Assessment of risks constraining the sustainable development of forest ecosystems in the Saïda Mountains (Algeria) by using FMECA approach

2021 ◽  
Vol 11 (5) ◽  
pp. 566-571
Author(s):  
Adda-Hanifi Nadia Nora ◽  
Terras Mohamed ◽  
Bouchentouf Salim ◽  
Mellal Tahar ◽  
Labani Abder-rahmane
Keyword(s):  
Failure Mode ◽  
Forest Ecosystems ◽  
Action Plan ◽  
Evaluation Study ◽  
Mode Analysis ◽  
Mountain Forest ◽  
The Sustainable Development ◽  
Risk Sources ◽  
Set Up ◽  
Criticality Analysis

Mountain forest ecosystems and other biodiversity reserves represent “safety nets” for many communities for their livelihoods. They are economi-cally important sources of wood, fodder, food and non-wood forest prod-ucts. Controlling. the sustainable management of forest ecosystems neces-sarily involves identifying and assessing their condition and circumstance. The method chosen to set the prerequisites for a strategy to safe-guard the cork oak forests, is the one used to identify failures in systems: Failure Mode Analysis and Criticality Evaluation (FMACE). The results sought are recorded in a matrix based on the following points: Identification of hazard and risk sources; Segmentation of the factors causing hazards; Risk evaluation (severity, frequency, non-Detection) (BOUCHAOUR-DJABEUR,2020). The use of the Failure mode effects and criticality analysis approach (FMECA) dedi-cated to risk management for the identification and assessment of risks is possible and highly appreciated. In order to understand the degradation pro-cess of forest formations in Saida Mountains (Algeria), two matrices from modified FMECA method allowed identification of 15 main defective targets. Identified failures have been grouped into 5 categories namely: organization-al, technical, professional, management and socio-economic in order to facil-itate their remediation. For each failure, a score was assigned, allowing clas-sification of breaches in order to set up an action plan based on priorities. Results from our present evaluation study based on the FMECA approach will allow various actors of forest and mountain domain to better under-stand the degradation of this natural space and help to make decisions and undertake valid remediation actions.

Fuzzy risk assessment for electro-optical target tracker

2016 ◽  
Vol 33 (6) ◽  
pp. 830-851 ◽  
Author(s):  
Soumen Kumar Roy ◽  
A K Sarkar ◽  
Biswajit Mahanty
Keyword(s):  
Failure Mode ◽  
Failure Modes ◽  
Linear Equations ◽  
Mode Analysis ◽  
Failure Behavior ◽  
Membership Functions ◽  
Design And Development ◽  
Effect Analysis ◽  
Content Type ◽  
Criticality Analysis

Purpose – The purpose of this paper is to evolve a guideline for scientists and development engineers to the failure behavior of electro-optical target tracker system (EOTTS) using fuzzy methodology leading to success of short-range homing guided missile (SRHGM) in which this critical subsystems is exploited. Design/methodology/approach – Technology index (TI) and fuzzy failure mode effect analysis (FMEA) are used to build an integrated framework to facilitate the system technology assessment and failure modes. Failure mode analysis is carried out for the system using data gathered from technical experts involved in design and realization of the EOTTS. In order to circumvent the limitations of the traditional failure mode effects and criticality analysis (FMECA), fuzzy FMCEA is adopted for the prioritization of the risks. FMEA parameters – severity, occurrence and detection are fuzzifed with suitable membership functions. These membership functions are used to define failure modes. Open source linear programming solver is used to solve linear equations. Findings – It is found that EOTTS has the highest TI among the major technologies used in the SRHGM. Fuzzy risk priority numbers (FRPN) for all important failure modes of the EOTTS are calculated and the failure modes are ranked to arrive at important monitoring points during design and development of the weapon system. Originality/value – This paper integrates the use of TI, fuzzy logic and experts’ database with FMEA toward assisting the scientists and engineers while conducting failure mode and effect analysis to prioritize failures toward taking corrective measure during the design and development of EOTTS.

