Lath-shaped Mg2Sn precipitates with their habit planes parallel to the prismatic planes of the Mg matrix are characterized in a MgaSnaZnaMn alloy. The orientation relationships (ORs) between these ...I2-Mg2Sn precipitates and I--Mg matrix are 0 1 1I2//0 1 a1 0I- and (0 1 a1)I2 deviating 0.36ADG to 1.20ADG from (0 0 0 1)I-, in which the deviation angle of 0.39ADG is most frequently observed. Although the ORs vary, the laths always exhibit four side facets bearing fixed relationships with g vectors in reciprocal space. Their major side facets incline to the basal plane of Mg matrix from 4.3ADG to 14.3ADG.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Abstract In this work changes of the inclinations values (in a horizontal plane) of a land surface and two buildings have been shown. They were induced by an operation of the 404 and the 405 coal ...beds located successively on the level of 490 m and 550 m, and realized on a south of the buildings (the South of Poland) by the use of five longwalls. Values of inclinations from the results of the geodesic measurements done in August 2019 have been determined. Subsidence and distances between neighbouring points (on a land surface and on the buildings’ walls) have been observed. Observations in two perpendicular directions, on 24 points (12 ground points and 12 wall points) have been conducted. Research results indicate that deviations are different for a ground and the buildings. It means that a process of deformation of the buildings and a terrain surface takes place differently. Moreover, the ground steps which occurred near the buildings (one in front of the first building, the other under the second building) cause anomalies in the inclinations values and changes in their directions and turns.
A survey revealed that researchers still seem to encounter difficulties to cope with outliers. Detecting outliers by determining an interval spanning over the mean plus/minus three standard ...deviations remains a common practice. However, since both the mean and the standard deviation are particularly sensitive to outliers, this method is problematic. We highlight the disadvantages of this method and present the median absolute deviation, an alternative and more robust measure of dispersion that is easy to implement. We also explain the procedures for calculating this indicator in SPSS and R software.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
In centralized mechanisms and platforms, participants do not fully observe each others' type reports. Hence, if there is a deviation from the promised mechanism, participants may be unable to detect ...it. We formalize a notion of auditabilty that captures how easy or hard it is to detect deviations from a mechanism. We find a stark contrast between the auditabilities of prominent mechanisms. We also provide tight characterizations of maximally auditable classes of allocation mechanisms.
We study the sharp large deviation for the energy of α-Brownian bridge. The full expansion of the tail probability for energy is obtained by the change of measure.
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FZAB, GIS, IJS, IZUM, KILJ, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBMB, UL, UM, UPUK
Abstract
“Two pins on one side” is a common clamping method in industrial production, but due to the presence of hole/pin clearance, mounting features on the part are often misaligned due to hole/pin ...float. To ensure the subsequent assembly of the part, the amount of deviation of the hole/pin float must be calculated to quantify the effective mounting space of the mounting feature. In this study, based on the hole/pin float model, the maximum deviations of 0.0368 mm, 0.0545 mm, 0.0520 mm, and 0.0786 mm were calculated for hole/pin float based on automotive sheet metal parts. The study of the amount of deviation of hole/pin floating is carried out to give a solution to the problem of fixture design in engineering practice.
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This is the final report of CCT-K7.2021 key comparison of water-triple-point (TPW) cells. The primary objective of CCT-K7.2021 was a comparison of the participant national realizations of ...the TPW temperature. Each participant laboratory selected one of its TPW cells for use as a transfer cell, directly compared it against its national reference and delivered it to the pilot (NRC). The pilot then compared all transfer cells against two NRC reference cells and, finally, each participant laboratory retrieved its transfer cell and directly re-compared it against its TPW national reference. The initial measurements at the participant laboratories were started in April 2021. The final measurements at the participants' laboratories were completed in September 2022. The final report was approved by the CCT WG-KC in April 2023. The adaptive weighted average procedure was adopted to compute the Key Comparison Reference Value (KCRV) and the degrees of equivalence (DoEs) were reported for the participant laboratories. The maximum difference between two transfer cells was 92 μK with a standard deviation of 26 µK (almost a factor of two improvement compared to CCT-K7 results (2002-2004). The maximum difference between two TPW national realizations was 111 µK, with a standard deviation of 28 µK (improvement similar to the one reported for the transfer cells). While the pooled distribution of CCT-K7 results was bimodal, indicating the presence of two different sub-populations (the population of laboratories that referred to ocean water definition and the population of laboratories that did not consider it), the pooled distribution of CCT-K7.2021 results was no longer bimodal, but slightly asymmetrical, indicating a more harmonized approach to water isotopic corrections.
