It proposes an approach for constructing and generating grid multiwing piecewiselinear hyperchaotic systems via sign function switching and superheteroclinic loop. Take the Lorenz system for example. The related system was linearized at its equilibrium points, and a linear feedback controller  was introduced. According to sign function switching control, the superheteroclinic loop connecting the equilibrium points was found. By shifting transformation, grid multiwing hyperchaotic Lorenz attractors were then formed. The theoretical analysis and numerical simulation have demonstrated the feasibility and effectiveness of this method.

It studies a system of two coupled cavities, one containing a twolevel quantum dot and the other containing a threelevel tunneling quantum dot molecule. The state vector of the system was derived under the assumption of resonant interaction and the initial conditions that the quantum dot was in the excited state, the quantum dot molecule in the ground state, and the cavity fields were in a vacuum. The dotmolecule entanglement, cavitycavity entanglement, dotcavity entanglement and moleculecavity entanglement were discussed. The influence of coupling coefficeint between cavities and tunneling strength of the quantum molecule on entanglement properties was explored with Negativity used to measure the entanglement between subsystems. Numerical results show that, compared with the weak cavitycoupling case, strong cavity coupling makes the entanglement between the quantum dot (or the tunneling quantum dot molecule) and the corresponding cavity field, and that between the fields reduce, while entanglement between the quantum dot atom and the tunneling quantum dot molecule increases. On the other hand, for either weak or strong coupling between the cavities, with quantum dot molecule tunneling strength increasing, entanglement between the quantum dot (or molecule), and that between fields are slightly affected; only entanglement between the molecule and its cavity field is obviously reduced.

With information explosion on the Internet, there exist such problems as difficulty in getting the right information and quite limited management of web contents. Based on the ideas of Uniform Content Label (UCL) and metasynthesis advanced by scientists, such as Li Youping from Chinese Academy of Engineering, it presents a series of implementation solutions to express UCL, based on the basicelement theory of Extenics, and to store them in XML. Then, methods and procedures were discussed to build UCL for the next generation Internet by the basicelement theory of Extenics. Finally, some research directions were given, such as integration of UCL into Extenics for the applications on the Internet in the future.

It proposes the use of related knowledge of HowNet, combined with the word segmentation, word correlation computing to solve the problems with extension definition of contradiction and ambiguity of semantic modeling of the strategy generating system, tries to improve computer language to express the user information accuracy and the extension strategy generating system and to increase the success rate. Experimental results show that the comprehensive application of HowNet and the extension strategy generating system makes it possible to improve the accuracy and efficiency of the extension strategy generating system in resolving contradictions.

One of the most important goals of the development of lithium ion battery is to get cathode materials with high capacity，and silicon materials with up to 4 200 mAh/g theoretical specific capacity have attracted researchers interest. However, the volume effects of silicon anode materials result in the rapid decline in the electrochemical cycling performance and limit its application in production. It researched Si and graphite doped through different proportions, with the method of highenergy ball milling and annealing. The results show that at the ratio of 2:1,the first specific discharge capacity can reach 2136.4 mAh/g. The capacity decays more slowly when silicon is doped with graphite, and 85.3% capacity is retained after 35 cycles. The silicon and graphite hybrid material presents a promising direction,and plays an important role in the production and application for anode materials for lithium ion batteries.

It  discusses the problem of linear quadratic nonzerosum games for stochastic singular systems with state and controldependent noise in finitetime horizon. Based on the result of the optimal control problem for stochastic singular systems, the existence of the nonzerosum strategy is presented by means of a set of crosscoupled Riccati differential equations.

There exists error accumulation in the multiclassification method, based on support vector machines and decision trees. It tends to decrease classification accuracy and results in a bad classification. With a careful analysis of error accumulation, it proposes a new multiclassification method, based on Huffman Tree and SVM. It divided a multiclassification problem into multiple binary classification problems, and gave classification priority, depending on the dissimilarity. At last, through an experiment with Lecast open source data sets, it verified the effectiveness. The experimental results show that the new method is superior to the traditional multiclassification method in classification speed and classification accuracy. 

