Results 81 to 90 of about 1,291 (196)
Wear Analysis of 3D-Printed Spur and Herringbone Gears Used in Automated Retail Kiosks Based on Computer Vision and Statistical Methods. [PDF]
Bryła J +5 more
europepmc +1 more source
Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment
ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley +1 more source
Kierunek: RODOS w pandemii. O poszukiwaniu swojego miejsca na Ziemi, życiu bliżej natury
Artykuł traktuje o popularności rodzinnych ogródków działkowych (ROD) i działek poza miastem, szczególnie w okresie pandemii Covid-19. Przybliża ideę i historię powstania ROD, będących namiastką wsi dla mieszkańców miast.
Małgorzata Meszczyńska +1 more
doaj +1 more source
Sequential Smoothing Treatment of Glass Workpieces Cut by Abrasive Water Jet. [PDF]
Sutowska M +2 more
europepmc +1 more source
Moose indifferent to canopy loss from forest disturbance by bark beetles
Moose showed strikingly similar patterns of habitat selection before and after widespread forest disturbance following an infestation of bark beetles. Our findings indicate that beetle‐kill does not appreciably alter habitat quality for moose and highlight the importance of riparian areas in sustaining moose as they contend with changing forests ...
Alexander B. May +5 more
wiley +1 more source
Heavy metals in lake surface sediments in protected areas in Poland: concentration, pollution, ecological risk, sources and spatial distribution. [PDF]
Sojka M +4 more
europepmc +1 more source
ABSTRACT Land degradation poses significant challenges to maintaining food–water–energy (FWE) security, particularly in rapidly urbanizing regions. The ecosystem services (ES) related to FWE are critical for sustainable regional development. Yet, rapid urbanization in the Beijing–Tianjin–Hebei region has altered land use and ecological patterns ...
Ke Yang, Qi Han, Dujuan Yang
wiley +1 more source
ABSTRACT Balancing ecosystem‐service supply and demand is central to understanding both the natural and social dimensions of ecosystem services and to enhancing human well‐beings. Concurrently, collaborative efforts are underway to improve multiple ecosystem services, including the promotion of carbon neutrality and water purification (WP) within basin
Jing Cheng +5 more
wiley +1 more source
By refining grains and additions of strengthening elements, mechanical properties of electro‐conductive copper can be increased. Fine‐grained coper‐graphene composites were directly consolidated from original powders by rotary swaging to achieve rods with enhanced mechanical properties and electric conductivity of up to 96% international annealed ...
L. Kunčická +4 more
wiley +1 more source
Jak się moja wieś „urbanizowała”
The article presents the demographic-sociological effects brought by the change of status of the town – earlier a village – Mszana Dolna when it received the municipal charter. The process of renaming the town’s streets is described in detail.
Józefa Kobylińska
doaj

