Practical research on quantitative calculation of debris flow magnitude and disaster intensity

2008 ◽  
Vol 57 (4) ◽  
pp. 863-871 ◽  
Author(s):  
Li-Hua Feng ◽  
Xiong Chen
Keyword(s):  
Debris Flow ◽  
Quantitative Calculation ◽  
Practical Research ◽  
Disaster Intensity

scholarly journals Quantitative expression on drought magnitude and disaster intensity

2005 ◽  
Vol 5 (4) ◽  
pp. 495-498 ◽  
Author(s):  
L. H. Feng ◽  
X. C. Zhang
Keyword(s):  
Earthquake Magnitude ◽  
New Method ◽  
Practical Significance ◽  
Quantitative Index ◽  
Quantitative Expression ◽  
Quantitative Calculation ◽  
Disaster Intensity

Abstract. According to the calculation of wind scale and earthquake magnitude, this paper puts forward the concept of drought magnitude and disaster intensity and lays out a new method by quantitative calculation. Drought magnitude is the quantitative index that describes the scale of a drought, and disaster intensity of drought is the quantitative index to describe the loss caused by a drought. Both indices have many theoretical and practical advantages with definable concepts and simple applications; therefore they are of important practical significance.

scholarly journals The quantitative estimation of the vulnerability of brick and concrete wall impacted by an experimental boulder

2016 ◽  
Vol 16 (2) ◽  
pp. 299-309 ◽  
Author(s):  
J. Zhang ◽  
Z. X. Guo ◽  
D. Wang ◽  
H. Qian
Keyword(s):  
Debris Flow ◽  
Debris Flows ◽  
Impact Force ◽  
Quantitative Estimation ◽  
Bending Moment ◽  
Concrete Wall ◽  
Intensity Index ◽  
Disaster Intensity ◽  
Impact Bending ◽  
Maximum Impact Force

Abstract. There is little historic data about the vulnerability of damaged elements due to debris flow events in China. Therefore, it is difficult to quantitatively estimate the vulnerable elements suffered by debris flows. This paper is devoted to the research of the vulnerability of brick and concrete walls impacted by debris flows. An experimental boulder (an iron sphere) was applied to be the substitute of debris flow since it can produce similar shape impulse load on elements as debris flow. Several walls made of brick and concrete were constructed in prototype dimensions to physically simulate the damaged structures in debris flows. The maximum impact force was measured, and the damage conditions of the elements (including cracks and displacements) were collected, described and compared. The failure criterion of brick and concrete wall was proposed with reference to the structure characteristics as well as the damage pattern caused by debris flows. The quantitative estimation of the vulnerability of brick and concrete wall was finally established based on fuzzy mathematics and the proposed failure criterion. Momentum, maximum impact force and maximum impact bending moment were compared to be the best candidate for disaster intensity index. The results show that the maximum impact bending moment seems to be most suitable for the disaster intensity index in establishing vulnerability curve and formula.

The main directions of scientific and practical research on the problem of occupational health maintaining (scientometric analysis data)

2020 ◽  
Vol 60 (11) ◽  
pp. 742-745
Author(s):  
Valerij E. Budaragin ◽  
Mariya A. Zakharova
Keyword(s):  
Information Technology ◽  
Occupational Medicine ◽  
Scientific Research ◽  
Analysis Data ◽  
Expert Assessment ◽  
Scientometric Analysis ◽  
Scientific Publications ◽  
Quantitative Calculation ◽  
Practical Research ◽  
National Congress

