bluuebunny/crossref_metadata_2025 huggingface dataset:
Potential risk quantification from multiple biological factors via the inverse problem algorithm as an artificial intelligence tool in clinical diagnosis
Authors: Huang Shih-Hsun , Peng Bing-Ru , Lin Chih-Sheng , Tsai Hui-Chieh , Pan Lung-Fa , Pan Lung-Kwang
Published: April 2023

BACKGROUND: The inverse problem algorithm (IPA) uses mathematical calculations to estimate the expectation value of a specific index according to patient risk factor groups. The contributions of particular risk factors or their cross-interactions can be evaluated and ranked by their importance. OBJECTIVE: This paper quantified the potential risks from multiple biological factors by integrated case studies in clinical diagnosis via the IPA technique. Acting as artificial intelligence field component, this technique constructs a quantified expectation value from multiple patients’ biological index series, e.g., the optimal trigger timing for CTA, a particular drug in blood concentration data, the risk for patients with clinical syndromes. METHODS: Common biological indices such as age, body surface area, mean artery pressure, and others are treated as risk factors upon their normalization to the range from -1.0 to +1.0, with a non-dimensional zero point 0.0 corresponding to the average risk factor index. The patients’ quantified indices are re-arranged into a large data matrix. Next, the inverse and column matrices of the compromised numerical solution are constructed. RESULTS: This paper discusses quasi-Newton and Rosenbrock analyses performed via the STATISTICA program to solve the above inverse problem, yielding the specific expectation value in the form of a multiple-term nonlinear semi-empirical equation. The extensive background, including six previous publications of these authors’ team on IPA, was comprehensively re-addressed and scrutinized, focusing on limitations, stumbling blocks, and validity range of the IPA approach as applied to various tasks of preventive medicine. Other key contributions of this study are detailed estimations of the effect of risk factors’ coupling/cross-interactions on the IPA computations and the convergence rate of the derived semi-empirical equation viz. the final constant term. CONCLUSION: The main findings and practical recommendations are considered useful for preventive medicine tasks concerning potential risks of patients with various clinical syndromes.
Physiotherapeutic effects of an innovative golf swing-assist device on discomfort and mobility in amateur golfers with low back pain: A randomized controlled trial
Authors: Park Chanhee , Kim Kyoungtae , Yoon Samwon , Park Ilbong , Cha Youngjoo
Published: April 2023

BACKGROUND: Although the biomechanical features of the golf swing are extremely determined, multiple joint movements with limited pelvic and thoracic rotation movement can cause injury to the golfer and are linked with low back pain (LBP). We have developed the Pulley Master machine (PM), which is designed to offer active movement evaluation and monitoring as well as repetitive and task-specific training. OBJECTIVE: The primary goal of the present research was to analyze the effects of PM and Transfer of Electricity-Capacitive and Resistive (TECAR) therapy on the lumbar pain scale and thoracic and pelvic mobility in amateur golfers with LBP. METHODS: Twenty-one amateur golfers with LBP (six females, mean age = 23.43 ± 2.36 years) were randomly assigned to either PM or TECAR groups for five days per week over one week. Clinical outcome measurements included pelvic and thoracic mobility as well as a pain rating scale. Statistical analyses were presented using the analysis of variance (ANOVA), and the statistical significance level was set at P< 0.05. RESULTS: ANOVA showed that PM outperformed TECAR in terms of pelvic and thoracic mobility as well as a pain rating scale. CONCLUSION: The results provide novel and encouraging clinical evidence that PM improves pain control and mobility in amateur golfers with LBP.
An automatic recognition method of nematode survival rate based on bright field and dark field experimental images
Authors: Zhang Nan , Zhang Wenjing , Wang Maoli , Li Guojun , Ning Junyu , Nie Yanmin , Xian Bo , Huang Zhihang , Chen Weiyang , Gao Shan
Published: April 2023

BACKGROUND: The survival rate of experimental animals is a very important index in chemical toxicity evaluation experiments. The calculation of nematode survival rate is used in many experiments. OBJECTIVE: Traditional survival rate quantification methods require manual counting. This is a time-consuming and laborious work when using 384-well plate for high-throughput chemical toxicity assessment experiments. At present, there is a great need for an automatic method to identify the survival rate of nematodes in the experiment of chemical toxicity evaluation. METHODS: We designed an automatic nematode survival rate recognition method by combining the bright field experimental image of nematodes and the dark field image of nematodes which is captured after adding Propidium Iodide dye, and used it to calculate the nematode survival rate in different chemical environments. Experiment results show that the survival rate obtained by our automatic counting method is very similar to the survival rate obtained by manual counting. RESULTS: Through several different chemical experiments, we can see that chemicals with different toxicity have different effects on the survival rate of nematodes. And the survival rate of nematodes under different chemical concentrations has an obvious gradient trend from high concentration to low concentration. In addition, our method can quantify the motility of nematodes. There are also significant differences in the motility of nematodes cultured in different chemical environments. Moreover, the nematode motility under different chemical concentrations showed an obvious gradient change trend from high concentration to low concentration. CONCLUSION: Our study provides an accurate and efficient nematode survival rate recognition method for chemical toxicology research.
Clinical efficacy of vibration stimulation therapy to relieve acute exercise fatigue
Authors: Xie Juncheng , Wang Junliang , Xu Gang , Li Shaoxiong , Wang Yongtao , Fu Meihong , Liu Guangtao , Ji Chaoning , Zhang Tao , Liu Shicheng , Liu Tangyi
Published: April 2023

