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Journal articles on the topic 'Working accuracy'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Khan, Ghulam Ishaq, Muhammad Talha Khan, Saroosh Ehsan, Anam Fayyaz, Haider Amin Malik, and Shafqat Hussain. "Accuracy of Working Length Measured by Apex Locator and Digital Radiography." Journal of the Pakistan Dental Association 30, no. 1 (February 15, 2021): 24–28. http://dx.doi.org/10.25301/jpda.301.24.

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OBJECTIVE: The objective of this study was to compare the measurements of electronic and radiographic method of working lengths calculation with actual working length of root canals. Precise working length determination is the most important part for successful root canal procedure. The most commonly used methods to determine the working length in root canal treatment are radiography and electronic apex locator. METHODOLOGY: A cross sectional study was done over a period of 06 months in the Department of Operative Dentistry, Fatima Memorial Hospital, Lahore. Sixty patients who were recommended extraction of their premolar teeth with sixty canals were selected by convenience sampling. The Root ZX* apex locator was used to determine electronic working length exactly identifying the apical constriction. Reference points were identified and radiographic working length were determined 1mm short of radiographic apex. The teeth were extracted along with file cemented before extraction inside root canal. The actual length of the root canal was then calculated using the same files and reference point with 3.5X magnification. Pearson chi square test was applied to compare the apex locator and digital radiographic measurement with actual working length. RESULTS: The Root ZX® apex locator was 95% accurate to identify the apical constriction as compared 70% accuracy given by radiographs within 0.5 mm of the apex. CONCLUSION: Electronic apex locator was more accurate as compared to digital radiography in working length determination. KEYWORDS: Working length (WL), Electronic apex locators (EAL), Radiographic working length(RWL), Apical constriction (AC) HOW TO CITE: Khan GI, Khan MT, Ehsan S, Fayyaz A, Malik HA, Hussain S. Accuracy of working length measured by apex locator and digital radiography. J Pak Dent Assoc 2021;30(1):24-28.

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2

OGAWA, Hideo. "Accuracy Improvement for Sheet Metal Working." Journal of the Japan Society for Technology of Plasticity 48, no. 563 (2007): 1082–86. http://dx.doi.org/10.9773/sosei.48.1082.

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3

Hennige, T., S. Holzer, F. Vollertsen, and M. Geiger. "On the working accuracy of laser bending." Journal of Materials Processing Technology 71, no. 3 (November 1997): 422–32. http://dx.doi.org/10.1016/s0924-0136(97)00108-8.

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4

Hoer, D., and T. Attin. "The accuracy of electronic working length determination." International Endodontic Journal 37, no. 2 (February 2004): 125–31. http://dx.doi.org/10.1111/j.0143-2885.2004.00764.x.

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5

Domrachev, V. G., V. M. Isaev, and B. S. Meiko. "Accuracy over working life in angle digitizers." Measurement Techniques 31, no. 6 (June 1988): 524–27. http://dx.doi.org/10.1007/bf00867517.

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6

Higuchi, Daisuke. "The Accuracy of Working Casts for ITI Implants." Nihon Hotetsu Shika Gakkai Zasshi 40, no. 4 (1996): 660–71. http://dx.doi.org/10.2186/jjps.40.660.

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7

Meyer, Meghan L., and Matthew D. Lieberman. "Social Working Memory Training Improves Perspective-Taking Accuracy." Social Psychological and Personality Science 7, no. 4 (January 11, 2016): 381–89. http://dx.doi.org/10.1177/1948550615624143.

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8

Adachi, Tatsuya. "Improving accuracy of electronic components in press-working." Journal of Materials Processing Technology 22, no. 3 (September 1990): 277–90. http://dx.doi.org/10.1016/0924-0136(90)90017-o.

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9

Spanu, Alina, Mihai Avram, and Daniel Besnea. "Improving the Image Accuracy for Grasping." Applied Mechanics and Materials 658 (October 2014): 706–11. http://dx.doi.org/10.4028/www.scientific.net/amm.658.706.

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The paper concerns with a method based on Microsoft Visual Studio for processing the image received from the vision camera working on the gripper of the librarian robot. Based on the information converted from the accurate image, the gripper has to identify the book on the bookshelves. Moreover, the outer edges are the most important due to the working area required by the fingers. Meantime, the method should analyze the outer edge on the top too, so that the gripper should have enough room for working by pushing up the book. We have used the dynamic method for setting aside the computer memory. The image processing was focused on improving the contrast quality due to its importance for setting up the outer edges of the book, which should be retrieved.

