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Journal articles on the topic 'Electronic Counter Measure'
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1
Blecic, Deborah D., Joan B. Fiscella, and Stephen E. Wiberley. "Measurement of Use of Electronic Resources: Advances in Use Statistics and Innovations in Resource Functionality." College & Research Libraries 68, no. 1 (2007): 26–44. http://dx.doi.org/10.5860/crl.68.1.26.
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The ICOLC guidelines and Project COUNTER codes of practice have advanced the measurement of use of electronic resources. At the same time, innovations in functionality within and among electronic resources are changing the environment in which use is measured. The present article explores measures of sessions and searches for one research library’s electronic resources. The article analyzes the transition from vendor-specific to COUNTER-compliant statistics, how vendors measure the running of search alerts, and the effects of federated searching on reported use. The analysis suggests that innovations in functionality may have changed the meaning of sessions and searches. The analysis also suggests the following principle: innovations in electronic resource functionality will necessitate advances in electronic resource usage measures to describe use meaningfully.
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Riley, William T., Sharon L. Berry, and Wallace A. Kennedy. "Rationale Exposure and Compliance to Relaxation Training." Psychological Reports 58, no. 2 (1986): 499–502. http://dx.doi.org/10.2466/pr0.1986.58.2.499.
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Exposure to a rationale as a method to increase compliance with relaxation was tested on 52 subjects with stress-related problems. Subjects were randomly assigned to a rationale or no-rationale condition and were trained in progressive relaxation. Compliance during the subsequent week was measured by electronic tape-rewind counters, self-report, and objective and subjective ratings of performance 1 wk. later. Use of a rationale did not have a significant effect on compliance with relaxation. Although the subjects' self-reported practice and measures of proficiency were correlated, these measures were not significantly correlated with the rewind-counter measure of compliance. Research and clinical applications of these unexpected findings were discussed.
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Haddow, Gaby. "Level 1 COUNTER Compliant Vendor Statistics are a Reliable Measure of Journal Usage." Evidence Based Library and Information Practice 2, no. 2 (2007): 84. http://dx.doi.org/10.18438/b83g6s.
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A review of:
 
 Duy, Joanna and Liwen Vaughan. “Can Electronic Journal Usage Data Replace Citation Data as a Measure of Journal Use? An Empirical Examination.” The Journal of Academic Librarianship 32.5 (Sept. 2006): 512-17.
 
 Abstract
 
 Objective – To identify valid measures of journal usage by comparing citation data with print and electronic journal use data.
 
 Design – Bibliometric study.
 
 Setting – Large academic library in Canada.
 
 Subjects – Instances of use were collected from 11 print journals of the American Chemical Society (ACS), 9 print journals of the Royal Society of Chemistry (RSC), and electronic journals in chemistry and biochemistry from four publishers – ACS, RSC, Elsevier, and Wiley. ACS, Elsevier, and Wiley journals in chemistry-related subject areas were sampled for Journal Impact Factors and citations data from the Institute for Scientific Information (ISI).
 
 Methods – Journal usage data were collected to determine if an association existed between: (1) print and electronic journal use; (2) electronic journal use and citations to journals by authors from the university; and (3) electronic journal use and Journal Impact Factors. 
 
 Between June 2000 and September 2003, library staff recorded the re-shelving of bound volumes and loose issues of 20 journal titles published by the ACS and the RSC. 
 
 Electronic journal usage data were collected for journals published by ACS, RSC, Elsevier, and Wiley within the ISI-defined chemistry and biochemistry subject area. Data were drawn from the publishers’ Level 1 COUNTER compliant usage statistics. These data equate 1 instance of use with a user viewing an HTML or PDF full text article. The period of data collection varied, but at least 2.5 years of data were collected for each publisher. 
 
 Journal Impact Factors were collected for all ISI chemistry-related journals published by ACS, Elsevier, and Wiley for the year 2001. Library Journal Utilization Reports (purchased from ISI) were used to determine the number of times researchers at the university cited journals in the same set of chemistry-related journals over the period 1998 to 2002. The authors call this “local citation data.” (512)
 
 The results from electronic journal use were also analysed for correlation with the total number of citations, as reported in the Journal Citation Reports, for each journal in the sample.
 
 Main results – The study found a significant correlation between the results for print journal and electronic journal usage. A similar finding was reported for correlation between electronic journal usage data and local citation data. No significant association was found between Journal Impact Factors and electronic journal usage data. However, when an analysis was conducted for the total number of citations to the journals (drawn from the Journal Impact Factor calculations in Journal Citation Reports) and electronic journal use, significant correlations were found for all publishers’ journals.
 
 Conclusion – Within the fields of chemistry and biochemistry, electronic journal usage data provided by publishers are an equally valid method of determining journal usage as print journal re-shelving data. The results of the study indicate this association is valid even when print journal subscriptions have ceased. Local citation data (the citations made by researchers at the institution being studied) also provide a valid measure of journal use when compared with electronic journal usage results. Journal Impact Factors should be used with caution when libraries are making journal collection decisions.
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Doukas, Nikolaos, and Antonios Andreatos. "Advancing Electronic Assessment." International Journal of Computers Communications & Control 2, no. 1 (2007): 56. http://dx.doi.org/10.15837/ijccc.2007.1.2337.
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A computer-aided assessment system is presented that has been designed to produce and deliver tests to the Hellenic Air Force Academy students and assess their performance. The system is called e-Xaminer and is intended for use in both undergraduate courses and distance learning post-graduate programs of the Academy. The e-Xaminer uses meta-language concepts to automatically generate tests, based on parametrically designed questions. Tests intended for different students may entail differences in the arithmetic parameters. Additionally, different tests may be composed from different but equivalent and randomly chosen sub-questions. The system may also present each student with a scrambled sequence of the same questions, as a counter-measure against cheating. Examinations are delivered via a webbased interface; an automatically generated program marks the answers submitted by each student. e-Xaminer allows the implementation of question parameterisation and counter cheating measures, so that electronic tests become significantly different and more powerful than traditional ones. Sample problems are presented which show the additional features of the e-Xaminer, intended to facilitate the work of the course organiser in issuing and marking the tests, as well as in combating cheating. This paper focuses on some new, advanced types of questions enabled by electronic assessment; it then compares paper-and-pencil exams to electronic exams; results from a small student poll on the electronic exams are also presented. Finally, the directions for planned future work are outlined.
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O’Hern, T. J., L. d’Agostino, and A. J. Acosta. "Comparison of Holographic and Coulter Counter Measurements of Cavitation Nuclei in the Ocean." Journal of Fluids Engineering 110, no. 2 (1988): 200–207. http://dx.doi.org/10.1115/1.3243535.
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Holographic and Coulter Counter detection techniques were jointly used to measure the concentration density distribution of cavitation nuclei in the ocean. Comparison of the two techniques indicates that Coulter Counter analysis measures particulate contents up to an order of magnitude smaller than indicated by the holographic method and may also produce a distorted concentration density distribution. Several possible explanations of the observed discrepancies are proposed and discussed, including fundamental differences between the in situ holographic samples and the collected samples examined with the Coulter Counter, differences between the unknown electrical conductivity of the measured particles in the sea water samples and the non-conductive polystyrene spheres used to calibrate the Coulter Counter, the rupture of aggregate particles in the flow through the Coulter Counter orifice, the effect of electronic noise on the Coulter Counter signal, and the influence of statistical sampling error. The particle number concentration density distributions decrease approximately with the fourth power of the particle radius in the observed size range of 10 to 50 μm radius. Both sets of data indicate an increase in particle concentration near the bottom of the thermocline, and the holographic bubble concentrations also indicate a similar behavior. Much higher concentrations of particles were detected in the ocean, according to the holographic analysis, than in typical cavitation test facilities. Consideration of the static mechanical equilibrium of individual air bubbles suggests that the average tensile strength of the ocean waters examined in this study is not larger than about 2000 Pa and occasionally as low as about 100 Pa.
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Yingst, Jessica, Jonathan Foulds, Susan Veldheer, et al. "Measurement of Electronic Cigarette Frequency of Use Among Smokers Participating in a Randomized Controlled Trial." Nicotine & Tobacco Research 22, no. 5 (2018): 699–704. http://dx.doi.org/10.1093/ntr/nty233.
