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Considering the situation of contraction of teaching hours and reduction of research funding in university, it should not occupy extra classes as far as possible. 
A series of links and steps of practice ,including: consulting literature and data, reporting the topics of project, designing steps of the research, implementing it, and writing papers and a concluding report, enables students to learn a lot of things that they can’t learn from the simple classroom, inspires the students’ independent thinking and awareness of innovative, improves their scientific literacy greatly, and makes some students with a strong ability to stand out,  and a good foundation for research work in the future.

Morphometrical analysis based on the micro-CT data images was also performed by 3D trabecular bone analysis software TRI/3D-BON (Ratoc System Engineering Co.
In general, an op/op mouse is generally characterized by skeletal calcification, a short length of long bones, and a loss of marrow cavity, all of which are derived from a severe reduction in the number of osteoclasts [13,14].

This means, there is neither delamination of the coating from titanium surface nor a massive reduction of layer thickness.
Overall, the inflammatory response seems to be mainly associated with the activity of macrophages (data not shown, manuscript in preparation).

One of the key factors to improve the efficiency of power devices and modules is the reduction of the static losses.
The fit of the data allowed to determine a barrier height FB=0.71 eV and a carrier concentration NA= 5´1019 cm-3.

Therefore, the parameterization of the damage has been represented by a reduction factor or damage index of the element bending stiffness.
Since the data used in this example were obtained through experimental tests, the difficulty of the identification procedure increases because of the uncertainties introduced in the tests.

VFAs production and composition Fig.5 VFAs production at various pH (The data was deducted the initial acid content) The mainly products of anaerobic fermentation bio-hydrogen production were ethanol, acetic, propionic, butyric and valeric.
The possible reason was that the growth of hydrogen consuming bacteria was promoted by low pH values, lead to hydrogen yield reduction.

LI Heng, Zhan Mei, et al presented a finite element model of NC bending for the tubes with a large diameter and a small bending radius based on the analysis and experiments of bending process, and obtained the evolution of plastic deformation in the deforming process, including the change of strain/stress, instability and reduction of the tube wall thickness [5].
Table 1 Comparison of simulated and experimental results Bending angle (°) 36.3 92 112.5 Experimental spring-back angle (°) 1.55 2.03 2.35 Simulated spring-back angle (°) 1.46 2.22 2.37 Errors (%) 7.5 8.5 0.8 It is indicated in Table 1 that the finite element model proposed in this study can be used in predicting the spring-back angle very well within an average error of 9%, which is within acceptable range considering the effects of data acquisition in the experiment and other factors in practical application.

Any reduction in the stiffness of the implant, for example, through substitution of present orthopedic alloys with newer, lower modulus materials, is expected to enhance stress redistribution to the adjacent bone tissues, therefore minimizing stress shielding and eventually prolonging device lifetime.
Corrosion data show excellent resistance for titanium and its alloys though some precautions should be taken in order to optimize their composition [9]. β-titanium alloys generally show attractive corrosion behavior, their corrosion resistance again depending on alloy composition and environment.

It makes use of thermal energy to create an oxidation reduction reaction, the formula is below: 2Al+3CuO→Al2O3+3Cu The “exothermic welding” process is very short, but the heat generated is sufficient to enable the welding interconnection point to form permanent molecules.
As can be seen from the table 2, the galvanized steel has the maximal cross section, especially when considering side corrosion rate. 4.2 Relevant cost Following the latest data of Shanghai Futures Exchange and quoted price from suppliers, table 3 list grounding grid material cost in a 500kV substation.

Yang Xiao-min [4] found the reasons of the high energy consumption of the public buildings were the design of the air conditioning system, operations management and so on, base on the measured data and operational records of the air-conditioning system and other construction equipments.
Based on the suitable building energy-saving insulation systems, this paper tries to figure out a better energy saving design scheme, so as to maximize the reduction of operating energy consumption and realize the minimum operating energy consumption of the public building.