bluuebunny/crossref_metadata_2025 huggingface dataset:
Перспективы использования рентгеновских трубок с автоэмиссионным катодом и "прострельным" анодом в диапазоне мягкого рентгеновского излучения
Authors: Барышева М.М. , Зуев С.Ю. , Лопатин А.Я. , Лучин В.И. , Пестов А.Е. , Салащенко Н.Н. , Цыбин Н.Н. , Чхало Н.И.
Published: July 2020

The use of field emission cathodes in the design of x-ray tubes requires the placement of a cathode assembly with a small distance from the anode, complicating the output of radiation. Most acute this problem occurs when generating a relatively soft spectrum with wavelengths of 1-10 nm: in this case, the accelerating voltage does not exceed several kilovolts, and the inter-electrode distance composes several hundred micrometers. In this work, we experimentally demonstrated the applicability of beryllium-based submicron films as “shot-through” anodes for generating the Be K line ( = 11.4 nm) and the associated bremsstrahlung spectrum. In particular, the characteristic radiation of a tube with a field emission blade cathode and a Be film anode was recorded within the scheme of a grazing incidence grating spectrometer. The characteristics of beryllium films necessary for the development of X-ray tubes of this type with a higher output power are determined.
Морфология и состав дефектированных массивов ниобиевых оксидных неоднородностей, сформированных анодированием двуслойной системы Al/Nb
Authors: Плиговка А.Н. , Юнин П.А. , Гога А.В. , Королев С.А. , Горох Г.Г. , Скороходов Е.В.
Published: July 2020

The work is devoted to X-ray diffraction research of defected niobium oxide nonuniform (NON) arrays and niobium oxide nanocolumns formed by electrochemical anodizing. The results obtained allow to make an assumption about the probable presence of significant amount of NbO, NbO0.7, Nb2O5 and small amount of NbO2, and Al in the composition of defected NON and the presence of all these substances in the nanocolumns of niobium oxide except NbO0.7, but in smaller quantities. A comparative analysis of the NON structure and the nanocolumns makes it possible to isolate, probably, significant amount of Nb0.94O0.06, Nb6O in the defective nanocolumns, which was not found in NON.
Магнитоэлектрический эффект в гибридных системах сегнетоэлектрик/ферромагнитная пленка с анизотропией типа "легкая плоскость" и "легкая ось"
Authors: Гусев Н.С. , Сапожников М.В. , Удалов О.Г. , Пашенькин И.Ю. , Юнин П.А.
Published: July 2020

We studied the striction magnetoelectric effect in hybrid systems consisting of a magnetic film deposited on the ferroelectric surface. Films with planar (galfenol, nickel) and perpendicular (multilayer Co / Pt structures) magnetic anisotropy were used. PMN-PT crystal was used, as a ferroelectric. The hysteresis loops of magnetic films were investigated as a function of the voltage, applied to a ferroelectric crystal. In films with “easy plane” type anisotropy, a rotation of the axis directions in the plane of the sample was detected upon application of electric voltage. In structures with an "easy axis" type anisotropy, a change in the shape of the hysteresis loop is observed, which, according to the simulation, which can be associated with a change in the Dzyaloshinsky – Morii surface interaction at the Co and Pt interface
Анализ эмиссии электронов с одиночного кремниевого катода в квазивакуумную (воздушную) среду методом атомно-силовой микроскопии
Authors: Евсиков И.Д. , Митько С.В. , Глаголев П.Ю. , Дюжев Н.А. , Демин Г.Д.
Published: July 2020

Using atomic force microscopy (AFM), we experimentally examined the features of field-electron emission from a single point-type silicon cathode into a quasi-vacuum (air) medium. In the non-contact AFM operating mode, the current – voltage characteristics (CVCs) of a single cathode with a nanometer radius of curvature of the tip were measured at distances of 10 nm and 20 nm between the cathode tip and the top of the measuring probe. The electric field distribution was simulated both on the surface of the tip of a single cathode and on the surface of the tips of individual cathodes within the array, based on which a theoretical estimate of the field enhancement factor as a function of the cathode-probe distance was made. The field-enhancement factor calculated from the experimental CVCs in the Fowler-Nordheim coordinates is several orders of magnitude higher than its value obtained from theoretical calculations. Such a mismatch between the experimental data and the simulation results indicates the need to take into account additional quantum-size effects, which play an important role in the formation of the field-electron emission current in the nanoscale gap. In particular, deformation of the silicon emitter tip can occur at this scale due to the penetration of a strong electric field into its surface region, which, in turn, causes the distortion of the potential barrier at the interface with the quasi-vacuum medium.
Исследование влияния колхицина на нативные фибробласты методами атомно-силовой и конфокальной микроскопии
Authors: Халисов М.М. , Пеннияйнен В.А. , Подзорова С.А. , Тимощук К.И. , Анкудинов А.В. , Крылов Б.В.
Published: July 2020

Using atomic force and confocal laser scanning microscopy, we studied the effect of colchicine, 1 µg/ml, which is known to cause the depolymerization of tubulin microtubules, on the primary rat fibroblast culture. When analyzing atomic force microscopy data, the sliding type of probe–cell contact was revealed by observing a clear increase of deformation signal at the sample inclined areas. For an unambiguous interpretation of the observed variations in the mechanical characteristics of fibroblasts, it is necessary to prove the sliding of the probe over the cell surface. It was found that some fibroblasts are soft and are characterized by a quite uniform distribution of the apparent Young's modulus over their surface, while others, much harder cells have rigid fibrous structures on the Young's modulus map. Colchicine has been shown to cause significant cell hardening in both groups. Confocal microscopy data show that the observed effect is associated with an increase in the intracellular content of F-actin in fibroblasts.
Микроволновая вольт-импедансная спектроскопия полупроводников
Authors: Резник А.Н. , Востоков Н.В. , Вдовичева Н.К. , Шашкин В.И.
Published: July 2020

