bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Abradability of Different Abradables Rubbed Against Ti2AlNb Blades
Authors: Cheng X. , Liu J. , Yu Y. , Liu T. , Zhang D. , Shen J. 
Published: November 2022

Abstract
The Ti2AlNb blade is used in high pressure compressor aero-engines to provide high thrust force at relatively light weight. A series of abradability tests was carried out on CuAlNi-graphite, NiCrAl-graphite, NiCrAl-bentonite, and NiCrFeAl-hBN abradable coatings rubbed against Ti2AlNb dummy blades with the maximum blade-tip velocity of 300 m/s at 500 °C. In consideration of the effects of an engine’s working conditions, some tests were conducted with incursion rate as the single variable. The scratched surfaces of the samples were observed by the stereoscopic optical camera, and a ratio of the blade wear to shroud incursion depth (IDR) was evaluated to characterize the abradability of coatings. The results show that NiCrAl-graphite and NiCrFeAl-hBN abradable coatings perform very well rubbed against the Ti2AlNb blade, and the blade-tip wear is not obvious after abradability tests.
Effect of Mo Content on Tribological Properties of Atmospheric Plasma-Sprayed Mo-NiCrBSi Composite Coatings Under Dry and Oil-Lubricated Conditions
Authors: Xu H. F. , Liu L. M. , Xiao J. K. , Zhang C. , Zhang G. , Liao H. 
Published: November 2022

Abstract
NiCrBSi is a material generally used in wear-resistant coatings. In order to improve the tribological properties of atmospheric plasma-sprayed NiCrBSi coatings, Molybdenum (Mo) was incorporated into the NiCrBSi coatings to reduce the friction coefficient and wear rate under dry and oil-lubricated conditions. In this paper, Mo-NiCrBSi composite coatings with Mo content of 5, 10, 20 and 30 wt.% were deposited on stainless steel substrates respectively by atmospheric plasma spray. X-ray diffraction, optical microscopy and scanning electron microscopy equipped with energy dispersive spectroscopy were utilized to investigate the phase structure and surface morphology of the composite coatings. Reciprocating friction tests were conducted to measure the friction coefficients and 3D optical microscopy was used to depict the wear track profiles. The results showed that the 30 wt.% Mo-NiCrBSi coating exhibits the best tribological performance. In addition, MoO2 and MoS2 films were formed in the friction process under dry condition and oil-lubricated condition respectively.
Direct Metal Laser Sintering (DMLS) Technique for Prospective Wear Related Applications
Authors: Grewal G. , Kaushal G. , Krishan B. 
Published: November 2022

Abstract
Direct Metal Laser Sintering (DMLS) technique is one of the technologies which is generally used to built prototypes and tooling applications. DMLS uses powder bed fusion to bond particles together by laser energy. A new powder layer is spread on top of the previous layers and the process is repeated up to required shape of part can be produced. This review paper presents development, current status and challenges of the DMLS technique with emphasises on material processed by DMLS and is aimed to understand influence of density, microstructure, micro-hardness, tensile strength and wear behaviour of built-up parts. It also highlights the process through proofs based on classical results in terms of advantages and applications.
A Novel Way to Analyze the Residual Strain and Stress in Cold-Sprayed Coatings
Authors: Ye Y. , Huang R. , Huang J. , Fukanuma H. , Shobu T. 
Published: November 2022

Abstract
Residual stress and adhesive/cohesive strength in cold-sprayed coatings are extremely important factors, and the balance between them can be a determining factor in coating failure, such as by delamination or cracking. Dominated residual stress to bonding stress should lead to coating peel off from its substrate. Up to now, it is still difficult to measure the residual stress of cold-sprayed coating especially inside it. In the present study, a high-energy X-rayed beam was utilized to penetrate the cold-sprayed coatings and the change of its diffraction angle can be detected. This gave a way to measure the residual strain inside the cold-sprayed coatings. With the scanning of the X-rayed beam and the detector at different locations, the strain of cold-sprayed coating at 2 directions can be obtained. Moreover, the residual stress of cold-sprayed coating can be calculated with the measured strain.
Submodeling of Alumina Coatings by APS
Authors: Martínez García V. , Gadow R. , Killinger A. , Moreno Nicolás J. A. 
Published: November 2022

