Results 21 to 30 of about 6,002,244 (336)

Analysis of Materials and Modern Technologies for PDC Drill Bit Manufacturing

Успехи физики металлов, 2020
The article presents a review of polycrystalline diamond composite (PDC) drill bit manufacturing technologies and used metals in order to provide surface quality and accuracy as well as to attract a wider range of scientists to find new technologies and ...
L. Ya. Ropyak, T. O. Pryhorovska, K. H. Levchuk
doaj   +1 more source

Do Metals in the Human Environment Pose a Threat? A Review of the Available Literature

Quality in Sport
Introduction and purpose: The impact of aluminum on human life is significant. Scientists have been studying the presence of aluminum in our environment for many years.
Weronika Goliat, Konrad Haraziński , Oliwia Sysło, Izabela Jastrzębska, Nikola Rubik, Maksym Gmur, Michał Gajewski, Barbara Sławińska, Zuzanna Błecha, Nicole Maryniak   +9 more
doaj   +1 more source

Emergent Properties and Toxicological Considerations for Nanohybrid Materials in Aquatic Systems

Nanomaterials, 2014
Conjugation of multiple nanomaterials has become the focus of recent materials development. This new material class is commonly known as nanohybrids or “horizon nanomaterials”.
Navid B. Saleh, A. R. M. Nabiul Afrooz, Joseph H. Bisesi, Jr., Nirupam Aich, Jaime Plazas-Tuttle, Tara Sabo-Attwood   +5 more
doaj   +1 more source

Charging damage in floating metal-insulator-metal capacitors [PDF]

, 2002
In this paper, charging induced damage (CID) to metal-insulator-metal capacitors (MIMC) is reported. The damage is caused by the build up of a voltage potential difference between the two plates of the capacitor.
Ackaert, Jan, Coppens, P., De Backer, E., Wang, Zhichun   +3 more
core   +2 more sources

Ultra-Short-Pulse Laser Welding of Glass to Metal with a Shear Strength Above 50 MPa

Micromachines
We report an ultra-short-pulse laser welding process that allows one to consistently weld Borofloat® 33 glass to aluminum with a shear strength above 50 MPa.
Lukas Günther, Jens Ulrich Thomas, Jens Hermann, Axel Ohlinger, Dominique de Ligny   +4 more
doaj   +1 more source

Antibacterial Effect of Carbosilane Metallodendrimers in Planktonic Cells of Gram-Positive and Gram-Negative Bacteria and Staphylococcus aureus Biofilm

Biomolecules, 2019
Antibiotic resistance is currently one of the main threats to public health security. Biofilm formation is a resistance mechanism that is responsible for most human bacterial infections and requires new and effective therapeutic approaches, such as those
Celia Llamazares, Natalia Sanz del Olmo, Paula Ortega, Rafael Gómez, Juan Soliveri, F. Javier de la Mata, Sandra García-Gallego, José Luis Copa-Patiño   +7 more
doaj   +1 more source

X-ray measured metallicities of the intra-cluster medium: a good measure for the metal mass?

, 2007
Aims. We investigate whether X-ray observations map heavy elements in the Intra-Cluster Medium (ICM) well and whether the X-ray observations yield good estimates for the metal mass, with respect to predictions on transport mech- anisms of heavy elements ...
Anders, Buote, Cora, Domainko, Dorman, Durret, J. Weratschnig, Kaastra, Kapferer, Kapferer, Mewe, Mitchell, Moll, Pratt, Renzini, S. Schindler, Schindler, Schmidt, Springel, T. Kronberger, W. Kapferer   +20 more
core   +1 more source

The Production of Roman Metal Screw Threads

EXARC Journal, 2023
The production of Roman screws and screw threads is a topic that is largely absent in the archaeological literature. During the Roman period, small metal screw threads were used both as fastenings and to impart motion.
David Sim, Chris Legg
doaj  

Non-Cyanide Silver as a Substitute for Cyanide Processes [PDF]

, 2002
Since the mid 1800s, silver has been deposited from a cyanide-based formulation on a commercial basis. Commercial non-cyanide silver plating solutions were first made generally available in the late 1970s, and yet today the vast majority, and nearly ...
Chicago Metal Finishers Institute
core  

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Dentz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source