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Examining the leadership approaches adopted by Fintech management when implementing organizational change prompted by digital transformation 研究金融科技管理在实施数字化转型推动的组织变革时采用的领导方法
Pub Date : 2023-08-31 DOI: 10.15587/2706-5448.2023.286627
Misheck Musaigwa, Vivence Kalitanyi
The object of this research is the role of leadership in the Fintech business during change which is prompted by digital transformation. The financial sector is going through fundamental changes because of the emergence of new digital technologies. The digital transformation in the financial sector is largely being driven by Fintech. As leadership plays a fundamental role in managing change, it is essential to understand their role and whether the traditional leadership styles are still relevant in the digital era. Interviews were used to collect data from ten participants who are managers responsible for change in a Fintech firm under study. The study adopted purposive sampling to identify managers with relevant experience in change management and digital transformation. The findings of the study indicate that managers are still using the old or traditional management approach and leadership style to manage change in the digital era. In addition, the firm’s leadership understands the importance of including organizational members in the planning and implementation of change. In addition, buy-in was found to be essential as leaders acknowledged its significance. It was also indicated that some of the roles in the traditional leadership style are still relevant in the digital era as they are blended with the digital leadership style. The leadership of the Fintech understudy are recommended to embrace the new digital leadership style which requires them to understand the demands of the digital era to survive and be successful in the contemporary business environment. Moreover, the firm is recommended to examine digital leadership, which is a new concept of leadership in the digital era. Current literature suggests that this new leadership concept is effective when an organization is implementing digital transformation. Digital leaders are expected to have networking intelligence as an essential element that enables them to build networks.
本研究的对象是在数字化转型推动的变革过程中,金融科技业务中的领导角色。由于新的数字技术的出现,金融部门正在经历根本性的变化。金融领域的数字化转型在很大程度上是由金融科技推动的。由于领导力在管理变革中起着至关重要的作用,因此了解他们的作用以及传统领导风格在数字时代是否仍然相关至关重要。访谈的目的是收集10位参与者的数据,他们是一家金融科技公司负责变革的经理。本研究采用有目的的抽样方法来识别具有变革管理和数字化转型相关经验的管理者。研究结果表明,在数字时代,管理者仍在使用旧的或传统的管理方法和领导风格来管理变革。此外,公司的领导层也明白组织成员参与变革计划和实施的重要性。此外,由于领导人承认认同的重要性,因此认同是必不可少的。报告还指出,传统领导风格中的一些角色在数字时代仍然具有相关性,因为它们与数字领导风格相融合。建议金融科技替补的领导接受新的数字领导风格,这要求他们了解数字时代的需求,以便在当代商业环境中生存和成功。此外,建议公司研究数字领导力,这是数字时代领导力的新概念。目前的文献表明,当组织实施数字化转型时,这种新的领导概念是有效的。数字化领导者被期望拥有网络智能,这是使他们能够建立网络的基本要素。
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引用次数: 1
Comparative study of the antioxidant properties of organic and inorganic melissa 有机与无机梅莉莎抗氧化性能的比较研究
Pub Date : 2023-08-31 DOI: 10.15587/2706-5448.2023.286687
Alina Tkachenko
The object of research is organic and inorganic lemon balm. The subject of research is the antioxidant properties of these plants. One of the most problematic areas is that organic products have a slightly different chemical composition, which is due to the lack of fertilizers during their cultivation. The research hypothesis is that organic plants naturally release more phenols and polyphenols, which are needed to fight pests. At the same time, polyphenol compounds have antioxidant properties. The work investigated the total content of polyphenols in organic and inorganic lemon balm. The content of polyphenols in terms of gallic acid was determined by the spectrophotometric method by reaction with the Folin-Chocalteu reagent. In order to determine the antioxidant properties, the content of the peroxide number and the acid number of the fatty base during storage were determined. As a fat base, a mixture of organic butter and organic rye oil was chosen in a ratio of 75:25. Dried lemon balm was added in the amount of 4 % to the mass of fat. Changes in the fat base were determined in three samples: without the addition of lemon balm, with the addition of dried inorganic and organic lemon balm. The samples were stored in a thermostat at a temperature of 50 °C for 10 days. Studies were conducted every 2 days. The amount of peroxides was determined by the iodometric method. The acid number content was determined every 5 days by the titration method. It has been established that organic lemon balm has better antioxidant properties. This is due to the content of polyphenolic substances. So, the content of polyphenols in ordinary lemon balm is 14.1 mg/g, and in organic – 26.5 mg/g. Research has established that the value of the peroxide number after 10 days of storage was 17 ½O for the sample with the addition of organic lemon balm and 22 ½O for the sample with the addition of ordinary lemon balm. The sample without the addition of lemon balm had a value of 25 ½O. The value of acid number of fat on the tenth day of storage was 1.4 for the sample with the addition of inorganic lemon balm and 1.1 for the sample with the addition of organic lemon balm. Further research is planned to be devoted to the effect of plant organic antioxidants on the lipid fraction of food products.
