bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Experimental Study of the Performance of Flame-Sprayed Ni-Based Metal Matrix Composite Coatings as Resistive Heating Elements
Authors: Dehaghani Shahed Taghian , McDonald André , Dolatabadi Ali 
Published: January 2023

Abstract
This study investigates the effect of incorporating different reinforcing particles on the microstructure, electrical resistance, and heating efficiency of flame-sprayed nickel-based coatings. Feedstock powders were prepared by adding Al2O3, TiO2, and WC particles to NiCrAlY powder, and the various combinations were applied to alumina-coated carbon steel substrates. A number of Joule heating experiments were conducted by creating voltage differences across the coatings and measuring temperature changes due to induced electron flow and associated resistive heating. It was found that the electrical properties of the ceramic particles have a major effect on heat generation and that there is considerable room for improvement.
Observation of a Redisposition Effect While Cold Spraying Sn-Al Mixed Powders onto Carbon Fibre Reinforced Polymers
Authors: Liberati Andre , Che Hanqing , Yue Stephen , Vo Phuong 
Published: January 2023

Abstract
Single component tin coatings have been successfully cold-sprayed onto carbon fiber reinforced polymers. Coatings with mixed metal powders have also been sprayed to improve conductivity for lightning strike protection purposes. Test results indicate a noticeable improvement in deposition efficiency with the addition of a secondary metallic powder. This study examines the effect of aluminum powder additions in tin coatings. Following cold spraying of various Sn-Al mixtures over a wide range of gas pressures, unusual coating morphologies were observed. The study of these morphologies reveals two distinct deposition phases depending on spray pressure. The presence of submicron particles also supports the occurrence of a powder melting phenomenon during the spraying process.
Transient Thermal Evolution During Deposition of Cold-Sprayed Coatings
Authors: Mahdavi Amirhossein , Pourasghar Aminallah , Chen Zengtao , McDonald André 
Published: January 2023

Abstract
Knowledge of thermal interactions between the substrate and deposited particles during cold spraying can shed light on coating formation and bonding mechanisms. In this study, a mathematical model based on the differential quadrature method was used to solve the hyperbolic heat conduction problem to predict the transient thermal evolution associated with the impact of a single particle. In addition, a 2D finite element model was developed to simulate the thermal and dynamic behavior of particle impact. The two models showed good agreement in predicting the maximum temperature at the particle-substrate interface. It was concluded that the proposed mathematical model could be used to predict the transient temperature of metallic and nonmetallic particle-substrate interfaces during cold spray deposition.
Suspension High Velocity Oxy-Fuel Spray of Graphene Nanoplatelets for Low-Friction Wear Protective Film Elements
Authors: Venturi F. , Hussain T. 
Published: January 2023

Abstract
In this work, suspension high-velocity oxyfuel spraying (SHVOF) with radial injection is shown to be a suitable technique for depositing graphene nanoplatelet layers on stainless steel substrates. The effect of feedstock injection parameters such as flowrate, injection angle, and position are investigated at different flame powers by means of high-speed imaging. In dry sliding wear tests, graphene layers on stainless steel exhibited a friction coefficient of around 0.1 after 1000 cycles and less than 0.3 after 2000 cycles. Compared to uncoated stainless steel, this is an order of magnitude improvement.
A New Way to In-Situ Synthesize Rutile TiO2 Coating
Authors: Fan Xiujuan , Darut Geoffrey , Fen Xiaohua , Song Chen , Planche Marie Pierre , Liao Hanlin , Montavon Ghislain 
Published: January 2023

Abstract
In this study, pure rutile TiO2 coatings are deposited on stainless steel substrates by very low-pressure plasma spraying (VLPPS). The spraying system was used in the reactive mode, injecting both titanium powder and oxygen gas to achieve nanosize particles. Optical emission spectroscopy showed that the interaction between Ti particles and O2 occurred in flight. Coating microstructure and phase composition were characterized at the surface and in the bulk with respect to operating parameters. Coating surfaces show typical cauliflower microstructure with many nanoparticles, while the microstructure below was found to change from binary to columnar as spraying distance increases.
Evolution of Agglomerate Yttria Stabilized Zirconia Particles During Flight in Suspension Plasma Spray
Authors: Javid Seyyed Morteza , Mostaghimi Javad , Moreau Christian 
Published: January 2023

