Search results

Kablov, Strategic directions of development of materials and technologies for their processing for the period up to 2030, Aviats.
Chatterjee, Engineering the next-generation tin containing titanium alloys with high strength and low modulus for orthopedic applications, J.
Antonyuk, Microstructure and properties of titanium-based materials promising for antiballistic protection, Usp.
Bernatskyi, Modern techniques for automated acquiring and processing data of diffraction electron microscopy for nano-materials and single-crystals, Mater.
Freeman, New welding techniques for aerospace engineering, in: Welding and Joining of Aerospace Materials, Woodhead Publ., 2012, pp. 3-24. https://doi.org/10.1533/9780857095169.1.1 [62] J.

Laser Surface Alloying of Aluminium Alloys with Cu/Fe Metallic Powders Wojciech Pakieła1,a*, Zbigniew Brytan1,b 1Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Department of Engineering Materials and Biomaterials, Silesian University of Technology, ul.
Introduction Presently the light metal alloys are one of the most important materials in advanced automotive and aviation industry.
Wróbel, „Influence of Plastic Strain Accumulation in Continuous Ingots during ECAP on Structure and Recrystallization Temperature of AlCu4MgSi Alloy”, Materials, t. 13, nr 3, s. 576, sty. 2020, doi: 10.3390/ma13030576
Pakieła, „Laser Surface Treatment of Sintered Stainless Steels for Wear Resistance Enhancement”, Key Eng.
Pakieła, „Laser Surface Modification of Aluminium Alloy AlMg9 with B4C Powder”, Materials, t. 13, nr 2, s. 402, sty. 2020, doi: 10.3390/ma13020402

Vibration Analysis Based Feature Extraction for Bearing Fault Detection Jie Liu1, a, Chunsheng Yang2,b, Qingfeng Lou1,c 1Dept. of Mechanical & Aerospace Engineering, Carleton University, Ottawa, Canada K1S 5B6 2National Research Council of Canada, Ottawa, Canada K1A 0R6 ajliu@mae.carleton.ca, bchunsheng.yang@nrc.gc.ca, cqlou@connect.carleton.ca Keywords: bearing; fault detection; signal processing; feature extraction; health condition monitoring; vibration.
An effective acoustic-based bearing health monitoring is acoustic emission, which is a phenomenon of transient elastic wave generation due to a rapid release of strain energy caused by a structural alteration in a solid material under mechanical and/or thermal stresses.
The method has found sound applications in a wide range of science, medical, and engineering fields, including physiology, geophysics, finance, cardiac dynamics, bioinformatics, ecology, and many more [18], but none in machine fault detection.
Nakagawa, “Fault diagnosis system for hydraulic turbine generator,” Transactions of the Institute of Electrical Engineers of Japan, Part B, vol. 122, pp. 492-497, 2002
Lee, “A comparative study on damage detection in speed-up and coast-down process of grinding spindle-typed rotor-bearing system,” Journal of Materials Processing Technology, vol. 187, pp. 30-36, 2007

Siddhartha Engineering College, Krishna (Dist), Andhra Pradesh, India, PIN: 520 007 2Department of Mechanical Engineering, P.
Lebelo et al. [13, 14] analyzed the heat transfer in a stockpile of reactive materials designed in a rectangular slab by assuming a two-step exothermic chemical reaction and the heat loss to the surrounding environment is by radiation.
Makinde, Numerical investigation of CO2 emission and thermal stability of a convective and radiative stockpile of reactive material in a cylindrical pipe, Advances in Mechanical Engineering, 7 (2015), 1-11
Moloi, Transient heat analysis in a two-step radiative combustible slab, Key Engineering Materials, 872 (2021), 15-19
Kumar, Radiation and non-uniform heat sink/source effects on 2D MHD flow of CNTs-H2O nanofluid over a flat porous plate, Multidiscipline Modeling in Materials and Structures, 16 (2020), 791-809

A Study of Digital Watermark Algorithm Based on HVS for Halftone Images Feng Chunhui1, a, Liu Quanxiang2,b 1State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, China. 2School of Printing and Packaging, Wuhan University, China.
Special printing material and special techniques are used for the purpose of fighting against the piracy of the presswork.