We have tested experimentally the proposed method of microwave volt-impedance spectroscopy of semiconductors. The method allows to determine the local values of the semiconductor electrophysical parameters. The studies were performed on a homogeneous single-crystal GaAs wafer with a concentric antenna system formed on its surface. The resolution is determined by the diameter of the antenna central disk, which was amounted a = 12, 27, 57 μm. A constant bias voltage of 0 ≤ U ≤ 5 V was applied between the contact pads of the antennas. The complex impedance spectrum Z (f, U) of each antenna was measured using a Cascade Microtech probe station in the frequency range f = 0.1 - 10 GHz. The electrophysical characteristics of the semiconductor were determined from Z(f, U) spectra by the inverse problem solving. We have established the n-type for our semiconductor and determined the electrical potential difference on the metal-semiconductor interface. We have found as well the electron concentration, mobility and conductivity. Measurements of the same parameters by Hall four-probe method (giving the surface averaging) showed good mutual agreement of the results for the homogeneous sample under study.
Синтез и свойства больших квантовых точек антимонида индия
Authors: Крыльский Д.В. , Жуков Н.Д.
Published: July 2020

Large (up to 20 nm) quantum dots (QD) of indium antimonide were synthesized using colloidal chemistry at elevated temperatures (250-300 °C). In terms of optical and electrophysical characteristics, they exhibit properties similar to those of conventional QD (4-5 nm), with the difference that the spectral maximum of luminescence is shifted inappropriately to the size difference. This, together with measurements of the QD shape by transmission electron microscopy, may indicate a deterioration in the perfection of the crystal structure of large QD, possibly due to insufficient synthesis temperature
Модификация пористого углеродного материала полимерным комплексом кобальта с основанием Шиффа саленового типа для электродов электрохимических суперконденсаторов
Authors: Положенцева Ю.А. , Новожилова М.В. , Быков В.А. , Карушев М.П.
Published: July 2020

Effect of the modification of a porous carbon material used in supercapacitors by a polymeric complex of cobalt with a Salen-type Schiff base ligand on the material capacity have been studied. Conjunction of multielectron redox processes in the polymer with the proposed effective modification technology makes it possible to increase the electrode capacity by 2.4 times in comparison with unmodified carbon electrodes. Specific capacity of the polymer poly-[Co(CH3OSaltmen)] at a polymer deposition density of 1.3 mg•cm-2 was 170 mA•h•g-1.
Селективное устройство для ввода сигнала в сильноточный релятивистский черенковский усилитель
Authors: Данилов Ю.Ю. , Абубакиров Э.Б. , Конюшков А.П.
Published: July 2020

Selective unidirectional excitation of a cylindrical waveguide through the side wall has been studied in application to the signal entry of a millimeter-wave high-current relativistic cherenkov amplifier. The found ratio of the input structure parameters ensures maximum transfer from the fundamental mode of the rectangular waveguide to the unidirectional lowest circular mode of the cylindrical waveguide. The transfer efficiency in absence of ohmic loss reaches 97.5%. The input structure adapted to the 35.5 GHz-amplifier construction has been realized with an efficiency of 75%.
Factors Associated Quality of Life Patients with Coronary Stent in Dr Sardjito Hospital Yogyakarta
Authors: Rofiyati Winda Rofiyati , Pangastuti Heny Suseani
Published: July 2020

Rofiyati, Winda¹. Akhmadi 2, Heny Suseani Pangastuti 3.             

¹Medical Surgical Nursing Master Student of Gadjah Mada University, ²Department of Medical Surgical Nursing ³Faculty of Public Health and Nursing, Gadjah Mada University , ³ Department of Mental and Community Nursing Faculty of Public Health and Nursing of Gadjah Mada University.

*Correspondence author: Dr. Heny Suseani Pangastuti, S.Kp. M.Kes

Department of Medical Surgical Nursing, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University Jl. Farmako No. 1 SEKIP Yogyakarta 55281 Indonesia Email: heny_pangastuti@ugm.ac.id

Abstract

Background:             

Coronary heart disease is the highest cause of death in the world and constitutes 31% of causes of death worldwide. Installation of stent causes mortality rate due to CHD to decline and has proven to improve quality of life and reduce the frequency of angina. On the other hand, patients with coronary heart disease with heart stents have various health risks related to complications and other health factors that will affect their quality of life.

Purpose:

This study aims to determine the factors associated with the quality of life of patients with heart stents in the Cardiovascular Polyclinic of Dr. Sardjito General Hospital Yogyakarta.

Research Method:

This study is a cross-sectional study involving 94 samples of coronary heart patients with heart stents having a checkup the Cardiovascular Polyclinic at Dr Sardjito General Hospital, Yogyakarta. Quality of life was measured using Seattle Angina Questionaire and depression was measured using the BDI II scale (beck depression inventory). Data were analyzed using multivariate analysis with linear regression.

Results:

The age factor is a significant factor related to the quality of life of patients with heart stents with p = 0.001 (p <0.05) with R: -0,366.

 

Conclusion:

Age is a factor associated with the quality of life of patients with heart stents.

 

Keywords: Quality of life, heart stents, coronary heart disease.
Exploring the Privacy-Preserving Properties of Word Embeddings: Algorithmic Validation Study
Authors: Abdalla Mohamed , Abdalla Moustafa , Hirst Graeme , Rudzicz Frank
Published: July 2020

Background

Word embeddings are dense numeric vectors used to represent language in neural networks. Until recently, there had been no publicly released embeddings trained on clinical data. Our work is the first to study the privacy implications of releasing these models.

