bluuebunny/crossref_metadata_2025 huggingface dataset:
Jerarquía urbana en el área metropolitana de Málaga (España)
Authors: Montosa Muñoz Jesús , Reyes Corredera Sergio
Published: July 2021

El objeto del presente trabajo es el estudio de la jerarquía funcional y demográfica en el área metropolitana de Málaga (España). Para ello, emplearemos técnicas de análisis habituales en geografía urbana, como el índice de Davies y la regla rank-size. El área metropolitana de Málaga comprende un área policéntrica con dos subcentros de gran relevancia funcional y demográfica: las ciudades de Málaga y Marbella, así como algunos subcentros urbanos localizados en el eje urbano litoral. Todos ellos comparten una especialización funcional basada en la actividad turística que genera importantes sinergias en otros sectores dentro del área. Entre los resultados obtenidos, resaltamos la primacía funcional de la ciudad de Málaga seguida,- a cierta distancia-, de la ciudad de Marbella, pero con una ausencia de jerarquía demográfica, que es resultado de un balance desigual entre flujos de entradas y salidas entre la costa urbana y su traspaís rural del interior, debido a las dificultades orográficas que dificulta los intercambios entre ambos ámbitos condicionado por la dificultad en las comunicaciones terrestres entre el interior rural y la costa urbana, con la salvedad de los subcentros de la Hoya de Guadalhorce considerada como el área de expansión natural de la metrópolis malacitana.
Carbon Nanoparticles Synthesis By Different Nd:Yag Laser Pulse Energy
Authors: Fahad Malak Mohammed , Majeed Munaf S. , Hashim Emad Talib
Published: July 2021

One of the most important techniques for preparing nanoparticle material is Pulsed Laser Ablation in Liquid technique (PLAL). Carbon nanoparticles were prepared using PLAL, and the carbon target was immersed in Ultrapure water (UPW) then irradiated with Q-switched Nd:YAG laser (1064 nm) and six ns pulse duration. In this process, an Nd:YAG laser beam was focused near the carbon surface. Nanoparticles synthesized using laser irradiation were studied by observing the effects of varying incident laser pulse intensities (250, 500, 750, 1000) mJ on the particle size (20.52, 36.97, 48.72, and 61.53) nm, respectively. In addition, nanoparticles were characterized by means of the Atomic Force Microscopy (AFM) test, pH easurement, and an Electrical Conductivity (EC) test of the nano solution. The smallest particle size was produced with (250) mJ laser pulse energy.
Analisa Perkembangan Musik Pada Spotify Menggunakan Structured Query Language (SQL)
Authors: Maringka Raissa Camilla , Khoirunnita Aulia , Maringka Rodney , Utami Ema , Kusnawi Kusnawi
Published: July 2021

Musik mengalami perubahan dan berevolusi hingga mencapai abad ke 21. Tidak seperti jaman purbakala, generasi digital saat ini dapat menggunakan teknologi dalam menikmati musik. Spotify menjadi salah satu aplikasi yang banyak digunakan sebagai platform dalam music streaming. Perubahan musik yang signifikan setiap tahunnya mempengaruhi pembentukan pola pikir masyarakat terhadap preferensi pilihan musik. Oleh karena itu perlu dilakukan pemantauan terhadap trend perkembangan musik serta mengetahui faktor-faktor yang mempengaruhinya untuk melihat perubahan apa saja yang terjadi serta menjadi tolak ukur untuk membantu industri musik dalam menghasilkan musik yang layak didengarkan serta membawa pengaruh positif. Penelitian ini akan memberikan hasil analisa dari perkembangan trend perkembangan musik khususnya pada aplikasi Spotify menggunakan Structured Query Language. Dari hasil analisa didapatkan visualisasi dari trend genre musik dan fitur audio dalam jangkauan tahun 2010 hingga 2020 yang diolah menggunakan Power BI. Diharapkan hasil tersebut dapat membantu indusri musik dalam menghasilkan musik yang digemari serta memberikan pengetahuan yang baik terhadap penggemar musik.Kata kunci—Musik, Spotify, SQL, Power BI
Implementasi LDA untuk Pengelompokan Topik Tweet Akun Bot Twitter bertagar #covid-19
Authors: Febriansyach Muhammad Alif Noor , Rashif Faza , Nirvana Goldio Ihza Perwira , Rakhmawati Nur Aini
Published: July 2021

Twitter merupakan media sosial yang sedang mengalami perkembangan yang pesat, karena pengguna dapat berinteraksi satu sama lain menggunakan media komputer atau perangkat mobile. Perubahan tagar trending  yang berubah dengan cepat sesuai sesuai dengan intensitas pengguna membicarakan hal tertentu. Sehingga media social twitter ini cocok untuk merumpi membicarakan hal-hal terkini, salah satunya masalah COVID-19. Hal ini tidak menutup kemungkinan ada oknum yang menggunakan predikat ini untuk membuat berita untuk menggiring opini public mengenai COVID-19 mengenai berita baik maupun berita yang tak bersumber yang dapat menyebar dengan cepat. Pada penelitian ini penulis ingin mengetahui macam-macam topik yang dibahas oleh  akun bot terhadap penyebaran informasi menggunakan tagar #covid19. Penelitian ini dilakukan dengan menggunakan metode Latent  Dirichlet  Allocation  (LDA ). Analisis dilakukan setelah melakukan text mining pada 162 Tweet dari 62 akun bot Twitter. Untuk menentukan jumlah topik yang optimal, yakni dengan melihat nilai perplexity dan topik coherence. Hasil yang didapatkan adalah  5 topik teratas antara lain tentang kondisi dan dampak pandemi saat ini, himbauan untuk menjaga jarak agar Kesehatan tetap terjaga, perkembangan penyebaran COVID 19 yang ada di Indonesia, vaksinasi yang terjadi di beberapa wilayah di Indonesia, dan cara menghadapi COVID-19.Kata kunci—Covid-19, Twitter, Akun Bot, LDA
Analisis Gambar Sel Darah Berbasis Convolution Neural Network Untuk Mendiagnosis Penyakit Demam Berdarah
Authors: Baihaqi Wiga Maulana , Widiawati Chyntia Raras Ajeng , Sabil Dila Putri , Wati Anjar
Published: July 2021

