alarms that do not require a response). The aim of this study was to identify and reduce the number of nuisance alarms that occur for Northern Ireland (NI) Water by carrying out alarm duration analysis to determine the appropriate length of persistence (an advanced alarm management tool) that could be applied. All data were extracted from TelemWeb (NI Water's telemetry monitoring system) and analyzed in Excel. Over a 6-week period, an average of 40 000 alarms occurred per week. The alarm duration analysis, which has never been implemented before by NI Water, found that an average of 57% of NI Water alarms had a duration of <5 minutes. Applying 5-minute persistence, therefore, could prevent an average 26 816 nuisance alarms per week. Most of these alarms were from wastewater assets. PMID:26237691

  5. 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

  6. All-optical SOA latch fail-safe alarm system

    NASA Astrophysics Data System (ADS)

    McAulay, Alastair D.

    2004-11-01

    Emergency alarm systems, for example, that switch off critical processes in process plant, are vulnerable to deliberate or accidental sabotage through coupling of electromagnetic pulses (EMP) to wires and/or from sparks due to broken wires. A proposed system significantly reduces vulnerability by using a fast all-optical latch in conjunction with an optical sensor and optical fibers. Sparks cannot be created on breaking an optical beam and electromagnetic field transients have negligible effect on optical signals. The optical latch uses optical semiconductor amplifiers (SOAs) configured to form a flip-flop. The flip-flop latches after the occurrence of an intrusion that may be as short as a few nanoseconds, much faster than most environmental changes occur. Detection of an emergency or any break in connections causes the light to drop, triggering the alarm. Computer simulation shows that the all-optical latch is fast and effective.

  7. Ultra low frequency electromagnetic fire alarm system for underground mines

    SciTech Connect

    Not Available

    1991-01-01

    During an underground mine fire, air can be rapidly depleted of oxygen and contaminated with smoke and toxic fire gases. Any delay in warning miners could have disastrous consequences. Unfortunately, present mine fire alarm systems, such as stench, audible or visual alarms, telephones, and messengers, are often slow, unreliable, and limited in mine area coverage. Recent research by the U.S. Bureau of Mines has demonstrated that ultra-low-frequency electromagnetic signaling can be used for an underground mine fire alarm. In field tests of prototype equipment at five mines, electromagnetic signals from 630 to 2,000 Hz were transmitted through mine rock for distances as great as 1,645 m to an intrinsically safe receiver. The prototype system uses off-the-shelf components and state-of-the-art technology to ensure high reliability and low cost. When utilized, this technology would enable simultaneous and instantaneous warning of all underground personnel, regardless of their location or work activity, thereby increasing the likelihood of their successfully escaping a mine disaster. This paper presents the theoretical basis for through-the-rock ultra-low-frequency electromagnetic transmission, design of the prototype transmitter and receiver, and the results of in-mine tests of the prototype system.

  8. 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.

    2009-12-01

    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.

  9. Web-based integrated alarm monitoring system in the ICU.

    PubMed

    Murakami, Akitsugu; Kinouchi, Yohsuke; Akutagawa, Masatake; Ohnishi, Yoshiaki; Kuroda, Yasuhiro

    2005-01-01

    A web-based monitoring system for the alarm of equipment has developed for the conventional environment of Intensive Care Unit (ICU). The system communicates with equipment using Data Collection Interface (DCI) that converts the protocol of the output of equipment from RS-232C to TCP/IP. The system creates a web-document that can be referred from any internet-connected personal computer in the hospital. Using the system, a staff can easily monitor the state of the patient and the equipment. If the system is installed in the ICU, monitoring and management for the equipment will be highly improved. PMID:17281636

  10. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 5 2013-10-01 2013-10-01 false Liquid level alarm system: All cargo tanks. 154.1325... Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks. Except as allowed under § 154.1330, each cargo tank must have a high liquid level alarm system that: (a) Is independent of...

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

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 5 2014-10-01 2014-10-01 false Liquid level alarm system: All cargo tanks. 154.1325... Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks. Except as allowed under § 154.1330, each cargo tank must have a high liquid level alarm system that: (a) Is independent of...

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

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 5 2012-10-01 2012-10-01 false Liquid level alarm system: All cargo tanks. 154.1325... Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks. Except as allowed under § 154.1330, each cargo tank must have a high liquid level alarm system that: (a) Is independent of...

  13. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 5 2011-10-01 2011-10-01 false Liquid level alarm system: All cargo tanks. 154.1325... Equipment Instrumentation § 154.1325 Liquid level alarm system: All cargo tanks. Except as allowed under § 154.1330, each cargo tank must have a high liquid level alarm system that: (a) Is independent of...

  14. 33 CFR 149.665 - What are the requirements for a general alarm system?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...? Each pumping platform complex must have a general alarm system that: (a) Is capable of being manually activated by using alarm boxes; (b) Is audible in all parts of the pumping platform complex, except in...

  15. Orthos, an alarm system for the ALICE DAQ operations

    NASA Astrophysics Data System (ADS)

    Chapeland, Sylvain; Carena, Franco; Carena, Wisla; Chibante Barroso, Vasco; Costa, Filippo; Denes, Ervin; Divia, Roberto; Fuchs, Ulrich; Grigore, Alexandru; Simonetti, Giuseppe; Soos, Csaba; Telesca, Adriana; Vande Vyvre, Pierre; von Haller, Barthelemy

    2012-12-01

    ALICE (A Large Ion Collider Experiment) is the heavy-ion detector studying the physics of strongly interacting matter and the quark-gluon plasma at the CERN LHC (Large Hadron Collider). The DAQ (Data Acquisition System) facilities handle the data flow from the detectors electronics up to the mass storage. The DAQ system is based on a large farm of commodity hardware consisting of more than 600 devices (Linux PCs, storage, network switches), and controls hundreds of distributed hardware and software components interacting together. This paper presents Orthos, the alarm system used to detect, log, report, and follow-up abnormal situations on the DAQ machines at the experimental area. The main objective of this package is to integrate alarm detection and notification mechanisms with a full-featured issues tracker, in order to prioritize, assign, and fix system failures optimally. This tool relies on a database repository with a logic engine, SQL interfaces to inject or query metrics, and dynamic web pages for user interaction. We describe the system architecture, the technologies used for the implementation, and the integration with existing monitoring tools.

  16. Real-Time Distribution Feeder Performance Monitoring, Advisory Control, and Health Management System

    SciTech Connect

    Stoupis, James; Mousavi, Mirrasoul

    2014-09-30

    New data collection system equipment was installed in Xcel Energy substations and data was collected from 6 substations and 20 feeders. During Phase I, ABB collected and analyzed 793 real-time events to date from 6 Xcel Energy substations and continues today. The development and integration of several applications was completed during the course of this project, including a model-based faulted segment identification algorithm, with very positive results validated with field-gathered data discussed and included in this report. For mostly underground feeders, the success rate is 90% and the overreach rate is 90%. For mostly overhead feeders, the success rate is 74% and the overreach rate is 50%. The developed method is producing very accurate results for mostly underground feeders. For mostly overhead feeders, due to the bad OMS data quality and varying fault resistance when arcing, the developed method is producing good results but with much room for improvement. One area where the algorithm can be improved is the accuracy for sub-cycle fault events. In these cases, the accuracy of the conventional signal processing methods suffers due to most of these methods being based on a one-cycle processing window. By improving the signal processing accuracy, the accuracy of the faulted segment identification algorithm will also improve significantly. ABB intends to devote research in this area in the near future to help solve this problem. Other new applications developed during the course of the project include volt/VAR monitoring, unbalanced capacitor switching detection, unbalanced feeder loading detection, and feeder overloading detection. An important aspect of the demonstration phase of the project is to show the ability to provide adequate “heads-up” time ahead of customer calls or AMI reports so that the operators are provided with the much needed time to collect information needed to address an outage. The advance notification feature of the demonstration system

  17. Human factors engineering guidance for the review of advanced alarm systems

    SciTech Connect

    O`Hara, J.M.; Brown, W.S.; Higgins, J.C.; Stubler, W.F.

    1994-09-01

    This report provides guidance to support the review of the human factors aspects of advanced alarm system designs in nuclear power plants. The report is organized into three major sections. The first section describes the methodology and criteria that were used to develop the design review guidelines. Also included is a description of the scope, organization, and format of the guidelines. The second section provides a systematic review procedure in which important characteristics of the alarm system are identified, described, and evaluated. The third section provides the detailed review guidelines. The review guidelines are organized according to important characteristics of the alarm system including: alarm definition; alarm processing and reduction; alarm prioritization and availability; display; control; automated; dynamic, and modifiable characteristics; reliability, test, maintenance, and failure indication; alarm response procedures; and control-display integration and layout.

  18. Effects of Home Energy Management Systems on Distribution Utilities and Feeders Under Various Market Structures: Preprint

    SciTech Connect

    Ruth, Mark; Pratt, Annabelle; Lunacek, Monte; Mittal, Saurabh; Wu, Hongyu; Jones, Wesley

    2015-07-17

    The combination of distributed energy resources (DER) and retail tariff structures to provide benefits to both utility consumers and the utilities is poorly understood. To improve understanding, an Integrated Energy System Model (IESM) is being developed to simulate the physical and economic aspects of DER technologies, the buildings where they reside, and feeders servicing them. The IESM was used to simulate 20 houses with home energy management systems on a single feeder under a time of use tariff to estimate economic and physical impacts on both the households and the distribution utilities. HEMS reduce consumers’ electric bills by precooling houses in the hours before peak electricity pricing. Household savings are greater than the reduction utility net revenue indicating that HEMS can provide a societal benefit providing tariffs are structured so that utilities remain solvent. Utilization of HEMS reduce peak loads during high price hours but shifts it to hours with off-peak and shoulder prices and resulting in a higher peak load.

  19. An advanced extruder-feeder biomass liquefaction reactor system

    NASA Astrophysics Data System (ADS)

    White, Don H.; Wolf, D.; Davenport, G.; Mathews, S.; Porter, M.; Zhao, Y.

    1987-11-01

    A unique method of pumping concentrated, viscous biomass slurries that are characteristic of biomass direct liquefaction systems was developed. A modified single-screw extruder was shown to be capable of pumping solid slurries as high as 60 weight percent wood flour in wood oil derived vacuum bottoms, as compared to only 10 to 20 weight percent wood flour in wood oil in conventional systems. During the period August, 1985 to April, 1987, a total of 18 experimental continuous biomass liquefaction runs were made using white birch feedstock. Good operability with feed rates up to 30 lb/hr covering a range of carbon monoxide, sodium carbonate catalyst, pressures from 800 to 3000 psi and temperatures from 350 C to 430 C was achieved. Crude wood oils containing 6 to 10 weight percent residual oxygen were obtained. Other wood oil characteristics are reported.

  20. 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.

  1. Development of an on-line expert system for integrated alarm processing in nuclear power plants

    SciTech Connect

    Kim, Han Gon; Choi, Seong Soo; Kang, Ki Sig; Chang, Soon Heung

    1994-12-31

    An on-line expert system, called AFDS (Alarm Filtering and Diagnostic System), has been developed to assist operators in effectively maintaining plant safety and to enhance plant availability using advanced computer technologies for alarm processing. The AFDS is designed to perform alarm filtering and overall plantwide diagnosis when an abnormal state occurs. in addition to these functions, it carries out alarm prognosis to provide the operator with prediction-based messages and to generate high-level alarms that can be used as another diagnostic information. The system is developed on a SUN SPARC 2 workstation, and its target domain is the alarm system in the main control room of Yonggwang units 1 and 2.

  2. 46 CFR 31.35-5 - Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31.35-5 Section 31.35-5 Shipping COAST GUARD, DEPARTMENT... Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL. All...

  3. 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

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31.35-5 Section 31.35-5 Shipping COAST GUARD, DEPARTMENT... Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL. All...

  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

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31.35-5 Section 31.35-5 Shipping COAST GUARD, DEPARTMENT... Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL. All...

  5. 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

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.-TB/ALL. 31.35-5 Section 31.35-5 Shipping COAST GUARD, DEPARTMENT... Communications; alarm systems, telephone and voice tube systems, engine telegraph systems, etc.—TB/ALL. All...

  6. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section 113.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Systems § 113.25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned...

  7. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section 113.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Systems § 113.25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned...

  8. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section 113.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Systems § 113.25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned...

  9. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section 113.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Systems § 113.25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned...

  10. 46 CFR 113.25-25 - General emergency alarm systems for manned ocean and coastwise barges.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false General emergency alarm systems for manned ocean and coastwise barges. 113.25-25 Section 113.25-25 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Systems § 113.25-25 General emergency alarm systems for manned ocean and coastwise barges. A manned...

  11. The research of highway traffic accident management and pre-alarm system

    NASA Astrophysics Data System (ADS)

    Xu, Jianping; Zhang, Tiejun; Wan, Jiaonan; Zhang, Juwen; Wang, Rui

    For the rigorous traffic safety issues resulting from rapid transportation development, as well as the more and more attention paid to the traffic accidents dynamic analysis and pre-alarm methods, combined with the practical needs of the highway safety management, this paper summarizes the experience of traffic safety pre-alarm research both in domestic and abroad, designs the frame of highway traffic accident management and pre-alarm system from the function and software engineering requirement, and refines kernel modules such as accident prone section judgement, traffic safety pre-alarm analysis and perfecting safety measures analysis, in order to guide the exploitation and application of the system.

  12. A Human Factors Perspective on Alarm System Research and Development 2000 to 2010

    SciTech Connect

    Curt Braun; John Grimes; Eric Shaver; Ronald Boring

    2011-09-01

    By definition, alarms serve to notify human operators of out-of-parameter conditions that could threaten equipment, the environment, product quality and, of course, human life. Given the complexities of industrial systems, human machine interfaces, and the human operator, the understanding of how alarms and humans can best work together to prevent disaster is continually developing. This review examines advances in alarm research and development from 2000 to 2010 and includes the writings of trade professionals, engineering and human factors researchers, and standards organizations with the goal of documenting advances in alarms system design, research, and implementation.

  13. Dry coal feeder development program at Ingersoll-Rand Research, Incorporated. [for coal gasification systems

    NASA Technical Reports Server (NTRS)

    Mistry, D. K.; Chen, T. N.

    1977-01-01

    A dry coal screw feeder for feeding coal into coal gasification reactors operating at pressures up to 1500 psig is described. Results on the feeder under several different modes of operation are presented. In addition, three piston feeder concepts and their technical and economical merits are discussed.

  14. A Single-Cell and Feeder-Free Culture System for Monkey Embryonic Stem Cells

    PubMed Central

    Ono, Takashi; Suzuki, Yutaka; Kato, Yosuke; Fujita, Risako; Araki, Toshihiro; Yamashita, Tomoko; Kato, Hidemasa; Torii, Ryuzo; Sato, Naoya

    2014-01-01

    Primate pluripotent stem cells (PSCs), including embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), hold great potential for research and application in regenerative medicine and drug discovery. To maximize primate PSC potential, a practical system is required for generating desired functional cells and reproducible differentiation techniques. Much progress regarding their culture systems has been reported to date; however, better methods would still be required for their practical use, particularly in industrial and clinical fields. Here we report a new single-cell and feeder-free culture system for primate PSCs, the key feature of which is an originally formulated serum-free medium containing FGF and activin. In this culture system, cynomolgus monkey ESCs can be passaged many times by single-cell dissociation with traditional trypsin treatment and can be propagated with a high proliferation rate as a monolayer without any feeder cells; further, typical PSC properties and genomic stability can be retained. In addition, it has been demonstrated that monkey ESCs maintained in the culture system can be used for various experiments such as in vitro differentiation and gene manipulation. Thus, compared with the conventional culture system, monkey ESCs grown in the aforementioned culture system can serve as a cell source with the following practical advantages: simple, stable, and easy cell maintenance; gene manipulation; cryopreservation; and desired differentiation. We propose that this culture system can serve as a reliable platform to prepare primate PSCs useful for future research and application. PMID:24505480

  15. Orion Entry Display Feeder and Interactions with the Entry Monitor System

    NASA Technical Reports Server (NTRS)

    Baird, Darren; Bernatovich, Mike; Gillespie, Ellen; Kadwa, Binaifer; Matthews, Dave; Penny, Wes; Zak, Tim; Grant, Mike; Bihari, Brian

    2010-01-01

    The Orion spacecraft is designed to return astronauts to a landing within 10 km of the intended landing target from low Earth orbit, lunar direct-entry, and lunar skip-entry trajectories. Al pile the landing is nominally controlled autonomously, the crew can fly precision entries manually in the event of an anomaly. The onboard entry displays will be used by the crew to monitor and manually fly the entry, descent, and landing, while the Entry Monitor System (EMS) will be used to monitor the health and status of the onboard guidance and the trajectory. The entry displays are driven by the entry display feeder, part of the Entry Monitor System (EMS). The entry re-targeting module, also part of the EMS, provides all the data required to generate the capability footprint of the vehicle at any point in the trajectory, which is shown on the Primary Flight Display (PFD). It also provides caution and warning data and recommends the safest possible re-designated landing site when the nominal landing site is no longer within the capability of the vehicle. The PFD and the EMS allow the crew to manually fly an entry trajectory profile from entry interface until parachute deploy having the flexibility to manually steer the vehicle to a selected landing site that best satisfies the priorities of the crew. The entry display feeder provides data from the ENIS and other components of the GNC flight software to the displays at the proper rate and in the proper units. It also performs calculations that are specific to the entry displays and which are not made in any other component of the flight software. In some instances, it performs calculations identical to those performed by the onboard primary guidance algorithm to protect against a guidance system failure. These functions and the interactions between the entry display feeder and the other components of the EMS are described.

  16. 46 CFR 95.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Fire detecting, manual alarm, and supervised patrol... AND MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing Equipment, Where Required § 95.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting,...

  17. 46 CFR 95.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Fire detecting, manual alarm, and supervised patrol... AND MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT Fire Detecting and Extinguishing Equipment, Where Required § 95.05-1 Fire detecting, manual alarm, and supervised patrol systems. (a) Fire detecting,...

  18. Emergency Vehicle Alarm System for Deaf Drivers by Using LEDs and Vibration Devices

    NASA Astrophysics Data System (ADS)

    Kuwahara, Noriaki; Morimoto, Kazunari; Kozuki, Kazumasa; Kawamura, Tomonori

    We are developing the emergency vehicle alarm system for deaf drivers by using LEDs and vibration devices. In order to design the alarm for deaf drivers, we have conducted basic experiment in order to evaluate perceptual characteristic on visibility of LED.

  19. Evolution of the Design of Cold Mass Support for the ITER Magnet Feeder System

    NASA Astrophysics Data System (ADS)

    Lu, Kun; Song, Yuntao; Niu, Erwu; Zhou, Tinzhi; Wang, Zhongwei; Chen, Yonghua; Zhu, Yinfeng

    2013-02-01

    This paper presents the evolution of the design of cold mass support for the ITER magnet feeder system. The glass fibers in the cylinder and the flanges of the normal G10 support are discontinuous in the preliminary design. The heat load of this support from the analysis is only 4.86 W. However, the mechanical test of the prototype showed that it can only endure 9 kN lateral force, which is significantly less than the required 20 kN. So, the configuration of the glass fibers in the cylinders and flanges of this G10 support are modified by changing it to a continuous and knitted type to reinforce the support, and then a new improved prototype is manufactured and tested. It could endure 15 kN lateral forces this time, but still not meet the required 20 kN. Finally, the SS316LN material is chosen for the cold mass supports. The analysis results show that it is safe under 20 kN lateral forces with the heat load increased to 14.8 W. Considering the practical application, the requirements of strength is of primary importance. So, this SS316LN cold mass support is acceptable for the ITER magnet feeder system. On the other hand, the design idea of using continuous and knitted glass fibers to reinforce the strength of a G10 support is a good reference for the case with a lower heat load and not too high Lorentz force.

  20. Turbidite systems in deep-water basin margins classified by grain size and feeder system

    SciTech Connect

    Reading, H.G. ); Richards, M. )

    1994-05-01

    Depositional system in deep-water basin margins can be classified on the basis of grain size and feeder system into 12 classes: mud-rich, mud/sand-rich, sand-rich, and gravel-rich [open quotes]point-source submarine fans,[close quotes] mud-rich, mud/sand-rich, sand-rich, and gravel-rich [open quotes]multiple-source submarine ramps;[close quotes] and mud-rich, mud/sand-rich, sand-rich, and gravel-rich [open quotes]linear-source slope aprons.[close quotes] The size and stability of channels and the organization of the depositional sequences decreases toward a linear source as does the length:width ratio of the system. As grain size increases, so does slope gradient, impersistence of channel systems, and tendency for channels to migrate. As grain size diminishes, there is an increase in the size of the source area, the size of the depositional system, the downcurrent length, the persistence and size of flows, fan channels, channel-levee systems, and in the tendency to meander and for major slumps and sheet sands to reach the lower fan and basin plan. The exact positioning of any one depositional system within the scheme cannot always be precise and the position may be altered by changes in tectonic, climate, supply, and sea level. The models derived from each system are sufficiently different to significantly affect the nature of petroleum prospectivity and reservoir pattern. Understanding and recognizing this variability is crucial to all elements of the exploration-production chain. In exploration, initial evaluations of prospectivity and commerciality rely on the accurate stratigraphic prediction of reservoir facies, architecture, and trapping styles. For field appraisal and reservoir development, a similar appreciation of variability aids reservoir description by capturing the distribution and architecture of reservoir and nonreservoir facies and their impact on reservoir delineation, reservoir behavior, and production performance. 161 refs., 19 figs., 4 tabs.

  1. Cool Down Experiences with the SST-1 Helium Cryogenics System before and after Current Feeders System Modification

    NASA Astrophysics Data System (ADS)

    Patel, R.; Panchal, P.; Panchal, R.; Tank, J.; Mahesuriya, G.; Sonara, D.; Srikanth, G. L. N.; Garg, A.; Bairagi, N.; Christian, D.; Patel, K.; Shah, P.; Nimavat, H.; Sharma, R.; Patel, J. C.; Gupta, N. C.; Prasad, U.; Sharma, A. N.; Tanna, V. L.; Pradhan, S.

    The SST-1 machine comprises a superconducting magnet system (SCMS), which includes TF and PF magnets. In order to charge the SCMS, we need superconducting current feeders consisting of SC feeders and vapor cooled current leads (VCCLs). We have installed all 10 (+/-) pairs of VCCLs for the TF and PF systems. While conducting initial engineering validation of the SST-1 machine, our prime objective was to produce circular plasma using only the TF system. During the SST-1 campaign I to VI, we have to stop the PF magnets cooling in order to get the cryo- stable conditions for current charging of the TF magnets system. In that case, the cooling of the PF current leads is not essential. It has been also observed that after aborting the PF system cooling, there was a limited experimental window of TF operation. Therefore, in the recent SST-1 campaign-VII, we removed the PF current leads (9 pairs) and kept only single (+/-) pair of the 10,000 A rated VCCLs to realize the charging of the TF system for the extended window of operation. We have observed a better cryogenic stability in the TF magnets after modifications in the CFS. In this paper, we report the comparison of the cool down performance for the SST-1 machine operation before and after modifications of the current feeders system.

  2. Development and Evaluation of New Coupling System for Lower Limb Prostheses with Acoustic Alarm System

    PubMed Central

    Eshraghi, Arezoo; Osman, Noor Azuan Abu; Gholizadeh, Hossein; Ahmadian, Jalil; Rahmati, Bizhan; Abas, Wan Abu Bakar Wan

    2013-01-01

    Individuals with lower limb amputation need a secure suspension system for their prosthetic devices. A new coupling system was developed that is capable of suspending the prosthesis. The system's safety is ensured through an acoustic alarm system. This article explains how the system works and provides an in vivo evaluation of the device with regard to pistoning during walking. The system was designed to be used with silicone liners and is based on the requirements of prosthetic suspension systems. Mechanical testing was performed using a universal testing machine. The pistoning during walking was measured using a motion analysis system. The new coupling device produced significantly less pistoning compared to a common suspension system (pin/lock). The safety alarm system would buzz if the suspension was going to fail. The new coupling system could securely suspend the prostheses in transtibial amputees and produced less vertical movement than the pin/lock system. PMID:23881340

  3. SILENE Benchmark Critical Experiments for Criticality Accident Alarm Systems

    SciTech Connect

    Miller, Thomas Martin; Reynolds, Kevin H.

    2011-01-01

    In October 2010 a series of benchmark experiments was conducted at the Commissariat a Energie Atomique et aux Energies Alternatives (CEA) Valduc SILENE [1] facility. These experiments were a joint effort between the US Department of Energy (DOE) and the French CEA. The purpose of these experiments was to create three benchmarks for the verification and validation of radiation transport codes and evaluated nuclear data used in the analysis of criticality accident alarm systems (CAASs). This presentation will discuss the geometric configuration of these experiments and the quantities that were measured and will present some preliminary comparisons between the measured data and calculations. This series consisted of three single-pulsed experiments with the SILENE reactor. During the first experiment the reactor was bare (unshielded), but during the second and third experiments it was shielded by lead and polyethylene, respectively. During each experiment several neutron activation foils and thermoluminescent dosimeters (TLDs) were placed around the reactor, and some of these detectors were themselves shielded from the reactor by high-density magnetite and barite concrete, standard concrete, and/or BoroBond. All the concrete was provided by CEA Saclay, and the BoroBond was provided by Y-12 National Security Complex. Figure 1 is a picture of the SILENE reactor cell configured for pulse 1. Also included in these experiments were measurements of the neutron and photon spectra with two BICRON BC-501A liquid scintillators. These two detectors were provided and operated by CEA Valduc. They were set up just outside the SILENE reactor cell with additional lead shielding to prevent the detectors from being saturated. The final detectors involved in the experiments were two different types of CAAS detectors. The Babcock International Group provided three CIDAS CAAS detectors, which measured photon dose and dose rate with a Geiger-Mueller tube. CIDAS detectors are currently in

  4. Alarm communication and display systems for high security department of energy facilities

    SciTech Connect

    Williams, J.S.

    1987-01-01

    An Alarm Communication and Display System collects alarm data, presents information to security operators, and enables the operators to enter commands affecting security operations; the ultimate goal of the system is to provide rapid assessment of alarms. This paper presents an overview of the architecture and operating principles used for alarm communication and display systems developed for application at several Department of Energy facilities. Although facilities have unique requirements and procedures, the architecture and operating principles of the ACDS presented in this paper have allowed site-specific implementations at several Department of Energy facilities. In addition, this technology has been transferred to other DOE facilities for adaptation to their requirements. Further efforts to enhance ACDS technology include the use of local area network technology to assist in peripheral switching, a distributed CCTV video switching system, and state-of-the-art hardware changes which improve system performance and effectiveness.

  5. Nuisance alarm suppression techniques for fibre-optic intrusion detection systems

    NASA Astrophysics Data System (ADS)

    Mahmoud, Seedahmed S.; Visagathilagar, Yuvaraja; Katsifolis, Jim

    2012-02-01

    The suppression of nuisance alarms without degrading sensitivity in fibre-optic intrusion detection systems is important for maintaining acceptable performance. Signal processing algorithms that maintain the POD and minimize nuisance alarms are crucial for achieving this. A level crossings algorithm is presented for suppressing torrential rain-induced nuisance alarms in a fibre-optic fence-based perimeter intrusion detection system. Results show that rain-induced nuisance alarms can be suppressed for rainfall rates in excess of 100 mm/hr, and intrusion events can be detected simultaneously during rain periods. The use of a level crossing based detection and novel classification algorithm is also presented demonstrating the suppression of nuisance events and discrimination of nuisance and intrusion events in a buried pipeline fibre-optic intrusion detection system. The sensor employed for both types of systems is a distributed bidirectional fibre-optic Mach Zehnder interferometer.

  6. 40 CFR 267.34 - When must personnel have access to communication equipment or an alarm system?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... communication equipment or an alarm system? 267.34 Section 267.34 Protection of Environment ENVIRONMENTAL... have access to communication equipment or an alarm system? (a) Whenever hazardous waste is being poured... to an internal alarm or emergency communication device, either directly or through visual or...

  7. Earthquake alarm system for the Maui-A offshore platform, New Zealand

    SciTech Connect

    Tyler, R.G.; Beck, J.L.

    1983-02-01

    Situated in the Tasman Sea, the Maui A offshore gas production platform has an earthquake alarm system that gives immediate warning when the seismic accelerations reach half the platform's design level. The system monitors only the response of the lower modes of the platform, as these make the major contribution to the stresses in the structure. In order to reduce the risk of false alarms, a radio link with similar detectors on shore confirms that an earthquake has occurred.

  8. Development of dry coal feeders

    NASA Technical Reports Server (NTRS)

    Bonin, J. H.; Cantey, D. E.; Daniel, A. D., Jr.; Meyer, J. W.

    1977-01-01

    Design and fabrication of equipment of feed coal into pressurized environments were investigated. Concepts were selected based on feeder system performance and economic projections. These systems include: two approaches using rotating components, a gas or steam driven ejector, and a modified standpipe feeder concept. Results of development testing of critical components, design procedures, and performance prediction techniques are reviewed.

  9. Low Power Wireless Smoke Alarm System in Home Fires

    PubMed Central

    Luis, Juan Aponte; Galán, Juan Antonio Gómez; Espigado, Javier Alcina

    2015-01-01

    A novel sensing device for fire detection in domestic environments is presented. The fire detector uses a combination of several sensors that not only detect smoke, but discriminate between different types of smoke. This feature avoids false alarms and warns of different situations. Power consumption is optimized both in terms of hardware and software, providing a high degree of autonomy of almost five years. Data gathered from the device are transmitted through a wireless communication to a base station. The low cost and compact design provides wide application prospects. PMID:26307994

  10. Low Power Wireless Smoke Alarm System in Home Fires.

    PubMed

    Aponte Luis, Juan; Gómez Galán, Juan Antonio; Alcina Espigado, Javier

    2015-01-01

    A novel sensing device for fire detection in domestic environments is presented. The fire detector uses a combination of several sensors that not only detect smoke, but discriminate between different types of smoke. This feature avoids false alarms and warns of different situations. Power consumption is optimized both in terms of hardware and software, providing a high degree of autonomy of almost five years. Data gathered from the device are transmitted through a wireless communication to a base station. The low cost and compact design provides wide application prospects. PMID:26307994

  11. Comparison between the cultures of human induced pluripotent stem cells (hiPSCs) on feeder-and serum-free system (Matrigel matrix), MEF and HDF feeder cell lines.

    PubMed

    Ghasemi-Dehkordi, Payam; Allahbakhshian-Farsani, Mehdi; Abdian, Narges; Mirzaeian, Amin; Saffari-Chaleshtori, Javad; Heybati, Fatemeh; Mardani, Gashtasb; Karimi-Taghanaki, Alireza; Doosti, Abbas; Jami, Mohammad-Saeid; Abolhasani, Marziyeh; Hashemzadeh-Chaleshtori, Morteza

    2015-09-01

    Human induced pluripotent stem cells (hiPSCs) are a type of pluripotent stem cells artificially derived from an adult somatic cell (typically human fibroblast) by forced expression of specific genes. In recent years, different feeders like inactivated mouse embryonic fibroblasts (MEFs), human dermal fibroblasts (HDFs), and feeder free system have commonly been used for supporting the culture of stem cells in undifferentiated state. In the present work, the culture of hiPSCs and their characterizations on BD Matrigel (feeder-and serum-free system), MEF and HDF feeders using cell culture methods and molecular techniques were evaluated and compared. The isolated HDFs from foreskin samples were reprogrammed to hiPSCs using gene delivery system. Then, the pluripotency ability of hiPSCs cultured on each layer was determined by teratoma formation and immunohistochemical staining. After EBs generation the expression level of three germ layers genes were evaluated by Q-real-time PCR. Also, the cytogenetic stability of hiPSCs cultured on each condition was analyzed by karyotyping and comet assay. Then, the presence of pluripotency antigens were confirmed by Immunocytochemistry (ICC) test and alkaline phosphatase staining. This study were showed culturing of hiPSCs on BD Matrigel, MEF and HDF feeders had normal morphology and could maintain in undifferentiated state for prolonged expansion. The hiPSCs cultured in each system had normal karyotype without any chromosomal abnormalities and the DNA lesions were not observed by comet assay. Moreover, up-regulation in three germ layers genes in cultured hiPSCs on each layer (same to ESCs) compare to normal HDFs were observed (p < 0.05). The findings of the present work were showed in stem cells culturing especially hiPSCs both MEF and HDF feeders as well as feeder free system like Matrigel are proper despite benefits and disadvantages. Although, MEFs is suitable for supporting of stem cell culturing but it can animal pathogens

  12. A technical approach for determining the importance of information in computerized alarm systems

    SciTech Connect

    Fortney, D.S.; Lim, J.J.

