scholarly journals Improvement of the soybean harvesting process as a way to increase the quality of seeds

2019 ◽  
pp. 71-75
Author(s):  
I. M. Prisyazhnaya ◽  
M. O. Snegovsky ◽  
S. P. Prisyazhnaya
Keyword(s):  
Biological Diversity ◽  
Soybean Seeds ◽  
High Quality ◽  
New Device ◽  
Operating Modes ◽  
Grain Moisture ◽  
Harvesting Process ◽  
High Degree ◽  
Grain Losses

The quality of seeds is the most important factor in increasing the yield of agricultural crops, including soybean. However, on the average, up to 2025% of soybean seeds, sown in the Amur re-gion, are substandard. At the same time, one of the main reasons for the decline in the quality of seed material is significant crushing and damage of soybean during harvesting and processing. Up to 10 different marks of combines, which allow a high degree of crushing of bunker grain, are used in harvesting soybean in the Amur region. The crushing of grain by combines of different marks varies in the range from 6,9 to 15,1 percent. Combines of Russian and foreign production are mainly single-drum by design and collect the threshed soybean grain in one bunker, while they do not separate seeds according to the biological diversity inherent in soybean. As a result, soybean yield losses reach 2,7-3,3 c/ha. In order to reduce grain losses from the crushing and obtaining high-quality seeds, a new device, based on a two-stage threshing combine with double-flow cleaning and with two bunkers, has been developed. The study of the operating modes of the threshing and separating device for threshing, separation and damage of soybean seeds along the length of the combine thresher was carried out in order to select and preserve the part of the biologically valuable and high-quality soybean seeds from the crushing during combine harvesting of soybean with reduced grain moisture (less than 12%). The conducted research with the use of the complete factorial experiment method and processing the results made it possible to create mathematical models of separation and seed damage, on the basis of which a nomogram was built to determine separation and the content of damaged soybean seeds, which are obtained in the zone of the first drum, depending on the techno-logical adjustments of the threshing apparatus, grain feed and grain moisture.

CHARACTERIZATION AND ELECTRICAL PROPERTIES OF ALIGNED CARBON NANOTUBES WITH HIGH ASPECT RATIO

2011 ◽  
Vol 10 (01n02) ◽  
pp. 23-28
Author(s):  
RAVI BHATIA ◽  
V. PRASAD ◽  
M. REGHU
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Multiwall Carbon Nanotubes ◽  
High Quality ◽  
Transmission Electron Microscopy Analysis ◽  
Transmission Electron ◽  
Electron Microscopy Analysis ◽  
High Degree

High-quality multiwall carbon nanotubes (MWNTs) were produced by a simple one-step technique. The production of MWNTs was based on thermal decomposition of the mixture of a liquid phase organic compound and ferrocene. High degree of alignment was noticed by scanning electron microscopy. The aspect ratio of as-synthesized MWNTs was quite high (more than 4500). Transmission electron microscopy analysis showed the presence of the catalytic iron nanorods at various lengths of MWNTs. Raman spectroscopy was used to know the quality of MWNTs. The ratio of intensity of the G-peak to the D-peak was very high which revealed high quality of MWNTs. Magnetotransport studies were carried out at low temperature and a negative MR was noticed.

scholarly journals Development of a Soybean Sowing Model Under Laboratory Conditions

2017 ◽  
Vol 65 (3) ◽  
pp. 957-962
Author(s):  
Jan Turan ◽  
Vladimir Višacki ◽  
Patrik Burg ◽  
Pavol Findura ◽  
Aleksandar Sedlar ◽  
...  
Keyword(s):  
Coefficient Of Variation ◽  
Agricultural Production ◽  
Quality Measurement ◽  
Travel Speed ◽  
Vacuum Pressure ◽  
Soybean Seeds ◽  
High Quality ◽  
Laboratory Conditions ◽  
Yield Formation

