نتایج جستجو برای: winter cutting at 10
تعداد نتایج: 4308575 فیلتر نتایج به سال:
[1] Northern Europe was influenced by consecutive episodes of extreme winter weather at the start and end of the 2010 calendar year. A tripole pattern in North Atlantic sea surface temperature anomalies (SSTAs), associated with an exceptionally negative phase of the North Atlantic Oscillation (NAO), characterized both winter periods. This pattern was largely absent at the surface during the 201...
Standing tree pruning in fast-growing forests is an essential part of the targeted nurturing quality forests. Because high risk and low efficiency traditional methods, a climbing robot was developed, its design optimized, related experimental research carried out. This paper describes scheme Monkeybot mechanical structure control system theoretically analyzes clamping mechanism, walking cutting...
Fresh water samples at three sites in Nile River (NR1, NR2 and NR3) and two sites in Esmailia canal (E1 and E2) in Egypt were collected. Concentrations of soluble and particulate phases of polycyclic aromatic hydrocarbons (PAHs) and nitrated derivatives (NPAHs) were determined by using HPLC with florescence detection and HPLC with chemilumnecence detection, respectively. The total average conce...
The simulation of nanometric cutting of copper with diamond cutting tools, with the Molecular Dynamics method is considered. A 2D model of orthogonal nano-scale cutting is presented and the influence of the depth of cut and tool rake angle on chip morphology and cutting forces is investigated. For the analysis, three different depths of cut, namely 10Å, 15Å and 20 Å and four tool rake angles, n...
Previous population dynamics data, generated for Amblyomma parvum Aragão and Amblyomma cajennense (Fabricius) in Argentina and southeastern Brazil, have indicated that these ticks complete 1 generation per year, with larvae predominating in autumn, nymphs in winter, and mostly adults during spring and summer. The present study reports population dynamics data for free-living Amblyomma spp. tick...
molecular experiment was conducted to confirm resistant to aryloxyphenoxypropionate herbicides in winter wild oat (avena ludoviciana duriu.) populations of wheat fields in khuzestan province, at faculty of agriculture of ferdowsi university, during year of 2006. first, 44 wild oat populations from ahvaz, andimeshk, shush, shushtar, ramhormoz, susangerd, and dezful cities with a susceptible popu...
Background and purpose: Toxicity, high levels and complex nature of petroleum hydrocarbons in drill cutting can endanger human health since many of these compounds are among carcinogenic hazardous waste components. This study aimed at comparing the effect of compost and vermincompost processes in removing petroleum hydrocarbons from drill cutting located in Ahvaz oil field with sewage sludge. ...
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