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How to obtain the geometry of an object has been one of the main topics in reverse engineering (RE).
CGI uses CNC milling machines to remove the materials and CCD cameras to capture images.
No results are shown for objects made of other materials.
However, for materials of high hardness, regular milling cutters may not be adequate.
Ku: Biomedical Engineering - Applications, Basis and Communications.

It fills the blank in the field of China’s highway construction management philosophy and monitoring means, which is a great significance of the large, complex highway engineering practice.
However, it is still a blank for the internal quality control for the project or key part of the overall process, such as raw material transportation, mixture mixing production, construction mixture ratio, material transfer vehicle passing in and out mixing stations for identification and weighing, road paving, RCC and other data collection, the mathematical statistics and analysis in order to achieve modernization information technology and engineering construction control technology; especially the concept of domestic construction specifications and project management.
The data of the pavement engineering management are complex.
Through the integration of the video monitoring technology used in mixing stations or key project construction sites and the automated real-time production data monitoring technology, and full use of video analysis technology, license plate recognition technology, GPS vehicle positioning technology, GPRS wireless transmission technology, SPC (Statistical Process Control, referred to as SPC) and other important means of secondary data mining and statistical analysis, it forms a complete dynamic system of monitoring engineering quality and safety, makes a breakthrough in the traditional engineering quality and safety supervision system, improves the efficiency of construction management and effectively controls the safety and quality.
The system collects and uploads the real-time data of the raw materials for the production in the asphalt mixing stations, production indicators, the temperature indicators of the road construction by the technology of GPRS wireless transmission.

Investigation of Physochimechal and Biological Properties of Composite Sodium Alginate for Tissue Engineering Ishraq Abd Ulrazzaq Kadhim1,a 1Department of Materials of Engineering/University of Technology, Iraq aishraq.a.kadhim@uotechnology.edu.iq Keyword: Sodium alginate, NanoGraphene oxide, Tissue engineering Abstract.
Experimental 1-Materials sodium alginate (Xianm Shaanxi, China,).
Li, Preparation and Characterization of Chitosan-Agarose Composite Films, Materials,9(2016)816. [13]Sh.
Allahyari , Characterization and Evaluation of Graphene Oxide Incorporated into Nanofibrous Scaffold for Bone Tissue Engineering, Journal of Tissues and Materials, 1(2019)1-13
Kadhim, Biocompatibility of Alginate-Graphene Oxide Film for Tissue Engineering Applications, Key Engineering Materials,900(2021).

Results demonstrate that parameters of materials can be calibrated efficiently from the DSM and that key aspects for this calibration are noise, sensitivity (structural and sensor), and the finite element model representation.
In this last case, one of the materials was steel and the properties for the other were determined from an inverse problem experiment.
Tsikos: ASCE Journal of Engineering Mechanics (2000), p 711-724
Lozano: Smart Materials and Structures (2003), p 776-784
Roesset: Computer Aided Civil and Infrastructure Engineering (2007), p 265-281

Feature Extraction Method Based on Key Words.
Feature Weighting Scheme Based on Key Words.
IEEE Trans. on Knowledge and Data Engineering,2004,16(10):1305-1308 [5] Liu Li, He Zhong-shi, Term selection and weighting approach based on key words in text categorization.
Computer Engineering and Design.2006.3, 934-936 [6] LIU Hai-feng, YAO Ze-qing, WANG Ze-yan, ZHANG Xue-ren.
Computer engineering and application, 2006.11

Key Technologies and Trends of Passive Buildings Lizhong Shi1, a, Yemin Zhang2, b Institute Architectural Engineering ; Liaoning Province Environmental and Geotechnical Engineering Laboratory, Shenyang University, Shenyang 110044 aslz-0318@163.com, bm1964@163.com Key words: passive house, interdisciplinary field, energy conservation and low carbon Abstract.
The thickness of insulation materials in Germany has gradually increased from only 4 cm to no less than 10 cm regardless of the type of material.
With a thermal conductivity between 0.007 and 0.009 W/(m∙K), vacuum insulated panels provide insulation performance ten times better than that of conventional insulation materials.
There are commonly two types of materials for roof insulation.
The floor insulation thickness is at least 25 cm. 3) Airtightness To ensure the completeness of thermal insulation, key locations including window openings, air conditioning bracket, service penetrations, roof joints and building corners must employ suitable sealing materials and thermal insulation. 4) Thermal bridge treatment To make the thermal insulation systems work well, not only should insulation materials and thickness be carefully selected, but also design and construction of key joints to avoid thermal bridges.

