WorldWideScience

Sample records for automatic recording device

  1. 49 CFR 395.15 - Automatic on-board recording devices.

    Science.gov (United States)

    2010-10-01

    ... certifying that the design of the automatic on-board recorder has been sufficiently tested to meet the... 49 Transportation 5 2010-10-01 2010-10-01 false Automatic on-board recording devices. 395.15... OF SERVICE OF DRIVERS § 395.15 Automatic on-board recording devices. (a) Applicability and...

  2. Automatic QRS complex detection algorithm designed for a novel wearable, wireless electrocardiogram recording device

    DEFF Research Database (Denmark)

    Saadi, Dorthe Bodholt; Egstrup, Kenneth; Branebjerg, Jens;

    2012-01-01

    We have designed and optimized an automatic QRS complex detection algorithm for electrocardiogram (ECG) signals recorded with the DELTA ePatch platform. The algorithm is able to automatically switch between single-channel and multi-channel analysis mode. This preliminary study includes data from ...

  3. Technical note: Quantifying and characterizing behavior in dairy calves using the IceTag automatic recording device

    DEFF Research Database (Denmark)

    Trénel, P.; Jensen, Margit Bak; Decker, Erik Luc

    2009-01-01

    The objectives of the current study were 1) to validate the IceTag ( http://www.icerobotics.com/ ) automatic recording device for measuring lying, standing, and moving behavior in dairy calves, and 2) to improve the information yield from this device by applying a filtering procedure allowing...... for the detection of lying versus upright. The IceTag device provides measures of intensity (I) of lying, standing, and activity measured as percent lying, percent standing, and percent active, but does not directly measure lying, standing, and moving behavior because body movements occurring while lying (e...... (LPC) was established empirically, and IceTag data were filtered according to the LPC, providing information on the posture of the animal as lying versus being upright. Third, a new threshold of I was estimated for moving activity conditional on the animal being upright. IceTag recordings from 9 calves...

  4. Automatic agar tray inoculation device

    Science.gov (United States)

    Wilkins, J. R.; Mills, S. M.

    1972-01-01

    Automatic agar tray inoculation device is simple in design and foolproof in operation. It employs either conventional inoculating loop or cotton swab for uniform inoculation of agar media, and it allows technician to carry on with other activities while tray is being inoculated.

  5. Sleep apnea diagnosis using an ECG Holter device including a nasal pressure (NP) recording: validation of visual and automatic analysis of nasal pressure versus full polysomnography.

    Science.gov (United States)

    Pépin, Jean-Louis; Defaye, Pascal; Vincent, Elodie; Christophle-Boulard, Sylvain; Tamisier, Renaud; Lévy, Patrick

    2009-06-01

    New simplified techniques for diagnosing sleep apnea should be specially tailored for easy use in cardiologic practice. e dedicated one of the channels of a Holter Electrocardiogram (ECG) device (SpiderView() ELA Medical, France) to nasal pressure (NP) recordings. We also developed an automatic analysis of NP signal providing an apnea-hypopnea index (AHI) for physicians without the know-how in sleep medicine. Thirty-four unselected patients referred for symptoms suggesting sleep apnea underwent a polysomnography (PSG) with simultaneous NP and Holter ECG recordings. An expert blinded to PSG results visually scored the Holter plus NP recordings. The results of the AHI obtained in PSG (AHI-PSG) were compared, respectively, to the AHI-NP obtained by visual analysis and automatic analysis (AHI-NP Auto) of Holter ECG nasal pressure. In 10 randomly selected subjects (development set), the best cut-off on Holter ECG for diagnosing sleep apnea patients as defined by AHI>20/h in PSG was determined at 35 events/h by a receiver operator curve (ROC) analysis. Prospective testing of this threshold was then performed in 19 subjects (test set). For visually scored recordings of Holter ECG plus NP, we obtained a negative predictive value (NPV) of 80% and a positive predictive value (PPV) of 100% for sleep apnea. The area under the ROC curve was 0.97. For the automatic analysis, the NPV was 86% and the PPV value 100%. The area under the ROC curve was 0.85. NP recording using a Holter system is an efficient and easy-to-use tool for screening for sleep-disordered breathing in routine cardiology practice.

  6. Characteristics of a new automatic hail recorder

    Science.gov (United States)

    Löffler-Mang, Martin; Schön, Dominik; Landry, Markus

    2011-06-01

    An automatic hail sensor was developed, based on signal production with microphones, a quick signal analysis and recording possibility. For this hail recorder (HARE) small piezo-electric microphones inside a Makrolon body are used to detect hailstones. The prototype has an octagonal shape, two microphones on the top and bottom plates situated in the middle of the device, and an electronic board. A hailstone striking the surface produces waves on the sensor body and a voltage in the piezo-electric microphones. Each hail event is stored in the internal memory including the time and date. The memory can be read out via a USB port at any time after one or more hail events. HARE was tested and calibrated with the help of a newly constructed pneumatic hail gun. The voltage signal at the top plate microphone of HARE increases linearly proportional to hailstone momentum, whereas at the bottom plate it increases linearly proportional to hailstone kinetic energy. For large hailstones the accuracy of HARE is in the order of 10%. Calibration of HARE is still in progress and it has not been tested in real hailfalls as yet. An online device as well as an autonomous one is available for a large number of possible applications. Lately there has been interest to use HARE at solar power plants in Southern Europe to prevent the expensive modules from becoming damaged. Perhaps HARE could also participate in new and existing hail observing networks.

  7. Automatic quality classification of entire electrocardiographic recordings obtained with a novel patch type recorder

    DEFF Research Database (Denmark)

    Saadi, Dorthe Bodholt; Hoppe, Karsten; Egstrup, Kenneth

    2014-01-01

    Recently, new patch type electrocardiogram (ECG) recorders have reached the market. These new devices possess a number of advantages compared to the traditional Holter recorders. This forms the basis of questions related to benefits and drawbacks of different ambulatory ECG recording techniques....... One of the important questions is the ability to obtain high clinical quality of the recordings during the entire monitoring period. It is thus desirable to be able to obtain an automatic estimate of the global quality of entire ECG recordings. The purpose of this pilot study is therefore to design...

  8. B Development of Automatic Load & Temperature Recording Device for Thermo-Mechanic Testing Machine%热机试验设备负荷及温度自动记录装置的研制

    Institute of Scientific and Technical Information of China (English)

    杨利萍

    2001-01-01

    An automatic load & temperature recording device was developed to meet relevant thermo-mechanical test standard.The technical parameters, basic service mechanism, commissioning and service of such a device are presen ted.%在分析热机试验标准及熟悉试验设备的基础上,进行了热机试验设备负荷及温度自 动记录装置的研制。笔者介绍了热机试验设备负荷及温度自动记录装置的技术参数要求、基 本工作原理、调试过程和实际应用效果。

  9. 30 CFR 77.410 - Mobile equipment; automatic warning devices.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Mobile equipment; automatic warning devices. 77... UNDERGROUND COAL MINES Safeguards for Mechanical Equipment § 77.410 Mobile equipment; automatic warning devices. (a) Mobile equipment such as front-end loaders, forklifts, tractors, graders, and trucks,...

  10. Automatic reference level control for an antenna pattern recording system

    Science.gov (United States)

    Lipin, R., Jr.

    1971-01-01

    Automatic gain control system keeps recorder reference levels within 0.2 decibels during operation. System reduces recorder drift during antenna radiation distribution determinations over an eight hour period.

  11. Event-recording devices with identification codes

    Science.gov (United States)

    Watters, David G. (Inventor); Huestis, David L. (Inventor); Bahr, Alfred J. (Inventor); Vidmar, Robert J. (Inventor)

    2003-01-01

    A recording device allows wireless interrogation to determine its identity and its state. The state indicates whether one or more physical or chemical events have taken place. In effect, the one or more physical or chemical events are recorded by the device. The identity of the device allows it to be distinguished from a number of similar devices. The recording device may be used in an array of devices that allows wireless probing by an interrogation unit. When probed, each device tells the interrogator who it is and what state it is in. The devices allow multiple use and the interrogator may use a logical reset to determine the state of each device. The interrogator can thus easily identify particular items in an array that have reached a particular condition. The device may record the status of each device in a database to maintain a history for each.

  12. Automatic device for maintenance on safety relief valve

    Energy Technology Data Exchange (ETDEWEB)

    Fujio, M. [Okano Valve Mfg. Co. Ltd., Kitakyushu, Fukuoka (Japan)

    1996-02-01

    This system offers shorter, labor-saving periodic inspection of nuclear power plants particularly for maintenance of in the BWR plant. This automatic device has the following performance features. (author).

  13. 30 CFR 75.1103-4 - Automatic fire sensor and warning device systems; installation; minimum requirements.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Automatic fire sensor and warning device...-UNDERGROUND COAL MINES Fire Protection § 75.1103-4 Automatic fire sensor and warning device systems; installation; minimum requirements. (a) Effective December 31, 2009, automatic fire sensor and warning device...

  14. 30 CFR 75.1103-3 - Automatic fire sensor and warning device systems; minimum requirements; general.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Automatic fire sensor and warning device...-UNDERGROUND COAL MINES Fire Protection § 75.1103-3 Automatic fire sensor and warning device systems; minimum requirements; general. Automatic fire sensor and warning device systems installed in belt haulageways of...

  15. Semi-automatic microdrive system for positioning electrodes during electrophysiological recordings from rat brain

    Science.gov (United States)

    Dabrowski, Piotr; Kublik, Ewa; Mozaryn, Jakub

    2015-09-01

    Electrophysiological recording of neuronal action potentials from behaving animals requires portable, precise and reliable devices for positioning of multiple microelectrodes in the brain. We propose a semi-automatic microdrive system for independent positioning of up to 8 electrodes (or tetrodes) in a rat (or larger animals). Device is intended to be used in chronic, long term recording applications in freely moving animals. Our design is based on independent stepper motors with lead screws which will offer single steps of ~ μm semi-automatically controlled from the computer. Microdrive system prototype for one electrode was developed and tested. Because of the lack of the systematic test procedures dedicated to such applications, we propose the evaluation of the prototype similar to ISO norm for industrial robots. To this end we designed and implemented magnetic linear and rotary encoders that provided information about electrode displacement and motor shaft movement. On the basis of these measurements we estimated repeatability, accuracy and backlash of the drive. According to the given assumptions and preliminary tests, the device should provide greater accuracy than hand-controlled manipulators available on the market. Automatic positioning will also shorten the course of the experiment and improve the acquisition of signals from multiple neuronal populations.

  16. Automatic pattern acquisition from game records in GO

    Institute of Scientific and Technical Information of China (English)

    LIU Zhi-qing; DOU Qing

    2007-01-01

    Computer programs of GO are typically constructed using a knowledge-based approach with heuristics and pattern matching because of enormous complexities of the game. In this approach, quantity, quality, and consistency of patterns used in computer programs of GO to a large extent determine the strengths of the programs. This study presents an effective method to acquire automatically comprehensive GO patterns from large collections of game records. Statistical usages of the patterns ensure consistency and quality of the patterns, which in turn can help improve the strengths of computer GO programs.Additionally, statistical usages of patterns from different sources of game records clearly show subtle and significant discrepancies among various types of GO players, and clarify certain myths in the playing of GO.

  17. Automatic Real-Time Embedded QRS Complex Detection for a Novel Patch-Type Electrocardiogram Recorder

    DEFF Research Database (Denmark)

    Saadi, Dorthe Bodholt; Tanev, George; Flintrup, Morten

    2015-01-01

    Cardiovascular diseases are projected to remain the single leading cause of death globally. Timely diagnosis and treatment of these diseases are crucial to prevent death and dangerous complications. One of the important tools in early diagnosis of arrhythmias is analysis of electrocardiograms (ECGs......) obtained from ambulatory long-term recordings. The design of novel patch-type ECG recorders has increased the accessibility of these long-term recordings. In many applications, it is furthermore an advantage for these devices that the recorded ECGs can be analyzed automatically in real time. The purpose....... The design and optimization of the algorithm was performed on two different databases: The MIT-BIH arrhythmia database ( $Se=99.90$ %, $P^{+}=99.87$ ) and a private ePatch training database ( $Se=99.88$ %, $P^{+}=99.37$ %). The offline validation was conducted on the European ST-T database ( $Se=99.84$ %, $P...

  18. 21 CFR 820.184 - Device history record.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Device history record. 820.184 Section 820.184 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES QUALITY SYSTEM REGULATION Records § 820.184 Device history record. Each manufacturer...

  19. 76 FR 58301 - Proposed Extension of Existing Information Collection; Automatic Fire Sensor and Warning Device...

    Science.gov (United States)

    2011-09-20

    ... Sensor and Warning Device Systems; Examination and Test Requirements ACTION: Notice of request for public... Coal Mining. OMB 1219-0145 has been renamed Automatic Fire Sensor and Warning Device Systems... to a task in July 2011; OMB 1219-0073 subsumed Sec. 75.1103-5(a)(2)(ii) Automatic fire sensor and...

  20. Low-cost automatic activity data recording system

    Directory of Open Access Journals (Sweden)

    Moraes M.F.D.

    1997-01-01

    Full Text Available We describe a low-cost, high quality device capable of monitoring indirect activity by detecting touch-release events on a conducting surface, i.e., the animal's cage cover. In addition to the detecting sensor itself, the system includes an IBM PC interface for prompt data storage. The hardware/software design, while serving for other purposes, is used to record the circadian activity rhythm pattern of rats with time in an automated computerized fashion using minimal cost computer equipment (IBM PC XT. Once the sensor detects a touch-release action of the rat in the upper portion of the cage, the interface sends a command to the PC which records the time (hours-minutes-seconds when the activity occurred. As a result, the computer builds up several files (one per detector/sensor containing a time list of all recorded events. Data can be visualized in terms of actograms, indicating the number of detections per hour, and analyzed by mathematical tools such as Fast Fourier Transform (FFT or cosinor. In order to demonstrate method validation, an experiment was conducted on 8 Wistar rats under 12/12-h light/dark cycle conditions (lights on at 7:00 a.m.. Results show a biological validation of the method since it detected the presence of circadian activity rhythm patterns in the behavior of the rats

  1. Wireless event-recording device with identification codes

    Science.gov (United States)

    Watters, David G. (Inventor); Huestis, David L. (Inventor); Bahr, Alfred J. (Inventor)

    2004-01-01

    A wireless recording device can be interrogated to determine its identity and its state. The state indicates whether a particular physical or chemical event has taken place. In effect, the physical or chemical event is recorded by the device. The identity of the device allows it to be distinguished from a number of similar devices. Thus the sensor device may be used in an array of devices that can be probed by a wireless interrogation unit. The device tells the interrogator who it is and what state it is in. The interrogator can thus easily identify particular items in an array that have reached a particular condition.

  2. Measurement of radial artery spasm using an automatic pullback device.

    Science.gov (United States)

    Kiemeneij, F; Vajifdar, B U; Eccleshall, S C; Laarman, G; Slagboom, T; van der Wieken, R

    2001-12-01

    Current evaluation of radial artery spasm (RAS), a frequent finding during the transradial approach for coronary angiography and angioplasty (TRA), is subjective. A quantitative measure of RAS will help in evaluation and comparison of management strategies. The objectives of the study were to assess the feasibility and safety of using an automatic pullback device (APD) for removal of transradial introducer sheaths and to establish a parameter to quantify RAS. In 50 consecutive transradial procedures, the APD was used to measure the force required for sheath removal. The mean maximal pullback force (MPF) was 0.53 +/- 0.52 kg (range, 0.1-3.0 kg). In 48 (96%) cases, the MPF was reached within the first 5 sec of pullback. All patients with clinical RAS (n = 4) had an MPF greater than 1.0 kg, while the remaining had an MPF less than 1.0 kg. All patients with severe pain during sheath removal (n = 3) had an MPF greater than 1.0 kg, while no patient with an MPF less than 1.0 kg had severe pain. It is feasible and safe to remove transradial introducer sheaths using the APD. The MPF is achieved within the first 5 sec of pullback and is a reliable parameter to quantify RAS. An MPF more than 1.0 kg correlates with clinical RAS and is associated with severe pain during sheath removal.

  3. Automatic Real-Time Embedded QRS Complex Detection for a Novel Patch-Type Electrocardiogram Recorder.

    Science.gov (United States)

    Saadi, Dorthe B; Tanev, George; Flintrup, Morten; Osmanagic, Armin; Egstrup, Kenneth; Hoppe, Karsten; Jennum, Poul; Jeppesen, Jørgen L; Iversen, Helle K; Sorensen, Helge B D

    2015-01-01

    Cardiovascular diseases are projected to remain the single leading cause of death globally. Timely diagnosis and treatment of these diseases are crucial to prevent death and dangerous complications. One of the important tools in early diagnosis of arrhythmias is analysis of electrocardiograms (ECGs) obtained from ambulatory long-term recordings. The design of novel patch-type ECG recorders has increased the accessibility of these long-term recordings. In many applications, it is furthermore an advantage for these devices that the recorded ECGs can be analyzed automatically in real time. The purpose of this study was therefore to design a novel algorithm for automatic heart beat detection, and embed the algorithm in the CE marked ePatch heart monitor. The algorithm is based on a novel cascade of computationally efficient filters, optimized adaptive thresholding, and a refined search back mechanism. The design and optimization of the algorithm was performed on two different databases: The MIT-BIH arrhythmia database ([Formula: see text]%, [Formula: see text]) and a private ePatch training database ([Formula: see text]%, [Formula: see text]%). The offline validation was conducted on the European ST-T database ([Formula: see text]%, [Formula: see text]%). Finally, a double-blinded validation of the embedded algorithm was conducted on a private ePatch validation database ([Formula: see text]%, [Formula: see text]%). The algorithm was thus validated with high clinical performance on more than 300 ECG records from 189 different subjects with a high number of different abnormal beat morphologies. This demonstrates the strengths of the algorithm, and the potential for this embedded algorithm to improve the possibilities of early diagnosis and treatment of cardiovascular diseases.

  4. A Device to Record Infant Head Position

    Science.gov (United States)

    DeLucia, Clement; Bullinger, Andre

    1976-01-01

    The device described is a system to indicate left-to-right head position. It is limited to indicating relative left-right movements without vertical or up-down discrimination. Although developed for newborns, the system can be applied to older subjects by using a holding device for the infant. (JH)

  5. 30 CFR 75.1103-8 - Automatic fire sensor and warning device systems; examination and test requirements.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Automatic fire sensor and warning device...-UNDERGROUND COAL MINES Fire Protection § 75.1103-8 Automatic fire sensor and warning device systems; examination and test requirements. (a) Automatic fire sensor and warning device systems shall be examined at...

  6. Embedded RFID Recorder in short-range wireless devices

    DEFF Research Database (Denmark)

    2010-01-01

    range communication devices. The problem is solved in that the portable communications device comprises a wireless communications interface for communicating with another device, a memory and an RFID-recorder for receiving an RFID-signal transmitted from an RFID-interrogator, wherein the device...... is adapted for storing individual received RFID-signals in the memory. An advantage of the invention is that it provides a relatively simple scheme for extracting information from a current environment of a portable communications device. The invention may e.g. be used for adapting listening devices, e...

  7. Embedded RFID Recorder in short-range wireless devices

    DEFF Research Database (Denmark)

    2010-01-01

    range communication devices. The problem is solved in that the portable communications device comprises a wireless communications interface for communicating with another device, a memory and an RFID-recorder for receiving an RFID-signal transmitted from an RFID-interrogator, wherein the device...... is adapted for storing individual received RFID-signals in the memory. An advantage of the invention is that it provides a relatively simple scheme for extracting information from a current environment of a portable communications device. The invention may e.g. be used for adapting listening devices, e...

  8. A Device for Automatically Measuring and Supervising the Critical Care Patient’S Urine Output

    Directory of Open Access Journals (Sweden)

    Roemi Fernández

    2010-01-01

    Full Text Available Critical care units are equipped with commercial monitoring devices capable of sensing patients’ physiological parameters and supervising the achievement of the established therapeutic goals. This avoids human errors in this task and considerably decreases the workload of the healthcare staff. However, at present there still is a very relevant physiological parameter that is measured and supervised manually by the critical care units’ healthcare staff: urine output. This paper presents a patent-pending device capable of automatically recording and supervising the urine output of a critical care patient. A high precision scale is used to measure the weight of a commercial urine meter. On the scale’s pan there is a support frame made up of Bosch profiles that isolates the scale from force transmission from the patient’s bed, and guarantees that the urine flows properly through the urine meter input tube. The scale’s readings are sent to a PC via Bluetooth where an application supervises the achievement of the therapeutic goals. The device is currently undergoing tests at a research unit associated with the University Hospital of Getafe in Spain.

  9. Design and implementation of automatic shading device for diffuse radiation measurement

    Institute of Scientific and Technical Information of China (English)

    LYU; Wenhua; BIAN; Zeqiang; CHONG; Wei

    2015-01-01

    Considering the problem of too large area the shading disc covered,complex shadow band coefficients and too big diffuse radiation measurement bias,an automatic shading device for diffuse radiometer is designed and realized. Set a shading ball on the automatic sun tracker,drive linkage parallelogram structure with the declination axis arm,the shading ball can rotate synchronously with the motion of the sun and shade beam radiation measured with pyranometer,thus shading beam radiation and measuring diffuse radiation can be realized automatically. The comparison test results show that the automatic shading device can realize diffuse radiation measurement automatically,the accuracy of diffuse radiation readings can get a 18. 7% improvement compared with traditional measure system,greatly improves the reliability and accuracy of the diffuse radiation measurement.

  10. Early automatic detection of Parkinson's disease based on sleep recordings

    DEFF Research Database (Denmark)

    Kempfner, Jacob; Sorensen, Helge B D; Nikolic, Miki;

    2014-01-01

    SUMMARY: Idiopathic rapid-eye-movement (REM) sleep behavior disorder (iRBD) is most likely the earliest sign of Parkinson's Disease (PD) and is characterized by REM sleep without atonia (RSWA) and consequently increased muscle activity. However, some muscle twitching in normal subjects occurs...... the number of outliers during REM sleep was used as a quantitative measure of muscle activity. RESULTS: The proposed method was able to automatically separate all iRBD test subjects from healthy elderly controls and subjects with periodic limb movement disorder. CONCLUSION: The proposed work is considered...... during REM sleep. PURPOSE: There are no generally accepted methods for evaluation of this activity and a normal range has not been established. Consequently, there is a need for objective criteria. METHOD: In this study we propose a full-automatic method for detection of RSWA. REM sleep identification...

  11. CURRENT STATE ANALYSIS OF AUTOMATIC BLOCK SYSTEM DEVICES, METHODS OF ITS SERVICE AND MONITORING

    Directory of Open Access Journals (Sweden)

    A. M. Beznarytnyy

    2014-01-01

    Full Text Available Purpose. Development of formalized description of automatic block system of numerical code based on the analysis of characteristic failures of automatic block system and procedure of its maintenance. Methodology. For this research a theoretical and analytical methods have been used. Findings. Typical failures of the automatic block systems were analyzed, as well as basic reasons of failure occur were found out. It was determined that majority of failures occurs due to defects of the maintenance system. Advantages and disadvantages of the current service technology of automatic block system were analyzed. Works that can be automatized by means of technical diagnostics were found out. Formal description of the numerical code of automatic block system as a graph in the state space of the system was carried out. Originality. The state graph of the numerical code of automatic block system that takes into account gradual transition from the serviceable condition to the loss of efficiency was offered. That allows selecting diagnostic information according to attributes and increasing the effectiveness of recovery operations in the case of a malfunction. Practical value. The obtained results of analysis and proposed the state graph can be used as the basis for the development of new means of diagnosing devices for automatic block system, which in turn will improve the efficiency and service of automatic block system devices in general.

  12. Development of an automatic calibration device for high-accuracy low temperature thermometers

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Based on the analysis and investigation of calibration systems for high-accuracy low temperature thermometers,a new facility for automatic calibration of high-accuracy low temperature thermometers was developed.Continuous calibration for multiple points can be made automatically with this device.According to the thermophysical characteristics of the constant-temperature block in this device,segmented Fuzzy-PID (proportional-integral-differential) algorithm was applied.The experimental results showed that the temperature fluctuation was smaller than ±0.005 K in 30 min.Therefore,this new device can fully meet the calibration requirement of high-precision low temperature thermometers.

  13. Medical Devices; Ophthalmic Devices; Classification of the Diurnal Pattern Recorder System. Final order.

    Science.gov (United States)

    2016-05-31

    The Food and Drug Administration (FDA) is classifying the diurnal pattern recorder system into class II (special controls). The special controls that will apply to the device are identified in this order and will be part of the codified language for the diurnal pattern recorder system's classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

  14. An automatic synthesis method of compact models of integrated circuit devices based on equivalent circuits

    Science.gov (United States)

    Abramov, I. I.

    2006-05-01

    An automatic synthesis method of equivalent circuits of integrated circuit devices is described in the paper. This method is based on a physical approach to construction of finite-difference approximation to basic equations of semiconductor device physics. It allows to synthesize compact equivalent circuits of different devices automatically as alternative to, for example, sufficiently formal BSIM2 and BSIM3 models used in circuit simulation programs of SPICE type. The method is one of possible variants of general methodology for automatic synthesis of compact equivalent circuits of almost arbitrary devices and circuit-type structures of micro- and nanoelecronics [1]. The method is easily extended in the case of necessity to account thermal effects in integrated circuits. It was shown that its application would be especially perspective for analysis of integrated circuit fragments as a whole and for identification of significant collective physical effects, including parasitic effects in VLSI and ULSI. In the paper the examples illustrating possibilities of the method for automatic synthesis of compact equivalent circuits of some of semiconductor devices and integrated circuit devices are considered. Special attention is given to examples of integrated circuit devices for coarse grids of spatial discretization (less than 10 nodes).

  15. Susceptibility study of audio recording devices to electromagnetic stimulations

    Energy Technology Data Exchange (ETDEWEB)

    Halligan, Matthew S.; Grant, Steven.

    2014-02-01

    Little research has been performed to study how intentional electromagnetic signals may couple into recording devices. An electromagnetic susceptibility study was performed on an analog tape recorder, a digital video camera, a wired computer microphone, and a wireless microphone system to electromagnetic interference. Devices were subjected to electromagnetic stimulations in the frequency range of 1-990 MHz and field strengths up to 4.9 V/m. Carrier and message frequencies of the stimulation signals were swept, and the impacts of device orientation and antenna polarization were explored. Message signals coupled into all devices only when amplitude modulated signals were used as stimulation signals. Test conditions that produced maximum sensitivity were highly specific to each device. Only narrow carrier frequency ranges could be used for most devices to couple messages into recordings. A basic detection technique using cross-correlation demonstrated the need for messages to be as long as possible to maximize message detection and minimize detection error. Analysis suggests that detectable signals could be coupled to these recording devices under realistic ambient conditions.

  16. Automatic devices for electrochemical water treatment with cooling of electrolyte

    Directory of Open Access Journals (Sweden)

    Trišović Tomislav Lj.

    2016-01-01

    Full Text Available The most common disinfectants for water treatment are based on chlorine and its compounds. Practically, water treatments with chlorine compounds have no alternative, since they provide, in comparison to other effective processes such as ozonization or ultraviolet irradiation, high residual disinfection capacity. Unfortunately, all of chlorine-based compounds for disinfection tend to degrade during storage, thus reducing the concentration of active chlorine. Apart from degradation, additional problems are transportation, storage and handling of such hazardous compounds. Nowadays, a lot of attention is paid to the development of electrochemical devices for in situ production of chlorine dioxide or sodium hypochlorite as efficient disinfectants for water treatment. The most important part of such a device is the electrochemical reactor. Electrochemical reactor uses external source of direct current in order to produce disinfectants in electrochemical reactions occurring at the electrodes. Construction of an electrochemical device for water treatment is based on evaluation of optimal conditions for electrochemical reactions during continues production of disinfectants. The aim of this study was to develop a low-cost electrochemical device for the production of disinfectant, active chlorine, at the place of its usage, based on newly developed technical solutions and newest commercial components. The projected electrochemical device was constructed and mounted, and its operation was investigated. Investigations involved both functionality of individual components and device in general. The major goal of these investigations was to achieve maximal efficiency in extreme condition of elevated room temperature and humidity with a novel device construction involving coaxial heat exchanger at the solution inlet. Room operation of the proposed device was investigated when relative humidity was set to 90% and the ambient temperature of 38°C. The obtained

  17. Measuring directional characteristics of in-ear recording devices

    DEFF Research Database (Denmark)

    Christensen, Flemming; Hoffmann, Pablo F.; Hammershøi, Dorte

    2013-01-01

    With the availability of small in-ear headphones and miniature microphones it is possible to construct combined in-ear devices for binaural recording and playback. When mounting a microphone on the outside of an insert earphone the microphone position deviates from ideal positions in the ear canal....... The pinna and thereby also the natural sound transmission are altered by the inserted device. This paper presents a methodology for accurately measuring the directional dependent transfer functions of such in-ear devices. Pilot measurements on a commercial available device are presented and possibilities...

  18. Automatic Provenance Recording for Scientific Data using Trident

    Science.gov (United States)

    Simmhan, Y.; Barga, R.; van Ingen, C.

    2008-12-01

    Provenance is increasingly recognized as being critical to the understanding and reuse of scientific datasets. Given the rapid generation of scientific data from sensors and computational model results, it is not practical to manually record provenance for data and automated techniques for provenance capture are essential. Scientific workflows provide a framework for representing computational models and complex transformations of scientific data, and present a means for tracking the operations performed to derive a dataset. The Trident Scientific Workbench is a workflow system that natively incorporates provenance capture of data derived as part of the workflow execution. The applications used as part of a Trident workflow can execute on a remote computational cluster, such as a supercomputing center on in the Cloud, or on the local desktop of the researcher, and provenance on data derived by the applications is seamlessly captured. Scientists also have the option to annotate the provenance metadata using domain specific tags such as, for example, GCMD keywords. The provenance records thus captured can be exported in the Open Provenance Model* XML format that is emerging as a provenance standard in the eScience community or visualized as a graph of data and applications. The Trident workflow system and provenance recorded by it has been successfully applied in the Neptune oceanography project and is presently being tested in the Pan-STARRS astronomy project. *http://twiki.ipaw.info/bin/view/Challenge/OPM

  19. Flight Investigation of the Effectiveness of an Automatic Aileron Trim Control Device for Personal Airplanes

    Science.gov (United States)

    Phillips, William H; Kuehnel, Helmut A; Whitten, James B

    1957-01-01

    A flight investigation to determine the effectiveness of an automatic aileron trim control device installed in a personal airplane to augment the apparent spiral stability has been conducted. The device utilizes a rate-gyro sensing element in order to switch an on-off type of control that operates the ailerons at a fixed rate through control centering springs. An analytical study using phase-plane and analog-computer methods has been carried out to determine a desirable method of operation for the automatic trim control.

  20. An electronic device to record consensual reflex in human pupil.

    Science.gov (United States)

    Pinheiro, H M; Costa, R M; Camilo, E N R; Gang, Hua

    2015-01-01

    Examination of the pupil offers an objective evaluation of visual function as well as the vegetative pathways to the eye. This work proposes the development of an effective method and a portable device to test the consensual pupillary reflex. The first results demonstrate the success of a new device construction and methodology to record the consensual reflex with different stimulus, in a situation of complete blockage of light.

  1. Utilizing Electronic Health Record Information to Optimize Medication Infusion Devices: A Manual Data Integration Approach.

    Science.gov (United States)

    Chuk, Amanda; Maloney, Robert; Gawron, Joyce; Skinner, Colin

    Health information technology is increasingly utilized within healthcare delivery systems today. Two examples of this type of technology include the capture of patient-specific information within an electronic health record and intravenous medication infusion devices equipped with dose error reduction software known as drug libraries. Automatic integration of these systems, termed intravenous (IV) interoperability, should serve as the goal toward which all healthcare systems work to maximize patient safety. For institutions lacking IV interoperability, we describe a manual approach of querying the electronic health record to incorporate medication administration information with data from infusion device software to optimize drug library settings. This approach serves to maximize utilization of available information to optimize medication safety provided by drug library software.

  2. Daily Life Event Segmentation for Lifestyle Evaluation Based on Multi-Sensor Data Recorded by a Wearable Device*

    Science.gov (United States)

    Li, Zhen; Wei, Zhiqiang; Jia, Wenyan; Sun, Mingui

    2013-01-01

    In order to evaluate people’s lifestyle for health maintenance, this paper presents a segmentation method based on multi-sensor data recorded by a wearable computer called eButton. This device is capable of recording more than ten hours of data continuously each day in multimedia forms. Automatic processing of the recorded data is a significant task. We have developed a two-step summarization method to segment large datasets automatically. At the first step, motion sensor signals are utilized to obtain candidate boundaries between different daily activities in the data. Then, visual features are extracted from images to determine final activity boundaries. It was found that some simple signal measures such as the combination of a standard deviation measure of the gyroscope sensor data at the first step and an image HSV histogram feature at the second step produces satisfactory results in automatic daily life event segmentation. This finding was verified by our experimental results. PMID:24110323

  3. Design and implementation of an underwater sound recording device

    Energy Technology Data Exchange (ETDEWEB)

    Martinez, Jayson J.; Myers, Joshua R.; Carlson, Thomas J.; Deng, Zhiqun; Rohrer, John S.; Caviggia, Kurt A.

    2011-09-19

    The purpose of this study was to design and build two versions of an underwater sound recording device. The device designed is referred to as the Underwater Sound Recorder (USR), which can be connected to one or two hydrophones or other underwater sound sensors. The URS contains a 26 dB preamplifier and a user selectable gain that permits additional amplification of input to the system from 26 dB to 46 dB. Signals within the frequency range up to 15 kHz may be recorded using the USR. Examples of USR applications are monitoring underwater processes that have the potential to create large pressure waves that could potentially harm fish or other aquatic life, such as underwater explosions or pile driving. Additional applications are recording sound generated by vessels or the vocalizations of some marine mammals, such as the calls from many species of whales.

  4. Research methodology simplification for teaching purposes illustrated by clutch automatic control device testing

    Science.gov (United States)

    Wojs, J.

    2016-09-01

    The paper proves that simplified, shorter examination of an object, feasible in laboratory classes, can produce results similar to those reached in scientific investigation of the device using extensive equipment. A thorough investigation of an object, an automatic clutch device in this case, enabled identifying the magnitudes that most significantly affect its operation. The knowledge of these most sensitive magnitudes allows focusing in the teaching process on simplified measurement of only selected magnitudes and verifying the given object in the positive or negative.

  5. Automatic fitting of spiking neuron models to electrophysiological recordings

    Directory of Open Access Journals (Sweden)

    Cyrille Rossant

    2010-03-01

    Full Text Available Spiking models can accurately predict the spike trains produced by cortical neurons in response to somatically injected currents. Since the specific characteristics of the model depend on the neuron, a computational method is required to fit models to electrophysiological recordings. The fitting procedure can be very time consuming both in terms of computer simulations and in terms of code writing. We present algorithms to fit spiking models to electrophysiological data (time-varying input and spike trains that can run in parallel on graphics processing units (GPUs. The model fitting library is interfaced with Brian, a neural network simulator in Python. If a GPU is present it uses just-in-time compilation to translate model equations into optimized code. Arbitrary models can then be defined at script level and run on the graphics card. This tool can be used to obtain empirically validated spiking models of neurons in various systems. We demonstrate its use on public data from the INCF Quantitative Single-Neuron Modeling 2009 competition by comparing the performance of a number of neuron spiking models.

  6. The AMIDA automatic content linking device: Just-in-time document retrieval in meetings

    NARCIS (Netherlands)

    Popescu-Belis, A.; Boertjes, E.M.; Kilgour, J.; Poller, P.; Castronovo, S.; Wilson, T.; Jaimes, A.; Carletta, J.

    2008-01-01

    The AMIDA Automatic Content Linking Device (ACLD) is a just-in-time document retrieval system for meeting environments. The ACLD listens to a meeting and displays information about the documents from the group's history that are most relevant to what is being said. Participants can view an outline

  7. The two-probe device for automatic measurement of the reflection coefficient

    Directory of Open Access Journals (Sweden)

    Л.Я. Ільницький

    2004-01-01

    Full Text Available  The two-probe device for automatic measurement of the reflection coefficient in the HF range is proposed and analyzed. The main parts in the instrument control system are the sum-and-difference bridge and the microprocessor.

  8. A new portable device for automatic controlled-gradient cryopreservation of blood mononuclear cells

    DEFF Research Database (Denmark)

    Hviid, L; Albeck, G; Hansen, B

    1993-01-01

    , which has proved suitable for field conditions. We report here the development and testing of a similar micro-controller regulated device, allowing unattended and automatic controlled-gradient cell freezing. The equipment exploits the temperature gradient present between the liquid N2 surface...

  9. Comparability of modern recording devices for speech analysis: smartphone, landline, laptop, and hard disc recorder.

    Science.gov (United States)

    Vogel, Adam P; Rosen, Kristin M; Morgan, Angela T; Reilly, Sheena

    2014-01-01

    Large-scale multi-site experimental and clinical speech protocols require high-fidelity, easy-to-use speech recording technologies. However, little is known about the reliability and comparability of affordable, portable and commonly used technologies with traditional well-validated devices (e.g., a hard disc recorder with a high-quality microphone). To examine the comparability of speech and voice samples acquired from protocols involving high- and low-quality devices. Speech samples were acquired simultaneously from 15 healthy adults using four devices and analyzed acoustically for measures of timing and voice quality. For the purpose of making initial comparisons, methods were deemed comparable if the resultant acoustic data yielded root mean squared error values ≤10% and statistically significant Spearman's correlation coefficients. The data suggest that there is significant and widespread variability in the quality and reliability between different acquisition methods for voice and speech recording. Not one method provided statistically similar data to the protocol using the benchmark device (i.e., a high-quality recorder coupled with a condenser microphone). Acoustic analysis cannot be assumed to be comparable if different recording methods are used to record speech. Findings have implications for researchers and clinicians hoping to make comparisons between labs or, where lower-quality devices are suggested, to offer equal fidelity. © 2015 S. Karger AG, Basel.

  10. Automatic switching and guidance system to facilitate unassisted uroflowmetry using commercial electronic devices.

    Science.gov (United States)

    Terai, Akito; Ueda, Nobufumi; Utsunomiya, Noriaki; Kohei, Naoki; Aoyama, Teruyoshi; Inoue, Koji

    2006-08-01

    To enable male patients to undergo uroflowmetry in a private condition without medical supervision, we devised an automatic switching and patient guidance system for the spinning disk uroflowmeter Urodyn 1000, using two commercial electronic devices (an infrared motion sensor tap and a memorizable vacuum fluorescent display). Instead of running the uroflowmeter continuously, which shortens the life of the spinning disk due to mechanical wear, an infrared motion sensor turns on the devices each time a patient enters the room. The patient urinates according to the timely instructions on the visible display and voided urine directly flows into a urinal. The devices are automatically turned off 5 min after the patient leaves the room. With the use of our system, men already acquainted with uroflowmetry could perform self-administered uroflowmetry any time in private. The system was considered useful for improving the quality of patient service.

  11. The use of a new automatic device for patients' assessment at Triage in Emergency Department

    Directory of Open Access Journals (Sweden)

    Salvatore Di Somma

    2013-06-01

    Full Text Available Objectives: To assess time saving in an Emergency Department arising out of the introduction of automatic devices (Carescape™ V100 to measure vital signs compared to the manual devices. Methods: We performed a prospective, observational study of eligible patients referring to Sant’Andrea Hospital Emergency Department during the entire month of October 2009, randomly assigned into two groups. In the first group of 476 patients vital signs measurements were detected with manual devices, while in the second group of 477 patients with automatic device Carescape™ V100. Results: Data indicated that the comparison of the total time between the two groups gave a significant difference (1993 vs 1518 min, p < 0.001. No differences were found with respect to age, sex and priority codes. Significant differences were also found when comparing the subgroups of the same acuity categories: white codes 4.33 vs 2.27 (min, p < 0.05; green codes 4.28 vs 3.37 (min, p < 0.001; yellow codes 3.92 vs 2.72 (min, p < 0.001. Conclusions: Our data demonstrated a statistical significance between the two groups with a difference of 475 minutes spent in Triage procedures including vital signs measurements. In conclusion time saved by vital signs automatic device could allow ED physicians to make a qualified approach with an earlier diagnosis and a more rapid and effective therapy, possibly improving patients’ outcomes. ABSTRACT of data concerning vital signs quality assessment, because we did not compare the two methods in the same patient and we did not correlate Triage priority evaluation with patients’ outcomes. In the future further studies should be specifically aimed to address this issue. In conclusion time saved by vital signs automatic device could allow ED physicians to make a qualified approach to patient with an earlier diagnosis and a more rapid and effective therapy, possibly improving patients’ outcomes.

  12. Manual editing of automatically recorded data in an anesthesia information management system.

    Science.gov (United States)

    Wax, David B; Beilin, Yaakov; Hossain, Sabera; Lin, Hung-Mo; Reich, David L

    2008-11-01

    Anesthesia information management systems allow automatic recording of physiologic and anesthetic data. The authors investigated the prevalence of such data modification in an academic medical center. The authors queried their anesthesia information management system database of anesthetics performed in 2006 and tabulated the counts of data points for automatically recorded physiologic and anesthetic parameters as well as the subset of those data that were manually invalidated by clinicians (both with and without alternate values manually appended). Patient, practitioner, data source, and timing characteristics of recorded values were also extracted to determine their associations with editing of various parameters in the anesthesia information management system record. A total of 29,491 cases were analyzed, 19% of which had one or more data points manually invalidated. Among 58 attending anesthesiologists, each invalidated data in a median of 7% of their cases when working as a sole practitioner. A minority of invalidated values were manually appended with alternate values. Pulse rate, blood pressure, and pulse oximetry were the most commonly invalidated parameters. Data invalidation usually resulted in a decrease in parameter variance. Factors independently associated with invalidation included extreme physiologic values, American Society of Anesthesiologists physical status classification, emergency status, timing (phase of the procedure/anesthetic), presence of an intraarterial catheter, resident or certified registered nurse anesthetist involvement, and procedure duration. Editing of physiologic data automatically recorded in an anesthesia information management system is a common practice and results in decreased variability of intraoperative data. Further investigation may clarify the reasons for and consequences of this behavior.

  13. Designing of an Automatic Paraffin Controlling Device for a Beam Well

    Institute of Scientific and Technical Information of China (English)

    YAN Jian; LIU Xiao-juan; LI Shu-qin; YANG Shi-hao; ZHANG Ning-sheng

    2008-01-01

    Aiming at the paraffin-deposition problem of a beam well,the automatic paraffin-controlling device is designed by making use of ratchet-pallet mechanism,cam echanism and modern designing method.The device has four main functions:paraffin-controlling,paraffin removal,centralizing the pumping rod,and improving the safety of well tubing.This device integrates the advantages of the paraffin control,such as strong magnetic paraffin controlling and mechanical paraffin-cntting.Theoretical analysis shows that this device has fine working reliability.It turns out to be a new device which can solve the paraffin-deposition problem of a beam well economieally and efficiently.

  14. A new asymmetric directional microphone algorithm with automatic mode-switching ability for binaural hearing support devices.

    Science.gov (United States)

    Kim, Jinryoul; Nam, Kyoung Won; Yook, Sunhyun; Jang, Dong Pyo; Kim, In Young; Hong, Sung Hwa

    2015-06-01

    For hearing support devices, it is important to minimize the negative effect of ambient noises for speech recognition but also, at the same time, supply natural ambient sounds to the hearing-impaired person. However, conventional fixed bilateral asymmetric directional microphone (DM) algorithms cannot perform in such a way when the DM-mode device and a dominant noise (DN) source are placed on the same lateral hemisphere. In this study, a new binaural asymmetric DM algorithm that can overcome the defects of conventional algorithms is proposed. The proposed algorithm can estimate the position of a specific DN in the 90°-270° range and switch directional- and omnidirectional-mode devices automatically if the DM-mode device and the DN are placed in opposite lateral hemispheres. Computer simulation and KEMAR mannequin recording tests demonstrated that the performance of the conventional algorithm deteriorated when the DM-mode device and the DN were placed in the opposite hemisphere; in contrast, the performance of the proposed algorithm was consistently maintained regardless of directional variations in the DN. Based on these experimental results, the proposed algorithm may be able to improve speech quality and intelligibility for hearing-impaired persons who have similar degrees of hearing impairment in both ears.

  15. Design and Implementation of an Underwater Sound Recording Device

    Directory of Open Access Journals (Sweden)

    Christa M. Woodley

    2011-09-01

    Full Text Available To monitor the underwater sound and pressure waves generated by anthropogenic activities such as underwater blasting and pile driving, an autonomous system was designed to record underwater acoustic signals. The underwater sound recording device (USR allows for connections of two hydrophones or other dynamic pressure sensors, filters high frequency noise out of the collected signals, has a gain that can be independently set for each sensor, and allows for 2 h of data collection. Two versions of the USR were created: a submersible model deployable to a maximum depth of 300 m, and a watertight but not fully submersible model. Tests were performed on the USR in the laboratory using a data acquisition system to send single-frequency sinusoidal voltages directly to each component. These tests verified that the device operates as designed and performs as well as larger commercially available data acquisition systems, which are not suited for field use. On average, the designed gain values differed from the actual measured gain values by about 0.35 dB. A prototype of the device was used in a case study to measure blast pressures while investigating the effect of underwater rock blasting on juvenile Chinook salmon and rainbow trout. In the case study, maximum positive pressure from the blast was found to be significantly correlated with frequency of injury for individual fish. The case study also demonstrated that the device withstood operation in harsh environments, making it a valuable tool for collecting field measurements.

  16. A method for the automatic reconstruction of fetal cardiac signals from magnetocardiographic recordings

    Science.gov (United States)

    Mantini, D.; Alleva, G.; Comani, S.

    2005-10-01

    Fetal magnetocardiography (fMCG) allows monitoring the fetal heart function through algorithms able to retrieve the fetal cardiac signal, but no standardized automatic model has become available so far. In this paper, we describe an automatic method that restores the fetal cardiac trace from fMCG recordings by means of a weighted summation of fetal components separated with independent component analysis (ICA) and identified through dedicated algorithms that analyse the frequency content and temporal structure of each source signal. Multichannel fMCG datasets of 66 healthy and 4 arrhythmic fetuses were used to validate the automatic method with respect to a classical procedure requiring the manual classification of fetal components by an expert investigator. ICA was run with input clusters of different dimensions to simulate various MCG systems. Detection rates, true negative and false positive component categorization, QRS amplitude, standard deviation and signal-to-noise ratio of reconstructed fetal signals, and real and per cent QRS differences between paired fetal traces retrieved automatically and manually were calculated to quantify the performances of the automatic method. Its robustness and reliability, particularly evident with the use of large input clusters, might increase the diagnostic role of fMCG during the prenatal period.

  17. Automatic memory management policies for low power, memory limited, and delay intolerant devices

    Science.gov (United States)

    Jahid, Md. Abu

    Mobile devices such as smartphones and tablets are energy and memory limited, and implement graphical user interfaces that are intolerant of computational delays. Mobile device platforms supporting apps implemented in languages that require automatic memory management, such as the Dalvik (Java) virtual machine within Google's Android, have become dominant. It is essential that automatic memory management avoid causing unacceptable interface delays while responsibly managing energy and memory resource usage. Dalvik's automatic memory management policies for heap growth and garbage collection scheduling utilize heuristics tuned to minimize memory footprint. These policies result in only marginally acceptable response times and garbage collection signicantly contributes to apps' CPU time and therefore energy consumption. The primary contributions of this research include a characterization of Dalvik's "baseline" automatic memory management policy, the development of a new "adaptive" policy, and an investigation of the performance of this policy. The investigation indicates that this adaptive policy consumes less CPU time and improves interactive performance at the cost of increasing memory footprint size by an acceptable amount.

  18. 食品链式自动分拣装置%Food Chain Automatic Sorting Device

    Institute of Scientific and Technical Information of China (English)

    姜鑫

    2016-01-01

    该文设计的种食品自动分拣装置集成了PLC、气动控制、传感与检测、变频控制等多种技术,能够自动完成对铝箔、纸质和塑料包装的三种食品进行自动分拣,整机机械结构采用链式传动装置,材料采用304食品级不锈钢,不仅卫生、方便,还能够高效的完成自动分拣过程、提高劳动生产率,具有一定推广价值.%In this paper, the design of food automatic sorting device integrated many technologies PLC, sensing and detection, frequency conversion control, can automatically complete the aluminum foil, paper and plastic packaging of food on the automatic sorting, the whole mechanical structure of the chain transmission device, food grade 304 stainless steel is adopted as material, not only has the advantages of sanitation, convenience, but also can efficiently complete automatic sorting process, improve labor productivity and has a certain populariza-tion value.

  19. Microporous device for local electric recordings on model lipid bilayers

    Science.gov (United States)

    Kaufeld, Theresa; Steinem, Claudia; Schmidt, Christoph F.

    2015-01-01

    A powerful approach for characterizing lipid membranes and embedded proteins is the reconstitution of model lipid bilayers. The extreme fragility of 5 nm thick bilayers is a challenge for device design and requires a trade off of stability against accessibility. We here present a microporous lab-on-chip device that allows us to form stable, solvent-free lipid bilayers from giant unilamellar vesicles (GUVs) in a geometry that provides a unique set of access possibilities. The device is constructed around a micro-fabricated silicon chip with clusters of 1 µm-diameter pores and provides optical access to the lipid bilayers for high-NA epifluorescence imaging. At the same time, solvent exchange is possible on both sides of the lipid bilayer. Complete coverage can be achieved with GUVs, so that voltages can be applied across the lipid bilayer and single-channel currents can be measured using external or integrated silver/silver chloride electrodes. We describe the micro-fabrication by standard cleanroom techniques and the characterization of the device by atomic force microscopy, scanning electron microscopy and impedance spectroscopy. In proof-of-concept experiments we demonstrate that the device is capable of low-noise, single-ion-channel recordings. Electronic Supplementary Information (ESI) available: See DOI: 10.1039/b000000x/

  20. Automatic illumination compensation device based on a photoelectrochemical biofuel cell driven by visible light

    Science.gov (United States)

    Yu, You; Han, Yanchao; Xu, Miao; Zhang, Lingling; Dong, Shaojun

    2016-04-01

    Inverted illumination compensation is important in energy-saving projects, artificial photosynthesis and some forms of agriculture, such as hydroponics. However, only a few illumination adjustments based on self-powered biodetectors that quantitatively detect the intensity of visible light have been reported. We constructed an automatic illumination compensation device based on a photoelectrochemical biofuel cell (PBFC) driven by visible light. The PBFC consisted of a glucose dehydrogenase modified bioanode and a p-type semiconductor cuprous oxide photocathode. The PBFC had a high power output of 161.4 μW cm-2 and an open circuit potential that responded rapidly to visible light. It adjusted the amount of illumination inversely irrespective of how the external illumination was changed. This rational design of utilizing PBFCs provides new insights into automatic light adjustable devices and may be of benefit to intelligent applications.Inverted illumination compensation is important in energy-saving projects, artificial photosynthesis and some forms of agriculture, such as hydroponics. However, only a few illumination adjustments based on self-powered biodetectors that quantitatively detect the intensity of visible light have been reported. We constructed an automatic illumination compensation device based on a photoelectrochemical biofuel cell (PBFC) driven by visible light. The PBFC consisted of a glucose dehydrogenase modified bioanode and a p-type semiconductor cuprous oxide photocathode. The PBFC had a high power output of 161.4 μW cm-2 and an open circuit potential that responded rapidly to visible light. It adjusted the amount of illumination inversely irrespective of how the external illumination was changed. This rational design of utilizing PBFCs provides new insights into automatic light adjustable devices and may be of benefit to intelligent applications. Electronic supplementary information (ESI) available. See DOI: 10.1039/c6nr00759g

  1. The application of charge-coupled device processors in automatic-control systems

    Science.gov (United States)

    Mcvey, E. S.; Parrish, E. A., Jr.

    1977-01-01

    The application of charge-coupled device (CCD) processors to automatic-control systems is suggested. CCD processors are a new form of semiconductor component with the unique ability to process sampled signals on an analog basis. Specific implementations of controllers are suggested for linear time-invariant, time-varying, and nonlinear systems. Typical processing time should be only a few microseconds. This form of technology may become competitive with microprocessors and minicomputers in addition to supplementing them.

  2. The application of charge-coupled device processors in automatic-control systems

    Science.gov (United States)

    Mcvey, E. S.; Parrish, E. A., Jr.

    1977-01-01

    The application of charge-coupled device (CCD) processors to automatic-control systems is suggested. CCD processors are a new form of semiconductor component with the unique ability to process sampled signals on an analog basis. Specific implementations of controllers are suggested for linear time-invariant, time-varying, and nonlinear systems. Typical processing time should be only a few microseconds. This form of technology may become competitive with microprocessors and minicomputers in addition to supplementing them.

  3. Particle image velocimetry for an automatic cooling device using temperature-sensitive magnetic fluid

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    An automatic cooling device has been developed by using a temperature-sensitive magnetic fluid as the coolant. A particle image velocimetry (PIV) system was used to measure the flow velocity of the fluid inside the loop. The efficiency of the device under varying conditions such as the heat load and the power of cooling were ex- perimentally investigated. The effect of cooperation between external magnetic field and thermal field on the performance of the device was studied. As expected, a continuous flow induced by the thermal and magnetic field was observed in the loop, where heat was transferred by the circulating magnetic fluid. The synergic effect between the magnetic field and the temperature gradient has impact on the performance of the device.

  4. Particle image velocimetry for an automatic cooling device using temperature-sensitive magnetic fluid

    Institute of Scientific and Technical Information of China (English)

    LIAN WenLei; LI Qiang; XUAN YiMin

    2008-01-01

    An automatic cooling device has been developed by using a temperature-sensitive magnetic fluid as the coolant. A particle image velocimetry (PIV) system was used to measure the flow velocity of the fluid inside the loop. The efficiency of the device under varying conditions such as the heat load and the power of cooling were ex-perimentally investigated. The effect of cooperation between external magnetic field and thermal field on the performance of the device was studied. As expected, a continuous flow induced by the thermal and magnetic field was observed in the loop, where heat was transferred by the circulating magnetic fluid. The synergic effect between the magnetic field and the temperature gradient has impact on the performance of the device.

  5. Development of an automatic measuring device for total sugar content in chlortetracycline fermenter based on STM32

    Science.gov (United States)

    Liu, Ruochen; Chen, Xiangguang; Yao, Minpu; Huang, Suyi; Ma, Deshou; Zhou, Biao

    2017-01-01

    Because fermented liquid in chlortetracycline fermenter has high viscosity and complex composition, conventional instruments can't directly measure its total sugar content of fermented liquid. At present, offline artificial sampling measurement is usually the way to measuring total sugar content in chlortetracycline Fermenter. it will take too much time and manpower to finish the measurement., and the results will bring the lag of control process. To realize automatic measurement of total sugar content in chlortetracycline fermenter, we developed an automatic measuring device for total sugar content based on STM32 microcomputer. It can not only realize the function of automatic sampling, filtering, measuring of fermented liquid and automatic washing of the device, but also can make the measuring results display in the field and finish data communication. The experiment results show that the automatic measuring device of total sugar content in chlortetracycline fermenter can meet the demand of practical application.

  6. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Science.gov (United States)

    2010-07-01

    ... distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents, Trademarks, and... Initial notice of distribution of digital audio recording devices or media. (a) General. This section..., any digital audio recording device or digital audio recording medium in the United States....

  7. Automatic identification and classification of muscle spasms in long-term EMG recordings.

    Science.gov (United States)

    Winslow, Jeffrey; Martinez, Adriana; Thomas, Christine K

    2015-03-01

    Spinal cord injured (SCI) individuals may be afflicted by spasticity, a condition in which involuntary muscle spasms are common. EMG recordings can be analyzed to quantify this symptom of spasticity but manual identification and classification of spasms are time consuming. Here, an algorithm was created to find and classify spasm events automatically within 24-h recordings of EMG. The algorithm used expert rules and time-frequency techniques to classify spasm events as tonic, unit, or clonus spasms. A companion graphical user interface (GUI) program was also built to verify and correct the results of the automatic algorithm or manually defined events. Eight channel EMG recordings were made from seven different SCI subjects. The algorithm was able to correctly identify an average (±SD) of 94.5 ± 3.6% spasm events and correctly classify 91.6 ± 1.9% of spasm events, with an accuracy of 61.7 ± 16.2%. The accuracy improved to 85.5 ± 5.9% and the false positive rate decreased to 7.1 ± 7.3%, respectively, if noise events between spasms were removed. On average, the algorithm was more than 11 times faster than manual analysis. Use of both the algorithm and the GUI program provide a powerful tool for characterizing muscle spasms in 24-h EMG recordings, information which is important for clinical management of spasticity.

  8. Smart-card-based automatic meal record system intervention tool for analysis using data mining approach.

    Science.gov (United States)

    Zenitani, Satoko; Nishiuchi, Hiromu; Kiuchi, Takahiro

    2010-04-01

    The Smart-card-based Automatic Meal Record system for company cafeterias (AutoMealRecord system) was recently developed and used to monitor employee eating habits. The system could be a unique nutrition assessment tool for automatically monitoring the meal purchases of all employees, although it only focuses on company cafeterias and has never been validated. Before starting an interventional study, we tested the reliability of the data collected by the system using the data mining approach. The AutoMealRecord data were examined to determine if it could predict current obesity. All data used in this study (n = 899) were collected by a major electric company based in Tokyo, which has been operating the AutoMealRecord system for several years. We analyzed dietary patterns by principal component analysis using data from the system and extracted 5 major dietary patterns: healthy, traditional Japanese, Chinese, Japanese noodles, and pasta. The ability to predict current body mass index (BMI) with dietary preference was assessed with multiple linear regression analyses, and in the current study, BMI was positively correlated with male gender, preference for "Japanese noodles," mean energy intake, protein content, and frequency of body measurement at a body measurement booth in the cafeteria. There was a negative correlation with age, dietary fiber, and lunchtime cafeteria use (R(2) = 0.22). This regression model predicted "would-be obese" participants (BMI >or= 23) with 68.8% accuracy by leave-one-out cross validation. This shows that there was sufficient predictability of BMI based on data from the AutoMealRecord System. We conclude that the AutoMealRecord system is valuable for further consideration as a health care intervention tool.

  9. Automatic Identification of Motion Artifacts in EHG Recording for Robust Analysis of Uterine Contractions

    Directory of Open Access Journals (Sweden)

    Yiyao Ye-Lin

    2014-01-01

    Full Text Available Electrohysterography (EHG is a noninvasive technique for monitoring uterine electrical activity. However, the presence of artifacts in the EHG signal may give rise to erroneous interpretations and make it difficult to extract useful information from these recordings. The aim of this work was to develop an automatic system of segmenting EHG recordings that distinguishes between uterine contractions and artifacts. Firstly, the segmentation is performed using an algorithm that generates the TOCO-like signal derived from the EHG and detects windows with significant changes in amplitude. After that, these segments are classified in two groups: artifacted and nonartifacted signals. To develop a classifier, a total of eleven spectral, temporal, and nonlinear features were calculated from EHG signal windows from 12 women in the first stage of labor that had previously been classified by experts. The combination of characteristics that led to the highest degree of accuracy in detecting artifacts was then determined. The results showed that it is possible to obtain automatic detection of motion artifacts in segmented EHG recordings with a precision of 92.2% using only seven features. The proposed algorithm and classifier together compose a useful tool for analyzing EHG signals and would help to promote clinical applications of this technique.