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Abstract Background The United States Food and Drug Administration has prioritized understanding the dependence potential of electronic cigarettes (e-cigs). Dependence is often estimated in part by examining frequency of use; however measures of e-cig use are not well developed because of varying product types. This study used an e-cig automatic puff counter to evaluate the value of self-reported e-cig use measures in predicting actual use (puffs). Methods Data were collected from a two-site randomized placebo-controlled trial evaluating the effects of e-cigs on toxicant exposure in smokers attempting to reduce their cigarette consumption. Participants randomized to an e-cig condition self-reported their e-cig frequency of use (times per day—one “time” consists of around 15 puffs or lasts around 10 minutes) on the Penn State Electronic Cigarette Dependence Index (PSECDI) and kept daily diary records of the number of puffs per day from the e-cig automatic puff counter. A linear mixed-effects model was used to determine the predictive value of the times per day measure. Correlations were used to further investigate the relationship. Results A total of 259 participants with 1165 observations of e-cig use were analyzed. Self-reported e-cig use in times per day was a significant predictor of e-cig puffs per day (p < .01). The Spearman correlation between measures was r equal to .58. Examination of individual participant responses revealed some potential difficulties reporting and interpreting times per day because of the difference in use patterns between cigarettes and e-cigs. Conclusion This study provides evidence that the self-reported PSECDI measure of times per day is a significant predictor of actual frequency of e-cig puffs taken. Implications Self-reported measures of e-cig frequency of use are predictive of actual use, but quantifying e-cig use in patterns similar to cigarettes is problematic.
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George, Jomon, P. Sinchu, K. Ajith Kumar, and T. Santhana Krishnan. "Towed Acoustic Countermeasures for Defending Acoustic Homing Torpedoes." Defence Science Journal 69, no. 6 (2019): 607–12. http://dx.doi.org/10.14429/dsj.69.13337.
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The growing torpedo threat to ships and submarines demands effective countermeasures for defence. Detection, classification and localisation of an attacking torpedo is the first step towards launching effective countermeasures. Studies are on the rise to use the existing sonar systems to detect torpedoes and subsequently use countermeasures. The use of towed array sonar systems for torpedo detection and acoustic counter measures are the most recent and not reported much in open literature. This paper presents a modular acoustic counter measure approach using towed decoy against acoustic homing torpedoes. Describes the technologies and algorithms required for different modes of towed decoy, which is effective against both active and passive acoustic homing torpedoes. Towed decoy signal generation schemes and their realisation using digital signal processing hardware are outlined in this paper.
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Sykes, L., E. R. S. Ross, E. S. Powell, and J. Edwards. "Objective measurement of use of the reciprocating gait orthosis (RGO) and the electrically augmented RGO in adult patients with spinal cord lesions." Prosthetics and Orthotics International 20, no. 3 (1996): 182–90. http://dx.doi.org/10.3109/03093649609164441.
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The purpose of the study was to measure objectively the home use of the reciprocating gait orthosis (RGO) and the electrically augmented (hybrid) RGO. It was hypothesised that RGO use would increase following provision of functional electrical stimulation (FES). Five adult subjects participated in the study with spinal cord lesions ranging from C2 (incomplete) to T6. Selection criteria included active RGO use and suitability for electrical stimulation. Home RGO use was measured for up to 18 months by determining the mean number of steps taken per week. During this time patients were supplied with the hybrid system. Three alternatives for the measurement of steps taken were investigated: a commercial digital pedometer, a magnetically actuated counter and a heel contact switch linked to an electronic counter. The latter was found to be the most reliable system and was used for all measurements. Additional information on RGO use was acquired using three patient diaries administered throughout the study and before and after the provision of the hybrid system. Testing of the original hypothesis was complicated by problems in finding a reliable measurement tool and difficulties with data collection. However, the results showed that overall use of the RGO, whether with or without stimulation, is low. Statistical analysis of the step counter results was not realistic. No statistically significant change in RGO use was found between the patient diaries. The study suggests that the addition of electrical stimulation does not increase RGO use. The study highlights the problem of objectively measuring orthotic use in the home.
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Lee, Youngjun, and Young Sam Lee. "A Low-Cost Surge Current Detection Sensor with Predictive Lifetime Display Function for Maintenance of Surge Protective Devices." Sensors 20, no. 8 (2020): 2310. http://dx.doi.org/10.3390/s20082310.
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In this study, a low-cost surge current detection sensor (SCDS) that can measure high current surges using a low-current toroidal coil is proposed for maintenance of a surge protective device (SPD). The proposed SCDS is designed to display the predicted lifetime of the SPD based on the magnitude of surge current and number of surges. In addition, a method for measuring high surge current using a toroidal coil that can usually measure only low current is proposed. A lightning strike counter consists of a microcontroller with a low-power liquid crystal display (LCD) driver, 3 VDC lithium battery, and signal conditioning circuit that converts amplitude information of the surge current into duration information of a negative pulse to facilitate processing in the microcontroller. In this paper, we propose a software algorithm that can calculate the remaining lifetime of SPD based on the amplitude and number of surge currents. There is also an option to select the capacity of the surge protective device and the number of phase lines, allowing it to assess the predicted lifetime for various types of Class II SPDs. The proposed SCDS is measured as 7.2 μA from the battery power consumption test, and the service life is calculated to be 11.1 years. It meets the International Standard IEC62561-6 test conditions of the lightning strike counter and is expected to be useful in the maintenance of SPDs and lightning protection systems.
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Sawal, Sabda, Aswadul Fitri Saiful rahman, and Mayda Waruni Kasrani. "PERANCANGAN ALAT OLAHRAGA PENGHITUNG PULL UP BERBASIS MIKROKONTROLER MENGUNAKAN SENSOR ULTRASONIK." Jurnal Teknik Elektro Uniba (JTE Uniba) 4, no. 1 (2019): 36–40. http://dx.doi.org/10.36277/jteuniba.v4i1.53.
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The era of modernization like this technology is an important role in everyday life. The development of technological knowledge has brought people to a better era. so with the development of many people who often do research, In this study the author aims to design a microcontroller-based pull up device using ultrasonic sensors, to facilitate the pull up counter, this system consists of various electronic components such as Adruino Nano, bluetooth sensors, ultrasonic sensors, and Text Running LEDs, this tool will be operated using an Android cell phone that has been connected to Bluetooth HC-05 then press (start / stop) to turn the device on and off. The ultrasonic sensor is used to measure radio waves from sensors to objects. The results of these sensors will be displayed via LED Text Running and Android phones. One of the uses of this tool is in health sciences for the selection of TNI and POLRI admission. Perform medical tests with manual pull up calculations, longer than using a microcontroller-based pull up counter using ultrasonic sensors.
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Jian, Aoqun, Huiming Li, Yixia Zhang, Qianqian Duan, Qianwu Zhang, and Shengbo Sang. "Cell Density Detector Based on Light Beam Focusing." Micromachines 9, no. 11 (2018): 592. http://dx.doi.org/10.3390/mi9110592.
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Although the lab-on-a-chip system has been successfully applied in a wide variety of fields, the goal of achieving a cell counter with simple operation, low cost, and high accuracy still attracts continuous research efforts. In this paper, the authors explore a cell counter based on light beam focusing to measure the density of adherent cells. In this sensor, the light emitted from the optical fibers is collimated by the collimating lens formed in polydimethylsiloxane (PDMS). The uniformly attached adherent cells act as a convex lens, focusing the collimated light propagated through them. The intensity of the focused light indicates the density of the adherent cells. For Hela cells, a detection limit of 8.3 × 104 cells/mL with a detection range from 0.1 × 106 cells/mL to 1.0 × 106 cells/mL is achieved. This sensor is particularly useful for drug screening, cell pathology analysis, and cancer pre-diagnosis.
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Rao, G. Kumaraswamy, Sreehari Rao, and Sudhir Kumar Chaudhuri. "Networking of Tracking Radars of Two Different SAM Weapons to Protect the Missile in Intensive Jamming Environment." Defence Science Journal 68, no. 1 (2017): 70. http://dx.doi.org/10.14429/dsj.68.10993.
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<p class="p1">Many countries including India use the Russian made SAM-3 (Pechora) surface-to-air missile (SAM) weapon systems to protect their strategic and tactical infrastructure. The mathematical computations done in this paper, conclusively prove<span class="s1">s </span>that SA-125 low-blow tracking radar of Pechora is vulnerable to jamming. A project was undertaken to overcome the jamming vulnerability of Pechora aiming to design and develop an electronic counter counter measure system. This system networked the Pechora tracking radar with a western tracking radar, Flycatcher, developed by HSA Holland. The latter radar works in a MMW band. When jamming (x band) is employed by enemy aircraft the Low blow radar failed to provide target coordinates. But the flycatcher tracking radar which is tracking in Ka band provided the tracking coordinates (after parallax correction) to the command guidance computer. This way the missile guidance is protected until missile warhead in missile blasts near the target. Extensive trials carried out with a number of aircraft sorties proved the success of this developed system against jamming.</p>
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Overmars, Anthony, and Sitalakshmi Venkatraman. "An Efficient Golden Ratio Method for Secure Cryptographic Applications." Mathematical and Computational Applications 23, no. 4 (2018): 58. http://dx.doi.org/10.3390/mca23040058.
