scholarly journals Surface and Subsurface Damage Caused by Bullet Impacts into Sandstone

Geosciences ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 395
Author(s):  
Oliver Campbell ◽  
Tom Blenkinsop ◽  
Oscar Gilbert ◽  
Lisa Mol
Keyword(s):  
Subsurface Damage ◽  
Armed Conflicts ◽  
Impact Point ◽  
Small Arms ◽  
Heritage Sites ◽  
Significant Damage ◽  
Backscatter Electron Imaging ◽  
Electron Imaging ◽  
The Impact ◽  
Internal Fracture

The shift of armed conflicts to more urbanised environments has increased the risk to cultural heritage sites. Small arms impacts are ubiquitous in these circumstances, yet the effects and mechanisms of damage caused are not well known. A sandstone target was shot under controlled conditions to investigate surface and subsurface damage. A 3D model of the damaged block, created by structure from motion photogrammetry, shows that internal fracturing was at least as extensive as the visible surface fractures. Backscatter electron imaging of the damaged surface shows a shift from intragranular fracturing and grain size reduction at < 5 mm from the impact point to primarily circumgranular fracturing and grain ‘plucking’ at 20 mm from the impact point. Internal fracture intensity decreased with distance from the centre of the crater. Volumes around the impact point are therefore at greater risk of subsequent weathering deterioration, but significant damage extends to the periphery of the target, rendering whole blocks vulnerable. The surface crater, despite being one of the most conspicuous aspects of conflict damage, has many times less area than internal and surface fractures.

scholarly journals Surface and subsurface damage caused by bullet impacts into sandstone

2021 ◽  
Author(s):  
Oliver Campbell ◽  
Tom Blenkinsop ◽  
Oscar Gilbert ◽  
Lisa Mol
Keyword(s):  
3D Model ◽  
Subsurface Damage ◽  
Armed Conflicts ◽  
Impact Point ◽  
Back Scatter Electron ◽  
Small Arms ◽  
Increased Risk ◽  
Fracture Intensity ◽  
Electron Imaging ◽  
The Impact

The shift of armed conflicts to more urbanised environments has increased risk to cultural her-itage sites. Small arms impacts are ubiquitous in these circumstances, yet the effects and mecha-nisms of damage caused are not well known. A sandstone target was shot under controlled con-ditions to investigate surface and subsurface damage. A 3D model of the damaged block, created by structure from motion photogrammetry, shows that internal fracturing was at least as exten-sive as the visible surface fractures. Back scatter electron imaging of the damaged surface shows a shift from intragranular fracturing and grain size reduction at <5 mm from the impact point, to primarily circumgranular fracturing and grain ‘plucking’ at 20 mm from the impact point. In-ternal fracture intensity decreased with distance from the centre of the crater. Volumes around the impact point are therefore at greater risk of subsequent weathering deterioration, but signif-icant damage extends to the periphery of the target, rendering whole blocks vulnerable. The surface crater, despite being one of the most conspicuous aspects of conflict damage, has many times less area than internal and surface fractures.

The Impact of Insect Infestation on Stored Purpled Cocoa Beans

2018 ◽  
Vol 1 (3) ◽  
pp. 176-181 ◽  
Author(s):  
E. Tettey
Keyword(s):  
Weight Loss ◽  
Insect Population ◽  
Insect Infestation ◽  
Percentage Weight Loss ◽  
Cocoa Beans ◽  
Significant Damage ◽  
Percentage Weight ◽  
Fermentation Period ◽  
The Impact

Under-fermentation of cocoa beans produces purple beans. The fermentation period is 6 to 7 days but some cocoa farmersunder-ferment their cocoa beans leading to the development of purple cocoa beans. This study determined the impact of insectinfestation on stored purple cocoa beans. Wet cocoa beans were fermented for 1, 2, 3, 4 and 5 days to produce the purple beans.Ephestia cautella and Tribolium castaneum, both singly and in combination, were introduced into the cocoa beans and storedfor different (30, 60, 90 and 120 days) period. Insect population, percentage weight loss and the contaminants produced bythese insects were determined. Cocoa beans infested with E. cautella alone had the highest population of 297.0 ± 22.7. Beansfermented for 3 days had the lowest insect population both singly and in combination after 120 days of storage. The highestpercentage weight loss was recorded in cocoa beans fermented for one day (10.1 ± 1.87%) and 4 days (10.1 ± 8.74%). T.castaneum did not cause much damage to the cocoa beans but E. cautella alone caused significant damage to stored cocoabeans. Insect infestation and poor fermentation contribute significantly to the reduction in quality of cocoa beans.

