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In recent years, with the rapid development of coal industry, a large number of coal fly ash has been produced, while the recycling rate of the ash is rather low. It is not only a waste of the precious land resources, but also makes environment suffering severe pollution. As an important kind of new material in the national economy, the demand for molecular sieve is growing. It is possible to synthesis molecular sieve using fly ash. The way is not only energy conservation and environmental protection, but also waste reclamation, according with the theme of the sustainable development.This study is to synthesize the molecular sieve with guide agent by the method of hydrothermal synthesis using Cheng He mining area in Shanxi province, which is on the basis of the analysis of chemical composition of fly ash. It is also to find a approach for the use of fly ash with subtly. Through XRD expert zing phase, SEM observing appearance, the characterizing results show that excellent performance molecular sieve of 4A can be synthesized at conditions: Calcined at 850°C and for 2 hours, then hydrothermal reacted with composition of reaction mixture 3Na2O:1Al2O3:2SiO2: 185H2O at temperature 90°C, crystallization time 6h with 5% guide agent.

According to the characteristics of power emergencies and integrating the realities of grid emergency management, the paper established grid emergency management capability evaluation indexes system, which is consist of 1 first grade indexe,15 second grade indexes. First, the paper determined the weight of each index with AHP and then evaluated the indexes system by fuzzy comprehensive evaluation in two levels. In numerical example, the paper took a provincial grid company emergency management capability assessment as an example, obtained scientific analysis results, proved the usefulness of the evaluation system, and pointed a clear direction for the grid companies’ emergency management construction in the future.

Solid waste resource utilization is a important way for sustainable economic development, environmental and ecological protection. Using adsorption and flocculation characteristics of fly ash to preparare fly ash-based inorganic flocculant and use it for treating slime water, make waste fly ash into treasure, not only solve environmental problems, but also has very important theoretical significance and application value.In this study, we use Na2CO3 melt to improve acid-soluble activity of fly ash, extract ideally the aluminum and iron silicon as active ingredients in the fly ash. On the basis of the solubilization experiment, we design orthogonal experiment about larger impact several factors on the the flocculant preparation of process: silicon and aluminum element ratio, silicon iron element ratio and curing temperature, the orthogonal experiment results show that the best optimum process conditions is: Si: Al (mole ratio) is 1:0.5, Si: Fe (molar ratio) is 1:0.5, curing temperature is 60°C, curing time is 2 hours. Finally, we use poly silicate aluminum iron flocculants prepared to do flocculation test on slime water, determine the best flocculation conditions is: when we treat slime water which concentration is 8g/L and volume is 250mL, the optimum dosage of polysilicate aluminum iron is 1.3mL, the transmittance gets to 74.2%, the flocculation effect is the best.

This paper focused on synthesizing the surfactant lyotropic liquid crystals (LLCs) through mixing the coconut diethanol amide (6501), primary alcobol ethoxylate (AEO9) and water. The LLCs phases formed in the ternary system are thoroughly investigated by polarized optical microscopy (POM). The obtained LLCs were characterized by XRD and SEM in order to analysis the texture, structure and the transformation. In addition, the LLCs have been applied in the preparation of TiO2nanoparticles in our research. The obtained TiO2powder were characterized by XRD and SEM, more importantly, the results showed that the LLCs are effective in the process of synthesizing TiO2nanoparticles.

With the deepening of economic globalization, cooperation has become a mainstream trend, revealing the discipline of cooperation has become a key scientific issue. As a content of cooperation, international energy cooperation is a system of relations constituted by different energy cooperation agents, it reflects the composition of agents. Ability divergence and their capability system have an effect on the long-term stability and development of cooperation. Based on the theories, this paper put forward the main connotation of cooperation capacity structure, building capability evaluation system, clearing affect the stability of the key indicators of cooperation, exploring the relationship between cooperation agents’ capability structure and cooperative stability in order to study the whole process of international energy cooperation fluctuations trajectory.

The Cu2O/TiO2heterostructure nanocomposites photocatalysts with different molar ratios of Cu2+/Ti4+were successfully synthesized by a simple hydrothermal procedure. The obtained samples were characterized by XRD, SEM, UV-vis DRS in order to detect the composition, the shape and the property. The photocatalytic activity of Cu2O/TiO2nanocomposites was evaluated by the degradation of methyl orange (MO) as a model compound. The experimental results showed that the prepared Cu2O/TiO2nanocomposites exhibited higher photocatalytic activity for the degradation of MO than the pure Cu2O and the commercial anatase TiO2under visible light irradiation.

