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Journal articles on the topic 'Total Expected Error'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Aldelgawy, Mohammed. "Evaluation of Cadastral Work Done Using Total Station Instrument." Academic Perspective Procedia 1, no. 1 (November 9, 2018): 115–29. http://dx.doi.org/10.33793/acperpro.01.01.24.

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Total station has become the main tool in most engineering work. Accordingly, evaluation of this work has gained a significant importance. A methodology to evaluate precision of cadastral work done using total station is presented here. The used technique is based on propagation of random errors of quantities measured by total station; i.e., distance and both horizontal and vertical angles. Random error in distance is produced by EDM unit integrated into total station. Whereas, random errors in horizontal and vertical angles are produced by theodolite integrated unit. Moreover, backsight proce

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2

Karon, Brad S., James C. Boyd, and George G. Klee. "Glucose Meter Performance Criteria for Tight Glycemic Control Estimated by Simulation Modeling." Clinical Chemistry 56, no. 7 (July 1, 2010): 1091–97. http://dx.doi.org/10.1373/clinchem.2010.145367.

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Abstract Background: Glucose meter analytical performance criteria required for safe and effective management of patients on tight glycemic control (TGC) are not currently defined. We used simulation modeling to relate glucose meter performance characteristics to insulin dosing errors during TGC. Methods: We used 29 920 glucose values from patients on TGC at 1 institution to represent the expected distribution of glucose values during TGC, and we used 2 different simulation models to relate glucose meter analytical performance to insulin dosing error using these 29 920 initial glucose values a

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Rochon, Yves J., Peyman Rahnama, and Ian C. McDade. "Satellite Measurement of Stratospheric Winds and Ozone Using Doppler Michelson Interferometry. Part II: Retrieval Method and Expected Performance." Journal of Atmospheric and Oceanic Technology 23, no. 6 (June 1, 2006): 770–84. http://dx.doi.org/10.1175/jtech1882.1.

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Abstract This paper is about the retrieval of horizontal wind and ozone number density from measurement simulations for the Stratospheric Wind Interferometer for Transport Studies (SWIFT). This instrument relies on the concept of imaging Doppler Michelson interferometry applied to thermal infrared emission originating from the stratosphere. The instrument and measurement simulations are described in detail in the first of this series of two papers. In this second paper, a summary of the measurement simulations and a data retrieval method suited to these measurements are first presented. The in

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Wee, Nam-Sook. "Optimal Maintenance Schedules of Computer Software." Probability in the Engineering and Informational Sciences 4, no. 2 (April 1990): 243–55. http://dx.doi.org/10.1017/s026996480000156x.

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We present a decision procedure to determine the optimal maintenance intervals of a computer software throughout its operational phase. Our model accounts for the average cost per each maintenance activity and the damage cost per failure with the future cost discounted. Our decision policy is optimal in the sense that it minimizes the expected total cost. Our model assumes that the total number of errors in the software has a Poisson distribution with known mean λ and each error causes failures independently of other errors at a known constant failure rate. We study the structures of the optim

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Indriani, Silvia. "Students’ Errors in Using the Simple Present Tense at Polytechnic ATI Padang." Lingua Cultura 13, no. 3 (September 27, 2019): 217. http://dx.doi.org/10.21512/lc.v13i3.5840.

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The research aimed at analyzing the errors in using simple present tense at Logistics Management of Agro-Industry of Polytechnic ATI Padang. A qualitative method with descriptive approach was applied. The samples were 15% of 153 total students or 23 students. Data were collected through the writing test; namely, descriptive essay. The results show that many students commit errors in using the simple present tense. The errors are classified into four types: omission, addition, misinformation, and misordering. There are 107 errors with the highest number that is omission (61 errors or 57%). Misi

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Mehtätalo, Lauri, and Annika Kangas. "An approach to optimizing field data collection in an inventory by compartments." Canadian Journal of Forest Research 35, no. 1 (January 1, 2005): 100–112. http://dx.doi.org/10.1139/x04-139.

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This study presents models for the expected error of the total volume and saw timber volume due to sampling errors of stand measurements. The measurements considered are horizontal point sample plots, stem numbers from circular plots, sample tree heights, sample order statistics (i.e., quantile trees), and sample tree heights from the previous inventory. Different measurement strategies were constructed by systematically varying the numbers of these measurements. A model system developed for this study was used in a data set of 170 stands to predict the total volume and saw timber volume of ea

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Verhoelst, T., J. Granville, F. Hendrick, U. Köhler, C. Lerot, J. P. Pommereau, A. Redondas, M. Van Roozendael, and J. C. Lambert. "Metrology of ground-based satellite validation: co-location mismatch and smoothing issues of total ozone comparisons." Atmospheric Measurement Techniques 8, no. 12 (December 2, 2015): 5039–62. http://dx.doi.org/10.5194/amt-8-5039-2015.