Objective

This paper aims to demonstrate that traditional word embeddings created on clinical corpora that have been deidentified by removing personal health information (PHI) can nonetheless be exploited to reveal sensitive patient information.

Methods

We used embeddings created from 400,000 doctor-written consultation notes and experimented with 3 common word embedding methods to explore the privacy-preserving properties of each.

Results

We found that if publicly released embeddings are trained from a corpus anonymized by PHI removal, it is possible to reconstruct up to 68.5% (n=411/600) of the full names that remain in the deidentified corpus and associated sensitive information to specific patients in the corpus from which the embeddings were created. We also found that the distance between the word vector representation of a patient’s name and a diagnostic billing code is informative and differs significantly from the distance between the name and a code not billed for that patient.

Conclusions

Special care must be taken when sharing word embeddings created from clinical texts, as current approaches may compromise patient privacy. If PHI removal is used for anonymization before traditional word embeddings are trained, it is possible to attribute sensitive information to patients who have not been fully deidentified by the (necessarily imperfect) removal algorithms. A promising alternative (ie, anonymization by PHI replacement) may avoid these flaws. Our results are timely and critical, as an increasing number of researchers are pushing for publicly available health data.
Surveillance of Cardiovascular Risk Factors in the Fifth Military Sector Health Center, Ngaoundéré, Cameroon: Observational Study
Authors: Bell Ngan Williams , Essama Eno Belinga Lawrence , Essam Nlo'o Alain Serges Patrick , Roche Frederic , Goethals Luc , Mandengue Samuel Honoré , Bongue Bienvenu
Published: July 2020

Background

Noncommunicable diseases (NCDs) are the leading causes of death worldwide. They were responsible for 40 million of the 57 million deaths recorded worldwide in 2016. In Cameroon, epidemiological studies have been devoted to NCDs and their risk factors. However, none provides specific information on their extent or the distribution of their risk factors within the Cameroonian defense forces.

Objective

The objective of our study was to assess the cardiovascular risk of a Cameroonian military population compared with that of its neighboring civilian population.

Methods

We conducted a cross-sectional study that involved subjects aged 18 to 58 years, recruited from October 2017 to November 2018 at the Fifth Military Sector Health Center in Ngaoundéré, Cameroon. Data collection and assessment were done according to the World Health Organization (WHO)’s STEPS manual for surveillance of risk factors for chronic NCDs and the Alcohol Use Disorders Identification Test. Five cardiovascular risk factors were assessed: smoking, harmful alcohol consumption, obesity/overweight, hypertension, and diabetes. The risk was considered high in subjects with 3 or more of the factors. Univariate analysis and multivariate logistic regression were carried out according to their indications.

Results

Our study sample of 566 participants included 295 soldiers and 271 civilians of the same age group (median age 32 years versus 33 years, respectively; P=.57). The military sample consisted of 31 officers and 264 noncommissioned officers (NCOs). Soldiers were more exposed to behavioral risk factors than civilians, with a prevalence of smoking of 13.9% versus 4.4% (P<.001) and excessive alcohol consumption of 61.7% versus 14.8% (P<.001). They also presented with a higher cardiovascular risk than civilians (odds ratio 2.7, 95% CI 1.50-4.81; P<.001), and among the military participants, the cardiovascular risk was higher for officers than for NCOs (51.6% versus 14.0%, respectively; P<.001).

Conclusions

Cameroonian soldiers are particularly exposed to cardiovascular behavioral risk factors and consequently are at higher risk of NCDs.

Trial Registration

ClinicalTrials.gov NCT04315441; https://clinicaltrials.gov/ct2/show/NCT04315441
Internet-Delivered Cognitive Behavioral Therapy for Problematic Alcohol Use in a Workplace Setting: Protocol for Quantitative and Qualitative Evaluation of Feasibility and Outcomes
Authors: Forsström David , Sundström Christopher , Berman Anne H , Sundqvist Kristina
Published: July 2020

Background

Internet-based cognitive behavioral therapy (ICBT) for mental health issues has been successfully implemented in routine health care settings, and research indicates that ICBT can also be applied to decrease problematic alcohol use in workplace settings. However, studies investigating the feasibility of implementing ICBT in a workplace setting have been lacking.

Objective

The current study aims to investigate the feasibility of delivering ICBT for problematic alcohol use within an employee assistance program (EAP).

Methods

The study has a quantitative naturalistic design, quantitively comparing ICBT and face-to-face treatment, and allowing for qualitative interviews with employees and employers. Recruitment of participants follows a five-session in-person psychological assessment at an EAP regarding an employee’s presumed problematic alcohol consumption. All assessed employees referred to ICBT or face-to-face treatment will be offered participation in the study. Interviews will be held with employees and their employer representatives following ICBT to elucidate both stakeholders’ experience and perception of ICBT and its context. Outcome comparisons between ICBT and face-to-face treatment will be assessed quantitatively using a Reliable Change Index and analysis of variance. Thematic analysis and Grounded Theory will be used to analyze the interview material.

Results

The study is set to begin in April 2020 and to end in September 2021. The aim is to recruit up to 150 participants to the quantitative part of the study and 45 participants (15 employees and 30 employer representatives) to the qualitative part of the study.

Conclusions

The current study will provide knowledge that is lacking and urgently needed on how to implement ICBT for problematic alcohol use in a workplace setting.

International Registered Report Identifier (IRRID)

PRR1-10.2196/18693
Internet-Delivered Cognitive Behavioral Therapy for Problematic Alcohol Use in a Workplace Setting: Protocol for Quantitative and Qualitative Evaluation of Feasibility and Outcomes (Preprint)
Authors: Forsström David , Sundström Christopher , Berman Anne H , Sundqvist Kristina
Published: July 2020

BACKGROUND

Internet-based cognitive behavioral therapy (ICBT) for mental health issues has been successfully implemented in routine health care settings, and research indicates that ICBT can also be applied to decrease problematic alcohol use in workplace settings. However, studies investigating the feasibility of implementing ICBT in a workplace setting have been lacking.

