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Traction transformers areheavy and suffering dynamic load all the time when the train is starting,stopping and moving. These load cases make it necessary to design tractiontransformers in fatigue resistance view. In this paper, random vibrationsimulation is done for traction transformer with finite element method. ThisFEM result is used for fatigue analysis. Several methods of damage accumulationfor random vibration are discussed and compared with test result. Result showssingle moment method is a better choice for traction transformers.

After new transportation projects putting into use,traffic volume within transportation network will inevitably transfer between different routes,this urges us to conduct transfer traffic volume forecast and project evaluation.The study forecast overall traffic volume of Weihai city in the future based on the platform of TransCAD,firstly establish traffic network GIS map,calibrate network attributes,and ascertain many parameters of traffic distribution model.Apply OD estimation to get reasonable OD matrix of Weihai city.Then use the transfer traffic volume forecast model based on prospect theory to forecast and analysis the transfer traffic volume from south bus station to north bus station.It confirmed the necessity of constructing north bus station.

In order to reduce peak to average power ratio (PAPR) higher of OFDMA problems, this paper proposes a power line communication system based on SC-FDMA model, compared this model and OFDMA system on peak to average, the same power with the throughput, the same throughput required simulation sub carrier number of needed power and power rate users; The results show that: when introduced the SC-FDMA into the power line communication, can effectively reduce the system PAPR, the terminal can obtain better emission efficiency.

K-Means algorithm is a one of the most famous unsupervised clustering algorithm. It has many disadvantages, such as sensitivity to the initial clustering centers and computes all the data points multiple times when facing the increasing data volume. In order to overcome the above limitations, this paper proposes to make use of density idea to find k cluster centers by adjusting the threshold. Finally, we design and implementation of the K-Means algorithm on the modern Graphic Processing Unit (GPU). The ratio of distance between classes to distance within classes and speedup are used as evaluation criteria. The experiments indicate that the proposed algorithm significantly improves the stability and efficiency of K-Means algorithm.

Due to the special demand of energy control and balancing the energy of nodes in wireless sensor networks，multipath routing based on ant colony system(MACS)was proposed. The algorithm utilizes the self-organization，self-adaptability and dynamic optimization capabilities of the ant colony to find the optimal routing and suboptimal routing from sources to Sink．Simulation results show the algorithm balances energy consumption of nodes and extends network lifetime effectively．

In this paper, a nonnegative tri-Matrix factorization (NTMF) algorithm is proposed for underdetermined blind sources separation with the assumption of that the source signals are nonnegative and sparse. By incorporating the regularization and sparse penalty into the cost function, a novel multiplicative update rules is proposed to solve the problem of UBSS based on NTMF. The simulation results are presented to show the validity and competitive performances of the proposed algorithm.

This paper proposed an automatic transformation technical solution for behavior control scripting languages. The solution automatically converts VBA scripting language into JavaScript scripting language. It implements automatic transformation by analyzing and comparing differences in the use of different grammatical of VBA scripts and JavaScript scripts such as data types, control structures, form controls and add-ins Etc. To ensure the accuracy and completeness of conversion the solution generates an abstract syntax tree which represents call and transitive relation between functions. Compared with the conversion tools the solution can reduce repeated manpower and improve productivity.

A real-time data transferring method is opened to public for data transferring problem by different security region and different database in electric system. Interface service routine (ISR) is used for data obtaining, transferring format, analyzing and committing. Transit service routine (TSR) is used for data file transmitting and reducing the pressure of the ISR. E form file is used as a carrier to transmitting data file with transmitting tool of the segregate instrument. The method brings about data transferring in an on line, security and stabilized way, and makes certain the existing production system normal and steady working.

This paper follows the personal information and constitution, the right basic of personal protection, personal information protection status in our country and the logic of that constitution protects personal information sequentially, and then the approach adoption and basic idea of our citizen personal information protection are raised in the constitutional vision. The legal right measure is confirmed as the most basic principles of legislation, enforcement and judicial protection act by using right analysis method. Researched that the standards is citizen personal information act logic which is protected by country are power and balance of rights.

