scholarly journals ACCEPTANCE TESTS OF THE S-7,2PM4 SEEDER

2021 ◽  
pp. 80-85
Author(s):  
М.А. Папшев ◽  
В.В. Шумаев ◽  
К.З. Кухмазов ◽  
А.Р. Губанова
Keyword(s):  
Current Issue ◽  
Economic Assessment ◽  
Test Methods ◽  
Federal State ◽  
Industrial Complex ◽  
Samara Oblast ◽  
Labour Costs ◽  
Resistance Form ◽  
Acceptance Tests

Материалы статьи посвящены актуальной теме – повышению качества посева семян зерновых культур. В ней отмечено, что известные конструкции лаповых и дисковых сошников имеют значительные тяговое сопротивление, образуют широкую борозду, которую затруднительно заделать, не обеспечивают качественное копирование рельефа поля. Всё это негативно сказывается на равномерности распределения семян зерновых культур, как по длине рядка, так и по глубине заделки. Наиболее перспективным направлением повышения качественных показателей работы посевного агрегата, является оснащение зерновых сеялок комбинированными сошниками. В статье приведено краткое описание и результаты приемочных испытаний зерновой сеялки С-7,2ПМ4 с новыми комбинированными однодисковыми сошниками, разработанными ФГБОУ ВО Пензенский ГАУ совместно с АО «Радиозавод» г. Пенза. Приемочные испытания проводились ФГБУ «Поволжская государственная зональная машиноиспытательная станция» (г. Кинель Самарской обл.) на полях ООО АПК «Комсомолец» Кинельского района Самарской области в соответствии с ГОСТ 31345-2017 «Техника сельскохозяйственная. Сеялки тракторные. Методы испытаний» [1-6]. При этом была проведена агротехническая, энергетическая, эксплуатационно – технологическая и экономическая оценка сеялки. В ходе приемочных испытаний было установлено, что комбинированные однодисковые сошники с копирующими колесами и сеялка С-7,2ПМ4 в целом надежно выполняет технологический процесс. При рабочей скорости агрегата 7,5-10,0 км/ч количество семян, заделанных на заданную глубину составляет 87,2-89,2 %, тяговое сопротивление находилось в пределах 9,45-9,47 кН, что соответствует тракторам тягового класса 1,4, затраты труда составляют 0,27 чел. ч/га, при этом совокупные затраты денежных средств при стоимости сеялки 1241,67 тыс. руб., составили 885,69 руб./га. The article is devoted to the current issue – improving the quality of planting seeds of grain crops. It is noted that the major designs of shovel and disc coulters have significant traction resistance, form a wide furrow, which is difficult to close, and do not provide high-quality following of the field relief. All this negatively affects the uniformity of the distribution of grain seeds, both along the length of the row and the depth of placement. The most promising direction for improving the quality indicators of the sowing unit is to equip grain planters with combined coulters. The article presents a brief description and results of acceptance tests of the S-7,2PM4 (С-7,2ПМ4) grain planter with new combined single-disc coulters developed by the Penza State Agrarian University in cooperation with JSC (AO) "Radiozavod", Penza. Acceptance tests were conducted by the Federal State Budgetary Institution "Volga MIS" (Kinel, Samara Oblast) in the fields of LLC Agro-Industrial Complex "Komsomolets" Kinelsky district of the Samara Oblast in accordance with GOST 31345-2017 "Agricultural machinery. Tractor seeders. Test methods" [1-6]. At the same time, an agrotechnical, energetic, operational, technological and economic assessment of the seeder was carried out. During acceptance tests, it was found that the combined single-disc coulters with gauge-wheels and the S-7,2PM4 (С-7,2ПМ4) seeder reliably perform the technological process. At the working speed of the unit - 7.5-10.0 km/h, the number of seeds covered at a given depth was 87.2-89.2 %, the traction resistance was within 9.45-9.47 kN. It corresponds to tractors of the traction class 1.4. Labour costs were 0.27 work h/ha, while the total cost of money at the price of the seeder - 1241.67 rubles, amounted to 885.69 rubles/ha.

