Results 41 to 50 of about 4,346 (186)

Soil Loosening of Compacted Urban Tree Sites Using a Pneumatic Lance Injector: Quantifying Treatment Success Through Tree Morphology and Soil Structure Parameters via Terrestrial Laser Scanning

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Urban trees provide essential ecosystem services, but their growth and longevity are often limited by soil compaction. Although pneumatic lance injection (PLI) is increasingly promoted as a minimally invasive and efficient soil loosening technique, but robust scientific evidence for its long‐term effectiveness remains limited.
Oliver Löwe, Dominik Seidel, Katharina Weltecke, Thorsten Gaertig   +3 more
wiley   +1 more source

On Some Complex Aspects of the (2+1)-dimensional Broer-Kaup-Kupershmidt System

ITM Web of Conferences, 2017
The improved Bernoulli sub-equation function method is used in extracting some new exponential function solutions to the (2+1)-dimensional Broer-Kaup-Kupershmidt system. It is of vital effort to look for more solutions of the (2+1)-dimensional Broer-Kaup-
Bulut Hasan, Isik Hilal Arslanoglu, Sulaiman Tukur Abdulkadir   +2 more
doaj   +1 more source

Extending the hyper‐logistic model to the random setting: New theoretical results with real‐world applications

Mathematical Methods in the Applied Sciences, EarlyView.
We develop a full randomization of the classical hyper‐logistic growth model by obtaining closed‐form expressions for relevant quantities of interest, such as the first probability density function of its solution, the time until a given fixed population is reached, and the population at the inflection point.
Juan Carlos Cortés, Ana Navarro‐Quiles, Sorina Madalina Sferle   +2 more
wiley   +1 more source

Symbolic computation of optimal systems of subalgebras of three- and four-dimensional real Lie algebras [PDF]

Open Communications in Nonlinear Mathematical Physics
The complete optimal systems of subalgebras of all nonisomorphic three- and four-dimensional real Lie algebras are analyzed by the program \symbolie running in the computer algebra system \emph{Wolfram Mathematica}\texttrademark.
Luca Amata, Francesco Oliveri, Emanuele Sgroi   +2 more
doaj   +1 more source

Evolutionary dynamics of solitary wave profiles and abundant analytical solutions to a (3+1)-dimensional burgers system in ocean physics and hydrodynamics

Journal of Ocean Engineering and Science, 2023
In the fields of oceanography, hydrodynamics, and marine engineering, many mathematicians and physicists are interested in Burgers-type equations to show the different dynamics of nonlinear wave phenomena, one of which is a (3+1)-dimensional Burgers ...
Sachin Kumar, Amit Kumar, Brij Mohan
doaj   +1 more source

Mathematical Analysis and Simulations of a Cancer Model With Interleukins and Delayed Immunotherapy

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A new system of delayed differential equations for tumor‐immune system interactions is proposed and studied. The system describes the interactions between tumor cells and the immune system at the most aggressive phase of cancer, where tumor cells have developed mechanisms from earlier stages to evade immune responses.
Laid Boudjellal, Ana Jacinta Soares, Maria Joana Torres   +2 more
wiley   +1 more source

Инструменты и средства Wolfram Mathematica для разработки интеллектуальных обучающих систем [PDF]

, 2015
Instruments and Means of Wolfram Mathematica For Development of Intelligent Tutoring Systems. V. Taranchuk Doctor of Physics and Mathematics, Professor (Belarusian State University, Minsk)Описаны новые возможности и рекомендации применения технологий ...
Таранчук, В. Б.
core  

Methodological and Technical Solutions for Creating and Forming a Knowledge Base by Integrating the Mathematica System and the Nevod Package [PDF]

, 2023
This paper presents an example of integration of alocal intelligent computer system based on the Nevod library withthe knowledge base of Wolfram Mathematica computer algebra system, which can be interpreted as an analogue of knowledge base localization ...
Savionok, V. A., Taranchuk, V. B.
core  

Tools for the analysis and visualisation of distributions and vector fields in surface forest fires modelling

Журнал Белорусского государственного университета: Математика, информатика, 2022
The problem of computer modelling of the spread of surface forest fires in a two-dimensional formulation is herein considered. We describe the initial-boundary value problem in the form of a system of partial differential equations in the accepted ...
Dmitry V. Barovik, Valery B. Taranchuk
doaj   +1 more source

Self‐Similar Blowup for the Cubic Schrödinger Equation

Communications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1831-1918, August 2026.
ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley   +1 more source