bluuebunny/crossref_metadata_2025 huggingface dataset:
Erector spinae plane blocks for day-case medical thoracoscopy: a pilot clinical study
Authors: McPherson Jamie , Halvey Edward , Aujayeb Avinash
Published: November 2022

Objectives

Erector spinae plane (ESP) blocks are a regional anaesthetic technique used for pain relief in thoracic procedures. Our centre has recently begun using ESP blocks pre-medical thoracoscopy for analgesia.

Methods

Nine patients undergoing MT from September 2021 to February 2022 were included. Opioid use and depth of required sedation was recorded. Pre and post pain scores and at home were recorded by interview and review of charts. A functional pain questionnaire was administered via telephone.

Results

Average greatest depth of sedation using propofol was 1.92 (standard error of mean [SEM] 0.27), with remifentanil 2.52 (SEM 0.46). 78% required oral analgesia on day 0 post discharge. 55% required oral analgesia on post-op day 1. Patients used an average of 3.33 mg oral morphine (SEM 2.35) in hospital, and 3 mg (SEM 2) on post-op day 1. Periprocedural pain scores were 0.66 (SEM 0.27). Pain scores in recovery were 1.56 (SEM 0.76). Pain scores 3–12 h post discharge were 3.56 (SEM 0.7), while pain scores on post-op day 1 were significantly higher at 5.56 (SEM 0.90) (Figure 1). Functional pain scoring showed patients doing activities of daily living well with a good ability to breathe and cough. All felt that their pain was well controlled on the day of the procedure and at home. No complications were reported.

Conclusions

ESP blocks provide good analgesia. Pain scores showed significant analgesic effect lasting several hours. The project showed pain outcomes and patient acceptability were good for the use of regional anaesthesia.
Effect of the manufacturing process on the equivalency qualification of glass fiber reinforced polymer
Authors: Kim Dong-Chul , Choi Jeoung Sik , Shin Hyo-Soon , Jung InKyun , Heo Young Woo
Published: November 2022

Glass Fiber Reinforced Polymer (GFRP) is widely used as aerospace material requiring high specific strength, specific stiffness, and excellent mechanical and chemical properties. To apply the already approved composite materials to other processes, an equivalency test that compares the mechanical properties of the composite materials based on the database is required. For the successful completion of the equivalency test, it is important to control the factors affecting the mechanical properties. The resin content and density of the specimens are manufactured differently according to the process. The effect of these factors on the change of mechanical properties required for equivalency qualification has not been sufficiently reported. In this study, an equivalency test was performed on the GFRP applied to the aircraft radome based on the procedure of the equivalency test and acceptance test proposed by the National Center for Advanced Materials Performance. The causes of problems occurring between equivalency tests were analyzed. It was confirmed that the resin content, density, and voids of the specimen affect the mechanical properties. As the resin content decreases, the density and voids were controlled, and it was confirmed that the average strength and modulus increase by 13.12 and 6.78%, respectively. The equivalency qualification was completed by applying an improved process in which these factors were controlled.
Single-blind determination of methane detection limits and quantification accuracy using aircraft-based LiDAR
Authors: Bell Clay , Rutherford Jeff , Brandt Adam , Sherwin Evan , Vaughn Timothy , Zimmerle Daniel
Published: November 2022

Methane detection limits, emission rate quantification accuracy, and potential cross-species interference are assessed for Bridger Photonics’ Gas Mapping LiDAR (GML) system utilizing data collected during laboratory testing and single-blind controlled release testing. Laboratory testing identified no significant interference in the path-integrated methane measurement from the gas species tested (ethylene, ethane, propane, n-butane, i-butane, and carbon dioxide). The controlled release study, comprised of 650 individual measurement passes, represents the largest dataset collected to date to characterize GML with respect to point-source emissions. Binomial regression is utilized to create detection curves illustrating the likelihood of detecting an emission of a given size under different wind conditions and for different flight altitudes. Wind-normalized methane detection limits (90% detection rate) of 0.25 (kg/h)/(m/s) and 0.41 (kg/h)/(m/s) are observed at a flight altitude of 500 feet and 675 feet above ground level, respectively. Quantification accuracy is also assessed for emissions ranging from 0.15 to 1,400 kg/h. When emission rate estimates were generated using wind from high-resolution rapid refresh (HRRR) model (the primary wind source that Bridger uses for their commercial operations), linear regression indicates bias of 8.1% (R2 = 0.89). For 95% of controlled releases above Bridger’s stated production-sector detection sensitivity (3 kg/h with 90% probability of detection), the accuracy of individual emission rate estimates produced using HRRR wind ranged from −64.1% to +87.0%. Across all controlled releases, 38.1% of estimates had error within ±20%, and 87.3% of measurements were within a factor of two (−50% to +100% error). At low wind speed (less than 2 m/s) and low emission rates (less than 3 kg/h), emission estimates are biased high, however when removed do not impact the regression significantly. The aggregate quantification error including all detected emission events was +8.2% using the HRRR wind source. The resulting detection curves and quantification accuracy illustrate important implications that must be considered when using measurements from GML or other remote emission measurement techniques to inform or validate inventory models or to audit reported emission levels from oil and gas systems.
Appreciation of Form in Bach’s Well-Tempered Clavier
Authors: McDonald Geoffrey , Wöllner Clemens
Published: November 2022

