bluuebunny/crossref_metadata_2025_split huggingface dataset:
Microstructure and Notched Fracture Resistance of 0.56% C Steels After Simulated Induction Hardening
Authors: Cryderman Robert , Speer John 
Published: March 2024

Abstract
Historically, steels with carbon contents above about 0.45% C that are quenched to attain hardness above about 53 HRC (560 HV) are prone to premature brittle fracture when stressed in uniaxial or cyclic tension. In this study, five laboratory melted steels containing nominally 0.56% C and no grain refining additions (Ti, Al, V, or Nb) were heat treated on a Gleeble 3500 simulator to emulate thermal heating and quenching cycles for induction hardening. Limiting the peak heating temperatures and times produced very fine grained austenite with final hardness above 60HRC (700HV). Fracture resistance measured by the peak breaking load in notched bend tests increased by up to 3 fold for the short low temperature heating cycles as compared to longer higher temperature cycles. Fracture surfaces showed trans-granular crack propagation for the short low temperature cycles as compared to inter-granular propagation for the longer higher temperature cycles.
Development of Thermal Spray Coating Solution for Ceramic Substrates
Authors: Toma F.-L. , Berger L.-M. , Hoffmann T. , Klotzbach U. , Scheitz S. , Thiele S. , Fries M. 
Published: March 2024

Abstract
This work assesses the challenges of preparing dense technical ceramic substrates for thermal spraying and evaluates the capabilities of laser ablation in comparison with sandblasting. Sintered Si3N4 and AlN substrates were prepared by both methods and surface roughness was measured before and after treatment. Alumina coatings were deposited by suspension-HVOF and atmospheric plasma spraying, and coating cross-sections were analyzed by optical microscopy and SEM. Sandblasting had little or no effect on surface roughness and cracks were observed in coating cross-sections at the near-surface region of the substrate. Laser ablation, on the other hand, significantly increased surface roughness for both ceramics, producing hole patterns that are shown to vary with laser power and pulse timing. In the case of plasma spraying, the best coatings were achieved when the holes in the substrate were less than 100 µm in depth. With suspension sprayed coatings, the best results were obtained on substrates with deeper (&gt; 100 µm) holes.
Characterization of Cold-Sprayed Copper Coatings with New Evaluation Parameter of EBSD Method
Authors: Watanabe Yusuke , Ichikawa Yuji , Nonaka Isamu , Miura Hideo 
Published: March 2024

Abstract
This study investigates a new evaluation method that has the potential to differentiate between particle interfaces and grain boundaries in cold spray coatings. The method uses confidence index (CI) and image quality (IQ) values obtained from EBSD analysis to determine the location of grain boundaries as well as grain orientation and crystallinity of the deposit. In the case of a cold-sprayed copper deposit, the new method helps to explain the observed characteristics of the coating.
The Effect of Shock-Induced Plastic Deformation on Alumina Deposition during Vacuum Kinetic Spraying
Authors: Park Hyungkwon , Cao Fei , Kwon Juhyuk , Lee Changhee 
Published: March 2024

Abstract
This work investigates the role of shock-induced plasticity in vacuum kinetic spraying. Alumina powder with an average diameter of 300 nm was deposited on glass and alumina substrates and the resulting coatings were examined. Finite-element simulations were performed to analyze the dynamic impact behavior of the submicron-sized particles and the results were compared with SEM and TEM images. Above a threshold velocity, the ceramic particles undergo not only shock-induced plasticity but also fragmentation with no bounce-off. With increasing particle velocity up to 500 m/s, the ratio of plastic deformation to fracture gradually increases with plasticity generally occurring in the substrate and the upper part of the particle. Beyond 500 m/s, the plastic portion decreased while the fractured portion abruptly increased. Fragment scattering and surface erosion, however, caused a reduction in the growth rate of the coating.
Investigation and Characterization of HVAF WC-Co-Cr Coatings and Comparison to Galvanic Hard Chrome Coatings
Authors: Bobzin K. , Kopp N. , Warda T. , Schäfer M. , Verstak A. 
Published: March 2024

