نتایج جستجو برای: farm equipment

تعداد نتایج: 113882  

2012
T. Dalgaard J. F. Bienkowski V. Magliulo J. E. Olesen

Introduction Conclusions References

2009
Xi Wang Chun Wang Weidong Zhuang Hui Yang

To meet the need of agriculture management modernization of Heilongjiang reclamation area, further boost large-scale integration level of modern agriculture production and boost management level of agriculture production.On Red Farm, we have established the digital management network information system with the remote sensor technology, GIS technology, GPS technology, database technology, netwo...

2015
John Deere

The paper discusses the problem of load transport using farm tractors and road tractor units. This type of carriage of goods is often done with farm vehicles. The tests were performed with the PEMS equipment (Portable Emission Measurement System) under actual traffic conditions. The vehicles carried a load of 20000 kg. This research method is one of the most desired because it provides reliable...

2017
Jiawei Li Jun Yao Xin Zeng Depeng Xu Caisheng Wang Frede Blaabjerg

This paper presents a coordinated control strategy for a hybrid wind farm with doubly-fed induction generator (DFIG)and direct-driven permanent-magnet synchronous generator (PMSG)-based wind turbines under symmetrical grid faults. The proposed low-voltage ride-through (LVRT) strategy is based on a novel current allocation principle and is implemented for individual DFIGor PMSG-based wind turbin...

2015
Xinyin Zhang Zaijun Wu Minqiang Hu Xianyun Li Frede Blaabjerg

The Voltage Source Converter-HVDC (VSC-HVDC) system applied to wind power generation can solve large scale wind farm grid-connection and long distance transmission problems. However, the low voltage ride through (LVRT) of the VSC-HVDC connected wind farm is a key technology issue that must be solved, and it is currently lacking an economic and effective solution. In this paper, a LVRT coordinat...

Journal: :Revista Argentina de microbiologia 2012
Ana I Molineri Marcelo L Signorini Alejandra L Cuatrín Vilma R Canavesio Verónica E Neder Norma B Russi Julio C Bonazza Luis F Calvinho

The objective of this work was to determine on-farm risk factors for psychrotrophic bacterial counts in bulk tank milk from dairy farms in Argentina. Raw milk samples from bulk tanks of 27 dairy farms were examined for total psychrotrophic counts (TPC), proteolytic psychrotrophic counts (PPC) and lipolytic psychrotrophic counts (LPC) (dependent or outcome variables). A survey recording infrastr...

2007
T. W. Downing

Manure application increases pasture crop production and minimizes manure storage costs. Excess N not absorbed by pasture vegetation can leach past the root zone and into ground water. A yearlong study was conducted on grazing pastures at 2 dairy farms to monitor potential nitrate (NO3) movement from the surface through the soil profile toward ground water. Precipitation, irrigation, manure app...

2009
Hui Yang Xi Wang Weidong Zhuang

In the process of China's agricultural modernization, especially agricultural machinery modernization, in terms of equipment, we've chose the way that foreign imports (and domestic research) with the combination of self-developed, in the software, it is difficult to fully apply this approach, the specific reasons are: the modernization of China's agriculture development model is diversified, it...

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