摘要:
The present invention relates to a high performance water gas shift catalyst and a method of preparing the same, more particularly to a high performance water gas shift catalyst comprising active components such as copper (Cu), nickel (Ni) and platinum (Pt) and a ceria (CeO2) support, which has better catalytic activity and thermal cycling durability with minimum platinum supporting amount of 1 wt % or less compared with the conventional Pt/CeO2 catalyst and LTS catalyst, and a method of preparing the same.
摘要翻译:本发明涉及一种高性能水煤气变换催化剂及其制备方法,更具体地涉及包含有效成分如铜(Cu),镍(Ni)和铂(Pt)的高性能水煤气变换催化剂和 具有较好的催化活性和热循环耐久性的二氧化铈(CeO 2 2)载体,与常规的Pt / CeO 2 2相比,铂载体的最小铂负载量为1重量%以下。 催化剂和LTS催化剂及其制备方法。
摘要:
A PSRAM features a mode register set (MRS) for setting a mode register at a combined synchronous and asynchronous mode. The PSRAM having a combined synchronous and asynchronous mode register set includes a MRS, a mode register control unit, a plurality of control signal buffers, an address buffer, a clock buffer, and a synchronous and asynchronous detecting unit. Here, the plurality of control signal buffers, the address buffer and the clock buffers are controlled by a chip selecting signal at an asynchronous mode, and are operated synchronously with respect to an internal clock outputted from the clock buffer regardless of the chip selecting signal at a synchronous mode.
摘要:
A semiconductor chip packaging method (34) includes printing an adhesive (46) on a support surface (42), typically a surface of a semiconductor substrate (44), to create individual adhesive areas (40). Semiconductor chips (24) are individually placed on the individual adhesive areas thereby securing the semiconductor chips to the support surface to create first chip subassemblies (55). The semiconductor chip and the semiconductor substrate are electrically connected to create second chip subassemblies (62). At least a portion of each of at least some of the second chip subassemblies is encapsulated to create semiconductor chip packages (64). The adhesive at the individual adhesive areas is preferably a B-staged adhesive so that solvent is removed from the adhesive before the individually placing step.
摘要:
A system for and a method of providing an integrated communications and broadcasting service are provided. This system includes a transmitter and a receiver. The transmitter RF-multiplexes a CATV broadcasting signal and a satellite broadcasting signal, converts the RF-multiplexed broadcasting signal into an RF-multiplexed broadcasting optical signal having a predetermined wavelength, multiplexes the broadcasting optical signal with an Internet data signal, and transmits an integrated communications and broadcasting optical signal via a predetermined optical fiber. The receiver receives the integrated communications and broadcasting optical signal from the transmitter, demultiplexes the received signal according to a wavelength band to separate the received signal into the broadcasting optical signal and the Internet data signal, separates the broadcasting optical signal into the CATV broadcasting signal and the satellite broadcasting signal using the difference between wavelength bands of the CATV broadcasting signal and the satellite broadcasting signal, and transports the separated signals to appropriate terminals.
摘要:
Provided is a voltage-controlled oscillator (VCO) using a current feedback network for use in a wireless communication terminal. The voltage-controlled oscillator has high input impedance and low output impedance, so that a degree of isolation from the external load is excellent, thereby preventing degradation of the Q-factor by the load in overall oscillation circuit. In the voltage-controlled oscillator of the present invention, an LC resonator is provided to generate positive feedback, and negative resistance may be obtained at a wider frequency range by tuning a varactor of the LC resonator. And a boosting inductor is inserted into the positive feedback loop to have a greater negative resistance, therefore it is possible to prevent a problem in which the oscillation does not occur due to the parasitic resistance components generated during circuit fabrication.
摘要:
A method for forming dual gate electrodes using a damascene gate process is disclosed. A disclosed method comprises: growing a first gate oxide layer on a semiconductor substrate; performing a thermal treatment for a first gate oxide layer; removing a predetermined part of the first gate oxide layer until the top surface of the semiconductor substrate is exposed; growing a second gate oxide layer as a thin oxide layer on the exposed semiconductor substrate, thereby making the first gate oxide layer as a thick oxide layer; depositing polysilicon on the entire surface of the semiconductor substrate and forming dummy gates through a photolithography and an etching processes; forming sidewall spacers on the lateral faces of the dummy gates; forming source and drain regions in the substrate under both sides of the dummy gates; removing the dummy gates and the second gate oxide layer; forming an insulating layer where the second gate oxide layer is removed; performing a thermal treatment for the insulating layer; filling polysilicon for gate electrodes where the dummy gates were removed; and planarizing the resulting structure until the gate electrodes are exposed.
摘要:
The present invention relates to a composition containing sHSPs for prevention of protein degradation and a composition for two-dimensional (2-D) gel electrophoresis. Furthermore, the present invention relates to the improved method of 2-D gel electrophoresis, which is characterized by using sHSPs. According to the present invention, decreasing of protein spots was prevented in the 2-D gel electrophoresis, thereby obtaining 2-D gel with much more protein spots.
摘要:
A method and apparatus for detecting a defective disk for a hard disk drive. The method includes placing a disk into a tester so that a first side of the disk is adjacent to a first head of the tester and a second side of the disk is adjacent to a second head. First data is read from the first side of the disk, and second data is read from the second side of the disk. The disk is then flipped so that the second side is adjacent to the first head and the first side is adjacent to the second head. Third data is read from the first side. Fourth data is read from the second side. A first area between a curve generated from the first data and a curve generated from the third data is calculated. Likewise, a second area is calculated between a curve generated from the second data and a curve generated from the fourth data. An average of the first and second areas is then calculated and used to detect a defective disk.
摘要:
Provided is a microwave tunable device having a coplanar waveguide structure, comprising a substrate, a ferroelectric/paraelectric thin film, a first transmission line, and second transmission lines, wherein a transmission line portion is formed with a constant width and an input/output portion is formed with a width larger than that of the transmission line portion in the first transmission line, and a transmission line portion is formed with a constant width and an input/output portion is formed with a narrower width than that of the transmission line portion in the second transmission line, whereby it is possible to minimize impedance difference with a connection line, a reflection loss, and an insertion loss, by controlling the width of the first transmission line and gap between the first and the second transmission lines, in the input/output portion.
摘要:
A backlight assembly of a liquid crystal display is provided. The backlight assembly of a liquid crystal display include a lamp for generating light; a light guide plate disposed at a side of the lamp to guide the light; a diffusion sheet disposed on the light guide plate to scatter the light that is incident from the light guide plate, thereby making brightness distribution of light uniform; and a prism sheet including a body part into which a light diffused from the diffusion sheet is introduced and a plurality of protrusion parts arranged in a specific direction, in which each protrusion part is shaped in a scalene triangle prism form and has both base angles different from each other.