Demam berdarah masih menjadi masalah serius. Banyaknya kasus Demam Berdarah di dunia disebabkan oleh iklim yang tidak stabil dan curah hujan yang tinggi pada musim penghujan, yang berpotensi menjadi sarana perkembangbiakan nyamuk Aides Egypt. Tes darah merupakan alat diagnostik utama untuk mendeteksi beberapa penyakit seperti leukemia, demam berdarah, talasemia dan malaria. Perubahan jumlah sel darah ini dengan jelas mengidentifikasi penyebab penyakit. Penelitian ini berfokus pada sel darah merah dan sel darah putih dalam membantu dokter mendiagnosis pasien dengan virus demam berdarah, dimana Tes Hematologi dalam mendiagnosis demam berdarah memang memperhatikan persentase tingkat jumlah sel darah merah dan sel darah putih. Dalam Tes Hematologi, dilakukan penghitungan Hematokrit dan Hitung Darah Lengkap, yang merupakan metode umum untuk mendiagnosis infeksi dengue. Ukuran trombosit yang kecil membuat teknik ini tidak digunakan dalam penelitian ini. Penelitian ini mengusulkan algoritma Convolutional Neural Network untuk mengenali fitur set data sel darah dan mendeteksi demam berdarah berdasarkan masukan sel darah. Hasil penelitian yang dihasilkan menghasilkan metode dan sistem yang dapat mendiagnosis pasien DBD dengan memanfaatkan citra hapusan sel darah, sehingga dapat mempercepat proses diagnosis dan menghemat biaya.Kata kunci—demam berdarah, klasifikasi, Convolutional Neural Network
DAMPAK STRUKTUR MODAL TERHADAP KINERJA PERUSAHAAN: BUKTI EMPIRIS PERUSAHAAN NON-FINANSIAL DI INDONESIA
Authors: Lule Benny , Pangalila Bobby
Published: July 2021

Tujuan dari penelitian ini adalah untuk menganalisis pengaruh struktur modal terhadap kinerja perusahaan pada sektor perusahaan non-finansial di Bursa Efek Indonesia pada periode 2012 – 2016. Regresi linier berganda telah digunakan untuk menganalisis pengaruh dari 4 variabel independen yaitu rasio total hutang, rasio total hutang terhadap ekuitas, rasio hutang jangka pendek terhadap asset, dan rasio hutang jangka panjang terhadap ekuitas sedangkan variabel dependen yang digunakan yaitu Return on asset. Hasil regresi menemukan secara statistik ada pengaruh yang signifikan dari struktur modal terhadap kinerja perusahaan. Secara parsial rasio total hutang dan rasio hutang jangka Panjang terhadap ekuitas berpengaruh signifikan negatif, sedangkan rasio total hutang terhadap ekuitas berpengaruh signifikan positif terhadap Return on asset. Tetapi rasio hutang jangka pendek terhadap asset tidak berpengaruh terhadap Return on asset.

Kata kunci: Struktur modal, Kinerja perusahaan, Return on asset
KONSEP EKONOMI IBNU KHALDUN DAN AL-GHAZALI
Authors: awaliah ainun
Published: July 2021

Artikel ini berisikan tentang pemikiran ekonomi Islam Ibnu Khaldun dan Al-Ghazali
Aliran Ekonomi Islam Pada Masa Kontemporer
Authors: SYAM FADLY
Published: July 2021

Artikel ini membahas tentang aliran-aliran perekonomian pada masa kontemporer dan memiliki berbagai macam aliran ekonomi
Hukum Lahan Pertanian
Authors: AZ-ZAHRA NOLA
Published: July 2021

catatan terkait tentang hukum lahan pertanian.
Artikel ekonomi syariah final
Authors: Widiyanti
Published: July 2021

Quality of servise (QoS)
Fainal hukum tata Negara ABD HAPID_10200120256
Authors: HAPID ABD
Published: July 2021

Menjadi seorang pemimpin ,tentunya harus memiliki jiwa kepemimpinan, memiliki rasanasionalisme,tidak memaksakan kehendak pribadi, tidak mengkhianati rakyat nya sendiri, tidakmendiskriminasi suatu keberagaman minoritas tubuh.Di indonesia dikenal sebagai negara hukum, lulusan luar negeri pun belajar dari sabangsampai meroke. Termasuk pemimpin-pemimpin besar. Pemimpin partai politik juga ada. Pemimpinpengusaha terkemuka ada pemimpi demontrasi juga ada.pemimpin berbalut pancasila ada. Semuaada. Tidak ada habisnya model pemimpin untuk sejahtera.Seseorang pemimpin asing amerika serikat membawa konsekuensi bahwa orient patriot riwukore seharusnya secara merta kehilangan statusnya sebagai warga negara indonesia tanpa harusmelalui mekanisme administrasif pelepasan kewarga negaraan sesuai undang – undang kewarganegaraan RITerlebih, diterbitkan paspor amerika serikat atas nama orient patriot riwu kore (berlaku 2017– 2027)sebagai kelanjutan paspor amerika serikat sebelumnya yang berlaku hingga pada 2017.Terbitnya paspor tersebut menurut mahkamah meneguhkan status yang bersangkutan sebagaiwarga negara amerika serikat, “kata saldi.Setelah terbitnya paspor amerika serikat, orient memperoleh paspor republik indonesia yangberlaku hingga sejak 2019 hingga 2024. Selanjutnya , dalam persidangan telah terungkap fakta dalamupayanya memperoleh paspor republik indonesia, kepada petugas konsulat jendral republikindonesia (KJR) di los angeles, orient patriot riwu kore tidak pernah menerangkan atau tidakmengakui sebagai pemegang paspor amerika serikat.
ARTIKEL KONSEP EKONOMI PADA MASA NABI MUHAMMAD SAW
Authors: awaliah ainun
Published: July 2021