Given the number of assembly workstations, how to generate the corresponding assembly system configurations? The issue is studied in this paper.The size of the assembly workstations is divided into small-scale workstation, medium-scale workstation, and large-scale workstation. Due to limitations on space, this paper only studies the small-scale assembly system configurations theoretically, and the corresponding example is elaborated.

The effects of the impact energy on the impact damage of CFRP laminates were studied in this paper. Impact tests for the CFRP laminates with the size of 600 mm×700 mm were subjected to different the impact energy levels from 5 J to 50 J. The matrix length was investigated according to different energy levels. The experimental results reveal that the crack length increases linearly with the increasing impact energy. The impact damage of CFRP laminates tends to be more severe as impact energy increases, and the impact area and crater depth increases with increasing impact energy. The surface of impact dent of specimen looks like W shape.

Optimization of chromium sulfate catalyzed conversion conditions of xylose into furfural was studied by response surfacemethodology (RSM). A central composite design (CCD) was used to determine the effects of independent variables, including temperature (120-160°C), time (30-150min), catalyst loading (1-5mmol) and moles of xylose (2.5-12.5mmol) on furfural yield, xylose conversion and solid residue. The surface response analysis revealed that temperature, time, catalyst loading and moles of xylose had a strong influence on the furfural yield, whereas moles of xylose was found to be notsignificant for xylose conversion. The solid residue was affected by temperature, time and moles of xylose. The maximumpredicted furfural yield was 45.07% at temperature of 150°C, time of 12min, catalyst loading of 2 mmol and moles of xylose of 10mmol. Under this condition, xylose conversion could be reached 100%.

The performances of leaching-upflow blanket filter (UBF) anaerobic digestion for biogas production of kitchen waste was investigated. To find out the process parameter variations of acidification phase and the methane production performance of methanogenic phase, kitchen waste from division of environment sanitation management of Changzhou was used as feedstock. The results show that the ammonia in anaerobic system cumulated continuously throughout the digestion; pH value maintained at7.6; At first the value of COD ranged from 20000 mg/L to 140000 mg/L to the final UBF water 10000mg/L to 12000 mg/L; Volatile fatty acid (VFA) reduced to 150mg/L with the increase of the days; total nitrogen increases first and then decreases, finally, it keeps at 1600 mg/L; The concentration of alkalinity increased slightly; biogas production is stable, The rate of gas generation is above0.30 m3/kgCOD . These results provide a proof of the feasibility for kitchen waste anaerobic methane fermentation.

Usually, the screw is placed in rotary kiln for calcination of selenium dioxide, so that the materials can be evenly conveyed in the rotary kiln. Through the software of Solid Edge, the geometric model could be established. The materials in the cylinder were regarded as the discrete particles. Then geometric model was imported into the EDEM and the particles movement simulation has been done. Without considering the floating of the screw in the cylinder, linear rotation speed of the cylinder and screw could be set. Through the simulation and analysis, the relative particles movement charts can be obtained. It provides certain reference value to the rotary kiln designing and the research of particles' axial movement in rotary kiln.

The synthesis of Lignin Base Epoxy Resin was based on industrial alkali lignin, and lignin-based epoxy resin curing characteristics were analyzed using the thermal weight loss technology under the oxygen atmosphere conditions. In light of the infra-red analysis of raw materials, the curing reaction kinetic parameters of lignin-based epoxy resin system were calculated using the Kissinger-Crane and Flynn-Wall-Ozawa method, and the curing reaction kinetics model of lignin-based epoxy resin system was established. The results showed that the kinetic parameters obtained using two methods were approximate, which validated that the curing reaction was consistent with the principle of the first-order reaction model. Initial curing temperature Ti0=454.88 K, curing temperature Tp0=507.55 K, and terminal temperature Tf0=598.77 K of lignin-based epoxy resin system were obtained when the extrapolation method was applied.

Chemical polishing of Q235 steel workpiece using H2O2as oxidant in chemical polishing solution was studied. The effects of quantity of components such as brightening agent, corrosion inhibitor, and stabilizer as well as the polishing time and polishing temperature were investigated. The optimized composition of the chemical polishing solution and process condition were obtained as follows: 14mL of H2O2(30%), 2mL of H2SO4 (98%), 10g of citric acid, 3.5g of urea, 2g of PEG 6000, and water added to 1000mL , polishing time at room temperature was 90~130s.

