Results 1 to 10 of about 146,964 (246)

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

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

Environmental Health Risk Assessment of Air Pollutants in Online Motorcycle Taxi Drivers in the Special Capital Region of Jakarta

open access: yesJurnal Kesehatan Lingkungan, 2022
Introduction: Online motorcycle taxi drivers spend most of their time outside as either driving or waiting for their customers. Therefore, chances of exposure to various air pollutants are higher and may cause various health problems, especially the ...
Meithyra Melviana Simatupang   +3 more
doaj   +1 more source

Assessing Hydrocarbon Removal from Petroleum Hydrocarbon-containing Effluent using UV/O3 Advanced Oxidation [PDF]

open access: yesمحیط زیست و مهندسی آب, 2018
The purpose of this study was to experimentally investigate the treatment of petroleum hydrocarbons-contaminated wastewater using UV/O3 method. To predict the degree of pollutant destruction, the initial concentrations of O3 and pollutant, pH, solution ...
Maral Rashidi Fard, Majid Amiri
doaj   +1 more source

Stakeholder-accountability model for artificial intelligence projects

open access: yesJournal of Economics and Management, 2022
Aim/purpose – This research presents a conceptual stakeholder accountability model for mapping the project actors to the conduct for which they should be held accountable in artificial intelligence (AI) projects. AI projects differ from other projects in
Miller Gloria J.
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

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