Precise Characterization of Macro-texture and Its Correlation with Anti-skidding Performance of Pavement

The crystal structures of the chiolite-related room temperature phases α-Na5M3F14 (MIII=Cr,Fe,Ga) are determined. For all of them, the space group is P21/n, Z=2; a=10.5096(3) Å, b=7.2253(2) Å, c=7.2713(2) Å, β=90.6753(7)° (M=Cr); a=10.4342(7) Å, b=7.3418(6) Å, c=7.4023(6) Å, β=90.799(5)° (M=Fe), and a=10.4052(1) Å, b=7.2251(1) Å, c=7.2689(1), β=90.6640(4)° (M=Ga). Rietveld refinements produce final RF factors 0.036, 0.033, and 0.035, and RWP factors, 0.125, 0.116, and 0.096, for MIII=Cr, Fe, and Ga, respectively. The MF6 polyhedra in the defective isolated perovskite-like layers deviate very few from perfect octahedra. Subtle octahedra tiltings lead to the symmetry decrease from the P4/mnc space group adopted by the Na5Al3F14 chiolite aristotype to the P21/n space group adopted by the title series. Facile twinning precluded till now the precise characterization of these compounds.

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Simple and Precise Characterization of Differential Modal Group Delay arising in Few-Mode Fiber

Optics Letters ◽

10.1364/ol.423950 ◽

2021 ◽

Author(s):

Zhe Fu ◽

Junjie Zhang ◽

Ziheng Zhang ◽

Songnian Fu ◽

Yuwen Qin ◽

...

Keyword(s):

Group Delay ◽

Precise Characterization ◽

Modal Group

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Thin-Film Elemental Analyses for Precise Characterization of Minerals

ACS Symposium Series - Spectroscopic Characterization of Minerals and Their Surfaces ◽

10.1021/bk-1990-0415.ch002 ◽

1990 ◽

pp. 32-53 ◽

Cited By ~ 2

Author(s):

Ian D. R. Mackinnon

Keyword(s):

Thin Film ◽

Elemental Analyses ◽

Precise Characterization

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Conformational dynamics and phase behavior of lipid vesicles in a precisely controlled extensional flow

Soft Matter ◽

10.1039/c9sm02048a ◽

2020 ◽

Vol 16 (2) ◽

pp. 337-347 ◽

Cited By ~ 5

Author(s):

Dinesh Kumar ◽

Channing M. Richter ◽

Charles M. Schroeder

Keyword(s):

Phase Behavior ◽

Phase Diagrams ◽

Direct Observation ◽

Conformational Dynamics ◽

Extensional Flow ◽

Lipid Vesicles ◽

Precise Characterization ◽

Flow Phase

Direct observation of vesicle conformational dynamics in extensional flow and precise characterization of flow phase diagrams using a Stokes trap.

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Tailor-made computational protocols for precise characterization of small biological building blocks using QM and MM approaches

Biopolymers ◽

10.1002/bip.23109 ◽

2018 ◽

Vol 109 (10) ◽

pp. e23109 ◽

Cited By ~ 5

Author(s):

Balasubramanian Chandramouli ◽

Sara Del Galdo ◽

Giordano Mancini ◽

Nicola Tasinato ◽

Vincenzo Barone

Keyword(s):

Building Blocks ◽

Precise Characterization

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Precision Lattice Parameter Measurements with Guinier Camera and Counter Diffractometer: Comparison and Reconciliation of Results

Advances in X-ray Analysis ◽

10.1154/s0376030800012234 ◽

1982 ◽

Vol 26 ◽

pp. 11-24 ◽

Cited By ~ 1

Author(s):

Allan Brown

Keyword(s):

Measurement Errors ◽

Systematic Errors ◽

Lattice Parameter ◽

Precision Measurements ◽

Compound A ◽

X Ray ◽

Random Measurement ◽

Precise Characterization ◽

The Difference

Different procedures used in precision measurements of lattice parameters are, strictly, only valid if they can be shown to give results that are mutually reproducible. For this purpose reproducibility is defined in terms of the parameters a. and standard deviations a. obtained for X-ray specimens of one or more reference materials. The requirement is that all systematic errors should be minimized to a level below that of the random measurement errors. Where these have a Gaussian distribution the significance of the difference, Δa°, between two , measurements can then be Let;Led by evaluating . Thus, if K < 2 the difference, Δa°, cannot be distinguished from the effects of random measurement errors. This condition should be met for specimens of the same sample if reproducibility is good. For K ≥ 3 the value of Δa° is then taken to reflect real differences in the crystalline Jattice of two X-ray specimens of a given compound. A basis is thus created for the study of solid solubility and for the precise characterization of crystalline compounds.