Abstract
In this study, WC-CoCr coatings are deposited on grit-blasted steel substrates by high-velocity airfuel (HVAF) spraying. A cross-sectional image of the feedstock powder shows that the WC grains are evenly distributed in the Co-Cr matrix. As-sprayed coating cross-sections are examined under different levels of magnification, coating hardness is measured, and coating and powder phases are analyzed by XRD. In addition, the corrosion behavior of coated and uncoated substrates is analyzed and compared with a reference hard chrome coating.
A Numerical Investigation: Influence of the Operating Gas on the Flow Characteristics of a Three-Cathode Air Plasma Spraying System
Authors: Bobzin K. , Kopp N. , Warda T. , Schäfer M. , Öte M. 
Published: March 2024

Abstract
This study investigates the effect of gas composition on the flow characteristics of a three-cathode air plasma torch. A numerical model that couples fluid dynamic, electromagnetic, and thermal relationships is used to simulate temperature and velocity fields at the outlet of the torch. Different gases, including argon, nitrogen, and hydrogen, and gas mixtures are examined in the context of the study. The results show that the use of N2 or H2 as a secondary gas improves the output power and efficiency of the torch.
Development of Low Power Plasma Spray Process Using Atmospheric Pressure Microwave Plasma
Authors: Yasui T. , Redza A. , Fukumoto M. 
Published: March 2024

Abstract
In this study, atmospheric pressure microwave plasma spraying is evaluated as a potential coating process for heat susceptible materials. The work was carried out using an experimental setup consisting of a 2.45 GHz microwave generator and a modified plasma torch. To characterize the spraying process, investigators measured plasma temperature, plume shape, and particle velocities for different gas flow rates, nozzle diameters, and spray distances and correlated the results with the flattening behavior of particles as captured in SEM images. Spray trials were then conducted to optimize the deposition of hard chrome on carbon-fiber reinforced polymer substrates and TiO2 powder on stainless steel. In both cases, the coatings were successfully applied; the former by decreasing the nozzle diameter, the latter by reducing heat input to spray particles.
Intersectional Barriers Faced by Urban Somali Refugee Girls in Uganda
Authors: Kagan Manya , Nakatudde Winnie 
Published: March 2024

Abstract
We based this article on a qualitative study that focuses on barriers to the integration of Somali Muslim urban refugee girls in Uganda. We were interested in how different ethnic and gender identities influence Somali refugee girls’ access to education and participation in society. Based on 75 semi-structured interviews with refugee children between 10 and 16 years of age in Kampala, we used constant comparative analysis to explore the intersectional experiences of Somali refugee girls. We found that they face specific gender-based discrimination and temporal and spatial restraints. This plays a key role in their ability to integrate into society. We conclude that it is important to avoid homogenizing refugee children's experiences and to incorporate intersectional analysis in studying integration.
PENGARUH BEBAN KERJA, STRES KERJA DAN MOTIVASI TERHADAP PRODUKTIVITAS KARYAWAN BCG PADA HEAD OFFICE DI JAKARTA
Authors: Ayuningtyas Oktarifany Citra , Pradiani Theresia , Fathorrahman Fathorrahman 
Published: March 2024

Keberhasilan suatu organisasi bergantung pada kemampuannya untuk mengelola berbagai macam sumber daya yang dimilikinya, salah satu yang sangat penting yaitu Sumber Daya manusia (SDM). SDM merupakan aset berharga bagi perusahaan atau organisasi bisnis karena merupakan poros utama dalam melakukan tindakan, menetukan tujuan, serta pengambilan keputusan yang tepat untuk mencapai tujuan yang diharapkan. Dikarenanakan pentingnya SDM pada suatu Perusahaan, peneilitian dilakukan untuk mengetahui pengaruh beban kerja, stress kerja, dan motivasi kerja terhadap produktivitas karyawan BCG. Metode pada penelitian ini dilakukan dengan deskriptif kuantitatif dengan jumlah sampel sebesar 55 responden. Hasilnya terdapat pengaruh signifikan antara beban kerja, motivasi kerja, dan stress kerja terhadap produktivitas karyawan BCG baik secara simultan dan parsial.
Predicting the error magnitude in patient-specific QA during radiotherapy based on ResNet
Authors: Huang Ying , Pi Yifei , Ma Kui , Miao Xiaojuan , Fu Sichao , Feng Aihui , Duan Yanhua , Kong Qing , Zhuo Weihai , Xu Zhiyong 
Published: March 2024