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Abstract. Comparisons with ground-based correlative measurements constitute a key component in the validation of satellite data on atmospheric composition. The error budget of these comparisons contains not only the measurement errors but also several terms related to differences in sampling and smoothing of the inhomogeneous and variable atmospheric field. A versatile system for Observing System Simulation Experiments (OSSEs), named OSSSMOSE, is used here to quantify these terms. Based on the application of pragmatic observation operators onto high-resolution atmospheric fields, it allows a s

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Seoane, Fernando, Shirin Abtahi, Farhad Abtahi, Lars Ellegård, Gudmundur Johannsson, Ingvar Bosaeus, and Leigh C. Ward. "Mean Expected Error in Prediction of Total Body Water: A True Accuracy Comparison between Bioimpedance Spectroscopy and Single Frequency Regression Equations." BioMed Research International 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/656323.

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For several decades electrical bioimpedance (EBI) has been used to assess body fluid distribution and body composition. Despite the development of several different approaches for assessing total body water (TBW), it remains uncertain whether bioimpedance spectroscopic (BIS) approaches are more accurate than single frequency regression equations. The main objective of this study was to answer this question by calculating the expected accuracy of a single measurement for different EBI methods. The results of this study showed that all methods produced similarly high correlation and concordance

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Schouten, S. M., M. E. van de Velde, G. J. L. Kaspers, L. B. Mokkink, I. M. van der Sluis, C. van den Bos, A. Hartman, F. C. H. Abbink, and M. H. van den Berg. "Measuring vincristine-induced peripheral neuropathy in children with cancer: validation of the Dutch pediatric–modified Total Neuropathy Score." Supportive Care in Cancer 28, no. 6 (November 16, 2019): 2867–73. http://dx.doi.org/10.1007/s00520-019-05106-3.

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Abstract Purpose The aims were to evaluate the construct validity and reliability of the Dutch version of the pediatric-modified Total Neuropathy Score (ped-mTNS) for assessing vincristine-induced peripheral neuropathy (VIPN) in Dutch pediatric oncology patients aged 5–18 years. Methods Construct validity (primary aim) of the ped-mTNS was determined by testing hypotheses about expected correlation between scores of the ped-mTNS (range: 0–32) and the Common Terminology Criteria for Adverse Events (CTCAE) (range: 0–18) for patients and healthy controls and by comparing patients and controls rega

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10

Verhoelst, T., J. Granville, F. Hendrick, U. Köhler, C. Lerot, J. P. Pommereau, A. Redondas, M. Van Roozendael, and J. C. Lambert. "Metrology of ground-based satellite validation: co-location mismatch and smoothing issues of total ozone comparisons." Atmospheric Measurement Techniques Discussions 8, no. 8 (August 4, 2015): 8023–82. http://dx.doi.org/10.5194/amtd-8-8023-2015.

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Abstract. Comparisons with ground-based correlative measurements constitute a key component in the validation of satellite data on atmospheric composition. The error budget of these comparisons contains not only the measurement uncertainties but also several terms related to differences in sampling and smoothing of the inhomogeneous and variable atmospheric field. A versatile system for Observing System Simulation Experiments (OSSEs), named OSSSMOSE, is used here to quantify these terms. Based on the application of pragmatic observation operators onto high-resolution atmospheric fields, it all

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Cohn, Joseph V., Paul DiZio, and James R. Lackner. "Reaching During Virtual Rotation: Context Specific Compensations for Expected Coriolis Forces." Journal of Neurophysiology 83, no. 6 (June 1, 2000): 3230–40. http://dx.doi.org/10.1152/jn.2000.83.6.3230.

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Subjects who are in an enclosed chamber rotating at constant velocity feel physically stationary but make errors when pointing to targets. Reaching paths and endpoints are deviated in the direction of the transient inertial Coriolis forces generated by their arm movements. By contrast, reaching movements made during natural, voluntary torso rotation seem to be accurate, and subjects are unaware of the Coriolis forces generated by their movements. This pattern suggests that the motor plan for reaching movements uses a representation of body motion to prepare compensations for impending self-gen

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Chen, Chung Ho. "Dodge-Romig LTPD Single Sampling Plan under Quality Investment and Inspection Error." Applied Mechanics and Materials 284-287 (January 2013): 3591–96. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.3591.

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In this study, the author proposes an economic design of quality investment for a Dodge-Romig single sampling inspection plan with inspection error. The optimal sampling inspection plan and quality investment level are jointly determined by minimizing the expected total cost of product under the specified consumer’s risk. Finally, the comparison of solution between the model with/without inspection error will be provided for illustration.

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Helmy, Naeder, Mai Lan Dao Trong, and Stefanie P. Kühnel. "Accuracy of Patient Specific Cutting Blocks in Total Knee Arthroplasty." BioMed Research International 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/562919.

