摘要:
The present invention is a composition for forming seals. The composition includes a base material and a hydrogel. The base material is preferably an elastomer or a thermoplastic. Seals formed with the composition are particularly suited for use in a wellbore environment. The inclusion of hydrogel in the seals allows the seals to be manipulated or altered through certain environmental factors. For instance, temperature, oil/water ratio, pH and the electronic field may all be used to alter the characteristics of the hydrogel. In this way, the seal may be caused to swell in response to a specific stimulus, thereby preventing or sealing a leak without requiring additional work or input from the operator.
摘要:
A computer readable memory to direct a computer to improve the perceived audio quality of a speaker included in that computer. The computer readable memory stores a first, second and third set of instructions. The first set of instructions causes the computer to determine the speaker type. The second set of instructions causes the computer to select a set of default filter coefficients for a digital filter based upon the speaker type. Finally, the third set of instructions causes the computer to realize a digital parametric equalizer using a digital filter and the set of default filter coefficients. Thus, the digital filter alters the audio signal that is input to the speaker, thereby improving the perceived quality of the speaker.
摘要:
A catalyst system for the (co)polymerization of propylene contains (A) a solid catalyst component comprising titanium, magnesium, halogen and a 1,3-diether; (B) an organic aluminum compound; and optionally (C) an organic silicon compound. In comparison with the prior art, stereospecificity of the polymer prepared by using the catalyst system of this invention evenl containing no external electron-donor is greater than 99%. Also, the activity of the catalyst system and hydrogen gas adjustability on the molecular weight of the polymer do not significantly decrease.
摘要:
A method of providing papillomavirus like articles which may be used for diagnostic purposes or for incorporation in a vaccine for use in relation to infections causd by papillomavirus. The method includes an initial step of constructing one or more recombinant DNA molecules which each encode papillomavirus L1 protein or a combination of papillomavirus L1 protein and papillomavirus L2 protein followed by a further step of transfecting a suitable host cell with one or more of the recombinant DNA molecules so that virus like particles (VLPs) are produced within the cell after expression of the L1 or combination of L1 and L2 proteins. The VLPs are also claimed per se as well as vaccines incorporating the VLPs.
摘要:
Siphonic, gravity-powered toilets are provided that include a toilet bowl assembly having a toilet bowl. The toilet bowl has a rim channel provided along an upper periphery thereof and a direct-fed jet channel that allows fluid, such as water, to flow from the inlet of the toilet bowl assembly to the direct-fed jet outlet port into the interior of the toilet bowl, in the sump of the bowl. The rim channel includes at least one rim channel outlet port. In the toilets herein, the cross-sectional areas of the toilet bowl assembly inlet, the inlet port to the rim channel, and the outlet port to the direct-fed jet channel are configured so as to be optimized to provide greatly improved hydraulic function at low flush volumes (no greater than about 6.0 liters per flush). The hydraulic function is improved in terms of bulk removal of waste and cleansing of the bowl.
摘要:
A siphonic, gravity-powered toilet bowl assembly having a toilet bowl, which includes a bowl inlet in fluid communication with a source of fluid; a rim around an upper perimeter of the bowl defining a rim channel, having an inlet port in fluid communication with the bowl inlet and at least one outlet port; a bowl outlet in fluid communication with a sewage outlet; a direct-fed jet having an inlet port in fluid communication with the bowl inlet for receiving fluid and the bowl outlet for discharging fluid; and a control unit arranged in communication with the bowl inlet for controlling flow from the source of fluid passing through the bowl inlet into the inlet ports of the rim channel and the direct-fed jet, having a first extending rear portion and a second rim channel end portion, wherein the rear portion may extend at least partially into the bowl inlet.
摘要:
Various methods, systems, and computer program products are disclosed for determining relevance of a promotional message based on caller feedback. The method may include receiving at least one phone call, the at least one phone call indicating a phone number that was called to make the at least one phone call. The method may include associating the at least one phone call with a promotional message or promotional message group via the phone number, the promotional message group comprising one or more promotional messages. The method may include receiving feedback that indicates a user experience associated with the at least one phone call. The method may include determining a relevance of the promotional message or promotional message group based on the received feedback.
摘要:
A surgical milling cutter includes a milling cutter holder, a locking device, a locking seat, and a main machine. The milling cutter holder includes a fixing seat with a through hole. A finger guider with an L-type holder on a top end thereof is arranged at an upper part of the fixing seat. A distal end of a short side of the L-type holder is disposed with a downward projection, and a lowest point of the projection is lower than that of a cylindrical head when the milling cutter works normally. A bolt with a central through hole is fixed in a cavity of the finger guider. A pressing disk is arranged at the upper part of the fixing seat, and a nut is connected to the bolt through a hole in the pressing disk.
摘要:
This specification describes technologies relating to content presentation. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of determining a location history for a user, where the location history includes a plurality of location data points for the user; analyzing the location history to derive a category for the user; associating the user with the category; and using the user's associated category to boost one or more candidate content items for delivery to the user.
摘要:
A surgical milling cutter includes a milling cutter bracket, a locking device and a bottom electric motor connected successively. The milling cutter bracket includes a fixing seat with a through hole. A finger guide apparatus with an L-type first bracket at the top end thereof is provided on the upper part of the fixing seat. The end of the L-type first bracket's short side is provided with a downward projection. The lowest point of the projection is lower than that of the milling cutter's cylindrical head when the milling cutter is working normally. The surgical milling cutter utilizes the projection to prevent the possibility of an object contacting with the cylindrical head, thus avoiding an object being cut unevenly. Meanwhile, the L-type bracket can be driven by the finger guide apparatus to rotate so as to change the running direction of the milling cutter, thus facilitating surgical procedures.