bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Weathering on the Structural Performance of Sheathing-to-Timber Connections
Authors: Cowled Craig J. L. , Slattery Tom P. , Crews Keith , Brooke Harrison 
Published: April 2023

The sheathing-to-timber connection (STC) is a critical component of timber-framed shear walls. The STC provides the shear wall system with its racking resistance, while anchors and tiedowns provide resistance to sliding and overturning, respectively. Because building materials are exposed to weathering during construction, this study aims to quantify the influence of weathering on the structural performance of STCs. To achieve this aim, a total of 117 small-scale specimens were fabricated with 5 different sheathing types and 2 different timber species. Each specimen comprised 2 panels of sheathing connected to 2 short lengths of pine timber (90×35 mm cross-section), with a total of 16/2.8ϕ×30 mm (l) galvanised clouts at 45 mm spacings. Some specimens were tested under the EN 594 monotonic loading protocol and others were tested under the ISO 16670 cyclic loading protocol. Some specimens were exposed to the weather for a period of 6 months before being tested, while others were stored in an air-conditioned environment before being tested. The results show that weathering reduces the ultimate and yield capacity of STC connections by 3% and 5% on average, respectively; however, this result is not statistically significant for most sheathing types. The results varied, with some configurations having an ultimate capacity up to 16% higher and others having an ultimate capacity as much as 20% lower for weathered specimens compared to unweathered specimens. However, weathering reduces the stiffness of STCs by 61% and ductility by 50%, a statistically significant result. For most sheathing types, these findings do not support reductions to the design capacity of STCs that have been exposed to weathering.
p-Numerical Semigroups of Generalized Fibonacci Triples
Authors: Komatsu Takao , Laishram Shanta , Punyani Pooja 
Published: April 2023

For a nonnegative integer p, we give explicit formulas for the p-Frobenius number and the p-genus of generalized Fibonacci numerical semigroups. Here, the p-numerical semigroup Sp is defined as the set of integers whose nonnegative integral linear combinations of given positive integers a1,a2,…,ak are expressed in more than p ways. When p=0, S0 with the 0-Frobenius number and the 0-genus is the original numerical semigroup with the Frobenius number and the genus. In this paper, we consider the p-numerical semigroup involving Jacobsthal polynomials, which include Fibonacci numbers as special cases. We can also deal with the Jacobsthal–Lucas polynomials, including Lucas numbers accordingly. An application on the p-Hilbert series is also provided. There are some interesting connections between Frobenius numbers and geometric and algebraic structures that exhibit symmetry properties.
La distribución del ingreso en México (2008-2020)
Authors: González Gutiérrez Jorge 
Published: April 2023

Este documento explora la distribución del ingreso en México durante el periodo de 2008 a 2020. Para ello, la fuente de información principal es la Encuesta Nacional de Ingreso y Gasto de los Hogares (ENIGH), la cual fue ajustada mediante el Sistema de Cuentas Nacionales. Esta información expone un periodo de descenso de la participación de las remuneraciones al trabajo, acompañado de un notable aumento de las transferencias. Asimismo, se subraya la importancia del ajuste de las encuestas, en temas como la subestimación de los ingresos reportados en los deciles más altos en todo el periodo de estudio en la ENIGH, además de la tendencia divergente de la desigualdad con respecto a los datos con ajuste. Aunado a ello, aquí se muestra que el índice de Gini ha disminuido, en especial en los periodos de 2008 a 2010 y de 2018 a 2020. En este documento se observa que esta trayectoria está asociada al comportamiento del ingreso de los deciles altos, a la evolución de la política social y a las remesas.
Fluorination Intensifying Oxygen Evolution Reaction for High-Temperature Steam Electrolysis
Authors: Li Guangdong , Gou Yunjie , Ren Rongzheng , Xu Chunming , Qiao Jinshuo , Sun Wang , Wang Zhenhua , Sun Kening 
Published: April 2023

