Small-Scale Mining, Rural Subsistence and Poverty in West Africa

2006 ◽  
Keyword(s):  
West Africa ◽  
Small Scale

Offloading Operability of Small Scale AG FLNG With Side-by-Side Moored Small Scale LNG Carrier in Offshore West Africa

2017 ◽  
Author(s):  
Mun-sung Kim ◽  
Eric Morilhat ◽  
X. C. Nguyen ◽  
Bo-hee Kim ◽  
Jung-moon Jang ◽  
...  
Keyword(s):  
West Africa ◽  
Relative Motion ◽  
Structural Integrity ◽  
Effective Means ◽  
Production Capacity ◽  
Cost Effective ◽  
Body Motion ◽  
Small Scale ◽  
Associated Gas ◽  
High Level

This study describes one of the technical solutions for Small Scale FLNG (SSFLNG)[1] development specifically designed to monetize Associated Gas (AG) of producing oil fields located within convenient distance of an existing LNG Plant or Port with LNG storage facility. Limited production capacity combined with short range small scale LNG carriers (SSLNGC), provide a cost effective means for LNG production. Ship to ship off-loading operation by loading arm has been considered in AG SSFLNG. Produced LNG is to be off-loaded from the SSFLNG to side-by-side moored SSLNGC. Relative motion and dynamic load acting on loading arm system in side-by-side mooring arrangement is one of key factors to estimate the offloading operability of the AG SSFLNG. In this paper, a numerical two-body motion analysis for the side-by-side moored SSFLNG in frequency- and time-domain is carried out. Also, the basic engineering work is carried out for the marine loading arms (MLA). Since the MLA reacts approximately as a linear system, it is calculated by a full spectral RAO analysis for each of the worst load cases issued from the spectral ranking. All loads and stresses inside the MLA are verified in accordance with EN1474-1[2] for the situations identified in the previous step. A high level fatigue analysis focused on the cryogenic swivel joints is carried out. Based on the numerical calculation for relative motion in side-by-side moored FLNG, we have been performed structural assessment for MLA in several environment conditions. The structural integrity of both MLA and the LNGC manifold are validated during offloading for Offshore West Africa.

Economics of small-scale aquaponics system in West Africa: A SANFU case study

2020 ◽  
pp. 1-17
Author(s):  
Emmanuel O. Benjamin ◽  
Gertrud R. Buchenrieder ◽  
Johannes Sauer
Keyword(s):  
West Africa ◽  
Small Scale

scholarly journals The status of routine fishery data collection in Southeast Asia, central America, the South Pacific, and West Africa, with special reference to small-scale fisheries

2011 ◽  
Vol 68 (8) ◽  
pp. 1743-1750 ◽  
Author(s):  
Gertjan J. de Graaf ◽  
Richard J. R. Grainger ◽  
Lena Westlund ◽  
Rolf Willmann ◽  
David Mills ◽  
...  
Keyword(s):  
Developing Countries ◽  
Data Collection ◽  
West Africa ◽  
Special Reference ◽  
Central America ◽  
Small Scale ◽  
Small Scale Fisheries ◽  
Status And Trends ◽  
The Status ◽  
Fishery Data

Abstract de Graaf, G. J., Grainger, R. J. R., Westlund, L., Willmann, R., Mills, D., Kelleher, K., and Koranteng, K. 2011. The status of routine fishery data collection in Southeast Asia, central America, the South Pacific, and West Africa, with special reference to small-scale fisheries. – ICES Journal of Marine Science, 68: 1743–1750. The Food and Agriculture Organization (FAO) strategy for improving information on the status and trends of capture fisheries (FAO Strategy STF) was endorsed by Member States and the UN General Assembly in 2003. Its overall objective is to provide a framework, strategy, and plan to improve knowledge and understanding of the status and trends of fisheries as a basis for policy-making and management, towards conservation and sustainable use of resources within ecosystems. The FAO supports the implementation of FAO Strategy STF in developing countries through a project known as FAO FishCode–STF, and an initiative funded by the World Bank entitled the “BigNumbers project”. The BigNumbers project underscored the importance of small-scale fisheries and revealed that catches by and employment in this sector tend to be underreported. An inventory of data collection systems made under the FAO FishCode–STF project showed that small-scale fisheries are not well covered. Their dispersed nature, the weak institutional capacity in many developing countries, and the traditional methods used make routine data collection cumbersome. Innovative sampling strategies are required. The main priority is a sample frame for small-scale fisheries. Sustainable strategies are most likely to be found outside the sector through population and agricultural household censuses and inside the sector through the direct involvement of fishers.

scholarly journals Remote biomass burning dominates southern West African air pollution during the monsoon

2019 ◽  
Vol 19 (24) ◽  
pp. 15217-15234 ◽  
Author(s):  
Sophie L. Haslett ◽  
Jonathan W. Taylor ◽  
Mathew Evans ◽  
Eleanor Morris ◽  
Bernhard Vogel ◽  
...  
Keyword(s):  
Air Pollution ◽  
West Africa ◽  
Atlantic Ocean ◽  
Biomass Burning ◽  
West African ◽  
Small Scale ◽  
High Background ◽  
Accumulation Mode ◽  
Aerosol Loading ◽  
Biomass Burning Aerosol