BACKGROUND: The error magnitude is closely related to patient-specific dosimetry and plays an important role in evaluating the delivery of the radiotherapy plan in QA. No previous study has investigated the feasibility of deep learning to predict error magnitude. OBJECTIVE: The purpose of this study was to predict the error magnitude of different delivery error types in radiotherapy based on ResNet. METHODS: A total of 34 chest cancer plans (172 fields) of intensity-modulated radiation therapy (IMRT) from Eclipse were selected, of which 30 plans (151 fields) were used for model training and validation, and 4 plans including 21 fields were used for external testing. The collimator misalignment (COLL), monitor unit variation (MU), random multi-leaf collimator shift (MLCR), and systematic MLC shift (MLCS) were introduced. These dose distributions of portal dose predictions for the original plans were defined as the reference dose distribution (RDD), while those for the error-introduced plans were defined as the error-introduced dose distribution (EDD). Different inputs were used in the ResNet for predicting the error magnitude. RESULTS: In the test set, the accuracy of error type prediction based on the dose difference, gamma distribution, and RDD + EDD was 98.36%, 98.91%, and 100%, respectively; the root mean squared error (RMSE) was 1.45–1.54, 0.58–0.90, 0.32–0.36, and 0.15–0.24; the mean absolute error (MAE) was 1.06–1.18, 0.32–0.78, 0.25–0.27, and 0.11–0.18, respectively, for COLL, MU, MLCR and MLCS. CONCLUSIONS: In this study, error magnitude prediction models with dose difference, gamma distribution, and RDD + EDD are established based on ResNet. The accurate prediction of the error magnitude under different error types can provide reference for error analysis in patient-specific QA.
Methods of assessing the seismic resistance of building structures and nuclear power plant structures in Lira-SAPR program
Authors: Henzerkyi Yurii , Barabash Mariia , Trusov Ivan , Pervushova Liubov 
Published: March 2024

This article proposes a methodology for assessing seismic resistance and determining the reserve of seismic resistance, taking into account the interaction of the structure with the foundation for buildings and structures of power units, strength and deformation criterion of workability, etc. During verification calculation, three criteria of strength of workability, compiled according to the General principles of ensuring reliability and structural safety of buildings and structures, were considered. The seismic calculation was performed according to the linear-spectral theory of seismic resistance. In LIRA-SAPR program, considerationoftheinfluenceofthebaseisimplementedaccordingtoBuildingnorm DBN B.1.1-12-2014. Building Construction in seismic areas of Ukraine.
The method of calculating the value of the ultimate seismic resistance of HCLPF and the method of constructing damage curves are proposed. To determine the integral parameter HCLPF, which characterizes the level of seismic resistance of this element, a calculation analysis of the seismic resistance of elements of operating nuclear power plants was carried out within the framework of the method of ultimate seismic resistance. The methodology and verification examples for determining the values of FS and HCLPF parameters for reinforced concrete structuresin LIRA-SAPR programare proposed.
Methodical approach to determining the resistance of field fortification coating structures built to the shock-explosive impact of modern missile weapons
Authors: Voloshchenko Oleksandr , Kosenko Vitalii , Kovbasa Oleksandr , Chernykh Ihor , Kaplia Illia 
Published: March 2024

