bluuebunny/crossref_metadata_2025 huggingface dataset:
ВЕРИФИКАЦИЯ ВОССТАНОВЛЕННЫХ СУММ ОСАДКОВ ПО ДАННЫМ GPM IMERG В ЗАПАДНОЙ СИБИРИ В ЛЕТНИЙ ПЕРИОД
Authors: Картавых М.С. , Пустовалов К.Н. , Нагорский П.М.
Published: December 2022

В работе представлены результаты верификации восстановленных сумм атмосферных осадков на основе микроволновых спутниковых измерений GPM IMERG со стандартными наблюдениями на гидрометеорологических станциях Западной Сибири в летний период. Результаты выявили хорошую согласованность данных GPM IMERG и наземных наблюдений на сети метеостанций с коэффициентом корреляции 0,987. Проведенный статистический анализ показал, что средняя невязка суточных сумм осадков по данным GPM IMERG и наземным наблюдениям по всем рассмотренным случаям составляет 1,2 мм. Полученная точность данных GPM IMERG позволяет использовать их для большинства задач.
АНОМАЛИИ УВЛАЖНЕНИЯ В КРУПНЫХ РЕЧНЫХ БАССЕЙНАХ ЕВРОПЕЙСКОЙ РОССИИ В ЭПОХУ ПОТЕПЛЕНИЯ СЕРЕДИНЫ ХХ СТОЛЕТИЯ: ЦИРКУЛЯЦИОННЫЕ ФАКТОРЫ И АНАЛОГИ В УСЛОВИЯХ СОВРЕМЕННОГО КЛИМАТА
Authors: Попова В.В. , Бокучава Д.Д. , Матвеева Т.А.
Published: December 2022

На основе данных сеточных архивов данных наблюдений GISSTemp.1200, HadCRUT.5, HadSLP2, а также реанализов XX столетия NOAA-CIRES Twentieth-Century Reanalysis V2, ECMWF ERA20C, CERA20C, проводится анализ значимых для увлажнения и формирования речного стока климатических характеристик и крупномасштабной атмосферной циркуляции в крупных речных бассейнах Европейской России (ЕР) в периоды подъема и беспрецедентного падения годового стока Северной Двины и Волги в 1920-1940-х гг. прошлого столетия, о которых свидетельствуют длинные, с 1982 гг., ряды наблюдений.
МОДЕЛИРОВАНИЕ ФАЗОВОЙ КОРРЕКЦИИ СИНУСОИДАЛЬНЫХ ИСКАЖЕНИЙ В АДАПТИВНОЙ ОПТИЧЕСКОЙ СИСТЕМЕ С КОНЕЧНЫМ БЫСТРОДЕЙСТВИЕМ
Authors: Волков М.В. , Стариков Ф.А.
Published: December 2022

В работе выполнено численное исследование эффективности коррекции синусоидальных фазовых искажений в адаптивной оптической системе (АОС) с конечным быстродействием. Показано, что при значениях отношения ширины полосы АОС к частоте синосуидальных искажений νAOS /νturb <1 работа АОС никак не сказывается на качестве пучка, он не корректируется. С ростом νAOS / νturb от 1 до 6 наблюдается рост расходимости в результате коррекции, при νAOS / νturb =2,5 этот рост расходимости сменяется ее монотонным спадом. Снижение расходимости лазерного пучка относительно исходного значения наблюдается при νAOS / νturb >6.
ИССЛЕДОВАНИЯ РЕГИОНАЛЬНЫХ ОСОБЕННОСТЕЙ СЕЗОННОЙ ИЗМЕНЧИВОСТИ ФИТОПЛАНКТОНА В ЧЕРНОМ МОРЕ ПО ДАННЫМ СКАНЕРА MODIS
Authors: Востокова А.С. , Востоков С.В. , Салинг И.В.
Published: December 2022

На основе данных дистанционного зондирования сканером MODIS изучены региональные особенности сезонной изменчивости фитопланктона в Черном море. Верификация спутниковых данных проведена с использованием массива контактных измерений ХЛ в разные сезоны года. Построены карты среднемесячных значений хлорофилла за двадцатилетний период и диаграммы сезонной изменчивости для двадцати локальных акваторий Черного моря. Проанализированы особенности сезонной изменчивости фитопланктона с использованием данных по ХЛ рассчитанных на основе измерений сканера MODIS. Выделены, по крайней мере, четыре типа сезонной изменчивости, которые определяются сочетанием климатических, гидрологических и антропогенных факторов.
ТЕОРЕТИКО-ЧИСЛЕННОЕ МОДЕЛИРОВАНИЕ СВЯЗИ АЭРОЗОЛЬНОЙ ЗАГРЯЗНЕННОСТИ АТМОСФЕРЫ И НАПРЯЖЕННОСТИ ЭЛЕКТРИЧЕСКОГО ПОЛЯ НА БАЗЕ ДАННЫХ ЦГМ ИДГ РАН
Authors: Крашенинников А.В. , Локтев Д.Н. , Соловьев С.П.
Published: December 2022

Представлена теоретико-численная модель оценки загрязненности атмосферы для случая убывающей с высотой концентрации, приводящий к явному выражению характеристик друг через друга. Представлены некоторые значения рассчитанных параметров. Проведена верификация модели путём сравнения рассчитанных величин концентраций мелкодисперсных частиц и измеренных вариаций концентраций пыли PM2.5.
ИССЛЕДОВАНИЕ СПЕКТРОВ КОМБИНАЦИОННОГО РАССЕЯНИЯ КРИСТАЛЛОВ ZnGeP2
Authors: Князькова А.И.
Published: December 2022

В работе исследовались кристаллы ZnGeP2 с разным порогом оптического пробоя. Спектры комбинационного рассеяния кристаллов получены с помощью системы inVia Reflex с длиной волны возбуждения 785 нм. полученные спектры комбинационного рассеяния кристаллов с разным порогом оптического пробоя имеют одинаковые пики на частотах 119.9, 245.5, 326.8 и 387.7 см-1 характерные ZnGeP2 соединению. Отличающиеся пики свидетельствуют о различной лучевой стойкости исследуемых кристаллов.
ИССЛЕДОВАНИЕ АНОМАЛЬНОЙ ДИНАМИКИ АНТАРКТИЧЕСКОГО ПОЛЯРНОГО ВИХРЯ С ИСПОЛЬЗОВАНИЕМ МЕТОДА ОКОНТУРИВАНИЯ ВИХРЯ
Authors: Зуев В.В. , Савельева Е.С.
Published: December 2022

