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The case ‘Using in situ cold recycling for carriageways in an urban environment within the North of Essex’ was chosen as a sustainability assessment example in this paper. The purpose of this paper is to assess the sustainability of the case above, to specific its impacts on environmental, economic and social aspects, and obtain a result of the assessment. Firstly the background of the case will be introduced, and the impacts and assessment will then be discussed. The result of the assessment will also be presented in the final part.

With the increasing of industrialization, the heavy metals cause serious pollution of water in China. This paper reviewed the study of many kinds of new adsorbent materials remove heavy metal from pollution water, these new adsorbent including modification activated carbon, inorganic absorbent material, industrial waste, biological adsorbents and synthetic adsorbent, and pointed out the trend of development of the new adsorbent material application in the future.

The agent with a function of controlling the release rate of the anti-icing modifier used in the asphalt mixture was researched in this paper. The purpose is to make the salt components’ release rate controllable and extend the usage life of the anti-icing modifier. Apply the “Rapid Determination of Chloride Ion Content Instrument” to assess the release rate of the different agents. Research and analyze the impact on the anti-icing modifier’s durability brought by the different agents.

A practical and diastereoselective synthetic study towards the cytotoxic and antimalarial compounds aculeatin A and B is described, which started from commercially available 1-tetradecanol and proceeded through a key Evans aldol reaction.

In this paper, we mainly address the problem of tracking a single ship in inland waterway CCTV (Closed-Circuit Television) video sequences. Although state-of-the-art performance has been demonstrated in TLD (Tracking-Learning-Detection) visual tracking, it is still challenging to perform long-term robust ship tracking due to factors such as cluttered background, scale change, partial or full occlusion and so forth. In this work, we focus on tracking a single ship when it suffers occlusion. To accomplish this goal, an effective Kalman filter is adopted to construct a novel online model to adapt to the rapid ship appearance change caused by occlusion. Experimental results on numerous inland waterway CCTV video sequences demonstrate that the proposed algorithm outperforms the original one.

On the grassland highway, the driver is prone to muscle fatigue because of the particularity of its landscape and the linear structure. And vehicle operating system leads to different degree of muscle fatigue. In order to explore the pilot fatigue characteristics in grassland under different operation conversion highway, put forward the fatigue improve measures and improving the quality of driving, I use the real driving test. In this paper, we study the manual and automatic driver’s shoulder muscle fatigue with method of frequency domain analysis through testing the driver, obtaining MF of trapezius muscle in static measurement and the surface electronical signal of the trapezius muscle after 110 minutes’ driving. We devide the drivers into 2 groups (5 drivers in manual group, 5 drivers in automatic group). The results show that the automatic driver’s MF has significantly negative correlation (P =- 0.521) before and after the static test, which suggests automatic driver will be afflicted with shoulder muscle fatigue; The manual drive’s MF before and after the test tends to decrease with time (SlopeMS =- 0.0076, SlopeMD =- 0.0582), which suggests that after test, drivers in manual group are in the right shoulder fatigue, and before test, the decline of MF shows the drivers’ fatigue accumulation. After test, MF of manual and automatic group increases (SlopeAD =- 0.01, SlopeMD =- 0.058), which shows that driving on grassland highway can lead to the driver’s muscle fatigue with the extension of time; and vehicle operating system leads to different degree of muscle fatigue.

Failure of steam-side oxide scales in high temperature components of boilers such as superheater and reheater tubes has significant effect on the safety of thermal power plants. Finite element analysis is carried out to investigate the failure issues of steam-side oxide scales in boiler tubes during thermal shock processes. The effects of different steam temperature variation durations on oxide scale failure issues have been analyzed. According to the results, appropriately lengthening variation duration can contribute to relieving oxide scale failure issues, and are subsequently proposed.

Based on Hilbert-Huang Transform (HHT) theory, we present a method to analyze the electroencephalogram (EEG) signal of right and left hand motor imagery. Firstly, EMD method decomposed EEG signal into a group of intrinsic mode functions (IMFs). The first three IMFs were extracted to denoise. We adopt endpoint Mirror Extension method to relieve the influence on subsequent processing brought by endpoint effect. According to the Hilbert transform, we can obtain the time-frequency distribution. The energy of the first three components is selected as the input of SVM. The results show that EMD is an efficient method to analyze the EEG signal. The proposed method obtains an ideal recognition rate.

