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School of Chemistry, College of Science, University of Tehran, Tehran, Iran 2)M.S. student Chemical Eng.
The effect of NF content on morphology, chemical structure and thermal behavior properties of composite films were investigated.
FTIR was used to examine any changes in the chemical structure of samples.
The MCC lose their structure almost completely after 15 passes, resulting in aggregates of small fibers, indicating that the MCC was completely isolated to the level of nano size, meaning less than 100 nm.
In two curves, the peaks are observed at 2θ=14.7, 16.2 and 22.7, corresponding to a Cellulose I structure.

Sulfate attack is incurred to concrete structures by salts and solutions of sulphate bearing compounds, most commonly sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4).
The Ca-rich gel such as C-S-H like OPC could have severely deleterious effects on these materials, while N-A-S-H gel systems at the same concentration appeared to have little or no effect on the structure of the material. 3.
The Ca-rich gel such as C-S-H like OPC can have severely deleterious effects of these materials, while N-A-S-H gel systems at the same concentration appear to have less effect on the structure of the material. 4.
Green chemistry and sustainable development solutions chimie verte et solutions pour le développement durable.
[13] M.W.Hussin, M.A.R.Bhutta, M.Azreen, P.J.Ramadhansyah, J.Mirza, Performance of blended ash geopolymer concrete at elevated temperatures, Material and Structures, DOI 10.1617/S11527-0140251-5 Jan 2014

It is found that the ESM has aninterwoven network structure formed by several fibers arranged without a particular direction.
Table 1: Elemental composition of ESM, CESM, TiO2-ESM and TiO2-ESM Element ESM CESM TiO2-ESM TiO2-CESM C 0.00 80.74 1.41 4.58 O 74.28 18.14 40.31 41.10 K 0.12 0.00 0.07 0.00 Na 10.03 0.00 2.51 0.00 Ca 7.97 0.00 3.22 0.00 Al 2.86 0.00 2.01 0.00 Ti 0.00 0.00 46.08 51.86 S 2.39 1.12 2.35 0.06 Nb 2.35 0.00 2.04 2.40 The XRD patterns result indicate that the structure of ESM and CESM exhibited characteristic peaks of calcite (JCPDS No. 05-0586).
Meanwhile, the XRD patterns results show that the structure of TiO2 and TiO2-CESM were anatase and TiO2-ESM identified as a mixed phase with a crystallite size of 22.39 nm, 22.42 nm and 24.69 nm, respectively.
The prepared TiO2 decorated ESM showed unique properties such as morphology, crystalline structure, and photocatalytic activity.
Gong, Aluminum-incorporated p-CuO/n-ZnO photocathode coated with nanocrystal-engineered TiO2 protective layer for photoelectrochemical water splitting and hydrogen generation, Journal of Materials Chemistry A 6(25) (2018) 11951-11965

Currently a lot of the main structure and some parts of detail construction, all have adopted the practice of using a combination of rigid material, good waterproof effect.
The following table1 is a waterproof technical indicators of ZYY: Table1 Waterproof Technical Specifications Project Technical Specifications 7 days compressive strength of cement paste ≥13MPa 7 days flexural strength of cement paste ≥3MPa 7 days impermeability pressure (coated) ≥0.4MPa 7 days bonding strength ≥1.4MPa Heat resistance，100℃，5h No cracking, peeling, shedding Freeze-thaw cycles（－15℃～20℃），20 bout No cracking, peeling, shedding Under pressure grouting, low viscosity, single component polyurethane chemical grout into the cracks inside, once contact with water, water as a curing agent for polyurethane chemistry slurry, curing polyurethane 2 to 3 times the volume expansion, at this point they form “secondary chemical pressure” order to fill in the cracks in PU full internal.
Tube roots, floor drain port structure constructed at the corner and other details, treatment should be enhanced.
Tube roots, structure constructed at the corner and other details should be enhanced handling.
Conclusions The construction program after application in tunnel engineering has played a good waterproof effect, to meet the design requirements, from the construction process found out that the construction process is simple, the construction of grass-roots do not ask, you can wet the surface of base construction, temperature and humidity changes have little effect on its construction, construction progress faster construction behind layer formation, which will help the next part of the construction; particularly worth mentioning is that the polymer cement-based waterproof coating layer to the adhesive layer combined with waterproof layer, bonding effect, waterproof effect is not reduced, the elongation of the structure crack extension has played a good waterproof safeguard.

The increasing use of high performance computing technology to solve practical problems in scientific research and production, research, applications involving nuclear materials for nuclear weapons storage simulation, oil exploration, biological information technology, medical and drug research, computational chemistry, meteorology, weather and disaster forecasting, industrial process improvement and environmental protection and many other fields of high performance calculation [12].
These applications are from different fields, such as quantum physics, weather forecasting, climate research, molecular simulation (calculation of chemical elements, structure and composition of biological macromolecules, polymers and crystals), physical simulation (such as the research of the flight simulation in the air duct of the aircraft and nuclear fusion), cryptanalysis, and aimed at the seismic processing oil mining.
The parallel algorithm is basically a shallow and wide algorithm structure, is actually the serial algorithm and the high time complexity of compression ratio by increasing the space complexity of the algorithm, the previous structure reconstruction of an operation of a cycle to execute a parallel algorithm of a cycle can be a plurality of operation.
At present, the visualization in scientific computing has been widely used in computational fluid mechanics, finite element analysis, medical image processing, molecular structure model, astrophysics, space exploration, earth science, mathematics and other fields[15].

