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Building Information Model (BIM) was initially proposed by Autodesk in 2002. Currently, BIM has been widely recognized in the industry worldwide, baced on its great value. The concept of BIM has been gradually well-known in construction industry in China, and it’s a good prospect for development and application of BIM. But its application and promotion is still in start-up phase in China. It should be actively promoted in whole society. It was suggested in the paper: application and promotion of BIM technology should be implemented step by step, and precursed to apply in construction phase, ultimately achieved overall industrial application. This paper analyzed characteristics and advantages of application and promotion of BIM technology in construction phase, and discussed implementation sschemes and steps. Finally, it proposed BIM should be grandly guided to achieve comprehensive application in project’s whole-life.

It has been proved that the mold filling under low pressure casting can be described by the second order nonlinear differential equations characterized by damping oscillations. To obtain higher accuracy of the velocity field, the mold filling process with damping oscillations should be considered. A computational model taking the liquid level droping in the crucible into account based on two phase flow for filling process of damping oscillations is presented in this paper. Hydraulic simulation with the particle image velocimetry was adopted to verify the numerical simulation result. It is proved that the nemuerical simulation results used the presented model perfecly match with the particle image velocimetry results. Liquid level droping in crucible is the main reason for damping oscillations in mold filling. Velocity oscilations can be eliminated when the melt flow across a sudden expansion section. The detailed flow field based on the presented model can provide guidance to optimize the process parameters.

A new dioscin-bonded silica gel stationary phase with natural active ingredient for high performance liquid chromatography was prepared by one-pot reaction method, using 1,6-diisocyanate as the spacer arm. The structure of new stationary phase was characterized by solid-state NMR techniques, infrared spectroscopy, elemental analysis, thermogravimetric analysis and scanning electron microscope. These results show that the dioscin has been bonded to the silicia gel. The resulting stationary phase containes 127.6 μmol/g dioscin ligand. The chromatographic performance of this new stationary phase was evaluated by different kinds of solute probes. The results illustrate that the new stationary phase has a typical reversed phase chromatographic property, meanwhile it could present various interactions with solutes. The HPLC fingerprint of PNS(Panax Notoginseng saponins) API(active pharmaceutical ingredient) on the dioscin-bonded silica gel stationary phase was established. The mobile phase was consisted of gradient acetonitrile and water. The detection wavelength was 203 nm, the column temperature was maintained at 35 degrees Celsius, the flow rate was 0.8ml/min and the injection volumn was 15 μL. The contents of the 5 co-possessing components were determined simultaneously. A new material for HPLC was made by natural product. The using of dioscin-bonded silica gel stationary phase provides a new idea in natural products research.

The refractive index of double-distilled water and inorganic salt solutions of concentrations varying from 0.4 to 100 ppt (‰) have been measured at 20 Celsius degrees using Abbe refractometer, respectively. The inorganic salts such as NaCl, MgSO4, KCl and MgCl2,these forming the major constituents of seawater are used as solutes of the water solution. The effect of the concentration of these constituents on the refractive index of the solution is experimentally investigated. And meanwhile, the index of refraction studies are carried out for the laser wavelength of 405nm, 450nm, 532nm and 633nm under the case of varying concentration. The results show that the refractive index of the solution will be linearly increased with the increase of the concentration of these constituents. The index of refraction differs for the different solutes when their concentration is same at a certain wavelength.

The Polarized light microscope and DSC are used to study the influence of the nucleation agents’ type (The aqueous dispersion of isotactic polypropylene wax and the commercial nucleating agent TMB-5), nucleating agents’ content on the β-crystal content, melting points of α-crystal and β-crystal are studied in the paper. The difference of their capacities of inducing the crystallization of polypropylene are compared and analyzed. The foundation of the treatment of the aqueous dispersions of isotactic polypropylene wax on the reinforcements to induce crystallization on the surfaces of the reinforcements is laid.

