摘要:
A transistor of SiC having a drain and a highly doped substrate layer is formed on the drain. A highly n type buffer layer may optionally be formed on the substrate layer. A low doped n-type drift layer, a p-type base layer, a high doped n-type source region layer and a source are formed on the substrate layer. An insulating layer with a gate electrode is arranged on top of the base layer and extends substantially laterally from at least the source region layer to a n-type layer. When a voltage is applied to the gate electrode, a conducting inversion channel is formed extending substantially laterally in the base layer at an interface of the p-type base layer and the insulating layer. The p-type base layer is low doped in a region next to the interface to the insulating layer at which the inversion channel is formed and highly doped in a region thereunder next to the drift layer.
摘要:
A semiconductor device of SiC is adapted to hold high voltages in the blocking state thereof. The device comprises two parts (1, 2) each comprising one or more semiconductor layers of SiC and connected in series between two opposite terminals of the device, namely a sub-semiconductor device (1) able to withstand only low voltages in the blocking state thereof and a voltage-limiting part (2) able to withstand high voltages in the blocking state of the device and adapted to protect said sub-semiconductor device by taking a major part of the voltage over the device in the blocking state thereof.
摘要:
A sling device for surgical implantation into human recipient to support the urethra, the sling including an elongated strip of supple material. The elongated strip has a center portion, opposite first and second side portions, and a slot passing through the center portion, through which one of the side portions can pass, thereby forming a loop in the elongated strip. The material is a biological acceptable material for implantation into the human recipient, preferably selected from the group consisting of synthetic polymers, processed animal tissues, and combination thereof. A method of reducing the incidence of involuntary urination or restoring urinary continence in an incontinent human subject is also disclosed, including the steps of providing a sling device of the type previously described and surgically implanting the sling device in the human subject so that the urethra is biased upward so as to elevate the urethra.
摘要:
A blister pack (10) comprises a support sheet (12) having a plurality of pockets (14) each of which retains a tablet (25) so that it rests on an edge (24) with its opposing edge (24) adjacent to a frangible cover sheet (20) which closes the pockets. The pockets comprise a support portion (22) which retains the tablets on their edge, and a guide portion (26) for facilitating loading of the tablets (25) into the support portion (22). The blister pack (10) can be mounted on a plate (50) for relative movement therewith, and a tablet (25) ejected from a pocket (14) by pushing the tablet (25) through the frangible cover sheet (20) and then through a dispensing window (67) in the plate (50).
摘要:
An apparatus for dispensing a pallet sleeve beneath a load comprises a conveyor component including conveyor elements configured to convey the load thereon in a first direction, one or more stations spaced apart along the first direction and a mechanism for changing the relative vertical positions of the conveyor elements and the stations. The apparatus further includes a pallet sleeve dispenser adjacent the conveyor component and configured for storing pallet sleeves in spaced apart sections aligned with a corresponding station. A drive element associated with each of the stations is configured to engage a pallet sleeve to drive the pallet sleeve from the dispenser to the conveyor component in a second direction substantially perpendicular to the first direction. A retention mechanism is provided to support a stack of pallet sleeves above a lowermost sleeve being driven from the dispenser to the position underneath the load on the conveyor component.
摘要:
A method of configuring a communication channel prior to the transmission of an input signal along the communication channel, the communication channel comprising a plurality of sub-channels, the method comprising determining the strength of the input signal and in accordance with the determined signal strength, selecting a set of the plurality of sub-channels and transmitting said input signal along the set of sub-channels in parallel, wherein each of the sub-channels has a predetermined noise characteristic such that the set of selected sub-channels exhibits a combined noise characteristic in which the standard deviation of the noise is proportional to the signal strength.
摘要:
A vehicle tracking system for tracking a position of at least one vehicle of a plurality of vehicles within a region, includes a plurality of identifiers, an imaging device, and a controller. At least one of the identifiers is provided on each of the vehicles. The imaging device is configured to generate image data including (i) region data representative of the region and (ii) identifier data representative of the identifiers located in the region. The controller is configured (i) to process the identifier data to generate position data representative of a position of each of the identifiers within the region, (ii) to process the identifier data to generate identification data that are unique to each identifier, and (iii) to output at least one of the image data, the position data, and the identification data to a monitor.
摘要:
A load moving apparatus is operable to move a load, such as a stack of sheet product, in a first and second direction on a staging area. The load moving apparatus includes a first conveyor, a second conveyor, and a translating device. The first conveyor defines the staging area and is configured to move a load in a first direction. The second conveyor is positioned within the staging area and is configured to move the load in a second direction different from the first direction. The translating device is configured to move vertically one of the first conveyor and the second conveyor relative to the other of the first conveyor and the second conveyor. The load moving apparatus can be used to build or break down loads entering the staging area.