The groundwater was monthly sampled from two underground wells of wastewater treatment plant in Changzhou City during March 2016 to February 2017 to monitor groundwater quality and cultivated bacterial community in water. This study aims at analyzing bacterial community structure shift along with environmental...

Carbon quantum dots (CQDs) had been widely applied in the metal ions detection area due to their excellent optical properties and low toxicity. Herein, a series of CQDs with different sizes were prepared by a facile but effective hydrogen peroxide (H2O2) oxidative method using activated carbon as carbon...

A pot experiment was designed under drought stress condition to study the effect of different starter nitrogen fertilizer on photosynthetic characters in the leaves of relay strip intercropping soybean at branching stage. The Pn, Gs, Tr were measured, WUE was calculated. The results showed drought stress...

A pot experiment was designed under drought stress condition to study the effect of different nitrogen levels on lipid peroxidation and protective enzyme activities in the leaves of relay strip intercropping soybean. The activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and the...

A pot experiment was designed under drought stress condition to study the effect of different starter nitrogen fertilizer on fluorescence parameters in the leaves of relay strip intercropping soybean at branching stage. The Fo, Fv/Fm, PS, qP, NPQ and ETR were measured or calculated. The results showed...

A pot experiment was designed under drought stress condition to study the effect of different nitrogen levels on photosynthetic pigments in the leaves of relay strip intercropping soybean. The Chla, Chlb, were measured, Chl content, Chla/b was calculated. The result showed that effects of nitrogen and...

A pot experiment was conducted to study the effects of continuous shade stress during procreation growth stage on isoflavone and lignin accumulation in developing soybean seed. The results showed that continuous shade stress during procreation growth stage could improve the isoflavone and lignin accumulation,...

In view of high-power LED microchannel phase-change cooling system, scientific problems, such as boiling incipience, flow pattern, heat transfer character, pressure drop and heat transfer instability are summarized. Proposing simultaneous measurement and analysis of phase-change cooling flow pattern,...

Distribution network planning is to guide the distribution network construction and management of key links, is the global energy Internet construction is an important work. In this paper, the key factors influencing the quality of distribution network are analyzed by using fish bone diagram analysis...

In order to verify the feasibility and innovation of grey clustering method for the introduction of weight theory in water quality evaluation. Ming-guan campus of Hebei University of Engineering set up 8 monitoring points to continue water quality monitoring in Handan for 7 days as a cycle of October,...

The secondary effluetn of Printing and Dyeing industry wastewater is a typical low load and refractory wastewater. The COD concentration is between 150-200 mg/L. In this pilot study, the treatment effect of lignite-coke and ceramic filter BAF was investigated. By comparison with the laboratory scale...

A novel electricity- Compressed Natural Gas (CNG) multi-compression process using natural gas pressure energy is proposed. Compared to electricity-CNG single-compression process using natural gas pressure energy with the same CNG product, the multi-compression process produces 92 more kW power. In this...

Under the background of formulating environmental tax policy, the polluting enterprises will lobby the government legislative branch and try to lower the standard of environmental tax policy to maximize their own interests. In order to realize the real effect of environmental tax policy, effective measures...

For better use of soil particle size distribution (PSD) models and expand the use of large database held by national Soil Surveys (Katchinski's scheme) in China, 12 PSD models were proposed as the function of cumulative mass percentage of particles and diameter (mm) for 265 soil horizons (Katchinski's...

As the main backbone mode of transportation in China, railway transportation is of great significance for the study of energy consumption influencing factors. This paper analyses the background of railway goods transportation and energy consumption in our country, and on the basis of summarizing the...

Riemerella anatipestifer (RA) is a Gram-negative rod-shaped bacterium associated with epizootic infections in poultry. RA infection is probably the most economically important infectious disease of farm ducks worldwide. The complete nucleotide sequence (1593bp) of RA RagB/SusD gene has been identified...

500kV series transformer is the key equipment in Suzhou 500kV unified power flow controller(UPFC) project, which undertakes the regulation of voltage and power between the converter and the line. Due to the special connection mode and operating condition, 500kV series transformers differ from conventional...

Acoustic noise of air conditioner is one of the main vehicle interior noises. In this paper, the value of the acoustic noise obtained under specific rotational velocities that tested in the experiment has been analyzed and the distribution of the noise with the analysis of the sound field in the HVAC...

