bluuebunny/crossref_metadata_2025_split huggingface dataset:
Micro/nano manufacturing aircraft surface with anti-icing and deicing performances: An overview
Authors: Long Chen , Jinghang Xu , Xichun Luo , Zhanqiang Liu , Bing Wang , Qinghua Song , Yukui Cai , Yi Wan , Xiangyu Gao , Chunlong Li 
Published: November 2023

Abstract
The aircraft surface is prone to icing when flying under windward conditions. It is required to protect the aircraft surface from icing for flight safety. The anti-/deicing performance of aircraft surface is affected by the surface morphology and surface wettability. The hydrophobicity of aircraft surface with anti-/deicing performance is closely related to the surface energy. To satisfy the requirements of anti-/deicing surface processing, the micro/nano manufacturing technologies have been developed to fabricate anti-/deicing functional aircraft surfaces. The icing time and deicing efficiency for aircraft surfaces fabricated with micro/nano manufacturing technologies are dozens of times more than those manufactured by conventional anti-/deicing methods. In this study, the recent technologies of micro/nano manufacturing of anti-/deicing functional surfaces are reviewed. First, the extreme conditions during aircraft flight and the huge potential safety hazards of icing are introduced. Then, the principle of aircraft icing and mechanism of both anti-icing and deicing are summarized. Then, the current micro/nano manufacturing technologies for preparing anti-icing and deicing surfaces, including electrochemical, chemical, laser and wire-cut etching chemical, electrochemical, vapor and plasma deposition, and other processing methods are described. By summarizing the advantages and disadvantages of different preparation methods, guidance is provided for new methods of preparing anti-icing and deicing surfaces, in order to avoid disadvantages and promote advantages. Fabrication and characterization of nanocomposite materials and composite coatings/thin films with anti-icing and deicing properties are discussed. Finally, the development trend and application prospect of micro/nano manufacturing in the field of anti-icing and deicing are presented.
Φήμη in Herodian’s Roman History
Authors: Chrysanthou Chrysanthos S. 
Published: November 2023

AbstractThis article offers a usage study of the word φήμη throughout Herodian’s Roman History. It sets Herodian’s practice in a broader literary picture that includes other historians, but also epic and the novel, and then suggests that the extremely high frequency of φήμη in Herodian is unique among Greek-language historians and that Herodian is indebted to Latin-language historiography for this technique. The following sections examine how Herodian perceives the phenomenon of φήμη and makes it a salient feature of his historiographical strategy. The discussion shows that φήμη, regardless of its truth status, has multiple functions in Herodian’s narrative. First, it contributes to the portrayal of historical agents. Second, it is a crucial dramatic factor that signals turning points in the story and generates vividness and an atmospheric narrative. Third, it acts as a plot-driver in the story. Fourth, it has a role in the composition of the narrative by creating intratextual associations and narrative patterns. Finally, it has metanarrative ramifications, since there is a parallel between the use of φήμη by the historical agents and by Herodian himself. Overall, the analysis advances our understanding of Herodian’s narrative technique and his construction of historical truth.
Above the heteronormative narrative: looking up the place of Disney’s villains
Authors: Piluso Francesco 
Published: November 2023

Abstract
The article proposes a re-examination of the role and position of the so-called “Disney villains” within the narrative framework of animated films and popular culture as a whole. In the first part, the historical evolution in the representation of these villains will be explored according to the practice of “queer coding,” which involves attributing stereotypically queer traits to them without explicitly stating their gender and sexual identity. It will be observed how their non-conforming gender and sexuality, used to mark their moral deviance, challenge and defy dominant gender and narrative norms. It is precisely through their queer performance and camp aesthetic that “evil stepmothers,” “sissy-villains,” and “drag-queen-like” sea witches can emancipate themselves from their traditional roles as antagonists (narrative level) and as social outcasts (discursive level) to seize the spotlight through the screen (manifest surface). This study combines tools of Greimasian text analysis, including the canonical narrative schema and the generative trajectory of meaning, with Lotman’s theory and notion of “semiosphere,” to investigate the centrality and criticality of these “quillains” within the heteronormative narrative framework and the broader cultural context. To capture (or being captured by) the queer aspect of these characters and their stories, the invitation is to look at their visage not as a coded symbol of an underlying identity and truth, but as an image that exceeds any defined meaning thanks to its iconic power.
Legendre pairs of lengthsℓ≡ 0 (mod 5)
Authors: Kotsireas Ilias S. , Koutschan Christoph , Bulutoglu Dursun A. , Arquette David M. , Turner Jonathan S. , Ryan Kenneth J. 
Published: November 2023

