bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Failure Characteristic Simulation of Seam Floor for Coal Mining above Confined Aquifer Based on Fluid-Solid Coupling Theory
Authors: Zhang Yu Jun
Published: October 2014

Water inrush is one of the main types of coal mine water disaster. Based on fluid-solid coupling theory, the confined water inrush numerical model is performed using FLAC3D program and similar simulation experiment, and the floor damage field and confined water vector field are simulated. The results show that, in the coupling action of mining stress and pressure of confined water, the mining floor was divided into four zones, namely the mining damage zone, effective confining protection zone, confined water soil-fluid coupling lifting zone, original confined water lifting zone. Confined water-conductive zone with the periodic roof pressure fluctuate, at each pressure and flowing zone height reaches the maximum, rise with height remained unchanged, the distribution shape of a "wave", water inrush is the results of effective connectivity of mining damage zone and Confined water-conductive zone, plate thickness of water-resisting layer exists or not, waterproof performance and the pressure of confined water inrush size is the key
Analysis and Application about Coal Mine System Dynamics Model Based on Non-Linear Regression
Authors: Chen Jing , Yang Yong Jie , Cao Qing Gui
Published: October 2014

Author thinks that the three factors’ state of person, things, environment is decided by safety input, their different state meeting determined safe production. It can reduce accident by reducing three factors’ occurrence probability and changing safety investment object and quantity. According to the rule, the paper construct coal mine safety system dynamics causality diagram by using system dynamics theory from safety management angle, and made data quantitative analysis by non-linear regression, found out the function relationship that can reflect system elements dynamic change. At last, took one coal mine as an example, it made macroscopic analysis using the model.
Influence of TiO2 on Noble Metal Based Catalysts for Lean NOx Reduction with CO
Authors: Li Ying Hua , Dong Chun Xin , Zou Ji Ying , Liu Hui , Guo Jing Hai , Lu Wen Long
Published: October 2014

The performance of various noble metal based catalysts for the NOx reduction in the CO-rich conditions of simulated post Euro-IV diesel emissions at low temperature was investigated in this paper. Pd loaded catalyst showed higher catalytic activity than Ir or Rh loaded catalysts. Titania, as one of the support material, clearly promoted the deNOx process due to the synergy with alumina and Palladium. The TiO2 loading was optimized subsequently. As a result, Pd/TiO2/Al2O3 catalyst with Pd loading of 2.0 wt.% and TiO2 loading of 10 wt.% showed the NOx conversions of 25~46% in the temperature range of 200~250°C.
In Vivo Anti-Hypoxia and Anti-Fatigue Activities of Flavonoids from Bark of Eucommia ulmoides
Authors: Lin Jin Yang , Zhang Zhuo Ying
Published: October 2014

The present study was carried out to investigate anti-hypoxia and anti-fatigue activities of flavonoids from bark of Eucommia ulmoides (FEU) in mice. The animal were divided into four groups: control (C) group, low-dose FEU treated (LF) group, intermediate dose FEU treated (IF) group and high-dose FEU treated (HF) group. The treated groups received FEU (5, 15, 45mg/kg), while the control group received saline solution for 28 days. After 28 days, anti-hypoxia activity of FEU was assessed by the normobarie hypoxia test and anti-fatigue activity of FEU was assessed by the forced swimming test. The data showed that FEU could prolong survival time of oxygen deprivation and exhaustive swimming time by reducing BLA and BUN levels and increasing liver glycogen and muscle glycogen contents. Therefore, FEU had anti-hypoxia and anti-fatigue activities.
Structural Characteristics of Intracellular and Extracellular Organic Matter from Microcystis aeruginosa
Authors: Wang Huan , Liu Dong Mei , Wang Peng , Cui Fu Yi
Published: October 2014

Algogenic organic matters (AOM) generate from two parts, that are extracellular organic matters (EOM) and intracellular organic matters (IOM). This paper compared the structural characteristics of IOM and EOM originated from Microcystis aeruginosa using techniques including ultra violet-visible spectrum (UV-VIS), Fourier infrared spectrum (FT-IR) and three-dimensional excitation emission matrix (EEM) fluorescence spectroscopy. The results demonstrated that concentrations of the organic matter in EOM were less than that in IOM. EOM has less characteristic absorption peaks. There were more aromatic ring compounds, more protein and amino acids in IOM than EOM.
Total Antioxidant Activity of Substances Extracted from JinHua Ham In Vivo
Authors: Chen Xu , Zhou Xiao Li , Hao Ting Feng , Zhou Yi Ming , Xiao Ying , He Li Qing
Published: October 2014

This study was designed to evaluate the antioxidant activity of samples extracted from Jinhua ham. The activities of SOD and contents of MDA and NO were measured after mice were kept on feeding the four peaks separated by using chromatographic column. Peak-3 obviously enhanced the activity of SOD and MDA. Peak-1 and peak-2 had little influence on the activity of SOD and MDA. Peak-4 decreased their activities. All peaks obviously decreased content of NO. Results showed that these four peaks had excellent antioxidant activity. Finally, influences of sample extracted from ham on SOD activity, MDA content and GSH-PX activity in vitro of mouse liver and heart were also studied. Certain dose of samples would lead the decrease of SOD activity, MDA content and GSH-PX activity. This results showed that the sample have certain oxidant capacity.
Ultrasonic Extraction and Component Analysis of Volatile Oil from Prunus Tomentosa Thunb Core
Authors: Pu Zhi Jun , Liu Yu Hong , Kai Xu , Wang Fei Fei , Song Ting Ting , Zhang Cheng Yi
Published: October 2014