Object: To explore the feasibility and effects of temporary intestinal drainage in the surgical treatment for the neonates with necrotizing enterocolitis. Methods: A retrospective analysis was conduct on 42 cases of newborns with extensive and multiple intestinal necrosis found intraoperatively, all...

Metal-Oxide Arrester(MOA) is to limit the lightning overvoltage and operating overvoltage, and protect other electrical equipment from overvoltage damage. The fault diagnosis of MOA is very important to power system, traditional test methods has several factors to restrict the efficiency and accuracy....

Based on the analysis of power consumption of the circuits, isolation transformers and secondary cables of traditional lighting systems, this paper proposes a long-term power efficient lighting system regarding LED airfield lamps, without modifying the topology of power circuit. New types of sine wave...

With distribution automation full coverage, terminal debugging and operation and maintenance has become a key factor in practical application. Based on the IEC 61850 standard and IEC 61850-80-1, Information model mapping, combined with the IEC60870-5-104 extension, the scheme of self-discovery, self-registration...

Air intake system is frequently required to replace filter unit, resulting in high operation and maintenance cost, which can be attributed to the failure to fully take account of the domestic air quality. Based on real power plant operational data, a mathematical model was built to analyze the life cycle...

In this work, the whole cell biocatalyst of Rhizopus oryzae lipase (ROL), a versatile lipase for biodiesel production, was successfully developed through surface display technique using a-agglutinin 2 (Aga2) as an anchor protein and Saccharimyces cevevisiea as anchor yeast cell. The enzyme properties...

In order to reveal the failure mechanism of slope foundation, based on the limit analysis method and the limit equilibrium method, a formula for calculating the bearing capacity of slope foundation considering the influence of soil slope behind the slope is constructed. The calculation program of soil...

Using pot experiment to study the effect of vermicopost on the physicochemical properties of coastal saline soil in water spinach plantation under conditions without chemical fertilizer utilization. Six treatments were designed by mixing vermicompost and saline soil in different volume ratios of 0:20,...

With the rapid development of urban landscape design, the lighting is more and more needed. Existing urban landscape and lighting design of the system is not perfect, according to the regulations of city road and park lighting standard to analyze, and the various forms of existing urban landscape and...

Energy Internet is the product of deep integration of energy and information, is an important fulcrum to promote the energy revolution. In existing traditional market transactions, independent power generation model of various energy results waste of energy resources, and low efficiency of the industry's...

316LN austenitic stainless steel (ASS) has been used as a magnetic support structure for ITER. Pulse current as a new materials processing method, has many remarkable advantages. In this paper, the pulse current was used to treat the 316LN ASS welded metal welded by narrow gap MAG welding. The influence...

The screw connecting rod of a hoisting machine suddenly breaks during the service at temperatures below 20 °C. In this article, the fracture surface, material , heat treatment process and mechanical properties of the connecting rod are analyzed. We find the low temperature brittle fracture of the screw...

A 310kW steam generation system by the heat utilization of mesothermal solar was built and the thermodynamic model of main parts-solar collector and heat transformer were developed. In different conditions, the impact of solar radiation intensity, recycle ratio of condensate water and ambient temperature...

In this paper, we addressed the inventory-location model of the distribution network planning based on the actual vehicle 3PL case background. We use the genetic algorithm to calculate the actual data, and evaluate the effect from the demand and cost two aspects. The model deter-mines the number and...

In the process of fluvial reservoirs development, bottom water coning leads to the problem of increasing water cut and low oil production. There are still significant amount of remaining oil in the upper layers of reservoirs after long-term waterflood. Drilling one or more lateral drainholes near the...

A noninvasive method based on ultrasonic velocity was proposed to detect the displacement front in core displacement experiments. CO2 drive experiments were carried out to prove the possibility of detecting the displacement front. The characteristic that ultrasounds have different propagation velocities...

The rural house with comprehensive circulated utilization systems has been designed and built in a village around Fuxin city, which could separate production from living region. At the same time the energy circulation could be taken out. This new design mode could solve the following actual problems...

In order to optimize indoor light environment and solar radiation level in training stadium in Guangzhou, China, parameterization building design method is employed in the research, and a sunshade system response design strategy for training stadium with light comfort applicable for sports population...

