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In this volume of "International Journal of Engineering Research in Africa" are included peer-reviewed manuscripts reflecting the research results in materials processing and corrosion protection, fluid mechanics, power engineering, microgrid, and power electronics, wastewater and water treatment, irrigation, building materials, and system for the automation product design.
The presented scientific articles can be appreciated by the majority of engineers, academic teachers, and students majoring in the fields of engineering science.

The other less important document types were editorial materials (351; 1.77%), reviews (254; 1.28%), book reviews (154; 0.78%), news items (107; 0.54%), meeting abstracts (23), letters (20), corrections (10), book chapters (3), correction addition (1), and software review (1).
SCIE database contributed 14 journals and was the main database for Web of Science, compared to 12 journals in SSCI, which suggests the multidisciplinary perspective in EC research.
Overall, Computer Science Information Systems (7,483; 37.7%) was the highest, contributing 1,773 journal articles and 5,537 proceedings papers, followed by Business (4,590; 23.1%) with 1,765 journals articles and 2,564 proceedings papers.
Note that Information Science Library Science (52.4%), Engineering Multidisciplinary (44.8%), and Management (41.0%) were ranked as the top three by share of journal articles.
There was no dramatic change in the ranks of other categories, such as Computer Science Theory Methods, Computer Science Artificial Intelligence, Information Science Library Science, etc.

Experimental Study on Cavitation Boundary of Journal Bearing Ying Yang1,a, Li Xu1,b, Wenqing Liu 1,c 1College of Mechanical Engineering, Hunan University of Arts and Science, Changde, China ,415000 aying0729@gmail.com, b13599593@qq.com, clllwq@126.com Keywords: Cavitation shape, Rupture location of oil film, Reformation location of oil film, Experimental equation Abstract.
Cavitation boundary of a three-groove journal beaing was investigated on the journal bearing experimental rig.
Its material is glass in order to observe conveniently the shape of cavitation zone.
Acknowledgments The authors are grateful for the support of the Project Supported by the Education Department of Hunan Province (No. 12C0819), the support of the Doctor Startup Project Supported by Hunan University of Arts and Science (No.
Journal of Shanghai University(Natural Science), Vol.3(1997), p. 500-507

Rosén, Wallenberg, Initiative Materials Science for Sustainability, Stockholm University, Sweden, (2022)
Cullen, Toward a sustainable materials system, Science, 360 (6396), (2018), 1396 - 1398
Sharma, Advanced materials contribution towards sustainable development and its construction for green buildings, Materials Today Proceedings Journal, 68, (2022), 968–973
Mohan, Sustainable and environmentally friendly energy materials, Materials Today Proceeding Journal, 69, (2022), 494–498
Zain, Sustainable Material: Challenges and Prospect, Journal of Advanced Research in Materials Science, 57(1), (2019), 7 – 18

Most of the articles were published on Journal of Hazardous Materials, Water Research and Water Science & Technology.
The top 10 journals published 497 articles in total, approximately 26.7% of all.
Table 6 shows that the most articles published in three journals, Journal of Hazardous Materials, Water Research and Water Science and Technology.
Table 6 Journal distribution No.
Name of Journal Number of Article 1 Journal Of Hazardous Materials 83 2 Water Research 73 3 Water Science And Technology 68 4 Journal Of Molecular Catalysis A: Chemical 49 5 Chemosphere 48 6 Environmental Science And Technology 44 7 Applied Catalysis B: Environmental 35 8 Applied Catalysis A: General 33 9 Chemical Engineering Journal 33 10 Dyes And Pigments 31 Total 497 Country Distribution Related literatures were published in 60 countries.

CFD Analysis of Hydrodynamic Pressure Distribution in Non-Newtonian Oil in Journal Bearing Lubrication Gap Adam CZABAN Gdynia Maritime University, Morska 81-87, PL-81-225 Gdynia, Poland aczaban@am.gdynia.pl Keywords: journal bearing, hydrodynamic pressure distribution, CFD, Ostwald–de Waele lubricant.
This paper presents the results of CFD analysis of the hydrodynamic pressure distribution in slide journal bearings lubricated by non-Newtonian oil.
This paper presents the results of CFD analysis of the hydrodynamic pressure distribution in slide journal bearings lubricated by non-Newtonian oil.
The rotational speed of bearing journal ω = 300 rad/s (2865 rpm).
Descombes, CFD model for turbocharger journal bearing performances, Applied Thermal Engineering 31 (2011) 811–819

This volume of the journal "Advanced Materials Research" presents the regular special issue of the series "Advanced Materials and Technologies" and collected peer-reviewed stand-alone papers, describing the research results and engineering solutions, which deal with actual problems in the area of materials science and materials processing technologies.

Abstract With wood being a versatile material, man has made several innovations from time to time, for maximum utilization of the same, singly or jointly with other materials.
To offset some of the deficiencies in wood composites with thermoplastic materials, a new process of photo-fabrication has been innovated with thermosetting materials.
Sekhar: Key Engineering Materials Vol. 380, (2008) pp.181-189
[8] Georg Avramidis and others: Plasma treatment of wood and wood based materials, Wood material Science and Engineering 1(2) (2009) pp. 52-60
Kumar, Khoo Chin Hee, H.D.Rozman: Journal of Applied Polymer Science Vol. 95(6) (2005) 1493-1499

This volume of the journal "Advanced Materials Research" is collected from peer-reviewed stand-alone papers describing the results of research and engineering solutions dealing with actual problems in the area of materials science and materials processing technologies.

With the continuous progress of science and technology, especially with the continuous development of material science, many new materials are applied to all kinds of sports equipment and equipment.
With the continuous progress of science and technology, metal material, mainly aluminum, steel and other materials are applied to the tennis racket of R & D and production of metal materials.
In the industry wide meat YONEX company has the world's largest material science laboratory, for the study of carbon materials, graphite, carbon fiber materials and memory metal material has made many breakthroughs.
Materials research departments of these companies also continuously research model related to new materials, and continuously explore new carbon fiber composite materials, carbon fiber material and new areas of application, made a great contribution to human progress in science and technology.
Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, Volume 15, Issue 6, December 2008, Pages 808-815