摘要:
The invention relates to improved methods and systems for computationally efficient optimization of radiation dose delivery. The optimization involves determining an improved form of objective function to be used for mapping radiotherapy beams to a patient body volume having at least one target volume and at least one non-target volume. The objective function has a first term related to the at least one target volume and a second term related to the at least one non-target volume. The optimization further involves determining a minimum of the objective function, whereby beams mapped so as to pass through the at least one non-target volume are limited such that the second term is zero only if the weights of beamlets passing through the at least one non-target volume are zero. This limit helps to avoid the occurrence of negative beam weights, thereby facilitating computationally efficient determination of the minimum of the objective function using matrix inversion. Following the optimization, radiotherapy is delivered based on the determined minimum of the objective function.
摘要:
A special BIOS includes a program application manager (PAM) and a file system structure (FSS) that points to addresses on a mass storage device (MSD) for an application and at least one presentation playable by the application. The BIOS calls the PAM on startup, and the PAM checks for an application, and finding same loads and executes the application before loading the operating system (OS). In a preferred embodiment the FSS is programmable, and the system after OS boot is started checks MSD devices for new FSS parameters, and finding same loads the parameters to the programmable FSS of the BIOS. In some embodiments parameters may cause presentations and associated applications to be accessed and executed in a rotating or serial order. In other embodiments the BIOS represents its own address space in RAM to the OS at OS boot to include the application, enabling the application to continue to execute during OS boot. In further embodiments a special driver is executed after OS boot to bind the application into the OS configuration so the application may continue to operate in a stable manner.
摘要:
A dry powder inhaler has a slider for incrementally advancing a blister disk, to provide successive doses of a dry powder pharmaceutical. A blister disk is rotatably supported on a spindle on a deck plate of the inhaler. A powder port, an advancing slot, and a lifter slot extend through the deck plate. A slider is attached to the deck plate and movable between open and closed positions. As the slider is opened, a litter moves up on a ramp on the slider to shear open a blister, so that the blister contents can be mixed with air and inhaled. As the slider is moved back to the closed position, the lifter is withdrawn and an advancing finger turns the disk to bring the next blister into position for opening to provide the next dose to the patient.
摘要:
A circuit board latching device (40, 41) for use with an insulative connector housing (31) includes a retaining wall (82) and a circuit board support post (52) in which the board support post (52) is positioned opposite the retaining wall (82). The latching device (40, 41) of the present invention comprises a main body portion (56) and a mounting mechanism for mounting the main body portion to the housing (31) between the retaining wall (82) and the board support post (52). Furthermore, a latch lug (71) extends from the main body portion (56) which includes a cam surface (72) which is inclined relative to the latch lug (71), and a lock surface (73) which is substantially perpendicular to the main body portion (56). Moreover, the latching device (40, 41) includes a resilient stress reducing arm (79) projecting angularly away from the main body portion (56) toward the retaining wall (82). In one aspect, the mounting mechanism comprises a mounting platform (94) which includes a plate (106) extending from the main body portion (56). A first finger (95) extends substantially downward from one end of the plate (106) while a second finger (96) extends substantially downward from the opposite end of the plate (106) which mountingly engage the housing (31). In another aspect of the present invention, the mounting mechanism comprises an upstanding sleeve (59) mounting member extending from the main body portion (56).
摘要:
A door bolt lock structure contains: a casing, a drive element, a slide plate, and a head. The casing includes a cavity and a locking orifice. The drive element is accommodated in the cavity and includes a lock cylinder and a control lever. The slide plate slidably is received in the drive element and includes a holder, a groove, a free segment, a first locating orifice, and a second locating orifice. The head includes a trench and a threaded orifice, such that the threaded orifice is selectively aligned with the first locating orifice or the second locating orifice of the slide plate, and a second screw element is inserted through the locking orifice of the casing, the first locating orifice or the second locating orifice, and the threaded orifice of the head so as to adjustably move the head with respect to the slide plate.
摘要:
A door lock, assembled in a door sheet, is provided, wherein the door lock has a latch, a first locking mechanism, and a second locking mechanism, wherein the door lock is adapted to be assembled on the door sheet through coupling the first locking mechanism and the second locking mechanism onto the latch. The first locking mechanism and the second locking mechanism have a spiral resilient member screw and abut on a bulge so as to lock the first locking mechanism and the second locking mechanism corresponding to the door sheet. At the same time, an engaging member of the second locking mechanism can both resiliently abut against an upper engaging member and a lower engaging member of the first locking mechanism, so as to limit the lateral movement of the first locking mechanism and the latch, which is not only assembled conveniently. Besides, the engaging and abutting structures among the engaging member, the upper engaging member, and the lower engaging member as well as the spiral resilient member and the bulge are very simple and effective.
摘要:
A length adjustable door lock includes a latch assembly, a lock core connected with the latch assembly, a lock bolt connected with the lock core, and a housing sleeved on the lock bolt. The latch assembly and the lock core respectively have an embedding opening and slot having matchable shape, wherein a buckling portion is formed and provided on the lock bolt coordinately, wherein the buckling portion is adapted for being assembled in the slot of the lock core through the embedding opening, which is easy for the assembling.
摘要:
A lock, adapted for being assembled on a door panel, is provided. The door sheet has an assembling hole and a latch slot connected and communicated with the assembling hole. The lock includes a latch assembly, a first locking mechanism, and a second locking mechanism. The latch assembly is assembled in the latch slot and extended into the assembling hole. The first locking mechanism and the second locking mechanism are assembled in the assembling hole from the two sides thereof respectively to automatically position and affix the latch assembly. Because the latch assembly can be to led to move and positioned in the latch slot and the assembling hole by the first locking mechanism and no screw or other tool are required for fastening in the entire process of the assembling, the present invention is therefore easy and convenient to assemble.
摘要:
A length adjustable door lock includes a latch assembly, a lock core connected with the latch assembly, a lock bolt connected with the lock core, and a housing sleeved on the lock bolt. The latch assembly and the lock core respectively have an embedding opening and slot having matchable shape, wherein a buckling portion is formed and provided on the lock bolt coordinately, wherein the buckling portion is adapted for being assembled in the slot of the lock core through the embedding opening, which is easy for the assembling.