This paper analyzes the distribution of haze under different conditions of winter in Jiangsu Province in 2014. Selected the city of Nanjing and Xuzhou as typical polluted cities, the analysis and comparison of different haze day's discrimination criteria are different. when the haze pollution is lighter,...

The distribution of pollutants in 13 cities in Jiangsu Province in the winter of 2014 was analyzed. It was found that there were more haze days in Nanjing and Xuzhou and the concentration of PM10 and PM2.5 exceeded the national standard 38.9% and 42.2% respectively in the Nanjing , 51.1% and 55.6% respectively...

The Philippines has a diversely beautiful topography which is an awe-inspiring combination of mainland and thousands of smaller islands. But as to the development of tourism, there is still a large gap between the Philippines and other Southeast Asian countries with highly developed tourism. However,...

Take the structure of the FC evaporator for desulfurization wastewater from power plant as the research object establish model of the finite element analysis and the internal flow simulation is carried out. Compare the characteristics of the flow field in the evaporator with the different structure parameters,...

For reduction of industrial CO2 emission, sector CO2 emission reduction quotas should be fairly assigned based on their original CO2 emission level at sectors of industrial CO2 emission in the industrial chain, which bigger CO2 emitting sectors will be allocated more. But what are the bigger CO2 emitting...

Using Portable Emission Measurement System (PEMS in short), the PM and gaseous pollutants emission in China light-duty diesel vehicle before and after installing DOC+POC under cold and hot start conditions are studied respectively. Meanwhile, the POC filtration efficiency and size distribution of both...

Measurement delay for state estimation outliers adverse consequences, affecting the right conclusion. In this paper, the possible measurement delay is given through the analysis of SCADA data acquisition and transmission process. Based on the verification platform of dispatching automation system, the...

In view of the disequilibrium problem of city agglomeration transport supply and demand, structure non-equilibrium model of transport supply and demand was put forward considering the mutual feed mechanism of transport supply and demand structure. Firstly, based on a clear definition of scope to city...

Emission is a key factor to govern the mass concentrations of air pollutants including PM2.5, but currently remains large uncertainties. In this study, we firstly analyzed a commonly used emission invertory-MECI10, to understand the situations of emissions from the different major sources such as industry,...

The sludge discharge model in wastewater biochemical treatment is highly nonlinear,Accurate prediction of sludge discharge will provide basic data for the precise control of subsequent sludge dewatering process In the research based on this method, due to the relevance vector machine(RVM) has high sparseness...

Accurate power network data is the basis of grid security check. The plan data adjustment in different dispatching center influences each other. Regional balance was used in security check, based on fixed tie-line schedule, however, the influence of different dispatching center is ignored and power flow...

To improve the air environment of the ship's medical cabin, A series of experiments and numerical stimulations were carried for the research on the medical cabin's indoor air quality. By changing the opening rate, the different schemes of the full orifice air supply and the partial orifice air supply...

PbTiNb2O8 is a new piezoelectric ceramic that satisfy applications of energy harvesters. Complex structure change and dipole relaxation of Pb-site doping PbTiNb2O8 piezoelectric ceramics were investigated. The synchrotron radiation study results show that with 5mol% divalent cation substitution to Pb-site...

Energy management system (EnMS) is the key means of enterprise energy management. As one of the leading provinces in promoting the application and development of EnMS in China, Shandong Province released the first provincial EnMS Standard (DB37/T 1013-2008) in 2008 and had have 1045 enterprises operated...

The complex {[Cu(C9H8O4)(DMSO)2(H2O)2]·(DMSO)2}n (C9H8O4=2-Methyl-1,4-benzenedicarboxylic acid, DMSO = dimethyl sulfoxide)was synthesized by reaction of Cu(NO3)2·3H2O. The crystal structure of the copper(II) complex has been determined and studied by X-ray diffraction. The complex is monoclinic, space...

The phase composition of raw coal in Liupanshui Dawan coal mine was analyzed by XRD, and the Hg content of raw coal was measured by atomic fluorescence spectrometer. The results showed that the Hg content in the coal increased with the ash increasing, which indicated that Hg had a certain inorganic affinity....

In order to realize the utilization of kinetic energy of micro natural energy, a kind of rotary booster is proposed. Through adjusting the length ratio at both ends of the lever, the force value is magnified by times and the rectilinear direction of force is transformed to the rotary direction with lever-type...