Abstract. Vast stretches of agricultural land in southern and central Africa are burnt between June and September each year, which releases large quantities of aerosol into the atmosphere. The resulting smoke plumes are carried west over the Atlantic Ocean at altitudes between 2 and 4 km. As only limited observational data in West Africa have existed until now, whether this pollution has an impact at lower altitudes has remained unclear. The Dynamics-aerosol-chemistry-cloud interactions in West Africa (DACCIWA) aircraft campaign took place in southern West Africa during June and July 2016, with the aim of observing gas and aerosol properties in the region in order to assess anthropogenic and other influences on the atmosphere. Results presented here show that a significant mass of aged accumulation mode aerosol was present in the southern West African monsoon layer, over both the ocean and the continent. A median dry aerosol concentration of 6.2 µg m−3 (standard temperature and pressure, STP) was observed over the Atlantic Ocean upwind of the major cities, with an interquartile range from 5.3 to 8.0 µg m−3. This concentration increased to a median of 11.1 µg m−3 (8.6 to 15.7 µg m−3) in the immediate outflow from cities. In the continental air mass away from the cities, the median aerosol loading was 7.5 µg m−3 (5.9 to 10.5 µg m−3). The accumulation mode aerosol population over land displayed similar chemical properties to the upstream population, which implies that upstream aerosol is a significant source of aerosol pollution over the continent. The upstream aerosol is found to have most likely originated from central and southern African biomass burning. This demonstrates that biomass burning plumes are being advected northwards, after being entrained into the monsoon layer over the eastern tropical Atlantic Ocean. It is shown observationally for the first time that they contribute up to 80 % to the regional aerosol loading in the monsoon layer over southern West Africa. Results from the COSMO-ART (Consortium for Small-scale Modeling – Aerosol and Reactive Trace gases) and GEOS-Chem models support this conclusion, showing that observed aerosol concentrations over the northern Atlantic Ocean can only be reproduced when the contribution of transported biomass burning aerosol is taken into account. As a result, the large and growing emissions from the coastal cities are overlaid on an already substantial aerosol background. Simulations using COSMO-ART show that cloud droplet number concentrations can increase by up to 27 % as a result of transported biomass burning aerosol. On a regional scale this renders cloud properties and precipitation less sensitive to future increases in anthropogenic emissions. In addition, such high background loadings will lead to greater pollution exposure for the large and growing population in southern West Africa. These results emphasise the importance of including aerosol from across country borders in the development of air pollution policies and interventions in regions such as West Africa.

The Role of Islam in the Abolition of Slavery and in the Development of British Capitalism

2012 ◽  
Vol 29 (1) ◽  
pp. 1-29
Author(s):  
Sultana Afroz
Keyword(s):  
World War Ii ◽  
West Africa ◽  
Large Scale ◽  
West Indian ◽  
Small Scale ◽  
British Colonialism ◽  
Political Unity ◽  
Transatlantic Trade ◽  
Slave Traders ◽  
European Trade

West Indian scholars have overlooked the role played by the Muslim leadership in West Africa in bringing an end to the transatlantic trade in Africans. The jihād movements in West Africa in the late eighteenth century gave political unity to West Africa challenging the collaboration of European trade in Africans with the pagan slave traders. West Indian historiography, while emphasizing European abolitionist movements, ignores the Islamic unity (tawhīd) of humankind, which brought together many ethnically heterogeneous enslaved African Muslims to successfully challenge the West Indian plantation system. The exploitation of the human resources and the immense wealth of the then Moghul India and Imperial China by British colonialism helped develop the British industrial capitalism, which controlled most of the world until the end of World War II. The security of the British industrial capitalist complex could no longer depend on the small-scale West Indian plantation economies but on the large-scale economies of Asia protected by the British imperial forces under the British imperial flag.

The Role of Islam in the Abolition of Slavery and in the Development of British Capitalism

2012 ◽  
Vol 29 (1) ◽  
pp. 1-29
Author(s):  
Sultana Afroz
Keyword(s):  
World War Ii ◽  
West Africa ◽  
Large Scale ◽  
West Indian ◽  
Small Scale ◽  
British Colonialism ◽  
Political Unity ◽  
Transatlantic Trade ◽  
Slave Traders ◽  
European Trade

West Indian scholars have overlooked the role played by the Muslim leadership in West Africa in bringing an end to the transatlantic trade in Africans. The jihād movements in West Africa in the late eighteenth century gave political unity to West Africa challenging the collaboration of European trade in Africans with the pagan slave traders. West Indian historiography, while emphasizing European abolitionist movements, ignores the Islamic unity (tawhīd) of humankind, which brought together many ethnically heterogeneous enslaved African Muslims to successfully challenge the West Indian plantation system. The exploitation of the human resources and the immense wealth of the then Moghul India and Imperial China by British colonialism helped develop the British industrial capitalism, which controlled most of the world until the end of World War II. The security of the British industrial capitalist complex could no longer depend on the small-scale West Indian plantation economies but on the large-scale economies of Asia protected by the British imperial forces under the British imperial flag.

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