The purpose of the article is to publicize a methodical approach to determining the stability of cover structures of field fortifications to the shock-explosive action of modern missile weapons, in particular cruise and ballistic missiles.
The purpose of this article is to present a methodological approach for determining the resistance of the cover structures of field fortifications to the impact and explosive effects of modern missile weapons, in particular cruise and ballistic missiles.The analysis shows that currently, the most dangerous means of fire destruction for troops are long-range cruise and ballistic missiles with high explosive effect. Under such conditions, the most effective way to protect troops is to shelter them in field fortifications, the cover structures of which are resistant to the impact and explosive effects of these missiles.The article presents a methodological approach to determining the resistance of the cover structures of field fortifications to the impact and explosive effects of cruise and ballistic missiles and the results of determining the required thickness of the cover of these structures, which are made of the most readily available building materials in the field – soil, sand, clay, stone, concrete and reinforced concrete. The scientific novelty of the proposed methodological approach lies in the comprehensive consideration of a set of indicators quantifying the main tactical and technical characteristics of modern cruise and ballistic missiles, their flight and trajectory parameters, as well as indicators taking into account the most important properties of materials for the construction of a penetration and emission protection cover of a field fortification.
Penaksiran Repeatibilitas Produk Susu Sapi FH di Wilayah Kerja KUD Karya Nugraha Kelurahan Cipari Kecamatan Cigugur Kabupaten Kuningan
Authors: Suharto Suharto , Jaenudin Amran , Subandi Subandi 
Published: March 2024

ABSTRAKPenelitian dilakukan pada sapi perah Fries Holstein (FH) di wilayah kerja KUD Karya Nugraha Kelurahan Cipari Kecamatan Cigugur Kabupaten kuningan selama 10 hari, 4 â€“ 13 September 2008. Repeatabilitas susu sapi perah FH menggunakan catatan produksi susu laktasi pertama, kedua, ketiga dan kedua, ketiga, keempat menggunakan metode survey. Setelah perhitungan Repeatabilitas dilanjutkan dengan menghitung kecermatan nilai taksiran tersebut. Penilitian menggunakan catatan 360 produksi susu dari 90 ekor sapi induk yang mempunyai catatan laktasi 1 â€“ 4. Hasil penelitian menunjukan bahwa penggunaan catatan laktasi 1,2,3 dan catatan laktasi 2,3,4 memberikan hasil taksiran repeatabilitas dan kecermatan yang berbeda. Untuk penaksiran repeatabilitas dan kecermatannya sebaiknya menggunakan laktasi 1, 2, dan 3 karena nilai repeatabilitas dan kecermatan 0.42 Â 0,065, sedangkan catatan laktasi 2, 3, 4 memberikan nilai repeatabilitas dan kecermatan 0,33 Â 0,068.Kata Kunci : Sapi Perah FH, Repeatabilitas, Laktasi
Penilaian performans ayam lokal leher gundul Sampai umur 12 minggu
Authors: Yuliananda Devi , Kartasudjana R , Iskandar S 
Published: March 2024

AbstrakDalam rangka mempelajari dan menggkaji tentang performans ayam lokal leher gundul ditinjau dari aspek energetik, lima puluh ekor anak ayam leher gundul dan lima puluh ekor anak ayam berbulu lengkap digunakan dalam kajian terhadap pengaruh kadar energi ransum dan fenotip ayam pada variabel-variabel produksi (konsumsi pakan, pertambahan bobot badan, konversi ransum, bobot karkas). Dua kadar energi ransum (3098, 2 kkal me/kg dan 2655,8 kkal me/kg) serta dua fenotip ayam (leher gundul dan berbulu lengkap) digunakan sebagai faktor dalam rancangan penelitian (ral). Setiap kombinasi perlakuan dalam penelitian ini diulang sebanyak lima kali, dan setiap unit percobaan terdiri dari lima ekor ayam. Ayam ditempatkan pada kandang petak dengan alas kawat. Ransum diberikan ad-libitum dengan kandungan protein ransum Â± 16,5%. Hasil penelitian menunjukkan bahwa performans produksi ayam lokal tidak dipengaruhi oleh fenotip maupun kadar energi ransum (pËƒ0,05) dalam hal pertumbuhan, konversi ransum, dan produksi karkas, tetapi fenotip berpengaruh nyata terhadap konsumsi ransum (pË‚0,05) yang ditunjukkan oleh rataan konsumsi ransum kumulatif pada ayam leher gundul lebih banyak daripada ayam berbulu lengkap (4.922,47 vsÂ 4.673,08 g/ekor). Berdasarkan hasil yang diperoleh dari penelitian ini, dapat disimpulkan bahwa performans ayam lokal leher gundul akibat pengaruh kadar energi ransum tidak berbeda dengan respon pertperformans ayam berbulu lengkap. Akan tetapi, pemberian ransum dengan kandungan energi rendah (2655,82 kkal me/kg) memberikan respon positif terhadap peningkatan efisiensi pemanfaatan energi ransum.Kata kunci: ayam lokal leher gundul, performans, umur 12 minggu
Korelasi Antara Lingkar Dada dengan Produksi Susu Laktasi Pertama Sapi Fries Holland (FH) Pada Peternkan Rakyat di Pujon- Malang
Authors: Rahmat Taufik , Widyani Retno , Sumardjo Djodjo 
Published: March 2024

