Abstract: The disclosure relates to a tape laying apparatus configured to lay prepreg tape to mould surface. The tape laying apparatus includes a tape supply spool, a compaction head, a cutting tool and at least one travel distance adjustment component. The tape supply spool is configured for the prepreg tape to be wound thereon. The compaction head is configured for delivering the prepreg tape to the mould surface from the tape supply spool. The cutting tool is movable along a cutting path. The cutting tool is configured to cut the prepreg tape passing through the cutting path. The at least one travel distance adjustment component is movably located between the cutting path and the compaction head and configured to push the prepreg tape passing through the cutting path so as to increase or decrease a travel distance of the prepreg tape from the cutting path to the compaction head.

Abstract: A fermentation tank includes a tank body, enclosing a cavity therein, having a material inlet and a material outlet; a heat exchange structure, disposed on a wall of the cavity for heat exchanging with the tank body; at least one flow disturbing plate, being an elongated plate, the width direction of the flow disturbing plate being parallel to a radial direction of the tank body, the longitudinal direction of the flow disturbing plate being parallel to a vertical direction, a length of the flow disturbing plate being larger than a width thereof, the flow disturbing plate being arranged in the cavity and connected to the tank body, the flow disturbing plate having a heat exchange channel therein, two ends of the heat exchange channel communicating an exterior respectively so that heat is exchanged between the at least one flow disturbing plate and the cavity.

Abstract: A ball valve for fermentation tank includes a main body, a ball body, and a rotation mechanism. The main body encloses a chamber therein and has a first inlet, a first outlet, and a discharge port therebetween. The ball body has a flow channel with a second inlet, a second outlet, and a liquid intake port. A gap is formed between the ball body and the main body. The rotation mechanism is connected to the ball body to make it rotate. When the ball body is at an open position, the second inlet communicates the first inlet, the second outlet communicates the first outlet, and the liquid intake port communicates the gap. When the ball body is at a washing position, the second inlet and the second outlet face the gap, the liquid intake port communicates the first inlet.

Abstract: Methods, systems, and computer readable mediums for network hardware table management including obtaining, by a network device table manager of a network device, a first feature table entry published by a first feature; obtaining, by the network device table manager, a second feature table entry published by a second feature; making a first determination that the first feature table entry and the second table feature entry each comprise a common prefix; and based on the first determination, adding a first combined feature table entry to a combined feature table, the first combined feature table entry comprising the common prefix, a first feature action of the first feature table entry and a second feature action of the second feature table entry.

Abstract: A virtual reality positioning device including a casing, a plurality of lenses, and a plurality of optical positioning components is provided. The casing has a plurality of holes. The lenses are installed in the holes, respectively, where a field angle of each of the lenses is greater than or equal to 120 degrees and less than or equal to 160 degrees, and the lenses include convex lenses or Fresnel lenses. The optical positioning components are installed in the casing and aligned to the lenses, respectively. In addition, a virtual reality positioning system and manufacturing method of a virtual reality positioning device are provided.

Abstract: An optical system includes a collimated light source, a beam splitter, two mirrors and two lenses, a focus lens, and a detector. An initial light beam is generated by the light source and then separated by the beam splitter into a first light beam and a second light beam. The two mirrors respectively direct the first and second light beams on a sample with symmetrical paths and the two lenses focus the first and second light beam on the sample respectively. The first and second light beams are reflected from the sample and along the counterpart paths to the beam splitter. An interfered light beam is then generated by combining the reflected first and second light beams, and focused by a focus lens on a detector. A Dove prism can be configured between one mirror and one lens of the two for contrast enhancement. It can produce the photon combination with same of direction in this setup to enhance contrast.

Abstract: A method for electroless metal deposition and an electroless metal layer included substrate are provided. The method for electroless metal deposition includes steps as follows. a) cleaning a substrate, applying a hydrofluoric acid onto the substrate; and then applying a modifying agent onto the substrate to form a chemical oxide layer on the substrate; b) a catalyst layer is formed on the chemical oxide layer, wherein, the catalyst layer includes a plurality of colloidal nanoparticles, and each of the plurality of colloidal nanoparticles includes a palladium nanoparticle and a polymer which encapsulates the palladium nanoparticle, and c) depositing a metal on the catalyst layer through an electroless metal deposition to form an electroless metal layer.

Abstract: Methods, systems, and computer readable mediums for network hardware table management including obtaining, by a network device table manager of a network device, a first feature table entry published by a first feature; obtaining, by the network device table manager, a second feature table entry published by a second feature; making a first determination that the first feature table entry and the second table feature entry each comprise a common prefix; and based on the first determination, adding a first combined feature table entry to a combined feature table, the first combined feature table entry comprising the common prefix, a first feature action of the first feature table entry and a second feature action of the second feature table entry.

Abstract: A memory device includes a memory array including a plurality of memory cells arranged in rows and columns. A closed loop bias generator is configured to output a column select signal to the memory array. A current limiter receives an output of the closed loop bias generator. The current limiter is coupled to a plurality of the columns of the memory array.

