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The conductance properties of multi-walled carbon nanotube mats and their polystyrene composite were examined to investigate the mechanism of conduction and the specific role of the supporting polymer.
This mechanism is affected by the polymeric portion of the composite, since the temperature dependence of the composite conductance is decreased.
Consequently, numerous studies were aimed to reveal its mechanical, electrical and other properties.
T denotes temperature, b is constant depending on the geometrical factors from the effective fraction of the length for the barrier portion and c is constants depending on the barrier to conduction parameters [6-9].
Summary Conduction properties of a multi-walled carbon nanotube mat and its polystyrene composite were investigated using a four-point measurement system over a broad range of temperatures.

This is because of its lowest cost, easy availability, adequate thermal and mechanical properties, ease of fabrication etc.
When corrosion resistance becomes the deciding factor, for overall resistance to general uniform corrosion, the common austenitic stainless steel Type 304(L) SS, 18/8(L) SS, is used.
Both the above grades are susceptible to Intergranular Corrosion (IGC) in Heat Affected Zones (HAZ).
Figure 2: Left: Affected blot & nut.
This mechanical strength translates to high resistance to erosion.

Nowadays, basal properties and durability of alkali-activated cement concrete(AAC) have been systematically studied[1-11].
Workability, compressive and flexural strength at 7d, 28d were tested according to GB/T 50080-2002《Standard Test Method of Performance on Ordinary Fresh Concrete》and GB/T50081-2002《《Standard Test Method of Mechanical Properties on Ordinary Concrete》.
This formula can supply references to predicte shrinkage of ASC, however, it’s based on the condition of identical temperature and humidity, if we apply it to actual construction, plenty of factors affecting shrinkage of ASC, like size of specimen, relative temperature and humidity, curing strength grade, load, and so on, and it’s need to modify the formula appropriatly.
Manufacturing Process and Properties of Alkali-slag Mineral Polymer Concrete [J].
Properties of Alakli-activated Compound Waste Concrete on Freeze-thaw and Abrasion Operation Together[J].

The results indicate the suitability of both mild and severe EtO sterilization methods for improvement of the desired physicochemical properties of gradient TiN/TiO2 coatings.
The process affects some physicochemical properties of biomaterials such as surface chemistry, energy, and wettability that are proved to play important roles in bio-recognition and acceptance by the surrounding tissue [8].
The concentrations (in at%) of the observed chemical elements were calculated by normalizing the areas of the corresponding photoelectron peaks to their relative sensitivity factors.
Mainil-Varlet, Effect of thermal treatment on sterility, molecular and mechanical properties of various polylactides. 2.
Prociow, Structural and surface properties of TiO2 thin films doped with neodymium deposited by reactive magnetron sputtering, Materials Science-Poland, 31(1) (2013) 71-79

Burnishing increased the indentation hardness of the nano-crystalline layer by a factor of 3.5.
Introduction Nano-crystalline materials have attracted considerable scientific interest due to their superior mechanical properties (e.g., high hardness and toughness) without alteration to chemical composition.
Li, Mechanical, electrochemical and tribological properties of nano-crystalline surface of 304 stainless steel, Wear 255 (2003) 836-845
Xu, Effect of surface nanocrystallization on abrasive wear properties in Hadfield steel, Tribology Int., 42 (2009) 634-641
Schubert, Effect of Machining Parameters on Surface Properties in Slide Diamond Burnishing of Aluminium Matrix Composites, Materials Today, Proc. 2S (2015) S156-S161

Study on Computer-aided Optimizing Milling Parameters of Numerical Control Machine Zhao Yu-xia1, a , Xu Hong-hai 2, b , Gao De-wen 3,c 1,2College of Mechanical and Electrical Engineering, North China University of Technology, China 3 No.5 Jinyuanzhuang Road, Shijingshan District, Beijing, P.R.
Introduction Selection of milling parameters is one of the key factors that affect the product quality and productive efficiency during NC machining process.
Milling parameters, such as spindle rotation speed, cutting depth and width, are more important active factor in NC milling process and different combination of them would have different outcome.
Due to the uncertain or random factors such as change of the material properties, abrasion of the tools, heating deformation, etc, would affect the working conditions, subsequently would affect the optimization results.

Introduction PMSM has been widely used in industry, national defense and other fields for the characteristics of simple structure, high power density, high power factor and the high reliability.
Material Properties of PM For inherent characteristics, permanent magnet materials can create a magnetic field in the surrounding space without the external energy after the pre-magnetization (charge magnetism).
Knee Point Calculation Thermal stability refers to the change degree of PM magnetic properties caused by the change of environmental temperature.
The quality of thermal stability directly affects permanent magnet demagnetization.
Beijing: China Machine Press, 1997 [5] D.N.Brown,B.Smith,B.M.Ma,P.Campbell.The Dependence of Magnetic Properties and Hot Workability of Rare Earth-Iron-Boride Magnets Upon Composition.IEEE Transactions on Magnetics,2004,40(4):538-540 [6] M.Negrea,M.Rosu.Thermal Analysis of a Large Permanent Magnet Magnet Synchronous Motor for Different Permanent Magnet Rotor Configurations.2001(IEMDC 2001):777-781

Natesan, Critical factors affecting the high-temperature corrosion, Mater.
H., FeAl-TiC cermets--melt infiltration processing and mechanical properties, Mater.
S., Preparation and mechanical properties of Fe3Al(Ti)/TiC composites, J.
SUN, “Fabrication and Mechanical Properties of Wet Milled TiC-FeAl Alloys,” CD Proc.
Nakao, “Mechanical Properties of Wet Milled TiC-FeAl Alloys under Various Milling Conditions,” CD Proc.

Interface nonlinear affect dynamic stiffness considerably.
However, due to some uncertainties non-linear factors, it is difficult to predict contact behavior and analyze non-linear characteristics.
The material properties are assigned respectively, including elastic modulus E=2.1×105MPa, Poisson ratio , and density In this analysis, the contact relationship to be built occurs respectively between two sheet metals and between the sheet metals and a combined bolt-nut.
It indicates that the proper pretension effect will make the dynamic behavior of connected plates better under non-linear factors.
Journal of Mechanical Engineering Science. 223(2009) 363-375

Then, the cumulative usage factor as well as stress intensities at critical locations of the pressurizer are calculated and compared with corresponding allowable design stress limits.
Finally, after categorizing the stress component, stress intensities and cumulative usage factors at critical locations of the pressurizer are calculated through main finite element analyses and compared with corresponding allowable design stress limit.
However, it is well-known that the finite element analysis results can be affected by the element type and mesh pattern.
Fig. 4 shows the resulting cumulative usage factors at representative critical locations such Cuts 1, 4, 5, 14 and 101, which ensure soundness of the modular pressurizer against failure due to fatigue.
I Design stress intensity values, allowable stresses, material properties, and design fatigue curve (1998)