研究对象是有机和无机的柠檬香膏。研究的主题是这些植物的抗氧化特性。最成问题的领域之一是有机产品的化学成分略有不同,这是由于在种植过程中缺乏肥料造成的。该研究的假设是,有机植物自然释放出更多的酚类和多酚类物质,这是对抗害虫所需要的。同时,多酚类化合物具有抗氧化性能。 研究了有机和无机香蜂草中多酚的总含量。采用分光光度法与福林-巧克力试剂反应,测定没食子酸中多酚的含量。为了测定其抗氧化性能,测定了贮藏过程中油脂碱的过氧化物数和酸数。作为脂肪基础,选择了有机黄油和有机黑麦油的混合物,比例为75:25。干柠檬香蜂油按脂肪质量的4%加入。在三种样品中测定了脂肪基础的变化:不添加柠檬香蜂草,添加了干燥的无机和有机柠檬香蜂草。样品在温度为50°C的恒温器中保存10天。每2天进行一次研究。过氧化物的量用碘量法测定。每5天用滴定法测定酸数含量。有机柠檬香蜂草具有较好的抗氧化性能。这是由于多酚类物质的含量。因此,普通柠檬香蜂草的多酚含量为14.1 mg/g,有机柠檬香蜂草的多酚含量为26.5 mg/g。研究表明,添加有机柠檬香蜂草的样品在储存10天后的过氧化值为17½O,添加普通柠檬香蜂草的样品为22½O。没有添加柠檬香蜂草的样品的值为25½O。贮藏第10天,添加无机柠檬香膏的样品脂肪酸值为1.4,添加有机柠檬香膏的样品脂肪酸值为1.1。计划进一步研究植物有机抗氧化剂对食品脂质部分的影响。
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 The work investigated the total content of polyphenols in organic and inorganic lemon balm. The content of polyphenols in terms of gallic acid was determined by the spectrophotometric method by reaction with the Folin-Chocalteu reagent. In order to determine the antioxidant properties, the content of the peroxide number and the acid number of the fatty base during storage were determined. As a fat base, a mixture of organic butter and organic rye oil was chosen in a ratio of 75:25. Dried lemon balm was added in the amount of 4 % to the mass of fat. Changes in the fat base were determined in three samples: without the addition of lemon balm, with the addition of dried inorganic and organic lemon balm. The samples were stored in a thermostat at a temperature of 50 °C for 10 days. Studies were conducted every 2 days. The amount of peroxides was determined by the iodometric method. The acid number content was determined every 5 days by the titration method. It has been established that organic lemon balm has better antioxidant properties. This is due to the content of polyphenolic substances. So, the content of polyphenols in ordinary lemon balm is 14.1 mg/g, and in organic – 26.5 mg/g. Research has established that the value of the peroxide number after 10 days of storage was 17 ½O for the sample with the addition of organic lemon balm and 22 ½O for the sample with the addition of ordinary lemon balm. The sample without the addition of lemon balm had a value of 25 ½O. The value of acid number of fat on the tenth day of storage was 1.4 for the sample with the addition of inorganic lemon balm and 1.1 for the sample with the addition of organic lemon balm. Further research is planned to be devoted to the effect of plant organic antioxidants on the lipid fraction of food products.","PeriodicalId":22480,"journal":{"name":"Technology audit and production reserves","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136035845","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 improvement of the intelligent decision support system for forecasting non-linear non-stationary processes 非线性非平稳过程预测智能决策支持系统的改进
Pub Date : 2023-08-30 DOI: 10.15587/2706-5448.2023.286516
Petro Bidiuk, Tetyana Prosyankina-Zharova, Valerii Diakon, Dmytro Diakon
The paper is focused on solving the modern scientific and applied problem related to development and practical use in Decision Support Systems (DSS) of information technologies directed towards forecasting of non-linear non-stationary processes (NNP) that take place in economy and finances as well as in many other areas of activities. Thus, object of study are non-linear non-stationary processes taking place in economy and financial sphere. The basic problem of the study is development of new mathematical models and methods of analysis and forecasting non-linear non-stationary processes in economy and finances, improvement of information decision support technologies that would help to enhance quality of forecast estimates and respective decisions in conditions of uncertainties and risk. The methods given in the paper are used for automating the process of intellectual data analysis that describe the processes under study and automatizing model constructing procedures. As a result of the study performed the information technology was developed to be used in DSS based upon system analysis