scholarly journals Continued Monitoring and Modeling of Xingfeng Solid Waste Landfill Settlement, China, Based on Multiplatform SAR Images

2021 ◽  
Vol 13 (16) ◽  
pp. 3286
Author(s):  
Yanan Du ◽  
Haiqiang Fu ◽  
Lin Liu ◽  
Guangcai Feng ◽  
Debao Wen ◽  
...  
Keyword(s):  
Deformation Gradient ◽  
Phase Unwrapping ◽  
Hyperbolic Function ◽  
Sar Images ◽  
Safety Assurance ◽  
Initial Stage ◽  
Temporal Decorrelation ◽  
Land Redevelopment ◽  
The Relationship ◽  
Considerable Deformation

Continued settlement monitoring and modeling of landfills are critical for land redevelopment and safety assurance. This paper adopts a MTInSAR technique for time-series monitoring of the Xingfeng landfill (XFL) settlement. A major challenge is that the frequent and significant settlement in the initial stage after the closure of landfills can affect the coherence of interferograms, thus hindering the monitoring of settlement by MTInSAR. We analyzed the factors that can directly affect the temporal decorrelation of landfills and adopted a 3D phase unwrapping approach to correct the phase unwrapping errors caused by such deformation gradient. SAR images from four platforms, including 50 Sentinel-1A, 12 Radarsat-2, 4 ALOS-2, and 2 TerraSAR-X/TanDEM-X images, are collected to measure the settlement and thickness of the landfill. The settlement accuracy is evaluated by a cross-evaluation between Radarsat-2 and Sentinel-1A that have similar temporal coverages. We analyzed the spatial characteristics of settlement and the relationship between the settlement and thickness. Further, we modeled the future settlement of the XFL with a hyperbolic function model. The results showed that the coherence in the initial stage after closure of the XFL is primarily affected by temporal decorrelation caused by considerable deformation gradient compared with spatial decorrelation. Settlement occurs primarily in the forward slope of the XFL, and the maximum line-of-sight (LOS) settlement rate reached 0.808 m/year from August 2018 to May 2020. The correlation between the settlement and thickness is 0.62, indicating an obvious relationship between the two. In addition, the settlement of younger areas is usually greater than that of older areas.

INTERACTION BETWEEN A FAMILY DOCTOR AND A DENTIST AT AN EARLY STAGE IN THE PREVENTION OF DISEASES OF THE GASTROINTESTINAL TRACT

2021 ◽  
Vol 2 (12(81)) ◽  
pp. 39-43
Author(s):  
M. Ibragimov ◽  
Y. Heydarova ◽  
A. Alizade ◽  
L. Ibragimova
Keyword(s):  
Gastrointestinal Tract ◽  
Oral Cavity ◽  
Early Stage ◽  
Family Doctor ◽  
Scientific Article ◽  
Oral Manifestations ◽  
Family Doctors ◽  
Long Period ◽  
Initial Stage ◽  
The Relationship

This scientific article discusses the oral manifestations of diseases of the gastrointestinal tract. This problem is relevant both for dentists and family doctors. In medicine, for a long period of time, the relationship between diseases affecting the gastrointestinal tract and their symptoms manifested in the oral cavity has been considered. Many scientists and physicians have dealt with this problem, their several opinions are presented in this article. There is a hypothesis among researchers that the oral cavity is a mirror in which all human diseases can be visible. In the oral cavity, most of the alterations occurring in the organism are manifested, due to which, with an attentive attitude to oral manifestations, the disease can be detected already at the initial stage.

Prospects for Cooperation Between Russia and Syria in Various Scenarios of Military Conflict Development

2021 ◽  
pp. 50-55
Author(s):  
Alheder Haled
Keyword(s):  
Growth Rate ◽  
Inverse Correlation ◽  
Foreign Economic Policy ◽  
Military Conflict ◽  
Political Situation ◽  
Gdp Growth Rate ◽  
Initial Stage ◽  
Military Conflicts ◽  
The Military ◽  
The Relationship

