摘要:
The invention relates to systems and methods that provide a higher degree of precision and a greater coordination of vehicle movement than is possible in conventional systems. A control system is designed to enforce vehicle movement along a route to a position versus time trajectory. The control system includes control equipment on the vehicle that reports its location on the track periodically. The controlling computer receives the report, and knowing where the vehicle should be and how fast it should be traveling at that point in time via a run definition table prepared for the route, calculates a position and velocity error, then calculates and sends a tractive effort adjustment command to the vehicle that attempts to reduce the position and velocity error. The invention includes a method for providing an estimated force command for a given target velocity and acceleration that can be used in the overall control methodology.
摘要:
The present invention relates generally to ground transportation systems, and more particularly to a fixed guideway transportation system that achieves a superior ratio of benefits per cost, is lower in net present cost and thus more easily justified for lower density corridors, and can provide passenger carrying capacities appropriate for higher density corridors serviced by mass rapid transit systems today. According to certain aspects, the present invention increases traffic densities by removing fixed obstacles such as track switches. In embodiments, this is achieved by providing vehicle-based switching mechanisms that interoperate with corresponding track structures to allow vehicles to switch tracks without any moving components on the track itself. According to further aspects, the invention provides a method of operating vehicle-based switching mechanisms that comply with safety requirements.
摘要:
Molecular assays that involve measurement of expression levels of prognostic biomarkers, or co-expressed biomarkers, from a biological sample obtained from a prostate cancer patient, and analysis of the measured expression levels to provide information concerning the likely prognosis for said patient, and likelihood that said patient will have a recurrence of prostate cancer, or to classify the tumor by likelihood of clinical outcome or TMPRSS2 fusion status, are provided herein.
摘要:
The present invention is directed to a multilayer film having, as its main component, a hydroxy acid polymer with improved gas barrier and optional heat sealability. The oriented film of predominately hydroxy acid polymer having controlled shrink can be produced by melting and coextruding a hydroxy acid polymer with a much thinner layer of an amorphous aromatic copolyester to form a multilayer film that is quench cooled, then biaxially stretched at a process temperature above the glass transition and below the cold crystallization temperature of the hydroxy acid polymer. A heat-setting treatment with a controlled relaxation of the film above the hydroxy acid polymer glass transition temperature and below its melt temperature may be used to control shrinkage. The films thus obtained are vacuum metallized on the aromatic copolyester surface to produce environmentally friendly packaging from predominately renewable resources having improved gas barrier properties.
摘要:
Methods and compositions are provided for the protection of normal cells from cytoreductive therapy that target proliferating cells, by administering an inhibitor of Wnt signaling pathways. Wnt signaling is critically important for homeostasis of the epithelial lining of the adult intestine and other proliferating normal adult tissues.
摘要:
An audio/video (A/V) display device capable of swapping digital/Analog A/V output modules mainly comprises a socket set up for inserting a digital/Analog A/V output module. By swapping different digital/Analog A/V output modules, said A/V display device can let users watch digital TV and DVD discs, browse photos stored in a memory card, organize data in said memory card, or play video games, etc.
摘要:
A surface acoustic wave (SAW) sensor includes a transducer (240 provided on a substrate (23), wherein the transducer (24) is oriented on the substrate (23) so that the direction of acoustic wave propagation is such that the variation of sensor output with temperature, associated with the variation of the substrate third-elastic constants with temperature, substantially equal but opposite to the sum total of the variation of sensor output with temperature associated with the substrate linear temperature coefficient of expansion and with the variations with temperature of the substrate non-zero third order elastic constants, the substrate first-order elastic constants and the substrate density. The effect of temperature variation on sensor output is thereby minimized. This is achieved with a 35-degree arrangement or with reflective gratings inclined at an angle of 3.1 degrees to normal. Additionally, a robust package with a dish is given. Particular applications include the measurement of torque.
摘要:
A system and method for inspecting a structure are provided. The system includes at least one non-destructive inspection (“NDI”) sensor capable of acquiring data indicative of at least a portion of the structure, and at least one positional sensor for acquiring positional data of the NDI sensor. The system also includes a mechanism operable to trigger the NDI sensor and/or the positional sensor to acquire data such that data indicative of the structure and the positional data are acquired at approximately the same time. The system further includes a movable arm carrying the sensors and movably attached to a base. The system includes a data acquisition system capable of communicating with the sensors such that the data acquisition system generates information indicative of at least a portion of the structure based on the data acquired by the sensors.
摘要:
A pressure monitor has a base and a lid secured to the base to define a substantially fluid tight chamber. At least part of the lid is flexible and forms a diaphragm which deflects responsive to changes in fluid pressure surrounding the monitor. A projection provided on the diaphragm transmits movement thereof to a distortable substrate located within the chamber. A first SAW device is mounted on the distortable substrate, and at least a second and third SAW device are mounted within the chamber. The second SAW device carried on a reference substrate section has its direction of propagation inclined at an angle to the direction of propagation of at least one of the first and third SAW devices. This way movement of the diaphragm induced by a change in pressure in the zone surrounding the monitor results in distortion of the distortable substrate, which is measurable by the SAW device mounted thereon, without distorting said reference substrate section.
摘要:
An improved headrest with adjustable connecting tubes is disclosed. The improved headrest comprises a main body, two connecting tubes, a socket unit and several pairs of intermediate connecting tubes. A plurality of threaded insertion holes are provided on the lower side of the main body, and the two connecting tubes may be inserted into these holes. The threaded insertion holes are spaced apart. The rectangular holes allow the adjustment in the distance between the two connecting tubes. The intermediate connecting tubes have several different diameters so that the intermediate connecting tubes may be connected with the bolts provided on the backrests of a seat for different models of automobiles. Hence, by adjusting the distance between the connecting tubes and selecting intermediate connecting tubes with a suitable diameter, the main body may be connected to the backrest of a seat for different models and makes of automobiles.