  10. Framework for automatic information extraction from research papers on nanocrystal devices

    Directory of Open Access Journals (Sweden)

    Thaer M. Dieb

    2015-09-01

    Full Text Available To support nanocrystal device development, we have been working on a computational framework to utilize information in research papers on nanocrystal devices. We developed an annotated corpus called “ NaDev” (Nanocrystal Device Development for this purpose. We also proposed an automatic information extraction system called “NaDevEx” (Nanocrystal Device Automatic Information Extraction Framework. NaDevEx aims at extracting information from research papers on nanocrystal devices using the NaDev corpus and machine-learning techniques. However, the characteristics of NaDevEx were not examined in detail. In this paper, we conduct system evaluation experiments for NaDevEx using the NaDev corpus. We discuss three main issues: system performance, compared with human annotators; the effect of paper type (synthesis or characterization on system performance; and the effects of domain knowledge features (e.g., a chemical named entity recognition system and list of names of physical quantities on system performance. We found that overall system performance was 89% in precision and 69% in recall. If we consider identification of terms that intersect with correct terms for the same information category as the correct identification, i.e., loose agreement (in many cases, we can find that appropriate head nouns such as temperature or pressure loosely match between two terms, the overall performance is 95% in precision and 74% in recall. The system performance is almost comparable with results of human annotators for information categories with rich domain knowledge information (source material. However, for other information categories, given the relatively large number of terms that exist only in one paper, recall of individual information categories is not high (39–73%; however, precision is better (75–97%. The average performance for synthesis papers is better than that for characterization papers because of the lack of training examples for

  11. Framework for automatic information extraction from research papers on nanocrystal devices.

    Science.gov (United States)

    Dieb, Thaer M; Yoshioka, Masaharu; Hara, Shinjiro; Newton, Marcus C

    2015-01-01

    To support nanocrystal device development, we have been working on a computational framework to utilize information in research papers on nanocrystal devices. We developed an annotated corpus called " NaDev" (Nanocrystal Device Development) for this purpose. We also proposed an automatic information extraction system called "NaDevEx" (Nanocrystal Device Automatic Information Extraction Framework). NaDevEx aims at extracting information from research papers on nanocrystal devices using the NaDev corpus and machine-learning techniques. However, the characteristics of NaDevEx were not examined in detail. In this paper, we conduct system evaluation experiments for NaDevEx using the NaDev corpus. We discuss three main issues: system performance, compared with human annotators; the effect of paper type (synthesis or characterization) on system performance; and the effects of domain knowledge features (e.g., a chemical named entity recognition system and list of names of physical quantities) on system performance. We found that overall system performance was 89% in precision and 69% in recall. If we consider identification of terms that intersect with correct terms for the same information category as the correct identification, i.e., loose agreement (in many cases, we can find that appropriate head nouns such as temperature or pressure loosely match between two terms), the overall performance is 95% in precision and 74% in recall. The system performance is almost comparable with results of human annotators for information categories with rich domain knowledge information (source material). However, for other information categories, given the relatively large number of terms that exist only in one paper, recall of individual information categories is not high (39-73%); however, precision is better (75-97%). The average performance for synthesis papers is better than that for characterization papers because of the lack of training examples for characterization papers

  12. Sleep-monitoring, experiment M133. [electronic recording system for automatic analysis of human sleep patterns

    Science.gov (United States)

    Frost, J. D., Jr.; Salamy, J. G.

    1973-01-01

    The Skylab sleep-monitoring experiment simulated the timelines and environment expected during a 56-day Skylab mission. Two crewmembers utilized the data acquisition and analysis hardware, and their sleep characteristics were studied in an online fashion during a number of all night recording sessions. Comparison of the results of online automatic analysis with those of postmission visual data analysis was favorable, confirming the feasibility of obtaining reliable objective information concerning sleep characteristics during the Skylab missions. One crewmember exhibited definite changes in certain sleep characteristics (e.g., increased sleep latency, increased time Awake during first third of night, and decreased total sleep time) during the mission.

  13. Reliability of an external loop recorder for automatic recognition and transtelephonic ECG transmission of atrial fibrillation.

    Science.gov (United States)

    Müller, Axel; Scharner, Wilfried; Borchardt, Tilo; Och, Wolfgang; Korb, Harald

    2009-01-01

    In order to test a newly developed algorithm for detecting atrial fibrillation in clinical practice, we carried out parallel recordings using a conventional 24-h electrocardiogram (ECG) monitor and telemonitoring with an external loop recorder. Recordings were made in 24 patients with persistent atrial fibrillation and in another 24 patients with sinus rhythm. Atrial fibrillation was detected immediately in 23 of 24 patients with persistent atrial fibrillation and 20 min after fitting the single-channel loop recorder in the 24th patient (sensitivity 100%). On average, 3.1 false positives (i.e. detection of an episode, including the end or beginning of atrial fibrillation) were transmitted per patient. The sensitivity of the algorithms for automatically detecting bradycardiac and tachycardiac atrial fibrillation was also high. In 12 of 24 patients with sinus rhythm, false-positive tele-ECGs were transmitted. These were caused by supraventricular or ventricular extrasystoles and by sinus arrhythmias or sinoatrial (SA) blocks. The external loop recorder was very effective at detecting paroxysmal atrial fibrillation. Possible indications for the clinical use of this recorder include, in addition to diagnosis, monitoring patients for atrial fibrillation recurrence after cardioversion or catheter ablation.

  14. Development of a doorframe-typed swinging seedling pick-up device for automatic field transplantation

    Energy Technology Data Exchange (ETDEWEB)

    Han, H.; Mao, H.; Hu, J.; Tian, K.

    2015-07-01

    A doorframe-typed swing seedling pick-up device for automatic field transplanters was developed and evaluated in a laboratory. The device, consisting of a path manipulator and two grippers, can move the pins slowly to extract seedlings from the tray cells and return quickly to the pick-up point for the next extraction. The path manipulator was constructed with the creative design of type-Ⅱ mechanism combination in series. It consists of an oscillating guide linkage mechanism and a grooved globoidal cam mechanism. The gripper is a pincette-type mechanism using the pick-up pins to penetrate into the root mass for seedling extraction. The dynamic analysis of the designed seedling pick-up device was simulated with ADAMS software. Being the first prototype, various performance tests under local production conditions were conducted to find out the optimal machine operation parameters and transplant production conditions. As the gripper with multiple fine pins was moved by the swing pick-up device, it can effectively complete the transplanting work cycle of extracting, transferring, and discharging a seedling. The laboratory evaluation showed that the pick-up device equipped with two grippers can extract 80 seedlings/min with a 90% success and a 3% failure in discharging seedlings, using 42-day-old tomato plantlets. The quality of extracting seedlings was satisfactory. (Author)

  15. Development of a doorframe-typed swinging seedling pick-up device for automatic field transplantation

    Directory of Open Access Journals (Sweden)

    Han Luhua

    2015-06-01

    Full Text Available A doorframe-typed swing seedling pick-up device for automatic field transplanters was developed and evaluated in a laboratory. The device, consisting of a path manipulator and two grippers, can move the pins slowly to extract seedlings from the tray cells and return quickly to the pick-up point for the next extraction. The path manipulator was constructed with the creative design of type-II mechanism combination in series. It consists of an oscillating guide linkage mechanism and a grooved globoidal cam mechanism. The gripper is a pincette-type mechanism using the pick-up pins to penetrate into the root mass for seedling extraction. The dynamic analysis of the designed seedling pick-up device was simulated with ADAMS software. Being the first prototype, various performance tests under local production conditions were conducted to find out the optimal machine operation parameters and transplant production conditions. As the gripper with multiple fine pins was moved by the swing pick-up device, it can effectively complete the transplanting work cycle of extracting, transferring, and discharging a seedling. The laboratory evaluation showed that the pick-up device equipped with two grippers can extract 80 seedlings/min with a 90% success and a 3% failure in discharging seedlings, using 42-day-old tomato plantlets. The quality of extracting seedlings was satisfactory.

  16. Redundant drive current imbalance problem of the Automatic Radiator Inspection Device (ARID)

    Science.gov (United States)

    Latino, Carl D.

    1992-09-01

    The Automatic Radiator Inspection Device (ARID) is a 4 Degree of Freedom (DOF) robot with redundant drive motors at each joint. The device is intended to automate the labor intensive task of space shuttle radiator inspection. For safety and redundancy, each joint is driven by two independent motor systems. Motors driving the same joint, however, draw vastly different currents. The concern was that the robot joints could be subjected to undue stress. It was the objective of this summer's project to determine the cause of this current imbalance. In addition it was to determine, in a quantitative manner, what was the cause, how serious the problem was in terms of damage or undue wear to the robot and find solutions if possible. It was concluded that most problems could be resolved with a better motor control design. This document discusses problems encountered and possible solutions.

  17. Inter-device reliability of an automatic-scoring actigraph for measuring sleep in healthy adults

    Directory of Open Access Journals (Sweden)

    Matthew Driller

    2016-07-01

    Full Text Available Actigraphy has become a common method of measuring sleep due to its non-invasive, cost-effective nature. An actigraph (Readiband™ that utilizes automatic scoring algorithms has been used in the research, but is yet to be evaluated for its inter-device reliability. A total of 77 nights of sleep data from 11 healthy adult participants was collected while participants were concomitantly wearing two Readiband™ actigraphs attached together (ACT1 and ACT2. Sleep indices including total sleep time (TST, sleep latency (SL, sleep efficiency (SE%, wake after sleep onset (WASO, total time in bed (TTB, wake episodes per night (WE, sleep onset variance (SOV and wake variance (WV were assessed between the two devices using mean differences, 95% levels of agreement, intraclass correlation coefficients (ICC, typical error of measurement (TEM and coefficient of variation (CV% analysis. There were no significant differences between devices for any of the measured sleep variables (p>0.05. TST, SE, SL, TTB, SOV and WV all resulted in very high ICC's (>0.90, with WASO and WE resulting in high ICC's between devices (0.85 and 0.80, respectively. Mean differences of −2.1 and 0.2 min for TST and SL were associated with a low TEM between devices (9.5 and 3.8 min, respectively. SE resulted in a 0.3% mean difference between devices. The Readiband™ is a reliable tool for researchers using multiple devices of this brand in sleep studies to assess basic measures of sleep quality and quantity in healthy adult populations.

  18. Automatic Threshold Determination for a Local Approach of Change Detection in Long-Term Signal Recordings

    Directory of Open Access Journals (Sweden)

    Khalil Mohamad

    2007-01-01

    Full Text Available CUSUM (cumulative sum is a well-known method that can be used to detect changes in a signal when the parameters of this signal are known. This paper presents an adaptation of the CUSUM-based change detection algorithms to long-term signal recordings where the various hypotheses contained in the signal are unknown. The starting point of the work was the dynamic cumulative sum (DCS algorithm, previously developed for application to long-term electromyography (EMG recordings. DCS has been improved in two ways. The first was a new procedure to estimate the distribution parameters to ensure the respect of the detectability property. The second was the definition of two separate, automatically determined thresholds. One of them (lower threshold acted to stop the estimation process, the other one (upper threshold was applied to the detection function. The automatic determination of the thresholds was based on the Kullback-Leibler distance which gives information about the distance between the detected segments (events. Tests on simulated data demonstrated the efficiency of these improvements of the DCS algorithm.

  19. Automatized system of precipitation monitoring and recording with use of radiolocation for urban areas

    Science.gov (United States)

    Voronov, Nikolai; Dikinis, Alexandr; Ivanov, Maxim

    2016-04-01

    One of the most important lines of work in the field of increasing the efficiency of functioning of urban water disposal systems is automation of precipitation recording with application of new technological tools for measuring precipitations fallout and forecast. The developed Automatized Information System for Atmospheric Precipitation Recording (AIS «Osadki») includes a network of automatic precipitation stations on the basis of use of the precipitation gauge OTT Pluvio2; a Doppler meteorological radar; software for collection of information about precipitations and control of work of the precipitation stations network; a specialized database that provides direct access to meteorological information and statistical estimation of precipitation distribution for urban conditions. The main advantage of the System is the use of a Doppler meteorological radar which, in combination with the measurement data of the station in the automated mode with a 5-minute interval allows to estimate both the distribution of precipitations on the urban territory their intensity. As the result, it allows to drastically increase the speed of processing of hydrometeorological information and the efficiency of using it for the needs of urban services. This article was prepared within the framework of the Federal Targeted Programme for Research and Development in Priority Areas of Development of the Russian Scientific and Technological Complex for 2014-2020 (agreement № 14.574.21.0088).

  20. Automatic Identification of Artifact-Related Independent Components for Artifact Removal in EEG Recordings.

    Science.gov (United States)

    Zou, Yuan; Nathan, Viswam; Jafari, Roozbeh

    2016-01-01

    Electroencephalography (EEG) is the recording of electrical activity produced by the firing of neurons within the brain. These activities can be decoded by signal processing techniques. However, EEG recordings are always contaminated with artifacts which hinder the decoding process. Therefore, identifying and removing artifacts is an important step. Researchers often clean EEG recordings with assistance from independent component analysis (ICA), since it can decompose EEG recordings into a number of artifact-related and event-related potential (ERP)-related independent components. However, existing ICA-based artifact identification strategies mostly restrict themselves to a subset of artifacts, e.g., identifying eye movement artifacts only, and have not been shown to reliably identify artifacts caused by nonbiological origins like high-impedance electrodes. In this paper, we propose an automatic algorithm for the identification of general artifacts. The proposed algorithm consists of two parts: 1) an event-related feature-based clustering algorithm used to identify artifacts which have physiological origins; and 2) the electrode-scalp impedance information employed for identifying nonbiological artifacts. The results on EEG data collected from ten subjects show that our algorithm can effectively detect, separate, and remove both physiological and nonbiological artifacts. Qualitative evaluation of the reconstructed EEG signals demonstrates that our proposed method can effectively enhance the signal quality, especially the quality of ERPs, even for those that barely display ERPs in the raw EEG. The performance results also show that our proposed method can effectively identify artifacts and subsequently enhance the classification accuracies compared to four commonly used automatic artifact removal methods.

  1. Performance of an implantable automatic atrial fibrillation detection device: impact of software adjustments and relevance of manual episode analysis.

    Science.gov (United States)

    Eitel, Charlotte; Husser, Daniela; Hindricks, Gerhard; Frühauf, Manuela; Hilbert, Sebastian; Arya, Arash; Gaspar, Thomas; Wetzel, Ulrike; Bollmann, Andreas; Piorkowski, Christopher

    2011-04-01

    Implantable loop recorders (ILRs) with specific atrial fibrillation (AF) detection algorithms (ILR-AF) have been developed for continuous AF monitoring. We sought to analyse the clinical value of a new AF monitoring device and to compare it to serial 7-day Holter. Sixty-four consecutive patients suffering from paroxysmal AF were included in this prospective analysis and received an ILR-AF. Manual electrogram analysis was performed for each automatically detected episode and each was categorized into one of three possible diagnoses: 'no AF', 'definite AF', and 'possible AF' (non-diagnostic). Analysis was performed separately before and after a software upgrade that was introduced during the course of the study. A subgroup of patients (51 of 64) underwent AF catheter ablation with subsequent serial 7-day Holter in comparison with the ILR-AF. A total of 333 interrogations were performed (203 before and 130 after software upgrade). The number of patients with AF misdetection was significantly reduced from 72 to 44% following the software upgrade (P = 0.001). The number of patients with non-diagnostic interrogations went from 38 to 16% (P = 0.001). Compared with serial 7-day Holter, the ILR-AF had a tendency to detect a higher number of patients with AF recurrences (31 vs. 24%; P = 0.125). The rate of AF detection on ILR-AF may be higher compared with standard AF monitoring. However, false-positive AF recordings hamper the clinical value. Developments in device technology and device handling are necessary to minimize non-diagnostic interrogations.

  2. Automatic classification of long-term ambulatory ECG records according to type of ischemic heart disease

    Directory of Open Access Journals (Sweden)

    Smrdel Aleš

    2011-12-01

    Full Text Available Abstract Background Elevated transient ischemic ST segment episodes in the ambulatory electrocardiographic (AECG records appear generally in patients with transmural ischemia (e. g. Prinzmetal's angina while depressed ischemic episodes appear in patients with subendocardial ischemia (e. g. unstable or stable angina. Huge amount of AECG data necessitates automatic methods for analysis. We present an algorithm which determines type of transient ischemic episodes in the leads of records (elevations/depressions and classifies AECG records according to type of ischemic heart disease (Prinzmetal's angina; coronary artery diseases excluding patients with Prinzmetal's angina; other heart diseases. Methods The algorithm was developed using 24-hour AECG records of the Long Term ST Database (LTST DB. The algorithm robustly generates ST segment level function in each AECG lead of the records, and tracks time varying non-ischemic ST segment changes such as slow drifts and axis shifts to construct the ST segment reference function. The ST segment reference function is then subtracted from the ST segment level function to obtain the ST segment deviation function. Using the third statistical moment of the histogram of the ST segment deviation function, the algorithm determines deflections of leads according to type of ischemic episodes present (elevations, depressions, and then classifies records according to type of ischemic heart disease. Results Using 74 records of the LTST DB (containing elevated or depressed ischemic episodes, mixed ischemic episodes, or no episodes, the algorithm correctly determined deflections of the majority of the leads of the records and correctly classified majority of the records with Prinzmetal's angina into the Prinzmetal's angina category (7 out of 8; majority of the records with other coronary artery diseases into the coronary artery diseases excluding patients with Prinzmetal's angina category (47 out of 55; and correctly

  3. Automatic de-identification of French clinical records: comparison of rule-based and machine-learning approaches.

    Science.gov (United States)

    Grouin, Cyril; Zweigenbaum, Pierre

    2013-01-01

    In this paper, we present a comparison of two approaches to automatically de-identify medical records written in French: a rule-based system and a machine-learning based system using a conditional random fields (CRF) formalism. Both systems have been designed to process nine identifiers in a corpus of medical records in cardiology. We performed two evaluations: first, on 62 documents in cardiology, and on 10 documents in foetopathology - produced by optical character recognition (OCR) - to evaluate the robustness of our systems. We achieved a 0.843 (rule-based) and 0.883 (machine-learning) exact match overall F-measure in cardiology. While the rule-based system allowed us to achieve good results on nominative (first and last names) and numerical data (dates, phone numbers, and zip codes), the machine-learning approach performed best on more complex categories (postal addresses, hospital names, medical devices, and towns). On the foetopathology corpus, although our systems have not been designed for this corpus and despite OCR character recognition errors, we obtained promising results: a 0.681 (rule-based) and 0.638 (machine-learning) exact-match overall F-measure. This demonstrates that existing tools can be applied to process new documents of lower quality.

  4. Automatic health record review to help prioritize gravely ill Social Security disability applicants.

    Science.gov (United States)

    Abbott, Kenneth; Ho, Yen-Yi; Erickson, Jennifer

    2017-07-01

    Every year, thousands of patients die waiting for disability benefits from the Social Security Administration. Some qualify for expedited service under the Compassionate Allowance (CAL) initiative, but CAL software focuses exclusively on information from a single form field. This paper describes the development of a supplemental process for identifying some overlooked but gravely ill applicants, through automatic annotation of health records accompanying new claims. We explore improved prioritization instead of fully autonomous claims approval. We developed a sample of claims containing medical records at the moment of arrival in a single office. A series of tools annotated both patient records and public Web page descriptions of CAL medical conditions. We trained random forests to identify CAL patients and validated each model with 10-fold cross validation. Our main model, a general CAL classifier, had an area under the receiver operating characteristic curve of 0.915. Combining this classifier with existing software improved sensitivity from 0.960 to 0.994, detecting every deceased patient, but reducing positive predictive value to 0.216. True positive CAL identification is a priority, given CAL patient mortality. Mere prioritization of the false positives would not create a meaningful burden in terms of manual review. Death certificate data suggest the presence of truly ill patients among putative false positives. To a limited extent, it is possible to identify gravely ill Social Security disability applicants by analyzing annotations of unstructured electronic health records, and the level of identification is sufficient to be useful in prioritizing case reviews.

  5. Automatic prediction of rheumatoid arthritis disease activity from the electronic medical records.

    Directory of Open Access Journals (Sweden)

    Chen Lin

    Full Text Available OBJECTIVE: We aimed to mine the data in the Electronic Medical Record to automatically discover patients' Rheumatoid Arthritis disease activity at discrete rheumatology clinic visits. We cast the problem as a document classification task where the feature space includes concepts from the clinical narrative and lab values as stored in the Electronic Medical Record. MATERIALS AND METHODS: The Training Set consisted of 2792 clinical notes and associated lab values. Test Set 1 included 1749 clinical notes and associated lab values. Test Set 2 included 344 clinical notes for which there were no associated lab values. The Apache clinical Text Analysis and Knowledge Extraction System was used to analyze the text and transform it into informative features to be combined with relevant lab values. RESULTS: Experiments over a range of machine learning algorithms and features were conducted. The best performing combination was linear kernel Support Vector Machines with Unified Medical Language System Concept Unique Identifier features with feature selection and lab values. The Area Under the Receiver Operating Characteristic Curve (AUC is 0.831 (σ = 0.0317, statistically significant as compared to two baselines (AUC = 0.758, σ = 0.0291. Algorithms demonstrated superior performance on cases clinically defined as extreme categories of disease activity (Remission and High compared to those defined as intermediate categories (Moderate and Low and included laboratory data on inflammatory markers. CONCLUSION: Automatic Rheumatoid Arthritis disease activity discovery from Electronic Medical Record data is a learnable task approximating human performance. As a result, this approach might have several research applications, such as the identification of patients for genome-wide pharmacogenetic studies that require large sample sizes with precise definitions of disease activity and response to therapies.

  6. Veal calves’ clinical/health status in large groups fed with automatic feeding devices

    Directory of Open Access Journals (Sweden)

    Giulio Cozzi

    2010-01-01

    Full Text Available Aim of the current study was to evaluate the clinical/health status of veal calves in 3 farms that adopt large group housing and automatic feeding stations in Italy. Visits were scheduled in three phases of the rearing cycle (early, middle, and end. Results showed a high incidence of coughing, skin infection and bloated rumen particularly in the middle phase while cross-sucking signs were present at the early stage when calves’ nibbling proclivity is still high. Throughout the rearing cycle, the frequency of bursitis increased reaching 53% of calves at the end. The percentage of calves with a poorer body condition than the mid-range of the batch raised gradually as well, likely due to the non-proportioned teat/calves ratio that increases competition for feed and reduces milk intake of the low ranking animals. The remarked growth differences among pen-mates and the mortality rate close to 7% showed by the use of automatic feeding devices for milk delivery seem not compensating the lower labour demand, therefore its sustainability at the present status is doubtful both for the veal calves’ welfare and the farm incomes.

  7. Developing an intelligent control system of automatic window motor with diverse wireless sensor network devices

    Indian Academy of Sciences (India)

    Yao-Chiang Kan; Hsueh-Chun Lin; Wen-Pei Sung

    2014-08-01

    This invention system involves hardware, firmware and software to develop an intelligent control system of automatic window motor with diverse wireless sensor network (WSN) devices for health and environmental monitoring. The parts of this invention are improved by implementing the WSN mote into environmental sensors that may detect temperature, humility, toxic gas, smog or aerosol, etc. With embedded system design, these sensors are capable of delivering WSN signal packets based on ZigBee protocol that follows the IEEE 802.14.4 standards. The primary hardware of the system is the window motor with circuit design by integrating micro control unit (MCU), radio frequency (RF) and WSN antenna to receive command. The firmware developed under embedded system can bridge hardware and software to control the window at the specified position. At the back end, the control system software can manage diverse sensor data and provide the interface for remote monitoring.

  8. System for measurement and automatic regulation of gas flow within an oil aging test device

    Directory of Open Access Journals (Sweden)

    Žigić Aleksandar

    2014-01-01

    Full Text Available This paper describes a system within an oil aging test device that serves for measurement and automatic regulation of gas flow. Following an already realized system that continuously monitors, logs, and regulates transformer oil temperature during the aging process and maintains temperature consistency within strict limits, a model of a flow meter and regulator of air or oxygen through transformer oil samples is developed. A special feature of the implemented system is the measurement of very small gas flows. A short technical description of the realized system is given with a functional block diagram. The basic technical characteristics of the system are specified, and the operating principles and application of the system are described. The paper also gives performance test results in a real exploitation environment.

  9. Poster Abstract: Automatic Calibration of Device Attitude in Inertial Measurement Unit Based Traffic Probe Vehicles

    KAUST Repository

    Mousa, Mustafa

    2016-04-28

    Probe vehicles consist in mobile traffic sensor networks that evolve with the flow of vehicles, transmitting velocity and position measurements along their path, generated using GPSs. To address the urban positioning issues of GPSs, we propose to replace them with inertial measurement units onboard vehicles, to estimate vehicle location and attitude using inertial data only. While promising, this technology requires one to carefully calibrate the orientation of the device inside the vehicle to be able to process the acceleration and rate gyro data. In this article, we propose a scheme that can perform this calibration automatically by leveraging the kinematic constraints of ground vehicles, and that can be implemented on low-end computational platforms. Preliminary testing shows that the proposed scheme enables one to accurately estimate the actual accelerations and rotation rates in the vehicle coordinates. © 2016 IEEE.

  10. Computer-aided recording of automatic endoscope washing and disinfection processes as an integral part of medical documentation for quality assurance purposes

    Directory of Open Access Journals (Sweden)

    Klein Stefanie

    2010-07-01

    Full Text Available Abstract Background The reprocessing of medical endoscopes is carried out using automatic cleaning and disinfection machines. The documentation and archiving of records of properly conducted reprocessing procedures is the last and increasingly important part of the reprocessing cycle for flexible endoscopes. Methods This report describes a new computer program designed to monitor and document the automatic reprocessing of flexible endoscopes and accessories in fully automatic washer-disinfectors; it does not contain nor compensate the manual cleaning step. The program implements national standards for the monitoring of hygiene in flexible endoscopes and the guidelines for the reprocessing of medical products. No FDA approval has been obtained up to now. The advantages of this newly developed computer program are firstly that it simplifies the documentation procedures of medical endoscopes and that it could be used universally with any washer-disinfector and that it is independent of the various interfaces and software products provided by the individual suppliers of washer-disinfectors. Results The computer program presented here has been tested on a total of four washer-disinfectors in more than 6000 medical examinations within 9 months. Conclusions We present for the first time an electronic documentation system for automated washer-disinfectors for medical devices e.g. flexible endoscopes which can be used on any washer-disinfectors that documents the procedures involved in the automatic cleaning process and can be easily connected to most hospital documentation systems.

  11. Audio Recording Device Data for Assessing Avian Detectability, Seward Peninsula, Alaska, 2013-2014

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set contains information from recording devices that were set to record regularly during summer breeding seasons. A single observer listened to 2692...

  12. Penetrógrafo eletrônico automático Automatic electronic recording penetrometer

    Directory of Open Access Journals (Sweden)

    Aloísio Bianchini

    2002-01-01

    Full Text Available O presente trabalho relata o desenvolvimento de um penetrógrafo, construído para operar de forma automática, executando um ensaio de penetração com um simples toque no botão de partida. Ele possui incorporado, um sistema dedicado de aquisição de dados, que pode armazenar até 187 ensaios e uma interface de comunicação, dispensando a conexão ao microcomputador ou "datalogger". As condições do ensaio como, por exemplo, data, localização (latitude e longitude e profundidade, podem ser atualizadas, assim como a aferição da célula de carga, via teclado com mostrador de duas linhas. Verificou-se variação de velocidade This paper presents the development of an automatic recording penetrometer, which operates at the touch of a button. It incorporates a data acquisition system, which can store data of 187 tests and has a serial PC interface. The test characterization such as dates, location (latitude and longitude can be recorded as well. The maximum working depth may be set and the load cell calibration can be verified through a keyboard with 2 lines display. A speed variation error of < 5% compared to ASAE standard was verified for cone indices between 500 and 5,684 kPa. The equipment is compact, easy to handle and can realize one test every minute.

  13. Controller Design and Analysis of Spacecraft Automatic Levelling and Equalizing Hoist Device based on Hanging Point Adjustment

    Directory of Open Access Journals (Sweden)

    Tang Laiying

    2016-01-01

    Full Text Available Spacecraft Automatic Levelling and Equalizing Hoist Device (SALEHD is a kind of hoisting device developed for eccentric spacecraft level-adjusting, based on hanging point adjustment by utilizing XY-workbench. To make the device automatically adjust the spacecraft to be levelling, the controller for SALEHD was designed in this paper. Through geometry and mechanics analysis for SALEHD and the spacecraft, the mathematical model of the controller is established. And then, the link of adaptive control and the link of variable structure control were added into the controller to adapt the unknown parameter and eliminate the interference of support vehicle. The stability of the controller was analysed, through constructing Lyapunov energy function. It was proved that the controller system is asymptotically stable, and converged to origin that is equilibrium point. So the controller can be applied in SALEHD availably and safely.

  14. HyPR Device: Mobile Support for Hybrid Patient Records

    DEFF Research Database (Denmark)

    Houben, Steven; Frost, Mads; Bardram, Jakob E

    2014-01-01

    The patient record is one of the central artifacts in medical work that is used to organize, communicate and coordinate important information related to patient care. In many hospitals a double record consisting of an electronic and paper part is maintained. This practice introduces a number...

  15. Monitoring drip water isotope and element variability: A new device for automatic drip water collection

    Science.gov (United States)

    Breitenbach, S. F. M.; Gilbert, M.-J.; Kwiecien, O.; Seifert, R.; Fleitmann, D.

    2012-04-01

    Understanding cave drip water elemental and stable isotope composition (δD and δ18O) are vital for interpreting climate proxy records derived from stalagmites as palaeoclimate archives. Delineating the temporal changes in drip water chemistry to climatic and environmental fluctuations (such as rainfall amount, degassing, bioactivity etc.) is even more important if calibration is attempted between climatic parameters and stalagmite proxy records. Monitoring of remote study sites has often been limited by the ability to regularly and manually collect drip water samples over an extended period of time. One important complication to be considered for stable isotope analysis is that sampling vials must be closed air-tight, in order to avoid post-sampling evaporation of the sampled water. To overcome these limitations we developed an automated and programmable sampling device that can collect 12 ml of drip water at pre-defined time intervals. A total of 49 samples can be collected in a turret over a period of up to one year. The device is powered by widely available C-cell batteries and works in cave environments with positive air temperature. The autosampler has been installed and tested in Waldheim Cave, Switzerland, where we collected water at 24h intervals. We present preliminary data for the winter period December 2011 to March 2012.

  16. Automatized system of precipitation monitoring and recording with use of radiolocation for urban areas

    Science.gov (United States)

    Voronov, Nikolai; Ivanov, Maxim

    2017-04-01

    One of the most important lines of work in the field of increasing the efficiency of functioning of urban water disposal systems is automatization of precipitation recording with application of new technological tools for measuring precipitations fallout and forecast. In 2016, the Russian State Hydrometeorological University (RSHU) carried out an experimental investigation of the developed Automatized Information System for Atmospheric Precipitation Recording (AIS «Osadki»), in the course of which estimation of the quality of forecast of daily amount of atmospheric precipitations in Saint Petersburg. In the process of the experimental research, agreement of the indications of the precipitation gauge Pluvio2 installed on the experimental site (Saint Petersburg, Belyi island), the data obtained from Federal Hydrometeorological Service (FHS - Rosgidromet) and prognostic data obtained as a result of work of the numerical mesoscale model WRF was estimated. The initial data for forecast were: - data from the external global meteorological model GFS (Global Forecast System) or NCEP (National Centers for Environmental Prediction) in the GRIB2 format; - data about hydrometeorological parameters from the stations of the Rosgidromet network that are located directly in the area of modelling in the GRIB2 format; - data about the radial velocity and radar reflectivity of a Doppler meteorological radar in the LITTLER format. Sets of daily precipitation amounts for the period from 1 May 2016 to 22 June 2016 obtained from FHS, the precipitation gauge Pluvio2 and the WRF model were analyzed. As the result of the analysis, the following numerical characteristics were obtained: Mean value: FHS - 4.3849, Model - 1.99, Pluvio2 - 2.63; Mean-square deviation (σ): FHS - 9.99, Model - 5.99, Pluvio2 - 6.58; Variation coefficient (V): FHS - 2.27, Model - 3.00, Pluvio2 - 2.49; Minimum (min): FHS - 0, Model - 0, Pluvio2- 0; Maximum (max): FHS - 49.00, Model - 40.76, Pluvio2 - 42.76. The

  17. An automatic recording system for the study of escape from fear in rats.

    Science.gov (United States)

    Li, Ming; He, Wei

    2013-11-01

    Escape from fear (EFF) is an active response to a conditioned stimulus (CS) previously paired with an unconditioned fearful stimulus (US), which typically leads to the termination of the CS. In this paradigm, animals acquire two distinct associations: S-S [CS-US] and R-O [response-outcome] through Pavlovian and instrumental conditioning, respectively. The present study describes a computer controlled automatic recording system that captures the development of EFF and allows the determination of the respective roles of S-S and R-O associations in this process. We validated this system by showing that only rats subjected to a simultaneous CS-US conditioning (i.e., CS and US occur together at the beginning of each trial) acquired EFF, not those subjected to an unpaired CS-US conditioning. Paired rats had a progressively increased number of EFF and significantly shorter escape latencies than unpaired rats across the 5-trial blocks on the test day. However, during the conditioning phase, the unpaired rats emitted more 22kHz ultrasonic vocalizations, a validated measure of conditioned reactive fear responses. Our results demonstrate that the acquisition of EFF is contingent upon pairing of the CS with the US, not simply the consequence of a high level of generalized fear. Because this commercially available system is capable of examining both conditioned active and reactive fear responses in a single setup, it could be used to determine the relative roles of S-S and R-O associations in EFF, the neurobiology of conditioned active fear response and neuropharmacology of psychotherapeutic drugs.

  18. 容积法体积管自动检定装置%Volumetric method volume tube automatic calibration device

    Institute of Scientific and Technical Information of China (English)

    周兵

    2014-01-01

    Using standard metal gauge, four-way commutator, PC, PLC as the main hardware, Kingview software development platform, The building Volumetric method volume tube automatic calibration device. According to the verification regulation requirements, To control the flow valve, Device automatically read standard gauge of metal volume value, The automatic temperature and pressure values collected, Automatically calculate the volume tube basic volume, standard error, repeatability, accuracy and repeatability. Realize the visual operation interface, save the test data, print calibration certificate, the notice of verification results, etc.%利用标准金属量器、四通换向器、计算机、PLC 为主要硬件,组态王软件为开发平台,构建容积法体积管自动检定装置。根据检定规程要求,控制流量阀,装置自动读取标准金属量器的容积值、自动采集温度、压力值,自动计算出体积管基本体积、标准误差、重复性、准确度、复现性。实现可视的操作界面、保存检定数据、打印检定证书、检定结果通知书等功能。

  19. Automatic BSS-based filtering of metallic interference in MEG recordings: definition and validation using simulated signals

    Science.gov (United States)

    Migliorelli, Carolina; Alonso, Joan F.; Romero, Sergio; Mañanas, Miguel A.; Nowak, Rafał; Russi, Antonio

    2015-08-01

    Objective. One of the principal drawbacks of magnetoencephalography (MEG) is its high sensitivity to metallic artifacts, which come from implanted intracranial electrodes and dental ferromagnetic prosthesis and produce a high distortion that masks cerebral activity. The aim of this study was to develop an automatic algorithm based on blind source separation (BSS) techniques to remove metallic artifacts from MEG signals. Approach. Three methods were evaluated: AMUSE, a second-order technique; and INFOMAX and FastICA, both based on high-order statistics. Simulated signals consisting of real artifact-free data mixed with real metallic artifacts were generated to objectively evaluate the effectiveness of BSS and the subsequent interference reduction. A completely automatic detection of metallic-related components was proposed, exploiting the known characteristics of the metallic interference: regularity and low frequency content. Main results. The automatic procedure was applied to the simulated datasets and the three methods exhibited different performances. Results indicated that AMUSE preserved and consequently recovered more brain activity than INFOMAX and FastICA. Normalized mean squared error for AMUSE decomposition remained below 2%, allowing an effective removal of artifactual components. Significance. To date, the performance of automatic artifact reduction has not been evaluated in MEG recordings. The proposed methodology is based on an automatic algorithm that provides an effective interference removal. This approach can be applied to any MEG dataset affected by metallic artifacts as a processing step, allowing further analysis of unusable or poor quality data.

  20. A Full Automatic Device for Sampling Small Solution Volumes in Photometric Titration Procedure Based on Multicommuted Flow System

    Science.gov (United States)

    Borges, Sivanildo S.; Vieira, Gláucia P.; Reis, Boaventura F.

    2007-01-01

    In this work, an automatic device to deliver titrant solution into a titration chamber with the ability to determine the dispensed volume of solution, with good precision independent of both elapsed time and flow rate, is proposed. A glass tube maintained at the vertical position was employed as a container for the titrant solution. Electronic devices were coupled to the glass tube in order to control its filling with titrant solution, as well as the stepwise solution delivering into the titration chamber. The detection of the titration end point was performed employing a photometer designed using a green LED (λ=545 nm) and a phototransistor. The titration flow system comprised three-way solenoid valves, which were assembled to allow that the steps comprising the solution container loading and the titration run were carried out automatically. The device for the solution volume determination was designed employing an infrared LED (λ=930 nm) and a photodiode. When solution volume delivered from proposed device was within the range of 5 to 105 μl, a linear relationship (R = 0.999) between the delivered volumes and the generated potential difference was achieved. The usefulness of the proposed device was proved performing photometric titration of hydrochloric acid solution with a standardized sodium hydroxide solution and using phenolphthalein as an external indicator. The achieved results presented relative standard deviation of 1.5%. PMID:18317510

  1. An algorithm used for quality criterion automatic measurement of band-pass filters and its device implementation

    Science.gov (United States)

    Liu, Qianshun; Liu, Yan; Yu, Feihong

    2013-08-01

    As a kind of film device, band-pass filter is widely used in pattern recognition, infrared detection, optical fiber communication, etc. In this paper, an algorithm for automatic measurement of band-pass filter quality criterion is proposed based on the proven theory calculation of derivate spectral transmittance of filter formula. Firstly, wavelet transform to reduce spectrum data noises is used. Secondly, combining with the Gaussian curve fitting and least squares method, the algorithm fits spectrum curve and searches the peak. Finally, some parameters for judging band-pass filter quality are figure out. Based on the algorithm, a pipeline for band-pass filters automatic measurement system has been designed that can scan the filter array automatically and display spectral transmittance of each filter. At the same time, the system compares the measuring result with the user defined standards to determine if the filter is qualified or not. The qualified product will be market with green color, and the unqualified product will be marked with red color. With the experiments verification, the automatic measurement system basically realized comprehensive, accurate and rapid measurement of band-pass filter quality and achieved the expected results.

  2. Photoresponsive carbohydrate-based giant surfactants: automatic vertical alignment of nematic liquid crystal for the remote-controllable optical device.

    Science.gov (United States)

    Kim, Dae-Yoon; Lee, Sang-A; Kang, Dong-Gue; Park, Minwook; Choi, Yu-Jin; Jeong, Kwang-Un

    2015-03-25

    Photoresponsive carbohydrate-based giant surfactants (abbreviated as CELAnD-OH) were specifically designed and synthesized for the automatic vertical alignment (VA) layer of nematic (N) liquid crystal (LC), which can be applied for the fabrication of remote-controllable optical devices. Without the conventional polymer-based LC alignment process, a perfect VA layer was automatically constructed by directly adding the 0.1 wt % CELA1D-OH in the N-LC media. The programmed CELA1D-OH giant surfactants in the N-LC media gradually diffused onto the substrates of LC cell and self-assembled to the expanded monolayer structure, which can provide enough empty spaces for N-LC molecules to crawl into the empty zones for the construction of VA layer. On the other hand, the CELA3D-OH giant surfactants forming the condensed monolayer structure on the substrates exhibited a planar alignment (PA) rather than a VA. Upon tuning the wavelength of light, the N-LC alignments were reversibly switched between VA and PA in the remote-controllable LC optical devices. Based on the experimental results, it was realized that understanding the interactions between N-LC molecules and amphiphilic giant surfactants is critical to design the suitable materials for the automatic LC alignment.

  3. Comparative Analysis of Music Recordings from Western and Non-Western traditions by Automatic Tonal Feature Extraction

    Directory of Open Access Journals (Sweden)

    Emilia Gómez

    2008-09-01

    Full Text Available The automatic analysis of large musical corpora by means of computational models overcomes some limitations of manual analysis, and the unavailability of scores for most existing music makes necessary to work with audio recordings. Until now, research on this area has focused on music from the Western tradition. Nevertheless, we might ask if the available methods are suitable when analyzing music from other cultures. We present an empirical approach to the comparative analysis of audio recordings, focusing on tonal features and data mining techniques. Tonal features are related to the pitch class distribution, pitch range and employed scale, gamut and tuning system. We provide our initial but promising results obtained when trying to automatically distinguish music from Western and non- Western traditions; we analyze which descriptors are most relevant and study their distribution over 1500 pieces from different traditions and styles. As a result, some feature distributions differ for Western and non-Western music, and the obtained classification accuracy is higher than 80% for different classification algorithms and an independent test set. These results show that automatic description of audio signals together with data mining techniques provide means to characterize huge music collections from different traditions and complement musicological manual analyses.

  4. Blind source computer device identification from recorded VoIP calls for forensic investigation.

    Science.gov (United States)

    Jahanirad, Mehdi; Anuar, Nor Badrul; Wahab, Ainuddin Wahid Abdul

    2017-03-01

    The VoIP services provide fertile ground for criminal activity, thus identifying the transmitting computer devices from recorded VoIP call may help the forensic investigator to reveal useful information. It also proves the authenticity of the call recording submitted to the court as evidence. This paper extended the previous study on the use of recorded VoIP call for blind source computer device identification. Although initial results were promising but theoretical reasoning for this is yet to be found. The study suggested computing entropy of mel-frequency cepstrum coefficients (entropy-MFCC) from near-silent segments as an intrinsic feature set that captures the device response function due to the tolerances in the electronic components of individual computer devices. By applying the supervised learning techniques of naïve Bayesian, linear logistic regression, neural networks and support vector machines to the entropy-MFCC features, state-of-the-art identification accuracy of near 99.9% has been achieved on different sets of computer devices for both call recording and microphone recording scenarios. Furthermore, unsupervised learning techniques, including simple k-means, expectation-maximization and density-based spatial clustering of applications with noise (DBSCAN) provided promising results for call recording dataset by assigning the majority of instances to their correct clusters. Copyright © 2017 Elsevier Ireland Ltd. All rights reserved.

  5. Configurable automatic detection and registration of fiducial frames for device-to-image registration in MRI-guided prostate interventions.

    Science.gov (United States)

    Tokuda, Junichi; Song, Sang-Eun; Tuncali, Kemal; Tempany, Clare; Hata, Nobuhiko

    2013-01-01

    We propose a novel automatic fiducial frame detection and registration method for device-to-image registration in MRI-guided prostate interventions. The proposed method does not require any manual selection of markers, and can be applied to a variety of fiducial frames, which consist of multiple cylindrical MR-visible markers placed in different orientations. The key idea is that automatic extraction of linear features using a line filter is more robust than that of bright spots by thresholding; by applying a line set registration algorithm to the detected markers, the frame can be registered to the MRI. The method was capable of registering the fiducial frame to the MRI with an accuracy of 1.00 +/- 0.73 mm and 1.41 +/- 1.06 degrees in a phantom study, and was sufficiently robust to detect the fiducial frame in 98% of images acquired in clinical cases despite the existence of anatomical structures in the field of view.

  6. An automatic device for the quality control of large-scale crystal's production

    CERN Document Server

    Baccaro, S; Castellani, M; Cecilia, A; Dafinei, I; Diemoz, M; Guerra, S; Longo, E; Montecchi, M; Organtini, G; Pellegrini, F

    2001-01-01

    In 1999, the construction of the electromagnetic calorimeter of the Compact Muon Solenoid (CMS) experiment started. Half of the barrel calorimeter made of 61200 lead tungstate (PWO) crystals will be assembled and tested in the Regional Centre of INFN-ENEA in Rome, Italy. Before assembling, all 30600 PWO crystals will be qualified for scintillation and radiation hardness characteristics by a specially built Automatic Crystal Control System. The measuring techniques for crystal qualification and performances of the automatic system will be discussed in this work. (11 refs).

  7. Matching Automatic Gain Control Across Devices in Bimodal Cochlear Implant Users

    NARCIS (Netherlands)

    Veugen, L.C.E.; Chalupper, J.; Snik, A.F.M.; Opstal, A.J. van; Mens, L.H.M.

    2016-01-01

    OBJECTIVES: The purpose of this study was to improve bimodal benefit in listeners using a cochlear implant (CI) and a hearing aid (HA) in contralateral ears, by matching the time constants and the number of compression channels of the automatic gain control (AGC) of the HA to the CI. Equivalent AGC

  8. Vocal Anuran Community Monitoring with Automatic Recording Devices at Swanquarter National Wildlife Refuge: Summary Report 2014

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — During 2014, the Southeast Region Inventory and Monitoring Branch conducted the first vocal anuran monitoring at Swanquarter National Wildlife Refuge. The...

  9. Vocal Anuran Community Monitoring with Automatic Recording Devices at Mattamuskeet National Wildlife Refuge Summary Report 2015

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — During 2015, the Southeast Region Inventory and Monitoring Branch conducted the first-ever, pilot vocal anuran monitoring project at Mattamuskeet National Wildlife...

  10. Comparison of Efficacy and Tolerance of Automatic Continuous Positive Airway Pressure Devices With the Optimum Continuous Positive Airway Pressure.

    Science.gov (United States)

    Tommi, George; Aronow, Wilbert S; Sheehan, John C; McCleay, Matthew T; Meyers, Patrick G

    Patients diagnosed with obstructive sleep apnea syndrome were randomly placed on automatic continuous positive airway pressure (ACPAP) for 2 hours followed by manual titration for the rest of the night. One hundred sixty-one patients entered the study, with at least 50 patients titrated with each of 3 ACPAP devices. The optimum continuous positive airway pressure (CPAP) was defined as the lowest pressure with an apnea-hypoxia index of ≤5/hr, which ranged from 4 cm to 18 cm. Success with ACPAP was approximately 60%-80% when the optimum CPAP was 4-6 cm but fell to below 30% if the optimum CPAP was ≥8 cm (P = 0.001). Average ACPAP ranged from 2 to 10 cm below the optimum level if the optimum CPAP was ≥8 cm. Patients who responded to a low CPAP but deteriorated on higher pressures failed to respond to any of the automatic devices. We recommend that CPAP titration be performed manually before initiation of ACPAP in patients with obstructive sleep apnea. The basal pressure for ACPAP should be the optimum pressure obtained by manual titration. Limits on the upper level of ACPAP may be necessary for patients who deteriorate on higher positive pressures.

  11. [Automation in histology: evaluation of a device for automatic covering of histologic slides].

    Science.gov (United States)

    Lampertico, P; Gambacorta, M

    1994-02-01

    A new kind of instrument (Tissue-Tek Coverslipper) has been utilized by the Department of Surgical Pathology Cà Granda Hospital, Milano, for automatic mounting of cytohistological slides, using a pluristratified plastic film, instead of usual coverglasses. The introduction of this coverslipper has reduced the answer time, the technical work and the ambiental pollution. This coverslipper seems to be reliable, useful and very speedy; the optical quality of the slides was similar to conventional ones in our experience.

  12. Medical device integration: CIOs must bridge the digital divide between devices and electronic medical records.

    Science.gov (United States)

    Raths, David

    2009-02-01

    To get funding approved for medical device integration, ClOs suggest focusing on specific patient safety or staff efficiency pain points. Organizations that make clinical engineering part of their IT team report fewer chain-of-command issues. It also helps IT people understand the clinical goals because the engineering people have been working closely with clinicians for years. A new organization has formed to work on collaboration between clinical engineers and IT professionals. For more information, go to www.ceitcollaboration.org. ECRI Institute has written a guide to handling the convergence of medical technology and hospital networks. Its "Medical Technology for the IT Professional: An Essential Guide for Working in Today's Healthcare Setting" also details how IT professionals can assist hospital technology planning and acquisition, and provide ongoing support for IT-based medical technologies. For more information, visit www.ecri.org/ITresource.

  13. Use of low-cost video recording device in reflective practice in cataract surgery.

    Science.gov (United States)

    Bhogal, Maninder M; Angunawela, Romesh I; Little, Brian C

    2010-04-01

    Reflective surgical practice is invaluable for surgeons at all levels of experience. For trainees in particular, every surgical opportunity must be optimized for its learning potential. Recording and reviewing cataract surgery is an invaluable tool. We describe a video recording device that has the advantages of ease of use; low cost; portability; and ease of review, editing, and dissemination, all of which encourage regular use and reflective surgical practice. Copyright (c) 2010 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.

  14. Automatic spike sorting for extracellular electrophysiological recording using unsupervised single linkage clustering based on grey relational analysis

    Science.gov (United States)

    Lai, Hsin-Yi; Chen, You-Yin; Lin, Sheng-Huang; Lo, Yu-Chun; Tsang, Siny; Chen, Shin-Yuan; Zhao, Wan-Ting; Chao, Wen-Hung; Chang, Yao-Chuan; Wu, Robby; Shih, Yen-Yu I.; Tsai, Sheng-Tsung; Jaw, Fu-Shan

    2011-06-01

    Automatic spike sorting is a prerequisite for neuroscience research on multichannel extracellular recordings of neuronal activity. A novel spike sorting framework, combining efficient feature extraction and an unsupervised clustering method, is described here. Wavelet transform (WT) is adopted to extract features from each detected spike, and the Kolmogorov-Smirnov test (KS test) is utilized to select discriminative wavelet coefficients from the extracted features. Next, an unsupervised single linkage clustering method based on grey relational analysis (GSLC) is applied for spike clustering. The GSLC uses the grey relational grade as the similarity measure, instead of the Euclidean distance for distance calculation; the number of clusters is automatically determined by the elbow criterion in the threshold-cumulative distribution. Four simulated data sets with four noise levels and electrophysiological data recorded from the subthalamic nucleus of eight patients with Parkinson's disease during deep brain stimulation surgery are used to evaluate the performance of GSLC. Feature extraction results from the use of WT with the KS test indicate a reduced number of feature coefficients, as well as good noise rejection, despite similar spike waveforms. Accordingly, the use of GSLC for spike sorting achieves high classification accuracy in all simulated data sets. Moreover, J-measure results in the electrophysiological data indicating that the quality of spike sorting is adequate with the use of GSLC.

  15. Automatic classification of a taxon-rich community recorded in the wild.

    Science.gov (United States)

    Potamitis, Ilyas

    2014-01-01

    There is a rich literature on automatic species identification of a specific target taxon as regards various vocalizing animals. Research usually is restricted to specific species--in most cases a single one. It is only very recently that the number of monitored species has started to increase for certain habitats involving birds. Automatic acoustic monitoring has not yet been proven to be generic enough to scale to other taxa and habitats than the ones described in the original research. Although attracting much attention, the acoustic monitoring procedure is neither well established yet nor universally adopted as a biodiversity monitoring tool. Recently, the multi-instance multi-label framework on bird vocalizations has been introduced to face the obstacle of simultaneously vocalizing birds of different species. We build on this framework to integrate novel, image-based heterogeneous features designed to capture different aspects of the spectrum. We applied our approach to a taxon-rich habitat that included 78 birds, 8 insect species and 1 amphibian. This dataset constituted the Multi-label Bird Species Classification Challenge-NIPS 2013 where the proposed approach achieved an average accuracy of 91.25% on unseen data.

  16. Development of automatic knob-generation tool for the protection devices in the LHC

    CERN Document Server

    Koulouris, Aimilianos

    2013-01-01

    In the LHC transfer lines, the beam is extremely well controlled and confined. This is managed through a wide variety of superconducting magnets, which focus, defocus and bend the beam. As for the control part, there are numerous monitoring devices co-operating with the SCADA systems, all working for the protection of the instruments and the people. Our work, in particular, falls under the beam transfer lines, TI2 and TI8, between the SPS and the LHC. The protection devices in the transfer lines need to be set up according to the optics of the beam, namely the trajectory inside the beam-pipe. This means that, depending on the trajectory of the beam inside the beam-pipe and the positioning of the protection devices around the beam-pipe, certain adjustments need to be made, so that the beam will not damage or even affect the monitoring devices.

  17. Foreign technology alert-bibliography: Photography and recording devices. Citations from the NTIS data base

    Science.gov (United States)

    Wilkinson, G.

    1982-11-01

    A systematically organized collection of abstracts from a bibliographic data base is provided on reports relating to photographic, imaging and recording systems originating from countries outside the USA. A tailored search of the data base was performed and the output carefully categorized, edited and indexed. Subjects covered include: photographic devices and imaging systems (cameras, image carriers, holography and applications); audiovisual recording (digital, magnetic and video); date encoding, recording and storage; and satellite equipment. Each of the sections in the book is cross-referenced and there is also an author index and useful subject index based on major descriptors.

  18. An automatic detector of drowsiness based on spectral analysis and wavelet decomposition of EEG records.

    Science.gov (United States)

    Garces Correa, Agustina; Laciar Leber, Eric

    2010-01-01

    An algorithm to detect automatically drowsiness episodes has been developed. It uses only one EEG channel to differentiate the stages of alertness and drowsiness. In this work the vectors features are building combining Power Spectral Density (PDS) and Wavelet Transform (WT). The feature extracted from the PSD of EEG signal are: Central frequency, the First Quartile Frequency, the Maximum Frequency, the Total Energy of the Spectrum, the Power of Theta and Alpha bands. In the Wavelet Domain, it was computed the number of Zero Crossing and the integrated from the scale 3, 4 and 5 of Daubechies 2 order WT. The classifying of epochs is being done with neural networks. The detection results obtained with this technique are 86.5 % for drowsiness stages and 81.7% for alertness segment. Those results show that the features extracted and the classifier are able to identify drowsiness EEG segments.

  19. A novel automatic method for monitoring Tourette motor tics through a wearable device.

    Science.gov (United States)

    Bernabei, Michel; Preatoni, Ezio; Mendez, Martin; Piccini, Luca; Porta, Mauro; Andreoni, Giuseppe

    2010-09-15

    The aim of this study was to propose a novel automatic method for quantifying motor-tics caused by the Tourette Syndrome (TS). In this preliminary report, the feasibility of the monitoring process was tested over a series of standard clinical trials in a population of 12 subjects affected by TS. A wearable instrument with an embedded three-axial accelerometer was used to detect and classify motor tics during standing and walking activities. An algorithm was devised to analyze acceleration data by: eliminating noise; detecting peaks connected to pathological events; and classifying intensity and frequency of motor tics into quantitative scores. These indexes were compared with the video-based ones provided by expert clinicians, which were taken as the gold-standard. Sensitivity, specificity, and accuracy of tic detection were estimated, and an agreement analysis was performed through the least square regression and the Bland-Altman test. The tic recognition algorithm showed sensitivity = 80.8% ± 8.5% (mean ± SD), specificity = 75.8% ± 17.3%, and accuracy = 80.5% ± 12.2%. The agreement study showed that automatic detection tended to overestimate the number of tics occurred. Although, it appeared this may be a systematic error due to the different recognition principles of the wearable and video-based systems. Furthermore, there was substantial concurrency with the gold-standard in estimating the severity indexes. The proposed methodology gave promising performances in terms of automatic motor-tics detection and classification in a standard clinical context. The system may provide physicians with a quantitative aid for TS assessment. Further developments will focus on the extension of its application to everyday long-term monitoring out of clinical environments.

  20. Automatic Detection of Childhood Absence Epilepsy Seizures: Toward a Monitoring Device

    DEFF Research Database (Denmark)

    Duun-Henriksen, Jonas; Madsen, Rasmus E.; Remvig, Line S.;

    2012-01-01

    long-term prognoses, balancing antiepileptic effects and side effects. The electroencephalographic appearance of paroxysms in childhood absence epilepsy is fairly homogeneous, making it feasible to develop patient-independent automatic detection. We implemented a state-of-the-art algorithm...... to investigate the performance of paroxysm detection. Using only a single scalp electroencephalogram channel from 20 patients with a total of 125 paroxysms >2 seconds, 97.2% of paroxysms could be detected with no false detections. This result leads us to recommend further investigations of tiny, one......-channel electroencephalogram systems in an ambulatory setting....

  1. A Kinect-based system for automatic recording of some pigeon behaviors.

    Science.gov (United States)

    Lyons, Damian M; MacDonall, James S; Cunningham, Kelly M

    2015-12-01

    Contact switches and touch screens are the state of the art for recording pigeons' pecking behavior. Recording other behavior, however, requires a different sensor for each behavior, and some behaviors cannot easily be recorded. We present a flexible and inexpensive image-based approach to detecting and counting pigeon behaviors that is based on the Kinect sensor from Microsoft. Although the system is as easy to set up and use as the standard approaches, it is more flexible because it can record behaviors in addition to key pecking. In this article, we show how both the fast, fine motion of key pecking and the gross body activity of feeding can be measured. Five pigeons were trained to peck at a lighted contact switch, a pigeon key, to obtain food reward. The timing of the pecks and the food reward signals were recorded in a log file using standard equipment. The Kinect-based system, called BehaviorWatch, also measured the pecking and feeding behavior and generated a different log file. For key pecking, BehaviorWatch had an average sensitivity of 95% and a precision of 91%, which were very similar to the pecking measurements from the standard equipment. For detecting feeding activity, BehaviorWatch had a sensitivity of 95% and a precision of 97%. These results allow us to demonstrate that an advantage of the Kinect-based approach is that it can also be reliably used to measure activity other than key pecking.

  2. Automatic device for measuring biomechanical properties of cadaveric lumbar vertebrae of the human spine

    Science.gov (United States)

    Bartoněk, Luděk.; Janák, Vladislav; Keprt, Jiří

    2016-12-01

    A new special second-generation computer-controlled device has been developed for measuring biomechanical characteristics of the lower part of the spine vertebras L1-L5 [1]. During straining and measurement of the rigidity of the sample as a whole it is also necessary to observe the movement of individual parts of the sample and to measure their mechanical resistances. The measurement of displacement and rotation of individual parts of the studied model was evaluated by optical methods based on the principle of moiré interferometry and fast Fourier transform [2]. During this device development and its verification the lumbar samples were replaced with a system of wooden rollers with system discrete rubber pads. The new computer-controlled device containing four stepper motors, four strain gauges and two CCD cameras.

  3. Machine learning for automatic prediction of the quality of electrophysiological recordings.

    Directory of Open Access Journals (Sweden)

    Thomas Nowotny

    Full Text Available The quality of electrophysiological recordings varies a lot due to technical and biological variability and neuroscientists inevitably have to select "good" recordings for further analyses. This procedure is time-consuming and prone to selection biases. Here, we investigate replacing human decisions by a machine learning approach. We define 16 features, such as spike height and width, select the most informative ones using a wrapper method and train a classifier to reproduce the judgement of one of our expert electrophysiologists. Generalisation performance is then assessed on unseen data, classified by the same or by another expert. We observe that the learning machine can be equally, if not more, consistent in its judgements as individual experts amongst each other. Best performance is achieved for a limited number of informative features; the optimal feature set being different from one data set to another. With 80-90% of correct judgements, the performance of the system is very promising within the data sets of each expert but judgments are less reliable when it is used across sets of recordings from different experts. We conclude that the proposed approach is relevant to the selection of electrophysiological recordings, provided parameters are adjusted to different types of experiments and to individual experimenters.

