Abstract: This disclosure provides a second harmonic generator and an optical parametric oscillator, the second harmonic generator and the optical parametric oscillator comprise one or more nonlinear optical frequency conversion crystal and a pump laser source, the nonlinear optical frequency conversion crystal is a monoclinic Ga2S3 crystal, the space group of the monoclinic Ga2S3 crystal is Cc, and the unit cell parameters are a=11.1 ?, b=6.4 ?, c=7.0 ?, ?=90°, ?=121°, ?=90°, and Z=4.

Abstract: The present invention provides a method for manufacturing a semiconductor structure, which comprises following steps: providing a substrate, which comprises upwards in order a base layer, a buried isolation layer, a buried ground layer, an ultra-thin insulating buried layer and a surface active layer; implementing ion implantation doping to the buried ground layer; forming a gate stack, sidewall spacers and source/drain regions on the substrate; forming a mask layer on the substrate that covers the gate stack and the source/drain regions, and etching the mask layer to expose the source region; etching the source region and the ultra-thin insulating buried layer under the source region to form an opening that exposes the buried ground layer; filling the opening through epitaxial process to form a contact plug for the buried ground layer. Accordingly, the present invention further provides a semiconductor structure.

Abstract: A method and an apparatus for eliminating residual charges in a flat-panel x-ray detector are provided. The apparatus includes a flat-panel x-ray detector, a first bias voltage source and a second bias voltage source. The flat-panel x-ray detector includes a photoconductor layer and an electrode layer disposed on the photoconductor layer. The electrode layer converts x-rays to positive and negative charges. The first bias voltage source generates a first bias voltage applied to the photoconductor layer to form a first electric field. The second bias voltage source generates a second bias voltage applied to the photoconductor layer to form a second electric field. The first and second bias voltages are polar opposites. The positive and negative charges respectively at two opposite surfaces of the photoconductor layer in the first electric field are driven from one surface to the other one to be neutralized in the second electric field.

Abstract: Provided is a beta-type titanium alloy having a low elastic modulus and a high strength. The titanium alloy includes 6 to 13 wt % of Mo, 0.1 to 3.9 wt % of Fe, a remaining amount of Ti, and inevitable impurity, and selectively includes 0.1 to 3.9 wt % of Al. The titanium alloy according to the present invention has a high tensile strength of greater than or equal to 1,300 MPa and a low elastic modulus of less than or equal to 95 GPa at low cost.

Abstract: The present invention relates to a metal silicoaluminophosphate molecular sieve MeAPSO with a RHO framework structure and a preparation method thereof. The metal silicoaluminophosphate molecular sieve is characterized in that: the metal atoms are at least one of vanadium, copper, molybdenum, zirconium, cobalt, manganese, magnesium, iron, nickel and zinc. The chemical composition of said metal silicoaluminophosphate molecular sieve in anhydrous state is expressed as: mR.nMe.(SixAlyPz)O2, where R represents template existed in molecular sieve micropores, m is the molar number of said template per one molar of (SixAlyPz)O2, m=0.1˜0.5; Me represents metal atom entering into said metal silicoaluminophosphate molecular sieve framework, n is the molar number of Me per one molar of (SixAlyPz)O2, n=0.001˜0.30. Said metal silicoaluminophosphate molecular sieve has ion exchange performance and adsorption performance.

Abstract: A method for vision machine inspection comprises providing depth information of a target acquired by an image capturing system, determining real-time three-dimensional information of a target object in a predetermined inspecting area based on depth information of at least one real-time image of the target. The method further comprises projecting color pixel information of a real-time color image of the target object to a three-dimensional virtual model based on the real-time three-dimensional information. The real-time color image may be acquired by a color camera system. The method further comprises generating a color three-dimensional virtual model. The color three-dimensional virtual model may comprise the color pixel information.

Abstract: Provided is a maximum power tracking device. The device includes: a battery outputting a first power; a switching unit changing the first power into a second power in response to a switching control signal; and a pulse modulation generation unit adjusting a pulse width of the switching control signal on the basis of the first power and adjusting a frequency of the switching control signal on the basis of the first power and the second power.

Abstract: A travel plan apparatus, method, and a storage media are provided. The travel plan method includes: providing tourist attractions, travel days and travel configurations; determining at least one candidate hotel according to hotel configuration of the travel configurations; determining groups according to at least one candidate hotel and the travel days; distributing each one of the tourist attractions to a corresponsive group of the groups by using a relation-clustering method; when a quantity of first groups including at least one tourist attraction of the groups is larger than a quantity of the travel days, distributing tourist attractions of a second group including the tourist attractions with the shortest traveling time to other groups of the first groups by using the relation-clustering method.