While previous research has raised doubts about the ability of listeners to perceive large-scale musical form, we hypothesize that untrained and unfamiliar listeners can, indeed, recognize structure when cognitive form judgments (coherence and predictability) are differentiated from enjoyment ratings (pleasantness, interest, and desire to hear again). In a between-groups experiment, listeners (n = 125) were randomly assigned to hear one of four versions of Bach’s Prelude in C minor from Book I of The Well-Tempered Clavier: 1) the original; 2) a mildly scrambled one in which two larger sections were switched; 3) a highly scrambled one; and 4) a randomized one. Significant differences were observed between versions in ratings of coherence and predictability, but not in ratings of pleasantness, interest, or desire to hear again. Individuals who had played the piece before could also explicitly identify structural intervention. It was assumed that relative incoherence would result in higher complexity and, thus, be reflected in longer retrospective duration estimates; however, estimates did not differ between stimuli. These results suggest that untrained listeners can evaluate global form, independently of their level of familiarity with a musical piece, while also suggesting that awareness of incoherence does not always correspond with decreased enjoyment.
Fairwashing and Union Busting: The Privatization of Labor Standards in Mexico’s Agro-export Industry
Authors: Daria James
Published: November 2022

While Mexico’s agricultural exports have rapidly expanded over the past two decades, a strike by farmworkers in San Quintín, Baja California, in 2015 drew attention to the labor problems and workers’ demands in the industry. In response, foreign agribusiness corporations implemented private labor standards through fair-trade labels to address these problems in their global produce supply chains. Based on ethnographic research, I argue that these private standards fail to improve farmworkers’ labor conditions and instead serve to “fairwash” fresh produce and to prevent union organizing even when rights under Mexican law are violated. While fair-trade programs provide little empowerment to agricultural workers, I document how farmworkers have developed alternative visions of food justice through independent labor organizing.
Extracellular vesicles from seminal plasma to improve fertilizing capacity of bulls
Authors: Lange-Consiglio Anna , Capra Emanuele , Monferini Noemi , Canesi Simone , Bosi Giampaolo , Cretich Marina , Frigerio Roberto , Galbiati Valentina , Bertuzzo Federica , Cobalchini Francesco , Cremonesi Fausto , Gasparrini Bianca
Published: November 2022

Extracellular vesicles (EVs) contained in seminal plasma, vehicle RNA, proteins, and other molecules able to influence the biological function of sperm. The aim of this study was to improve the fertilizing capacity of male gametes of low-fertility bulls using EVs isolated by ultracentrifugation from the seminal plasma of a bull of proven fertility. After a dose–response curve study, 10×106 sperm of low-fertility bulls were co-incubated for 1 h with 400×106 EVs/mL. In addition, it has been verified that the incorporation of EVs, which takes place in the sperm midpiece, is maintained for 5 h and even after cryopreservation. Subsequently, the spermatozoa of low-fertility bulls, with EVs incorporated, were used for the in vitro production of embryos. The rate of blastocyst at seventh day yield in vitro, with the use of sperm with EVs incorporated, increased by about twice the yield obtained with the same sperm in the absence of EVs: bulls having an average embryonic yield of 6.41 ± 1.48%, 10.32 ± 4.34%, and 10.92 ± 0.95% improved their yield to 21.21 ± 1.99%, 22.17 ± 6.09%, and 19.99 ± 5.78%, respectively (P < 0.05). These encouraging results suggest that it might be possible to keep breeding bulls with poor fertility. Further studies will be needed to evaluate the in vivo fertility of sperm treated with EVs and understand how the content of EVs is involve in the sperm–vesicle interaction and in the improved sperm performance.

Lay summary

Sperm can fertilize eggs after they mature as they move through the tube in the testes. As they move, the sperm communicate with the lining of the tubes, thanks to small sacs which are made by the tube itself. These sacs contain many molecules that may play a part in the mechanisms that help sperm fertilize eggs. In veterinary medicine, as with humans, there are fertile and less-fertile individuals. It is possible that the sacs of the semen from a bull which is known to be fertile are different to those from a bull with low fertility. For this reason, sacs from bulls with proven fertility were mixed with sperm from the less-fertile bulls to test in the laboratory how the sperm was able to fertilize eggs and produce embryos. The results show that, in the laboratory, the number of embryos produced is doubled. This suggests it would be possible to improve the fertility of people who are less fertile.
A coleção Dois passos e um salto como processo de resistência
Authors: Lopes Maria João
Published: November 2022

