bluuebunny/crossref_metadata_2025 huggingface dataset:
A Study of Electronic Product Supply Chain Decisions Considering Quality Control and Cross-Channel Returns
Authors: Ren Haiping , Chen Rui , Lin Zhijun
Published: August 2023

This article focuses on the return problem of electronic products caused by the low level of quality control in the production process. Based on previous research, a centralized decision model (DM) and four kinds of decentralized DMs are constructed according to the differences in the supply chain decision order and the return loss bearers. Moreover, the impact of quality control on the return rate and market demand is also considered in the model research to achieve the optimization of the model. Using Stackelberg game knowledge to compare and analyze supply chain decisions, profits and influencing factors in different models, the final conclusions are drawn: (1) the decision is optimal and the profit is the highest in the centralized DM; (2) when the manufacturer dominates the supply chain decision, the difference in return loss bearers does not affect the supply chain decision and profit; (3) compared with other decentralized DMs, when the retailer dominates the supply chain decision and the manufacturer bears the return loss, the supply chain decision is better and the profit is higher; (4) the quality control level and the total profit in the five supply chain models are proportional to the quality control effect and the consumer perception of quality control. In addition, this paper introduces a joint contract to coordinate the supply chain under the decentralized DM and achieves the desired results. Finally, the relevant research findings and the validity of the contract are verified in the arithmetic analysis.
Abraham Model Solute Descriptors for Favipiravir: Case of Tautomeric Equilibrium and Intramolecular Hydrogen-Bond Formation
Authors: Yao Emily , Acree William E.
Published: August 2023

Experiment-based Abraham model solute descriptors are calculated based on recently published solubility data for favipiravir dissolved in 12 chemically diverse organic mono-solvents. The calculated descriptor values indicate that favipiravir engages in intramolecular hydrogen formation that renders the hydroxyl functional group on the pyrazine ring system unable to form intermolecular hydrogen bonds with the surrounding solvent molecules. Our study further shows that the existing group contribution and machine learning methods provide rather poor estimates of the experiment-based solute descriptors of favipiravir. Poor estimation likely occurs, in part, because the methods fail to account for the intramolecular hydrogen-bonds that are believed to be formed. In the current study, it was found that the solute descriptors estimated using three different methods provided rather poor estimates of the observed solubility behavior of favipiravir, with the overall average standard errors between the experimental and predicted molar solubilities exceeding 0.40 log units.
Live Z-Score Neurofeedback Training for PTSD: A Feasibility and Acceptability Study
Authors: Im Sungjin
Published: August 2023

Individuals with traumatic experiences may develop symptoms of post-traumatic stress disorder (PTSD) and co-morbid disorders, such as anxiety disorders, major depression, and substance use disorder. Although exposure therapy is considered the “gold standard” for the treatment of PTSD, dropout rates and patient distress are relatively high. One promising approach is live Z-score neurofeedback (ZNF) training, but clinical evidence is sparse. Thus, the current study aimed to evaluate the feasibility and acceptability of ZNF training among individuals with PTSD. After undergoing a diagnostic interview utilizing the MINI Neuropsychiatric Interview, nine patients with PTSD (7 females; mean age = 20.75 [SD = 2.38]) completed ten ZNF sessions, lasting 20 min each, and the PCL-5 at pre- and post-treatment. Over the course of the study, only a few minor study disruptions, adverse events, and patient complaints were reported, and participants rated high on feasibility and acceptability. Results from repeated measures ANOVAs suggest significant improvements in overall PTSD symptoms. Although these findings need to be replicated in larger samples with active control groups, the current study provides support that ZNF is a safe, acceptable, and potentially effective treatment for PTSD.
Characterization of Prunus Necrotic Ringspot Virus and Cherry Virus A Infecting Myrobalan Rootstock
Authors: Ben Mansour Karima , Komínek Petr , Komínková Marcela , Brožová Jana
Published: August 2023

Prunus necrotic ringspot virus (PNRSV) and cherry virus A (CVA) are two viruses that mainly infect plants of the genus Prunus. Full-length sequences of these two viruses, collected in the Czech Republic from Prunus cerasifera plants, were obtained via HTS sequencing. Phylogenetic analyses based on the NJ method and Splitstree tools showed that the Czech PNRSV isolate (ON088600-ON088602) is a divergent isolate from other molecular groups, sharing less than 97% pairwise nucleotide identity with members of other groups. The Czech CVA isolate (ON088603) belonged to molecular subgroup III-2, clustered with isolates from non-cherry hosts, and shared the highest pairwise nucleotide identity (99.7%) with an isolate of Australian origin.
Assessment of Community Knowledge and Practices towards Rabies Prevention: A Cross-Sectional Survey in Bharatpur, Chitwan, Nepal
Authors: Subedi Sanju , Adhikari Kishor , Regmi Devraj , Sharma Hari Krishna , Bolakhe Nishakiran , Kandel Milan , Subedi Deepak
Published: August 2023