OBJECTIVE

The current study aims to investigate the feasibility of delivering ICBT for problematic alcohol use within an employee assistance program (EAP).

METHODS

The study has a quantitative naturalistic design, quantitively comparing ICBT and face-to-face treatment, and allowing for qualitative interviews with employees and employers. Recruitment of participants follows a five-session in-person psychological assessment at an EAP regarding an employee’s presumed problematic alcohol consumption. All assessed employees referred to ICBT or face-to-face treatment will be offered participation in the study. Interviews will be held with employees and their employer representatives following ICBT to elucidate both stakeholders’ experience and perception of ICBT and its context. Outcome comparisons between ICBT and face-to-face treatment will be assessed quantitatively using a Reliable Change Index and analysis of variance. Thematic analysis and Grounded Theory will be used to analyze the interview material.

RESULTS

The study is set to begin in April 2020 and to end in September 2021. The aim is to recruit up to 150 participants to the quantitative part of the study and 45 participants (15 employees and 30 employer representatives) to the qualitative part of the study.

CONCLUSIONS

The current study will provide knowledge that is lacking and urgently needed on how to implement ICBT for problematic alcohol use in a workplace setting.

INTERNATIONAL REGISTERED REPORT

PRR1-10.2196/18693
ОПРЕДЕЛЕНИЕ ОПТИМАЛЬНЫХ ПАРАМЕТРОВ ЛИТОГРАФИЧЕСКОГО СТЕКА И ОСВЕТИТЕЛЯ ПРИ РАЗРАБОТКЕ OPC-РЕШЕНИЙ ДЛЯ СЛОЕВ МЕТАЛЛИЗАЦИИ В ПЕРСПЕКТИВНОМ ТЕХНОЛОГИЧЕСКОМ ПРОЦЕССЕ 28 НМ
Authors: Балан Н.Н. , Иванов В.В. , Кузовков А.В.
Published: July 2020

Работа посвящена вопросам подбора оптимальных параметров осветителя и литографического стека при реализации техник повышения разрешающей способности проекционной фотолитографии (RET). Описано современное состояние методик оптимизации параметров осветителя, применяемых в фотолитографии. Проведены предварительные расчеты оптимальной формы осветителя и параметров литографического стека для слоя первого металла в перспективном технологическом процессе уровня 28 нм.

The work focuses on the illuminator form and lithography layers stack optimization in the process of RET implementation. The current state of techniques of illuminator optimization used for projection photolithography has been described. Results of optimal illuminator form and lithography stack parameters estimates have been given for the first metal layer in a promising 28 nm node technology.
МОДЕЛИРОВАНИЕ МЕЛКОЗАЛЕГАЮЩИХ ЛЕГИРОВАННЫХ СЛОЕВ P-ТИПА
Authors: Ганыкина Е.А. , Горнев Е.С. , Ключников А.С.
Published: July 2020

В настоящей работе исследовано формирование мелкозалегающих легированных слоев p-типа. Работа охватывает теоретическое и практическое рассмотрение реализации мелкозалегающего p-n-перехода. Проведен анализ дефектов, возникающих в процессе ионной имплантации (с особым вниманием к протяженным EOR-дефектам), а также рассмотрено их влияние на профиль распределения бора.

The paper studies the formation of shallow p-type doped layers, as well as theoretical and practical implementation of shallow p-n junction. The analysis of defects arising in the process of ion implantation (with special attention to extended EOR-defects) has been carried out, and their influence on the profile of boron distribution has been considered.
РАСЧЕТ СОПРОТИВЛЕНИЯ ЭЛЕМЕНТОВ МЕТАЛЛИЗАЦИИ ГЛУБОКО СУБМИКРОННЫХ СБИС
Authors: Горохов С.А.
Published: July 2020

Проводится расчет элементов системы металлизации, который может быть применим для оценки сопротивления контактных окон, переходных окон, линий металлизации различных геометрий и топологических норм, а также для предварительного диагностирования дефектных пустот, образующихся в контактных и переходных окнах.

The paper presents interconnect elements resistance calculation that can be used to assess the resistance of contact plugs, vias, interconnect lines of various geometries and technology nodes, as well as for the preliminary diagnosis of defective voids formed in the contact plugs and vias.
РАЗРАБОТКА IP-БЛОКА ЦИФРОВОГО DLL ДЛЯ ПОЛУЗАКАЗНЫХ МИКРОСХЕМ СЕРИИ 5540ТН014
Authors: Горчакова М.А.
Published: July 2020

Данная работа посвящена разработке IP-блока, выполняющего функцию умножителя частоты, для цифрового радиационно стойкого БМК серии 5540ТН014, изготовленного по технологии КНИ 180 нм. В ходе работы было получено RTL-описание данного IP-блока и спроектирована его топология. Также в работе отображены результаты поведенческого моделирования в условиях, приближенных к реальным.

This work is devoted to the design of an IP-block that performs the function of a frequency multiplier for a digital radiation-resistant ULA of the 5540TN014 series manufactured using SOI 180 nm technology. During the work, RTL description of this IP block has been obtained and its topology has been designed. The paper also displays the results of behavioral modeling in conditions close to real ones.
ТИРИСТОРНЫЙ ЭФФЕКТ В СВЧ ИС, ИЗГОТОВЛЕННЫХ ПО SIGE БИКМОП-ТЕХНОЛОГИЯМ
Authors: Елесина В.В. , Метелкин И.О.
Published: July 2020

Проведен анализ случаев возникновения тиристорного эффекта в СВЧ ИС, изготовленных по технологии SiGe БиКМОП, при воздействии ионизирующего излучения. Рассмотрены области СВЧ ИС, чувствительные к возникновению ТЭ, определены основные параметры тиристорных структур. Проведена апробация подхода к восстановлению параметров схемно-топологической радиационно-ориентированной модели тиристорной структуры для САПР.

