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It was found that chlorogenic acid could obviously inhibit the chemiluminescence generated from luminol and dissolved oxygen by occurring redox in alkaline medium. The decrease of CL intensity was linearly dependent on chlorogenic acid concentration in the range from 1.0 ng·ml−1 to 100.0 ng·ml−1 (r2 = 0.9978) offering a detection limit as low as 0.3 ng·ml−1 (3σ). At a flow rate of 2.0 ml·min−1, one...
The protective exploitation of marine cultural landscapes is important part of cultural industry system of Zhejiang province. Base on analysis of Present Situation of Protection, Development and Utilization of marine cultural landscapes in Zhejiang province, the paper advanced Connotation of protective exploitation of marine cultural landscapes in Zhejiang province. The exploitation practice in Zhejiang...
With rapid development of economy in Hainan, the environmental issue has become more and more a focus of attention. On the basis of current research achievements on carrying capacity, first of all, this article established a model of carrying capacity taking into consideration of island environmental factors. Then, with the method of this model, this article made an empirical analysis on the environmental...
The disinfection efficiency of Cl2 and ClO2 on water purification was compared. The result showed that with the same dosage, ClO2 had better bactericidal efficiency than Cl2 and produced less trihalomethane compounds than Cl2. ClO2 disinfection has the advantages of high efficiency and safety in use. ClO2 was suggested as a new disinfectant in supply water treatment.
To explore di-n-butyl phthalate (DBP) and d (i2-ethylhexyl) phthalate (DOP) joint action of the testes of adult male rats to the structure and function of influence. Forty healthy male Sprague-Dawley rats were divided randomly into four groups and were administered respectively with DBP (500mg/kg), DOP (500 mg/kg), combined group(DBP 500mg/kg, DOP 500 mg/kg), negative control group (corn oil) water...
This paper mainly studies on ecological values of Chinese traditional cave dwellings on Loess Plateau. Firstly, it states the plain ecological theories of general Chinese traditional dwellings, which are also the implicit guidelines for building cave dwellings; then it discusses the specific ecological values of the cave dwellings, such as energy saving, land saving and water saving; besides, it points...
In urban construction, waterfront landscape design is an important component of the city's landscape system design. How to establish correct design concepts and explore the historical and cultural characteristics of the waterfront landscape? This has very important significance. In this paper, it will analyse the existing problems in the China's urban waterfront landscape design, and explore strengthening...
Phenanthroindolizidine and phenanthroquinolizidine alkaloids have attracted much attention because of their antitumor, antiamoebic, antibacterial, and antifungal activities. This paper summarizes the chemical structure, biological activities and sythesis of these two types of alkaloids.
Green Party contemporary party politics is the emergence of a new phenomenon, is a new political force to “eco-priority” basis established its own independent system of values and political ideas. Build a socialist harmonious society, our party starting from the comprehensive building of a comfortable society to make a major strategic task. Green Party ecological idea of some value orientation and...
We study the near field earthquake ground motion records and engineering damage caused by the great 2008 Mw7.9 Sichuan Wenchuan earthquake. Statistical analysis indicates: Although the earthquake has a thrust faulting mechanism, the dominating unilateral rupture propagation caused a distinct rupture directivity effect both on ground motion recordings and on the engineering damage. In detail, (1) The...
Nuclear transfer technology has the most important value in the academic research, animal industry and the livestock production. In the present paper, the developmental status of mammals in nuclear transfer was reviewed. Also, the research region and huge research achievement were summarized. Furthermore, the application and prospect of nuclear transfer technology in relational areas are presented.
The investigation reported here deals with a bioactivity guided extraction of natural antibacterial components from powdered dried peanut hulls. By orthogonal experiment and single factor experiments, the extraction was optimized with regard to solvents and operational parameters, such as temperature, solid-to-liquid ratio, and extraction time. Ethyl acetate solvent was found to be optimum in combination...
Tocopherols, the lipid-soluble antioxidants known collectively as vitamin E, are produced by photosynthetic organisms, which play important roles not only in human and animals but plants as well. 4-hydroxyphenylpyruvic acid dioxygenase is the first committed enzyme of this biosynthesis pathway. To better understand the biosynthesis pathway and mechanism in the one of the most important staple crop...
Yimeng mountain area is the typical rocky mountain areas of Northern China. The local soil with loose texture and easy to lose was developed from the gneiss and sandstone. A small watershed in Yimeng mountain area of Shandong Province was chose to make a preliminary estimate about soil erosion rates of natural soils and cultivated soils on sloping land using the 137CS tracer method and soil erosion...
Land use and land cover change (LUCC) plays an important role in the evolution of the global environment and sustainable development. Land use is related to natural geography and human actions, and the factors during some period are mainly studied in LUCC. Most researches are concerned about rural area but few about urban fringe area. In this paper, land use change in the outskirtsis studied, taking...
The geological environment is the basic carrier of human survival and development, today the scope and scale of human activity are beyond that at any time of human development history, thus make the interaction and mutual influence of human itself and geological environment are also up to an unprecedented level. Along with the development of science and technology, the raise of productivity level...
Based on the transition probability calculated by the transition rate of land use and land cover change (LUCC) area, the simulated LUCC area almost equal to the actual by Markov chain model in Tibetan Plateau. It shows that Markov chain model can be used to simulate the land use and land cover change of Tibetan Plateau. From the results of simulated LUCC of Tibetan Plateau in the next 20 to 40 years...
The deterioration of traditional environmental problems has threaten the human security in worldwide and the environmental security has come into being. Inrecent research status of environmental security, the authors put a new research concept that researching the environmental security problems in perspective of macro-security. Environmental security, considered as one of the important branches of...
The ecological socialism is an important 1socialism ideological trend and faction deriving from ecology movement in the west in 1970s. It contains many valuable thoughts,theories and viewpoints, which have the significant enlightenment function in constructing the socialist harmonious society at present. Constructing the socialist harmonious society should stick to the socialist road: should follow...
This paper researches the ecological environment from the perspective of system science and reveals that the ecological environment has the properties of unity and dynamic. Then the ecological environment is probed spiritually and materially, that is, to realize an all-out and multi-leveled interpretation of the ecological environment, the spiritual ecology is studied from the perspective of ecological...
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