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Development of fundamental knowledge in the field of chemistry of cementitious materials, increasing demands to materials- and energy saving, need for new effective adhesives for use in constructions - all this caused a necessity to intensify research and development activities in the field of new special cements.
Ground granulated blast-furnace slag was used as an additive to modify the structure of the geocements and to improve their physical and mechanical properties.
Congress on the Chemistry of Cement, Göteborg, Sweden, 1997, Vol.4, 4iv046:6
Mokhort, Formation of structure and properties of alkaline geocements, in: Tagungsbericht 14 Inter.
“Repair, Rehabilitation and Maintenance of Concrete Structures and Innovations in Design and Construction”, Seoul, South Korea, 2000, pp. 273-293

Accordance to the predicted secondary structure with npsa_hnn, there are 37 Alpha helix (27.41%), 34 Extended strand (25.19%) and 64 Random coil (47.41%) (Fig. 3).
Fig. 2 The Conserved Domain of chicken CRBP2 is 6～122 AA Fig. 3 Secondary structure predicted by npsa_hnn B.
Results of analysis indicated that the structure of chicken CRBP2 is similar to that of red jungles.
The Journal of Biological Chemistry, 283, 13510-13519, 2008 [3] H.Lin, L.F.Wang, J.L.Song, Y.M.Xie and Q.M.Yang.
The Journal of Biological Chemistry, 280, 24286-24292, 2005.

Synthesis of a novel D-A type photoelectrical matrerial: 5,5'-(9,9-dioctyl-9H-Fluorene-2,7-diyl)bis(thiophene-2-carbaldehyde) SUN Xiaoxia1,a*，TANG Zebiao1,b, HU Yu2,c* 1Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China 2Experimental Chemistry Center, Nanchang University, Nanchang 330031, Jiangxi Province, China asunxiaoxia77@126.com; btangzebiao88@163.com; chuyu@ncu.edu.cn Keywords: Donor-acceptor; Vilsmeier-Haack reaction; fluorene Abstract： A donor-acceptor organic molecule based on fluorene unit as an electron donor and aldehyde group as an electron acceptor has been demonstrated in high yields over four steps.
So far, a variety of D-A type molecules have been designed, where D is an electron donor, A is an electron acceptor, including dipolar, quadrupolar, octupolar and multipolar molecules.5–7 In the past, dimethylamino, diphenylamino, carbazoles and pyrroles used as electron donors, ketone, nitro, pyridine and benzothiazole used as acceptors have been reported.8–10 However, fluorene, as an electron donor, which has biphenyl structure with rigid plane, as well as large π-conjugated system, plays an important role in the donor-acceptor organic molecules.
Fluorene and its derivatives were extensively investigated and have been become active highlight in recent years, because of their special structures, various functional groups and being easily modified endowing their wide potential application in photoelectrical materials.11 In this paper, we investigate a new compound based on fluorene unit as an electron donor and aldehyde group an electron acceptor to construct the donor-acceptor organic molecule.
Structure-activity relationship in D-π-A-π-D-based photoinitiators for the two-photon-induced photopolymerization process.
Synthesis and structure-activity relationship of several aromatic ketone-based two-photon initiators.

Firstly, we compare the influences for the bridge structure bearing capacity from different projects.
This evaluation research mainly concerned the bearing capacity of the main bearing structure.
(2) Load test shows that: this bridge structure works at the range of elasticity; The the bearing capacity and stiffness of this bridge structure all meet design and standard requirements.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

Examination of XRD pattern shows the presence of those reflections which belongs to cubic spinel structure indicating the formation of single phase cubic spinel structure.
The doping of Ce-Al in nickel ferrite leads to canted spin structure.
The metal nitrate to fuel ratio was kept 1:4.4 as per the propellant chemistry approaches.
The observed reflections belong to cubic spinel structure.
Chemistry Central Journal, 2012. 6(1): p. 1-6

