The mixing and transport of scalar fields in fluids are fundamental phenomena in nature and in engineering.  However, there have been various measures and models for quantifying mixing.  In recent years, signficant research efforts have been dedicated to the study of a mutiscale mixing measure related to Sobolev norms. It reviewed some common mixing measures, applied them and corresponding mathematical approaches to a test problem, and considered the optimal control problem for scalar mixing. Besides, it explored the possibility and advantanges of using multicale mixing norms as the unified mixing measure from both analytical and computational perspectives. The research shows that this will provide a theoretical and numerical research framework to evaluate, predict and control scalar mixing and transport in practical applications.

Following Cantor set and fuzzy set, extension set is another basic set put forward by Chinese scholars. It explored the degrees that research objects possessed certain characteristics and their transformations from transformable perspective. The degrees were weighed quantitatively by the use of dependent functions. Then, they were used to study changing classifications, classified changes and the transforming of contradictory problems.  The differentiation and affiliation of the three sets mentioned above were analyzed, and the recent research progress in the formation of elementary dependent functions in extension sets was introduced. The farther lucubrating for dependent functions in extension sets will have important scientific significance and applied values for  extension strategy generating system, extension data mining, extension control and extension detecting, etc.
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It proposes an extension model and core model, based on the generation method of extension strategies, using the extension theory to prevent talent drain of the enterprise. With the correlative analysis of the primitive, a variety of strategies were generated to solve the relevant issues through the extension transformation. The resulting strategies were evaluated with both cost and time  as the evaluation characteristics. The extension strategies generation system to prevent  talent drain of the enterprise was simulated, and the results were given.
Extenics；talent drain of the enterprise；extension strategy generation

The structure of expert system for error eliminating and avoiding is proposed in this paper. Based on the method of error matrix equation, how to establish the database, rule base and model of expert system for eliminating and avoiding error are discussed. The storage and reasoning in the expert system of error matrix equation are presented as well. At last, a reasoning case which is based on traffic management and error matrix equation are given.
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The effects of H2O2 mass concentration, Fe2+ mass concentration, pH value, microwave power and irradiation duration on pollutant removal were investigated during microwaveassisted Fenton oxidation. Chelated copper wastewater was treated by single microwave, single Fenton oxidation and microwaveassisted Fenton oxidation under the most favorable conditions. The mechanisms of microwaveenhanced Fenton oxidation were analyzed. The optimal operating conditions during microwaveFenton process are as follows: microwave power=680 W, irradiation time=10 min, dosage of Fenton was H2O2(30%)=130 mL/L, FeSO4·7H2O=5 g/L. Under these conditions, COD Cr  decreases from 14 750 mg/L to 1 327 mg/L, and Cu2+ decreases from 968 mg/L to 55 mg/L. Compared with those by means of the microwaveoxidation process, the removal rate of  COD Cr and Cu(II) decreased evidently both in single microwave and single Fenton oxidation.

Cell transplantation is a potential treatment for myocardial infarction in myocardial tissue engineering. The heart patch is not only the carrier of the seed cells, but it can also inhibit the expansion of the heart to facilitate the myocardial repair and regeneration. The development of the heart patch has become an interdisciplinary focus of basic and clinical medicine, materials science and biomechanics. It reviews the study of the heart patch in biomechanics, and proposes several points deserving further investigation in this field.

With the energy conservation as the clue, it reviewed some more complicated sand dilatancy equations, which are obtained through incorporating state parameter for homogeneous sand, and the state parameter and anisotropic state variable for transverse homogeneous sand, based on some simple version sand dilatancy equations such as Camclays, modified Camclays, and Rowes et al. It points out that initial fabric tensor and loadinginduced fabric tensor incorporated into sand dilatancy equation will be the main research aim in the future.

It introduces the design of a special crane bridge. Aiming at the problems with the crane bridges being put outside at high altitudes, having a large gyration radius, and suffering from big wind impact and heavy vibration, it presents the design of the bridge structure consisting of one main truss and four attached trusses with the crosssection like a set triangular and the trusses being welded by circular steel. A mechanical analysis and repeated experiments were done to raise the stiffness of the bridge, to lower the gravity center and to reduce the area covered by the wind of the bridge so as to make the vibration smaller so that it works smoothly with high safety performance.

It analyzed the causes of various diseases for asphalt concrete roads, low design standards, vehicle speed, cracks of temperature, reflective cracking, the grassroot conservation and management deficiencies through the project implementation of maintenance and reconstruction of south road in Taiyuan, Shanxi Province. Collapsible loess foundation in the northwest is a common engineering foundation. Then, it proposed some control measures such as improving the design standards and strengthening the quality control.

