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In order to study the explosive welding experimental fabrication technology of multi-layer dissimilar metal plates and the quality of bonding interface, three-layer steel/aluminum/steel composite plates with different thickness distributions were fabricated using the method of explosive welding when their total thicknesses remained same (total 5 mm). Then the stereomicroscope was adopted to investigate the shape of bonding interface and the formed mechanism was also analyzed. In addition, the micro-hardness (Vickers hardness, Hv) distribution of the composite plate in the thickness direction was studied by a low load Vickers hardness tester. The results show that the method of explosive welding can be used to fabricate three-layer steel/aluminum/steel dissimilar metal plates successfully. Meanwhile, wave bonding interface was formed between steel fly plate and aluminum middle plate, straight bonding interface was formed between aluminum middle plate and steel base plate. The maximum Hv value of welded plate appears at the bonding interface with high bonding strength. The bonding strength of both two kinds of welded interface was considered sufficient, which offers experimental support for the explosive welding of multi-layer plates.

By simulation with the relativistic PIC code EPOCH, it is found that a hollow target ismore beneficial than a plane one for the collimation and compression of the positrons. Irradiating anultra-intense laser (4×1023 W/cm2) on a hollow target, 8.74×1015 positrons are generated. Due tothe focusing effect of the transverse electric field formed in the hollow wall, the divergence angle isaround 21° , while the maximum density of the beam is 4.77×1021 cm-3. When the laser intensity is doubled, both the yield (5.31 ×1016) and the maximum density (1.57 ×1022 cm-3) are greatly increased while the beam divergence gets even smaller (15.7 °).

The stereomicroscope, microscopic metallograph and scanning electron microscope (SEM) were adopted to investigate the fracture mechanism of two-layer steel/aluminum composite plates impacted by spherical fragment. The composite plates with the same total thickness (5mm) were fabricated by the method of explosive welding. In ballistic experiment, the spherical fragments were launched by a 14.5mm slip chamber gun to penetrate the composite plate. The effect of the combination state of the interface on the fracture mechanism was analyzed based on the experimental results. The results show that the fracture mechanism of the steel front plate is shearing and plugging and that of aluminum rear plate is ductile prolonging deformation when the tied interface failed by tension (or shearing and plugging when the interface combination remained connected).A narrow adiabatic shear band was formed in the local yield plate damaged by shearing and plugging during the penetration process.

The atom occupied sites, structures, tetragonal transformation and magnetic properties are studied by the first principles calculations. From least energy principle, the calculated equilibrium lattice parameter is 6.03 Å and 6.00 Å for Cu2MnAl type Ni2YIn (Y=Fe, Co) alloys, respectively. The Ni2YIn (Y=Fe, Co) alloys show steady martensitic phases at c/a=1.29 and c/a=1.36 based on the EBP’s method. Ni atoms and Y (Y=Fe, Co) contribute to the total magnetic moments, and keep parallel aligned in martensitic and austenitic phases. The Ni2YIn (Y=Fe, Co) alloys are the candidates for Ferromagnetic Shape Memory Alloys.

Two waterborne polyurethane latexes with different tensile strength were employed to modify mortar and the properties of mortar including air entrainment, setting behavior, compressive and flexural strength were investigated. The results show that curing methods, polymer-cement ratio and water-cement ratio have a significant impact on the compressive and flexural strength. The strength of mortar increased under dry curing condition in the range of the polymer-cement ratio from 0.005 to 0.05 (by weight) at water-cement ratio of 0.5. The hydration of the cement containing waterborne polyurethane latexes was not affected and no visible film was found in SEM images.