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10

FUJII, Yoshiya, and Hiroyasu IWABE. "Influence of deflected chuck and collet on working accuracy." Journal of the Japan Society for Precision Engineering 52, no. 2 (1986): 273–78. http://dx.doi.org/10.2493/jjspe.52.273.

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11

Yano, Akisige, Masahiro Higuchi, and Masanori Takuma. "On the Improvement of Working Accuracy by Fuzzy Control." Journal of the Japan Society for Precision Engineering 57, no. 7 (1991): 1283–88. http://dx.doi.org/10.2493/jjspe.57.1283.

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12

Tsiba, T. E., and V. V. Shevchenko. "INCREASING THE ACCURACY OF PARTS WORKING IN AUTOMATIC MANUFACTURING." Scientific notes of Taurida National V.I. Vernadsky University. Series: Technical Sciences 6, no. 1 (2019): 169–73. http://dx.doi.org/10.32838/2663-5941/2019.6-1/31.

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13

Gogulski, Juha, Rasmus Zetter, Mikko Nyrhinen, Antti Pertovaara, and Synnöve Carlson. "Neural Substrate for Metacognitive Accuracy of Tactile Working Memory." Cerebral Cortex 27, no. 11 (August 28, 2017): 5343–52. http://dx.doi.org/10.1093/cercor/bhx219.

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14

Takita, Masatoshi, Ryu Kato, and Hiroshi Yokoi. "Working Memory Accuracy Micro-controlled through a Tablet Pen." IEEJ Transactions on Electronics, Information and Systems 140, no. 5 (May 1, 2020): 502–7. http://dx.doi.org/10.1541/ieejeiss.140.502.

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15

Pravotorova, E. A., and V. A. Chudov. "Sign-dependent adaptive algorithms of metal working accuracy control." Measurement Techniques 33, no. 8 (August 1990): 785–88. http://dx.doi.org/10.1007/bf00976155.

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16

Chalmers, Kerry A., and Emily E. Freeman. "Working Memory Power Test for Children." Journal of Psychoeducational Assessment 37, no. 1 (September 15, 2017): 105–11. http://dx.doi.org/10.1177/0734282917731458.

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Low working memory (WM) capacity has been linked to poor academic performance and problem behavior. Availability of easy-to-administer screening tests would facilitate early detection of WM deficits. This study investigated the psychometric properties of the Working Memory Power Test for Children (WMPT) in 170 Australian schoolchildren (8½-11 years). Reliability (internal consistency) and validity of WMPT accuracy scores were examined. WMPT accuracy predicted achievement in reading, numeracy, and spelling. The results provide preliminary evidence of reliability and validity that supports interpretation of the WMPT accuracy score. With additional research, the WMPT could be valuable as an easy-to-administer screener for WM deficits.

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17

Bigozzi, Lucia, Chiara Malagoli, Chiara Pecini, Sara Pezzica, Claudio Vezzani, and Giulia Vettori. "Attention Components and Spelling Accuracy: Which Connections Matter?" Children 8, no. 7 (June 24, 2021): 539. http://dx.doi.org/10.3390/children8070539.

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Attention and working memory are cross-domain functions that regulate both behavioural and learning processes. Few longitudinal studies have focused on the impact of these cognitive resources on spelling skills in the early phase of learning to write. This longitudinal study investigates the contributions of attention and working memory processes to spelling accuracy and handwriting speed in 112 primary school children (2nd, 3rd, and 4th grade; age range: 7.6–9.4 years) learning to write in the Italian transparent orthography. Standardised batteries were used to assess their attention and working memory skills, as well as their spelling. Homophone and non-homophone errors were measured, as they may involve different attentional and working memory processes. The results showed that, for 2nd grade children, selective attention shifting, planning, and inhibition predicted non-homophone errors, whereas sequential working memory predicted homophone errors and writing speed was explained by planning and selective attention. In 3rd grade, only homophone errors were predicted by planning and inhibition. No significant relationships were found in 4th grade, nor in the transition across grades. Dynamic and diversified roles of attentional and working memory processes in predicting different writing skills in early primary school years emerged, with a gradual decrease in the attention–writing relationship with age.