    1994-06-10

    Computerized alarm and access control systems must be treated as special entities rather than as generic automated information systems. This distinction arises due to the real-time control and monitoring functions performed by these systems at classified facilities and the degree of centralization of a site`s safeguards system information in the associated databases. As an added requirement for these systems, DOE safeguards and security classification policy is to protect information whose dissemination has the potential for significantly increasing the probability of successful adversary action against the facility, or lowering adversary resources needed for a successful attack. Thus at issue is just how valuable would specific alarm system information be to an adversary with a higher order objective. We have developed and applied a technical approach for determining the importance of information contained in computerized alarm and access control systems. The methodology is based on vulnerability assessment rather than blanket classification rules. This method uses a system architecture diagram to guide the analysis and to develop adversary defeat methods for each node and link. These defeat methods are evaluated with respect to required adversary resources, technical difficulty, and detection capability. Then they are incorporated into site vulnerability assessments to determine the significance of alarm system information in the context of a facility attack. This methodology was successfully applied to the Argus alarm, access control, and assessment system developed at the Lawrence Livermore National Lab. Argus is software-driven, contains interrelated databases, shares host computers, and communicates with field processors and alarms through a common network. The evaluation results provided insights into the importance of alarm system information while the methodology itself provided a framework for addressing associated information protection issues.

  13. Establishment of feeder-free culture system for human induced pluripotent stem cell on DAS nanocrystalline graphene

    PubMed Central

    Lee, Hyunah; Nam, Donggyu; Choi, Jae-Kyung; Araúzo-Bravo, Marcos J.; Kwon, Soon-Yong; Zaehres, Holm; Lee, Taehee; Park, Chan Young; Kang, Hyun-Wook; Schöler, Hans R.; Kim, Jeong Beom

    2016-01-01

    The maintenance of undifferentiated human pluripotent stem cells (hPSC) under xeno-free condition requires the use of human feeder cells or extracellular matrix (ECM) coating. However, human-derived sources may cause human pathogen contamination by viral or non-viral agents to the patients. Here we demonstrate feeder-free and xeno-free culture system for hPSC expansion using diffusion assisted synthesis-grown nanocrystalline graphene (DAS-NG), a synthetic non-biological nanomaterial which completely rule out the concern of human pathogen contamination. DAS-NG exhibited advanced biocompatibilities including surface nanoroughness, oxygen containing functional groups and hydrophilicity. hPSC cultured on DAS-NG could maintain pluripotency in vitro and in vivo, and especially cell adhesion-related gene expression profile was comparable to those of cultured on feeders, while hPSC cultured without DAS-NG differentiated spontaneously with high expression of somatic cell-enriched adhesion genes. This feeder-free and xeno-free culture method using DAS-NG will facilitate the generation of clinical-grade hPSC. PMID:26846167

  14. Establishment of feeder-free culture system for human induced pluripotent stem cell on DAS nanocrystalline graphene.

    PubMed

    Lee, Hyunah; Nam, Donggyu; Choi, Jae-Kyung; Araúzo-Bravo, Marcos J; Kwon, Soon-Yong; Zaehres, Holm; Lee, Taehee; Park, Chan Young; Kang, Hyun-Wook; Schöler, Hans R; Kim, Jeong Beom

    2016-01-01

    The maintenance of undifferentiated human pluripotent stem cells (hPSC) under xeno-free condition requires the use of human feeder cells or extracellular matrix (ECM) coating. However, human-derived sources may cause human pathogen contamination by viral or non-viral agents to the patients. Here we demonstrate feeder-free and xeno-free culture system for hPSC expansion using diffusion assisted synthesis-grown nanocrystalline graphene (DAS-NG), a synthetic non-biological nanomaterial which completely rule out the concern of human pathogen contamination. DAS-NG exhibited advanced biocompatibilities including surface nanoroughness, oxygen containing functional groups and hydrophilicity. hPSC cultured on DAS-NG could maintain pluripotency in vitro and in vivo, and especially cell adhesion-related gene expression profile was comparable to those of cultured on feeders, while hPSC cultured without DAS-NG differentiated spontaneously with high expression of somatic cell-enriched adhesion genes. This feeder-free and xeno-free culture method using DAS-NG will facilitate the generation of clinical-grade hPSC. PMID:26846167

  15. Establishment of feeder-free culture system for human induced pluripotent stem cell on DAS nanocrystalline graphene

    NASA Astrophysics Data System (ADS)

    Lee, Hyunah; Nam, Donggyu; Choi, Jae-Kyung; Araúzo-Bravo, Marcos J.; Kwon, Soon-Yong; Zaehres, Holm; Lee, Taehee; Park, Chan Young; Kang, Hyun-Wook; Schöler, Hans R.; Kim, Jeong Beom

    2016-02-01

    The maintenance of undifferentiated human pluripotent stem cells (hPSC) under xeno-free condition requires the use of human feeder cells or extracellular matrix (ECM) coating. However, human-derived sources may cause human pathogen contamination by viral or non-viral agents to the patients. Here we demonstrate feeder-free and xeno-free culture system for hPSC expansion using diffusion assisted synthesis-grown nanocrystalline graphene (DAS-NG), a synthetic non-biological nanomaterial which completely rule out the concern of human pathogen contamination. DAS-NG exhibited advanced biocompatibilities including surface nanoroughness, oxygen containing functional groups and hydrophilicity. hPSC cultured on DAS-NG could maintain pluripotency in vitro and in vivo, and especially cell adhesion-related gene expression profile was comparable to those of cultured on feeders, while hPSC cultured without DAS-NG differentiated spontaneously with high expression of somatic cell-enriched adhesion genes. This feeder-free and xeno-free culture method using DAS-NG will facilitate the generation of clinical-grade hPSC.

  16. Effect of pre- and postweaning management system on the performance on Brahman crossbred feeder calves.

    PubMed

    Phillips, W A; Holloway, J W; Coleman, S W

    1991-08-01

    During a 3-yr period (1986 through 1988), 117 calves (57 steers and 60 heifers) from the same genetic base and reared under four distinct preweaning management systems were weaned in the fall and transported from Uvalde, TX to El Reno, OK (800 km). Weaning weight and transportation shrink varied more from year to year than among preweaning treatments. Postweaning performance was not affected by preweaning treatment. After a 28- to 32-d receiving period the calves were blocked by sex and previous preweaning treatment, then randomly assigned within block to graze winter wheat forage (WHEAT) or dormant tall-grass native range (GRASS). The WHEAT group gained more (P less than .01) weight than the GRASS group during the winter (November to March), but when both groups were allowed to graze spring wheat pasture (March to June) the GRASS group gained more (P less than .01) weight than the WHEAT calves. During the subsequent finishing phase the GRASS calves were more (P less than .01) efficient than the WHEAT calves in converting DM to gain. Because cattle were slaughtered at the same degree of finish, no differences were noted in carcass characteristics among the pre- or postweaning treatments. Feeder calves exposed to a restrictive period of growth during the postweaning period gained weight more rapidly in a subsequent forage-based stockering system and were more efficient in a grain-based finishing system than nonrestricted calves. PMID:1894546

  17. Development of an on-line fuzzy expert system for integrated alarm processing in nuclear power plants

    SciTech Connect

    Choi, S.S.; Kang, K.S.; Kim, H.G.; Chang, S.H.

    1995-08-01

    An on-line fuzzy expert system, called alarm filtering and diagnostic system (AFDS), was developed to provide the operator with clean alarm pictures and system-wide failure information during abnormal states through alarm filtering and diagnosis. In addition, it carries out alarm prognosis to warn the operator of process abnormalities. Clean alarm pictures that have no information overlapping are generated from multiple activated alarms at the alarm filtering stage. The meta rules for dynamic filtering were established on the basis of the alarm relationship network. In the case of alarm diagnosis, the relations between alarms and abnormal states are represented by means of fuzzy relations, and the compositional inference rule of fuzzy logic is utilized to infer abnormal states from the fuzzy relations. The AFDS offers the operator related operating procedures as well as diagnostic results. At the stage of alarm prognosis, the future values of some important critical safety parameters are predicted by means of Levinson algorithm selected from the comparative experiments, and the global trends of these parameters are estimated using data smoothing and fuzzy membership. This information enables early failure detection and is also used to supplement diagnostic symptoms.

  18. Precision powder feeder

    DOEpatents

    Schlienger, M. Eric; Schmale, David T.; Oliver, Michael S.

    2001-07-10

    A new class of precision powder feeders is disclosed. These feeders provide a precision flow of a wide range of powdered materials, while remaining robust against jamming or damage. These feeders can be precisely controlled by feedback mechanisms.

  19. An embedded telecommunication cable auto-locating system of guard against theft and alarm

    NASA Astrophysics Data System (ADS)

    Li, Yan; Li, Jun; Jin, Tian-Bo; Zhang, Li-yong

    2005-12-01

    This system adopted two-level structure that was composed of Cable Monitoring And Controlling Device (CMCD) and Cable Monitoring Center (CMC). CMC receives the alarm data via the MODEM and the telephone net. In this way, the functions of typing the fault point's map, alarming and the cable management can be picked up. CMCD takes the processor chip Atemega128 as the center of the system that adopted the alternating current and direct current on-line switching electricity-supply mode. Also, the system includes four groups of independent power, the relay and the optical isolation to separate the system from the monitoring cable and the telephone net. CMCD accomplishes the cable real-time monitoring, malfunctions auto-locating, telephone voice alarming, long-distance parameters modification, data up-loading, error verifying and the telecommunication room's environment monitoring and so on. The longest distance of monitoring cable is 20 km, and the precision is 1%.

  20. Compact and large depth of field image scanner for auto document feeder with compound eye system

    NASA Astrophysics Data System (ADS)

    Kawano, Hiroyuki; Okamoto, Tatsuki; Matsuzawa, Taku; Nakajima, Hajime; Makita, Junko; Toyoda, Yoshitaka; Funakura, Tetsuo; Nakanishi, Takahito; Kunieda, Tatsuya; Minobe, Tadashi

    2013-03-01

    We designed a compact and large depth of field image scanner targeted for auto document feeders (ADF) by using a compound eye system design with plural optical units in which the ray paths are folded by a reflective optics. Though we have previously proposed the principle concept, we advance the design using a free-form surface mirror to reduce the F-number for less illumination energy and to shrink its optical track width to 40 mm. We achieved large depth of field (DOF) of 1.2 mm, defined as a range exceeding 30% modulation transfer function (MTF) at 300 dpi, which is about twice as large as a conventional gradient index (GRIN) lens array contact image sensor (CIS). The aperture stop has a rectangular-shaped aperture, where one side length is as large as 4.0mm for collecting much light, and another side length is as small as 1.88mm for avoiding interference of folded ray paths.

  1. Optimization of culture conditions for an efficient xeno-feeder free limbal cell culture system towards ocular surface regeneration.

    PubMed

    Varghese, Viji Mary; Prasad, Tilak; Kumary, T V

    2010-10-01

    Ex vivo expansion of limbal stem cells from a small biopsy and its subsequent transplantation is the golden choice of treatment for limbal stem cell deficiency. Use of murine 3T3 feeder layer is a prerequisite for this ex vivo expansion. There is an ever-increasing demand for feeder free cultures to avoid xenotoxicity and transmission of xeno-diseases to human system. This study was aimed to establish an efficient xeno-feeder free limbal culture system towards ocular surface regeneration. To study the effect of initial dispase treatment and culture system used, migratory distance of cells from explants was analyzed from phase contrast images using "interactive measurements" of Qwin software (Leica). Expression of p63 in different culture systems was studied by immunofluorescent staining, followed by quantitative confocal microscopy (Carl Zeiss). Results showed dispase treatment was not necessary for establishing limbal explant culture. A combination of Iscove's modified Dulbecco's medium and Panserin 801 resulted in formation of autofeeder layer with maintenance of progenitor characteristics, thus mimicking natural tissue architecture. Further analysis of this culture system showed that cells could be cultured till confluency. Immunofluorescent staining of ABCG2 revealed presence of stem cell marker in the confluent cell layer. Scanning Electron Micrographs demonstrated homogenous population of tightly packed cells in this culture system. Replacement of bovine serum with autologous serum did not affect morphology or growth of cells in this culture system. This study will be a major step in the development of xeno-feeder free epithelial equivalents towards ocular surface reconstruction. PMID:20196106

  2. Effects of Home Energy Management Systems on Distribution Utilities and Feeders Under Various Market Structure; NREL (National Renewable Energy Laboratory)

    SciTech Connect

    Ruth, M.; Pratt, A.; Lunacek, M.; Mittal, S.; Wu, H.; Jones, W.

    2015-06-15

    The combination of distributed energy resources (DER) and retail tariff structures to provide benefits to both utility consumers and the utilities is not well understood. To improve understanding, an Integrated Energy System Model (IESM) is being developed to simulate the physical and economic aspects of DER technologies, the buildings where they reside, and feeders servicing them. The IESM was used to simulate 20 houses with home energy management systems on a single feeder under a time-of-use (TOU) tariff to estimate economic and physical impacts on both the households and the distribution utilities. Home energy management systems (HEMS) reduce consumers’ electric bills by precooling houses in the hours before peak electricity pricing. Utilization of HEMS reduce peak loads during high price hours but shifts it to hours with off-peak and shoulder prices, resulting in a higher peak load. used to simulate 20 houses with home energy management systems on a single feeder under a time-of-use (TOU) tariff to estimate economic and physical impacts on both the households and the distribution utilities. Home energy management systems (HEMS) reduce consumers’ electric bills by precooling houses in the hours before peak electricity pricing. Utilization of HEMS reduce peak loads during high price hours but shifts it to hours with off-peak and shoulder prices, resulting in a higher peak load.

  3. Photovoltaics support distribution feeder

    SciTech Connect

    Barker, P.P.; Bailey, B.; Peterson, A.J. Jr.

    1997-03-01

    The concept of supporting the transmission and distribution (T&D) system with a photovoltaic (PV) distributed energy source has gained increasing attention as the cost of PV energy has declined. Locating a PV system at a strategic point on the distribution feeder can enhance the overall T&D system performance and provide a source of renewable power generation. In such applications, the PV system peak output ranges from a few percent up to about 20 percent of the peak feeder load. A good example of one such project on a line supplied by the Pacific Gas & Electric Co.`s Kerman Substation near Fresno, California. Given the success of this and other projects, Niagara Mohawk Power Corp. (NMPC) will be testing a 100 kW ac output system interconnected with a 13.2 kV distribution feeder to demonstrate PV T&D support concepts in its service territory. The demonstration system construction and operation is to be funded by NMPC, Utility Photovoltaics Group (UPVG) and New York State Energy Research and Development Authority (NYSERDA). AWS Scientific will manage the site construction and be responsible for maintaining, operating and monitoring the performance of the system. As a prerequisite to construction of the system, the NMPC research and development department funded AWS Scientific Inc. (Albany, N.Y.) and Power Technologies Inc. (Schenectady, N.Y.) to investigate the use of PV energy for T&D support applications on its system. The study involved reviewing a large number of distribution circuits throughout NMPC`s service territory to find candidate locations for the 100 kW demonstration project. A key focus of the study was to find a feeder whereby the injection of PV energy provided maximum dispersed generation benefits.

  4. 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

  5. FOOD POWDER DELIVERY THROUGH A FEEDER SYSTEM:EFFECT OF PHYSICO-CHEMICAL PROPERTIES

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A regression analysis was undertaken to determine how to quantitatively integrate the effects of powder physico-chemical properties on delivery through a twin screw feeder. This understanding allows snack manufacturers to reliably control the flow of ingredients, including whey proteins, into their...

  6. 33 CFR 149.135 - What should be marked on the cargo transfer system alarm switch?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false What should be marked on the cargo transfer system alarm switch? 149.135 Section 149.135 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) DEEPWATER PORTS DEEPWATER PORTS: DESIGN, CONSTRUCTION, AND EQUIPMENT Pollution Prevention Equipment §...

  7. CSER 95-003: Exemption from Criticality Alarm System requirement for 232-Z building

    SciTech Connect

    Nirider, L.T.; Miller, E.M.

    1995-05-18

    This CSER establishes an exemption for 232-Z from the requirement for a Criticality Alarm System, because the formation of a critical configuration is not a credible event for any circumstance involving the cleaning out and removal of the Burning Hood and associated equipment.

  8. 46 CFR 154.1330 - Liquid level alarm system: Independent tank type C.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Liquid level alarm system: Independent tank type C. 154.1330 Section 154.1330 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Design, Construction and Equipment Instrumentation...

  9. 46 CFR 154.1325 - Liquid level alarm system: All cargo tanks.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Liquid level alarm system: All cargo tanks. 154.1325 Section 154.1325 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Design, Construction and Equipment Instrumentation §...

  10. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...: (1) Either complies with 46 CFR 108.405 or (2) Is designed and installed in compliance with a national consensus standard, as that term is defined in 29 CFR 1910.2, for fire detection and fire alarm... is defined in 29 CFR 1910.7, for such systems or hardware. (b) Sleeping quarters must be fitted...

  11. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...: (1) Either complies with 46 CFR 108.405 or (2) Is designed and installed in compliance with a national consensus standard, as that term is defined in 29 CFR 1910.2, for fire detection and fire alarm... is defined in 29 CFR 1910.7, for such systems or hardware. (b) Sleeping quarters must be fitted...

  12. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...: (1) Either complies with 46 CFR 108.405 or (2) Is designed and installed in compliance with a national consensus standard, as that term is defined in 29 CFR 1910.2, for fire detection and fire alarm... is defined in 29 CFR 1910.7, for such systems or hardware. (b) Sleeping quarters must be fitted...

  13. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...: (1) Either complies with 46 CFR 108.405 or (2) Is designed and installed in compliance with a national consensus standard, as that term is defined in 29 CFR 1910.2, for fire detection and fire alarm... is defined in 29 CFR 1910.7, for such systems or hardware. (b) Sleeping quarters must be fitted...

  14. 33 CFR 149.414 - What are the requirements for a fire detection and alarm system?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...: (1) Either complies with 46 CFR 108.405 or (2) Is designed and installed in compliance with a national consensus standard, as that term is defined in 29 CFR 1910.2, for fire detection and fire alarm... is defined in 29 CFR 1910.7, for such systems or hardware. (b) Sleeping quarters must be fitted...

  15. 46 CFR 58.25-25 - Indicating and alarm systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING MAIN AND AUXILIARY... the pilothouse upon— (1) Failure of the electric power to the control system of any steering gear; (2... oil reservoir of a hydraulic, power-operated steering-gear system. (e) An audible and a visible...

  16. 46 CFR 28.240 - General alarm system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.240 General... thereafter. (f) A public address system or other means of alerting all individuals on board may be used...

  17. 46 CFR 28.240 - General alarm system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.240 General... thereafter. (f) A public address system or other means of alerting all individuals on board may be used...

  18. 46 CFR 28.240 - General alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.240 General... thereafter. (f) A public address system or other means of alerting all individuals on board may be used...

  19. 46 CFR 28.240 - General alarm system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.240 General... thereafter. (f) A public address system or other means of alerting all individuals on board may be used...

  20. 46 CFR 28.240 - General alarm system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Than 16 Individuals On Board, or for Fish Tender Vessels Engaged in the Aleutian Trade § 28.240 General... thereafter. (f) A public address system or other means of alerting all individuals on board may be used...

  1. 78 FR 2683 - Carriage Standards for Bridge Navigational Watch Alarm Systems (BNWAS) Aboard U.S. Flagged Vessels

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-14

    ... SECURITY Coast Guard Carriage Standards for Bridge Navigational Watch Alarm Systems (BNWAS) Aboard U.S... Guard announces the implementation date of carriage standards for Bridge Navigational Watch Alarm Systems (BNWAS), in accordance with the Articles of the International Convention for the Safety of Life...

  2. Neural Network Target Identification System for False Alarm Reduction

    NASA Technical Reports Server (NTRS)

    Ye, David; Edens, Weston; Lu, Thomas T.; Chao, Tien-Hsin

    2009-01-01

    A multi-stage automated target recognition (ATR) system has been designed to perform computer vision tasks with adequate proficiency in mimicking human vision. The system is able to detect, identify, and track targets of interest. Potential regions of interest (ROIs) are first identified by the detection stage using an Optimum Trade-off Maximum Average Correlation Height (OT-MACH) filter combined with a wavelet transform. False positives are then eliminated by the verification stage using feature extraction methods in conjunction with neural networks. Feature extraction transforms the ROIs using filtering and binning algorithms to create feature vectors. A feed forward back propagation neural network (NN) is then trained to classify each feature vector and remove false positives. This paper discusses the test of the system performance and parameter optimizations process which adapts the system to various targets and datasets. The test results show that the system was successful in substantially reducing the false positive rate when tested on a sonar image dataset.

  3. Applying an integrated neuro-expert system model in a real-time alarm processing system

    NASA Astrophysics Data System (ADS)

    Khosla, Rajiv; Dillon, Tharam S.

    1993-03-01

    In this paper we propose an integrated model which is derived from the combination of a generic neuro-expert system model, an object model, and unix operating system process (UOSP) model. This integrated model reflects the strengths of both artificial neural nets (ANNs) and expert systems (ESs). A formalism of ES object, ANN object, UOSP object, and problem domain object is used for developing a set of generic data structures and methods. These generic data structures and methods help us to build heterogeneous ES-ANN objects with uniform communication interface. The integrated model is applied in a real-time alarm processing system for a non-trivial terminal power station. It is shown how features like hierarchical/distributed ES/ANN objects, inter process communication, and fast concurrent execution help to cope with real-time system constraints like, continuity, data variability, and fast response time.

  4. Silent emergency alarm system for schools and the like

    NASA Technical Reports Server (NTRS)

    Read, W. S.; Roberts, V. W. (Inventor)

    1973-01-01

    An emergency alert system is described. In a school each classroom (or other area) is instrumented with a hidden microphone and receiver tuned to a non-audible frequency. The receivers' outputs are connected to a central display unit in the school's administrative office. Each instructor is provided with a small concealable transmitter which, when hand activated by the instructor upon the occurrance of any emergency, generates a non-audible signal at the receiver's tuned frequency.

  5. 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

  6. Multiple-Parameter, Low-False-Alarm Fire-Detection Systems

    NASA Technical Reports Server (NTRS)

    Hunter, Gary W.; Greensburg, Paul; McKnight, Robert; Xu, Jennifer C.; Liu, C. C.; Dutta, Prabir; Makel, Darby; Blake, D.; Sue-Antillio, Jill

    2007-01-01

    Fire-detection systems incorporating multiple sensors that measure multiple parameters are being developed for use in storage depots, cargo bays of ships and aircraft, and other locations not amenable to frequent, direct visual inspection. These systems are intended to improve upon conventional smoke detectors, now used in such locations, that reliably detect fires but also frequently generate false alarms: for example, conventional smoke detectors based on the blockage of light by smoke particles are also affected by dust particles and water droplets and, thus, are often susceptible to false alarms. In contrast, by utilizing multiple parameters associated with fires, i.e. not only obscuration by smoke particles but also concentrations of multiple chemical species that are commonly generated in combustion, false alarms can be significantly decreased while still detecting fires as reliably as older smoke-detector systems do. The present development includes fabrication of sensors that have, variously, micrometer- or nanometer-sized features so that such multiple sensors can be integrated into arrays that have sizes, weights, and power demands smaller than those of older macroscopic sensors. The sensors include resistors, electrochemical cells, and Schottky diodes that exhibit different sensitivities to the various airborne chemicals of interest. In a system of this type, the sensor readings are digitized and processed by advanced signal-processing hardware and software to extract such chemical indications of fires as abnormally high concentrations of CO and CO2, possibly in combination with H2 and/or hydrocarbons. The system also includes a microelectromechanical systems (MEMS)-based particle detector and classifier device to increase the reliability of measurements of chemical species and particulates. In parallel research, software for modeling the evolution of a fire within an aircraft cargo bay has been developed. The model implemented in the software can

  7. The Performance of Earthworm Based Earthquake Alarm Reporting System in Taiwan

    NASA Astrophysics Data System (ADS)

    Chen, Ta-Yi; Hsiao, Nai-Chi; Wu, Yih-Min

    2016-04-01

    The Central Weather Bureau of Taiwan has operated an earthquake early warning (EEW) system and issued warnings to schools and government agencies since 2014. Because the real-time seismic data streams are integrated by the Earthworm software, some EEW modules were created under the Earthworm platform. The system is named Earthworm Based Earthquake Alarm Reporting (eBEAR) system, which is currently operating. The eBEAR system consists of new Earthworm modules for managing P-wave phase picking, trigger associations, hypocenter locations, magnitude estimations, and alert filtering prior to broadcasting. Here, we outline the methodology and performance of the eBEAR system. The online performance of the eBEAR system indicated that the average reporting times afforded by the system are approximately 15 and 26 s for inland and offshore earthquakes, respectively. Comparing to the earthquake catalog, the difference of the epicenters are less than 10 km for inland earthquakes; the difference of the magnitude are about 0.3. No false alarms generated by the system, but there were three false alarms issued by human. Due to the wrong operations, the EEW information created by off-line test were sent. However, we have learned from it and improved the standard operation procedure in the EEW system.

  8. 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

  9. Functional relationship-based alarm processing

    DOEpatents

    Corsberg, D.R.

    1987-04-13

    A functional relationship-based alarm processing system and method analyzes each alarm as it is activated and determines its relative importance with other currently activated alarms and signals in accordance with the relationships that the newly activated alarm has with other currently activated alarms. Once the initial level of importance of the alarm has been determined, that alarm is again evaluated if another related alarm is activated. Thus, each alarm's importance is continuously updated as the state of the process changes during a scenario. Four hierarchical relationships are defined by this alarm filtering methodology: (1) level precursor (usually occurs when there are two alarm settings on the same parameter); (2) direct precursor (based on causal factors between two alarms); (3) required action (system response or action expected within a specified time following activation of an alarm or combination of alarms and process signals); and (4) blocking condition (alarms that are normally expected and are not considered important). 11 figs.

  10. Design of DroDeASys (Drowsy Detection and Alarming System)

    NASA Astrophysics Data System (ADS)

    Juvale, Hrishikesh B.; Mahajan, Anant S.; Bhagwat, Ashwin A.; Badiger, Vishal T.; Bhutkar, Ganesh D.; Dhabe, Priyadarshan S.; Dhore, Manikrao L.

    The paper discusses the Drowsy Detection & Alarming System that has been developed, using a non-intrusive approach. The system is basically developed to detect drivers dozing at the wheel at night time driving. The system uses a small infra-red night vision camera that points directly towards the driver`s face and monitors the driver`s eyes in order to detect fatigue. In such a case when fatigue is detected, a warning signal is issued to alert the driver. This paper discusses the algorithms that have been used to detect drowsiness. The decision whether the driver is dozing or not is taken depending on whether the eyes are open for a specific number of frames. If the eyes are found to be closed for a certain number of consecutive frames then the driver is alerted with an alarm.

  11. Visual display and alarm system for wind tunnel static and dynamic loads

    NASA Technical Reports Server (NTRS)

    Hanly, Richard D.; Fogarty, James T.

    1987-01-01

    A wind tunnel balance monitor and alarm system developed at NASA Ames Research Center will produce several beneficial results. The costs of wind tunnel delays because of inadvertent balance damage and the costs of balance repair or replacement can be greatly reduced or eliminated with better real-time information on the balance static and dynamic loading. The wind tunnel itself will have enhanced utility with the elimination of overly cautious limits on test conditions. The microprocessor-based system features automatic scaling and 16 multicolored LED bargraphs to indicate both static and dynamic components of the signals from eight individual channels. Five individually programmable alarm levels are available with relay closures for internal or external visual and audible warning devices and other functions such as automatic activation of external recording devices, model positioning mechanism, or tunnel shutdown.

  12. Visual display and alarm system for wind tunnel static and dynamic loads

    NASA Technical Reports Server (NTRS)

    Hanly, Richard D.; Fogarty, James T.

    1987-01-01

    A wind tunnel balance monitor and alarm system developed at NASA Ames Research Center will produce several beneficial results. The costs of wind tunnel delays because of inadvertent balance damage and the costs of balance repair or replacement can be greatly reduced or eliminated with better real-time information on the balance static and dynamic loading. The wind tunnel itself will have enhanced utility with the elimination of overly cautious limits on test conditions. The microprocessor-based system features automatic scaling and 16 multicolored LED bargraphs to indicate both static and dynamic components of the signals from eight individual channels. Five individually programmable alarm levels are available with relay closures for internal or external visual and audible warning devices and other functions such as automatic activation of external recording devices, model positioning mechanisms, or tunnel shutdown.

  13. Development of a criticality alarm system neutron detector: Final project report

    SciTech Connect

    O'Dell, A.A.

    1989-05-01

    The primary objective of this project was to develop a prototype neutron detector for use in criticality alarm systems (CASs) at US Department of Energy (DOE) and contractor facilities wherever significant amounts of fissile material are processed or stored. Constraints placed on the design of the detector were that the overall size of the detector was to be as small as practical, the input voltage requirements were to be no more than 24 V, and that the gamma sensitivity would be as low as possible. Also, the detector should give dosimetric neutron response, and should have sufficient temporal capabilities to measure the entire range from fast (>1 ms) to slow (seconds to minutes) excursions, and sufficient dynamic range to measure from background to over 100 times background levels to insure proper activation of the Immediate Evacuation Alarm (IEA). Finally, the detector should insure rapid (<1 s) activation of the IEA in the event of a criticality excursion. 24 figs., 11 tabs.

  14. 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

  15. Development of a Xeno-Free Feeder-Layer System from Human Umbilical Cord Mesenchymal Stem Cells for Prolonged Expansion of Human Induced Pluripotent Stem Cells in Culture

    PubMed Central

    Zou, Qing; Wu, Mingjun; Zhong, Liwu; Fan, Zhaoxin; Zhang, Bo; Chen, Qiang; Ma, Feng

    2016-01-01

    Various feeder layers have been extensively applied to support the prolonged growth of human pluripotent stem cells (hPSCs) for in vitro cultures. Among them, mouse embryonic fibroblast (MEF) and mouse fibroblast cell line (SNL) are most commonly used feeder cells for hPSCs culture. However, these feeder layers from animal usually cause immunogenic contaminations, which compromises the potential of hPSCs in clinical applications. In the present study, we tested human umbilical cord mesenchymal stem cells (hUC-MSCs) as a potent xeno-free feeder system for maintaining human induced pluripotent stem cells (hiPSCs). The hUC-MSCs showed characteristics of MSCs in xeno-free culture condition. On the mitomycin-treated hUC-MSCs feeder, hiPSCs maintained the features of undifferentiated human embryonic stem cells (hESCs), such as low efficiency of spontaneous differentiation, stable expression of stemness markers, maintenance of normal karyotypes, in vitro pluripotency and in vivo ability to form teratomas, even after a prolonged culture of more than 30 passages. Our study indicates that the xeno-free culture system may be a good candidate for growth and expansion of hiPSCs as the stepping stone for stem cell research to further develop better and safer stem cells. PMID:26882313

  16. Coal gasification: New challenge for the Beaumont rotary feeder

    NASA Technical Reports Server (NTRS)

    Stelian, J.

    1977-01-01

    The use of rotary feeders in the coal gasification process is described with emphasis on the efficient conversion of coal to clean gaseous fuels. Commercial applications of the rotary feeder system are summarized.

