bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of hybrid cable remote power supply circuits with a coaxial element for collecting and processing information based on video surveillance systems
Authors: Семенов А.Б. , Буробина К.Д. , Орлова С.А.
Published: September 2021

Обоснована перспективность применения компьютерных систем управления с централизованной структурой. На примере системы видеонаблюдения показаны возможности коаксиальных, витопарных и волоконно-оптических кабелей при построении физического уровня подобных систем. Определено место коаксиального кабеля при реализации таких структур. Рассмотрены возможности комбинированных конструкций из коаксиальной трубки и дополнительных жил питания при подключении удаленной терминального сетевого компьютерного оборудования с коаксиальным интерфейсом. Предложен метод расчета площади поперечного сечения выделенных жил питания для такого кабеля, определены их конкретные значения в зависимости от требуемого расстояния и мощности потребления терминального оборудования. Продемонстрирована целесообразность применения повышенного напряжения питания для систем уличного исполнения при протяженности тракта свыше 300 м.

The prospects of using computer control systems with a centralized structure are substantiated. The possibilities of coaxial, twisted-pair and fiber-optic cables for building the physical level of modern video surveillance systems are shown. The place of the coaxial cable in the implementation of such systems is determined. The possibilities of combined structures made of a coaxial tube and additional power wires when connecting a remote TV camera are considered. A method is proposed for calculating the cross-sectional area of the separated power wires for such a cable, and their specific values are determined depending on the required distance and power consumption of the TV camera. The expediency of using increased supply voltage for street systems with a cable channel length of more than 300 m is demonstrated.
Turbine flow meter with increased metrological reliability
Authors: Гладков А.В.
Published: September 2021

Рассматривается турбинный расходомер применяющийся в качестве элемента бортовой системы управления объектов космической, авиационной, судовой техники для контроля расхода рабочих жидкостей, в котором преобразование частоты в напряжение осуществляется путем сглаживания импульсов с постоянной вольт-секундной площадью, формируемых из сигнала магнитоиндукционного преобразователя. Величина площади задается с помощью генератора с кварцевой стабилизацией частоты и прецизионного стабилитрона. Показывается, что функция преобразования расходомера остается неизменной в течение всего срока эксплуатации. Описывается встроенная схема самодиагностики, обеспечивающая автоматизированную проверку метрологической исправности расходомера в процессе эксплуатации.

The article considers a turbine flow meter used as an element of the on-board control system of objects of space, aviation, ship equipment to control the flow of working fluids, in which the conversion of frequency into voltage is carried out by smoothing pulses with a constant volt-second area formed from the signal of a magnetic induction converter. The size of the area is set using a crystal oscillator with frequency stabilization and a precision zener diode. It is shown that the conversion function of the flow meter remains unchanged throughout the life of the meter. A built-in self-diagnosis circuit is described, which provides an automated check of the metrological serviceability of the flow meter during operation.
Optimization of self-similar traffic of the infocommunication system
Authors: Аббасова Т.С. , Ганюшин А.А. , Ганюшина Ю.Н.
Published: September 2021

Проанализированы характеристики трафика беспроводной инфокоммуникационной системы, доказано его самоподобие. Описана система имитационного моделирования исследуемого трафика. Разработаны способы совершенствования метода пропорционального распределения пропускной способности системы на основе ON/OFF-модели трафика. Усовершенствована и расширена ON/OFF-модель трафика. Предложен метод перераспределения пропускной способности на основе расширенной ON/OFF-модели трафика на входе в критический участок беспроводной инфокоммуникационной системы.

The characteristics of the traffic of the wireless infocommunication system are analyzed, and its self-similarity is proved. The system of simulation modeling of the investigated traffic is described. Methods for improving the method of proportional distribution of the system throughput based on the ON / OFF traffic model have been developed. The ON / OFF traffic model has been improved and expanded. A method of bandwidth redistribution based on an extended ON / OFF traffic model at the entrance to a critical section of a wireless infocommunication system is proposed.
Functional-target management models of regional security (Part 1. Chain synthesis of goals and actions)
Authors: Маслобоев А.В. , Путилов В.А.
Published: September 2021

Работа направлена на развитие формального аппарата анализа и синтеза многоуровневых распределенных систем управления региональной безопасностью с целью повышения адекватности этих систем в условиях усложнения управленческих задач в этой области. В работе предложены математические модели управления региональной безопасностью , основанные на функционально-целевой технологии и теории иерархических многоуровневых систем. Модели обеспечивают формальную постановку задач и практическую реализацию процедур автоматизации структурно-алгоритмического синтеза адекватных систем информационной поддержки управленческой деятельности. Работа состоит из двух частей. В первой части рассматриваются формальные процедуры синтеза цепочек целей и действий в управлении региональной безопасностью. Во второй части обсуждаются вопросы синтеза моделей покрывающих и адекватных систем, обеспечивающих решение задач управления путем удовлетворения условий изоморфизма всех уровней их декомпозиции и функциональной организации системы.