Artikel ini berisikan tentang konsep ekonomi pada masa nabi Muhammad SAW
Meeting and Missing Minds: Children and Adults Use Alignment of Intuitions to Solve Pure Coordination Games
Authors: Perez-Zapata Daniel Ivan , McKenzie-Smart Xavia , Charest Ian , Apperly Ian
Published: July 2021

In pure coordination games players seek to coordinate responses with one another without communicating. Without a logically correct response, success depends upon players intuiting a response that is mutually obvious. Previous work suggests that such coordination requires a distinctive form of “group” thinking and sufficient mutual knowledge, but reveals little about the basis for the intuitive judgements themselves. Here, that question was addressed for the first time by examining the basis of coordination performance of groups whose intuitions might plausibly differ: children versus adults. Twenty-five 5-year-olds, 30 7-year-olds, and 25 adults undertook four types of coordination game, and novel metrics allowed “intuitive alignment” in responses to be evaluated within- and between-groups. All groups performed above chance, and adults showed higher levels of alignment than children, but adults and children showed different patterns in their intuitions. Implications for intergenerational understanding and mis-understanding are discussed.
PENGELOLAAN PAJAK DAN PENDAPATAN ASLI DAERAH
Authors: MORIDU IRWAN
Published: July 2021

Buku ini ditulis dalam rangka membantu dan menambah khasanah pengetahuan terkait dengan Pajak Daerah dan Pendapatan Asli Daerah untuk mendukung pengelolaan Pajak Daerah yang lebih efektif serta buku ini penulis maksudkan untuk menambah referensi di bidang Manajemen Keuangan khususnya Sektor Publik. Penulis menyampaikan banyak terima kasih kepada Penerbit Pena Persada yang telah menerbitkan buku ini. Kepada para kolega pengajar di Fakultas Ekonomi dan Bisnis Universitas Muhammadiyah Luwuk, serta semua pihak yang telah membantu, penulis juga menyampaikan terima kasih. Dan yang tidak terlupa untuk Orang Tua, Keluarga dan Sahabat yang sudah banyak membantu memberikan semangat.
PRINSIP KERJA SAMA DALAM TINDAK TUTUR (Studi Etnografi Komunikasi pada Polisi Sentra Pelayanan Kepolisian Terpadu Polres Metro Depok)
Authors: Sari Ni Wayan Ayu Permata
Published: July 2021

Buku ini membahas tentang prinsip kerja sama yang dianalisis dengan menggunakan SPEAKING Hymes dari tindak tutur masyarakat dan polisi Sentra Pelayanan Kepolisian Terpadu (SPKT) Polres Metro Depok. Kajian dalam buku ini menunjukkan adanya fenomena unik dari tindak tutur Polisi SPKT dan masyarakat dalam pematuhan prinsip kerja sama Grice. Ditemukan bahwa pematuhan maksim kuantitas sebanyak 248 pasang tuturan, pematuhan maksim kualitas sebanyak 226 pasang tuturan, pematuhan maksim relevansi sebanyak 158 pasang tuturan, dan pematuhan maksim cara/pelaksanaan sebanyak 206 pasang tuturan. Kajian dalam buku ini menggunakan metode ethnografi komunikasi SPEAKING Hymes yang dianalisis dan dikaitkan dengan pematuhan maksim prinsip kerja sama Grice dalam tindak tutur polisi antara polisi dan masyarakat yang hadir di Sentra Pelayanan Kepolisian Terpadu (SPKT) Polres Metro Depok.
MODUL CONTEXTUAL TEACHING AND LEARNING (CTL) BERMUATAN PENDIDIKAN KARAKTER
Authors: Salahuddin Amar
Published: July 2021

Terdapat beberapa permasalahan dalam pencapaian tujuan pembelajaran bahasa Indonesia, khususnya pada pembelajaran menulis teks prosedur kompleks. Pertama, guru mempunyai keterbatasan dari segi waktu dalam menyusun sendiri bahan ajar yang sesuai dengan karakteristik siswa. Oleh karena itu, guru mewajibkan siswa untuk selalu menggunakan buku paket dan Lembar Kerja Siswa (LKS) atau Lembar Kerja Peserta Didik (LKPD) saat pembelajaran di dalam kelas. Kedua, siswa kurang memperkaya sumber belajar yang relevan dengan materi yang dipelajari. Ketiga, fasilitas sumber belajar yang disediakan perpustakaan belum maksimal dalam memenuhi kebutuhan sumber belajar pelengkap bagi siswa. Berdasarkan permasalahan tersebut, perlu dikembangkan sebuah bahan ajar berupa modul untuk siswa guna menunjang pembelajaran menulis teks prosedur kompleks. Modul tersebut dikembangkan dengan pendekatan Contextual Teaching and Learning (CTL). Bersamaan dengan itu, modul juga diintegrasikan dengan pendidikan karakter. Dengan demikian, Buku ini menjelaskan proses pengembangan modul berbasis pendekatan CTL bermuatan pendidikan karakter pada pembelajaran menulis teks prosedur kompleks: studi kasus siswa kelas X SMA Negeri 1 Solok Selatan Provinsi Sumatra Barat
MODEL KOMPETENSI JABATAN KEPALA DINAS KESEHATAN KABUPATEN ATAU KOTA
Authors: DAKHI RAHMAT ALYAKIN
Published: July 2021

Dalam buku ini membahas tentang model kompetensi jabatan kepala dinas kesehatan kabupaten atau kota. Pengukuran dan pengkajian (assesment) kompetensi jabatan Kepala Dinas Kesehatan Kabupaten atau Kota dilakukan melalui suatu standar kompetensi yang merupakan persyaratan yang harus dimiliki dalam melaksanakan tugas pokok dan fungsi jabatan Kepala Dinas Kesehatan Kabupaten atau Kota. Kompetensi Kepala Dinas Kesehatan Kabupaten atau Kota merupakan kemampuan dan karakteristik yang dimiliki berupa pengetahuan, keterampilan atau keahlian, dan sikap perilaku yang diperlukan dalam menjalankan tugas-tugas dan fungsi jabatannya selaku Kepala Dinas Kesehatan Kabupaten atau Kota. Berdasarkan uji kompetensi, dapat diketahui apakah seseorang yang menduduki jabatan Kepala Dinas Kesehatan Kabupaten atau Kota telah memiliki kompetensi tertentu yang dipersyaratkan, jika belum memiliki kompetensi yang disyaratkan, dapat dilakukan pengembangan kompetensi tersebut dengan cara pelatihan, atau perlu dilakukan mutasi sehingga kompetensi juga bermanfaat untuk training need analysis.
Epidemiology and visual outcome of severe eye injuries in a tertiary center of Gandaki Province of Nepal
Authors: Joshi Kripa , Khem Kaini Raj , Jha Kirti Nath , Shrestha Niraj Man , Godar Srijana Thapa
Published: July 2021

