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In this study, influences of mixing procedure on the latex adsorption behavior, slurry fluidity and setting time of latex modified cement paste (LMCP) mixed with polycarboxylate (PC) as superplasticizer were analyzed. There were three kinds of mixing procedure: LMCP added latex later than PC (LMCP-L), LMCP added latex before PC (LMCP-B), LMCP added latex and PC simultaneously (LMCP-S). The results show that, the adsorption isotherm of SAE latex by cement grains fits the Langmiur type, and the presence of PC can affect the adsorption behavior. Regardless of the mlatex/mcement (4% or10%), LMCP-B had the highest amount of adsorbed latex and slurry fluidity while LMCP-L had the lowest. And, the LMCP-B also had the longest initial and final setting times, while the setting times of LMCP-L and LMCP-S were comparable.

In this study,influences of latex and mixing procedure on flexural strength, compressive strength, elastic modulus and apparent fracture energy of hardened cement paste mixed with polycarboxylate (PC) as superplasticizer were analyzed. The results show that, the apparent density of fresh latex modified cement paste (LMCP) and the compressive strength of the hardened LMCP were reduced 1%-8% and 0-28% respectively compared with the control, while the flexural strength and apparent fracture energy were increased 11%-70% and 22%-157% respectively. In generally, the mixing procedure had gentle effect on the mechanical properties of harden LMCP with the same mp/mc, while the different mp/mc and latex types had greater impact. The amounts of polymer adsorbed changed by mixing procedure and had significantly effect on the properties fresh LMCP while very little on the harden LMCP.

To improve the preparation technology and mechanical properties of carbon/carbon composites, a kind of Zirconium dioxide modified Carbon/carbon (C/C–ZrO2) composites were prepared by Sol-Gel Process combined with isothermal chemical vapor infiltration (ICVI) method. This method could shorten preparation cycle greatly to reduce the cost. The microstructures and mechanical properties of the C/C–ZrO2 composites were investigated. The results indicate that the ZrO2 modified phase is uniformly distributed in the carbon matrix, the bending strength and modulus of C/C–ZrO2 composites are much higher than unmodified C/C composites due to its particle toughening and fiber toughening.

The factors that influence environmentally-friendly powder rubber powdering are introduced. Types and dosage of isolation agent, types and dosage of coagulant, environmental antioxidant, condensation temperature, stirring speed on the effect of powder rubber are examined. Thus a simple method to prepare environmental powder rubber is provided.As a physical variation of traditional bulk rubber, powder rubber can change the situations that high energy consumption and high labor intensity of the former. And it also can make the mixing process become continuous, automated, energy-saving and so on. In recent years, with the progress of rubber processing industry, the demand of powder rubber increases rapidly. And there is a intense requirement of supplying environmentally-friendly powder rubber[1-3]. So it is very important to do this experiment.

Microstructure and mechanical properties of automobile beam used BS700MC low carbon micro-alloy steel welding joint were investigated by cold crack sensitivity, microhardness test, bending, impact, tensile and metallographic analysis. The results showed that the BS700MC steel has better crack resistance, and without heat treatment before welding with the WH80-G welding wires. The microstructure of joint’s weld seam is acicular ferrite, very little bainite and proeutectoid ferrite. The hardness value of weld seam zone is 380 HV and is the same as that of base metal. But the lower of weld joints rigidity has obvious fluctuations, and the HAZ appears softened phenomenon. The welding joint has good impact toughness only between 20 and minus 20 degrees Celsius.The tensile strength of BS700MC welded joint reaches 815 MPa, 97.1% of base metal, fracture position in HAZ. Tensile fracture morphology is mixed type indicating dimple and cleavage steps, and welding joint have good comprehensive mechanical properties.