Vietnam and the sustainable development of the Mekong river basis

2002 ◽  
Vol 45 (11) ◽  
pp. 261-266 ◽  
Author(s):  
Nguyen Nhan Quang
Keyword(s):  
Sustainable Development ◽  
River Basin ◽  
Agricultural Development ◽  
Action Plan ◽  
Mekong Delta ◽  
Mekong River ◽  
Mekong River Basin ◽  
The Sustainable Development ◽  
Mekong River Commission ◽  
Set Up

Vietnam is a riparian country located in most downstream area of the Mekong river basin which is also shared by other states namely China, Myanmar, Laos, Thailand and Cambodia. While the Central Highlands of Vietnam has a great potential for hydropower development in tributaries of Mekong river, the Mekong delta in Vietnam territory is rich in natural resources which are favorable for agricultural development. However, besides local constraints which have being gradually remedied by Vietnam, the development of the Mekong delta is subject to, in both terms of quantity and quality, availability of water resources which relates to the water use of or discharge into the river of upper riparians. With a view to co-developing these resources in a sustainable and mutual benefit manner, Vietnam has cooperated with other states through framework of the Mekong River Commission set up by the 1995 Mekong Agreement. This paper describes the strategy and action plan applied by Viet Nam National Mekong Committee to reach the sustainable development of the Mekong river basin in general and of Vietnam parts located in the Mekong basin in particular.

Case Study and Fault Modeling for Wrong Redundancy Evaluation on DRAM Devices

2007 ◽  
Author(s):  
Martin Versen ◽  
Dorina Diaconescu ◽  
Jerome Touzel
Keyword(s):  
Failure Mode ◽  
Failure Modes ◽  
Fault Modeling ◽  
Mode Analysis ◽  
Root Cause ◽  
Failure Mode Analysis

Abstract The characterization of failure modes of DRAM is often straight forward if array related hard failures with specific addresses for localization are concerned. The paper presents a case study of a bitline oriented failure mode connected to a redundancy evaluation in the DRAM periphery. The failure mode analysis and fault modeling focus both on the root-cause and on the test aspects of the problem.

Failure Mode, Effects, and Criticality Analysis (FMECA)

1993 ◽  
Author(s):  
Robert Borgovini ◽  
Stephen Pemberton ◽  
Michael Rossi
Keyword(s):  
Failure Mode ◽  
Mode Effects ◽  
Criticality Analysis

The Rotterdam Initiative in Reducing Waste Discharges at Source

1991 ◽  
Vol 24 (10) ◽  
pp. 171-177
Author(s):  
T. Vellinga ◽  
J. P. J. Nijssen
Keyword(s):  
Public Relations ◽  
Action Plan ◽  
Detailed Balance ◽  
River Rhine ◽  
The North ◽  
Complementary Role ◽  
Action Programme ◽  
The North Sea ◽  
Set Up

Much of the material dredged from the port of Rotterdam is contaminated to such a degree that it must be placed in specially constructed sites. The aim of Rotterdam is to ensure that the dredged material will once again be clean. This will entail the thorough cleansing of the sources of the contamination of the sediment in the harbours and in the River Rhine. The Rotterdam Rhine Research Project (RRP) is one of the means to achieve this based on: technical research, legal research, public relations and dialogues with dischargers. The programme for five selected heavy metals is almost complete. For many heavy metal discharge points between Rotterdam and Rheinfelden, a specially devised independent load assessment has been carried out four times. Balance studies were used to determine the relative contributions of the point discharges to the total. Currently the results are being used in an attempt to negotiate agreements with a selected number of the major dischargers. At present, more detailed balance studies are being set up and exploratory measurements carried out for organic micropollutants. It may be concluded that the research is progressing successfully and methods and techniques developed seem satisfactory and broadly applicable. The Rhine Action Programme encompasses an international effort to improve the quality of the Rhine water. Although the RRP plays a modest complementary role to the Rhine Action Plan, there is no doubt of the value of this Rotterdam initiative. The mode of work followed in the RRP contains elements that can be of use in combatting the contamination of the North Sea by rivers other than the Rhine.

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