Journal articles: 'Measurement monitoring'

1

Standing, J. R., and S. R. Buss. "Measurement and monitoring." Quarterly Journal of Engineering Geology and Hydrogeology 53, no. 3 (July 16, 2020): 349–51. http://dx.doi.org/10.1144/qjegh2020-119.

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Markuze, Yu I., Anh Cuong Le, Thi Thu Nguyen, and Hai Nam Dinh. "Monitoring coarse measurement errors and initial data." Geodesy and Cartography 937, no. 7 (August 20, 2018): 11–16. http://dx.doi.org/10.22389/0016-7126-2018-937-7-11-16.

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Rough errors are a consequence of the observer’s miscalculations, device malfunctions, their displacements at the time of measurement, incorrect measurement techniques chosen, rapid and sharp deterioration of external conditions and other causes. That is why, one of the problems in the theory of mathematical processing geodetic measurements is culling measurements containing gross errors. In the last two decades received recursion equalization has been widespread. It enables evaluating the unknown while new measurements are added to the network and measurements with gross errors are deleted [3, 4]. In the article, a complementary recurrent equalization is developed. It is original, convenient and recommended for wide application in production.

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Kapalo, Peter, Orest Voznyak, Vasyl Zhelykh, Hanna Klymenko, and Khrystyna Myroniuk. "AIR QUALITY MONITORING IN A SELECTED CLASSROOM." Theory and Building Practice 2022, no. 1 (June 20, 2022): 71–79. http://dx.doi.org/10.23939/jtbp2022.01.071.

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As part of the research entitled "Experimental determination of the optimal amount of air in a selected room in Ukraine based on measurements of carbon dioxide concentration", an experimental measurement was performed in a selected school room in Ukraine. The aim of the experimental measurement was to determine the course of air temperature, relative humidity and carbon dioxide concentration during the teaching process. From the carbon dioxide concentration curves, it is possible to calculate the required ventilation intensity in the room. This article documents the results of measuring the air temperature and the carbon dioxide concentration in the room, as well as the reactions of people in the room to the air quality.

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Hicks, J. M. "In situ monitoring." Clinical Chemistry 31, no. 12 (December 1, 1985): 1931–35. http://dx.doi.org/10.1093/clinchem/31.12.1931.

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Abstract In situ monitoring has been increasingly accepted during the past five years. This approach has been applied to measurement of gas tensions such as pO2 and pCO2, to pH and ions, to the assessment of jaundice by measurement of bilirubin, and to analysis for 14CO2 after administration of labeled antipyrine and aminopyrine, for evaluation of hepatic damage. Various techniques have been developed for in situ monitoring: transcutaneous measurements, implantable sensors, ingestible radio-sensitive pills, and breath analysis. Here I review some of these approaches and their limitations. These limitations include the sparsity of circumstances under which the technique can be applied and the probable increase in health-care costs.

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Makarov, G. N. "Three-alternative measurement monitoring." Measurement Techniques 33, no. 6 (June 1990): 530–33. http://dx.doi.org/10.1007/bf00977906.

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Shakher, Chandra. "OS01W0261 Opto-electronic techniques for measurement/monitoring of vibration." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2003.2 (2003): _OS01W0261. http://dx.doi.org/10.1299/jsmeatem.2003.2._os01w0261.

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Lima, Frederico, Almothana Albukhari, Rui Zhu, and Ulrich Mescheder. "Contactless Sleep Monitoring Measurement Setup." Proceedings 2, no. 13 (November 20, 2018): 1083. http://dx.doi.org/10.3390/proceedings2131083.

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In this work, a contactless measurement setup based on a low-cost weighing scale sensor is presented. The positioning of the sensor is a key point in our work with ballistocardiographic (BCG) measurements. This was demonstrated using a strain-gauge sensor placed at the head of the mattress to record the BCG signals, while an unsupervised machine learning algorithm was implemented to detect respiratory and cardiac cycles from patients laying in different postures. Comparison of BCG with electrocardiography (ECG) has shown the ability to detect, at least, 75% of every single heartbeat with the suggested setup and algorithm irrespective of patient’s postures.

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Holt, David W. "Monitoring mycophenolic acid." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 39, no. 3 (May 1, 2002): 173–83. http://dx.doi.org/10.1258/0004563021902035.