  17. Feeder pipes - Expression of the uppermost plumbing system in Oligocene methane-seep deposits, Washington State, USA

    NASA Astrophysics Data System (ADS)

    Zwicker, Jennifer; Smrzka, Daniel; Gier, Susanne; Goedert, James; Peckmann, Jörn

    2015-04-01

    Plumbing systems of methane seeps are complex pathways along which hydrocarbon-rich fluids migrate upward through the marine sedimentary column. Seeps commonly maintain fluid flow over long periods of time, providing a steady supply of methane to shallow sediments and the water column. At greater sediment depths, fluid transport is facilitated by faults and conduits, which enable migration of fluids sourced from deep hydrocarbon reservoirs. In the shallow subsurface, plumbing systems may become successively filled by authigenic carbonates, whose precipitation is partly triggered by sulfate-dependent anaerobic oxidation of methane (AOM). To expand our knowledge on the uppermost plumbing network of ancient seeps, this work investigates fluid conduits that were mineralized by a distinct succession of authigenic mineral phases. These mineralized conduits, which occur below an Oligocene seep deposit from the Lincoln Creek Formation in Washington State, are referred to as feeder pipes here. The concentrically-zoned feeder pipes are 2 to 3 cm in diameter. The mineral phase that formed first is matrix micrite, making up the outer part of pipes. Toward the center, pipes are filled by clear, banded and botryoidal aragonite cement, which is intercalated with yellow aragonite cement. The innermost portions of the pipes are filled by either pipe-filling micrite, microspar, or brownish calcite. The observed paragenetic sequences archive successions of various biogeochemical processes. Clear and yellow aragonite cements are distinctly depleted in 13C, revealing that their formation was favored by AOM. In contrast, later phases including brownish calcite and microspar are enriched in 13C, pointing to precipitation from fluids affected by methanogenesis. Their size and morphology indicate that the pipes were initially produced by seep-dwelling, burrowing organisms. The burrows subsequently acted as preferred fluid pathways. Possible producers of the burrows include various bivalves

  18. Monitor alarm fatigue: an integrative review.

    PubMed

    Cvach, Maria

    2012-01-01

    Alarm fatigue is a national problem and the number one medical device technology hazard in 2012. The problem of alarm desensitization is multifaceted and related to a high false alarm rate, poor positive predictive value, lack of alarm standardization, and the number of alarming medical devices in hospitals today. This integrative review synthesizes research and non-research findings published between 1/1/2000 and 10/1/2011 using The Johns Hopkins Nursing Evidence-Based Practice model. Seventy-two articles were included. Research evidence was organized into five main themes: excessive alarms and effects on staff; nurse's response to alarms; alarm sounds and audibility; technology to reduce false alarms; and alarm notification systems. Non-research evidence was divided into two main themes: strategies to reduce alarm desensitization, and alarm priority and notification systems. Evidence-based practice recommendations and gaps in research are summarized. PMID:22839984

  19. An attributable cost model for a telecare system using advanced community alarms.

    PubMed

    Brownsell, S J; Bradley, D A; Bragg, R; Catling, P; Carlier, J

    2001-01-01

    We have developed an attributable cost model for a city-based telecare scheme involving 11,618 community alarm users. The equipment was assumed to cost 500 Pounds-1000 Pounds per installation, compared with 175 Pounds for the current system. Because of the significant additional capital cost of the proposed system, it would be necessary to borrow to finance it. For example, if the home equipment cost 500 Pounds per unit, an additional 2.2 million Pounds would be required. Nonetheless, it would be possible to achieve a return on the investment after 10 years. The principal savings would arise from reduced hospital bed costs and reduced residential care. The model suggests that the financial benefits of the proposed system would occur in the ratio of 4% to the local authority housing department, 43% to the National Health Service and 53% to the residential care provider. PMID:11331043

  20. An RFID Based Smart Feeder for Hummingbirds

    PubMed Central

    Ibarra, Vicente; Araya-Salas, Marcelo; Tang, Yu-ping; Park, Charlie; Hyde, Anthony; Wright, Timothy F.; Tang, Wei

    2015-01-01

    We present an interdisciplinary effort to record feeding behaviors and control the diet of a hummingbird species (Phaethornis longirostris, the long-billed hermit or LBH) by developing a Radio Frequency Identification (RFID) based smart feeder. The system contains an RFID reader, a microcontroller, and a servo-controlled hummingbird feeder opener; the system is presented as a tool for studying the cognitive ability of the LBH species. When equipped with glass capsule RFID tags (which are mounted on the hummingbird), the smart feeder can provide specific diets for predetermined sets of hummingbirds at the discretion of biologists. This is done by reading the unique RFID tag on the hummingbirds and comparing the ID number with the pre-programmed ID numbers stored in the smart feeder. The smart feeder records the time and ID of each hummingbird visit. The system data is stored in a readily available SD card and is powered by two 9 V batteries. The detection range of the system is approximately 9–11 cm. Using this system, biologists can assign the wild hummingbirds to different experimental groups and monitor their diets to determine if they develop a preference to any of the available nectars. During field testing, the smart feeder system has demonstrated consistent detection (when compared to detections observed by video-recordings) of RFID tags on hummingbirds and provides pre-designed nectars varying water and sugar concentrations to target individuals. The smart feeder can be applied to other biological and environmental studies in the future. PMID:26694402

  1. An RFID Based Smart Feeder for Hummingbirds.

    PubMed

    Ibarra, Vicente; Araya-Salas, Marcelo; Tang, Yu-ping; Park, Charlie; Hyde, Anthony; Wright, Timothy F; Tang, Wei

    2015-01-01

    We present an interdisciplinary effort to record feeding behaviors and control the diet of a hummingbird species (Phaethornis longirostris, the long-billed hermit or LBH) by developing a Radio Frequency Identification (RFID) based smart feeder. The system contains an RFID reader, a microcontroller, and a servo-controlled hummingbird feeder opener; the system is presented as a tool for studying the cognitive ability of the LBH species. When equipped with glass capsule RFID tags (which are mounted on the hummingbird), the smart feeder can provide specific diets for predetermined sets of hummingbirds at the discretion of biologists. This is done by reading the unique RFID tag on the hummingbirds and comparing the ID number with the pre-programmed ID numbers stored in the smart feeder. The smart feeder records the time and ID of each hummingbird visit. The system data is stored in a readily available SD card and is powered by two 9 V batteries. The detection range of the system is approximately 9-11 cm. Using this system, biologists can assign the wild hummingbirds to different experimental groups and monitor their diets to determine if they develop a preference to any of the available nectars. During field testing, the smart feeder system has demonstrated consistent detection (when compared to detections observed by video-recordings) of RFID tags on hummingbirds and provides pre-designed nectars varying water and sugar concentrations to target individuals. The smart feeder can be applied to other biological and environmental studies in the future. PMID:26694402

  2. Three-Alarm System: Revisited to treat Thumb-sucking Habit

    PubMed Central

    Shetty, Manoj; Shetty, N Shridhar; Deoghare, Anushka

    2015-01-01

    ABSTRACT Thumb and digit-sucking habits or non-nutritive sucking are considered to be the most prevalent among oral habits. Most children stop thumb sucking on their own. If the habit continues beyond 3 to 4 years of age, it not only affects the dental occlusion, but the shape of the thumb/digit may be altered as well. This article presents the management of thumb sucking by modified RURS, elbow guard incorporated with revised ‘three-alarm’ system. How to cite this article: Shetty RM, Shetty M, Shetty NS, Deoghare A. Three-Alarm System: Revisited to treat Thumb-sucking Habit. Int J Clin Pediatr Dent 2015;8(1):82-86. PMID:26124588

  3. Design and validation of an intelligent patient monitoring and alarm system based on a fuzzy logic process model.

    PubMed

    Becker, K; Thull, B; Käsmacher-Leidinger, H; Stemmer, J; Rau, G; Kalff, G; Zimmermann, H J

    1997-09-01

    The process of patient care performed by an anaesthesiologist during high invasive surgery requires fundamental knowledge of the physiologic processes and a long standing experience in patient management to cope with the inter-individual variability of the patients. Biomedical engineering research improves the patient monitoring task by providing technical devices to measure a large number of a patient's vital parameters. These measurements improve the safety of the patient during the surgical procedure, because pathological states can be recognised earlier, but may also lead to an increased cognitive load of the physician. In order to reduce cognitive strain and to support intra-operative monitoring for the anaesthesiologist an intelligent patient monitoring and alarm system has been proposed and implemented which evaluates a patient's haemodynamic state on the basis of a current vital parameter constellation with a knowledge-based approach. In this paper general design aspects and evaluation of the intelligent patient monitoring and alarm system in the operating theatre are described. The validation of the inference engine of the intelligent patient monitoring and alarm system was performed in two steps. Firstly, the knowledge base was validated with real patient data which was acquired online in the operating theatre. Secondly, a research prototype of the whole system was implemented in the operating theatre. In the first step, the anaesthetists were asked to enter a state variable evaluation before a drug application or any other intervention on the patient into a recording system. These state variable evaluations were compared to those generated by the intelligent alarm system on the same vital parameter constellations. Altogether 641 state variable evaluations were entered by six different physicians. In total, the sensitivity of alarm recognition is 99.3%, the specificity is 66% and the predictability is 45%. The second step was performed using a research

  4. Dynamic analysis for the global performance of an SPM-feeder-cage system under waves and currents

    NASA Astrophysics Data System (ADS)

    Cifuentes, Cristian; Kim, M. H.

    2015-06-01

    In the present study, the dynamic response of a coupled SPM-feeder-cage system under irregular waves and shear currents is analyzed. A numerical model is developed by using the commercial software OrcaFlex. Hydrodynamics coefficients of the vessel are calculated by using a 3D diffraction/radiation panel program. First- and second-order wave forces are included in the calculations. Morison equation is used to compute the drag force on line elements representing the net. Drag coefficients are determined at every time step in the simulation considering the relative normal velocity between the structural elements and the fluid flow. The dynamic response of the coupled system is analyzed for various environments and net materials. The results of the study show the effects of solidity ratio of the net and vertical positions of the cage on the overall dynamic response of the system, confirming the viability of this type of configuration for future development of offshore aquaculture in deep waters.

  5. 95. VIEW OF ZINC FEEDER FROM SOUTHEAST. NOTE FEEDER CONE ...

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

    95. VIEW OF ZINC FEEDER FROM SOUTHEAST. NOTE FEEDER CONE AND PIPING FROM VACUUM RECEIVER ON LEFT. PRECIPITATE PUMP MOTOR MOUNT VISIBLE BELOW FEEDER STAIRS, PUMP AND MOTOR MISSING. SUMPS ARE LOCATED UNDER THIS FLOOR, WITH ACCESS TO HATCH TO THE RIGHT OF FEEDER STAIR. - Bald Mountain Gold Mill, Nevada Gulch at head of False Bottom Creek, Lead, Lawrence County, SD

  6. Evidence of a suffocation alarm system within the periaqueductal gray matter of the rat.

    PubMed

    Schimitel, F G; de Almeida, G M; Pitol, D N; Armini, R S; Tufik, S; Schenberg, L C

    2012-01-01

    Dyspnea, hunger for air, and urge to flee are the cardinal symptoms of panic attacks. Patients also show baseline respiratory abnormalities and a higher rate of comorbid and antecedent respiratory diseases. Panic attacks are also precipitated by infusion of sodium lactate and inhalation of 5% CO₂ in predisposed patients but not in healthy volunteers or patients without panic disorder. Accordingly, Klein [Klein (1993) Arch Gen Psychiatry 50:306-317] suggested that clinical panic is the misfiring of an as-yet-unidentified suffocation alarm system. In rats, selective anoxia of chemoreceptor cells by potassium cyanide (KCN) and electrical and chemical stimulations of periaqueductal gray matter (PAG) produce defensive behaviors, which resemble panic attacks. Thus, here we examined the effects of single or combined administrations of CO₂ (8% and 13%) and KCN (10-80 μg, i.v.) on spontaneous and PAG-evoked behaviors of rats either intact or bearing electrolytic lesions of PAG. Exposure to CO₂ alone reduced grooming while increased exophthalmus, suggesting an arousal response to non-visual cues of environment. Unexpectedly, however, CO₂ attenuated PAG-evoked immobility, trotting, and galloping while facilitated defecation and micturition. Conversely, KCN produced all defensive behaviors of the rat and facilitated PAG-evoked trotting, galloping, and defecation. There were also facilitatory trends in PAG-evoked exophthalmus, immobility, and jumping. Moreover, whereas the KCN-evoked defensive behaviors were attenuated or even suppressed by discrete lesions of PAG, they were markedly facilitated by CO₂. Authors suggest that the PAG harbors an anoxia-sensitive suffocation alarm system which activation precipitates panic attacks and potentiates the subject responses to hypercapnia. PMID:22062132

  7. Functional relationship-based alarm processing

    DOEpatents

    Corsberg, Daniel R.

    1988-01-01

    A functional relationship-based alarm processing system and method analyzes each alarm as it is activated and determines its relative importance with other currently activated alarms and signals in accordance with the relationships that the newly activated alarm has with other currently activated alarms. Once the initial level of importance of the alarm has been determined, that alarm is again evaluated if another related alarm is activated. Thus, each alarm's importance is continuously oupdated as the state of the process changes during a scenario. Four hierarchical relationships are defined by this alarm filtering methodology: (1) level precursor (usually occurs when there are two alarm settings on the same parameter); (2) direct precursor (based on caussal factors between two alarms); (3) required action (system response or action) expected within a specified time following activation of an alarm or combination of alarms and process signals); and (4) blocking condition (alarms that are normally expected and are not considered important). The alarm processing system and method is sensitive to the dynamic nature of the process being monitored and is capable of changing the relative importance of each alarm as necessary.

  8. Low Spillage Metabolic Feeder

    NASA Technical Reports Server (NTRS)

    Evans, JuliAnn (Inventor); Gundo, Daniel P. (Inventor); Harper, Jennifer S. (Inventor); Mulenburg, Gerald M. (Inventor); Skundberg, Thomas L. (Inventor)

    1996-01-01

    An animal feeder for use in a metabolic cage is introduced. The feeder includes a confined passageway and an adjustable notched gate proceeding a food cup. The gate is adjusted so that the entry area to the food cup approximates the cross sectional head area of the animal. Food ejected from the food cup by a caged animal is dropped through a grate into a spill tray.

  9. The postman always rings twice: two cases of shotgun deaths associated with an unconventional home security alarm system.

    PubMed

    Asirdizer, Mahmut; Turkmen, Nursel; Akan, Okan; Yavuz, Mehmet Sunay

    2014-06-01

    Injury and death cases caused by booby traps are not common in forensic medicine practice. Besides, installation of booby traps including firearms is generally for suicidal and rarely for homicidal purposes. Although few patents were described about home security alarm system that were created by firearms in the United States, 1 sample of injury with a similar unconventional mechanism of home safety system was reported by Asirdizer and Yavuz in 2009. In the published case report, the story of an electrical technician who was invited to a summer house by the homeowner to check the home security alarm system was reported. In the so-called report, he was stated to be injured by the shotgun attached to the unconventional home security alarm system while checking the system. As a result, the homeowner was convicted of a possible intent to cause a life-threatening injury to the technician.The so-called homeowner and his wife died by the same shotgun attached to the same unconventional home security alarm system 4 years on from the first event. In the present case report, we have aimed to present the findings of the crime scene and the autopsies of these unusual 2 deaths and to discuss individual and legal factors in paving the way for the deaths of 2 people. PMID:24781392

  10. High pressure rotary piston coal feeder

    NASA Technical Reports Server (NTRS)

    Gardner, J. F.; Gencsoy, H. T.; Strimbeck, D. C.

    1977-01-01

    This feeder concept uniquely combines the functions of solids feeding, metering, and pressurization into one compact system. Success with the rotary-piston concept would provide a lower-cost alternative to lock-hopper systems. The design of the feeder is presented, with special emphasis on the difficult problem of seal design. Initial tests will be to check seal performance. Subsequent tests will evaluate solids-feeding ability.

  11. 10 CFR 34.75 - Records of alarm system and entrance control checks at permanent radiographic installations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... permanent radiographic installations. 34.75 Section 34.75 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS Recordkeeping Requirements § 34.75 Records of alarm system and entrance control checks at permanent...

  12. 10 CFR 34.75 - Records of alarm system and entrance control checks at permanent radiographic installations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... permanent radiographic installations. 34.75 Section 34.75 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS Recordkeeping Requirements § 34.75 Records of alarm system and entrance control checks at permanent...

  13. 10 CFR 34.75 - Records of alarm system and entrance control checks at permanent radiographic installations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... permanent radiographic installations. 34.75 Section 34.75 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS Recordkeeping Requirements § 34.75 Records of alarm system and entrance control checks at permanent...

  14. 10 CFR 34.75 - Records of alarm system and entrance control checks at permanent radiographic installations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... permanent radiographic installations. 34.75 Section 34.75 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS Recordkeeping Requirements § 34.75 Records of alarm system and entrance control checks at permanent...

  15. 10 CFR 34.75 - Records of alarm system and entrance control checks at permanent radiographic installations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Records of alarm system and entrance control checks at permanent radiographic installations. 34.75 Section 34.75 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS...

  16. 40 CFR 264.34 - Access to communications or alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... operation must have immediate access to an internal alarm or emergency communication device, either directly... (immediately available at the scene of operation) or a hand-held two-way radio, capable of summoning...

  17. 40 CFR 265.34 - Access to communications or alarm system.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... involved in the operation must have immediate access to an internal alarm or emergency communication device... scene of operation) or a hand-held two-way radio, capable of summoning external emergency...

  18. Removal of criticality accident alarm systems at the Y-12 Plant waste management facilities

    SciTech Connect

    Marble, R.C.; Taylor, R.G.

    1998-09-01

    This paper discusses why criticality accident alarm systems (CAASs) were installed in certain waste management buildings at the Y-12 Plant, why the plant now wants to remove them, and what steps were taken to allow the US Department of Energy (DOE) to authorize the removal of the systems. To begin with, the systems in question were installed in the mid- to late-1980s. Some of the facilities were new, and there was no operating experience with the processes. A CAAS, although expensive, is an absolute necessity where criticality accidents are credible. But, they are a superfluous and unnecessary expense in those facilities where it has been determined that a criticality accident is incredible (defined as having a probability of <1 {times} 10{sup {minus}6}/yr). The PRAs have been performed to evaluate six Y-12 Plant waste management facilities, five storage facilities, and a nondestructive analysis facility, with an additional study now being performed on the West End Treatment Facility. The results to date have shown that the probability of various criticality accident scenarios at these facilities is <1 {times} 10{sup {minus}6}/yr and that the CAASs are not needed in these facilities.

  19. Limiting resources in sessile systems: food enhances diversity and growth of suspension feeders despite available space.

    PubMed

    Svensson, Robin J; Marshall, Dustin J

    2015-03-01

    Much of our understanding of competition comes trom onservations in sessue systems, such as rainforests and marine invertebrate communities. In terrestrial systems, sessile species often compete for multiple limiting resources (i.e., space, light, and nutrients), but in marine systems, space is viewed as the primary or sole limiting resource. Competition theory, on the other hand, suggests that competition for a single limiting resource is unlikely to maintain high species diversity, but manipulative tests of competition for other resources in marine benthic systems are exceedingly rare. Here, we manipulate the availability of food for a classic system, marine sessile invertebrate communities, and investigate the effects on species diversity, abundance, and composition during early succession as well as on the growth of bryozoan populations in the field. We found the number of species to be greater, available space to be lower, and the community composition to be different in assemblages subjected to increased food availability compared to controls. Similarly, laboratory-settled bryozoans deployed into the field grew more in the presence of enhanced food. Our results suggest that food can act as a limiting resource, affecting both diversity and abundance, even when bare space is still available in hard-substratum communities. Consequently, broadening the view of resource limitation beyond solely space may increase our understanding and predictability of marine sessile systems. PMID:26236877

  20. Maximum Photovoltaic Penetration Levels on Typical Distribution Feeders: Preprint

    SciTech Connect

    Hoke, A.; Butler, R.; Hambrick, J.; Kroposki, B.

    2012-07-01

    This paper presents simulation results for a taxonomy of typical distribution feeders with various levels of photovoltaic (PV) penetration. For each of the 16 feeders simulated, the maximum PV penetration that did not result in steady-state voltage or current violation is presented for several PV location scenarios: clustered near the feeder source, clustered near the midpoint of the feeder, clustered near the end of the feeder, randomly located, and evenly distributed. In addition, the maximum level of PV is presented for single, large PV systems at each location. Maximum PV penetration was determined by requiring that feeder voltages stay within ANSI Range A and that feeder currents stay within the ranges determined by overcurrent protection devices. Simulations were run in GridLAB-D using hourly time steps over a year with randomized load profiles based on utility data and typical meteorological year weather data. For 86% of the cases simulated, maximum PV penetration was at least 30% of peak load.

  1. From feeder dykes to scoria cones: the tectonically controlled plumbing system of the Rauðhólar volcanic chain, Northern Volcanic Zone, Iceland

    NASA Astrophysics Data System (ADS)

    Friese, Nadine; Bense, Frithjof A.; Tanner, David C.; Gústafsson, Lúðvík E.; Siegesmund, Siegfried

    2013-06-01

    The Rauðhólar volcanic chain, located in the Northern Volcanic Zone of Iceland, has been variably eroded such that, in the northern part, the original scoria cones are preserved, while the central and southern parts expose their shallow feeders. The chain thus offers insight into the inner workings of the near-surface feeder system of scoria cones. The volcanic chain was mapped in 3D using GPS. The en echelon-arranged volcanic chain can be divided into three parts: The southernmost part contains only plugs and necks with a thin pyroclastic cover as well as multi-tiered lava flows. The central part combines partially eroded scoria cones, (feeder) dyke intersections, and welded scoria interbedded within rootless and clastogenic lava flows; the welded scoria is composed of different kinds of lithics and bombs. The northern part preserves almost intact, overlapping scoria cones with voluminous lapilli-sized scoriaceous deposits. The overall dyke trend is orthogonal but shows radial patterns in individual cone complexes. Feeder dykes observed to depths of about 200 m below the volcanic chain are up to 8 m thick and flare in to conduits in the uppermost 20-50 m. The exposed shallow plumbing system shows that magma pathways through the volcanic edifice are very complex with incremental, repeated intrusions. We interpret the arcuate shape to be the result of a local change in the orientation of the stress field because the Rauðhólar volcanic chain is located within a major relay structure between volcanoes on the eastern Fremrinámur rift arm and a rift extension with grabens on the western periphery.

  2. Three-dimensional model of an ultramafic feeder system to the Nikolai Greenstone mafic large igneous province, central Alaska Range

    USGS Publications Warehouse

    Glen, J.M.G.; Schmidt, J.M.; Connard, G.G.

    2011-01-01

    The Amphitheater Mountains and southern central Alaska Range expose a thick sequence of Triassic Nikolai basalts that is underlain by several mafic-ultramafic complexes, the largest and best exposed being the Fish Lake and Tangle (FL-T) mafic-ultramafic sills that flank the Amphitheater Mountains synform. Three-dimensional (3-D) modeling of gravity and magnetic data reveals details of the structure of the Amphitheater Mountains, such as the orientation and thickness of Nikolai basalts, and the geometry of the FL-T intrusions. The 3-D model (50 ?? 70 km) includes the full geographic extent of the FL-T complexes and consists of 11 layers. Layer surfaces and properties (density and magnetic susceptibility) were modified by forward and inverse methods to reduce differences between the observed and calculated gravity and magnetic grids. The model suggests that the outcropping FL-T sills are apparently connected and traceable at depth and reveals variations in thickness, shape, and orientation of the ultramafic bodies that may identify paths of magma flow. The model shows that a significant volume (2000 km3) of ultramafic material occurs in the subsurface, gradually thickening and plunging westward to depths exceeding 4 km. This deep ultramafic material is interpreted as the top of a keel or root system that supplied magma to the Nikolai lavas and controlled emplacement of related magmatic intrusions. The presence of this deep, keel-like structure, and asymmetry of the synform, supports a sag basin model for development of the Amphitheater Mountains structure and reveals that the feeders to the Nikolai are much more extensive than previously known. Copyright 2011 by the American Geophysical Union.

  3. The feeder system of the Toba supervolcano from the slab to the shallow reservoir

    NASA Astrophysics Data System (ADS)

    Koulakov, Ivan; Kasatkina, Ekaterina; Shapiro, Nikolai M.; Jaupart, Claude; Vasilevsky, Alexander; El Khrepy, Sami; Al-Arifi, Nassir; Smirnov, Sergey

    2016-07-01

    The Toba Caldera has been the site of several large explosive eruptions in the recent geological past, including the world's largest Pleistocene eruption 74,000 years ago. The major cause of this particular behaviour may be the subduction of the fluid-rich Investigator Fracture Zone directly beneath the continental crust of Sumatra and possible tear of the slab. Here we show a new seismic tomography model, which clearly reveals a complex multilevel plumbing system beneath Toba. Large amounts of volatiles originate in the subducting slab at a depth of ~150 km, migrate upward and cause active melting in the mantle wedge. The volatile-rich basic magmas accumulate at the base of the crust in a ~50,000 km3 reservoir. The overheated volatiles continue ascending through the crust and cause melting of the upper crust rocks. This leads to the formation of a shallow crustal reservoir that is directly responsible for the supereruptions.

  4. Conservatism in SRS Criticality Alarm System 12 Rad Zone Calculations - How Much is Enough?

    SciTech Connect

    Yates, K.R.

    2002-06-13

    Savannah River Site (SRS) uses two methods (i.e., Approximate Method and MCNP) of calculating the 12-rad zone. The reasons for the two-tier approach are described in Ref. 1 and 2. Lately, there have been occasions in which the use of either the Approximate Method (AM) or MCNP3 calculations indicated potential facility impacts. For example, one or both methods may indicate that a 12-rad zone extends outside of relatively thick shielding, or extends to the roof of a facility, or extends through shielding to part of a stairwell. In such cases, a criticality alarm system may have to be installed to protect workers in a small, localized area from a potential dose that is not substantially greater than 12 rad in air. But, is the potential dose really greater than 12 rad in air? A subcommittee was appointed to look into the two 12-rad zone calculation methods for the purpose of identifying items contributing to over-conservatism and under-conservatism, and to recommend a path forward.

  5. Transformation of Ground Vibration Signal for Debris-Flow Monitoring and Detection in Alarm Systems

    PubMed Central

    Abancó, Clàudia; Hürlimann, Marcel; Fritschi, Bruno; Graf, Christoph; Moya, José

    2012-01-01

    Debris flows are fast mass movements formed by a mix of water and solid materials, which occur in steep torrents, and are a source of high risks for human settlements. Geophones are widely used to detect the ground vibration induced by passing debris flows. However, the recording of geophone signals usually requires storing a huge amount of data, which leads to problems in storage capacity and power consumption. This paper presents a method to transform and simplify the signals measured by geophones. The key input parameter is the ground velocity threshold, which removes the seismic noise that is not related to debris flows. A signal conditioner was developed to implement the transformation and the ground velocity threshold was set by electrical resistors. The signal conditioner was installed at various European monitoring sites to test the method. Results show that data amount and power consumption can be greatly reduced without losing much information on the main features of the debris flows. However, the outcome stresses the importance of choosing a ground vibration threshold, which must be accurately calibrated. The transformation is also suitable to detect other rapid mass movements and to distinguish among different processes, which points to a possible implementation in alarm systems. PMID:22666064

  6. Transformation of ground vibration signal for debris-flow monitoring and detection in alarm systems.

    PubMed

    Abancó, Clàudia; Hürlimann, Marcel; Fritschi, Bruno; Graf, Christoph; Moya, José

    2012-01-01

    Debris flows are fast mass movements formed by a mix of water and solid materials, which occur in steep torrents, and are a source of high risks for human settlements. Geophones are widely used to detect the ground vibration induced by passing debris flows. However, the recording of geophone signals usually requires storing a huge amount of data, which leads to problems in storage capacity and power consumption. This paper presents a method to transform and simplify the signals measured by geophones. The key input parameter is the ground velocity threshold, which removes the seismic noise that is not related to debris flows. A signal conditioner was developed to implement the transformation and the ground velocity threshold was set by electrical resistors. The signal conditioner was installed at various European monitoring sites to test the method. Results show that data amount and power consumption can be greatly reduced without losing much information on the main features of the debris flows. However, the outcome stresses the importance of choosing a ground vibration threshold, which must be accurately calibrated. The transformation is also suitable to detect other rapid mass movements and to distinguish among different processes, which points to a possible implementation in alarm systems. PMID:22666064

  7. Bibliography for nuclear criticality accident experience, alarm systems, and emergency management

    SciTech Connect

    Putman, V.L.

    1995-09-01

    The characteristics, detection, and emergency management of nuclear criticality accidents outside reactors has been an important component of criticality safety for as long as the need for this specialized safety discipline has been recognized. The general interest and importance of such topics receives special emphasis because of the potentially lethal, albeit highly localized, effects of criticality accidents and because of heightened public and regulatory concerns for any undesirable event in nuclear and radiological fields. This bibliography lists references which are potentially applicable to or interesting for criticality alarm, detection, and warning systems; criticality accident emergency management; and their associated programs. The lists are annotated to assist bibliography users in identifying applicable: industry and regulatory guidance and requirements, with historical development information and comments; criticality accident characteristics, consequences, experiences, and responses; hazard-, risk-, or safety-analysis criteria; CAS design and qualification criteria; CAS calibration, maintenance, repair, and testing criteria; experiences of CAS designers and maintainers; criticality accident emergency management (planning, preparedness, response, and recovery) requirements and guidance; criticality accident emergency management experience, plans, and techniques; methods and tools for analysis; and additional bibliographies.

  8. The feeder system of the Toba supervolcano from the slab to the shallow reservoir

    PubMed Central

    Koulakov, Ivan; Kasatkina, Ekaterina; Shapiro, Nikolai M.; Jaupart, Claude; Vasilevsky, Alexander; El Khrepy, Sami; Al-Arifi, Nassir; Smirnov, Sergey

    2016-01-01

    The Toba Caldera has been the site of several large explosive eruptions in the recent geological past, including the world's largest Pleistocene eruption 74,000 years ago. The major cause of this particular behaviour may be the subduction of the fluid-rich Investigator Fracture Zone directly beneath the continental crust of Sumatra and possible tear of the slab. Here we show a new seismic tomography model, which clearly reveals a complex multilevel plumbing system beneath Toba. Large amounts of volatiles originate in the subducting slab at a depth of ∼150 km, migrate upward and cause active melting in the mantle wedge. The volatile-rich basic magmas accumulate at the base of the crust in a ∼50,000 km3 reservoir. The overheated volatiles continue ascending through the crust and cause melting of the upper crust rocks. This leads to the formation of a shallow crustal reservoir that is directly responsible for the supereruptions. PMID:27433784

  9. The feeder system of the Toba supervolcano from the slab to the shallow reservoir.

    PubMed

    Koulakov, Ivan; Kasatkina, Ekaterina; Shapiro, Nikolai M; Jaupart, Claude; Vasilevsky, Alexander; El Khrepy, Sami; Al-Arifi, Nassir; Smirnov, Sergey

    2016-01-01

    The Toba Caldera has been the site of several large explosive eruptions in the recent geological past, including the world's largest Pleistocene eruption 74,000 years ago. The major cause of this particular behaviour may be the subduction of the fluid-rich Investigator Fracture Zone directly beneath the continental crust of Sumatra and possible tear of the slab. Here we show a new seismic tomography model, which clearly reveals a complex multilevel plumbing system beneath Toba. Large amounts of volatiles originate in the subducting slab at a depth of ∼150 km, migrate upward and cause active melting in the mantle wedge. The volatile-rich basic magmas accumulate at the base of the crust in a ∼50,000 km(3) reservoir. The overheated volatiles continue ascending through the crust and cause melting of the upper crust rocks. This leads to the formation of a shallow crustal reservoir that is directly responsible for the supereruptions. PMID:27433784

  10. A Batch Feeder for Inhomogeneous Bulk Materials

    NASA Astrophysics Data System (ADS)

    Vislov, I. S.; Kladiev, S. N.; Slobodyan, S. M.; Bogdan, A. M.

    2016-04-01

    The work includes the mechanical analysis of mechanical feeders and batchers that find application in various technological processes and industrial fields. Feeders are usually classified according to their design features into two groups: conveyor-type feeders and non-conveyor feeders. Batchers are used to batch solid bulk materials. Less frequently, they are used for liquids. In terms of a batching method, they are divided into volumetric and weighting batchers. Weighting batchers do not provide for sufficient batching accuracy. Automatic weighting batchers include a mass controlling sensor and systems for automatic material feed and automatic mass discharge control. In terms of operating principle, batchers are divided into gravitational batchers and batchers with forced feed of material using conveyors and pumps. Improved consumption of raw materials, decreased loss of materials, ease of use in automatic control systems of industrial facilities allows increasing the quality of technological processes and improve labor conditions. The batch feeder suggested by the authors is a volumetric batcher that has no comparable counterparts among conveyor-type feeders and allows solving the problem of targeted feeding of bulk material batches increasing reliability and hermeticity of the device.

  11. Talking Fire Alarms Calm Kids.

    ERIC Educational Resources Information Center

    Executive Educator, 1984

    1984-01-01

    The new microprocessor-based fire alarm systems can help to control smoke movement throughout school buildings by opening vents and doors, identify the burning section, activate voice alarms, provide firefighters with telephone systems during the fire, and release fire-preventing gas. (KS)

  12. Dry piston coal feeder

    DOEpatents

    Hathaway, Thomas J.; Bell, Jr., Harold S.

    1979-01-01

    This invention provides a solids feeder for feeding dry coal to a pressurized gasifier at elevated temperatures substantially without losing gas from the gasifier by providing a lock having a double-acting piston that feeds the coals into the gasifier, traps the gas from escaping, and expels the trapped gas back into the gasifier.