As increasing data have been collected in many applications, we have to face with millions of data in record linkage. With respect to traditional methods, there comes out a big challenge in performance while dealing with massive data. Parallel computing framework, such as MapReduce, has become an efficient and practical way to address this problem. In this paper, we propose a practical 3-phase MapReduce approach that fulfills blocking, filtering, and linking in 3 consecutive processes on Hadoop cluster. Experiments show that our approach functions efficiently and effectively with keeping high recall in contrast to tradition method.

A novel digital holographic interferometry used for measuring the 3D shape is proposed. The theory analysis and simulation of multi-angle interferometry are described. General holographic interferometry are not able to measure the discontinuous object because of the phase unwrapping. However, in this method, holographic interferograms are generated by object beam and reference beam with different incident angles. Height information of every point at the object surface is extracted independently without the phase unwrapping. The results of simulation demonstrate that this method can be used for measuring the complicated and discontinuous object. It will be useful for the measuring the large and complex discontinuous surfaces often exist in mechanical machining.

CMP is commonly recognized to be the most effective technique of achieving global planarization. SiO2 and CeO2 abrasives are the most commonly used in CMP slurries due to their good polish performance. To consider respectiveSubscript text advantages and synergistic effect, preparation of SiO2/CeO2 composite nanoparticles with core/shell structure have become a hot topic in CMP field. We introduced the preparation technology of SiO2/CeO2 and their applications in CMP in recent years.

The flow behavior of Al-Zn-Mg-Sc-Zr alloy during hot compression deformation was studied by thermal simulation test at strain rate of 0.001 to 10s-1 and deformation temperature of 340 to 500°C on the Gleeble-1500 thermal mechanical simulator. The results show that the flow stress increases with increasing strain rate, and decreases with increasing deformation temperature. The flow stress of the alloy during the elevated temperature deformation can be represented by a Zener-Hollomon parameter with the inclusion of the Arrhenius term. The values of A, n, α in the analytical expression of flow stress are fitted to be 1.49×1010s−1, 7.504 and 0.0114MPa−1, respectively. The hot deformation activation energy of the alloy during hot deformation is 150.25kJ/mol.

To explore the deposition mechanism of check dam and provide the basis for layout of dam system, with tracing technology of caesium-137 and local rainfall data, the siltation time of each cyclic in the profile of south ditch check dam are confirmed based on the rule of heavy rain on large sand. Then regression analysis of sediment volume with the four indexes of erosive rainfall (R, I30, P and I) are made, the results show the first three indicators are main factors causing soil erosion. Furthermore, the model predicting sediment yield of the watershed is made by multiple regression analysis of sediment deposition with the three main factors. Finally, the neural network of RBF and BP are respectively applied regarding the three main indexes as input vectors to predict siltation and fit with actual value to testify what the model built is right.

By using imbalance thrust force method, the slope stability factor based on three-dimensional slide block was deduced. According to the borehole data of highway, the TIN data layer and grid data layer for three-dimensional slope stability analysis were carried out by use of ArcMap. The value of each gird cell of different layers are picked up as slide block, it makes convenience in the slope stability analysis. Considering the property of bedding landslide, the three-dimensional slope stability analysis program based on VBA of ArcGIS is put forward in this paper. Taking one of the large rocky landslides as an example, the results of the three-dimensional stability analysis with slope before and after excavation, as well as the different water level conditions are compared. Furthermore, the directive significance of the three-dimensional method in landslide harness engineering was discussed.

A polystyrene-supported 1-(propyl-3-sulfonate)-3-methy-imidazolium hydrosulfate acidic ionic liquid (PS-[SO3H-PMIM][HSO4]) catalyst was prepared by grafting and characterized by FT-IR, SEM/TEM, elements analysis, TG/DSC and acid base titration. It exhibited higher catalytic activity and improved para-selectivity than its homogenous counterpart for the nitration of toluene with 68% nitric acid. The catalytic activity of this catalyst decreased slightly after fifth runs in the synthesis of nitrotoluene.