This thesis researches on the process of the tourism at home and abroad, and selects Com GIS as the combination of tourism industry and informationization. Based on the tourist market, this thesis takes the task of developing the tourism information system, based on the analysis and the design of the GIS characteristic, the development structure, the system database, the system function, takes the Com GIS software Super Map Objects as platform, takes SQL Server 2000 as the database, has realized system's integration with the Visual Basic, realized multimedia query, buffer analysis, overlay analysis, the optimal path and other functions. This thesis has conducted the exploring research about development of tourism information system, has certain reference to the tourism information construction, and provides comprehensively, accurate traveling information service for tourist, also provides the powerful technical support for tourist resource's scientific management and decision-making.

The new era brought us a convenient communication. The fragment-timed learning can help many learners. The platform uses the SOA architecture. The learners of fragment-timed can get information through the mobile phone, and SMS can send the platform short content for the fanciers of Chinese language and culture. The smart mobile devices on the popular portable (such as mobile phone, tablet computer, etc). The essence Chinese culture can be tough through blog, Micro message, QQ, SKYPE, FACEBOOK, MSN, etc.

Systematic research on monomolecular layer of symmetrically substituted copper (II) phthalocyanine (CuPc) derivatives bas been done. An attention is focused upon final determination of the transfer pressure in an ordered nanoassembly film of CuPc by comparing different methods about surface pressure-area (-A) isotherm, morphology observation and thickness measurement by transmission electron microscopy (TEM) . The present study and improvement methods provide new insight into the choice of transfer pressure for mono molecule layer .

The basic mechanical properties and penetration performance of a new type of fiber concrete reinforced by UHMWPE fiber were experimental investigated. The strengths of the cube compression, splitting tensile and beam bending of this FRC with four kinds of fiber volume fraction (FVF) was researched firstly. Then, the penetration tests for the FRC with FVF of 0.8% were then conducted. The results show that the UHMWPE fiber is of excellent effects to improve the tension strength and toughness of concrete. The penetration depth and cratering area of the FRC by bullet penetration are decreased obviously compared with plain concrete which testifies the remarkable effect of this kind of fiber on enhancing penetration resistance of concrete. Last but not least, the application prospect and field of UFRC were discussed.

For carbon dioxide capture and geologic storage to be deployed commercially and in a widespread manner will require well thought out economic feasibility. As one of the main coalbed methane resource reservoirs of China, Qinshui Basin is being widely technical studied about how to enhance coalbed methane recovery by CO2 injection (CO2-ECBM). In this study, an economic feasibility evaluation is presented to discuss economy to the CO2-ECBM, and how to choose the best exploit scheme. Two exploiting schemes were compared. The evaluation results show the exploit scheme that the CO2 storage potential is designed 1.5 Mt/year, the well configuration pattern is 5-spot 160 ac, and the exploited area is 194 km2 is a better choice. The sensitivity analysis results show the profit is the most sensitive parameter, which reminds us should strictly control this uncertainty. The CO2-ECBM project has a strong robustness, and the Qinshui Basin has a further CO2-ECBM prospect from economical view.

This paper presents a method for calculating the fatigue life of helicopter composite material blade with residual strength theory. Builded the residual strength model, analyzed the influence of loading sequence, tensile -- compressed between the conversion and failure probability, adopt corresponding treatment plan. Using the model of residual strength, selected 19 typical flight condition, using the "rain flow counting method" load matrix, finally get the helicopter load spectrum. The composite blade dangerous section are calculated (root maximum strain), combined with every moment and centrifugal force, the flight state determined blade the stress spectrum, then according to the blade model and material characteristic parameters were calculated, results show that the residual strength decreases with the increase of flight time, and the failure probability increased with the flight time increasing. By comparison, the calculation results and full size is consistent with the experimental results, which shows the calculation is reliable.