  4. An automatic attenuator device for x-ray detectors at high counting rate

    Science.gov (United States)

    Alvarez, J.; Paiser, E.; Capitan, M. J.

    2002-07-01

    In this article we describe an attenuator device for reducing/controlling the pulse detector counting losses at a high counting rate. The electronics are based on a direct measure of the detector dead time from the analog output signal at the end of the detection chain. Taking into account this parameter the attenuator device decides to reduce/enhance the number of photons that arrive at the detector by inserting/extracting the necessary number of attenuation foils in the x-ray beam path. In that way the number of events in the incoming signal are reduced and the "apparent dynamic range" of the detector is increased.

  5. Reliability of recordings of subgingival calculus detected using an ultrasonic device.

    Science.gov (United States)

    Corraini, Priscila; López, Rodrigo

    2015-04-01

    To assess the intra-examiner reliability of recordings of subgingival calculus detected using an ultrasonic device, and to investigate the influence of subject-, tooth- and site-level factors on the reliability of these subgingival calculus recordings. On two occasions, within a 1-week interval, 147 adult periodontitis patients received a full-mouth clinical periodontal examination by a single trained examiner. Duplicate subgingival calculus recordings, in six sites per tooth, were obtained using an ultrasonic device for calculus detection and removal. Agreement was observed in 65 % of the 22,584 duplicate subgingival calculus recordings, ranging 45 % to 83 % according to subject. Using hierarchical modeling, disagreements in the subgingival calculus duplicate recordings were more likely in all other sites than the mid-buccal, and in sites harboring supragingival calculus. Disagreements were less likely in sites with PD ≥  4 mm and with furcation involvement  ≥  degree 2. Bleeding on probing or suppuration did not influence the reliability of subgingival calculus. At the subject-level, disagreements were less likely in patients presenting with the highest and lowest extent categories of the covariate subgingival calculus. The reliability of subgingival calculus recordings using the ultrasound technology is reasonable. The results of the present study suggest that the reliability of subgingival calculus recordings is not influenced by the presence of inflammation. Moreover, subgingival calculus can be more reliably detected using the ultrasound device at sites with higher need for periodontal therapy, i.e., sites presenting with deep pockets and premolars and molars with furcation involvement.

  6. Template-based automatic recognition of birdsong syllables from continuous recordings.

    Science.gov (United States)

    Anderson, S E; Dave, A S; Margoliash, D

    1996-08-01

    The application of dynamic time warping (DTW) to the automated analysis of continuous recordings of animal vocalizations is evaluated. The DTW algorithm compares an input signal with a set of predefined templates representative of categories chosen by the investigator. It directly compares signal spectrograms, and identifies constituents and constituent boundaries, thus permitting the identification of a broad range of signals and signal components. When applied to vocalizations of an indigo bunting (Passerina cyanea) and a zebra finch (Taeniopygia guttata) collected from a low-clutter, low-noise environment, the recognizer identifies syllables in stereotyped songs and calls with greater than 97% accuracy. Syllables of the more variable and lower amplitude indigo bunting plastic song are identified with approximately 84% accuracy. Under restricted recordings conditions, this technique apparently has general applicability to analysis of a variety of animal vocalizations and can dramatically decrease the amount of time spent on manual identification of vocalizations.

  7. Automatic estimation of aquifer parameters using long-term water supply pumping and injection records

    Science.gov (United States)

    Luo, Ning; Illman, Walter A.

    2016-09-01

    Analyses are presented of long-term hydrographs perturbed by variable pumping/injection events in a confined aquifer at a municipal water-supply well field in the Region of Waterloo, Ontario (Canada). Such records are typically not considered for aquifer test analysis. Here, the water-level variations are fingerprinted to pumping/injection rate changes using the Theis model implemented in the WELLS code coupled with PEST. Analyses of these records yield a set of transmissivity ( T) and storativity ( S) estimates between each monitoring and production borehole. These individual estimates are found to poorly predict water-level variations at nearby monitoring boreholes not used in the calibration effort. On the other hand, the geometric means of the individual T and S estimates are similar to those obtained from previous pumping tests conducted at the same site and adequately predict water-level variations in other boreholes. The analyses reveal that long-term municipal water-level records are amenable to analyses using a simple analytical solution to estimate aquifer parameters. However, uniform parameters estimated with analytical solutions should be considered as first rough estimates. More accurate hydraulic parameters should be obtained by calibrating a three-dimensional numerical model that rigorously captures the complexities of the site with these data.

  8. Automatically identification of Equatorial Spread-F on ionograms recorded in the Brazilian Equatorial region

    Science.gov (United States)

    Pillat, V. G.; Fagundes, P. R.; Guimarães, L. N. F.

    2016-12-01

    The most interesting equatorial ionospheric phenomena are the F-region large-scale irregularities and the equatorial ionization anomaly (EIA). F-region large-scale irregularity is a night-time phenomenon and its signature is multiples echoes recorded on ionograms, usually called Spread-F. These irregularities are generated in the bottom side of the equatorial F-region. Whereas the irregularity gets high altitude they end up extending to lower latitudes and usually drift eastward. With advancement of digital ionosonde, it is now possible to carry out an ionospheric sounding with a 5 minutes cadence or even with 1-minute cadence. To understand season and solar cycle Spread-F variation in several stations it is necessary deal with a large number of ionograms. Therefore, more sophisticated analysis tools are needed. Thus, development of algorithms to identify and analyse different aspects of ionograms have become very important to ionospheric physics researchers. The main objective of this paper is to present the performance of a computational tool, called UDIDA-scaling. This tool is based on fuzzy relation, in the identification of Spread-F on ionograms recorded in the Brazilian Equatorial sector (Manaus (2.9° S, 60.0° W, dip latitude 6.4° S) and Palmas (10.2° S, 48.2° W, dip latitude 5.5° S)), during a geomagnetic disturbed and a quiet period.

  9. Mimics: a symbolic conflict/cooperation simulation program, with embedded protocol recording and automatic psychometric assessment.

    Science.gov (United States)

    Aidman, Eugene V; Shmelyov, Alexander G

    2002-02-01

    This paper describes an interactive software environment designed as a social interaction simulator with embedded comprehensive recording and flexible assessment facilities. Using schematized visual sketches similar to cross-cultural facial universals (Ekman, 1999), Mimics (Shmelyov & Aidman, 1997) employs a computer-game-like scenario that requires the subject to identify with an avatar and navigate it through a playing field inhabited by hosts who display a range of facial expressions. From these expressions (which are highly consequential), the player has to anticipate the hosts' reactions to the avatar (which may vary from friendly to obstructing or aggressive) and choose between negotiating with a host (by altering the avatar's facial expression), attacking it, or searching for an escape route. Comprehensive recording of player moves and interactions has enabled computation of several finegrained indices of interactive behavior, such as aggressive response styles, efficiency, and motivation in conflict/cooperation contexts. Initial validation data and potential applications of the method in the assessment of personality and social behavior are discussed.

  10. Quantitative assessment of spatial sound distortion by the semi-ideal recording point of a hear-through device

    DEFF Research Database (Denmark)

    Hoffmann, Pablo F.; Christensen, Flemming; Hammershøi, Dorte

    2013-01-01

    to the ear canal as the ideal recording point – i.e. all directional properties of the incident sound field are recorded without distortion - it is critical for such device to be sufficiently small so that it can be completely inserted into the ear canal. This is not always feasible and the device may...

  11. Quantitative assessment of spatial sound distortion by the semi-ideal recording point of a hear-through device

    DEFF Research Database (Denmark)

    Hoffmann, Pablo F.; Christensen, Flemming; Hammershøi, Dorte

    2013-01-01

    to the ear canal as the ideal recording point—i.e., all directional properties of the incident sound field are recorded without distortion—it is critical for such device to be sufficiently small so that it can be completely inserted into the ear canal. This is not always feasible and the device may stretch...

  12. 10 CFR 34.67 - Records of leak testing of sealed sources and devices containing depleted uranium.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Records of leak testing of sealed sources and devices containing depleted uranium. 34.67 Section 34.67 Energy NUCLEAR REGULATORY COMMISSION LICENSES FOR INDUSTRIAL... Requirements § 34.67 Records of leak testing of sealed sources and devices containing depleted uranium....

  13. Point-of-View Recording Devices for Intraoperative Neurosurgical Video Capture.

    Science.gov (United States)

    Porras, Jose L; Khalid, Syed; Root, Brandon K; Khan, Imad S; Singer, Robert J

    2016-01-01

    The ability to record and stream neurosurgery is an unprecedented opportunity to further research, medical education, and quality improvement. Here, we appraise the ease of implementation of existing point-of-view devices when capturing and sharing procedures from the neurosurgical operating room and detail their potential utility in this context. Our neurosurgical team tested and critically evaluated features of the Google Glass and Panasonic HX-A500 cameras, including ergonomics, media quality, and media sharing in both the operating theater and the angiography suite. Existing devices boast several features that facilitate live recording and streaming of neurosurgical procedures. Given that their primary application is not intended for the surgical environment, we identified a number of concrete, yet improvable, limitations. The present study suggests that neurosurgical video capture and live streaming represents an opportunity to contribute to research, education, and quality improvement. Despite this promise, shortcomings render existing devices impractical for serious consideration. We describe the features that future recording platforms should possess to improve upon existing technology.

  14. Point-of-View Recording Devices for Intraoperative Neurosurgical Video Capture

    Directory of Open Access Journals (Sweden)

    Jose Luis Porras

    2016-10-01

    Full Text Available AbstractIntroduction: The ability to record and stream neurosurgery is an unprecedented opportunity to further research, medical education, and quality improvement. Here, we appraise the ease of implementation of existing POV devices when capturing and sharing procedures from the neurosurgical operating room, and detail their potential utility in this context.Methods: Our neurosurgical team tested and critically evaluated features of the Google Glass and Panasonic HX-A500 cameras including ergonomics, media quality, and media sharing in both the operating theater and the angiography suite.Results: Existing devices boast several features that facilitate live recording and streaming of neurosurgical procedures. Given that their primary application is not intended for the surgical environment, we identified a number of concrete, yet improvable, limitations.Conclusion: The present study suggests that neurosurgical video capture and live streaming represents an opportunity to contribute to research, education, and quality improvement. Despite this promise, shortcomings render existing devices impractical for serious consideration. We describe the features that future recording platforms should possess to improve upon existing technology.

  15. Solar Automatic Tracking Device Research and Development%太阳光自动跟踪装置的研发

    Institute of Scientific and Technical Information of China (English)

    王锋; 张忠远

    2011-01-01

    The Mitsubishi FX2N-48 programmable controller is taken as the control core, and vinylon touch screen as an interface, the all-weather solar automatic tracking device is designed. The sunlight automatic tracking device design scheme, structure characteristics, working process and energy saving application prospect are introduced, and the sunlight coordinate model, and the mechanical drive mechanism are established. The test control mode, the system hardware of the photoelectric detection circuit, an PLC control circuit, keyboard and display circuit design method are expounded. The software part adopts the modular design, and the data processing and control process design are given. Experimental results show that, the system uses the unique design of sun tracking device, tracking controller and a transmission actuator. In sunny weather, all-weather solar panels to perpendicular to the sun, gready improve the solar panels generating capacity.%设计制作一种以三菱FX2N-48可编程控制器作为控制核心,以维纶触摸屏作为界面控制的全天候太阳光自动跟踪装置.介绍了太阳光自动跟踪装置的总体设计方案、结构特点、工作过程及节能应用前景,建立了太阳光坐标模型,设计了系统的机械传动机构;阐述了控制系统的有关检测控制方式,给出了系统硬件的光电检测电路、PLC控制电路、键盘与显示电路设计方法;软件部分采用模块化设计,给出了数据处理及控制流程设计思路.样机实验结果表明,系统采用独特设计的太阳光跟踪定性装置、跟踪控制器及传动执行机构,在有阳光的天气时,全天候使太阳能电池板垂直于太阳,大大提高了太阳能电地板的发电量.

  16. A Novel Image-Guided, Automatic, High-Intensity Neurostimulation Device for the Treatment of Nonspecific Low Back Pain

    Directory of Open Access Journals (Sweden)

    Miguel Gorenberg

    2011-01-01

    Full Text Available Purpose. The current pilot study investigates the effectiveness of a novel device in the management of chronic low back pain (LBP. This device is able to automatically measure skin impedance in a selected body area and, immediately afterwards, to stimulate multiple points that are targeted according to differentiation in their electrical properties (peripheral nerve ends—milinated A δ fibers with high-intensity electrical stimulation. Materials and Methods. Nineteen outpatients were included in the study, 15 females (79% and 4 men (21%, mean age 52.1±10.8 years, all diagnosed with nonspecific chronic LBP. The protocol consisted of 6 treatment sessions, 2–4 days apart. Each session included a <1 minute automatic impedance screening, followed by a 20-minute treatment of lowest impedance points according to proprietary algorithms. Outcome Measures. The primary outcome measure consisted of changes in pain intensity as measured on a 100 mm pain visual analogue scale (VAS obtained at enrollment, before and 2 hours after each treatment. Secondary outcome measures were the Oswestry Disability Index (ODI and lumbar flexion range of motion (ROM obtained at baseline and each week during treatment. Results. The mean±SD baseline VAS score for all participants was 61±14. There were no significant changes in VAS scores between enrollment and before the first treatment (55±16; P=.102. During treatment, VAS scores decreased significantly compared with baseline scores by 39±17 mm (P<.001. Notably, VAS scores of all the patients, except for one, decreased by more than 20 mm after the fourth treatment, thus showing marked improvement in 95% of enrolled patients. ODI decreased throughout the entire treatment period, with significant changes from baseline already at the first week (P=.001. Lumbar flexion ROM showed a mean increase of 2.1 cm during treatment, but was not statistically significant. Conclusion. The results of the current pilot study

  17. Device for automatic driving of an mining combine in relation to the open interface of 2 solid media

    Energy Technology Data Exchange (ETDEWEB)

    Zombek, O.I.; Nosulya, Ye.P.; Pavlov, Yu.S.; Shcherbina, V.I.

    1982-01-01

    A device is proposed for automatic driving of a mining combine in relation to the open interface of 2 solid media which include electric hydraulic distributors of lifting and lowering the actuating mechanism, electrodes with mechanism for their compression and hydraulic engine of the caterpillar course. In order to improve accuracy by guaranteeing the possibility of pressing the electrodes to the wall in the shaft with constant force, the mechanism of compression of the electrode is made in the form of 2 hydraulic winches whose piston cavities are interconnected and are connected through the valve of sequence input of the hydraulic motor of the caterpillar course. The interconnected rod cavities of the hydraulic winches are connected to the outlet of the hydraulic motor of the caterpillar course, while the electrodes are installed on the ends of the hydraulic winch rods. The electrical outlets of the electrodes are connected through the contacts of the corresponding relay to the electric hydraulic distributors of lifting and lowering the actuating mechanism. In order to guarantee the necessary accuracy of installing the electrodes on the interface of the 2 solid media, the hydraulic winches are movable over the height in relation to each other. Use of the proposed device in the national economy makes it possible to reduce the loss of minerals which appears because of deviation of the combine into the side rock; to replace the not very effective manual labor of the personnel servicing the mining combine for making shafts in a vertical plane; to increase the content of mineral, sylvinite by reducing the working out of the mineral. In addition to the obtained additional quantity of mineral by increasing the rates of drilling, the proposed device makes it possible to reduce outlays for enrichment.

  18. Automatic Indexing for Content Analysis of Whale Recordings and XML Representation

    Directory of Open Access Journals (Sweden)

    Hervé Glotin

    2010-01-01

    Full Text Available This paper focuses on the robust indexing of sperm whale hydrophone recordings based on a set of features extracted from a real-time passive underwater acoustic tracking algorithm for multiple whales using four hydrophones. Acoustic localization permits the study of whale behavior in deep water without interfering with the environment. Given the position coordinates, we are able to generate different features such as the speed, energy of the clicks, Inter-Click-Interval (ICI, and so on. These features allow to construct different markers which allow us to index and structure the audio files. Thus, the behavior study is facilitated by choosing and accessing the corresponding index in the audio file. The complete indexing algorithm is processed on real data from the NUWC (Naval Undersea Warfare Center of the US Navy and the AUTEC (Atlantic Undersea Test & Evaluation Center-Bahamas. Our model is validated by similar results from the US Navy (NUWC and SOEST (School of Ocean and Earth Science and Technology Hawaii university labs in a single whale case. Finally, as an illustration, we index a single whale sound file using the extracted whale's features provided by the tracking, and we present an example of an XML script structuring it.

  19. Automatic Indexing for Content Analysis of Whale Recordings and XML Representation

    Directory of Open Access Journals (Sweden)

    Bénard Frédéric

    2010-01-01

    Full Text Available Abstract This paper focuses on the robust indexing of sperm whale hydrophone recordings based on a set of features extracted from a real-time passive underwater acoustic tracking algorithm for multiple whales using four hydrophones. Acoustic localization permits the study of whale behavior in deep water without interfering with the environment. Given the position coordinates, we are able to generate different features such as the speed, energy of the clicks, Inter-Click-Interval (ICI, and so on. These features allow to construct different markers which allow us to index and structure the audio files. Thus, the behavior study is facilitated by choosing and accessing the corresponding index in the audio file. The complete indexing algorithm is processed on real data from the NUWC (Naval Undersea Warfare Center of the US Navy and the AUTEC (Atlantic Undersea Test & Evaluation Center-Bahamas. Our model is validated by similar results from the US Navy (NUWC and SOEST (School of Ocean and Earth Science and Technology Hawaii university labs in a single whale case. Finally, as an illustration, we index a single whale sound file using the extracted whale's features provided by the tracking, and we present an example of an XML script structuring it.

  20. Target and peripheral dose during patient repositioning with the Gamma Knife automatic positioning system (APS) device.

    Science.gov (United States)

    Tran, Tuan-Anh; Stanley, Thomas R; Malhotra, Harish K; De Boer, Steven F; Prasad, Dheerendra; Podgorsak, Matthew B

    2010-01-28

    The GammaPlan treatment planning system does not account for the leakage and scatter dose during APS repositioning. In this study, the dose delivered to the target site and its periphery from the defocus stage and intershot couch transit (couch motion from the focus to defocus position and back) associated with APS repositioning are measured for the Gamma Knife model 4C. A stereotactic head-frame was attached to a Leksell 16 cm diameter spherical phantom with a calibrated ion chamber at its center. Using a fiducial box, CT images of the phantom were acquired and registered in the GammaPlan treatment planning system to determine the coordinates of the target (center of the phantom). An absorbed dose of 10 Gy to the 50% isodose line was prescribed to the target site for all measurements. Plans were generated for the 8, 14 and 18 mm collimator helmets to determine the relationship of measured dose to the number of repositions of the APS system and to the helmet size. The target coordinate was identical throughout entire study and there was no movement of the APS between various shots. This allowed for measurement of intershot transit dose at the target site and its periphery. The couch was paused in the defocus position, allowing defocus dose measurements at the intracranial target and periphery. Measured dose increases with frequency of repositioning and with helmet collimator size. During couch transit, the target receives more dose than peripheral regions; however, in the defocus position, the greatest dose is superior to the target site. The automatic positioning system for the Leksell Gamma Knife model 4C results in an additional dose of up to 3.87 +/- 0.07%, 4.97 +/- 0.04%, and 5.71 +/- 0.07% to the target site; its periphery receives additional dose that varies depending on its position relative to the target. There is also dose contribution to the patient in the defocus position, where the APS repositions the patient from one treatment coordinate to another

  1. Quantitative Analysis of Heavy Metals in Water Based on LIBS with an Automatic Device for Sample Preparation

    Science.gov (United States)

    Hu, Li; Zhao, Nanjing; Liu, Wenqing; Meng, Deshuo; Fang, Li; Wang, Yin; Yu, Yang; Ma, Mingjun

    2015-08-01

    Heavy metals in water can be deposited on graphite flakes, which can be used as an enrichment method for laser-induced breakdown spectroscopy (LIBS) and is studied in this paper. The graphite samples were prepared with an automatic device, which was composed of a loading and unloading module, a quantitatively adding solution module, a rapid heating and drying module and a precise rotating module. The experimental results showed that the sample preparation methods had no significant effect on sample distribution and the LIBS signal accumulated in 20 pulses was stable and repeatable. With an increasing amount of the sample solution on the graphite flake, the peak intensity at Cu I 324.75 nm accorded with the exponential function with a correlation coefficient of 0.9963 and the background intensity remained unchanged. The limit of detection (LOD) was calculated through linear fitting of the peak intensity versus the concentration. The LOD decreased rapidly with an increasing amount of sample solution until the amount exceeded 20 mL and the correlation coefficient of exponential function fitting was 0.991. The LOD of Pb, Ni, Cd, Cr and Zn after evaporating different amounts of sample solution on the graphite flakes was measured and the variation tendency of their LOD with sample solution amounts was similar to the tendency for Cu. The experimental data and conclusions could provide a reference for automatic sample preparation and heavy metal in situ detection. supported by National Natural Science Foundation of China (No. 60908018), National High Technology Research and Development Program of China (No. 2013AA065502) and Anhui Province Outstanding Youth Science Fund of China (No. 1108085J19)

  2. Reorientation simplified: A device for recording and reproducing the path of insertion for removable partial dentures

    Directory of Open Access Journals (Sweden)

    Vaibhav D Kamble

    2014-01-01

    Full Text Available Aim: The record of path of insertion on the dental cast is part of the dentist′s work authorization to the dental laboratory technician. The path of insertion record enables the dental technician to replace the cast on a surveyor in the same position that the dentist selected. Analysis of factors that influence the path of insertion should determine a path of insertion that will reduce the potential for dislodgement and promote stability of removable partial denture (RPD. Materials and Methods: The recording of the relation of a cast to a dental surveyor and the transfer of this relationship to the dental laboratory may be done by tripodization, by scoring the base of the cast, or by cementing a reference pin on the cast. Conclusion: Recording the established path of insertion can be difficult when the procedure uses a cemented pin and the casts are mounted in an articulator. This article describes a procedure for innovative dowel pin and sleeve device to record the path of insertion of RPDs, which serves the same purpose as the cemented pin but can be easily removed and replaced.

  3. Experiments on the data recording of optical waveguide multilayer storage devices

    Science.gov (United States)

    Liang, Zhongcheng; Ding, Dongyan; Xie, Haiyan; Gu, Minfen; Chen, Jiabi; Zhuang, Songlin

    2005-12-01

    The basic principles of optical waveguide multilayer storage (WMS) device include recording data in the form of waveguide defects, reading data by collecting the scatter light from the waveguide defects, and restraining the cross talk between layers by taking the benefit of the waveguide structure. In this paper, we give some experimental results obtained by three different approaches of data recording. They are laser direct writing, photolithography and hot embossing. In the first method, a laser beam is focused on the top of a polymer film. The thermal effect alters the medium property locally at the focus point, which acts as the defect in the waveguide structure. The second method resorts to the processes of photolithography to record pits on the photoresist layer. The process of hot embossing is similar to the fabrication of CD-ROM, however, the data pits deeper than the wavelength are embossed on the polymer surface to increase the scattering efficiency. WMS devices based on different data writing methods are presented and the data scattering patterns are observed. The comparison between the different data writing approaches is made and discussed as well.

  4. Predictable Technique to Register Retruded Contact Position (RCP) Using a Disposable Jaw Relation Recording Device.

    Science.gov (United States)

    Daher, Tony; Lobel, William A; Massad, Joseph; Ahuja, Swati; Danilov, Zarko Jack

    2015-05-01

    The dental literature presents various definitions and techniques to describe and register centric relation (CR) or centric occlusion (CO). Briefly reviewing the literature in relation to CR, this article proposes the use of the term retruded contact position (RCP), clinically defined as retruded, unstrained, repeatable position and where the mandibular movements start when a Gothic arch tracing is used. With this clinical definition, a technique can be easily selected that meets all the requirements of such position. The article discusses the use of a jaw recorder that is an intraorally graphic recording device that results in a tracing of mandibular movements in one plane, with the apex of the tracing indicating the retruded, unstrained, and repeatable relationship. The intersection of the arcs produced by the right and left working movement form the apex of the Gothic arch tracing. Several clinical situations using the jaw recorder are described. Clinicians can now quickly and accurately record RCP, balance complete, partial, or implant dentures, and orthopedically reposition the mandible. The technique achieves highly reliable and reproducible results.

  5. Evaluation of listener-based anuran surveys with automated audio recording devices

    Science.gov (United States)

    Shearin, A. F.; Calhoun, A.J.K.; Loftin, C.S.

    2012-01-01

    Volunteer-based audio surveys are used to document long-term trends in anuran community composition and abundance. Current sampling protocols, however, are not region- or species-specific and may not detect relatively rare or audibly cryptic species. We used automated audio recording devices to record calling anurans during 2006–2009 at wetlands in Maine, USA. We identified species calling, chorus intensity, time of day, and environmental variables when each species was calling and developed logistic and generalized mixed models to determine the time interval and environmental variables that optimize detection of each species during peak calling periods. We detected eight of nine anurans documented in Maine. Individual recordings selected from the sampling period (0.5 h past sunset to 0100 h) described in the North American Amphibian Monitoring Program (NAAMP) detected fewer species than were detected in recordings from 30 min past sunset until sunrise. Time of maximum detection of presence and full chorusing for three species (green frogs, mink frogs, pickerel frogs) occurred after the NAAMP sampling end time (0100 h). The NAAMP protocol’s sampling period may result in omissions and misclassifications of chorus sizes for certain species. These potential errors should be considered when interpreting trends generated from standardized anuran audio surveys.

  6. MyCare Card Development: portable GUI framework for the personal electronic health record device.

    Science.gov (United States)

    Rybynok, V O; Kyriacou, P A; Binnersley, J; Woodcock, A

    2011-01-01

    In most emergency situations, health professionals rely on patients to provide information about their medical history. However, in some cases patients might not be able to communicate this information, and in most countries an online integrated patient record system has not been adopted yet. Therefore, in order to address this issue the ongoing project MyCare Card (MyC², www.myc2.org) has been established. The aim of this project is to design, implement, and evaluate a prototype patient held electronic health record device. Due to the wide range of user requirements, the device, its communication interface, and its software have to be compatible with many common platforms and operating systems. Thus, this paper is addressing one of the software compatibility matters-the cross-platform GUI implementation. It introduces a portable object-oriented GUI framework, suitable for a declarative layout definition, components customization, and fine model-view code separation. It also rationalizes the hardware and software solutions selected for this project implementation.

  7. Implementing unique device identification in electronic health record systems: organizational, workflow, and technological challenges.

    Science.gov (United States)

    Campion, Thomas R; Johnson, Stephen B; Paxton, Elizabeth W; Mushlin, Alvin I; Sedrakyan, Art

    2014-01-01

    The United States Food and Drug Administration (FDA) has proposed creating a unique device identification (UDI) system for medical devices to facilitate postmarket surveillance, quality improvement, and other applications. Although a small number of health care institutions have implemented initiatives comparable with the proposed UDI system by capturing data in electronic health record (EHR) systems, it is unknown whether institutions with fewer resources will be able to similarly implement UDI. This paper calls attention to organizational, workflow, and technological challenges in UDI system implementation by drawing from the literature on EHR and clinical research systems implementation. Organizational challenges for UDI system implementation include coordinating multiple stakeholders to define UDI attributes and characteristics for use in EHRs, guiding organizational change within individual institutions for integrating UDI with EHRs, and guiding organizational change for reusing UDI data captured in EHRs. Workflow challenges include capturing UDI data in EHRs using keyboard entry and barcode scanning. Technological challenges involve interfacing UDI data between EHRs and surgical information systems, transforming UDI and related patient data from EHRs for research, and applying data standards to UDI within and beyond EHRs. We provide recommendations for regulations, organizational sharing, and professional society engagement to raise awareness of and overcome UDI system implementation challenges. Implementation of the UDI system will require integration of people, process, and technology to achieve benefits envisioned by FDA, including improved postmarket device surveillance and quality of care.

  8. A nonferrous instrumental joystick device for recording behavioral responses during magnetic resonance imaging and spectroscopy.

    Science.gov (United States)

    Lukas, S E; Dobrosielski, M; Chiu, T M; Woods, B T; Teoh, S K; Mendelson, J H

    1993-12-01

    A nonferrous joystick device was developed to permit subjects to continuously report ethanol-induced alterations in subjective mood states while undergoing a magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) procedure. The device utilizes air pressure (supplied by a small compressor) that is directed to a series of tubes that terminate in a hand-held unit. The hand-held unit easily fits inside the magnet and resembles a standard computer game joystick except that the ends of the air hoses replace the buttons. The control unit contains three pressure transducers, which are triggered when the tubes are occluded by the subject, activating different pens on an event marker located 6 m from the whole body imager. The unit is safe to use inside a 1.5-Tesla magnetic field and does not disrupt the MRI and MRS recording procedures. Subjective reports of ethanol-induced euphoria and intoxication paralleled the MRS detection of ethanol in the brain. This device could prove to be useful in numerous behavioral studies involving whole-body MRI and MRS.

  9. Statistical analysis of automatically detected ion density variations recorded by DEMETER and their relation to seismic activity

    Directory of Open Access Journals (Sweden)

    Michel Parrot

    2012-04-01

    Full Text Available

    Many examples of ionospheric perturbations observed during large seismic events were recorded by the low-altitude satellite DEMETER. However, there are also ionospheric variations without seismic activity. The present study is devoted to a statistical analysis of the night-time ion density variations. Software was implemented to detect variations in the data before earthquakes world-wide. Earthquakes with magnitudes >4.8 were selected and classified according to their magnitudes, depths and locations (land, close to the coast, or below the sea. For each earthquake, an automatic search for ion density variations was conducted from 15 days before the earthquake, when the track of the satellite orbit was at less than 1,500 km from the earthquake epicenter. The result of this first step provided the variations relative to the background in the vicinity of the epicenter for each 15 days before each earthquake. In the second step, comparisons were carried out between the largest variations over the 15 days and the earthquake magnitudes. The statistical analysis is based on calculation of the median values as a function of the various seismic parameters (magnitude, depth, location. A comparison was also carried out with two other databases, where on the one hand, the locations of the epicenters were randomly modified, and on the other hand, the longitudes of the epicenters were shifted. The results show that the intensities of the ionospheric perturbations are larger prior to the earthquakes than prior to random events, and that the perturbations increase with the earthquake magnitudes.


  10. Engineering model of the electric drives of separation device for simulation of automatic control systems of reactive power compensation by means of serially connected capacitors

    Science.gov (United States)

    Juromskiy, V. M.

    2016-09-01

    It is developed a mathematical model for an electric drive of high-speed separation device in terms of the modeling dynamic systems Simulink, MATLAB. The model is focused on the study of the automatic control systems of the power factor (Cosφ) of an actuator by compensating the reactive component of the total power by switching a capacitor bank in series with the actuator. The model is based on the methodology of the structural modeling of dynamic processes.

  11. 单片机控制自动透析器复用机的研制%The Development of an Automatic Dialyser Reuse Device by Microcomputer

    Institute of Scientific and Technical Information of China (English)

    高虹; 张志辉; 刘天亮; 沈因泰; 孟雅林; 李晓研

    2001-01-01

    介绍采用单片机控制的自动透析器复用机的工作原理,仪器构成及主要功能。比以往的透析极器复用方法更具有实用性、可靠性、操作简便、效率高的优点。%This article introduces the principles,composition and main functions of an automatic dialyser reuse device by microcomputer. It Ras more practical uses,better reliability,easier operations and greater effect than previous ones,and it's an ideal dialyser ruse device.

  12. Polymer ferroelectric field-effect memory device with SnO channel layer exhibits record hole mobility

    KAUST Repository

    Caraveo-Frescas, J. A.

    2014-06-10

    Here we report for the first time a hybrid p-channel polymer ferroelectric field-effect transistor memory device with record mobility. The memory device, fabricated at 200C on both plastic polyimide and glass substrates, uses ferroelectric polymer P(VDF-TrFE) as the gate dielectric and transparent p-type oxide (SnO) as the active channel layer. A record mobility of 3.3 cm 2V-1s-1, large memory window (~16 V), low read voltages (~-1 V), and excellent retention characteristics up to 5000 sec have been achieved. The mobility achieved in our devices is over 10 times higher than previously reported polymer ferroelectric field-effect transistor memory with p-type channel. This demonstration opens the door for the development of non-volatile memory devices based on dual channel for emerging transparent and flexible electronic devices.

  13. Polymer ferroelectric field-effect memory device with SnO channel layer exhibits record hole mobility

    Science.gov (United States)

    Caraveo-Frescas, J. A.; Khan, M. A.; Alshareef, H. N.

    2014-06-01

    Here we report for the first time a hybrid p-channel polymer ferroelectric field-effect transistor memory device with record mobility. The memory device, fabricated at 200°C on both plastic polyimide and glass substrates, uses ferroelectric polymer P(VDF-TrFE) as the gate dielectric and transparent p-type oxide (SnO) as the active channel layer. A record mobility of 3.3 cm2V-1s-1, large memory window (~16 V), low read voltages (~-1 V), and excellent retention characteristics up to 5000 sec have been achieved. The mobility achieved in our devices is over 10 times higher than previously reported polymer ferroelectric field-effect transistor memory with p-type channel. This demonstration opens the door for the development of non-volatile memory devices based on dual channel for emerging transparent and flexible electronic devices.

  14. Record mobility in transparent p-type tin monoxide films and devices by phase engineering

    KAUST Repository

    Caraveo-Frescas, Jesus Alfonso

    2013-06-25

    Here, we report the fabrication of nanoscale (15 nm) fully transparent p-type SnO thin film transistors (TFT) at temperatures as low as 180 C with record device performance. Specifically, by carefully controlling the process conditions, we have developed SnO thin films with a Hall mobility of 18.71 cm2 V-1 s-1 and fabricated TFT devices with a linear field-effect mobility of 6.75 cm2 V-1 s -1 and 5.87 cm2 V-1 s-1 on transparent rigid and translucent flexible substrates, respectively. These values of mobility are the highest reported to date for any p-type oxide processed at this low temperature. We further demonstrate that this high mobility is realized by careful phase engineering. Specifically, we show that phase-pure SnO is not necessarily the highest mobility phase; instead, well-controlled amounts of residual metallic tin are shown to substantially increase the hole mobility. A detailed phase stability map for physical vapor deposition of nanoscale SnO is constructed for the first time for this p-type oxide. © 2013 American Chemical Society.

  15. The bacterial nanorecorder: engineering E. coli to function as a chemical recording device.

    Directory of Open Access Journals (Sweden)

    Prasanna Bhomkar

    Full Text Available Synthetic biology is an emerging branch of molecular biology that uses synthetic genetic constructs to create man-made cells or organisms that are capable of performing novel and/or useful applications. Using a synthetic chemically sensitive genetic toggle switch to activate appropriate fluorescent protein indicators (GFP, RFP and a cell division inhibitor (minC, we have created a novel E. coli strain that can be used as a highly specific, yet simple and inexpensive chemical recording device. This biological "nanorecorder" can be used to determine both the type and the time at which a brief chemical exposure event has occurred. In particular, we show that the short-term exposure (15-30 min of cells harboring this synthetic genetic circuit to small molecule signals (anhydrotetracycline or IPTG triggered long-term and uniform cell elongation, with cell length being directly proportional to the time elapsed following a brief chemical exposure. This work demonstrates that facile modification of an existing genetic toggle switch can be exploited to generate a robust, biologically-based "nanorecorder" that could potentially be adapted to detect, respond and record a wide range of chemical stimuli that may vary over time and space.

  16. The bacterial nanorecorder: engineering E. coli to function as a chemical recording device.

    Science.gov (United States)

    Bhomkar, Prasanna; Materi, Wayne; Wishart, David S

    2011-01-01

    Synthetic biology is an emerging branch of molecular biology that uses synthetic genetic constructs to create man-made cells or organisms that are capable of performing novel and/or useful applications. Using a synthetic chemically sensitive genetic toggle switch to activate appropriate fluorescent protein indicators (GFP, RFP) and a cell division inhibitor (minC), we have created a novel E. coli strain that can be used as a highly specific, yet simple and inexpensive chemical recording device. This biological "nanorecorder" can be used to determine both the type and the time at which a brief chemical exposure event has occurred. In particular, we show that the short-term exposure (15-30 min) of cells harboring this synthetic genetic circuit to small molecule signals (anhydrotetracycline or IPTG) triggered long-term and uniform cell elongation, with cell length being directly proportional to the time elapsed following a brief chemical exposure. This work demonstrates that facile modification of an existing genetic toggle switch can be exploited to generate a robust, biologically-based "nanorecorder" that could potentially be adapted to detect, respond and record a wide range of chemical stimuli that may vary over time and space.

  17. INGV Oblique Ionograms Automatic Scaling Algorithm applied to the ionograms recorded by Ebro Observatory ionosonde in disturbed conditions

    Science.gov (United States)

    Ippolito, Alessandro; Scotto, Carlo; Altadill, David; Blanch, Estefania

    2017-04-01

    The OIASA algorithm (Oblique Ionograms Automatic Scaling Algorithm) for the identification of trace of oblique ionograms has been applied to the oblique ionograms produced at Ebro Observatory (Spain) and related to the radiolink between the ionospheric stations of Dourbes (50.1 N, 4.6 E) and Roquetes (40.8 N, 0.5 E). Four different periods of 2015 have been analysed, each of them characterised by the occurrence of geomagnetic storms. The algorithm allows the determination of the Maximum Usable Frequency (MUF) for communication between the transmitter and receiver, and shows a very good capacity in automatically rejecting poor quality ionograms. The behaviour and performance of the autoscaling programs under geomagnetic disturbed condition have been evaluated. The results show a good agreement between MUF values provided by the automatic scaling algorithm and the MUF values manually scaled by an expert operator. Furthermore, the results show the good capabilities of OIASA in discarding ionograms that lack of sufficient information.

  18. Development and Application of Automatic Transfusion Alarming Device%输液自动报警器的研制与应用

    Institute of Scientific and Technical Information of China (English)

    黄美霞; 严潭

    2013-01-01

    Objective To develop an automatic device which can alarm automatically at the end of medical transfusion. Methods A floating ball was placed in Murphy's tube, and infrared emitter and receiver were put outside of the tube, with alarming circuit mobilized. The liquid level and floating ball fell down at the end of transfusion until the infrared could not be blocked, then infrared receiver receive infrared signals and the device alarmed. Resulte The device gained the advantages of high accuracy and reliability, easy operation and maintenance, and low cost. Conchision The automatic transfusion alarming device can enhance nursing efficiency and has high social & economic benefits.%目的:研制一种在输液终末时可自动报警的输液报警器.方法:在莫菲氏管内增加浮球,管外两侧设置红外发射管及接收管,外联报警线路.输液终末时液面降低,浮球下降不再遮挡红外线,红外线接收管接收红外线继而产生报警.结果:该输液报警器准确可靠,操作简单,成本低廉,维护方便.结论:该输液报警器实用性强,临床应用可明显提高护理工作效率,具有良好的社会和经济效益.

  19. Wireless behind-the-ear EEG recording device with wireless interface to a mobile device (iPhone/iPod touch).

    Science.gov (United States)

    Do Valle, Bruno G; Cash, Sydney S; Sodini, Charlie G

    2014-01-01

    EEG remains the mainstay test for the diagnosis and treatment of patients with epilepsy. Unfortunately, ambulatory EEG systems are far from ideal for patients that have infrequent seizures. The systems only last up to 3 days and if a seizure is not captured during the recordings, the doctor cannot give a definite diagnosis of the patient's condition. The ambulatory systems also suffers from being too bulky and posing some constraints on the patient, such as not being able to shower during the recordings. This paper presents a novel behind-the-ear EEG recording device that uses an iPhone or iPod Touch to continuously upload the patient's data to a secure server. This device not only gives the doctors access to the EEG data in real time but it can be easily removed and re-applied by the patient at any time, thus reducing the interference with quality of life.

  20. Practical electronic information system and printed recording promote management accuracy in an early-stage small-scale non-automatic biobank.

    Science.gov (United States)

    Gao, Zhimei; Gu, Yijun; Lv, Zhibao; Yu, Guangjun; Zhou, Junmei

    2015-02-01

    It is particularly necessary for biomedical researchers to obtain applicable biosamples accurately and efficiently, especially from a biobank with multiple-disease catalogs. To optimize the retrieval procedure, especially in the early stages of a non-automatic biobank, we developed a procedure that combined the electronic information system with a graphically designed printed recording system, which assisted in retrieving the samples quickly in a visualized way. In this procedure, we designed tables depending on the structure of equipment and registered the corresponding information in the tables layer by layer. Different samples from different types of diseases were first registered in the electronic system with the specific pre-allocation and barcodes. Then they were stored in the allocated position using their respective barcodes. In this way, the sample number and the location information in the electronic database were completely matched with the printed record. When the samples are needed, it is convenient to check the electronic information with the printed record. This procedure provides a convenient way to record the sample information during its lifecycle, and helps the administrator to double check information about the sample. The current solution offers an easy way for the transformation of a non-automatic biobank from the small-scale early-stage to the large-scale highly-automated level.

  1. VP宽频带倾斜仪现场自动校准装置设计%Design of an On-site Automatic Calibration Device for the Vertical Pendulum Broadband Tiltmeter

    Institute of Scientific and Technical Information of China (English)

    马武刚; 张肖

    2016-01-01

    为了对VP宽频带倾斜仪进行现场校准,设计了一款基于单片机 AT89 C51的新型现场自动校准装置。经验证该装置在+8V激励电压情况下与高精度激光干涉仪结合使用,其校准相对误差为0.36%,满足小于1%的校准相对误差要求。%The vertical pendulum (VP)broadband tiltmeter is a type of earthquake precursor observation equipment that records the inclined earth tide.The scale value represents the relation-ship between the measured physical quantity and the output voltage.Its accuracy plays a key role in data reliability.The calibration process provides the scale value for the instrument.Most tradi-tional calibration methods,e.g.,plat calibrations in the laboratory and manual calibrations on site, cannot satisfy the accuracy levels required in scientific applications,or might affect the continuity of observations.In this study,we investigate an on-site automatic calibration device,in which small-scale shifts are introduced by a piezoelectric ceramic under the control of a single chip microcomputer AT89C51.The device then calculates the scale values from serial corresponding values of the outputs of the VP broadband tiltmeter and a laser interferometer.This device could realize the automatic operation of calibration,and its relative calibration accuracy is 0.36% when the excitation voltage is adj usted to +8 V,and meets the requirement of a relative error of less than 1%.

  2. [Development of an automatic vacuum liquid chromatographic device and its application in the separation of the components from Schisandra chinensis (Turz) Baill].

    Science.gov (United States)

    Zhu, Jingbo; Liu, Baoyue; Shan, Shibo; Ding, Yanl; Kou, Zinong; Xiao, Wei

    2015-08-01

    In order to meet the needs of efficient purification of products from natural resources, this paper developed an automatic vacuum liquid chromatographic device (AUTO-VLC) and applied it to the component separation of petroleum ether extracts of Schisandra chinensis (Turcz) Baill. The device was comprised of a solvent system, a 10-position distribution valve, a 3-position changes valve, dynamic axis compress chromatographic columns with three diameters, and a 10-position fraction valve. The programmable logic controller (PLC) S7- 200 was adopted to realize the automatic control and monitoring of the mobile phase changing, column selection, separation time setting and fraction collection. The separation results showed that six fractions (S1-S6) of different chemical components from 100 g Schisandra chinensis (Turcz) Baill. petroleum ether phase were obtained by the AUTO-VLC with 150 mm diameter dynamic axis compress chromatographic column. A new method used for the VLC separation parameters screened by using multiple development TLC was developed and confirmed. The initial mobile phase of AUTO-VLC was selected by taking Rf of all the target compounds ranging from 0 to 0.45 for fist development on the TLC; gradient elution ratio was selected according to k value (the slope of the linear function of Rf value and development times on the TLC) and the resolution of target compounds; elution times (n) were calculated by the formula n ≈ ΔRf/k. A total of four compounds with the purity more than 85% and 13 other components were separated from S5 under the selected conditions for only 17 h. Therefore, the development of the automatic VLC and its method are significant to the automatic and systematic separation of traditional Chinese medicines.

  3. DEFINING THE MAGNETIC FIELD FOR THE ELEMENTS OF AIR MOTORS AND DEVICES FOR AUTOMATIC TAKE-OFF OF THE MILKING MACHINE

    Directory of Open Access Journals (Sweden)

    Koledov R. V.

    2015-04-01

    Full Text Available Efficient dairy cattle breeding are largely dependent from technology content and service animals. Most farms use a tethered way content. With this method of milking, the technology requires the introduction of new techniques to increase productivity on the farm and cost reduction of dairy products. The most rational is improving the design of existing milking machines. Regarded device for automatic removal of hanging part of a milking machine, its structure and working principle. The main unit of the device is a pneumatic motor that operates from the vacuum system of the milking plant. In the housing mounted on the shaft of the pneumatic motor rotor with curved vanes, there are magnetic elements. These elements should have the necessary geometrical and force parameters to ensure the normal operation of the device for automatic removal of hanging part of milking machine. The article describes a laboratory research and an analysis of the magnetic elements. In laboratory studies, we have revealed a dependence of the traction capacity of pneumatic motor from linear and power parameters of the magnetic elements, as well as established necessary geometric parameters and the magnetic field strength of the elements for normal operation

  4. Device for automatic topping up of distilled water in the cells of a battery. Vorrichtung zum automatischen Nachfuellen von destilliertem Wasser in den Zellen eines Akkumulators

    Energy Technology Data Exchange (ETDEWEB)

    Bothe, F.W.; Krause, E.

    1983-12-15

    In a device for the automatic topping up of distilled water in the cells of a battery with a closing stopper for the cells, to which water is supplied via a first hose system, from which water is sucked via a second hose system, and which top up the cell with the distilled water supplied according to the electrolyte level in the cell, the system is not liable to have faults because mechanical parts are avoided and a high filling rate is achieved by the stopper having a container for the incoming water, whose level can be kept constant by the suction system effective above the required level.

  5. Frequency and damping ratio assessment of high-rise buildings using an Automatic Model-Based Approach applied to real-world ambient vibration recordings

    Science.gov (United States)

    Nasser, Fatima; Li, Zhongyang; Gueguen, Philippe; Martin, Nadine

    2016-06-01

    This paper deals with the application of the Automatic Model-Based Approach (AMBA) over actual buildings subjected to real-world ambient vibrations. In a previous paper, AMBA was developed with the aim of automating the estimation process of the modal parameters and minimizing the estimation error, especially that of the damping ratio. It is applicable over a single-channel record, has no parameters to be set, and no manual initialization phase. The results presented in this paper should be regarded as further documentation of the approach over real-world ambient vibration signals.

  6. High-Tc superconducting quantum interference device recordings of spontaneous brain activity: Towards high-Tc magnetoencephalography

    Science.gov (United States)

    Öisjöen, F.; Schneiderman, J. F.; Figueras, G. A.; Chukharkin, M. L.; Kalabukhov, A.; Hedström, A.; Elam, M.; Winkler, D.

    2012-03-01

    We have performed single- and two-channel high transition temperature (high-Tc) superconducting quantum interference device (SQUID) magnetoencephalography (MEG) recordings of spontaneous brain activity in two healthy human subjects. We demonstrate modulation of two well-known brain rhythms: the occipital alpha rhythm and the mu rhythm found in the motor cortex. We further show that despite higher noise-levels compared to their low-Tc counterparts, high-Tc SQUIDs can be used to detect and record physiologically relevant brain rhythms with comparable signal-to-noise ratios. These results indicate the utility of high-Tc technology in MEG recordings of a broader range of brain activity.

  7. Design of Pneumatic Device of the Automatic Transmission Performance Test-bed%气动自动变速器试验台架的设计

    Institute of Scientific and Technical Information of China (English)

    王利利

    2012-01-01

    根据自动变速器的工作原理特性,结合自动变速器的专业教学实践,分析了目前大多数变速器解剖试验台架的缺点,设计了以气压为动力传动介质的自动变速器解剖运行试验台.气动自动变速器实物解剖试验台架能实现动态演示,突破了教学上的难点,提高了学生的学习兴趣,取得了较好的试验教学效果.%According to the work principle of automatic transmission,combined with the experimental teaching of automatic transmission, the current most transmission test-bed shortcomings were analyzed. An automat transmission test-bed introducing of pneumatic device was designed. The test-bed can realize the dynamic demonstration and break through the teaching difficulty, which enables students to improve the study interest, and get better effects of teaching.

  8. Electronic health records and cardiac implantable electronic devices: new paradigms and efficiencies.

    Science.gov (United States)

    Slotwiner, David J

    2016-10-01

    The anticipated advantages of electronic health records (EHRs)-improved efficiency and the ability to share information across the healthcare enterprise-have so far failed to materialize. There is growing recognition that interoperability holds the key to unlocking the greatest value of EHRs. Health information technology (HIT) systems including EHRs must be able to share data and be able to interpret the shared data. This requires a controlled vocabulary with explicit definitions (data elements) as well as protocols to communicate the context in which each data element is being used (syntactic structure). Cardiac implantable electronic devices (CIEDs) provide a clear example of the challenges faced by clinicians when data is not interoperable. The proprietary data formats created by each CIED manufacturer, as well as the multiple sources of data generated by CIEDs (hospital, office, remote monitoring, acute care setting), make it challenging to aggregate even a single patient's data into an EHR. The Heart Rhythm Society and CIED manufacturers have collaborated to develop and implement international standard-based specifications for interoperability that provide an end-to-end solution, enabling structured data to be communicated from CIED to a report generation system, EHR, research database, referring physician, registry, patient portal, and beyond. EHR and other health information technology vendors have been slow to implement these tools, in large part, because there have been no financial incentives for them to do so. It is incumbent upon us, as clinicians, to insist that the tools of interoperability be a prerequisite for the purchase of any and all health information technology systems.

  9. A novel automatic regulatory device for continuous bladder irrigation based on wireless sensor in patients after transurethral resection of the prostate: A prospective investigation.

    Science.gov (United States)

    Ding, Aimin; Cao, Huling; Wang, Lihua; Chen, Jiangang; Wang, Jian; He, Bosheng

    2016-12-01

    Benign prostatic hyperplasia is a common progressive disease in aging men, which leads to a significant impact on daily lives of patients. Continuous bladder irrigation (CBI) is a supplementary option for preventing the adverse events following transurethral resection of the prostate (TURP). Regulation of the flow rate based on the color of drainage bag is significant to prevent the clot formation and retention, which is controlled manually at present. To achieve a better control of flow rate and reduce inappropriate flow rate-related adverse effects, we designed an automatic flow rate controller for CBI applied with wireless sensor and evaluated its clinical efficacy. The therapeutic efficacy was evaluated in patients receiving the novel automatic bladder irrigation post-TURP in the experimental group compared with controls receiving traditional bladder irrigation in the control group. A total of 146 patients were randomly divided into 2 groups-the experimental group (n = 76) and the control group (n = 70). The mean irrigation volume of the experimental group (24.2 ± 3.8 L) was significantly lower than that of the controls (54.6 ± 5.4 L) (P irrigation device had significantly decreased incidence of clot retention (8/76) and cystospasm (12/76) compared to controls (21/70; 39/70, P irrigation time (28.6 ± 2.7 vs 29.5 ± 3.4 hours, P = 0.077). The study suggests that the automatic regulating device applied with wireless sensor for CBI is safe and effective for patients after TURP. However, studies with a large population of patients and a long-term follow-up should be conducted to validate our findings.

  10. Design, development and experimental validation of a non-invasive device for recording respiratory events during bottle feeding.

    Science.gov (United States)

    Cavaiola, C; Tamilia, E; Massaroni, C; Morbidoni, G; Schena, E; Formica, D; Taffoni, F

    2014-01-01

    In newborns, a poor coordination between sucking, swallowing and breathing may undermine the effectiveness of oral feeding and signal immaturity of Central Nervous System. The aim of this work is to develop and validate a non-invasive device for recording respiratory events of newborns during bottle feeding. The proposed device working principle is based on the convective heat exchanged between two hot bodies and the infants' breathing. The sensing elements are inserted into a duct and the gas exchanged by infants is conveyed into this duct thanks to an ad hoc designed system to be mounted on a commercial feeding bottle. Two sets of experiments have been carried out in order to investigate the discrimination threshold of the device and characterize the sensor response at oscillating flows. The effect of distance and tilt between nostrils and device, and the breathing frequency, have been investigated simulating nostrils and neonatal respiratory pattern. The device has a discrimination threshold lower than 0.5 L/min at both 10° and 20° of tilt. Distance for these two settings does not affect the threshold in the investigated range (10-20 mm). Moreover, the device is able to detect breathing events, and to discriminate the onset of expiratory phase, during a neonatal respiratory task delivered by a lung simulator. The results foster the successful application of this device to the assessment of the temporal breathing pattern of newborns during bottle feeding with a non-invasive approach.

  11. Tantalum oxide nanoscale resistive switching devices: TEM/EELS study (Presentation Recording)

    Science.gov (United States)

    Norris, Kate J.; Zhang, Jiaming; Merced-Grafals, Emmanuelle; Musunuru, Srinitya; Zhang, Max; Samuels, Katy; Yang, Jianhua J.; Kobayashi, Nobuhiko P.

    2015-08-01

    The field of non-volatile memory devices has been boosted by resistive switching, a reversible change in electrical resistance of a dielectric layer through the application of a voltage potential. Tantalum oxide being one of the leading candidates for the dielectric component of resistance switching devices was investigated in this study. 55nm TaOx devices in all states were compared through cross sectional TEM techniques including HRTEM, EELS, and EFTEM and will be discussed in this presentation. Based on the chemical and physical features found in the cross sectioned nanodevices we will discuss the switching mechanism of these nanoscale devices.

  12. 上出件冲模外翻式接盘结构设计%Design of automatic reclaiming device for upper ejector stamping die

    Institute of Scientific and Technical Information of China (English)

    杨程; 赵升吨; 章建军

    2011-01-01

    在对上出件冲模结构特点进行分析的基础上,提出了出件结构应满足的要求,在对连杆结构进行简单改进后设计了外翻式出件结构,该结构利用冲床滑块的动力自动运行,并能适应不同的模具高度.利用Pro/E对结构的运动进行了仿真,证明了外翻式出件结构的有效性.%Based on analysis of the characteristics of upper ejector stamping die, the features of reclaiming device were pointed out. A kind of automatic reclaiming device based on the connecting rod was designed. Sliding block of the press was taken as power source of the device, which can be used in different die height The motion simulation was carried out in Pro/Engineering, which shows the validity of the reclaiming device in upper ejector stamping die.

  13. 40 CFR 65.162 - Nonflare control and recovery device monitoring records.

    Science.gov (United States)

    2010-07-01

    .... (a) Monitoring system records. For process vents and high-throughput transfer racks, the owner or...) Compute daily average values of the monitored operating parameter based on recorded data. If the...

  14. Head Strap Double Fluid Level Device: An Innovative and User Friendly Design to Record Natural Head Position (NHP).

    Science.gov (United States)

    John, Lijo; Jose, Nidhin Philip; Shetty, Siddarth

    2015-01-01

    Head positions can be oriented in a standardized position when the patient stands upright and focusses his/her eyes into a point in infinity. This is the natural head position. This position offers the maximum reproducibility and correlates well with the clinical picture offered to the diagnostician. This article describes an innovative and user friendly method to record natural head position using the head strap double fluid level device, a design modified from the popular fluid level device by Showfety, Vig and Matteson.

  15. An Automatic Device Describe Method for Internet of Things%一种物联网设备自动描述方法

    Institute of Scientific and Technical Information of China (English)

    李勐; 王晓峰; 崔莉

    2016-01-01

    Service description file,which is fundamental for the service-oriented architecture,can be used by the IoT sensing devices to accelerate resource discovery and searching processes.Currently,these files are mostly written manually by the device developers,this process is inefficient and fallible.The state-of-art method SPITFIRE can generate the devices'de-scription in a semi-automatic way,but its configuration can be trivial and its accuracy still can be improved.In this paper,we proposed a novel automatic device description method,with which devices can automatically generate their individual descrip-tion.We designed a clustering algorithm based on DBSCAN to infer the description of sensing device,taking advantages of ex-isting descriptions and the data features of series gained by data sampling.A metric learning algorithm is also implemented to optimize the parameter used by the clustering algorithm.All the routines run independently on different devices,and no manual intervention is needed during the self-description process.Through simulation,we show that this method has a prominent ad-vantage of precision over other state-of-art methods,making our method more suitable for the massive IoT devices.%物联网感知设备的服务描述文件为海量资源的发现与检索提供了有效的支持,是面向服务的物联网架构的基础.当前服务描述文件主要通过开发人员手工撰写完成,工作量大.现有研究 SPITFIRE 提出了一种半自动方法协助开发人员撰写服务描述文件,但方法本身为集中式方法,配置较复杂且精度过度依赖人工参数调优,不适合大规模部署.针对物联网海量设备的描述问题,本文提出了一种基于度量学习的分布式的物联网感知设备自动描述方法.该方法使用设备的多种数值特征作为输入,利用一种分布式的 DBSCAN 聚类算法对设备进行归类与推导,设备通过归类结果可自动生成自身描述文

  16. Effects and Satisfaction of Medical Device Safety Information Reporting System Using Electronic Medical Record

    Science.gov (United States)

    Jang, Hye Jung; Choi, Young Deuk

    2017-01-01

    Objectives This paper describes an evaluation study on the effectiveness of developing an in-hospital medical device safety information reporting system for managing safety information, including adverse incident data related to medical devices, following the enactment of the Medical Device Act in Korea. Methods Medical device safety information reports were analyzed for 190 cases that took place prior to the application of a medical device safety information reporting system and during a period when the reporting system was used. Also, questionnaires were used to measure the effectiveness of the medical device safety information reporting system. The analysis was based on the questionnaire responses of 15 reporters who submitted reports in both the pre- and post-reporting system periods. Results Sixty-two reports were submitted in paper form, but after the system was set up, this number more than doubled to 128 reports in electronic form. In terms of itemized reporting, a total of 45 items were reported. Before the system was used, 23 items had been reported, but this increased to 32 items after the system was put to use. All survey variables of satisfaction received a mean of over 3 points, while positive attitude, potential benefits, and positive benefits all exceeded 4 points, each receiving 4.20, 4.20, and 4.13, respectively. Among the variables, time-consuming and decision-making had the lowest mean values, each receiving 3.53. Satisfaction was found to be high for system quality and user satisfaction, but relatively low for time-consuming and decision-making. Conclusions We were able to verify that effective reporting and monitoring of adverse incidents and the safety of medical devices can be implemented through the establishment of an in-hospital medical device safety information reporting system that can enhance patient safety and medical device risk management. PMID:28523207

  17. Effects and Satisfaction of Medical Device Safety Information Reporting System Using Electronic Medical Record.

    Science.gov (United States)

    Jang, Hye Jung; Choi, Young Deuk; Kim, Nam Hyun

    2017-04-01

    This paper describes an evaluation study on the effectiveness of developing an in-hospital medical device safety information reporting system for managing safety information, including adverse incident data related to medical devices, following the enactment of the Medical Device Act in Korea. Medical device safety information reports were analyzed for 190 cases that took place prior to the application of a medical device safety information reporting system and during a period when the reporting system was used. Also, questionnaires were used to measure the effectiveness of the medical device safety information reporting system. The analysis was based on the questionnaire responses of 15 reporters who submitted reports in both the pre- and post-reporting system periods. Sixty-two reports were submitted in paper form, but after the system was set up, this number more than doubled to 128 reports in electronic form. In terms of itemized reporting, a total of 45 items were reported. Before the system was used, 23 items had been reported, but this increased to 32 items after the system was put to use. All survey variables of satisfaction received a mean of over 3 points, while positive attitude, potential benefits, and positive benefits all exceeded 4 points, each receiving 4.20, 4.20, and 4.13, respectively. Among the variables, time-consuming and decision-making had the lowest mean values, each receiving 3.53. Satisfaction was found to be high for system quality and user satisfaction, but relatively low for time-consuming and decision-making. We were able to verify that effective reporting and monitoring of adverse incidents and the safety of medical devices can be implemented through the establishment of an in-hospital medical device safety information reporting system that can enhance patient safety and medical device risk management.

