Abstract: An apparatus for gas separation a composite gas separation membrane having a gas separation layer disposed on a surface of a porous support. The gas separation layer has a plurality of gas permeable inorganic nano-particles embedded in a dense polymer forming substantially only discrete gas transport channels through the dense polymer layer, wherein direct fluid communication is provided from a feed side of the composite gas separator membrane to the porous support. Preferably, the inorganic nano-particles are porous molecular sieve particles, such as SAPO-34, ALPO-18, and Zeolite Y nano-particles.

Abstract: A method for separating the components of a mixture containing methyl methacrylate, water, and methanol in which the mixture is dehydrated in a first stage membrane unit, producing a dehydrated mixture. Methanol in the dehydrated mixture is removed in a second stage membrane unit, producing a retentate stream containing methyl methacrylate and substantially no said methanol.

Abstract: An anti-virus method which includes receiving, by a first thread, data packets belonging to the same data stream, and sequentially buffering payload data of data packets bearing file content among the received data packets into a first queue, reading, by a second thread, payload data of at least one data packet from a start position of the first queue, and determining whether payload data in the first queue is file content of a compressed file. If yes, identifying a compressed format of the compressed file, querying a decompression algorithm from a mapping between a compressed format and a decompression algorithm, by using the queried decompression algorithm, reading payload data of data packets one by one from the first queue, and performing decompression processing separately on payload data that is read each time, and performing anti-virus detection separately on file content that is obtained.

Abstract: An IPS detection processing method, a network security device and a system are disclosed. The method includes: determining, by a network security device, whether an internal network device is a client or a server; if the internal network device is the client, simplifying an IPS signature rule base to obtain an IPS signature rule base corresponding to the client, or if the internal network device is the server, simplifying the IPS signature rule base to obtain an IPS signature rule base corresponding to the server; generating a state machine according to a signature rule in the IPS signature rule base obtained through simplifying processing; and performing IPS detection on flowing-through traffic by applying the state machine. In embodiments of the present invention, the network security device performs IPS detection by adopting the state machine with a redundant state removed, thereby improving IPS detection efficiency.

Abstract: A method and a system for identifying a file type. A modification interface may be provided so that a user inputs a file feature parameter, and the file feature parameter input by the user is added to a file type configuration file, then the file type configuration file is loaded to a state machine to perform file type identification. Therefore, the user can modify a file feature parameter in the original file type configuration file, and when a file feature parameter of a file of a certain type is changed or a file of a new type appears, the user can update a file feature parameter in the state machine in time to identify the changed file or the file of the new type. In this way, the user does not need to search for an identification tool on the Internet.

Abstract: A method and an apparatus for filtering a uniform resource locator (URL). According to the method, a first category corresponding to a URL connection request can be found in a pre-stored category information table; when the first category conforms to a predetermined URL passing through policy, the URL connection request is allowed to pass through; the URL connection request is forwarded to a corresponding server; a second category corresponding to a URL is determined according to web page content returned by the server; if the second category conforms to the predetermined URL passing through policy, the web page content is sent to a client; if the second category does not conform to the predetermined URL passing through policy, the web page content is blocked. A category to which a URL belongs can be determined in real time, and implementing a function of accurate category filtration.

Abstract: A data detecting method and apparatus for a firewall device connected with a network to identify security threat in the data, where the method is implemented by a fast forwarder in the firewall device and includes: the fast forwarder receives application data; obtains application information in the received application data; determines an application protocol type corresponding to the application data according to the application information and an application identifying table; queries a configuration item for threat detection according to the application protocol type to determine whether the application data requires threat detection; and if the application data does not require threat detection, forwarding the application data. The data detecting method avoids a problem that performance of a firewall is degraded because all application data is sent to a detecting processor in the firewall device for detection, thereby improving an performance of the firewall device.

Abstract: A method for desorption of one or more gases from a liquid stream in which a liquid stream containing at least one gas is provided to the feed side of a porous membrane and a trans-membrane pressure drop from the feed side to the opposite gas side of the membrane is created, resulting in a portion of the liquid stream filling at least a portion of the pores of the porous membrane and desorption of at least a portion of the at least one gas from the liquid stream to the gas side of the porous membrane.

Abstract: A system includes a slag additive slurry feed system configured to combine a slurrying agent, a mineral slag additive, and a liquid slurrying medium to generate a stabilized mineral slurry. The slurrying agent is configured to increase a viscosity of the stabilized mineral slurry. The system also includes a partial oxidation system configured to receive the stabilized mineral slurry, a feedstock, and oxygen into a gasifier reaction chamber. The partial oxidation system is configured to partially oxidize the feedstock to produce a gaseous product and a solid product.

