scholarly journals Method of effective spraying plants with drop charge of fertilizer solution by ionized air

2018 ◽  
Author(s):  
Sergey Antonov ◽  
Gennady Nikitenko ◽  
Andrey Adoshev ◽  
Sergey Dorozhko ◽  
Igor Devederkin
Keyword(s):  
Spraying Plants ◽  
Ionized Air ◽  
Drop Charge ◽  
Fertilizer Solution

Boltzmann and Master Equations for MHD in Weakly Ionized Air Plasmas

2008 ◽  
Author(s):  
Gianpiero Colonna ◽  
mario Capitelli ◽  
Lucia Daniela Pietanza ◽  
Annarita Casavola
Keyword(s):  
Master Equations ◽  
Air Plasmas ◽  
Weakly Ionized ◽  
Ionized Air

Collisions between liquid drops

1978 ◽  
Vol 287 (1349) ◽  
pp. 635-675 ◽  
Keyword(s):  
Simple Model ◽  
Impact Parameter ◽  
Water Drop ◽  
Free Fall ◽  
Electrostatic Energy ◽  
Good Effect ◽  
Frequency Distributions ◽  
Input Parameters ◽  
The Impact ◽  
Drop Charge

An experiment is described in which pairs of water drops of different size were caused to collide during free fall at a velocity equal to the difference of their terminal velocities in still air. The collision parameters of trajectory, drop size, and drop charge were controlled with precision, and impacts of a particular kind could be reproduced indefinitely. By using synchronized flash photography, well in excess of 30000 measurements were taken from more than 10000 frames of film of the resulting behaviour of the water-drop pairs. Data are discussed in terms of an impact parameter, X which defines the relative trajectory of the drops in the centre-of-mass frame, and three energy parameters e C , e R and e T which delineate the properties electrostatic energy, rotational energy, and total energy of the two-drop system before impact. Input parameters were confined to values appropriate to natural rainfall. After collision four basic types of rotation occurred, the particular kind of rotation depending upon X , e C , e R and e T . Measured rates of rotation were compared with that to be expected from a simple model of inelastic collision between solid spheres and showed a marked resemblance. Distributions of mass after collision were compared with a model based upon a bimodal Gaussian distribution to good effect. In addition, frequency distributions of the number of drop products resulting from a given collision were prepared showing the controlling influence of the impact parameter, X , and the effect of varying drop charge. Relations were also established between statistical values for the coalescence efficiency of a given drop pair and the input parameters; however, while all results were consistent and reproducible, the effect of drop charge could not be demonstrated by a simple model.

scholarly journals Fertilizer ‘solution’ could turn local problem global

Nature ◽  
2004 ◽  
Vol 427 (6974) ◽  
pp. 485-485 ◽  
Author(s):  
David S. Reay
Keyword(s):  
Local Problem ◽  
Fertilizer Solution

The Application of Artificially Ionized Air

Science ◽  
1935 ◽  
Vol 81 (2109) ◽  
pp. 536-537
Author(s):  
Alexis L. Romanoff
Keyword(s):  
Ionized Air

Alpha Radioactivity Monitor Using Ionized Air Transportation for Large Size Uranium Waste: Part 1—Large Measurement Chamber and Evaluation of Detection Performance

2010 ◽  
Author(s):  
Susumu Naito ◽  
Shuji Yamamoto ◽  
Mikio Izumi ◽  
Yosuke Hirata ◽  
Yukio Yoshimura ◽  
...  
Keyword(s):  
Maximum Size ◽  
Air Transportation ◽  
Detection Performance ◽  
Practical Applications ◽  
Large Size ◽  
Large Measurement ◽  
Alpha Radioactivity ◽  
Clearance Level ◽  
Ionized Air ◽  
Measurement Chamber

