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MgB2 powder was fabricated by sintering the mixture of pure Mg and B powder with atomic ratio of Mg : B=1:2. The magnetic property of the powder indicated that it was superconducting and its critical transition temperature was 39K. Titanium based MgB2 films were obtained by electrophoretic deposition method using Ni sheet as anode and titanium tapes as cathode. The films were annealed at 500°C for 2 hours, subjected to argon-hydrogen (95%Ar+5%H2) gas flow. The results of X-ray diffraction (XRD) analysis showed that the composition of the film was mainly MgB2. The observation under scanning electron microscopy (SEM) showed that the film of MgB2 was uniform and dense. The electrical resistivity of double-side MgB2 film was about 5.280×10-8Ω/m.

China’s higher education has now entered a new stage of popularization. For this reason, the students’ demands expecting to the university are multiple with diversity, complexity and personality. We designed a Self-management System Model and implemented a real application test system for East China Normal University, which is based on the constructivism and evaluation theory, and B/S architecture. This system can be used to record the students’ online performance and fully reveal the students’ personality and talents. This system also can be used to promote students’ individual development.

In view of a certain type of electrical equipment whose failure causes and failure is not a one-to-one relationship between signs, this paper established the mathematical model of fault diagnosis adopting the fuzzy reasoning mechanism. At the same time, we designed the system overall scheme of fault diagnosis according to the system of the diagnosis process and realized diagnosis function of system by using vc + + programming language. Through specific examples verify that the system has the ability of fault diagnosis of electric equipment for a certain type.

The present study was implemented to investigate the trihalomethanes formation potential (THMFP) in drinking water treatment and to determine the impact of preozonation on the reduction of Trihalomethanes (THMs). The full-scale examination was carried out, using Luan River as the raw water. Two different preoxidation methods, prechlorination and preozonation were performed. THMFP and THM species were analyzed. The investigation indicated that 18.72% of THMFP was removed during preozonation. Further study on the distribution of THM species showed a significant reduction of Chloroform and bromodichloromethane, 20.62% and 17.39% during preozonation, respectively. The result suggested that the application of preozonation process is an effective method for reducing THMs generation in drinking water treatment. In the final effluent, the total removal rates of THMFP were 47.49% after preozonation and 55.67% after prechlorination.

With the advent of the third information revolution, the internet of things (IOT) and cloud computing, as the representative of the emerging field of information technology, began in force. As an important part of the information, agricultural information has opportunities and challenges. The current agricultural information service information integration is low, real-time information is not enough, personalized service issues is incomplete. This paper proposes an integrated agricultural information service model IOT building programs and cloud computing. The program implements networking technology and cloud computing technology docked in the field of agricultural information service, a better solution to the shortage of agricultural information service in the presence of current, reducing the threshold for the use of agricultural information services, improving the efficiency of agricultural information services.

In 2007, as a new computing paradigm, Cloud Computing go into people's sight. It is a technology that develop with the parallel computing, distributed computing, utility computing, a new computing paradigm and the emergence of grid computing development. It is also the result of network storage, virtualization and load balancing development. As an Internet-based super computing paradigm, cloud computing allows users to dynamically share the hardware, software, and data resources. In the process of sharing resources, it is inevitable to involve security issues of network transmission. In order to solve the security problems of network data integration cloud computing facing agricultural resources, this study proposes a network security model which can be proved to be much useful in the near future.

Network examination extends the meaning of the traditional examination, makes the examination more fair, more authoritative and reliable, accord with the modern education system, and represents the development direction of modern education examination. In order to solve the problems of the present situation that students’ scoring rate lower on the part of English vocabulary comprehension, develops a vocabulary comprehension item bank of English network examination. According to the data persistence mapping file to launch the research. Firstly, begins the design of database logical structure, designed the logical structure of "Examination question Main table", "Alternative vocabulary table" and "Standard answer table"; Then, begins the design of persistence mapping file, designs the database tables and data operation class corresponding to the mapping file which is based on NHibernate architecture. The research contents of this paper laid the foundation for the construction of item bank.

