Archives for Technical Sciences最新文献

{"title":"CORRELATION AND REGRESSION RELATIONSHIPS OF PARAMETERS OF RAINWATER DRAINAGE FROM ROADS","authors":"Anadel Galamić, Zahid Bašić, Nedim Suljić","doi":"10.7251/afts.2022.1427.019g","DOIUrl":"https://doi.org/10.7251/afts.2022.1427.019g","url":null,"abstract":"In order to find the optimal solution for the drainage of rainwater from roads in urban areas, as well as for the evaluation and ranking of conceptual solutions, appropriate mathematical models and software packages were used in this research. For relevant rain episodes, i.e. rainfall of appropriate duration and intensity, runoff coefficients and flows were taken into account and analyzed according to the rational method, all for the purpose of obtaining data on the amount of rainwater entering the sewage system. Through this research, very good correlations and regressions were established between the cross slope of the road and the parameters of rainwater drainage from the road, as well as the correlation and regression relationships of the cross slope of the road and the efficiency of the drain. Likewise, the dependences of the drainage parameters, the efficiency of the drains and the cross slope of the road were determined, expressed through mathematical functions.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43516386","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":"Multiclass voice commands classification with multiple binary convolution neural networks","authors":"Jaroslaw Szkola","doi":"10.31648/ts.8098","DOIUrl":"https://doi.org/10.31648/ts.8098","url":null,"abstract":"In machine learning, in order to obtain good models, it is necessary to train the network on a large data set. It is very often a long process, and any changes to the input dataset require re-training the entire network. If it is necessary to extend the model with new output classes, the use of the existing model becomes problematic, and in the case of extension with new decision classes, it is required to re-train the entire model based on all data. To improve this process, a new neural network architecture was proposed, which allows for easy extension of the already existing models with new classes, without the need to re-train the entire network, as well as the time needed to train the sub-model is much shorter than the time needed to re-train the entire neural network. The presented network architecture is designed for data that has at least two decision classes.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81859076","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":"Abrasive wear resistance of matrix composites carbon fiber reinforced polymers","authors":"Klaudia Olejniczak, J. Napiórkowski","doi":"10.31648/ts.8226","DOIUrl":"https://doi.org/10.31648/ts.8226","url":null,"abstract":"The paper presents the results of the abrasive wear resistance test of composites based on polymers reinforced with carbon fibers. Two types of fiber composites obtained from a yacht manufacturer were used for the tests. The tests were carried out using the ball-cratering method without abrasive suspension. On the basis of the specific wear rate  Kc, better tribological properties of the polyester matrix reinforced with glass fabric were observed compared to the polyester matrix reinforced with a glass emulsion mat. The composite material reinforced with glass cloth was characterized by smaller crater diameters, which may cause plastic deformation due to the low hardness of the material.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86835412","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":"THERMAL COMFORT OF UGLJEVIK TOWN FOR THE YEAR 2021 OBSERVED THROUGH THE BIOCLIMATIC INDEX WBGT","authors":"D. Đurić, Vanja Jakšić, Aleksandar Šelić, Ilija Vlajić","doi":"10.7251/afts.2022.1426.071dj","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.071dj","url":null,"abstract":"This paper researches thermal comfort of the town of Ugljevik in Bosnia and Herzegovina for the year 2021, by analyzing bioclimatic index Wet bulb globe temperature (WBGT). The analysis is a continuation of the research on the bioclimatic conditions of the area of Semberija plain and Majevica mountain, which has so far covered only the city of Bijeljina, as the most urbanized area of the researched space. All five categories of the WBGT index are present during a year, with different number of days for each category. For thermal comfort the most important factors should be observed during summer months of the year, June, July and August, due to the highest number of days in categories with values over 28, that are dangerous for human organism and outdoor activities. The accent in this research was put on the number of categories that are present during one month, but also during just one day, by using mean, maximum and minimal temperatures for calculations. This type of research allows us to see how many different categories one day has.