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Background.Long-term survival of total knee arthroplasty (TKA) is mainly determined by optimal positioning of the components and prosthesis alignment. Implant positioning can be optimized by computer assisted surgery (CAS). Patient specific cutting blocks (PSCB) seem to have the potential to improve component alignment compared to the conventional technique and to be comparable to CAS.Methods.113 knees were selected for PSI and included in this study. Pre- and postoperative mechanical axis, represented by the hip-knee-angle (HKA), the proximal tibial angle (PTA), the distal femoral angle (DFA)

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14

van Beesten, E. Ruben, and Ward Romeijnders. "Convex approximations for two-stage mixed-integer mean-risk recourse models with conditional value-at-risk." Mathematical Programming 181, no. 2 (September 9, 2019): 473–507. http://dx.doi.org/10.1007/s10107-019-01428-6.

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Abstract In traditional two-stage mixed-integer recourse models, the expected value of the total costs is minimized. In order to address risk-averse attitudes of decision makers, we consider a weighted mean-risk objective instead. Conditional value-at-risk is used as our risk measure. Integrality conditions on decision variables make the model non-convex and hence, hard to solve. To tackle this problem, we derive convex approximation models and corresponding error bounds, that depend on the total variations of the density functions of the random right-hand side variables in the model. We show

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15

Kalinowski, Steven T. "Genetic polymorphism and mixed-stock fisheries analysis." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 7 (July 1, 2004): 1075–82. http://dx.doi.org/10.1139/f04-060.

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Genetic data can be used to estimate the stock composition of mixed-stock fisheries. Designing efficient strategies for estimating mixture proportions is important, but several aspects of study design remain poorly understood, particularly the relationship between genetic polymorphism and estimation error. In this study, computer simulation was used to investigate how the following variables affect expected squared error of mixture estimates: the number of loci examined, the number of alleles at those loci, and the size of baseline data sets. This work showed that (i) loci with more alleles pr

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16

Manene, M. M. "Step-Wise Group Screening Designs with Unequal A-Priori Probabilities and Errors in Observations." Sultan Qaboos University Journal for Science [SQUJS] 8, no. 2 (June 1, 2003): 153. http://dx.doi.org/10.24200/squjs.vol8iss2pp153-165.

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The performance of step-wise group screening with unequal a-priori probabilities in terms of the expected number of runs and the expected maximum number of incorrect decisions is considered. A method of obtaining optimal step-wise designs with unequal a-priori probabilities is presented for the case in which the direction of each defective factor is assumed to be known a -priori and observations are subject to error. An appropriate cost function is introduced and the value of the group size which minimizes the expected total cost is obtained.

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Director, Hannah M., Adrian E. Raftery, and Cecilia M. Bitz. "Improved Sea Ice Forecasting through Spatiotemporal Bias Correction." Journal of Climate 30, no. 23 (December 2017): 9493–510. http://dx.doi.org/10.1175/jcli-d-17-0185.1.

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A new method, called contour shifting, is proposed for correcting the bias in forecasts of contours such as sea ice concentration above certain thresholds. Retrospective comparisons of observations and dynamical model forecasts are used to build a statistical spatiotemporal model of how predicted contours typically differ from observed contours. Forecasted contours from a dynamical model are then adjusted to correct for expected errors in their location. The statistical model changes over time to reflect the changing error patterns that result from reducing sea ice cover in the satellite era i

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Cho, Sung Ho, and Eun Soo Lee. "A Development of 3-Dimensional Coordinates Monitoring System for Underground Pipeline Using IMU Sensor." Applied Mechanics and Materials 204-208 (October 2012): 2749–52. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.2749.

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The three-dimensional coordinates monitoring system to underground pipeline using IMU (Inertial Measurement Unit) sensing technique was developed. Three-dimensional coordinates obtained from the developed system were compared with three-dimensional coordinates obtained from using total stations and levels. when compared with the results, maximum error of the horizontal and vertical positions were 7cm ,14cm respectively. In our Country, tolerance error of underground utility surveying is ± 30cm. Therefore, the developed system is expected to be utilized the underground pipeline location surveyi

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19

Klipp, Telmo dos Santos, Adriano Petry, Jonas Rodrigues de Souza, Eurico Rodrigues de Paula, Gabriel Sandim Falcão, and Haroldo Fraga de Campos Velho. "Ionosonde total electron content evaluation using International Global Navigation Satellite System Service data." Annales Geophysicae 38, no. 2 (March 18, 2020): 347–57. http://dx.doi.org/10.5194/angeo-38-347-2020.

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Abstract. In this work, a period of 2 years (2016–2017) of ionospheric total electron content (ITEC) from ionosondes operating in Brazil is compared to the International GNSS (Global Navigation Satellite System) Service (IGS) vertical total electron content (vTEC) data. Sounding instruments from the National Institute for Space Research (INPE) provided the ionograms used, which were filtered based on confidence score (CS) and C-Level flag evaluation. Differences between vTEC from IGS maps and ionosonde TEC were accumulated in terms of root mean squared error (RMSE). As expected, we noticed tha

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Kolaitis, Phokion G., Lucian Popa, and Kun Qian. "Knowledge Refinement via Rule Selection." Proceedings of the AAAI Conference on Artificial Intelligence 33 (July 17, 2019): 2886–94. http://dx.doi.org/10.1609/aaai.v33i01.33012886.