Concerning the nonuniformity problem when sampling in current single grain moisture on-line inspection devices, this paper designed a new grain sampling device by analysing the physical property parameters of grains. The design of the sampling device is optimized by combining computer mode and physical experiments. In condition of ensuring single grain sampling, fixed the structure parameters of sampling rollers for South grains and North-east grains. The structure parameters of South grain sampling roller groove is length 18mm, width 2.5mm, depth 3mm. The structure parameters of North-east grain sampling roller groove is length 15mm, width 4mm, depth 4mm.

Icons design of oriented system in the Architecture cultural-specific context will certainly become a research focus in the future. This study puts oriented symbolic system into thinking in located spatial context, taking the icons in prohibiting, warning and interpreting system as the cutting point, and applies relevant theories of design semantics and design rectories to study on some European successful cases. Through analyzing on the symbolic design thinking process of each representative case, we try to find the internal logic relationship between symbols and how does these symbols connect with their located contexts. Finally, this paper summarizes and puts forward some effective design techniques on the basis of design semantics.

ZnF2 nano-particles were prepared by electrochemical anodization method at room temperature. Zn foil acted as anode and Pb sheet served as cathode, and the complex solution of NH4F-H2O2-C2H5OH was used as electrolyte. The morphology, composition and crystalline structure of the as-prepared product were characterized by SEM, EDS and XRD techniques. The results showed that the product was rhombic nano-particles with the length of 50-200nm and the width of 50-100nm, the crystalline structure of the product was ZnF2 and ZnO, and the ZnF2 was the dominant component. Effects of NH4F concentration, applied voltage and anodization time on the morphology of the product were investigated.

In the age of intense competition, a universal principle is survival of the fittest. Of course, this principle is also applicable to the development of any enterprise. So, in such social environment, only by continuously reforming to adapt to social development and continuously innovating, enterprises can win end users and improve the overall strength of enterprises. Network marketing, a product of the information age, plays an important role on enhancing enterprise competitiveness.

The Cemented carbide cutting tool is widely used in more machining factory, the 5 types of cemented carbide materials: YT30+Ta, YTS25, YH1, 726 and 758 and Selected to make brazing and cutting test. The experiment results shown that: (a) the hardness of cemented carbide cutting tool after being brazed does not change, redoes HRA0.1~0.2; (b) YT30+Ta, YTS25 types of cemented carbide could be brazed using 105# solder, brazing quality could be very well; (c) Wear characteristic of machine-clamping and brazed cemented carbide cutting tool is normal and hardly change in T

Structure monitoring has been increasingly valuable in recent years and has taken a leading role in the field of structural engineering. Date collected by early age monitoring represent a unique source of information for understanding the real behavior. In this paper, the temperatures evolution and concrete deformation evolution are obtained by real-time continuous monitoring of Reinforcement concrete(RC) wall. The result shows that the early age thermal cracking is one of the most important origin of several phenomena that imperil durability and shorten the lifespan of the structure. Though the wall is not considered as mass concrete, and has a big radiating surface, the maximum temperature can even reach up to 52°C due to heat generation of cement and the insulation of formwork, which can lead to shrinkage deformation when the temperature decreases. The measured experimental date can provide useful reference for early crack control and durability of RC concrete structure, and they can also be use to verify and improve the accuracy of the numerical results for RC wall, which is available in the future for basis to similar projects and research.

Now the coal mine gas risk index and evaluation system has a lot of deficiency. The paper establishes a coal mine gas risk index system and explains the meaning of each index on the basis of analysis of gas accident for recent years. Fuzzy comprehensive evaluation has become an effective and popular method, so the paper evaluates the coal mine gas accident risk using fuzzy mathematical safety evaluation, and takes this method in six mines of one group, at last the paper provides some suggestions for this method

In order to calculate the EMU fatigue calculation of wheels, calculation of fatigue loading to obtain the wheel to solve problems, the method that makes use of multi-body dynamics simulation combined with finite element method is proposed, in time domain the wheel of CHR3 EMU in random loading is conducted the simulation study of the fatigue life. First of all, modal analysis of the wheels and wheel contact analysis are conducted in the ANSYS, and axle contact strength is also analyzed. Second, create a model of the EMU in ADAMS, and simulate to receive dynamic loading process. Finally, combined with the finite element stress method, dynamic loading time history and the linear cumulative damage rule, using ANSYS/WORKBENCH to get the fatigue life prediction chart of the wheel. It can be seen from the results, the safety factor of the most dangerous point of CRH3 EMU wheel type is 1.376, to meet fatigue life requirements, which provide a theoretical basis for the safety maintenance of the EMU.

