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.
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.
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.
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.
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.
Study of modeling of L/LHFSLM equilibrium based on the Non-ideality of the Aqueous and Organic Phases in the Recovery of 152+154Eu in H2SO4-Halides/Aliquat-336 in 20% kerosene as feeding phase at pH ...3.78–4.55, by the ratio 89.7%,while separation of 90Sr and 134Cs there was a problem between them by using hollow HFSLM only, the reason for that the organic solvents affect the rate of reaction in the Diamino-1,2-cyclohexane/tetraacetic acid (DCTA) as stripping phase concentration from 0.15 to 0.55 mol/L. The system has been developed; this led to the extraction of elements in the same time. The Matlab software program was introduced to obtain some mathematical parameters like, standard deviation (SD), equilibrium constant Kex and standard deviation coefficient (SDC).
•This work indicates the new liquid-liquid membrane technique, hollow fiber regeneration, liquid membrane (L/LHFRSLM), is used for simultaneous extracting and concentrating radionuclide species from sulfate/halide solutions.•This work is classified into three parts (i): theoretical basis for extraction equilibrium (ii): extraction of these cations by the extracts in different diluents (iii): extracting of radionuclide species, by different extractants from various medium.•A similar synergistic effect dependent on standard deviation (SD) also appears in the extraction of the radionuclides ions.
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