摘要:
A substituted benzene compound of the following formula was found to protect an insect pheromone against ultraviolet (UV) radiation degradation ##STR1## wherein R.sub.1 is H or alkoxy group of 1 to 12 carbon atoms, R.sub.2 is H, sulphonic acid or its sodium salt, R.sub.3 is H, OH, and R.sub.4 is H, OH, or methoxy group. The UV absorbing compounds of the preceding formula significantly extended the biological activity and quality of the pheromone while at the same time remaining nontoxic to the insect and nondestructive of the environment.
摘要:
A rotating suction chamber apparatus for sorting a mixture of materials comprises a cylindrical drum with its upper end is at a higher elevation than its lower end. An upper housing connected to the upper end has a material intake for receiving the mixture of materials for introduction to the upper end. The mixture of materials includes a light fraction and a heavy fraction, and the upper housing has an outlet for the light fraction. A suction hood connected to the light fraction outlet includes a light separator shaft with a substantially vertical portion, and an air blower is adapted to create an airflow from the lower end, to the upper end, through the light fraction outlet and through the suction hood. A rotator rotates the drum about its longitudinal axis so that the heavy fraction is moved through the drum and falls out of the lower end.
摘要:
By flowing an amount of hydrogen gas (25-75% of total flow), the stress of thin carbon films (100 nm-10 μm) can be reduced. The films are deposited by chemical vapor deposition (800° C.-1100° C.) using an ethylene source gas (remainder of total flow). Carbon nanotube structures infiltrated with carbon by this method will not delaminate from the growth substrate, allowing for a range of post-processing methods. One process that can be performed is to etch the carbon “floor layer”, coat the structures in a Formvar film, and then release the structures using a chemical etch. Thin films (5-100 nm) can then be deposited on the substrate-defined Formvar surface. The Formvar can be removed by a thermal annealing step (400-600° C.), or a chemical etch step, either of which will leave suspended thin films over the open portions of the structures.
摘要:
For custom message presentation, an identification module identifies an optical code as not communication ready. A message module generates a custom message indexed to the optical code in response to identifying the optical code as not communication ready. The message module further makes the optical code communication ready in response to generating the custom message. In addition, the message module communicates the custom message in response to receiving the optical code and identifying the optical code as communication ready.
摘要:
Methods and systems for producing packaged contact lenses are described. A stock product that includes a contact lens located in a contact lens packaging solution in a sealed contact lens package is provided. The stock product has one or more printing surfaces. The stock product is directed to a labeling station to produce a customer-tailored labeled product. The labeled product includes printed customer-specific indicia directly on the printing surface of the stock product. Manufacturing systems that include such labeling stations are also described. Utilizing the present methods and systems, contact lenses are labeled and supplied to different customers based on customer requirements.
摘要:
An inflatable laptop desk includes an inflatable base and a horizontal platform mounted to the base for supporting a laptop computer or other device. The base includes one or more valves that allow the base to be selectively inflated for mounting upon a user's lap and deflated for transportation and storage. An optional storage case may be incorporated into the desk.
摘要:
A grit removal unit for a waste water system, including a round grit removal chamber with an input for waste water and an output, a grit storage chamber beneath the grit removal chamber, and an opening between the grit storage chamber and the grit removal chamber. A vertical drive shaft extends through the grit removal chamber into the grit storage chamber, and is rotatable to facilitate waste water flow in the grit removal chamber whereby grit in the waste water is directed toward the opening. A grit size restrictor includes a shear secured to the drive shaft for rotation therewith (the shear including a plate extending radially from the drive shaft above the opening), a first set of bars extending across the opening, and a second set of bars secured to the bottom of the shear plate with the second set of bars positioned adjacent the first set of bars.
摘要:
Personal multimedia devices can detect when an incoming video format is different from a native format and make a local decision to convert incoming video formats to a format native to the personal multimedia device. The personal multimedia device may include a media processor that comprises an MPEG decoder/encoder, graphics processors, and a video decoder/encoder. These components increase a frame rate of a received video signal when the frame rate of the received video signal is less than a frame rate of the native video format of the personal multimedia device and decrease the frame rate of the received video signal when the frame rate of the received video signal is greater than the native frame rate of the set-top box. The graphics processor scales a frame resolution of the frames in the received video signal to correspond to the native video format.