BACKGROUND: Previous studies showed that local vibration stimulation therapy was effective in relieving fatigue, and the effects of different modes of vibration stimulation therapy were further investigated. OBJECTIVE: This study aimed to examine the effects of different vibration stimulation modes on relieving acute exercise fatigue based on the multiphysiological indicators such as heart rate variability (HRV), skin conductance level (SCL), and ratings of perceived exertion (RPE) subjective scale. METHODS: Sixty participants selected from the dragon boat team of the Shanghai University of Traditional Chinese Medicine were divided into acupoint stimulation group (20 participants), muscle stimulation group (20 participants), and control group (20 participants) by complete randomization. RESULTS: (1) RPE: both stimulation groups showed a significant increase compared to the control group. (2) Heart rate values: the difference between muscle stimulation group and control group was statistically significant; (3) SCL: the two stimulation groups had significantly higher and statistically significant differences in SCL (max) and SCL (mean) values compared to the control group; the muscle stimulation group had statistically significant differences in SCL (min) compared to the control group, and the acupoint stimulation group had statistically significant differences in SCL (v) compared to the control group; (4) HRV (hf): The difference between the acupoint stimulation group and the muscle stimulation group was statistically significant. CONCLUSION: (1) Both stimulation groups are part of vibration therapy, which can relieve sympathetic tension and regulate the vegetative nervous system’s relaxation effect. (2) The meridian-vessel theory may be related to the acupoint stimulation group. The low-level visceral regulation centers in the spinal nerve segment region, where the acupoints are located, trigger changes in autonomic tone and enhance parasympathetic nerve activity to relieve acute motor fatigue. (3) The muscle stimulation group may be due to the 30-Hz vibration frequency’s ability to raise muscle epidermal temperature, which increases blood flow and reflexively inhibits sympathetic excitation.
Clinical efficacy of the shallow puncture and more-twirling acupuncture method in migraine treatment and its effects on serum 5-HT and β-EP levels
Authors: Feng Xin-Xin , Huang Kai-Yu , Chen Lei , Zhou Kai
Published: April 2023

BACKGROUND: The incidence rate for migraine is 12% worldwide, and recurrence is common, which seriously affects the physical and mental health of patients. OBJECTIVE: To observe the clinical effect of Shallow Puncture and More Twirling method of acupuncture in treating migraine and its impact on serum 5-HT and β-EP. METHODS: A total of 76 patients with migraine were randomized into a control group and acupuncture group with 38 cases in each. In the control group, patients were orally administered flunarizine hydrochloride before sleep, 2 capsules once daily for 4 weeks. In the acupuncture group, Shallow Puncture and More Twirling method was adopted for the acupoints of Sizhukong (SJ 23), Toulinqi (GB 15) Shuaigu (GB 8), Xuanlu (GB 5), Fengchi (GB 20), Waiguan (SJ 5), Zulinqi (GB 41). Patients were given acupuncture 3 times per week for 4 weeks. Then, the total VAS (Visual Analogue Scale) scores, composite score of migraine, serum level of 5-HT and β-EP, and the clinical efficacy differences were observed before and after treatment and the side-effects were recorded among the two groups. RESULTS: The total VAS scores and composite score of migraine were significantly reduced among both groups after the treatment (P< 0.05), and the serum level of 5-HT and β-EP was significantly improved (P< 0.05). Compared with control group, the acupuncture group reported lower results in VAS score and migraine composite score (P< 0.05), and higher results in serum 5-HT and β-EP level (P< 0.05). The acupuncture group with shallow puncture and more twirling method showed a total effective rate of 86.5%, which is higher than the control group (78.4%). The difference is statistically significant (P< 0.05). CONCLUSION: Shallow Puncture and More Twirling method was superior to flunarizine hydrochloride in the treatment of clinical symptoms of migraine. Acupuncture also increases the serum level of 5-HT and β-EP in migraine.
Indian Digital Library Initiatives
Authors: Mukherjee Sankhayan , Patra Swapan Kumar
Published: April 2023