Рассмотрена динамика антарктического полярного вихря во время внезапного стратосферного потепления весной 2002 г. с использованием метода, основанного на оконтуривании вихря. Весной 2002 г. аномальное ослабление антарктического полярного вихря, предшествующее его разрушению, наблюдалось после снижения площади вихря менее 10 млн. км2 и последующего уменьшения средней скорости ветра по границе вихря ниже 30 и 45 м/с соответственно в нижней и средней стратосфере. При этом полярный вихрь становился небольшим циклоном (характеризующимся высокими температурами в его пределах и отсутствием динамического барьера) и разрушался в течение ~ 3-х недель. В средней стратосфере это наблюдалось сразу после расщепления полярного вихря 25 сентября, а в нижней стратосфере – в начале ноября 2002 г.
МЕЖГОДОВАЯ ИЗМЕНЧИВОСТЬ СЕЗОННЫХ ПОЛЕЙ ХАРАКТЕРИСТИК ВЛАГООБОРОТА ТРОПОСФЕРЫ СРЕДИЗЕМНОМОРСКО-ЧЕРНОМОРСКОГО РЕГИОНА
Authors: Данова Т.Е.
Published: December 2022

Приведены результаты пространственного распределения содержания влаги в Средиземноморско-Черноморском регионе в теплый и холодные периоды года. В работе анализируется содержание влаги в слоях тропосферы, в которых перемещается наибольший % влаги в холодный и теплый периоды года. Рассчитано содержание влаги в Средиземноморско-Черноморском регионе для холодного периода года – в слое Земля-700гПа и для теплого периода года – в слое Земля-500гПа. Основной целью исследования является выявление факторов, которые приводят к изменчивости сезонных полей влагосодержания. Показано формирование зоны аномалий влагосодержания в районе Карпат, связанных с зональным переносом влаги в тропосфере. Установлено изменение знака аномалий влагосодержания в последнее 20-летие на 17% от среднего значения.
АТМОСФЕРНАЯ КОРРЕКЦИЯ ПО СПУТНИКОВЫМ ДАННЫМ MODIS И VIIRS С УЧЕТОМ ФАКТОРА ЗАГРЯЗНЕНИЯ АТМОСФЕРЫ КОМБИНАЦИЕЙ РАЗЛИЧНЫХ ТИПОВ АЭРОЗОЛЯ
Authors: Папкова А.С. , Калинская Д.В. , Шибанов Е.Б.
Published: December 2022

В статье рассмотрен период воздействия тропического шторма Офелия на оптические характеристики, полученные для черноморского региона.  Над акваторией Черного моря 18.10.2017-19.10.2017 был зарегистрирован перенос воздушных потоков со стороны северо-запада, который содержал частицы как пылевого аэрозоля со стороны пустыни Сахара, так и частицы дыма от пожаров со стороны Пиренейского полуострова. Анализ влияния комбинированного типа аэрозоля пыль-дым на результаты спутниковых измерений спектрального коэффициента яркости над акваторией Черного моря по данным MODIS и VIIRS показал занижение значений коэффициентов яркости Rrs в коротковолновой области по сравнению с натурными данными, полученными на западных черноморских станциях сети AERONET.
ВЛАЖНОСТЬ ВОЗДУХА В ПОГРАНИЧНОМ СЛОЕ АТМОСФЕРЫ СИБИРИ
Authors: Ломакина  Н.Я. , Лавриненко  А.В.
Published: December 2022

Приведены результаты анализа пространственно-временного распределения влажности воздуха в пограничном слое атмосферы (ПСА) Сибирского региона, оцененных по данным многолетних наблюдений 24 аэрологических станций за период 1981−2020 гг.. Показано, что для среднегодовых и среднесезонных значений влажности зимой, весной и осенью характерно ее уменьшение с юго-запада в направлении на северо-восток региона. Летом влажность воздуха уменьшается от южных широт к северным. Зимний сезон характеризуется инверсионным распределением влаги в ПСА на всей территории Сибири. Весной инверсии влажности наблюдаются только в полярных широтах всего региона, а осенью - в субполярных и умеренных широтах Восточной Сибири.
НЕКОТОРЫЕ РЕЗУЛЬТАТЫ ПОЛИГОННЫХ ЭКСПЕРИМЕНТОВ ПО ИССЛЕДОВАНИЮ ВЛИЯНИЯ ПРИРОДНЫХ ПОЖАРОВ НА ХАРАКТЕРИСТИКИ АТМОСФЕРЫ
Authors: Лобода Е.Л. , Касымов Д.П. , Агафонцев М.В. , Рейно В.В. , Луценко А.В. , Мартынов П.С. , Голубничий Е.Н. , Орлов К.Е. , Старосельцева А.А. , Перминов В.В. , Аршинов М.Ю. , Афанасьев А.Л. , Маракасов Д.А. , Лобода Ю.А. , Гордеев Е.В.
Published: December 2022

В докладе представлены некоторые результаты многолетних экспериментальных исследований влияния модельных степных пожаров на характеристики атмосферы. Установлено локальное изменение метеопараметров и параметры наведенной атмосферной турбулентности, определены характерные газообразные продукты пиролиза и горения, которые попадают в атмосферу в результате природных пожаров. Полученные результаты позволят осуществлять оценку влияния массовых пожаров на экологию регионов, глобальные атмосферные и климатические процессы.
ЧИСЛЕННОЕ МОДЕЛИРОВАНИЕ ИОНОСФЕРНОГО ОТКЛИКА НА СОЛНЕЧНОЕ ЗАТМЕНИЕ 10 ИЮНЯ 2021г НАД п.ЖИГАНСК
Authors: Попов В.И.
Published: December 2022

