Results 151 to 160 of about 424,888 (346)

Novel Shear Banding Phenomenon Probes Soap Film Friction [PDF]

open access: yesarXiv, 2006
We have generated a novel form of shear banding in a 2D foam and measured the relative magnitude of drag forces on soap films at different lubrication layers. We injected air part way along a flowing bubble field in a narrow Hele-Shaw cell. The injected air inflates bubbles as they flow by, and these bubbles form a shear band down the middle of the ...
arxiv  

CCXV.—Studies of the constitution of soap in solution: sodium myristate and sodium laurate [PDF]

open access: green, 1912
James W. McBain   +2 more
openalex   +1 more source

Changing trends in anabolic‐androgenic steroid use within Scottish prisons: Detection, prevalence, and quantitation

open access: yesDrug Testing and Analysis, EarlyView.
This study reports the qualitative and quantitative detection of anabolic‐androgenic steroids (AASs) in seized samples from prisons. Since 2022 there has been an increase in AAS detections with oxymetholone the most prevalent AAS, followed by metandienone, methyltestosterone, and oxandrolone.
Caitlyn Norman   +4 more
wiley   +1 more source

The Fusion of Elemental Sulfur With Waste Cooking Oil‐Based Derivatives: Beyond Renewability

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The fuse of two waste streams, elemental sulfur and waste cooking oil, is enabled by Inverse Vulcanization. The process might ensure the closed‐loop production of polymeric materials for a wide range of applications, beyond its sole potential renewability.
Sandric Afonso, Hatice Mutlu
wiley   +1 more source

Non‐Classical Nitrogen Promoters for Rhodium‐Catalyzed Reductive Hydroformylation: New Efficient Way to Access Polyols From Linseed Oil

open access: yesEuropean Journal of Lipid Science and Technology, EarlyView.
The reductive hydroformylation of linseed oil was carried out using a rhodium precursor associated with various nitrogen derivatives such as pyridines, imidazoles, trialkylamines, amidines, and guanidines. ABSTRACT The reductive hydroformylation reaction of polyunsaturated linseed oil using a rhodium precursor associated with a nitrogen compound from ...
Walid Abdallah   +9 more
wiley   +1 more source

Synthesis of Rhamnose‐Modified Lewis‐X‐Containing Saponins

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The synthesis of triterpenoid saponins bearing a Lewis‐X trisaccharide analogue, in which the fucose residue is replaced by a rhamnose, is presented. These saponins, designed as negative controls in dendritic cell‐specific intercellular adhesion molecule‐3‐grabbing nonintegrin‐targeted therapeutic applications, are prepared through iterative and ...
Oscar Javier Gamboa Marin   +3 more
wiley   +1 more source

EFFECT OF ACIDIC, BASIC AND NEUTRAL SOAPS ON MICROLEAKAGE OF DENTIN BONDING AGENT

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2008
BACKGROUND AND OBJECTIVE: Microleakage of composite restorations causes postoperative sensitivity, marginal staining and recurrent caries. The aim of this study was to reduce microleakage of tooth-colored restorative materials by preparing dentin surface
H Safarcherati,, H Alaghemand,, S Hatami
doaj  

Stationary Soap Film Bridge Subjected to an Electrostatic Force: The Balanced Case [PDF]

open access: yesarXiv
We analytically study a stationary free boundary problem describing a soap film bridge subjected to an electrostatic force. Starting from a cylinder that the soap film forms if its surface tension and the electrostatic force are perfectly balanced, we construct a local branch of stationary solutions. Then, we prove that there is a sharp threshold value
arxiv  

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