bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the mill feeding system of an elastic variable universe fuzzy control based on particle swarm optimization algorithm
Authors: Tian Niu , Huang Song wei , He Li fang , Du Ling pan , Yang She ping , Huang Bin
Published: July 2023

The grinding process in the concentrator is a part of the largest energy consumption, but also the most likely to cause a waste of resources, so the optimization of the grinding process is a very important link. The traditional fuzzy controller relies solely on the expert knowledge summary to construct control rules, which can cause significant steady-state errors in the model. In order to solve the above problem, this paper proposes an elastic variable universe fuzzy control based on Particle Swarm Optimization (PSO) algorithm. The elastic universe fuzzy control model does not need precise fuzzy rules, but only needs to input the general trend of the rules, and the division of the universe is performed by the contraction-expansion factor. The control performance is directly related to the contraction-expansion factor, so this article also proposes using particle swarm optimization to optimize the scaling factor to achieve the optimal value. Finally, simulation models of traditional fuzzy control and elastic universe fuzzy control of feeding system of mill were built using Python to verify the control effect. Its simulation results show that the time of the reaction of the fuzzy control system in the elastic variable theory universe based on particle swarm optimization was shorter by 34.48% comparing to the traditional one. Elastic variable universe fuzzy control based on particle swarm optimization (PSO) effectively improved the control accuracy of the mill feeding system and improved the response speed of the system to a certain extent.
Analisis Efisiensi Teknis Produksi Dan Pendapatan Usahatani Jagung
Authors: Chandra Adhi , Abidin Zainal , Ashari Ulfira
Published: July 2023

Penelitian ini bertujuan untuk : (1) menganalisis penggunaan faktor-faktor produksi, (2) menganalisis tingkat efisiensi dan inefisiensi teknis, dan (3) menganalisis besarnya pendapatan usahatani jagung di Desa Puncak Kecamatan Pulubala. Pengambilan sampel dilakukan dengan metode random sampling terhadap 100 petani jagung. Metode analisis faktor-faktor yang mempengaruhi produksi jagung, tingkat efisiensi teknis dan inefisiensi teknis menggunakan model fungsi produksi stochastic frontier dengan metode Maximum Likelihood Estimation (MLE). Hasil penelitian menunjukkan bahwa faktor-faktor yang mempengaruhi produksi jagung di Desa Puncak Kecamatan Pulubala Kabupaten Gorontalo adalah variabel tenaga kerja, benih, dan pestisida. Usahatani jagung di Desa Puncak Kecamatan Pulubala Kabupaten Gorontalo sudah efisien secara teknis, dengan rata-rata nilai efisiensi teknis sebesar 0,98%. Hal ini mengindikasikan bahwa petani jagung di Desa Puncak Kecamatan Pulubala Kabupaten Gorontalo sudah secara optimal dalam mengalokasikan penggunaan input pada tingkat biaya yang minimum. Faktor sosial ekonomi yang berpengaruh terhadap inefisiensi teknis adalah umur petani, ukuran rumah tangga, dan kelompok tani. Hasil penelitian menunjukkan bahwa penerimaan rata-rata petani responden sebesar Rp 38.486.710,-. Dengan biaya usahatani rata-rata sebesar Rp 20.637.055,-. Rata-rata pendapatan yang diperoleh petani Rp 17.849.655,-, sedangkan rata-rata pendapatan perhektarnya sebesar R P 7.846.002,-.
Analysis of Medical Records Unit Employee Workload During the COVID-19 Pandemic at Mitra Masyarakat Hospital, Mimika, Indonesia
Authors: Raru Amida Morina , Siswati  , Deasy Rosmala Dewi  , Nanda Aula Rumana
Published: July 2023

The workload of medical record unit staff at a hospital can vary depending on the size and type of hospital, the number of patients, and the internal policies implemented. Medical record unit employees are responsible for collecting, managing, and storing patient medical records. During the COVID-19 pandemic, the workload of employees in the medical records unit greatly increased because there was a surge in patients due to the pandemic. An increase in the number of patients occurred in all hospitals in Indonesia, including Mitra Masyarakat Hospital, Mimika. This study aimed to describe the workload profile of employees in the medical records unit at Mitra Masyarakat Hospital during the COVID-19 pandemic. This research is descriptive observational research. The location of this research is Mitra Masyarakat Hospital, Mimika, Indonesia. The research was conducted from March to August 2021. Data sources were obtained from interviewing informants, observing and measuring workload in the medical record unit before and during the pandemic. The variables measured in this study were available working time, workload standards, supporting task standards, and supporting task factors, as well as the need for human resources in the Mitra Masyarakat Hospital work unit. The results of the study show that the available working time for medical record unit personnel for each section is 1300 hours/year or 78,000 minutes/year. The need for health human resources for the medical record unit is as many as 20 people. There are 9 medical record officers currently owned by RSMM. Thus it can be concluded the number of employees is less when compared to the workload in the medical record unit at Mitra Masyarakat Hospital.
Analisis Sentimen dengan Metode Klasifikasi Naïve Bayes dan Seleksi Fitur Chi-Square
Authors: Harungguan Albert Raja , Napitupulu Herlina , Firdaniza Firdaniza
Published: July 2023

Analisis sentimen merupakan metode komputasi untuk mengevaluasi teks dengan tujuan menentukan emosi yang terkandung di dalamnya. Analisis sentimen dapat dilakukan dengan pendekatan pembelajaran mesin. Salah satu metode pembelajaran mesin yang sering digunakan untuk analisis sentimen adalah Klasifikasi Naïve Bayes, yaitu metode yang menggunakan teorema Bayes sebagai dasar untuk melakukan klasifikasi. Penggunaan Klasifikasi Naïve Bayes juga dapat dikombinasikan dengan seleksi fitur. Studi sebelumnya menunjukkan bahwa seleksi fitur Chi-Square merupakan satu metode seleksi fitur yang efektif, yang mana merupakan proses untuk memilih kata yang paling merepresentasikan data berdasarkan nilai Chi-Square untuk mempercepat proses komputasi. Penelitian ini bertujuan untuk memperoleh model Klasifikasi Naïve Bayes dari data teks yang telah melalui tahap seleksi fitur Chi-Square.
A Reconnoitre Perception of the Muslim Community in Banten Regarding Halal Vaccines After the Covid-19 Pandemic
Authors: Ishom Muhammad
Published: July 2023