В работе представлены результаты моделирования эффекта кольцевого солнечного затмения 10 июня 2021г. на высокоширотную ионосферу. Проведено сравнение результатов моделирования с экспериментальными данными станции вертикального зондирования (ВЗ) жиганской ионосферной станции. Показаны вариации критических частот F2 слоя во время солнечного затмения и их сопоставление с данными численной модели. Для численного моделирования состояния ионосферной плазмы, использована полуэмпирическая трехмерная  модель ионосферы, основанной на формализме Эйлера с модулем для предвычисления солнечного затмения [1]. Обнаружено продолжительное понижение критических частот F2 слоя вечерней и ночной ионосферы после солнечного затмения.
АПРОБАЦИЯ РАЗРАБАТЫВАЕМОЙ МИКРОМАСШТАБНОЙ МАТЕМАТИЧЕСКОЙ МОДЕЛИ ТУРБУЛЕНТНОГО ТЕЧЕНИЯ И ПЕРЕНОСА ПРИМЕСИ
Authors: Лещинский Д.В. , Данилкин Е.А. , Старченко А.В.
Published: December 2022

Работа посвящена апробации разрабатываемой микромасштабной математической модели турбулентного течения и переноса пассивной газообразной примеси в уличных каньонах и городских кварталах. Апробация построенного численного метода выполнена на задачи моделирования ламинарного течения в канале. Верификация модели турбулентного течения и переноса примеси проведена на задаче обтекания прямоугольного препятствия и переноса примеси в идеализированном уличном каньоне.
ИЗМЕНЧИВОСТЬ ВЫСОТЫ НИЖНЕЙ ГРАНИЦЫ ОБЛАКОВ В ЗАПАДНОЙ СИБИРИ ПО ДАННЫМ НАБЛЮДЕНИЙ И РЕАНАЛИЗА ЗА ПЕРИОД 2000-2020
Authors: Морару Е.И. , Пустовалов К.Н. , Харюткина Е.В.
Published: December 2022

В работе проводится оценка пространственной неоднородности высоты нижней границы облаков (включая облака вертикального развития) для территории Западной Сибири по данным реанализа и данным наблюдений на метеостанциях за период 2000-2020 гг. Построены карты пространственного распределения, проведен сравнительный анализ пространственной и временной изменчивости. Оценивается влияние конвективной облачности на нижнюю границу общей облачности. Информация о характеристиках облачности, в том числе при наблюдении облаков вертикального развития, необходима для создания надежных моделей климата, уточнения численных прогнозов погоды и обеспечения безопасности полетов в авиации.
10-ЛЕТНИЙ ТРЕНД ВЕРТИКАЛЬНО ИНТЕГРИРОВАННОГО ВОДЯНОГО ПАРА НАД Г. УЛАН-УДЭ
Authors: Дембелов М.Г. , Башкуев Ю.Б.
Published: December 2022

Выполнено сравнение временных рядов уровней влагосодержания тропосферы, полученных в пункте ULAZ (Улан-Удэ, N51°48′, E107°37′, h=517 м) по данным GPS наблюдений и приземных метеонаблюдений в течение 2011 - 2020 гг. Расчет полной зенитной тропосферной задержки (ZTD) по приземным метеоданным выполнялся по упрощенной формуле для средних широт, когда высота тропосферы для водяного пара ограничивалась 11 км. Линейный тренд суммарного влагосодержания PW в пункте ULAZ по GPS наблюдениям составил +0,91 мм за 10 лет (за декаду) и по приземным метеоданным +0,82 мм за декаду. Хотя 10-летний период не может точно отражать реальные климатические тенденции, тем не менее, можно определенно говорить о заметном положительном изменении.
Analisa Hubungan Kebersihan Cargo Bilges dengan Cargo Hold dalam Mendukung Kelancaran Proses Bongkar Muat
Authors: Guntoro Herlan , Rikardo Dapid , Amirullah  , Fahrisani Antaris , Suarsana I Putu
Published: December 2022

Kebersihan daripada sebuah cargo bilges sering menjadi suatu faktor yang mendukung kelancaran jalannya proses bongkar muat di atas kapal. Hal tersebut akan menjadi suatu masalah pada jalannya proses memuat bilamana terdapat gangguan terhadap proses menghisap daripada sumur got atau bilge well. Banyak faktor yang mempengaruhi kualitas hisap dari bilge well. Salah satunya adalah banyaknya kotoran yang menumpuk pada bilge well, sehingga kotoran tersebut menyumbat jalannya air yang seharusnya masuk melalui non return valve yang terdapat pada bilge well. Didasarkan atas permasalahan tersebut, maka didapatkan suatu rumusan masalah tentang apakah yang menyebabkan kurang optimalnya upaya perawatan dan menjaga kebersihan dari Cargo Bilge. Salah satu tujuan daripada penelitian ini sendiri adalah untuk mencari solusi terhadap masalah yang berkaitan dengan banyaknya kotoran atau sampah di Bilges Well agar kualitas hisap dari bilge well itu sendiri tetap bagus dan tidak mengganggu proses hisap air got. Dengan menggunakan metode penelitian yang bersifat kualitatif, didapatkannya suatu pemecahan masalah yang berupa diadakannya pemeriksaan keadaan bilges cargo sebelum dan sesudah bongkar muat, hal tersebut perlu dilakukan untuk menghindari terjadinya kerusakan yang lebih besar terhadap GS Pump yang digunakan sebagai Bilge Pump bilamana masih terdapat kotoran yang menyumbat non return valve. Jadi, dengan melaksanakan pembersihan berkala terhadap kondisi bilge well yang tersumbat kotoran ketika sebelum dan sesudah bongkar muat, kemampuan hisap dari bilge well itu sendiri akan terjaga.
Optimalisasi Perawatan Dewi-dewi Guna Mencegah Terjadinya Hambatan pada Penurunan Sekoci
Authors: Nursyamsu  , Satria Zaldy , Herningsih Siwi Woro
Published: December 2022

