نتایج جستجو برای: air foam flooding

تعداد نتایج: 233064  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2013
Kathrin Engelhardt Meike Lexis Georgi Gochev Christoph Konnerth Reinhard Miller Norbert Willenbacher Wolfgang Peukert Björn Braunschweig

Macroscopic properties of aqueous β-lactoglobulin (BLG) foams and the molecular properties of BLG modified air-water interfaces as their major structural element were investigated with a unique combination of foam rheology measurements and interfacial sensitive methods such as sum-frequency generation and interfacial dilatational rheology. The molecular structure and protein-protein interaction...

2012
P. Suriyachai N. Thavarungkul

In this research sodium bicarbonate (NaHCO3) was introduced to generate carbon dioxide gas (CO2) to the existing nitrogen gas (N2) of elastomeric foam, to lower thermal conductivity (K). Various loadings of NaHCO3 (0 to 60 phr) were added into the azodicarbonamide (AZC)-containing compound and its properties were then determined. Two vulcanization methods, i.e., hot air and infrared (IR), were ...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
Urs T Gonzenbach André R Studart Elena Tervoort Ludwig J Gauckler

Inorganic colloidal particles which are in situ hydrophobized upon adsorption of short-chain amphiphilic molecules can be used as foam stabilizers. In this study, we tailor the microstructure of particle-stabilized wet foams, namely, the foam air content, average bubble size, and bubble size distribution, by changing the composition of the initial colloidal suspension. Wet foams featuring avera...

2006
Kenneth G. Orloff Dahna Batts-Osborne Theresa Kilgus Susan Metcalf

Residents living near a polyurethane foam manufacturing facility expressed concern to health officials-over chemical emissions from the plnt. Environmental monitoring of ambient air near the plant indicated the presence of toluene diisocyanate (TDI), which was ued in foam producton. Health official collected blood samples from 113 residents and analyzd the blood sera for antibodies to TDI and r...

Journal: :British journal of industrial medicine 1983
L Belin U Wass G Audunsson L Mathiasson

Investigations of respiratory symptoms among workers in a factory producing polyurethane foam included measurement of air pollution with amines and isocyanates and a simultaneous health investigation of the exposed workers. An increased bronchial reactivity to inhaled methacholine was found in the study group compared with two unexposed control groups. This finding, together with visual disturb...

Journal: :Journal of bacteriology 1947
H Humfeld

A small laboratory fermentor which employs mechanical agitation for the dispersion of air introduced under pressure has previously been described by Feustel and Humfeld (1946). This fermentor has an operating capacity of 500 to 2,000 ml and has been found very useful for small-scale, yeast-culturing investigations, as well as for studies on the production of subtilin activity by Bacillus subtil...

Journal: :Interactive cardiovascular and thoracic surgery 2014
Virginie Fouilloux Lisa Davey Glen S Van Arsdell Osami Honjo

We report 3 cases of significant foam formation in the venous reservoir with the Maquet Quadrox-I oxygenator and VHK 31 000 reservoir system. All the 3 patients required maximal suction return during procedures, causing pressurization of reservoir and foam formation. Two patients experienced systemic air emboli, which were dealt with by means of retrograde cerebral perfusion and hypothermia wit...

Journal: :Chemical communications 2013
Ding Zhu Lei Zhang Ming Song Xiaofei Wang Yungui Chen

We demonstrate for the first time that a Pd nanolayer, which is in situ formed on the Ni foam via the galvanic exchange method, greatly improves the energy output, the round-trip efficiency and the cyclability of the aprotic Li-air battery in ambient or simulated air.

2013
Jaehoon Oh Hyunggoo Kang Youngjoon Chee Taeho Lim Yeongtak Song Youngsuk Cho Sangmo Je

No study has examined the effectiveness of backboards and air deflation for achieving adequate chest compression (CC) depth on air mattresses with the typical configurations seen in intensive care units. To determine this efficacy, we measured mattress compression depth (MCD, mm) on these surfaces using dual accelerometers. Eight cardiopulmonary resuscitation providers performed CCs on manikins...

2014
Weirong Li David S. Schechter

Carbon dioxide has been used commercially to recover oil from reservoir by enhanced oil recovery technologies for over 40 years. Currently, the CO2 flood is the second most applied enhanced oil recovery (EOR) processes in the world behind steam flood. Water alternating gas (WAG) injection has been a popular method to control mobility and improve volumetric sweep efficiency for CO2 flooding. The...

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