bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermal Diffusivity and Conductivity of Yttria Stabilized Zirconia Coatings Obtained by Suspension Plasma Spraying
Authors: Łatka L. , Pawłowski L. , Valette S. , Pateyron B. , Lecompte J.P. , Denoirjean A. , Cattini A. , Kumar R. 
Published: January 2023

Abstract
Plasma generated by an SG-100 torch was applied to a spray suspension formulated with the use of ZrO2+8 wt% Y2O3 (8YSZ) solid phase. The solids had a mean size of about 4.5 μm and were obtained by milling of commercial Metco 204 NS powder. The suspension was formulated with 20 wt% solid phase, 40 wt% water and 40 wt% ethanol. The plasma spray parameters were optimized with the electric power equal to 40 kW, working gases composition Ar 45 slpm and H2 5 slpm, spray distance varying from 40 to 60 mm, and torch scan linear speed varying from 300 to 500 mm/s. Coatings with thicknesses ranging from 51 to 106 μm were sprayed onto stainless steel substrates. The porosity of the samples was found from the image analysis of metallographically prepared cross-sections of the samples to be in the range of 8 to 12%. Thermal diffusivity was measured with the use of the commercial NanoFlash system in the temperature range from room temperature to 523 K. The measurements were made with the use of the coatings sprayed on the substrate, and a 2-layer numerical model was developed to determine thermal diffusivity of the coatings. The diffusivity was in the range from 0.196 × 10-6 to 0.352 × 10-6 m2/s in room temperature depending on the spray parameters. The obtained data were then associated with the literature data of density and specific heat and experimental porosity to find thermal conductivity, which was in the range of 0.47 to 0.86 W/(mK) at room temperature, depending on the spray run.
Process Conditions and Microstructures of Ceramic Coatings by Gas Phase Deposition Based on Plasma Spraying
Authors: Mauer G. , Hospach A. , Zotov N. , Vaßen R. 
Published: January 2023

Abstract
Plasma spraying at very low pressure (50-200 Pa) is significantly different from atmospheric plasma conditions (APS). Applying powder feedstock it is possible to defragment the particles into very small clusters or even to evaporate the material. As a consequence, the deposition mechanisms and the resulting coating microstructures could be quite different compared to conventional APS liquid splat deposition. Thin and dense ceramic coatings as well as columnar-structured strain-tolerant coatings with low thermal conductivity can be achieved offering new possibilities for application in energy systems. To exploit the potential of such a gas phase deposition from plasma spray-based processes, the deposition mechanisms and their dependency on process conditions must be better understood. Thus, plasma conditions were investigated by optical emission spectroscopy. Coating experiments were performed, partially at extreme conditions. Based on the observed microstructures, a phenomenological model is developed to identify basic growth mechanisms.
Influence of the Spray Angle on the Characteristics of HVOF Sprayed Coatings Processed by Means of Fine WC-12Co (2–10 μm) Powders
Authors: Tillmann W. , Baumann I. , Hollingsworth P. , Laemmerhirt I.-A. 
Published: January 2023

Abstract
The application of fine powders in the thermal spray technology represents an innovative approach to apply dense and smooth near-net shape coatings on tools with complex geometry. However, this aim can only be achieved, as long as the influence of the handling parameters of the spray process such as the spray angle are sufficiently understood. In this study the influence of the spray angle on the deposition rate as well as on the coating properties (microhardness, roughness and porosity) of HVOF-sprayed, fine-structured coatings is investigated. A fine agglomerated and sintered WC-l2Co powder (agglomerate size: 2-10 pm, WC-particle size: FSS = 400 nm) was used as feedstock material. It has been shown that HVOF spraying of fine powders is less susceptible to an alteration of the spray angle than most other thermal spray processes such as plasma- or arc-spraying. The reduction of the spray angle results in a decrease of the deposition rate, while no significant degradation of the coating properties was found up to 30°. However, at spray angles below 30° the coating strength is negatively affected by the formation of pores and cracks.
Characterization of Yttria Coatings Synthesized by Conventional DC Plasma Spray and a Novel Plasma Torch
Authors: Saeidfar M. , Salimijazi H. R. , Emadi R. , Mostaghimi J. , Pershin L. , Coyle Thomas W. 
Published: January 2023

