摘要:
A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section. The bidirectional event transmission sensor network has a structure of a super frame that includes at least one standby slot (SS) including the uplink section and the
摘要:
An antenna device of a mobile terminal that can secure radiation performance is provided. The antenna device having a battery cover composed of a metal material includes a radiation unit for transmitting and receiving a signal, a feeding unit formed at an end portion of a first side of the radiation unit for electrically connecting the radiation unit to a Printed Circuit Board (PCB), and a ground part disposed a predetermined distance from the feeding unit and formed at a second side of the radiation unit. When the battery cover is fastened to the mobile terminal, the ground part contacts a first side of the battery cover.
摘要:
Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in preparation costs. The nanophosphor prepared by the disclosed method exhibits high luminescence efficiency.
摘要:
A circuit for sensing an open-circuit lamp is provided. The circuit includes a reference voltage output unit, a voltage sensor, and a comparator. The reference voltage output unit provides a reference voltage. The voltage sensor detects a sensed voltage corresponding to a status of a lamp. The status of the lamp includes an open-circuit status and a closed-circuit status. The comparator compares the sensed voltage with the reference voltage and outputs a result indicating the status of the lamp.
摘要:
An insulated conductive particle for an anisotropic conductive film is disclosed. One embodiment of the particle includes a conductive particle and insulating fixative particles discontinuously fixed on the surface of the conductive particle. The insulating particles provides insulation with other adjacent insulated conductive particles, while the insulated conductive particle is electrically connected between electrodes with the insulating fixative particles being deviated from its position. The instant disclosure also provides a method for manufacturing the insulated conductive particle, an anisotropic conductive adhesive film containing the insulated conductive particles, and an electrically connected structure using the film.
摘要:
Provided is a siloxane dispersant having a structure including a head part having an affinity for nanoparticles and a tail part having an affinity for a polydimethylsiloxane (PDMS) resin, and a nanoparticle paste composition comprising the same. The dispersant significantly improves dispersion efficiency of a polydimethylsiloxane resin system which is used in preparation of high-output light sources such as UV LEDs and the like.
摘要:
The present invention relates to an AC light emitting diode. An object of the present invention is to provide an AC light emitting diode wherein various designs for enhancement of the intensity of light, prevention of flickering of light or the like become possible, while coming out of a unified method of always using only one metal wire with respect to one electrode when electrodes of adjacent light emitting cells are connected through metal wires. To this end, the present invention provides an AC light emitting diode comprising a substrate; bonding pads positioned on the substrate; a plurality of light emitting cells arranged in a matrix form on the substrate; and a wiring means electrically connecting the bonding pads and the plurality of light emitting cells, wherein the wiring means includes a plurality of metal wires connecting an electrode of one of the light emitting cells with electrodes of other electrodes adjacent to the one of the light emitting cells.
摘要:
The present invention relates to a method for increasing active ingredient of Ginseng by Ultra-high pressure. More precisely the invention relates to a method for increasing high active ingredients like ginsenosides comprising treating Ginseng with ultra-high pressure.
摘要:
The present invention relates to a novel and improved process for preparing 4-acyloxy-2-azetidinone derivatives having the following formula (I) which are useful as an intermediate for synthesis of penem or carbapenem compounds: ##STR1## in which R.sub.1 represents a hydroxy-protecting group; and R.sub.3 represents an acyl group, which comprises reacting an azetidinone derivative having the following formula (II): ##STR2## wherein R.sub.1 is defined as above and R.sub.2 represents an alkyl group or an aryl group, with a N-haloacylimide in the presence of an organic carboxylic acid or a salt of an organic carboxylic acid.The present invention uses the organic compound, N-haloacylimide, as the reactant rather than the heavy metal reactant used in the prior art, and thus provides an economical advantage and does not cause any problem related to safety and waste disposal after the reaction.
摘要翻译:本发明涉及一种制备具有下式(I)的4-酰氧基-2-氮杂环丁酮衍生物的新颖和改进的方法,其可用作青霉烯或碳青霉烯化合物的合成中间体:其中R1 表示羟基保护基; R 3表示酰基,其包括使具有下式(II)的氮杂环丁酮衍生物:其中R 1如上所定义,R 2表示烷基或芳基,与N-卤代酰亚胺在 存在有机羧酸或有机羧酸的盐。 本发明使用有机化合物N-卤代酰亚胺作为反应物,而不是现有技术中使用的重金属反应物,因此提供了经济的优点,并且不会引起任何与反应后的安全性和废物处理有关的问题。
摘要:
The particular strain of Klebsiella oxytoca No. 19-1 has been isolated from soil which produces a cyclomaltoglucanotransferase enzyme capable of converting starch to .alpha.-cyclodextrin in very high proportion, nearly close to 100 percent, rather than another types of cyclodextrins.