发布求助
文献互助 智能选刊 最新文献

Bubble science engineering and technology最新文献

筛选
英文 中文
Oxygen re-absorption characteristics of aviation turbine fuel 航空涡轮燃料的氧重吸收特性
Bubble science engineering and technology Pub Date : 2014-07-17 DOI: 10.1179/1758897913Y.0000000009
J. Henshaw, J. Lam
{"title":"Oxygen re-absorption characteristics of aviation turbine fuel","authors":"J. Henshaw, J. Lam","doi":"10.1179/1758897913Y.0000000009","DOIUrl":"https://doi.org/10.1179/1758897913Y.0000000009","url":null,"abstract":"This study addresses oxygen re-absorption characteristics of an oxygen depleted, quiescent body of Jet A-1 fuel when sparged with air. A small scale test set-up has been specifically designed and used to investigate the effects of air flowrate, exposed sparger surface area and sparger porosity upon the time period for fuel to reach a near fully saturated condition (the regeneration time). Analysis of the results show sparger surface area to be the most significant variable in affecting the normalised rate of change of regeneration time, although the effects of air flowrate and sparger porosity are also highly significant. Non-linear regression analysis has provided mathematical expressions relating %O2 saturation to time for each combination of the independent variables tested. Scaling laws are also proposed (using dimensional analysis) such that the laboratory results may be projected to a dimensionally similar prototype. Through the dimensional analysis, equations are derived allowing sensitivity of the...","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"17 1","pages":"5-14"},"PeriodicalIF":0.0,"publicationDate":"2014-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84914481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Air bubble changes from 6–7 kHz ultrasonic exposure in 20°C plain water 气泡变化从6-7千赫超声波暴露在20°C的清水
Bubble science engineering and technology Pub Date : 2012-11-01 DOI: 10.1179/1758897912Y.0000000007
P. W. Higgins, C. Lengsfeld
{"title":"Air bubble changes from 6–7 kHz ultrasonic exposure in 20°C plain water","authors":"P. W. Higgins, C. Lengsfeld","doi":"10.1179/1758897912Y.0000000007","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000007","url":null,"abstract":"Rectified heat and mass transfer in rising air bubbles in water are studied to assess bubble management by insonation, a possibility which might be useful in various applications which use generated air bubbles of comparable size in processes below boiling. A model is presented to predict volume and mass change in ultrasonically insonated 0·2–0·8 mm air bubbles in water. Comparison of model results to experimental data of tracked bubble streams rising at 20–30 cm s−1 shows the model predicts the experimental trends capturing rapid growth and shrinkage as a function of insonation frequency to bubble resonant frequency. Rectified heat and mass transfer in altering bubble size involving only sensible heat is much less than when latent heat is a factor, but it can be significant near a match between the bubble’s resonant frequency and the insonation frequency. Contributing mechanisms for oscillating bubble mass change are examined.","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"54 1","pages":"53-62"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85819618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Model for growth of bubbles during proofing of viscoelastic dough 粘弹性面团打样过程中气泡生长模型
Bubble science engineering and technology Pub Date : 2012-11-01 DOI: 10.1179/1758897912Y.0000000008
G. Narsimhan
{"title":"Model for growth of bubbles during proofing of viscoelastic dough","authors":"G. Narsimhan","doi":"10.1179/1758897912Y.0000000008","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000008","url":null,"abstract":"A model for growth of bubbles during proofing of bread dough is presented for infinitely dilute as well as finite volume fraction gas dispersions. The model accounts for diffusion of CO2, produced by fermentation, along with the resistance to bubble expansion by the viscoelasticity of the dough as described by Oldroyd-B constitutive equation. The model predicts evolution of bubble size, bubble growth rate and the profiles of CO2 concentration and normal stresses in the vicinity of the gas bubble. The growth of bubbles exhibits a lag time followed by an exponential growth phase. The lag time is found to be smaller for larger dough relaxation time, larger surface tension, smaller dough viscosity, higher temperature, higher gas volume fraction and higher CO2 production rate. The bubble growth rate is larger for smaller bubbles resulting in crossover of bubble size at longer times.","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"24 1","pages":"63-71"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85232478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Nesting microbubbles: influence on acoustic activity and image brightness 嵌套微气泡:对声活动和图像亮度的影响
Bubble science engineering and technology Pub Date : 2012-11-01 DOI: 10.1179/1758897912Y.0000000006
A. Bartolomeo, S. Dicker, J. Dierkes, S. Wrenn
