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AZ80+0.4%Ce alloy ultra-thin-walled tube with a wall thickness of 0.6 mm was fabricated by multi-pass variable wall thickness extrusion (VWTE) at 693 K. Microsturcture and texture evolution were investigated. The results indicate that the average grain size decreases from ~47 μm of extruded alloy to ~8.9 μm after 5 passes VWTE. The total area reduction of Mg alloy tube is 91 %. Homogeneity of microstructure is improved obviously and the morphology of Mg17Al12 phases in coarse grains and fine DRXed grains exhibit lamellar and granular shapes, respectively. In addition to the microstructure evolution, the VWTEed tubes showed a strong texture of (0001) planes, and the intensity decreased with deformation increasing to 4 passes. After 5p-VWTE, a strong texture characterized by (0001) pole tilting 20 degrees rotated from extrusion direction (ED) towards normal direction (ND).

Graphene-aluminum (Gr/Al) composite laminated by aluminum (Al) and graphene sheets alternately has excellent mechanical properties thanks to the high strength, high Young’s modulus and the two-dimensional atomic structure of graphene. In this study, the uniaxial tensile properties of Gr/Al nano-laminated composite are studied by molecular dynamics (MD) method. It is found that the thickness of Al layer has a significant effect on the tensile strength and Yang’s modulus of the Gr/Al composite. Composite with a smaller thickness of Al layer shows better properties. Graphene not only block propagation of dislocations, but bear most of the loads, resulting in higher Young's modulus, tensile strength and failure strain of the composites than those of pure Al. The simulation of temperature-effect shows that the Gr/Al composite is difficult to arise plastic deformation at low temperature, which lead to a higher strength and modulus of the composite. In addition, the effect of graphene stacking on the properties of composites is investigated. Through tensile tests at the vertical and parallel interfaces, it is found that graphene stacking may lead to a reduced performance of the composite.

The automotive emission has become the main source of the air pollution in cities. How to remove NOx effectively is the key and difficult point in the control of automobile exhaust. In this work, sol-gel was applied to prepare NOx purification catalyst, LaCoO3 which was doped with strontium (Sr) and iron (Fe). The average particle size was less than 25 nm. The optimum composition of doped LaCoO3 was determined as La0.8Sr0.2Co0.95Fe0.05O3 with a minimum particle size, 14.3nm. The denitrification rate of La0.8Sr0.2Co0.95Fe0.05O3 increased by 27.9% compared with that of LaCoO3. It was noted that the sample powder would agglomerate when doped LaCoO3 was calcinated at 800°C, the calcination temperature of LaCoO3. Therefore the calcination temperature for double doped LaCoO3 was optimized. According to results of XRD and BET, the optimum calcination temperature of La0.8Sr0.2Co0.95Fe0.05O3 is 575°C, which not only overcame the agglomeration but also reduced the particle size to 11.2nm. The denitrification rate of La0.8Sr0.2Co0.95Fe0.05O3 calcinated at 575°C is up to 95.8% which is higher 38.7% than that of it calcinated at 800 °C.

Using anionic surfactant sodium dodecylsulfate (SDS), cationic surfactant cetyltrimethylammonium bromide (CTAB) and nonionic surfactant polyethylene glycol 20000 (PEG20000) and glyceryl monostearate (monostearin) respectively, Ce-doped Y3Al5O12(YAG:Ce3+(6%)) yellow phosphors were prepared by a combination method of high energy ball milling and solid state reaction. The effects of surfactant type on structure, morphology and luminescence properties were investigated by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and fluorescence spectrometer. The results showed that the crystal structure of YAG:Ce3+phosphors were not changed with the introduction of surfactants,but their morphology was greatly influenced. The maximum PL intensity was obtained for the nonionic surfactant PEG20000 due to the more uniform morphology and size as well as more homogeneous distribution of particles. Also, the results demonstrated that surfactant concentration had a vital effect on morphology and fluorescent properties of the phosphors,and the optimum amount of surfactant is 10 wt%.

