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Low-carbon consumption plays an extremely important role in low-carbon economy, and the low-carbon consumption behavior of college students is very important. This paper learned the status and problems of college student low-carbon consumption via questionnaire, analyzed the causes and proposed the countermeasures and suggestions.

Meteorological elements are the important factors influencing the background noise model of the infrasound station. In order to determine the specific impact of meteorological elements on the model and find out the background ambient noise root of infrasound station, the infrasound and meteorological data from international infrasound station I34 is processed and analyzed through root mean square research and power spectral density analysis. The results show that the wind speed, wind direction, temperature and pressure is the main factors influencing the infrasound station environment background noise, and the wind speed exercises the greatest influence on background noise. Analysis results can provide theory basis for the modeling of background noise for the infrasound station.

Using the user-defined model (UDM) provided by the power system analysis software package ( PSASP), This paper constructs traction power supply system model. The correctness of interface between user-defined model and PSASP is verified by independent dynamic characteristic program. It offers a new way of available practical model applying to power system simulation and research on the influence of traction loads to power system.

In coded-structured light three dimensional system, system calibration plays a vital role for the measurement accuracy. The camera calibration method is very mature, but the study about projector calibration is less. Therefore, this paper proposes a projector calibration method with simple calibration process and high accuracy. This method combines the Zhang’?s plane model calibration method with orthogonal phase shift coding. In calibration process, this paper uses phase shift coding pattern to establish the relationship of projector image and camera corner point coordinates. According to the image coordinates in the projector’?s perspective, we program and calculate the projector’?s internal and external parameters matrix based on the Zhang’?s plane model calibration toolbox. The results show that the proposed method is simple and flexible, the maximum relative error of the calibration parameters is 0.03%, and it meets the requirements of system calibration in medical or industrial fields.

Aiming at solving the problem of forecasting the dynamics of express delivering quality elements classification, the paper proposed a novel method integrating Kano model with GM(1,1) model which is effective to perform fitting prediction. An approach of fuzzy questionnaires to modify Kano questionnaires which considered as subjective is suggested, and the GM (1,1) model is used to estimate and predict data according to the quality classification of fuzzy Kano model. An empirical study in express industry is provided to testify its feasibility and validity.

Cold metal transfer (CMT) process is a modified inert gas metal welding process,which characterizes of low heat input and no spatter welding comparing with traditional GMAW process.In this paper,research of the CMT welding features of stainless steel sheet has been conducted.The effects of welding parameters including wire feed rate,welding speed and arc-length modification coefficient on mechanical properties and surface morphology were investigated.In addition,optical micrograph(OM) and scanning electron microscope(SEM) were used to analyze the weld microstructure,and microstructural characteristics were discussed as well.In the end,the optimum welding parameters which were used in real production and achieved good effect were obtained by means of orthogonal experiment.

This document researchs on 55kW GSHP black start based on 250kW/250kWh battery system and 50kW/10s super capacitor. The modeling methods of asynchronous motor, battery system, super capacitor and PCS are given. According to three black start conditions: direct start, star delta start and frequency conversion start, simulates and analyses the results. During black start, the max AC bus voltage drop reaches 60%, and hybrid energy storage system is able to effectively inhibit the inrush current.

Polyacrylate dispersants were synthesized by applying orthogonal array experiment method, among which the affecting factors include chain transfer agents: isopropanol (IPA). dodecyl mercaptan (DDM); initiators: benzoylperoxide (BPO), azobisisobutyronitrile (AIBN) and their contents, temperature, the content of acrylic acid and types of the monomers of solvation chains, of which poly (methacrylate), poly (ethyl acrylate), poly (butyl acrylate) were solvation chains. The optimal factors were obtained by comparing the viscosity decrease of the unsaturated polyester resin (UPR)/aluminum hydroxide (ATH) composites with different dispersants, and it showed that the dispersant with poly (butyl acrylate) as solvation chain whose length is around 7.0nm has the best result of improving rheological properties of UPR/ATH Composites and reducing systems thixotropy.

PP/PA6/APP/OMMT Nanocomposites were Prepared via One-Step and Two-Step Melt Intercalation. the Flame Retardation, Thermostability, Structure Characters and Hygrothermal Aging Properties of PP/PA6/APP/OMMT Nanocomposites were Studied by UL-94, OI, TG and TEM. the Results Show that Two-Step can Improve the Flame Retardation of PP/PA6/APP/OMMT Nanocomposites; when OMMT Content is 4% or 6%, the Flame Retardation Gets Tofv-0, and the Lois are 32.2% and 32.8% Respectively; OMMT Doesn’t Play an Obvious Role to Hygrothermal Aging of PP/PA6/APP/OMMT Nanocomposites.

In the exoskeleton robot motion capture system, the sensor characteristics not only should be small in size, light in weight, low power consumption, but also requires easy to wear, reliable real-time. In this article, an exoskeleton robot real-time control system is designed based on the existing fiber-optic sensor. The experimental data is analyzed by hidden Markov model. The system can distinguish between the human bodies six sports: rest, walk, run, squat, stand , on the slope, and it can realize the real-time control on the exoskeleton robot.

