Results 41 to 50 of about 822,489 (340)

Ceramic Keratoprostheses

Ophthalmology, 1980
This paper describes a new type of corneal prosthesis made of aluminum oxide ceramic. The implant consists of a retaining plate with a 3-mm central performation to which an optical cylinder is threaded. The cylinder also made of ceramic material, has a high refractive index and 60 diopters of power. Experimental study has shown that soft tissue adheres
From the Department of Ophthalmology, University of Florida, College of Medicine, J. Hillis Miller Health Center, Gainesville ( host institution ), Polack, Frank M. ( author ), Heimke, Gunther ( author )   +2 more
openaire   +4 more sources

Ceramics (As Containers) [PDF]

, 2012
This article focuses on the importance of ceramics in material cultural studies. It proceeds to say that ceramics are considered a key feature of human material culture because of what they are taken to represent in economic, technological, and evolutionary terms.
Knappett, Carl, Malafouris, Lambros, Tomkins, Peter   +2 more
openaire   +3 more sources

Thermal And Mechanical Analysis of High-power Light-emitting Diodes with Ceramic Packages [PDF]

, 2007
In this paper we present the thermal and mechanical analysis of high-power light-emitting diodes (LEDs) with ceramic packages. Transient thermal measurements and thermo-mechanical simulation were performed to study the thermal and mechanical ...
Hu, J., Shin, M. -W., Yang, L.
core   +1 more source

On the predominant mechanisms active during the high power diode laser modification of the wettability characteristics of an SiO2/Al2O3-based ceramic material [PDF]

, 2002
The mechanisms responsible for modifications to the wettability characteristics of a SiO2/Al2O3-based ceramic material in terms of a test liquid set comprising of human blood, human blood plasma, glycerol and 4-octonol after high power diode laser (HPDL)
Bahners T., Bourell D. L., Heitz J., Henari F., J. Lawrence, Li J. G., Neumann A. W., Song Q., Song Q., Song Q., Watanabe H., Zhou X. B., Zhou X. B.   +12 more
core   +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

EMDL_m6Am: identifying N6,2′-O-dimethyladenosine sites based on stacking ensemble deep learning

BMC Bioinformatics, 2023
Background N6, 2'-O-dimethyladenosine (m6Am) is an abundant RNA methylation modification on vertebrate mRNAs and is present in the transcription initiation region of mRNAs.
Jianhua Jia, Zhangying Wei, Mingwei Sun
doaj   +1 more source

Fabrication of large ceramic electrolyte disks [PDF]

, 1972
Process for sintering compressed ceramic powders produces large ceramic disks for use as electrolytes in high-temperature electrolytic cells. Thin, strain-free uniformly dense disks as large as 30 cm squared have been fabricated by slicing ceramic slugs ...
Ring, S. A.
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Recognition of Yuan blue and white porcelain produced in Jingdezhen based on graph anomaly detection combining portable X-ray fluorescence spectrometry

Heritage Science
The blue and white porcelain produced in Jingdezhen during China’s Yuan Dynasty is an outstanding cultural heritage of ceramic art that has attracted wide attention for its identification.
Jinwei Li, Yifei Yang, Dongmian Zou, Lin Wu, Qiang Wu, Ziwei Lin, Qijiang Li   +6 more
doaj   +1 more source

Aliovalent Sm-doping enables BNT-based realxor ferroelectric ceramics with > 90% energy efficiency

Journal of Advanced Ceramics
Dielectric capacitors, as physical powers, are critical components of advanced electronics and pulse power systems. However, achieving high energy efficiency without sacrificing recoverable energy density remains a challenge for most dielectric materials.
Dong-Xu Li, Wei Deng, Zong-Yang Shen, Zhipeng Li, Xiaojun Zeng, Xuhai Shi, You Zhang, Wenqin Luo, Fusheng Song, Chao-Feng Wu   +9 more
doaj   +1 more source