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TiNi/Al shape memory alloy (SMA) composite was fabricated by a vacuum hot-pressing method to investigate the phase , microstructure and mechanical properties. Phase analysis was conducted by XRD . Interface bonding between TiNi wire and Al matrix was observed by using SEM and EDS. Quasi-static and dynamic compressive mechanical properties of the composite were investigated by using electronic universal testing machine (INSTRON5985) and Split-Hopkinson Pressure Bar (SHPB),respectively. The experiment results show that new phases Ni4Ti3 and Ti2Ni precipitined from TiNi wire. Interfacial reactions occurred at the bonding between matrix and TiNi wire, creating a diffusion layer about 2μm thick. Both quasi-static and dynamic compressive mechanical properties are anisotropic , and the degree of the anisotropy increased with the increase of TiNi volume fraction.

The Environment Kuznets Curve (EKC) hypothesis was applied to explore the relationship between economic growth and heavy metal pollution of lake sediments in Nansi Lake basin. The indicator of economic growth (IEG) was extracted from ten important economic indexes by the method of principal component analysis based on the data from 1978 to 2007. Some representative heavy metals including Hg, Cu, Br and Mn were chosen to analyze the level of heavy metals pollution in Nansi Lake basin. According to the previous research results that the deposition rate of Nansi Lake sediments was 3.5 mm/a, Kriging interpolation method was used to segment the 10.5cm core into 30 parts. The coupling results show that there is an inverted U-shaped curve between IEG and the element Br, half of an inverted U-shaped curve between IEG and Hg and Mn, and a N-shaped curve between IEG and Cu.

With the rapid development of petroleum industry in China, the electrical heat tracing becomes very important for viscous oil transportation, while the heat insulation acts as the key to the application of electrical heat tracing. Rigid polyurethane foam has been widely used in long-distance pipelines for its advantages as the heat insulation material. However, there is also a lack of systematic analysis on the impact factors of such material, thus it is urgent to find out a practical method to distinguish the major impact factors. This paper introduces the Grey Relational Analysis (GRA) with its C# program, and it is proposed to analyze the actual impact factors of rigid polyurethane foam. The application shows that this method is practical, simple, rapid and accurate, so it suitable for similar applications in other fields.

The new kind of bio-based nylon 56 fiber has been synthesized by adipic acid and 1,5-pentanediamine, which was prepared by fermenting a variety of starch in straw. The resistance of the nylon 56 fiber to acid need to be studied because the problem of nylon fabrics often encounter reactions of chemical reagents in their processing, finishing and dressing. The factors of acid concentration, temperature and time affect the mechnical behavior of the fibers of nylon 56 ,nylon6 and nylon 66. Strength of all three nylon fibers have obvious decrease if treated in acetic acid concentration of 10 g/L, while have a straight line down if treated in acetic acid concentration of 100 g/L as time increases until to a half falling down at 120 minutes. Bio-based nylon 56 fibers treated in acetic acid concentration of 100 g/L for 30 minutes have a sharp reduction and almost lost its function at 50 minutes.

The new kind of bio-based nylon 56 fiber has been synthesized by adipic acid and 1,5-pentanediamine, which was prepared by fermenting a variety of starch in straw. The resistance of the nylon 56 fiber to acid need to be evaluated because the problem of nylon fabrics often encounter reactions of chemical reagents in their processing, finishing and dressing. Temperature and concentration play the main role on the alkali resistance among the factors that influence alkali resistant of nylon fibers: temperature, time, and concentration of alkali. Strength lose of bio-based nylon 56 and nylon 6 are slightly larger than that of nylon 66 when treated in caustic soda of 100 g/L at 98°C for 120 minutes, which means that nylon 56 fiber have good alkali resistant.