The application of online detection technology for grain moisture is one of the most effective ways to improve the quality of grain drying. The online detection system for grain moisture consists of three parts: online remote module of ingoing grain moisture (charging), online remote module of outgoing grain moisture (discharging), and the host controller. It adopts JZ873 wireless transparent transmission module to realize the wireless data communication among various modules, and to formulate the communication drive. In practice, this system has characteristics such as flexible use, reliable data transmission, and it is more suitable for those testing and control conditions where it is inconvenient to wiring.

In the design of master-slave surgical robot proper accuracy must be guaranteed. As the configuration of the master robot is generally different from that of the slave robot, the two robots may not use the same policy of accuracy. In order to match each other with sufficient precision analysis of pose errors must be done in pair. This paper presents an approach that can calculate and analyze the end-effecter position and orientation errors of the master-salve surgical robot system. A computer program to perform the accuracy analysis has been developed in MATLAB.

In order to solve the complexity of the power system planning in the low carbon electricity situation, SE-DEA (Super-Efficiency Data Envelopment Analysis) algorithm is firstly applied to the field of program evaluation sequence voltage and described the evaluation process of voltage level sequence. The network size, the total power loss, integrated power supply reliability, cost in investment and integrated area are introduced to improve the distribution network planning of evaluation index system based on the traditional comprehensive evaluation index system and apply this model program by the corresponding calculated, Through comparative analysis the optimal sequence of voltage options, finally verify that the model is reasonable and effective.

Some hydrogen atoms were being charged into metal palladium lattice and reached a certain ratio in a H-Pd gas-loading system under the pressure of PH24 Joules excess energy were released in that abnormal process, which was corresponding to 2.5×102eV for each palladium atom. Analysis on the surface of the melted broken section of palladium wire sample before and after the abnormal process with a scanning electron microscopy (SEM) and an energy dispersive spectrometer (EDS) revealed that new surface topographical features with concentrations of unexpected elements (Ag and Ca) were detected, which implied that the excess heat might come from a nuclear transmutation reaction

Molecular imprinting polymers (MIPs) are synthetic materials having specific cavities which are highly specific towards the template molecule. In this paper, diosgenin-imprinted polymer microspheres (DG-MIPs) were prepared by precipitation polymerization, using diosgenin as template, methacrylic acid as functional monomer and ethyleneglycol dimethacrylate as crosslinker. The morphology and adsorption capacity of the microspheres were evaluated by HPLC and Scanning electron microscopy (SEM). The optimal reaction conditions were as follows: 2 mM DG, 6 mM MMA, 60 mM EGDMA and 4 mM AIBN. The method developed might be used to separate and extract effective constituents from Chinese medicinal plants on a large scale.

This paper describes replacing natural gypsum with FGD gypsum as cement retarder, the influence on the working performance, compressive strength and admixture adaptability of concretes, which were prepared with fly ash cement, slag cement and ordinary Portland cement. The results indict the FGD gypsum instead of natural gypsum used as cement retarder has little difference on the working performance of concrete and additionally the FGD gypsum has no negative influence on the compressive strength and admixture adaptability of concretes.

Compared with natural gypsum, the basic properties of FGD gypsum are studied based on the test results and then the influence of FGD gypsum’s chemical constituents, impurities and particle size distribution on its products is analyzed. The results indicate the impurities play an important role on the FGD gypsum behavior. Finally, the differences between FGD gypsum and natural gypsum are summarized.

In order to investigate the static pressure loss of the maize deep-bed drying related to the ratio of air flux to grain mass, the experiments based on the theory of thermal engineering and deep-bed drying were engaged in. These experiments conducted on the ventilation test stand indicate the relationship between static pressure loss, depth of the bed, ventilative dimensions and the ratio of air flux to grain mass. The investigation results that during the drying, the static pressure loss increases related to the increased ratio of air flux to grain mass with the constant bed depth. The good linear relationship between the static pressure loss and ventilative dimensions was indicated. With the control of the constant ventilative dimensions, the static pressure loss increases related to the decreased ratio of air flux to grain mass and it will dramatically increased when the ratio of air flux to grain mass is small enough. To reduce the static pressure loss, enlarging the ventilative dimensions, reducing the thickness of the drying layer and reducing the speed of the wind will be the proper methods.

