Results 11 to 20 of about 739,090 (133)

The diamond-silicon carbide composite Skeleton^® as a promising material for substrates of intense X-ray beam optics. [PDF]

J Synchrotron Radiat
A new material for substrates of optical elements used under ultra‐powerful X‐ray beams is described – the diamond‐silicon carbide composite Skeleton®. The composition and structure of the material, its surface roughness with a technological coating of polycrystalline silicon and its thermophysical characteristics are studied.The paper considers the ...
Pestov AE, Lopatin AY, Volkov PV, Zorina MV, Lukyanov AY, Malyshev IV, Mikhailenko MS, Toropov MN, Semikov DA, Chernyshev AK, Chkhalo NI, Yunin PA, Glushkov EI, Gordeev SK, Korchagina SB.   +14 more
europepmc   +2 more sources

Orthogonality on the given hyperbolic planes [PDF]

, 1990
It has been proved, by K. Menger in [3], that all concepts of the Bolyai-Lobachevsky geometry can be defined in terms of the operations “joining” and “intersecting”.
Fryda, Jan
core   +3 more sources

Multidimensional Lobachevsky Spline Integration on Scattered Data [PDF]

, 2014
This paper deals with the topic of numerical integration on scattered data in Rd, d ≤10, by a class of spline functions, called Lobachevsky splines.
De Rossi, Alessandra, Allasia, Giampietro, Cavoretto, Roberto   +2 more
core   +1 more source

Do Financialization and Innovation Enhance Environmental Sustainability in Sub‐Saharan Africa?

Thunderbird International Business Review, EarlyView.
ABSTRACT This study addresses the perception of Sub‐Saharan Africa (SSA) as a region with limited financial capabilities and technological advancement to enhance environmental sustainability. Conducted across 24 SSA countries from 2000 to 2021, the research employs instrumental IV and panel quantile regressions.
Emmanuel Kwaku Manu, Maria L. Gorbunova, Simplice A. Asongu   +2 more
wiley   +1 more source

On the possibility of teaching elements of Lobachevski Geometry at School [PDF]

, 2012
It is useful to teach elements of Lobachevsky geometry at school because the study of non-Euclidean geometry makes good impact on the understanding of logical structure of school geometry, on the comprehension of the role and place of the axiom of ...
Atanasyan, Sergey
core   +1 more source

Cerium‐Enabled Synergy of Built‐In Electric Field and Lewis Acid Site for Enhancive Biomass Electrooxidation

Rare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT The lack of diverse active sites in single‐component catalysts inevitably leads to a competitive adsorption dilemma between 5‐hydroxymethylfurfural (HMF) and OH−, impeding the kinetics of electrocatalytic oxidation of HMF (EC‐HMFOR). Herein, we deliver an interfacial engineering strategy by constructing a rare‐earth metal oxide heterostructure
Ruijia Cao, Keping Wang, Hongguo Wu, Artem S. Belousov, Hu Li   +4 more
wiley   +1 more source

AI‐Assisted IoT‐Enabled ECG Monitoring: Integrating Foundational and Generative AI Tools for Sustainable Smart Healthcare—Recent Trends

AI &Innovation, Volume 1, Issue 2, September 2026.
ABSTRACT The rapid evolution of the Internet of Things (IoT) has significantly advanced the field of electrocardiogram (ECG) monitoring, enabling real‐time, remote, and patient‐centric cardiac care. This paper presents a comprehensive survey of AI assisted IoT‐based ECG monitoring systems, focusing on the integration of emerging technologies such as ...
Amrita Choudhury, Kandarpa Kumar Sarma, Lachit Dutta   +2 more
wiley   +1 more source

HF Heating Effects as Seen From Below and Above: First Results of Joint SURA–Ionosfera‐M Experiment

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract This paper presents the first results of a coordinated experiment on the ionospheric plasma response to high‐frequency (HF) overdense heating, conducted using the SURA heating facility and the Ionosfera‐M satellite. The experiment combined ground‐based observations with in situ satellite measurements, enabling a comprehensive study of ...
A. A. Chernyshov, A. M. Padokhin, S. M. Grach, D. A. Kogogin, A. V. Shindin, S. A. Pulinets, I. A. Nasyrov, A. B. Beletsky, I. D. Tkachev, J. K. Legostaeva, D. V. Chugunin, M. A. Evdokimova, G. A. Kurbatov, K. G. Tsybulya, A. E. Solin, A. V. Shchennikov, E. V. Tareeva, V. V. Emelyanov, M. M. Mogilevsky   +18 more
wiley   +1 more source

Biogeography of Bursaphelenchus Species Driven by Climate, Vectors and Hosts: Implications for Forest Pathology Under Climate Change

Forest Pathology, Volume 56, Issue 4, August 2026.
ABSTRACT Wood‐inhabiting nematodes of the genus Bursaphelenchus are a group with significant ecological and economic impacts on global forest ecosystems. This review aims to update current knowledge on their spatial distribution, host‐vector associations and the factors driving species expansion under the framework of climate change.
Neilan Chotzar, Dimitris Avtzis, Maria Argyropoulou, Nikolaos Monokrousos   +3 more
wiley   +1 more source

ON THE 3-TRANSITIVITY OF TRANSFORMATION GROUP OF THE LOBACHEVSKY PLANE IN THE BELTRAMI-KLEIN MODEL [PDF]

, 2017
In this paper the transformation group of the Lobachevsky plane in the Beltrami-Klein model that extends the group of motions is considered. One property of this group analogous to the 3-transitivity is established.6-
Нигматуллина Лейсан Ильшатовна
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