Abstract: A gas injector and cover plate assembly includes a cover plate, a gas injector and a ceiling. The cover plate includes cooling fluid channels. The gas injector is configured to be located on the cover plate, and includes a gas distributor, a fluid-cooling gas transmitter, gas spraying plates and a conducting cone. The gas distributor distributes gases and a gas transmitter cooling fluid. The gas distributor includes a gas conduit for introducing a first gas. The fluid-cooling gas transmitter connects the gas distributor to introduce the gas transmitter cooling fluid to form cooling fluid walls and the first gas and the gases. The gas spraying plates and the conducting cone are located beneath the fluid-cooling gas transmitter.

Abstract: A magnetic device includes a T-shaped magnetic core, a wire coil and a magnetic body. The T-shaped magnetic core includes a base and a pillar, and is made of an annealed soft magnetic metal material, a core loss PCL (mW/cm3) of the T-shaped magnetic core satisfying: 0.64×f0.95×Bm2.20?PCL?7.26×f1.41×Bm1.08, where f (kHz) represents a frequency of a magnetic field applied to the T-shaped magnetic core, and Bm (kGauss) represents the operating magnetic flux density of the magnetic field at the frequency. The magnetic body fully covers the pillar, any part of the base that is located above the bottom surface of the base, and any part of the wire coil that is located directly above the top surface of the base.

Abstract: A magnetic device includes a T-shaped magnetic core, a wire coil and a magnetic body. The T-shaped magnetic core includes a base and a pillar, and is made of an annealed soft magnetic metal material, a core loss PCL (mW/cm3) of the T-shaped magnetic core satisfying: 0.64×f0.95×Bm2.20?PCL?7.26×f1.41×Bm1.08, where f (kHz) represents a frequency of a magnetic field applied to the T-shaped magnetic core, and Bm (kGauss) represents the operating magnetic flux density of the magnetic field at the frequency. The magnetic body fully covers the pillar, any part of the base that is located above the bottom surface of the base, and any part of the wire coil that is located directly above the top surface of the base.

Abstract: The disclosure discloses a computing device including a connection module, a processing unit and a logic expansion unit, and a power supply method of a connection module. The connection module includes a detection unit and a power switch. The detection unit is configured to detect whether the connection module is connected with an external peripheral device, and to generate a detection signal. The power switch is configured to receive a power switching signal and to provide a rated voltage to the connection module according to the power switching signal. The processing unit and the logic expansion unit are coupled to each other. When the computing device is at a normal mode, the processing unit is configured to provide the power switching signal, acquires a connection status between the connection module and the external peripheral device, and to control the logic expansion unit to record the connection status.

Abstract: An electronic device including a core, at least a wire and a magnetic material is provided. The core includes a pillar, a top board and a bottom board. The pillar is disposed between the top board and the bottom board. An area of the top board is smaller than an area of the bottom board. A winding space is formed among the top board, the bottom board and the pillar. The wire is winded around the pillar and located in the winding space. The magnetic material fills the winding space to encapsulate the wire. The magnetic material includes a resin and a metallic powder, wherein an average particle diameter of the magnetic powder is smaller than 20 ?m.

Abstract: An inductor includes a first core, a conducting wire, a second core and a first lead frame. There is an accommodating space formed on a first side of the first core and there is a recess portion formed on a second side of the first core, wherein the first side is opposite to the second side. The first core has a first height. The conducting wire is disposed in the accommodating space. The second core is disposed on the first side of the first core and covers the accommodating space. The first lead frame has an embedded portion embedded in the recess portion. The embedded portion has a second height. After embedding the embedded portion in the recess portion of the first core, a total height of the embedded portion and the first core is smaller than the sum of the first height and the second height.

Abstract: A variable coupled inductor includes a first core, two conducting wires, a second core and a magnetic structure. The first core includes two first protruding portions, a second protruding portion and two grooves, wherein the second protruding portion is located between the two first protruding portions and each of the grooves is located between one of the first protruding portions and the second protruding portion. Each of the conducting wires is disposed in one of the grooves. The second core is disposed on the first core. A first gap is formed between each of the first protruding portions and the second core and a second gap is formed between the second protruding portion and the second core. The magnetic structure is disposed between the second protruding portion and the second core and distributed symmetrically with respect to a centerline of the second protruding portion.

Abstract: An optical fiber connector includes optical fibers, a connector body, and a cover. The connector body includes optical lenses arranged at the first side surface. The connector body defines receiving grooves. Each of the receiving grooves has a V-shaped section and two slanted surfaces. The optical fibers are received in the grooves and as a result are correctly aligned with the respective optical lenses. The cover and the slanted surfaces of the receiving grooves cooperatively securely retain the optical fibers in the connector.

Abstract: A choke includes a single-piece core made of a same material, the single-piece core having a first board, a second board, and a pillar located between the first and second boards, a winding space located among the first board, the second board and the pillar, wherein the pillar has a non-circular and non-rectangular cross section having a first axis and a second axis substantially perpendicularly intersecting with each other at a center of the cross section of the pillar, and wherein a circumference of the cross section of the pillar includes two arc edges, four first substantially straight edges substantially parallel to the first axis, and two second substantially straight edges substantially parallel to the second axis, each of the first substantially straight edges being a joint of and in direct contact with one of the arc edges and one of the second substantially straight edges.

Abstract: An inductor includes a first core, a conducting wire, a second core and a first lead frame. There is an accommodating space formed on a first side of the first core and there is a recess portion formed on a second side of the first core, wherein the first side is opposite to the second side. The first core has a first height. The conducting wire is disposed in the accommodating space. The second core is disposed on the first side of the first core and covers the accommodating space. The first lead frame has an embedded portion embedded in the recess portion. The embedded portion has a second height. After embedding the embedded portion in the recess portion of the first core, a total height of the embedded portion and the first core is smaller than the sum of the first height and the second height.