  13. The monitoring and alarm system based on distributed temperature fiber sensing

    NASA Astrophysics Data System (ADS)

    Zhao, Hong-qiang; Zhao, Yu-liang; Zhang, Yu-ye; Wang, Shu-juan

    2014-09-01

    Air material depot is a warehouse which store consumed all the parts and equipment vault of the plane. In order to ensure the various aviation equipment integrity of the backup piece rate, the inside temperature of depot must be controlled within a certain range. Therefore, the depot must be equipped a self-contained temperature real-time monitoring system. This paper presents a distributed temperature sensing alarm system to apply to real-time measure spatial distribution of temperature field. In order to eliminate influence to the scattering strength from the light source instability and the fiber bending splice loss and to improve temperature measurement accuracy, the system design used dual-channel dual- wavelength comparison method which make Anti-Stokes as signal channel and Stokes as a reference channel to collect signals of two channel respectively and detect the ratio of the two channels' signals. The light of LD directional coupling to the sensing optical fiber in the temperature field to test, domain reflect light from the sensing optical fiber directional coupling to receive channel again, Rayleigh domain reflect light is filtered after optical filter, the Anti-Stokes and Stokes are both taken out, converted and magnified, the two signals is digitalized by A/D Converter, and written to the storage machine , which linear cumulative to the content of the storage unit, The distributed measurement of the temperature field to test is finished. The collected 2900 measuring points real-time on 2km of optical fiber. The spatial resolution of the system was 0.7m, measurement range was -20-370°C, and measurement error was ± 2 °C. All index of the system achieved the desired objective. To get an accurate temperature field spatial distribution and the information of temporal variation, the system enabled real-time temperature of aviation depot monitoring and early warning . As a new sensing technology, the distributed fiber optic sensor has the functions of self

  14. The Fine Tuning of Pain Thresholds: A Sophisticated Double Alarm System

    PubMed Central

    Plaghki, Léon; Decruynaere, Céline; Van Dooren, Paul; Le Bars, Daniel

    2010-01-01

    illustrates the role of nociception as a “double level” and “double release” alarm system based on level detectors. By contrast, warmth detection was found to be based on difference detectors. It is hypothesized that pain results from a CNS build-up process resulting from population coding and strongly influenced by the background temperatures surrounding at large the stimulation site. We propose an alternative solution to the conventional methods that only measure a single “threshold of pain”, without knowing which of the two systems is involved. PMID:20428245

  15. Xcel Energy implements an alarm management strategy

    SciTech Connect

    Bass, J.; Abreu, G.

    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.

  16. Development of feeder-free culture systems for generation of ckit+sca1+ progenitors from mouse iPS cells.

    PubMed

    Lin, Jian; Fernandez, Irina; Roy, Krishnendu

    2011-09-01

    Patient-specific therapeutic cells derived from induced pluripotent stem (iPS) cells may bypass the ethical issues associated with embryonic stem (ES) cells and avoid potential immunological reactions associated with allogenic transplantation. It is critical, for the ultimate clinical applicability of iPS cell-derived therapies, to establish feeder-free cultures that ensure efficient differentiation of iPS cells into therapeutic progenitors. It is also necessary to understand if iPS cell-derived progenitors differ from those derived from ES cells. In this study, we compared the efficiency of three different feeder-free cultures for differentiating mouse iPS cells into ckit+sca1+ hematopoietic progenitor cells (HPCs) and compared how differentiation and functionality varies between ES and iPS cells. Our results indicated that both iPS and ES cells can be efficiently differentiated into HPCs in suspension cultures supplemented with secretion factors from mouse bone marrow stromal cells (OP9-DL1 conditioned medium). The functionality of these cells was demonstrated by differentiation into CD11c+ dendritic cells (DCs). Both ES and iPS-derived DCs expressed activation molecules (CD86, CD80) in response to LPS stimulation and stimulated T cell proliferation in a mixed lymphocyte reaction (MLR). Extensive quantitative RT-PCR studies were used to study the differences in gene expression profiles of ckit+sca1+ cells generated from the various culture systems as well as differences between ES-derived and iPS-derived cells. We conclude that a feeder-free system using stromal conditioned medium can efficiently generate HPCs as well as functional DCs from iPS cells and the generated cells have similar gene expression profile as those from ES cells. PMID:21188655

  17. 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)

  18. 46 CFR 112.43-15 - Emergency lighting feeders.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Emergency lighting feeders. 112.43-15 Section 112.43-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING EMERGENCY LIGHTING AND POWER SYSTEMS Emergency Lighting Systems § 112.43-15 Emergency lighting feeders. For a vessel...

  19. 46 CFR 112.43-15 - Emergency lighting feeders.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Emergency lighting feeders. 112.43-15 Section 112.43-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING EMERGENCY LIGHTING AND POWER SYSTEMS Emergency Lighting Systems § 112.43-15 Emergency lighting feeders. For a vessel...

  20. 46 CFR 112.43-15 - Emergency lighting feeders.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Emergency lighting feeders. 112.43-15 Section 112.43-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING EMERGENCY LIGHTING AND POWER SYSTEMS Emergency Lighting Systems § 112.43-15 Emergency lighting feeders. For a vessel...

  1. 46 CFR 112.43-15 - Emergency lighting feeders.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Emergency lighting feeders. 112.43-15 Section 112.43-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING EMERGENCY LIGHTING AND POWER SYSTEMS Emergency Lighting Systems § 112.43-15 Emergency lighting feeders. For a vessel...

  2. 46 CFR 112.43-15 - Emergency lighting feeders.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Emergency lighting feeders. 112.43-15 Section 112.43-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING EMERGENCY LIGHTING AND POWER SYSTEMS Emergency Lighting Systems § 112.43-15 Emergency lighting feeders. For a vessel...

  3. Dynamic alarm response procedures

    SciTech Connect

    Martin, J.; Gordon, P.; Fitch, K.

    2006-07-01

    The Dynamic Alarm Response Procedure (DARP) system provides a robust, Web-based alternative to existing hard-copy alarm response procedures. This paperless system improves performance by eliminating time wasted looking up paper procedures by number, looking up plant process values and equipment and component status at graphical display or panels, and maintenance of the procedures. Because it is a Web-based system, it is platform independent. DARP's can be served from any Web server that supports CGI scripting, such as Apache{sup R}, IIS{sup R}, TclHTTPD, and others. DARP pages can be viewed in any Web browser that supports Javascript and Scalable Vector Graphics (SVG), such as Netscape{sup R}, Microsoft Internet Explorer{sup R}, Mozilla Firefox{sup R}, Opera{sup R}, and others. (authors)

  4. Fire alarm system/fire suppression system for mobile tactical shelters

    NASA Astrophysics Data System (ADS)

    Walker, F. K.; Lecours, C. A.; Radcliff, O.

    1985-08-01

    The objective of this project was to develop a fire detection/suppression capability for DoD standard family mobile tactical shelters. The systems developed and tested provide complete protection during all employment conditions; in garrison use, storage, transportation, and deployed field conditions. The reports outlines the requirement and the test and evaluation program. Two manufacturers of detection systems and two manufacturers of suppression systems were identified and qualified to meet the fire protection requirements for mobile tactical shelters.

  5. 24 CFR 3285.703 - Smoke alarms.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 24 Housing and Urban Development 5 2014-04-01 2014-04-01 false Smoke alarms. 3285.703 Section 3285... DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Electrical Systems and Equipment § 3285.703 Smoke alarms. Smoke alarms must be functionally tested in accordance with applicable requirements of the...

  6. 24 CFR 3285.703 - Smoke alarms.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Smoke alarms. 3285.703 Section 3285... DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Electrical Systems and Equipment § 3285.703 Smoke alarms. Smoke alarms must be functionally tested in accordance with applicable requirements of the...

  7. 24 CFR 3285.703 - Smoke alarms.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 5 2013-04-01 2013-04-01 false Smoke alarms. 3285.703 Section 3285... DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Electrical Systems and Equipment § 3285.703 Smoke alarms. Smoke alarms must be functionally tested in accordance with applicable requirements of the...

  8. 24 CFR 3285.703 - Smoke alarms.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 5 2011-04-01 2011-04-01 false Smoke alarms. 3285.703 Section 3285... DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Electrical Systems and Equipment § 3285.703 Smoke alarms. Smoke alarms must be functionally tested in accordance with applicable requirements of the...

  9. 24 CFR 3285.703 - Smoke alarms.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 24 Housing and Urban Development 5 2012-04-01 2012-04-01 false Smoke alarms. 3285.703 Section 3285... DEVELOPMENT MODEL MANUFACTURED HOME INSTALLATION STANDARDS Electrical Systems and Equipment § 3285.703 Smoke alarms. Smoke alarms must be functionally tested in accordance with applicable requirements of the...

  10. 30 CFR 77.311 - Alarm devices.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Alarm devices. 77.311 Section 77.311 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY....311 Alarm devices. Thermal dryer systems shall be equipped with both audible and visual alarm...

  11. 30 CFR 77.311 - Alarm devices.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Alarm devices. 77.311 Section 77.311 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR COAL MINE SAFETY AND HEALTH MANDATORY....311 Alarm devices. Thermal dryer systems shall be equipped with both audible and visual alarm...

  12. 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.

  13. How tissue injury alarms the immune system and causes a systemic inflammatory response syndrome

    PubMed Central

    2012-01-01

    Systemic inflammation is very prevalent among critically ill patients, particularly those with extensive tissue injury. Although downstream mediators (cytokines) and effector cells (phagocytes) have been identified, proximal mediators originating from injured tissues remained elusive. Alarmins (“danger signals”) released by necrotic/injured cells have been identified recently and certainly play a role in triggering local and systemic inflammation in critically ill patients. The most promising alarmin candidates are of mitochondrial origin, i.e. mitochondrial DNA and the chemotactic factor fMet-Leu-Phe (fMLP). ATP also is released from necrotic tissues and stimulates the assembly of the inflammasome, leading to the production of proinflammatory cytokines, such as interleukin (IL)-1ß. The identification of novel alarmins opens new therapeutic avenues for the treatment of severe SIRS, and SIRS-dependent organ dysfunction. PMID:22788849

  14. An alarm for monitoring CPAP.

    PubMed

    Carter, B; Clare, D; Hochmann, M; Osborne, A; Fraser, T

    1993-04-01

    We have built a device for use within the hospital and at home that is designed to warn of circuit disconnection when used in conjunction with continuous positive airway pressure (CPAP) therapy delivered via ventilators or CPAP generating systems. The Royal Children's Hospital CPAP alarm is a compact, battery operated alarm and monitor of circuit pressure. The device includes intrinsic safety features including a safety blow-off valve, a high pressure alarm and design features that make the device practical, safe and easy to use by both trained hospital personnel and home care attendants with limited training. PMID:8517514

  15. Detection and classification of alarm threshold violations in condition monitoring systems working in highly varying operational conditions

    NASA Astrophysics Data System (ADS)

    Strączkiewicz, M.; Barszcz, T.; Jabłoński, A.

    2015-07-01

    All commonly used condition monitoring systems (CMS) enable defining alarm thresholds that enhance efficient surveillance and maintenance of dynamic state of machinery. The thresholds are imposed on the measured values such as vibration-based indicators, temperature, pressure, etc. For complex machinery such as wind turbine (WT) the total number of thresholds might be counted in hundreds multiplied by the number of operational states. All the parameters vary not only due to possible machinery malfunctions, but also due to changes in operating conditions and these changes are typically much stronger than the former ones. Very often, such a behavior may lead to hundreds of false alarms. Therefore, authors propose a novel approach based on parameterized description of the threshold violation. For this purpose the novelty and severity factors are introduced. The first parameter refers to the time of violation occurrence while the second one describes the impact of the indicator-increase to the entire machine. Such approach increases reliability of the CMS by providing the operator with the most useful information of the system events. The idea of the procedure is presented on a simulated data similar to those from a wind turbine.

  16. Intelligent alarming

    NASA Technical Reports Server (NTRS)

    Braden, W. B.

    1992-01-01

    This talk discusses the importance of providing a process operator with concise information about a process fault including a root cause diagnosis of the problem, a suggested best action for correcting the fault, and prioritization of the problem set. A decision tree approach is used to illustrate one type of approach for determining the root cause of a problem. Fault detection in several different types of scenarios is addressed, including pump malfunctions and pipeline leaks. The talk stresses the need for a good data rectification strategy and good process models along with a method for presenting the findings to the process operator in a focused and understandable way. A real time expert system is discussed as an effective tool to help provide operators with this type of information. The use of expert systems in the analysis of actual versus predicted results from neural networks and other types of process models is discussed.

  17. Evidence of a suffocation alarm system sensitive to clinically-effective treatments with the panicolytics clonazepam and fluoxetine.

    PubMed

    Schimitel, Fagna Giacomin; Müller, Cláudia Janaina Torres; Tufik, Sérgio; Schenberg, Luiz Carlos

    2014-12-01

    Dyspnea, 'hunger for air', and the urge to flee are the cardinal symptoms of respiratory-type panic attacks. Patients also show baseline respiratory abnormalities and a higher rate of comorbid and antecedent respiratory diseases. Panic attacks are also precipitated by both the infusion of 0.5 M sodium lactate and the inhalation of 5-7% carbon dioxide (CO2) in predisposed patients, but not in healthy volunteers nor patients without panic disorder. Further studies show that patients with panic are also hyper-responsive to hypoxia. These and other observations led Klein (1993) to suggest that clinical panic is the misfiring of a suffocation alarm system. In rats, cytotoxic hypoxia of chemoreceptor cells by intravenous injection of potassium cyanide (KCN) produces short-lasting flight behaviors reminiscent of panic attacks. KCN-induced flight behaviors are blocked both by denervation of chemoreceptor cells and lesion of dorsal periaqueductal gray matter, a likely substrate of panic. Herein, we show that KCN-evoked flight behaviors are also attenuated by both acute and chronic treatment with clonazepam (0.01-0.3 mg/kg, intraperitoneally (i.p.)) and fluoxetine (1-4 mg/kg/day, i.p. for 21 days), respectively. Attenuation of KCN-evoked panic-like behaviors by clinically-effective treatment with panicolytics adds fresh evidence to the false suffocation alarm theory of panic disorder. PMID:25277323

  18. Statistical Considerations in Designing Tests of Mine Detection Systems: II - Measures Related to the False Alarm Rate

    SciTech Connect

    Simonson, K.M.

    1998-08-01

    The rate at which a mine detection system falsely identifies man-made or natural clutter objects as mines is referred to as the system's false alarm rate (FAR). Generally expressed as a rate per unit area or time, the FAR is one of the primary metrics used to gauge system performance. In this report, an overview is given of statistical methods appropriate for the analysis of data relating to FAR. Techniques are presented for determining a suitable size for the clutter collection area, for summarizing the performance of a single sensor, and for comparing different sensors. For readers requiring more thorough coverage of the topics discussed, references to the statistical literature are provided. A companion report addresses statistical issues related to the estimation of mine detection probabilities.

  19. Evaluating alternative responses to safeguards alarms

    SciTech Connect

    Al-Ayat, R.A.; Judd, B.R.; McCord, R.K.

    1982-04-15

    This paper describes a quantitative approach to help evaluate and respond to safeguards alarms. These alarms may be generated internally by a facility's safeguards systems or externally by individuals claiming to have stolen special nuclear material (SNM). This approach can be used to identify the most likely cause of an alarm - theft, hoax, or error - and to evaluate alternative responses to alarms. Possible responses include conducting investigations, initiating measures to recover stolen SNM, and replying to external threats. Based on the results of each alarm investigation step, the evaluation revises the likelihoods of possible causes of an alarm, and uses this information to determine the optimal sequence of further responses. The choice of an optimal sequence of responses takes into consideration the costs and benefits of successful thefts or hoaxes. These results provide an analytical basis for setting priorities and developing contingency plans for responding to safeguards alarms.

  20. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Portable leakage current alarm. 870.2640 Section... leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure the electrical leakage current between any two points of an electrical system and to sound an alarm...

  1. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Portable leakage current alarm. 870.2640 Section... leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure the electrical leakage current between any two points of an electrical system and to sound an alarm...

  2. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Portable leakage current alarm. 870.2640 Section... leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure the electrical leakage current between any two points of an electrical system and to sound an alarm...

  3. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Portable leakage current alarm. 870.2640 Section... leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure the electrical leakage current between any two points of an electrical system and to sound an alarm...

  4. 21 CFR 870.2640 - Portable leakage current alarm.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Portable leakage current alarm. 870.2640 Section... leakage current alarm. (a) Identification. A portable leakage current alarm is a device used to measure the electrical leakage current between any two points of an electrical system and to sound an alarm...

  5. 46 CFR 169.732 - Carbon dioxide alarm.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Carbon dioxide alarm. 169.732 Section 169.732 Shipping... Control, Miscellaneous Systems, and Equipment Markings § 169.732 Carbon dioxide alarm. Each carbon dioxide alarm must be conspicuously identified: “WHEN ALARM SOUNDS—VACATE AT ONCE. CARBON DIOXIDE BEING RELEASED.”...

  6. 46 CFR 169.732 - Carbon dioxide alarm.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Carbon dioxide alarm. 169.732 Section 169.732 Shipping... Control, Miscellaneous Systems, and Equipment Markings § 169.732 Carbon dioxide alarm. Each carbon dioxide alarm must be conspicuously identified: “WHEN ALARM SOUNDS—VACATE AT ONCE. CARBON DIOXIDE BEING RELEASED.”...

  7. Hypo- and Hyperglycemic Alarms

    PubMed Central

    Howsmon, Daniel; Bequette, B. Wayne

    2015-01-01

    Soon after the discovery that insulin regulates blood glucose by Banting and Best in 1922, the symptoms and risks associated with hypoglycemia became widely recognized. This article reviews devices to warn individuals of impending hypo- and hyperglycemia; biosignals used by these devices include electroencephalography, electrocardiography, skin galvanic resistance, diabetes alert dogs, and continuous glucose monitors (CGMs). While systems based on other technology are increasing in performance and decreasing in size, CGM technology remains the best method for both reactive and predictive alarming of hypo- or hyperglycemia. PMID:25931581

  8. Technical Basis for the Use of Alarming Personal Criticality Detectors to Augment Permanent Nuclear Incident Monitor (NIM) Systems in Areas Not Normally Occupied

    SciTech Connect

    Yates, K.R.

    2003-05-26

    The technical basis for the use of alarming personal criticality detectors (APCDs) to augment permanent Nuclear Incident Monitor (NIM) Systems in areas not normally occupied is evaluated. All applicable DOE O 420.1A and ANSI/ANS-8.3-1997 criticality alarm system requirements and recommendations are evaluated for applicability to APCDs. Based on this evaluation, design criteria and administrative requirements are presented for APCDs. Siemens EPD/Mk-2 and EPD-N devices are shown to meet the design criteria. A definition of not normally occupied is also presented.

  9. Gingival Fibroblasts as Autologous Feeders for Induced Pluripotent Stem Cells.

    PubMed

    Yu, G; Okawa, H; Okita, K; Kamano, Y; Wang, F; Saeki, M; Yatani, H; Egusa, H

    2016-01-01

    Human gingival fibroblasts (hGFs) present an attractive source of induced pluripotent stem cells (iPSCs), which are expected to be a powerful tool for regenerative dentistry. However, problems to be addressed prior to clinical application include the use of animal-derived feeder cells for cultures. The aim of this study was to establish an autologous hGF-derived iPSC (hGF-iPSC) culture system by evaluating the feeder ability of hGFs. In both serum-containing and serum-free media, hGFs showed higher proliferation than human dermal fibroblasts (hDFs). Three hGF strains were isolated under serum-free conditions, although 2 showed impaired proliferation. When hGF-iPSCs were transferred onto mitomycin C-inactivated hGFs, hDFs, or mouse-derived SNL feeders, hGF and SNL feeders were clearly hGF-iPSC supportive for more than 50 passages, whereas hDF feeders were only able to maintain undifferentiated hGF-iPSC growth for a few passages. After 20 passages on hGF feeders, embryonic stem cell marker expression and CpG methylation at the NANOG and OCT3/4 promoters were similar for hGF-iPSCs cultured on hGF and SNL feeder cells. Long-term cultures of hGF-iPSCs on hGF feeders sustained their normal karyotype and pluripotency. On hGF feeders, hGF-iPSC colonies were surrounded by many colony-derived fibroblast-like cells, and the size of intact colonies at 7 d after passage was significantly larger than that on SNL feeders. Allogeneic hGF strains also maintained hGF-iPSCs for 10 passages. Compared with hDFs, hGFs showed a higher production of laminin-332, laminin α5 chain, and insulin-like growth factor-II, which have been reported to sustain the long-term self-renewal of pluripotent stem cells. These results suggest that hGFs possess an excellent feeder capability and thus can be used as alternatives to conventional mouse-derived SNL and hDF feeders. In addition, our findings suggest that hGF feeders are promising candidates for animal component-free ex vivo expansion of

  10. Speech Alarms Pilot Study

    NASA Technical Reports Server (NTRS)

    Sandor, A.; Moses, H. R.

    2016-01-01

    Currently on the International Space Station (ISS) and other space vehicles Caution & Warning (C&W) alerts are represented with various auditory tones that correspond to the type of event. This system relies on the crew's ability to remember what each tone represents in a high stress, high workload environment when responding to the alert. Furthermore, crew receive a year or more in advance of the mission that makes remembering the semantic meaning of the alerts more difficult. The current system works for missions conducted close to Earth where ground operators can assist as needed. On long duration missions, however, they will need to work off-nominal events autonomously. There is evidence that speech alarms may be easier and faster to recognize, especially during an off-nominal event. The Information Presentation Directed Research Project (FY07-FY09) funded by the Human Research Program included several studies investigating C&W alerts. The studies evaluated tone alerts currently in use with NASA flight deck displays along with candidate speech alerts. A follow-on study used four types of speech alerts to investigate how quickly various types of auditory alerts with and without a speech component - either at the beginning or at the end of the tone - can be identified. Even though crew were familiar with the tone alert from training or direct mission experience, alerts starting with a speech component were identified faster than alerts starting with a tone. The current study replicated the results from the previous study in a more rigorous experimental design to determine if the candidate speech alarms are ready for transition to operations or if more research is needed. Four types of alarms (caution, warning, fire, and depressurization) were presented to participants in both tone and speech formats in laboratory settings and later in the Human Exploration Research Analog (HERA). In the laboratory study, the alerts were presented by software and participants were

  11. Searching the Damaged Outgoing Feeder in Networks with Insulated Neutral by Phase-to-ground Fault

    NASA Astrophysics Data System (ADS)

    Sivokobylenko, Vitaliy; Kuzmenko, Dmitriy

    2010-01-01

    The method of searching the damaged feeder was improved by alternate disconnecting of feeder circuit-breakers, which allow to enlarge reliability of the systems of power supply by diminishing the number of multiple earth fault in electric network. Diminishing the number of multiple earth faults is attained by exception of switching overvoltage, because commutations of feeder circuit-breakers are carrying out when shunting circuit breaker is closed. The detection of damage in the feeder, when this method is used, is produced on the change of phase of current in the circuit of shunting circuit breaker after disconnecting of circuit-breaker of this feeder.

  12. 46 CFR 95.05-1 - Fire detecting, manual alarm, and supervised patrol systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... provided a smoke detecting or other suitable type fire detecting system. (c) Enclosed spaces which are “specially suitable for vehicles” shall be fitted with an approved fire or smoke detecting system....

  13. Powder-Curtain Feeder For Coating Filament Tow

    NASA Technical Reports Server (NTRS)

    Baucom, Robert M.; Snoha, John J.; Marchello, Joseph M.

    1994-01-01

    Continuous fiber web receives powder coat first on one side, then on other. Vibrating helical screw mechanism in powder feeder provides even flow of powder to form powder curtain that descends onto moving web. Small amount of powder that falls to side or through web recovered easily. Powder-curtain feeder part of apparatus similar to one described in "System Applies Polymer Powder to Filament Tow" (LAR-14231).

  14. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Alarms. 95.15-30 Section 95.15-30 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CARGO AND MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) Spaces which are protected by a carbon dioxide extinguishing system and...

  15. Black Juveniles in the Juvenile Justice System: A Cause for Alarm.

    ERIC Educational Resources Information Center

    LeFlore, Larry

    This report examines the representation of black youth in the juvenile justice system, describes changes in juvenile justice philosophy, and discusses policy implications. Black youth are overrepresented at all stages of the juvenile justice system compared to white youth. Positivist theories explain this overrepresentation as the result of…

  16. Implementation guidance for industrial-level security systems using radio frequency alarm links

    SciTech Connect

    Swank, R.G.

    1996-07-12

    Spread spectrum (SS) RF transmission technologies have properties that make the transmitted signal difficult to intercept, interpret, and jam. The digital code used in the modulation process results in a signal that has high reception reliability and supports multiple use of frequency bands and selective addressing. These attributes and the relatively low installation cost of RF systems make SSRF technologies candidate for communications links in security systems used for industrial sites, remote locations, and where trenching or other disturbances of soil or structures may not be desirable or may be costly. This guide provides a description of such a system and presents implementation methods that may be of engineering benefit.

  17. Improved detection and false alarm rejection using FLGPR and color imagery in a forward-looking system

    NASA Astrophysics Data System (ADS)

    Havens, Timothy C.; Spain, Christopher J.; Ho, K. C.; Keller, James M.; Ton, Tuan T.; Wong, David C.; Soumekh, Mehrdad

    2010-04-01

    Forward-looking ground-penetrating radar (FLGPR) has received a significant amount of attention for use in explosivehazards detection. A drawback to FLGPR is that it results in an excessive number of false detections. This paper presents our analysis of the explosive-hazards detection system tested by the U.S. Army Night Vision and Electronic Sensors Directorate (NVESD). The NVESD system combines an FLGPR with a visible-spectrum color camera. We present a target detection algorithm that uses a locally-adaptive detection scheme with spectrum-based features. The remaining FLGPR detections are then projected into the camera imagery and image-based features are collected. A one-class classifier is then used to reduce the number of false detections. We show that our proposed FLGPR target detection algorithm, coupled with our camera-based false alarm (FA) reduction method, is effective at reducing the number of FAs in test data collected at a US Army test facility.

  18. 33 CFR 149.130 - What are the requirements for the cargo transfer system alarm?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... EQUIPMENT Pollution Prevention Equipment § 149.130 What are the requirements for the cargo transfer system... in areas of high ambient noise levels where hearing protection is required under § 150.615 of...

  19. 33 CFR 149.130 - What are the requirements for the cargo transfer system alarm?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... EQUIPMENT Pollution Prevention Equipment § 149.130 What are the requirements for the cargo transfer system... in areas of high ambient noise levels where hearing protection is required under § 150.615 of...

  20. 33 CFR 149.130 - What are the requirements for the cargo transfer system alarm?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... EQUIPMENT Pollution Prevention Equipment § 149.130 What are the requirements for the cargo transfer system... in areas of high ambient noise levels where hearing protection is required under § 150.615 of...

  1. 33 CFR 149.130 - What are the requirements for the cargo transfer system alarm?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... EQUIPMENT Pollution Prevention Equipment § 149.130 What are the requirements for the cargo transfer system... in areas of high ambient noise levels where hearing protection is required under § 150.615 of...

  2. 33 CFR 149.130 - What are the requirements for the cargo transfer system alarm?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... EQUIPMENT Pollution Prevention Equipment § 149.130 What are the requirements for the cargo transfer system... in areas of high ambient noise levels where hearing protection is required under § 150.615 of...

  3. 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

  4. W-026, acceptance test report fire alarm system (submittal number 1571.1)

    SciTech Connect

    Watson, T.L., Westinghouse Hanford

    1996-12-16

    This Acceptance Test Report was written by 3-D Protection Systems, Inc., and PCL Construction. WRAP I Facility Engineering, Solid Waste Fire Safety, Kaiser Acceptance Inspector and Hanford Fire Department personnel witnessed this test. All exceptions were resolved. The resolutions are attached. Contractor`s Material and Test Certificates are attached. Results from Solid Waste Industrial Hygiene sound level surveys are also included.

  5. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Alarms. 193.15-30 Section 193.15-30 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide and Clean Agent Extinguishing Systems, Details § 193.15-30 Alarms. (a) Space normally accessible to persons on board while...

  6. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Dioxide Extinguishing Systems, Details § 95.15-30 Alarms. (a) Spaces which are protected by a carbon... audible alarm in such spaces which will be automatically sounded when the carbon dioxide is admitted to... sound during the 20 second delay period prior to the discharge of carbon dioxide into the space, and...

  7. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Fire alarms. 130.470 Section 130.470 Shipping COAST GUARD, 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)...

  8. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Machinery alarms. 130.450 Section 130.450 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms....

  9. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Fire alarms. 130.470 Section 130.470 Shipping COAST GUARD, 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)...

  10. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Fire alarms. 130.470 Section 130.470 Shipping COAST GUARD, 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)...

  11. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Fire alarms. 130.470 Section 130.470 Shipping COAST GUARD, 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)...

  12. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Machinery alarms. 130.450 Section 130.450 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms....

  13. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Machinery alarms. 130.450 Section 130.450 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms....

  14. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Machinery alarms. 130.450 Section 130.450 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms....

  15. 46 CFR 130.470 - Fire alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Fire alarms. 130.470 Section 130.470 Shipping COAST GUARD, 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)...

  16. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Alarms. 193.15-30 Section 193.15-30 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide and Clean Agent Extinguishing Systems, Details § 193.15-30 Alarms. (a) Space normally accessible to persons on board while...

  17. 46 CFR 130.450 - Machinery alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Machinery alarms. 130.450 Section 130.450 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.450 Machinery alarms....

  18. Research of pulse signal processing based on sleep-monitoring alarm system

    NASA Astrophysics Data System (ADS)

    Zhang, Kaisheng; Zeng, Yuan

    2009-07-01

    From pulse diagnosis of Chinese herbalist doctor to the research of cardiovascular system by modem iatrology,they all have showed and proved that human pulse has a good affinity with diseases,especially cardiovascular diseases. Human pulse contains much physical information, and it will be propitious to know the human healthy state early so as to get therapy and recovery early when pulse signal is often detected and analyzed. study how to use the embedded microcontroller to transmit physiological signal from human to personal computer by infrared communication, and the normal sphygmic parameter in one's sleeping is compared with the one measured in order to judge whether one's sleeping condition is normal, finally ascertain the best control plan.

  19. 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

  20. Decision-making and response strategies in interaction with alarms: the impact of alarm reliability, availability of alarm validity information and workload.

    PubMed

    Manzey, Dietrich; Gérard, Nina; Wiczorek, Rebecca

    2014-01-01

    Responding to alarm systems which usually commit a number of false alarms and/or misses involves decision-making under uncertainty. Four laboratory experiments including a total of 256 participants were conducted to gain comprehensive insight into humans' dealing with this uncertainty. Specifically, it was investigated how responses to alarms/non-alarms are affected by the predictive validities of these events, and to what extent response strategies depend on whether or not the validity of alarms/non-alarms can be cross-checked against other data. Among others, the results suggest that, without cross-check possibility (experiment 1), low levels of predictive validity of alarms ( ≤ 0.5) led most participants to use one of two different strategies which both involved non-responding to a significant number of alarms (cry-wolf effect). Yet, providing access to alarm validity information reduced this effect dramatically (experiment 2). This latter result emerged independent of the effort needed for cross-checkings of alarms (experiment 3), but was affected by the workload imposed by concurrent tasks (experiment 4). Theoretical and practical consequences of these results for decision-making and response selection in interaction with alarm systems, as well as the design of effective alarm systems, are discussed. PMID:25224606

  1. Do deposit-feeders compete? Isotopic niche analysis of an invasion in a species-poor system

    PubMed Central

    Karlson, Agnes M. L.; Gorokhova, Elena; Elmgren, Ragnar

    2015-01-01

    Successful establishment of invasive species is often related to the existence of vacant niches. Competition occurs when invaders use the same limiting resources as members of the recipient community, which will be reflected in some overlap of their trophic niches. The concept of isotopic niche has been used to study trophic niche partitioning among species. Here, we present a two-year field study comparing isotopic niches of the deposit-feeding community in a naturally species-poor system. The isotopic niche analyses showed no overlap between a recent polychaete invader and any of the native species suggesting that it has occupied a vacant niche. Its narrow isotopic niche suggests specialized feeding, however, the high δ15N values compared to natives are most likely due to isotope fractionation effects related to nitrogen recycling and a mismatch between biological stoichiometry of the polychaete and the sediment nitrogen content. Notably, highly overlapping isotopic niches were inferred for the native species, which is surprising in a food-limited system. Therefore, our results demonstrate that invaders may broaden the community trophic diversity and enhance resource utilization, but also raise questions about the congruence between trophic and isotopic niche concepts and call for careful examination of assumptions underlying isotopic niche interpretation. PMID:25988260

  2. Coal-feeder development. Second quarterly technical progress report, January-March 1980

    SciTech Connect

    Mistry, D.K.

    1981-04-01

    The pilot-scale piston-feeder development is progressing satisfactorily and should proceed as planned. The bench scale testing of components, sub-system and critical areas continued to provide very useful information in support of the development of the complete feeder. The K30M seals and polyurethane scrapers are showing very promising results. The components development facility is being upgraded and testing at the bench scale level should be vigorously perused. The upgrading of the pilot scale feeder and its system will be emphasized during the next quarter to perform feeder capabilities and limitations testing. No progress on the 5.5-in. diameter pilot scale screw feeder has been made because IRRI is waiting decision from METC as to when the feeder can be installed on the 42-in. gas producer.