Abstrak

Terjadi banyak perubahan masyarakat Muslim Banten dalam menyikapi vaksinasi Covid-19, antara sebelum dan sesudah pandemi. Di masa pandemi banyak di antara mereka yang menolak vaksinasi dengan bermacam-macam alasan, diantaranya segi kehalalan vaksin. Akan tetapi setelah berakhirnya masa pandemi penolakan vaksinasi tidak terdengar lagi, khususnya dalam konteks vaksinasi sebagai prasyarat perjalanan haji dan umrah. Studi ini menyoroti persepsi masyarakat Muslim Banten tentang vaksin halal pasca pandemi Covid-19 dengan menggunakan data observasi dan wawancara calon jemaah haji dan umrah. Pemilihan data ini dengan alasan prasyarat sertifikat vaksin yang harus dimiliki mereka sebelum melakukan perjalanan ke tanah suci. Rumusan masalahnya ialah: Apa yang menyebabkan pudarnya sikap resistensi masyarakat muslim Banten terhadap vaksinasi Covid-19 yang belum semua mendapatkan sertifikasi halal? Bagaimana sikap mereka mengenai penyuntikan Dosis 2 sampai Booster vaksin Covid-19 yang belum memenuhi fatwa MUI? Dengan pendekatan analisis-deskriptif studi ini menyimpulkan bahwa pudarnya sikap resistensi masyarakat muslim Banten terhadap vaksinasi Covid-19 berhubungan dengan kebutuhan mereka dan opini ulama Banten yang membolehkan vaksinasi dengan alasan rukhsah-darurat.

 

Kata Kunci:

Ulama Banten, Haji, Umrah, Vaksin Halal, Covid-19
LATIHAN FIRST TOUCH TERHADAP KETERAMPILAN DASAR SEPAK BOLA
Authors: Rifan Ahmad , Permadi Asep Angga , Arifin Z.
Published: July 2023

Sepak bola merupakan media untuk mengembangkan prestasi, diadakannya Sekolah Sepak Bola atau SSB bertujuan untuk meningkatkan kualitas anak dari mulai usia dini. Latihan dasar dalam Sepak bola adalah proses melatih atau meningkatkan kemampuan teknik dasar dalam Sepak bola. Tujuan dari pengidentifikasian pengaruh first touch terhadap keterampilan bermain untuk meningkatkan efektifitas penggunaan sentuhan pertama. Sentuhan pertama tesebut adalah sentuhan yang menentukan arah bola pada saat membangun serangan, mengatur tempo, megecoh lawan dan mengendalikan ritme permainan. Tujuan dari penelitian ini adalah untuk mengetahui bagaimana pengaruh program latihan first touch terhadap teknik dasar sentuhan pertama dan mengetahui bagaimana pengaruh program latihan first touch terhadap keterampilan bermain pemain pada saat bertanding. Metode yang digunakan dalam penelitian ini menggunakan kuantitatif (eksperimen), menggunakan pre-eksperimen dengan one grup pretes-postes sebagai bentuk dari desain penelitiannya. Hasil pembahasan dapat disimpulkan bahwa latihan first touch terhadap ketarampilan bermain Sepak bola memberikan dampak yang baik atau meningkat sehingga perlu menjadi sebuah rekomendasi atau sebuah gambaran yang bisa digunakan bagi para guru, pelatih, pembina ekstrakurikuler di sekolah untuk bisa di jadikan acuan bahwasannya penelitian yang memberikan dampak yang sangat baik. Program lathan ini cocok untuk meningkatkan teknik sentuhan pertama para pemain kelompok usia 10-13 tahun.
ANALISIS TINGKAT KEBUGARAN JASMANI PESERTA DIDIK EKSTRAKURIKULER BULU TANGKIS MADRASAH IBTIDAIYAH
Authors: Rusdiyanto Moch Rio , Arief Nur Ahmad
Published: July 2023

Kebugaran jasmani merupakan faktor yang mempengaruhi kualitas hidup seseorang, tidak terkecuali siswa Madrasah Ibtidaiyah. Tujuan penelitian untuk mengetahui tingkat kebugaran jasmani peserta didik ekstrakurikuler Bulu tangkis di Madrasah Ibtidaiyah (MI) Progresif Bumi Shalawat Sidoarjo. Metode penelitian mengunakan analisis deskriptif kuantitatif. Penelitian ini memiliki populasi 64 peserta didik, sehingga menggunakan teknik sampel purposive sampling dengan kriteria siswa yang aktif di ekstrakurikuler Bulu tangkis 28 orang siswa. Prosedur pengambilan data dilaksanakan dengan cara peneliti langsung dengan melakukan pengukuran dengan instrument PACER-test 20 m. Analisa data yang digunakan deskriptif dengan mean, dan persentase. Hasil penelitian menunjukkan bahwa tingkat kebugaran peserta didik ekstrakurikuler Bulu tangkis 8 orang kategori cukup 29%, kategori rendah 13 orang 46%, kategori sangat rendah 7 orang 25%. Sehinga untuk nilai rata-rata laki-laki usia 10 dan 11 tahun berada dikategori rendah dengan mean (x̄ 27 lap dan x̄ 26 lap), berbeda pada usia 12 tahun dengan mengalami penurunan dikategori sangat rendah (x̄ 23 lap). Sedangkan pada jenis kelamin perempuan usia 10 tahun berada di kategori rendah (x̄ 17 lap). Sehingga persentase dapat disimpulkan bahwa tingkat kebugaran peserta didik ekstrakurikuler Bulu tangkis MI Progresif Bumi Shalawat dominan pada kategori rendah.
PENINGKATAN KETEPATAN SHOOTING SEPAK BOLA MENGGUNAKAN LATIHAN SQUAT JUMP
Authors: Basri Muhammad Rizki Al , Anwar Khoirul , Handayani Heni Yuli , Himawan Agus
Published: July 2023