The paper is devoted to determining the prospects for cooperation between Russia and the Syrian Arab Republic in various scenarios of military conflicts. In order to identify the relationship between the success of the country's foreign economic policy and the military conflicts waged on its territory, a study was conducted of such indicators of Syria as: the growth rate of the peace index and the GDP growth rate. A strong inverse correlation is revealed, which means that the level of political situation and peace in the state determines the efficiency of the economy. In view of this, various scenarios of the development of the military conflict in Syria have been studied: at the initial stage, at the stage of active hostilities, at the present stage of overcoming the crisis. The last stage involves four different scenarios for the development of a military conflict, including a local nature and a protracted nature with the involvement of other countries of the world. Options for developing cooperation between Russia and Syria have been identified for each scenario. Taking into account the assessment of the international political situation, the two most likely scenarios for further military events in Syria are identified, and the prospects for cooperation between Russia and Syria in these conditions are outlined.

scholarly journals Innovation and Entrepreneurship in a Space-time Framework Based on the Case of Poland

2019 ◽  
Vol 15 (2) ◽  
pp. 24-39
Author(s):  
Aleksandra Gaweł
Keyword(s):  
Research And Development ◽  
Explanatory Power ◽  
Regression Function ◽  
Regression Analyses ◽  
Initial Stage ◽  
Start Ups ◽  
The Relationship ◽  
Innovation Impact ◽  
Yearly Data ◽  
Innovation And Entrepreneurship

Although innovation and entrepreneurship have been subjects of researchers’ interests for years, nevertheless both the concepts and the relationships between them remain controversial. Since different indices are accepted for the measurement of these categories, the question is whether the relationship between them depends on the choice of measures. The aim of the paper is to indicate the innovation impact on the entrepreneurial process with regard to different measures of these concepts. The research was conducted with the use of regression analyses as a method and yearly data for Polish regions in the period 2003–2018. At the initial stage of the research as many measures of innovation and entrepreneurship as possible were introduced into the estimation of regression function parameters. Statistically insignificant variables were deleted at later stages of research. This research confirms that innovativeness and entrepreneurship are broad concepts and the relationship between them depends on the choice of measures. Saturation with enterprises and saturation with start-ups seem to be more sensitive to innovation than other measures of entrepreneurship. Innovation seen as input, measured by spending on research and development (R&D) has a bigger influence on entrepreneurship than the output innovation measured by revenues from innovative activities. Considering a relatively low level of explanatory power of innovations, it seems they are not the only factor influencing entrepreneurship.

scholarly journals The relationship between the effectiveness of performing technical elements and indicators of static and dynamic balance in young acrobats 6-7 years old

2021 ◽  
Vol 7 (4) ◽  
pp. 58-68
Author(s):  
T. Chernykh ◽  
V. Mulyk ◽  
K. Mulyk ◽  
А. Skaliy ◽  
А. Ostrowski ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Dynamic Equilibrium ◽  
Dynamic Balance ◽  
Rank Correlation ◽  
Young Athletes ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Initial Stage ◽  
Equilibrium Test ◽  
The Relationship

Purpose: to determine the relationship between the performance of basic elements and indicators of static and dynamic balance in the training process of young acrobats 6-7 years. Material and methods. The study involved 16 young acrobats at the stage of initial training (age 6-7 years). All parents of the participants gave written consent for the participation of children in the study. The study involved testing the technique of performing basic elements of sports acrobatics and assessing the static and dynamic balance of young athletes. The relationship between (swallow, shoulder blade, forward squat, wheel (sideways overturning), bridges) and static and dynamic equilibrium tests was determined. Spearman's rank correlation coefficient method was used as a method of statistical analysis. Results. It is established that the largest relationship between the performance of basic elements and static balance in the basic exercises of young acrobats have: Romberg's test with the elements "Swallow", "Stand on the shoulders", "Bridge"; Biryuk test with elements "Swallow", "Wheel", "Bridge"; balance "Swallow" with elements "Swallow", "Wheel"; static equilibrium test with the elements "Swallow", "Rack on the shoulders", "Rolling forward with a squat", "Wheel". Reliable values ​​of the correlation coefficient were established between the tests of dynamic balance and the basic elements of sports acrobatics in young athletes 6-7 years, namely: "Swallow", "Flip forward with a squat", "Wheel" and "Bridge". The analysis of special tests of static and dynamic balance in mastering the basic elements of acrobatics at the first stage of long-term training makes it possible to use them to determine the level of coordination capabilities of young athletes and further improve the use of acrobatic exercises. Conclusions. A reliable relationship between the performance of basic exercises and indicators of static and dynamic balance in young acrobats at the initial stage of training. It is shown that the level of static and dynamic balance is of great importance for the assimilation and improvement of basic elements of technology by young acrobats 6-7 years. Static and dynamic balance tests can be used to individually build training programs and young acrobats. It is shown that sports acrobatics is a significant means of developing the balance of children 6-7 years.