Does historical nostalgia predict tourists' delight and their destination loyalty intention for the world cultural heritage site of Mahabalipuram, India?

2020 ◽  
Author(s):  
Anil Verma ◽  
G. Rajendran
Keyword(s):  
Cultural Heritage ◽  
Structural Equation ◽  
Destination Loyalty ◽  
Heritage Sites ◽  
Heritage Site ◽  
Loyalty Intention ◽  
Tourism Studies ◽  
The World ◽  
World Cultural Heritage ◽  
The Impact

Delighting consumers has been one of the most important goals for marketing stakeholders but the effect of historical nostalgia on tourists delight at the world cultural heritage sites has rarely been examined. This study examines the impact of historical nostalgia on the heritage tourists' delight, their satisfaction and destination loyalty intention. The survey for the study was conducted at the world cultural heritage site of Mahabalipuram, India. The hypotheses were tested through the structural equation modelling technique. The results indicated positive and significant effect of historical nostalgia on tourists' delight, satisfaction and destination loyalty intention. The study makes contribution to the tourism studies by examining the role of historical nostalgia in delighting the tourists at the cultural heritage sites and instructs the managers to evoke such experiences to keep the heritage tourists delighted and thereby enhance their loyalty.

Incentivizing Peace

2018 ◽  
Author(s):  
Jaroslav Tir ◽  
Johannes Karreth
Keyword(s):  
World War Ii ◽  
Civil Wars ◽  
Full Scale ◽  
Armed Conflicts ◽  
East Timor ◽  
Low Level ◽  
Self Interest ◽  
The World ◽  
Economic Tools ◽  
The Impact

Civil wars are one of the most pressing problems facing the world. Common approaches such as mediation, intervention, and peacekeeping have produced some results in managing ongoing civil wars, but they fall short in preventing civil wars in the first place. This book argues for considering civil wars from a developmental perspective to identify steps to assure that nascent, low-level armed conflicts do not escalate to full-scale civil wars. We show that highly structured intergovernmental organizations (IGOs, e.g. the World Bank or IMF) are particularly well positioned to engage in civil war prevention. Such organizations have both an enduring self-interest in member-state peace and stability and potent (economic) tools to incentivize peaceful conflict resolution. The book advances the hypothesis that countries that belong to a larger number of highly structured IGOs face a significantly lower risk that emerging low-level armed conflicts on their territories will escalate to full-scale civil wars. Systematic analyses of over 260 low-level armed conflicts that have occurred around the globe since World War II provide consistent and robust support for this hypothesis. The impact of a greater number of memberships in highly structured IGOs is substantial, cutting the risk of escalation by over one-half. Case evidence from Indonesia’s East Timor conflict, Ivory Coast’s post-2010 election crisis, and from the early stages of the conflict in Syria in 2011 provide additional evidence that memberships in highly structured IGOs are indeed key to understanding why some low-level armed conflicts escalate to civil wars and others do not.

scholarly journals A quantitative description of the spatial–temporal distribution and evolution pattern of world cultural heritage

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Liang Yongqi ◽  
Yang Ruixia ◽  
Wang Pu ◽  
Yang Anlin ◽  
Chen Guolong
Keyword(s):  
Cultural Heritage ◽  
World Heritage ◽  
World Heritage Site ◽  
Heritage Sites ◽  
Evolution Pattern ◽  
Modelling Analysis ◽  
Time Series Modelling ◽  
World Cultural Heritage ◽  
The Impact ◽  
Peak Value

AbstractDepicting the temporal and spatial evolution pattern of global world cultural heritage systematically and finely is the basis of heritage recognition and protection. In this study, 869 world cultural heritage inscriptions (through 2019) were selected as the research objects, and the times and types of each World Heritage site were manually annotated from more than 5000 pieces of data. Through time series modelling, the advantages of and changes in heritage declarations in different regions and periods were analysed, and the impact of heritage strategy on the number of heritage sites included in each region was evaluated. The results showed that the implementation of heritage policy greatly impacted each region, especially on the number of heritage sites in Asia and the Pacific region. Using the heritage era to carry out modelling analysis, from the perspective of the integrity of historical heritage cultural types, it is considered that there may be cultural heritage sites in the Caribbean and Latin America that have not been given enough attention. The modelling analysis results of era attributes can support the fairness of heritage determination. By calculating the frequency and peak value of heritage sites at the national scale, the frequency and peak value of each country in the top 10 list are used to characterize the ability of national declarations of cultural heritage and reveal the differences in the ability of each member country to declare heritage sites and the heritage era. By calculating the distribution density of the heritage era, this study finds that the world’s cultural heritage is not concentrated in the Middle Ages (600–1450) but the periods of Reformation and Exploration (1450–1700) and Progress and Empire (1850–1914). The above analysis shows that there are imbalances and strategic adjustment effects concerning regions, countries, eras and types in World Heritage list development. The composition types of heritage are complex, and the combination types have obvious changes in different periods. It is suggested that the strategy of world cultural heritage collection should be further optimized to fully guarantee the balance of regions, countries and types, and the heritage value should be fully considered in heritage protection with more diversity and complexity of types.