Abstract
Traditional low-cost bulk materials are unable to fulfil the increasing requirements of actual technology and functional coatings – e.g. APS alumina coatings on aluminium substrates for tribological properties – are a suitable alternative. The development of new thermal sprayings is usually based in experimental procedures which involve long development times and high costs. Nowadays, numerical simulation allows the researcher a better understanding of thermal spray processes as well as reducing the time and cost for the optimization of processes, but it requires a deep insight into the physics of the phenomenon. The submodelling approach allows the researchers to work with a local model, a thin layer – just a few microns – on the metal substrate surface, and more realistic boundary conditions, which requires a little specialised knowledge. The current study involves the workflow to manage the modelling at piece scale, and the transfer and interpolation of boundary conditions in each scale. The coating is divided into several layers, which represent the successive splats deposited during the process, and the heat flow from the torch is modelled by radiation and convection. A code is implemented in order to generate the routine needed by the FEM software, in which the results are processed and interpolated for the subsequent submodel. Furthermore, the material plasticity is considered and several tests are performed in order to check the simulation results.
Investigating Influences of Suspension Plasma Spray Parameters on Photocatalytic Activity of TiO2 Coatings
Authors: Vu T. P. , Otto N. , Vogel A. , Kern F. , Killinger A. , Gadow R. 
Published: November 2022

Abstract
In recent studies, the suspension plasma spray technology (SPS) was shown as a promising method for deposition of photocatalytic TiO2 coatings on glass substrates. However, only little information about the effects of SPS process parameters on the resulting photocatalytic activity is available. In this study, several suspensions were prepared from different powders and various dispersion mediums successively sprayed. Four titania powders with a proven photocatalytic track record, Evonik P25, Kronoclean 7050, Hombicat UV100 and Sigma Aldrich were used to study the influence of starting powder type. Furthermore, compositions of the dispersing medium were varied in order to investigate their influence on coating structure, adhesion to substrate and photocatalytic activity. Degradation of methylene blue was tested as a marker for the photocatalytic activity. At chosen torch parameters, alcohol and water in a ratio of 1:3 was identified as the best composition. Suspensions sprayed with higher alcohol content suffered from the reduction in anatase phase; higher water content reduced the coating adhesion to the substrate. Regarding the initial powders, films made of Evonik P25 and Sigma Aldrich TiO2 had higher photocatalytic activity than others. Moreover, the photocatalytic activity of doped TiO2 coatings illuminated by both an artificial light and sunlight were investigated.
Pulsed Current and Pulsed Powder Operation of the One-Cathode-One-Anode-Plasma-Generator (OCOAPG)
Authors: Zimmermann S. , Atzberger A. , Szulc M. , Zierhut J. 
Published: November 2022

Abstract
In most plasma spraying SMEs a One-Cathode-One-Anode-Plasma-Generator (OCOAPG) is used due to its cost-effectiveness. To achieve high deposition rates, the highest possible fraction of the injected powder has to be melted and accelerated towards the substrate. Adequate to the amount and size of the particles, a sufficiently long and reproducible residence time in plasma is therefore needed. This can be achieved by a long plasma jet with little or no temporal variation in length and temperature. In OCOAPG an arc is operated between a cathode and a central tubular anode, which causes different instabilities in the effluent plasma jet. Due to the instable interaction between the plasma jet and the carrier gas jet continuously incorporating the powder, fluctuations occur resulting in reduced coating quality. Coating systems with a higher amount of electrodes (and hence using several arcs) show higher stability and therefore can provide higher coating quality. However, due to their complexity and cost intensity, the investment hurdle for SMEs usually turns out to be too high. Recently, research steps to improve the plasma spraying process with OCOAPG have been undertaken by using a controllable current source to create a uniform particle gas jet interaction. As the movement of the anodic arc attachment point can be actively controlled by current pulses, the plasma jet can be lengthened and shortened at periodic intervals. Furthermore, by pulsing the particle delivery synchronously to the power modulation an improved particle penetration and consistent residence times can be achieved. First diagnostic results, including coatings, are presented and discussed within the paper.
Keterampilan Menulis Teks Berita Menggunakan Metode Discovery Learning
Authors: Linda Wirda 
Published: November 2022