Adsorption of Ni (II) onto modified attapulgite was investigated with respect to temperature, initial concentration and contact time. The kinetics data related to the adsorption of nickel from aqueous solutions were in good agreement with the pseudo-second order equation in ranges of initial concentration of 20-200 mg/L, and temperature of 298-328K.The thermodynamic experiment results showed that the equilibrium adsorption isotherm was closely fitted with the Langmuir model. Enthalpy change (△H0), entropy change (△S0) and Gibbs free energy change (△G0) were calculated from the temperature dependent sorption data, and the results indicated that the sorption of Ni (II) on modified attapulgite was a spontaneous process, and the sorption was endothermic.

Adsorption of Cu(Ⅱ) onto natural attapulgite was investigated with respect to temperature, initial concentration and contact time. The adsorption process can be well described by the pseudo-second-order kinetic model, and the equilibrium adsorption isotherm was closely fitted with the Freundlich model. Enthalpy change(△H0), entropy change(△S0) and Gibbs free energy change(△G0) were calculated from the temperature dependent sorption data, and the results indicated that the sorption of Cu(Ⅱ) on attapulgite was a spontaneous process, and the sorption was endothermic.

Aiming at our country existing components database has some shortages, such as the data is not complete, scope of shortcoming, we develop a parts optimization library on the network based on the data of large number of parts. Firstly, expounds the overall structure of the database and research on system information technology. And then elaborate the main function modules of the system. Lastly, test the validity and practicability of the system combined with a specific example. After verification, the system can be very good to meet the needs of the enterprise to the type of resource demand.

The virtual simulation experiment framework consists of hardware and software function modules, which are both designed in this thesis. The application of virtual experiment framework has changed the traditional teaching method to a large extent, reduced the cost of laboratory construction and management, which is of the first importance to realize the remote experiment teaching. Through virtual experiments, students' interest in knowledge is cultivated and innovation ability is enhanced. With the National Instruments Educational Laboratory Virtual Instrumentation Suite (NI ELVIS) and LabVIEW, we could take advantage of graphical programming and a complete suite of standard test instruments on computer and directly interface these instruments to circuits, which is the base of virtual experiment framework.

The stability is a key index sign of servo system, Oscillation will make the electrical performance of antenna servo system becomes worse, serious when can cause structural damage. Stability is particularly important for the ship borneantenna.In this article we analyze the reason of the servo system surge from two level .and put forward some viewpoint of how to restrain the surge

Factor group analysis on the deformed pyrochlore-structure hydroxyl transition metal halidesM2(OH)3X(M= Co, Fe and Mn;X= Cl, Br and I) with the crystal symmetry ≡D3d5of space group No. 166 for their infrared (IR) and Raman spectroscopic studies are, for the fist time to the best of our knowledge, reported. Through a standard factor group analysis, we predict that there are 17 IR active normal modes (7A2u+ 10Eu) and 12 Raman active modes (5A1g+ 7Eg), caused by five atomic site groups [HOM3], [OM3], [MO4X2], [ClM3] and [MO6], where the black body letters represent the site atoms. In addition we figure out all the atomic displacement patterns of 12 Raman active normal modes, and point out these results are completely same as those of the famous geometric frustration material Herbertsmithite ZnCu3(OH)6Cl2.

Microphases and triangle phase diagrams of cyclic ABCB tetrablock copolymer melts have been investigated by a combinatorial screening algorithm based on self-consistent field theory (SCFT) in two-dimensional space. Eight main stable ordered morphologies have been observed in the intermediate-segregation regime. SCFT simulation experiments reveal that the compositions of block chain in the cyclic polymer are comparable, the cyclic architecture of polymer chain has a strong topological constraint on the geometry of microphases. The morphologies and phase diagrams are helpful to control and design the suitable ordered microstructure of cyclic copolymer systems.

The low temperature Raman spectroscopic (4000-95 cm–1) investigation on the hydroxyl cobalt chloride Co2(OH)3Cl and deuteroxyl cobalt chloride Co2(OD)3Cl polycrystalline samples has been performed from the room temperature down to 4 K closing to the liquid Helium temperature. Lineshapes of Raman modeEg(about 130 cm–1assigned to the normal symmetrically bending vibration mode of the [ClCo3] group for both kinds of samples) are found to be apparently asymmetric Fano lineshapes when the temperatures are below 230 K. This phenomenon is preliminarily attributed to the effect of electron-phonon coupling and a continuum of electronic states centered at about 16 meV with an upper limit 18.5 meV is suggested in this report.

