摘要:
The present invention relates to a common rail electronic control injector, which belongs to the electronic control fuel injection system technology. The injector includes an oil inlet joint, an oil inlet located at outside the oil inlet joint, an electromagnet device, a nozzle body, a needle valve, a valve seat and spray holes, wherein the electromagnet device includes a static core, an armature and a coil, wherein a working gap between the static core and the armature is H, the armature is moveably connected with the needle valve along an axial direction. The present invention further includes a compression spring applying a force to the needle valve, a force mechanism applying a force to the armature, and a block mechanism providing an axial anti-thrust while the armature is reset. The present invention has advantages of lower manufacturing cost, better reliability and smaller driving energy.
摘要:
In a method and magnetic resonance (MR apparatus for reducing aliasing artifacts in the imaging for MR-monitored high intensity focused ultrasound HIFU therapy, a primary coil is used to receive the MR signals, and an additional coil is provided to receive interfering MR signals that form aliasing artifacts in the MR-monitored HIFU therapy imaging. The MR signals received by the primary coil and the interfering MR signals received by the additional coil are concurrently acquired. The interfering MR signals received by the additional coil are removed from the MR signals received by the primary coil. MR images are generated based on the MR signals with the interfering MR signals removed. Aliasing artifacts caused by the interfering MR signals thus are removed from the MR images without reducing the resolution of the scanned body parts in the MR images. In addition, the MR scanning time can be—maintained by using a proper phase oversampling technology in the concurrent signal acquisition.
摘要:
Broadly speaking, the present invention fills the need of selecting correlated advertisements for displaying to users by utilizing the advertisement-viewing data collected on users of a web site. The advertisement-viewing (ad-viewing) data of users of a web site can be correlated to extract similarities and patterns of ads being viewed by users of the web site. The correlated ad-viewing data of all users of the web site, along with URLs (Uniform Resource Locators) of ads viewed by a particular user, can be used to select advertisements that are likely to be interests to the particular user. Ad-viewing data correlation allows the web site to select ads to display to users in real-time based on users' latest ad-viewing data. Since selection of ads to display is based on mathematical calculation using a correlation table of ad-viewing that has been generated ahead of time, the method can be scaled to meet demands of a large amount of users, such as millions. In addition to ad-viewing correlation table and users' latest ad-viewing data, advertisement pool of advertisements paid by advertisers is also taken into consideration during the ad-selection process.
摘要:
The present invention relates to new dicyclooctane derivates represented by general formula (I), preparation processes and pharmaceutical compositions containing them, and to uses for treatment especially for dipeptidyl peptidase inhibitor (DPPIV), in which each substituent group of general formula (I) is as defined in specification.
摘要:
Combined desorption and ionization sources are provided to generate molecular ions form a sample disposed on a substrate surface. A heated gas-jet probe or heated solvent stream probe desorbs sample molecules into the gas phase. The desorbed sample molecules are ionized by reaction between the sample molecule and charged solvent droplets. The charged solvent droplets may be produced by electrospray probe or by a corona discharge. The combined desorption and ionization sources coupled by a vacuum interface to a mass spectrometer, where the sample molecule ions can be analyzed.
摘要:
A composition of a high impact glass fiber reinforced engineering plastic and a preparation method thereof, including except for glass fiber, from 30% to 70% by weight of a polyamide6 (PA6), from 15% to 25% by weight of an acrylonitrile-butadiene-styrene copolymer (ABS), from 4% to 6% by weight of a compatilizer, from 0.3% to 0.5% by weight of an antioxidant, and from 0.3% to 0.6% by weight of a lubricant are firstly added into a high-speed mixer and then mixed for 2-5 min. The blend composition is fed into a twin screw extruder, and from 10% to 30% by weight of a glass fiber is added into the twin screw extruder at the second half stage, and ground together to be granulated and molded. During the preparation, the process temperature is from 180° C. to 245° C., the screw rotating speed is from 240 rpm to 560 rpm.
摘要:
A router system includes a group of virtual routers that share at least one resource. The router system further includes a resource allocator that controls access to the at least one resource by the virtual routers.
摘要:
Multiple ionization ion sources and multiple mass analyzers are combined into one mass spectrometer instrument by a six-electrodes ion trap or an array of six-electrodes ion traps. The six-electrodes ion trap can be operated as an independent two-dimensional ion guide or linear ion tap in an arbitrarily selected direction among three orthogonal XYZ directions. The two-dimensional ion guide/linear ion trap can be alternated from one direction to another among the three orthogonal directions electrically. A six-electrodes ion trap generates six equivalent importing and exporting interfaces, each of the interfaces can be used to trap external ions and transfer the trapped ions to any of the other five interfaces. The six-electrodes ion trap provide a mass spectrometer with versatility, multiply functions, high duty-cycles and high sample throughput.
摘要:
An ion trap comprises a three-dimensional rotationally symmetric ring electrode and two cap electrodes, the ring electrode is divided, in parallel to its central axis, into a plurality of even number, equal or larger than four, of component electrodes. The component electrodes are electrically isolated from each other, the surfaces of the two cap electrodes face toward the inside of the ion trap. A mechanism is constructed and arranged for switching the ion trap to operate between a three-dimensional quadrupole ion trap mode and a two-dimensional linear ion trap mode.