Results 11 to 20 of about 138,604 (330)

The Modeling of Radioactive Cobalt Adsorption on Molecular Sieves

open access: yesCumhuriyet Science Journal, 2022
Radioactive wastes are products of nuclear activities around the world. Radioactive cobalt is one of the usually found radionuclide in nuclear waste. It is crucial to separate radioactive cobalt from aqueous media.
Ekrem Çiçek
doaj   +1 more source

Study on the synthesis mechanism of sodalite, gismondine, and zeolite-P1 zeolite materials from ladle furnace slag and fly ash

open access: yesScientific Reports, 2023
In this study, geopolymers were prepared using ladle furnace slag (LFS) and fly ash (FA), and hydrothermal treatment was then used to synthesize bulk zeolite molecular sieves with gismondine, zeolite-P1, and sodalite phases.
Wenqing Ma   +5 more
doaj   +1 more source

A novel heterogenized Ni/β-diimine/SBA-15 complex applied for catalytic ethylene oligomerization

open access: yesResults in Chemistry, 2021
Catalytic oligomerization of ethylene performed with the sterically hindered β-diimine ligand 2-(2,6-diisopropylphenyl)-amine-4-(2,6-diisopropylphenyl)-imine-2-pentene covalently ancored on SBA-15 mesoporous support employing the alkosilane 3 ...
Adriano Martinez Basso   +4 more
doaj   +1 more source

Infinite dimensional parameter identification for stochastic parabolic systems [PDF]

open access: yes, 1988
The infinite dimensional parameter estimation for stochastic heat diffusion equations is considered using the method of sieves.
Aihara, ShinIchi, Bagchi, Arunabha
core   +3 more sources

Two Compact Incremental Prime Sieves [PDF]

open access: yes, 2015
A prime sieve is an algorithm that finds the primes up to a bound $n$. We say that a prime sieve is incremental, if it can quickly determine if $n+1$ is prime after having found all primes up to $n$. We say a sieve is compact if it uses roughly $\sqrt{n}$
Sorenson, Jonathan P.
core   +3 more sources

The influence of the presence of gasses in mineral oil on the ability of molecular sieves for water sorption [PDF]

open access: yesITM Web of Conferences, 2019
Previous studies has shown, that for the same relative humidity, the ability of molecular sieves to adsorb water in the air is higher than in mineral oil.
Cybulski Mateusz, Przybylek Piotr
doaj   +1 more source

Distance between consecutive elements of the multiplicative group of integers modulo n [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
For a prime number p, we consider its primorial P:=p# and U(P):=(ℤ/Pℤ)^× the set of elements of the multiplicative group of integers modulo P which we represent as points anticlockwise on a circle of perimeter P.
Steven Brown
doaj   +1 more source

PHYSICOCHEMICAL QUALITY CHARACTERISTICS OF BUCKWHEAT FLOUR [PDF]

open access: yesEngenharia Agrícola, 2022
The aim of this study was to characterize buckwheat flours produced using different processing methods, including with or without tegument removal and sieving with different mesh sizes.
Priscila A. Jara   +4 more
doaj   +1 more source

Seed size and its effects on the physiological quality of produced seeds [PDF]

open access: yesRevista Ciência Agronômica
The physiological quality of soya bean seeds is a determining factor in establishing the crop in the field. The aim of the present study was to evaluate the physiological quality of soya bean seeds produced by plants grown from seeds of different sizes ...
Alcimar Spindola Mazon   +4 more
doaj   +1 more source

Influence of Di erent Sieving Methods on Estimation of Sand Size Parameters [PDF]

open access: yes, 2019
Sieving is one of the most used operational methods to determine sand size parameters which are essential to analyze coastal dynamics. However, the influence of hand versus mechanical shaking methods has not yet been studied. Herein, samples were taken
Contreras de Villar, Antonio   +5 more
core   +2 more sources

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