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With the increase in the use of electronic transactions in everyday life, secure communications and data storage to withstand any kind of attack is warranted. The golden ratio, being the most irrational among irrational numbers, can be used in elliptic curve cryptosystems, power analysis security, and other applications. However, in such applications, cryptographic operations should take place very quickly before the keys are extracted or decoded by the attackers. This paper proposes an efficient method of golden ratio computation in cryptography to resist information security breaches. We compare our new golden ratio method with the well-known Fibonacci sequence method. The experimental results show that our proposed method is more efficient than the Fibonacci sequence method. Our golden ratio method with infinite precision provides reliable counter measure strategy to address the escalating security attacks.
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Liu, Tao, Dongqi Li, Jianjun Chen, Yanbing Chen, Tao Yang, and Jianhua Cao. "Active Learning on Dynamic Clustering for Drift Compensation in an Electronic Nose System." Sensors 19, no. 16 (2019): 3601. http://dx.doi.org/10.3390/s19163601.
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Drift correction is an important concern in Electronic noses (E-nose) for maintaining stable performance during continuous work. A large number of reports have been presented for dealing with E-nose drift through machine-learning approaches in the laboratory. In this study, we aim to counter the drift effect in more challenging situations in which the category information (labels) of the drifted samples is difficult or expensive to obtain. Thus, only a few of the drifted samples can be used for label querying. To solve this problem, we propose an innovative methodology based on Active Learning (AL) that selectively provides sample labels for drift correction. Moreover, we utilize a dynamic clustering process to balance the sample category for label querying. In the experimental section, we set up two E-nose drift scenarios—a long-term and a short-term scenario—to evaluate the performance of the proposed methodology. The results indicate that the proposed methodology is superior to the other state-of-art methods presented. Furthermore, the increasing tendencies of parameter sensitivity and accuracy are analyzed. In addition, the Label Efficiency Index (LEI) is adopted to measure the efficiency and labelling cost of the AL methods. The LEI values indicate that our proposed methodology exhibited better performance than the other presented AL methods in the online drift correction of E-noses.
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Zhu, Xunmin, Nan Li, Jianyu Yang, Xingfan Chen, and Huizhu Hu. "Displacement Detection Decoupling in Counter-Propagating Dual-Beams Optical Tweezers with Large-Sized Particle." Sensors 20, no. 17 (2020): 4916. http://dx.doi.org/10.3390/s20174916.
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As a kind of ultra-sensitive acceleration sensing platform, optical tweezers show a minimum measurable value inversely proportional to the square of the diameter of the levitated spherical particle. However, with increasing diameter, the coupling of the displacement measurement between the axes becomes noticeable. This paper analyzes the source of coupling in a forward-scattering far-field detection regime and proposes a novel method of suppression. We theoretically and experimentally demonstrated that when three variable irises are added into the detection optics without changing other parts of optical structures, the decoupling of triaxial displacement signals mixed with each other show significant improvement. A coupling detection ratio reduction of 49.1 dB and 22.9 dB was realized in radial and axial directions, respectively, which is principally in accord with the simulations. This low-cost and robust approach makes it possible to accurately measure three-dimensional mechanical quantities simultaneously and may be helpful to actively cool the particle motion in optical tweezers even to the quantum ground state in the future.
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Upadhyay, Dishant B., Siddharth B. Agrawal, Anita Verma, Neeraj Mahajan, and Nilima Shah. "Effect of prenap coffee on daytime sleepiness in university students." International Journal of Research in Medical Sciences 8, no. 4 (2020): 1469. http://dx.doi.org/10.18203/2320-6012.ijrms20201344.
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Background: Daytime sleepiness impairs academic performance in college students. Napping is a counter to daytime sleepiness, but often causes sleep inertia on waking up. Caffeine absorption from beverages peaks 30 minutes after their ingestion presenting a window of opportunity to have a short nap such that the time of waking up is in synchrony with onset of action of caffeine; thereby abolishing post-nap inertia and achieving synergistic mitigation of fatigue.Objective of this study to assess effect of nap, coffee, ‘coffee and nap’ and ‘wakeful break without coffee’ on daytime sleepiness using Psychomotor Vigilance Tests (PVTs) and Karolinska Sleepiness Scale (KSS) score.Methods: After Institutional Review Board clearance, 10 subjects (aged 19-21 years) were selected using their Epworth Sleepiness Scale score (ESS >5) and called to the study site 8 times on different days to be exposed to these four conditions twice - only coffee (standardized), only nap (30min), coffee immediately followed by 30min nap, wakeful break (30min) without coffee or nap. Pre and post scores were recorded for electronic PVT (Reaction Time and Motor Responsiveness) and KSS for each attempt.Results: Test outcome was associated with intervention used (p=0.00001). ‘Nap only’ group was associated with deterioration in outcomes (p=0.00001), accounting for highest percentage (41%) of all deteriorated test outcomes. ‘Coffee only’ group was associated with improvement in test scores (p=0.00001), responsible for highest share (38.8%) of all improved test outcomes. ‘Nap only’ and ‘Coffee-nap’ group showed improvement in 11.67% and 21.67% of outcomes respectively. Conclusions: Pre-nap coffee is a proactive counter-measure to post nap sleep inertia.
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Gorczyca, Zibigniew, Kazimierz Jeleń, and Tadeusz Kuc. "Gas Counting System for 14C Dating of Small Samples in the Kraków Laboratory." Radiocarbon 40, no. 1 (1997): 129–35. http://dx.doi.org/10.1017/s0033822200017963.
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The application of traditional gas or liquid scintillation counting (LSC) is necessary for assessing radionuclide activity in countries without operating accelerator mass spectrometry (AMS) facilities. A simple and relatively inexpensive system of mini gas counters for measurement of radiocarbon in archaeological and environmental samples has been set up recently in the Kraków laboratory (Department of Environmental Physics, University of Mining and Metallurgy). The system is composed of a gas purification and counter filling line, three identical 15-mL copper/quartz counters, active and passive shielding, and an electronic unit with data acquisition. One counter measures 22 mg of carbon as CO2 with efficiency >95% at a background reduced to 0.044 cpm by a NaJ(Tl) guard counter and lead shield. The detection limit (1 σ) for a two-week measurement of 48 mL of CO2 is 0.52 pMC. The corresponding counting error of a 100 pMC environmental sample is 1.3 pMC for 22 mgC (one counter) and 0.75 pMC for 66 mgC (three counters filled with the same sample).
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M.S., Josephine, Lakshmanan L., Resmi R. Nair, Visu P., Ganesan R., and R. Jothikumar. "Monitoring and sensing COVID-19 symptoms as a precaution using electronic wearable devices." International Journal of Pervasive Computing and Communications 16, no. 4 (2020): 341–50. http://dx.doi.org/10.1108/ijpcc-06-2020-0067.
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Purpose The purpose fo this paper is to Monitor and sense the sysmptoms of COVID-19 as a preliminary measure using electronic wearable devices. This variability is sensed by electrocardiograms observed from a multi-parameter monitor and electronic wearable. This field of interest has evolved into a wide area of investigation with today’s advancement in technology of internet of things for immediate sensing and processing information about profound pain. A window span is estimated and reports of profound pain data are used for monitoring heart rate variability (HRV). A median heart rate is considered for comparisons with a diverse range of variable information obtained from sensors and monitors. Observations from healthy patients are introduced to identify how root mean square of difference between inter beat intervals, standard deviation of inter-beat intervals and mean heart rate value are normalized in HRV analysis. Design/methodology/approach The function of a human heart relates back to the autonomic nervous system, which organizes and maintains a healthy maneuver of inter connected organs. HRV has to be determined for analyzing and reporting the status of health, fitness, readiness and possibilities for recovery, and thus, a metric for deeming the presence of COVID-19. Identifying the variations in heart rate, monitoring and assessing profound pain levels are potential lives saving measures in medical industries. Findings Experiments are proposed to be done in electrical and thermal point of view and this composition will deliver profound pain levels ranging from 0 to 10. Real time detection of pain levels will assist the care takers to facilitate people in an aging population for a painless lifestyle. Originality/value The presented research has documented the stages of COVID-19, symptoms and a mechanism to monitor the progress of the disease through better parameters. Risk factors of the disease are carefully analyzed, compared with test results, and thus, concluded that considering the HRV can study better in the presence of ignorance and negligence. The same mechanism can be implemented along with a global positioning system (GPS) system to track the movement of patients during isolation periods. Despite the stringent control measurements for locking down all industries, the rate of affected people is still on the rise. To counter this, people have to be educated about the deadly effects of COVID-19 and foolproof systems should be in place to control the transmission from affected people to new people. Medications to suppress temperatures, will not be sufficient to alter the heart rate variations, and thus, the proposed mechanism implemented the same. The proposed study can be extended to be associated with Government mobile apps for regular and a consortium of single tracking. Measures can be taken to distribute the low-cost proposal to people for real time tracking and regular updates about high and medium risk patients.