The water-soluble ZnSe:Ag quantum dots were synthesized in aqueous medium by chemical co-precipitation method with L-cysteine as surface modifier. The crystal structure and optical properties of the obtained ZnSe:Ag quantum dots have been characterized by X-ray power diffraction, infrared spectrum, UV-Vis absorption spectrum and photoluminescence spectrum. Results indicate that ZnSe:Ag quantum dots belong to the cubic blende structure and have good fluorescent characteristics. The L-cysteine modified on the surface of ZnSe:Ag quantum dots renders the quantum dots water-soluble, biocompatible.

This paper achieved the realization to apply a hybrid fuzzy control algorithm to control the rotorcraft, which can it fly stably, load heavy things, carry easily and complete complex flight movements. The operation show that control system is effective and valuable.

Cracks at the boundary of the brittle inclusions inside heavy forgings are major defects detrimental to the forgings’ the fatigue life and impact performance. In the forging process, the stress field around brittle inclusions is the key factor determining whether cracks appear at the boundary. To study the influences of the stress field on the crack initiation, a definition of the Average Stress Intensity (ASI) and its mathematical expression analytic are given. Average Spherical Stress Intensity (ASSI) is used as an index to investigate the rule of the stress field’s influence on the brittle inclusion boundary crack initiation. Numerical simulation results indicate that ASSI is highly relevant to crack initiation at brittle inclusion boundary and it is practical to use it as a parameter to represent the effect of the stress field on the crack initiation at the boundary of the brittle inclusion. As the algebraic value of the ASSI decreases, the crack size decreases. When the algebraic value of the ASSI is less than-2.3, there will have no cracks at the boundary of the brittle inclusion. Hot compression tests at 1220°C are conducted on a Gleeble-3180 thermal mechanical simulator with dedicated specimens and shape anvils. Scanning Electron Microscopy (SEM) is employed to observe the cracks at the boundary of the brittle inclusions inside the specimens. Observed results agree well with the numerical simulation results.

Due to the complex structure of railway coupler, the evaluation of coupler is always a difficult task for railway carriage inspection at present. Combining structural light scanning technology with movement mechanism, a coupler auto-evaluation system has been designed and realized. This paper emphasizes on analyzing the measuring model of the coupler evaluation system, and introducing the point cloud data processes for getting evaluation items. The system is more flexible and efficient than traditional detection method of coupler, and can meet the requirements of auto-evaluation items of coupler.

According to the measurement problem of aircraft parts at maintain field, a measurement system based on industrial robot is proposed in this paper. An industry robot which carries an electronic lever indicator with communicating function to sample data, serves as main measurement actuator. The aircraft part is fixed on a revolving table, and the whole part can be measured on equivalent rotated place. Some key points, such as the kinematics model of the system, the calibration of the system and measuring approach are discussed. The experimental results demonstrate that the system is more flexible and more efficient and fit better in the maintain field with respect to traditional measurement methods.

The different structures of choking cavitator were studied by using numerically simulation based on the orthogonal experiment. Many different structures of choking cavitator were researched to get a set of parameters which can produce much stronger intensity of cavitation. The results of investigation show that the optimal values of characteristic parameters are the optimal flow value of 1.5 m3 / h, entry point of the optimal value of 35 o, the outlet diameter of 9 mm, the back pressure of 70 kPa and the throat length of 70 mm.

The adiabatic shear bands (ASB) of the thick-walled cylinder have been studied by many researchers in the recent years. The onset and evolutions of the multiple shear failure of metal cylinder under explosive loadings are affected by many factors such as the characteristics of the impulsive loadings, the dynamic behavior of the materials, etc. In this work, a tube compression driven by electro-magnetic forces is introduced, which enables to carry out the experiments of the spontaneous evolution of multiple adiabatic shear bands in metal tube. The FEM simulation was conducted to investigate the evolution process of strain localization with coupled thermo-mechanical analysis. The FEM results show that ASB initiates when the stress drops rapidly and strain growth and not when it reaches the maximum shear stress. Once the shear band is formed, elastic unloading occurs beside the shear band. The different behaviors of the damage introduced in the strain softening model affect the initial nucleation strain and the distribution of ASBs. With the increase of material damage softening, the initial strain of shear band decreases and the number of shear bands increases.

