Determination of the most significant factors affecting the life of tires and gear motor-wheels using a priori ranking

A two-dimensional computer model is developed to determine the radiative heat flux distributions within the vapor formed above a metal target irradiated by a laser beam. An axisymmetric cylindrical enclosure containing a radiatively participating medium is considered. Scattering is assumed to be isotropic and allowances are made for variation of the radiative properties of the medium and boundaries. The P-1 and P-3 spherical harmonics approximations are used to solve the integro-differential radiative transfer equation. The resulting equations are then solved for the radial and axial heat fluxes using a finite-difference algorithm. The most significant factors affecting the results obtained from both the P-1 and P-3 approximations were the optical thickness of the medium and the type of laser profile incident upon the medium. Using different wall reflectivities and scattering albedos had a smaller effect. Changing the medium temperature had an insignificant effect as long as medium temperatures were below 20,000 K.

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The determinational manifestations of individual personality characteristics as factors that influence the motivation of educational activities of adolescents

KANT ◽

10.24923/2222-243x.2020-36.50 ◽

2020 ◽

Vol 36 (3) ◽

pp. 263-268

Author(s):

Anastasia Egorova ◽

Sergey Bobryshov

Keyword(s):

Educational Process ◽

Personality Characteristics ◽

Educational Activity ◽

Educational Activities ◽

Factors Affecting ◽

Individual Personality ◽

Gender Characteristics ◽

And Gender ◽

Significant Factors

The article is devoted to the problem of determination of the manifestation of a number of individual personality characteristics - the age of students, their temperament, gender, extroversion or introversion-in the aspect of their impact on the formation and expression of parameters of educational motives. The areas of motivational sphere of students in adolescence that are most affected by them are identified. The specific manifestations of these characteristics in schoolchildren as significant factors affecting the motivation of learning are revealed, it is shown how they determine the modality of procedural and content parameters of educational activity. It is proved that the teacher's choice of motives for educational activities to achieve the highest results in it should be based on the whole complex of General and specific age and gender characteristics of the student, key manifestations of his temperament, and attribution to the type of extroverts or introverts. It is argued that the construction of the educational process requires a unified approach to establishing and evaluating the nature of the expression of the presented factors in their inter-determination. Recommendations are given on the choice of ways to account for them, control them, and adapt them to the objective requirements of motivating educational activities.

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An Economic Approach to Abortion Demand

The American Economist ◽

10.1177/056943459203600109 ◽

1992 ◽

Vol 36 (1) ◽

pp. 53-64 ◽

Cited By ~ 11

Author(s):

Donna S. Rothstein

Keyword(s):

Cross Section ◽

Divorce Rate ◽

Single Women ◽

Economic Approach ◽

Factors Affecting ◽

Abortion Demand ◽

Regression Techniques ◽

Per Capita ◽

Significant Factors

This paper uses econometric multiple regression techniques in order to analyze the socioeconomic factors affecting the demand for abortion for the year 1985. A cross-section of the 50 states and Washington D.C. is examined and a household choice theoretical framework is utilized. The results suggest that average price of abortion, disposable personal per capita income, percentage of single women, whether abortions are state funded, unemployment rate, divorce rate, and if the state is located in the far West, are statistically significant factors in the determination of the demand for abortion.

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Modeling of dynamic mosaicism on ring chromosomes in human fibroblasts and IPSCS

Nauchno-prakticheskii zhurnal «Medicinskaia genetika» ◽

10.25557/2073-7998.2020.03.12-13 ◽

2020 ◽

pp. 12-13

Author(s):

Т.В. Никитина ◽

А.А. Кашеварова ◽

М.М. Гридина ◽

А.А. Хабарова ◽

А.Г. Мензоров ◽

...

Keyword(s):

Genetic Structure ◽

Human Fibroblasts ◽

Cellular Heterogeneity ◽

Mitotic Stability ◽

Factors Affecting ◽

Ring Chromosomes ◽

Cell Clones ◽

Mitotic Instability ◽

Mitotic Behavior

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.

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Simulation of non-stationary thermal fields from a buried thermally insulated pipeline and its diagnostics

Proceedings of the Mavlyutov Institute of Mechanics ◽

10.21662/uim2007.1.013 ◽

2007 ◽

Vol 5 ◽

pp. 127-132

Author(s):

N.A. Vaganova

Keyword(s):

Thermal Imaging ◽

Software Package ◽

Clay Soil ◽

Underground Pipeline ◽

Main Pipeline ◽

Factors Affecting ◽

Thermal Fields ◽

Thermal Imaging Equipment ◽

Principal Possibility ◽

Significant Factors

To detect damage to the underground pipeline, a mathematical model, allowing to take into account the most significant Factors affecting the distribution of temperature on the day surface. To implement this model, a software package has been developed and results of numerical calculations. With the help of these calculations, in particular, It is established that modern thermal imaging equipment has a principal possibility to determine an unauthorized frame in the main pipeline at a depth of two meters in clay soil.

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Examination of Conditions for the Determination of Carbamate Pesticides in Soils

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19921632 ◽

1992 ◽

Vol 57 (8) ◽

pp. 1632-1638 ◽

Cited By ~ 1

Author(s):

Věra Tatarkovičová ◽

Zdeněk Stránský

Keyword(s):

Activated Carbon ◽

Solvent Extraction ◽

Soil Type ◽

Extraction Procedure ◽

Purification Procedure ◽

Factors Affecting ◽

Carbamate Pesticides ◽

Rp Hplc ◽

Extracting Solvent

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.

