scholarly journals «New dispersion formula and results of its application»

2021 ◽  
Author(s):  
Andrey Chernov
Keyword(s):  
Energy Density ◽  
Dispersion Formula ◽  
Wide Range ◽  
Universal Category ◽  
Relativistic Formula ◽  
Conducting Research ◽  
Speed Of Propagation ◽  
New Formula ◽  
Electron Clouds ◽  
Physical Formula

Abstract The aim of the study was to obtain a new physical formula for determining the refractive indices of light as a function of wavelength, which can be applied to a wide range of transparent substances. In the process of research on the basis of Einstein's relativistic formula, such a dispersion formula was obtained. Comparison of the obtained indicators with laboratory indicators showed the high accuracy of the new dispersion formula, which was ±10 -7-10 -5 in the calculated wavelength ranges of more than 100 nm. The new dispersion formula is obtained on the basis of the mathematical dependence of the speed of propagation of photons in a transparent substance on the energy density of electron clouds of atoms of the substance. Energy is a universal category, therefore, it is possible to apply the basic version of the new formula (where instead of the wavelength there is the energy density of electron clouds) when conducting research in all areas of light generation, manipulation and detection. And, finally, the very fact of applying the adapted relativistic Einstein's formula to physical processes occurring at the atomic level allows us to look at the nature of the interaction of light and matter from a new angle.

New dispersion formula and results of its application

2021 ◽  
Author(s):  
Andrey Chernov
Keyword(s):  
Energy Density ◽  
Dispersion Formula ◽  
Wide Range ◽  
Universal Category ◽  
Relativistic Formula ◽  
Conducting Research ◽  
Speed Of Propagation ◽  
New Formula ◽  
Electron Clouds ◽  
Physical Formula

Abstract The aim of the study was to obtain a new physical formula for determining the refractive indices of light as a function of wavelength, which can be applied to a wide range of transparent substances. In the process of research on the basis of Einstein's relativistic formula, such a dispersion formula was obtained. Comparison of the obtained indicators with laboratory indicators showed the high accuracy of the new dispersion formula, which was ±10 -7 − 10 -5 in the calculated wavelength ranges of more than 100 nm.The new dispersion formula is obtained on the basis of the mathematical dependence of the speed of propagation of photons in a transparent substance on the energy density of electron clouds of atoms of the substance. Energy is a universal category, therefore, it is possible to apply the basic version of the new formula (where instead of the wavelength there is the energy density of electron clouds) when conducting research in all areas of light generation, manipulation and detection.And, finally, the very fact of applying the adapted relativistic Einstein's formula to physical processes occurring at the atomic level allows us to look at the nature of the interaction of light and matter from a new angle.

scholarly journals Obtaining the relativistic formula for the refraction of light and the practice of its application

2021 ◽  
Author(s):  
Andrey Chernov
Keyword(s):  
High Accuracy ◽  
Atomic Level ◽  
Scientific Study ◽  
Refractive Indices ◽  
Dispersion Formula ◽  
Relativistic Formula ◽  
Speed Of Propagation ◽  
Electron Clouds ◽  
Physical Formula

Abstract The aim of this scientific study was to obtain a new physical formula for determining the refractive indices of light as a function of wavelength, which can be applied to the widest range of transparent substances. This study was based on the hypothesis of the dependence of the speed of propagation of photons inside matter on the density of electron clouds of atoms of matter. In the course of research on the basis of Einstein's relativistic formula, this dispersion formula was obtained. The new physical formula was used to calculate 26 refractive indices of light in 5 transparent substances in three states of aggregation. Comparison of the obtained indicators with laboratory indicators showed the high accuracy of the new dispersion formula, which amounted to T10 -7h10 -5 in the calculated wavelength ranges of more than 100 nm. The successful application of the relativistic formula to processes occurring at the atomic level allows us to look at the nature of the interaction of light and matter from a new angle.

scholarly journals Obtaining the relativistic formula for the refraction of light and the practice of its application

2021 ◽  
Author(s):  
Andrey Chernov
Keyword(s):  
High Accuracy ◽  
Atomic Level ◽  
Scientific Study ◽  
Refractive Indices ◽  
Dispersion Formula ◽  
Relativistic Formula ◽  
Speed Of Propagation ◽  
Electron Clouds ◽  
Physical Formula