A new experimental technology based on the Split Hopkinson Pressure Bar (SHPB) is developed for conducting expanding ring tests. The technique is useful for the studies of the dynamic tensile deformation and the fracture (fragmentation) properties of ductile metallic materials. The loading fixture includes a hydraulic cylinder filled with the incompressible fluid, which is pushed by a piston connected to the input bar. As the liquid is driven, it transfers the pressure to the specimen, compressing and expanding the metallic ring specimen in the radial direction. The approximately incompressible property of the liquid makes it possible to transfer a relatively low piston-driving velocity to a very high radial-expansion velocity of the specimen, as the sectional area of the cylinder narrows significantly. Using this experimental technology the ring specimens made of LY12 aluminum alloy were dynamically expanded and fragmentized. Results show apparent increases of the fragment numbers and fracture strain of the specimen with the increase of the impact velocity. The recovered ring fragments were examined and measured to obtain the average fragment sizes (lengths) during each test. These fragment sizes were compared with the estimates from the classical fragmentation theory that was initiated by N.F. Mott and later developed by D.E. Grady. It was found that the Mott-Grady theory provides reasonably good predictions of the fragment sizes for ductile materials. This conclusion agrees with the recent findings of ours based on the numerical simulations and physical arguments.

Nano-Fe2O3/goldmine complex was obtained by chemical coprecipitation on the surface of goldmine waste-solid. And its application as the heterogeneous catalyst in Fenton-like advanced oxidation processes (AOPs) was discussed for the degradation of dyeing wastewater. It was found that advanced oxidation processes play an important role to the removal of dyeing wastewater. And the best removal rate of 15400mg/L dyeing wastewater reached up to 63.1% with the presence of 50g/L dosage of nano-Fe2O3/goldmine complex and 50mL/L concentration of H2O2at 50°C with pH=3.

To study the propagating behavior of a dynamic crack in brittle materials, an experimental technique was developed that measures the propagation speed of a fast crack in a preloaded brittle strip. The specimen is a rectangular PMMA plate clamped by two heavy steel fixtures that are attached to a MTS test machine. After the specimen was tensile loaded to a prescribed load level, a sharp crack was initiated at the middle point on one side of the specimen. Due to the brittleness of the material, the crack propagates quickly across the specimen. The propagation velocity of the crack was measured by using the equally spaced conductive lines that were painted on the specimen surface before the tests. High speed video camera was also used for monitoring the propagation behavior of the cracks. The experimental results show that for each preloaded plate, the crack arrives at a steady velocity v0 after a short acceleration stage. In the steady stage crack propagation is in self-similar state. The steady velocity of the crack was found to be an increasing function of the energy Gc stored in the preloaded strip, which means that the material has a "velocity-toughening" property. When the crack speed exceeds a threshold, the crack exhibits apparent speed oscillations. This speed oscillation corresponds to the occurrence of the periodic grooves on the fractured surface. Further increase of the preload results in the bending, micro branching, and full bifurcations of the crack paths.

The one of technical key of the convergence-divergence nozzle is extend Angle. To use applies continuity equation, momentum equation and Rayleigh-Plesset equation, bubbly liquid through different extend angles of converging-diverging nozzle were simulated. The results show that it is helpful to increase the vibrating width of cavitate bubble when enlarge appropriately the exit taper of nozzle, that is the convergence-divergence nozzle with extended angle is more conducive to cavitation.

A new heteronuclear Ln-Co carbonyl cluster, Ce4Yb2(μ3-L)4(CF3COO)8(DMF)6Co (L=(CO)6Co2CC(COO)2-), has been synthesized by reaction of (CO)6Co2CC(COOH)2 with Ce (OOCCF3)32H2O and Yb (OOCCF3)32H2O. The cluster structure was characterized by single-crystal X-ray diffraction and IR. The crystal is monoclinic crystal system and C2/c space group. X-ray analysis revealed that the heterometallic cluster belonged to a rare class of Ln-Co carbonyl cluster bridged by carboxylate groups of carbonyl cluster ligands. The cluster was monometric unit and exhibited cage-like configuration.