In this study, effects of polymer-cement (P/C) ratio, glass transition temperature (Tg); amounts of functional monomers (acrylic acid, hydroxypropyl methacrylate, ammonium polyacrylate, diacetone acrylamide) on properties of polymer cement mortar were investigated. According of the tensile test, breaking elongation (ε) and the tensile strength (δ) of polymer latex-cement composites with low P/C ratio were mainly depended on Tg, differential Tg value between layer and shell in acrylic latex (ΔTg) and the amounts of functional monomer. Additionally, at a low P/C ratio, it was found that the cross-linking rate had small effect of tensile property. It was determined that the waterproofing coatings III with a low P/C (0.12) showed the excellent tensile property when the Tg and the ΔTg of the acrylic latex were controlled at -24°Cand -20°C, respectively.

The structure of inertial-type counter flow screen is presented in this paper. It can be proved that the solid wastes with different friction factors and elasticity coefficients can be well separated by inertial-type counter flow screen. The more difference they have in friction factors and elasticity coefficients, the better sorting performance can be achieved. The selection and calculation on the dynamical parameters of inertial-type counter flow screen is carried out. The study provides the theory basis for the design on new-type friction separation equipment and develops new prospects for the application of inertial-type counter flow screen.

With the increasing of plastic consumption, the recycling of plastic waste has become an important problem with huge environmental impact. In order to analyze the environmental impact of plastic waste recycling, this study presents a systematic evaluation framework for plastic waste’s recycling process in China. Based on the framework, theoretical analysis and experimental research are made to evaluate the relationship of scale volume and environmental impact of plastic waste recycling. Cost and energy consumption of typical processing of plastic wastes have been calculated. And an optimization research is made to reduce the environmental impact, and increase recycling output efficiency for enterprise and local region.

Lithium-ion battery (LIB) is significantly changing the landscape of human life. The feasibility of recycling and disposal of spent LIBs was proposed based on the study of their forecasted demand and distribution characteristics in China. The yearly processing capacity of recycling and disposal facilities of spent LIBs on a nationwide scale were estimated to be at least 50 kilotons. The recycling and disposal facilities should be established in the southeastern coast areas of China, which generated high-density spent LIBs. Beijing was chosen as a city case study to discuss the demand forecasting and present one detailed construction planning of spent LIBs recycling. The obtained thoughts and results can contribute to the recycling and disposal facilities of other Chinese megacities.

The structural characteristics and the working principle of inertial rotary vibrating screen are introduced in this paper. The inertial rotary vibrating screen is a kind of high efficient equipment for the screening classification of dry and wet fine materials. It has the features of simple and compact structure, convenient installation and disassembly, stable work operation, no sieve pore blocking, high screening efficiency, and the whole machine closure without polluting environment. The nonlinear vibration equations of inertial rotary vibrating screen are established, considering the nonlinear forces of materials. An approximate solution and the material combination coefficient and drag coefficient for the vibration equations are solved by equivalent linearization method of nonlinear theory. A calculation example is also given in this paper.

A new algorithm is proposed for tracking a maneuvering target in clutter using heterogeneous sensors, such as active and passive sensors, which are carried on single moving airborne platform and report their observations asynchronously. The algorithm combining interacting multiple model (IMM) with probabilistic data association filter (PDAF) is sequentially implemented to cope with asynchronous reports. In addition, in order to close to practice, the algorithm is based on Earth-centered Earth-fixed (ECEF) coordinate system while it considers the effect of the platform’s attitude. So the algorithm extends previous algorithms from synchronous case to asynchronous case, from fixed station to moving airborne platform, and from local Cartesian coordinates to general ECEF coordinates. The simulation results show that the proposed algorithm has a broader and more practical scope while being slightly worse than existing algorithm which only be applied under synchronous case.

Pillared layered MCM-36 zeolite was synthesized from pure MCM-22 precursor with polymeric silica as pillaring agent. Characterization results of acidic properties from FT-IR indicate a decrease in the amounts of Lewis acidic and Brønsted acidic. The catalytic behavior of pillared layered MCM-36 zeolite in benzene alkylation with propylene was studied. It was found that pillared MCM-36 zeolite shows stable catalytic activity in a 200h time-on-stream measurement under a relatively high propylene velocity space. The excellent selectivity to cumene over MCM-36 should be mainly due to the decrease in the amount of Brønsted acidity, while the improvement of the catalytic activity of MCM-36 can be mainly assigned to the presence of a larger amount of structurally accessible acid sites caused by the increment of mesoporous volume in this material.

