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Artículos de revistas sobre el tema "Performance Measurement Protocols"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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1

Peyrard, Fabrice. "Real-time performance evaluation of Bluetooth ARQ protocol." Journal of Communications Software and Systems 3, no. 4 (2007): 248. http://dx.doi.org/10.24138/jcomss.v3i4.246.

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These research tasks present a measurement platform of Bluetooth asynchronous links in order to get the intrinsic time constraints of this network and communications protocols. These time measurements are necessary for the application we wish to implement for mobile robot control through Bluetooth link communication. We present the platform as well as the measurement protocol which we have carried out from real-time communicating operating systems. We have developed an application of radio and time data processing allowing a real-time evaluation of the global behavior of the communicating syst
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2

McMorrow, Gabrielle, and Liping Wang. "Implementation and evaluation of ASHRAE’s acoustic Performance Measurement Protocols." Science and Technology for the Built Environment 25, no. 4 (2019): 421–37. http://dx.doi.org/10.1080/23744731.2018.1550304.

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3

Persaud, D. David, and Lawrence Nestman. "Opening up the Black Box of Performance Measurement." Healthcare Management Forum 15, no. 4 (2002): 29–31. http://dx.doi.org/10.1016/s0840-4704(10)60034-8.

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Health outcomes measurement has not fulfilled its potential. An important reason is the inability of the systems in place to properly utilize the information provided by outcome indicators to improve care. This paper describes a measurement framework that empowers healthcare professionals to act on information that is provided by using logical predetermined protocols. The benefits of this framework include enhanced evidence-based healthcare processes, organizational learning through knowledge generation and dissemination, and improved health outcomes.
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4

Kim, Hyojin, and Jeff Haberl. "Field-test of the ASHRAE/CIBSE/USGBC performance measurement protocols: Part I intermediate level energy protocols." Science and Technology for the Built Environment 24, no. 3 (2017): 281–97. http://dx.doi.org/10.1080/23744731.2017.1368836.

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5

Kim, Hyojin, and Jeff Haberl. "Field-test of the ASHRAE/CIBSE/USGBC performance measurement protocols: Part II advanced level energy protocols." Science and Technology for the Built Environment 24, no. 3 (2017): 298–315. http://dx.doi.org/10.1080/23744731.2017.1368837.

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6

Hartawan, I. Nyoman Buda, and I. Gusti Made Ngurah Desnanjaya. "ANALISIS KINERJA PROTOKOL ZIGBEE DI DALAM DAN DI LUAR RUANGAN SEBAGAI MEDIA KOMUNIKASI DATA PADA WIRELESS SENSOR NETWORK." Jurnal RESISTOR (Rekayasa Sistem Komputer) 1, no. 2 (2018): 65–72. http://dx.doi.org/10.31598/jurnalresistor.v1i2.320.

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Wireless sensor network is a technology used in supporting monitoring activities both inside and outside environment. Data communication on wireless sensor networks is done wirelessly. The Zigbee protocol is one of the protocols used in data communication on wireless sensor networks as an implementation of XBEE devices. In this study measurement of Zigbee protocol performance on XBEE devices inside and outside environment. The measurement conditions in the room are limited by the wall partition, while the outdoor conditions are line of sight. Measurements were made by sending packet data using
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7

Hasan, Mohammad Kamrul, Shayla Islam, Muhammad Shafiq, et al. "Communication Delay Modeling for Wide Area Measurement System in Smart Grid Internet of Things Networks." Wireless Communications and Mobile Computing 2021 (July 13, 2021): 1–10. http://dx.doi.org/10.1155/2021/9958003.

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We present communication frameworks, models, and protocols of smart grid Internet of Things (IoT) networks based on the IEEE and IEC standards. The measurement, control, and monitoring of grid being achieved through phasor measurement unit (PMU) based wide area measurement (WAM) framework. The WAM framework applied the IEEE standard C37.118 phasor exchange protocol to collect grid data from various substation devices. The existing frameworks include the IEC 61850 protocol and programmable logic controllers (PLCs) based supervisory control and data acquisition (SCADA) system. These protocols ha
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8

S. Patil, Kasturi. "Design and development of C3 protocol for performance measurement of wireless sensor network." International Journal of Engineering & Technology 7, no. 2.31 (2018): 63. http://dx.doi.org/10.14419/ijet.v7i2.31.13398.

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In twenty-first century, technology changes tremendously. A wireless sensor network is bunch of sundry sensor nodes where, nodes are distributed arbitrarily. Sensor consumes most of its energy in data transmission and reception. System ascertained different amended protocols for performance quantification of WSN. Sensing node sense environment but doesn’t transmit or receive the data. Slumber nodes neither sense environment nor transmit or receive data. Proposed system validate the analytical models utilizing extensive simulations incorporating experimental results on the substratum of differe
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9

Luther, Mark E., Guy Meadows, Earle Buckley, Sherryl A. Gilbert, Heidi Purcell, and Mario N. Tamburri. "Verification of Wave Measurement Systems." Marine Technology Society Journal 47, no. 5 (2013): 104–16. http://dx.doi.org/10.4031/mtsj.47.5.11.