AbstractBy assuming a type of balance for lengthℓ=87\ell =87and nontrivial subgroups of multiplier groups of Legendre pairs (LPs) for lengthℓ=85\ell =85, we find LPs of these lengths. We then study the power spectral density (PSD) values ofmmcompressions of LPs of length5m5m. We also formulate a conjecture for LPs of lengthsℓ≡0\ell \equiv 0(mod 5) and demonstrate how it can be used to decrease the search space and storage requirements for finding such LPs. The newly found LPs decrease the number of integers in the range≤200\le 200for which the existence question of LPs remains unsolved from 12 to 10.
Hyperglucagonaemia and amino acid alterations in individuals with type 2 diabetes and non-alcoholic fatty liver disease
Authors: Rix Iben , Johansen Marie L , Lund Asger , Suppli Malte P , Chabanova Elizaveta , van Hall Gerrit , Holst Jens J , Wewer Albrechtsen Nicolai J , Kistorp Caroline , Knop Filip K 
Published: November 2023

Aims
Hyperglucagonaemia contributes to the pathophysiology in type 2 diabetes (T2D), but the mechanisms behind the inappropriate glucagon secretion are not fully understood. Glucagon and amino acids are regulated in a feedback loop referred to as the liver–α cell axis. Individuals with non-alcoholic fatty liver disease (NAFLD) appear to be glucagon resistant, disrupting the liver–α cell axis resulting in hyperglucagonaemia and hyperaminoacidaemia. We investigated the associations between circulating glucagon, amino acids, and liver fat content in a cohort of individuals with T2D.

Methods
We included 110 individuals with T2D in this cross-sectional study. Liver fat content was quantified using 1H magnetic resonance spectroscopy (MRS). Associations between liver fat content and plasma glucagon and amino acids, respectively, were estimated in multivariate linear regression analyses.

Results
Individuals with NAFLD (n = 52) had higher plasma glucagon concentrations than individuals without NAFLD (n = 58). The positive association between plasma glucagon concentrations and liver fat content was confirmed in the multivariable regression analyses. Plasma concentrations of isoleucine and glutamate were increased, and glycine and serine concentrations were decreased in individuals with NAFLD. Concentrations of other amino acids were similar between individuals with and without NAFLD, and no clear association was seen between liver fat content and amino acids in the regression analyses.

Conclusion
MRS-diagnosed NAFLD in T2D is associated with hyperglucagonaemia and elevated plasma concentrations of isoleucine and glutamate and low plasma concentrations of glycine and serine. Whether NAFLD and glucagon resistance per se induce these changes remains to be elucidated.
Implantation in the lower half of the uterine cavity and decreased trophoblastic thickness can predict subsequent miscarriage: a prospective cohort study
Authors: Nancarrow Lewis , Tempest Nicola , Vinayagam Suganthi , Lane Steven , Drakeley Andrew J , Homburg Roy , Russell Richard , Hapangama Dharani K 
Published: November 2023