  3. Magma storage and evolution in the Henties Bay-Outjo dyke swarm, Namibia -feeder systems of the Etendeka lavas

    NASA Astrophysics Data System (ADS)

    Keiding, J. K.; Frei, O.; Renno, A.; Veksler, I. V.; Trumbull, R. B.

    2012-04-01

    At the roots of continental flood basalts in the Paraná-Etendeka province are mafic dyke swarms that cover areas of several hundred kilometers. Studies of these dykes have focused mainly on the age, paleomagnetic properties and geochemistry, but less on pressure (P) and temperature (T) conditions of emplacement. However, the P and T conditions under which dyke magmas are stored are crucial for models of magma plumbing systems in flood basalt provinces. The erupted lavas are typically far from primitive compositions and generally show evidence for strong crustal assimilation in addition to magma fractionation. Unknown is where this magma modification took place in the crust. This is the kind of information that dyke studies can provide. The Henties Bay Outjo dyke swarm (HOD) in NW Namibia is the subject of this study. This is inarguably the best exposed of major dyke swarms associated with South Atlantic rifting and breakup and its geochemical diversity is well documented but aspects relating to the magma dynamics in the dyke swarm have not been studied before. Our approach is to use geochemical data from selected dykes to assess the differentiation and assimilation history of the magmas, and combine that with petrologic constraints on the temperature-pressure conditions of crystallization derived from mineral-melt equilibria. We have determined P-T estimates from olivine-melt and clinopyroxene-melt equilibria using analysis of phenocrysts by electron microprobe and applying the thermodynamic relations from Putirka (2008), who considered the standard error to be 1.7 kbar and 30°C. The calculations reflect only mineral-melt (proxied by whole-rock) compositions that are consistent with equilibrium. Crystallization temperatures range from 1040°C to 1350°C with a mean (n=58) of 1170 °C. These T-variations are not random, the high-temperature results come from a specific region of dyke emplacement but the reason for this is not yet clear. Olivine-melt temperatures

  4. Smart smoke alarm

    DOEpatents

    Warmack, Robert J. Bruce; Wolf, Dennis A; Frank, Steven Shane

    2015-04-28

    Methods and apparatus for smoke detection are disclosed. In one embodiment, a smoke detector uses linear discriminant analysis (LDA) to determine whether observed conditions indicate that an alarm is warranted.

  5. Speech Alarms Pilot Study

    NASA Technical Reports Server (NTRS)

    Sandor, Aniko; Moses, Haifa

    2016-01-01

    Speech alarms have been used extensively in aviation and included in International Building Codes (IBC) and National Fire Protection Association's (NFPA) Life Safety Code. However, they have not been implemented on space vehicles. Previous studies conducted at NASA JSC showed that speech alarms lead to faster identification and higher accuracy. This research evaluated updated speech and tone alerts in a laboratory environment and in the Human Exploration Research Analog (HERA) in a realistic setup.

  6. Solids feeder apparatus

    DOEpatents

    Bell, Jr., Harold S.

    1979-01-01

    This invention sets forth a double-acting piston, which carries a floating piston, and which is reciprocated in a housing, for feeding coal to a high pressure gasifier system. The housing has a plurality of solids (for instance: coal) in-feeding ports and a single discharge port, the latter port being in communication with a high pressure gasifier system. The double-acting piston sequentially and individually communicates each of the in-feeding ports with the discharge port. The floating piston both seals off the discharge port while each in-feeding port is receiving coal or the like, to prevent undue escape of gas from the gasifier system, and translates in the housing, following a discharge of coal or the like into the discharge port, to return gas which has been admitted into the housing back into the gasifier system.

  7. 46 CFR 119.530 - Bilge high level alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Bilge high level alarms. 119.530 Section 119.530... Bilge and Ballast Systems § 119.530 Bilge high level alarms. (a) Each vessel must be provided with a visual and audible alarm at the operating station to indicate a high water level in each of the...

  8. 46 CFR 119.530 - Bilge high level alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Bilge high level alarms. 119.530 Section 119.530... Bilge and Ballast Systems § 119.530 Bilge high level alarms. (a) Each vessel must be provided with a visual and audible alarm at the operating station to indicate a high water level in each of the...

  9. 46 CFR 119.530 - Bilge high level alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Bilge high level alarms. 119.530 Section 119.530... Bilge and Ballast Systems § 119.530 Bilge high level alarms. (a) Each vessel must be provided with a visual and audible alarm at the operating station to indicate a high water level in each of the...

  10. 46 CFR 119.530 - Bilge high level alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Bilge high level alarms. 119.530 Section 119.530... Bilge and Ballast Systems § 119.530 Bilge high level alarms. (a) Each vessel must be provided with a visual and audible alarm at the operating station to indicate a high water level in each of the...

  11. 46 CFR 119.530 - Bilge high level alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Bilge high level alarms. 119.530 Section 119.530... Bilge and Ballast Systems § 119.530 Bilge high level alarms. (a) Each vessel must be provided with a visual and audible alarm at the operating station to indicate a high water level in each of the...

  12. 46 CFR 169.731 - General alarm bells.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false General alarm bells. 169.731 Section 169.731 Shipping... Control, Miscellaneous Systems, and Equipment Markings § 169.731 General alarm bells. On vessels of 100 gross tons and over each general alarm bell must be identified by red lettering at least 1/2 inch...

  13. 46 CFR 169.730 - General alarm bell switch.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false General alarm bell switch. 169.730 Section 169.730... Vessel Control, Miscellaneous Systems, and Equipment Markings § 169.730 General alarm bell switch. On vessels of 100 gross tons and over there must be a general alarm bell switch in the pilothouse,...

  14. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Placement of machinery alarms. 130.460 Section 130.460..., AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460 Placement of machinery alarms. (a) Visible and audible alarms must be installed at the pilothouse to...

  15. Smoke alarm tests may not adequately indicate smoke alarm function.

    PubMed

    Peek-Asa, Corinne; Yang, Jingzhen; Hamann, Cara; Young, Tracy

    2011-01-01

    Smoke alarms are one of the most promoted prevention strategies to reduce residential fire deaths, and they can reduce residential fire deaths by half. Smoke alarm function can be measured by two tests: the smoke alarm button test and the chemical smoke test. Using results from a randomized trial of smoke alarms, we compared smoke alarm response to the button test and the smoke test. The smoke alarms found in the study homes at baseline were tested, as well as study alarms placed into homes as part of the randomized trial. Study alarms were tested at 12 and 42 months postinstallation. The proportion of alarms that passed the button test but not the smoke test ranged from 0.5 to 5.8% of alarms; this result was found most frequently among ionization alarms with zinc or alkaline batteries. These alarms would indicate to the owner (through the button test) that the smoke alarm was working, but the alarm would not actually respond in the case of a fire (as demonstrated by failing the smoke test). The proportion of alarms that passed the smoke test but not the button test ranged from 1.0 to 3.0%. These alarms would appear nonfunctional to the owner (because the button test failed), even though the alarm would operate in response to a fire (as demonstrated by passing the smoke test). The general public is not aware of the potential for inaccuracy in smoke alarm tests, and burn professionals can advocate for enhanced testing methods. The optimal test to determine smoke alarm function is the chemical smoke test. PMID:21747329

  16. An automatic 14-day paste diet feeder for animals

    NASA Technical Reports Server (NTRS)

    Vasques, Marilyn; Mulenburg, Jerry; Gundo, Dan; Griffith, Jon

    1994-01-01

    During a centrifuge experiment, any interruption that requires stopping the centrifuge may influence the results. Centrifuges often must be stopped for animal maintenance (food, water and waste removal), especially in cases of timed feedings. To eliminate the need for stopping the centrifuge while still providing timed feeding, an automatic paste diet feeder was developed. The feeder is based on a constant volume concept and can deliver a predetermined amount of paste diet at specified time intervals. This unit was supported by water delivery and waste collection systems. The entire system performed reliably and maintained the animals well for a continuous centrifugation experiment of 14 days.

  17. MRDIS Standalone Central Alarm Station

    SciTech Connect

    2012-09-12

    The MRDIS Standalone Central Alarm Station(MRDIS-CAS} is a software system for receiving, storing, and reviewing radiation data collected by the Mobile Radiation Detection and Identification System (MRDIS}, a mobile radiation scanning system developed for use in foreign ports for the DOE Megaports Initiative. It is designed to run on one of the on board computers in the MRDIS cab. It will collect, store, and display data from the MRDIS without the need for wireless communications or centralized server technology. It is intended to be a lightweight replacement for a distributed Megaports communication system in ports where the necessary communications infrastructure does not exist for a full Megaports communications system.

  18. Alarm points for fixed oxygen monitors

    SciTech Connect

    Miller, G.C.

    1987-05-01

    Oxygen concentration monitors were installed in a vault where numerous pipes carried inert cryogens and gases to the Mirror Fusion Test Facility (MFTF-B) experimental vessel at Lawrence Livermore National Laboratory (LLNL). The problems associated with oxygen-monitoring systems and the reasons why such monitors were installed were reviewed. As a result of this review, the MFTF-B monitors were set to sound an evacuation alarm when the oxygen concentration fell below 18%. We chose the 18% alarm criterion to minimize false alarms and to allow time for personnel to escape in an oxygen-deficient environment.

  19. Clinical Alarms in Intensive Care Units: Perceived Obstacles of Alarm Management and Alarm Fatigue in Nurses

    PubMed Central

    Cho, Ok Min; Lee, Young Whee; Cho, Insook

    2016-01-01

    Objectives The purpose of this descriptive study was to investigate the current situation of clinical alarms in intensive care unit (ICU), nurses' recognition of and fatigue in relation to clinical alarms, and obstacles in alarm management. Methods Subjects were ICU nurses and devices from 48 critically ill patient cases. Data were collected through direct observation of alarm occurrence and questionnaires that were completed by the ICU nurses. The observation time unit was one hour block. One bed out of 56 ICU beds was randomly assigned to each observation time unit. Results Overall 2,184 clinical alarms were counted for 48 hours of observation, and 45.5 clinical alarms occurred per hour per subject. Of these, 1,394 alarms (63.8%) were categorized as false alarms. The alarm fatigue score was 24.3 ± 4.0 out of 35. The highest scoring item was "always get bothered due to clinical alarms". The highest scoring item in obstacles was "frequent false alarms, which lead to reduced attention or response to alarms". Conclusions Nurses reported that they felt some fatigue due to clinical alarms, and false alarms were also obstacles to proper management. An appropriate hospital policy should be developed to reduce false alarms and nurses' alarm fatigue. PMID:26893950

  20. Multistation alarm system for eruptive activity based on the automatic classification of volcanic tremor: specifications and performance

    NASA Astrophysics Data System (ADS)

    Langer, Horst; Falsaperla, Susanna; Messina, Alfio; Spampinato, Salvatore

    2015-04-01

    With over fifty eruptive episodes (Strombolian activity, lava fountains, and lava flows) between 2006 and 2013, Mt Etna, Italy, underscored its role as the most active volcano in Europe. Seven paroxysmal lava fountains at the South East Crater occurred in 2007-2008 and 46 at the New South East Crater between 2011 and 2013. Month-lasting lava emissions affected the upper eastern flank of the volcano in 2006 and 2008-2009. On this background, effective monitoring and forecast of volcanic phenomena are a first order issue for their potential socio-economic impact in a densely populated region like the town of Catania and its surroundings. For example, explosive activity has often formed thick ash clouds with widespread tephra fall able to disrupt the air traffic, as well as to cause severe problems at infrastructures, such as highways and roads. For timely information on changes in the state of the volcano and possible onset of dangerous eruptive phenomena, the analysis of the continuous background seismic signal, the so-called volcanic tremor, turned out of paramount importance. Changes in the state of the volcano as well as in its eruptive style are usually concurrent with variations of the spectral characteristics (amplitude and frequency content) of tremor. The huge amount of digital data continuously acquired by INGV's broadband seismic stations every day makes a manual analysis difficult, and techniques of automatic classification of the tremor signal are therefore applied. The application of unsupervised classification techniques to the tremor data revealed significant changes well before the onset of the eruptive episodes. This evidence led to the development of specific software packages related to real-time processing of the tremor data. The operational characteristics of these tools - fail-safe, robustness with respect to noise and data outages, as well as computational efficiency - allowed the identification of criteria for automatic alarm flagging. The

  1. Is your bird feeder safe?

    USGS Publications Warehouse

    Ruth, J.; Friend, M.

    1997-01-01

    Bird feeding is a popular activity for millions of Americans. Some of our favorite bird species commonly visit bird feeders and these stations may be an important factor in their well-being during some segments of their life-cycle. However, poorly maintained feeding stations may contribute to the occurrence of infectious disease and mortality. In recent years there have been unprecedented reports of songbird mortality events and the occurrence of a previously unreported disease in songbirds. The National Wildlife Health Center of the U.S. Geological Survey conducts research on diseases in wildlife, their causes, and means of preventing or reducing disease outbreaks.

  2. Applications of the Petri net to simulate, test, and validate the performance and safety of complex, heterogeneous, multi-modality patient monitoring alarm systems.

    PubMed

    Sloane, E B; Gelhot, V

    2004-01-01

    This research is motivated by the rapid pace of medical device and information system integration. Although the ability to interconnect many medical devices and information systems may help improve patient care, there is no way to detect if incompatibilities between one or more devices might cause critical events such as patient alarms to go unnoticed or cause one or more of the devices to become stuck in a disabled state. Petri net tools allow automated testing of all possible states and transitions between devices and/or systems to detect potential failure modes in advance. This paper describes an early research project to use Petri nets to simulate and validate a multi-modality central patient monitoring system. A free Petri net tool, HPSim, is used to simulate two wireless patient monitoring networks: one with 44 heart monitors and a central monitoring system and a second version that includes an additional 44 wireless pulse oximeters. In the latter Petri net simulation, a potentially dangerous heart arrhythmia and pulse oximetry alarms were detected. PMID:17271039

  3. 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.

  4. 46 CFR 113.25-9 - Location of general emergency alarm signal.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Location of general emergency alarm signal. 113.25-9 Section 113.25-9 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) ELECTRICAL ENGINEERING COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT General Emergency Alarm Systems § 113.25-9 Location of general emergency alarm signal....

  5. Analyzing safeguards alarms and response decisions

    SciTech Connect

    Al-Ayat, R.A.; Judd, B.R.; McCord, R.K.

    1982-01-01

    This report describes a quantitative model designed to help the Nuclear Regulatory Commission (NRC) and its licensees evaluate and respond to alarms indicating that special nuclear material (SNM) may be missing. The model is called the Alarm/Response (A/R) Model. The report demonstrates three principal uses of the A/R Model. The first is determining the most likely cause of an alarm - theft, hoax, or error. The second is evaluating alternative responses to alarms. Possible responses include conducting investigations, initiating measures to recover stolen SNM, and replying to extortion threats from individuals claiming to possess SNM. For each possible alarm, the model identifies the best response, which can be used to develop contingency plans that the licensee and the NRC can carry out. The third use is to assist the NRC in setting performance standards, especially detection time requirements. In this application, the model helps to determine the value of more timely alarms produced by licensee safeguards systems. All three uses are demonstrated with hypothetical examples. A preliminary computer code produced sample results and determined the sensitivity of those results to subjective factors in the example.

  6. 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.

  7. ITER Magnet Feeder: Design, Manufacturing and Integration

    NASA Astrophysics Data System (ADS)

    CHEN, Yonghua; ILIN, Y.; M., SU; C., NICHOLAS; BAUER, P.; JAROMIR, F.; LU, Kun; CHENG, Yong; SONG, Yuntao; LIU, Chen; HUANG, Xiongyi; ZHOU, Tingzhi; SHEN, Guang; WANG, Zhongwei; FENG, Hansheng; SHEN, Junsong

    2015-03-01

    The International Thermonuclear Experimental Reactor (ITER) feeder procurement is now well underway. The feeder design has been improved by the feeder teams at the ITER Organization (IO) and the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP) in the last 2 years along with analyses and qualification activities. The feeder design is being progressively finalized. In addition, the preparation of qualification and manufacturing are well scheduled at ASIPP. This paper mainly presents the design, the overview of manufacturing and the status of integration on the ITER magnet feeders. supported by the National Special Support for R&D on Science and Technology for ITER (Ministry of Public Security of the People's Republic of China-MPS) (No. 2008GB102000)

  8. Photocopy of original nap (from feeder book), New York State ...

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

    Photocopy of original nap (from feeder book), New York State Archives and Manuscripts, Albany, New York), Holnes Hutchinson, surveyor, 1834 - Glens Falls Feeder, Sluice, Along south side of Glens Falls Feeder between locks 10 & 20, Hudson Falls, Washington County, NY

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

    SciTech Connect

    Lamb, Logan M

    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. 46 CFR 113.27-1 - Engineers' assistance-needed alarm.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Engineers' assistance-needed alarm. 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 Engineers' assistance-needed alarm. Each self-propelled...

  11. 46 CFR 113.27-1 - Engineers' assistance-needed alarm.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Engineers' assistance-needed alarm. 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 Engineers' assistance-needed alarm. Each self-propelled...

  12. 46 CFR 113.27-1 - Engineers' assistance-needed alarm.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Engineers' assistance-needed alarm. 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 Engineers' assistance-needed alarm. Each self-propelled...

  13. Classification of alarm processing techniques and human performance issues

    SciTech Connect

    Kim, I.S.; O'Hara, J.M.

    1993-01-01

    Human factors reviews indicate that conventional alarm systems based on the one sensor, one alarm approach, have many human engineering deficiencies, a paramount example being too many alarms during major disturbances. As an effort to resolve these deficiencies, various alarm processing systems have been developed using different techniques. To ensure their contribution to operational safety, the impacts of those systems on operating crew performance should be carefully evaluated. This paper briefly reviews some of the human factors research issues associated with alarm processing techniques and then discusses a framework with which to classify the techniques. The dimensions of this framework can be used to explore the effects of alarm processing systems on human performance.

  14. Classification of alarm processing techniques and human performance issues

    SciTech Connect

    Kim, I.S.; O`Hara, J.M.

    1993-05-01

    Human factors reviews indicate that conventional alarm systems based on the one sensor, one alarm approach, have many human engineering deficiencies, a paramount example being too many alarms during major disturbances. As an effort to resolve these deficiencies, various alarm processing systems have been developed using different techniques. To ensure their contribution to operational safety, the impacts of those systems on operating crew performance should be carefully evaluated. This paper briefly reviews some of the human factors research issues associated with alarm processing techniques and then discusses a framework with which to classify the techniques. The dimensions of this framework can be used to explore the effects of alarm processing systems on human performance.

  15. Development of a Feeder for Uninterrupted Centrifugation Studies

    NASA Technical Reports Server (NTRS)

    Mulenburg, Gerald M.; Vasques, Marilyn F.; Gundo, Daniel P.; Griffith, Jon B.; Wade, Charles E. (Technical Monitor)

    1994-01-01

    A specialized paste diet feeder was developed in support of a hypergravity (2G) centrifuge study. The centrifuge study was to be compared to a previously flown Russian Cosmos spaceflight so experimental parameters of the 14 day spaceflight had to be duplicated. In order to duplicate at hyper G an experiment that took place in weightlessness, all other conditions must be as identical as possible. Stopping the centrifuge to provide maintenance for the animals causes unacceptable changes in experimental research results. Thus the experimental protocol required the delivery of a designated amount of paste diet at regular intervals for a two week period without stopping the centrifuge. A centrifuge and a stationary control cage, each containing 10 laboratory rats, were fitted with feeders that were calibrated to provide 140 plus or minus 2g of paste diet every 6 hours. This paper describes development of the feeder design and results of its operation over the two week experiment. The design philosophy and details of the feeder system are provided with recommendations for future such devices.

  16. Evaluation of nine different types of enuresis alarms.

    PubMed

    Goel, K M; Thomson, R B; Gibb, E M; McAinsh, T F

    1984-08-01

    One hundred enuretic children were treated in closely supervised trial conditions with nine commonly used enuresis alarm systems available commercially in the United Kingdom. Although there was little difference between the systems in terms of their effectiveness in stopping bed wetting, parents preferred the Eastleigh and Urilarm De-Luxe models which had distinct advantages in respect of false alarms, breakdowns, and durability of pads. Enuresis alarms that perform poorly in these respects may lead to loss of enthusiasm and non-compliance. The systems vary widely in price, but a private buyer may find a cheaper alarm just as effective. PMID:6476872

  17. MRDIS Standalone Central Alarm Station

    2012-09-12

    The MRDIS Standalone Central Alarm Station(MRDIS-CAS} is a software system for receiving, storing, and reviewing radiation data collected by the Mobile Radiation Detection and Identification System (MRDIS}, a mobile radiation scanning system developed for use in foreign ports for the DOE Megaports Initiative. It is designed to run on one of the on board computers in the MRDIS cab. It will collect, store, and display data from the MRDIS without the need for wireless communicationsmore » or centralized server technology. It is intended to be a lightweight replacement for a distributed Megaports communication system in ports where the necessary communications infrastructure does not exist for a full Megaports communications system.« less

  18. 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.

  19. 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.

  20. Likelihood alarm displays. [for human operator

    NASA Technical Reports Server (NTRS)

    Sorkin, Robert D.; Kantowitz, Barry H.; Kantowitz, Susan C.

    1988-01-01

    In a likelihood alarm display (LAD) information about event likelihood is computed by an automated monitoring system and encoded into an alerting signal for the human operator. Operator performance within a dual-task paradigm was evaluated with two LADs: a color-coded visual alarm and a linguistically coded synthetic speech alarm. The operator's primary task was one of tracking; the secondary task was to monitor a four-element numerical display and determine whether the data arose from a 'signal' or 'no-signal' condition. A simulated 'intelligent' monitoring system alerted the operator to the likelihood of a signal. The results indicated that (1) automated monitoring systems can improve performance on primary and secondary tasks; (2) LADs can improve the allocation of attention among tasks and provide information integrated into operator decisions; and (3) LADs do not necessarily add to the operator's attentional load.

  1. Manually Operated Welding Wire Feeder

    NASA Technical Reports Server (NTRS)

    Rybicki, Daniel J. (Inventor)

    2001-01-01

    A manual welding wire feeder apparatus comprising a bendable elongate metal frame with a feed roller mounted at the center thereof for rotation about an axis transverse to the longitudinal axis of the frame. The frame ends are turned up as tabs and each provided with openings in alignment with each other and the mid-width center of the roller surface. The tab openings are sized to accommodate welding wire and each extends to a side edge of the tab, both opening on the same side of the frame, whereby welding wire can be side-loaded onto the frame. On the side of the frame, opposite the roller a lock ring handle is attached tangentially and is rotatable about the attachment point and an axis perpendicular to the frame. The device is grasped in the hand normally used to hold the wire. A finger is placed through the loop ring and the frame positioned across the palm and lower fingers. The thumb is positioned atop the wire so it can be moved from the back of the frame across the roller, and towards the front. In doing so, the wire is advanced at a steady rate in axial alignment with the tab openings and roller. To accommodate different wire diameters the frame is bendable about its center in the plane of the frame axis and wire so as to keep the wire in sufficient tension against the roller and to keep the wire fixed when the frame is tilted and thumb pressure released.

  2. Alarm toe switch

    DOEpatents

    Ganyard, Floyd P.

    1982-01-01

    An alarm toe switch inserted within a shoe for energizing an alarm circuit n 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. The reed switch is hermetically sealed with the magnet acting through the wall so the switch assembly S is capable of reliable operation even in wet and corrosive environments.

  3. Broadcasting satellite feeder links - Characteristics and planning

    NASA Technical Reports Server (NTRS)

    Kiebler, J. W.

    1982-01-01

    The paper presents the results of recent studies by the Feeder Link Sub-Working Group of the FCC Advisory Committee for the 1983 Regional Administrative Radio Conference (RARC). These studies conclude that specification of a few key parameters will make feeder link planning relatively straightforward. Feeder links can be located anywhere within a country if satellite orbit locations are separated by 10 deg for adjacent service areas and key parameter values presented in the paper are adopted. Colocated satellites serving a common service area need special attention to attain sufficient isolation between a desired channel and its adjacent cross-polarized channels and alternate co-polarized channels. In addition to presenting planning conclusions by the Advisory Committee, the paper presents and analyzes actions of the International Radio Consultative Committee's Conference Planning Meeting (CPM) concerning feeder links. The CPM reached conclusions similar to, and compatible with, those of the Advisory Committee.

  4. Framework for analyzing safeguards alarms and response decisions

    SciTech Connect

    Al-Ayat, R.A.; Judd, B.R.; McCord, R.K.

    1982-06-11

    This paper describes a quantitative approach to help evaluate and respond to safeguards alarms. These alrms may be generated internally by a facility's safeguards systems or externally by individuals claiming to possess stolen Special Nuclear Material (SNM). This approach can be used to identify the most likely cause of an alarm - theft, hoax, or error - and to evaluate alternative responses to alarms. Possible responses include conducting investigations, initiating measures to recover stolen SNM, and replying to external threats. Based on the results of each alarm investigation step, the evaluation revises the likelihoods of possible causes of an alarm, and uses this information to determine the optimal sequence of further responses. The choice of an optimal sequence of responses takes into consideration the costs and benefits of successful thefts or hoaxes. These results provide an analytical basis for setting priorities and developing contingency plans for responding to safeguards alarms.

  5. 46 CFR 111.33-7 - Alarms and shutdowns.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Alarms and shutdowns. 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 and shutdowns. Each power...

  6. 46 CFR 111.33-7 - Alarms and shutdowns.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Alarms and shutdowns. 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 and shutdowns. Each power...

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

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Alarms and shutdowns. 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 and shutdowns. Each power...

  8. 46 CFR 111.33-7 - Alarms and shutdowns.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Alarms and shutdowns. 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 and shutdowns. Each power...

  9. 46 CFR 111.33-7 - Alarms and shutdowns.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Alarms and shutdowns. 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 and shutdowns. Each power semiconductor rectifier must have a...

  10. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Alarm and means of escape. 108.445 Section 108.445 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (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...

  11. Evaluation of ventilator alarms.

    PubMed

    1984-01-01

    An evaluation of ventilator alarms is being carried out for the DHSS within the Welsh National School of Medicine. The technical performance and safety assessments are being made within the Department of Anaesthetics and clinical trials within the South Glamorgan Area Health Authority. For this evaluation (published in 'Health Equipment Information' ['HEI'] No. 124 [June 1984]) one example of each model was assessed (Penlon IDP, Draeger, Medix Ventimonitor 101, BOC Medishield, East Ventilarm, Cape TTL) and the conclusions are based on the assumption that the sample was typical of normal production. This is a continuing programme and the next report will evaluate a group of infant ventilators. For full details of the evaluation findings, readers should consult 'HEI' 124. The following are extracts from the report. PMID:6398368

  12. The design and planning of feeder links to broadcasting satellites

    NASA Technical Reports Server (NTRS)

    Kiebler, J. W.

    1985-01-01

    Design and planning guidelines being followed to define feeder link parameters for the U.S. ITU Region 2 DBS system are outlined. The carrier/noise (C/N) ratio determines the signal quality acceptable to the consumer and sets the standards which the link must meet. A 10 dB margin is required to meet a 99 percent availability criterion for the times of heaviest rainfall attenuation. The receiver gain is limited by the bandwidth, system noise temperature, and the antenna size. Three mechanisms have been identified for ensuring receiver discrimination between desired and interfering signals. Test points must be selected to examine the effectiveness of the chosen feeder link configuration in maintaining signal reception and channel separation, of the antennas installed, and of the orbital positions of the satellites.

  13. 46 CFR 62.25-20 - Instrumentation, alarms, and centralized stations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... ENGINEERING VITAL SYSTEM AUTOMATION General Requirements for All Automated Vital Systems § 62.25-20...) Automation alarms must be separate and independent of the following: (i) The fire detection and alarm...

  14. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces which are protected by a carbon dioxide... such spaces which will be automatically sounded when the carbon dioxide is admitted to the space....

  15. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces which are protected by a carbon dioxide... such spaces which will be automatically sounded when the carbon dioxide is admitted to the space....

  16. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces which are protected by a carbon dioxide... such spaces which will be automatically sounded when the carbon dioxide is admitted to the space....

  17. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces which are protected by a carbon dioxide... such spaces which will be automatically sounded when the carbon dioxide is admitted to the space....

  18. 46 CFR 76.15-30 - Alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Carbon Dioxide Extinguishing Systems, Details § 76.15-30 Alarms. (a) Spaces which are protected by a carbon dioxide... such spaces which will be automatically sounded when the carbon dioxide is admitted to the space....

  19. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... board while the vessel is being navigated which are protected by a carbon dioxide extinguishing system... when the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally... as to sound during the 20-second delay period prior to the discharge of carbon dioxide into the...

  20. 46 CFR 193.15-30 - Alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... board while the vessel is being navigated which are protected by a carbon dioxide extinguishing system... when the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally... as to sound during the 20-second delay period prior to the discharge of carbon dioxide into the...

  1. Automated fault location and diagnosis on electric power distribution feeders

    SciTech Connect

    Zhu, J.; Lubkeman, D.L.; Girgis, A.A.

    1997-04-01

    This paper presents new techniques for locating and diagnosing faults on electric power distribution feeders. The proposed fault location and diagnosis scheme is capable of accurately identifying the location of a fault upon its occurrence, based on the integration of information available from disturbance recording devices with knowledge contained in a distribution feeder database. The developed fault location and diagnosis system can also be applied to the investigation of temporary faults that may not result in a blown fuse. The proposed fault location algorithm is based on the steady-state analysis of the faulted distribution network. To deal with the uncertainties inherent in the system modeling and the phasor estimation, the fault location algorithm has been adapted to estimate fault regions based on probabilistic modeling and analysis. Since the distribution feeder is a radial network, multiple possibilities of fault locations could be computed with measurements available only at the substation. To identify the actual fault location, a fault diagnosis algorithm has been developed to prune down and rank the possible fault locations by integrating the available pieces of evidence. Testing of the developed fault location and diagnosis system using field data has demonstrated its potential for practical use.

  2. 46 CFR 182.530 - Bilge high level alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Bilge high level alarms. 182.530 Section 182.530... TONS) MACHINERY INSTALLATION Bilge and Ballast Systems § 182.530 Bilge high level alarms. (a) On a... operating station to indicate a high water level in each of the following normally unmanned spaces: (1)...

  3. 46 CFR 182.530 - Bilge high level alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Bilge high level alarms. 182.530 Section 182.530... TONS) MACHINERY INSTALLATION Bilge and Ballast Systems § 182.530 Bilge high level alarms. (a) On a... operating station to indicate a high water level in each of the following normally unmanned spaces: (1)...

  4. 46 CFR 182.530 - Bilge high level alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Bilge high level alarms. 182.530 Section 182.530... TONS) MACHINERY INSTALLATION Bilge and Ballast Systems § 182.530 Bilge high level alarms. (a) On a... operating station to indicate a high water level in each of the following normally unmanned spaces: (1)...

  5. 46 CFR 182.530 - Bilge high level alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Bilge high level alarms. 182.530 Section 182.530... TONS) MACHINERY INSTALLATION Bilge and Ballast Systems § 182.530 Bilge high level alarms. (a) On a... operating station to indicate a high water level in each of the following normally unmanned spaces: (1)...

  6. 46 CFR 153.409 - High level alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false High level alarms. 153.409 Section 153.409 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS Design and Equipment Cargo Gauging Systems § 153.409 High level alarms. When Table...

  7. 24 CFR 3280.208 - Smoke alarm requirements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... URBAN DEVELOPMENT MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARDS Fire Safety § 3280.208 Smoke alarm..., Smoke Detectors for Fire Protective Signaling Systems, dated January 4, 1999 (incorporated by reference... 24 Housing and Urban Development 5 2014-04-01 2014-04-01 false Smoke alarm requirements....

  8. 24 CFR 3280.208 - Smoke alarm requirements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... URBAN DEVELOPMENT MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARDS Fire Safety § 3280.208 Smoke alarm... reference, see § 3280.4), or UL 268, Smoke Detectors for Fire Protective Signaling Systems, dated January 4... 24 Housing and Urban Development 5 2013-04-01 2013-04-01 false Smoke alarm requirements....

  9. 24 CFR 3280.208 - Smoke alarm requirements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... URBAN DEVELOPMENT MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARDS Fire Safety § 3280.208 Smoke alarm... reference, see § 3280.4), or UL 268, Smoke Detectors for Fire Protective Signaling Systems, dated January 4... 24 Housing and Urban Development 5 2012-04-01 2012-04-01 false Smoke alarm requirements....