Este trabalho pretende refletir sobre os livros juvenis da coleção Dois Passos e Um Salto, da editora Planeta Tangerina, do ponto de vista crítico adotado pelos Estudos Culturais, mas em diálogo com os Estudos Literários. Para tal, será preciso posicionar as obras tendo em conta não só o tecido literário, mas também outras camadas de leitura e análise. Situar-se-ão, nessa perspetiva analítica, as questões de legitimação, respeitantes às relações de poder entre cânone e periferia; as temáticas do hibridismo literário e da multimodalidade artística, nas suas vertentes de transgressão à ideia de género literário e de fronteiras entre linguagens artísticas; e, ainda, as dimensões da articulação entre a linguagem e as representações do mundo, atendendo em particular às dinâmicas de repetição e inovação. Não se pretenderá analisar exaustivamente todas as obras, mas antes fazer emergir delas outros caminhos interpretativos e perceber como podem igualmente constituir-se como processos de resistência.
Cold plasma synthesis of Zinc Selenide Nanoparticles for inhibition bacteria using disc diffusion
Authors: Mazhir Sabah N. , Abdalameer Nisreen Kh. , Yaaqoob Laith A. , Hammood Jwan Kh.
Published: November 2022

Zinc Selenide Nanoparticles (NPs) were fabricated by the aqueous techneque using cold plasma under atmospheric pressure with an exposure time of 3 min and a gas flow rate of 3 liters per minute. films' structural characteristics and morphological characterization were investigated by X-ray diffract meter, atomic force microscopy (AFM), and scanning electron microscopy (FE-SEM). In addition, parameter like crystal size were calculated. Results showed XRD patterns exhibits structure of polycrystalline of preferential orientation  (111) direction. SEM technique shows that the nanoparticles presented are spherical.  AFM image verified film formed spherical particles distribute uniformly. The antibacterial disc diffusion property of these Nanoparticles, was performed against Gram-negative bacteria of Escherichia coli and Gram-positive bacteria of Staphylococcus aureos, showing good control of said bacteria. The maximum level of inhibition in coli form bacteria with an average inhibition zone diameter with stapheloscous aureous, implying an increasing trend with increasing/decreasing loading volume of NC volume. Therefore, these nanomaterials, which can be prepared in a simple and cost-effective way, may be suitable for new types of germicidal materials.
Analysis of the Influence of Steam Electrification on the Working Processes of a Wet Steam Turbine
Authors:   A. Pidhornyi Institute of Mechanical Engineering Problems of NASU, Nechaiev Andrii V. , Tarelin Anatolii O. ,   A. Pidhornyi Institute of Mechanical Engineering Problems of NASU, Annopolska Iryna Ye. ,   A. Pidhornyi Institute of Mechanical Engineering Problems of NASU
Published: November 2022

The effect of steam electrification on the operation of a wet steam turbine, as well as the main processes sensitive to the electrification of the working fluid are considered in the paper. The types of additional losses caused by electrification are indicated. It is noted that these losses are not counted in the currently existing physical and mathematical models, since data on electrification are not taken into account and there is no possibility to make a clear theoretical description of the electrophysical model of a neutral steam even. In this regard, a simplified qualitative physical model of the electrophysical processes that occur during the electrification of the steam flow in the turbine was studied. Based on this, an assumption regarding the properties of the space charge in the steam flow, which is the source of the electric field and determines its intensity and spatial distribution in the flow part, is made. A qualitative analysis of the effect of the space charge field on the physical and thermodynamic properties of the steam flow was carried out with the set assumptions. It is proposed to perceive the process of steam polarization in the space charge field as the main result of its influence, and the dielectric constant of the steam – as the most representative parameter characterizing the thermodynamic state, including with the field influence. The thermodynamic relations of the operation of the dielectric in an electric field are given. The relation between the dielectric constant of steam and the change in the internal energy of the working fluid, its entropy and free energy is shown. It is theoretically substantiated that the influence of the electric field also leads to a change in the isobaric heat capacity and enthalpy. It is concluded that the process of expansion of the wet steam flow of charged steam in the turbine unit can be accompanied by a change in the main thermodynamic parameters of the working fluid, and therefore, its design characteristics can change, including the losses that occur in the process of expansion. On the basis of previously obtained experimental data on real turbines, a numerical assessment of the change in the thermodynamic parameters of the working fluid under the influence of an electric field is carried out. The performed numerical studies unequivocally indicate the need to take into account the phenomena caused by the electrification of the wet steam flow in the low-pressure cylinder in the existing physical and mathematical thermodynamic models of the wet steam expansion process, as well as to clarify the main thermodynamic parameters and calculated characteristics of the flow of electrified wet steam depending on the change in its dielectric constant.
Unconventional Narrative Structure and The Problem of Latency Phase in Peter Pan Novel
Authors: Oktafiyani Elve , Anindita Diva Salsabila
Published: November 2022