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The immunosuppressive agent mycophenolate mofetil is a prodrug for the active compound mycophenolic acid. Following organ transplantation, it is used mostly in combination with other immunosuppressive drugs, but it has also been used as primary therapy. Although in the pivotal clinical studies the drug was given in fixed doses, there has been substantial interest in the measurement of mycophenolic acid in plasma as a guide to optimizing therapy. Data have emerged which indicate that the metabolism of the compound is more complex than was originally thought and that variability in exposure to the drug, assessed by area under the time-concentration curve, is an important determinant of efficacy. This article highlights basic pharmacokinetic and pharmacodynamic data for mycophenolic acid, which underlie the rationale for its measurement. These data are then set in the context of providing a routine service for the measurement of the drug with either of the analytical techniques currently available - immunoassay or high performance liquid chromatography. There are a number of issues regarding the clinical interpretation of mycophenolic acid measurements which are yet to be resolved. Centres contemplating the introduction of such a service will need to keep abreast of a rapidly evolving literature.

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Michel, Chris, and Sina Keller. "Advancing Ground-Based Radar Processing for Bridge Infrastructure Monitoring." Sensors 21, no. 6 (March 20, 2021): 2172. http://dx.doi.org/10.3390/s21062172.

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In this study, we further develop the processing of ground-based interferometric radar measurements for the application of bridge monitoring. Applying ground-based radar in such complex setups or long measurement durations requires advanced processing steps to receive accurate measurements. These steps involve removing external influences from the measurement and evaluating the measurement uncertainty during processing. External influences include disturbances caused by objects moving through the signal, static clutter from additional scatterers, and changes in atmospheric properties. After removing these influences, the line-of-sight displacement vectors, measured by multiple ground-based radars, are decomposed into three-dimensional displacement components. The advanced processing steps are applied exemplarily on measurements with two sensors at a prestressed concrete bridge near Coburg (Germany). The external influences are successfully removed, and two components of the three-dimensional displacement vector are determined. A measurement uncertainty of less than 0.1 mm is achieved for the discussed application.

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Evans, Sue M., Peter A. Cameron, Paul Myles, Johannes Stoelwinder, and John J. McNeil. "Measurement, monitoring and clinical governance." Medical Journal of Australia 183, no. 10 (November 2005): 543. http://dx.doi.org/10.5694/j.1326-5377.2005.tb07162.x.

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Haag, Amanda. "Earth Monitoring: The crucial measurement." Nature 450, no. 7171 (December 2007): 785–86. http://dx.doi.org/10.1038/450785a.

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Chang, Tee-Chin, and Fah-Fatt Gan. "Monitoring linearity of measurement gauges." Journal of Statistical Computation and Simulation 76, no. 10 (October 2006): 889–911. http://dx.doi.org/10.1080/10629360500282171.

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Menzel, Tobias, and Wolfgang Potthast. "Validation of a Unique Boxing Monitoring System." Sensors 21, no. 21 (October 20, 2021): 6947. http://dx.doi.org/10.3390/s21216947.

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Much development work and scientific research has been conducted in recent years in the field of detecting human activity and the measurement of biomechanical performance parameters using portable sensor technologies, so-called wearable systems. Despite the fact that boxers participating in one of the most vigorous and complex disciplines of all sports, it is one of the disciplines where no noteworthy, advanced performance analytic tools are used for training or for competition purposes worldwide. This research aimed to develop and validate a comprehensive punch performance sensor system for the measurement and analysis of biomechanical parameters in the sport of boxing. A comprehensive validation study on linear regression was conducted following the development of the sensor system, between the gold standard of a Kistler force plate and Vicon motion capture system, to compare sensor-derived measurements with the gold standard-derived measurements. The developed sensor system demonstrated high accuracies ranging from R2 = 0.97 to R2 = 0.99 for punch force, acceleration, velocity and punch-time data. The validation experiments conducted demonstrated the significant accuracy of the sensor-derived measurements for predicting boxing-specific biomechanical movement parameters while punching in field use. Thus, this paper presents a unique sensor system for comprehensive measurements of biomechanical parameters using the developed mobile measurement system in the field of combat sports

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Abbasi, Saddam Akber. "Monitoring Analytical Measurements in Presence of Two Component Measurement Error." Журнал аналитической химии 69, no. 11 (2014): 1123–29. http://dx.doi.org/10.7868/s0044450214110127.

