bluuebunny/crossref_metadata_2025_split huggingface dataset:
MENINGKATKAN MOTIVASI BELAJAR PESERTA DIDIK DENGAN BIMBINGAN KLASIKAL METODE PROBLEM BASED LEARNING SMP NEGERI 1 ASTAMBUL
Authors: Riyadi Akhmad 
Published: August 2021

Peserta didik hendaknya memiliki kemampuan motivasi belajar yang tinggi sehingga senantiasa memiliki dorongan dan semangat dalam mengikuti proses belajar dan mencapai tujuan pembelajaran yang diharapkan. Layanan bimbingan klasikal melalui metode problem based learning bertujuan untuk meningkatkan motivasi dalam mengikuti pembelajaran. Partisipan dalam kegiatan ini adalah peserta didik kelas VIII C SMP Negeri 1 Astambul dengan jumlah 24 orang. Kegiatan layanan dilakukan melalui tiga tahap yakni tahap awal, tahap inti, dan tahap penutup.
KENAKALAN REMAJA DI SMP KRISTEN BOMBANO
Authors: Saliani Periance 
Published: August 2021

Penelitian ini menuliskan tentang penyebab-penyebab dari kenakalan remaja. Tujuan dari penelitian untuk mengurangi tingkat kenakalan remaja serta dapat merumuskan rekomendasi yang tepat. Jenis penelitian ini merupakan penelitian deskriptif kualitatif. Penelitian ini berjenis penelitian studi kasus dengan subjek tunggal. Studi kasus adalah suatu studi yang mendalam tentang individu dan berjangka waktu relatif lama, terus menerus, artinya kasus dialami oleh satu orang. Subjek penelitian ini adalah remaja yang memenuhi kriteria kenakalan remaja. Jumlah subjek dalam penelitian ini adalah 1 orang, alasan hanya menggunakan 1 orang subjek, yaitu agar dapat melakukan penelitian secara mendalam serta fokus penelitian tidak terbagi oleh subjek lain. Metode penelitian yang diutamakan dalam penelitian ini adalah metode wawancara, observasi. Hasil penelitian ini menghasilkan beberapa penyebab dari kenakalan remaja yaitu kondisi keluarga yang berantakan membuat subjek menjadi remaja yang kurang diperhatikan oleh orang tuanya, status sosio ekonomi keluarga menjadi peyebab kenakalan subjek, pengaruh teman bermain juga berpengaruh terhadap kenakalan remaja, sering keluar rumah pada malam hari, serta pola pemikiran subjek pada saat dan setelah melakukan kenakalan remaja adalah kepuasan dan kebanggaan baginya.
Transfer Pengetahuan di Perpustakaan Kementerian Hukum dan Hak Asasi Manusia Republik Indonesia
Authors: Ragili Bumi Achmad , Winoto Yunus , Yanto Andri 
Published: August 2021