The aqueous dispersion of MAH-g-PP and KH-550 solution are used in the pretreatment of GF. The effects of pretreatment of the aqueous dispersion of MAH-g-PP and KH-550 solution on the interface crystallization of PP/GF, the suitable temperature and time of the pretreatment of the aqueous dispersion of MAH-g-PP on GF are studied by scanning electron microscope (SEM) and polarized light microscope (PLM). Finally, PLM is used to study the effects of the aqueous dispersion of MAH-g-PP on the crystallization of PP.

Space effectiveness is to measure the effectiveness from the perspective of spatial structure. The space effectiveness of urban natural ecological network affects the urban natural ecological environment directly. Accessibility, liquidity, and supportiveness of "network-like" structure are key factors to the space effectiveness. Therefore, the key to optimize space effectiveness of natural ecological network is to maintain the space support structure that affects key effectiveness factors.

Due to the complexity of greenhouse environment, greenhouse system cannot be controlled perfectly by traditional control method. This paper proposes a novel greenhouse control system based on fuzzy neural network to regulate the internal climate of the greenhouse. Temperature and humidity are selected as the inputs of controller, while the skylight, sun-shade net, circulation fan, side windows, fuel heater, and micro-mist humidifier are selected as the outputs. After analyzing every situation that may occur in the control process and the corresponding control strategies, we obtain 35 control “IF-THEN” rules. Simulation results show that the fuzzy neural network controller have certain improvements than the conventional PID controller in the aspects of overshoot, stability and response time.

Bacillus sp. was stimulated by external low-voltage static electric field of different intensity at the same time. To make comparisons of the biomass, pH, the metabolism of Bacillus sp.and the surface morphologies of Bacillus sp.treated and untreated. The results showed that when the electric field strength was between 0.5V/cm and 3V/cm, the pH was bigger in test group than control group. The growth of Bacillus sp. was inhibited at 3V/cm, and promoted at 0.5V/cm to 2.5V/cm. The growth of Bacillus sp. was promoted maximumly at 0.5V/cm. Finally, we find that low-voltage static electric field didn’t damage the morphology. The appropriate electric field strength can enhance the metabolism of Bacillus sp.

Tea is a widely consumed beverage in the world and an important economic crop in China. However in recent years tea gardens were increasingly contaminated by heavy metals such as lead (Pb). Root uptake of Pb could contribute significantly to Pb accumulation in tea leaves due to the strong acidity of tea garden soils. To reduce the Pb bioavailability and absorption by tea plants, a pot experiment was conducted to evaluate the effects of 3 phosphate fertilizers separately with a normal application rate in the field of 0.2 g (P2O5) ·kg-1soil and a high application rate of 0.5 g (P2O5) ·kg-1soil on bioavailable Pb in tea garden soil and Pb absorption and accumulation by tea plants. Results showed that application of calcium magnesium phosphate significantly increased soil pH by up to 0.6 units from 3.50 to 4.13. Phosphate fertilizers resulted in an increase of bioavailable Pb concentration in tea garden soil under our experimental conditions. Pb concentration in tissues of the tea plants under different phosphate fertilizer treatments followed the order of root>stem>leaf. Calcium magnesium phosphate with a high application rate of 0.5 g P2O5·kg-1soil decreased Pb concentrations of roots, stems and leaves of tea plants significantly. For one phosphate fertilizer, Pb absorption in tea plants under high application rate was much lower than it under normal application.

This paper targets to the lag of code protection technology for Mach-O executable file on iOS. Consideration of code tamper, code injection on iOS, this paper has proposed a code protection scheme MFP(Mach-O File Protector) featuring with both encryption function and anti-debugging function based on UPX(the Ultimate Packer for eXecutables). Compared with UPX, MFP encrypt Mach-O executable file through 3DES and insert anti-debugging code to disable mainstream debugging software.