Abstract: A method for identifying a file type and an apparatus for identifying a file type, so as to solve a problem in the prior art that a file type cannot be effectively identified when a sender tampers with a file being transmitted. The method includes: acquiring, from a transmitted data packet, a file header of a file to be identified, and determining whether a magic number can be obtained from the file header; if the magic number can be obtained, searching for the file type that corresponds to the magic number; determining whether data of the file to be identified complies with a data structure feature of the file type; if yes, determining that a file type of the file to be identified is the file type that corresponds to the magic number; and if not, determining that a file type of the file is an abnormal type.

Abstract: A method of making a supported gas separation molecular sieve membrane. In this method a porous support, which is preferably pretreated, is contacted with a molecular sieve synthesis mixture under hydrothermal synthesis conditions. The contacting step is conducted for a shortened crystallization time period. The resulting coated porous support is calcined to yield the supported gas separation molecular sieve membrane having particularly good gas separation characteristics.

Abstract: An apparatus for gas separation a composite gas separation membrane having a gas separation layer disposed on a surface of a porous support. The gas separation layer has a plurality of gas permeable inorganic nano-particles embedded in a dense polymer forming substantially only discrete gas transport channels through the dense polymer layer, wherein direct fluid communication is provided from a feed side of the composite gas separator membrane to the porous support. Preferably, the inorganic nano-particles are porous molecular sieve particles, such as SAPO-34, ALPO-18, and Zeolite Y nano-particles.

Abstract: A system includes a slag additive slurry feed system configured to combine a slurrying agent, a mineral slag additive, and a liquid slurrying medium to generate a stabilized mineral slurry. The slurrying agent is configured to increase a viscosity of the stabilized mineral slurry. The system also includes a partial oxidation system configured to receive the stabilized mineral slurry, a feedstock, and oxygen into a gasifier reaction chamber. The partial oxidation system is configured to partially oxidize the feedstock to produce a gaseous product and a solid product.

Abstract: SAPO-34 membranes and methods for their preparation and use are described. The SAPO-34 membranes are prepared by contacting at least one surface of a porous membrane support with a synthesis gel. The Si/Al ratio of the synthesis gel can be from 0.3 to 0.15. SAPO-34 crystals are optionally applied to the surface of the support prior to synthesis. A layer of SAPO-34 crystals is formed on at least one surface of the support. SAPO-34 crystals may also form in the pores of the support. SAPO-34 membranes of the invention can have improved selectivity for certain gas mixtures, including mixtures of carbon dioxide and methane.

Abstract: SAPO-34 membranes and methods for their preparation and use are described. The SAPO-34 membranes are prepared by contacting at least one surface of a porous membrane support with a synthesis gel comprising a first and a second templating agent. SAPO-34 crystals having a narrow size distribution were applied to the surface of the support prior to synthesis. A layer of SAPO-34 crystals is formed on at least one surface of the support. SAPO-34 membranes of the invention can have improved selectivity for certain gas mixtures, including mixtures of carbon dioxide and methane.

Abstract: A coal water slurry comprises smaller and larger coal particles. The smaller coal particles are in a range of from about 20 wt % to about 90 wt % of the coal in the coal water slurry and comprise a mean particle size smaller than 25 ?m. The larger coal particles are in a range of from about 10 wt % to about 80 wt % of the coal in the coal water slurry and comprise a mean particle size in a range of from 50 ?m to 200 ?m.

Abstract: A method of oxygen enrichment in which a gaseous mixture containing O2 molecules and N2 molecules is provided to a feed side of a SAPO molecular sieve, oxygen enrichment membrane having pore sizes suitable for discriminating between O2 molecules and N2 molecules, resulting in selective transport of the O2 molecules through the membrane to a permeate side of the membrane. Also disclosed is a method for producing the membrane.

Abstract: A method of oxygen enrichment in which a gaseous mixture containing O2 molecules and N2 molecules is provided to a feed side of a SAPO molecular sieve, oxygen enrichment membrane having pore sizes suitable for discriminating between O2 molecules and N2 molecules, resulting in selective transport of the O2 molecules through the membrane to a permeate side of the membrane. Also disclosed is a method for producing the membrane.

Abstract: The present invention provides modified molecular sieve membranes with improved CO2/CH4 separation selectivity and methods for making such membranes. The molecular sieve membranes are modified by adsorption of a modifying agent, such as ammonia, within and/or on the membrane.

Abstract: A method of making a supported gas separation molecular sieve membrane. In this method a porous support, which is preferably pretreated, is contacted with a molecular sieve synthesis mixture under hydrothermal synthesis conditions. The contacting step is conducted for a shortened crystallization time period. The resulting coated porous support is calcined to yield the supported gas separation molecular sieve membrane having particularly good gas separation characteristics.