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The final report has been peer-reviewed and approved for publication by the CCT, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Objective: Mean amplitude of glucose excursion (MAGE) obtained from the CGMS is considered a gold standard of glycemic variability (GV). However, the implications of CGMS in routine clinical practice ...are limited due to its high cost and complexity. This study thus designed to explore whether the GV indices calculated from the more common measurement SMBG can be used to reflect MAGE in T2D patients.
Methods: T2D patients simultaneously underwent a 48-h to 72-h CGM and fingertip blood glucose self-monitoring were included. The GV indices calculated from the 7-point SMBG data (pre- and post- breakfast, lunch and dinner and prior to bedtime) were the means of the following indices during CGM period: the standard deviation (SD) of the 7-point glucose profiles, the largest amplitude of glycemic excursions (LAGE, the difference between the daily maximum and minimum glycemic values) and the mean postprandial glucose excursion (MPPGE, the mean value of the differences between each postprandial and preprandial blood glucose).
Results: Seventy-eight T2D patients (43.6% male, median age: 62 years, median BMI: 23.83 kg/m2) were included. The mean MAGE, SD, LAGE and MPPGE were 4.11, 2.03, 5.66, 2.57mmol/L, respectively. SD, LAGE and MPPGE were significantly correlative with MAGE (r= 0.625, 0.488 and 0.599, respectively; all P<0.05). In the linear regression analysis, significant relationships were shown between MAGE and SD, LAGE and MPPGE (R2=0.391, 0.359, 0.238, respectively; all P<0.001). The area under the ROC curve for SD (0.809, 95% CI: 0.712-0.906, P<0.05) was superior to that for LAGE (0.793, 95% CI: 0.692-0.894, P<0.05) and MPPGE (0.704, 95% CI: 0.588-0.820, P<0.05) in reflecting MAGE.
Conclusions: The GV indices calculated from the SMBG data including SD, LAGE and MPPGE are positively correlated with MAGE obtained from CGM. Among these indices, SD of the 7-point SMBG glucose profiles seems to be a better GV index to reflect MAGE.
Disclosure
Z. Liu: None. B. Lin: None. W. Xu: None. L. Gong: None. X. Yang: None. B. Yao: None.
Funding
National Key Research and Development Program of China (2016YFC1304801)
Researchers increasingly use meta-analysis to synthesize the results of several studies in order to estimate a common effect. When the outcome variable is continuous, standard meta-analytic ...approaches assume that the primary studies report the sample mean and standard deviation of the outcome. However, when the outcome is skewed, authors sometimes summarize the data by reporting the sample median and one or both of (i) the minimum and maximum values and (ii) the first and third quartiles, but do not report the mean or standard deviation. To include these studies in meta-analysis, several methods have been developed to estimate the sample mean and standard deviation from the reported summary data. A major limitation of these widely used methods is that they assume that the outcome distribution is normal, which is unlikely to be tenable for studies reporting medians. We propose two novel approaches to estimate the sample mean and standard deviation when data are suspected to be non-normal. Our simulation results and empirical assessments show that the proposed methods often perform better than the existing methods when applied to non-normal data.
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NUK, OILJ, SAZU, UKNU, UL, UM, UPUK
Expression of concern for 'Surface-dependent band structure variations and bond deviations of GaN' by Chih-Shan Tan
et al.
,
Phys. Chem. Chem. Phys.
, 2022,
24
, 9135-9140,
...https://doi.org/10.1039/D2CP00100D
.
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