scholarly journals Estimation of three-dimensional crustal movements in the 2011 Tohoku-oki, Japan earthquake from TerraSAR-X intensity images

2014 ◽  
Vol 2 (12) ◽  
pp. 7383-7408
Author(s):  
W. Liu ◽  
F. Yamazaki ◽  
M. Matsuoka ◽  
T. Nonaka ◽  
T. Sasagawa
Keyword(s):  
Three Dimensional ◽  
Short Time Period ◽  
Sar Images ◽  
Crustal Movements ◽  
Surface Displacements ◽  
Time Period ◽  
Intensity Images ◽  
Short Time ◽  
The Relationship ◽  
Gps Observations

Abstract. The Tohoku-Oki earthquake on 11 March 2011 caused significant widespread crustal movements. In a previous study, we proposed a method for capturing two-dimensional (2-D) surface displacements from a pair of pre- and post-event TerraSAR-X (TSX) intensity images. However, it is difficult to detect three-dimensional (3-D) displacements from one pair of TSX images. In this study, three pairs of pre- and post-event TSX images taken on different paths were used to estimate 3-D crustal movements. The relationship between the actual 3-D displacements and the converted 2-D movements in the SAR images was derived based on the observation model of a SAR sensor. The 3-D movements were then calculated from three sets of detected 2-D movements that occurred within a short time period. Compared with GPS observations, the proposed method was found to be capable of detecting the 3-D crustal movements with sub-pixel accuracy.

scholarly journals The establishment of Irkutsk Fire-Technical School of the Ministry of Internal Affairs of USSR: historical-pedagogical retrospective

2020 ◽  
pp. 1-7
Author(s):  
Mikhail Aleksandrovich Vasil'ev
Keyword(s):  
Academic Staff ◽  
Educational Institution ◽  
Technical School ◽  
Staff Members ◽  
Formative Stage ◽  
Initial Stage ◽  
Internal Affairs ◽  
Relationship Of ◽  
The Relationship ◽  
Academic Personnel

The subject of this research is the process of establishment of Irkutsk Fire-Technical School during the 1960’s – 1970’s and its professional-pedagogical transformation in the later period of 1990’s. The article covers in the details the question of historical-pedagogical peculiarities in recruitment of the faculty staff of the school with academic personnel at the initial stage. The author explores the question of professional skills of the temporary and permanent academic staff in realization of training, marching drill and combat activities. In the course of this research the author determines and analyzes the factors that influenced the establishment and development Irkutsk Fire-Technical School of the Ministry of Internal Affairs of USSR during the 1960’s – 1970’; as well as peculiarities of pedagogical activity in the formative stage of the educational institution. The article examines the relationship of the cadets and staff members of the school with the service branches. The presented research is relevant for broad audience, since the establishment and development of departmental institution of system of the Ministry of Internal Affairs of USSR in the territory of Baikalia during the 1960’s became a milestone event for education system of the entire Siberian Region.

Resident loyalty formation for the survival of African-ethnic restaurants during COVID-19: the adaptive capabilities logic

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Samson Omuudu Otengei ◽  
George Changha
Keyword(s):  
Design Methodology ◽  
Sensory Quality ◽  
Dynamic Capabilities ◽  
Content Type ◽  
Safety Assurance ◽  
Body Of Knowledge ◽  
Adaptive Capabilities ◽  
Difficult Times ◽  
The Relationship ◽  
Practical Implications