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In several different applications, including data transformation and entity resolution, rules are used to capture aspects of knowledge about the application at hand. Often, a large set of such rules is generated automatically or semi-automatically, and the challenge is to refine the encapsulated knowledge by selecting a subset of rules based on the expected operational behavior of the rules on available data. In this paper, we carry out a systematic complexity-theoretic investigation of the following rule selection problem: given a set of rules specified by Horn formulas, and a pair of an inpu

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Parvin, Curtis A., and Ann M. Gronowski. "Effect of analytical run length on quality-control (QC) performance and the QC planning process." Clinical Chemistry 43, no. 11 (November 1, 1997): 2149–54. http://dx.doi.org/10.1093/clinchem/43.11.2149.

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Abstract The performance measure traditionally used in the quality-control (QC) planning process is the probability of rejecting an analytical run when an out-of-control error condition exists. A shortcoming of this performance measure is that it doesn’t allow comparison of QC strategies that define analytical runs differently. Accommodating different analytical run definitions is straightforward if QC performance is measured in terms of the average number of patient samples to error detection, or the average number of patient samples containing an analytical error that exceeds total allowable

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Birchall, J. "Reduction of the effects of transverse polarization in a measurement of parity violation in proton–proton scattering at 230 MeV." Canadian Journal of Physics 66, no. 6 (June 1, 1988): 530–33. http://dx.doi.org/10.1139/p88-088.

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An overview is given of some of the sources of systematic error expected in a new measurement of parity violation in proton–roton scattering at 230 MeV. The experiment involves the measurement of an angular distribution of the longitudinal analyzing power, Az(θ), as well as of the more conventionally measured total analyzing power, Az.

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Verma, Shreeya, Julia Marshall, Mark Parrington, Anna Agustí-Panareda, Sebastien Massart, Martyn P. Chipperfield, Christopher Wilson, and Christoph Gerbig. "Extending methane profiles from aircraft into the stratosphere for satellite total column validation using the ECMWF C-IFS and TOMCAT/SLIMCAT 3-D model." Atmospheric Chemistry and Physics 17, no. 11 (June 7, 2017): 6663–78. http://dx.doi.org/10.5194/acp-17-6663-2017.

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Abstract. Airborne observations of greenhouse gases are a very useful reference for validation of satellite-based column-averaged dry air mole fraction data. However, since the aircraft data are available only up to about 9–13 km altitude, these profiles do not fully represent the depth of the atmosphere observed by satellites and therefore need to be extended synthetically into the stratosphere. In the near future, observations of CO2 and CH4 made from passenger aircraft are expected to be available through the In-Service Aircraft for a Global Observing System (IAGOS) project. In this study,

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Berend, Daniel, Shlomi Dolev, and Ariel Hanemann. "Graph Degree Sequence Solely Determines the Expected Hopfield Network Pattern Stability." Neural Computation 27, no. 1 (January 2015): 202–10. http://dx.doi.org/10.1162/neco_a_00685.

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We analyze the effect of network topology on the pattern stability of the Hopfield neural network in the case of general graphs. The patterns are randomly selected from a uniform distribution. We start the Hopfield procedure from some pattern v. An error in an entry e of v is the situation where, if the procedure is started at e, the value of e flips. Such an entry is an instability point. Note that we disregard the value at e by the end of the procedure, as well as what happens if we start the procedure from another pattern [Formula: see text] or another entry [Formula: see text] of v. We mea

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Maggioni, Viviana, Mathew R. P. Sapiano, Robert F. Adler, Yudong Tian, and George J. Huffman. "An Error Model for Uncertainty Quantification in High-Time-Resolution Precipitation Products." Journal of Hydrometeorology 15, no. 3 (June 1, 2014): 1274–92. http://dx.doi.org/10.1175/jhm-d-13-0112.1.

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Abstract This study proposes a new framework, Precipitation Uncertainties for Satellite Hydrology (PUSH), to provide time-varying, global estimates of errors for high-time-resolution, multisatellite precipitation products using a technique calibrated with high-quality validation data. Errors are estimated for the widely used Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) 3B42 product at daily/0.25° resolution, using the NOAA Climate Prediction Center (CPC) Unified gauge dataset as the benchmark. PUSH estimates the probability distribution of reference p

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Lim, K. B., and H. L. Pardue. "Error-compensating kinetic method for enzymatic determination of DNAs." Clinical Chemistry 39, no. 9 (September 1, 1993): 1850–56. http://dx.doi.org/10.1093/clinchem/39.9.1850.