An Analysis of Pronouns Used in Selected International Journal Articles: Exploring Authors’ Flexibility and Consistency

2019 ◽  
Vol 1 (3) ◽  
pp. 73-78
Author(s):  
Rumintang Harianja ◽  
Ratih Saltri Yudar ◽  
Susy Deliani ◽  
Mutia Sari Nursafira ◽  
Budianto Hamuddin
Keyword(s):  
Current Issue ◽  
Journal Article ◽  
Scientific Article ◽  
Journal Articles ◽  
The Impact

This study aims at identifying the pronouns used in journal articles in terms of numbers and familiarity. The data taken from three different journals from three various fields, i.e., Education, Medics and Engineering. It consists of  21 articles taken from the current issue 2018, where this study started. It is selected conveniently due to its unique and fame as a discipline and reputable sources. In collecting the data, the researcher accessed the journals published by science direct (Q1 Scopus indexed). The analysis showed that the writer in these three international journals commonly used several pronouns interchangeably. However, some articles in journal from Medical and Engineering consistently used only one chosen pronoun, which was recorded found at different sections in the journal article. The data then coded and transcribed to ease the analysis in this researcher. As a result of the study, it was found out that the data showed 19 kinds of pronouns in total were used in these three different fields. These results showed us that the pronoun usage in a scientific article from these three various fields varies with options of different pronouns.  The pronoun seems used to help the impact of imposition and showing politeness or quality of the articles. 

YEAR 2020: ON THE REMAINING REPRODUCTIVE THREATS AND THEIR NEUTRALIZATION ON THE WAYS TO IMPROVE STRATEGIC PLANNING AND INDUSTRIAL POLICY, THE DEPLOYMENT OF THE NATIONAL INNOVATION SYSTEM AND ITS SECTORAL AND REGIONAL SUBSYSTEMS

2020 ◽  
pp. 3-53
Author(s):  
Yu.B. Vinslav
Keyword(s):  
Strategic Planning ◽  
Industrial Policy ◽  
Innovation System ◽  
Poor Quality ◽  
National Innovation System ◽  
State Regulation ◽  
Industrial Complex ◽  
The Past ◽  
Technological Modernization

The article analyzes the main indicators of the evolution of the domestic economy and its industrial complex in the past year (in January — November 2019). It Identifies trends in this evolution, including negative trends that determine the preservation of reproductive threats in 2020: sluggishness, instability and low quality of economic growth. The main reasons for the fact that the objective resource capabilities of the macro level were clearly not used enough to effectively solve the urgent problems of technological modernization of the economy and increase people’s welfare are established. The main reason is the poor quality of public administration, including imperfect strategic planning and industrial policy; there is still no modern national innovation system in the country. Accordingly, recommendations for improving the quality of state regulation in its specified components are justified. The recommended measures, according to the author, will help the economy to move to a trajectory of rapid, sustainable and high-quality growth.

Assessment of bioenergy development potential in agricultural enterprises

2020 ◽  
pp. 165-171
Author(s):  
Iryna Hryhoruk
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Agricultural Waste ◽  
General Structure ◽  
Geographical Location ◽  
Economic Assessment ◽  
Energy Resources ◽  
Industrial Complex ◽  
Renewable Energy Resources ◽  
Energy Potential

Exhaustion of traditional energy resources, their uneven geographical location, and catastrophic changes in the environment necessitate the transition to renewable energy resources. Moreover, Ukraine's economy is critically dependent on energy exports, and in some cases, the dependence is not only economic but also political, which in itself poses a threat to national security. One of the ways to solve this problem is the large-scale introduction and use of renewable energy resources, bioenergy in particular. The article summarizes and offers methods for assessing the energy potential of agriculture. In our country, a significant amount of biomass is produced every year, which remains unused. A significant part is disposed of due to incineration, which significantly harms the environment and does not allow earning additional funds. It is investigated that the bioenergy potential of agriculture depends on the geographical distribution and varies in each region of Ukraine. Studies have shown that as of 2019 the smallest share in the total amount of conventional fuel that can be obtained from agricultural waste and products suitable for energy production accounts for Zakarpattya region - 172.5 thousand tons. (0.5% of the total) and Chernivtsi region - 291.3 thousand tons. (0.9%). Poltava region has the greatest potential - 2652.2 thousand tons. (7.8%) and Vinnytsia - 2623.7 thousand tons. (7.7%). It should be noted that the use of the energy potential of biomass in Ukraine can be called unsatisfactory. The share of biomass in the provision of primary energy consumption is very small. For bioenergy to occupy its niche in the general structure of the agro-industrial complex, it is necessary to develop mechanisms for its stimulation. In addition, an effective strategy for the development of the bioenergy sector of agriculture is needed. The article considers the general energy potential of agriculture, its indicative structure. The analysis is also made in terms of areas. In addition, an economic assessment of the possible use of existing potential is identified.