PurposeThis qualitative research aimed to explore the relationship between adaptive dynamic capabilities and resident loyalty formation among African-ethnic restaurants (AERs) during COVID-19 in East Africa.Design/methodology/approachAnchored on the dynamic capabilities perspective, the study uses eight case studies to obtain data based on restaurant owner-managers' lived experiences.FindingsThe paper presents six factors: (1) sensory quality promise, (2) service personalization declaration, (3) openness of technology adoption, (4) healthy food and safety assurance, (5) authenticity pledge and (6) diversity provision as prerequisites for resident loyalty formation. The findings suggest adaptive capacity as an appropriate alternative for stimulating resident loyalty formation during difficult times.Practical implicationsThe findings help managers in formulating strategies that facilitate residents' display of willingness to revisit and/or recommend others. The local restaurants can now keep modifying and adjusting their practices and processes so as to exhibit the ability to handle customer unique demands during difficult times.Originality/valueThrough this work, a model of adaptive capabilities as enablers of resident loyalty formation is proposed, hence contributing the existing body of knowledge.

From Bulbous Bow to Free-Surface Shock Wave—Trends of 20 Years’ Research on Ship Waves at the Tokyo University Tank

1981 ◽  
Vol 25 (03) ◽  
pp. 147-180
Author(s):  
Takao Inui
Keyword(s):  
Shock Wave ◽  
Free Surface ◽  
Field Measurements ◽  
Wave Pattern ◽  
Ship Waves ◽  
Second Stage ◽  
Initial Stage ◽  
Man And Nature ◽  
Bulbous Bow ◽  
The Relationship

Trends of 20 years' research on ship waves at the Tokyo University Tank since 1960 are briefly sketched. Stress is focused on the importance of dialogues between man and nature. The process of these dialogues is exemplified by some typical cases, including the development of bulbous bows and the finding of free-surface shock waves. Wave-pattern pictures are shown to be indispensable for the initial stage of the di alogues, while wave contours and velocity-field measurements serve well in the second stage. The current wave analysis and wake survey may be the third. The relationship between "wavebreaking" and the "free-surface shock wave" is also discussed.

3D InSAR Phase Unwrapping Within the Compressive Sensing Framework

2019 ◽  
pp. 809-841
Author(s):  
Wajih Ben Abdallah ◽  
Riadh Abdelfattah
Keyword(s):  
Compressive Sensing ◽  
General Problem ◽  
Estimation Error ◽  
Curvelet Transform ◽  
Problem Formulation ◽  
Phase Unwrapping ◽  
Interferometric Synthetic Aperture Radar ◽  
Phase Volume ◽  
The Relationship ◽  
New Phase

This chapter presents a new phase unwrapping algorithm for the 3D Interferometric Synthetic Aperture Radar (3D InSAR) volumes. The proposed approach is based on the relationship between the gradient vectors of the observed wrapped phase and the true phase respectively, when the Itoh condition is satisfied. Since this relationship is violated by the residue pixels in the observed wrapped phase, a general problem formulation which takes into account the estimation error due to these residue values is proposed. This approach exploits the temporal inter correlation between the interferometric frames within a compressive sensing framework. The 3D discrete curvelet transform is used in order to ensure a suitable sparse representation of the phase volume. The performance of the proposed 3D phase unwrapping algorithm is tested on simulated and real SAR 3D datasets

3D InSAR Phase Unwrapping within the Compressive Sensing Framework

2017 ◽  
pp. 125-157
Author(s):  
Wajih Ben Abdallah ◽  
Riadh Abdelfattah
Keyword(s):  
Compressive Sensing ◽  
General Problem ◽  
Estimation Error ◽  
Curvelet Transform ◽  
Problem Formulation ◽  
Phase Unwrapping ◽  
Interferometric Synthetic Aperture Radar ◽  
Phase Volume ◽  
The Relationship ◽  
New Phase

This chapter presents a new phase unwrapping algorithm for the 3D Interferometric Synthetic Aperture Radar (3D InSAR) volumes. The proposed approach is based on the relationship between the gradient vectors of the observed wrapped phase and the true phase respectively, when the Itoh condition is satisfied. Since this relationship is violated by the residue pixels in the observed wrapped phase, a general problem formulation which takes into account the estimation error due to these residue values is proposed. This approach exploits the temporal inter correlation between the interferometric frames within a compressive sensing framework. The 3D discrete curvelet transform is used in order to ensure a suitable sparse representation of the phase volume. The performance of the proposed 3D phase unwrapping algorithm is tested on simulated and real SAR 3D datasets

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