Quantum-behaved particle swarm optimization (QPSO) has shown excellent performance in solving optimization problems which inspired by analysis from particle swarm optimization (PSO) and quantum mechanics. In QPSO, the only parameter contraction-expansion coefficientβis vital to the performance of algorithm. This paper employs Q-Learning strategy and presents a novel parameter control method to improve QPSO performance. Then the empirical studies on a suite of well-known benchmark functions are to be performed to test performance. Finally, a further performance comparison between the proposed algorithm and other parameter control methods of QPSO are listed and the simulation results show the efficiency of the proposed QPSO with novel adaptive strategies.

This paper puts forward a visual method of detecting pop-cans based on AdaBoost Algorithm. This method, is basing on the idea of AdaBoost Algorithm, and we use Haar Feature and LBP Feature to extract pop-can characteristics respectively. Finally we compare the differences of the training processes and the experiment results between these two detectors. It shows that these pop-can detectors that are trained by this visual method have high detection rate and speed.

According to the problem that traditional single objective network planning cant meet the demand of complex gird and key supply mission, using improved artificial fish swarm algorithm (AFSA) for multi-objective grid planning. The paper presents a method through selecting Pareto optimal compromise solution by calculating and comparing the degree of satisfaction of each planning scheme with the reference of scholar Paretos approach of striking a multi-objective optimal solution. This method can effectively balance weights between multiple targets and improve the reliability and economy of power grid. The experiment results show the good performance of the proposed method.

As an important part of smart grid, smart substation is the acquisition source of operating data and command execution unit, and also acts as the important foundation and support of smart grid. With the continuous deepening of smart substation construction in State Grid Corporation, the overall integration design concept of the new generation smart substation based on research and development of new equipment has been put forward, realizing the main electrical connection optimization and improvement of reliability .Concerning the characteristic and application of DCB in smart substation, reliability of three kinds of typical main electrical connection schemes in existing substation and smart substation is calculated by the minimal cut-set method in this paper.

Power grid modeling, data maintenance and management in substation and control center are based on IEC61850 standard and IEC61970 standard respectively. The difference between the two standards inevitably affects the data sharing and maintainability of grid models and the operational efficiency of the whole system. The key issues concerning on cooperative modeling，such as power equipment collaborative naming mechanism, mutual mapping between SCL and CIM, constructing complete model for traditional substation, power grid model segmentation and merging are discussed in detail. The analysis shows that collaborative modeling is imperative for power grid to improve efficiency, reduce workload and enhance power system intelligent level in the future.

In the presented article, a novel multi-objective PSO algorithm, RP-MOPSO has been proposed. The algorithm adopts a new comparison scheme for position upgrading. The scheme is simple but effective in improve algorithms convergence speed. A sigma-density strategy of selecting the global best particle for each particle in swarm based on a new solutions density definition is designed. Experimental results on seven functions show that proposed algorithm show better convergence performance than other classical MOP algorithms. Meanwhile the proposed algorithm is more effective in maintaining the diversity of the solutions.

The Geermu-Lasa oil pipeline was located in the Qinghai-Tibet Plateau permafrost regions. The building and operating of pipeline will change the temperature field of soil around it, which can lead to changes of frozen soil mechanic properties, and this will induces deformation or even fracture of pipeline. These phenomena will affect the normal transportation of oil. In this paper, temperature field around the pipelines were analyzed due to different pipe diameters and different insulation layer thicknesses in the way of finite element method. The rule of thawing and freezing of soil around the pipeline in an annual cycle was obtained. Artificial permafrost table variations under the pipeline were also obtained due to different operating conditions. For 30cm diameter pipeline with 7cm insulation layer, its artificial permafrost table depth change value is just 0.48m after 30-year running. These analysis results can provide references to the construction of the new Geermu-Lasa oil pipeline.

