摘要:
A cool hydrogen-propelled cyclone quench box comprises: a mixing chamber (7) arranged at the center of a lower support plate (11); swirl tubes (6) arranged above the lower support plate (11) and outside the mixing chamber (7), the tubes being in tangential communication with the body of the mixing chamber (7) along a horizontal direction; a gas-liquid downcomer (5) perpendicularly arranged outside each swirl tube (6), the bottom portions of the downcomers and the outer walls of the swirl tubes (6) being in tangential communication along a perpendicular direction, and the top portions of the gas-liquid downcomers (5) being connected to fluid inlets (4) arranged on an upper support plate (3). The bottom end of a cool hydrogen branch pipe (8) is arranged outside each swirl tube (6), and is tangentially connected to the swirl tube (6) along a horizontal direction. By means of a flange (2) arranged on the upper support plate (3), the top ends of the cool hydrogen branch pipes (8) connect to a cool hydrogen pipe (1) arranged outside the upper support plate (3). Upper-level cyclone blades (12) are installed within the mixing chamber (7). The bottom ends of the blades (12) are perpendicularly arranged on the upper-level blade support plate (13). Lower-level cyclone blades (9) are installed at the mixing chamber (7) outlet; the bottom ends of the blades (9) are perpendicularly arranged on the lower-level blade support plate (10).
摘要:
This utility model discloses a laser light source for aiming device, comprising a laser chip. The top layer of the laser chip is equipped with a light source set, which comprises at least two laser light sources. The laser chip is equipped with an electrode laminate connected to an electrode of the laser light source at the bottom layer and the laser chip is further equipped with an electrode terminal set at the top layer. The electrode terminal set comprises several electrode terminals, the electrode terminal corresponds to the laser light source one to one, and the other electrode of each laser light source is connected to the corresponding electrode terminal. This utility model aims to overcome the shortcomings of exiting technology and provide a laser light source for aiming device in a wider range of scenarios.
摘要:
A method for preparing a rosuvastatin calcium intermediate, including a) contacting a halogenated ethene with magnesium metal to obtain a halogenated ethene Grignard reagent, and carrying out a Grignard reaction between the halogenated ethene Grignard reagent and R-epichlorohydrin; b) adding sodium cyanide for carrying out a nucleophilic substitution reaction; c) adding alcohol for carrying out an alcoholysis reaction; d) adding a basic solvent for carrying out protection of a first hydroxyl group; e) selectively oxidizing a second hydroxyl group; and f) adding triphenylphosphine in alkaline condition for carrying out a Wittig reaction.
摘要:
A method for preparing a rosuvastatin calcium intermediate, including a) contacting a halogenated ethene with magnesium metal to obtain a halogenated ethene Grignard reagent, and carrying out a Grignard reaction between the halogenated ethene Grignard reagent and R-epichlorohydrin; b) adding sodium cyanide for carrying out a nucleophilic substitution reaction; c) adding alcohol for carrying out an alcoholysis reaction; d) adding a basic solvent for carrying out protection of a first hydroxyl group; e) selectively oxidizing a second hydroxyl group; and f) adding triphenylphosphine in alkaline condition for carrying out a Wittig reaction.
摘要:
A locking mechanism for securely attaching an accessory mount to a firearm having a Picatinny/Weaver mounting rail. The locking mechanism includes a resiliently biased slider jam that is received within a transverse groove of the Picatinny/Weaver rail. A clip is provided to clamp the accessory mount to the rail by a locking screw. A locking screw spring may urge the clip away from a tight engagement with the rail when the locking screw is in a loosened condition. The locking mechanism is adaptable to all Picatinny/Weaver rails and provides a rock solid firearm accessory mounting system.
摘要:
A cool hydrogen-propelled cyclone quench box comprises: a mixing chamber (7) arranged at the center of a lower support plate (11); swirl tubes (6) arranged above the lower support plate (11) and outside the mixing chamber (7), the tubes being in tangential communication with the body of the mixing chamber (7) along a horizontal direction; a gas-liquid downcomer (5) perpendicularly arranged outside each swirl tube (6), the bottom portions of the downcomers and the outer walls of the swirl tubes (6) being in tangential communication along a perpendicular direction, and the top portions of the gas-liquid downcomers (5) being connected to fluid inlets (4) arranged on an upper support plate (3). The bottom end of a cool hydrogen branch pipe (8) is arranged outside each swirl tube (6), and is tangentially connected to the swirl tube (6) along a horizontal direction. By means of a flange (2) arranged on the upper support plate (3), the top ends of the cool hydrogen branch pipes (8) connect to a cool hydrogen pipe (1) arranged outside the upper support plate (3). Upper-level cyclone blades (12) are installed within the mixing chamber (7). The bottom ends of the blades (12) are perpendicularly arranged on the upper-level blade support plate (13). Lower-level cyclone blades (9) are installed at the mixing chamber (7) outlet; the bottom ends of the blades (9) are perpendicularly arranged on the lower-level blade support plate (10).
摘要:
In Universal Network, there is disclosed a method and system for realizing location management of multihomed terminals, the system comprises home domains and foreign domains, in which the home domains of a multihomed terminal refer to the domains managing the multihomed terminal; the other domains are the foreign domains of the multihomed terminal; each domain includes at least one Identifier Mapping Server and one Accessing-Switching Router; the Identifier Mapping Server memorizes and manages the mapping information; and the Accessing-Switching Router allocates the mapping information for multihomed terminals. This invention facilitates the implement of multihoming in the Internet and makes the network resources be used efficiently. Especially, the Internet service providers can manage the multihomed terminals easily and efficiently.
摘要:
A locking mechanism for securely attaching an accessory mount to a firearm having a Picatinny/Weaver mounting rail. The locking mechanism includes a resiliently biased slider jam that is received within a transverse groove of the Picatinny/Weaver rail. A clip is provided to clamp the accessory mount to the rail by a locking screw. A locking screw spring may urge the clip away from a tight engagement with the rail when the locking screw is in a loosened condition. The locking mechanism is adaptable to all Picatinny/Weaver rails and provides a rock solid firearm accessory mounting system.
摘要:
In Universal Network, there is disclosed a method and system for realizing location management of multihomed terminals, the system comprises home domains and foreign domains, in which the home domains of a multihomed terminal refer to the domains managing the multihomed terminal; the other domains are the foreign domains of the multihomed terminal; each domain includes at least one Identifier Mapping Server and one Accessing-Switching Router; the Identifier Mapping Server memorizes and manages the mapping information; and the Accessing-Switching Router allocates the mapping information for multihomed terminals. This invention facilitates the implement of multihoming in the Internet and makes the network resources be used efficiently. Especially, the Internet service providers can manage the multihomed terminals easily and efficiently.