PurposeThis research aimed to explain the human’s latency phase through child characters in Peter Pan novel and its relation to the novel unconventional narrative structure. MethodThe research was qualitative using a descriptive case design. The novel’s intrinsic elements were analyzed to see the complexity of this children's literature that led to the analysis of the latency phase of the child characters through the make-believe play. The analysis made uses of Sigmund Freud’s concept of psychosexual personality development. Results/FindingsThis research found that the novel’s complexity came from its unconventional narrative structure such as the layered sub-plots, unique settings, and characters with complex personalities that were uncommon in children’s literature. It then led to the further analysis of the children who were processing their latency phase through their activities. Focusing on Peter as a captain and a father and Wendy as a mother, all the roles manifested their wishes and desires. ConclusionThe research concluded that the unique, inconsistent, and illogical points from the unconventional narrative structure could be explained through the analysis of the story’s issue about the latency phase, which shows complexity found despite its status as children’s literature.
Hegemonic Practices in Hussein Al-Wad’s Sa’ãdatuhu As-Sayyidul Wazĩr Novel
Authors: Handayani Rizqi , Junaid Ahmad Syafa’at
Published: November 2022

PurposeThis article aimed to describe the hegemonic efforts made by the ruling regime in strengthening its power, as recorded in the novel Sa'ãdatuhu As-Sayyidul Wazĩr. This article also revealed the social problems that occurred in Tunisia as a result of the application of the hegemony that was exercised during the regime of Zine El Abidine Ben Ali. MethodThis qualitative study used a library research design that relied on the novel Hussein El-Wad’s Sa’ãdatuhu As-Sayyidul Wazĩr as the primary data source, while the secondary data sources were various literature in the form of books, articles, websites and other information related to the research topic. Results/FindingsThe study revealed the problem of hegemonic practices carried out by authoritarian regimes for decades, both in civil society and political society. The long-standing authoritarian rule had resulted in the country to cope with various problems, such as rampant corruption, increasing unemployment rates, and the deprivation of civil rights of Tunisian citizens. ConclusionThe practice of hegemony as a power strategy carried out by the ruling regime, Zainal Abidin bin Ali, did not work well, as a result various social problems emerged which resulted in the collapse of power and public trust in his government.
KH. R. Ansnawi’s Thoughts on Nationalism Values against Colonialism and Imperialism
Authors: Setiadi Ozi , Lubis Zakaria Husin
Published: November 2022

PurposeThe research aimed to explore KH.R. Asnawi’s thoughts as one of Nahdlatul Ulama founders, on nationalism and patriotism values against colonialism and imperialism in Indonesia. MethodsThis qualitative study applied a historical research design relying on KH. R. Asnawi’s works as the primary data source. The secondary data sources included books and journals discussing KH.R. Asnawi’s thoughts of nationalism and patriotism values. The research also implemented Focus Group Discussion to understand his thoughts comprehensively. The data collected was then analyzed qualitatively using historical and political approaches Results/FindingThe study found that KH. R Asnawi’s thoughts of nationalism was fiqh centric that he was a religious nationalist figure. While the statesmanship values contained in his works included unity, justice, love for the homeland, and divine values. ConclusionThe study concluded that KH. R. Asnawi’s thoughts of nationalism and statesmanship values belongs to the integrism type influenced by theology, fiqh and pesantren education.
The Modular Irregularity Strength of C_n⊙mK_1
Authors: Dewi Putu Kartika
Published: November 2022

Let G(V, E) be a graph with order n with no component of order 2. An edge k-labeling α: E(G) →{1,2,…,k} is called a modular irregular k-labeling of graph G if the corresponding modular weight function wt_ α:V(G) → Z_n defined by wt_ α(x) =Ʃ_(xyϵE(G)) α(xy) is bijective. The value wt_α(x) is called the modular weight of vertex x. Minimum k such that G has a modular irregular k-labeling is called the modular irregularity strength of graph G. In this paper, we define a modular irregular labeling on C_n⊙mK_1. Furthermore, we determine the modular irregularity strength of C_n⊙mK_1.Keywords: corona product; cycle; empty graph; modular irregular labeling; modular irregularity strength. AbstrakDiberikan graf G(V, E) dengan orde n dengan tidak ada komponen yang berorde 2. Sebuah pelabelan-k sisi α: E(G) →{1,2,…,k} disebut pelabelan-k tak teratur modular pada graf G jika fungsi bobot modularnya wt_ α:V(G) → Z_n dengan wt_ α(x) =Ʃ_(xyϵE(G)) α(xy) merupakan fungsi bijektif. Nilai wt_α(x) disebut bobot modular dari simpul x. Minimum dari k sehingga G mempunyai pelabelan-k tak teratur modular disebut dengan kekuatan ketakteraturan modular dari graf G. Pada tulisan ini, didefinisikan pelabelan tak teratur modular pada C_n⊙mK_1. Lebih lanjut, ditentukan kekuatan ketakteraturan modular dari C_n⊙mK_1.Kata Kunci: hasil kali korona; lingkaran, graf kosong; pelabelan tak teratur modular; kekuatan ketakteraturan modular.
Nemzetbiztonsági felsőoktatási modellek - válogatott nemzetközi példák
Authors: Dobák Imre
Published: November 2022