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AbstractGiven the societal importance of reliable and accurate ocean observations, the wave monitoring community (including academic researchers, agency scientists, resource managers, and representatives from wave instrument manufacturers) came together to develop a set of protocols for the test and evaluation of wave measurement systems in support of the 2009 National Operational Wave Observation Plan. These protocols are focused on a wide range of wave measurement instruments and their respective performance in successfully recovering the “First-5” Fourier components of the incident wave fie
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10

Barkouk, Hamid, El Mokhtar En-Naimi, and Aziz Mahboub. "Performance evaluation of hierarchical clustering protocols with fuzzy C-means." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 4 (2021): 3212. http://dx.doi.org/10.11591/ijece.v11i4.pp3212-3221.

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The longevity of the network and the lack of resources are the main problems within the WSN. Minimizing energy dissipation and optimizing the lifespan of the WSN network are real challenges in the design of WSN routing protocols. Load balanced clustering increases the reliability of the system and enhances coordination between different nodes within the network. WSN is one of the main technologies dedicated to the detection, sensing, and monitoring of physical phenomena of the environment. For illustration, detection, and measurement of vibration, pressure, temperature, and sound. The WSN can
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11

Loschmidt, Patrick, Reinhard Exel, and Georg Gaderer. "Highly Accurate Timestamping for Ethernet-Based Clock Synchronization." Journal of Computer Networks and Communications 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/152071.

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It is not only for test and measurement of great importance to synchronize clocks of networked devices to timely coordinate data acquisition. In this context the seek for high accuracy in Ethernet-based clock synchronization has been significantly supported by enhancements to the Network Time Protocol (NTP) and the introduction of the Precision Time Protocol (PTP). The latter was even applied to instrumentation and measurement applications through the introduction of LXI. These protocols are usually implemented in software; however, the synchronization accuracy can only substantially be improv
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12

Assad, Syed M., Mark Bradshaw, and Ping Koy Lam. "Phase estimation of coherent states with a noiseless linear amplifier." International Journal of Quantum Information 15, no. 01 (2017): 1750009. http://dx.doi.org/10.1142/s0219749917500095.

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Amplification of quantum states is inevitably accompanied with the introduction of noise at the output. For protocols that are probabilistic with heralded success, noiseless linear amplification in theory may still be possible. When the protocol is successful, it can lead to an output that is a noiselessly amplified copy of the input. When the protocol is unsuccessful, the output state is degraded and is usually discarded. Probabilistic protocols may improve the performance of some quantum information protocols, but not for metrology if the whole statistics is taken into consideration. We calc
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13

Kwakkel, G., EEH Van Wegen, JH Burridge, et al. "Standardized measurement of quality of upper limb movement after stroke: Consensus-based core recommendations from the Second Stroke Recovery and Rehabilitation Roundtable." International Journal of Stroke 14, no. 8 (2019): 783–91. http://dx.doi.org/10.1177/1747493019873519.

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The second Stroke Recovery and Rehabilitation Roundtable “metrics” task force developed consensus around the recognized need to add kinematic and kinetic movement quantification to its core recommendations for standardized measurements of sensorimotor recovery in stroke trials. Specifically, we focused on measurement of the quality of upper limb movement. We agreed that the recommended protocols for measurement should be conceptually rigorous, reliable, valid and responsive to change. The recommended measurement protocols include four performance assays (i.e. 2D planar reaching, finger individ
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14

Kwakkel, G., E. E. H. van Wegen, J. H. Burridge, et al. "Standardized Measurement of Quality of Upper Limb Movement After Stroke: Consensus-Based Core Recommendations From the Second Stroke Recovery and Rehabilitation Roundtable." Neurorehabilitation and Neural Repair 33, no. 11 (2019): 951–58. http://dx.doi.org/10.1177/1545968319886477.

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The second Stroke Recovery and Rehabilitation Roundtable “metrics” task force developed consensus around the recognized need to add kinematic and kinetic movement quantification to its core recommendations for standardized measurements of sensorimotor recovery in stroke trials. Specifically, we focused on measurement of the quality of upper limb movement. We agreed that the recommended protocols for measurement should be conceptually rigorous, reliable, valid and responsive to change. The recommended measurement protocols include four performance assays (i.e. 2D planar reaching, finger individ
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15

Larribau, Robert, Victor Nathan Chappuis, Philippe Cottet, et al. "Symptom-Based Dispatching in an Emergency Medical Communication Centre: Sensitivity, Specificity, and the Area under the ROC Curve." International Journal of Environmental Research and Public Health 17, no. 21 (2020): 8254. http://dx.doi.org/10.3390/ijerph17218254.