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Abbasi, Saddam Akber. "Monitoring analytical measurements in presence of two component measurement error." Journal of Analytical Chemistry 69, no. 11 (October 21, 2014): 1023–29. http://dx.doi.org/10.1134/s1061934814110100.

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Stoyanov, Stiliyan, and Zhivko Zhekov. "SATELLITE MONITORING." Journal Scientific and Applied Research 6, no. 1 (May 5, 2014): 5–34. http://dx.doi.org/10.46687/jsar.v6i1.135.

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n the current paper, satellite methods for research of gas content of the atmosphere are presented. The stress is on the satellite methods and the measurement geometry. A generalized characteristic of the absorption specters of the atmospheric ozone and gases into the optic range is presented when research with land and satellite appliances and apparatuses. An evaluation of the satellite methods is made when measuring the content of small gases. Scientific results are presented which are received by satellite experiments and the perspectives of satellite research are laid down.

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Naganuma, Yasukuni, Mikihito Kobayashi, and Takayuki Okumura. "355005 INERTIAL MEASUREMENT PROCESSING TECHNIQUES FOR TRACK CONDITION MONITORING ON SHINKANSEN COMMERCIAL TRAINS(Condition Monitoring,Technical Session)." Proceedings of International Symposium on Seed-up and Service Technology for Railway and Maglev Systems : STECH 2009 (2009): _355005–1_—_355005–6_. http://dx.doi.org/10.1299/jsmestech.2009._355005-1_.

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Brkic, Miodrag, Djordje Obradovic, Zorica Dudarin, Barta Károly, and Miloš B. Živanov. "Measurement and Monitoring System for Level of Groundwater." Key Engineering Materials 543 (March 2013): 243–46. http://dx.doi.org/10.4028/www.scientific.net/kem.543.243.

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In this paper, we present a system for measuring and monitoring of groundwater level. Level of groundwater is needed to create hydrodynamic models of inland excess water, which causes significant environmental and economic problem worldwide, because large parts of the flat terrain can be covered by inland excess water. On areas of interest, continuous measurement of groundwater level on several measurement points over long periods of time (several years) is needed as input data for hydrodynamic models. Measurements of groundwater level are made by acoustic system, which measure time of travel of sound to and from level of water inside wells. Every measurement point is equipped with GPRS transceiver, which sends data over GSM network to server connected to internet. Software on server collects and saves measured data in databases in adequate data format. Prototype of system is made, and hardware and software realization, communicating network and measurement results are presented.

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Müller, Sebastian Johannes, Elina Henkes, Matthew J. Gounis, Stephan Felber, Oliver Ganslandt, and Hans Henkes. "Non-Invasive Intracranial Pressure Monitoring." Journal of Clinical Medicine 12, no. 6 (March 13, 2023): 2209. http://dx.doi.org/10.3390/jcm12062209.

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(1) Background: Intracranial pressure (ICP) monitoring plays a key role in the treatment of patients in intensive care units, as well as during long-term surgeries and interventions. The gold standard is invasive measurement and monitoring via ventricular drainage or a parenchymal probe. In recent decades, numerous methods for non-invasive measurement have been evaluated but none have become established in routine clinical practice. The aim of this study was to reflect on the current state of research and shed light on relevant techniques for future clinical application. (2) Methods: We performed a PubMed search for “non-invasive AND ICP AND (measurement OR monitoring)” and identified 306 results. On the basis of these search results, we conducted an in-depth source analysis to identify additional methods. Studies were analyzed for design, patient type (e.g., infants, adults, and shunt patients), statistical evaluation (correlation, accuracy, and reliability), number of included measurements, and statistical assessment of accuracy and reliability. (3) Results: MRI-ICP and two-depth Doppler showed the most potential (and were the most complex methods). Tympanic membrane temperature, diffuse correlation spectroscopy, natural resonance frequency, and retinal vein approaches were also promising. (4) Conclusions: To date, no convincing evidence supports the use of a particular method for non-invasive intracranial pressure measurement. However, many new approaches are under development.

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Majcherczyk, Tadeusz, Zbigniew Niedbalski, and Artur Ulaszek. "Roadway Stability Evaluation on the Basis of Modern Monitoring of Displacement." Studia Geotechnica et Mechanica 37, no. 1 (March 1, 2015): 45–52. http://dx.doi.org/10.1515/sgem-2015-0006.

