Results 61 to 70 of about 4,574 (288)

Brush seal performance measurement system

, 2009
Brush seals are rapidly replacing conventional labyrinth seals in turbomachinery applications. Upon pressure application, seal stiffness increases drastically due to frictional bristle interlocking.
Akşit, Mahmut Faruk, Duran, Ertuğrul Tolga, Aksoy, Serdar   +2 more
core  

A Morphological Study of Restoration of Damaged Hair Fiber With Chemical Treatments Using Microscopy Techniques

Microscopy Research and Technique, EarlyView.
Assessment of Restoring Chemically Damaged Hair Fibers Using Microscopy and Spectroscopy. ABSTRACT This paper analyses hair restoration products currently on the market that treat chemically processed hair. This study measured the restoration of structural integrity in hair samples from both chemically damaged hair (chemically relaxed, bleached, and ...
L. P. A. Mauricio, R. A. D. Cunha, S. M. Alves   +2 more
wiley   +1 more source

Microleakage of Pit and Fissure Sealants after Using Different Occlusal Surface Preparation Techniques: An In Vitro Study

Journal of Baghdad College of Dentistry, 2016
Background: The marginal seal is essential for sealant success because penetration of bacteria under the sealant might allow caries onset or progression. The aim of the present study was to estimate and compare the microleakage of pit and fissure sealant
Nibal Mohammed Hoobi
doaj   +1 more source

Effect of encapsulated purple sweet potato (Ipomoea batatas L.) peel extract on fresh goat cheese: quality and polyphenolic and color stability during refrigerated storage

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The aim of this work was to characterize the polyphenolic profile of encapsulated purple sweet potato peel extract (PSPPE), to assess the effects of its addition (1.5 and 3 g L−1) on the color, texture, microbiological quality, microstructure, and sensory attributes of fresh goat cheese, and to monitor the polyphenolic profile and ...
Raquel Lucas‐González, Nuria Muñoz‐Tébar, Gema Martínez‐Navarrete, José Ángel Pérez‐Álvarez, Eduardo Fernández, José Manuel Lorenzo, Juana Fernández‐López, Manuel Viuda‐Martos   +7 more
wiley   +1 more source

Leakage Flow Characteristics of Novel Two-Stage Brush Seal with Pressure-Equalizing Hole

Lubricants
Uneven inter-stage pressure drops of the common two-stage brush seal (CBS) lead to a problem that the second stage bristles bear excessive pressure load, and this problem leads to the premature failure of the brush seal.
Yu Li, Huanze Xu, Jinghan Zhang, Dan Sun, Zemin Yang   +4 more
doaj   +1 more source

Arsonic Acid Functional Polymers Enable Stabilization of Iron Oxide Nanoparticles in Aqueous Solution

Macromolecular Rapid Communications, EarlyView.
Arsonic acid containing diblock copolymers are developed to incorporate arsonic acid moieties for surface anchoring to IONPs, along with water soluble PEG blocks to impart colloidal stability in aqueous environments. The resulting polymer‐coated IONPs are evaluated for stability in physiological media and cytocompatibility.
Nhu Thao Huynh, Alexander Rajakanthan, Jurie Tashkandi, Rafia Rafique, Milad Ghorbani, Zihnil A. I. Mazrad, Nicole M. Warne, Kiyonori Suzuki, Karen Alt, Paul Wilson, Kristian Kempe   +10 more
wiley   +1 more source

Brush Seal Performance with Ideal Gas Working Fluid under Static Rotor Condition

Machines
The study investigated how variations in pressure ratio affect the leakage flow of a brush seal for both contact and clearance structures, in which the clearance is measured as the distance between the bristles tip and the rotor surface.
Altyib Abdallah Mahmoud Ahmed, Meihong Liu, Yuchi Kang, Juan Wang, Aboubaker I. B. Idriss, Nguyen Thi Trung Tin   +5 more
doaj   +1 more source

Oil Temperature Analysis of Brush Seals

ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 2007
Due to their superior performance and stable leakage characteristics, brush seals are one of the dynamic seals used in oil and oil mist applications in aero-engines and turbines. The viscous medium between the high speed rotor surface and brush seal bristles generates a hydrodynamic lifting force that determines seal clearance and leakage rate in oil ...
Duran, Ertuğrul Tolga, Aksit, Mahmut Faruk, Doğu, Yahya   +2 more
openaire   +2 more sources

High speed characterization of a prototype leaf seal on an advanced seal test facility

, 2015
Advanced contacting seals, such as leaf seals or brush seals, can offer reduced leakage during engine operation when compared to conventional labyrinth seals.
Pekris, Michael J., Nasti, Adele, Jahn, Ingo H. J., Franceschini, Gervas, Gervas Franceschini, Michael J. Pekris, Adele Nasti, Ingo H. J. Jahn, Pekris, Michael J   +8 more
core   +1 more source

Hygrothermal Aging and Decoupled Axial‐Radial Compressive Failure Mechanisms in Glass Fiber Reinforced Epoxy Filament‐Wound Composite Tubes

Polymer Composites, EarlyView.
Composite cylinder under axial and radial compression. ABSTRACT This study examines the hygrothermal degradation of filament‐wound glass fiber‐reinforced epoxy composite tubes designed for application as liners in oil and gas systems, focusing on their response under axial or radial compression.
Anderson L. dos Santos, Maikson L. P. Tonatto, José Humberto S. Almeida Jr, Sandro C. Amico   +3 more
wiley   +1 more source