This study aims to determine the effect of discovery learning method on writing news text skills. The research method used is an experimental research method with discovery learning approach. The results showed that the mean value of the experimental class was 83.78 with a standard deviation of 16.74 which were well qualified. Whereas in the control class the average value is 69.82 with a standard deviation of 15.87, which is more than adequate. The bivariate test results showed that the value of Ftable 3,4> Fcount 1.1095 and the analysis results obtained Tcount 3.061 and Ttable 1.68. The average score of the experimental class writing ability is higher than the control class. In conclusion, there is a significant effect of the use of the discovery learning method on the skills of writing news texts in class VIII students of SMP Negeri 4 Lareh Sago Halaban.
Keywords: Discovery Learning Method, News Text Writing
Kesalahan Penggunaan EYD terhadap Paragraf Eksposisi
Authors: Ernis Poni 
Published: November 2022

The purpose of this study is to analyze the use of EYD in the exposition paragraph. This type of research is qualitative research using descriptive methods. Based on the results of the study, the errors in using EYD for exposition paragraphs are grouped into three parts, namely capital letters, preposition and punctuation. Writing capital letters results in 279 cases of error, the use of prepositions of data results in 24 cases of errors, while the use of punctuation is further divided into the use of a period (.) And the use of a comma (,), the use of a period of data results in 26 cases of errors, while the use of commas obtained data results as many as 36 cases of errors. Thus it can be concluded that the misuse of EYD was caused by students' lack of understanding of the writing procedure according to the EYD system.
Keywords: Exposition Text, EYD Usage Error
Struktur Batin Puisi Bertema Cinta Karya W.S. Rendra dan Ardiansyah
Authors: Ansyor Ansyor , Nugroho Agung 
Published: November 2022

The purpose of this study was to analyze the love-themed poetry of W. S. Rendra and Ardiansyah. The research method used is a qualitative method based on content analysis. The results of this study indicate that the elements that stand out in the concept of aesthetic development in the love-themed inner structure poetry. Poets are free to play words in order to beautify the poetry of poetry. The inner structure used is the inner structure of the theme, taste, tone and message. In conclusion, the four love-themed poems by W.S. Rendra and Ardiansyah have 52 quotes, including: 15 quotes containing concern and heartbreak, 14 quotes, while the tone and message are 13 and 10 quotes.
Keywords: Rhymes Inner Structure
Analisis Kepribadian Tokoh Utama dalam Novel Neraka Dunia Karya Nur Sutan Iskandar
Authors: Nurcahyo Alfi , Arianti Rita , Hermawan Hermawan 
Published: November 2022

The purpose of this study was to describe the main character in the novel Hell of the World by Sutan Nur Iskandar. This research method is descriptive with the type of qualitative research. The results show that the dominant main character has a personality that is influenced by the Id element, this is because the main character Ahmad Salam instinctively determines his personality to have a strong stance, not easily influenced by others and has an independent spirit in life. No. Id plays a more important role in every action and behavior that the main character takes because these actions come from the impulse of desire in himself without being influenced by others. In conclusion, the personality elements of the characters contained in the novel Hell of the World by Sutan Nur Iskandar are of 3 types, namely, 1) the id element contains eleven data, 2) the ego element contains ten data, 3) the super ego element contains eight data.
Keywords: World Hell, Novel, Personality Uncertainty
Analisis Citraan dalam Antologi Puisi Titip Pesan pada Tuhan Karya Lenggok Media Production Rokan Hulu
Authors: Badri Impon , Nofrita Misra , Hermawan Hermawan 
Published: November 2022