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18

Zeng, Jun, and Qinsheng Li. "Research on Prediction Accuracy of Coal Mine Gas Emission Based on Grey Prediction Model." Processes 9, no. 7 (June 30, 2021): 1147. http://dx.doi.org/10.3390/pr9071147.

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In order to achieve the accuracy of gas emission prediction for different workplaces in coal mines, three coal mining workings and four intake and return air roadway of working face in Nantun coal mine were selected for the study. A prediction model of gas emission volume based on the grey prediction model GM (1,1) was established. By comparing the predicted and actual values of gas emission rate at different working face locations, the prediction error of the gray prediction model was calculated, and the applicability and accuracy of the gray prediction method in the prediction of gas gushing out from working faces in coal mines were determined. The results show that the maximum error between the predicted and actual measured values of the gray model is 2.41%, and the minimum value is only 0.07%. There is no significant prediction error over a larger time scale; the overall prediction accuracy is high. It achieves the purpose of accurately predicting the amount of gas gushing from the working face within a short period of time. Consequently, the grey prediction model is of great significance in ensuring the safety production of coal mine working face and promote the safety management of coal mine.

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19

Potran, Michal, Branko Strbac, Tatjana Puskar, Miodrag Hadzistevic, Janko Hodolic, and Branka Trifkovic. "Measurement of the accuracy of dental working casts using a coordinate measuring machine." Vojnosanitetski pregled 73, no. 10 (2016): 895–903. http://dx.doi.org/10.2298/vsp150105089p.

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Background/Aim: Dental impressions present a negative imprint of intraoral tissues of a patient which is, by pouring in gypsum, transferred extraorally on the working cast. Casting an accurate and precise working cast presents the first and very important step, since each of the following stages contributes to the overall error of the production process, which can lead to inadequately fitting dental restorations. The aim of this study was to promote and test a new model and technique for in vitro evaluation of the dental impression accuracy, as well as to asses the dimensional stability of impression material depending on the material bulk, and its effect on the accuracy of working casts. Methods. Impressions were made by the monophasic technique using the experimental master model. Custom trays with spacing of 1, 2 and 3 mm were constructed by rapid prototyping. The overall of 10 impressions were made with each custom tray. Working casts were made with gypsum type IV. Measurement of working casts was done 24 h later using a co-ordinate measuring machine. Results. The obtained results show that the working casts of all the three custom trays were in most cases significantly different in the transversal and sagittal planes in relation to the master model. The height of abutments was mainly unaffected. The degree of convergence showed certain significance in all the three custom trays, most pronounced in the tray with 3 mm spacing. Conclusion. The impression material bulk of 1?3 mm could provide accurate working casts when using the monophasic impression technique. The increase of the distance between abutment teeth influences the accuracy of working casts depending on the material bulk.

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20

Ito, Michihiro, Akiyoshi Shinya, and Shigeo Yokozuka. "Working Accuracy of CAD/CAM Crown Restorations with Material Cuts." Nihon Hotetsu Shika Gakkai Zasshi 43, no. 3 (1999): 614–25. http://dx.doi.org/10.2186/jjps.43.614.

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21

Hagiwara, Yoshiyuki, Masayuki Koizumi, and Takayoshi Igarashi. "The Accuracy of Implant Working Models. Part 1. IMZ Implant." Nihon Hotetsu Shika Gakkai Zasshi 37, no. 4 (1993): 678–86. http://dx.doi.org/10.2186/jjps.37.678.

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22

Mohan, Dr G. Midhun. "Accuracy of Different Methods of Working Length Determination in Endodontics." IOSR Journal of Dental and Medical Sciences 12, no. 4 (2013): 25–38. http://dx.doi.org/10.9790/0853-1242538.

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23

IWABE, Hiroyasu, and Hiroshi MITSUBOSHI. "Influence of Eccentricity of Helical End Mill on Working Accuracy." Journal of the Japan Society for Precision Engineering 61, no. 6 (1995): 834–38. http://dx.doi.org/10.2493/jjspe.61.834.

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24

Li, Hong. "Research on Accuracy of Abrasive Belt Grinding." Applied Mechanics and Materials 101-102 (September 2011): 1101–4. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.1101.