  18. Diurnal patterns of salivary cortisol and DHEA using a novel collection device: electronic monitoring confirms accurate recording of collection time using this device.

    Science.gov (United States)

    Laudenslager, Mark L; Calderone, Jacqueline; Philips, Sam; Natvig, Crystal; Carlson, Nichole E

    2013-09-01

    The accurate indication of saliva collection time is important for defining the diurnal decline in salivary cortisol as well as characterizing the cortisol awakening response. We tested a convenient and novel collection device for collecting saliva on strips of filter paper in a specially constructed booklet for determination of both cortisol and DHEA. In the present study, 31 healthy adults (mean age 43.5 years) collected saliva samples four times a day on three consecutive days using filter paper collection devices (Saliva Procurement and Integrated Testing (SPIT) booklet) which were maintained during the collection period in a large plastic bottle with an electronic monitoring cap. Subjects were asked to collect saliva samples at awakening, 30 min after awakening, before lunch and 600 min after awakening. The time of awakening and the time of collection before lunch were allowed to vary by each subjects' schedule. A reliable relationship was observed between the time recorded by the subject directly on the booklet and the time recorded by electronic collection device (n=286 observations; r(2)=0.98). However, subjects did not consistently collect the saliva samples at the two specific times requested, 30 and 600 min after awakening. Both cortisol and DHEA revealed diurnal declines. In spite of variance in collection times at 30 min and 600 min after awakening, the slope of the diurnal decline in both salivary cortisol and DHEA was similar when we compared collection tolerances of ±7.5 and ±15 min for each steroid. These unique collection booklets proved to be a reliable method for recording collection times by subjects as well as for estimating diurnal salivary cortisol and DHEA patterns.

  19. A Kind of Dual-axis Automatic Tracking Solar Energy Device%一种基于双轴的太阳能自动跟踪装置

    Institute of Scientific and Technical Information of China (English)

    张新亮

    2015-01-01

    为了提高太阳能电池的转换效率,设计了一种以M sp430F149单片机为核心,基于双轴的太阳能自动跟踪装置。该装置能精确跟踪太阳运动轨迹,使太阳能电池组件在晴天时始终垂直接收太阳光;在阴天时自动切换至时钟式跟踪,其转换效率高、成本低。实验结果表明,对比固定安装的太阳能电池板,在相同条件下,采用太阳能自动跟踪装置的太阳能电池板的接收率提高了约40%。%A novel automatic dual-axis tracking solar energy device with the core of Msp430F149 is designed to improve conversion efficiency of the solar panel .The solar energy device can make solar panel always vertical to the sunlight at sunny day .Otherwise , the clock model will be used .The device is of high conversion efficiency and low cost .The experiment indicates that compared with the device that the solar panel is fixed ,the new device can improve the efficiency by 40% in a day under the same condition .

  20. 一种新型多焊点滚焊装置%New Seam Welding Device for Automatic Multiple solder Join

    Institute of Scientific and Technical Information of China (English)

    黄和平

    2012-01-01

    介绍了一种新型多焊点全自动滚焊装置的结构、原理和工作过程,对其取得的效果和应用价值进行了评析.该设备结构简单,投资成本低,易实现自动化的高速精密连续点焊,证明了多焊点由单点焊改为滚焊的经济可靠性和可行性,具备一定的推广价值,并在工程上得到良好的应用.%The structure, principle and operation process of a new seam welding device for automatic multiple solder joint are Introduced mainly. Moreover, the effects and application of the device are also analyzed. The device structure is simple, the investment cost is low, and it is easy to achieve automated high-precision welding. The experiment proves that it Is eoonomy, reliable and feasible to change single spot of mutti-sold-er joins into the roll welding. The promotional value exists in the new deuice and It can be widely applied in engineering.

  1. Occupational self-coding and automatic recording (OSCAR): a novel web-based tool to collect and code lifetime job histories in large population-based studies.

    Science.gov (United States)

    De Matteis, Sara; Jarvis, Deborah; Young, Heather; Young, Alan; Allen, Naomi; Potts, James; Darnton, Andrew; Rushton, Lesley; Cullinan, Paul

    2017-03-01

    Objectives The standard approach to the assessment of occupational exposures is through the manual collection and coding of job histories. This method is time-consuming and costly and makes it potentially unfeasible to perform high quality analyses on occupational exposures in large population-based studies. Our aim was to develop a novel, efficient web-based tool to collect and code lifetime job histories in the UK Biobank, a population-based cohort of over 500 000 participants. Methods We developed OSCAR (occupations self-coding automatic recording) based on the hierarchical structure of the UK Standard Occupational Classification (SOC) 2000, which allows individuals to collect and automatically code their lifetime job histories via a simple decision-tree model. Participants were asked to find each of their jobs by selecting appropriate job categories until they identified their job title, which was linked to a hidden 4-digit SOC code. For each occupation a job title in free text was also collected to estimate Cohen's kappa (κ) inter-rater agreement between SOC codes assigned by OSCAR and an expert manual coder. Results OSCAR was administered to 324 653 UK Biobank participants with an existing email address between June and September 2015. Complete 4-digit SOC-coded lifetime job histories were collected for 108 784 participants (response rate: 34%). Agreement between the 4-digit SOC codes assigned by OSCAR and the manual coder for a random sample of 400 job titles was moderately good [κ=0.45, 95% confidence interval (95% CI) 0.42-0.49], and improved when broader job categories were considered (κ=0.64, 95% CI 0.61-0.69 at a 1-digit SOC-code level). Conclusions OSCAR is a novel, efficient, and reasonably reliable web-based tool for collecting and automatically coding lifetime job histories in large population-based studies. Further application in other research projects for external validation purposes is warranted.

  2. Digital automatic gain control

    Science.gov (United States)

    Uzdy, Z.

    1980-01-01

    Performance analysis, used to evaluated fitness of several circuits to digital automatic gain control (AGC), indicates that digital integrator employing coherent amplitude detector (CAD) is best device suited for application. Circuit reduces gain error to half that of conventional analog AGC while making it possible to automatically modify response of receiver to match incoming signal conditions.

  3. Automatic recognition of T and teleseismic P waves by statistical analysis of their spectra: An application to continuous records of moored hydrophones

    Science.gov (United States)

    Sukhovich, Alexey; Irisson, Jean-Olivier; Perrot, Julie; Nolet, Guust

    2014-08-01

    A network of moored hydrophones is an effective way of monitoring seismicity of oceanic ridges since it allows detection and localization of underwater events by recording generated T waves. The high cost of ship time necessitates long periods (normally a year) of autonomous functioning of the hydrophones, which results in very large data sets. The preliminary but indispensable part of the data analysis consists of identifying all T wave signals. This process is extremely time consuming if it is done by a human operator who visually examines the entire database. We propose a new method for automatic signal discrimination based on the Gradient Boosted Decision Trees technique that uses the distribution of signal spectral power among different frequency bands as the discriminating characteristic. We have applied this method to automatically identify the types of acoustic signals in data collected by two moored hydrophones in the North Atlantic. We show that the method is capable of efficiently resolving the signals of seismic origin with a small percentage of wrong identifications and missed events: 1.2% and 0.5% for T waves and 14.5% and 2.8% for teleseismic P waves, respectively. In addition, good identification rates for signals of other types (iceberg and ship generated) are obtained. Our results indicate that the method can be successfully applied to automate the analysis of other (not necessarily acoustic) databases provided that enough information is available to describe statistical properties of the signals to be identified.

  4. Adaptive system for automatic stabilization of the power factor for electric drives of separation device by means of serially connected capacitors bank

    Science.gov (United States)

    Borisevich, V. D.; Juromskiy, V. M.

    2016-09-01

    A method for designing adaptive systems for automatic extremum search to stabilize the power factor of local electric power system of electric is considered. It consists in application of the serially connected capacitors compensating the reactive component of the total electric power of in parallel connected centrifugal machines usually called as an aggregate. Operation of the system just demands measuring voltage at the output of the static frequency converter for electric drives. The proposed control system is designed to stabilize the power factor close to unity in a case of alteration of parameters of a separation cascade or a single separation device in an aggregate. Such system can be operated continuously or connected occasionally depending on a technological situation. In addition, it totally excludes the phenomenon of overcompensation.

  5. Design of Automatic Solar Photovoltaic Power Generation Device%全自动光伏发电装置的设计

    Institute of Scientific and Technical Information of China (English)

    周天沛

    2011-01-01

    This paper introduces an automatic following system which takes DS 1302 and AT89S51 as the core. The stepper motor is controlled by using the method of the comparison of photoresistors, and by using the stepper motor to drive the biaxial mechanical tracking system to assure the solar panels vertical to the solar incident angle, thus improve the conversion efficiency of the solar energy. Everyday the device can return the initial sitting after tracking, and in the second day,it will continue track automatically to remove the accumulative error. The results show that the device generates more electricity than the fixed photovoltaic system continuously during the period of the experiment and its total power production is approximately 3.12 times of the latter. The anticipative targets is reached. It has widespread applicable potentialities.%设计了一套以DS1302和AT89S51单片机为核心的全自动跟踪光伏发电装置,采用光敏电阻比较法对步进电机进行控制,并利用步进电机驱动双轴机械驱动定位系统,使太阳能电池板始终垂直于太阳入射角,从而提高太阳能的转换效率.该装置能够在每天跟踪结束后自动回到初始位置,第二天继续自动跟踪,从而消除积累误差.实验证明,该装置在测量时段内的发电量始终明显大于固定光伏系统,是后者的3.12倍,达到预期的性能指标,具有广泛的应用潜力.

  6. Development of an implantable wireless ECoG 128ch recording device for clinical brain machine interface.

    Science.gov (United States)

    Matsushita, Kojiro; Hirata, Masayuki; Suzuki, Takafumi; Ando, Hiroshi; Ota, Yuki; Sato, Fumihiro; Morris, Shyne; Yoshida, Takeshi; Matsuki, Hidetoshi; Yoshimine, Toshiki

    2013-01-01

    Brain Machine Interface (BMI) is a system that assumes user's intention by analyzing user's brain activities and control devices with the assumed intention. It is considered as one of prospective tools to enhance paralyzed patients' quality of life. In our group, we especially focus on ECoG (electro-corti-gram)-BMI, which requires surgery to place electrodes on the cortex. We try to implant all the devices within the patient's head and abdomen and to transmit the data and power wirelessly. Our device consists of 5 parts: (1) High-density multi-electrodes with a 3D shaped sheet fitting to the individual brain surface to effectively record the ECoG signals; (2) A small circuit board with two integrated circuit chips functioning 128 [ch] analogue amplifiers and A/D converters for ECoG signals; (3) A Wifi data communication & control circuit with the target PC; (4) A non-contact power supply transmitting electrical power minimum 400[mW] to the device 20[mm] away. We developed those devices, integrated them, and, investigated the performance.

  7. Automatic identification of type 2 diabetes, hypertension, ischaemic heart disease, heart failure and their levels of severity from Italian General Practitioners' electronic medical records: a validation study

    Science.gov (United States)

    Schuemie, Martijn J; Mazzaglia, Giampiero; Lapi, Francesco; Francesconi, Paolo; Pasqua, Alessandro; Bianchini, Elisa; Montalbano, Carmelo; Roberto, Giuseppe; Barletta, Valentina; Cricelli, Iacopo; Cricelli, Claudio; Dal Co, Giulia; Bellentani, Mariadonata; Sturkenboom, Miriam; Klazinga, Niek

    2016-01-01

    Objectives The Italian project MATRICE aimed to assess how well cases of type 2 diabetes (T2DM), hypertension, ischaemic heart disease (IHD) and heart failure (HF) and their levels of severity can be automatically extracted from the Health Search/CSD Longitudinal Patient Database (HSD). From the medical records of the general practitioners (GP) who volunteered to participate, cases were extracted by algorithms based on diagnosis codes, keywords, drug prescriptions and results of diagnostic tests. A random sample of identified cases was validated by interviewing their GPs. Setting HSD is a database of primary care medical records. A panel of 12 GPs participated in this validation study. Participants 300 patients were sampled for each disease, except for HF, where 243 patients were assessed. Outcome measures The positive predictive value (PPV) was assessed for the presence/absence of each condition against the GP's response to the questionnaire, and Cohen's κ was calculated for agreement on the severity level. Results The PPV was 100% (99% to 100%) for T2DM and hypertension, 98% (96% to 100%) for IHD and 55% (49% to 61%) for HF. Cohen's kappa for agreement on the severity level was 0.70 for T2DM and 0.69 for hypertension and IHD. Conclusions This study shows that individuals with T2DM, hypertension or IHD can be validly identified in HSD by automated identification algorithms. Automatic queries for levels of severity of the same diseases compare well with the corresponding clinical definitions, but some misclassification occurs. For HF, further research is needed to refine the current algorithm. PMID:27940627

  8. Fabricating thin-film photovoltaic devices using ultra-sonic spray-coating (Presentation Recording)

    Science.gov (United States)

    Lidzey, David G.

    2015-10-01

    The scale-up of thin-film electronic devices requires a manufacture tool set that is capable of fabricating thin films at high speed over large areas. One such technique capable of such a task is ultra-sonic spray coating. Here, a target solution is fed onto a vibrating tip that breaks the solution up into very fine droplets, with such droplets being carried to a surface by a gas stream. Such ultra-sonic coating processes are already widely used in Electronics, Medical and Displays industries to create films having excellent smoothness and homogeneity. In this talk, I describe the use of ultra-sonic spray-coating to deposit a range of materials for thin-film optoelectronics. As our spray-coating system operates in air, it was first necessary to explore the relative sensitivity of various conjugated polymer / fullerene blends to an air-based process route. It is found that carbazole based co-polymers are particularly stable, and can be processed in air (by spin-coating) into organic photovoltaic devices (OPV) without any apparent loss in device efficiency. I then show that spray-coating can be used to deposit a range of semiconductor materials into smooth, thin-films, including PEDOT:PSS, MoOx (from a precursor) and a series of polymer:fullerene blends. Using such a technique, we are able to scale up an array of devices having an area of 7 cm2, and using a PBDTTT-EFT:PC70BM blend, obtain OPVs having a power conversion efficiency (PCE) of 8.7%. I then discuss spray-coating as a method to fabricate photovoltaic devices based on CH3NH3PbI(3-x)Clx perovskite films. Here, by optimization of deposition parameters, devices are created having a PCE of 11.1%.

  9. An externally head-mounted wireless neural recording device for laboratory animal research and possible human clinical use.

    Science.gov (United States)

    Yin, Ming; Li, Hao; Bull, Christopher; Borton, David A; Aceros, Juan; Larson, Lawrence; Nurmikko, Arto V

    2013-01-01

    In this paper we present a new type of head-mounted wireless neural recording device in a highly compact package, dedicated for untethered laboratory animal research and designed for future mobile human clinical use. The device, which takes its input from an array of intracortical microelectrode arrays (MEA) has ninety-seven broadband parallel neural recording channels and was integrated on to two custom designed printed circuit boards. These house several low power, custom integrated circuits, including a preamplifier ASIC, a controller ASIC, plus two SAR ADCs, a 3-axis accelerometer, a 48MHz clock source, and a Manchester encoder. Another ultralow power RF chip supports an OOK transmitter with the center frequency tunable from 3GHz to 4GHz, mounted on a separate low loss dielectric board together with a 3V LDO, with output fed to a UWB chip antenna. The IC boards were interconnected and packaged in a polyether ether ketone (PEEK) enclosure which is compatible with both animal and human use (e.g. sterilizable). The entire system consumes 17mA from a 1.2Ahr 3.6V Li-SOCl2 1/2AA battery, which operates the device for more than 2 days. The overall system includes a custom RF receiver electronics which are designed to directly interface with any number of commercial (or custom) neural signal processors for multi-channel broadband neural recording. Bench-top measurements and in vivo testing of the device in rhesus macaques are presented to demonstrate the performance of the wireless neural interface.

  10. Visualization of Whole-Night Sleep EEG From 2-Channel Mobile Recording Device Reveals Distinct Deep Sleep Stages with Differential Electrodermal Activity.

    Science.gov (United States)

    Onton, Julie A; Kang, Dae Y; Coleman, Todd P

    2016-01-01

    Brain activity during sleep is a powerful marker of overall health, but sleep lab testing is prohibitively expensive and only indicated for major sleep disorders. This report demonstrates that mobile 2-channel in-home electroencephalogram (EEG) recording devices provided sufficient information to detect and visualize sleep EEG. Displaying whole-night sleep EEG in a spectral display allowed for quick assessment of general sleep stability, cycle lengths, stage lengths, dominant frequencies and other indices of sleep quality. By visualizing spectral data down to 0.1 Hz, a differentiation emerged between slow-wave sleep with dominant frequency between 0.1-1 Hz or 1-3 Hz, but rarely both. Thus, we present here the new designations, Hi and Lo Deep sleep, according to the frequency range with dominant power. Simultaneously recorded electrodermal activity (EDA) was primarily associated with Lo Deep and very rarely with Hi Deep or any other stage. Therefore, Hi and Lo Deep sleep appear to be physiologically distinct states that may serve unique functions during sleep. We developed an algorithm to classify five stages (Awake, Light, Hi Deep, Lo Deep and rapid eye movement (REM)) using a Hidden Markov Model (HMM), model fitting with the expectation-maximization (EM) algorithm, and estimation of the most likely sleep state sequence by the Viterbi algorithm. The resulting automatically generated sleep hypnogram can help clinicians interpret the spectral display and help researchers computationally quantify sleep stages across participants. In conclusion, this study demonstrates the feasibility of in-home sleep EEG collection, a rapid and informative sleep report format, and novel deep sleep designations accounting for spectral and physiological differences.

  11. Visualization of Whole-Night Sleep EEG From 2-Channel Mobile Recording Device Reveals Distinct Deep Sleep Stages With Differential Electrodermal Activity

    Directory of Open Access Journals (Sweden)

    Julie A Onton

    2016-11-01

    Full Text Available Brain activity during sleep is powerful marker of overall health, but sleep lab testing is prohibitively expensive and only indicated for major sleep disorders. This report demonstrates that mobile 2-channel in-home electroencephalogram (EEG recording devices provided sufficient information to detect and visualize sleep EEG. Displaying whole-night sleep EEG in a spectral display allowed for quick assessment of general sleep stability, cycle lengths, stage lengths, dominant frequencies, and other indices of sleep quality. By visualizing spectral data down to 0.1 Hz, a differentiation emerged between slow-wave sleep with dominant frequency between 0.1─1 Hz or 1─3 Hz, but rarely both. Thus, we present here the new designations, Hi and Lo Deep sleep, according to the frequency range with dominant power. Simultaneously recorded electrodermal activity (EDA was primarily associated with Lo Deep and very rarely with Hi Deep or any other stage. Therefore, Hi and Lo Deep sleep appear to be physiologically distinct states that may serve unique functions during sleep. We developed an algorithm to classify 5 stages (Awake, Light, Hi Deep, Lo Deep, and REM using a Hidden Markov Model, model fitting with the expectation-maximization algorithm, and estimation of the most likely sleep state sequence by the Viterbi algorithm. The resulting automatically generated sleep hypnogram can help clinicians interpret the spectral display and help researchers computationally quantify sleep stages across participants. In conclusion, this study demonstrates the feasibility of in-home sleep EEG collection, a rapid and informative sleep report format, and novel deep sleep designations accounting for spectral and physiological differences.

  12. Transcap: A new integrated hybrid supercapacitor and electrolyte-gated transistor device (Presentation Recording)

    Science.gov (United States)

    Santato, Clara

    2015-10-01

    The boom in multifunctional, flexible, and portable electronics and the increasing need of low-energy cost and autonomy for applications ranging from wireless sensor networks for smart environments to biomedical applications are triggering research efforts towards the development of self-powered sustainable electronic devices. Within this context, the coupling of electronic devices (e.g. sensors, transistors) with small size energy storage systems (e.g. micro-batteries or micro-supercapacitors) is actively pursued. Micro-electrochemical supercapacitors are attracting much attention in electronics for their capability of delivering short power pulses with high stability over repeated charge/discharge cycling. For their high specific pseudocapacitance, electronically conducting polymers are well known as positive materials for hybrid supercapacitors featuring high surface carbon negative electrodes. The processability of both polymer and carbon is of great relevance for the development of flexible miniaturised devices. Electronically conducting polymers are even well known to feature an electronic conductivity that depends on their oxidation (p-doped state) and that it is modulated by the polymer potential. This property and the related pseudocapacitive response make polymer very attracting channel materials for electrolyte-gated (EG) transistors. Here, we propose a novel concept of "Trans-capacitor", an integrated device that exhibits the storage properties of a polymer/carbon hybrid supercapacitor and the low-voltage operation of an electrolyte-gated transistor.

  13. Chronic cortical and electromyographic recordings from a fully implantable device: preclinical experience in a nonhuman primate

    Science.gov (United States)

    Ryapolova-Webb, Elena; Afshar, Pedram; Stanslaski, Scott; Denison, Tim; de Hemptinne, Coralie; Bankiewicz, Krystof; Starr, Philip A.

    2014-02-01

    Objective. Analysis of intra- and perioperatively recorded cortical and basal ganglia local field potentials in human movement disorders has provided great insight into the pathophysiology of diseases such as Parkinson's, dystonia, and essential tremor. However, in order to better understand the network abnormalities and effects of chronic therapeutic stimulation in these disorders, long-term recording from a fully implantable data collection system is needed. Approach. A fully implantable investigational data collection system, the Activa® PC + S neurostimulator (Medtronic, Inc., Minneapolis, MN), has been developed for human use. Here, we tested its utility for extended intracranial recording in the motor system of a nonhuman primate. The system was attached to two quadripolar paddle arrays: one covering sensorimotor cortex, and one covering a proximal forelimb muscle, to study simultaneous cortical field potentials and electromyography during spontaneous transitions from rest to movement. Main results. Over 24 months of recording, movement-related changes in physiologically relevant frequency bands were readily detected, including beta and gamma signals at approximately 2.5 μV/\\sqrtHz and 0.7 μV/\\sqrt{Hz}, respectively. The system architecture allowed for flexible recording configurations and algorithm triggered data recording. In the course of physiological analyses, sensing artifacts were observed (˜1 μVrms stationary tones at fixed frequency), which were mitigated either with post-processing or algorithm design and did not impact the scientific conclusions. Histological examination revealed no underlying tissue damage; however, a fibrous capsule had developed around the paddles, demonstrating a potential mechanism for the observed signal amplitude reduction. Significance. This study establishes the usefulness of this system in measuring chronic brain and muscle signals. Use of this system may potentially be valuable in human trials of chronic brain

  14. 汽车自动行驶装置设计%Design of vehicle automatic driving device

    Institute of Scientific and Technical Information of China (English)

    吴小邦

    2012-01-01

    The control of fire engines automatically traveling, mainly related to the key technologies of the steering, gear, brake and clutch control,its organization has used the machinery integration type or the air operated integration types of control,may be installed near the gear shift box in the vehicle and the bottom of the cab outside the narrow space. Use fire engine gas source and apply the pneumatic control localization,can be easy debugging and maintenance-free. Use single-power control solenoid valve, can be done for vehicles when it meet unexpected power outages,the every cylinder can be back to its original position.%对消防车自动行驶的控制,主要涉及转向、排挡、刹车和离合器控制等关键技术,其机构均采用机械集成式或气动集成控制形式,可安装在车辆的换挡箱附近、驾驶室外底部狭小空间;利用消防车的气源,应用气动控制定位,使调试更加方便、免维护;采用单电控电磁阀能确保在车辆意外断电时各气缸回复至原位.

  15. Appropriate threshold levels of cardiac beat-to-beat variation in semi-automatic analysis of equine ECG recordings

    DEFF Research Database (Denmark)

    Madsen, Mette Flethøj; Kanters, Jørgen K.; Pedersen, Philip Juul

    2016-01-01

    Background: Although premature beats are a matter of concern in horses, the interpretation of equine ECG recordings is complicated by a lack of standardized analysis criteria and a limited knowledge of the normal beat-to-beat variation of equine cardiac rhythm. The purpose of this study was to de......Background: Although premature beats are a matter of concern in horses, the interpretation of equine ECG recordings is complicated by a lack of standardized analysis criteria and a limited knowledge of the normal beat-to-beat variation of equine cardiac rhythm. The purpose of this study...... was to determine the appropriate threshold levels of maximum acceptable deviation of RR intervals in equine ECG analysis, and to evaluate a novel two-step timing algorithm by quantifying the frequency of arrhythmias in a cohort of healthy adult endurance horses. Results: Beat-to-beat variation differed......, range 1–24). Conclusions: Beat-to-beat variation of equine cardiac rhythm varies according to HR, and threshold levels in equine ECG analysis should be adjusted accordingly. Standardization of the analysis criteria will enable comparisons of studies and follow-up examinations of patients. A small number...

  16. Study and Design on Device of Egg Automatic Collection%自动集蛋装置的研究与设计

    Institute of Scientific and Technical Information of China (English)

    李彦蓉; 王爱民; 张海云

    2014-01-01

    This paper described the significance and importance of the aquaculture industry automation .The structure and working principle of the mechanical system and control system were introduced in detail .The screw pair and two hy-draulic cylinders were chosen in the drive system , and 89 C51 microcontroller and stepper motors were used in the control system .Coordination of the entire device ensured accurate position of the egg collection device and automatic collection for the eggs at different heights .%简述了养殖业自动化的意义及重要性,详细介绍了自动集蛋装置机械系统和控制系统的结构组成及工作原理。自动集蛋装置的传动系统采用螺旋副及二级液压缸,控制系统采用89 C51单片机和步进电机。整套装置工作协调,实现了集蛋装置的准确定位以及不同高度鸡蛋的自动收集。

  17. Short communication: Influence of the sampling device on somatic cell count variation in cow milk samples (by official recording)

    Energy Technology Data Exchange (ETDEWEB)

    Fouz, R.; Vilar, M.J.; Yus, E.; Sanjuán, M.L.; Diéguez, F.J.

    2016-11-01

    The objective of this study was to investigate the variability in cow´s milk somatic cell counts (SCC) depending on the type of milk meter used by dairy farms for official milk recording. The study was performed in 2011 and 2012 in the major cattle area of Spain. In total, 137,846 lactations of Holstein-Friesian cows were analysed at 1,912 farms. A generalised least squares regression model was used for data analysis. The model showed that the milk meter had a substantial effect on the SCC for individual milk samples obtained for official milk recording. The results suggested an overestimation of the SCC in milk samples from farms that had electronic devices in comparison with farms that used portable devices and underestimation when volumetric meters are used. A weak positive correlation was observed between the SCC and the percentage of fat in individual milk samples. The results underline the importance of considering this variable when using SCC data from milk recording in the dairy herd improvement program or in quality milk programs. (Author)

  18. Influence of the sampling device on somatic cell count variation in cow milk samples (by official recording

    Directory of Open Access Journals (Sweden)

    María J. Vilar

    2016-03-01

    Full Text Available The objective of this study was to investigate the variability in cow´s milk somatic cell counts (SCC depending on the type of milk meter used by dairy farms for official milk recording. The study was performed in 2011 and 2012 in the major cattle area of Spain. In total, 137,846 lactations of Holstein-Friesian cows were analysed at 1,912 farms. A generalised least squares regression model was used for data analysis. The model showed that the milk meter had a substantial effect on the SCC for individual milk samples obtained for official milk recording. The results suggested an overestimation of the SCC in milk samples from farms that had electronic devices in comparison with farms that used portable devices and underestimation when volumetric meters are used. A weak positive correlation was observed between the SCC and the percentage of fat in individual milk samples. The results underline the importance of considering this variable when using SCC data from milk recording in the dairy herd improvement program or in quality milk programs.

  19. Control device for automatic orientation of a solar panel based on a microcontroller (PIC16f628a)

    Science.gov (United States)

    Rezoug, M. R.; Krama, A.

    2016-07-01

    This work proposes a control device for autonomous solar tracker based on one axis, It consists of two main parts; the control part which is based on "the PIC16f628a"; it has the role of controlling, measuring and plotting responses. The second part is a mechanical device, which has the role of making the solar panel follows the day-night change of the sun throughout the year. Both parties are established to improve energy generation of the photovoltaic panels. In this paper, we will explain the main operating principles of our system. Also, we will provide experimental results which demonstrate the good performance and the efficiency of this system. This innovation is different from what has been proposed in previous studies. The important points of this system are maximum output energy and minimum energy consumption of solar tracker, its cost is relatively low with simplicity in implementation. The average power increase produced by using the tracking system for a particular day, is over 30 % compared with the static panel.

  20. Determination of dithiocarbamate pesticides in occupational hygiene sampling devices using the isooctane method and comparison with an automatic thermal desorption (ATD) method.

    Science.gov (United States)

    Coldwell, Matthew R; Pengelly, Ian; Rimmer, Duncan A

    2003-01-10

    Two new methods for the determination of dithiocarbamate pesticides in occupational hygiene sampling devices are described. Dithiocarbamate spiked occupational hygiene sampling devices, consisting of glass fibre (GF/A) filters, cotton pads, cotton gloves and disposable overalls, were reduced under acidic conditions and the CS2 evolved as a decomposition product was extracted into isooctane. The isooctane was then analysed using gas chromatography with mass spectrometry, for CS2, which provided a quantitative result for dithiocarbamates. Recoveries obtained were generally within a 70-110% range and reproducibilities better than 15% RSD were typically achieved. The method has been successfully applied to samples collected during occupational exposure surveys. A second method employing automatic thermal desorption-gas chromatography-mass spectrometry (ATD-GC-MS) has also been developed and applied to the direct analysis of GF/A (airborne) samples. The method relies on the thermal degradation of dithiocarbamates to release CS2, which is used to quantify the analytes. Thiram spiked GF/A filters gave an average recovery of 107% with an RSD of 4%. The performance of the two analytical methods were directly compared by analysing sub-portions of GF/A filters collected during a survey to evaluate occupational exposures to thiram during seed treatment operations. Both methods performed well for the analysis of airborne (GF/A) samples and produced results in good agreement. ATD-GC-MS is the preferred method for studies involving GF/A (airborne) samples only. Because of the wider applicability of the isooctane method for other sampling devices, it is the preferred choice when carrying out surveys which require a dermal as well as respirable exposure assessment.

  1. Automatic de-identification of electronic medical records using token-level and character-level conditional random fields.

    Science.gov (United States)

    Liu, Zengjian; Chen, Yangxin; Tang, Buzhou; Wang, Xiaolong; Chen, Qingcai; Li, Haodi; Wang, Jingfeng; Deng, Qiwen; Zhu, Suisong

    2015-12-01

    De-identification, identifying and removing all protected health information (PHI) present in clinical data including electronic medical records (EMRs), is a critical step in making clinical data publicly available. The 2014 i2b2 (Center of Informatics for Integrating Biology and Bedside) clinical natural language processing (NLP) challenge sets up a track for de-identification (track 1). In this study, we propose a hybrid system based on both machine learning and rule approaches for the de-identification track. In our system, PHI instances are first identified by two (token-level and character-level) conditional random fields (CRFs) and a rule-based classifier, and then are merged by some rules. Experiments conducted on the i2b2 corpus show that our system submitted for the challenge achieves the highest micro F-scores of 94.64%, 91.24% and 91.63% under the "token", "strict" and "relaxed" criteria respectively, which is among top-ranked systems of the 2014 i2b2 challenge. After integrating some refined localization dictionaries, our system is further improved with F-scores of 94.83%, 91.57% and 91.95% under the "token", "strict" and "relaxed" criteria respectively.

  2. 自动气象站异常记录分析及处理方法%Analysis and Treatment of Abnormal Recording Method of Automatic Weather Stations

    Institute of Scientific and Technical Information of China (English)

    张梅

    2015-01-01

    According to the “standard meteorological observation”, “surface meteorological observation system software operation manual” and relevant technical regulations, some problems were presented at automatic weather stations, problems such as great wind and wind time missing caused by operational software, the duplication unloading of J file data when the collector was switched off and abnormal records when the sensor was replaced. In this paper, these problems are analyzed and addressed. Their relevant processing methods are introduced for the reference of professionals dealing with detection work so as to improve the quality of meteorological data of automatic weather stations and ensure the accuracy, continuity and data integrity.%根据中国气象局《地面气象观测规范》、《地面气象测报业务系统软件操作手册》及有关技术规定,就自动气象站出现的由业务软件导致极大风和最大风时间缺测、采集器关闭时J文件数据重复卸载、传感器更换时出现异常记录等问题进行重点分析,并提出相关处理方法,供广大探测业务人员参考,以期提高自动气象站气象数据质量,确保观测资料的准确性、连续性、完整性。

  3. Automatic identification of artifacts in electrodermal activity data.

    Science.gov (United States)

    Taylor, Sara; Jaques, Natasha; Chen, Weixuan; Fedor, Szymon; Sano, Akane; Picard, Rosalind

    2015-01-01

    Recently, wearable devices have allowed for long term, ambulatory measurement of electrodermal activity (EDA). Despite the fact that ambulatory recording can be noisy, and recording artifacts can easily be mistaken for a physiological response during analysis, to date there is no automatic method for detecting artifacts. This paper describes the development of a machine learning algorithm for automatically detecting EDA artifacts, and provides an empirical evaluation of classification performance. We have encoded our results into a freely available web-based tool for artifact and peak detection.

  4. Automatic Control Design of Rust Removing Device for Pipe End%管端除锈设备自动控制设计

    Institute of Scientific and Technical Information of China (English)

    李建明; 邓志伟; 付雪强; 张世平; 江渊; 魏耀华

    2012-01-01

    In this article, it introduced the structure and functions of a new kind of SAW pipe end rust removing device, and expounded its working principle. At the same time, the full-automatic control technology of rust removing was designed based on SIEMENS S7-200 PLC. The productive practice proved that this automatic control design increased production efficiency, reduced failure rate and work labor cost, avoided unstable factors of manual operation, and realized stable rust removing quality.lt was in favour of HSE field management, and simple maintenance. Meanwhile, it avoided base metal scratch, increased rust removing quality. So it is applicable to widely promote in SAWH pipe industry.%介绍了一种新型螺旋埋弧焊管管端除锈设备的构造和功能,阐述了其工作原理,并基于西门子S7-200 PLC设计了除锈设备的全自动控制工艺.经过实际生产应用证明,管端除锈设备的自动控制设计提高了工作效率,维修、维护方便,故障率降低,更有利于HSE现场管理,避免了人工操作的不稳定因素,降低了劳动力成本,保证了管端除锈质量的稳定,同时,避免了母材划伤,提高了除锈质量,在同行业中具有很好的推广应用价值.

  5. Text mining electronic hospital records to automatically classify admissions against disease: Measuring the impact of linking data sources.

    Science.gov (United States)

    Kocbek, Simon; Cavedon, Lawrence; Martinez, David; Bain, Christopher; Manus, Chris Mac; Haffari, Gholamreza; Zukerman, Ingrid; Verspoor, Karin

    2016-12-01

    Text and data mining play an important role in obtaining insights from Health and Hospital Information Systems. This paper presents a text mining system for detecting admissions marked as positive for several diseases: Lung Cancer, Breast Cancer, Colon Cancer, Secondary Malignant Neoplasm of Respiratory and Digestive Organs, Multiple Myeloma and Malignant Plasma Cell Neoplasms, Pneumonia, and Pulmonary Embolism. We specifically examine the effect of linking multiple data sources on text classification performance. Support Vector Machine classifiers are built for eight data source combinations, and evaluated using the metrics of Precision, Recall and F-Score. Sub-sampling techniques are used to address unbalanced datasets of medical records. We use radiology reports as an initial data source and add other sources, such as pathology reports and patient and hospital admission data, in order to assess the research question regarding the impact of the value of multiple data sources. Statistical significance is measured using the Wilcoxon signed-rank test. A second set of experiments explores aspects of the system in greater depth, focusing on Lung Cancer. We explore the impact of feature selection; analyse the learning curve; examine the effect of restricting admissions to only those containing reports from all data sources; and examine the impact of reducing the sub-sampling. These experiments provide better understanding of how to best apply text classification in the context of imbalanced data of variable completeness. Radiology questions plus patient and hospital admission data contribute valuable information for detecting most of the diseases, significantly improving performance when added to radiology reports alone or to the combination of radiology and pathology reports. Overall, linking data sources significantly improved classification performance for all the diseases examined. However, there is no single approach that suits all scenarios; the choice of the

  6. Efficient inverted organic light-emitting devices by amine-based solvent treatment (Presentation Recording)

    Science.gov (United States)

    Song, Myoung Hoon; Choi, Kyoung-Jin; Jung, Eui Dae

    2015-10-01

    The efficiency of inverted polymer light-emitting diodes (iPLEDs) were remarkably enhanced by introducing spontaneously formed ripple-shaped nanostructure of ZnO (ZnO-R) and amine-based polar solvent treatment using 2-methoxyethanol and ethanolamine (2-ME+EA) co-solvents on ZnO-R. The ripple-shape nanostructure of ZnO layer fabricated by solution process with optimal rate of annealing temperature improves the extraction of wave guide modes inside the device structure, and 2-ME+EA interlayer enhances the electron injection and hole blocking and reduces exciton quenching between polar solvent treated ZnO-R and emissive layer. As a result, our optimized iPLEDs show the luminous efficiency (LE) of 61.6 cd A-1, power efficiency (PE) of 19.4 lm W-1 and external quantum efficiency (EQE) of 17.8 %. This method provides a promising method, and opens new possibilities for not only organic light-emitting diodes (OLEDs) but also other organic optoelectronic devices such as organic photovoltaics, organic thin film transistors, and electrically driven organic diode laser.

  7. Automatic de-identification of textual documents in the electronic health record: a review of recent research

    Directory of Open Access Journals (Sweden)

    South Brett R

    2010-08-01

    Full Text Available Abstract Background In the United States, the Health Insurance Portability and Accountability Act (HIPAA protects the confidentiality of patient data and requires the informed consent of the patient and approval of the Internal Review Board to use data for research purposes, but these requirements can be waived if data is de-identified. For clinical data to be considered de-identified, the HIPAA "Safe Harbor" technique requires 18 data elements (called PHI: Protected Health Information to be removed. The de-identification of narrative text documents is often realized manually, and requires significant resources. Well aware of these issues, several authors have investigated automated de-identification of narrative text documents from the electronic health record, and a review of recent research in this domain is presented here. Methods This review focuses on recently published research (after 1995, and includes relevant publications from bibliographic queries in PubMed, conference proceedings, the ACM Digital Library, and interesting publications referenced in already included papers. Results The literature search returned more than 200 publications. The majority focused only on structured data de-identification instead of narrative text, on image de-identification, or described manual de-identification, and were therefore excluded. Finally, 18 publications describing automated text de-identification were selected for detailed analysis of the architecture and methods used, the types of PHI detected and removed, the external resources used, and the types of clinical documents targeted. All text de-identification systems aimed to identify and remove person names, and many included other types of PHI. Most systems used only one or two specific clinical document types, and were mostly based on two different groups of methodologies: pattern matching and machine learning. Many systems combined both approaches for different types of PHI, but the

  8. Achievement of a record electron temperature for a magnetic mirror device

    CERN Document Server

    Bagryansky, P A; Lizunov, A A; Maximov, V V; Prikhodko, V V; Shalashov, A G; Soldatkina, E I; Solomakhin, A L; Yakovlev, D V

    2014-01-01

    We demonstrate plasma discharges with extremely high temperature of bulk electrons at the large axially symmetric magnetic mirror device GDT (Budker Institute, Novosibirsk). According to Thomson scattering measurements, the on-axis electron temperature averaged over several sequential shots is 660 $\\pm$ 50 eV with peak values exceeding 900 eV in few shots. This corresponds to at least threefold increase as compared to previous experiments both at the GDT and at other comparable machines, thus demonstrating the maximum quasi-stationary (~1 ms) electron temperature achieved in open traps. The breakthrough is made possible with application of sophisticated electron cyclotron resonance heating in addition to standard heating by neutral beams. The reported increase of the electron temperature along with previous experiments, which demonstrated high-density plasma confinement with $\\beta\\approx$ 60%, provide a firm basis for extrapolating to fusion relevant applications of open magnetic systems.

  9. Production optimization of 99Mo/99mTc zirconium molybate gel generators at semi-automatic device: DISIGEG.

    Science.gov (United States)

    Monroy-Guzman, F; Rivero Gutiérrez, T; López Malpica, I Z; Hernández Cortes, S; Rojas Nava, P; Vazquez Maldonado, J C; Vazquez, A

    2012-01-01

    DISIGEG is a synthesis installation of zirconium (99)Mo-molybdate gels for (99)Mo/(99m)Tc generator production, which has been designed, built and installed at the ININ. The device consists of a synthesis reactor and five systems controlled via keyboard: (1) raw material access, (2) chemical air stirring, (3) gel dried by air and infrared heating, (4) moisture removal and (5) gel extraction. DISIGEG operation is described and dried condition effects of zirconium (99)Mo- molybdate gels on (99)Mo/(99m)Tc generator performance were evaluated as well as some physical-chemical properties of these gels. The results reveal that temperature, time and air flow applied during the drying process directly affects zirconium (99)Mo-molybdate gel generator performance. All gels prepared have a similar chemical structure probably constituted by three-dimensional network, based on zirconium pentagonal bipyramids and molybdenum octahedral. Basic structural variations cause a change in gel porosity and permeability, favouring or inhibiting (99m)TcO(4)(-) diffusion into the matrix. The (99m)TcO(4)(-) eluates produced by (99)Mo/(99m)Tc zirconium (99)Mo-molybdate gel generators prepared in DISIGEG, air dried at 80°C for 5h and using an air flow of 90mm, satisfied all the Pharmacopoeias regulations: (99m)Tc yield between 70-75%, (99)Mo breakthrough less than 3×10(-3)%, radiochemical purities about 97% sterile and pyrogen-free eluates with a pH of 6.

  10. Devices used by automated milking systems are similarly accurate in estimating milk yield and in collecting a representative milk sample compared with devices used by farms with conventional milk recording

    NARCIS (Netherlands)

    Kamphuis, Claudia; Dela Rue, B.; Turner, S.A.; Petch, S.

    2015-01-01

    Information on accuracy of milk-sampling devices used on farms with automated milking systems (AMS) is essential for development of milk recording protocols. The hypotheses of this study were (1) devices used by AMS units are similarly accurate in estimating milk yield and in collecting

  11. A regenerative microchannel device for recording multiple single-unit action potentials in awake, ambulatory animals.

    Science.gov (United States)

    Srinivasan, Akhil; Tipton, John; Tahilramani, Mayank; Kharbouch, Adel; Gaupp, Eric; Song, Chao; Venkataraman, Poornima; Falcone, Jessica; Lacour, Stéphanie P; Stanley, Garrett B; English, Arthur W; Bellamkonda, Ravi V

    2016-02-01

    Despite significant advances in robotics, commercially advanced prosthetics provide only a small fraction of the functionality of the amputated limb that they are meant to replace. Peripheral nerve interfacing could provide a rich controlling link between the body and these advanced prosthetics in order to increase their overall utility. Here, we report on the development of a fully integrated regenerative microchannel interface with 30 microelectrodes and signal extraction capabilities enabling evaluation in an awake and ambulatory rat animal model. In vitro functional testing validated the capability of the microelectrodes to record neural signals similar in size and nature to those that occur in vivo. In vitro dorsal root ganglia cultures revealed striking cytocompatibility of the microchannel interface. Finally, in vivo, the microchannel interface was successfully used to record a multitude of single-unit action potentials through 63% of the integrated microelectrodes at the early time point of 3 weeks. This marks a significant advance in microchannel interfacing, demonstrating the capability of microchannels to be used for peripheral nerve interfacing.

  12. Study on a Kind of Automatic Glass Cleaning Device%一种自动清洗玻璃装置的研究

    Institute of Scientific and Technical Information of China (English)

    王灿; 施泓博; 孙长范

    2016-01-01

    A device is introduced that makes the cleaning of glass more automatic and that has certain security and higher cleaning efficiency. The research adopts a method of combining the traditional mechanical process and automation control. The method uses action parts that the crawler combined with sucker and cleaning components that can clean followed with blow the dust. The results of the study can avoid some existent drawbacks such as the imperfection of automation, the absence of safety and cleaning efficiency. According to the research results, the design of the device is feasible and innovative after the 3D modeling and model design and production.%本文介绍了一种能让清洁玻璃更加自动化,同时又具有一定的安全性和较高的清洁效率的装置,所做的研究采用把传统机械工艺和自动化控制相结合的方法,采用履带结合吸盘的行动部件,擦洗和吹尘并存的清洁部件,该研究的结果规避了不能完全实现自动化,安全性能低,清洁效率低这些现存的缺点。在经过3D建模和模型设计及制作后,根据研究成果表明,该装置的设计是可行且具有创新性的。

  13. Development and characterization of thermally stable electro-optic polymers and devices (Presentation Recording)

    Science.gov (United States)

    Otomo, Akira; Aoki, Isao; Yamada, Chiyumi; Yamada, Toshiki

    2015-10-01

    Electro-optic (EO) polymers are key materials for next generation optical communications not only in wide area network but also in local area and storage area network because EO polymer modulator can be operated at fast speed more than 100 GHz with low energy consumption and can be miniaturized in combination with silicon photonics. In practical applications, thermal stability is one of the important issues to be considered for developing EO polymers. Since EO activity of the polymer is proportional to dipole orientation factor of the EO moieties, electric field assisted poling around glass transition temperature (Tg) of the polymer is necessary. However, the poled order of the molecules relaxes gradually at finite temperature, and then EO activity decreases after long period of time. We have successfully developed thermally stable EO polymers that have high-Tg up to 180 °C. They show excellent thermal stability with the Telcordia thermal test. Thermal stability is also characterized by thermally stimulated depolarization current (TSDC) measurement. Analyzing the TSDC, we can estimate the activation energy and relaxation time of polarization at any temperature. We will discuss thermal stability of the high-Tg EO polymers and devices.

  14. 无动力燃煤除尘器自动控制装置%Dust-Free Coal-Fired No Power Automatic Control Device

    Institute of Scientific and Technical Information of China (English)

    何晶; 周兵

    2011-01-01

    This paper describes the working principle of automatic dust-free coal-fired no power control device.It uses LF356 opamp and metal electrode to design the wet and dry detection circuit, time relay、 relay、 moisture control circuit, SCM、TCL0832 A / D converter、 AT24C16 data memory、 MAX813 watchdog timer intelligent controller.The design method of various parts of hardware and software are described in detail.%介绍了无动力燃煤除尘器自动控制装置工作原理,采用LF356运算放大器和金属电极设计干湿检测电路;时间继电器、继电器、电磁阀设计湿润控制电路;单片机、TCL0832 A/D转换器、AT24C16数据存储器、MAX813看门狗定时器设计智能控制仪.详细阐述了各部分的硬件和软件设计方法.

  15. Gantry-type Automatic Sheet Discharge Device Based on Mirror Making Production Line%基于制镜生产线的龙门式自动放片设备

    Institute of Scientific and Technical Information of China (English)

    刘增喜; 张金镌

    2014-01-01

    This paper introduces a full-automatic sheet-unload device,which is specially designed for mirror making production line and adapts to float glass unload way and unload the original glass sheet with gripping surface upward. Automatic sheet discharge can be easily realized for this device with the aid of glass holder containing original glass sheet.Compared with manipulator-type automatic device,this device has the advantages of simple structure,conven-ient operation,simple maintenance and relatively low cost.%该文介绍了一款为制镜线专门设计、能够适应浮法玻璃收片方式、能将玻璃原板抓取面朝上的全自动功能放片设备。这款设备在盛放玻璃原板的玻璃架等设备辅助下可以轻易实现自动化放片,相比机械手类的自动化设备结构简单,操作方便,维护保养简单,造价相对较低。

  16. Automatic Traffic Recorder (ATR) Stations

    Data.gov (United States)

    Department of Homeland Security — The data included in the GIS Traffic Stations Version database have been assimilated from station description files provided by FHWA for Weigh-in-Motion (WIM), and...

  17. Production optimization of {sup 99}Mo/{sup 99m}Tc zirconium molybate gel generators at semi-automatic device: DISIGEG

    Energy Technology Data Exchange (ETDEWEB)

    Monroy-Guzman, F., E-mail: fabiola.monroy@inin.gob.mx [Instituto Nacional de Investigaciones Nucleares, Carretera Mexico-Toluca S/N, La Marquesa, Ocoyoacac, 52750, Estado de Mexico (Mexico); Rivero Gutierrez, T., E-mail: tonatiuh.rivero@inin.gob.mx [Instituto Nacional de Investigaciones Nucleares, Carretera Mexico-Toluca S/N, La Marquesa, Ocoyoacac, 52750, Estado de Mexico (Mexico); Lopez Malpica, I.Z.; Hernandez Cortes, S.; Rojas Nava, P.; Vazquez Maldonado, J.C. [Instituto Nacional de Investigaciones Nucleares, Carretera Mexico-Toluca S/N, La Marquesa, Ocoyoacac, 52750, Estado de Mexico (Mexico); Vazquez, A. [Instituto Mexicano del Petroleo, Eje Central Norte Lazaro Cardenas 152, Col. San Bartolo Atepehuacan, 07730, Mexico D.F. (Mexico)

    2012-01-15

    DISIGEG is a synthesis installation of zirconium {sup 99}Mo-molybdate gels for {sup 99}Mo/{sup 99m}Tc generator production, which has been designed, built and installed at the ININ. The device consists of a synthesis reactor and five systems controlled via keyboard: (1) raw material access, (2) chemical air stirring, (3) gel dried by air and infrared heating, (4) moisture removal and (5) gel extraction. DISIGEG operation is described and dried condition effects of zirconium {sup 99}Mo- molybdate gels on {sup 99}Mo/{sup 99m}Tc generator performance were evaluated as well as some physical-chemical properties of these gels. The results reveal that temperature, time and air flow applied during the drying process directly affects zirconium {sup 99}Mo-molybdate gel generator performance. All gels prepared have a similar chemical structure probably constituted by three-dimensional network, based on zirconium pentagonal bipyramids and molybdenum octahedral. Basic structural variations cause a change in gel porosity and permeability, favouring or inhibiting {sup 99m}TcO{sub 4}{sup -} diffusion into the matrix. The {sup 99m}TcO{sub 4}{sup -} eluates produced by {sup 99}Mo/{sup 99m}Tc zirconium {sup 99}Mo-molybdate gel generators prepared in DISIGEG, air dried at 80 Degree-Sign C for 5 h and using an air flow of 90 mm, satisfied all the Pharmacopoeias regulations: {sup 99m}Tc yield between 70-75%, {sup 99}Mo breakthrough less than 3 Multiplication-Sign 10{sup -3}%, radiochemical purities about 97% sterile and pyrogen-free eluates with a pH of 6. - Highlights: Black-Right-Pointing-Pointer {sup 99}Mo/{sup 99m}Tc generators based on {sup 99}Mo-molybdate gels were synthesized at a semi-automatic device. Black-Right-Pointing-Pointer Generator performances depend on synthesis conditions of the zirconium {sup 99}Mo-molybdate gel. Black-Right-Pointing-Pointer {sup 99m}TcO{sub 4}{sup -} diffusion and yield into generator depends on gel porosity and permeability. Black

  18. Design and experiment of automatic reseeding device for miss-seeding of crops with large grain%大籽粒作物漏播自补种装置设计与试验

    Institute of Scientific and Technical Information of China (English)

    朱瑞祥; 葛世强; 翟长远; 闫小丽; 史岩鹏; 李成鑫; 黄闪闪

    2014-01-01

    The loss sowing phenomenon is common for sowers for crops with large grain. Reseeding and seed-metering devices now available are independent of each other. This method has some problems such as reseeding inaccurately. In order to solve these problems, an automatic reseeding method based on an overrunning clutch was proposed in this paper. An automatic reseeding device that was composed of both a reseeding device and a seed-metering device was designed. The device adopted a hall sensor to get the speed of the seed-metering device. The hall sensor got the time interval between every two seed spoons of the seed-metering device to calculate the real-time speed of the seed-metering device. A laser sensor was used to monitor the loss of seeds. Seeds in the plate of the seed-metering device could block the light propagation path of the laser. If the light propagation path of the laser was not blocked, the seed was lost. An overrunning clutch was used to connect a step motor and the axle of the seed-metering device. The step motor was used to drive the seed-metering device to reseed with high speed. The overrunning clutch is a kind of compound function bearing which transmits torque between the inside hub and outside hub in one direction and allows free overrun in the opposite direction. It was used to switch torque source between the wheels of the seed-metering device and the step motor. The torque source came from the wheels of the seed-metering device when seeding but from the step motor when reseeding. When the laser sensor monitored the loss of seeds, the controller calculated the rotational speed and angle of the step motor based on the real-time speed of seeding and position of the missing seeds. The step motor drove the seed-metering device to reseed with a higher speed than seeding speed. The subsequent seed was added to the vacant position quickly. The system of the automatic reseeding device would give failure warnings to the user if the seed-metering device

  19. Automatic sequences

    CERN Document Server

    Haeseler, Friedrich

    2003-01-01

    Automatic sequences are sequences which are produced by a finite automaton. Although they are not random they may look as being random. They are complicated, in the sense of not being not ultimately periodic, they may look rather complicated, in the sense that it may not be easy to name the rule by which the sequence is generated, however there exists a rule which generates the sequence. The concept automatic sequences has special applications in algebra, number theory, finite automata and formal languages, combinatorics on words. The text deals with different aspects of automatic sequences, in particular:· a general introduction to automatic sequences· the basic (combinatorial) properties of automatic sequences· the algebraic approach to automatic sequences· geometric objects related to automatic sequences.

  20. 增压器全液压自动换向装置及其计算方法%The full-hydraulic automatic reversing device for booster and its calculation methods

    Institute of Scientific and Technical Information of China (English)

    王兴洲; 徐超; 何永森

    2001-01-01

    In order to research into more novel and reliable full-hydraulic automatic reversing device for booster and the methods of parameters calculation related to the reversal frequency of booster, on the basis of discussing super high pressure water jet generators, including the working principle of booster, and making an all-round analysis of the automatic reversing devices for all types of boosters at home and abroad, a classification method of existent automatic reversing device for boosters is put forward. This classification method is definite in concept and helpful to specify the design of thistype devices. A full-hydraulic automatic revesing device, which has many advantages such as specific structure, simplified system, lower noise level, less faults, and so on, is proposed. The experiment has shown that the calculation and the new device used in the design of water jet cutting machines have simplified the structure of water jet generators and improved their reliability. It plays a positive and impellent role in improving the quality of super high pressure water jet cutting machines and in the development of water jet cutting technology.%为了研究更为新颖可靠的增压器全液压自动换向装置和与增压器换向频率有关的参数计算方法,对超高压水射流发生器及增压器的工作原理进行了分析,研制了1种对现行增压器自动换向装置的分类方法及具有结构独特、系统简单、机械噪音小、故障率低等优点的全液压自动换向装置.实验结果表明:该分类方法概念明确,有利于规范此类装置的设计;将计算方法和新装置应用于水射流切割机产品的设计中,简化了水射流发生器结构,提高了其工作的可靠性,对提高超高压水射流切割机产品质量和促进水射流切割技术的发展起到了积极的推动作用.

  1. Automatic alignment device for focal spot measurements in the center of the field for mammography; Sistema automatico de alinhamento para avaliacao do ponto focal no centro do campo de equipamentos mamograficos

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Marcelo A.C.; Watanabe, Alex O.; Oliveira Junior, Paulo D.; Schiabel, Homero [Universidade de Sao Paulo (USP), Sao Carlos, SP (Brazil). Escola de Engenharia. Dept. de Engenharia Eletrica], e-mail: mvieira@sc.usp.br

    2010-03-15

    Some quality control procedures used for mammography, such as focal spot evaluation, requires previous alignment of the measurement equipment with the X-ray central beam. However, alignment procedures are, in general, the most difficult task and the one that needs more time to be performed. Moreover, the operator sometimes is exposed to radiation during this procedure. This work presents an automatic alignment system for mammographic equipment that allows locating the central ray of the radiation beam and, immediately, aligns with it by dislocating itself automatically along the field. The system consists on a bidirectional moving device, connected to a CCD sensor for digital radiographic image acquisition. A computational analysis of a radiographic image, acquired at any position on the field, is performed in order to determine its positioning under the X-ray beam. Finally, a mechanical system for two moving directions, electronically controlled by a microcontroller under USB communication, makes the system to align automatically with the radiation beam central ray. The alignment process is fully automatic, fast and accurate, with no operator exposure to radiation, which allows a considerable time saving for quality control procedures achievement for mammography. (author)

  2. Mobile Digital Recording: Adequacy of the iRig and iOS Device for Acoustic and Perceptual Analysis of Normal Voice.

    Science.gov (United States)

    Oliveira, Gisele; Fava, Gaetano; Baglione, Melody; Pimpinella, Michael

    2017-03-01

    To determine whether the iRig and iOS device recording system is comparable with a standard computer recording system for digital voice recording. Thirty-seven vocally healthy adults, between ages 20 and 62, with a mean age of 33.9 years, 13 males and 24 females, were recruited. Recordings were simultaneously digitalized in an iPad and iPhone using a unidirectional condenser microphone for smartphones/tablets (iRig Mic, IK Multimedia) and in a computer laptop (Dell-Inspiron) using a unidirectional condenser microphone (Samson-CL5) connected to a preamplifier with phantom power. Both microphones were lined up at an equal fixed distance from the subject's mouth. Speech tasks consisted of a sustained vowel "ah" at comfortable pitch/loudness, counting from 1 to 10, and a glissando "ah" from a low to a high note. The samples captured on the iOS devices were transferred via SoundCloud in WAV format, and analyzed using the Praat software. The acoustic parameters measured were mean, min, and max F0, SD F0, jitter local, jitter rap, jitter ppq5, jitter ddp, shimmer local, shimmer local-dB, shimmer apq3, shimmer apq5, shimmer apq11, shimmer dda, NHR, and HNR. There were no statistically significant differences for any parameter and speech task analyzed for both iOS devices as compared with the gold standard computer/preamp system (all P values > 0.050). In addition, there were no statistical differences in the perceptual identification of the recordings among devices (P device may provide reliable digital recording of normal voices. Copyright © 2017 The Voice Foundation. Published by Elsevier Inc. All rights reserved.