In many developing countries, where rabies is prevalent among dog populations, humans are at risk of contracting the disease. Recent reports from Nepal suggest that around 30,000 cases of pet and more than 100 human rabies cases occur each year, with the highest risk being in the Terai, although these numbers may be underestimated. Knowledge and practices related to rabies prevention are crucial in combating the disease. However, there is not enough data on the understanding and preventive measures of rabies among the local population in Nepal. Therefore, this study aimed to evaluate the knowledge and practices regarding rabies prevention among the people of Bharatpur-12, Chitwan, Nepal. The study, conducted in February 2022, involved a cross-sectional survey of 271 respondents selected through systematic random sampling. A semi-structured questionnaire was used for one-on-one interviews. Among the surveyed respondents, a significant proportion (81.50%; n = 221/271) correctly understood rabies is zoonotic disease. Furthermore, 73.10% (n = 198/271) could correctly identify the animals susceptible to rabies, while 39.9% (n = 108/271) knew the causative agent. Additionally, 46.5% accurately listed the modes of transmission, and a majority (86.70%; n = 235/271) recognized the signs and symptoms of rabies in animals and humans. Overall, 42.06% (n = 114/271) of the respondents demonstrated satisfactory knowledge. Out of the 271 respondents, 22.9% (n = 62) owned pets, and 39.11% (n = 106) reported incidents of animal bites within their families, with dog bites being the most commonly mentioned (92.46%; n = 98/106). The majority (81.14%; n = 86/106) sought treatment on the same day as the incident occurred. About half of them (50%; n = 53/106) cleaned the wound with soap and water, while a small percentage (5.66%; n = 6/106) relied on traditional medicine as immediate first aid after an animal bite. The level of knowledge was found to be associated with gender (p = 0.04), educational status (p = 0.05), and family monthly income (p = 0.007). These findings highlight the importance of educating the community in Nepal about rabies control and prevention measures and underscore the need for targeted educational interventions to improve rabies awareness and the potential of effective awareness campaigns to save lives. Raising awareness about health-seeking behavior and community members’ role in controlling, preventing, and eliminating rabies is crucial.
MANAGERIAL PERFORMANCE MODEL OF INDONESIAN GOVERNMENT
Authors: Luthfi Musthafa , Albetris Albetris , Sumantri Sumantri , Triyono Aris
Published: August 2023

This study aims to determine the Managerial Performance Model of Regional Heads in Indonesia. This research is a quantitative research using WarPls 07 to process data. This research was conducted on the Government Indonesia. The sampling technique used is probability sampling technique . The sample is calculated using Slovin with an error rate of 5% where 230 respondents were selected . Test results The Effect of Managerial Performance on Political Will Perception , Servant Leadership on Political Will Perception , Public Service Motivation on Political Will Perception , Political Will Perception on Executive Job Satisfaction, Public Service Motivation Against Executive Job Satisfaction, Managerial Performance Against executive job satisfaction Through Political Will Perception, Servant Leadership Against executive job satisfaction through Political Will Perception and Public Service Motivation executive job satisfaction Through Political Will Perception has positive and significant influence , only Managerial Performance on Executive Job Satisfaction that shows Not there is positive and significant influence.This study can concluded that almost all variables have influence to performance managerial
ANALYSIS OF COMMUNITY PARTICIPATION IN DEVELOPMENT OF INDEPENDENT VILLAGE IN REGAT DISTRICT
Authors: Yusnedi Yusnedi , Ningsih Fitria
Published: August 2023

Community participation in village development activities is very important to note. The purpose of this study was to analyze community participation in building an independent village in Rengat District, Indragiri Hulu Regency. Descriptive qualitative research methods used in this study with data collection techniques using observation, documentation, and interviews. Stages of data analysis performed are data reduction, data display, and conclusion drawing / verification. The results showed that community participation in building independent villages in Rengat District, Indragiri Hulu Regency was considered not optimal, seen from the aspects (1) Community participation in the planning process; (2) Community participation in implementing development programs; (3) Community participation in creating employment; and (4) Community participation in increasing
NOTES ON THE BLOOD OF CHRIST IN DEVOTIONAL PANELS OF THE LAST JUDGMENT
Authors: Quírico Tamara
Published: August 2023

This paper intends to briefly present theological aspects regarding the Last Judgment, the role of Christian images in Late Medieval art and, connecting both topics, iconographic changes and developments in Italian visual representations of the Last Judgment, particularly in panel paintings, by the end of the Middle Ages. We aim to relate these changes mostly to their expected religious functions in the stimulus of private devotion.
BERNINI E A CRÍTICA DE ARTE: ENTRE O DIÁRIO DE PAUL FRÉART DE CHANTELOU E AS BIOGRAFIAS DE FILIPPO BALDINUCCI E DOMENICO BERNINI
Authors: Ragazzi Alexandre
Published: August 2023