Solid oxide electrolysis cells (SOECs) have emerged as one of the most potent techniques for hydrogen production. As the restricted step for SOEC, as well as the most predominant obstacle to the scaled application, oxygen evolution reaction (OER) should be urgently accelerated by developing potent electrocatalysts. Despite inferior electrochemical activity to cobalt-based materials, perovskite ferrites exhibit great potential in the future with regard to good intrinsic stability and durability, abundant reserves, and good compatibility with other SOEC components. In this work, fluorination is introduced to the typical perovskite ferrite to further intensify the OER process. Ab initio calculations combined with physical–chemical characterizations are performed to reveal the mechanism. The doped F
−
leads to debilitating the strength of the metal–oxygen bond and then reduces the energy for oxygen vacancy formation and ion migration, which renders improvements to sub-processes of OER on the anode. The well-verified material, PrBaFe
2
O
5+δ
F
0.1
(PBFOF), exhibited a low polarization resistance of 0.058 Ω cm
−2
. Single cells based on PBFOF showed a high current density of 2.28 A cm
−2
at 750 °C under 1.3 V. This work provides a clear insight into the mechanism of fluorination on perovskites and high-activity anode material for SOEC.
Thermal annealing effects on graphene/n-Si Schottky junction solar cell: removal of PMMA residues
Authors: Ono Yuzuki , Im Hojun 
Published: April 2023

Abstract
Thermal annealing is one of the most effective ways to improve the efficiency of a graphene/n-Si Schottky junction solar cell. Here, its underlying mechanism has been investigated by comparative studies in terms of the removal of polymethyl methacrylate (PMMA) residues, using the J–V characteristics and transient photocurrent and photovoltage measurements. The obtained results have revealed that there are trap states that originate from the PMMA residues and cause the large photocurrent leakage as the intensity of the incident light increases. It is also found that the PMMA residues accelerate deterioration and rapidly invalidate hole doping effects. Such undesirable PMMA residues were effectively removed by the thermal annealing treatments, serving to reduce the photocurrent leakage and increase the stability.
KADAR AIR DAN NILAI pH PINDANG TONGKOL TERAWETKAN SERBUK BIJI PICUNG (Pangium edule Reinw) DAN GARAM SELAMA PENYIMPANAN
Authors: Yuvita Lira Vesti Arista  , Yuli Witono  , Mukhammad Fauzi  
Published: April 2023

Boiled salted tuna is one of the processed fish products that are very popular with the public but has a relatively short shelf life. Therefore, this research was conducted to extend the shelf life of boiled salted tuna by adding picung seed powder (Pangium edule Reinw) (3% and 5%) and salt at various concentrations (15% and 20%). Boiled salted tuna was made using tuna with a weight range of ±200 g and picung seed powder was made using the freeze-dried method. Observations were made during storage on days 0, 3, 6, and 9 days covering moisture content and pH values. The results showed that the addition of picung seed powder at a concentration of 5% (P5) and the use of salt at a concentration of 20% (G 20) was considered to be able to maintain the quality of boiled salted tuna in terms of moisture content and pH value until the 9th day of storage.
ANTIKOLESTEROL PADA AYAM BOILER (Gallus domesticus) DARI BUNGA TELANG (Clitoria ternatea L) MELALUI METODE BIOTEKNOLOGI FERMENTASI KOMBUCHA
Authors: Yuliana Kolo  , Firman Rezaldi  , M.Fariz Fadillah  , Desi Trisnawati  , Barolym Tri Pamungkas  , Aris Ma’ruf  , Fernanda Desmak Pertiwi  
Published: April 2023

Animal protein consumed in high amounts is one of the triggers for an increase in cholesterol levels. Cholesterol levels that tend to increase ideally can cause strokes, heart attacks, and death both at a young and old age. Telang flower produced through the biotechnology method of kombucha fermentation contains secondary metabolites both from alkaloids, flavonoids, and saponins as anticholesterol compounds. Broiler is one of the animal foods that have cholesterol. The purpose of this study was to produce broilers with low cholesterol. This study used 20 broilers at the age of 3 months and were treated with kombucha flower telang with different sugar concentrations. The design of this study was to use RAL (Completely Randomized Design) with 5 repetitions. The treatment consisted of T0 which is drinking water without a fermented kombucha solution of telang flower. T1 is drinking water which is added with a solution of 20% telang flower kombucha fermentation. T2 is drinking water that is added with a 30% telang flower kombucha fermentation solution. T3 is drinking water which is added by 40% telang flower kombucha fermentation solution. Cholesterol levels, body weight, and drinking water are the three test parameters carried out this study. The conclusion in this study is that the concentration of white sugar by 40% in kombucha flower telang is the best substrate concentration lowering cholesterol levels in broilers.
دراسة مقارنة بين دقة وسرعة الضربة الخلفية القاطعة القطرية والضربة الخلفية القاطعة المستقيمة للاعبي التنس بأعمار (14-16) سنة
Authors: علي بهاء الدين , راضي أحمد خميس 
Published: April 2023