AbstrakÂ Â Â Â Â Â Â Â Â Â Â Sapi Friessland Holstein (FH) merupakan bangsa sapi perah yang banyak dipelihara di Indonesia, baik oleh peternakan rakyat maupun industri. Sapi FH memeliki kemampuan produksi relatf lebih tinggi dibandingkan dengan bangsa sapi perah lainnya. Besar ukuran tubuh dan bobot badan meskipun bukan ukuran ekonmi ternak perah, akan tetapi merupakan gambaran dari pertumbuhan ternak. Pertumbuhan yang baik menunjukan perkembangan hormonal yang baik khususnya hormon pertumbuhan, serta perkembangan organ-organ vital yang memiliki peran yang penting dalam metabolisme tubuh. Berdasarkan hal tersebut, permasalahan dalam penelitian ini adalah berapa nilai korelasi antara lingkar dada dan produksi susu laktasi pertama sapi FH. Tujuan penelitian ini untuk mengetahui ada tidaknya hubungan nyata dengan persamaan regresi produksi susu laktasi pertama dengan lingkar dada sapi FH pada peternakan rakyat di wilayah Pujon Kabupaten Malang. Lokasi penelitian di Peternakan Rakyat di Kecamatan Pujon Kabupaten Malang, dilaksanaka pada bulan Desember 2012 â€“ Januari 2013. Data yang diambil lingkar dada (sapi perah umur 3 dan 4 tahun) dan catatan produksi susu laktasi pertama, diambil secara random pada peternakan rakyat di Pujon. Data yang diperoleh produksi harian sapi perah sebesar 10,83 Â± 0,95 ekor/liter dan produksi selama laktasi 3302,39 Â± 290,09 ekor/liter dengan rata-rata lingkar dada sapi FH di peternakan Pujon 163,63Â±4,83 cm. Kesimpulan dari hasil penelitian ini yaitu ada korelasi antara lingkar dada dan produksi susu laktasi pertama sapi FH sebesar 0,731 (P<0,001) dan persamaan regresi Y = -3877,150 + 43,878 X.Kata Kunci : Sapi perah Fries Holland, lingkar dada dan produksi susu.
Playing the Long Game: China’s market opportunities for Ontario startups (Part 1)
Authors: Kim Chris 
Published: March 2024

<p>Canada has a robust startup ecosystem. In Startup Genome’s Startup Ecosystem Report 2012, three Canadian cities (two in Ontario) were ranked among the top 20 most active startup scenes in the world. These numbered among seven cities in the US, one in Israel, three in Europe and several in Asia Pacific. While Canada has the reputation of having excellent innovation capabilities and has witnessed a healthy growth of startups, it is facing similar challenges as Israel and other European countries on the top 20 list. These challenges include a comparably small domestic market and limited early-stage funding support for startups. </p>
Eficacia ecográfica en el diagnóstico de pancreatitis en perros de la consulta clínica diaria
Authors: Jiménez González Marco Xavier , Armas Ariza Juan Carlos 
Published: March 2024