Taken one of the rising national strategies of Xijiang river basin as the study area, we first established the sustainable utilization index system of water resources assessment. Then, the analytic hierarchy process was applied to calculate the index weights. And the composite index method was applied...

The phase and composition of Liupanshui coal gangue were determined by XRD and XRF analysis. The coal gangue is calcined at 600°C for 2h, grind 200 mesh, and the optimum amount of coal gangue is determined by testing cement mortar with different proportions and testing its compressive and flexural mechanical...

With the development of marine resources and the demand of marine military protection, underwater explosion technology is getting more and more attention. The underwater explosion experiments with single charge & double charges were carried out in a small cylinder explosion pond with diameter of 5.5...

The traditional vertical axis wind turbine will produce a part of mechanical loss because of the transmission system between the wind wheel and generator, resulting the reduction of the wind energy utilization rate of the wind turbine. This paper proposes a new design method for off-grid small vertical...

Volatile organic compounds (VOCs) can have an important influence on plant-insect interactions. In particular, insect behaviors are often influenced by the volatiles of both host plants and non-host plants. The objective of this study was to assess the behavioral responses of the aphid, Myzus persicae...

The Ship's Routing has been widely used in many coastal waters of China. It plays an important role in regulating the traffic flow of ships, guaranteeing the safety of ships and improving the traffic efficiency. According to the standard of international Ship's Routing, combined with the examples of...

The correlation between the number of landslides and collapses and the rainfall in Longsheng county was analyzed. It was found that there were 2 inflection points in the correlation graph between the quantity of geological disasters and the rainfall. The rainfalls corresponding to the inflection points...

Carboxyl-functionallized graphene oxide and polyaniline composites (FGO/PANI) were fabricated by in-situ polymerization method. The microstructure, morphology and electrochemical performance were characterized. Graphene oxide/polyaniline composites (GO/PANI) are short rod-like and agglomerate severely....

The evaluation of the rescue capability of the maritime department plays an important role in improving the emergency rescue capability of maritime emergencies and optimizing the emergency management of emergencies, which can reduce the occurrence of similar emergencies at sea. But the emergency rescue...

The influence of different carbon content and temperature on the carbothermal reduction coal fly ash and the optimum conditions of carbothermal reduction coal fly ash were investigated. The effect of temperature on the equilibrium components of coal fly ash during carbon reduction process was simulated...

In order to reduce salt pollution and reuse reactive dyeing wastewater efficiently, the residual dye was removed by calcium hydroxide, and the residual liquid was purified to remove the excess calcium hydroxide. The liquid was reused for reactive dyeing after the pH value was adjusted and the salinity...

By immobilized ferric oxyhydroxide on absorbent can improve its dispersion property in aqueous solution, then improve its application in water treatment. Ferric oxyhydroxides composites had been used as the absorbent on contaminants removing nowadays. This paper use this composites to absorb manganese...

The standard method to determine industrial effluents color is multiple dilution method which has defects of reproducibility, obscure endpoint of dilution, and subjective influence. For this, based on the theory of complementary color, an integral spectrophotometry method was proposed to determine the...

Performance evaluation of listed companies can not only display current operating conditions of enterprises, but also reflect future direction of optimization of listed companies. To find a simple, reasonable and effective express listed enterprise performance evaluation method is particularly important....

Melatonin is a small molecular substance widely found in higher plants and can improve plant resistance to stress ability. To investigate the effects of melatonin on the response mechanism and drought resistance kiwifruit seedlings, one-year-old seedlings of kiwifruit and root irrigation method were...

In this study, the seedlings of kiwifruit were used as the research materials to investigate the effects of exogenous melatonin (MEL) on antioxidant activity in kiwifruit leaves in response to drought stress. The results showed that exogenous melatonin effectively decreased the MDA content of leaves...

Wangjiazhai coking coal, Dahebian gas coal, Pan county lean coal as blending coals in this study, we mixed coke powder and asphalt into the coal samples to prepare formed coke, Therefore, the high strength, low ash, low sulfur and wear-resisting coke was obtained, and the best coal blending scheme was...

Based on the study of artificial neural network, the neural model was established for the prediction of germanium extraction from zinc oxide dust by microwave calcination-sulphuric acid leaching. Microwave heating temperature, liquid-solid ratio, leaching time, initial concentration of sulphuric acid...