Using the static displacement data, this paper presented a damage localization method for a continuous beam. This method is based on the estimation of changes in the static displacements of the structure. The most significant advantage of the method is that it does not require development of an analytical model of the structure being tested. All predictions are made directly from the measurments taken on the structure. The efficiency of the proposed method is demonstrated using simulated data of a three-span continuous beam. The results showed that the region in which the displacement variation is maximum is the damaged region for the continuous beam. Regardless of damages being small or large, the proposed method can identify locations of structural damages accurately only using the displacement changes under the applied static load. The proposed procedure is economical for computation and simple to implement. The presented scheme may be useful for damage localization of the continuous beam.

The molten blast furnace slag (BF slag) is discharged at the temperature of about 1400-1550 °C, which contains a large amount of heat. At present, water quenching is the main technology to treat the BF slag, but this method not only consumes a huge amount of water, but also fails to recover the waste heat. Compared with water quenching, the dry centrifugal granulation has obvious advantages. There is no water consumed and the waste heat can be recovered efficiently, thus this technology has great potential. This technology mainly contains two processes: the granulating process and the heat recovery process. The present development statuses on those two processes are summarized respectively and the prospect of dry centrifugal granulation technology is forecasted.

Ascorbic acid (VC) was used as carbon source for Li2MnSiO4/C composite synthesized by a sol-gel method. By comparing the electrochemical performance of the Li2MnSiO4/C composite and pure Li2MnSiO4, it was found that VC adding can improve the capacity of Li2MnSiO4. The Li2MnSiO4/C with 10% VC shows a discharge capacity of 212 mAh/g at 0.05C and Li2MnSiO4/C with 15% VC shows discharge capacity of 192 mAh/g at 0.1C, that were higher than the capacity of pure Li2MnSiO4.

In order to make better use of video image processing technology to monitor and analyze behaviors of animals, a new walking posture analysis method based on star skeleton is proposed. Firstly, a pig target is detected and its boundary is extracted from the images. Secondly, according to the target’s boundary the center of mass is computed and the curve of distance between contour points and center of mass is draw. The extremums of the above curve are computed to obtain the key contour points from the curve. The stick model of pigs is built by connecting the key contour points with its center of mass. Finally, the gaits of pigs are recognized by analyzing cyclic motion of the key contour points in the stick model. More specifically, the foreleg walking frequency of pigs could be calculated using the spectrum analysis method. The experiments results indicate that this method has higher recognition accuracy for the walking gaits of pigs. The relative error of the results is only within 10%. Furthermore, compared with manual monitoring method, it is more objective and convenient. Thus, this algorithm provides a new solution for animal behavior analysis based on video surveillance and image processing.

Combined extracts of Astragalus and the Chinese yam are an effective traditional Chinese medicine for treating diabetes. However, formal studies evaluating the effects of this combination of extracts have not been conducted. To examine the antidiabetic effects of this combination of extracts, we carried out a metabonomic study in rats. The collected liquid chromatography/mass spectrometry data were processed using the mixOmics R package. Clustered image maps (CIMs), networks, pattern recognition functions were used to perform preliminary metabonomic analysis, and the efficacy of the different treatments was evaluated. Our data demonstrated that these medicinal extracts may be useful in the treatment of diabetes through modulation of blood glucose levels and blood lipid indices. Additionally, the mixOmics package is a very useful and powerful tool for metabonomics study.

In order to ensure the reliable transmission of important data between the host computers in fields of industrial control based on Zigbee. We designed a reliable serial transmission mechanism. The core of the mechanism is as follows: first identified the data packet with a sequence number, if the receiving node received a data packet, then compared the sequence number in the data package with expected sequence number, and determined whether to receive the data package and sends it to the host computer. Three values of the variable represented three kinds of status respectively, namely, data has been successfully sent, received duplicate packet and serial port is busy. Receiving node returned status identifier and other information to sending node. According to the statuses of data has been successfully sent or received duplicate packet, sending node would set the send status to allow transmitting new data. As to the case serial port is busy, the sending node would resend the old data package later. Experimental results show that this system is stable and reliable, with good adaptability.