  10. Alarm fatigue: a patient safety concern.

    PubMed

    Sendelbach, Sue; Funk, Marjorie

    2013-01-01

    Research has demonstrated that 72% to 99% of clinical alarms are false. The high number of false alarms has led to alarm fatigue. Alarm fatigue is sensory overload when clinicians are exposed to an excessive number of alarms, which can result in desensitization to alarms and missed alarms. Patient deaths have been attributed to alarm fatigue. Patient safety and regulatory agencies have focused on the issue of alarm fatigue, and it is a 2014 Joint Commission National Patient Safety Goal. Quality improvement projects have demonstrated that strategies such as daily electrocardiogram electrode changes, proper skin preparation, education, and customization of alarm parameters have been able to decrease the number of false alarms. These and other strategies need to be tested in rigorous clinical trials to determine whether they reduce alarm burden without compromising patient safety. PMID:24153215

  11. Vertical-Screw-Auger Conveyer Feeder

    NASA Technical Reports Server (NTRS)

    Walton, Otis (Inventor); Vollmer, Hubert J. (Inventor)

    2016-01-01

    A conical feeder is attached to a vertically conveying screw auger. The feeder is equipped with scoops and rotated from the surface to force-feed regolith the auger. Additional scoops are possible by adding a cylindrical section above the conical funnel section. Such then allows the unit to collect material from swaths larger in diameter than the enclosing casing pipe of the screw auger. A third element includes a flexible screw auger. All three can be used in combination in microgravity and zero atmosphere environments to drill and recover a wide area of subsurface regolith and entrained volatiles through a single access point on the surface.

  12. Effect of artificial feeders on pollen loads of the hummingbirds of Cerro de la Muerte, Costa Rica.

    PubMed

    Avalos, Gerardo; Soto, Alejandra; Alfaro, Willy

    2012-03-01

    hummingbirds carried no pollen. Mist nets located 3km from La Georgina returned few captures (one-to-three specimens) per sampling date, contrasting with observations made before feeders were present. These results suggest that sugar-water feeders gather hummingbirds in over considerable distances drawing them away from flowers. The competitive and antagonistic pattern shown between feeders and flowers indicate that natural pollination system could be significantly altered. Supplementing hummingbirds with food seems likely to interfere with pollination networks already stressed by many anthropogenic effects. PMID:22458209

  13. The control, monitor, and alarm system for the ICT equipment of the ASTRI SST-2M telescope prototype for the Cherenkov Telescope Array

    NASA Astrophysics Data System (ADS)

    Gianotti, Fulvio; Fioretti, Valentina; Tanci, Claudio; Conforti, Vito; Tacchini, Alessandro; Leto, Giuseppe; Gallozzi, Stefano; Bulgarelli, Andrea; Trifoglio, Massimo; Malaguti, Giuseppe; Zoli, Andrea

    2014-07-01

    ASTRI is an Italian flagship project whose first goal is the realization of an end-to-end telescope prototype, named ASTRI SST-2M, for the Cherenkov Telescope Array (CTA). The prototype will be installed in Italy during Fall 2014. A second goal will be the realization of the ASTRI/CTA mini-array which will be composed of seven SST-2M telescopes placed at the CTA Southern Site. The Information and Communication Technology (ICT) equipment necessary to drive the infrastructure for the ASTRI SST-2M prototype is being designed as a complete and stand-alone computer center. The design goal is to obtain basic ICT equipment that might be scaled, with a low level of redundancy, for the ASTRI/CTA mini-array, taking into account the necessary control, monitor and alarm system requirements. The ICT equipment envisaged at the Serra La Nave observing station in Italy, where the ASTRI SST-2M telescope prototype will operate, includes computers, servers and workstations, network devices, an uninterruptable power supply system, and air conditioning systems. Suitable hardware and software tools will allow the parameters related to the behavior and health of each item of equipment to be controlled and monitored. This paper presents the proposed architecture and technical solutions that integrate the ICT equipment in the framework of the Observatory Control System package of the ASTRI/CTA Mini- Array Software System, MASS, to allow their local and remote control and monitoring. An end-toend test case using an Internet Protocol thermometer is reported in detail.

  14. Occurrence and control of sporadic proliferation in growth arrested Swiss 3T3 feeder cells.

    PubMed

    Chugh, Rishi Man; Chaturvedi, Madhusudan; Yerneni, Lakshmana Kumar

    2015-01-01

    Growth arrested Swiss mouse embryonic 3T3 cells are used as feeders to support the growth of epidermal keratinocytes and several other target cells. The 3T3 cells have been extensively subcultured owing to their popularity and wide distribution in the world and, as a consequence selective inclusion of variants is a strong possibility in them. Inadvertently selected variants expressing innate resistance to mitomycin C may continue to proliferate even after treatment with such growth arresting agents. The failure of growth arrest can lead to a serious risk of proliferative feeder contamination in target cell cultures. In this study, we passaged Swiss 3T3 cells (CCL-92, ATCC) by different seeding densities and incubation periods. We tested the resultant cultures for differences in anchorage-independent growth, resumption of proliferation after mitomycin C treatment and occurrence of proliferative feeder contaminants in an epidermal keratinocyte co-culture system. The study revealed subculture dependent differential responses. The cultures of a particular subculture procedure displayed unique cell size distribution and disintegrated completely in 6 weeks following mitomycin C treatment, but their repeated subculture resulted in feeder regrowth as late as 11 weeks after the growth arrest. In contrast, mitomycin C failed to inhibit cell proliferation in cultures of the other subculture schemes and also in a clone that was established from a transformation focus of super-confluent culture. The resultant proliferative feeder cells contaminated the keratinocyte cultures. The anchorage-independent growth appeared in late passages as compared with the expression of mitomycin C resistance in earlier passages. The feeder regrowth was prevented by identifying a safe subculture protocol that discouraged the inclusion of resistant variants. We advocate routine anchorage-independent growth assay and absolute confirmation of feeder disintegration to qualify feeder batches and

  15. Effect of direct eye contact in PTSD related to interpersonal trauma: an fMRI study of activation of an innate alarm system

    PubMed Central

    Steuwe, Carolin; Daniels, Judith K.; Frewen, Paul A.; Densmore, Maria; Pannasch, Sebastian; Beblo, Thomas; Reiss, Jeffrey; Lanius, Ruth A.

    2014-01-01

    In healthy individuals, direct eye contact initially leads to activation of a fast subcortical pathway, which then modulates a cortical route eliciting social cognitive processes. The aim of this study was to gain insight into the neurobiological effects of direct eye-to-eye contact using a virtual reality paradigm in individuals with posttraumatic stress disorder (PTSD) related to prolonged childhood abuse. We examined 16 healthy comparison subjects and 16 patients with a primary diagnosis of PTSD using a virtual reality functional magnetic resonance imaging paradigm involving direct vs averted gaze (happy, sad, neutral) as developed by Schrammel et al. in 2009. Irrespective of the displayed emotion, controls exhibited an increased blood oxygenation level-dependent response during direct vs averted gaze within the dorsomedial prefrontal cortex, left temporoparietal junction and right temporal pole. Under the same conditions, individuals with PTSD showed increased activation within the superior colliculus (SC)/periaqueductal gray (PAG) and locus coeruleus. Our findings suggest that healthy controls react to the exposure of direct gaze with an activation of a cortical route that enhances evaluative ‘top–down’ processes underlying social interactions. In individuals with PTSD, however, direct gaze leads to sustained activation of a subcortical route of eye-contact processing, an innate alarm system involving the SC and the underlying circuits of the PAG. PMID:22977200

  16. Effect of direct eye contact in PTSD related to interpersonal trauma: an fMRI study of activation of an innate alarm system.

    PubMed

    Steuwe, Carolin; Daniels, Judith K; Frewen, Paul A; Densmore, Maria; Pannasch, Sebastian; Beblo, Thomas; Reiss, Jeffrey; Lanius, Ruth A

    2014-01-01

    In healthy individuals, direct eye contact initially leads to activation of a fast subcortical pathway, which then modulates a cortical route eliciting social cognitive processes. The aim of this study was to gain insight into the neurobiological effects of direct eye-to-eye contact using a virtual reality paradigm in individuals with posttraumatic stress disorder (PTSD) related to prolonged childhood abuse. We examined 16 healthy comparison subjects and 16 patients with a primary diagnosis of PTSD using a virtual reality functional magnetic resonance imaging paradigm involving direct vs averted gaze (happy, sad, neutral) as developed by Schrammel et al. in 2009. Irrespective of the displayed emotion, controls exhibited an increased blood oxygenation level-dependent response during direct vs averted gaze within the dorsomedial prefrontal cortex, left temporoparietal junction and right temporal pole. Under the same conditions, individuals with PTSD showed increased activation within the superior colliculus (SC)/periaqueductal gray (PAG) and locus coeruleus. Our findings suggest that healthy controls react to the exposure of direct gaze with an activation of a cortical route that enhances evaluative 'top-down' processes underlying social interactions. In individuals with PTSD, however, direct gaze leads to sustained activation of a subcortical route of eye-contact processing, an innate alarm system involving the SC and the underlying circuits of the PAG. PMID:22977200

  17. Pythium Root Rot (and Feeder Root Necrosis)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Pythium species cause a number of diseases on corn. Among the Pythium diseases, root rot presents the least conspicuous aboveground symptoms. Broadly defined, root rot also includes feeder root necrosis. At least 16 species of Pythium are known to cause root rot of corn. These include P. acanthicu...

  18. Helically corrugated circular waveguides as antenna feeders

    NASA Astrophysics Data System (ADS)

    Jecko, F.; Papiernik, A.

    1983-07-01

    Rotation of the plane of polarization of the TE(11)-mode is predicted and observed in a helically corrugated circular waveguide. Rotation is suppressed by a longitudinal deformation produced on the corrugation. This modified structure can be used as an antenna feeder with low losses.

  19. Puzzle Feeders and Gum Feeders as Environmental Enrichment for Common Marmosets.

    PubMed

    Roberts, R. Lucille; Roytburd, Luba A.; Newman, John D.

    1999-09-01

    Common marmosets (Callithrix jacchus jacchus) are highly social New World monkeys that consume a principally gummivorous and insectivorous diet. We examined the efficacy of two types of foraging devices, Puzzle-Feeders(tm) and gum feeders, as environmental enrichment for marmosets housed singly (n = 16) or in sibling (n = 4) and heterosexual (n = 8) pairs. In experiment 1, marmosets were exposed to each of the two types of foraging devices for three hours, once per week for two weeks. Thirty-minute observations were conducted at the beginning and end of each exposure period. Marmosets in all housing conditions experienced significant reductions in the frequency of stereotyped pacing and significantly less time sitting still while exposed to the foraging devices. Marmosets experienced significantly lower levels of feeder use and significantly more time sitting still at the end of the three-hour exposure than at the beginning. Marmosets that were singly or sibling housed used the devices the most and had the largest reductions in time spent sitting still during enrichment. In experiment 2, singly housed marmosets were given two types of gum feeders, a wooden and a Gumabone(tm) gum feeder, each for a week-long period. Thirty-minute observations were conducted three times per week immediately after loading the feeders with fresh gum. The wooden gum feeders were heavily gouged during the week-long exposure, although significantly less use of both types of gum feeders was observed on the third and fifth days. These results indicated that marmosets in variable social housing conditions can benefit from environmental enrichment additional to social housing, and that foraging enrichment promotes increased non-stereotyped movement and decreased pacing in this species. PMID:12086412

  20. 46 CFR 153.438 - Cargo pressure or temperature alarms required.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... vapor pressure described in § 153.371(b); or (2) An alarm that operates when the cargo's temperature... 46 Shipping 5 2010-10-01 2010-10-01 false Cargo pressure or temperature alarms required. 153.438... Equipment Cargo Temperature Control Systems § 153.438 Cargo pressure or temperature alarms required....

  1. 46 CFR 153.438 - Cargo pressure or temperature alarms required.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... vapor pressure described in § 153.371(b); or (2) An alarm that operates when the cargo's temperature... 46 Shipping 5 2012-10-01 2012-10-01 false Cargo pressure or temperature alarms required. 153.438... Equipment Cargo Temperature Control Systems § 153.438 Cargo pressure or temperature alarms required....

  2. 46 CFR 153.438 - Cargo pressure or temperature alarms required.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... vapor pressure described in § 153.371(b); or (2) An alarm that operates when the cargo's temperature... 46 Shipping 5 2013-10-01 2013-10-01 false Cargo pressure or temperature alarms required. 153.438... Equipment Cargo Temperature Control Systems § 153.438 Cargo pressure or temperature alarms required....

  3. 46 CFR 169.732 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Carbon dioxide and clean agent alarms. 169.732 Section... SCHOOL VESSELS Vessel Control, Miscellaneous Systems, and Equipment Markings § 169.732 Carbon dioxide and clean agent alarms. (a) Each carbon dioxide or clean agent fire extinguishing alarm must...

  4. 46 CFR 169.732 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 169.732 Section... SCHOOL VESSELS Vessel Control, Miscellaneous Systems, and Equipment Markings § 169.732 Carbon dioxide and clean agent alarms. (a) Each carbon dioxide or clean agent fire extinguishing alarm must...

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

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 169.732 Section... SCHOOL VESSELS Vessel Control, Miscellaneous Systems, and Equipment Markings § 169.732 Carbon dioxide and clean agent alarms. (a) Each carbon dioxide or clean agent fire extinguishing alarm must...

  6. 46 CFR 58.25-65 - Feeder circuits.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... electric-driven steering-gear power units must have at least two feeder circuits, which must be separated... multiple electric-driven power units must be arranged so that each power unit is supplied by a separate feeder. (c) Each feeder circuit must have a disconnect switch in the steering-gear compartment. (d)...

  7. 46 CFR 58.25-65 - Feeder circuits.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... electric-driven steering-gear power units must have at least two feeder circuits, which must be separated... multiple electric-driven power units must be arranged so that each power unit is supplied by a separate feeder. (c) Each feeder circuit must have a disconnect switch in the steering-gear compartment. (d)...

  8. 46 CFR 58.25-65 - Feeder circuits.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... electric-driven steering-gear power units must have at least two feeder circuits, which must be separated... multiple electric-driven power units must be arranged so that each power unit is supplied by a separate feeder. (c) Each feeder circuit must have a disconnect switch in the steering-gear compartment. (d)...

  9. 46 CFR 58.25-65 - Feeder circuits.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... electric-driven steering-gear power units must have at least two feeder circuits, which must be separated... multiple electric-driven power units must be arranged so that each power unit is supplied by a separate feeder. (c) Each feeder circuit must have a disconnect switch in the steering-gear compartment. (d)...

  10. 46 CFR 58.25-65 - Feeder circuits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... electric-driven steering-gear power units must have at least two feeder circuits, which must be separated... multiple electric-driven power units must be arranged so that each power unit is supplied by a separate feeder. (c) Each feeder circuit must have a disconnect switch in the steering-gear compartment. (d)...

  11. Photocopy of drawing, "Sluiceway at Combined Locks, Glens Falls Feeder" ...

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

    Photocopy of drawing, "Sluiceway at Combined Locks, Glens Falls Feeder" (from Champlain canal structure book) 6-45, New York State Archives and Manuscripts, Albany, New York), c. 1858 - Glens Falls Feeder, Sluice, Along south side of Glens Falls Feeder between locks 10 & 20, Hudson Falls, Washington County, NY

  12. 7 CFR 58.625 - Fruit or syrup feeders.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Fruit or syrup feeders. 58.625 Section 58.625 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards....625 Fruit or syrup feeders. Fruit or syrup feeders inject flavoring material into the...

  13. 7 CFR 58.625 - Fruit or syrup feeders.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 3 2013-01-01 2013-01-01 false Fruit or syrup feeders. 58.625 Section 58.625 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards....625 Fruit or syrup feeders. Fruit or syrup feeders inject flavoring material into the...

  14. 7 CFR 58.625 - Fruit or syrup feeders.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 3 2014-01-01 2014-01-01 false Fruit or syrup feeders. 58.625 Section 58.625 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards....625 Fruit or syrup feeders. Fruit or syrup feeders inject flavoring material into the...

  15. 7 CFR 58.625 - Fruit or syrup feeders.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 3 2012-01-01 2012-01-01 false Fruit or syrup feeders. 58.625 Section 58.625 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards....625 Fruit or syrup feeders. Fruit or syrup feeders inject flavoring material into the...

  16. 7 CFR 58.625 - Fruit or syrup feeders.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 3 2011-01-01 2011-01-01 false Fruit or syrup feeders. 58.625 Section 58.625 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards....625 Fruit or syrup feeders. Fruit or syrup feeders inject flavoring material into the...

  17. Changes in Default Alarm Settings and Standard In-Service are Insufficient to Improve Alarm Fatigue in an Intensive Care Unit: A Pilot Project

    PubMed Central

    Gomez, Tiffany Michelle; Tarriela, Albert Fajardo; Reed, Charles Calhoun; Paper, Bruce Michael

    2016-01-01

    Background Clinical alarm systems safety is a national concern, specifically in intensive care units (ICUs) where alarm rates are known to be the highest. Interventional projects that examined the effect of changing default alarm settings on overall alarm rate and on clinicians’ attitudes and practices toward clinical alarms and alarm fatigue are scarce. Objective To examine if (1) a change in default alarm settings of the cardiac monitors and (2) in-service nursing education on cardiac monitor use in an ICU would result in reducing alarm rate and in improving nurses’ attitudes and practices toward clinical alarms. Methods This quality improvement project took place in a 20-bed transplant/cardiac ICU with a total of 39 nurses. We implemented a unit-wide change of default alarm settings involving 17 parameters of the cardiac monitors. All nurses received an in-service education on monitor use. Alarm data were collected from the audit log of the cardiac monitors 10 weeks before and 10 weeks after the change in monitors’ parameters. Nurses’ attitudes and practices toward clinical alarms were measured using the Healthcare Technology Foundation National Clinical Alarms Survey, pre- and postintervention. Results Alarm rate was 87.86 alarms/patient day (a total of 64,500 alarms) at the preintervention period compared to 59.18 alarms/patient day (49,319 alarms) postintervention (P=.01). At baseline, Arterial Blood Pressure (ABP), Pair Premature Ventricular Contractions (PVCs), and Peripheral Capillary Oxygen Saturation (SpO2) alarms were the highest. ABP and SpO2 alarms remained among the top three at the postproject period. Out of the 39 ICU nurses, 24 (62%) provided complete pre- and postproject survey questionnaires. Compared to the preintervention survey, no remarkable changes in the postproject period were reported in nurses’ attitudes. Themes in the narrative data were related to poor usability of cardiac monitors and the frequent alarms. The data showed

  18. "Turn it off!": diabetes device alarm fatigue considerations for the present and the future.

    PubMed

    Shivers, Joseph P; Mackowiak, Linda; Anhalt, Henry; Zisser, Howard

    2013-05-01

    Safe and widespread use of diabetes technology is constrained by alarm fatigue: when someone receives so many alarms that he or she becomes less likely to respond appropriately. Alarm fatigue and related usability issues deserve consideration at every stage of alarm system design, especially as new technologies expand the potential number and complexity of alarms. The guiding principle should be patient wellbeing, while taking into consideration the regulatory and liability issues that sometimes contribute to building excessive alarms. With examples from diabetes devices, we illustrate two complementary frameworks for alarm design: a "patient safety first" perspective and a focus on human factors. We also describe opportunities and challenges that will come with new technologies such as remote monitoring, adaptive alarms, and ever-closer integration of glucose sensing with insulin delivery. PMID:23759412

  19. Impact of V2G on Distribution Feeder: A Power Loss Reduction Approach

    NASA Astrophysics Data System (ADS)

    Chukwu, Uwakwe C.; Mahajan, Satish M.

    2013-08-01

    The penetration of Vehicle-to-Grid (V2G) into the electrical distribution system has potential to create room for many operational benefits. A V2G facility installed on a distribution feeder line segment may affect power loss in the distribution system. Mathematical models are developed to study how magnitude of V2G reactive power injection and different mixes of uniformly distributed loads and lumped loads can impact power loss on a distribution system feeder. The V2G facilities assumed in this research are V2G parking lots with provision for injecting reactive currents into the feeder of a distribution network. It is shown that loss reduction can be greatly influenced by the pattern of loading, the amount of V2G reactive injection as well as position and number of V2G parking lot along the feeder segment. Useful results are obtained, with a promise that more than 95% power loss reduction (relative to power loss in the system without V2G installed) is possible by optimally locating a V2G parking lot along the feeder. It is observed that location and capacity injection of a V2G facility are the most critical for loss reduction. It was concluded that proper system planning and operational practice are required in order to reduce power losses.

  20. Evaluation of the concrete shield compositions from the 2010 criticality accident alarm system benchmark experiments at the CEA Valduc SILENE facility

    SciTech Connect

    Miller, Thomas Martin; Celik, Cihangir; Dunn, Michael E; Wagner, John C; McMahan, Kimberly L; Authier, Nicolas; Jacquet, Xavier; Rousseau, Guillaume; Wolff, Herve; Savanier, Laurence; Baclet, Nathalie; Lee, Yi-kang; Trama, Jean-Christophe; Masse, Veronique; Gagnier, Emmanuel; Naury, Sylvie; Blanc-Tranchant, Patrick; Hunter, Richard; Kim, Soon; Dulik, George Michael; Reynolds, Kevin H.

    2015-01-01

    In October 2010, a series of benchmark experiments were conducted at the French Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA) Valduc SILENE facility. These experiments were a joint effort between the United States Department of Energy Nuclear Criticality Safety Program and the CEA. The purpose of these experiments was to create three benchmarks for the verification and validation of radiation transport codes and evaluated nuclear data used in the analysis of criticality accident alarm systems. This series of experiments consisted of three single-pulsed experiments with the SILENE reactor. For the first experiment, the reactor was bare (unshielded), whereas in the second and third experiments, it was shielded by lead and polyethylene, respectively. The polyethylene shield of the third experiment had a cadmium liner on its internal and external surfaces, which vertically was located near the fuel region of SILENE. During each experiment, several neutron activation foils and thermoluminescent dosimeters (TLDs) were placed around the reactor. Nearly half of the foils and TLDs had additional high-density magnetite concrete, high-density barite concrete, standard concrete, and/or BoroBond shields. CEA Saclay provided all the concrete, and the US Y-12 National Security Complex provided the BoroBond. Measurement data from the experiments were published at the 2011 International Conference on Nuclear Criticality (ICNC 2011) and the 2013 Nuclear Criticality Safety Division (NCSD 2013) topical meeting. Preliminary computational results for the first experiment were presented in the ICNC 2011 paper, which showed poor agreement between the computational results and the measured values of the foils shielded by concrete. Recently the hydrogen content, boron content, and density of these concrete shields were further investigated within the constraints of the previously available data. New computational results for the first experiment are now available that

  1. Perceptual specificity in the alarm calls of Gunnison's prairie dogs.

    PubMed

    Kiriazis, Judith; Slobodchikoff, C N

    2006-07-01

    Gunnison's prairie dogs have a complex alarm communication system. We show that the escape responses of prairie dogs to naturally occurring live predators differed depending upon the species of predator. We also show that playbacks of alarm calls that were elicited originally by the live predators produced the same escape responses as the live predators themselves. The escape responses fell into two qualitatively different categories: running to the burrow and diving inside for hawks and humans, and standing upright outside the burrow for coyotes and dogs. Within these two categories there were differences in response. For hawks, only the prairie dogs that were in the direct flight path of a stooping red-tailed hawk ran to their burrows and dove inside, while for humans and human alarm call playbacks there was a colony-wide running to the burrows and diving inside. For coyotes and coyote alarm call playbacks there was a colony-wide running to the burrows and standing alert at the burrow rims, while for domestic dogs and playbacks of alarm calls for domestic dogs the prairie dogs assumed an alert posture wherever they were feeding, but did not run to their burrows. These responses to both the live predators and to predator-elicited alarm calls suggest that the alarm calls of Gunnison's prairie dogs contain meaningful referential information about the categories of predators that approach a colony of prairie dogs. PMID:16529880

  2. ANALYSIS OF DISTRIBUTION FEEDER LOSSES DUE TO ADDITION OF DISTRIBUTED PHOTOVOLTAIC GENERATORS

    SciTech Connect

    Tuffner, Francis K.; Singh, Ruchi

    2011-08-09

    Distributed generators (DG) are small scale power supplying sources owned by customers or utilities and scattered throughout the power system distribution network. Distributed generation can be both renewable and non-renewable. Addition of distributed generation is primarily to increase feeder capacity and to provide peak load reduction. However, this addition comes with several impacts on the distribution feeder. Several studies have shown that addition of DG leads to reduction of feeder loss. However, most of these studies have considered lumped load and distributed load models to analyze the effects on system losses, where the dynamic variation of load due to seasonal changes is ignored. It is very important for utilities to minimize the losses under all scenarios to decrease revenue losses, promote efficient asset utilization, and therefore, increase feeder capacity. This paper will investigate an IEEE 13-node feeder populated with photovoltaic generators on detailed residential houses with water heater, Heating Ventilation and Air conditioning (HVAC) units, lights, and other plug and convenience loads. An analysis of losses for different power system components, such as transformers, underground and overhead lines, and triplex lines, will be performed. The analysis will utilize different seasons and different solar penetration levels (15%, 30%).

  3. Volumetric Security Alarm Based on a Spherical Ultrasonic Transducer Array

    NASA Astrophysics Data System (ADS)

    Sayin, Umut; Scaini, Davide; Arteaga, Daniel

    Most of the existent alarm systems depend on physical or visual contact. The detection area is often limited depending on the type of the transducer, creating blind spots. Our proposition is a truly volumetric alarm system that can detect any movement in the intrusion area, based on monitoring the change over time of the impulse response of the room, which acts as an acoustic footprint. The device depends on an omnidirectional ultrasonic transducer array emitting sweep signals to calculate the impulse response in short intervals. Any change in the room conditions is monitored through a correlation function. The sensitivity of the alarm to different objects and different environments depends on the sweep duration, sweep bandwidth, and sweep interval. Successful detection of intrusions also depends on the size of the monitoring area and requires an adjustment of emitted ultrasound power. Strong air flow affects the performance of the alarm. A method for separating moving objects from strong air flow is devised using an adaptive thresholding on the correlation function involving a series of impulse response measurements. The alarm system can be also used for fire detection since air flow sourced from heating objects differ from random nature of the present air flow. Several measurements are made to test the integrity of the alarm in rooms sizing from 834-2080m3 with irregular geometries and various objects. The proposed system can efficiently detect intrusion whilst adequate emitting power is provided.

  4. 46 CFR 182.530 - Bilge high level alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Bilge high level alarms. 182.530 Section 182.530 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) MACHINERY INSTALLATION Bilge and Ballast Systems § 182.530 Bilge high level alarms. (a) On a vessel of at least 7.9 meters (26 feet) in...

  5. An experimental investigation of the effects of alarm processing and display on operator performance

    SciTech Connect

    O`Hara, J.; Brown, W.; Hallbert, B.; Skraaning, G.; Wachtel, J.; Persensky, J.

    1998-03-01

    This paper describes a research program sponsored by the US Nuclear Regulatory Commission to address the human factors engineering (HFE) aspects of nuclear power plant alarm systems. The overall objective of the program is to develop HFE review guidance for advanced alarm systems. As part of this program, guidance has been developed based on a broad base of technical and research literature. In the course of guidance development, aspects of alarm system design for which the technical basis was insufficient to support complete guidance development were identified. The primary purpose of the research reported in this paper was to evaluate the effects of three of these alarm system design characteristics on operator performance in order to contribute to the understanding of potential safety issues and to provide data to support the development of design review guidance in these areas. Three alarm system design characteristics studied were (1) alarm processing (degree of alarm reduction), (2) alarm availability (dynamic prioritization and suppression), and (3) alarm display (a dedicated tile format, a mixed tile and message list format, and a format in which alarm information is integrated into the process displays). A secondary purpose was to provide confirmatory evidence of selected alarm system guidance developed in an earlier phase of the project. The alarm characteristics were combined into eight separate experimental conditions. Six, two-person crews of professional nuclear power plant operators participated in the study. Following training, each crew completed 16 test trials which consisted of two trials in each of the eight experimental conditions (one with a low-complexity scenario and one with a high-complexity scenario). Measures of process performance, operator task performance, situation awareness, and workload were obtained. In addition, operator opinions and evaluations of the alarm processing and display conditions were collected. No deficient

  6. Development of a pilot-scale kinetic extruder feeder system and test program. Second quarterly technical progress report, January-March 1981

    SciTech Connect

    Not Available

    1981-04-15

    This report covers the work carried out during the January-March 1981 quarter of the program. Preparations are being made to ready the equipment for the moisture tolerance test program. The main effort described pertains to the redesign and procurement of the main shaft bearing and seal system. To enhance the chances of achieving the program objectives, the recommendation was made by Lockheed to use a conventional roller bearing for the present program instead of the advanced water-lubricated bearing. Nevertheless, the need exists for better long-term solutions to the bearing and seal problem, especially in view of the eventual requirement to scale the equipment to larger sizes. It is recommended that the program proceed as planned.

  7. Characterisation of human fibroblasts as keratinocyte feeder layer using p63 isoforms status.

    PubMed

    Auxenfans, Céline; Thépot, Amélie; Justin, Virginie; Hautefeuille, Agnès; Shahabeddin, Lili; Damour, Odile; Hainaut, Pierre

    2009-01-01

    Large-scale culture of primary keratinocytes allows the production of large epidermal sheet surfaces for the treatment of extensive skin burns. This method is dependent upon the capacity to establish cultures of proliferating keratinocytes in conditions compatible with their clonal expansion while maintaining their capacity to differentiate into the typical squamous pattern of human epidermis. Feeder layers are critical in this process because the fibroblasts that compose this layer serve as a source of adhesion, growth and differentiation factors. In this report, we have characterise the expression patterns of p63 isoforms in primary keratinocytes cultured on two different feeder layer systems, murine 3T3 and human fibroblasts. We show that with the latter, keratinocytes express a higher ratio of Delta N to TAp63 isoform, in relation with higher clonogenic potential. These results indicate that human fibroblasts represent an adequate feeder layer system to support the culture of primary human keratinocytes. PMID:20042803

  8. Expansion of NK Cells Using Genetically Engineered K562 Feeder Cells.

    PubMed

    Phan, Minh-Trang Thi; Lee, Seung-Hwan; Kim, Sang-Ki; Cho, Duck

    2016-01-01

    Natural killer (NK) cells can be expanded upon activation by proliferative cytokines (such as IL-2 and IL-15). The NK cell expansion can be greatly enhanced by proteins from feeder cells such as tumor cell lines or PBMCs. Therefore, coculture systems of irradiated feeder cells and NK cells in media containing IL-2 and IL-15 have been developed to generate large numbers of NK cells, although NK cell expansion protocol using anti-CD3 antibody (OKT-3) without feeder cells has also been developed. Commonly used feeder cell lines are RPMI8866, Epstein-Barr lymphoblastoid cell line (EBV-LCL), and K562. Stimulation with NK-sensitive K562 cells is known to augment NK cell proliferation to IL-2, IL-15, and IL-21 in combination.Recently, remarkable NK cell-expansion rates are achieved when genetically engineered (GE) feeder cells are used. Dr. Dario Campana's group found that membrane-bound IL-15 and 4-1BBL, coexpressed by K562 cells, acted synergistically to augment K562-specific NK stimulatory capacity, resulting in vigorous expansion of peripheral blood CD56(+) CD3(-) NK cells without concomitant growth of T lymphocytes. Here, we describe an in vitro expansion method of human NK cells among PBMCs by coculturing with GE_K562 cells. PMID:27177665

  9. 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

  10. 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.

  11. 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.

  12. A microprocessor-based digital feeder monitor with high-impedance fault detection

    SciTech Connect

    Patterson, R.; Tyska, W.; Russell, B.D.

    1994-12-31

    The high impedance fault detection technology developed at Texas A&M University after more than a decade of research, funded in large part by the Electric Power Research Institute, has been incorporated into a comprehensive monitoring device for overhead distribution feeders. This digital feeder monitor (DFM) uses a high waveform sampling rate for the ac current and voltage inputs in conjunction with a high-performance reduced instruction set (RISC) microprocessor to obtain the frequency response required for arcing fault detection and power quality measurements. Expert system techniques are employed to assure security while maintaining dependability. The DFM is intended to be applied at a distribution substation to monitor one feeder. The DFM is packaged in a non-drawout case which fits the panel cutout for a GE IAC overcurrent relay to facilitate retrofits at the majority of sites were electromechanical overcurrent relays already exist.