Kecepatan dan ketepatan dalam bertindak ketika dalam keadaan kondisi darurat untuk meninggalkan kapal (abandoned ship) sering menjadi penentu berapa jumlah awak kapal yang dapat selamat. Pada saat pelaksanaan abandoned ship itu sendiri, terdapat banayak faktor yang mempengaruhi jalannya evakuasi dari mulai berkumpulnya semua crew di muster station sampai dengan proses embarkasi ke dalam sekoci, juga sampai sekoci penolong dapat diturunkan samapai di atas permukaan laut bilamana kapal tersebut menggunakan dewi-dewi. Sering kali dewi-dewi mengalami macet ketika dioperasikan. Dikarenakan permasalahan tersebut, dapat dirumuskan suatu rumusan masalah di dalam penelitian yakni apa saja faktor-faktor yang menyebabkan hambatan pada penurunan sekoci yang berkaitan dengan dewi-dewi serta menemukan solusi agar dewi-dewi tidak lagi mengalami kemacetan ketika harus digunakan dalam drill maupun real situation. Dengan menggunakan metode penelitian yang bersifat kualitatif, peneliti dapat menemukan pemecahan masalah yang dinilai paling tepat untuk mengatasi permasalahan macetnya dewi-dewi sekoci penolong, yakni dengan peningkatan pemahaman crew kapal akan prosedur perawatan dewi-dewi yang dapat dilakukan setiap minggu yang dimulai dari pembersihan karat-karat yang terdapat pada bagian dewi-dewi dan motor penggeraknya, sampai dengan penggantian wire dan winch bila dirasa perlu untuk diganti.
Analisis Perbandingan Sewa Kapal menggunakan Model Penyewaan Time Charter dan Voyage Charter oleh PT Minamas Plantation
Authors: Premadi Ageng , Kusharyanto
Published: December 2022

Minyak kelapa sawitr termasuk contoh dari muatan curah cair (liquid bulk cargo) yakni muatan curah yang berbentuk cairan yang diangkut dengan menggunakan kapal-kapal khusus. Salah satu perusahaan yang bergerak dalam penjualan minyak kelapa sawit yaitu PT. Minamas Plantation. Dalam melakukan penjualan, perusahaan ini menggunakan sarana transportasi laut berupa kapal sebagai alat angkut untuk mengirimkan muatan tersebut kepada buyer. Kapal yang akan digunakan PT. Minamas Plantation merupakan transportasi yang disewa dengan menggunakan perjanjian time charter dan voyage charter. Mengingat produksi minyak kelapa sawit yang tidak menentu setiap bulannya menyebabkan kurang efisiennya penggunaan kapal sewa time charter. Hal ini dilihat dari kapasitas ruang muat yang ada tidak digunakan secara maksimal, sehingga terjadi tingginya idle capacity dalam pengiriman crude palm oil. Dengan latar belakang masalah tersebut, dapat dijadikan suatu rumusan masalah dalam penelitian tentang hubungan efisiensi penggunaan kapal sewa terhadap biaya sewa dan operasional yang ditanggung oleh PT. Minamas Plantation. Dari penelitian tersebut, diharapkan mendapatkan manfaat berupa bahan pertimbangan praktis ketika mengambil keputusan untuk meningkatkan kinerja perusahaan, terutama ketika perusahaan bertemu dengan permasalahan dilematis yang sama sedemikian halnya.
Upaya Meningkatkan Keselamatan Pelayaran di atas Kapal KMP Kirana IX
Authors: Amirullah  , Purnomo Sandy Wahyu , Agung M. Taufik
Published: December 2022

Keselamatan diatas kapal merupakan hal yang perlu diperhatikan, keselamatan dan keamanan pelayaran merupakan faktor yang sangat esensial dalam menunjang kelancaran pelayaran kapal, karena kecelakaan susah diprediksi dan dapat terjadi dimana saja. Untuk itu sebelum kapal digunakan sebaiknya keadaan dan kondisi kapal perlu diperhatikan. Oleh sebab itu, perlu suatu upaya dalam meningkatkan keselamatan diatas kapal sehingga dapat meminimalisir terjadinya kecelakaan di laut. Penelitian ini dilaksanakan dengan menggunakan pendekatan kualitatif dengan jenis penelitian deskriptif. Tujuan penelitian ini adalah untuk meningkatkan keselamatan diatas kapal dengan beberapa upaya yang dapat dilakukan.
Efektivitas Penerapan Port Waste Management System pada Inaportnet terhadap Pelaporan Data Limbah di atas Kapal di Pelabuhan Tanjung Priok
Authors: Yulianto Andri , Purnaningratri Indah , Purwaningsih Indria
Published: December 2022

Pelabuhan Tanjung Priok merupakan pelabuhan terbesar dan tersibuk di Indonesia, sehingga resiko pencemaran limbah di wilayah perairan pelabuhan sangat besar. Pihak penyelenggara pelabuhan kemudian menerapkan Port Waste Management System (PWMS). Tujuan utamanya adalah untuk memperkecil dan mengurangi pembungan limbah secara ilegal dari kapal ke laut. Hasil analisis data yang diperoleh menampilkan persentase data limbah kapal dari Agustus 2021 hingga Mei 2022 menampilkan persentase 96%. Sedangkan persentase jumlah kapal yang mengisi data limbah kapalnya nol menampilkan persentase 3%. Pengguna jasa cukup tertib dalam melaporkan data limbah kapalnya berdasarkan persentase jumlah kapal yang mengisi di Port Waste Management System (PWMS) dinyatakan stabil pada angka 96%. Hal tersebut juga menjadikan salah satu tolak ukur penerapan Port Waste Management System (PWMS) telah berjalan dengan efektif. Penelitian ini dilaksanakan pada saat peneliti berada di Kantor Kesyahbandaran Utama Tanjung Priok dengan menggunakan metode deskriptif kualitatif. Peneliti menggunakan teknik pengumpulan data dengan observasi langsung, wawancara dengan staff Kantor Kesyahbandaran Utama Tanjung Priok dan pengguna jasa serta pengumpulan dokumen-dokumen yang terkait dengan penelitian.
Optimalisasi Pengawasan Crew terhadap Proses Bongkar Muat pada Kapal Tanker MT Gamkonora
Authors: Rikardo Dapid , Saleh Sahar , Bulqiest Ckimberley
Published: December 2022

