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Casing deformation mechanisms of horizontal wells in seismically active zones: a comprehensive analysis [PDF]
Scientific ReportsThe Sichuan basin’s shale gas fields demonstrate elevated seismic activity, which poses a significant challenge in the development of shale gas. Besides, casing deformation emerges as a prominent concern, leading to substantial disruptions in shale gas ...
Hu Meng +7 more
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Active Structural Acoustic Control of an Active Casing Placed in a Corner
Applied Sciences, 2019 Electric appliances used in workplaces and everyday life often generate a low-frequency noise, which affects human body systems. Passive methods employed to reduce noise are not effective at low frequencies. The classical approach to active noise control
Anna Chraponska +4 more
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Performance Evaluation of Active Noise Control for a Real Device Casing
Applied Sciences, 2020 Reduction of noise generated by devices is an important problem, both in industrial environments where high sound pressure levels may damage hearing, and in households where the sound pressure level is usually moderate, but may cause discomfort and ...
Krzysztof Mazur +2 more
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Feedforward control of double-panel casing for active reduction of device noise
Journal of Low Frequency Noise, Vibration and Active Control, 2019 The active casing approach is a technique to reduce noise emission of devices and machinery by controlling vibrations of their casings. This method was successfully validated by the authors for a single-panel casing in previous publications.
Stanislaw Wrona, Marek Pawelczyk
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FXLMS with Multiple Error Switching for Active Noise-Cancelling Casings
Archives of Acoustics, 2019 Passive noise reduction methods require thick and heavy barriers to be effective for low frequencies and those clasical ones are thus not suitable for reduction of low frequency noise generated by devices.
Krzysztof MAZUR +4 more
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Feedforward Control of a Light-Weight Device Casing for Active Noise Reduction
Archives of Acoustics, 2016 It is possible to enhance acoustic isolation of the device from the environment by appropriately controlling vibration of a device casing. Sound insulation efficiency of this technique for a rigid casing was confirmed by the authors in previous ...
Stanislaw WRONA, Marek PAWELCZYK
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Performance Analysis of Active Structural Acoustic Control Applied to a Washing Machine
Sensors, 2022 Great efforts are undertaken by scientists and manufacturers to reduce noise generated by devices present in the human environment. This task is particularly difficult in the case of low-frequency noise; however, active noise reduction methods can be a ...
Stanislaw Wrona
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Journal of Food and Bioprocess Engineering, 2022 In this research, an active packaging system with antioxidant properties has been designed for the shelf life extension of sausage. Cotton linter-based fibrous casing has been coated with thyme and rosemary extract with different percentages (0, 2, 4 ...
Sahra Farhadi, Majid Javanmarddakheli
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A case of extravascular hemolysis with Tk‐activation [PDF]
Clinical Case Reports, 2014 Key Clinical MessageA 50‐year‐old female with ovarian cancer for 4 years presented with abdominal pain. She started antibiotics for possible infection, and developed extravascular hemolysis. All antigen detection tests were negative, but lectin panel suggested Tk‐activation.
Yamada, Chisa, Davenport, Robertson D.
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Archives of Acoustics, 2020 Nowadays, noise generated by devices is a serious issue in industry and in everyday life, because it may cause health damage to humans. In this research, a cubic rigid device casing built of double-panel thin steel walls is employed to reduce noise ...
Anna CHRAPOŃSKA +4 more
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