Mokslas Lietuvos Ateitis最新文献

ARTIFICIAL NEURAL NETWORKS WITH DYNAMIC SYNAPSES: A REVIEW 动态突触人工神经网络综述

Mokslas Lietuvos Ateitis Pub Date : 2023-11-08 DOI: 10.3846/mla.2023.20144

Martynas Dumpis

{"title":"ARTIFICIAL NEURAL NETWORKS WITH DYNAMIC SYNAPSES: A REVIEW","authors":"Martynas Dumpis","doi":"10.3846/mla.2023.20144","DOIUrl":"https://doi.org/10.3846/mla.2023.20144","url":null,"abstract":"Artificial neural networks (ANNs) are widely applied to solve real-world problems. Most of the actions we take and the processes around us are time-varying. ANNs with dynamic properties allow processing time-dependent data and solving tasks such as speech and text processing, prediction models, face and emotion recognition, game strategy development. Dynamics in neural networks can appear in the input data, the architecture of the neural network, and the individual elements of the neural network – synapses and neurons. Unlike static synapses, dynamic synapses can change their connection strength based on incoming information. This is a fundamental principle allows neural networks to perform complex tasks like word processing or face recognition more efficiently. Dynamic synapses play a key role in the ability of artificial neural networks to learn from experience and change over time, which is one of the key aspects of artificial intelligence. The scientific works examined in this article show that there are no literature sources that review and compare dynamic DNTs according to their synapses. To fill this gap, the article reviews and groups DNTs with dynamic synapses. Dynamic neural networks are defined by providing a general mathematical expression. A dynamic synapse is described by specifying its main properties and presenting a general mathematical expression. Also an explanation, how these synapses can be modelled and integrated into 11 different dynamic ANNs is shown. Moreover, structures of dynamic ANNs are compared according to the properties of dynamic synapses.","PeriodicalId":30324,"journal":{"name":"Mokslas Lietuvos Ateitis","volume":"5 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390711","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}

引用次数: 0

NOISE BARRIERS EFFICIENCY DEPENDENCE ON THEIR SHAPE AND GEOMETRY 噪声屏障的效率取决于其形状和几何形状

Mokslas Lietuvos Ateitis Pub Date : 2023-09-18 DOI: 10.3846/mla.2023.19430

Edgaras Strazdas, Tomas Januševičius

引用次数: 0

RESEARCH ON THE PHYSICAL AND CHEMICAL PROPERTIES OF SEWAGE TREATMENT SLUDGE BIOCHAR AND ITS PREPARATION FOR WASTEWATER 污水处理污泥生物炭的理化性质及其制备研究

Mokslas Lietuvos Ateitis Pub Date : 2023-09-12 DOI: 10.3846/mla.2023.19431

Judita Paulionytė, Rasa Vaiškūnaitė

{"title":"RESEARCH ON THE PHYSICAL AND CHEMICAL PROPERTIES OF SEWAGE TREATMENT SLUDGE BIOCHAR AND ITS PREPARATION FOR WASTEWATER","authors":"Judita Paulionytė, Rasa Vaiškūnaitė","doi":"10.3846/mla.2023.19431","DOIUrl":"https://doi.org/10.3846/mla.2023.19431","url":null,"abstract":"Treatment and recycling of sludge waste have developed into a research focus in recent years. Today, nutrient recovery from wastewater and sludge has received much attention from regulators, academia, industry, and the general public. Institutions and governments around the globe are now seeking innovation to implement a “circular economy” for sewage sludge usage. The development of cost-effective and environmentally friendly disposal processes is necessary to meet political demands. In developing countries, common approaches to the treatment such as incineration and landfilling, cause unwanted secondary pollution. The study aims to determine sewage sludge biochar’s physical and chemical properties and its preparation for wastewater treatment. The chosen chemical properties of sewage sludge biochar were electrical conductivity (EC), total organic carbon (%) content, physical properties were volatile solids, ash content, and also conducted phosphorus leaching experiment. It was determined that by increasing the pyrolysis temperature, the electrical conductivity (from 665 µS/cm to 277 µS/cm) and total organic carbon (from 29.03% to 17.25%) measurements decreased. By increasing the pyrolysis temperature, the ash content (from 50.07% to 69.45%), and volatile solids (from 53.61% to 74.55%) measurements increased.","PeriodicalId":30324,"journal":{"name":"Mokslas Lietuvos Ateitis","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135826449","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}

