Search
Now showing items 241-250 of 347
Aufsatz
Microcantilever Fracture Tests of α-Cr Containing NiAl Bond Coats
(2022-01-08)
MCrAlY bond coats are widely used as oxidation-resistant coatings on superalloys. The major phase is the thermally stable intermetallic β-NiAl phase. The addition of Cr increases the oxidation and corrosion resistance but leads to the formation of α-Cr precipitates. Both phases are brittle and limit the fracture toughness of these coatings. To study the influence of thermal exposure and the resulting changing chemical composition on the fracture properties, the fracture toughness of both phases is measured by notched ...
Aufsatz
Determination and Validation of Residual Stresses in CFRP/Metal Hybrid Components Using the Incremental Hole Drilling Method
(2020-09-21)
Lightweight materials contribute to an efficient decrease in fuel consumption in the automotive and aircraft industries. Hybrid components made of metal and carbon fiber-reinforced plastics (CFRP) have a high potential in lightweight applications due to their high strength-to-weight ratio. For cost-effective processing of hybrid materials, advanced manufacturing processes such as the prepreg-press-technology have been developed, in which the bonding between a metallic component and a fiber compound is exclusively ...
Aufsatz
Agroecological transition in Southern Benin: What challenges for more efficient vegetable farming systems?
(2022-10-18)
In Benin, agroecological intensification and agroecological transition of vegetable farming systems is an undeniable necessity for achieving the objectives of food and nutrition security while preserving natural resources, human and animal health. The present study analyses vegetable farming systems in southern Benin, to highlight bottlenecks and challenges in the process of an agroecological transition and intensification of these systems. Data were collected with questionnaires and interview guides through individual ...
Aufsatz
The politics of energy landscapes: the influence of local anti-wind initiatives on state policies in Saxony, Germany
(2020-01-23)
Background
In recent years, landscapes in many countries have been transformed by efforts to fight global warming, specifically the shift towards renewable energies such as wind power. This development has been met by growing opposition from local citizens and their initiatives. There is an ongoing debate about whether and how such protests have a real impact on the development of energy landscapes.
Methods
Drawing on the rare case of a state government scaling back ambitious targets for the expansion of renewables, ...
Aufsatz
The effect of the addition of pineapple residue (Ananas comosus L.) on texture, physicochemical properties, and sensory acceptability of the plant-based minced meatball
(2023-05-14)
This study aims to develop plant-based meat alternatives with unique textures by adding pineapple residue at four different ratios (0, 5, 10, 15, and 20% w/w). The developed products' textures, sensory characteristics, nutritional values, and consumer acceptance were all assessed. The results showed that an increase in the pineapple residue content caused lightness (L*), redness (a*), as well as yellowness (b*) to increase. The textural properties of the plant-based minced meatballs in this study were relatively lower ...
Aufsatz
Studiensituation und Studienabbruchsneigung in Corona-Zeiten. Ergebnisse einer lehramtsstudentischen Online-Reflexion
(2023-06)
In diesem Beitrag wird in den Blick genommen, wie Lehramtsstudierende der Universität Kassel ihre Studiensituation in den Jahren 2021-2023 einschätzen. Der Fokus liegt dabei einerseits auf ihrer Wahrnehmung der Studienbedingungen an der Hochschule sowie anderseits ihren Beziehungen zu anderen Hochschulangehörigen. Beide Bereiche sind wesentlich für Studienzufriedenheit, zeigten sich durch die Covid-19-Pandemie stark verändert und erhöhen bei einer negativen Wahrnehmung das Risiko eines Studienabbruchs. Die empirischen ...
Aufsatz
Optimization on the manufacturing process of fried instant corn noodle using response surface methodology
(2023-07-31)
Instant corn noodles can be manufactured using the air drying and frying process. The objective of this study was to determine the optimum process parameters and emulsifier concentration to produce instant corn noodles from 100% corn flour with relatively good quality characteristics using a cooking-forming single screw extruder. This study consisted of two stages, namely the determination of corn noodles with the fastest cooking time using emulsifier concentrations of 0, 0.5, 1, and 1.5% from the weight of corn ...
Aufsatz
Traditional Seafood Product Purchase Through E-Commerce: The Impact of Perceived Risk and Benefit to Consumers’ Intention to Buy
(2023-07-31)
Traditional seafood products in Indonesia are also very diverse, influenced by ethnicity and eating habits. However, the problem is the low level of consumption of seafood products in Indonesia. There is a limited number of traditional seafood products have entered the e-commerce due to the lack of knowledge about consumer demand. To boost the purchase of traditional seafood product, consumers’ perception need to be explored as it plays prominent role in a successful food product. The aims of this research are to ...
Aufsatz
Analysis of Food Consumption Patterns as a Step for Mapping Future Food Needs Based on the Potential of Local Food
(2023-07-31)
Muara Gembong Village, in Bekasi Regency, West Java is an area that has a variety of potential local food ingredients that can improve the welfare of the surrounding community. It is necessary to map the consumption and use of local food ingredients in the area so that it can be identified the type of food that needs to be developed as a strategy to improve food security in Muara Gembong village. One way to identify this is by analyzing the community's food consumption patterns. This study aims to analyze food ...
Aufsatz
Trade-off between carbon offset and economic benefit: Potential of cocoa-based agroforestry system implemented in voluntary carbon market
(2023-11-02)
Agroforestry systems (AFS) are a viable option for the mitigation of deforestation. Thus far AFS has been recognized and financed through the Voluntary Carbon Market (VCM) program; however, analysis of the potential carbon credit payment and productivity trade-off has rarely been conducted. This study aims to analyse the potential of cocoa-based AFS in terms of the trade-off of carbon accumulation and productivity in West Sumatra, Indonesia. The trade-off is shown through 20 years of financial analysis between the ...