Dalam melakukan pelaksanaan bongkar muat perlu dilaksanakan dengan sebaik-baiknya agar terhindar dari masalah yang kerap kali terjadi dalam proses bongkar muat. Permasalahan yang peneliti ambil adalah mengapa diperlukan dilakukan optimalisasi pengawasan crew terhadap proses bongkar muat di MT Gamkonora serta apa penyebab kurang optimalnya proses bongkar muat. Bongkar muat adalah proses pemindahan barang dari satu tempat ke tempat lainnya yang didukung dengan jasa dan peralatan bongkar muat itu sendiri di pelabuhan. Penelitian ini menggunakan metode deskriptif kualitatif yaitu dengan mengumpulkan data melalui observasi, dokumentasi dan wawancara. Berdasarkan hasil dari data-data yang peneliti dapatkan, maka dapat disimpulkan bahwa kurang optimalnya pengawasan bongkar muat disebabkan oleh kurangnya kedisiplinan dan kesadaran awak kapal dari awal proses bongkar muat dimulai misalnya persiapan kapal dalam penerimaan dan penurunan barang. Kesimpulan penelitian untuk menunjang kebijakan dari Pertamina International Shipping mengenai pengendalian pengawasan crew terhadap proses bongkar muat, maka dapat diambil kesimpulan bahwa kurangnya pengawasan pada saat bongkar muat dilakukan perwira jaga dan awak kapal yang terlibat dalam jam jaga.
Deepening interdisciplinarity in scientific research for impact and development
Authors: Okonofua Friday , Omonkhua Akhere , Ntoimo Lorretta
Published: December 2022

Given the multi-faceted developmental challenges that Africa faces, it is not surprising that research that generates development and impact is now a regular discourse in the continent. While scientific research disciplines have grown considerably in recent times and now include domains such as genomics, proteomics, nanotechnology, nanomedicine, bioinformatics, and systems biology, it is evident that these will not translate to impact and development if inter-disciplinary research approach is not purposefully engaged. The Proceedings of the Nigerian Academy of Science recognises inter-disciplinary approach to scientific research as a dominant strategy that can accelerate the pace of development in all sectors in the African region. Inter-disciplinary research also used interchangeably with “multi-disciplinary research’, can be defined as the building of theory and scientific concepts at the interceptions between disciplines to enhance scientific validity and foster the attainment of impact (Choi and Pak, 2006).
Comparative Analysis of Temperature Field and Stress Field of TC4 Ti-tanium Alloy Joint Between CMT and MIG Welding
Authors: ZHANG Rui , GU Xiaoyan , MENG Yu , ZHU Lijuan
Published: December 2022

A model was used for the cold metal transfer (CMT) welding based on the volume heat flux distribution of double ellipsoids loaded with time intervals. The temperature field and stress field of TC4 titanium alloy were numerically simulated by ANSYS software. The distribution laws of temperature, residual stress and post-weld deformation during CMT and MIG welding were studied and compared. It was found that the maximum temperature of the molten pool in CMT welding was fluctuating and rising during the loading process, while the temperature of the molten pool in MIG welding was rising smoothly and the maximum temperature was higher than that in CMT welding. The welding stress field was analyzed by thermal-stress coupling analysis. The stress distribution simulated based on the MIG welding heat source was similar to CMT welding, but the maximum von Mises stress was greater than that of CMT welding. Due to the cooling shrinkage, both of them would produce angular deformation after welding. And the maximum angular deformation simulated based on the MIG welding heat source was greater than that of CMT welding. It was proved by welding simulation that CMT welding could reduce welding heat input and residual stress and deformation after welding.
Effects of Machining Parameters on Electrochemical Multi-Field Coupling
Authors: CHEN Yuanlong , LI Xiang , ZHANG Yichi , LIU Jinyang
Published: December 2022

Electrochemical machining involves three couplings between electric field, flow field and thermal field. The precipitation of hydrogen on the surface of the cathode will affect the entire electrochemical machining process and the final machining quality of the workpiece. Finite element software is used to analyze the effects of different voltages, electrolyte inlet pressure and interelectrode gap on current density, hydrogen volume fraction, conductivity and temperature distribution in this article. The research results show that the increase of processing voltage will increase the current density, hydrogen volume fraction and temperature, and decrease the conductivity of the solution. As the pressure of the electrolyte increases, the current density and conductivity increase, but the hydrogen volume fraction and temperature decrease. The current density, hydrogen volume fraction and temperature decrease, and the conductivity increases when the gap between electrodes increases. At the inlet, the current density and conductivity are relatively large, and gradually decrease along the electrolyte flow direction, while the hydrogen volume fraction and temperature are the smallest at the inlet, and gradually accumulate along the electrolyte flow direction, and reach the maximum at the outlet. Through multi-physics coupling simulation, the current density, temperature, conductivity and bubble distribution in electrochemical machining can be predicted, which can provide a theoretical basis for actual electrochemical machining process parameter selection.
The Effects of the COVID-19 Pandemic on Clinical and Laboratory Follow-up of Patients Diagnosed With Chronic Hepatitis B: A Multicenter, Prospective, Observational Study
Authors: Akgul Fethiye , Arslan Yusuf , Celik Mehmet , Karasahin Omer , Celen Mustafa Kemal
Published: December 2022

Background: Chronic hepatitis B (CHB) patients who are under the treatment of antiviral agents should be monitored in routine control visits. However, during the COVID-19 pandemic, the visits were interrupted. Objectives: This study aimed to investigate whether these patients were affected regarding clinical, laboratory, and treatment outcomes. Methods: This prospective study consisted of CHB patients aged > 18 who were applied to 3 tertiary centers between 14 February and 30 March 2022. The patients were selected from the ones who regularly applied to outpatient clinics and under the treatment of antiviral agents before the pandemic. The demographic and laboratory values, including serologic, biochemistry, and molecular results, were compared between the 2 groups who came and did not come to control visits. Results: A total number of 220 patients were included. More than half (n = 142, 64.5%) were female. The median age was 44 years (19 - 73). A hundred and forty-two (64.5%) patients did not come to control visits during the pandemic. The most common reason was anxiety about COVID-19. The tenofovir treatment was replaced with entecavir (ETV) due to osteopenia and with alafenamide due to osteopenia and/or renal failure. The previous agents were re-started in 27 (79.5%) patients who discontinued the treatment. Conclusions: The COVID-19 pandemic negatively impacted the follow-up of CHB patients. In this regard, 15.5% of patients stopped their treatments. The patients who stopped their follow-ups and continued tenofovir disoproxil fumarate (TDF) had proteinuria and decreases in bone mineral density (BMD) and estimated glomerular filtration rate (eGFR) levels.
L'ordre des mots et le rôle de l'inversion: étude comparée du français et du suédios
Authors: Larsson Ringqvist Eva
Published: December 2022