AIIM To explore the optimal ultrasonic extraction process of volatile oil from prunus tomentosa and analyze the component. METHODS The orthogonal test was carried out with volatile oil rate t as the index,the grinding degree of material, solvent, ratio of material to liquid, ultrasonic time as factors by ultrasonic extraction method,the components were analyzed by GC-MS. RESULTS The main factors that affect the extraction of volatile oil from Prunus tomentosa thunb is extraction, followed by ultrasonic time and.grinding degree. A3B2C1D3 was the best extraction condition: Selection of ethyl ether as extraction agent, the particle size is 30 mesh, the 1:10 ratio of material to liquid, ultrasonic time for 40 min. GC-MS techniques were applied to analyze the chemical constituents of volatile oil, six kinds of main components were isolated and identified ,accumulating for 92.82% of the total volatile oil content . CONCLUSION The Ultrasonic extraction time is short, easy operation, high yield, experiment verified that the extraction rate is 0.6270% under the optimum extraction conditions and identified six main components.
The Influence on Storage Quality of Pleurotus Eryngii by 1-Methylcyclopropene Treatment
Authors: Zhao Chun Yan , Zhao Li Wei , Pi Yu Zhen , Wu Xi , Ma Fang Fei
Published: October 2014

The paper is concerned with 1-MCP effect on post-harvest Pleurotus eryngii weight loss rate, polyphenol oxidase (PPO) activity and fruit body microstructure at different storage stage.The results showed that compared with control group, the weight loss rate and PPO activity were decreased by 5.94% and 37.38% ,and its microstructure had least change after 14d when treated with 0.3µL/L 1-MCP.The weight loss rate and PPO activity also decreased by 5.42% and 33.98% respectively with least change in fruit body microstructure after 14d when treated with 1-MCP for 24h. It proved that the optimal 1-MCP processing concentration is 0.3µL/L and the most appropriate processing time is 24h. These processing conditions slowed down the weight loss rate and browning level ,also reduced the change of fruit bodies microstructure and extended storage period
Genotoxicity of Organic Extracts in Water from Jilin City Section of the Second Songhua River
Authors: Zhang Jing , Li Huan , Jin Shu Guang
Published: October 2014

The second Songhua River has severe organic contamination due to domestic sewage and industrial wastewater. It is important to determine its genotoxic activity, which is a potential hazard for human health. The micronucleus assay and lymphocytes SCGE assay were employed to examine the genotoxic activity of organic extracts of water samples taken from upstream, midstream and downstream in Jilin City section of the second Songhua River in dry season and in wet season, respectively. Micronucleus assay results showed that there were significant increases in water samples at doses of 25L/kg and 50L/kg. The genotoxicity seemed to be less when compared with the results from dry season to wet season and to be strong from upstream to downstream. A similar result was also obtained in DNA damage on lymphocytes by SCGE assay. These results indicate that the organic extracts of water samples taken from the Songhua River show genotoxic activity. The risks of potential harm for human health in the Songhua River should be studied further.
Design on Carbon Tax Model and its Simulation Results Analysis
Authors: Lv Wei
Published: October 2014

The carbon tax is levied on carbon dioxide emissions, its main role is to inhibit the use of fossil energy companies are. In this thesis, a carbon tax model, and the model of the simulation study, the researchers showed that a carbon tax can give companies the right to choose freely choose the way to cut emissions of carbon tax system. Such a system would encourage enterprises to adopt minimum cost level of output to produce.
Enlightenment of Japanese Garbage Disposal on Jilin Province Developing Low Carbon Economy
Authors: Wu Fan , Chen Zhen
Published: October 2014

In the background of climate issues of much worldwide attention, developing low carbon economy has become the mutual choice of all countries in the world. China is now currently facing serious international emission reduction pressure and economy development energy environment restriction. Japan, as an island country with extremely poor energy, is the most active advocator and promoter of low carbon economy, and through many years of low carbon development, it has accumulated rich experience. This paper discusses Japanese environment protection and low carbon path from the mutual interaction role of Japanese garbage classification recycling and low carbon economy, so as to combine Jilin Province garbage disposal feature to analyze our province to refer to the garbage processing mode.
Water Resource Scarcity and Social Adaptive Capacity for Regional Sustainable Development - A Case Study of Beijing and Tianjin
Authors: Zhang Hong Lei , Zhang Xue Hua , Zhang Hong Wei , Zhang Xu
Published: October 2014

