Breakdown Characteristics of Combined Insulation in Silicone Oil for Electric Power Apparatus

Miyahara, Hideyuki; Nakajima, A.; Wada, Junichi; Yanabu, S.

doi:10.1109/icpadm.2006.284264

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The viscosities of the oil ranged from low (0.5 and 3.5 P) and medium (100 P) to high, or "glue-like" (600 P) to simulate the viscosities encountered clinically in OME. Silicone oil has a low electrical conductance (Miyahara et al 2006) and, therefore, is not expected to interfere with CM measurements. The filling tubes, syringes, and needles were put into place before the baseline CM measurements were taken.…”

Section: Experimental Model Of Middle Ear Effusionmentioning

confidence: 99%

The Conductive Hearing Loss Due to an Experimentally Induced Middle Ear Effusion Alters the Interaural Level and Time Difference Cues to Sound Location

Thornton

Chevallier

Koka

et al. 2012

JARO

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Otitis media with effusion (OME) is a pathologic condition of the middle ear that leads to a mild to moderate conductive hearing loss as a result of fluid in the middle ear. Recurring OME in children during the first few years of life has been shown to be associated with poor detection and recognition of sounds in noisy environments, hypothesized to result due to altered sound localization cues. To explore this hypothesis, we simulated a middle ear effusion by filling the middle ear space of chinchillas with different viscosities and volumes of silicone oil to simulate varying degrees of OME. While the effects of middle ear effusions on the interaural level difference (ILD) cue to location are known, little is known about whether and how middle ear effusions affect interaural time differences (ITDs). Cochlear microphonic amplitudes and phases were measured in response to sounds delivered from several locations in azimuth before and after filling the middle ear with fluid. Significant attenuations (20-40 dB) of sound were observed when the middle ear was filled with at least 1.0 ml of fluid with a viscosity of 3.5 Poise (P) or greater. As expected, ILDs were altered by ~30 dB. Additionally, ITDs were shifted by ~600 μs for low frequency stimuli (<4 kHz) due to a delay in the transmission of sound to the inner ear. The data show that in an experimental model of OME, ILDs and ITDs are shifted in the spatial direction of the ear without the experimental effusion.

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Section: Experimental Model Of Middle Ear Effusionmentioning

confidence: 99%

The Conductive Hearing Loss Due to an Experimentally Induced Middle Ear Effusion Alters the Interaural Level and Time Difference Cues to Sound Location

Thornton

Chevallier

Koka

et al. 2012

JARO

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“…Ternary methyl groups hold onto silicon atoms to form the Si(CH 3 ) 3 OSi(CH 3 ) 3 structure. Ternary methyl groups will form 2,2,4,4-tetramethylpentane C(CH 3 ) 3 CH 2 C(CH 3 ) 3 (Miyahara et al , 2006).…”

Section: Resultsmentioning

confidence: 99%

Patterns in hammertone paints

Erkmen

2016

PRT

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Purpose The purpose of this study is to determine required paint and silicone proportions, their mixing rate and duration to eliminate the pattern problems caused by the misuse of silicone polymers in hammertone paints. Results of the findings aim at preventing raw material, manufacturing time and labour losses in hammertone paint production. Design/methodology/approach A paint formulation produced commercially was used. The effects of silicone proportion and mixing rate and paint and pigment density on the pattern formation within the paints, to which the spray painting method was applied, were investigated. Brightness controls of the produced paints were done, and the effect of the additive polymer on brightness was investigated. Photographs of paints for each practice were taken. Findings The most suitable silicone proportion and mixing conditions for the silver grey paints, in which Al non-leafing pigments were used, were calculated as 0.034-0.036 g/kg-paint and 15 s at 200 rpm, respectively. It was observed that the increase in pigment density increased required silicone proportion for the desired pattern. It was determined that mixing rate and duration were very significant in pattern formation, and that silicone decomposed and the pattern was disrupted in long-continued mixings. In addition, excess silicone use disrupted the pattern and decreased the paint brightness. Research limitations/implications This research was conducted for hammertone paints, which are industrial and self-patterned aluminium silvered decorative paints. The results can be used for hammertone paint production. Practical implications The results will enable manufacturers to produce hammertone paints more economically. Results can be used in the paint industry to produce such paint. Originality/value It is crucial to produce high-quality products using less raw materials in today’s industry, where the amount of raw materials is decreasing, and economical and reliable production is becoming increasingly important. When environmental impacts in the solvent-based paint industry are taken into consideration, paint production in shorter times is important for both workers’ and environmental health. As a result of this study, hammertone paints will be produced more economically by appropriate production conditions yet without any energy, raw material and time loss.

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Ion Mobilities in poly-dimethylsiloxane silicone oils

Yoshino

Schmidt

2014

2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)

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Breakdown Characteristics of Combined Insulation in Silicone Oil for Electric Power Apparatus

Cited by 3 publications

References 5 publications

The Conductive Hearing Loss Due to an Experimentally Induced Middle Ear Effusion Alters the Interaural Level and Time Difference Cues to Sound Location

The Conductive Hearing Loss Due to an Experimentally Induced Middle Ear Effusion Alters the Interaural Level and Time Difference Cues to Sound Location

Patterns in hammertone paints

Ion Mobilities in poly-dimethylsiloxane silicone oils

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