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Abstract The paper presents the application of a 3D laser measurement technology in a modern monitoring of roadways. The authors analyze the possibility of using a three-dimensional scanning measurement of longwall working dimensions. The measurement results are presented in the form of a cloud of points obtained from a 3D laser scanning. The paper also presents a comparison of the results obtained from the convergence of traditionally-made measurements with the measurements derived from the threedimensional scanning and discusses possible methods of comparing different point clouds.

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Landowska, Agnieszka. "Emotion Monitoring – Verification of Physiological Characteristics Measurement Procedures." Metrology and Measurement Systems 21, no. 4 (December 1, 2014): 719–32. http://dx.doi.org/10.2478/mms-2014-0049.

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Abstract This paper concerns measurement procedures on an emotion monitoring stand designed for tracking human emotions in the Human-Computer Interaction with physiological characteristics. The paper addresses the key problem of physiological measurements being disturbed by a motion typical for human-computer interaction such as keyboard typing or mouse movements. An original experiment is described, that aimed at practical evaluation of measurement procedures performed at the emotion monitoring stand constructed at GUT. Different locations of sensors were considered and evaluated for suitability and measurement precision in the Human- Computer Interaction monitoring. Alternative locations (ear lobes and forearms) for skin conductance, blood volume pulse and temperature sensors were proposed and verified. Alternative locations proved correlation with traditional locations as well as lower sensitiveness to movements like typing or mouse moving, therefore they can make a better solution for monitoring the Human-Computer Interaction.

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Man, Ping-Kwan, Kit-Leong Cheung, Nawapon Sangsiri, Wilfred Jin Shek, Kwan-Long Wong, Jing-Wei Chin, Tsz-Tai Chan, and Richard Hau-Yue So. "Blood Pressure Measurement: From Cuff-Based to Contactless Monitoring." Healthcare 10, no. 10 (October 21, 2022): 2113. http://dx.doi.org/10.3390/healthcare10102113.

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Blood pressure (BP) determines whether a person has hypertension and offers implications as to whether he or she could be affected by cardiovascular disease. Cuff-based sphygmomanometers have traditionally provided both accuracy and reliability, but they require bulky equipment and relevant skills to obtain precise measurements. BP measurement from photoplethysmography (PPG) signals has become a promising alternative for convenient and unobtrusive BP monitoring. Moreover, the recent developments in remote photoplethysmography (rPPG) algorithms have enabled new innovations for contactless BP measurement. This paper illustrates the evolution of BP measurement techniques from the biophysical theory, through the development of contact-based BP measurement from PPG signals, and to the modern innovations of contactless BP measurement from rPPG signals. We consolidate knowledge from a diverse background of academic research to highlight the importance of multi-feature analysis for improving measurement accuracy. We conclude with the ongoing challenges, opportunities, and possible future directions in this emerging field of research.

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Piccolo, Arianna, Yann Lecieux, Sylvie Lesoille, Pierre Teixeira, Johan Bertrand, and Dominique Leduc. "Performance Assessment of Distributed Strain Sensing Techniques for Convergence Monitoring of Radioactive Waste Repository." Sensors 23, no. 1 (December 30, 2022): 398. http://dx.doi.org/10.3390/s23010398.

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This paper presents the measurement methodology of diameter reduction monitoring of micro-tunnel structures used for radioactive waste storage based on distributed strain measurements along fiber optic sensors installed on the circumference. The whole measurement procedure is described: the calibration of the sensors for use in harsh environment (temperature and radioactivity), the measurement analysis technique, the performance assessment of different measurement systems on a surface mock-up and the in-situ validation on an underground structure. The performances of Brillouin and Rayleigh backscattering measurements are compared, as well as different fixation technologies. Distributed measurements are compared to alternative measurements: displacement sensors, Bragg grating extensometers and MEMS accelerometers. The distributed Rayleigh backscattering measurement performed on optical cables bonded to the surface of the structure appears to be the best solution for monitoring the convergence of micro-tunnels and offers comparable performance to alternative technologies tested on the surface demonstrator.

