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Dissertation
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Numerical Modeling and Characterization of Drying Process of Agricultural Products
(2021)
The main goal of this work was to experimentally characterize the hot air-drying process of agricultural products (Potato, Carrot, Tomato) and verify it with numerical solutions at single layer and industrial scale dryer using Comsol Multiphysics® 5.3.
Input parameters at single layer dryer effects on quality attributes were examined. Two strategies of drying were applied on batch dryer to examine the input effects on quality attributes. Constant input parameters strategy was designed by using central composite ...
Aufsatz
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The effect of transglutaminase on physicochemical, microstructural, and organoleptic properties of low fat karish cheese
(2022-04-15)
Karish cheese is considered to be one of the most traditional Egyptian cheeses. It is manufactured from low-fat milk. It can be a key part of a healthy diet, especially for the elderly and those suffering from obesity-related illnesses. Low-fat cheese such as karish cheese has the problem of crumbly texture characteristics, which is the main problem for cheesemakers. This research aimed to improve the texture of karish cheese using transglutaminase (TGase), and to study the effects on cheese physical, microstructural, ...
Aufsatz
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Technical efficiency of paddy farming in West Java: a combination of synthetic and organic fertilisers versus conventional farming
(2022-02-08)
In developing countries, agriculture’s burden is not just ensuring enough food for the people but also securing net income for the farmers to alleviate poverty and to conserve the environment at the same time. Consumption shift towards staples, particularly during economic crisis or pandemic, requires a policy that could make food growers respond to the demand appropriately. Initially, from soil science, an argument asserts that mixing organic and synthetic fertilisers can increase yield/productivity and be safe for ...
Aufsatz
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Valuing environmentally sustainable agriculture? Food and water concerns, production literacy, and consumption behaviours in rural-regional Australia
(2022-05-30)
Although Australia currently enjoys high food security, increasing climate change pressure on the planet’s direst land mass, governed by the least climate change mitigating legislators, makes this position increasingly tenuous amid increasingly globalised, industrial food production systems. This article presents primary data exploring the salience of food and water concerns compared with related knowledge affecting agricultural product consumption. Respondents to an online survey were drawn from employees at a large ...
Aufsatz
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The role of crop protection products of multinational brands for agricultural sustainability in the cotton-growing zone in Pakistan
(2022-01-22)
Despite the use of Bt (Bacillus thuringiensis) cotton in Pakistan, the country is still far behind in farm harvest per unit compared to other cotton-producing countries such as China and Turkey. Cotton is a pest-sensitive crop, and inappropriate crop protection products contribute to lower agricultural sustainability. This issue attracts additional attention in developing countries such as Pakistan, where generic formulation/sub-standard crop protection products are easily and abundantly available. However, the impact ...
Dissertation
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Training in virtuellen Feuerwehreinsätzen
(2022)
Im Zuge des digitalen Wandels und verdeutlicht durch die Corona‑Pandemie, ist allgemein ein steigender Bedarf an E‑Learning Lösungen für Aus‑ und Fortbildungszwecke zu beobachten. So ist auch die Feuerwehr in Deutschland daran interessiert, Präsenzzeiten an Ausbildungszentren effizienter zu gestalten und Freiwilligen Feuerwehren alternative Fortbildungsmöglichkeiten für mangelnde Ressourcen zur Verfügung zu stellen. Serious Games bieten die Möglichkeit Sachverhalte interaktiv sowie mittels Virtuelle Realität (VR) ...
Dissertation
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Development of a Preconditioning Scheme for Real Gases using Asymptotic Expansions
(2022)
Bei der Beschreibung von Strömungen wird klassischerweise zwischen inkompressiblen und kompressiblen Bereichen unterschieden. Während inkompressible Strömungen durch ein divergenzfreies Geschwindigkeitsfeld charakterisiert werden, sind kompressible Strömungsfelder durch Expansionsfächer, Kontaktunstetigkeiten und Stoßwellen gekennzeichnet. Die beiden Bereiche werden damit durch stark unterschiedliche Systeme partieller Differentialgleichungen beschrieben. Diese Unterscheidung zeigt sich auch in der numerischen ...
Dissertation
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Responses of Arnica montana L. and montane Nardus grasslands to climate change in Central German Uplands
(2022-02)
Species-rich montane Nardus grasslands and their characteristic and highly valued plant species arnica (Arnica montana L.) are two elements of low-intensively-used, species-rich mountain grassland in Central German Uplands. In times of present and future global change, new stressors, like those related to climate change, will come into action, and are predicted to lead to a further decline of Arnica montana and Nardus grasslands. This is of specific concern in lower mountain ranges, where species and habitats are ...
Dissertation
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Untersuchung von Sanierungsmaßnahmen zur Verbesserung des baulichen Wärmeschutzes bei Wohngebäuden unter Berücksichtigung der lokalen klimatischen Gegebenheiten Syriens
(2022)
Im Rahmen der vorliegenden Arbeit wurden die baulichen Sanierungsmaßnahmen an Bestandswohngebäuden in Syrien untersucht, um die entsprechenden Anforderungen an die außen- und innenliegenden Dämmmaßnahmen und Planungsempfehlungen stellen zu können, damit eine erfolgreiche Planung und Ausführung der Sanierungsmaßnahmen gewährleisten werden kann. Hierbei wurde das instationäre Simulationsverfahren Wufi-Pro und Wufi-2D zum Einsatz gebracht. Zur Durchführung der Simulationsberechnung wurden die realistischen Randbedingungen ...
Dissertation
![Open Access](/themes/Mirage2/images/Open_Access_logo_PLoS_transparent.svg)
Optimal control of a rate-independent system constrained to parameterized balanced viscosity solutions
(2022)
In this dissertation, we analyze an optimal control problem governed by a rate-independent system in an abstract infinite-dimensional setting. The rate-independent system is characterized by a nonconvex stored energy functional, which depends on time via a time-dependent external loading, and by a convex dissipation potential, which is assumed to be bounded and positively homogeneous of degree one.
The optimal control problem uses the external load as control variable and is constrained to normalized ...