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A novel disk photo-bioreactor was employed to produce hydrogen continuously byRhodopseudomonas faecalisRLD-53. The ability of hydrogen production was investigated in different feeding times and HRTs. The maximum total hydrogen yield in the photo-bioreactor reached 2.68 mol H2/mol acetate at 48h HRT and 4d feeding time. Experimental results indicated that feeding times and HRTs are two key factors determined biomass in the photo-bioreactor and hydrogen production capacity. Moreover, the photo-fermentation hydrogen production is strongly dependent on light energy supply, the light conversion efficiency of the novel photo-bioreactor was 1.6%, it is higher than that that of most of reported photobioreactors. Therefore, these results demonstrated that the disk photo-bioreactor was a useful and efficient reactor in entire continuous hydrogen production.

Robust model predictive control with On-Off input of system is researched in this paper. The constraint tightening approach is adopted to ensure robustness of algorithm. By variable horizon approach, i.e. take the predictive horizon as the decision variable, the property of finite-time arrival within an arbitrary target set is guaranteed. Convergence of the algorithm is proved, and the maximum predictive horizon for the states entry to an arbitrary target set is determined. Finally, the method is applied to the attitude control of exo-atmospheric aerocraft, the simulation results show the effectiveness of the proposed method.

This paper presents a method for selecting indexes based on cloud model. The natural language qualitative evaluation of water resources utilization efficiency (WRUE) indexes from several experts were converted into quantitative score values. The randomness and fuzziness of conversion process could be fully reflected. Based on the basic index set of WRUE and fifty experts` comments, cloud model was used to calculate each index`s value. Finally, eight indexes covering overall, agricultural, industrial and living industry were selected to construct the evaluation index system. Cloud model is convenient, objective, and the calculation process is simple. The construction of evaluation index system lays a good foundation for the evaluation of WURE.

The structure and properties of the fiber affect its processing and wearing performance of the textile product. There are 3 kinds of novel polyester fibers modified by copolymerization. To make good use of these modified polyester fibers and predict their processing and wearing performance, the structure and properties of the fibers were characterized by cross section, crystallinity, moisture regain, tensile test, DSC and TG. Results show that the 2 of the modified fibers are profiled fibers with lower crystallinity and higher moisture regain. The mechanical properties of the modified fibers are worse than that of the ordinary polyester, but much better than cotton fiber. The modified polyester fibers are more thermal sensitive than ordinary polyester fiber. The heat treatment temperature of them in the textile processing should be controlled more carefully than ordinary polyester fibers.

Dynamic fuzzy reliability models of mechanical components are proposed in this paper in the case of small samples of load. The proposed models are established based on the distribution of load obtained from a load history, which reflects the relationship among the occurrence frequency of loads with different magnitude in a given time period, rather than the distribution at each load application. To deal with the uncertainty of the distribution of load from a load history due to the randomness of the magnitude of load at each load application, the statistical parameters involved in the distribution of load are modeled as fuzzy variables. Explosive bolts are chosen as representative examples to illustrate the proposed models. The results show that reliability increases with the increase in the level of cut set. Besides, the dispersion of strength has great influences on the reliability and failure rate of mechanical components.

In order to meet the needs of the power communication device This paper discusses the key technologies of the power switching equipment based on ATCA structure, including network topology selection and rack management system, as well as a system performance test result is given. The test results show that the power switching equipment based on ATCA structure has good rack management ability, and it can monitor and adjust parameters such as system temperature. It can realize hot backup of the system, making the system with high reliability and high transmission bandwidth. I. INTRUCTION Power communication network comes into being in order to guarantee the safe and stable operation of the power system, and it is base of building smart grid. With future grid dispatching automation, network operators, market-oriented, and management of modern development, power communication network is a more important mean to ensure grid security, stability and economic operation, and it is the critical infrastructure of the power system. The future smart grid puts forward higher requirements for power communication network reliability, transmission bandwidth, flexibility and anti-disaster. Power communication network transmission services include the following four points: 1) Transmission of smart electricity transmission information, including line status, tower status, weather condition.

The transportation and separation of Cu(Ⅱ) through a dispersion supported liquid membrane(DSLM) consisting of 2-ethylhexyl Phosphonic Mono-(2-Ethylhexyl) in kerosene, supported on the polyvinylidene fluoride membrane(PVDF), is studied. The effects of pH value in the feed phase, volume ratio of liquid membrane phase and hydrochloric acid, concentrations of HCl in the strip phase and initial concentration of Cu(Ⅱ) in the feed phase are also researched. The results show that copper ion can be transported effectively when pH =5.25 in the feed phase, the volume ratio is160:40, concentrations of HCl in the strip phase is 4.0mol/L. Under the optimum transport conditions, when initial concentration of Cu(Ⅱ) was 2.00×10-4mol/L, the transport rate of Cu(Ⅱ)was up to 94.7% in 130 min.