Abstract
Embryo implantation is vital for successful conception but remains to be fully understood. Trophoblast invasion is key for implantation, with anchorage and depth of placentation determined by its extent. There is a dearth of synchronous information regarding IVF, implantation site, and trophoblastic thickness (TT). Our aim was to determine whether pregnancy implantation site and TT, had an impact on outcomes of IVF pregnancies. This prospective observational study was undertaken at a tertiary referral UK fertility unit over 14 months, collecting data on implantation site and TT from three-dimensional (3D) images of the uterus following early pregnancy scan. Of the 300 women recruited, 277 (92%) had live births, 20 (7%) miscarried, 2 (0.7%) had stillbirths, and 1 (0.3%) had a termination. Significantly more pregnancies that resulted in miscarriage (7/20, 35%) were located in the lower uterine cavity when compared to ongoing pregnancies (15/277, 5%) (P < 0.01). TT was significantly higher in ongoing pregnancies when compared with those who miscarried (7.2 mm vs 5.5 mm; P < 0.01). Implantation in the lower half of the uterine cavity and decreased TT are significantly associated with an increased rate of miscarriage. Identification of those at risk should prompt increased monitoring with the aim of supporting these pregnancies.

Lay summary
Implantation of an embryo in the womb is vital for a successful pregnancy. We wanted to find out whether findings on an ultrasound scan in early pregnancy had an impact on outcomes of IVF pregnancies. Three hundred women were recruited to the study, 277 (92%) had live births and unfortunately 20 (7%) had a miscarriage, 2 (0.7%) had stillbirths, and 1 (0.3%) had a termination. Many more of the pregnancies that miscarried implanted in the lower part of the womb. The thickness of the infiltration of the pregnancy into the womb was significantly higher in the ongoing pregnancies. We concluded that implantation in the lower half of the womb and reduced infiltration of the pregnancy seen on scan are associated with an increased rate of miscarriage. We propose that when we identify those at risk, we should increase monitoring, with the aim of supporting these pregnancies.
The Synonymous Conjugate Personal Names by Profession: Formation, Semantics, Stylistics and Usage
Authors: Gaudinskaitė Danguolė 
Published: November 2023

The nominal names of persons belong to different categories of formation (for example, the names of persons possessing nominal features, the names of persons by profession, etc.). A total of 1,266 conjugate synonymous nominal derivatives (or possessing one of the components of nominal words) naming the persons by profession were collected from the Dictionary of Lithuanian Language and its electronic version, out of them 386 rows of derivative synonyms (derivative variants) were formed. The derivatives were analysed in terms of formation, semantics, stylistics and usage. To achieve the aim, the methods of derivation, semantic analysis, calculation, descriptive-analytical, substitution were employed. The analysis of the material shows that the rows of derivative synonyms (derivative variants) formed from the names of the persons by profession and close to them derivatives can be divided into semantic groups: denoting an object required for business and work or craft (53,37 per cent of all derivatives); the person’s own business and work or craft, a person who makes a product (36,79 per cent of all derivatives); a place specific to the work (9,84 per cent of all derivatives).
The analysis of the empirical material revealed that realia specific to ethnicity can be found in all semantic groups. Names of persons by profession can be associated with forest, plants, agriculture, animals, crafts, etc. The small number of usage of names of persons by profession suggests that they become uncharacteristic of the current language, either because the phenomenon itself no longer exists (then the names of persons also disappear) or because the phenomenon exists, but persons can be named differently (other formations are used).
Optimization of the accumulator tank filling modes of the xenon feed system for electric propulsion system
Authors: Yurkov Bohdan , Asmolovskyi Serhii , Pererva Viktor , Voronovskyi Dmytro , Kulagin Sergei 
Published: November 2023

