bluuebunny/crossref_metadata_2025_split huggingface dataset:
3D Modelling of double elbow pipeline erosion in methane – water – sand multiphase medium
Authors: Taherifard Alireza , Elistratov Victor V. 
Published: May 2023

Introduction. In gas industry, predicting sand erosion damage of pipelines by sand particles is a difficult task because this process is strongly influenced by many factors. Particulate matter carried away by the multiphase product during production can seriously compromise the integrity of fluid handling structures such as pipelines and elbows.
Materials and methods. A three-dimensional numerical modelling approach in three-phase gas – liquid – solid flows was used to analyze erosion processes in pipe elbows. A key advantage of using CFD is that it can provide a wealth of information such as the effect of various parameters on erosion, maximum erosion rate, and erosion-prone areas. A variation of the Euler method for multiphase fluids was used to simulate three-dimensional unsteady gas-water annular flows with the presence of sand particles.
Results. The results showed that a vertical pipe with two elbows is more prone to erosion at the second elbow than atthe first elbow. However, in a horizontal pipe with two elbows, it can be concluded that the first elbow is more proneto erosion. On the other hand, erosion at L/D = 0 showed the maximum erosion rate among all the geometries studied.
Conclusions. In a vertical pipe, the second elbow of the pipeline is more susceptible to erosion. In addition, the erosion rate at the second elbow of vertical and horizontal pipes is the same for all studied geometries. The pipeline with L/D = 10 showed the optimal layout choice for vertical and horizontal pipe with an average erosion rate of 57.9 mm/year, which representsthe lowest erosion rate among the options studied.
Theoretical foundations of strategic motivation in the works of Nobel laureates
Authors: Fesyanova O. A. 
Published: May 2023

The purpose of the article is to expand the existing theoretical and applied understanding of strategic motivation by identifying certain aspects of this issue in the scientific works of Laureates of the Nobel Memorial Prize in Economic Sciences (officially known as The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel) in the period from 2000 to 2022.The introduction discusses the differences in the understanding of the terms “strategic motivation” and “motivation” in the works of domestic and foreign scientists and practitioners, notes a long-term, future-oriented understanding of strategic motivation and its difference from the predominantly operational nature of motivation in the understanding of the classics of management science. The main part of the article sequentially analyzes the lectures and additional materials of the award committee, scientific articles, books and monographs of the laureates related to the research topics for which the award was awarded. The analysis highlights the main aspects of scientists’ research related to strategic motivation, its place and significance in the process of developing and implementing a strategy. Intermediate conclusions are made about the views and positions on the topic under consideration of each laureate, whose work was analyzed in the article. At the end of the article a general conclusion is formulated about the relevance and interdisciplinary (at the intersection of the natural sciences and liberal arts) nature of the issue of strategic motivation, emphasis is placed on the emerging trend towards considering predominantly non-material, psychological and behavioral aspects of the subject under study, the role of innovation in stimulating micro- and macro-levels. The conclusion is made about how it is possible to expand and supplement the existing understanding of strategic motivation taking into account the considered materials. It is noted that the conclusions made on the basis of the analysis can be applied in further research, as well as in practice when creating a system of strategic motivation in enterprises.The analysis is based on the theory of strategy and methodology of strategizing of the Foreign Member of the Russian Academy of Sciences (Life-time), Dr. Sc. (Econ.), Vladimir L. Kvint.
Activities of Force Structure Military-Political Bodies: Historical Retrospective and Modern Priorities
Authors: Marchenko G. V. , Chimarov S. Yu. , Bjalt V. S. 
Published: May 2023

