摘要:
Methods for distributing a random variable by spatial interpolation with statistical corrections. The method includes assigning a numerical value of the random variable at each vertex of an array of equilateral triangles formed in a planar coordinate frame and defining a plurality of test points at respective spatial locations in the planar coordinate frame that are bounded by the array of equilateral triangles. A numerical value of the random variable is distributed at each of the test points by spatial interpolation from one or more of the numerical values of the random variable assigned at each vertex of the array of equilateral triangles. The method further includes adjusting the numerical value of the random variable distributed at each of the test points with a respective correction factor.
摘要:
A flush and fill process is used to ready a fuel cell cooling circuit for initial use. An external flushing system relasably connected to the cooling circuit circulates flushing coolant through the cooling circuit to remove contaminants from the wetted surfaces of the cooling circuit before the fuel cell is put into use. The flushing system includes a pump for circulating the flushing coolant through the cooling circuit, filters for removing contaminants from the coolant and a heater for elevating the temperature of the coolant. Following the flushing process to remove contaminants, the flushing system is disconnected from the cooling circuit and the cooling circuit is filled with fresh coolant.
摘要:
A novel deionization filter for removing ions from a coolant in an electric fuel cell vehicle cooling system is disclosed. The deionization filter includes a filter housing having a coolant inlet port, through which the coolant enters the filter housing; and a coolant outlet port, through which the coolant exits the filter housing. An ion exchange bed having positively-charged and negatively-charged ion exchange resin beads is provided in the filter housing for removing negative and positive ions, respectively, from the coolant. At least one filter assembly is typically provided in the filter housing for filtering particles from the coolant.
摘要:
There is provided a method of preventing a respiratory infection by administering an effective amount of an agent for regulating ICAM-1 expression. Also provided is a composition for the prevention of respiratory infection including an agent which regulates ICAM expression. method of preventing RSV infection by administering an effective amount of an agent that interferes with the binding of RSV to ICAM-1. A method of preventing RSV infection by administering an effective amount of an agent that down regulates the expression of ICAM-1, thereby decreasing RSV binding to ICAM-1 is also provided. There is provided a method of treating RSV infection by administering an effective amount of an agent for down regulating ICAM-1 expression. A method of blocking RSV-ICAM-1 interaction by administering an effective amount of agents for blocking ICAM sites of binding is provided. Also provided is a compound for blocking RSV-ICAM-1 interaction including an agent for blocking ICAM sites of binding.
摘要:
The present invention is a system and method to significantly reduce noise associated with air-moving devices such as an axial flow fan using a fan shroud and barrel combination with built in silencers such as Helmholtz resonators. The invention can be applied to a variety of applications such as a thermal management system for a fuel cell powered vehicle. The resonator can be a hollow cavity in networks attached to an outer or inner barrel or shroud and tuned to reduce noise at predetermined noise frequency ranges within the airflow. The invention can also attach stator members on the inner surface of the outer barrel to further reduce noise. Additional sound absorbing material, such as steel wool, can be disposed within the resonator cavity.
摘要:
A novel pump pressure limiting method for preventing coolant in a cooling system from reaching pressures that exceed predetermined system coolant pressure limits. The method includes reducing the system coolant pressure, as needed to prevent system over-pressurization, by reducing the operational speed of a coolant pump used to pump the coolant through the system. In one embodiment, the system coolant pressure is determined directly, by measurement of the pressure of the coolant in the system typically using pressure sensors. The operational speed of the coolant pump is then reduced until the system coolant pressure decreases to within the predetermined pressure limits. In another embodiment, the system pressure is determined indirectly, by obtaining pressure-indicating data such as coolant temperature. The coolant system pressure is then correlated with the coolant temperature or other data and then the operational speed of the coolant pump is reduced accordingly.
摘要:
A method and system for creating a worst case scenario model for a given integrated circuit. The method comprises the steps of sorting skew parameters of each device into groups; and assigning a positive or negative value for each one of the groups to represent the effect of the corresponding skew parameters on the functionality of the integrated circuit. The preferred embodiment of the invention provides some of the benefits of both conventional corner simulation and Monte Carlo simulation. This approach can be implemented with only a few additional simulation iterations, which mitigates the disadvantage of Monte Carlo simulations requiring many simulation iterations. Also, this approach allows a greater degree of flexibility with respect to determining a specific corner file definition, allowing the designer to explore a greater area of model parameter space to insure that the circuit will meet performance requirements over extremes of process technology variation.
摘要:
A computer implemented method and system for retrieving information through a browser connected to a network. A first file of information is received which includes a first mark-up language to identify contents of the information, which contents include site identifiers. The site identifiers corresponding for example to file locations on the Internet. The first file is displayed in a browser window. Responsive to receiving the first file of information by the browser, the first file of information is parsed by a jumper to generate a list of site identifiers. This list of site identifiers is then stored by the jumper and displayed in a jumper window. Responsive to an activation by the user, a computer is directed to perform the following steps. The jumper determines which of the stored site identifiers is currently selected and automatically selects the next. Next the jumper directs the browser to access the file at the site corresponding to automatically selected site identifier. Finally, the browser is directed to display the file the browser has retrieved in the browser window.