The study is aimed to development of the mathematical apparatus for analysis and synthesis of the multi-level distributed management systems of regional security for the purpose of system adequacy enhancement under management problems complication in this field. Mathematical models for regional security management based on the functional-target technology and the theory of hierarchical multi-level systems are proposed. Models provide formalized problem statement and practical implementation of automation procedures of the structural-algorithmic synthesis of appropriate systems for information support of management activity. Our research work consists of two parts. In the first part formal procedures of the chain synthesis of goals and actions in regional security management are considered. In the second part the model synthesis issues of covering and adequate systems, providing management problem-solving by isomorphism conditions settlement of the all problem decomposition levels and the system functional organization.
New composite material, with neutralized red mud
Authors: Баринкова А.А. , Пиирайнен В.Ю. , Баринков В.М.
Published: September 2021

В статье предложено решение по утилизации красного шлама в больших количествах с перспективой создания цикла его полной переработки. Для определения области работы были проведены аналитические исследования по уже известным технологиям переработки, описаны их основные преимущества и недостатки. В процессе анализа была определена наиболее перспективная область - непосредственное использование отхода, а именно производство строительных материалов. Были проведены экспериментальные исследования в лабораторных условиях, которые показали конкурентоспособность полученного композита относительно традиционных бетонов на основе портландцемента и выявлены возможные области применения нового материала.

This paper proposes a solution for utilization of red mud in large amounts with the prospect of creating a complete recycling cycle. In order to determine the area of work, theoretical studies of already known recycling technologies were conducted, their main advantages and disadvantages were described. In the process of analysis, the most promising area was determined - the direct use of waste, namely the production of building materials. Experimental studies have been conducted in laboratory conditions, which showed the competitiveness of the resulting composite relative to the traditional Portland cement and identified possible applications of the new material.
Synthesis of a basic satellite radio navigation system
Authors: Аббасова Т.С. , Привалов В.И. , Бондаренко В.Г.
Published: September 2021

На основе анализа особенностей навигационно-временных определений и методологических основ проектирования в системах высокоточного позиционирования проведена генерация вариантов спутниковой радионавигационной системы, исходным шагом в которой является синтез её базового варианта. Рассмотрены наиболее эффективные процедуры разрешения неоднозначности фазовых измерений, основанных на избыточности фазовых измерений, а также процедуры, заключающиеся в целочисленной максимизации функции неоднозначности, выбранной из характера периодичности сигналов навигационного космического аппарата. Сформулирован критерий точности позиционирования.

Based on the analysis of the features of navigation-time definitions and methodological foundations of design in high-precision positioning systems, the generation of options for a satellite radio navigation system was carried out, the initial step in which is the synthesis of its basic version. The most effective procedures for resolving the ambiguity of phase measurements based on the redundancy of phase measurements, as well as procedures involving the integer maximization of the ambiguity function, selected from the nature of the periodicity of the signals of the navigation spacecraft, are considered. A criterion for positioning accuracy is formulated.
Generator of formats of group telemetry signal for measurement systems with a software-controlled method of data collection
Authors: Мороз А.П. , Полехина Г.Е. , Полехин А.И.
Published: September 2021

Предложен и обоснован алгоритм работы генератора форматов (ГФ) кадра для систем программируемой телеметрии. Алгоритм относится к новому классу алгоритмов, использующих принцип текущей фазы, отличается уменьшенной сложностью вычислений и минимальным объемом программ измерений (ПИ), что упрощает задачу подготовки ПИ и уменьшает объем памяти для их хранения.

An algorithm for the operation of a frame format (GF) generator for programmable telemetry systems is proposed and substantiated. The algorithm belongs to a new class of algorithms using the principle of the current phase, it is distinguished by a reduced computational complexity and a minimum volume of measurement programs (PI), which simplifies the task of preparing PI and reduces the amount of memory for their storage.
System analysis of modeling the accuracy of joint measurement of two information parameters of a signal
Authors: Воловач В.И.
Published: September 2021

Проведен системный анализ влияния мультипликативных помех, действующих одновременного с аддитивными помехами, на точность измерения двух информационных параметров полезного сигнала. Получены зависимости влияния мультипликативных помех на точность измерения частоты и времени прихода радиоимпульсов .

The system analysis of the influence of multiplicative interference acting simultaneously with additive interference on the accuracy of measurement of two information parameters of the useful signal is carried out. The dependences of the influence of multiplicative interference on the accuracy of measuring the frequency and time of arrival of radio pulses are obtained.
The effect of profitability, size and Shariah supervisory board of an Indonesian Islamic bank on the Islamic social reporting disclosure
Authors: Fachrurrozie  , Nurkhin Ahmad , Wahyudin Agus , Mamnukhin Kholid Al , Agustina Ika
Published: September 2021

This paper analyzes the effect of profitability and size of Indonesian Islamic banks on the level of Islamic Social Reporting (ISR) disclosure. This study also investigates the role played by the Sharia Supervisory Board (SSB) in the effect of profitability and size of an Islamic bank on ISR disclosure. The presence of SSB is very important in the operations of Islamic banks. SSB should be involved in important company decisions, including the ISR disclosure. The study covers all 14 Indonesian Islamic commercial banks as a population; the analysis will be conducted based on annual reports of the banks’ divisions for the period 2014–2018. A documentation technique was used to collect the data. Moderated Regression Analysis (MRA) was used for data analysis. The results show that the adjusted R-squared coefficient of the equation is 0.341. R-squared contributions of ROA, ROE, size, and SSB are –0.093, 0.010, 0.983, and –0.081. Other results show that profitability (ROA) and size (total assets) significantly affect the level of ISR disclosure among Indonesian Islamic banks. However, the results were indifferent regarding the role of SSB. There is no significant effect of SSB on ISR disclosure. SSB was important for moderating the relationship between profitability (ROA and ROE) and bank size and ISR disclosure level. SSB’s involvement in the decision making of Islamic banks will have a positive effect on the activities of Islamic banks. Islamic banks will tend to have a high level of ISR. Further researchers can develop SSB measurements for more accurate results.
Early Childhood Care in Sambas Muslim Family: Cultural and Religious Influences
Authors: Suratman Bayu , Nurjannah Nurjannah
Published: September 2021