The article examines the historical and legal aspect of the origin and development of militarypolitical bodies, traces changes in the content of their functioning during the February and October revolutions, during the Civil (1917–1922) and Great Patriotic Wars (1941–1945), during the post-war and post-Soviet stages of national history.The conducted analysis of the current regulatory documents of the Ministry of Defense of the Russian Federation, the Ministry of Internal Affairs of Russia, the Russian Guard, allowed the authors to conclude that the military-political (political) and moral-psychological factors are strengthening in the organization of personnel education in the new geopolitical conditions. The article highlights such priority spheres of activity of officials as the formation of a statepatriotic worldview within the framework of modern informational narratives and the protection of military personnel and employees from the negative informational impact of internal and external destructive forces.The scientific novelty of the article is provided by the recommendations proposed by the authors for the activities of state authorities on information and military-political support for a special military operation in the territory of Donbass and priority areas for professional and moral and psychological training of personnel of law enforcement agencies, taking into account the military-historical heritage of the Past.
PENGOLAHAN LIMBAH ORGANIK RUMAH TANGGA BERBASIS ECO-ENZYME DALAM UPAYA MENINGKATKAN KESEHATAN LINGKUNGAN DAN PEREKONOMIAN MASYARAKAT DI KELURAHAN KORPRI JAYA, SUKARAME, BANDAR LAMPUNG
Authors: Agustrina Rochmah , Ernawiati Eti , Pratami Gina Dania , Mumtazah Dzul Fithria 
Published: May 2023

Sampah rumah tangga sering menjadi masalah di lingkungan terutama bila pengelolaannya tidak memadai sehingga menumpuk dan menyebabkan pencemaran dan menurunkan kebersihan serta kesehatan lingkungan. Penumpukan sampah di TPA juga membuat tidak ekonomis dalam hal biaya transportasi, padahal sampah ini dapat dipilah dan diolah karena masih memiliki nilai ekonomis yang tinggi, salah satunya dengan mengubahnya menjadi eco-enzyme. Eco-enzyme adalah ekstrak cairan hasil fermentasi limbah sayuran dan buah-buahan pasar maupun rumah tangga dengan substrat gula merah atau molase. Eco-enzyme dapat dimanfaatkan sebagai: pembersih lantai, sangat efektif untuk membersihkan lantai rumah, disinfektan, dapat digunakan sebagai antibakteri di bak mandi, insektisida, digunakan untuk membasmi serangga, dan cairan pembersih selokan, terutama selokan kecil sebagai saluran pembuangan air kotor. Produk eco-enzyme dapat dikomersialisasi, sehingga bisa meningkatkan perekonomian masyarakat setempat. Pengabdian bertujuan untuk memberikan edukasi bagi ibu ibu PKK Kelurahan Korpri Jaya Kecamatan Sukarame Bandar Lampung dalam mengolah limbah organik rumah tangga menjadi eco-enzyme sebagai salah satu langkah dalam mengatasi masalah lingkungan.
PEMBUATAN PUPUK CAIR ORGANIK BERSAMA KELOMPOK WANITA TANI PADANG MANIS
Authors: Netti Herawati  , Eri Setiawan  , Khoirin Nisa  , Saidi Subian , Sutrisno Agus , Aziz Dorrah 
Published: May 2023

Artikel ini berupaya memberikan gambaran dan penjelasan terkait air cucian beras merupakan salah satu limbah yang akan mudah kita temui dalam kehidupan kita. Konsumsi beras yang tinggi dalam kehidupan sehari-hari menyebabkan banyaknya air cucian beras yang terbuang dan jarang untuk dimanfaatkan Artikel ini berupaya dalam pembuatan pupuk organik cair menggunakan mikroorganisme berjenis (em4) bakteri pengurai yang dapat membantu dalam proses pembusukan organik. Effective microorganism 4 berisi sekitar 80 mikroorganisme fermentasi, diantaranya bakteri fotosintetik, Lactobacillus sp., Streptomyces sp., Actinomycetes sp. dan ragi .Pupuk organik cair yang dihasilkan dengan cara ini ramah lingkungan sangat berbeda dengan pupuk cair yang pembuatannya berasal dari bahan bahan kimia. Kompos yang dihasilkan mengandung zat-zat yang tidak dimiliki oleh kompos anorganik yang baik untuk tanaman. Para petani dapat mengikuti dengan baik dan ikut serta dalam melakukan kegiatan praktik pembuatan Pupuk Organik Cair (POC). Melalui kegiatan tersebut diharapkan para petani dapat membuat Pupuk Organik Cair (POC) sendiri di rumah dengan bahan-bahan yang mudah didapatkan dan proses yang sederhana. Tingkat keberhasilan pembuatan pupuk tersebut yaitu 95 %. Dengan adanya pembuatan Pupuk Organik Cair (POC) tersebut limbah hasil cucian beras dapat termanfaatkan secara optimal.
PELATIHAN DAN PEMBUATAN E-COMMERCE PADA UMKM PENGRAJIN BAMBU UNTUK MENINGKATKAN EKONOMI DAERAH KECAMATAN GUNUNG ALIP TANGGAMUS
Authors: Wulansari Ossy Dwi Endah , Wiryawan Driya , Nursiyanto Nursiyanto , Zaini T. M. 
Published: May 2023