Introduction: Ocular trauma is an important worldwide preventable public health problem which may lead to permanent visual impairment. This study aims to determine the demographics, clinical profile and visual outcome of severe eye injuries.
Methods: This study was conducted at a tertiary centre from January 2013 to August 2014. Cases of severe eye injuries hospitalized at or presenting to emergency/OPD were included in the study. All cases underwent detailed examination and necessary intervention. Cases were followed upto 3 months and final visual outcome was evaluated.
Results: The study comprised of 60 individuals (65 eyes); 76.7% males and 23.3% females. Out of 60 cases, the age group 1-9 years had the highest occurrence with 23.33% followed by 20-29 years with 20% and majority were students 45%. Impact with stone was the commonest cause of injury reported on 21.7% followed by road traffic accident (RTA) 20%. Closed-globe injuries accounted for 36.6% and open-globe injuries for 33.3%. At the time of presentation, visual acuity of less than 6/18 was seen in 71.6% and at follow up was seen in 45%. Among total cases, 63.3% eyes were managed conservatively, 30% eyes underwent surgery and 6.7% were referred to higher centre for vitreoretinal surgeries.
Conclusions: Severe eye injuries were seen in 0.13% of total eye injuries. Paediatric and young adult males formed the majority of victims. Stone and road traffic accidents were the common causes. One fourth of the eyes were blind. Primary prevention and management of the affected cases is the clear need.
Factors influencing job retention and satisfaction among nurses in tertiary level hospital
Authors: Rana Mana Maya , Shakya Nona
Published: July 2021

Introduction: Retention of nurses in any health care facilities is essential for maintaining quality nursing care. Nurses’ job satisfaction is an important issue to retain nurse in same organization. The study aimed to assess factors influencing job retention and satisfaction among nurses.

Methods: The descriptive cross-sectional study was done among 125 nurses working in Manipal Teaching Hospital. Purposive sampling technique was used to select the sample. The semi structured self-administered questionnaire was used to collect data. The collected data was analysed by using descriptive and inferential statistic.

Results: Majority (90.4%) of nurses were in age group 21 to 39 years, 78.4% of nurses wanted to continue their job in current organization. All the nurses agreed on timely payment of salary followed by good working relationship with colleagues (93.6%), feeling proud to tell name of organization (89.6%), adequate supplies and equipment (83.2%), safe working environment (80.6%), opportunity to develop many job skill (81.6%), supportive matron (75.2%), the financial incentives such as bonus and allowance (67.2%), higher salary compared to similar organization (64.8%) are important factors to motivate nurses to retain in current organization. Only half of the nurses (50.4%) were satisfied with their job. The significant correlation was seen between factors influencing job retention and their satisfaction level.

Conclusion: The study concluded that timely payment of salary, image of organization, safe working environment and adequate equipment and supplies are important factors to retain in this organization.
Assessment of arch width changes in Class I and Class II Division 1 patients treated with fixed orthodontics
Authors: Parajuli Umesh , Bajracharya Manish , Pandey Manju , Gurung Ima , Tuladhar Sapna Laxmi
Published: July 2021

Background: The orthodontic treatment should aim to maintain the inter-canine and inter-molar width to that of the pre-treatment values. The study was conducted with objective to evaluate arch width changes in Class I and Class II patients treated with fixed orthodontics.

Methods: This was a hospital-based cross-sectional study with two study groups. The first group included patients with Class I malocclusion, treated with four first premolar extractions and the second group included patients with Class II Div 1 malocclusion, treated with upper two first premolar extractions. The inter-canine and inter-molar width of the pre and post-treatment study model were measured. To compare the changes observed amongst two groups, independent samples t-test was performed. A paired sample t-test was used to evaluate the treatment changes within each group.

Results: There was significant increase in inter-canine width in both maxillary and mandibular arches in both the groups. In Class I extraction group there was significant decrease in the inter-molar width in both maxillary and mandibular arches. The Class II Div1 maxillary extraction group also showed significant increase in inter-canine width in both maxillary and mandibular arches. In the same group there was decrease in post treatment

Methods: This was a hospital-based cross-sectional study with two study groups. The first group included patients with Class I malocclusion, treated with four first premolar extractions and the second group included patients with Class II Div 1 malocclusion, treated with upper two first premolar extractions. The inter-canine and inter-molar width of the pre and post-treatment study model were measured. To compare the changes observed amongst two groups, independent samples t-test was performed.  A paired sample t-test was used to evaluate the treatment changes within each group.

Results: There was significant increase in inter-canine width in both maxillary and mandibular arches in both the groups. In Class I extraction group there was significant decrease in the inter-molar width in both maxillary and mandibular arches. The Class II Div1 maxillary extraction group also showed significant increase in inter-canine width in both maxillary and mandibular arches. In the same group there was decrease in post-treatment inter-molar width in both arches with significant decrease in the maxillary inter-molar width.