Abstract
Yttrium oxide (Y2O3) can be used in different applications such as corrosion resistance, high temperature applications and semi-conductor production equipment due to its very high thermal and chemical stability. In the current research, yttria coatings were processed using a new type of DC plasma gun consisted of molecular gases CO2+CH4. Physical and structural properties were compared with the coating made by SG-100 plasma torch. Gas mixture of CO2+CH4 improves the torch efficiency due to its high thermal enthalpy and conductivity which leads to increased particle temperature and complete fusion of the sprayed particles during the process of coating. SEM study of the structure revealed that the coating has higher density and lower porosity compared to the coating produced by SG-100 torch. No unmelted particles can be observed in the coating. XRD analysis of the coating showed that the coating contains no amount of harmful metastable monoclinic phases. This all proves the better quality of the coatings deposited by CO2+CH4 gas mixture in comparison to the conventional coatings.
APS TriplexPro-200/-210 and HVOF K2: Comparison of Two Modern Thermal Spray Systems with Regard to Particle In-Flight and Coating Properties Using Iron Based Feedstock Materials
Authors: Bobzin K. , Schläfer T. , Warda T. , Petkovic I. , Schäfer M. , Landes K. , Forster G. , Zimmermann S. , Marques-Lopez J. , Kirner S. , Kauffeld M. , Schein J. 
Published: January 2023

Abstract
New developments in the field of thermal spraying systems (increased particle velocities, enhanced process stability) are leading to improved coating properties. At the same time innovations in the field of feedstock materials are supporting this trend. The combination of modern thermal spraying systems and new material concepts has led to a renaissance of Fe-based feedstocks. Using modern APS or HVOF systems, it is now possible to compete with classical materials for wear and corrosion applications like Ni basis (e.g. NiCrBSi) or metal matrix composites (MMC, e.g. WC/Co or Cr3C2/NiCr). The work described in this paper focuses on that combination and intends to give an analysis of the in-flight particle and spray jet properties achievable with two different modern thermal spraying systems (kerosene driven HVOF system K2, 3- cathodes APS system TriplexPro-200/-210) using Fe-based powders. The velocity fields are measured with the Laser Doppler Anemometry (LDA). Additionally, resulting coatings are analyzed metallographically with regard to their properties and a correlation with the particle in-flight properties is given. The experimental work is accompanied by computational fluid dynamics (CFD) simulations of spray jet and particle velocities, leading to a comprehensive analysis and characterization of the achievable particle properties with state-of-the-art HVOF and APS systems.
АНАЛІЗ СКЛАДОВИХ ЗМАГАЛЬНОЇ ДІЯЛЬНОСТІ ГАНДБОЛІСТІВ НАЦІОНАЛЬНОЇ ЗБІРНОЇ УКРАЇНИ НА ЄВРОПЕЙСКІЙ ПЕРШОСТІ 2022 РОКУ
Authors: Соловей Олександр , Журавель Олександр , Марков Роман , Білан Дмитро , Шеверун Владислав , Петренко Сергій 
Published: January 2023