Abstract: An electromagnetic component including a multi-layer, spiral coil structure embedded in a molded body is disclosed. Each layer of the coil structure makes approximately one and a quarter turns of a winding. Each layer of the coil structure has a loose middle segment, two slim end segments overlapping each other with a spacing therebetween, and tapered neck segments respectively connecting the loose middle segment with the two slim end segments.

Abstract: An optical fiber connector includes a number of optical fibers, a body, a number of supports and a cover. The body includes a number of lens portions at a first end thereof, a number of through holes at an opposite second end, and a recess located between the lens portions and the through holes. The through holes are in communication with the recess. The optical fibers extend through the respective through holes and terminate at the respective lens portions. The supports are formed in the recess. Each support supports and retains a portion of the corresponding optical fiber exposed in the recess. The cover is received in the recess. The cover has a number of slanted faces spatially corresponding to the respective supports. The slanted faces and the supports cooperatively securely sandwich the exposed portions of the optical fibers in the body.

Abstract: The invention provides a gas distribution apparatus comprising a main frame and a cover. The main frame includes a plurality of walls having a plurality of second gas channels therein, a plurality of first plenums defined by the walls, a plurality of heat exchange channels, a plurality of first gas channels under the first plenums, a plurality of heat exchange channel covers on the heat exchange channel, and a plurality of first plenum covers on the first plenums. Each first plenum and two adjacent walls defining the first plenum form a trunk with a plurality of branches extending from the trunk, and the branches of adjacent trunks are arranged in an interlaced manner. Each heat exchange channel is between two adjacent trunks. The cover on the main frame encloses a second plenum thereon.

Abstract: A surface mounted electronic component is provided. The surface mounted electronic component includes a main body, a circuit element, a conductive electrode, and a virtual electrode. The circuit element is arranged in the main body. The conductive electrode is disposed on an outer surface of the main body, wherein the conductive electrode electrically is connected to the circuit element. The virtual electrode is disposed on the outer surface of the main body, wherein the virtual electrode lies near the conductive electrode. There is a distance between the virtual electrode and the conductive electrode.

Abstract: A method for verifying tolerance of a connector molding die includes, firstly, providing a first connector molding die, and molding a first optical connector using the first connector molding die. The centers of the lenses relative to the center of the first transmission surface are located. A second connector molding die is provided. A second optical connector is molded by the second connector molding die. The central locations of the first blind holes are determined by measuring the central locations of the second blind holes based on the center of the second transmission surface. Difference values between the locations of the centers of the lenses and the central locations of the first blind holes are determined.

Abstract: Disclosed are a chaotropic agent; a reagent including a chaotropic agent and a lithium salt; a reagent kit including a chaotropic agent; a chaotropic agent, a reagent, a reagent kit, and a method for isolating a nucleic acid by use of a magnetic cellulose material; a method for binding a nucleic acid to a magnetic cellulose material; a method for isolating a nucleic acid; and a method for purifying a chromosome DNA. It is required that each of the chaotropic agents, the reagents, and the reagent kits works with at least one solid-phase, magnetic cellulose-containing carrier to isolate a nucleic acid from non-nucleic acid substances. In addition, each chaotropic agent includes an alcohol substance and a substrate solution for adjusting the alcohol substance to an appropriate concentration and thereby promoting binding of the nucleic acid in a sample to the magnetic cellulose.

Abstract: An apparatus is provided for molding an optical fiber connector. The optical fiber connector includes a main body and a lens portion. The apparatus includes a molding cavity, an insert and a block in the molding cavity. The insert forms a blind hole of the main body. The block forms a recess of the main body. The molding cavity includes a central portion for forming the main body, a lens-forming portion for forming the lens portion, and two lateral portions for forming corresponding lateral surfaces of the main body. The molding cavity includes a gate for introducing molding material into the molding cavity therethrough. The gate is connected to an end of one of the lateral portions distal from the lens-forming portion. The block is positioned in the other end of said one of the lateral portions distal from the gate.

Abstract: An optical fiber connector includes an optical fiber, a body and an optical fiber receiving block. The body includes a top surface, a bottom surface, a front surface, and a rear surface. The top surface and the bottom surface extend from the front surface to the rear surface. The body defines a receiving groove in the rear surface. The body includes a lens portion arranged at the front surface. The optical fiber receiving block is attached on the body in the receiving groove. The optical fiber receiving block defines a through hole therein. The through hole receives the optical fiber. The lens portion is optically coupled with the optical fiber.

Abstract: A mold for molding an optical fiber connector having a number of lens portions with a flat surface or a curved surface, is provided. The mold includes an upper molding portion, a lower molding portion, a first insert, a number of second inserts and a fixing portion. The first insert includes a number of curved molding portions and a flat molding portion. The upper molding portion, the lower molding portion, the first insert and the fixing portion cooperatively define a molding space. A distal end of each second insert is inserted into the molding space. The first insert is moveable relative to the second insert such that the curved molding portions or the flat molding portion is selectively exposed in the molding space and is opposite to the distal ends of the second inserts.

Abstract: An optical fiber connector includes a connector body and a lens block. The connector body defines a number of blind holes and a receiving room. The blind holes opens towards a first side of the connector body. The receiving room opens towards an opposing second side of the connector body The lens block includes a body portion and a number of protruding portions extending from a first side of the body portion. The lens block is received in the receiving room. The protruding portions are positioned between the body portion and the blind holes. The protruding portions are aligned with the respective blind holes. The body portion has a flat second side face free of protruding portions thereon, at an opposite side thereof to the protruding portions.