The pandemic spread of Covid-19 is worth examining by the geographic eye in order to highlight spatial dimension this propagation. geographical approach mainly convened observe some territorializing aspects coronavirus, through which it becomes possible define territorial specificities that intervene as vectors vulnerability pandemic.
 Claiming be one first researches on Algeria, article p...

All too often we hear stories about the IT Department or some consultant running a vulnerability scan that takes down a key control systems server or component with potentially devastating effects on the underlying process. This is usually followed by the statement that SCADA and other control systems should never be scanned. In fact, many experts and training courses recommend that control sys...

bazargan and poldasht plains are located in the north of west azarbaijan, northwest of iran. in this area, groundwater supplies main water demands. aim of this research is assessment of aquifer vulnerability for contamination potential on the basis of hydrogeological conditions of the study area. for this purpose the combined use of the drastic and geographical information system (gis) demonstr...

introduction nowadays, the vulnerability of human’s dwellings to the natural disasters has been steadily increasing as the results of the population centralisation. economic activities in vast and dense regions and disorganised and irregular conditions of dwellings in which the low-income dwellers of urban and rural areas live. the scale of damage caused by a crisis is not only related to its d...

The fundamental processea of ignition and eonbuation are reviewed to date as part of the OCD program for aaseaaing urban vulnerability to fire from nuclear barste* Sufficient background infomatlon is provided for use in future fire-damage aaaesaments and fire-protection procedures. Included are definitlona of the types of ignition and combustion, the factors governing ignition and combustion, a...

A chaotic map has sensitivity to changes in the initial conditions and parameters, and a long-term forecast becomes impossible by iterating a chaotic map. These features look similar to the features of cryptology. For this reason, it is effective to use chaotic maps for cryptosystems. In this research, we investigate features of the modified cut map when the parameters αi are changed. We use th...

Computer or communication networks are so designed that they do not easily get disrupted under external attack and, moreover, these are easily reconstructed when they do get disrupted. These desirable properties of networks can be measured by various parameters such as connectivity, toughness, tenacity and rupture degree. Among these parameters, tenacity and rupture degree are comparatively bet...

Karst is a hydrogeological environment of importance not only for its water resources potential but also for its scenic and economic potential, thereby increasing the intensity of human impact. The uniqueness of karst in this regard stems from its high sensitivity and vulnerability to imposed pressures and its distinctive response to these pressures. Therefore, a clear definition and formulatio...