Results 21 to 30 of about 10,849,141 (303)

Root Locus Practical Sketching Rules for Fractional-Order Systems

open access: yesAbstract and Applied Analysis, 2013
For integer-order systems, there are well-known practical rules for RL sketching. Nevertheless, these rules cannot be directly applied to fractional-order (FO) systems.
António M. Lopes   +1 more
doaj   +1 more source

An Efficient Family of Optimal Eighth-Order Multiple Root Finders

open access: yesMathematics, 2018
Finding a repeated zero for a nonlinear equation f ( x ) = 0 , f : I ⊆ R → R has always been of much interest and attention due to its wide applications in many fields of science and engineering.
Fiza Zafar   +2 more
doaj   +1 more source

The Roots of Amrican Order

open access: yesMGIMO Review of International Relations, 2018
Review of the book by Kirk R. The Roots of American Order. Publishing House “MGIMO-University” M., 2017 655 p. (In Russian).
openaire   +3 more sources

Fine Root Traits across Different Root Orders and Their Associations with Leaf Traits in 15 Co-Occurring Plant Species from the Desert–Oasis Transition Zone in the Hexi Corridor, Gansu Province, China

open access: yesPlants
Fine root traits embody trade-offs between resource acquisition and conservation in plants. Yet, the differentiation of these traits across root orders, the existence of a root economics spectrum (RES) spanning these orders, and their linkage with leaf ...
Yiming Chen   +5 more
doaj   +1 more source

On Derivative Free Multiple-Root Finders with Optimal Fourth Order Convergence

open access: yesMathematics, 2020
A number of optimal order multiple root techniques that require derivative evaluations in the formulas have been proposed in literature. However, derivative-free optimal techniques for multiple roots are seldom obtained.
Janak Raj Sharma   +2 more
doaj   +1 more source

Optimal eighth-order multiple root finding iterative methods using bivariate weight function

open access: yesResults in Control and Optimization, 2023
In this contribution, a novel eighth-order scheme is presented for solving nonlinear equations with multiple roots. The proposed scheme comprises of three steps with the modified Newton method as its first step followed by two weighted Newton steps ...
Rajni Sharma, Ashu Bahl, Ranjita Guglani
doaj   +1 more source

A characterization of a special ordering in a root system [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We give necessary and sufficient conditions for an ordering of a set of positive roots in a root system R R to be ...
openaire   +2 more sources

A Class of Three-Step Derivative-Free Root Solvers with Optimal Convergence Order

open access: yesJournal of Applied Mathematics, 2012
A class of three-step eighth-order root solvers is constructed in this study. Our aim is fulfilled by using an interpolatory rational function in the third step of a three-step cycle.
F. Soleymani   +2 more
doaj   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess   +5 more
wiley   +1 more source

Linking root morphology, longevity and function to root branch order: a case study in three shrubs [PDF]

open access: yes, 2010
Root branching order supports a powerful approach to understanding complex root systems; however, how the pattern of root morphological characteristics, tissue carbon (C) and nitrogen (N) concentrations, and root lifespan are related to anatomical ...
Huang   +8 more
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