Abstract:
A method and system for encrypting data in a wireless communication system are provided. The system includes a first node for generating a first encryption key using a plurality of encryption key parameters when performing authentication with a second node, for changing a second parameter among the plurality of encryption key parameters to generate a second encryption key being identical to the first encryption key, if a first parameter among the plurality of encryption key parameters is changed during re-authentication between the first node and the second node, for generating the second encryption key using the changed first parameter and the changed second parameter, and for encrypting data to be transmitted to the second node using the second encryption key.
Abstract:
Disclosed are a molecular sieve catalyst and a preparation method thereof to produce light olefins from cracking naphtha catalytically in severe environments of high temperature and high moisture. In detail, the catalyst is prepared by spray-drying and calcining the mixed slurry, in which 0.01˜5.0 wt % of MnO2 and 1˜15 wt % of P2O5 are simultaneously imbedded in catalyst which consists of zeolite, clay and inorganic complex. According to the present invention, the method that manganese and phosphate are imbedded simultaneously in zeolite and inorganic complex is used to increases thermal-stability of obtained spherical catalyst, and increase olefin yield of cracking hydrocarbon such as naphtha by protecting acid-site of zeolite. To synthesize the required catalyst, the important procedures are mixing ratio and mixing sequence of Mn, P, zeolite, and inorganic complex.
Abstract translation:公开了一种分子筛催化剂及其制备方法,用于在严酷的高温高湿环境下催化裂解石脑油。 详细地,通过喷雾干燥和煅烧混合浆料制备催化剂,其中0.01〜5.0wt%的MnO 2和1〜15wt%的P 2 O 5同时嵌入由沸石,粘土和无机络合物组成的催化剂中。 根据本发明,使用锰和磷酸盐同时嵌入沸石和无机络合物的方法来提高所得球形催化剂的热稳定性,并通过保护沸石的酸性位点来提高裂解烃如石脑油的烯烃产率。 为了合成所需的催化剂,重要的步骤是Mn,P,沸石和无机络合物的混合比和混合顺序。
Abstract:
A cell balancing circuit includes a plurality of battery cells coupled in series, balancing switches, each balancing switch being coupled in parallel to a respective battery cell, balancing resistors, each balancing resistor being coupled in series to the respective battery cell, a balancing controller that individually controls the balancing switches such that the battery cells are discharged through the balancing resistors, and positive temperature coefficient (PTC) elements, each PTC element being positioned adjacent to a respective balancing resistor and electrically coupled to the respective balancing switch coupled in series to the respective balancing resistor
Abstract:
A method of processing IC units comprising the steps of: dicing said IC units from a substrate; delivering said IC units to a idle block; inspecting a face of said units as exposed during the dicing step using an inspection device whilst said units are on said idle block, then; engaging said units with a picker assembly; passing said units over a second inspection device to inspect an opposed face of said units.
Abstract:
A flat panel display (FPD) with a reduced time required to change images between frames by improving waveforms of a selection signal and a drive signal. The FPD includes an electrode, an electrophoretic device with charged particles arranged in response to a data signal, and a transistor device controlling transmission of the data signal. An image frame includes a drive section in which the data signal is transmitted to the electrophoretic device to arrange the charged particles and display a grayscale image, and the data signal has a first pulse with a first voltage magnitude and a second pulse with a second voltage magnitude. The frame also includes a shake section for removing an image generated in a previous frame, and the selection signal transmitted to the transistor device during the shake section has a constant predetermined voltage and switches the transistor device on.
Abstract:
A pixel circuit may include a pixel unit coupled to a crossing point of a data-line and a scan-line, the pixel unit receiving a first power source voltage and a second power source voltage that are DC power source voltages, an organic light emitting diode coupled to the pixel unit, and a light emitting control transistor coupled between the pixel unit and the organic light emitting diode. Here, the light emitting control transistor may periodically turn on and off in response to a light emitting control signal having a logic high level and a logic low level in a frame, and the light emitting control signal may be simultaneously provided to a plurality of light emitting control transistors in a display panel.
Abstract:
This invention relates to a method of preparing a multicomponent bismuth molybdate catalyst by changing the pH of a coprecipitation solution upon coprecipitation and a method of preparing 1,3-butadiene using the catalyst. The multicomponent bismuth molybdate catalyst, coprecipitated using a solution having an adjusted pH, the preparation method thereof, and the method of preparing 1,3-butadiene through oxidative dehydrogenation using a C4 mixture including n-butene and n-butane as a reactant are provided. The C4 raffinate, containing many impurities, is directly used as a reactant without an additional process for separating n-butane or extracting n-butene, thus obtaining 1,3-butadiene at high yield. The activity of the multicomponent bismuth molybdate catalyst can be simply increased through precise pH adjustment upon coprecipitation, which is not disclosed in the conventional techniques. This method can be applied to the increase in the activity of multicomponent bismuth molybdate catalysts reported in the art.
Abstract:
A method and apparatus for reorienting displayed data responsive to resizing a window in which the data is displayed is disclosed. Data is displayed in a window in a first orientation. Responsive to receiving an input modifying the size of the window, it is determined whether to reorient the data displayed in the window based on the modified size of the window. For example, if the modified size of the window exceeds a threshold, the data is reoriented. Responsive to determining to reorient the data, the window is resized to the modified size and the data is displayed in a second orientation. In one embodiment the first orientation is orthogonal to the second orientation.
Abstract:
Provided are a light emitting device, a light emitting device package, and a light unit. The light emitting device includes: a light emitting structure including a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, and a second conductive semiconductor layer on the active layer; a first electrode electrically connected to the first conductive semiconductor layer; and a second electrode electrically connected to the second conductive semiconductor layer. A surface of the light emitting structure has a plurality of first sides and second sides having curvatures in respectively different directions, which are alternately disposed.
Abstract:
The present invention provides Lactobacillus plantarum CJLP55 KCTC 11401BP, a composition for treating bowel disease containing the lactobacillus, and a composition for immunological enhancement containing the lactobacillus.