Shale of rich organic matter presents in Upper Carboniferous in Qaidam Basin, Northwest of China. Carboniferous shale thickness is between 100 ~ 300m in the Qaidam Basin, the shale includes silty mudstone shale, calcareous mudstone, shale and carbonaceous shale, and it is very favorable lithology type for shale gas. According to the shale organic geochemical analysis, the abundance of organic matter reaching the middle - good degree of hydrocarbon source rocks; the type of organic matter is mainly II2 and III type. The maturity of organic matter is mainly between 1 % -1.3 %. The Upper Carboniferous shale thermal evolution is in mature oil and gas stage. The Upper Carboniferous hydrocarbon-rich shale distribute stability, with great thickness. Shale gas potential in Upper Carboniferous is quite large.

A comparative analysis of the combination of flotation-magnetic -gravity separation with bulk-floatation process for recovering fine tin slime was carried out in a mineral processing plant. Compared to the bulk floatation process, the flotation-magnetic-gravity separation process resulted in a higher recovery of tin and showed advantages of small consumption of reagents and electric power, stable production index and easy operation.

With the extensive development of ways of teaching, multi-media device has become more accessible on campus and its inconveniences of both management and maintenance are also manifested. On the basis of RFID (Radio Frequency Identification) technology, the passage proposes an achievable solution aimed at handling inconveniences with the management and maintenance, including a functional management pattern and a design of RFID system, which uses a two-way authentication and SMS4 encryption algorithm, and moreover, the system adopts CFB pattern to improve its adaptability.

In this paper, the series converters of Distributed Power Flow Controller are the main object of study. Its mechanism of suppressing power system oscillations is studied by theoretical analysis and formula derivation, which relies on a single-machine infinite-bus power system, installed the series converters. Then based on the mechanism, adopting the classic PI control and the damping controller, designed the transient stability control loop for the series converters. Finally, simulations performed by PSCAD/EMTDC, the results show that DPFC device can effectively suppress oscillation and improve system stability.

The new generation of smart substation puts forward higher requirements to sensing technology. Based on the needs of these requirements, four kinds of special optical fiber sensing technology in power systems were researched: all-optical current transformer, distributed temperature sensing technology, fiber grating vibration sensing technology and fiber Bragg grating sensing technology. These kinds of optical fiber sensing technology for the new generation of smart substation to enhance its performance were analyzed. Finally, based on the fiber Bragg grating sensing technology, the online oil and winding temperature monitoring system was constructed for the new generation of smart substation.

In order to reduce odor emissions such as NH3 and H2S, this study designed experiments to investigate the effects of bentonite and β-cyclodextrin on producing and releasing H2S and NH3 during kitchen waste composting. All experiments were performed in simulated composting device. The results showed that the productions of H2S were reduced by 16.4% and 13.7% for the treatments of 2% and 3% that compared to addition 1% bentonite, the productions of NH3 were reduced by 0.1% and 54.8% for the treatments of 1% and 3% that compared to 2% bentonite addition. For the treatments of β-cyclodextrin addition, the productions of H2S were reduced by 33.9% and 31.0% for the treatments of 1% and 2% that compared to addition 3% β-cyclodextrin, the productions of NH3 were reduced by 30.8% and 23.5% for the treatments of 1% and 3% that compared to 2% β-cyclodextrin addition. After integrating the reduction of NH3 and H2S emission, 3% bentonite and 1% β-cyclodextrin addition are the preferred during kitchen waste composting. Compared with bentonite and β-cyclodextrin, β-cyclodextrin is the better additive for the odor control during kitchen waste composting.

The flotation is the effective method to fine coal separation, but the cost is higher and flotation reagents pollute circulating water system. In this paper, the JiuLiShan coarse coal slim was classified, the interception of 0.25 mm was collected, fine coal float-and sink test was carried out. For the-0.25mm coarse slime, compare the flotation, conventional coarse coal slime separation and new slime separator separation, the results show: underflow ash increased by 12.4%;the new slime separator is suitable for the 0.25 mm granularity fine coal slime, can be applied to lower fine slime ash, raising cleaned coal yield.