Latihan squat jump merupakan salah satu bentuk latihan yang bisa digunakan untuk menungkatkan ketepatan shooting Sepak bola. Penelitian ini dilakukan dengan tujuan untuk mengevaluasi dampak latihan Squat Jump terhadap tingkat keberhasilan dalam melakukan tembakan ke gawang dalam permainan Sepak bola. Subjek penelitian terdiri dari 20 pemain U 12-15 Sekolah Sepak bola (SSB) Mitra Bangkalan. Penelitian ini menggunakan metode eksperimental dengan desain penelitian one group pretest-posttest design, dan teknik pengambilan sampel yang digunakan adalah total sampling. Instrumen yang digunakan berupa tes akurasi shooting ke gawang. Analisis data menggunakan SPSS yaitu uji Wilcoxon Signed Ranks Test.  Hasil analisis menunjukkan bahwa nilai p sig sebesar 0,000 0,05, mata terdapat pengaruh signifikan latihan squat jump terhadap ketepatan tembakan ke gawang. Berdasarkan temuan ini, dapat disimpulkan bahwa latihan squat jump berpengaruh terhadap akurasi dalam melakukan tembakan dalam permainan Sepak bola, khususnya pada pemain U 12-15 SSB Mitra Bangkalan. Direkomendasikan pada penelitian lanjutan dengan menggunakan kelompok control sehingga bisa mengetahui pengaruhnya dengan dibandingan kelompok kontrol, bagi pelatih yaitu bisa menerapkan latihan squat jump bagi pemain Sepak bola U 12-15.
Geomorphological and Sedimentological Indicators of Contemporary Erosion Processes: An Example of the Eastern Rhodopes Mountains (Bulgaria)
Authors: Nikolova Valentina , Rizova Radostina , Gospodinova Veselina , Kamburov Asparuh
Published: July 2023

Erosion processes, triggered by water, occur and propagate on sloping surfaces and have a significant negative impact on the soil quality and vegetation, as well as cause a change of the topographic surface. In the long term, they can lead to an increase in sediment transport, siltation of dams, and higher flood hazard. The development of water erosion reflects on the slope profile and the specific landforms like rills and gullies. In this regard, the geomorphological features of the areas can be considered indicators of the spatial distribution of erosion and accumulation. The sediment properties give information about the conditions of the transport and the intensity of the hydrogeomorphic processes. The current study aims to analyse the short-term changes in erosion and deposition by application of morphometry and grain size analysis. Topographic wetness index (TWI) and cross-section profiles of two small gullies were analysed based on high-resolution digital terrain models (DTMs), generated from unmanned aerial system (UAS) data. Remote sensing was combined with field geomorphological research and sediment sampling. The results of the research show about average 2 cm change in erosion and deposition for the period October 2021 – November 2022. Despite TWI and cross-section profiles depending on the DTMs resolution, they are reliable indicators for erosion and deposition. The grain size analysis supports the morphometric analysis. Coarse to very fine sands are predominant in most cases of sediment sampling. The sorting coefficient shows very poorly to moderately sorted deposits which indicates transport in a more dynamic environment and temporary flow.
PENGARUH PERCEIVED OF BENEFIT DAN E-TRUST TERHADAP MINAT MENGGUNAKAN QRIS
Authors: Devica Sadana , Widodo Mentari Septynaputri
Published: July 2023

This study aims to examine whether there is an influence between perceived benefits and e-trust on the intention to use QRIS. The data collection technique in this study was by using non-probability sampling with the method of determining the sample, namely judgment sampling or purposive sampling techniques. The number of respondents in this research are 155 respondents. Furthermore, the collected data has been tested for construct validity and reliability and processed using SEM (Structural Equation Modeling) analysis. To test the construct validity of exogenous variables, researchers use the value of the loading factor. As for the reliability test, the researcher used the Cronbach Alpha value. Researchers have also conducted a model fit test to ensure that the research model used is included in the very good category (fit). The results of this study indicate that perceived benefit and e-trust have a positive and significant effect on interest in using QRIS. The results of this study also show that the millennial generation can accept new innovations created by digital payment applications.
CRIMINAL SENTENCING ON MINORS
Authors: Владимиров С.В. , Малышева В.Е.
Published: July 2023

Статья посвящена изучению норм уголовного законодательства России, материалов судебной практики, регламентирующих назначение уголовных наказаний, а также мер воспитательного характера в отношении несовершеннолетних. Рассмотрена статистика применения различных видов наказаний, назначаемых несовершеннолетним, последних лет, на основании чего сделаны выводы о существенном изменении уголовной политики в отношении лиц, совершивших преступление в возрасте от четырнадцати до семнадцати лет. Отмечено, что личность детей и подростков находится на стадии формирования, они легче поддаются негативному влиянию со стороны взрослых, а желание самоутвердиться толкает их на совершение преступлений, поэтому наказания за совершенные преступления должны носить гуманный характер и быть направлены на перевоспитание личности. На основании правоприменительной практики сделан вывод, что наиболее эффективным видом наказания, назначаемого несовершеннолетним, является ограничение свободы, наименее эффективным – штраф. Что касается мер воспитательного воздействия на несовершеннолетних, то наиболее урегулированными являются предупреждение и обязанность по заглаживанию нанесенного вреда. Авторами изучены и обоснованы недостатки остальных мер, которые сказываются на их эффективности.

