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Disc cutter is the key part in Tunnel Boring Machine (TBM).
The results show the yield strength and rigidity of disc cutter ring is very high; disc cutter ring can avoid resonance and meet the engineering requirement.
Introduction Rock tunnel boring machine is widely used in city subway, hydraulic engineering and traffic construction because of high efficiency, safety, and good for environmental [1].
This indicates that the ring material satisfied the requirements of application in engineering.
Cutter ring meets the engineering requirements.The rigidity of the cutter ring is very high, meeting the engineering requirements too.Cutter ring can avoid resonance based on the modal analysis.

In: Materials Science Forum 1062 (2022), pp. 131–135
In: Materials Science Forum 858 (2016), pp. 531–534
In: Materials Science and Engineering: B 46.1 (1997), pp. 349–356
In: Materials Science Forum 897 (2017), pp. 403–406
In: Materials Science Forum 1089 (June 2023), pp. 71–79.

GMB: A Comprehensive Review of Material Composition, Structural Properties, and Ecological Impacts A.Kandasamy1,a*, B.Ramesh2,b 1Research scholar, Saveetha school of Engineering, Saveetha Institute of Medical And Technical Sciences University, Chennai, India 2Professor, Saveetha school of Engineering, Saveetha Institute of Medical And Technical Sciences University, Chennai, India akandasamya9032.sse@saveetha.com, bramesh.baskar@gmail.com *Corresponding author Keywords: GMB, climate change, fly ash, metakaolin, aluminosilicate materials, greenhouse gas emissions, sustainability, circular economy, strength, durability Abstract.
Key Durability Factors: 3.2.1.
By utilizing industrial by-products and local materials, these blocks address key environmental concerns associated with traditional building materials, including waste reduction and resource efficiency.
Davidovits, “Geoplymers and Geopolymeric Materials,” J.
Bai, “Engineering properties of unfired clay masonry bricks,” Eng.

The Design of earthquake engineering spatial database Based on GIS platform Ren Zea, Meng Ruib China University of Geosciences, Wuhan 430074 arz114083@126.com, bmengrui111@126.com Keywords: Earthquake Engineering, Spatial Database, and Geographic Information System Abstract.
While a set of efficient and safe earthquake engineering spatial database is the most powerful protection for the advanced and sophisticated earthquake engineering theories to apply in the computer software field, the article describes an efficient construction framework approach of earthquake engineering spatial database.
The article will give the detailed description of the key database.
The maximum level is for the provincial level engineering projects, locality (civic) can be said as the subsets of the provincial engineering projects.
City and engineering basic research on disaster reduction (1995) [C].

Research on Theory Method and Key Technology for Electric corona Purifying Tail Gas of Automobile Zhongnian LI1, a , Tao HUANG2,b 1New energy Resuorce Engineering Department, ZiLang Vocational Technical College, Nantong, P.
Using ultrahigh pressure of narrow vein reverse corona cracking method to generate high concentrations ( electron density of 1011m-3 to1012 m-3) at low temperature ( < 100 degrees C ) plasma energy ( energy 16 to 18 electron volts ), purifying harmful ingredient of automobile tail gas on the automobile exhaust in the modern engineering, electrical, magnetic, optical, chemistry and other disciplines of the combination of research topic, also is the purification of automobile exhaust gas of a new idea, new method, new device, not only has very important academic value, but also has very important practical significance in engineering.
Key facilities.The Electric corona purification critical infrastructure is the " ultra high voltage narrow pulse generator ".The super high voltage narrow pulse generator is used to generate the 150KV to 200KV voltage narrow pulse sequence, the half of a pulse amplitude pulse width is 300NS, frontand back edges are 120NS, frequency 1kHz.
This is the ultra high voltage narrow pulse generator in the key of.
Advanced Materials Research, June(2012), p.96-99.