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Abstract We describe the adaptation and evaluation of an error-compensating method for kinetic determinations of deoxyribonucleic acids (DNAs). The DNA is first reacted with ethidium bromide to produce a fluorescent intercalation complex. Subsequent treatment of the complex with DNase catalyzes hydrolysis of the DNA, causing a time-dependent decrease in fluorescence, which is monitored. A model for two-component parallel first-order processes is fit to the decay curve to predict the total change in fluorescence expected if the process were monitored to equilibrium. The predicted change in fluo

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Prager, Michael H., and Alec D. MacCall. "Sensitivities and Variances of Virtual Population Analysis As Applied to the Mackerel, Scomber japonicus." Canadian Journal of Fisheries and Aquatic Sciences 45, no. 3 (March 1, 1988): 539–47. http://dx.doi.org/10.1139/f88-063.

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Virtual population analysis (VPA) is widely used in fish stock assessment. However, VPA results are generally presented as point estimates, without error variance. Using numerical methods, we estimated the total variance of historical (1929–65) biomass estimates of mackerel, Scomber japonicus, off southern California. In the years before 1940, coefficients of variation (CV's) approached 100%; later, when weights at age and the age structure of the catch were better known, the CV's were about 25%. Most of the variability derives from uncertainties in estimates of natural mortality (M) and of we

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Forrester, Mathias B. "Pattern of oseltamivir ingestions reported to Texas poison centers." Human & Experimental Toxicology 29, no. 2 (December 16, 2009): 137–40. http://dx.doi.org/10.1177/0960327109357219.

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During serious influenza outbreaks, the number of oseltamivir exposures reported to poison centers might be expected to increase. This investigation describes the pattern of oseltamivir ingestions reported to Texas poison centers during 2000—2008. Of 298 total ingestions, 91.9% occurred in December—March, 76.8% involved patients aged 0—19 years, 72.5% resulted from therapeutic error, 90.0% were managed on-site, and 80.0% had no effect. The most frequently reported adverse clinical effects were vomiting (7.5%), nausea (3.8%), and abdominal pain (3.8%). Oseltamivir ingestions were reported to Te

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Kay, Melissa C., Emily W. Duffy, Lisa J. Harnack, Andrea S. Anater, Joel C. Hampton, Alison L. Eldridge, and Mary Story. "Development and Application of a Total Diet Quality Index for Toddlers." Nutrients 13, no. 6 (June 5, 2021): 1943. http://dx.doi.org/10.3390/nu13061943.

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For the first time, the 2020–2025 Dietary Guidelines for Americans include recommendations for infants and toddlers under 2 years old. We aimed to create a diet quality index based on a scoring system for ages 12 to 23.9 months, the Toddler Diet Quality Index (DQI), and evaluate its construct validity using 24 h dietary recall data collected from a national sample of children from the Feeding Infants and Toddlers Study (FITS) 2016. The mean (standard error) Toddler DQI was 49 (0.6) out of 100 possible points, indicating room for improvement. Toddlers under-consumed seafood, greens and beans, a

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Eissa, Fathy H., Shuo-Jye Wu, and Hamid H. Ahmed. "Estimation of the Parameters and Expected Test Time of Exponentiated Weibull Lifetimes Under Type II Progressive Censoring Scheme With Random Removals." International Journal of Statistics and Probability 8, no. 2 (February 11, 2019): 124. http://dx.doi.org/10.5539/ijsp.v8n2p124.

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Based on progressive type-II censored sample with random removals, point and interval estimations for the shape parameters of the exponentiated Weibull distribution are discussed. Computational formula for the expected total test time are derived for different situations of sampling plans. This is useful in planning a life test experiment. The efficiency of the estimators are compared in terms of the root mean square error, the variance and the coverage probability of the corresponding confidence intervals. A simulation study is presented for several values of removal probability and different

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Ruiz-Arias, J. A., J. Dudhia, C. A. Gueymard, and D. Pozo-Vázquez. "Assessment of the Level-3 MODIS daily aerosol optical depth in the context of surface solar radiation and numerical weather modeling." Atmospheric Chemistry and Physics 13, no. 2 (January 18, 2013): 675–92. http://dx.doi.org/10.5194/acp-13-675-2013.

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Abstract. The daily Level-3 MODIS aerosol optical depth (AOD) product is a global daily spatial aggregation of the Level-2 MODIS AOD (10-km spatial resolution) into a regular grid with a resolution of 1° × 1°. It offers interesting characteristics for surface solar radiation and numerical weather modeling applications. However, most of the validation efforts so far have focused on Level-2 products and only rarely on Level 3. In this contribution, we compare the Level-3 Collection 5.1 MODIS AOD dataset from the Terra satellite available since 2000 against observed daily AOD values at 550 nm fro

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Sellitto, P., G. Dufour, M. Eremenko, J. Cuesta, P. Dauphin, G. Forêt, B. Gaubert, M. Beekmann, V. H. Peuch, and J. M. Flaud. "Analysis of the potential of one possible instrumental configuration of the next generation of IASI instruments to monitor lower tropospheric ozone." Atmospheric Measurement Techniques 6, no. 3 (March 8, 2013): 621–35. http://dx.doi.org/10.5194/amt-6-621-2013.