The article is devoted to the study of the norms of the criminal legislation of Russia, materials of judicial practice regulating the appointment of criminal penalties, as well as educational measures against minors. The statistics of the last years of the application of various types of punishments imposed on minors are considered, on the basis of which conclusions are drawn about a significant change in criminal policy in relation to persons who have committed a crime between the ages of fourteen and seventeen. It is noted that the personality of children and adolescents is at the stage of formation, they are easier to be negatively influenced by adults, and the desire to assert themselves pushes them to commit crimes, therefore, punishments for crimes committed should be humane and aimed at re-education of the individual. Based on law enforcement practice, it is concluded that the most effective type of punishment imposed on minors is restriction of freedom, the least effective is a fine. As for the measures of educational influence on minors, the most regulated are the prevention and the obligation to make amends for the harm done, while the remaining measures have a number of shortcomings that affect their effectiveness. These shortcomings are stated in the work and justified.
Hochspezifische konstruktive Schutzkonzepte für die Wasserstoffinfrastruktur
Authors: Rasche David
Published: July 2023

Im Kontext der angestrebten Dekarbonisierung kommt dem Wasserstoff ein immer höherer Stellenwert als Energieträger (thermische Verwertung) und Ausgangsstoff der chemischen Produktionslinien (molekulare Verwertung) zu. Dabei ist der Plan der Anlagenbetreiber, wie auch der der Hersteller von spezifischen Teilkomponenten, häufig zuerst Methan-Wasserstoffgemische zu verwenden und anschließend den Wasserstoffanteil kontinuierlich zu steigern. Langfristiges Ziel ist es, Methan vollständig durch Wasserstoff zu substituieren. Häufig außer Acht gelassen wird jedoch, dass die für den ursprünglichen Methanbetrieb geeigneten Schutzkonzepte und Technologien nur bedingt oder nicht geeignet sind, um Anlagen, Einzelkomponenten und Infrastruktur beim Betrieb mit hohen Wasserstoffkonzentrationen zu schützen.
Simulationsgestützte Risikoanalyse zur Bewertung eines Wasserstoffmotorenprüfstandes für das Sicherheitskonzept
Authors: Wachter Laura
Published: July 2023

Aufgrund des fortschreitenden Klimawandels und der daraus abgeleiteten reduzierten Verwendung fossiler Brennstoffe wird Wasserstoff zu einem wichtigen Energieträger. Vor allem im Schwerlastverkehr und bei einigen nicht straßengebundenen Verkehrsformen wird die mit grünem Wasserstoff betriebene Brennstoffzelle oder auch der Wasserstoffmotor zunehmend als Alternative zu mit Diesel betriebenen Verbrennungsmotoren gesehen. Aktuell gibt es hierfür kaum Prüfinfrastruktur, die den Bedarf an Testkapazitäten für solche Wasserstoffantriebe abdecken kann. Diese aufzubauen, ist u. a. ein Ziel des im Rahmen des BWPLUS – Baden-Württemberg Programms „Lebensgrundlage Umwelt und ihre Sicherung“ geförderten Projekts „H2TwinTest“(FKZ BWZPH2 22124). Im vorliegenden Artikel wird der Fokus auf das entwickelte Sicherheitskonzept für Multifunktionsprüfstände für Wasserstoffantriebe gesetzt.
Biometrie schafft Sicherheit
Authors: Rupprecht Reinhard
Published: July 2023

Biometrie bietet ein breites Anwendungsspektrum für eine Erhöhung der öffentlichen wie der privaten Sicherheit, für behördliche Erkennungsdienste wie für die Unternehmenssicherheit.
Die Entwicklung des mathematischen Denkens in der frühen Kindheit
Authors: Libertus Melissa E.
Published: July 2023

Von Geburt an zeigen Kinder ein grundlegendes Verständnis für eine überraschend breite Palette numerischer Konzepte. In diesem Beitrag gebe ich einen Überblick über die aktuelle Literatur zur Darstellung kleiner und großer Zahlen bei Säuglingen und Kleinkindern und darüber, wie dieses Verständnis ihre rudimentäre Auffassungsgabe arithmetischer Operationen wie Addition und Subtraktion unterstützt. Darüber hinaus haben Längsschnitt- und Trainingsstudien gezeigt, dass insbesondere Darstellungen und Operationen mit großen, ungefähren Mengen mit den mathematischen Fähigkeiten der Kinder zusammenhängen. Abschließend gehe ich auf die Entwicklung des kindlichen Erwerbs der Bedeutung von Zahlwörtern ein und zeige auf, wie sich dieser Prozess im Kontext verschiedener Sprachen unterscheiden kann.
Effektives mathematisches Denken – eine Annäherung mithilfe von Wettbewerbsaufgaben
Authors: Donner Lukas
Published: July 2023

Effektives mathematisches Denken zeigt sich beim Lösen mathematischer Probleme im bewussten Einsatz heuristischer Strategien sowie in der Nutzung typischer effektivitätssteigernder Methoden der Mathematik wie beispielsweise der sogenannten Baustein-Idee. Eine Förderung dieser Facette des Denkens gelingt insbesondere dann, wenn nicht bei der individuellen Lösung einer bestimmten Aufgabe die Auseinandersetzung als abgeschlossen betrachtet wird, sondern die Lösung als Ausgangspunkt für weiterführende mathematische Untersuchungen dient. Exemplarisch sollen diese Gedanken anhand ausgewählter Wettbewerbsaufgaben dargestellt werden.
Mathematisches Denken – die „vergessene“ Kompetenz? Ein neuer Versuch, damit praktisch umzugehen
Authors: Schreck Anna , Scheja Bruno , Rott Benjami
Published: July 2023

Mathematisches Denken ist eine wichtige Fähigkeit, sei es in der Ausbildung, im Beruf oder im alltäglichen Leben. Insofern ist bemerkenswert, dass mathematisches Denken in den deutschen Kernlehrplänen als wesentliche mathematische Teilkompetenz keine explizite Berücksichtigung findet. Da es damit keinen allgemeinen, praktischen Unterrichtsstandard bezüglich der Vermittlung von mathematischem Denken gibt, versucht dieser Artikel einige Schulaufgaben vorzustellen, die im Unterricht mathematisches Denken fördern und anregen können. Dazu werden zunächst die einzelnen Aspekte und Methoden mathematischen Denkens dargelegt.
Besonderheiten der Entwicklung des mathematischen Denkens in der Ausbildung von Mathematiklehrerinnen und -lehrern für die Jahrgangstufen 5-8 und 9-12
Authors: Pálfalvi Józsefné , Ambrus Gabriella
Published: July 2023