In this paper, the liquid distributor performance for the falling film evaporation process was tested, and the relationship between the liquid height and flow rate were studied in the experiment. The results showed that the liquid height of liquid distributor is proportional to flow, liquid distributing hole diameter and flow, but inversely proportional to liquid distribution aperture. Overflow may be present at a high flow.

This article puts forward improved hill-climbing algorithm based on the problems that exist in wind power system compared with traditional hill-climbing searching MPPT control algorithm.In order to obtain optimum power curve,the improved algorithm finds the maximum power point when wind speed is steady firstly,then estimating torque loss accurately of motor to calculate system power loss indirectly when system is in the state of maximum power point.At last,the disturbance step is adjusted in real time based on distance between actual work point and optimum power curve.The improved hill-climbing algorithm does not exist the phenomenon that there is concussion near the maximum power point.What is more, the tracking direction could not be misled and tracking speed is sooner for tracking maximum power point when wind speed changes rapidly.By using Matlab for algorithm simulation,the result shows that improved hill-climbing algorithm could make up for the deficiency of traditional algorithm effectively.

To solve the problem about vehicles passing deceleration strip consumming a large amount of energy , it can improve the efficiency of the deceleration strip generating electricity by improving the existing mechanical power or gas-liquid pavement power transmission part,using the buffer device and conversion device to change the stress state of rack and pinion,combining the working characteristics of one-way clutch with bevel gear transmission characteristic.The result shows that the power generation device design is reasonable and the economical profit is remarkable.

Theresistance of slurry pipelinetransportation has greatly impact on slurry transportation system. In order toimprove transportation efficiency,energy utilization rate,taking theappropriate drag reduction technology has a very important significance.Thispaper presents drag reduction technologies for slurry transportationapplications,including micro-bubble drag reduction technology and vibrationdrag reduction technology.

An aryl benzyl ester dendritic axially substituted silicon (IV) phthalocyanine, a di-{3,5-di-(4-methoxycarbonyl group benzyloxy) benzyloxy) benzyloxy} axially substituted silicon (IV) phthalocyanine (DSiPc) was synthesized. Its structure was characterized by elemental analysis, 1H NMR, IR and ESI-MS. The photophysical property of DSiPc was studied by steady and time-resolved spectroscopic methods. The steric hindrance of dendritic structure can reduced the aggregation efficiently. The photoinduced intermolecular electron transfer between this novel macromolecule and benzoquinone was studied. The results showed that the fluorescence emission of this dendritic phthalocyanine could be quenched by BQ. Therefore, this novel dendritic phthalocyanine was an effective new electron donor and transmission complex could be used as a potential artificial photosynthesis system.

Al-5Ti-1C master alloy refiner was prepared by melt reaction method, and its refining efficiency was examined by purity aluminum in the paper. The microstructures under different process conditions were studied by OM, SEM and XRD. The results shown that the grains were finer, TiAl3 and TiC phases were uniformly distributed at 900¡æ, held time for 15min. The refining efficiency was best at addition of 0.4% (wt.%) refiner and held time for 10min.

The advantages and disadvantages of the conventional desalination methods were discussed. A four-effect desalination demonstration plant using waste heat from a diesel engine was designed. Not only the water yield but also the physical dimension of the distiller has been calculated under the operating condition. The analysis of energy consumption shows that the desalination system is low-cost.

Cloud computing mode under Internet environment construction is a new financial management information construction mode,The accounting issues of cloud computing based on derivative, through the research of cloud computing in the cloud computing platform, safety precautions in the cloud era, measurement and the ratio of income and cost of cloud cloud in cloud business model and how to make accounting voucher valid etc.To provide advice for the enterprise Accounting information construction of our country implementation of cloud computing service model, provides the countermeasure for cloud security issues, so that enterprises can better meet the arrival of the era of cloud.