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Abstract. To evaluate the added value brought by the next generation of IASI (Infrared Atmospheric Sounder Interferometer) instruments to monitor lower tropospheric (LT) ozone, we developed a pseudo-observation simulator, including a direct simulator of thermal infrared spectra and a full inversion scheme to retrieve ozone concentration profiles. We based our simulations on the instrumental configuration of IASI and of an IASI-like instrument, with a factor 2 improvement in terms of spectral resolution and radiometric noise. This scenario, that will be referred to as IASI/2, is one possible co

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Lau, F. L., and J. Sejvar. "Computerized Dose Estimates for Maintenance." Journal of Engineering for Gas Turbines and Power 110, no. 4 (October 1, 1988): 666–69. http://dx.doi.org/10.1115/1.3240189.

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The minimization and control of radiation exposure usually starts with the determination of the total expected dose. Manual determination of an accurate value can require an extensive, error-prone amount of data manipulation. By computerizing the model for this determination the individual task and total dose values can be identified much more rapidly and accurately than by manual methods. Also, high-dose operations can be easily evaluated for ways to reduce exposure. The microcomputer also allows instantaneous updating of estimates as changes are made both in the planning stage and in the per

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Cesaroni, Claudio, Luca Spogli, and Giorgiana De Franceschi. "IONORING: Real-Time Monitoring of the Total Electron Content over Italy." Remote Sensing 13, no. 16 (August 19, 2021): 3290. http://dx.doi.org/10.3390/rs13163290.

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IONORING (IONOspheric RING) is a tool capable to provide the real-time monitoring and modeling of the ionospheric Total Electron Content (TEC) over Italy, in the latitudinal and longitudinal ranges of 35°N–48°N and 5°E–20°E, respectively. IONORING exploits the Global Navigation Satellite System (GNSS) data acquired by the RING (Rete Integrata Nazionale GNSS) network, managed by the Istituto Nazionale di Geofisica e Vulcanologia (INGV). The system provides TEC real-time maps with a very fine spatial resolution (0.1° latitude x 0.1° longitude), with a refresh time of 10 min and a typical latency

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Jamri, M. Saifuzam, Muhammad Nizam Kamarudin, and Mohd Luqman Mohd Jamil. "Total power deficiency estimation of isolated power system network using full-state observer method." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 3 (September 1, 2021): 1249. http://dx.doi.org/10.11591/ijeecs.v23.i3.pp1249-1257.

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<span>An isolated electrical network with an independent local distributed generator is very sensitive towards the contingencies between load demand and supply. Although the network system has less complexity in term of structure, its stability condition is crucial due to its stand-alone operating condition. The total power deficit in the network gives the important information related to the dynamical frequency responses which may directly affect the system’s stability level. In this paper, the approach to estimate the total power deficiency for the isolated electrical network was prese

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McMahon, Samuel E., Paul Magill, Daniel P. Bopf, and David E. Beverland. "A device to make the pelvic sagittal plane horizontal and reduce error in cup inclination during total hip arthroplasty: a validation study." HIP International 28, no. 5 (September 2018): 473–77. http://dx.doi.org/10.1177/1120700017752615.

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Introduction: Radiological inclination (RI) is determined in part by operative inclination (OI), which is defined as the angle between the cup axis or handle and the sagittal plane. In lateral decubitus the theatre floor becomes a surrogate for the pelvic sagittal plane. Critically at the time of cup insertion if the pelvic sagittal plane is not parallel to the floor either because the upper hemi pelvis is internally rotated or adducted, RI can be much greater than expected. We have developed a simple Pelvic Orientation Device (POD) to help achieve a horizontal pelvic sagittal plane. Methods:

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Hansen, Michael J., Louise Chavarie, Andrew M. Muir, Kimberly L. Howland, and Charles C. Krueger. "Variation in Fork-to-Total Length Relationships of North American Lake Trout Populations." Journal of Fish and Wildlife Management 11, no. 1 (February 17, 2020): 263–72. http://dx.doi.org/10.3996/102019-jfwm-096.

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Abstract Length of fish species with forked tails, such as the Lake Trout Salvelinus namaycush, can be measured as total (TL), fork (FL), or standard (SL) length, although individual studies of such species often rely on only one measurement, which hinders comparisons among studies. To determine if variation in the relationship between FL and TL among Lake Trout populations affected estimates of FL from TL, we compared length relationships within Lake Trout populations sampled in multiple years, among multiple locations within lakes, among lakes, and from all samples from across the species' r

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Nikitovic, Vladimir. "Demographic future of Serbia from a different angle." Stanovnistvo 51, no. 2 (2013): 53–81. http://dx.doi.org/10.2298/stnv1302053n.

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Based on the assessment of the empirical errors in the official population forecasts of Serbia, the paper shows why forecast users might want a change of the current official concept. The article consists of three parts. The first gives a brief chronological overview of the methods and hypotheses in the official population forecasts of Serbia during the last 60 years. The second refers to the quantification of the past forecast errors in projecting total fertility rate, life expectancy at birth and total population aiming at assessment of the empirical variability. The third part shows the pro

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Lawrence, J. P., R. J. Leigh, and P. S. Monks. "The impact of surface reflectance variability on total column differential absorption LiDAR measurements of atmospheric CO<sub>2</sub>." Atmospheric Measurement Techniques Discussions 3, no. 1 (January 11, 2010): 147–84. http://dx.doi.org/10.5194/amtd-3-147-2010.

