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It is well known that mid and long term electric load forecasting has many uncertain factors that influence the forecasting precision greatly, so every forecasting method has its limitation. Considering limitations of basic grey model and conventional improved models, a new practical method called combined optimum grey model for mid and long term load forecasting is introduced. The combined model is composed of partial error optimum grey model (GM) as well as equa-l dimension and new-information grey model. The forecasting algorithm can estimate model parameters, meet the requirements of dynamic power load and overcome random disturbances. Example analysis shows that the forecasting error is below 3 percent. Compared with conventional theoretical methods, the proposed scheme has the characters of simple computation, high forecasting precision and good applicability.

According to the definition of building information model (BIM), authors compare the merits of traditional project management information system (PMIS) with the one based on the BIM model and BPS framework. Then authors approximately analyze the functions of the PMIS of this framework construction and discuss how this system will interpretably operate in life cycle. Finally authors give some advices on the issues in designing process.

Based on Solidworks software, the three-dimensional model of two wheels scooter is set up. The finite element model of two wheels scooter is generated. Modal analysis of driving system and telescopic mechanism of bar on two wheels scooter is investigated. The first five orders natural frequency and major modes of driving system and telescopic mechanism of bar are clarified. The method and the result can be used as a reference of dynamic design and lay foundation for calculation and analysis of dynamic response for the two wheels scooter.

To optimize aflatoxin production of Aspergillus flavus on peanut, the response surface methodology were applied based on previous experiment. The results showed that the influence of water content of peanuts,time and relative humidity were obvious and were not linear relationship. The optimal aflatoxin production conditions were that water content of peanuts was12%, the time was 7 days, relative humidity was 80%.

The objective of this work is to study on preparation of peanut protein peptide by bacillus subtilis solid state fermentation method. Results indicated that soluble nitrogen concentration of protein peptide could reach 122.86mg/mL, 1, 1-diphenyl-2-picryl-hydrazyl (DPPH) and hydroxyl free radicals scavenging rates were 85.22% and 84.88%, respectively, under the following optimum conditions: nutrient salt solution of 16.3mL, bacterial suspension volume of 3.8mL, temperature of 45°C, and time of 41h. IC50values for scavenging of DPPH, hydroxyl and superoxide anion free radicals rates, iron and copper ion chelating rates, inhibition rate of anti-lipid peroxidation were 2.88mg/mL, 4.63mg/mL, 1.22mg/mL, 0.04mg/mL, 0.94mg/mL, 3.78mg/mL, respectively. When absorbance value of iron and molybdenum reduction capacities was 0.5, the required protein peptide concentrations were 7.28mg/mL and 1.85mg/mL, respectively.

A novel Pt-Sn bimetallic spherical microparticles electrode for methanol electooxidation was prepared by electrodeposition technique on nichrome substrate. The electrocatalytic performance of Pt-Sn electrode for methanol oxidation was investigated by cyclic voltammetry and chronoamperometry. The experimental results showed that deposited platinum-tin bimetallic microparticles enhanced the catalytic activity for methanol electrooxidation. Above all, anti-poisoning capability against CO of Pt-Sn bimetallic microparticles electrode was increased in comparision to pure platinum microparticles electrode. Moreover, the cost of preparing catalyst greatly decreased because of reduced dosage of contents of noble platinum on the electrode. This may be a promising electrocatalyst in the direct methanol fuel cells (DMFCs) and other liquid fuel cells field.

In the space restricted airtight environment that people lives in, detecting harmful gas by miniature gas chromatography is the practical requirement at present, however, PIDs performance is key factor that restrict the application of miniature gas chromatography, the redesign of the detectors gas route in this paper aiming at improve detectors stability observably, and schemed out miniature PID with high sensitivity, low detection limit and fast response. The result of the experiment shows that the detection limit is 0.04ppm, the sensitivity is 101mv/ppm,the stability is 0.04×10-6/24h,meeting the project requirement. Keywords: photoionization detector; ionization chamber; sensitivity; detection limit

The peripheral malfunction will cause the nodes fail to work when there is no central control node in the large scale sensor network. The network cant guarantee the continuity of the communication and service and the communication efficiency will be low in this situation. In order to fix the issue, the paper proposes a correcting fusion algorithm for the sensor network data communication. When the collision of the communication data happens in the sensor network due to the failure of the nodes, the correcting fusion algorithm can ensure the effective data fusion between the fault nodes and other nodes to guarantee the communication to the maximum extent. The experiment indicates the algorithm can increase the efficiency of the sensor network to achieve the satisfactory results.