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Lüley, Jakub, Branislav Vrban, Štefan Čerba, Filip Osuský, and Vladimír Nečas. "Unmanned Radiation Monitoring System." EPJ Web of Conferences 225 (2020): 08008. http://dx.doi.org/10.1051/epjconf/202022508008.

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The absence of online radiation monitoring systems has been observed in the case of Fukushima nuclear accident. As the tsunami destroyed 23 of the 24 status monitoring points, almost no relevant radiation dose measurements data were available. A rapid deployment of a mobile radiological unit that can quickly determine the activity and direction of the radioactive cloud spread on the ground or in the air can prevent unnecessary deaths and related financial losses. Although the design of the current generation of NPPs incorporates features that minimize the risk of large radioactive releases outside the reactor, it is still important to focus on the development of systems that can mitigate the consequences of such events. In situations when the level of radiation does not permit the personal to perform the required measurements, online unmanned radiation monitoring systems may come to the play. For such a purpose the RMS-00x radiation monitoring system could be used, which is a modular system covering the functionality of dose rate measurement, air sampling and radiation map creation without requiring the human personnel to be present at the measurement site. The main purpose of the RMS-00x radiation monitoring system is the rapid deployment of unmanned monitoring devices to reduce the radiation burden on workers and on public. The system can be applied in the vicinity of a nuclear power plant (NPP) or at any location, where source of ionizing radiation could be present. Before this system is used in real conditions, its components must be thoroughly calibrated, based on certified measurement equipment and state-of-art simulation tools. This paper deals with the description of the RMS-00X sensor modules and demonstrates their functionality in combination with UAV. In addition, demonstration of the use of the developed technology was carried out as part of the regular emergency planning and preparedness of EBO NPP on 26th October 2017.

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Malinowski, Pawel, Tomasz Wandowski, and Wieslaw Ostachowicz. "Guided Waves for Aircraft Panel Monitoring." Key Engineering Materials 558 (June 2013): 107–15. http://dx.doi.org/10.4028/www.scientific.net/kem.558.107.

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The reported research concerns experimental investigation toward the monitoring of an aircraft panel. Guided wave propagation phenomena were used to obtain information about the state of the monitored structure. A curved aluminium panel with rivets was investigated. Piezoelectric transducer was used to excite guided waves in chosen structural element. The generated signal was amplified before applying it to the transducer in order to ensure measurable amplitude of excited guided waves. Measurement of the wave field was realized using laser scanning vibrometer that registered the velocity responses at a points belonging to a defined mesh. This contactless measurement technique allowed to investigate phenomena related to wave propagation in the aircraft panel. In the first stage, due to high complexity of the element, baseline measurements were taken. Next, a discontinuity (additional mass) was introduced on the panel surface and the measurements were repeated. Signal processing methods for features extraction from signals were proposed. These features were applied in order to detect and localize the presence anomalies in the investigated panel. The signal processing was conducted in MATLAB with the procedures developed by the authors. The used measurement technology (vibrometer) allowed to register whole wavefield of the propagating guided waves. This allowed to visualize the interaction of the waves with rivets. After introducing the discontinuity on the panel surface wave interaction with it was investigated. Two positions of the additional mass were considered. One just before the riveted stiffener and second after the stiffener. Because of this the influence of the stiffener on the damage detection abilities could be investigated. It can be concluded that the guided wave can be used for monitoring of such complex structures. The vibrometer measurements allowed learn about the guided wave propagation phenomena and perform successful damage localization.

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Rantatalo, Matti, Praneeth Chandran, Florian Thiery, Johan Odelius, Christian Gustafsson, Mathias Asplund, and Uday Kumar. "Evaluation of Measurement Strategy for Track Side Monitoring of Railway Wheels." Applied Sciences 13, no. 9 (April 25, 2023): 5382. http://dx.doi.org/10.3390/app13095382.

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Wheelsets form an indispensable part of the railway rolling stock and need to be periodically inspected to ensure stable, safe, reliable, and sustainable rail operation. Wheel profiles are usually inspected and measured in a workshop environment using handheld equipment or by utilizing wayside measuring equipment. A common practice for both methods is to measure the wheel profile at one position along the circumference of the wheel, resulting in a one-slice measurement strategy, based on the assumption that the wheel profile has the same shape independent of the measurement position along the wheel. In this article, the representability of a one-slice measurement strategy with respect to the wheel profile parameters is investigated using handheld measurement equipment. The calculated range of standard deviation of the parameters estimated such as flange height, flange width, flange slope, and hollow wear from the measurements shows a spread in the parameter value along the circumference of the wheel. As an initial validation of the results, measurements from the wayside monitoring systems were also investigated to see if a similar spread was visible. The spread was significantly higher for flange height, flange width, and flange slope estimated from wayside measurement equipment than for the same parameters estimated using the handheld measurement equipment.