Aiming at the purification of rotor center’s orbit, a new approach was presented by using ensemble empirical mode decomposition (EEMD). Ensemble empirical mode decomposition decomposed a complicated signal into a series of intrinsic mode functions (IMFs). Then according to prior knowledge of rotating machinery, chose some interested IMFs and reconstructed the needed signal. By doing this the noises would be eliminated successfully. At last the purification of rotor center’s orbit was obtained by extracting the useful signal component. Simulation and practical results show the advantage of EEMD in noise de-noising and purification of rotor center’s orbit. This method also has simple algorithm and high calculating speed; it provides a new way for purification of rotor center’s orbit of rotating machinery.

A large amount of waste heat is generated in the oil extraction process when using steam assisted gravity drainage (SAGD) technology. Thermal distillation technology is recommended to deal with the Liaohe Oilfield sewage. It not only can utilize the low-grade energy source, but also can recover the water to settle the water shortage problem. The principles and processes of multi-stage flash distillation (MSF), multi-effect distillation (MED) and vapor compression (VC) are introduced, and the tech-economic analysis is also made. It is found that it has significant advantage in heat and water recovery using the MED technology to deal with the Liaohe Oilfield sewage.

Recently, by the continuous development of the urban rail transport construction, the issues of urban land use have become increasingly prominent, which requires a combination of urban land use and transport systems, so as to choose a reasonable planning and optimization strategies to promote sustainable urban development. This paper bases on Hangzhou Rail Transport Line rail and land use, with analysis of the status of spatial pattern, structure and function, raising optimization strategies for sustainable transport modes for further planning of urban space, thus, providing an important theoretical basis.

The PV and wind hybrid power system uses the front-end DC-DC conversion circuit, the system's overall output power is unified deployment and controlled, through elaborating the component characteristics and assessing mathematical model of the actual obtained, more accurately determines operation condition of the system per hour. The system energy analysis of flow and motion makes the system in dynamic change switch from the different forms of work patterns and operation, completing the corresponding control, so as to realize the optimization of system and reliable operation.

Epoxy resin (EP) nanocomposites reinforced with different contents of core-shell structured Ni@NiO nanoparticles (NPs) were fabricated by using a surface wetting method. The nanoindentation and nanoscratch properties of Ni@NiO/EP nanocomposites were comparatively studied based on nanoindentation technique. Results revealed that 5 wt.% content of Ni@NiO NPs was the optimal concentration for Ni@NiO/EP composites to obtain the best improvement of nanomechanical properties. In comparison with pristine EP, the highest enhancements of hardness and elastic modulus of 5 wt.% Ni@NiO/EP nanocomposites were increased by 37.8% and 16.3%, respectively.

Vibration monitoring of machinery and equipment plays a very important role in judging the equipment maintenance and operational status. This paper discussed the mechanical vibration amplitude measurement system scheme based on PVDF piezoelectric sensors. The entire test system is mainly composed of PVDF piezoelectric film sensors, charge amplifiers, data acquisition and processing and display of valid values. It can display the amplitude of vibration signals in real time and alarm. The measurement system has the advantages of a simple structure and convenient operation.

According to the test result about class insulator string of 32 units, a method of calculating 50% ac flashover voltage U50 based on radial basis function network is put forward in this paper. Inputs of the model are equivalent salt deposit density ρESDD and nonsoluble deposit density ρNSDD ,the output of the model is 50% ac flashover voltage of polluted insulator strings, the Orthogonal least squares algorithm was used to select right hide layer neurons and center vectors, and the weight from hide layer neurons to output layer neurons are determined by pseud-inverse method. The calculating result is in concordance with the test result, it is indicated that the model can give some references to access the pollution condition of external insulation.

