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The optimized design of the electronic bus stop board Yang Liu, Yunfeng Zhang, Yakui Xing School of traffic and Mechanical engineering, Shenyang jianzhu university, Shenyang 110068, China yang00132@yahoo.com.cn,yunfengzhang2004@163.com,xingyakui@163.com Key words: electronic bus stop board, GPS, GIS, MapX control Abstract: The normal operation of bus system affects the entire urban operation efficiency and future development.
By contrast, the influence of various factors is comprehensively considered with accurate prediction in the multivariate linear regression model.
Bus system operation has its own properties.
(6) The accuracy of time prediction of bus station directly affects the approval and helpfulness of electronic bus stop board, which determines the necessity to develop the electric bus stop board.

Introduction The tool–material interactions under machining conditions modify significantly the properties of metal near surface layers and subsequently their behavior and durability.
For long time, the appreciation of the surface integrity and the properties of the near surface layers affected by machining were based on experimental approaches combining a variety of techniques and methods of mechanical and physicochemical investigations [1-3].
These approaches are expensive and lead to more or less significant uncertainties of surface properties.
Nevertheless, numerical models are rarely used to predict the properties of machined surface for the case of aluminum alloys.
The created heat is transferred to chip, to tool and to workpiece in proportions depending on tool and material properties and cutting conditions.

Microwave Absorbing Properties of Flaky Fe-Si-Al Alloy Powder-Rubber Composites Kyung-Sub Lee1,a , Yeo-Chun Yun2,b , In-Bum Jeong 3,c , and Sung-Soo Kim 4,d 1-3 R&D Center, Changsung Corporation, 11-9, Namdong Industrial Area, Namdong-ku, Incheon, Korea 4 Department of Materials Engineering, Chungbuk National University, heungduk-ku, Gaesin-dong 12, Cheongju 361-763, Korea a kslee121@changsung.com, b ycyun@changsung.com, c ibjeong@changsung.com, d sskim@chungbuk.ac.kr Keywords: magnetic composite, absorber, reflection loss, permeability, permittivity, flake Abstract.
The frequency profile of complex permeability (μr) and permittivity (εr) and their relationship with microwave absorbing properties are investigated in soft magnetic metal-polymer composite materials.
Thin flake Fe-Si-Al particles were prepared by mechanical forging of spherical powders using an attrition mill.
It is evident that the permittivity of magnetic composite was strongly affected by the thickness of flaky powder and aspect ratio variation as shown in figures 3 and 4.
This is believed that the decrease of the permittivity and density of the flexible sheets manufactured in calendaring process may be factors responsible for the shift to high frequency of maximum reflection loss peak.

The formation of intermetallic phases alters the properties of duplex stainless steel and is therefore a crucial factor in its performance.
The presence of these phases deteriorates the properties of steel, due to the uneven distribution of alloying elements and their depletion in adjacent regions [1, 2, 4, 5, 6].
The cooling rate is an important parameter that can affect time and temperature during exposure of the material to heat treatment or under working conditions.
Conclusion The cooling rate used after the solution annealing treatment affects the corrosion resistance of 2205 DSS.
Alvarez Armas: Recent Patents on Mechanical Engineering Vol. 1 (2008), p. 51

Additional important factor was that the material was cut without application of a coolant.
In the Table 2 the most important mechanical parameters of materials are tabulated.
a) ERTHALON 6 PLA (PA 6G): cast material, white colour, wear resistant, good machining properties, thermal ageing resistant, ,cross section homogenous structure retrieve during crosslinking process in form, similar parameter as ERTHALON 66 SA commonly applied for turning in lathe machines, b) ERTHALON LFX (PA6 + oil): cast material, green colour, capable of self-lubricity, reduced friction factor, thermal ageing resistant, wear resistance is ten times higher than ERTHALON 6 PLA, cross section homogenous structure retrieve during crosslinking process in form, c) NYLATRON GSM IPA 6 (MoS2 additive): cast material, grey-black colour, good machining properties, thermal ageing resistant, dense crystalline structure, cross section homogenous structure retrieve during crosslinking in form.
Additional factor that has an influence on a turning process is chips stiffness.
The oil high temperature circumstances affect the polyamide and surface peels itself during turning process.