In this paper, the antibacterial property of hemp fiber was studied before and after extracted with ethanol. Simultaneously, the chemical composition of ethanol extract from hemp fiber was analyzed and characterized by UR and FT-IR. Experiment results show that, the antibacterial property of hemp fiber decreased after extracted with ethanol. The Inhibitory rate to Candida albicans decreased from85.7% to 64.4%. The Inhibitory rate to Staphylococcus aureus, Escherichia coli and Candida albicans deceased as extraction time prolonging, and attained equilibrium after about 4 hours. Through experiments and date analysis by using FT-IR and UV, hemp fiber contains chalcone. It is initially argued that the active anti-bacterial constituents of hemp fiber may be alkaloids, flavones and saponins.

Electrostatic discharge is a familiar interfere. Repeatability of discharge current is poor. Transmission line pulse (TLP) is used in study of immunity of a microcontroller. A TLP generator is first manufactured with the rise time of output pulse less than 1ns. Then couplings by electric field probe, magnetic field probe and direct injection are presented. And immunity test of a microcontroller is done by using the TLP generator and probes. Results show that the tested microcontroller is more sensitive to magnetic field interference; reset pin and crystal oscillator pin of the chip are more sensitive than other pins under action of direct injection interference.

Hydraulic classifier is widely used in the mill plant，But the design of traditional hydraulic classifier is simple，less controllable factors, cause the inaccuracy of Classifying product particle size，low classification efficiency. In order to solve these problems, the paper puts forward a new hydraulic classifier, we can improve the efficiency of classification by improving the appearance structure of hydraulic classifier and taking two pieces of top water. In the lab，the classification test was conducted with the coarse slime (0.9~0.3 mm, 0.3~0.074 mm) from Yanma coal preparation plant under the two phase of water supplying. The results of test show that by using two phase of water supplying, the new hydraulic classifier Can improve the classification effect of coarse coal slime.

Starting from the function of water resources to the social economic development, using the method of vector module, this thesis makes the analysis and evaluation of Enshi water resource carrying capacity. The results show that the water resource carrying capacity maintain its wide between 0.0884 to 0.1275 in 2007-2011, which shows that the carrying capacity of water resource in Enshi can meet the needs of social economic development.

The investigation was carried out to study the effect of a novel process of surface modification, surface nanocrystallization by high energy shot peening (HESP), on osteoblast proliferation and differentiation. A disc of pure titanium was processed to HESP in a commercial shot peening equipment, to create nanostructure at the surface. The surface microstructure was characterized by SEM and osteoblasts were co-cultured with the surface nanostructured titanium and unreceived titanium surface to evaluate their biocompatibility. The nanostructured surface layer on titanium was successfully processed by HESP, and the nanosized grains were about 60 nm in diameter and inhomogeneous distributed on the surface of n-Ti. The results also confirmed the proliferation and differentiation of osteoblasts were highly improved on surface nanostructured titanium. This finding suggests that there is high potential of this novel surface modification process which could enhance bone tissue growth of dental implant.

The sport shoes should have moisture absorbing & quick drying property, the quick-drying property of the shoes is affected by the shoe material such as upper, lining and insole. In this paper, three types shoes were prepared with hemp/polyester blended fabric, cotton and polyester. Their quick-drying properties of were studied using methods such as static simulation and animated simulations. The hemp/Polyester shoe possesses better moisture absorbent and quick drying property.

Introduced the Design and Implementation of fire monitor terminal base on the hardware platform of ARM. The image quality is improved with the use of CCD monitoring camera to capture image, and Pan/Tilt/Zoom are used to focus the fire area, enhance the accuracy of fire image recognition. This paper presents the system architecture and its functional characteristics. Emphasis is put on the hardware design of image capture and Pan/Tilt/Zoom control module. Finally, the software structure and implementation is described and the laboratory result is given. Compared with other similar image monitoring system, this system has the advantage of simple structure, high image quality, stable and reliable, feature-rich, etc.