Neste artigo são considerados trechos de textos que revelam características marcantes do pensamento crítico de Bernini sobre as artes. O Diário escrito por Paul Fréart de Chantelou a respeito da viagem de Bernini à França é o ponto de partida; entretanto, tendo em vista o projeto classicizante com o qual seu autor estava envolvido, foi preciso verificar se as declarações de Bernini ali apresentadas podem ser aceitas como verdadeiras. Para isso, esse conteúdo foi confrontado com outras fontes, principalmente as biografias escritas por Baldinucci e Domenico Bernini. Através dessa análise, procurou-se chegar à compreensão de algumas das ideias de Bernini sobre as artes, assim como, a partir dos conceitos de imaginação e memória, de um aspecto importante de seu modo operativo.
Analyzing the Natural Resource Extension Needs of Spanish-Speakers: A Perspective from Florida
Authors: Wyman Miriam , Escobedo Francisco , Varela Sebastian , Asuaje Cesar
Published: August 2023

Hispanics are the country's fastest growing minority group. The study reported here surveyed and assessed Extension agents from two demographically different regions in Florida on perceptions and attitudes about the need, quality, and dissemination of Spanish Extension materials. Results showed Extension programs are important sources of information for Spanish-speakers from a region with a high population of Hispanics. However, Extension agents do not feel adequately prepared to reach this audience, and resources are insufficient, especially on critical environmental topics relevant to the audience. The study demonstrates the need to develop regionally and culturally relevant Spanish Extension materials for urban Spanish-speakers.
Adapting Community and Economic Development Tools to the Study of Local Foods: The Case of Knox County, Ohio
Authors: Sharp Jeff , Clark Jill , Davis Gregory , Smith Molly
Published: August 2023

In this article we seek to identify how diverse community and economic development tools in the Extension portfolio might be adapted to the assessment of local food and farming developments. We report on an assessment of the economic development opportunities and impacts of local food system development in Knox County, Ohio. The data and analysis are drawn from several different sources, including demographic census data and retail and economic activity data. The assessment findings and the process of coordinating the assessment effort reveal some of the opportunities and challenges of Extension effectively supporting community development related to local food systems.
Stormwater Monitoring and Resident Behavior in a Semi-Arid Region
Authors: Dietz Michael , Abraham Jennifer
Published: August 2023

Stormwater from a small municipality in Utah was monitored for flow and phosphorus. A survey was also administered to ascertain potential behavioral impacts on stormwater. The majority (53.7%) of stormwater measured was non-storm related. It is suspected that summer irrigation was adding to baseflow. Concentrations of phosphorus were below national means, but were high enough to lead to excessive algal growth. Survey results showed that most residents (92.3%) fertilize their lawn, although very few (1.7%) use a soil test to determine if fertilization is necessary. The study highlights the need for monitoring, surveying and collaboration to address current stormwater issues.
Implementing and Assessing 4-H Educational Activity Kits for Children
Authors: Scheer Scott , Yeske Janine , Zimmer Bruce
Published: August 2023

Educational activity kits were developed and implemented through a statewide effort for 4-H Youth Development Extension programs serving 5-8 year-old children. The purpose of the kits was to promote life skills in children and assess the learning environment. Data was collected based on the observations of 577 children across 22 counties. Findings indicated life skills of subject matter knowledge, getting along with others, and decision-making were enhanced through activity kits. While contextual elements for positive youth development were present for: positive relationships with caring adults, opportunities for mastery/competence, emotionally and physically safe environment, and opportunities for engagement of learning.
Crossing Boundaries with Teamwork and Economics for Water Management
Authors: Falen Christi , Niebling Howard , Hazen Bill , Telford Mike
Published: August 2023

The Water Team used teamwork and economics to transcend water boundaries. Recommendations implemented and physical improvements extended the irrigation season by 16 days in 2008, increased potential farm profits, and increased water conservation. The Team is now poised to cross more boundaries, assembling data and coordinated plans for watershed management and groundwater recharge for larger geographic areas, watersheds, and organizations.
Teaching Child Care Providers to Reduce the Risk of SIDS (Sudden Infant Death Syndrome)
Authors: Byington Teresa , Martin Sally , Reilly Jackie , Weigel Dan
Published: August 2023

Keeping children safe and healthy is one of the main concerns of parents and child care providers. SIDS (Sudden Infant Death Syndrome) is the leading cause of death in infants 1 month to 12 months of age. Over 2,000 infants die from SIDS every year in the United States, and almost 15% of these deaths occur in child care settings. A targeted educational training was developed to teach child care providers about SIDS and the importance of safe sleep environments in child care. Statistical analyses indicated significant differences in participant knowledge and self-reported practices on pre- and post-tests.
The Clam Trail: Blending Science Education, Public Art, and Tourism
Authors: Muscio Cara , Flimlin Gef , Bushnell Rick
Published: August 2023

