1. Analytical gas sensing in the terahertz spectral rangeAndreja Abina, Uroš Puc, Mojca Jazbinšek, Aleksander Zidanšek, 2023, original scientific article Abstract: Exploiting the terahertz (THz) part of the electromagnetic spectrum is attracting attention in various scientific and applied disciplines worldwide. THz technology has also revealed its potential as an effective tool for gas analysis in astronomy, biomedicine and chemical analysis. Recently, it has also become important in environmental applications for monitoring hazardous and toxic gases in the atmosphere. This paper gives an overview of THz gas detection analytical methods for environmental and biomedical applications, starting with a brief introduction to THz technology and an explanation of the interaction of THz radiation with gaseous species and the atmosphere. The review focuses on several gaseous species and groups of air pollutants that have been or can be analysed by THz spectrometry. The review concludes that different but complementary THz detection methods allow unique detection, identification and quantification of gaseous and particulate air pollutants with high selectivity, specificity and sensitivity. THz detection methods also allow further technological improvements and open new application possibilities.
Keywords: terahertz spectroscopy, gas sensing, air pollution, environmental monitoring
Published in DKUM: 28.03.2024; Views: 205; Downloads: 18
 Full text (3,72 MB)
This document has many files! More... |
2. Reviewing the narrative concerning the impact of population growth in AfricaCocou Marius Mensah, 2019, original scientific article Abstract: This article discusses the topic of population growth in Africa, a recurring theme in the era of climate change and the fight against CO2 emissions. The African continent is full of essential raw materials and encompasses the youngest population in the world. There is no doubt concerning the significant role it will play in global affairs, at a time when the world population is ageing, according to the UN statistics. In recent years, many policymakers have highlighted the necessity to deal with overpopulation, provoking moral controversial and basic human rights abuses. This article, however, proposes an opposite argumentation based on fresh data and emphasises the opportunities and challenges to take on, as the author considers "overpopulation" as more of a challenge than a sentence to underdevelopment. Though the paper mentions different issues linked to overpopulation, such as migration crisis, ecological sustainability and the UN Sustainable Development Goals, it concludes with a reminder of the importance of international cooperation as a solution to global issues.
Keywords: global issues, impact of population growth, migration trends, international cooperation, pollution, African Union, European Union, UN sustainable development goals, environmental footprint
Published in DKUM: 15.01.2021; Views: 842; Downloads: 18
 Link to file |
3. Impact of objects of oil and gas branch on environment, means and methods of decrease in pollution of the atmosphere, hydrosphere and lithosphereVladimir Permyakov, Vitaly Parfenov, Sergei Alexandrov, Yuri Sivkov, Arthur Nikiforov, 2016, independent scientific component part or a chapter in a monograph Keywords: environmental impact, oil, gas, pollution, atmosphere, hydrosphere, lithosphere
Published in DKUM: 11.05.2018; Views: 1782; Downloads: 82
Full text (487,71 KB)
This document has many files! More... |
4. Infrastructure planning and environmental protection : case study of SlovakiaMarián Gogola, Daniela Durcanska, Marta Hocova, 2016, independent scientific component part or a chapter in a monograph Keywords: infrastructure planning, environmental protection, air pollution, transportation, traffic, emissions, Slovakia
Published in DKUM: 10.05.2018; Views: 8489; Downloads: 96
Full text (3,21 MB)
This document has many files! More... |
5. Environmental management & audit 4: Environmental assessment - featured articles : Tempus project Recoaud2016, scientific monograph Abstract: The present scientific monograph, entitled “Environmental management & audit“, is the result of three years’ work on an international project entitled “Environmental management in Russian companies – retraining courses for the sensibilization for and integration of Eco-Audit programs in corporate decision-making (RECOAUD)”. Within its more than 600 pages, the monograph features interesting texts written by 31 authors from the European Union and the Russian Federation, edited by dr. Borut Jereb, Darja Kukovič and dr. Daria Meyr.
The monograph “Environmental management & audit“ is composed of four books: “Scarcity and Introduction of Environmental Management”, “Management Systems”, “Controlling and Stakeholders”, and “Environmental Assessment” (Featured Articles). These four topics reflect the complexity, heterogeneity and multidisciplinary of the project Tempus RECOAUD.
The reader of the monograph gets a comprehensive overview of theoretical perspectives of environmental management and audit in the chosen areas. Furthermore, the monograph also highlights the results of research in the field of environmental management and audit as well as trends and challenges in the development of this field. Providing insight into theoretical and research findings, the monograph will prove useful to both practitioners and researchers in the field of environmental management and audit; it can also be used for study purposes.
Keywords: logistics, environment, climate change adaptation, sustainability, reverse logistics, life cycle assessment, environmental impact assessment, waste management, oil industry, gas industry, pollution
Published in DKUM: 09.05.2018; Views: 2257; Downloads: 135
Full text (5,51 MB)
This document has many files! More...
This document is also a collection of 9 documents! |
6. Application of elemental microanalysis to elucidate the role of spherites in the digestive gland of the helicid snail Chilostoma lefeburianaSaška Lipovšek Delakorda, Ilse Letofsky-Papst, Tone Novak, Manuela Giovannelli, Ferdinand Hofer, Maria Anna Pabst, 2008, original scientific article Abstract: In this case study we present an application of different analytical electron microscopic methods in biology, to elucidate their usefulness in such investigations. Using analytical electron microscopy, spherites in the digestive gland cells of the helicid snail Chilostoma lefeburiana were examined at three stages: just before the non-feeding period of over-wintering in November, in the middle of over-wintering in February and at its end in March. A detailed characterization of changes in the elemental composition of the spherites was characterized by a combination of transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDXS), electron energy-loss spectroscopy (EELS) and energy filtering TEM (EFTEM). During over-wintering, the spherites passed the following changes. Before over-wintering in November, they consisted of striking concentric layers of electron-dense and electron-lucent zones, while in February and March they showed clear empty zones between materials of different electron density. In November spherites, C, O, Ca, P, Cl, Fe, Si, Na, K, Mg and S were detected, whereas in February ones C, O, N, Cl, Si and S were found and only C, O, N, Si and Cl were detected in March spherites. It is suggested that the elements missing in February and March were used in different physiological processes during over-wintering, like (1) the maintenance of the appropriate elemental composition of the internal environment, (2) accumulation of non-toxic waste materials that cannot be metabolized and (3) avoiding potential intoxication by contamination with toxic metals.
Keywords: zoology, Chilostoma lefeburiana, snails, digestive gland, over-wintering, spherites, elemental analyses, environmental pollution, chemical structures
Published in DKUM: 07.06.2012; Views: 1912; Downloads: 96
Link to full text |