Mesopore activated carbons were prepared using hemp stem as feedstock by air-phosphoric acid activation method. The crystallite size of hemp stem-based mesoporous carbon is small, and its pores is larger. The phosphoric acid solution concentration has a signification effect on pore structure and adsorption property of mesopore activated carbons from hemp stem. The mesopore activated carbon attained at phosphoric acid solution concentration of 50% exhibits a maximum BET(Brunauer Emmett and Teller) specific surface area of 1351m2/g, total pore volume of 1.21 cm3/ g, mesopore pore volume of 0.90 cm3/ g and a mesopore fraction of 74.4%. And the resulting carbon has smaller crystal size, developed pore structure, wider pore size distribution.

The hemp-stalk powders exhibit a certain degree of antibacterial properties, the antibacterial rate is about 41% against Staphylococcus aureus, about 74% against E. coli, about 50% on against Candida albicans respectively. Extract the hemp-stalk powders with petroleum ether, ethyl ether, ethanol, 75% ethanol, water, the order of solvents were ranked by the polarity. The effective antibacterial ingredients in hemp could be extracted with petroleum ether, ethanol, 75% ethanol by the horizontal comparison of antibacterial rates and antibacterial changing rates.

This paper designed method for non-volatile data storage using MCU internal data Flash, certain data Flash sector is divided into multiple data partitions, different data partition storage data copies in different historical time, the current data partition storagethe latest copy of the data; In the data read operation, first calculate the latest data copying Flash storage location, then directly reads the address. In the data write operation, first judge if the data writing position is already erased, if not,write data in next partition, while copy the other data in the current partition to the next partition; if the write position has been erased, write data directly to the current partition. This method is similar to EEPROM data read and write, easy to operate, and give a simple application interface, and can avoid the sector erase operation, to improve storage efficiency, while increasing the service life of the MCU's internal data Flash.

P-doped SiO2 were prepared by PECVD and one metal shadow mask self-assembled method was used for fabricating oxide thin film transistors gated by such proton conductors. Proton conduction of these films was demonstrated and electrical characteristics of oxide thin film transistors gated by such proton conductors were discussed. Due to excellent proton conduction and big capacitance density, oxide thin film transistors gated by such proton conductors have obtained excellent performances with mobility of 48.39 cm2/Vs, threshold voltage of-0.36 V, subthreshold swing of 0.13 V/decade, Ion/off ratio of 3.2×106 with the relative humidity of 30% at the room temperature.

The thyristor has been widely used in many fields since it has been invented, and has promoted the development of the DC transmission technology rapidly. The increasing temperature of its junction may cause serious hazards. Because of this, a variety of methods that can obtain the junction temperature has been summarized in this paper, such as the indirect measurement method, the direct measurement method, the equivalent thermal impedance network method and the numerical calculation method, etc. Summaries have been made in different occasions which these methods were applied. It also compared the advantages and disadvantages of each method and pointed out the developing trends and researching directions in the future.

This paper use CFD software for geometric modeling and structural mesh for the Cone Hindered Settling Hydro-sizer and then apply the Fluent software for three-dimensional CFD simulation. Using RNG K-ε two-equation turbulence model and Swirl Dominated Flow model respectively, and the top speed of different feeding liquid two-phase flow of water under medium CFD numerical simulation results grader internal flow field characteristics.

7075-T651 aluminum alloy are widely used in aeronautical applications such as wing panels, but there is no corresponding constitutive model for it now. In this paper, the flow behavior of 7050-T651 aluminum alloy was investigated by Split Hopkinson Pressure Bar (SHPB) and quasi-static compression experiment system. The strain hardening parameters were obtained by quasi-static compression experiment data, and the strain rate hardening parameters at various strain rates (1000-3000s-1) and room temperature, and the thermal softening parameter at various temperatures (20-300°C) where strain rate is 3000s-1 were obtained by SHPB experiment data. Then the constitutive equation of 7075-T651 aluminum alloy is obtained based on Johnson-Cook constitutive equation model.