Through the research on the change of system input and output energy in time-varying speed cutting, the influence of variable-speed waveforms on vibration suppression effect in time-varying speed cutting is quantitatively analyzed in this paper. A conclusion can be drawn that sine wave speed variation is better than triangle wave speed variation in vibration suppression.

The effects of H2O2 addition to degradation efficiencies of TiO2 and the mixture of TiO2 and HZSM-5 were investigated. When H2O2 concentration increased from 2 mmol/l to 8 mmol/l, methyl orange decoloration rates increased from 41% up to 90%. TiO2 concentration was 100 mg/l and decoloration rates varied with increasing H2O2 concentration. Decoloration of methyl orange increased from 45.3% to 90.3% when H2O2 concentration increased from 2 mmol/l to 8 mmol/l. Total decoloration of the dye mainly came from oxidation of methyl orange by either oxidation of H2O2 and photocatalytic oxidation process. There was a maximum H2O2 concentration in methyl orange degradation when using mixture of TiO2 and HZSM-5.

Thin-film nanofiltration composite (TFNFC) membrane consisting of polyethersulfone (PES) nanofibrous support layer modified by 3, 4-dihydroxy-phenethylamine (dopamine) and interfacial polymerization (IFP) polyamide selective barrier layer was obtained in this study. The hydrophilicity of PES nanofibrous membrane was tremendously improved as the water static contact angle changed from 81.6° to 26.83° by dopamine modification. An ultrathin selective layer was produced by IFP reaction between solutions of piperazine (PIP) and trimesoyl chloride (TMC) on the dopamine modified porous PES membrane. The TFNFC membrane presented relatively high permeate flux (~59.9 L/m2h) and high salt rejection (~98.9%) to divalent anion solutions (1000mg/L, Na2SO4) at a low pressure of 0.6 MPa. It could be believed that dopamine modification would be very efficient to fabricate the composite membranes with stable structure and high filtration performance.

Silver-coated PAN nanofibers have been prepared by a facile method that combined the electrospinning technique and electroless plating method. Dopamine was used to functionalize the surface of electrospun PAN nanofibers to form the chemisorption sites in order to assist electroless plating of silver. SEM and ATR-FITR results indicated that poly(dopamine) has been successfully deposited on the surface of PAN nanofibers. XRD and SEM results also showed that face-centred cubic (fcc) crystal Ag nanoparticles with uniform size were well coated on the surface of electrospun PAN fibers.

Photoelectrocatalytic oxidation of methyl orange on TiO2 films were investigated in KHCO3 solution. Electro-degradation alone could degrade little methyl orange in the solution. The film electrode prepared using PEG had less activity than the film without PEG. In the potential range from 0 to 1.3 V, degradation rate on film without PEG increased slowly until a sharp increase at potential of 1.2 V. Electrolyte concentration in the solution is not a key factor influencing degradation activity since the total potential was not high. With increasing reaction time, degradation rates on the two film electrodes increased at the same time, while the electrode prepared without PEG performed better than the electrode prepared with PEG.

Response surface methodology was used to optimize proteolysis of egg yolk solution using Alcalase and Flavorase according to three conditions, the ratio of two enzyme concentration (Alcalase and Flavorase), pH values and hydrolytic time. The responses degree of hydrolyzation (DH) and peptide yield were studied. The protein subunit from egg yolk was purified and hydrolyzed by Alcalase and Flavorase step by step. The results showed that the best ratio of enzyme concentration was 0.8% for Alcalase, and 0.4% for Flavorase to hydrolyzed 10% yolk solution. The hydrolytic time of the two enzymes was 2h respectively. Then the solution was incubated for 4h at 55°C while rotating at 60 r./min. To evaluate the hydrolysate, both the degrees of hydrolysis (DH) and the yields of the polypeptides were taken into consideration. The optimum ratios of enzyme and hydrolytic time were 2.43 and 1.14 respectively, and the optimum pH was 6.64. The optimized DH was 13.233%, and peptide yield was up to 45.573mg/ml.

In this article, the antioxidant activity of the crude extract from peanut hulls was tested with phosphomolybdenum complex method, the reduction of K3Fe(CN)6 and DPPH assay. The IC50 value for DPPH radical scavenging lied 14.86μg ml-1, and 28 μg mL-1 of PHF exhibited total antioxidant activity and reducing power which were comparable to that of the ascorbic acid standard at 52.41 and 15.41 μg mL-1, respectively.