Provinsi Lampung merupakan wilayah yang terletak di ujung pulau Sumatera yang berseberangan dengan pulau Jawa merupakan gerbang Sumatera, yang mempunyai adat istiadat masyarakat yang dikenal dengan unsur adat Saibatin dan Papadun yang juga dikenal dengan istilah Ulun Lampung. Seiring dengan visi dan misi Provinsi Lampung guna melestarikan budayanya termasuk kerajinan bambu motif lampung maka tujuan yang akan di capai dalam kegiatan pelatihan di daerah Kecamatan Gunung Alip adalah untuk melestarikan dan mengembangkan kerajinan bambu. Pandemik COVID-19 yang mewabah sejak akhir tahun 2019 telah membawa dampak merugikan pada bidang ekonomi di Indonesia. Salah satu dampak negatifnya yakni menghambat bisnis Usaha Mikro Kecil dan Menengah atau UMKM di seluruh wilayah Indonesia, termasuk di Provinsi Lampung. Untuk mendukung keberlanjutan UMKM, dipandang perlu untuk membekali pelaku UMKM ketrampilan dan pengetahuan terkait e-commerce guna dapat meningkatkan peran kelembagaan dalam hal permodalan UMKM dengan pengembangan ekonomi lokal guna berdaya saing serta turunnya angka kemiskinan menjadi 20% juga peningkatan kunjungan wisatawan lokal dan mancanegara serta kegiatan seni dan budaya untuk melihat dan membeli melalui on-line dan juga secara langsung melihat produk kerajinan dan meningkatnya sarana perhubungan guna pendistribusian produk hasil kerajinan. Metode yang digunakan dalam kegiatan pengabdian kepada masyarakat ini adalah persiapan, pelaksanaan, penyampaian materi (praktik), refleksi, dan penutupan serta pemaparan penggunaan e-commerce serta evaluasi kegiatan pengabdian kepada masyarakat pada pengrajin bambu kecamatan Gunung Alip di Kabupaten Tanggamus.
PENINGKATAN HASIL BELAJAR PESERTA DIDIK KELAS 4 SDN JUNREJO 2 BATU MATERI PENINGGALAN KERAJAAN HINDU DAN BUDDHA MENGGUNAKAN MODEL PROBLEM BASED LEARNING
Authors: Ramadhani Desia Fajira , Prihanta Wahyu , Kurniasih Dwi 
Published: May 2023

ABSTRAK
Materi peninggalan keraajaan Hindu dan Buddha adalah salah satu materi IPAS kelas 4 yang berkaitan dengan lingkungan sekitar. Pada penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar peserta didik kelas 4 SDN Junrejo 2 Batu pada materi peninggalan Kerajaan Hindu Buddha menggunakan model Problem Based Learning. Dalam pembelajaran juga menggunakan media pembelajaran digital berupa power point dan video. Penelitian ini dilakukan dalam 2 siklus, setiap siklusnya terdiri dari 2 kali pertemuan. Teknik pengumpulan data pada penelitian ini adalah menggunakan Teknik tes (tertulis terhadap materi peninggalan Kerajaan Hindu dan Buddha). Hasil penelitian tindakan kelas menyatakan bahwa terdapat peningkatan hasil belajar peserta didik kelas 4 SDN Junrejo 2 Batu sebesar 25% dari Siklus I (65%) ke Silus II (90%)
Kata Kunci: Model Problem Based Learning, Media pembelajaran, Hasil Belajar
Early Career Teachers with Mentoring during the Induction Phase: Assessments of the Mentoring Relationship and Design of the Mentoring Process
Authors: Haas Elisabeth , Schneider Klaus , Symeonidis Vasileios , Drenowatz Clemens , Greier Klaus 
Published: May 2023

