Harvesting, mechanical

The use of peat as litter was studied in Finland in the 1930s and 40s. Today, peat is harvested mechanically by means of a milling cutter, which creates fine particle peat. Cowsheds have also changed with respect to the use of peat with the mechanisation of manure removal. At the same time workers are now demanding better working... 

For these studies cells must be harvested mechanically, e.g. by scraping with a rubber policeman or by the use of chemicals (e.g. alkali, acid or detergent) which lead to instantaneous death of the cells from which various products may then be isolated. 

Peanuts. When the kernels are fully developed and taking on a mature color, the plants are dug mechanically, shaken to remove the soil, and inverted into windrows to dry (cure) and mature completely. Ideally, the peanuts are left to cure for several days until the moisture content drops to ca 10%. They are harvested mechanically. Green harvesting is practiced under adverse weather conditions, yielding peanuts with 18—25% moisture artificial drying reduces the moisture to ca 10%. After the moisture is equilibrated between the kernels and hulls, the former contain 7—8% moisture, which is safe for storage. 

During the past few years, a concerted effort has been made to develop a machine which will pick tobacco leaves. Prototypes quickly evolved into commercial machines which during the course of a single day can pick eight acres of tobacco. A conventional hand-picking operation would require six people walking the same area to do the same job. Despite the fact that a machine will cost 16,000 and have a life expectancy of 10 years, it is now projected that any farmer with more than 30-40 acres of tobacco will harvest mechanically because of the price and more importantly, the lack of farm labor. 

Sea comes from the berry s ability to thrive in sandy soils and salty air near seas of its native lands in Asia and Europe buck is a reference to a botanical family of more than one hundred buckthorn shrub and tree species and thorn is for the long, sharp thorns all along the branches of the shrub—which make the seaberry difficult to harvest mechanically. 

So far, we have talked about the citric acid cycle only as an energy-harvesting mechanism. We have seen that dietary carbohydrates and amino acids enter the pathway at various stages and are oxidized to generate NADH and FADH2, which, by means of oxidative phosphorylation, are used to make ATP. 

The triplet-harvesting mechanism was confirmed by efficiency analysis of the BIY device spectra. A blue fluorescent (BE) device was constructed similarly to the BIY except that the phosphorescent emitter was omitted. The blue portion of the spectrum (380-512 nm) of the BE device exhibits 4.9% EQE, indicating very efficient fluorescence. Figure 14.52 shows that devices B Y and BE have nearly identical spectral radiance for the blue component of the electroluminescence. Thus, fluorescence remained the same while the addition of the phosphorescent dopant to the BE device resulted in the appearance... 

Safflower oil is the seed oil of the thistle-like safflower plant, thriving in the west of the USA, Mexico, North Africa and India. The plant can be grown under fairly arid conditions. The seeds resemble small sunflower seed kernels and can be harvested mechanically. Like corn oil the fatty acid composition is similar to that of sunflower oil. Safflower oil has a high oxidative stability and is being used increasingly in salad oils and dietetic margarines because of its high content of linoleic acid. 

In this section a proof of proposed concept of using IPMCs for energy harvesting applications is presented. Also an IPMC sensor model is formulated for better understanding of the energy harvesting mechanisms [Tiwari et al. (2008)]. 

There are numerous varieties of sunflower which are identifiable in part on the basis of height but also on the basis of oil composition, i.e. linoleic acid-rich and oleic acid-rich. The flower heads are harvested mechanically, ideally when the moisture content has dropped to approximately 9-10%. Mechanical drying is frequently necessary. Yields of 1300-2000 kg/ha are obtained. Oil content of seed 20-32% old strains, 40% new strains. 

Pereimial weeds should, wherever possible, be controlled in the previous year. Leeks compete weakly with weeds. Too marty weeds can reduce yields and cause difficulty at harvest, particularly when harvesting mechanically. Mechanical or hand weeding may be required where sites are badly affected with weeds. 

The effects of factors like package characteristics, gas concentrations, and so on on the MA vary with the type of commodity and have been extensively reported. However, the parameters as the plant species, variety, cultural practices, maturity level at harvest, harvesting mechanism, tissue type, and postharvest handling, and so on, also affect the response of the stored produce to the modified atmosphere, whieh are difficult to define. 

This is applied when fruits and other plant parts are not to be destroyed during harvesting, such as for multiple harvesting (mechanical picking of fruits and vegetables, or for ->cotton or cuphea seed). The use of all parts of a plant is called ->whole crop harvesting. 

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