摘要:
A siloxane-based resin having germanium and an interlayer insulating film for a semiconductor device formed using the same. The siloxane-based resins have a low dielectric constant in addition to excellent mechanical properties so that they are useful materials for an insulating film between interconnecting layers of a semiconductor device.
摘要:
A substrate bonding apparatus includes a bonding chamber, lower and upper stages positioned at lower and upper spaces at an interior of the bonding chamber, respectively, the lower stage including a first receiving part, a first lifting system having a first support part for supporting a first substrate, the first receiving part receiving the first support part within the lower stage, and a blowing system formed in the first support part to blow air through the first support part.
摘要:
A high flow polyvinyl halide compound is disclosed. The compound employs conventional ingredients plus a combination of phosphite stabilizer and hydrotalcite stabilizer which improve the melt flow index of the compound by at least 20%, as compared with a compound without the two types of stabilizers. The dramatically improved melt flow allows a molding cycle time reduction by as much as 22% because of a five-fold reduction in the fill step.
摘要:
Devices for generating streamwise vorticity in a boundary includes various forms of vortex generators. One form of a split-ramp vortex generator includes a first ramp element and a second ramp element with front ends and back ends, ramp surfaces extending between the front ends and the back ends, and vertical surfaces extending between the front ends and the back ends adjacent the ramp surfaces. A flow channel is between the first ramp element and the second ramp element. The back ends of the ramp elements have a height greater than a height of the front ends, and the front ends of the ramp elements have a width greater than a width of the back ends.
摘要:
An apparatus for use with an elevator car is operable to selectively lock an elevator car door. The apparatus verifies that the elevator car door is closed, locks the elevator car door, and verifies that a lock is engaged. Once conditions are met, the apparatus signals an elevator controller that the elevator car can move through a hoistway. The apparatus further ensures that passengers can safely disembark from the elevator car by detecting the position of the elevator car relative to a designated landing zone within the hoistway, and confirming the elevator car is stopped at a landing zone prior to disengaging the lock. The apparatus thus ensures that the elevator car door remains closed while the elevator car is in motion or between landing zones.
摘要:
A method of making a finely textured molded article is disclosed. The method utilizes properties of the compound being molded, such as impact toughness and melt flow index. Poly(vinyl halide), particularly poly(vinyl chloride), articles can be compound-injection-molded using the method, in order to simulate the appearance of original metal, glass, or wood articles. Consumer, transportation, building construction, and other industries can benefit from durable plastic articles that simulate the more fragile articles.
摘要:
A coil nailing device for finishing materials is invented that comprises a standby part for temporarily retaining and loading the nails into a muzzle. A door is installed adjacent to the standby part to check the nail supply. A door latch consists of a hook, coil spring and latch hinge shaft. The door and door latch are operated in the lateral direction, perpendicular to the axis of the main body. The muzzle consists of an adapter, lever arm and a pair of arc-shaped sliding grooves formed on both lateral surfaces. The adapter is attachable to the nose of the main body. A clearance setting device is designed to allow the use of various sizes of nails by setting the depth of the magazine depending on the loaded nail size. An interval setting device is convenient to nail a series of shingle panels by setting the panel interval while the coil nailing device is sliding along the edge of the panels.
摘要:
A portable microwave plasma discharge unit receives microwaves and a gas flow via a supply line. The portable microwave plasma discharge unit generates plasma from the gas flow and the received microwaves. The portable microwave plasma discharge unit includes a gas flow tube made of a conducting and/or dielectric material and a rod-shaped conductor that is axially disposed in the gas flow tube. The rod-shaped conductor has an end configured to contact a microwave supply conductor of the supply line to receive microwaves and a tapered tip positioned adjacent the outlet portion of the gas flow tube. The tapered tip is configured to focus the microwaves received from the microwave supply conductor to generate plasma from the gas flow.
摘要:
Nucleotide sequences encoding formate dehydrogenases D & E and a method for preparing succinic acid using the same, more particularly, formate dehydrogenases D & E converting formate to carbon dioxide and hydrogen, fdhD and fdhE nucleotide sequences encoding the formate dehydrogenases D & E, recombinant vectors containing the nucleotide sequences, microorganisms transformed with the recombinant vectors, and a method for preparing succinic acid using the transformed microorganism.
摘要:
A method for developing a culture medium using genome information and in silico anlaylsis. In one implementation, the method involves developing a minimal synthetic medium, including the steps of constructing a metabolic network using genome information of prokaryotic cell or eukaryotic cell, selecting components of the minimal synthetic medium removing any one among external metabolites from the constructed metabolic network and conducting metabolic flux analysis using in silico simulation, and determining a final culture medium by actual culture.