In order to solve the problems in the traditional remote sensing image based on spectral information, such as low classification accuracy, different object with the same spectral features or the same object with the different spectral features, and limited sample quantity and so on, a remote sensing image classification method based on the support vector machine (SVM) including with textural features is proposed. Using Langqi Island of Fuzhou as experimental area, preprocessing and principal component analysis were made to initialize TM images, and the spectral features and GLCM-based textural features of ground objects were extracted and analyzed respectively. Then, the extraction, training and testing of samples based on the two types of features were finished for training various SVM classifiers, which were used for classifying land use in the experimental area. Through the maximum likelihood method, the BP neural network and the support vector machine (SVM), a crossed classification and contrast experiment was made to two different types of samples based on the simple spectral features and the features combined with texture respectively. The experimental results showed that the SVM classification method including textural features can effectively improve the accuracy of land use classification, and therefore it can be promoted better.

As an important form of Internet data, semi-structured data in data mining is an important fist conditions. And the data mining was designed to find and extract large database in the implied information of value. This paper first introduced the half structured data concept characteristic, based on the data from each of the half structural said, the data model two half-and-half structured data model are introduced, finally summarizes semi-structured data model and the relationship between the data model before difference [1].

A new cavitator-choking cavitator is designed on the basis of analyzing the choking cavitation phenomena that occurs in gas-liquid mixed flow of straight pipe ,in jet pump under operating limits and in steady adiabatic flashing flow of stepped circular tube as well as in a cylindrical pipe with a sharp edged-corner for the steady and unsteady flows. The feasibility preliminary research of choking cavitator is carried out with analysis the signals of cavitation noise and treating simulated wastewater (phenol solution). The results offers a new approach in cavitator development field at home and abroad because of the effect that treating simulated wastewater with choking cavitator is preferable,and the cavitation per energy produced by choking cavitator is higher than that by self-oscillated chamber nozzle.

The boronizing experiments on the surface of Ti-6Al-4V (TC4) titanium alloys were based on solid powder method. Different additives were added into the boronizing agent. The morphologies of surface layers on titanium alloys were observed in scanning electron microscopy (SEM). The phase compositions of boronized layers were analyzed by X-ray diffraction (XRD). The wear resistance properties of boronized TC4 were determined by the friction and wear testing machine. The results showed that all the boronized layers were composed of TiB2and TiB dual phases.When 5%Fe3O4was added into the boronizing agent, the boride layer contained more TiB2compound and was thicker than those with the addition of 5%Na2B4O7.

BET (Brunauer Emmett and Teller) surface area and pores distribution for the samples DX 09 Carbon were measured for of DX 09 carbon by N2 adsorption (195 °C) with Autosorb-1C (American Quantachrome Company).The adsorption of benzene over DX 09 Carbon was measured in the static vacuum adsorption equipment, which was self-constructed in laboratory. It was experimentally found that the BET surface area is about 1008 m2/g, and the structure coefficients for DX-09 carbon were W=0.365 and B=1.32*10-6 measured by benzene adsorption and calculated by D-R equation.

Ancient buildings have poor anti-seismic ability due to the long age of construction and lack of data materials. This paper seeks a scientific and quantitative evaluation method and predicts the earthquake damage of an ancient building by using fuzzy analogy approach. The example shows that this evaluation method has great meaningful of the existing ancient buildings under the earthquake intensity which likely to be encountered with the design life expectancy and provides a certain scientific basis of seismic estimation in ancient buildings.

The objectives of this study were to investigate impact of preoxidation on disinfection by-product (DBP) precursors in drinking water via two different preoxidation methods. The full-scale study was conducted on surface river water in a water supply plant in Tianjin, China. Two treatment trains were performed, with prechlorination and preozonation as preoxidation methods, respectively. The water samples were collected on different stages along the treatment processes and analyzed by following organic parameters: dissolved organic carbon (DOC), UV254 and specific ultraviolet absorbance (SUVA). The results indicated that Train 2 with preozonation was more effective to reduce DBP precursors. Preozonation possessed an excellent ability in the removal of UV254 and SUVA, the removal efficiencies were 25.14% and 18.77%, respectively, comparing to the removal rates of 6.66% and 5.64% during prechlorination, separately.

