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Mechanical properties in bones can vary significantly as a result of differences in the arrangement of their structure, testing direction (anisotropy) and anatomical location [3 – 7].
A SEM Jeol (JSM-5610LV) was employed to characterise at RT the morphology and structure of the samples.
Gibson, Cellular solids structure and properties.
Sorichetti, Modification of the mesoscopic structure in neutron irradiated EPDM viewed through positron annihilation spectroscopy and dynamic mechanical analysis, Nucl.
Ibarz, Modern general chemistry, Marín, Barcelona, 1965

The electronic structure of colloidal QDs, which typically range from 3-12 nm in diameter, is dominated by quantum size effects.
Fig. 1: Structure of hybrid junction devices using CdSe, CdS and ZnS QDs The conducting layer is made of TPD that transport "holes" from the anode (ITO).
The figure shows the structure of (CdSe, CdS and ZnS) QDs EL device.
Krueger et al., Hole-Transporting Host-Polymer Series Consisting of Triphenylamine Basic Structures for Phosphorescent Polymer Light-Emitting Diodes, Journal of Polymer Science: Part A: Polymer Chemistry, Vol. 48, (2010), 3417–3430

The model The Fe3C structure was simulated as a calculation box with periodic boundary conditions consisting of 10×10×10 simple orthorhombic unit cells with lattice parameters a = 4.523 Å, b = 5.089 Å and c = 6.743 Å and 4 Fe atoms of type 1, 8 Fe atoms of type 2 and 4 C atoms per unit cell [18].
The structure and relative energy of cementite [12] have also been investigated by means of these potentials.
Using these preliminary results, in order to reveal the most likely movement scenario of carbon atoms in cementite, we calculate first the nearest neighbour distances (l) for all possible carbon atoms jumps in the perfect Fe3C structure with the lattice parameters given above.
[14] G.Simkovich, in: Selected topics in High Temperature Chemistry, edited by O.
[18] R.Wykoff: Crystal Structures (Interscience, New York 1964)

Antimicrobial Assay on PVDF Nanofiber Membrane Kanokwan Kitiniyom1,a*, Chonlada Suwanboon2 and Noppavan Chanunpanich2,3,b 1Department of Clinical Microbiology and Applied Technology, Faculty of Medicine, Mahidol University, Thailand 2Integrated Nanoscience Research Center, Science and Research Institute, King Mongkut’s University of Technology North Bangkok, Thailand 3Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Thailand akanokwan.kit@mahidol.edu, bnoppavan.c@sci.kmutnb.ac.th Keywords: Nanofiber, Antibacterial Membrane, disk diffusion, glucose fermentation Abstract.
Introduction Electrospinning has gained increasing process that created sub-micron to nanoscale fibers through an electrically charged jet of polymer solution/melt, obtaining high porosity due to interconnected open pore structure and small pore sizes in a range from tens of nanometer to several micrometers.
However, porosity of the membrane (Table 1) was still high because the mats were interconnected open pore structure.
The size and structure also affected to the poisoning of silver [23].
Xuguang, The structures and antibacterial properties of nano-SiO2 supported silver/zinc–silver materials, Dental mat. 24 (2008) 244-249

The novel approach lies in using cold spray for preform production, providing significant geometric flexibility while preserving the chemistry and microstructure of the feed powder.
Overall, the RS development in CS structures is highly complicated and may have multiple sources such as impinging gas, peening effect during deposition, thermal gradients developed at elevated temperature and differences in coefficient of thermal expansion (CTE) between the substrate and deposited powder.
The computational domain of the CSDT was comprised of structured hexahedral elements.
Considering this analysis, the CSDT predicted that the formation of porosity in the Ti6242 cold spray structure is highly likely due to large, i.e. +30 µm particles.
Roohi, Three dimensional investigation of the shock train structure in a convergent–divergent nozzle, Acta Astronautica 105 (2014) 117-27

Dias [4], Han H. [5], and Cui W. [6] depicted that the structure of polymeric fluid loss additive was the key point to the relatively high effectiveness of fluid loss control ability.
T. depicted the highly dispersed grafting polymer structure was beneficial to overcome unnecessary side effect when contacting with electrolyte matters, such as metal ions [8].
And PVAGB polymer showed excellent accelerating effect to cement early hydration speed when FLA A additive added, which was the performance superiority of PVAGB additive. 2) The crosslinked PVAGB polymer, for its molecular features, greatly contributes to the normal distribution of FLA A fluid loss control ability and complex structure of cement.
New structure found in a filter cake with the addition of an amphoteric polymer fluid loss additive.
Oilfield Chemistry, 2017, 34(3), 428-432