This study is a survey of digital library initiatives in India. The survey is based on the secondary information of about fifty digital libraries from their respective websites. The findings show that in most cases the actual conception of digital library in India is still in the nascent stage. The online subscriptions and linked to the third-party websites are also considered as a digital library. However, many digital libraries have not any proper search interface in their respective website due to improper arrangement of metadata. In some cases, they do not have their own digitized collection and provide some other’s collections or referred to their users to some third-party website. Moreover, there are many digital libraries which cannot be accessed outside (remote access) the organization. Moreover, the so-called digital libraries in India have not developed their own standards or are not following any global standards. However, the usage statistics for the government digital libraries are far better than the usage statistics of academic or public libraries. That is perhaps a positive sign of ‘digital governance’ and reaching the public. The regular website maintenance, remote access facility and proper training of information professionals are required for digital libraries in India. There are several important observations and policy suggestions that may be helpful for students, scholars, library professionals and the decision makers in the government.
The invention of strategy at the turn of the 18th to 19th centuries
Authors: Rapin Ami-Jacques
Published: April 2023

In the 1770s, two translations of a military treatise from Byzantine times introduced the concept of strategy into modern military terminology. This article examines the reasons why the concept first spread among German-speaking military writers and the conditions for its semantic evolution in the early 19th century
From Tech Hub to Banking Failure: Exploring the Implications of CBDCs on the Destiny of Silicon Valley Bank
Authors: Ali Hassnian , Aysan Ahmet Faruk , Yousef Tarik M.
Published: April 2023

The potential implications of central bank digital currencies (CBDCs) on Silicon Valley Bank (SVB) are vast, particularly when it comes to oversight of the bank. This paper aims to explore how the introduction of CBDCs could have impacted SVB and its eventual collapse. The introduction of CBDCs has the potential to disrupt traditional banking systems, which could impact the stability of the financial industry. However, CBDCs can also provide real-time monitoring and oversight, which could help to prevent bank failures. This paper examines the potential impact of CBDCs on SVB and how it could have been impacted by the real-time monitoring provided by the Federal Reserve. The findings suggest that the introduction of CBDCs could have helped to prevent the collapse of SVB by allowing for real-time monitoring and oversight. The implications of this research are significant, as it highlights the potential benefits of CBDCs in preventing future banking failures and strengthening financial stability.
A Proposed Heuristic for Guessing Distributions
Authors: Neuman Yair , Dayan Itzhak
Published: April 2023

How can a layman choose the least biased hypothetical distribution for approximating a real distribution? In this paper, we propose a simple rule of thumb for addressing this challenge. This rule of thumb involves choosing the distribution that maximizes the entropy under the constraint of rank order. For explaining this rule of thumb and its justification, we first show that “guesstimating” a real-world distribution is possible by using the “True Median”.
Pro-environmental behavior in sustainable tourism: the impact of using "Environmental feedback"
Authors:   University of Economics and Law, VNU-HCM, Vietnam, Nguyễn Linh Thị Phương , Nguyễn Anh Mỹ ,   University of Economics and Law, VNU-HCM, Vietnam, Hồ Như Thị Hoàng ,   University of Economics and Law, VNU-HCM, Vietnam
Published: April 2023

Numerous strategies have been used to promote sustainable tourism, such as building environmentally-friendly destination images or giving visitors gifts to enhance their pro-environmental behaviors. There is an effective and cost-efficient way called "environmental feedback" that can urge people to participate in green actions; however, it has not been given enough attention in the accommodation sectors. Using “environmental feedback” means providing information to explain the meaning of pro-environmental behaviors. This research aims to measure the impact of providing "environmental feedback" on tourist's choice of accommodation. The hypotheses were verified using the Randomized Controlled Trials method. In particular, respondents were randomly segmented into two groups: treatment group (307 samples with hotels displaying "environmental feedback"); control group (211 samples with hotels not displaying "environmental feedback"). The findings confirm the positive impacts of using "environmental feedback” on guest’s selection of hotels. In addition, the difference in price between sustainable accommodations and standard accommodations also influences tourist's choices.
Factors influencing students' intention to online course survey participation - A study at HCMC University of Technology
Authors:   Ho Chi Minh City University of Technology, VNU–HCM, Vietnam, Lê Hàng Cẩm Phương , Nguyễn Ngọc Bình Phương ,   Ho Chi Minh City University of Technology, VNU–HCM, Vietnam, Nguyễn Thị Thương ,   Ho Chi Minh City University of Technology, VNU–HCM, Vietnam
Published: April 2023

Universities are facing an increasing pressure to assess educational quality outcomes. Therefore, a specific way to evaluate teaching effectiveness is through surveying students at the end of each course. Schools are often concerned with the validity and reliability of student evaluations of teaching. Due to the small sample sizes, the data obtained from these assessments can lack statistical significance and the results can be biased. Low response rates to online student assessments of teaching are concerned and have been studied from many different perspectives. Therefore, this article explores the factors that affect the intention of answering the online course survey of students at Ho Chi Minh City University of Technology. The theory of planned behavior is the foundation of the theoretical model which is complemented by other elements. SEM is conducted on 324 survey samples of all faculties. The results show that the factors such as moral obligation, incentives, subjective norms, perceived behavioural control, e-learning accessing habits have an impact on the intention to online course survey participation and moral obligation carries the strongest weight.
The impact of overinvestment on firm performance of Vietnam’s listed companies
Authors:   Ho Chi Minh City University of Education, Vietnam, Nguyen Trong Nghia
Published: April 2023

