Abstract:
A synthesis method of 3-methylamino-1,2-propanediol is disclosed in the invention, and it includes the following steps: (1) adding glycerin chlorohydrin, aqueous monomethylamine solution and an amination catalyst, namely NaOH solution and NaHCO3, into a reactor, mixing the material sufficiently, and allowing amination reaction to proceed in two temperature stages; (2) removing monomethylamine and water from the amination solution after the amination reaction is completed, filtering out the solid resultant, and feeding the filtrate into a still; (3) distilling under reduced pressure to obtain 3-methylamino-1,2-propanediol, wherein the vacuum for distillation under reduced pressure is equal to or greater than 0.099 MPa and the temperature is 130-160° C. The product synthesized according to the invention, a liquid appearing colorless and transparent, has increased purity of over 99.5% (GC) and decreased impurities. Therefore, when this product is used for synthesis of iopromide as a hypo-osmolar nonionic contrast medium, it exactly meets the quality demand.
Abstract:
A method, system, and device for realizing an Internet Protocol television (IPTV) service are provided. The method includes the following steps. A message sent by a user terminal in a protocol format compatible with an IP multimedia subsystem (IMS) is received. The message in the protocol format compatible with the IMS is converted to a message in a protocol format compatible with an IPTV system. The message in the converted protocol format compatible with the IPTV system is transmitted to a corresponding entity in the IPTV system according to the content of the message. A conversion device is added between the conventional IPTV system and the IMS, so as to solve the problem in the prior art that a thorough and overall modification must be performed on the existing network system, thereby realizing interworking between the conventional IPTV system and the IMS, and achieving smooth upgrading of the IPTV system in the IMS network.
Abstract:
A method and an apparatus for playing dynamic audio and video menus are provided herein to play two or more audio and video menu items dynamically. Specifically, the audio and video data in at least two obtained audio and video menu items are split into audio data and video data, respectively. After the splitting, the obtained video data is integrated into one video stream data and the audio data and the integrated video stream data are played. In this way, the video data of each menu item in the dynamic audio and video menus are played smoothly and the voice prompts can be spliced seamlessly. As such, the effect of the audio dynamic menus is the same as the effect of playing a single audio file, and the user can hear the voice menus smoothly.
Abstract:
A unique identifier is assigned to a network node and is used to obtain an “asset model” corresponding to the node and to determine whether the node is a member of a particular category. An asset model is a set of information about a node (e.g., the node's role within the enterprise, software installed on the node, and known vulnerabilities/weaknesses of the node). An identifier lookup module determines a node's identifier based on characteristics of the node (such as IP address, host name, network zone, and/or MAC address), which are used as keys into lookup data structures. A category lookup module determines whether a particular node is a member of (i.e., within) a particular category using a transitive closure to model the categories (properties) that can be attached to an asset model. A transitive closure for a particular asset category is stored as a bitmap, similar to bitmap indexing.
Abstract:
This invention relates to methodologies that detect global changes in the methylation of human genomic DNA as well as changes in methylation in specific regions of the human genome. The methodologies have utility in the diagnosis, prognosis and monitoring of therapeutic treatment for any human disease. Further, the invention relates to methodologies that can detect global changes in the methylation of human genomic DNA that is a consequence of diet and/or dietary supplements. The invention also relates to identifying novel DNA methylation biomarkers that are associated with human disease.
Abstract:
The invention proposes a processing arrangement (to be used in a communication device, for example), wherein the processing arrangement comprises at least one data processing unit (1), and a communication unit (2) connected to the data processing unit (1), wherein the at least one data processing unit (1) is configured to perform data processing and the communication unit (2) is configured to provide a connection to the external, a packet transport control is used for the connection to the external, in which a plurality of addresses may be assigned to the communication unit (2), and the communication unit and the data processing unit comprise delivering means (13, 23) for delivering packets, which are to be delivered between the data processing unit (1) and the external, via an encapsulated connection (3) between the data processing unit and communication unit. The invention also proposes a corresponding communication method.
Abstract:
Disclosed is a method for treating the symptoms of an acute or chronic disorder mediated by the classical pathway of the complement cascade, comprising administering to a mammal in need of such treatment a therapeutically effective amount of a compound of Formula I or a solvate, hydrate or pharmaceutically acceptable salt thereof; wherein R1, R2, R3, R4 and R7 are defined in the specification, Z is SO or SO2, and Ar is an aromatic or heteroaromatic group as defined herein.
Abstract:
The present invention is directed to amorphous form of indiplon, to processes for preparing said amorphous form, to pharmaceutical compositions containing the same, and to method of treatment using the same. Additionally, the present invention also relates to the preparation of solid amorphous dispersion of indiplon and a carrier which includes PVP and solid PEG etc.
Abstract:
A technique for accessing a shared resource of a computerized system involves running a first portion of a first thread within the computerized system, the first portion (i) requesting a lock on the shared resource and (ii) directing the computerized system to make operations of a second thread visible in a correct order. The technique further involves making operations of the second thread visible in the correct order in response to the first portion of the first thread running within the computerized system, and running a second portion of the first thread within the computerized system to determine whether the first thread has obtained the lock on the shared resource. Such a technique alleviates the need for using a MEMBAR instruction in the second thread.