Abstract
The agglomeration process plays an important role in suspension plasma spraying (SPS), affecting the state of particles prior to impact and consequently the mechanical properties of the coated substrate. This paper presents the results of an investigation on the agglomeration of submicron YSZ particles sprayed from a water suspension. The shape and surface morphology of transient and final agglomerate structures was studied by injecting YSZ suspensions with a nebulizer into an inductively coupled plasma torch. It was found that particle agglomeration occurs in successive stages identified as cup or doughnut shaped agglomerates, polycrystalline particles, and amorphous or partially molten particles.
A Study of the Mixed Powders Interaction Behavior Upon Impact in Cold Spray
Authors: Chu Xin , Yue Stephen , Vo Phuong 
Published: January 2023

Abstract
In this study, two sizes of iron and stainless steel powders were binarily mixed into four groups with different weight percent fractions and the various mixtures and single-component powders were cold sprayed onto aluminum substrates. The deposition efficiencies (DE) of the powder mixtures and single-component powders were measured and are compared. The results show that the four binary mixtures exhibit different DE characteristics as a function of stainless steel wt% and that the small size mixtures have higher DE relative to the single-component iron powder. The difference is explained by particle-particle interactions (tamping and retention) that occur upon impact and only in the small size mixtures. The study also finds that changing spray parameters, such as feed rate, stand-off distance, gun travel speed, and gas temperature and pressure, has no effect on particle-particle interactions.
Preparation and Application of 316L Stainless Steel Powder for Selective Laser Melting Process
Authors: Kaiping Du , Shengfeng Li , Zhengqiu Li , Jie Shen , Haibo Sun , Shuting Zhang 
Published: January 2023

Abstract
In this work, a 2D axisymmetric model of gas atomization at unsteady state that accounts for break-up and solidification is used to simulate laser melting of gas atomized powder. With an optimal nozzle width of 0.6-1 mm and a nozzle angle of 30-32°, the yield of fine 15-45 μm stainless steel powder, suitable for selective laser melting, is shown to increase from 20% to 35%. The effect of laser power on the melting channel width, microstructure, and mechanical properties of the sample is also investigated.
La synthèse de la qualité des comptes : une formule nouvelle pour améliorer la fiabilité des comptes des collectivités locales
Authors: Gac Philippe , Brunner Eugénie 
Published: January 2023

Participant incontestablement à l’amélioration de la fiabilisation des comptes locaux, l’actuelle expérimentation de la certification des comptes des collectivités locales s’accompagne d’un volet alternatif à destination de collectivités volontaires : la synthèse de la qualité des comptes.
En tant que pilote du réseau des comptables publics, teneurs des comptes des collectivités locales, la Direction générale des finances publiques, via son réseau de comptables publics et de conseillers aux décideurs locaux, est au coeur de sa mise en oeuvre expérimentale.
Dans un contexte de généralisation du référentiel M57 au 1er janvier 2024 et de déploiement du compte financier unique, ce dispositif innovant doit, à terme, constituer un outil visant à fiabiliser les états financiers produits par les collectivités locales.
Pengaruh Penambahan Baja Tulangan Horizontal pada Dinding Pasangan Bata Merah Terkekang
Authors: Bachroni Cecep Bakheri 
Published: January 2023