  13. Stocker/feeder cattle standardized performance analysis.

    PubMed

    McGrann, J M; McAdams, J

    1995-07-01

    The Standardized Performance Analysis (SPA) for stocker/feed cattle is a recommended set of production and financial performance analysis guidelines developed specifically for the grazing, growing, and finishing phases of beef cattle production. Guidelines were developed by members of the National Cattlemen's Association (NCA), Extension Specialists, and the National Integrated Resource Management Coordination Committee to provide beef cattle producers with a comprehensive, standardized means of measuring, analyzing, and reporting the performance and profitability of an operation. This article describes and illustrates through an example the performance measures chosen. The NCA certifies software and education materials conforming to the Stocker/Feeder Guidelines. PMID:7584818

  14. The helpful or hindering effects of in-hospital patient monitor alarms on nurses: a qualitative analysis.

    PubMed

    Varpio, Lara; Kuziemsky, Craig; MacDonald, Charlotte; King, W James

    2012-04-01

    Patient monitors generate alarms to signal changes in vital signs. Some research suggests these alarms can improve patient safety. Other reports caution that these systems generate false alarms and create nursing workflow interruptions. These findings require contextualization by qualitatively investigating the lived experiences of nurses working with these monitors. Research into the dynamics involved in nursing responses to alarms can provide insights for monitor development and implementation. This study's purposes were (1) to describe the frequency of alarms generated by patient monitors and nursing responses and (2) to report nurses' explanations of the impact of alarms on workflow and strategies for responding to alarms. Forty-nine hours of observations and 14 interviews were conducted at a Canadian medical center. Four hundred forty-six monitor alarms (1 every 6.59 minutes) were observed. Of these, 70% had no immediate response from nurses. Furthermore, 34 red alarms (potential life-threatening) were observed, with 41% having no immediate response. Nurses reported feeling overloaded by alarm frequency. They described learning to interpret alarm data and developing workaround strategies (eg, ignoring alarms). Paradoxically, alarms prompted nurses to regularly consider and interpret patient information. We suggest the interpretive work associated with workarounds may hold benefits mitigating the potential harms of ignoring alarms. PMID:22156767

  15. 47 CFR 25.258 - Sharing between NGSO MSS Feeder links Stations and GSO FSS services in the 29.25-29.5 GHz Bands.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    .... (a) Operators of NGSO MSS feeder link earth stations and GSO FSS earth stations in the band 29.25 to... MSS feeder link earth station complexes, that will minimize instances of unacceptable interference to the GSO FSS space stations. Earth station licensees operating with GSO FSS systems shall be capable...

  16. 47 CFR 25.258 - Sharing between NGSO MSS Feeder links Stations and GSO FSS services in the 29.25-29.5 GHz Bands.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    .... (a) Operators of NGSO MSS feeder link earth stations and GSO FSS earth stations in the band 29.25 to... MSS feeder link earth station complexes, that will minimize instances of unacceptable interference to the GSO FSS space stations. Earth station licensees operating with GSO FSS systems shall be capable...

  17. 47 CFR 25.258 - Sharing between NGSO MSS Feeder links Stations and GSO FSS services in the 29.25-29.5 GHz Bands.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    .... (a) Operators of NGSO MSS feeder link earth stations and GSO FSS earth stations in the band 29.25 to... MSS feeder link earth station complexes, that will minimize instances of unacceptable interference to the GSO FSS space stations. Earth station licensees operating with GSO FSS systems shall be capable...

  18. 47 CFR 25.258 - Sharing between NGSO MSS Feeder links Stations and GSO FSS services in the 29.25-29.5 GHz Bands.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    .... (a) Operators of NGSO MSS feeder link earth stations and GSO FSS earth stations in the band 29.25 to... MSS feeder link earth station complexes, that will minimize instances of unacceptable interference to the GSO FSS space stations. Earth station licensees operating with GSO FSS systems shall be capable...

  19. 47 CFR 25.258 - Sharing between NGSO MSS Feeder links Stations and GSO FSS services in the 29.25-29.5 GHz Bands.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    .... (a) Operators of NGSO MSS feeder link earth stations and GSO FSS earth stations in the band 29.25 to... MSS feeder link earth station complexes, that will minimize instances of unacceptable interference to the GSO FSS space stations. Earth station licensees operating with GSO FSS systems shall be capable...

  20. 21 CFR 870.1025 - Arrhythmia detector and alarm (including ST-segment measurement and alarm).

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Arrhythmia detector and alarm (including ST... Diagnostic Devices § 870.1025 Arrhythmia detector and alarm (including ST-segment measurement and alarm). (a) Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to...

  1. 21 CFR 870.1025 - Arrhythmia detector and alarm (including ST-segment measurement and alarm).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Arrhythmia detector and alarm (including ST... Diagnostic Devices § 870.1025 Arrhythmia detector and alarm (including ST-segment measurement and alarm). (a) Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to...

  2. 21 CFR 870.1025 - Arrhythmia detector and alarm (including ST-segment measurement and alarm).

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Arrhythmia detector and alarm (including ST... Diagnostic Devices § 870.1025 Arrhythmia detector and alarm (including ST-segment measurement and alarm). (a) Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to...

  3. 21 CFR 870.1025 - Arrhythmia detector and alarm (including ST-segment measurement and alarm).

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Arrhythmia detector and alarm (including ST... Diagnostic Devices § 870.1025 Arrhythmia detector and alarm (including ST-segment measurement and alarm). (a) Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to...

  4. 21 CFR 870.1025 - Arrhythmia detector and alarm (including ST-segment measurement and alarm).

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Arrhythmia detector and alarm (including ST... Diagnostic Devices § 870.1025 Arrhythmia detector and alarm (including ST-segment measurement and alarm). (a) Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to...

  5. Hypo- and Hyperglycemic Alarms: Devices and Algorithms.

    PubMed

    Howsmon, Daniel; Bequette, B Wayne

    2015-09-01

    Soon after the discovery that insulin regulates blood glucose by Banting and Best in 1922, the symptoms and risks associated with hypoglycemia became widely recognized. This article reviews devices to warn individuals of impending hypo- and hyperglycemia; biosignals used by these devices include electroencephalography, electrocardiography, skin galvanic resistance, diabetes alert dogs, and continuous glucose monitors (CGMs). While systems based on other technology are increasing in performance and decreasing in size, CGM technology remains the best method for both reactive and predictive alarming of hypo- or hyperglycemia. PMID:25931581

  6. Impact of Increasing Distributed Wind Power and Wind Turbine Siting on Rural Distribution Feeder Voltage Profiles: Preprint

    SciTech Connect

    Allen, A.; Zhang, Y. C.; Hodge, B. M.

    2013-09-01

    Many favorable wind energy resources in North America are located in remote locations without direct access to the transmission grid. Building transmission lines to connect remotely-located wind power plants to large load centers has become a barrier to increasing wind power penetration in North America. By connecting utility-sized megawatt-scale wind turbines to the distribution system, wind power supplied to consumers could be increased greatly. However, the impact of including megawatt-scale wind turbines on distribution feeders needs to be studied. The work presented here examined the impact that siting and power output of megawatt-scale wind turbines have on distribution feeder voltage. This is the start of work to present a general guide to megawatt-scale wind turbine impact on the distribution feeder and finding the amount of wind power that can be added without adversely impacting the distribution feeder operation, reliability, and power quality.

  7. Effects of feeder cells (human cancer cell lines) on the development of mouse embryos by co-culture.

    PubMed

    Ishiwata, I; Tokieda, Y; Ishiwata, C; Okane, N; Iguchi, M; Sato, K; Ishikawa, H

    1997-12-01

    In order to establish the best co-culture system on embryogenesis such as egg fertilization, egg cleavage, blastocyst formation, hatching and implantation etc., several kinds of cell lines as a feeder cell and mouse fertilized eggs (zygotes) were co-cultured in the organ culture dish, and embryotrophic effects of feeder cells were investigated. Best feeder cell on the embryogenesis was SKG-II cell line derived from squamous cell carcinoma of human uterine cervix which was chosen from 10 of the human tumor cell lines. Furthermore, in order to isolate and determinate embryotrophic factors produced by feeder cells, we established a SKG-II SF subline which was grown in serum free medium derived from SKG-II cell line. The SKG-II SF cell line secreted an epidermal growth factor (EGF) into the medium. Also, cleavaged egg produced and secreted interleukin (IL)-1 alpha into the medium. PMID:9573483

  8. Foster-Miller's development of dry coal feed systems

    NASA Technical Reports Server (NTRS)

    Harding, J. C.

    1977-01-01

    Dry coal feeder systems developed for pressurized conversion processes were carried through a laboratory scale development program. These concepts include: (1) a centrifugal solids feeder; (2) a fluidized piston feeder; (3) a linear pocket feeder; and (4) a compacted coal plug feeder. Results of laboratory model testing of all concepts are reviewed.

  9. Development of an extruder-feeder biomass direct liquefaction process

    SciTech Connect

    White, D.H.; Wolf, D. . Dept. of Chemical Engineering)

    1991-10-01

    As an abundant, renewable, domestic energy resource, biomass could help the United States reduce its dependence on imported oil. Biomass is the only renewable energy technology capable of addressing the national need for liquid transportation fuels. Thus, there is an incentive to develop economic conversion processes for converting biomass, including wood, into liquid fuels. Through research sponsored by the US DOE's Biomass Thermochemical Conversion Program, the University of Arizona has developed a unique biomass direct liquefaction system. The system features a modified single-screw extruder capable of pumping solid slurries containing as high as 60 wt % wood flour in wood oil derived vacuum bottoms at pressures up to 3,000 psi. By comparison, conventional pumping systems are capable of pumping slurries containing only 10--20 wt % wood flour in wood oil under similar conditions. The extruder-feeder has been integrated with a unique reactor to form a system which offers potential for improving high pressure biomass direct liquefaction technology. The extruder-feeder acts simultaneously as both a feed preheater and a pumping device for injecting wood slurries into a 3,000 psi pressure reactor in the biomass liquefaction process. An experimental facility was constructed during 1983--84. Following shakedown operations, wood crude oil was produced by mid-1985. During the period January 1985 through July 1988, a total of 57 experimental continuous biomass liquefaction runs were made using White Birch wood feedstock. Good operability was achieved at slurry feed rates up to 30 lb/hr, reactor pressures from 800 to 3,000 psi and temperatures from 350{degrees}C to 430{degrees}C under conditions covering a range of carbon monoxide feed rates and sodium carbonate catalyst addition. Crude wood oils containing as little as 6--10 wt % residual oxygen were produced. 43 refs., 81 figs., 52 tabs.

  10. Alarm pheromone processing in the ant brain: an evolutionary perspective.

    PubMed

    Mizunami, Makoto; Yamagata, Nobuhiro; Nishino, Hiroshi

    2010-01-01

    Social insects exhibit sophisticated communication by means of pheromones, one example of which is the use of alarm pheromones to alert nestmates for colony defense. We review recent advances in the understanding of the processing of alarm pheromone information in the ant brain. We found that information about formic acid and n-undecane, alarm pheromone components, is processed in a set of specific glomeruli in the antennal lobe of the ant Camponotus obscuripes. Alarm pheromone information is then transmitted, via projection neurons (PNs), to the lateral horn and the calyces of the mushroom body of the protocerebrum. In the lateral horn, we found a specific area where terminal boutons of alarm pheromone-sensitive PNs are more densely distributed than in the rest of the lateral horn. Some neurons in the protocerebrum responded specifically to formic acid or n-undecane and they may participate in the control of behavioral responses to each pheromone component. Other neurons, especially those originating from the mushroom body lobe, responded also to non-pheromonal odors and may play roles in integration of pheromonal and non-pheromonal signals. We found that a class of neurons receive inputs in the lateral horn and the mushroom body lobe and terminate in a variety of premotor areas. These neurons may participate in the control of aggressive behavior, which is sensitized by alarm pheromones and is triggered by non-pheromonal sensory stimuli associated with a potential enemy. We propose that the alarm pheromone processing system has evolved by differentiation of a part of general odor processing system. PMID:20676235

  11. Co-ordination of directional overcurrent protection with load current for parallel feeders

    SciTech Connect

    Wright, J.W.; Lloyd, G.; Hindle, P.J.

    1999-11-01

    Directional phase overcurrent relays are commonly applied at the receiving ends of parallel feeders or transformer feeders. Their purpose is to ensure full discrimination of main or back-up power system overcurrent protection for a fault near the receiving end of one feeder. This paper reviews this type of relay application and highlights load current setting constraints for directional protection. Such constraints have not previously been publicized in well-known text books. A directional relay current setting constraint that is suggested in some text books is based purely on thermal rating considerations for older technology relays. This constraint may not exist with modern numerical relays. In the absence of any apparent constraint, there is a temptation to adopt lower current settings with modern directional relays in relation to reverse load current at the receiving ends of parallel feeders. This paper identifies the danger of adopting very low current settings without any special relay feature to ensure protection security with load current during power system faults. A system incident recorded by numerical relays is also offered to highlight this danger. In cases where there is a need to infringe the identified constraints an implemented and testing relaying technique is proposed.

  12. 26 CFR 1.502-1 - Feeder organizations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 7 2011-04-01 2009-04-01 true Feeder organizations. 1.502-1 Section 1.502-1...) INCOME TAXES (CONTINUED) Exempt Organizations § 1.502-1 Feeder organizations. (a) In the case of an organization operated for the primary purpose of carrying on a trade or business for profit, exemption is...

  13. 103. CANAL AT THE ENTRANCE TO THE POMPTON FEEDER NEAR ...

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

    103. CANAL AT THE ENTRANCE TO THE POMPTON FEEDER NEAR MOUNTAIN VIEW, NEW JERSEY. THE POMPTON FEEDER BOATS TO TRAVEL NORTH 4.26 MILES TO TO POMPTON AS WELL AS PROVIDING THE MAIN CANAL WITH WATER FROM GREENWOOD LAKE. A MODIFIED QUEEN POST TRUSS BRIDGE SPANS THE CANAL IN THE FOREGROUND. - Morris Canal, Phillipsburg, Warren County, NJ

  14. Faculty Articulation with Feeder High Schools and Local Employers.

    ERIC Educational Resources Information Center

    Parrott, Marietta

    As a first step in developing an articulation plan with feeder high schools, a College of the Sequoias (COS) task force developed and distributed a survey to all full-time faculty members to determine if individual faculty members were articulating with feeder high schools and local businesses, and if they would be willing to participate in an…

  15. An accurate demand feeder for fish, suitable for microcomputer control.

    PubMed

    Beach, M A; Baker, G E; Roberts, M G

    1986-01-01

    This paper describes an easily constructed and inexpensive demand feeder. The feeder is driven by an AC synchronous motor and gearbox and is suitable for microcomputer control. It will operate with inexpensive commercially available pelleted fish food, and will consistently deliver a single pellet for each operation of the motor. The components and materials can be purchased for approximately 23 pounds. PMID:3961018

  16. 46 CFR 111.75-1 - Lighting feeders.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Lighting feeders. 111.75-1 Section 111.75-1 Shipping... REQUIREMENTS Lighting Circuits and Protection § 111.75-1 Lighting feeders. (a) Passenger vessels. On a passenger vessel with fire bulkheads forming main vertical and horizontal fire zones, the...

  17. 46 CFR 111.75-1 - Lighting feeders.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Lighting feeders. 111.75-1 Section 111.75-1 Shipping... REQUIREMENTS Lighting Circuits and Protection § 111.75-1 Lighting feeders. (a) Passenger vessels. On a passenger vessel with fire bulkheads forming main vertical and horizontal fire zones, the...

  18. 46 CFR 111.75-1 - Lighting feeders.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Lighting feeders. 111.75-1 Section 111.75-1 Shipping... REQUIREMENTS Lighting Circuits and Protection § 111.75-1 Lighting feeders. (a) Passenger vessels. On a passenger vessel with fire bulkheads forming main vertical and horizontal fire zones, the...

  19. 46 CFR 111.75-1 - Lighting feeders.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Lighting feeders. 111.75-1 Section 111.75-1 Shipping... REQUIREMENTS Lighting Circuits and Protection § 111.75-1 Lighting feeders. (a) Passenger vessels. On a passenger vessel with fire bulkheads forming main vertical and horizontal fire zones, the...

  20. 46 CFR 111.75-1 - Lighting feeders.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Lighting feeders. 111.75-1 Section 111.75-1 Shipping... REQUIREMENTS Lighting Circuits and Protection § 111.75-1 Lighting feeders. (a) Passenger vessels. On a passenger vessel with fire bulkheads forming main vertical and horizontal fire zones, the...

  1. 19. DETAIL OF STAMP BATTERY AUTOMATIC FEEDER, LOOKING EAST. THIS ...

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

    19. DETAIL OF STAMP BATTERY AUTOMATIC FEEDER, LOOKING EAST. THIS IS THE MIDDLE OF THREE FEEDERS, ONE FOR EACH STAMP BATTERY. THE CHUTE (UPPER RIGHT) INTRODUCED THE CRUSHED ORE FROM THE ORE BIN. FLOW WAS CONTROLLED BY A SLIDING DOOR ON THE UPPER LEVEL. - Skidoo Mine, Park Route 38 (Skidoo Road), Death Valley Junction, Inyo County, CA

  2. 26 CFR 1.502-1 - Feeder organizations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 7 2010-04-01 2010-04-01 true Feeder organizations. 1.502-1 Section 1.502-1...) INCOME TAXES (CONTINUED) Exempt Organizations § 1.502-1 Feeder organizations. (a) In the case of an organization operated for the primary purpose of carrying on a trade or business for profit, exemption is...

  3. Alarm sensor apparatus for closures

    DOEpatents

    Carlson, James A.; Stoddard, Lawrence M.

    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.

  4. 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.

  5. Development of an extruder-feeder biomass direct liquefaction process

    SciTech Connect

    White, D.H.; Wolf, D. . Dept. of Chemical Engineering)

    1991-10-01

    As an abundant, renewable, domestic energy resource, biomass could help the United States reduce its dependence on imported oil. Biomass is the only renewable energy technology capable of addressing the national need for liquid transportation fuels. Thus, there is an incentive to develop economic conversion processes for converting biomass, including wood, into liquid fuels. Through research sponsored by the US DOE's Biomass Thermochemical Conversion Program, the University of Arizona has developed a unique biomass direct liquefaction system. The system features a modified single-screw extruder capable of pumping solid slurries containing as high as 60 wt% wood flour in wood oil derived vacuum bottoms at pressures up to 3000 psi. The extruder-feeder has been integrated with a unique reactor by the University to form a system which offers potential for improving high pressure biomass direct liquefaction technology. The extruder-feeder acts simultaneously as both a feed preheater and a pumping device for injecting wood slurries into a high pressure reactor in the biomass liquefaction process. An experimental facility was constructed and following shakedown operations, wood crude oil was produced by mid-1985. By July 1988, a total of 57 experimental continuous biomass liquefaction runs were made using White Birch wood feedstock. Good operability was achieved at slurry feed rates up to 30 lb/hr, reactor pressures from 800 to 3000 psi and temperatures from 350{degree}C to 430{degree}C under conditions covering a range of carbon monoxide feed rates and sodium carbonate catalyst addition. Crude wood oils containing as little as 6--10 wt% residual oxygen were produced. 38 refs., 82 figs., 26 tabs.

  6. Interstate power plants 8-inch HDPE gas feeder line

    SciTech Connect

    Not Available

    1982-07-01

    Interstate Power Co.'s newly laid 8-in. high density polyethylene gas feeder line on the banks of the Mississippi River from Savanna to Thomson, IL., has an expected minimum 100-year lifetime. Serving a rapidly growing industrial and residential area, the 9.5-mile distribution line is initially operating as a 60-psi system, although it is ultimately designed for 82-psi service obtained by using Plexco PE 3406/3408 pipe with a 0.639-in.-thick wall and weighing 7 lb/ft. The Thomson line is the first time Interstate has planted 8-in. pipe using a Vermeer T600C ladder trencher. Lower material and labor costs make the plastic line only 65% of the installed cost of a comparable steel pipeline.

  7. “Turn It Off!”: Diabetes Device Alarm Fatigue Considerations for the Present and the Future

    PubMed Central

    Shivers, Joseph P.; Mackowiak, Linda; Anhalt, Henry; Zisser, Howard

    2013-01-01

    Abstract Safe and widespread use of diabetes technology is constrained by alarm fatigue: when someone receives so many alarms that he or she becomes less likely to respond appropriately. Alarm fatigue and related usability issues deserve consideration at every stage of alarm system design, especially as new technologies expand the potential number and complexity of alarms. The guiding principle should be patient wellbeing, while taking into consideration the regulatory and liability issues that sometimes contribute to building excessive alarms. With examples from diabetes devices, we illustrate two complementary frameworks for alarm design: a “patient safety first” perspective and a focus on human factors. We also describe opportunities and challenges that will come with new technologies such as remote monitoring, adaptive alarms, and ever-closer integration of glucose sensing with insulin delivery. PMID:23759412

  8. 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.

  9. 46 CFR 108.445 - Alarm and means of escape.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Alarm and means of escape. 108.445 Section 108.445 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems §...

  10. Feeders of Free-Roaming Cats: Personal Characteristics, Feeding Practices, and Data on Cat Health and Welfare in an Urban Setting of Israel.

    PubMed

    Gunther, Idit; Raz, Tal; Even Zor, Yehonatan; Bachowski, Yuval; Klement, Eyal

    2016-01-01

    Cat feeders serve as an important source of available food for free-roaming cats (FRCs) and can play a central role in providing data on FRC distribution, welfare, and health. Data on cat feeder personalities as well as a better understanding of their feeding practices offer relevance for decision making concerning FRC population control strategies. The current study surveyed 222 FRC feeders who responded to a municipal trap-neuter-return (TNR) campaign in an Israeli central urban setting. The aim of the study was to describe their personal characteristics, feeding practices, and the FRC populations they feed. Feeders were divided into four groups according to the number of cats they claimed to feed per day (group 1: fed up to 5 cats, group 2: fed 6-10 cats, group 3: fed 11-20 cats, and group 4: fed ≥21 cats). Most feeders were women (81%), with a median age of 58 years (range 18-81). The feeders reported an overall feeding of 3337 cats in 342 different feeding locations. Feeders of group 4 comprised 15.31% (n = 34) of all feeders but fed 56% (n = 1869) of the FRC in 37.42% (n = 128) of the feeding locations. "Heavy" feeders (groups 3 and 4) reported that they traveled significantly longer distances in order to feed the cats. Commercial dry food consisted of 90% of the food they provided, with 66% of them feeding once a day, with less food per cat per day than the other feeder groups. Interestingly, "heavy" feeders were usually singles, had on average fewer siblings, a clear preference for owning cats as pets, and lived in lower income neighborhoods. According to the feeders' reports on the FRC populations they fed, 69.7% (2325/3337) cats were neutered and 11.8% (395/3337) were kittens. In addition, they reported that 1.6% (54/3337) of the cats were limping, 2% (67/3337) suffered from a systemic disease, 4% (135/3337) had skin lesions, and 3.9% (130/3337) were suffering from a chronic disability. Abundance of kittens and morbidity rate were

  11. Microscopic suspension feeders near boundaries: Effects of external water flow

    NASA Astrophysics Data System (ADS)

    Pepper, Rachel; Koehl, M. A. R.

    2015-11-01

    Microscopic sessile suspension feeders are an important part of aquatic ecosystems and form a vital link in the transfer of carbon in aquatic food webs. These suspension feeders live attached to boundaries, consume bacteria and small detritus, and are in turn eaten by larger organisms. Many create a feeding current that draws fluid towards them, and from which they filter their food. In still water, the feeding current consists of recirculating eddies which form as a result of fluid forcing near a boundary. These recirculating eddies can be depleted of food and significantly decrease nutrient uptake; a variety of strategies have been proposed for how attached feeders increase their access to undepleted water. We investigate the interaction of the flow produced by a microscopic suspension feeder with external environmental flow, such as the current in a stream or ocean. We show through calculations that even very slow flow (on the order of microns per second) is sufficient to provide a constant supply of undepleted water to suspension feeders when the feeders are modeled with perfect nutrient capture efficiency and in the absence of diffusion. We also discuss which natural flow environments exceed the threshold to supply undepleted water and which do not, and we examine how characteristics of the suspension feeders themselves, such as stalk length and feeding disk size, influence feeding currents and their interactions with external flows.

  12. 33 CFR 127.1207 - Warning alarms.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) WATERFRONT FACILITIES WATERFRONT FACILITIES HANDLING LIQUEFIED NATURAL GAS AND LIQUEFIED HAZARDOUS GAS Waterfront Facilities Handling Liquefied Hazardous Gas Equipment § 127.1207 Warning alarms. (a) Each...

  13. Temperature monitor and alarm for cryogenic instruments

    NASA Astrophysics Data System (ADS)

    Thatcher, John B., Jr.; Keliher, Pat; Jeanpierre, Carlos

    1994-06-01

    Internal temperatures in filled cryostats must be continuously monitored to preserve the health and safety of hardware and personnel. The accidental response of cryogenic gases into the atmosphere pose a health threat and, if the gases are flammable, may lead to an explosion. One indication of an imminent cryogen release is the sudden increase in cryogen temperature. Although there are many data acquisition systems and temperature monitoring products commercially available, these systems lack the portability and safety features required during cryostat qualification tests and transport. This paper describes a temperature monitor and alarm circuit developed for the Spirit II solid hydrogen cryostat program. The instrument is battery-operated, accurate, portable, and intrinsically safe in an explosive atmosphere.

  14. Some comments on GMTI false alarm rate

    NASA Astrophysics Data System (ADS)

    Doerry, A. W.

    2011-06-01

    A typical Ground Moving Target Indicator (GMTI) radar specification includes the parameters Probability of Detection (PD) - typically on the order of 0.85, and False Alarm Rate (FAR) - typically on the order of 0.1 Hz. The PD is normally associated with a particular target 'size', such as Radar Cross Section (RCS) with perhaps some statistical description (e.g. Swerling number). However, the concept of FAR is embodied at a fundamental level in the detection process, which traditionally employs a Constant-FAR (CFAR) detector to set thresholds for initial decisions on whether a target is present or not. While useful, such a metric for radar specification and system comparison is not without some serious shortcomings. In particular, when comparing FAR across various radar systems, some degree of normalization needs to occur to account for perhaps swath width and scan rates. This in turn suggests some useful testing strategies.

  15. What can be done to reduce false alarms?

    PubMed

    Baillie, Jonathan

    2013-05-01

    Although (the Department for Communities and Local Government's 'Fire statistics' reveal) the number of such incidents has fallen every year since 2006/07, UK fire and rescue services still attended over 312,400 'false fire alarms,' i.e. instances where, on arriving at a site, they found no fire, in 2011/12. Such incidents have been a significant concern for healthcare facilities teams, and for the fire and rescue services serving them, for many years, and, although the past decade has seen determined efforts to substantially reduce the number bearing fruit, many believe far too many still occur. HEJ editor, Jonathan Baillie, reports on a recent London roundtable discussion staged by two leading fire detection and alarm equipment specialists, Apollo Fire Detectors, and Static Systems Group, with IHEEM, which brought together experts to discuss what more can be done to minimise false fire alarms. PMID:23763086

  16. Putative involvement of the nitrergic system on the consolidation, but not initiation, of behavioral sensitization after conspecific alarm substance in zebrafish.

    PubMed

    Lima, Monica Gomes; Silva, Suéllen de Nazaré Dos Santos; Silva, Rhayra Xavier do Carmo; Oliveira, Karen Renata Herculano Matos; Batista, Evander de Jesus Oliveira; Maximino, Caio; Herculano, Anderson Manoel

    2015-12-01

    Stressful manipulations can sensitize the behavior of an organism, increasing anxiety-like behavior after a delay; this long-term stress sensitization can represent the pathophysiological basis of trauma- and stress-related disorders (TRSDs), of which the most prevalent is post-traumatic stress disorder (PTSD). A role for the glutamate-nitric oxide pathway in this sensitization is implied by behavioral, neurophysiological and genomic data on different species. Here, we report on the long-term sensitization of anxiety-like behavior in zebrafish and the possible participation of nitric oxide in this process. Zebrafish exposed to a conspecific alarm substance (AS) show increased anxiety-like behavior at least 24h after stimulus delivery. Blocking nitric oxide synthesis with l-NAME (5mg/kg) 30min, but not 90min, after AS exposure blocks the sensitization of scototaxis and risk assessment, while treatment 90min after exposure blocks the sensitization of thigmotaxis and erratic swimming; l-NAME was not effective when administered 30min before AS exposure. These data suggest a participation of nitric oxide in the consolidation, but not in the initiation, of behavioral sensitization after predator threat. PMID:26257339

  17. False alarm reduction in critical care.

    PubMed

    Clifford, Gari D; Silva, Ikaro; Moody, Benjamin; Li, Qiao; Kella, Danesh; Chahin, Abdullah; Kooistra, Tristan; Perry, Diane; Mark, Roger G

    2016-08-01

    High false alarm rates in the ICU decrease quality of care by slowing staff response times while increasing patient delirium through noise pollution. The 2015 PhysioNet/Computing in Cardiology Challenge provides a set of 1250 multi-parameter ICU data segments associated with critical arrhythmia alarms, and challenges the general research community to address the issue of false alarm suppression using all available signals. Each data segment was 5 minutes long (for real time analysis), ending at the time of the alarm. For retrospective analysis, we provided a further 30 seconds of data after the alarm was triggered. A total of 750 data segments were made available for training and 500 were held back for testing. Each alarm was reviewed by expert annotators, at least two of whom agreed that the alarm was either true or false. Challenge participants were invited to submit a complete, working algorithm to distinguish true from false alarms, and received a score based on their program's performance on the hidden test set. This score was based on the percentage of alarms correct, but with a penalty that weights the suppression of true alarms five times more heavily than acceptance of false alarms. We provided three example entries based on well-known, open source signal processing algorithms, to serve as a basis for comparison and as a starting point for participants to develop their own code. A total of 38 teams submitted a total of 215 entries in this year's Challenge. This editorial reviews the background issues for this challenge, the design of the challenge itself, the key achievements, and the follow-up research generated as a result of the Challenge, published in the concurrent special issue of Physiological Measurement. Additionally we make some recommendations for future changes in the field of patient monitoring as a result of the Challenge. PMID:27454172

  18. 46 CFR 34.15-30 - Alarms-T/ALL.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS FIREFIGHTING EQUIPMENT Carbon Dioxide Extinguishing...) which are protected by a carbon dioxide extinguishing system and are normally accessible to persons on... the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally...

  19. 46 CFR 34.15-30 - Alarms-T/ALL.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS FIREFIGHTING EQUIPMENT Carbon Dioxide Extinguishing...) which are protected by a carbon dioxide extinguishing system and are normally accessible to persons on... the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally...

  20. 46 CFR 34.15-30 - Alarms-T/ALL.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS FIREFIGHTING EQUIPMENT Carbon Dioxide Extinguishing...) which are protected by a carbon dioxide extinguishing system and are normally accessible to persons on... the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally...

  1. 46 CFR 34.15-30 - Alarms-T/ALL.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS FIREFIGHTING EQUIPMENT Carbon Dioxide Extinguishing...) which are protected by a carbon dioxide extinguishing system and are normally accessible to persons on... the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally...

  2. 46 CFR 34.15-30 - Alarms-T/ALL.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS FIREFIGHTING EQUIPMENT Carbon Dioxide Extinguishing...) which are protected by a carbon dioxide extinguishing system and are normally accessible to persons on... the carbon dioxide is admitted to the space. The alarm shall be conspicuously and centrally...

  3. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Placement of machinery alarms. 130.460 Section 130.460 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460...

  4. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Placement of machinery alarms. 130.460 Section 130.460 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460...

  5. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Placement of machinery alarms. 130.460 Section 130.460 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460...

  6. 46 CFR 130.460 - Placement of machinery alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Placement of machinery alarms. 130.460 Section 130.460 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS Automation of Unattended Machinery Spaces § 130.460...

  7. 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.

  8. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Enuresis alarm. 876.2040 Section 876.2040 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES... alarm is a device intended for use in treatment of bedwetting. Through an electrical trigger...

  9. Display-And-Alarm Circuit For Accelerometer

    NASA Technical Reports Server (NTRS)

    Bozeman, Richard J., Jr.

    1995-01-01

    Compact accelerometer assembly consists of commercial accelerometer retrofit with display-and-alarm circuit. Provides simple means for technician attending machine to monitor vibrations. Also simpifies automatic safety shutdown by providing local alarm or shutdown signal when vibration exceeds preset level.

  10. 21 CFR 876.2040 - Enuresis alarm.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Enuresis alarm. 876.2040 Section 876.2040 Food and Drugs 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...

  11. Evaluation of ERDA-sponsored coal feed system development

    NASA Technical Reports Server (NTRS)

    Phen, R. L.; Luckow, W. K.; Mattson, L.; Otth, D.; Tsou, P.

    1977-01-01

    Coal feeders were evaluated based upon criteria such as technical feasibility, performance (i.e. ability to meet process requirements), projected life cycle costs, and projected development cost. An initial set of feeders was selected based on the feeders' cost savings potential compared with baseline lockhopper systems. Additional feeders were considered for selection based on: (1) increasing the probability of successful feeder development; (2) application to specific processes; and (3) technical merit. A coal feeder development program is outlined.

