摘要:
An electrochemical cell assembly including a plurality of testing cells, a reference cell, and fluid connections between the testing cells and the reference cell. Each of the testing cells includes a working electrode, which is a rotating disk or ring-disk electrode, and a counter electrode. A chemical composition, whose intrinsic kinetic properties under defined mass-transfer are to be investigated, is deposited on the working electrode. The reference cell holds a reference electrode that serves as a common reference electrode for each of the testing cells. The assembly permits simultaneous testing of many chemical compositions under identical environment.
摘要:
The present teachings are directed toward electrocatalyst compositions of platinum, tungsten and at least a third metal for use in fuel cells. The electrocatalyst composition is composed essentially of platinum present in an atomic percentage ranging between about 20 percent and about 55 percent, tungsten present in an atomic percentage ranging between about 30 percent and about 75 percent, and at least a third metal present in an atomic percentage ranging between about 1 percent and about 40 percent. The third metal can be at least one member selected from the group consisting of scandium, vanadium, chromium, manganese, iron, cobalt, copper, zinc, yttrium, niobium, molybdenum, cadmium, tin, hafnium, tantalum and rhenium; additional fourth and fifth metals can also be present.
摘要:
A computer program product is tangibly embodied on a computer-readable medium and includes executable code that, when executed, is configured to cause a data processing apparatus to display multiple objects in a single pane, where the multiple objects are visual representations of real objects and the multiple objects are dynamically sized and spaced relative to one another to fit all of the objects in the single pane. The computer program product includes executable code that, when executed, causes the data processing apparatus to display a subset of the objects and associated metadata in an examination frame. The examination frame is sized to fit within the single pane, where the subset of the objects displayed within the examination frame are sized larger than the objects outside of the examination frame.
摘要:
A mechanism is provided for reassigning virtual machines to resources in a computing environment. Monitoring data is collected about virtual machine request history and resource usage in a form of time series for measured indicators. Forecasted time series are computed for the measured indicators over a time window by utilizing time series forecasting. A new assignment is computed by executing a snapshot based assignment algorithm on the forecasted time series. The new assignment is used for reassignment of virtual machines on the resources in the computing environment.
摘要:
A method includes performing, on a processor, evaluating log data; determining at least one discrepancy between the log data and a system model; generating a candidate model based on the discrepancy and a model template; and updating the system model based on the candidate model.
摘要:
The present invention discloses an integrated SOFC system powered by natural gas. Specifically, a SOFC-O cell is combined with a SOFC-H cell so as to take advantage of the high operating temperature and steam reforming capabilities of the SOFC-O cell as well as the higher fuel conversion efficiency of the SOFC-H cell.
摘要:
A system includes a storage medium. The storage medium includes a model generation module that generates a candidate model based on a discrepancy and a model template. The storage medium also includes a model evaluation module that selectively updates a system model based on the candidate model.
摘要:
A method for reducing bandwidth used in multiple transmissions on a cellular network includes mapping at least one request of at least one end-device to a unicast channel between server and an intermediary in the network, creating a correlated multicast communication channel between the intermediary and the at least one end-device, and transferring data from the unicast channel to a multicast channel at the intermediary.
摘要:
A method comprising: performing on a processor, evaluating log data; determining at least one discrepancy between the log data and a system model; generating a candidate model based on the discrepancy and a model template; and updating the system model based on the candidate model.