With the accelerating process of urbanization, the urban transportation has changed a lot. The original way of space organization and traffic management of the campus-front space of elementary schools, which can only guarantee for the purpose of teachers and students coming through, was unable to meet the current requirements. This phenomenon causes the congestion at the school gate to and from school, and brings great security risk. In this paper, we take some urban schools of Wuxi for example, through the investigation of the campus-front space of these schools, to analyze the exist problems of the elementary school campus-front space, and to reveal the causes of the problems, so as to provide a reference for the design of primary school campus-front space.

Usually, a large horizontal force will be generated to the pier in the construction process, which may induce significant influence on the pier‘s safety, especially in the case of the bridges with high piers and long span. Some cracks ermerged in the foot part of a pier in the construction stage and a horizontal force was believed to have been load on it, hence its reliability was douted.The pier was simulated with virtual laminated element program, and its mechanical performance under a horizontal force was calculated with both geometrical and material nonlinearity are considerd, thus its whole loading and failure process was illustrated and the pier’s safety was assessed.

Chitosan-aluminum oxide composite material was synthesized through chemical bonds with chitosan and isopropanol aluminum as raw material, whose structure was characterized by SEM. The influence of reaction conditions on adsorption performance were studied, such as temperature, time. Results show that in the composite materials, chemical bonds were existed between aluminum and chitosan, inorganic aluminum oxide evenly dispersed in the surface of chitosan molecular. The adsorption capacity of such composite towards Hg2+ had been greatly improved better than the mixture of chitosan and Al2O3 materials and chitosan .the adsorption rate of Hg2+was 18% higher than that of chitosan, adsorption capacity is up to 900mg/g.

Chitosan-aluminum oxide composite material was synthesized through chemical bonds with chitosan and isopropanol aluminum as raw material, whose structure was characterized by SEM. The influence of reaction conditions on adsorption performance were studied, such as temperature, time. Results show that in the composite materials, chemical bonds were existed between aluminum and chitosan, inorganic aluminum oxide evenly dispersed in the surface of chitosan molecular. The adsorption capacity of such composite towards Cu2+ had been greatly improved better than the mixture of chitosan and Al2O3 materials and chitosan .the adsorption rate of Cu2+ was 13% higher than that of chitosan, adsorption capacity is up to 146 mg/g.

A pair of triazole-linked bistetrahydrobenzofuran derivatives were prepared in high yields through Cu (II)-catalyzed click reaction under mild conditions. All of the intermediates and target compounds were characterized by NMR, IR, ESI-MS and elemental analysis. Thein vitroH+/K+-ATPase inhibitory effect for the target compounds were also evaluated by MTT methods, and the (E)-isomer of the bistetrahydrobenzofurans exhibited the better H+/K+-ATPase inhibitory activities than the commercial omeprazole with the IC50of 37.90 μM. The bioactive compound might be potentially used as anti-ulcer agents in the treatment of acid-related diseases.

Global climate change affects not only rice yield but also grain quality. A better understanding of the effect of environment factors on rice yield and quality provides information for breeding new varieties adapted to a changing world. This study uses indica-japonica recombinant inbred lines (RILs) constructed in different ecological regions of China as test materials. The objectives were to determine the effect of environment on rice yield and quality. The results revealed that: the yield of RILs in Liaoning was greater than that in the other regions, milling and appearance qualities in Sichuan and Guangdong were worse than that in Liaoning and Shanghai. High temperature and high relative humidity combined with low sunshine duration were the main reason for lower milling quality and greater chalkiness traits. The air temperature during heading stage and maturity stage seemed more important for rice milling and appearance qualities throughout the growing season.

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.

This paper studied the borehole stability in Liulin bituminous core reservoirs during under-balanced drilling. The equivalent depth method was applied to study the formation pore pressure. The floor drain test method was applied to study the ground stress. Core strength experiments combined with logging data were used in the establishment of core strength predicting model. Mechanics analysis model was founded to study the borehole stability in the core reservoir. According to the studying and analyzing results, the under-balance drilling in Liulin coal reservoirs enjoys good borehole stability.