principles, taking into consideration possible data uncertainties, regression and intellectual data analysis. The technology provides for constructing adequate models of the process under study and computing high quality forecast estimates. The particular feature of the approach proposed is that it provides for high quality of experimental results due to taking into consideration special features of non-linear non-stationary processes that take place in various spheres of activities and their evolution is influenced by many specific factors. The use of the technology proposed in decision support systems of enterprises, state governmental organs, and local self-government will create basis for effective solving the tasks of governing development of non-linear non-stationary processes that take place in many spheres of activities. The approaches proposed in the paper can be used in practice as separately as well as parts of existing information systems at enterprises and organizations.
本文的重点是解决与信息技术决策支持系统(DSS)的发展和实际应用相关的现代科学和应用问题,这些信息技术用于预测经济和金融以及许多其他活动领域中的非线性非平稳过程(NNP)。因此,研究对象是发生在经济和金融领域的非线性非平稳过程。这项研究的基本问题是发展新的数学模型和方法,分析和预测经济和金融中的非线性非平稳过程,改进信息决策支持技术,以帮助提高预测估计和在不确定和风险条件下作出相应决策的质量。本文给出的方法用于描述所研究过程的智能数据分析过程的自动化和模型构建过程的自动化。研究的结果是,在考虑到可能的数据不确定性、回归和智能数据分析的情况下,根据系统分析原则,开发了用于决策支持的信息技术。该技术为所研究的过程构建适当的模型和计算高质量的预测估计提供了条件。所提出的方法的特点是,它提供了高质量的实验结果,因为它考虑了发生在各种活动领域的非线性非平稳过程的特殊特征,它们的演变受到许多特定因素的影响。在企业、国家政府机关和地方自治政府的决策支持系统中提出的技术的使用,将为有效解决在许多活动领域中发生的非线性非平稳过程的管理发展任务创造基础。本文提出的方法既可以单独使用,也可以作为企业和组织现有信息系统的一部分在实践中使用。
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引用次数: 0
A comprehensive analysis of the electronic fare collection systems effectiveness implementation on public transit and prospective directions of its application in Ukraine 综合分析乌克兰公共交通电子收费系统的实施效果及其应用前景
Pub Date : 2023-08-30 DOI: 10.15587/2706-5448.2023.286614
Denys Ponkratov, Denys Kopytkov, Victor Dolya
The object of research is the effectiveness of the implementation of electronic fare collection systems on public transit. Applying the electronic fare collection systems is a general trend in improving public transport services for users. In the pre-war period, the systems began to be implemented in many cities of Ukraine. At the same time, this activity was not of a systemic nature and at the current stage it is mainly considered as a means of ensuring more convenient conditions for the use of scheduled passenger transport services for passengers. The article focuses on a broader understanding of the effectiveness of the fare collection systems implementation, their role in ensuring the internal integration of the multi-modal public transport system, increasing the operational efficiency, providing the safety of transportation and increasing the attractiveness of public transit services for the population as a real alternative for the private cars to use. The implementation efficiency of the electronic fare collection systems in public transit should be expressed through various aspects. There are 9 aspects to be considered: system integration; comfort ensuring; transportation safety assistance; operational efficiency and passengers' travel time reduction; integration into the management and planning systems; implementation of the flexible fare system; conduction of the flexible fare policy; development of reasonable income distribution system; increase of the scheduled passenger transport services attractiveness. It is suggested to use systemic approach for integrated multimodal public transit system creation. It requires the development of an intelligent transport system that would integrate separate functions of the electronic fare collection system into controlling, managing and planning subsystems. The practical introduction of the solutions proposed regarding the prospects to develop electronic fare collection systems in the cities of Ukraine will make it possible to increase the efficiency of their use and contribute to the improvement of the quality of transport services for passengers.
