This paper confirmed analytic hierarchy process(AHP) as the evaluation basic *** this method,We set up a universal evaluation index system of mineral resources *** index system consisted of 19 indexes,it contained thr...
This paper confirmed analytic hierarchy process(AHP) as the evaluation basic *** this method,We set up a universal evaluation index system of mineral resources *** index system consisted of 19 indexes,it contained three aspects:domestic mineral resource endowment,mineral resources supply and national security capability and measures,so the scientific and integrity of index system were *** on the characteristic,level and relevant standard of every evaluation index,evaluation criterion were *** application example was showing the feasibility and effectiveness of the proposed approach.
Biomass fast pyrolysis liquefaction has aroused great attention and interests in recent years. However,its direct use as liquid fuel raises many problems because of its acidity,high oxygen content and high water *** t...
Biomass fast pyrolysis liquefaction has aroused great attention and interests in recent years. However,its direct use as liquid fuel raises many problems because of its acidity,high oxygen content and high water *** to its poor properties,several methods in upgrading original bio-oil were developed in recent *** paper reviews the main methods of upgrading biomass pyrolysis oil such as hydrodeoxygenation,catalytic cracking of pyrolysis vapors,emulsification and *** advantages and shortcomings of upgrading methods were discussed and ***,the problems and focuses were summarized with some suggestions presented on upgrading and applications of bio-oil in the decades.
In recent years,the exploitation of non-optimal tourism areas has been pervasive,while,tourism study has not paid enough attention to it,to the research about theoretical problems has lagged in *** the background,the ...
In recent years,the exploitation of non-optimal tourism areas has been pervasive,while,tourism study has not paid enough attention to it,to the research about theoretical problems has lagged in *** the background,the paper studies the matter,optimizing drive mechanism and other issues of non-optimal tourism areas,and taking Yishui tourism phenomenon as example to carry on the demonstration research of non-optimal tourism resource areas development strategy.
The ecological footprints and ecological carrying capacity of Linyi between the years of 1999 and 2008 are calculated and analyzed based on die data of statistical yearbook and Land and Resources Bureau of *** results...
The ecological footprints and ecological carrying capacity of Linyi between the years of 1999 and 2008 are calculated and analyzed based on die data of statistical yearbook and Land and Resources Bureau of *** results show that the average ecological footprint,capacity and deficit in this period are 2.4056 hm/cap,1.5828 hm/cap and 0.8228 hmVcap respectively,so it can be concluded that the city is in a state of unsustainable ***,the downward trend overall of 10 000 Yuan GDP ecological footprint indicates that the rate of resource-utilizing is improving and the economic growth mode is changing towards benign in Linyi.
This paper outlines the application of tree-ring studying methods(tree ring width analysis, tree-ring density analysis and stable isotope analysis) in climate change and die latest research in this area to show the im...
This paper outlines the application of tree-ring studying methods(tree ring width analysis, tree-ring density analysis and stable isotope analysis) in climate change and die latest research in this area to show the important role that these researches had played in the global climate change.
Through the analysis of hydrochemical composition of natural water in Dongping Lake,the type and fundamental characteristics of hydrochemistry can be *** water is characterized by middle minieralized degree and hardne...
Through the analysis of hydrochemical composition of natural water in Dongping Lake,the type and fundamental characteristics of hydrochemistry can be *** water is characterized by middle minieralized degree and hardness,rich dissolve doxygen,and low alkaline *** type of water is ***,through the compositive assessment of water quality in this lake,the following conclusion can be given:mesoeutrophic-eutrophic status of the water body occupies the whole year of this lake.
Environmental pressure is generally measured by resource consumption and pollutant emission. To the 1990-2007 data sample,studying decoupling association with GDP and energy consumption on the base of decoupling indic...
Environmental pressure is generally measured by resource consumption and pollutant emission. To the 1990-2007 data sample,studying decoupling association with GDP and energy consumption on the base of decoupling indicator,and further analyzing decoupling indicators relation between GDP and CO2、SO2、*** can come to conclusion that China is relative decoupling situation between economic growth and S02..COD in 1990-2007,but degree of decoupling is different between *** to analyze different periods trends,so as far as possible objective assessment of economic growth pressure to environment.
This article is based on Linyi City's population density in 1995 and 2000,analyzing the correlation between the average population density of Linyi City and altitude,land use,river systems and the road *** Statist...
This article is based on Linyi City's population density in 1995 and 2000,analyzing the correlation between the average population density of Linyi City and altitude,land use,river systems and the road *** Statistics in the software ARCGIS was used as the main analysis tool to statistics population density in 1995 and 2000 changing,and to compare,analyzing the factors affecting the population distribution.
The effects of heavy metal ions cadmium(Cd) on the activity and conformation of horseradish peroxidase（HRP） were investigated by some spectroscopic *** was found that Cd ion,as a heavy metal element in the environme...
The effects of heavy metal ions cadmium(Cd) on the activity and conformation of horseradish peroxidase（HRP） were investigated by some spectroscopic *** was found that Cd ion,as a heavy metal element in the environment,would combined with HRP and form the complex of Cd-HRP,alter the secondary structure of HRP,which the percentage of p-sheet and random coil was increased by 10.9%and 20.0%respectively,and the percentages of a-helix and P-turn was decreased by 55.6%and 12.8%after adding Cd ion into HRP *** apparent bonding constant（Ka） was 1.78×10～*** conformation change would result in the activity inhibition of HRP;this might be one of the toxic mechanisms of Cd on the organism.
The method on the decolorization of bromocresol green by Fenton reagent has been *** effects of amount of HO,bromocresol green and Fe,as well as the pH value of the solution,reaction temperature and time on the decolo...
The method on the decolorization of bromocresol green by Fenton reagent has been *** effects of amount of HO,bromocresol green and Fe,as well as the pH value of the solution,reaction temperature and time on the decolorization rate of bromocresol green in wastewater were investigated. Experiments show that the best conditions are as follows:pH of 3.0,HO concentration of 12.82mmol·L, Fe concentration of l.4×10mol·L,bromocresol green concentration of 1.4×10 mol·L,reaction 60 min at 30℃or 5min at 60℃,The decolorization rate of bromocresol green waste water reached 95.6%.This method is simple,rapid,low consumption with no secondary pollution.
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