Results 191 to 200 of about 1,987,304 (393)

Progress in Euclidean relativistic few-body quantum mechanics [PDF]

open access: yesarXiv, 2012
We discuss recent progress in the Euclidean formulation of relativistic few-body quantum mechanics.
arxiv  

Foreigners on the labour market in Poland [PDF]

open access: yes, 2016
The goal of the paper is the analysis of the scale and structure of the phenomenon of labour immigration in Poland after its accession to the European Union.
Balcerowicz-Szkutnik, M.   +2 more
core  

Impact of Transition Metals and Electrocatalyst Layer Thickness on the Pt‐Based Cathodes of Proton Exchange Membrane Fuel Cells – Do Multimetallic Electrocatalysts Necessarily Yield an Improved Performance?

open access: yesAdvanced Energy Materials, EarlyView.
Nonnoble transition‐metals (TMs) in PtCuNi/C catalysts have a dual influence in proton‐exchange membrane fuel cell cathode catalyst layer. While TMs act as a “sacrificial component” of PtCuNi/C, inhibiting Pt dissolution from the PtMx nanoparticles bearing the active sites, they promote the formation of separate catalysts and ionomer domains in the ...
Ricardo Sgarbi   +16 more
wiley   +1 more source

Factorization in high energy nucleus-nucleus collisions [PDF]

open access: yesarXiv, 2013
In this talk, we discuss the factorization of the logarithms of energy in the Color Glass Condensate framework.
arxiv  

Stringency and dissimilarity of Maximum Residue Levels affect bilateral agri‐food trade stability

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract Food standards are rising in both prevalence and stringency. They protect consumers and may enhance demand stability but also pose compliance challenges to producers, with ambiguous effects on the stability of trade relationships. We analyze the impact of importers' Maximum Residue Levels (MRLs) along with bilateral MRL dissimilarity between ...
Helena Engemann   +2 more
wiley   +1 more source

Generalized Poland-Scheraga denaturation model and two-dimensional renewal processes [PDF]

open access: yesarXiv, 2015
The Poland-Scheraga model describes the denaturation transition of two complementary - in particular, equally long - strands of DNA, and it has enjoyed a remarkable success both for quantitative modeling purposes and at a more theoretical level. The solvable character of the homogeneous version of the model is one of features to which its success is ...
arxiv  

Supercapacitors: An Emerging Energy Storage System

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This review explores the principles, advancements, and material innovations in supercapacitor technology, covering pseudocapacitors, double‐layer capacitors, electrolytes, and nanostructured materials like carbon nanotubes, MXenes, and graphene. It examines hybrid systems bridging capacitors and batteries, promising applications in wearable devices ...
Muhammad Faisal Iqbal   +7 more
wiley   +1 more source

Development Status and Future Prospects of Hydrogen Energy Technology: Production, Storage, and Cost Analysis

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen is an energy carrier, produced from renewable and nonrenewable resources. It can be stored in a variety of materials and transported to distant locations. This article reviews progress in hydrogen technology by looking at environmental and economic impact, cost analysis, and policy support at government level as way forward for bringing it to ...
Xuexue Pan   +5 more
wiley   +1 more source

Modeling the ASF (African Swine Fever) spread till summer 2017 and risk assessment for Poland [PDF]

open access: yesKatedra Matematyki Uniwersytetu Przyrodniczego we Wroclawiu,XLVII SEMINARIUM ZASTOSOWAN MATEMATYKI, Kobyla Gora 11 wrzesnia 2017, 2019
African Swine Fever (ASF) is viral infection which causes acute disease in domestic pigs and wild boar. Although the virus does not cause disease in humans, the impact it has on the economy, especially through trade and farming, is substantial. Recent rapid propagation of the (ASF) from East to West of Europe encouraged us to prepare risk assessment ...
arxiv  

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