The human-body capacitor is an important parameter in electrostatic discharging model (ESD). In the tunnel environment, multiple electricmirror images of dielectric medium were employed, and the humanbody capacitors of the system were calculated, based on the uniqueness of electric field solutions. The capacitors’ dependence on humanbody, tunnel shape, the humanbody position in relation to the tunnel, and dielectric constant, was also investigated. The calculations show that the humanbody capacitor is very sensitive to the figure of the humanbody and the shape of the tunnel, but not closely related to the humanbody position in the tunnel. Furthermore, the humanbody capacitor depends on the dielectric constant of the environment and the capacitor maximum peak which is 115 times than that in free space appears at εr=7(the dielectric constant of dry coal is εr=63), which reveals the importance of electrostatic safety in the tunnels of mines.

Electric-field characteristics of composite insulators under polluted and wet conditions can effectively reduce the risk of composite insulator flashover. The surface thickness and uniformity of composite insulators were researched, and the simulation model for two-dimensional electric fields of 110 kV composite insulators was established via the software Comsol Multiphysics. The finite element method was applied to calculate the potential and field distribution for 110  kV under polluted and wet conditions. The research shows that the effect of uniform water is related with pollution layer conductivity, and that the umbrella group of the composite insulator near the high voltage supports higher voltage if pollution layer conductivity increases to 10-7S. When there are drops dripping on the surface of the composite insulator, the electric field intensity surrounding the drops grows rapidly.
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Campus buildings have different performance characteristics in air conditioning systems because of their building functions and using habits. The energy saving technology and environmental protection on the subtropical campus were discussed. The technology was applied to the air conditioning system on the new campus of a university in a southern city in China. The research shows that using different kinds of air conditioning equipments according to the appropriate function and scale of buildings has significant effects. On the other hand, the flow of fresh air and the volume of frozen water or cooling water are reasonably adjusted by the variable frequency technology according to the timeliness of buildingusing habits. Furthermore, some energy can be conserved through the relevant supplementary equipment for further use of heat.

Nb was applied to the cast high speed steel (HSS) cutter to refine the ascast structure. The structure and hardness at different solid solution temperatures and tempering temperatures were studied. The results show that with solid solution temperature ranging from 1 200 ℃ to 1 220 ℃, the carbide distributes homogeneously as isolated granular. While the temperature is lower than this range, the feathery carbide in the grain boundaries can not be fully dissolved, but while it is higher than this range, granular NbC starts to dissolve. Tempered at the temperatures ranging from 570 ℃ to 580 ℃, fine acicular martensite and least amount of residual austenite can be obtained. While the temperature is lower than this range, coarse martensite and more amount of residual austenite can be obtained.

A new method of solving the MoorPenrose inverse of a matrix with partitioned matrix is given, and the method can be realized only with the elementary transformation of matrix.

By a mapping the authors prove that for two vvalued algebroidal function W,M with 2v+1 Im sharing value, they share the same Borel point in unit disc.
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By using the indirect adaptive fuzzy control approach with supervisory control performance, the adaptive controllers are proposed for a class of uncertain MIMO nonlinear systems under the mathematic conditions where the gain matrices need not be nonsingular. The proposed adaptive controllers can ensure not only the all signals of closed-loop systems are bounded but also the tracking error converges to a small neighborhood of the origin. The simulation results verify the effectiveness of the approach.

A new twostep algorithm for underdetermined source separation is proposed. Mixing matrix was estimated via clustering methods based on potential functions. Sources were estimated by means of a fast sparse reconstructed algorithm. Every solution to the system equation A（st)=x(t)was expressed as the sum of one of its special solution and a group of linear combination of the basic solution to the corresponding homogeneous linear equation。The number of independent variable needed for estimation was reduced from n to n m. Blind source separation of signals was done by means of sparse representation. The new algorithm is easily implemented and runs fast, which can well meet the requirements of the blind separation for speed. Simulation experiments show that the proposed algorithm has very good separation efficiency and precision.
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Combining transformers with campus architecture is a new advertising method. It proposes a method of transforming an architecture model  into a robot, and introduces an approach of applying mainfeatures, motion path and key frame to deal with 3D model transformation. The library model was disassembled into parts which could be bound with bone skeletons of the transformer. By specifying the motion path and setting key frames, the animating process of transformation from a library building to a robot can be achieved. Vray rendering software and Adobe Premiere software were used to render aftereffect process. Finally, an animation video of library transformation was generated. Thus, a library transformer character that can make different poses was created.
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