bluuebunny/crossref_metadata_2025 huggingface dataset:
КОМПЛЕКТ СБИС ДЛЯ ПОСТРОЕНИЯ БОРТОВЫХ СЕТЕЙ SPACEWIRE
Authors: Дымов Д.В. , Эннс В.И. , Эннс А.В. , Казайкин Д.С. , Полищук В.В. , Андреев А.С. , Леонова А.В.
Published: July 2020

Разработан комплект СБИС для построения бортовых сетей космических аппаратов на основе технологии SpaceWire. Приведены характеристики предлагаемых микросхем и краткое описание транспортного протокола СТП-ИСС. Показаны варианты построения бортовой сети КА с применением данного комплекта СБИС.

The paper presents a set of VLSI for building on-board spacecraft networks based on SpaceWire technology. The characteristics of the proposed chips and a brief description of the transport protocol STP-ISS have been given, as well as options for building the onboard spacecraft network using this VLSI kit.
АЛГОРИТМЫ И МЕТОДЫ ПРОВЕДЕНИЯ ФУНКЦИОНАЛЬНОГО КОНТРОЛЯ ПЛИС
Authors: Огурцов А.А.
Published: July 2020

В докладе описываются различные подходы и методы, используемые в испытательном центре при проведении функционального контроля (ФК) ПЛИС. Приводится сравнение существующих методов функционального контроля. На основе существующих методов разработаны новые алгоритмы для ФК ПЛИС. Для автоматической реализации алгоритмов приводятся разработанные программно-аппаратные средства.

The article describes various approaches and methods used by the test laboratories for FPGAs functional tests. Besides, it compares existing methods for functional testing. Based on the existing methods new algorithms for functional FPGA test have been developed, as well as software for automatic realization of algorithms.
ДИНАМИЧЕСКИЕ ХАРАКТЕРИСТИКИ СОВРЕМЕННЫХ ВЫСОКОСКОРОСТНЫХ СИСТЕМ СИНХРОНИЗАЦИИ
Authors: Мартиросов В.Е. , Алексеев Г.А.
Published: July 2020

Представлены результаты исследований динамических характеристик современных высокоскоростных систем синхронизации: инновационной глобально линеаризованной системы синхронизации (ГЛСС) и системы ФАПЧ с импульсным частотно-фазовым детектором с накачкой заряда. Показано, что при значительных начальных частотных расстройках выигрыш в быстродействии системы ГЛСС может достигать порядка и выше.

The paper highlights the results of research of modern high-speed synchronization systems dynamic characteristics, namely: the Globally Linearized Synchronization System (GLSS) and the PLL system with a pulsed frequency-phase detector with charge pumping. It has been shown that with significant initial frequency detuning, the acquisition speed gain of the GLSS system can reach an order of magnitude and higher.
SPICE-МОДЕЛИ МОПТ, УЧИТЫВАЮЩИЕ ЭФФЕКТЫ СТАРЕНИЯ
Authors: Харитонов И.А.
Published: July 2020

Рассмотрены и проанализированы схемотехнические (SPICE) модели МОП-транзисторов для учета эффектов старения (временной деградации) их параметров, обусловленных попаданием «горячих» носителей в подзатворный окисел вследствие сильных электрических полей в структурах МОПТ. Рассмотрены модели, используемые в коммерческих пакетах проектирования схем, предложенные другими авторами, и разработанная автором макромодель МОПТ, учитывающая указанные эффекты старения.

The paper highlights SPICE models for MOS FETs with account for aging effects. HCI and NBTI effects have been analyzed, as well as models built-in commercial simulation tools, models developed by some authors and a macromodel developed by the author.
ПРАКТИКА ПРИМЕНЕНИЯ СОКЕТОВ ДЛЯ СТЕНДОВ ТЕСТИРОВАНИЯ И РАЗБРАКОВКИ ПРОЦЕССОРОВ
Authors: Виноградов А.А. , Воробьев А.С. , Гладких А.С.
Published: July 2020

В данной работе описывается практика применения различных высокочастотных сокетов в стендах разбраковки и тестирования на предприятии AO «МЦСТ». Приведены описания и ключевые характеристики четырех серий сокетов. Исходя из опыта эксплуатации, дана оценка и сравнение механических и электрических параметров изделий.

This paper discusses the practice of using various high-frequency sockets in the stands for sorting and testing at “MCST” JSC. Besides, it gives descriptions and key features of three series of sockets manufactured by Ironwood Electronics. Basing on the operating experience, the authors assess and compare the mechanical and electrical parameters of products of various series.
ИССЛЕДОВАНИЕ ПАРАМЕТРОВ СВЧ-АТТЕНЮАТОРОВ С УЧЕТОМ ВЛИЯНИЯ КОНСТРУКТИВНО-ТЕХНОЛОГИЧЕСКИХ БАЗИСОВ
Authors: Калёнов А.Д. , Репин В.В. , Мухин И.И.
Published: July 2020

Рассматривается сравнение параметров СВЧ-аттенюаторов, разрабатываемых в разных конструктивно-технологических базисах: КМОП, КНИ, биполярных и GaAs. Наличие паразитных эффектов на СВЧ-частотах накладывает определенные трудности при проектировании аттенюаторов: в разных технологиях необходимо учитывать различные эффекты. В статье приводится оценка влияния паразитных эффектов на основные параметры СВЧ-аттенюаторов в разных конструктивно-технологических базисах.