Routing information release is a kind of promise from the router for network reachability. Illegal routing information may have disastrous effects on the normal work of the network. Open Shortest Path First (OSPF) protocol provides authentication methods to protect the authenticity and integrity of the routing traffic. This paper describes two authentication types of OSPFv2, analyzes the realization mechanism and packet header format of each authentication respectively. Based on GNS3, a typical network topology was designed, and with the aid of it functional verification and security analysis are carried out. The simulation can provide a reference for building an OSPF network. Experimental results show that the configuration of OSPFv2 routing authentication can effectively prevent the router from receiving unauthorized or malicious routing updates, thereby improving network safety.

The phenomenon of laminar flow in the micro-channel is demonstrated by the software simulation. It shows different velocity produces different flow layer. Water-in-oil droplets are obtained by the experiments. These experiments take water as the dispersed phase and take the oil as the continuous phase. Analyze forming process and forming factors of the droplets and the column flow. The main factors of forming droplets are surface tension, viscosity shear force and the liquid velocity. The size of droplet is associated with the flow and channel width of two liquids. Changing the pressure of the inlet can obtain droplets in different size.

This paper takes a passenger car back door as an example with the use of glass fiber reinforced PET to replace steel. The sampling space is sampled by the optimal Latin hypercube experimental method and according to the experimental data, it establishes the polynomial response surface (RSM) model. Select NSGA −∏ genetic algorithm to optimize the back door assembly thickness of multi-objection with the purpose of lightweight.

Numerical simulations have been done to investigate the effect of passive flow control on the flow separation and the strength of the shock wave of the NACA0012 airfoil with two types of the porous surface. It has also been discussed that which region the porous surface applied to will make better effect on the flow control. The results show that the B type of the porous surface, which has empty bottom, has effective control on the flow separation if applied to the region near behind the separation point, while the A type of the porous surface is useless. And both A and B porous surface have effect on the decreasing of the strength of the normal shock wave strength when the porosities have been applied to the region across the shock wave. And compared with A type porous surface, the effect of the control is better if B type porous surface is applied. The result has been concluded that the aerodynamic characteristics of the airfoil can be improved with B type of the porous surface. And the B type is worth to be used.

In order to determine the best maintenance time of wind turbines and identify the fault type when it is the best time to do the diagnosis work immediately. The establishment of 4-level safety status model for critical parts of wind turbines, based on wind turbine parts’ significance level, was proposed. According to the corresponding safety level of the wind turbines in real-time working status, you can decide whether the wind turbine needs diagnosis at the time or not. Therefore, we should take measures to monitor the real-time working conditions of the wind turbine’s critical parts, confirming whether the critical part need the fault diagnosis analysis or not according to its real-time working safety status. If it is the right time, then the corresponding fault diagnosis process will be initiated, through which the real online fault diagnosis can be achieved. The multi-scale wavelet decomposition and Hilbert transformation was employed to get the useful parameters such as amplitude, effective value, mean value, kurtosis value and so on of the corresponding waveform to confirm the concrete diagnosis type.

In this paper, numerical simulation technology was applied to comprehensively analyze and study the mechanical properties of the derrick. The three-dimensional finite elements analysis model of the derrick structure was established, which provided the physical model of the numerical simulation and the optimization of the three-dimensional derrick. The finite element simulation method was applied to analyze and optimize the mechanical and deformation of the three-dimensional derrick structure, so that the theoretical method to study and design the three-dimensional derrick using finite element method was established.

We took 600 MW sub critical unit of Taishan power plant as the research object and modeled. Analyzed the thermodynamic system by exergy method. Got the amount of exergy loss, the exergy efficiency of regenerative heater and so on. Found out the distribution of different kinds of exergy loss in the power plant with giving out the scientific and reasonable explanation and the weak point. Then increased the efficiency of thermal system by adding external steam coolers for high pressure heaters.

This paper, through the analysis of the serious problems of jiao River such as the deterioration of water environment and water pollution, puts forwards the water protection measures, on the basis of which we appeal to the governments at all levels to attach great importance to jiao River pollution management and actively improve jiao River water environment. At the same time, the paper hopes all of our citizens could contribute to the improvement of jiao River environment.

A hyper-spectral remote sensing instrument AVIRIS was used to map lithology. Ground measurement data of lithology from ASTER Spectral Library were used to analyze the characters of the spectrum and form the model to estimate the type of lithologies. we process the spectrum with the methods of spectral angle mapping, and spectral absorption index etc. To enhance the significance of the spectrum character, we used the methods of spectral angle mapping, and spectral absorption index etc to process the spectrum. An AVIRIS data covers the Cuprite mining district in western Nevada, USA was used to do the experiment, result shows that the lithologies got from the AVIRIS have a high consistence with groud measurement.