On the basis of the coal quality characteristics, the screening and drifting tests have been carried out to investigate the separability of the coals in the inclined shaft coal samples of Chenghe Wangcun coal mine. The results showed that the mine raw coal seams are medium ash, high sulfur and medium volatile coals. The screening test results showed that the water content and sulfur content of coals samples in each grade after sieving essentially remained the row coal characteristic. Heating value increased with the decrease of particle size, but ash content decreased with the particle size. The float-and-sink tests showed that when the given clean coal ash content was 10%13% and 15% respectively, the coal samples were in the extremely difficult degree, medium separability degree and medium separability degree respectively.

Partial discharge is an important content of insulation monitoring of high-voltage power equipment, which generates high-frequency signals and real-time monitoring data is of great quantity. Simultaneous detection of multi-channel signals faces technical difficulty, and of high cost and poor reliability, it can also cause unnecessary waste of resources. In accordance with the characteristics and needs of partial discharge monitoring system at substation site, the concept of time-division multiplexing technology in communication technology is adopted into the multi-channel signal acquisition and measuring system, which using multiplexer MAX4638 and virtual instrument. The designed multiplexer for the partial discharge monitoring overcame several shortcomings, such as hardware resources consumption, poor reliability and high cost in multi-channel synchronous acquisition. By using of polling method to achieve one detection device for the time-sharing acquisition and processing of multiple devices or signals, this device can greatly enhance the on-line monitoring system economically and practically in the field application.

The modified sizing nozzle with excellent performances was successfully prepared by using of Mg,Y-PSZ as aggregates, Mg,Y,Ca-PSZ as fines, adding a certain amount of Al2O3-ZrO2composite powders prepared by sol-gel. Effects of magnesium aluminate spinel in-situ synthesized in modified sizing nozzle on its performances were studied in this experiment. The results show that, the content of cubic zirconia in the sizing nozzle was decreased with the increasing of Al2O3-ZrO2composite powders; the samples of modified sizing nozzle have no diameter-expanded after 30 hours service. The use effects are obviously better than that of Al2O3-ZrO2composite powders free. The main reason is that a new bond phase magnesium aluminate spinel was in-situ generated through the reaction between Al2O3in Al2O3-ZrO2composite powders and the stabilizer MgO from partially stabilized zirconia in the sintering process at high temperature. The spinels embedded in the substrate of zirconia grow further and fill between zirconia particles. This prevents the stabilizer of CaO further desolventizing and also stop losing the eutectics formed by the reaction with compositions of molten steel. Therefore, the stability of zirconia and the corrosion resistance of the sizing nozzle were improved.

This Paper studied the typical PD in GIS by ultrasonic method. A GIS PD simulating and testing system is established, including a PD simulating system, an ultrasonic detecting system and a conventional pulse current method measurement system. The thesis focuses on four typical kinds of PD signals in GIS, including metal particles, bad contacts on high and grounding potential conductor, the protrusion on the high potential conductor. The statistics characteristics are obtained which include N-Φ spectrogram (relationship between discharge frequency and discharge phase Spectrogram) and Umax-Φ spectrogram (relationship between discharge amplitude and discharge phase Spectrogram). Experimental results show that low-frequency ultrasonic sensors can detect this four PD signals， signal spectra analysis shows that ultrasonic signals of different statistical model are with different characteristics. The results provide test data for the pattern recognition of Partial Discharge in GIS.

Electrostatic Discharge (ESD) is a serious threat to electronic equipment. It can couple into equipment and disturb or even damage internal circuit. In the paper, the coupling of ESD to electronic equipment is presented. It includes the coupling of ESD to EUT and that to PCB. In the coupling of ESD to EUT, there gives five conduction interferences and shows that it’s important to obstruct ESD current and lead its route bypassing sensitive circuit. There also presents the coupling of ESD radiated field to EUT and PCB. It shows unintentional antenna structures and parasitic parameter circuits play important role in ESD interference. They need to be removed and restrained.

