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124
result(s) for
"Reiss, Matthias"
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Method to Model the Environmental Impacts of Aircraft Cabin Configurations during the Operational Phase
by
Freitag, Michael
,
Arenz, Michael
,
Reiß, Matthias
in
Air quality management
,
Aircraft cabins
,
Aircraft industry
2023
The entire aircraft industry is facing major challenges due to the formulated targets to reduce environmental emissions. For decision-makers, it is therefore of great importance to be able to compare the environmental impact of aircrafts. This includes the impact assessment of different aircraft-cabin configurations. Based on this motivation, this paper proposes a dynamic method for calculating those environmental impacts. To ensure a straightforward application, the method allows for the cabin configuration with the main cabin components. In addition, a specific mission profile can be defined and is considered in the calculations. The method follows the standardized life-cycle assessment framework. The first application of the method showed that there were large differences in the environmental impacts depending on the cabin configuration and that airlines can contribute to the achievement of sustainability goals with optimized cabin layouts.
Journal Article
Individualisation of Inflight Catering Meals—An Automation Concept for Integrating Pre-Ordered Meals during the Flight for All Passengers
by
Mortensen Ernits, Rafael
,
Freitag, Michael
,
Bauer, Michael
in
Air transportation
,
Air travel
,
Aircraft
2022
Inflight catering services are crucial for air travel. Airlines provide food and beverages to the passengers during the flight with different options depending on, e.g., the flying class, distance, and type of service. Our contribution outlines previous efforts to optimise the inflight catering processes and highlights the possibilities to individualise the current services. Individualisation is a growing trend and may challenge the processes that are possibly not wholly prepared to deliver a customised meal for each passenger onboard the aircraft. We present our passenger survey which confirms the demand for the individualisation of inflight meals; we explored which dimensions can be supported by incorporating automation. We performed an analysis of the current inflight catering process for developing automation concepts. Subsequently, an automation concept for the individualisation of inflight meals through pre-ordering is introduced, followed by an evaluation scenario. Within the evaluation, it was possible to consider the feasibility of the individualisation of inflight catering meals and to deliver requirements for the further development of automated services.
Journal Article
Controlling Sex in Captivity
2018
Controlling Sex in Captivity is the first book to examine the nature, extent and impact of the sexual activities of Axis prisoners of war in the United States during the Second World War. Historians have so far interpreted the interactions between captors and captives in America as the beginning of the post-war friendship between the United States, Germany and Italy. Matthias Reiss argues that this paradigm is too simplistic. Widespread fraternisation also led to sexual relationships which created significant negative publicity, and some Axis POWs got caught up in the U.S. Army’s new campaign against homosexuals. By focusing on the fight against fraternisation and same-sex activities, this study treads new ground. It stresses that contact between captors and captives was often loaded with conflict and influenced by perceptions of gender and race. It highlights the transnational impact of fraternisation and argues that the prisoners’ sojourn in the United States also influenced American society by fuelling a growing concern about social disintegration and sexual deviancy, which eventually triggered a conservative backlash after the war.
Method for an accelerated reproducible calcite-layering of potable water systems to validate decalcification procedures
by
Bendinger, Bernd
,
Becker, Ole
,
Flashaar, Sebastian
in
Ambient temperature
,
Aviation
,
Calcification
2017
This article describes a method for an accelerated, controlled and reproducible build-up of limescale in potable water systems. The concept of this method is to systematically generate water with a high calcium carbonate precipitation potential (CCPP) by CO2-enrichment, hardening with CaCO3 followed by CO2-desorption. Water with a CCPP of about 100 mg/L CaCO3 led to the intended calcification on inner steel tube surfaces in a simplified test plant. The limescale built-up was performed at ambient temperature. The procedure is an enabler for validation, verification and comparison of both the efficiency of decalcification methods, as well as scale-preventing methods under comparable and defined conditions. An economical and time efficient calcification method has been developed that provides solid calcite deposits of reproducible thickness and characteristics. The method can be used for studies with all water-carrying systems in household, public transportation or industrial applications.
Journal Article
SOLIDARITY AMONG \FELLOW SUFFERERS\: AFRICAN AMERICANS AND GERMAN PRISONERS OF WAR IN THE UNITED STATES DURING WORLD WAR II
Reiss examines African American and German prisoner of war relations during World War II with regard to socioeconomic's and gender.
Journal Article
The Importance of Being Men: The Afrika-Korps in American Captivity
2012
Around 135,000 German soldiers captured by the Allies in North Africa in May 1943 were subsequently brought to the United States and interned there until 1946. These men, which included the members of the famous German Afrika-Korps, were widely regarded and admired as elite masculine soldiers by contemporary Americans and are still often portrayed in this way in academic and popular publications. This article argues that the German prisoners used several strategies to successfully maintain their masculine-soldierly image behind barbed wire, and that doing so provided them with concrete benefits. It challenges the growing scholarly consensus that captivity is usually an emasculating experience and highlights the importance of gender as an analytical category in prisoners of war studies. It also argues that historians need to pay greater attention to the agency prisoners of war were sometimes able to exercise in captivity. The article concludes that the German prisoners' continuous performance of a soldierly-masculine identity allowed them to build bridges to their captors long before the end of the war, and thereby contributed to paving the way for the rapid reintegration of the Federal Republic of Germany into the Western world after 1945.
Journal Article