Results 61 to 70 of about 6,217,741 (298)

N-body problem in $R^n$: Necessary conditions for a constant configuration measure

open access: yesElectronic Journal of Differential Equations, 2008
A formulation of the N-body problem is presented in which $m_{i}$ and $r_{i}in mathbb{R}^d$ are the mass and the position vector of the i-th body, $ x=(sqrt{m_{1}}r_{1},dots ,sqrt{m_{N}}r_{N})in mathbb{R}^n$ and $ n=dN$ ($d=1,2,3$).
Kal Zare
doaj  

Research on self-reconfiguration strategy of modular spherical robot

open access: yesInternational Journal of Advanced Robotic Systems, 2022
Self-reconfigurable robot is a complex system composed of multiple modular robots. Aiming at high efficiency and low energy consumption of self-reconfigurable robot configuration transformation, a self-reconfiguration strategy based on module mapping of ...
Hanxu Sun   +3 more
doaj   +1 more source

A Special Family of Stacked Central Configurations: Lagrange Plus Euler in One

open access: yes, 2019
We show the existence of a family of stacked central configurations in the planar five-body problem with a special property. Three bodies $$m_1$$m1, $$m_2$$m2 and $$m_3$$m3, ordered from left to right, are collinear and form an Euler central ...
J. Cornelio   +2 more
semanticscholar   +1 more source

On the planar central configurations of rhomboidal and triangular four- and five-body problems [PDF]

open access: yes, 2017
We consider a symmetric five-body problem with three unequal collinear masses on the axis of symmetry. The remaining two masses are symmetrically placed on both sides of the axis of symmetry. Regions of possible central configurations are derived for the
M. Shoaib, A. Kashif, I. Szücs-Csillik
semanticscholar   +1 more source

Measurable Residual Disease Monitoring During Treatment for Pediatric Acute Myeloid Leukemia in First Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survival after relapse in pediatric acute myeloid leukemia (AML) remains poor, highlighting the critical importance of identifying prognostic factors to guide optimal relapse management. Methods We investigated the prognostic impact of multiparameter flow cytometry (MFC) measurable residual disease (MRD) in 188 patients with first ...
Camilla Poulsen   +21 more
wiley   +1 more source

New spatial central configurations in the 5-body problem

open access: yesAnais da Academia Brasileira de Ciências, 2011
In this paper we show the existence of new families of convex and concave spatial central configurations for the 5-body problem. The bodies studied here are arranged as follows: three bodies are at the vertices of an equilateral triangle T, and the other
Luis F. Mello, Antonio C. Fernandes
doaj  

The Relationship Between Physical Activity and Left Ventricular Remodeling in Childhood Cancer Survivors Treated With Anthracyclines: A Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan   +15 more
wiley   +1 more source

Impact of central versus side jet impingement configurations on the cooling of a gas turbine leading edge at varying reynolds numbers and rotational speeds: experimental investigations

open access: yesInternational Journal of Thermofluids
This experimental study investigated the cooling performance of two jet impingement configurations central and side. The effects of Reynolds numbers ranging from 5000 to 11,000 and rotation speeds ranging from 0 to 200 rpm on the total heat transfer ...
Ahmad Alqasrawi   +4 more
doaj   +1 more source

Reduction of Induced Central Damage in Cold Extrusion of Dual-Phase Steel DP800 Using Double-Pass Dies

open access: yesMetals, 2017
Advanced High Strength Steels (AHSS) are a promising family of materials for applications where a high strength-to-weight ratio is required. Central burst is a typical defect commonly found in parts formed by extrusion and it can be a serious problem for
Francisco Javier Amigo   +1 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Home - About - Disclaimer - Privacy