The 2- and 3-dimensional structure of Erlotinib and the ribbon structure of tyrosine kinase 1M17 was shown in Fig. 2.
(a) 2D structure of Erlotinib.
(b) Ribbon structure of Tyrosine kinase 1M17 and Erlotinib Table 2.
[5] Siswandono, Medicinal Chemistry, second ed., AUP, Surabaya, 2016
McMurry, Organic Chemistry, seventh ed., Thomson Brooks/Cole, Belmont, 2008

So, any prepared way or chemical approach must keep to the basis principles of ‘‘green chemistry’’ [16] that use environmentally benign impregnants and nontoxic chemicals.
The structure of TA is hydrolyzed tannin that is a mixed gallotannin form of gallic acid esters of glucose.
Fig. 1 Molecular structure of TA (C76H52O46).
These represent the nanoplate’s single crystal structure.
X-ray photoelectron spectroscopy (XPS) is a effectively tool in order to analyse the materials’ surface chemistry.

Introduction Superabsorbent polymers (SAPs) are loosely cross-linked hydrophilic polymers with three-dimensional structures that can absorb and retain large amount of aqueous fluids even under some pressure [1].
Like SAP, the polymer structure of SAF is also composed of the main chain backbone, hydrophilic groups and crosslinking groups, etc., and a three-dimensional network structure is formed through cross-linking technology, resulting in superior water absorbency and good water retention capacity over traditional water absorbing materials [2].
Meanwhile, much more hydrogen bonds between the carboxylic acid groups were formed owing to the protonation of carboxylic groups, leading to a more compact hydrogel network structure that restricts the movement and relaxation of network chains.
However, when the pH was higher than 9, the network structure began to collapse and the absorbency decreased sharply.
Flory: Principles of polymer chemistry (Cornell University Press, New York 1953)

., 47, 680021 Khabarovsk, Russia 2Federal State Budget Institution of Science Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center (ICTREMRM KSC), Russian Academy of Sciences, Akademgorodok, 26a, 184209 Apatity, Russia a*pikoul2008@gmail.com, bsidorov@chemy.kolasc.net.ru, cpalat_mn@chemy.kolasc.net.ru Keywords: lithium niobate single crystals, сonoscopic patterns, optical homogeneity.
In this regard, the actual scientific task of great practical significance is the detection of changes in the structure arising from a change in the ratio of Li/Nb and doping.
In addition, the ring form of isochrom, especially of high orders, undergoes local breaks and discontinuities in the presence of structure defects and optical anomalies [2].
The defect structure of crystals, associated with the nonuniform occurrence of an impurity, leads to a local change in the elastic characteristics of the crystal and the appearance of mechanical stresses that cause distortion of conoscopic patterns.
Rauber, Chemistry and physics of lithium niobate, Current topic in materials science, ed. by E.

Electromagnetic Shielding Properties of Metal Yarns Fabrics with Graphite Coating Marianna Grecka1, a *, Olegs Artamonovs2, b, Juris Blums3, c and Ausma Vilumsone1, d 1 Riga Technical University, Faculty of Material Science and Applied Chemistry, Institute of Design Technology, Kipsalas str. 6, Riga, Latvia 2Riga Technical University, Faculty of Electronics and Telecommunications, Institute of Radio Electronics, Azenes str. 12, Riga, Latvia 3Riga Technical University, Faculty of Material Science and Applied Chemistry, Paula Valdena str. 3/7-269, Riga, Latvia amarianna.grecka@rtu.lv, bolegs.artamonovs@rtu.lv, cblum@latnet.lv, dausma.vilumsone@rtu.lv Keywords: graphite, fabric, metal yarns, shielding Abstract.
Screens and shields can also be made of textile materials (woven and knitted fabrics, non-woven materials) with various structures of conductive yarns/threads, which consist of synthetic and natural fibers and as well as metals and even carbon [4, 5, 6, 7, 8].
The SE can be influenced by such factors as combinations of partly metal yarns, metal types in the yarn, orientation to the radiation source, the structure of the metal filament and additional coating of graphite layer.
Summary In this study, woven samples with various arrangements of yarns containing metal with different structures were produced and in addition coated with polyurethane and graphite layer.
Higher SE was observed for vertically located fabric samples, especially with metal monofilaments in the yarn structure.