Short Review on Conductive Polymer Composites as Functional Materials Venkatachalapathi Nynaru1,a, Elammaran Jayamani2,b, Srinivasulu M3,c, Eugene Chin Wei Han2,d and Muhammad Khusairy Bin Bakri2,e 1Full Professor, Dept. of Mechanical Engineering, AITS, Rajampet, Kadapa District, Andhra Pradesh, India 2Faculty of Engineering, Computing and Science, Swinburne University of Technology Sarawak Campus, Jalan Simpang Tiga, 93350, Kuching, Sarawak, Malaysia 3Full Professor, Dept. of Mechanical Engineering, NBKRIST, Vidyanagar, Nellore District, Andhra Pradesh, India anvcprincipal@gmail.com, bejayamani@swinburne.edu.my, cmslu544@gmail.com d43183145@students.swinburne.edu.my, embakri@swinburne.edu.my Keywords: Natural Fibers, Conductive Polymers, Functional Materials, Thermal Conductivity, Composites Abstract.
The outcome of this short review helps identify the important keys that influence the conductive polymer composites as functional materials.
Thermal conductivity is the degree of heat transfer to conduct heat in between a material.
Polymers One of the fundamental materials of a conductive polymer composites are the polymer matrix.
For the case of composite materials, more interfaces present between the polymer matrix and the fillers which leads to more scattering.

Innovative Sensors: New Standards of Accuracy and Efficiency for Optical Deformation Sensor MAZANASHVILI Marekh Georgian Technical University, Faculty of Informatics and Control Systems, Department of Engineering Physics, 77 Merab Kostava Avenue, Tbilisi, 0160, Georgia marekhi1978@gmail.com Keywords: deformation sensor, photoresistor, electrical engineering, civil engineering.
Sensors are widely used across various fields including scientific research, materials testing, quality control, medicine, engineering, and automatic control systems—anywhere information acquisition, processing, and feedback control are essential.
These sensors are also instrumental in studying mechanical stress—i.e., internal forces that arise in materials subjected to external loads.
Commonly, optical strain sensors have applications in several areas, including infrastructure monitoring, the aerospace industry, automotive engineering, biomechanics, robotics, and geotechnical engineering.
Lu, Review on piezoelectric actuators: Materials, classifications, applications, and recent trends, Front.

Engineering Properties of Cellular Ti-6Al-4V Structures Fabricated by Electron Beam Melting Geoff Smith1,a, Ian Brown1,2,b*, Alexander Kirchner3,c, Martin Ryan1,d, Peter McGavin1,e, Matt Sharp1,f 1Callaghan Innovation, 69 Gracefield Road, Lower Hutt 5040, New Zealand 2The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand 3Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM), Winterbergstrasse 28, 01277 Dresden, Germany ageoff.smith@callaghaninnovation.govt.nz, bian.brown@callaghaninnovation.govt.nz, calexander.kirchner@ifam-dd.fraunhofer.de, dmartin.ryan@callaghaninnovation.govt.nz, epeter.mcgavin@callaghaninnovation.govt.nz, fmatt.sharp@callaghaninnovation.govt.nz Keywords: additive manufacturing, electron beam melting, titanium, cellular materials, porous materials, biomedical, compression testing Abstract.
Key engineering properties such as stiffness and yield strength may be adjusted to suit the intended application [1].
Stress-strain curves were constructed up to 5% engineering strain, by incrementing the applied load at the top surface and recording the resulting strain.
Mechanical properties of these materials were measured under compression, obtaining Young’s moduli of 3.5 – 15.6 GPa.
Finite element modelling of these materials has met with limited success.

Journal of engineering research 6.2 (2018): 191-208
Engineering 11 (83) (2007) [11] Zhang, Zhenzhong, et al.
Journal of Materials Processing Technology 108 (1) (2000) 114-124
Series: Materials Science and Engineering 297 (2018) 012048
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 231.4 (2017): 621-632

Because reverse engineering can provide the main shape features of the original product, and the geometric shape of the product can be improved and reshaped rapidly, so the reverse engineering can meet the demands of the series and the variety [1].
Impeller Reverse Engineering The submersible mixer plays an important role in the process of the sewage treatment.
Impeller three-dimensional point data surface is a key technology of reverse engineering, which will affect the speed and accuracy of the post treatment directly.
While increasing quality, metal materials can not be achieved, and only abrasion-resistant non-metallic materials with other research identified by the use of a abrasion-resistant polyurethane material as the impeller.
Through the manufacture of precision molds, selection of the abrasion-resistant materials, manufacturing improvements, we got a new impeller for the field test.