Results 1 to 10 of about 2,235,965 (245)

Potassium transporter KUP9 participates in K+ distribution in roots and leaves under low K+ stress [PDF]

open access: yesStress Biology, 2022
Potassium (K) is a major essential element in plant cells, and KUP/HAK/KT-type K+ transporters participate in the absorption of K+ into roots and in the long-distance transport to above-ground parts.
Taro Yamanashi   +8 more
doaj   +2 more sources

Xylem K+ loading modulates K+ and Cs+ absorption and distribution in Arabidopsis under K+-limited conditions

open access: yesFrontiers in Plant Science, 2023
Potassium (K+) is an essential macronutrient for plant growth. The transcriptional regulation of K+ transporter genes is one of the key mechanisms by which plants respond to K+ deficiency. Among the HAK/KUP/KT transporter family, HAK5, a high-affinity K+
Satomi Kanno   +11 more
doaj   +1 more source

Minimum K-S estimator using PH-transform technique [PDF]

open access: yesSuan Sunandha Rajabhat University Journal of Science and Technology, 2016
In this paper, we propose an improvement of the Minimum Kolmogorov-Smirnov (K-S) estimator using proportional hazards transform (PH-transform) technique. The data of experiment is 47 fire accidents data of an insurance company in Thailand.
Somchit Boonthiem   +3 more
doaj   +1 more source

Analysis of a Model for Generating Weakly Scale-free Networks [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
It is commonly believed that real networks are scale-free and fraction of nodes $P(k)$ with degree $k$ satisfies the power law $P(k) \propto k^{-\gamma} \text{ for } k > k_{min} > 0$.
Raheel Anwar   +2 more
doaj   +1 more source

A method for estimating the parameters of the K distribution

open access: yesIEEE Transactions on Signal Processing, 1999
A method that combines the maximum likelihood and the method of moments for estimating the parameters of the K distribution is proposed. The method results in the lowest variance of parameter estimates when compared with existing non-ML techniques.
Iskander, D. Robert   +2 more
openaire   +3 more sources

Multi-radar fusion technique for high-resolution ISAR imaging in sea-cluttered environment

open access: yesThe Journal of Engineering, 2019
Radar imaging of the ship is one of the important means for surveillance and reconnaissance of targets. Here, the K-distribution is used for the statistical characterisation of echo model in sea-clutter environment.
Liu Yi   +3 more
doaj   +1 more source

Sampling Distribution for the K-Th Order Statistics from the Generalized Gumbel Distribution [PDF]

open access: yesThe Egyptian Statistical Journal, 2004
This article is concerned with the sampling distribution of the k-th order statistics of the generalized Gumbel distribution with one shape parameter 2 suggested by Adeyemi (2002). Focusing on the moments for the k-th order statistics numerical solutions
Amal Hassan
doaj   +1 more source

Pharmacokinetics of Two Chlorine-Substituted Bis-Pyridinium Mono-Aldoximes with Regenerating Effect on Butyrylcholinesterase

open access: yesMolecules, 2020
Our aim was to find chlorine-substituted antidotes against organophosphate poisoning and compare their pharmacokinetics to their parent compound, K-203. White male Wistar rats were intramuscularly injected with K-203, K-867 or K-870.
Huba Kalász   +4 more
doaj   +1 more source

Optimal location of logistics distribution centres with swarm intelligent clustering algorithms.

open access: yesPLoS ONE, 2022
A clustering algorithm is a solution for grouping a set of objects and for distribution centre location problems. But the common K-means clustering algorithm may give local optimal solutions. Swarm intelligent algorithms simulate the social behaviours of
Tsung-Xian Lin   +2 more
doaj   +1 more source

Angular Dependence of ${\cal K}$ -Distributed Sonar Data [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2007
Backscattered signal statistics are widely used for target detection and seafloor characterization. The K-distribution shows interesting properties for describing experimental backscattered intensity statistics. In addition to the fact that its probability distribution function accurately fits actual sonar data, it advantageously provides a physical ...
Gilles Le Chenadec   +2 more
openaire   +2 more sources

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