Results 21 to 30 of about 115,812 (293)
A novel heterogenized Ni/β-diimine/SBA-15 complex applied for catalytic ethylene oligomerization
Results 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
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Influence of Di erent Sieving Methods on Estimation of Sand Size Parameters [PDF]
, 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
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Lacunar fractal photon sieves [PDF]
, 2007 We present a new family of diffractive lenses whose structure is based on the combination of two concepts: photon sieve and fractal zone plates with variable lacunarity. The focusing properties of different members of this family are examined.
Andersen +18 more
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The influence of the presence of gasses in mineral oil on the ability of molecular sieves for water sorption [PDF]
ITM 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
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Infinite dimensional parameter identification for stochastic parabolic systems [PDF]
, 1988 The infinite dimensional parameter estimation for stochastic heat diffusion equations is considered using the method of sieves.
Aihara, ShinIchi, Bagchi, Arunabha
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Distance between consecutive elements of the multiplicative group of integers modulo n [PDF]
Notes on Number Theory and Discrete MathematicsFor 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
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PHYSICOCHEMICAL QUALITY CHARACTERISTICS OF BUCKWHEAT FLOUR [PDF]
Engenharia 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
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Two Compact Incremental Prime Sieves [PDF]
, 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.
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Seed size and its effects on the physiological quality of produced seeds [PDF]
Revista Ciência AgronômicaThe 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
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Endeavour, 1964 AbstractThe zeolites form a numerous group of structurally diverse, porous, crystalline aluminosilicates. The naturally‐occurring zeolites arise by hydrothermal action of solutions in basaltic rocks and also as large sedimentary deposits. The naturally‐occurring species have been augmented by a number of synthetic zeolites without any known natural ...
openaire +1 more source