摘要:
A row unit of an agricultural planter includes a seed meter. The seed meter includes first and second disks within a seed meter housing. The first and second seed disks are positioned in the seed meter housing such that the disks rotate in the same rotation direction and include a common seed release point. A single drive member is operatively connected to both the first and second seed disks such that the drive member selectively rotates one or both of the first or second seed disks at a time. The seed disks may be angularly positioned and conical-shaped member with a central axis and comprising seed cells radially positioned about an outer portion and being substantially non-perpendicular to the central axis. An air pressure source also is included to adhere seed to the disks.
摘要:
Disclosed is a channel type induction furnace (50) provided with a furnace floor (71) that is inclined downwards from an operative rear of the furnace hearth (50) towards an opposing operative front of the hearth (50), with a wall (73A) at the front of hearth (50) comprising a bottom section (76) and a top section (77), with the front wall bottom section (76) extending further into the hearth (50) than the front wall top section (77), and the front wall bottom section (76) terminating in an upper edge (78) in abutment with the front wall top section (77), with a down-passage (9) to an induction heater (79), located proximate the front wall (73A), having an inlet in the floor (71) at a location proximate the base of the front wall (73A) and the or each up-passage (54A, 54B) having an outlet in the floor (71) at a location in abutment with the base of the front wall bottom section (76) and with the front wall bottom section (76) being provided with a vertical slot (59A, 59B) extending upwards above the or each up-passage (54A, 54B) through it and opening onto the upper edge (78) of the bottom section (76).
摘要:
A wheel (10), including a rim (12) and a disc (14) by which the wheel (10) is attachable to a hub of a vehicle, the disc (14) being attachable to the rim (12) by means of generally axially extending fasteners (20), each of which passes through a respective opening (18) of the disc (14) and is received in a respective generally axially extending passage (24) provided in a connecting member (16) of the rim (12), wherein the wheel (10) also includes a spacer (40) having an axial depth to space the disc (14) from the connecting member (16) of the rim (12), the spacer (40) including an opening (42) through which a fastener (20) is receivable to connect the disc (14) to the connecting member (16) of the rim (10), and a locating member (44) which is receivable in a corresponding locating opening (26) in the connecting member of the rim (12).
摘要:
A surface cleaning apparatus having: a main body; a first wheel positioned at or near a first end of the main body; and a second wheel positioned at or near a second end of the main body, wherein the main body is generally cylindrical and wherein a portion of the main body positioned in between a central region of the main body and each wheel has a radius which increases as it extends towards each wheel.
摘要:
Methods and apparatuses for steering flexible glass webs are disclosed. In one embodiment, a steering device for non-contact steering of a glass web having a conveyance direction and a cross direction normal to the conveyance direction includes a fluid injection bar having an elongate axis oriented in a cross direction of the glass web. The steering device also includes a pivot bearing assembly coupled to the fluid injection bar such that the fluid injection bar is pivotable in a plane perpendicular to the conveyance direction of the glass web, an actuator coupled to the fluid injection bar for adjusting the orientation of the fluid injection bar with respect to the glass web, and an edge detection device positioned proximate to an edge of the glass web for evaluating a position of an edge of the glass web.
摘要:
A flame spray pyrolysis method for making nanoscale, lithium ion- conductive ceramic powders comprises providing a precursor solution comprising chemical precursors dissolved in an organic solvent, and spraying the precursor solution into an oxidizing flame to form a nanoscale, lithium ion-conductive ceramic powder, wherein a concentration of the chemical precursors in the solvent ranges from 1 to 5,5 M. The precursor solution can comprise 1-20% excess lithium with respect to a stoichiometric composition of the ceramic powder. Nominal compositions of the nanoscale, ceramic powders are Li 1.4 AI 0.4 M 1.6 (PO 4 ) 3 where M is Ti or Ge.
摘要:
An ion-conducting composite electrolyte is provided comprising path-engineered ion-conducting ceramic electrolyte particles and a solid polymeric matrix. The path-engineered particles are characterized by an anisotropic crystalline structure and the ionic conductivity of the crystalline structure in a preferred conductivity direction H associated with one of the crystal planes of the path-engineered particle is larger than the ionic conductivity of the crystalline structure in a reduced conductivity direction L associated with another of the crystal planes of the path-engineered particle. The path-engineered particles are sized and positioned in the polymeric matrix such that a majority of the path-engineered particles breach both of the opposite major faces of the matrix body and are oriented in the polymeric matrix such that the preferred conductivity direction H is more closely aligned with a minimum path length spanning a thickness of the matrix body than is the reduced conductivity direction L.
摘要:
Embodiments are directed to glass-ceramic substrates with a III-V semiconductor layer, for example, a GaN layer that can be used in LED lighting devices. The glass-ceramics material is in the anorthite-rutile (CaAl2Si2O8+TiO2) family or in the cordierite-enstatite (SiO2—Al2O3—MgO—TiO2) family.
摘要:
The disclosure is directed to a method for controlling the sludge that is generated during the wet acid etching of glass articles. The four Factors that need to be controlled are (i) the dissolved glass level A; (ii) the HF concentration B; (iii) the second acid concentration C, the second acid being a strong acid, and (iv) the solubility constant D of the precipitate, Ksp, which is controlled by changing temperature or ionic strength. The disclosed method utilized HF as the etchant and a strong acid selected from the group consisting of HCI, H 2 SO 4 .HNO 3 and HCIO 4
摘要:
A method of making an article having a textured glass surface, including, for example: attaching microencapsulated particles to a portion of a glass surface of the article; and contacting the glass surface having the attached microencapsulated particles with an etchant to form the textured surface. A glass article prepared by the method including: at least one textured surface having excellent haze, distinctness-of-image, surface roughness, and uniformity properties, as defined herein. A display system that incorporates the glass article, as defined herein, is also disclosed.