A pot experiment was carried out to study the effects of intercropping with four floricultural accumulator plants (Helianthus annuus, Cosmos sulphureus, Cosmos bipinnata, Impatiens balsamina) on nutrient uptake of grape seedlings under cadmium (Cd) stress. The results showed that intercropping with C....

The effects of intercropping with four floricultural accumulator plants (Helianthus annuus, Cosmos sulphureus, Cosmos bipinnata, Impatiens balsamina) on photosynthesis of grape seedlings under cadmium (Cd) stress were studied by the pot experiment, and the photosynthetic pigment contents, photosynthetic...

The effects of cutting after continuous grafted on the photosynthesis physiology of Lycopersicon esculentum seedlings under cadmium (Cd) stress were studied by the pot experiment, and the photosynthetic pigment contents, photosynthetic characteristics and soluble sugar content of L. esculentum seedlings...

A pot experiment was carried out to study the effects of different concentrations of selenium on nutrient uptake of wild vegetable Nasturtium officinale. The total nitrogen (N), total phosphorus (P) and total potassium (K) contents in stems, leaves and shoots of N. officinale were determined. With the...

This WPVC (Wind PhotoVoltaic Complementary) electric power generation for household miniature modular facility, will essentially the WPVC miniature electric power generation facility /energy storage facility /converter facility/ control facility etc and load facility , that combination formation a number...

Airport security generally have 3 (the paper is divided into A, B, C) security entrance. Since the function of each channel varies from person to person, the time each person spent is not the same. Using traditional data analysis will be a huge project, however, using the cellular automata model is possible...

In order to avoid unauthorized payment of various stolen NFC terminal and to ensure convenient payment process, NFC Secure Payment System Based On Fingerprint Identification is designed, the fingerprint image collection module and the NFC reader are connected on the system server the system software...

with continuous advance in reservoir prediction technology, the requirements for inversion accuracy are higher. It requires that seismic data must have features such as high fidelity, high SNR and high resolution. How to ensure the improvement of seismic data resolution on the premise of not reducing...

Water eutrophication have become serious ecological problems. White-rot fungi have been demonstrated to be a feasible means of control, but the genotoxicity mechanisms involved have not been reported. In this study, Cryptomonas obovata FACHB-1301 was co-cultured with Phanerochaete chrysosporium under...

TiO2 tablets prepared by pressing mechanism and by planetary ball mill doped Fe, and they have been investigated by XRD, and SEM techniques. The results show that the pure TiO2 tablets has the high photocatalytic degradation rate of Rhodamine B at 500 C, and Fe/ TiO2 0.25 mol.% higher than pure TiO2...

Crop straw is an abundant but still underutilized renewable resource. Most of agricultural crop wastes contain about 70% fermentable components. Pretreatment technology aims to expose the fermentable carbohydrates for hydrolytic enzymes and microbes in downstream biofuels production process. An ideal...

In this study, an acid and alkali resistance cationic polyacrylamide flocculants (P(AM-MAPTAC)) was synthesized through copolymerization of acrylamide (AM) and methacrylamido propyl trimethyl ammonium chloride (MAPTAC) by innovative ultrasonic initiation technology. The structure and thermal decomposition...

In recent years, the issue of environmental pollution has been widely concerned, and a large number of studies have confirmed that the short-term concentration change of air pollution is closely related to the number of deaths per day. As an important cause of death, the respiratory disease is attracting...

This paper will design a set of comparative analysis system of unidimensional directional data to study correlation between traffic conditions and air pollution by directionally collecting air quality index and Beijing traffic data, and establish a mathematical model to forecast the change of air quality...

In this paper, the preparation methods of flocculants are analyzed and summarized. Organic and inorganic polymeric flocculants. Their flocculation properties were studied, and the synthesis of green organic flocculant and its flocculation performance were carried out. Finally, this kind of research is...

Based on Kaya identities, the LMDI decomposition method is used in building a factor decomposition model for Chongqing's carbon emission of energy consumption to perform empirical analysis on the impact of Chongqing's population, economic development, energy consumption structure, industrial structure...

In the study, floral buds of two varieties of chinese cherry "Bijie 7", "Zunyi 3" were used for chromosome staining as well as karyotype analysis. As the result shows, the chromosome number of cultivated species "Bijie 7" is 32. The karyotype formula is 2n=4x=32=32m, the ratio of chromosome length (L/S)...