The object of the study in this work is pressure spikes in the accumulator tank of the xenon feed system for electric propulsion. The presence of significant pressure spikes in the accumulator tank of the feed system causes a change in the mass flow and, accordingly, a significant deterioration of the thruster parameters - thrust, specific impulse and efficiency. The problem that was solved in this work is to find ways to reduce pressure spikes while minimizing the volume of the accumulator tank without using additional elements. The analysis of literary sources showed that the specified problem is typical and has not been solved for small-volume accumulator tanks yet. To solve this problem, theoretical and experimental determination of pressure spikes that occur during the work on feedback from sensors was carried out, and an improved method of filling the accumulator tank was proposed. As a result of research, it was determined that pressure spikes that go beyond the permissible range (±3 %) appear at an inlet pressure of 3.5 MPa. With an increase of inlet pressure, the pressure spikes also increase. As a result of research, it was found that for an inlet pressure of up to 3 MPa, it is appropriate to work on feedback from pressure sensors. For pressure values from 3 to 6 MPa, it is necessary to use the experimentally obtained formula to determine the accumulator tank filling time. For a pressure of more than 6 MPa, it is necessary to work in the bang-bang mode. The research made it possible to determine the optimal modes of filling the accumulator tank. Presented modes allow to use a small-volume accumulator tank with the minimization of the valve activations number, in which stable operation of the thruster is maintained. The conclusions obtained as a result of the research can be useful for most developers of feed systems for electric propulsion.
Development of the error reducing method for the determination of the alternating current amplitude without the use of current transformers
Authors: Neftissov Alexandr , Sarinova Assiya , Kazambayev Ilyas , Kirichenko Lalita , Biloshchytskyi Andrii , Kislov Alexandr , Andreyeva Oxana 
Published: November 2023

The object of the research is methods of current amplitude identification without using current transformers. Most solutions are built on reed switches, which have a limitation of the operation speed due to the mechanical nature of the reed contacts. Therefore, the time duration is a random variable with a significant variation. Thus, the problem that needs to be solved is the reduction of the error of current amplitude identification associated with the mechanical properties of contacts. According to the conducted literature analysis, the presence of contact bounce of reed switches increases the errors of sinusoidal current amplitude identification approximately up to 8–10 %. The mathematical modeling allowed us to investigate this phenomenon and research its influence on the method. The suggested model was then approved via in-situ modeling. Consequently, to reduce the errors of measuring the current amplitude via a reed switch, the replacement with an analog or discrete Hall sensor was proposed. A mathematical model of the discrete Hall sensor operation and a method for identifying the amplitude of the alternating current were developed. During the experiment, it was found that the analog Hall sensor has a limitation in measuring currents of large rates, at which the discrete sensor worked stably. Hence, the last was chosen. It is worth noting that the study of the behavior of the Hall sensor was limited to the value of the alternating current amplitude, four times the opening current with an average error of less than 3 %. The method suitable for discrete Hall sensors simplifies and reduces the cost of the measuring instrument design. However, the practical implementation of the suggested method requires also the application of devices concentrating the magnetic field on the Hall sensor surface
Improving the accuracy of a digital spectral correlation-interferometric method of direction finding with analytical signal reconstruction for processing an incomplete spectrum of the signal
Authors: Smailov Nurzhigit , Tsyporenko Vitaliy , Sabibolda Akezhan , Tsyporenko Valentyn , Kabdoldina Assem , Zhekambayeva Maigul , Kuttybayeva Ainur , Bektilevov Aldabergen , Kassimov Abdurazak , Abdykadyrov Askar 
Published: November 2023