The emergence of cloud computing provides a resource virtualization, software as a service, system transparent service mode for the information society development, application of cloud computing platform for online technology development to achieve resource sharing, online processing of accounting information, which brings a lot of convenience for the enterprise accounting. Cloud computing brings convenience to the accounting profession, but also derive many new accounting issues. Analysis by cloud computing derived on asset confirmation, income, cost and distinguish and confirm the proportion as well as the legal accounting vouchers and effectiveness of the problem, and put forward corresponding solutions to these problems.

It is very important to recycle and deal with them effectively for environment protection resources saving. In this paper, on the basis of relevant knowledge of classified recycling, we combine the situation of our surveying actually, establish electronic information platform which is suitable waste electronics. More important being, we design a recovery bins can be classified recycling battery. What’s more, according to the waste electronics recycling system, we put forward to increase the recovery rate and the better classified recycling.

In view of the fact that the complex control of car moving device, its small application range, the difficulty to reach the accurate location of vehicles and so on, therefor a new design and research for a car moving device of remote control is proposed; The Mecanum wheel is chosen to achieve the omnidirectional movement, so that the vehicle can reach the predetermined position quickly. The electro-hydraulic push rod is used to realize the automatic lifting ,and it is also convenient and efficient; In addition, AT89C52 microcontroller which cost less but can meet the requirements realize the control.

This paper aims at comprehensively considering the mutual coupling between available water resources and water consumption in (i) a regional social economy system; (ii) a macro-economy system; and (iii) an ecological environmental system. The main focus is to investigate the impact of controlling the total amount of ET and to be able to utilize water resources efficiently. An analytic model for multi-objective decision making of water demand management based on ET indicator is developed in order to research the strategies and corresponding water demand schemes that are relevant to future objectives for economic development, agricultural development, ET regulation and control, water engineering investment, and water environment management of Beijing. Various scenarios examined in the study indicate the validity of the proposed method in analyzing water demand administrative decisions.

Aiming to small and medium-size enterprise’s technical force weak and lack of research and development ability. We urgently need a new cooperation pattern to make up for the shortage. The paper put forward a kind of network collaborative development system. Based on the system requirements analysis, the paper researched system’s functional structure and operation mode. Finally, According to the system’s development instance, the paper proved its viability and practicability.

Based on the math model and comparative analysis, the change of hydrological regime and water quality in the Han River from the site of Baihe Hydropower Station to Gushan Hydropower Station caused by the dammed water of hydropower station and the regulation effect of reservoir is studied herein. The typical days in the wet season and the dry season in the dry year were selected as the study period in which the changes of hydrological regime and water quality after the construction of the reservoir were studied by comparative analysis. The results show that the project has some impact on the hydrological regime in the reservoir as the water level and the water depth would increase while the flow velocity would decrease after the construction of the reservoir. The water quality would be improved in different degree after the construction of the reservoir. For the sections which were near the dam, the degree of the water quality would be obviously improved.

Solar energy has been widely used in desalination systems. A low-temperature multi-effect desalination system driven by solar is constructed for a series of experimental studies. The results show that water production rate grows with solar radiation, and maintains at a high level between 12am to 4pm. The optimized heat water flow is 1400 kg/h and appropriate cooling water temperature is 24 °C, respectively.

A small indoor cooling system through cold water circulation is introduced in this paper. The system mainly includes cooling pool, cold water circulation equipment, indoor heat exchanger, temperature measurement equipment and induction controlling equipment. The indoor cooling is achieved by heat transfer between the natural underground water of lower temperature and indoor air of higher temperature, and it is different from the traditional compression refrigeration system in which a great amount of electric energy is consumed while the refrigerant is compressed. Compared with the ordinary air conditioning system, this system has obvious advantages on economy, application potential and energy conservation in rural developing areas.

