scholarly journals PERANCANGAN SISTEM PENCEGAHAN FLOODING PADA JARINGAN

JURTEKSI ◽  
2018 ◽  
Vol 4 (2) ◽  
pp. 165-170
Author(s):  
Herman Saputra ◽  
Nofriadi Nofriadi
Keyword(s):  

Suatu serangan ke dalam Server jaringan computer dapat terjadi kapan saja. Baik pada saat administrator sedang kerja atupun tidak. Dengan demikian dibutuhkan sistem pertahanan didalam server itu sendiri yang bisa menganalisa langsung apakah setiap paket yang masuk tersebut adalah data yang diharapkan ataupun data yang tidak diharapkan. Kalau paket tersebut merupakan data yang tidak diharapkan, diusahakan agar komputer bisa mengambil tindakan yaitu dengan mengeblok IP asal paket tersebut.Pemodelan suatu sistem yang digunakan untuk mengatasi flooding data pada suatu jaringan. Sistem didesain dengan jalan membuat suatu firewall yang aktif yang bisa mendifinisikan setiap data yang masuk kedalam server, apakah data yang datang itu merupakan sebuah data flood atau data yang diperlukan oleh user. Pemodelan dibuat dengan menggunakan bahasa pemrograman Delphi, dan dalam lingkungan jaringan computer berbasis ip address.Kata Kunci : Flooding, Jaringan computer, blokir ip, paket data, tcp /ip

10.7249/rr315 ◽  
2014 ◽  
Author(s):  
Isaac Porche ◽  
Bradley Wilson ◽  
Erin-Elizabeth Johnson ◽  
Shane Tierney ◽  
Evan Saltzman

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3392
Author(s):  
Ivana Hlaváčová ◽  
Michal Kačmařík ◽  
Milan Lazecký ◽  
Juraj Struhár ◽  
Petr Rapant

Many technical infrastructure operators manage facilities distributed over large areas. They face the problem of finding out if a flood hit a specific facility located in the open countryside. Physical inspection after every heavy rain is time and personnel consuming, and equipping all facilities with flood detection is expensive. Therefore, methods are being sought to ensure that these facilities are monitored at a minimum cost. One of the possibilities is using remote sensing, especially radar data regularly scanned by satellites. A significant challenge in this area was the launch of Sentinel-1 providing free-of-charge data with adequate spatial resolution and relatively high revisit time. This paper presents a developed automatic processing chain for flood detection in the open landscape from Sentinel-1 data. Flood detection can be started on-demand; however, it mainly focuses on autonomous near real-time monitoring. It is based on a combination of algorithms for multi-temporal change detection and histogram thresholding open-water detection. The solution was validated on five flood events in four European countries by comparing its results with flood delineation derived from reference datasets. Long-term tests were also performed to evaluate the potential for a false positive occurrence. In the statistical classification assessments, the mean value of user accuracy (producer accuracy) for open-water class reached 83% (65%). The developed solution typically provided flooded polygons in the same areas as the reference dataset, but of a smaller size. This fact is mainly attributed to the use of universal sensitivity parameters, independent of the specific location, which ensure almost complete successful suppression of false alarms.


The study was undertaken to design a weir in sivakasi lake of Tamil nadu. The present details of the lake such as combined catchment, intercepted catchment of the lake, full tank level, maximum water level of the tank, bund level, ground level and details of the weir such as size of the weir, materials used for the construction of the weir were analysed. And we have collected the population in that area, rain fall data, flood ratio of that particular lake and total number of houses in that area, number of houses in upstream and number of houses in down stream of the lake. The cause of designing a weir is due to the damage in the existing weir and bunds of the lake so it cannot with stand the pressure of the water in heavy rain fall. To avoid the flood water entering in the residential areas near by the lake we have designed a weir. So that the water can be saved in the lake and there will be no flood occurs in due to the heavy rain fall.


2010 ◽  
Vol 26 ◽  
pp. 105-111 ◽  
Author(s):  
M. C. Llasat ◽  
M. Llasat-Botija ◽  
A. Rodriguez ◽  
S. Lindbergh

Abstract. This work focuses on the analysis and characterization of the flash flood events occurring during summer in Catalonia. To this aim, a database with information about the social impact produced by all flood events recorded in Catalonia between 1982 and 2007 has been built. The social impact was obtained systematically on the basis of news press data and, occasionally, on the basis of insurance data. Flood events have been classified into ordinary, extraordinary and catastrophic floods, following the proposal of Llasat et al.~(2005). However, bearing in mind flash flood effects, some new categories concerning casualties and car damage have also been introduced. The spatial and temporal distribution of these flood events has been analyzed and, in an effort to better estimate the social impact and vulnerability, some indicators have been defined and analyzed for a specific region. These indicators allow an analysis of spacial and temporal trends as well as characterization of the events. Results show a flash-flood increase in summer and early autumn, mainly due to inter-annual and intra-annual changes in population density.


2003 ◽  
pp. 12-24 ◽  
Author(s):  
Michael Boahene ◽  
George Ditsa

Knowledge Management and Knowledge Management Systems are slowly but surely capturing the attention of many organisations in a quest for competitive advantage. Like many other computing fads before them, there is no shortage of recipes by its proponents. This chapter discusses the emerging discipline of Knowledge Management in computing and explains the concepts underlying Knowledge Management Systems that will lead to a better development and implementation of these systems. In particular, it tackles the conceptual confusion about data, information, and knowledge, which appears to be finding its way into the Knowledge Management literature. The terms, ‘capta’ (Checkland, Howell, 1998) and ‘constructed data’ (Flood, 1999), are used in analysing these concepts to clear some of the confusion surrounding them. The use of these terms also highlights our (the IT community) taking for granted assumptions about the hierarchical relationship and the more insightful emergent relationships.


Database ◽  
2010 ◽  
Vol 2010 ◽  
Author(s):  
Marc Bouffard ◽  
Michael S. Phillips ◽  
Andrew M.K. Brown ◽  
Sharon Marsh ◽  
Jean-Claude Tardif ◽  
...  

Author(s):  
Muhammad Muhajir ◽  
Berky Rian Efanna

Landslide is one of movement of soil, rock, soil creep, and rock debris that occurred the move of the slopes. It is caused by steep slopes, high rainfall, deforestation, mining activities, and erosion. The impacts of the landslide are loss of property, damage to facilities such as homes and buildings, casualties, psychological trauma, disrupted economic and environmental damage. Based on the impacts of landslide, mitigation required to take early precautions are to know how the pattern of association between the sequence of events landslides and to know how the associative relationship pattern of earthquakes. Based on the impacts, the results of this research is associative relationship pattern is obtained from data flood that occurs in Indonesia, namely in case of heavy rain will occur labile soil structure to support the value of 0.37, confidence level of 41% and the power of formed ruled is 1.02.


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