A reenforcing wire mesh placement apparatus is provided having a rotating spindle for placing a roll of tightly wound wire mesh for reenforcing concrete, or the like, and haVing a decontouring drum rotatably connected for unravelling the wire in a manner to decontour and flatten the rolled wire. A frame is provided which has lifting means for lifting the apparatus for the placement of wire mesh at various levels of a multi-levelled building during construction. A guard is also provided for flatt...

This invention relates to pollution control requirements for fossil-fuel burning facilities, such as power plants, and, more particularly, to a method for providing a safe and economical supply of ammonia, from a urea feedstock, when ammonia is desired or necessary to initiate, cause and/or supplement the removal of one or more pollutants from an exhaust gas stream.

In many situations where the maximum NOx reduction capabilities of conventional SCR systems are not necessary, and alternative SNCR systems may not economically provide desired NOx reduction, a staged SCR/SNCR system is believed to be the most appropriate solution available. By means of the present invention, a system has been developed for delivering NOx reduction agents from a common urea feedstock, when it appropriate to use combined NOx treatment stages (i.e. SNCR within the boiler followed ...

A pavement marking eradicator (10) for removing pavement marking from pavement. The eradicator has a grinding apparatus (13) having a safety skirt (31) to which is mounted a collector (39) of a vacuum system (14). The vacuum system also has a cyclone (36) for collecting and filtering debris created by the grinding apparatus during operation.

A method and apparatus for indexing digital video and audio signals using a digital database. A user may index the digital images by content within the images, through annotation, and the like. The database can contain high resolution and low resolution versions of the audio-video content. The indexed video can be used to create web pages that enable a viewer to access the video clips. The indexed video may also be used to author digital video disks (DVDs). The video may be enhanced to achieve D...

A system and a concomitant method for providing programming content in response to an audio signal. The programming content and the audio signal are transmitted in a network having a forward channel and a back channel. In one embodiment, the system comprises a local processing unit and a remote server computer. A first user provides a first audio signal containing a request for programming content from a service provider. The local processing unit receives the first audio signal and transmits th...

A system for archive integrity management and related methods are disclosed. The invention includes one or more integrity manager applications, each of which monitor the integrity of an aspect of a data archive. Some integrity manager applications monitor the integrity of processes executed by the archive system, and other integrity manager applications monitor the integrity of communication paths in the archive system. A file input integrity manager application monitors the integrity of a plura...

A data structure, such as a digital television signal, includes (a) a video stream representing a picture and (b) auxiliary information, such as a closed caption stream. In one embodiment, the picture has special content that is not visible when a decoder correctly processes the auxiliary information. When an error occurs in the decoder processing, the special content becomes visible, thereby indicating the existence of the error to an observer of the rendered picture. In another embodiment, the...

A method of fabricating a tunable quantum dot apparatus, comprising: forming multi-quantum wells sandwiched substantially between at least two barrier layers; spin coating a non-continuous mask onto at least one of said barrier layers; forming a gate material onto the mask, wherein the non-continuity of the mask substantially prevents formation of a continuous gate material layer; lifting off at least a portion of the gate material; self isolating the gate material; and, forming a top contact on...

An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a microprocessor coupled to the sensor for activating the sensor on a first periodic basis to measure the device parameter. The microprocessor includes a memory for storing the generated data signal representing the measured parameter. ...