The complicated motion of the gyroscope includes the rotation, the precession, the nutation and the sliding motion which are coupled, and it is affected by the lash-force by the whip. Taking the gyroscope which is moving stably as the research subject, according to the motion characteristics of the gyro’s rotation and precession, the gyro is assumed to be the two-force bar, and the coupled relationship of the gyroscope is analyzed quantitatively. The three-dimensional complicated motion in the different categories is analyzed. The nonlinear differential equations in the different categories is derived and linearized by the minor variables method, and then the three-dimensional motion equations on the rotation, precession, nutation and slipping of the gyroscope in the different categories is established. Take the big gym gyroscope as the example, the influence of the force, time and position of the whip on the motion state of the gyroscope is analyzed in detail, and provides the basis for the design of the gyroscope.

Coal-fired power units show defects in meeting the demands of maintaining power system frequency stability. This is mainly due to their inherent characteristics and a continuous increase in renewable generation. Battery Energy Storage System (BESS) has such advantages as fast response and precise tracking, thus may be a new frequency regulation method. On basis of the principle of energy storage for regulation, capacity configuration of energy storage is made as an alternative to coal-fired power unit accounting for both primary and secondary frequency regulation. Example calculations and simulation in MATLAB/SIMULINK are conducted to verify the feasibility of the proposed capacity configuration methods and the reliability of the energy storage system for regulation.

Nowadays, in China nearly all the produced oil-fields have already entered the period of high water cut, and the six oil-fields of Daqing and Shengli oil-field etc. have exceeded eighty percent water cut. Beierdong Block has produced for nearly fifty years, and now it has entered into the descending output stage and its water cut has reached more than ninety percent. With oil field infill gradually in Beierdong Block, each series of well network production target getting worse gradually, intersecting with old well network stratigraphic position, and polymer flooding well network use part of water driving old well, making the contradictory of layer well network concatenate and dynamic regulation intensely. Especially as the block of infill adjustment proceeded earliest, acquired better developed effect at the beginning of regulation, but with the deep development of the field, after the phase of extra high water cut, exposed gradually some problems such as the perforating interval is too long, the contradiction of interlamination is obvious, the high water cut of multilayer is serious, bringing huge difficulty to dynamic analysis regulation[1]. Basing on layer recombination and using the reservoir simulation method, the paper studied the distribution of remaining oil, forecast variation regular pattern of development indexes. By contrasting these indexes, the paper estimates the effect of layer recombination. It has important significance for the next period’s development.

Catchments delineation is important for urban storm sewer design, traditional manual delineation depends on the experience and is time consuming. With consideration of features like roads and streams that affect catchments dynamics, a GIS-based delineation approach is presented. Using sink filling, reconditioning and hydro analysis method, the catchments can be delineated automatically and precisely based on digital elevation models (DEM).

In this paper, the interaction between human serum album (HSA) and minocycline (MNC) in physiological solution had been studied by fluorescence spectroscopy, UV spectrum and FT-IR spectroscopy. The inner filter effect was corrected. The results indicated that the fluorescence quenching of HSA was primarily due to static quenching, and thermodynamic parameters exhibited hydrogen bond and van der Waals force played the major role in stabilizing HSA-MNC complex. Through site marker competitive experiments had been assigned to possess the high-affinity binding site for MNC in subdomain IIA of HSA. Binding constant was obtained to be 1.64×106L·mol-1(298K) and 1.16×104L·mol-1(310K), the number of binding sites were both 1. The alternations of HSA secondary structure, such as α-helix and β-sheet were quantitatively calculated from FT-IR.

The fire retardants were used in epoxy resin (EP) to get fire retardant EP, whose kinetic parameters activation energies (Ea) were calculated by Ozawa integral method and the Kissinger differential method. The results show that the correlation coefficient (R) is above 0.95, which shows good reliability of the two methods for solving Ea. E for the fire retardant foam is decreased by 40 kJ·mol-1, which shows that the fire retardant can catalyze decomposition and carbonization of EP.

Hemp was treated with guanidine dihydrogen phosphate [GDP] to impart flame retardance. The thermal degradation of the samples were studied by thermogravimetry (TG) and differential thermal analysis (DTA). The flame retardance was determined by LOI. Morphology of the char structure was studied by SEM to obtain information concerning the thermal degradation mechanism. For hemp treated with GDP, which has higher LOI and char yield values, the oxidative decomposition stages include a decomposition stage at lower temperatures (165-240°C) , leading to more carbonaceous residue and small amount of flammable products to get the good flame retardance. The SEM of the chars of hemp treated with GDP also indicate the structure of the charring layer may increase heat insulation, and protect inner matrix materials.