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Vargas, M., A. Guisasola, J. Lafuente, C. Casas, and J. A. Baeza. "On-line titrimetric monitoring of anaerobic–anoxic EBPR processes." Water Science and Technology 57, no. 8 (April 1, 2008): 1149–54. http://dx.doi.org/10.2166/wst.2008.140.

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Denitrifying phosphorus accumulating organisms (DPAO) are able to remove nitrogen and phosphorus simultaneously. The use of DPAO in EBPR systems results in a substantial saving on aeration cost and a lower sludge production when compared to anaerobic–aerobic EBPR systems. This process is usually studied in sequencing batch reactors (SBR) and monitored with off-line measurements. However, off-line monitoring implies low frequency data sampling and delay between sampling and obtainment of the results. For this reason, an online measurement such as titrimetry is strongly recommended to improve the daily management of the lab-scale SBR. This paper shows different applications of titrimetric measurements for on-line monitoring of DPAO lab-scale SBR cycles. The results demonstrate that titrimetry is a suitable tool for detecting the end of phosphorus release and carbon substrate depletion point in the anaerobic phase. Moreover, this paper proposes the indirect measurement of nitrate/nitrite uptake rate with titrimetric measurements, which allows the on-line estimation of its concentration during the anoxic phase. Therefore, titrimetry is an on-line measurement with a high potential to implement new control strategies in DPAO lab-scale SBR systems.

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Yucha, Carolyn B. "Ambulatory Blood Pressure Monitoring: Measurement Implications for Research." Journal of Nursing Measurement 9, no. 1 (May 2001): 49–59. http://dx.doi.org/10.1891/1061-3749.9.1.49.

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Although blood pressure (BP) is a frequently used variable in nursing studies, measurements are likely to be inaccurate for a variety of reasons: incorrect technique, operator error, and environmental factors. Ambulatory BP monitoring (ABPM) reduces measurement error, is relatively easy to use, and yields many more BP parameters than do clinic BP measurements. The cost of equipment for ABPM ranges from $2,500 to $5,000 per monitor and from $2,000 to $3,000 for computer software. A research assistant can easily be trained to follow a standardized procedure. Researchers have used ABPM to study normal BP patterns, complications of hypertension, effects of antihypertensive drugs, and the prognosis of cardiovascular events. This article provides the nurse researcher with an introduction to this technology and an overview of information gained from ambulatory blood pressure monitoring.

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Moore, C., A. Barnard, P. Fietzek, M. R. Lewis, H. M. Sosik, S. White, and O. Zielinski. "Optical tools for ocean monitoring and research." Ocean Science 5, no. 4 (December 10, 2009): 661–84. http://dx.doi.org/10.5194/os-5-661-2009.

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Abstract. Requirements for understanding the relationships between ocean color and suspended and dissolved materials within the water column, and a rapidly emerging photonics and materials technology base for performing optical based analytical techniques have generated a diverse offering of commercial sensors and research prototypes that perform optical measurements in water. Through inversion, these tools are now being used to determine a diverse set of related biogeochemical and physical parameters. Techniques engaged include measurement of the solar radiance distribution, absorption, scattering, stimulated fluorescence, flow cytometry, and various spectroscopy methods. Selective membranes and other techniques for material isolation further enhance specificity, leading to sensors for measurement of dissolved oxygen, methane, carbon dioxide, common nutrients and a variety of other parameters. Scientists are using these measurements to infer information related to an increasing set of parameters and wide range of applications over relevant scales in space and time.

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Moore, C., A. Barnard, P. Fietzek, M. R. Lewis, H. M. Sosik, S. White, and O. Zielinski. "Optical tools for ocean monitoring and research." Ocean Science Discussions 5, no. 4 (November 27, 2008): 659–717. http://dx.doi.org/10.5194/osd-5-659-2008.

