SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings最新文献

{"title":"ONTHOGENETIC AND VITALITY STRUCTURE OF ASARUM EUROPAEUM IN TERMS OF FOREST MANAGEMENT IN GOETTINGEN FOREST, LOW SAXONY, GERMANY","authors":"N. Yaroshenko, V. Skliar","doi":"10.5593/sgem2022v/3.2/s14.46","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s14.46","url":null,"abstract":"A detailed study of the herb layer species of forest ecosystems that are anthropogenically affected makes it possible to predict the successive changes and model the development of plant communities in particular areas. The study results of grassland species populations contribute to the restoration and preservation of unique groups that are part of forest ecosystems. Our research deals with understanding the mechanisms of adaptations that exist at the population level of the organization against the background of forestry impacts. With the comprehensive population analysis approach, the critical point is to observe the consequences after the transformation of the living conditions of plants. \u0000The research aim is to establish features and regularities of structural changes in the population typical for beech forests in Low Saxony, Germany, in terms of forestry use. \u0000Our research is based on the classical geobotanical and population analysis methods. We used morphometric, vital, gradient analyses, and mathematical statistics methods to process field research materials. It is curtained that the vitality determining features for A. europeaum were W - complete plant phytomass, Wl - leaves phytomass, and A � total foliage surface area. It was found that a significant part of the early generative ontogenetic stage of the Asarum europaeum population is represented in the unmanaged forest. In contrast, in the young forest plots of 40 and 70 years old tree species, the central part is devoted to the middle-aged and old generative ontogenetic stages, 31,25% and 34,33%, respectively. The vitality structure analysis investigated that herb layer species' vitality is remarkably higher in unmanaged forest.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124113426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ATRAZINE UNDER DENITRIFYING CONDITIONS","authors":"J. Malá, Kristína Pániková, Z. Bílková","doi":"10.5593/sgem2022v/3.2/s12.03","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.03","url":null,"abstract":"The use of pesticides has negative effects on the quality of groundwater. The triazine pesticide atrazine has not been applied to soil in agriculturally used areas of the Czech Republic for many years, yet atrazine and its metabolites are detected in groundwater throughout the country. The effect of these substances on the denitrification process that takes place in groundwater is unclear. \u0000This study aims to examine the behavior of atrazine under denitrifying conditions and the pesticide�s effect on the denitrification process. 7-day and 28-day laboratory tests at a concentration of 100 ?g/L atrazine were performed to simulate such conditions. A single dose of atrazine was introduced to the samples at the beginning of the tests. \u0000No inhibition of the denitrification process was detected in any of the tests. Stimulation of denitrification was measured in the last week of the 28-day test. Adsorption on poplar shavings was the dominant process of the decrease in atrazine concentration during both the 7- and 28-day tests. The biotic loss was 3.9% for the 7-day test. In the 28-day test, there was a total biotic loss of 12.1%. A similar biotic loss of 9.8% was measured also in a 7-day test performed at higher pH. At the end of the 28-day test, the transformation product atrazine-2-hydroxy was detected in the supernatant in very low concentrations. A significant effect of the HgCl2 inhibitor on the instantaneous adsorption rate was observed for all tests.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132688869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POLDER SYSTEM IMPACT ON NATURA 2000 TERRITORIES: A CASE STUDY OF VALGUNDE LATVIA","authors":"Kristaps Siltumens, I. Grīnfelde, Sindija Liepa, Jovita Pilecka-Ulcugaceva, Anda Bakute","doi":"10.5593/sgem2022v/3.2/s12.18","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.18","url":null,"abstract":"The oversupply of water during the floods and the low soil surface levels determine the difficult ecological, economic, and demographic conditions. It then leads to using agricultural land of different types and intensities and various methods of regulating the water regime: summer polders. Human activity has significantly impacted the ecological processes of the floodplains of the Svete floodplain with extensive amelioration works that have significantly altered the appearance of a natural park. The total area of the natural park Svete floodplain is 931 ha. The Valgunde summer one polder channel is the regulated tributary of the right coast of