摘要:
An embodiment of the invention provides a system and method for creating a learning map, which is a device for expressing hypothesized learning target dependencies within any domain of knowledge of skill acquisition. The system and method are also able to utilize multiple data types and sources to assess whether the learning target dependencies expressed by a learning map are accurate and are configured to modify the learning map as necessary so that the learning map conforms to the reality of how students learn.
摘要:
A fuse structure for a semiconductor device is provided. The fuse structure includes a fuse layer between the upper and lower insulating layers. The fuse layer is connected to the other metal layers through the via plugs. The fuse layer includes at least two separate blocks and at least a connecting block. For the current flowing through the separated blocks in a zig-zag path, of the fuse structure provides at least a fusing point or more than one fusing points. In this way, the negative impact of the single failed fuse can be reduced, thus increasing the reliability of the fuse structure. Also the damage to the devices adjacent to the fuse due to the heat generated by the current can be prevented because when the heat generated during the fuse blowing process will be conducted to the adjacent blocks to facilitate heat dissipation.
摘要:
The invention relates to a chiral nematic display configuration, typically in liquid crystal displays, comprising a chiral nematic display of controllable planar structure and focal conic structure, characterised by the chiral nematic liquid crystal material being between two transparent substrates having conductive electrodes, the material being between two elliptical polarizers and there being an optical reflector. The invention achieves a high contrast black-and-white display. The displays in the embodiment are first and second optical mode configurations of the black-and-white chiral nematic displays.
摘要:
A razor having a base, a ceramic blade installed in the base, a plurality of ceramic rollers installed in the base at two sides of the ceramic blade. The base has a lid having a slit allowing an edge of the blade to extend through and a plurality of openings allowing portions of the rollers to extend through. The rollers are supported by at least one resilient member such that the exposed portions of the rollers can be pressed inwardly for shaving and retrieved to the original height when the pressing force is relieved.
摘要:
The present invention relates to a system and method for providing a communication network. The system comprises a ‘network-connected server having input and access capabilities, a site builder, a transmitter, a communicator, and memory. The site-builder receives instructions input from a first user and creates a dedicated network site based on the received instructions. The transmitter communicates the existence of the dedicated network site to a nominated second user. The communicator provides accesses to the contents of the dedicated network site by the first and second users. The memory stores information input by the first and the second user in the dedicated network site.
摘要:
An immunoassay cassette, apparatus, and method for detecting an analyte in a liquid body-fluid sample are disclosed. The cassette has a body and a support mounted on the body, for movement relative to the body to first and second transfer positions. Sample supplied to a sample well in the cassette body is transferred to a reagent reservoir on the cassette body, by moving the support to its first transfer position. Here the sample reacts with a first reagent composition in the reservoir effective to form a modified sample. The modified sample is then transferred to a reagent strip on the support by moving the support to its second transfer position. The reagent strip has a transfer zone at which sample material is transferred to the strip, a second reagent composition effective to react with the modified sample to form a detectable analyte-dependent product, and a detection zone located downstream at which the detectable product can be observed. By controlling movement of the support to its first and second positions, the cassette can effectively handle a variety of samples having different flow rates.
摘要:
This invention pertains to methods and compositions for the diagnosis and treatment of cardiovascular conditions. More specifically, the invention relates to isolated molecules that can be used to diagnose and/or treat cardiovascular conditions including cardiac hypertrophy, myocardial infarction, stroke, arteriosclerosis, and heart failure.
摘要:
A video display system is used to display an image signal on a display unit and a method for power conservation thereof is proposed. The video display system has a CRT controller (CRTC), an image signal generator and a power controller. The CRT controller (CRTC) generates a synchronous timing signal for the display unit and a first mask signal. The image signal generator converts the image signal into a video signal with reference to the synchronous timing signal. The power controller turns off or slows down the image signal generator during an enabling time of the first mask signal, which is either a horizontal blank time or a vertical blank time.
摘要:
An improved structure of a radiating fan comprises a blade seat, an axle center and a bearing. The central portion of the blade seat is installed with the axle center made of precision ceramic material, the outer peripheral surface of the axle center is covered by a hollow bearing made of precision ceramic material. Since the axle center and the bearing made of precision ceramic material have the advantages of long lifetime, low noise, and without using lubricating oil. Thus it is better than the axle center made of stainless steel and the oil bearing made of copper.
摘要:
A fan duct for dissipating heat generated by a central processing unit of a computer is disclosed. The fan duct has a main body defining an air inlet and an air outlet. An electrical fan is mounted to the main body below the air outlet. A knob is attached to a top wall of the main body and located above the fan. An enclosure of the computer includes a back panel and a top cover. The top cover is attached with a hook. The fan duct is firstly assembled to the back panel by extending screws through the back panel to threadedly engage with the fan duct. The top cover is then mounted to the back panel to reach a finally assembled position in which the hook engages with the knob, whereby a portion of a weight of the fan is supported by the hook.