-
Article
Brain-inspired computing needs a master plan
New computing technologies inspired by the brain promise fundamentally different ways to process information with extreme energy efficiency and the ability to handle the avalanche of unstructured and noisy dat...
-
Chapter
Probing Electrochemistry at the Nanoscale: In Situ TEM and STM Characterizations of Conducting Filaments in Memristive Devices
Memristors or memristive devices are two-terminal nanoionic systems whose resistance switching effects are induced by ion transport and redox reactions in confined spaces down to nanometer or even atomic scale...
-
Article
Open AccessCommittee machines—a universal method to deal with non-idealities in memristor-based neural networks
Artificial neural networks are notoriously power- and time-consuming when implemented on conventional von Neumann computing systems. Consequently, recent years have seen an emergence of research in machine lea...
-
Article
Probing electrochemistry at the nanoscale: in situ TEM and STM characterizations of conducting filaments in memristive devices
Memristors or memristive devices are two-terminal nanoionic systems whose resistance switching effects are induced by ion transport and redox reactions in confined spaces down to nanometer or even atomic scale...
-
Article
Open AccessIntrinsic Resistance Switching in Amorphous Silicon Suboxides: The Role of Columnar Microstructure
We studied intrinsic resistance switching behaviour in sputter-deposited amorphous silicon suboxide (a-SiO x ) films with varying degrees of roughness at the oxide-electrode inte...
-
Chapter
Resistive Switching in Oxides
Resistive switching in oxides, the phenomenon whereby the resistance of samples of the matrix can be cycled between states with contrasts of up to several orders of magnitude, has received growing attention ov...
-
Article
Open AccessQuantum Conductance in Silicon Oxide Resistive Memory Devices
Resistive switching offers a promising route to universal electronic memory, potentially replacing current technologies that are approaching their fundamental limits. In many cases switching originates from th...
-
Article
Rare-Earth Doped Silicon-Rich Silica: Evidence for Energy Transfer between Silicon Microclusters and Rare-Earth Ions
We report the fabrication of rare-earth doped silicon-rich silica thin films by PECVD. The films exhibit absorption edges in the visible region of the optical spectrum consistent with the presence of silicon m...
-
Article
The Effect of Level Mixing in Er-Doped Si
We have studied the effect of level mixing on the optical properties of Er in Si by calculating the radiative cross sections of Er in Si under external pressure, and the possibility of enhancing in this way bo...
-
Article
Investigation of Coupling Mechanism between Erbium (Er3+) and Ytterbium (Yb3+) in Alumina (A12O3) Host
Plasma-enhanced CVD (PECVD) deposited alumina (A12O3) thin films and single sapphire crystals were co-doped with both erbium and ytterbium using ion implantation. Yb3+ and Er3+ concentrations ranged from 2.4At% t...
-
Article
Energy Transfer in Erbium-Doped Silicon Nanoclusters: A Comparison of Silicon-Rich Silica and Silicon Nanopowders
A number of groups have demonstrated an efficient excitation transfer mechanism in erbium-doped crystalline and porous silicon. It has been postulated that this is a carrier-mediated transfer, which points to ...
-
Article
Non-Destructive Assessment Of Semiconductor Carrier Lifetime Using Photothermal Radiometry
Of crucial importance to all areas of the microelectronics industry is the characterisation of silicon wafer quality. An important indicator of this is carrier lifetime, and a convenient non-destructive method...
-
Article
Silicon Nanoclusters in Silica: A Luminescence Study of Visible Light Emission from a Siliconbased Material
Considerable interest has been generated recently in the application of Porous Silicon to the production of light emitting devices, and a number of demonstration structures have been produced. However, the poo...
-
Article
Properties of Aleutian disease virus assayed with feline kidney cells
Properties of Aleutian disease virus (ADV) were studied using feline kidney cells, line CRFK, to assay virus by the induction of nuclear antigen. ADV nuclear antigen was detected by immunofluorescent staining....
-
Article
Characterisation of Aleutian disease antigens
ALEUTIAN DISEASE (AD), which affects certain Mustelidae, is a persistent viral infection with development of non-neutralising antibody and gammapathy1–3. Some of the antigens developed in the course of AD are det...
-
Chapter
Altered Neutrophil Function Induced by Serum from Patients with Systemic Lupus Erythematosus
Systemic lupus erythematosus (SLE) is a disease characterized by immunoglobulin deposition and inflammation in several organs (1). It is not clear whether these deposits, presumably in the form of immune compl...
-
Article
Aleutian Disease Gammopathy of Mink induced with an Ultra-filtrable Agent
AMONG the lymphoproliferative diseases, murine leukaemia has interested many investigators since Gross succeeded in transmitting it with a filtrable agent1. Another lymphoproliferative disease, Aleutian disease o...
-
Article
Lymphatic Leukaemia associated with Dysproteinaemia in Ferrets
THE occurrence of lymphoreticular malignancy in patients with congenital agammaglobulinaemia1 or acquired hypogammaglobulinaemia2 is considered to suggest an interrelated response mediated by the thymus3. In spit...
-
Article
Plasma Mast Cells
DURING a histopathological examination of three hundred canine mastocytomata fixed in formalin, cells were repeatedly observed which presented characteristics of both plasma cells and mast cells1. These cells wer...
