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Aufsatz
Adoption and effectiveness of hermetic storage bags to reduce staple food postharvest loss for sustainability in the Ejura-Sekyedumase Municipality, Ghana
(2022-07-31)
Postharvest loss is a major problem facing agricultural households in the global south. It is in this context that the introduction of hermetic storage bags is viewed by many as a key solution to averting postharvest loss, especially for grains which are essential to food security. While there have been policy efforts to increase the availability of hermetic storage bags for farmers, little is known regarding the extent of its adoption and effectiveness in reducing grain loss. This study fills this empirical vacuum ...
Aufsatz
Horsegram [Macrotyloma uniflorum]: an underutilized pulse crop as a sustainable plant-based protein
(2022-07-31)
The demand of consumers for plant-based protein is high and is anticipated to increase in the future due to various underlying health benefits. Moreover, the production of high-quality animal protein globally results in a challenging situation for the sustainability of the environment. Contemporary, to find new alternative protein sources, underutilized legumes are given more attention to meet the ever-increasing requirement for vegetable protein.One of the indigenous underutilized legumes is Horsegram (Macrotyloma ...
Zeitschrift
Vol. 10 No. 4 (2022)
(Specialized Partnerships in Sustainable Food Systems and Food Sovereignty, Faculty of Organic Agricultural Sciences, the University of Kassel, Germany and the Federation of German Scientists (VDW), 2022-08-31)
Masterarbeit
Simulative Research on a Modified VSM Control Scheme for Respecting DC-Side Active-Power Limitations
(2022)
This thesis presents and examines a novel approach to modify the active-power behaviour of a generic virtual synchronous machine (VSM) in order to respect DC-side active-power limitations of converter-coupled generation and loads, thereby enabling them to participate in instantaneous reserve without hardware reinforcements.
A modification to the VSM control is suggested, which consists of a ∆P feedback loop and a dynamic adaptation of the virtual impedance Xvirt. These mechanisms enable the VSM to have a RoCoF-dependent ...
Aufsatz
Sustainability Assessment for Asparagus Farms that Work with a Community-Supported Agriculture Model in Turkey
(2022-07-31)
Due to the diversified nature of agricultural systems, it is difficult to handle the sustainability aspects of different farming practices. With an intention to evaluate the sustainability of the community-supported agriculture (CSA) model in Turkey, the current study focuses on asparagus farms and designs farm-specific sustainability indicators that would be helpful for the farmers. The framework developed for this purpose consists of 20 environmental, 8 economic, and 17 social sustainability indicators derived and ...
Aufsatz
Icing the Cake: A Lifestyle-based Benefit and Preference Analysis on Online Grocery Shopping
(2022-07-31)
Germany has not kept pace with the global development of online grocery shopping (OGS) and despite a pandemic-related increase remains on a moderate level. This phenomenon may reflect infrastructural benefits of stationary retailing, personal and household preferences, and perceptions of OGS services. To this end, this study investigates the determinants of OGS benefit perception addressing the interconnection between personal and household benefits and situational conditions based on qualitative ...
Aufsatz
Rural farmers’ learning of weed management methods in Malaysia
(2022-08-31)
Malim Nawar in Kampar District, Malaysia, is a potential major production site for modern high-technology farms by 2030. To achieve this, a significant increase in intensive agricultural activities and weed management practices is required. To develop strategies and achieve the goals of sustainable agriculture, the present study used a semi-structured questionnaire survey to assess farmers’ perception of weeds, their sources of information, and their reasons for willingness or unwillingness to adopt non-chemical ...
Dissertation
Entwicklung eines Nanospektrometer-Demonstrators für den sichtbaren Spektralbereich
(2022)
Ein miniaturisiertes optisches Spektrometer auf Basis eines Fabry-Pérot-Filter-Arrays wird für den sichtbaren Spektralbereich als Demonstrator realisiert. Hierfür wird ein FP-Filter-Array mit einem optischen Bandpass-Filter in eine Graustufen-CCD-Kamera integriert und ein Algorithmus zur Signalverarbeitung implementiert. Die Kalibrierung des Spektrometers wird experimentell mit Hilfe einer durchstimmbaren Lichtquelle durchgeführt, die in dieser Arbeit konstruiert und verifiziert wird. Die Bezeichnung des Spektrometers ...
Dissertation
Vergleichende phylogeographische und populationsgenetische Untersuchungen an der Pionierbaumgattung Macaranga (Euphorbiaceae) in Sundaland
(2022)
Die vorliegende Arbeit beschäftigt sich mit der Phylogeographie und Populationsgenetik der Pionierbaumgattung Macaranga in Sundaland, einer Region, die die Großen Sundainseln Sumatra, Borneo, Java und die malaiische Halbinsel umfasst. Eine Vielzahl der 300 in dieser Gattung enthaltenen Arten sind Wiederbesiedler gestörter Areale und sind daher in Sekundärwaldstrukturen besonders häufig. Im Rahmen dieser Dissertation wurden Studien in ganz Sundaland zu den sechs Arten M. tanarius (Tanarius-Artengruppe), M. gigantea, ...