In order to solve the safety problem of disassembling the grounding wire temporarily for line maintenance and prevent an anthropogenic short-circuit accident from happening, this paper firstly proposes two safe and convenient detection methods based on directly signal injecting and induced voltage. Then, adopt the power system simulation software PSCAD/EMTDC to build model, some important factors affecting the effect of detecting are studied, which include frequency of signal, no-load transformer, magnetic induced voltage, joint use on the same tower, etc. Finally, a temporary ground wire detection device is developed which is based on the detection methods proposed and also based on modern power electronics technology and signal processing technology, and the field test verify the feasibility and practicability. The developed detection device has some advantages, such as safe-testing, simple structure and operation, easy promotion and so on.

Although the Gaussian mixture probability hypothesis density (GMPHD) filter is a multi-target tracker that can alleviate the computational intractability of the optimal multi-target Bayes filter and its computational complex is lower than that of sequential Monte Carlo probability hypothesis density (SMCPHD), its computational burden can be reduced further. In the standard GMPHD filter, each observation should be matched with each component when the PHD is updated. In practice, time cost of evaluating many unlikely measurements-to-components parings is wasteful, because their contribution is very limited. As a result, a substantial reduction in complexity could be obtained by directly setting relative value associated with these parings. A fast GMPHD algorithm is proposed in the paper based on gating strategy. Simulation results show that the fast GMPHD can save computational time by 60%~70% without any degradation in performance compared with standard GMPHD.

A power quality on-line monitoring device based on two CPUS is designed and implemented in this paper, which separated the data analysis from the peripheral control completely, used CPLD (Complex Programmable Logic Device) to generate control timing of peripheral devices, made full use of the DSP, so as to meet the requirements of power quality: monitoring precision and real time. The paper firstly introduces the monitor's sampling circuit, communication module circuit, storage module circuit and the flow chart of software. Then, the functions, features and designations of each module are described in detail.

For a long time, reliability plays an extremely important role in electrical automation control equipment. To improve electrical automation control equipment’s reliability, the job should be promoted to a strategic height so as to assume and effectively control the factors affecting the reliability of the equipment, thus ensure the accuracy of reliability test. This paper, based on this, first is to implement the reliability influence factors analysis, and then introduces the main testing methods. By contrast, it finally comes to the conclusion that this article can provide certain reference for the research of related topics.

Magnesium wrought alloys are of special interest for structural components owing to their improved microstructures and mechanical properties by comparison with Mg cast parts. However, the market of Mg wrought alloys is still relatively small and one of the most important limitations for their application in areas such as aviation and spaceflight is that their strength is still not high enough to be widely used. Currently, more and more attention are paid to hydrostatic extrusion of Mg alloys because the extruded Mg alloys which exhibit extremely fine grains and high strength can be easily obtained by hydrostatic extrusion process. This review detailed the microstructures and mechanical properties of various wrought Mg alloys subjected to hydrostatic extrusion. Furthermore, numerical simulations and processing parameters optimization of the hydrostatic extrusion were also discussed. Finally, the current problems and development trends of hydrostatic extrusion of high-strength Mg alloys were also put forward.

In this paper, the structure, the characteristics and the working principle of vibrating cone crusher with dual exciters were introduced. The hysteretic features of material layers were analyzed. The hysteretic force model with bidirectional symmetrical clearances for the material layer was presented. The mechanical model of two-degree of freedom with bilinear hysteresis and the nonlinear vibration equations of the system were proposed. The equivalent damping and stiffness coefficients of the vibrating system were calculated by asymptotic method. The displacement responses of the system were computed by numerical method and asymptotic method. The results showed that the system responses obtained by an approximate analytical solution were basically identical with the numerical simulation results of the original system.

