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Effect of Different Fertilizers on Functional Diversity of Microbial Flora in Rhizospheric Soil Under Tobacco Monoculture
Abstract Continuous cropping obstacle is one the most important problems in tobacco (Nicotiana tabacum L.) production. To alleviate continuous cropping obstacle based on management of soil ecology,Expand
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Influence of some ions on biocontrol system of soybean cyst nematode
In laboratory test, influence of 6 ions (Mo 6+ ,B 3+ ,Zn 2+ ,Cu 2+ ,Mn 2+ and Fe 2+ ) on hatching of eggs of SCN, germination of seed and growth of germ roots of soybean, and hyphal growth of theExpand
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Coronavirus disease 2019 (COVID-19) pandemic: how countries should build more resilient health systems for preparedness and response
Objective : A resilient health system plays a crucial role in pandemic preparedness and response. Although the World Health Organization (WHO) has required all states parties to strengthen coreExpand
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A Temperature Prediction Model of T-type Inverter Module Based on Multi-Physics Coupling
A new accurate internal temperature prediction model of T-type inverter module is proposed, considering the electro-thermal coupling effect and the correction of the boundary conditions in the finiteExpand
Nutrients , Enzyme Activities , and Microbial Communities of Major Soils used for Tobacco Production in Yunnan , China
There are three major soil types used for tobacco production in Yunnan Province, which produces around 20% of all fluecured tobacco in the world. To apply sound agronomic management, and to maintainExpand
The Modular Multilevel Converter Based Multi-Terminal DC Transformer with Controllable Power Flow
The modular multilevel converter (MMC) based dc-dc converter has been proposed for multi-terminal dc grids. Expand
Soil quality and microbiology in response to fertilizations in a paddy-upland rotation with multiple crops and frequent tillage
Abstract Both short- and long-term effects of fertilizers on crops and soils are often studied only in arid or paddy soils, whereas less is known about the long-term effects in paddy-uplandExpand
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An Isolated Bipolar Modular Multilevel DC-DC Converter with Bidirectional Power Flow
This paper proposes a trapezoidal current working mode of modular multilevel DC-DC converter (MMDC) with bidirectional power flow capability, which is attractive for the interface requirement of future High Voltage Direct Current networks. Expand
Trapezoidal Voltage Mode for Bidirectional Modular Multilevel DC-DC Converter
This paper proposes a trapezoidal voltage mode for bidirectional modular multilevel DC-DC converter (MMDC), which combines the benefits of modular multilesvel converter (MMC, RMMC) and dual active bridge (DAB). Expand
State fragility and the coronavirus disease 2019 (COVID-19) pandemic: an ecologic analysis of data from 146 countries
Background : Global spread and impact of the coronavirus disease 2019 (COVID-19) pandemic are determined to a large extent, by resistance to the pandemic and public response of all countries inExpand