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The experiment on slender shaft open-cycle belt grinding process is conducted in this paper. The research objects are dimensional accuracy and deviation from roundness error, the changes of which are emphasized after the belt grinding. And the factors affecting the working accuracy of the belt grinding are analyzed. Some measures for improving working accuracy of the belt grinding are put forward. Research result shows that by installing a belt grinding device on a lathe to grind the slender shafts can improve the accuracy with high efficiency.

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25

Shah, Nitin, Sarita Singh, Jyoti Mandlik, Kalpana Pawar, Paras Gupta, and Shoaib Ali Shaik. "An in vivo Evaluation of Different Methods of Working Length Determination." Journal of Contemporary Dental Practice 14, no. 4 (2013): 644–48. http://dx.doi.org/10.5005/jp-journals-10024-1378.

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ABSTRACT Objective The purpose of this in vivo study was to compare the ability of digital tactile, digital radiographic and electronic methods to determine reliability in locating the apical constriction. Materials and methods Informed consent was obtained from patients scheduled for orthodontic extraction. The teeth were anesthetized, isolated and accessed. The canals were negotiated, pulp chamber and canals were irrigated and pulp was extirpated. The working length was then evaluated for each canal by digital tactile sensation, an electronic apex locator (The Root ZX) and digital radiography. The readings were then compared with post-extraction working length measurements. Results The percentage accuracy indicated that EAL method (Root ZX) shows maximum accuracy, i.e. 99.85% and digital tactile and digital radiographic method (DDR) showed 98.20 and 97.90% accuracy respectively. Clinical significance Hence, it can be concluded that the EAL method (Root ZX) produced most reliable results for determining the accurate working length. How to cite this article Mandlik J, Shah N, Pawar K, Gupta P, Singh S, Shaik SA. An in vivo Evaluation of Different Methods of Working Length Determination. J Contemp Dent Pract 2013;14(4):644-648.

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26

Yin, Rong Sen, and Jia Qiang Yang. "A Dynamic Voltage Compensation Method for Improving Weighing Accuracy." Applied Mechanics and Materials 333-335 (July 2013): 317–21. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.317.

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In order to eliminate the measurement error caused by working voltage fluctuation of weighing sensor, a dynamic voltage compensation method for improving the weighing accuracy was proposed in the paper. The method takes strain gauge type pressure sensor as the weighing sensor and corrects Wheatstone bridge circuit. By synchronously detecting output voltage signal and working voltage of the weighing sensor, the method dynamically compensates the working voltage fluctuation of the weighing sensor, corrects the measurement error caused by the voltage fluctuation of external source and calculates the weight in real time. A weighing system based on the digital signal processor (DSP) was designed. Results of simulation experiment verify the feasibility of the proposed method.

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27

Matsukawa, Tadabumi, and Isamu Matsui. "Working Posture of Tile Work and Accuracy of Width on Joint." Japanese journal of ergonomics 35, no. 1Supplement (1999): 106. http://dx.doi.org/10.5100/jje.35.1supplement_106.

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28

Matsukawa, Tadabumi, and Isamu Matsui. "Working Posture of Tile Work and Accuracy of Width on Joint." Japanese journal of ergonomics 35 (1999): 394–95. http://dx.doi.org/10.5100/jje.35.2supplement_394.

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29

Shirai, Masaki, Akiyoshi Shinya, and Shigeo Yokozuka. "Inner Surface Working Accuracy of Titanium Crowns Milled with CAD/CAM." Nihon Hotetsu Shika Gakkai Zasshi 43, no. 1 (1999): 160–70. http://dx.doi.org/10.2186/jjps.43.160.

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30

Shigeoka, Yuichi, Makoto Shiota, Hidekazu Takahashi, and Fumio Nishimura. "The Accuracy of Implant Working Casts Produced Using the Transfer System." Nihon Hotetsu Shika Gakkai Zasshi 44, no. 5 (2000): 633–42. http://dx.doi.org/10.2186/jjps.44.633.

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31

Katagiri, Shingo, Hiroshi Kamezawa, and Shigeo Yokozuka. "The Accuracy of Working Casts on Osseointegrated Implant (Branemark Implant System)." Nihon Hotetsu Shika Gakkai Zasshi 38, no. 1 (1994): 98–112. http://dx.doi.org/10.2186/jjps.38.98.