Yellow River Delta had been extensively engineered to control flooding and to protect coastal development which leaded to wetlands destruction and severe water pollution. The Yellow River Conservancy Commission decided the water supplement to the wetland during the water and sediment regulation period in 2010. In order to study the water quantity and distribution simulation, one-dimensional SOBEK model was used to flood simulation in the Yellow River Delta. The Re of the daily water level at four stations for the calibration period were 0.6%, 2.3%, 2.9%, 7.0%,.which indicated that the simulated values matched very well with the observed values. The SOBEK model had predicted the water level volume in 2003 within the range of acceptable accuracy. It indicated that the one-dimensional method SOBEK model was suitable for the flood simulation.

Complexes of cell-THPC-thiourea-ADP with Ca2+ have been prepared. The thermal stability and smoke suspension of the samples are determined by TG, DTA and cone calorimetry. The activation energies for the second stage of thermal degradation have been obtained by following Broido equation. Experimental data show that for the complexes of cell-THPC-thiourea-ADP with Ca2+, the activation energies and thermal decomposition temperatures are higher than those of cell-THPC-thiourea-ADP, which shows these metal ions can increase the thermal stability of cell-THPC-thiourea-ADP

Wind power is a new technology compared with thermo power, the damage of sub-synchronous oscillations cloud bring to the shaft of wind turbine do not get enough notices. There are few studies on wind turbines sub-synchronous oscillation now, which are built on the model of rigid shaft. As we all know wind turbine shaft is unlike the shaft of stream turbine, there are couplings and gearbox in wind turbine which make the shaft flexible, so the studies of wind turbine sub-synchronous oscillations based on rigid shaft model are not reasonable, this paper introduces a new flexible shaft model for studying of wind turbine sub-synchronous oscillations. Flexible equipments, such as joints and gearbox are taken into consideration when the model are set up, so this model is far more scientific.

Wood has been treated with amino resins and amino resins modified with phosphoric acid to impart flame retardancy. The thermal degradation of samples has been studied by thermogravimetry (TG) in air. From the resulting data, kinetic parameters for different stages of thermal degradation are obtained following the method of Broido. For the decomposition of wood and flame retardant wood, the activation energy is found to decrease from 122 to 72 kJmol-1.

The Full decoration residential comply with the developed economic and improved residents' living standards. On the basis comparing the decorate between China and western countries, The full decoration residential should take systematic design and pay attention to the decorate strategy.

To solve the demand of real-time event detection in the RFID-based Intelligent Transportation Systems , using Complex Event Processing technology to establish a rule model to detect events.The model allows users to customize the Basic Events and Complex Events, using the rule files describe the complex events modes, clearly expressed the timing and gradation relationships between RFID events, meeting the needs of real-time event detection in the Intelligent Transportation System ,achieving the appropriate rules engine,. Finally, test and verify the effectiveness of the rules file and the rules engine model by experiments.

The information technology which is applied in the vegetable cultivation of high yield and quality is called the agricultural expert system. Aiming at developing a agricultural expert system, this paper discusses the research status of agricultural expert system (AES) and its software test tool, and outlines the application of Multi-Agent theory and technology. To address the problems existing in the current AES software development, this paper puts forward the research idea of Multi-Agent-based AES software test tool to inspect its standardization, fault tolerance and logic error, while provides relative technical practices. This paper also introduces the design, development and function of AES software test tool as well as application of Agent technology, and further discusses the advantages of developing the tool by utilizing Multi-Agent technology.

Aiming at the characteristic of virtual prototype, this paper structured armored vehicle maintainability evaluation system, and studied the method of maintenance evaluation in the virtual environment. At last an example is used to 6245687636xplain application prospect. It is significant for developing maintainability evaluation.

Due to the low transparency and poor gloss, the applications of ordinary opaque polypropylene are limited largely in the field of food, medicine, medical instrument and packaging. One of the ways to solve the defects mentioned above is to develop transparent polypropylene which is industrialized via polymerization and processing. The article introduces the progress of high transparent polypropylene (HTPP) all over the world.

