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The analysis indicates the catalyst structure plays an important role on their performance.
It takes a soft fiber as its support, coating the active substance and glass fiber or ceramic fiber as a skeleton, therefore its structure is very hard.
It has relatively small number of load and generally small size of the reactor and low-load support structure.
They only differ in structures which will affect their catalytic performance and application greatly
[12] Huang Yan, Tong Zhiquan, Wu Bing, Zhang Junfeng:Journal of Fuel Chemistry and Technology 36 (2008), 616 [13] Su Hang: Power Protection 21 (2005), 27

Prociak et al. [12] studied the effect of three different types of polyols from bio-sources which have different chemical structures.
The foam prepared form the A210 at ambient temperature (full catalyst loading) show substantially higher open-cell content and distorted cell structure compare to the control.
Cell structure of the foams using Scanning electron micrographs (SEM).
[4] Ashida K ,2006, Polyurethane and related foams: chemistry and technology (CRC press)
[5] Cao X, Lee LJ, Widya T, & Macosko C ,2005, Polyurethane/clay nanocomposites foams: processing, structure and properties, Polymer 46(3),775-783

Doping modification will destroy the crystal structure of BP and affect the subsequent research and application of BP.
According to theoretical calculation, the adsorption sites of Li and Na atoms are at the hollow position of the fold structure of BP, and the adsorption sites of F and Cl atoms are at the position of the P atom on the top of BP [12].
The three characteristic peaks did not shift, and no new vibration peaks appeared, indicating that the BP structure did not change after intercalation modification.
The stability of BP and intercalated modified BP in air and water was systematically studied from the aspects of structure and performance.
Journal of Energy Chemistry. 67 (2022) 745-779

We find that the twist engineering applied to AGNR can alter the thermoelectric transport properties by modifying the electronic structures and phonon dispersion relations.
Recently, mechanically deformed graphene nanoribbons, such as strained[4-5], bended [6] and twisted[7] structures as well as intrinsic ripples, have attracted considerable attention: Pei shan Emmeline Yeo et al. found that the tensile strain applied to AGNR-N change the transport properties by modifying the electronic structures and phonon dispersion relationship, and the tensile strain increased the value for some types of AGNRs.
When twist angle is 0°, we can see that the transmission function of all AGNRs display reglar stepwise structure, which agree well with the previous study[3], it obviously imply that all electrons from the lead can pass through the center region without any scattering.
Panel(i)-(l) shown the almost antisymmetric structure of the Seebeck coefficient, because the subband is almost symmetric.
Journal of Materials Chemistry A, 1(36), 10762. (2013)

Twenty strains with various morphological structures were isolated from Cephalotaxus oliveri Mast, in which strain of gyzy-6 could produce HHT testified by TLC and HPLC analyzing the extracts from fermentation broth and were grouped into Schizophyllum sp. based on the Neighbor-Joining approach to reveal the internal transcribed spacer (ITS) sequence.
Natural products, characterized as small-molecule secondary metabolites that originate from terrestrial and marine plants, microorganisms and animals, tend to present more structurally diverse “drug-like” and “biologically friendly” molecular qualities than pure synthetic compounds at random, and are an important source of novel lead structures for the synthetic and combinatorial chemistry aspects of anticancer drug discovery[2].
Take mycelium onto the slide, after dyeing for 2 mins, observed the division structures of mycelium.
As was shown in Fig.2A, the growing rate was fast, and the loose and white fungus explants appeared little spore structure except for mycelial ring structures in Fig.2B.

The effects of amount of NBRP on mechanical properties and microscopic structure of NBRP-PF foam were investigated.
What's more, rigid structure and cell uniformity of phenolic foam resulted from adding of NBRP so that the bending strength did not improve and even declined. 2.2 Fragile Properties.
The influence of amount of NBRP on the microscopic structure of foam was analyzed by SEM, the microstructure of bubble pore were magnified 100 times, and the results were shown in figure 4 (a), (b), (c), (d) and (e).
It was consistent with results of mechanical performance analysis of bubble hole structure.
[13] Hartshorn S R．Structural Adhesive：Chemistry and Technology[M].New York：Plenum Press, 1986: 94-102

Son1, Anne Henry1, Viktor Ivády1,2, Adam Gali2,3, and Erik Janzén1 1 Department of Physics, Chemistry and Biology, Linköping University, Sweden 2 Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, Hungary 3 Department of Atomic Physics, Budapest University of Technology and Economics, Hungary aivani@ifm.liu.se, bandga@ifm.liu.se Keywords: transition metals, niobium, photoluminescence, Zeeman effect.
A model based on a an exciton bound at the Nb-centre in an asymmetric split vacancy configuration at a hexagonal site is proposed, which explains the structure of the luminescence spectrum and the observed Zeeman splitting of the lines.
Owing to the similarity of the structure of the Nb-related PL spectrum in 4H and 6H SiC, as well as similar valence-band structure (which will be involved in our model), only results concerning 4H SiC are presented in the rest of this paper.
Polarized PL spectra of (a) 4H, and (b) 6H SiC at higher temperature revealing together with the PLE spectra at 2K (bottom curve in each panel) the six lines associated with the structure of the excited state.
Consequently, if such “excited exciton” state exists it will also exhibit three levels reflecting the structure of the hole state inherited from the valence band, which may explain the appearance of the Nb3, Nb4 and Nb5 lines.

Ayyer et al. [1] studied the effects of micronized rubber powders on structures and properties of polypropylene composites.
It indicates that at 40 min treatment time, the highest number of epoxide structures is produced.
At longer treatment time (> 40 min), ring-opening of epoxide structures was observed.
The highest number of epoxide structures was formed at 40 min treatment time.
Kriz, in: Introduction to spectroscopy a guide for students of organic chemistry, edited by Thomson Learning Inc., USA (2001)

The paper reveals the issues related to the theoretical foundations of the cement stone structure and strength formation based on the alkaline activator.
The research results, in our opinion, are undoubtedly of practical importance for the construction industry, since the proposed recipes for clinker-free cements will replace the expensive and energy-consuming Portland cement, allowing to create strong and durable concrete and reinforced concrete structures.
Aluminum in the polymer skeleton gives a deficit of a positive charge, which in turn is compensated by alkaline cations firmly trapped in the structure of the aluminosilicate skeleton [3-5, 7, 14-16].
The issues related to the theoretical foundations of the structure formation and strength of the cement stone based on an alkaline activator remain poorly comprehended and require in-depth research.
Chemistry and applications.

The BNKLZT ceramics showed perovskite, homogeneous and dense structure.
The phase structure was characterized by x-ray diffractometer (XRD，PLXcel 3D, PANalytical) with Co Kα radiation.
It can be seen that the BNKLZT ceramics show homogeneous and almost fully dense structure without any second phase.
All ceramic samples show single perovskite structure.
Liu: Materials Chemistry and Physics, Vol. 108 (2008) No.2-3, p.413