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44742395","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":"APPLICATION OF HYBRID SFLA AND ACO ALGORITHM TO OMEGA PLATE FOR DRILLING PROCESS PLANNING AND COST MANAGEMENT","authors":"N. Mehmood, Muhammad Umer, Umer Asgher","doi":"10.7251/afts.2022.1426.001n","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.001n","url":null,"abstract":"Tool traveling and tool switching time constitute almost seventy percent (70%) of the total time consumed in drilling process. This fact that 70% of the total time is nonproductive and does not add any value to the job, grabs attention of the researchers and the industrialist for optimization. A literature on drilling process revealed that very few studies have been done on hybridization of metaheuristics for optimization of tool travel time. This research gap is the motivation of the present study. In this study, two metaheuristic approaches – the shuffled frog leaping algorithm (SFLA) and ant colony optimization (ACO) were hybridized. With respect to hybridization of SFLA and ACO, this study signifies its originality and novelty in which main objective is to minimize the tool travel time. The literature review also revealed that the shortest path generated through commercially available software is not optimal all the time. This aspect emphasizes the application of metaheuristic algorithms on the real-world industrial problems. In this study, the proposed hybrid algorithm was applied to drilling of omega plate which is used in automobile manufacturing industry. The results of the proposed hybrid algorithm were compared with those of manual drilling path and software generated path. The results obtained through proposed hybrid algorithm were improved by 11.1% when compared to results of manual drilling path. The results of proposed algorithm were also better than results of commercial software Creo 6.0 and Siemens NX by 5.9% each. This showed that hybrid algorithm outperformed the commercially available software. This not only validates the efficacy of proposed hybrid algorithm, but also indicates the significance of the metaheuristic algorithm applications in industrial optimization problems.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44954163","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":"SIGNIFICANCE OF HARVEST RESIDUES IN SUSTAINABLE MANAGEMENT OF ARABLE LAND I. DECOMPOSITION OF HARVEST RESIDUES","authors":"N. Pržulj, V. Tunguz","doi":"10.7251/afts.2022.1426.061p","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.061p","url":null,"abstract":"Harvest residues are parts of cultivated plants that remain on the plot after harvest or grazing. Decomposition of plant residues by microorganisms involves two simultaneous processes: mineralization and humification of carbon compounds. Decomposition processes depend on the type of plant residues, edaphic factors and residue management factors. Edaphic factors dominate in areas exposed to adverse weather conditions, while the type of plant residues largely plays the role of a regulator in favorable environmental conditions. Decomposition of plant residues takes place in two stages; phase I is relatively fast and depends on the initial nitrogen content, and phase II is relatively slow and is determined by the decomposition of lignins and phenols. In general, water-soluble fractions are degraded first, followed by structural polysaccharides, and finally lignin. Low winter temperatures and dry soil during the summer limit microbial decomposition, while microbial decomposition is greatest during the wet warm spring and autumn seasons.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47822163","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":"CONTROL FACTORS OF IRON MINERALIZATION IN THE METALLOGENY OF THE LJUBIJA ORE REGION","authors":"Aleksej Miloševič, A. Grubić, R. Cvijić, Miodrag Čelebić, Boško Vuković","doi":"10.7251/afts.2022.1426.013m","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.013m","url":null,"abstract":"The control factors of mineralization in the Ljubija ore region are stratigraphic, lithological, magmatogenic, structural-tectonic and hypergenic. The distribution of iron ores in the Ljubija ore region is primarily controlled by the spread of the Olistostrome member of the Carboniferous Javorik flysch formation. Only that member, whether uncovered on the surface or overlain by an Upper flysch member, contains primary siderite-ankerite iron ores. In addition, the distribution of ore bodies is significantly affected by the concentration and location of mineralized limestone and limestone-dolomite olistoliths. The seating of carbonate olistolitic bodies in the member is irregular, that is, chaotic. The size, shape, and morphology of these bodies and their boundaries are extremely uneven and diverse, in both primary and tectonic occurrences. Not all olistolitic bodies are mineralized. Those that are can be completely, partially or minimally mineralized. Due to all this, ore bodies and deposits “have no continuity and appear in isolation”. Therefore, there is a high exploration risk. These major irregularities are not characteristic of redeposited powdered limonite ores in Plio-Quaternary lacustrine sediments. Cimmerian lateral ruptures were important for the distribution of hydrothermal solutions and today's distribution of ore deposits and occurrences within ore fields and ore nodes. The hypergenic control factor significantly influenced the forming of iron oxide ores. In the Alpine tectogenesis, old systems of faults and joints were renewed and new created. In this respect, the most significant were transverse, open, steep SW-NE ruptures.