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The micro-PECM (Pulse Electrochemical Machining) combining synchronous ultrasonic vibration is proposed as a new technology for to solve the difficulty machining problems of conductive hard and tough materials.
Generally, the mid carbon steel and the spring steel are selected as electrode materials of the micro-machining.
Beijing. 2005 [4].B.Bhattacharyya, J.Munda，Experimental Investigation into Electrochemical Micromachining (EMM) Process[J]，Journal of Materials Processing Technology，2003，140：287~291
[5].Zhao Wansheng，Wang Zhenlong．Ultrasonic and electric discharge machining to deep small hole on titanialloy[J]．Journal of Materials Processing Technology，2002，120：101~106
Selected problems of micro electrochemical machining[J], Journal of Materials Processing Technology, 2004, 149(1-3): 426-431

The high-pressure gas is found as the best alternative to TNT material, for reducing the deflection produced.
Urdea, Stress and vibration analysis of a drone, IOP Conference Series: Materials Science and Engineering. 1009 (2021) 012059
Song, Vibration reduction and firing accuracy improvement by natural frequency optimization of a machine gun system, Journal of Mechanical Science and Technology. 29 (2015) 3635-3643
Applied Mechanics and Materials. 574 (2014) 32–35
Journal of Mechanical Science and Technology. 31 (2017) 2663-2670

Box 77, D/A Pejabat Pos Besar, 01000 Kangar, Perlis, Malaysia 2Faculty of Engineering Technology, Uniciti Alam Campus, Universiti Malaysia Perlis (UniMAP),02100, Sungai Chuchuh, Padang Besar, Perlis, Malaysia 3Gheorghe Asachi Technical University of lasi, Faculty of Materials Science and Engineering, Blvd.
Introduction Currently, geopolymer based on analogous and aluminosilicates materials is used to replace the Ordinary Portland Cement (OPC) as binders for concretes in building materials.
In concrete materials, the corrosion process will be slow if its high electrical resistivity is compared to concrete which has low resistivity.
[3] Ha-Won Song and Velu Saraswathy (2007), “Corrosion Monitoring of Reinforced Concrete Structures – A Review”, International Journal of Electrochemical Science, vol 2, pp 1-28
ACI Materials Journal 101: 467-472

Looking for cheaper and more efficient reactive media is one effective way to enhance efficiency and reduce cost of PRB.Therefore,recent studies have focused on the search of inexpensive and efficient reactive media especially developed from various natural mineral materials.The application of emerging reactive media,such as peat[4]and lignite[5],has been studied in repair projects.
[2] Gabriele Hornig, Kathy Northcott, Ian Snape: Assessment of sorbent materials for treatment of hydrocarbon contaminated groundwater in cold regions.
Cold Regions Science and Technology. 53 (2008),83-91
Journal of Hazardous Materials. 68(1999),97-108
Journal of Jilin University(Earth Science Edition). 40.2(2010),399-404.

The technique using the investigated material affected by ion flux can also be applied to visualize the surface voltage distribution of textile materials.
Surface voltage is a parameter introduced to describe the electrical properties of textile materials.
The results of this study are useful for interpreting experimental data and characterizing textile materials, and can be used to evaluate the withstand voltage and half-life as indicators for various materials.
In: Nanotube Superfiber Materials, Elsevier 2019 pp. 263–311
[7] Stankutė, R., Grinevičiūtė, D., Gutauskas, M., Žebrauskas, S., Varnaitė, S, Evaluation of Electrostatic Properties of Fiber-forming, Polymers Materials Science 16 (1) (2010) 72–75

Low cost raw materials, e.g., ceramic oxides, can be used.
Nasiri- Tabrizi, Mechanochemical synthesis of Al2O3-TiB2 nanocomposite powder from Al-TiO2-H3BO3 mixture, International Journal of Refractory Metals and Hard Materials, 2011, Vol. 29, pp. 244-249
Ataie, Preparation of alumina/titanium diboride nano-composite powder by milling assisted sol–gel method, Journal of Refractory Metals and Hard Materials, 2012, Vol 31, pp. 121–124
Speyer, Aluminothermic reaction path in the synthesis of a TiB2-Al2O3 composite, Journal of Materials Research, 1997, Vol. 12, pp. 1681-1684
Meyers, Combustion synthesis/densification of an Al2O3-TiB2 composite, Materials Science and Engineering A, 2001, Vol. 311, pp. 83-99

Materials and Methodology Materials.
Journal of Materials Science, 42(17), pp.7544-7553
Journal of Materials Chemistry, 20(23), pp.4937-4948
Materials & Design, 94, pp.554-564
Journal of Materials Chemistry, 21(35), pp.13290-13298

It shows that the increased load can be transferred to pile bottom precisely because of the continue compression of pile materials.
It shows that during the loading process before 4000KN, elastic deformation occurred mainly for pile body materials, and after 4000kn, plastic deformation occurred.
Journal of geotechnical engineering,  1997, 19(4): 88 ～ 93
Journal of Zhu-Zhou Institute of Technology, 2006, 20 (4): 86 ～ 89 [4] Lei Jin-Song.
Master degree theses of kun-Ming university of science and technology, 2002

The one of the mostly used polymeric materials is high density polyethylene (HDPE) which is a semicrystalline.
Experimental 2.1 Materials High-density polyethylene (HDPE:EL-Lene H5818J pallets), supplied by Polyethylene Malaysia Sdn.
Each of formulations was dried in the oven for about 30 minutes at 90°C to remove the moisture content in the materials.
Polymer-layered silicate nanocomposites; preparation, properties and uses of a new class of materials.Materials Science and Engineering: R, 28,1-68
Biodegradable polymers and their layered silicate nanocomposites: in greening the 21st century materials world.Progress in Material Science, 50, 962e1079 [11] Pandey, J.

SiC film demonstrates low friction and superior scratch and wear resistance when compared to the other materials currently used in MEMS devices [16].
The various surface roughness value of different surface materials are shown in Fig. 3.
For all of the surface materials, larger normal forces lead to smaller friction force.
Fig. 6 show the contact angle changes with various surface materials, surface roughness values, and roughness directions.
Zhao: Applied Surface Science.