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Multi-parameter Linear Regression Analysis About the Experimental Results of Pervious Concrete Strength Xixi He1, a 1Beijing University of Civil Engineering and Architecture, Beijing, 100044, China a68322510@sina.com Keywords: Pervious concrete strength, Porosity, Size, Aggregate size, Linear regression Abstract.
Each group of test concrete water-cement ratio W/C is 0.35, and the cement is drilling license P.O425 produced by New Building Materials Co., Ltd in Sanhe Yanjiao.
Acknowledgment The authors would like to thank the Beijing key Laboratory of Green building and Energy Efficient Technology for the financial support of this project.
Several factors impacting on the performance of porous pervious concrete, Journal of Building Materials, October 2005.
(Journal of Building Material, Vol.8, No.5, Oct., 2005).

Annealing Effects on the Microstructure and Properties of Vanadium and Molybdenum Rich FCC High Entropy Alloy Madan Patnamsetty1*, Ari Saastamoinen1 and Pasi Peura1 1Materials Science and Environmental Engineering, Tampere University, Tampere, Finland *Corresponding Author: madan.patnamsetty@tuni.fi Keywords: High Entropy Alloys, Phase stability, Intermetallic phase, Annealing, Face Centered Cubic (FCC), Microstructure Abstract.
Introduction High entropy alloys (HEAs) are new class of multi-metallic materials, which received significant attention due to their exceptional properties [1], [2].
It was found that atomic size is one of the key factor influencing the selection criteria of IM phases [9].
The raw materials were 99.9% pure element powders.
Metallographic samples were cut from the homogenized HEA ingot and annealed samples, and were molded into the epoxy resin for the material characterization.

Fractal Modeling Research in Permeability of Camellia and Bancoul nut Cakes under Cold-press Xiaocong Ren1,a, Xiao Zheng1,b, *, Ge Chen1,c ,Zhixian Sun1,d 1Institute of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430023, P.
It is an intrinsic property of material [1].
According to equation .2, the actual length of seepage pores, Lt(λ), is another key factor impacting pore fluid flow rate in the Hagen-Poiseuille equation [4].
The materials were purchased from farmers market.
One reason is that vegetable oil materials have the viscous-elastic-plastic feature [10].

Advances in Fusion Welding Technique of Austenitic Stainless Steels Kuang-Hung Tseng a and Hsiang-Lin Sung b Department of Materials Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan atkh@mail.npust.edu.tw, bM9845001@mail.npust.edu.tw Key words: Fusion welding, activated flux, stainless steel, arc column.
TIG practice is often used for metal material welding and produces a clean and smooth weld.
The potential disadvantages of TIG practice lie in the limited thickness of workpiece which can be welded in single-pass operation, the poor tolerance to some material compositions (cast-to-cast variations), and the low manufacturing productivity [1-3].
Conclusions A detailed experiment is conducted to investigate the effect of FeO, FeS, and FeF2 fluxes on weld morphology and ferrite structure when using an autogenous TIG process, without the addition of filler material, to weld stainless steel 316L plates.

This roaming system mainly describes the establishment of the virtual campus model, and server hierarchy design, and Android mobile phone positioning, and the key technology of query realization in the android mobile system.
At the same time, in order to enhance the visual effect, a light is added in the scene, and the material model is set, and it mainly related to glLightfv() and glMaterialfv() function.
Light and material are of ambient light color, mirror reflection, diffuse reflection attributes.
Light colors defined the quantity of the material color representation in the light incidence reflection, material color represents in light reflectance, three Primary Colors reflects quantity, so the observed campus three-dimensional color model depends on the material and Light color.
Journal of Biomedical Engineering Research.2008, 27(2):107~110

This model was completed with the Mie-Grüneisen Equation Of State (EOS), used to calculate the hydrostatic material behaviour in shock-compressed solids [13].
Johnson-Cook and Mie-Grüneisen material parameters for Al and Al alloy were taken from [12,14].
Simulations showed that the initial particle temperature has a key influence on porosity in 3D.
Villafuerte, Modern Cold Spray: Materials, Process, and Applications, first ed., Springer, 2015
Nooririnah et al., Experimental and SPH study of cold spray impact between similar and dissimilar metals, Surface Engineering (2014) [6] Yu, M., Li, WY., Wang, F.F. et al.

Effect of Ferrite/Austenite Phase Transformation on 475˚C Embrittlement in Duplex Stainless Steel Weld Kazuyoshi Saida1,a*, Shotaro Yamashita1,b and Hiroyuki Hirata1,c 1Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan asaida@mapse.eng.osaka-u.ac.jp, bsyamashita@mapse.eng.osaka-u.ac.jp, ch-hirata@ mapse.eng.osaka-u.ac.jp Keywords: Duplex stainless steel, 475˚C embrittlement, Ferrite/austenite phase transformation, Computer simulation, Phase decomposition Abstract.
Materials and Experimental Procedures ATable 1.
Fig.6 shows the TEM microstructure, diffraction pattern and key diagram.
The material constants and numerical values used for calculation are shown in previous report [5].

Effect of Annealing Temperature on the Transformation Temperature and Texture of Ni47Ti44Nb9 Cold-rolled Plate Zhaowei Feng1, a, Xujun Mi2, b, Jiangbo Wang1, c, Zhishan Yuan1, d and Jin Zhou1, e 1Grikin Advanced Materials Co.
,Ltd, Beijing 102200, China 2State Key Laboratory for Fabrication&Processing of Nonferrous Metals,General Research Institute for Nonferrous Metals, Beijing 100088, China afzw@grikin.com, bmxj@grinm.com, cwangjiangbo@grikin.com, dyzs@grikin.com, ezhoujin@grikin.com Keywords: Ni47Ti44Nb9 Shape Memory Alloy, Cold-rolled Plate, Annealing, Transformation Temperature, Texture Abstract.
Hot-rolled plates were used as a starting material to make cold-rolled plates, with cold rolling reduction (CW) of 0, 9, 18, 24 and 35%, respectively.
The strong {111}<112> texture can form in annealing of Ni47Ti44Nb9 secondary cold-rolled plate, so higher shape memory strain are achieved in all directions of plate meeting demand of engineering applications.
References [1] Zuyao Xu, Bohong Jiang, Dazhi Yang, LianchengZhao, Jinfang Guo, Daocheng Pan, Chaoying Xie, Wei Cai, Xunqi Zhang and Yue Huang: Shape Memory Materials (Shang Hai Jiao Tong University Press, Shanghai 2000), p. 85 (in Chinese) [2] J.V.

The vast majority of cycles within a typical helicopter fatigue spectrum exist at a few key frequencies, namely the frequencies and harmonics of the main and tail rotor.
The aim of this program is to determine the effect of spectrum truncation on Crack Growth (CG) and Crack Initiation (CI) in 7075-T7351 aluminum alloy, which is a material that is widely used in Black Hawk airframe.
[3] ‘ASTM E 1049–85 (Reapproved 1997) Standard Practices for Cycle Counting in Fatigue Analysis’, American Society For Testing and Materials, 2004
E. (1999), ‘Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue’, 2nd Edition, Prentice-Hall

Supramolecular Gels Based on Azobenzene Derivatives Hongze Zhang School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P.
Journal of Materials Chemistry B, 2020
ACS Sustainable Chemistry & Engineering, 2019, 7(14): 11999-12007
Journal of Materials Chemistry B, 2020
ACS Applied Materials & Interfaces, 2016, 8(14): 9490-9498