Eine wichtige Aufgabe des schulischen Mathematikunterrichts ist die Entwicklung des mathematischen Denkens. Dafür sind unterschiedliche Möglichkeiten für Schülerinnen und Schüler unterschiedlichen Alters vorzusehen. Dies ist beispielsweise bei den Altersgruppen der Ober- und Sekundarstufe der Fall. Die Berücksichtigung von Altersunterschieden und -verhältnissen im Mathematikunterricht sollte sich auch in der Ausgestaltung der Struktur der Ausbildung angehender Lehrkräfte niederschlagen.
Развитие модели дискретной фазы для расчёта ультразвуковой коагуляции взвешенных частиц в эккартовских течениях
Authors: Шалунов Андрей , Голых Роман , Хмелёв Владимир , Нестеров Виктор , Боченков Александр
Published: July 2023

Одним из наиболее эффективных способов улавливания аэрозольных частиц является предварительное объединение частиц в агломераты под действием синусоидальных ультразвуковых (УЗ) колебаний высокой интенсивности (ультразвуковая агломерация) для дальнейшего улавливания укрупненных частиц традиционными методами (инерционное или гравитационное осаждение, фильтрация сквозь пористый материал и т. д.). На сегодняшний день эффективность УЗ агломерации многократно доказана для частиц размером более 2.5 мкм. Однако ультразвуковая агломерация, основанная на известных механизмах взаимодействия частиц, оказывается мало эффективной при воздействии на частицы размером менее 2.5 мкм и особенно менее 1 мкм. При этом возможности линейного акустического поля на сегодняшний день хорошо изучены, и установлено, что воздействие линейным акустическим полем не обеспечивает эффективной коагуляции частиц PM2.5. А при повышении уровня звукового давления линейного акустического поля укрупненные частицы (особенно, если речь идёт о твёрдых частицах) начинают разрушаться. Поэтому авторами предложено задействовать нелинейные эффекты, которые заключаются в формировании вихревых акустических (эккартовских) течений, способных вызвать локальное повышение концентрации частиц и, следовательно, увеличение эффективности коагуляции. Установлено, что формирование вихревых акустических потов в резонансном промежутке способно дополнительно увеличить эффективность ультразвуковой коагуляции не менее чем в 1.5 раза.
Совершенствование насадочных контактных устройств массообменных аппаратов
Authors: Беренгартен Михаил , Пушнов Александр
Published: July 2023

В последние десятилетия существенно увеличилось число исследований, касающихся новых насадочных контактных устройств для массообменных и тепломассообменных аппаратов. Авторами проанализированы достоинства и недостатки различных нерегулярных и регулярных типов насадочных контактных устройств. Описаны основные направления исследований, позволяющие повысить энерго- и рессурсоэффективность таких процессов путем совершенствования контактных устройств технологическими и конструктивными методами. Рассмотрены регулярные геликоидно-структурные насадки с изменяемой геометрией укладки. Проанализировано влияние высоты слоя и перфорации таких насадок на гидравлическое сопротивление и массообменные характеристики. Особое внимание уделено комбинированным контактным устройствам. Изучены комбинированные контактные устройства в виде вертикально установленных блоков из гофрированных листов с проставками из горизонтально уложенных винтовых элементов. Проведено сопоставление тепломассообменной эффективности таких комбинированных насадок со стандартными структурированными насадками. Намечены пути совершенствования насадочных контактных устройств.
Coagulopathy and thrombosis following COVID-19 resolution resulting in late Hyperacute ischemic stroke in moyamoya disease – A case report
Authors:   Department of Neurology and Interventional Pain Medicine, National Hospital, Surabaya, Indonesia, Soejitno Andreas ,   Department of Neurology, Faculty of Medicine, Ciputra University, Surabaya, Indonesia, Wulandari Putu Ayu Dyah Meita ,   Emergency Department, National Hospital, Surabaya, Indonesia
Published: July 2023

Background. Moyamoya disease (MMD) patients who untreated with bypass surgery are prone to frequent and recurrent ischemic stroke or transient ischemic attack (TIA). Although, multiple traditional risk factors can account for this event, recent COVID-19 pandemic also contributed to the increased rate of stroke recurrence among this population by means of multiple pathogenesis, including thrombosis. Case presentation. Herein we described an MMD patient who suffered from acute ischemic stroke lately after the resolution of COVID-19 infection with neurocognitive deficits as the prominent symptoms. Coagulopathy with the resulting thrombosis was thought to play a central role in this case. Conclusions. COVID-19 infection may increase the risk of stroke recurrence among patients with MMD, particularly those who do not yet undergo surgical bypass procedure. Coagulopathy with thrombosis was thought to play a central role, even after the infection itself had subsided.
An Improved Coupled Dynamic Modeling for Exploring Gearbox Vibrations Considering Local Defects
Authors: Han Yaoyao , Chen Xiaohui , Xiao Jiawei , Gu James Xi , Xu Minmin
Published: July 2023