تكمن اهمية البحث من خلال اجراء دراسة لمقارنة بعض المتغيرات الكينماتيكية لأداء الضربة الخلفية القاطعة (المستقيمة والقطرية) ومعرفة علاقة ذلك بسرعة ودقة الاداء لدى لاعبي التنس بأعمار (14-16) سنة, ومن خلال متابعة الباحثان لأغلب تمرينات المنتخب الوطني ومن خلال المشاركة في اكثر البطولات المحلية لاحظ بان هذه المهارة يتم استخدامها مرة مستقيمة ومرة قطرية وبالتأكيد سوف يكون لدينا اختلاف من حيث المسار الحركي للأداء فضلاً عن ان استخدام هذه المهارة في عملية الدفاع امام المنافس اكثر مما هي ضربة هجومية وبالتالي فان هذه الامور قد تؤثر على مستوى اداء اللاعب من حيث الدقة والسرعة وهذا مما دفع الباحثان الى البحث عن هذه المشكلة من خلال استخدام اجهزة تحليلية حديثة تساعد المدربين في الوصول الى دراسة بعض المتغيرات الميكانيكية التي قد تؤثر على اداء هاذين الاسلوبين في اداء مهارة الضربة الخلفية القاطعة والتعرف على علاقة هذه المتغيرات وسرعة ودقة اداء الضربة الخلفية القطعة للاعبي المنتخب الناشئين بأعمار (14-16) سنة وبالتالي فان ذلك قد يساعد في الوصول الى مستوى اداء افضل متطور في هذه المهارة بعد جمع بيانات المختبرين تم اجراء التحليل الاحصائي باستخدام الحقيبة الاحصائية، واظهرت النتائج ان الضربة الخلفية القاطعة القطرية تفوقت على الضربة الخلفية القاطعة المستقيمة من حيث الدقة والسرعة والسبب يعود ان اللاعب يمتلك مساحة اكبر عند اداء الضربة الخلفية القاطعة القطرية بعكس الضربة الخلفية القاطعة المستقيمة.
The first steps towards the restoration and seismic strengthening of the historic cable-stayed suspension bridge of Deir ez-Zor in Syria
Authors: Aldrebi Z. A. 
Published: April 2023

Introduction. The historic cable-stayed suspension bridge of the city of Deir ez-Zor in Syria, which is an architectural monument, is described. The history of its creation at the beginning of the twentieth century and its destruction during the hostilities in 2013 is given. The importance of this bridge for the city and for the country as a whole is indicated, which was the reason for its choice as an object of research.Aim. The study is intended to contribute to the restoration and (or) subsequent seismic strengthening of the cable-stayed suspension bridge of Deir ez-Zor.Materials and methods. A detailed description and characteristics of the above-mentioned bridge, built according to the system of the French design engineer Albert Gisclard, according to the project of the design engineer Gaston Leinekugel Le Cocq and the construction company “Arnodin”, are given. Suspension and cable-stayed bridges are compared and distinctive features of Gisclard bridges are listed. Radial cablestayed trusses are described and the scheme of load distribution in suspension and cable-stayed bridges is illustrated. Examples of the calculation of the stay cables and their cross-sectional area are briefly given, which can be used in the restoration of the bridge and its cable stays. The method of protecting the bridge from wind and seismic influences is considered.Results. Lines of influence for radial cable trusses of the Gisclard system are illustrated, showing tension and compression zones in the cable stays. Stiffening cables are recommended for adding to the design of multi-span cable-stayed and suspension bridges, as they increase their rigidity. To protect the cable-stayed suspension bridge of the city of Deir ez-Zor from wind and seismic vibration, a method of damping or reducing wind and seismic vibration using magnetorheological liquid dampers with tuned mass is proposed.Conclusions. Conclusions are drawn about the feasibility of seismic strengthening of the Deir ez-Zor bridge together or after restoration with the help of the above-mentioned dampers, which allow protecting the bridge, while maintaining its authenticity and original exterior appearance.
ANALYSIS OF THE INFLUENCE OF THE HUMAN FACTOR IN ENSURING TECHNOSPHERE SAFETY ON THE EXAMPLE OF TRAIN SAFETY
Authors: Колдашов Александр Сергеевич 
Published: April 2023