The research investigates the impact of overinvestment on firm performance as well as the moderation role of debt policy and dividend policy towards the relationship between overinvestment and firm performance among listed companies in Vietnam. The research data are collected from the FiinPro Database which includes 548 non-financial companies listed on Hanoi and Ho Chi Minh Stock Exchange during the period of 2011 – 2019. The overinvestment variable is proxied by the positive value of error terms estimated from the Investment Demand Function. Because the research employs the dynamic model with the presence of the one-period lagged dependent variable as an independent one in the regression, the SGMM estimator is applied to help deal with the problem of endogeneity. The estimated results clarify that (1) overinvestment has a negative effect on firm performance, (2) debt policy and dividend policy can regulate overinvestment to help lessen the harmful impact of overinvestment on firm performance, and (3) firm performance shows significant discrepancies among 8 industries. The research findings make a considerable contribution not only to the academic aspect by giving an explicit explanation for both Agency Theory and Free Cash Flow Theory through demonstrating the association between debt policy or dividend policy and overinvestment but also to the practical aspect by giving some suitable recommendations to assist corporate enterprises in heightening their firm performance and assist investors in making more accurate investment decisions.
Study on the impact of transformation leadership on performance of small and medium enterprises in Can Tho City, Vietnam
Authors:   Can Tho University, Vietnam, Dinh Cong Thanh , Pham Le Hong Nhung ,   Can Tho University, Vietnam, Le Tan Nghiem ,   Can Tho University, Vietnam, Le Trung Ngoc Phat ,   Can Tho University, Vietnam
Published: April 2023

Transformational leadership is understood as a leadership style that enhances a sense of collective benefits for members of an organization. This study aims to analyze the impact of transformational leadership on the performance of small and medium enterprises in Can Tho city, Vietnam. This research is based on the theory and the four components of Transformational Leadership Theory (TLT) (Idealized Influence - II; Inspirational Motivation - IM; Intellectual Stimulation - IS; Individualized Consideration - IC), a review of related studies, and opinions from expert interviews to develop a research model. The primary data of the article was collected from a survey of 214 small and medium enterprises in the city. The data analysis methods used in this study include Cronbach's alpha reliability test, confirmatory factor analysis (CFA), structural equation modeling (SEM), and multigroup structural analysis. The article's research results confirm that the leaders of enterprises with a transformational style play a significant and positive role in the spirit of learning and sharing knowledge of the organization members, especially the micro-enterprises face many difficulties due to the lack of resources. Research results also show that thanks to the transformational leadership (TL) style and organizational learning (OL), it has made an essential contribution to organizational innovation (OI) as well as to improving operational efficiency (both financial and non-financial performance) for small and medium enterprises in Can Tho city. Based on the article's research results, the authors have proposed some characteristics of transformational leaders in small and medium enterprises in the city. In particular, the study emphasizes the influence of the individualized consideration and idealized influence factors in improving learning ability, contributing to organizational renewal and improving performance for small and medium enterprises in Can Tho city.
Factors that impact brand awareness of student events’ sponsors among students in Vietnam
Authors:   University of Economics and Law, VNU-HCM, Vietnam, Phan Lam Quỳnh , Vũ Trí Đức ,   University of Economics and Law, VNU-HCM, Vietnam, Trần Thảo Nguyên ,   University of Economics and Law, VNU-HCM, Vietnam, Nguyễn Thúy Vy ,   University of Economics and Law, VNU-HCM, Vietnam, Trần Gia Huy ,   University of Economics and Law, VNU-HCM, Vietnam
Published: April 2023

This study aims to determine and analyze the relationship between factors of sponsoring student events and brand awareness of the sponsors among students in Vietnam. Based on 3 related models: Determinants of Sponsorship Response Model, Sponsorship Evaluation Scale and Role of Sponsorships in Developing Brand Equity Model, this study generates a conceptual framework about factors that affect brand awareness of student events’ sponsors among students in Vietnam. Data of this study is collected by conducting a survey from students which obtains 473 valid responses. The reliability of the scale is assessed by Cronbach's Alpha test, EFA testing the accuracy of observed - variable grouping, and multivariate regression used to measure the impact of factors on brand awareness. Ultimately, the results illustrate that Brand Awareness is positively affected by 6 factors including "Status of the Event'', "Personal Liking for the Event", “Sponsor-Event fit”, “Attitude toward Sponsor”, “Sincerity of Sponsor”, and “Image of Sponsor”, and negatively affected by 1 factor “Ubiquity of Sponsor”; “Sponsor-Event fit” is the most dominant factor impacting on students' brand awareness.
The relationship between psychological capital, job satisfaction and organisational commitment of officers – Empirical Evidence from fisheris sub-department of Kien Giang province
Authors:   Hanoi University of Natural Resources and Environment, Viet Nam, Nguyen Nam Danh , Uong Thi Ngoc Lan ,   VNU University of Economics and Business, Viet Nam
Published: April 2023