Hypersonic aircrafts are facing increasingly severe aerodynamic heating, noise and so on, which will lead to nonlinear vibration characteristics for thin-walled structures of hypersonic aircrafts. Considering the influence of thermo-acoustic loadings, finite element formulation of simply supported plate under combined thermo-acoustic loadings are founded, and vibration characteristics of simply supported plate under thermal loadings with temperature gradient and random acoustic loadings are investigated. According to finite element numerical method, modal frequencies, critical thermal buckling temperature difference, dynamic stress response of simply supported plates with temperature gradient under combined thermo-acoustic loadings were calculated before and after thermal buckling. The results show that three types of motion: random vibrations around initial equilibrium position in pre-buckling region, snap-through oscillations between two post-buckling equilibrium positions, nonlinear vibrations around one of the two post-buckling equilibrium position, and The RMS of nodes for different locations of the simply plate are obtained in pre-buckling post-buckling region, and it is shown that different interaction of tensile bend stress, compressive stress and compressive thermal stress lead to different RMS trends.

Precious metals are used widely in electronic industry because of their excellent heat resistance, corrosion resistance and catalytic property. Therefore it is important to recycle precious metals from E-waste. In this study, a new amid extractant N,N-Dimethyl-N,N-didecyl-3-thiopentanediamide (MDTDGA) was firstly synthesized through N-alkylated and N-acylation reaction. The extraction behavior of precious metals with MDTDGA in 80% dodecane-20% 2-ethylhexanol from hydrochloric acid was studied. The extraction ration increases with HCl concentration and extractant concentration, but it is not influenced by H+ concentration. It is indicated that the extraction of precious metals Pd (II), Pt (IV), Au (III) with MDTDGA is neutral coordination. High extraction efficiency of Au (III) of 99.5% using MDTDGA was obtained.

The 1,7-dioxadispiro [5.1.5.-pentadecane spirocyclic architecture is the main structural feature in the aculeatins which attracted scientists interesting for the remarkably high cytotoxicity, anti-bacterial and anti-protozoal activities. A prophase study on concise synthesis of the core 1,7-dioxadispiro [5.1.5.-pentadecane spirocyclic architecture of aculeatins was accomplished by using Mukaiyama aldol reaction.

A highly convergent formal synthesis of Ieodomycins A and B was achieved in 7 steps. The key features involved in the synthetic sequence of Ieodomycins A and B are the Sharpless asymmetric epoxidation and the Mukaiyama aldol reaction[. The synthesis of C-3 epimer of Ieodomycins A and B was also accomplished in good yields, but now just Heptyl diene aldehyde was getted thought 4 steps. Use Geraniol as meterials to make the corresponding aldehyde (1) via Swern oxidation. Though epoxidation, Wittig reaction and HIO4oxidation to get the intermediate . Useing it though few steps, the target molecule can be getted.

Hamiltonian matrices have many applications to design automation and autocontrol, in particular in the linear-quadratic autocontrol problem. This paper studies the inverse problems of generalized Hamiltonian matrices for matrix equations. By real representation of complex matrix, we give the necessary and sufficient conditions for the existence of a Hermitian generalized Hamiltonian solutions to the matrix equations, and then derive the representation of the general solutions.

Master production scheduling plays an important role in planning levels. The scheduling without coordination will lead to an unsatisfied result. In this paper, the master production scheduling model based on bargaining game between buyer and vendor is established to realize integrated management. The improved solution of Nash equilibrium is achieved by the bargaining game. The simulation results verified the model and algorithms effectiveness.

Iron and steel production scheduling problems are different from general production scheduling in machine industry. They have to meet special demands of steel production process. The CCR production manner dramatically promotes the revolution in technology and management, especially to planning and scheduling. In this paper, a scheduling model is presented to integrate the three working procedures and the lagrangian relaxation technology is proposed to get the optimal solution of the scheduling model. Finally, numerical examples are given to demonstrate the effectiveness of the integrated model and method.

With the development of environment-friendly cutting technology, the low-temperature MQL technology emerged. In order to solve the problem that caused by cutting heat, it adds the cold air on the foundation of MQL. In the view of low-temperature MQL studies which could reduce the cutting force and heat, we have done a lot of experiments. The experimental results show that the most important reason why the low-temperature MQL can reduce the cutting force effectively is a reliable lubricant film that between tool and chip. At the same time, the cold air take away a large amount of heat thereby is reducing the temperature of the tool, so that extending the tools service life.

