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Introduction Calcium phosphate-based powders, granules and coatings are currently used for a number of dental and skeletal prosthetic applications due to their excellent biocompatibility and osteointegration properties [1].
First water and nitrate are reduced at the cathode surface producing hydrogen gas, nitrite and hydroxide ions, as shown in the following: 2 H2O + 2e - ⇔ H2 ↑ + 2 OH (1) NO3- + H2O + 2e - ⇔ NO2 + 2 OH - (2) Due to Faraday`s laws: Fz M m eNz M m tIQ a ⋅⋅=⋅⋅⋅=⋅= , � Fz MtI m ⋅⋅⋅ = (3) where Q is the charge, I the current, t the deposition time, m the mass, M the molecular mass, z the charge number, Na the Avogadro constant, e the electrical charge of an electron and F the Faraday constant (F = 9.648*104 C/mol), the amount of OH ions on the surface of the cathode can be controlled by controlling current and deposition time.
Wave Number / cm -1 DCPD 0 200 400 600 800 1000 1200 1400 D M B αααα Intensity / a.u.
The microstructure of electrodeposited TCP could be controlled by adjusting deposition parameters and thus nucleation and grain growth conditions.

Introduction The wireless sensor network is a self-organizing network system that with large numbers of cheap and tiny sensor nodes deployed in monitoring areas which integrated with sensor, processor and wireless communication module.
Design of System Software A.Software Design of sink node After initialization of sink node, set up the sensor network at first, and send control commands information to sensor nodes, and set the sensor nodes correspondingly, such as the number and sleep time set and battery power of sensor nodes.
Table 1 Consumption current in different working state of sensor nodes (unit: mA) Node number Dormancy Work Send Receive 1 0.04 5.2 16.3 16.5 2 0.05 5.3 16.3 16.6 3 0.04 5.2 16.3 16.5 Set Node 1 as an example to estimate the working time of the sensor nodes, set the sampling time interval to 10s, then the duty cycle of sensor node is 10s, assume that the send state of CC1110 was 20ms receiving state was 30ms, sampling time was 20ms within 10s, the rest time was in sleep state, then average current in a working cycle of the sensor nodes is: in the working cycle between 0 and 10， The average value of I calculated is 0.132mA, therefore, the continuous working time of the sensor mode is： （month） That is to say, the sensor mode can continue working in a year since the battery is fully-charged，and thus, the requirements and our goal of the wireless sensor mode with low power needed is achieved.
It's widely used in temperature test, temperature monitoring of grain storage and other fields.

The system rotates with an eccentricity of 22.5mm for fixed numbers of revolutions 100, 150, 600, 750, 1500, 2100, 6000 and 12000, corresponding to different abrasion stages.
The determination of the abrasion class, based on the lowest number of revolutions, inducing an apparent visual variation in gloss, was also determined.
Material Steel ball Ø 5 [mm] Steel ball Ø 3 [mm] Steel ball Ø 2 [mm] Steel ball Ø 1 [mm] Fused Al2O3* Distilled water [ml] [g] 70.0 52.5 43.75 8.75 3.0 20 * grain size F80 ISO 8486 - 1986 Results and Discussion Table 2 reports the Vickers hardness of the samples, measured at the specified indentation loads.
After the tests at the lower numbers of revolutions, corresponding to Table 2.

It includes diameter, number and layout of holes.
Number of radial holes is less than 120.
Table 1 Grinding wheel parameters Radial holes Types of abrasive Diameter of grinding wheel Width of grinding wheel Abrasive grain Binder type Number of radial holes No White corundum 350mm 40mm 150 Ceramics — Yes White corundum 350mm 40mm 150 Ceramics 4×20 Four experiments are completed, i.e. idling experiments without and with cutting fluid, contrast experiment on inner cooling grinding of TC4 under different flow(Table 2), and contrast experiment on inner and outer cooling grinding of TC4(Table 3).

Introduction Friction welding (FW) appears to offer a number of advantages more than arc welding of steels.
The use of this joining process normally is correlated with the condensed development of these inter metallic phases, reduce grain enlargement in the HAZ, and boundary deformation and stress cracking in steels.
This is done to reduce the number of experiments in the research work.
The hardness test specimens are machined in all samples and to calculate the Vickers hardness number [12, 13].

The average dendritic grain size of the substrate was 0.66 mm, measured by linear intercept method on the polished cross and longitudinal sections.
Density of cracks and number of cracks in individual crack trajectories are shown in Table 2 and 3 for each specimen.
Table 2 Parameters of interrupted fatigue tests and crack classification Sample εa [%] N Crack density [cracks/mm] Delamination Number of cracks [-] [cycles] [%] total a b c d e  f g LC020 0.29 20 1 -  No 0 - -  -  -  - - -  LC024 0.29 200 10  0,60 No 7 7  - -  -  - - -  LC007 0.29 1773 100   2,98 Yes 37 23 1 2 4 4 1 2 Table 3 Parameters of fatigue testing and crack classification Sample εa [%] σa [MPa] Nf [cycles] Crack density [cracks/mm] Delamination Number of cracks [-] total a b c d e f g LC007 0.29 329  1773 2,98 Yes 37 23 1 2 4 4 1 2 LC003 0.24 282 4796 1,09 Yes 22 14 3 1 3 1 - - LC014 0.16  238 8514 0,86 Yes 10 5 2 - - 3 - - LC019 0.14 190 40395 0,77 Yes 9 2 5 2 - - - - Acknowledgements The work presented in this paper has been supported by the Grant Agency of the Czech Republic by the projects Nos.

The size of the powder grains varies between 5 µm and 30 µm.
In the case of the WC-Co deposition, the number of passes of the robotic arm was higher and a thickness of about 270 µm was obtained in comparison with the mechanically mixed WC-CoMo powder which was sprayed applying 50 passes, resulting an approximately 200 µm coating thickness.
For coarse granulometric fraction of -40 +15 µm, a porosity of about 2% was reported and for finer grain size of -20 +5 µm a porosity of approximately 1.3% was achieved [9].

Some of these include products that are for: · stronger structure · stronger pavement in roads · water treatment Conclusively, there are a large number of applications of nanotechnology in civil engineering.
The copper nanoparticles can reduce the surface unevenness of steel which then limits the number of stress risers and therefore, hence fatigue cracking.
The addition of nanoparticles of magnesium and calcium makes the heat affected zone grains finer in plate steel and this leads to an increase in weld toughness.
· A number of developments can potentially improve the time and life-cycle cost of civil engineering projects.

Rammer Rammer should adopt the form of a circular base .The area of hammer bottom should be determined by the nature of the soil .The static pressure value of hammer bottom is desirable 25 ~ 40kPa, it should take a small value for fine grained soil .
The filler number should be recorded.
Finally, ramming pit depth for every hit need record , and so forth until the number meets specified compaction and control standards.
·The tamping number and amount on each point should be checked according to design requirements ,and the ram mark lap 1/4.

Rock is a multiphase material composed of several kinds of mineral grains, cements, micro-pores and cracks.
The plane distance λCPI is calculated as follows: (1) Where L represents the length of dissect line along a particular direction and NLC denotes the number of micro-crack crossed by the dissect line.
By using equation (3), two end-points of each microcrack can be calculated as: (3) In the equation, , is the starting point coordinates of number i microcrack and , the ending point coordinates, ,the center coordinates, is the length of number i microcrack and the azimuth angle.