Results 21 to 30 of about 4,979,212 (314)

Comparison of the Responses of Soil Fungal Community to Straw, Inorganic Fertilizer, and Compost in a Farmland in the Loess Plateau

open access: yesMicrobiology Spectrum, 2022
The Loess Plateau is located in the arid and semi-arid regions in northern China. The ecosystem is particularly sensitive to natural and anthropogenic disturbances.
Yalin Yin   +5 more
doaj   +1 more source

Global path planning for mobile robot based on improved artificial potential function [PDF]

open access: yes, 2009
There is a major problem with traditional artificial potential field method. It is the formation of local minima that can trap the robot before reaching its goal. To overcome the problem, this paper presents an improved potential field approach.
Yiwen Zhao   +3 more
core   +1 more source

Potential Functions and Conservative Estimating Functions

open access: yesThe Annals of Statistics, 1994
The authors point out that the quasi-score function introduced by \textit{R. W. M. Wedderburn} [see e.g. Biometrika 61, 439-447 (1974; Zbl 0292.62050)] and \textit{P. McCullagh} [see e.g. Ann. Stat. 11, 59-67 (1983; Zbl 0507.62025)] does not inherit all important properties of the likelihood score function. Therefore they develop a method of projecting
Li, Bing, McCullagh, Peter
openaire   +3 more sources

Spherical potential functional theory [PDF]

open access: yesThe Journal of Chemical Physics, 2021
According to a recent theorem of Theophilou [J. Chem. Phys. 149, 074104 (2018)], a set of spherically symmetric densities determines uniquely the external potential in molecules and solids. This theorem leads to a fresh formulation of density functional theory.
openaire   +2 more sources

Numerical Solutions of Inverse Nodal Problems for a Boundary Value Problem

open access: yesMathematics, 2022
In this paper, we study inverse nodal problems for a boundary value problem. A uniqueness result for the potential function and a reconstruction method are obtained.
Yong Tang   +3 more
doaj   +1 more source

RNA tertiary structure modeling with BRiQ potential in CASP15 [PDF]

open access: yes, 2023
We describe the modeling method for RNA tertiary structures employed by team AIchemy_RNA2 in the 15th Critical Assessment of Structure Prediction (CASP15). The method consists of the following steps.
Chen, K   +7 more
core   +1 more source

Power Line Extraction From Aerial Images Using Object-Based Markov Random Field With Anisotropic Weighted Penalty

open access: yesIEEE Access, 2019
The extraction of power line plays a key role in power line inspection by Unmanned Aerial Vehicles (UAVs). While it is challenging to extract power lines in aerial images because of the weak targets and the complex background.
Le Zhao   +4 more
doaj   +1 more source

Empirical potential function for simplified protein models: Combining contact and local sequence-structure descriptors [PDF]

open access: yes, 2006
An effective potential function is critical for protein structure prediction and folding simulation. Simplified protein models such as those requiring only C-alpha or backbone atoms are attractive because they enable efficient search of the ...
Liang, J, Chen, R, Zhang, J
core   +1 more source

The potential function of microRNA in chordomas

open access: yesGene, 2016
Little is known about the molecular biology of chordomas, which are rare, chemoresistant tumors with no well-established treatment. miRNAs regulate gene networks and pathways. We aimed to evaluate the effects of dysregulated miRNA in chordomas would help reveal the underlying mechanisms of chordoma initiation and progression.
Sukru Gulluoglu   +6 more
openaire   +3 more sources

SMOOTHNESS OF SOLUTIONS (SEPARABILITY) OF THE NONLINEAR STATIONARY SCHR¨ODINGER EQUATION

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
The equation of motion of a microparticle in various force fields is the Schr¨odinger wave equation.Many questions of quantum mechanics, in particular the thermal radiation of electromagneticwaves, lead to the problem of separability of singular ...
A. Birgebayev, M. Muratbekov
doaj   +1 more source

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