Based on the the requirements of appropriate reverberation time for the speech acoustic-dominated conference room, which are stipulated in Code for architectural acoustical design of theater ,cinema and multi-use auditorium(GB/T 50356-2005), this paper is trying to redesign the conference room on the fifth floor of the college of architecture and civil engineering of Taiyuan University of Technology, on account of the problems found after the experimental measurement. And the author introduces Ecotect to simulate the redesigning plan, in the hope of providing reference to acoustical design for the speech acoustic-dominated conference room.

This paper gives further discussions refer to the precision grinding of high performance ceramic materials through the two aspects of the Grinding Properties and depth.

Introduced the use of 3D time baseline parallax method of steel structure,calculation of deformation measurement data processing methods, and the experimental results are given. This method considered the resolution, focal length, and the impact of external environmental conditions. Has made the small observation error, high precision results.Digital cameras used for digital photographic survey, avoid the complex process of measuring cameras printing. The photographic measurements can be performed simultaneously inside and outside the industry.So far, more suitable for digital camera solver methods are direct linear transformation and time baseline parallax method. Among them, 3D time baseline parallax method is mainly used for measuring spatial displacement of objects.

Caudal fin has fascinated researchers for decades for their great role in fish swimming, and researchers have developed lots of designs of caudal fin to achieve high efficiency and speed propulsion. This paper presents a novel design of variable area caudal fin. A “window” which can rotate freely is designed in the middle of the fin and it can be opened by the fluid force and closed by a simple mechanism. By closing or opening the “window”, the caudal fin can vary its area dynamically in the out-stroke and in-stroke in its motion. Four modes to control the “window” in the pitching motion is then presented, their hydrodynamic forces including thrust force, lateral force and lift force are studied. It is found out that the variable area fin model can indeed improve the propulsion performance compared with the traditional fin, and the mode of closing the “window” in the out-stroke and opening the “window” in the in-stroke can generate the largest thrust force for our model than the other modes. Moreover, experiments about various kinematic parameters with different modes are conducted, it is found out different modes behave quite different with same pitching frequency and amplitude, and its propulsive performance is highly depend on the kinematic parameters. The variable area caudal fin model casts an inspiration for the novel design of underwater propulsive mechanism and the results will be useful for the propulsion study of underwater bio-mimetic vehicles.

The mechanical properties of the whole wall and the wall with openings under vertical loads are analyzed by nonlinearity finite element method (NFEM). The results show that the stress of steel wire has a direct relationship with the load form. The inclined plug wire mainly carries the stress caused by load differences between the two sides of concrete, it makes both sides of concrete work together better. As the diameter of the inclined plug wire increased, the effects on the FQQB mechanical properties become greater, wire mesh stress on both sides decrease, and the vertical displacement of FQQB decrease. Cracks appear above the openings of FQQB which has been cut holes. Steel wire tends to be tension stress concentrated, and there are obvious stress concentration belts on both sides of the opening. However, the size of the opening has little effects on the ultimate bearing capacity of wall panel.

Diaphragm distributes lateral loads, and improves mechanical properties of bridge structure of prestressed concrete (PC) continuous wide girder bridge. The role of diaphragm is more prominent in composite wide girder bridge with corrugated steel webs, which stiffness is smaller compared with PC continuous bridge. Diaphragm is calculated and analyzed of composite box-girder bridge with corrugated steel webs, and reinforcement schemes are presented, aimed at diaphragm crack width overrun and insufficient bearing capacity. The reinforcement scheme is adding prestressed steel cables and special supports, stress and crack resistance are analyzed on reinforced diaphragm to verify the existing problems can be completely solved.