In this paper, based on the principle of induction heating and eddy current fields working, the equivalent circuit model of induction cooker heating was proposed and analyzed. By using the finite element numerical analysis software, the optimization design and model simulations of induction cooker were implemented. Finally, a new design of induction cooker with the uniform heating-coil was proposed, and the magnetic circuit modeling and simulation of new type induction cooker heating was carried out, the eddy current loss density distribution in the common wire coil and the improved wire coil was separately calculated and compared. The results shown the new wire coil had higher energy efficiency and more uniform heating characteristics, which provided a reference for the future optimization design and development of induction cooker.

In this paper, we present an acoustic-structure couple interaction model of partial discharge (PD) in Gas Insulated Switchgear, the interaction between the internal acoustic source of partial discharge and structure of GIS is simulated with the finite element analysis, and the internal and external acoustic pressure levels distribution of GIS is obtained. The results based on the frequency sweep shown that the internal acoustic pressure levels is bigger than the external acoustic pressure levels of GIS in the ultrasonic frequency spectrum,it suggests that it should use the ultrasonic sensor with a broadband spectrum response to measure partial discharge in GIS, which can obtain high sensitivity. In addition, the external sound pressure of GIS is very small, and the signal of the Ultrasonic sensors must be amplified for measurement. Meanwhile, the outside acoustic pressure of the epoxy insulator is so small that it can properly judge the adjacent GIS unit partial discharge conditions.

In this paper, we produced the 0-3 PZT/P(VDF-TFE) piezoelectric composite film with 80μm thickness using PZT piezoelectric ceramics and fluorine resin P(VDF-TFE) by weight 85/15 ingredients through the hot rolling machine and corona-discharge method. A sensor with 4cm×1.3cm area is designed and produced by using this film. We have carried out the breaking of a pencil lead pressed against an aluminum plate acoustic emission testing. The result shown that the sensor is with fast response and high sensitivity advantage, the sensor can be used as acoustic emission sensor. Meanwhile the sensor is very easy to use due to it is a soft film sensor.

The roots ofRaphanus sativusL., also called radish, has been used as a traditional anti-migraine drug in China for hundreds of years. However, its bioactive substances and pharmacological mechanism were still not very clear. In this study, two new natural products were isolated from the roots ofRaphanus sativusL.by successive chromatographic procedures, such as open silica gel, Sephadex LH-20 and RP-18 column chromatograph. The structures of isolated compounds were elucidated as Cis-(1-methylazetidin-2-yl) methanol and cyclo- (4-methyl-Val-4-methyl-Val) on the basis of spectral data analysis, including MS and NMR (1H-NMR,13C-NMR, NOESY, HSQC and HMBC). The new natural products would be potential candidates for early anti-migraine drug study.

Charge amplifier is the key component in the pre-processing circuit of the sensors. With the development of the sensor technology, the charge amplifier on the market has not been able to meet the requirement of the actual measurement. In this paper, a LF356-based charge amplifier is suitable for the conversion circuit of the polyvinylidene fluoride (PVDF) piezoelectric sensor, duing to its small volume, low power consumption and strong anti-interference. The fesibility and reliability of the charge amplifier are verified by simulating the circuit with Multisim10 and testing the hardware circuit. This charge amplifier achieves a volume of 19.32 cm3 and a bandwidth between 20kHz and 150kHz at a power consumption of 1 mW. Performance of this charge amplifier is investigated when it is connected to a standrad signal source, achieving a gain of 10 times.

Pure Ni coating and multi-layered Ni-P coatings were deposited on sintered NdFeB magnets by ion beam sputtering and electroless plating to improve the corrosion resistance of magnets, respectively. The structure and preferred growth orientation, surface morphology, the adhesive strength between coatings and magnets, and corrosion properties of samples were investigated by XRD, SEM, high-low temperature shock test and potentiodynamic polarization curves, respectively. It was found that electroless Ni-P coatings are amorphous with nodules distributed, Ni coating deposited by ion beam sputtering is crystalline and spherical Ni grains are densely packed. Ni coating deposited by ion beam sputtering can provide better protection for sintered NdFeB than that of electroless Ni-P coating.

