Abstract:
A heating apparatus, in particular a boiler for domestic use, has a pre-mix system (10, 20), prearranged for supplying a pre-mix burner (5) with a mixture formed by combustion air and combustible gas. The pre-mix system comprises a fan assembly (10) and a control valve (20) for supply of the gas, and integrates means for detecting a condition of at least partial obstruction of a path for supply of the combustion air (3) and/or of a path for discharge (31) of the combustion fumes produced by the burner.
Abstract:
A heating apparatus, in particular a boiler for domestic use, has a pre-mix system (10, 20), prearranged for supplying a pre-mix burner (5) with a mixture formed by combustion air and combustible gas. The pre-mix system comprises a fan assembly (10) and a control valve (20) for supply of the gas, and integrates means for detecting a condition of at least partial obstruction of a path for supply of the combustion air (3) and/or of a path for discharge (31) of the combustion fumes produced by the burner.
Abstract:
A system for monitoring blood groups and for detecting immunohematological reactions uses a detection device consisting of a quartz crystal microbalance (QCM), a device able to measure very small variations in mass (down to fractions of a nanogram).
Abstract:
A system for monitoring blood groups and for detecting immunohematological reactions uses a detection device consisting of a quartz crystal microbalance (QCM), a device able to measure very small variations in mass (down to fractions of a nanogram).
Abstract:
A heating apparatus, in particular a boiler for domestic use, has a pre-mix system (10, 20), prearranged for supplying a pre-mix burner (5) with a mixture formed by combustion air and combustible gas. The pre-mix system comprises a fan assembly (10) and a control valve (20) for supply of the gas, and integrates means for detecting a condition of at least partial obstruction of a path for supply of the combustion air (3) and/or of a path for discharge (31) of the combustion fumes produced by the burner.
Abstract:
A heat exchanger (1) comprises a casing (2, 13, 28, 33), within which there is present a first pipe wound in a spiral (25), in which a first fluid flows, the casing (2) being designed to receive a second fluid that is in heat-exchange relationship with the first fluid. The heat exchanger further comprises at least one second pipe wound in a spiral (26, 27), which connects, in parallel to the first pipe (25), two gaps (15, 36) formed in the casing (2, 13, 28, 33), the spiralled pipes (25,.26, 27) being arranged in a coaxial way and at a distance from one another, and having different sections of passage.
Abstract:
A construct comprising a Ni and/or Au substrate provided of hexa-histidine-tagged protein A or G suitable for building a layer of antibodies featuring an enhanced antigen binding ability, wherein said hexa-histidine- tagged protein A or G is self-assembled in a monolayer on said Ni and/or substrate by the high affinity of the 6Xhis tag for the specified metal, whereby said protein binds the surface of the substrate only with the 6xhis tail, thereby orienting said hexa-histidine-tagged protein A or G in a predetermined fashion.
Abstract:
A heat exchanger (1) comprises a casing (2, 13, 28, 33), within which there is present a first pipe wound in a spiral (25), in which a first fluid flows, the casing (2) being designed to receive a second fluid that is in heat-exchange relationship with the first fluid. The heat exchanger further comprises at least one second pipe wound in a spiral (26, 27), which connects, in parallel to the first pipe (25), two gaps (15, 36) formed in the casing (2, 13, 28, 33), the spiralled pipes (25,26, 27) being arranged in a coaxial way and at a distance from one another, and having different sections of passage.