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Agaku, Israel Terungwa, Satomi Odani, David Homa, Brian Armour, and Rebecca Glover-Kudon. "Discordance between perceived and actual tobacco product use prevalence among US youth: a comparative analysis of electronic and regular cigarettes." Tobacco Control 28, no. 2 (2018): 212–19. http://dx.doi.org/10.1136/tobaccocontrol-2017-054113.
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ImportanceTwo components of social norms—descriptive (estimated prevalence) and injunctive (perceived acceptability)—can influence youth tobacco use.ObjectiveTo investigate electronic cigarettes (e-cigarette) and cigarette descriptive norms and measure the associations between overestimation of e-cigarette and cigarette prevalence and tobacco-related attitudes and behaviours.DesignCross-sectional.SettingSchool-based, using paper-and-pencil questionnaires.ParticipantsUS 6th-12th graders participating in the 2015 (n=17 711) and 2016 (n=20 675) National Youth Tobacco Survey.ExposureStudents estimated the percent of their grade-mates who they thought used e-cigarettes and cigarettes; the discordance between perceived versus grade-specific actual prevalence was used to categorise students as overestimating (1) neither product, (2) e-cigarettes only, (3) cigarettes only or (4) both products.OutcomesProduct-specific outcomes were curiosity and susceptibility (never users), as well as ever and current use (all students). Descriptive and multivariable logistic regression analyses were performed. Statistical significance was at P<0.05. Data were weighted to be nationally representative.ResultsMore students overestimated cigarette (74.0%) than e-cigarette prevalence (61.0%; P<0.05). However, the associations between e-cigarette-only overestimation and e-cigarette curiosity (adjusted OR (AOR)=3.29), susceptibility (AOR=2.59), ever use (AOR=5.86) and current use (AOR=8.15) were each significantly larger than the corresponding associations between cigarette-only overestimation and cigarette curiosity (AOR=1.50), susceptibility (AOR=1.54), ever use (AOR=2.04) and current use (AOR=2.52). Despite significant declines in actual e-cigarette use prevalence within each high school grade level during 2015–2016, perceived prevalence increased (11th and 12th grades) or remained unchanged (9th and 10th grades).ConclusionsFour of five US students overestimated peer e-cigarette or cigarette use. Counter-tobacco mass media messages can help denormalise tobacco use.
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Hirsch, Stefan, Markus Strobel, Wolfram Klingler, Jan Dirk Schulze Spüntrup, Zili Yu, and Joachim N. Burghartz. "Realization and opto-electronic Characterization of linear Self-Reset Pixel Cells for a high dynamic CMOS Image Sensor." Advances in Radio Science 17 (September 20, 2019): 239–47. http://dx.doi.org/10.5194/ars-17-239-2019.
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Abstract. Conventional CMOS image sensors with a linear transfer characteristic only have a limited dynamic range (DR) of about 60–70 dB. To extend the dynamic range considerably, the already successfully demonstrated concept of a linear self-reset pixel was employed in this work. With the self-reset concept the limit of the maximum analyzable photo generated charge (Qmax) during the exposure time is extended to a multiple of the saturation charge of the photo diode (Qsat) by asynchronous self-resets of the photo diode. Additionally, the remaining charge at the end of the exposure time is evaluated to increase the resolution of the opto-electronic conversion. Thus we achieved pixels with a DR of more than 120 dB combined with an improved low light sensitivity using a pinned photodiode. This paper focuses on two topics: One is the realization and opto-electronic characterization of further self-reset pixel cells for an experimental optimization of the functionality with respect to linearity and high signal-to-noise ratio. The second one is the assembly and digital readout of a cluster structure composed of 16 × 16 pixel matrix on a CMOS test chip. One constraint for later usage of the pixel cells in a high resolution (> VGA) image sensor is the required layout area of the individual circuit blocks. For the cluster structure a size of 20 × 20 µm2 for the analog part of the pixel containing the photo diode and the other analog circuit blocks, the comparator and the signal shaping, was desired. The circuit design and layout work included several variants of the pinned photo diode with floating diffusion (FD) readout node, which is also used for analog voltage storage, and different control transistors. Further for the comparator a telescopic differential amplifier with high gain was implemented as well as peripheral 10 bit counter/shift register as static and dynamic versions. Test chips have been fabricated in an advanced 0.18 µm CMOS technology for optical sensors with low leakage currents. The sensor chips have been evaluated with a specifically developed test setup which gives the flexibility to arbitrarily generate the digital and analog control signals in terms of timing and voltage levels. Based on this, the number of asynchronous self-resets could be read out from the counters of the pixel cells as coarse values. The remaining charge at the end of the integration time was digitized using a ramp analog to digital conversion and could be read out as fine values. An opto-electronic characterization with adjustable illumination from 0 lx to 13 klx was done to measure and analyze the opto-electronic conversion function (OECF) and the noise of six different self-reset pixel cells having the high-gain differential amplifier as comparator. Finally the coarse values of two implemented 16 × 16 pixel clusters could be read out as a mini camera using a lens for optical image formation.
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Boogers, Eric, Alessandro Borella, and Riccardo Rossa. "Improved electronics for 3He based neutron counters." EPJ Web of Conferences 225 (2020): 05002. http://dx.doi.org/10.1051/epjconf/202022505002.
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Several non-destructive assays techniques have been developed for the measurement of fissile materials in the fields of dismantling, decommissioning, nuclear security, and nuclear safeguards. Among these techniques, neutron coincidence counting is based on the detection of time-correlated neutrons from induced and spontaneous fissions. 3He Tubes have been the primary choice for neutron coincidence counting due to their high detection efficiency, rather low sensitivity to gamma-rays and proven field reliability. This paper covers the implementation of a new electronic setup to a Canberra WM3400 neutron coincidence counter. First we describe the properties of the used detectors, with focus on the characteristics of the default electronics and highlight its limitations such as the high input capacitance, short shaping time and the necessity for selected tubes. We then propose the new electronic setup to overcome these limitations. This setup includes a dedicated preamp for every tube , the possibility to adjust for gain differences between the tubes and a better optimised shaping time for 3He detectors. We carried out measurements with the two electronic systems to compare their performances in terms of gamma-ray sensitivity, efficiency and die-away time. The gamma ray sensitivity was measured with calibrated 137Cs and a 60Co sources at the Laboratory for Nuclear Calibration of the Belgian Nuclear Research Centre with dose rates between 10 μSv/h and 50 mSv/h. Measurements with a 252Cf source were used to determine the die-away time of the system and the total measurement efficiency for the considered geometry. The measurements showed that, with the default electronics, neutron count-rates are already affected by gamma radiation at a dose rate of 10÷30 μSv/h. On the other hand the neutron coincidence counter equipped with the new electronics proved to be insensitive to gamma-radiation up to a dose rate of at least 20 mSv/h. The high-voltage set with the new electronics is lower than in the case of the default electronics and is within the range recommended by the tubes manufacturer. The die-away time was not affected by the used electronics. A reduction of about 20% in the neutron detection efficiency due to the used discriminator threshold was observed.
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Al-Gayem, Qais, Hussain F. Jaafar, and Saad S. Hreshee. "Self-diagnostic approach for cell counting biosensor." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 2 (2021): 688. http://dx.doi.org/10.11591/ijeecs.v22.i2.pp688-698.
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<span id="docs-internal-guid-66699b2e-7fff-5c7e-3931-5de920908f42"><span>In this research, a test monitoring strategy for an array of biosensors is proposed. The principle idea of this diagnostic technique is to measure and compare the impedance of each sensor in the array to achieve fully controlled online health monitoring technique at the system level. The work includes implementation of the diagnostic system, system architecture for analogue part, and SNR analysis. The technique has been applied on a cell coulter counting biochip where the design and fabrication of this sensing chip with electrodes make the coulter counter be an effective mean to count and analyses the cells in a blood sample. The experimental results show that the indication factor of the sensing electrodes has increased from 1 to 1.8 gradually depending on the fault level.</span></span>
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Wang, Fang, Longfei Chen, Jiaomeng Zhu, Xuejia Hu, and Yi Yang. "A Phosphorescence Quenching-Based Intelligent Dissolved Oxygen Sensor on an Optofluidic Platform." Micromachines 12, no. 3 (2021): 281. http://dx.doi.org/10.3390/mi12030281.