In this paper, a two-dimensional non-steady-state heat transfer model has been established for the working conditions of thick slab in a steel plant in China, a modification has been made on the basis of the nailing experimental results, the slab solidification difference of practice and prediction by field heat tracing model has been analyzed. The results show that the actual solidification end point of slab is more close to meniscus than prediction, the distance difference is 0.592m, the better soft reduction zone is from 0.2 to 0.9, which the level of central segregation can be reduced from the class B 1.0 to C 1.0.

House fly maggot, Musca domestica (Linnaeus) (Diptera: Muscidae) is one of the traditional Chinese medicine (TCM). In our earlier studies, the anti-inflammatory and anti-atherosclerotic functions of the housefly maggot have been found and also the anti-inflammatory effective parts have been acquired. In this study, the effect of housefly maggot anti-inflammatory parts on proliferation and migration of TNF-α-stimulated human umbilical vein endothelial cells (HUVEC) were investigated. And the results showed that the proliferation index and the migration rates of HUVEC which stimulated by TNF-α were decreased significantly in housefly maggot anti-inflammatory parts treatment group. And also the secretion of vascular endothelial growth factor (VEGF) was decreased too compared with only TNF-α treatment group. Based on the above, the housefly maggot anti-inflammatory parts could regulate the endothelial cell dysfunction through decreasing cell proliferation and migration and a reduction in VEGF expression might plays a key role in this process.

SiO2 antireflective films were prepared by two-step catalyzed sol-gel method with TEOS as the raw materials, acid and ammonia as catalyst. Effects of the ratio of acid-catalyzed and base-catalyzed silica sols on the transmittance and stability of SiO2 film were investigated. The transmittance can be adjusted by change the ratio of base-catalyzed sols, and a higher transmittance can be obtained in the higher ratio of base-catalyzed coatings. A higher stability of SiO2 film in salt spray can be obtained in higher ratio of acid-catalyzed AR coatings. AR coatings with excellent transmittance and stability can be obtained by adjusting the ratio of acid/base catalyzed silica sols.

In the present work, the finite element method is employed to predict the effective thermal conductivity of diamond particle reinforced aluminum composite. The common finite element commercial software ANSYS is used to for this numerical analysis. A body-centered cubic particle arrangement model are constructed to simulate the microstructure of the composite with 60 vol.% diamond. The effect of particle size and inhomogeneous interfacial conductance on the thermal conductivity of diamond particles reinforced aluminum composite is investigated. Cubo-octahedral particles are assumed and interfacial thermal conductance between different diamond faces and aluminum matrix is implemented by real constants of contact element. The results show that the numerical results using present model agree reasonably well with the experimentation. Taking into consideration the interfacial thermal conductance, the influence of particle size on total thermal conductivity of composite is obvious, the larger size particles tend to meet requirement of the high thermal conductivity of composite. Fitting the experimental result with the inhomogeneous interfacial thermal conductance model, the evolution of the composite thermal property is profound studied.

SiO2 antireflective films were prepared by sol-gel method with TEOS as the raw materials and acid or ammonia as catalyst. The effects of different catalysts on the transmittance and the stability of film were investigated. The prepared base catalyzed SiO2 film has better antireflective effects than that of film acid catalyzed film, but the corrosion-resistance of SiO2 film catalyzed by acid was better than that of film catalyzed by base, the average transmittance in the range of 400-900nm of acid-catalyzed film after 50h salt spray test was about 93.8%, which was higher than that of base-catalyzed film.

