Results 61 to 70 of about 334,480 (303)
Трьохсекторна модель «відкритої» тіньової економіки [PDF]
, 2010 Запропоновану раніше двохсекторну модель відкритої тіньової економіки узагальнено шляхом врахування третього сектору – неформальної економіки.
Yakub, E. +2 more
core
Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk +7 more
wiley +1 more source
Frontiers in Marine ScienceChina’s coastal marine economy, a key part of the national economy, exhibits complex temporal evolution and regional heterogeneity, posing challenges for accurate forecasting.
Zerong Wang, Zhijian Cai, Yao Li
doaj +1 more source
Optimal Sizing of Isolated Microgrid Containing Photovoltaic/Photothermal/Wind/Diesel/Battery
International Journal of Photoenergy, 2021 The establishment of isolated microgrid is of great significance in solving power supply problems in offshore islands or remote mountainous areas. Aiming at the isolated microgrid containing photovoltaic, photothermal, wind, diesel, and energy storage, a
Guo Zhao +5 more
doaj +1 more source
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Wanted Dead or Alive? The Relative Value of Reef Sharks as a Fishery and an Ecotourism Asset in Palau [PDF]
, 2011 Over the last 20 years, ecotourism to view and interact with marine megafauna has become increasingly popular (Higham and Lück 2008). Examples of this type of tourism include turtle and whale watching, snorkelling with seals and shark diving (Jacobson ...
D. Pannell +4 more
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Comprehensive Evaluation of Urban Low-carbon Economy Based on Grey Correlation [PDF]
Proceedings of the 2015 Conference on Informatization in Education, Management and Business, 2015 It founds a hierarchical index system for evaluating urban low-carbon economic development from four aspects, such as social system, economic system, technology system and environmental system. Paper proposes a comprehensive evaluation model based on gray correlation, screening each two strongly correlated indicators, eliminating redundancy and ...
Li Yan-zi, Xiong Xiao-yi
openaire +1 more source
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
, 1998 POLAND___Factory_Visits.pdf: 127 downloads, before Oct.
Clean Clothes Campaign
core +1 more source