Mechanical, Thermal Properties of Virgin, Recycled and Mixed High-Density Polyethylene Matrices and Wood Plastic Composites with Plywood Sanding Dust Janis Kajaks1,a*, Karlis Kalnins1,b, Martins Zalitis1,c and Juris Matvejs2,d 1Riga Technical University, Faculty of Material Science and Apllied Chemistry, Department of Polymer Technology, Riga, LV1048, P.
The rather high deviation of results from parallel measurements of tensile and flexural tests (see Table 1 and Table 2) indicates the heterogeneity of the structure of composite materials.
Gonzalez-Sanchez, Mechanical recycling and composition effects on the properties and structure of hard wood cellulose reinforced high density polyethylene eco-composites, Composites: Part A. 69 (2015) 94-104.
Mirbagheri, Effects of multiple extrusions on structure-property performance of natural fiber high-density polyethylene biocomposites, Mater.
Structure. 161 (2017) 469-476.

Synthesis of Fe3O4 /TiO2-S Composite and its Activity Test as Photocatalyst on the Metanil Yellow Degradation Juliana Miftakhul Jannah1,a*, Eko Sri Kunarti1,b, Sri Juari Santosa1,c 1Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Gadjah Mada Sekip Utara, Yogyakarta 55281, Indonesia ajulianamiftakhuljannah@mail.ugm.ac.id, beko_kunarti@ugm.ac.id, csjuari@ugm.ac.id Keywords: photocatalyst, titanium dioxide, iron oxide, sulfur doping, composite metanil yellow, photocatalytic degradation, visible light.
This is due to the strain effect on the TiO2 lattice structure due to the inclusion of sulfur dopans that substitute for Ti4+ [17].
The photocatalyst that was reused was also tested for the stability of the material structure using XRD. 
The XRD diffractogram structure test of the reused photocatalyst though showed a decrease in magnetic properties after use, but qualitatively, the photocatalyst was still able to be attracted to an external magnet.
[18] Cravanzola, S., Cesano, F., Gaziano, F., and Scarano, D., Sulfur-Doped TiO2: Structure and Surface Properties, Catalysts, 7(7) (2017) [19] Bento, R.

The most pollutant in the nature source water is eliminated in form of particulate matter, and the source purification consists of four processes such as the coagulation (containing the chemistry medicament addition, rapid admixture and flocculation), clarification, precipitation and filtering, and the purifying flow is shown as Fig.1.
For example, here a flowchart of putting in coagulant dose is given as in Fig.2, and it is a flow structure with fuzzy control system.
Fig.2 Flow structure of putting in coagulation dose Control strategy of intelligence based fusion.
In order to obtain better control effect, based on the above analysis of process cybernetics, after fusing the expert system control knowledge and the improved strategy of human simulated intelligent controller (HSIC), the fusion control model structure is shown as in Fig.4.
Fig.3 Generalized control model Fig.4 Fusion control system structure In the clarification process, the control demand of coagulation process is the most highest in all the control subsystem.

This involves exploring porous materials like carbon-based structures (graphene, activated carbon materials, nonosheets, and nanotubes), zeolites, covalent organic frameworks, and metal-organic frameworks for storing hydrogen through physisorption.
Their performance can be improved by optimizing their pore structure and surface characteristics, which will maximize hydrogen uptake while maintaining the integrity of molecular hydrogen during the adsorption and desorption processes.
Design considerations for next-generation storage materials To maximize performance efficiency and cost reduction in hydrogen storage, the key parameter target for next-generation storage materials must balance multiple parameters, such as (i) gravimetric capacity greater than 5.5 wt% H₂ (reducing weight for transport), volumetric capacity greater than 40 g/L (maximizing onboard storage), operating temperature and pressure less than 85°C, and 100 bar (integration with fuel cells), life cycle greater than 1,500 cycles (durability for vehicles), material cost less than $5/kg (meet system cost targets), and (ii) design consideration strategies involve modular nanostructure modifications to enhance surface area and pore structures, which will significantly improve hydrogen diffusion and reversibility.
First, by developing lightweight metal hydrides, which involves in-depth exploration and understanding of new alloys and complex metal hydride structures.
Designing the next generation of storage materials requires a multi-disciplinary approach that combines chemistry, engineering, and economics.