Based on the tested data, the ANSYS finite element analysis software was adopted to establish the finite element model for the concrete beam nonlinear analysis.The finite element models were developed using 3-D solid element for concrete and shell element for the Carbon Fiber Reinforced Ploymer (CFRP) sheet. The results obtained from the ANSYS were compared with the experimental data for two strengthened beams with different thickness CFRP sheet. The comparisons were made for the curves of load-midspan deflection, yielding load and ultimate load. Models were calculated at the same condition as the experimental beams. Two reinforced beams strengthened with CFRP sheet were calculated in four-point bending. The load-deflection curves from the finite element analysis agree well with the experimental results. The average difference in ultimate load for two cases is 5.5%.

Corrugated steel webs have crinkled effect without capacity bearing the axial force and bending moment, which leads to its effective elastic modulus is smaller than that of material. This paper deduced the computational formula of effective elastic modulus corrugated steel webs, and puts forward the calculation method for corrugated steel webs of composite beams. Combined with a continuous composite box-girder bridge with corrugated steel webs, the finite element model is built to analyze the bending performance such as normal tensile stress, normal compressive stress and crack resistance.

The texture and characteristics of surface have been becoming the leading factors to achieve the designed function of products successfully. So the measurement of surface texture is more and more important. A kind of new multi-function fusion measurement method for surface texture is presented in the paper. Four kinds of different scale measurement methods such as microscopy image measurement, vertical scanning white light interference measurement, white light interference nanoprobe measurement and white light interference diamond-probe measurement are fused for the surface texture multi-function fusion measurement in this method.

Non-convergence often occurs in the solution of highly nonlinear problem by conventional implicit finite element method. As another choice, explicit method is sometimes used by researchers. Through 2 typical static and dynamic examples this paper verifies that explicit finite element method can provide the same exactness of calculation as the implicit method even in the situation that the duration of action exceeds the natural period of structure greatly. At the same time, compared with implicit method, explicit method possesses higher speed, more robust algorithm, and stronger nonlinear capability, so that explicit method can be applied in static and dynamic analysis of structures, especially in large deformation and highly nonlinear problem.

Cloud computing has changed people's work, life and learning while more and more collaborative learning based on cloud services are applied to the field of education and teaching. This paper analyzes the collaborative learning characteristics supported by cloud computing and designs collaborative learning programs of College Computer Basis based on cloud services.

The traceability management system of aquatic product is based on RFID techniques which could obtain the function of aquatic products statistics and water quality monitoring automatically. The system frame, hardware and software design of micro-controller and anti-collision algorithm are issued in this paper. The identifying of aquatic product and water quality monitoring information are delivered to the management system and the speed of reading operation is increased greatly.

New type of Co-based catalyst was prepared using (CO)6Co2CC(COOH)2 as precursor supported on γ-Al2O3 support. The effects of pretreatment pressures on the catalysts properties and the F-T synthesis performance were investigated in details. Combined with TEM characterization technology, it was found that under different pretreatment pressures (0 MPa, 1.0 MPa, 2.0 MPa), the structure of carbonyl clusters underwent different changes. Moreover, the aggregation degree of cobalt species depends on the pretreated pressure applied. In addition, the catalytic performance of the cobalt carbonyl catalyst pretreated with different pressures was performed and both CO conversion and C5+ selectivity exhibited the order of Co2/2MPa/Al2O3 > Co2/1MPa/Al2O3 > Co2/0MPa/Al2O3.

Article takes the tourist information service system based on 2D&3D intergration as an example, and shows the development method and process of WebGIS system based on the combination of the 2D GIS and 3D GIS; and emphasis on the data import, coordinate setting, format conversion, etc in the process of building 3D model.

With the development of sensor technology, image fusion becomes increasingly important in complex battlefield environment. As traditional methods for precision-guided weapons systems exist defects of fuzzy detection, low recognition rate and poor real-time; this paper proposes a new fusion algorithm of combining wavelet transform with Canny operator. Firstly, the improved method detects the edge with Canny operator; Then using wavelet transform decomposes images; Next, adapts unique fusion rules to change wavelet coefficients of images, using weighted average algorithm for low-frequency component, while using a local area average variance criterion for high-frequency; Finally, using the inverse wavelet transform to obtain reconstructed images. Theoretical analysis and simulation results show: the improved method not only reduces the fuzziness and highlights target color, but also makes computational efficiency high, real-time good.