The study aims to analyze the relationship between psychological capital, job satisfaction, and organisational commitment of officers woking at the Fisheries Sub-Department of Kien Giang province. The relationship between psychological capital, job satisfaction, and organisational commitment analysis through 237 questionnaires surveyed by officers woking at the Fisheries Sub-Department of Kien Giang province. By applying the exploratory factor analysis, confirmatory factor analysis, structural equation modeling, the study have determined that psychological capital has a positive effect on job satisfaction and organisational commitment of officers. The analysis results show that there is a positive relationship between the factors of psychological capital, job satisfaction, organisational commitment. The results show a correlation between job satisfaction and organisational commitment. Optimism is one of the important factors of psychological capital that it has the strongest correlation to job satisfaction and organisational commitment. The study suggested some significant policy implications for Fisheries Sub-Department of Kien Giang province to increase job satisfaction and organisational commitment.
The ‘responsibility to protect’ doctrine: Reviewing the Kyrgyzstan crisis in 2010
Authors:   International University - Viet Nam National University Ho Chi Minh City, Võ Huân Tường
Published: April 2023

Peacekeeping and human rights protection are two significant missions of the international community nowadays. However, the world is still facing difficulty in dealing with several international crimes, such as genocide, war crimes, ethnic cleansing, and crimes against humanity. This paper introduces contents of the ‘Responsibility to protect’ doctrine, an international legal norm that has been promoted since 2005 to help prevent the abovementioned crimes by applying intervention measures; the paper also analyses, evaluates the extent of effectiveness, limitations and positives when implementing this doctrine in practice, via the case of Kyrgyzstan riots in 2010, and proposes relevant recommendations. As a result, the ‘Responsibility to react’ and ‘Responsibility to prevent’ are the two contents of the ‘Responsibility to protect’ doctrine that indicate limitations in practice. It is recommended by the paper that there is a need for clearer mechanisms and detailed procedures containing steps for evaluating and guiding the implementation of appropriate measures in relevant stages/cases; this contributes to determining when a nation cannot or is unwilling to prevent conflicts from occurring (‘Responsibility to prevent’), and also to resolve issues of political will of states and/or regional/international organizations relating to the intervention (‘Responsibility to react’).
Increasing gear Pump Hydraulic Systems of Car and Tractor Machinery Durability by Decreasing Details Attrition, Which Create Radial Clearance
Authors:   Central Ukrainian National Technical University, Kuleshkov Yuriy
Published: April 2023

The research goal is the determination of rational radial clearance, with what details, which create radial clearance, attrition will be minimal and eventually provides gear pump hydraulic systems of car and tractor machinery durability increasing. Research gives the results of the dependence of working liquid losses through radial clearance. Determined main parameters, which have an influence on them, and conditions due to which working liquid losses will be minimal, which corresponds to the rational value of radial clearance and provides decreasing of details attrition, which creates radial clearance. Were found as the main parameters, which allow managing working liquid losses through radial clearances. They consist of gear tooth tops width, gear rotation frequency, and outer gear radius. Offered a new conditions determination method, in which working liquid losses through radial clearances will be minimal. Mentioned models include the presence of pressurized and frictioned losses compounds. Was found that increasing gear pump durability is able due to gears processing and further gear pump assembling made with guaranteed radial clearance in connection «body - gears» details, which excludes initial attrition of gear pump body in time of its enabling. Increasing radial clearance to sizes, in which abrasive parts of any sizes are able to frequently walk through avoiding body walls and gear teeth tops, helps to prevent the abrasive attrition phenomenon. Rational radial clearance provides free passage for almost all abrasive parts, which increases gear pump durability. Rational radial clearance determination allows for increasing the efficiency of technology of gear pump manufacturing by rationalizing tolerances for gears manufacturing, which allows for increasing gear pump durability.
Creation of a Multi-section Water Purification Filter With Automated Control of Membrane Pollution
Authors:   Junior Academy of Sciences of Ukraine Kirovograd Region, Kropyvnytskyi, Ukraine, Matlakh Nikita , Trushakov Dmytro ,   Central Ukrainian National Technical University, Kozlovskyi Oleksandr ,   Central Ukrainian National Technical University, Fedotova Marianna ,   Central Ukrainian National Technical University
Published: April 2023