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Background: Measuring the performance of emergency medical dispatch tools used in paramedic-staffed emergency medical communication centres (EMCCs) is rarely performed. The objectives of our study were, therefore, to measure the performance and accuracy of Geneva’s dispatch system based on symptom assessment, in particular, the performance of ambulance dispatching with lights and sirens (L&S) and to measure the effect of adding specific protocols for each symptom. Methods: We performed a prospective observational study including all emergency calls received at Geneva’s EMCC (Switzerland) f
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16

Wu, Yixin, Suman Kumar, and Seung-Jong Park. "Measurement and performance issues of transport protocols over 10Gbps high-speed optical networks." Computer Networks 54, no. 3 (2010): 475–88. http://dx.doi.org/10.1016/j.comnet.2009.09.017.

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17

Pak, Wooguil. "Ultra-low-power media access control protocol based on clock drift characteristics in wireless sensor networks." International Journal of Distributed Sensor Networks 13, no. 7 (2017): 155014771772215. http://dx.doi.org/10.1177/1550147717722155.

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Many researchers have analyzed sources of uncertainty in synchronization protocols for wireless sensor networks. However, very few researchers perform this work in depth, and failed to discover comprehensive characteristics since they worked with only one or two measurement intervals. To overcome this problem, extensive measurements were conducted and analyzed to find the characteristics of the sources according to various measurement intervals. Using the characteristics, a new media access control protocol, WideMAC, was designed to support a wide range of duty cycles for various applications.
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18

Jin, Dong, Cheng Rui Zhang, Tian Liang Hu, and Ming Jiang Hou. "Dual-Channel Measurement System for Real-Time Ethernet." Applied Mechanics and Materials 419 (October 2013): 602–8. http://dx.doi.org/10.4028/www.scientific.net/amm.419.602.

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Real-time Ethernet (RTE) is widely used in industrial automation and high performance motion control field. Its minimum cycle time is down to less than 100μs and cycle jitter is less than 1μs, making many existing network and protocol analyzers cant meet the requirements of time accuracy in measurement system for RTE. In this paper, a low-cost and open measurement system is proposed to analyze the time characteristics (cycle time, cycle jitter, end-to-end delay, etc.) and protocol (Ethernet type, length, detailed info, etc.) of real-time Ethernet. The measurement system is consisting of a FPGA
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19

Higgins, Brendon L., Jean-Philippe Bourgoin, and Thomas Jennewein. "Numeric estimation of resource requirements for a practical polarization-frame alignment scheme for quantum key distribution (QKD)." Advanced Optical Technologies 9, no. 5 (2020): 253–61. http://dx.doi.org/10.1515/aot-2020-0016.

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AbstractOwing to physical orientations and birefringence effects, practical quantum information protocols utilizing optical polarization need to handle misalignment between preparation and measurement reference frames. For any such capable system, an important question is how many resources – for example, measured single photons – are needed to reliably achieve alignment precision sufficient for the desired quantum protocol. Here, we study the performance of a polarization-frame alignment scheme used in prior laboratory and field quantum key distribution (QKD) experiments by performing Monte C
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20

Stewart, Kent W., Christopher G. Pretty, Geoffrey M. Shaw, and J. Geoffrey Chase. "Interpretation of Retrospective BG Measurements." Journal of Diabetes Science and Technology 12, no. 5 (2018): 967–75. http://dx.doi.org/10.1177/1932296818786518.

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Background: This study investigates blood glucose (BG) measurement interpolation techniques to represent intermediate BG dynamics, and the effect resampling of retrospective BG data has on key glycemic control (GC) performance results. GC protocols in the ICU have varying BG measurement intervals ranging from 0.5 to 4 hours. Sparse data pose problems, particularly in comparing GC performance or model fitting, and thus interpolation is required. Methods: Retrospective data from SPRINT in Christchurch Hospital Intensive Care Unit (ICU) (2005-2007) were used to analyze several interpolation techn
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21

Golik-Peric, Dragana, Miodrag Drapsin, Borislav Obradovic, and Patrik Drid. "Short-Term Isokinetic Training Versus Isotonic Training: Effects on Asymmetry in Strength of Thigh Muscles." Journal of Human Kinetics 30, no. 1 (2011): 29–35. http://dx.doi.org/10.2478/v10078-011-0070-5.