In this article, the results of a survey of early career teachers on their experience with and perception mentorship during their first year of teaching are examined using a quantitative approach. A total of 100 early career teachers (80% female) of which 43 taught at primary school level participated in the study. Half of those surveyed agreed that mentors should be implemented during the induction phase. Primary school teachers, however, were less likely to not need any further mentoring to improve their quality of teaching beyond the induction phase (p=0.028; p=0.007). In general participants rated the mentoring relationship as a particularly trusting collegial and exemplary supportive working relationship. Nevertheless, more primary school teachers considered their mentors to be motivated for carrying out their task compared to secondary school mentees (p=0.036). Half of the respondents already recognized a personal learning success or further development process through the mentoring process in the induction phase. Taken together these results provide initial insights into the benefits of a mentoring process for novice teachers during their first year and highlight some benefits along with some concerns regarding this process.
Integrasi Tactical Games Approach Bagi Pelatih Dan Atlet Bolavoli Porwil Sumatera Barat
Authors: Muhamad Sazeli Rifki  , Hanif Badri  , Hermanzoni  
Published: May 2023

Masih rendahnya prestasi bolavoli menjadi masalah yang serius pada PBVSI Sumatera Barat. Gagalnya Tim bolavoli Sumbar mengikuti ajang PON di Jawa Barat2016 menjadi bukti bahwa prestasi masih sangat rendah. Kemampuan pelatih yang terbatas dalam perencanaan dan pembuatan program latihan yang minim, belum serius dalam pembibitan atlet yang disebabkan tidak adanya manajemen klub yang sesuai, yaitu pembinaannya dimulai dari usia dini, melainkan sudah pada usia dewasa.
Identifikasi dan Perumusan masalah sebagai berikut: 1).Belum adanya program latihan yang sesuai dan mudah diterapkan2).Belum adanya perhatian yang baik dari pengurus PBVSI terhadap pembibitan atlet usia dini, 3).Belum mahirnya pelatih dalam menerapkan model latihan.Khalayak sasaran dari kegiatan ini adalah Pengprov PBVSI Sumbar, para atlet bolavoli, dan para pelatih yang ada di Sumatera Barat, dalam hal ini diambil 2 Tim Bolavoli Porwil yang dinilai melakukan pembinaan yang berjenjang. PKM ini akan diadakan pendataan dari pelatih, atlet dan klub bolavoli, memberikan pelatihan dalam bentuk coaching dengan materi: manajemen organisasi, penyusunan program latihan, penerapan program latihan.Pelaksanaan kegiatan diadakan pada pada tahun 2019 yang bertempat di Pengprov PBVSI Sumbar.
Untuk mengatasi permasalahan rendahnya prestasi bolavoli Sumbar maka diberikan solusi yaitu sebagai berikut:1) Workshop dan Coaching Clinic bagi pelatih, 2) Penerapan model latihan, 3) Lokakarya tentang manajemen organisasi, 4) Standarisasi kurikulum dan evaluasi bolavoli. Adapun luaran yang diharapakan dari kegiatan ini adalah; 1) Produk: Model Latihan Taktical Games Approach, Manajemen Organisasi, Program Latihan bola voli, 2) Jasa: Terbentuknya tim bolavoli Sumbar dengan kemampuan dan keterampilan yang taktis, buku model organisasi, buku panduan dan metode pelatihan yang terencana, berjenjang dan berkelanjutan.
KKN-PPM Pengelolaan Keselamatan Kesehatan Kerja Bagi Operator Boat Wisata Dan Pemandu Wisata
Authors: Neldi Hendri , Gusril  
Published: May 2023