研究的对象是在公共交通上实施电子收费系统的有效性。应用电子收费系统是改善公共交通服务的大势所趋。在战前时期,该系统开始在乌克兰的许多城市实施。与此同时,这项活动不是系统性的,在目前阶段,它主要被认为是确保为乘客使用定期客运服务提供更便利条件的一种手段。本文的重点是更广泛地了解收费系统实施的有效性,它们在确保多式联运公共交通系统的内部整合,提高运营效率,提供交通安全以及增加公共交通服务对人口的吸引力作为私家车使用的真正替代方案方面的作用。公共交通电子收费系统的实施效率应通过多个方面来体现。有9个方面需要考虑:系统集成;舒适的保证;运输安全援助;提高运营效率,减少乘客出行时间;纳入管理和规划系统;实施弹性收费制度;实施弹性票价政策;建立合理的收入分配制度;增加定期客运服务的吸引力。建议采用系统化方法构建综合多式联运公共交通系统。它需要发展一种智能运输系统,将电子收费系统的不同功能整合到控制、管理和规划子系统中。就乌克兰各城市发展电子收费系统的前景提出的解决办法的实际采用,将有可能提高其使用效率,并有助于改善为乘客提供的运输服务的质量。
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引用次数: 0
Evaluation of the efficiency of microwave heating of soils 微波加热土壤的效率评价
Pub Date : 2023-08-30 DOI: 10.15587/2706-5448.2023.286551
Oksana Bondarenko, Irуna Boshkova
One of the innovative directions of heat treatment of soil in the technologies of decontamination from pesticides, oil products and disinfection is heating in a microwave electromagnetic field. Numerical studies testify to the effectiveness of the microwave treatment method. This is due to the peculiarities of the interaction of the microwave field with dielectric materials. Unique effects arise, such as the possibility of local heating, volume heating of the material, unidirectionality of pressure and humidity gradients. This contributes to the intensification of transfer processes and the possibility of energy savings. However, the challenge at present is to determine the processing regimes, including load mass, specific microwave field power, electric field strength, material layer thickness, and processing time, under which the microwave method will be energy efficient. Conducting multifactorial experimental studies allows determining the conditions of energy feasibility of microwave soil treatment. Therefore, the object of research is the process of heating a dense layer of soil under the action of a microwave electromagnetic field. The results of studies on the effect of microwave treatment of soil contaminated with organophosphorus pesticides, contaminated with petroleum products, and under what conditions the qualitative effect was obtained, as well as the results of the effect of the microwave field on the pathogenic microflora of the soil used for growing plants, were considered. The high quality of implementation of soil treatment technologies is determined. Energy efficiency was determined on the basis of data on temperature and moisture content, analysis of thermograms of microwave heating of chernozem and clay soil, analysis of the influence of material layer thickness, influence of dielectric properties and power of the microwave field. According to the results of thermal calculations, the values of the efficiency of the microwave chamber and the intensity of the electric field were determined, which are recommended as the basis for scaling in order to transfer the experimental results to industrial installations. During the research, specific experimental methods of research under microwave heating conditions, analytical methods of thermal calculations, developed by the authors of the experimental research methodology were used. Experimental studies were carried out on the installation created by the authors. The results of the research are intended for the wide implementation into practice of technological calculations of microwave chambers for heat treatment of soils, intensification of disinfection processes under the conditions of energy efficiency of the transformation of the energy of the microwave field into the internal energy of the soil.