Lielupe and Mellupite, partly part of the nature park's Svete floodplain nature-barred area. During summer, the polder areas are flooded during high water levels of Lielupe. Still, during the summer, they must adjust the optimum humidity regime and ensure drainage systems, including drainage operation or to regulate the humidity regime in the floodplain, to preserve and restore the habitats of wetlands flood meadows and populations of native wild plants and animal species, also to ensure the use of agricultural land, reconstruction works have been carried out at the same time. The aim of this study is to assess the effects of rebuilding works on the hydrological regime of the Natura2000 site. In August 2021, 12 groundwater level monitoring points were established. At the monitoring point, 2 m deep pipes were installed in a 50 mm diameter, with a perforated lower part. Ejkelkamp Micro-Diver was inserted into the pipes, which records water levels every hour. Oneyear observation data were analyzed using descriptive statistics and Kruskal � Wallis. During the winter period, the polder flooded and drained systems for 65 days in the drained area and 156 days in the Natura2000 area.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133691402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MULTIPLE BIOMONITORING TESTS FOR ENVIRONMENTAL ASSESSMENTS","authors":"A. Cozea, E. Bucur","doi":"10.5593/sgem2022/5.1/s20.039","DOIUrl":"https://doi.org/10.5593/sgem2022/5.1/s20.039","url":null,"abstract":"The studies presented in this paper, were aimed at testing, in order to extend the applicability of the methodology for approaching biomonitoring methods to new domains of activity by using bioindicators. The proposed and applied methodology aimed to add new complex studies, some of that not previously used, combining macroscopic, microscopic and biochemical analyses of selected and exposed bioindicators compared to control bioindicators maintained under standardized conditions in the climate chamber. The change of the appearance and of the biochemical composition of plants exposed to various pollutants are compared to those not exposed. The plants selected as bioindicator�s were: Nicotiana tabacum; Petunia hibryda, Ricinus communis and Trifolium pratense. The experimental tests were carried out in three areas and the comparative evaluation of the air quality and of the biological effects generated were highlighted in direct correlation between the level of air pollution and the response of the tested bioindicators. In synthesis, under these conditions, it was concluded that the newly tested plants in these case studies, Ricinus communis and Trifolium pratense, could be used to monitor air quality in the vicinity of industrially polluted areas.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123083537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CAVITY SIZE EFFECTS ON PLATE ANCHOR CAPACITY","authors":"A. Naji, S. Mustăţea, L. J. Aziz","doi":"10.5593/sgem2022/1.1/s02.013","DOIUrl":"https://doi.org/10.5593/sgem2022/1.1/s02.013","url":null,"abstract":"Many reasons deform the cavity inside the soil. The reasons can be classified to two main reasons natural and artificial reasons. Natural reasons belong to the type of soil (It is usually due to materials that enter the formation of the soil and may be affected by natural factors). And artificial reasons due to human work inside the ground like old buildings. The size of these cavities effect on the capacity on structures and it can cause huge damages for the structures. Experimental study presents the effect of size of cavity on the capacity of the plate anchor. A scale model anchor plate embedded inside sandy soil in laboratory to study the behavior of it under the effect of three types of cavities with dimeter (10,15 and 20) cm. the results show direct effect on the capacity of plate anchor and the type of failure that deform inside the soil to resist the uplift loads.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120807295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPLEMENTATION OF PROCEDURES, PRINCIPLES AND OBJECTIVES IN AN ENTERPRISE TO INCREASE PRODUCTION AND ELIMINATE FOOD WASTE","authors":"O. Tița, O. Popa, Claudia Nicoleta Sas, M. Tița, Tiberius-Ilie Oprita","doi":"10.5593/sgem2022/5.1/s20.030","DOIUrl":"https://doi.org/10.5593/sgem2022/5.1/s20.030","url":null,"abstract":"Food waste is a growing global concern, with the attention of major global organizations focusing on monitoring and finding solutions to optimize it. According to the latest data published by the National Institute of Public Health on this topic (2019), in Romania, food waste is estimated at 6,000 tons per day 49% from households, 37% from the food industry, 7% from retail, 5 % of public catering and 2% of the agricultural sector. \u0000In this context, it was proposed to implement a system based on reducing waste and waste as much as possible in