Results 41 to 50 of about 76,919 (275)

Developing the composed probability model to predict household trip production (a case study of Isfahan city) [PDF]

open access: yesTransport, 2009
Household trip production is not a constant parameter and vary based on socio-economic characteristics. Even households produce several numbers of trips in each category (households with constant socio-economic characteristics).
A. M. Khaki   +2 more
doaj   +3 more sources

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello   +7 more
wiley   +1 more source

Subclass of analytic functions related with Miller-Ross-type Poisson distribution series [PDF]

open access: yesMathematica Bohemica
The purpose of the present paper is to find a necessary and sufficient condition for the Miller-Ross-type Poisson distribution series to be in the class $\mathcal{P}^{\ast}(\alpha,\beta,\gamma)$ of analytic functions with negative coefficients.
Basem Aref Frasin
doaj   +1 more source

PERSAMAAN DIFERENSIAL ORNSTEIN-UHLENBECK DALAM PERAMALAN HARGA SAHAM

open access: yesMedia Statistika, 2020
Geometric Brownian motion is one of the most widely used stock price model. One of the assumptions that is filled with stock return volatility is constant. Gamma Ornstein-Uhlenbeck process a model to describe volatility in finance.
Amam Taufiq Hidayat, Subanar Subanar
doaj   +1 more source

On Underdispersed Count Kernels for Smoothing Probability Mass Functions

open access: yesStats, 2023
Only a few count smoothers are available for the widespread use of discrete associated kernel estimators, and their constructions lack systematic approaches. This paper proposes the mean dispersion technique for building count kernels.
Célestin C. Kokonendji   +3 more
doaj   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim   +3 more
wiley   +1 more source

Properties of the entropic risk measure EVaR in relation to selected distributions

open access: yesModern Stochastics: Theory and Applications
Entropic Value-at-Risk (EVaR) measure is a convenient coherent risk measure. Due to certain difficulties in finding its analytical representation, it was previously calculated explicitly only for the normal distribution.
Yuliya Mishura   +3 more
doaj   +1 more source

The process of item nonresponse in a questionnaire survey and its individual differences

open access: yesJournal of Human Environmental Studies, 2021
The relationship between the occurrence of item nonresponse and individual characteristics in questionnaire surveys can cause bias in parameter estimation.
Daisuke Shimada, Kentaro Katahira
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

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