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Nisaratanaporn1, d * 1Innovative Metals Research Unit, Department of Metallurgical Engineering, Chulalongkom University, Bangkok, 10330, Thailand 2Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand 3Faculty of Gemological Science and Applied Arts, Rambhai Barni Rajabhat University, Chanthaburi, 22000, Thailand asakultan@gmail.com, btchairuangsri@gmail.com, csuttawani@gmail.com, dekasit.n@chula.ac.th Keywords: Silver alloys, Sterling silver, Resiliency, Heat treatment, Microstructure, Electron microscopy.
In the micrograph of RA alloy (figure 3b and 3c) it was found that the eutectic structure was partly dissolved and also spheroidized after passing homogenization or solutionization.
In figure 4e, instead of Ag-Cu eutectic structure, the second phases occurred when the beryllium and tin were added.

Reactive Blue 19 (their structures were listed in Fig.1) were obtained from Shanghai Dyestuff Co. and were used as received.
Structures of the dyes applied 2.2 Pretreatment Dip-pad-bake procedure was applied in pretreatment.
Dyeing cationic cotton with fiber reactive dyes: Effect of reactive chemistries.

The presence of hydroxyl (-OH) groups in the structure was predicted to possibly start a reduction process based on the polyol synthesis mechanism.
There are 2 hydroxyl groups in the propane structure, which is at position 1 (primary), and in hydrogen at position 2 (secondary).
Coordination Chemistry Reviews Vol. 357 (2018), pp.1–17

Introduction During the past few decades, MEMS (micro-electro-mechanical-systems) technologies have benefitted, propelled, and transformed the field of biology, chemistry, medicine, and electronics with innovative and promising micro/nano devices [1].
In this paper, we present a high air bubble tolerance, simple structure, high flow rate, low cost, and easy operation peristaltic pneumatic pump completely driven by vacuum principle.
All the micropump’s structures are fabricate from PDMS and by MEMS fabrication technology.

The main research interests include the preparation of carbon nanotube, structure of CNTs, chemical characteristics, mechanical properties, thermal properties, electrical properties of CNTs and etc [2-8].
The carbon nanotubes used were provided by the Chengdu organic chemistry Ltd, Chinese Academy of Sciences.
Mou: Nano Materials and Structure (Science Press, Beijing, China, 2001)

Existing researches on the absorbing properties of cement-based materials show that adding nano-materials can improve the performance of wave absorbing, 10-15mm thick samples made from cement mixed with nano-TiO2 powder were found very effective within 2-18GHz spectrum.[6-9] In this paper, the electromagnetic wave absorption performance of modified cement base material were studied, this research has important academic value in the development of large span structures’ camouflage technology, and improving stealth properties of concrete structures, etc.
[8] Zhang Haijun，Liu Zhichao，Ma Chenliang，etc．Preparation and microwave properties of Co- and Ti-doped barium ferrite by citrate sol-gel process[J]．Materials Chemistry and Physics, 2003，80129-134

Basic principles of the electrochemical test system The structure of this simply constructed electrochemical test system is shown in Fig. 1.
Ready-for-use components such as displays, buttons, and control elements are placed in the front panel, and the program panel contains inputs corresponding to the front objects, control and indicators, as well as functions, structures, sub-VIs, and wires that can connect data from one object with another [12].
[5] Shiping Song, Lihua Wang, Jiang Li, Jianlong Zhao, Chunhai Fan: Trends in Analytical Chemistry. 27(2008) 108-117

All peaks were identified to a single phase of an orthorhombic olivine-type structure with space group Pnmb.
The first argument suggests that the doping effect, as a relevant influence on conductivity, increases through modification of the electronic structure of LiFePO4 [7].
Chemistry of Materials, 17(20) (2005), 5085-5092

Green Synthesis of AgNPs Coated Mesoporous Silica Nanoparticles Using Tyrosine as Reducing/Stabilising Agent Waranya Ratirotjanakul1,a, Tanapon Sioloetwong1,b, Teeraporn Suteewong2,c and Pramuan Tangboriboonrat1,d 1Department of Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Phyathai, Bangkok 10400, Thailand 2Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok 10520, Thailand awaranya.ratirotjanakul@gmail.com, bdark_calculus@hotmail.com, ct.suteewong@gmail.com, dpramuan.tan@mahidol.ac.th Keywords: Silver nanoparticles, mesoporous silica nanoparticles, tyrosine Abstract.
This was because the prepared conjugate Tyr contained silanol part in its structure which can further grow through the sol-gel process to form MSNs.
Furthermore, these AgNPs were tightly located on the external surface of Tyr-MSNs structure even centrifuged at 9000 rpm for 15 min.

From Fig. 2(a), α and β lamellar structures are noticeable with interlamellar α spacing.
It is fully lamellar with uniform structure.
L Vagnova, Specific features of sintering of HfB2-based refractory ceramic by hybrid spark plasma sintering, Russian Journal of Applied Chemistry. 42 (2015) 386-393 [9] S.