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Now showing items 31-40 of 97
Aufsatz
Rainfall erosivity, soil erodibility and natural water erosion potential in the Huambo region, Angola
(2021-12-06)
The use of erosion assessment methods is critical for the sustainability of land use in tropical and subtropical regions, especially in countries lacking national information on soil erosion development, which is the case of Angola. This study aimed to evaluate the rainfall erosivity (R), soil erodibility (K), soil loss tolerance (T) and natural erosion potential (NEP) in Huambo (Angola). The R value estimated for a 25-year period was 7463 MJ·mm·ha-¹·h-¹·y-¹. K values estimated from 25 soil profiles, described in the ...
Aufsatz
Significado y efectos de sentido. El gérondif francés en el contexto románico
(2021)
En las lenguas románicas una función central de los gerundios consiste en crear vínculos o junciones (Raible 1992) entre acciones diversas en el marco oracional. El concepto de junción implica que dos acciones –la actividad expresada por el gerundio y la actividad de la oración matriz– se agrupan para formar una unidad estructurada. El punto de partida de nuestro estudio es el análisis del gérondif en francés, cuyo perfil semántico-pragmático se elabora en primer lugar y constituye la base de un estudio contrastivo ...
Aufsatz
Determinants of Willingness to Pay (WTP) for organic fertiliser: a case of smallholder potato farmers in KwaZulu-Natal, South Africa
(2021-12-01)
The South African smallholder sector is characterised by relatively low productivity due to persistent deterioration in soil fertility owing to declining organic matter and other essential soil nutrients. Consequently, adoption of sustainable agricultural inputs like organic fertiliser is essential. Although there is sufficient advocacy in the adoption of organic fertiliser, the economic linkage between farmers' socioeconomic factors and willingness to pay (WTP) remains under-explored. This study investigated the ...
Aufsatz
Drivers of adaptation to climate change in vulnerable farming communities: a micro analysis of rice farmers in Ndop, Cameroon
(2021-11-04)
Farmers in developing economies often struggle to adapt to climate change and their decisions to adapt usually hinges on perception and prevailing socio-economic factors. This study examines factors controlling farmers’ decision to adapt to climate change and evaluate the impact of such decisions on farm output. Using primary data from 138 rice farming households in Ndop-Cameroon, we employ the probit model with endogenous switching regression to investigate the impact of the farmers’ adaptation decisions on output. ...
Aufsatz
Influence of Microstructure and Defects on Mechanical Properties of AISI H13 Manufactured by Electron Beam Powder Bed Fusion
(2021-08-04)
Electron beam powder bed fusion (E-PBF) is a well-known additive manufacturing process. Components are realized based on layer-by-layer melting of metal powder. Due to the high degree of design freedom, additive manufacturing came into focus of tooling industry, especially for tools with sophisticated internal cooling channels. The present work focuses on the relationships between processing, microstructure evolution, chemical composition and mechanical properties of a high alloyed tool steel AISI H13 (1.2344, ...
Aufsatz
Influencing factors of adopting solar irrigation technology and its impact on farmers’ livelihood. A case study in Bangladesh
(2021-12-15)
Sustainable irrigation access is considered critical for agricultural growth in Bangladesh, which vindicates the food and livelihood security. Solar powered irrigation system had emerged as promising technology to make sustainable irrigation in Bangladesh. This study examines the factors affecting the adoption of solar powered irrigation system and the impact of this technology on livelihood of farmer. To conduct this analysis, data were collected from Meherpur district of Bangladesh. Simple random sampling technique ...
Aufsatz
A systematic literature review exploring uncertainty management and sustainability outcomes in circular supply chains
(2021)
The circular economy (CE) has inspired the emergence of circular supply chains (CSCs) to reduce the environmental impacts of linear production systems. However, the transition to CSCs faces numerous challenges and uncertainties, which in turn impact the sustainability performance of CSCs. Following a systematic review process, this paper aims to identify the uncertainties that CSCs entail and the uncertainty management strategies which can be used to mitigate them to enhance their sustainability performance. A ...
Aufsatz
Farmers' perceptions on climate change and adaptation strategies in Yendi Municipality, Ghana
(2021-11-29)
It is common to hear and read about climate change in literature, media and interpersonal discussions among farmers and environmental groups. Farmers understanding of climate change differ in the midst of these discussions because of individual experiences and perceptions after many years of farming. The rainfall is declining and the temperature is rising are the common perceptions farmers hold on climate change which they see as adversely affecting agriculture. In moments of such adversity, farmers think about what ...
Aufsatz
Application of check-all-that-apply (CATA) in sensory profile assessment of arabica dark roast and black pepper mixed coffee
(2021-11-29)
Black pepper coffee is one of the developing innovations in Bangka Belitung Province, Indonesia. This study aimed to assess black pepper coffee's sensory profile using the CATA (check-all-that-apply) rapid analysis method and find the formula and brewing technique most consumers liked. The study consisted of two stages: determining the sensory attributes of black pepper coffee and taking sensory data from coffee consumers with coffee and black pepper powder ratios (98:2; 96:4; and 94:6) and brewing methods (cold brew, ...
Aufsatz
Living and Planning on the Edge: Unravelling Conflict and Claim-Making in Peri-Urban Lahore, Pakistan
(2021-05-25)
In Lahore, Pakistan’s second largest city, high population growth rates, decades of rural-urban migration, and rampant land and real-estate speculation have contributed to the rapid urbanization of peri-urban land and the engulfing of pre-existing rural settlements. Lahore’s spatial transformation goes hand in hand with an increasingly complex urban governance framework. Historically shaped by colonial planning institutions and decades of political instability as power alternated between military and civilian regimes, ...