Results 311 to 320 of about 8,179,783 (370)

Modelling of expansion ratio and half-life of foamed bitumen using gene expression programming

International Journal of Pavement Engineering, 2019
A typical foamed bituminous mixture design process involves production and evaluation of foamed bitumen over a range of foaming temperatures and water contents.
Abhary Eleyedath, Siksha Swaroopa Kar, A. Swamy   +2 more
semanticscholar   +1 more source

Programmable Mechanical Metamaterials with Tailorable Negative Poisson's Ratio and Arbitrary Thermal Expansion in Multiple Thermal Deformation Modes.

ACS Applied Materials and Interfaces, 2022
Mechanical metamaterials pave a way for designing and optimizing microstructure topology to achieve counterintuitive deformation including negative Poisson's ratio (NPR) and negative thermal expansion (NTE). Previous studies were always limited to single
Yisong Bai, Chuanbao Liu, Yang Li, Jinxu Li, L. Qiao, Ji Zhou, Yang Bai   +6 more
semanticscholar   +1 more source

Bifunctional Metamaterials Incorporating Unusual Geminations of Poisson's Ratio and Coefficient of Thermal Expansion.

ACS Applied Materials and Interfaces, 2022
Natural materials overwhelmingly shrink laterally under stretching and expand upon heating. Through incorporating Poisson's ratio and coefficient of thermal expansion (PR and CTE) in unusual geminations, such as positive PR and negative CTE, negative PR ...
Zhengtong Han, Xiaoyujie Xiao, Jiaxin Chen, Kai Wei, Zhonggang Wang, Xujing Yang, D. Fang   +6 more
semanticscholar   +1 more source

Asymptotic Expansions in a Sequential Likelihood Ratio Test

Theory of Probability & Its Applications, 1988
See the review in Zbl 0622.62081.
openaire   +1 more source

Expansions of the likelihood ratio and applications

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
The likelihood ratio receiver, although optimal, is oftentimes difficult to realize. To overcome this difficulty, suboptimal approximations have been studied in the past. One of the simplest approaches is to expand the likelihood ratio and truncate this expansion under the weak signal assumption.
openaire   +1 more source

Continued-fraction expansions for ratios of generalized polynomials

Applied Mathematics and Computation, 1980
Continued-fraction expansions of Stieltjes and second Cauer from are considered for a ratio of polynomials expressed relative to an arbitrary real orthogonal polynomials basis. Simple tabular arrays are developed for obtaining the coefficients in the expansions. Inverse procedures are also obtained.
Maroulas, John, Barnett, Stephen
openaire   +2 more sources

The threshold expansion ratio of water vapour

Physica, 1947
Abstract The threshold expansion pressure ratio for condensation on ions resp. spontaneous condensation Ep1 and Ep2 are determined, applying an expansion to a fixed pressure, Ep being the ratio of the pressure before and after the expansion. The result is Ep1 = 0.741 ± 0.001, Ep2 = 0.716 ± ± 0.002.
openaire   +1 more source

Asymptotic expansions for the ratio of gamma functions

Carpathian Journal of Mathematics, 2014
The main object of this paper is to establish a class of the asymptotic expansions for the ratio of gamma functions ..., by mainly using Bell polynomials and the partition function. This unifies several approximation formulas for the ratio of gamma functions due to Mortici.
CHAO-PING CHEN, LONG LIN
openaire   +1 more source

Local Normal-Force Ratio Around an Expansion Corner

Journal of the Aerospace Sciences, 1961
STUDY of the local normal-force ratio around an expansion corner of a lifting body reveals that, for certain Mach numbers and body shapes, completely isentropic calculations may differ considerably from rotational-flow results. In as­ suming isentropic flow, the effects of the entropy gradient around the body due to an axially asymmetrical shock wave ...
Joseph L. Sims, Lee M. Saunders
openaire   +1 more source

Influence of tensile properties on hole expansion ratio investigated using a generative adversarial imputation network with explainable artificial intelligence

Journal of Materials Science, 2023
Jeong Ah Lee, Jaejung Park, Yeon Taek Choi, Rae-Eon Kim, Jaimyun Jung, Seungchul Lee, M. Seo, Hyoung-Seop Kim   +7 more
semanticscholar   +1 more source