To analyze the thermal effect of the pile foundation of permafrost, a two-dimensional transient finite element model of the thermal fields with phase change were established. The developments of heat influence limit and maximum thawed depth with and without climate warming were predicted and analyzed. Results indicate that (1) the heat influence limit and maximum thaw depth in permafrost regions enlarge with time elapse, while the global climate warming will have a greater influence to full-space pile foundation compared with the cone-cylinder pile foundation; (2) Considering the global climate warming, heat influence limit (Lmax) and maximum thaw depth (Hmax) in 50th year for full-space pile foundation, cone-cylinder pile foundation are 10.1m, 5.2m, 4.1m, 3.7m, respectively; the maximum thaw depth of full-space pile foundation during the operation will have exceeded the depth of structure (2.5m), which might put the structure at risk; (3) the structure of cone-cylinder pile foundation could effectively preserve permafrost and avoid pile foundations failure; (4) the spacing of cone-cylinder pile foundations is reasonable and the interaction of temperature distribution among cone-cylinder pile foundations can be negligible.

Marine development activities have a great impact on the Marine environment. Laser transmission has been widely used in marine communications and imaging technology. Due to the different proportion of the chemical composition of seawater in each Ocean field, the laser transmission characteristic in seawater is also different. The transmittance has been measured and calculated in a constant transmission distance in this experiment, by four different wavelength lasers and different concentrations of the various chemical components of the seawater. Then the data were analyzed by transmission curve fitting. The conclusion of this experiment is: for relatively pure seawater, the transmission characteristics of blue - green laser is better than the purple or red laser, and green laser transmission characteristics is better than blue laser; for larger impurities seawater such as Tianjin seawater, the transmission characteristics of red laser is better than the other three wavelength laser.

High-speed slotless permanent magnet brushless motor based on soft ferrite adopts a large effective air gap structure. For the large effective air-gap, the air-gap flux distribution becomes uneven and the end leakage flux significantly increases. Thus, the traditional analytical method of the phase EMF is inapplicable. This paper deduces the analytical expression of the phase EMF based on the analytical calculation of the air-gap field and analyzes the distribution of the end leakage flux by 3D finite elements methods. Then the end leakage flux is considered by a correction factor of the core length. Finally the analytical calculation method is proved to be feasible by the comparison between the finite elements results and the prototype test results.

Currently electronic information industry is in rapid development in Chongqing. While electronic products as well as electronic wastes will introduce potential ecological risks and there are many pollution cases related with them. Background of rapid development of electronic information industry in Chongqing can be described as follows: on the one hand, environmental standards and regulations for this industry in developed countries are stricter than before. On the other hand, related environment problems have already been obvious and serious in Guangdong, which leads to the transfer of such industry into inner regions such as Chongqing. In addition, there will be a hysteresis effect for the potential ecological risk and dangers, which lead to potential worries to the rapid development of electronic information industry in Chongqing. To get around of the trap of development, many problems should be dealt with in Chongqing as follows: global survey on product potential pollution and standards of electronic information industry; investigation on existing pollution cases; environmental impact evaluation on rapid development of electronic information industry in Chongqing. The suggestions and solutions are as follows: international environment standards should be adopted in Chongqing; special privileges should be avoided in industrial development environment building, which will be helpful to keep the strict environment standards; as for special aspects with uncertain environmental impacts, scientific support should be provided, which will be used to support reliable and sensible policy-making.

In order to fabricate a kind of amphiphilic hot-melt pressure sensitive adhesives (HMPSAs) suitable for transdermal drug delivery systems (TDDS) of natural medicines, SIS-based hot-melt pressure sensitive adhesives were modified by a melt-blending method, in which a kind of hydrophilic poly (ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) (RLPO) and polyethylene glycol 2000 (PEG2000) were utilized. Functional RLPO and its plasticizer PEG2000 worked as a hydrophilic skeleton of amphiphilic HMPSAs. SEM and FT-IR results indicated that RLPO and SIS were partially compatible with each other through n-π complex between the n electrons of the carbonyl group of RLPO and the π electrons of the benzene rings of SIS and their compound had a good thermal stability. The phase microscope images showed that PEG could improve the compatibility between RLPO phase and SIS phase. As the ratio of SIS/RLPO/PEG equaled to 1/2/1.6, their compounds obtained bi-continuous structures. Geniposide (logP

