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Dexin Wei, Chongyou Wu, Lan Jiang, Gang Wang and Hui Chen
At present, Chinese corn grain harvesters lack cleaning loss monitoring. Cleaning parameters cannot be automatically adjusted, and the loss rate is high. In view of the above problems, a cleaning loss monitoring sensor is designed, composed of a metal im...
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Dmitriy Gvozdyakov and Andrey Zenkov
This work presents a review of modern devices for spraying coal?water fuels. The efficiency of their operation was analyzed according to several criteria: the simplicity of their design (A), the fuel channel?s predisposition to clogging (B), durability i...
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Stefano Piacquadio, Dominik Pridöhl, Nils Henkel, Rasmus Bergström, Alessandro Zamprotta, Athanasios Dafnis and Kai-Uwe Schröder
Economic viability of small launch vehicles, i.e., microlaunchers, is impaired by several factors, one of which is a higher dry to wet mass ratio as compared to conventional size launchers. Although reusability may reduce launch cost, it can drive dry an...
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Nikolina Kovacev, Sheng Li, Weining Li, Soheil Zeraati-Rezaei, Athanasios Tsolakis and Khamis Essa
Additive manufacturing (AM) can revolutionise engineering by taking advantage of unconstrained design and overcoming the limitations of traditional manufacturing capabilities. A promising application of AM is in catalyst substrate manufacturing, aimed at...
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Junhong Qian, Xiaoyan Wu, Hewei Liu, Xiubao Hua, Ye Tao and Rongzhu Zhang
In order to further explore the technical difficulties involved in orienting the sparse-aperture imaging system towards practical applications, this paper proposes an optical?mechanical structure design scheme and performance simulation, as well as actua...
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Hui Tian, Xiangyu Meng, Hao Zhu, Chengen Li, Lingfei He and Guobiao Cai
The addition of aluminum (Al) to the fuel is an effective way to increase the regression rate of hybrid rocket motors (HRMs). Due to its high regression rate, the impact of the regression of combustion surface on the performance of HRMs cannot be ignored...
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Peng Wang, Yanhui Wang, Shaoqiong Yang, Wendong Niu, Xuehao Wang and Penghao Li
Engineering ceramics have extremely high values for both specific modulus and specific compressive strength, making them one of the most promising materials for enhancing the carrying capability of full ocean depth (FOD) submersibles. However, due to the...
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Shuo-Fang Liu, Tzu-Chieh Lee, Maggie McMillin, Yuan-Tai Li, Yun Li and Yuan-Chin Hsu
Microplastics are the biggest pollutants in marine ecosystems. Each year, over 8 million tons of plastic enter the oceans. Via microbes, microplastics may transport toxic chemicals into food webs. It is therefore important to create a way to remove micro...
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Mibbeum Hahn, Yeungjung Cho, Gunhee Jang and Bumcho Kim
We developed and optimized a block-type ultrasonic horn that can be used for cutting hard materials. The proposed block-type sonotrode consists of an aluminum horn and a tungsten carbide blade to increase the cutting of hard materials. We designed an ini...
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Ethan P. Hopping, Wensheng Huang and Kunning G. Xu
This paper presents the design and performance of the UAH-78AM, a low-power small Hall effect thruster. The goal of this work is to assess the feasibility of using low-cost 3D printing to create functioning Hall thrusters, and study how 3D printing can e...
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