Results 71 to 80 of about 1,672,113 (290)

The coordinate system transformation of a serial kinematic structures and use in the derivation of systems motion equations

open access: yesMATEC Web of Conferences, 2016
This text discusses the use of transformation matrices to determine the motion equations of the complex mechanical structure. Use of the transformation matrix does not apply only to motion equations but has the general use in relative positions determine
Zátopek Jiří
doaj   +1 more source

Helix Matrix Transformation Combined With Convolutional Neural Network Algorithm for Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry-Based Bacterial Identification

open access: yesFrontiers in Microbiology, 2020
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) analysis is a rapid and reliable method for bacterial identification.
Jin Ling   +13 more
doaj   +1 more source

Modular transformation and twist between trigonometric limits of $sl(n)$ elliptic R-matrix

open access: yes, 2001
We study the modular transformation of ${\bf Z}_n$-symmetric elliptic R-matrix and construct the twist between the trigonometric degeneracy of the elliptic R-matrix.Comment: 8 pages, latex, reference ...
Yang, W. -L., Zhen, Y.
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Revisiting the Mathematical Model for Determining Coordinates of Points in a Trimetric Projection

open access: yesMathematics
In a recent article in this journal, Nikolić et al. presented a mathematical model for computing the coordinates in the trimetric projection of a 3D object, in terms of the projections of unit areas on the three dihedral planes. We revisit this model and
Javier Sánchez-Reyes
doaj   +1 more source

Matrix Elements and Few-Body Calculations within the Unitary Correlation Operator Method

open access: yes, 2005
We employ the Unitary Correlation Operator Method (UCOM) to construct correlated, low-momentum matrix elements of realistic nucleon-nucleon interactions.
H. Feldmeier   +6 more
core   +1 more source

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

open access: yesMolecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley   +5 more
wiley   +1 more source

Quantitative Analysis of 4 × 4 Mueller Matrix Transformation Parameters for Biomedical Imaging

open access: yesPhotonics, 2019
Mueller matrix polarimetry is a potentially powerful technique for obtaining microstructural information of biomedical specimens. Thus, it has found increasing application in both backscattering imaging of bulk tissue samples and transmission microscopic
Wei Sheng   +9 more
doaj   +1 more source

Shuttle Program. Euler angles, quaternions, and transformation matrices working relationships [PDF]

open access: yes
A brief mathematical development of the relationship between the Euler angles and the transformation matrix, the quaternion and the transformation matrix, and the Euler angles and the quaternion is presented.
Henderson, D. M.
core   +1 more source

On the Poisson-Lie T-plurality of boundary conditions

open access: yes, 2008
Conditions for the gluing matrix defining consistent boundary conditions of two-dimensional nonlinear sigma-models are analyzed and reformulated. Transformation properties of the right-invariant fields under Poisson-Lie T-plurality are used to derive a ...
Albertsson, Cecilia   +2 more
core   +1 more source

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