Results 51 to 60 of about 4,893 (303)

Sensitivity analysis overlaps of friction elements in cartridge seals

MATEC Web of Conferences, 2018
Cartridge seals are self-contained units consisting of a shaft sleeve, seals, and gland plate. The applications of mechanical seals are numerous. The most common example of application is in bearing production for automobile industry.
Žmindák Milan, Falat Miloš
doaj   +1 more source

A Review on the Long-Term Performance of Proton Exchange Membrane Fuel Cells: From Degradation Modeling to the Effects of Bipolar Plates, Sealings, and Contaminants

Energies, 2022
Proton-exchange membrane fuel cells (PEMFCs) are regarded as promising alternatives to internal combustion engines (ICEs) to reduce pollution. Recent research on PEMFCs focuses on achieving higher power densities, reducing the refueling time, mitigating ...
Hossein Pourrahmani, Majid Siavashi, Adel Yavarinasab, Mardit Matian, Nazanin Chitgar, Ligang Wang, Jan Van herle   +6 more
doaj   +1 more source

Feasting and Redistribution of Meals at Late Chalcolithic Arslantepe (Malatya, Turkey) [PDF]

, 2015
The redistribution of meals and feasting practices in the early centralized society of Arslantepe VI A in south-eastern Anatolia (Late Chalcolithic 5 – 3300/3000 cal. BCE) are presented in this paper as examples of commensal politics.
D'Anna, Maria Bianca
core   +2 more sources

Mycenaean Seals and Sealings [PDF]

, 2012
Abstract After the introduction of a sealing system from the Near East into southern Greece in the Early Helladic period and the destruction of that culture, there is no demonstrable sign that seals were used on the Greek mainland until the sudden appearance of seals in the Mycenae Shaft Graves at the end of the Middle Helladic period ...
openaire   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Identification of Rub and Unbalance in 320 MW Turbogenerators

International Journal of Rotating Machinery, 2003
This article presents two experiences of applying a model-based fault-identification method to real machines. The first case presented is an unbalance identification in a 320 MW turbogenerator unit operating in a fossil power plant.
N. Bachschmid, P. Pennacchi, A. Vania, G. A. Zanetta, L. Gregori   +4 more
doaj   +1 more source

Rubber friction on wet and dry road surfaces: the sealing effect

, 2005
Rubber friction on wet rough substrates at low velocities is typically 20-30% smaller than for the corresponding dry surfaces. We show that this cannot be due to hydrodynamics and propose a novel explanation based on a sealing effect exerted by rubber on
A. D. Roberts, B. J. Hamrock, B. N. J. Persson, B. N. J. Persson, B. N. J. Persson, D. F. Moore, E. Meyer, E. Tosatti, G. Heinrich, J. Krim, K. A. Grosch, M. Klüppel, O. Albohr, U. Tartaglino, W. E. Meyer   +14 more
core   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

A Study of Bronze Age Storage and Warehouse Architecture at Tappeh Graziani, Sistan, Iran [PDF]

Iranian Journal of Archaeological Studies
During the Bronze Age, the Sistan civilisation experienced significant cultural and economic development, with Shahr-i Sokhta emerging as a major production and commercial hub.
Hossein Ali Kavosh, Zohreh Oveisi-Keikha
doaj   +1 more source