Silica sol was prepared using TEOS as the precursor and HCl as the catalyst by sol-gel process. The effects of the ratio of the reactants and temperature on the viscosity of SiO2 sol during the sol-gel processing were investigated and the reaction activated energy was calculated. With the increase of the EtoH/TEOS ration, the viscosity reduced, a higher viscosity can be obtained at the H2O/TEOS ratio of about 8. The viscosity increased and the gel time decreased with the increase of temperature, the activation energy of the formation of gel was about 73.8kJ/mol.

The energy consumption of city is increasing and the problem of transportation jam is more and more serious. It requires reasonable spatial planning & optimization strategies on urban space to promote the development & construction of low-carbon cities. Basing on the concept of low carbon, the paper proposes the area strategy of low-carbon city, low-carbon village and the ecological matrix protected area, providing an important theoretical basis for furthering low-carbon city planning & construction ways.

Magnesium fluoride (MgF2) thin films were deposited by electron beam evaporation method and then films were bombarded by oxygen ions for various time to study the evolution of optical properties as a function of bombardment time. The transmittance, structure and morphology of films were measured by UV-vis spectroscopy, XRD and metallographic microscope, respectively. The mean transmittance of films in the visible range decrease significantly with an increase of bombardment time.

This paper discusses waste production of recycled aggregate concrete is used as the recycled concrete, experiment with different recycled aggregate instead of natural aggregate, the ratio of recycled concrete workability and compressive strength etc performance compared with ordinary concrete, analyzing the change of the recycled aggregate replacement rate on the influence of concrete strength.

A double-sided linear flux-switching permanent magnet machine applied in marine rudder direct drive applications is presented. The starting performances of the machine are calculated by finite element method. The simulation results of the proposed DLFSPM are verified by the experiment. The results have verified that the machine is suitability marine rudder direct drive applications.

Molecular dynamics simulations of water-based nanolubrication in Couette flow are carried out. The water molecules are simulated by the TIP3P model. Three different shear rates are 20 m/s and 40 m/s and 60 m/s, and the vertical pressure acted on the metal wall are 10GPa, 20 GPa, 30 GPa and 40 GPa respectively. The simulated results show that the greater pressure, the smaller the stable value of friction spacing, while the reduction rate of the stable value becomes small. Meanwhile, as pressure increases, the stabilization time is longer. However, under the same pressure, shear rate of influence on the friction spacing is not obvious. The friction spacing increases with the number of particles, showing that the presence of nanoparticles can enhance the bearing capacity.

Bisphenol A based epoxy acrylate (BABEA), a commercial ultraviolet (UV)-curiable material, was introduced as a new manufacturing material for facile fabrication of epoxy-functionalized films through UV-initiated copolymerization using glycidyl methacrylate (GMA) as the functional monomer. X-ray photoelectron spectroscope (XPS) results indicated the existence of epoxy groups on the surface of the poly (BABEA-co-GMA), which allowed for binding protein through an epoxy-amino group reaction. The contact angel results indicated the poly (BABEA-co-MMA) is hydrophilic, which avoided nonspecific adsorption of biological species. Bovine serum albumin (BSA) was successfully immobilized on the poly (BABEA-co-GMA) films by using the introduced epoxy groups effectively. This makes it possible to extend the application of such films in the fields of bio-separations and bio-recognitions.

A simple and reliable method of high-performance liquid chromatography with pre-column derivatization was developed to evaluate the quality of Oriental Latrine Fly Larvina through establishing chromatographic fingerprint. The separation was performed on a welch Ultimate XB-C8 column with a liner gradient elution of acetonitrile and acetate buffer. The developed method was validated by precision, stability and recovery. This study indicated that the chromatographic fingerprint analysis can be readily utilized as a quality control method for oriental latrine fly larvina.

This paper proposes a new approximation method called Enhanced Two-Point Exponential Approximation (ETPEA), which is derived based on Two-Point Exponential Approximation (TPEA). In TPEA, when the exponents of intervening variables cannot be calculated by fitting the sensitivities of the previous design point, the accuracy of TPEA is decreased. In such cases, ETPEA uses a substitution function to construct the approximate function, and the optimum result can be improved. Some typical structural optimization problems are tested, and the results indicate that the optimum design can be found accurately and quickly with the new approximation method. It is verified that the new approximation method is also efficient for large structural optimization problems.