The adaptive capacity to water resource scarcity is closely connected to social and economic issues and it is one of the key factors of the regional sustainable development. Accurate evaluation of the adaptive capacity is an important factor to understand the development potential of a region. Through introducing the concept of social adaptive ability, this paper combines social adaptive ability with the dynamic evaluation of water resource scarcity and sustainable supply capacity as a new evaluation method. The data from two provincial-level municipalities of China (Beijing and Tianjin) are selected as a case to evaluate regional sustainable development. The results show that social adaptive ability can increase water supply capacity and provide strong support for regional sustainable development.
A Study on Construction Path of Shenzhen International Low-Carbon City
Authors: Wang Dong , Guo Hao
Published: October 2014

Currently, as the economic development level of Shenzhen International Low-carbon City is relatively low and the industries are low-end, it belongs to the areas with high energy consumption, high pollution and low output. The construction path of the Low-carbon City mainly covers four aspects, namely low-carbon industries, green buildings, low-carbon transportation and low-carbon technology. The Low-carbon City can explore the path for realizing total carbon emission control through establishing regional carbon emission forecasting and monitoring system and carbon source and carbon sink accounting system.
Research on Driving Mechanism of Circular Economy Mode of High Energy Consuming Enterprises
Authors: Meng Ying , Wei Chen Chen , Zhang Kun
Published: October 2014

Because of “high investment, high consumption and high emissions” economic model, high energy consuming enterprises are facing with the shortage of resources and the environmental damage. Current the circular economy model enterprise accounts for the proportion of insurance enterprise is still relatively small, so it is necessary to study the driving mechanism of a circular economy model. From the view of market mechanism driving, system driving mechanism, culture mechanism system and government policy,the paper research on driving mechanism of circular economy mode of high energy consuming enterprises and establish the model. This paper study on the implementation of AMOS7.0 model structural equation analysis, and use the maximum likelihood method to get the result. We get the results that the market mechanism, system mechanism, government policy have a positive impact on business management.
Seemingly Unrelated Model of Forest Ecological Benefit and its Application
Authors: Bi Lei , Li Chang Sheng
Published: October 2014

Based on a modern statistical model, which is seemingly unrelated model, the paper defines the dependent and the independent variable set of forest ecological benefit, and formulates seemingly unrelated model of forest ecological benefit. Then forest ecological benefits including water reservation, soil fixation, fertility reservation, C02 absorption, atmosphere purify, microclimate improvement, wind sand suppression, flood and draught mitigation, forest recreation, animal protection, plant protection and noise elimination of State-owned Forest Region in Heilongjiang Province were calculated.
Energy Consumption, GDP, and Foreign Direct Investment in Germany
Authors: Kuo Kuo Cheng , Lai Sue Ling , Chancham Khunlaphat , Liu Ming
Published: October 2014

This research studies the causal relationship between energy consumption, gross domestic product (GDP), and foreign direct investment (FDI) in Germany for a period of 1971-2010. The empirical results reveal that there is a unidirectional causality running from GDP to energy consumption and from GDP running to FDI in Germany. This is due to the highly rising trends of economic activities in the country which can lead to the expansion in energy consumption. As there is an increase in economic activities within the country, then the growth rate will be in the rising path. As a result, the foreign investors will see the promising future and then invest in the host country. The conservative energy policy is recommended to support the energy saving because it will have little or no adverse effect on GDP. The energy efficiency should be applied by encouraging the use of renewable energy sources in economic activities as an alternative to stimulate the economic growth of the country. Also, the public expenditure should be expanded to increase the country’s economy and attract foreign investors. In addition, the government should support for the service industry such as insurance, finance and banking, and tourism because this type of industry does not consume as much energy as the manufacturing industry does in the overall manufacturing processes. Besides, the government should provide tax credit for the manufacturers who can fulfill the energy efficiency for their operation.
The Organization of SMEs Innovation Research Based on Circular Economy
Authors: Wang Jing Yi
Published: October 2014

The development of circular economy is an important way to sustainable human development. The SMEs can use the mode of circular economy to improve their competitiveness. Through the analysis symbiotic relationship between small and medium enterprises, the development environment for SMEs, and the system which SMEs in, we found that SMEs can innovate organizational structure, organizational processes, organizational culture based on circular economy. The SMEs may be change their survival and development if they innovate the companies’ organization from these three aspects.
Analysis of Carbon Emission Structure of Agricultural Ecosystem - A Case Study of Rural Areas Surrounding Yuqiao Reservoir in Ji County of Tianjin, China
Authors: Li Xue Mei , Yang Yan An , Hao Guang Ju
Published: October 2014

With the development of low carbon economy, there is increasing interest in integrating the idea of low carbon into rural life and agricultural ecosystem. Determination of the main carbon sources from agricultural ecological system is an important basic work to reduce carbon emissions and construct the low carbon new countryside. In this paper seven towns surrounding Yuqiao Reservoir as investigation objects were used to determine the main carbon sources. It has been found that land respiration is the main carbon emission sources of agriculture ecosystem through calculation and analysis. Carbon emissions produced by the land respiration account for 51.68% of the total emission, followed by carbon emissions generated by the rural life, which account for 42.37% of the total emission. Control of land planting structure and use of low carbon new energy are the main direction of rural carbon emission reduction in the future.
Application of RBF Neural Network in Dam Deformation Prediction
Authors: Xu Guang Hua
Published: October 2014