Along with the economic and social development in our country, the demand for electricity and energy by society has been constantly increasing. The new round of market-oriented electricity reform launched in 2015 clearly defined the reform path of "three liberalization, three strengthening and one independence"....

Water conservancy facilities play a vital role in rural economic development and social stability, which are the foundation of national food security guarantee. Practice has proved that investing in agricultural infrastructure can not only promote the growth of agricultural output but also narrow the...

Anthocyanin is an important production of horticulture plant secondary metabolism, which is tightly concerns with fruit quality. There are lots of factors regulate plant anthocyanin biosynthesis including UV, which is one of the most significant factors, however, the effect mechanism details of UV are...

Ecological Civilization reflects the harmony state between human progress and nature in human civilization, and the ecological civilization of city water is the "concentrated shining point" of ecological civilization, but also the focus and difficulty of ecological civilization construction. This paper...

Hybrid electric energy (combined cooling heating-power, CCHP) companies has both customer base and power generation resources, therefore, it can be considered as a power user and as a power generation company ,which can participate in point-to-point direct purchase of electricity transaction. Based on...

China has about 400 million hectares grassland, accounting for 41.7% of the land area, from the 2013 China Prairie Conference published data, the Chinese grassland CO2 absorption capacity of 21.7 billion tons, How to effectively integrate the huge grassland carbon sinks has become a problem. Through...

According to the mineralogy of the polymetallic ore the process of preferential flotation of copper was adopted, and the separation of lead, zinc and sulfur were carried out and implemented Four products, including copper concentrate assaying 22.67% Cu at a recovery of 91.77%, lead concentrate assaying...

In the flotation of copper - lead - zinc polymetallic sulfide ores, flotation separations of those valuable minerals have been a difficult problem due to their finely-associated intergrowth and similar flotability of these sulfide minerals. This paper summarizes the research status and progress of mineral...

In this study, 17 kinds of vegetables were selected to make a contrast test ina nutrient solution cultured under the condition of 50 mg/L Ce pollution. Lactuca Sativa L., a low enrichment and normal growth, was selected by soil experiment to analyze the accumulation of Ce and its physiological and biochemical...

Electrolytic manganese residue (EMR) is an acid filter residue and contains a large amount of hazardous substances. The plasticity and sintering properties of EMR heated at 920-1020 are measured. EMR primarily consists of quartz (SiO2) and chemical gypsum (CaSO4·2H2O), and has a high plasticity. The...

By comparing the nitrification and denitrification intensity in sediments of different aquatic plant populations in Balihe Lake wetland, the main factors influencing sediment nitrification and denitrification intensity under different water depths as well as different aquatic plant populations were discussed....

In this study an in situ surface enhanced Raman spectroscopic (SERS) method was developed to rapidly and sensitively detect Ferbam on spinach leave surfaces directly without extracting them out. Ferbam was used to contaminate the surfaces of spinach leaves. Then branched gold nanoparticles (GNPs) colloids...

Tailings pond is an important basic facility in mine production. Its safety operation is not only related to the normal production and operation of enterprises, but also has important influence on the life and property safety and ecological environment of people in the downstream and surrounding areas....

In order to improve the utilization of solar energy and to reduce the energy consumption of an auxiliary heat source, this study investigates a phase change heat storage device for an LPG vaporization system utilizing solar assisted heat pump (DX-SAHPV). In this study, paraffin was chosen as the phase...

Based on the connotation of pollution footprint and the index model of water pollution which guided by ecological footprint theory, the water pollution footprint of Jiangxi province from 2004 to 2015 was calculated according to the survey of water pollutant emission statistics. Temporal dynamics and...

To obtain a good Cherry preservative, the author prepared mercapto Chitosan and metal ion complexes with solid-liquid reaction. Besides, the Cherry preservative was prepared by modified Chitosan materials. It was obtained that the optimal concentration of chitosen acetate for fresh cherries is 10g/l...

The combustion characteristics of corn stalk and coal gangue mixture (1:4, 2:3, 3:2,4:1) were studied by thermogravimetric analysis. By the data analysis to obtain its combustion characteristics peak fire index, index volatile, flammable index, comprehensive characteristic index and other characteristic...

In recent years, aluminum enrichment in soils is exacerbated. The amount of aluminum exchange in acidic soils directly affects the level of soil acidification. Aluminum toxicity-neutralizing capabilities of the microorganisms that have survived under the aluminum toxicity selection determine the harmfulness...