Összefoglalás. Az egyes országok államigazgatásában sajátos
funkcióval rendelkező nemzetbiztonsági szolgálatok fontos szerepet töltenek be a
biztonság fenntartásában, a politikai színtéren megszülető döntések
információkkal történő támogatásában. Mindez képzett, a biztonságpolitikai és
technológiai környezet dinamikus változásait értelmezni és értékelni tudó, a
nemzetbiztonsági területen is korszerű ismeretekkel és megfelelő kompetenciákkal
rendelkező állományt igényel, amely képzési folyamatában egyre fontosabb szerep
hárul a felsőoktatási környezetre. Jelen tanulmány, nemzetközi példák alapján,
modelleket felállítva, az egyre inkább felértékelődő nemzetbiztonsági képzési
kapcsolatok felsőoktatásban való sajátosságait vizsgálja. Módszerként a
témakörben elérhető egyes nemzetközi intézményi és képzési rangsorok, valamint
az intézményekről elérhető szakirodalmi források vizsgálata jelent meg.

Summary. National security services, which have a specific role in
the administration of the countries, play important role in providing security
and supporting decisions in the political arena by information. This requires
trained personnel with up-to-date knowledge and competencies in the field of
national security, capable of understanding and assessing the dynamic changes in
the security and technological environment. In this process, the higher
education environment has increasingly important role. Concerning the
security-oriented higher education courses, it is difficult to determine whether
these can be considered as a form of “national security” higher education or
merely as an educational field of defense sphere. Apart from the sectoral
specificities, the main difficulty in making a comparison are the extreme
diversity in the interpretation of security and its interdisciplinary links. In
addition to trainings in the fields of intelligence studies and national
security studies, international security, security policy, the military elements
of security, and even the technical and cyberspace-related elements of
intelligence training, all provide valuable knowledge for the sector. However,
the international institutional examples of higher education in the field of
national security may be worth examining, as they essentially create a link
between the innovative knowledge of the academic world, which is the center of
knowledge, and the closed security sector, which is open to relevant knowledge.
In line with these ideas, the present paper explores the specificities of the
increasingly valorized national security training links in higher education by
setting up models based on selected international examples. The used methodology
is the examination of the international rankings of training programs available
on the subject, as well as of the literature available on institutions.
A létfontosságú rendszerek védelmére vonatkozó szabályozás fejlesztése
Authors: Mógor Mária Judit , Angyal István
Published: November 2022

Összefoglalás. Jelen cikk célja a létfontosságú rendszerek védelmére
vonatkozó szabályozás fejlesztési folyamatának és az elért eredmények
vizsgálata. A szerzők feldolgozták a kritikus infrastruktúrák nemzetközi és
hazai szabályozására jellemző, az elmúlt mintegy tízéves időszak változásait. Az
elemzés a hazai eredmények áttekintését követően a reziliencia, az ellenálló
képesség fejlesztésére irányuló nemzetközi és hazai intézkedéseket, a
közeljövőben várható fordulatokat, jogalkotási lépéseket ismerteti.

Summary. This article’s goal is to overview the development and the
results of the critical infrastructure protection regulation. The authors have
analyzed the legal circumstances of the past 10 years both on an international
and a national level.

After looking back at the initial regulations of the national critical
infrastructure and its enforcement the authors present the challenges of
Covid-19, the possible responses and the basic elements of the revised legal
framework.

The authors touch upon the changes that are important for the operators, such as
risk analysis and the operator security plan, emphasizing the exercises of the
latter.

The final part of this publication details the last decade’s change of approach
via the NATO’s seven baseline requirements for civil preparedness and the
preparation of the new EU directive. It will also exhibit the measures, that
were taken to improve resilience, and checks that were made to upgrade the level
of critical infrastructure protection.
Project management technology in creating a business process management information system at the present stage of development of the telecommunications sector of Kazakhstan
Authors: Yerimbetova Aigerim , Ayapbergenova Assem
Published: November 2022

