scholarly journals Dynamic synthesis of jogging process of sheets in a stack on the joggers

2019 ◽  
Vol 16 ◽  
pp. 85-95
Author(s):  
V. Pasika ◽  
R. Kazmirovich ◽  
O. Kazmirovich ◽  
O. Goncharuk

The article conducted analysis of factors affecting the quality and productivity of the formation of sheets in a stack on the joggers and the dynamic synthesis of the jogging process. The purpose of the work is determination of such parameters of jogging perturbation and the angle of inclination of the vibrate table, at which the alignment will take within the shortest time. The jogging process, which contains the running start and run out, is the considered in detail. The hypothesis has pulled out and confirmed that under jogging conditions there may be conditions under which a stack of sheets will be in the state of "free-body". It`s represented, that moving of the stack is possible only when the table is tilted and vibrated, the acceleration amplitude of which will be not less than the acceleration of the Earth's gravity. The time of stay of the table is in the state of "free body" determined depending on the angle of inclination, frequency and amplitude of the vibration table. The following graphs it is possible to estimate time of alignment of sheets in a stack of from the angle and vibration parameters.

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
K. M. SINGH ◽  
AMALENDU KUMAR

Pulses are nature’s precious gift to mankind as it supplementsnutritional (protein) requirements ofhumans, feed to cattle, and nitrogen to the soil. Pulses are extensively grown world over and India ranks second in pulses production. State of Bihar contributes about 2.35 percent of area and 3.06 percent of production of the country, which is about 7-8 percent of the gross cropped area in the state. The productivity of pulses in Bihar ranged between 819 kg/ha in 2000-01 to 897 kg/ha in 2013-14. Pulses aremostly grown under rainfed conditions, on marginal lands,with poor level of input use which has resulted in low productivity and production. The study examines the trends of pulses production and consumption in Bihar. Findings reveal that an increase of 54.68 percent of production in triennium ending 2001-03 to 2012-14. The per capita availability of pulses is still 600 gram to 700 gram per capita per month which is very low compared to recommended levels. The study suggests various measures for improvement of pulses production as well as consumption level in the state through serious efforts by different stake holders who are involved in production, marketing and price determination of pulses.


Author(s):  
Т.В. Никитина ◽  
А.А. Кашеварова ◽  
М.М. Гридина ◽  
А.А. Хабарова ◽  
А.Г. Мензоров ◽  
...  

Митотическая нестабильность кольцевых хромосом может приводить к появлению клеточных клонов с различной генетической структурой. В качестве модели нестабильности кольцевых хромосом в митозе мы использовали фибробласты от пациентов с r(8), r(13), r(18) и r(22) и полученные из них индуцированные плюрипотентные стволовые клетки (ИПСК). Линии ИПСК с r(22) имели относительно стабильный кариотип на протяжении десятков (до 60) пассажей и сохраняли неизменную структуру кольцевой хромосомы. Кариотип линий ИПСК с r(8) и r(18) на ранних пассажах стабильный, планируется его изучение на поздних пассажах. Наибольшее разнообразие кариотипа выявлено в линиях ИПСК с r(13), в которых наблюдали различные перестройки и выраженную клеточную гетерогенность. Определение факторов, влияющих на митотическую стабильность кольцевых хромосом, может иметь значение для консультирования пациентов. Mitotic instability of ring chromosomes can lead to the appearance of cell clones with different genetic structure. IPSCs from fibroblasts of patients with r(8), r(13), r(18), and r(22) were used as a model of ring chromosomes mitotic behavior. Karyotypes of iPSC lines with r(8) and r(18) have so far been evaluated only in the early passages, lines with r(22) have maintained a relatively stable karyotype up to 60 passages. The occurrence of rearrangements and cellular heterogeneity was found characteristic for r(13) iPSCs. The determination of factors affecting the ring chromosomes mitotic stability would be beneficial for the patient’s prognosis.