Determination of integral indicators characterizing the possibility of accommodating the evacuated population in the territory of the Republic of Kazakhstan

2020 ◽  
pp. 154851292097028
Author(s):  
Yernar Zh Akimbayev ◽  
Zhumabek Kh Akhmetov ◽  
Murat S Kuanyshbaev ◽  
Arman T Abdykalykov ◽  
Rashid V Ibrayev
Keyword(s):  
Statistical Data ◽  
Armed Conflicts ◽  
Security Issues ◽  
Inaccurate Information ◽  
The Subject ◽  
The Republic ◽  
The Impact ◽  
Integrated Indicators ◽  
Selection Of

Studying the historical facts of past wars and armed conflicts and natural and man-made emergencies, today in the Republic of Kazakhstan one of the most important security issues is the preparation and organization of the evacuation of the population from possible dangerous zones, taking into account the emergence of new threats to the country’s security. The paper presents an algorithm for constructing universal scales of the distribution function of opportunities by types of support and rebuilding them into subject scales using display functions. The purpose of the paper is to determine the integral indicators characterizing the possibility of accommodation of the evacuated population and the impact on resources during relocation. On the subject scales of cities and districts of the region, indicators of the possibility of relocation of a certain amount of the evacuated population by types of support and indicators characterizing the impact on the district’s resources during resettlement of a certain amount of the evacuated population are determined. It was concluded that the use of integrated indicators allows the selection of areas to accommodate the evacuated population without the use of statistical data, in conditions of incomplete and inaccurate information. The presented method does not replace traditional methods based on classical methods of territory assessment by the level of life sustenance, but also allows their reasonable combination with the experience of specialists in this field, taking into account the incompleteness, uncertainty, and inconsistency of the initial data of the study area, which does not allow the application of existing methods.

scholarly journals Google Earth Engine as Multi-Sensor Open-Source Tool for Supporting the Preservation of Archaeological Areas: The Case Study of Flood and Fire Mapping in Metaponto, Italy

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1791
Author(s):  
Carmen Fattore ◽  
Nicodemo Abate ◽  
Farid Faridani ◽  
Nicola Masini ◽  
Rosa Lasaponara
Keyword(s):  
Open Source ◽  
Archaeological Site ◽  
Unsupervised Classification ◽  
Google Earth ◽  
Heritage Sites ◽  
Cultural Properties ◽  
Google Earth Engine ◽  
Archaeological Areas ◽  
The Impact

In recent years, the impact of Climate change, anthropogenic and natural hazards (such as earthquakes, landslides, floods, tsunamis, fires) has dramatically increased and adversely affected modern and past human buildings including outstanding cultural properties and UNESCO heritage sites. Research about protection/monitoring of cultural heritage is crucial to preserve our cultural properties and (with them also) our history and identity. This paper is focused on the use of the open-source Google Earth Engine tool herein used to analyze flood and fire events which affected the area of Metaponto (southern Italy), near the homonymous Greek-Roman archaeological site. The use of the Google Earth Engine has allowed the supervised and unsupervised classification of areas affected by flooding (2013–2020) and fire (2017) in the past years, obtaining remarkable results and useful information for setting up strategies to mitigate damage and support the preservation of areas and landscape rich in cultural and natural heritage.