A Eu3+ activated YInGe2O7phosphor was synthesized by solid-state reaction and lithium carbonate was added to change the morphology and photoluminescence properties. Scanning electron microscopy showed large particle size and necking shape were obtained as the concentrations of Li+ ions increase. In the PL studies, the excitation spectrum of YInGe2O7:Eu3+ phosphors exhibited a broad band in the UV region centered at about 272 nm attributed to charge transfer state (CTS) band, which has a little shift after Li+ ion was added. As the Li+ ion concentration increased, the photoluminescence intensity of the red emission at 620 nm of Eu3+ ions was enhanced, and the optimized concentration of of added Li+ ion is 0.05. The results showed that addition of Li+ ion allows YInGe2O7:Eu3+ phosphors emitting relatively pure red light.

In this paper, the Indium Tin Oxide (ITO) thin films were prepared by a sol-gel dip coating method and then annealed at 600°C under different atmosphere (vacuum, N2 and 96.25%N2+3.75%H2). Their microstructure, optical and electrical properties were investigated and discussed. Suitable atmosphere can improve the crystalline of the ITO films, therefore the optical and electrical properties of the ITO films are improved. The uv-vis results showed the maximum of transmittance in the visible range (380-780 nm) of 85.6% and the lowest resistivity of 4.4×10-2 Ω-cm when the ITO films were annealed under 96.25% N2 with 3.75% H2 atmosphere.

In order to explore the variations and impact factors of soil nitrogen contents, 0-20 cm mineral soil under herb, shrub, Platycladus orientalis plantation of limestone mountains after restoration for 5 years and 10 years were collected and examined in Jinan, Shandong province. The results showed that there was different soil mineral nitrogen content under different vegetation during the natural succession and artificial restoration succession. Shrub community (14.35 mg/Kg) > herb community (12.73 mg/Kg); Platycladus orientalis plantation restored for 10 years (27.82 mg/Kg) > Platycladus orientalis plantation restored for 5 years (20.76 mg/Kg). NO3--N has highly significant positive correlations with soil organic carbon and total nitrogen content (r = 0.626, 0.564, p 4+-N has not significantly correlated with total nitrogen and organic carbon content (r = 0.218, 0.155). However, it has highly significant positive correlation with the NO3--N (r = 0.531, p 3--N and NH4+-N have highly significant negative correlations with soil pH (r = -0.657, -0.605, p < 0.01), respectively. But the correlation with the soil moisture was not significant (r = -0.181, 0.114). The research provided base information for the evaluation of restoration effects and restoration practice on the limestone mountains.

Sediment is an important ecological part of the lake and has a high storage capacity. Based on the cognition of Nansi Lake, this article presents the main sediment internal pollution in Nansi Lake, including nutrient pollutants, heavy metal pollutants and persistent organic pollutants, then make some countermeasures to control pollution, which has certain guidance to the improvement of environmental contamination in Nansi Lake.

The virtual prototype simulation of the underground pumping system can’t realize the timing analysis with the ground pumping unit system. In order to solve this problem, the simulation analysis model of the pumped well virtual prototype was established via the multibody dynamics simulation software Adams by analyzing the working characteristic of the sucker rod string. The simulation was in accordance with the dynamic indicator diagram which verifies the correctness of the simulation analysis model of the pumped well virtual prototype and also offers a new analysis method for the underground pump dianamograph and pumping unit balance, etc.