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32

Pan, Yi, and Xue Zhang. "Visual working memory enhances target discrimination accuracy with single-item displays." Attention, Perception, & Psychophysics 82, no. 6 (June 2, 2020): 3005–12. http://dx.doi.org/10.3758/s13414-020-02041-y.

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33

Kobak, R. Rogers, and Cindy Hazan. "Attachment in marriage: Effects of security and accuracy of working models." Journal of Personality and Social Psychology 60, no. 6 (1991): 861–69. http://dx.doi.org/10.1037/0022-3514.60.6.861.

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34

Song, Joon-Ki, Kwang-Sig Park, Min-Su Kim, Tae-Yub Kwon, and Min-Ho Hong. "Accuracy comparison between subtractive and additive methods in fabricating working model." Korean Journal of Dental Materials 45, no. 1 (March 31, 2018): 89–96. http://dx.doi.org/10.14815/kjdm.2018.45.1.89.

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35

Swanson, H. Lee, and Wenson Fung. "Working memory components and problem-solving accuracy: Are there multiple pathways?" Journal of Educational Psychology 108, no. 8 (November 2016): 1153–77. http://dx.doi.org/10.1037/edu0000116.

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36

Brown Nielson, Katharine, and Robert DeKeyser. "Working memory and planning time as predictors of fluency and accuracy." Journal of Second Language Studies 2, no. 2 (October 8, 2019): 281–316. http://dx.doi.org/10.1075/jsls.19004.bro.

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Abstract Working memory, which accounts for the ability to process information in the face of interference, is critical to second language acquisition (SLA) and use. The interaction of working memory capacity (WMC) with specific pedagogical interventions is a logical place for empirical SLA research, both to examine the cognitive processes underpinning second language performance and to identify instructional treatments that may serve learners differently based on their WMC. This study considers WMC along with two different types of pre-task planning time (guided and unguided) as predictors of the attempted accuracy and fluency of learners’ discourse. Seventy-two intermediate ESL students from seven classes at a community college participated by completing two different working memory span tasks, as well as two different “There-and-Then” oral story-telling tasks. The treatment condition of the story-telling tasks was manipulated so that learners’ performance could be considered in terms of provision of pre-task planning (+/− planning), type of planning (guided vs. unguided), and order of planning (planning first or planning second). Task order had a clear effect on learners’ production, regardless of the provision of planning time. Guided planning time promoted a focus on attempted accuracy and unguided planning time fostered fluency. Finally, this study indicates that task conditions can affect high- and low-WMC learners in different ways: the former are more likely to comply with complex story-telling instructions, requiring them to focus on grammatical form at the expense of fluency, whereas the latter are less likely to comply with the same instructions.

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37

Connert, T., M. Hülber-J, A. Godt, C. Löst, and A. ElAyouti. "Accuracy of endodontic working length determination using cone beam computed tomography." International Endodontic Journal 47, no. 7 (November 15, 2013): 698–703. http://dx.doi.org/10.1111/iej.12206.

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38

Christie, Andrew, Brenda Costa-Scorse, Mike Nicholls, Peter Jones, and Graham Howie. "Accuracy of working diagnosis by paramedics for patients presenting with dyspnoea." Emergency Medicine Australasia 28, no. 5 (July 10, 2016): 525–30. http://dx.doi.org/10.1111/1742-6723.12618.

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39

Nevel'son, M. S. "Preset metal-working accuracy and metrological support to flexible production systems." Measurement Techniques 29, no. 12 (December 1986): 1125–29. http://dx.doi.org/10.1007/bf00866074.

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40

Saveleva, Olga, Galina Menshikova, Boris Velichkovskiy, and Grigory Bugriy. "The Accuracy of Allocentric and Egocentric Spatial Representations in Working Memory." International Journal of Psychophysiology 168 (October 2021): S204. http://dx.doi.org/10.1016/j.ijpsycho.2021.07.553.

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41

Zand, Vahid, Saeed Rahimi, Paria Davoudi, and Abubakr Afshang. "Accuracy of Working Length Determination using NovApex and Root-ZX Apex Locators: An in vitro Study." Journal of Contemporary Dental Practice 18, no. 5 (2017): 383–85. http://dx.doi.org/10.5005/jp-journals-10024-2051.

