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Response of characteristic hormones in tea roots and leaves under magnesium regulation and their balancing regulation on growth and quality [PDF]

open access: yesFrontiers in Plant Science
Magnesium (Mg) plays a critical role in tea plant growth, profoundly affecting their development and leaf quality. In our study, we used hormone metabolomics technology to identify characteristic hormones that underwent significant changes in roots and ...
Xiaoli Jia   +10 more
doaj   +2 more sources

VSC-HVDC transmission line fault location based on transient characteristics [PDF]

open access: yesArchives of Electrical Engineering, 2021
Accurate and reliable fault location is necessary for ensuring the safe and reliable operation of the VSC-HVDC transmission system. This paper proposed a single-terminal fault location method based on the fault transient characteristics of the two ...
Yanxia Zhang   +4 more
doaj   +1 more source

Investigation of Matrices Q^(n._L ), M^(n._L ) and R^(n._L ) and Some Related Identities

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In this study, it is aimed to use the Lorenz matrix multiplication to find the n^th powers of some special matrices and to reach the quadratic equations and characteristic roots of the matrices obtained in this way. In addition, it is aimed to contribute
Ali Hikmet Değer, İbrahim Gökcan
doaj   +1 more source

Roots of Characteristic Polynomial Sequences in Iterative Block Cyclic Reductions

open access: yesMathematics, 2021
The block cyclic reduction method is a finite-step direct method used for solving linear systems with block tridiagonal coefficient matrices. It iteratively uses transformations to reduce the number of non-zero blocks in coefficient matrices.
Masato Shinjo   +3 more
doaj   +1 more source

A new insight into the role of iron plaque in arsenic and cadmium accumulation in rice (Oryza sativa L.) roots

open access: yesEcotoxicology and Environmental Safety, 2023
Iron plaque, naturally iron-manganese (hydr)oxides adhered to the surface of rice roots, controls the sequestration and accumulation of arsenic (As) and cadmium (Cd) in the paddy soil-rice system. However, the effects of the paddy rice growth on the iron
Xiaosong Tian   +5 more
doaj   +1 more source

Oriented by Characteristic Roots Reduced Matrices in the Class of Semiscalarly Equivalent

open access: yesJournal of Mathematics, 2021
A set of polynomial 3×3-matrices of simple structure has been singled out, for which a so-called oriented by certain characteristic roots reduced matrix is established in the class of semiscalarly equivalent.
B. Z. Shavarovskii
doaj   +1 more source

Delay equations and characteristic roots: stability and more from a single curve

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
Delays appear always more frequently in applications, ranging, e.g., from population dynamics to automatic control, where the study of steady states is undoubtedly of major concern.
Dimitri Breda   +2 more
doaj   +1 more source

Gridding discretization-based multiple stability switching delay search algorithm: The movement of a human being on a controlled swaying bow. [PDF]

open access: yesPLoS ONE, 2017
Delay represents a significant phenomenon in the dynamics of many human-related systems-including biological ones. It has i.a. a decisive impact on system stability, and the study of this influence is often mathematically demanding. This paper presents a
Libor Pekař   +2 more
doaj   +1 more source

On the Location of Some Characteristic Quasipolinomial Roots

open access: yesМоделирование и анализ информационных систем, 2015
The location of zeros of two characteristic quasi-polynomials arising from studying the differential equations with a retarded argument is considired. The first one originates from the mathematical model of electromagnetic oscillations generator with a ...
D. S. Glyzin   +2 more
doaj   +1 more source

Anatomical and histochemical comparison of the primary and adventitious roots of Attalea microcarpa (Arecaceae) at the initial growth stage [PDF]

open access: yesActa Amazonica, 2019
We describe the anatomical structure of roots originating from the apocole of Attalea microcarpa compared to the primary root, by means of usual methods for optical microscopy.
Marcos Melo CORRÊA   +2 more
doaj   +1 more source

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