摘要:
A pattern tracer and method of tracing in which the movement of a racing element along a pattern is controlled in accordance with an effective forward offset which is selectively less than the actual forward offset to optimize the tracing for speeds less than the maximum tracer speed. The effective forward offset is established by providing control angles which are based on the pattern angles as detected in accordance with a selected criterion depending upon the type of pattern curve detected. The control angles are either calculated from the detected pattern angles or are selected from previously stored pattern angles. A kerf setting for lateral offset of the tracing element from the pattern is partially defined by the actual forward offset, so that changes in the effective forward offset do not cause any corresponding changes to the lateral offset or require changes to the kerf setting.
摘要:
Methods and systems for identifying and presenting information are described. Search results are received from a search engine. An entity associated with a networked site is selected using a selection criterion. A determination is made as to whether the listing includes a link to the networked site or includes the link to the networked site at a list position that fails to satisfy a first criterion. After determining that the link to the site associated with the entity is not included in the search result listing, or that the link to the site associated with the entity is not at a position in the search result listing that satisfies the first criterion, the search listing is modified by causing the link to the site associated with the entity to appear in a first position in the search listing. The modified search listing is displayed on a user terminal.
摘要:
A fluid flow control system for a bearing supporting rotating equipment, method and apparatus is disclosed in which a rotating shaft is suspended in a fluid. Shaft precession is monitored to provide a compensatory feed back loop to maintain proper shaft registry in the face of loads.
摘要:
A long, thin annular belt-like channel is designed for use in sedimentation field flow fractionation. This channel, which may be contained in the rotor of a centrifuge, has a generally rectangular cross-section. It has an inlet positioned to introduce particulates (includes particles and/or macromolecules) approximately at the radial distance from the outer wall that is the equilibrium distance resulting from the average force field exerted on each particulate by the centrifugal force field and by the opposing normal diffusion forces due to Brownian motion. An outlet for the channel is similarly located. A modified design tapers the inlet and outlet.
摘要:
Methods and systems for identifying and presenting information are described. Search results are received from a search engine. An entity associated with a networked site is selected using a selection criterion. A determination is made as to whether the listing includes a link to the networked site or includes the link to the networked site at a list position that fails to satisfy a first criterion. After determining that the link to the site associated with the entity is not included in the search result listing, or that the link to the site associated with the entity is not at a position in the search result listing that satisfies the first criterion, the search listing is modified by causing the link to the site associated with the entity to appear in a first position in the search listing. The modified search listing is displayed on a user terminal.
摘要:
A method of predicting emissions that may include the steps of: determining a first capacity for emissions during a sliding window of time; determining a used capacity for emissions during the sliding window of time; and determining an available capacity for emissions by calculating the differential between the first capacity and the used capacity. The emission violation may be an opacity emission violation. The first capacity may be the average opacity level available to a fossil fuel fired power plant over the sliding window of time before the opacity emission violation occurs.
摘要:
A linear motor control system and method to increase apparent motor stiffness by providing linear motor resistance to perturbations caused by external forces exerted on a slide mass and a base mass. Primary and secondary sensors detect the accelerations of the slide mass and the base mass relative to ground and generate acceleration signals corresponding thereto. A position detector senses the position of the slide mass relative to the base mass and generates a position signal corresponding thereto. A signal processor processes the first and second acceleration signals and the position signal to determine deviations in the position, velocity and acceleration of the slide mass relative to the base mass from selected values caused by the external forces, and to generate a motor control signal to provide linear motor resistance against such deviations.
摘要:
Continuous, noncentrifugal, unit gravity, sedimentation process and apparatus for carrying out the process, for separating blood into an erythrocyte-enriched plasma fraction and a leukocyte/platelet-enriched plasma fraction.
摘要:
A long, thin annular belt-like channel is designed for use in sedimentation field flow fractionation. This channel, which may be the rotor of a centrifuge, is designed to maintain its thickness dimension constant by forming the radially inner wall with a radial thickness that is about balanced by the centrifugal pressure of fluid in the flow channel.
摘要:
Methods and systems are described for processing and display content. Web page data for a first web page is received from a remote system, wherein the web page is to be displayed on a terminal associated with a user. An automatic identification is performed of a first content in the first web page data. A user-defined profile is accessed. A second content is automatically selected based at least in part on the user profile. The first content is replaced with the second content so that if the first web page is displayed on the terminal associated with the user, the second content is displayed and the first content is not displayed.