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Abstract. The remote sensing technique, total column differential absorption LiDAR (TC-DIAL) has been proposed in a number of feasibility studies as a suitable method for making total column measurements of atmospheric CO2 from space. Among the sources of error associated with TC-DIAL retrievals from space is an undefined modulation of the received signals resulting from the variability in the Earth's surface reflectance between the LiDAR pulses. This source of uncertainty is investigated from a satellite perspective by the application of a computer model for spaceborne TC-DIAL instruments. Th

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Mustafa, Mohammad Z., Ashraf A. Khan, Harry Bennett, Andrew J. Tatham, and Mark Wright. "Accuracy of biometric formulae in hypermetropic patients undergoing cataract surgery." European Journal of Ophthalmology 29, no. 5 (October 1, 2018): 510–15. http://dx.doi.org/10.1177/1120672118803509.

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Purpose: To audit and analyse the accuracy of current biometric formulae on refractive outcomes following cataract surgery in patients with axial length less than 22 mm. Methods: A total of 84 eyes from 84 patients with axial length <22 mm were identified from consecutive patients undergoing cataract surgery retrospectively at a single university hospital. All subjects had biometry using the IOLMaster (Carl Zeiss Meditec, Inc, Dublin, CA, USA) and a Sensar AR40 intraocular lens implant (Abbott Medical Optics, CA, USA). One eye from each patient was randomly selected for inclusion. Predictio

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Nugraha, Dimas Pramita, and Inayah Inayah. "Gambaran Farmakoterapi Pasien Common Cold Di Puskesmas Pekanbaru." Jurnal Ilmu Kedokteran 10, no. 1 (December 29, 2017): 63. http://dx.doi.org/10.26891/jik.v10i1.2016.63-66.

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Common cold is still a disease with the most number of cases in Indonesia and the province of Riau in out patientswho visited the primary health center (Puskesmas). However, in primary health care, like Puskesmas and privatepractice physicians are expected pharmacotherapy common cold is not rational. Medication errors is a common problem.The purpose of this study was to determine how the use of pharmacotherapy in patients with the common cold inPuskesmas Pekanbaru. This study was an observational descriptive , with a total sample 4602 people who meet thespecified criteria .The results showed t

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Pandey, Aakriti, Arun Kaushik, Sanjay K. Singh, and Umesh Singh. "Statistical Analysis for Generalized Progressive Hybrid Censored Data from Lindley Distribution under Step-Stress Partially Accelerated Life Test Model." Austrian Journal of Statistics 50, no. 1 (February 3, 2021): 105–20. http://dx.doi.org/10.17713/ajs.v50i1.1004.

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The aim of this paper is to present the estimation procedure for the step-stress partially accelerated life test model under the generalized progressive hybrid censoring scheme. The uncertainties are assumed to be governed by Lindley distribution. The problem with point and interval estimation of the parameters as well as the acceleration factor using maximum likelihood approach for the step-stress partially accelerated life test model has been considered. A simulation study is conducted to monitor the performance of the estimators on the basis of the mean squared error under the considered ce

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Sonnewald, Maike, Carl Wunsch, and Patrick Heimbach. "Linear Predictability: A Sea Surface Height Case Study." Journal of Climate 31, no. 7 (April 2018): 2599–611. http://dx.doi.org/10.1175/jcli-d-17-0142.1.

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A benchmark of linear predictability of sea surface height (SSH) globally is presented, complementing more complicated studies of SSH predictability. Twenty years of the Estimating the Circulation and Climate of the Ocean (ECCOv4) state estimate (1992–2011) are used, fitting autoregressive moving average [ARMA([Formula: see text])] models where the order of the coefficients is chosen by the Akaike information criteria (AIC). Up to 50% of the ocean SSH variability is dominated by the seasonal signal. The variance accounted for by the nonseasonal SSH is particularly distinct in the Southern and

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Sultana, Mahmuda, Md Sazzad Hossain, Iffat Ara, and Jobaida Sultana. "Medical Errors and Patient Safety Education: Views of Intern Doctors." Bangladesh Medical Research Council Bulletin 44, no. 2 (November 22, 2018): 82–88. http://dx.doi.org/10.3329/bmrcb.v44i2.38701.

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Medical errors and patient safety have become increasingly important in the area of medical research in the recent years. World health Organization and other international committees have long been recommending the early integration of education about errors and patient safety in undergraduate and graduate medical education. To integrate patient safety education into existing curriculum views of the doctors towards patient safety education is an important issue. This descriptive type of cross sectional study was carried out to explore the views of intern doctors regarding medical error and pat

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Kotivuori, Eetu, Matti Maltamo, Lauri Korhonen, Jacob L. Strunk, and Petteri Packalen. "Prediction error aggregation behaviour for remote sensing augmented forest inventory approaches." Forestry: An International Journal of Forest Research 94, no. 4 (March 24, 2021): 576–87. http://dx.doi.org/10.1093/forestry/cpab007.