Aiming at the purification of axis trace, a novel method was proposed by using ensemble empirical mode decomposition (EEMD). Ensemble empirical mode decomposition decomposed a complicated signal into a collection of intrinsic mode functions (IMFs). Then according to prior knowledge of rotating machinery, chose intrinsic mode function components and reconstructed the signal. Finally the purification of axis trace was obtained. Simulation and practical results show the advantage of ensemble empirical mode decomposition. This method also has simple algorithm and high calculating speed; it provides a new method for purification of axis trace.

The response of a large-size cooling tower with 250m high subjected to the seismic action are investigated by both random vibration theory and response spectrum method. Shell element is taken to model the tower body, and beam element is used for the circular foundation and supporting columns. The earthquake motion input is a colored filtered white noise model and mode superposition method is adopted to analyze the random response of the large-size cooling tower. The paper presents the power spectrum density functions (PDF) and standard deviation of the displacement of the top and characteristic node, and the analysis results indicate that the results of the stationary random vibration theory and the response spectrum method are the same order of magnitude. The power spectrum density function of the bottom node stress is obviously bigger than the one at the top and the throat, and the random response of meridonal stress is dominated at the top. In addition, the peak frequency position of the power spectrum density function is different from the corresponding stress.

Cryptotanshinone, tanshinone I, and tanshinone IIA were analyzed by High-performance liquid chromatography /electrospray ionization-mass spectrometry. MSn spectra were obtained and optimized by energy collision induced dissociation (CID) from [M+H]+ ions, the effect of collision energy on production of fragmental ions were studied and optimal signals were achieved. With the collision energy of 35%, tanshinones have optimal signals of fragmental ions and maximal amounts of product fragment ions respectively. The fragmentation pathways for the compounds were studied, and this information would be helpful for the quantitative and pharmacokinetic analysis of tanshinones.

The study set up the model of per capita GDP and the environmental index based on the Environmental Kuznets Curve (EKC) with the support of SPSS software and the 2003-2011 economics and environment data of Puyang City. And the result shows that the environmental Kuznets Curve (EKC) of industrial wastewater discharge and industrial sulfur dioxide emissions both display inverted U-shape; and just across the turning point, the discharge present downward trend with the increasing of per capita GDP; while the EKC of industrial fumes emissions display positive U-shape, and its emission present upward trend first and then downward with the increasing of per capita GDP. It shows that the environmental problems of Puyang City has partly improved, but has not been fully restrained. The main reasons are unreasonable industrial structure, single dominated industy and relatively low investment on environmental improvement.

The 2-thiol benzothiazole was blended in Polyvinylidene fluoride (PVDF) membrane to prepare a kind of PVDF modified ultrafiltration membrane that could be used to remove mercury ion in water treatment. The water flux and retention rate of BSA of obtained PVDF modified ultrafiltration membrane was 222 L/m2·h and 92.33% respectively. The membrane performance were characterized by infrared spectroscopy (FT-IR) and water contact angle measurement. The results showed that, the PVDF modified membrane presented better adsorption ability for mercury ion than the traditional PVDF membrane. After 4 phases of adsorption/desorption, the modified membrane maintained a mercury ion adsorption amount of 0.264 mg/cm2and the desorption rate could reached 94%.

Titanium and aluminum films were deposited on oxygen-free copper substrates by electron beam evaporation method to obtain Al/Cu and Al/Ti/Cu layer composites. Evolution of microstructure and properties of Al/Cu and Al/Ti/Cu thin film during heat treatment processes were investigated by XRD, SEM and electrical properties analysis. The introduce of Ti layer can prevent the formation of Cu-Al intermetallic compounds, and has no obvious influence on the electrical resistivity of Al/Cu thin film, which can be used as a pad in microelectronic package and devices.