Sistem struktur penahan beban lateral dengan menggunakan dinding pasangan bata merah terkekang adalah sistem struktur yang paling umum digunakan untuk bangunan rumah tinggal sampai dengan dua lantai. Ketahanan gempa sistem struktur ini tergantung pada potensial disipasi energi dari elemen struktur balok, kolom dan pasangan bata merah yang dirancang dengan baik, sehingga bangunan dapat mengalami deformasi inelastik yang besar dan keruntuhan bangunan akibat beban lateral gempa dapat dikendalikan oleh kemampuan deformasi sistem struktur bangunan. Pada struktur dinding pasangan bata merah terkekang. Tegangan akibat gempa direspon oleh unsur-unsur horisontal, vertikal dan/atau diagonal secara bersama-sama. Regangan elemen-elemen pengekang dan regangan diagonal strut pasangan mendisipasi jumlah energi yang signifikan selama gempa bumi. Agar keruntuhan dinding dikendalikan oleh regangan diagonal strut, maka kapasitas sliding geser dinding harus lebih besar dari kapasitas tekan diagonal strut. Tujuan penelitian ini adalah untuk menyelidiki perilaku seismik pasangan terkekang yang disisipi baja tulangan diameter 8 mm secara horizontal pada panel dindingnya. Spasi vertikal baja tulangan ini adalah satu meter yang menembus dari kolom satu ke kolom lainnya. Hasil penyelidikan eksperimental menunjukkan bahwa dinding pasangan terkekang dengan tambahan baja ini memberikan kestabilan deformasi yang lebih baik, sehingga dapat memberikan kapasitas simpangan yang lebih panjang dibandingkan dengan dinding tanpa tambahan baja tulangan.
Influence of emulsols type on energy-power consumption and surface contamination at DC01 steel cold rolling on the continuous four-stand mill
Authors: Kukhar V. , Malii Kh. , Spichak O. 
Published: January 2023

The article presents the results of experimental and industrial tests of physical and chemical parameters of the experimental emulsol "Quakerol". According to the physicochemical parameters the experimental emulsol "Quakerol" differs from the used emulsol "Universal-1TS" by higher lubricating properties. Operating modes of stand and coiler electric motors of tandem mill at rolling of melts from experimental emulsol "Quakerol" lubricated with emulsol "Quakerol" and serial emulsol "Universal-1ТС" lubricated with conservation oil "OK-2" at LPTs were analyzed. The results of analysis of loads at rolling of strips with 0.68×1000 mm cross-section from pre-rolled sheet with thickness of 3.0 mm showed that the values of average total loads on stand motors and coiler of four-stand mill 1680 were higher when using experimental emulsol "Quakerol". The comparative analysis of experimentally obtained data on influence of technological conditions of cold-rolled coils production at four-stand continuous tandem mill 1680 with using emulsols "Quakerol" and "Universal-1TS" on rolling power parameters, power consumption and contamination of DC01 flat carbon steel surface is presented. Multiple regression equations were obtained to describe power consumption during rolling using different emulsions, the values of cross-sectional area were taken as a varying factor. Specific power consumption and average total load on stands and coiler motors during rolling with the use of emulsion prepared from experimental emulsion "Quakerol" and emulsion prepared from standard emulsion "Universal-1TS" were estimated. The reasons of higher specific power consumption during LCL operation with the experimental emulsion were analyzed. A quantitative assessment of contamination of the surface of steel samples using the experimental emulsion "Quakerol", oil "OK-2" and standard emulsion "Universal-1TS" is given. The necessity of further tests to determine the optimal concentration of emulsion from "Quakerol" to ensure the reduction of energy costs per ton of cold rolled steel has been substantiated.
The practical significance of the work lies in the development of methods for analysis of lubricants with regard to the prospects of using "Quakerol" emulsion instead of "Universal-1TS" emulsion in order to improve the quality and increase the productivity of the cold-rolling shop
Preposition Mistakes in English for Specific Purposes: The Case of Indonesian Accounting Study Program Students
Authors: Mahardika Agustine Andriana Ayu , Bram Barli 
Published: January 2023

Prepositions remain challenging for learners of English as a foreign language. Linguistically speaking, prepositions are part of grammar and are frequently used in speaking, listening, reading, and writing. Thus, this research investigated the mastery of English prepositions of undergraduate accounting program students of batch 2021 at a private university in Yogyakarta. The data of this quantitative research were collected through a close-ended questionnaire using Google Forms distributed to 23 students. The collected data were analyzed to identify preposition mistakes. Results showed three common problems of prepositions, namely the addition of unnecessary prepositions, omission of prepositions, and misuse of prepositions. The findings would assist students, thesis advisors, and teachers in using English prepositions grammatically, particularly in English for Specific Purposes (ESP). It is expected that future researchers utilize larger data sets to obtain more robust results of proper uses of prepositions and future researchers are expected to observe the participants directly to maximize the results of the data.
CORRELATION OF THE IMPACT OF TAMSULOSIN/DUTASTERIDE COMBINATION THERAPY ON ERECTILE DYSFUNCTION (ED) IN BENIGN PROSTATIC HYPERPLASIA (BPH) IN PKU MUHAMMADIYAH GOMBONG HOSPITAL, KEBUMEN
Authors: Akhmad Miftahudin Fazri  , Muhammad Irbabul Lubab  
Published: January 2023

