Rayleigh Fading Modeling and Channel Hardening for Reconfigurable Intelligent Surfaces [PDF]
IEEE Wireless Communications Letters, 2020 A realistic performance assessment of any wireless technology requires the use of a channel model that reflects its main characteristics. The independent and identically distributed Rayleigh fading channel model has been (and still is) the basis of most ...
Emil Björnson, L. Sanguinetti
semanticscholar +1 more source
A review of crop frost damage models and their potential application to cover crops
Italian Journal of Agronomy, 2022 Cover crops provide agro-ecological services like erosion control, improvement of soil quality, reduction of nitrate leaching and weed control. Before planting the subsequent cash crop, cover crops need to be terminated with herbicides, mechanically or ...
Mara Gabbrielli +3 more
doaj +1 more source
Study of Alloy Hot Flow and Hardening Behavior Using a New Correction Method for Hot Uniaxial Tests
Metals, 2021 The precise characterisation of hot flow behavior of titanium alloys is of vital importance for practical hot forming processes. To precisely determine the hot flow behavior of titanium alloys under the forming conditions, Gleeble hot tensile tests are ...
Shuguang Qu +4 more
doaj +1 more source
Effect Of Initial Stress Anisotropy on The Cyclic Behaviour of Sand [PDF]
Engineering and Technology Journal, 2005 Due mainly to the process of deposition under earth gravity , the behavior of in situ sand is inherently anisotropic , meaning the stress - strain - strength relations for the same sand may vary as the stress tensor rotates relative to the orientation of
Mohammed Fattah
doaj +1 more source
Research and optimization of the technology for the synthesis of a modifying additive based on a mixture of hydro silicates and calcium aluminosilicates [PDF]
Нанотехнологии в строительстве, 2022 Introduction. To improve the performance properties of lime coatings, modifying additives are introduced into their formulation. The development of a technology for the synthesis of an additive containing calcium hydro- and aluminosilicates, which ...
Valentina I. Loganina, Mikhail V. Frolov
doaj +1 more source
On Strain Hardening Mechanism in Gradient Nanostructures
Heterostructured Materials, 2021 Experiments have shown that a gradient design, in which grain size spans over four orders of magnitude, can make strong nanomaterials ductile. The enhanced ductility is attributed to the considerable strain hardening capability obtained in the gradient ...
Jianjun Li +3 more
semanticscholar +1 more source
A roadmap for quality control of hardening and hardened printed concrete
Cement and Concrete Research, 2022 This article focuses on the specifics in characterizing the properties of additively manufactured, cement-based materials in their hardening and hardened states.
V. Mechtcherine +12 more
semanticscholar +1 more source
Mineral additive for lime dry building mixtures
Magazine of Civil Engineering, 2023 The article deals with lime dry building mixtures for the restoration of historical buildings. Considering the low strength and water resistance of coatings based on lime compositions, the possibility of using mixed clay fired at low temperatures (450 ...
Loganina Valentina, Akzhigitova Elvira
doaj +1 more source
Morphological Evaluation of Gallesia Integrifolia Seedlings Under Different Water Management Systems
Floresta e Ambiente, 2020 This study aimed to quantify the effects of water management during hardening on seedlings of Gallesia integrifolia (Spreng.) Harms, evaluating leaf temperature, morphometric variables, and their performance after hardening in sandy and clayey soil ...
Paulo Ricardo Lima +4 more
doaj +1 more source
ANALYSIS OF CRYSTAL STRUCTURES ON STAINLESS STEEL SURFACE
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019 In this paper experiments of crystallization from melt with an analysis of the morphology of formed crystal structures are presented, examples of the forming of complex dendritic formations are shown. The chemical composition of various types of crystals
A.A. Burtsev, O.Ya. Butkovskii
doaj +1 more source