The paper presents an test and computational results of finite element studies on the behavior and capacity of abnormal exterior joints of Steel Reinforced Concrete (SRC) column and Reinforced Concrete (RC) beam. The critical parameters influencing Anti-Shear Capacity are analyzed by ABAQUS, such as the eccentricity of column section, the steel ratio of the joint core zone, the concrete strength and the axial compression ratio and so on. As a result, the Anti-Shear capacity of the joints mainly depends on “the minor joint zone”. The calculating formula of Anti-Shear capacity of the joints, with the computing unit of minor joint core zone, is deduces.

Optimization design of building envelope-integrated collectors plays an important role in reducing energy consumption and improving thermal comfort. Take a passive solar house for an example, optimization design principles for passive solar house were proposed by simulation. Simulation results by changing envelope insulation thickness showed that the optimal thickness was between 30mm and 70mm for south wall, and 70mm~150mm for other façade, respectively. Meanwhile, the optimal thickness for concrete exterior walls was in the range of 200mm~300mm. Simulation of changing heat capacity proportion showed that the daily temperature difference decreased by 14oC to 5.2oC as the proportion increased doubled. However, considering the building initial investment, the arrangement of thermal mass should be determined by the building type and energy demand.

Based on the test of abnormal exterior joints of Steel Reinforced Concrete (SRC) column and Reinforced Concrete (RC) beam, the paper analyzed the influence on crack resistance behavior by ABAQUS, of the eccentricity of column section, the steel ratio of the joints zone, the concrete strength and the axial compression ratio and so on. The study indicates that the anti-crack capacity of the joints mainly depends on “the minor joint zone”. Based on the computing unit of minor joint core zone, the calculating formula of anti-crack capacity of the joints is deduced.

Nonlinear finite element analysis of abnormal exterior joints consist of Steel Reinforced Concrete column and Reinforced Concrete beam was performed using ABAQUS computation program, the joints failure mode and the skeleton curve were calculated. Comparison with experimental results to prove the reliability of finite element analysis. Then, the paper analyzed different parameters which affect the joints loading capacity, the results indicate that to a certain extent, the eccentricity of the upper and lower column sections and steel ratio both have important effects on the stiffness and ultimate loading capacity of the joints; with the increment of the ratio of axial compression, the joints ductility will be reduced.

Polycrystalline aluminum nitride (AlN) thin films were deposited by pulsed DC reactive magnetron sputtering in the mixed gas of argon, nitrogen and hydrogen. The deposited films were characterized by XRD, SEM, EDS, AFM, UV-vis spectroscopy and scratch test. The results show that hydrogen significantly affects the microstructures and properties of AlN films. The preferred orientation of AlN thin film transforms from c-axis to a-axis with the increase of hydrogen content. The mean transmittance and adhesive strength increases obviously when AlN films was deposited at high hydrogen content atmosphere.

Extensive application of rigid polyurethane foam leads to a huge amount of waste after reaching their useful life. Recycling of this waste can protect the environment effectively. In this paper, mechanical recycling was employed in the preparation of the recycled insulation board. The relationship was represented between the amount of water-soluble PF and aqueous polyethylene wax used and thermal conductivity, along with the compression performance of the material. A result of better property was observed when the ratio of rubber of 15% water-soluble PF and 3% aqueous polyethylene wax was employed.

Fe-6.5wt%Si silicon steel has excellent soft magnetic properties, but its ductility in room temperature is near zero. A lot of researchers tried to improve the ductility by adding alloy elements. In this paper, we summarized the action mechanism and the content of these alloy elements according to the overseas and domestic research status. Al, B, Cr, RE, et al. improved the ductility of Fe-6.5wt%Si silicon steel in low temperature, but reduced its magnetic properties simultaneously. Ni, Ti, Mn, et al. improved the ductility of Fe-6.5wt%Si silicon steel inconspicuously.