This paper presents an intelligent method of optimized control of DC voltage based on BP Neural network, on account of this presentd method, by collecting parameters of grid voltage and significant frequency of harmonic current, then, construct couples of tranining samples and fully use the advantages of BP Neural network that can discretionarily utlize arbitrary precision to approximate any continuous function, and computing the optimized voltage of DC side, as a result, achieving online adjustment of capcitors voltage at DC side. Futher more, adjusting the hysteresis width automatically according to the voltage variation of capacitor, thus the voltage of DC side can automatically adapt to fluctuation of grid voltage and load current, so that to obtain comprehensive optimum of power loss and compensation performance of power active filter.

With the development of agricultural modernization, agricultural environment protection, Wireless Sensor Networks are used in the field of environmental monitoring for modern agriculture, which brings a broad and bright application prospects. The paper presents a real-time monitoring system based ZigBee wireless sensor network and GPRS network. The system gives the hardware design of wireless sensor node and software implementations. The system design provided a guarantee to achieve accurate, remote and real-time monitoring agricultural environmental information.

Text mining is the task of automatic discovery of new, previously unknown information from unstructured document collections. Vector space or bag of words representation is one of the mainstream descriptions of text, in which each document is a data point in high-dimensional space and order between words is omitted. Generative models are probabilistic representation of data that can be regarded as the generator of observed data. Being probabilistic modelling approaches, a set of methods and criterions are available for model estimation, inference, comparison and selection for generative models. In this paper, we review several existing probabilistic models that are commonly applied to discrete exchangeable collections in English text. We hope this will shed some light on the Chinese text modelling and mining tasks.

The paper presents the structural characteristics of solid wastes separation sieve. Pieces of plastic film and sandstones with different friction factors and elasticity coefficients are chosen as the research objects. The motion and the separation mechanism of materials in the sorting process are studied. According to the motion analysis on pieces of plastic film and sandstones on solid wastes separation sieve, it can be concluded that the materials with different friction factors and elasticity coefficients can all be sorted by solid wastes separation sieve. The more difference they have in friction factors and elasticity coefficients, the better separation performance can be achieved. The selection and calculation on the kinetic parameters of solid wastes separation sieve is carried out, which provides the theory evidence for the design of new friction sorting equipment and opens up new prospects for the application of solid wastes separation sieve.

The Wenchuan earthquake and Yushu earthquake indicated that the damage of large bay brick masonry buildings with fewer internal longitudinal walls, even no longitudinal wall in the sitting room was much heavier than the ordinary buildings. In order to study this damage phenomenon, the typical buildings were analyzed. (one is large bay building, another is ordinary building) The reserve coefficient of average shear capacity is used to evaluate the seismic capacity of the structure. The analytical results show that the safe reserve coefficient of the latter one is smaller, and easy to damage. Therefore, such building in earthquake zone should add the longitudinal wall in the sitting room to strengthen the local longitudinal stiffness.

Hydraulic spool valve is one of the important elements in the hydraulic system. Considering the material properties of the fluid and solid, CFD models of the viscous temperature rise was built and calculated with the spool material influence on the viscous temperature rise and thermal deformation. Analyzed: the viscosity of the fluid was the main factor affecting on temperature rise, while the coefficient of thermal expansion of the spool was also the main factor to affect the throttling temperature rise of the deformation.

This paper simulated the resistance to lateral impact properties of the T-shaped steel reinforced concrete column through the large finite element software ABAQUS. Extracting the time-displacement curves of different impact sites, by comparison we know: with the impact site is farther and farther from solid end, the maximum lateral displacement in the impact site of the member is bigger and bigger. The maximum displacements in the symmetrical place to the mid-span of the member are very similar. From time-displacement curves of seven models we can know, after reaching the ultimate bearing capacity, the curves leveled off gradually and changed slowly showing good stability and showing good ductility and deformation capacity. It can be concluded: the impact different parts of the dynamic response of lateral impact of the T-shaped steel reinforced concrete columns have a certain impact.

