摘要:
In general, the invention relates to providing infrastructure, process controls, and software to design, advertise, and implement an on-line contest in which participants in the contest search the Internet for a target in order to earn a reward. Hints and/or hidden objects may provide clues as to where to look for the reward, how to claim the reward, and what the reward is. The reward is funded by participating web site owners who reserve, in some embodiments via an auction, the opportunity to “host” the target during a contest or a portion of a contest, and as a result, drive traffic to their respective web sites.
摘要:
System and method of evaluating quality assurance criteria related to the delivery of a radiation therapy treatment plan. The method includes the acts of acquiring image data of a patient, generating a treatment plan for the patient based at least in part on the image data, the treatment plan including a calculated radiation dose to be delivered to the patient, acquiring an on-line image of the patient in substantially a treatment position, delivering at least a portion of the calculated radiation dose to the patient, monitoring quality assurance criteria related to the delivery of the treatment plan, calculating the radiation dose received by the patient, and determining whether delivery of the treatment plan occurred as intended based on the quality assurance criteria and the radiation dose received by the patient.
摘要:
A method of imparting a charge to droplets of a liquid which is dispensed from a trigger actuated spray device in which charge is generated by the triboelectric rubbing together of two materials and one polarity of charge is transferred to the liquid at the point of atomisation. Apparatus for imparting a charge to droplets of a liquid which is dispensed from a trigger actuated spray device includes means for generating triboelectric charge by actuation of the trigger.
摘要:
A transconcuctor circuit, such a gyrator filter, comprises an arrangement of balanced class AB transconductors, capacitors and floating MOS resistors formed by MOS transistors operating in their triode region. Tuning of the filter is effected by varying a common supply rail voltage (Vdda). In order to enable the resistance values of the MOS resistors to track changes in the transconductance values (−G) of the transconductors, a circuit provides the condition R=1/G. The circuit includes a means (102) for producing a voltage (Vcm−ΔV) offset from the common mode voltage (Vcm) of the class AB transconductors. The offset voltage is supplied to a parallel arrangement of a class AB transconductor (108) having a transconductance (−G) and the source-drain path of a MOS transistor (110) emulating a MOS resistor. The current output I=ΔV(G−1/R) of the parallel arrangement is integrated and supplied as a control voltage (cntrl) to the gate electrode of the MOS transistor (110). By loop action the control voltage is adjusted so that the loop stabilises with I=0 which occurs when R=1/G, this control voltage being supplied also to the floating MOS resistors.
摘要:
A method and system extracts a matte from images acquired of a scene. A foreground image focused at a foreground in a scene, a background image focused at a background in the scene, and a pinhole image focused on the entire scene are acquired. These three images can be acquired sequentially by a single camera, or simultaneous by three cameras. In the later case, foreground, background and pinhole sequences of images can be acquired. The pinhole image is compared to the foreground image and the background image to extract a matte representing the scene. The comparison classifies pixels in the images as foreground, background, or unknown pixels. An optimizer minimizes an error function in the form of Fourier image equations using a gradient descent method. The error function expresses pixel intensity differences.
摘要:
This invention relates to methods and a system for supporting software. In one embodiment, a method for providing an updated version of a software program includes receiving an indication of a fault in a software program, distributing the faulty software program to a distributed community of programmers, receiving updated versions of the faulty software program from a subset of the distributed community of programmers, and determining a preferred updated software program from the received updated versions of the software program. In another embodiment, a system for providing an updated version of a software program includes a communication server for communicating faulty software programs and updates of the programs to and from the distributed community of programmers, a component storage module for storing the faulty software program, and a software testing module for determining a preferred updated version of the faulty software program.
摘要:
The present invention provides a novel method of contoured-anatomy dose repositioning (CADR) as a means to automatically reposition a patient to better recover the planned dose distribution without reoptimize the treatment plan. Specifically, CADR utilizes planning CT images, the planned dose distribution, and on-line images for repositioning dose distribution on a given day. Contours are also placed upon the images using manual, automatic, template-based, or other techniques. CADR then optimizes the rigid-body repositioning of the patient so that the daily dose distribution closely matches the planned dose distribution. The present invention also provides a method of multiple-margin optimization with daily selection (MMODS) to improve radiation delivery without reoptimization. During the initial optimization procedure, plans are optimized for several margins of various contours (e.g., tight, medium, loose, etc.), or with different objectives (e.g., aggressive treatment, sensitive structure sparing, etc.). Similarly, if multiple patient image sets are available, plans can be optimized for the different anatomical layouts, either using current information, or accumulated information regarding the superposition of organ locations in the combination of images. A user can then choose in real time from a variety of optimized plans, generally with different margins, during the treatment process, and thereby compensate for a recognized change in size or position of the tumor or neighboring tissue.
摘要:
A powder charging and delivery device which comprises a receptacle having a neck portion, the receptacle containing particles of a material which can be electrostatically charged and the receptacle having a reticulated, open pore, foam material disposed within the neck thereof, whereby as the particles are dispensed from the container they travel through the pores of the reticulated foam material and thereby become electrostatically charged.
摘要:
Method and system aspects for increasing resolution of a radiotherapy system to achieve virtual fractional monitor unit radiation delivery are described. Included in a method aspect, and system for achieving same, is identification of a desired treatment dose, the desired treatment dose exceeding a resolution of a radiation treatment device. Further included is the development of a schedule of treatment sessions for delivering the desired treatment dose by the radiation treatment device that produces a combined treatment dose equaling the desired treatment dose without exceeding the resolution within each treatment session.
摘要:
The whipstock assembly comprises an assembly casing (9) with preformed windows connected to production casing (7); a landing tube (21) is located within assembly casing (9) for receiving whipstock shaft; a key is located within tube (21) for cooperation with J-slot on whipstock shaft. The whipstock consists of upper (49) and lower (55) portion which are fixed against relative rotation by splines. The assembly casing (9) with landing tube (21) is positioned in the borehole using a gyro survey tool for correct orientation of the windows. After a first side hole has been drilled, upper portion (49) is raised and rotated to place wedge surface (51) for drilling a second side hole. Tube (21) is initially closed by a cap containing a marking fluid; after the cap has been drilled out the marking fluid indicates the removal of the cap. In a second embodiment two vertically spaced side holes are drilled.