Objective: This study assessed the impact of a fixed-dose combination 5α-reductase inhibitor (5-ARI) dutasteride 0.5 mg and the α-blocker (AB) tamsulosin 0.4 mg on erectile dysfunction (ED) using The International Index of Erectile Function-5 (IIEF-5) score and Erectile Hard Score (EHS) in patients with lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH). Material & Methods: This was an analytical cross-sectional with consecutive sampling. We reviewed the medical records of the symptomatic BPH patients. Then we interviewed The International Prostate Symptom Score (IPSS), Quality of Life (QOL), IIEF-5, and EHS scores after administered combination therapy. The data were analyzed with SPSS IBM 21.0 using univariate and then bivariate analysis. Results: Forty (40) patients fulfilled inclusion criteria. The results showed that the frequency of patients at most in the age range of 50-59 years (40%), most of IPSS after therapy showed mild grade 45%, and moderate grade 55%. The QOL average score is 2.08, most of the patients felt pleased (35%). IIEF-5 average score after treatment is 11.6 (moderate ED) and the EHS is 2.48 (grade 2: tumescence with minimal rigidity). The Spearman test showed that there was no correlation between IPSS and IIEF-5, the score is -0.658. Then, the Spearman correlation score between BPH grade after combination treatment and ED grade is 0.739 and had a statistically significant 0.000 (p<0.001). Conclusion: This research shows that there is a correlation of the impact of tamsulosin/ dutasteride combination therapy on ED in BPH with secondary LUTS.
Keywords: BPH, erectile dysfunction, tamsulosin/dutasteride combination.
SMART E-LEARNING OPTIONS FOR STUDENTS IN MEDICAL RESIDENCY AND CLERKSHIP DURING THE COVID-19 PANDEMIC
Authors: Zulfiqqar Andy , Ahmad Zulfan Hendri  , Soeroharjo Indrawarman 
Published: January 2023

Objective: This study aimed to evaluate medical resident and clerkship preferences for a variety of available Smart e-Learning options to better cope with this global pandemic. Material & Methods: This cross-sectional study using a web-based national survey was conducted between the 10th-20th of June 2020. As many as 91 of 200 (45.5% response rate) residents and clerks, who were randomly invited, responded to the survey and rated the available modalities for Smart e-Learning. Results: Generally, respondents choose morning scientific online meetings (rated 7.61/10), webinars on case discussion (7.58/10), and pre-recorded tips and tricks on surgery (7.32/10) as their favorite modalities of Smart e-Learning. Conclusion: Scientific meetings among faculty and video based learning are both equally favorite modalities of Smart e-Learning during this pandemic. Meanwhile, morning reports are the least favorite due to the majority of cases are emergency cases that lack interactive discussion. This study may provide more insights for medical faculties into how to better cope with this pandemic and continue to deliver high quality education in the ‘New Normal’ Era using Smart e-Learning options.
Keywords: e-Learning, resident, clerkship, New Normal Era.
CARCINOMA TESTIS PROFILE IN TERTIARY HOSPITAL
Authors: Chaerul Harry Achsan , Seputra Kurnia Penta , Daryanto Besut 
Published: January 2023