The Barnegat Bay Shellfish Restoration's Clam Trail is an award-winning scavenger hunt that combines science education, public art, and tourism. This family adventure has participants seeking out giant painted fiberglass clams, upweller clam nurseries, and points of interest in search of science facts to record on their forms. Upon returning these forms, the participants are given awards and chances at recognition. The project has been a very successful method of capturing the public's attention, as well as educating residents and tourists at the Jersey Shore about the Barnegat Bay and its watershed.
Pesticide Applicator Profiling: Using Polycom® Distance Delivery for Continuing Education and Characterizing Florida's Licensed Applicators
Authors: Fishel Fred , Langeland Ken
Published: August 2023

The University of Florida offers continuing education units (CEUs) via distance technology using Polycom® to meet requirements for applicators of pesticides to renew their licenses. A large statewide event conducted in 2010 also included a needs assessment of this group concerning CEUs. Results indicate that these applicators strongly prefer earning CEUs rather than retesting for renewal and that they don't mind short travel distances and paying nominal fees to attend programs. Distance delivery was a first-time experience for most in obtaining CEUs, and they were overwhelmingly positive about attending such an event in the future.
Designing a Competency-Based New County Extension Personnel Training Program: A Novel Approach
Authors: Brodeur Cheri , Higgins Cynthia , Gonzalez Sebastian , Craig Diane , Haile Tyann
Published: August 2023

Voluntary county personnel turnover occurs for a multitude of reasons, including the lack of job satisfaction, organizational commitment, and job embeddedness and lack of proper training. Loss of personnel can be costly both economically and in terms of human capital. Retention of Extension professionals can be improved through proper training or strategic techniques designed to increase employee critical competencies, socialization, and job satisfaction. The Delphi study reported here explored the perceptions of county extension faculty regarding job satisfaction, training competencies, social connectedness, and optimal training time frames over the first 3 years of hire.
Broadening Extension's Capacity—Comparing Extension Agents' and Environmental Educators' Perceptions of Needs and Barriers
Authors: Smaldone Dave , Boone Deborah , Selin Steve , See Amanda
Published: August 2023

Conservation and environmental education share similar goals with Extension and thus holds partnership potential for Extension. The study reported here compared the needs and barriers faced by environmental educators and Extension agents in West Virginia using a mail survey. Results indicated there were both similarities and differences in the needs and barriers of the two groups. It was also noted that EE groups and Extension agents were unaware of each other's programs and did not view each other as important sources of information. This represents an opportunity for the groups to network and connect in new ways.
Designing Nutrition Education Programs for Somali Audiences: The Role of Cultural and Religious Practices
Authors: Offelen Sara , Sherman Shelley , May Jill , Rhodes Felisha
Published: August 2023

A focus group of Somali immigrants was conducted as part of a larger study of underserved communities in Minnesota. The goal was to capture Somali women's personal experiences and views on nutrition. This understanding assists Health and Nutrition educators in assessing the quality and effectiveness of current programming efforts and making recommendations for future efforts. Study results indicate that Somali cultural and religious practices define family meal structure, food preparation, and food choices. One important finding was that participants were eager to learn about nutrition and asked specific questions about the nutritional value of foods they eat.
Strengthening Communities Through an Engaged Citizenry: Opportunities for Extension Programming
Authors: Civittolo David , Davis Gregory
Published: August 2023

Research shows the level and quality of public discourse is a key factor in a community's ability to affect change. Recently conducted Extension research shows that a large proportion of residents do not feel engaged in community decision making. Extension works with a variety of community partners on a daily basis. Targeting programmatic resources in ways that would help improve the level and quality of public discourse could leverage the impact of the many Extension programs we conduct in cooperation with our community partners.
Developing a Farmers' Market Volunteer Team in Lieu of a Paid Manager
Authors: Meeks Phil , Culp Ken
Published: August 2023

Rural farmers' markets unable to justify a paid manager may benefit from the development of a farmers' market volunteer team. This articles looks at sources of farmers' market volunteers, specific duties of such a team, and education and orientation requirements to ensure the success of these volunteers.
Use of Participatory Exercise for Modelling the Adoption of Organic Agriculture
Authors: Goswani Rupak , Ali Nasim
Published: August 2023

Participatory methods may prove helpful at the exploratory phase of developing a working adoption model for organic agriculture. A study carried out in selected areas of West Bengal, India employed innovative participatory methods for identifying farmers' perception regarding the attributes of organic agriculture and several farm- and farmer-related factors. Analysis of participatory exercises facilitated the development of a potential pool of factors that may be used for developing an effective adoption model for organic agriculture. The process helps develop econometric models that study the transition of chemical agriculture to organic agriculture.
Wisconsin Dairy Business and Production Survey: Comparison Between Farms Planning to Expand and Farms Not Planning to Expand
Authors: Cabrera Victor , Janowski Jay
Published: August 2023

The Wisconsin Dairy Business and Production Survey was conducted to provide a comprehensive assessment of Wisconsin dairy operations. Key differences between expanding and non-expanding dairies were highlighted, with additional focus on topics involving dairy expansion. Further priority was placed on maximizing the impact of a concurrent project concerning risk management in dairy production and expansion and the creation of a decision support system. Survey results highlight emerging trends among Wisconsin dairy farms and emphasize areas where further research and Extension programs are needed.
Challenges and Opportunities for New and Beginning Dairy Producers: A Pennsylvania Perspective
Authors: Holden Lisa , Hyde Jeffrey , Hilty Bradley , Cowan Erica
Published: August 2023