Sowing is affected by numerous factors, and thus high‑quality sowing is a very important task for agricultural engineers and managers of profitable agricultural production. The primary purpose of sowing is placing seeds at proper depths and in‑row spacings in well‑prepared soil. Plant population particularly gives prominence to sowing as it directly affects the uniformity of plant growth and development. Soybean planting is especially dependent on the quality of planting for yield formation due to the significant vicinity of seeds. Provided all external factors of high‑quality sowing are met, i.e. sowing conditions, the quality of sowing depends upon the planting mechanism. The following features of the planting mechanism are the most important: RPM of the seed disc, the travel speed of a seeder, and the values of gauge and vacuum pressure. This paper presents the results of sowing three different fractions of soybean seeds under laboratory conditions. The quality measurement of sowing was performed at different values of vacuum pressure and RPM of the seed disc. On balance, an increase in vacuum pressure results in improved sowing quality due to a stronger adherence of seeds to the seed disc. Lower values of vacuum pressure do not exert significant effects on the quality of sowing, regardless of the seed fraction. However, higher RPM of the seed disc entail an increase in the coefficient of variation. On the basis of the results obtained, a mathematical model for predicting changes in the coefficient of variation of sowing quality was developed using different operating parameters.

scholarly journals Iterative Subtractive Binning of Freshwater Chronoseries Metagenomes Identifies of over Four Hundred Novel Species and their Ecologic Preferences

2019 ◽  
Author(s):  
LM Rodriguez-R ◽  
D Tsementzi ◽  
C Luo ◽  
KT Konstantinidis
Keyword(s):  
Novel Species ◽  
Preference Score ◽  
Freshwater Ecosystems ◽  
Habitat Specialization ◽  
Sequencing Technology ◽  
High Quality ◽  
Sample Representation ◽  
High Degree ◽  
Lacustrine Ecosystem

AbstractRecent advances in sequencing technology and accompanying bioinformatic pipelines have allowed unprecedented access to the genomes of yet-uncultivated microorganisms from a wide array of natural and engineered environments. However, the catalogue of available genomes from uncultivated freshwater microbial populations remains limited, and most genome recovery attempts in freshwater ecosystems have only targeted few specific taxa. Here, we present a novel genome recovery pipeline, which incorporates iterative subtractive binning and apply it to a time series of metagenomic datasets from seven connected locations along the Chattahoochee River (Southeastern USA). Our set of Metagenome-Assembled Genomes (MAGs) represents over four hundred genomospecies yet to be named, which substantially increase the number of high-quality MAGs from freshwater lakes and represent about half of the total microbial community sampled. We propose names for two novel species that were represented by high-quality MAGs: “Candidatus Elulimicrobium humile” (“Ca. Elulimicrobiota” in the “Patescibacteria” group) and “Candidatus Aquidulcis frankliniae” (“Chloroflexi”). To evaluate the prevalence of these species in the chronoseries, we introduce novel approaches to estimate relative abundance and a habitat-preference score that control for uneven quality of the genomes and sample representation. Using these metrics, we demonstrate a high degree of habitat-specialization and endemicity for most genomospecies observed in the Chattahoochee lacustrine ecosystem, as well as wider species ecological ranges associated with smaller genomes and higher coding densities, indicating an overall advantage of smaller, more compact genomes for cosmopolitan distributions.

scholarly journals Application of a New Method of Collecting Oil and Petroleum Products to Improve the Quality of Spill Response

2021 ◽  
Vol 320 ◽  
pp. 02007
Author(s):  
Vitaly A. Onov
Keyword(s):  
Environmentally Friendly ◽  
Petroleum Products ◽  
Oil Products ◽  
New Method ◽  
Complete Elimination ◽  
High Quality ◽  
Low Degree ◽  
High Degree ◽  
Oil And Oil Products

The article substantiates a new method of localization and elimination of oil and oil products spills. This method is the most environmentally friendly of all existing ones, fast, high-quality, inexpensive, with a low degree of further spread of the spill and a high degree of complete elimination.

scholarly journals Prospects of the Malo-Chipiketsky quartz-bearing zone for quartz raw materials of high quality