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Short-Term Isokinetic Training Versus Isotonic Training: Effects on Asymmetry in Strength of Thigh MusclesThe aim of this study was to investigate the effects of two training protocols on the isokinetic performance of athletes. The study was conducted in 38 athletes, (age 23.3 ± 3.6 years) participating in national level leagues of different sports, whose initial concentric hamstrings-to-quadriceps (conH/Q) torque ratio was lower than 0.5. During seasonal testing, an isokinetic measurement of knee extensors and flexors was performed at 60º/s. The athletes were divided into two groups. Nineteen
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22

Huang, Luyu, Yichen Zhang, Ziyang Chen, and Song Yu. "Unidimensional Continuous-Variable Quantum Key Distribution with Untrusted Detection under Realistic Conditions." Entropy 21, no. 11 (2019): 1100. http://dx.doi.org/10.3390/e21111100.

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A unidimensional continuous-variable quantum key distribution protocol with untrusted detection is proposed, where the two legitimate partners send unidimensional modulated or Gaussian-modulated coherent states to an untrusted third party, i.e., Charlie, to realize the measurement. Compared with the Gaussian-modulated coherent-state protocols, the unidimensional modulated protocols take the advantage of easy modulation, low cost, and only a small number of random numbers required. Security analysis shows that the proposed protocol cannot just defend all detectors side channels, but also achiev
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23

Monita, Vivi, Indrarini Dyah Irawati, and Rohmat Tulloh. "Comparison of routing protocol performance on multimedia services on software defined network." Bulletin of Electrical Engineering and Informatics 9, no. 4 (2020): 1612–19. http://dx.doi.org/10.11591/eei.v9i4.2389.

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Software defined network (SDN) is a new paradigm in network engineering, where control plane and data plane are separated. Data plane is carried out on each node, while a control plane is centrally located. In conventional networks, the planes are implemented in the firmware of the router. In this paper, we implemented multimedia services on SDN using exterior and interior routing protocols, such as open shortest path first (OSPF), border gateway protocol (BGP) and routing information protocol (RIP), measured the quality of service (QoS), and analyze the measurement results. The test results s
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24

Jeacocke, Nikki A., and Louise M. Burke. "Methods to Standardize Dietary Intake Before Performance Testing." International Journal of Sport Nutrition and Exercise Metabolism 20, no. 2 (2010): 87–103. http://dx.doi.org/10.1123/ijsnem.20.2.87.

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When testing is undertaken to monitor an athlete’s progress toward competition goals or the effect of an intervention on athletic outcomes, sport scientists should aim to minimize extraneous variables that influence the reliability, sensitivity, or validity of performance measurement. Dietary preparation is known to influence metabolism and exercise performance. Few studies, however, systematically investigate the outcomes of protocols that acutely control or standardize dietary intake in the hours and days before a performance trial. This review discusses the nutrients and dietary components
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Thompson, Michael, Steven L. R. Ellison, Aleš Fajgelj, Paul Willetts, and Roger Wood. "Harmonized guidelines for the use of recovery information in analytical measurement." Pure and Applied Chemistry 71, no. 2 (1999): 337–48. http://dx.doi.org/10.1351/pac199971020337.

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Synopsis: ISO, IUPAC and AOAC INTERNATIONAL have co-operated to produce agreed protocols or guidelines on the "Design, Conduct and Interpretation of Method Performance Studies" [1] on the "Proficiency Testing of (Chemical) Analytical Laboratories" [2] and on "Internal Quality Control in Analytical Chemistry Laboratories" [3]. The Working Group that produced these protocols/guidelines was asked to prepare guidelines on the use of recovery information in analytical measurement. Such guidelines would have to outline minimum recommendations to laboratories producing analytical data on the internal
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26

Ivanova, Bojidarka, and Michael Spiteller. "Quantitative Analysis of Substituted N,N-Dimethyl-tryptamines in the Presence of Natural Type XII Alkaloids." Natural Product Communications 7, no. 10 (2012): 1934578X1200701. http://dx.doi.org/10.1177/1934578x1200701006.

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This paper reports the qualitative and quantitative analysis (QA) of mixtures of hallucinogens, N,N-dimethyltryptamine (DMT) (1), 5-methoxy- (1a) and 5-hydroxy- N,N-dimethyltryptamine (1b) in the presence of β-carbolines (indole alkaloids of type XII) {(2), (3) and (5)}. The validated electronic absorption spectroscopic (EAs) protocol achieved a concentration limit of detection (LOD) of 7.2.10-7 mol/L {concentration limit of quantification (LOQ) of 24.10-7mol/L} using bands (λmax) within 260±0.23-262±0.33 nm. Metrology, including accuracy, measurement repeatability, measurement precision, true
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27

Wang, Liping, Gabrielle Mcmorrow, Xiaohui Zhou, and Zheng D. O'Neill. "Assessing the validity, reliability, and practicality of ASHRAE’s performance measurement protocols (ASHRAE Research Project 1702)." Science and Technology for the Built Environment 25, no. 4 (2019): 464–87. http://dx.doi.org/10.1080/23744731.2018.1561075.

