Results 11 to 20 of about 809,111 (266)

New Variational Problems with an Action Depending on Generalized Fractional Derivatives, the Free Endpoint Conditions, and a Real Parameter [PDF]

Symmetry, 2021
This work presents optimality conditions for several fractional variational problems where the Lagrange function depends on fractional order operators, the initial and final state values, and a free parameter. The fractional derivatives considered in this paper are the Riemann–Liouville and the Caputo derivatives with respect to an arbitrary kernel ...
Ricardo Almeida 0001, Natália Martins
openaire   +2 more sources

New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b [PDF]

The Astrophysical Journal, 2008
6 pages, 3 figures, 2 tables, Accepted to ApJ ...
Coughlin, Jeffrey L., Stringfellow, Guy S., Becker, Andrew C., Lopez-Morales, Mercedes, Mezzalira, Fabio, Krajci, Tom   +5 more
openaire   +2 more sources

Idiopathic recurrent calcium urolithiasis (IRCU): pathophysiology evaluated in light of oxidative metabolism, without and with variation of several biomarkers in fasting urine and plasma - a comparison of stone-free and -bearing male patients, emphasizing mineral, acid-base, blood pressure and protein status*

European Journal of Medical Research, 2011
Background IRCU is traditionally considered as lifestyle disease (associations with, among others, overweight, obesity, hypertension, type-2 diabetes), arising from excess, in 24 h urine, of calcium (Ca) salts (calcium oxalate (CaOx), calcium phosphate ...
Schwilie PO, Schmiedl A, Manoharan M, Wipplingcr J   +3 more
doaj   +1 more source

Assessing the genetic diversity in small farm animal populations*

Animal, 2011
Genetic variation is vital for the populations to adapt to varying environments and to respond to artificial selection; therefore, any conservation and development scheme should start from assessing the state of variation in the population.
M.A. Toro, T.H.E. Meuwissen, J. Fernández, I. Shaat, A. Mäki-Tanila   +4 more
doaj   +1 more source

Sensitivity Analysis of Plant- and Cultivar-Specific Parameters of APSIM-Sugar Model: Variation between Climates and Management Conditions

Agronomy, 2019
With increasing demand for food and energy, there is a great need for improving sugarcane productivity. New cultivars and management strategies can be assessed using process-based crop models.
M.H.J.P. Gunarathna, Kazuhito Sakai, Tamotsu Nakandakari, Kazuro Momii, M.K.N. Kumari   +4 more
doaj   +1 more source

Modelling human hard palate shape with Bézier curves. [PDF]

PLoS ONE, 2018
People vary at most levels, from the molecular to the cognitive, and the shape of the hard palate (the bony roof of the mouth) is no exception. The patterns of variation in the hard palate are important for the forensic sciences and (palaeo)anthropology,
Rick Janssen, Scott R Moisik, Dan Dediu
doaj   +1 more source

Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring

Sensors, 2022
The elasto-magnetic method is a promising pathway for cable force monitoring in cable-stayed bridges. Under the action of an externally applied pulsed magnetic field, both the variation in the main flux recorded by the induction coil and the localized ...
Shuangsheng Yan, Yujue Wang, Peng Li, Zhichao Gao, Bin Wu, Xiucheng Liu   +5 more
doaj   +1 more source

Hydration Kinetics for Alkaline Activation of Slag from Color Variation Data

Molecules, 2021
In this study, we explore a new method based on color variation data to derive the kinetics of the entire process of the hydration of alkali-activated slag (AAS).
Zhaoyang Ding, Jinghai Zhou, Qun Su, Hong Sun, Yichao Zhang, Qing Wang, Hongguang Bian, Fengxin Dong   +7 more
doaj   +1 more source

Notes on range extension and geographic variation of calls in Adenomera thomei (Anura: Leptodactylidae) [PDF]

Check List, 2014
New localities are herein reported for Adenomera thomei in Minas Gerais state, increasing its known distribution towards the Brazilian northwest and expanding knowledge on its habitat use. The advertisement calls of Adenomera thomei here reported exhibit
Lucas Ferrante, Ariadne Angulo, Mario Sacramento   +2 more
doaj   +3 more sources

Two semi-analytical approaches to approximate the solution of stochastic ordinary differential equations with two enormous engineering applications

Alexandria Engineering Journal, 2022
This study proposes a new large-scale application for efficient semi-analytical techniques, Variation of Parameters Method with an auxiliary parameter and Temimi and Ansari method.
Aisha F. Fareed, Mourad S. Semary, Hany N. Hassan   +2 more
doaj   +1 more source