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Continuous measurement of dissolved oxygen (DO) is essential for water quality monitoring and biomedical applications. Here, a phosphorescence quenching-based intelligent dissolved oxygen sensor on an optofluidic platform for continuous measurement of dissolved oxygen is presented. A high sensitivity dissolved oxygen-sensing membrane was prepared by coating the phosphorescence indicator of platinum(II) meso-tetrakis(pentafluorophenyl)porphyrin (PtTFPP) on the surface of the microfluidic channels composed of polydimethylsiloxane (PDMS) microstructure arrays. Then, oxygen could be determined by its quenching effect on the phosphorescence, according to Stern–Volmer model. The intelligent sensor abandons complicated optical or electrical design and uses a photomultiplier (PMT) counter in cooperation with a mobile phone application program to measure phosphorescence intensity, so as to realize continuous, intelligent and real-time dissolved oxygen analysis. Owing to the combination of the microfluidic-based highly sensitive oxygen sensing membrane with a reliable phosphorescent intensity detection module, the intelligent sensor achieves a low limit of detection (LOD) of 0.01 mg/L, a high sensitivity of 16.9 and a short response time (22 s). Different natural water samples were successfully analyzed using the intelligent sensor, and results demonstrated that the sensor features a high accuracy. The sensor combines the oxygen sensing mechanism with optofluidics and electronics, providing a miniaturized and intelligent detection platform for practical oxygen analysis in different application fields.
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Teggert, Andrew, Harish Datta, and Zulfiqur Ali. "Biomarkers for Point-of-Care Diagnosis of Sepsis." Micromachines 11, no. 3 (2020): 286. http://dx.doi.org/10.3390/mi11030286.
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Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection. In 2017, almost 50 million cases of sepsis were recorded worldwide and 11 million sepsis-related deaths were reported. Therefore, sepsis is the focus of intense research to better understand the complexities of sepsis response, particularly the twin underlying concepts of an initial hyper-immune response and a counter-immunological state of immunosuppression triggered by an invading pathogen. Diagnosis of sepsis remains a significant challenge. Prompt diagnosis is essential so that treatment can be instigated as early as possible to ensure the best outcome, as delay in treatment is associated with higher mortality. In order to address this diagnostic problem, use of a panel of biomarkers has been proposed as, due to the complexity of the sepsis response, no single marker is sufficient. This review provides background on the current understanding of sepsis in terms of its epidemiology, the evolution of the definition of sepsis, pathobiology and diagnosis and management. Candidate biomarkers of interest and how current and developing point-of-care testing approaches could be used to measure such biomarkers is discussed.
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Zhang, Qiang. "An Improved Polar-Coordinate Navigation System with the Establishment of Electronic Counter-counter Measures Capabilities." Defence Science Journal 63, no. 1 (2013): 114–18. http://dx.doi.org/10.14429/dsj.63.2519.
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Harrell, Paul T., Thomas H. Brandon, Kelli J. England, et al. "Vaping Expectancies: A Qualitative Study among Young Adult Nonusers, Smokers, Vapers, and Dual Users." Substance Abuse: Research and Treatment 13 (January 2019): 117822181986621. http://dx.doi.org/10.1177/1178221819866210.
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Background: “Expectancies,” or beliefs about outcomes, robustly correlate with and predict several behaviors including electronic nicotine delivery system (“e-cigarette”) use. However, there is limited qualitative research available regarding relevant e-cigarette vaping expectancies. Objectives: The present study used a qualitative approach to derive and refine e-cigarette expectancy themes among young adults. Methods: We conducted 12 focus groups and two individual interviews with young adult nonusers, e-cigarette vapers, cigarette smokers, and dual users to assess beliefs about the effects of e-cigarettes. After a series of open-ended questions, follow-up questions assessed reactions to domains previously examined in expectancy measures for cigarette smoking and e-cigarette vaping. The constant comparative method was used to derive themes from transcripts. Results: Four main themes ( Positive Reinforcement, Social Benefits, Negative Affect Reduction, Negative Consequences) emerged from the results. Each theme contained three associated subthemes ( Positive Reinforcement: Sensorimotor Experiences, Taste, Stimulation; Social Benefits: Social Facilitation, Influence on Others, Convenience; Negative Affect Reduction: Stress Reduction, Appetite Reduction, Boredom Reduction; and Negative Consequences: Health Risks, Addiction, Secondhand Effects). Conclusions/importance: Previously identified smoking expectancies appear relevant for young adult vaping, with some notable refinements. Positive reinforcement aspects encompassed aerosol clouds, vaping tricks, and unique flavors. Social benefits included influencing others via social media and competitive activity, as well as the convenience of use in a variety of places. Negative affect reduction was controversial among user groups, but vaping was seen as more interesting than smoking and thus more effective at boredom reduction. Young adults were uncertain regarding negative consequences, but appreciated a potential for secondhand effects. Measure refinement via qualitative research and future field testing can enhance our understanding of this relatively new behavior, supporting tobacco control surveillance, marketing/labeling regulations, and counter-advertising development/evaluation.
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Clark, Jason. "Self-Calibration and Performance Control of MEMS with Applications for IoT." Sensors 18, no. 12 (2018): 4411. http://dx.doi.org/10.3390/s18124411.
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A systemic problem for microelectromechanical systems (MEMS) has been the large gap between their predicted and actual performances. Due to process variations, no two MEMS have been able to perform identically. In-factory calibration is often required, which can represent as much as three-fourths of the manufacturing costs. Such issues are challenges for microsensors that require higher accuracy and lower cost. Towards addressing these issues, this paper describes how microscale attributes may be used to enable MEMS to accurately calibrate themselves without external references, or enable actual devices to match their predicted performances. Previously, we validated how MEMS with comb drives can be used to autonomously self-measure their change in geometry in going from layout to manufactured, and we verified how MEMS can be made to increase or decrease their effective mass, damping, and or stiffness in real-time to match desired specifications. Here, we present how self-calibration and performance control may be used to accurately sense and extend the capabilities of a variety of sensing applications for the Internet of things (IoT). Discussions of IoT applications include: (1) measuring absolute temperature due to thermally-induced vibrations; (2) measuring the stiffness of atomic force microscope or biosensor cantilevers; (3) MEMS weighing scales; (4) MEMS gravimeters and altimeters; (5) inertial measurement units that can measure all four non-inertial forces; (6) self-calibrating implantable pressure sensors; (7) diagnostic chips for quality control; (8) closing the gap from experiment to simulation; (9) control of the value of resonance frequency to counter drift or to match modes; (10) control of the value of the quality factor; and (11) low-amplitude Duffing nonlinearity for wideband high-Q resonance.
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Kamal, Zarul Khaliff, Noriszura Ismail, and Ros Idayuwati Alaudin. "Application of Cluster Analysis in Building Retirement Wealth Adequacy Profile: A Case Study in Malaysia." Journal of Computational and Theoretical Nanoscience 17, no. 2 (2020): 689–99. http://dx.doi.org/10.1166/jctn.2020.8706.
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This study aims to examine retirement wealth adequacy based on the underlying structure of households’ attributes from Household Expenses and Income Survey 2014 (HEIS14) data. In specific, the two-step cluster analysis is carried out to build the profiles that will be used to compute retirement wealth adequacy. In general, the data that contains both numerical and categorical variables do not suit well for pure hierarchical and non-hierarchical cluster analysis. To counter this issue, the twostep cluster analysis employs log-likelihood function to measure the distance between two clusters, where the numerical variables are assumed to follow a normal distribution, meanwhile categorical variables are assumed to follow the multinomial distribution. We have used Schwarz’s Bayesian Criterion (BIC) and Akaike’s Information Criterion (AIC) to determine the number of clusters to be formed. In addition, we employed a Silhouette measure of cohesion and separation to examine the overall goodness-of-fit. The analysis successfully generated a solution of three clusters. The first cluster represents households with the majority of SPM holders, receiving an average gross monthly salary of RM 5058.73 and working in the private sector. The second cluster represents households with the majority of diploma holder/professional certificate, receiving an average gross monthly salary of RM 10154.06 and most of them (92%) working in the private sector. The third cluster represents households who work in the public sector with an average gross monthly salary of RM 7185.74. From the microsimulation process, the results show that 51% of households in Cluster 1 have adequate retirement wealth, while only 13% of households in Cluster 3 have adequate retirement wealth.
