Abstract:
A precast prestress raised access floor construction is provided which includes a precast prestress concrete slab, having an upper base floor surface and a lower surface, a plurality of raised access floor panel pedestal support members bearing directly upon the upper base floor surface, and a plurality of raised access floor panels connected to the support means whereby a void is formed between the floor panels and the upper base floor surface.
Abstract:
Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer; contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide.
Abstract:
A remotely programmable system for authorizing customer purchases includes a portable unit having a method for obtaining the customer's information, a method for entering the purchase amount and customer's signature, a mesh-capable wireless transceiver for securely transmitting the customer's information to a mesh-capable host device, where said mesh-capable host device can then securely transmit the customer's information over a wide area network (WAN) to a transaction processor. The transaction processor verifies the customer's information, the amount of the purchase, and other applicable information with a third-party processor or financial institution that then transmits an authorization code back to the transaction processor. The authorization code is transmitted back to the portable unit through the mesh-capable host device. Once the portable unit receives the authorization code, the customer is prompted to provide the customer's final approval by signature on a touch screen, signature pad, or the like. Once the customer's final approval is obtained, the customer's information, the purchase amount, the authorization code, and the customer's signature are transmitted back to the transaction processor through the mesh-capable host device.
Abstract:
A system and method for battery protection. In some aspects, a method of a method for operating a battery pack. The battery pack having a battery pack condition, and the battery pack condition having a range. The method including the acts of conducting an operation including the battery pack, measuring a first measurement of the battery pack condition, measuring a second measurement of the battery pack condition, averaging the first measurement and the second measurement to provide an average measurement and if the average measurement is within the range, continuing the operation including the battery pack. At least one of the first measurement and the second measurement being outside of the range.
Abstract:
A combination including a battery pack and a battery charger operable to supply a charging current to the battery pack. The battery pack includes a first battery terminal, a second battery terminal, and a battery cell having a present state of charge. The battery cell is coupled to at least one of the first battery terminal and the second battery terminal. The battery pack also includes a battery microcontroller coupled to at least one of the first battery terminal and the second battery terminal. The microcontroller is operable to measure the present state of charge of the battery cell to produce battery cell present state of charge measurements. The battery charger includes a first charger terminal configured to couple to at least one of the first battery terminal and the second battery terminal and a second charger terminal configured to couple to at least one of the first battery terminal and the second battery terminal. The first charger terminal is configured to supply charging current to the battery pack. The battery charger also includes a charger microcontroller coupled to the second charger terminal and operable to receive the battery cell present state of charge measurements from the battery microcontroller. The charger microcontroller is also operable to supply the charging current to the battery pack in pulses, wherein each pulse includes a first time interval where charging current is being supplied to the battery and a second time interval where charging current is being suspended from the battery. The microcontroller is further operable to modify the first time interval of a pulse based at least in part on the battery cell present state of charge measurements received from the battery microcontroller.
Abstract:
A system and method for battery protection. In some aspects, a method of conducting an operation including a battery pack, includes the acts of monitoring a first battery pack condition at a first monitoring rate, determining when a second battery pack condition reaches a threshold, after the second battery pack condition reaches the threshold, monitoring the first battery pack condition at a second monitoring rate, the second monitoring rate being different than the first monitoring rate. In some aspects, a method of conducting an operation including a battery, the battery including a cell having a voltage, power being transferable between the cell and the electrical device, a controller operable to control a function of the battery pack, the controller being operable with a voltage at least one of equal to and greater than an operating voltage threshold, the cell being operable to selectively supply voltage to the controller, includes the act of enabling the controller to operate when the voltage supplied by the cell is below the operating voltage threshold.
Abstract:
A computer program product being embodied on a computer readable medium for using voice data traffic to reproduce a user experience for facilitating troubleshooting at least one of a plurality of VoIP stations, the computer program product including computer-executable instructions for: retrieving packets of the voice data traffic associated with the at least one of the VoIP stations; identifying time stamps associated with the retrieved packets; determining an amount of jitter associated with each of the retrieved packets at least partially dependently upon the identified time stamps; determining whether each of the retrieved packets will fit into a jitter buffer at least partially dependently upon the determined amounts of jitter; dropping select ones of the retrieved packets dependently upon the determining whether each of the retrieved packets will fit into the jitter buffer; and, filling a buffer with at least select ones of the retrieved data packets not dropped.