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Webster, Dan E., Meghasyam Tummalacherla, Michael Higgins, et al. "Smartphone-Based VO2max Measurement With Heart Snapshot in Clinical and Real-world Settings With a Diverse Population: Validation Study." JMIR mHealth and uHealth 9, no. 6 (2021): e26006. http://dx.doi.org/10.2196/26006.

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Background Maximal oxygen consumption (VO2max) is one of the most predictive biometrics for cardiovascular health and overall mortality. However, VO2max is rarely measured in large-scale research studies or routine clinical care because of the high cost, participant burden, and requirement for specialized equipment and staff. Objective To overcome the limitations of clinical VO2max measurement, we aim to develop a digital VO2max estimation protocol that can be self-administered remotely using only the sensors within a smartphone. We also aim to validate this measure within a broadly representa
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29

Shaffer, Fredric. "Resonance Frequency Assessment: The Challenge of Standardizing Heart Rate Variability Biofeedback Research." Biofeedback 48, no. 1 (2020): 7–15. http://dx.doi.org/10.5298/1081-5937-48.01.06.

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The resonance frequency (RF) is the rate at which a system, like the cardiovascular system, can be activated or stimulated for maximal variability. Precise RF measurement is needed to standardize training protocols to help researchers determine the importance of RF breathing in achieving clinical and optimal performance outcomes. Lehrer and colleagues have developed and standardized a psychometrically reliable RF measurement protocol that can facilitate training and replication. This article provides a detailed description of their protocol and explains the nuanced decision-making process invo
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30

Zhang, Yan-Jie, Cai-Peng Shen, Zhi-Feng Pan, et al. "Concentration of entanglement in collective-rotating decoherence-free subspace." Modern Physics Letters B 34, no. 05 (2020): 2050067. http://dx.doi.org/10.1142/s0217984920500670.

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An entanglement concentration protocol in photonic collective-rotating decoherence-free subspace (CRDFS) is proposed. To accomplish the scheme, two methods to construct parity measurement devices in CRDFS are presented by exploiting the cross-Kerr nonlinearity, through which partially entangled states are converted to maximally entangled states. The performance of the protocol can be improved by iteration method. Fidelity in consideration of dissipation is discussed, which demonstrates good robustness. In contrast to the conventional protocols, the present one has distinctive feature since it
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31

Lacerda, Lucas Túlio, Rodrigo Otávio Marra-Lopes, Marcel Bahia Lanza, et al. "Resistance training with different repetition duration to failure: effect on hypertrophy, strength and muscle activation." PeerJ 9 (February 25, 2021): e10909. http://dx.doi.org/10.7717/peerj.10909.

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Background This study investigated the effects of two 14-week resistance training protocols with different repetition duration (RD) performed to muscle failure (MF) on gains in strength and muscle hypertrophy as well as on normalized electromyographic (EMG) amplitude and force-angle relationships. Methods The left and right legs of ten untrained males were assigned to either one of the two protocols (2-s or 6-s RD) incorporating unilateral knee extension exercise. Both protocols were performed with 3–4 sets, 50–60% of the one-repetition maximum (1RM), and 3 min rest. Rectus femoris and vastus
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Saminathan, Sathiyan, Henry Finlay Godson, Retna Ponmalar, Ravikumar Manickam, James Mazarello, and Rahul Fernandes. "Dosimetric Performance of Newly Developed Farmer-Type Ionization Chamber in Radiotherapy Practice." Technology in Cancer Research & Treatment 15, no. 6 (2016): NP113—NP120. http://dx.doi.org/10.1177/1533034615621635.

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Dose measurement with ionization chamber is essential to deliver accurate dose to the tumor in radiotherapy. The cylindrical Farmer-type ionization chamber is recommended by various dosimetry protocols for dose measurement of radiotherapy beams. The air-equivalent graphite wall Farmer-type ionization chamber (FAR 65 GB) of active volume 0.65 cm3 with aluminum as the central electrode material was fabricated. Various dosimetric parameters were studied for the newly developed ionization chamber in cobalt-60, 6 and 18 MV photon beams. The preirradiation and postirradiation leakage of the chamber
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Akyüz, Öznur. "Examination of basic motoric characteristics with different stretching exercises in football playersFutbolcularda farklı germe egzersizleri ile temel motorik özelliklerinin incelenmesi." Journal of Human Sciences 14, no. 2 (2017): 1255. http://dx.doi.org/10.14687/jhs.v14i2.4547.