Dam deformation is a multivariate complicated and nonlinear problem, it’s unable to establish accurate mathematical model.A dam deformation prediction model based on RBF neural network was constructed in this paper to enhance prediction accuracy. Three closely related factors in dam deformation are hydraulic components, temperature component and aging components ,they were selected as Input vector of RBF neural network, dam deformation measured value as a model target output. In Matlab 2011b simulation software,50 groups Fengman dam quantitative observation data from 2012 to 2013 as the sample data,45 groups were used in RBF neural network model training, other 5 groups were used in testing for the model. The simulation result shows that testing value is very close to the true value in this method, the average relative error close to 3%. Effectiveness of the dam deformation prediction based on RBF neural network is Verified by experiments.
Analysis of Bifenthrin and its Enantiomer Using High Performance Liquid Chromatography
Authors: Fan Su Su , Shi Jian , Zhou Ling , Hang Yu Wen
Published: October 2014

Using the high performance liquid chromatography (HPLC) method, bifenthrin isomers can be split at a polysaccharide derivatives chiral stationary phase column, and two well distinguished peaks of bifenthrin isomers are obtained. The effects of mobile phase ratios, temperatures, and detection wavelengths on the separation results are discussed. The optimal chromatographic conditions are as follows: the mobile phase ratio is methanol: ammonium acetate salts = 80:20, the column temperature is 35°C, and the wavelength is set as 220 nm. Under the optimal conditions, the resolution of bifenthrin enantiomer can be as large as 3.0.
Study of China’s Highway Environmental Monitoring Network Planning
Authors: Zhang Fan , Cheng Shui Yuan , Zhong Ping , Wu Rui , Ma Ming Juan , Gong Wei Wei
Published: October 2014

Environmental monitoring of national highway is an important content of China’s environmental monitoring network in the transport field, a part of national environmental monitoring system, and also a significant basis for environmental protection supervision and management of the transport industry. Using the methods of spatial analysis, grid analysis, and optimization through ArcGIS, monitoring objects of Chinese national highway environmental monitoring network had been screened out. Among which, the environmental quality monitoring objects are composed of the national highway sensitive sections nearby or passing through 277 natural reserves, 32 national scenic areas, 7 of the world’s natural and cultural heritage sites, 8 important wetlands, 398 important reservoirs, and 193 state-level sensitive aquatic germ plasm resources conservation areas; and the pollutant emission monitoring objects include 316 long and extra-long tunnels, 539 service areas and 601 toll stations with large traffic volume. Environmental quality monitoring objects and pollutant emission monitoring objects form China’s National Highway Environmental Monitoring Network, which has filled the blank of highway environmental monitoring in the national environmental monitoring network. It will play a positive role in promoting the green development of China's transport industry.
Effect of SRT on the Denitrifying Dephosphorylation Process
Authors: Jia Yan Ping , Zong Qing , Zhang Lan He , Zhang Hai Feng
Published: October 2014

In order to achieve the simultaneous denitrification and dephosphorization from wastewater, the effect of SRT on denitrifying dephosphorylation process was investigated for a long time by using an anaerobic/anoxic sequencing batch reactor (A2SBR). The results showed that when SRT was controlled at 20 days, removal efficiency of PO43--P was kept at high value and it was higher than 90%, and removal efficiency of NO3--N and COD was 90.3% and 80.4%, respectively. A2SBR process can be operated steadily by using a periodical operation mode of 10min feeding, 2.5 h anaerobic and 3.5 h anoxic followed by 10 min aerobic, 90 min setting and 10 min withdraw. The whole system shows a good performance of denitrification and dephosphorization under a steady operation.
Purification Efficiency of Compound Aquatic Plants for the Eutrophic Water Body
Authors: Wang Hong , Wang Xin , Wang Shi Man , Ji Xian Chao
Published: October 2014

In order to study combination effect of aquatic plants for the purification of eutrophic wastewater, research was carried out in greenhouse with water hyacinth (Eichhornia crassipes), hornwort (Ceratophyllum demersumL) an water milfoil (Myriophyllum verticillatum L). In the treatment of water hyacinth + water milfoil , the removal efficiency of ammonium nitrogen (NH4+-N), nitrite nitrogen (NO3--N) , total nitrogen (TN), total phosphorus (TP) and COD was 74.7%, 61.7%, 65.6%, 73.8% and 50.8% respectively. And that of water hyacinth + hornwort was 79.0%, 52.6%, 67.5%, 46.2% and 56.9%. The combination of different aquatic plants have better removal efficiency than single species. Water milfoil showed good removal ability for the eutrophication pollutants, such as nitrogen and phosphorus, while hornwort was good at the purification of COD.
Removal of Phosphate Species from Solution by Adsorption onto Red and Grey Ceramic Clay Used as Adsorbent
Authors: Yao Yi Liang , Lu Chang Yu , Guan Wie Sheng , Gou Hai Gang , Huang Wei
Published: October 2014