Employing yeast cells as carriers,a novel cell-loaded photocatalyst yeast/ZnS (YC/ZnS) was successfully synthesized. The adsorption performance of methylene blue on the YC/ZnS microspheres was studied. Experimental results showed that the optimized adsorption conditions were 23°C,pH7 and the YC/ZnS dosage 4.5g/L. Under these conditions,the adsorption capacity of YC/ZnS could reach 471.2μg/g. Isotherm modeling revealed that Freundlich equations described well the adsorption of methylene blue onto YC/ZnS.

Vortex ring state (VRS) is an inherently unsteady aerodynamic phenomenon. For rotor operations in the VRS, an inherent unsteadiness is a characteristic of the flow state, which is reflected by the waves and knots produced on the tip vortex filaments. Operationally, entry into the VRS manifests as rotor thrust fluctuations and also an increase in the average rotor shaft torque, the latter which is necessary to overcome the higher induced aerodynamic losses associated with rotor operations inside its own wake. Arming to the flight safety, the VRS development is discussed, the VRS models are summarized, and the operations for flight out VRS are given at the end of this paper. It is helpful to helicopter flight and training.

This study reports the application of an electronic nose for the identification and classification of red wines aged three different methods. The signals of the different wines detected by the 10 sensors present in the E-nose are significantly different from each other. The response to the signal generates a typical chemical fingerprint of the volatile compounds present in the wines. Principal Component Analysis can be applied for the dimensionality reduction of the collected signal. Since the total contribution rate of the first three principal components is up to 97.27%, different wines can be distinguished from each other by the three principal components. Euclidean distance, correlation analysis, Mahalanobis distance and linear discrimination analysis can offer 100% accuracy for known samples, and the accuracy rate can reach 88.9% for the 18 test samples. In addition, numerous advantages exist compared with sensory analysis in both authentication and quality control of wines.

The microstructure and properties of Cu-7.5Ni-5Sn alloy after homogenization treatment was investigated. The research results show that homogenization treatment can obviously eliminate dendritic segregation in Cu-7.5Ni-5Sn alloy. The temperature of homogenization annealing has a great influence than the effect of holding time. The ingots of Cu-7.5Ni-5Sn alloy which were homogenization treated at 780°C for 24 hours can be rolled up to 30% deformation by cold-rolling. Some tiny white matter is still remaining in dendrite boundary, but atom fraction of Ni and Sn of the dendritic segregation is decreased by 12.04% and 4.73% respectively compare with casting state. The electrical conductivity and Brinell hardness of Cu-7.5Ni-5Sn alloy homogenization treated at 800°C for 24 hours is 12.8%IACS and 132Hv, and increases 18.5% and 29.9% respectively.

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.

We studied volatile determination in lignite coal samples using near-infrared (NIR) spectra. Firstly, spectra were pre-processed to eliminate useless information. Then, determination model was constructed by partial least squares regression. To study the influence of pre-processing on determination of volatile for NIR analysis of lignite coal samples, we applied four techniques to pre-process spectra, including normalization, standardization, centralization, derivative and discrete wavelet transform. Comparison of the mean absolute percentage error (MAPE) and root mean square error of prediction (RMSEP) of the models show that the models constructed with spectra pre-processed by discrete wavelet transform gave the best results. Through parameters optimization, the results show that discrete wavelet transform and partial least squares regression can obtain satisfactory performance for moisture and volatile determination in coal samples.

The straw carbon is made by straw stalk (carbon plant corn, wheat, etc) gasified and dry distillated in 1,200°C. The experiment disscusses performance of straw carbon absorbing phenol in different conditions (time, dosage, temperature, pH value), and modified straw carbon in different conditions to improve its adsorption performance. Results show that the best conditions for straw carbon absorbing phenol is: amount ratio of phenol and straw carbon is 0.84mg/g (C phenol = 30mg/L), temperature is 35°C, pH value is 9, the best adsorption time is 5h.The optimal modified conditions is: modified with hydrogen peroxide, solid-liquid ratio is 1:1. The phenol content in simulation wastewater is only 0.47mg/L after absorbed by modified straw carbon. It is in line with GB 8978-1996 wastewater discharge standards.

In order to improve the surface properties of SiO2 particles, SiO2 particles were modified by vinyl triethoxysilane, SiO2 particles and vinyl triethoxysilane modified SiO2 particles were characterized by FTIR, SEM and XRD techniques. The results showed that vinyl triethoxysilane has been successfully grafted onto SiO2 particles and basically there are no changes in the size of SiO2 particles before and after the modification by vinyl triethoxysilane. XRD results show that the synthesized SiO2 particles have certain crystallinity.