-
Increasing the anti-jammingness of mobile radio networks with adaptive beamforming.
Authors: Boholii S. , Hurskyi T. , Makarchuk V. , Khyzhyi A.
Published: December 2022

MANET radio networks (mobile radio networks, MRN) are increasingly used for tactical military radio communications in recent years. Anti-jammingness of such radio networks can be much higher compared to conventional radio networks (with or without a repeater) due to the possibility of multiple relay of messages.A promising direction to increase the noise immunity of MRN at the physical level is the use of antenna arrays (AR) with the ability to control the direction of the main radiation, which allows to ensure maximum values of signal-to-interference ratio at the inputs of individual radio stations. At the same time, in order to ensure maximum noise immunity in such MRNs, it is necessary to take into account the peculiarities of the formation of directional diagrams of antennas of radio stations of the network, spatial coordinates of radio stations and jammers.The article analyzes the tasks that arise when implementing the technology of adaptive charting in MRN in the conditions of active electronic countermeasures, the main ones are the following: determination of the spatial coordinates of the own station, network correspondents and the jammer; calculation of the optimal angle of orientation of the main lobe of the antenna pattern when receiving a signal from neighboring correspondents, taking into account the mutual location of radio stations and the jammer; practical implementation of the exchange of coordinate information between radio stations.Taking into account and solving these tasks will ensure the effective implementation of routing protocols in the mobile radio network with the AR, and increase interference protection in both individual information areas and the radio network as a whole.
A sequential method of tuning interval-type fuzzy relations for assessing the security of information systems
Authors: Samoylov I. , Chevardin V. , Konotopets N. , Storchak A.
Published: December 2022

Today, an urgent scientific and technical problem is the creation of systems for assessing the security of information systems from threats that can process fuzzy information. These systems allow you to determine what actions are effective to minimize and prevent threats. The fuzzy model is built on the basis of the Zadeh compositional inference rule, in which the information carrier is the matrix of fuzzy "threat-damage" relations connecting the vector of measures of the significance of threats and the vector of measures of significance of damage. When designing such systems based on fuzzy relations, it is necessary to determine a set of its parameters (WІ - a set of parameters that determine a system model based on fuzzy relations of type I and WІІ - a set of parameters that define a system model based on fuzzy relations of type II). To date, for tuning interval-type fuzzy systems, an independent method is used, which assumes the determination of the set WІІ from "zero", without using the results of tuning the set of parameters WІ, which leads to an increase in the setup time.
The article proposes a sequential method for adjusting fuzzy relations of interval type, which firstly provides for the determination of a set of parameters of fuzzy relations of type I using a genetic-neural algorithm, and then, on their basis, adjustment of only additional parameters, which makes it possible to reduce the average tuning time of a fuzzy model and assess the effect of uncertainty on the accuracy of the assessment.
Analysis of the experience of the combat use of unmanned aerial vehicles against anti-aircraft missile systems in the military conflict in Nagorno-Karabakh.
Authors: Cherednychenko O. , Protsiuk Y. , Shemendiuk O. , Lebed E.
Published: December 2022

An analysis of the latest military conflicts and local wars in Ukraine, Syria, Libya and other regions of the planet clearly demonstrates that practically in each of them there is a new format of warfare, traditional ideas about the forms and methods of armed struggle on the battlefield are being destroyed, and significant adjustments are being made. in the strategy and tactics of achieving victorious results for each side. One of them was the so-called "Karabakh conflict" between Armenia and Azerbaijan over control over the territory of Nagorno-Karabakh. The events of September-November 2020 in the scientific community have been called the “drone war”. It was thanks to modern drones that Azerbaijan gained air superiority and used it to achieve a strategic advantage in the war. Modern unmanned aerial vehicles (UAVs) are able not only to effectively identify the enemy day and night, direct their own firepower at him, but also independently destroy him at a considerable distance from the battlefield.The article discusses the use of a massive UAV raid against anti-aircraft missile systems (SAM) of air defense (air defense) in a military conflict on the territory of Nagorno-Karabakh. Such use of UAVs for air defense air defense systems led to the rapid depletion of their combat resource and, as a consequence, the further inability of these complexes to solve tasks according to their intended purpose. An analysis of the results of the combat use of air defense systems against modern UAVs showed that the detection range of the air defense missile system by the UAV equipment has become relatively the same, and sometimes even exceeds it. In the course of the military conflict in Nagorno-Karabakh, a new tactic for the use of UAVs was developed, which makes it possible to ensure the guaranteed defeat of the air defense missile system and thereby carry out the functional suppression of the air defense system and ensure the gains of air superiority. For a scientifically substantiated confirmation of the possibility of successful destruction of an anti-aircraft missile-gun complex (AMC) by a UAV group, analytical and simulation modeling was carried out and appropriate conclusions were drawn to resolve the military conflict in Donbass.
Järnålderns bebyggelsearkeologi i backspegeln
Authors: Lönn Marianne
Published: December 2022

The article aims at reviewing Iron Age settlement archaeology before the 1990s. This is done with special regards taken to ‘historism’, i.e. taking into consideration the knowledge and values at the time when the interpretations where made. Early settlement archaeology in Scandinavia regarded settlement development as ever continuous and expanding and starting with a few farms in the Early Iron Age. In the absence of settlement sites, place-names and cemeteries were used to indicate the settlements. This was possible since cemeteries, place-names and modern day’s farms were comprehended as a unit while situated at the same place. From the 1990s the settlements sites themselves, when discovered, revealed a different spread in the landscape as well as a development with both expansions and regressions. The article discusses the weaknesses and defects with the construction farm-cemetery (gårdsgravfält ) and with place-names when used in settlement archaeology.
Att omvandla platser av betydelse
Authors: Olsson Hans
Published: December 2022

