摘要:
A method of preparing carbon nanotubes (CNT), a method of purifying carbon nanotubes, carbon nanotubes, and an element using said carbon nanotubes are provided. The method includes preparing carbon nanotubes by arc-discharge and employs a coordination chemistry process to remove a catalyst and/or optional promoter used in arc-discharge.
摘要:
A process of a preparing transparent conductive carbon nanotube (CNT) film, the carbon nanotube film prepared by the process, and carbon nanotube elements including the carbon nanotube film are provided. The carbon nanotube film has a higher transparency and much lower sheet resistance compared with the carbon nanotube film obtained by a conventional filtration process.
摘要:
Carbon nanotubes, a method for preparing the same and an element using the same are provided. The method for preparing carbon nanotubes includes synthesizing carbon nanotubes from carbon source using an arc-discharge method in the presence of catalysts and promoter, wherein the promoter contains an element capable of reducing the surface energy of carbon nanotubes. Carbon nanotubes with high purity and narrow diameter distribution can thus be prepared.
摘要:
A system and method for controlling base stations for multimedia broadcast communications. In one embodiment, a base station 730 includes a reporting subsystem 740 configured to broadcast at least one of a counting report request and a channel quality indictor report request to user equipment 780 in a service area thereof. The reporting subsystem 740 is also configured to process at least one of a counting report and a channel quality indicator report received from the user equipment 780 and provide an activity status report therefrom. The base station 730 also includes a dynamic single frequency network subsystem 745 configured to determine to provide multimedia broadcast and multicast services in the service area thereof as a function of an activity status report from another base station 760.
摘要:
FIG. 1 is an exploded rear perspective view of a car mount showing my new design; FIG. 2 is a front perspective view of the car mount fully assembled; FIG. 3 is a front elevation view of the car mount fully assembled; FIG. 4 is another front elevation view of the car mount fully assembled in an alternate position; FIG. 5 is a rear elevation view of the car mount fully assembled; FIG. 6 is a rear elevation view of the front part of the car mount shown without the rear part; FIG. 7 is a left side elevation view of the car mount fully assembled; FIG. 8 is a right side elevation view of the car mount fully assembled; FIG. 9 is a top plan view of the car mount fullyassembled; and, FIG. 10 is a bottom plan view of the car mount fully assembled. Broken lines illustrate portions of the car mount that form no part of the claimed design.
摘要:
FIG. 1 is a front perspective view of a wedge pillow, showing my new design; FIG. 2 is a rear perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side view, the right side view being a mirror image of FIG. 5; FIG. 6 is a top plan view thereof; and, FIG. 7 is a bottom plan view thereof.
摘要:
FIG. 1 is a first perspective view of a commodity shelf showing my new design; FIG. 2 is a second perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a back view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top view thereof; FIG. 8 is a bottom view thereof; FIG. 9 is an enlarged view of the selected portion 9 in FIG. 1; and, FIG. 10 is an enlarged view of the selected portion 10 in FIG. 2. The broken lines shown in the drawings depict portions of the commodity shelf that form no part of the claimed design.
摘要:
A method and system for selecting a critical plane. The critical plane can then be used to leverage off of uniaxial fatigue theory to predict the fatigue life of an object experiencing multiple stress inducing events. The fatigue life is based on calculating a single critical plane that encompasses all the stress inducing events.
摘要:
A method of dynamic durability analysis and fatigue area identification using modal techniques for a structure includes the steps of simulating a finite element model of the structure to determine modal stresses and modal displacements for an element of the structure and performing a modal transient analysis using the modal displacements. The method also includes the steps of determining a stress bound for the element from the modal stresses and modal transient analysis, determining if a stress bound for the element is greater than a predetermined value and identifying the element as a critical element if the stress bound for the element is greater than the predetermined value. The method further includes the steps of determining a stress time history for the critical element and using the stress time history to perform a fatigue analysis to identify an area of fatigue within the structure.