Considering the conditions of the environment for the growth of fungi, we designed the intelligent fungi training monitoring system based on ZigBee wireless communication, put forward the design idea and principle circuit for the control factors, and gave the general design plan. With ARM micro controller...

In this paper, the new use of new materials for conservation landscape, especially wood plastic composites, is used as a starting point. The principles and strategies for the application of new materials in contemporary urban landscape are analyzed, and the artistic modeling design and example of plastic...

The fast sealing technology of mine roadway is an effective method to isolate spontaneous combustion zone, poisonous and noxious gas source or gas accumulation area by establishing effective sealed wall quickly. Aiming at the problems of poor sealing effect, cumbersome operation, difficult construction...

Based on the full monitoring of mine ventilation system by a safety surveillance control system, the feedback control is applied to design a hierarchical control model. It mean that the total mine air volume is controlled by a main fan power supply module converter, the roadway area is controlled by...

This research uses only surface control points to parameterize the 3D geometry of a muscle body. Extension from surface to interior is achieved using a harmonic interpolation in cross section and in the lateral direction using NURBS. This representation preserves geometric smoothness, and allow muscle...

Based on the three-dimensional phase field model, the competitive growth of columnar crystals under the conditions of different anisotropies and different subcooling degrees in the directional solidification process was simulated with the Al-2%mole-Cu two element alloy as an example. The influence of...

Different volume ratios of Al2O3 powder and copper powder are mixed, and a copper-based composite coating is prepared on a pure copper matrix by low-pressure cold spraying technology.The hardness and bond strength of the coating were tested, and the cross-section of the coating was observed and analyzed...

Mathematical model of potato slices under process-based temperature and humidity integration control of tilted tray air impingement drying were investigated under different parameters. Results indicated that the Weibull distribution function simulated the drying curves of potato slices under PDTHIC drying...

Microwave intermittent drying kinetics of banana slices were investigated under different power levels (250, 400, 550 and 700W), sample thickness (3, 6, 9 and 12mm), heating time (11, 14, 17 and 20s) and intermittent time (50, 60, 70 and 80s) during each cycle. Results indicated that all the four factors...

This paper models and analyzes the photovoltaic power generation and wind power generation in the wind-solar hybrid generation system. A neural network inner membrane controller based on wind-solar hybrid power generation system is designed. The closed-loop control system is used to make the output power...

The wave force analysis of jacket platform is hard in the design. PIPE59 element in ANSYS software has the function of computing buoyancy, wave and current load. By control the unit parameters, can simulate current load automatically. In the Water Table menu input eight direction wave flow parameters...

The studying about the seismic performance of shallow and spherical shells with ribs and rings is very lack. So it is necessary to study its dynamic response under earthquake. In this paper, the finite element model is established by ANSYS software. The first 10 orders of natural frequency and mode shape...

In recent decades, developing new energy saving light source is an important research in light-fishing industry. With the development of semiconductor technology, people want to replace traditional metal halide lamp with more energy-saving LED lamp. In this paper, Two phosphors, LuAG (Lu2.945Al5O12:0.055Ce)...

When the quadruped robot run high-speed movement, Frequent or large impact force from the ground on the robot system cause significant damage to stability and reliability of the hydraulic system and robot itself. Through decomposition the high-speed running process, the touchdown, slippage, and stationary...

In order to analyze electronically controlled marine diesel engine performance and design reliable control algorithm, According to SULZER 7RT-flex60C type electronic control diesel engine, estab-lished marine electronically control diesel propulsion system simulation model by mean value model. Because...

The oil-paper transformer is widely used as the common insulating device in the electrical industry. The transformer with the reserved primary coil and the secondary coils was filled with the transformer oil by the vacuum pouring process. Its insulating property was tested by the partial discharging...

The 3D model of the oil-paper insulated transformer was constructed by SOLIDWORKS and simulated by Moldflow to optimize its vacuum-degassing technology. The number of the inside oil papers, the space of the adjacent two oil papers, the number and its distribution of the setting oil inlets are discussed...

