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The Study of the Railway Tunnel on the Area of Wall Rock Pre-injection Huifeng SU1,a, Weining LIU2,b 1Key Laboratory of Mine Disaster Prevention and Control,Shandong University of Science and Technology, Qingdao, Shandong ,266510, China 2School of Civil Engineering Beijing Jiaotong University, Beijing,100044, China ashf7521@163.com, bwnliu@bjtu.edu.cn Key words: Chiefly block, Control drainage, Wall rock lnjection, External water load Abstract.
The thickness of injection loop too thin, plastic zone distribution changed obviously with external water load, it is harm for wall rock stability. the thickness of injection loop too deep, plastic zone distribution changed unobvious with external water load, this will waste labors and material.
It is obvious that over-thick loop would surely waste resource involve manpower and material.
Reference [1] 1st Institute of Railway Survey and Design, Southwest Jiaotong University, Construction Techniques Department of the No.18 Engineering Bureau, Study on the forecast and prediction for karst water and water gush of tunnel terrene [R].
Chengdu: Southwest Jiaotong University Engineering, 2002. 49-68 (In Chinese)

Mechanics of Locomotion Energetics in Chinese Mitten Crab Eriocheir sinensis Milne-Edwards Xiaodong Zhang, Jianqiao Li, Han Huang, Meng Zou Key Laboratory of Bionic Engineering (Ministry of Education, China), Jilin University, Changchun, P.R China Corresponding author: Jianqiao Li E-mail: jqli@jlu.edu.cn Full telephone: +86-0431-8509-5760-415 Keywords-biomechanics, Chinese mitten crab, rough terrain, gait, mechanical energy, percentage energy recovery Abstract The study on the locomotion mechanism in laboratory has defined performance limits for animals presently.
Materials and methods 2.1 Animals All tested Chinese mitten crabs Eriocheir sinensis Milne-Edwards (N=18) came from Yangcheng Lake in Suzhou, China.
Investigation on Walking and Pacing Stability of German Shepherd Dog for Different Locomotion Speeds, Journal of Bionic Engineering, 2011, 8, 18-24
Biosystems engineering, 2005, 91,369-377

Design and Manufacturing of Knee Implants for Osteoarthritis Patients Patrick Dometta, Mohammadreza Arjmandib, Maziar Ramezanic* Department of Mechanical Engineering, School of Engineering, Computer & Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand aPatrickDomett@outlook.com, bmohammadreza.arjmandi@aut.ac.nz, cmaziar.ramezani@aut.ac.nz Keywords: Artificial cartilage, Implant design, Knee unloading, Osteoarthritis.
Overall, the HC Type-B demonstrated the best mechanical and tribological performance among other studied materials and is therefore selected for further research.
American Society of Mechanical Engineers (2010)
Key Engineering Materials. 775 (2018) 109-114
Journal of the Mechanical Behaviour of Biomedical Materials. 95 (2019) 196-204.

Mortar and brick are common materials that used in building up a structure since several years ago.
Now, bricks masonry still widely used material along with other material.
For proportion specification, mortar is defined by volume ratio of the materials which are used to constitute mortar.
It had been studied of mortar joints by using two mortars consisting of two different quality materials along the bond length.
Whereas lightweight brick which has low compressive strength due to low-density materials that could contain up to 50 per cent of restricted air, subsequently, this may have an effect on the results.

Size Effects in Electroformed Nanomaterials Uwe Erb University of Toronto Dept. of Materials Science and Engineering Toronto, Ontario, M5S 3E4, Canada erb@ecf.utoronto.ca Key Words: Electrodeposition; fully dense nanomaterials; grain size-dependent properties; grain size-independent properties; intercrystalline volume fractions; grain boundaries; triple junctions Abstract This paper reviews size effects in nanocrystalline metals and alloys made by electroforming, a particular form of electrodeposition.
However, this number can be substantially increased to over 80% in what is referred to as grain boundary engineering.
The ultimate goal of grain boundary engineering is to increase the overall properties of polycrystalline materials by creating high frequencies of special grain boundaries with better properties.
It should be noted, however, that these materials were two phase materials consisting of fcc Ni and a bct Ni3P phase.
Palumbo, in Nanostructured Materials, C.C.