This article reports an in-depth study on early childhood care in Sambas Malay Muslim family.  This research incorporated a qualitative method with a descriptive approach through observations and interviews with parents and Sambas local figures.  The findings indicate the influence of local culture and religious values on Sambas Muslim parenting style. More specifically, this study showed that parenting practices of Muslim Sambas Malay parents are carried out through the tradition of pantang larang and kemponan. Pantang larang and kemponan become parts of collective memory so that they become social educative traditions in early childhood care in the Muslim Sambas Malay family.
The physical-chemical characteristics of surface waters in the management of quality in clearwater rivers in the Brazilian Amazon
Authors: do Nascimento Monte Christiane , Correa Saldanha Edinelson , Costa Igor , Shinaigger Rocha do Nascimento Thiago , Santos Pereira Mateus , Farias Batista Louisiane , Costa Pinheiro Danilo
Published: September 2021

The study of water quality in the Amazon region is important for understanding the functioning of ecological mechanisms. The standard that governs water quality in Brazil, including the Amazon, is Resolution CONAMA 357/05, which uses criteria inspired by standards from other countries. However, this resolution does not consider characteristics of Amazonian aquatic ecosystems, and this can lead to incorrect interpretation of the data. Furthermore, there are few studies on the physical-chemical characteristics of clearwater rivers in the Amazon and the influence of the forest-water interface. Therefore, water samples were collected from four clearwater tributary watersheds of the Amazonas and Tapajós Rivers during the dry season in the city of Santarém, Pará. Most of the points were collected in pristine areas in order to capture the natural physicochemical characteristics of clearwater rivers, as well as to show the importance of ecoregional aspects in water quality management. All samples were below pH 6.0, which represents non-compliance with the CONAMA resolution. Statistical tests yielded negative correlations between pH and conductivity (r = −0.87, p < 0.05), Therefore, the rivers of lower ionic load are influenced by the type of surrounding vegetation, which are characteristics that have been widely reported for blackwater rivers.
An Updated Review for the Diabetic Wound Healing Systems
Authors: Okur Mehmet E. , Bülbül Ece Ö. , Mutlu Gökçe , Eleftherıadou Kalliopi , Karantas Ioannis D. , Okur Neslihan Ü. , Siafaka Panoraia I.
Published: September 2021

Background &; Objective:

Diabetes is a global health problem that has resulted in millions
of deaths; one of the most common diabetes complications is that wounds of diabetic patients
tend to heal more slowly or may not heal at all, resulting in undesirable outcomes. Diabetic
wounds, if become chronic and infected, could provoke lower extremities amputation, sepsis, and
even death. Hence, early detection, careful examination, debridement, cleaning, and prevention or
controlling the infection of diabetic wounds are important factors for the successful outcome of the
case. Over the years, various promising wound dressings incorporating antimicrobial molecules,
growth factors, and wound healing agents have been developed, targeting diabetic wounds.
Nonetheless, the choice of dressing is mainly based on the experience of each clinician.

This review summarizes the main points of diabetes complications, diabetic wounds,
and infections. Further, an overview of the current drug delivery systems for topical wound delivery
of various active ingredients has been performed. This update could be helpful for scientists
and especially clinicians who desire to plan and work with new strategies for the healing of diabetic
wounds.
Methyl-linked Pyrazoles: Synthetic and Medicinal Perspective
Authors: Sharma Tulika , Singh Joginder , Singh Bijender , Kataria Ramesh , Kumar Vinod
Published: September 2021

:

Pyrazoles, an important and well known class of the azole family, have been found to show a large number of applications in various fields specially of medicinal chemistry. Among pyrazole derivatives, particularly, methyl substituted pyrazoles have been reported as the potent medicinal scaffolds that exhibit a wide spectrum of biological activities. The present review is an attempt to highlight the detailed synthetic approaches for methyl substituted pyrazoles along with in depth analysis of their respective medical significances till March2021. It is hoped that literature sum-up in the form of present review article would certainly be a great tool to assist the medicinal chemists for generating new leads possessing pyrazole nucleus with high efficacy and less microbial resistance.
Neural Correlates of Anti-appetite Medications: An fMRI Meta-analysis
Authors: Yeung Andy Wai Kan
Published: September 2021

Food craving is a health issue for a considerable proportion of the general population.
Medications have been introduced to alleviate the craving or reduce the appetite via a neuropharmacological
approach. However, the underlying cerebral processing of the medications was largely unknown.
This study aimed to meta-analyze existing neuroimaging findings. PubMed, Web of Science,
and Scopus were searched to identify relevant publications. Original studies that reported
brain imaging findings using functional magnetic resonance imaging (fMRI) were initially included.
The reported coordinates of brain activation available from the studies were extracted and metaanalyzed
with the activation likelihood estimation (ALE) approach via the software GingerALE.
The overall analysis pooling data from 24 studies showed that the right claustrum and insula were
the targeted sites of altered cerebral processing of food cues by the medications. Subgroup analysis
pooling data from 11 studies showed that these sites had reduced activity levels under medications
compared to placebo. The location of this significant cluster partially overlapped with that attributable
to affective value processing of food cues in a prior meta-analysis. No brain regions were found to
have increased activity levels by medications. These neural correlates may help explain the physiological
effect of food consumption by anti-appetite and anti-obesity medications.
Antibacterial, Antioxidant, and Angiotensin-I Converting Enzyme Inhibition
Effects of Margotia gummifera Extracts Rich in Phenolic Compounds
Authors: Bouchekrit Moufida , Laouer Hocine , Selim Çakmak Yavuz , Hajji Mohamed , Boutellaa Saber , Nasri Moncef , Akkal Salah
Published: September 2021

Background:

Aromatic and medicinal plants have been used to substitute synthetic
drugs with natural bioactive products.