The "golden section" is an ancient mathematical method, it is ubiquitous, and created all things beauty of harmony, over the years has frequently been applied to art, painting, design and other fields, and often play the beat all effect. According to many years of engineering practice, the" golden section...

Gas coal, 1/3 coking coal, anthracite and lean coal are used to blend coal, asphalt is used as binder, coal blending scheme is formulated according to the requirements for each index of coal blending. The best scheme of coal blending is: 35% of the lean coal is combined with 30% 1/3 coking coal, 20%...

Modern large-scale gas turbine’s rotor is mainly rod fastening rotor. The contact friction force between wheels, the pre-tightening force of the rod and bearing system have an effect on the rotor dynamics. According to the structure characteristics of the rod fastening rotor, contact model is established....

In this study, a series of corrosion tests are performed on 12 sliding pairs under complex marine environment and earthquake. Periodic-salt-spray accelerated corrosion test and wet-and-dry-cycle accelerated corrosion test are used to simulate the splash zone and atmospheric zone for an sliding pair....

As a kind of smart material, Shape memory alloy spring has multiple uses, especially as a good potential for solving vibration isolation problem. In this paper, a phenomenological model for describing pseudo-elasticity of shape memory alloy (SMA) spring has been developed. The differential hysteresis...

The quasi-single crystalline silicon directional casting processes with ultrathin plate seed layers were studied. The experiments results showed that the directional casting with the plate seed layer could solve the cross pattern issue on the quasi-single crystalline silicon wafers produced with square...

To develop smooth finite element analysis of flat panel display products, we develop an automatic mesh generation system suitable for complex and thin shape objects. In this paper, we propose a new mesh generation technique suitable for flat display products by analyzing existing mesh generation algorithm....

The effect of Y and B content tailoring on the crystallization behavior and corrosion resistance of Fe76-2xY4+xB20+x(x=0 and 2) glassy alloys have been investigated. The tailoring of yttrium and born content enhances the thermal stability of x=2 alloy, alters the crystalline mode from a two-stage of...

In this paper, fatigue tests of butt-welded joints, under four-point bending cyclic load, were conducted to investigate the influence of welding deformation on fatigue crack initiation life. It is found that the distribution of residual stress around the weld toe is changed depending on the welding deformation....

Leak repair clamp is the preferred method for permanently repairing pinhole and crack-type pipeline leaks underwater, and the locking mechanism is a key component of it. In this paper, through the analysis on the bite-in theory and the failure mode of the locking mechanism of clamp, three principles...

The thin layer of MnO2 nanowires with a three-dimensional (3D) porous network structure is uniformly supported on the surface of cordierite honeycomb ceramic (CHC) monolithic substrate by the in-situ deposition method. A series of characterizations of scanning electron microscopy (SEM), X-ray powder...

The manganese oxide (MnO2) nanosheets supported on cordierite honeycomb ceramic (CHC) were synthesized via in-situ growing hydrothermal method. The effects of CH3COOH precursor concentrations on the morphology, crystal structure and toluene purification activity of MnO2/CHC catalyst were mainly investigated....

Using image processing, recognition technology and edge extraction technology, the real particle morphology and distribution of TiC/AZ91 composites are obtained, and the finite element numerical calculation model with different particle shapes is constructed. With the help of ANSYS finite element software,...

The propagation and fracture process of void in magnesium single crystal at the nanoscale have been investigated using molecular dynamics simulation and embedded atom method at different temperature. The results show that the temperature has a significant effect on the potential energy and yield strength...

Copper oxide contains of bivalent copper and monovalent copper, which is widely distributed in earth resources. In this article, the copper oxide films were deposited on transparent conducting glasses (FTO) by magnetron reactive sputtering under different sputtering conditions of power and oxygen flow....

Firstly, using CAD software SolidWorks to establish a geometric model of the servo turret. Then, using HyperMesh to pretreat the model. In the established finite element model the equivalent contact area method was used to simulate the bolt connection. At the same time, the virtual material method was...

in this paper, the magnetic field and arc of a contact structure of 126kV vacuum interrupter are studied and tested. The magnetic field values of the contact structure is measured and compared with the results of simulation. The results of simulation are verified by comparing the results of the two calculations....