Assembly process application of Lean Quality Management Moli Sun1,a Xiaochun Zhang2,b 1Department of Mechanical Engineering, Xi’an Aero technical College Xi’an China 710077 2Xi’an University of Technology Xi’an China 710048 amoly.sun@163.com b7787387@qq.com Key words: Assembly process; Quality Management; Resume; Quality defects; Key parts Abstract: The product assembly as the final manufacturing process is one of the most important part, its quality has a major impact on product quality.
Research on quality management, analysis all aspects of quality control around the assembly process, store electronic resume of assembly process, analysis quality defect, forecast and optimize the matching of key parts, which significantly improve the quality of the assembly process of the enterprise performance and business performance.
Optimization of key indicators of quality In the assembly manufacturing processes, the quality problem of the error between the parts can not reach the design requirements, the analysis found that the root of the problem is the assembly manufacturing sector (such as machining, etc.), arising in the course of various quality problems (such as ultra-poor), but taking into account economic factors and processing level, the manufacturing sector need to be resolved in the assembly.
The key steps in implementation include: ① The size of critical components and their identification, measurement, recording ②With the size of the model to calculate the key, and then construct a model of critical parts. ③ According to the model with the critical parts, with the experimental data of key parts, multi-objective optimization using genetic algorithm based on the priorities with algorithms to calculate the required materials, when the secondary units were the key components with the list [4].
Modern Manufacturing Engineering. 2007 (4) :54-57

On the Mechanism and the Rate of Sub-ground Erosion in the Loess Material Xi An LI 1, a, Qiang XU 2,b, Hong Zhou LIN 1,c Wan Jun YE 3,d 1 College of Geology Engineering and Geomatics, Chang’an University, Shanxi Xi’an: 710054, China 2 The National Laboratory of Geo-hazards Prevention and Geo-environment Protection, Chengdu: 610059, China 3 Xi’an University of Science and Technology, Shanxi xi’an 710054, China adclixa@chd.edu.cn, bxq@cdut.edu cn, clinhz03@gmail.com dyewanjun2004@126.com Keywords: Mechanism; Sub-ground erosion; Critical condition; rate of tunnel-erosion.
Sub-ground erosion often resulted in severe problems in various engineering constructions, most of which is due to the sub-erosion in loess.
The key factors considered in the test include soil density as well as the initial water content.
In many cases, the lower side erosion acts as a key reason for the gravity erosion.
On the origin of hidden holes in loess and its hazardous effects on the highway engineering [Ph.

The key technology of the solar electric automobiles The application technology of solar energy electric automobile relates to photoelectric, electronic machinery, electronic, control, automotive engineering, mechanical, chemical and other aspects.
On the one hand, to reduce the quality of the body as the dominant ideology, use most lightweight materials to manufacture the frame, can use aviation materials.
References [1] Dingyue Chen, Rucheng Wang, Zhongcheng Xu, Modern manufacturing engineering (China) (2008) 134-137
[3] Jia-Sheng Hu, Dejun Yin, Yoichi Hori, Control Engineering Practice 196 (2011) 204-213
Karam, Solar Energy Materials and Solar Cells 94 (2010) 1314-1318.

Materials and Methods Fly Ash.
Curing time and engineering properties of the fly ash-based geopolymer materials compared to lightweight concrete brick in ASTM C90.
Nguyen, Evaluation on Roles of Activated Silicon and Aluminum Oxides for Formation of Geopolymer from Red Mud and Silica Fume, Key Engineering Materials. 777 (2018) 513-517
Nguyen, Effect of Alkaline Activators to Engineering Properties of Geopolymer-Based Materials Synthesized from Red Mud, Key Engineering Materials. 777 (2018) 508-512
Do, Leaching Behavior and Immobilization of Heavy Metals in Geopolymer Synthesized from Red Mud and Fly Ash, Key Engineering Materials. 777 (2018) 518-522