Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 6 de 6
Filter
1.
IOP Conference Series Earth and Environmental Science ; 1189(1):011001, 2023.
Article in English | ProQuest Central | ID: covidwho-20231601

ABSTRACT

The title of the ConferenceXXII Conference of PhD Students and Young Scientists "Interdisciplinary topics in mining and geology”The location and the date of the conferencevirtual event – online conference, June 29th to July 1st, 2022 in Wrocław, PolandXXIInd Conference of PhD Students and Young Scientists "Interdisciplinary topics in mining and geology” continues a series of events that started in 2000 at Wrocław University of Science and Technology. Scientific programme of the Conference focuses on four thematic panels:1. Mining Engineering: sustainable development, digitalisation in mining, problems of securing, protecting and using remnants of old mining works, underground mining, opencast mining, mineral processing, waste management, mining machinery, mine transport, economics in mining, mining aeronautics, ventilation and air conditioning in mines,2. Earth and Space Sciences: geology, hydrogeology, environmental protection, extraterrestrial resources, groundwater and medicinal waters, engineering and environmental protection, geotourism,3. Geoengineering: environmental protection, applied geotechnics, rock and soil mechanics, geohazards,4. Geoinformation: mining geodesy, GIS, photogrammetry and remote sensing, geodata modeling and analysis.The XXII Conference of PhD Students and Young Scientists was held as a virtual event, that is as a virtual, online conference in real-time. The reason why the Organizing Committee decided to change the traditional formula of the event to online formula was related to the concern for the health of the participants due to the COVID-19 epidemic.The XXII Conference of PhD Students and Young Scientists took place from June 29th to July 1st, 2022 in Wroclaw, Poland. That is the organizers worked and managed the event from the Wrocław University of Science and Technology Geocentre building. Because the conference focused on four thematic panels, four different special opening lectures were delivered by wellknown scientists- Professor Jan Zalasiewicz (University of Leicester, England)- Associate Professor Artur Krawczyk (AGH University of Science and Technology, Poland)- Professor Biljana Kovacević-Zelić (University of Zagreb, Croatia)- Assistant Professor Eduard Kan (Tashkent Institute of Irrigation and Agricultural Mechanizations Engineers, Uzbekistan).The Conference was divided into 8 oral sessions (with 33 presentations) and 1 poster session (with 33 posters). The amount of time provided to one presentation was 15 minutes, after presentation there was 5 minutes available for discussion. The poster session was available throughout the event, and the posters were available for online viewing on the Conference's website with the possibility of make discussion and ask questions in real time via zoom meeting application as well. Every day of the Conference one "virtual coffee break” was devoted for discussion between participants and question and answer session for the Organizers.There were 96 registered participants from 13 countries. The online XXII Conference of PhD Students and Young Scientists was conducted using the Zoom meeting platform with commemorative screen shots taken. By tradition two competitions, for the best oral presentation and for the best poster were held. The award for the best oral presentation was given ex aequo to Julia Tiganj (TH Georg Agricola University of Applied Sciences, Germany) for the presentation entitled Post-mining goes international: hurdles to climate neutrality using the example of China and Oksana Khomiak, Jörg Benndorf (TU Bergakademie Freiberg, Germany) for the presentation entitled Spectral analysis of ore hyperspectral images at different stages of the mining value chain, whereas the best poster was awarded to Adam Wróblewski, Jacek Wodecki, Paweł Trybała, Radosław Zimroz (Wrocław University of Science and technology, Poland) for the poster entitled Large underground structures geometry evaluation based on point cloud data analysis.List of Scientific Committee, Organizing Committee, Editorial Team are available i this pdf.

2.
Acta Montanistica Slovaca ; 27(1):190-200, 2022.
Article in English | Web of Science | ID: covidwho-1897369

ABSTRACT

Mineral resources form the basis of production in the metallurgical, electrical, chemical, construction, ceramic and glass industries, as well as in other industries. However, they are still non-renewable and depletable raw material resources, which also have restrictive uses due to their uneven geological and geographical distribution. Manufacturing and construction in Europe are largely dependent on the extraction of non-energy raw materials in terms of basic raw materials. This fact is further emphasized by the related sectors, which depend on a stable supply of raw materials. But building tomorrow's economy also means we need to take care of our environment today. Therefore, raw materials need to be mined in such a way that we protect the natural environment in order to ensure sustainability. In particular, the current time, but also the historically emerging geopolitical strife in the world or the COVID-19 pandemic prove, that raw materials are the driving force of many countries. Therefore, at the end of these new events, but also in view of the fourth industrial revolution, it is necessary, at the same time desirable, to look for new alternatives, possibilities and sources of raw materials in non-traditional areas. Such are waste, until now unused remnants of old mining activities, or the search for completely new materials. Innovation is a fundamental concept that is increasingly linked to the field of raw materials, as well as with many countries that are characterized by a high level of innovation activity. Therefore, in the article we focused on an extremely current topic, the analysis of the innovation potential of OECD countries in connection with the level of Construction minerals consumption.