2020 ◽  
Vol 22 (1) ◽  
pp. 26-32
Author(s):  
ALIKHAN М. BAIMENOV ◽  

The article emphasizes that modern governments, working in unique socio-economic, historical and cultural conditions, must take into account global trends, as well as the growth of citizens’ expectations associated with the rapid development of information technologies and other factors. In such circumstances, special attention is paid to the effectiveness of public administration. The article discusses some of the significant factors impacting the effectiveness of public administration, such as the professionalization of the state apparatus, the legibility of the institutional framework, the optimization of information flows and corporate culture. In accordance with this, on the basis of work experience in the public administration system and analysis of civil service reforms in the countries of the region, the main challenges and possible solutions are shown. In the professionalization of the state apparatus, the importance of the merit principles in the selection and promotion stages of personnel through the empowerment of human resource (HR) management services, the integrity of tools and approaches at all stages of selection process, and the responsibility of the selection board are noted. The author focuses on the need to ensure a balance of powers, responsibility and resources, delimitation of powers between political and administrative civil servants, optimization of information flows. Particular importance is paid to corporate culture, which is one of the main factors affecting the efficiency of the state apparatus. It is noted that central values of corporate culture and leadership in state bodies of the countries of our region, along with generally accepted in the modern leadership theory, should be respect for the dignity, work and time of employees.


1992 ◽  
Vol 57 (8) ◽  
pp. 1632-1638 ◽  
Author(s):  
Věra Tatarkovičová ◽  
Zdeněk Stránský

The procedure for the determination of carbamate pesticides in soil was optimized. The following factors affecting the final results were investigated: extracting solvent, extraction procedure, extract purification procedure, and soil type. Triple extraction with acetone and purification of the extract on a two-stage purification column containing an activated carbon-silica gel 1+1 mixture were found optimal. The extracts after treatment were analyzed by RP-HPLC with UV detection. The method developed allows carbamate pesticides in soil to be determined at concentrations in excess of 30 μg kg-1.


2021 ◽  
Vol 22 (2) ◽  
pp. 348-363
Author(s):  
Damian Boniface Sambuo ◽  
Stephen Kirama ◽  
Kitala Malamsha

Determination of fish landing price is important, as the same contributes to the structure, conduct and performance of the fish market in Lake Victoria. Determination of relevant landing price is a gap to console between fishermen, agents (middlemen), processors and the government. The main objective of this study was therefore to examine fish price determination. Specifically, to examine the methods for fish price determination and analyse factors that affect fish landing price in Lake Victoria, a cross-sectional design was employed, and 300 respondents were randomly selected from two district councils, namely, Sengerema and Buchosa. Both qualitative and quantitative data were analysed using descriptive statistics and inferential analysis. Findings show that landing price is determined through formal negotiation with processors, consultation with other traders, informal negotiation with buyers and Beach Management Unit (BMU). The study concluded that these are the common methods used to determine landing prices. Also, distance from fishing to onshore landing centres, market information channels, age and experiences of the fishermen are the factors significantly found affecting landing price. It is recommended that the mechanism for setting up fishery price, fish market structure, fishery information and the formation of fishery regulatory body needs fishery policy and sector reforms that mark the determination of fish landing price.


2020 ◽  
Vol 9 (1) ◽  
pp. 170-181 ◽  
Author(s):  
Shangyong Zhang ◽  
Ruipeng Zhong ◽  
Ruoyu Hong ◽  
David Hui

AbstractThe surface activity of carbon black (CB) is an important factor affecting the reinforcement of rubber. The quantitative determination of the surface activity (surface free energy) of CB is of great significance. A simplified formula is obtained to determine the free energy of CB surface through theoretical analysis and mathematical derivation. The surface free energy for four kinds of industrial CBs were measured by inverse gas chromatography, and the influential factors were studied. The results showed that the aging time of the chromatographic column plays an important role in accurate measurement of the surface free energy of CB, in comparison with the influences from the inlet pressure and carrier gas flow rate of the chromatographic column filled with CB. Several kinds of industrial CB were treated at high temperature, and the surface free energy of CB had a significant increase. With the increase of surface free energy, the maximum torque was decreased significantly, the elongation at break tended to increase, the heat generation of vulcanizates was increased, and the wear resistance was decreased.


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