Within- and Between-Event Variabilities of Strong-Velocity Pulses of Moderate Earthquakes within Dense Seismic Arrays

2021 ◽  
Author(s):  
Ming-Hsuan Yen ◽  
Sebastian von Specht ◽  
Yen-Yu Lin ◽  
Fabrice Cotton ◽  
Kuo-Fong Ma
Keyword(s):  
Ground Motion ◽  
Structural Engineering ◽  
Strike Slip ◽  
Physical Factors ◽  
Velocity Amplitude ◽  
Seismic Arrays ◽  
Directivity Effect ◽  
Forward Directivity ◽  
Significant Damage ◽  
The Impact

ABSTRACT Ground motion with strong-velocity pulses can cause significant damage to buildings and structures at certain periods; hence, knowing the period and velocity amplitude of such pulses is critical for earthquake structural engineering. However, the physical factors relating the scaling of pulse periods with magnitude are poorly understood. In this study, we investigate moderate but damaging earthquakes (Mw 6–7) and characterize ground-motion pulses using the method of Shahi and Baker (2014) while considering the potential static-offset effects. We confirm that the within-event variability of the pulses is large. The identified pulses in this study are mostly from strike-slip-like earthquakes. We further perform simulations using the frequency–wavenumber algorithm to investigate the causes of the variability of the pulse periods within and between events for moderate strike-slip earthquakes. We test the effect of fault dips, and the impact of the asperity locations and sizes. The simulations reveal that the asperity properties have a high impact on the pulse periods and amplitudes at nearby stations. Our results emphasize the importance of asperity characteristics, in addition to earthquake magnitudes for the occurrence and properties of pulses produced by the forward directivity effect. We finally quantify and discuss within- and between-event variabilities of pulse properties at short distances.

Kulturgüterschutz im System der Vereinten Nationen

2021 ◽  
Keyword(s):  
Human Memory ◽  
Cultural Property ◽  
Armed Conflicts ◽  
Islamic State ◽  
Humanitarian Law ◽  
World Heritage Sites ◽  
Human Rights Protection ◽  
Heritage Sites ◽  
Terrorist Groups ◽  
Core Elements

The images of the destroyed Buddha statues of Bamiyan, of the ancient city of Palmyra lying in ruins, and of destroyed World Heritage sites in Timbuktu have received much attention from the international public. At the same time, these cases also reflect a new dimension in the conduct of armed hostilities today, which is increasingly aimed at destroying cultural identities or heritage. Therefore, in addition to the issue of preserving the world's cultural heritage, especially in the context of human rights protection and international humanitarian law, the protection of cultural property is seen as an increasingly important task for the United Nations and its institutions. Pieces of Art, significant written documents, memorials, and places of worship are deliberately destroyed in conflicts by armed or terrorist groups, such as the so-called Islamic State, as they represent core elements of cultural identity. The increasing number of reports on the loss of priceless cultural assets in Syria, Iraq and Mali exemplify this. Increasingly, violent non-state actors are deliberately using the destruction of cultural property as a means of warfare and even "ethnic cleansing." For the international community, this makes the protection of cultural property in armed conflicts and in the field of restoring statehood at the same time increasingly significant. The preservation of this global human memory is one of the greatest challenges of modern social, political, and legal discourses. Although the use of the destruction of cultural property to divide societies, even to erase a collective memory or destroy social structures, has long been part of warfare, this aspect has been insufficiently considered by the media public and especially in academic discourse. With contributions by Frederik Becker, Dr. Manuel Brunner, Paul Fabel, Dr. Martin Gerner, Dario Haux, Ruth Lechner, Prof. Dr. Antionette Maget Dominicé and Vincent Widdig.

Impactul inundaţiilor pluviale din Republica Moldova și măsurile de diminuare a lui

2019 ◽  
Author(s):  
Galina Mindru ◽  
Keyword(s):  
Statistical Data ◽  
Negative Effects ◽  
Digital Map ◽  
Republic Of Moldova ◽  
Significant Damage ◽  
Annual Frequency ◽  
The Republic ◽  
Favorable Conditions ◽  
The Impact ◽  
Main Factor

In the Republic of Moldova, the main factor contributing to the floods is the torrential rains from the warm semester of the year, which create favorable conditions for triggering strong, sometimes catastrophic floods in the rivers of the republic, especially in the smaller ones. During the study period, 40 floods with significant damage were recorded in the country, with an annual frequency ranging from 0 to 12 cases. In the administrativeterritorial profile, the damages caused by the aforementioned floods varied greatly. Based on the statistical data, a digital map was developed reflecting the degree of exposure of the territory of the Republic of Moldova in the administrative-territorial aspect to the mentioned risk, expressed by the value of the damages caused. In order to reduce the impact caused by the flood floods, measures have been developed to prevent, reduce and combat the negative effects of that risk.

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