Mesoporous HZSM-5was prepared by alkali solution treating microporous HZSM-5, then Fe/ZSM-5 catalysts have been successfully fabricated by equal volume impregnation method. Their texture structure, crystal phase structure and acidity were characterized by N2 physisorption /desorption, XRD, SEM and NH3-TPD...

As a natural anti-buckling component, corrugated steel shear wall is adopted to increase the lateral stiffness of steel frames. Taking a 6-story office building as an example, a design method for corrugated steel shear wall was produced based on the shear strength design theory of steel members. In which,...

Using ring damper in the center brace could solve premature buckling and decrease residual deformation of the central brace. A design method for Composite Steel Ring Brace system was proposed based on current design codes. A nonlinear finite element model was established to study seismic behaviors of...

Based on the analysis of the breaking of the roof between the lower layers of the short distance thin coal seam group with different spacing, it is proposed that the roof of the short distance thin coal seam can be divided into three types according to its lithology and the development of joints and...

Effect of Al deoxidizing for Spring steel during LF Process is investigated in this paper. The deoxidation system includes aluminum precipitation deoxidation when tapping, then strengthening diffuse deoxidation with adding adequate aluminum to the surface of the LF slag. It is found that the inclusions...

The components of the flux are optimized and the environmental friendly flux with excellent comprehensive performance is prepared. Then the composition of the solder paste is optimized to prepare the SMT environmental protection and high efficient lead-free solder paste, and its performance is studied....

Fault tree analysis,as an effective method for reliability analysis and evaluation of engineering systems,provided an effective method for failure analysis of polishing robots with six degree of freedom.Through the qualitative and quantitative analysis of the fault tree,it is proposed that the damage...

Prefabricated concrete structure is composed of prefabricated components assembled on site. Because there are a large number of joint joints between prefabricated components, the joint connection problem of prefabricated components becomes the key to the reliability of prefabricated concrete structure...

Ni60 coating and Ni60/WC coating were prepared on the surface of H13 steel by PTAW, and some Ni60/WC coatings were annealed. The effect of annealing temperature on the microstructure of Ni60/WC coating was studied. The thermal fatigue test of the coating samples were carried out by a homemade thermal...

The transmission has a great relationship with the success of acceleration or deceleration and shift in agricultural machinery operations. The operating environment of agricultural machinery is complex and it is easy to cause damage to parts. In this paper, a kind of transmission for small agricultural...

The experiment was carried out in the acidic conditions to test three kinds of organic compounds, the cetyltrimethyl ammonium bromide (CTAB), nicotinic acid and bromohexadecyl pyridine on the corrosion inhibition performance of metal Zinc by means of the experiment and testing methods of the static rotary...

Shot peen forming is an effective plastic forming method for integral panels with variable thickness used in aeronautical industry. 7050 aluminum alloy flat plates and 3-stiffeners panel were peen formed. The deformation behavior of those workpieces was investigated. The results reveal that the contribution...

In this paper, the effects of reduction temperature and carbon content on the preparation of silicon-aluminum alloy by carbothermal reduction coal fly ash were studied. The reduction products were characterized by XRD. The results showed that when carbon content was 1.15 or 1.3 times and reduction temperature...

In this paper, we investigate the dynamics of an inverted pendulum with two concentrated masses. The perturbation method is used to find the transition curves. We emphasize the difference between the case of two concentrated masses and that of one concentrated mass. Numerical simulations are carried...

The failure characters and damage mechanism of Sn3.0Ag0.5Cu/Cu as-reflowed solder joints under shear thermal cycling were investigated by special shape design for the experiment sample in this paper. The results indicate that fatigue damage mainly occurred within the solder far from the interconnection...

The finite element model of the internal rolling connection process for Titanium alloy tubes was established. The distribution of the elastic strain and the contact force were analyzed to reveal the sealing mechanics of the flareless union. The residual compressive stress was generated between the tube...