摘要:
A method of growing epitaxial 3-SiC on single-crystal silicon is disclosed. The method comprises providing a single-crystal silicon substrate in a cold-wall chemical vapour deposition reactor, heating the substrate to a temperature equal to or greater than 700° C. and equal to or less than 1200° C., introducing a gas mixture into the reactor while the substrate is at the temperature, the gas mixture comprising a silicon source precursor, a carbon source precursor and a carrier gas so as to deposit an epitaxial layer of 3-SiC on the single-crystal silicon.
摘要:
A method, processor and system for controlling packet flow in a network provides for selecting a transmission scheme based on a payload rate for payloads arriving at a buffer. The transmission scheme includes data blocks comprising packets each having an associated payload, the data blocks have a variable packet transmission rate and a variable payload per packet ratio. The product of the variable packet transmission rate and the variable payload per packet ratio remains constant. The data blocks are sent to a network switch that deterministically routes the data blocks.
摘要:
The invention provides a method of preventing or reducing the growth of crystals in a substance which is susceptible to crystal growth in which colloidal particles having an amphiphilic structure, e.g. Janus particles, are contacted with the substance. Colloidal particles suitable for use in the invention include cross-linked, colloidal materials formed from hydrophobic monomers such as acrylates or methacrylates and hydrophilic monomers such as those derived from acrylic and/or methacrylic acid. The colloidal particles find particular use in methods of cryopreservation of biological samples (e.g. cells, tissues or organs), as a texture modifier in frozen food products, in the inhibition of gas hydrate formation, and as scale inhibitors.
摘要:
The invention relates to histology analyses, and in particular, to the assessment of pathological tissues to aid in the diagnosis of disease characterised by specific pathologies, for example cancer. The invention provides methods and apparatuses for analysing tissue samples, as well as computer-readable media programmed with software for carrying out these diagnostic methods.
摘要:
The invention relates to diagnostic devices, which are capable of characterising gases and other volatile organic compounds (VOCs) present in the gastrointestinal tract, for diagnosing diseases. The invention extends to apparatuses for use in the in vivo detection and characterisation of gases and VOCs, and to methods for diagnosing diseases.
摘要:
A method comprises bonding a silicon wafer (13) or silicon-on-insulator wafer having a monocrystalline silicon surface region (15) and a wafer-like carrier (12) comprising silicon carbide so as to form a composite wafer (18) having a surface with the monocrystalline silicon surface region for silicon carbide heterogrowth, such as heteroepitaxy. The composite wafer can help avoid wafer bow.