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Dauchot-Dehon, Michele, Mark Van Strydonck, and Jos Heylen. "Institut Royal du Patrimoine Artistique Radiocarbon Dates XI." Radiocarbon 28, no. 1 (1986): 69–77. http://dx.doi.org/10.1017/s003382220006001x.
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This list contains the results of 14C determinations obtained at the laboratory in 1984. Our laboratory measures 14C activity in the form of methane with a proportional counter built by Heidelberg University and an electronic unit built by Berthold, Benelux Analytical Instruments. The sample counting time is 4000 minutes with printouts at 100 minute intervals. Sample error is reported as one standard deviation. δ13C for mortar is measured by the University of Lyon Laboratory, δ13C was not measured or estimated for other samples.
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Leguay, Sébastien, Peter G. C. Campbell, and Claude Fortin. "Determination of the free-ion concentration of rare earth elements by an ion-exchange technique: implementation, evaluation and limits." Environmental Chemistry 13, no. 3 (2016): 478. http://dx.doi.org/10.1071/en15136.
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Environmental context The lanthanides are a group of heavy elements (from lanthanum to lutetium) increasingly used in many electronic consumer products and little is known about their environmental mobility and toxicity. In natural systems, these elements will bind to natural organic matter but metal toxicity is usually defined by the free metal ion concentration. Here, we propose a method based on sample equilibration with an ion-exchange resin to measure the free lanthanide ion concentration in the presence of natural organic matter. Abstract An ion-exchange technique that employs a polystyrene sulphonate ion-exchange resin was developed for determining environmentally relevant free-ion concentrations of Ce, Eu, La and Nd. Owing to the high affinity of rare earth elements (REE) for the selected resin, this method requires the addition of an inert salt to increase the concentration of the counter-ions (i.e. cations that are exchanged with REE bound to the resin). The use of a batch equilibration approach to calibrate the resin allowed the implementation of the ion-exchange technique at reasonably low ionic strength (I = 0.1M). Several ligands were used to test the selectivity of the method, which proved to be highly selective for the free metal ion in presence of the tested cationic and anionic complexes (REE–nitrate, REE–malic acid and REE–nitrilotriacetic acid systems) and operational for very low proportions of REE3+, owing to the strong REE–resin interactions. The ion-exchange technique was also implemented to determine [Eu]inorg in the presence of natural humic matter (Suwannee River Humic Acid) and the results were compared with those obtained using equilibrium dialysis and those calculated with chemical equilibrium models. At pH 4.00, the measured [Eu]inorg values were in fairly good agreement with those predicted with the Windermere Humic Aqueous Model and Stockholm Humic Model, whereas the Non-Ideal Competitive Absorption model appeared to underestimate the [Eu]inorg. However, the inorganic europium concentrations were strongly underestimated (4 < [Eu]inorg, IET/[Eu]inorg, calc < 18) with the three prediction models at higher pH (5.3 and 6.2).
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McLaughlin, Joseph Biagio, Giacomo Gallina, Fabrice Retière, et al. "Characterisation of SiPM Photon Emission in the Dark." Sensors 21, no. 17 (2021): 5947. http://dx.doi.org/10.3390/s21175947.
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In this paper, we report on the photon emission of Silicon Photomultipliers (SiPMs) from avalanche pulses generated in dark conditions, with the main objective of better understanding the associated systematics for next-generation, large area, SiPM-based physics experiments. A new apparatus for spectral and imaging analysis was developed at TRIUMF and used to measure the light emitted by the two SiPMs considered as photo-sensor candidates for the nEXO neutrinoless double-beta decay experiment: one Fondazione Bruno Kessler (FBK) VUV-HD Low Field (LF) Low After Pulse (Low AP) (VUV-HD3) SiPM and one Hamamatsu Photonics K.K. (HPK) VUV4 Multi-Pixel Photon Counter (MPPC). Spectral measurements of their light emissions were taken with varying over-voltage in the wavelength range of 450–1020 nm. For the FBK VUV-HD3, at an over-voltage of 12.1±1.0 V, we measured a secondary photon yield (number of photons (γ) emitted per charge carrier (e−)) of (4.04±0.02)×10−6γ/e−. The emission spectrum of the FBK VUV-HD3 contains an interference pattern consistent with thin-film interference. Additionally, emission microscopy images (EMMIs) of the FBK VUV-HD3 show a small number of highly localized regions with increased light intensity (hotspots) randomly distributed over the SiPM surface area. For the HPK VUV4 MPPC, at an over-voltage of 10.7±1.0 V, we measured a secondary photon yield of (8.71±0.04)×10−6γ/e−. In contrast to the FBK VUV-HD3, the emission spectra of the HPK VUV4 did not show an interference pattern—likely due to a thinner surface coating. The EMMIs of the HPK VUV4 also revealed a larger number of hotspots compared to the FBK VUV-HD3, especially in one of the corners of the device. The photon yield reported in this paper may be limited if compared with the one reported in previous studies due to the measurement wavelength range, which is only up to 1020 nm.
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Kowalski, Marcin, and Krzysztof Mierzejewski. "Detection of 3D face masks with thermal infrared imaging and deep learning techniques." Photonics Letters of Poland 13, no. 2 (2021): 22. http://dx.doi.org/10.4302/plp.v13i2.1091.
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Biometric systems are becoming more and more efficient due to increasing performance of algorithms. These systems are also vulnerable to various attacks. Presentation of falsified identity to a biometric sensor is one the most urgent challenges for the recent biometric recognition systems. Exploration of specific properties of thermal infrared seems to be a comprehensive solution for detecting face presentation attacks. This letter presents outcome of our study on detecting 3D face masks using thermal infrared imaging and deep learning techniques. We demonstrate results of a two-step neural network-featured method for detecting presentation attacks. Full Text: PDF ReferencesS.R. Arashloo, J. Kittler, W. Christmas, "Face Spoofing Detection Based on Multiple Descriptor Fusion Using Multiscale Dynamic Binarized Statistical Image Features", IEEE Trans. Inf. Forensics Secur. 10, 11 (2015). CrossRef A. Anjos, M.M. Chakka, S. Marcel, "Motion-based counter-measures to photo attacks inface recognition", IET Biometrics 3, 3 (2014). CrossRef M. Killioǧlu, M. Taşkiran, N. Kahraman, "Anti-spoofing in face recognition with liveness detection using pupil tracking", Proc. SAMI IEEE, (2017). CrossRef A. Asaduzzaman, A. Mummidi, M.F. Mridha, F.N. Sibai, "Improving facial recognition accuracy by applying liveness monitoring technique", Proc. ICAEE IEEE, (2015). CrossRef M. Kowalski, "A Study on Presentation Attack Detection in Thermal Infrared", Sensors 20, 14 (2020). CrossRef C. Galdi, et al, "PROTECT: Pervasive and useR fOcused biomeTrics bordEr projeCT - a case study", IET Biometrics 9, 6 (2020). CrossRef D.A. Socolinsky, A. Selinger, J. Neuheisel, "Face recognition with visible and thermal infrared imagery", Comput. Vis Image Underst. 91, 1-2 (2003) CrossRef L. Sun, W. Huang, M. Wu, "TIR/VIS Correlation for Liveness Detection in Face Recognition", Proc. CAIP, (2011). CrossRef J. Seo, I. Chung, "Face Liveness Detection Using Thermal Face-CNN with External Knowledge", Symmetry 2019, 11, 3 (2019). CrossRef A. George, Z. Mostaani, D Geissenbuhler, et al., "Biometric Face Presentation Attack Detection With Multi-Channel Convolutional Neural Network", IEEE Trans. Inf. Forensics Secur. 15, (2020). CrossRef S. Ren, K. He, R. Girshick, J. Sun, "Proceedings of IEEE Conference on Computer Vision and Pattern Recognition", Proc. CVPR IEEE 39, (2016). CrossRef K. He, X. Zhang, S. Ren, J. Sun, "Deep Residual Learning for Image Recognition", Proc. CVPR, (2016). CrossRef K. Mierzejewski, M. Mazurek, "A New Framework for Assessing Similarity Measure Impact on Classification Confidence Based on Probabilistic Record Linkage Model", Procedia Manufacturing 44, 245-252 (2020). CrossRef
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Günther, Christoph. "A Survey of Spoofing and Counter-Measures." Navigation 61, no. 3 (2014): 159–77. http://dx.doi.org/10.1002/navi.65.
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Maiano, Luca, Irene Amerini, Lorenzo Ricciardi Celsi, and Aris Anagnostopoulos. "Identification of Social-Media Platform of Videos through the Use of Shared Features." Journal of Imaging 7, no. 8 (2021): 140. http://dx.doi.org/10.3390/jimaging7080140.