ISSUES OF TOXICOLOGY IN THE UNDERGRADUATE TRAINING OF PHARMACEUTICAL PROFILE SPECIALISTS

2017 ◽  
pp. 8-16 ◽  
Author(s):  
O. Yu. Strelova ◽  
E. N. Stepanova ◽  
A. N. Grebenyuk
Keyword(s):  
Educational Process ◽  
Federal State ◽  
Teaching Staff ◽  
Basic Training ◽  
Undergraduate Training ◽  
Educational Standard ◽  
School Time ◽  
State Chemical ◽  
State Educational

The need for basic training in toxicology of students of pharmaceutical universities and departments of toxicology is justified. The experience of teaching toxicology and medical protection to students of the St. Petersburg State Chemical Pharmaceutical Academy was analyzed. Academic teaching staff were trained in the methodology of teaching toxicology, and a participated in the preparation of the all-Russian textbook «Toxicology and Medical Protection» (2016) and three tutorials for students of medical and pharmaceutical universities. It is shown that in accordance with the current Federal State Educational Standard of the third generation, toxicology issues are included in the curriculum of a complex discipline «Life Safety. Emergency Medicine» as a stand-alone module. Students study toxicology in the fifth year having received a good basic training in medical, biological, and professional disciplines in previous years. For realization of cognitive and creative activity of students in the educational process, modern educational technologies are used which make it possible to improve the quality of teaching and to use school time more efficiently. The potential of using algorithmic workbooks, interactive forms of training, test control, case-method for facilitating the perception of theoretical knowledge and improving the quality of practical skills development is demonstrated. Results of the anonymous questionnaire survey, in which 153 of 198 students who studied toxicology and medical protection in the autumn semester of the 2017/2018 academic year participated, are reported. It was shown that more than 80% of the students surveyed are convinced of the need to study toxicology during the undergraduate training of specialists of pharmaceutical profile and positively assessed the methodology of teaching toxicology that is performed at the St. Petersburg State Chemical Pharmaceutical Academy.

Animal Models and Alternatives in the Quality Control of Vaccines: Are In Vitro Methods or In Vivo Methods the Scientific Equivalent of the Emperor's New Clothes?

1995 ◽  
Vol 23 (1) ◽  
pp. 61-73
Author(s):  
Coenraad Hendriksen ◽  
Johan van der Gun
Keyword(s):  
Quality Control ◽  
Test Methods ◽  
In Vitro Test ◽  
Large Numbers ◽  
Alternative Approach ◽  
Inactivated Vaccines ◽  
Vitro Test

In the quality control of vaccine batches, the potency testing of inactivated vaccines is one of the areas requiring very large numbers of animals, which usually suffer significant distress as a result of the experimental procedures employed. This article deals with the potency testing of diphtheria and tetanus toxoids, two vaccines which are used extensively throughout the world. The relevance of the potency test prescribed by the European Pharmacopoeia monographs is questioned. The validity of the potency test as a model for the human response, the ability of the test to be standardised, and the relevance of the test in relation to the quality of the product are discussed. It is concluded that the potency test has only limited predictive value for the antitoxin responses to be expected in recipients of these toxoids. An alternative approach for estimating the potency of toxoid batches is discussed, in which a distinction is made between estimation of the immunogenic potency of the first few batches obtained from a seed lot and monitoring the consistency of the quality of subsequent batches. The use of animals is limited to the first few batches. Monitoring the consistency of the quality of subsequent batches is based on in vitro test methods. Factors which hamper the introduction and acceptance of the alternative approach are considered. Finally, proposals are made for replacement, reduction and/or refinement (the Three Rs) in the use of animals in the routine potency testing of toxoids.

scholarly journals Comparison of Two Intergranular Corrosion Tests on EN AW-6016 Sheet Material

2021 ◽  
Vol 11 (11) ◽  
pp. 5294
Author(s):  
Peer Decker ◽  
Ines Zerbin ◽  
Luisa Marzoli ◽  
Marcel Rosefort
Keyword(s):  
Optical Microscopy ◽  
Intergranular Corrosion ◽  
Sheet Material ◽  
Test Methods ◽  
Standard Test ◽  
Corrosion Depth ◽  
Corrosion Tests ◽  
Automotive Company ◽  
Test Parameters