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To investigate acutely the effects of different stretching exercises on football players on the basic motoric properties (strength, flexibility, speed, balance and explosive force). 10 volunteer football players with an average age of 17 participated in the study. Three different measurements protocols were used in the study. The first measurement was performed without stretching exercise, the second measurement was performed after the static stretching exercise and the third measurement was performed after the dynamic stretching exercise. All measurements were carried out at Manisa Tarık Almı
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Gupta, Puneet, Lalita Mittal, Robert A. Rizzo, Mahesh Bikkina, and Vincent A. DeBari. "In-Use Comparison of Blood Pressure Measurements from an Automated Blood Pressure Instrument with Those from a Mercury Sphygmomanometer." Biomedical Instrumentation & Technology 43, no. 2 (2009): 158–63. http://dx.doi.org/10.2345/0899-8205-43.2.158.

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Abstract In addition to its ease of use and degree of independence from the subjectivity inherent in measurements made with the mercury sphygmomanometer (HgS), automated blood pressure measurement instruments (ABPMI) obviate the use of mercury-containing instrumentation and the attendant environmental issues. Thus, they have been widely used in healthcare facilities worldwide. Most evaluations of ABPMI have focused on their compliance with established international protocols, and there has been a paucity of studies examining their performance in actual use in healthcare facilities. The purpose
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Ahmed, Adel A., and Omar Barukab. "Autonomous framework simulation tools for real-time multimedia streaming over wireless ad-hoc networks." SIMULATION 96, no. 2 (2019): 185–97. http://dx.doi.org/10.1177/0037549719859065.

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Real-time video communication has become one of the most significant applications extensively used by homogeneous/heterogeneous wireless network technologies, such as Wi-Fi, the Internet of things, the wireless sensor network (WSN), 5G, etc. This leads to enhanced deployment of multimedia streaming applications over wireless network technologies. In order to accomplish the optimal performance of real-time multimedia streaming applications over the homogeneous/heterogeneous wireless network, it is therefore necessary to develop a simulation tool-set that effectively measures the quality of serv
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Li, Fei, Hai Zhong, Yijun Wang, Ye Kang, Duan Huang, and Ying Guo. "Performance Analysis of Continuous-Variable Quantum Key Distribution with Multi-Core Fiber." Applied Sciences 8, no. 10 (2018): 1951. http://dx.doi.org/10.3390/app8101951.

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Performance analysis of continuous-variable quantum key distribution (CVQKD) has been one of the focuses of quantum communications. In this paper, we propose an approach to enhancing the secret rate of CVQKD with the multi-core fiber (MCF) system that transmits multiple spatial modes simultaneously. The excess noise contributed by the inter-core crosstalk between cores can be effectively suppressed by quantum channel wavelength management, leading to the performance improvement of the MCF-based CVQKD system. In the security analysis, we perform numerical simulations for the Gaussian-modulated
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37

Sun, Lijuan, Jingjing Wang, Xiaoting Su, et al. "Reference ranges of fetal heart function using a Modified Myocardial Performance Index: a prospective multicentre, cross-sectional study." BMJ Open 11, no. 7 (2021): e049640. http://dx.doi.org/10.1136/bmjopen-2021-049640.

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ObjectivesThe primary aim of this study was to establish the normal reference ranges of the fetal left ventricular (LV) Modified Myocardial Performance Index (Mod-MPI). A secondary aim was to evaluate the agreement between manual and automatic measurements for fetal Mod-MPI.DesignA prospective, multicentre, cross-sectional study.ParticipantsNormal singleton pregnancies.MethodsThe LV functions of normal singleton pregnancies were assessed in nine centres covering eight provinces in China using unified ultrasound protocols and settings and standardised measurements by pulsed Doppler at 20–24, 28
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Cheng, Darren Kai-Young, Matthieu Dagenais, Kyla Alsbury-Nealy, et al. "Distance-limited walk tests post-stroke: A systematic review of measurement properties." NeuroRehabilitation 48, no. 4 (2021): 413–39. http://dx.doi.org/10.3233/nre-210026.

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BACKGROUND: Improving walking capacity is a key objective of post-stroke rehabilitation. Evidence describing the quality and protocols of standardized tools for assessing walking capacity can facilitate their implementation. OBJECTIVE: To synthesize existing literature describing test protocols and measurement properties of distance-limited walk tests in people post-stroke. METHODS: Electronic database searches were completed in 2017. Records were screened and appraised for quality. RESULTS: Data were extracted from 43 eligible articles. Among the 12 walk tests identified, the 10-metre walk te
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39

Bang, Inkyu, Hyunwoo Nam, Woohyuk Chang, et al. "Channel Measurement and Feasibility Test for Wireless Avionics Intra-Communications." Sensors 19, no. 6 (2019): 1294. http://dx.doi.org/10.3390/s19061294.