The article is devoted to the creation of a multi-section water purification filter, which can be made by hand at home. At the same time it is necessary to apply in the filter the automated control of pollution of membranes in sections of the filter. The main purpose of the study is to develop a simple and cheap multi-section filter for drinking water purification. The filter must have different cleaning technologies with the possibility of its own manufacture and with the possibility of automated control of membrane contamination. The task of the research is to develop and manufacture a working model of a multi-section filter for drinking water purification. The design of the filter should be multi-section with membranes containing various fillers for water purification; simple and cheap to make at home. The design of the filter should provide for automated control of the degree of contamination of the membranes in the filter sections. By analyzing the existing common household water filters, the most optimal solution for developing your own design of a household water filter has been determined. As a result of the analysis, a working model of a three-section water filter was created. The first section of the filter contains a membrane with quartz sand, the second section contains a membrane with activated carbon powder, the third section contains a membrane with small pieces of shungite (or with small pieces of silicon). As a result of an experimental study of the filtration of contaminated water using a three-section filter was determined next. The weight of water after passing through the filter decreases due to the retention of substances with a density greater than that of water (solid impurities). Also, the filtered water became clear and stopped foaming when shaken. This confirms the efficiency of the proposed filter. The developed three-section filter can be used as a separate stand-alone water filter or in addition with household polypropylene water filters for quality filtration of impurities up to 1 micrometer.
The Theoretical Justification of Radiation-type Transformers in the Identification of the Grain Flow
Authors:   Central Ukrainian National Technical University, Kondratets Vasyl , Parkhomenko Yuriy ,   Central Ukrainian National Technical University, Parkhomenko Mihailo ,   Central Ukrainian National Technical University, Bokiy Andriy ,   Central Ukrainian National Technical University
Published: April 2023

The article is devoted to the theoretical substantiation of the type of beam converters in the identification of grain flow in planters. The working conditions of beam transducers in the process of sowing grain crops, types and characteristics of such transducers are considered. It is shown that the best characteristics are possessed by optocouples created on the basis of independent sources and receivers of infrared radiation in the form of silicon diodes operating in the range of 0.75...1.1 μm. This publication is aimed at the implementation of means of control during the sowing of grain crops, its topic is relevant. It is directed to the implementation of the program "Technical means of the new generation for agricultural production", included in the list of State targeted scientific and scientific and technical programs, defined by the law of Ukraine "On priority areas of development of science and technology". The publication examines the theoretical justification of the type of beam transducers in devices for identifying the grain flow formed by seeding devices of seed drills, in order to increase their resolution and quality of registration of discrete objects in the flow. As a result of the analysis of the conditions for identifying the grain flow when sowing grain crops, we come to the conclusion that it is advisable to use optocouplers from separate elements "radiation source"-"radiation receiver" of the infrared spectrum that work in the range of as beam converters. Based on the fact that the registration device includes dozens of discrete optocouplers, silicon light and photodiodes should be used as IR emitters and receivers, as they are the cheapest, simpler in circuit connection than photo transistors and sufficient to obtain the necessary resolution when registering and recognizing the flow of grains.
Technical Support of Hydroponics as a Progressive Type of Growing Vegetable Crops
Authors:   Central Ukrainian National Technical University, Vasylkovska Kateryna , Kovalov Mykola ,   Central Ukrainian National Technical University, Andriienko Olha ,   Central Ukrainian National Technical University
Published: April 2023

The aggravation of the food crisis and the impossibility of exporting agricultural products from the ports against the backdrop of the war in Ukraine only exacerbates the issue of food security. The purpose of writing the article is to substantiate the installation scheme for hydroponic cultivation of vegetable crops in closed soil conditions for obtaining stable harvests of vegetable crops throughout the year. To carry out research, a hydroponic plant that works on the principle of a nutrient layer (NFT) was developed and manufactured at the Department of General Agriculture of the Central Ukrainian National Technical University. The installation is designed for growing green vegetable crops. A coconut-agroperlite soil mixture was used as a substrate. The used installation is compact, provided with a lighting system and works in automatic mode. The useful area of the installation is 0.104 m2, so it is possible to grow from 40 to 112 lettuce plants at the same time. The use of a mineral solution in a hydroponic installation had a significant effect on the growth and development of lettuce plants and caused an increase in the area of leaf plates. In the experiment, the yield of Tudela variety lettuce was obtained - 4.9 kg/m2, which is 10-15% more than in soil conditions, and if the installation is used all year round - 5.0-5.5 times more. The advantage of the method is that there is no need to use fungicides. Since, without the presence of soil, there are no such pests as cabbageworm and sciaridis. And the biggest advantage is saving water and controlling the substances they absorb in the process of development. The latest systems of growing green vegetable crops in the conditions of hydroponic systems make it possible to harvest all year round, and in a much larger volume than under soil conditions. The developed design of the hydroponic system makes it possible to obtain a steady crop of lettuce plants when using a coconut-agroperlite soil mixture as a substrate. The proposed installation of the NFT system using a nutrient solution of mineral-biological preparations made it possible to obtain seedlings with a well-developed root system and an above-ground part with a yield of 4.9 kg/m2.
Increasing the Reliability of the Trailer of the Loader-Accumulator of the Transhipment
Authors:   Central Ukrainian National Technical University, Amosov Volodymtr , Sviren Mykola ,   Central Ukrainian National Technical University, Vasylkovskyi Oleksii ,   Central Ukrainian National Technical University
Published: April 2023