The results of the study and the development of an effective business process management information system (IS) made it possible to conduct an analysis in the experimental conditions of an information technology (IT) company using project management tools in the field of information technology in the sphere of telecommunications.
A wide analysis of the mechanisms, models and systems for processing distributed spatial information using information technologies has been carried out, and it has been determined that none of the presented tools can fully satisfy the requirements for processing heterogeneous data when creating information systems.
A model for processing and managing heterogeneous spatial information based on data access technologies is constructed, a diagram of information flows is presented, and a mechanism for effective data management is described. The algorithm of the data processing module is presented, which allows access to any sources of information necessary for making a management decision. The methodology for designing an information system has been improved using a model for processing heterogeneous spatial information, taking into account the requirements for a decision support system.
This is done so that in the digital age, people focus on the production and trade of products and services through digitized data, information and knowledge. This new infrastructure not only helps people to do better and faster than in previous eras, but opens up new ways of control, coordination, and cooperation in activities with lower costs, regulated by the law of decreasing costs. That is, due to the properties of digital goods, the cost of a unit of marginal or additional output is gradually decreasing, while the number of all other factors of production remains constant.
Influence of the parameters of the pre-stressed winding on the oscillations of vertical cylindrical steel oil tanks
Authors: Tursunkululy Timur , Zhangabay Nurlan , Avramov Konstantin , Chernobryvko Maryna , Suleimenov Ulanbator , Utelbayeva Akmaral
Published: November 2022

This paper reports an analysis of the frequencies and shapes of oscillations of the tank with a volume of 3000 m3 with a winding of high-strength steel wire with a diameter of 3 mm, 4 mm, and 5 mm, applied in increments of 1:3. In addition, for the tension force of the turn in the range from 0.2 to 0.8 of the yield strength of the wire material. The study was carried out on the basis of a finite-element method in the ANSYS software package for a three-dimensional geometric model of the structure. At the same time, the software took into consideration the height-uneven width of the cylindrical wall taking into account the height of the filling to the maximum height and the tension forces of the winding.
It has been established that a change in the diameter of the winding wire does not lead to a significant change in the spectrum for the first ten significant frequencies. And an increase in the tension force of the wire in the winding leads to a decrease in the magnitude of oscillation frequencies. The exception is the sixth frequency. Its values are equal to one-tenth of a Hz for all estimated cases of the force of tension of the turn in the range from 0.2 to 0.8 of the yield strength of the wire material. The oscillation shapes of the tank reinforced by the winding have been determined. The change in the tension force of the wire in the winding does not change the number of waves at the circumferential coordinate at the free edge of the structure. We studied the loss of stability of the tank wall under distributed internal pressure. A comparative analysis of the sixth oscillation shape and the shape of stability loss reveals that they have the same number of waves at the circumferential coordinate.
The results reported here could make it possible to effectively use the pre-stress in order to detune the tank from the resonant frequency when operating in seismically hazardous areas
Development of computational method for matched filtration with analytical profile of the blurred digital image
Authors: Khlamov Sergii , Vlasenko Vladimir , Savanevych Vadym , Briukhovetskyi Oleksandr , Trunova Tetiana , Chelombitko Victor , Tabakova Iryna
Published: November 2022

A computational method for matched filtration with analytical profile of the blurred digital image of the investigated objects on digital frames has been developed. Such «blurred» objects can be the result of an involuntary shift of a fixed camera, an incorrect choice of the mode of guiding the telescope (diurnal or object tracking) or a failure of the diurnal tracking.
This computational method is based on the analytical selection of the typical form of the object’s image, as well as on the choice of special parameters for the transfer function of the matched filter for the blurred digital image, which makes it possible to evaluate the required parameters of the blurred digital image.
In addition, determining the number of Gaussians of the object’s image makes it possible to perform the most accurate assessment of the initial approximation of the parameters of their shape. Thus, matched filtration makes it possible to highlight the investigated objects with a blurred image of a typical shape against the background of substrate noise. Using the computational method of matched filtration makes it possible to improve the segmentation of images of reference objects on the frame and reduce the number of false detections.
The developed computational method for matched filtration with analytical profile of the blurred digital image of the investigated objects on the frames was tested in practice as part of the research of the CoLiTec project. It was implemented in the intraframe processing unit of the Lemur software for the operational automated detection of new and observation of known objects with a weak brightness. Owing to the Lemur software using and the proposed computational method introduced into it, more than 500,000 measurements of the various investigated objects were successfully processed and identified.
Identification of the pulse axisymmetric load acting on a composite cylindrical shell, inhomogeneous in length, made of different materials
Authors: Voropay Alexey , Gnatenko Grygoriy , Yehorov Pavlo , Povaliaiev Serhii , Naboka Olena
Published: November 2022

The problem of identifying the load acting on the elements of structures belongs to the class of inverse problems of the mechanics of a deformable solid, which are often incorrect. Solving such problems is associated with the instability of the calculation results, which requires the development of special methods for their research. This predetermines the relevance of this study.
The object of the study is a single-pass cylindrical shell consisting of two rigidly fastened butt-fastened sections made of different materials. Each of the shells is assumed to be elastic isotropic, having a cross-section of medium thickness. The equations of axisymmetric deformation of shells are used within the framework of Timoshenko hypotheses.
An approach to solving direct and inverse problems for such discretely heterogeneous objects is proposed, which implies the conditional separation of a discretely heterogeneous cylindrical shell along the length, followed by the addition of functions of fictitious loads. The main analytical relationships for building a system of integral Volterra equations are given, for which an analytic-numerical solution is derived.
The final ratios have been obtained, which make it possible to calculate the kinematic and force parameters of the study object in the process of non-stationary deformation. The inverse problem of identifying arbitrary loads acting on a shell that is heterogeneous in length is solved in a general form. An algorithm for the restoration of pulse loads has been developed, which is robust to errors in the initial data (about 5 %).
The material related to solving direct and inverse problems for shells that are discretely heterogeneous in length can significantly advance the methodology for identifying pulse loads acting on structural elements
Investigation of the relationship between the dynamics of GDP and economic sentiment index
Authors: Huseynova Arzu , Aliyeva Tarana , Rzayeva Ulviyya
Published: November 2022