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Abstract. Requirements for understanding the relationships between ocean color and suspended and dissolved materials within the water column, and a rapidly emerging photonics and materials technology base for performing optical based analytical techniques have generated a diverse offering of commercial sensors and research prototypes that perform optical measurements in water. Through inversion, these tools are now being used to determine a diverse set of related biogeochemical and physical parameters. Techniques engaged include measurement of the solar radiance distribution, absorption, scattering, stimulated fluorescence, flow cytometry, and various spectroscopy methods. Selective membranes and other techniques for material isolation further enhance specificity, leading to sensors for measurement of dissolved oxygen, methane, carbon dioxide, common nutrients and a variety of other parameters. Scientists are using these measurements to infer information related to an increasing set of parameters and wide range of applications over relevant scales in space and time.

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Koehler, Almuth M., and Howard I. Maibach. "Electronic Monitoring in Medication Adherence Measurement." American Journal of Clinical Dermatology 2, no. 1 (2001): 7–12. http://dx.doi.org/10.2165/00128071-200102010-00002.

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Beek, Johan F., Henricus J. C. M. Sterenborg, and Martin J. C. van Gemert. "Continuous pneumothorax monitoring by remittance measurement." Applied Optics 32, no. 4 (February 1, 1993): 454. http://dx.doi.org/10.1364/ao.32.000454.

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Ferré, Ty P. A., and Gerard J. Kluitenberg. "Advances in Measurement and Monitoring Methods." Vadose Zone Journal 2, no. 4 (2003): 443. http://dx.doi.org/10.2136/vzj2003.0443.

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Engbæk, J. "Measurement and monitoring of neuromuscular transmission." Current Opinion in Anaesthesiology 3, no. 4 (August 1990): 625–29. http://dx.doi.org/10.1097/00001503-199003040-00022.

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Engbæk, J. "Measurement and monitoring of neuromuscular transmission." Current Opinion in Anaesthesiology 3, no. 4 (August 1990): 625–29. http://dx.doi.org/10.1097/00001503-199008000-00022.

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Andrews, Gavin, and Andrew C. Page. "Outcome Measurement, Outcome Management and Monitoring." Australian & New Zealand Journal of Psychiatry 39, no. 8 (August 2005): 649–51. http://dx.doi.org/10.1080/j.1440-1614.2005.01648.x.

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Kopman, Aaron F. "Measurement and monitoring of neuromuscular blockade." Current Opinion in Anaesthesiology 15, no. 4 (August 2002): 415–20. http://dx.doi.org/10.1097/00001503-200208000-00002.

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Hata, Yutaka, Tetsuya Fujisawa, Naotake Kamiura, Tadahito Egawa, and Kazuhiko Taniguchi. "Gas Consumption Measurement by Camera Monitoring." Transactions of the Institute of Systems, Control and Information Engineers 29, no. 9 (2016): 401–7. http://dx.doi.org/10.5687/iscie.29.401.

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Gerhardt, Tilo O., and Eduardo Bancalari. "Measurement and Monitoring of Pulmonary Function." Clinics in Perinatology 18, no. 3 (September 1991): 581–609. http://dx.doi.org/10.1016/s0095-5108(18)30514-1.

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Ballard, R. L. "Methods of inventory monitoring and measurement." Logistics Information Management 9, no. 3 (June 1996): 11–18. http://dx.doi.org/10.1108/09576059610116653.

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Brigham, Frederick J., Sheri Berkeley, and Erin Walker. "Navigating the Measurement and Monitoring Maze." Exceptionality 20, no. 3 (July 19, 2012): 133–42. http://dx.doi.org/10.1080/09362835.2012.669298.

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Cronin-Hennessy, D., A. Beretvas, and P. F. Derwent. "Luminosity monitoring and measurement at CDF." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 443, no. 1 (March 2000): 37–50. http://dx.doi.org/10.1016/s0168-9002(99)01172-9.

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Qi, G. Z., Guo Xun, Qi Xiaozhai, W. Dong, and P. Chang. "Local measurement for structural health monitoring." Earthquake Engineering and Engineering Vibration 4, no. 1 (June 2005): 165–72. http://dx.doi.org/10.1007/s11803-005-0034-7.