We present an ionized air transportation type alpha radioactivity monitor to efficiently perform the clearance level inspection for large size uranium waste and its detection performance. In previous work, we developed a prototype monitor with an about 1000 mm cubic measurement chamber to measure the cut waste. However, in a survey of target waste, we found that it is desired to measure not only the cut waste but also the lengthy waste such as uncut cylinders. Therefore, we developed an alpha radioactivity monitor with a long and large measurement chamber (effective sizes: 500 mm x900 mm x3200 mm) for long and large cylindrically-shaped waste (maximum size: 300 mm in diameter and 3000 mm in length, weight: 10 to 200 kg). We aimed <1000 Bq as the target value of Alpha radioactivity Detection Limit (ADL), which is one-tenth of the clearance level (1 Bq/g) for 10 kg waste. The issue to size up the measurement chamber was to suppress the reduction in sensitivity of alpha radioactivity. To overcome this, we enhanced an air fan power and optimized an ion sensor design. Using this monitor, we measured and evaluated ADLs for several cases supposing the practical applications (long cylinders with a smooth surface, bump, or concavity and convexity, and pipes with several small diameters). The resulting ALD ranged from 60 Bq to 120 Bq and sufficiently satisfied the target ALD (<1000 Bq). In conclusion, this monitor has sufficient performance for the clearance level inspection for large uranium waste.

scholarly journals CALCULATION OF FIELD CAPACITY AND FUEL CONSUMPTION OF MOBILE MACHINERY WITH BUNKERS, TANKS OR OTHER CONTAINERS FOR AGRICULTURAL GOODS

2021 ◽  
pp. 19-28
Author(s):  
Chavdar Vezirov ◽  
Atanas Atanasov ◽  
Nicolae-Valentin Vladut
Keyword(s):  
Fuel Consumption ◽  
North American ◽  
Field Capacity ◽  
Automatic Calculation ◽  
East European ◽  
Needed Information ◽  
Mobile Machinery ◽  
Fertilizer Solution

A method and procedure for automatic calculation of field capacity and fuel consumption of mobile machinery with tanks, hoppers and bunkers is suggested. They are based on a combination of two well-founded approaches: East-European and North-American. To increase its calculation area some applications for machines with containers as grain, fertilizer, solution, etc. are added. An example of five linked field operations, namely potato transportation, fertilization, spraying, planting and harvesting is presented. A list of needed information with relations between them and main indices of agricultural aggregates is prepared. For convenience and objectivity calculations are automated with spreadsheets.

scholarly journals Use of factors of photoperiod duration and growth regulators to increase the yield of mixoploid plants in C0 generation in meadow clover (Trifolium pratense L.)

2021 ◽  
Vol 901 (1) ◽  
pp. 012024
Author(s):  
M Yu Novoselov ◽  
L V Drobysheva ◽  
O A Starshinova
Keyword(s):  
Apical Dominance ◽  
High Efficiency ◽  
Trifolium Pratense ◽  
Morphological Changes ◽  
Continuous Illumination ◽  
Experimental Plant ◽  
Trifolium Pratense L ◽  
Naphthylacetic Acid ◽  
Spraying Plants ◽  
Selection Of

Abstract It has been established that the studied mode of cultivation of meadow clover under controlled environmental conditions, with continuous illumination with an intensity of 18-20 thousand lux and a constant temperature of + 25 °C, causes significant morphological changes in meadow clover. Compared with the optimal (control), the proposed growing regime halves the development time of plants and by the same amount reduces the severity of morphological traits, while simultaneously causing apical dominance in 54% of plants. Spraying plants with phytohormone in the form of naphthylacetic acid in all studied concentrations reduced the growing season by 4-8 days and increased pollen fertility by 8-10%. The optimal concentration of naphthylacetic acid (NLA) was revealed to suppress the growth of secondary meristems in meadow clover under the conditions of an experimental plant growing regime. The most significant effect on the manifestation of apical dominance was shown by the use of naphthylacetic acid at a concentration of 0.001%. The combined use of the proposed growing regime and treatment with naphthylacetic acid at a concentration of 0.001% increased the yield of plants with apical dominance from 54.5% to 76%. The developed method has shown high efficiency for the creation of tetraploid forms of meadow clover. When growing clover C0 generation and selection of mixoploid plants, the yield of mixoploids increased 5.4 times, the survival rate of seedlings increased by 21%, the time to obtain one generation and the selection of mixoploids decreased by 58%.

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