Penelitian ini bertujuan untuk mengetahui bagaimana proses transfer pengetahuan yang ada di Perpustakaan Kementerian Hukum dan Hak Asasi Manusia. Metode yang digunakan dalam penelitian ini adalah kualitatif yang diperoleh dari hasil wawancara, observasi, dan studi dokumentasi. Pendekatan studi kasus yang digunakan dalam penelitian ini adalah untuk melihat kejadian sebenarnya dari aktivitas pustakawan. Hasil dari penelitian ini menunjukan bahwa proses sosialisasi di Perpustakaan Kemenkumham terjadi melalui diskusi pustakawan dan pimpinan. Proses eksternalisasi dilakukan melalui kegiatan pustakawan yang dituangkan ke dalam bentuk baru. Proses kombinasi dilakukan dengan mengumpulkan, mentransfer atau menyebarkan, dan mengolah informasi maupun pengetahuan yang diperoleh dari tahap eksternalisasi ke dalam laporan tahunan. Proses internalisasi di Perpustakaan Kemenkumham belum optimal dilakukan dikarenakan pustakawan masih berfokus pada kegiatan pengolahan perpustakaan. Namun dalam hal ini, dokumen laporan tersebut dapat menjadi pengetahuan baru bagi pustakawan maupun organisasi. Hambatan yang ada di Perpustakaan Kementerian Hukum dan Hak Asasi Manusia yaitu pada sumber daya manusia dan anggaran untuk kegiatan perpustakaan seperti workshop maupun pelatihan yang dapat menjadi media promosi perpustakaan. Transfer pengetahuan di Perpustakaan Kementerian Hukum dan Hak Asasi Manusia dilakukan melalui sosialisasi, eksternalisasi, kombinasi, dan internalisasi.ABSTRACTThis paper aims to know how the knowledge transfer process runs in the Library of Ministry of Law and Human Rights. The method used in this paper is qualitative research were taken through interviews, observation and documentation studies. A case study approach is used on this paper by seeing reality from librarian activites. The results of this paper indicate that socialization in the Kemenkumham Library occurs through discussion of librarians and the leaders. Externalization is carried out through librarian activities which are poured into new forms. Combination is done by collecting, transferring or disseminating, and processing information and knowledge obtained from the externalization stage into the annual report. Internalization has not yet been optimized because librarians are still focusing on library processing activities. Moreover, the report documents can become new knowledges for librarians and organizations. The existing obstacles in knowledge transfer process in Kemenkumham Library are in human resources and the budget for library activities such as holding workshops and training activities that can be a media for library promotion. Knowledge Transfer in the Library of the Ministry of Law and Human Rights are carried out through a process of socialization, externalization, combination, and internalization. Keyword: Knowledge Management; Knowledge Transfer; Employee, Kemenkumham
Book Reviews
Authors: Fyanka Bernard B. , Obika Julaina A. 
Published: August 2021

Law and Disorder: Sovereignty, Protest, Atmosphere By Illan rua Wall. Routledge Taylor and Francis Group, 2021. 209pp. E-Book. ISBN: 978-0-429-33042-1.Secrecy and Responsibility in the Era of an Epidemic: Letters from Uganda By Hanne Mogensen. London: Palgrave Macmillian, 2020. 246 pp. ISBN 978-3-030-47522-2. ISBN 978-3-030-47523-9 (e-Book).
Pengaruh Parameter Proses Milling pada Austempered Ductile Iron (ADI) Terhadap Kekasaran Permukaan Benda Kerja dan Chip Thickness Ratio
Authors: Rusnaldy Rusnaldy , Umardani Yusuf , Putra Diva Tsamara , Bernard Jovian 
Published: August 2021

<p><em>Austempered ductile iron (ADI) is a difficult material for machining, </em><em>even though ADI is believed to have several advantages such as strength, ductility, high toughness, fatigue resistance, good dynamic wear resistance, has a good strength-to-weight ratio, easy to manufacture and easy to cast that causes it to be widely used in various applications. </em><em>This study investigates the effect of milling parameters on surface rougness and chip thickness ratio on milling of ADI. To produce ADI, ductile irons were first austenitized in furnace at 900<sup>o</sup>C for 1 hour and then they were quenched in salt bath at 375<sup>o</sup>C for 1 hour. The work material was machined with uncoated carbide tool. The tool was 20 mm in diameter. The cutting experiments were carried out in the dry mode. The feed was varied from 0.05 to 0.1 mm/tooth for cutting speed ranging from 15 m/min to 25 mm/min and depth of cut ranging from 0.1 mm to 0.3 mm. The surface roughness was measured using the Mitutoyo SJ-201, surface roughness machine. The chip thickness was measured using software Image J from the photograph produced by digital microscope endoscope. The results show that connected and loose chips were produced. Long and continuous chips were not found in this study. The effects of cutting speeds, feeds and depth of cut on surface roughness and chip thickness ratio are reported in this paper</em><em></em></p>
Pengaruh Variasi Kecepatan Pengadukan dengan Penambahan Perlakuan Panas Lapisan Electroless Ni-P terhadap Laju Korosi dan Kekerasan Permukaan Baja Karbon Rendah ASTM A36
Authors: Saefuloh Iman , Zakaria Zakaria , Rohmat Agus , Lusiani Rina , Jannah Miftahul , Sunardi Sunardi , Setiawan Ipick 
Published: August 2021