The paper develops and presents an appropriate model toolkit that allows assessing the relationship between the calculated indices of economic sentiment and confidence for the main types of economic activity. The aim of the study is to experimentally substantiate the relevance of data on the opinions of technological economic agents and assess the value of this information for the statistical description and analysis of macroeconomic trends, including economic cycles and unforeseen and prolonged crises. The main hypothesis about the cyclical sensitivity of composite indices, in particular the index of economic sentiment in relation to the dynamics of the physical volume of GDP, is tested. The authors calculate a composite indicator of aggregate economic sentiment and, based on a consistent analysis of the relationship between the index of physical volume of GDP and the indicator of economic sentiment, identify aggregate empirical patterns and features of the cyclical development of technological enterprises. Accordingly, the turning points of the business cycle are discussed and the leading nature of the proposed index of economic sentiment is affirmed. The importance of the composite indicators in the economic analysis of entrepreneurial behavior in the implementation of technological innovations is shown.
The nature of the calculated Economic Sentiment Index was established, and its predictive capabilities for monthly and annual real GDP growth rates using autoregression and error correction models were investigated. The stages of calculating and setting indices with the application of the DEMETRA+ statistical package were implemented.
Devising a method for estimating the share of electricity consumption by a given consumer, which is provided from renewable energy sources
Authors: Lezhniuk Petro , Burykin Oleksandr , Kulyk Volodymyr , Malogulko Juliya , Polishchuk Andriy , Sytnyk Artur
Published: November 2022

One of the tools to confirm the origin of electricity sold in the retail market are the so-called Guarantees of Origin. They are the basis for calculating greenhouse gas emissions and reporting on carbon emissions and are the most sought-after by European enterprises.
The object of this study is the mechanism of labeling guarantees of the origin of electricity in electrical networks with renewable energy sources, taking into consideration their location and schemes of connection to the power grids.
Existing solutions for electricity labeling based on the certificates of Guarantees of Origin have a number of problems. They often do not accurately reflect carbon emissions, do not provide transparency and verifiability for end users because they do not take into consideration the physical processes of electricity transmission in the labeling system.
To solve this problem, a method has been developed that makes it possible to isolate from the flow of energy in each power transmission a component due to each connected energy source. As a result, the proportion of the load of each node of the electrical network supplied by a certain source of electricity is determined. To take into account the nonlinearity of the ratio between voltages in the nodes of electrical networks and flows in power transmissions, piecewise-linear approximation is used.
The algorithm for issuing guarantees of the origin of electricity has been improved. It takes into consideration not only indicators of the balance of electricity but also the results of assessing the volume of electricity supply to each consumer from renewable sources. Thus, the volume of sales of guarantees of origin is limited depending on the placement of consumers and their connection to the power grid. Directing proceeds from the sale of guarantees of origin to the guarantors of «green» subsidies will provide them with additional financial support to compensate for the costs of the «green» tariff
Characteristics of photovoltaic cells using monolike technology with technical and economical efficacy, and comparison with the traditional preparation method
Authors: Kalygulov Dastan , Plotnikov Sergei , Lay Philippe
Published: November 2022

The survey explores the potential for the creation of sun oriented cells from Kazakhstani p-type semiconductors, filtered by a metallurgical strategy utilizing the benefits of the mono-like innovation. As per the exploratory information, it tends to be seen that the successful lifetime shows low markers on the solar element taken from the upper piece of the ingots before the gettering system. This applies to multi-glasslike silicon cells. After phosphorus dispersion, an expansion in complete viability should be visible, which doesn't rely upon the material under study. Generally speaking, a decrease in the effective lifetime of charge carriers in silicon can happen because of the presence of a lot of metal impurities, which can create formations in the form of deposits in crystal defects or dissolve in silicon. It is shown that silicon developed by the mono-like innovation has a more drawn out transporter lifetime contrasted with standard mc-Si. Likewise, it was shown that during the time spent making a solar element, the lifetime of charge transporters builds because of the gettering impact without extra refinement processes. The benefits of the created innovation were seen at the degree of sunlight based cells, appeared in an expansion in proficiency and a reduction in the conveyance of effectiveness along the ingot level. All in all, it is shown that a solar cell made of mono-like silicon has a fairly low corruption of productivity when presented to light. Mono-like silicon sooner rather than later may turn into a forward leap in the photovoltaic business because of the great potential for the development of sunlight-based cells with high proficiency and a critical decrease in expenses
Devising a method for segmenting images acquired from space optical and electronic observation systems based on the Sine-Cosine algorithm
Authors: Khudov Hennadii , Makoveichuk Oleksandr , Khudov Vladyslav , Maliuha Volodymyr , Andriienko Anatolii , Tertyshnik Yevhen , Pashchenko Viktor , Parashchuk Dmytro , Khizhnyak Irina , Kalimulin Temir
Published: November 2022