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ABSTRACT Introduction This ex vivo study evaluated the accuracy of the Root-ZX electronic apex locator (EAL) (J. Morita, Tokyo, Japan) and the NovApex (Forum Technologies, Rishon Lezion, Israel) in determining the working length (WL) during endodontic treatment. Materials and methods Forty extracted single-rooted human teeth were selected for this study. The actual WL was measured with visual technique by a size #15 k-file under magnification. Then, the canal lengths were measured electronically with both Root-ZX and NovApex apex locators within ±0.5 and ±1 mm. Mean percentage of data was analyzed between groups using paired t-test, with a statistically significant level of p < 0.05. Results The accuracy of NovApex apex locator was 85% within ±0.5 mm and 92.5% within ±1 mm. The accuracy of Root-ZX apex locator was 70% within ±0.5 mm and 97.5% within ±1 mm. There was no significant difference between the accuracy of the two EALs. Conclusion Both the NovApex and Root-ZX EALs are useful for measuring the WL with high accuracy. Clinical significance Given the importance of accurate WL determination in the success of endodontic treatments, the accuracy of different apex locators should be evaluated. How to cite this article Zand V, Rahimi S, Davoudi P, Afshang A. Accuracy of Working Length Determination using NovApex and Root-ZX Apex Locators: An in vitro Study. J Contemp Dent Pract 2017;18(5):383-385.

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42

Yuan, Ying Cai, Yan Li, and Yi Ming Wang. "Study on the Accuracy of Web Offset Press’s Fold Mechanism." Advanced Materials Research 338 (September 2011): 450–55. http://dx.doi.org/10.4028/www.scientific.net/amr.338.450.

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The cutter’s lateral displacement along the paper’s movement is the main reason which causes the folding accuracy problem. The folding stem is deformed in actual working condition, which causes the cutter emerge lateral displacement. The structure of folding stem is complex, it needs the combination of mechanics and finite element analysis to get the fitting formula relation of the folder’s deformation and the loadings. By the dynamic coefficients, which express the relation of loadings between the working velocity and clearances, the cutter’s lateral displacement model is established based on studying the relation of the cutter’s lateral displacement and the folder stem’s deformation. By the model, the folding accuracy is studied in different working velocities and conditions.

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43

Yuan, Shuai, and Ya Bin Wang. "The Environment Temperature Simulation Research of Gyroscope." Advanced Materials Research 328-330 (September 2011): 199–202. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.199.

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The gyros are the key parts in inertial guidance systems. The working accuracy and reliability of the gyros will affect the accuracy of inertial guidance systems directly. Therefore, increasing the working accuracy is a major subject for discussion. There are lots of factors affecting the accuracy. For example, the manufacturing processes, the inner configuration, the working environments and so on. Among of these factors, the larger areas influenced by heating components on gyros, the more negative influences would be made on the accuracy of gyros. For reducing its influences on the temperature distribution on gyro, two axial flow fans are installed among the gyro system. This paper studies the formation process of constant temperature in gyro auto-controlled ontology structure and the simulation technology. The results and methods provide important theoretical and application value for the high design level in the temperature device of gyros and the working accuracy.

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44

Phillips, P. Jonathon, Amy N. Yates, Ying Hu, Carina A. Hahn, Eilidh Noyes, Kelsey Jackson, Jacqueline G. Cavazos, et al. "Face recognition accuracy of forensic examiners, superrecognizers, and face recognition algorithms." Proceedings of the National Academy of Sciences 115, no. 24 (May 29, 2018): 6171–76. http://dx.doi.org/10.1073/pnas.1721355115.

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Achieving the upper limits of face identification accuracy in forensic applications can minimize errors that have profound social and personal consequences. Although forensic examiners identify faces in these applications, systematic tests of their accuracy are rare. How can we achieve the most accurate face identification: using people and/or machines working alone or in collaboration? In a comprehensive comparison of face identification by humans and computers, we found that forensic facial examiners, facial reviewers, and superrecognizers were more accurate than fingerprint examiners and students on a challenging face identification test. Individual performance on the test varied widely. On the same test, four deep convolutional neural networks (DCNNs), developed between 2015 and 2017, identified faces within the range of human accuracy. Accuracy of the algorithms increased steadily over time, with the most recent DCNN scoring above the median of the forensic facial examiners. Using crowd-sourcing methods, we fused the judgments of multiple forensic facial examiners by averaging their rating-based identity judgments. Accuracy was substantially better for fused judgments than for individuals working alone. Fusion also served to stabilize performance, boosting the scores of lower-performing individuals and decreasing variability. Single forensic facial examiners fused with the best algorithm were more accurate than the combination of two examiners. Therefore, collaboration among humans and between humans and machines offers tangible benefits to face identification accuracy in important applications. These results offer an evidence-based roadmap for achieving the most accurate face identification possible.