The purpose of this study was to describe the imagery contained in the anthology of the poem Titip Message to God by Lenggok Media Production Rokan Hulu. This research method is a qualitative descriptive method. The results of this study were to find 179 images in the anthology of the poem Titip Message Pada God with Lenggok Media Production Rokan Hulu, namely 80 visual images, 45 auditory images, 15 olfactory images, 6 tasting images, 17 tactile images, and 16 motion images. In conclusion, in this poetry anthology visual imagery is more dominant because poetry is more poetry than dark poetry, so that poetry words tend to use denotative language to describe the objects they see and most of the poets adhere to naturalism by describing what is according to their vision.
Keywords: Imagery, Leggok, Poetry
Kemampuan Menghubungkan Latar Cerpen dengan Realitas Sosial Menggunakan Model Pembelajaran Cooperative Integrated Reading and Composition (circ)
Authors: Putri Mawar Lestari 
Published: November 2022

Penelitian ini bertujuan untuk mendeskripsikan kemampuan siswa kelas VII SMP Negeri B. Srikaton menghubungkan latar cerpen dengan realitas sosial setelah penerapan model pembelajaran Cooperative Integrated Reading and Composition (CIRC). Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Sedangkan subjek dalam penelitian ini adalah siswa kelas VII.7 SMP Negeri B. Srikaton berjumlah 35 siswa yang terdiri dari 17 laki-laki dan 18 perempuan. Teknik pengumpulan data yang digunakan adalah observasi, tes, dan angket. Teknik analisis data yang digunakan adalah teknik analisis hasil observasi, teknik analisis hasil tes, dan teknik analisis hasil angket. Hasil penelitian menunjukkan beberapa hal, yaitu (a) proses penerapan model pembelajaran CIRC dalam pembelajaran menghubungkan latar cerpen dengan realitas sosial tercapai dengan baik ditunjukkan bahwa kegiatan pembelajaran dengan model pembelajaran CIRC dalam pembelajaran menghubungkan latar cerpen dengan realitas sosial dari awal kegiatan inti hingga kegiatan akhir berjalan sesuai dengan rencana kegiatan pembelajaran serta mampu mengidentifikasi siswa dalam proses pembelajaran. (b) kemampuan menghubungkan latar cerpen dengan realitas sosial siswa berdasarkan hasil tes menunjukkan rata-rata 75,14 dengan ketuntasan mencapai 80%. (c) respons siswa terhadap penggunaan model pembelajaran CIRC dalam pembelajaran menghubungkan latar cerpen dengan realitas sosial baik, hal tersebut dapat dilihat dari hasil persentase jawaban responden (siswa sampel)

Kata kunci: model pembelajaran CIRC, latar cerpen, realitas sosial
Patient Satisfaction on Covid-19 Handling in Primary Centers Medan
Authors: Yustika Wirda Ningsih  , Nasution Azizah , Harahap Urip 
Published: November 2022

Primary health centers play important roles in preventing, detecting, and helping people to cope with the problems associated with the COVID-19 infection. Therefore, it is necessary to strengthen and optimize the role of primary health center, including pharmaceutical care. This prospective descriptive study aimed to evaluate the level of patient satisfaction on COVID-19 handling in seven primary health centers Medan, Sumatera Utara, Indonesia period January to April 2021. A self-designed questionnaire was distributed to a total of 617 patients admitted to the 7 primary health centers to assess the characteristics of the patients and the required data about patient satisfaction about nine-item pharmaceutical services provided, supporting facilities, and infrastructures. The patient satisfaction was assessed using a 4-point Likert scale categorized into very dissatisfied, dissatisfied, satisfied and very satisfied. The obtained data were analyzed using descriptive and Chi-Square analyses. Most (67%) of the respondents were females. The present study indicated that most respondents satisfied with the services provided.
The Revitalization of Mandi Marpangir Tradition in Matondang Village, Padang Lawas Regency
Authors: Daulay Ernita , Lubis Tasnim 
Published: November 2022