In this study, polylactic acid(PLA)/ketoconazole(KCZ) composite microspheres were prepared by oil/water solvent evaporation method. Those drug-loaded microspheres were characterized in morphology using the scanning electron microscope (SEM). Fourier transform infrared spectroscopy (FT-IR) was used to determine the chemical functional groups in the sample and to analysis whether a chemical reaction occured between PLA and KCZ. The thermogravimetric spectra of PLA and PLA/KCZ microspheres were used to analyse the influence of KCZ on the thermal decomposition mechanism of PLA. Crystallinities of the KCZ and PLA/KCZ were analyzed by X-ray diffraction analysis (XRD).

Mechanical fingers that imitates human fingers were designed, and kinematic analysis and dynamic analysis of them were conducted. By using bracing wire and expansion bracket, each section of the fingers could bend to 90 degrees, and torque exerted on the finger could be comparatively large. Through theoretical design and simulation analysis, it can obtain the same effect as fingers of an adult when clamping, enclasping and picking up an object.

LGLT2 grease is a newly developed lithium based grease used widely in small rolling bearing of instrument and control equipment at high speed.In this paper the curves of the traction coefficient against slide-to-roll ratio of LGLT2 film are measured on a high-speed ball-disc traction force tester under the conditions of the varying rolling speed from 20m/s to 40m/s and the varying load from 20N to 40N.The experimental results show that the grease LGLT2 performs well under above conditions,demonsrating lower traction coefficients with the increasing rolling speed. Both T-J model and an exponential model are employed to fit the experimental data. The results show that there are high consistencies between the experimental data and calculation values obtained from both models.

Adopting the test rig of traction characteristics of grease-lubricated sliding bearing, the practical condition of sliding bearing was simulated and the traction coefficient of DGG Grease under different temperature, velocity and load was tested. Besides, the traction characteristics of the grease were also elaborated. The results indicate that the traction coefficient increases when the temperature gradually rises from room temperature while it gradually decreases when the temperature exceeds 85°C. Under the condition of high temperature and high pressure, the extreme pressure additive has obvious effects, the traction coefficient reducing and maintaining constant, so a better lubrication effect is realized.

Micro-environments of shoes cavity after strenuous exercise were simulated by using self-made experimental device. The moisture absorption and moisture desorption of the hemp/pet/cotton blend fabric with different content of hemp were investigated under different conditions of temperature and humidity. The result shows that hemp has very good moisture absorption and the highest evaporation rates among the three materials in the high humidity environment. It took less time for hemp to attain an equilibrium of water. These characteristics complement the hydrophobicity of polyester and the moisture liberation of cotton. Shoes with hemp/pet/cotton blend fabric could faster absorb the sweats in the shoes-cavity, and reduce the humidity effectively, then improve wearing comfort.

Using self - prepared fluorochemical surfactant, PTFE micropore membrane was modified to improve its hydrophobicity. The surface morphology of the membrane was observed by SEM and its Contact angle was determined by. The protective property of the membranes against mustard gas was evaluated using the break-through test. The result shows that, the thesis put forward a novel BC protection idea that through membrane surface modification the poisonous agent can be rolled into liquid spheres and slided away from the membrane surface automatically because of the low surface tension of the membrane, which stands out from the traditional methodology by quick poisonous agent surface expansion and evaporation on the surface of the BC protective material.

Aiming at a kind of multi-energy complementary isolated power system in Tibet ali area, which consists of photovoltaic (PV) station with storage device, hydro generator, and diesel generator, a new control strategy was presented. According to the power system characteristics, analyzed the new control strategy, it can realize the grid power output with zero steady-state error. In the DIgSILENT/PowerFactory simulation environment, building the multi-energy complementary isolated power system model and simulation based on the control strategy, the system can track the fast variation of the PV array output power or other output power. Two studied cases verify the control strategy.

This paper introduces the study of structure on EVA (ethylene-vinyl acetate)/hemp stem powder compound system. The micro behavior of EVA/hemp system was measured by SEM (Scanning Electron Microscopy), and its thermal properties were measured by DSC (Differential Scanning Calorimetry ). It indicates that hemp stem core has entered into EVA foaming system successfully when measured by FT-IR (Fourier Transform Infrared).

