Search results

The implant surface characteristics was recognized to be a critical factor for initial osteogenesis and modulate the growth and remodeling of the bone at the bone-implant interface [1,2].
Titanium (Ti) and its alloys have been widely used as clinical implants because of their good biocompatibility and mechanical properties to many applications.
In this study, we investigated in vitro and in vivo biological behavior and biomechanical properties of newly developed FHA coatings on Ti implant as a potential biological bone implant and its application.
Obviously, cell numbers were affected by surface with bioactive coatings.
Our results suggested that FHA coating has a beneficial effect on biological properties and the interfacial shear strength.

High speed cutting used smaller cutting parameters thus can be applied directly to the finishing process and parts with poor mechanical properties, such as thin-walled work piece, aluminum alloy parts and parts of hard brittle material, etc.
The high-speed machining, affect the service life of cutting tools are the major factors: tool materials and the work piece material the matching relation, cutter geometrical shape, processing methods, cutting capacity, cutting vibration, cooling liquid etc.
As compared to feeding, cutting depth of the change has the effect of surface roughness is not obvious, figure 3-4 for high speed milling 45# steel cutting depth when the surface roughness of the influence law of the curve, although when cutting depth increases, the surface roughness also increase, but its change small scale, the curve is relatively flat, it indicates that the three factors of cutting processing, cutting depth on the surface processing the influence on the quality of is the smallest, so the high-speed machining, can increase cutting depth by appropriate to improve manufacturing efficiency.
To feed the cutting force is the main reason for the increase, and cutting force directly affect the process stability.
Mechanical design and manufacturing, 2006 (5): 95-96

This property makes submicron machining achievable with laser irradiation.
An another key problem in the application of the models based on TTM for quantitative description of the kinetics of the energy redistribution in the irradiated metal is the temperature dependent thermophysical properties.
These dimensional parameters include electron heat capacity ce, lattice heat capacity cl, electron-phonon coupling factor G, optical penetration depth and evaporation latent heat .
Figure 4 shows the effect of electron-phonon coupling factor on the ablation depth per pulse.
Fig. 4 Variation of ablation rate with laser fluence for different electron-phonon coupling factors.

It synthetically considerate the factors affecting SDAV method, the physical and mechanical properties of the high water content sludge, and their influence to the efficiency of sludge dewatering.
Research on influencing factors of dredged sludge dewatering behavior with Aeration-Vacuum technique[D].

The content and distribution of pore defects are related to the type of resin (different types of resins have different constituent materials, wettability, and rheological properties) and process parameters (temperature, pressure) [15].Pore defects have a significant effect on mechanical properties of composite structures [16,17].Li et al [16] investigated the effect of curing pressure on basic mechanical properties (including tensile, compressive, flexural, and shear properties) of CCF800H/AC531 composites, and found that when the curing pressure was lower than the effective pressure, the internal bubbles in the members were difficult to be eliminated by pressurization, and the mechanical properties decreased by at least 40% at room temperature.
The porosity defined in this way cannot distinguish the location of voids distribution, which affects the inter-ply properties of the composite parts [18].
A finite element calculation of stress intensity factors by a modified crack closure integral.
Effects of porosity on the mechanical properties of additively manufactured components: a critical review.
Effects of variation in autoclave pressure, temperature, and vacuum-application time on porosity and mechanical properties of a carbon fiber/epoxy composite.

Reviews on Automobile Abnormal Sound Fault Diagnosis Tan Guiling1, a, Miao Dehua1,b*,,Qi Yuming1, c, Deng Sanpeng1, d 1School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China atanguiling@sina.cn, bmiaodh@126.com, cqiyuming1221@gmail.com, dsanpeng@yeah.net *Author for correspondence: Miao Dehua(1957-), Male , Dr.
As a result, it will reduce the number of traffic accidents, protect human safety and property.
Automotive abnormal sound will not affect the car's driving immediately, but it will seriously affect the ride comfort, causing the passenger irritability, decreasing the attention of the driver or other adverse symptoms.
Lu Jianwei etc, from College of Mechanical and Automotive Engineering of Hefei University of Technology, analyzed the transmission gear abnormal sound failure from the perspective of nonlinear dynamics [9].
Brake abnormal sound The abnormal noise, made by the automobiles when breaking, is probably arose by these factors, such as the improper use of the material or big distortion of Brake Disc or the hardness, the Porosity, Friction Characteristics and squeezing properties of Brake Friction Lining are unqualified.

By examining the dynamic flow properties of MHD dusty Casson nanofluids, the study elucidates how they can be beneficial in different industrial procedures.
Brownian motion and thermophoresis, when combined in nanofluids, can result in better heat transfer properties.
The primary objective of this research is to examine how different factors, including thermal radiation, activation energy, binary chemical reactions, and variable transport properties, affect the flow of nanofluids and heat transfer over a permeable stretching surface in a non-Darcian Casson flow.
The research challenges the traditional assumption of constant fluid properties and suggests that factors like viscosity, thermal conductivity, and thermal diffusivity change with temperature.
The Casson parameter, which is connected to the yield stress of the fluid, is one of the factors that determines how the velocity profile of the fluid moves through the pipe.

Electrical discharge machining (EDM) is regarded as one of the most effective approaches to machining Ti–6Al–4V alloy, since it is a noncontact electro-thermal machining method, and it is independent from the mechanical properties of the processed material.
Using these plots one can actually predict the best combination of factors to meet experimental goals.
Analysis of variance (ANOVA) is performed for analyzing design factors.
MRR tends to increase, considerably with increase in peak current for any value of other factors.
As our goal is to minimize the tool wear rate, we obtained minimum value at lower values of design factors.

Also, the relationships between motor speed, torque and vehicle speed are calculated according to the mechanical properties of the vehicle.
The electromagnetic interference (EMI) will affect the low voltage sensitive devices, which are important control or implementation units in electric vehicles.
The power converter model is shown in [2] [3] and the high frequency model of electric motor is given in [4].Also, the power battery, which is the most different part between electric drive systems used in electric vehicles and other cases, is analyzed to get its I-V performance [5] and radio frequency (RF) properties [6].
These different working conditions will bring different time domain and frequency domain expressions, which affect the conducted EMI.
[6] E Hoene, et al.: Rf-Properties of Automotive Power Batteries, IEEE Int.

Rao, Extraction and tensile properties of natural fibres: vakka, date and bamboo, Compos.
Verpoest, Morphological aspects and tensile mechanical properties of single bamboo (Guadua angustifolia) fibres and flexural characterization of bamboo/epoxy composites, J.
Wang, Resistance of natural baboo fiber to microorganism, and factors that may affect such resistance, Bio Resour. 8(4) (2013) 6501-6509
Yamamoto, Development of bamboo-based polymer composites and their mechanical properties, Compos.
Pickering, Properties and performance of natural-fiber composites, Elsevier (2008) 248.