This article concerns the transformation and re-use of archaeological sites during the pre-Roman Iron Age in the southern part of Värmlandsnäs in the county of Värmland, Sweden. Sites such as rock-carving- and burial sites in this limited geographical area have been re-used and transformed for other functions than their original purpose and within a limited timeframe of a few hundred years. The article discusses potential causes for this action from a socio-economical perspective and how these may have played a role in the restructuring of the landscape during times of change, where older sites were used to validate power structures.
Markradarundersökningar i Rogaland, västra Norge
Authors: Petersson Håkan
Published: December 2022

During 2017–2020, the Archaeological Museum, University of Stavanger, has conducted approximately 40 GPR ( Ground penetrating radar ) investigations in Rogaland, Norway. This is done prior to, or during, archaeological excavations and registrations. This article briefly presents the results from six different sites, discussing results, the potential and limitations to the method as we see it so far. Taking into consideration that the subsoil of the county mostly consists of moraine and/or gravel and stony sand, our investigations indicate that the most common archaeological features are avoiding discovery in the radar sheets. If the benefits of GPR include non-intrusive investigations, seeing several metres into the ground, the drawback is that what we identify is still largely an interpretation, needing further investigation to be validated or rejected. It is therefore important to have a firm and extensive archaeological knowledge and geophysical knowledge for interpretation of the results to make them relevant.
خوانش مکتوبات مولانا بر اساس تاریخ‌گرایی نو
Authors:   دانش‌جوی دکتری ادبیات فارسی دانش‌گاه علّامه طباطبائی، تهران، ایران؛ و کادر علمی دانش‌گاه غالبِ هرات, رحمانی غلام رسول
Published: December 2022

مکتوبات مولانا، از‌جمله متون‌ شاخص مربوط به جامعه و زمانۀ خود است، که از آن‌ اطلاعات خوبی می‌توان استخراج کرد. روی‌کردِ تاریخ‌گرایی نو که هر متن را خُرده‌روایتِ تاریخی می‌داند، در این زمینه می‌تواند کارآیی مؤثری داشته باشد. هدفِ عمدۀ ما در این پژوهش، این بوده است که برای این پرسش‌ها پاسخ بیابیم که: نگاهِ مولانا در مکتوبات وی، به قدرت چه‌گونه است؟ گفت‌مان‌های مهمِ اجتماعیِ محدودۀ جغرافیایی‌یی‌که مولانا در آن می‌زیسته، با‌توجه به مکتوبات وی، چیست؟ در این پژوهش، به‌صورت انتقادی و به روش تحلیل کیفی و با روی‌کردِ تاریخ‌گرایی نو، مکتوباتِ مولانا بازخوانی شده است. یافته‌های ما نشان می‌دهند مولانا، حاکمیت را امری قدسی و الهی می‌داند و انقیاد در مقابل حاکمِ نیک و بد، ضروری‌است. منتِ دین‌داری هم‌چون گفت‌مانی پُررنگ قابل مشاهده است. قدرتِ صوفیان و عارفان در کنارِ حاکمیت، امری قابل توجه است. فقر، دغدغۀ بسیاری از مردم آن روزگار است؛ و حاکمان، از رواداشتنِ ظلم در حق مردم، ابایی ندارند.
ANALISIS PENGARUH TINGKAT PEREKONOMIAN KELUARGA TERHADAP PERILAKU KONSUMTIF MASYARAKAT DESA SETELUK ATAS KABUPATEN SUMBAWA BARAT
Authors: Riani Farida , Nana Sucihati Roos
Published: December 2022

This study aims to determine the effect of the family's economic level on the consumptive behavior of the people at Seteluk Atas Village. The variables in this study are the family's economic level as the independent variable and the consumptive behavior of the people as the dependent variable. Data collection was obtained through the distribution of questionnaires. Data were analyzed by calculating simple linear regression, partial test and determinant coefficient (R2). The results showed that the level of the family's economy had a positive and significant effect on the acceptance of consumptive behavior in the people of Seteluk Atas Village. The ability of the family's economic level in influencing changes on the consumptive behavior of the people at Seteluk Atas Village is 51%, while the remaining 49% is influenced by other factors not examined.
ANALISIS KUALITAS PRODUK DAN KUALITAS PELAYANAN TERHADAP KEPUASAN PELANGGAN (Studi Pada Pedagang Ikan di Pasar Kerato)
Authors: Haryadi Wahyu , Sudiyarti Nining , Kurniawan Egi , Ismawati I , Rachman Rosyidah
Published: December 2022

This study aims to determine the effect of product quality (X1) and service quality (X2) on customer satisfaction of fishmongers in Kerato Market (Y), either partially or simultaneously. This research is associative research, which aims to analyze the influence or relationship between two or among more variables. The data in this research is quantitative in the form of respondents' responses that are collected by distributing a questionnaire. The respondents in this study were 30 customers in Kerato market who selected by accidental sampling. Data analysis performed multiple linear regression analysis techniques, partial hypothesis testing (t- test), simultaneous hypothesis testing (F-test) and determination coefficient test (R2). The findings of this study indicate that both product and service quality affect on customer satisfaction of fishmongers in Kerato market, either partially or simultaneously. The t-count of each variable of product quality and service quality are 2,226 and 2,491, which is greater than the t- table at ? = 5%, which is 2,051. While the F-count value of the test result is 17,438, which is greater than the F-table value at ? = 5%, which is 3,35. The ability of the variable product quality and service quality in explaining the variation of changes in the customer satisfaction variable of fishmongers in Kerato market is 42,6% while the rest 57,4% can be explained by other variables outside the scope of this study.
PENGARUH KARAKTERISTIK WIRAUSAHAWAN PEMULA DALAM UPAYA MENCAPAI KEBERHASILAN USAHA
Authors: Fitriani Yayat , Suprianto S , Puspitasari Ni Kadek Ayu
Published: December 2022