{"title":"Nesting microbubbles: influence on acoustic activity and image brightness","authors":"A. Bartolomeo, S. Dicker, J. Dierkes, S. Wrenn","doi":"10.1179/1758897912Y.0000000006","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000006","url":null,"abstract":"In the following study, gas filled microbubbles encapsulated in a polymer shell were characterised for use as contrast agents, as compared to commercially available contrast agents such as Definity microbubbles. The lifetime of these nested microparticles was also explored. It was found that even with changing the contrast agent due to the enclosure in a polymer shell, the acoustic response using Definity microbubbles and nested microparticles can be matched by simply varying the starting concentrations, and there is no change in their behaviour as a contrast agent. The results also indicate the ability of the nested microparticles to provide contrast steadily for up to 1·5 h.","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"42 1","pages":"78-84"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82816942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Quantification of cell death due to ultrasound therapy with both traditional and nested microbubbles 用传统和嵌套微泡超声治疗细胞死亡的定量分析
Bubble science engineering and technology Pub Date : 2012-11-01 DOI: 10.1179/1758897912Y.0000000005
J. Dierkes, S. Dicker, A. Bartolomeo, S. Wrenn
{"title":"Quantification of cell death due to ultrasound therapy with both traditional and nested microbubbles","authors":"J. Dierkes, S. Dicker, A. Bartolomeo, S. Wrenn","doi":"10.1179/1758897912Y.0000000005","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000005","url":null,"abstract":"This work is a quantitative, in vitro investigation of cell death caused by ultrasound (US) therapy with two microbubble formulations, one typical and one nested in the aqueous core of a polymer microcapsule. In the case of un-nested mircobubbles, no cell death was observed below the inertial cavitation threshold, but cell death increased with increasing microbubble concentration and with peak negative ultrasound pressure at pressures exceeding the inertial cavitation threshold. Little to no cell death was observed with nested microbubbles, irrespective of the occurrence of inertial cavitation. We attribute the increased cell viability both to an increase in the inertial cavitation threshold and to absorbance of the energy of inertial cavitation by the outer PLA shell. Nested microbubbles can thus be considered safer than traditional, un-nested contrast agents for imaging without sacrificing the quality of the image.","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"1 1","pages":"72-77"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89760960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Unsteady rising of clean bubble in low viscosity liquid 低粘度液体中洁净气泡的非定常上升
Bubble science engineering and technology Pub Date : 2012-05-01 DOI: 10.1179/1758897912Y.0000000002
J. Gordillo, Benjamin Lalanne, F. Risso, D. Legendre, S. Tanguy
{"title":"Unsteady rising of clean bubble in low viscosity liquid","authors":"J. Gordillo, Benjamin Lalanne, F. Risso, D. Legendre, S. Tanguy","doi":"10.1179/1758897912Y.0000000002","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000002","url":null,"abstract":"When a submerged bubble is initially at rest in a stagnant low viscosity liquid such as water, buoyancy forces accelerate the bubble upwards. The increasing relative velocity of the bubble with the surrounding liquid provokes deformations on the bubble shape that affect its vertical acceleration and also induce surface tension driven oscillations. Our theoretical model, which is compared with full Navier–Stokes simulations predicts, with a reasonable accuracy, both the position of the bubble centre of mass, as well as the time varying bubble shape under those conditions for which the Reynolds number is large, the amplitude of the deformation is small, the bubble interface is free of surfactants and the bubble rises following a straight vertical path. The model can be used as a first approximation to describe the initial instants of the unsteady buoyancy driven rising of millimetre sized bubbles typically generated in water aerators.","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"4 1","pages":"4-11"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85105560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Collection of collapsing bubble driven phenomena found in champagne glasses 收集在香槟杯中发现的气泡驱动现象
Bubble science engineering and technology Pub Date : 2012-05-01 DOI: 10.1179/1758897912Y.0000000001
G. Liger-Belair, T. Séon, A. Antkowiak
{"title":"Collection of collapsing bubble driven phenomena found in champagne glasses","authors":"G. Liger-Belair, T. Séon, A. Antkowiak","doi":"10.1179/1758897912Y.0000000001","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000001","url":null,"abstract":"A simple glass of champagne or sparkling wine may seem like the acme of frivolity to most of people, but in fact it may rather be considered as a fantastic playground for any fluid physicist. In this tutorial review, the collapse of gaseous CO2 bubbles found at the free surface of a glass poured with champagne is depicted, through high speed photography and high speed video cameras. A collection of collapsing bubble driven phenomena are gathered, which illustrate the fine interplay between bubbles and the fluid around.","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"70 1","pages":"21-34"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80288577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Scaled-Up Production of Monodisperse, Dual Layer Microbubbles Using Multi-Array Microfluidic Module for Medical Imaging and Drug Delivery. 多阵列微流控模块用于医学成像和药物输送的单分散双层微泡规模化生产。
Bubble science engineering and technology Pub Date : 2012-05-01 DOI: 10.1179/1758897912Y.0000000004