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45

León-López, María, Daniel Cabanillas-Balsera, Victoria Areal-Quecuty, Jenifer Martín-González, María C. Jiménez-Sánchez, Juan J. Saúco-Márquez, Benito Sánchez-Domínguez, and Juan J. Segura-Egea. "Influence of Coronal Preflaring on the Accuracy of Electronic Working Length Determination: Systematic Review and Meta-Analysis." Journal of Clinical Medicine 10, no. 13 (June 23, 2021): 2760. http://dx.doi.org/10.3390/jcm10132760.

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Aim. To conduct a systematic review and meta-analysis according to the following PICO question: in extracted human permanent teeth, does preflaring, compared with unflared canals, influence the accuracy of WL determination with EAL? Material and Methods. A systematic review was conducted according to the PRISMA checklist, using the following databases: PubMed, Science Direct, Scopus, and Web of Science. Studies related to WL determination using EAL both in preflared and unflared root canals of extracted human teeth were included. The outcome of interest was the accuracy of the electronic WL determination. A quality assessment of the included studies was performed, determining the risk of bias. The meta-analyses were calculated with the 5.4 RevMan software using the inverse variance method with random effects. PROSPERO registration: CRD42021243412. Results. Ten experimental studies fulfilled the inclusion criteria, and most of them found that preflaring increases the accuracy of the EALs in WL determination. The calculated OR was 1.98 (95% CI = 1.65–2.37; p < 0.00001; I2 = 10%), indicating that the determination of WL by EALs is almost twice as accurate in preflared canals. The accuracy of Root ZX in WL determination increases more than three times (OR = 3.25; p < 0.00001). Preflaring with Protaper files significantly increases the accuracy of EALs (OR = 1.76; p < 0.00001). The total risk of bias of the included studies was low. No obvious publication bias was observed. Conclusions. The results indicate a significant increase in the accuracy of WL determination with EAL after preflaring, doubling the percentage of exact measurements. Preflaring should be recommended as an important step during mechanical enlargement of the root canal, not only because it improves the access of the files to the canal, but also because it allows one to obtain more accurate electronic determinations of WL.

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Bashar, AKM, Tanzila Rafique, Ranjit Ghosh, Kamal Abdullah, Mohmood Sajedeen, and Gazi Shamim Hassan. "Clinical Accuracy of Electronic Apex Locator in Measuring Working Length during Root Canal Treatment." Bangladesh Medical Research Council Bulletin 43, no. 3 (April 15, 2018): 120–25. http://dx.doi.org/10.3329/bmrcb.v43i3.36411.

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Obtaining a correct working length is critical to success of endodontic therapy. The procedure for establishment of working length should be performed using techniques that have been proven to give valuable and accurate results and methods that are practical and efficacious. The development of the electronic apex locator has helped to assess the working length more accurate and predictable. So the objective of this in vivo-ex vivo study was to evaluate the clinical accuracy of electronic apex locator in measuring the working length of the root canal in vivo, and comparing the lengths so measured, to the actual working length, ex vivo and after extraction. Electronic apex locator C-Root-I VI (Foshan COXO Medical Instrument Co. China) was used to measure the working length in 100 root canals (one palatal canal and one buccal canal in fifty maxillary 1st premolar) in vivo before extraction, that were scheduled for orthodontic treatment in twenty-five patients. Teeth were then extracted and apical constrictions were identified by careful preparation of the apical 4 mm of all the roots. Actual working lengths were determined by adjusting an endodontic file in the root canal upto the constriction from the coronal reference point. Electronic working lengths obtained in vivo were then compared for coincidence with the actual lengths thus measured after extraction (ex vivo). The data were statistically analysed by a paired Student 't' test and Pearson correlation-coefficient test. In 14 canals out of 100 electronic working lengths (EWL) truly coincided with actual working length (AWL). Eighty two canals out of 100, EWLs were <0.5 mm short in measurement than AWLs but the difference with AWL was statistically insignificant (p >0.01). Only in 4 canals (4%) EWLs were either >0.5mm short or more than AWL, thereby fail to meet the criteria of acceptable range of coincidence (⩽0.5 mm from the apical constriction). On reliability analysis, all (100%) electronic working length significantly correlate with the actual working length (r=0.971). Within a clinically acceptable range of ⩽0.5 mm, C Root I apex locator device showed a high degree of success (96%) in determination of working length during root canal treatment.