Основной целью статьи является произведения анализа человеческого фактора в обеспечении техносферной безопасности. В работе рассмотрены аспекты влияния человеческого фактора на безопасность движения поездов и произведена разработка рекомендаций по его снижению. Научная ценность работы заключается в возможности использования материалов в качестве базы для обеспечения безопасности движения поездов.
The main purpose of the article is to analyze the human factor in ensuring technosphere security. The paper considers the main aspects of the influ- ence of the human factor on the safety of train traffic, as well as the development of recommendations for its reduction. The scientific value of the work lies in the possibility of using the presented materials as a basis for ensuring the safety of train traffic.
ESSENCE AND CHARACTERISTIC FEATURES OF INCLUSIVE EDUCATION
Authors: Булуева Шумист Исмаиловна , Ясадова Зарета Адамовна 
Published: April 2023

Понятие инклюзии зародилось в условиях масштабных изменений в понимании прав человека, его идентичности. Концепция инклюзии выработалась в результате осмысления ценности человеческого многообразия и отличий между людьми. В инклюзивном обществе среда является тем, что необходимо корректировать, а не человек. В статье дано определение понятию инклюзивное образование, рассмотрены преимущества инклюзии для детей с ограниченными возможностями здоровья, а также выделены ключевые проблемы, препятствующие широкому внедрению инклюзивных практик в образовательную среду России.
The concept of inclusion was born in the context of large-scale changes in the understanding of human rights and its identity. The concept of inclusion was developed as a result of understanding the value of human diversity and differences between people. In an inclusive society, the environment is what needs to be corrected, not the person. The article defines the concept of inclusive education, discusses the benefits of inclusion for children with disabilities, and highlights the key problems that prevent the widespread introduction of inclusive practices in the educational environment in Russia.
Small-size spectral features for machine learning in voice signal analysis and classification tasks
Authors: Likhachov D. S. , Vashkevich M. I. , Petrovsky N. A. , Azarov E. S. 
Published: April 2023

Objectives. The problem of developing a method for calculating small-sized spectral features that increases the efficiency of existing machine learning systems for analyzing and classifying voice signals is being solved.Methods. Spectral features are extracted using a generative approach, which involves calculating a discrete Fourier spectrum for a sequence of samples generated using an autoregressive model of input voice signal. The generated sequence processed by the discrete Fourier transform considers the periodicity of the transform and thereby increase the accuracy of spectral estimation of analyzed signal.Results. A generative method for calculating spectral features intended for use in machine learning systems for the analysis and classification of voice signals is proposed and described. An experimental analysis of the accuracy and stability of the spectrum representation of a test signal with a known spectral composition has been carried out using the envelopes. The envelopes were calculated using proposed generative method and using discrete Fourier transform with different analysis windows (rectangular window and Hanna window). The analysis showed that spectral envelopes obtained using the proposed method more accurately represent the spectrum of test signal according to the criterion of minimum square error. A comparison of the effectiveness of voice signal classification with proposed features and the features based on the mel-frequency kepstral coefficients is carried out. A diagnostic system for amyotrophic lateral sclerosis was used as a basic test system to evaluate the effectiveness of proposed approach in practice. Conclusion. The obtained experimental results showed a significant increase of classification accuracy when using proposed approach for calculating features compared with the features based on the mel-frequency kepstral coefficients.
2D physically unclonable functions of the arbiter type
Authors: Yarmolik V. N. , Ivaniuk A. A. 
Published: April 2023