Gearbox is a key part in machinery, in which gear, shaft and bearing operate together to transmit motion and power. The wide usage and high failure rate of gearbox make it attract much attention on its health monitoring and fault diagnosis. Dynamic modeling can study the mechanism under different faults and provide theoretical foundation for fault detection. However, current commonly used gear dynamic model usually neglects the influence of bearing and shaft, resulting in incomplete understanding on gearbox fault diagnosis especially under the effect of local defects on gear and shaft. To address this problem, an improved gear-shaft-bearing-housing dynamic model is proposed to reveal the vibration mechanism and responses considering shaft whirling and gear local defects. Firstly, an eighteen degree-of-freedom gearbox dynamic model is proposed, taking into account the interaction among gear, bearing and shaft. Secondly, the dynamic model is iteratively solved. Then, vibration responses are expounded and analyzed considering gear spalling and shaft crack. Numerical results show that the gear mesh frequency and its harmonics have higher amplitude through the spectrum. Vibration RMS and the shaft rotating frequency increase with the spalling size and shaft crack angle in general. An experiment is designed to verify the rationality of the proposed gearbox model. Lastly, comprehensive analysis under different spalling size and shaft crack angle are analyzed. Results show that when spalling size and crack angle is lager, RMS and the amplitude of shaft rotating frequency will not increase linearly. The dynamic model can accurately simulate the vibration of gear transmission system, which is helpful to gearbox fault diagnosis.
ÇOK BOYUTLU YOKSULLUK ÇALIŞMALARININ BİR SİVİL TOPLUM KURULUŞU ÖZELİNDE DEĞERLENDİRİLMESİ: AKSARAY İLİ İNSAN HAK VE HÜRRİYETLERİ İNSANİ YARDIM DERNEĞİ ÖRNEĞİ
Authors: GÜNEŞ Nevin , YENİHAN Doç. Dr. Bora
Published: July 2023

Tüm dünyada geçmişten günümüze kadar büyük bir sosyal sorun olarak devam etmekte olan yoksulluğu anlamak ve çözüme kavuşturabilmek yalnızca ekonomik yaklaşımlar ile mümkün olmamaktadır. Yapılan birçok araştırma gelir boyutunda yoksul olmasa dahi çok boyutlu yoksulluk yaşayan ülkeler olduğunu ortaya koymaktadır. Yoksulluğun yaşam kalitesi ve refahı etkileyen sağlık, eğitim, konut, yaşam ve çevre koşulları gibi boyutlarını dikkate almak, yoksulluğu her yönüyle anlayabilmek ve çözüme kavuşturabilmek için önemlidir. Kamu ve özel kurumlar, sivil toplum kuruluşları ise yoksulluğu önlemek, ortadan kaldırabilmek için çeşitli faaliyetler yürütmektedir. Bu çalışmada yoksulluk alanında çalışmalar yürütmekte olan sivil toplum kuruluşu İnsan Hak ve Hürriyetleri İnsani Yardım Vakfı (İHH)’nın faydalanıcılarının çok boyutlu yoksulluk içinde olup olmadıkları ve İHH’nın Aksaray ilinde yapmış olduğu yoksulluk çalışmalarının çok boyutlu olup olmadığı anlaşılarak çok boyutlu yaklaşımın yoksulluğu anlamada ve çözümlemedeki önemini ortaya koymak amaçlanmaktadır. Bu çalışma, betimleyici/keşfedici nitel bir araştırmadır. Çalışmada, İHH çalışanlarına ve İHH yararlanıcılarına çok boyutlu yoksulluk durumlarının anlaşılabilmesi için OPHI ve UNDP’nin ortak geliştirmiş oldukları ve hesaplanmasında Alkire-Foster (AF) yönteminin kullanıldığı “Çok Boyutlu Yoksulluk Endeksi” verileri temelinde yarı yapılandırılmış soru formu uygulanmıştır. Çalışmanın sonucunda ise İHH yararlanıcılarının 1’i hariç hepsinin çok boyutlu yoksulluk içinde oldukları, İHH’nın çok boyutlu yoksulluk farkındalığının ve yaklaşımının yetersiz kaldığı ortaya koyulmaktadır.
IMPLEMENTING LITERACY PROGRAM TO OVERCOME MADRASAH ALIYAH STUDENTS’ DIFFICULTIES IN MINIMUM COMPETENCY ASSESSMENT
Authors: Kharami Sevty Sheyla , Faoziyah Rizki Nur , Dani Umar
Published: July 2023

This study seeks to describe the literacy curriculum in MAN 1 Bogor as a solution dealing with the Minimum Competency Assessment (AKM). AKM is one of the primary instruments of the National Assessment that serves as a replacement for the National Examination and provides data for mapping and evaluating the education system.  AKM is administered to pupils at all levels of education, including grade 4 elementary school, grade 8 junior high school, and grade 11 high school / vocational school with varying levels and question counts.  The results of AKM can depict the actual state of students' mastery of reading and numeracy literacy skills.  This form of research is qualitative and descriptive. The participants are pupils enrolled in AKM MAN 1 Bogor, West Java, for the 2021/2022 academic year.  Interviews and questionnaires were used to collect information for this study. 81% of the respondents at MAN 1 Bogor demonstrated the need for an adult literacy program. Three students with varying levels of ability were also interviewed to strengthen the research findings
INFORMATION INFRASTRUCTURE OF THE DIGITAL ECONOMY AND SUSTAINABLE NEO-INDUSTRIAL DEVELOPMENT
Authors: Krasota T. G. , Zhironkin S. A. , Gasanov M. A. , Gasanov E. A , Gasanova N. V.
Published: July 2023

The regularity and inevitability of digital transformation objectively follows from the dialectical relationship between the function and structure of the economy. It is expressed in the fact that a change in function as a way of behavior of an economic system inevitably entails a change in its structure. The way of existence of the economic system, the way of connections of its elements and parts is radically updated. Active interaction of industries ensures sustainable neo-industrial development. This interaction is supported by the national information infrastructure. The development of the digital economy also requires appropriate institutional transformations, the main of which is the formation of a national information infrastructure. It should create qualitative conditions for digital transformation based on the use of digital technologies, platforms for the generation, dissemination and safe use of information in the context of neo-industrial development of the economy.
IMPORT, COMING-IN AND RELEASE FOR DOMESTIC CONSUMPTION:
PROBLEMS OF DIFFERENTIATION OF CATEGORIES
Authors: Ratnikova V. I. , Strelnikova M. I. , Strelnikov I. A.
Published: July 2023

