Results 61 to 70 of about 1,413,385 (166)

A conjecturedR-matrix [PDF]

Journal of Physics A: Mathematical and General, 1998
A new spectral parameter independent R-matrix (that depends on all of the dynamical variables) is proposed for the elliptic Calogero-Moser models. Necessary and sufficient conditions for this R-matrix to exist reduce to an equality between determinants of matrices involving elliptic functions.
openaire   +2 more sources

Characterisation and Application Studies of Sophorolipid Biosurfactant by Candida tropicalis RA1

Journal of Pure and Applied Microbiology, 2019
The present study reports isolation of Candida tropicalis RA1 from oil contaminated refinery soil. The study depicted production of 31 g sophorolipid (SLs) l-1 by Candida tropicalis RA1 until 240 h, using soya oil.
Rutuja Ankulkar, Meera Chavan
doaj   +1 more source

Rank relations between a {0, 1}-matrix and its complement

Open Mathematics, 2018
Let A be a {0, 1}-matrix and r(A) denotes its rank. The complement matrix of A is defined and denoted by Ac = J − A, where J is the matrix with each entry being 1.
Ma Chao, Zhong Jin
doaj   +1 more source

Tailor-made 3D printing TPU/PLA composites for damping and energy absorption

Materials & Design
Commercially available thermoplastic polyurethane (TPU) materials for 3D printing often exhibit inadequate damping properties, limiting their application in damping scenarios.
Ruichao Zu, Wenzheng Chen, Yicang Huang, Yujie Chen, Chengzhen Du, Qunfu Fan, Hua Li, Hezhou Liu   +7 more
doaj   +1 more source

Diagonal Matrix Reduction over Refinement Rings

پژوهش‌های ریاضی, 2022
: A ring R is called a refinement ring if the monoid of finitely generated projective R- modules is refinement.  Let R be a commutative refinement ring and M, N, be two finitely generated projective R-nodules, then M~N  if and only if Mm ~Nm for all ...
Marjan Sheibani Abdolyousefi, Raham Bahmani Sangesari, Nahid Ashrafi   +2 more
doaj  

Twin Toughening‐Driven Martensitic Transformation Strategy Synergistic Improvement for Plasticity‐Thermal Shock Resistance of (Hf─Zr─Ti)C Ceramic Coating in Severe Thermal Environments

Advanced Science
The inherent brittleness and insufficient thermal shock resistance of ultra‐high temperature ceramic (UHTC) in severe thermal environments (above 2000 °C) remain significant challenges.
Jiachen Li, Yulei Zhang, Yanqin Fu, Tao Li, Jian Zhang, Deyu Yang, Lingfei Cao, Fanyu Lu, Junhao Zhao, Junshuai Lv, Hejun Li   +10 more
doaj   +1 more source

Theoretical calculations and analysis for n + 6Li reaction

EPJ Web of Conferences, 2017
R-matrix theory is an important methodology for applications on light, medium and heavy mass nuclides nuclear reaction in the resonance energy range. Full R-matrix formalism contains the diagonal elements of the energy levels matrix and it is a rigorous ...
Tao Xi, Wang Jimin, Chen Guochang, Shen Qingbiao   +3 more
doaj   +1 more source

mpmsim: An R package for simulating matrix population models

Methods in Ecology and Evolution
Matrix population models (MPMs) are widely used in ecology and evolution to explore population dynamics, including assessing management impacts and extinction risk. In comparative studies, MPMs can be used to test life‐history theory or investigate macro‐
Owen R. Jones
doaj   +1 more source

Disjoint sections of positive semidefinite matrices and their applications in linear statistical models

Special Matrices
Given matrices AA and BB of the same order, AA is called a section of BB if R(A)∩R(B−A)={0}{\mathscr{R}}\left(A)\cap {\mathscr{R}}\left(B-A)=\left\{0\right\} and R(AT)∩R((B−A)T)={0}{\mathscr{R}}\left({A}^{T})\cap {\mathscr{R}}\left({\left(B-A)}^{T ...
Eagambaram N.
doaj   +1 more source

beachmat: A Bioconductor C++ API for accessing high-throughput biological data from a variety of R matrix types. [PDF]

PLoS Comput Biol, 2018
Lun ATL, Pagès H, Smith ML.
europepmc   +1 more source