New and beginning dairy producers have challenges in building equity and developing strategies for sound succession plans. Dairy farm businesses are capital intensive, and an aging dairy farm owner population means that transition of these operations will be critical in the future. Focus groups with both senior farm owners and new dairy producers were used to better understand these challenges and to enable Extension professionals to create educational opportunities to meet the needs of new and beginning dairy producers. Keys for success that were identified included sound financial planning and purchasing animals as a strategy to grow equity.
Need For Methamphetamine Programming in Extension Education
Authors: Beaudreault Amy , Miller Larry
Published: August 2023

The study reported sought to identify the prevention education needs involving methamphetamine through survey methodology. The study focused on a random sample of U.S. states and the Extension Directors within each state, resulting in a 70% response rate (n = 134). Findings revealed that 11% reported they had received methamphetamine user prevention training and 23% had received safety training. Overall, perceived knowledge is low regarding methamphetamine production signs, use, state and federal laws, prevention resources, and identification of methamphetamine education resources. Yet perceived importance of the same topics is high, supporting the need for increased methamphetamine programming.
Turfgrass Management at Your Fingertips: Information Delivered Through "Smart" Phone Technology
Authors: McCullough Patrick , Waltz Clint , Hudson William , Espinoza Alfredo
Published: August 2023

Turfgrass managers and Extension professionals often require real-time, in-situ pest diagnosis, management, and recommendations. Advanced "smart" phones have become important tools for industry professionals and allow flexibility while traveling or away from the office. We have developed an application (app) for iPhone® and Blackberry® "smart phones" that allows access to a library of resources in the field. The Turfgrass Management application contains a full suite of weed, disease, insect, and turfgrass species resources. More than 2,500 subscriptions from over 30 countries have been downloaded. We present evidence of the usefulness of delivery of information through this mobile technology.
The National Board Basics Curriculum Project: A Leadership Capacity Building Tool for Boards
Authors: Barnes James , Lachapelle Paul
Published: August 2023

We explain in this article the need for board training in rural America irrespective of industry or government sector. We discuss how an assessment of training needs has led to the launch of a new project called the National Board Basics Curriculum (NBBC) project. In this project, we have identified four key core competencies that every board needs collectively to be a high-performance system. We provide preliminary results of our findings as a tool Extension educators can use with boards in rural communities. Extension educators can use these existing resources and many more developed through the NBBC project.
Exit Surveying of Interns: Demonstrating Impact on Young Professionals
Authors: Muscio Cara
Published: August 2023

Documenting impact is becoming increasingly important as funding becomes tighter for Extension programs. An exit survey for interns conducted via an online survey tool is an opportunity to collect information on knowledge and skill gains, as well as document changes in intentions and attitudes about future career paths. An exit survey conducted between 2006-2010 demonstrated increases in knowledge and skills related to coastal science. In addition, the internships enabled students to better define their career goals. There are many activities that we routinely participate in that could benefit from this type of impact data collection in addition to routine evaluation.
Getting Them in the Door: Strategies for Recruiting Latinos to Family Life Education Programs
Authors: Allen Kim , Gudino Alejandra , Crawford Christina
Published: August 2023

Extension has long been successful at recruiting and serving diverse audiences, and with the rapid growth of Latino families across the United States, many Extension professionals are discovering an increased need to recruit and serve Latinos. This article shares successful recruitment strategies incorporated in a project that recruited low-income Latino parents of young children. Strategies included 1.) Knowing your audience and gaining a strong understanding of the Latino culture, 2.) Strengthening relationships with organizations already serving Latino families, and 3.) Building relationships within the Latino community.
INFORMATION TECHNOLOGY FOR DETECTING FOREST FIRE CONTOURS USING OPTICAL SATELLITE DATA
Authors: Kashtan V.Yu. , Hnatushenko V.V.
Published: August 2023

The number of forest fires has increased significantly over the past ten years. It indicates that forest area estimates fires are a very urgent task today. The use of satellite-based data simplifies the process of assessing forest fires. The aim is to develop an information tech-nology for automated forest fire contours detection on digital optical satellite datas in con-ditions of non-stationarity and uncertainty based on convolutional neural networks. The most popular tools for forest fire analysis are considered. This work proposed using hotspots to identify all fire and smoke pixels for automated forest fire contour detection. It made it possible to obtain contour polygons of the corresponding areas with various attrib-utes: position, size, etc. The results are tested on Sentinel 2 satellite images of the Ávila re-gion. The proposed method has an overall accuracy of 94.3% for the selection of forest fires.
OPTIMIZING THE ACTION OF IEEE 802.11 COMPUTER NETWORKS AT SIGNIFICANT LEVELS OF BIT ERROR RATE
Authors: Khandetskyi V.S.
Published: August 2023