Environment pollution may cause many negative impacts on human health. Among these impacts, human pay more and more attention to adverse pregnancy. This paper reviewed adverse pregnancy outcomes caused by environmental pollutants. The result showed that gaseous pollutants can cause preterm birth and intrauterine growth retardation. Organic pollutants may affect birth weight and neural tube development etc. Heavy metals of cadmium and lead not only affect birth weight, birth length, but also cause congenital malformations. The impact of particulate matter on pregnancy was rarely reported. Further research on the relationship between environmental pollutants and pregnancy will benefit our understanding on and prevention of adverse pregnancy.

Based on the model of rigid-spring element suitable for homogeneous elastic problem, which was developed by Japanese professor Kawai, the interface stress element model (ISEM) for solving the problem of discontinuous media mechanics has been established. Compared with the traditional finite element method (FEM), the ISEM is more accurate and applicable. But on the other hand, the total number of freedom degree of ISEM in dealing with three-dimensional problems is higher than that of FEM, which often brings about the negative effects on efficiency of calculation. Therefore, it is necessary to establish a mixed model by gathering the advantages of ISEM and FEM together. By making use of the good compatibility of ISEM and introducing the concept of transitional interface element, this paper combines the counting methods of ISEM and FEM, and proposes a mixed model of ISEM-FEM, which can solve, to a large extent, the contradictions between accuracy and efficiency of calculation. The examples prove the applicability and adaptability of this model to engineering.

This paper intends to reveal that materialism is how to influence the pro-environmental behavior in materialism, environmental beliefs and environmental concerns. A person who has materialistic tendency, his behavior is extremely harmful to the ecological environment. But environmental beliefs and environmental concerns are helpful to formation of the environment friendly behavior. The pro-environmental behaviors are classified into two kinds: one is cycle and substitution, which is the goods or services with low material and recyclable material for consumer choice; the other is to directly reduce material consumption or frugal consumption, which means reducing the consumption of non-necessities. With the help of establishing structural equation model of pro-environmental behavior and its influence factors, the relationship between factors and behavior is tested. The conclusions are as follows: Materialism impact on environmental beliefs and environmental concerns were significant negative; environmental beliefs on environmental concerns were significant positive; environmental concerns on the cycle and alternative behaviors were significant positive, but environmental concerns on frugal behaviors did not have a significant positive. As negative effects of the materialistic values and norms, the formation of Pro-environmental behaviors is difficult.

The similar structure of solution for the boundary value problem of second order linear homogeneous differential equation has been studied. Based on the analysis of the relationship between similar structure of solution, its kernel function, the equation and boundary conditions, similar constructive method (shortened as SCM) of solution is obtained. According to the SCM, the similar structure of solution and its kernel function are constructed for the mathematical model of homogeneous reservoir which considers the influence of bottom-hole storage and skin effect under the infinite outer boundary condition. The SCM is a new and innovative way to solve boundary value problem of differential equation and seepage flow theory, which is especially used in Petroleum Engineering.

This dual-ducted SUAV is a nonlinear and strong coupling of multiple-input and multiple-output system, and particularly between the pitch and roll channels channel coupling is strong, in order to implement effective control, it must be decoupled. The traditional methods are difficult to achieve effective control of the strong coupling of multivariable systems. Neural network which has a strong learning ability, is able to learn from the sample and can adapt to changing learning condition. Thus, the neural network can be used to simulate the learning process of operator, and operating characteristics information of objects can be excavated from the measured data, and accordingly change the parameters of the controller and decoupling network. This paper presents a attitude control algorithm of the dual-ducted SUAV which combine ADRC algorithms with neural network decoupling control algorithm, to design a SUAV decoupling controller. The simulation results showed that the attitude control channels between the pitch and roll were independently of each other, indicating a good solution to decouple the coupling between the pitch and roll channels based on neural network algorithm.