At the beginning of the 21st century, the trend of provincial industrial transfer became more evident. The transfer of industry will have a degree of impact on the economy and environment of the transfer-in-land and transfer-out-land. This paper uses the data of 10 polluting industries and 30 provinces...

The harmonic components is the additional waveform in the power grid, the harmonic loss can directly reflect the quality of the power grid, the harm of harmonic influences to the power grid and the safety of the equipment, in this paper it will be introduced a new type of harmonic suppression measures,...

Oxidized coal is the coal that recovered to environment temperature when the heat-storing environment is destroyed during the self-heating process, which is quite common in the process of coal mining and utilization. The spontaneous combustibility of oxidized coal differs from that of raw coal, which...

With the rapid development of urbanization, the contradiction between human activities and ecological environment is becoming more and more serious, and the urban park green space is unable to meet the demands of people for the urban environment. Based on the theory of sponge city, the ecological design...

The preparation and characterization of anti - blocked composite material consisting of MgSO4·7H2O and KAl(SO4)2·12H2O for thermal energy storage are reported in the present article. The preparation is performed by co-melting method by adding CaCO3 as the anti-blocking agent. The thermal properties of...

How to develop high-efficient and low-cost electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is urgent in fuel cell and metal-air batteries. What we are going to introduce is how to improve the performance of catalyst for ORR and OER under different acid treatment...

This project discussed environment and economic situation including regulation, deployment and Financing of building solar plant in Chile, which provided flexibility for further project construction.

This paper summarizes the relevant policy documents of Guangzhou contract energy management, analyzes the status of energy-saving service companies and the implementation of contract energy projects in Guangzhou in recent years. According to the current situation of the implementation of contract energy...

The preparation process of waste banana stem adsorbent and the conditions of removing Cr were studied. The experiment results showed that the saturated adsorption capacity of banana stem adsorbent with phosphoric acid reached 5.84mg/g, over 95% of Cr(VI) and 70% of total Cr can be removed from water...

This paper applies box-counting model to study the fractal characteristics of 17 sub-watersheds in the study area from Badong county to Zigui county in TGP reservoir region. The results indicate that the small watersheds have obvious fractal characteristics and that fractal dimension values of sub-watersheds...

In this paper,industrial grade chitosan as the raw materials,HAc-H2O2 synergistic oxidative degradation method was used for degradation of raw materials,the influences in the reaction process with different chitosan dosage on the yield,the viscosity and the degree of deacetylation had been studied systematically.The...

Six solid media, including rice hull, sawdust, wood chips, plastic pellet, coir and perlite, mixed with peat were used for blueberry 'Sharpblue' soilless culture. We determined the plant growth and development to estimate the optimal solid medium for blueberry soilless culture.

Electronic structures and optical properties of bulk -FeSi2 are investigated in detail by first principles pseudo-potential methods based on the density function theory. The calculated results show that -FeSi2 is a quasidirect band gap material with gap value of 0.74eV. The density of states is mainly...

In a pot experiment, we investigated the effect of different solid medium on blueberry 'Bluebelle' soilless culture. Solid medium included rice hull, wood chips, pine needle, plastic ball, perlite, slag, sawdust and coir. The results show that different treatments have different effect on different blueberry...

Using the three-year-old 'Britewell' blueberry as experiment material, this research studied the mature period of blueberry on different fruit thinning treatments (20%, 40% and 60% thinning ratio per panicle). The fruit weight, size, firmness, soluble solids content, moisture content, anthocyanin content,...

In this experiment, we studied the effects of astaxanthin on the growth and resistance of strawberry tissue culture seedlings under the stress of heavy metal cadmium. Strawberry seedlings were planted in MS medium supplemented with different concentrations of astaxanthin and with 25 mg/L GdCl2. The results...

High-speed gas in wellhead throttling nozzle carry condensate water and sand, which cause serious erosion to nozzle. Erosion rate with the velocity generally show an exponential growth, the higher the gas velocity inside the nozzle, the more serious erosion. This paper mainly analyze gas fluid flow in...

The optical properties of one-dimensional photonic crystals with Er2O3/Si structure are designed and calculated by Finite-Difference Time-Domain method. The influence of different thickness and reflectivity on the radiation properties were studied. It was found that the radiation spectral intensity at...