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Strategies for a Circular Economy in the Construction and Demolition Sector: Identifying the Factors Affecting the Recommendation of Recycled Concrete

Sustainability ◽

10.3390/su13084113 ◽

2021 ◽

Vol 13 (8) ◽

pp. 4113

Author(s):

Valeria Superti ◽

Cynthia Houmani ◽

Ralph Hansmann ◽

Ivo Baur ◽

Claudia R. Binder

Keyword(s):

Circular Economy ◽

A Priori ◽

Recycled Concrete ◽

Recycled Aggregates ◽

Factors Affecting ◽

Structural Applications ◽

Adoption Of Innovation ◽

Decision Making Processes ◽

Behavioural Factors ◽

High Level

With increasing urbanisation, new approaches such as the Circular Economy (CE) are needed to reduce resource consumption. In Switzerland, Construction & Demolition (C&D) waste accounts for the largest portion of waste (84%). Beyond limiting the depletion of primary resources, implementing recycling strategies for C&D waste (such as using recycled aggregates to produce recycled concrete (RC)), can also decrease the amount of landfilled C&D waste. The use of RC still faces adoption barriers. In this research, we examined the factors driving the adoption of recycled products for a CE in the C&D sector by focusing on RC for structural applications. We developed a behavioural framework to understand the determinants of architects’ decisions to recommend RC. We collected and analysed survey data from 727 respondents. The analyses focused on architects’ a priori beliefs about RC, behavioural factors affecting their recommendations of RC, and project-specific contextual factors that might play a role in the recommendation of RC. Our results show that the factors that mainly facilitate the recommendation of RC by architects are: a senior position, a high level of RC knowledge and of the Minergie label, beliefs about the reduced environmental impact of RC, as well as favourable prescriptive social norms expressed by clients and other architects. We emphasise the importance of a holistic theoretical framework in approaching decision-making processes related to the adoption of innovation, and the importance of the agency of each involved actor for a transition towards a circular construction sector.

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The Level of Conus Medullaris in 629 Healthy Japanese Individuals

Journal of Clinical Medicine ◽

10.3390/jcm10143182 ◽

2021 ◽

Vol 10 (14) ◽

pp. 3182

Author(s):

Hiroaki Nakashima ◽

Keigo Ito ◽

Yoshito Katayama ◽

Mikito Tsushima ◽

Kei Ando ◽

...

Keyword(s):

Regression Analysis ◽

Magnetic Resonance ◽

Pelvic Tilt ◽

Pelvic Incidence ◽

Multivariate Regression Analysis ◽

Conus Medullaris ◽

Magnetic Resonance Images ◽

Factors Affecting ◽

Adult Volunteers ◽

Significant Factors

The conus medullaris typically terminates at the L1 level; however, variations in its level and the factors associated with the conus medullaris level are unclear. We investigated the level of conus medullaris on magnetic resonance imaging in healthy volunteers. In total, 629 healthy adult volunteers (≥50 individuals of each sex and in each decade of age from 20 to 70) were enrolled. The level of the conus medullaris was assessed based on the T2-weighted sagittal magnetic resonance images, and factors affecting its level were investigated employing multivariate regression analysis including the participants’ background and radiographical parameters. L1 was the most common conus medullaris level. Participant height was significantly shorter in the caudally placed conus medullaris (p = 0.013). With respect to the radiographical parameters, pelvic incidence (p = 0.003), and pelvic tilt (p = 0.03) were significantly smaller in participants with a caudally placed conus medullaris. Multiple regression analysis showed that the pelvic incidence (p < 0.0001) and height (p < 0.0001) were significant factors affecting the conus medullaris level. These results indicated that the length of the spinal cord varies little among individuals and that skeletal differences affect the level of the conus medullaris.

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Fish Price Determination Around Lake Victoria, Tanzania: Analysis of Factors Affecting Fish Landing Price

Global Business Review ◽

10.1177/0972150918811509 ◽

2021 ◽

Vol 22 (2) ◽

pp. 348-363

Author(s):

Damian Boniface Sambuo ◽

Stephen Kirama ◽

Kitala Malamsha

Keyword(s):

Lake Victoria ◽

Regulatory Body ◽

Price Determination ◽

Cross Sectional ◽

Factors Affecting ◽

Fish Market ◽

Fishery Policy ◽

The Government ◽

And Performance

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.

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On factors affecting surface free energy of carbon black for reinforcing rubber

Nanotechnology Reviews ◽

10.1515/ntrev-2020-0015 ◽

2020 ◽

Vol 9 (1) ◽

pp. 170-181 ◽

Cited By ~ 2

Author(s):

Shangyong Zhang ◽

Ruipeng Zhong ◽

Ruoyu Hong ◽

David Hui

Keyword(s):

Free Energy ◽

Carbon Black ◽

Surface Free Energy ◽

Surface Activity ◽

Gas Flow ◽

Influential Factors ◽

Chromatographic Column ◽

Factors Affecting ◽

Carrier Gas Flow

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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