Kuliah Kerja Nyata selanjutnya disingkat KKN merupakan kegiatan pengabdian kepada masyarakat yang berbasis pada Pembelajaran Pemberdayaan Masyarakat (PPM) dan dilaksanakan oleh mahasiswa. KKN merupakan kegiatan intrakurikuler yang dilakukan oleh mahasiswa pada semua program studi, dengan kesatuan antar disiplin ilmu pengetahuan (interdisipliner). Dalam pelaksanaannya dilaksanakan secara terkoordinasi oleh suatu institusi atau lembaga dan didampingi oleh dosen pembimbing. Keadaan kecelakaan yang menimpa seseorang tak jarang memicu kepanikan orang di sekitarnya. Kondisi korban yang seyogyanya mesti mendapat pertolongan pertama alias darurat justru bisa bertambah parah. Padahal, bila cukup memiliki pengetahuan tentang pertolongan pertama pada kecelakaan (P3K) biasanya kondisi buruk korban dapat diatasi. Masih banyak permasalahan yang dijumpai pada masyarakat Sungai Pinang di kawasan Mande untuk meningkatkan jumlah kunjungan wisata, salah satunya adalah rendahnya Pengelolaan Keselamatan Dan Kesehatan Kerja Bagi Operator Boat Wisata Dan Pemandu Wisata Di Kenagarian Sungai Pinang. Adapun solusi permasalahan dari kegiatan pengabdian kepada masyarakat dalam skim KKN PPM ini adalah: a) Belum ada kepedulian dan penerapan operator boat dan pemandu wisata tentang Keselamatan dan Kesehatan Kerja, kiberikan solusi melalui lokakarya tentang pentingnya keselamatan dan kesehatan kerja bagi pekerja, b) Kurangnya pengetahuan dan keterampilan operator boat dan pemandu wisata dalam melakukan Pertolongan pertama pada kecelakaan (P3K) dan Pertolongan pertama pada penyakit (P3P). Solusi yang diberikan adalah pelatihan tentang Pertolongan pertama pada kecelakaan (P3K) dan Pertolongan pertama pada penyakit (P3P), c) Belum adanya keterampilan operator boat dan pemandu wisata dalam mengatasi kegawat daruratan kecelakaan di Air (Emergency Respons Water). Solusi yang diberikan adalah pendampingan kepada operator boat dan pemandu wisata dalam praktek dan keahlian dalam menolong korban dalam kasus Emergency Respons Water.
RESEARCH OF ACID PROPERTIES OF COMPLEX OXIDE CATALYST 50%Cu3(PO4)2•50%Ni3(PO4)2
Authors: Golub N.P. , Golub E.O. , Kozma A.A. , Kuznietsova A.O. , Hurch A.V. , Herneshii Y.M. 
Published: May 2023

Individual orthophosphates of copper (II) and nickel (II) were synthesized and a new method of synthesis was developed, and a new complex catalytic system based on them of the type xCu3(PO4)2×yNi3(PO4)2 - 50%Cu3(PO4)2∙50%Ni3(PO4)2 was obtained, which has the predicted optimal acidic surface properties and the corresponding active centers. The acidic properties of the surface of the obtained individual copper (II) and nickel (II) phosphates and complex copper-nickel phosphate catalytic systems and the distribution of active centers on them were investigated. The peculiarities of the influence of synthesis conditions and temperature on the composition, structure and acidic properties of the surface of the obtained catalysts, as well as the nature and character of the formation of active centers of different strengths, were studied. It is established that calcination of the new synthesized copper-nickel phosphate catalytic system in the studied temperature range (120-700оС) allows not only to carry out complete dehydration of the obtained crystalline hydrate, but also contributes to a gradual change in the value of surface acidity. This leads to the formation on the surface of the synthesized complex copper-nickel phosphate catalytic system 50%Cu3(PO4)2∙50%Ni3(PO4)2 acidic active centers of appropriate strength. The promoting role of nickel ions Nі2+ in the structure of the copper-phosphate catalyst was confirmed and the presence of a synergistic effect of both these phosphates on the value of acidity in the structure of the synthesized complex catalytic system was established. A new active and cheap acidic complex catalyst – 50%Cu3(PO4)2∙50%Ni3(PO4)2, which has the necessary structure, optimal acidic surface properties, and appropriate active centers, has been obtained; therefore, it can be used for research in the chemical industry as an active and efficient catalyst for the partial oxidation of hydrocarbons into valuable products.
Keywords: catalysts; heterogeneous catalysis; phosphates; complex oxides; oxidation; n-alkanes; hydrocarbons; ethane; ethylene.
INFRARED SPECTROSCOPIC ANALYSIS OF COMPLEX OXIDE CATALYST 50%Cu3(PO4)2•50%Ni3(PO4)2
Authors: Golub N.P. , Golub E.O. , Kozma A.A. , Kuznietsova A.O. , Hurch A.V. 
Published: May 2023