an institution in the food industry. This system involves reducing losses to improve business performance and optimizing production with the motivation of the idea \"produce more, consume less\" and as a method the concept of solving problems from cause to root. \u0000The current study involved the implementation and follow-up of several procedures leading to the desired results, these being: VSM - Value Flow Mapping, 5S - the method of obtaining in 5 steps, a clean, organized and standardized work environment that makes the problems visible and eliminates waste, TPM - Total Productive Maintenance (MA - Autonomous Maintenance, MP - Planned Maintenance), SMED - reduction of change times, standardized work and continuous improvement. \u0000Reducing waste generates additional resources (time, space, money) that can be used to improve processes, so the main goals we focused on were reducing waste, increasing process flexibility, maintaining quality at the highest level, and training and staff development to achieve the desired results. \u0000The 5S, TPM and SMED implementation pilot project aimed at a P2 production line in the first stage, resulting in it is possible to work on the standards of autonomous maintenance, planned maintenance, and the 5S procedure established a clean work area with clean equipment, a space well organized in such a way as to reduce the risk of contamination and work in batches to reduce their waste. For the TPM procedure, it was concluded that it helps to keep the machines in good condition, the problems are reported in time to be solved to avoid major failures, critical which can further endanger the safety of the product thus rejecting the batch in question. \u0000The SMED principle aims to change the format, with a clear standard, reduces the risk of mistakes. \u0000A standardized process guarantees quality by: operating procedures are known to all operators, if a problem occurs, the deviation from the standard can be easily measured, problem-solving methods are implemented, a troubleshooting standard is set for each problem and quality issues are minimized.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127111491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RESEARCH OF THERMAL INSULATION PROPERTIES OF THIN-LAYER INSULATING MATERIAL ON HEAT STORAGE TANKS","authors":"Pavla Vrbová, L. Prokopová","doi":"10.5593/sgem2022/6.1/s24.04","DOIUrl":"https://doi.org/10.5593/sgem2022/6.1/s24.04","url":null,"abstract":"The article deals with the research of thermal insulation properties of thin-layer insulating material made of hollow glass-ceramic microspheres in relation to technical building installations. Until now, there has been a lack of scientific studies describing the effectiveness of thermal insulation properties of thin-layer insulation materials on distribution systems or technical equipment. In this particular case, the insulation material was applied in a two-millimeter layer to a heat storage tank and the heat losses were compared for four models (model A - storage tank without insulation, model B - storage tank with thin-layer insulation coating made of hollow glass-ceramic microspheres, model C - storage tank with commonly used insulation supplied by the manufacturer for a specific type of storage tank, and model D - storage tank with insulating coating, including classic insulation). The measured data show that in this particular case, thin-layer insulation material cannot be a good competitor to custommade conventional thermal insulation for a given heat storage tank, however, research shows some potential in specific situations that occur in practice such as insulating of complicated pipeline routes and fittings or additional insulation of pipelines within the reconstruction of buildings in case of lack of space for the application of common insulation.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124971734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE LOST (�R FORGOTTEN) ISLANDS OF THE WESTERN BLACK SEA","authors":"P. Peev, B. Prodanov","doi":"10.5593/sgem2022/1.1/s01.005","DOIUrl":"https://doi.org/10.5593/sgem2022/1.1/s01.005","url":null,"abstract":"In the restoration of the historical and geographical conditions of today's Bulgarian lands, historical sources and documents of different origin, character and purpose come into use. The lack of sufficiently complete and accurate information about the development and dynamics of coastal archaeological landscapes in the narrative source material enhances the importance of medieval and renaissance maps of the Black Sea basin, which are an invaluable source of information. The combination of this information, together with the acquired archeological finds and the data from coastal and underwater geomorphological research, with great scientific reliability can restore the ancient appearance of certain objects. The study examined a large number of medieval and renaissance maps representing the port system on the Western Black Sea coast. The images of islands that do not exist today make a vivid impression. In order to be depicted on the navigational charts, it is obvious that they were important to the sailors of that time (hiding places, reef dangers, etc.). In the analysis of the old maps with the modern bathymetric map, as well as the conducted sea research, it was established that the locations of the depicted islands coincide with the places of modern rocky banks. The article offers options for their origin.