Results 41 to 50 of about 1,153,153 (275)

Statistics for traces of cyclic trigonal curves over finite fields [PDF]

, 2009
We study the variation of the trace of the Frobenius endomorphism associated to a cyclic trigonal curve of genus g over a field of q elements as the curve varies in an irreducible component of the moduli space.
Achter, Alina Bucur, Billingsley, Brooke Feigon, Chantal David, Katz, Katz, Kurlberg, Matilde Lalín, Rosen, Stroock, Weil   +11 more
core   +2 more sources

The lifecontingencies Package: Performing Financial and Actuarial Mathematics Calculations in R

Journal of Statistical Software, 2013
It is possible to model life contingency insurances with the lifecontingencies R package, which is capable of performing financial and actuarial mathematics calculations.
Giorgio Alfredo Spedicato
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

The exponentiated generalized power series

Heliyon, 2020
We propose a new generalized family of distributions called the exponentiated generalized power series (EGPS) family of distributions and study its sub-model, the exponentiated generalized logarithmic (EGL) class of distributions, in detail.
Broderick O. Oluyede, B. Mashabe, A. Fagbamigbe, B. Makubate, D. Wanduku   +4 more
doaj   +1 more source

The Equitable Distribution of Opportunity to Learn in Mathematics Textbooks

AERA Open, 2021
Low-income students and students of color are faced with pervasively lower levels of opportunity to learn compared with their peers, creating unequal opportunities for educational success.
Morgan S. Polikoff, Sarah J. Rabovsky, Daniel Silver, Rosalynn Lazar-Wolfe   +3 more
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Systemic Risk and Default Clustering for Large Financial Systems

, 2015
As it is known in the finance risk and macroeconomics literature, risk-sharing in large portfolios may increase the probability of creation of default clusters and of systemic risk.
A Dembo, A Dembo, A Lucas, B Fernandez, C Meinerding, D Duffie, D Duffie, DA Dawson, I Gyöngy, J Bucklew, J Cvitanić, J Garnier, J Gartner, J-C Duan, J-P Fouque, K Giesecke, K Giesecke, K Giesecke, K Spiliopoulos, K Spiliopoulos, L Schloegl, M Freidlin, MB Gordy, N Bush, P Dai Pra, P Dai Pra, P Dupuis, P Dupuis, P Dupuis, P Glasserman, P Glasserman, P Glasserman, P Glasserman, PM Kotelenez, R Carmona, R Carmona, R Sircar, S Asmussen, S Deng, S Juneja, SJ Sadowsky, SN Ethier, SRS Varadhan, T Bielecki, TG Kurtz, WH Fleming   +45 more
core   +1 more source

X‐Ray Tomography Analysis of Damage Mechanisms in Metal Matrix Syntactic Foams During Compression

Advanced Engineering Materials, EarlyView.
In situ synchrotron X‐ray tomography is used to investigate the internal damage mechanisms of AlSi12 metal matrix syntactic foam with ceramic hollow spheres during compressive loading. It is concluded that a homogeneous distribution of the second‐phase filler material results in a sequential collapse in a localized region; this leads to controlled and ...
Indrajeet Tambe, János Endre Maróti, Imre Norbert Orbulov, Zoltan Hegedűs, Markus Ziehmer, Carl E. Krill III, Håkan Hallberg, Pär A. T. Olsson, Johan Hektor   +8 more
wiley   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

Advanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov, Roberta Gabrieli, Avzal Akbarov, Nigora Nigmatova, Bekhzod Khabilov, Alessandro Schiavi, Martin Schwentenwein, Enrica Verné, Francesco Baino   +8 more
wiley   +1 more source

The local power of the gradient test

, 2010
The asymptotic expansion of the distribution of the gradient test statistic is derived for a composite hypothesis under a sequence of Pitman alternative hypotheses converging to the null hypothesis at rate $n^{-1/2}$, $n$ being the sample size ...
A. Wald, Artur J. Lemonte, C.R. Rao, C.R. Rao, C.R. Rao, D. Firth, D.R. Cox, G.M. Cordeiro, G.R. Terrell, H.W. Peers, M.S. Bartlett, M.S. Bartlett, P. Harris, R. Bracewell, S.L.P. Ferrari, S.S. Wilks, Silvia L. P. Ferrari, T. Hayakawa, T. Hayakawa, T. Hayakawa   +19 more
core   +1 more source