Zobrazeno 1 - 10
of 901
pro vyhledávání: '"ultrasonic method"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract Mentha haplocalyx essential oil (MEO) has demonstrated inhibitory effects on Fusarium oxysporum. Despite its environmentally friendly properties as a natural product, the limited water solubility of MEO restricts its practical application in
Externí odkaz:
https://doaj.org/article/22be9088942a4b25b76feeccb62c86c0
Autor:
I. Istadi, Yunita Kusumawati, Teguh Riyanto, Didi D. Anggoro, Bunjerd Jongsomjit, Ari Bawono Putranto
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100843- (2024)
This research aims to improve crystal structure and pore size and adjust Brønsted to Lewis (B/L) acid site ratio of spent RFCC catalyst through ultrasound-assisted acid treatment. The catalyst performance was tested to convert palm oil into biofuel
Externí odkaz:
https://doaj.org/article/4e20789c3e484b3ab8926c7f34f9b2c2
Autor:
Haobo HE, Haixu LI, Tiannan JIANG, Liang XU, Long WANG, Jianing WANG, Peiyi PENG, Zichi GAO, Yuxin QIN, Xiaoguang LIU, Wendong XUE
Publikováno v:
工程科学学报, Vol 46, Iss 2, Pp 268-278 (2024)
To enhance the degradation rate of methylene blue (MB) in water, ultrasonication and solvothermal methods were used to prepare Fe3O4/ZIF-9 composite catalysts. The morphology of the catalyst revealed the attachment of cubic ZIF-9 particles to spheric
Externí odkaz:
https://doaj.org/article/1071f568c6984eec999a72b85e17362f
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 90, Iss 933, Pp 23-00322-23-00322 (2024)
In order to estimate the thickness of adhered thin liquid film on lubricating surface using ultrasonic method, a synthetic wave of reflected waves at the solid-liquid interface and multiple reflected waves in the thin liquid film was calculated and t
Externí odkaz:
https://doaj.org/article/51f3ebd2a57c421e8c0b17ddaf6ef8bc
Autor:
Andrzej Zyska, Mariusz Bieroński
Publikováno v:
Archives of Foundry Engineering, Vol vol. 23, Iss No 4, Pp 87-92 (2023)
The paper presents the results of calculations and measurements of the first natural frequency of castings of solid and ventilated brake discs made of gray cast iron of the EN-GJL-200 class. The tests were carried out for three types of chemical comp
Externí odkaz:
https://doaj.org/article/51aa27301fb847a9bba3692978ff28f2
Publikováno v:
Shipin yu jixie, Vol 40, Iss 1, Pp 158-166,196 (2024)
Objective: With the Polygonatum sibiricum as raw material, to develop a process for the combined extraction of Polygonatum sibiricum sponins (PSSs) and polysaccharides (PSPs), and the inhibitory activities of the extract and their complexes (PSSs-PSP
Externí odkaz:
https://doaj.org/article/f105a37f3b1b4e15b8f80fb066feaab7
Autor:
Akitoshi TAKEUCHI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 928, Pp 23-00165-23-00165 (2023)
In order to obtain the fundamental information for the measurement of thin oil film thickness adhered on lubrication surface using ultrasonic method, the ultrasonic calculation considering the scattering attenuation at each interface and the influenc
Externí odkaz:
https://doaj.org/article/d75f97cc3e5b41559be81dda232dffa3
Estimation of stresses in a massive granite using laser ultra-sonic testing and stress memory effect
Publikováno v:
Acta Polytechnica, Vol 63, Iss 1, Pp 11-18 (2023)
This paper addresses in-situ stress-estimation methods based on the Kaiser effect. The physical and mechanical properties of granite, diorite, and granodiorite samples selected at different depth intervals of the core obtained from a wellbore were ex
Externí odkaz:
https://doaj.org/article/142133738d26420c9ce32e0e4a7c30a6
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Akademický článek
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