Corolla and receptacle of Broussonetia papyrifera from South China were analyzed separately for chemical composition. In this plant’s corolla，the crude protein, crude fat and carbohydrates were 7.08％, 3.72％ and 64.73% respectively in dry weight. In the receptacle, the crude protein, crude fat and carbohydrates were 4.75％, 8.08％ and 67.03% respectively. Unsaturated fatty acids concentration was 68% of total fatty acids. The percentage of the essential amino acids (EAAs) in total amino acids was 34.52%in corolla and 27.96% in receptacle. Furthermore，many mineral celements composition and vitamins are rich in B. papyrifera flowers. In corolla, calcium is 10015 mg/kg, magnesium is 1989.6 mg／kg, zinc is 62.6 mg／kg, iron is 306.6 mg／kg, VE is 1.35mg/100g．These results suggest that, the fiowers could be used in dietary supplements preparations or as food additives.

The cell wall of peanut skin was destroyed by cellulase enzymolysis from peanut skin fermentation, which was beneficial to extract proanthocyanidin. The extraction conditions of proanthocyanidin from fermented peanut skin were studied according to orthogonal experiment based on single factor experiments. And the optimum conditions were obtained as follows: extraction time 40min, extraction temperature 55°C, Concentrations of ethanol 45%, solid-liquid ratio 1:15. The extraction rate was 16.17 %.

In order to exploit and utilize the peanut protein resource and produce high additional value protein products, the preparation technology of peanut polypeptide from peanut protein isolate was investigated using Alcalase. The effects of influencing factors, enzyme dosage, substrate mass fraction, hydrolysis temperature, hydrolysis time and pH value, on hydrolysis was studied during the process of Alcalase hydrolyzing peanut protein isolate by single factor experiment and response surface methodology central composite design. The regression model for the relationship between the influencing factors and the soluble nitrogen mass concentration was established. The optimum parameters for Alcalase enzymatic reaction were obtained as follows: pH value 8.0, enzyme dosage 4762U/g substrate, substrate mass fraction 5%, hydrolysis temperature 50°C, hydrolysis time 180min, and then the soluble nitrogen mass concentration reached to 16.28mg/mL.

The purpose of this paper is to investigate a new type of resin of chitosan cerium encapsulated green tea extract microspheres (RCCM-GTE) prepared by the reversed-phase suspension cross-linking polymerization and study the scavenging activity against DPPH free radical. The results showed that RCCM-GTE was a type of deep brown-yellow spherical resin with smooth surface and it presented uniform and narrow particle size distribution as determined by the Laser Particles Sizer. The Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES), Fourier Transform Infrared Spectroscopy (FT-IR) and differential scanning calorimetry (DSC) study demonstrated that there was cerium existing in RCCM-GTE. The polyphenolic compounds existed in RCCM-GTE and the total content of polyphenolic compounds encapsulated in RCCM-GTE was found to be 92.550±1.145 μg/g. It is considered that the good antioxidant activity of RCCM-GTE was the comprehensive results of the action of tea polysaccharide-protein conjugate, polyphenolic compounds, cerium and Schiff base chitosan. Investigation showed that a lot of extracts coming from agriculture and food industry contain reactive components of polyphenolic compounds and polysaccharides. It can be effective in protection of human beings from free radical damage if these extracts are directly or after the extraction and purification added to food as natural food antioxidant or they are prepared micospheres reacted with some biopolymers through coordination as a health food. Then the emerging area of research on encapsulating GTE in chitosan cerium resin must have a broad developing prospect.

We researched the shock-cushioning performance of different shape Aluminum foam-polyurethane composite material, which is a combination material with the polyurethane as base body and the aluminum foam as reinforcing body. The volume proportion of the filling aluminum foam was 12.15%. The structural shape of the composite material constructure were column, equilateral triangle and square, respectively. And the acceleration speed was 7800g. The paper established Aluminum foam-polyurethane shock-cushioning model, and analyzed the stress of the model, gained the distortion of different models, and analyzed shock-cushioning capability of the models. Results showed that the shock-cushioning performance were equilateral triangle, column and square from high to low.

A natural lectin from the seed of peanut Arachis hypogaea was purified by singlestep affinity chromatography using galactoside-coupled agarose. This lectin was named PN-L and its inactive form had a molecular mass estimate of 29 kDa. The lectin PN-L was detected for agglutinating activity, glycoinhibiting action and thermostability. The influence of pH on those activities was also tested. The results showed that PN-L could not agglutinate three kinds of human erythrocytes. But it showed a strong affinity for human A/B/O erythrocytes (RBC) by neuraminidase treated. Agglutinating activity of PN-L to neuraminidase treated human O erythrocytes was inhibited by lactose , raffinose, melibiose and D-galactose. The agglutinating activity of peanut seed lectin was inhibited at temperatures greater than 55 and at a pH less than 5 or greater than 11.