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It was revealed that, in general the peak current significantly affected the EW and SR, while, the pulse duration mainly affected the MRR.
Performance characteristics such as EWR, MRR and Ra were evaluated with respect to discharge current, open voltage, pulse duration and duty factor by machining of Ti–6Al–4V alloy.
The quality of a machined surface is an important factor in evaluating the productivity of machine tools and machined parts.
Surface roughness is a significant design factor that has considerable influence on properties such as fatigue, strength and wear-resistance.
International Journal of Mechanical and Materials Engineering (IJMME), Vol. 4 (2009), No. 1, 19 -23.

Rapid Prototyping for Treatment of Cranial Reconstruction Surgery Yadong Chen1, a, Hu Li1,b ,Wenzheng Wu1,c and Wanshan Wang1,d 1 School of Mechanical Engineering and Automation, Northeastern University, Shenyang, PRC aneucyd@163.com, bhhuli@mail.neu.edu.cn, cwenzheng.wu@gmail.com, dwws@mail.neu.edu.cn Keywords: Cranioplasty Reconstruction;Rapid Prototyping; Computer Applications Abstract.
The accuracy of RP bio-models depends on various factors associated with all phases of the process.
The reconstructed CT data was transferred to a CD and loaded into the Mimics software that is used at the Rapid Prototyping (RP) Laboratory at the School of Mechanical Engineering and Automation, at Northeastern University.
Fig. 2 CT images According to the Cranial CT images, the surgeon could understand most of the affected parts of the skull.
Fig. 5 SLA-250 from Objet Geometries Titanium has good properties for medical applications, such as excellent biocompatibility, specific strength, low density, and good corrosion and oxidation resistance.

Rigorous quantum mechanical calculations of ionization cross sections have only appeared in the literature recently and only for some simple atoms in their electronic ground state [4].
The rigorous theoretical treatment of ionization cross sections for a wide range of impact energies from threshold to thousands of electron volts ( hereafter referred to as “deductive approach”, since they start from general principles and deduce expressions for special cases under well-defined conditions) of an atom is beyond the capability of current quantum-mechanical electron collision theory [5].The need to incorporate ionization cross sections for these targets in modeling codes for various applications has stimulated interest in the use of less rigorous approaches such as semi-rigorous methods that incorporate aspects of established collision theories and some quantum mechanically calculated target properties to the calculation of the ionization cross section ( hereafter referred to as “inductive approaches”, since they start from special cases and attempt to derive expressions of general applicability) as well as various fitting formulas [6].
The largest difference (factor of 2) between calculated and measured value is found for uranium.
As for the rest of the elements, one of them are within 12%~30% of the measured values (He), 2 elements are within 31%~100% (C, N) and for 3 elements (O, F, Ne) is overestimated by a factor of 0.51.
The accuracy of experimental data to a large extent affects the calculation results of electron-ion collision.

Table 2 provides information about the properties of rubber particles.
This recovery of strength is attributed to three factors.
Hassan, An overview of fresh and mechanical properties of rubberized concrete, Discov.
Petrescu, Mechanical Properties of Rubberized Concrete at Elevated Temperatures, J.
Khitab, Enhancing Physical, Mechanical and Thermal Properties of Rubberized Concrete, Eng.

Modification of the Magnetic Properties of Co2Y Hexaferrites by Divalent and Trivalent Metal Substitutions Sami H.
Classification and Properties of Hexaferrites 2.1.
The mechanical grinding was carried out for 16 hours at a rotational speed of 250 rpm.
However, the magnetization of the high temperature phase was reported to be small [127], and therefore can hardly affect the magnetic properties of the sample.
Elhalouani, Structure, magnetic properties and Mössbauer spectra of La0.67Sr0.33FexMn1-xO3 manganites oxide prepared by mechanical ball milling method, Hyperfine Interactions 211 (1-3) (2012) 153-164

Under such conditions, the mechanical behaviour of many alloys, in terms of both strength and ductility, can be strongly affected by strain rate [1] that, in turn, can also influence the frictional behaviour at the workpiece-tool interfaces.
Accurate material characterisation tests are required to determine material properties and to describe the mechanical behaviour of engineering materials at different strain rate values [2].
The process was simulated at two different height reductions (30 and 60%), using frictional factor values allowing the obtaining of the same ring dimensions measured from the experiments.
· the lubrication of the tool-specimen interface strongly affects the variation of the inner diameter, in particular at high strain values.
Kolsky, An investigation of the mechanical properties of materials at very high rates of loading, Proc.

Based on different formulas and processes, it has good dielectric properties or excellent semiconductor properties.
Due to the peculiar material properties of the SrTiO3 substrate (High hardness, extremely uneven, high brittleness, and very thin), this leads to be easily destroyed (Rupture, scratch crack, pits) in case of the current machining process.
The pore not only has a serious impact on the accuracy and surface roughness of the final surface but also has a negative influence on physical properties, mechanical properties, using performance and subsequent electronic manufacturing process of the substrate.
So the compactness of sintered SrTiO3 is one of the key factors influencing its wide application.
Zhang: China Mechanical Engineering.

In actual operations, surface quality is greatly affected by a number of machining factors in high-speed end milling process.
Nevertheless, the effects of the material physical properties, such as hardness and plasticity, on surface roughness are not neglected. 0 0.1 0.2 0.3 0.4 0.50.1 0.16 0.26 0.4 a p (mm) Ra (μm) P 20 0.45%C 0 0.1 0.2 0.3 0.4 4567 a e (mm) Ra (μm) P 20 0.45%C (a).
The feed rate and axial depth of cut are the dominating factors for 0.45%C steel.
As it can be observed, the feed rate will affect the surface roughness severely among the cutting parameters.
Yuan: Experimental technology for metal cutting (Mechanical industry Press, Chinese 1988)

Austenitic stainless steel is considered a promising choice for high-temperature applications due to its excellent corrosion resistance, strong mechanical properties, and thermal stability across a wide temperature range.
The characteristics of the coating layers and their constituents are influenced by various factors, including composition, metal source, temperature, and time [4].
The impact of growth in inward and outward directions on the microstructure and properties of the Al2O3-modified aluminide coating has yet to be thoroughly explored.
Q FeAl (Kj/mol)   Literature 249.5[20]   278 [25]   250 [26]   211 [27]   180 [23] This work 343.15  Variations in activation energy values are attributed to factors such as microstructure, prior surface conditions, carbon content, substrate, and other alloying elements affecting aluminide layer growth [20].
Yin, Microstructure, growth kinetics and mechanical properties of interface layer for roll bonded aluminum-steel clad sheet annealed under argon gas protection, Vacuum 151 (2018) 189–196

This revealed that the compositions of PEDOT:PSS influence the optical properties of hybrid PEDOT-PSS:PANi thin film.
This is due to the physical properties of polymers that have high resistivity and dielectric properties.
A conjugated polymer such as PEDOT:PSS has a unique mechanical, electronic and optical properties and recently been used as a material for several technology and commercial application such as sensors, memories, solar cells and light-emitting diodes (LEDs) [4].
PANi (polyaniline) is non-conjugated conducting polymer that has excellent physical and chemical properties, it can be prepared as a conductor, insulator and semiconductor with a colorable properties [6].
PANi received much attention due to its high electrochemical, optical properties and environmental stability.