Objective:

The current investigation was conducted to evaluate phenol and flavonoid contents,
antibacterial, antioxidant, and anti-hypertensive potentials of three extracts of Margotia gummifera
aerial parts.

Methods:

The antibacterial effect was assessed using the wells agar diffusion method against 11
strains. The antioxidant effect was evaluated using different methods, 2, 2-diphenyl-1-picrylhydrazyl,
total antioxidant capacity, ferric reducing ability power, cupric reducing antioxidant capacity,
and β-carotene/linoleic acid bleaching assay. The anti-hypertensive activity was performed using
hippuryl-histidyl-leucine substrates.

Results:

The highest yield, i.e., 19.801%, was obtained by the hydro-methanolic extract. However,
ethyl acetate extract seemed to be rich in phenolic and flavonoid compounds compared to other extracts,
i.e., 822.14±69.10 mg GAE g-1 ext. and 117.28±1.80 mg RE g-1 ext., respectively. The high
free radical scavenging activity was mentioned in ethyl acetate extract with IC50 of 48.820±1.25
μg/ml. The same extract showed better antioxidant activity in all tested procedures. In antibacterial
activity, the hydro-methanolic extract exhibited moderate effect against all tested bacteria except
Salmonella enterica and Enterococcus faecalis which gave 18±2.0 and 16±1.0 mm of inhibition,
whereas it seemed to be inactive towards two Gram-negative bacteria. Concerning anti-hypertensive
activity, all extracts can inhibit the Angiotensin-I Converting Enzyme, but the potential effect
was given by hydro-methanolic and aqueous extracts, 97.75% and 96.65%, respectively.

Conclusion:

It can be stated that the bioactive compounds of Margotia gummifera extracts had different
biological activities, which confirm their therapeutic uses in traditional medicine.
The Role of miR-129-5p in Cancer: A Novel Therapeutic Target
Authors: Zeng Tiebing , Ling Hui , Xu Shan , Li Wei , Wu Jing , Lu Yuru , Xie Ming , Li Yanlan , Zou Juan
Published: September 2021

miRNA-129-5p belongs to the microRNA-129 (miRNA-129) family. miRNA-129-5p is
expressed in many tissues and organs of the human body, and it regulates a wide range of biological
functions. The abnormal expression of miRNA-129-5p is related to the occurrence and development
of a variety of malignant tumors. miRNA-129-5p plays an important role in the tumorigenesis
process and functions by promoting or inhibiting tumors. However, the role of miRNA-129-5p
in cancer remains controversial. This article reviews the different biological functions of miRNA-
129-5p in cancer and provides ideas for research in this field to guide the development of targeted
therapies and drugs for malignant tumors.
Исследование фазового состава интерфейсного слоя, полученного при горячем прессовании Cr и Si
Authors: Соломкин Ф.Ю. , Самунин А.Ю. , Зайцева Н.В. , Шаренкова Н.В. , Исаченко Г.Н. , Новиков С.В.
Published: September 2021

The possibility of synthesizing layers of the medium-temperature thermoelectric CrSi2 by hot pressing of the initial components (Cr and Si) has been investigated. The phase composition of samples obtained by hot pressing of Cr and Si before and after annealing in the region of their contact boundary has been investigated by X-ray analysis. It is shown that, under certain conditions, low-temperature synthesis of a CrSi2 layer with a thickness of 50 to 300 μm is possible at the interface between Cr and Si. The synthesis occurs at a temperature significantly lower than that given in the phase diagram, which opens up new technological possibilities for obtaining the CrSi2 compound.
Дифференциальная туннельная проводимость в многокомпонентных твердых растворах Bi-=SUB=-2-x-=/SUB=-Sb-=SUB=-x-=/SUB=-Te-=SUB=-3-y-z-=/SUB=-Se-=SUB=-y-=/SUB=-S-=SUB=-z-=/SUB=-
Authors: Лукьянова Л.Н. , Макаренко И.В. , Усов О.А.
Published: September 2021

Differential tunnel conductance of the interlayer van der Waals surface (0001) was investigated in n-Bi2-xSbxTe3-y-zSeySz multicomponent solid solutions at x = 0.2, y = z = 0.09, optimized for near room temperatures with a high power factor, and at x = 0.4, y = 0, z = 0.06 with optimal thermoelectric properties for low temperatures and a high Seebek coefficient. It is shown that the intensity of the fluctuations of the Dirac point energy, a shift the top of the valence band and presence of surface levels in the energy gap formed by impurity defects is determined with composition and thermoelectric properties of solid solutions. The contribution of the surface states of Dirac fermions increases in n-Bi1.8Sb0.2Te2.82Se0.09S0.09 solid solution with a high power factor due to significant decrease of the surface concentration near the charge neutrality point and the growth of fermion mobility.
Влияние структурно-морфологических характеристик на сенсорные свойства пленок Cd-=SUB=-x-=/SUB=-Pb-=SUB=-1-x-=/SUB=-S
Authors: Маскаева Л.Н. , Ваганова И.В. , Марков В.Ф. , Бездетнова А.Е. , Селянина А.Д. , Воронин В.И. , Селянин И.О.
Published: September 2021