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126178223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CLIMATE ASSESSMENT AND RISK ANALYSIS IN WESTERN AND NORTHWESTERN ROMANIA","authors":"V. Mircov, A. Okros, C. Mihut, V. Ciolac, C. Durău","doi":"10.5593/sgem2022/4.1/s19.39","DOIUrl":"https://doi.org/10.5593/sgem2022/4.1/s19.39","url":null,"abstract":"The study of meteorological-climatic phenomena, especially of extreme phenomena that have become more and more frequent, has gained greater significance, given the increasing awareness of the importance of preventing material damage. Thus, monitoring and analysis of atmospheric risk phenomena helps local and national authorities whose duty is to protect the population and property of any kind, and early warning regarding the occurrence of such phenomena is useful to each individual. \u0000The western and north-western part of Romania, like the whole country, due to its geographical position, in the temperate area, is exposed to a wide range of risky meteorologicalclimatic phenomena which may potentially occur throughout the year. The present paper aims to identify certain meteorological aspects, which most correctly express the extreme character of the manifestations of some meteorological parameters. The data provided by the Banat Crisana and Northern Transylvania Meteorological Centers highlighted the evolution of certain risk parameters from two representative meteorological stations in these areas, Timisoara and Satu Mare, over a period of forty years. \u0000The study of meteorological-climatic phenomena, especially of extreme phenomena that have become more and more frequent, has gained greater significance, given the increasing awareness of the importance of preventing material damage. Thus, monitoring and analysis of atmospheric risk phenomena helps local and national authorities whose duty is to protect the population and property of any kind, and early warning regarding the occurrence of such phenomena is useful to each individual. The western and north-western part of Romania, like the whole country, due to its geographical position, in the temperate area, is exposed to a wide range of risky meteorological-climatic phenomena which may potentially occur throughout the year. The present paper aims to identify certain meteorological aspects, which most correctly express the extreme character of the manifestations of some meteorological parameters.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115073054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RESULTS OF BELT CONVEYORS NOISE REDUCTION WITH THE NEW CONSTRUCTION OF ROLLER HOLDERS","authors":"H. Gondek, J. Kolman, D. Boháč","doi":"10.5593/sgem2022/1.1/s03.043","DOIUrl":"https://doi.org/10.5593/sgem2022/1.1/s03.043","url":null,"abstract":"Currently, one of the main problems in the extraction of useful minerals in term of environment is their transport in quarries. With the requirements to reduce the noise of the belt conveyor track, we were looking for a suitable solution to reduce it. So, we started thinking about attaching rollers made of a material other than steel. \u0000The final solution was to insert classic rollers in polyurethane beds called suspension cartridge - which are roller holders made of polyurethane and reinforced with a steel liner to withstand loads, wear and other environmental influences. \u0000This paper describes the development of cartridges. The solution must also take care about their complexity and production economics. The noise reduction also depends on hardness of the cartridges, so we made in 3 polyurethane hardness - 70 Shore, 80 Shore and 90 Shore. \u0000The next part describes the testing machine that we have developed for test the noise of every type of cartridges. The purpose of the tests was to determine the sound pressure levels of the noise according to the used roller holders � classic and in the suspension cartridges with different shore. We can state that our design of the roller holders can reduce the sound pressure level by at least 2.3 dB for the softest cartridges. Although it may seem not much, but this value in mining conditions is, however, very good and in the case of further modifications of the cartridges, the achieved values could be even better.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122697824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}