Актуальність дослідження полягає в аналізі та оцінці складових змагальної діяльності гандболістів національної збірної команди України на європейській першості з гандболу на груповому етапі розігришу. Досягнення та рейтинги провідних національних збірних на міжнародній арені є головними компонентами підготовки їх до офіційних змагань та максимальної реалізації як командних, так і індивідуальних можливостей. Отримана інформація сприяє ефективному розвитку гандболу на національному рівні, підвищенню показників змагальної діяльності гандбольних клубів.
Мета роботи – проаналізувати і дати оцінку складовим змагальної діяльності гандболістів національної збірної команди України на європейській першості з гандболу.
Матеріали та методи. Проаналізовано гру гандболістів національної збірної команди України та їх опонентів по групі на чемпіонаті Європи з гандболу 2022 року, які кваліфікувалися до фінального турніру і виборювали престижний трофей. Дані отримані з офіційних протоколів, доступних на сайті Європейської федерації (https://ru.wikipedia.org/wiki/ Чемпіонат_Європи_з_ гандболу_серед_чоловіків_2022). Використовували теоретичний аналіз і узагальнення науково- методичної літератури і технічних протоколів у мережі Інтернет; метод системного аналізу; хронологічний метод; методи математичної статистики.
Результати проведених досліджень дозволили встановити, що показники ефективності атак знаходяться в межах від 56,3% (Франція) до 43,0% (Україна); високу майстерність виконання штрафних кидків демонстрували гандболісти збірної Сербії – 11 із 11, ефективність 100%, Хорватії – 11 із 12, 91,7%, Франції – 6 із 8, 76,0% та України – 3 із 6, 50,0%; середня максимальна швидкість кидка м’яча в ворота на груповому етапі в українських гандболістів становить 136,42 км/год; кращі показники демонстрували українські гандболісти у швидкості пересування – 8,84 м/с, а також долання максимальної дистанції – 3834,2 м. Показники змагальної діяльності можна використовувати для перевірки індивідуальних і командних техніко-тактичних дій, щоб порівняти і проаналізувати її зв'язок з командним рейтингом.
Висновки. Складові змагальної діяльності гандболістів національної збірної команди України на європейській першості характеризуються нестабільністю, як особистих, так і командних показників. Спостерігається низький рейтинг нашої команди за складовими техніко-тактичних дій та їх ефективністю. Щодо індивідуального рейтингу (допоміжна рухова активність) до п’ятірки кращих гравців матчів входили по 3-5 українських гандболістів.
PROSES PEMBELAJARAN MENGGUNAKAN STRATEGI INKUIRI DALAM MANAJEMEN BERBASIS SEKOLAH (MBS) DENGAN HASIL KEPUASAN GURU DI MADRASAH TSANAWIYAH ASSALAM MARTAPURA
Authors: Nugroho Arif Ganda , Latifah Latifah 
Published: January 2023

ABSTRACTIn this study, a teacher is expected to be able to use various learning models to increase the satisfaction of the results achieved in the learning process and school-based management with teacher satisfaction at Madrasah Tsanawiyah Assalam Martapura. In this study, the technique used by the teacher uses an inquiry strategy learning model, which means developing students' attitudes and skills so that they can become independent problem solvers. This means that the student needs to develop skeptical thinking about things and events that exist in this world. When viewed from the research design, especially descriptive research designs, there are various designs consisting of survey, observational, correlational, and causal comparisons that underlie this research method. So that it was found that there seemed to be quite a large number of schools stating that they often carried out school-based management well in accordance with applicable procedures and provisions in relation to the inquiry strategy learning process. Then from teacher satisfaction, it appears that quite a large number of teachers in fact often feel satisfied with the work they have been involved in at their school.Keywords: learning process, inquiry strategy, teacher satisfaction results, school-based management. ABSTRAKDalam penelitian ini seorang guru diharapkan mampu menggunakan berbagai macam model pembelajaran untuk meningkatkan kepuasan hasil yang dicapai dalam proses pembelajaran dan manajemen berbasis sekolah dengan kepuasan guru di Madrasah Tsanawiyah Assalam Martapura. Dalam penelitian ini Teknik yang digunakan oleh guru menggunakan model pembelajaran strategi inkuiri yang artinya mengembangkan sikap dan ketrampilan siswa sehingga mereka dapat menjadi pemecah masalah yang mandiri (independent problem solvers). Ini berarti bahwa siswa tersebut perlu mengembangkan pemikiran skeptis tentang sesuatu hal dan peristiwa-peristiwa yang ada di dunia ini. Jika dilihat dari rancangan penelitian terutama sekali rancangan penelitian deskriptif, terdapat berbagai rancangan yang terdiri atas survei, observasional, korelasional, dan perbandingan sebab akibat yang melatar belakangi metode penelitian ini. Sehingga ditemukan nampak cukup besar jumlahnya dari sekolah menyatakan sering melaksanakan manajemen berbasis sekolah dengan baik sesuai dengan prosedur dan ketentuan yang berlaku dengan kaitannya proses pembelajaran strategi inkuiri. Kemudian dari kepuasan guru, nampak cukup besar jumlahnya para guru pada kenyataannya sering merasakan puas terhadap pekerjaan yang selama ini mereka geluti di sekolahnya.
KAJIAN TERHADAP UU CIPTA KERJA KLUSTER LINGKUNGAN HIDUP ATAS DIHAPUSNYA PRINSIP STRICT LIABILITY
Authors: Listiyani Nurul , Nopliardy Rakhmat 
Published: January 2023