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Wireless avionics intra-communication (WAIC) refers to a wireless communication system among electronic components (e.g., sensors and actuators) that are integrated or installed in an aircraft and it is proposed to replace heavy and expensive wired communication cables. Recently, the use of a frequency band (4.2–4.4 GHz) for the WAIC (so-called, WAIC band) has been approved by international telecommunication union (ITU). Accordingly, several existing wireless protocols such as IEEE 802.11 and IEEE 802.15 are being considered as candidate techniques for the intra-avionics sensor network. In thi
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40

Çağiltay, Ferhat, Alexander Atanasoff, Mehmet Sağlam, et al. "Comparison of Different Anesthetic Protocols for Morphometric Measurements of Carp (Cyprinus carpio)." Advanced Research in Life Sciences 1, no. 1 (2017): 81–84. http://dx.doi.org/10.1515/arls-2017-0014.

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Abstract Measurement of growth performances in fish is carried out in stressful and unnatural environment. The purpose of the present investigation was to compare the effect of four different water-borne anesthetic agents. The fish (Ave. wt. 400.3±7.12 g) were divided into four groups in the glass tanks (80×48×30 cm) containing 80 L of dechlorinated bore water. For the first group we used clove oil (CO) and anesthetic agents used for other three groups were as follows: second group- lidocaine 1% (LC), III groupisoflourane (IF), IV group-halothane (HT). During experiment, water quality paramete
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41

Zahavi, Ori, Alberto Domínguez-Vicent, Rune Brautaset, and Abinaya Priya Venkataraman. "Evaluation of Automated Segmentation Algorithm for Macular Volumetric Measurements of Eight Individual Retinal Layer Thickness." Applied Sciences 11, no. 3 (2021): 1250. http://dx.doi.org/10.3390/app11031250.

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Background: We evaluated the performance of an automated algorithm available on a clinical OCT (Canon-HS100) for macular volumetric measurements of eight individual retinal layers. Methods and Analysis: Two consecutive three-dimensional scans were acquired on 29 subjects with healthy retinas. Thickness measurements were obtained from eight individual retinal layers in nine macular sectors based on Early Treatment Diabetic Retinopathy Study (ETDRS) protocol. The repeatability was evaluated using the within-subject standard deviation from which the repeatability limits (Rlimit) and coefficient o
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42

Abbas, Taimoor, Katrin Sjöberg, Johan Karedal, and Fredrik Tufvesson. "A Measurement Based Shadow Fading Model for Vehicle-to-Vehicle Network Simulations." International Journal of Antennas and Propagation 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/190607.

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The vehicle-to-vehicle (V2V) propagation channel has significant implications on the design and performance of novel communication protocols for vehicularad hocnetworks (VANETs). Extensive research efforts have been made to develop V2V channel models to be implemented in advanced VANET system simulators for performance evaluation. The impact of shadowing caused by other vehicles has, however, largely been neglected in most of the models, as well as in the system simulations. In this paper we present a shadow fading model targeting system simulations based on real measurements performed in urba
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43

Lukaski, Henry, and Christiana J. Raymond-Pope. "New Frontiers of Body Composition in Sport." International Journal of Sports Medicine 42, no. 07 (2021): 588–601. http://dx.doi.org/10.1055/a-1373-5881.

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AbstractThe body composition phenotype of an athlete displays the complex interaction among genotype, physiological and metabolic demands of a sport, diet, and physical training. Observational studies dominate the literature and describe the sport-specific physique characteristics (size, shape, and composition) of adult athletes by gender and levels of competition. Limited data reveal how body composition measurements can benefit an athlete. Thus, the objective is to identify purposeful measurements of body composition, notably fat and lean muscle masses, and determine their impact on the heal
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44

Trie Maya Kadarina and Rinto Priambodo. "Performance Evaluation of IoT-based SpO2 Monitoring Systems for COVID-19 Patients." Journal of Electronics, Electromedical Engineering, and Medical Informatics 3, no. 2 (2021): 64–71. http://dx.doi.org/10.35882/jeeemi.v3i2.1.

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Internet of Things (IoT) applications can be used in healthcare services to monitor patients remotely. One implementation is that it is used to monitor COVID-19 patients. During the COVID-19 pandemic, people who are infected without symptoms must self-isolate so that the virus does not spread. Measurement of blood oxygen levels or SpO2 is one of the measurements that must be carried out in routine examination procedures for self-isolating patients for early detection of silent hypoxemia in COVID-19 patients. Previous research has developed an IoT-based health monitoring system with a Wireless
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45

Carrasco-Poyatos, María, Alberto González-Quílez, Ignacio Martínez-González-Moro, and Antonio Granero-Gallegos. "HRV-Guided Training for Professional Endurance Athletes: A Protocol for a Cluster-Randomized Controlled Trial." International Journal of Environmental Research and Public Health 17, no. 15 (2020): 5465. http://dx.doi.org/10.3390/ijerph17155465.