The sub-pixel allocation is a key technology for achieving high-precision measurement for micro electro mechanical system (MEMS). In this paper, a novel sub-pixel compensation algorithm based on an improved gradient algorithm utilized in a rough sub-pixel position is proposed to compensate the insufficient accuracy extracted by the surface fitting. And compared with traditional gradient used in the integer pixel, the proposed algorithm can reduce the error introduced by abandoning the higher order term without using iteration and second-order Taylor formula. The experimental results show that the displacement parameters calculated by the proposed algorithm is more accurate, and the method has a good noise resistance, it can meet high-precision positioning of MEMS motion image.

The corrosion resistance of slag α-Sialon ceramics, preparedviapressure-less sintering and hot-pressing from slag α-Sialon powder, to NaOH and HNO3was studied in this work. The result shows that slag α-Sialon ceramics have exellent corrosion resistance to NaOH and good resistance to HNO3. The corrosion mechanism and corrosion mode of acid and alkali to slag α-Sialon ceramics was investigated by means of scanning electron microscopy (SEM), and the results indicate that the corrosion of acid and alkali to hot-pressing ceramic is the slow surface corrosion, not only on the crystal grains, but also on the grain boundary phase, while the fast pitting is the dominant corrosion mode for pressure-less ceramic. The corrosion of NaOH solution to ceramics mainly occurred the grain boundary phase, while not only the grain boundary phase, but also crystal phase are corroded by HNO3.

Based on the theory of finite element and modal analysis theory, analysis of static and dynamic characteristics of the lathe bed has been done. The static displacement contours and mode natural frequency and displacement contours have been given to realize the structure optimization of lathe bed of high-speed horizontal machining center. It is shown that the bed has good static stiffness and natural frequency and the deformation of lathe bed mainly occurred in the tray conversion mechanism and the cutter location. The deformation of processing work area is small and has certain light weight space, which lay the foundation for the lightweight design of the bed.

Graphene nanosheets (GNSs) were prepared from flake natural graphite by oxidation, rapid expansion and ultrasonic treatment. The morphology, structure and electrochemical performance of GNSs as electrode materials for supercapacitors were systematically investigated via high-resolution transmission electron microscopy, X-ray diffraction, nitrogen adsorption and desorption isotherms and a variety of electrochemical testing techniques. The electrodes with freestanding GNSs prepared by coating method exhibited good rate capability and reversibility at high scan rates in electrochemical performances. GNS electrode with specific surface area of 243 m2 g1 maintained a stable specific capacitance of 200 F g1 under specific current of 0.1 A g1 for 500 cycles of charge/discharge.

Supercritical CO2extraction ofPlumula nelumbinisoil rich in γ-sitosterol was investigated with a 42full factorial design and response surface analysis. At optimal conditions (P=35 MPa,T=55 C,dp=0.22 mm,Q=2.0 L/min), the yield of the extracted oil was up to 12.2%, in which the concentration of γ-sitosterol was 7.38%, indicating that the γ-sitosterol contents inPlumula nelumbinisand its oil were much higher than that in other vegetables.

Against the background of the development of the smart grid, in order to promote the development of intelligent electricity in the residents side, developed a demand response based household electricity intelligent interactive terminal. The interactive terminal use configuration software as platform, combined with the existing peak-valley price and ladder price in Shanghai, consider of the real-time price mechanism and interruptible load mechanism of the demand response, cooperate with the intelligent socket which independently researched and developed, the intelligent interactive terminal is family oriented with information visualization, with a variety of control methods and easy to use. Through simulation and experiment, the terminal can achieve user-friendly, save energy, convenient supply company and user control, and improve the effect of users life habit.

On the basis of percolation mechanism for dual-porosity, an effective wellbore radius model in the dual-porosity was established, and the Laplace space solution could be obtained by solving this model. The solution had a similar structure and could be simplified into a unified expression in the different outer boundary conditions. The solution with a similar structure can avoid the complex calculations, it is beneficial to analyze the influence of various parameters on the solution in the dual-porosity model, and facilitate to master and use by engineering technicians.