3.
Acta Montanistica Slovaca ; 27(1):135-151, 2022.
Article in English | Web of Science | ID: covidwho-1897368

ABSTRACT

The objective of the paper was to evaluate the mutual relationship of copper and zinc prices between 2011 and 2021 and to predict their future prices until the year 2030. For this purpose, the following methods were used: regression of neural structures in TIBCO's Statistica software, version 13.0, time-series smoothing by means of multilayer perceptron network, graphical representation, Pearson correlation coefficient, and logical judgment. According to the prediction, the copper price will decrease slightly compared to the preceding years. In 2026, it is expected to stabilize at USD 610/t until the year 2030. Zinc price is expected to increase slightly until the end of the year 2030 when the resulting predicted price is USD 410/t. Pearson correlation coefficient of copper and zinc achieves the approximate value of 0.65. The results thus confirm the fact that these commodities are not perfect complements. First, the mutual relationship of the two commodities indicates that the price of zinc is pushed up mainly by the copper price. On the contrary, the copper price is pushed down by the price of zinc. There is a price convergence between the two commodities. The future development of copper and zinc prices is not subject to unpredictable events, such as a political situation or the aforementioned COVID-19 pandemic. Such a long-term prediction might thus not provide an objective result.

4.
Kompleksnoe Ispolzovanie Mineralnogo Syra ; - (1):75-87, 2022.
Article in English | Web of Science | ID: covidwho-1716439

ABSTRACT

This research aims to test the effect of the kit Programmable Logic Controller (PLC) on the achievement of vocational school students' competencies in electrical motor control courses for form 3 students in Aceh, Indonesia. Constructivist theory and Bloom's Taxonomy are referenced in this study in relation to learning. While the ADDIE model is used in relation to product development. This study used a quasi-experimental design with pre-and post-tests. The population (N = 333) in this study was level 3 vocational students in Aceh, Indonesia. The number of samples was 98 people, consisting of the experimental group (n = 50) and the control group (n = 48) selected by cluster random technique. The instruments used in this study included pre-and post-test interview protocols. The values of the KR20 reliability coefficient of the question items on the knowledge aspect were 0.97 and 0.81 on the skills aspect. The results of the descriptive analysis found that the experimental group (mean = 64.08;SD = 4.548) showed better competency achievement than the control group (mean = 63.06;SD = 5.487). The result of hypothesis test using Mann Whitney test is [Asymp. Sig. (2-tailed) = .000, p <0.05] which means that the teaching aids developed have successfully had a positive effect in improving the achievement of student competencies. The implications of this study have produced a teaching aid that can be used as a template by teachers to build teaching aids that are more affordable, easy and safe to use so that they can be motivated to innovate in learning and become a new career opportunity. Given that the Covid-19 epidemic has affected face-to-face learning, the proposal for further research is the need to integrate logic control programming (PLC) learning aids into a technology-based learning trend. Researchers, on the other hand, suggest a broader scope of study whether teachers and students in a wider area and other fields of knowledge related to the utilization of PLC programming.

5.
Inzynieria Mineralna-Journal of the Polish Mineral Engineering Society ; - (2):505-512, 2021.
Article in English | Web of Science | ID: covidwho-1689569

ABSTRACT

As an important task of the country's socio-economic development, protecting the rights of female workers in employment and income is concerned and implemented by international organizations and all countries in the world. The COVID-19 pandemic has been affecting the global economy and hurt the incomes and employment of many female workers. In Vietnam nowadays, there is an increase in the unemployment rate of female workers, gender inequality in employment and income, and the ability to secure their jobs and income. The article analyzes the current regulations and their implementation in the employment and income of Vietnamese female workers in the context of the COVID-19 pandemic. The article also proposes some recommendations on legal provisions related to training backup jobs, arranging and employing female employees, providing income support for female employees during leave due to the COVID-19 epidemic;and policies related to female workers and their employers. These recommendations will improve Vietnam's labor law on female workers' rights in employment and income and enhance the efficiency of human resource use and socio-economic development.

6.
Metals ; 12(1):91, 2022.
Article in English | ProQuest Central | ID: covidwho-1630048

ABSTRACT

On this matter, the recycling of end-user products in order to reproduce valuable metals can also create significant values and reduce mining activities, and accordingly, their harmful consequences all around the world. [...]research and development into state-of-the-art technologies for the recovery and recycling of metals are absolutely necessary [1,2,3,4]. Tran, L.;Tanong, K.;Jabir, A.;Mercier, G.;Blais, J. Hydrometallurgical Process and Economic Evaluation for Recovery of Zinc and Manganese from Spent Alkaline Batteries. Caplan, M.;Trouba, J.;Anderson, C.;Wang, S. Hydrometallurgical Leaching of Copper Flash Furnace Electrostatic Precipitator Dust for the Separation of Copper from Bismuth and Arsenic.

SELECTION OF CITATIONS
SEARCH DETAIL