Abstract The aim of this scientific study was to obtain a new physical formula for determining the refractive indices of light as a function of wavelength, which can be applied to the widest range of transparent substances. This study was based on the hypothesis of the dependence of the speed of propagation of photons inside matter on the density of electron clouds of atoms of matter. In the course of research on the basis of Einstein's relativistic formula, this dispersion formula was obtained. The new physical formula was used to calculate 26 refractive indices of light in 5 transparent substances in three states of aggregation. Comparison of the obtained indicators with laboratory indicators showed the high accuracy of the new dispersion formula, which amounted to T10 -7h10 -5 in the calculated wavelength ranges of more than 100 nm. The successful application of the relativistic formula to processes occurring at the atomic level allows us to look at the nature of the interaction of light and matter from a new angle.

ORGANIZATION OF ROAD TRAFFIC TAKING INTO ACCOUNT ELECTRIC ROUTE PASSENGER TRANSPORT

2021 ◽  
Vol 2 (65) ◽  
pp. 66-77
Author(s):  
Denis V. Kapsky ◽  
◽  
Sergey S. Semchenkov ◽  
Evgeny N. Kot ◽  
◽  
...  
Keyword(s):  
Traffic Management ◽  
Road Traffic ◽  
Rapid Development ◽  
Living Environment ◽  
Transport Sector ◽  
Passenger Transport ◽  
Wide Range ◽  
Practical Development ◽  
The Republic ◽  
Conducting Research

The rapid development of the transport sector leads not only to positive changes in the life of cities and towns, to an increase in convenience and comfort for residents, but also worsens the ecology and their living environment. The “profitable-safe” dilemma can be solved by the approach of environmentally oriented selection of the type of route passenger transport and decisionmaking in favor of electric route passenger transport. The article discusses the types of such transport on the example of the experience of their use in the Republic of Belarus. The classification and systematization developed by the authors are presented with subsequent recommendations for its application. On the basis of the results of the authors’ research, the issues of interaction of rail and non-rail route vehicles with an electric drive with the organization of road traffic are separately considered. The presented materials can be useful to a wide range of readers, as well as to specialists conducting research and practical development in the field of electrically powered route vehicles and traffic management.

SHELL DEFORMATION AND SPIN EFFECTS IN NUCLEON SEPARATION ENERGIES

1993 ◽  
Vol 02 (04) ◽  
pp. 789-807
Author(s):  
D. CALEB CHANTHI RAJ ◽  
M. RAJASEKARAN ◽  
R. PREMANAND
Keyword(s):  
Structural Changes ◽  
Shell Correction ◽  
Separation Energy ◽  
Systematic Analysis ◽  
Spin Effects ◽  
Wide Range ◽  
Type Calculation ◽  
Nucleon Separation Energy ◽  
New Formula ◽  
Good Agreement

A new formula to obtain shell correction to separation energy is derived from a Strutinsky type calculation. A systematic analysis of shell and deformation effects on nucleon separation energy is made. Spin induced structural changes are also evident in shape changes along the spin coordinate. Calculations are performed for a wide range of nuclei from Zr to Cm. The results are generally in very good agreement with experimental analysis.

scholarly journals “Through the Looking Glass”: The Emotional Journey of the Volunteer Ethnographer when Researching Sensitive Topics with Vulnerable Populations

2019 ◽  
Author(s):  
Fábio Augusto ◽  
Ana Hilário
Keyword(s):  
Vulnerable Populations ◽  
Participant Observation ◽  
Dual Role ◽  
Observation Study ◽  
Emotional Challenges ◽  
Sensitive Topics ◽  
Wide Range ◽  
Conducting Research ◽  
Reflective Strategies ◽  
Looking Glass

This paper extends further research on being both a volunteer and ethnographic researcher and intends to offer some insights on the emotional challenges of adopting this dual role when conducting research on sensitive topics and with vulnerable populations. The discussion presented here draws upon an ethnographic participant observation study of a food redistribution organization (Re-food) held in Lisbon, the capital of Portugal. The paper builds awareness on the emotional challenges in the field and discusses potential self-reflective strategies for researchers to cope with the extraordinary demands posed on them by specific circumstances and subjects. The volunteer ethnographer, when developing their work, is subject to a wide range of emotional challenges that are related to the functions that they had to develop in the research context itself due to their dual role, as well as to the vulnerability of participants and the sensitivity of the topic addressed.