Tujuan penelitian adalah menganalisa pengaruh kecepatan putar pengadukan dan <em>treatment</em> temperatur proses <em>electroless </em>pada baja karbon rendah ASTM A36 terhadap kualitas lapisan permukaan berdasarkan nilai ketahanan terhadap korosi dan nilai kekerasan serta morfologi permukaan. Penelitian dilakukan dengan memvariasikan. kecepatan pengadukan yang digunakan antara lain 250,300, dan 350 rpm, dan proses treatment temperatur 500 sengan waktu 120 menit. Hasil yang diperoleh menunjukkan bahwa kenaikan kecepatan pengadukan menghasilkan ketahanan korosi yang kurang baik dimana laju korosi tertinggi mencapai nilai 7.123 mm/year. namun nilai ketahanan terhadap korosi semakin membaik ketika diberi perlakuan panas. Nilai laju korosi terendah terdapat pada kecepatan 250 rpm yaitu 1.212 mil/year. Untuk nilai kekerasan dihasilkan hubungan semakin besar kecepatan putaran pengadukan semakin meningkat nilai kekerasannya. Namun bila dibandingkan nilai kekerasan hasil proses perlakuan temperatur dan non perlakuan maka nilai kekerasan terbaik dimiliki oleh proses perlakuan temperatur
The Effectiveness of Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration in Patients With Undiagnosed Lung Cancer
Authors: Gül Şule , Niksarlıoğlu Elif Yelda , Yeter Ayşe 
Published: August 2021

Objectives: Conventional bronchoscopic techniques and computed tomography-guided transthoracic needle aspiration are widely used in the diagnosis of lung cancer. In some patients diagnosis can be challenging. Endobronchial ultrasound-guided transbronchial needle aspiration can be used in the diagnosis of lung cancer after procedures have failed to provide a diagnosis. We aimed to show the effectiveness of Endobronchial ultrasound-guided transbronchial needle aspiration in the diagnosis of lung cancer in view of the literature and to share the experience from Turkey.
Material and Methods: This was a retrospective study conducted between 2014 and 2019. Forty-five patients who were suspected of having lung cancer and underwent Endobronchial ultrasound because diagnosis was not confirmed using methods such as bronchoscopy, computed tomography transthoracic needle aspiration, and peripheral lymph node excision, were included in the study.
Results: Three hundred sixty-eight Endobronchial ultrasound procedures were performed. Forty-five patients met the inclusion criteria and were included in the study. Using Endobronchial ultrasound, samples were taken from only mass in eight patients (17.8%), lymph nodes in 30 patients (66.7%), and mass + lymph node in seven (15.5%) patients. Minor complications were seen in five (11.1%) patients and no major complications were seen. Definitive diagnosis was obtained in 35 (77.7%) patients with Endobronchial ultrasound guided transbronchial needle aspiration. Non-small cell lung cancer was identified in 16 patients (45.7%), small cell lung cancer was seen in 15 (42.8%) patients. Seven of ten undiagnosed patients underwent surgical procedures.
Conclusion: Endobronchial ultrasound, is an effective and safe method for diagnosing lung cancer after undiagnosed procedures. In selected cases, it can be the first choice for the diagnosis of lung cancer.
Экспериментально-расчетное определение механических свойств материала рабочих лопаток ГТД
Authors: Ткач Михаил Романович , Кулишов Сергей Борисович , Полищук Виталий Анатольевич , Ключник Владимир Сергеевич , Золотой Юрий Григорьевич , Жук Ирина Юрьевна , Проскурин Аркадий Юрьевич , Галынкин Юрий Николаевич 
Published: August 2021