  3. Semi-Automatic Post-Processing for Improved Usability of Electure Podcasts

    Science.gov (United States)

    Hurst, Wolfgang; Welte, Martina

    2009-01-01

    Purpose: Playing back recorded lectures on handheld devices offers interesting perspectives for learning, but suffers from small screen sizes. The purpose of this paper is to propose several semi-automatic post-processing steps in order to improve usability by providing a better readability and additional navigation functionality.…

  4. Drinking behavior in nursery pigs: Determining the accuracy between an automatic water meter versus human observers

    Science.gov (United States)

    Assimilating accurate behavioral events over a long period can be labor intensive and relatively expensive. If an automatic device could accurately record the duration and frequency for a given behavioral event, it would be a valuable alternative to the traditional use of human observers for behavio...

  5. 可穿戴设备记录元数据框架设计研究%Designing the Framework of Wearable Devices Recording Metadata

    Institute of Scientific and Technical Information of China (English)

    王芳; 谢志鹏; 祝娜

    2016-01-01

    作为信息采集和服务工具,可穿戴设备记录的数据蕴含着巨大价值。为了促进可穿戴设备数据的管理、保存及应用,本研究通过收集网络数据,分析了可穿戴设备的概念、分类、特点以及目前发展现状。在此基础上,选取目前常见的可穿戴设备作为典型案例,分析了其特性和功能,并对可穿戴设备所记录的各类数据进行归纳和分类整理,最终构建了可穿戴设备记录的元数据框架体系。%As tools of information collection and services, wearable devices have great value in recording data. In order to promote the management, preservation and application of data recorded by wearable devices, this study analyzes the concept, classification, characteristics and current development of wearable devices by collecting data from the internet. On this basis, we selected common wearable devices at present as typical cases, analyzed their features and functions, sorted and categorized various types of data recorded by wearable devices. Finally, we built the Framework of Wearable Devices Recording Metadata.

  6. Automatic Control System for Neutron Laboratory Safety

    Institute of Scientific and Technical Information of China (English)

    ZHAO; Xiao; ZHANG; Guo-guang; FENG; Shu-qiang; SU; Dan; YANG; Guo-zhao; ZHANG; Shuai

    2015-01-01

    In order to cooperate with the experiment of neutron generator,and realize the automatic control in the experiment,a set of automatic control system for the safety of the neutron laboratory is designed.The system block diagram is shown as Fig.1.Automatic control device is for processing switch signal,so PLC is selected as the core component

  7. An Exploration into How Physical Activity Data-Recording Devices Could Be Used in Computer-Supported Data Investigations

    Science.gov (United States)

    Lee, Victor R.; DuMont, Maneksha

    2010-01-01

    There is a great potential opportunity to use portable physical activity monitoring devices as data collection tools for educational purposes. Using one such device, we designed and implemented a weeklong workshop with high school students to test the utility of such technology. During that intervention, students performed data investigations of…

  8. Comparative Analysis of Automatic Bus Transfer Equipment and Service Power Fast Cutting Device%“备自投装置”、“厂用电快切装置”比较分析

    Institute of Scientific and Technical Information of China (English)

    王如平

    2013-01-01

      厂用电切换装置作为电厂厂用电系统的一个重要装置,它的性能好坏对电厂来说尤为重要,本文结合山西阳煤集团发供电分公司第三热电厂实际情况,就微机备自投装置、微机厂用电快切装置进行了全面比较和深入分析。%Auxiliary power switching device as an important unit of the power plant auxiliary power system, it is particularly important for the power plant. Combined with No.3 Thermal Power Plant of Yangquan Coal Industry Group Power Generating and Supplying Company, the paper makes an in-depth comparative analysis on microcomputer automatic bus transfer equipment and microprocessor service power fast cutting device.

  9. The Design of Automatic Filling Device for the Brake Fluid Replacement%基于汽车制动液更换的自动加注装置设计

    Institute of Scientific and Technical Information of China (English)

    杨省云

    2014-01-01

    It introduces the replacement process and matters for needing attention of motor vehicle brake fluid , presents a structure of the pneumatic brake fluid automatic replacement device structure and working principle , and analyses the device development background and technical innovation .%通过对汽车制动液的更换过程和注意事项进行介绍,论述了一种气动汽车制动液自动更换装置的结构组成及工作原理,同时介绍了该装置的研发背景,分析了其技术创新点。

  10. Design of Automatic Switch Device of the Auxiliary Power Supply to a High-Reliability System in Shooting Range%靶场某高可靠系统备用电源自投装置设计

    Institute of Scientific and Technical Information of China (English)

    何吉祥; 李晓波; 张昊

    2012-01-01

    In order to improve the reliability of the power supply and to ensure uninterrupted power supply of shooting range equipment,an automatic switch device of the auxiliary power supply is developed.Firstly,its composition structure and working principles are introduced;the general design thoughts and hardware design methods of the device are described in detail,mainly about the design of power plug-ins,master controller plug-ins,human-computer interaction plug-ins,current and voltage acquisition plug-ins,relay plug-in and human-machine interface plug-ins.Meanwhile software design method of the automatic switch device of the auxiliary power supply is researched;rapid and reliable power supply switching and a concise human-machine interface are realized.At last,the reliability of this device is discussed.%为了提高电源的可靠性,保证靶场设备的不间断供电,研究了一种备用电源自投装置。在介绍其组成结构和工作原理的基础上,对装置的总体设计思想和硬件设计方法进行了详细的描述,主要包括电源插件、主控制器插件、电流和电压采集插件、继电器插件、人机交互插件等关键环节的设计。同时对备用电源自投装置的软件设计方法做了研究,实现了主备电源的快速、可靠切换和简洁的人机界面。最后对该装置的可靠性问题进行了探讨。

  11. 实施PID参数整定提高苯酚丙酮装置自控水平%Tuning of PID Parameters to Improve the Automatic Control Level of Phenol-acetone Device

    Institute of Scientific and Technical Information of China (English)

    张恒

    2012-01-01

    Automatic control level is an important indicator for secure operation and efficient production of petrochemical enterprises production device,which directly impact on energy consumption and product quality.The PID parameters of the control loop decide the use of automatic control in control loop and the usage effect.In order to improve the automation level,Yanshan Petrochemical Company cooperated with Beijing University of Chemical Technology implement PID parameter tuning(according to the controlled variable characteristics,choose appropriate parameters of regulator to obtain the best control effect and ensure the automatic safe operation of control loop) of 41 sets of production device.On this basis,we implement automatic control rate monitor to ensure the PID optimization.This article introduced the application of PID parameters tuning in phenol acetone production device.%自控水平是企业生产装置安稳运行、高效生产的重要指标,直接影响能耗和产品质量。控制回路能否投用自控、投用效果好坏取决于控制回路的PID参数设置,为了提高自控水平,燕山石化公司与北京化工大学合作陆续对41套生产装置实施了PID参数整定(根据被控变量的特性,合理选择调节器的参数,获得最佳的控制效果,确保控制回路自动安稳运行)。在此基础上实施了自控率监控,保证了PID优化成果。本文以此为背景,介绍PID参数整定在苯酚丙酮装置的应用情况。

  12. Design of Automatic LeveIing Device Based on MarIin Firmware Desktop 3D Printer%基于MarIin固件桌面级3D打印机自动调平装置设计

    Institute of Scientific and Technical Information of China (English)

    宗殿栋; 汪地; 李卫成; 姜海龙; 刘谋玉

    2016-01-01

    桌面级3D打印机第一层的打印质量对于打印的成败非常重要,自动调平装置可以保证打印第一层时的打印可靠性,同时可以降低桌面级3D打印机的使用难度。基于桌面级3D打印机使用广泛的开源MarIin固件,在主程序和运动控制方面进行分析,设计了一种新型桌面级3D打印机自动调平装置,与现有自动调平装置相比,具有结构简单、稳定性高,通用性好的优点。%This paper based on a wide range use of open source MarIin firmware,anaIysis this firmware in main program and motion controI.The design of a new type of desktop 3D printer automatic IeveIing device,compared with the existing au-tomatic IeveIing device,with the advantage of a simpIe structure, high stabiIity.

  13. Visualization of Whole-Night Sleep EEG From 2-Channel Mobile Recording Device Reveals Distinct Deep Sleep Stages with Differential Electrodermal Activity

    OpenAIRE

    Onton, Julie A.; Dae Y. Kang; Coleman, Todd P.

    2016-01-01

    Brain activity during sleep is a powerful marker of overall health, but sleep lab testing is prohibitively expensive and only indicated for major sleep disorders. This report demonstrates that mobile 2-channel in-home electroencephalogram (EEG) recording devices provided sufficient information to detect and visualize sleep EEG. Displaying whole-night sleep EEG in a spectral display allowed for quick assessment of general sleep stability, cycle lengths, stage lengths, dominant frequencies and ...

  14. Visualization of Whole-Night Sleep EEG From 2-Channel Mobile Recording Device Reveals Distinct Deep Sleep Stages With Differential Electrodermal Activity

    OpenAIRE

    Onton, Julie A.; Dae Y. Kang; Coleman, Todd P.

    2016-01-01

    Brain activity during sleep is powerful marker of overall health, but sleep lab testing is prohibitively expensive and only indicated for major sleep disorders. This report demonstrates that mobile 2-channel in-home electroencephalogram (EEG) recording devices provided sufficient information to detect and visualize sleep EEG. Displaying whole-night sleep EEG in a spectral display allowed for quick assessment of general sleep stability, cycle lengths, stage lengths, dominant frequencies, and o...

  15. A High-Speed Continuous Recording High Flow Gas Sampler for Measuring Methane Emissions from Pneumatic Devices at Oil and Natural Gas Production Facilities

    Science.gov (United States)

    Ferrara, T.; Howard, T. M.

    2016-12-01

    Studies attempting to reconcile facility level emission estimates of sources at oil and gas facilities with basin wide methane flux measurements have had limited success. Pneumatic devices are commonly used at oil and gas production facilities for process control or liquid pumping. These devices are powered by pressurized natural gas from the well, so they are known methane sources at these sites. Pneumatic devices are estimated to contribute 14% to 25% of the total greenhouse gas emissions (GHG) from production facilities. Measurements of pneumatic devices have shown that malfunctioning or poorly maintained control systems may be emitting significantly more methane than currently estimated. Emission inventories for these facilities use emission factors from EPA that are based on pneumatic device measurements made in the early 1990's. Recent studies of methane emissions from production facilities have attempted to measure emissions from pneumatic devices by several different methods. These methods have had limitations including alteration of the system being measured, the inability to distinguish between leaks and venting during normal operation, or insufficient response time to account of the time based emission events. We have developed a high speed recording high flow sampler that is capable of measuring the transient emissions from pneumatic devices. This sampler is based on the well-established high flow measurement technique used in oil and gas for quantifying component leak rates. In this paper we present the results of extensive laboratory controlled release testing. Additionally, test data from several field studies where this sampler has been used to measure pneumatic device emissions will be presented.

  16. The future of the perfusion record: automated data collection vs. manual recording.

    Science.gov (United States)

    Ottens, Jane; Baker, Robert A; Newland, Richard F; Mazzone, Annette

    2005-12-01

    The perfusion record, whether manually recorded or computer generated, is a legal representation of the procedure. The handwritten perfusion record has been the most common method of recording events that occur during cardiopulmonary bypass. This record is of significant contrast to the integrated data management systems available that provide continuous collection of data automatically or by means of a few keystrokes. Additionally, an increasing number of monitoring devices are available to assist in the management of patients on bypass. These devices are becoming more complex and provide more data for the perfusionist to monitor and record. Most of the data from these can be downloaded automatically into online data management systems, allowing more time for the perfusionist to concentrate on the patient while simultaneously producing a more accurate record. In this prospective report, we compared 17 cases that were recorded using both manual and electronic data collection techniques. The perfusionist in charge of the case recorded the perfusion using the manual technique while a second perfusionist entered relevant events on the electronic record generated by the Stockert S3 Data Management System/Data Bahn (Munich, Germany). Analysis of the two types of perfusion records showed significant variations in the recorded information. Areas that showed the most inconsistency included measurement of the perfusion pressures, flow, blood temperatures, cardioplegia delivery details, and the recording of events, with the electronic record superior in the integrity of the data. In addition, the limitations of the electronic system were also shown by the lack of electronic gas flow data in our hardware. Our results confirm the importance of accurate methods of recording of perfusion events. The use of an automated system provides the opportunity to minimize transcription error and bias. This study highlights the limitation of spot recording of perfusion events in the

  17. Comparative Study between Sequential Automatic and Manual Home Respiratory Polygraphy Scoring Using a Three-Channel Device: Impact of the Manual Editing of Events to Identify Severe Obstructive Sleep Apnea

    Directory of Open Access Journals (Sweden)

    Glenda Ernst

    2015-01-01

    Full Text Available Objective. According to current guidelines, autoscoring of respiratory events in respiratory polygraphy requires manual scoring. The aim of this study was to evaluate the agreement between automatic analysis and manual scoring to identify patients with suspected OSA. Methods. This retrospective study analyzed 791 records from respiratory polygraphy (RP performed at home. The association grade between automatic scoring and manual scoring was evaluated using Kappa coefficient and the agreement using Bland and Altman test and intraclass correlation coefficient (CCI. To determine the accuracy in the identification of AHI≥30 eV/h, the ROC curve analysis was used. Results. The population analyzed consisted of 493 male (62.3% and 298 female patients, with an average age of 54.7±14.20 years and BMI of 32.7±8.21 kg/m2. There was no significant difference between automatic and manual apnea/hypopnea indexes (aAHI, mAHI: aAHI 17.25 (SD: 17.42 versus mAHI 21.20±7.96 (p; NS. The agreement between mAHI and aAHI to AHI≥30 was 94%, with a Kappa coefficient of 0.83 (p<0.001 and a CCI of 0.83. The AUC-ROC, sensitivity, and specificity were 0.99 (CI 95%: 0.98-0.99, p<0.001, 86% (CI 95%: 78.7–91.4, and 97% (CI 95%: 96–98.3, respectively. Conclusions. We observed good agreement between automatic scoring and sequential manual scoring to identify subjects with AHI≥30 eV/h.

  18. Development of Energy-saving and Adjustable Automatic Proportioning Device of Emulsion Concentration%节能型配比可调的乳化液质量分数自动配比装置研制

    Institute of Scientific and Technical Information of China (English)

    赵四海; 曲继鹏; 颜斌; 刘志强

    2012-01-01

    分析了现有的乳化液质量分数自动配比技术,研制了一种容积式、节能型、质量分数配比连续可调的乳化液自动配比装置.该装置以井下压力自来水为动力源,以高精度的椭圆齿轮马达为流量一转速转换元件,同时也是整个装置的动力元件,通过机械传动机构与变量油泵联接,调节变量泵的排量即可改变配制乳化液的体积分数.该装置已在许多煤矿投入使用,实现了预期的功能.%The known methods of automatic supervisory system of emulsion proportioning were analyzed, and a kind of automatic proportioning device with positive displacement and energy-saving and continuously variable was developed. In this device, the high-pressure water in coal mine was used as power source, and the high-accuracy elliptical gear motor was used as flow/speed conversion element and dynamic components for the whole device as well. Through coupling between the mechanical transmission system and variable pump, die concentration of configurable emulsion could be changed by adjusting the variable pump emissions. This equipment has been used in many coal mines and anticipated function is realized.

  19. Solution-processed low dimensional nanomaterials with self-assembled polymers for flexible photo-electronic devices (Presentation Recording)

    Science.gov (United States)

    Park, Cheolmin

    2015-09-01

    Self assembly driven by complicated but systematic hierarchical interactions offers a qualified alternative for fabricating functional micron or nanometer scale pattern structures that have been potentially useful for various organic and nanotechnological devices. Self assembled nanostructures generated from synthetic polymer systems such as controlled polymer blends, semi-crystalline polymers and block copolymers have gained a great attention not only because of the variety of nanostructures they can evolve but also because of the controllability of these structures by external stimuli. In this presentation, various novel photo-electronic materials and devices are introduced based on the solution-processed low dimensional nanomaterials such as networked carbon nanotubes (CNTs), reduced graphene oxides (rGOs) and 2 dimensional transition metal dichalcogenides (TMDs) with self assembled polymers including field effect transistor, electroluminescent device, non-volatile memory and photodetector. For instance, a nanocomposite of networked CNTs and a fluorescent polymer turned out an efficient field induced electroluminescent layer under alternating current (AC) as a potential candidate for next generation displays and lightings. Furthermore, scalable and simple strategies employed for fabricating rGO as well as TMD nanohybrid films allowed for high performance and mechanically flexible non-volatile resistive polymer memory devices and broad band photo-detectors, respectively.

  20. Rational material, interface, and device engineering for high-performance polymer and perovskite solar cells (Presentation Recording)

    Science.gov (United States)

    Jen, Alex K.

    2015-10-01

    The performance of polymer and hybrid solar cells is also strongly dependent on their efficiency in harvesting light, exciton dissociation, charge transport, and charge collection at the metal/organic/metal oxide or the metal/perovskite/metal oxide interfaces. Our laboratory employs a molecular engineering approach to develop processible low band-gap polymers with high charge carrier mobility that can enhance power conversion efficiency of the single junction solar cells to values as high as ~11%. We have also developed several innovative strategies to modify the interface of bulk-heterojunction devices and create new device architectures to fully explore their potential for solar applications. In this talk, the integrated approach of combining material design, interface, and device engineering to significantly improve the performance of polymer and hybrid perovskite photovoltaic cells will be discussed. Specific emphasis will be placed on the development of low band-gap polymers with reduced reorganizational energy and proper energy levels, formation of optimized morphology of active layer, and minimized interfacial energy barriers using functional conductive surfactants. At the end, several new device architectures and optical engineering strategies to make tandem cells and semitransparent solar cells will be discussed to explore the full promise of polymer and perovskite hybrid solar cells.

  1. 箱梁钢筋定位自动检测装置%The automatic detection device for box girder reinforced positioning

    Institute of Scientific and Technical Information of China (English)

    邵云

    2014-01-01

    In order to reduce or eliminate the box girder quality oroblems caused by box girder reinforced orotection layer and ore-stressed oosi-tioning network reinforced deformation and installation not in olace,this oaoer researched the reinforced oositioning of reinforced orotective layer and ore-stressed oositioning network in oost tensioned ore-stressed box beam construction orocess,designed a set of automatic detection each ten-sioned oositioning detection ooint tensioned whether accuracy oositioning or not and disolayed the tensioned oositioning automatic detection de-vice,solved the oroblem of reinforced oositioning detection.%为了减少或消除因箱梁钢筋保护层及预应力定位网钢筋形变和安装不到位而引起箱梁质量问题,对后张法预应力箱梁施工工艺中的钢筋保护层及预应力定位网的钢筋定位进行了研究,设计了一套能自动检测各检测点钢筋是否定位准确并显示的钢筋定位自动检测装置,解决了钢筋定位检测的问题。

  2. Study on Influence of Distributed Small Hydropower on Automatic Control Device of Distribution Network%分布式小水电对配电网自动控制装置的影响研究

    Institute of Scientific and Technical Information of China (English)

    邹浩斌

    2012-01-01

      Qualitative and simulation analysis is conducted aiming at the impact of the distributed small hydropower access power distribution system on network automatic control device, and the solution is discussed. The results show that the distributed access of small hydropower changes the topology structure and trend direction of the distribution network, when some path generates instantaneous failure, coincidence failure of automatic reclosing can be caused, thereby generating continuous power-cut, when the system fails to generate power-down, the standby cast device can generate error movement or refused movement due to the supporting effect of the small hydropower unit strong excitation on the bus voltage. Through analysis and study, the technology improvement measures capable of adapting to distribution network automatic reclosing and standby casting devices with distributed smallhydropowerareproposed, thereby improving the security, stability and power supply reliability of the power grid.%  针对分布式小水电接入配电系统对网络自动控制装置的影响进行了定性和仿真分析,并讨论了解决方法。结果表明,分布式小水电的接入改变了配电网的拓扑结构和潮流方向,当某段线路发生瞬时性故障时会引起自动重合闸的重合失败而导致停电延续;当系统发生故障掉电时,备自投装置则因小水电机组强励对母线电压的支撑作用而发生误动或拒动。通过分析研究,提出了能够适应有分布式小水电存在的配电网自动重合闸及备自投装置的技术改进措施,以提高电网的安全稳定性和供电可靠性。

  3. 基于全景温度场的电力设备在线自动识别与诊断%Online Automatic Recognition and Diagnosis of Electrical Devices via Thermal Panorama

    Institute of Scientific and Technical Information of China (English)

    吕俊; 王福田; 汤进; 罗斌

    2015-01-01

    Aiming at solving the problem of online automatic recognition and thermal diagnosis of electrical devices, this paper proposes an online automatic device recognition and diagnosis method based on the stitched thermal panorama.Firstly, we collect some thermal infrared images of the scene and stitch them based on SIFT to construct the thermal panorama in an offline fashion. The categories of devices in the scene are further manually annotated.Secondly, given a thermal image captured online, we locate and identify the devices of this thermal image by utilizing the feature matching algorithm, and then effectively diagnose these de-vices based on their categories.Finally, experiments on the real substation scenarios demonstrate the effectiveness and practica-bility of the proposed approach.%为了解决在线自动识别电力设备并进行相应热故障诊断问题,提出一种基于全景温度场的变电站设备在线自动识别与诊断方法。首先,离线采集若干变电站的红外热像,通过基于SIFT特征的图像拼接方法对这些热像进行拼接,构建变电站全景温度场,并手动标注全景温度场中的设备。其次,对于一幅在线的包含特定设备的热红外热像,在已构建的全景温度场中通过特征匹配的方式自动定位该设备,进而有效地对设备进行识别,然后依据设备类型自动诊断热故障的发生。最后,在真实的变电站场景中进行实验,验证了本文方法的有效性和实用性。

  4. Evaluating the potential of the Otto® Wildlife GPS device to record roadside moose and deer locations for use in wildlife vehicle collision mitigation planning

    Directory of Open Access Journals (Sweden)

    Gayle Hesse

    2010-06-01

    Full Text Available Wildlife vehicle collisions present a serious challenge to road safety. Although spatially accurate wildlife collision data is necessary to identify areas where wildlife vehicle collisions are recurrent, global positioning system technology has seldom been operationally used to mark roadkilled carcass or roadside live animal points of interest. We modified an existing global positioning system based device (Otto-Driving Companion® to record roadside live sightings and carcass locations of deer (Odocoileus spp. and moose (Alces alces in northern British Columbia, Canada and assess the operational feasibility of the device to quickly and reliably collect data. Ten modified Otto-Driving Companion® units were installed in commercial semi-trailer trucks and roadside points of interest were recorded between July 2006 and May 2007. The device was straightforward to install and operate, and functioned proficiently for data collection. Data transfers from the units to the researchers were simple and fast. Maps showing live sighting and carcass points of interest were easily created from the data. While methodologies remain to be developed to normalise the data and minimise temporal biases arising from non systematic data collection, the modified Otto-Driving Companion® demonstrated it is well suited to the collection of roadside wildlife points of interest for a variety of operational and research purposes.

  5. A Wireless Framework for Lecturers' Attendance System with Automatic Vehicle Identification (AVI Technology

    Directory of Open Access Journals (Sweden)

    Emammer Khamis Shafter

    2015-10-01

    Full Text Available Automatic Vehicle Identification (AVI technology is one type of Radio Frequency Identification (RFID method which can be used to significantly improve the efficiency of lecturers' attendance system. It provides the capability of automatic data capture for attendance records using mobile device equipped in users’ vehicle. The intent of this article is to propose a framework for automatic lecturers' attendance system using AVI technology. The first objective of this work involves gathering of requirements for Automatic Lecturers' Attendance System and to represent them using UML diagrams. The second objective is to put forward a framework that will provide guidelines for developing the system. A prototype has also been created as a pilot project.

  6. Technical and clinical analysis of microEEG: a miniature wireless EEG device designed to record high-quality EEG in the emergency department.

    Science.gov (United States)

    Omurtag, Ahmet; Baki, Samah G Abdel; Chari, Geetha; Cracco, Roger Q; Zehtabchi, Shahriar; Fenton, André A; Grant, Arthur C

    2012-09-24

    We describe and characterize the performance of microEEG compared to that of a commercially available and widely used clinical EEG machine. microEEG is a portable, battery-operated, wireless EEG device, developed by Bio-Signal Group to overcome the obstacles to routine use of EEG in emergency departments (EDs). The microEEG was used to obtain EEGs from healthy volunteers in the EEG laboratory and ED. The standard system was used to obtain EEGs from healthy volunteers in the EEG laboratory, and studies recorded from patients in the ED or ICU were also used for comparison. In one experiment, a signal splitter was used to record simultaneous microEEG and standard EEG from the same electrodes. EEG signal analysis techniques indicated good agreement between microEEG and the standard system in 66 EEGs recorded in the EEG laboratory and the ED. In the simultaneous recording the microEEG and standard system signals differed only in a smaller amount of 60 Hz noise in the microEEG signal. In a blinded review by a board-certified clinical neurophysiologist, differences in technical quality or interpretability were insignificant between standard recordings in the EEG laboratory and microEEG recordings from standard or electrode cap electrodes in the ED or EEG laboratory. The microEEG data recording characteristics such as analog-to-digital conversion resolution (16 bits), input impedance (>100MΩ), and common-mode rejection ratio (85 dB) are similar to those of commercially available systems, although the microEEG is many times smaller (88 g and 9.4 × 4.4 × 3.8 cm). Our results suggest that the technical qualities of microEEG are non-inferior to a standard commercially available EEG recording device. EEG in the ED is an unmet medical need due to space and time constraints, high levels of ambient electrical noise, and the cost of 24/7 EEG technologist availability. This study suggests that using microEEG with an electrode cap that can be applied easily and quickly can

  7. Review of automatic renal biopsy device under Truguide needle guided in 178 patients%使用同轴穿刺引导针肾穿刺活检178例体会

    Institute of Scientific and Technical Information of China (English)

    张晶晶; 刘桂凌; 郝丽; 姜凡; 解翔; 王德光

    2013-01-01

    Automatic renal biopsy device under Truguide needle guided were performed on 178 patients with nephropathy, Renal biopsies were successfully performed totally, and mean numbers of glomerulus were ( 18. 0 ± 1.1) per patient. And there was no prominent incidence of complications. The method has the advantages in easy manipulation, higher successful rate and lower incidence of complications.%在B超实时定位下,使用同轴穿刺引导针对178例患者肾脏穿刺活检,穿刺顺利,平均肾小球(18.0±7.7)个,全部获得成功,无明显并发症.结果 表明在超声实时定位下,使用同轴穿刺引导针行经皮肾穿刺活检是一种安全、有效的方法.

  8. Mechanoluminescence Recording Device Integrated with Photosensitive Material and Europium-Doped SrAl2O4

    Science.gov (United States)

    Terasaki, Nao; Xu, Chao-Nan

    2009-04-01

    An accumulative and integrative mechanoluminescence recording system consisting of a mechanoluminescent (ML) material and a photosensitive material was successfully demonstrated. The ML material developed in our laboratory is the world's first light-emitting material for practical use with the application of stress in the elastic deformation region, and we can detect an area of concentrated stress on a measurement object using our ML material. For practical use of such a material, there are many information requirements, such as the size of the stress, its location, frequency, especially stress accumulation from the viewpoints of safety maintenance and reliability. In this system, the ML sheet (aluminum foil coated with ML paint including europium-doped strontium aluminate) was used as a stress detector and an emission unit and a commercial picture film was used as the accumulative and integrative photorecording materials, respectively. Using the ML recording system, the applied stress was successfully recorded onto the picture film accumulatively via the mechanoluminescence from the ML sheet, and the recorded intensity increased with increasing time and number of stress applications.

  9. An SCM Control-based Design of Automatic Feeding Device in Punching Machine%基于单片机控制的冲压机床自动供料装置设计

    Institute of Scientific and Technical Information of China (English)

    甄久军; 杨战民; 孙勇震

    2012-01-01

    This paper provides a mechanical body design for automatic feeding device (AFD) and the control scheme based on SCM. The AFD takes the movements of the plunger chip as a power source, by the slider mechanism and the ratchet pawl mechanism, and re- alizes the circumrotated-intermission feeding mode. SCM automatically performs the functions of cutting down time of the power of the machine tool motor, counting the supplies and warning of short supplies. The device supports the punching machine to work continuous- ly, can greatly increase productivity and extend the life of the punching machine brake belt, while avoiding the workers' hands directly into the die stamping workspace security incidents that may arise.%提供了自动送料装置的机械本体设计和单片机的控制方案。自动送料装置采用冲压机床冲头的上下运动作为动力源,通过滑块机构、棘轮棘爪机构,实现冲头的上下运动到棘轮水平回转一间歇送料方式。单片机控制实现自动切断机床电机电源停机、供料计数、缺料报警等功能。该装置支持冲压机床连续工作,可大大提高生产率并延长冲压机床制动皮带的寿命,同时避免了工人手部直接进入模具冲压工作区而可能出现的安全事故。

  10. 110kV变电站备用电源自动切换装置应用试验%Application Test on Automatic Switching Device for Standby Power of 110 kV Substation

    Institute of Scientific and Technical Information of China (English)

    张晋滨

    2015-01-01

    The power supply mode of on-load automatic switching standby power is that the on-load automatic switching standby power works as the power supply in case of the breakdown of common power source to avoid the large-scale blackout and improve the power supply reliability and quality .Fast switchover device plays an important part in the power supply system ,whose switching success rate is essential to high-efficiency opera‐tion of the power supply system .By introducing the working principle of fast switchover mode ,the paper em‐phasizes its advantages over several other power switching modes and reaches the conclusion that the application of fast switchover device can better guarantee the normal operation of power supply system .%备用电源带负荷自动切换供电方式是:在常用电源故障失电的情况下,可以通过备用电源带负荷自动切换作为电源,避免全站(所)失电造成大面积的停电,从整体上提高供电可靠性,改善供电质量,从而确保矿井安全供电。快切装置是供电系统中的重要装置,本文介绍了快切装置的工作原理,得出了将快切装置运用于供电系统中可以更好地保证系统正常运行这一结论。

  11. 交流综自保护装置的位置信号异常分析与改进%Analysis of abnormal position signal of AC integrated automatic protection device and improvement

    Institute of Scientific and Technical Information of China (English)

    曾庆汇; 胡志保

    2012-01-01

    The abnormal position signal of an AC integrated automatic protection device for HV switch cabinet during site test is investigated and it is found that the high potential between wires of AC circuit cable induced by the nearby power supply cables causes the abnormality. Three countermeasures are proposed and compared: DC integrated automatic protection device, wall hanging type power supply and separated inter-lock circuit cable. The separated inter-lock circuit cable is designed and implemented, and there is no any abnormality during the operation for about one year,showing its effectiveness. Suggestions are also provided in the type selection and design of secondary cables.%针对一起高压开关柜采用交流综自保护装置,在传动试验时出现跳合闸位置信号灯异常的现象进行了调查,发现是由于交流回路的电缆芯之间在相近电源的电缆芯线排列紧密时会产生很高的感应电势造成的.提出了采用直流综自保护装置、壁挂式电源、互锁回路电缆分开设计的3种解决方案,分析了3种方案的优缺点及性价比.对互锁回路电缆分开设计及实施后,对其进行了近一年的运行跟踪统计,没有出现异常,证明了该方案的有效性.并对二次电缆选型、设计提出了建议.

  12. Variations in automatically recorded rumination time as explained by variations in intake of dietary fractions and milk production, and between-cow variation

    DEFF Research Database (Denmark)

    Byskov, Malene Vesterager; Nadeau, E.; Johansson, B. E. O.

    2015-01-01

    could be explained by variations in intakes of the dietary fractions, whereas 48% of the total variation in RT was accounted for by individual variations between cows. Intakes of forage NDF and starch were positively related to daily RT, whereas intakes of sugar and the rest fraction were negatively......Individual recording of rumination time (RT) is now possible in commercial dairy herds, through development of a microphone-based sensor, which is able to record RT by the sound of rumination activity. The objectives of this study were to examine the relationship between daily RT and intakes...... of different dietary fractions, the relationship between RT in minutes per kilogram of dry matter intake (DMI) and milk production, and to examine the variation in RT within and between mid-lactating dairy cows. Data from 3 production trials were used in which a total of 27 different diets were fed. The data...

  13. Full-band structure modeling of the radiative and non-radiative properties of semiconductor materials and devices (Presentation Recording)

    Science.gov (United States)

    Bellotti, Enrico; Wen, Hanqing; Pinkie, Benjamin; Matsubara, Masahiko; Bertazzi, Francesco

    2015-08-01

    Understanding the radiative and non-radiative properties of semiconductor materials is a prerequisite for optimizing the performance of existing light emitters and detectors and for developing new device architectures based on novel materials. Due to the ever increasing complexity of novel semiconductor systems and their relative technological immaturity, it is essential to have design tools and simulation strategies that include the details of the microscopic physics and their dependence on the macroscopic (continuum) variables in the macroscopic device models. Towards this end, we have developed a robust full-band structure based approach that can be used to study the intrinsic material radiative and non-radiative properties and evaluate the same characteristics of low-dimensional device structures. A parallel effort is being carried out to model the effect of substrate driven stress/strain and material quality (dislocations and defects) on microscopic quantities such as non-radiative recombination rate. Using this modeling approach, we have extensively studied the radiative and non-radiative properties of both elemental (Si and Ge) and compound semiconductors (HgCdTe, InGaAs, InAsSb and InGaN). In this work we outline the details of the modelling approach, specifically the challenges and advantages related to the use of the full-band description of the material electronic structure. We will present a detailed comparison of the radiative and Auger recombination rates as a function of temperature and doping for HgCdTe and InAsSb that are two important materials for infrared detectors and emitters. Furthermore we will discuss the role of non-radiatiave Auger recombination processes in explaining the performance of light emitter diodes. Finally we will present the extension of the model to low dimensional structures employed in a number of light emitter and detector structures.

  14. StyletChip: a microfluidic device for recording host invasion behaviour and feeding of plant parasitic nematodes.

    Science.gov (United States)

    Hu, Chunxiao; Kearn, James; Urwin, Peter; Lilley, Catherine; O' Connor, Vincent; Holden-Dye, Lindy; Morgan, Hywel

    2014-07-21

    Plant parasitic nematodes (PPNs) infest the roots of crops and cause global losses with a severe economic impact on food production. Current chemical control agents are being removed from use due to environmental and toxicity concerns and there is a need for new approaches to crop protection. A key feature of parasitic behaviour for the majority of PPNs is a hollow stomastyle or odontostyle required for interaction with the host plant and feeding. This lance-like microscopic structure, often called a stylet, protrudes from the mouth of the worm and thrusts in a rhythmic manner to stab the host root. Studying stylet activity presents technical challenges and as a consequence the underlying biology is poorly understood. We have addressed this by designing a microfluidic chip which traps the PPN Globodera pallida and permits the recording of an electrophysiological signal concomitant with stylet thrusting. The PDMS chip incorporates a precisely designed aperture to trap the nematode securely around a mid-point of its body. It is fabricated using a novel combination of conventional photolithography and two photon polymerization. The chip incorporates valves for rapid application of test compounds and integral electrodes to facilitate acquisition of electrical signals. We show that stylet thrusting can be induced by controlled application of 5-HT (serotonin) to the worm. Each thrust and retraction produces an electrical waveform that characterises the physiological activity associated with the worm's behaviour. The ability to reproducibly record the stylet activity of PPNs provides a new platform for nematicide screening that specifically focuses on a behaviour that is integral to the parasite host interaction. This is the first report of a microfluidic chip capable of electrophysiological recording from nematodes other than Caenorhabditis elegans. The unique approach is optimised for trapping and recording from smaller worms or worms with distinct anterior body shapes

  15. Automatic Reading

    Institute of Scientific and Technical Information of China (English)

    胡迪

    2007-01-01

    <正>Reading is the key to school success and,like any skill,it takes practice.A child learns to walk by practising until he no longer has to think about how to put one foot in front of the other.The great athlete practises until he can play quickly,accurately and without thinking.Ed- ucators call it automaticity.

  16. Design on Remote Auto Measurement and Control Device of Date Recorder%远程自动数据记录器测控装置设计

    Institute of Scientific and Technical Information of China (English)

    李京蔓; 张彦军

    2013-01-01

    At present, there still are three deficiencies for the auto measurement and control device of data recorder , no monitoring function or low monitoring capacity; low reliability of instructions that are controlled by upper computer software in the monitoring process and monitoring distance is short. The three issues, describe the design of the remote auto measurement and control device of rocket data recorder in detail are focused on.%目前数据记录器自动测控装置存在无监测或监测能力低、监测过程中上位机软指令可靠性低、监测距离短等不足.围绕这三个问题详细介绍了远程自动数据记录器测控装置的设计.此系统已配合弹载数据记录器应用于某发射试验中,完成了对弹载数据记录器的记录及监测及数据回读.

  17. 从网站中自动挖掘数据记录的算法%Algorithms of mining data records from website automatically

    Institute of Scientific and Technical Information of China (English)

    邱勇; 兰永杰

    2006-01-01

    In order to improve the accuracy and integrality of mining data records from the web,the concepts of isomorphic page and directory page and three algorithms are proposed.An isomorphic web page is a set of web pages that have uniform structure,only differing in main information.A web page which contains many links that link to isomorphic web pages is called a directory page.Algorithm 1 can find directory web pages in a web using adjacent links similar analysis method.It first sorts the link,and then counts the links in each directory.If the count is greater than a given valve then finds the similar sub-page links in the directory and gives the results.A function for an isomorphic web page judgment is also proposed.Algorithm 2 can mine data records from an isomorphic page using a noise information filter.It is based on the fact that the noise information is the same in two isomorphic pages,only the main information is different.Algorithm 3 can mine data records from an entire website using the technology of spider.The experiment shows that the proposed algorithms can mine data records more intactly than the existing algorithms.Mining data records from isomorphic pages is an efficient method.%为了提高从web中挖掘数据记录的精确性和完整性,提出了同构页与目录页的概念及3个算法.如果一组网页结构相同,只是主信息不同,该网页称为同构页.一个包含有多个指向同构页连接的网页称为目录页.算法1用于发现目录页,它首先将连接排序,并对同一目录的链接记数,如果记数大于某一给定阀值,则对其链接子页进行相似比较并得到结果.同时给出了一个网页相似度判断的函数.算法2采用了噪声信息过滤方法从同构页中挖掘主信息并得到数据记录,该算法是基于在2个同构页中噪声信息相同而只有主信息不同.算法3通过采用Spider技术可以实现从整个网站中自动挖掘数据记录.实验表明所提算法比已有算

  18. Design of Energy-efficient and Automatic Power-off Lamp Control Device%节能自动断电的电灯控制装置设计

    Institute of Scientific and Technical Information of China (English)

    昌晶; 汪洋; 兰月; 郭娜霜; 胡奎; 王洪亮

    2013-01-01

    In this paper ,we design an automatic power-off lamp control device based on the view of energy saving .which is controlled mainly by single chip microcomputer and supplemented by interrelated electronic circuitry ,using the bidirectional thyristor which con-catenated in electric circuits ,when the power suddenly stop and the power supply start again ,and switch is still in the closed state ,the control device can make the lamp lights for a second ,then power off ,in order to remind the users of that the power has been restored , which solve the problem of “People are not in the light”%  从节能角度设计了一种节能自动断电的电灯控制装置。该装置以单片机为控制核心,辅以相关性的电子电路器件,利用串接在电灯回路中的双向晶闸管,实现突然停电后再次来电时,控制装置可使电灯发光1 s提示用户来电后熄灭,解决了“人不在灯长明”的问题。

  19. 雷电流在线记录装置的低功耗设计%Low Power Design of the Lightning Current On-Line Record Device

    Institute of Scientific and Technical Information of China (English)

    李昆仑; 黄植功; 李振华; 吴明晴

    2013-01-01

    由于在线监测装置运行环境的特殊性,装置的取电非常不便。如何降低功耗,保证装置在阴雨雷电天气下连续工作,成为研究和开发人员考虑的首要问题。本文从软件和硬件低功耗设计的角度,介绍了雷电流在线记录装置的设计。装置采用STM32F407作为控制核心,利用芯片自带的模数转换器和DMA控制器,完成雷电流数据采集,并通过GPRS无线通信将采集数据发送至服务器。设计对装置的取电方式,低功耗器件选用和软硬件的低功耗设计进行了综合考虑,利用STM32F407的低功耗模式实现功耗控制,达到了降低功耗的目的,延长了装置在阴雨天气的工作时间。%Due to the particularity of the running environment of the lightning current on-line record device, power supply of the device is inconvenient. It is the primary problem for the research and development personnel to consider how to reduce the device’s power consumption and ensure it continuously work in stormy weather. This paper introduces the lightning current on-line record device from the point of view of the software and hardware low power design. The device uses STM32F407 as the control core, completes lightning current data acquisition by using the ADC analog converter and DMA controller, and sends the lightning current data to the server through the GPRS wireless communication. Considering the power supply mode,low power device selection and software and hardware design,the design successfully controls the power consumption by using low power consumption modes on chip of STM32F407, which achieves the goal of reducing the power consumption and extends the device’s working time in stormy weather.

  20. 非平面运动球式自动平衡装置稳定性分析%Stability Analysis of Ball-type Automatic Balancer Devices with Non-plane Motion

    Institute of Scientific and Technical Information of China (English)

    罗建; 谭青; 江波

    2016-01-01

    In the actual production, since imbalance moment is acting on the high-speed rotor, the whole shaft will produce a spatial motion, which can lead to non-plane motion of the rotor. In this paper, based on the Lagrange equation and Newton’s law, a mathematical model of the ball-type automatic balancer device with non-plane motion was established. In order to obtain the possible stable solution of the mathematical model, perturbation method and Rolls-Hurwitz criterion were adopted to analyze the stability of the system. Through this analysis, it was found that there exists the stable solution for the automatic balancer device in the cases of one ball or two balls. And the vibration of the system under different condition can be obtained. The device has stable solutions at over-critical speed, and it can also counterpoise the unbalanced force under certain conditions to reduce the vibration.%在实际生产工作中,高速运动转子由于受到不平衡力矩作用,会使整个转轴产生空间转动,这种转动使得转子产生非平面运动。采用拉格朗日方程和牛顿定律,建立一种非平面运动球式自动平衡装置数学模型;通过摄动法和劳斯-霍尔维茨判据对其可能使系统稳定的解进行分析,得出该自动平衡装置分别在1个球和2个球的情况下存在能够使系统稳定的解以及系统在不同条件下振动情况。该装置在过临界转速下存在稳定点,在一定条件下能对不平衡力进行平衡,达到减振目的。

  1. BORILAIN. Mobile device for automatic continuous supply of liquid injection system backup of a nuclear plant in emergency; BORILAIN. Dispositivo movil para el abastecimiento automatico en continuo del sistema de inyeccion del liquido de reserva de una central nuclear en situacion de emergencia

    Energy Technology Data Exchange (ETDEWEB)

    Lacalle, J.; Traino, J.; Troeung, J.; Arnaldos, A.; Alcaraz, D. A.; Lopez, B.; Ponce, A. T.

    2014-07-01

    This paper presents the design and development of the first automatic mobile device for the preparation of a neutron absorbing solution, and providing continuous, 30 days, of the injection system liquid reserve of a nuclear emergency. The work has been developed by GD Energy Services (GDES) for Electricite de France (EDF). (Author)

  2. An Earthquake Ground Motion Database System with Automatic Record Selection Methods%一种支持自动化选波的地震波数据库系统

    Institute of Scientific and Technical Information of China (English)

    徐亚军; 王朝坤; 魏冬梅; 施炜; 潘鹏

    2011-01-01

    With many earthquakes happening in recent years, the seismic performance of building structures is more and more important. How to select earthquake ground motion records for testing buildings is becoming much more necessary. Although the Occident has set up some earthquake ground motion database systems for researches of seismic performance of building structures, these database systems are not able to cover characteristics of earthquake ground motions of our country, nor offer record election methods meeting requirements of our engineering designs, let alone the automatic record selection method. Therefore, it is much necessary to develop an earthquake ground motion database system and scientific and reasonable selection methods of our country immediately. This paper presents an earthquake ground motion database system, which collects a lot of earthquake ground motion records. And the system supports two kinds of earthquake ground motion record selection methods: the conditional ground motion selection method and the severest ground motion selection method. Many experiments prove that the efficiency and effects of earthquake ground motion record selection methods can both meet users' requirements.%近年来地震频发,建筑结构的抗震性越来越被人们所重视,因此如何选取需要的地震波来检测建筑结构变得非常重要.虽然欧美等国家已经建立了一些用于结构抗震研究的地震波数据库系统,但是这些数据库系统均未能涵盖能反映我国地震动特征的地震波,也未能提供满足我国工程设计的选波方法,更没有实现自动化选波,所以迅速开发我国自己的地震波数据库系统和研究科学合理的选波方法显得十分必要.设计并实现了一种可以自动化选波的地震波数据库系统,该系统收集了许多具有代表性和权威性的地震波,并支持条件选波和最不利选波.大量的实验表明,该地震波数据库系统的选波效率、选波

  3. Research on the Making and Transporting Device of Automatic Vegetable Pot Machine Based on PLC%基于 PLC 的自动蔬菜穴盘钵机制钵和输送装置研究

    Institute of Scientific and Technical Information of China (English)

    王臻卓; 朱文琦; 李伟

    2017-01-01

    The seedling transplanting technology is a modern agricultural production technology, has been widely used at home and abroad. In the process of transplanting seedling transplanting, most of the methods used are manual work, which has low efficiency and great damage to the seedlings. In order to improve the automation degree of the pot seedling transplanting, a new type of automatic bowl and conveying device for the vegetable bowl seedling transplanting machine based on PLC was designed. The device adopts the PLC control system, the servo motor and step into motor can realize high precision seedling launched and accurate positioning, reducing the loss of rice seedlings. Using the belt drive and gear transmission to realize the synchronization of the drum and the planting device. Finally in an experimental green-house seedlings automatic conveying device were tested, in order to validate the experimental machine effect, the artifi-cial experimental results and testing machine test results were compared, by the test results show that the based on PLC control system vegetable plug seedling machine transplanting operation and manual methods compared, vegetable seedling loss rate declined, dropping seedling rate increase, which verified the reliability of the device.%钵苗移栽技术是一项现代农业增产技术,在国内外得到了广泛应用。在钵苗移栽作业过程中,大部分采用的是人工作业的方式,这种作业方式作业效率低,并且对苗的损害较大。为了提高钵苗移栽的自动化程度,设计了一种新的基于 PLC 的蔬菜钵苗移栽机自动制钵和输送装置。该装置采用 PLC 控制系统,利用伺服电机和步进电机可以实现高精度秧苗的推出和准确定位,降低了秧苗的损失。利用带传动和齿轮传动实现了转筒和栽植器的同步。最后,在实验大棚对穴盘钵苗自动输送装置的效果进行了测试,为了验证试验机的效果,将人工实验

  4. 自动测量胸径和树高便携设备的研制与测量精度分析%Developing and accuracy analysis of portable device for automatically measuring diameter at breast height and tree height

    Institute of Scientific and Technical Information of China (English)

    黄晓东; 冯仲科; 解明星; 陈金星; 刘金成

    2015-01-01

    Diameter at breast height and tree height are the foundations of evaluating site quality and tree’s growing situation. A portable mini multifunctional smart station has been developed based on the image automatic recognition theory, the photogrammetry theory, the similar triangles theory and the triangular function theory, which can measure the diameter at breast height and tree height. Simultaneously, this device integrates charge coupled device (CCD) image sensor with inclinometer, central processing unit, memory, liquid crystal screen, power supply and laser ranging sensor. After assembling the components, the station can be used to automatically measure the diameter and tree height accurately. It can be used to observe the plot after being mounted on the holder. During the measuring process, light spot needs to be aimed at the position of the diameter at breast height that is to be measured. The CCD sensor can automatically transform the light into electric charge signal and then into digital signal by the inner analog digital converter (ADC). After the hue correction and white balance processing by the digital signal processor, the digital signal is finally transformed into the visual image on the screen. When measuring, it can acquire 2 values, namely the inclination and the distance from the measuring point to the point needing measuring. Moreover, it can record and save the image information measured. The measurements of forest stand mean height, volume of wood and tree number density can be realized on the above basis. This device realizes the automatic measurement of the diameter at breast height, tree height and diameter at any part, and the basic measurement, a total of 4 functions through its imbedded running program. The distance measuring range for this device is between 0.05 and 120 m, and its effective reflection distance is between 0.05 and 100 m. The minimum display value is 0.001 m and its measuring precision is ±1.5 mm. The measuring range

  5. Implantation of the new Medtronic LINQ™ loop recorder in an infant with ventricular tachycardia.

    Science.gov (United States)

    Hutchinson, Lisa J; Stuart, Graham; Walsh, Mark A

    2015-08-01

    The Medtronic LINQ™ was inserted in an 11-month-old boy for close monitoring of rapid ventricular tachycardia. The device is much smaller than the conventional Medtronic loop recorder. The real advantage of the LINQ™ is that it automatically notifies Carelink if any ventricular tachycardia is seen, which is very advantageous for this particular type of patient. This device is ideal for close monitoring of asymptomatic yet potentially dangerous arrhythmias in smaller children.

  6. Continual and automatic recording method for fault data of variable-frequency drive sets%变频传动装置故障数据连续自动记录方法

    Institute of Scientific and Technical Information of China (English)

    刘东; 毛伟; 王云波; 岳淳

    2014-01-01

    Based on the single triggering mode of trace function for Simatic drive sets,we implement continual and automatic recording of fault data from Simatic drive sets by using Raspberry Pi comput-er as the kernel controller. We also implement the continuous re-triggering mechanism in an efficient and controlled way by using the built-in free function block and the optimal USS telegram structure to automatically configure the trigger condition. The efficient and controlled transmission of data is a-chieved through the ethernet FTP service. Functions such as multiple formats for fault recording files and history data combination are provided. This method gives lots of data support for fault analysis,lo-cation and check,and thus reduces production loss due to Simatic drive sets' fault.%基于西门子变频传动装置故障数据触发记录模式,采用树莓派单板机作为核心控制器,实现了装置故障数据连续自动记录功能。利用传动装置内置的自由功能块,采用USS协议最优报文结构实现触发条件的自动配置,实现了高效、可控的连续重复触发机制。通过以太网FTP服务程序完成了数据的有效、可控传输,并且提供多种数据文件格式以及历史数据合并功能。该方法为变频器传动装置故障信息分析、定位和排查,提供了更多的数据支持,减少了变频传动装置故障停机导致的减产。

  7. Automatic Intelligent Fish Tank Cleaning Device Based on SCM Control Technology%基于单片机的全自动智能鱼缸清理器系统设计

    Institute of Scientific and Technical Information of China (English)

    冯雅莉; 郝宁生

    2015-01-01

    全自动智能鱼缸清理器系统的设计是采用STC系列单片机中AT89C52、步进电机滑台、定时系统和控制部分组成的。系统中含有2个步进滑台,分别代表直角坐标系中的横纵坐标轴。滑台的转轴上有一有转轴带动的金属块,代表清理器在鱼缸清洁轨道上的位置。其中,转轴是由步进滑台中的四相步进电机带动的。定时系统是由定时部分的DS1302芯片、测温部分18B20芯片和显示部分的液晶屏LCD1602组成。该系统可以实现人为定时清理鱼缸,过滤水体中异物,增氧以及遇故障时人为调整等功能。%The cleaning device consists four parts: AT89C52 of STC series, stepper motor slide unit, timing system and the controlling part. The STC contains a memory inside which the data can be repeatedly written and erased as well as a random access memory. There are two slide units in the device, standing for the x-axis and y-axis in rectangular coordinate system respectively. A shaft, powered by the four-phrase steeper motor is placed inside the slide unit. Rotated by the shaft a mental block, it indicates the position of the cleaning device in the fish tank. The timing system combines a chip DS1302 for timing, a chip 18B20 for temperature testing and a LCD screen LCD1602.The device is developed for multi-functions such as cleaning the tank automatically in specific time; removing the impurity in water; adding oxygen to the water and adjusting the position of the stepper motor intelligently when accident occurs.

  8. 基于太阳能的微灌系统恒压供水自动控制装置研制%Constant pressure water supply automatic device designed for micro-irrigation system based on solar energy

    Institute of Scientific and Technical Information of China (English)

    李加念; 洪添胜; 倪慧娜

    2013-01-01

      The stability of micro-irrigation system inlet water pressure affects the uniformity of the micro-irrigation and the mixed fertilizer accuracy of automatic fertilizer mixing device. In order to provide a constant inlet water pressure for small and medium-sized irrigation pipe network which adopts gravity drip irrigation, a constant pressure water supply automatic control device was developed, through employing a diaphragm pump DP-60 powered by solar energy to carry water to the reservoir built in high place, and maintaining the reservoir’ water level at a fixed height in the drip irrigation process. The water level was detected online by using a level sensor YZ-YO-LAG1, and the controller control DP-60 carrying water to the reservoir according to the water level detected. Due to the certain distance between reservoir water level detection terminal and DP-60 control terminal, two wireless communication modules CC1100 were installed in each terminal respectively to realize wireless data transmission and control between two terminals. To reduce power consumption of wireless communication, a regular communication strategy combining with sleeping mechanism was adopted, and a kind of time synchronization technology was employed to keep time synchronization between the communication parties, and the WOR (wake on radio) mode of CC1100 module was enabled while communicating, the communication success rate was 100%verified by practical test. Photovoltaic capacity of the system had been designed for obtaining an optimal capacity combination of solar cell array and lead-acid battery, and the solar panel power was determined to be 60 W and the battery capacity to be 60 A·h, the capacity combination could meet the electricity demand of 500L irrigation norm for each drip irrigation cycle, and ensure that the system operates normally in seven consecutive days without sunshine. In order to maximize the use of solar energy, the relationship between solar panel power and the

  9. 基于盐化工自动包装系统的缝包机刹车装置设计%A Sack Closer Brake Device Design Based on the Salt and Chemical Automatic Packaging System

    Institute of Scientific and Technical Information of China (English)

    王俊祁; 张伟东

    2016-01-01

    In view of the present domestic automatic salt sewing machine without brakes ,causeing sewing tail wire is too long and not beautifull, and sewing line may be winding roller, we designed a cutting knife brakes. This device can make motor pulley braking at the moment of sack closer cutting off the line. Thus, it will greatly shorten the sewing stern line.%针对目前国内全自动食盐缝包机没有刹车装置而导致缝包尾线过长、缝包不美观、缝包线可能缠绕辊道的问题,设计了一个缝包机皮带轮抱刹刹车装置,该装置可以在缝包机切刀动作的一瞬间,对缝包机电机皮带轮实行点动刹车,从而大幅度缩短缝包尾线。

  10. Study on a New Type of Automatic Loading Device for Strain Gauge Balance Calibration%新型应变天平校准系统自动加载装置研究

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    Considering the characteristics of the wind tunnel balance calibration system,the automatic weight loading is the most important part.The clamping modules are the first time to be used as the lifting device in the weight mechanism design for the strain gauge balance calibration system,with them the structure of weight loading mechanism is greatly simplified.%风洞应变天平是风洞测力实验中最关键测量装置。为实现风洞应变天平校准系统的砝码自动加载,通过分析对比现有砝码自动加载方式的优缺点,结合应变天平校准系统特点,设计并研制采用膜片式夹紧气缸作为砝码升降机构执行元件的砝码加载装置。加载装置具有结构简单、体积小巧、性能稳定等优点。

  11. 基于EMS平台的电网保护故障管理信息系统%Automatic Management Information System for Protective Relaying and Fault Recorder Based on EMS Platform

    Institute of Scientific and Technical Information of China (English)

    熊燕; 李艳红

    2011-01-01

    Automatic management information system for protective relaying and fault recorder in Huainan is based on the integration of EMS platforms fault information analysis system.It solves the protection of information and remote information sharing model,real-time information sharing,but also provides the basic support on the EMS advanced applications,such as the DTS value simulation technology.Failure in the power grid,the system quickly transfers the remote substation relay operation and record waveforms to the main station.Then,according to the real-time data of the protection information and system information,dispatcher and relay protection engineer can fast access to telemetry,remote islands and networks of the power primary equipment and quickly accident analysis,scheduling decisions.%淮南地区电网保护故障管理信息系统是基于EMS平台的一体化故障信息分析系统,实现了保护信息与远动信息的模型共享、实时信息共享,同时也对EMS的高级应用提供了基础性支持,如DTS定值仿真技术。当电网发生故障时,能及时把远方变电站的继电保护动作情况和录波波形传送到主站,调度人员和继保人员可以结合保护信息和系统提供的实时数据,快速地获取电网一次设备的遥测、遥信和网络岛信息,快速地进行事故分析、调度决策。

  12. Analysis the causes of suspicious results for BECKMAN PK 7300 automatic blood inspection device%BECKM AN PK7300全自动血型检测系统可疑结果的原因分析

    Institute of Scientific and Technical Information of China (English)

    刘淼; 王霞; 潘彤

    2016-01-01

    目的:探讨BECKMAN PK7300全自动血型检测系统在血站实验室用于血型筛查时出现结果可疑的原因以及应用中的注意事项。方法选取天津市血液中心2015年5月至2015年8月ABO及Rh血型经微板法鉴定后的无偿献血者的标本14417例,再由PK7300进行检测,统计分析ABO及Rh血型结果判读的正确率、错误率以及对可疑结果的原因进行分析。结果ABO血型结果一次性判读正确率为99.01%,失败率0.99%(其中正反定型不符0.48%),无错误判读;Rh(D)血型正确判读率100%。结论 BECKMAN PK7300全自动血型检测系统结果准确可靠,实现了血型检测的自动化、标准化,减少人为因素对实验的影响,反应图像可长期保存,保证结果的可溯性,节约成本,适用于血站实验室血型批量化检测需要。%Objective To investigate the causes of suspicious results for BECKMAN PK 7300 automatic blood inspection device on blood typing in blood station and the application notes .Methods A total of 11417 samples from unpaid blood donors were re‐cruited from Tianjin Blood Center between May 2015 and August 2015 .Microplate assay was applied in ABO and Rh(D)blood typ‐ing .All the samples were tested by BECKMAN PK7300 automatic blood inspection device .The accuracy and error rates were calcu‐lated for ABO and Rh(D)blood group and causes of suspicious results were analyzed .Results The accuracy and failure rate of ABO blood group were 99 .01% and 0 .99% (of which the inconsistent rate of positive and reverse ABO blood typing was 0 .48% )and there was no false reading .Its accuracy was 100% in Rh(D)blood grouping .Conclusion The results of BECKMAN PK7300 auto‐matic blood inspection device were accurate and reliable .The whole system achieved automation and standardization and reduced the artificial factors for experiments ,which images could be saved for a long period of time ,saving the cost .The

  13. 某水电站油压装置自动补气超时问题的分析及处理%Analysis and Treatment of the Overtime Problem in Automatic Air Supplement of Oil Pressure Device in a Hydropower Station

    Institute of Scientific and Technical Information of China (English)

    郭守峰

    2015-01-01

    The structure and working principles of an automatic air supplement unit are introduced, which is adopted in the oil pressure device of the generator governor in a hydropower station.The overtime problem of the air supplement process occurred in the automatic air supplement unit is analyzed.Based on the analysis, the overtime problem is solved by optimization of the automatic air supplement parameters.%介绍了某水电站调速器油压装置自动补气装置组成、原理,并对该电站出现的自动补气装置补气超时现象的原因进行了分析,结合实际,通过自动补气参数的优化,自动补气超时现象消除。

  14. Young stock rearing using automatically recorded data

    NARCIS (Netherlands)

    Ipema, A.H.; Mol, de R.M.; Hogewerf, P.H.

