LECTURE 5: Fluid jets 5 1 The shape of a falling fluid jet

5 2 The Plateau-Rayleigh Instability We here summarize the work of Plateau and Rayleigh on the instability of cylindrical fluid jets bound by surface tension It is precisely this Rayleigh-Plateau instability that is responsible for the pinch-off of thin water jets emerging from kitchen taps (see Figure 2) 2 Figure 2: The capillary-driven instability of a water thread falling under the

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Surfactant

surfactant is a chemical that sounds like a detergent — which it is If you could get enough you could try it in a dishwasher although it would froth too much: the word is from 'surf' or sea-froth The most important site of surfactant is the lining of the alveoli of the lungs Here it reduces the force needed to inflate the lungs and allows comfortable quiet breathing If you compare

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New surfactant classes for enhanced oil recovery and their

New surfactant classes for enhanced oil recovery and their tertiary oil recovery potential Stefan Iglauera Yongfu Wua Patrick Shulera Yongchun Tanga ⁎ William A Goddard III b a Division of Chemistry Chemical Engineering Power Energy Environmental Research (PEER) Center California Institute of Technology Covina CA 91722 United States b Division of Chemistry Chemical

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D

D-W SURFACTANT decreases the surface tension of the spray allowing for increased spreading and more uniform coverage on leaf and stem surfaces DIRECTIONS FOR USE D-W SURFACTANT can be used with agricultural industrial forestry aquatic and turf products that recommends a wetter-spreader type adjuvant Add pesticides and other related products to the spray mixture before adding D-W

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Alkyl polyglycoside surfactant–alcohol cosolvent

Alkyl polyglycoside surfactant–alcohol cosolvent formulations for improved oil recovery Stefan Iglauer a Yongfu Wu Patrick Shulera Yongchun Tang ∗ William A Goddard IIIb a Division of Chemistry Chemical Engineering Power Energy Environmental Research (PEER) Center California Institute of Technology Covina CA 91722 United States b Division of Chemistry Chemical Engineering

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Surfactant Science: Principles and Practice

Surfactant Science: Principles and Practice Prof Steven Abbott Steven Abbott TCNF Ltd Ipswich UK and Visiting Professor University of Leeds UK stevenstevenabbott uk Version history: 1 0 0 20 September 2015 Initial release 1 0 1 23 September 2015 Addition of surfactant solubilizers 1 0 2 26 January 2016 Minor mods

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Surfactant Analysis

Complex surfactant formulations may contain dozens of components at vastly varying concentration levels requiring a multidisciplinary approach A coordinated approach can be required which bring together skills in extraction separation science and spectroscopy Intertek has the required expertise in this area from the years of experience inside ICI and other large surfactant manufacturers

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SURFACTANT [Spreader

SURFACTANT [Spreader - Sticker] Get a Quote! Pesticides are designed to reduce and eliminate unwanted insects and weeds This doesn't mean that they are properly formulated to penetrate soil or adhere to foliage That's why Share developed SURFACTANT When added to pesticide solutions it reduces the surface tension of these solutions to penetrate the soil and foliage quicker This makes

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SURFACTANT FOR HERBICIDES

Product Name: Surfactant for Herbicides Company: Southern Agricultural Insecticides Inc P O Box 218 Palmetto FL 34220 Recommended use: Surfactant wetting agent spreader Recommended restrictions: None available Synonyms: Non-ionic surfactant Emergency Telephone Nymber: ChemTrec Tel: 1-800-424-9300 2 Hazard Identification GHS classification: Health hazards: Skin

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What Is the Function of Surfactant?

Surfactant prevents the lungs from collapsing by reducing surface tension throughout the lungs Surface tension is the main force that is present within the alveoli of the lungs Without surfactant the surface tension present in the lungs causes the alveoli to stick together during expiration which causes both lungs to collapse Surfactant forms a thin film that covers that alveoli and

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Surfynol 104 Surfactant

Surfynol 104 surfactant can be used in coatings for high gloss finishes like those used on automobiles printing inks for newspapers and gift-wrap and wood staining products that are easy to apply Uses and Benefits Surfynol 104 surfactant is a wetting and foam control agent Its unique chemical structure provides performance benefits in many waterborne applications such as paints inks

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Removal of surfactant from industrial wastewaters by

Removal of surfactant from industrial wastewaters by coagulation flocculation process 1*M A Aboulhassan 1S Souabi 2A Yaacoubi and 3M Baudu 1Laboratoire de Gnie de l'Eau et de l'Environnement Facult des Sciences et Techniques BP 146 Mohammedia Maroc

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SURFACTANT AND MICELLAR FLOODING

SURFACTANT AND MICELLAR FLOODING 12/26/2017 Dr Helmy Sayyouh 1 Dr Helmy Sayyouh Petroleum Engineering Cairo University Introduction •A surfactant reduces the oil-water interfacial tension and increases the oil displacement efficiency •Surfactant flooding has been employed mostly in light oil reservoirs but could also be considered in the case of moderately viscous oils 12/26/2017 Dr