It is established that the frequencies and intensities of the absorption bands of the infrared spectra of the obtained air-dried sample 50%Cu3(PO4)2∙50%Ni3(PO4)2 and calcined at the optimum heat treatment temperature of 600оС are characterized by significant absorption in the valence (3460-3020 cm-1) and strain (2360-1400 сm-1) vibrations of hydroxyl OH-groups of water molecules. Valence vibrations of phosphate ion are most manifested in dehydration products in the form of clear bands in the absorption frequency range 1110-410 сm-1. For the investigated sample, three absorption bands were observed in the region: 3188,72 сm-1, 1621,84 сm-1 та 1434,78 сm-1. They confirm the existence of two types of crystalline hydrate water molecules, which are characterized by different hydrogen bonding energies. In the process of heat treatment of the synthesized sample in the temperature range of 120-700оС , the process of dehydration occurs. In this case, the intensity of the absorption bands in the region of valence and strain vibrations of water molecules gradually decreases in the obtained IR spectra. The phenomenon of complication of the spectrum of orthophosphate ion by additional absorption bands is obviously associated with the distortion of the tetrahedron structure in real crystals and the reduction of its symmetry. It can be a consequence of both low symmetry of the environment and perturbation of the orthophosphate anion РО43– by water molecules when intermolecular hydrogen bonds occur. It may also be due to possible additional coordination of orthophosphate anion with metal cations Сu2+ and Ni2+. Calcination of the sample at the final heat treatment temperature of 700оС leads to an anhydrous orthophosphate system. This will lead to a decrease in the value of surface acidity and catalytic inertness of the sample.
Keywords: catalysts; heterogeneous catalysis; phosphates; complex oxides; oxidation; n-alkanes; hydrocarbons; ethane; ethylene; IR spectroscopy.
GANTI RUGI AKIBAT PEMBATALAN KHITBAH DALAM PERSPEKTIF HUKUM ISLAM ; STUDI KASUS PEMBATALAN KHITBAH DI KOTA MEDAN
Authors: Hasanah Uswatun 
Published: May 2023

Compensation due to cancellation of sermons according to article 13 of the KHI (Islamic Jurisprudence) does not give impact in legal consequences. However, Islamic law has an opinion that allows for compensation due to the cancellation of the Khitbah (requests) in line with the opinion of Dr. Muhammad Abu Zahrah. And the compensation is also for the benefit of people so that none of the parties feel wronged since of the suffering they feel as a result of the cancellation.
Peran Dinas Pendidikan Dalam Wajib Belajar di Tinjau Menurut Fiqh Siyasah
Authors: Alawiyah Rafida 
Published: May 2023

This research discusses the Role of the Education Office in the Compulsory Education Program in the New Village of Batahan District, West Pasaman Regency, this research was motivated by the large number of children who Drop out of school and prefer to work while judging from the age of children aged 7-18 years should be eligible to sit in the pendidiment and complete their education until produce diplomas from elementary, junior high and high school so as to cause implementation that is not in accordance with existing rules. This type of research is field research (Field Researche) using qualitative descriptive analysis methods, this method of collecting data collection is by interview and documentation. The parties studied are the West Pasaman Regency Education Office, The Community and Children who dropped out of school in the NewVillage of West Pasaman Regency. The results of the study that said that the Role of the Education Officeinthe Compulsory Education Program in the NewVillage of Batahan District of West Pasaman Regencyhave been carried out. This is seen from the form of implementation that has been implemented by the Education Office by socializing to schools, UPTD and the community, but not yet maximal and still Many children drop out of school and prefer to work and do not produce a diploma.