摘要:
A snap hook having a hook shank and a gate keeper. The hook shank includes a main body and a hook member that has a hook bowl and a hook bill. The hook bill and the main body define a gateway opening therebetween. The gate keeper has an outer face and has an open position and a closed position. The hook bill ends in a spigot and the gate keeper further includes a generally correspondingly dimensioned receiver such that when the gate keeper is in its closed position the spigot is at least partially received within the receiver, with the spigot and receiver thereby resisting movement of the gate keeper when a force directed in a generally inward direction toward the main body is applied to the outer face of the gate keeper.
摘要:
The invention relates to infectious clones of parvovirus B19, methods of cloning infectious B19 clones, and methods of cloning viral genomes that have secondary DNA structures that are unstable in bacterial cells. A B19 infectious clone and methods of producing B19 infectious clones are useful for producing infectious virus. Infectious virus is useful for identifying and developing therapeutically effective compositions for treatment and/or prevention of human parvovirus B19 infections.
摘要:
An activity-based itinerary planning tool permits a trip planner to incrementally build and itinerary starting at a selected entry point and adding activities in a step-by-step manner, by taking into account commute times for different types of transportation and entry/exit conditions for particular activities/facilities in order to present the user with lists of all activities/facilities that can be reached from the entry point or from already selected activities/facilities.
摘要:
A radiation therapy/surgery device optimised to meet the needs of the Neurosurgeon is provided, i.e. one for the treatment of tumours in the brain. It combines the qualities of a good penumbra and accuracy, simple prescription and operation, together with high reliability and minimal technical support. The device comprises a rotateable support, on which is provided a mount extending from the support out of the plane of the circle, and a radiation source attached to the mount via a pivot, the pivot having an axis which passes through the axis of rotation of the support, the radiation source being aligned so as to produce a beam which passes through the co-incidence of the rotation axis and the pivot. It will generally be easier to engineer the apparatus if the rotateable support is planar, and more convenient if the rotateable support is disposed in an upright position. The rotation of the rotateable support will be eased if this part of the apparatus is circular. A particularly preferred orientation is one in which the radiation source is spaced from the rotateable support, to allow it to pivot without fouling the latter. It is thus preferred that the mount extends transverse to the support. In this way, the pivot axis is spaced from the rotateable support providing free space in which the radiation source can pivot. Another way of expressing this preference is to state that the pivot axis is located out of the plane of the rotateable support. To simplify the geometry of the device and the associated arithmetic, it is preferred both that the pivot axis is substantially perpendicular to the rotation axis, and that the beam direction is perpendicular to the pivot axis. It is preferred that the radiation source is a linear accelerator. The output of the radiation source is preferably collimated to conform to the shape of the area to be treated.
摘要:
The present invention provides a way of placing a physical layer device into a standby mode. After a link is established between multiple devices, a determination is made whether the device has data to transmit or whether a standby request was received from a link partner. If a standby request was received or the device has no data to transmit, standby mode is entered. In standby mode, unneeded circuitry is powered down. A transmitter in a channel and a receive path in a separate channel remain powered. While operating in standby mode, the PHY layer continuously transmits a standby code on the one or more channels that are not powered down. Standby mode is discontinued when a transceiver has data to transmit or when energy is detected on the powered down channels. Standby mode is also discontinued when no standby code is received, indicating a disconnect between devices.
摘要:
The present invention relates to a method of treating a metal substrate to provide permanent corrosion resistance. The method comprises applying a solution containing one or more vinyl silanes in admixture with one or more multi-silyl-functional silanes to a metal substrate in order to form a coating. The method is particularly suitable for use on zinc coated surfaces.
摘要:
A method for processing one or more reconstructed images includes receiving a first reconstructed image having a first image resolution and receiving a second reconstructed image having a second image resolution. The first resolution is greater than the second resolution. The method further includes generating a contrast-dependent resolution image by combining the first and second reconstructed images single image so that the first reconstructed image contributes to a greater degree to the contrast-dependent resolution image for higher contrasts regions of the images and the second reconstructed image contributes to a greater degree to the contrast-dependent resolution image for lower contrasts regions of the images.
摘要:
A method for coating a metallic surface with an aqueous composition for pretreating before applying another coating or for treating said metallic surfaces. The method is characterized in that the composition contains, in addition to water; a) at least one hydrolyzable or at least partially hydrolyzed fluorine-free silane, and; b) at least one hydrolyzable or at least partially hydrolyzed fluorine-containing silane. The invention also relates to corresponding compositions.
摘要:
The present invention therefore provides a method for the analysis of radiographic images, comprising the steps of acquiring a plurality of projection images of a patient, acquiring a surrogate signal indicative of the location of a target structure in the patient, reconstructing a plurality of volumetric images of the patient from the projection images, each volumetric image being reconstructed from projection images having a like breathing phase, identifying the position of the target structure such as a tumor in each volumetric image, associating a surrogate signal with each of the projection images, and determining a relationship between the surrogate signal and the position of the target structure. Multiple projection images having a like breathing phase can be grouped for reconstruction, to provide sufficient numbers for reconstruction. The analysis of the multiple values of the surrogate associated with each breathing phase can be used to determine the mean surrogate value and its variation. Multiple values of the surrogate signal associated with the same nominal breathing phase can be used to determine a mean value of the surrogate signal for the target position associated with that phase and a variation of the value of the surrogate signal for the target position associated with that phase. The breathing phase of specific projection images can be obtained by analysis of one or more features in the images, such as the method we described in U.S. Pat. No. 7,356,112, or otherwise.
摘要:
Methods and systems of operating a support structure and beam shaping mechanism in a manner that compensates for motion patterns exhibited by a patient, promotes comfort of the patient, and optimizes accuracy of delivery of radiotherapy to a targeted location within the patient. The support structure can be a treatment table or couch and the beam shaping mechanism can be a multi-leaf collimator (MLC), and/or an MLC-bank/-carriage. The control system can utilize algorithms for predicting tumor motion and loading condition on the table/couch during radiation therapy.