Maniruzzaman1,e 1Electronics and Communication Engineering Discipline, Khulna University, Khulna 9208, Bangladesh ashuvroece07@gmail.com, bshamim@ece.ku.ac.bd, cmth@ece.ku.ac.bd, dmahbub.hossain@ece.ku.ac.bd, em_m_zaman@ece.ku.ac.bd Keywords: Autonomous, hexacopter, multi-functional drone, pesticides spraying, surveillance & monitoring, aerial shooting.
Materials and Methods Construction Materials: Fiberglass composites were used to build the hexacopter drone's body, which was layered with lightweight components including plywood and foam pad.
The key simulation parameters were set as: gas type– air, wall thermal condition– adiabatic, flow type– laminar & turbulent, gravity– 9.8 meter/sec2, roughness– 0 mm, and temperature– 293.2 K.
Summary of various parameters of the multi-functional hexacopter drone Parameter/Device Type/Value Parameter/Device Type/Value Construction Material Aluminum, Fiber glass, plywood, foam pad GPS NEO-6M; Tolerance: 1 m; Refresh Rate: 5 Hz Number of Arms 06 Autopilot PixHawk 2 Arm Length 13 [inch] Flight Controller AutoPilot Mega 2.8 Propeller APC; 12´4.5 [inch] Ground Control Station Mission Planner 1.3.45 Empty Weight 5.02 [kilogram] Remote Controller Turnigy; 2.4 [GHz] Payload Capacity 4.4 [kilogram] HD Camera Turnigy; 1080 [pixel] Endurance 25 [min] 3-axis Camera Gimbal HMG YI3D Maximum Cruise Speed 36 [kilometer/hour] Video Transmitter 5.2 [GHz] Brushless dc Motor Turnigy; 1400 [kV] Telemetry RFD900 Radio Modern ESC Turnigy; 60 [A] Battery Li-Po; 11.1 [V]; 16 [Ah] System Architecture of the Hexacopter Drone The system architecture of the multi-functional drone can be divided into two basic modules: ground control station (GCS) and the drone itself.
The autonomous hexacopter consists of the following key devices: autopilot unit, GPS unit, power unit, transceiver unit, camera & gimbal, video transmitter, motors, ESCs, and pesticides spraying unit (Fig. 2(b)).

Wahab5,e 1 Faculty of Mechanical Engineering, Universiti Teknologi Malaysia Johor Bahru, Malaysia 2 UTM Razak School of Engineering and Advanced Technology, UTM International Campus Kuala Lumpur, Malaysia 3 Faculty of Mechanical and Manufacturing Engineering, TechnischeUniversität Kaiserslautern, Germany 4Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia 5Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Malaysia amujahid_1287@yahoo.com.my, bkhairur.kl@utm.my, casas2601@gmail.com, dtajul@utem.edu.my, edzuraida@eng.ukm.my Keywords:Cleaning Process; Cylinder Head; Failure Mode and Effect Analysis; Ishikawa Diagram; Remanufacturing Abstract.
The implications of the reliability, availability and maintainability aspects of engineering systems have increased substantially due to rising operational and maintenance costs.
However although the company is claiming that they use the best chemical cleaning material, but in reality they are only considering the cost impact.
Information and Software Technology, 51 (2009) 150-161. [8] Rajiv Kumar Sharma, Pooja Sharma, , Integrated framework to optimize RAM and cost decisions in a process plant, Journal of Loss Prevention in the Process Industries, 25 (2012) 883-904. [9] T.P Bagchi, N Arvind Kumar, BijoySarma, N Maitra, Problem solving in sintering of tungsten heavy alloy product - a case study,Materials Chemistry and Physics, 67 (2001) 111-119. [10] Julie K.
Design and Automation – Special Issue on Environmentally Conscious Design and Manufacturing, 4 (1998) 27-46. [23] Krill, M., Thurston, D.L, Remanufacturing: Impacts of sacrificial cylinder liners, Journal of manufacturing science and engineering, 127 (2005) 687-697. [24] Lily H.

Microstructure Evolution and Microhardness of 7075 Aluminum Alloy during Heat Treatment by Considering Hot Deformation History Sun Zhichao1,a, Yin Jilun1 and Yang He1 1 State Key Lab of Solidification Processing, Department of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, P.R.
Experimental material and method Fig. 1.
Original microstructure of as-extruded 7075 aluminum alloy The raw material of 7075 aluminum alloy was extruded bar (Φ80×1500mm) from Kunshan Huafeng aluminum industry Co., Ltd.
A higher deformation temperature can effectively reduce strain hardening degree and the dislocation density in the deforming material, further leads to a decline in stored energy.
Acknowledgments The authors would like to gratefully acknowledge the supports of National Natural Science Foundation of China (50905145, 51275560), National Basic Research Program of China (2010CB731701), the 111 Project (B08040), and Fund of State Key Laboratory of Solidification Processing in NWPU (59-TP-2010).

Methodology Materials and methods.
The materials were purchased from Sigma -Aldrich (St Louis, USA).
Chemical Engineering Journal. 273 (2015) 455-464
Chinese Journal of Chemical Engineering. 16 (2008) 6. 890-894
Chemical Engineering Journal. 307 (2016) 877-883.

,Ltd. , Guangzhou 510230, China; CCCC Key Lab of Environmental Protection & Safety in Foundation Engineering of Transportation, Guangzhou 510230, China; 2 CCCC Fourth Harbor Engineering Institute Co.
Engineering background The project is bored piles in a port engineering, low strain reflection wave method is used for discriminating pile structure integrity.
China Harbour Engineering. 2004(5): 47-48
Chinese Journal of Engineering Geophysics. 2009, 6(1): 105-110
Chinese Journal of Geotechnical Engineering. 2003, 25(3): 283-287