Semantic link is a hyperlink whick contains rich semantics. Semantic Link Network (SLN) consists of semantic links. Compared with hyperlinks, semantic link contains richer semantic information. There are many kinds of relationships between two SLNs, which contain equality relationship, inclusion relationship and empty set relationship. This paper mainly introduces an algorithm that can determine inclusion relationship between two SLNs. Semantic link newwork may consist of atom nodes or complex node. The determination algorithm proposed in this paper applies only to atomic node.

Atmospheric underlying surface change is the main reason for urban heat island and fog and haze. According to constructing a network-like cold bridge as well as coordinating the layout of urban hard underlying surface and soft underlying surface which can promote urban wind-heat movement, urban thermal climate environment may be improved by diffusing heat and solids effectively. As to suzhou, both city regional natural ecological pattern and main urban areal natural ecological environment structure reflect this philosophy.

In order to study the effects of electromagnetism on micrococcaceae, in this paper, micrococcaceae was treated by electric field of different intensity and magnetic field of the different intensity, at the same time, the optical density and pH of micrococcaceae with treatment were determined to compare with those of untreated samples. Results showed that the growth rate of micrococcaceae can be improved by electric field from 0.5V /cm to 2.5V/ cm and magnetic field from 4mT to 10mT, and, 1.5V/cm for electric field and 8 mT for magnetic field is the optimum treated parameters.

A binary phase only pupil mask with phase rings is placed on the plane of the aperture to modulate the wave front of the traditional microscopic imaging system, the modulation transfer function curves, obtained by the annular ring aperture applied to the pupil of the imaging system, do not change much within the required depth of field range, therefore, the loss of systems imaging information is avoided,meanwhile the depth of the field is enlarged. The Zemax simulated result shows that it is able to make the depth of field of microscopic imaging system extend 10 times to adopt this method.

A highly sensitive direct competitive fluorescence immunoassay (FIA) was developed for the determination of diethylstilbestrol (DES), based on the antibody coating format using biotin-streptavidin amplification system. In the assay, DES competed with biotinylated goat anti-rabbit IgG for the immobilized antibody, then the streptavidin-FITC was added to link to the biotinylated goat anti-rabbit IgG as a tracer. Under optimal conditions, the assay provided a wide analytical range of 0.001-10000 ng/mL with a detection limit of 2.91×10-4ng/mL (R2=0.9943). This method was then applied to the determination of DES in chicken with satisfactory results

A new method was established for detecting a series of photoinitiators (PIs) in printed cartonboard food-packaging materials, which were benzophenone (BP), 4-methylbenzophenone (MBP), 1-hydroxycyclohexyl phenyl ketone (Irgacure184), ethyl-4-dimethylaminobenzoate (EDAB), 2-ethylhexyl-4-dimethylaminobenzoate (EHDAB) and 2-isopropylthioxanthone (ITX) by gas chromatography–mass spectrometry (GC/MS). Extraction was carried out with ethyl acetate by ultrasonic solvent extraction. Samples were analyzed by GC/MS in selected ion monitoring (SIM) mode. The results indicated that six kinds of PIs had good linear relations (R2>0.9989) in the range of 10~200 μg/L. Limit of Detections (LODs) and Limit of Quantifications ( LOQs ) of all kinds of PIs were 0.3~2.6 μg /kg and 1~8 μg/kg, respectively. The recoveries of six kinds of PIs at three kinds of concentrations researched (0.30 μg/kg, 0.60 μg/ kg, 1.0 μg/kg) were ranging from 66.7%~89.4%, with the Relative Standard Deviation (RSD) of 4.2%~10.6% (n=6). The results also suggested that PIs were detected in food packaging materials.