The shockproof foam (EPE) was screened out as a cheap and efficient oil-absorbing material in this paper. The influences of the particle size, the time of oil-absorbing, the aperture size of waste plastics, oil slick thickness on the oil-absorbing properties were investigated. The second and third time oil-absorbing capacities were also discussed. The results showed that (a) the best conditions of recovering spilled oil by use of shockproof foam (EPE) were as follows: the size of particle was 5mm, the time of absorption was 15 min, and the thickness of oil layer was more than 2 mm. (b) After appropriate pressing and centrifugal deoiling, the quality of oil-absorbing was effective in second and third time. The saturated oil-absorbing capacity reached to 30g/g. The double control effect was achieved by waste to pollution.

Using a special Test-Bed, the temperature and the grain moisture content variation in different locations was measured continuously, under the condition of maintaining a large temperature difference between two terminals of grain layer. The results show that the temperature gradient can enhance corn-drying process, and there are two modes of the promotion: 1. The temperature difference direct drive the moisture migration; 2. The temperature difference can generate air convection, and accordingly promote the drying rate. However, the speed of moisture migration originated from air convection was much higher than driven by temperature gradient.

In order to ensure the truth and feasibility of constraints during the optimization of suspension parameters, a method, combining gradient optimization with ADAMS, is put forward to optimize the suspension parameters of the truck, which can improve its running comfort and friendliness. Based on the evaluating indicators of ride comfort and road-friendliness, the impacts of suspension parameters on ride comfort and vehicle damage on the road were researched. According to multi-body dynamics theory, a virtual prototype model of the truck is built by ADAMS. The effect of traveling speed, suspension spring stiffness and shock absorber damping on vehicle ride comfort and road friendliness was analyzed. Then the suspension parameters, in favor of ride comfort and road friendliness, were obtained. It is helpful to design the suspension of truck.

This article presents the optimization of process parameters in chitosan-gelatin composite microcarriers preparation based on multi-index test breakdown formula evaluation combined with orthogonal array. In this study, the concentration of crosslinker solution, the concentration of water phase and stirring speed were considered as controllable factors, and three levels for each of these factors were selected, in an L9 orthogonal array. The optimal levels of the process parameters were determined through the range analysis and the relative importance among the process parameters were identified through analysis of variance. According to the evaluations of particle size, morphological analysis, compressibility, and equilibrium swelling from the nine different sets, the optimum combinations for microcarriers preparation were showed as: the concentration of crosslinker solution:0.5% (wt/v), the concentration of water phase:5% (wt/v) and stirring speed:240 rpm.

The Microstructure and creep behavior for NiAl-28Cr-5.5Mo-0.5Hf-0.02wt.%P alloy at high temperature have been investigated in this paper. The results reveal that the high temperature creep behavior of the NiAl-28Cr-5.5Mo-0.5Hf-0.02wt.%P alloy is characterized by transient primary creep and dominant steady-state creep as well as ternary creep behavior. The primary creep can be described by Garofalo equation and the steady-state creep can be depicted by Dorn equation. The creep mechanisms are viscous glide of dislocations at lower and middle testing temperatures and dislocation climb at higher temperature. No change of the microstructure for the testing alloy indicates that the creep fracture is controlled by the formation and propagation of cavities and cracks, and the creep fracture behavior obeys Monk man-Grant relationship.

The oxygen transmission rate (OTR) of SiOx coated polyethylene terephthalate (PET) and biaxially oriented polypropylene (BOPP) affected by fine defects is discussed in this paper. With an ultrasonic AFM (UAFM), which is an advantageous to distinguishing tiny defects on/ in the deposited films, it is found that the OTR of the coated films is relevant to the morphology scanned by UAFM. Herein SiOx layers with a thickness in the order of nano-scale were fabricated in 13.56 MHz-radio frequency (RF) -plasma-enhanced chemical vapor deposition (PECVD). The monomer for the coating fabrication is hexamethyldisiloxane (HMDSO). Fourier transform inferred (FTIR) spectra of the deposited coating with a strong peak at 1062 cm-1, corresponding to Si-O-Si stretching vibration, confirm the formation of SiOx coatings through PECVD. The higher OTR value of SiOx coated PET is consistence with defects on film surface and in the subsurface of coatings through UAFM. It obtains that the OTR value of the defect free SiOx coated film was reduced by ca. 89% compared with the defect existence SiOx coated PET.