The paper analyzes ionizing radiation induced latchup in microwave SiGe BiCMOS integrated circuits (ICs). Critical parts of ICs sensitive to latchup have been identified and basic parameters of corresponding parasitic thyristor structures have been determined. An approach has been approved to the thyristor structure compact model parameters extraction procedure intended for use in CAD systems.
ОСОБЕННОСТИ ПРОЕКТИРОВАНИЯ СВЧ-КЛЮЧЕЙ В РАЗНЫХ КОНСТРУКТИВНО-ТЕХНОЛОГИЧЕСКИХ БАЗИСАХ
Authors: Калёнов А.Д. , Мухин И.И. , Репин В.В.
Published: July 2020

Представляется сравнение СВЧ-ключей, проектируемых в разных конструктивно-технологических базисах: КНИ, КМОП, биполярные и GaAs. Определенные трудности существуют при разработке ключей на сверхвысоких частотах, в разных технологиях необходимо учитывать различные эффекты. Наличие паразитных эффектов сильно осложняет разработку. В статье приводится оценка влияния паразитных эффектов на основные параметры СВЧ-ключей в разных конструктивно-технологических базисах.

The paper offers a comparison of microwave keys designed in different structural and technological bases: SOI, CMOS, bipolar and GaAs. There are some difficulties in developing the keys to the ultra-high frequencies, in different technologies it is necessary to consider various effects. The presence of parasitic effects greatly complicates the development. The article provides an assessment of the influence of parasitic effects on the basic parameters of microwave keys in different structural and technological bases.
ВЛИЯНИЕ ТИПОВ СТРУКТУР ДЛЯ СОВМЕЩЕНИЯ И ИЗМЕРЕНИЯ КОНТРОЛИРУЕМЫХ РАЗМЕРОВ НА ДОСТОВЕРНОСТЬ АТТЕСТАЦИИ ФОТОШАБЛОНОВ
Authors: Колобов А.В. , Панкратов А.Л. , Иванов В.В.
Published: July 2020

Как известно, наиболее распространенным способом производства ИС является фотолитография. В связи с этим одним из наиболее важных критериев является точность изготовления комплекта фотошаблонов. Существует набор методик, с помощью которых происходит процесс аттестации ФШ. В данный набор, помимо прочего, входят процессы контроля критических размеров и исследования дефектов фотошаблона. Результаты данных исследований по большей части зависят от исходного выбора точек для измерений в рабочей области фотошаблона. Данная работа посвящена исследованию влияния различных типов измерительных структур на результат аттестации ФШ, а также разработке алгоритма поиска точек для измерения на кадре изображения ФШ.
As is known, photolithography is the most common way to produce IC. In this connection, one of the most important criteria is manufacturing accuracy of the mask set. There is a set of techniques used for realizing a mask validation process. This set includes mask inspection processes such as critical dimension (CD) control and defect analysis. The results of these processes largely depend on the initial choice of points for measurements in the working area of the photomask. This article is dedicated to the study of the influence of various measurement structures on the photomask verification process, as well as to the development of measurement points search algorhythm.
АВТОМАТИЗАЦИЯ ПРОИЗВОЛЬНЫХ ИЕРАРХИЧЕСКИХ МАРШРУТОВ, ПРИМЕНЯЕМЫХ ПРИ ПРОЕКТИРОВАНИИ ФОТОШАБЛОНОВ
Authors: Медведев К.А. , Иванов В.В.
Published: July 2020

В работе предложена модель представления произвольных иерархических маршрутов, применяемых при проектировании фотошаблонов. Разработан универсальный программный комплекс, позволяющий автоматизировать выполнение таких маршрутов. Проведено исследование его эффективности на примере автоматизации процесса входного контроля топологической информации при проектировании фотошаблонов.
The paper proposes a model for representing arbitrary hierarchical flows used in the photomasks designing process. A universal software package has been developed to provide the automation of such flows. The effectiveness of the software has been tested by automating the procedure for checking the topology used in the design of photomasks.
ДИФРАКЦИОННЫЕ РЕШЕТКИ С ЗАДАННОЙ ЭФФЕКТИВНОСТЬЮ ВЫВОДА ИК-ИЗЛУЧЕНИЯ ИЗ КРЕМНИЕВОГО ВОЛНОВОДА
Authors: Миннуллин Р.Т. , Макаров М.Э. , Итальянцев А.Г. , Барабаненков М.Ю.
Published: July 2020

Исследуется зависимость эффективности вывода излучения ближнего ИК-диапазона из кремниевого волновода на многослойной подложке при помощи дифракционной решетки, выполненной в виде его части, от различных параметров (глубины и ширины профиля, числа направляющих и т. д.). Показано, что путем изменения параметров решетки можно добиться изменения эффективности вывода в диапазоне значений от 0 до 20 %.
The paper studies output efficiency of near IR radiation for subwavelength diffraction grating with rectangular profile embedded into a silicon waveguide on multilayer substrate with respect to the variation of different grating parameters (profile depth and width, number of grooves etc.). It has been shown that the output efficiency can be altered in a wide range (up to 20 %) by a certain selection of grating parameters.
МИНИАТЮРИЗАЦИЯ ПРИЕМО-ПЕРЕДАЮЩИХ МОДУЛЕЙ СВЧ-ДИАПАЗОНА, РЕАЛИЗОВАННЫХ МЕТОДАМИ 3D КРЕМНИЕВОЙ ТЕХНОЛОГИИ
Authors: Пяточкин М.Д. , Котляров Е.Ю. , Мелекесцев В.С.
Published: July 2020