The paper compares the parameters of microwave attenuators developed in different structural and technological bases: CMOS, SOI, bipolar and GaAs. The presence of parasitic effects on microwave frequencies imposes certain difficulties on the design of attenuators - in different technologies it is necessary to take into account different effects. The article gives an assessment of the parasitic effects influence on the basic parameters of microwave attenuators in different structural and technological bases.
ИССЛЕДОВАНИЕ НИТРИД-ГАЛЛИЕВЫХ МАЛОШУМЯЩИХ УСИЛИТЕЛЕЙ ПРИ КРИОГЕННЫХ ТЕМПЕРАТУРАХ
Authors: Алипа Д.Г. , Краснов В.В. , Минненбаев В.М. , Редька А.В. , Федоров Ю.В.
Published: July 2020

В статье представлены результаты исследования возможности применения при криогенных температурах водородного уровня дискретных приборов и монолитных схем на основе нитрида галлия в составе малошумящих усилителей сантиметрового и миллиметрового диапазона длин волн для приемных устройств систем дистанционного зондирования Земли из космоса и в составе криогенных комплексов наблюдения космического пространства.

The article presents the results of the research on the possibility of using discrete devices and gallium nitride monolithic circuits at the cryogenic temperatures of hydrogen level as part of low-noise amplifiers of centimeter and millimeter-wave bands used in receivers of Earth remote sensing space systems and in cryogenic systems for space observation.
ЦИФРОВЫЕ ДРАЙВЕРЫ УПРАВЛЕНИЯ НА ОСНОВЕ GAAS
Authors: Курикалов В.В. , Сапожников Е.В. , Хохол Д.С.
Published: July 2020

Представлены расчетные и экспериментальные результаты разработки драйверов цифрового управления (параллельных и последовательно-параллельных) для интеграции в арсенид-галлиевые (GaAs) микросхемы с коммутационными элементами цифрового интерфейса.

The paper presents simulation and experimental results of designed digital control drivers (parallel and serial to parallel) for integration inside gallium arsenide (GaAs) MMIC with switch elements and digital control.
РАЗРАБОТКА СВЧ-ФИЛЬТРОВ НА ОСНОВЕ ОБЪЕМНЫХ АКУСТИЧЕСКИХ ВОЛН
Authors: Двоешерстов М.Ю. , Дудин А.Л. , Казимирский С.В. , Кацавец Н.И. , Чалый В.П. , Шуков И.В.
Published: July 2020

Разработана стандартная технология изготовления многослойных тонкопленочных гетеро-эпитаксиальных структур Ni/(0002)AlN/Mo/n(Si02/Mo) и изготовлены пьезоэлектрические СВЧ-резонаторы и фильтры на основе объемных акустических волн, работающих в диапазоне частот от 5 до 12 ГГц.

Работа выполнена по заказу Министерства промышленности и торговли Российской Федерации в рамках научно-технической программы Союзного государства «Разработка критических стандартных технологий проектирования и изготовления изделий наноструктурноймикро- и оптоэлектроники, приборов и систем на их основе и оборудования для их производства и испытаний», шифр «Луч».
ПОВЫШЕНИЕ УСТОЙЧИВОСТИ РАСПРЕДЕЛЕННОЙ СИСТЕМЫ ПИТАНИЯ КРИСТАЛЛА
Authors: Генералов В.С. , Краснюков Е.А.
Published: July 2020

Рассматриваются практические способы повышения надежности и стабильности системы питания кристалла, позволяющие включить их в стандартный маршрут проектирования или быстро модифицировать дизайн с минимальными затратами на подготовку к производству.

The paper discusses key practical methods of improving a chip power distribution network. These methods can be integrated in the processor design flow and allow modifying a manufactured design at a low cost.
ОПИСАНИЕ И АППАРАТНАЯ ОБРАБОТКА ОШИБОК В ИНТЕРФЕЙСЕ CAN ВЕРСИИ 2.0
Authors: Джафаров В.Р.
Published: July 2020

Подробно изложены раскрытые правила изменения счетчиков ошибок и описание реакций контроллера на различные типы ошибок на линии CAN.

The paper highlights detailed rules for modified error counters and a description of the controller’s signaling at various types of errors on the CAN line.
СИСТЕМЫ ХРАНЕНИЯ ДАННЫХ С УЧЕТОМ АППАРАТНО-ПРОГРАММНОЙ ПЛАТФОРМЫ
Authors: Зуев А.Г. , Махов С.С.
Published: July 2020

Проведен краткий обзор структуры систем хранения данных в развитии от традиционных подходов до технологий, определивших современный вид систем хранения данных. Рассмотрены обобщенная структура и разновидности ее компонентов. Выделены основные требования, определяющие подходы к проектированию систем хранения данных.

The paper presents a brief survey of data storage systems in its evolution from traditional approaches to technologies which have defined actual types of data storage. Besides, it considers a general structure and variety of its components, and lists main requirements defining design approaches.
ТЕСТИРОВАНИЕ СЕРВЕРОВ НА ОСНОВЕ ОРИГИНАЛЬНОЙ ПЛАТФОРМЫ С УЧЕТОМ ПРИМЕНЕНИЯ В СИСТЕМАХ УПРАВЛЕНИЯ
Authors: Бычков И.Н. , Молчанов И.А.
Published: July 2020

В данной работе рассматриваются приемы, способы и результаты тестирования серверов на основе импортозамещающей аппаратной платформы, отличной от широко распространенных, приводятся примеры найденных с помощью данных наборов тестов особенностей.