Polycrystalline films of CdxPb1−x S
(0.021 ≤ x ≤ 0.090) supersaturated substitutional solid solutions
with a cubic structure B1 (Fm3¯m space group) have been obtained
with varying cadmium acetate salt Cd(CH3COO)2 in the reaction
mixture within 0.01−0.1 mol/l on the sitall substrates. Their
thickness changed from ∼ 0.4 to ∼ 1.0 microns. A correlation
has been established between the structural-morphological and
functional properties of CdxPb1−x S thin-film layers. The extreme
character of the voltage sensitivity dependence on the cadmium
salt concentration in the reaction bath is associated with the
nonmonotonic introduction of cadmium into the PbS crystal
lattice. It is shown that the maximum photocurrent is possessed
by CdxPb1−x S thin-film layers formed from crystallites with
pronounced faceting. We have found the surface sensitivity of
the CdxPb1−xS films to the presence of ∼ 0.02 mg/m3 NO2 in
the air, which is significantly lower than the maximum allowable
concentration.
Тепловое расширение кристаллов Pb-=SUB=-1-x-=/SUB=-Cd-=SUB=-x-=/SUB=-Te
Authors: Шаров М.К.
Published: September 2021

The values of the lattice period and the linear coefficient of thermal expansion (alfa) of Pb1-xCdxTe solid solutions are determined depending on the cadmium content and temperature using high-temperature X-ray diffractometry.
Аn increase in the concentration of cadmium in Pb1-xCdxTe in the range x = 0.02–0.08 leads to a significant increase in the linear coefficient of thermal expansion. A change in temperature range T = 293–673 K leads to decrease in the linear coefficient of thermal expansion. Besides, an increase in temperature does not affect the value alfa of the undoped PbTe in the indicated temperature range.
Рабочие характеристики полупроводниковых лазеров на квантовых ямах в зависимости от ширины волноводной области
Authors: Соколова З.Н. , Пихтин Н.А. , Слипченко С.О. , Асрян Л.В.
Published: September 2021

Operating characteristics of semiconductor quantum well (QW) lasers are theoretically studied in terms of the thickness of the waveguide region [optical confinement layer (OCL)]. We calculate the maximum modal gain, optical confinement factor (in QW, OCL, and cladding layers), threshold current density, electron and hole densities (in QW and OCL), internal optical loss (in QW, OCL, and cladding layers), internal differential quantum efficiency, stimulated and spontaneous recombination currents, and output optical power of the laser as functions of the OCL thickness. It is shown that up to the pump current density 50 kA/cm2 the output power of the considered lasers depends only slightly on the OCL thickness in the range of thicknesses 1.5–2.8 m. This result is important for designing high brightness lasers as broadened waveguides are used in such lasers to attain low beam divergence. At high pump current densities, the output power is shown to have a maximum as a function of the OCL thickness.
Структура, термическая стабильность и транспортные свойства жаропрочного высокоэнтропийного сплава ZrTiHfNb
Authors: Рыльцев Р.Е. , Эстемирова С.Х. , Ягодин Д.А. , Стерхов Е.В. , Упоров С.А.
Published: September 2021

The problem of phase stability is one of the key problems in the study of high-entropy alloys. Here we address this issue for a heat-resistant high-entropy TiZrHfNb alloy with a bcc structure. The evolution of the structure of this alloy is studied during isothermal annealing at T = 400 °C. It was found that the as-cast alloy consists of two coexisting bcc phases with similar unit cell parameters. This state is homogenized during annealing. Still, the highly stressed nanostructured state is retained and the texture is enhanced. The thermal conductivity of the alloy in the temperature range of 20–400 °C changes in the range of 8–16 W m K, which is comparable in order of magnitude with the thermal conductivity of steels.
Спектроскопия иттриевого скандата, легированного ионами тулия
Authors: Добрецова Е.А. , Алимов О.К. , Русанов С.Я. , Кашин В.В. , Воронов В.В. , Гурьев Д.А. , Кутовой С.А. , Власов В.И. , Цветков В.Б.
Published: September 2021

The thulium-doped yttrium scandate crystal fiber has been obtained by the laser-heated pedestal growth method. The crystal belongs to the bixbyite type, has a cubic structure and crystallizes in the Ia3 space group. The lattice parameters (a=10.224(1) Angstrem) have been determined using the powder X-ray diﬀraction. Spectral-kinetic measurements have allowed to detect two symmetrically independent optical centers of Tm3+ ions in the crystal fiber.
Фазовый переход первого рода в нанотубулярном диоксиде титана
Authors: Сушникова А.А. , Валеева А.А. , Дорошева И.Б. , Ремпель А.А.
Published: September 2021

