摘要:
Highly uniform polymeric microbeads of a predetermined size, preferably having an attached fluorescent label on the surface, are prepared by causing seed particles to swell by absorption of a plurality of low molecular weight substances, at least one of which is a monomer having a reactive functional group. After absorption, the monomer is internally polymerized, and the reactive functional group is preferably reacted with a polyfunctional spacing agent thereby to provide a second reactive functional group. The latter is then reacted with a fluorescent label to provide the labeled microbead.
摘要:
Some embodiments include an apparatus comprising a spray head to spray a substrate, the substrate having a region to be sprayed and a region to be masked, the two regions separated by a boundary, and a mask having channels, the mask located between the spray head and the substrate. In an embodiment, the mask further has a lip to prevent flux overspray from falling onto a substrate below. In an embodiment, flux overspray removal is assisted with a vacuum system. Other embodiments are described and claimed.
摘要:
A driving simulator. The driving simulator may include a processor; a display connectable to the processor; a plurality of input devices, such as a steering wheel, a brake pedal, and an accelerator pedal, where each of the plurality of input devices is connectable to the processor; and a computer-readable medium. The computer-readable medium contains instructions for providing a plurality of simulated driving environments, allowing a user to select one of the plurality of simulated driving environments, allowing a user to provide environment settings, allowing a user to select a simulated vehicle to operate, activating hazards, generating a plurality of simulated vehicles, generating a profile for each of the plurality of simulated intelligent vehicles; randomly assigning spawn points to each of the plurality of simulated intelligent vehicles, displaying the simulated driving environment to a user and allowing the user to operate the simulated vehicle in the simulated driving environment using the plurality of input devices, recording the operation of the simulated vehicle through the simulated driving environment, and replaying the operation of the vehicle.
摘要:
Disclosed are methods of orienting a learner using recorded audio. Carrying out the methods may comprise recording two or more unique audio messages on an analogous number of recordable devices; positioning the recordable devices at an analogous number of unique locations; and retrieving one or more of the messages to orient a learner with respect to the locations. Carrying out the methods may further comprise recording an audio message indicating left on a first recordable device; recording an audio message indicating right on a second recordable device; attaching the first recordable device to a left article; attaching the second recordable device to a right article; and retrieving the message indicating left to identify the left article and the message indicating right to identify the right article.
摘要:
This invention relates to methods and devices that improve cell culture efficiency. They include the use of gas permeable culture compartments that reduce the use of space while maintaining uniform culture conditions, and are more suitable for automated liquid handling. They include the integration of gas permeable materials into the traditional multiple shelf format to resolve the problem of non-uniform culture conditions. They include culture devices that use surfaces comprised of gas permeable, plasma charged silicone and can integrate traditional attachment surfaces, such as those comprised of traditional tissue culture treated polystyrene. They include culture devices that integrate gas permeable, liquid permeable membranes. A variety of benefits accrue, including more optimal culture conditions during scale up and more efficient use of inventory space, incubator space, and disposal space. Furthermore, labor and contamination risk are reduced.
摘要:
A flux spray head, a mask, and an integrated circuit substrate are arranged in a flux spray station to reduce flux overspray during a spraying operation. A support element within the spray station is used to align the substrate with the mask and spray head. A portion of the mask contacts the substrate along a boundary between a region to be sprayed and a region to be masked. The flux spray head sprays the substrate while a portion of the mask is in contact with the boundary of the region to be masked. In an embodiment, the mask may comprise one or more replaceable non-stick stencil elements and associated springs to press the stencil elements against the substrate. Each stencil element may have a wall to contact the substrate along a portion of the boundary.
摘要:
Highly uniform polymeric microbeads of a predetermined size, preferably having an attached fluorescent label on the surface, are prepared by causing seed particles to swell by absorption of a plurality of low molecular weight substances, at least one of which is a monomer having a reactive functional group. After absorption, the monomer is internally polymerized, and the reactive functional group is preferably reacted with a polyfunctional spacing agent thereby to provide a second reactive functional group. The latter is then reacted with a fluorescent label to provide the labeled microbead.