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Carbon fiber, having good mechanical, electrical, magnetic and thermal properties, is a kind of excellent modification component for cement-based composites.
Electrical properties of the composites do not from simple mixing effect, but the jointing effect.
The electrical properties of the composites reflect situ characteristics of component materials.
As a jointing effect, the electrical properties of the composites will be affected by many factors, such as microscopic heterogeneity, fabrication process and some other random factors[5-7].
Conductive mechanism of cement matrix Electrical properties of cement matrix.

Theirs properties condition theirs applications.
The mechanical, electrical and physical properties of deposited thin films are closely linked to the deposition methods and process parameters.
Electrical Properties of Copper Thin Films.
The mechanical properties of Cu thin films, such as hardness H, modulus of elasticity E and H/E ratio, measured by Nanoindentation, are shown in Table 1.
It is important to recall that the crystallite size has a measurable effect on mechanical properties.

These findings highlight the importance of considering multiple factors when designing composite materials that can withstand impact loading and maintain their structural integrity.
Introduction Composite materials are used in aerospace structures due to excellent in-plane properties.
Compression-After-Impact (CAI) strength is one of the mechanical properties of composite materials that are commonly used to assess their post-impact behavior.
Studies related to glass fibers suggest that they have better toughness than carbon fibers, but they have a compromise in other mechanical properties such as stiffness and strength.
Alipour, Studying the effect of different carbon and glass fabric stacking sequence on mechanical properties of epoxy hybrid composite laminates, Compos.

Effects of Electrode Degradation on Properties of Small-Scale Resistance Spot Welded Joints of E110 Alloy Alexey S.
As a result, chemical composition and thermo-physical properties of the electrode tips have been changed.
Dynamic resistance between electrodes was statistically processed in an attempt to predict and control properties of the nuggets.
Parker, Review of resistance spot welding of steel sheets: Part 2 – Factors influencing electrode life, International Materials Reviews 49(2) (2004) 77-108.
Eagar, Measurement of dynamic electrical and mechanical properties of resistance spot welds, Welding Journal 66(12) (1987) 378-385

However, the slide-guide dynamic friction properties were found to vary with external load, speed, and running time, thus affecting motion precision [1].
Such connection joints form weak links between components and greatly affect the overall stiffness and mechanical characteristics of the assembled structure [2].
Besides, the contact stiffness of a sliding surface is the function of interface pressure distribution, which was verified to be an important factor affecting the contact stiffness and the machining performance [5].
Kh represents the Hertz constant and is determined from the contact geometries and material properties of the contact bodies [7,8].
Sliding interface The contact properties of the elastic interface layer such as Turcite-B in the sliding guide system can be modeled by the following exponential relationship [1] (3) where dn is normal deformation (mm), Pn is normal pressure (N/mm2), Cn is coefficient of normal contact flexibility, and m is coefficient of non-linearity of deformations.

The dynamic shear rheometer (DSR) was used to measure viscoelastic properties of asphalt mastic.
Introduction The quality of mastics, mixed with asphalt binder and fillers, influences the overall properties of asphalt mixture.
In other hands, effective elastic material properties can be directly converted to viscoelastic properties using the correspondence principle on the basis of the Laplace transform and Carson transform [6].
A mechanical mixer was used to blend the fillers and asphalt binder at 160°C.
Interaction capability of asphalt and aggregate is a crucial factor to affect the engineering performance of asphalt mixtures [4].

Tavakoli2 1 Faculty of Mechanical Engineering, K.N.
Over the last decades, numerous investigations have been conducted on Nitinol properties.
Introduction NiTi-based shape memory alloys are technologically important materials with outstanding engineering properties including shape memory effect (SME), super elasticity and biocompatibility
These properties are sensitive to factors such as Ni content, aging, thermo-mechanical treatment, and the addition of alloying elements, the presence of impurities and chemical composition homogeneity, which affect the structure [2-4].
The property of high hardness and being a non-magnetic metal is unique to 60-NiTinol [5].

RCC warehousing transportation is always one of the keys factors confined rapid concrete construction.
By analyzing several transport mechanical properties commonly used in the RCC dam construction, this paper cites various possible combination plans of warehousing transportation machines in practical construction, chooses reasonable combination plan playing an important role in the construction schedule, project quality and cost control of RCC dam construction.
Introduction RCC dam is favored by the dam engineering industry with a strong vitality due to its characteristics of rapid construction, short construction period, investment saving and high degree of mechanical.
In a series of construction procedures, RCC warehousing transportation is always one of the keys factors confined rapid concrete construction, and is impacted by dam site of the bank slope terrain, geological conditions, hub layout characteristics, high dam and the construction cost, etc.
Utmost to ensure work continuously without affecting the casting rolling and other processes.

Dimensional Synthesis of a 2UPS-UPR Parallel Machine Tool Liang Zhao1,4,a , Yadong Gong 2,b ,Jianye Guo5,c and Guangqi Cai3,d 1 School of Mechanical Engineering & Automation, Northeastern University, Shenyang Liaoning, China, 110004 2 School of Mechanical Engineering & Automation, Northeastern University, Shenyang Liaoning, China, 110004 3 School of Mechanical Engineering & Automation, Northeastern University, Shenyang Liaoning, China, 110004 4 Liaoning Institute of Science and Technology, Benxi Liaoning, China, 117022 5 School of Mechanical and Electrical Engineering Shenyang Institute of Aeronautical Engineering, Shenyang Liaoning, China, 110136 a zlxh1010@163.com, bgongyd@mail.neu.edu.cn, cg_jianye@yahoo.com.cn, d caigq@ln139.com.cn Keywords: Parallel machine tool, Jacobian matrix, Condition number, Dimensional synthesis Abstract.
In principle dimensional synthesis also needs considering various factors, such as the tools' ability to achieve the position and posture, dexterity, precision, stiffness, etc.
Performance Index of Dimensional Synthesis Since the condition number k of Jacobian matrix J can better reflect the mapping properties of speed, accuracy and stiffness between the operation workspace and the joint workspace, it has been well accepted that the most suitable local performance index is the condition number of the Jacobian matrix, that is, ( ) 1 k J J J − = (4) where， J represents the norm of Jacobian matrix.
Gosselin: Journal of Mechanical Design, Vol. 126 (2004) No.1, pp.83-92
Angeles: Journal of Mechanical Design, Vol. 113 (1991) No.3, pp.220-226.

Keywords: Ceramic; Cutting Tools; Composites; SiAlON; Introduction There is a significant increase on use of silicon nitride (Si3N4) based ceramics as structural materials as a result of their excellent mechanical and chemical properties [1-2].
However, the secondary intergranular phase is detrimental to the high temperature mechanical properties due to softening.
Carbon Fiber Reinforced Carbon (CFRC) composites are widely employed in aerospace and nuclear industries, as a result of their excellent thermo-mechanical properties in non-oxidizing atmospheres, high chemical inertness and relatively low density [6].
Mechanical Properties The average hardness of sintered ceramic cutting tool was 20 GPa, and this value is related to the high volume fraction of extremely hard α-SiAlON particles.
Case study: Factors affecting microstructure and Properties of Silicon nitride; p. 285-304 in Materials Science of Carbides, Nitrides and Borides"; Edited by Y.G.Gogotsi, and R.A.Andreievski, Kluer Academic Publishers, Netherlands, (1999)