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Respiratory Distress Syndrome (RDS)

surfactant have been demonstrated to be additive in improving lung function 2 Exogenous surfactant: It has been shown in multiple randomized controlled trials that the use of exogenous surfactant in preterm infants improves oxygenation decreases air leaks reduces mortality due to

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Surfactant Guide for Personal Care Europe

Surfactant Guide for Personal Care Europe Product Information Application Performance Application (use as primary or co-surfactant) Formulation Advice: Claim Support Trade : Name INCI Name: Type Active Matter % (av ) Eco: Status : Type Sulfat Surfactant: EO Sham-poo Baby: Body Wash Liquid Soap: Facial Wash Oral: Care Foam: Salt Thicke-ning: Recom pH: Mild-ness : Skin Sensory

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UNIVERSITTSKLINIKUM HAMBURG

von Surfactant war bei inkonsistenten Studienresultaten mit nahezu fehlendem Effekt auf den Gasaustausch bisher keine Alternative (Jorch et al 1997 Berggren et al 2000) Nasopharyngeale Applikation unter der vaginalen Geburt (Kattwinkel et al 2004) und auch der Gebrauch von Larynxmasken (Trevisanuto et al 2005 Brimacombe et al 2004) waren fr Kinder unter 25 SSW

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Clinical Guidelines (Nursing) : Surfactant Administration

Surfactant Administration in the NICU Introduction Aim Definition of Terms Assessment Dosing Management Special Considerations Companion Documents Links Evidence Table References Introduction Pulmonary surfactant is a complex mixture of phospholipids and proteins that creates a cohesive surface layer over the alveoli which reduces surface tension and maintains alveolar stability

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Surfynol 104 Surfactant

Surfynol 104 surfactant can be used in coatings for high gloss finishes like those used on automobiles printing inks for newspapers and gift-wrap and wood staining products that are easy to apply Uses and Benefits Surfynol 104 surfactant is a wetting and foam control agent Its unique chemical structure provides performance benefits in many waterborne applications such as paints inks

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Isethionate Surfactant Iselux

Isethionate Surfactant Iselux INCI Name: Sodium Lauroyl Methyl Isethionate CAS No: 928663-45-0 REACH No 01-2119401252-59-0000 EINECS No 700-150-3 Iselux is our latest technological breakthrough in surfactant chemistry Iselux is an extremely mild surfactant that can be used in formulations as a primary or secondary

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List of Lung surfactants

Lung surfactants are made from animal lung extract and contain phospholipids Natural surfactant is produced by the alveolar cells in the lungs and line mainly the alveoli and small bronchioles and prevents the alveoli from collapsing Lung surfactant makes it easier for oxygen to penetrate the lung surface lining and move into the blood Without the lung surfactant it would be extremely hard

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Applications and Use of Microemulsions

solution"4 and that in a microemulsion the surfactant is located at a certain boundary between the oil and aqueous phases giving the microemulsion a definite microstructure The abovementioned surfactant molecules in most cases comprise of a polar head which make up a small fraction of the molecular volume and a non-polar tail These two regions allow them to interact with the polar

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Manual for surfactant titration by Yu Bian

Surfactant sample should be diluted within the range of 10-2-10-5 M to get accurate result Concentrations between 10-4-10-5 M help preserve electrode life Corresponding titration concentration is selected according to Table 2-1 For every 50 ml of sample use 1ml of Triton X-100 described in 2 2 3 Adjust pH to 2 5 to 4 5 for anionic surfactants to 3 0 for cationic surfactants by addition

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Rationale for Selection of Dissolution Media: Three Case

6 Dissolution Technologeis | AUGUST 2013 Rationale for Selection of Dissolution Media: Three Case Studies Nikoletta Fotaki1 William Brown2 Jianmei Kochling3 Hitesh Chokshi4 Hai Miao5 Kin Tang4 and Vivian Gray7 * 1University of Bath Bath UK 2United States Pharmacopeial Convention Rockville MD USA 3Genzyme Waltham MA USA 4Roche Nutley NJ USA

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STEPAN CHINA SURFACTANT CATALOG

STEPAN CHINA SURFACTANT CATALOG Including Food Health Specialties STEPAN in BRIEF n Founded in 1932 by Alfred C Stepan Jr n Over 1 500 Employees n Corporate Offices in Northfield IL n Fourteen Manufacturing Locations Worldwide n Shipments available direct and through more than 150 distribution locations n Member of ACC Responsible Care and CSPA Product Care Program n

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POLYMER SURFACTANT INTERACTIONS

interactions between surfactant head groups and polymer segments the shielding of micelle-water contact by the polymer and the polymer hydrophobicity The theory is used to explain why the presence of the polymer lowers the critical micelle concentration reduces the size of spherical micelles allows formation of complexes with mixed surfactants and transforms large rodlike micelles and

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Surfactant replacement therapy for neonates

Surfactant replacement therapy should be considered when the diagnosis is respiratory distress syndrome (RDS) based on clinical grounds +/- chest x-ray Also consider surfactant replacement therapy if: the birth is at 30 weeks in a special care nursery (SCN) setting

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