Introduction. In recent decades, to assess the importance of trends in the development of areas of scientific research, various means of expert assessment have been used using the latest developments in the field of information technology, in particular, computer systems for scientometric analysis. The aim of the study is to analyze the dynamics of the formation of scientific directions in occupational medicine. Materials and methods. A scientometric analysis of materials from publications of the largest domestic scientific and practical event - the Russian National Congress "OCCUPATION and HEALTH" was carried out. For the analysis, materials from three different Congresses were taken: the 1st (2002), the 8th (2009) and the 15th (2019), a total of 968 publications were analyzed. During the study, a quantitative calculation of publications was carried out, grouped by topic, keywords and annotations. The main areas of research on occupational medicine covered in publications were divided into 3 thematic groups, in which several subgroups were additionally identified. Results. As a result, the most significant areas of scientific research and the main interests of Russian scientists were identified. The authors additionally compared the topics of the oral reports of ICOH-2018 participants with scientific publications within the framework of the 15th Russian National Congress "OCCUPATION and HEALTH" 2019. Conclusion. In the course of the comparison, the main thematic areas of oral reports of ICOH-2018 participants, popular questions with the largest number of speeches were identified, and the most significant problems were identified, equally addressed by international and Russian specialists.

LACBED with Quantitative Anomalous Absorption Corrections

1990 ◽  
Vol 48 (2) ◽  
pp. 528-529
Author(s):  
C.J. Rossouw ◽  
L.J. Allen ◽  
P.R. Miller
Keyword(s):  
Momentum Transfer ◽  
Scattering Amplitude ◽  
Incident Beam ◽  
Waller Factor ◽  
Beam Momentum ◽  
Anomalous Absorption ◽  
Quantitative Calculation ◽  
Ewald Sphere ◽  
Image Position ◽  
Incident Beam Energy

An Einstein model for thermal diffuse scattering (TDS) has enabled quantitative calculation of the absorptive potential V'(r). This allows anomalous absorption to be accounted for in LACBED contrast. Fourier coefficients Vg-h of the absorptive component from each atom α are calculated from integrals of the formwhere fα is the scattering amplitude and M(Q) the Debye-Waller factor. Integration over the Ewald sphere (dΩ) requires the momentum transfer q to have values up to 2ko (the incident beam momentum). Dynamical ‘dechannelling’ is accounted for by the terms g ≠ h. The crystal absorptive potential is obtained by coherently summing over these atomic absorptive potentials within the unit cell. Unlike the elastic potential, the absorptive potential is a strong function of incident beam energy Eo, since the range of momentum transfer q and associated solid angles dΩ change with the Ewald sphere radius.Fig. 1 shows a LACBED pattern of the zeroth order beam from Si aligned along a <001> zone axis.

Practical Research: Help! I've Been Asked to Coach a Robotics Team

Science Scope ◽  
2018 ◽  
Vol 041 (09) ◽  
Author(s):  
Mary Stephen ◽  
Sharon Locke
Keyword(s):  
Practical Research

Practical Research: Texts as Tools

Science Scope ◽  
2019 ◽  
Vol 042 (05) ◽  
Author(s):  
Kirsten Edwards
Keyword(s):  
Practical Research

BUILDING THE PROGRAM OF TRAINING ETHNIC KNOWLEDGE FOR CADRES, CIVIL SERVANTS AND PUBLIC EMPLOYEES UP TO 2030

2019 ◽  
Vol 8 (4) ◽  
Author(s):  
Nguyen Van Dung ◽  
Nguyen Ngoc Minh ◽  
Pham Kim Cuong
Keyword(s):  
Ethnic Minority ◽  
Training Program ◽  
Political System ◽  
Civil Servants ◽  
Public Employees ◽  
Target Groups ◽  
Current Period ◽  
Urgent Task ◽  
Practical Research ◽  
Local Levels

Developing a ethnic knowledge training program for cadres, civil servants and public employees according to 04 target groups (Prime Minister, 2018) in the political system from the central to local levels to meet the requirements of ethnic minority affairs up to 2030 is an urgent task. Because the program is “the core” to create a breakthrough in training ethnic knowledge, improving the capacity of the contingent of cadres, civil servants and public employees in formulating ethnic policies and organizing the implementation of Party and State’s policies in the current period. The article analyzes the results of theoretical and practical research on the development of ethnic knowledge training program and provides the results of developing a program that meets the requirements of Vietnam’s ethnic minority affairs from now to 2030.

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