摘要:
A mesoporous alumina molecular sieve and a method of manufacturing a mesoporous alumina mesoporous alumina molecular sieve of the invention is produced without using traditionally used additives. Also, because the size and distribution of the pores can be controlled, the molecular sieve can be produced simply and economically, producing molecular sieve with high surface area and thermal stability. Further, a method of manufacturing an alumina nanotube by using a surfactant and a use of the alumina nanotube as a hydrogen storage material are provided.
摘要:
The present invention relates to a process for the preparation of 4-aminomethyl-3-alkoxyiminopyrrolidine methane-sulfonate, a key intermediate of quinolone antibiotics. According to the process of the present invention, the total number of steps has been shortened to 2-3 steps, the solid separation is not required, and the use of costly chemicals, particularly (BOC)2O (t-butoxycarbonyl anhydride), several organic solvents and reactants, is eliminated.
摘要翻译:本发明涉及制备喹诺酮抗生素关键中间体的4-氨基甲基-3-烷氧基亚氨基吡咯烷甲磺酸盐的方法。 根据本发明的方法,步骤总数已经缩短到2-3个步骤,不需要固体分离,并且使用昂贵的化学品,特别是(BOC)2 O (叔丁氧基羰基酐),几种有机溶剂和反应物。
摘要:
Disclosed is an environmentally benign and simplified method for preparing aromatic dicarboxylic acid. In the disclosed method, a mixed solvent composed of aromatic mono-carboxylic acid and water, instead of conventionally used low molecular weight carboxylic acid such as acetic acid, is used as a reaction solvent for an oxidation process; manganese and a small amount of transition metal element are used as catalysts; and carbon dioxide is used as a reaction stabilizer. Accordingly, it is possible to improve the yield and selectivity of the aromatic dicarboxylic acid.
摘要:
The present invention relates to a process for the preparation of 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate, a key intermediate of quinolone antibiotics. According to the process of the present invention, the total number of steps has been shortened to 2-3 steps, the solid separation is not required, and the use of costly chemicals, particularly (BOC)2O (t-butoxycarbonyl anhydride), several organic solvents and reactants, is eliminated.
摘要:
Provided are a system and method for determining whether to provide service and a content of the service based on ubiquitous-based context information. The method includes the steps of registering at least one context-aware service (CAS); determining whether sensors associated with the CAS are registered; when all the sensors are registered, checking all contexts associated with the CAS; upon receipt of a CAS request, receiving context information from the sensors and determining whether the context information satisfies the contexts; and providing the CAS if the context information satisfies at least one of the contexts. With the flexible engine determining whether to provide service corresponding to a current context even though all context information constituting the CAS is not collected, information is quickly provided upon receipt of a service request from a user.
摘要:
A method and device for local domain management are provided and include a local domain authority device. The local domain authority (LDA) device includes a location limited channel (LLC) interface for transmitting and receiving information of devices which are positioned within a limited location and a (LDA) module for authenticating a device which is selected as a member of a domain from the devices, transmitting device authentication information corresponding to the domain, to the authenticated device via the LLC interface, and registering the authenticated device as a member of the domain. The method and device provide an easy and secure means for domain management.
摘要:
A multi protocol adapter capable of implementing various communication modes is disclosed. The multi protocol adapter may include a plurality of communication ports to connect to a plurality of communication modules supporting different communication protocols, and a main controller to convert a signal received from one of a plurality of the communication modules and to output the converted signal to the other communication module. In this instance, each of a plurality of the communication modules is attachable and detachable, and may be connected to one of a plurality of the communication ports.
摘要:
An apparatus for reducing digital audio output noise includes: a signal processing unit configured to process digital audio data to output to a speaker; a switching unit configured to mute the speaker; and a control unit configured to monitor the signal processing unit to determine whether a current state is a mute state or not, and control the switching unit according to the determination result.
摘要:
An integrated remote control system includes a remote control device for selecting and controlling a plurality of digital devices, each including a bit pattern tag having location information and device information. The remote control device includes a display, a light emitting module for emitting light toward the digital devices, a sensor for recognizing the tags of the digital devices, and a controller for analyzing the tags recognized by the sensor to provide the display information of the digital devices on the display and then controlling a digital device selected from the displayed digital devices.
摘要:
A virtual mouse driving apparatus and method for processing a variety of gesture commands as equivalent mouse commands based on two-handed gesture information obtained by a video camera are provided. The virtual mouse driving method includes: keeping track of an input gesture input with the video camera; removing a background portion of the input gesture image and extracting a left-hand region and a right-hand region from the input gesture image whose background portion has been removed; recognizing a left-hand gesture and a right-hand gesture from the extracted left-hand region and the extracted right-hand region, respectively, and recognizing gesture commands corresponding to the recognition results; and executing the recognized gesture commands.