В данной работе приведены современные методики сборки приемо-передающих модулей АФАР при помощи элементов 3D-технологии. Рассмотрены актуальные подходы для снижения массогабаритных характеристик модуля. Проведено численное моделирование и сравнение вариантов, используемых в настоящее время, при разработке сверхкомпактных ППМ сантиметрового и миллиметрового диапазона на основе монолитных интегральных схем.
This paper presents modern techniques for assembling transceiver modules AESA using elements of 3D technology. Actual approaches to reducing the overall dimensions of the module have been considered. Numerical modelling and comparison of the options currently used in the development of ultra-compact SMTs of the centimeter and millimeter ranges based on monolithic integrated circuits have been represented.
РАЗРАБОТКА И ИССЛЕДОВАНИЕ ФОРМИРОВАТЕЛЕЙ ПИТАНИЯ ДЛЯ ВЫХОДНЫХ УСИЛИТЕЛЕЙ МОЩНОСТИ
Authors: Ромодин М.С. , Тишин А.С.
Published: July 2020

Рассмотрены формирователи питания СВЧ-усилителей мощности, их основные характеристики и особенности. Приведены типовые решения подачи импульсного питания высокого напряжения и мощности в системах с GaAs УМ. Приведены результаты экспериментального исследования формирователей питания и влияния качества их выходного сигнала на выходной сигнал СВЧ УМ.
The paper presents power drivers of microwave power amplifiers, as well as their main characteristics and features. Typical solutions have been presented that provide pulsed power supply of high voltage and power in GaAs power amplifiers. The results of experimental research on power drivers and their quality influence on the output signal of the microwave power amplifier have been provided.
РАЗРАБОТКА ФАЗИРОВАННОЙ АНТЕННОЙ РЕШЕТКИ ДЛЯ СИСТЕМЫ СВЯЗИ ПЯТОГО ПОКОЛЕНИЯ ДИАПАЗОНА НИЖЕ 6 ГГЦ
Authors: Снегур Д.А. , Щекатурин А.А.
Published: July 2020

В докладе представлены результаты исследования и разработки активной фазированной антенной решетки (АФАР) на основе кремниевой монолитной интегральной схемы (МИС) управления амплитудой и фазой сигнала, а также печатных антенных излучателей диапазона частот ниже 6 ГГц.
The article deals with research and development results of an active electronically scanned antenna (AESA) based on silicon monolithic integrated circuit (MIC) for amplitude and phase control, as well as printed antennas of sub-6 GHz frequency band.
КОНСТРУКТИВНО-ТЕХНОЛОГИЧЕСКИЕ МЕТОДЫ УЛУЧШЕНИЯ ЭЛЕКТРИЧЕСКИХ ХАРАКТЕРИСТИК РАДИАЦИОННО СТОЙКИХ МИКРОСХЕМ В УСЛОВИЯХ СЕРИЙНОГО ПРОИЗВОДСТВА
Authors: Соловьев А.В.
Published: July 2020

С помощью средств приборно-технологического моделирования и на основе экспериментальных данных проведены исследование и разработка конструктивно-технологических методов улучшения электрических характеристик ЭКБ БИС с сохранением требуемого уровня радиационной стойкости ИС по критерию накопленной дозы стационарного ионизирующего излучения.
The paper deals with the research and development of structural and technological methods for improving the electrical characteristics of LSI operation with preservation of radiation-resistance. Instrument-technological modeling tools and experimental data have been used.
МЕТОДИКА АТТЕСТАЦИИ КОМАНДНЫХ ФАЙЛОВ ФИЗИЧЕСКОЙ ВЕРИФИКАЦИИ С ИСПОЛЬЗОВАНИЕМ КВАЛИФИКАЦИОННЫХ ЯЧЕЕК
Authors: Трифанихина И.Е. , Надин А.С.
Published: July 2020

В данной работе предложена методика аттестации командных файлов физической верификации DRC на основе квалификационных ячеек (КЯ), а также разработан комплексный набор тестовых топологических структур, не зависящих от технологического базиса, и классификация основных типов проверок.
The paper presents methods of attestation of DRC physical verification command files on the basis of Quality Assurance Cells (QA-Cells), as well as a comprehensive set of test topological structures independent of the technological basis and the classification of the main types of checks.
АНАЛИЗ ОТКАЗОВ ИМПОРТНЫХ МИКРОСХЕМ НА ПРИМЕРЕ ИМС HMC463
Authors: Хаханова Т.С. , Беспалов А.В. , Певцов Е.Ф.
Published: July 2020

Проведен оптический и электрический анализ образцов HMC463, восстановлена принципиальная электрическая схема, обнаружена причина отказа прибора. Выявлено различие параметров предоставленных образцов, составлен общий принцип проверки образцов на наличие брака в отсутствие информации о технологии создания прибора.
ИОННО-ЛУЧЕВАЯ ЛИТОГРАФИЯ С ИСПОЛЬЗОВАНИЕМ ОРГАНИЧЕСКИХ РЕЗИСТОВ: ПРЕИМУЩЕСТВА И ВОЗМОЖНОСТИ
Authors: Зайцев С.И. , Шабельникова Я.Л.
Published: July 2020