The object of this study is the process of segmentation of images acquired from space optoelectronic surveillance systems. The method to segment images from space optoelectronic surveillance systems based on the Sine-Cosine algorithm involves determining the threshold level; unlike the known ones, the following is carried out in it:
– preliminary selection of red-green-blue color space brightness channels in the original image;
– calculation of the maximum distance of movement of agents in the image in each brightness channel;
– calculation of the values that determine the movement of agents in the image in each brightness channel;
– determining the position of agents in the image using trigonometric functions of the sine and cosine in each brightness channel.
An experimental study into segmenting images acquired from space optoelectronic surveillance systems based on the Sine-Cosine algorithm was carried out. It was found that the improved method of image segmentation based on the Sine-Cosine algorithm makes it possible to segment the images. In this case, objects of interest, snow-covered objects of interest, background objects, and undefined areas of the image (anomalous areas) are identified.
The quality of image segmentation was assessed using the Sine-Cosine algorithm-based method. It was found that the improved segmentation method based on the Sine-Cosine algorithm reduces the segmentation error of the first kind by an average of 21 % and the segmentation error of the first kind by an average of 17 %.
Methods of image segmentation can be implemented in software and hardware systems that process images acquired from space optoelectronic surveillance systems.
Further studies may involve comparing the quality of segmentation by the method based on the Sine-Cosine algorithm with segmentation methods based on evolutionary algorithms (for example, genetic ones).
Development of directions for modernizing means of technology transfer financing at the account of the non-banking financial market under martial law. the example of Ukraine
Authors: Shovkoplias Hanna , Shvydka Tetiana , Davydiuk Oleksandr , Klierini Harri , Sharenko Maxim
Published: November 2022

This study has revealed the inconsistency of the existing rules for regulating the process of financing technology transfer with the external geopolitical and economic challenges that Ukraine had to face. Including through the introduction of martial law and open armed aggression of the neighboring state. It has been substantiated that the current state of regulatory support for the process of financing and financial support for technology transfer does not meet the strategic interests of the state of Ukraine, the national economy, business, production, and society as a whole. The necessity of a significant expansion of the existing mechanisms for attracting free funds in relations related to the circulation of technologies in Ukraine has been proved. The existing restrictions on the capabilities of the non-banking financial sector in the implementation of financial support for the processes of creation, transfer of rights and implementation of technologies have been identified and systematized. An analysis of the feasibility of their weakening was carried out taking into consideration the interests of consumers of financial services and indirect financial investors. General potential directions, forms, and fundamentals, participation of the non-banking financial sector in the processes of financial support for technology transfer have been formed. These include investment, insurance, lending, financial guarantees, financial leasing, additional financing, and co-financing. The experience of the European Union in this area was analyzed.
As a result of the study, the main directions of modernization and change of the current legislation of Ukraine were proposed. These changes are aimed at creating preconditions for involving the non-banking financial sector (financial institutions and financial companies) in the processes of financial support for technology transfer in Ukraine.
Improvement of complex resource management of special-purpose communication systems
Authors: Koval Mykhailo , Sova Oleg , Orlov Oleksandr , Shyshatskyi Andrii , Artabaiev Yurii , Shknai Oleh , Veretnov Andrii , Koshlan Oleksandr , Zhyvylo Yevhen , Zhyvylo Iryna
Published: November 2022

The object of the research is a special-purpose communication system. The relevance of the research lies in the need for complex management of resources of special-purpose communication systems. The resources of the special-purpose communication system are defined as: spatial, temporal, frequency and hardware resources. Destabilizing factors include: intentional interference; denial-of-service cyber attacks and fire damage to individual elements of the special-purpose communication system. The method of complex management of resources of special-purpose communication systems was improved. The difference between the proposed method and the known ones is that the specified method contains improved procedures:
‒ determination of the impact of destabilizing factors on the special-purpose communication system;
‒ description of special-purpose communication systems of various architectures;
‒ determination of the rational route of information transmission and operation mode of communication devices in the general special-purpose communication system;
‒ consideration of uncertainty about the state of the special-purpose communication system;
‒ determination of the number of necessary forces and means of communication, which must be increased for the full functioning of the special communication system. The improved method provides a gain of 20‒26 % compared to classical approaches to the management of resources of special-purpose communication systems. The improved method can be used at the control points of the communication system of groups of troops (forces) while planning the organization of communication and at the stage of operational management of the communication system.