Conclusion: There was increase in inter-canine width in both Class I extraction group and Class II Div 1 maxillary extraction group with decrease in inter-molar width in both the groups.
BIRADS ecográfico en mujeres con o sin mastalgia
Authors: Bonilla Sepúlveda Oscar Alejandro
Published: July 2021

Introducción. La mastalgia se presenta en el 70 % de las mujeres, siendo la causa de realizar estudios de imagen, en muchos casos sin indicación. La incidencia de cáncer de seno entre las mujeres con mastalgia es del 2,5 % sin demostrar asociación entre ambas. Objetivo. Conocer la prevalencia de BIRADS (Breast imaging reporting and data system) 4-5 entre mujeres con o sin mastalgia, describir las características demográficas, clínicas, y determinar la asociación entre mastalgia y el reporte ecográfico BIRADS 4-5. Métodos. Estudio analítico transversal en 323 usuarias atendidas en la Clínica del Prado en Medellín (Colombia), entre junio y octubre de 2018. Se calculó la proporción de mastalgia y de reportes BIRADS 4-5. Se evaluaron las características demográficas y clínicas. Resultados. La prevalencia de mastalgia fue de 21,4 %, y de BIRAD 4-5 de 6,2 %. Entre las que tuvieron mastalgia, la frecuencia de BIRADS 4-5 fue 2,9 %, sin encontrar asociación estadística OR 2,5 (IC95 % 0,58 a 11,3; p: 0.2). Conclusión. Los hallazgos ecográficos sospechosos no se asociaron a mastalgia, siendo esta una indicación común de ultrasonido mamario; frecuentemente los hallazgos son normales o benignos.
WSN-BASED MONITORING SYSTEMS FOR THE SOLAR POWER STATIONS OF THE TELECOMMUNICATION DEVICES
Authors: Khasanov Doston , Khujamatov Khalimjon , Fayzullaev Bayram , Reypnazarov Ernazar
Published: July 2021

Renewable energy sources are an increasingly popular way to generate electrical energy for telecommunications systems. The use and effectiveness of remote monitoring systems in such systems has led to growing interests relatively to it. As with any new technological systems, new problems have arisen in the use of renewable energy sources in telecommunications systems and the use of IoT-based remote monitoring systems in them. In particular, one of these problems is the decentralization of remote monitoring systems for renewable power plants of telecommunication systems. The paper details the stages of development and modelling of open-source centralized monitoring systems for solar power station of telecommunication systems. In this paper, a real-time remote monitoring system of solar power sources was modelled and investigated by wireless sensor networks of telecommunications devices. Proteus software environment was obtained for modelling. Before modelling the system, a system structure and a block diagram were developed, each of the elements that are part of the system is described. Software for the system was created. The developed structure and software were tested by modelling. The results of the modelling were presented in a virtual terminal, an oscillography, and a local web browser.
ABSTRAK: Sumber tenaga boleh baharu semakin meningkat popular dalam menghasilkan tenaga elektrik bagi sistem telekomunikasi. Penggunaan dan keberkesanan sistem pemonitoran jarak jauh dalam jaringan ini telah membawa kepada peningkatan minat kepada tenaga boleh baharu. Walau bagaimanapun, melalui sistem teknologi baru ini, masalah baru timbul dalam penggunaan punca tenaga boleh baharu dalam sistem telekomunikasi dan penggunaan bersama sistem pemonitoran berdasarkan IoT. Khususnya dalam desentralisasi sistem pemonitoran jarak jauh bagi loji kuasa sistem telekomunikasi. Kajian ini merincikan peringkat pembinaan dan model sumber terbuka berpusat sistem pemonitoran bagi sistem janakuasa solar sistem telekomunikasi. Kajian ini turut memodelkan sistem pemonitoran jarak jauh secara langsung bagi sumber kuasa solar dan dikaji dengan rangkaian sensor tanpa jaringan bagi alatan telekomunikasi. Perisian Proteus telah dihasilkan bagi model ini. Sebelum model sistem dibina, struktur sistem dan gambar rajah blok dibina. Setiap unsur dalam sistem ini diperihalkan. Perisian bagi sistem ini turut dibina. Struktur yang dibina dan perisian ini diuji melalui model. Hasil dapatan model dibentangkan dalam pangkalan maya, oscilograf dan pelayar web tempatan.
ACOUSTIC WAVE PROPAGATION IN HIGH SCALE IMPEDANCE MISMATCH MEDIUMS
Authors: Awal Md Rabiul , Jusoh Muzammil , Yahya Muhammad Syarifuddin , Rahman Salisa Abdul , Dagang Ahmad Nazri , Abdul Latiff Nurul Adilah , Zakaria Hidayatul Aini , Saat Shakir
Published: July 2021

A finite element analysis of acoustic propagation in a multilayered medium is presented in this paper. A circular transmitter (diameter 14 mm, thickness 3 mm) and a rectangular receiver (20×10×0.5 mm3) are set to detect the variations in the propagation pattern. A complex medium (70×40×60 mm3) composed of skin, fat, muscle, bone and liquid is designed in a simulated environment. A scale of frequencies (10 kHz to 2 MHz) is applied to trace the impact on the propagation pattern as well. It is found from the analysis that fat and liquid layers affect the acoustic propagation the most (-69 dB), which results in a significant drop in the received sound pressure level at the receiving end. Again, other than skin and fat layers, low frequencies (less than 1 MHz) are more beneficial in terms of sound pressure level. However, higher frequencies contribute to lower displacements at the receiving end, which will cause less power potential as well.
ABSTRAK: Analisis elemen terhingga bagi penyebaran akustik dalam medium berlapis dibentangkan dalam kajian ini. Pemancar bulat (diameter 14 mm, ketebalan 3 mm) dan penerima segi empat tepat (20 × 10 × 0.5 mm3) diatur bagi mengesan perubahan pola penyebaran. Medium kompleks (70 × 40 × 60 mm3) yang terdiri daripada kulit, lemak, otot, tulang dan cecair direka dalam persekitaran simulasi. Skala frekuensi (10 kHz hingga 2 MHz) digunakan bagi mengesan corak penyebaran. Dapatan kajian menunjukkan bahawa lapisan lemak dan cecair mempengaruhi penyebaran akustik (-69 dB), yang mengakibatkan penurunan mendadak tahap penerimaan tekanan bunyi di hujung penerima. Selain lapisan kulit dan lemak, frekuensi rendah (kurang dari 1 MHz) adalah lebih berguna dari segi tahap tekanan suara. Walau bagaimanapun, frekuensi lebih tinggi menyebabkan kurang anjakan di hujung penerima, sekaligus mengurangkan potensi daya tenaga.
STUDY OF EFFECTIVE OMNI-DIRECTIONAL VERTICAL AXIS WIND TURBINE FOR LOW SPEED REGIONS
Authors: Safarov Alisher , Mamedov Rasul
Published: July 2021

