Sealing ability of three different materials to repair furcation perforations using computerized fluid filtration method [PDF]
Journal of Dental Research, Dental Clinics, Dental Prospects, 2021 Background. The present study aimed to evaluate the sealing ability of three different calcium silicate-based materials in furcation perforations. Methods. Seventy-six human mandibular molar teeth were selected. Perforations were created in the center of
Cemre Koç +3 more
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The effect of the gap between the cast post and residual gutta-percha and cement type on microleakage of endodontically treated teeth using the fluid filtration method [PDF]
Dental Research JournalBackground: The aim of this study was to investigate the impact of the distance between the gutta-percha and the post, as well as the type of cement used, on the incidence of microleakage in endodontically treated teeth.
Ramin Mosharraf +6 more
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Flow pattern recognition in corrugated channels between circular plates
Measurement: Sensors, 2021 The path of the fluids in corrugated channels between circular plates is an arc of varying length, i.e. the flow direction firstly disperses and then converges. However, there is a shortage of data on the flow structures in these channels. In the present
Ke Wang, Peng-Fei Wu, Bing Hu
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Performance measurement and analysis of gas coalescence filter element
You-qi chuyun, 2021 For the problem that it is difficult to separate the lubricating oil from the natural gas in the devices of offshore oil and gas platform, the performance measurement devices of gas-liquid coalescence filter elements were established in the laboratory ...
Cheng CHANG +4 more
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Analysis of Leaked Crude Oil in a Mountainous Area
Energies, 2022 China–Myanmar oil and gas pipelines in Southwest China guarantee the energy security of China. Due to poor geographical circumstances, the safety of pipelines is seriously threatened by natural disasters.
Ke Wang, Jing Peng, Jue Zhao, Bing Hu
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You-qi chuyun, 2022 The frequent fluctuation of gas flow during the storage and transportation can easily lead to the failure of filter cartridge and the shortening of its service life.
Feng CHEN +6 more
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Performance analysis and optimization of oleophobic coalescing filter element at high gas velocity
You-qi chuyun, 2023 In the long-distance transportation of natural gas, the oleophobic coalescing filter element will experience secondary entrainment and a decrease in filtration efficiency when the gas velocity is too high.
LI Yipu +7 more
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Particle Collection of Electret Media under Different Filtration Pressures
Aerosol and Air Quality Research, 2023 Electret media have the advantage of enhancing the particle collection efficiency while keeping/reducing the media pressure drop by the electrostatic mechanisms in addition to the mechanical ones.
Zhen Liu +4 more
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You-qi chuyun, 2023 Considering the inadequacy of current testing methods in satisfying the testing requirements of filter elements for lubricating oil separation in gas storage, this research aims to establish corresponding testing methods and device in the laboratory. The
WANG Zhaomin +3 more
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Evaluation of microleakage of three different endodontic sealers in the presence and absence of moisture [PDF]
Journal of Shahrekord University of Medical Sciences, 2022 Background and aims: AH26, Master-Dent, and Endoseal mineral trioxide aggregate (MTA) are three different types of sealers. The purpose of this study was to assess and compare THE apical seal of the root canal-treated teeth with the above-mentioned ...
Hamid Razavian +4 more
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