引用次数: 0

RESEARCH OF METHODS FOR IMPROVING ENERGY EFFICIENCY AND EMISSIONS REDUCTION IN DISTRIBUTION STATION OF NATURAL GAS TRANSMISSION NETWORK 天然气输电网配站节能减排方法研究

Mokslas Lietuvos Ateitis Pub Date : 2023-09-06 DOI: 10.3846/mla.2023.19409

Rapolas Tučkus, Artur Rogoža

{"title":"RESEARCH OF METHODS FOR IMPROVING ENERGY EFFICIENCY AND EMISSIONS REDUCTION IN DISTRIBUTION STATION OF NATURAL GAS TRANSMISSION NETWORK","authors":"Rapolas Tučkus, Artur Rogoža","doi":"10.3846/mla.2023.19409","DOIUrl":"https://doi.org/10.3846/mla.2023.19409","url":null,"abstract":"The global energy crisis, rising energy demand and climate warming make it imperative to find ways to recover energy that is not being put to beneficial use, to reduce primary and final energy consumption, and to reduce emissions. An important part of Lithuania’s energy sector is the natural gas sector and its transmission network, including the gas distribution stations (GDS). It is the GDS that has an unexploited potential for energy recovery, as the gas pressure is reduced through the use of gas pressure regulators, where the potential energy in the highpressure gas is not utilized in a useful way, and the necessary heating of natural gas is carried out through the use of natural gas boilers, with additional environmental pollution. The aim of the study is to analyse the gas distribution station, to find the areas of the station where potential energy is not being used and the environment is being polluted, and to propose reasonable solutions. Following a literature review, alternative technical solutions are selected: turbine-expander, conversion of the gas preheating system from gas boilers to a geothermal heat pump, use of solar collectors, photovoltaic solar cells. In order to assess the potential of technological solutions to improve the efficiency of the DSS and reduce emissions, a multi-criteria analysis of the proposed solutions is carried out, where the measures under evaluation are analysed in energy, economic and environmental terms. The energy assessment analyses the energy consumption, the economic assessment calculates the net present value (NPV) of the investment for each solution and the environmental assessment examines the environmental impact of the proposed measures over their life cycle. Based on the results of the multicriteria analysis, the systems best suited to the object of study (GDS) are recommended.","PeriodicalId":30324,"journal":{"name":"Mokslas Lietuvos Ateitis","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80484544","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}

引用次数: 0

THE EVALUATION OF ROAD INFRASTRUCTURE FOR SELF-DRIVING VEHICLES 自动驾驶汽车道路基础设施评价

Mokslas Lietuvos Ateitis Pub Date : 2023-09-06 DOI: 10.3846/mla.2023.19428

Vladislav Kondratovič, D. Čygas, Edita Juodvalkienė

引用次数: 0

NETWORK INTRUSION DETECTION USING HYBRID MACHINE LEARNING METHODS 使用混合机器学习方法的网络入侵检测

Mokslas Lietuvos Ateitis Pub Date : 2023-09-05 DOI: 10.3846/mla.2023.19385

Karina Čiurlienė, Denisas Stankevičius

{"title":"NETWORK INTRUSION DETECTION USING HYBRID MACHINE LEARNING METHODS","authors":"Karina Čiurlienė, Denisas Stankevičius","doi":"10.3846/mla.2023.19385","DOIUrl":"https://doi.org/10.3846/mla.2023.19385","url":null,"abstract":"Network intrusion detection is a relevant cybersecurity research field. The growing number of intrusions requires more sophisticated methods to protect computer networks. Various machine learning algorithms are used to detect network intrusions and anomalies, but their accuracy is limited. In this research, we address the problem of improving network-level intrusion detection by applying hybrid machine-learning algorithms. The paper proposes three new hybrid machine learning methods and investigates their accuracy using two publicly available datasets CSE-CIC-IDS2018 and NSW-NB-15. In order to increase the accuracy of the classification models, hyperparameter optimization was performed. The iteration method and the Chi-square χ2 test were used to identify significant features of the data set. Analyzing the research results, it was found that the highest network anomaly recognition accuracy of 99.34% was achieved by applying a hybrid algorithm consisting of a decision tree, naive Bayesian, and multilayer perceptron algorithms. Achieved result is 3.13% higher than the best accuracy achieved by individual machine learning algorithms. In order to comprehensively evaluate the studied machine learning algorithms and their suitability for detecting intrusions in a computer network, the algorithms were ranked using the SCR, DR, FR ranking methods.","PeriodicalId":30324,"journal":{"name":"Mokslas Lietuvos Ateitis","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75175247","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}