    2014-01-01

    The subject ‘young stock rearing’ is important for future dairy farming. So far there has been too little attention for young stock rearing. Proper care by monitoring health and growth of the young animals will lengthen life expectancy and increase milk production of the adult dairy cow. Due to the

  15. Indication of CPAP in Patients with Suspected Obstructive Sleep Apnea, Based on Clinical Parameters and a Novel Two-Channel Recording Device (ApneaLink: A Pilot Study

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Nigro

    2012-01-01

    Full Text Available Objective. To evaluate the accuracy and reliability of the medical decision based on the results of the hand scoring from a two-channel recording device (ApneaLink plus clinical data for the prescription of a CPAP assay in patients with suspected OSA. Methods. 39 subjects were assessed in the sleep laboratory with polysomnography and ApneaLink. The patients completed the Epworth sleepiness scale and a clinical history. Two blinded independent observers decided to prescribe CPAP according to the results of the PSG (gold standard, observer A, ApneaLink (alternative method, observer B, and the clinical parameters. Sensitivity and specificity of observer B on the indication of CPAP were calculated. The interobserver agreement for the indication of CPAP was assessed using kappa statistics. Results. 38 subjects were included (26 men, mean age 47.5, mean RDI 28.7, mean BMI 31.4 kg/m2. The prevalence of OSA was 84%. The sensitivity and specificity of observer B to initiate a CPAP trial were 90.6% and 100%, respectively. The interrater agreement for the prescription of CPAP was good (kappa: 0.75. Conclusion. This study has shown that the use of ApneaLink plus clinical data has made it possible to indicate CPAP reliably in most patients with high-clinical pretest for OSA.

  16. Combined with work reality about styrene device dehydrogenation unit automatic control instrument system%结合工作实际谈谈苯乙烯装置脱氢单元自控仪表系统

    Institute of Scientific and Technical Information of China (English)

    於伟

    2013-01-01

    Is the original work unit and the host of the jiangsu chemical co.,LTD. 150000 tons of styrene plant DCS system are briefly introduced,and the styrene device dehydrogenation unit complex ratio control and V - 305 - T - 301 tower tank of uniform cascade control system in detail,and the F - 301 steam superheater outlet temperature TC - 3008,TC - 3015 - b respectively with fuel gas pressure PICA- 3003/3003,PICA - 3004/3004 b do control scheme of cascade control system,through discussing styrene dehydrogenation unit main control scheme of the automatic control instrument system,discusses the complex control algorithm in the ethylbenzene dehydrogenation stage control system%  就原工作单位江苏利士德化工有限公司15万吨苯乙烯装置 DCS 系统进行简要介绍,对苯乙烯装置上脱氢单元较复杂的 T-301塔比值控制和 V-305罐组成串级均匀控制系统做详细说明,并针对蒸汽过热炉 F-301出口温度 TC-3008,TC-3015分别与燃料气压力 PICA-3003/3003B,PICA-3004/3004B 组成的串级控制系统做控制方案说明,通过论述苯乙烯脱氢单元自控仪表系统的主要控制方案,探讨了复杂控制算法在乙苯脱氢阶段控制系统中的应用。

  17. Correction of the recording artifacts and detection of the functional deviations in ECG by means of syndrome decoding with an automatic burst error correction of the cyclic codes using periodograms for determination of code component spectral range

    Directory of Open Access Journals (Sweden)

    Evgenie D. Adamoviс

    2016-05-01

    Full Text Available Aims This paper describes a novel approach to the analysis of electrocardiographic data based on the consideration of the repetitive P, Q, R, S, T sequences as cyclic codes. In Part I we introduce a principle similar to the syndrome decoding using the control numbers, which allows correcting the noise combinations. Materials and methods We propose to apply the burst-error-correcting algorithms for automatic detection of the ECG artifacts and the functional abnormalities, including those compared to the reference model. Our approach is compared to the symbolic dynamics methods in cardiology practice. During the automated search of the code components (i.e. point values and spectral ranges one-to-one corresponding to P, Q, R, S, T considered in Part II, the authors apply the Lomb-Scargle periodogram method with the phase control which allows to determine the code components not only from the main harmonics, but also using the sidebands, avoiding the phase errors. Results The results of the method testing on rats with the heart failure using a simplified telemetric recording from the implantable chips are given in Part III. A complete independence of the results of the determination of the code points (fingerprints from the variables for which the calculation is performed is shown. We also prove the robustness of the above approach with respect to the most types of the non-adaptive filtration. Conclusion The above method can be useful not only for experimental medicine, but also for veterinary and clinical diagnostic practice. This method is adequately reproducable both on animals and human ECG, except for some constant values.

  18. Automatic alignment of double optical paths in excimer laser amplifier

    Science.gov (United States)

    Wang, Dahui; Zhao, Xueqing; Hua, Hengqi; Zhang, Yongsheng; Hu, Yun; Yi, Aiping; Zhao, Jun

    2013-05-01

    A kind of beam automatic alignment method used for double paths amplification in the electron pumped excimer laser system is demonstrated. In this way, the beams from the amplifiers can be transferred along the designated direction and accordingly irradiate on the target with high stabilization and accuracy. However, owing to nonexistence of natural alignment references in excimer laser amplifiers, two cross-hairs structure is used to align the beams. Here, one crosshair put into the input beam is regarded as the near-field reference while the other put into output beam is regarded as the far-field reference. The two cross-hairs are transmitted onto Charge Coupled Devices (CCD) by image-relaying structures separately. The errors between intersection points of two cross-talk images and centroid coordinates of actual beam are recorded automatically and sent to closed loop feedback control mechanism. Negative feedback keeps running until preset accuracy is reached. On the basis of above-mentioned design, the alignment optical path is built and the software is compiled, whereafter the experiment of double paths automatic alignment in electron pumped excimer laser amplifier is carried through. Meanwhile, the related influencing factors and the alignment precision are analyzed. Experimental results indicate that the alignment system can achieve the aiming direction of automatic aligning beams in short time. The analysis shows that the accuracy of alignment system is 0.63μrad and the beam maximum restoration error is 13.75μm. Furthermore, the bigger distance between the two cross-hairs, the higher precision of the system is. Therefore, the automatic alignment system has been used in angular multiplexing excimer Main Oscillation Power Amplification (MOPA) system and can satisfy the requirement of beam alignment precision on the whole.

  19. Automatic Video Monitor and Record System for High-Power AC Diesel Locomotive%大功率交流内燃机车自动视频监控及记录系统

    Institute of Scientific and Technical Information of China (English)

    鲁渝玲

    2012-01-01

    介绍了自动视频监控和记录系统在大功率交流内燃机车上的构成及应用.采用在车前、车后、车内等部位安装多路摄像头,并可对机车的运行状态的图像和数据进行显示、记录、同步回放或分类检索的方式,使司机能及时从操纵台的显示屏了解到车内各机械间和前后方道路的情况,避免了以往司机必须亲自进到各设备间对部件进行定期故障检查的情况,也提高了车外环境监控的准确性.这样不仅降低了司机的工作强度,还提高了监控的全面性和行车的安全性,特别对于目前铁路机车驾驶由正、副司机操作改革为单司机值乘的方案具有重要的适用意义.%Constitutes and applications of automatic video monitor and record system for high-power AC diesel locomotive are introduced. The system is equipped with several video cameras separately mounted in the front, rear and inside of the loco. The retrievable video images and related data of loco running status are displayed, recorded,and assorted. By this way,drivers can get sufficient information of loco work status inside each cabinets and road situations outside the loco from displays on the console without coming into every mechanical cabinet with more accurate circumstance information outside loco. Therefore, the driver' s working intensity is reduced,and loco application safety is increased. Its significance is especially prominent under present railway steering scheme as main-assistant driver mode being changed into one single driver mode.

  20. [Automated anesthesia record system].

    Science.gov (United States)

    Zhu, Tao; Liu, Jin

    2005-12-01

    Based on Client/Server architecture, a software of automated anesthesia record system running under Windows operation system and networks has been developed and programmed with Microsoft Visual C++ 6.0, Visual Basic 6.0 and SQL Server. The system can deal with patient's information throughout the anesthesia. It can collect and integrate the data from several kinds of medical equipment such as monitor, infusion pump and anesthesia machine automatically and real-time. After that, the system presents the anesthesia sheets automatically. The record system makes the anesthesia record more accurate and integral and can raise the anesthesiologist's working efficiency.

  1. Automatic safety rod for reactors. [LMFBR

    Science.gov (United States)

    Germer, J.H.

    1982-03-23

    An automatic safety rod for a nuclear reactor containing neutron absorbing material and designed to be inserted into a reactor core after a loss-of-flow. Actuation is based upon either a sudden decrease in core pressure drop or the pressure drop decreases below a predetermined minimum value. The automatic control rod includes a pressure regulating device whereby a controlled decrease in operating pressure due to reduced coolant flow does not cause the rod to drop into the core.

  2. An open source device for operant licking in rats.

    Science.gov (United States)

    Longley, Matthew; Willis, Ethan L; Tay, Cindy X; Chen, Hao

    2017-01-01

    We created an easy-to-use device for operant licking experiments and another device that records environmental variables. Both devices use the Raspberry Pi computer to obtain data from multiple input devices (e.g., radio frequency identification tag readers, touch and motion sensors, environmental sensors) and activate output devices (e.g., LED lights, syringe pumps) as needed. Data gathered from these devices are stored locally on the computer but can be automatically transferred to a remote server via a wireless network. We tested the operant device by training rats to obtain either sucrose or water under the control of a fixed ratio, a variable ratio, or a progressive ratio reinforcement schedule. The lick data demonstrated that the device has sufficient precision and time resolution to record the fast licking behavior of rats. Data from the environment monitoring device also showed reliable measurements. By providing the source code and 3D design under an open source license, we believe these examples will stimulate innovation in behavioral studies. The source code can be found at http://github.com/chen42/openbehavior.

  3. An open source device for operant licking in rats

    Directory of Open Access Journals (Sweden)

    Matthew Longley

    2017-02-01

    Full Text Available We created an easy-to-use device for operant licking experiments and another device that records environmental variables. Both devices use the Raspberry Pi computer to obtain data from multiple input devices (e.g., radio frequency identification tag readers, touch and motion sensors, environmental sensors and activate output devices (e.g., LED lights, syringe pumps as needed. Data gathered from these devices are stored locally on the computer but can be automatically transferred to a remote server via a wireless network. We tested the operant device by training rats to obtain either sucrose or water under the control of a fixed ratio, a variable ratio, or a progressive ratio reinforcement schedule. The lick data demonstrated that the device has sufficient precision and time resolution to record the fast licking behavior of rats. Data from the environment monitoring device also showed reliable measurements. By providing the source code and 3D design under an open source license, we believe these examples will stimulate innovation in behavioral studies. The source code can be found at http://github.com/chen42/openbehavior.

  4. An open source device for operant licking in rats

    Science.gov (United States)

    Longley, Matthew; Willis, Ethan L.; Tay, Cindy X.

    2017-01-01

    We created an easy-to-use device for operant licking experiments and another device that records environmental variables. Both devices use the Raspberry Pi computer to obtain data from multiple input devices (e.g., radio frequency identification tag readers, touch and motion sensors, environmental sensors) and activate output devices (e.g., LED lights, syringe pumps) as needed. Data gathered from these devices are stored locally on the computer but can be automatically transferred to a remote server via a wireless network. We tested the operant device by training rats to obtain either sucrose or water under the control of a fixed ratio, a variable ratio, or a progressive ratio reinforcement schedule. The lick data demonstrated that the device has sufficient precision and time resolution to record the fast licking behavior of rats. Data from the environment monitoring device also showed reliable measurements. By providing the source code and 3D design under an open source license, we believe these examples will stimulate innovation in behavioral studies. The source code can be found at http://github.com/chen42/openbehavior. PMID:28229020

  5. ATLAS Recordings

    CERN Multimedia

    Steven Goldfarb; Mitch McLachlan; Homer A. Neal

    Web Archives of ATLAS Plenary Sessions, Workshops, Meetings, and Tutorials from 2005 until this past month are available via the University of Michigan portal here. Most recent additions include the Trigger-Aware Analysis Tutorial by Monika Wielers on March 23 and the ROOT Workshop held at CERN on March 26-27.Viewing requires a standard web browser with RealPlayer plug-in (included in most browsers automatically) and works on any major platform. Lectures can be viewed directly over the web or downloaded locally.In addition, you will find access to a variety of general tutorials and events via the portal.Feedback WelcomeOur group is making arrangements now to record plenary sessions, tutorials, and other important ATLAS events for 2007. Your suggestions for potential recording, as well as your feedback on existing archives is always welcome. Please contact us at wlap@umich.edu. Thank you.Enjoy the Lectures!

  6. Automatic spikes detection in seismogram

    Institute of Scientific and Technical Information of China (English)

    王海军; 靳平; 刘贵忠

    2003-01-01

    @@ Data processing for seismic network is very complex and fussy, because a lot of data is recorded in seismic network every day, which make it impossible to process these data all by manual work. Therefore, seismic data should be processed automatically to produce a initial results about events detection and location. Afterwards, these results are reviewed and modified by analyst. In automatic processing data quality checking is important. There are three main problem data thatexist in real seismic records, which include: spike, repeated data and dropouts. Spike is defined as isolated large amplitude point; the other two problem datahave the same features that amplitude of sample points are uniform in a interval. In data quality checking, the first step is to detect and statistic problem data in a data segment, if percent of problem data exceed a threshold, then the whole data segment is masked and not be processed in the later process.

  7. An automatic tooth preparation technique: A preliminary study

    Science.gov (United States)

    Yuan, Fusong; Wang, Yong; Zhang, Yaopeng; Sun, Yuchun; Wang, Dangxiao; Lyu, Peijun

    2016-04-01

    The aim of this study is to validate the feasibility and accuracy of a new automatic tooth preparation technique in dental healthcare. An automatic tooth preparation robotic device with three-dimensional motion planning software was developed, which controlled an ultra-short pulse laser (USPL) beam (wavelength 1,064 nm, pulse width 15 ps, output power 30 W, and repeat frequency rate 100 kHz) to complete the tooth preparation process. A total of 15 freshly extracted human intact first molars were collected and fixed into a phantom head, and the target preparation shapes of these molars were designed using customised computer-aided design (CAD) software. The accuracy of tooth preparation was evaluated using the Geomagic Studio and Imageware software, and the preparing time of each tooth was recorded. Compared with the target preparation shape, the average shape error of the 15 prepared molars was 0.05–0.17 mm, the preparation depth error of the occlusal surface was approximately 0.097 mm, and the error of the convergence angle was approximately 1.0°. The average preparation time was 17 minutes. These results validated the accuracy and feasibility of the automatic tooth preparation technique.

  8. Semiautomatic device tests components with biaxial leads

    Science.gov (United States)

    Marshall, T. C.

    1966-01-01

    Semiautomatic device with a four-terminal network tests quantities of components having biaxial leads. The four-terminal network permits the testing of components in different environments. This device is easily modified for completely automatic operation.

  9. Rule-based medical device adaptation for the digital operating room.

    Science.gov (United States)

    Franke, Stefan; Neumuth, Thomas

    2015-08-01

    A workflow-driven cooperative operating room needs to be established in order to successfully unburden the surgeon and the operating room staff very time-consuming information-seeking and configuration tasks. We propose an approach towards the integration of intraoperative surgical workflow management and integration technologies. The concept of rule-based behavior is adapted to situation-aware medical devices. A prototype was implemented and experiments with sixty recorded brain tumor removal procedures were conducted to test the proposed approach. An analysis of the recordings indicated numerous applications, such as automatic display configuration, room light adaptation and pre-configuration of medical devices and systems.

  10. Automatic acquisition of pattern collocations in GO

    Institute of Scientific and Technical Information of China (English)

    LIU Zhi-qing; DOU Qing; LI Wen-hong; LU Ben-jie

    2008-01-01

    The quality, quantity, and consistency of the knowledgeused in GO-playing programs often determine their strengths,and automatic acquisition of large amounts of high-quality andconsistent GO knowledge is crucial for successful GO playing.In a previous article of this subject, we have presented analgorithm for efficient and automatic acquisition of spatialpatterns of GO as well as their frequency of occurrence fromgame records. In this article, we present two algorithms, one forefficient and automatic acquisition of pairs of spatial patternsthat appear jointly in a local context, and the other for deter-mining whether the joint pattern appearances are of certainsignificance statistically and not just a coincidence. Results ofthe two algorithms include 1 779 966 pairs of spatial patternsacquired automatically from 16 067 game records of profess-sional GO players, of which about 99.8% are qualified as patterncollocations with a statistical confidence of 99.5% or higher.

  11. Development of a high capacity bubble domain memory element and related epitaxial garnet materials for application in spacecraft data recorders. Item 2: The optimization of material-device parameters for application in bubble domain memory elements for spacecraft data recorders

    Science.gov (United States)

    Besser, P. J.

    1976-01-01

    Bubble domain materials and devices are discussed. One of the materials development goals was a materials system suitable for operation of 16 micrometer period bubble domain devices at 150 kHz over the temperature range -10 C to +60 C. Several material compositions and hard bubble suppression techniques were characterized and the most promising candidates were evaluated in device structures. The technique of pulsed laser stroboscopic microscopy was used to characterize bubble dynamic properties and device performance at 150 kHz. Techniques for large area LPE film growth were developed as a separate task. Device studies included detector optimization, passive replicator design and test and on-chip bridge evaluation. As a technology demonstration an 8 chip memory cell was designed, tested and delivered. The memory elements used in the cell were 10 kilobit serial registers.

  12. Automatic Fringe Detection Of Dynamic Moire Patterns

    Science.gov (United States)

    Fang, Jing; Su, Xian-ji; Shi, Hong-ming

    1989-10-01

    Fringe-carrier method is used in automatic fringe-order numbering of dynamic in-plane moire patterns. In experiment both static carrier and dynamic moire patterns are recorded. The image files corresponding to instants are set up to assign fringe orders automatically. Subtracting the carrier image from the modulated ones, the moire patterns due to the dynamic deformations are restored with fringe-order variation displayed by different grey levels.

  13. Noninvasive automatic blood pressure monitoring does not attenuate nighttime hypotension. Evidence from 24 h intraarterial blood pressure monitoring.

    Science.gov (United States)

    Villani, A; Parati, G; Groppelli, A; Omboni, S; Di Rienzo, M; Mancia, G

    1992-10-01

    Automatic ambulatory blood pressure monitoring makes use of repeated cuff inflations throughout the day and night. This may interfere with the cardiovascular effects of sleep and thus alter the 24 h blood pressure profile. The possibility that intermittent automatic blood pressure measurements prevent nocturnal hypotension was examined in 17 mild or moderate essential hypertensive patients in whom blood pressure was recorded intraarterially for 48 h by the Oxford technique. During the first or the second 24 h period, blood pressure was also monitored noninvasively by the SpaceLabs (Redmond, WA) 5300 (n = 10) and by the Sandoz Pressure System SPS 1558 (Lavanchy Electronique, Prilly, Switzerland) (n = 7) devices, automatic measurements being performed at 15 min intervals during the day and at 30 min intervals during the night. Separate computer analysis of 24 h intraarterial tracings obtained in absence and in concomitance of contralateral automatic blood pressure monitoring showed that the occurrence of automatic measurements had not interfered with the day-night intraarterial blood pressure and heart rate profiles. Thus the frequent cuff inflations that characterize automatic blood pressure monitoring do not attenuate nighttime hypotension and bradycardia. This finding supports use of the noninvasive approach in assessing blood pressure profiles.

  14. 49 CFR 236.825 - System, automatic train control.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false System, automatic train control. 236.825 Section..., INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.825 System, automatic train control. A system so arranged that its operation will...

  15. New functional units for coke machine automatic control system

    Energy Technology Data Exchange (ETDEWEB)

    Parfenov, G.I.; Bannikov, L.S.; Vakarenko, I.M.; Grishin, S.P.

    1983-01-01

    A new device used in the control systems of coking plants is discussed. The system is capable of operating in fully automatic, semi-automatic, or manual modes. Examples of the usage of the unit include the stopping of coke machines within limits of +/- 200 mm. It is concluded that the use of the units reduce manufacture, adjustment, and service costs.

  16. Automatic HDL firmware generation for FPGA-based reconfigurable measurement and control systems with mezzanines in FMC standard

    Science.gov (United States)

    Wojenski, Andrzej; Kasprowicz, Grzegorz; Pozniak, Krzysztof T.; Romaniuk, Ryszard

    2013-10-01

    The paper describes a concept of automatic firmware generation for reconfigurable measurement systems, which uses FPGA devices and measurement cards in FMC standard. Following sections are described in details: automatic HDL code generation for FPGA devices, automatic communication interfaces implementation, HDL drivers for measurement cards, automatic serial connection between multiple measurement backplane boards, automatic build of memory map (address space), automatic generated firmware management. Presented solutions are required in many advanced measurement systems, like Beam Position Monitors or GEM detectors. This work is a part of a wider project for automatic firmware generation and management of reconfigurable systems. Solutions presented in this paper are based on previous publication in SPIE.

  17. Automatic Schema Evolution in Root

    Institute of Scientific and Technical Information of China (English)

    ReneBrun; FonsRademakers

    2001-01-01

    ROOT version 3(spring 2001) supports automatic class schema evolution.In addition this version also produces files that are self-describing.This is achieved by storing in each file a record with the description of all the persistent classes in the file.Being self-describing guarantees that a file can always be read later,its structure browsed and objects inspected.also when the library with the compiled code of these classes is missing The schema evolution mechanism supports the frequent case when multiple data sets generated with many different class versions must be analyzed in the same session.ROOT supports the automatic generation of C++ code describing the data objects in a file.

  18. Relations between different objective milking speed recording systems

    Directory of Open Access Journals (Sweden)

    Luigi Gallo

    2010-01-01

    Full Text Available This study aimed to analyse the sources of variation of milking speed assessed through automatic computerised devices included in milking machines, to study the relationships between this trait and milking speed assessed through stopwatch and to develop statistical procedures useful for converting automatic device milking time into stopwatch milking time in order to obtain a fast, simple and cheap collection of milking time records for genetic evaluation purposes. A total of 571 records of stopwatch milking time (SMT, device milking time (DMT and milk yield at milking were collected in 23 herds of the Trentino Alto Adige region in Italy equipped with two types of automatic milking devices. After log-transformation of SMT (lnSMT and DMT (lnDMT and a preliminary analysis of sources of variation of lnDMT, dataset was partitioned into two mutually exclusive subsets: a calibration one, used for statistical analysis, and a validation one, used as test set to validate the prediction models. This procedure was replicated 6 times in order to repeat the cross validation accordingly. Three conversion models have been compared, based on different combinations of the effects of lnDMT, milking device and herd within milking device on lnSMT. Solutions of the models have been applied for each replicate to the validation dataset for estimating lnSMT and the soundness of conversion equations have been evaluated considering the correlation between estimated and actual lnSMT and bias and precision of estimates. Milking time assessed through different procedures resulted in differences between methods for both mean and distribution, and these suggested the need of developing statistical procedures aimed to the conversion of DMT into SMT before their use in sire evaulation. The soundness of the models tended to slightly increase with the increase in the number of effects considered. The correlation between estimated and actual SMT was in the range of 0.80 to 0

  19. Automatic measurement of soil-water pressure using a capacitance manometer

    Science.gov (United States)

    Thony, Jean-Louis; Vachaud, Georges

    1980-03-01

    A new, cheap and reliable pressure transducer has been developed. It is based on the use of a mercury manometer with the outer face of the glass tubing covered with a transparent metallic oxide. This acts as the fixed outer electrode of a capacitor, of which the capacitance linearly changes with the position of the mercury in the tube. This pressure transducer can be linked with an automatic recording device. Examples are given of the field use of a series of these transducers in which they are coupled to tensiometers in a natural water-balance study.

  20. 稻田开放式自动化养鸭设备的研制及试验%Development and experiment of automatic duck feeding device with opening way for paddy

    Institute of Scientific and Technical Information of China (English)

    任文涛; 王岳; 孔爱菊; 辛明金; 宋玉秋; 邬立岩; 刘翠红; 崔红光

    2016-01-01

    为了解决鸭稻共作过程中依靠人工饲养鸭子费时费力的问题,加速推广具有良好经济效益和社会效益的水稻生态农业模式,该文设计了一种以单片机为控制核心,在无人值守情况下在稻田中自动化养鸭设备。该设备放置在稻田的输水渠上不占农田,由太阳能电池板产生的能量驱动,能够按照昼夜变化规律运行,早晨05:30后自动开门,傍晚18:00奏音乐唤鸭回笼并能自动补料、给水和关门。由于料斗放置在田间,饲料容易受潮而结拱影响补料量控制的精准度,设计了振动式料斗破拱装置,试验确定了破拱装置的振动偏心距为30 mm、转速为1200 r/min。田间试验结果表明,在自动门延迟关门1 min和声音响度100 dB时,鸭群回笼率达到97.5%以上;自动化养鸭设备饲养鸭群体质量增长与人工喂养无显著性差异(P>0.05)。该研究成果对鸭稻共作技术的推广应用具有重要意义。%The technology of raising duck in paddy filed has good economic and ecological benefits for rice based agriculture. The past studies are usually only based on interaction effect between ducks and paddy. In this paper, we took the development of automatic duck feeding equipment that could adapt environment of paddy as its study object. Equipment for both automatic feeding system and automatic door system are crucial issues needed to be solved by adequate design, calculation and testing. Through the relevant experiment for the speed of ducks returning to cages, we gained optimal speed of the automatic door was 5r/min. The automatic door of the related calculation showed that the adaptive quality of the automatic door was 4.15 kg, moment of inertia was 0.24 kg·m2. The time of accelerating speed of automatic doors from 0 to 5 r/min was 0.0067s. According to the dynamic theory, we obtained the minimum torque of automatic door was 9.8 N·m. Automatic door powered by 15W DC

  1. Automatic Speech Segmentation Based on HMM

    Directory of Open Access Journals (Sweden)

    M. Kroul

    2007-06-01

    Full Text Available This contribution deals with the problem of automatic phoneme segmentation using HMMs. Automatization of speech segmentation task is important for applications, where large amount of data is needed to process, so manual segmentation is out of the question. In this paper we focus on automatic segmentation of recordings, which will be used for triphone synthesis unit database creation. For speech synthesis, the speech unit quality is a crucial aspect, so the maximal accuracy in segmentation is needed here. In this work, different kinds of HMMs with various parameters have been trained and their usefulness for automatic segmentation is discussed. At the end of this work, some segmentation accuracy tests of all models are presented.

  2. Presentation video retrieval using automatically recovered slide and spoken text

    Science.gov (United States)

    Cooper, Matthew

    2013-03-01

    Video is becoming a prevalent medium for e-learning. Lecture videos contain text information in both the presentation slides and lecturer's speech. This paper examines the relative utility of automatically recovered text from these sources for lecture video retrieval. To extract the visual information, we automatically detect slides within the videos and apply optical character recognition to obtain their text. Automatic speech recognition is used similarly to extract spoken text from the recorded audio. We perform controlled experiments with manually created ground truth for both the slide and spoken text from more than 60 hours of lecture video. We compare the automatically extracted slide and spoken text in terms of accuracy relative to ground truth, overlap with one another, and utility for video retrieval. Results reveal that automatically recovered slide text and spoken text contain different content with varying error profiles. Experiments demonstrate that automatically extracted slide text enables higher precision video retrieval than automatically recovered spoken text.

  3. Automatic Fiscal Stabilizers

    Directory of Open Access Journals (Sweden)

    Narcis Eduard Mitu

    2013-11-01

    Full Text Available Policies or institutions (built into an economic system that automatically tend to dampen economic cycle fluctuations in income, employment, etc., without direct government intervention. For example, in boom times, progressive income tax automatically reduces money supply as incomes and spendings rise. Similarly, in recessionary times, payment of unemployment benefits injects more money in the system and stimulates demand. Also called automatic stabilizers or built-in stabilizers.

  4. Automatic differentiation bibliography

    Energy Technology Data Exchange (ETDEWEB)

    Corliss, G.F. (comp.)

    1992-07-01

    This is a bibliography of work related to automatic differentiation. Automatic differentiation is a technique for the fast, accurate propagation of derivative values using the chain rule. It is neither symbolic nor numeric. Automatic differentiation is a fundamental tool for scientific computation, with applications in optimization, nonlinear equations, nonlinear least squares approximation, stiff ordinary differential equation, partial differential equations, continuation methods, and sensitivity analysis. This report is an updated version of the bibliography which originally appeared in Automatic Differentiation of Algorithms: Theory, Implementation, and Application.

  5. Automatic Speech Signal Analysis for Clinical Diagnosis and Assessment of Speech Disorders

    CERN Document Server

    Baghai-Ravary, Ladan

    2013-01-01

    Automatic Speech Signal Analysis for Clinical Diagnosis and Assessment of Speech Disorders provides a survey of methods designed to aid clinicians in the diagnosis and monitoring of speech disorders such as dysarthria and dyspraxia, with an emphasis on the signal processing techniques, statistical validity of the results presented in the literature, and the appropriateness of methods that do not require specialized equipment, rigorously controlled recording procedures or highly skilled personnel to interpret results. Such techniques offer the promise of a simple and cost-effective, yet objective, assessment of a range of medical conditions, which would be of great value to clinicians. The ideal scenario would begin with the collection of examples of the clients’ speech, either over the phone or using portable recording devices operated by non-specialist nursing staff. The recordings could then be analyzed initially to aid diagnosis of conditions, and subsequently to monitor the clients’ progress and res...

  6. ATLAS Recordings

    CERN Multimedia

    Jeremy Herr; Homer A. Neal; Mitch McLachlan

    The University of Michigan Web Archives for the 2006 ATLAS Week Plenary Sessions, as well as the first of 2007, are now online. In addition, there are a wide variety of Software and Physics Tutorial sessions, recorded over the past couple years, to chose from. All ATLAS-specific archives are accessible here.Viewing requires a standard web browser with RealPlayer plug-in (included in most browsers automatically) and works on any major platform. Lectures can be viewed directly over the web or downloaded locally.In addition, you will find access to a variety of general tutorials and events via the portal. Shaping Collaboration 2006The Michigan group is happy to announce a complete set of recordings from the Shaping Collaboration conference held last December at the CICG in Geneva.The event hosted a mix of Collaborative Tool experts and LHC Users, and featured presentations by the CERN Deputy Director General, Prof. Jos Engelen, the President of Internet2, and chief developers from VRVS/EVO, WLAP, and other tools...

  7. 30 CFR 75.1103-6 - Automatic fire sensors; actuation of fire suppression systems.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Automatic fire sensors; actuation of fire... Protection § 75.1103-6 Automatic fire sensors; actuation of fire suppression systems. Point-type heat sensors or automatic fire sensor and warning device systems may be used to actuate deluge-type water systems...

  8. Mediation and Automatization.

    Science.gov (United States)

    Hutchins, Edwin

    This paper discusses the relationship between the mediation of task performance by some structure that is not inherent in the task domain itself and the phenomenon of automatization, in which skilled performance becomes effortless or phenomenologically "automatic" after extensive practice. The use of a common simple explicit mediating…

  9. Automatic Differentiation Package

    Energy Technology Data Exchange (ETDEWEB)

    2007-03-01

    Sacado is an automatic differentiation package for C++ codes using operator overloading and C++ templating. Sacado provide forward, reverse, and Taylor polynomial automatic differentiation classes and utilities for incorporating these classes into C++ codes. Users can compute derivatives of computations arising in engineering and scientific applications, including nonlinear equation solving, time integration, sensitivity analysis, stability analysis, optimization and uncertainity quantification.

  10. Focusing Automatic Code Inspections

    NARCIS (Netherlands)

    Boogerd, C.J.

    2010-01-01

    Automatic Code Inspection tools help developers in early detection of defects in software. A well-known drawback of many automatic inspection approaches is that they yield too many warnings and require a clearer focus. In this thesis, we provide such focus by proposing two methods to prioritize

  11. Technical and clinical analysis of microEEG: a miniature wireless EEG device designed to record high-quality EEG in the emergency department

    OpenAIRE

    Omurtag, Ahmet; Baki, Samah G Abdel; Chari, Geetha; Cracco, Roger Q; Zehtabchi, Shahriar; Fenton, André A.; Grant, Arthur C

    2012-01-01

    Background We describe and characterize the performance of microEEG compared to that of a commercially available and widely used clinical EEG machine. microEEG is a portable, battery-operated, wireless EEG device, developed by Bio-Signal Group to overcome the obstacles to routine use of EEG in emergency departments (EDs). Methods The microEEG was used to obtain EEGs from healthy volunteers in the EEG laboratory and ED. The standard system was used to obtain EEGs from healthy volunteers in the...

  12. Automatic air flow control in air conditioning ducts

    Science.gov (United States)

    Obler, H. D.

    1972-01-01

    Device is designed which automatically selects air flow coming from either of two directions and which can be adjusted to desired air volume on either side. Device uses one movable and two fixed scoops which control air flow and air volume.

  13. Automatic weld torch guidance control system

    Science.gov (United States)

    Smaith, H. E.; Wall, W. A.; Burns, M. R., Jr.

    1982-01-01

    A highly reliable, fully digital, closed circuit television optical, type automatic weld seam tracking control system was developed. This automatic tracking equipment is used to reduce weld tooling costs and increase overall automatic welding reliability. The system utilizes a charge injection device digital camera which as 60,512 inidividual pixels as the light sensing elements. Through conventional scanning means, each pixel in the focal plane is sequentially scanned, the light level signal digitized, and an 8-bit word transmitted to scratch pad memory. From memory, the microprocessor performs an analysis of the digital signal and computes the tracking error. Lastly, the corrective signal is transmitted to a cross seam actuator digital drive motor controller to complete the closed loop, feedback, tracking system. This weld seam tracking control system is capable of a tracking accuracy of + or - 0.2 mm, or better. As configured, the system is applicable to square butt, V-groove, and lap joint weldments.

  14. Spill-Detector-and-Shutoff Device

    Science.gov (United States)

    Jarvis, M. R.; Fulton, D. S.

    1985-01-01

    Overflow in liquid chromatography systems rapidly detected and stopped. Spill-detector-and-shutoff device incorporated into liquid-chromatography system. When liquid from output nozzle spills on liquid sensor, device automatically shuts off pump and releases solenoid to pinch off flow in tube. Device uses common type of alarm circuit reset manually before normal operation resumes.

  15. Variable-mass Thermodynamics Calculation Model for Gas-operated Automatic Weapon%Variable-mass Thermodynamics Calculation Model for Gas-operated Automatic Weapon

    Institute of Scientific and Technical Information of China (English)

    陈建彬; 吕小强

    2011-01-01

    Aiming at the fact that the energy and mass exchange phenomena exist between barrel and gas-operated device of the automatic weapon, for describing its interior ballistics and dynamic characteristics of the gas-operated device accurately, a new variable-mass thermodynamics model is built. It is used to calculate the automatic mechanism velocity of a certain automatic weapon, the calculation results coincide with the experimental results better, and thus the model is validated. The influences of structure parameters on gas-operated device' s dynamic characteristics are discussed. It shows that the model is valuable for design and accurate performance prediction of gas-operated automatic weapon.

  16. Word Automaticity of Tree Automatic Scattered Linear Orderings Is Decidable

    CERN Document Server

    Huschenbett, Martin

    2012-01-01

    A tree automatic structure is a structure whose domain can be encoded by a regular tree language such that each relation is recognisable by a finite automaton processing tuples of trees synchronously. Words can be regarded as specific simple trees and a structure is word automatic if it is encodable using only these trees. The question naturally arises whether a given tree automatic structure is already word automatic. We prove that this problem is decidable for tree automatic scattered linear orderings. Moreover, we show that in case of a positive answer a word automatic presentation is computable from the tree automatic presentation.

  17. 主机遥控气动装置FTA与FEA计算机分析软件开发%he development of analysis software for both FTA and FEA of pneumatic device  in automatic remote control system for main diesel engine

    Institute of Scientific and Technical Information of China (English)

    郑士君; 褚建新; 韩成敏; 徐波

    2001-01-01

    对主机遥控气动装置在故障树分析(FTA)和故障效应分析(FEA)基础上,从系统化角度建立镜像对称故障矩阵模型,从而实现计算机故障信息流分析与查询。%Based on the FTA(fault-tree analysis)and FEA(failure effect analysis)of pneumatic device in automatic remote control system for main diesel engine,the fault model with logic matrix in mirror symmetry was built systematically and the computer-based analysis and finding of fault information stream were realized.The applications software has been installed in some vessels and a good result has been gained.

  18. Automatic Mode Switch (AMS Causes Less Synchronization

    Directory of Open Access Journals (Sweden)

    Jorat

    2016-03-01

    Full Text Available Introduction Cardiac resynchronization devices are part of modern heart failure management. After implantation, we analyze and program devices in an attempt to ensure their success. Biventricular pacing should be 98% or more for the lowest mortality and best symptom improvement. Case Presentation In this case series, we present a combination of far field sensing and automatic mode switching (AMS in six patients. It is found that this combination causes ventricular sensing (VS episodes with wide QRS and no synchronization. We turn off the AMS and alleviate the problem. Conclusions Switching AMS off may increase biventricular pacing in some patients.

  19. Ambient temperature recorder

    Science.gov (United States)

    Russell, Larry D.

    1991-01-01

    A temperature data recorder, designated the Ambient Temperature Recorder (ATR-4), was developed at NASA Ames Research Center to meet particular requirements for space life sciences experiments. The small, self-contained, four-channel, battery-powered device records 32 kilobytes of temperature data over a range of -40 to +60 C at four sampling intervals ranging from 1.875 to 15 minutes. Data is stored in its internal electronic memory for later readout by a personal computer.

  20. DEVELOPMENT OF THE AUTOMATIC TRACKING MECHANISM OF LARGE LIGHT FOCUSING DEVICES OF PHOTOVOLTAJC GENERATION%大型光伏发电聚光器跟踪机构的研制

    Institute of Scientific and Technical Information of China (English)

    许志龙

    2009-01-01

    The light focusing efficiency is largely influenced by the sun tracking accuracy of light focusing devices of pho-tovoltaic generation. The potential error of one planar tracking mechanism with friction wheel and lead screw combined was analyzed. In the test, practicality indicated which can be used in real-time tracking of the elevation angle and azi-muth angle of the sun for various kinds of large light focusing devices of photovoltaic generation.%介绍了一种摩擦轮驱动和丝杆驱动组合的二维跟踪机构,在此基础上对跟踪可能产生的误差进行分析,并通过实践验证,得出此种驱动方案适用于各种大型光伏发电聚光器实时跟踪太阳的方位角和高度角.

  1. Eye-tracking for clinical decision support: A method to capture automatically what physicians are viewing in the EMR.

    Science.gov (United States)

    King, Andrew J; Hochheiser, Harry; Visweswaran, Shyam; Clermont, Gilles; Cooper, Gregory F

    2017-01-01

    Eye-tracking is a valuable research tool that is used in laboratory and limited field environments. We take steps toward developing methods that enable widespread adoption of eye-tracking and its real-time application in clinical decision support. Eye-tracking will enhance awareness and enable intelligent views, more precise alerts, and other forms of decision support in the Electronic Medical Record (EMR). We evaluated a low-cost eye-tracking device and found the device's accuracy to be non-inferior to a more expensive device. We also developed and evaluated an automatic method for mapping eye-tracking data to interface elements in the EMR (e.g., a displayed laboratory test value). Mapping was 88% accurate across the six participants in our experiment. Finally, we piloted the use of the low-cost device and the automatic mapping method to label training data for a Learning EMR (LEMR) which is a system that highlights the EMR elements a physician is predicted to use.

  2. Transient Voltage Recorder

    Science.gov (United States)

    Medelius, Pedro J. (Inventor); Simpson, Howard J. (Inventor)

    2002-01-01

    A voltage transient recorder can detect lightning induced transient voltages. The recorder detects a lightning induced transient voltage and adjusts input amplifiers to accurately record transient voltage magnitudes. The recorder stores voltage data from numerous monitored channels, or devices. The data is time stamped and can be output in real time, or stored for later retrieval. The transient recorder, in one embodiment, includes an analog-to-digital converter and a voltage threshold detector. When an input voltage exceeds a pre-determined voltage threshold, the recorder stores the incoming voltage magnitude and time of arrival. The recorder also determines if its input amplifier circuits clip the incoming signal or if the incoming signal is too low. If the input data is clipped or too low, the recorder adjusts the gain of the amplifier circuits to accurately acquire subsequent components of the lightning induced transients.

  3. Dynamic Analysis of a Pendulum Dynamic Automatic Balancer

    Directory of Open Access Journals (Sweden)

    Jin-Seung Sohn

    2007-01-01

    Full Text Available The automatic dynamic balancer is a device to reduce the vibration from unbalanced mass of rotors. Instead of considering prevailing ball automatic dynamic balancer, pendulum automatic dynamic balancer is analyzed. For the analysis of dynamic stability and behavior, the nonlinear equations of motion for a system are derived with respect to polar coordinates by the Lagrange's equations. The perturbation method is applied to investigate the dynamic behavior of the system around the equilibrium position. Based on the linearized equations, the dynamic stability of the system around the equilibrium positions is investigated by the eigenvalue analysis.

  4. A method of automatic control procedures cardiopulmonary resuscitation

    Science.gov (United States)

    Bureev, A. Sh.; Zhdanov, D. S.; Kiseleva, E. Yu.; Kutsov, M. S.; Trifonov, A. Yu.

    2015-11-01

    The study is to present the results of works on creation of methods of automatic control procedures of cardiopulmonary resuscitation (CPR). A method of automatic control procedure of CPR by evaluating the acoustic data of the dynamics of blood flow in the bifurcation of carotid arteries and the dynamics of air flow in a trachea according to the current guidelines for CPR is presented. Evaluation of the patient is carried out by analyzing the respiratory noise and blood flow in the interspaces between the chest compressions and artificial pulmonary ventilation. The device operation algorithm of automatic control procedures of CPR and its block diagram has been developed.

  5. All-optical automatic pollen identification: Towards an operational system

    Science.gov (United States)

    Crouzy, Benoît; Stella, Michelle; Konzelmann, Thomas; Calpini, Bertrand; Clot, Bernard

    2016-09-01

    We present results from the development and validation campaign of an optical pollen monitoring method based on time-resolved scattering and fluorescence. Focus is first set on supervised learning algorithms for pollen-taxa identification and on the determination of aerosol properties (particle size and shape). The identification capability provides a basis for a pre-operational automatic pollen season monitoring performed in parallel to manual reference measurements (Hirst-type volumetric samplers). Airborne concentrations obtained from the automatic system are compatible with those from the manual method regarding total pollen and the automatic device provides real-time data reliably (one week interruption over five months). In addition, although the calibration dataset still needs to be completed, we are able to follow the grass pollen season. The high sampling from the automatic device allows to go beyond the commonly-presented daily values and we obtain statistically significant hourly concentrations. Finally, we discuss remaining challenges for obtaining an operational automatic monitoring system and how the generic validation environment developed for the present campaign could be used for further tests of automatic pollen monitoring devices.

  6. Automatic Program Development

    DEFF Research Database (Denmark)

    by members of the IFIP Working Group 2.1 of which Bob was an active member. All papers are related to some of the research interests of Bob and, in particular, to the transformational development of programs and their algorithmic derivation from formal specifications. Automatic Program Development offers......Automatic Program Development is a tribute to Robert Paige (1947-1999), our accomplished and respected colleague, and moreover our good friend, whose untimely passing was a loss to our academic and research community. We have collected the revised, updated versions of the papers published in his...... honor in the Higher-Order and Symbolic Computation Journal in the years 2003 and 2005. Among them there are two papers by Bob: (i) a retrospective view of his research lines, and (ii) a proposal for future studies in the area of the automatic program derivation. The book also includes some papers...

  7. The effect of providing feedback on inhaler technique and adherence from an electronic audio recording device, INCA®, in a community pharmacy setting: study protocol for a randomised controlled trial.

    Science.gov (United States)

    O'Dwyer, Susan Mary; MacHale, Elaine; Sulaiman, Imran; Holmes, Martin; Hughes, Cian; D'Arcy, Shona; Rapcan, Viliam; Taylor, Terence; Boland, Fiona; Bosnic-Anticevich, Sinthia; Reilly, Richard B; Ryder, Sheila A; Costello, Richard W

    2016-05-04

    Poor adherence to inhaled medication may lead to inadequate symptom control in patients with respiratory disease. In practice it can be difficult to identify poor adherence. We designed an acoustic recording device, the INCA® (INhaler Compliance Assessment) device, which, when attached to an inhaler, identifies and records the time and technique of inhaler use, thereby providing objective longitudinal data on an individual's adherence to inhaled medication. This study will test the hypothesis that providing objective, personalised, visual feedback on adherence to patients in combination with a tailored educational intervention in a community pharmacy setting, improves adherence more effectively than education alone. The study is a prospective, cluster randomised, parallel-group, multi-site study conducted over 6 months. The study is designed to compare current best practice in care (i.e. routine inhaler technique training) with the use of the INCA® device for respiratory patients in a community pharmacy setting. Pharmacies are the unit of randomisation and on enrolment to the study they will be allocated by the lead researcher to one of the three study groups (intervention, comparator or control groups) using a computer-generated list of random numbers. Given the nature of the intervention neither pharmacists nor participants can be blinded. The intervention group will receive feedback from the acoustic recording device on inhaler technique and adherence three times over a 6-month period along with inhaler technique training at each of these times. The comparator group will also receive training in inhaler use three times over the 6-month study period but no feedback on their habitual performance. The control group will receive usual care (i.e. the safe supply of medicines and advice on their use). The primary outcome is the rate of participant adherence to their inhaled medication, defined as the proportion of correctly taken doses of medication at the correct

  8. Automatic Calibration of Frequency Compensation System in Computer-Controlled Patch-Clamp Amplifier

    Directory of Open Access Journals (Sweden)

    Jun Xion

    2007-01-01

    Full Text Available Computer-controlled patch-clamp amplifier is a digitally controlled analog device used to record the cellular ion channel currents in electrophysiology research. The inherent bandwidth and performance of the headstage is limited by the stray capacitance and distributed capacitance across the feedback resistors. In order to effectively improve the performance of the headstage, the paper advanced a simplified automatic calibration method of frequency compensation system in resistor-feedback patch-clamp amplifier. The dynamic model of headstage was approximate as a two poles and one zero system in the transfer function by experience and test results, so the dynamic characteristics of the headstage were obtained employing least squares parameter estimation algorithm. Further more, the compensation parameter of high frequency booster can be estimated by the time constant of main pole of headstage. And automatic adjustment of the parameters in transient response correction stage was performed as a least squares fitting problem. The software routine running on the host computer conducted all operations of frequency compensation. Experimental results demonstrate that the simplified automatic calibration method can substantially extend the bandwidth and minimize step response error of headstage.

  9. Automatic text summarization

    CERN Document Server

    Torres Moreno, Juan Manuel

    2014-01-01

    This new textbook examines the motivations and the different algorithms for automatic document summarization (ADS). We performed a recent state of the art. The book shows the main problems of ADS, difficulties and the solutions provided by the community. It presents recent advances in ADS, as well as current applications and trends. The approaches are statistical, linguistic and symbolic. Several exemples are included in order to clarify the theoretical concepts.  The books currently available in the area of Automatic Document Summarization are not recent. Powerful algorithms have been develop

  10. Automatic Camera Control

    DEFF Research Database (Denmark)

    Burelli, Paolo; Preuss, Mike

    2014-01-01

    Automatically generating computer animations is a challenging and complex problem with applications in games and film production. In this paper, we investigate howto translate a shot list for a virtual scene into a series of virtual camera configurations — i.e automatically controlling the virtual...... camera. We approach this problem by modelling it as a dynamic multi-objective optimisation problem and show how this metaphor allows a much richer expressiveness than a classical single objective approach. Finally, we showcase the application of a multi-objective evolutionary algorithm to generate a shot...

  11. Projection and registration device

    NARCIS (Netherlands)

    Verlinden, J.C.

    2009-01-01

    A projection and recording device, provided with a processing and control unit, a memory for recording images and other data, an input/output interface, a controllable camera, a touch screen for the input and display of data and images, a position determining system for determining the position of a

  12. Mechanical design and realization of integrated automatic detection device for low voltage current transformer%低压电流互感器综合自动检测装置机械设计与实现

    Institute of Scientific and Technical Information of China (English)

    穆小星; 曾国华

    2016-01-01

    为解决低压电流互感器型式检验中电气试验人工操作过程频繁、劳动强度大、易发生误操作、电气接触不可靠及存在不安全、效率低、影响检测质量等问题,设计开发出了一种适用于实验室的多功能自动检测装置。装置设计为1个“控制单元”加2个“检测单元”的“1+2”一体化组合式结构,可同时检测两种规格互感器,实现了多品种互感器异步/并行多作业模式检测。结果表明,新型检测装置设计方案可行,运行可靠,达到了预期目标。%In order to solve the problems of frequently manual operation process, large labor intensity, easily occurred error operation and unreliable electric contact in low - voltage current transformer type test which may be unsafe, low-efficient and affects quality inspection, a kind of multi-function inspection device suitable for laboratory automation or auxiliary automation is designed. The device is designed as a "1 + 2" integrated modular structure with a "control unit" and two "inspection units" which can detect two kinds of specifications transformers simultaneously, realizing the asynchronous/ parallel operating modes of various transformers and efficient inspection. The research results show that the novel inspection device is feasible and reliable, and it reaches the expected target.

  13. Cybersecurity for Connected Diabetes Devices.

    Science.gov (United States)

    Klonoff, David C

    2015-04-16

    Diabetes devices are increasingly connected wirelessly to each other and to data-displaying reader devices. Threats to the accurate flow of information and commands may compromise the function of these devices and put their users at risk of health complications. Sound cybersecurity of connected diabetes devices is necessary to maintain confidentiality, integrity, and availability of the data and commands. Diabetes devices can be hacked by unauthorized agents and also by patients themselves to extract data that are not automatically provided by product software. Unauthorized access to connected diabetes devices has been simulated and could happen in reality. A cybersecurity standard designed specifically for connected diabetes devices will improve the safety of these products and increase confidence of users that the products will be secure. © 2015 Diabetes Technology Society.

  14. Interactive Record Linkage

    Directory of Open Access Journals (Sweden)

    2000-12-01

    Full Text Available In order to carry out demographic analyses at individual and group levels, a manual method of linking individual event records from parish registers was developed in the late 1950s. In order to save time and to work with larger areas than small parishes, systems for automatic record linkage were developed a couple of decades later. A third method, an interactive record linkage, named Demolink, has been developed even more recently. The main new feature of the method is the possibility of linking from more than two historical sources simultaneously. This improves the process of sorting out which events belong to which individual life courses. This paper discusses how Demolink was used for record linkage in a large Norwegian parish for the period 1801-1878.

  15. Automatic change detection to facial expressions in adolescents

    DEFF Research Database (Denmark)

    Liu, Tongran; Xiao, Tong; Jiannong, Shi

    2016-01-01

    Adolescence is a critical period for the neurodevelopment of social-emotional processing, wherein the automatic detection of changes in facial expressions is crucial for the development of interpersonal communication. Two groups of participants (an adolescent group and an adult group) were...... recruited to complete an emotional oddball task featuring on happy and one fearful condition. The measurement of event-related potential was carried out via electroencephalography and electrooculography recording, to detect visual mismatch negativity (vMMN) with regard to the automatic detection of changes...... automatic processing on fearful faces than happy faces. The present study indicated that adolescent’s posses stronger automatic detection of changes in emotional expression relative to adults, and sheds light on the neurodevelopment of automatic processes concerning social-emotional information....

  16. Exploring Automatization Processes.

    Science.gov (United States)

    DeKeyser, Robert M.

    1996-01-01

    Presents the rationale for and the results of a pilot study attempting to document in detail how automatization takes place as the result of different kinds of intensive practice. Results show that reaction times and error rates gradually decline with practice, and the practice effect is skill-specific. (36 references) (CK)

  17. Automatic Complexity Analysis

    DEFF Research Database (Denmark)

    Rosendahl, Mads

    1989-01-01

    One way to analyse programs is to to derive expressions for their computational behaviour. A time bound function (or worst-case complexity) gives an upper bound for the computation time as a function of the size of input. We describe a system to derive such time bounds automatically using abstrac...

  18. Brut: Automatic bubble classifier

    Science.gov (United States)

    Beaumont, Christopher; Goodman, Alyssa; Williams, Jonathan; Kendrew, Sarah; Simpson, Robert

    2014-07-01

    Brut, written in Python, identifies bubbles in infrared images of the Galactic midplane; it uses a database of known bubbles from the Milky Way Project and Spitzer images to build an automatic bubble classifier. The classifier is based on the Random Forest algorithm, and uses the WiseRF implementation of this algorithm.

  19. Automatic Dance Lesson Generation

    Science.gov (United States)

    Yang, Yang; Leung, H.; Yue, Lihua; Deng, LiQun

    2012-01-01

    In this paper, an automatic lesson generation system is presented which is suitable in a learning-by-mimicking scenario where the learning objects can be represented as multiattribute time series data. The dance is used as an example in this paper to illustrate the idea. Given a dance motion sequence as the input, the proposed lesson generation…

  20. Automaticity and Reading: Perspectives from the Instance Theory of Automatization.

    Science.gov (United States)

    Logan, Gordon D.

    1997-01-01

    Reviews recent literature on automaticity, defining the criteria that distinguish automatic processing from non-automatic processing, and describing modern theories of the underlying mechanisms. Focuses on evidence from studies of reading and draws implications from theory and data for practical issues in teaching reading. Suggests that…

  1. Automatic voltage imbalance detector

    Science.gov (United States)

    Bobbett, Ronald E.; McCormick, J. Byron; Kerwin, William J.

    1984-01-01

    A device for indicating and preventing damage to voltage cells such as galvanic cells and fuel cells connected in series by detecting sequential voltages and comparing these voltages to adjacent voltage cells. The device is implemented by using operational amplifiers and switching circuitry is provided by transistors. The device can be utilized in battery powered electric vehicles to prevent galvanic cell damage and also in series connected fuel cells to prevent fuel cell damage.

  2. Automatic scaling of critical frequency foF2 from ionograms recorded at São José dos Campos, Brazil: a comparison between Autoscala and UDIDA tools

    Science.gov (United States)

    Pezzopane, Michael; Pillat, Valdir Gil; Fagundes, Paulo Roberto

    2017-02-01

    This paper considers a dataset of ionograms recorded by the CADI ionosonde installed at São José dos Campos (SJC; 23.2°S, 45.9°W, magnetic latitude 14.1°S), Brazil, to compare two autoscaling systems: Autoscala, developed by the Istituto Nazionale di Geofisica e Vulcanologia, and the UDIDA-scaling, developed by the Universidade do Vale do Paraíba. The analysis, focused on the critical frequency of the F2 layer, foF2, shows that the two systems work differently. The UDIDA-scaling gives always a value of foF2 as output, regardless of the presence of the ionogram trace and its definition, while Autoscala tends to reject ionograms for which the digital information is considered insufficient. As a consequence, the UDIDA-scaling can autoscale more foF2 values than Autoscala, but Autoscala can discard a larger number of ionograms for which the trace is unidentifiable. Discussions are made on the accuracy of the foF2 values given as output, as well as on the main shortcomings characterizing the two systems.

  3. 21 CFR 870.2810 - Paper chart recorder.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Paper chart recorder. 870.2810 Section 870.2810...) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Monitoring Devices § 870.2810 Paper chart recorder. (a) Identification. A paper chart recorder is a device used to print on paper, and create a...

  4. Discrete regulation of transfer function of a circuit in experimental data automatic collection and processing systems

    Science.gov (United States)

    Lyubashevskiy, G. S.; Petrov, A. A.; Sanayev, I. A.; Frishberg, V. E.

    1973-01-01

    A device for discrete control of the circuit transfer function in automatic analog data processing systems is reported that coordinates the dynamic range of the vibration level change with the signal range of the processing device output. Experimental verification of the device demonstrates that its maximum control speed does not exceed 0.5 sec for a frequency nonuniformity of about 10%.

  5. 某起动机转速切断装置自动测控系统设计%Automatic Measurement Control System Design for A Starter Rotational Speed Shutoff Device

    Institute of Scientific and Technical Information of China (English)

    徐民

    2012-01-01

    Adopted high speed single chip C8051F020 and VNH3SP30 packaging bridge motor driven chip control electric machine velocity abreast row rotational speed data acquisition, ground measurement control system for the aircraft starter rotational speed shutoff device is developed. Practical operation shows that the system is capable of ensuring proof speed rise slope of consistency, catching cutoff RPM level reliably, stable work and friendly man-machine interface.%采用高速单片机C8051F020和VNH3SP30单封装全桥电机驱动芯片控制电机上升速度并进行转速等数据采集,设计出某飞机起动机部件-转速切断装置组件地面测控系统.实际使用证明该系统能确保转速上升斜率的一致性,捕捉到的切断转速值可靠,并且工作稳定、性价比高、人机界面友好.

  6. 49 CFR 236.739 - Device, acknowledging.

    Science.gov (United States)

    2010-10-01

    ..., MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.739... be forestalled, or by means of which, on a locomotive equipped with an automatic cab signal device, the sounding of the cab indicator can be silenced. ...

  7. Automatic Ultrasound Scanning

    DEFF Research Database (Denmark)

    Moshavegh, Ramin

    Medical ultrasound has been a widely used imaging modality in healthcare platforms for examination, diagnostic purposes, and for real-time guidance during surgery. However, despite the recent advances, medical ultrasound remains the most operator-dependent imaging modality, as it heavily relies...... on the user adjustments on the scanner interface to optimize the scan settings. This explains the huge interest in the subject of this PhD project entitled “AUTOMATIC ULTRASOUND SCANNING”. The key goals of the project have been to develop automated techniques to minimize the unnecessary settings...... on the scanners, and to improve the computer-aided diagnosis (CAD) in ultrasound by introducing new quantitative measures. Thus, four major issues concerning automation of the medical ultrasound are addressed in this PhD project. They touch upon gain adjustments in ultrasound, automatic synthetic aperture image...

  8. Automatic trend estimation

    CERN Document Server

    Vamos¸, C˘alin

    2013-01-01

    Our book introduces a method to evaluate the accuracy of trend estimation algorithms under conditions similar to those encountered in real time series processing. This method is based on Monte Carlo experiments with artificial time series numerically generated by an original algorithm. The second part of the book contains several automatic algorithms for trend estimation and time series partitioning. The source codes of the computer programs implementing these original automatic algorithms are given in the appendix and will be freely available on the web. The book contains clear statement of the conditions and the approximations under which the algorithms work, as well as the proper interpretation of their results. We illustrate the functioning of the analyzed algorithms by processing time series from astrophysics, finance, biophysics, and paleoclimatology. The numerical experiment method extensively used in our book is already in common use in computational and statistical physics.