This article presents theoretical and experimental studies of an improved vertical axis wind power device that generates electricity in areas with an average wind speed of 3.5-4.5 m/s. An algorithm has been developed for determining the geometrically optimal dimensions of the outer guiding surfaces to improve the efficiency of the device at low wind speeds. The device uses an AFPMG generator with opposite rotation of the stator and rotor. Matlab/Simulink and Solidworks were used to develop a mathematical and physical model of the wind power device. According to the results of the study, it was found that the developed wind power device can reach a rated power of 700 W at a wind speed of 8 m/s. The use of the device in areas with low wind speed is based on the possibility of increasing the efficiency of work by 5-10% at an average wind speed lower than that of other types of wind power devices.
ABSTRAK: Artikel ini memaparkan kajian teori dan eksperimen berkenaan alat kuasa angin paksi menegak yang diperbaharui dan menghasilkan tenaga elektrik di kawasan kelajuan angin berpurata 3.5-4.5 m/s. Algoritma telah dibangunkan bagi menentukan dimensi optimum geometri permukaan berpandu luar dalam meningkatkan kecekapan peranti pada kelajuan angin yang kurang. Peranti ini menggunakan penjana AFPMG dengan putaran stator dan rotor yang berlawanan. Matlab/Simulink dan Solidworks digunakan bagi menghasilkan model matematik dan fizikal peranti tenaga angin. Berdasarkan dapatan kajian, didapati bahawa alat tenaga angin yang dibangunkan ini dapat mencapai daya kuasa sebanyak 700 W pada kecepatan angin 8 m/s. Penggunaan alat ini di kawasan kurang kelajuan angin berkemungkinan meningkatkan efisiensi purata kerja sebanyak 5-10% pada kelajuan angin rendah, iaitu lebih rendah daripada segala jenis peranti tenaga angin lain.
EXPERIMENTAL VERIFICATION OF THREE MODE CONTROLLER FOR HOME APPLIANCE USING WIRELESS TECHNOLOGY
Authors: Abdul Wahidh Maswoodhur Rahman , Masilamani Muruganandam
Published: July 2021

An attempt is made to enhance the automation and sophistication of a home appliance. In this work, electric lamp is considered as a home appliance and it is controlled through three different modes. Technology is a never-ending process, the home automation is a well-known field of recent research, which makes the customer to reach the next level of sophistication. One such next level is presented in this article. The proposed paper is about design, experimentation and testing of three-way control for a lamp, using low cost microcontroller, Bluetooth module and android mobile application. The three modes of control are manual switch mode, Light Dependent Resistor (LDR) mode and Bluetooth based Wireless communication mode. The work is initially simulated using Proteus 8 Professional Application and then implemented as a real time working model. Also, the working performances were tested using the Simulation and developed working model.  The control in Bluetooth mode is based on an Android Application. A dedicated Android Application is developed for testing the developed working model, using MIT App Inventor.
ABSTRAK: Percubaan dibuat untuk meningkatkan automasi dan kecanggihan perkakas rumah. Dalam karya ini, lampu elektrik dianggap sebagai perkakas rumah dan ia dikendalikan melalui tiga mod yang berbeza. Teknologi adalah proses yang tidak pernah berakhir, automasi rumah adalah bidang penyelidikan baru-baru ini, yang menjadikan pelanggan mencapai tahap kecanggihan yang seterusnya. Satu tahap seterusnya ditunjukkan dalam artikel ini. Makalah yang dicadangkan adalah mengenai reka bentuk, eksperimen dan pengujian kawalan tiga arah untuk lampu, menggunakan mikrokontroler kos rendah, modul Bluetooth dan aplikasi mudah alih android. Tiga mod kawalan tersebut ialah mod suis manual, mod Perintang Bergantung Cahaya (LDR) dan mod komunikasi Tanpa Wayar berasaskan Bluetooth. Karya ini pada mulanya disimulasikan menggunakan Proteus 8 Professional Application dan kemudian dilaksanakan sebagai model kerja masa nyata. Juga, prestasi kerja diuji menggunakan Simulasi dan model kerja yang dikembangkan. Kontrol dalam mod Bluetooth didasarkan pada Aplikasi Android. Aplikasi Android khusus dikembangkan untuk menguji model kerja yang dikembangkan, menggunakan MIT App Inventor.
ANALYTICAL AND NUMERICAL THERMAL ANALYSIS ON FRICTION STIR WELDING USING POLYGONAL TOOL PIN
Authors: Joseph Leon Stephen Leon , Varghese Alfred Franklin , Michel Joseph , Gunasekaran Gopinath
Published: July 2021

Frictional heat generation in the tool/matrix interface followed by the stirring of material along the weld line causes plasticized solid state joining in friction stir welding. In this paper, the existing torque based thermo-mechanical model for the tools with cylindrical pins is remodified for the polygonal tool pin profile by introducing novel multiplication factors with respect to the number of sides in the tool pin geometry. The variation in the effective heat supply with respect to the chosen pin geometry was analyzed. A comparative analysis of the proposed analytical model with the existing model was also carried out to understand the accuracy of the proposed model.  Furthermore, a transient thermal numerical modelling was carried out in the view of understanding the change in process peak temperature in the stir zone and change in temperature gradient along the heat affected zone with respect to the change in pin geometry for the opted set of process input parameters. An analytically estimated heat-input-based numerical model was adopted in the present study. It was observed that the process peak temperature was directly proportional to the number of sides in the tool pin.
ABSTRAK: Penjanaan haba geseran antara muka pada alat/matrik diikuti dengan pengacauan material sepanjang garis kimpalan menyebabkan keadaan plastik pepejal melekat bersama geseran kimpalan pengacau. Kajian ini berkaitan tork sedia ada berdasarkan model mekanikal-terma bagi alat pin silinder yang terubah suai bagi profil pin alat poligon dengan memperkenalkan faktor gandaan berdasarkan bilangan sisi geometri alat pin. Perubahan pada bekalan haba efektif berdasarkan geometri pin pilihan telah dikaji. Analisis bandingan pada model analitik yang dicadang bersama model sedia ada, telah dilakukan bagi memahami ketepatan model cadangan. Tambahan, model transien numerikal terma telah dibuat bagi memahami proses perubahan suhu puncak ketika zon pengacauan dan perubahan gradien suhu sepanjang zon terkena haba perubahan geometri pin pada set proses parameter input terpilih. Kajian ini mengaplikasi model numerik berdasarkan input anggaran haba secara analitik. Dapatan kajian menunjukkan suhu puncak proses adalah berkadar langsung dengan bilangan sisi pin alat.
أنواع تراجم معاني القرآن الكريم والحكم عليها (Types of Translations of the Meanings of the Noble Qur’an and its Evaluation)
Authors: شاشوار هاشاني برات , منصور محمد سعد الدين
Published: July 2021