scholarly journals Large Negative Photoresistivity in Amorphous NdNiO3 Film

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1411
Author(s):  
Alexandr Stupakov ◽  
Tomas Kocourek ◽  
Natalia Nepomniashchaia ◽  
Marina Tyunina ◽  
Alexandr Dejneka
Keyword(s):  
Energy Density ◽  
Optical Absorption ◽  
Power Density ◽  
Room Temperature ◽  
Amorphous Film ◽  
Amorphous Films ◽  
Metal Insulator ◽  
Wide Range ◽  
Potential Applications

A significant decrease in resistivity by 55% under blue lighting with ~0.4 J·mm−2 energy density is demonstrated in amorphous film of metal-insulator NdNiO3 at room temperature. This large negative photoresistivity contrasts with a small positive photoresistivity of 8% in epitaxial NdNiO3 film under the same illumination conditions. The magnitude of the photoresistivity rises with the increasing power density or decreasing wavelength of light. By combining the analysis of the observed photoresistive effect with optical absorption and the resistivity of the films as a function of temperature, it is shown that photo-stimulated heating determines the photoresistivity in both types of films. Because amorphous films can be easily grown on a wide range of substrates, the demonstrated large photo(thermo)resistivity in such films is attractive for potential applications, e.g., thermal photodetectors and thermistors.

The influence of the seasons: how the agricultural calendar impacts farmer perceptions of cover crops

2021 ◽  
pp. 1-11
Author(s):  
Margaret Beetstra ◽  
Robyn Wilson ◽  
Eric Toman
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Conservation Practice ◽  
Individual Level ◽  
Practice Adoption ◽  
Wide Range ◽  
Research Findings ◽  
Time Of Year ◽  
Conducting Research ◽  
Conservation Practice Adoption

Abstract Across the Midwest, substantial funding and personnel time have been allocated to encourage farmers to adopt a wide range of conservation practices but adoption rates for many of these practices remain low. Prior research focuses largely on the influence of individual-level factors (e.g., beliefs, attitudes) on conservation practice adoption rather than on contextual factors (e.g., seasons) that might also play a role. In the present study, we considered seasonal variation and its potential influence on farmer cover crop decision-making. We first established how farmer temporal and financial resources fluctuate across the year and then compared the annual agricultural decision and cover crop decision calendars. We also considered farmer cover crop perceptions and likely behaviors. To study this, we surveyed the same Midwestern farmers in the spring, summer and winter within a 12-month period. Results indicated that farmers were generally the least busy and the most financially comfortable in the winter months. Moreover, farmers perceived the benefits of cover crops differently throughout the year. These results indicate that seasonality can be a confounding factor which should be considered when designing and conducting research and farmer engagement. As researchers, it is our responsibility to understand the specific calendar experienced by our sample and how that may influence responses so we can examine theory-supported factors of interest rather than seasonality as a driver of farmer responses. As practitioners, it is important to use research findings to engage with farmers about conservation in a way that prioritizes communicating about the most salient aspects of the practice at the time of year when farmers will be most receptive.

Statistical significance across multiple optimization models for community partition

2016 ◽  
Vol 30 (13) ◽  
pp. 1650187 ◽  
Author(s):  
Ju Li ◽  
Hui-Jia Li ◽  
He-Jin Mao ◽  
Junhua Chen
Keyword(s):  
Community Structure ◽  
Statistical Significance ◽  
Detailed Comparison ◽  
Optimization Methods ◽  
Network System ◽  
Significance Analysis ◽  
Statistical Framework ◽  
Wide Range ◽  
Effectiveness And Efficiency ◽  
New Formula

The study of community structure is an important problem in a wide range of applications, which can help us understand the real network system deeply. However, due to the existence of random factors and error edges in real networks, how to measure the significance of community structure efficiently is a crucial question. In this paper, we present a novel statistical framework computing the significance of community structure across multiple optimization methods. Different from the universal approaches, we calculate the similarity between a given node and its leader and employ the distribution of link tightness to derive the significance score, instead of a direct comparison to a randomized model. Based on the distribution of community tightness, a new “[Formula: see text]-value” form significance measure is proposed for community structure analysis. Specially, the well-known approaches and their corresponding quality functions are unified to a novel general formulation, which facilitates in providing a detailed comparison across them. To determine the position of leaders and their corresponding followers, an efficient algorithm is proposed based on the spectral theory. Finally, we apply the significance analysis to some famous benchmark networks and the good performance verified the effectiveness and efficiency of our framework.

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