This study was aimed to investigate the anti-inflammatory effects of the chitosan/gelatin membrane cross-linked with genipin (GP). Fourier transform infrared spectrophotometry (FT-IR) was used to characterize the cross-linking reaction. The XTT assay was applied to evaluate the cytotoxicity of the chitosan/gelatin membrane with RAW264.7 cells. Production of nitric oxide (NO) was measured by the Griess colorimetric method. The gene expression levels of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and IL-6 were detected by quantitative real-time reverse-transcription polymerase chain reaction (real-time RT-PCR). These results suggested that the anti-inflammatory effects of genipin cross-linked chitosan/gelatin membrane might be the results from modulating the NO/iNOS pathway and inhibiting the mRNA expression of COX-2, IL-6 in activated macrophages.

A study of the modified diatomite prepared by the PAM coated on the surface of the raw diatomite and applied to treat the simulated wastewater with intensive concentration of lead ions [Pb(Ⅱ)]. Pb(Ⅱ) has been considered as one of some significantly toxic heavymetals (Cd,Cr,Pb, Mn,Cu,Zn,et al) contaminated the surfacewaters. The results indicated that modification could enhance the diatomite and acidic heavymetal wastewater’s compatibility; Obtained that modified diatomite’s saturated adsorption capacity could reach 66.15~ 68.95mg/g, superior to raw one; At the same time, the comparation of four common adsorbents and modified diatomite’s adsorption capacity under some given conditions showed: modified diatomite > zeolite > vermiculite > raw diatomite > red soil; Observed by SEM, PAM molecule arrayed on the diatomite’s surface smoothly that improved its interior structure and the charge on the surface, even enhanced the sedimentation performance of the diatomite in heavymetal wastewater.

Nowadays, the subway spaces usually combine visual sense with auditory sense organs together to do orientation. From the universal design point of view, the article pointed that we should put more attention to the audio oriented message’ transition. In the meantime, the author proposed that each critical area should use sound symbols classification through analyzing on the perceptive characteristics of auditory sense combined with emotional semantics. In addition, this article gave some ideas on the establishment the audio oriented system in subway space and looked forward to its future. The audio oriented method is a beneficial supplement to the visual identity system that especially can provide the disabled person with more ways to get oriented information.

In this paper, a new type lithium hexafluorophosphate (LiPF6) complex was prepared with a new method using phosphorus pentachlorine (PCl5), lithium fluoride (LiF) and 1,2-dimethoxyethane (C4H10O2). The structure of the complex was carefully characterized by FTIR, TG-DTG,1H NMR and31P NMR. FTIR results indicate that the synthesized complex is consisted of LiPF6and C4H10O2. Chemical analysis shows that the content of LiPF6in the complex is about 45%, which could infer that the mole ratio of LiPF6and LiPF6(C4H10O2)2in the complex is 1:2. The results of1H NMR and31P NMR further confirm the composition of the complex and determine the structure. The molecular formula of the LiPF6complex is LiPF6(C4H10O2)2. Thermal analysis shows that the strong decomposition peaks of the complex appear at 75°C and 175°C. LiPF6(C4H10O2)2may be used in the electrolyte of the lithium ion battery which 1,2-dimethoxyethane is permitted or broke down into LiPF6after further preparation.

Though the on-the–spot investigation on the successful case-Beijing Sanlitun Village mall nightscape illumination, this article made a thorough analysis and interpretation on people’s visual psychological experience in the space, light and color application, lighting method and other illumination elements. It summarized the basic principles of illumination indirect-orientation and design rules in oriented system. In the illumination design, landmark illumination, auxiliary illumination and self-lighting in oriented system are supposed to be the important elements in the nightscape illumination oriented system. The designers should first select an illumination method reasonably combined with architectural form, and then stress the illumination on the key points of the oriented system, creating rhythmic changes of light.