摘要:
The invention relates to a diamond saw blade which is made by attaching improved undercut preventing tips, produced by diffusing and joining cobalt-based powder onto ultra hard tips at a high temperature, to respective shank slot walls formed on the circumference of a diamond saw blade by means of laser welding in order to remove drawbacks of high cost or insecurity with the conventional art. According to the present invention, there is proposed a diamond saw blade with a shank, and with plural diamond tips provided on the circumference of the shank at a finite interval, slots for discharging cut chips being positioned between the adjoining diamond tips, further comprising undercut preventing tips disposed on respective walls of said slots, said undercut preventing tips including tungsten-carbide-based ultra hard tips provided with cobalt-based layer, wherein said undercut preventing tips are formed by diffusing and joining the cobalt-based powder to said ultra hard tips at a high temperature and said undercut preventing tips are fixed on respective walls of said slots by means of laser welding.
摘要:
A control knob for a vehicle has an improved outward appearance by forming a boundary line between two different materials in a portion that is not visible and preventing abrupt differences in color due to light refraction. The control knob is produced by dual injection molding of two different materials, is installed on one end of a shift lever, and functions as a handgrip. The control knob includes an portion of opaque and transparent materials, an overlapping portion opaque and transparent materials, and a coated portion formed of paint applied to portions of the transparent portion that do not overlap with the opaque portion. A boundary surface between the opaque and transparent portions is such that a refractive index of light passing through the transparent portion from the overlapping portion is close to a refractive index of light passing through the transparent portion from the coated portion.
摘要:
Embodiments are directed to a method of programming a semiconductor memory device, the memory device including: a plurality of memory cell transistors arranged in a plurality of transistor strings; a plurality of word lines, each word line connected to a corresponding memory cell transistor of each of the transistor strings; and a plurality of bit lines, each bit line connected to at least one of the transistor strings, the method comprising: applying a first voltage, and then applying a programming voltage to a selected word line corresponding to the selected memory cell transistor; and in advance of applying the first voltage to the selected word line, applying a second voltage to at least one neighboring word line that neighbors the selected word line, the neighboring word line connected to a neighboring, unselected memory cell transistor of the selected transistor string, to ensure precharging of a channel region of another, unselected transistor string between a first, unselected transistor of the unselected transistor string connected to the neighboring word line and a second, unselected transistor of the unselected transistor string connected to the selected word line, the first, unselected transistor neighboring the second, unselected transistor in the unselected transistor string.
摘要:
A memory cell transistor comprises: an active region, the active region being elongated in a first direction of extension; a tunnel layer on the active region, the tunnel layer comprising a first tunnel insulating layer, a second tunnel insulating layer on the first tunnel insulating layer and a third tunnel insulating layer on the second tunnel insulating layer; a charge storage layer on the tunnel layer; a blocking insulating layer on the charge storage layer; and a control gate electrode on the blocking insulating layer, the control gate electrode being elongated in a second direction of extension that is transverse the first direction of extension, the active region having a first width in the second direction of extension, the second tunnel insulating layer having a second width in the second direction of extension, the second width being different than the first width.
摘要:
The present invention is intended to provide a grinding wheel which is prevented from the one-sided wear or the wear taking place intensively at the outer side of the segments due to working load so as to improve the processed quality of the ground surface. Thus the invention proposes a grinding wheel comprising a plurality of segments attached to the underside of a rim part of a grinding wheel, a rim part for supporting the segments, rib parts for connecting the rim part with a disk part, and a disk part with a central hole for connection to a motor-operated tool, wherein the segments are each demarcated into the inner portion and outer portion around the demarcating interface and the outer portions are so treated as to constitute a higher wear resisting region than the inner portions by controlling the particle size and/or the content of the super abrasive and/or by controlling the hardness of the metal bonding material for binding the abrasive particles together, in order to prevent one-sided wear.
摘要:
Disclosed is a linear amplifier which includes: a common source transistor with the gate connected with an input node; a first common gate transistor connected with the common source transistor in a cascode type, with the drain connected with an output node; and a second common gate transistor connected in parallel with the first common gate transistor, with the gate connected with the input node and the drain connected with the output node.
摘要:
A method and packaging machine for preparing rapidly disintegrating formulations for oral administration are disclosed. The present invention is characterized in that a powdery mixture including a pharmaceutically active ingredient and a sugar or a sugar alcohol powder is filled into a packaging material and, thereafter, the mixture, filled in the packaging material, is heated. The present invention can simply and economically prepare an oral formulation which undergoes rapid disintegration in the oral cavity and provides for high-quality administration to patients.
摘要:
An air bag apparatus includes: a supporting plate; an air bag case mounted on the supporting plate such that a space is formed therein; an air bag cushion installed in the space and attached to the supporting plate; an inflator for supplying a gas to the air bag cushion, the inflator being mounted at the supporting plate; and a clamping device for clamping a middle portion of the air bag cushion, the clamping device being coupled with the supporting plate. The inflator may supply the gas to side portions of the air bag, such that the side portions expand for a predetermined time while the middle portion is clamped by the clamping device, and when the inflating force of the air bag overcomes the clamping force, the middle portion expands.
摘要:
An abrasive wheel to grind or cut a variety of materials comprising a core part fixed to a tool transmitting motive power and long tips and short tips alternately attached on the base surface of a shank around the core part. The tips are arranged to cover the base surface with space therebetween at predetermined intervals along the circumference of the shank.