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Hydrogen plays a vital role in decarbonizing the mobility sector. With the number of hydrogen vehicles expected to drastically increase, a network of refuelling stations needs to be built to keep up with the hydrogen demand. However, further research and development on hydrogen refuelling infrastructure, storage and standardization is required to overcome technical and economic barriers. Simulation tools can reduce time and costs during the design phase, but existing models do not fully support calculations of complete and arbitrary system layouts. Therefore, a flexible simulation toolbox for rapid investigations of hydrogen refuelling and extraction processes as well as development of refuelling infrastructure, vehicle tank systems and refuelling protocols for non-standardized applications was developed. Our model library, H2VPATT, comprises of typical components found in refuelling infrastructure. The key component is the hydrogen tank model. The simulation model was successfully validated with measurement data from refuelling tests of a 320 l type III tank. [Display omitted] • Development of a flexible and customizable tool for hydrogen filling/storage systems. • Model for simulation of custom refuelling protocols. • Model validation with experiments. [ABSTRACT FROM AUTHOR]

Engelke, J., Esser, K.J.K., Linnert, C., Mutterlose, J. and Wilmsen, M. 2016. The benthic macrofauna from the Lower Maastrichtian chalk of Kronsmoor (northern Germany, Saturn quarry): taxonomic outline and palaeoecologic implications. Acta Geologica Polonica, 66 (4), 671-694. Warszawa. The benthic macroinvertebrates of the Lower Maastrichtian chalk of Saturn quarry at Kronsmoor (northern Germany) have been studied taxonomically based on more than 1,000 specimens. Two successive benthic macrofossil assemblages were recognised: the lower interval in the upper part of the Kronsmoor Formation (Belemnella obtusa Zone) is characterized by low abundances of macroinvertebrates while the upper interval in the uppermost Kronsmoor and lowermost Hemmoor formations (lower to middle Belemnella sumensis Zone) shows a high macroinvertebrate abundance (eight times more than in the B. obtusa Zone) and a conspicuous dominance of brachiopods. The palaeoecological analysis of these two assemblages indicates the presence of eight different guilds, of which epifaunal suspension feeders (fixo-sessile and libero-sessile guilds), comprising approximately half of the trophic nucleus of the lower interval, increased to a dominant 86% in the upper interval, including a considerable proportion of rhynchonelliform brachiopods. It is tempting to relate this shift from the lower to the upper interval to an increase in nutrient supply and/or a shallowing of the depositional environment but further data including geochemical proxies are needed to fully understand the macrofossil distribution patterns in the Lower Maastrichtian of Kronsmoor. [ABSTRACT FROM AUTHOR]

Discusses that the international cooperation is a pre-requisite to pave the way for the economic development of poor countries. Re-orientation of economic policy by industrializing countries for the benefit of poor nations; Economic benefits to be gotten by poor countries through multilateral trades; Analysis pertaining to the implications of meso-policies and subsequent growth of poor countries.

Hydrogen plays a pivotal role in transitioning to CO 2 -free energy systems, yet challenges regarding costs and sourcing persist in supplying Europe with renewable hydrogen. Our paper proposes a simulation-based approach to determine cost-optimal combinations of electrolyser power and renewable peak power for off-grid hydrogen production, considering location and energy source dependencies. Key findings include easy estimation of Levelized Costs of Hydrogen (LCOH) and optimal plant sizing based on the regional energy yield and source. Regional investment risks influence the LCOH by 7.9 % per 1 % change of the Weighted Average Cost of Capital. In Central Europe (Austria), hydrogen production costs range from 7.4 €/kg to 8.6 €/kg, whereas regions like Chile exhibit cheaper costs at 5.1 €/kg to 6.8 €/kg. Despite the favourable energy yields in regions like Chile or the UAE, domestically produced hydrogen can be cost-competitive when location-specific risks and transport costs are taken into account. This underlines the critical role of domestic hydrogen production and cost-effective hydrogen transport for Europe's future hydrogen supply. [Display omitted] • The cost-optimal plant sizing for off-grid hydrogen production was identified. • The site-specific renewable energy yield is an indication of the expected LCOH. • Investment risk and H 2 transport are crucial to the cost-efficient H 2 supply. • Transporting H 2 by ship is more cost-intensive than transporting it by pipeline. [ABSTRACT FROM AUTHOR]

Presents an analysis of the Value Increase Process at Mannesmann AG. Composition of the main performance measure within the company; Other performance measures used for fast-growing companies.