В работе рассматриваются несомненные преимущества метода ионной литографии по сравнению с широко используемой электронно-лучевой литографией. Описываются методики определения чувствительности и контраста органических резистов, приводятся результаты сравнения этих величин для случаев экспонирования ионным и электронным пучками.
АЛГОРИТМ РАСЧЕТА ОКОН ПРОЦЕССА ФОТОЛИТОГРАФИИ НА ОСНОВЕ МОДЕЛИ РЕЗИСТА С ПОСТОЯННЫМ ПОРОГОМ
Authors: Шамин Е.С. , Харченко Е.Л.
Published: July 2020

Данная работа посвящена описанию возможного алгоритма создания моделей резиста с постоянным порогом и расчета окон процесса на их основе. Приведенные изыскания реализованы в виде программного средства, использующего средства моделирования фотолитографии Mentor Graphics Calibre.
This work is dedicated to the description of one of possible algorithms of constant threshold resist model generation used for photolithography process window calculation. This algorithm has been realized in the form of a program using Mentor Graphics Calibre modeling tools.
РЕШЕНИЕ ОСНОВНЫХ ПРОБЛЕМ ЭВРИСТИЧЕСКИХ АЛГОРИТМОВ РАССТАНОВКИ КРИСТАЛЛОВ В ПОЛЕ ФОТОШАБЛОНА ДЛЯ ПРАКТИЧЕСКОГО ИСПОЛЬЗОВАНИЯ
Authors: Березин А.А. , Шканакина М.Д. , Иванов В.В. , Кузовков А.В.
Published: July 2020

Были изучены существующие эвристики расстановки кристаллов в поле фотошаблона. Выявлен ряд фундаментальных ограничений, препятствующих их практическому использованию. Предлагается ряд решений для снятия этих ограничений.
A study of existing heuristic floorplanning algorithms has revealed a series of fundamental drawbacks that limit their practical usage. The authors have offered a solution for each limitation.
ВЛИЯНИЕ КОНСТРУКТИВНЫХ ЭЛЕМЕНТОВ И МАТЕРИАЛОВ ОБЪЕМНОЙ УЛЬТРАВЫСОКОЧАСТОТНОЙ МЕТКИ, РАЗРАБОТАННОЙ ПО ПРИНЦИПУ ЗАМКНУТОЙ ПОЛОСКОВОЙ ЛИНИИ ПЕРЕДАЧИ, НА ЕЕ РЕЗОНАНСНУЮ ЧАСТОТУ И ДАЛЬНОСТЬ СЧИТЫВАНИЯ ПРИ КОНТАКТЕ С МЕТАЛЛАМИ
Authors: Эпов И.В.
Published: July 2020

Данная работа посвящена исследованию RFID-систем. Была разработана математическая модель, связывающая конструктивные элементы объемной 3D-метки с ее резонансной частотой, далее бьши спроектированы на ее основе реальные объемные метки, работающие на частоте 867 МГц. Также было дано качественное объяснение сдвига резонансной частоты метки при ее контакте с металлическими поверхностями.
This work is devoted to the study of RFID-systems. It presents a mathematical model linking the structural elements of the 3D volumetric label with its resonance frequency, as well as real volumetric labels operating at a frequency of 867 MHz on its basis. Besides, it gives a qualitative explanation of the shift of the resonance frequency of the label in contact with metal surfaces.
PENGGUNAAN INSTRUMEN DIAGNOSTIK TWO-TIER UNTUK MENGANALISIS MISKONSEPSI ASAM BASA SISWA SMA DAN MA
Authors: Fajri Achmad Yandi Rahmatul , Agung Salamah , Saridewi Nanda
Published: July 2020

Penelitian ini bertujuan untuk menganalisis dan mendeskripsikan miskonsepsi siswa SMA dan MA di kota Serang pada materi asam basa. Data diperolah dari instrumen yang terdiri dari 16 butir soal dan melibatkan 456 siswa kelas XI dari 5 Sekolah Menengah Atas dan 2 Madrasah Aliyah di Kota Serang. Metode penelitian ini adalah deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa miskonsepsi terjadi pada setiap konsep yang ada pada materi Asam Basa, dengan persentase umum rata-rata persentase siswa kategori miskonsepsi sebanyak 36% siswa, termasuk kriteria sedikit siswa mengalami miskonsepsi. Miskonsepsi yang ditemukan umumnya karena kurang memahami materi konseptual yang dipelajari di sekolah, menggunakan satu teori untuk semua sifat reaksi asam basa, terjadi pemahaman yang terpisah antara konseptual dengan pemahaman algoritma (perhitungan) dan tidak dapat menghubungkan konsep yang dipelajari dengan keadaan lingkingan sekitar.
TISSUE ENGINEERING BIOREACTORS: POTENTIAL APPLICATIONS AND SCALE UP STRATEGY
Authors: ALADAĞ Serhat , YAPAR Evren ALGIN
Published: July 2020

Tissue engineering bioreactors have been used in order to achieve production of artificial tissue, increasing cell proliferation capacity and yield and/or in vitro tissue/disease modelling. Although it is still discussing how to obtain functional and vascular tissue with these bioreactors, preclinical and clinical studies are ongoing. Tissue engineering bioreactors have been used as lab-scale bioreactors until now. Crucial potential application areas can be created by increasing the production capacity and bioprocess efficiency of these bioreactors. In this review, recent bioreactor technologies such as spinner flask, rotating wall/bed, hollow fiber membrane, perfusion and mechanical stimuli bioreactors are briefly presented in terms of their potential applications in medical field especially in the scope of scale-up approaches such as bubble column, stirred tank, membrane, air lift, fluidized packed and bed bioreactors.
Peer Review History:
Received 1 May 2020; Revised 11  June; Accepted 6 July, Available online 15 July 2020
UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.
Received file