Mandi marpangir is a tradition to clean body and soul at one day before holy Ramadhan and Eid Mubarak. The purpose is to have blessing during Ramadhan month until the day of Eid Mubarak. The purpose of this research was to describe the tradition, cultural values, and local wisdom of Mandi marpangir. This research focused on revitalizing Mandi marpangir according to customs and traditions in Matondang Village. The location of the research was in Matondang Village, Padang Lawas regency. The informants are residents who live in the Matondang Village. The population objects withdrawal is carried out when the researcher selects the entire population in the research location, namely fountains and rivers, which are the places where people do bathing activities. This research used qualitative descriptive method. The data were observation and depth interview. The results of the research showed that the Mandi marpangir is a tradition with a special sacred value in which the community and its surroundings flock to the shower and river by bringing Pangir to perform the bathing ritual together. The Mandi marpangir tradition begins with pounding together the Pangir that has been boiled or brought by the community, which aims to purify ourselves in welcoming the months of Ramadhan and Eid Mubarak.
"Hello, Selamat Datang!" A preliminary proposed model of Tourism interpersonal communication from an Islamic perspective amongst frontliners
Authors: Abu Hasan Nurul Nadirah , Mohd Sofian Muhammad Raqib , Mior Kamarulbaid Afiqah , Md. Ithnan Izwan Harith 
Published: November 2022

These articles explore interpersonal communication in the tourism industry. As the industry faced changes post-pandemic, there is a great reason for the industry to refine people inside the industry, especially the frontliners. Since the frontliners are the first people met and greeted by the tourist, the responsibilities of these groups of industrial players are indeed higher than others. Pieces of the literature suggest that tourism service providers must have expressive communication skills to give a superior product and create a pleasant experience for tourists. Hence, tourism frontliners are expected to be able to express effective interpersonal communication skills both internal and external communication. Interpersonal communication skills in dealing with people are one of the major demands in the industry nowadays. This has created a skills gap in the hospitality industry, which must be addressed if businesses are to remain competitive. It is suggested that the staff in tourism and hospitality should be carefully recruited and should undergo continual training because their communication skills are a significant indicator of their ability to foster favorable interactions with clients. Therefore, this conceptual paper aims to suggest an Islamic approach to improve current tourism frontliners interpersonal communications through Islamic-based communications. The need for interpersonal communication skills in the tourism industry is also highlighted in this article. An integrated model of tourism interpersonal communication with Islamic-based communication was proposed at the end of the article. It is hoped that this conceptual paper will be a stepping stone for research in tourism communication from an Islamic view.
Could Esg and Halal Practices Be Converged? Preliminary Evidence Based on Integrated Reporting And Sustainability Reporting Of A Halal-Certified Company
Authors: Ramli Nathasa Mazna , Shahrul Kamil Aimi Nurshahirah Binti , Jamil Nurul Nazlia , Haron Hasnah 
Published: November 2022

One of communication mechanism that used by corporations to state their focus, concerns and activities is corporate reports, such as annual report and stand-alone sustainability report. On top of mandatory reporting of financial statements, corporations use corporate reports to convey their philosophy, construct visibility and image. Integrated Reporting (IR) and Sustainability Reporting are two recent reporting frameworks that have been adopted by corporations. The corporations’ value creation process is the main focus of IR, which is based on six capitals of corporations. Sustainability Reporting is a way for a corporation to become more sustainable and focuses on economic, environmental and social aspects. The main objective of this study is to compare the two-reporting frameworks. Particularly, the suitability of the reporting frameworks for halal industry players to communicate their halal commitment and activities. This study also examine whether ESG and Halal practices can be converged based on the reporting framework. This study provides an analysis of corporate reports of a leading halal food manufacturer that is listed in Bursa Malaysia. Based on content analysis, this study highlights halal-related information in the company’s IR and Sustainability Reporting. Results from the study might provide evidence on non-financial reporting that may acts as a communication tool to the stakeholders. Utilizing IR and Sustainability reporting could build trust of capital market and society, thus ensure the sustainability of halal industry.