引用次数: 0

APPLICATION OF REMOTE SENSING FOR MONITORING CARBON FARMING: A REVIEW 遥感在碳农业监测中的应用综述

Mokslas Lietuvos Ateitis Pub Date : 2023-08-21 DOI: 10.3846/mla.2023.19396

Gustė Metrikaitytė Gudelė, Jūratė Sužiedelytė Visockienė

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ANALYSIS AND EVALUATION OF THE BIOGAS PURIFICATION TECHNOLOGIES FROM H2S h2s沼气净化技术的分析与评价

Mokslas Lietuvos Ateitis Pub Date : 2023-08-17 DOI: 10.3846/mla.2023.17242

Kamyab Mohammadi, R. Vaiškūnaitė

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E TICKETING AT PUBLIC TRANSPORT: SOLUTIONS, ADVANTAGES AND PERSPECTIVES IN LITHUANIA 公共交通电子票务:立陶宛的解决方案、优势和前景

Mokslas Lietuvos Ateitis Pub Date : 2023-08-17 DOI: 10.3846/mla.2023.19429

Andrius Samuilovas, R. Ušpalytė-Vitkūnienė

引用次数: 0

COMPARISON OF DIFFERENT ADSORBENTS, CELLULOSE AEROGEL, DEVULCANIZED RUBBER GRANULES AND PYROLYZED SEWAGE SLUDGE GRANULES, FOR DYE REMOVAL FROM CONTAMINATED WATER 比较了纤维素气凝胶、脱水橡胶颗粒和热解污泥颗粒等不同吸附剂对污水中染料的去除效果

Mokslas Lietuvos Ateitis Pub Date : 2023-08-16 DOI: 10.3846/mla.2023.19436

Monika Liugė, D. Paliulis

{"title":"COMPARISON OF DIFFERENT ADSORBENTS, CELLULOSE AEROGEL, DEVULCANIZED RUBBER GRANULES AND PYROLYZED SEWAGE SLUDGE GRANULES, FOR DYE REMOVAL FROM CONTAMINATED WATER","authors":"Monika Liugė, D. Paliulis","doi":"10.3846/mla.2023.19436","DOIUrl":"https://doi.org/10.3846/mla.2023.19436","url":null,"abstract":"The release of dyes used in the textile industry into the natural environment causes unwanted negative effects due to the carcinogenic, mutagenic or even teratogenic properties of the dyes. Based on their chemical composition, dyes are divided into anionic, cationic and non-ionic dyes. In this work, the physical method of wastewater treatment – adsorption – was studied. This is a method in which various natural substances called sorbents are used. Materials used in the adsorption process should be nontoxic, environmentally friendly, cheap, and their use should not cause secondary pollution. The idea of using sorbents made from waste in experimental studies, which can even be used several times in the adsorption process, promotes the sustainable use of resources. The study compared different sorbents: aerogel, devulcanized rubber granules and sewage sludge. It was found that the highest values of adsorption efficiency were characterized by sewage sludge granules that were pyrolyzed at 500 °C. Using 500 °C pyrolysis sewage sludge, the adsorption efficiency reached 28.14–53.73%. Granules made from devulcanized car tire rubber had the lowest adsorption efficiency values: the adsorption efficiency value reached 12.92%. The adsorption efficiency values of the aerogel synthesized from paper waste ranged from 28.21 to 38.07%.","PeriodicalId":30324,"journal":{"name":"Mokslas Lietuvos Ateitis","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82001899","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}

引用次数: 0