Indonesia adapted the concept of strict liability for the disposal of B3 (Hazardous and Toxic Materials) waste into the 1982 and 1997 Environmental Management Laws. However, only in the Environmental Management and Protection Act Number 32 of 2009 (UUPPLH), this principle more firmly listed. UUPPLH emphasizes that as long as there is an action that causes damage, the perpetrator must be responsible for restitution or compensation for damage to the victim without the need for supporting evidence. This principle has proven to be effective in instructing corporations to provide material compensation (ecosystem rehabilitation and compensation to victims) and immaterial (for example, counseling assistance to victims who have lost their livelihoods due to environmental damage). The enactment of Law Number 11 of 2020 concerning Job Creation/Omnibus Law as a national legal development policy directed at the ideological role model of legal centralism (legal centralism resulted in a shift in policy in the agrarian and environmental sectors. The abolition of the strict liability principle in the Job Creation Law will increase opportunities corporations escape legal proceedings for environmental crimes they commit and add to the burden on victims. From the normative study, it can be seen that the principle of absolute responsibility is used in carrying out a person's activity which is categorized as ultrahazardous (very dangerous) so that person has an obligation to bear all losses that arise. The disappearance of the phrase "without the need to prove an element of guilt" in the Job Creation Act is one of the setbacks in environmental law enforcement. The Job Creation Act shifts the policy of criminal sanctions against environmental crimes with administrative sanctions that are prioritized as stated in Article 82B paragraph (2) letter aKeywords: Corporation, omnibus law, strict liability, law enforcement
DAYA TERIMA DAN KANDUNGAN PROTEIN SERTA ZAT BESI PADA COOKIES DENGAN SUBSTITUSI TEPUNG JEWAWUT (Setaria italica) DAN TEPUNG IKAN KEMBUNG (Rastrelliger Kanagurta L.)
Authors: Hendrayati Hendrayati , Suaib Fatmawaty , Tamrin Abdullah , Yani Nur 
Published: January 2023