Due to long-term coal mining, causing ground collapse and water system damage. Therefore, it is necessary to restore the water system in coalmine subsided area with higher level of underground water and put forward the unified mode of restoration. On the basis of investigation and study, through inquiring a large number of references, the study area is divided into two functional areas: Fertile farm belt and Ecological control area. Ecological control area is further divided into deep water ecological lake area, ecological island area and shallow water planting areas. This classification not only make the water resource allot scientifically, but also realize the stereoscopic development. Meanwhile, based on the division of functional areas, it strengthens surface water, groundwater and soil water restoration to realize the restoration of water system. By building an embankment and repairing irrigation and drainage facilities to remove water logging, realizing the restoration of surface water. Establish drainage system with deep and dense ditches, to reduce the groundwater level and prevent crops staying in water for long time. Finally, put forward a filling mode, which the clay-coal gangue, coal ash and sludge are mixed in appropriate proportion when filling soil, to improve the soil reclamation filling. This mode can realize the migration of soil moisture to promote crop growth and improve the output of the land.

Extension is a new subject which solves sontradictory problems. It studies the extensive possibility of things and the rules and methods of exploitation and innovation with formalized model. The extension control theory and method has provided the basis theory and method for people to solve the existent contradictory questions in the automatic control system such as stability, accuracy and speed.This paper briefly introduces the related basic concepts of extension control, such as the structure of canonical extension control, extension set of character status of basic extension controller, and general extension control algorithm, and so on. Also presents the extension applition in power systems. The future work and prospect of development are described.

The Fe3+,La3+ co-doped polyvinyl acetate(PVAc)/titanium dioxide(TiO2) composite nanofibers were firstly prepared by combining sol-gel method and electrospinning process, and then calcined under 300°Cand 600°C separately. The effect of calcination temperature on structures, surface morphologies, crystalline state, elemental composition and photocatalysis activity were characterized by scanning electron microscope (SEM), atomic force microscope (AFM), X-ray Diffraction (XRD) , energy dispersive X-ray spectroscopy (EDX) and ultraviolet-visible spectrophotometer(UV-Vis) respectively. The SEM and AFM images showed that the nanofibers were randomly distributed to form the fibrous web, the diameters and surface roughness of nanofibers were obviously changed as the calcination tempreture increasing. The EDX analysis and XRD spectra indicated the percentage of C,O,Ti elements varied as the increase of tempreture and the formation of anatase crystal form TiO2 nanofibers under 600°C.The UV-Vis curves revealed strong adsorption to methylene blue under 600°C calcination.

A label free impedimetric immunosensor for the determination of aflatoxin B1 (AFB1) was fabricated by immobilizing anti-AFB1 onto Poly o-phenylenediamine (PoPD) electropolymerized film modified gold electrode by glutaraldehyde (GA) cross-linking. An electrochemical interfacial modeling of biomolecular recognition was recommended and reasonably interpreted. EIS technology was employed for the quantitative determination. The linear detection concentration ranges of AFB1 were 0.03~0.1 μg/mL and 0.1~0.7 μg/mL. The detection limit was 2.8×10-8μg/mL. The immunosensor could be reused more than 10 times when renewed by HCl-Glycine buffer solution (pH 2.6).

The poly(lactic acid) (PLA) was modified by 4,4'-diphenylmethane diisocyanate (MDI) successfully prepared to improve the stability of PLA. The MDI and the hydroxyl terminated PLA could form PLA modified by MDI (MDI-PLA) via addition reaction. The structure of MDI-PLA was confirmed by FTIR and its degradation properties were investigated. The results showed that the pH of the aqueous media and the ion strength together played an important role in the degradation behavior of the PLA and MDI-PLA. Both of the PLA and MDI-PLA had the highest degradation rate in 0.01 M NaOH. It offers the best stability to hydrolysis resistance by adding the 0.6 wt% of MDI to the PLA materials，and have a more stable of 15 times than unmodified PLA.

The friction and wear properties of AISI 52100 steel and DLC coatings were evaluated while being lubricated with silicone oil, PAO and PAG lubricants by using a reciprocating ball-on-disk sliding UMT tester. The morphologies of original surface and worn surfaces for the DLC and Ti doped DLC coatings were observed by using a scanning electron microscope. The results show that the DLC coatings have better tribological properties than AISI 52100 steel under silicone oil, PAO and PAG lubrication conditions. In addition, the DLC coatings have much better wear resistance than the AISI 52100 steel.