Department of Chemistry, University of Yangon, Yangon 11181, Myanmar *Corresponding author: chqm99@yahoo.com Keywards: La1-xCaxMnO3; Co-precipitation method; Polycrystalline ceramics Abstract: Manganite perovskite La1-xCaxMnO3 (x=0.33, 0.5 and 0.9) have been prepared by chemical co-precipitation method.
In the present work, we have prepared La1-xCaxMnO3 (LCMO) polycrystalline powders and ceramic ceramics by chemical co-precipitation method and studied their crystalline structure and electrical transport property.
It is evident that all the samples show single-phase of the perovskite structure.
Conclusion Polycrystalline La1-xCaxMnO3(x=0.33, 0.5 and 0.9) have been successfully prepared by co-precipitation method and their structures, electrical transport properties in bulk polycrystalline are investigated.
Interaction between the d-shells in the transition metals II ferromagnetic compounds of manganese with perovskite structure, Phys.

Synthesis of carbon-sphere@TiO2/Cu core-shell Composites and the Studies on Their Photocatalytic and Antibacterial Properties Hongyan Wanga, Hongliang Lib, Hui Liuc, Aiping Fud, Guangwei Kane and Qiao Wangf Laboratory of New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Chemistry, Chemical Engineering and Environment, Qingdao University, Qingdao 266071, China.
In recent years, the core-shell and hybrid structures have been widely investigated because such structures can increase the surface area and exhibit novel properties.
The crystal structures were determined on a Bruker D8 powder X-ray diffractometer (Cu Kα l=1.540598Ả).The morphology of the samples were analyzed using a JEOL JSM-6390LV scanning electron microscopy (SEM) and a JEM-2010F transmission electron microscopy (TEM).
Normally, the anatase phase is formed below 500°C and ordinarily starts to transfer to a rutile-type structure above 600 °C.

The strong field strength of Ca2+ lead to the accumulation effect in the glass structure [15], the short range order and crystallization tendency became obvious and facilitated the crystallization of glass.
On the one hand, Zn2+ with high field strength shows the obvious order effect on the O2- around it and the potential phase separation may occur [19], which resulted in the easy formation of local order structure and the drastic increase of softening temperature (10#→12#).
On the other hand, the local order structure will be destroyed and back to disorder state with the increase of ZnO content, which resulted in the slow increase of softening temperature (12#→13#).
Kim, Effect of glass frit chemistry on the physical and electrical properties of thick-film Ag contacts for silicon solar cell, J.
[19] G.Chen, Effect of ZnO on structure and properties of MgO-A12O3-SiO2 system glass, Chin.

The structures of ILs are shown in Fig.1.
The structures of the ionic liquids were confirmed by 1H NMR (Bruker Avance 500 spectrometer), FTIR (SHIMADZU 8400S) and elemental analysis (CHNS -932, LECO instruments).
Figure 1 Structures of the ILs with dicyanamide anions A coulometric Karl Fischer titrator, DL 39 (Mettler Toledo), was used to determine the water content of the ILs using Hydranal coulomat AG reagent (Riedel-de Haen).
Hydroxyl functionalized has higher density possibly having compact structure due to more hydrogen bonding [16].
Filipe, On the critical temperature, normal boiling point, and vapor pressure of ionic liquids, The Journal of Physical Chemistry B, 109 (2005) 6040-6043

Introduction FCA was introduced by Rudolf Wille as a mathematical theory in 1982[1], which has gained its popularity for the formalization of concepts and explicitly representing human concept thinking ever since then, now it has evolved into a learning technique for conceptual structures discovering in data.
Another important research topic in the FCA community is information retrieval covering 13% of the papers. 36 of the papers on information retrieval describe a combination with a KDD approach and in 27 IR papers authors make use of ontologies. 15IR papers deal with the retrieval of software structures such as software components.
The representation of FCA makes the inherent logical structure of the information transparent which promoted the efficient retrieval of relevant information greatly.
Because a document-term lattice structures the available information as clusters of related documents which are partially ordered, lattices can be used to make suggestions for query enlargement in cases where too few documents are retrieved.
Web mining and improving the quality of web search results is investigated in 8% of the KDD papers(Beydoun et al. 2007, Beydoun 2009, Myat at al 2005, Hsieh et al.2007).Other applications include multiple extensions introduced into the literature that improve traditional FCA theory’s applicability to knowledge discovery problems(Belohlavek et al. 2009, Pogel et al. 2008, Cellier et al 2008 etc).About 10% of the KDD papers describe applications of FCA in biology, chemistry or medicine. 3.4 FCA in software engineering.