The paper considers ways, methods and results of complex testing of servers based on original hardware platform that is different from and is a substitute for classic ones. Issues found by sets of these test cases have been shown.
РАЗРАБОТКА СИСТЕМЫ ОХЛАЖДЕНИЯ ДЛЯ МОДУЛЯ НА ОСНОВЕ МНОГОЯДЕРНОГО ПРОЦЕССОРА Ш. М. САЖО
Authors: Сажо Ш.М. , Воробушков В.В. , Гладких А.С. , Сенченков С.В.
Published: July 2020

В статье рассматриваются особенности реализации систем охлаждения для компактных модулей конструктива «Евромеханика» на базе микропроцессора серии «Эльбрус». Решена задача обеспечения необходимого теплового режима работы процессорного модуля в условиях дефицита пространства для размещения системы охлаждения. Произведенный оценочный расчет показал недостаточность пассивного охлаждения микропроцессора «Эльбрус-4С» с тепловыделением 60 Вт. В связи с этим была разработана 3D-модель активной системы охлаждения с габаритами 5,5 х 10,3 х 4,6 см. Для оптимизации геометрии радиатора и скорости вращения вентилятора произведены тепловые расчеты в программе SolidWorks Flow Simulation, по результатам которых предполагалось, что оптимизированная система охлаждения обеспечит температуру на кристалле процессора «Эльбрус-4С» не более +87 °С (при температуре окружающей среды +55 °C). С учетом результатов исследования для проведения испытаний было изготовлено три опытных образца. Дальнейшие испытания, проведенные на опытных образцах, показали эффективность системы охлаждения и высокую точность результатов моделирования. Во время испытаний в климатической камере при температуре +55 °С температура на кристалле микропроцессора не превысила +84 °С (разница в 3 °С по сравнению с расчетной).
ЦИФРОВЫЕ ТЕХНОЛОГИИ В УПРАВЛЕНИИ КАЧЕСТВОМ РАДИОЭЛЕКТРОННОЙ АППАРАТУРЫ
Authors: Афанасьев В.Б. , Воробьев Т.К. , Мамаев В.А. , Медведев В.М. , Колегов К.М.
Published: July 2020

Внедрено инновационное программное обеспечение с элементами софт-роботизации для управления качеством продукции и контроля надежности комплектующих изделий (КИ), ЭКБ и ЭРИ. Предложена архитектура построения базы банных (БД) информационной системы (ИС) системы менеджмента качества (СМК) предприятия. Приведены результаты оценки показателей качества и надежности ЭКБ.

Innovative software with elements of software robotization for the purposes of product quality management and reliability control, including electronic components, has been implemented. The database architecture (DB) as part of an information system (IS) for a quality management system (QMS) has been proposed. Examples of calculations of quality and reliability indicators are given.
ОСОБЕННОСТИ АРХИТЕКТУРЫ И ОСНОВНЫЕ ХАРАКТЕРИСТИКИ АППАРАТНОГО ВИДЕОКОДЕКА СТАНДАРТА H.264 В СОСТАВЕ МИКРОСХЕМЫ 1892ВМ14Я
Authors: Беляев А.А. , Петричкович Я.Я. , Солохина Т.В. , Беляев И.А.
Published: July 2020

Рассмотрены особенности архитектуры и основные характеристики аппаратного видеокодека по стандарту H.264, входящего в состав микросхемы 1892ВМ14Я (MCom-02). Описан механизм синхронизации потоков данных на основе набора флагов событий. Приведены экспериментальные результаты измерения характеристик производительности разработанного видеокодека на реальных видеосюжетах при различных форматах передаваемого изображения.

The paper considers main architectural features and characteristics of H.264 hardware video codec IP-core as a part of MCom- 02 system-on-chip (SoC). Bedides, it presents data flow synchronization mechanism based on event flags set, as well as experimental results of performance measurements for the designed video codec IP-core obtained for different video sequences and different image formats.
ПЕРСПЕКТИВЫ РАЗВИТИЯ И ТРЕБОВАНИЯ К КОМПОНЕНТНОЙ БАЗЕ РАДИОЛОКАЦИОННЫХ СИСТЕМ
Authors: Синани А.И.
Published: July 2020

Представлены результаты создания радиолокационных систем для авиации и наземных мобильных комплексов. Проведен анализ требований к компонентной базе. Обосновываются требования к ключевым СВЧ- и цифровым модулям управления с учетом тенденции развития техники. Предлагаются пути объединения усилий разработчиков систем и электроники для достижения поставленных задач.

The author analyzes airborne and ground-based mobile antenna systems development, discusses the antenna components requirements, gives grounds for key microwave and digital control units requirements with respect to technologies current trends. Besides, the author suggests a roadmap for the researchers, developers and vendors joint efforts.
Сорбционно-­спектрофотометрическое определение катехоламинов в моче и плазме крови с использованием сверхсшитого полистирола и наностержней золота
Authors: Горбунова М.В. , Толмачева В.В. , Апяри В.В.
Published: July 2020

Исследована возможность сочетания твердо­фазной экстракции природных катехоламинов (адреналина, норадреналина и дофамина) на микроколонке, заполненной сверхсшитым полистиролом, с их последующим спектрофото­метрическим или твердофазно-­спектроскопическим определением в элюате с использованием наностержней золота или их нанокомпозитов с пенополиуретаном. Изучена десорбция катехоламинов со сверхсшитого полистирола различными элюентами. Показано, что количественное элюирование всех трех катехоламинов достигается при исполь­зовании 6 М уксусной кислоты, которая в качестве элюента хорошо сочетается с предло­женными вариантами определения. Описаны особенности динамического сорбционного извлечения катехоламинов из мочи и сыворотки крови. Оно позволяет снизить влияние компонентов матрицы и повысить чувствитель­ность анализа за счет концентрирования. Средний коэффициент концентрирования составляет 10–56 при объемах пробы 10–300 мл. Разработанные способы дают возможность определять катехоламины в моче на уровне их нормального содержания.
Сравнительный анализ разделения платины (IV) и палладия (II) при различных вариантах градиентного элюирования
Authors: Рудик И.С. , Катасонова О.Н. , Марютина Т.А. , Спиваков Б.Я.
Published: July 2020