土壤热处理在农药、油品净化和消毒技术中的创新方向之一是微波电磁场加热。数值研究证明了微波处理方法的有效性。这是由于微波场与介电材料相互作用的特殊性。产生独特的效果,例如局部加热的可能性,材料的体积加热,压力和湿度梯度的单向性。这有助于加强转移过程和节约能源的可能性。然而,目前的挑战是确定加工制度,包括负载质量、比微波场功率、电场强度、材料层厚度和加工时间,在这些条件下微波方法将是节能的。通过多因素实验研究,可以确定微波土壤处理的能量可行性条件。因此,研究对象是在微波电磁场作用下加热致密土层的过程。考虑了微波处理有机磷农药污染土壤、石油产品污染土壤的效果、在什么条件下获得定性效果的研究结果,以及微波场对植物生长用土壤病原菌群的影响结果。确定了土壤处理技术的高质量实施。利用温度和含水率数据、黑钙土和粘土的微波加热热像图分析、材料层厚度的影响、介电特性和微波场功率的影响分析,确定了能量效率。根据热学计算结果,确定了微波室的效率值和电场强度值,并建议将其作为缩放的基础,以便将实验结果应用于工业装置。在研究过程中,采用了实验研究方法学作者开发的微波加热条件下的具体实验研究方法——热计算分析方法。对作者创作的装置进行了实验研究。研究结果旨在广泛应用于土壤热处理微波室的技术计算,在微波场能量转化为土壤内能的能效条件下加强消毒过程。
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引用次数: 0
Developing a strategy for improving mayonnaise with different proportions of vegetable oils 用不同比例的植物油改进蛋黄酱的策略
Pub Date : 2023-08-29 DOI: 10.15587/2706-5448.2023.286488
Larysa Kryskova, Serhii Spivak
The object of research is the process of forming a strategy for the improvement of mayonnaise. Based on the SWOT analysis, a strategy for improving mayonnaise with a different ratio of sunflower, linseed and hemp oils was formed in order to increase the content of polyunsaturated fatty acids, in particular the Omega-3 family, reduce its calorie content, and develop a strategy for bringing the product to the market. During the research, the following methods were used: economic-statistical, SWOT analysis method, expert method, analytical, program-targeted, as well as statistical methods of experimental data processing. The work solves the task of forming a strategy for improving the recipe composition of industrially produced mayonnaise and bringing it to the market. Today, the market offers a huge number of mayonnaises with different compositions and different quality, with low, medium and high fat content, with the addition of various additives that are undesirable for the human body. Based on the broad possibilities of using mayonnaise as an additional food product, the task arose to make changes in its composition, improving the biological and nutritional value of mayonnaise with an increased content of polyunsaturated fatty acids, in particular of the Omega-3 family. Such a modified food product can be considered functional because, on the one hand, polyunsaturated fatty acids (PUFAs) of the Omega-3 family are in short supply in the diet of the average Ukrainian, and on the other hand, they play an important role in the prevention of diseases of the cardiovascular, nervous, and immune systems of the body. The conducted analysis of economic, social and technological factors characterizing the products offered on the mayonnaise market made it possible to formulate a strategy for improving mayonnaise with different proportions of sunflower, linseed and hemp oils, as well as bringing it to the market using marketing tools. The practical implementation of these proposals will make it possible to bring mayonnaise with reduced calorie content to the market, which will contain a significantly higher content of PUFAs of the Omega-3, Omega-6 and Omega-9 family, which are useful for the human body. Therefore, the use of linseed and hemp oils is recommended for supporters of healthy food, which makes it popular among the main groups of consumers.
