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Introduction Polyhedral oligomeric silsesquioxane (POSS), depicted by a formula of (RSiO1.5)n or Tn (where n is an even number and R=H, Cl or a variety of organic groups), is a unique class of materials that has emerged as recently in polymer chemistry[1,2].
The L-BFGS[7,8] algorithm is used to optimize the structures and the energies of the molecules and the atomistic models after deformation.
When the optimized structures have been obtained the resultant forces along the tensile direction of the tensile atoms at the right side of the atomistic models can be calculated.
Micro Voids The structure deformations of the two kinds of polymers under different tensile strains are shown in Fig.6 and 7.
Fig. 6 Structures of PS under different strains Fig. 7 Structures of P-POSS-PS under different strains Summary POSS can improve the mechanical properties of polymers effectively.

An Expert Controller Based On Transient Response Patterns Ning Zhang1，a, Ronghua Liu1.b 1Beijing Institute of Petro-Chemistry Technology, Beijing, China azhangning@bipt.edu.cn, bliuronghua@bipt.edu.cn, Keywords: Expert control, transient response patterns, performance criterion Abstract An expert control system based on transient response patterns and expert system techniques is proposed in this paper.
Here expert control is defined as the construction of a composite control structure managed by an expert system which monitors process parameters and system performance.
Basic structure of the expert control system The basic structure of a rule-based control system is shown in Figure 3.
Fig.3 Basic structure of the expert control system (1) system data base System data base contains three types of data: facts, real-time data, and goals.
During pretuning phase, the system determines the structure of the controlled process automatically.

However, in this case, Ps is treated as a 3D particle without the internal structure, localized in 3D sphere.
We suppose that the 2D Ps should be created in atomic structures where part of electrons is in the 2D state.
Low valence electron density in such structures should help in creation of 2D Ps.
The well known result of the bubble model of Ps without internal structure for comparison was depicted as well.
Jean, “Positron and Positronium Chemistry” eds.

More modern method of porosity measuring is 3D X-Ray Tomography (XRT) – it uses special x-ray equipment to obtain 3D structures [10].
Image Acquisition A detailed picture of the micro-structure was obtained using a Leica-DMI5000 optical microscope equipped with a Thixomet image analysis system.
Sections for studying the structure of the metal were cut and polished using the Buehler grinding system.
Glass Physics and Chemistry. 2018 May 1;44(3):234-7.DOI: 10.1134/S1087659618030057 [4] B.A.
Makhin, Methods of overlapping closed joints in friction stir welding of thin wall structures made of aluminium alloys.

(1) Within 15 minutes after mixing whole amount of hydrogen is released, what causes approximately 200 – 400% volume expansion and the formation of porous structure.
The autoclave provides hydrothermal conditions for the formation of several minerals structures of calciumhydrosilikates such as Hillebrandite 2CaO·SiO2·H2O, Afwillite 3CaO·2SiO2·3H2O or Xonotlite 6CaO·6SiO2·H2O.
However, the highest priority belongs to 11Å Tobermorite which is the main mineral structure responsible for final mechanical properties especially for compressive strength and strength in bend.
Metakaoline (year of production: 2009) was provided by the Faculty of chemistry, BUT.
It was not investigated if metakaoline influences the formation of Xonotlite or other undesirable structures in AAC technology.

Congress on the chemistry of cement, Gothenburg, Sweden, 4 (1997) 4iv046
Conference on repair, rehabilitation and maintenance of concrete structures and innovations in design and construction.
Mokhort, Processes of Physico-Chemical Structure Formation in Modified Geocements.
Kryvenko, Influence of the ratio of oxides and temperature on the structure formation of alkaline hydro-aluminosilicates: J.
Guzii, Influence of the ratio of oxides and temperature on the structure formation of alkaline hydro-aluminosilicates, Eastern European Journal of Enterprise Technologies 5 (83) (2016) 40-48

The obtained long nanowires with a perfect single-crystalline structure and a smooth surface are up to several hundreds micrometer in length characterized using FESEM.
Clearly, the single long Si3N4 nanowire with a perfect apperent confirms the prediction that the sample has a great orientational growth in XRD parrern, and shows that the nanowire has a single-crystalline structure.
If Si3N4 precipitates along a pair of adjacent planes at the same time as shown in Fig 5(b), a herring-bone structured Si3N4 will form with the platelets aligned at an angled to the axis.
The growth direction changes frequently during growth, producing a spiral shaped structure.
[8] Fengmei Gao, Weiyou Yang, Yi Fana, Linan An: J. of Solid State Chemistry Vol. 181 (2008), p.211

Mu 2,e 1 National Incubation Base for Nano-Biomaterials Industralization,Sichuan University,China 2 Chemistry College, Sichuan University, China a zzxl-1@163.com,b Lyb890130@263.net,czoae@vip.sina.com,d lgyhxy@yahoo.com.cn, e myh25@163.com ∗Corresponding author Keywords: Nano-hydroxyapatite; Polyamide 66; Biocomposites; Crystallization behavior; Mechanical properties Abstract.
Considering that polyamides have the similar amide structures with proteins, Yubao Li et at [9-11] developed a novel biocomposites with nano-hydroxyapatite (n-HA) reinforced polyamide 66 (PA66) for load bearing bone repair.
Results and discussion 3.1 Crystal structures of pure PA66 and n-HA/PA66 Fig.1 shows that the influences of the annealing temperature on the crystalline property of the pure PA66 at 90MPa injection pressure by XRD.
It is interested that the peaks of α1 phase of PA66 disappear with the introduction of n-HA, and the peaks of α2 become wide and the intensities of the α2 peaks decrease, which proved that the addition of n-HA changes the structure of the crystalline phase.
Thermoplastic polymers in biomedical applications: structures, properties and processing.In: Black J, Hastings G, editors.

Because functional complex ply yarns with higher wrapped density had tighter and compacter structures, and the maximum breaking elongation for complex ply yarns also increased relatively.
When wrapped density was too low, the structure was looser so the wrapped yarns with little effect.
Because the wrapped density of complex ply yarns was too little, the structure was less compact.
Therefore, the maximum breaking force for knitted fabrics (inlaid yarn) was depend on the structure of the complex ply yarns.
Hagler: Handbook of Fiber Science and Technology, Volume IV Fiber Chemistry," Chapter 4, 371-502

The polymerization mechanism will be elucidated in order to control the primary structure of generated macromolecule.
Conditions: voltage ±4 kV, career gas flow 0.45 L/min, distance 5 mm Ar Results and Discussion Gas-Phase Chemistry The OES of the Ar plasma jet is showed in Fig. 2.
Chemical Structure of the Plasma-polymerized Material Taking the monomer of HEMA for an example, the FT-IR spectra of the polymerized films are shown in Fig.7 with changing the applied voltage and the monomer feed ratio.
In addition, the structure of the product did not change even when adjusting the voltage and carrier gas rate.
Conclusions By using CAPPLAT atmospheric pressure discharge, three kinds of monomers of which HOMO-LUMO energy differences are close to the Arm energy were polymerized with retaining the primary structure.