Average Peer review marks at initial stage: 6.0/10
Average Peer review marks at publication stage: 8.0/10
Reviewer(s) detail:
Name: Dr. Sally A. El-Zahaby
Affiliation: Pharos University in Alexandria, Egypt
E-mail: sally.elzahaby@yahoo.com
 
Name: DR Viney Chawla
Affiliation: University Institute of Pharmaceutical Sciences
Baba Farid University of Health Sciences
Sadiq Road, Faridkot-Punjab 151203
E-mail: drvineychawla@gmail.com
 
Comments of reviewer(s):
THE RISKS AND ADVANTAGES OF ANTI-DIABETES THERAPY IN THE POSITIVE COVID-19 PATIENT
Authors: F Ferrara , F De Rosa , C Pelliccia , R La Porta , A Vitiello
Published: July 2020

The new Sars-Cov-2 (COVID-19) is causing thousands of deaths worldwide and has caused a global pandemic, one of the biggest health challenges ever faced in history. in the most severe cases, Sars-Cov-2 infection can cause fatal lung injuries. In this context, it is essential to recognise effective therapeutic agents against the virus. There are currently no direct and effective vaccines and antivirals available. People with pre-existing conditions, such as diabetes, and with chronic drug therapies in place may represent complex patients difficult to manage clinically during COVID-19 infection and at high risk of major complications. The regulation of blood glucose and the adoption of appropriate measures are critical aspects to consider for the diabetic patient in this pandemic period, especially in the patient with ongoing infection. In this article we describe the current evidence in the literature on the possible risks of side effects caused by taking antidiabetic drugs in the COVID-19 patient and the data on extra homeostasis glycemic activity useful to fight viral infection.
Peer Review History:
Received 25 May 2020; Revised 8 June; Accepted 3 July, Available online 15 July 2020
UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.
Received file

Average Peer review marks at initial stage: 5.5/10
Average Peer review marks at publication stage: 7.0/10
Reviewer(s) detail:
Name: Dr. Heba M. Abd El-Azim
Affiliation: Damanhour University, Egypt
E-mail: h_m_abdelazim@hotmail.com
 
Name: Dr. George Zhu 
Affiliation: Tehran University of Medical Sciences, Tehran, Iran
E-mail: sansan4240732@163.com
 
Comments of reviewer(s):

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Authors: Almezgagi Maged , Zhang Yu , Al-shaebi Fadhl , Mahyoub Mueataz A. , Reem ALariqi , Shoaib Muhammad , Shamsan Emad , Gamah Mohammed , Hezam Kamal , Abbas Abdul Baset , Xiaozhou Wang , Xiangqun Shen , Qianqian Ma , Han Ying , Jia Ruhan , Zhang Wei
Published: July 2020

Inflammatory bowel disease (IBD) encompasses a spectrum of diseases, with Crohn's disease (CD) and ulcerative colitis (UC) representing the two broadest subtypes of IBD. Multiple extraintestinal manifestations (EIMs) are more frequent in (IBD); 5% –50% of the patients might be affected. The most often implicated sites of manifestations are musculoskeletal and dermatological structures. However, while some symptoms like peripheral arthritis and erythema nodosum correlate with IBD progression, others have their own course of disease like axial arthropathy, gangrenosis of the pioderma and primary sclerosic cholangitis. This review would provide a summary of the most frequent EIMs and their prevalence.
Peer Review History:
Received 31 May 2020; Revised 7 June; Accepted 4 July, Available online 15 July 2020
UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.
Received file

Average Peer review marks at initial stage: 5.5/10
Average Peer review marks at publication stage: 7.0/10
Reviewer(s) detail:
Name: Dr. Md. Parwez Ahmad
Affiliation: National Medical College, Birgunj, Nepal
E-mail: parwezmedicine@gmail.com
 
Name: Dr. George Zhu 
Affiliation: Tehran University of Medical Sciences, Tehran, Iran
E-mail: sansan4240732@163.com
 
Comments of reviewer(s):
PERANCANGAN MODUL PRAKTIKUM KOMPUTER & JARINGAN DASAR BERBASIS MULTIMEDIA INTERAKTIF PADA SMKN 1 KOTA JANTHO
Authors: Ammarsyah Ammarsyah , Yusran Yusran , Basrul Basrul
Published: July 2020

Penelitian ini bertujuan untuk mengetahui bagaimana hasil belajar dan respon siswa terhadap modul praktikum komputer dan jaringan dasar berbasis multimedia interaktif menggunakan Macromedia Flash 8. Metode yang digunakan dalam penelitian ini adalah metode Research And Development (R&D). Adapun pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif. Untuk melihat hasil belajar siswa SMKN 1 Kota Jantho maka dilakukan tes, dengan bentuk Pre-Test dan Post-Test.Untuk melihat ketertarikan siswa terhadap modul praktikum maka dilakukan pembagian angket respon. Hasil penelitian ini menyatakan bahwa nilai rata-rata pada hasil Pre-Test adalah lebih rendah yaitu 39,79 dibandingkan Post-Test sebanyak 53,33. Dapat disimpulkan bahwa pembelajaran menggunakan modul praktikum komputer dan jaringan dasar berbasis multimedia interaktif menggunakan Macromedia Flash 8 berpengaruh terhadap hasil belajar siswa.Adapun respon siswa SMKN 1 Kota Jantho Aceh Besar terhadap modul praktikum komputer dan jaringan dasar berbasis multimedia interaktif adalah baik. Dibuktikan dengan hasil presentase data angket menunjukan  bahwa setiap butir soal, siswa dominan merespon pembelajaran dengan respon positif, nilai rata-rata presentase respon positif pada lembaran koesioner adalah 77,9%, sedangkan siswa dengan respon negatif sebanyak 22,1% maka dapat disimpulkan bahwa siswa tertarik belajar menggunakan modul praktikum ini.