Abstract: Provided is an apparatus for detecting a speech/non-speech section. The apparatus includes an acquisition unit which obtains inter-channel relation information of a stereo audio signal, a classification unit which classifies each element of the stereo audio signal into a center channel element and a surround element on the basis of the inter-channel relation information, a calculation unit which calculates an energy ratio value between a center channel signal composed of center channel elements and a surround channel signal composed of surround elements, for each frame, and an energy ratio value between the stereo audio signal and a mono signal generated on the basis of the stereo audio signal, and a judgment unit which determines a speech section and a non-speech section from the stereo audio signal by comparing the energy ratio values.

Abstract: Disclosed is a method of pre-treating molybdenite containing copper. The method includes mixing molybdenite containing copper with sulfuric acid, performing a sulfation reaction through a heating process after the mixing process is performed, performing a water leaching process by putting and stirring water after the sulfation reaction is performed, separating a cake from liquid after the water leaching process is performed, and drying the separated cake.

Abstract: An authentication method including: transmitting, by a first terminal, a security cookie to a server and making an authentication request; transmitting, by the server, session information and the security cookie to a second terminal in response to the authentication request; verifying, by the second terminal, whether the security cookie has been encoded by a session key pre-stored in the second terminal; and performing, by the second terminal and the server, mutual authentication in the case in which the security cookie is encoded by the session key pre-stored in the second terminal is disclosed.

Abstract: The present invention is related to the synthesis of a nano-hybrid catalyst made of carbon nanotubes and metal ferrite materials for the removal of NOx compounds, which are emitted from stationary sources, through an ammonia selective catalytic reduction process. Weight ratios of carbon nanotube (x) to metal ferrite (y) is preferably about (x/y) 0.1 to 10. The present invention is also directed to the synthesis of a nano-hybrid catalyst to improve the efficiency of the conventional NOx reduction process at lower reaction temperatures. By use of the preferred nano-hybrid catalyst, it is possible to locate a selective catalytic reduction (SCR) unit capable of operating at lower temperatures, e.g., below 260° C., and from about 50° C. to about 250° C., after the desulfurizer and the particle removal equipment. With the exhaust gas cleaner, the lifetime of the catalyst can be increased. This nano-hybrid catalyst provides higher NOx removal efficiencies at low temperatures, typically from about 50° C.

Abstract: A bionic fixing apparatus is provided. The bionic fixing apparatus includes a flexible portion having at least one trench. The trench is disposed on the surface of the flexible portion and has a first end and a second end. An interval is disposed between the first end and the second end. The trench is disposed for spreading the stress applied on the bionic fixing apparatus and preventing stress concentration and stress shielding.

Abstract: A server and a share link management method are provided. The server generates a first share link in response to a request, and generates a first workflow according to the first share link. The server transmits the first share link to at least one electronic device via a network according to the first workflow. The server monitors at least one first status which is generated by the at least one electronic device in response to the first share link, and adjusts the first workflow according to the at least one first status. The share link management method is applied to the server to implement the aforesaid operations.

Abstract: An antenna system capable of achieving simultaneous transmit and receive (STAR.) operation over a wide bandwidth includes a ring array of TEM horn elements and a centrally located monocone or bicone antenna. The TEM horn elements each include a capacitive feed. The elements of the ring array are excited using a phasing scheme that results in signal cancellation, at the location of the central element. The ring array may serve as either the transmit antenna or the receive antenna.

Abstract: A context managing apparatus and method thereof. The context managing apparatus may include a communicator to acquire context information from each broadcast receiving terminal used by at least one user, and a controller to manage the acquired context information as information for providing a receive service for a predetermined broadcast receiving terminal.

Abstract: In a method for controlling channel-switching, a current channel is displayed through a display unit. A channel-switching correlation table is looked up to obtain at least one candidate channel, which is predicted to be watched after the current channel. The current channel is switched to the at least one candidate channel when a channel-switching signal is received, such that the display unit displays the at least one candidate channel. The present invention also discloses a device for controlling channel-switching and a non-transitory computer-readable storage medium for storing the method for controlling channel-switching.

Abstract: An apparatus and a method for an attack source traceback capable of tracing back an attacker, that is, an attack source present behind a command and control (C&C) server in a cyber target attack having non-connectivity over a transmission control protocol (TCP) connection are disclosed. The apparatus for the attack source traceback includes: a server information extracting unit detecting an attack for a system, which is generated via a server to thereby extract information on the server; a traceback agent installing unit installing a traceback agent in the server based on the information on the server; and a traceback unit finding an attack source for the system by analyzing network information of the server obtained by the traceback agent.

Abstract: Borehole electromagnetic exploration or tomography (EM tomography). An induction type broadband 3-component borehole magnetic measuring sensor can accurately and precisely measure a broadband magnetic field about x, y and z axes using a three-dimensional (3D) model within a borehole by monitoring natural variations in the earth's magnetic field or based on EM tomography using the borehole. The measuring sensor is applicable to energy resource fields such as petroleum and coal, mineral resources fields and civil engineering and environmental fields.

Abstract: Provided is a method of fabricating an electronic circuit. The method includes preparing a substrate, forming a polymer film on the substrate, patterning the polymer film to form a polymer pattern, and forming an electronic device on the polymer pattern.