Objectives. The problem of constructing a new class of physically unclonable functions of the arbiter type (APUF) is being solved, based on the difference in delay times for the inputs of numerous modifications of the base element, due to both an increase in the number of inputs and the topology of their connection. Such an approach allows building two-dimensional physically unclonable functions (2D-APUF), in which, unlike classical APUF, the challenge generated for each basic element selects a pair of paths not from two possible, but from a larger number of them. The relevance of such a study is associated with the active development of physical cryptography. The following goals are pursued in the work: the construction of the basic elements of the APUF and their modifications, the development of a methodology for constructing 2D-APUF.Methods. The methods of synthesis and analysis of digital devices are used, including those based on programmable logic integrated circuits, the basics of Boolean algebra and circuitry. Results. It is shown that the classical APUF uses a standard basic element that performs two functions, namely, the function of choosing a pair of paths Select and the function of switching paths Switch, which, due to their joint use, allow achieving high performance. First of all, this concerns the stability of the APUF functioning, which is characterized by a small number of challenge, for which the response randomly takes one of two possible values 0 or 1. Modifications of the base element in terms of the implementations of its Select and Switch functions are proposed. New structures of the base element are presented in which the modifications of their implementations are made, including in terms of increasing the number of pairs of paths of the base element from which one of them is selected by the challenge, and the configurations of their switching. The use of various basic elements makes it possible to improve the main characteristics of APUF, as well as to break the regularity of their structure, which was the main reason for hacking APUF through machine learning. Conclusion. The proposed approach to the construction of physically unclonable 2D-APUF functions, based on the difference in signal delays through the base element, has shown its efficiency and promise. The effect of improving the characteristics of such PUFs has been experimentally confirmed with noticeable improvement in the stability of their functioning. It seems promising to further develop the ideas of constructing two-dimensional physically unclonable functions of the arbiter type, as well as experimental study of their characteristics, as well as resistance to various types of attacks, including using machine learning.
Zwicky Transient Facility and Globular Clusters: The Period–Luminosity and Period–Wesenheit Relations for SX Phoenicis Variables in the gri Band
Authors: Ngeow Chow-Choong , Bhardwaj Anupam , Graham Matthew J. , Healy Brian F. , Laher Russ R. , Riddle Reed , Wold Avery 
Published: April 2023

Abstract
SX Phoenicis (SXP) variables are short-period pulsating stars that exhibit a period–luminosity (PL) relation. We derived the gri-band PL and extinction-free period–Wesenheit (PW) relations, as well as the period-color and reddening-free period-Q-index relations for 47 SXP stars located in 21 globular clusters, using the optical light curves taken from Zwicky Transient Facility. These empirical relations were derived for the first time in the gri filters except for the g-band PL relation. We used our gi-band PL and PW relations to derive a distance modulus to Crater II dwarf spheroidal which hosts one SXP variable. Assuming that the fundamental and first-overtone pulsation mode for the SXP variable in Crater II, we found distance moduli of 20.03 ± 0.23 mag and 20.37 ± 0.24 mag, respectively, using the PW relation, where the latter is in excellent agreement with independent RR Lyrae based distance to Crater II dwarf galaxy.
Mode Mixing and Rotational Splittings. II. Reconciling Different Approaches to Mode Coupling
Authors: Ong 王 J. M. Joel 加冕 , Gehan Charlotte 
Published: April 2023

Abstract
In the mixed-mode asteroseismology of subgiants and red giants, the coupling between the p- and g-mode cavities must be understood well in order to derive localized estimates of interior rotation from measurements of mode multiplet rotational splittings. There exist now two different descriptions of this coupling: one based on an asymptotic quantization condition, and the other arising from the coupling matrices associated with “acoustic molecular orbitals.” We examine the analytic properties of both, and derive closed-form expressions for various quantities—such as the period-stretching function τ—which previously had to be solved for numerically. Using these, we reconcile both formulations for the first time, deriving relations by which quantities in each formulation may be translated to and interpreted within the other. This yields an information criterion for whether a given configuration of mixed modes may meaningfully constrain the parameters of the asymptotic construction, which is likely not satisfied by the majority of first-ascent red giant stars in our observational sample. Since this construction has been already used to make rotational measurements of such red giants, we examine—through a hare-and-hounds exercise—whether, and how, such limitations affect these existing measurements. While averaged estimates of core rotation seem fairly robust, template-matching using the asymptotic construction has difficulty reliably assigning rotational splittings to individual multiplets, or estimating the mixing fractions ζ of the most p-dominated mixed modes, where such estimates are most needed. We finally discuss implications for extending the two-zone model of radial differential rotation, e.g., via rotational inversions, with these methods.