We focus on the recognition of RS code in a reverse-engineering communication system, and an algorithm based on spectral statistic is proposed, which makes use of the spectral characteristics of RS code. When there are some codes with errors in the observations, the spectral histogram statistic is computed, which can improve the probability of detection in the noisy environment. Experimental results are given to illustrate the performances of the method which can get a 90% probability of detection of (255, 223) RS code in the presence of 0.5% code error rate.

Based on the wireless to realize the industrial automation, and now this is the field that people daily concerned about, but also is the hot issues of research of the community and even academic. The study of standardized wireless networks for industrial applications is more based on the Zigbee research methods. In this paper, we try to increase the combining of these new design technology and industrial automation of wireless standards. Wireless based on the PC can be applied in the micro and macro industrial by using Zigbee network; it has a variety of different types of processors and microcontrollers. Microcontroller relates to the temperature sensor, the zero crossing detector and voltage regulatory agencies. The system can completely control them through visual-based GUI (graphical user interface of the PC). The graphical user interface is the applications program based on the user-developed. All processors and controllers are interconnected PC through Zigbee. The PC will continue to monitor all the data structure unit and compare value from remote processing preloaded process. If you find any error, computer will take the necessary action. Zigbee network is also the star topology structure that tries the four nodes. The first Zigbee is connected to the personal computer, it has fully functional device, its role is transmitting and receiving the data of other nodes. The second, third and fourth of the Zigbee have device that can reduce function, and they are used to control the rotational speed of the DC motor, have separate control of the temperature and the lamp lighting. It can interconnect all processing unit of Zigbee through the RS232 protocol.

This paper improved the existing multi-function auditorium by disposing the interior walls and ground materials through secondary interior space design under the condition in which its location, floor height and size remain unchanged. Besides, simulation analysis was also made by combining with specific examples.

Ti6Al4V (TC4) slices were boronized with rare earth oxide (RE) addition in the agent at 950°C (below β phase transus of TC4). The morphology, phases, properties and structures of TC4 matrix and boride layers were studied. The results show that the boride layer on the surface of TC4 consists of TiB2 and TiB dual compounds. The boride layer is compact, uniform and less porous compared with that obtained at 1050°C (above β phase transus of TC4), and the hardness profile and brittleness of the layers are improved to a certain extent. Lower temperature boronizing can effectively prevent the growth of coarse β phase grains. Duplex microstructure is obtained in TC4 matrix, and the work piece distortion is reduced.

In this paper, the author analyses the problem and the situation of the campus acoustic environment on the basis of elaborating on the current situation of the sound situation. Combining of relevant investigations, the author focus on the noise status of a university in Shanxi monitoring and analysis, and subjective evaluation of the sound through the form of a questionnaire. The author also propose the method of the Campus Environment noise controlling and acoustic environment constructing.

The research of CS panel integration performance of energy saving, load bearing and decoration, shows that exterior materials reflection and absorption of solar radiation is one of the main factors that affects the thermal insulation and building energy efficiency. In this work the experimental detection data is analyzed both quantitatively and qualitatively in order to realize the influence of different solar radiation absorption properties from the outer decorative materials to the CS panel indoor thermal environment and energy-saving. The principle of energy saving optimization choice of the CS panel exterior decorative materials is proposed.

A re-parameterization transformation is discussed. With this re-parameterization transformation, a polynomial curve can be reformulated as a rational curve, with a parameterization that is optimal in the sense that no other rational representation of the curve approximates more closely arc-length parameterization. Computing instances are included.

In Australia, the distortions of light structures in expansive soil are widely reported, often such damages are due to the soil settlement caused by expansive soil swelling and shrinkage. Expansive soil covers large areas of land in this country and its behavior is complicated. Generally the expansive soil behavior is closely related with the water content. This paper gives a preliminary discussion of soil-water interaction in expansive soil in three aspects: effective stress, soil suction profile and soil water characteristic curve (SWCC). Hopefully the investigation can help making the engineering guideline in real construction.