The article deals with topical problems of terminological confusion in the application of the customs procedure for release for domestic consumption. Different categories are analyzed, synonymous with the import of goods, in particular medicines.
HENTAIGANA AS AN INTEGRATIVE COMPONENT OF THE MODULE
"HIEROGLYPHICS" IN THE TRAINING OF ORIENTAL SPECIALISTS
AND ORIENTAL TEACHERS
Authors: Strelnikov I. A. , Strelnikova N. V. , Ratnikova V. I.
Published: July 2023

The article explores the historical retrospective of the origin of the original characters of the Japanese alphabet Hentaigana, as a basic level of teaching the signs of Japanese writing to Orientalists and Orientalist teachers. An assessment is given of frequently occurring Hentaigana characters, ways of classifying them and options for using them in modern Japanese in records of cultural and historical value. The necessity of an in-depth study of the archaic symbols of Hentaigana within the framework of the subject "Hieroglyphics" is substantiated.
V445 Puppis: Dustier than a Thousand Novae
Authors: Banerjee D. P. K. , Evans A. , Woodward C. E. , Starrfield S. , Su K. Y. L. , Ashok N. M. , Wagner R. M.
Published: July 2023

V445 Puppis, the only known Galactic helium nova, is a unique test bed to verify supernova (SN) theories in the single-degenerate channel that involve a white dwarf (WD) accreting matter from a helium-rich donor. An estimate of the mass of the helium shell on the WD is crucial to deciding whether or not it will undergo an SN detonation. In this context, this study estimates the dust and ejecta masses in the 2000 November eruption of V445 Pup. Subsequent to its outburst, the star became cocooned in a dust envelope. An analysis of the spectral energy distribution (SED) of the dust using infrared data shows that V445 Pup produced at least 10−3
M
⊙ of dust, which is unprecedented for a classical or recurrent nova. The SED can be explained by a combination of a cold dust component at 105 ± 10 K, mass (1.9 ± 0.8) × 10−3
M
⊙, and a warm dust component at 255 ± 10 K, mass (2.2 ± 1.2) × 10−5
M
⊙. For a conservative choice of the gas-to-dust mass ratio in the range 10–100, the mass of the ejecta is 0.01–0.1 M
⊙. Such a high mass range raises the question: why did V445 Pup not detonate as a Type Ia SN as is predicted in certain double-detonation sub-Chandrasekhar supernovae formalisms? We reexamine the nature of V445 Pup and discuss its role as a potential SN progenitor.
Post-flight Evaluation of Lidar-based Digital Terrain Models for OSIRIS-REx Navigation at Bennu
Authors: Leonard Jason M. , Geeraert Jeroen L. , McCarthy Leilah K. , Adam Coralie D. , Antreasian Peter G. , Barnouin Olivier S. , Daly Michael G. , Seabrook Jeffrey A. , Lauretta Dante S.
Published: July 2023

The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) spacecraft spent more than 2 yr characterizing near-Earth asteroid (101955) Bennu. The OSIRIS-REx Laser Altimeter (OLA) was responsible for producing the most accurate reconstruction of the asteroid’s surface—down to a global resolution of around 5 cm with a data precision of ±1.25 cm. However, the best-quality global OLA digital terrain model (DTM), version 21 (v21), was not available for navigation during proximity operations, nor was the utility of this model evaluated for processing images and altimeter data for navigation. The focus of this paper is the post-flight assessment of the final OLA v21 DTM, its performance for navigation-related analysis, and estimates of corrections needed for the DTM and measurement models. We created 15 cm resolution maplets for processing optical navigation (OpNav) data, and 5 cm resolution DTMs for processing altimeter data, to estimate a combined spacecraft trajectory over five phases of the mission. Our estimated corrections to the OLA instrument model produce altimeter data residuals with a precision of 7.12 cm (1σ; one standard deviation from the mean). The OpNav maplets produce image residuals at 0.2 px (1σ) and estimated landmark locations accurate to ±6 cm, outperforming DTM navigation-related performance requirements. Finally, our estimate of the global DTM scale is more precise and within 1.1σ of previously reported values. We find that a slight discrepancy persists between the image and altimeter data, with image data suggesting that the DTM is too small by 0.049%, but nevertheless is exceptional for navigation.
The State of CO and CO2 Ices in the Kuiper Belt as Seen by JWST
Authors: Brown Michael E. , Fraser Wesley C.
Published: July 2023

JWST has shown that CO2 and CO are common on the surfaces of objects in the Kuiper Belt and have apparent surface coverages even higher than that of water ice, though water ice is expected to be significantly more abundant in the bulk composition. Using full Mie scattering theory, we show that the high abundance and the unusual spectral behavior around the 4.26 μm ν
1 band of CO2 can be explained by a surface covered in a few micron thick layer of ∼1–2 μm CO2 particles. CO is unstable at the temperatures in the Kuiper Belt, so the CO must be trapped in some more stable species. While hydrate clathrates or amorphous water ice are often invoked as a trapping mechanism for outer solar system ices, the expected spectral shift of the absorption line for a CO hydrate clathrates or trapping in amorphous ice is not seen, nor does the H2O abundance appear to be high enough to explain the depth of the CO absorption line. Instead, we suggest that the CO is created via irradiation of CO2 and trapped in the CO2 grains during this process. The presence of a thin surface layer of CO2 with embedded CO suggests volatile differentiation driving CO2 from the interior as a major process driving the surface appearance of these mid-sized Kuiper Belt objects, but the mechanisms that control the small grain size and depth of the surface layer remain unclear.
Phylogeny of Diboliina inferred from a morphologically based cladistic analysis (Coleoptera: Chrysomelidae: Galerucinae)
Authors: Nadein Konstantin
Published: July 2023

