Zobrazeno 1 - 10
of 7 487
pro vyhledávání: '"Period (periodic table)"'
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio. 61:576-584
Fluoride is a natural contaminant of water – that endangers many people worldwide when present in concentrations higher than 2 ppm. Here, fluoride removal by four different nanostructured colloidal particles (SiO2@ZrO2nc, SiO2@ZrO2c, @ZrO2nc, and @
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6db3e5c4264bdb0acf04384c266bc4d7
https://doi.org/10.1016/j.bsecv.2021.06.002
https://doi.org/10.1016/j.bsecv.2021.06.002
Autor:
Serge Fabre, Bernard Lacaze
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 69:1862-1866
Periodic Nonuniform Samplings of order N (PNSN) are interleavings of periodic samplings. For a base period T, simple algorithms can be used to reconstruct functions of spectrum included in an union of N intervals δk of length 1/T. In this paper we s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b3a6c8e657dce8163f0d45b39bcf2aa
https://doi.org/10.1109/tcsii.2021.3105870
https://doi.org/10.1109/tcsii.2021.3105870
Autor:
Wei Ren
We propose Reduced Collatz Conjecture that is equivalent to CollatzConjecture but is easier to explore, because reduced dynamics ismore primitive than original dynamics and presents better structures(e.g., period and ratio). Reduced dynamics (that ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::926ec7810196b2cc58d92294875dfdeb
Autor:
Giancarlo Lanterna, Yeghis Keheyan
Publikováno v:
Journal of Microscopy. 285:68-84
The results of the analysis on some fragments of bronze belts and a bowl discovered from southwestern Armenia, Yegheghnadzor archaeological site, are discussed. The samples are dated to the 7-6 BCE from the Urartian period. The artifacts were corrode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8518c2e7d1a1a530ef203cac7c4649e2
https://doi.org/10.1111/jmi.13057
https://doi.org/10.1111/jmi.13057
Autor:
Andres Garcia, Ji-Huan He
Publikováno v:
Reports in Mechanical Engineering. 2:143-148
The simplest frequency formulation for conservative oscillators was proposed in 2019 (Results Phys 2019;15:102546). However, it becomes invalid for non-conservative oscillators. This work suggests the simplest amplitude-period formulation for non-con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9e881680eb11d8fea6723ae178fd687
https://doi.org/10.31181/rme200102143h
https://doi.org/10.31181/rme200102143h
Autor:
Albert C. J. Luo, Chuan Guo
Publikováno v:
The interdisciplinary journal of Discontinuity, Nonlinearity, and Complexity. 10:663-680
A bifurcation tree of period-3 motions to chaos in an inverted pendulum with a periodic base movement is presented through a discrete implicit mapping method. The stable and unstable periodic motions on the bifurcation tree are achieved semi-analytic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c146c17e5ed6e80be2a642fc47da2fb
https://doi.org/10.5890/dnc.2021.12.007
https://doi.org/10.5890/dnc.2021.12.007
Publikováno v:
Science intensive technologies in mechanical engineering. 2021:42-48
Studies have been carried out when grinding alloys based on titanium, vanadium, chromium, iron, cobalt and nickel. According to the condition of the neat surface, the alloys are divided into groups. The regularities of changes in the roughness parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f1d320905f90fbf01b5bcb73f4c546e
https://doi.org/10.30987/2223-4608-2021-11-42-48
https://doi.org/10.30987/2223-4608-2021-11-42-48
Autor:
Martin Kaltenegger, Elumalai Gopi, Yves Geerts, Jie Liu, Guangfeng Liu, Zijian Song, Lygia Silva de Moraes, Simone Napolitano
Publikováno v:
The Journal of Physical Chemistry B. 125:13339-13347
(R, S)-2-Chloromandelic acid, which can crystallize in racemic crystals (forms α and β) or a conglomerate (form γ), has been studied for its glass-forming behavior. Below the glass transition temperature, samples of the title compound crack into p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd264bdc3c8d5fe95ca8146555ce2dee
https://doi.org/10.1021/acs.jpcb.1c07749
https://doi.org/10.1021/acs.jpcb.1c07749
Electrocatalytic Methane Functionalization with d 0 Early Transition Metals Under Ambient Conditions
Autor:
Borna Zandkarimi, Hao Ming Chen, Sheng-Chih Lin, Jack T. Fuller, Anastassia N. Alexandrova, Jiao Deng, Chong Liu
Publikováno v:
Angewandte Chemie International Edition. 60:26630-26638
The undesirable loss of methane (CH4 ) at remote locations welcomes approaches that ambiently functionalize CH4 on-site without intense infrastructure investment. Recently, we found that electrochemical oxidation of vanadium(V)-oxo with bisulfate lig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::907533be32555f9a1fee6cee8440a6c4
https://doi.org/10.1002/anie.202107720
https://doi.org/10.1002/anie.202107720
Publikováno v:
Continuum Mechanics and Thermodynamics. 34:367-385
The objects of consideration are thin linearly thermoelastic Kirchhoff-Love-type circular cylindrical shells having a periodically microheterogeneous structure in circumferential and axial directions (biperiodic shells). The aim of this contribution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3c83581939cc033a3f145acd9fe3b4c
https://doi.org/10.1007/s00161-021-01060-w
https://doi.org/10.1007/s00161-021-01060-w