Effect of Physical Properties on Microexplosion Occurrence in Water-in-Oil Emulsion Droplets

2010 ◽  
Vol 24 (3) ◽  
pp. 1854-1859 ◽  
Author(s):  
Yoshio Morozumi ◽  
Yuuto Saito
Keyword(s):  
Physical Properties ◽  
Oil Emulsion ◽  
Emulsion Droplets ◽  
Water In Oil Emulsion

Direct Observation of Splitting in Oil-In-Water-In-Oil Emulsion Droplets via a Microchannel Mimicking Membrane Pores

Langmuir ◽  
2017 ◽  
Vol 33 (49) ◽  
pp. 14087-14092 ◽  
Author(s):  
Kazuki Akamatsu ◽  
Koki Minezaki ◽  
Masumi Yamada ◽  
Minoru Seki ◽  
Shin-ichi Nakao
Keyword(s):  
Direct Observation ◽  
Oil Emulsion ◽  
Membrane Pores ◽  
Emulsion Droplets ◽  
Oil In Water ◽  
Water In Oil Emulsion

Effect of the Surfactant Concentration on Sinking Electric Discharge Machining Performance with Water-in-Oil Emulsion as Dielectric

2011 ◽  
Vol 189-193 ◽  
pp. 3153-3157
Author(s):  
Yan Zhen Zhang ◽  
Yong Hong Liu ◽  
Ren Jie Ji ◽  
Bao Ping Cai
Keyword(s):  
Physical Properties ◽  
Electric Discharge ◽  
Surfactant Concentration ◽  
Emulsion Stability ◽  
Experimental Results ◽  
Machining Performance ◽  
Electric Discharge Machining ◽  
Oil Emulsion ◽  
The Stability ◽  
Water In Oil Emulsion

In this paper, the EDM performance of water-in-oil (W/O) emulsions dielectric with different surfactant concentration is investigated by correlated to its physical properties, such as viscosity and droplets size, which is predominantly determined by the surfactant concentration. Experimental results show that the stability of the W/O emulsions increases with increasing surfactant concentration, whereas the EDM performance deteriorates with increasing surfactant concentration. So, taking a comprehensively consideration of the emulsion stability and EDM performance, the concentration of surfactant must be appropriately selected.

Mineralization of water-in-oil emulsion droplets

2004 ◽  
Vol 847 ◽  
Author(s):  
Giulia Fornasieri ◽  
Stéphane Badaire ◽  
Rénal Vasco Backov ◽  
Philippe Poulin ◽  
Cécile Zakri ◽  
...  
Keyword(s):  
Continuous Phase ◽  
Water Soluble ◽  
Oil Emulsion ◽  
Emulsion Droplets ◽  
Emulsion Systems ◽  
Oil Water ◽  
Silica Precursor ◽  
Concentration Threshold ◽  
Water In Oil Emulsion ◽  
Soluble Surfactant

Using reverse emulsion systems, we were able to trigger mineralization confined at an oil-water interface. In this process, the alcoxide silica precursor is dissolved in the oil continuous phase of the emulsion and diffuses through the bulk to the interface where it starts to hydrolyze and condense as soon as a certain concentration threshold is attained. The process takes place only in the presence of a water soluble surfactant inside the droplet. This surfactant leads to the presence of a controlled mesoporosity inside the silica shells. The obtained objects could be used in different encapsulation applications.

scholarly journals Spatial RNA proximities reveal a bipartite nuclear transcriptome and territories of differential density and transcription elongation rates

2017 ◽  
Author(s):  
Jörg Morf ◽  
Steven W. Wingett ◽  
Irene Farabella ◽  
Jonathan Cairns ◽  
Mayra Furlan-Magaril ◽  
...  
Keyword(s):  
Rna Polymerase Ii ◽  
Rna Seq ◽  
Cell Nuclei ◽  
Oil Emulsion ◽  
Rna Molecules ◽  
Emulsion Droplets ◽  
Differential Density ◽  
Genomic Regions ◽  
Water In Oil Emulsion ◽  
Nascent Transcripts

AbstractSpatial transcriptomics aims to understand how the ensemble of RNA molecules in tissues and cells is organized in 3D space. Here we introduce Proximity RNA-seq, which enriches for nascent transcripts, and identifies contact preferences for individual RNAs in cell nuclei. Proximity RNA-seq is based on massive-throughput RNA-barcoding of sub-nuclear particles in water-in-oil emulsion droplets, followed by sequencing. We show a bipartite organization of the nuclear transcriptome in which compartments of different RNA density correlate with transcript families, tissue specificity and extent of alternative splicing. Integration of proximity measurements at the DNA and NA level identify transcriptionally active genomic regions with increased nucleic acid density and faster RNA polymerase II elongation located close to compact chromatin.

Monodisperse Water-in-Water-in-Oil Emulsion Droplets

ChemPhysChem ◽  
2011 ◽  
Vol 12 (2) ◽  
pp. 263-266 ◽  
Author(s):  
Masahiro Yasukawa ◽  
Eiji Kamio ◽  
Tsutomu Ono
Keyword(s):  
Oil Emulsion ◽  
Emulsion Droplets ◽  
Water In Oil Emulsion

Surface Interaction of Water-in-Oil Emulsion Droplets with Interfacially Active Asphaltenes

Langmuir ◽  
2017 ◽  
Vol 33 (5) ◽  
pp. 1265-1274 ◽  
Author(s):  
Chen Shi ◽  
Ling Zhang ◽  
Lei Xie ◽  
Xi Lu ◽  
Qingxia Liu ◽  
...  
Keyword(s):  
Surface Interaction ◽  
Oil Emulsion ◽  
Emulsion Droplets ◽  
Water In Oil Emulsion

scholarly journals The Physical Properties of Microcellular Composite Foams

1989 ◽  
Vol 171 ◽  
Author(s):  
Alice M. Nyitray ◽  
Joel M. Williams ◽  
David Onn ◽  
Adam Witek
Keyword(s):  
Thermal Conductivity ◽  
Physical Properties ◽  
Polystyrene Foam ◽  
Oil Emulsion ◽  
Composite Foams ◽  
Internal Phase ◽  
Free Radical Initiator ◽  
Styrene Divinylbenzene ◽  
Phase Water ◽  
Water In Oil Emulsion

ABSTRACTRecently we reported on a method of preparing microcellular composite foams. In this procedure an open-celled polystyrene foam is prepared by the polymerization of a high-internal-phase water-in-oil emulsion containing styrene, divinylbenzene, surfactant, free-radical initiator and water. After drying, the cells of the polystyrene foam are then filled with other materials such as aerogel or resoles. The physical properties of these materials e.g., surface area, density, thermal conductivity, and compressive strength will be presented.

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