Titanium dioxide (TiO2) nanotubes array with the length of 16 μm and the outer diameter of 100 nm were synthesized by anodic oxidation of titanium foil in an electrolyte solution containing a fluorine-containing solution of ethylene glycol. The selected synthesis conditions make it possible to separate the nanotubular array from the titanium foil and study it as a homogeneous functional material. The performed scanning electron microscopy study and Brunauer–Emmett–Teller analysis allowed to get data on the morphology of the samples. X-ray diffraction, thermogravimetric, and differential scanning calorimetry analysis made it possible to determine the temperature of the phase transition of the amorphous state into crystalline anatase (sp.gr. I4/amd). Observed phase transition of first order takes place at temperature about 350 °С.
Магнитоструктурные особенности фазовых переходов в системе Mn-=SUB=-1-x-=/SUB=-Co-=SUB=-x-=/SUB=-NiGe Часть 2. Анализ
Authors: Митюк В.И. , Римский Г.С. , Коледов В.В. , Маширов А.В. , Вальков В.И. , Головчан А.В. , Ковалев О.Е.
Published: September 2021

Within the framework of the model of interacting parameters of the magnetic and structural orders, taking into account the internal periodic magnetic field orthogonal to the exchange field, we analyzed the features of magnetostructural transitions in the Mn_{1-x}Co_{x}NiGe system. A qualitative description of changes in the nature of magnetic phase transitions from magnetostructural transitions of the 1st order paramagnetism-antiferromagnetism (x = 0.05-0.1) to isostructural transitions of the 2nd order paramagnetism-ferromagnetism (x = 0.15-0.8) with a change in the concentration of Co is presented. An explanation is given for the onset of irreversible magnetic-field-induced transitions at temperatures on the order of 5 K in strong magnetic fields, accompanied by a change in the saturation magnetization for samples x = 0.15-0.8. The low-temperature inverse magnetocaloric effect at liquid helium temperatures is predicted for these samples.
Прямой и обратный магнитоэлектрический эффект в орторомбических монокристаллах Dy-=SUB=-1-x-=/SUB=-Ho-=SUB=-x-=/SUB=-MnO-=SUB=-3-=/SUB=-
Authors: Фрейдман А.Л. , Хороший И.Н. , Колков М.И. , Терентьев К.Ю.
Published: September 2021

In this work, the magnetoelectric response in a series of Dy1-xHoxMnO3 crystals with substitution x from 0 to 0.4 was investigated. The measurement results showed that, as x increases, a decrease in both the polarization Pa and the magnitude of the susceptibility of the inverse magnetoelectric effect αba is observed. In addition, the field Hb increases, at which the Pc→Pa transition is observed, and the temperature range of the existence of the magnetoelectric response decreases. Thus, an increase in the substitution x suppresses the magnetoelectric effect in this series of compounds. The measurement results also indirectly indicate the prolongation of the Pa state and, consequently, of the magnetic state with a cycloid lying in the ab-plane by an external electric field Ea.
The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research project No.20-42-243008.
Влияние водорода на модуль Юнга и внутреннее трение сплава V-4Ti-4Cr
Authors: Кардашев Б.К. , Сапожников К.В.
Published: September 2021

Young's modulus and internal friction of the V-4Ti-4Cr alloy with different hydrogen content were studied in the temperature range of 100 − 300 К at oscillation frequencies of about 100 kHz. It is shown that hydrogenation of the alloy gives rise to a minimum in the temperature dependence of Young's modulus due to the precipitation/dissolution of vanadium monohydride particles, and a relaxation peak in the temperature spectrum of internal friction at temperatures of about 140 К, which can be associated with the Snoek-type hydrogen relaxation caused by the Ti-H interaction.
Распределение катионов Tb-=SUP=-3+-=/SUP=- и Eu-=SUP=-3+-=/SUP=- в решетке C-Gd-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=- по данным спектров фотолюминесценции и дальнего ИК
Authors: Баковец В.В. , Долговесова И.П. , Пивоварова Т.Д. , Шелудякова Л.А.
Published: September 2021

In this work, we investigated the features of the photoluminescence of C-Gd2(1-x)TbxEuxO3 luminophores at x = 1.0 and 2.5 mol%, which are associated with the distribution of Tb3+ and Eu3+ activator ions over the centrosymmetric C3i and noncentrosymmetric C2 positions of cations in the bixbyite lattice, as well as in the positions at the boundaries crystallites CS. We studied the phase transformations of the samples, changes in the morphology of crystallites, photoluminescence spectra, and spectra of the far infrared region 50–600 cm–1 with changes in the annealing modes of the initial products of the sol – gel synthesis Gd2(1 – x)TbxEux(OH)y(CO3)z · n(H2O) at temperatures of 900 and 1200oC in air and hydrogen. Correlations have been established between changes in the characteristics of the samples and the parameters of their annealing. Based on the analysis of these correlations, the redistribution of activators over the indicated cation positions was determined, and a model was proposed for identifying infrared absorption bands in accordance with the localization of activators along the cationic sublattices C3i and C2.
Особенности формирования пентагональных микрокристаллов никеля в сплошных электроосажденных покрытиях при избирательном ингибировании роста их отдельных граней
Authors: Матвеева Н.С. , Грызунова Н.Н. , Ясников И.С.
Published: September 2021

The paper presents experimental facts indicating the possibility of controlling the habitus of microcrystals, which are structural units of electrodeposited nickel coatings. The introduction of additives (inhibitors) into the electrolyte of a certain chemical composition affects on the evolution of individual crystallographic facets of growing microcrystals and initiates the growth of microcrystal facets with a certain crystallographic orientation. This leads to the production of a nickel coating mainly consisting of microcrystals containing disclination-type defects and exhibiting pentagonal symmetry.
Поляризованная люминесценция наноточек MoS-=SUB=-2-=/SUB=-
Authors: Старухин А.Н. , Нельсон Д.К. , Курдюков Д.А. , Стовпяга Е.Ю.
Published: September 2021