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Scruby, C. B., M. J. Beesley, K. A. Stacey, and D. J. Buttle. "Continuous monitoring by acoustic emission measurement." NDT & E International 25, no. 6 (December 1992): 295. http://dx.doi.org/10.1016/0963-8695(92)90693-b.

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Kwon, Kye-Si. "Inkjet status monitoring using meniscus measurement." NIP & Digital Fabrication Conference 24, no. 1 (January 1, 2008): 134–37. http://dx.doi.org/10.2352/issn.2169-4451.2008.24.1.art00034_1.

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Quaal, Susan J. "Quality Assurance in Hemodynamic Monitoring." AACN Advanced Critical Care 4, no. 1 (February 1, 1993): 197–206. http://dx.doi.org/10.4037/15597768-1993-1015.

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Patient care management decisions frequently are based, at least in part, on hemodynamic indices. Accuracy in repeated measurement of hemodynamic parameters is therefore critical. It can be achieved only through a program of quality assurance (QA), which should include the following factors: static, dynamic, and validation of pulmonary artery wedge pressure (PAWP). The static QA factor consists of establishing an accurate reference point from which all subsequent measurements are made. The hemodynamic monitoring system must be able to transmit pulsating physiologic pressures to the transducer with high fidelity, which is validated via the dynamic response or “square wave” test and damping coefficient. Other QA aspects that arc used to validate the accuracy of PAWP include catheter placement into lung zone 3 capillary and comparison of capillary to arterial blood gases. Measurement error also can be introduced because of varying methods to quantify the analog pressure waveforms, such as end-expiratory or pressure averaging techniques. This paper explores each of these domains within a framework of quality assurance

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Gregori, Amedeo, Emidio Di Giampaolo, Alessandro Di Carlofelice, and Chiara Castoro. "Presenting a New Wireless Strain Method for Structural Monitoring: Experimental Validation." Journal of Sensors 2019 (November 3, 2019): 1–12. http://dx.doi.org/10.1155/2019/5370838.

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The structural health monitoring (SHM) of large and complex infrastructures as well as laboratory tests of new structures and materials resorts to strain gauge measurements to check mechanical stress. A wireless measurement of the strain gauge response is desirable in many practical applications to avoid the cost and the difficulty of wiring, particularly in large structures requiring several sensors and in complex objects where the measurement points are difficult to access. In this paper, a wireless strain gauge which is a hybrid between an RFID tag and a usual thin-film resistive strain gauge is experimented. Installation and maintenance problems of the wireless sensor networks are overcome allowing a high level of measurement accuracy, comparable to that of wired strain sensors, together with a long measurement distance. A large set of measurements has been performed using reference specimens and readings in order to validate the sensor and to develop a calibration procedure that makes the sensor suitable for a large number of different applications in civil engineering.

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Thakre, Mohan, Akbar Ahmad, and Kishor Bhadane. "Measurement Class Phasor Measurement Unit Compliance for Electrical Grid Monitoring." MAPAN 37, no. 1 (October 11, 2021): 125–35. http://dx.doi.org/10.1007/s12647-021-00440-6.

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Blanco, A., E. Fuente, C. Negro, and J. Tijero. "Flocculation Monitoring: Focused Beam Reflectance Measurement as a Measurement Tool." Canadian Journal of Chemical Engineering 80, no. 4 (May 19, 2008): 1–7. http://dx.doi.org/10.1002/cjce.5450800403.

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Coker, S. A., S. J. Oh, and Y. C. Shin. "In-Process Monitoring of Surface Roughness Utilizing Ultrasound." Journal of Manufacturing Science and Engineering 120, no. 1 (February 1, 1998): 197–200. http://dx.doi.org/10.1115/1.2830101.

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This paper presents the capability of an ultrasonic system for the in-process surface roughness measurement of machined parts. The system uses a focused ultrasonic transducer to measure the reflected amplitude variation of an ultrasonic beam incident on the surface. The robustness of the system is examined by applying the technique to different machined surfaces and investigating the effect of various coupling fluids. Experimental results show that the technique is applicable to the surfaces produced by most production processes. In addition, the capability of in-process measurements is demonstrated by adapting the system to a CNC machining center. Results show in-process measurements correlate well with off-line profilometer data. Tolerance to machine vibration is also shown by comparing the measurement data with the machine spindle on and off.

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Journal articles on the topic 'Measurement monitoring'

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