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Measurement of Specific Heat Using Bayesian Inference to Account for Uncertainties in the Calorimeter Performance

Heat Transfer, Volume 1 ◽

10.1115/imece2006-15263 ◽

2006 ◽

Author(s):

A. F. Emery ◽

K. Abernethy

Keyword(s):

Thermal Conductivity ◽

Bayesian Inference ◽

Specific Heat ◽

High Accuracy ◽

Temperature History ◽

Good Precision ◽

Precise Characterization ◽

Transient Conduction ◽

Measured Specific Heat

One way of estimating thermal conductivity is to measure the temperature history for transient conduction. Unfortunately, the property estimated is usually not the conductivity but the thermal diffusivity, α = k/ρcp. While α can often be estimated with good precision, and ρ is usually well defined, the specific heat is often poorly known. As a consequence the uncertainty in the conductivity can be large. This paper reports the use of a calorimeter designed to measure the specific heat with high accuracy. The accuracy depends upon a precise characterization of the thermal performance of the calorimeter. Even when much care is taken, the calorimeter's behavior introduces uncertainty in the measured specific heat. The effects of these uncertainties are accounted for by using Bayesian inference to estimate the confidence intervals of the specific heat.

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Plurals and Mereology

Journal of Philosophical Logic ◽

10.1007/s10992-020-09570-9 ◽

2020 ◽

Author(s):

Salvatore Florio ◽

David Nicolas

Keyword(s):

Plural Logic ◽

Alternative Framework ◽

Philosophical Significance ◽

Precise Characterization

Abstract In linguistics, the dominant approach to the semantics of plurals appeals to mereology. However, this approach has received strong criticisms from philosophical logicians who subscribe to an alternative framework based on plural logic. In the first part of the article, we offer a precise characterization of the mereological approach and the semantic background in which the debate can be meaningfully reconstructed. In the second part, we deal with the criticisms and assess their logical, linguistic, and philosophical significance. We identify four main objections and show how each can be addressed. Finally, we compare the strengths and shortcomings of the mereological approach and plural logic. Our conclusion is that the former remains a viable and well-motivated framework for the analysis of plurals.

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Comparative Evaluation of Compacting Process for Base Materials using Lab Compaction Methods

Transportation Research Record Journal of the Transportation Research Board ◽

10.1177/0361198119837953 ◽

2019 ◽

Vol 2673 (4) ◽

pp. 558-567 ◽

Cited By ~ 2

Author(s):

Xiaoyang Jia ◽

Wei Hu ◽

Pawel Polaczyk ◽

Hongren Gong ◽

Baoshan Huang

Keyword(s):

Dynamic Response ◽

Laboratory Testing ◽

Comparative Evaluation ◽

Laboratory Scale ◽

Dynamic Responses ◽

Comparative Experiment ◽

Base Materials ◽

Superpave Gyratory Compactor ◽

Precise Characterization

Precise characterization of the compactability of aggregates and soils in the laboratory has always been a challenge to pavement technologists. The present study investigated compactability of aggregates and soils through the comparison of three laboratory compaction methods, the Superpave Gyratory Compactor, the Marshall impacting hammer, and a vibratory compacting machine. Accelerometers were attached to the Marshall impacting hammer and a laboratory scale vibratory compactor to capture the dynamic response of soils and aggregates during compaction. The results from this comparative experiment indicated that there was a consistent relationship between the stiffness of soils and aggregates and the dynamic responses from impaction and vibration, which can be used to better characterize the compactability of different paving materials through laboratory testing.

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