研究的对象是形成改进蛋黄酱策略的过程。通过SWOT分析,形成了葵花籽油、亚麻籽油和大麻油不同配比的蛋黄酱改进策略,以提高蛋黄酱中多不饱和脂肪酸尤其是Omega-3家族的含量,降低蛋黄酱的卡路里含量,并制定产品上市策略。在研究过程中,主要采用了经济统计学、SWOT分析法、专家法、分析法、方案法以及实验数据处理的统计学方法。这项工作解决了形成改进工业生产蛋黄酱配方组成并将其推向市场的策略的任务。今天,市场上提供了大量不同成分和不同质量的蛋黄酱,有低、中、高脂肪含量,还添加了各种对人体有害的添加剂。基于将蛋黄酱作为一种额外食品的广泛可能性,改变其成分的任务出现了,通过增加多不饱和脂肪酸的含量来提高蛋黄酱的生物和营养价值,特别是Omega-3家族。这种改性食品可以被认为是功能性的,因为一方面,ω -3家族的多不饱和脂肪酸(PUFAs)在乌克兰普通民众的饮食中缺乏,另一方面,它们在预防身体心血管、神经和免疫系统疾病方面发挥着重要作用。通过对蛋黄酱市场上提供的产品的经济、社会和技术因素的分析,可以制定用不同比例的葵花籽油、亚麻籽油和大麻油改进蛋黄酱的策略,并利用营销工具将其推向市场。这些建议的实际实施将使低热量蛋黄酱进入市场成为可能,这种蛋黄酱将含有大量对人体有益的Omega-3、Omega-6和Omega-9系列PUFAs。因此,建议健康食品的支持者使用亚麻籽油和大麻油,这使得它在主要消费者群体中很受欢迎。
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引用次数: 0
Analysis of factors in managing digital entrepreneurship development in tourism in Ukraine: challenges and opportunities 乌克兰旅游业数字创业发展管理因素分析:挑战与机遇
Pub Date : 2023-08-29 DOI: 10.15587/2706-5448.2023.286471
Olena Kasian
Research object is the challenges and opportunities faced by small and medium-sized enterprises (SMEs) in Ukraine's tourism industry, specifically focusing on digital development and entrepreneurship. This article addresses the difficulties and advantages encountered by SMEs in Ukraine's tourism sector regarding digital development and entrepreneurship. It seeks to comprehensively analyze various facets of digitalization, encompassing distinct activities, trends in development, factors influencing trends and clusters, and pivotal areas for growth. Moreover, the study assesses the impact of European integration on the nation's tourism sector and evaluates the potential of innovative endeavors by small enterprises relative to their larger counterparts. In-depth perspectives on digitalization practices in the tourism industry of Ukraine are identified. The study investigates strategies for managing customer relationships and employs social media data to gauge customer satisfaction. Additionally, the article proposes an accelerated digitalization program for small businesses, coupled with collaborative efforts in clusters, as a means to attract investment and foster innovation. This approach is envisioned to enhance business productivity and create diverse channels for customer engagement. The study underscores the significance of advancing digital infrastructure to enhance the appeal and investment potential of Ukraine's tourism sector. Notably, the research emphasizes the importance of efficient SMEs, highlighting their potential for expansion when partnered with larger corporations. Simultaneously, it addresses the need to streamline inefficient SMEs to boost overall productivity. The article delves into the practical implementation of management strategies and the adoption of innovative practices. It underscores the value of reshaping SMEs' business models to embrace a more adaptable division of labor. Additionally, a proposed cluster strategy emerges as a potential solution to address various challenges, promoting innovation, regional development, and adaptation to evolving business environments.
研究对象是乌克兰旅游业中小企业(SMEs)面临的挑战和机遇,特别关注数字化发展和创业。本文讨论了乌克兰旅游业中小企业在数字发展和创业方面遇到的困难和优势。它试图全面分析数字化的各个方面,包括不同的活动、发展趋势、影响趋势和集群的因素以及关键的增长领域。此外,该研究还评估了欧洲一体化对国家旅游业的影响,并评估了小企业相对于大型企业的创新潜力。对乌克兰旅游业的数字化实践进行了深入的研究。该研究调查了管理客户关系的策略,并利用社交媒体数据来衡量客户满意度。此外,文章还提出了加速小企业数字化计划,并结合集群的合作努力,作为吸引投资和促进创新的手段。这种方法旨在提高业务生产力,并为客户参与创造多样化的渠道。该研究强调了推进数字基础设施对提高乌克兰旅游业吸引力和投资潜力的重要性。值得注意的是,该研究强调了高效中小企业的重要性,强调了它们与大公司合作时的扩张潜力。同时,它解决了精简效率低下的中小企业以提高整体生产力的需要。本文探讨了管理策略的实际实施和创新实践的采用。它强调了重塑中小企业商业模式以接受更具适应性的劳动分工的价值。此外,提出的集群战略是应对各种挑战、促进创新、区域发展和适应不断变化的商业环境的潜在解决方案。
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引用次数: 0
Development of an algorithm for code clone detection in source code based on abstract syntax tree 基于抽象语法树的源代码克隆检测算法的开发
Pub Date : 2023-08-29 DOI: 10.15587/2706-5448.2023.286472
Yevhenii Kubiuk, Gennadiy Kyselov