The effect of temperature on the polarization of the luminescence of the colloidal system of MoS2 nanodots in n-methylpyrrolidone is studied under the condition of linearly polarized excitation. Nanodots are obtained by chemical exfoliation and dispersion of MoS2 microcrystals in a liquid medium under the action of ultrasound. The photoluminescence spectrum of the ensemble of MoS2 nanodots is significantly shifted towards shorter wavelengths with respect to the luminescence spectrum of bulk crystals, which is explained by the quantum-size effect in the electronic spectrum of MoS2 nanocrystals. It is shown that the temperature dependence of the anisotropy of the radiation of nanodots is described by the Levshin-Perrin equation, which takes into account the rotational diffusion of luminescent particles in the liquid matrix. The size of photoexcited nanodots in the framework of the Levshin-Perrin model turns out to be ≥ 1.5 nm and increases with increasing the emission wavelength. It is shown that the sizes of MoS2 nanodots obtained by analyzing the temperature dependence of the emission anisotropy are in satisfactory agreement with the data obtained by analyzing the quantum-size effect in the electronic spectrum of nanodots.
Формирование интерметаллида Cu-=SUB=-6-=/SUB=-Sn-=SUB=-5-=/SUB=- в тонких пленках Cu/Sn
Authors: Быкова Л.Е. , Жарков С.М. , Мягков В.Г. , Балашов Ю.Ю. , Патрин Г.С.
Published: September 2021

The study of the formation of the Cu6Sn5 intermetallic compound in Sn(55nm)/Cu(30nm) thin bilayer films was carried out directly in the column of a transmission electron microscope (electron diffraction mode) by heating the film sample from room temperature to 300 °C and recording the electron diffraction patterns. The thin films formed as a result of a solid state reaction were monophase and consisted of the η-Cu6Sn5 hexagonal phase. The temperature range for the formation of the η-Cu6Sn5 phase was determined. The estimate of the effective interdiffusion coefficient of the reaction suggests that the main mechanism for the formation of the Cu6Sn5 intermetallic is diffusion along the grain boundaries and dislocations.
mHealth for Anemia Reduction: Protocol for an Entertainment Education–Based Dual Intervention
Authors: Pant Ichhya , Rimal Rajiv , Yilma Hagere , Bingenheimer Jeffrey , Sedlander Erica , Behera Sibabrata
Published: September 2021

Background

More than half of the women of reproductive age (aged 15-49 years) are anemic in India. The uptake of and adherence to iron folic acid (IFA) supplements remain low despite sustained efforts to increase their use. With India’s burgeoning digital environment, mobile phones offer a potential medium for increasing their uptake, especially when combined with interactive voice messages that deliver entertaining stories infused with norms-based educational messages.

Objective

This study aims to investigate whether a norms-based entertainment education mobile health intervention can increase self-efficacy for IFA adherence among women of reproductive age in Odisha, India.

Methods

Mobile reduction in anemia through normative innovations (mRANI) is a randomized 2-arm study that includes assessments before and after the intervention. All study participants will be recruited from the intervention arm of the parent reduction in anemia through normative innovations trial only. Although the usual practice is to randomize participants either to a treatment arm or a usual care control arm, we will assign the mRANI control group to another entertainment education–based treatment group that is designed to improve bystander intervention to reduce violence against women. Data collection for the mRANI study is embedded in the parent trial and will include baseline and end line assessments. The primary outcomes are self-efficacy for IFA adherence and violence against women–related bystander intervention. The inclusion criteria for the mRANI study are participation in the parent trial and phone ownership. Women (approximately n=400) who meet the mRANI inclusion criteria will be randomly assigned to the IFA arm or the bystander arm. Ordinary least squares regression with robust SEs will be conducted to assess between-group comparisons at the end line. A mediation analysis will be conducted to examine whether social norms and interactivity mediate the relationship between intervention exposure and primary outcomes in both arms. Real-time monitoring data will offer insights into intervention receptivity and audience engagement.

Results

Data collection for the mRANI study is integrated within the parent trial. Household surveys were conducted between February and March of 2021. Responses on the mRANI study’s primary and secondary outcomes were collected from 381 participants. The data analysis is expected to be completed by October 2021.

Conclusions

This study will provide evidence on whether a mobile health norms–based entertainment education intervention can increase self-efficacy for IFA adherence and violence against women–related bystander intervention.