A schematic description of a stand based on a digital speckle interferometer with a diffuse reference wave is given, which makes it possible to determine the natural frequencies and vibration modes of the blades in real-time. In the frequency range of 100 ... 3000 Hz, an experimental study of the vibration characteristics of a turbine rotor blade of a gas turbine engine was carried out, under free boundary conditions, which were achieved by placing the blade on soft silicone racks. Blade dimensions: height along the trailing edge - 288 mm, a chord in the middle section - 88.5 mm. 7 modes of vibrations have been identified. The technology of creating a solid-state geometric model of a rotor blade based on a faceted body obtained by 3D scanning with an accuracy of 0.01 mm is presented. The finite element method, using the Lagrange variation principle, is used to calculate the values of natural frequencies and vibration modes of a blade based on the developed geometric model. Concerning the frequency range 100 ... 3000 Hz, using the Ansys Workbench software package, a series of calculations of the resonant frequencies of the blade, by the finite element method, in the range of variation of the values of mechanical properties was carried out: Young's modulus E = 200 ... 230 GPa; Poisson's ratio μ = 0.26 ... 0.3. The density of the material: ρ = 7830 kg / m³, determined experimentally, by the method of hydrostatic weighing. The final element used in the calculation is (tetrahedron) SOLID 187; the minimum element size is 0.6 mm. The total number of elements is about 1.5 ∙ 10⁶. Based on the two-dimensional spline interpolation of the calculated data, the dependence of the standard deviation of the calculated and experimental values on the adopted mechanical properties of the material of the rotor blade is built. In the range of values E = 215 ... 217 GPa and μ = 0.295 ... 0.3, the minimum standard deviation of the calculated frequencies from their experimental values is 0.73%. Provided the value of the standard deviation of frequencies is 1%, the range of values of mechanical properties will be: E = 211 ... 220 GPa and μ = 0.26 ... 0.3. It is shown that narrowing the studied range of values of Young's modulus and Poisson's ratio does not significantly affect the results obtained.
Влияние микролегирования иттрием и гафнием на прочностные характеристики и морфологию карбидной фазы сплава ЖС3ДК-ВИ при замедленной кристаллизации
Authors: Тихомирова Татьяна Владимировна , Гордиенко Елена Ивановна , Бехтер Руслан Васильевич , Подобный Александр Витальевич 
Published: August 2021

There are analyzed the melts of the ZhS3DK-VI alloy with different levels of strength characteristics and the factors influencing their reduction, differences in the macro and microstructure of the alloy, the effect of the crystallization rate when pouring the melt into hot and cold ceramic molds are determined. Since when casting parts, the level of properties is determined on separately cast samples, in the technology of manufacturing samples, the casting parameters of the corresponding part must be observed, and when increasing the strength characteristics due to changing technological parameters, it is imperative to consider the possibility of changing the technology of casting parts. However, for parts of complex configuration, cast from heat-resistant nickel alloys, it is often impossible to change the technology, therefore the only way to influence the properties of the material is to use microalloying with rare earth elements, for example, yttrium and hafnium. The introduction of these alloying elements in small amounts has a positive effect on factors that reduce the properties of the ZhS3DK-VI alloy, such as the unfavorable shape and topography of the carbide phase, or even slightly change the chemical composition of carbides. The article analyzes the effect of microalloying with hafnium and yttrium on the morphology and topography of the carbide phase; positive changes in the microstructure and strength characteristics at room temperature of the heat-resistant nickel alloy ZhS3DK-VI are noted. The technology of microalloying the melt has been developed to obtain satisfactory valuesof strength characteristics in tensile tests and impact toughness at room temperature. Microalloying the ZhS3DK-VI alloy with hafnium in a concentration of 0.15...0.25 % made it possible to increase the strength characteristics on samples for mechanical tests by 10…15 %, provided that the melt was drained into hot ceramic molds and slowed down. Higher concentrations of hafnium during slow crystallization lead to the formation of eutectic phases uncharacteristic for the ZhS3DK-VI alloy, requiring a decrease in the heat treatment temperature, which, accordingly, leads to a decrease in the level of long-term strength at 850 °C.
Applications of neural networks for crack initiation and propagation monitoring in aircraft structures
Authors: Бурау Надія Іванівна , Юцкевич Святослав Сергійович , Компанець Андрій Ігорович 
Published: August 2021