The object of research of this work is the algorithm for searching for duplicates in the program code based on the Abstract Syntaxes Tree (AST). The main tasks solved within the framework of this study are the detection of duplicate code and the search for vulnerabilities in the program code. The obtained results showed that the proposed algorithm is resistant to type 1 and 2 clones, which means its effectiveness in detecting similar code fragments with identical or variant text. However, for type 3 and 4 clones, the algorithm may show less efficiency due to the change in the AST structure for these types of clones. Experimental studies of the proposed algorithm showed that the algorithm can detect matches between unrelated files due to the presence of typical AST chains present in many programs. This can lead to a certain level of false positives in the detection of duplicates. Testing of the algorithm in the task of finding vulnerabilities showed that: The best recognition is observed for the «SQL injection» vulnerability, but it also has the highest number of false positives. Memory leak and null pointer dereferencing vulnerabilities are detected with equal effectiveness and false positives. «Buffer overflow» has the lowest recognition rate but fewer false positives compared to «SQL injection». The study showed that the use of AST allows for the effective detection of duplicate code and vulnerabilities in the software code. The developed tool can help software developers reduce maintenance efforts, improve code quality, and ensure software product security.
本文的研究对象是基于抽象语法树(AST)的程序代码重复项搜索算法。在本研究框架内解决的主要任务是检测重复代码和查找程序代码中的漏洞。实验结果表明,该算法具有抗1型和2型克隆的能力,能够有效地检测出具有相同或不同文本的相似代码片段。然而,对于类型3和4克隆,由于这些类型克隆的AST结构发生了变化,该算法可能会显示出较低的效率。实验研究表明,由于许多程序中存在典型的AST链,该算法可以检测出不相关文件之间的匹配。这可能导致在重复检测中出现一定程度的假阳性。在寻找漏洞的任务中对算法进行的测试表明:对“SQL注入”漏洞的识别效果最好,但它的误报次数也最多。内存泄漏和空指针解引用漏洞以相同的有效性和误报检测。与“SQL注入”相比,“缓冲区溢出”的识别率最低,但误报较少。研究表明,使用AST可以有效地检测软件代码中的重复代码和漏洞。开发的工具可以帮助软件开发人员减少维护工作量,提高代码质量,并确保软件产品的安全性。
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引用次数: 0
Comparison of fuzzy search algorithms based on Damerau-Levenshtein automata on large data 基于Damerau-Levenshtein自动机的大数据模糊搜索算法比较
Pub Date : 2023-08-28 DOI: 10.15587/2706-5448.2023.286382
Kyrylo Kleshch, Volodymyr Shablii
The object of research is fuzzy search algorithms based on Damerau-Levenshtein automata and Levenshtein automata. The paper examines and compares solutions based on finite state machines for efficient and fast finding of words and lines with a given editing distance in large text data using the concept of fuzzy search. Fuzzy search algorithms allow finding significantly more relevant results than standard explicit search algorithms. However, such algorithms usually have a higher asymptotic complexity and, accordingly, work much longer. Fuzzy text search using Damerau-Levenshtein distance allows taking into account common errors that the user may have made in the search term, namely: character substitution, extra character, missing character, and reordering of characters. To use a finite automaton, it is necessary to first construct it for a specific input word and edit distance, and then perform a search on that automaton, discarding words that the automaton will not accept. Therefore, when choosing an algorithm, both phases should be taken into account. This is because building a machine can take a long time. To speed up one of the machines, SIMD instructions were used, which gave a speedup of 1-10% depending on the number of search words, the length of the search word and the editing distance. The obtained results can be useful for use in various industries where it is necessary to quickly and efficiently perform fuzzy search in large volumes of data, for example, in search engines or in autocorrection of errors.