Systems as diverse as genetic networks or the World Wide Web are best described as networks with complex topology. A common property of many large networks is that the vertex connectivities follow a power-law distribution. This feature was found to be a consequence of three generic mechanisms: (i) networks expand continuously by the addition of new vertices, (ii) new vertex with priority selected different edges of weighted selected that connected to different vertices in the system, and (iii) by the fitness probability that a new vertices attach preferentially to sites that are already well connected. A model based on these ingredients reproduces the observed stationary scale-free distributions, which indicates that the development of large networks is governed by robust self-organizing phenomena. Experiment results show that the model is more close to the actual Internet network.

Bases on the expansion of Geordie Coefficient, a analysis method for water consumption fairness have been set up, and the Geordie coefficients are calculated to describe the influence of population, GDP, water quantity on water use of China in 2009. Then water demand coefficient is put forward to estimate the reasons for unfairness of water use. Moreover, Geordie coefficient of the North and South of China is analyzed. The results show that Geordie Coefficient represents unfairness of water use, which result from the unfair factors, including population, GDP, and water quantity. The research can provide reference for reasonable configuration of the water resources.

Formulating and implementing river basin water resources allocation scheme is one of the most crucial measures to promote orderly development, efficient utilization and management, reasonable allocation of water resources. Clarifying water share for each region in a river basin and perfecting water resources allocation system can effectively contribute to achieve the social stability, eliminate the water use contradiction among different regions, realize sustainable water resources utilization and eco-social development, guarantee environment flow. It also conforms to the strictest water resources management system proposed and carried out at present of China. In order to make the readers better understand water allocation done or being done in China, river basin water resources allocation practice was summarized in this study. Institutional arrangements related to water resources allocation in China was also been summed up.

With the development of public transport system, more and more people rely on public transport to travel. By the means of statistical method, the paper studies the travel temporal distribution of bus and subway and the differences between the weekday and weekend based on the smart card data in Shenzhen, aiming to find the characteristics of transit trips in developed cities of China and provide references for urban transport planning and management. The results of this study show that the number of trips in weekday is 205,000 more than weekend, while the mode in workday and weekend have little difference, where the subway accounts for 80 percent and buses account for 20%; more bus trips in weekday and more subway trips in weekend; the peak is more obvious in weekday than that in weekend.

Water stress is an important approach to use water resources efficiently and remit the agricultural water shortage. Hemarthria compressa is one of perennial grasses, a pasture of high quality, which has abundant species resources in China. To explore the response of the growth, yield and water use efficiency(WUE) of Hemarthria compressa under water stress, this study, adapting pot experiment, imposed three water stress degree (LD, MD and SD) treatments and a control treatment on Hemarthria compressa. The data of growth indicators during control period, yield and total water consumption were obtained. The results show a noticeable inhibitory action of water stress on the growth of Hemarthria compressa. Along with the intensifying of water stress, plant height increment, leaf area, total biomass, dry matter of each organ and yield decreased, and the root-shoot ratio increased firstly and inclined to slump finally. Plants under the middle water stress treatment achieved the greatest WUE of 38.25 kg/m3. The first 10d in the water control period was the most sensitive period of the pasture responding to water stress.

The boundary-layer theory explains very well the steady-state flow over a flat plate at zero incidence angle known as the Blasius flow. It is long known that the appearance of boundary layers is not restricted to the canonical problem of the motion of a body through a viscous fluid. Several other technologically important sources of boundary-layer behavior are the flows behind expan- sion and shock waves travelling over smooth surfaces and the flow above a moving conveyor belt. In fluid mechanics, to obtain the multiple solutions in ordinary differential equations is always a concerned and difficult problem. In this paper, a novel RNA genetic algorithm (NRNA-GA) inspired by RNA molecular structure and operators is proposed to solve the parameter estimation problems of the multiple solutions in fluid mechanics. This algorithm has improved greatly in precision and the success rate. Multiple solutions can be found through changing accuracy and search coverage and multi-iterations of computer. At last, parameter estimation of the ordinary differential equations with multiple solutions is calculated. We found that the result has great accuracy and this method is practical.