Timely detection of fatigue cracks on aircraft structural elements is the main task in damage tolerance principle approach. In this regard, much attention in aviation is paid to the methods of non-destructive testing which requires special equipment with the involvement of highly qualified personnel. Nowadays we can see that technologies that can learn to identify defects are preferred to simplify the gap process and minimize human factor errors. A self-learning technology is incorporated in the crack detection program. This makes it possible to increase the sensitivity of defects in the mode of the used technically false equipment. Unlike the detection methods of other machine learning detection systems, the system developed in this paper can also measure the cracks without the use of sophisticated sensors. However, the proposed system requires a photo-capturing device. Compared to similar visual systems, the developed system can work with very noisy images and detect cracks up to 0.3 mm. To do this, the webcam from the mid-range segment with 1920×1080 resolutions is used, that makes such technology easy to access. All modifications in the design of the camera scheme were associated with a change in the focal length, implemented by shifting the lens relative to the matrix. It allows the camera to focus on close distance less than 50 cm. For the fatigue tests compact specimens of duralumin alloy D16T with edge stress concentrator were used. The specimens were cycle tested by cantilever banding with stress ratio R=-1. Loading bogie apply force to specimens in direction normal to specimen surface. A loading value depends on the length of the loading crank and can be adjusted if needed. To measure cracks in the processed images, a visual control program on a convolutional neural network and a sliding window algorithm were used. About 4,000 images were used to train the algorithm. The sliding window algorithm analyzes small images sequentially. One by one, image regions were selected and monitored for cracks using a convolutional neural network. Areas with detected cracks are memorized by the sliding window algorithm.
PENGARUH JENIS ELEKTRODA TERHADAP POWER DENSITY PADA MICROBIAL FUEL CELL DENGAN PENAMBAHAN GRANULAR ACTIVATED CARBON
Authors: Safitri Vidia Wahyu Meidy , Rachmanto Tuhu Agung 
Published: August 2021

ABSTRAK
Limbah cair tahu mengandung kandungan organik tinggi dengan konsentrasi COD 1408 mg/l, TSS 191 mg/l dan pH 4,46. Salah satu penelitian dengan pemanfaatan limbah dan energi yaitu Microbial Fuel cell (MFC). Energi Kimia senyawa organik dari mikroorganisme akan dirubah menjadi energi listrik dengan reaksi katalik dari mikroorganisme dalam keadaan anaerob merupakan proses microbial fuel cells. Salah satu tantangan untuk mengembangkan sistem MFC adalah dengan memilih elektroda yang tepat. Elektroda yang digunakan harus memiliki daya konduktifitas listrik tinggi, pemukaan yang luas, non korosif, biokompatibel, stabil. Penelitian ini bertujuan untuk memgetahui jenis elektroda optimum dalam menghasilkan power density dengan variasi elektroda karbon grafit, seng dan tembaga, variasi waktu 0, 48, 96, 144, dan 192 jam. Dilakukan pre-treatment koagulasi flokulasi. Hasil penelitian menunjukkan bahwa MFC dengan elektroda karbon grafit dan karbon grafit menghaslikan power density sebesar 2292,994 mW/m2. MFC juga menurunkan konsentrasi COD hingga 88%. Waktu pengolahan dapat mempengaruhi efisiensi penyisihan COD.

Kata kunci: limbah tahu, microbial fuel cell, power density

ABSTRACT

Tofu liquid waste contains high organic content with a COD concentration of 1408 mg / l, TSS 191 mg / l and pH 4.46. One of the researches related to waste and energy utilization is Microbial Fuel cell (MFC). Chemical energy organic compounds from microorganism will be converted into electrical energy by the catalytic reaction of microorganism in anaerobic conditions is a process of microbial fuel cells. One of the challenges to developing an MFC system is to choose the right electrodes. The electrodes used must have high electrical conductivity, a wide surface, non-corrosive, biocompatible, stable. This study aims to find out the most optimum type of electrode in producing power density with variations of carbon graphite, zinc and copper, variations of 0, 48, 96, 144, and 192 hours. The pre-treatment are Coagulation-flocculation. The results showed that MFC with carbon graphite and carbon graphite electrodes produced a power density of 2292,994 mW/m2. MFC also reduces COD concentrations up to 88%. Processing time can affect the efficiency of COD removal.

