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Research Progress of Al2O3 Based and Si3N4 Based Ceramic Tool Materials Haixia Huang, Yihua Feng*, Fumeng Li, Hao Sun School of Mechanical & Automotive Engineering, Qilu University of Technology, Jinan 250353, China Keywords: tool material; ceramic; mechanical property Abstract.
Introduction In the machinery industry, material, structure and geometry were three elements of the cutting tool, which played a key role in the tool material.
Matrrials Science and Engineering A 459(2007) 86-93
Key Eng Mater 1999;159–160:405
Materials 35 (2012)17–26

Fabrication and Characterization of Nano-Hydroxyapatite / Poly (D, L-lactide) Composite Porous Scaffolds for Human Cartilage Tissue Engineering L.Cheng1 , S.M.
These results suggest that the PDLLA/nano-HA porous scaffolds are promising candidates for cartilage tissue engineering application.
Introduction Hydroxyapaite (HA) has been used as tissue engineering material for cell culture and tissue repair due to its excellent biocompatibility and osteoconductivity [1].
And there is much increase in protein adsorption and osteoblast adhesion on the nano-ceramic materials compared to micro-ceramic materials.
Materials and Methods Materials.

Mohamed Fathimal2,d 1Student, Computer science and Engineering, SRM Institute of Science and Technology, Vadapalani, India 2Assistant, Professor, Computer science and Engineering, SRM Institute of Science and Technology, Vadapalani, India asarangaraja97@gmail.com, brajatechrj7@gmail.com, cvignesh3967@gmail.com, dfathimap@srmist.edu.in Keywords.
For image encryption, use the Symmetric key and a private/public key pair.
We used materials from 2014-to 2021 to keep up with the latest trends.
Optics and Lasers in Engineering, 128, 105995. (2020a)
Optics and Lasers in Engineering, 125, 105851. (2020b)

Key Technologies Research for Impellers Machining Based on NX Xianyi Li 1,2,a, Jianzhong Fu 1,b and Jiqiang Li2,c 1Zhejiang University, Zhejiang Province Key Lab of Advanced Manufacturing Technology, Department of Mechanical Engineering Hangzhou, Zhejiang Province 310027, P.R.
The rough machining of impeller’s flow channel will remove the massive materials, Increasing the machining efficiency during the rough and semi-finish milling process is the main consideration, The feed and depth of cut should be as big as possible in order to remove redundance material in the short time.
Because remainder is big in the process of rough machining, Two different directions may selected to carry on, when direction is selected, the working range should be big as far as possible, eliminates materials as far as possible.
Fred: Society of Manufacturing Engineers, Vol. 2(1987)pp.2-12
[5] S.L Chen,W.T Wang: Journal of Materials Processing Technology,Vol.115 (2001),pp.284-293.

Digital protection based on reverse engineering Reverse engineering is refers to that the product was obtained from the actual sample and get the relevant technology of the new product manufacturing.
In order to achieve the effective mass of 3Ddigital workflow, complex irregular shape using reverse engineering scheme, as shown in figure 2.
Reverse engineering can be divided into data acquisition, data processing, surface reconstruction and other key technology.
Data acquisition is the first step of reverse engineering CAD modeling.
Zhou: Advanced Materials Research, Vol.403 (2012), p. 377

It's the cause for many failure accidents in soil nailing support engineering.
But it was often neglected in engineering design and construction.
Engineering application of this technique has been for more than 10 years[1].
It is engineering favor in foundation pit supporting and slope reinforcement.
Soil nailing steel materials were II grade rebar.

Study on Biomass Energy Materials---Briquetting Fuel and Its Applications in Power Generation Yingli Li 1,2,a, Zhiwei Wang 3,4,b 1 College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, China 2 Zhengzhou Technical College, Zhengzhou, China 3 Energy Research Institute Co.
,Ltd, Henan Academy of Sciences, Zhengzhou, China 4 Henan Key Lab of Biomass Energy, Zhengzhou, China ahnndbslyl@163.com, b bioenergy@163.com Keywords: Biomass; Energy materials; Briquetting fuel technology; Power generation technology Abstract.
Finally, there was an outlook for the development prospect of such energy materials and its power generation technology in China.
By taking briquetting fuel technology, the dispersed raw materials (mainly in agricultural and forestry residues) with uncertain shapes can be compressed into briquetting fuels with a certain geometry and lager density through processes of drying, chopping and briquetting, etc.
According to different heating positions for raw material, heating action to raw material can be divided into two kinds, i.e. heating at briquetting position only and heating respectively before putting raw materials into compressing mechanism and at briquetting position. (3) For common briquetting, namely forming under normal temperature and moisture condition, after corruption to a certain extent, fiber comes to be soft, wet, cracking and partly degraded, at which time it is easy to be briquetted; then extrude water out from the partly degraded agricultural and forestry residues with a simple die, thus the briquetting fuel can be got.

Citation & Key Engineering Materials Vols
Jiao Key Lab for Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University, P.R.China Keywords: Numerical controlled water-cutter, Pulsed abrasive water jet, Natural rock materials machining Abstract.
Key Engineering Materials Vols. 275 Fig.1 Schematic of the hardware for the CNC Fig.2 Photo of CNC cabinet controlled water-cutter 1. water tank, 2. filter, 3. high pressure ram pump, 4. overflow valve, 5. pressure meter, 6. throttle, 7. unilateral valve, 8. cut-off valve, 9. abrasive barrel, 10,11. step motor in X and Y axils, 12. pulsed nozzle, 13.
Engineering Materials Vols. 279 As illustrated in Figs.9a and 9b, there exists an optimum stand-off distance ( 10/ 1 =dS , as shown in Fig.9) where the cutting depth and erosion volume with the CNC controlled water-cutter is as 1.72 times as that by pre-mixed AWJ.
In summary, the CNC controlled water-cutter could be widely used for machining various natural rock materials.

During ISMQC 2013 that were selected by Programme Committee to be published in the Special Issue of “Key Engineering Materials” and one additional paper whose subject fits perfectly the scope of the symposium.

Preparation of braided silk as a tubular tissue engineering scaffold Huijing ZHAO1, a, Mingzhong LI1, b 1.National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren’ai Road, Industrial Park, Suzhou 215123, China azhhj@suda.edu.cn, bCorresponding author, mzli@suda.edu.cn Keywords: silk; braiding; small diameter; tissue engineering scaffold; tube.
Conclusively, braided silk tube could be a potential blood vessel tissue engineering scaffold.
Materials and Methods Materials.
Acknowledgements This work was supported by the Key Basic Research Program of China (973 program, 2005CB623902), National Natural Science Foundation of China (30970714), College Natural Science Research Project of Jiangsu Province (07KJA43010) and the Program of Science and Technology of Jiangsu Province (BA2007055).