Предложены две схемы экстракционного разделения платины (IV) и палладия (II) из хлоридных растворов во вращающихся спиральных колонках (ВСК) – градиентное разделение вследствие смены концентрации элюента в подвижной фазе и за счет создания градиента концентрации экстрагента в неподвижной фазе. В качестве неподвижной фазы в ВСК выбран реагент класса четвертичных аммониевых оснований – хлорид метилтриалкиламмония (МТАА). Исследовано поведение Pd(II) иPt(IV) при их совместном присутствии в хлоридных растворах в зависимости от концентрации хлорид-иона, кислотности раствора и концентрации экстрагента. Показано, что создание градиента концентрации экстрагента в неподвижной фазе позволяет добиться полного разделения металлов и получить выделяемые фракции платины и палладия с чистотой более 99,90%.
Определение катехинов в образцах зеленого чая методом ВЭЖХ с амперометрическим детектором
Authors: Яшин А.Я.
Published: July 2020

Впервые проведено сравнение содержания катехинов в образцах зеленого чая основных производителей этого напитка: Китая, Индии, Шри-­Ланка, Вьетнама, Индонезии. Катехины – основные полифенолы-­антиоксиданты зеленого чая. Они обеспечивают его высокую антиоксидантную активность и положительное влияние на здоровье человека. Основных катехинов в зеленом чае от шести до двенадцати, их определяют как правило методом ВЭЖХ с разными детектирующими системами. Потребление зеленого чая с большим содержанием катехинов снижает риск опасных болезней: сердечно-­сосудистых, онкологических, нейро-­дегенеративных и др. Катехины подавляют опасную бактерию, Геликобактер пилори, вызывающую болезни желудка, и благотворно влияют на микробиоту кишечника человека. Самый активный катехин­эпигаллокатехин галлат подавляет даже метастазы некоторых видов рака. Катехины зеленого чая снижают активность вируса гриппа и других вирусных заболеваний.
Новый микроскоп для электронной трехмерной кристаллографии
Authors: Башкирцев В.С.
Published: July 2020

Рассмотрен метод электронной кристаллографии как инструмент структурной биологии, альтернативный рентгеновской кристаллографии. Новый просвечивающий микроскоп CRYOARM 300 был испытан для сбора данных электронной дифракции вращения для анализа трехмерной структуры белковых макромо­лекул. Приведены результаты анализа тонких трехмерных кристаллов каталазы и мембранного белкового комплекса ExbBD. Благодаря фильтрации электронов по энергиям качество данных заметно улучшилось. Описаны особенности взаимодействия электронов с вмороженным в стекловидный лед криогенным биологическим образцом. Показаны преиму­щества использования электронов бóльших энергий и фильтрации электронов с потерями энергии в электронной трехмерной кристал­лографии.
COMPARATIVE ANALYSIS OF PPP PROJECTS SECTORAL STRUCTURE IN DEVELOPED AND DEVELOPING COUNTRIES
Authors: Đorđević Aleksandar , Rakić Biljana
Published: July 2020

This paper aims to compare the type of public-private partnership (PPP) projects and their sectoral structure in developed and developing countries. This will be done through a comparative analysis of eight countries that belong to the categories of developed and developing countries and besides that implement numerous PPP projects. The results of the analysis indicate that developed countries chosen for this analysis implement more projects and record a higher total value of projects. Their projects are more diversified and apart from economic infrastructure encompass social infrastructure, which does have a higher number of projects, and in some developed countries higher value than economic infrastructure sectors. There is some overlapping between the groups and the sectors as this is not a strict rule that could be applied to all the countries, as each economy is an individual and specific case. As adequate PPP structure leads to economic growth and prosperity of the national economy, it is recommended to adjust the institutional framework, laws and regulations for PPP, attract more private capital, develop basic economic infrastructure and with its help attempt to converge the PPP project structure of developing countries to that of developed countries. The final goal is to have well developed economic infrastructure and then invest more in social infrastructure projects that can affect the wellbeing of all residents in an economy
Al-Qur’an and Modern Geoscience: Part I
Authors: Zaini Muhammad , Abdul Wahid Mulyadi , Hamdan Abd Mujahid
Published: July 2020

Abstract : Islamic tradition and science have been going through a long history. The Islamic world centred in the Middle East was once a centre of knowledge that was marked by the birth of prominent Islamic scientists and the development of knowledge and technology. Islamic tradition and science are naturally integrated. For instance, it can be seen from the necessity of Earth science knowledge in Islamic ritual practising. However, the decline of Muslim civilization also had an impact on science, including in the field of geoscience. This paper seeks to explain the relationship between the Tafsir al-Qur’an and geoscience, among of them are about the creation of the earth, the structure of the earth, as well as tectonic and volcanism, wherein al-Qur’an they are delivered in many parts.Abstrak : Tradisi Islam dan sains mengalami sejarah yang panjang. Dunia Islam yang berpusat di Timur Tengah pernah menjadi pusat pengetahuan yang ditandai dengan lahirnya ilmuan Islam terkemuka dan pengembangan pengetahuan dan teknologi. Tradisi Islam dan sains terintegrasi secara alamiah termasuk integrasi antara ilmu kebumian dan peribadatan ummat Islam. Namun, kemunduran Islam juga berdampak pada kemunduran di bidang sains, termasuk pada bidang kebumian. Makalah ini berupaya memaparkan hubungan antara tafsir-tafsir Al-Quran dengan ilmu kebumian, diantaranya penciptaan bumi, struktur bumi, serta tetonika dan vulkanisme, dimana hal tersebut telah disebutkan di beberapa bagian di dalam Al-Quran.
KAJIAN KEMAMPUAN KOMUNIKASI MATEMATIK SISWA SMK DI KABUPATEN BANDUNG BARAT PADA MATERI PROGRAM LINEAR
Authors: Yuliani Devi , Nurhasanah Nurhasanah , Rohaeti Euis Eti
Published: July 2020