In order to evaluate the reliability of existing bridges ,based on maximum value of the load and model of probability calculation of resistance attenuation, according to the data of the bridge which actually collected, and by using the ADINA finite element software to build the finite element model of considering the damage detection of beam bridge. The component and system failure criteria are determined on the basis of the bridge load-bearing characteristics.The Time-dependent reliability of the system by using the probability calculation model for assessing the maximum value of the load and resistance attenuation can be obtained. The result shows Changes in the process of reliability prediction of bridge , the correctness of reliability calculation model be verified; the correctness of the ADINA model be validated; Also confirmed the feasibility of prediction model; to obtain the main influencing factors of reliability of existing bridges.

The clean and renewable distributed generations (DGs) could be combined in microgrid. Keeping microgrid bus voltage stable is very important. This paper proposes an integrated control strategy of combining droop control and V/f control. A complementary wind-solar-energy storage microgrid model is built based-on Simulink software. The effect on voltage stability based on the integrated control strategy is analyzed.

The matrix representation of space point group is used in transferring the elastic matrix of the braided yarn based on the symmetries of braided composites representative volume element (RVE) meso-geometrical structure. The off-axis elastic matrixes of the whole braided yarns of the RVE are deduced. With a use of meso-mechanical model based on the mixture rule, the yarn segments off-axis elastic matrixes in the RVE and matrixs one are summed with weight; Equivalent elastic matrix of 3D braided composites was deduced. Equivalent engineering elastic constants are achieved in the end. The model can be applied in 2D braided composites mechanical analysis if its geometry is satisfied to the symmetries corresponding to plain point group.

With the medium of triethanolamine acetate ionic liquids and the help of cavitation effect of ultrasonic resonance, the TiO2 collosol is prepared by the sol-gel method and being loaded on nickel foam. The TiO2 electrodes are formed by calcinating at the high temperature. The results show that the optimal electrodes can be obtained with the medium of triethanolamine acetate ionic liquids, under the condition of high power ultrasound resonance for 15 minutes, the ionic liquid volume of 3 mL and the calcination temperature of 400 °C. After the wastewater is processed by photoelectric catalysis under the conditions of electrolysis voltage of 12V, electrode spacing of 1 cm, wastewater pH of 4 and illumination time of 90 minutes, the COD removal rate can reach 63.5%, while the decolorization rate can reach 93.6%.

Many quantum optical and optoelectronic achievements have been obtained by using quantum coherence effects occurred in four-level quantum systems. Here we report a systemic study on the 1st, 2nd and 3rd order subschemes of the four-level scheme with the aid of Boolean algebra, and find 7 1st order subschemes and 53 2nd order subschemes in total. Further it is found that 472 3rd-order subschemes may appear in the realistic optical quantum coherence experiments when the applied lasers are distinguished only by the strong and weak field intensities.

Design a high-precision real-time high-speed sampling fiber grating demodulation signal system based on a USB2.0 interface and FPGA; system hardware design and software design are introduced in detail. It is proved that has a good reliability and stability by the experiment. So this design has a strong value in use.

Directional pattern is a clear visual representation form of antenna radiation characteristics. Taking a certain kind of shipborne radar as example, the basic principle of the directional pattern measurement was analyzed, the basic methods and execution scheme were introduced in detail. A directional pattern automatic testing system which was based on Lavbiew was researched on the basis of existed testing techniques, and finally the directional pattern automatic measurement was realized through the use of virtual instrument GPIB and serial interface techniques.

In this paper, synchronization in drive-response dynamical networks is investigated. By using the Gerschgorins disk theorem and the stability theory, a nonlinear controller is designed to make the drive-response dynamical networks synchronized. Some sufficient conditions for achieving the synchronization of the drive-response dynamical networks are derived. The structure of the network can be random, regular, small-world, or scale-free. A numerical example is given to demonstrate the validity of the proposed method, in which the famous Lorenz system is chosen as the nodes of the network. Simulation results have verified the correctness and effectiveness of the proposed scheme. Moreover, it is worth noting that the time used for achieving synchronization of the drive-response dynamical networks sensitively depends on the coupling strength .