Moraine Lake Outburst Simulation of Glacier Sliding and Risk Assessment

2011 ◽  
Vol 243-249 ◽  
pp. 3311-3314
Author(s):  
Cheng Hui Peng ◽  
Chang Ming Wang ◽  
Gang Cheng Wang
Keyword(s):  
Risk Assessment ◽  
Field Investigation ◽  
Quantitative Expression ◽  
Geological Disaster ◽  
Close Relationship ◽  
Moraine Lake ◽  
Risk Degree

Moraine Lake outburst is a common geological disaster in Tibet. Meltwater infiltrates into glacier through the cracks and lubricates it, increasing the instability of glacier. There is a close relationship between glacier landslide and Moraine Lake outburst. In order to explain it, we established the glacier sliding model, and analyzed the sliding characteristics. Then we discussed the link between glacier landslide and Moraine Lake outburst, and then proposed a quantitative expression. Finally we analyzed the glacier stability of Aya Moraine Lake and others, forecasted and evaluated the risk degree of Moraine Lake outburst. Field investigation conclusions are consistent with calculated results, that is to say, the calculated results are accurate and the predictions are reasonable.

The Review and Prospects of the Study on Chinese Geological Disaster

2012 ◽  
Vol 166-169 ◽  
pp. 2597-2600
Author(s):  
Jun Wang ◽  
Shun Yang ◽  
Xian Jun Ji ◽  
Guo Qiang Ou
Keyword(s):  
Risk Assessment ◽  
Information Processing ◽  
Processing Capacity ◽  
Disaster Prevention ◽  
System Perspective ◽  
Comprehensive Management ◽  
Geological Disaster ◽  
Research Situation ◽  
Basin System ◽  
Monitoring And Early Warning

Based on plenty of references, such as monograph, journal, thesis and other document, this paper summarized the present research situation of Chinese geological disaster. Although geological disaster research has made some achievements in forecasting, monitoring and early warning, risk assessment, disaster prevention and other aspects, it still has many problems, such as theories and methods of geological disaster is weak, and lack disaster information processing capacity. This paper also put forward the importance of studying geological disaster from the basin and system perspective and carrying out comprehensive management of basin system disaster.

scholarly journals Glutathione transferase isoenzymes from human prostate

1990 ◽  
Vol 271 (2) ◽  
pp. 481-485 ◽  
Author(s):  
C Di Ilio ◽  
A Aceto ◽  
T Bucciarelli ◽  
S Angelucci ◽  
M Felaco ◽  
...  
Keyword(s):  
Isoelectric Focusing ◽  
Immunohistochemical Staining ◽  
Human Liver ◽  
Glutathione Transferase ◽  
Human Prostate ◽  
Immunoblotting Analysis ◽  
Qualitative And Quantitative ◽  
Quantitative Expression ◽  
Close Relationship ◽  
Liver And Kidney

By using affinity-chromatography and isoelectric-focusing techniques, several forms of glutathione transferase (GSTs) were resolved from human prostate cytosol. All the three major classes of GST, i.e. Alpha, Mu and Pi, are present in human prostate. However, large inter-individual variation in the qualitative and quantitative expression of different isoenzymes resulted in the samples investigated. The most abundant group of prostate isoenzymes showed acid (pI 4.3-4.7) behaviour and were classified as Pi class GSTs on the basis of their immunological and structural properties. Immunohistochemical staining of Pi class GSTs was prevalently distributed in the epithelial cells surrounding the alveolar lumen. Class Mu GSTs are also expressed, although in small amounts and in a limited number of samples, by human prostate. The major cationic isoenzyme purified from prostate, GST-9.6; (pI 9.6; apparent subunit molecular mass of 28 kDa), appears to be different from the cationic GST alpha-epsilon forms isolated from human liver and kidney as evidenced by its structural, kinetical and immunological properties. This enzyme, which accounts for about 20-30% (on protein basis) of total amount of GSTs, is expressed by only 40% of samples. GST-9.6 has the ability to cross-react in immunoblotting analysis with antisera raised against rat liver GST 2-2, rather than with antisera raised against members of human Alpha, Mu and Pi class GSTs. Although prostate GST-9.6 shows close relationship with the human skin GST pI 9.9, it does not correspond to any other known human GST.

scholarly journals Hierarchic Analysis Method to Evaluate Rock Burst Risk

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Ming Ji ◽  
Hong-jun Guo ◽  
Yi-dong Zhang ◽  
Tao Li ◽  
Lin-sheng Gao
Keyword(s):  
Risk Assessment ◽  
Rock Burst ◽  
Evaluation Criteria ◽  
Analysis Method ◽  
Rock Bursts ◽  
Natural Factors ◽  
Comprehensive Index ◽  
Actual Risk ◽  
Rock Burst Risk ◽  
Risk Degree