This research aims to examine students' mathematical communication abilities on linear program subject. The research method is using descriptive research with qualitative approach. The subjects who is selected in this research is 5 students of 11th Grade from vocational school in West Bandung regency. The instrument of this research is in the form of test and interview. The result of the research is mathematic communication ability of 11th Grade vocational school students in West Bandung regency in understanding linear program subject is still low. Conclusion of this research is students effort of daily events in language or mathematical symbols or composing a mathematical model of an event in question 1 of 35.0%, students effort in painting or presenting real objects, drawings, and diagrams in the form of ideas and or mathematical symbols at number 2 of 30.0%, and the students effort in explaining ideas, situations and mathematical relationships, both orally and in writing using real objects, images, graphs and algebraic expressions in question 3 of 45.0%. Abstract english version, written using Time New Roman-12, italic. Abstract contain research aim/purpose, method, and reseach results; written in 1 paragraph, single space among rows, using past tense sentences.
PENGARUH MEDIA TIMBANGAN YANG BERORIENTASI MODEL POLYA DAN KEMANDIRIAN BELAJAR MAHASISWA TERHADAP PEMAHAMAN KONSEP MATEMATIS MAHASISWA TADRIS MATEMATIKA STAIN GPA
Authors: Hilliyani Hilliyani
Published: July 2020

Learning media is seen as a communication tool that bridges between abstract ideas and the real world, learning media also makes the process of interaction independence, communication and material delivery between educators and students so that it can take place in an appropriate and efficient manner. The purpose of this study was to determine the effect of the scales media oriented on the model of politics and learning independence on understanding the mathematical concepts of STAIN GPA mathematics students. The method used in this study is a quasi-experimental method. The subject of this study was a fifth semester mathematics student consisting of 26 students. Sampling from this study is by using population samples. Data collection before and after treatment was obtained from the test scores on the ability to solve mathematical questions in linear program subjects, PLSV and PTSLV. The test given consists of 10 questions in the form of essays. In addition to using the test in this study also used a questionnaire to see the independence of student learning which consisted of 22 item statements. The results showed that it was 15.65 ≥ 2.05 so that Ho was rejected and Ha was accepted, or in other words the use of the Polya model oriented scales media and learning independence could have a positive and significant effect on understanding the mathematical concepts of STAIN GPA Mathematics Students.
IMPLEMENTASI MODEL PEMBELAJARAN MATEMATIKA PENDIDIKAN SEKOLAH DASAR BERBASIS KEUNGGULAN LOKAL DI KABUPATEN ACEH TENGAH
Authors: Harahap Rosliana , Lubis Nur Ainun , Nurmalina Nurmalina
Published: July 2020

Purpose of this study is to: to find out the objective conditions of local superiority in mathematics learning in elementary schools in Central Aceh Regency, to design mathematical learning models based on local superiority of class I students, and to find out student responses to local excellence based mathematics learning models in Central Aceh Regency. The subjects of this study were all 4th grade students of elementary school in Bebesen Central Aceh District. And the samples are SD 1 Bebesen, SDN 2 Bebesen, SDN 5 Bebesen, SDN 8 Bebesen, SDN 9 Bebesen, SD 10 Bebesen, SDN 10 Bebesen, SDN 11 Bebesen, SDN 12 Bebesen, SDN 14 Bebesen, SDN 16 Bebesen, SDN 16 Bebesen, SDN 17 Bebesen, SDN 17 Bebesen, SD IT Scholar. The research results were obtained that: (1) the objective conditions of mathematics learning of elementary students in Central Aceh Regency as follows. a) In the learning process the teacher has not linked mathematics with the local character and potential of the area. b) The mathematics handbook used today has not linked students' personal character. (2) During the learning process of mathematics based on local excellence and the potential character of antusius elementary school students to learn mathematics, the steps of the local superiority-based learning model are (a) the teacher conditions the class, starts with prayer by preparing facilities and infrastructure, doing Apperception of the local potential of central Aceh district b) Presenting contextual problems, Explicitly negotiating, Cooperative intervention, guiding students in groups to discuss contextual issues contained in the LAS. Give students the opportunity to present their model findings through class discussions. c) Guiding students to formulate the results of the discussion while making a summary of the material discussed, Providing material evaluations through giving quizzes or home assignments. The design of elementary school mathematics learning based on locally designed excellence received a good response from all students. 83.74% of students gave a positive response to the local excellence-based learning model. From these results it is expected that the mathematics learning model in the class must be tailored to the needs of students so that the objectives of the learning process can be achieved maximally.
EFEKTIVITAS PEMBELAJARAN KERUCUT BERBASIS TEORI BRUNER
Authors: Irfan Ade , Anzora Anzora
Published: July 2020

One effort that can be done to help teachers is to offer a variety of alternative learning as inspiration for teachers in teaching. As one of the learning theory, theory of Bruner could be one appropriate strategies used in improving student learning outcomes in learning the cone. To reveal the effectiveness of cone learning based on Bruner’s theory, this research uses a quantitative approach with this type of research is quasi experiment. The design of this research is the one-group pre-test-post-test design. The subject is a student of class IX Junior High School. Data collection is done with the test results of the study, observation and question form. The results showed that the activity of students to each category on each RPP is effective, the ability of teachers in managing cone learning based on Bruner’s theory is effective at RPP I achieved an average of 4.44 and on RPP II reaches an average of 4.50. Student response against cone learning based on Bruner’s theory is effective where > 80% of students gave a positive response. Student learning results indicates that 20 students (71.43%) completely studied, while the 8 students (28.57%) is not thoroughly studied. Thus it can be concluded that the mastery learning of classical learning was not met. Even so, there was a significant increase in the mastery learning in Bruner's theory with cone in classical i.e. amounting to 50%. For the students who hadn't learned i.e. 8 students (28.57%) will be given additional duties as well as remedial and homework to help students understand the material cone hadn't he learned.
KEPUASAN MAHASISWA PENDIDIKAN MATEMATIKA DITINJAU DARI LAYANAN DOSEN PENASEHAT AKADEMIK
Authors: Husna Raudhatul , Sari Rita , Anggreini Fenny
Published: July 2020