Combining the current research method of rock mass parameters, to the RuMei hydropower station in Tibet as the background, using the finite element calculation software, and using the two section for numerical analysis, considering all kinds of conditions under the condition of the simulated stress strain and displacement, the distribution of plastic failure, comprehensive analysis and evaluation of its stability.

Milk fiber is not only practical art, but also a kind of art beyond utility in Building space decoration. It has gradually stepped into the stage of decorative materials, the paper focuses on milk fiber and carries out discussion on development of milk fibers innovative area by analysis of its application in Building space decoration. Comparisons are made between design of traditional field and innovation of new field to achieve a new breakthrough for values of materials. By exploration of unique language of Building space decoration, bold development and experiments, milk fiber can create new art forms and styles.

In order to design a moving target fast tracking system with respect to a real-time and stable tracking process, especially when the shape of moving target or its environment condition changes, a new algorithm named SURF-KMs is proposed. SURF-KMs combines the advantages of SURF algorithm with a cluster analysis of K-means method. First, feature points are collected and then they generate the matching template vectors based on the SURF algorithm. Second, the feature points and the center of the target are estimated by using the K-means method to determine the target's cluster scope and update the tracking window. Finally, a self-adapting updating strategy for matching template is also proposed in order to track moving target automatically. Experimental results indicate that SURF-KMs is mostly able to achieve a stable tracking while with the monitored target rotating, scale changing, and also the environment illumination glittering. Moreover, it can satisfy the system requirements of tracking stability, higher precision and anti-jamming. (2013) Trans Tech Publications, Switzerland.

The simulator provides a virtual emulational condition. It can test the functions of infrared missile by simulating the movement of the target and the interferes. A target simulator with multiple interferences is provided in this paper. The blackbody is used as radiating source. The simulator’s construction, principle and the realization of motion track are mentioned. It has been proved that the simulator can meet the demands of development of missile. And the simulator is universal because the interference source has three bands.

A facile and efficient synthesis of indole has been developed using ketones or cyclohexandiones with aryhydrazine hydrochlorides in 85% to 95% yields in water under ultrasound irradiation in the presence of Novel SO3H-functionalized ionic liquids (ILs) catalyst. Simple work-up procedure, environmentally friendly, inexpensive and non-toxic catalyst, shorter reaction times along with excellent product yields are the significant features of this practical method.

The study on convergence of GA is always one of the most important theoretical issues. This paper analyses the sufficient condition which guarantees the convergence of GA. Via analyzing the convergence rate of GA, the average computational complexity can be implied and the optimization efficiency of GA can be judged. This paper proposes the approach to calculating the first expected hitting time and analyzes the bounds of the first hitting time of concrete GA using the proposed approach.

Data exchange is one of the material bottlenecks in information construction. Many data exchange methods have been proposed to improve application interoperability. However, how to reliably provide numerous exchanges of data is a new challenge. In this paper, we design a new file format, aim to solve the above problem. The format ESFT not only guarantees the safety performance, but also dynamically generates ESFT label to record exchange historical information.

Use single and coexistence of simulated mine water contains Fe2+ and Mn2+ as processing object, the new NWMO medicament on Fe2+ and Mn2+’s removal efficiency, NWMO dosage, pH, reaction time and temperature on NWMO’s removal efficiency were investigated. When treated mine water only contains Fe2+, the appropriate conditions of the factors are that NWMO dosage/Fe2+ content=19:1, pH=5, room temperature, the reaction time is 10min, and the removal rate of Fe2+ is more than 80%; When treated mine water only contains Mn2+, the appropriate conditions of the factors are that NWMO dosage/Mn2+ content=22:1, pH=6, 35°C, the reaction time is 10min, the removal rate of Mn2+ is more than 60%; When the processing of Fe2+ and Mn2+ coexistence of mine water, the appropriate conditions of the factors are that NWMO dosage/Fe2+content=19:1, Fe2+ content/Mn2+ content=5:1, pH=6, 35°C, the reaction time is 10min, the removal rate of Fe2+ can be as high as 100%, and the highest Mn2+ removal rate can amount to 75%. In view of the current mine water quality characteristics that contains Fe2+ and Mn2+, the NWMO medicament is very suitable, and can achieve quick and efficient removal of iron and manganese.