In order to reasonably evaluate the risk of rock bursts in mines, the factors impacting rock bursts and the existing grading criterion on the risk of rock bursts were studied. By building a model of hierarchic analysis method, the natural factors, technology factors, and management factors that influence rock bursts were analyzed and researched, which determined the degree of each factor’s influence (i.e., weight) and comprehensive index. Then the grade of rock burst risk was assessed. The results showed that the assessment level generated by the model accurately reflected the actual risk degree of rock bursts in mines. The model improved the maneuverability and practicability of existing evaluation criteria and also enhanced the accuracy and science of rock burst risk assessment.

scholarly journals Interconnected clusters of invasive meningococcal disease due to Neisseria meningitidis serogroup C ST-11 (cc11), involving bisexuals and men who have sex with men, with discos and gay-venues hotspots of transmission, Tuscany, Italy, 2015 to 2016

2018 ◽  
Vol 23 (34) ◽  
Author(s):  
Alessandro Miglietta ◽  
Cecilia Fazio ◽  
Arianna Neri ◽  
Patrizio Pezzotti ◽  
Francesco Innocenti ◽  
...  
Keyword(s):  
Meningococcal Disease ◽  
Vaccination Campaign ◽  
Case Fatality ◽  
Population Group ◽  
The United States ◽  
Field Investigation ◽  
Invasive Meningococcal Disease ◽  
Close Relationship ◽  
And Bisexual ◽  
Sex With Men

In 2015 an increased incidence of invasive meningococcal disease due to serogroup-C (MenC) occurred in Tuscany, Italy. This led the Regional Health Authority of Tuscany to implement a reactive immunisation campaign and to launch an epidemiological field investigation aiming to address targeted immunisation interventions. In 2011–14, 10 MenC cases had been reported compared with 62 cases in 2015–16. The case fatality rate was 21% (n = 13) and 51 cases (82.3%) were confirmed as C:P1.5–1,10–8:F3–6:ST-11(cc11). Overall, 17 clusters were recognised. Six discos and four gay-venues were found to have a role as transmission-hotspots, having been attended by 20 and 14 cases in the 10 days before symptoms onset. Ten and three cases occurred, respectively, among men who have sex with men (MSM) and bisexual individuals, who were involved in 11 clusters. In addition, heterosexual cases (n = 5) attending gay-venues were also found. Secondary cases were not identified. Molecular typing indicated close relationship with MenC clusters recently described among gay, bisexual and other MSM in Europe and the United States, suggesting a possible international spread of the serogroup-C-variant P1.5–1,10–8:F3–6:ST-11(cc11) in this population-group; however, epidemiological links were not identified. In December 2016, a targeted vaccination campaign involving discos and lesbian, gay, bisexual, and transgender (LGBT) associations was implemented. During 2017, 10 cases of MenC occurred, compared with 32 and 30 cases reported in 2015 and 2016 respectively, suggesting the effectiveness of the reactive and targeted immunisation programmes.

scholarly journals Spatial-temporal risk assessment of urbanization impacts on ecosystem services based on pressure-status - response framework

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Peng Kang ◽  
Weiping Chen ◽  
Ying Hou ◽  
Yuanzheng Li
Keyword(s):  
Risk Assessment ◽  
Ecosystem Services ◽  
Urban Area ◽  
Land Use Planning ◽  
Rural Areas ◽  
Analytical Framework ◽  
Mean Value ◽  
Rapid Urbanization ◽  
The Mean ◽  
Risk Degree

AbstractRapid urbanization is a global phenomenon that has altered many ecosystems, generating ecological risks such as causing a decline in many ecosystem services. In this study, ecosystem service oriented risk assessment combined with PSR were quantifying how urbanization influences the ecosystem services about Beijing-Tianjin-Hebei urban agglomeration of China between 2000 year and 2010 year. The mean value of ecosystem services in three gradient (rural areas, suburban, and urban area) declined from 4.12 Yuan/m2 to 1.75 Yuan/m2 in 2000 year, while the mean value in 2010 year showed significant decrease and also represented urban-rural gradient. The average of pressure in PSR framework increased from 0.145 to 0.162 between two periods, while the average of status decrease from 0.378 to 0.311, and the status value decrease from 0.096 to 0.087. The higher risk degree V increased 6.95% between two periods, while the lower risk degree I decrease 6.89%. Two main types including high value gathering field and low value gathering field existed between two periods, the higher gathering field owned the ratio of 9.85%, mainly distributed around the urban area of Beijing and Tianjin, while the lower gathering field possess the ratio of 10.69%, mainly distributed in the northern and western in region. Overall, the analytical framework proposed in this study can provide comprehensive information to evaluate the impacts of complex practice in land-use planning and region ecosystem management.

Sign in / Sign up

Export Citation Format

Share Document