摘要:
A method of controlling a plurality of power converters 1a, 1b and 1c can be used to interface to a supply network, ac busbar etc. Each power converter includes a network bridge 14 operating in accordance with a pulse width modulation (PWM) strategy having the same switching period and which causes at least one unwanted harmonic in the supply network voltage. The method includes the step of providing the switching period of the PWM strategy of each network bridge with a different time offset relative to a time datum such that the at least one unwanted harmonic in the supply network voltage is at least partially cancelled. Two alternative ways of providing the time offset are described.
摘要:
In an illustrative embodiment, a computer implemented method for providing remote system recovery services is provided. The computer implemented method generates bootable system recovery images to form a set of bootable system recovery images, creates a list of authorized users from a set of subscribers, and receives a request for a bootable system recovery image, including a subscriber identifier, to form a received request. The computer implemented method further authenticates the subscriber identifier in the received request and sends the bootable system recovery image to the subscriber. Responsive to a determination that the user selected additional services, the computer implemented method performs the selected services.
摘要:
A composition is provided suitable for use in a cleaning or washing process. The composition includes an activation agent for activating at least one aqueous sensitive component in use. The composition further includes a water soluble builder component and the activation agent is adsorbed onto a surface of the water soluble builder component.
摘要:
A disposable re-useable urine receptacle that, when used, provides comfortable, discrete, and safe urine collection and containment until the collected urine can be properly disposed of, either by the wearer or someone else. It achieves these goals by conforming to the wearer's body, expanding to a predetermined self-supported shape, and disallowing side wall-to-wall adherence between fillings. An apparatus for automated disposal of urine is also disclosed.
摘要:
A handheld shaker with a reciprocating agitator, comprising a mixing vessel that operatively contains a guide rod that runs from one end of the vessel to an opposite end of the vessel. The mixing vessel is operatively connected to both such ends. The shaker also uses a hollow agitator frame that operatively reciprocates from the one end of the vessel to the opposite end, and thereby mixes fluid contained within the vessel. A reciprocating agitator is also disclosed.
摘要:
Clumping cellulosic animal litter comprising a cellulosic substrate coated with a first layer of xanthan gum and a second layer of guar gum and a unique method of making such particles by applying water coatings between application of the two gum layers.
摘要:
A control system for controlling conversion of an input power into an output power in a converter module is provided. The control system includes an input power terminal, an output power terminal, and an active switching device. The control system further includes a master controller and a communication link interconnecting the master controller and the converter module. Also, the system has a timing generator generating a timing signal with a cycle time equal to or less than the shortest time constant of the converter module and immediate power circuit elements relating to the converter module. The timing generator is integrated in or interconnected with the master controller. Furthermore, the control system has a signal generator integrated in or interconnected with the master controller generating switching control signals, each switching control signal containing a control message defining a switching state for the active switching device.
摘要:
A method, system and computer program product for associating automated electronic mail (e-mail) with a calendar of events. A sender utilizes an automated e-mail to notify an event's scheduled attendees that the sender is out of office. When utilizing options within a mail user agent, a user may select a set of calendar days in which the user is not available for events. The mail user agent, associated with the user's calendar of events, displays one or more events conflicting with the selected days the user is not available. The e-mail addresses of one or more attendees associated with the conflicting event are dynamically linked to the automated message. The sender may input a text message informing owners, all attendees, and/or select attendees of the sender's absence.
摘要:
A server rack enclosure has a display, keyboard and mouse mounted on the inside face of the enclosure's door. When the door is in an open position, these user interface devices provide access and control over the servers, hard drives, network equipment, etc. mounted in the server rack. The location of the user interface devices on the enclosure door saves valuable rack space for servers or other machines. The user interface devices are integrally or separately mounted to a vertical rail affixed to the door to permit user positioning of the user interface devices to a preferred height by sliding the display and keyboard along the rail. The display and keyboard are mounted to the rail using hinge or swivel mounts to permit the user rotation and positioning of the user interface devices to a preferred viewing and operational angle.