Aiming at the problems of the traditional text to speech (TTS) systems, such as poor realtime character, high utilization of hardware resources, low efficiency of highcapacity speech data processing, it proposes the use of the SmartFusion FPGA (Field Programmable Gate Array) as the platform of hardware development. A TTS system was designed, based on FPGA. Firstly, the FatFs file system was transplanted to the CortexM3 hardcore of FPGA with the chip integrated. Then, hardware and software were made to work cooperatively, CortexM3 hardcore and FatFs file system were responsible for finding voice files and doing software analysis, and FPGA hardware was used to read the text contents and play the voice. Experimental results show that the TTS system has higher efficiency of processing voice files, shorter time of TTS conversion, and clear and fluent playback of the voice. The TTS system is stable and easy to implement.

It analyzed the embedded speech recognition technology and introduced the principles of smart home control. A speakerindependent isolatedword recognition system, based on smart home control, was designed. This speech recognition system, taking ARM11 processor and WM9713 audio processing chips as its core, was run on the WinCE operating system. The test results demonstrate that this system has better performance, realtime and implementation simplicity. This system provides a convenient and accurate design for smart home control, so it has broad marketplace prospects.

In order to reduce the time of speech recognition and the consumption of system resources, it proposed a method of speech recognition by grouping according to the speakerindependent, isolated words and large vocabularies. The method was based on Kmeans clustering, and the characteristics of the group were inspected by the confidence in order to make the group stable and ensure that the rate of recognition does not fall after grouping. The experiment results verify the effectiveness of this method.

The enamelling machine oven system is complex, and the effect of the traditional control method is not good.Based on a conventional PID controller，it used the fuzzy control theory, combined with the PID algorithm, to achieve the parameter selfsetting and to solve the problem with the uncertainty of the conventional PID parameters. ZieglerNichols was applied to determine the initial value of PID controller parameters.Then,the fuzzy control theory was employed to revise PID controller parameters, and the PID controller parameters meeting the requirements were obtained. The design controller was simulated in the Matlab environment. The results show that the parameter selfsetting fuzzy PID controller has better controlling effect than a conventional PID controller, and it can also reduce the cost to save energy and improve the economic benefits. 

A multiobjective evolutionary algorithm for hybridization and mutation in key areas is proposed. The proposed algorithm can effectively reduce the length and the complexity of coding when chromosome is in hybridization and mutation, which significantly improves the performance of the multiobjective evolutionary algorithm for 4G radio network model. After the hybridization and mutation, the nonkey area was searched again according to the constraint conditions. Then, the candidate base station(BS) was activated, which maximally covered the uncovered test points in nonkey areas until the coverage of all the activated BS satisfied the coverage constraint of the model by such analogy. In this way, all the generated solutions were efficient. Moreover, as many test points as possible were covered under the conditions that the activated BS was as little as possible. Finally, a group of optimal solution set was obtained by using the minimax methods. Simulation results have shown the effectiveness of the proposed algorithm.

A class of fourthorder BVP was studied as follows, 
〖WTBX〗〖JZ〗〖JB({〗u(4)(t)=〖QX(Y15〗SymbollAp〖QX)〗a(t)f(t,u(t),u″(t)),0<t<1,
u(0)=u(1)=0,u″(0)=u″(1)=0.〖JB)〗 〖WTBZ〗
By using the method of the upper and lower solutions and the fixed point theorem, some sufficient conditions of the existence of upper BVP were achieved. 

Atmospheric delay is one of the most significant errors in InSAR. However， efficient methods have not been found to correct such artifact yet. Weather models have been widely used to correct InSAR atmospheric delay errors in recent years, but more tests are required to demonstrate the efficiency of this method. The ECMWF model was used to correct InSAR atmospheric delay errors in central Tibet. The results indicate that only 3 out of 8 interferograms have been improved with smaller variance after correction, and the average variance is even bigger than that before correction. It means that with the ECMWF model, reliable improvements cannot be made in our study area. Considering that there is no reliable approach to test when and where the ECMWF model can improve the quality of InSAR data,  it is suggested that the users should be more careful about using this model for InSAR correction. 

A 3D numerical simulation of wind field around a convention centre in Zhongshan was conducted with the SST turbulence model on the basis of ANSYSCFX13.0，and the results of the simulation were analyzed with the program compiled by ourselves. The results show that the wind field and pressure distribution of the surfaces are influenced by the  buildings around the convention centre, and the wind pressure distribution and shape coefficients on the building surfaces are in good agreement with the law of flow around a bluff body. The results of the wind vibration factor are got by the simplified method and the Japanese standards, and the Japanese standards are supposed to be used to obtain the results.