With rapid urbanization, villages on urban fringe are being merged with city, among which, ancient villages are of no exception. In this study, Jingangbei village in Beibei district, Chongqing city was selected as the object for investigated. Through field investigation and literatures retrieval, history, space form and cultural features of Jingangbei were illustrated. In addition, by comparing of the protective plan and current situation of Jingangbei, chances and challenges for ancient villages’ protection were put forward, namely: Administration of Cultural Relics and local residents’ participation; change of planning objectives from wealth-seeking to multidimensional objectives; sources of protect funding and definition of future functions.

This paper discusses results of experiments on blind bolted end plate joints to concrete-filled thin-walled steel tubular (CFTST) columns. Four exterior joints to CFTST columns subjected to cyclic loadings. A feature of this novel joint is the use of the blind bolts and extensions to these bolts into the concrete-filled square steel tubular column. Failure modes, moment-rotation hysteretic curves and energy consumption of the connections were analyzed. Further, the connection rigidity and ductility were also elevated by present specifications. The test results showed that the end plate type and the steel tube thickness affect the seismic behaviour of the typed blind bolted end plate joints. The proposed joint has reasonable strength, stiffness and ductility by taking reasonable end plate type, steel tube thickness and blind bolt anchorage; its ultimate connection rotation satisfies the ductility design requirements, and could be reliably and safety used in low-layer or multi-layer composite frames.

The bending-roll control system has characteristics of time-varying, time-delay, nonlinearity and serious external disturbance, so it is hard to establish precise math model that be applied to control. In view of the problems above, ant colony algorithm is used to tuning parameters of PID controller and concrete step of PID parameters tuning based on ant colony algorithm is given. The simulation results indicate that the method not only improves control performance and dynamic quality, but also has strong self-adapting ability and robustness. It achieved a very good control effect when used in bending control system that proved the correctness and effectiveness of the control method.

Comparing with many modern signal processing methods in the bearing fault diagnosis, Hilbert-Huang transform is proposed which has good resolving power, and is adapt to process non-stationary, nonlinear and no cross-interference signals. Experimental bearing vibration signals have been analyzed by using this method, whose impulse response waveform was effectively separated from the signals. The results show that the sensitivity and reliability of the method are satisfactory.

Long annular rack pumping unit is a new styles of pumping unit invented by Gu Xinyi academician. It has some advantages including energy conservation and high reliability. In order to understand the dynamics of the new pumping units, the virtual prototyping model of this pumping unit is build. The kinematics and dynamics characteristics of this unit are researched and simulated. The results can be a guidance for the design and practical application.

A new particle swarm optimization based on dynamic parameter modification is proposed in this paper (Dynamic Parameter Modification Particle Swarm Optimizer, DPSO). In DPSO algorithm , is doing oscillating decay breaking through the constraint of topical linear decreasing, and the Euclidean distance and is calculated, which respectively stand for the Euclidean distances form the position of particle to the best position that the particle has passed and the best position that all the particles have passed under the time . Parameters and of topical PSO are modified dynamically based on the comparison of and in order to coordinate between global search and local search. Then find out the optimal value of Goldstein-Price function using topical PSO and the improved DPSO respectively, and the results demonstrate that compared to topical PSO, DPSO algorithm avoids falling into the local minimum and improves the search efficiency.

Considering lumen elastic deformation, Reynolds equation is deduced based on non-Newtonian model in this paper. Traction force and hydrodynamic mucus film thickness are calculated according to elastohydrodynamic lubrication theory. Compared with results based on Newtonian model and experiments, analysis based on non-Newtonian model reflects practical condition well. Lumen elastic deformation has some influence on traction force and mucus film thickness.