A method of correlation-interferometric direction finding has been improved, which effectively solves the problem of radio direction finding of radio emission sources under conditions of exposure to one or two masking interference. The problem was solved using the selection of an unmasked fragment of the spatial spectrum of the signal and the reconstruction of the missing samples of its signal group. As a result of the synthesis of the proposed method, estimates of signal samples were obtained as exact solutions to the proposed energy balance equations. The resulting solutions provide a significant increase in the signal-to-interference ratio and, accordingly, direction-finding accuracy without increasing the number of reception channels of the antenna array. As a result of the simulation, the dependences of the standard deviation of the bearing estimate on the signal-to-noise ratio in the presence of interference were built. Under the influence of one or two masking interferences and a signal-to-interference ratio of 0 dB, the use of the known direction-finding method without interference selection produces an anomalously large direction-finding error of more than 0.42 degrees, which is practically independent of the signal-to-noise ratio. The direction-finding method with selection of spectral signal samples masked by interference reduces the direction-finding error to 0.22 degrees when exposed to one interference and to 0.3 degrees when exposed to two interferences. This is due to the presence of power losses of the usable signal during the selection of its samples masked by interference. The proposed method of direction finding with reconstruction of signal samples provides a significant gain in accuracy by 3–30 times compared to the method of selection of masked samples in the range of changes in the signal-to-noise ratio (–20.5) dB. The direction-finding error of the proposed method decreases with increasing signal/noise according to a hyperbolic dependence. It is advisable to use the proposed direction-finding method when masking no more than two samples of the signal group
Innovative and financial modernization of transportation system based on international technology transfer
Authors: Kоsova Тetiana , Smerichevskyi Serhii , Antypenko Nadiia , Mykhalchenko Oleksii , Raicheva Larіsa 
Published: November 2023

The object of the study is the process of innovative and financial modernization of the transport system based on international technology transfer. The problem of innovative foundations of strengthening its competitiveness in the conditions of integration into the EU has been solved. The main results obtained: disclosure of the innovative essence of technology transfer, substantiation of the organizational and economic mechanism and systematization of demand factors of the transport system for technology transfer, its financial and investment support.
The obtained results are illustrated by a system of qualitative and quantitative indicators. It was established that during 2010–2019, the share of spending on the GDR in the national GDP decreased from 0.75 % to 0.43 %, but at the EU level it increased from 1.92 % to 2.14 %. The high dependence of countries on the transfer of technologies and innovations due to the negative values of their export and import balances has been proven. Their main share in 2020–2021 in the country falls on licenses – 51.39 % and 44.48 %, respectively, as well as franchises and trademarks – 38.55 % and 39.51 %, respectively. The results are explained by the lack of financial resources for the implementation of innovations, the lack of scientific research, etc.
The peculiarities of the conducted research are the use of a dynamic approach for the provision of a balance between innovations and sources of their financing, of strengthening the competitive positions of the transport system in the conditions of European integration. The scope of the results is the development of strategic innovative foundations for the transport system, and the conditions for their practical use are promising tools for financial and investment support.
Development of an augmented Damerau–Levenshtein method for correcting spelling errors in Kazakh texts
Authors: Mukazhanov Nurzhan , Alibiyeva Zhibek , Yerimbetova Aigerim , Kassymova Aizhan , Alibiyeva Nursulu 
Published: November 2023

The presented paper is devoted to the development of a method for identifying and correcting spelling errors in Kazakh texts. In this paper, the study object is methods for more accurate correction of spelling errors in Kazakh texts. The aim of the study is to develop an augmented version of the Damerau-Levenshtein method for correcting spelling errors in Kazakh language texts. Automatic detection and correction of spelling errors have become a default feature in modern text editors for working with text data, in text messaging applications such as chatbots, messengers, etc. However, although this task is well solved in geographically widespread languages, it has not been fully solved in languages with a small audience, such as the Kazakh language. The methods developed so far cannot correct all spelling errors found in Kazakh texts. Therefore, the development of a method with specific algorithms for spelling error correction in Kazakh texts is considered. As a result of the research work, algorithms for correcting errors found in Kazakh language texts were developed, and the developed algorithms were included in the Damerau-Levenshtein method. The experimental testing results of the augmented Damerau- Levenshtein method showed 97.2 % accuracy in correcting specific errors found only in Kazakh words and 92.8 % accuracy in correcting common errors from letter symbols. The standard Damerau-Levenshtein method testing results showed 76.4 % accuracy in correcting specific errors found only in Kazakh words. The results of the tests in correcting common errors from letter symbols with the standard Damerau-Levenshtein were approximately the same with the augmented Damerau-Levenshtein method, the accuracy is 92.2 %. The extent and conditions of practical application of the results are implemented by including them in text editors, messengers, e-mails and similar applications that work with text data.