Waste water is becoming more and more around us and phosphates exit everywhere in waste water. Eutrophication, the most common phenomenon caused by phosphate, can lead to water problems. Therefore, searching suitable materials to remove and control phosphate in waste water is of great significance. In this reach project, the method of adsorption was chosen to remove phosphate and two kinds of ceramic clay materials which were low cost and easily available as adsorbent for adsorption were used for phosphate removal. According to the removal efficiency of phosphate removal, temperature, solid to liquid ratio, the original concentration of phosphate and experiment time were studied in the experiments.
Experimental Study on the Preparation of Nutshell Activated Carbon and the Disposal of Catering Wastewater
Authors: Huang Jin Yong , Qin Ming , Peng Qiu Ping , Wen Sha , Zhang Yong Xiang
Published: October 2014

The study used self-made nutshell activated carbon and took catering wastewater as research object. After pretreatment, the catering wastewater was adsorbed by nutshell activated carbon.Throught investigating the adsorption value of methylene blue and iodine,the effect of Peach pit shell activated carbon is higher than others.The optimal conditions are determined: proper time of reaction 4 h, Peach shell activated carbon dosage 30 mg/L, pH 6.0, reaction temperature 30°C. Under this optimum, the removal rate of CODcr as well as grease can be as high as 92.75% and 87.05%, respectively.
Experimental Study on Treatment of Wastewater Containing Oil and Polyacrylamide by Aerobic and Anaerobic Bacteria
Authors: Ren Guang Meng , Pan Yu , Yang Xiu Min , Qiao Yan Yun , Li Hong Wei , Meng Chao , Xu Dong Yu
Published: October 2014

Wastewater containing oil and polyacylamide is a kind of organic wastewater, which is hard to treat. The combined process of moving-bed biofilm reactor and sulphate-reducing bacteria was used to treat the wastewater. Operating conditions of moving-bed biofilm reactor and sulphate-reducing bacteria were studied. Results indicate that the oil removal efficiency by moving-bed biofilm reactor can reach above 90% with 9 hours hydraulic retention time at 25°C, but it has no effect on polyacylamide. Sulphate-reducing bacteria can degrade polyacylamide, and polyacylamide conversion is about 50% at 37°C with 4 days culture time and 9ml inoculation size. The effluent quality of wastewater containing oil and polyacylamide can meet requirements of the first level in integrated wastewater discharge standard.
Research on the Influence of Overlying Water pH to the Sediment Release
Authors: Liu Xi , Xian Ping , Wen Ze Wei , Xiang Tao , Yang Long Hui , Guo Meng Fei
Published: October 2014

The results are shown that: When the overlying water pH is 7.0, the least impact of nitrogen, phosphorus and organic matter release in sediment. Under the neutral condition, after sediment release in deionized water NH3-N concentration was 1.86 mg.L-1, TP was 0.09 mg.L-1, COD was 22.2 mg.L-1 . In the nature water sediment release experiment, compared with no adjustment of pH the NH3-N emissions reduce by 9.4%, the sediment adsorbs TP from water increases 2.3 times. Through a period of a month typical lake quality monitoring found that there is presence of sediment NH3-N release into the overlying water and sediment adsorb TP from the overlying water.
Water Purification Using Aeration Techniques in the Lagoon
Authors: Kim Hyun Dong , Kim Kyu Han
Published: October 2014

Due to the increase in population and the standard of living along with rapid industrialization, various kinds of water demands have been increasing resulting high pollutant emissions. Moreover, the level of pollution in regards to the water quality of oceans, lagoons, and rivers has been aggravated. In particular, lagoons across the globe are suffering from the use of fertilizers, manual wastes and dead remains. A lack of dissolved oxygen (DO) has been a problem for the lagoon water quality. Many living creatures in the lagoon have become prone to death and their dead remains further aggravate the water quality. Dredging the bottom of lagoon to remove various wastes, vegetation inside the lagoon for self-purification and employing micro bubble machines to increase DO are methods to alleviate the problem. Alternative and additional solutions may be applied depend on the condition of the lagoon. For most lagoons are comprised of oxygen-deficient water mass, a micro bubble machine is particularly efficient for its micro-aeration in amplifying DO. Regular aeration method may accompany inefficiency in increasing the level of DO in the lower boundary of water since the airdrops easily rise to the surface. Micro bubble system is employed for less oxygen rise to the surface over regular aeration. In this study, Micro bubble device is applied to Youngrang Lagoon in the east coast of Korea to investigate the efficiency of micro bubble technique. DO alleviate operation shows significant changes in DO level, yet it requires excessively high costs. To eliminate the shortcomings of the operation, renewable energy such as solar and wind energy are under consideration for valuable alternatives.
Current Situation and the Harm of Soil Heavy Metal Pollution and Food Safety
Authors: Guan Xue , Sun Li Na
Published: October 2014

In this paper, induction and summary of the current situation and the harm of heavy metal pollution in soils and influence on food safety has been made. It introduced the soil heavy metal into the food, and put forward specific measures to reduce the impact of heavy metal on food security, in order to further attention to food safety and soil heavy metal pollution prevention and control technology and policy.
Design of Methane Digester for Jeddah Industrial Estate Waste Water Treatment Plant
Authors: Abu-Hamdeh Nidal
Published: October 2014