  12. One of two rotodip feeders used to control addition of ...

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

    One of two rotodip feeders used to control addition of alum solution into the water - Division Avenue Pumping Station & Filtration Plant, West 45th Street and Division Avenue, Cleveland, Cuyahoga County, OH

  13. Analysis of Feeder Bus Network Design and Scheduling Problems

    PubMed Central

    Almasi, Mohammad Hadi; Karim, Mohamed Rehan

    2014-01-01

    A growing concern for public transit is its inability to shift passenger's mode from private to public transport. In order to overcome this problem, a more developed feeder bus network and matched schedules will play important roles. The present paper aims to review some of the studies performed on Feeder Bus Network Design and Scheduling Problem (FNDSP) based on three distinctive parts of the FNDSP setup, namely, problem description, problem characteristics, and solution approaches. The problems consist of different subproblems including data preparation, feeder bus network design, route generation, and feeder bus scheduling. Subsequently, descriptive analysis and classification of previous works are presented to highlight the main characteristics and solution methods. Finally, some of the issues and trends for future research are identified. This paper is targeted at dealing with the FNDSP to exhibit strategic and tactical goals and also contributes to the unification of the field which might be a useful complement to the few existing reviews. PMID:24526890

  14. 39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. ...

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

    39. CLOSE UP DETAIL OF THE FEEDER AND STAMP CONNECTION. THE STAMP AN MORTAR BOX ARE ON THE LEFT AND THE FEEDER WITH ITS FEEDER DISK IS ON THE RIGHT. NOTE THE COLLAR ON THE CENTER STAMP STEM (UPPER LEFT CORNER OF THE IMAGE) THAT ACTIVATES THE LEVER IN THE CENTER OF THE PHOTO. THE COLLAR IS POSITIONED SUCH THAT WHEN THE LEVEL OF THE MATERIAL REACHES A LOW POINT IN THE MORTAR BOX IT PUSHES DOWN ON THE LEVER WHICH IN TURN ACTIVATES THE AUTOMATIC FEEDER DRIVE MECHANISM WHICH THEM DELIVERS ORE INTO THE BACKSIDE OF THE MORTAR BOX. - Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mono County, CA

  15. 11. MOVABLE BED SEDIMENTATION MODELS. AUTOMATIC SEDIMENT FEEDER DESIGNED AND ...

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

    11. MOVABLE BED SEDIMENTATION MODELS. AUTOMATIC SEDIMENT FEEDER DESIGNED AND BUILT BY WES. - Waterways Experiment Station, Hydraulics Laboratory, Halls Ferry Road, 2 miles south of I-20, Vicksburg, Warren County, MS

  16. A New Angle on Microscopic Suspension Feeders near Boundaries

    PubMed Central

    Pepper, Rachel E.; Roper, Marcus; Ryu, Sangjin; Matsumoto, Nobuyoshi; Nagai, Moeto; Stone, Howard A.

    2013-01-01

    Microscopic sessile suspension feeders are a critical component in aquatic ecosystems, acting as an intermediate trophic stage between bacteria and higher eukaryotic taxa. Because they live attached to boundaries, it has long been thought that recirculation of the feeding currents produced by sessile suspension feeders inhibits their ability to access fresh fluid. However, previous models for the feeding flows of these organisms assume that they feed by pushing fluid perpendicular to surfaces they live upon, whereas we observe that sessile suspension feeders often feed at an angle to these boundaries. Using experiments and calculations, we show that living suspension feeders (Vorticella) likely actively regulate the angle that they feed relative to a substratum. We then use theory and simulations to show that angled feeding increases nutrient and particle uptake by reducing the reprocessing of depleted water. This work resolves an open question of how a key class of suspension-feeding organisms escapes physical limitations associated with their sessile lifestyle. PMID:24138855

  17. Feeders of Free-Roaming Cats: Personal Characteristics, Feeding Practices, and Data on Cat Health and Welfare in an Urban Setting of Israel

    PubMed Central

    Gunther, Idit; Raz, Tal; Even Zor, Yehonatan; Bachowski, Yuval; Klement, Eyal

    2016-01-01

    Cat feeders serve as an important source of available food for free-roaming cats (FRCs) and can play a central role in providing data on FRC distribution, welfare, and health. Data on cat feeder personalities as well as a better understanding of their feeding practices offer relevance for decision making concerning FRC population control strategies. The current study surveyed 222 FRC feeders who responded to a municipal trap-neuter-return (TNR) campaign in an Israeli central urban setting. The aim of the study was to describe their personal characteristics, feeding practices, and the FRC populations they feed. Feeders were divided into four groups according to the number of cats they claimed to feed per day (group 1: fed up to 5 cats, group 2: fed 6–10 cats, group 3: fed 11–20 cats, and group 4: fed ≥21 cats). Most feeders were women (81%), with a median age of 58 years (range 18–81). The feeders reported an overall feeding of 3337 cats in 342 different feeding locations. Feeders of group 4 comprised 15.31% (n = 34) of all feeders but fed 56% (n = 1869) of the FRC in 37.42% (n = 128) of the feeding locations. “Heavy” feeders (groups 3 and 4) reported that they traveled significantly longer distances in order to feed the cats. Commercial dry food consisted of 90% of the food they provided, with 66% of them feeding once a day, with less food per cat per day than the other feeder groups. Interestingly, “heavy” feeders were usually singles, had on average fewer siblings, a clear preference for owning cats as pets, and lived in lower income neighborhoods. According to the feeders’ reports on the FRC populations they fed, 69.7% (2325/3337) cats were neutered and 11.8% (395/3337) were kittens. In addition, they reported that 1.6% (54/3337) of the cats were limping, 2% (67/3337) suffered from a systemic disease, 4% (135/3337) had skin lesions, and 3.9% (130/3337) were suffering from a chronic disability. Abundance of kittens and morbidity

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

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... VESSELS OPERATIONS Markings for Fire and Emergency Equipment, etc. § 196.37-9 Carbon dioxide and clean agent alarms. Each extinguishing system using carbon dioxide or clean agent complying with 46 CFR... 46 Shipping 7 2012-10-01 2012-10-01 false Carbon dioxide and clean agent alarms. 196.37-9...

  19. 46 CFR 196.37-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... VESSELS OPERATIONS Markings for Fire and Emergency Equipment, etc. § 196.37-9 Carbon dioxide and clean agent alarms. Each extinguishing system using carbon dioxide or clean agent complying with 46 CFR... 46 Shipping 7 2014-10-01 2014-10-01 false Carbon dioxide and clean agent alarms. 196.37-9...

  20. 46 CFR 196.37-9 - Carbon dioxide and clean agent alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... VESSELS OPERATIONS Markings for Fire and Emergency Equipment, etc. § 196.37-9 Carbon dioxide and clean agent alarms. Each extinguishing system using carbon dioxide or clean agent complying with 46 CFR... 46 Shipping 7 2013-10-01 2013-10-01 false Carbon dioxide and clean agent alarms. 196.37-9...

  1. Human Umbilical Cord Blood-Derived Serum for Culturing the Supportive Feeder Cells of Human Pluripotent Stem Cell Lines

    PubMed Central

    Rungsiwiwut, Ruttachuk; Ingrungruanglert, Praewphan; Numchaisrika, Pranee; Virutamasen, Pramuan; Phermthai, Tatsanee; Pruksananonda, Kamthorn

    2016-01-01

    Although human pluripotent stem cells (hPSCs) can proliferate robustly on the feeder-free culture system, genetic instability of hPSCs has been reported in such environment. Alternatively, feeder cells enable hPSCs to maintain their pluripotency. The feeder cells are usually grown in a culture medium containing fetal bovine serum (FBS) prior to coculture with hPSCs. The use of FBS might limit the clinical application of hPSCs. Recently, human cord blood-derived serum (hUCS) showed a positive effect on culture of mesenchymal stem cells. It is interesting to test whether hUCS can be used for culture of feeder cells of hPSCs. This study was aimed to replace FBS with hUCS for culturing the human foreskin fibroblasts (HFFs) prior to feeder cell preparation. The results showed that HFFs cultured in hUCS-containing medium (HFF-hUCS) displayed fibroblastic features, high proliferation rates, short population doubling times, and normal karyotypes after prolonged culture. Inactivated HFF-hUCS expressed important genes, including Activin A, FGF2, and TGFβ1, which have been implicated in the maintenance of hPSC pluripotency. Moreover, hPSC lines maintained pluripotency, differentiation capacities, and karyotypic stability after being cocultured for extended period with inactivated HFF-hUCS. Therefore, the results demonstrated the benefit of hUCS for hPSCs culture system. PMID:26839561

  2. The provision of spectrum for feeder links of non-geostationary mobile satellites

    NASA Astrophysics Data System (ADS)

    Bowen, Robert R.

    The possibility of sharing spectrum in the 30/20 GHz band between geostationary fixed-satellite systems and feeder-links of low-earth orbit (LEO) mobile-satellite systems is addressed, taking into account that International Telecommunications Union (ITU) Radio Regulation 2613 would be a factor in such sharing. Interference into each network in both the uplink at 30 GHz and the downlink at 20 GHz is considered. It is determined that if sharing were to take place the mobile-satellite may have to cease transmission often for intervals up to 10 seconds, may have to use high-gain tracking antennas on its spacecraft, and may find it an advantage to use code-division multiple access. An alternate solution suggested is to designate a band 50 to 100 MHz wide at 28 and 18 GHz to be used primarily for feeder links to LEO systems.

  3. The provision of spectrum for feeder links of non-geostationary mobile satellites

    NASA Technical Reports Server (NTRS)

    Bowen, Robert R.

    1993-01-01

    The possibility of sharing spectrum in the 30/20 GHz band between geostationary fixed-satellite systems and feeder-links of low-earth orbit (LEO) mobile-satellite systems is addressed, taking into account that International Telecommunications Union (ITU) Radio Regulation 2613 would be a factor in such sharing. Interference into each network in both the uplink at 30 GHz and the downlink at 20 GHz is considered. It is determined that if sharing were to take place the mobile-satellite may have to cease transmission often for intervals up to 10 seconds, may have to use high-gain tracking antennas on its spacecraft, and may find it an advantage to use code-division multiple access. An alternate solution suggested is to designate a band 50 to 100 MHz wide at 28 and 18 GHz to be used primarily for feeder links to LEO systems.

  4. 46 CFR 154.1365 - Audible and visual alarms.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Audible and visual alarms. 154.1365 Section 154.1365... Instrumentation § 154.1365 Audible and visual alarms. (a) Each audible alarm must have an arrangement that allows... alarm's actuation by other faults. (b) Each visual alarm must be one that can be turned off only...

  5. Functional and aesthetic approach to design of bird feeders

    NASA Astrophysics Data System (ADS)

    Kukhta, A.; Kukhta, M.

    2015-10-01

    Anthropogenic objects which load the urban environment negatively affects the human psyche. The alternative is attracting elements of the natural environment into urban environment, of which some of the most frequently identified are birds. Attracting birds in the city is possible by means of feeders and artificial nests, however, both must be harmonious. The aim of this study is to analyze the essential functions of the feeders, and their integration into the environmental design and development of the city. On this basis an original feeder which is convenient for use by birds and attracts people's attention is developed. In this paper we apply comparative analysis of different types of feeders encountered in Tomsk, bird watching, and evaluate usability of different types of feeders from the position of their convenience both for birds and human beings. Historical-cultural analysis for determining features of the architectural and environmental design of Tomsk is carried out, the method allows us to solve engineering problems. In this study the feeder convenient for bird use is designed which blends harmoniously with the architectural design of Tomsk.

  6. A versatile technique to minimize electrical losses in distribution feeders

    SciTech Connect

    Kyaruzi, A.L.

    1994-12-31

    This dissertation presents a method of minimizing electrical losses in radial distribution feeders by the use of shunt capacitors. The engineering benefits of reducing peak electrical power and energy losses are compared to the costs associated with the current engineering practice of buying, installing and servicing capacitor banks in the distribution feeders. The present analysis defines this cost-benefit problem and the formulation of the problem of nonuniform feeders with different wire gauges at various feeder sections. Standard utility capacitor bank sizes are used to give a more realistic model. An original computer solution methodology based on techniques developed for this study determines: (i) Whether it is economical to install compensating capacitor banks on a particular radial distribution feeder or not. (ii) The locations at which capacitor banks should be installed. (iii) The types and sizes of capacitor banks to be installed. (iv) The time setting of switched capacitor banks. The techniques have been applied to a typical radial distribution feeder in Dar-es-Salaam, Tanzania. The results and the engineering implications of this work are discussed and recommendations for the engineering community made.

  7. Estimation of the patient monitor alarm rate for a quantitative analysis of new alarm settings.

    PubMed

    de Waele, Stijn; Nielsen, Larry; Frassica, Joseph

    2014-01-01

    In many critical care units, default patient monitor alarm settings are not fine-tuned to the vital signs of the patient population. As a consequence there are many alarms. A large fraction of the alarms are not clinically actionable, thus contributing to alarm fatigue. Recent attention to this phenomenon has resulted in attempts in many institutions to decrease the overall alarm load of clinicians by altering the trigger thresholds for monitored parameters. Typically, new alarm settings are defined based on clinical knowledge and patient population norms and tried empirically on new patients without quantitative knowledge about the potential impact of these new settings. We introduce alarm regeneration as a method to estimate the alarm rate of new alarm settings using recorded patient monitor data. This method enables evaluation of several alarm setting scenarios prior to using these settings in the clinical setting. An expression for the alarm rate variance is derived for the calculation of statistical confidence intervals on the results. PMID:25571296

  8. Alarming features: birds use specific acoustic properties to identify heterospecific alarm calls

    PubMed Central

    Fallow, Pamela M.; Pitcher, Benjamin J.; Magrath, Robert D.

    2013-01-01

    Vertebrates that eavesdrop on heterospecific alarm calls must distinguish alarms from sounds that can safely be ignored, but the mechanisms for identifying heterospecific alarm calls are poorly understood. While vertebrates learn to identify heterospecific alarms through experience, some can also respond to unfamiliar alarm calls that are acoustically similar to conspecific alarm calls. We used synthetic calls to test the role of specific acoustic properties in alarm call identification by superb fairy-wrens, Malurus cyaneus. Individuals fled more often in response to synthetic calls with peak frequencies closer to those of conspecific calls, even if other acoustic features were dissimilar to that of fairy-wren calls. Further, they then spent more time in cover following calls that had both peak frequencies and frequency modulation rates closer to natural fairy-wren means. Thus, fairy-wrens use similarity in specific acoustic properties to identify alarms and adjust a two-stage antipredator response. Our study reveals how birds respond to heterospecific alarm calls without experience, and, together with previous work using playback of natural calls, shows that both acoustic similarity and learning are important for interspecific eavesdropping. More generally, this study reconciles contrasting views on the importance of alarm signal structure and learning in recognition of heterospecific alarms. PMID:23303539

  9. The chemistry of eavesdropping, alarm, and deceit.

    PubMed Central

    Stowe, M K; Turlings, T C; Loughrin, J H; Lewis, W J; Tumlinson, J H

    1995-01-01

    Arthropods that prey on or parasitize other arthropods frequently employ those chemical cues that reliably indicate the presence of their prey or hosts. Eavesdropping on the sex pheromone signals emitted to attract mates allows many predators and parasitoids to find and attack adult insects. The sex pheromones are also useful signals for egg parasitoids since eggs are frequently deposited on nearby plants soon after mating. When the larval stages of insects or other arthropods are the targets, a different foraging strategy is employed. The larvae are often chemically inconspicuous, but when they feed on plants the injured plants respond by producing and releasing defensive chemicals. These plant chemicals may also serve as "alarm signals" that are exploited by predators and parasitoids to locate their victims. There is considerable evidence that the volatile "alarm signals" are induced by interactions of substances from the herbivore with the damaged plant tissue. A very different strategy is employed by several groups of spiders that remain stationary and send out chemical signals that attract prey. Some of these spiders prey exclusively on male moths. They attract the males by emitting chemicals identical to the sex pheromones emitted by female moths. These few examples indicate the diversity of foraging strategies of arthropod predators and parasitoids. It is likely that many other interesting chemically mediated interactions between arthropod hunters and their victims remain to be discovered. Increased understanding of these systems will enable us to capitalize on natural interactions to develop more ecologically sound, environmentally safe methods for biological control of insect pests of agriculture. PMID:7816823

  10. Comprehensive smoke alarm coverage in lower economic status homes: alarm presence, functionality, and placement.

    PubMed

    Sidman, Elanor A; Grossman, David C; Mueller, Beth A

    2011-08-01

    The objectives of this study are to estimate smoke alarm coverage and adherence with national guidelines in low- to mid-value owner-occupied residences, and to identify resident demographic, behavioral, and building characteristics and other fire and burn safety practices associated with smoke alarm utilization. Baseline visits were conducted with 779 households in King County, Washington, for a randomized trial of smoke alarm functionality. Presence, functionality, features, and location of pre-existing smoke alarms were ascertained by staff observation and testing. Household and building descriptors were collected using questionnaires. Households were classified by presence of smoke alarms, functional alarms, and functional and properly mounted alarms placed in hallways and on each floor but not in recommended avoidance locations. Smoke alarms were present in 89%, and functional units in 78%, of households. Only 6-38% met all assessed functionality and placement recommendations. Homes frequently lacked alarms in any bedrooms or on each floor. Building age, but not renovation status, was associated with all dimensions of smoke alarm coverage; post-1980 constructions were 1.7 times more likely to comply with placement recommendations than were pre-1941 homes (95% CI: 1.1-2.6). Respondent education and race/ethnicity, children <5 years, residency duration, number of floors, wood stoves and fireplaces, number of smoke alarms, recency of smoke alarm testing, carbon monoxide monitors, and fire ladders displayed varying relationships with alarm presence, functionality, and placement. Strategies for maintaining smoke alarms in functional condition and improving compliance with placement recommendations are necessary to achieve universal coverage, and will benefit the majority of households. PMID:21107891

  11. 46 CFR 78.47-13 - Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    .... § 78.47-13 Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells. (a) The fire detecting and manual alarm automatic sprinklers, and smoke detecting alarm bells in the... “SMOKE DETECTING ALARM” as appropriate. Where such alarms on the bridge or in the fire control station...

  12. 46 CFR 78.47-13 - Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    .... § 78.47-13 Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells. (a) The fire detecting and manual alarm automatic sprinklers, and smoke detecting alarm bells in the... “SMOKE DETECTING ALARM” as appropriate. Where such alarms on the bridge or in the fire control station...

  13. 46 CFR 78.47-13 - Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    .... § 78.47-13 Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells. (a) The fire detecting and manual alarm automatic sprinklers, and smoke detecting alarm bells in the... “SMOKE DETECTING ALARM” as appropriate. Where such alarms on the bridge or in the fire control station...

  14. 46 CFR 78.47-13 - Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    .... § 78.47-13 Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells. (a) The fire detecting and manual alarm automatic sprinklers, and smoke detecting alarm bells in the... “SMOKE DETECTING ALARM” as appropriate. Where such alarms on the bridge or in the fire control station...

  15. 46 CFR 78.47-13 - Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    .... § 78.47-13 Fire detecting and manual alarm, automatic sprinkler, and smoke detecting alarm bells. (a) The fire detecting and manual alarm automatic sprinklers, and smoke detecting alarm bells in the... “SMOKE DETECTING ALARM” as appropriate. Where such alarms on the bridge or in the fire control station...

  16. Feeder-free and xeno-free culture of human pluripotent stem cells using UCBS matrix.

    PubMed

    Ding, Yan; Yang, Hua; Yu, Li; Xu, Chang Long; Zeng, Yi; Qiu, Ying; Li, Dong Sheng

    2015-10-01

    The ideal medium for human pluripotent stem cells (hPSCs) culture should be feeder-free, xeno-free, and completely defined. The present study aims to establish a new feeder-free and xeno-free system for culturing hPSCs. The system consists of the matrix, which was prepared from human umbilical cord blood serum (UCBS) and used to coat the culture plates, and the xeno-free medium, which was conventional serum-free hES medium supplemented with high concentrations of bFGF and Fibronectin. Compared with matrigel and mouse embryonic fibroblasts (MEFs), the UCBS matrix was proved to be equally suitable for the growth of hPSCs. After a series of experiments with different media and cytokins, the UCBS matrix was found worked the best with the basic medium (BM) supplemented with 20 ng/mL bFGF, 10 ug/mL fibronectin and Y-27632 for culture of hES cells. The hPSCs maintained normal karyotype, high proliferation rate and self-renewal ability after continuous culture more than 10 passages in this feeder-free and xeno-free system. Furthermore, a new human embryonic stem (hES) cell line was derived from discarded day 3 embryos in this newly developed culture system. In conclusion, this feeder-free and xeno-free system could not only be used to the culture hPSCs, but could also be used to derive new hES cell lines. PMID:25939663

  17. Conceptual Design and Analysis of Cold Mass Support of the CS3U Feeder for the ITER

    NASA Astrophysics Data System (ADS)

    Zhu, Yinfeng; Song, Yuntao; Zhang, Yuanbin; Wang, Zhongwei

    2013-06-01

    In the International Thermonuclear Experimental Reactor (ITER) project, the feeders are one of the most important and critical systems. To convey the power supply and the coolant for the central solenoid (CS) magnet, 6 sets of CS feeders are employed, which consist mainly of an in-cryostat feeder (ICF), a cryostat feed-through (CFT), an S-bend box (SBB), and a coil terminal box (CTB). To compensate the displacements of the internal components of the CS feeders during operation, sliding cold mass supports consisting of a sled plate, a cylindrical support, a thermal shield, and an external ring are developed. To check the strength of the developed cold mass supports of the CS3U feeder, electromagnetic analysis of the two superconducting busbars is performed by using the CATIA V5 and ANSYS codes based on parametric technology. Furthermore, the thermal-structural coupling analysis is performed based on the obtained results, except for the stress concentration, and the max. stress intensity is lower than the allowable stress of the selected material. It is found that the conceptual design of the cold mass support can satisfy the required functions under the worst case of normal working conditions. All these performed activities will provide a firm technical basis for the engineering design and development of cold mass supports.

  18. Fire detection and alarm subsystem design description: 4 x 350 MW(t) Modular HTGR [High-Temperature Gas-Cooled Reactor] Plant

    SciTech Connect

    1986-06-01

    Fire Detection and Alarm is an early warning system used to detect and report the presence of a fire within the plant. It detects, annunciates, and records plant-wide fire alarms, subsystem trouble, and fire console operator actions.

  19. 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

  20. 46 CFR 62.25-20 - Instrumentation, alarms, and centralized stations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... ENGINEERING VITAL SYSTEM AUTOMATION General Requirements for All Automated Vital Systems § 62.25-20... there is no off position. (5) Automation alarms must be separate and independent of the following:...

  1. 46 CFR 62.25-20 - Instrumentation, alarms, and centralized stations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... ENGINEERING VITAL SYSTEM AUTOMATION General Requirements for All Automated Vital Systems § 62.25-20... there is no off position. (5) Automation alarms must be separate and independent of the following:...

  2. ED accreditation update. Hospitals put on notice: alarm management is a top priority for 2014.

    PubMed

    2013-09-01

    Establishing alarm management as a new National Patient Safety Goal (NPSG), The Joint Commission (TJC) is calling on hospitals to make the issue a safety priority, and to begin establishing policies and procedures designed to minimize alarm fatigue among clinical staff. Beginning on January 1,2014, hospitals need to begin identifying the most important alarm signals to manage based on input from staff as well as factors such as patient risk, and the potential for harm as demonstrated by the device's history. By January 1,2016, hospitals need to have policies and procedures in place for managing alarms identified in the first phase of the NPSG's requirements. Also, staff and independent licensed practitioners need to be educated about the purpose and proper operation of alarm systems that they are responsible for. PMID:24058949

  3. Optimal Capacitor Placement in Radial Distribution Feeders Using Fuzzy-Differential Evolution for Dynamic Load Condition

    NASA Astrophysics Data System (ADS)

    Kannan, S. M.; Renuga, P.; Kalyani, S.; Muthukumaran, E.

    2015-12-01

    This paper proposes new methods to select the optimal values of fixed and switched shunt capacitors in Radial distribution feeders for varying load conditions so as to maximize the annual savings and minimizes the energy loss by taking the capacitor cost into account. The identification of the weak buses, where the capacitors should be placed is decided by a set of rules given by the fuzzy expert system. Then the sizing of the fixed and switched capacitors is modeled using differential evolution (DE) and particle swarm optimization (PSO). A case study with an existing 15 bus rural distribution feeder is presented to illustrate the applicability of the algorithm. Simulation results show the better saving in cost over previous capacitor placement algorithm.

  4. 46 CFR 95.15-30 - Alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... conspicuously and centrally located and be marked as required by 46 CFR 97.37-9; and (3) Use stored gas power... approved audible alarm if: (1) The space is normally accessible to persons onboard while the vessel...

  5. Feeder use predicts both acquisition and transmission of a contagious pathogen in a North American songbird.

    PubMed

    Adelman, James S; Moyers, Sahnzi C; Farine, Damien R; Hawley, Dana M

    2015-09-22

    Individual heterogeneity can influence the dynamics of infectious diseases in wildlife and humans alike. Thus, recent work has sought to identify behavioural characteristics that contribute disproportionately to individual variation in pathogen acquisition (super-receiving) or transmission (super-spreading). However, it remains unknown whether the same behaviours enhance both acquisition and transmission, a scenario likely to result in explosive epidemics. Here, we examined this possibility in an ecologically relevant host-pathogen system: house finches and their bacterial pathogen, Mycoplasma gallisepticum, which causes severe conjunctivitis. We examined behaviours likely to influence disease acquisition (feeder use, aggression, social network affiliations) in an observational field study, finding that the time an individual spends on bird feeders best predicted the risk of conjunctivitis. To test whether this behaviour also influences the likelihood of transmitting M. gallisepticum, we experimentally inoculated individuals based on feeding behaviour and tracked epidemics within captive flocks. As predicted, transmission was fastest when birds that spent the most time on feeders initiated the epidemic. Our results suggest that the same behaviour underlies both pathogen acquisition and transmission in this system and potentially others. Identifying individuals that exhibit such behaviours is critical for disease management. PMID:26378215

  6. Primary Design and Analysis of Feeder for ITER Poloidal Field

    NASA Astrophysics Data System (ADS)

    Lei, Mingzhun; Song, Yuntao; Liu, Sumei; Lu, Kun; Wang, Zhongwei

    2011-10-01

    An electromagnetic (EM) analytic model for the PF feeder, applied to ITER and needed to convey the cryogenic supply and electrical power to the PF magnets, was built up. The magnetic flux density and the EM force under the worst conditions with the maximum working current in each coil were then calculated. Based on the EM analysis and theoretical calculation, the relationship between the busbar stress and the distance of neighbouring busbar supports was obtained, which provides an approach to optimize the design of the busbar supports. In order to check the feasibility of the PF feeder structure, a finite element model was built up and the ANSYS code was applied to analyze the stress and displacement. The numerical results show that the stress of the PF feeder is within the allowable limits and the structure is feasible.

  7. 20. VIEW OF CATENARY, FEEDER TOWERS AND COS COB POWER ...

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

    20. VIEW OF CATENARY, FEEDER TOWERS AND COS COB POWER PLANT (CENTER BACKGROUND) LOOKING WEST FROM THE NORTH SIDE OF THE MIANUS RIVER BASCULE BRIDGE. NOTE THAT THE CATENARY ENDS AT BRIDGE 313. TRAINS ARE CARRIED ACROSS THE BASCULE BRIDGE BY THEIR OWN MOMENTUM AND PICK UP THE CATENARY ON THE EAST SIDE OF THE RIVER. THE FEEDER LINES CARRY POWER ACROSS THE RIVER ABOVE THE LEVEL OF THE OPENED BASCULE ON THE TOWERS TO THE LEFT AND RIGHT. - New York, New Haven & Hartford Railroad, Cos Cob Power Plant, Sound Shore Drive, Greenwich, Fairfield County, CT

  8. National Fire Codes. A Compilation of NFPA Codes, Standards, Recommended Practices, and Manuals. Volume 7: Alarm and Special Extinguishing Systems. 1969-70.

    ERIC Educational Resources Information Center

    National Fire Protection Association, Boston, MA.

    These NFPA recommendations are phrased in terms of performance or objectives, the intent being to permit the utilization of any methods, devices, or materials which will produce the desired results. The major topics included are--(1) extinguishing systems, (2) standpipe and hose systems, (3) wetting agents, (4) fire hydrants, (5) water charges for…

  9. EFFECT OF ENVIRONMENTAL STRESSORS AND PROPHYLACTIC ANTIBIOTIC ON SERUM ANTIOXIDANT CONCENTRATIONS AND INCIDENCE OF BOVINE RESPIRATORY DISEASE OF FEEDER STEERS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Feeder cattle often encounter many environmental stressors and pathogens associated with the marketing process and translocation to the feedyard. Exposure to stressors could compromise the antioxidant and immune defense systems, resulting in morbidity and mortality of these calves. An experiment was...

  10. EFFECT OF ENVIRONMENTAL STRESSORS AND PROPHYLACTIC ANTIBIOTIC ON PERFORMANCE, FEVER STATUS AND INCIDENCE OF BOVINE RESPIRATORY DISEASE OF FEEDER STEERS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Feeder cattle often encounter many environmental stressors and pathogens associated with the marketing process and translocation to the feedyard. Exposure to stressors could compromise the antioxidant and immune defense systems, resulting in morbidity and mortality in these calves. An experiment was...

  11. High pressure feeder and method of operating to feed granular or fine materials

    SciTech Connect

    Vimalchand, Pannalal; Liu, Guohai; Peng, Wan Wang

    2014-10-07

    A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.

  12. 46 CFR 162.050-33 - Bilge alarm: Design specification.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 6 2014-10-01 2014-10-01 false Bilge alarm: Design specification. 162.050-33 Section....050-33 Bilge alarm: Design specification. (a) This section contains requirements that apply to bilge alarms. (b) Each bilge alarm must be designed to meet the requirements for an oil content meter in §...

  13. 46 CFR 154.1365 - Audible and visual alarms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... alarm's actuation by other faults. (b) Each visual alarm must be one that can be turned off only after the fault that actuated it is corrected. (c) Each visual alarm must be marked to show the type and, except for remote group alarms, the location of each fault that actuates it. (d) Each vessel must...

  14. 46 CFR 154.1365 - Audible and visual alarms.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... alarm's actuation by other faults. (b) Each visual alarm must be one that can be turned off only after the fault that actuated it is corrected. (c) Each visual alarm must be marked to show the type and, except for remote group alarms, the location of each fault that actuates it. (d) Each vessel must...

  15. 46 CFR 154.1365 - Audible and visual alarms.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... alarm's actuation by other faults. (b) Each visual alarm must be one that can be turned off only after the fault that actuated it is corrected. (c) Each visual alarm must be marked to show the type and, except for remote group alarms, the location of each fault that actuates it. (d) Each vessel must...

  16. 46 CFR 154.1365 - Audible and visual alarms.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... alarm's actuation by other faults. (b) Each visual alarm must be one that can be turned off only after the fault that actuated it is corrected. (c) Each visual alarm must be marked to show the type and, except for remote group alarms, the location of each fault that actuates it. (d) Each vessel must...

  17. 46 CFR 97.37-9 - Carbon dioxide alarm.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Carbon dioxide alarm. 97.37-9 Section 97.37-9 Shipping... Markings for Fire and Emergency Equipment, Etc. § 97.37-9 Carbon dioxide alarm. (a) All carbon dioxide alarms shall be conspicuously identified: “WHEN ALARM SOUNDS—VACATE AT ONCE. CARBON DIOXIDE...

  18. 46 CFR 97.37-9 - Carbon dioxide alarm.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Carbon dioxide alarm. 97.37-9 Section 97.37-9 Shipping... Markings for Fire and Emergency Equipment, Etc. § 97.37-9 Carbon dioxide alarm. (a) All carbon dioxide alarms shall be conspicuously identified: “WHEN ALARM SOUNDS—VACATE AT ONCE. CARBON DIOXIDE...

  19. 46 CFR 108.627 - Carbon dioxide alarm.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Carbon dioxide alarm. 108.627 Section 108.627 Shipping... EQUIPMENT Equipment Markings and Instructions § 108.627 Carbon dioxide alarm. Each carbon dioxide alarm must be identified by marking: “WHEN ALARM SOUNDS VACATE AT ONCE. CARBON DIOXIDE BEING RELEASED” next...

  20. 46 CFR 108.627 - Carbon dioxide alarm.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Carbon dioxide alarm. 108.627 Section 108.627 Shipping... EQUIPMENT Equipment Markings and Instructions § 108.627 Carbon dioxide alarm. Each carbon dioxide alarm must be identified by marking: “WHEN ALARM SOUNDS VACATE AT ONCE. CARBON DIOXIDE BEING RELEASED” next...