  9. Automatic food decisions

    DEFF Research Database (Denmark)

    Mueller Loose, Simone

    Consumers' food decisions are to a large extent shaped by automatic processes, which are either internally directed through learned habits and routines or externally influenced by context factors and visual information triggers. Innovative research methods such as eye tracking, choice experiments...... and food diaries allow us to better understand the impact of unconscious processes on consumers' food choices. Simone Mueller Loose will provide an overview of recent research insights into the effects of habit and context on consumers' food choices....

  10. Automatic food decisions

    DEFF Research Database (Denmark)

    Mueller Loose, Simone

    Consumers' food decisions are to a large extent shaped by automatic processes, which are either internally directed through learned habits and routines or externally influenced by context factors and visual information triggers. Innovative research methods such as eye tracking, choice experiments...... and food diaries allow us to better understand the impact of unconscious processes on consumers' food choices. Simone Mueller Loose will provide an overview of recent research insights into the effects of habit and context on consumers' food choices....

  11. Automatic counting and recording unit used for dating by the carbon 14 method; Ensemble de comptage et d'impression automatique utilise pour la datation par la methode du carbone 14

    Energy Technology Data Exchange (ETDEWEB)

    Albertinoli, P.; Galliot, J.; Thommeret, J. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires. Centre Scientifique de Monaco, Monte Carlo

    1969-07-01

    A description is given of the unit used by the 'Centre Scientifique de Monaco' for low-level beta counting and fitted for radioactive dating by the Carbon 14 method. Built entirely by the laboratory in 1964, on the basis of electronic techniques then recent, it has worked without failure since that time. The proportional counter, its high-voltage negative supply, and the counting chains with visual and printing records are detailed by means of 38 figures which reproduce the counter and the electronic circuits. These are contained in two standard 5 U.I structures. The low-voltage power supply of the whole unit is carried out by plus 12 volts and minus 12 volts storage batteries, buffered on a charger connected on the 110 V alternative line. The proportional counter described is filled with CO{sub 2} under one atmosphere pressure and permits the dating of carbonaceous samples with a maximum of 30.000 + 1.000 years (background 3.96 c.p.m. ) within a moderate time (72 hours). (authors) [French] L'ensemble de comptage pour radioactivite beta a bas niveau, destine a la datation par la methode du carbone 14, utilise au Centre Scientifique de Monaco, est decrit. Entierement construit au laboratoire en 1964, sur la base de techniques electroniques alors recentes, il fonctionne depuis cette date sans defaillance. Le compteur proportionnel, son alimentation haute tension negative et les chaines de comptage transistorisees a affichage et impression sont detailles par 38 schemas reproduisant le compteur et les divers circuits electroniques. Ceux-ci sont contenus dans deux chassis standard 5 UI. L'alimentation basse tension de l'ensemble est obtenue par batteries plus 12 et moins 12 volts montees en tampon sur chargeur alimente par le reseau. Le compteur proportionnel decrit, rempli de CO2 sous une atmosphere, permet de dater les echantillons carbones avec un maximum de 30.000 + 1.000 ans (bruit de fond: 3,96 c.p.m. ) en un temps raisonnable (72 heures

  12. Automatization of lexicographic work

    Directory of Open Access Journals (Sweden)

    Iztok Kosem

    2013-12-01

    Full Text Available A new approach to lexicographic work, in which the lexicographer is seen more as a validator of the choices made by computer, was recently envisaged by Rundell and Kilgarriff (2011. In this paper, we describe an experiment using such an approach during the creation of Slovene Lexical Database (Gantar, Krek, 2011. The corpus data, i.e. grammatical relations, collocations, examples, and grammatical labels, were automatically extracted from 1,18-billion-word Gigafida corpus of Slovene. The evaluation of the extracted data consisted of making a comparison between the time spent writing a manual entry and a (semi-automatic entry, and identifying potential improvements in the extraction algorithm and in the presentation of data. An important finding was that the automatic approach was far more effective than the manual approach, without any significant loss of information. Based on our experience, we would propose a slightly revised version of the approach envisaged by Rundell and Kilgarriff in which the validation of data is left to lower-level linguists or crowd-sourcing, whereas high-level tasks such as meaning description remain the domain of lexicographers. Such an approach indeed reduces the scope of lexicographer’s work, however it also results in the ability of bringing the content to the users more quickly.

  13. 21 CFR 892.2040 - Medical image hardcopy device.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Medical image hardcopy device. 892.2040 Section... (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.2040 Medical image hardcopy device. (a) Identification. A medical image hardcopy device is a device that produces a visible printed record of a medical...

  14. Records Management

    Data.gov (United States)

    U.S. Environmental Protection Agency — All Federal Agencies are required to prescribe an appropriate records maintenance program so that complete records are filed or otherwise preserved, records can be...

  15. Multiclassifier fusion of an ultrasonic lip reader in automatic speech recognition

    Science.gov (United States)

    Jennnings, David L.

    1994-12-01

    This thesis investigates the use of two active ultrasonic devices in collecting lip information for performing and enhancing automatic speech recognition. The two devices explored are called the 'Ultrasonic Mike' and the 'Lip Lock Loop.' The devices are tested in a speaker dependent isolated word recognition task with a vocabulary consisting of the spoken digits from zero to nine. Two automatic lip readers are designed and tested based on the output of the ultrasonic devices. The automatic lip readers use template matching and dynamic time warping to determine the best candidate for a given test utterance. The automatic lip readers alone achieve accuracies of 65-89%, depending on the number of reference templates used. Next the automatic lip reader is combined with a conventional automatic speech recognizer. Both classifier level fusion and feature level fusion are investigated. Feature fusion is based on combining the feature vectors prior to dynamic time warping. Classifier fusion is based on a pseudo probability mass function derived from the dynamic time warping distances. The combined systems are tested with various levels of acoustic noise added. In one typical test, at a signal to noise ratio of 0dB, the acoustic recognizer's accuracy alone was 78%, the automatic lip reader's accuracy was 69%, but the combined accuracy was 93%. This experiment demonstrates that a simple ultrasonic lip motion detector, that has an output data rate 12,500 times less than a typical video camera, can significantly improve the accuracy of automatic speech recognition in noise.

  16. Line matching for automatic change detection algorithm

    Science.gov (United States)

    Dhollande, Jérôme; Monnin, David; Gond, Laetitia; Cudel, Christophe; Kohler, Sophie; Dieterlen, Alain

    2012-06-01

    During foreign operations, Improvised Explosive Devices (IEDs) are one of major threats that soldiers may unfortunately encounter along itineraries. Based on a vehicle-mounted camera, we propose an original approach by image comparison to detect signicant changes on these roads. The classic 2D-image registration techniques do not take into account parallax phenomena. The consequence is that the misregistration errors could be detected as changes. According to stereovision principles, our automatic method compares intensity proles along corresponding epipolar lines by extrema matching. An adaptive space warping compensates scale dierence in 3D-scene. When the signals are matched, the signal dierence highlights changes which are marked in current video.

  17. A Flexible and Configurable Architecture for Automatic Control Remote Laboratories

    Science.gov (United States)

    Kalúz, Martin; García-Zubía, Javier; Fikar, Miroslav; Cirka, Luboš

    2015-01-01

    In this paper, we propose a novel approach in hardware and software architecture design for implementation of remote laboratories for automatic control. In our contribution, we show the solution with flexible connectivity at back-end, providing features of multipurpose usage with different types of experimental devices, and fully configurable…

  18. Using an automated emboli detection device in a porcine cardiopulmonary bypass (CPB) model: feasibility and considerations.

    Science.gov (United States)

    Schnürer, Christian; Gyoeri, Georg; Hager, Martina; Jeller, Anton; Moser, Patrizia L; Velik-Salchner, Corinna; Laufer, Guenther; Lorenz, Ingo H; Kolbitsch, Christian

    2007-12-01

    The significant risk of cerebral embolism during cardiopulmonary bypass (CPB) makes monitoring of embolic events advisable already when developing new operation and coagulation management strategies for example in CPB animal models. The present study therefore evaluated in a porcine CPB model the feasibility of bilateral epicarotid Doppler signal recording and the quality of manual or automatic emboli detection. A total of 42 recordings (e.g. right carotid artery (n = 20), left carotid artery (n = 22)) were evaluated. The frequency of emboli counts was comparable for both carotid arteries. Automatic emboli detection, however, found significantly more embolic events per pig than did post-hoc manual off-line analysis of the recordings (172 +/- 217 vs. 13 +/-10). None of the brains, however, showed any emboli or infarction area either in cross-examination or in histological evaluation. In conclusion, the present study showed the feasibility of using an epicarotid Doppler device for bilateral emboli detection in a porcine CPB model. Automatic on-line emboli detection, however, reported more embolic events than did post hoc, off-line manual analysis. Possible reasons for this discrepancy are discussed.

  19. Insertion devices

    CERN Document Server

    Bahrdt, J

    2006-01-01

    The interaction of an insertion device with the electron beam in a storage ring is discussed. The radiation property including brightness, ux and polarization of an ideal and real planar and helical / elliptical device is described. The magnet design of planar, helical, quasiperiodic devices and of devices with a reduced on axis power density are resumed.

  20. Meteorological Automatic Weather Station (MAWS) Instrument Handbook

    Energy Technology Data Exchange (ETDEWEB)

    Holdridge, Donna J [Argonne National Lab. (ANL), Argonne, IL (United States); Kyrouac, Jenni A [Argonne National Lab. (ANL), Argonne, IL (United States)

    2017-08-01

    The Meteorological Automatic Weather Station (MAWS) is a surface meteorological station, manufactured by Vaisala, Inc., dedicated to the balloon-borne sounding system (BBSS), providing surface measurements of the thermodynamic state of the atmosphere and the wind speed and direction for each radiosonde profile. These data are automatically provided to the BBSS during the launch procedure and included in the radiosonde profile as the surface measurements of record for the sounding. The MAWS core set of measurements is: Barometric Pressure (hPa), Temperature (°C), Relative Humidity (%), Arithmetic-Averaged Wind Speed (m/s), and Vector-Averaged Wind Direction (deg). The sensors that collect the core variables are mounted at the standard heights defined for each variable: • Temperature and relative humidity: 2 meters • Barometric pressure: 1 meter • Winds: 10 meters.

  1. Testing Forms in Web Applications Automatically

    Institute of Scientific and Technical Information of China (English)

    XU Lei; XU Baowen

    2006-01-01

    Forms enhance both the dynamic and interactive abilities of Web applications and the system complexity. And it is especially important to test forms completely and thoroughly. Therefore, this paper discusses how to carry out the form testing by different methods in the related testing phases. Namely, at first, automatically abstracting forms in the Web pages by parsing the HTML documents; then, obtaining the testing data with a certain strategies, such as by requirement specifications, by mining users' before input information or by recording mechanism; and next executing the testing actions automatically due to the well-formed test cases; finally, a case study is given to illustrate the convenient and effective of these methods.

  2. Automatic traveltime picking using instantaneous traveltime

    KAUST Repository

    Saragiotis, Christos

    2013-02-08

    Event picking is used in many steps of seismic processing. We present an automatic event picking method that is based on a new attribute of seismic signals, instantaneous traveltime. The calculation of the instantaneous traveltime consists of two separate but interrelated stages. First, a trace is mapped onto the time-frequency domain. Then the time-frequency representation is mapped back onto the time domain by an appropriate operation. The computed instantaneous traveltime equals the recording time at those instances at which there is a seismic event, a feature that is used to pick the events. We analyzed the concept of the instantaneous traveltime and demonstrated the application of our automatic picking method on dynamite and Vibroseis field data.

  3. Automatic modulation recognition of communication signals

    CERN Document Server

    Azzouz, Elsayed Elsayed

    1996-01-01

    Automatic modulation recognition is a rapidly evolving area of signal analysis. In recent years, interest from the academic and military research institutes has focused around the research and development of modulation recognition algorithms. Any communication intelligence (COMINT) system comprises three main blocks: receiver front-end, modulation recogniser and output stage. Considerable work has been done in the area of receiver front-ends. The work at the output stage is concerned with information extraction, recording and exploitation and begins with signal demodulation, that requires accurate knowledge about the signal modulation type. There are, however, two main reasons for knowing the current modulation type of a signal; to preserve the signal information content and to decide upon the suitable counter action, such as jamming. Automatic Modulation Recognition of Communications Signals describes in depth this modulation recognition process. Drawing on several years of research, the authors provide a cr...

  4. A new paradigm for human resuscitation research using intelligent devices.

    Science.gov (United States)

    Babbs, Charles F; Kemeny, Andre E; Quan, Weilun; Freeman, Gary

    2008-06-01

    To develop new methods for studying correlations between the performance and outcome of resuscitation efforts in real-world clinical settings using data recorded by automatic devices, such as automatic external defibrillators (AEDs), and to explore effects of shock timing and chest compression depth in the field. In 695 records of AED use in the pre-hospital setting, continuous compression data were recorded using AEDs capable of measuring sternal motion during compressions, together with timing of delivered shocks and the electrocardiogram. In patients who received at least one shock, putative return of spontaneous circulation (P-ROSC) was defined as a regular, narrow complex electrical rhythm > 40 beats/min with no evidence of chest compressions at the end of the recorded data stream. Transient return of spontaneous circulation (t-ROSC) was defined as the presence of a post-shock organized rhythm > 40 beats/min within 60s, and sustained > or = 30 s. 2x2 contingency tables were constructed to examine the association between these outcomes and dichotomized time of shock delivery or chest compression depth, using the Mood median test for statistical significance. The probability of P-ROSC for first shocks delivered 50 s (p=0.028, one tailed). Similarly, the probability of t-ROSC for shorter times to shock was 29%, compared to the 15% for delayed first shocks (p=0.016). For shocks occurring > 3 min after initiation of rescue attempts, the probability of t-ROSC with pre-shock average compression depth > 5 cm was more than double that with compression depth 5 min, the effect of deeper compressions increased (23.4% versus 8.2%, p=0.008). Much can be learned from analysis of performance data automatically recorded by modern resuscitation devices. Use of the Mood median test of association proved to be sensitive, valid, distribution independent, noise-resistant and also resistant to biases introduced by the inclusion of hopeless cases. Efforts to shorten the time to

  5. An automatic (or semi-automatic) apparatus for the determination of melting curves

    NARCIS (Netherlands)

    Smit, W.M.; Kateman, G.

    1957-01-01

    A description is given of an apparatus for the determination of heating curves by means of the “thin film” method The amount of substance used is about 500 rng The apparatus permits the automatic recording of heating curves with an accuracy of 0.001°C within a range of 0.2°C By simply resetting a re

  6. Device Oriented Project Controller

    Energy Technology Data Exchange (ETDEWEB)

    Dalesio, Leo; Kraimer, Martin

    2013-11-20

    This proposal is directed at the issue of developing control systems for very large HEP projects. A de-facto standard in accelerator control is the Experimental Physics and Industrial Control System (EPICS), which has been applied successfully to many physics projects. EPICS is a channel based system that requires that each channel of each device be configured and controlled. In Phase I, the feasibility of a device oriented extension to the distributed channel database was demonstrated by prototyping a device aware version of an EPICS I/O controller that functions with the current version of the channel access communication protocol. Extensions have been made to the grammar to define the database. Only a multi-stage position controller with limit switches was developed in the demonstration, but the grammar should support a full range of functional record types. In phase II, a full set of record types will be developed to support all existing record types, a set of process control functions for closed loop control, and support for experimental beam line control. A tool to configure these records will be developed. A communication protocol will be developed or extensions will be made to Channel Access to support introspection of components of a device. Performance bench marks will be made on both communication protocol and the database. After these records and performance tests are under way, a second of the grammar will be undertaken.

  7. Automaticity or active control

    DEFF Research Database (Denmark)

    Tudoran, Ana Alina; Olsen, Svein Ottar

    This study addresses the quasi-moderating role of habit strength in explaining action loyalty. A model of loyalty behaviour is proposed that extends the traditional satisfaction–intention–action loyalty network. Habit strength is conceptualised as a cognitive construct to refer to the psychological...... aspects of the construct, such as routine, inertia, automaticity, or very little conscious deliberation. The data consist of 2962 consumers participating in a large European survey. The results show that habit strength significantly moderates the association between satisfaction and action loyalty, and...

  8. Automatic Configuration in NTP

    Institute of Scientific and Technical Information of China (English)

    Jiang Zongli(蒋宗礼); Xu Binbin

    2003-01-01

    NTP is nowadays the most widely used distributed network time protocol, which aims at synchronizing the clocks of computers in a network and keeping the accuracy and validation of the time information which is transmitted in the network. Without automatic configuration mechanism, the stability and flexibility of the synchronization network built upon NTP protocol are not satisfying. P2P's resource discovery mechanism is used to look for time sources in a synchronization network, and according to the network environment and node's quality, the synchronization network is constructed dynamically.

  9. Automatic Complexity Analysis

    DEFF Research Database (Denmark)

    Rosendahl, Mads

    1989-01-01

    One way to analyse programs is to to derive expressions for their computational behaviour. A time bound function (or worst-case complexity) gives an upper bound for the computation time as a function of the size of input. We describe a system to derive such time bounds automatically using abstrac...... interpretation. The semantics-based setting makes it possible to prove the correctness of the time bound function. The system can analyse programs in a first-order subset of Lisp and we show how the system also can be used to analyse programs in other languages....

  10. Metallic spintronic devices

    CERN Document Server

    Wang, Xiaobin

    2014-01-01

    Metallic Spintronic Devices provides a balanced view of the present state of the art of metallic spintronic devices, addressing both mainstream and emerging applications from magnetic tunneling junction sensors and spin torque oscillators to spin torque memory and logic. Featuring contributions from well-known and respected industrial and academic experts, this cutting-edge work not only presents the latest research and developments but also: Describes spintronic applications in current and future magnetic recording devicesDiscusses spin-transfer torque magnetoresistive random-access memory (STT-MRAM) device architectures and modelingExplores prospects of STT-MRAM scaling, such as detailed multilevel cell structure analysisInvestigates spintronic device write and read optimization in light of spintronic memristive effectsConsiders spintronic research directions based on yttrium iron garnet thin films, including spin pumping, magnetic proximity, spin hall, and spin Seebeck effectsProposes unique solutions for ...

  11. Ventricular Assist Device Support

    Science.gov (United States)

    Fasseas, Panayotis; Kutalek, Steven P.; Samuels, Fania L.; Holmes, Elena C.; Samuels, Louis E.

    2002-01-01

    We describe herein the cases of 2 patients who had ventricular arrhythmias. In one, a short-term biventricular assist device, the ABIOMED BVS 5000, was placed because the patient had sustained ventricular tachycardia and could not be weaned from cardiopulmonary bypass. Excellent hemodynamic support was maintained for several days while the antiarrhythmic therapy was maximized. Sinus rhythm was restored, and the patient was successfully weaned from the ventricular assist device. However, the substrate for the arrhythmia persisted, and a recurrence, 1 week later, resulted in the patient's death. In the 2nd patient, the use of an implantable left ventricular assist device was successful in temporarily alleviating the ventricular tachycardia associated with ischemic cardiomyopathy. However, after 2 days of device assistance, the patient experienced a recurrence of the tachycardia, which degenerated into ventricular fibrillation with a marked deterioration in the patient's hemodynamics. The arrhythmia persisted despite multiple attempts at external cardioversion, and internal cardioversion and placement of an automatic implantable cardioverter-defibrillator were necessary. This treatment, along with repeated boluses of amiodarone, led to successful suppression of the arrhythmias, and the patient eventually underwent transplantation. The mechanical hemodynamic support of the circulation by ventricular assist devices was effective in supporting these 2 patients who had sustained ventricular arrhythmias. (Tex Heart Inst J 2002;29:33–6) PMID:11995847

  12. Automatic gray scale correction of video data

    Science.gov (United States)

    Chochia, Pavel A.

    1995-01-01

    Automatic gray scale correction of captured video data (both still and moving images) is one of the least researched questions in the image processing area, in spite of this the question is touched almost in every book concerned with image processing. Classically it is related to the image enhancement, and frequently is classified as histogram modification techniques. Traditionally used algorithms, based on analysis of the image histogram, are not able to decide the problem properly. The investigating difficulties are associated with the absence of a formal quantitative estimate of image quality -- till now the most often used criteria are human visual perception and experience. Hence, the problem of finding out some measurable properties of real images, which might be the basis for automatic building of gray scale correction function (sometimes identified also as gamma-correction function), is still unsolved. In the paper we try to discern some common properties of real images that could help us to evaluate the gray scale image distortion, and, finally, to construct the appropriate correction function to enhance an image. Such a method might be sufficiently used for automatic image processing procedures, like enhancing of medical images, reproducing of pictures in the publishing industry, correcting of remote sensing images, preprocessing of captured data in the computer vision area, and for many other applications. The question of complexity of analysis procedure becomes important when an algorithm is realized in real-time (for example in video input devices, like video cameras).

  13. Unique device identification system. Final rule.

    Science.gov (United States)

    2013-09-24

    The Food and Drug Administration (FDA) is issuing a final rule to establish a system to adequately identify devices through distribution and use. This rule requires the label of medical devices to include a unique device identifier (UDI), except where the rule provides for an exception or alternative placement. The labeler must submit product information concerning devices to FDA's Global Unique Device Identification Database (GUDID), unless subject to an exception or alternative. The system established by this rule requires the label and device package of each medical device to include a UDI and requires that each UDI be provided in a plain-text version and in a form that uses automatic identification and data capture (AIDC) technology. The UDI will be required to be directly marked on the device itself if the device is intended to be used more than once and intended to be reprocessed before each use.

  14. Automatic Weather Station (AWS) Lidar

    Science.gov (United States)

    Rall, Jonathan A.R.; Abshire, James B.; Spinhirne, James D.; Smith, David E. (Technical Monitor)

    2000-01-01

    An autonomous, low-power atmospheric lidar instrument is being developed at NASA Goddard Space Flight Center. This compact, portable lidar will operate continuously in a temperature controlled enclosure, charge its own batteries through a combination of a small rugged wind generator and solar panels, and transmit its data from remote locations to ground stations via satellite. A network of these instruments will be established by co-locating them at remote Automatic Weather Station (AWS) sites in Antarctica under the auspices of the National Science Foundation (NSF). The NSF Office of Polar Programs provides support to place the weather stations in remote areas of Antarctica in support of meteorological research and operations. The AWS meteorological data will directly benefit the analysis of the lidar data while a network of ground based atmospheric lidar will provide knowledge regarding the temporal evolution and spatial extent of Type la polar stratospheric clouds (PSC). These clouds play a crucial role in the annual austral springtime destruction of stratospheric ozone over Antarctica, i.e. the ozone hole. In addition, the lidar will monitor and record the general atmospheric conditions (transmission and backscatter) of the overlying atmosphere which will benefit the Geoscience Laser Altimeter System (GLAS). Prototype lidar instruments have been deployed to the Amundsen-Scott South Pole Station (1995-96, 2000) and to an Automated Geophysical Observatory site (AGO 1) in January 1999. We report on data acquired with these instruments, instrument performance, and anticipated performance of the AWS Lidar.

  15. Keeping electronic records secure.

    Science.gov (United States)

    Easton, David

    2013-10-01

    Are electronic engineering maintenance records relating to the hospital estate or a medical device as important as electronic patient records? Computer maintenance management systems (CMMS) are increasingly being used to manage all-round maintenance activities. However, the accuracy of the data held on them, and a level of security that prevents tampering with records, or other unauthorised changes to them to 'cover' poor practice, are both essential, so that, should an individual be injured or killed on hospital grounds, and a law suit follow, the estates team can be confident that it has accurate data to prove it has fulfilled its duty of care. Here David Easton MSc CEng FIHEEM MIET, director of Zener Engineering Services, and chair of IHEEM's Medical Devices Advisory Group, discusses the issues around maintenance databases, and the security and integrity of maintenance data.

  16. Automaticity or active control

    DEFF Research Database (Denmark)

    Tudoran, Ana Alina; Olsen, Svein Ottar

    This study addresses the quasi-moderating role of habit strength in explaining action loyalty. A model of loyalty behaviour is proposed that extends the traditional satisfaction–intention–action loyalty network. Habit strength is conceptualised as a cognitive construct to refer to the psychologic......, respectively, between intended loyalty and action loyalty. At high levels of habit strength, consumers are more likely to free up cognitive resources and incline the balance from controlled to routine and automatic-like responses.......This study addresses the quasi-moderating role of habit strength in explaining action loyalty. A model of loyalty behaviour is proposed that extends the traditional satisfaction–intention–action loyalty network. Habit strength is conceptualised as a cognitive construct to refer to the psychological...... aspects of the construct, such as routine, inertia, automaticity, or very little conscious deliberation. The data consist of 2962 consumers participating in a large European survey. The results show that habit strength significantly moderates the association between satisfaction and action loyalty, and...

  17. Comparison of automatic control systems

    Science.gov (United States)

    Oppelt, W

    1941-01-01

    This report deals with a reciprocal comparison of an automatic pressure control, an automatic rpm control, an automatic temperature control, and an automatic directional control. It shows the difference between the "faultproof" regulator and the actual regulator which is subject to faults, and develops this difference as far as possible in a parallel manner with regard to the control systems under consideration. Such as analysis affords, particularly in its extension to the faults of the actual regulator, a deep insight into the mechanism of the regulator process.

  18. Implementing electronic identification for performance recording in sheep: II. Cost-benefit analysis in meat and dairy farms.

    Science.gov (United States)

    Ait-Saidi, A; Caja, G; Salama, A A K; Milán, M J

    2014-12-01

    Costs and secondary benefits of implementing electronic identification (e-ID) for performance recording (i.e., lambing, body weight, inventory, and milk yield) in dairy and meat ewes were assessed by using the results from a previous study in which manual (M), semiautomatic (SA), and automatic (AU) data collection systems were compared. Ewes were identified with visual ear tags and electronic rumen boluses. The M system used visual identification, on-paper data recording, and manual data uploading to a computer. The SA system used e-ID with a handheld reader in which performances were typed and automatic uploaded to a computer. The use of a personal digital assistant (PDA) for recording and automatic data uploading, which transformed M in a SA system, was also considered. The AU system was only used for BW recording and consisted of e-ID, automatic data recording in an electronic scale, and uploading to a computer. The cost-benefit study was applied to 2 reference sheep farms of 700 meat ewes, under extensive or intensive production systems, and of 400 dairy ewes, practicing once- or twice-a-day machine milkings. Sensitivity analyses under voluntary and mandatory e-ID scenarios were also included. Benefits of using e-ID for SA or AU performance recording mainly depended on sheep farm purpose, number of test days per year, handheld reader and PDA prices, and flock size. Implementing e-ID for SA and AU performance recording saved approximately 50% of the time required by the M system, and increased the reliability of the data collected. Use of e-ID increased the cost of performance recording in a voluntary e-ID scenario, paying only partially the investment made (15 to 70%). For the mandatory e-ID scenario, in which the cost of e-ID devices was not included, savings paid 100% of the extra costs needed for using e-ID in all farm types and conditions. In both scenarios, the reader price was the most important extra cost (40 to 90%) for implementing e-ID in sheep farms

  19. [Automatic registration of patients in digital radiology facilities: dosimetric record].

    Science.gov (United States)

    Ten Morón, J I; Vañó Carruana, E; Arrazola García, J

    2013-12-01

    There is a consensus in the international community regarding both the need for and benefits of systematic registration and planning of the dosage indicators in patients exposed to ionizing radiation. The main interest is in the registration and follow-up of the techniques and procedures that can involve the greatest risk from exposure to radiation. This register should be planned to include the structure and tools necessary to take the radiological safety of the patients into account, enabling the physicians requesting the studies to access the most important information in the register so they can appropriately justify the request for additional studies. Likewise, it should be considered a priority to establish diagnostic reference levels for the different magnitudes that are defined in function of the modality and techniques used; this information is useful for the staff involved in procedures that use ionizing radiation. Copyright © 2013 SERAM. Published by Elsevier Espana. All rights reserved.

  20. Sequentiality of daily life physiology: an automatized segmentation approach.

    Science.gov (United States)

    Fontecave-Jallon, J; Baconnier, P; Tanguy, S; Eymaron, M; Rongier, C; Guméry, P Y

    2013-09-01

    Based on the hypotheses that (1) a physiological organization exists inside each activity of daily life and (2) the pattern of evolution of physiological variables is characteristic of each activity, pattern changes should be detected on daily life physiological recordings. The present study aims at investigating whether a simple segmentation method can be set up to detect pattern changes on physiological recordings carried out during daily life. Heart and breathing rates and skin temperature have been non-invasively recorded in volunteers following scenarios made of "daily life" steps (13 records). An observer, undergoing the scenario, wrote down annotations during the recording time. Two segmentation procedures have been compared to the annotations, a visual inspection of the signals and an automatic program based on a trends detection algorithm applied to one physiological signal (skin temperature). The annotations resulted in a total number of 213 segments defined on the 13 records, the best visual inspection detected less segments (120) than the automatic program (194). If evaluated in terms of the number of correspondences between the times marks given by annotations and those resulting from both physiologically based segmentations, the automatic program was better than the visual inspection. The mean time lags between annotation and program time marks remain variables time series recorded in common life conditions exhibit different successive patterns that can be detected by a simple trends detection algorithm. Theses sequences are coherent with the corresponding annotated activity.

  1. Capacitance sensor for automatic soil retreat measurements

    Institute of Scientific and Technical Information of China (English)

    GU Jun; YANG Juan; YIN Wu-liang; WANG Chao; WANG Hua-xiang; LIU Ze; CHENG Su-sen

    2008-01-01

    To continuously monitor the soil retreat due to erosion in field, provide valuable information about the erosion processes and overcome the disadvantages of inefficiency, high time-consumption and labor-intensity of existing methods, this paper describes a novel capacitance sensor for measuring the soil retreat. A capaci-tance sensor based probe is proposed, which can measure the depth of the soil around it automatically and the data can be recorded by a data logger. Experimental results in the lab verify its usefulness.

  2. Automatic Generation of Indoor Navigable Space Using a Point Cloud and its Scanner Trajectory

    Science.gov (United States)

    Staats, B. R.; Diakité, A. A.; Voûte, R. L.; Zlatanova, S.

    2017-09-01

    Automatic generation of indoor navigable models is mostly based on 2D floor plans. However, in many cases the floor plans are out of date. Buildings are not always built according to their blue prints, interiors might change after a few years because of modified walls and doors, and furniture may be repositioned to the user's preferences. Therefore, new approaches for the quick recording of indoor environments should be investigated. This paper concentrates on laser scanning with a Mobile Laser Scanner (MLS) device. The MLS device stores a point cloud and its trajectory. If the MLS device is operated by a human, the trajectory contains information which can be used to distinguish different surfaces. In this paper a method is presented for the identification of walkable surfaces based on the analysis of the point cloud and the trajectory of the MLS scanner. This method consists of several steps. First, the point cloud is voxelized. Second, the trajectory is analysing and projecting to acquire seed voxels. Third, these seed voxels are generated into floor regions by the use of a region growing process. By identifying dynamic objects, doors and furniture, these floor regions can be modified so that each region represents a specific navigable space inside a building as a free navigable voxel space. By combining the point cloud and its corresponding trajectory, the walkable space can be identified for any type of building even if the interior is scanned during business hours.

  3. Shaping electromagnetic waves using software-automatically-designed metasurfaces.

    Science.gov (United States)

    Zhang, Qian; Wan, Xiang; Liu, Shuo; Yuan Yin, Jia; Zhang, Lei; Jun Cui, Tie

    2017-06-15

    We present a fully digital procedure of designing reflective coding metasurfaces to shape reflected electromagnetic waves. The design procedure is completely automatic, controlled by a personal computer. In details, the macro coding units of metasurface are automatically divided into several types (e.g. two types for 1-bit coding, four types for 2-bit coding, etc.), and each type of the macro coding units is formed by discretely random arrangement of micro coding units. By combining an optimization algorithm and commercial electromagnetic software, the digital patterns of the macro coding units are optimized to possess constant phase difference for the reflected waves. The apertures of the designed reflective metasurfaces are formed by arranging the macro coding units with certain coding sequence. To experimentally verify the performance, a coding metasurface is fabricated by automatically designing two digital 1-bit unit cells, which are arranged in array to constitute a periodic coding metasurface to generate the required four-beam radiations with specific directions. Two complicated functional metasurfaces with circularly- and elliptically-shaped radiation beams are realized by automatically designing 4-bit macro coding units, showing excellent performance of the automatic designs by software. The proposed method provides a smart tool to realize various functional devices and systems automatically.

  4. Recording and podcasting of lectures for students of medical school.

    Science.gov (United States)

    Brunet, Pierre; Cuggia, Marc; Le Beux, Pierre

    2011-01-01

    Information and communication technology (ICT) becomes an important way for the knowledge transmission, especially in the field of medicine. Podcasting (mobile broadcast content) has recently emerged as an efficient tool for distributing information towards professionals, especially for e-learning contents.The goal of this work is to implement software and hardware tools for collecting medical lectures at its source by direct recording (halls and classrooms) and provide the automatic delivery of these resources for students on different type of devices (computer, smartphone or videogames console). We describe the overall architecture and the methods used by medical students to master this technology in their daily activities. We highlight the benefits and the limits of the Podcast technologies for medical education.

  5. Photovoltaic device

    Energy Technology Data Exchange (ETDEWEB)

    Reese, Jason A; Keenihan, James R; Gaston, Ryan S; Kauffmann, Keith L; Langmaid, Joseph A; Lopez, Leonardo; Maak, Kevin D; Mills, Michael E; Ramesh, Narayan; Teli, Samar R

    2017-03-21

    The present invention is premised upon an improved photovoltaic device ("PV device"), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof.

  6. Photovoltaic device

    Science.gov (United States)

    Reese, Jason A.; Keenihan, James R.; Gaston, Ryan S.; Kauffmann, Keith L.; Langmaid, Joseph A.; Lopez, Leonardo C.; Maak, Kevin D.; Mills, Michael E.; Ramesh, Narayan; Teli, Samar R.

    2015-06-02

    The present invention is premised upon an improved photovoltaic device ("PV device"), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof.

  7. Concentration device

    DEFF Research Database (Denmark)

    2013-01-01

    A concentration device (2) for filter filtration concentration of particles (4) from a volume of a fluid (6). The concentration device (2) comprises a filter (8) configured to filter particles (4) of a predefined size in the volume of the fluid (6). The concentration device (2) comprises...

  8. Photovoltaic device

    Science.gov (United States)

    Reese, Jason A.; Keenihan, James R.; Gaston, Ryan S.; Kauffmann, Keith L.; Langmaid, Joseph A.; Lopez, Leonardo C.; Maak, Kevin D.; Mills, Michael E.; Ramesh, Narayan; Teli, Samar R.

    2015-09-01

    The present invention is premised upon an improved photovoltaic device ("PV device"), more particularly to an improved photovoltaic device (10) with a multilayered photovoltaic cell assembly (100) and a body portion (200) joined at an interface region (410) and including an intermediate layer (500), at least one interconnecting structural member (1500), relieving feature (2500), unique component geometry, or any combination thereof.

  9. Automatic Fixture Planning

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    Fixture planning is a crucial problem in the field of fixture design. In this paper, the research scope and research methods of the computer-aided fixture planning are presented. Based on positioning principles of typical workparts, an ANN algorithm, namely Hopfield algorithm, is adopted for the automatic fixture planning. Also, this paper leads a deep research into the selection of positioning and clamping surfaces (or points) on workparts using positioning-clamping-surface-selecting rules and matrix evaluation of deterministic workpart positioning. In the end of this paper, the methods to select positioning and clamping elements from database and the layout algorithm to assemble the selected fixture elements into a tangible fixture are developed.

  10. An anesthesia information system for monitoring and record keeping during surgical anesthesia.

    Science.gov (United States)

    Klocke, H; Trispel, S; Rau, G; Hatzky, U; Daub, D

    1986-10-01

    We have developed an anesthesia information system (AIS) that supports the anesthesiologist in monitoring and recording during a surgical operation. In development of the system, emphasis was placed on providing an anesthesiologist-computer interface that can be adapted to typical situations during anesthesia and to individual user behavior. One main feature of this interface is the integration of the input and output of information. The only device for interaction between the anesthesiologist and the AIS is a touch-sensitive, high-resolution color display screen. The anesthesiologist enters information by touching virtual function keys displayed on the screen. A data window displays all data generated over time, such as automatically recorded vital signs, including blood pressure, heart rate, and rectal and esophageal temperatures, and manually entered variables, such as administered drugs, and ventilator settings. The information gathered by the AIS is presented on the cathode ray tube in several pages. A main distributor page gives an overall view of the content of every work page. A one-page record of the anesthesia is automatically plotted on a multicolor digital plotter during the operation. An example of the use of the AIS is presented from a field test of the system during which it was evaluated in the operating room without interfering with the ongoing operation. Medical staff who used the AIS imitated the anesthesiologist's recording and information search behavior but did not have responsibility for the conduct of the anesthetic.

  11. Nature Conservation Drones for Automatic Localization and Counting of Animals

    NARCIS (Netherlands)

    J.C. van Gemert; C.R. Verschoor; P. Mettes; K. Epema; L.P. Koh; S. Wich

    2014-01-01

    This paper is concerned with nature conservation by automatically monitoring animal distribution and animal abundance. Typically, such conservation tasks are performed manually on foot or after an aerial recording from a manned aircraft. Such manual approaches are expensive, slow and labor intensive

  12. Nature Conservation Drones for Automatic Localization and Counting of Animals

    NARCIS (Netherlands)

    van Gemert, J.C.; Verschoor, C.R.; Mettes, P.; Epema, K.; Koh, L.P.; Wich, S.; Agapito, L.; Bronstein, M.M.; Rother, C.

    2015-01-01

    This paper is concerned with nature conservation by automatically monitoring animal distribution and animal abundance. Typically, such conservation tasks are performed manually on foot or after an aerial recording from a manned aircraft. Such manual approaches are expensive, slow and labor

  13. An automatic solution-sample-changing peristaltic device at biological small angle X-ray scattering beamline%一种生物X射线小角散射光束线站自动换样溶液蠕动装置

    Institute of Scientific and Technical Information of China (English)

    洪春霞; 周平; 李怡雯; 曾建荣; 边风刚; 王劼

    2016-01-01

    Background: Protein structure in solution can be studied by small-angle X-ray scattering techniques at synchrotron radiation facilities. However, the structure of protein is prone to vary as the radiation damage induced by the intense X-ray beam during the experiments. Purpose:This study aims to develop an automatic solution-sample-changing peristaltic device for biological small angle X-ray scattering experiment. Methods: The injection pump PSD/4 of Hamilton is applied to eliminate the radiation damage of protein by minimizing the X-ray irradiation time of unit volume. In addition, automatic sample-changing, retrieving and cleaning was realized by the coordinated control of PSD/4, the alignment control stage and the sample/buffer control stage. Thus the experiment efficiency is improved. Results: The scattering curves and gyration radius of lysozyme under stationary collection mode and peristaltic collection mode were measured by experiments carried out at biological small angle X-ray scattering beamline of Shanghai Synchrotron Radiation Facility (SSRF). And results show that this device can prevent radiation damage of sample efficiently. Conclusion:The designed functionalities have been achieved as expected.%利用同步辐射X射线小角散射技术可以研究溶液中蛋白质的结构信息。但是在实验过程中,高通量的X 射线易造成蛋白质的辐射损伤,发生结构变化。本文介绍了一种自动换样溶液样品蠕动装置,在实验过程中利用Hamilton的PSD/4注射泵控制样品上下运动,减小单位体积照射时间以降低X射线对蛋白质的辐射损伤。此外,通过对注射泵、准直调节台和样品/缓冲液支撑台的协调控制实现了自动换样、回样和清洗功能,提高了实验效率。在上海光源生物X射线小角散射实验站进行了实验,通过对静止模式和蠕动模式下溶菌酶的散射曲线及回旋半径的测量,表明该装置可达到很好的防辐射

  14. PULSE AMPLITUDE DISTRIBUTION RECORDER

    Science.gov (United States)

    Cowper, G.

    1958-08-12

    A device is described for automatica1ly recording pulse annplitude distribution received from a counter. The novelty of the device consists of the over-all arrangement of conventional circuit elements to provide an easy to read permanent record of the pulse amplitude distribution during a certain time period. In the device a pulse analyzer separates the pulses according to annplitude into several channels. A scaler in each channel counts the pulses and operates a pen marker positioned over a drivable recorder sheet. Since the scalers in each channel have the sanne capacity, the control circuitry permits counting of the incoming pulses until one scaler reaches capacity, whereupon the input is removed and an internal oscillator supplies the necessary pulses to fill up the other scalers. Movement of the chart sheet is initiated wben the first scaler reaches capacity to thereby give a series of marks at spacings proportional to the time required to fill the remaining scalers, and accessory equipment marks calibration points on the recorder sheet to facilitate direct reading of the number of external pulses supplied to each scaler.

  15. Design and Improvement of Automatic Nitrogen Protective Sliding Plate Kiln in Mn-Zn Soft Magnetic Ferrite Main Sintering Device%锰锌软磁铁氧体主要烧结设备全自动氮气保护推板窑设计改进

    Institute of Scientific and Technical Information of China (English)

    徐仲达

    2016-01-01

    在我国锰锌软磁铁氧体主要烧结设备的规模化生产中,全自动氮气保护推板窑系统不能满足烧成工艺制度的严格要求,问题出在结构设计方面。作者通过多年的实践总结,分析了自动氮气保护推板窑工艺,并以此为基础提出了结构性的改进措施,改善了烧成工艺的可控性和精确度。实践证明:新系统可满足大件和高性能锰锌软磁铁氧体产品的规模化生产。研究能够为我国软磁铁氧体行业的升级换代提供重要思路。%In the existing scale production of Mn-Zn soft magnetic ferrite main sintering device, structure design of automatic Nitrogen protective sliding plate kiln cannot meet the actual requirements of sintering process system. Based on author’s practical experiments in many years, corresponding measures of design and improvement are put forward, improving the controllability and accuracy of sintering process system, and also satisfying scale production of Mn-Zn soft magnetic ferrite with large size and high performance. The research can provide essential ideas for upgrade and update of Mn-Zn soft magnetic ferrite field in China.

  16. Research on key control technologies of all-position automatic welding machine

    Institute of Scientific and Technical Information of China (English)

    Zeng Huilin; Du Zeyu; Ma Jing; Huang Fuxiang

    2009-01-01

    The pipeline all-position automatic welding machine system is a special welding system for automatically welding circumferential joint of pipeline on site, which has been widely used to the long-distance pipeline construction projects due to the advantages of automatic control for welding parameters at all-position, moving speed of bugs and operating. In this paper, the key control technologies of PAWM all-position automatic welding machine (developed by Pipeline Research Institute of CNPC) such as the automatic control system, control software, personal digital assistant (PDA) software and complex programmable logic device(CPLD) program as well as the control method of welding parameter have been described detailedly. With the higher welding quality, higher welding efficiency and lower labor intensity, PAWM all-position automatic welding machine has been successfully applied in many famous pipeline construction projects.

  17. A coke preparedness monitoring device

    Energy Technology Data Exchange (ETDEWEB)

    Sazanov, V.F.; Bannikov, L.S.; Chepurnykh, S.F.; Dobromobov, Yu.I.; Pankrat' ev, O.N.; Pinchuk, S.I.; Shifrin, S.I.

    1982-01-01

    A coke preparedness monitoring device for a door extractor contains sounding electrodes, a stabilized voltage source and a meter to record the electrical resistance of the coke. In order to provide monitoring capacity of the preparedness of the coke in the flow and to increase measuring accuracy the device contains sounding electrodes in the coke-treating door extractor; these are connected together with the recorder via an additional stabilized power supply to a stabilized voltage source.

  18. Medical device regulation for manufacturers.

    Science.gov (United States)

    McAllister, P; Jeswiet, J

    2003-01-01

    Manufacturers of medical devices are held to a higher standard than manufacturers of many other products due to the potential severity of the consequences of introducing inferior or unsafe products to the market-place. In Canada, the medical device industry is regulated by Health Canada under the Medical Device Regulations of the Food and Drug Act. The Medical Device Regulations define requirements of medical device design, development and manufacture to ensure that products reaching the public are safe and effective. Health Canada also requires that medical device manufacturers maintain distribution records to ensure that devices can be traced to the source and consumers can be contacted successfully in the event that a device is recalled. Medical devices exported from Canada must be compliant with the regulations of the country of import. The Canadian Medical Device Regulations were based on the Medical Device Directives of the European Union thus facilitating approval of Canadian devices for the European market. The United States Food and Drug Administration has separate and distinct requirements for safety and quality of medical devices. While effort has been made to facilitate approval and trade of Canadian medical devices in the United States and the European Union, obtaining approval from multiple regulatory bodies can result in increased device development time and cost. The Global Harmonization Task Force is an organization composed of members from Japanese, Australian, European, Canadian and American medical device regulatory bodies. This organization was formed with the objective of harmonizing medical device regulations in an effort to facilitate international trade and standardize the quality of medical devices available to all countries. This paper discusses the requirements that must be met by manufacturers when designing and manufacturing medical devices.

  19. Speech Recognition on Mobile Devices

    DEFF Research Database (Denmark)

    Tan, Zheng-Hua; Lindberg, Børge

    2010-01-01

    The enthusiasm of deploying automatic speech recognition (ASR) on mobile devices is driven both by remarkable advances in ASR technology and by the demand for efficient user interfaces on such devices as mobile phones and personal digital assistants (PDAs). This chapter presents an overview of ASR...... in the mobile context covering motivations, challenges, fundamental techniques and applications. Three ASR architectures are introduced: embedded speech recognition, distributed speech recognition and network speech recognition. Their pros and cons and implementation issues are discussed. Applications within...... command and control, text entry and search are presented with an emphasis on mobile text entry....

  20. An Automatic Video Meteor Observation Using UFO Capture at the Showa Station

    Science.gov (United States)

    Fujiwara, Y.; Nakamura, T.; Ejiri, M.; Suzuki, H.

    2012-05-01

    The goal of our study is to clarify meteor activities in the southern hemi-sphere by continuous optical observations with video cameras with automatic meteor detection and recording at Syowa station, Antarctica.

  1. Channel selection for automatic seizure detection

    DEFF Research Database (Denmark)

    Duun-Henriksen, Jonas; Kjaer, Troels Wesenberg; Madsen, Rasmus Elsborg

    2012-01-01

    Objective: To investigate the performance of epileptic seizure detection using only a few of the recorded EEG channels and the ability of software to select these channels compared with a neurophysiologist. Methods: Fifty-nine seizures and 1419 h of interictal EEG are used for training and testing...... of an automatic channel selection method. The characteristics of the seizures are extracted by the use of a wavelet analysis and classified by a support vector machine. The best channel selection method is based upon maximum variance during the seizure. Results: Using only three channels, a seizure detection...... sensitivity of 96% and a false detection rate of 0.14/h were obtained. This corresponds to the performance obtained when channels are selected through visual inspection by a clinical neurophysiologist, and constitutes a 4% improvement in sensitivity compared to seizure detection using channels recorded...

  2. Anti-Theft Automatic Metering Interface

    Directory of Open Access Journals (Sweden)

    Abhijeet Das

    2015-08-01

    Full Text Available Abstract Electricity is now more than a necessity and its need is increasing day by day resulting in power theft and power scarcity. The purpose of this project is to provide automatic control and monitoring of the Domestic Energy Meter enabling the Electricity Department to read meter readings without anyone visiting each house and also prevent electricity theft .This can be achieved by the use of a Microcontroller Unit that continuously monitors and records the Energy Meter readings in its permanent memory location. This system also makes use of a GSM module for remote monitoring and control of Energy Meter with the help of an interfacing circuitry. The Microcontroller based system continuously records the readings and the live meter reading can be sent to the Electricity department after a count period or on request. This system also can be used to disconnect the power supply to the house in case of non-payment of electricity bills. The Substation will be the receiving end. The data received is fed to a microcontroller at the Substation which will automatically calculate the bill based on tariff provider and display it.

  3. Green mobile devices and networks energy optimization and scavenging techniques

    CERN Document Server

    Venkataraman, Hrishikesh

    2012-01-01

    While battery capacity fails to keep up with the power-demanding features of the latest mobile devices, powering the functional advancement of wireless devices requires a revolution in the concept of battery life and recharge capability. Future hand-held devices and wireless networks should be able to recharge themselves automatically from the environment and optimize their energy consumption. Green Mobile Devices and Networks: Energy Optimization and Scavenging Techniques provides insights into the principles and technical challenges behind both automatic optimization of energy consumption an

  4. Robert Recorde

    CERN Document Server

    Williams, Jack

    2011-01-01

    The 16th-Century intellectual Robert Recorde is chiefly remembered for introducing the equals sign into algebra, yet the greater significance and broader scope of his work is often overlooked. This book presents an authoritative and in-depth analysis of the man, his achievements and his historical importance. This scholarly yet accessible work examines the latest evidence on all aspects of Recorde's life, throwing new light on a character deserving of greater recognition. Topics and features: presents a concise chronology of Recorde's life; examines his published works; describes Recorde's pro

  5. Automatic Kurdish Dialects Identification

    Directory of Open Access Journals (Sweden)

    Hossein Hassani

    2016-02-01

    Full Text Available Automatic dialect identification is a necessary Lan guage Technology for processing multi- dialect languages in which the dialects are linguis tically far from each other. Particularly, this becomes crucial where the dialects are mutually uni ntelligible. Therefore, to perform computational activities on these languages, the sy stem needs to identify the dialect that is the subject of the process. Kurdish language encompasse s various dialects. It is written using several different scripts. The language lacks of a standard orthography. This situation makes the Kurdish dialectal identification more interesti ng and required, both form the research and from the application perspectives. In this research , we have applied a classification method, based on supervised machine learning, to identify t he dialects of the Kurdish texts. The research has focused on two widely spoken and most dominant Kurdish dialects, namely, Kurmanji and Sorani. The approach could be applied to the other Kurdish dialects as well. The method is also applicable to the languages which are similar to Ku rdish in their dialectal diversity and differences.

  6. Automatic aircraft recognition

    Science.gov (United States)

    Hmam, Hatem; Kim, Jijoong

    2002-08-01

    Automatic aircraft recognition is very complex because of clutter, shadows, clouds, self-occlusion and degraded imaging conditions. This paper presents an aircraft recognition system, which assumes from the start that the image is possibly degraded, and implements a number of strategies to overcome edge fragmentation and distortion. The current vision system employs a bottom up approach, where recognition begins by locating image primitives (e.g., lines and corners), which are then combined in an incremental fashion into larger sets of line groupings using knowledge about aircraft, as viewed from a generic viewpoint. Knowledge about aircraft is represented in the form of whole/part shape description and the connectedness property, and is embedded in production rules, which primarily aim at finding instances of the aircraft parts in the image and checking the connectedness property between the parts. Once a match is found, a confidence score is assigned and as evidence in support of an aircraft interpretation is accumulated, the score is increased proportionally. Finally a selection of the resulting image interpretations with the highest scores, is subjected to competition tests, and only non-ambiguous interpretations are allowed to survive. Experimental results demonstrating the effectiveness of the current recognition system are given.

  7. Microfluidic Device

    Science.gov (United States)

    Tai, Yu-Chong (Inventor); Zheng, Siyang (Inventor); Lin, Jeffrey Chun-Hui (Inventor); Kasdan, Harvey L. (Inventor)

    2017-01-01

    Described herein are particular embodiments relating to a microfluidic device that may be utilized for cell sensing, counting, and/or sorting. Particular aspects relate to a microfabricated device that is capable of differentiating single cell types from dense cell populations. One particular embodiment relates a device and methods of using the same for sensing, counting, and/or sorting leukocytes from whole, undiluted blood samples.

  8. Electronic amplifiers for automatic compensators

    CERN Document Server

    Polonnikov, D Ye

    1965-01-01

    Electronic Amplifiers for Automatic Compensators presents the design and operation of electronic amplifiers for use in automatic control and measuring systems. This book is composed of eight chapters that consider the problems of constructing input and output circuits of amplifiers, suppression of interference and ensuring high sensitivity.This work begins with a survey of the operating principles of electronic amplifiers in automatic compensator systems. The succeeding chapters deal with circuit selection and the calculation and determination of the principal characteristics of amplifiers, as

  9. The Automatic Telescope Network (ATN)

    CERN Document Server

    Mattox, J R

    1999-01-01

    Because of the scheduled GLAST mission by NASA, there is strong scientific justification for preparation for very extensive blazar monitoring in the optical bands to exploit the opportunity to learn about blazars through the correlation of variability of the gamma-ray flux with flux at lower frequencies. Current optical facilities do not provide the required capability.Developments in technology have enabled astronomers to readily deploy automatic telescopes. The effort to create an Automatic Telescope Network (ATN) for blazar monitoring in the GLAST era is described. Other scientific applications of the networks of automatic telescopes are discussed. The potential of the ATN for science education is also discussed.

  10. Long recording sequences: how to track the intra-individual variability of acoustic signals.

    Directory of Open Access Journals (Sweden)

    Thierry Lengagne

    Full Text Available Recently developed acoustic technologies - like automatic recording units - allow the recording of long sequences in natural environments. These devices are used for biodiversity survey but they could also help researchers to estimate global signal variability at various (individual, population, species scales. While sexually-selected signals are expected to show a low intra-individual variability at relatively short time scale, this variability has never been estimated so far. Yet, measuring signal variability in controlled conditions should prove useful to understand sexual selection processes and should help design acoustic sampling schedules and to analyse long call recordings. We here use the overall call production of 36 male treefrogs (Hyla arborea during one night to evaluate within-individual variability in call dominant frequency and to test the efficiency of different sampling methods at capturing such variability. Our results confirm that using low number of calls underestimates call dominant frequency variation of about 35% in the tree frog and suggest that the assessment of this variability is better by using 2 or 3 short and well-distributed records than by using samples made of consecutive calls. Hence, 3 well-distributed 2-minutes records (beginning, middle and end of the calling period are sufficient to capture on average all the nightly variability, whereas a sample of 10 000 consecutive calls captures only 86% of it. From a biological point of view, the call dominant frequency variability observed in H. arborea (116Hz on average but up to 470 Hz of variability during the course of the night for one male challenge about its reliability in mate quality assessment. Automatic acoustic recording units will provide long call sequences in the near future and it will be then possible to confirm such results on large samples recorded in more complex field conditions.

  11. Method for automatic detection of wheezing in lung sounds

    Directory of Open Access Journals (Sweden)

    R.J. Riella

    2009-07-01

    Full Text Available The present report describes the development of a technique for automatic wheezing recognition in digitally recorded lung sounds. This method is based on the extraction and processing of spectral information from the respiratory cycle and the use of these data for user feedback and automatic recognition. The respiratory cycle is first pre-processed, in order to normalize its spectral information, and its spectrogram is then computed. After this procedure, the spectrogram image is processed by a two-dimensional convolution filter and a half-threshold in order to increase the contrast and isolate its highest amplitude components, respectively. Thus, in order to generate more compressed data to automatic recognition, the spectral projection from the processed spectrogram is computed and stored as an array. The higher magnitude values of the array and its respective spectral values are then located and used as inputs to a multi-layer perceptron artificial neural network, which results an automatic indication about the presence of wheezes. For validation of the methodology, lung sounds recorded from three different repositories were used. The results show that the proposed technique achieves 84.82% accuracy in the detection of wheezing for an isolated respiratory cycle and 92.86% accuracy for the detection of wheezes when detection is carried out using groups of respiratory cycles obtained from the same person. Also, the system presents the original recorded sound and the post-processed spectrogram image for the user to draw his own conclusions from the data.

  12. Automatic Data Normalization and Parameterization for Optical Motion Tracking

    Directory of Open Access Journals (Sweden)

    Leif Kobbelt

    2006-09-01

    Full Text Available Methods for optical motion capture often require time-consuming manual processing before the data can be used for subsequent tasks such as retargeting or character animation. These processing steps restrict the applicability of motion capturing especially for dynamic VR-environments with real time requirements. To solve these problems, we present two additional, fast and automatic processing stages based on our motion capture pipeline presented in [ HSK05 ]. A normalization step aligns the recorded coordinate systems with the skeleton structure to yield a common and intuitive data basis across different recording sessions. A second step computes a parameterization based on automatically extracted main movement axes to generate a compact motion description. Our method does not restrict the placement of marker bodies nor the recording setup, and only requires a short calibration phase.

  13. Automatic particle detection and sorting in an electrokinetic microfluidic chip.

    Science.gov (United States)

    Song, Yongxin; Peng, Ran; Wang, Junsheng; Pan, Xinxiang; Sun, Yeqing; Li, Dongqing

    2013-03-01

    This paper reports a lab-on-a-chip device that can automatically detect and sort particles based on their size differences with a high resolution. The PDMS-glass microfluidic chip is made by soft-lithography technique. A differential resistive pulse sensor is employed to electrically detect the sizes of the particles in EOF generated by applying DC voltages across channels. The detected resistive pulse sensor signals, whose amplitudes are proportional to particles' sizes, will automatically trigger the sorting process that is controlled by applying a voltage pulse (36 V) whenever a target particle is detected. This method was applied to automatically detect and sort polystyrene particles and microalgae in aqueous solutions. Sorting 5 μm polymer particle from a mixture of 4- and 5-μm polystyrene particles in aqueous solution, i.e. 1 μm sorting resolution, was demonstrated. The device described in this paper is simple, automatic, and label-free with high sorting resolution. It has wide applications in sample pretreatment and target particles detection. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  14. Clothes Dryer Automatic Termination Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    TeGrotenhuis, Ward E.

    2014-10-01

    Volume 2: Improved Sensor and Control Designs Many residential clothes dryers on the market today provide automatic cycles that are intended to stop when the clothes are dry, as determined by the final remaining moisture content (RMC). However, testing of automatic termination cycles has shown that many dryers are susceptible to over-drying of loads, leading to excess energy consumption. In particular, tests performed using the DOE Test Procedure in Appendix D2 of 10 CFR 430 subpart B have shown that as much as 62% of the energy used in a cycle may be from over-drying. Volume 1 of this report shows an average of 20% excess energy from over-drying when running automatic cycles with various load compositions and dryer settings. Consequently, improving automatic termination sensors and algorithms has the potential for substantial energy savings in the U.S.

  15. Validity and reproducibility of arterial pulse wave velocity measurement using new device with oscillometric technique: A pilot study

    Directory of Open Access Journals (Sweden)

    Patnaik Amar

    2005-08-01

    Full Text Available Abstract Background Availability of a range of techniques and devices allow measurement of many variables related to the stiffness of large or medium sized arteries. There is good evidence that, pulse wave velocity is a relatively simple measurement and is a good indicator of changes in arterial properties. The pulse wave velocity calculated from pulse wave recording by other methods like doppler or tonometry is tedious, time-consuming and above all their reproducibility depends on the operator skills. It requires intensive resource involvement. For epidemiological studies these methods are not suitable. The aim of our study was to clinically evaluate the validity and reproducibility of a new automatic device for measurement of pulse wave velocity that can be used in such studies. Methods In 44 subjects including normal healthy control and patients with coronary artery disease, heart brachial, heart ankle, brachial ankle and carotid femoral pulse wave velocities were recorded by using a new oscillometric device. Lead I and II electrocardiogram and pressure curves were simultaneously recorded. Two observers recorded the pulse wave velocity for validation and one observer recorded the velocity on two occasions for reproducibility. Results and Discussion Pulse wave velocity and arterial stiffness index were recorded in 24 control and 20 coronary artery disease patients. All the velocities were significantly high in coronary artery disease patients. There was highly significant correlation between the values noted by the two observers with low standard deviation. The Pearson's correlation coefficient for various velocities ranged from (r = 0.88–0.90 with (p Conclusion The new device "PeriScope" based on oscillometric technique has been found to be a simple, non-invasive and reproducible device for the assessment of pulse wave velocity and can be used to determine arterial stiffness in large population based studies.