In this paper, the use of water hyacinth as a feedstock for methane digester was examined. The main idea behind this work was how to make use of a resource (water hyacinth) that might otherwise have gone to waste. Biogas was produced from this digester which is a burnable fuel. Moreover, the digester sludge was used as fertilizer. Jeddah Waste Water Treatment Plant is a small plant with a total area of 4200 m2 of ponds that could be used to produce water hyacinth when the plant operates at its full capacity. The following tasks were accomplished in sequence; sizing the digester, sizing the inlet and outlet tanks, designing the digester walls, sizing and designing the gas holder, and estimating the amount of insulation needed. It was found that the digester is able to produce approximately 9.55 m3/day of biogas.
Using Yeast to Treat Soybean Wastewater and Realize Resource Recovery
Authors: Lu Hai Feng , Zhang Guang Ming , Zhou Jing Jing
Published: October 2014

Soybean wastewater is a kind of nutrients wastewater. Using yeast to treat this kind of wastewater can not only degrade high concentration organic pollutants, but the yeast cell itself also can be harvest and realize the resources recycling. In this work, the feasibility and the optimal conditions of using yeast to treat soybean wastewater were investigated. Results showed that the initial COD and hydraulic retention time were the critical factors influencing COD degradation. Under 28 °C and with the initial soybean wastewater of 4800 mg/L, using Candida utilis with 20% of inoculums dosage could realize the higher reduction of the concentration of COD. And after 18 h’s treatment with rotating speed of 160 rpm, the COD removal could reach to 90%. The yeast wastewater treatment technology has the prospect of resources recycling. Besides, the pH value is very important for yeast to treat soybean wastewater.
From the Perspective of Social Stratification: Social Assessment Research on Waste Incineration BOT Projects
Authors: Gu An Qi , Shi Guo Qing , Lou Yu Qi
Published: October 2014

With acceleration of urbanization, BOT project on waste incineration in China has been developing rapidly in recent years. Starting from present situation of waste disposal, and combining generating electricity through refuse incineration in a city, this paper analyzes content and characteristics of social risk assessment on waste incineration project and further draws the frame of social risk assessment on waste incineration BOT project. Accordingly, put forward risk response suggestions on generating electricity project through refuse incineration of urban solid waste.
The Environmental Problem of Household Hazardous Waste Generation and Treatment
Authors: Ryzhakova Maria G. , Maslikov Vladimir I. , Chusov Alexander N. , Korablev Vadim V.
Published: October 2014

In the last decade the problem of household hazardous waste (HHW) is becoming increasingly important, in connection with expansion of the assortment and increase of the total number. The household hazardous waste include: mercury-containing fluorescent lamps and other devices, batteries, electrical and electronic devices (waste electrical and electronic equipment), remnants of household chemicals and medicines, and others.Such waste contains in its chemical composition of hazardous substances, which have negative impact on the environment and human health. If dangerous components are not allocated from the overall flow of low-hazardous municipal solid waste (MSW), in the processing or disposal in landfills, they begin to have a negative impact on the environment, which tends to accumulate.The article presents the assessment of the hazard class of solid waste, containing a specified number of HHW (according to various data about their morphological composition), using calculation methods approved in the Russian Federation. The analysis of the impact of HHW in the composition of MSW on the environment during the implementation of the main ways of MSW treatment is performed. A brief review of modern technologies of collection and processing of HHW in Russia and other countries is presented and recommendations are given.
Smart Basin and its Application in Integrated Management of River Basin
Authors: Ye Yun Tao , Jiang Yun Zhong , Yang Hui Hui , Zhao Hong Li , Liang Li Li
Published: October 2014

An important concept called Smart Basin and its theoretical framework are proposed to cope with the complex situation of water resources caused by the global climate change and excessive human activities. The paper analyses the strategic demand and the technical impetus factor making Smart Basin emergence, elaborates its implication and the connotation,designs its overall frame, and introduces the key technologies and the supported platform used by it. And then applications of Smart Basin in the field of flood control, drought resist, pollution prevention and water resources management are studied. As the highest development level of water resources informatization, Smart Basin will generate new growth points of discipline and have a good application prospect in the every field of integrated watershed management.
Study on Ecological Effect of Urban Landscape Water in Jinan, Shandong Province
Authors: Xu Qiao Yi , Wang Wei Ping , Deng Hai Yan
Published: October 2014

As an important part of urban water system, urban landscape water plays a significant role in the improvement of urban ecological effect, such as adjusting regional climate, increasing water vapor content and reducing urban heat land effect. At present, the pattern of landscape water has a lot of research findings, but quantitative analysis of the impact on ecological function of urban landscape water is too little. This paper took hydrologic station upstream in Huangtaiqiao in Jinan city as study area and respectively compared ecological effect of landscape water with land surface on adjusting regional temperature from two periods of annual and summer evaporation. The result shows that landscape water does better in this aspect. So it is essential to pay extraordinary attention to reasonably planning landscape water of land use in the future in order to give full play to its ecological effect.
Hydraulic Calculation Principle and Todini Formulation Algorithm Analysis
Authors: Zhao Xin , Li Qi Fen , Xu Jing Jing , Song Li Fei , Zhao Lin Hui , Zhao Jia Lin , Zhang Lei
Published: October 2014