Barbosa de Lima2,e 1Federal Institute of Education Science and Technology of Paraiba (IFPB), Zip code 58805-345, Sousa, Paraíba, Brazil. 2Department of Mechanical Engineering, Federal University of Campina Grande (UFCG), Zip code 58429-900, Campina Grande, Paraíba, Brazil. 3Department of Petroleum Engineering, Federal University of Campina Grande (UFCG), Zip code 58429-900, Campina Grande, Paraíba, Brazil. 4Department of Chemical Engineering, Federal University of Campina Grande (UFCG), Zip code 58429-900, Campina Grande, Paraíba, Brazil.
The South African’s showed higher emission of nitrogen oxides, sulfur oxides and particulate materials, because of two reasons: a) High emission of coal-fired power plants.
Master´s Dissertation in Energy Engineering, Federal University of Itajubá, Itajubá, Brazil, 2003(In Portuguese)
Master´s Dissertation in Science: Nuclear technological area of the materials, University of São Paulo, São Paulo, Brazil, 2007 (In Portuguese)
Plate, Engineering Meteorology, Elsevier, 1982, Amsterdam, pp. 481-525

An example of such an aesthetic and cost-effective design is the Fußgängerbrücke Töss footbridge – Fig. 1, designed by Swiss engineer Robert Maillart.
Its construction back in 1933 shows that saving of material can be achieved not only from fine mechanical properties of the new materials, but also from the appropriately chosen geometry and static arrangement.
Both mentioned structural systems consist of two interacting structures (arch, stress ribbon), which results in the complexity and the cost of the design despite the slender cross-sections and efficient use of materials.
The efficient usage of materials leads to more slender cross-sections, it is necessary to check sufficient stability.
The key part of the research is verifying the stabilizing effect of the external prestressing cable connected to the bridge deck.

Ziebeck6, k 1Faculty of Engineering, Tohoku Gakuin University, Tagajo 985-8537, Japan. 2Department of Basic Sciences, Faculty of Science and Engineering, Ishinomaki Senshu University, Ishinomaki 986-8580, Japan 3Faculty of Science and Technology, Ryukoku University, Otsu 520-2194, Japan 4Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan 5Department of Materials Science, Tohoku University, Sendai 980-8579, Japan 6Department of Physics, Cavendish Laboratory, University of Cambridge, CB3, 0HE, UK as0994301@tjcc.tohoku-gakuin.ac.jp, bkanomata@tjcc.tohoku-gakuin.ac.jp, cb0641153@tohoku-gakuin.ac.jp, dkataokam@kxe.biglobe.ne.jp, enishihara@rins.ryukoku.ac.jp, frieume@imr.tohoku.ac.jp, gobara@imr.tohoku.ac.jp, hshishido@imr.tohoku.ac.jp, inagasako@material.tohoku.ac.jp, jkainuma@material.tohoku.ac.jp, kkraz2@cam.ac.uk Key words: Heusler alloy, phase transition, phase diagram.
FSMAs are potential materials for use as magneto-mechanical actuators because they show a large magnetic-field-induced strain by the rearrangement of twin variants in the martensite phase [2].
These values are of the same order as in the so-called giant magnetocaloric materials, such as La(Fe,Si)13 [17, 18]
In this paper, the structural and magnetic properties of Ni2MnGa1−xCux (0 ≤ x ≤ 0.4) are examined experimentally and theoretically to gain deeper insight into the phase transitions of these materials.
Ziebeck, in: Magnetism and Structure in Functional Materials, edited by A.

The prepared materials were applied for the photocatalytic reduction of CO2, and the produced amount of CH3OH was 618.7 mmol·gcat–1.
Experimental Materials and chemicals.
The morphology of the materials was characterized by transmission electron microscopy (TEM, Tecnai F20, FEI Corporation, United States).
Tonda, N-doped C dot/CoAl-layered double hydroxide/g-C3N4 hybrid composites for efficient and selective solar-driven conversion of CO2 into CH4, Composites Part B: Engineering. 176 (2019) 107212
MacFarlane, Carbon quantum dots/Cu2O heterostructures for solar-light-driven conversion of CO2 to methanol, Advanced Energy Materials. 5 (2015) 1401077

Ltd, Hangzhou, China apanxw@zstu.edu.cn, bfulijun@qq.com, cwym@zjcps.com Key words: product family, product lifecycle management, information integration model.
Related objects include all engineering objects and management objects, such as products, assemblies and parts, documentations, projects, tasks and equipments, etc, which have corresponding property sets.
Such logic relations is embodied in BOM (Bill of Material), product classification tree, project classification tree in the product lifecycle phases.