摘要:
Tube waves are used to locate and characterize a solids deposit inside a fluid-filled pipe. An acoustic tube wave pulse is transmitted along the pipe. On encountering a solids deposit, the tube wave pulse is perturbed and partially reflected by changes in the boundary conditions between the fluid and the pipe to produce two deposit-modified acoustic waves. One is a perturbed wave travelling in the same direction as the tube wave pulse. The other is a reflected wave travelling in the opposite direction. One of these deposit-modified acoustic waves is received to produce an acoustic signal. Accumulated acoustic signals are processed by Fast-Fourier Transform to produce frequency-based digital data. Phase data from the frequency-based digital data is inverted to produce slowness spectrum data. Power data from the frequency-based digital data is inverted to produce attenuation spectrum data. Spectrum data is used to locate a solids deposit in the pipe. Inversion model processing of the spectrum data is used to estimate solids deposit thickness and type.
摘要:
Apparatuses and processes for converting an oxygenate feedstock, such as methanol and/or dimethyl ether, in a fluidized bed containing a catalyst to hydrocarbons, such as gasoline boiling components, olefins and aromatics are provided herein.
摘要:
Apparatuses and processes for converting an oxygenate feedstock, such as methanol and dimethyl ether, in a fluidized bed containing a catalyst to hydrocarbons, such as gasoline boiling components, olefins and aromatics are provided herein.
摘要:
The present invention provides an automated research seed planting system, method, and apparatus. The system, method, and apparatus may include a planter configured for planting a research plot and comprising a seed package assembly handling device configured to receive a seed package assembly containing a research seed sample, and a controller configured to communicate with the seed package assembly handling device. The controller is configured to automatically control the seed package assembly handling device to release the research seed sample. In various embodiments, the research seed planter may include a positional data acquisition system configured to acquire position data associated with one or more research seed planting events.
摘要:
A package assembly for automated aliquot and/or dispersal processes is provided. Embodiments of the present invention include, but are not limited to: first and second portions which cooperate to contain the aliquot, wherein a pair of flexure channels are defined in opposing sides of at least one of the first or second portions, the flexure channels cooperating to define a flexure axis extending through the pair of flexure channels. Thus, embodiments of the present invention may allow at least one of first and second portions of the package assembly to flex about the flexure axis in response to a force exerted on the package assembly such that the first and second portions separate in response to the force.
摘要:
A photocurable composition comprising: (a) a cationically curable component preferably formed from one or more epoxy compound(s), (b) an acrylate component having no or a low amount of hydroxy groups preferably dipentaerythritol hexaacrylate, (c) a polyol component, preferably a polyether polyol, (d) a cationic photoinitiator; and (e) a free radical photoinitiator. The composition may produce when cured three-dimensional articles with high clarity and improved mechanical properties.
摘要:
A package assembly for automated aliquot and/or dispersal processes is provided. Embodiments of the present invention include, but are not limited to: first and second portions which cooperate to contain the aliquot, wherein a flexure channel is defined in each of opposite sides of at least one of the first or second portions, the flexure channels cooperating to define a flexure axis extending through the pair of flexure channels. Thus, embodiments of the present invention may allow at least one of first and second portions of the package assembly to flex about the flexure axis in response to an opening force exerted on the package assembly such that the first and second portions separate in response to the opening force.
摘要:
Disclosed is a method, system and service for developing an end-to-end process for managing acquisitions including, developing strategies and identify an appropriate company for acquisition, managing a transaction and negotiating a deal, integrating an acquired acquisition, and tracking performance against defined business case targets and milestones.
摘要:
A method, system and computer program product for providing access to government benefits is disclosed. The method comprises positioning a short-range transmitter in a predetermined product area in a store, and storing one or more marketing messages in the short-range transmitter, wherein the one or more marketing messages are associated with one or more specific products located in the predetermined product area. The one or more marketing messages are transmitted to a wireless computer, and a user is identified as a participant in a government benefits scheme. Available under a subsidy program are communicated to a user and upon purchase of an item, an analysis of benefits available under a subsidy program is provided.
摘要:
A device and method for applying a wind force to a plurality of plants in an agricultural environment is provided to screen for selected wind-resistance traits in the plurality of plants. In one embodiment of the present invention, a device is provided including a generating device for creating a moving fluid stream to provide the wind force, a directing device, such as a duct and/or movable vane, for precisely and selectively directing the wind force towards a portion of at least one plant, and a controller for adjusting one or more parameters of the fluid stream. The device and/or method embodiments of the present invention may thus be used to selectively apply the wind force to one or more plants (or portions thereof) such that the plants may be evaluated with respect to one or more wind-resistant physical characteristics.