摘要:
Provided is a planar focusing grating coupler, comprising: a light waveguide including a cladding layer and a core layer formed on a substrate and maintaining incident laser light in a single mode; and a focusing grating coupler formed to have a predetermined grating pitch at a certain area over the core layer, wherein the light using to the light waveguide forms a focal point with the grating layer in the direction perpendicular to the focusing grating coupler, whereby an ultra small pickup head for a mobile optical disk can be used.
摘要:
The invention relates to a process for making a modified thermoplastic polyester by reacting a thermoplastic polyester with a nitrogen-containing compound, wherein the thermoplastic polyester is first contacted in the solid state with an inert gas atmosphere containing at least one amino-compound of formula H2N—R—(X)n, wherein n is an integer≧0, R=a linear, branched or cyclo-aliphatic or aromatic residue comprising 1–24 C-atoms and optionally containing hetero atoms, X═—NH2 or another functional group reactive with the polyester, at a temperature T(a) between room temperature and the melting point Tm of the polyester, during at least 1 s; and then heated to a temperature T(b) between T(a) and Tm, during up to 10 hours; and thereafter solid state polymerized at a temperature T(c) between (Tm−50) and Tm, during up to 100 hours, where T(a)
摘要:
A surgical instrument comprising an instrument handle which is linked to a proximal end portion of a tube shaft and at the distal end portion of which an instrument head rotatably supporting an effector is linked so as to be inclinable. The effector includes at least one pivotable engaging element which is operable via an effector operating gear train in cooperation with the instrument handle. The effector operating gear train, in turn, has a pushing rod which is shiftably supported in the tube shaft and which, in the linking area of the instrument head at the tube shaft, abuts a pushing pin shiftably supported in the instrument head, the pushing pin being operatively connected to the engaging element.
摘要:
A cat litter box with a pivotable container housed on a frame, the tray floor of which forms a collection tray for cat litter and the like. A cleaning mechanism is arranged standing in the container and reaching to the floor of the tray, with which cleaning mechanism, when the container is pivoted in one direction to clean it, waste matter, particularly feces, can be separated from the cat litter. The container possesses a storage chamber for the separated waste matter which can be moved with the container, which chamber is formed by a bag, the entrance of which chamber is arranged above the cleaning mechanism in the position of use. The tray floor consists in accordance with the invention of a half shell which extends over a span area of less than 250° which with a first part shell section forms the floor of an essentially open collection tray and with the other part shell section forms the rear wall of an interim storage tray for litter, whereby the cleaning mechanism is arranged at the transition segment between the part shell sections, and the storage chamber is arranged in the position of use on the side of the cleaning mechanism facing the interim storage tray and whereby the pivoting of the container from the position of use is restricted to a pivot movement of 120–180° in the one direction.
摘要:
The present invention relates to a microstrip band pass filter and, more specifically, to a microstrip band pass filter using end-coupled stepped impedance resonators that can be used in a millimeter wave band, wherein the microstrip band pass filter comprises: a dielectric substrate; a conductor plate located on a lower surface of the dielectric substrate; and an input terminal, a plurality of SIRs and an output terminal located on an upper surface of the dielectric substrate in series, wherein the input terminal, the plurality of SIRs and the outputs terminal are conductors and end-coupled through gaps, whereby the microstrip band pass filter has a good attenuation characteristic and a narrowband characteristic, and is insensitive to the manufacturing error, and a fine frequency transition can be made without distortion just with width adjustment of the low impedance transmission line of the SIR.
摘要:
A flash memory device and method of manufacturing the same. The flash memory device includes a semiconductor substrate in which a first region where a cell region is formed, a second region where a peripheral region is formed, and a third region formed in the peripheral region at the boundary portion of the cell region and the peripheral region. The device also includes a triple well region formed in the first region and a predetermined region of the third region, an isolation film formed in the first region and having a first depth, an isolation film formed in the second region and having a second depth, which is deeper than the first depth of the isolation film, and a gate oxide film for low voltage and a floating gate, which are stacked on a predetermined region of the first region, a gate oxide film and a gate, which are stacked on a predetermined region of the second region. Additionally, the device includes a dummy flash memory cell in which the floating gate formed in the first region and the gate formed in the second region are separated from each other, and a gate oxide film for high voltage and a gate electrode are stacked on a predetermined region of the third region.
摘要:
The present invention is directed to an improved multiplex PCR method for obtaining at least two PCR products from one PCR solution. In the multiplex PCR method for having at least two DNA amplified products from a sample positioned in a PCR equipment, the object of the present invention is to provide a novel multiplex PCR method characterized in that a primer annealing temperature and an extension time be changed per cycle with constant periods. When a multiplex PCR is performed in accordance with the present invention, limitations in determining PCR conditions due to a various sizes of PCR products or dimers caused by primers can be eliminated, and time and efforts required for determining the PCR conditions to various samples can also be reduced. Further, not only refined DNAs like cDNA, genomic DNA, vector, etc, but blood can be directly used as a multiplex PCR sample, and PCR amplification reaction can be performed even with a sample having the smallest amounts.
摘要:
A wavelength tunable filter capable of being driven such that reflecting mirrors move more distant as well as closer by using the principle that a direction of the electromagnetic forces changes depending on the direction of the current flowing perpendicular to the external magnetic field. According to the wavelength tunable filter of the present invention, when it is necessary to have the wavelength tuning range and mechanical structure similar to the conventional wavelength tunable filter driven in only one direction, it is possible to lower the maximum force needed to drive the filter to a half, and reduce a probability that a pull-in phenomenon occurs. On the other hand, it is possible to reduce a wavelength change time of the element by increasing a resonant frequency when the same wavelength tuning ranges are implemented by using the same maximum driving forces.
摘要:
Provided are an apparatus and a method for recognizing positive/negative intention using a fine change of gamma wave of a brainwave comprising the steps of detecting the brainwave from a head of a user, receiving and amplifying the brainwave detected from the step of detecting the brainwave, converting the amplified analog brainwave to one of a digital type, and recognizing the positive/negative intention of the user by detecting the fine change of the gamma wave of the brainwave in the digital type, which is transmitted from the A/D converting portion, whereby it is possible to implement an application of a real time interface and minimizes inconvenience for the user, and it requires no separate user practice.