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Videos have become a powerful tool for spreading illegal content such as military propaganda, revenge porn, or bullying through social networks. To counter these illegal activities, it has become essential to try new methods to verify the origin of videos from these platforms. However, collecting datasets large enough to train neural networks for this task has become difficult because of the privacy regulations that have been enacted in recent years. To mitigate this limitation, in this work we propose two different solutions based on transfer learning and multitask learning to determine whether a video has been uploaded from or downloaded to a specific social platform through the use of shared features with images trained on the same task. By transferring features from the shallowest to the deepest levels of the network from the image task to videos, we measure the amount of information shared between these two tasks. Then, we introduce a model based on multitask learning, which learns from both tasks simultaneously. The promising experimental results show, in particular, the effectiveness of the multitask approach. According to our knowledge, this is the first work that addresses the problem of social media platform identification of videos through the use of shared features.
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Song, Haifang, Mingqing Xiao, Lei Zhang, Jiyang Xiao, and Delong Feng. "Generic model of aircraft susceptibility to radar under conditions of electronic counter measures." IEEE Aerospace and Electronic Systems Magazine 31, no. 2 (2016): 16–24. http://dx.doi.org/10.1109/taes.2016.150044.
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Makhsous, Sepehr, Mukund Bharadwaj, Benjamin E. Atkinson, Igor V. Novosselov, and Alexander V. Mamishev. "DietSensor: Automatic Dietary Intake Measurement Using Mobile 3D Scanning Sensor for Diabetic Patients." Sensors 20, no. 12 (2020): 3380. http://dx.doi.org/10.3390/s20123380.
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Diabetes is a global epidemic that impacts millions of people every year. Enhanced dietary assessment techniques are critical for maintaining a healthy life for a diabetic patient. Moreover, hospitals must monitor their diabetic patients’ food intake to prescribe a certain amount of insulin. Malnutrition significantly increases patient mortality, the duration of the hospital stay, and, ultimately, medical costs. Currently, hospitals are not fully equipped to measure and track a patient’s nutritional intake, and the existing solutions require an extensive user input, which introduces a lot of human errors causing endocrinologists to overlook the measurement. This paper presents DietSensor, a wearable three-dimensional (3D) measurement system, which uses an over the counter 3D camera to assist the hospital personnel with measuring a patient’s nutritional intake. The structured environment of the hospital provides the opportunity to have access to the total nutritional data of any meal prepared in the kitchen as a cloud database. DietSensor uses the 3D scans and correlates them with the hospital kitchen database to calculate the exact consumed nutrition by the patient. The system was tested on twelve volunteers with no prior background or familiarity with the system. The overall calculated nutrition from the DietSensor phone application was compared with the outputs from the 24-h dietary recall (24HR) web application and MyFitnessPal phone application. The average absolute error on the collected data was 73%, 51%, and 33% for the 24HR, MyFitnessPal, and DietSensor systems, respectively.
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Mugarura, Norman. "Customer due diligence (CDD) mandate and the propensity of its application as a global AML paradigm." Journal of Money Laundering Control 17, no. 1 (2014): 76–95. http://dx.doi.org/10.1108/jmlc-07-2013-0024.
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Purpose – It has become customary for states or regulatory domains to come together and evolve normative regimes to deal with overlapping exigencies such as money laundering. Over the past two decades, there has been a proliferation of global AML laws designed to foster international cooperation against money laundering and its predicate crimes. In this same vein, some states have adopted domestic AML laws designed with an ethos of extra-territorial dimension as a caution against the threats posed by money laundering crimes. The paper aims to critically examine CDD to tease out the possibility of harnessing it as a global AML paradigm. Design/methodology/approach – The paper was written by critically examining primary and secondary data sources. In terms of primary data, the author has studied the relevant provision of different AML legislation such as BSA (1970), MLCA (1986), and PATRIOT (2001) Act in the USA; and FSMA (2000) and POCA (2002) in the UK. The author then evaluated these data in the context of the challenges of harnessing CDD across countries. In terms of secondary data sources, the author utilised data in academic text books, journal papers, electronic sources (web sites of AML agencies), and policy and research papers from specialist institutions such as FATF. Findings – The findings corroborate the thesis that much as CDD is an important AML measure, it needs to be streamlined and implemented with care to apply across the board. Research limitations/implications – The paper was written largely by way of library-based research. The author did not carry out interviews to corroborate some of the secondary data sources used in writing it. Carrying out interviews would have helped to minimise the potential for bias secondary data sources used was generated. Practical implications – It is anticipated that this paper can be utilised to foster desired strategic and policy changes at a multiple institutional levels. Originality/value – The paper is one of its kind to be written in its context. It will therefore make a viable contribution to the study of money counter-measures and how they are harnessed globally. It is therefore a must read!
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Chen, Shao-Hao, Yung-Chi Chuang, and Cheng-Chun Chang. "Development of a Portable All-Wavelength PPG Sensing Device for Robust Adaptive-Depth Measurement: A Spectrometer Approach with a Hydrostatic Measurement Example." Sensors 20, no. 22 (2020): 6556. http://dx.doi.org/10.3390/s20226556.
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Photoplethysmography (PPG), a noninvasive optical sensing technology, has been widely used to measure various physiological indices. Over-the-counter PPG devices are typically composed of a single-wavelength light source, namely, single-wavelength PPG (SW-PPG). It is known that signals of SW-PPG are easily contaminated or distorted by measurement conditions such as motion artifacts, wearing pressure, and skin type. Since lights of different wavelengths can penetrate skin tissues at different depths, how to effectively construct a multiwavelength PPG (MW-PPG) device or even an all-wavelength PPG (AW-PPG) device has attracted great attention. There is also a very interesting question, that is, what could be the potential benefits of using MW-PPG or AW-PPG devices? This paper demonstrates the construction of an AW-PPG portable device and conducts a preliminary evaluation. The presented device consists of four light-emitting diodes, a chip-scale spectrometer, a microcontroller, a Bluetooth Low Energy transceiver, and a phone app. The maximum ratio combining algorithm (MRC) is used to combine the PPG signals derived from different wavelengths to achieve a better signal-to-noise ratio (S/N). The PPG signals from the developed MRC-AW-PPG device versus those from the conventional SW-PPG device are compared in terms of different hydrostatic pressure conditions. It has been observed that the MRC-AW-PPG device can provide more stable PPG signals than that of a conventional PPG device. The results shine a light on the potential benefits of using multiple wavelengths for the next generation of noninvasive PPG sensing.
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Deng, Zhan, and Jianyu Wang. "A Novel Evidence Conflict Measurement for Multi-Sensor Data Fusion Based on the Evidence Distance and Evidence Angle." Sensors 20, no. 2 (2020): 381. http://dx.doi.org/10.3390/s20020381.
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As an important method for uncertainty modeling, Dempster–Shafer (DS) evidence theory has been widely used in practical applications. However, the results turned out to be almost counter-intuitive when fusing the different sources of highly conflicting evidence with Dempster’s combination rule. In previous researches, most of them were mainly dependent on the conflict measurement method between the evidence represented by the evidence distance. However, it is inaccurate to characterize the evidence conflict only through the evidence distance. To address this issue, we comprehensively consider the impacts of the evidence distance and evidence angle on conflicts in this paper, and propose a new method based on the mutual support degree between the evidence to characterize the evidence conflict. First, the Hellinger distance measurement method is proposed to measure the distance between the evidence, and the sine value of the Pignistic vector angle is used to characterize the angle between the evidence. The evidence distance indicates the dissimilarity between the evidence, and the evidence angle represents the inconsistency between the evidence. Next, two methods are combined to get a new method for measuring the mutual support degree between the evidence. Afterward, the weight of each evidence is determined by using the mutual support degree between the evidence. Then, the weights of each evidence are utilized to modify the original evidence to achieve the weighted average evidence. Finally, Dempster’s combination rule is used for fusion. Some numerical examples are given to illustrate the effectiveness and reasonability for the proposed method.
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Rainville, G., and Cheryl Lampkin. "ELECTRONIC USE AND SLEEP, SURPRISING BEDFELLOWS: RESTFULNESS EFFECTS OF ELECTRONICS USE PRIOR TO BEDTIME FOR THE 40-PLUS." Innovation in Aging 3, Supplement_1 (2019): S526. http://dx.doi.org/10.1093/geroni/igz038.1936.