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Service, Elisabet. "Phonology, Working Memory, and Foreign-language Learning." Quarterly Journal of Experimental Psychology Section A 45, no. 1 (July 1992): 21–50. http://dx.doi.org/10.1080/14640749208401314.

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Three tasks were used to predict English learning by Finnish children over a three-year period. In the pseudoword repetition task the pupils had to repeat aloud tape-recorded pseudowords sounding like Finnish or English. In the pseudoword copying task the pupils saw strings of letters resembling Finnish or English words and copied them when they had disappeared from view. When comparing syntactic-semantic structures, the pupils had to find the syntactically matching pairs from two sets of Finnish sentences. Repetition and copying accuracy and the ability to compare syntactic-semantic structures predicted English learning. Intercorrelations between test scores and English and mathematics grades suggest that repetition and copying accuracy were specifically related to language learning. It is concluded that the ability to represent unfamiliar phonological material in working memory underlies the acquisition of new vocabulary items in foreign-language learning.

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Wada, Kuniko. "Studies on Dimensional Accuracy of Working Casts Made by Various Impression Techniques. Influence of Undercuts on Dimensional Accuracy." JOURNAL OF THE STOMATOLOGICAL SOCIETY,JAPAN 59, no. 2 (1992): 518–40. http://dx.doi.org/10.5357/koubyou.59.518.

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Holub, Michal, Robert Jankovych, Jan Vetiska, Jan Sramek, Petr Blecha, Jan Smolik, and Petr Heinrich. "Experimental Study of the Volumetric Error Effect on the Resulting Working Accuracy—Roundness." Applied Sciences 10, no. 18 (September 8, 2020): 6233. http://dx.doi.org/10.3390/app10186233.

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Currently, various types of software compensations are applied to machine tools. Their aim is to increase the working accuracy of the tools. The improvement in working accuracy is then further assessed according to the increase in the dimensional and shape accuracy or the surface quality of the workpiece. This publication describes the effects of the volumetric accuracy of a machine tool on the working accuracy of a workpiece, where total roundness (RONt) is evaluated in multiple cuts. In the experiment, two test workpieces are manufactured on a three-axis milling machining centre. The first is made using a standard machine setup while the second with activated volumetric compensation. The LaserTRACER self-tracking laser interferometer is used to compensate for volumetric accuracy. In the second part, verification measurements are performed with a Ballbar, where roundness error is evaluated according to ISO 230-4. Then two test workpieces are machined, and, in the last part, measurement is performed on Talyrond 595S roundness measuring equipment. Finally, the results are analysed and the dependence between the volumetric accuracy, the circularity error of the machine and the working accuracy of the CNC machine tool is established, represented by the RONt of the workpiece. This paper presents new and unpublished relations between the volumetric accuracy of the machine tool and the RONt of the workpiece.

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Zhao, Yan Zhi, Gui Tao Li, Zhi Niu, and Da Cheng Weng. "Analysis of Force Transducer Calibration Accuracy Based on Different Influence Factors." Advanced Materials Research 945-949 (June 2014): 1973–77. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.1973.

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The actual use conditions of force transducer is differences between the factory verification conditions, so based on the structure and working principles, this article is aimed at accurate calibration and proper use of force transducer. Through the CAE simulations and calibration experiments in actual working conditions which are the installation pre-tightening force, structure of fittings and pedestal’s hardness, analyses the output signals of force transducer. Force standard machine was carried out on the calibration experiment to verify the correctness of the numerical simulation. And then the outcomes obtained by numerical simulations and the calibration experiments, it studies the differences of every output performance index of force transducers in different working conditions above-mentioned.

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