Georesursy ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 99-106
Author(s):  
Liliya Kh. Galiakhmetova ◽  
Nina G. Bydtaeva ◽  
Alexander E. Nepryakhin
Keyword(s):  
High Efficiency ◽  
Raw Materials ◽  
Raw Material ◽  
Material Base ◽  
High Quality ◽  
Ore Formation ◽  
Research Results ◽  
Quartz Veins ◽  
High Degree

The article discusses the prospects of the Malo-Chipiketsky zone in the southern part of the Patomsky quartz-bearing region of the Baikal province, as a potentially probable new raw material base for granular and transparent quartz in the east of the country. The assessment of the area prospects was carried out according to the algorithm developed by FSUE TsNIIgeolerud for studying quartz objects, which includes a set of the most effective methods for assessing quartz raw materials, quartz concentrates and products from them. The research results showed high efficiency of the algorithm. The studies made it possible at the stage of prospecting to expressly, with a high degree of probability, sort out objects according to the quality of raw materials, identify ore-formation types of quartz and outline possible directions for the use of raw materials. The results were used in the selection and contouring of promising sections of quartz veins to assess the predicted resources of the selected ore-formation types of quartz.

scholarly journals Capital and Wealth Estimates

2020 ◽  
pp. 61-80
Author(s):  
Alex Cobham ◽  
Petr Janský
Keyword(s):  
Data Availability ◽  
Data Sources ◽  
Critical Survey ◽  
High Quality ◽  
Core Element ◽  
Financial Flows ◽  
Partial Data ◽  
Illicit Financial Flows ◽  
High Degree

Capital account-based estimates form an important part of the literature on the scale of illicit financial flows (IFF), along with related approaches to estimate the scale of wealth held offshore and undeclared for tax purposes. This chapter provides a critical survey of the leading estimates. It is clear that offshore wealth is both a significant element in IFF, and offers a valuable avenue to construct indicators of scale. At the same time, however, current estimates of this deliberately hidden quantum are characterised by a high degree of uncertainty, or are based on necessarily partial data sources. But the importance of the area and the relatively high quality of estimates, combined with reasons to expect improving data availability, suggest that offshore wealth should form a core element of IFF scale indicators.

Influence of technology parameters of free-cutting steel continuous casting on the billet internal structure

2020 ◽  
Vol 76 (2) ◽  
pp. 139-142
Author(s):  
A. T. Kunakbaeva ◽  
A. M. Stolyarov ◽  
M. V. Potapova
Keyword(s):  
Regression Analysis ◽  
Continuous Casting ◽  
Internal Structure ◽  
Sulfur Content ◽  
Manganese Content ◽  
High Quality ◽  
Correlation And Regression Analysis ◽  
Cutting Steel ◽  
Continuously Cast

Free-cutting steel gains specific working properties thanks to the high content of sulfur and phosphorus. These elements, especially sulfur, have a rather high tendency to segregation. Therefore, segregation defects in free-cutting steel continuously cast billets can be significantly developed. The aim of the work was to study the influence of the chemical composition of freecutting steel and casting technological parameters on the quality of the macrostructure of continuously cast billets. A metallographic assessment of the internal structure of cast metal made of free-cutting steel and data processing by application of correlation and regression analysis were the research methods. The array of production data of 43 heats of free-cutting steel of grade A12 was studied. Steel casting on a five-strand radial type continuous casting machine was carried out by various methods of metal pouring from tundish into the molds. Metal of 19 heats was poured with an open stream, and 24 heats – by a closed stream through submerged nozzles with a vertical hole. High-quality billets had a cross-sectional size of 150×150 mm. The macrostructure of high-quality square billets made of free-cutting steel of A12 grade is characterized by the presence of central porosity, axial segregation and peripheral point contamination, the degree of development of which was in the range from 1.5 to 2.0 points, segregation cracks and strips – about 1.0 points. In the course of casting with an open stream, almost all of these defects are more developed comparing with the casting by a closed stream. As a result of correlation and regression analysis, linear dependences of the development degree of segregation cracks and strips both axial and angular on the sulfur content in steel and on the ratio of manganese content to sulfur content were established. The degree of these defects development increases with growing of sulfur content in steel of A12 grade. These defects had especially strong development when sulfur content in steel was of more than 0.10%. To improve the quality of cast metal, it is necessary to have the ratio of the manganese content to the sulfur content in the metal more than eight.