Michael R Kendall, David Bardin, Roger Shih, Paul A Dayton, Abraham P Lee
{"title":"Scaled-Up Production of Monodisperse, Dual Layer Microbubbles Using Multi-Array Microfluidic Module for Medical Imaging and Drug Delivery.","authors":"Michael R Kendall,&nbsp;David Bardin,&nbsp;Roger Shih,&nbsp;Paul A Dayton,&nbsp;Abraham P Lee","doi":"10.1179/1758897912Y.0000000004","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000004","url":null,"abstract":"<p><p>The production of uniform-sized and multilayer microbubbles enables promising medical applications that combine ultrasound contrast and targeted delivery of therapeutics, with improvements in the consistency of acoustic response and drug loading relative to non-uniform populations of microbubbles. Microfluidics has shown utility in the generation of such small multi-phase systems, however low production rates from individual devices limit the potential for clinical translation. We present scaled-up production of monodisperse dual-layered microbubbles in a novel multi-array microfluidic module containing four or eight hydrodynamic flow-focusing orifices. Production reached 1.34 × 10(5) Hz in the 8-channel configuration, and microbubble diameters in the high-speed regime (> 5 × 10(4) Hz) ranged between 18.6-22.3 μm with a mean pooled polydispersity index under 9 percent. Results demonstrate that microfluidic scale-up for high-output production of multilayer bubbles is possible while maintaining consistency in size production, suggesting that this method may be appropriate for future clinical applications.</p>","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"4 1","pages":"12-20"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1179/1758897912Y.0000000004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30963572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
Evidence for ascending bubble driven flow patterns in champagne glasses, and their impact on gaseous CO2 and ethanol release under standard tasting conditions 香槟酒杯中上升气泡驱动流动模式的证据，以及它们在标准品尝条件下对气态二氧化碳和乙醇释放的影响
Bubble science engineering and technology Pub Date : 2012-05-01 DOI: 10.1179/1758897912Y.0000000003
G. Liger-Belair, C. Cilindre, F. Beaumont, P. Jeandet, G. Polidori
{"title":"Evidence for ascending bubble driven flow patterns in champagne glasses, and their impact on gaseous CO2 and ethanol release under standard tasting conditions","authors":"G. Liger-Belair, C. Cilindre, F. Beaumont, P. Jeandet, G. Polidori","doi":"10.1179/1758897912Y.0000000003","DOIUrl":"https://doi.org/10.1179/1758897912Y.0000000003","url":null,"abstract":"A simple glass of champagne or sparkling wine may seem like the acme of frivolity to most of people, but in fact it may rather be considered as a fantastic playground for any fluid physicist or physicochemist. In this tutorial review, some recent investigations on ascending bubble driven flow patterns found in various champagne glasses, and their impact on gaseous carbon dioxide and ethanol release under standard tasting conditions, are reported. Ascending bubble driven flow patterns found in the bulk of various glasses were evidenced, through laser tomography techniques, which illustrate the fine interplay between ascending bubbles and the fluid around. Moreover, spontaneous and self-organised two-dimensional convective cells were also evidenced at the air/champagne interface. In addition, the simultaneous monitoring of gaseous CO2 and ethanol in the headspace of both a flute and coupe filled with champagne was reported, depending on whether or not the glass shows effervescence. Both gaseous CO2 and etha...","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"65 1","pages":"35-48"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74913098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Characterisation of polymer shelled microbubbles in wall less flow phantom using high frequency ultrasound and video microscopy. 用高频超声和视频显微镜研究无壁流模中聚合物壳微泡的特性。
Bubble science engineering and technology Pub Date : 2011-11-01 DOI: 10.1179/1758897911Y.0000000005
P V Chitnis, P Lee, P A Dayton, J Mamou, J A Ketterling
{"title":"Characterisation of polymer shelled microbubbles in wall less flow phantom using high frequency ultrasound and video microscopy.","authors":"P V Chitnis, P Lee, P A Dayton, J Mamou, J A Ketterling","doi":"10.1179/1758897911Y.0000000005","DOIUrl":"10.1179/1758897911Y.0000000005","url":null,"abstract":"<p><p>A high frequency ultrasound pulse echo system and a video microscope were combined to investigate the relationship between backscatter from polymer shelled ultrasound contrast agents (UCAs) and their diameter. Individual UCAs (manufactured by Point Biomedical or Philips Research) were imaged while being sonicated with 40 MHz tone bursts. The backscatter magnitude produced by the Philips UCAs was proportional to UCA size, which is consistent with theoretically predicted behaviour of encapsulated microbubbles driven at frequencies above resonance. Despite being smaller, the Point UCAs produced a backscatter magnitude twice that of Philips UCAs, indicating that Point UCAs might behave quasi-resonantly when excited at 40 MHz.</p>","PeriodicalId":88410,"journal":{"name":"Bubble science engineering and technology","volume":"3 2","pages":"73-78"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3686316/pdf/nihms337265.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31528422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信