Introducción: la ecografía es una técnica asequible y no invasiva que proporciona información importante sobre el parénquima de los órganos y las estructuras adyacentes. Es una herramienta esencial en el diagnóstico de los trastornos pancreáticos y proporciona un pronóstico rápido. Cada vez se estudian nuevas técnicas para complementar la información obtenida por el ultrasonido convencional y contribuir a una mejor calidad diagnóstica. La pancreatitis es una condición inflamatoria del páncreas, cuyas causas y fisiopatología siguen siendo poco conocidas. Objetivo: evaluar la efectividad ecográfica en el diagnóstico de pancreatitis en perros de la consulta clínica diaria. Metodología: la investigación es de carácter No Experimental / Descriptiva de tipo transversal, utilizando análisis estadístico chi2, para dos variables con escalas de medición de 31 caninos, con métodos de diagnóstico ecográficos y test de cPL. Resultados: los resultados de este análisis de 31 muestras indican que tanto la evaluación ecográfica de la rama derecha, como la de la rama izquierda del páncreas han demostrado ser efectivas en la detección de pancreatitis, con porcentajes de positividad del 58,83% y 61,29%, respectivamente. Conclusión: en resumen, los resultados de este estudio con 31 muestras sugieren que tanto la evaluación ecográfica de la rama derecha como la de la rama izquierda del páncreas son eficaces en la detección de pancreatitis. Es destacable que existe una fuerte concordancia entre las muestras positivas identificadas mediante la evaluación ecográfica de ambas ramas y los resultados positivos obtenidos mediante el test cPL. Área de la ciencia: Medicina Veterinaria.
Filosofi Dalam Mitor Kehamilan Perempuan Minangkabau
Authors: Marwati Sofia , Revita Ike 
Published: March 2024

Salah satu ciri khas yang melekat dalam masyarakat Minangkabau adalah edukasi via mitos. Meskipun dianggap sebagai sesuatu yang tidak perlu dipercayai, mitos dinilai cukup berhasil dalam meyakinkan masyarakat untuk sesuatu yang berisfat boleh dan tidak. Salah satunya adalah yang terkait dengan kehamilan. Ada beberapa mitos yang dipatuhi dan di implementasikan masyarakat Minangkabau terkait perempuan yang sedang hamil.Tulisan ini mencoba melihat bagaimana mitos dalam perspektif filsafat dalam temalinya dengan perempuan hamil. Ada dua tujuan penulisan artikel ini,yakni untuk mengindentifikasi mitos yang terkait dengan perempuan hamil dan hubungannya dengan filsafat. Penelitian dilakukan di Nagari Singkarak di Sumatera Barat.Pengambilan data dilakukan menggunakan metode observasi, teknik wawancara, rekam, dan catat. Analisis dilakukan menggunakan teori Suyami (1990)Â (Navies, 2017). Hasil analisis dipaparkan secara naratif. Ditemukan sembilan bentuk mitos dalam hubungannya dengan perempuan hamil di Minangkabau. Dalam mitos ini terkandung filosofi agar perempuan hamil benar-benar dijaga agar terlahir bayi yang sehat dan selamat.
The Effect of Translation Technique to Its Quality at The Holy Book of Indonesian Moslem Society
Authors: Gunawan Fahmi 
Published: March 2024

Penelitian ini mengkaji pengaruh teknik penerjemahan terhadap kualitas penerjemahan alquran yang dilakukan oleh Tim Kementerian Agama RI. Sumber data penelitian berasalÂ dari alquran android hasil terjemahan Tim Kementerian Agama. Pengumpulan data dilakukan dengan caraÂ menyimak hasil terjemahan alquran, FGD, dan dokumentasi. Hasil penelitian menunjukkan bahwa teknik penerjemahan sangat mempengaruhi kualitas terjemahan. Penggunaan teknik modulasi dalam penerjemahan alquranÂ membuat aspek keakuratanÂ menjadiÂ sangat baik, namun kurang berterima dalam bahasa sasaran.