A cladistic analysis of 14 genera of hemispheric flea beetles based on adult morphological characters is presented. A multiple origin of hemispheric body shape is concluded. The phylogenetic position of the hemispheric genus Argopistes Motschulsky, 1860 is studied and its attribution to the subtribe Diboliina is proposed. A phylogenetic analysis of subtribe Diboliina using cladistic methods and based on morphological characters is carried out. Inferred from the results of this analysis this subtribe retains four genera: Argopistes, Dibolia Latreille, 1829, Megistops Boheman, 1859, and Paradibolia Baly, 1875. A diagnosis of the subtribe Diboliina, a redescription, a key to genera, and an annotated list of genera are given. Trends in morphological transformations in Diboliina and other alticines are discussed.
The adult head of the annulipalpian caddisfly Philopotamus ludificatus McLachlan, 1878 (Philopotamidae), mouthpart homologies, and implications on the ground plan of Trichoptera
Authors: Kubiak Martin , Beckmann Felix , Friedrich Frank
Published: July 2023

Adult head structures of representatives of all major trichopteran lineages were examined by using a combination of well-established morphological techniques as histology, light microscopy, scanning electron microscopy, and micro-computed tomography in combination with computer-based 3D-reconstruction. Internal and external cephalic features of the annulipalpian representative, Philopotamus ludificatus McLachlan, 1878, are described and illustrated in detail. The sclerites of maxilla and labium are often fused and inseparable leading to different homology hypotheses in the literature, concerning for instance the identity of the maxillary endite lobes (galea or lacinia), the composition of the basal maxillary sclerites and the origin of the haustellum. The detailed description of the skeleto-muscular system of Philopotamus allows for a thorough evaluation of these structures and a critical discussion of their identity. Furthermore, character complexes showing the most relevant variability among the major trichopteran lineages are presented. The ground plan conditions of the adult head in Trichoptera and Amphiesmenoptera are reconstructed for several characters. The trichopteran ground plan contains a Π-shaped tentorium with short dorsal arms, moderately sized mandibles equipped with three well-developed muscles, a small but distinct lacinia, five-segmented maxillary palps and a small haustellum. Additionally, the unusual configuration of the extrinsic dilator muscles of the salivarium is regarded as a potential autapomorphy of Trichoptera. Adult head structures observed in the annulipalpian family Philopotamidae show a remarkable number of presumably plesiomorphic features, as moderately developed and sclerotized but functionless mandibles, a small protrusible haustellum without channels on its surface, extrinsic antennal muscles originating exclusively from the tentorium, a small lacinia closely associated with the mainly membranous galea (i.e., galeolacinia), extrinsic dorsal muscles of the salivarium originating fromthe hypopharynx and from the premental sclerite, respectively, and small labial endite lobes.
The morphology of the male and female reproductive system in two species of spider crabs (Decapoda: Brachyura: Majoidea) and the issue of the velum in majoid reproduction
Authors: Kienbaum Katja , Scholtz Gerhard , Becker Carola
Published: July 2023

The reproductive system of spider crabs (Majoidea) has raised considerable interest due to the complexity of female sperm storage organs. In several majoid species, the seminal receptacle has been described as being divided into a dorsal storage chamber and a ventral fertilization chamber separated by a muscular velum. The velum is supposed to control the amount of sperm used for fertilization and to play an important role in sperm competition. Here, we present a study on the reproductive systems of the two majoid species, Mithraculus sculptus (Lamarck, 1818) and Stenorhynchus seticornis (Herbst, 1788) using various morphological techniques such as μCT scans and 3D-reconstructions, complemented by paraffin histology. The male gonopods of the herein investigated species are similar in their general morphology and in the presence and distribution of setae. The tubular first gonopod holding the ejaculatory canal is much longer than the short and stout second gonopod, which is supposed to function as a piston in the transport of sperm into the female ducts. The female reproductive system of M. sculptus and S. seticornis conforms to that of other Eubrachyura in possessing paired ovaries, oviducts, seminal receptacles, vaginae, and vulvae. Based on our 3D-reconstructions we demonstrate that there is no division of the seminal receptacle into two chambers separated by a velum. In contrast to this, we observed a spatially restricted invagination of the seminal receptacle. A comparison of our data with those of previous studies, allows for the conclusion that the invagination of the seminal receptacle may have been misinterpreted and mistaken for a velum by other authors. Thus, the division of the seminal receptacle into two chambers separated by a velum is a character which needs to be re-evaluated.
Spermatogenesis and sperm structure of Neopanorpa lui and Neopanorpa lipingensis (Mecoptera: Panorpidae) with phylogenetic considerations
Authors: Zhang Bei-Bei , Hua Bao-Zhen
Published: July 2023

Spermatogenesis and sperm ultrastructure were investigated in Neopanorpa lui Chou & Ran and Neopanorpa lipingensis Cai & Hua by light and transmission electron microscopy. Two lateral lamellae run along the lateral grooves of the spermatid nucleus during spermiogenesis, but disappear in the mature spermatozoa. Sperm cells are very similar in ultrastructure between the two species. The spermatozoa are elongated cells, each comprising an apical bilayered acrosome inserted on the anterior nuclear region, an elongate nucleus that occupies the anterior sperm region, a neck region, and a posterior long flagellum. The nucleus has two prominent lateral grooves and assumes a helical appearance. The flagellum is helical and consists of a 9 + 2 axoneme, two mitochondrial derivatives of unequal size, one accessory body, and two extra-axonemal accessory structures. The uniqueness of spermatozoa of Neopanorpa lies in the specifically spoon-shaped larger mitochondrial derivative along most of the flagellum length. A tentative phylogenetic analysis based on sperm structure supports a possible monophyletic clade comprising Panorpidae, Panorpodidae, Bittacidae, and Boreidae of Mecoptera with two non-homoplasious characters: glycocalyx organised in longitudinal ridges and two extra-axonemal accessory structures/rods in flagellum. Closer affinities of Siphonaptera and the mecopteran clade are suggested by the characters of two asymmetric mitochondrial derivatives and the presence of mitochondrial derivative with crystalline structure. The sister group relationship of Panorpidae with Panorpodidae is supported by the presence of nuclear fiber and the irregular shape of the larger mitochondrial derivative.