Hewlett-packard Development Company, L.P.

Ent. Services Development Corporation LP

Richard Coull

Kevin Dooley

Graeme Scott

Lorraine Byrne

Vittorio Scardaci

David Fitzpatrick

Pat J Reilly

According to an example, a system for managing a fluid condition in a pipe includes a controller to receive temperatures of the pipe detected by the temperature sensor over a period of time. The controller may determine, based upon the temperatures of the pipe over the period of time, a temperature profile of the pipe and may determine that the temperature profile of the pipe indicates that a freezing onset event has occurred. The freezing onset event may include a transition from a drop in temperature to an increase in temperature, in which the temperature during the transition is below a freezing point temperature of a fluid contained in the pipe. The controller may further trigger at least one of an alarm and an activation of a first freezing prevention device in response to the determination that the freezing onset event has occurred.

Managing a fluid condition in a pipe

A structure for a chemical sensing device includes a plurality of recesses and a plurality of electrically conductive elements located in, and protruding from, the plurality of recesses.

Structure and method of manufacture

A water vapor sensor comprises a substrate and a film of carbon nanotubes impregnated with surfactant on the substrate. The substrate is of material which is inert relative to the film. Two or more electrical conductors are in contact with in spaced apart zones of the film, whereby the impedance of the film may be measured. The sensor is housed in housing which protects the sensor but also allows exposure of the film to water vapor.

Sensing water vapour

Devices with nanosized particles deposited on shaped surface geometries include a substrate with an active material of nanosized particles deposited on a surface of the substrate. The active material has an edge formed at a position determined with a shaped geometry of the surface.

Nanosized particles deposited on shaped surface geometries

A structure for a chemical sensing device, the structure comprising at least one electrically conductive element located in, and protruding from, at least one recess. A method of manufacturing the structure includes: (a) providing a template comprising at least one recess having a recess depth; (b) providing an electrically conductive material in the at least one recess; and (c) removing part of the template to decrease the recess depth of the at least one recess, thereby forming said protruding at least one electrically conductive element.

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Lisdar, Ireland

Richard Coull