In particular, friction is a very influencing factor in Tube Hydroforming (THF), where high die-part contact pressure and area make the material sliding very difficult.
This technology is characterized by tooling and assembly costs reduction and by part mechanical properties, weight and dimensional accuracy improvement [1-3].
The most important parameters that influence the results in tube hydroforming are the optimal combination of the internal pressure and axial feeding vs. time, the sheet and the tube material properties and the friction between workpiece and die [1]. 1.
The dies are closed by a mechanical locking system.
Moreover, the use of an average value for mexp does not affect the results and allows to overcome the results scattering.

It appeared that the count of linen yarn treated with acid cellulose can be not only increased 6-8, breaking strengthen retain ratio can arrive 88%-99%,but also breaking lengthen change less, comprehensive properties reached equilibrium.
Results and Discussion According to the condition of cellulase function, this paper uses orthogonal experiment of four-factor and four-level(L16(44)),experiment factors include concentration of enzyme,PH value, temperature and time.Besides,we analyse the experiment results,which is based on the performance index including the weightlessness,breaking strength and breaking elongationg.As a result, we can conclude the optimum technology condition of the process of acid cellulase.Results showed in Table1.The result and analysis of orthogonal experiment showed in Table 2,Table 3.
number Temperature (˚C) PH Time (min) Concentration of enzyme (%owf) Weight of 10m yarn(g) decrement rate % (toalkali desizing) breaking power (N/m) breaking strength (CN/Tex) Breaking elongation(%) alkali desizing 0.315 122.90 51.20 2.95 1 35 3.5 35 5 0.310 0.95 112.6 46.91 3.03 2 35 4.5 45 2 0.272 13.65 88.60 36.91 2.55 3 35 5.5 55 3 0.280 11.11 81.20 33.83 2.40 4 35 6.5 65 4 0.309 1.90 77.20 32.16 2.60 5 45 3.5 55 4 0.312 0.95 54.90 22.87 2.02 6 45 4.5 65 3 0.281 10.79 94.80 39.50 2.37 7 45 5.5 35 2 0.290 7.94 73.00 30.41 2.19 8 45 6.5 45 5 0.300 4.76 68.40 28.50 1.96 9 55 3.5 65 2 0.281 10.79 84.60 35.25 2.63 10 55 4.5 55 5 0.257 18.41 69.40 45.35 2.03 11 55 5.5 45 4 0.294 6.67 114.20 47.58 3.10 12 55 6.5 35 3 0.304 3.49 89.20 37.16 2.45 13 65 3.5 45 3 0.314 0.32 117.20 18.83 3.08 14 65 4.5 35 4 0.309 1.90 90.60 37.75 2.67 15 65 5.5 65 5 0.312 0.95 129.00 53.75 3.24 16 65 6.5 55 2 0.312 0.95 105.40 43.91 2.97 Table 2 The result and analysis of orthogonal experiment 1 factors
indexes temperature(˚C ) PH value 35 45 55 65 3.5 4.5 5.5 6.5 Weight average（g/10m） 0.293 0.296 0.284 0.312 0.304 0.280 0.294 0.306 variance 0.028 0.026 The count of linen（m/g） 34.13 33.78 5.21 32.05 32.89 35.71 34.01 32.68 variance 3.16 3.03 Mean break strength (CN/Tex) 37.45 30.32 41.34 46.06 38.47 39.88 41.39 35.43 variance 15.74 5.96 Mean break elongation% 2.645 2.135 2.553 2.990 2.69 2.405 2.733 .495 variance 2.51 0.328 Table 3 The result and analysis of orthogonal experiment 2 factors indexes time（min） concentration of enzyame（%） 35 45 55 65 5 2 3 4 Weight average (g/10m) 0.303 0.295 0.290 0.296 0.295 0.289 0.295 0.306 variance 0.013 0.017 The count of linen（m/g） 33.00 33.90 34.48 33.78 33.90 34.60 33.90 32.68 variance 1.48 1.92 Mean break strength（CN/Tex） 38.05 40.46 36.49 40.17 43.63 36.62 39.83 35.09 variance 3.97 8.54 Mean break elongation% 2.585 2.673 2.355 2.710 2.565 2.585 2.587 2.598 variance 0.355
And in the analysis of variance of the yarn count above, the sequence of four factors that influence on the degree of the yarn count are :temperature>PH value>enzyme concentration>time, Now according to this, it must be strictly control temperature and PH value,otherwise it will greatly influence the yarn processing effects.