In many engineering, the moment will have the influence of the bending of the triangular plate. The bending problem of under a concentrated bending moment is discussed. The principle of mixed action with variables is applied to calculate equation, which are given two border and trilateral fixation without assuming the complicated function of placement. Then the corresponding equations can be attained basing on all kinds of boundary conditions straight girder and elastic thin triangular plate. So, fussy processes are overcome and this method is fitter for the problem to solve difficulty by the others method. This method is simple and clear, and by it the complicated solutions for the problems of cantilever triangular plate are simplified. The corresponding chart and the result are given. The result can be a reference for engineering and give an efficacious, simple, convenient method to design for bending plate of structures.

In order to obtain a chlorogenic acid platinum complex, The intermediate Pt(C6H14N2)(H2O)2(NO3)2 solution was synthesized from Pt(C6H14N2)I2 and AgNO3, and it was treated with the anion exchange resin to give the key intermediate Pt(C6H14N2)(OH)2. The key intermediate was subsequently reacted with chlorogenic acid in butyl alcohol. The complex structure and component were characterized by elemental analysis, ESI-MS, 1H-NMR and IR and the anticancer activity was measured by MTT method. The result showed that its structure was consistent with the title compound and had inhibiting effect on the growth of tumor cell lines in vitro.

In the present study, X80 and X100 grade high deformability pipeline steels have been processed by using TMCP and followed two-stage cooling process. The microstructures of the X80HD (HD, high deformability) and X100HD steels were both characterized by ferrite-bainite dual phase. The grains sizes of ferrite were mostly less than 5μm and the volume fractions were about 20~25% in X80HD and 10~15% in X100HD steel. The bainite structure in X80HD steel was granular bainite (GB); while in X100HD steel large amounts of lath bainite (LB) were also formed besides GB, and bainite grains were much finer. Ferrite-bainite dual phase microstructure has large strain hardenability that resulting high strength and high deformability combination. Both the steels exhibit high strength/toughness in transverse direction and high deformability in longitudinal direction. The X100HD steel with more volume of LB and less volume of PF has higher strength but lower deformability than that of X80HD steel.

Cr-Al-N coatings with the thickness of about 2 mm have been prepared in a magnetron sputtering system by reactive co-sputtering from a chromium target and an aluminum target in a mixed Ar/N2atmosphere. The effects of substrate negative bias voltage (VB) on the microstructure and critical failure load have been investigated by a scratch test as the VB varied from 0 to –150 V. The critical failure load reached the maximum value for the coating deposited under VB = –50 V, then decreased with VB further increasing. Re-sputter effect of The heavy bombardment of the ion to the substrate improve the critical failure load for the coating deposited under VB = –50 V. The decrease of the critical failure loads for the coatings deposited under –100V and –150 V probably resulted from the high microstrain in the crystal lattice.

Two kinds of X80 high deformability pipeline steels have been processed by applying two-stage cooling process (TSC) and heat treatment on-line process (HOP). The microstructure of TSC steel and HOP steel are polygonal ferrite (PF) + quasi-polygonal ferrite (QF) + granular bainite (GB) multiphase and QF + GB+ martensite-austenite (M/A) multiphase respectively. In HOP steel, the volume of M/A is much more and the size is much larger than that in TSC steel. Some degenerated M/A constituents are also observed in HOP steel. The HOP steel has shown higher tensile strength, lower yield ratio and lower uniform elongation than TSC steel. The strain-nI (instantaneous n-value) curve of HOP steel could be divided into two stages and the TSC’s could be separated to three stages.

A type of high modulus asphalt was prepared by mixing modifier into SBS modified asphalt and used for confecting HMAC-16 high modulus asphalt concrete with finished product of modified asphalt from Liaohe oil field. This paper investigates pavement performance of high modulus asphalt concrete and its practical application in bridge pavement. Results obtained by application in practical project show that the high modulus asphalt concrete is provided with outstanding high-and-low temperature performance and water damage resistance which are suitable for bridge pavement.

The effect of the combined action of hot work and heat treatment on the microstructure and mechanical properties of a Mg-2Gd-Nd-0.4Zn-0.3Zr (wt. %) (E21) alloy was investigated. Results showed that the solution treatment time of the ingot played a great effect on the mechanical properties of the extruded alloy. With solution treating time of the ingot increasing, the tensile strength of the extruded alloy decreased gradually, but the elongation increased greatly. The best combination of strength and ductility was achieved for the extruded alloy after the ingot solution treated at 520°C for 3 h, extrusion at 400°C and aging at 200°C for 16 h, namely ultimate tensile strength = 331MPa and elongation = 7.1%.

BCI and exoskeleton robots were introduced respectively in the first, and then the advantage of BCI in the exoskeleton control compared with other control method was described. Hardware and software was designed respectively in the paper: in order to achieve the hardware portable that used for gaining EEG, Emotiv collecting device and radio devices was used in the designed; a new way to judge the intentions of human body movement based on cumulative average method and nonlinear dependent method was put forward. Furthermore, a variable factor- was proposed to realize the motion models prediction of different accuracy requirements.