36results about How to "Reliable growth" patented technology

A method for lifting crystal growth by induction heating in reducing atmosphere is characterized by placing a tungsten crucible or a molybdenum crucible on a hard graphite felt; wrapping a plurality of layers of soft graphite felt around the hard graphite felt and the crucible; sleeving the wrapped hard graphite felt and the crucible in a quartz cylinder; wholly putting the quartz cylinder in an induction coil inside a crystal-lifting furnace, especially on a tray at the bottom of hearth; charging materials to the crucible; arranging and covering a hard graphite felt insulation cover or a zirconia insulation cover above the crucible; closing the door of the furnace and carrying out vacuumization; injecting shielding gas till positive pressure is reached; carrying out crystal growth by using a conventional method; and carrying out anneal in the atmosphere of air, oxygen or other atmosphere after the crystal growth is finished. The method has the advantages of utilizing the graphite felt to provide the reducing atmosphere so as to be capable of adopting the low-cost tungsten crucible or molybdenum crucible and realize the growth of sapphire and lithium aluminate and other crystals with low cost, thus having better universality, requiring simple equipments and especially being suitable for production of large scale.

The invention relates to a comprehensive verification system and method for identities and documentary evidences, and belongs to comprehensive credential verification systems and methods. According to the comprehensive verification system, a verification system website is established, and the verification system website serves as a verification center; the verification system website is connected with a terminal of the verification system website through a network to form a verification network system. Individual registration information and unit registration information are included in the verification system website, and are the bottom layer basic information of the verification system website. According to the method, a registration method and a verification method are included, unique verification email addresses are automatically generated by using identity numbers and organizing institution codes and serve as verification bases, and simple, convenient and reliable verification is achieved. Wrong identity cards, repeat identity cards and fake identity cards can be conveniently and fast found and screened, and the problem of train ticket wiped by ticket touts can be solved; fake official seals and credentials can be identified; the problem of social insurance and birth certificate verification can be solved.

A growth crucible (2) for depositing on a seed crystal substrate (5) a silicon carbide single crystal (6) using a sublimate gas of a silicon carbide raw material (11) is disposed inside of an outer crucible (1). During the course of silicon carbide single crystal, a silicon raw material (22) is continuously fed from outside into a space between the growth crucible and the outer crucible for the purpose of vaporizing the silicon raw material. An atmosphere gas surrounding the growth crucible is constituted of a silicon gas. The pressure of the atmosphere silicon gas is controlled to suppress a variation in the composition of the sublimate gas within the growth crucible to thereby grow a large-sized silicon carbide single crystal with few crystal defects on the seed crystal substrate reliably at a high growth rate.

In a monolithic ceramic electronic component, where a distance in the height direction between one of outer-layer dummy conductors in an outer layer portion, which is arranged closest to an inner layer portion, and one of inner electrodes in the inner layer portion, which is arranged closest to the outer layer portion, is b, and an opposing distance between an adjacent pair of first inner electrodes and second inner electrodes in the height direction is t, 2t≦b is satisfied, such that the outer-layer dummy conductors can be spaced a sufficient distance away from the inner electrodes, and such that the distance between the inner electrodes can be prevented from being reduced when the inner electrodes arranged in overlapping relation to the outer-layer dummy conductors are pressed in a pressing step before firing, and a reduction of BDV can be prevented.

The invention belongs to the technical field of laser added material manufacturing, and in particular, relates to a method for in-situ growth of an auxiliary support structure. The method adopts a zoning scanning mode to machine a product and an auxiliary support; the product is machined by normal high-power density parameters; and the auxiliary support is machined by gradual increasing process parameters: the low-power density is used for bottoming, so that a first layer of powder forms weak combination as a substrate of several subsequent layers; and the power density of the several subsequent layers is gradually increased until the normal power density is reached. As the method breaks through growth of the auxiliary support only from the substrate, and realizes in-situ growth of the auxiliary support, the waste of powder raw materials can be reduced, meanwhile, the laser machining time is shortened, and the product forming efficiency is improved.

A high performance computing system and method communicate data packets between computing nodes on a multi-lane communications link using a modified header bit encoding. Each data packet is provided with flow control information and error detection information, then divided into per-lane payloads. Sync header bits for each payload are added to the payloads in non-adjacent locations, thereby decreasing the probability that a single correlated burst error will invert both header bits. The encoded blocks that include the payload and the interspersed header bits are then simultaneously transmitted on the multiple lanes for reception, error detection, and reassembly by a receiving computing node.

The invention belongs to the technical field of chemical equipment and particularly relates to a continuous multi-stage constant-temperature-difference cooling crystallizer, comprising a crystallizerbody; the top and bottom of the crystallizer body are provided with a feed port and a discharge port respectively; the inside of the crystallizer body is divided into multiple cavities through cavitypartitions; each cavity partition is provided with a fluid passage which is openable; a heat exchange device and a stirrer are arranged in each cavity, and independent temperature control is carried in each cavity; a bottom stirrer is arranged at the lower portion of the bottom cavity; the stirrer in every cavity and the bottom stirrer are connected with a driving device through a stirring shaft.The continuous multi-stage constant-temperature-difference cooling crystallizer is suitable for continuous production, so that labor intensity is reduced, energy consumption for material transfer andpollution are decreased, and equipment utilization efficiency is improved; it can be ensured that crystallized products are good in quality stability and reliability and that the technique is reproducible, and differences between different batches of one material are decreased.