Two different intergranular corrosion tests were performed on EN AW-6016 sheet material, an ISO 11846:1995-based test with varying solution amounts and acid concentrations, and a standard test of an automotive company (PV1113, VW-Audi). The average intergranular corrosion depth was determined via optical microscopy. The differences in the intergranular corrosion depths were then discussed with regard to the applicability and quality of the two different test methods. The influence of varying test parameters for ISO 11846:1995 was discussed as well. The determined IGC depths were found to be strongly dependent on the testing parameters, which will therefore have a pronounced influence on the determined IGC susceptibility of a material. In general, ISO 11846:1995 tests resulted in a significantly lower corrosion speed, and the corrosive attack was found to be primarily along grain boundaries.

Reliability Performance of 1200 V and 1700 V 4H-SiC DMOSFETs for Next Generation Power Conversion Applications

2014 ◽  
Vol 778-780 ◽  
pp. 967-970 ◽  
Author(s):  
Donald A. Gajewski ◽  
Sei Hyung Ryu ◽  
Mrinal Das ◽  
Brett Hull ◽  
Jonathan Young ◽  
...  
Keyword(s):  
Wide Bandgap ◽  
Large Sample Size ◽  
Next Generation ◽  
Process Technology ◽  
Power Switching ◽  
Comprehensive Reliability ◽  
Reliability Performance ◽  
Acceptance Tests ◽  
Frequency Power

We present new reliability results on the Cree, Inc., 4H-SiC, DMOSFET devices. The Cree DMOSFETs were developed to meet the demand of next-generation, high-frequency power switching applications, such as: dc-ac inversion, dc-dc conversion, and ac-dc rectification, with continually improving energy efficiency. The Cree Generation 2 DMOSFET process technology is now commercially available with 1200 V and 1700 V ratings. We have performed intrinsic reliability studies to ensure excellent wear-out performance and long field lifetime of the products. We have also performed large sample size qualification reliability acceptance tests to ensure the quality of the manufacturing and packaging processes. These comprehensive reliability studies establish new benchmarks for wide bandgap transistors and demonstrate that Crees MOSFETs meet or exceed all industrial reliability requirements. This achievement facilitates broad market adoption of this disruptive power switch technology.

Analysis of the Test Method of Quartz Glass Optical Homogeneity

2017 ◽  
Vol 726 ◽  
pp. 414-418
Author(s):  
Bo Fu ◽  
Hui Wang ◽  
Zhu Feng Shao
Keyword(s):  
Quartz Glass ◽  
Measurement Accuracy ◽  
Test Methods ◽  
Test Method ◽  
Wavefront Aberration ◽  
Optical Homogeneity ◽  
Advantages And Disadvantages ◽  
Interference Measurement ◽  
Optical Quartz Glass

The optical quartz glass is widely applied in optical system , photo communications，inertial navigation，etc.It must have high optical homogeneity. Optical homogeneity of the optical quartz glass directly affects the wavefront quality of the optical transmission system, and changes the wavefront aberration of the system. How to accurately determine the optical homogeneity of the quartz glass is especially important. Currently，the method of test for optical homogeneity mainly used by interference principle. This paper analyzes various existing interference measurement method and test equipment. Summarized the advantages and disadvantages of various test methods，using range and measurement accuracy.

Improving the efficiency and quality of carrying out certification in the agrarian and industrial complex sphere

2021 ◽  
pp. 3-7
Author(s):  
V. A. Kazakova ◽  
V. A. Shinkevich ◽  
A. V. Dunayev
Keyword(s):  
International Standards ◽  
Industrial Complex ◽  
Complex Sphere

One of key problems of improvement of system of standardization is the greatest possible application of the international (regional) standards for implementation (confirmation) of compliance of production, services to the established requirements. In this regard harmonization with the international standards of three interstate standards directed on increase of efficiency and quality of carrying out certification of works (services) in the agrarian and industrial complex sphere is carried out: GOST "Diesels tractor and kombaynovy. Delivery in repair and release from repair. Specifications"; GOST "Tractors agricultural. Delivery in repair and release from repair. Specifications"; GOST "Combines self-propelled grain-harvesting and their assembly units. Delivery in repair and release from repair. Specifications".

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