Lecturer is educators who are under the auspices of higher education institutions. one of the duties of the lecturer is to guide and help develop the potential of students so they can complete their studies. Likewise, the lecturer in the Mathematics Education study program at one of the universities in Langsa city was appointed as an academic advisor (PA). but there are some obstacles that are felt by PA lecturers, such as the absence of a guidance manual, lack of understanding of technology, students consult only once in one semester, and some students only ask for signatures to fill Study Plan Cards (KRS) and Study Results Cards (KHS ) manual. However, students also have other perceptions, according to the interview results, it is known that PA lecturers are only needed to sign the KRS and KHS, some PA lecturers are difficult to find, some PA lecturers do not have time to consult, PA lecturers do not direct courses in the following semester. so the purpose of this study was to express student satisfaction in mathematics education in terms of PA lecturer services. The approach of this research is a quantitative approach. The research sample was 61 mathematics education students with systematic sampling. For data collection techniques using questionnaires and data analysis techniques using simple regression followed by the -F test. The results showed that the level of student satisfaction in terms of PA lecturer services was in a sufficient category, so it can be concluded that there was a significant contribution between the services of PA lecturers to the satisfaction of mathematics education students.
KEMAMPUAN BERPIKIR MAHASISWA CALON GURU DALAM PENGAJUAN SOAL MATEMATIKA TIPE POST SOLUTION POSING DITINJAU DARI GAYA BELAJAR
Authors: Mei Agustina
Published: July 2020

This study aimed to describe the thought process student teachers in the filing of post-type math problem posing solution in terms of learning styles. Filing post about the type of solution posing as students to modify the conditions of interest or questions that have been completed to generate new problems. While the learning styles that students who have learning styles are visual, auditory and kinesthetic (V-A-K) This study used a qualitative approach and data collection techniques done with the learning styles test, test the submission of questions and interviews. This study used three students of University Mathematics Education FKIP Flores who have learning styles are visual, auditory and kinesthetic. The data analysis is done by step - step, namely the reduction of data, presenting data and draw conclusions. As for obtain valid research data, this study used triangulation of time. Subjects who have a visual learning style, can receive information by writing the note and asked on the matter and establish the mathematical model of any information contained on the matter. Subjects in processing information that could link the information given to the concept stored in memory that is the subject says the concept uses existing linear program and derivative material. In finding a way in solving strategies, subject to form models/equations to obtain a set tariff in order to gain the maximum profit. Subject to draw conclusions made about the same as the submission of test questions but changed the context of the information and asked different. Subjects who have auditory learning style, in receiving information by writing and calculating the net profits of each set price and subsequent counting using excel. Subject to process information that is subject may connect the information given to the concept stored in memory that is the subject says the concept uses existing linear program in calculating gains and losses.
PENERAPAN MODEL BRAIN BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS VIII PADA SISWA MTs/SMP
Authors: Iski Nurul
Published: July 2020

Mathematical communication is very important in the process of learning mathematics. Through mathematical communication, students can organize their mathematical thinking in writing and communicate their understanding to others. However students mathematical communication skill are relatively low, so we need a learning model that can improve student’s mathematical communication skills by using brain based learning. The purpose of this research are  : (1) To determine the improvement of student’s mathematical communication skill after using Brain Based Learning Model. (2) To know the comparation between the student’s mathematical communication skill by using Brain Based Learning with convetional learning models. The research method used was a quasi-experimental design with pretest and posttest control group design. The result showed that : (1) The use of Brain Based Learning improves mathematical communication skill significantly. (2) Student’s mathematical communication skill by using Brain Based Learning were better that student’s mathematical communication skills by using conventional learning model.
UPAYA PENINGKATAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SMP MELALUI MODEL INVESTIGASI KELOMPOK
Authors: Fahradina Nova , Mawardati Risy
Published: July 2020

One of the objectives of mathematics learning is to learn to communicate, because through communication students can communicate ideas, reasoning, and be able to compile mathematical evidence using complete sentences, symbols, tables, diagrams, or other media. One learning model that can be applied to improve students' mathematical communication skills is a group investigation model. This study aims to determine the improvement of students' mathematical communication skills between students who obtain group investigative learning and students who obtain conventional learning are reviewed as a whole and based on the level of students. This study uses experimental research. The design of this study was a pre-test post-test control group design. The population in this study were all seventh grade students of SMP Negeri 9 Banda Aceh. Samples are taken through random sampling techniques. To obtain research data, the instrument is used in the form of tests of students' mathematical communication skills. The results of the study showed that the mathematical communication skills of students who received group investigation learning were better than students who obtained conventional learning both overall and based on the level of students.
The Portrait of Reading Strategies Research in Language Education: Policy Recommendations
Authors: Lestari Ida Puji
Published: July 2020

This article reports on reading research in an English as a foreign language (EFL) context.  Literature review as an approach to exploring current theoretical and practical frameworks of reading was used in this paper. Findings suggest that reading, despite seen as a complicated skill to teach in EFL setting, has received multi-facet attentions from scholars. Several studies have investigated reading strategies used by EFL students and the effect of individual differences emerged in the teaching and learning of reading. The results of this review recommend stakeholders to consider reading strategies and learner differences in reading classes as parameters in constructing curriculum for teaching reading in EFL contexts.
Factors Supporting and Hindering the Learning of English as an Additional Language Experienced by a Female Indonesian Student
Authors: Purwati Diana
Published: July 2020