For a given level of noise, fragmentation of the frame’s data field increases the probability of transmitting each individual fragment. But this is accompanied by an increase in the rela-tive weight of overhead costs, i.e. the amount of service information that is necessary to sup-port the frame transfer process. We propose to determine the fragmentation optimum under condition of increased noise intensity by the maximum value of the product of fragmented frame successful transmission probability by the relative weight of overhead costs. The arti-cle presents detailed results of calculations of the optimality criterion dependence on the fragmentation coefficient at different levels of noise, which allow optimizing the process of fragmentation of the transmitted frames.
VERIFICATION OF THE COMPUTER DESIGN PACKAGE ELCUT ON THE EXAMPLE OF THE PROBLEM OF HEATING AN INDUCTOR WITH A TWO-LAYER INWALL
Authors: Кravets О.V. , Dukhnevich К.L.
Published: August 2023

The actual problem of researching the thermal field of an induction heater with a two-layer inwall for four pairs of inwall materials is solved; verification of the ELCUT automated de-sign package using pictures of temperature fields, isotherms and diagrams comparing the average temperature of the inwall in the outer and inner layers was carried out.
LAYOUT DESIGN OF A SYNAPTIC INPUT WITH DIGITALLY CONTROLLED WEIGHT COEFFICIENTS FOR A HARDWARE IMPLEMENTATION OF AN ARTIFICIAL SPIKING NEURON
Authors: Gnilenko A.B.
Published: August 2023

The layout design of a synaptic input with digitally controlled synaptic weight coefficients is presented as a building component of a spiking neuron hardware implementation. The de-sign is based on Leaky Integrate-and-Fire model of an artificial spiking neuron. The com-pact-sized layout is obtained using EDA tool with all necessary physical verifications ful-filled at every design stage. Layout versus schematic check and the simulation of signal waveforms at ports are performed based on the extracted netlist to validate the design.
ON APPLICATION OF FRAME-BASED APPROACH FOR INFORMATION SYSTEMS DEVELOPMENT
Authors: Lytvynov O.A. , Lytvynov M.O.
Published: August 2023

The work is devoted to specific of frame-based approach application for information systems development. Three-layered generator provided to make the process of multi-layered infor-mation systems development more effective and robust. The results of its application in the context of building more flexible and robust, testable and maintainable software are also discussed.
Improvement of low contrast images in the frequency domain using fuzzy intensification
Authors: Liudmyla Akhmetshina , Stanislav Mitrofanov , Volodymyr Haidara
Published: August 2023

Due to the variety of types of images, there are currently no universal methods that provide a guaranteed result of solving the problem of improving the quality of low-contrast digital images. Medical systems often produce images of insufficient quality for reliable visual analysis. In particular, X-ray images, characterized by low intensity, un-even background, high level of noise, poor contrast and weakly defined boundaries of structures, are particularly difficult to analyze and choose an effective processing meth-od. The paper presents the information possibilities of the method of processing half-tone medical images aimed at improving the contrast and increasing the detail of ob-jects of interest in order to increase the reliability of diagnosis based on them. The pro-posed algorithm is based on a multi-stage processing process, which includes the use of two-dimensional frequency Fourier transformation and the method of fuzzy intensifica-tion in the spatial domain. The use of two-dimensional discrete Fourier transformation changes not the im-age, but the form of its representation, converting the output signal into its components of different frequencies and amplitudes. In this form, it is much easier to carry out filter-ing or amplification of individual components of the signal. Fuzzy set theory has the ability to quantitatively and qualitatively model problems related to uncertainty and imprecision, which are always present in digital images. Their presence is determined both by the features of the physical processes of image forming systems and by the stage of creating a digital image. The application of the proposed method provides improved contrast and increased detailing of objects of interest and affects the reliability of visual analysis. Only the ar-guments of complex Fourier transform coefficients can be corrected. The method of fuzzy intensification is used as a refinement for the second stage of frequency conversion. The effect of frequency conversion parameters on the detail of the resulting image was stud-ied. The results of the algorithm are presented on the example of real X-ray images.
PRINCIPLES OF CONSTRUCTION OF THE INFORMATION AND CONTROL SYSTEM OF THE DEPARTMENT OF THE UNIVERSITY
Authors: Poliakov M.A. , Andrienko P.D. , Vittsivskyi I.Yu. , Poliakov A.M.
Published: August 2023

The concept of the information and control system of the university department, which trains specialists in the electrical engineering profile, is systematized. The principles of construction and the block diagram of such a system are proposed. The variants of application in the educational process are described. A feature of the proposed system is the integration of the computer and microcontroller educational infrastructure of the department with the "smart home" system of the premises of the university building.
Using the method of nonlinear recursive analysis for typifying electroencelography time series data
Authors: Vasily Belozyorov , Vadym Zaytsev , Oleksiy Pohorielov , Oleksandr Khyzha
Published: August 2023