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Physiological training responses depend on sympathetic (SNS) and parasympathetic nervous system (PNS) balance. This activity can be measured using heart rate variability (HRV). Such a measurement method can favor individualized training planning to improve athletes’ performance. Recently, HRV-guided training has been implemented both on professional and amateur sportsmen and sportswomen with varied results. There is a dearth of studies involving professional endurance athletes following a defined HRV-guided training protocol. The objectives of the proposed protocol are: (i) to determine change
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Hakim, Ahmad Tsaqib, Arrum Prima Dewi, Doan Perdana, and Cyril Nugrahutama Kurnaman. "Energy Consumption Analysis of DBR and VBF Protocols in Underwater Sensor Networks Using Aqua-Sim at Network Simulator 2." JURNAL INFOTEL 10, no. 4 (2018): 170. http://dx.doi.org/10.20895/infotel.v10i4.394.

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For decades, there have been significant interests in monitoring the aquatic environment for scientific exploration, commercial exploitation, coastline protection, and even disasters prevention and mitigation such as tsunami warnings. Highly precise, real-time, and temporal-spatial continuous aquatic environment monitoring system is extremely important for underwater life. To support and simulate such monitoring system, underwater sensor networks (UWSN) have emerged as a very powerful technique for many applications on underwater environment, including monitoring, measurement, surveillance, an
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Sexton-Radek, Kathy, Natalie Osinski, Rita Ator, Michael Keenum, and Dan Connelly. "Conjunctive Measurement of Aquatic Exercise in an Office Setting." Psychological Reports 89, no. 2 (2001): 237–42. http://dx.doi.org/10.2466/pr0.2001.89.2.237.

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The Hydrotrack, a treadmill immersed in a water bath, is designed to provide an in-office approach to aquatic therapy. 24 clinical clients in an outpatient sports medicine practice were invited to use the Hydrotrack as part of their rehabilitation treatment. Our purpose was to describe the way(s) in which the Hydrotrack is useful in rehabilitation treatment. Exercise protocols designed by a physical therapist were used for each subject. We monitored an external criterion, heart rate, to measure the subjects' exertion during the exercise process. Self-reported ratings of exercise efficacy and e
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48

Sneath, R. W., and C. Clarkson. "Odour measurement: A code of practice." Water Science and Technology 41, no. 6 (2000): 23–31. http://dx.doi.org/10.2166/wst.2000.0089.

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Odour emission is as much a part of the adverse effect of any new or existing process as noise, water pollution, VOC emissions or radiation. It is essential to quantify it whenever plans are being made for new or modified processes. The first aspect of quantification of odour emission is the need to use a standard method of measurement of odour concentration. Aswith liquid effluents where we use standard laboratory methods for each characteristic, e.g. BOD, COD, TSS etc., the analysis method for measurement of odour concentration is the CEN/TC264/wg2 (draftprEN13725) standard (ComittéEuropéen
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49

Vrdoljak, Juan, Kevin Imanol Sanchez, Roberto Arreola-Ramos, et al. "Testing repeatability, measurement error and species differentiation when using geometric morphometrics on complex shapes: a case study of Patagonian lizards of the genus Liolaemus (Squamata: Liolaemini)." Biological Journal of the Linnean Society 130, no. 4 (2020): 800–812. http://dx.doi.org/10.1093/biolinnean/blaa079.

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Abstract The repeatability of findings is the key factor behind scientific reliability, and the failure to reproduce scientific findings has been termed the ‘replication crisis’. Geometric morphometrics is an established tool in evolutionary biology. However, different operators (and/or different methods) could act as large sources of variation in the data obtained. Here, we investigated inter-operator error in geometric morphometric protocols on complex shapes of Liolaemus lizards, as well as measurement error in three taxa varying in their difficulty of digitalization. We also examined the p
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50

Rico-González, Markel, Asier Los Arcos, Daniel Rojas-Valverde, Filipe M. Clemente, and José Pino-Ortega. "A Survey to Assess the Quality of the Data Obtained by Radio-Frequency Technologies and Microelectromechanical Systems to Measure External Workload and Collective Behavior Variables in Team Sports." Sensors 20, no. 8 (2020): 2271. http://dx.doi.org/10.3390/s20082271.

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Electronic performance and tracking systems (EPTS) and microelectromechanical systems (MEMS) allow the measurement of training load (TL) and collective behavior in team sports so that match performance can be optimized. Despite the frequent use of radio-frequency (RF) technology (i.e., global positioning navigation systems (GNSS/global positioning systems (GPS)) and, local position systems (LPS)) and MEMS in sports research, there is no protocol that must be followed, nor are there any set guidelines for evaluating the quality of the data collection process in studies. Thus, this study aims to
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