It is of great significance for the reactive power optimization algorithm to improve the security and stability of the power system. To avoid the disadvantages of the traditional particle swarm optimization algorithm, prematurity and local convergence,  while optimizing largescale, strong nonlinear reactive power, the logistic chaotic map, for its advanced searching ability, was applied in the optimization variable process of this algorithm. Besides, a chaotic sequence combining Chebyshev chaotic map with logistic chaotic map was applied to obtain a uniform initial value so as to improve the global optimization ability of the algorithm. As to the problem of inertia weight, the algorithm gave a dynamic inertia weight, based on population velocity. The results show that it performs better in global searching ability and efficiency.

A novel microstrip patch antenna with a crossslot cut in the patch is proposed and studied. The research results show that, compared with general microstrip antennas of satellite navigation, the new antenna with much wider band and smaller size has outstanding advantages,. The new patch antenna with a crossslot cut in the patch was applied to the design of dual band navigation antenna for highprecision GNSS applications, and the impedance bandwidth and axial ratio bandwidth were effectively enhanced. The designed antenna had enough bandwidth to cover the all band of Global Navigation Satellite System (GNSS). Good performance of impedance, axial ratio, gain and phase center stability were obtained by simulation of HFSS. Simulation results show that the antenna has good circular polarization performance, and it is compact as well, so it is especially suitable for handheld highprecision navigation terminals and is promising in application.

It proposes a compact internal multiband antenna with a simple structure for GSM850/GSM900/DCS1800/PCS1900/UMTS2100/LTE 2.3 GHz/WiMax 2.5 GHz/LTE 2.6 GHz multiple mobile operations. The whole structure of the proposed antenna consists of the double strip planar radiation with a single feed and the printed circuit board (PCB) with a proper rectangular slot. The short one of the double strips resonated at 2 600 MHz, while the other resonated at 900 MHz. By the combination of the two strips, they resonated at 1 900 MHz. The slot on PCB could extend the length of the current distribution on the ground of PCB. The size of the total structure of the proposed antenna is 115 mm×60 mm×6 mm; meanwhile, the area left for the antenna is 60 mm×15 mm×6 mm. The simple compact structure makes the design very suitable for the mobile phone. The design and optimizing of the performance of the proposed antenna were performed by using the simulator software Ansoft HFSS. An actual model has been prototyped for testing. Measurement and simulation results are in good agreement, thus indicating that the proposed antenna can meet the actual demands.

Based on the theory of multibody dynamics system, an accurate model for a sports utility vehicle Sedan’s double wishbone independent front suspension is established. The changing rule of the suspension positional parameters with the wheel travel are analyzed. Besides, to improve the vehicle handling stability, it analyzed the sensibility of the suspension hardpoints with the changing of the suspension positional parameters, and optimized some hardpoints of the suspension. As a result, compared with the experimental data of the target vehicle, the performance of the automobile suspension was improved. Finally, as a kind of reference for suspension design, some general regular patterns about the effects of suspension stick arrangement on the properties of double wishbone front suspension were summarized.

Since its inception, Chinese Students Formula competition has attracted more than 50 colleges and universities, which has greatly enhanced the designing and manufacturing capabilities of the students in the schools. In order to shorten the designing time of formula SAE racing cars and to design the compliant model quickly and efficiently, the dynamic simulation on software ADAMS was used to establish a Chinese university students formula SAE (FSAE) vehicle model, and the handling stability of the car was simulated and analyzed. The main points and process of the establishment of multibody dynamics model in the ADAMS were introduced, and the accuracy of the model was verified by comparing it with the actual results in the competition. By testing and simulating the handing stability of the virtual prototype, the score was evaluated with the combination of the standard QC/T4801999. The experimental results show that this design meets the designing requirements because the formula racing car model has the obvious characteristic of under steering.

According to the specific requirements of a marine airbag at one construction site, an air pressure monitoring system of airbags was designed and developed, based on Visual C#，which monitored the air pressure of airbags. The system can detect, display and save the pressure data, and it can also set off the alarm when the air pressure is abnormal, so the safety of the construction is improved.