ABSTRACT The availability of nutrients that a person needs can be met from other than main meals and snacks. One of the snacks orsnackswho is becomingtrendiscookies. Cookies generally contain high energy, fat and sodium but lack protein and iron as well as fiber. If cookies are used as a snack that can overcome nutritional problems, for example stunting toddlers, the snack besides containing enough energy also has high protein and iron content. Substitution is done to increase the nutritional value of a product. Sources of food that can be used as snacks that are rich in protein and iron include barley flour and mackerel flour. This manuscript is the result of research that aims to determine the acceptability and content of protein and iron incookieswith the substitution of barley flour and mackerel flour as an alternative healthy snack. This research is an experimental research. The manufacture of cookie products with the substitution of millet flour and mackerel flour was carried out at the Food Technology Laboratory and the acceptability test was carried out in the organoleptic laboratory of the Department of Nutrition, Poltekkes, Ministry of Health, Makassar. Cookies made as many as 4 (four) formulations. Analysis of protein content using the methodMicro Kjedhaland substanceairon using method spectrophotometer. Test resultsKruskal WallisOn acceptability, from the assessment of 25 untrained panelists, the formulation with a concentration of 15% millet flour and 5% mackerel flour was the favorite in the organoleptic test. Protein and iron content in 1 serving (40 g) contains 5.28 g protein and 2.86 mg iron. Further researchers can analyze other nutrients such as fat, folic acid, vitamin B6, vitamin B12, so that these cookies can be used as a snack in overcoming anemia, as well as consumer acceptance tests and shelf life tests. Keywords: Cookies, millet, puffer fish, protein, iron Keywords: Cookies, Iron, Millet, Protein , Puffer fish
Fomulasi Minuman Fungsional Berbasis Kacang Gude dan Tempe
Authors: Chaerunnimah Chaerunnimah , Lestari Retno Sri , Asikin Hijrah 
Published: January 2023

Pigeon pea and tempeh are local foods that are rich in nutrients. This functional drink is a development of the previously made peanut drink formulation. This functional drink of gude and tempeh beans with the addition of arabic gum as a stabilizer. Analyzing the effect of adding gum arabic through organoleptic tests and knowing the food safety of this functional drink. This research is a pre-experimental research. The research design uses a one shot group design. The organoleptic analysis test used was the Friedman test. Product safety was carried out by microbiological contamination test using AMP and ALT methods. Organoletic test analysis showed that there was no difference in acceptance (p>0.005) of color, aroma, taste and texture at the concentration of gum addition (0.10%, 0.15% and 0.20%). Bacteriological test results AMP and ALT values do not exceed the maximum threshold value of microbial contamination according to SNI 3719:2014 for beverage products. Keywords : Functional drink, arabic gum, pigeon pea, tempe ABSTRAK Kacang gude dan tempe merupakan pangan lokal yang kaya dengan kandungan zat gizi. Minuman fungsional ini merupakan pengembangan dari formulasi minuman kacang gude yang telah dibuat sebelumnya. Minuman fungsioanal kacang gude dan tempe ini dengan penambahan gum arab sebagai bahan penstabil. Menganalisis pengaruh penambahan gum arab melalui uji organoleptik dan mengetahui keamanan pangan minuman fungsional ini. Penelitian ini merupakan penelitian pra ekperimental. Desain penelitian menggunakan one shot group design. Uji analisis organoleptik yang digunakan adalah uji Friedman. Keamanan produk dilakukan dengan uji cemaran mikrobiologi metode AMP dan ALT. Analisis uji organoletik adalah tidak ada perbedaan penerimaan (p>0,005) terhadap warna, aroma, rasa dan tektur pada konsentrasi penambahan gum (0,10%, 0,15% dan 0,20%). Hasil uji bakteriologi nilai AMP dan ALT tidak melebihi nilai ambang batas maksimum cemaran mikroba menurut SNI 3719:2014 untuk produk minuman. Kata Kunci : Minuman fungsional, gum arab, kacang gude, tempe
HUBUNGAN PERILAKU MASYARAKAT DENGAN PENGELOLAAN SAMPAH RUMAH TANGGA SELAMA PANDEMI COVID-19 DI KELURAHAN TAMMUA KOTA MAKASSAR
Authors: A.Irmawati A.Irmawati , Juherah Juherah , Haidah Nur 
Published: January 2023