The behavior of hydrogen absorption in the NdFeB Hydrogen Decrepitation process is affected by the shape of the NdFeB alloy, pressure and temperature curves of the reaction process, which makes the reaction process with characteristics of nonlinear, time-varying parameters and coupling. In this study, we proposed a state space modeling method to describe the dynamic mechanism model of the hydrogen decrepitation process, and determine the main parameters of the model according to the mass balance, energy balance and kinetic equations. Then implemented the simulation model of the hydrogen absorption dynamic mechanism model using the matlab language. The simulation results were compared with the measured data, which verified the correctness of the model.

The article proposes the methods to construct the commercial age of enterprises in eco-industrial parks by taking the concept of commercial age as a starting point. With Xishan Eco-industrial Park as an example, it also carries out an empirical study by selecting three enterprises from each of the three representative industries. The research results show that the enterprise age as a representative indicator reflects the characteristics of the development of eco-industrial parks and the changes of the eco-industrial structures. In this way, it will provide theoretical and practical guidance for reasonable construction of commercial age structure while maintaining the industry chain of eco-industrial park and the industrial ecosystem stability.

Three-dimensional (3D) mesoporous bioactive glass (MBG) scaffolds were obtained by using the demineralized bone matrix (DBM) and P123 as co-templates through a dip-coating method followed by evaporation induced self-assembly (EISA) process. 3D mesoporous bioactive glass-silk fibroin (MBG/SF) composite scaffolds were prepared by immersing MBG scaffolds into SF solutions with different concentration. Transmission electron microscopy (TEM), field mission scanning electron microscope (FESEM), fourier transform infrared spectroscopy (FT-IR) and wide angle X-ray diffraction (WA-XRD) were used to analyze the inner pore structures, pore sizes, morphologies and composition of the scaffolds. The in vitro bioactivity of the scaffolds was evaluated by soaking in simulated body fluid (SBF). The results showed that the MBG and MBG/SF composite scaffolds with the interconnected macroporous network and mesoporous walls could be obtained by this method. In addition, both the MBG scaffolds and the MBG/SF composite scaffolds have excellent apatite-forming bioactivity. Therefore, this method provides a simple way to prepare scaffolds for bone tissue engineering.

Improper design of grasslands highway curve is an important cause of accident, which research on is not mature. Drivers are the main body of grasslands highway traffic man-machine environment system. The paper aims at four sections of highway curve, using frequency domain analysis and grey correlation analysis method to study the relationship between driver’s HFnorm, LH/HF and the highway curves. Results indicate that it can not distinguish the effects of driver's sympathetic nerve, vagus nerve and the balance between them caused by different curves in statistical terms. In the monotonous landscape grasslands, increasing some curves of different radii appropriately in highway alignment design can relieve driver’s fatigue to a certain extent. Diversification of grasslands highway curve has a less influence on parasympathetic nerve of young drivers with long driving experience than that of old drivers with long driving experience. To ensure the driver’s autonomic nerve activity being at a reasonable state, it is more perfect to design grasslands highway horizontal and vertical curves combined with driver’s LF/HF indexes, and profile grade with driver’s HFnorm and LH/HF indexes. The results can offer part of theoretical support for thorough study on humanity of grasslands highway alignment.

Supported liquid membrane is established by using 2-Ethylhexylphosphoric acid mono-2-ethylhexyl ester as carrier, kerosene as membrane solvent and Polyvinylidene fluoride membrane as matrix. This article analyzes the effects of Cu (II) concentration, migration time, carrier concentration and feed solution pH for the rate of migration by means of monofactor experiments to obtain the optimum experimental conditions. The results indicate that the migration rate of Cu (II) with the optimical conditions as following: Cu (II) concentration at 4×10-4mol/L, migration time at 120min, carrier concentration at 7% and feed solution pH at 5.0, attains to 83.5%, which is the optimum value of Cu (II) migration.

The nonlinear analysis of HRV index can effectively evaluate the drivers mental and physiological stress reaction during driving. By collecting drivers ECG signal on the Prairie Highway and based on nonlinear analysis of HRV, it is found the drivers Correlation Dimension (D2) changes significantly and has a strong negative correlation with driving time, and the regression model under the Prairie Highway environment has been built in this paper. Combining the difference test between the dynamic and static index, the study has concluded drivers sympathetic nerve activity decrease after continuous driving for 30min, and D2 is 2.034-2.593 after 110min.The complexity of drivers autonomic nervous system and the adjust ability of adapting to the environment decrease significantly on the Prairie Highway. These will offer the theoretical basis for monitoring driver fatigue and designing Prairie Highway.