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Abstract Getting restful sleep is essential to well-being but stress and poor sleep habits may make sleeping through the night challenging. This research explored life event stressors and pre-sleep activities among 2,464 randomly selected Americans age 40 and older (using Ipsos’ KnowledgeNetwork panel) to determine their joint effects on mental well-being. Respondents reported how often they engaged in twelve individual behaviors within an hour of going to sleep. These behaviors (found to be inter-correlated) were combined using EFA into four factors representing levels of engagement in each of four classes of pre-sleep activities: pre-sleep electronics use (e.g. texting/e-mail before bed), deep relaxation activities, reliance on sleep-aids, and “nightowl” behaviors (i.e., snacking). Counter to expectations, only electronics use had significant conditional effects on the path between a life events stressor index (a count of current, potentially stressful life events) and scores on the positively-framed Warwick Edinburgh well-being scale (WEMWBS). How often one sleeps through the night also had unexpected effects in a conditional path analysis. A somewhat-involved relationship emerges between each of the theoretically-relevant measures. First, the negative impact of stress is moderated by sleeping through the night. Sleeping through the night is, counter to previous studies on electronics use and sleep, mediated by the use of electronics prior to sleep. We propose that mechanisms (such as the nature of backlighting used in electronics) that hamper restfulness may be offset by relaxation effects or by setting one’s ducks in a row by texting/emailing before going to sleep.
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NAITOH, Haruo. "Drawbacks of and Counter Measures for Switched Reluctance Motors." Journal of The Institute of Electrical Engineers of Japan 128, no. 4 (2008): 227–30. http://dx.doi.org/10.1541/ieejjournal.128.227.
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Lachs, W. R. "Insecure System Reactive Power Balance Analysis and Counter Measures." IEEE Power Engineering Review PER-5, no. 9 (1985): 38. http://dx.doi.org/10.1109/mper.1985.5526445.
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Hamanaka, H., K. Hasegawa, and Y. Yamamoto. "POSITION-SENSITIVE X-RAY DETECTOR SYSTEM FOR HIGH RESOLUTION PIXE MEASUREMENTS." International Journal of PIXE 02, no. 03 (1992): 263–68. http://dx.doi.org/10.1142/s0129083592000270.
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A position-sensitive proportional counter with a carbon fiber anode, a goniometer and its associated electronics have been constructed to measure particle induced X-rays. The counter is easy to construct and its volume is about one order of magnitude smaller than a commercially available delay-line PSPC. This counter has good position linearity and uniform sensitivity distribution. Comparison is made between the new type of PSPC and an older one previously reported. It is shown that an enlargement of the X-ray window of the PSPC is effective for improving the detection efficiency.
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Tejedor, Sheri Chernetsky, Gina Garrett, Jesse T. Jacob, et al. "Electronic Documentation of Central Venous Catheter—Days: Validation Is Essential." Infection Control & Hospital Epidemiology 34, no. 9 (2013): 899–907. http://dx.doi.org/10.1017/s0195941700033695.
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Background.Measurement of central line-associated bloodstream infection (CLABSI) rates outside of intensive care units is challenged by the difficulty in reliably determining central venous catheter (CVC) use. The National Healthcare Safety Network (NHSN) allows for use of electronic data for determination of CVC-days, but validation of electronic data has not been studied systematically.Objective.To design and validate a process to reliably measure CVC-days outside of the intensive care units that leverages electronic documentation.Methods.Thirty-four inpatient wards at 2 academic hospitals using a common electronic platform for nursing documentation were studied. Electronic queries were created to capture patient and CVC information, and tools and processes for tracking and reporting errors in documentation were developed. Strategies to validate electronic data included comparisons with manual CVC-day determinations and automated data validation using customized tools. Interventions included redesign of documentation interface, real-time audit with feedback of errors, and education. The primary outcome was patient-level total error rate in electronic CVC-day measurement compared with manually counted CVC-days.Results.At baseline, there were a mean (± standard deviation) of 0.32 ± 0.25 electronic CVC-day errors (omission and commission errors summed and counted equally) per manually counted CVC-day. After several process improvement cycles over 7 months, the error rate decreased to <0.05 errors per CVC-day and remained at or below this level for 2 years.Conclusions.Baseline electronic CVC-day counts had a high error rate. Stepwise interventions reduced errors to consistently low levels. Validation of electronic calculation of CVC-days is essential to ensure accuracy, particularly if these data will be used for interinstitutional comparison.
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Lochs, W. R. "Insecure System Reactive Power Balance Analysis and Counter Measures." IEEE Transactions on Power Apparatus and Systems PAS-104, no. 9 (1985): 2413–19. http://dx.doi.org/10.1109/tpas.1985.318985.
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Willis, M. J. "Fade counter-measures applied to transmissions at 20/30 GHz." Electronics & Communications Engineering Journal 3, no. 2 (1991): 88. http://dx.doi.org/10.1049/ecej:19910016.
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Tejedor, Sheri Chernetsky, Gina Garrett, Jesse T. Jacob, et al. "Electronic Documentation of Central Venous Catheter—Days: Validation Is Essential." Infection Control & Hospital Epidemiology 34, no. 09 (2013): 899–907. http://dx.doi.org/10.1086/671736.
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Background.Measurement of central line-associated bloodstream infection (CLABSI) rates outside of intensive care units is challenged by the difficulty in reliably determining central venous catheter (CVC) use. The National Healthcare Safety Network (NHSN) allows for use of electronic data for determination of CVC-days, but validation of electronic data has not been studied systematically.Objective.To design and validate a process to reliably measure CVC-days outside of the intensive care units that leverages electronic documentation.Methods.Thirty-four inpatient wards at 2 academic hospitals using a common electronic platform for nursing documentation were studied. Electronic queries were created to capture patient and CVC information, and tools and processes for tracking and reporting errors in documentation were developed. Strategies to validate electronic data included comparisons with manual CVC-day determinations and automated data validation using customized tools. Interventions included redesign of documentation interface, real-time audit with feedback of errors, and education. The primary outcome was patient-level total error rate in electronic CVC-day measurement compared with manually counted CVC-days.Results.At baseline, there were a mean (± standard deviation) of 0.32 ± 0.25 electronic CVC-day errors (omission and commission errors summed and counted equally) per manually counted CVC-day. After several process improvement cycles over 7 months, the error rate decreased to &lt;0.05 errors per CVC-day and remained at or below this level for 2 years.Conclusions.Baseline electronic CVC-day counts had a high error rate. Stepwise interventions reduced errors to consistently low levels. Validation of electronic calculation of CVC-days is essential to ensure accuracy, particularly if these data will be used for interinstitutional comparison.
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Albert, Alain, and Maxime A. Crener. "Les nouvelles politiques industrielles : Le cas des télécommunications." Études internationales 14, no. 3 (2005): 453–67. http://dx.doi.org/10.7202/701539ar.
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After showing the dynamic character of the world market of telecommunications equipment, the authors analyze the main factors which have contributed to the elaboration of the industrial structure in this field. Particular stress is laid on the role played by technological evolution as driving force of the industrial reorganization which is taking place right now in the field. This reorganization movement on a world scale has sometimes given rise, in industrial policy, to totally different behaviours from governments. Thus, the strategies of the Japanese and French branches are countered by measures taken by the US Government to deregulate and liberalize the market. The authors conclude by pointing out that, given the limited means at its disposal and faced with an international market of electronics threatened by competition from the Newly Industrialized Countries, there is a need for Canada to adopt a differential strategic approach which will allow it to acceed to technological sovereignty and to counter the delocalisation process which profit the NIC of South-East Asia.
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SCHOEPF, Thomas J. "Counter-Measures for Relay Failures due to Dynamic Welding: A Robust Engineering Design." IEICE Transactions on Electronics E92-C, no. 5 (2009): 728–35. http://dx.doi.org/10.1587/transele.e92.c.728.
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Kryshevych, Olga, Igor Andrushchenko, Olexandr Striltsiv, Yuriy Pyvovar, and Olena Rivchachenko. "Modern methods of computer-related fraud: legal characteristics and qualification." Cuestiones Políticas 39, no. 68 (2021): 844–65. http://dx.doi.org/10.46398/cuestpol.3968.55.
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Due to the spread of new methods of committing fraudulent actions using electronic devices, the problem arose to provide you with adequate characteristics of criminal law for the development of measures leading to counteracting such crimes. The objective of the article was to identify common methods in Ukraine of committing fraud using computers, to assess the characteristics of criminal law that these crimes have, and, in turn, to determine measures to counter them. Methodologically, this is a documentary investigation. The scientific novelty of the study's findings was to identify methods of performing fraudulent actions using electronic computers that will improve the legal qualification of crimes and affect the prosecution of persons guilty of committing such illegal actions. Measures to prevent such criminal offences were also developed. The results of the study help improve the work of law enforcement agencies in Ukraine, in determining recurrent methods of committing fraudulent actions using electronic means and their proper qualification, providing an opportunity to prosecute those who commit such illegal actions and develop ways for cybercrime research and prevention in general.