Results 71 to 80 of about 4,346 (186)

Ambiguities in Assigning Single‐Crystal NMR Data to Individual Atoms in the Crystal Structure: A Case Study of Hambergite, Be2BO3OH, by 9Be and 11B NMR Spectroscopy, XRD Measurements and DFT Calculations

Magnetic Resonance in Chemistry, Volume 64, Issue 4, Page 400-415, April 2026.
The fundamental question of how to assign NMR resonances to specific atoms in the unit cell is addressed by using the 9Be and 11B spectra of the natural mineral hambergite as a model system. ABSTRACT The NMR interaction tensors of 9Be and 11B of hambergite, Be 2BO 3OH, were derived from single‐crystal NMR experiments.
Jennifer Steinadler, Georg Krach, Kristian Witthaut, Tobias Stürzer, Rupert Hochleitner, Wolfgang Schnick, Thomas Bräuniger   +6 more
wiley   +1 more source

Automatic calculation of symmetry‐adapted tensors under spin‐group symmetry: STENSOR, a new tool of the Bilbao Crystallographic Server

Journal of Applied Crystallography, Volume 59, Issue 2, Page 640-647, April 2026.
STENSOR automatically computes symmetry‐adapted tensors under spin and magnetic point groups. It generates tensors for both spin and magnetic point groups from structural data files or spin‐group generators. The comparison permits separation of the effects due to spin–orbit coupling from non‐relativistic contributions, as illustrated by examples.We ...
Luis Elcoro, Jesus Etxebarria, J. Manuel Perez-Mato, Emre S. Tasci   +3 more
wiley   +1 more source

Solving the n $n$‐Player Tullock Contest

Journal of Public Economic Theory, Volume 28, Issue 2, April 2026.
ABSTRACT The n $n$‐player Tullock contest with complete information is known to admit explicit solutions in special cases, such as (i) homogeneous valuations, (ii) constant returns, and (iii) two contestants. But can the model be solved more generally?
Christian Ewerhart
wiley   +1 more source

MATHEMATICAL MODELING OF THE INFLUENCE OF RELAXATION PROCESSES ON THE TEMPERATURE FIELD IN AN ELASTIC HALF-SPACE

Российский технологический журнал, 2017
The article examines the relaxation processes that occur in an elastic solid medium when it is heated and cooled, especially their influence on the temperature field. Besides, we considered in this paper the heat equation of parabolic type arising in the
I. A. Dzhemesyuk, S. G. Gorbunov
doaj   +1 more source

Linking sap flow and tree water deficit in an unmanaged, mixed beech forest during the summer drought 2022

Plant Biology, Volume 28, Issue 3, Page 747-761, April 2026.
Sap flow and reversible stem shrinkage upon water depletion are strongly correlated under extreme drought conditions, but they respond differently to drought and cannot be used interchangeably when assessing tree response to drought. Abstract Temperate mixed forests are currently experiencing severe drought conditions and face increased risk of ...
L. S. Donfack, M. Mund, F. Koebsch, P. Schall, M. G. Heidenreich, D. Seidel, C. Ammer   +6 more
wiley   +1 more source

Double Wishbone Suspension: A Computational Framework for Parametric 3D Kinematic Modeling and Simulation Using Mathematica

Technologies
The double wishbone suspension (DWS) system is widely used in automotive engineering because of its favorable kinematic properties, which affect vehicle dynamics, handling, and ride comfort; hence, it is important to have an accurate 3D model, simulation,
Muhammad Waqas Arshad, Stefano Lodi, David Q. Liu   +2 more
doaj   +1 more source

Shape Memory Activated Self-Deployable Solar Sails: Small-Scale Prototypes Manufacturing and Planarity Analysis by 3D Laser Scanner

Actuators, 2019
Solar sails are propellantless systems where the propulsive force is given by the momentum exchange of reflecting photons. Thanks to the use of shape memory alloys for the self-actuation of the system, complexity of the structure itself has decreased and
Alberto Boschetto, Luana Bottini, Girolamo Costanza, Maria Elisa Tata   +3 more
doaj   +1 more source

Modeling of semiconductor heterostructures for energy converters and sensors

Вестник Самарского университета: Естественнонаучная серия
A set of modeling programs for constructing a sequence of energy zones of heterojunctions is presented for analyzing the distribution of charge carriers in the heterostructure and internal characteristics, for describing the processes of charge transfer ...
M. V. Dolgopolov, M. V. Elisov, S. A. Radzhapov, I. R. Rakhmankulov, A. S. Chipura   +4 more
doaj   +1 more source

IMAGE MANIPULATION USING WOLFRAM LANGUAGE

, 2022
Wolfram Language является развитием символьного языка программирова-ния, разработанного для широко известной системы Mathematica. В данной ра-боте рассматриваются примеры заданий на этом языке, которые предлагаются студентам для развития навыков работы с
МИННЕГАЛИЕВА Чулпан Бакиевна, МЕДВЕДЕВА Ольга Анатолиевна   +1 more
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Технология построения решений разреженных линейных систем с матрицей инцидентности графа в Wolfram Mathematica

, 2014
Приводится реализация в Wolfram Mathematica эффективных алгоритмов вычисления ненулевых компонент характеристического вектора с использованием технологии хранения и преобразования корневых деревьев, свойств разреженности системы и сетевых свойств опоры ...
Пилипчук, Л. А.
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