The traditional channel estimation method in the communication system is based on the multipath channel intensive assume, lead to the spectrum utilization is low, compressed sensing theory provides a new way to solve this problem. The basic theory of compressed sensing is introduced, the feasibility of compressed sensing applied to channel estimation is explored, a detailed analysis several reconstruction algorithm of the compressed sensing channel estimation technologies: MP algorithm, OMP algorithm, CoSaMP. Studies have shown that fewer pilot signal channel estimation method based on compressed sensing theory to achieve the estimated performance comparable to traditional methods, thus improving spectrum efficiency.

The free curve as bus bar has increasing number of application in the field of modern machining .While the Keller was not perfect which was found in more and more production practice, in particular doesnt draw and machining of freeform curves. In this paper apply stretching step method to get key nodes, then make use of the double-arc method to approach the free curve, using Visual Basic to preparation of the supporting software, to generate DXF file that can be recognized by Keller, and then achieve the purpose that increasing the ability of free surface processing.

How to dispose of herbal residues during the Chinese herbal medicine production and processing has become a problem that can not be ignored. This paper summarizes the way of reuse herbal residues in China, and discusses existing problem. Moreover, its suggested that Chinese Medicine enterprises should take road of sustainable development by rational utilization of herbal residues.

This study focuses on the analysis of algae growth when nitrogen is enough and phosphorus is different though the method of enclosure experiments. and to determine the influence of phosphorus for algae population structure. The results showed that the optimum value for algae grew isρp=0.14mg·L-1in the different phosphorus concentrations, and algae grew better at phosphorus concentration more than 0.14mg·L-1than less than it. Community structure of phytoplankton has a little change between the experiments.The dominance of diatom is much larger than that of other phylum.The phosphorus can influence algae growth but has little effect on phytoplankton succession.A further research about the reason of phytoplankton succession in Xiangxi bay is needed.

According to the needs of the factory testing of PV installations, an adjustable resistive test load is builded. The load is controlled by the PLC system, a resistive load of 16 groups constitute the main circuit, combined with signal detection and acquisition, display and protection features such as aspects of composition. The prototype experiments show that the test load according to the volume of the output voltage of the PV installations automatically adjust the size of the load, to achieve effective accordance between load requirement power and output power of the PV installations , the performance indicators meet the test requirements.

In this paper, the basic principles of the surface acoustic wave (SAW) formed in the periodically poled piezoelectric ceramic has been elaborated theoretically. The modal and harmonic analyses has been performed by utilizing ANSYS software for the periodically poled piezoelectric composite structure (adjacent piezoelectric polarization direction opposite) which composed by piezoelectric ceramic (PZT-4). The data of simulation result have been processed and obtained the following conclusion: the surface wave can be formed in the periodically poled piezoelectric domain with a relatively large amplitude, the motion track of each particle in the SAW is an ellipse by combined the transverse modal displacement and longitudinal modal displacement of each surface node. These conclusions are same as the theoretical values, the simulation results are very useful for designing SAW device with periodically poled piezoelectric ceramic.

More and more research works have been focused on the quadruped walking robot because of its flexibility for the dangerous and complex environment. The Straight and turning gaits of a quadruped robot (JQRI00) were planned by the principle of stability margin. The virtual prototype model of the JQRI00 was constructed, and the results of the simulation and analysis of the designed gaits using ADAMS simulation software indicate that the straight and turning gaits are feasible. Moreover, the S-curve used as displacement control makes the robot more stable.

In this study, pressure drop across a novel CFB riser integrated with an enlarged bottom section was investigated under various operating conditions. Experimental results indicated that total pressure drop was much higher across the riser with larger diameter-enlarged section dimensions, consequently, resulting in lower solids circulation rate realizable in the riser. Based on the measured pressure drop across this novel riser, apparent solids concentrations of the diameter-enlarged section and the conveying section were obtained. Furthermore, empirical correlations for estimating overall average solids concentration in these two sections were established, respectively. And a satisfactory agreement between predictions and experimental results was observed.