Objective: This study was undertaken to estimate the epidemiological characteristics, histological types, and subtypes of testicular neoplasm according to the WHO classification in our patient group. Material & Methods: This was a retrospective study done over a period of ten years from January 2010 - December 2020 in our institution. Histopathological slides were retrieved and reviewed for tumour. Testicular Neoplasm patients who underwent orchidectomy and chemotherapy clinical data including the patient’s age, tumor location, tumor side, pathological finding, tumor marker, chemotherapy regiment, prognosis, chemotherapy response, and side effect were observed. All the data were analyzed descriptively and using SPSS 17.0. Results: A total of 31 cases of testicular and paratesticular neoplasm were encountered in our study with a mean age of 32.516.2 years. The highest incidence was 15-35 years old (48.3). Scrotum mass was the most frequent clinical presentation (70.96%) and left side became the predominant area (52%). Most of the patients come in late stage T3 (51.61%) and N3 (67.74%) with no metastatic process (70.96). The major pathological finding was Seminoma (64.51%), Teratoma (16.12), Yolk Sac (12.9%), Embryonal, and Mixed (3.22%). AFP, B-HCG, and LDH were elevated in some Seminoma, Teratoma, and Yolk Sac groups. The most wide chemotherapy used was 4 series BEP (87.09%). Patient prognosis highest incidence were Intermediate (70.96%). Most of the patients showed complete response (67.74) of chemotherapy. Nausea, vomiting, alopecia, and mucositis were observed as chemotherapy side effect in all patients. Conclusion: Testicular neoplasm peak incidence appears in young male. Most patients come to health care service in late stage. Seminoma become the highest testicular neoplasm incidence in our study. Elevated tumor markers were found in some patients. Four cycle BEP chemotherapy regiment showed great outcome for these patients.
Keywords: Epidemiological, histological, testicular neoplasm.
Factors associated with the length of stay of deep neck abscess patients
Authors: Yanti Lisa Apri , Lubis Friska Meutia , Bahar Erial , Ghanie Abla 
Published: January 2023

ABSTRACTBackground: Deep neck abscess is an accumulation of pus in one or more potential spaces of the deep neck fascia. Complications of deep neck abscesses are considered as an emergency in the Ear Nose Throat–Head and Neck field. One determining factor of prognosis in deep neck abscess patients is the length of stay in the hospital. Objective: To find out the factors associated with the hospital length of stay of deep neck abscess patients. Method: Observational research using a cross sectional design. Data collection was carried out using medical record data on 91 subjects diagnosed with deep neck abscess at Dr. Mohammad Hoesin Hospital Palembang from July 2018 to May 2021. Result: From the 91 samples studied, the average hospital length of stay for deep neck abscess patients was 11.26 days. The study found factors related to the length of stay in the hospital, namely comorbidities (p=0.005), location of the abscess (p=0.004), pus culture (p=0.003), and the number of deep-neck spaces involved (p=0.005). Linear regression found that the most significant factors on the hospital length of stay were the involvement of abscess in 2 or more deep neck spaces (p = 0.002) and the presence of comorbidities (p = 0.005). Conclusion: Abscess involvement in 2 deep neck spaces or more and the presence of comorbidities were the most influential factors associated with the hospital length of stay in deep-neck abscess patients.ABSTRAKLatar Belakang: Abses leher dalam adalah akumulasi pus pada satu atau lebih ruang potensial fasia leher dalam sebagai akibat penjalaran infeksi. Komplikasi abses leher dalam masih merupakan keadaan darurat di bidang THT-KL. Salah satu faktor penentu prognosis adalah lama rawat di rumah sakit. Banyak faktor yang dapat mempengaruhi lama rawat pasien abses leher dalam di rumah sakit. Tujuan: Untuk mengetahui faktor-faktor yang berhubungan dengan lama rawat pasien abses leher dalam di RSUP Dr. Mohammad Hoesin Palembang. Metode: Penelitian observasional yang menggunakan rancangan potong lintang. Pengumpulan data dilakukan dengan menggunakan data rekam medis pada 91 subjek dengan diagnosis abses leher dalam di RSUP Dr. Mohammad Hoesin Palembang periode Juli 2018 sampai dengan Mei 2021. Hasil: Dari 91 sampel yang dilakukan penelitian, rerata lama rawat di rumah sakit pada pasien abses leher dalam adalah 11,26 hari. Penelitian mendapatkan faktor yang berhubungan dengan lama rawat di rumah sakit yaitu komorbid (p=0,005), lokasi abses (p=0,004), kultur pus (p=0,003), dan jumlah ruang leher dalam yang terlibat (p=0,005). Dari uji regresi linier didapatkan faktor yang paling memengaruhi lama rawat di rumah sakit adalah keterlibatan abses ³ 2 ruang leher dalam (p=0,002) dan terdapat komorbid (p=0,005). Kesimpulan: Keterlibatan abses pada 2 ruang leher dalam atau lebih, dan terdapatnya komorbid adalah faktor yang paling berpengaruh terhadap lama rawat pasien abses leher dalam.