This study investigates factors supporting and hindering a female Indonesian learner in learning English as an Additional Language (EAL). Data were taken through a semi-structured interview. Findings suggested that personal factors (motivation and learning style), and environmental factors (immersion in targeted language, the teacher’s strategy and supporting English study club) have been classified as supporting factors of the participant in learning English.  However, environmental factors, such as lack of supportive environment and learning anxiety, had contributed to hindering the participant in learning English. Suggested pedagogic implication, such as utilizing communicative method and promoting a sense of self-direction are offered at the end of this study.
Pengaruh Modal Sendiri, Total Aset, Volume Usaha Dan Jumlah Anggota Terhadap Sisa Hasil Usaha (Shu) Pada Koperasi Di Kota Yogyakarta
Authors: Ismanto Deny
Published: July 2020

Penelitian ini bertujuan untuk menganalisis pengaruh dari modal sendiri, total asetl, volume usaha dan jumlah anggota secara parsial maupun simultan terhadap sisa hasil usaha (SHU). Populasi dari penelitian ini adalah koperasi di Kota Yogyakarta. Teknik pengambilan sampel menggunakan metode purposive sampling, teknik pengumpulan data menggunakan dokumentasi serta teknik analisis data menggunakan metode regresi linear berganda. Luaran dalam penelitian ini adalah Jurnal Nasional dan Seminar. Hasil penelitian ini menemukan bahwa Modal sendiri tidak berpengaruh terhadap sisa hasil usaha (SHU) koperasi di Kota Yogyakarta. Total asset berpengaruh terhadap sisa hasil usaha (SHU). Volume usaha tidak berpengaruh terehadap sisa hasil usaha (SHU). Jumlah anggota tidak berpengaruh terhadap sisa hasil usaha (SHU). Modal sendiri, total asset, volume usaha dan jumlah anggota berpengaruh secara simultan terhadap sisa hasil usaha (SHU) koperasi di Kota Yogyakarta.
Kajian Prospek Penanaman Komoditas Tebu Rakyat Di Kabupaten Kerinci
Authors: Delis Arman , Nurhayani Nurhayani
Published: July 2020

Penelitian ini bertujuan untuk menganalisis potensi pengembangan perkebunan tebu, prospek pengembangan prosesing komoditas tebu menjadi gula merah dan gula putih, kelayakan pengembangan industri pengolahan gula tebu, integrasi pola pengelolaan perkebunan dan industri gula tebu dan dampak pengembangan perkebun tebu rakyat dan industri pengolahan gula terhadap tingkat kesejahteraan petani. Penelitian ini dilakukan di Kecamatan Kayu Aro dan Kecamatan Siulak. Penelitian ini menggunakan data primer dan data sekunder. Hasil penelitian menunjukkan bahwa Luasan tanaman perkebunan menempati urutan kedua setelah areal TNKS. Kontribusinya mencapai lebih dari seperempat total output daerah atau Produk Domestik Regional Bruto, sentra produksi tebu mengindikasikan bahwa pengembangan perkebunan tebu merupakan salah satu komoditi yang paling tepat dijadikan sebagai alternativ sumber penghasilan petani secara rutin atau berkelanjutan, usaha tani tebu telah menghasilkan keuntungan bagi petani ketika memasuki tahun ketiga. Perolehan keuntungan sebesar angka tersebut dapat memberikan jaminan arus pendapatan rumah tangga secara kontinyu dan berdimensi jangka panjang bagi petani di Kabupaten Kerinci
Strategi Relational Benefit Terhadap Peningkatan Kepuasan Pelanggan Pada Alvira Mart Tikung Lamongan
Authors: Badriyah Nurul , Siswanto Siswanto , Ishaq Ishaq
Published: July 2020

Persaingan yang begitu ketat sekarang ini membuat perusahaan-perusahaan harus mampu memainkan strategi pemasaran yang handal dan mampu menarik minat konsumen. Tujuan dari penelitian ini adalah untuk mengetahui apakah confidence benefits, social benefits, special treatment benefits mempengaruhi secara parsial maupun simultan terhadap kepuasan pelanggan alvira mart. Sampel dalam penelitian ini sebanyak 75 responden. Selanjutnya dilakukan analisis data kuantitatif uji validitas, uji reliabilitas, regresi berganda, korelasi product pearson moment, uji t, dan uji F dengan hasil tiap variabel dinyatakan valid dan reliable. Dari hasil uji t diperoleh confidance benefit berpengaruh positif dan signifikan terhadap kepuasan pelanggan pada Alvira Mart Tikung Lamongan, social Benefit dan special treatment benefit tidak ada pengaruh secara signifikan terhadap kepuasan pelanggan pada Alvira Mart Tikung Lamongan. Dari hasil uji simultan variabel bebas  mempunyai pengaruh yang signifikan terhadap kepuasan pelanggan pada Alvira Mart Tikung Lamongan. Dari uji regresi linier berganda dan hasil uji t menunjukkan bahwa variabel yang paling dominan mempengaruhi peningkatan kepuasan pelanggan pada Alvira Mart Tikung Lamongan adalah confidance benefit.
Distance visual acuity in air force pilots and student pilots when exposed to +Gz acceleration in human centrifuge
Authors: Randjelovic Danijela , Sreckovic Suncica , Sarenac-Vulovic Tatjana , Petrovic Nenad
Published: July 2020

