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Muhammad Aamir, Majid Tolouei-Rad, Ana Vafadar, Muhammad Nouman Amjad Raja and Khaled Giasin
Multi-spindle drilling simultaneously produces multiple holes to save time and increase productivity. The assessment of hole quality is important in any drilling process and is influenced by characteristics of the cutting tool, drilling parameters and ma...
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Anyuan Jiao, Guofu Zhang, Binghong Liu and Weijun Liu
In order to improve the manufacturing quality of holes (F3?F8 mm) and to optimize the hole drilling process in T300 carbon fiber-reinforced plastic (CFRP) and 7050-T7 Al alloy stacks, a prediction model of multiple objective parameter optimization was pr...
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Jin-Cherng Hsu and Yu-Shen Ma
In this study, we investigated the luminous properties of undoped cesium iodide (CsI) and Na-doped CsI (CsI:Na) films deposited by thermal vacuum evaporation and treated with different substrate temperatures, post-annealing temperatures, and deposition r...
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Alessandra Caggiano, Giulio Mattera and Luigi Nele
The drilling of carbon fiber-reinforced plastic (CFRP) materials is a key process in the aerospace industry, where ensuring high product quality is a critical issue. Low-quality of final products may be caused by the occurrence of drilling-induced defect...
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Cheng Qian, Siyu He, Wei Qin, Youcong Jiang, Zishun Huang, Meilin Zhang, Minghua Zhang, Wenwu Yang and Ying Zang
The double-hole rice vacuum seed meter is critical equipment for the planting precision of rice direct seeding. The effects of shaped holes and seed disturbance on the precision of rice bunch planting were investigated to improve the precision of bunch p...
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Ke Wu, Wenzhong Shi and Wael Ahmed
We present a hybrid approach for modeling complex interior structural elements from the unstructured point cloud without additional information. The proposed approach focuses on an integrated modeling strategy that can reconstruct structural elements and...
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Katarzyna Grondys, Iga Kott, Katarzyna Sukiennik
Pág. 104 - 109
According to the reports of WHO, air quality is deteriorating year after year. This phenomenon mainly originates in energy, industrial and transport activities of countries and cities, becoming the direct cause of global problems associated with the gree...
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Jie Yu, Dongqi Zhang, Hui Li, Changhui Song, Xin Zhou, Shengnan Shen, Guoqing Zhang, Yongqiang Yang and Hongze Wang
This paper presents a laser ultrasonic testing (LUT) method for the inspection of internal hole defects in a Ti-6Al-4V part produced by additive manufacturing (AM). The LUT system achieved a resolution in sub-millimeter scale, demonstrating its significa...
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Ziyue Wang, Fengming Li, Yu Men, Tianyu Fu, Xuting Yang and Rui Song
Robot automatic assembly of weak stiffness parts is difficult due to potential deformation during assembly. The robot manipulation cannot adapt to the dynamic contact changes during the assembly process. A robot assembly skill learning system is designed...
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Kaiying Luo, Wanhua Wu, Sihang Xie, Yasi Jiang, Shengzu Liao and Donghuan Qin
The use of solution-processed photovoltaics is a low cost, low material-consuming way to harvest abundant solar energy. Organic semiconductors based on perovskite or colloidal quantum dot photovoltaics have been well developed in recent years; however, s...
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Xiaoshun Zhao, Zhuangzhuang Hou, Jizong Zhang, Huali Yu, Jianjun Hao and Yuhua Liu
In order to improve the quality of transplanting devices and solve the problems of the poor effect on soil moisture conservation and more weeds easily growing due to the high mulching-film damage rate with an excessive number of hole openings, we develop...
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Wuxiong Weng, Changyu Wang, Guixuan Zhu, Zejun Gu, Han Tang, Jinfeng Wang and Jinwu Wang
This study is aimed at the special working conditions of seeding on sloping land, combining advanced precision seeding technology and the structure of rotary hole filling corn precision metering device seed rowers at home and abroad, and studying soil en...
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Ariadna Calcines Rosario
This paper presents the conceptual design of an on-axis 6 metre aperture space telescope designed to cover a field of view of ±0.2 degrees with an optical quality at the diffraction limit within a spectral range between 0.5 µm and 2.5 µm. The plate scale...
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Basil Onyekayahweh Nwafor, Maman Hermana and Mohamed Elsaadany
The application of geostatistics in seismic inversion techniques has been proven somewhat reliable in the delineation of reservoir properties and has recently attracted the attention of many geoscientists. However, there are cases where its prediction re...
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Ahmed Hayali, Roger J. Reeves and Maan M. Alkaisi
The efficiency and stability of perovskite solar cells (PSCs) depend not only on the perovskite film quality, but they are also influenced by the charge carriers of both the electron and hole transport layers (ETL and HTL). Doping of the carrier transpor...
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Michael Volkhonov,Anton Abalikhin,Alexander Krupin,Ivan Maximov
Pág. 44 - 51
Crushing feed grain involves hammer crushers, which are characterized by high specific energy consumption and its uneven fractional composition. It is possible to obtain high-quality shredded grain with less energy when using a centrifugal-impact crusher...
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Timothy Ryan Taylor, Chun-Tang Chao and Juing-Shian Chiou
Standard spatial domain filters fail to adequately denoise and enhance the contrast of an image. These filters have drawbacks like oversmoothing, diminished texture, and lack of generative capabilities. This paper proposes a new method of image reconstru...
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Zulfiqar Ali Zardari, Jingsha He, Nafei Zhu, Khalid Hussain Mohammadani, Muhammad Salman Pathan, Muhammad Iftikhar Hussain and Muhammad Qasim Memon
A mobile ad-hoc network (MANET) is a temporary network of wireless mobile nodes. In a MANET, it is assumed that all of the nodes cooperate with each other to transfer data packets in a multi-hop fashion. However, some malicious nodes don?t cooperate with...
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Chao-Ching Ho, Ke-Ying Shen, Chang-Sheng Chen, Yuan-Jen Chang, Jin-Chen Hsu and Chia-Lung Kuo
Laser-drilled hole arrays are part of an important field that aim to improve efficiency without affecting the quality of laser-drilled holes. In this paper, a swirling gas jet was implemented to assist with laser trepanning for a galvanometer scanned CO2...
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Guosheng Huang, Hongren Wang, Xiangbo Li and Lukuo Xing
Cold spraying is a promising method for rapid prototyping due to its high deposition efficiency and high-quality bonding characteristic. However, many researchers have noticed that holes cannot be replenished and will grow larger and larger once formed, ...
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