In order to solve the problem of low temperature damage in strawberry production, 'Benihoppe' strawberry (Fragaria ananassa Duch) was used as a material, so the effects of astaxanthin treatment on strawberry seedlings under low temperature stress was studies. The results showed that compared with the...

In this experiment, we studied the effects of astaxanthin on the growth and resistance of strawberry tissue culture seedlings under salt stress. The samples were treated with astaxanthin concentrations of 0, 5, 10, 50, 100, 200 mol/L. The results show that there is a rise in content of chlorophyll, ascorbic...

The effects of intercropping with four hyperaccululator plants Galinsoga parviflora, Sigesbeckia orientalis, Solanum nigrum and Crassocephalum crepidioide on soil enzyme activity and soil organic matter of grape seedlings under cadmium (Cd) stress were studied by a pot experiment. The results showed...

The effects of intercropping with four Bidens species (Bidens bipinnata, Bidens pilosa, Bidens parviflora and Bidens biternata) with grape seedlings on soil organic matter and soil enzyme activity under cadmium (Cd) stress were examined in order to provide the reference for grape production in cadmium...

A pot experiment was conducted to study the effects of intercropping with four Bidens species (Bidens bipinnata, Bidens pilosa, Bidens parviflora and Bidens biternata) on photosynthesis and soluble sugar content of grape seedlings under cadmium (Cd) stress. The result showed that net photosynthetic rate...

The effects of intercropping with four hyperaccululator plant species (Galinsoga parviflora, Sigesbeckia orientalis, Solanum nigrum and Crassocephalum crepidioide) on photosynthesis and soluble sugar content of grape seedlings under cadmium (Cd) stress were studied by a pot experiment. The results showed...

The paper discusses the influence of different transmission line models on lightning protection performance of transmission line under different circumstances by studying the mathematical model and calculation method of transmission lines. And the paper uses EMTP method to compare the actual calculation...

This paper introduces the design idea and realization method of AC constant current source, which is composed of direct digital synthesizer and digital potentiometer. The design has advantages of simple structure, strong practicability, high stability and high precision, and equipped with a standard...

In order to meet the requirement of sine excitation signal for the test system of the free-wire ground resistance, based on the discussion of SPWM(Sinusoidal Pulse Width Modulation) technology, this paper summarizes the advantages of using SPWM to realize the transmission of energy signals, and the feasibility...

In this paper, taking industrial grade chitosan as raw materials, CO oxidation degradation method for degradation of raw materials by using HAc-H2O2, carried out in cooperation with oxidation degradation of raw material system of the reaction process is studied in different degree, viscosity, and reaction...

Rabbiteye blueberry cv. 'Baldwin' has been thinned in varying degrees (20%-40% per ear) in fruit development period. We determined fruit maturation and qualities to evaluate thinning. Fruit qualities included vertical and horizontal diameter, single fruit weight, firmness, water content, soluble solids...

A "Thermal-Micromechanics" coupling approach for corrosion and crack of anchor in the corrosive environment is researched in this study. The thermal module of software PFC2D is applied to simulate diffusion of corrosive media in the concrete while the mechanics module of PFC2D is applied to model stress...

In order to study the difference of recycled aggregate concrete and ordinary concrete in basic mechanical properties. The artificial broken way is applied to abandoned concrete, recycled aggregate and cement slurry soaking are mixed, according to ordinary concrete mix design method of configuration of...

Coupling beam is the first line of seismic defense. In order to study on seismic performance of coupling beams between cast-in-situ and prefabricated frame shear wall based on finite element ABAQUS software analysis. The load-bearing process of 1 prefabricated coupling beam and 1 cast-in-situ coupling...

The separation and detection modules of the chromatographic system for the transformer gas-in-oil on-line monitoring is improved. The former single-column separation detection module is improved to double-column separation detection module, and compared with single-column detection module. The results...

This paper mainly introduces the types and features of abandoned medicine reverse logistics in China, as well as the causes of abandoned medicine reverse logistics. The paper also analyzed the problems existing in the abandoned medicine reverse logistics development in our country and analyzed to find...

In order to keep the balance between construction industry development and environment protection, achieve the sustainable development between economy and the environment. As a part of sustainable development policy, this study aims to replace fly ash with volcanic powder for making concrete. By making...