Based on the high turbidity feature of mine water, Glutinous Rice Starch(St)- Acrylamide(AM) graft polymer cationic flocculant was synthesised by copolymerization with St and AM as materials, ammonium persulfate and sodium hydrogen sulfite as the initiator, 2.3-glycigyl trimethyl ammonium chloride were used as cationic agent. The optimum condition of cation was established through orthogonal experiments: reaction time is 4 hrs, St dosage is 5g, mass ratio of AM and St is 4:1, dosage of initiator is 1.4g, GTA dosage is 2.6g, NaOH dosage is 0.24g, etherification reaction time is 2.5 hrs, reaction temperature is 70°C. The performance of the cationic starch flocculant used as the mine wastewater treating was evaluated.

Through an actual test of the planting on the roof, observes the main climatic factors of roof surfaces about the the grass layer of green roof and the concrete roof.Study and analysis the variation of the temperature and the relative humidity of surface temperature and the air inside and outside during the daytime. Studies have shown that the application of green roof can change the temperature and humidity to decrease the temperature of the roof surface.Thereby reduces the indoor air temperature and drop the outdoor local relative humidity.

High stress in the surrounding rock mass causes serious stability problems. The applied support system used in this conduction should be able to carry high loads and also accommodate large deformations without experiencing serious damage. In this paper, a brief overview of the history of yielding/energy-absorbing rock bolts is provided. And then, a new yielding bolt invented by the author is introduced in detail, including its layout and principle. Theoretical analysis shows that the bolt has large load-bearing and deformation capacities, thereby absorbing a large amount of energy to maintain the stability of surrounding rock.

The modified polyacrylamide/organic montmorillonite (PAM/OMMT) flocculant was prepared by in-situ intercalation polymerization with acrylamide monomer and OMMT under CO2 inert atmosphere. The OMMT was synthesized with MMT and cetyl trimethyl ammonium bromide (CTAB) as intercalation agent by cationic exchange reaction. This flocculant was used to deal with coalmine wastewater. The effects of the flocculant dose on turbidity removal rate and settling time, the influent of pH value, temperature on turbidity removal rate and the comparison with PAM was studied. Experimental results show that PAM/OMMT is a kind of high efficient compound flocculating agent, the formation of hydrophobic micro in polymer surface area has strong adsorption ability and dispersing capability. Then MMT increased the quality of flocculant body so that flocculating settling time is shorter. Its turbidity removal rate can be as high as 95.5%. Compared with PAM, PAM/OMMT presents many advantages with higher turbidity removal rate, higher settling velocity, lower relatively sludge water content and lower sensitivity of temperature and pH in wastewater treatment process. Flocculant dosage in 10 to 20 mg/L is the optimal flocculation condition. Sludge water content treated by PAM/OMMT (63.4%) is relatively lower than PAM (80.2%).

The effect of different hydrostatic extrusion ratios on the microstructure and mechanical properties of the ZK60 magnesium alloys were investigated. The results showed that, the major deformation mechanism of the alloy is twinning at room temperature, which resulted in that the tensile strengthen and hardness of the extruded alloy improved greatly. With deformation ratio increasing, the ultimate tensile strengthen and hardness are linearly increased, with the functions of Y= 4.2X+358.3 and Y=2.3X +73.69, respectively. And the maximum tensile strength and hardness of the extruded alloy are 383 MPa and 87HB, respectively. But the elongation decreases obviously, the minimum decreasing degree is 50%. With the deformation ratio increasing, the tendency of elongation rate increased as an “M” model.