The silicone rubber composites filled with various contents of alumina (Al2O3) microparticles were prepared by the solution mixing process. The fractured surface morphology, thermal diffusivity and dielectric property of the composites were investigated by scanning electron microscopy (SEM), the laser flash thermal diffusivity analyzer, a LCR digital meter and a resistor tester, respectively. The results show that with Al2O3 content increasing from 8 vol. % to 35 vol. %, the thermal diffusivity increases from 0.13 mm2/s to 0.31 mm2/s, while the dielectric property reduces slightly. At a given Al2O3 content, the thermal diffusivity of the composites exhibits a reduction tendency with the increasing temperature. The Nielsen model is generally suitable to predict the thermal diffusivity of the composites.

The monocarboxyphenyl cobalt porphyrin (CoMCPP) was synthesized and incorporated into carbon carrier acetylene black (ACET) for proton exchange membrane fuel cell cathode oxygen reduction. The influence of different thermal treatment temperature on the catalytic performance of the composite catalysts was discussed. The synthetic compound catalyst was analyzed by XRD、IR. The electrochemical catalytic performance of catalyst, which was heat-treated under different temperature, for oxygen reduction was tested by linear sweep voltammetry (LSV). The result shows that the best thermal treatment temperature is 6000C, and its catalytic activity also shows the best, the catalytic activity site changes from CoN4 to C-N-Co.

According to the frequency distribution approach of Nutrition Criteria Technical Guidance Manual of U.S. EPA, we calculated eco-criteria of Tai Lake and Liao River in China by observing data. The results show that: ① Phytoplankton H is 2.81, phytoplankton D is 2.03, zooplankton H is 3.16 and zooplankton D is 7.70 in Tai Lake. ② Phytoplankton H is 3.04, phytoplankton D is 2.66, the zooplankton H is 3.46 and zooplankton D is 5.15 in Liao River. The results show that the eco-criteria by frequency distribution approach is feasible and correct.

Aircraft basic performance is the foundation of the research on aircraft, which is characterized by many parameters. According to the example of the shortest rising time spent on flying from an altitude to another arbitrary one, and the example of matching control of joystick and throttle lever, it is demonstrated that the visualization in scientific computing method is useful for promoting engineering research.

The analysis process for the linear coupled vibration of a circular container and its inner liquid often uses FEM method. An equation set which contained the fluid node pressure and the structure node displacement was formed, based on these equations, in this paper, a new equation set which has a smaller dimension and symmetrical form is obtained by the method of model reduction and coordinate symmetrization. By solving the boundary value problems of equivalent Laplace formulas, the additional masses matrix, additional stiffness matrix and coupling matrix which have effect from fluid to structure are gained. The example of the modal analysis for liquid container demonstrates that this method presented in this paper can get the modal frequency accurately and rapidly in fluid-structure coupled vibration system and other similar engineering realm.

A new one-dimensional [CuC16H18N4O4S]n(1) was synthesized by the self-assembly of a ligand 2,5-thiophenediformates, 3,5-dimethylpyrazole and copper(II), and characterized by elemental analysis, IR and single-crystal X-ray diffraction. 1 crystallizes in monoclinic, space group C2/c with unit cell parameters, a=18.6156(4), b=5.96110(10), c= 18.1598(4)Å, =115.467(2)°, Z=4, V=1819.37(7)Å3, Mr = 425.94, Dc = 1.555g/cm3, μ=1.345mm-1, and F(000)= 876. The final R and wR are 0.0328 and 0.0816 for 7611 observed reflections with I>2σ(I). 1 shows an infinite 1-D polymeric chain structure based on the repeated basic units Cu(II)(3,5-dimethylpyrazole)2(2,5-thiophene diformate). The Cu(II)center acts as the joint of the unit, and is coordinated in a slightly distorted octahedral geometry comprised of four O atoms from two different 2,5-thiophenediformate ligands and two N atoms of two trans 3,5-dimethylpyrazole ligands.

The optimal design approach of the PID controller was proposed in this paper, based on Artificial Fish Swarm Algorithm (AFSA) for the matter of the optimization of the brushless DC motor controller. In the experiment, through the analysis of the basic principles of artificial fish swarm algorithm, appropriate performance index was selected as fitness function, specific design procedures were given to optimize parameters of PID controller, The experimental results indicate that: Artificial Fish Swarm Algorithm optimized PID controller enables the brushless DC motor speed control system response faster, small overshoot, effectively improve the dynamic performance of a brushless DC motor control system.