تهتم المقالة ببيان أنواع تراجم معاني القرآن الكريم إلى اللغات الأجنبية وإيضاح المنهج الذي يجوز اتباعه في الترجمة، والمنهج الذي لا يجوز. كما تركز المقالة على ذكر أقوال العلماء حول حكم ترجمة معاني القرآن الكريم إلى اللغات الأجنبية، والأدلة التي استدلوا بها. وتهدف المقالة إلى بيان مناهج ترجمة معاني القرآن الكريم إلى اللغات الأجنبية. كما تهدف إلى بيان منهج الترجمة الذي يجوز اتباعه شرعا والمنهج الذي لا يجوز شرعا ولا يمكن تحقيقه حسب الشروط والضوابط المطلوبة شرعا. ويستخدم الباحث المنهج التاريخي والمنهج المقارن. توصل البحث إلى أنّ هناك نوعين من الترجمة: الترجمة الحرفية التي لا تجوز شرعا، والترجمة المعنوية التي تجوز شرعا.
الكلمات المفتاحية: الترجمة، القرآن، الألفاظ، المعاني.
Abstract
The article is concerned with the types of translation of the meanings of the Noble Qur’an into foreign languages. It helps the researcher to understand the approach that may be followed, and the approach that may not, in such translations. The article also focuses on mentioning the opinions of scholars about the ruling on translating the meanings of the Noble Qur’an into foreign languages, and the evidence they used. The article aims to explain the methods of translating the meanings of the Noble Qur’an into foreign languages. It also aims to show the translation approach that may be legally followed. And the approach that is not legally permissible and cannot be achieved according to the conditions and controls required by sharia law. The researcher uses the historical method and the comparative method. The research found that there are two types of translation; literal translation, which is not permissible by sharia law, and the semantic translation that is permissible by sharia law.
Keywords: Translation, Qur’an, Words, Meanings.
Thermodynamic study of the thallium-thulium tellurides by EMF method
Authors:   Naghiyev Institute of Catalysis and Inorganic Chemistry, Imamaliyeva S.Z. , Mekhdiyeva I.F. ,   Naghiyev Institute of Catalysis and Inorganic Chemistry, Jafarov Y.I. ,   Baku State University, Babanly M.B. ,   Naghiyev Institute of Catalysis and Inorganic Chemistry
Published: July 2021

In this study the phase equilibria in the Tl2Te–Tl2Te3–TlTmTe2compositions area of the Tl–Tm–Te ternary system were studied by powder X-ray diffraction (PXRD) analysis. Based on PXRD data, the solid-phase equi-libria diagram was plotted. The thermodynamic functions of the Tl9TmTe6and TlTmTe2ternary compounds were calculated by the electromotive forces method. The electrochemical cells of the following type (−) TmТе (s.) | glycerol + KCl + TmCl3 | (Tm in alloys of Tl–Tm–Te system) (s.) (+) were assembled and their EMF were measured in the 300-450 Ktemperature range. Based on obtained EMF data for the Tl2Te3–TlTe–TlTmTe2and TlTe–TlTmTe2–Tl9TmTe6three-phase regions, the relative partial thermodynamic functions of TmTe in alloys were calculated. The combination of these functions with the partial molar functions of thulium in TmTe allowed calculating the corresponding partial functions of thulium in the above phase regions. The potential-forming reactions responsible for the indicated partial molar values were obtained based on con-structed solid-phase equilibria diagram. Using indicated potential-forming reactions, for the first time, the standard thermodynamic functions of formation and standard entropies of the Tl9TmTe6and TlTmTe2 compounds were calculated.
CUMULATIVE INCIDENCE OF LYMPHOID AND MYELOID LEUKEMIAS IN DIFFERENT REGIONS OF THE CHERKASSY REGION IN 2001 AND 2014
Authors: Paramonov V.V. , Dyagil І.S.
Published: July 2021

The purpose - to carry out comparison of the cumulative morbidity on the lymphoid and myeloid leukemia on relatively clean and contaminated regions of the Cherkassy region for 2001 and 2014.

Materials and methods. The incidence was determined in regions A (relatively clean), B (radioactive contaminated), C (chemically contaminated) and D (radioactive and chemical contaminated) per 100 thousand population, which was registered during the All-Ukrainian census conducted in 2001, and in 2014 according to the published data of the State Statistical Service of Ukraine.

Results. In 2001, in the radioactive contaminated region of Cherkassy oblast, there was a 2.46-fold (p = 0.024) higher incidence of myeloid leukemias alone (5.30; 3.03-8.33 vs. 2.15; 0.66-3.64 per 100 thousand population, respectively). Instead, in the area contaminated with chemical factors, the prevalence of lymphoid (acute and chronic) was determined (7.12; 1.84 - 12.39 vs. 2.69; 1.02 - 4.35 per 100 thousand population, respectively) and myeloid (6.10; 1.22 - 10.99 vs. 2.15; 0.66 - 3.64 per 100 thousand population, respectively) leukemia, compared with relatively clean regions. According to 2001 data, who living in a chemical contaminated region, the risk of cumulative morbidity for acute and chronic lymphoid and myeloid leukemias is 3.30 (p = 0.014) and 2.83 (p = 0.043), respectively.