Entrepreneurial characteristics are qualities that can be used as characteristics to identify a person from individual traits in the form of a person's personality. This research was conducted with the aim of knowing whether there is an influence of the characteristics of a beginner entrepreneur in an effort to achieve the success of a boba drink business in Sumbawa sub-district. The research method used is descriptive analysis method, and uses simple linear regression analysis method, and coefficient of determination. The data used in this study are primary and secondary data. The population in this study amounted to 7 respondents with a sampling technique that is by using a questionnaire. The data was processed statistically by using SPSS for windows program tools. The results of this study indicate that the constant value in the equation is 5,694 this means that if there is no change in entrepreneurial characteristics or is considered constant (fixed), then the success of the business is 5,694 units. ) of 0.748 with a significant value of 0.488. the coefficient of multiple linear determination (R2) is 0.101 or 10.1%, so the characteristics have no positive and significant effect on business success and entrepreneurial skills have no positive and significant effect on the success of boba beverage business in Sumbawa sub-district.
KINERJA PENGELOLAAN KEUANGAN DESA TELAGA KECAMATAN LENANGGUAR DALAM MENINGKATKAN GOOD GOVERNANCE
Authors: Fitriyani Ika , Fietroh Muhammad Nur
Published: December 2022

Tujuan dari penelitian ini adalah untuk menilai kinerja keuangan desa Tahun 2016-2020. Penelitian ini dilakukan di desa Telaga Kecamatan Lenangguar. Pada bulan Juni Tahun 2020 menggunakan metode pengumpulan data dengan dokumentasi. Teknik analisis data dilakukan dengan menggunakan rasio efektivitas, rasio efesiensi, dan rasio ekonomis. Hasil penelitian menunjukan bahwa untuk (1) untuk tingkat efektivitas keuangan desa sudah sangat tinggi dan ketergantungan desa telaga dengan bantuan pusat sdah sangat rendah dalam menjalankan sistem pemerintahannya.(2) untuk tingkat efesiensi keuangan desa telaga sudah sangat baik dalam merealisasikan sumber pendapatan desa yang diterima. (3) untuk tingkat ekonomi keuangan desa telaga dari tahun 2016 – 2020 sangat baik dan ketergantungan desa telaga dengan bantuan pusat sudah sangat rendah dalam menjalankan sistem pemerintahannya. Pelaksanaaan Good governance dalaam keuangan desa telaga telah berjalaan cukup baaik. Prosedur tata kelola keuangan telah dirasakan manfaatnya oleh Masyaraakaat dan pemerintah setempat.
PENGARUH BRAND AWARENESS DAN NORMA SUBYEKTIF TERHADAP MINAT BELI ULANG KOSMETIK WARDAH (Studi Kasus Pada Outlet Rukun Jaya)
Authors: Haryadi Wahyu , Fitriani Yayat , Wahyudi Supri
Published: December 2022

This study aims to know the effect of brand awareness, subjective norms toward the repurchase interest of cosmetics brand of Wardah. The type of this study was associative. Associative study is a study that aims to know the effect or relationship between two or more variables. This study analyzes the effect of brand awareness and subjective norms toward repurchase interest of cosmetic brand of Wardah in Rukun Jaya outlet. The data in this study were quantitative and qualitative data and source of data was primary. The number of sample were 30 samples. The techniques to collect data were through observation and questionnaire while data analysis technique was Multiple Linear Regression, t-test, f-test and R2. The results of the multiple regression equation dependent study stated that brand awareness (X1) and subjective norms (X2) had positive and significant effect toward repurchase interest (Y). The results of the t-test stated that t-value > t-table (2.274 > 2.051) it means that brand awareness (X1) had effect and significant toward repurchase interest (Y). The results of the t-test state that t-value > t-table (11,494 > 2.051) it means that the subjective norm (X2) had effect and significant toward repurchase interest (Y). The results of the f-test was f-value > f-table (71.072 > 3.340) it means that brand awareness (X1) and subjective norms (X2) had effect and significant toward repurchase interest (Y). The results of the R2 test was of 0.840, it means that brand awareness (X1) and subjective norms (X2) had effect of 84%, the remaining of 16% was affected by other variables.
Estrategias para la Transformación Digital de un Centro Educativo: una revisión sistemática
Authors: Garcia Grau Francesc , Valls Bautista Cristina , Lázaro Cantabrana José Luis
Published: December 2022

The use of digital technology favors the development of the teaching and learning process of the student and the transfer of information to the entire educational community. This study aims to identify the actions and mechanisms that an educational institution must take into account in its digital transformation through the use of digital technology. This research is approached as a systematic review based on the PRISMA 2020 model, between January 2011 and February 2021. In the study, after applying the different inclusion criteria in 69 references, the analysis of 13 publications is carried out. Through the ATLAS.ti software. 9.1.3 (2089), a content study is carried out based on the established codes. The main result of this sistematic review indicates that an educational institution must know the degree of digital maturity of all its components (students, teachers and center) and the state of its infrastructure. This knowledge is necessary in the implementation of strategic plans to improve the use of digital technology, both at a methodological and instrumental level, and thus facilitate digital transformation at the level of infrastructure, digital competence of teachers and digital competence of students through didactic methodologies that facilitate it together with digital inclusion.

El uso de la tecnología digital favorece el desarrollo del proceso de enseñanza-aprendizaje del alumno y la transferencia de información a toda la comunidad educativa. El presente estudio pretende identificar las acciones y los mecanismos que debe tener en cuenta una institución educativa en su transformación digital a través del uso de la tecnología digital. Esta investigación se aborda como una revisión sistemática basada en el modelo PRISMA 2020, entre enero de 2011 y febrero de 2021. En el estudio, después de aplicar los distintos criterios de inclusión en 69 referencias, se realiza el análisis de 13 publicaciones. A través del software ATLAS.ti. 9.1.3 (2089), se realiza un estudio de contenido a partir de los códigos establecidos. El principal resultado de esta revisión sistemática indica que una institución educativa debe conocer el grado de madurez digital de todos sus componentes (alumnos, docentes y centro) y el estado de su infraestructura. Este conocimiento resulta necesario en la implementación de planes estratégicos para mejorar el uso de la tecnología digital, tanto a nivel metodológico como instrumental, y así facilitar la transformación digital a nivel de infraestructuras, de competencia digital del profesorado y de competencia digital del alumnado a través de metodologías didácticas que la faciliten junto a la inclusión digital.