An intelligent orientation online help based on Web was design and implement to quickly and accurate orientation help information of user need. The operating principle and implementing process mechanism of online help is described in detail. The mechanism build one-to-one mapping relation of function interface and help document by not change application system, the help information of user need was orientated automation, quickly and accurate by one key. This could economize query time of user and reach the aim of intelligent and efficiency.

We reported the preparation of surface modified poly (ethylene oxide terephthalate) - poly (butylene terephthalate) membrane by the method of silk fibroin anchoring, namely SF/(PEOT/PBT). Its surface properties were characterized by contact angles and XPS and the biocompatibility of the composite membrane was further evaluated by human salivary epithelial cells (HSG cells) growth in vitro. Results revealed that SF/(PEOT/PBT) possessed the low water contact angle (48.0±3.0°) and immobilized a great amount of fibroin (fibroin surface coverage: 26.39 wt%), which attributed to the formation of polar groups such as hydrosulfide group, sulfonic group, carboxyl and carbonyl ones in the process of SO2 plasma treatment. HSG cells growth in vitro indicated that the silk fibroin anchoring could significantly enhance the biocompatibility of PEOT/PBT membrane, which suggested the potential application of fibroin anchoring PEOT/PBT for clinical HSG cells transplantation in the artificial salivary gland construct.

This paper maily studied the characteristics of silt flocculation of Yellow River. Chemistry and phiscal test methods were used to analyze the effects of silt concentration on settling velocity. The flocculation efficiency of PAM and PAC were compared in this work. Effects of silt concentration on needed PAM dosages and the optimal dosage of PAM at different silt concentration were discussed. Compound flocculants were also being studied. Research in this work has important practical value in the high turbidity water treatment technology for Yellow River and other rivers.

To remedy polluted soil, EDTA is choosen when seeing metal Pb (Ⅱ) as target pollutant. There has been a focus on discussion about the infuencs of liquid-solid ratio, EDTA concentration and extraction time on Pb (Ⅱ) extraction rate. And attention is being paid to study the effect of Na2S concentration and pH on Pb (Ⅱ) removal rate with Na2S as EDTA regeneration medium. The results obtained demonstrate that when the liquid-solid ratio is 10, EDTA concentration is 0.5 mol/L, extraction time is 24 h, extraction efficiency can reach 66.67 %. When the concentration of Na2S is 0.5 mol/L, pH is 10, the 96.67 % Pb (Ⅱ) removal rate can be achieved.

The energy-efficient production of fuel ethanol though fixed-bed absorption by use of cassava absorbent was studied. The cassava absorbent was desiccated to absorb the water in the ethanol, making its quality score from 75%~95% up to 99.5%.The absorption performance of cassava power was investigated from the aspects of power size ,quality ratio of absorbent and solution, temperature of absorption and the ratio of airflow. The analysis of the result indicated that the best technological parameter for the above method were as follows: particle size was between 1.6mm and 2.5mm,quality ratio of absorbent and solution was equal to1:6, temperature of absorption was 90°C and the ratio of airflow was 105°C on the characterized temperature.

The analysis processing for the linear coupled vibration of a flume and its inner fluid often uses FEM method. An equation set which contained the fluid node pressure and the structure node displacement is formed, based on this equation, reduction form and symmetry form is used to get the same modal frequency. Computers can calculate out the frequency more rapidly by a smaller control equation. According to the frequency comparison of different fluid-structure coupled vibration system with different materials, this paper draws some conclusions on the influence of material properties on modal characteristics for fluid-structure coupled vibration system. It can give a reference to select the material in practical engineer.

The finish machining test is using the ultrasonic vibration turning, and a lot of experimental researches have done on the factors which influence the finishing surface roughness, It is determined a reasonable cutting parameters by comparing test and orthogonal test, analyzed some of the factors which influence the surface quality, and made a test analysis and verification for promoting the use of finishing technology of ultrasonic vibration turning, and in the same time analyzes the superiority and regularity of finish machining technology using ultrasonic turning.