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The objectives of the following study are to improve the temperature simulation based on Finite Element Methods (FEM) by connecting multi-influenced factors within the model with the input parameters.
(5) Factor bw includes the workpiece material properties, thermal conductivity kw, specific heat capacity cw and density ρw.
In this research, a material model with temperature dependent material properties was implemented which avoided the limitation brought by assuming constant thermal properties in analytical approaches.
The heat flux reflects the contact load within the grinding zone, and is originated from the tangential load as shown in equation (1), but presented approaches above did not include these factors to derive the heat source profile.
The shown difference in the maximum temperature position helps researchers understand the duration of temperature affecting the surface contrasting between different heat profiles.

Compressive Strength Regarding mechanical properties, compressive strength of cement mortar was tested according to EN 1015-11.
The measured mechanical properties show that the average compressive strength of mortars is around 41.1 MPa (see Tab. 5 to 7 and Fig.4).
The microsilica additive had the greatest influence on the mechanical properties.
This results in a denser structure of the concrete which thus improves the mechanical properties.
At the same time, this material should have comparable mechanical properties to conventional concrete containing CEM I 42.5.

Introduction The tensile testing is an important method for determining the mechanical properties of plastics and other materials as well as for assessing the quality of some production technologies, such as injection molding and additive manufacturing (AM).
In [7] the mechanical properties of additively manufactured ABS components were investigated.
Of these factors, the authors themselves note, that gaps arise at the center of the specimen.
It is visible that with nozzle diameter of 1 mm, the path of the strands and the uneven contacts between interior and outline are factors that will cause stress concentrations.
Determination of tensile properties.

The mechanical properties of bricks as simple compression and flexural strength, are simulated and obtained, applying the experimental Griffith criterion and method finite element simulation method.
This kind of ceramic waste has great potential to be recycled and reused in various industries, being an environmentally friendly alternative through sustainable management in the development of new materials for construction [3] Zúñiga [4] in his research indicates that the fabrication process has not been industrialized in Ecuador, so its properties are seriously affected due to original brick materials not reach the correct firing temperature.
Mechanical characteristics.
Attribute control Property Result Color 7.5 YR 4/7 Consistency Loose Texture Sandy Chemical-mineralogical analysis.
Brick wastes samples Mechanical analysis.

During this process the collective energy affects the surrounding material in different forms.
Therefore it is very important to study the inner relationship between gathering energy and physical factors of medium in ultrasonic applications.
HI ultrasound acts material with unique energy forms (cavitation, mechanical, thermal, etc) and different interaction mechanism [2].
Therefore, it is hard for them to explain what conditions can promote the transferring process of biological active ingredients and what factors will destroy the medicinal properties.
Among them, amplitude of sound source (energy), speed (momentum), acceleration (impulse) and other dynamics parameters are key factors to form a transient ultrasonic cavitation.

The current actual capacity of LiFePO4 has reached 160 mA⋅h⋅g-1, but after only a theoretical capacity of 170mA ⋅h⋅g-1, affecting its total energy; Li3V2 (PO4) 3 with 200 mA⋅h⋅g-1 around is higher than the capacity, but the cycle is less stable [4].
The addition of metal ions in the cathode material LiFePO4, replace the lattice position of Fe, the lattice defects and promote the diffusion of Li +,which can improve the internal conductive properties.
The LiFePO4 sample is a synthesis method using combined solid phase synthesis and mechanical milling.
Cell collapse causes the structure becomes unstable, so that is not conducive to the lithium ions in the charge and discharge process in the three-dimensional structure of dropping into and block out, thus worsening the electrochemical properties of cathode materials.
Fig.5 Charging/discharging profiles of P1 at the first cycle of LiFePO4 and 0.05c Conclusions The purpose of doping of Mg2+ ion improves the olivine type structure of LiFePO4 low intrinsic conductivity, so as to improve the electrochemical properties of materials.

Design Research on Working Mechanism of Beam Pumping Unit Jun Liu 1,a and Jiang Zhu 2,b 1 School of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang, 222005, China 2 School of Mechanical and Electrical Engineering, Changzhou College of Information Technology, Changzhou, 213164, China a liujun600322@sina.com, b zhujxq@126.com Keywords: Beam pumping unit, Evolutionary solver, Design model Abstract.
In design optimization on the beam pumping unit, the defined design objective is the most important factor, as it not only influence design scheme quality, also can affect the design course.
Instead, a penalty factor was applied to each design if the constraints were violated.
The fitness function is： ，where R—penalty factor，R=25000.
Wei: Mechanical Research and Application, (2008), pp. 159-162

Factors, such as cutting force, cutting heat, clamping force and internal residual stresses, etc., will generate machining deformation.
The main results of these studies can be classified into two categories: method based on certain material properties and method based on removing part of the material [5-6].
The stresses retrieval utilizes the material to be removed during rough machining, thus it has little affects on machining efficiency.
The grads of stress field and capability of interpolation method are two factors affecting the error.
Secondly, the stresses field with sharp grads is hard to be set as the initial condition because its peak values will reduce abruptly which is an uncertain factor for deformation prediction.

This paper adopts numerical simulation and combination with experiments, analyzes the factors which affect the cold extrusion of vehicle gear sleeve with spline.
The main factors affected P is the semi–cone angle α of die.
It would get refined grains; consequently the mechanical property of the product would be improved.
It indicates that the mechanical property of the forged part is better than the machining made to the vehicle gear sleeve with spline.
The wear resistant property of the vehicle gear sleeve with spline was greatly improved.

Analysis by Vickers indentation resulted in hardness of 11.2 GPa and fracture toughness of 24.6 MPa.m1/2, showing the feasibility of producing dense WC-Fe3Al composite with high mechanical properties using the SPS technique.
In these composites, the high hardness of WC grains combined with the ductile matrix, usually cobalt (Co), results in excellent combinations of mechanical properties, especially hardness and fracture toughness [1].
Some variables that affect the formation of compounds by mechanical action include time and energy of milling, which depend among others factors on the ball-to-powder mass ratio (BPR), speed and number of balls [11].
Fig. 4a shows the results of mechanical properties of the composite WC-10% Fe3Al, which had Vickers hardness (HV) of 11.3 ± 0.5 GPa and fracture toughness, KIc, of 24.6 ± 5.6 MPa .m1/2.
The composite had high density of 13.697 g/cm3 (98.7% of theoretical density) and mechanical properties (hardness and fracture toughness) similar or higher than the conventional composite WC-10 wt% Co.