The use of hoppers-accumulators of transshipment makes it possible to increase the productivity of the collection and transport complex by approximately 20-50%. The towing device is one of the most responsible nodes of the hopper-accumulator. The productivity of the collection and transport complex depends on the perfection of its design, high strength and reliability. The purpose of the work is to increase the variable productivity of the collection and transport complex due to the improvement of the towing device of the hopper-accumulator of the transshipment BNP-30PP. The analysis of the features of the constructions of the towing devices of hoppers-accumulators of transshipment showed that the strength of the towing device depends on the weight of the trailer and part of the vertical component of the load. The coupling loop of the hopper-accumulator of the transshipment BNP-30PP, made in accordance with GOST 2349-75, quickly failed due to overloading by the vertical component of the force on the side of the drawbar of the trailer. "Pozhmashina" LLC replaced the coupling hinge with an improved version: a bracket with a spherical bearing, which failed after 350-400 hours of operation. Therefore, as a result of a joint discussion with the engineers of PE "Astarta Group" and the teachers of the Department of Agricultural Machine Building of the Central Ukrainian National Technical University, an optimal design was proposed and a drawing of the towing device of the hopper-accumulator of the transshipment BNP-30PP was developed. The real loads on the towing device of the BNP-30PP transshipment hopper-accumulator exceed the values allowed by the standards. The towing device developed by PP "Pozhmashina" LLC has design flaws that lead to deformation of the bracket and cracks in the metal. The improvement of the trailer device showed high reliability during the field operation of the BNP-30PP transshipment hopper-accumulator. The implementation of the development contributes to reducing the time spent on repair and maintenance of the hopper-accumulator and increasing the efficiency of the use of collection and transport complexes in the cultivation of agricultural crops.
ВПЛИВ ТРАНСНАЦІОНАЛЬНИХ КОРПОРАЦІЙ НА ЕКОНОМІЧНИЙ СВІТОГЛЯД В УМОВАХ КОНКУРЕНТНОГО ПРОТИСТОЯННЯ
Authors: Клименко Тетяна Анатоліївна
Published: April 2023

In the conditions of rapid development of globalization processes and competition in the world economic space, TNC has a significant impact on the economic outlook of society. The activities of many transnational corporations not only allow states to develop economically, but also such processes contribute to the solution of a large number of problems at the social level: environmental protection, development of medicine, improvement of education, increase in quality of life. Over time, TNCs change the economic worldview, therefore it is necessary to conduct a timely study of the activities of these companies in the conditions of modern competitive confrontation in order to identify the prospects of their management. The aim of the article is to analyze the state of transnational corporations and research their impact on the economic outlook in the conditions of modern competitive confrontation. Methodological basis of research was logical methods of information processing, statistical analysis, methods of system analysis, comparison. The basic hypothesis of research was the assumption that the efficiency of the national economy, economic outlook, level of integration and international competitiveness depend on the success of TNCs, because they are the largest players in the world economy. Presentation of the main material. The dynamics of TNC development are analyzed. It was determined that the geographical structure of TNCs is gradually changing in today's conditions. It has been studied that financial companies have gained clear advantages over industrial corporations in the competitive struggle, which as a result has a significant impact on the development of the economic outlook. Originality and practical meaningfulness of research. It is advisable to use the conducted research to increase the international competitiveness of the national economy by using the investment activities of TNCs in the conditions of deepening globalization. Conclusions. The state and the corporation are global "institutions" that have developed in various branches of the global economy and in various historical periods of the formation of the economic outlook. Both institutions can serve for the benefit of the population and contribute to its prosperity, or they can take destructive steps, not based on the concepts of morality and law.
ФОРМАЛІЗАЦІЯ МЕТОДИКИ ПРОГНОЗУВАННЯ ЗБУТУ ПРОДУКЦІЇ ПІДПРИЄМСТВ СІЛЬСЬКОГОСПОДАРСЬКОГО МАШИНОБУДУВАННЯ
Authors: Нехай Вікторія Василівна
Published: April 2023

The article is devoted to the study of the problems of the sales organization of agricultural engineering enterprises. The need to develop the growth potential of its volumes and improve the methodology of their forecasting, taking into account the participation of enterprises in integration associations, is considered urgent. The purpose of the study is to substantiate an innovative approach to the formalization of the method of forecasting sales of products of agricultural machinery enterprises. The object of the study is a complex of factors that affect the sales performance of enterprises. Methods used in the research: analysis and synthesis, grouping, economic-mathematical forecasting, statistical research, Delphi. Hypothesis: the use of the developed sales forecasting methodology will allow developing a sales policy that meets the threats of the market environment. Presenting main material. It is proposed to forecast the sales volumes of agricultural machinery enterprises taking into account the elasticity of demand, changes in sales volumes, and the capabilities of consumers. The use of the presented methodology does not negate the possibility of a selective approach in the selection of components for the formation of an individual selection of indicators for determining the sales forecast. Originality and practical significance of the research. The presented method of forecasting sales involves adjusting the forecast indicators for a number of parameters that take into account potential changes in the market and the fact of the joining of enterprises to the contract group and makes it possible to determine realistic, optimistic and pessimistic sales scenarios. Conclusions and prospects for further research. Effective functioning of agricultural engineering enterprises that integrate their efforts requires forecasting of product sales volumes. The developed methodology was supplemented with an implementation algorithm. The development of individual methods of sales forecasting for enterprises of various branches of production is considered promising
USING THE DATA OF THE AUTOMATED BALLISTIC INFORMATION SYSTEM «BALSCAN» TO ESTABLISH THE CIRCUMSTANCES OF CRIMINAL OFFENSES
Authors: Pyrih Ihor , Bidniak Hanna
Published: April 2023

