Results 21 to 30 of about 27,028 (268)

Structural Sieves

open access: yesCoRR, 2021
This paper explores the use of deep neural networks for semiparametric estimation of economic models of maximizing behavior in production or discrete choice. We argue that certain deep networks are particularly well suited as a nonparametric sieve to approximate regression functions that result from nonlinear latent variable models of continuous or ...
openaire   +2 more sources

STUDY OF THE PROCESS OF CALIBRATION OF CONFECTIONERY SUNFLOWER SEEDS

open access: yesHarčova Nauka ì Tehnologìâ, 2018
The aim of the research was to make the mechanical and technological process of calibrating confectionery sunflower seeds with a vibrating sieve more effective by giving reasons for its rational methodical and technological parameters.
I. Shevchenko, E. Aliiev
doaj   +1 more source

The affine sieve

open access: yesJournal of the American Mathematical Society, 2013
The authors establish the main saturation conjecture connected with executing a Brun sieve in the setting of an orbit of a group of affine linear transformations. This is carried out under the condition that the Zariski closure of the group is Levi-semisimple. It is likely that this condition is also necessary for such saturation to hold.
Golsefidy, Alireza Salehi, Sarnak, Peter
openaire   +4 more sources

Structural and Textural Properties of Al/Cu- and Al/Zn-Pillared Clays for Ethanol Conversion

open access: yesCrystals
A montmorillonite sample was pillared using mixed solutions of Al/Cu and Al/Zn as the pillaring agent. Al/Cu- and Al/Zn-pillared clays were applied in an ethanol conversion reaction.
Lamara M. dos Santos   +4 more
doaj   +1 more source

Application Research on the Adsorption of Cadmium Ion in Wastewater by Zeolite Molecular Sieve

open access: yesChemical Engineering Transactions, 2018
In this paper, the synthetic zeolite molecular sieve is used as the adsorbent to study the application of zeolite molecular sieves for the adsorption of cadmium ions in wastewater.
Minghua Wang, Honglan Cai, Jiang Zhang
doaj   +1 more source

Separation of steranes and hopanes by domestic X-type molecular sieves

open access: yesShiyou shiyan dizhi, 2021
Domestic 10X-type and 13X-type molecular sieves were used for the adsorption and desorption experiments of steranes and hopanes, and their stable carbon isotopic fractionation by the two kinds of molecular sieves during separation process was discussed ...
Erting LI   +7 more
doaj   +1 more source

Density Functional Theory Study on the Effect of Isomorphic Substitution of FAU Molecular Sieve on N2 Adsorption Performance

open access: yesAdvances in Condensed Matter Physics, 2021
Low pressure and anoxia are the main characteristics of the environment in the Tibetan Plateau, which means people living there have a large demand for oxygen to reduce the symptoms of altitude sickness.
Mengya Wang   +9 more
doaj   +1 more source

Hydroisomerization of n-Hexadecane Over Nickel-Modified SAPO-11 Molecular Sieve-Supported NiWS Catalysts: Effects of Modification Methods

open access: yesFrontiers in Chemistry, 2022
The complexation-excessive impregnation modification method, which was original in this study, and the ion-exchange method and the in situ modification method were used to synthesize Ni-modified SAPO-11 molecular sieves.
Xiaojun Dai   +4 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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