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At the same time, materials often experience repeated temperature hot and cold cycle in the practical application process, forming strain lag and residual plastic deformation, which will affect the accuracy of composite components and lead to distortion of the transmitted signal, thereby affecting the stability and security of the space structure [8].
Materials Chemistry and Physics. 86(2004) 204~209 [11] Zechao Tao, Quangui Guo, Xiaoqing Gao, Lang Liu, Graphite Fiber/Copper Composites with Near-Zero Thermal Expansion.

The crystal structure and phase composition of the Al/epoxy composites were researched via X-ray diffraction (XRD).
Materials Chemistry and Physics, 2016, 170: 113-117

Badea4 1 UMF Iuliu Hatieganu, Department of Dental Propaedeutics and Aesthetics, Cluj-Napoca, Romania 2 Raluca Ripan Institute of Chemistry, UBB, Cluj-Napoca, Romania 3 UMF Iuliu Hatieganu, Department of Pediatric Dentristry, Cluj-Napoca, Romania 4 UMF Iuliu Hatieganu, Department of Preventive Dentistry, Cluj-Napoca, Romania 1 mesaros.anca@umfcluj.ro , 2 gfurtos@yahoo.co.uk, 3 michaela.mesaros@umfcluj.ro, 4badea.mindra@umfcluj.ro Keywords: Shear-bond strength, Orthodontic Adhesives, Tooth Morphology, Grip, Lloyd Instruments Abstract.
This recommendation is for preventing damage to the tooth structure.

The principle, structure, fabrication and response characteristics of the sensor are reported.
Physical Organic Chemistry. 18 (8) (2005) 785–91

Influence of Chemical Admixtures on Properties of Alkali-Activated Slag-Based Mortars Vlastimil Bílek Jr.1, a *, Lukáš Kalina1,b, Jan Koplík1,c, Radoslav Novotný1,d, Miroslava Hajdúchová1,e and Tomáš Opravil1,f 1Brno University of Technology, Faculty of Chemistry, Materials Research Centre Purkyňova 464/118, 612 00 Brno, Czech Republic axcbilekv@fch.vutbr.cz, bkalina@fch.vutbr.cz, ckoplik@fch.vutbr.cz, dxcnovotny2@fch.vutbr.cz, exchajduchova@fch.vutbr.cz, fopravil@fch.vutbr.cz Keywords: Alkali-activated slag, shrinkage-reducing admixture, air-entraining admixture, shrinkage, workability, strength Abstract.
These differences in the drying shrinkage rate were probably caused by the differences in the structure and porosity of the mortars considering the markedly lower strength values at the age 24 hours and 7 days of the mortars with 1.0% and 2.0% of SRA than those of other mortars.

Introduction Nanoscale structures and materials have been explored in many biological applications because their novel properties and functions drastically differ from their bulk counterparts.
The merging of different disciplines such as bioengineering, materials science, chemistry, physics, biology, as well as medicine, will be essential for the successful exploration of the applications of nanomaterials inside cells, and for effective and realistic applications in the clinical practice.

Introduction Accurate and sensitive determinations of heavy metal ions in water or other food are the important part of analytical chemistry studies.
Characterization of carbon-coated iron nanoparitcles As shown in Fig.1 the carbon-coated iron nanoparitclesis comprised of uniform spherical nanoparticles with the diameter between 30 and 50 nm, and they have a core-shell structure.

Developing new coagulants is considered as one way of enhanced coagulation and can avoid reforming structures of existing coagulants.
References [1] CAO BaiChuan, GAO BaoYu, YUE QinYan, FU Ying & XU ChunHua: SCIENCE CHINA Chemistry March 2010 Vol.53 No.3: 1-7 [2] Cheng, W.

Novel Pt-Tm/Carbon Nanocomposite for the Catalyst of Direct Methanol Fuel Cell Sang Mock Lee 1,a , Jang-Hoon Chung,2,b* 1 Energy &Materials Research Center, Samsung Advanced Institute of Technology, Yongin, Kyunggido 446-712, Korea 2 Department of Chemistry and Department of Nano Science and Engineering, Myongji University, Yongin, Kyunggido 449-728, Korea.
However, many hydrocarbons are considered as fuel for the cell due to the limited infra structure of hydrogen storage and transportation.

Treatment of waste seawater from shrimp farm using a photocatalytic membrane reactor Shi Zaifenga Zhang Suminb Guo Suc College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou, China 571158 aemail: zaifengshi@163.com, bemail: zsm@hainnu.edu.cn, cemail: gslzgs@hotmail.com Keywords: Wastewater; shrimp farm; photocatalytic; membrane.
The initial rise of CODCr might due to that some organics in wastewater, which were difficult to be oxidized by potassium dichromate at beginning, became easy to be oxidized because of chemical structure being changed by the photocatalytic reaction.