International Registered Report Identifier (IRRID)

PRR1-10.2196/26252
Health Citizenship and Healthcare Access in Indonesia, 1945-2020
Authors: Nugroho Arief Priyo , Handayani Sri , Effendi Diyan Ermawan
Published: September 2021

Health citizenship is understood over how the government provides access to healthcare. This paper aims to describe the development of health citizenship from the post-colonial until the democratization era in Indonesia by analyzing health accessibility. The social-history approach was applied to analyze contemporary study in Indonesian healthcare access from 1945 to 2020. This article analyses the dynamic over political regime changes context and its approach to deal with health accessibility based on acceptability, availability, and affordability issues. This study found that each political regime provides a different social-political context in prioritizing and administrating the accessibility of healthcare. Besides each regime appears issues of accessibility, all of which provoke inequity in healthcare. This paper argues that health citizenship development in Indonesia shows the underlying cause of inequity. Consequently, the minimal presence of public participation raises inequity. Inequity leads to healthcare access that provides pointless improvement. Narratives in health citizenship fulfillment call for public participation space in administering access to healthcare.
Socialization Experiences of First Year non-Western International Master’s Students at a Mid-Western University
Authors: Akanwa Emmanuel E.
Published: September 2021

As the international student population continues to increase in the United States’ higher education institutions, the need to explore the significance of socialization as a necessary predictor to academic success has become inevitable. While most studies on students’ socialization had investigated socialization experiences of students in general, there has been a paucity of research that specifically explored the socialization experiences of first-year international master’s degree students from non-Western countries. This study’s findings revealed respondents’ varying perspectives on adjustment, group support, social experiences, making friends, among other constructs, and implicated the need for more support services as well as the need for international students to take ownership of their socialization, determination, and persistence.
What Impact Does A Content and Language Integrated Learning (CLIL) Approach Have on Vocabulary Acquisition?
Authors: Stanley Iain
Published: September 2021

This paper aims to investigate the efficacy of a CLIL-focused approach on vocabulary acquisition in a 2nd year college photography course taught entirely in English. In the first year the course was taught, many students reported difficulties with the specific vocabulary related to photography, a lot of which falls outside the top 2,000 words in the General Services List (West, 1958). Therefore, in the second year, a dedicated CLIL approach was adopted and implemented. Students (n=24) were given a vocabulary quiz on the first day of class and the same quiz on the last day of class. Results clearly indicated that a CLIL-focused approach to teaching vocabulary is extremely effective.
Prediction of Carcass Composition and Meat and Fat Quality Using Sensing Technologies: A Review
Authors: Leighton Patricia L. A. , Segura Jose , Lam Stephanie , Marcoux Marcel , Wei Xinyi , Lopez-Campos Oscar , Soladoye Philip , Dugan Mike E. R. , Juarez Manuel , Prieto Nuria
Published: September 2021

Consumer demand for high-quality healthy food is increasing; therefore, meat processors require the means toassess their products rapidly, accurately, and inexpensively. Traditional methods for quality assessments are time-consum-ing, expensive, and invasive and have potential to negatively impact the environment. Consequently, emphasis has been puton finding nondestructive, fast, and accurate technologies for product composition and quality evaluation. Research in thisarea is advancing rapidly through recent developments in the areas of portability, accuracy, and machine learning.Therefore, the present review critically evaluates and summarizes developments of popular noninvasive technologies(i.e., from imaging to spectroscopic sensing technologies) for estimating beef, pork, and lamb composition and quality,which will hopefully assist in the implementation of these technologies for rapid evaluation/real-time grading of livestockproducts in the near future.
РАДАРЫ ДЛЯ АВТОТРАНСПОРТА И ДОРОЖНОЙ ИНФРАСТРУКТУРЫ С ПРИМЕНЕНИЕМ ПРОЦЕССОРОВ АО «ПКК МИЛАНДР»
Authors: Бирюков М.
Published: September 2021

Рассмотрено применение процессоров АО «ПКК Миландр» в радарах, предназначенных для использования в автомобилях и дорожной инфраструктуре. Приведены примеры таких радаров и их характеристики.
МОНТАЖ КРИСТАЛЛОВ ПО ТЕХНОЛОГИИ СИНТЕРИНГА ДЛЯ ПРОИЗВОДСТВА ЭЛЕМЕНТОВ И МОДУЛЕЙ СИЛОВОЙ ЭЛЕКТРОНИКИ
Authors: Иванов В. , Уголини Ф.
Published: September 2021

Рассмотрен монтаж кристаллов по технологии синтеринга для производства элементов и модулей силовой электроники. Приведена информация о применяемых материалах, процессе монтажа и необходимом оборудовании.
Artesanía textil, reciprocidad, liderazgo y reproducción social en Zinacantán, Chiapas
Authors: Tovilla Borraz Claudia Elizabeth , Zamora Lomelí Carla Beatriz , Estrada Lugo Erin , Gracia María Amalia
Published: September 2021

Objetivo: conocer qué importancia tienen la reciprocidad y el liderazgo en la cooperativa Mujeres Sembrando la Vida, de Zinacantán, Chiapas, a partir del análisis de las estrategias de adaptación a la arena textil de estas mujeres y su incidencia en la reproducción social. Metodología: se utilizan método y técnicas cualitativas de investigación. Resultados: los grupos domésticos usan diversas facetas de reciprocidad simétrica y asimétrica y liderazgo comunitario en tres ámbitos de trabajo: grupo localizado de producción, cooperativa o proyecto asociativo y arena textil para su reproducción social. Limitaciones: las condiciones derivadas de la emergencia sanitaria debida al SARS-CoV-2 causaron la suspensión de las salidas al campo y el traslado de éste al ambiente virtual. Valor: se establece que el parentesco y el sistema de cargos son la base de las relaciones sociales, con lo cual se demuestra que las mujeres desarrollan estrategias de adaptación en el campo textil. Conclusiones: a través de la apropiación y de la resignificación de la figura de cooperativa, los grupos localizados de producción se insertan en una economía de mercado mediante una estrategia con anclaje cultural, lo que demuestra capacidad adaptativa y autogestión para garantizar su reproducción social en un entorno diverso en términos culturales, como es la arena textil.