The AC-DC method (the AC method combined with the DC method) has integrated the superiority of the AC method’s easy measurement and the DC method’s reliability, so it has achieved some degree of use. The method before only took the ground resistor as the condition of combination, so it is not perfect. Based on deep analysis on the AC method’s reflect factors, this paper drew a conclusion that the reliability of the AC method is affected by the fault resistor and the line’s distributed capacitance. The paper took the impedance phase as the integration condition, using the AC method while impedance phase meets certain conditions, using the DC method on the other situation. This strategy combined the affluence of ground resistor and distributed capacitance effectively, so it can promote the application on spot of the AC-DC method.

From PTFE baseband prepared by three-dimensional drawing, after the processing of different temperature and time. And then by twisting, hot drawing and heat setting, the PTFE filament was prepared in appropriate tension conditions. The surface morphology of the resulting filaments was observed by SEM, the result shows that the uniformity of the PTFE membrane has been improved by using three-dimensional drawing process, hot drawing processes had a great effect upon the breaking strength and elongation at break of PTFE fibers. In order to keep ensure reasonable mechanical properties, the draw ratio in the range of 20 to 50 times to adjust the temperature controlled at 150°C to 300 °C.

Micro-environments of shoes chamber after strenuous exercise were simulated by using self-made experimental device. Under the different conditions of temperature and humidity, moisture absorption, water transmissibility, water retention and moisture liberation of stitch-bonded fabrics with different content of hemp was tested. According to multiple properties of the moisture-absorption and quick-drying, tested performance of five aspects were used to build the evaluation system about it. TOP-SIS (Technique for Order Preference by Similarity to Ideal Solution) and coefficient of variation method can calculate the degree of closeness of actual values and ideal values so as to establish a comprehensive evaluation method. The results show that when content of hemp is nearly 40%, shoe’s lining of stitch-bonded materials can obtain high performance, which can meet the requirement for shoe’s lining.

Traditional project management models have been difficult to adapt to the requirements of the organization and management for very large projects. Chongqing which has the moderate economic strength is first progress and the most smoothly in large-scale construction of public rental housing in the country. Therefore, the model and experience of the management of large projects from public rental housing construction in Chongqing has important theoretical and practical significance. The paper demonstrates that the model of government-led making decision, specifically management department managing, the state-owned enterprises as the owners making land reserves and managing investments and financing (GMS mode) has a higher efficiency on the management of large construction projects, can effectively solve the problem of multi-participant, short construction period and high security requirements. If taking into account the public participation making the GMS mode into GMSP mode, the management of large projects can better incorporate the efficiency and fairness.

A new hybrid film solar cell was made with a structure of Glass/ITO/PbS/P3HT/Al. PbS film was prepared by a simple solid-solid reaction and poly(3-hexylthiophene) (P3HT) film was obtained by a spin coating method. The solar cells are photosensitive in a large spectral range (extending from near infrared to high energy side regions). Without any special treatment, the cell with an area of 0.15 cm2 has shown values of open-circuit voltage (Voc) of 85 mV and fill factor (FF) of 0.33 under an illumination intensity of 100 mW/cm2.

Lead sulfide (PbS) magic cubes were prepared by a simple hydrothermal method without any organic solvent. The product was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and absorption spectrum. A solar cell, with a structure of Al/P3HT:PbS/PEDOT:PSS/ITO/Glass, was made. By a spin coating method, a hybrid film of poly(3-hexylthiophene) (P3HT) and PbS was prepared on the PEDOT:PSS layer. The solar cells are photosensitive in a large spectral range (visible and near infrared regions). The cells, with the area of 0.15 cm2 without any special treatment, have shown the values of open-circuit voltage (Voc) of 242 mV, short circuit current (Jsc) of 0.01 mA/cm2, energy conversion efficiency (η) of 0.01 % and fill factor (FF) of 0.31 under illumination intensity of 100 mW/cm2.