The extruded microstructure and properties of Mg-2.7Nd-1.2Gd-0.4Zn-0.3Zr alloy by squeeze casting were investigated. After aging process (T5), the dislocation density was enhanced and the dislocation interaction was increased; the factors of grain refinement, RE phases redistribution, the increment of dislocations and the interaction between dislocations and precipitate phases were contributed to the strength increase after hot extrusion and aging treatment, the fracture mode of the hot-extruded alloy was the fracture of the secondary phases and the trans-grain fracture.

This paper first reported species composition and distribution of biomass, habitat density and characteristics of community structure of benthos. The result has showed that 64 species is first recorded from intertidal zone at Sanmen, of which, most are eurythermal and eurychoric species, and the predominant species are Bluecoat exert, Morale iridescent,Cerithidea cingulata, Lunatia gilva, Laternula marilina and Gaetice depressus etc. .The range of benthic biomass is from 234.25g/m2 to 440g/m2; and habitat density is from 955.0 ind./m2 to 2950.0 ind./m2. The vertical distribution has shown that species, biomass and habitat density sequence on the intertidal zone are middle tide region > low tide region > high tide region.

This paper focuses on the mechanical properties of carbon fiber cloth reinforced bamboos. Using the carbon fiber cloth to reinforce circularly the bamboo can protect dry bursting of the bamboos and improve its mechanical performances. A series of experiments were carried out to investigate the compressive strength, tensile strength and bending strength of bamboo reinforced with carbon fiber cloth. The mechanical performances of bamboos with and without reinforcing were compared and the efficient reinforcing method was suggested, with such method the compressive strength and bending strength of carbon fiber reinforced bamboos could be increased obviously compared with that of bamboos without reinforcing.

2008 has seen the global financial crisis through which it is realized that a new growth mode, rather than Business as Usual, should be pursued in every country. Green New Deal, as a new economic growth mode, is generally accepted. Every country has increased the investment in green economy and made green economy a brand-new growth mode which resists economic and environmental crisis and promotes employment. Economy, environment and climates are the common problems all humans have to be faced with. Therefore, in the sense of Global Governance, Green New Deal shows a tendency to Global Green New Deal. Outstanding achievements have been made in China through the transformation of economic growth mode. Green Economy and Sustainable Development with Chinese characteristics have been gaining acceptance and approval by more and more countries.

In this paper, intelligent control system in the intersection was designed by use of the control principles of green light length. The green light time from four groups were controlled by actual traffic flow, which could be detected by use of inductive sensors to auto-adjust the length of time. Secondly, combined with the traffic scale, road, time and seasonal changes situation, turn-left controller was tried to add in the traffic lights system by use of fuzzy control method at the crossroads. The feasibility of control principles from green light length were verified by debug in the PLC program.

The paper presents the structural characteristics of counter flow screen. Pieces of plastic film and sandstones with different friction factors and elasticity coefficients are chosen as the research objects. The motion state and the sorting mechanism of materials in the sorting process are studied. According to the motion analysis on pieces of plastic film and sandstones on counter flow screen, it can be concluded that the materials with different friction factors and elasticity coefficients can all be sorted by counter flow screen. The more difference they have in friction factors and elasticity coefficients, the better sorting performance can be achieved. The selection and computation on the dynamical parameters of counter flow screen is carried out, which provides the theory evidence for the design of new friction sorting equipment and opens up new prospects for the application of counter flow screen.