Abstract: Disclosed herein is a process for chemically synthesizing of hydroquinone derivatives, especially for hydroquinone derivatives with heptadecatrienyl side chain, which is synthesized via a Wittig reaction of 2-(10?-oxononyl)-1,4-diacetoxyl benzene and (3E, 5Z)-3,5-heptadien-1-triphenylphosphonium iodide and then deacetylation. In addition, the product is solid powder.

Abstract: The present disclosure is directed to a wafer drying system and method that detects airborne molecular contaminants in a drying gas as a feedback parameter for a single wafer or multi-wafer drying process. For example, the system comprises a wafer drying station configured to dispense a drying gas over one or more wafers to dry the one or more wafers, a valve configured to divert the drying gas to a first portion and a second portion, and an exhaust line configured to exhaust the first portion of the drying gas. The system further comprises a detector configured to receive the second portion of the drying gas and to determine a real time property of the second portion of the drying gas, and a control unit configured to control a feedback operation of the wafer drying station based on the real time property of the second portion of the drying gas.

Abstract: An optical system includes a collimated light source, a beam splitter, two mirrors and two lenses, a focus lens, and a detector. An initial light beam is generated by the light source and then separated by the beam splitter into a first light beam and a second light beam. The two mirrors respectively direct the first and second light beams on a sample with symmetrical paths and the two lenses focus the first and second light beam on the sample respectively. The first and second light beams are reflected from the sample and along the counterpart paths to the beam splitter. An interfered light beam is then generated by combining the reflected first and second light beams, and focused by a focus lens on a detector. A Dove prism can be configured between one mirror and one lens of the two for contrast enhancement. It can produce the photon combination with same of direction in this setup to enhance contrast.

Abstract: Herein disclosed is an optoelectronic unit measuring device comprising an objective lens, an imaging lens, a photographing lens, and a focus adjustment module disposed in a first light path. The objective lens receives a first testing light and converts the first testing into a second testing light. The imaging lens receives the second testing light and converts the second testing light into a third testing light. The photographing lens receives the third testing light and measures beam characteristic. The focus adjustment module selectively provides a first light transmitting member in the first light path, and adjusts the third testing light to focus at a first focus position or a second focus position. Wherein the focus adjustment module comprises a first carrier plate having a first area with the first light transmitting member, and moves the first carrier plate to selectively align the first area with the first light path.

Abstract: Examples and techniques pertaining to a security mechanism for multi-client access to a single storage device through a single controller are described. A controller receives a request from a first client of a plurality of clients to access a storage device which stores data associated with the plurality of clients. The controller determines one or more aspects with respect to the first client. The controller then performs one of a plurality of operations including: (a) granting the first client access the storage device responsive to a positive result of the determining, and (b) rejecting the request responsive to a negative result of the determining. The storage device is divided into a plurality of partitions to store respective data associated with each of the plurality of clients in one or more respective partitions of the plurality of partitions.

Abstract: Disclosed herein is a process for chemically synthesizing of hydroquinone derivatives, especially for hydroquinone derivatives with heptadecatrienyl side chain, which is synthesized via a Wittig reaction of 2-(10?-oxononyl)-1,4-diacetoxyl benzene and (3E, 5Z)-3,5-heptadien-1-triphenylphosphonium iodide and then deacetylation. In addition, the product is solid powder.

Abstract: A memory device includes a memory array including a plurality of memory cells arranged in rows and columns. A closed loop bias generator is configured to output a column select signal to the memory array. A current limiter receives an output of the closed loop bias generator. The current limiter is coupled to a plurality of the columns of the memory array.

Abstract: A system includes a charge pump system having a plurality of enable signal input terminals and an output terminal, the charge pump system configured to provide an output voltage at the output terminal; and a detection circuit connected to the enable terminals and the output terminal of the charge pump system, the detection circuit configured to compare the charge pump system output voltage to a plurality of predefined input detection voltage levels, and to selectively output a plurality of enable signals to the charge pump system enable signal input terminals in response to the comparison.

Abstract: Provided is a method for preparing synthetic cannabidiol, including hydrolysis-decarboxylation of a compound represented by formula (II) in a solvent-free state under atmospheric pressure. The method further includes preparation of the compound represented by formula (II). The method provides a safe, economical, environmentally friendly and scalable method for synthetic preparation of cannabidiol.

Abstract: A wafer drying method to detect airborne molecular contaminants in a drying gas as a feedback parameter for a single wafer or multi-wafer drying process is provided. For example, the method includes dispensing in a wafer drying station a drying gas over one or more wafers; collecting the drying gas from an exhaust of the wafer drying station; determining the concentration of contaminants in the drying gas; re-dispensing the drying gas over the one or more wafers if the concentration of contaminants is higher than a baseline value; and transferring the one or more wafers out of the wafer drying station if the concentration is equal to or less than the baseline value.

Abstract: A three dimensional tissue printing method is disclosed. The three dimensional tissue printing method includes the following steps: performing large support stand printing to form a first printing body; performing small support stand printing to form second printing body on the first printing body and forming a tissue structure by crossly connecting in between the first printing body and the second printing body. Besides, a three dimensional tissue printing device and artificial skin are also presented.