Experience of clinical testing of personal telemedicine system ‘Obereg’ for remote monitoring of patients in intensive care units

2020 ◽  
pp. 52-58 ◽  
Author(s):  
A. A. Eryomenko ◽  
N. V. Rostunova ◽  
S. A. Budagyan ◽  
V. V. Stets
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Remote Monitoring ◽  
Clinical Testing ◽  
Transportation Of Patients ◽  
High Quality ◽  
Telemedicine System ◽  
Accuracy Of Measurements ◽  
Hospital Equipment

The experience of clinical testing of the personal telemedicine system ‘Obereg’ for remote monitoring of patients at the intensive care units of leading Russian clinics is described. The high quality of communication with the remote receiving devices of doctors, the accuracy of measurements, resistance to interference from various hospital equipment and the absence of its own impact on such equipment were confirmed. There are significant advantages compared to stationary patient monitors, in particular, for intra and out-of-hospital transportation of patients.

Productivity of corn hybrids of different fao groups depending on microfertilizers and growth stimulants under irrigation in the south of Ukraine

2016 ◽  
Vol 3 (1) ◽  
pp. 55-60
Author(s):  
Yu. Lavrynenko ◽  
R. Vozhegova ◽  
O. Hozh
Keyword(s):  
Grain Quality ◽  
Laboratory Method ◽  
The South ◽  
Corn Hybrids ◽  
Early Maturity ◽  
Effi Ciency ◽  
Grain Moisture ◽  
Grain Productivity ◽  
The Impact

The purpose of the research is to identify effi cient microfertilizers and growth stimulants considering biologi- cal features of new corn hybrids of different FAO groups under irrigation conditions in the South of Ukraine and trace their impact on grain productivity of the plants. The methods of the research are the fi eld method – to study the interaction of the research object with experimental factors of the natural environment, to register the yield and evaluate the biometrical indices; the laboratory method – to measure soil moisture, grain moisture content and grain quality indices; the statistical method – to evaluate the reliability of the obtained results; the calculation methods – for economic and energetic assessment of the growing techniques used. The results of the research. The paper defi nes the impact of microfertilizers and growth stimulants on the yield and grain quality of the corn hybrids of different maturity groups and on the economic effi ciency of growing them. The conclusions of the research. Under irrigation conditions of the Southern Steppe of Ukraine it is recommended that the following hybrids should be grown in dark-chestnut soils: early maturity DN Pyvykha, medium-early Skadovskyi, medium maturity Kakhovskyi and medium-late Arabat, using the growth stimulants – treating the seeds with Sezam-Nano and fertilizing with Grainactive at the stage of 7–8 leaves.

METHODOLOGICAL ASPECTS OF VISUALIZATION OF CORONARY ARTERIES WITH TRANSTHORACIC ECHOCARDIOGRAPHY

2018 ◽  
pp. 26-35
Author(s):  
Z. A. Agaeva ◽  
K. B. Baghdasaryan
Keyword(s):  
Blood Flow ◽  
Coronary Blood Flow ◽  
Coronary Arteries ◽  
Transthoracic Echocardiography ◽  
Second Harmonic ◽  
Anatomic Reconstruction ◽  
High Quality ◽  
Acoustic Window ◽  
Methodological Aspects

The transthoracic echocardiography made by multifrequency probes with support of the mode of the second harmonic imaging, is a competitive method for visualization of the main coronary arteries and allows to estimate coronary blood flow with high quality. Of course, the method has considerable restrictions, most important of which is the low spatial resolution of a method, due to small acoustic window. Because of this the transthoracic visualization of coronary arteries perhaps will not become the leading method of anatomic reconstruction of separately taken coronary artery and especially all coronary arteries system. However uniqueness and indisputable advantage of this method is an opportunity to noninvasively estimate a coronary blood flow both once, and in dynamics.

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