This paper considers the issue of using the method of nonlinear recurrent analysis to the problem of typing information provided in the form of time series data of electro-encephalograms (EEG) taken from a patient. A technique for determining hidden infor-mation for this series and its use for constructing the corresponding recurrence diagram (RP) at the points of information retrieval are described. It is shown that the use of RP has significant drawbacks associated with the visualization of information on a com-puter monitor screen, so another way of research is proposed - the calculation of nu-merical indicators of RP. Their calculation must be carried out for each point of the sev-enth information, for which it was proposed to take the points (O1, O2, Pz) - these are the right and left occipital and parietal taps. The given RP indicators made it possible to typify the obtained data and determine the type of which was called "HEALTHY-RP", which distinguishes epileptic and non-epileptic EEG types.
Analysis of vulnerabilities and security problems of web applications
Authors: Olena Trofymenko , Anastasiia Dyka , Yuliia Loboda
Published: August 2023

The article provides a comprehensive analysis of vulnerabilities, methods, tools and problems faced by web application security testing. The analysis of scientific research in the field of web application security testing revealed a significant interest of scientists in finding effective ways to minimize site security risks and vulnerabilities. It was found out that the list of the most common web application vulnerabilities includes: broken access control, cryptographic failures, misconfiguration of security, SQL and other injections, insecure design, identification and authentication errors, etc. Specific features of the security vulnerabilities of web applications are highlighted. The problems faced by automated tools for web security testing are separately considered, namely the development of automated tools for web security testing, the use of RIA (Rich Internet Application) web applications, and the use of insecure cryptographic storage. Web application security risks can be associated with the design phase, the development phase, the deployment phase, and the maintenance phase. It is security testing that is used to identify these risks of the web application, to investigate the vulnerabilities and weak points of the web application. The conducted analysis of security vulnerabilities, methods and problems of testing web applications revealed the presence of different approaches to protect software products. A combination of manual and automated web application security testing techniques is advisable, starting with automated security testing and complementing it with manual penetration testing. A comprehensive approach should integrate testing into all stages of the software development life cycle. Such approach helps to use the most appropriate and effective available methods for the current phase of software product development.
Analysis of the transformation of the microstructure of axial billets after rolling
Authors: Balakhanova T.V. , Kononenko H.A. , Safronova O.A. , Safronov O.L. , Klynova O.P.
Published: August 2023

The task of improving the quality of metal products of large cross-sections pro-duced from continuous cast billets (CBS) is associated with a number of difficulties. These include the presence of internal defects in the macrostructure of the workpiece (axial looseness, porosity, liquation, crystallization cracks, etc.). Processing from the point of view of deformation of cast workpieces is necessary first of all to eliminate cast defects. An increase in working out contributes not only to the welding of existing mi-crodiscontinuities and, in this connection, to an increase in the density of the metal, but also to the extraction, crushing and reduction of the cross-section of the existing non-metallic inclusions. However, the dimensions of the elements of the primary structure, which are presented on the graphs, are also of the greatest importance. The smallest level of liquation is formed in the surface areas during crystallization. At the same time, as a rule, it is necessary to obtain a homogeneous structure in terms of grain size on the cross-section of large-sized metal products. A study of the features of the structure of axle blanks made of steel grade F (AAR M-101-2017 Axles, carbon steel, heat-treated) after longitudinal rolling on a TPA 5-12" pipe rolling unit with pilgrim mills in three crimping modes (1 mode: Ø 470 → Ø 380 → Ø 260 mm; 2nd mode: Ø 470 → Ø 420 → Ø 260 mm; 3rd mode: Ø 470 →Ø 260 mm). Determination of the features of the distri-bution of deformation work and the formation of the final structure after deformation according to the experimental modes of BLZ Ø470 mm per circle Ø260 mm is the pur-pose of the research. Samples for the structure study were taken both from the original BLZ and the finished draft axle along the entire cross-section. The greatest unevenness of the liquation background, which is observed in the axial blank manufactured using mode No. 1, is also manifested during the study of the microstructure of railway of the axes obtained by the indicated modes. It was determined that the uniformity of the grain structure is the highest after using mode No. 3 (Ø 470 →Ø 260 mm).
Alternative to mean and least squares methods used in processing the results of scientific and technical experiments
Authors: Ihnatkin V.U. , Dudnikov V.S. , Luchyshyn T.R. , Aleksieienko S.V. , Yushkevych O.P. , Karpova T.P. , Khokhlova T.S. , Khomosh Yu.S. , Tikhonov V.A.
Published: August 2023