An Ice-Detecting and Ice-Melting System of Electricity-Transmitting Lines based on ZigBee Wireless Communication uses ZigBee wireless network as the flat. Sub nodes are placed at some places of the electricity- transmitting lines. The sub nodes detect the icing status of electricity-transmitting lines by using the vibration tube ice sensors and send the ice signals to the main node via the ZigBee wireless network. The main node sends the ice signals to PC via USB interface and launches the ice-melting system at the same time. The principle and sense organ structure of the vibration tube ice sensor are briefly introduced. The hardware and software designs of sub node and main node are stress explained. Finally, the theory of the controllable inductor and capacitor compensation ice-melting system is particularly expatiated.

Support vector machine (SVM) has excellent learning, classification ability and generalization ability, which uses structural risk minimization instead of traditional empirical risk minimization based on large sample. The perfect performance of SVM will be realized only if the parameters are rightly selected. The accuracy and efficiency of classification largely depend on the quality of the parameters selection. Focusing on the problem of the parameters selection in least squares support vector machine (LSSVM), a new method is proposed to optimize the parameters in LSSVM using adaptive genetic algorithm. The research is provided using this method on the fault diagnosis of a certain type of helicopter’s helicopter-electrical-box. Simulated results show that the proposed method achieves perfect accuracy and efficiency in fault diagnosis.

The data from 11 meteorological radiosonde stations in 5 provinces including Shanxi, Shaanxi, Ningxia, Inner Mongolia and Hebei are divided into 9 different data collections which are used to deduce the linear regression models of atmospheric weighting mean temperature (Tm) for Ground-based GPS precipitable water vapor (PWV) retrieval. These 9 models, together with Bevis model, are used to retrieve the GPS PWV at station BGTY. In comparison with the correlations between the ground-based GPS PWV and radiosonde PWV at this station, the difference between these 10 different models of Tm is analyzed. The results show that the Bevis model of Tm can be used to retrieve the GPS PWV of the regions mentioned above. At the same time, the Tm model computed from the radiosonde measurements of specific regions and seasons can provide more accurate GPS PWV than the Bevis model.

Articulatory vibrating screen is composed of multi-section screen with articulatory vibrating. The principle of even-thickness screening is referenced on its layout, with linear vibrating screen as the discharge end, with round vibrating screens as the feeding end, and also the intermediate screen. In accordance with the structural features of articulatory vibrating screen and under the condition of assembly module in Pro/E, mechanical components of articulatory vibrating screen are assembled in the light of the arrangement, the sequence, the restrictions and the modifications of installation. With the visualized research on the operational process, the three-dimensional illustrations of assembly model are established to ensure the correct design on every mechanical component of articulatory vibrating screen. The finite element model of vibrating screen is set up by its analysis software to carry out the analysis of finite element calculation and modal according to two operating modes of the regular work and the machine halt beyond resonance region. The analysis result indicates that the intensity and the rigidity of the vibrating screen are safe; the machine operation is stable; and no resonance phenomenon would happen. This study provides the theoretical reference for the design of similar machinery. It is of practical importance and economic value to apply the visualized design method into the design of articulatory vibrating screen.

The nuclear waste storage projects, hydropower and etc are often installed in the hard crystalline rocks. The creep phenomenon of the hard rocks appears in virtue of the complex geological conditions, especially when the excavation brings about damage and cracks to the rockmass, and they largely weaken the hydraulic performances of surrounding rock. Once the excavation-caused cracks are well connected with the native ones together, the engineering safety will be brought great harm to. By dint of newly developed shear-flow-creep coupled experiment system, on condition of the constant normal stiffness boundary conditions, the coupled shear-flow-creep tests are conducted. Not only the tests testify that the equipments is reasonable and effective and the creep largely influences the seepage performance of the rock crack, but also the coupling characters are primarily proved up.

In the presented work, the comprehensive evaluation index system of the repair and reinforcement technology carried on mortar perfusion machine is constituted by 24 indices. According to expert investigation data, entropy method and maximum membership degree are employed to determine the weight of each index and do comprehensive evaluation respectively. It could be found that the largest social benefit of this technology was achieved under the condition of an excellent overall efficiency. Finally, some policy recommendations are proposed based on the evaluation results of relevant technology.