研究对象是基于Damerau-Levenshtein自动机和Levenshtein自动机的模糊搜索算法。本文研究并比较了基于有限状态机的解决方案,利用模糊搜索的概念在给定编辑距离的大型文本数据中高效快速地查找单词和行。模糊搜索算法允许找到比标准显式搜索算法更相关的结果。然而,这种算法通常具有较高的渐近复杂度,因此工作时间更长。使用Damerau-Levenshtein距离的模糊文本搜索允许考虑用户在搜索词中可能出现的常见错误,即:字符替换,额外字符,缺失字符和字符重新排序。要使用有限自动机,必须首先为特定的输入单词和编辑距离构造它,然后对该自动机执行搜索,丢弃自动机不接受的单词。因此,在选择算法时,这两个阶段都要考虑。这是因为制造一台机器需要很长时间。为了加快其中一台机器的速度,使用了SIMD指令,根据搜索词的数量、搜索词的长度和编辑距离,它提供了1-10%的加速。所获得的结果可用于需要在大量数据中快速有效地执行模糊搜索的各种行业,例如,在搜索引擎中或在错误的自动纠正中。
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引用次数: 0
Development of improved technology for producing graphene-like coating by LPCVD method LPCVD法制备类石墨烯涂层改进技术的发展
Pub Date : 2023-08-28 DOI: 10.15587/2706-5448.2023.286318
Artem Iatsenko
The object of research in this work was the coating of oxygraphene on a silicon single crystal substrate. In the work, the LPСVD (Low Pressure Chemical Vapor Deposition) method of deposition from the gas phase at low pressure is used to obtain graphene-like coatings on heat-resistant materials. A feature of the proposed LPCVD method in comparison with the classical method of deposition from the gas phase CVD (Chemical Vapor Deposition) by the method of catalytic decomposition of carbon-containing gas followed by the deposition of a graphene-like coating on a copper template is the use of a higher partial gas pressure, which leads to the deposition of graphene-like waste not only on the surface of the copper template-catalyst, but also in the entire volume of the reaction chamber and the materials introduced into it. A monocrystalline silicon template was used as a model for coating. The resulting coatings of different thicknesses were examined by scanning electron microscopy, Raman spectroscopy, and density was assessed by helium pycnometry. Based on the analysis of the results obtained using the method of scanning electron microscopy, the possibility of varying the thickness of the oxygraphene coating was shown. In addition, the formation of oxygraphene on a silicon single crystal substrate was confirmed by the Raman spectroscopy method, namely the presence of characteristic peaks in the spectra of the studied materials. Using the helium pycnometry method, a decrease in the density of the coated material from 2.25 g/cm3 to 2.08 g/cm3 was found. It was established that the greater the coating thickness, the lower the density. The general analysis showed that the developed LPСVD technology allows obtaining an oxygraphene coating on materials of any shape, porosity, size and resistant to temperatures above 600 °С in order to functionalize their surface and improve and improve their properties.
本工作的研究对象是在硅单晶衬底上涂覆氧化石墨烯。在这项工作中,使用LPСVD(低压化学气相沉积)方法从气相在低压下沉积,以获得耐热材料上的类石墨烯涂层。传统的化学气相沉积方法是催化分解含碳气体,然后在铜模板上沉积类石墨烯涂层。与传统的气相沉积方法相比,本文提出的LPCVD方法的一个特点是使用更高的分气压力,导致类石墨烯废物不仅在铜模板催化剂表面沉积,而且在整个反应室的体积和进入其中的物质中。采用单晶硅模板作为涂层模型。用扫描电子显微镜、拉曼光谱对不同厚度的涂层进行了检测,并用氦比重仪对密度进行了测定。在对扫描电镜结果分析的基础上,提出了改变氧化石墨烯涂层厚度的可能性。此外,通过拉曼光谱方法证实了氧化石墨烯在硅单晶衬底上的形成,即在所研究材料的光谱中存在特征峰。利用氦密度法,发现包覆材料的密度从2.25 g/cm3下降到2.08 g/cm3。结果表明,涂层厚度越大,密度越低。总体分析表明,所开发的LPСVD技术可以在任何形状、孔隙度、尺寸和耐600°以上温度的材料上获得氧化石墨烯涂层С,从而使其表面功能化并改善和改善其性能。
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引用次数: 0
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Technology audit and production reserves
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