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Guofang Nan, Sirui Yang and Dengliang Yu
When the dual rotor system of the aircraft engine is operating, the mass eccentricity of the power turbine rotor and the misalignment of the shaft coupling or the bearing will cause too large vibration of the rotor; this vibration leads to the rub-impact...
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Haopeng Zhang, Runhan Li, Kuan Lu, Xiaohui Gu, Ruijuan Sang and Donglin Li
The twin-spool rotor-bearing system plays a crucial role in the aero-engine. The potential manufacturing defect, assembly error, and abnormal working loads in the rotor-bearing system can induce multiple rotor failures, such as bolt looseness and rub imp...
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Shining Han, Yanxi Liu, Anor Bao, Tongtong Jiao, Hua Zeng, Weijie Yue, Le Yin, Miao Xu, Jingmei Lu, Ming Wu and Liquan Guo
The COP9 signalosome (CSN) is a conserved protein complex, with CSN1 being one of the largest and most important subunits in the COP9 complex. To investigate the N-terminus function of OsCSN1, we edited the N-terminus of OsCSN1 and found that the mutant ...
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Yahya Tashtoush, Noor Abu-El-Rub, Omar Darwish, Shorouq Al-Eidi, Dirar Darweesh and Ola Karajeh
Code readability and software complexity are considered essential components of software quality. They significantly impact software metrics, such as reusability and maintenance. The maintainability process consumes a high percentage of the software life...
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Jan-Olaf Meynecke, Johan Gustafon and David E. Cade
Cetaceans are known for their intelligence and display of complex behaviours including object use. For example, bowhead whales (Balaena mysticetus) are known to rub on rocks and some humpback whale (Megaptera novaeangliae) populations undertake lateral b...
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Anitha Kumari Azmeera, Prakash Jadhav and Chhaya Lande
Upgrading abradable or wearable coatings in the high-temperature zone of aero engines is advised to increase the efficiency and high-density power in gas turbine engines for military or commercial fixed-wing and rotary-wing aircraft. The development of t...
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Shan Zeng, Sigui Luo, Fei Wang, Xifan Lan, Xinrui Ma and Yuxin Lu
Squeeze film dampers are often used to suppress vibration in turbine engines and play an important role in rotor systems. In this paper, the nonlinear dynamic characteristics of an industrial turbine engine fitted with squeeze film dampers are investigat...
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Ola Karajeh, Dirar Darweesh, Omar Darwish, Noor Abu-El-Rub, Belal Alsinglawi and Nasser Alsaedi
Social media sites are considered one of the most important sources of data in many fields, such as health, education, and politics. While surveys provide explicit answers to specific questions, posts in social media have the same answers implicitly occu...
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Minghong Jiang, Zhaoli Zheng, Yonghui Xie and Di Zhang
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Jonas Aust and Dirk Pons
Risk assessment methods are widely used in aviation, but have not been demonstrated for visual inspection of aircraft engine components. The complexity in this field arises from the variety of defect types and the different manifestation thereof with eac...
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