Background/Aim. High speeds that modern aircraft develop during take-off, flight and landing place an additional strain on the organ of vision. Owing to its considerable practical implementation in air combat, the effect of +Gz acceleration on the organ of vision is considered increasingly important for research. Substantial changes in visual functions may occur during high acceleration onset rates. However, it is important for a pilot to maintain visual acuity in order to be able to monitor new functional displays for rapid orientation, scan the configuration of terrain, display of weapons systems and enemy aircraft and deal with additional issues of the complexity of spatial orientation. The aim of the investigation was to establish whether distance visual acuity in air force pilots and student pilots is affected when exposed to +Gz acceleration. ??thods. The study was performed on a defined population consisting of 95 respondents from 21 to 45 years of age divided into two groups. The first group included 65 air force pilots and the second group comprised of 30 student pilots, all of whom were exposed to an acceleration of +5.5 Gz. The testing was per-formed in a human centrifuge, which mimics conditions of real Gz acceleration, in the Department of Biodynamics in Aero Medical Institute (Zemun, Serbia). We examined the obtained differences in distance visual acuity before and after exposure to acceleration. Results. After the testing, all respondents in the group of air force pilots had distance visual acuity of 1.0, while in the group of student pilots a statistically significant difference in distance visual acuity was observed after being exposed to +Gz acceleration. Conclusion. Transient changes in distant visual acuity were more pronounced in the group of student pilots in comparison with the changes in visual acuity in the air force pilots when exposed to the same acceleration values (+5Gz acceleration). Since change in distance visual acuity is the most sensitive physiological indicator when exposed to high acceleration, individual physiological pilot training in the human centrifuge increases tolerance to accelerations, which is important for flight safety in both peacetime and combat conditions.
Improvement of Dynamic Wheel Load Oscillations by Coupling Pitch Motion into Bounce Motion during Pitching Motion of Passenger Vehicle
Authors: KÖYLÜ Hakan
Published: July 2020

The aim of this study is to determine the oscillation center position change that can reduce the dynamic wheel load oscillations during the pitching motion. For this purpose, the pitch and heave motions were coupled to each other during the pitch motion by changing the positions of the pitch and heave oscillation centers according to each other. The degree of coupling is determined by the front and rear spring stiffness. For this, the half-vehicle model that can be coupled to the two-quarter vehicle model with the suspension components were used. With this model, the effects of coupling on dynamic wheel load oscillations were examined in frequency domain according to the location of the center of gravity and vehicle speed. The results showed that the position changes of the oscillation centers can reduce both the front and rear dynamic wheel load oscillations, and this will be slightly affected by vehicle speed variation. It has also been found that this improvement depends on how the damping level of the shock absorber on a wheel will vary with respect to the change in the suspension spring.
MENINGKATKAN PRESTASI BELAJAR BAHASA INDONESIA MELALUI BIMBINGAN KONSELING
Authors: Supariati Ni Made
Published: July 2020

Penelitian ini bertujuan untuk meningkatkan prestasi belajar Bahasa Indonesia siswa di SMP Negeri 2 Kerambitan. Kajiannya dilatarbelakangi oleh tinggi rendahnya prestasi belajar Bahasa Indonesia di sekolah. Datanya diperoleh menunjukkan prestasi belajar Bahasa Indonesia siswa adalah 45% dari 24 siswa yang memperoleh nilai sesuai dengan KKM. Sehingga perlu adanya Bimbingan Konseling dalam meningkatkan Prestasi belajar Bahasa Indonesia tersebut. Setalah dilakukan Bimbingan Konseling pada siswa kelas VIII A Semester I Tahun Pelajaran 2017/2018 di SMP Negeri 2 Kerambitan terjadi peningkatan yang signifikan, yakni pada siklus I meningkat menjadi 63% dengan rata-rata 74 sedangkan pada siklus II menjadi 90% dengan rata-rata 81. Hal ini menunjukkan bahwa Bimbingan Konseling dapat meningkatkan Prestasi Belajar Bahasa Indonesia Siswa Kelas VIII A Semester I Tahun Pelajaran 2017/2018 SMP Negeri 2 Kerambiatan.
MINAT BACA SISWA KELAS V SD NEGERI HARJOWINANGUN 02 TERSONO BATANG
Authors: Hapsari Yuniar Indri , Purnamasari Iin , Purnamasari Veriliyana
Published: July 2020

Artikel ini bertujuan untuk mengetahui faktor yang mempengaruhi minat baca dan tingkat minat baca siswa kelas V SD Negeri Harjowinangun 02 tahun 2018/2019. Jenis penelitian ini adalah penelitian kualitatif dengan pendekatan deskriptif. Obyek penelitian yaitu siswa kelas V SD Negeri Harjowinangun 02 Tersono yang berjumlah 15 siswa. Instrumen penelitian yang digunakan berupa lembar observasi, pedoman wawancara, lembar angket, dan dokumentasi. Hasil analisis berdasarkan observasi, wawancara, dan, angket dapat diperoleh bahwa minat baca siswa kelas V SD Negeri Harjowinangun 02 rendah. Faktor yang mempengaruhi yaitu faktor internal dan eksternal. Faktor internal berupa kecerdasan, minat dan perhatian, motivasi, ketekunan, sikap, kebiasaan membaca, serta kondisi fisik dan kesehatan. Minat baca siswa tidak akan muncul jika tidak terdapat kemauan, kesehatan, kondisi fisik, kecerdasan, dan motivasi dari dalam siswa. Perpustakaan yang seadanya, bahan bacaan yang sudah usang bahkan beberapa tidak layak pakai, rendahnya dorongan dari guru, tidak dorongan dari orang tua, orang tua yang tidak memfasilitasi dikarenakan ekonomi kurang, tidak ada perhatian orang tua terhadap minat membaca anak. kebanyakan orang tua lebih terfokus pada hasil belajar, pembiasaan membaca yang tidak didapatkan siswa sejak kecil. Pengaruh lingkungan dan teman bermain yang tidak terbiasa dengan membaca secara tidak langsung akan mempengaruhi minat baca siswa. Pengaruh teknologi yang tidak terkendali. Misalnya pengaruh smartphone atau gadget tidak digunakan dengan bijak, pengaruh acara televisi sehingga siswa melupakan tugasnya sebagai siswa.