The Todini formulation is effectively a type of Q–H equation formulation and it has an extremely efficient approach to the inversion of the Jacobian matrix by partitioning the governing equations in a smart way. The advantage of the Todini formulation is that the Jacobian matrices are symmetric. The aim of this paper is to study the hydraulic calculation principle and analyze the relationship between physical parameters and hydraulic calculation for each step. The comprehensive resistance factor (r) is affected by the loss coefficient along the tracks (λ), and the loss coefficient along the tracks (λ) is affected by the Reynolds number (Re), the Reynolds number (Re) is affected by the kinematic viscosity (), and the kinematic viscosity () is affected by the temperature (T). The coupling of hydraulic characteristics and thermal properties of the fluid can be got by modifying the physical parameters, and this article provided evidences for the further study.
Flocculation of Chitosan and the Application in Water Treatment
Authors: Xu Yue Qun , Liu Shi Long , Zhao Hong Jie
Published: October 2014

The Chitosan flocculant characteristics of natural, non-toxic, safe and have a good adsorption performance. This article briefly describes the physical properties and mechanism of flocculation of Chitosan, focuses on Chitosan flocculant in water treatment applications.
Equilibriums of an SIS Epidemic Model
Authors: Wang Jing Hai
Published: October 2014

An SIS epidemic model with nonlinear incidence rate is considered. At the same time we decide that the birth rate is equal to death rate. We get the basic reproduction number . We analyze the existences of the equilibriums of the system. There are some endemic equilibriums and one disease-free equilibrium of the system.
Pedestrian Detection Based on Bag-of-Visual-Words and SVM Method
Authors: Li Jun , Liao Yuan Jiang , Zhang Hong Mei
Published: October 2014

We propose a pedestrian detection approach based on bag-of-visual-words and SVM method. The image feature extraction and representation are extremely challenging tasks in pedestrian detection approach, which could impact the performance of pedestrian detection. In this paper, we propose that visual vocabulary is built by clustering SIFT features of image to visual words. Classification is taken using the support vector machine (SVM), for SVM having good non-linear function learning and generalization capability solid. Numerical experiments in the evaluation of INRIATREC pedestrian data sets and the action movies demonstrate that our method shows better performance.
Correlation Analysis of Target Lane’s Evaluation Data
Authors: Zhang Guang Wei , Zhang Xin Ting
Published: October 2014

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Strength Analysis of Bulk Cement Truck Body Based on NASTRAN
Authors: Jia Qian
Published: October 2014

With the rapid development of our nation’s economic construction, bulk cement trucks have developed rapidly among the special vehicles. The entity model of the bulk cement body tank was created using 3D drawing software UG. The model’s accuracy was proved through calculation and on the basis of the entity model the strength of structure was analyzed by Finite Element Analysis software Nastran. Lightweight processing of steel material was made to reduce the overall quality of cement truck and the loading capacity was increased under the condition of meeting the design strength. The theory basis on the development research and optimization design of bulk cement truck tank has been provided.
Comparison of COREX and COSRI Process Technology Development
Authors: Zhou Xiao Lei , Shi Zhe , Zhang Gui Fang , Du Zhong Ning
Published: October 2014

COREX and COSRI smelting reduction iron-making process could directly use coal as reductant. So it is necessary to contrast the development and technology of two kinds smelting reduction iron-making process. Due to lack of funds, COSRI smelting reduction iron-making process has not been fully developed. And the COREX has completed the transformation to the industrial production. But on the whole, COSRI has good prospects for development as COREX.
"Theory of Machines and Mechanism" Teaching Reform to Inspire Mechanical Design Thinking
Authors: Wu Yang Fang
Published: October 2014

Theory of Machines and Mechanism as a major technology foundation course of mechanical engineering plays an important role in connecting professional education. From the perspective of inspiring mechanical design thinking, put forward the idea of classroom teaching reform for the curriculum. The knowledge of the curriculum is combed; the target ability of the curriculum is specified; the teaching plans are designed to inspire design thinking; the teaching mode is reformed, and the extracurricular learning mode is enhanced. This paper provides a reference for the classroom teaching reform in the other mechanical course.
Analysis on Individual Strategy Behavior Based on Differentiating Spatial Cognition in Special Event
Authors: Li Zhi Hong , Yuan Zhen Zhou , Zhao Li
Published: October 2014

Among the one of most interesting and challenging theoretical and practical problems in describing pedestrians behavior are evacuating tactics preference. Compared to other modes of transports, the features of pedestrian route preference are that everyone has a different decision-making ability based on differentiating spatial recognition. This article focused on the correlative issues between pedestrian characteristic and their routing choice behavior in special event. As the data collected from a field survey conducted in a large market exposed, we analyzed the difference of individual strategy behavior, which showed that different pedestrians held different preferences and probabilities of choosing a particular road for evacuation due to diversity of spatial cognition. They searched their corresponding personalized spatial cognitive road network to find some roads which maybe a route to the destination. According to the questionnaire, it was the fact that 62% of people would choose the most familiar paths parts of which may be shortest one. Each pedestrian derived his own road network from the roads selected from different levels consisted with personal characteristics. Through this paper, the author expected to make a step that the pedestrian behavior simulation will advance on integrating the human cognition from theoretical precision and managers can realize the importance of spatial knowledge and correct strategy for evacuation.
Research on Evaluation System for Comprehensive Quality of College and University Students Based on Analytic Hierarchy Process Model
Authors: Wang Li Ying
Published: October 2014