  16. Prospects for de-automatization.

    Science.gov (United States)

    Kihlstrom, John F

    2011-06-01

    Research by Raz and his associates has repeatedly found that suggestions for hypnotic agnosia, administered to highly hypnotizable subjects, reduce or even eliminate Stroop interference. The present paper sought unsuccessfully to extend these findings to negative priming in the Stroop task. Nevertheless, the reduction of Stroop interference has broad theoretical implications, both for our understanding of automaticity and for the prospect of de-automatizing cognition in meditation and other altered states of consciousness.

  17. Process automatization in system administration

    OpenAIRE

    Petauer, Janja

    2013-01-01

    The aim of the thesis is to present automatization of user management in company Studio Moderna. The company has grown exponentially in recent years, that is why we needed to find faster, easier and cheaper way of man- aging user accounts. We automatized processes of creating, changing and removing user accounts within Active Directory. We prepared user interface inside of existing application, used Java Script for drop down menus, wrote script in scripting programming langu...

  18. Automatic Sarcasm Detection: A Survey

    OpenAIRE

    Joshi, Aditya; Bhattacharyya, Pushpak; Carman, Mark James

    2016-01-01

    Automatic sarcasm detection is the task of predicting sarcasm in text. This is a crucial step to sentiment analysis, considering prevalence and challenges of sarcasm in sentiment-bearing text. Beginning with an approach that used speech-based features, sarcasm detection has witnessed great interest from the sentiment analysis community. This paper is the first known compilation of past work in automatic sarcasm detection. We observe three milestones in the research so far: semi-supervised pat...

  19. Automatic Coarse Graining of Polymers

    OpenAIRE

    Faller, Roland

    2003-01-01

    Several recently proposed semi--automatic and fully--automatic coarse--graining schemes for polymer simulations are discussed. All these techniques derive effective potentials for multi--atom units or super--atoms from atomistic simulations. These include techniques relying on single chain simulations in vacuum and self--consistent optimizations from the melt like the simplex method and the inverted Boltzmann method. The focus is on matching the polymer structure on different scales. Several ...

  20. The automatization of journalistic narrative

    Directory of Open Access Journals (Sweden)

    Naara Normande

    2013-06-01

    Full Text Available This paper proposes an initial discussion about the production of automatized journalistic narratives. Despite being a topic discussed in specialized sites and international conferences in communication area, the concepts are still deficient in academic research. For this article, we studied the concepts of narrative, databases and algorithms, indicating a theoretical trend that explains this automatized journalistic narratives. As characterization, we use the cases of Los Angeles Times, Narrative Science and Automated Insights.

  1. Automatic application of teat disinfectant through the milking machine cluster.

    Science.gov (United States)

    Grindal, R J; Priest, D J

    1989-08-01

    An automatic device, which infuses disinfectant into the mouthpiece of the liner of the milking machine cluster as teatcups are removed, is described. Application at this time avoids any delay in disinfection, reduces the workload in the parlour and increases reliability of application. The teats of 20 cows were contaminated before each milking by immersion in a suspension of Staphylococcus aureus and Streptococcus agalactiae and then disinfected manually or automatically with iodophor after milking. Str. agalactiae was recovered from less than 5% of swabs and there was no difference between the results from the two methods. Neither method of disinfection was as effective against Staph. aureus and the recovery rate was significantly greater for the automatic method for both swabs from teat barrel (P less than 0.05) and teat apex (P less than 0.001). Rates of intramammary infection for quarters automatically or manually disinfected were similar and low (3/40 v. 6/40 respectively). The automatic method facilitates cluster removal by relieving vacuum and decreasing frictional contact at the mouthpiece lip, and utilizes approximately half the quantity of disinfectant used by manual dipping (0.9 v. 1.9 ml/teat). However, iodine contamination in the milk from the iodophor teat disinfectant was significantly increased from 14.4 to 102.2 micrograms 12/100 ml milk when no backflushing was practised.

  2. 49 CFR 236.401 - Automatic block signal system and interlocking standards applicable to traffic control systems.

    Science.gov (United States)

    2010-10-01

    ... TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Traffic Control Systems Standards § 236.401 Automatic... 49 Transportation 4 2010-10-01 2010-10-01 false Automatic block signal system and interlocking standards applicable to traffic control systems. 236.401 Section 236.401 Transportation Other...

  3. [Design and Implementation of a Mobile Operating Room Information Management System Based on Electronic Medical Record].

    Science.gov (United States)

    Liu, Baozhen; Liu, Zhiguo; Wang, Xianwen

    2015-06-01

    A mobile operating room information management system with electronic medical record (EMR) is designed to improve work efficiency and to enhance the patient information sharing. In the operating room, this system acquires the information from various medical devices through the Client/Server (C/S) pattern, and automatically generates XML-based EMR. Outside the operating room, this system provides information access service by using the Browser/Server (B/S) pattern. Software test shows that this system can correctly collect medical information from equipment and clearly display the real-time waveform. By achieving surgery records with higher quality and sharing the information among mobile medical units, this system can effectively reduce doctors' workload and promote the information construction of the field hospital.

  4. NANOIMPRINT LITHOGRAPHY TECHNOLOGY WITH AUTOMATIC ALIGNMENT

    Institute of Scientific and Technical Information of China (English)

    FAN Xiqiu; ZHANG Honghai; WANG Xuefang; HU Xiaofeng; JIA Ke; LIU Sheng

    2007-01-01

    Nanoimprint lithography (NIL) is recognized as one of the most promising candidates for the next generation lithography (NGL) to obtain sub-100 nm patterns because of its simplicity,high-throughput and low-cost. While substantial effort has been expending on NIL for producing smaller and smaller feature sizes, considerably less effort has been devoted to the equally important issue-alignment between template and substrate. A homemade prototype nanoimprint lithography enable the substrate to move towards the desired position automatically. Linear motors with 300 mm travel range and 1 μm step resolution are used as macro actuators, and piezoelectric translators with 50 μm travel range and 1 nm step resolution are used as micro actuators. In addition, the prototype provides one translation (z displacement) and two tilting motion(α and β) to automatically bring uniform intact contact between the template and substrate surfaces by using a flexure stage. As a result, 10 μm coarse alignment accuracy and 20 nm fine alignment accuracy can be achieved. Finally,some results of nanostructures and micro devices such as nanoscale trenches and holes, gratings and microlens array fabricated using the prototype tool are presented, and hot embossing lithography, one typical NIL technology, are depicted by taking nanoscale gratings fabrication as an example.

  5. Automatic location of disruption times in JET.

    Science.gov (United States)

    Moreno, R; Vega, J; Murari, A

    2014-11-01

    The loss of stability and confinement in tokamak plasmas can induce critical events known as disruptions. Disruptions produce strong electromagnetic forces and thermal loads which can damage fundamental components of the devices. Determining the disruption time is extremely important for various disruption studies: theoretical models, physics-driven models, or disruption predictors. In JET, during the experimental campaigns with the JET-C (Carbon Fiber Composite) wall, a common criterion to determine the disruption time consisted of locating the time of the thermal quench. However, with the metallic ITER-like wall (JET-ILW), this criterion is usually not valid. Several thermal quenches may occur previous to the current quench but the temperature recovers. Therefore, a new criterion has to be defined. A possibility is to use the start of the current quench as disruption time. This work describes the implementation of an automatic data processing method to estimate the disruption time according to this new definition. This automatic determination allows both reducing human efforts to locate the disruption times and standardizing the estimates (with the benefit of being less vulnerable to human errors).

  6. Automatic dirt trail analysis in dermoscopy images.

    Science.gov (United States)

    Cheng, Beibei; Joe Stanley, R; Stoecker, William V; Osterwise, Christopher T P; Stricklin, Sherea M; Hinton, Kristen A; Moss, Randy H; Oliviero, Margaret; Rabinovitz, Harold S

    2013-02-01

    Basal cell carcinoma (BCC) is the most common cancer in the US. Dermatoscopes are devices used by physicians to facilitate the early detection of these cancers based on the identification of skin lesion structures often specific to BCCs. One new lesion structure, referred to as dirt trails, has the appearance of dark gray, brown or black dots and clods of varying sizes distributed in elongated clusters with indistinct borders, often appearing as curvilinear trails. In this research, we explore a dirt trail detection and analysis algorithm for extracting, measuring, and characterizing dirt trails based on size, distribution, and color in dermoscopic skin lesion images. These dirt trails are then used to automatically discriminate BCC from benign skin lesions. For an experimental data set of 35 BCC images with dirt trails and 79 benign lesion images, a neural network-based classifier achieved a 0.902 are under a receiver operating characteristic curve using a leave-one-out approach. Results obtained from this study show that automatic detection of dirt trails in dermoscopic images of BCC is feasible. This is important because of the large number of these skin cancers seen every year and the challenge of discovering these earlier with instrumentation. © 2011 John Wiley & Sons A/S.

  7. Phenological Records

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Phenology is the scientific study of periodic biological phenomena, such as flowering, breeding, and migration, in relation to climatic conditions. The few records...

  8. Portable EGG recording system based on a digital voice recorder.

    Science.gov (United States)

    Jang, J-K; Shieh, M-J; Kuo, T-S; Jaw, F-S

    2009-01-01

    Cutaneous electrogastrogram (EGG) recording offers the benefit of non-invasive gastrointestinal diagnosis. With long-term ambulatory recording of signals, researchers and clinicians could have more opportunities to investigate and analyse paroxysmal or acute symptoms. A portable EGG system based on a digital voice recorder (DVR) is designed for long-term recording of cutaneous EGG signals. The system consists of electrodes, an EGG amplifier, a modulator, and a DVR. Online monitoring and off-line acquisition of EGG are handled by software. A special design employing an integrated timer circuit is used to modulate the EGG frequency to meet the input requirements of the DVR. This approach involves low supply voltage and low power consumption. Software demodulation is used to simplify the complexity of the system, and is helpful in reducing the size of the portable device. By using surface-mount devices (SMD) and a low-power design, the system is robust, compact, and suitable for long-term portable recording. As a result, researchers can record an ambulatory EGG signal by means of the proposed circuits in conjunction with an up-to-date voice-recording device.

  9. A novel quantitative light‑induced fluorescence device for monitoring ...

    African Journals Online (AJOL)

    2015-08-06

    Aug 6, 2015 ... clinician to record the subject's identification, date of visit, and images of ... provided automatic quantitative analysis of lesions via its. [Downloaded .... logistics of dental health care, one of the deciding factors is its economic ...

  10. Integrated optical devices for photonics instrumentation systems

    Energy Technology Data Exchange (ETDEWEB)

    McWright, G.M.; Lafaw, D.A.; Lowry, M.; Tindall, W.

    1990-01-01

    We discuss the design, fabrication, and evaluation of high speed integrated optical devices for application to photonics instrumentation systems. Specifically, we have demonstrated integrated optical devices with bandwidths in excess of 25 GHz and implemented these devices in single-shot, streak camera based recording schemes. 5 refs., 6 figs.

  11. Ferroelectric devices

    CERN Document Server

    Uchino, Kenji

    2009-01-01

    Updating its bestselling predecessor, Ferroelectric Devices, Second Edition assesses the last decade of developments-and setbacks-in the commercialization of ferroelectricity. Field pioneer and esteemed author Uchino provides insight into why this relatively nascent and interdisciplinary process has failed so far without a systematic accumulation of fundamental knowledge regarding materials and device development.Filling the informational void, this collection of information reviews state-of-the-art research and development trends reflecting nano and optical technologies, environmental regulat

  12. [A validation of the data obtained with the simultaneous recording of blood pressure and the 24-hour electrocardiogram].

    Science.gov (United States)

    Germanò, G; Caparra, A; Valentino, S; Coia, F; Federico, L; Santucci, A

    1993-06-01

    Aim of this study was to evaluate the blood pressure (BP) measurement reliability of a light weight ambulatory BP and ECG recorder. Micro AM is a new 300 g portable apparatus that combines in one device both the ambulatory BP and solid state ECG recording. The dimensions of the Micro AM are 75 x 140 x 29 mm. The monitor measures BP using Korotkoff phase 1 for systolic and phase 5 for diastolic BP, and concurrently measures oscillometric BP, one method validating the other. In addition, the manual and programmed BP measurement modes can be supplemented by an "intelligent" mode in which the ECG triggers an ambulatory BP reading during an abnormal ST segment change. A standard mercury manometer was connected with the cuff of the Micro AM with a Y-shaped part, and 12 BP measurements were simultaneously taken at 5 min intervals by the automatic device in auscultatory mode and by a trained technician in 86 normotensive volunteers (aged from 18 to 44 years, 37 males and 49 females). The algebraic differences, the frequency distribution and the difference distribution of systolic and diastolic data between the 2 methods were calculated. The results show that the automatic method gives values for systolic BP that are lower than conventional ones (average differences -0.643 mmHg), whereas for diastolic BP, the values are higher (average differences +0.229 mmHg). Then, Student's paired t-test was used to evaluate statistically significant differences. The test relative to systolic BP was significant to the critical level of 0.1%, but the differences being 3 times smaller than the instrumental tolerance. On the contrary, diastolic BP differences were non significant. In conclusion, we found a good agreement between BP recorded automatically and by sphygmomanometer.

  13. Automatic Detection and Reproduction of Natural Head Position in Stereo-Photogrammetry.

    Directory of Open Access Journals (Sweden)

    Tai-Chiu Hsung

    Full Text Available The aim of this study was to develop an automatic orientation calibration and reproduction method for recording the natural head position (NHP in stereo-photogrammetry (SP. A board was used as the physical reference carrier for true verticals and NHP alignment mirror orientation. Orientation axes were detected and saved from the digital mesh model of the board. They were used for correcting the pitch, roll and yaw angles of the subsequent captures of patients' facial surfaces, which were obtained without any markings or sensors attached onto the patient. We tested the proposed method on two commercial active (3dMD and passive (DI3D SP devices. The reliability of the pitch, roll and yaw for the board placement were within ±0.039904°, ±0.081623°, and ±0.062320°; where standard deviations were 0.020234°, 0.045645° and 0.027211° respectively.Orientation-calibrated stereo-photogrammetry is the most accurate method (angulation deviation within ±0.1° reported for complete NHP recording with insignificant clinical error.

  14. New automatic minidisk infiltrometer: design and testing

    Directory of Open Access Journals (Sweden)

    Klípa Vladimír

    2015-06-01

    Full Text Available Soil hydraulic conductivity is a key parameter to predict water flow through the soil profile. We have developed an automatic minidisk infiltrometer (AMI to enable easy measurement of unsaturated hydraulic conductivity using the tension infiltrometer method in the field. AMI senses the cumulative infiltration by recording change in buoyancy force acting on a vertical solid bar fixed in the reservoir tube of the infiltrometer. Performance of the instrument was tested in the laboratory and in two contrasting catchments at three sites with different land use. Hydraulic conductivities determined using AMI were compared with earlier manually taken readings. The results of laboratory testing demonstrated high accuracy and robustness of the AMI measurement. Field testing of AMI proved the suitability of the instrument for use in the determination of sorptivity and near saturated hydraulic conductivity

  15. Ranking XPaths for extracting search result records

    NARCIS (Netherlands)

    Trieschnigg, Rudolf Berend; Tjin-Kam-Jet, Kien; Hiemstra, Djoerd

    2012-01-01

    Extracting search result records (SRRs) from webpages is useful for building an aggregated search engine which combines search results from a variety of search engines. Most automatic approaches to search result extraction are not portable: the complete process has to be rerun on a new search result

  16. Sociometry Based Multiparty Audio Recordings Segmentation

    OpenAIRE

    Vinciarelli, Alessandro

    2005-01-01

    This paper shows how Social Network Analysis, the sociological domain studying the interaction between people in specific social environments, can be used to assign roles to different speakers in multiparty recordings. The experiments presented in this work focus on radio news recordings involving around 11 speakers on average. Each of them is assigned automatically a role (e.g. anchorman or guest) without using any information related to their identity or the amount of time they talk. The re...

  17. Automatic Waterline Extraction from Smartphone Images

    Science.gov (United States)

    Kröhnert, M.

    2016-06-01

    Considering worldwide increasing and devastating flood events, the issue of flood defence and prediction becomes more and more important. Conventional methods for the observation of water levels, for instance gauging stations, provide reliable information. However, they are rather cost-expensive in purchase, installation and maintenance and hence mostly limited for monitoring large streams only. Thus, small rivers with noticeable increasing flood hazard risks are often neglected. State-of-the-art smartphones with powerful camera systems may act as affordable, mobile measuring instruments. Reliable and effective image processing methods may allow the use of smartphone-taken images for mobile shoreline detection and thus for water level monitoring. The paper focuses on automatic methods for the determination of waterlines by spatio-temporal texture measures. Besides the considerable challenge of dealing with a wide range of smartphone cameras providing different hardware components, resolution, image quality and programming interfaces, there are several limits in mobile device processing power. For test purposes, an urban river in Dresden, Saxony was observed. The results show the potential of deriving the waterline with subpixel accuracy by a column-by-column four-parameter logistic regression and polynomial spline modelling. After a transformation into object space via suitable landmarks (which is not addressed in this paper), this corresponds to an accuracy in the order of a few centimetres when processing mobile device images taken from small rivers at typical distances.

  18. Automatic burner adjustment in a singeing oven

    Energy Technology Data Exchange (ETDEWEB)

    Aabo, P.

    1984-07-01

    The expected energy savings of 10-15% of the actual fuel consumption in the singeing oven was reduced because of the change in the design of the singeing oven itself. The socalled optimized singeing oven hereafter includes: ceramic fibres, combustion air from the ceiling, fireproof oven bottom, automatic adjustment of air and fuel, rapid opening and closing, change over to pilot flame during stops and the slaughter line, and sealing between the oven's two parts and bottom. This optimization of the design of the singeing oven reduces the oil consumption from 0.8 litre to 0.45 litre fuel per pig carcass. The described optimization of the oven is partly carried out during this project. Thus the starting point for further reduction of the energy consumption is changed rather much. Neverthless a calculation of prospective profits proves that it is still profitable to invest in equipment for adjusting the burner in the singeing oven. It has been proved that the degree of singeing can be controlled by the parameters singeing period and oven temperature. A control device for controlling of the oil consumption on the basis of the temperature of the waste gas has succesfully been installed and it has been proved that the pay back period for this control device is approximately 2 years.

  19. Semi-automatic long-term acoustic surveying

    DEFF Research Database (Denmark)

    Andreassen, Tórur; Surlykke, Annemarie; Hallam, John

    2014-01-01

    data sampling rates (500kHz). Using a sound energy threshold criterion for triggering recording, we collected 236GB (Gi=10243) of data at full bandwidth. We implemented a simple automatic method using a Support Vector Machine (SVM) classifier based on a combination of temporal and spectral analyses...... to classify events into bat calls and non-bat events. After experimentation we selected duration, energy, bandwidth, and entropy as classification features to identify short high energy structured sounds in the right frequency range. The spectral entropy makes use of the orderly arrangement of frequencies...... in bat calls to reject short noise pulses, e.g. from rain. The SVM classifier reduced our dataset to 162MB of candidate bat calls with an estimated accuracy of 96% for dry nights and 70% when it was raining. The automatic survey revealed calls from two species of bat not previously recorded in the area...

  20. THEORETICAL CONSIDERATIONS REGARDING THE AUTOMATIC FISCAL STABILIZERS OPERATING MECHANISM

    Directory of Open Access Journals (Sweden)

    Gondor Mihaela

    2012-07-01

    Full Text Available This paper examines the role of Automatic Fiscal Stabilizers (AFS for stabilizing the cyclical fluctuations of macroeconomic output as an alternative to discretionary fiscal policy, admitting its huge potential of being an anti crisis solution. The objectives of the study are the identification of the general features of the concept of automatic fiscal stabilizers and the logical assessment of them from economic perspectives. Based on the literature in the field, this paper points out the disadvantages of fiscal discretionary policy and argue the need of using Automatic Fiscal Stabilizers in order to provide a faster decision making process, shielded from political interference, and reduced uncertainty for households and business environment. The paper conclude about the need of using fiscal policy for smoothing the economic cycle, but in a way which includes among its features transparency, responsibility and clear operating mechanisms. Based on the research results the present paper assumes that pro-cyclicality reduces de effectiveness of the Automatic Fiscal Stabilizer and as a result concludes that it is very important to avoid the pro-cyclicality in fiscal rule design. Moreover, by committing in advance to specific fiscal policy action contingent on economic developments, uncertainty about the fiscal policy framework during a recession should be reduced. Being based on logical analysis and not focused on empirical, contextualized one, the paper presents some features of AFS operating mechanism and also identifies and systematizes the factors which provide its importance and national individuality. Reaching common understanding on the Automatic Fiscal Stabilizer concept as a institutional device for smoothing the gap of the economic cycles across different countries, particularly for the European Union Member States, will facilitate efforts to coordinate fiscal policy responses during a crisis, especially in the context of the fiscal

  1. Algorithms for skiascopy measurement automatization

    Science.gov (United States)

    Fomins, Sergejs; Trukša, Renārs; KrūmiĆa, Gunta

    2014-10-01

    Automatic dynamic infrared retinoscope was developed, which allows to run procedure at a much higher rate. Our system uses a USB image sensor with up to 180 Hz refresh rate equipped with a long focus objective and 850 nm infrared light emitting diode as light source. Two servo motors driven by microprocessor control the rotation of semitransparent mirror and motion of retinoscope chassis. Image of eye pupil reflex is captured via software and analyzed along the horizontal plane. Algorithm for automatic accommodative state analysis is developed based on the intensity changes of the fundus reflex.

  2. Annual review in automatic programming

    CERN Document Server

    Goodman, Richard

    2014-01-01

    Annual Review in Automatic Programming focuses on the techniques of automatic programming used with digital computers. Topics covered range from the design of machine-independent programming languages to the use of recursive procedures in ALGOL 60. A multi-pass translation scheme for ALGOL 60 is described, along with some commercial source languages. The structure and use of the syntax-directed compiler is also considered.Comprised of 12 chapters, this volume begins with a discussion on the basic ideas involved in the description of a computing process as a program for a computer, expressed in

  3. Automatic mapping of monitoring data

    DEFF Research Database (Denmark)

    Lophaven, Søren; Nielsen, Hans Bruun; Søndergaard, Jacob

    2005-01-01

    This paper presents an approach, based on universal kriging, for automatic mapping of monitoring data. The performance of the mapping approach is tested on two data-sets containing daily mean gamma dose rates in Germany reported by means of the national automatic monitoring network (IMIS......). In the second dataset an accidental release of radioactivity in the environment was simulated in the South-Western corner of the monitored area. The approach has a tendency to smooth the actual data values, and therefore it underestimates extreme values, as seen in the second dataset. However, it is capable...

  4. Automatic Construction of Finite Algebras

    Institute of Scientific and Technical Information of China (English)

    张健

    1995-01-01

    This paper deals with model generation for equational theories,i.e.,automatically generating (finite)models of a given set of (logical) equations.Our method of finite model generation and a tool for automatic construction of finite algebras is described.Some examples are given to show the applications of our program.We argue that,the combination of model generators and theorem provers enables us to get a better understanding of logical theories.A brief comparison betwween our tool and other similar tools is also presented.

  5. Student Records

    Science.gov (United States)

    Fields, Cheryl

    2005-01-01

    Another topic involving privacy has attracted considerable attention in recent months--the "student unit record" issue. The U.S. Department of Education concluded in March that it would be feasible to help address lawmakers' concerns about accountability in higher education by constructing a database capable of tracking students from institution…

  6. Record dynamics

    DEFF Research Database (Denmark)

    Robe, Dominic M.; Boettcher, Stefan; Sibani, Paolo

    2016-01-01

    -facto irreversible and become increasingly harder to achieve. Thus, a progression of record-sized dynamical barriers are traversed in the approach to equilibration. Accordingly, the statistics of the events is closely described by a log-Poisson process. Originally developed for relaxation in spin glasses...

  7. An Efficient Automatic Attendance System using Fingerprint Verification Technique

    OpenAIRE

    Chitresh Saraswat,; Amit Kumar

    2010-01-01

    The main aim of this paper is to develop an accurate, fast and very efficient automatic attendance system using fingerprint verification technique. We propose a system in which fingerprint verification is done by using extraction of minutiae technique and the system that automates the whole process of taking attendance, Manually which is a laborious and troublesome work and waste a lot of time, with its managing and maintaining the records for a period of time is also a burdensome task. For t...

  8. Recent recordings

    CERN Multimedia

    Steve Goldfarb

    The University of Michigan ATLAS Collaboratory Project would like to announce the publication of a number of recent web lectures concerning ATLAS and the LHC. Most recently, we produced a series of presentations made at the First ATLAS Physics Workshop of the Americas, held at SLAC in August. The complete set of lectures can be found here.There is a lot of outstanding material there, relevant to all of ATLAS, including detector summaries, trigger and physics talks, software and computing presentations, and an overview of operations. Viewing requires a standard web browser with RealPlayer plug-in (included in most browsers automatically) and works on any major platform. Lectures can be viewed directly over the web or downloaded locally.Additional ATLAS material, including plenary lectures, workshops and tutorials, can be found via our portal athttp://www.wlap.org/atlasincluding: First ATLAS Physics Workshop of the Americas (Aug 2007) Glasgow Overview Week Plenary Sessions (Jul 2007) CTEQ Workshop: "Physics at ...

  9. Automatic classification of seismo-volcanic signatures

    Science.gov (United States)

    Malfante, Marielle; Dalla Mura, Mauro; Mars, Jérôme; Macedo, Orlando; Inza, Adolfo; Métaxian, Jean-Philippe

    2017-04-01

    The prediction of volcanic eruptions and the evaluation of their associated risks is still a timely and open issue. For this purpose, several types of signals are recorded in the proximity of volcanoes and then analysed by experts. Typically, seismic signals that are considered as precursor or indicator of an active volcanic phase are detected and manually classified. In this work, we propose an architecture for automatic classification of seismo-volcanic waves. The system we propose is based on supervised machine learning. Specifically, a prediction model is built from a large dataset of labelled examples by the means of a learning algorithm (Support Vector Machine or Random Forest). Four main steps are involved: (i) preprocess the signals, (ii) from each signal, extract features that are useful for the classes discrimination, (iii) use an automatic learning algorithm to train a prediction model and (iv) classify (i.e., assign a semantic label) newly recorded and unlabelled examples. Our main contribution lies in the definition of the feature space used to represent the signals (i.e., in the choice of the features to extract from the data). Feature vectors describe the data in a space of lower dimension with respect to the original one. Ideally, signals are separable in the feature space depending on their classes. For this work, we consider a large set of features (79) gathered from an extensive state of the art in both acoustic and seismic fields. An analysis of this feature set shows that for the application of interest, 11 features are sufficient to discriminate the data. The architecture is tested on 4725 seismic events recorded between June 2006 and September 2011 at Ubinas, the most active volcano of Peru. Six main classes of signals are considered: volcanic tremors (TR), long period (LP), volcano-tectonic (VT), explosion (EXP), hybrids (HIB) and tornillo (TOR). Our model reaches above 90% of accuracy, thereby validating the proposed architecture and the

  10. Ventricular assist device

    Science.gov (United States)

    VAD; RVAD; LVAD; BVAD; Right ventricular assist device; Left ventricular assist device; Biventricular assist device; Heart pump; Left ventricular assist system; LVAS; Implantable ventricular assist device

  11. Differentiating between light and deep sleep stages using an ambulatory device based on peripheral arterial tonometry.

    Science.gov (United States)

    Bresler, Ma'ayan; Sheffy, Koby; Pillar, Giora; Preiszler, Meir; Herscovici, Sarah

    2008-05-01

    The objective of this study is to develop and assess an automatic algorithm based on the peripheral arterial tone (PAT) signal to differentiate between light and deep sleep stages. The PAT signal is a measure of the pulsatile arterial volume changes at the finger tip reflecting sympathetic tone variations and is recorded by an ambulatory unattended device, the Watch-PAT100, which has been shown to be capable of detecting wake, NREM and REM sleep. An algorithm to differentiate light from deep sleep was developed using a training set of 49 patients and was validated using a separate set of 44 patients. In both patient sets, Watch-PAT100 data were recorded simultaneously with polysomnography during a full night sleep study. The algorithm is based on 14 features extracted from two time series of PAT amplitudes and inter-pulse periods (IPP). Those features were then further processed to yield a prediction function that determines the likelihood of detecting a deep sleep stage epoch during NREM sleep periods. Overall sensitivity, specificity and agreement of the automatic algorithm to identify standard 30 s epochs of light and deep sleep stages were 66%, 89%, 82% and 65%, 87%, 80% for the training and validation sets, respectively. Together with the already existing algorithms for REM and wake detection we propose a close to full stage detection method based solely on the PAT and actigraphy signals. The automatic sleep stages detection algorithm could be very useful for unattended ambulatory sleep monitoring assessing sleep stages when EEG recordings are not available.

  12. Automatic Validation of Protocol Narration

    DEFF Research Database (Denmark)

    Bodei, Chiara; Buchholtz, Mikael; Degano, Pierpablo;

    2003-01-01

    We perform a systematic expansion of protocol narrations into terms of a process algebra in order to make precise some of the detailed checks that need to be made in a protocol. We then apply static analysis technology to develop an automatic validation procedure for protocols. Finally, we...

  13. How CBO Estimates Automatic Stabilizers

    Science.gov (United States)

    2015-11-01

    Medicare Payroll Taxes ........................................................................................ 10 Taxes on Production and Imports ...the economy. Most types of revenues—mainly personal, corporate, and social insurance taxes—are sensitive to the business cycle and account for most of...States: Automatic Stabilizers, Discretionary Fiscal Policy Actions, and the Economy, Finance and Economic Discussion Series Paper 2010-43 (Board of

  14. Automatic Identification of Metaphoric Utterances

    Science.gov (United States)

    Dunn, Jonathan Edwin

    2013-01-01

    This dissertation analyzes the problem of metaphor identification in linguistic and computational semantics, considering both manual and automatic approaches. It describes a manual approach to metaphor identification, the Metaphoricity Measurement Procedure (MMP), and compares this approach with other manual approaches. The dissertation then…

  15. Automatic Error Analysis Using Intervals

    Science.gov (United States)

    Rothwell, E. J.; Cloud, M. J.

    2012-01-01

    A technique for automatic error analysis using interval mathematics is introduced. A comparison to standard error propagation methods shows that in cases involving complicated formulas, the interval approach gives comparable error estimates with much less effort. Several examples are considered, and numerical errors are computed using the INTLAB…

  16. Trevi Park: Automatic Parking System

    OpenAIRE

    ECT Team, Purdue

    2007-01-01

    TreviPark is an underground, multi-story stacking system that holds cars efficiently, thus reducing the cost of each parking space, as a fully automatic parking system intended to maximize space utilization in parking structures. TreviPark costs less than the price of a conventional urban garage and takes up half the volume and 80% of the depth.

  17. An Automatic Program Synthesis Bibliography.

    Science.gov (United States)

    1988-01-19

    experimentation of the BIS system. Interna- tional Journal of Man-Machine Studies, 17:173-188, 1982. [67] A F Cardenas . Technology for automatic...Philadelphia, PA, May 1978. [110] B L Gates and J A van Hulzen. Proceedings of European Conference on Computer Algebra (EUROCAL 85), pages 583-584. Volume 203

  18. Automatic milking : a better understanding

    NARCIS (Netherlands)

    Meijering, A.; Hogeveen, H.; Koning, de C.J.A.M.

    2004-01-01

    In 2000 the book Robotic Milking, reflecting the proceedings of an International Symposium which was held in The Netherlands came out. At that time, commercial introduction of automatic milking systems was no longer obstructed by technological inadequacies. Particularly in a few west-European countr

  19. Mppsocgen: A framework for automatic generation of mppsoc architecture

    CERN Document Server

    Kallel, Emna; Baklouti, Mouna; Abid, Mohamed

    2012-01-01

    Automatic code generation is a standard method in software engineering since it improves the code consistency and reduces the overall development time. In this context, this paper presents a design flow for automatic VHDL code generation of mppSoC (massively parallel processing System-on-Chip) configuration. Indeed, depending on the application requirements, a framework of Netbeans Platform Software Tool named MppSoCGEN was developed in order to accelerate the design process of complex mppSoC. Starting from an architecture parameters design, VHDL code will be automatically generated using parsing method. Configuration rules are proposed to have a correct and valid VHDL syntax configuration. Finally, an automatic generation of Processor Elements and network topologies models of mppSoC architecture will be done for Stratix II device family. Our framework improves its flexibility on Netbeans 5.5 version and centrino duo Core 2GHz with 22 Kbytes and 3 seconds average runtime. Experimental results for reduction al...

  20. Design of automatic leveling and centering system of theodolite

    Science.gov (United States)

    Liu, Chun-tong; He, Zhen-Xin; Huang, Xian-xiang; Zhan, Ying

    2012-09-01

    To realize the theodolite automation and improve the azimuth Angle measurement instrument, the theodolite automatic leveling and centering system with the function of leveling error compensation is designed, which includes the system solution, key components selection, the mechanical structure of leveling and centering, and system software solution. The redesigned leveling feet are driven by the DC servo motor; and the electronic control center device is installed. Using high precision of tilt sensors as horizontal skew detection sensors ensures the effectiveness of the leveling error compensation. Aiming round mark center is located using digital image processing through surface array CCD; and leveling measurement precision can reach the pixel level, which makes the theodolite accurate centering possible. Finally, experiments are conducted using the automatic leveling and centering system of the theodolite. The results show the leveling and centering system can realize automatic operation with high centering accuracy of 0.04mm.The measurement precision of the orientation angle after leveling error compensation is improved, compared with that of in the traditional method. Automatic leveling and centering system of theodolite can satisfy the requirements of the measuring precision and its automation.

  1. Separating device

    NARCIS (Netherlands)

    De Jong, T.P.R.

    2001-01-01

    A sorting device (1) suitable for sorting wire from a waste stream, comprising a body (2) that moves when in use, and provided with spikes or similar projections. The body is embodied as a rotatable roll (2), which oscillates axially during its rotation. The roll is coupled to an oscillation engine

  2. Detection device

    Science.gov (United States)

    Smith, J.E.

    1981-02-27

    The present invention is directed to a detection device comprising: (1) an entrance chamber; (2) a central chamber; and (3) an exit chamber. The central chamber includes an ionizing gas, anode, and means for connecting the anode with an external power supply and pulse counter.

  3. Assistive Devices

    Science.gov (United States)

    ... a number of assistive devices. These are tools, products or types of equipment that help you perform tasks and activities. They may help you move around, see, communicate, eat, or get dressed. Some are high-tech tools, such as computers. Others are much simpler, ...

  4. Printing Device

    NARCIS (Netherlands)

    Berg, van den M.J.; Markies, P.R.; Zuilhof, H.

    2014-01-01

    An ink jetprinting device includes a pressure chamber formed by a plurality of wall segments, a first aperture extending through a wall segment and communicating with an ink jet orifice and a second aperture extending through a wall segment and communicating with an ink supply duct. The pressure

  5. Electrochemical device

    Science.gov (United States)

    Grimes, Patrick G.; Einstein, Harry; Bellows, Richard J.

    1988-01-12

    A tunnel protected electrochemical device features channels fluidically communicating between manifold, tunnels and cells. The channels are designed to provide the most efficient use of auxiliary power. The channels have a greater hydraulic pressure drop and electrical resistance than the manifold. This will provide a design with the optimum auxiliary energy requirements.

  6. Printing Device

    NARCIS (Netherlands)

    Berg, van den M.J.; Markies, P.R.; Zuilhof, H.

    2014-01-01

    An ink jetprinting device includes a pressure chamber formed by a plurality of wall segments, a first aperture extending through a wall segment and communicating with an ink jet orifice and a second aperture extending through a wall segment and communicating with an ink supply duct. The pressure cha

  7. Balancing device

    NARCIS (Netherlands)

    Van Dorsser, W.D.; Herder, J.L.; Wisse B.M.; Barents, R.

    2007-01-01

    The invention relates to a balancing device for a mass, comprising an arm that is adjustable about a pivoting point and with which the mass is coupled, and an adjustable spring system that is coupled with the arm, which spring system comprises at least one spring, wherein the spring system comprises

  8. Feedback controlled piezo-motor microdrive for accurate electrode positioning in chronic single unit recording in behaving mice.

    Science.gov (United States)

    Yang, Sungwook; Cho, Jeiwon; Lee, Semin; Park, Kitae; Kim, Jinseok; Huh, Yeowool; Yoon, Eui-Sung; Shin, Hee-Sup

    2011-02-15

    The microdrive is one of the most essential tools for extracellular, single-unit recordings in freely behaving animals to detect and isolate the single-unit activities from brain regions of interest. Due to the increasing number of neuroscience research projects using genetically engineered mice, the demand for effective recording devices in freely moving mice is also increasing. Although manually and automatically operated microdrive devices are available, they are limited in terms of size, weight, accuracy, manipulability, and convenience for single-unit recording in mice. The present study proposed a novel microdrive that employs a small, lightweight piezo-motor and a magnetoresistive (MR) sensor with a closed-loop position feedback control system. The total weight of the device is 1.82 g, which is perfectly suitable for application to mice. Most importantly, the proposed microdrive is capable of monitoring and adjusting electrode movement on-line by integrating a closed-loop feedback control system, which enhances the accuracy of micro-advancement of the electrode by utilizing position feedback. The performance of this newly developed microdrive was extensively evaluated for both mechanical and physiological concerns at both free-loading and various-loading conditions, including agarose gel matrix and then the hippocampus and thalamus of mice. In summary, this proposed microdrive can enhance the quality of recording single unit activities in freely moving mice in terms of the size and weight of the device, the convenience and accuracy of manipulation, and, most of all, in isolating single neurons and recording stability by providing accurate positioning of an electrode.

  9. Segmentation and accuracy-based scores for the automatic assessment of oral proficiency for proficient L2 speakers

    CSIR Research Space (South Africa)

    De Wet, Febe

    2010-11-01

    Full Text Available This paper reports on the automatic assessment of oral proficiency for advanced second language speakers. A spoken dialogue system is used to guide students through an oral test and to record their answers. Indicators of oral proficiency...

  10. Giant magneto-resistance devices

    CERN Document Server

    Hirota, Eiichi; Inomata, Koichiro

    2002-01-01

    This book deals with the application of giant magneto-resistance (GMR) effects to electronic devices. It will appeal to engineers and graduate students in the fields of electronic devices and materials. The main subjects are magnetic sensors with high resolution and magnetic read heads with high sensitivity, required for hard-disk drives with recording densities of several gigabytes. Another important subject is novel magnetic random-access memories (MRAM) with non-volatile non-destructive and radiation-resistant characteristics. Other topics include future GMR devices based on bipolar spin transistors, spin field-effect transistors (FETs) and double-tunnel junctions.

  11. An empirical analysis of the methodology of automatic imitation research in a strategic context.

    Science.gov (United States)

    Aczel, Balazs; Kekecs, Zoltan; Bago, Bence; Szollosi, Aba; Foldes, Andrei

    2015-08-01

    Since the discovery of the mirror neuron system, it has been proposed that the automatic tendency to copy observed actions exists in humans and that this mechanism might be responsible for a range of social behavior. A strong argument for automatic behavior can be made when actions are executed against motivation to do otherwise. Strategic games in which imitation is disadvantageous serve as ideal designs for studying the automatic nature of participants' behavior. Most recently, Belot, Crawford, and Heyes (2013) conducted an explorative study using a modified version of the Rock-Paper-Scissors game, and suggested that in the case of asynchrony in the execution of the gestures, automatic imitation can be observed early on after the opponent's presentation. In our study, we video recorded the games, which allowed us to examine the effect of delay on imitative behavior as well as the sensitivity of the previously employed analyses. The examination of the recorded images revealed that more than 80% of the data were irrelevant to the study of automatic behavior. Additional bias in the paradigm became apparent, as previously presented gestures were found to affect the behavior of the players. After noise filtering, we found no evidence of automatic imitation in either the whole filtered data set or in selected time windows based on delay length. Besides questioning the strength of the results of previous analyses, we propose several experimental and statistical modifications for further research on automatic imitation. (c) 2015 APA, all rights reserved).

  12. Stery-hand: A new device to support hand disinfection.

    Science.gov (United States)

    Szilagyi, Laszlo; Lehotsky, Akos; Nagy, Melinda; Haidegger, Tamas; Benyo, Balazs; Benyo, Zoltan

    2010-01-01

    Incomplete disinfection can cause serious complications in surgical care. The teaching of effective hand washing is crucial in modern medical training. To support the objective evaluation of hand disinfection, we developed a compact, mobile device, relying on digital imaging and image processing. The hardware consists of a metal case with matte black interior, ultra-violet lighting and a digital camera. Image segmentation and clustering are performed on a regular notebook. The hand washing procedures performed with a soap mixed with UV-reflective powder. This results the skin showing bright under UV light only on the treated (sterile) surfaces. When the surgeon inserts its hands into the box, the camera placed on the top takes an image of the hand for evaluation. The software performs the segmentation and clustering automatically. First, the hand contour is determined from the green intensity channel of the recorded RGB image. Then, the pixels of the green channel belonging to the hand are partitioned to three clusters using a quick, histogram based fuzzy c-means algorithm. The optimal threshold between the intensities of clean and dirty areas is extracted using these clusters, while the final approximated percentage of the clean area is computed using a weighting formula. The main advantage of our device is the ability to obtain objective and comparable result on the quality of hand disinfection. It may find its best use in the clinical education and training.

  13. Study on full automatic arc welding machine for spherical tank

    Institute of Scientific and Technical Information of China (English)

    蒋力培; 张甲英; 俞建荣

    2002-01-01

    A full automatic welding machine for spherical tanks' all position multi-layer welds has been developed. This machine is mainly composed of a two-dimension seam tracking system based on microcomputer's memory and a welding tractor as well as rail. The main features of the machine are: while welding the first layer of a seam, its microcomputer system can analyze and store the tracing information from a two-dimension sensor, and control the welding head device to realize two-dimension real time tracing; while welding the second layer up to the top layer of the seam, it can realize two-dimension tracing based on the memorial data, automatically determine the layer number and continually sway the welding head. The welding test shows that the machine has good tracing and welding behavior, and is suitable for spherical tank's all position multi-layer welds.

  14. Smart optical distance sensor for automatic welding detection

    Science.gov (United States)

    Kahl, Michael; Rinner, Stefan; Ettemeyer, Andreas

    2015-05-01

    In this paper, we describe a simple and cost-effective method and measuring device for automatic detection of welding. The sensor is to be used in automatic darkening filters (ADF) of welding helmets protecting the operator from intensive hazardous UV radiation. For reasons discussed in detail below, conventional sensor principles used in ADF are being out-dated. Here, we critically revise some alternatives and propose an approach comprising an optical distance sensor. Its underlying principle is triangulation with two pin-hole cameras. The absence of optical components such as lenses results in very low cost. At first, feasibility is tested with optical simulations. Additionally, we present measurement results that prove the practicability of our proposal.

  15. An Automatic Proof of Euler's Formula

    Directory of Open Access Journals (Sweden)

    Jun Zhang

    2005-05-01

    Full Text Available In this information age, everything is digitalized. The encoding of functions and the automatic proof of functions are important. This paper will discuss the automatic calculation for Taylor expansion coefficients, as an example, it can be applied to prove Euler's formula automatically.

  16. Self-Compassion and Automatic Thoughts

    Science.gov (United States)

    Akin, Ahmet

    2012-01-01

    The aim of this research is to examine the relationships between self-compassion and automatic thoughts. Participants were 299 university students. In this study, the Self-compassion Scale and the Automatic Thoughts Questionnaire were used. The relationships between self-compassion and automatic thoughts were examined using correlation analysis…

  17. 8 CFR 1205.1 - Automatic revocation.

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Automatic revocation. 1205.1 Section 1205.1... REGULATIONS REVOCATION OF APPROVAL OF PETITIONS § 1205.1 Automatic revocation. (a) Reasons for automatic revocation. The approval of a petition or self-petition made under section 204 of the Act and in...

  18. 8 CFR 205.1 - Automatic revocation.

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Automatic revocation. 205.1 Section 205.1 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS REVOCATION OF APPROVAL OF PETITIONS § 205.1 Automatic revocation. (a) Reasons for automatic revocation. The approval of a petition...

  19. "Distinvar" device

    CERN Multimedia

    CERN PhotoLab

    1965-01-01

    The alignment of one of the accelerator magnets being checked by the AR Division survey group. A "distinvar" device, invented by the group, using calibrated invar wires stretched between the fixed survey pillar (on the left) and a fixed point on the magnet. In two days it is thus possible to measure the alignment of the 100 magnets with an accuracy better than 1/10.

  20. Magnetohydrodynamic device

    Energy Technology Data Exchange (ETDEWEB)

    Gorlin, S.M.; Ljubimov, G.A.; Bitjurin, V.A.; Kovbasjuk, V.I.; Maximenko, V.I.; Medin, S.A.; Barshak, A.E.

    1979-12-25

    A magnetohydrodynamic device having a duct for a conducting gas to flow at an angle with the direction of the magnetic field induction vector is described. The duct is situated in the magnetic system and is provided with a plurality of electrodes adapted to interact electrically with the gas, whereas the cross-sectional shape of the duct working space is bounded by a closed contour formed by a curve inscribed into a rectangle. 1 claim.

  1. Record club

    CERN Multimedia

    Record club

    2010-01-01

      Bonjour a tous, Voici les 24 nouveaux DVD de Juillet disponibles depuis quelques jours, sans oublier les 5 CD Pop musique. Découvrez la saga du terroriste Carlos, la vie de Gainsbourg et les aventures de Lucky Luke; angoissez avec Paranormal Activity et évadez vous sur Pandora dans la peau d’Avatar. Toutes les nouveautés sont à découvrir directement au club. Pour en connaître la liste complète ainsi que le reste de la collection du Record Club, nous vous invitons sur notre site web: http://cern.ch/crc. Toutes les dernières nouveautés sont dans la rubrique « Discs of the Month ». Rappel : le club est ouvert les Lundis, Mercredis, Vendredis de 12h30 à 13h00 au restaurant n°2, bâtiment 504. A bientôt chers Record Clubbers.  

  2. Record Club

    CERN Multimedia

    Record Club

    2011-01-01

    http://cern.ch/Record.Club November  Selections Just in time for the holiday season, we have added a number of new CDs and DVDs into the Club. You will find the full lists at http://cern.ch/record.club; select the "Discs of the Month" button on the left side on the left panel of the web page and then Nov 2011. New films include the all 5 episodes of Fast and Furious, many of the most famous films starring Jean-Paul Belmondo and those of Louis de Funes and some more recent films such as The Lincoln Lawyer and, according to some critics, Woody Allen’s best film for years – Midnight in Paris. For the younger generation there is Cars 2 and Kung Fu Panda 2. New CDs include the latest releases by Adele, Coldplay and the Red Hot Chili Peppers. We have also added the new Duets II CD featuring Tony Bennett singing with some of today’s pop stars including Lady Gaga, Amy Winehouse and Willy Nelson. The Club is now open every Monday, Wednesday and Friday ...

  3. Record Club

    CERN Multimedia

    Record Club

    2011-01-01

    http://cern.ch/Record.Club Nouveautés été 2011 Le club de location de CDs et de DVDs vient d’ajouter un grand nombre de disques pour l’été 2011. Parmi eux, Le Discours d’un Roi, oscar 2011 du meilleur film et Harry Potter les reliques de la mort (1re partie). Ce n’est pas moins de 48 DVDs et 10 CDs nouveaux qui vous sont proposés à la location. Il y en a pour tous les genres. Alors n’hésitez pas à consulter notre site http://cern.ch/record.club, voir Disc Catalogue, Discs of the month pour avoir la liste complète. Le club est ouvert tous les Lundi, Mercredi, Vendredi de 12h30 à 13h dans le bâtiment du restaurent N°2 (Cf. URL: http://www.cern.ch/map/building?bno=504) A très bientôt.  

  4. Record Club

    CERN Multimedia

    Record Club

    2011-01-01

    http://cern.ch/Record.Club June Selections We have put a significant number of new CDs and DVDs into the Club You will find the full lists at http://cern.ch/record.club and select the «Discs of the Month» button on the left side on the left panel of the web page and then June 2011. New films include the latest Action, Suspense and Science Fiction film hits, general drama movies including the Oscar-winning The King’s Speech, comedies including both chapter of Bridget Jones’s Diary, seven films for children and a musical. Other highlights include the latest Harry Potter release and some movies from the past you may have missed including the first in the Terminator series. New CDs include the latest releases by Michel Sardou, Mylene Farmer, Jennifer Lopez, Zucchero and Britney Spears. There is also a hits collection from NRJ. Don’t forget that the Club is now open every Monday, Wednesday and Friday lunchtimes from 12h30 to 13h00 in Restaurant 2, Building 504. (C...

  5. Text mining electronic health records to identify hospital adverse events

    DEFF Research Database (Denmark)

    Gerdes, Lars Ulrik; Hardahl, Christian

    2013-01-01

    Manual reviews of health records to identify possible adverse events are time consuming. We are developing a method based on natural language processing to quickly search electronic health records for common triggers and adverse events. Our results agree fairly well with those obtained using manual...... reviews, and we therefore believe that it is possible to develop automatic tools for monitoring aspects of patient safety....

  6. [A 24-hour solid state Holter recording and analyzing system].

    Science.gov (United States)

    Jia, C; Duan, H; Yan, X; Lu, W

    1998-01-01

    The design and functions of a new type of multi-channel solid-state Holter system were introduced in this paper. The flash memory card based recorder can record 24 hours or more of data from up to all 12 leads. The full function scanner software can analysis automatically and archive with complete editing capabilities.

  7. Using Automated Learning Devices for Monkeys (ALDM) to study social networks.

    Science.gov (United States)

    Claidière, Nicolas; Gullstrand, Julie; Latouche, Aurélien; Fagot, Joël

    2017-02-01

    Social network analysis has become a prominent tool to study animal social life, and there is an increasing need to develop new systems to collect social information automatically, systematically, and reliably. Here we explore the use of a freely accessible Automated Learning Device for Monkeys (ALDM) to collect such social information on a group of 22 captive baboons (Papio papio). We compared the social network obtained from the co-presence of the baboons in ten ALDM testing booths to the social network obtained through standard behavioral observation techniques. The results show that the co-presence network accurately reflects the social organization of the group, and also indicate under which conditions the co-presence network is most informative. In particular, the best correlation between the two networks was obtained with a minimum of 40 days of computer records and for individuals with at least 500 records per day. We also show through random permutation tests that the observed correlations go beyond what would be observed by simple synchronous activity, to reflect a preferential choice of closely located testing booths. The use of automatized cognitive testing therefore presents a new way of obtaining a large and regular amount of social information that is necessary to develop social network analysis. It also opens the possibility of studying dynamic changes in network structure with time and in relation to the cognitive performance of individuals.

  8. Medical devices; radiology devices; reclassification of full-field digital mammography system. Final rule.

    Science.gov (United States)

    2010-11-05

    The Food and Drug Administration (FDA) is announcing the reclassification of the full-field digital mammography (FFDM) system from class III (premarket approval) to class II (special controls). The device type is intended to produce planar digital x-ray images of the entire breast; this generic type of device may include digital mammography acquisition software, full-field digital image receptor, acquisition workstation, automatic exposure control, image processing and reconstruction programs, patient and equipment supports, component parts, and accessories. The special control that will apply to the device is the guidance document entitled "Class II Special Controls Guidance Document: Full-Field Digital Mammography System." FDA is reclassifying the device into class II (special controls) because general controls along with special controls will provide a reasonable assurance of safety and effectiveness of the device. Elsewhere in this issue of the Federal Register, FDA is announcing the availability of the guidance document that will serve as the special control for this device.

  9. Physics of Automatic Target Recognition

    CERN Document Server

    Sadjadi, Firooz

    2007-01-01

    Physics of Automatic Target Recognition addresses the fundamental physical bases of sensing, and information extraction in the state-of-the art automatic target recognition field. It explores both passive and active multispectral sensing, polarimetric diversity, complex signature exploitation, sensor and processing adaptation, transformation of electromagnetic and acoustic waves in their interactions with targets, background clutter, transmission media, and sensing elements. The general inverse scattering, and advanced signal processing techniques and scientific evaluation methodologies being used in this multi disciplinary field will be part of this exposition. The issues of modeling of target signatures in various spectral modalities, LADAR, IR, SAR, high resolution radar, acoustic, seismic, visible, hyperspectral, in diverse geometric aspects will be addressed. The methods for signal processing and classification will cover concepts such as sensor adaptive and artificial neural networks, time reversal filt...

  10. Automatic design of magazine covers

    Science.gov (United States)

    Jahanian, Ali; Liu, Jerry; Tretter, Daniel R.; Lin, Qian; Damera-Venkata, Niranjan; O'Brien-Strain, Eamonn; Lee, Seungyon; Fan, Jian; Allebach, Jan P.

    2012-03-01

    In this paper, we propose a system for automatic design of magazine covers that quantifies a number of concepts from art and aesthetics. Our solution to automatic design of this type of media has been shaped by input from professional designers, magazine art directors and editorial boards, and journalists. Consequently, a number of principles in design and rules in designing magazine covers are delineated. Several techniques are derived and employed in order to quantify and implement these principles and rules in the format of a software framework. At this stage, our framework divides the task of design into three main modules: layout of magazine cover elements, choice of color for masthead and cover lines, and typography of cover lines. Feedback from professional designers on our designs suggests that our results are congruent with their intuition.

  11. The Automatic Galaxy Collision Software

    CERN Document Server

    Smith, Beverly J; Pfeiffer, Phillip; Perkins, Sam; Barkanic, Jason; Fritts, Steve; Southerland, Derek; Manchikalapudi, Dinikar; Baker, Matt; Luckey, John; Franklin, Coral; Moffett, Amanda; Struck, Curtis

    2009-01-01

    The key to understanding the physical processes that occur during galaxy interactions is dynamical modeling, and especially the detailed matching of numerical models to specific systems. To make modeling interacting galaxies more efficient, we have constructed the `Automatic Galaxy Collision' (AGC) code, which requires less human intervention in finding good matches to data. We present some preliminary results from this code for the well-studied system Arp 284 (NGC 7714/5), and address questions of uniqueness of solutions.

  12. Automatic computation of transfer functions

    Science.gov (United States)

    Atcitty, Stanley; Watson, Luke Dale

    2015-04-14

    Technologies pertaining to the automatic computation of transfer functions for a physical system are described herein. The physical system is one of an electrical system, a mechanical system, an electromechanical system, an electrochemical system, or an electromagnetic system. A netlist in the form of a matrix comprises data that is indicative of elements in the physical system, values for the elements in the physical system, and structure of the physical system. Transfer functions for the physical system are computed based upon the netlist.

  13. Annual review in automatic programming

    CERN Document Server

    Halpern, Mark I; Bolliet, Louis

    2014-01-01

    Computer Science and Technology and their Application is an eight-chapter book that first presents a tutorial on database organization. Subsequent chapters describe the general concepts of Simula 67 programming language; incremental compilation and conversational interpretation; dynamic syntax; the ALGOL 68. Other chapters discuss the general purpose conversational system for graphical programming and automatic theorem proving based on resolution. A survey of extensible programming language is also shown.

  14. Automatic Detection of Fake News

    OpenAIRE

    Pérez-Rosas, Verónica; Kleinberg, Bennett; Lefevre, Alexandra; Mihalcea, Rada

    2017-01-01

    The proliferation of misleading information in everyday access media outlets such as social media feeds, news blogs, and online newspapers have made it challenging to identify trustworthy news sources, thus increasing the need for computational tools able to provide insights into the reliability of online content. In this paper, we focus on the automatic identification of fake content in online news. Our contribution is twofold. First, we introduce two novel datasets for the task of fake news...

  15. The Automatic Measurement of Targets

    DEFF Research Database (Denmark)

    Höhle, Joachim

    1997-01-01

    The automatic measurement of targets is demonstrated by means of a theoretical example and by an interactive measuring program for real imagery from a réseau camera. The used strategy is a combination of two methods: the maximum correlation coefficient and the correlation in the subpixel range. F...... interactive software is also part of a computer-assisted learning program on digital photogrammetry....

  16. Automatically-Programed Machine Tools

    Science.gov (United States)

    Purves, L.; Clerman, N.

    1985-01-01

    Software produces cutter location files for numerically-controlled machine tools. APT, acronym for Automatically Programed Tools, is among most widely used software systems for computerized machine tools. APT developed for explicit purpose of providing effective software system for programing NC machine tools. APT system includes specification of APT programing language and language processor, which executes APT statements and generates NC machine-tool motions specified by APT statements.

  17. Automatically-Programed Machine Tools

    Science.gov (United States)

    Purves, L.; Clerman, N.

    1985-01-01

    Software produces cutter location files for numerically-controlled machine tools. APT, acronym for Automatically Programed Tools, is among most widely used software systems for computerized machine tools. APT developed for explicit purpose of providing effective software system for programing NC machine tools. APT system includes specification of APT programing language and language processor, which executes APT statements and generates NC machine-tool motions specified by APT statements.

  18. Automatic translation among spoken languages

    Science.gov (United States)

    Walter, Sharon M.; Costigan, Kelly

    1994-01-01

    The Machine Aided Voice Translation (MAVT) system was developed in response to the shortage of experienced military field interrogators with both foreign language proficiency and interrogation skills. Combining speech recognition, machine translation, and speech generation technologies, the MAVT accepts an interrogator's spoken English question and translates it into spoken Spanish. The spoken Spanish response of the potential informant can then be translated into spoken English. Potential military and civilian applications for automatic spoken language translation technology are discussed in this paper.

  19. The Mark II Automatic Diflux

    Directory of Open Access Journals (Sweden)

    Jean L Rasson

    2011-07-01

    Full Text Available We report here on the new realization of an automatic fluxgate theodolite able to perform unattended absolute geomagnetic declination and inclination measurements: the AUTODIF MKII. The main changes of this version compared with the former one are presented as well as the better specifications we expect now. We also explain the absolute orientation procedure by means of a laser beam and a corner cube and the method for leveling the fluxgate sensor, which is different from a conventional DIflux theodolite.

  20. Automated single-slide staining device. [in clinical bacteriology

    Science.gov (United States)

    Wilkins, J. R.; Mills, S. M.

    1975-01-01

    An automatic single-slide Gram staining device is described. A timer-actuated solenoid controls the dispensing of gentian violet, Gram iodine solution, decolorizer, and 1% aqueous safranin in proper sequence and for the time required for optimum staining. The amount of stain or reagent delivered is controlled by means of stopcocks below each solenoid. Used stains and reagents can be flushed automatically or manually. Smears Gram stained automatically are equal in quality to those prepared manually. The time to complete one Gram cycle is 4.80 min.