In 2014, no increase in the level of cumulative incidence of these hematological neoplasms was detected between the clean and contaminated regions of Cherkassy oblast.

Conclusions. It was proved that the radiation factor in 2001 increased the probability of growth the cumulative incidence only for myeloid leukemias, and chemical contamination - for both myeloid and lymphoid leukemias. In 2014, there was no increase in the level of cumulative incidence of certain hematological diseases between clean and contaminated regions of Cherkasy oblast.
IMPROVEMENT OF PUBLIC ADMINISTRATION OF THE MEDICAL REHABILITATION SYSTEM AS AN INTEGRAL PART OF PUBLIC HEALTH POLICY
Authors: Nagoriyanskii A.O.
Published: July 2021

Objective of the study: to substantiate the theoretical approaches and develop priority areas for improving public administration to ensure the system of medical rehabilitation and recreation in Ukraine.

Material and methods. To achieve this goal, a set of interconnected and complementary general and special research methods was used, in particular, specific search methods (detection, selection, theoretical analysis, synthesis, updating, classification) were used to summarize regulatory, documentary, printed and electronic sources of information on public administration of the system of medical rehabilitation and sanatorium services.

Results. Theoretical principles of public administration of the medical rehabilitation system are investigated. The current state of medical rehabilitation and sanatorium treatment in the health care system of Ukraine is analyzed, namely: regulatory and legal support of medical rehabilitation and sanatorium treatment in the health care system of Ukraine. The priority directions of improvement of the state administration concerning maintenance of system of medical rehabilitation and recreation in Ukraine are substantiated and the ways of improvement of the state management of system of medical rehabilitation as a component of the state policy in the field of public health services are offered.

Findings. Support for the development of sanatorium-resort activities should be carried out using the methodology of program-targeted management, which provides for the development and adoption of comprehensive programs aimed at implementing specific measures to develop resort potential, improve quality and efficiency of sanatorium-resort services, strengthen the material and technical base of resort management at the level of the state and regions.
Effect of Temperature on Gas and Liquid Products Distribution in Thermal Cracking of Nigerian Bitumen
Authors: OLAREMU ABIMBOLA GEORGE , ODEBUNMI Ezekiel Oluyemi , ANDERSON Jim A
Published: July 2021

The increasing population growth resulting in the tremendous increase in consumption of fuels, energy, and petrochemical products and coupled with the depletion in conventional crude oil reserves and production make it imperative for Nigeria to explore her bitumen reserves so as to meet her energy and petrochemicals needs. Samples of Agbabu bitumen were subjected to thermal cracking in a tubular steel reactor operated at 10 bar pressure to investigate the effect of temperature on the cracking reaction. The gas produced was analyzed in a Gas Chromatograph while the liquid products were subjected to Gas Chromatography-Mass Spectrometry (GC-MS) analysis. Heptane was the dominant gas produced in bitumen cracking at all temperatures and the reaction products show a distribution of lighter hydrocarbons most of which are in the gasoline range. The product distribution of bitumen conversion depends strongly on the cracking temperature and the oil produced contains the valuable liquid fractions. The products of thermal cracking of bitumen can be classified into the following groups; alkanes, alkenes, amines, aromatics, alkanoic acids, alkanols, esters, ethers, ketones, sulphur compounds, and nitrogen compounds. The activation energies of the products formed were determined. The LNG produced all have unusually low values activation energy (hence easily converted) pointing to the high quality of Agbabu crude  

   The conversion process was affected by the reaction time and suggests that the transformation of bitumen into smaller fractions follows a definite reaction scheme in which the heavy oil transformed to lower fractions and was subsequently converted to smaller liquid fractions and gases.
Evaluation of the Professional Development Program in Digital Material Design According to the Kirkpatrick’s Model
Authors: Göçen Kabaran Güler , Uşun Salih
Published: July 2021

Today's developments have revealed the necessity of using digital materials in educational environments. The digital material design competencies of the teachers on this subject are essential. In this context, it is necessary to develop and evaluate a professional development program. The purpose of the current study is an evaluation of the professional development program developed for the digital material design according to Kirkpatrick’s Model. In the current study, a digital materials design professional development program consisting of 10 modules and 21 subjects was developed. Kirkpatrick’s Program Evaluation Model was used in the evaluation of the program. In this context, teachers' reactions to the program, their learning levels, their ability to transfer the knowledge they have acquired to the classroom environment, and the target audience's opinions on the practices were determined. “The Digital Materials Design Competences Scale” and "The Scale of Self-Efficacy Perception of Technology Integration" was used to collect quantitative data. Interviews and the observation technique were used to collect qualitative data. According to the findings, it was determined that the teachers expressed positive opinions about the program and that they were satisfied with the program. It was concluded that after the professional development program, the teachers' digital material design competencies and their self-efficacy perceptions of the integration of technology developed. The follow-up evaluation study determined that teachers could transfer the knowledge and skills they gained in the professional development program to the actual classroom environment, and students expressed positive opinions about these practices.
Experimental Study of Vertical Axis Wind Turbine Performance under Vibration
Authors: Sarkar Md Rasel , Julai Sabariah , Nahar Mst Jesmin , Uddin Moslem , Rahman Mahmudur , Tanshen Md. Riyad
Published: July 2021

An experimental study was conducted to study the effects of flow uniformity on vibration and power generation of a small vertical axis wind turbine (VAWT). Previous studies have confirmed that one of the sources of vibration in the turbine is due to aerodynamic forces, which are due to incident wind. Firstly, understanding vibration is essential before proceeding to the measurements. In this experiment, further understand the vibrations of the turbine in operation, the operating deflection shape (ODS) technique was used. A wind tunnel and flow conditioner were fabricated. Experimental modal analysis (EMA) was conducted, and the dynamic characteristics are gathered. The ODS was conducted for operating the turbine at different speeds, with and without the flow conditioner. Results from EMA and ODS are correlated to explain the behavior of structures. In conclusion, the flow conditioner tested did have a big impact on the response of the structure in terms of vibration up to 30% indifference, but not so much in power generated about 2% indifference.