Wyniki wyszukiwania - Biblioteka Nauki

1

A system dynamics approach to eco-industry system effects and trends

100%

Yu H. , Dong S. , Li F.

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nr 3

EN

Ecological industry can be thought of as a move toward sustainable development while reducing waste and avoiding pollution, especially in resource-based cities. This study presents a system dynamics approach to analyzing the environmental and economic effects of the eco-industry system by simulating long-term trends. Focusing on West China’s typical coal-based city of Huinong, a system dynamics model named industry-effect-policy system dynamics (IEP-SD) has been designed to evaluate the integrated effects of the industrial system. The simulation results indicate progressive environmental and economic benefits of the eco-industry system, along with prospective economic growth. In addition, the model identifies some defects and disadvantages of western China’s typical industry system, such as the extensive increase of local policy-preferential industrial sectors, limited and torpid development of other industries, and a certain level of industrial structure instability. An industrial structure coordination option is finally offered and then proved by the model to balance local environmental and economic effects.

2

Wind characteristics and wind energy assessment in the Barents Sea based on ERA-Interim reanalysis

100%

Duan C. , Wang Z. , Dong S. , Zhenkun L.

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tom Vol. 47, No. 4

415--428

EN

The basic analysis of long-term wind characteristics and wind energy resources in the Barents Sea was carried out from 1996 to 2015 based on the ERA-Interim reanalysis dataset from ECMWF. In recent years, it has been possible to exploit the wind power resources in the Barents Sea at the hub height due to the sea ice cover retreat in the northeast direction. Based on the NSDIC monthly sea ice concentration data, the entire Barents Sea has been partitioned into the ice-free zone and the ice zone. Spatial and temporal distributions of the mean monthly and annual wind speed and wind power density are presented in both zones. Seven points were selected at different locations in the ice-free zone so as to obtain and study the wind roses, the interannual wind power variation and the annual average net electric energy output. For extreme wind speed parameters, the Pearson type III distribution provides better fitness of annual speed extrema and the Gumbel distribution performs well with higher speeds at longer return periods.

3

Study of CO2 emissions from traffic and CO2 sequestration by vegetation based on eddy covariance flux measurements in suburb of Beijing, China

88%

Lia Y. , Gao J. , Dong S. , Zheng J. , Jiac X.

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nr 1

4

Effect of plastic mulching on the photosynthetic capacity, endogenous hormones and root yield of summer-sown sweet potato (Ipomoea batatas (L). Lam.) in Northern China

75%

Hou F. , Zhang L. , Xie B. , Dong S. , Zhang H. , Li A. , Wang Q.

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nr 08

EN

A field experiment was conducted to examine the effects of plastic mulching (PM) on the photosynthetic rate, endogenous hormones and root yield of summer sweet potato [I. batatas L. cv. Jishu18 and Ayamuraski (Aya.)]. The results showed that the PM treatments decreased soil bulk density, increased soil porosity and soil available nutrient content, and retained soil water content at a relatively stable level, but no significant difference in soil temperature was observed compared with the control. The leaf chlorophyll content, photosynthetic rate, ribulose 1,5- bisphosphate carboxylase activity, leaf area index, soluble sugar content, and adenosine triphosphate content was higher in the PM treatments compared with the control. In addition, root gibberellic acid, zeatin riboside and abscisic acid content increased under PM treatment. The PM treatment improved the soil micro-environment of sweet potato, resulting in a higher storage root yield and top/root ratio (T/R). According to these results, it is concluded that mulching summer-sown sweet potato is an effective way to increase root yield in northern China, most likely through the modification of the soil micro-environment, photosynthetic capacity and endogenous hormones.

5

Production of eicosapentaenoic acid (EPA, 20:5n-3) in maize (Zea mays L.) through the alternative ∆8 desaturation pathway mediated by particle bombardment

63%

Wang C. , Yang X. , Ma H. , Liu J. , Chen J. , Zhang J. , Dong S. , Qi B. , Li X.

Acta Physiologiae Plantarum

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2017

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tom 39

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nr 05

6

A little membrane protein with 54 amino acids confers salt tolerance in rice (Oryza sativa L.)

63%

Chen Y. , Shao Q. , Li F. , Lv X. , Huang X. , Tang H. , Dong S. , Zhang H. , Huang J.

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tom 42

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nr 05

7

Prevalence of Cryptosporidium infection in the global population: a systematic review and meta-analysis

51%

Dong S. , Yang Y. , Wang Y. , Yang D. , Yang Y. , Shi Y. , Li C. , Li L. , Chen Y. , Jiang Q. , Zhou Y.

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nr 4