У науковій статті досліджено функціонування балістичного обліку взагалі та зокрема автоматизованої балістичної інформаційної системи «BalScan» під час розкриття та розслідування кримінальних правопорушень. Підґрунтям роботи стали наукові погляди видатних вчених-криміналістів, нормативно-правові акти, судово-слідча та-експертна практика. Висвітлено завдання балістичного обліку, зокрема, встановлення фактів використання одних і тих же екземплярів зброї у разі вчинення кількох кримінальних правопорушень; виявлення зброї, яка застосовувалась у вчиненні правопорушень, серед вилученої, знайденої та добровільно зданої; при використанні правопорушниками втраченої нарізної або гладкоствольної вогнепальної зброї, що була на озброєнні органів поліції; встановлення зброї, зареєстрованої на об’єктах дозвільної системи тощо. Зазначено особливості формування кулегільзотеки, по-перше, це об’єкти, що мають безпосереднє відношення до події правопорушення, тобто вилучені під час проведення слідчих (розшукових) дій, по-друге, джерелами обліків є об’єкти, що використовуються для порівняльного дослідження. Доведено ефективність введення в експлуатацію комплексної системи балістичної ідентифікації «BalScan» Експертною службою МВС України та особливості її використання в умовах сьогодення. Акцентовано на перевагах її використанням поряд ії сталою обліковою базою. Наведені тези підтверджено результатами вивчення експертних висновки, матеріалів кримінальних проваджень та інтерв’юванням практичних співробітників.
ЗАСТОСУВАННЯ СПЕЦІАЛЬНИХ ЗНАНЬ ПРИ ВИЯВЛЕННІ І РОЗСЛІДУВАННІ ЗЛОЧИНІВ У СФЕРІ КОМП’ЮТЕРНОЇ ІНФОРМАЦІЇ ТА ВИСОКИХ ТЕХНОЛОГІЙ
Authors: Спіцина Ганна Олександрівна , Філіпенко Наталія Євгенівна
Published: April 2023

У статті проаналізовано концептуальні засади, погляди та ідей щодо розуміння сутності та форм застосування спеціальних знань при виявлення і розслідування злочинів у сфері комп’ютерної інформації та високих технологій, розглянуто її поняття. Досліджено співвідношення дотичних між собою понять «експерт» та «обізнана особа», адже однією з головних проблем, яку не можна оминути в рамках криміналістичного дослідження є неоднозначність як наукового розуміння, так і практичного застосування відповідного понятійно-категоріального апарату. На нашу думку, під «спеціальними знаннями» при виявлення і розслідування злочинів у сфері комп’ютерної інформації та високих технологій, розуміються пізнання в різних областях науки, в тому числі права, техніки, мистецтва і ремесла стосовно області комп’ютерної інформації та сфери високих технологій, отримані в рамках професійної або спеціальної освіти, професійної діяльності, що включають знання теорії, навички та вміння, і використовувані учасниками цивільного, арбітражного, адміністративного і кримінального судочинства з метою встановлення обставин, що підлягають доведенню по конкретній справі, в порядку, передбаченому відповідним процесуальним законодавством України.
SPECIAL TECHNIQUE OF LAW ENFORCEMENT AUTHORITIES AS A SEPARATE MEANS OF AVIATION SAFETY: THEORETICAL ASPECT
Authors: Kharaberiush Ivan
Published: April 2023

У роботі висвітлено роль і місце спеціальної техніки правоохоронних органів у забезпеченні безпеки авіаційних об’єктів. Виявлено чинники, що зумовлюють необхідність застосування спеціального обладнання в діяльності правоохоронних органів, що забезпечують авіаційну безпеку. Виявляється, що для забезпечення ефективної діяльності правоохоронних органів у протидії злочинності в умовах сьогодення важливим питанням є проведення наукових досліджень щодо визначення техніки як наукової категорії, яка є окремою дисципліною юридичної науки. Для визначення обсягу поняття «спеціальна техніка правоохоронних органів» використано метод виділення критерію. Виділяють критерії: семантика словосполучення; система; структура; практичне значення; схожість спецтехніки з обладнанням; схожість засобів спеціальної техніки з науково-технічними засобами, які використовуються в правоохоронній діяльності. Розглянуто феномен інформаційних технологій та їх значення для правоохоронної діяльності. Визначено перспективні напрями розвитку спеціального обладнання правоохоронних органів, що підвищить ефективність забезпечення авіаційної безпеки, – розробка та впровадження інтелектуальних систем.