To evaluate comprehensive of college and university students is a crucial issue that needs to be solved for quality education at present. Multiple factors should be taken into consideration in the process of evaluating students’ comprehensive quality. For example, this university adopts analytic hierarchy process to establish an AHP model for evaluating students’ comprehensive quality based on practical investigation and comprehensive analysis on various factors, through which weight of each factor among 13 factors influencing comprehensive quality of college and university students in overall evaluation is worked out. Consistency check indicates that result achieved through this model can realize objective evaluation on comprehensive quality of college and university students in a more accurate and clear way.
Effect of Carbon Black Loading on Tensile Properties, Electrical Conductivity and Swelling Behavior of Poly(vinyl) Chloride/Polyethylene Oxide Conductive Films
Authors: Siti Hajar Mohd Din , Supri A.Ghani , Jalil Jalilah Abd
Published: October 2014

The effects of carbon black (CB) loading on the tensile properties, electrical conductivity and swelling behavior of PVC/PEO conductive film were studied. Thin conductive film incorporation of inorganic filler, carbon black and PVC-PEO polymer blend were prepared by solution casting method. The results show that tensile strength and modulus of elasticity increase with increasing carbon black loading until 25 wt%. The percentage of mass swell test were increase with increasing carbon black loading. The result also shows that electrical conductivity of the PVC/PEO conductive film increase linearly with the carbon black loading.
Tensile and Morphological Properties of Spear Grass (Imperata cylindrica) Filled Low Density Polyethylene/ Thermoplastic Soya Spent Powder Blends
Authors: Nuradibah M.A. , Ting Sam Sung , Noimam N.Z. , Hanafi Ismail
Published: October 2014

This study investigate about the tensile and morphological properties of degradable polymer produce from low density polyethylene/ thermoplastic soya spent powder filled spear grass loading varied from 0-3 wt %. Meanwhile, ratio of LDPE/ TSSP which is 95:5 was used as matrix in this composite. The tensile strength increased up to addition of 1.5 wt% spear grass and decreased when 3 wt% spear grass was added. SEM micrograph showed fibrils formation for sample with 1.5 wt% spear grass as it has the highest elongation at break compared to 1 wt% and 3 wt % spear grass.
The Application of Wavelet Denoise in Sampled Grating Comb Filter
Authors: Zhu Dan Dan , Wang Hai Fang
Published: October 2014

This paper based on the theoretical basis of sampled fiber grating, using transfer matrix method to analyze sampled fiber grating. By changing the parameters of sampled fiber grating and simulating its reflective spectrum. Four optical comb filters based on sampled grating were designed. Then the wavelet de-noising principle was introduced. In order to optimize designing of sampling grating comb filter, a filtering analysis and denoising method by using wavelet analysis to denoise was proposed. Finally, the automatic one-dimensional denoising was used with db6 wavelet. It not only denoise reflective spectrum noise, but also play a certain inhibition in the side-lobe interference the signal received. The smooth reflective spectrum can be got after denoising.
A New Model-Free Predictive Control Method Using Input and Output Data
Authors: Yamamoto Shigeru
Published: October 2014

The purpose of this paper is to present a new predictive control utilizing online data and stored data of input/output of the controlled system. The conventional predictive control methods utilize the mathematical model of the control system to predict an optimal future input to control the system. The model is usually obtained by a standard system identification method from the measured input/output data. The proposed method does not require the mathematical model to predict the optimal future control input to achieve the desired output. This control strategy, called just-in-time, was originally proposed by Inoue and Yamamoto in 2004. In this paper, we proposed a simplified version of the original just-in-time predictive control method.
Research on Collaborative Design System of Green Building Information Model
Authors: Luo Xue Song , Xu Min , Gan Chun
Published: October 2014

In order to solve the problems existing in the traditional architectural design process, so as to realize the green building model of task coordination, this article through the analysis of the architectural design work in the process of information flow characteristics, based on green building information model of collaborative design decision-making system, to supervise and control the information flow process. IDEF0s method is applied to traffic simulation model was set up at the same time, in order to realize the green building effective connection each process, various professional and task coordination, maximize the efficiency of the total project life cycle, the purpose of improving the efficiency of resource utilization.
The Research of Pressure Comfort on the Stretch Pants
Authors: Xia Lei , Yin Ling
Published: October 2014

In this study, eight different elastic fabrics were chosen to test their properties, ten testers tried on eight elastic pants made by the fabrics, and objective press test on three postures was carried on. Through analyzing the pressure values in five body points on three postures, the pressure distribution of the five parts of the body, and the relationship between the pressure and fabric properties were obtained.