Abstract:
A tilting device is disclosed. The tilting device may include: a base; a guide, of which one side is hinge-coupled to the base; a jointed link, in which a joint is formed, and of which either end is hinge-coupled respectively to the base and to the other side of the guide, to thereby allow the guide to tilt; a leadscrew engaging the joint; and a driving unit configured to drive the leadscrew. With this configuration, the tilting device may be implemented in a compact structure using a smaller driving unit.
Abstract:
Disclosed herein is a method for the preparation of low-molecular weight beta-glucan by irradiation. The low-molecular weight beta-glucan prepared by irradiation shows a random distribution of all beta-glucan structures, low viscosity and high water solubility, and acts as an excellent antioxidant and to activate immune cells, finding useful application in many fields including the food, medical and cosmetics industries.
Abstract:
Disclosed is a method for producing demineralized bone matrix with improvement of releasing bone morphogenetic protein by irradiating the demineralized bone matrix, the demineralized bone matrix produced by the producing method, a method for extracting bone morphogenetic protein using the demineralized bone matrix, and the bone morphogenetic protein extracted by the extracting method. The demineralized bone matrix produced according to the present invention and the bone morphogenetic protein extracted by using the demineralized bone matrix can be advantageously used in manufacturing bone restorative implants, bone growth accelerating compositions, and/or health aids or supplementary food products.
Abstract:
A data bus system, capable of distributing devices including first and second data buses capable of transmitting data among a plurality of devices; a register block that stores information on a first bus request signal and a first bus grant signal; a global arbiter that receives the first bus request signal from the register block to output a second bus request signal and receives a second bus grant signal from the register block to output the first bus grant signal. A bilateral bridge that acts as a data transmission path between the first data bus and the second data bus; and a local arbiter exists in each first and second data bus, and receives the second bus request signal from the global arbiter to output the second bus grant signal is disclosed.
Abstract:
The present invention relates to a method of embodying all-optical XOR logic gate by using semiconductor optical amplifier, and more particularly, to a technique to embody all-optical XOR logic gate utilizing the cross-gain modulation (XGM) characteristic of semiconductor optical amplifiers controllable with input currents, illumination signal, and pumping signal.The method of all-optical XOR logic element in accordance with the present invention is characterized to obtain operational characteristic of the all-optical XOR logic element by inputting pump-signal and illumination signal concurrently into two semiconductor optical amplifiers and then summing the two output signals having XGM characteristic arising from gain saturation and wavelength conversion of the semiconductor optical amplifiers.
Abstract:
A MOS transistor having a recessed gate electrode and a fabrication method thereof are provided. The MOS transistor includes an isolation layer formed at a predetermined region of a semiconductor substrate to define an active region and double trench regions formed in the active region. The double trench region is composed of an upper trench region crossing the active region and a lower trench region located under the upper trench region. Thus, the active region is divided into two sub-active regions. Sidewalls of the upper trench region are covered with a spacer, which is used as an etching mask to form the lower trench region in the semiconductor substrate of the upper trench region. The upper and lower trench regions are then filled with a gate electrode. Also, high concentration source/drain regions are formed at the top surfaces of the sub-active regions respectively. Therefore, an effective channel length of the MOS transistor is determined according to the dimension of the lower trench region.
Abstract:
A semiconductor magneto-optical integrated optical isolator is realized with a Mach-Zehnder integrated optical isolator in which a cladding and a guiding layer of light waveguide are composed of magnetic material. Here, it uses nonreciprocal phase shift created when light propagation direction is changed. The fundamental element deriving this nonreciprocal phase shift is the Faraday rotation of magnetic material. Therefore, it is essential to have large Faraday rotation in order to fabricate a short length integrated optical isolator. However, since magnetic material of bulk state does not have large Faraday rotation, there need the length of several mm units for fabricating an isolator. The invention is to realize an integrated optical isolator using magneto-optical crystal in which magneto-optical material and dielectric substance have periodic structure. By the above reasons, magneto-optical crystal becomes to have bigger Faraday rotation than that of bulk state magnetic materials; thereby nonreciprocal phase shift becomes large and a short length integrated optical isolator can be fabricated. Thus, in order to reduce the device length of a Mach-Zehnder optical isolator, magneto-optical crystal having large Faraday rotation is used.
Abstract:
The present invention relates to an implementation method of all-optical half adder by using semiconductor optical amplifier(SOA)-based devices and the apparatus thereof. In more detail, it relates to an implementation method of all-optical half adder comprising an all-optical XOR gate and an all-optical AND gate, implemented by using SOA-based devices, and an apparatus thereof.
Abstract:
The present invention relates to bicyclic himbacine derivatives of the formula or a pharmaceutically acceptable salt thereof wherein: R1 is halo; —CN; alkyl; cycloalkyl; alkoxy; phenyl, which is optionally substituted one or twice independently by alkyl, halo, or —CN; or a thiophene ring, which is optionally substituted once or twice independently by alkyl. The compounds of the invention are effective inhibitors of the PAR-1 receptor. The inventive compounds may be used for the treatment or prophylaxis of disease states such as ASC, secondary prevention of myocardial infarction or stroke, or PAD.
Abstract:
A rebound stopper of a strut assembly for a suspension in a vehicle, may include a steel plate combined with a strut and being fitted over an upper end of the strut which has passed into a car body, a rubber plate fitted around an outer circumferential edge of the steel plate, and a mass damper combined with the rubber plate and functioning as a damper by resiliently moving relative to the rubber plate during a rebounding motion of the strut assembly.