The invention relates to the technical field of Gastrodia elata cultivation, and particularly relates to a Gastrodia elata cultivation method. The method includes: selecting a shady forest land, digging holes, setting trophic structure layers in the holes, setting pavement layers of mulberry twigs, sowing honey mushroom in a multi-layer manner, and treating and controlling a Gastrodia elata strain cultivation method. Through the method, the Gastrodia elata strains can obtain sufficient nutriments, it is ensured that Gastrodia elata can obtain nutriments provided by the honey mushroom during a seedling period, the growth of the Gastrodia elata is reliable, the Gastrodia elata can grow sturdily, the yield of the Gastrodia elata can be improved, and the quality of the Gastrodia elata can be effectively improved.

The invention discloses a method for preparing calcium doped REBCO (rare earth barium copper oxygen) high temperature superconductivity standard single crystal. The method comprises steps of a) preparing powder of RE123 phase; b) preparing a precursor; c) putting a seed crystal on the upper surface of the precursor; and d) putting the precursor and the seed crystal in a crystal growth furnace for fusing the texture so as to grow a high temperature superconductivity material, wherein the precursor in step b) is a cylindrical precursor formed through uniformly mixing the powder of RE123 phase obtained in step a) according to the proportion of RE123+(0-15)wt%CaCO3+(0.3-1.5)wt%CeO2 and then pressing. According to the method, the calcium doped REBCO high temperature superconductivity standard single crystal is prepared through fusing the texture of top seed crystal, in the preparation process, the CaCO3 only needs to be mixed in the precursor powder so as to be pressed into the cylindrical precursor. The method is simple, easy to operate, completely repeatable and controllable.

A piezoelectric actuator includes a vibration plate 26, a common electrode 27 formed on the vibration plate 26, a piezoelectric element 29 formed on the common electrode 27, a crystal control layer 28 formed on the piezoelectric element 29, a separate electrode 33 formed on the crystal control layer 28, and an electrode line 34 formed on the piezoelectric element 29. The crystal control layer 28 is formed in the displacement region. The crystalline structure of a piezoelectric element 29a in the displacement region is a perovskite structure, and that of a piezoelectric element 29b in the wiring region is a pyrochlore structure.

The invention discloses an ecological restoration method for a high and steep slope. The method comprises the steps of spraying a first nutrient medium and a second nutrient medium to the high and steep slope, enabling the first nutrient medium to form a first substrate layer which is located at the bottom and is in contact with the high and steep slope, and enabling the second nutrient medium to form a second substrate layer located above the first substrate layer, wherein the thickness of the first substrate layer is 3-5 times that of the second substrate layer, and the second nutrient medium comprising seeds. The first nutrient medium is low in moisture content and high in viscosity, the first substrate layer well cooperating with the high and steep slope can be formed, the second substrate layer located above the first substrate layer can be formed by spraying and sowing the second nutrient medium containing seeds, and the thickness of the first substrate layer is 3-5 times that of the second substrate layer. By means of the thick first substrate layer, the high and steep slope can be reliably connected, and enough depth can be provided for reliable growth of seeds of the second substrate layer.

An affordable method appropriate even for solo home-users without a partner to image their skin even in areas that they cannot see directly, or photograph. The method uses a device in contact with the skin to create images, and physical aids for consistently aligning the images. This permits comparison with later images to find growing lesions. The purpose includes the early detection of possible pre-melanomas and melanomas so diagnosis and treatment can be sought earlier. The images provide reliable proof of growth, a symptom, for the dermatologist's diagnosis. Alternately, a single set of easily referenced baseline images can be created.

A fastener for use in joining dissimilar materials manufactured by the process of producing the fastener with an external surface that forms an electrically insulating oxide layer when subjected to oxidation and, after manufacture and prior to use, subjecting the fastener to a pre-oxidation process to grow the desired oxide layer in situ on the external surface of the fastener. The present invention also provides a dissimilar material joint in which the pre-oxidized fastener is used to mechanically join dissimilar materials with the oxide layer electrically insulating the fastener from at least one of the dissimilar materials. The fastener may be a rivet used in friction self-piercing riveting (F-SPR). The fastener may be fabricated from an alloy capable of forming Al₂O₃ or Cr₂O₃ by thermal oxidation. The fastener may be pre-coated with Al or Cr that functions as a seed layer to form Al₂O₃ or Cr₂O₃.

The present invention relates to a method for manufacturing metal timepiece components, characterised in that it comprises the steps of forming a multi-level photoresist mould, by means of a UV-LIGA type method, and of galvanically depositing a layer of at least one metal starting from at least two conductive layers so as to form a block that substantially reaches the top surface of the photoresist.