The nomenclature of controlled parameters and norms of measurement accuracy determines the reliability of control and its laboriousness. On average, the labor-intensiveness of control is about 10% of the total labor-intensiveness of manufacturing objects, and in a number of industries it is much higher (aerospace engineering). The simplest task in determining a rational nomenclature of controlled parameters of ob-jects is the exclusion of excessive parameters, while it is necessary to determine the probability that the deviations of some Х2 parameter within the specified tolerances are the same as the deviations of the Х1 parameter within its specified tolerances. At the same time, inequalities are defined that determine the smallest value of this probability. The general principle of solving this problem is the determination of conditional proba-bilities (if two parameters are considered) P Р11, Р12; , or Р21, Р22. At the same time, if the obtained values: Р11, Р12, are more likely than (or equal to) the permissible value of Rdop, then it is advisable to control only parameter Х1, and exclude Х2 from the no-menclature of parameters. If: Р21, Р22 , are greater than (or equal to) the permissible value of Rdop, then Х1 is turned off. An example of the exclusion of a redundant control parameter is given. The method can be generalized for any number of parameters, for which it is necessary to use correlation matrices or a simple enumeration of parameter combinations. A computer program has been developed that can be used if the following information is available: 1) the number of controlled parameters (n); 2) values of toler-ances (Xni, Xvi), which parameters are subject to control; 3) numerical characteristics of distributions of parameter values within the specified tolerances - the average value of and the average squared deviation σХі,; 4) types of distribution laws of parameter values; 5) data on correlations between parameters and values of pairwise correlation coefficients ( rij ); 6) the value of the probabilities of control errors Р12, Р21 (with two parameters). Calculations should be adjusted as statistical data accumulate.
Implementation of startups during the training of specialists in the field of information technology
Authors: Karpenko N.V. , Statsenko V.I. , Fedoriatska N.I. , Kolomoiets I.I.
Published: August 2023

Now, the training of a specialist is considered as an output. When students enter higher education, the curriculum is drawn up for them, which is strictly followed throughout subsequent years, for example, four years for the bachelor. However, this approach does not suit motivated students who lack creativity along with actual knowledge. Thus, these students, in parallel with higher education, attend special courses in IT-companies. At the end of the course, students start working for an IT com-pany and lose motivation for further training at the university. The authors of the article offer a comprehensive approach to the introduction of startups in the educational process of universities during the training of specialists for the IT-field. Attraction to the educational process of stakeholders from IT-companies to solve actual problems will lead to the fact that students will be involved in the creative process, in which they will receive useful knowledge and skills not only in the specialty, but also learn to communicate in a team. The introduction of startups will lead to an increase in the number of motivated students, because students can for creativity to choose not only topics proposed by stakeholders, but also to offer their ideas. Close co-operation with stakeholders from the IT-field will lead to an improvement in the quality of the materials that teachers will offer students for training and will also allow univer-sities to earn on author courses and textbooks written by teachers. The authors of the article propose, together with start-ups to introduce flexible planning of the educational process for students who take part in start-ups, i.e. each motivated student will be able to engage in their educational trajectory and after graduation to obtain not only a di-ploma, But also certificates that will confirm the skills gained in startups. The article also indicates other benefits that each of the stakeholders will receive from the intro-duction of startups in the learning process.
TWO-STAGE METHOD FOR PARAMETER ESTIMATING IN UNKNOWN NOISE ENVIRONMENT
Authors: Vovk S.M.
Published: August 2023

This paper addresses the parameter estimation problem in the case of an unknown noise environment. A two-stage method consisting of the tuning and estimating stages is pro-posed for solving this problem. At the tuning stage, the estimator is tuned to the noise envi-ronment by minimizing the estimation root-mean-square error for a known data fragment in the space of the three free parameters; these free parameters allow modifying the behavior of the minimization problem objective function. At the estimating stage, estimation is car-ried out by solving the corresponding minimization problem using already tuned free pa-rameters. The features of the proposed method, including algorithms for the tuning and es-timating stages, are demonstrated for estimating a Gaussian pulse that slowly moves in the unknown noise environment and locates on a known constant background. The numerical simulations confirm the high performance of the proposed method.
Lexical analysis of program code
Authors: Sokol I.O. , Volkovskyi O.S.
Published: August 2023

The growing volume of technologies, the end of actively used development tools support, outdated API etc., entails the need of program codes conversion. In IT compa-nies and not only, often begged the question of deprecated software support, which cus-tomers continue to use, or translation of current software to actual technologies. It is more rational for programmers to use the conversion and save most of code base, than rewriting all software by hand, even if manual adjustment is needed. At this moment, there are few high-quality code conversion systems. Largely, conversion systems work well only with similar programming languages. The task of program codes conversion is a deep and complex topic. To convert the software code, you must first analyze, select components and form a structural representation. Any analysis of program code begins with lexical analysis. Although lexical analysis is considered a relatively simple step, it plays a key role in the entire system of analysis and transformation of software code, and also has a large number of both theoretical and practical features that require careful study. This article considers the definition of the lexical analyzer, its functional composition and principles of construction, provides key differences between the lexeme and the token. Two approaches have been proposed and considered to solve the search for tokens in the program code: regular expression search and finite state machine search. For these approaches, examples of the formation of search templates under cer-tain rules of vocabulary were given. As a result, the optimality of the use of determinis-tic finite state machines during the practical implementation of the lexical analyzer on real computing machines was substantiated.