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Influence of H2O2 and O3 on PGM Extraction from Used Car Catalysts [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Catalytic converters contain the catalytic substance in their structure, which is a mixture of Platinum Group Metals (PGMs). The prices of these metals and a growing demand for them in the market, make it necessary to recycle spent catalytic converters ...
A. Fornalczyk   +3 more
doaj   +1 more source

Possible Impact of Risk Management Strategies with Farm Model on a Mixed Farm Type

open access: yesBusiness Systems Research, 2022
Background: Farm-level models have become an important tool for agricultural economists as there is a growing demand for microsimulation and analysis of farms at the individual level.
Brečko Jure, Žgajnar Jaka
doaj   +1 more source

Innovation in tourism as a model of recovery in the postpandemic period

open access: yesECONOMICS, 2022
The COVID-19 virus pandemic has influenced tourism policy makers to change their decisions and management methods due to the new challenging situation.
Ratković Rade   +2 more
doaj   +1 more source

Innovative Determinants of the Investment Attractiveness of a Country: The Case of Ukraine

open access: yesMarketing of Scientific and Research Organizations, 2022
The study is devoted to the peculiarities of the investment attractiveness of a country in conditions of uncertainty. The article generalises the scientific approaches to the definition of investment attractiveness.
Gavrysh Oleg   +2 more
doaj   +1 more source

On some analogies between one-criterion decision making under uncertainty and multi-criteria decision making under certainty

open access: yesEconomics and Business Review, 2021
One-criterion decision making under uncertainty (1-DM/U) is related to situations in which the decision maker (DM) evaluates the alternatives on the basis of one objective, but e.g.
Gaspars-Wieloch Helena
doaj   +1 more source

Determination of O3 and N2O Components in Atmospheric Pressure Dielectric Barrier Discharge Plasma Based on Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2023
Atmospheric dielectric barrier discharge (DBD) plasma has a broad application prospect in wastewater treatment. O3 and N2O are important components of atmospheric plasma, and are affected by many factors.
ZHANG Teng-fei;WEN Ming;HUANG Long-cheng;FENG Gao-ping;WANG Dian-kai;WEI Kang
doaj   +1 more source

O3 highlights [PDF]

open access: yesNature Reviews Physics, 2020
As the third LIGO-Virgo operating run (O3) finishes earlier than planned owing to the COVID-19 pandemic, we look at the ups and down of the past 12 months.
openaire   +2 more sources

Air pollution and hospital admission in patients with chronic obstructive pulmonary disease in Tehran, Iran [PDF]

open access: yesJournal of Emergency Practice and Trauma, 2016
Objective: There are many communities at risk by a series of air pollution episodes. Tehran is one of the most polluted cities in the world. The presence of one or more air pollutants with a certain concentration in a particular period of time can ...
Hasan Amiri   +5 more
doaj   +1 more source

Digital Business Incubators and Digital Entrepreneurship: The case of Digital Incubation Center in Qatar

open access: yesCroatian Review of Economic, Business and Social Statistics, 2023
This study examines the role of digital business incubators, focusing specifically on the Qatar Digital Incubation Center (DIC), in fostering digital entrepreneurship.
Sonia Chetouane, Hania Chetouane
doaj   +1 more source

2005-2017 Ozone trends and potential benefits of local measures as deduced from air quality measurements in the north of the Barcelona metropolitan area [PDF]

open access: yes, 2019
We analyzed 2005–2017 data sets on ozone (O3) concentrations in an area (the Vic Plain) frequently affected by the atmospheric plume northward transport of the Barcelona metropolitan area (BMA), the atmospheric basin of Spain recording the highest number
Alastuey, Andres   +5 more
core   +3 more sources

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