Keywords: Tofu Liquid Waste, Microbial Fuel Cells, power density
PENGARUH PENAMBAHAN IMPELLER PADA FASE AEROBIK TERHADAP EFISIENSI KINERJA SEQUENCING BATCH REACTOR PADA LIMBAH CAIR INDUSTRI TAHU
Authors: Yadaturrahmah Irma Ilham , Hendrasarie Novirina 
Published: August 2021

Saat ini usaha industri tahu sedang berkembang. Limbah yang dihasilkan dari industri tahu akan menjadi suatu permasalahan bagi lingkungan. Pengolahan air limbah industri tahu dapat dilakukan dengan cara pengolahan biologis karena dapat menurunkan kandungan organik pada air limbah tahu. Salah satu teknologi pengolahan limbah yang efektif dan efisien adalah Sequencing Batch Reactor (SBR). Prinsip operasi SBR adalah mengisi dan menarik (fill and draw), yang terdiri dari lima tahap yaitu pengisian (fill), reaksi (reaction), pengendapan (settle), pembuangan air olahan (decand) dan pembuangan lumpur (idle). SBR dioperasikan dengan waktu retensi hidrolik (HRT) dan kecepatan pengadukan yang bervariasi, yaitu masing-masing sebesar 24, 36 jam dan 48 jam serta kecepatan pengadukan sebesar 50, 100 dan 150 rpm. Dari hasil penelitian didapatkan HRT dan kecepatan pengadukan optimum, yaitu masing-masing sebesar 48 jam dan 150 rpm. Dengan efisiensi penyisihan BOD, PO4 dan N Total yang dihasilkan, masing-masing sebesar 93,33%, 90,97% dan 93,73%.
HUBUNGAN POLA KONSUMSI MAKANAN TINGGI PURIN TERHADAP KEKAMBUHAN GOUT ARTRITIS DI POLI KLINIK PENYAKIT DALAM RS PERTAMEDIKA UMMI ROSNATI BANDA ACEH
Authors: Ansyarullah Alfina , Cahyady Edy , Zurriyani Zurriyani 
Published: August 2021

.Penyakit gout merupakan penyakit degeneratif yang sangat mengganggu kualitas hidup. Jumlah pasien gout cenderung meningkat dan kebanyakan tergolong pada kelompok usia produktif. Jenis dan jumlah makanan dapat menjadi salah satu penyebab terdiagnosis gout.Konsumsi makanan tinggi purin merupakan salah satu faktor resiko terhadap kekambuhan gout artritis.Metode penelitian ini merupakan penelitian kuantitatif dengan menggunakan metode observasional analitik dan pendekatan secara cross sectional dengan sampel yang terdiri dari 35 responden. Teknik pemilihan sampel menggunakan total sampling dengan alat pengumpul data berupa kuesioner pola makanan tinggi purin dan frekuensi kekambuhan nyeri. Analisis data menggunakan uji chi square. Hasil dari hasil penelitian didapatkan 6 orang(17,14%) yang memiliki pola makan baik dan jarang mengalami kekambuhan gout artritis. Dari 29 orang (82,9%) yang memiliki pola makan buruk, 8 responden ( 22,85%) mengalami jarang kekambuhan nyeri dan 21 responden (60,01%) sering mengalami kekambuhan. Dari hasil analisis data didapatkan nilai P value = 0,005 (α=0,05) yang berarti Ho ditolak dan Ha diterima. Hal ini menunjukan bahwa ada hubungan antara konsumsi makanan tinggi purin dengan kekambuhan gout artritis. Kesimpulan hasil penelitian mengindikasikan pentingnya edukasi tentang pengaturan pola makanan tinggi purin yang baik terhadap pasien gout untuk mencegah terjadinya kekambuhan gout artritis.