The article describes the influence of tribological characteristics phenanthrene liquid crystalline substance (as an additive to hydraulic oils) on service life units technological machines (e. g. construction and track machines). It demonstrates that creates cholesteric lubricating films friction surfaces. have a high bearing capacity low in their layers, which significantly improves lubricity...

Highlights Three automatic boom height systems were compared: BoomTrac Pro (A), AutoBoom XRT (B), and UC5 Passive Roll (C). Boom leveling performance was quantified for three runs on each of terrains at least speeds. System B kept the significantly closer to target than Systems A C. had less variability Abstract . Automatic reduce agricultural sprayer height. Consistent is important key reasons...

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The overall goal of this research is to improve the design of assembly methods through the use of virtual reality (VR) and haptics (force feedback). The research is focused on two critical aspects: the development of methods for simulating natural part-topart interaction to support the human-centric approach to concurrent design and the evaluation of these methods in a manufacturing design cont...

Information technology is redefining national security and the use of force by state and nonstate actors. The use of force over the Internet warrants analysis given recent terrorist attacks. At the same time that information technology empowers states and their commercial enterprises, information technology makes infrastructures supported by computer systems increasingly accessible, interdepend...

Use of an Engine Cycle Simulation to Study a Biodiesel Fueled Engine. (August 2009) Junnian Zheng, B.A., Shanghai Jiaotong University Chair of Advisory Committee: Dr. Jerald A. Caton Based on the GT-Power software, an engine cycle simulation for a biodiesel fueled direct injection compression ignition engine was developed and used to study its performance and emission characteristics. The major...

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Many field experiments require the collection of forage yields in addition to grain yield (small grains). ln smal! plot research, mechanized grain harvest is common. However, forage harvest is often accomplished by hand which is time consuming and labor intensive. Sample heterogeneity increases when forage harvest is obtained by hand. The objectives of this study were to construct a mechanized ...

On 3 consecutive cuttings, alfalfa from a single field was mowed with a John Deere 946 mower-conditioner (4-m cut width; Moline, IL) to leave narrow swaths (NS) ranging from 1.2 to 1.52 m wide (30-37% of cutter bar width) and wide swaths (WS) ranging from 2.44 to 2.74 m wide (62-67% of cutter bar width). Samples were collected from windrows and dry matter (DM) was monitored during wilting until...