Therefore, EAM is one of the most effective ways to simplify the processes, improving the reliability of the manufacturing processes and enhancing the properties of the final products.
As previously reported, another phenomenon involving the electroplastic effect is the dynamic recrystallization and phase transformation at a relatively low temperature occurring in a short processing time, formation of a special texture, and enhanced mechanical properties after EP manufacturing [5].
It is known that a magnetic field influences plastic properties of ferromagnetic mainly by displacing domain walls.
The application of both continuous and pulsed electric current and the effect on mechanical properties and plastic flow will be investigated in similar ways, leading to a better understanding of effect of the various parameters on the metal electroplasticity.
Machlin, Applied voltage and the plastic properties of ‘‘brittle’’ rock salt, J Appl.

Physical and mechanical property of the material was a key basis to determine the slope stability of waste pile.
Different material composition and diameter combination are all key factors that influence slope stability of waste pile.
As far as slope stability of the waste pile is concerned, difference of gradation and strain history are key factors of influence on failure.
References [1] Guanglong Huang, Jian Zhou, Xiaonan Gong: Stress-strain and Shear Strength Properties of Rock and Soil Materials of Waste Pile in Open Pit Mines.
[9] Jingping Wu, Yao Chu, Zhigang Lou: Influence of Particle Breakage on Deformation and Strength Properties of Calcareous Sands.

If the properties of biodegradability and bioactivity are to be combined in an optimised scaffold for bone tissue engineering, then the design of composite materials offers an exceptional opportunity; by combining bioresorbable polymers and bioactive ceramic phases, scaffolds with tailored physical, biological and mechanical properties can be produced.
® particles Degradation in phosphate buffer saline affected by Bioglass® additions [20] PDLLALMW and PLGA75 7.1- 11.8* (0-40 wt %) Pore volume decreased with increasing amount of Bioglass® Mechanical properties improved by addition of Bioglass® The presence of Bioglass® delayed the polymer degradation rate [21] PLGA75 not reported Filler (40 wt%) Scaffolds of tubular shape with oriented porosity [22] PDLLAHMW > 90 Filler (5, 40 wt%) Cell adhesion and proliferation using lung cells [23] *pore volume (cm3/g) Bioglass® coatings were made using a slurry-dipping technique, as described in previous studies [26].
Discussion The thermally induced phase separation (TIPS) technique considered here for fabrication of porous composite scaffolds offers many advantages [5, 19], in particular: (i) optimal control over pore volume fraction, (ii) possibility of designing pore shape, orientation and size, (iii) amenable to be applied to any polymer soluble in a suitable solvent, (iii) reproducibility, and (iv) possibility to incorporate bioactive substances or growth factors into the polymer matrix.
Conclusions The PDLLA/Bioglass® and PLGA/Bioglass® composites produced by thermally induced phase separation process, as reviewed in this paper, exhibit a very attractive combination of biodegradability and bioactivity properties in a highly porous architecture, promising ideal scaffolds for tissue engineering.
Moreover, the use of Bioglass® particles both as fillers and coatings in foam-like scaffolds adds to the possibilities of tailoring of the time-dependant mechanical properties and the rate of in vitro (and in vivo) resorption of composite scaffolds for the required application.