Single-step preparation of zinco- and aluminosilicate delaminated MWW layers for catalytic conversion of glucose

2021 ◽  
Author(s):  
Hyung-Ki Min ◽  
Sungjoon Kweon ◽  
Sohun Oh ◽  
Hyejin An ◽  
Yun Hye Cho ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Molecular Diffusion ◽  
Catalytic Conversion ◽  
Single Step ◽  
Two Dimensional ◽  
Active Centers ◽  
Highly Dispersed

Two-dimensional (2D) molecular sieves with highly dispersed active centers have great potential as catalysts for the transformation of bulky biomass derivatives owing to the ease of molecular diffusion and the...

Catalytic conversion of furfural to methyl levulinate in a single-step route over Zr/SBA-15 in near-critical methanol

2018 ◽  
Vol 333 ◽  
pp. 434-442 ◽  
Author(s):  
Hao Chen ◽  
Houhang Ruan ◽  
Xilei Lu ◽  
Jie Fu ◽  
Timothy Langrish ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Single Step ◽  
Methyl Levulinate

scholarly journals On the determination of step energies. Theoretical considerations and application to an anisotropic Kossel model

2006 ◽  
Vol 39 (4) ◽  
pp. 563-570 ◽  
Author(s):  
M. A. Deij ◽  
J. H. Los ◽  
H. Meekes ◽  
E. Vlieg
Keyword(s):  
Lattice Models ◽  
Single Step ◽  
Spiral Growth ◽  
Growth Theory ◽  
Two Dimensional ◽  
Island Growth ◽  
Growth Step ◽  
Step Flow ◽  
Theoretical Considerations

Steps on surfaces are important in crystal growth theory, as the step free energy determines the two-dimensional nucleation rate, island growth, step flow and spiral growth. In this paper, it is illustrated that in general in lattice models the step energy of a single step cannot be determined directly by counting broken bonds. A new method is proposed that uses the geometry of a step together with the bonding topology, allowing for a straightforward determination of single-step energies for any case. The method is applied to an anisotropic Kossel model.

scholarly journals Dynamic Reliability Modeling of Three-State Networks

2014 ◽  
Vol 51 (4) ◽  
pp. 999-1020 ◽  
Author(s):  
S. Ashrafi ◽  
M. Asadi
Keyword(s):  
Network Structure ◽  
Single Step ◽  
Two Dimensional ◽  
Reliability Modeling ◽  
Stochastic Orderings ◽  
Dynamic Reliability ◽  
Network States ◽  
Dynamic Signature ◽  
Stochastic Properties ◽  
Residual Lifetimes

This paper is an investigation into the reliability and stochastic properties of three-state networks. We consider a single-step network consisting of n links and we assume that the links are subject to failure. We assume that the network can be in three states, up (K = 2), partial performance (K = 1), and down (K = 0). Using the concept of the two-dimensional signature, we study the residual lifetimes of the networks under different scenarios on the states and the number of failed links of the network. In the process of doing so, we define variants of the concept of the dynamic signature in a bivariate setting. Then, we obtain signature based mixture representations of the reliability of the residual lifetimes of the network states under the condition that the network is in state K = 2 (or K = 1) and exactly k links in the network have failed. We prove preservation theorems showing that stochastic orderings and dependence between the elements of the dynamic signatures (which relies on the network structure) are preserved by the residual lifetimes of the states of the network (which relies on the network ageing). Various illustrative examples are also provided.

Catalytic conversion of glucose into lower diols over highly dispersed SiO2-supported Ru-W

2019 ◽  
Vol 129 ◽  
pp. 105731 ◽  
Author(s):  
Yi Liu ◽  
Yuliu Liu ◽  
Qing Wu ◽  
Yi Zhang
Keyword(s):  
Catalytic Conversion ◽  
Highly Dispersed

Two-dimensional Talbot array illuminators with single-step phase grating

1996 ◽  
Vol 13 (1) ◽  
pp. 126 ◽  
Author(s):  
Xiao-Yi Da ◽  
Qu-Quan Wang ◽  
Xin-jian Xue
Keyword(s):  
Single Step ◽  
Two Dimensional ◽  
Phase Grating

Formation of Two-Dimensional Crystals of Membrane-Anchored and Water-Soluble Proteins

1993 ◽  
Vol 330 ◽  
Author(s):  
Harald Engelhardt ◽  
T. Scheybani ◽  
W. Von Gustedt ◽  
W. Baumeister
Keyword(s):  
Molecular Sieves ◽  
Soluble Proteins ◽  
Water Soluble ◽  
Biological Macromolecules ◽  
Complex Structures ◽  
Two Dimensional ◽  
Protein Species ◽  
Future Developments ◽  
Multiple Protein ◽  
Support Devices

ABSTRACTThe formation of two-dimensional (2-D) crystals of biological macromolecules is of interest for nanotechnological applications. Protein 2-D crystals may be used as molecular sieves and/or support devices as components of biosensors etc. [1]. Functionally specialized 2-D crystals, containing transport or catalytic proteins, provide a certain function in a highly efficient and vectorial manner. Future developments may allow the design of more complex structures such as multilayers made from different proteins or arrays of functionally linked oligo- or multimeric complexes consisting of multiple protein species [2]. Regular 2-D arrays, either truely crystalline or densely packed molecules, are one of the basic structures taht might be used to construct more sophisticated protein-based devices. 2-D crystals have some interesting features:

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