The thermostatic valve was equipped with the spring made of CuAlNi shape memory alloy as the part for sensing and controlling the temperature. For the forming process, the CuAlNi wire was transformed into a SMA spring, whose phasetransition temperature and recovery force were tested. The experimental results of the thermostatic valve show that, with the temperature of in water ranging from 50 ℃ to 70 ℃, the temperatures of the outlet water at different spool positions are 38.50 ℃ and 38.75 ℃ respectively, and that the thermostatic valve is reliable in controlling the temperature with the margin of error being 1.50 ℃. 

SrBi2Ta2O9(SBT)/LaNiO3 (LNO) heterostructure thin films were grown on Si(100) substrate by using a solgel process. XRD results reveal high (115) orientation of SrBi2Ta2O9 thin film. The hysteresis loops and leakage current density of the films annealed at different temperatures were measured. The film annealed at 700 ℃ showes the lowest leakage current density and a well saturated PE hysteresis loop with the largest remnant polarization (Pr) of 716 uC/cm2. Leakage mechanism analysis suggests an Ohmic conduction. In addition, the SBT/LNO heterostructures annealed at 700 ℃ exhibit a weak roomtemperature ferromagnetic behavior.

Yellowwhite long afterglow phosphors Ba3xP4O13:xEu2+were synthesized through a traditional solid state reaction at a low temperature(1 173 K) in the atmosphere of air. The crystal structure, luminescent properties, afterglow decay properties, thermoluminescence, thermal stability and selfreduction mechanism of Eu2+ ions were studied. The results show that: under the excitation of UV/near UV source, the samples show a broad band peaking at 545 nm, which should be attributed to 5d4f transition of Eu2+ ion, and the samples give off yellow light. At room temperature, the samples display yellow long afterglow after the excitation of UV source with a wavelength of 254 nm, and the lifetime of afterglow seen with naked eyes is more than 30 min. The depth of trap level in this phosphor could be calculated through thermoluminescence analysis, 067 eV approximately. Meanwhile the thermal stability of samples were also tested, and the thermal activation energy was about 031 eV. Besides, Eu3+ ions could be reduced to bivalent ones in the atmosphere of air because abundant PO4 tetrahedra exist in the crystal structure of Ba3P4O13.

Three kinds of porous matrixNa2HPO4〖KG-*3〗·〖KG-*3〗12H2O composite materials were prepared by the molten phase change material Na2HPO4〖KG-*3〗·〖KG-*3〗12H2O which was  infiltrated  into the porous material carbon sponge, foam nickel,  foam copper. Composite phase change materials were melted at 55 ℃ in a constant temperature water bath, and then cooled at 20 ℃ in room air. A number of cycle tests were conducted. Temperature data logger acquisition was used to collect temperature change data of composite phase change materials when the phase change materials were melted and cooled. Then, phase change material melting temperature and phase transition undercooking were measured, using scanning electron microscopy to observe the structure and morphology of composite phase change materials.The experimental results show that though a porous material has almost no effect on the melting temperature of the phase change material, it can reduce the undercooking of Na2HPO4〖KG-*3〗·〖KG-*3〗12H2O and shorten the melting start of the phase change material and the melting process. 

With the falconoids extraction rate as index, total flavonoids from Mikania Micrantha leaves were extracted by the ultrasonic assistance method，and the extraction process was optimized by the orthogonal design．Moreover, the in vitro antibacterial activity (inhibition zone diameter) and minimum inhibitory concentration (MIC) of the above product against Staphyloccocus aureus, Escherichia coli, Salmonella and Shigella were identified by the diffusion method and test tube method respectively．The results show that the optimum extracting conditions are as follows: ethanol concentration is 50%,  the ratio of material to 1iquid 1∶〖KG-*2〗30, ultrasonic power 50 W, and time 50 min, and the extracting rate of leaves is 1062 %. Under 〖JP2〗such conditions, the above extract of flavonoids has good antibacterial activities against Staphyloccocus aureus, Escherichia coli, Salmonella and Shigella, and the MIC is 1.562 5, 1.562 5, 3.125 0, 3.125 0 mg/mL respectively (calculated through the flavonoid quality concentration).