Sampah merupakan masalah nasional yang perlu ditangani secara menyeluruh dan terpadu dari hulu hingga hilir untuk mendatangkan manfaat ekonomi, menyehatkan masyarakat, dan tidak merusak lingkungan, serta mengubah perilaku manusia. Penelitian ini bertujuan mengetahui hubungan perilaku masyarakat dengan pengelolaan sampah rumah tangga selama pandemi covid-19 di Kelurahan Tammua Kota Makassar, jenis penelitian ini adalah penelitian observasional analitik dengan rancangan penelitian secara cross sectional. Jumlah sampel sebanyak 321 orang dengan teknik pengambilan sampel secara claster random sampling. Hasil penelitian menunjukkan bahwa dari tiga variabel yang diteliti terdapat hubungan dengan pengelolaan sampah rumah tangga selama pandemi covid-19 yaitu pengetahuan (p = 0,001), sikap (p = 0,000 ), dan tindakan (p = 0,004). Kurangnya kesadaran serta perhatian masyarakat terhadap pengelolaan sampah rumah tangga sehingga disarankan kepada pemerintah mengadakan penyuluhan dan pelatihan berbasis masyarakat melalui pemilahan sampah anorganik dan organik yang bertujuan meningkatkan pengetahuan dan kesadaran perbuatan sikap kepada masyarakat.Kata kunci : Pengelolaan Sampah, Pengetahuan, Sikap, Tindakan
KUALITAS LIMBAH PABRIK PENYULINGAN DAUN CENGKEH DI DESA BALIBO KECAMATAN KINDANG KABUPATEN BULUKUMBA
Authors: Ronny Ronny , Herwin Herwin 
Published: January 2023

Pabrik penyulingan daun cengkeh di Desa Balibo Kecamatan Kindang Kabupaten Bulukumba merupakan industri swasta yang dikelolah masyarakat setempat dimana air limbah yang dihasilkan langsung dibuang ke sungai tampa melalui proses pengelolaan air limbah. Pencemaran lingkungan adalah masuk atau dimasukkannya makhluk hidup, zat, energi, dan/atau komponen lain ke dalam lingkungan hidup oleh kegiatan manusia sehingga melampaui baku mutu lingkungan hidup yang telah ditetapkan.Tujuan dari penelitian ini yaitu untuk mengetahui kualitas air limbah pada pabrik penyulingan daun cengkeh di Desa Balibo Kecamatan Kindang Kabupaten Bulukumba parameter Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) dan Total Suspended Solid (TSS). Jenis penelitian yang digunakan adalah jenis penelitian observasional dengan pendekatan deskriptif. Populasi dalam penelitian ini yaitu seluruh air limbah yang dihasilkan pabrik penyulingan daun cengkeh. Sampel dalam penelitian ini yaitu sebagian air limbah pabrik penyulingan daun cengkeh yang diambil dengan metode Grab samples untuk pemeriksaan BOD, COD dan TSS. Pengukuran sampel dilaksanakan di Labolatorium Jurusan Kesehatan Lingkungan Poltekkes Kemenkes Makassar.Hasil pemeriksaan kualitas air limbah pabrik penyulingan daun cengkeh terlihat bahwa dari 3 parameter yang diamati diperoleh 1 parameter tidak memenuhi syarat dan 2 parameter memenuhi nyarat. Berdasarkan Peraturan Menteri Lingkungan Hidup No. 5 tahun 2014 tentang baku mutu air limbah, Parameter BOD tidak memenuhi syarat dengan jumlah 62 mg/L sedangkan COD dan TSS memenuhi syarat dengan jumlah masing masing 80 mg/L dan 41,3 mg/L.Kesimpulan dari penelitian ini yaitu kualitas air limbah pabrik penyulingan daun cengkeh di Desa Balibo Kecamatan Kindang Kabupaten parameter Biochemical Oxygen Demand (BOD) tidak memenuhi syarat, parameter Chemical Oxygen Demand (COD) memenuhi syarat dan parameter Total Suspended Solid (TSS) memenuhi syarat. Disarankan untuk melakukan pengelolaan air limbah sebelum air limbah di buang ke badan air untuk mengurangi resiko lingkungan yang ditimbulkan. Kata Kunci : Kualitas Air Limbah, BOD, COD, TSS