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Abstract In this study we investigated the behaviour of aggregate prediction errors in a forest inventory augmented with multispectral Airborne Laser Scanning and airborne imagery. We compared an Area-Based Approach (ABA), Edge-tree corrected ABA (EABA) and Individual Tree Detection (ITD). The study used 109 large 30 × 30 m sample plots, which were divided into four 15 × 15 m subplots. Four different levels of aggregation were examined: all four subplots (quartet), two diagonal subplots (diagonal), two edge-adjacent subplots (adjacent) and subplots without aggregation. We noted that the errors

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Tjhai, Chandra, and Kyle O’Keefe. "Using Step Size and Lower Limb Segment Orientation from Multiple Low-Cost Wearable Inertial/Magnetic Sensors for Pedestrian Navigation." Sensors 19, no. 14 (July 17, 2019): 3140. http://dx.doi.org/10.3390/s19143140.

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This paper demonstrates the use of multiple low-cost inertial/magnetic sensors as a pedestrian navigation system for indoor positioning. This research looks at the problem of pedestrian navigation in a practical manner by investigating dead-reckoning methods using low-cost sensors. This work uses the estimated sensor orientation angles to compute the step size from the kinematics of a skeletal model. The orientations of limbs are represented by the tilt angles estimated from the inertial measurements, especially the pitch angle. In addition, different step size estimation methods are compared.

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Bédard, Joël, Jean-François Caron, Mark Buehner, Seung-Jong Baek, and Luc Fillion. "Hybrid Background Error Covariances for a Limited-Area Deterministic Weather Prediction System." Weather and Forecasting 35, no. 3 (May 6, 2020): 1051–66. http://dx.doi.org/10.1175/waf-d-19-0069.1.

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Abstract This study introduces an experimental regional assimilation configuration for a 4D ensemble–variational (4D-EnVar) deterministic weather prediction system. A total of 16 assimilation experiments covering July 2014 are presented to assess both experimental regional climatological background error covariances and updates in the treatment of flow-dependent error covariances. The regional climatological background error covariances are estimated using statistical correlations between variables instead of using balance operators. These error covariance estimates allow the analyses to fit m

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Ruiz-Arias, J. A., J. Dudhia, C. A. Gueymard, and D. Pozo-Vázquez. "Assessment of the Level-3 MODIS daily aerosol optical depth in the context of surface solar radiation and numerical weather modeling." Atmospheric Chemistry and Physics Discussions 12, no. 9 (September 7, 2012): 23219–60. http://dx.doi.org/10.5194/acpd-12-23219-2012.

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Abstract. The Level-3 MODIS aerosol optical depth (AOD) product offers interesting features for surface solar radiation and numerical weather modeling applications. Remarkably, the Collection 5.1 dataset extends over more than a decade, and provides daily values of AOD over a global regular grid of 1°×1° spatial resolution. However, most of the validation efforts so far have focused on Level-2 products (10-km, at original resolution) and only rarely on Level-3 (at aggregated spatial resolution of 1°×1°). In this contribution, we compare the Level-3 Collection 5.1 MODIS AOD dataset available si

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Bookbinder, M. J., and K. J. Panosian. "Correct and incorrect estimation of within-day and between-day variation." Clinical Chemistry 32, no. 9 (September 1, 1986): 1734–37. http://dx.doi.org/10.1093/clinchem/32.9.1734.

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Abstract Between-day variance is an ambiguous term representing either total variance or pure between-day variance. In either case, it is often incorrectly calculated even though analysis of variance (ANOVA) and other excellent methods of estimation are available. We used statistical theory to predict the magnitude of error expected from using several intuitive approaches to estimation of variance components. We also evaluated the impact of estimating the total population variance instead of pure between-day variance and the impact of using biased estimators. We found that estimates of varianc

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Vishwakarma, Pradeep Kumar, Arun Kaushik, Aakriti Pandey, Umesh Singh, and Sanjay Kumar Singh. "Bayesian Estimation for Inverse Weibull Distribution Under Progressive Type-II Censored Data With Beta-Binomial Removals." Austrian Journal of Statistics 47, no. 1 (January 30, 2018): 77–94. http://dx.doi.org/10.17713/ajs.v47i1.578.

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This paper deals with the estimation procedure for inverse Weibull distribution under progressive type-II censored samples when removals follow Beta-binomial probability law. To estimate the unknown parameters, the maximum likelihood and Bayes estimators are obtained under progressive censoring scheme mentioned above. Bayes estimates are obtained using Markov chain Monte Carlo (MCMC) technique considering square error loss function and compared with the corresponding MLE's. Further, the expected total time on test is obtained under considered censoring scheme. Finally, a real data set has been

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