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46977333","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":"SIGNIFICANT FACTORS OF IMPLEMENTING OPEN BUILDING SYSTEMS IN MALAYSIA","authors":"M. Hosseini, I. Izni Syahrizal, Sadeghifam Aidin Nobahar, Rahnama Hamed","doi":"10.7251/afts.2022.1426.049h","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.049h","url":null,"abstract":"Changes in the built environment are inevitable due to diversity in human needs over time and it is suggested by scientists to consider flexibility and adaptability under concept of Open Building Systems (OBS) to mitigate impacts on environment and to satisfy the end-user. However, conventional methods are still common due to the lack of knowledge in OBS, resistance to change, monopoly of conventional building material manufacturing, insufficient legislations and lack of awareness of end-users. This study initially aimed to identify the significant factors of OBS concept that positively influence the construction industry of Malaysia and to verify the factors based on expert’s view and ultimately to develop a conceptual framework. Both quantitative and qualitative research methods was employed to achieve these objectives including a comprehensive literature review on OBS to identify the main factors before verifying them by experts’ perspective through Delphi method and developing the conceptual framework through ANP decision-making methods. This research was done specifically for construction industry in Malaysia but it has contributions in similar methods worldwide. Outcome of the literature review signifies 48 factors. These factors were later verified by selected experts of the area and the result revealed that 44 factors were confirmed and classified under 8 main clusters. The findings show that “design for change” is the main influential variant among the main clusters followed by “standardization”, “manufacturing of OBS components”, “level of decision-making”, “theory of level”, “end-user oriented design”, “enhanced post construction maintenance”, “level of independency of building systems and subsystems”, and “OBS factors influencing sustainability development”. The main category of “design for change” includes the most influential factors such as “design for adaptability”, design for flexibility”, “design for generality”, “design for assembly”, “design for disassembly”, and “design based on service life span”. Some other significant sub factors include “modular coordination”, “identifying level of decision-making”, “end-user involvement”, “identifying ordering principles”, and “replace-ability”. This research will help practitioners in the construction industry to implement Open Building concept to achieve more adaptable Built Environment.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42594019","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":"APPLICATION OF GAM MODEL TO PROTECTED AREAS OF THE NORTHWESTERN PART OF CENTRAL SERBIA","authors":"Marija R. Perić, Slobodanka Stankov","doi":"10.7251/afts.2022.1426.091p","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.091p","url":null,"abstract":"The research in this paper refers to the definition and scientific explanation of relevant indicators (indicators and sub-indicators) that effect on the development of geoheritage (Petnička cave, gorge of the river Gradac and Trešnjica, and Taor springs) and their placement on the tourism market. By applying the GAM model, it has been proven that geoheritage in this part of Serbia represents a very significant tourism potential, which must not be neglected, and even more underestimated. The results of the research showed that the Petnička cave represents the greatest tourism potential Z32, while the Taor springs have the lowest tourism value Z22. In the future, geoheritage sites need bigger promotion, infrastructure construction and the creation of their own tourism brand.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41580650","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":"LANDSLIDE REMEDIATION ON THE SCARP ABOVE THE LEVEL, ROAD M-17, SECTION: 007, TOPČIĆ POLJE – LAŠVA","authors":"Zlatan Talić, Dženita Cerić","doi":"10.7251/afts.2022.1426.023t","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.023t","url":null,"abstract":"The aim of this paper is to present a landslide remediation based on research and testing of samples, and to list those measures that will help to remediate the landslide or partially mitigate its further effects. These measures include: closing cracks, collecting and draining surface water from landslides, terrain planning, making supports from stone materials, drainage trenches, draining water from traffic areas, repairing water supply and sewerage systems, and establishing monitoring. The phenomenon of instability and its causes has been analyzed, and the results of research at the subject site before and after the remediation of this instability will be presented and discussed. Geological profile and remediation methods will be determined after the presentation of the results.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44391925","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}