Abstract: A heterojunction photovoltaic cell. The cell includes a nanoporous substrate, a transparent conducting oxide disposed on the nanoporous substrate, a nanolaminate film deposited on the nanoporous substrate surface, a sensitizer dye disposed on a wide band gap semiconducting oxide and a redox shuttle positioned within the layer structure.

Abstract: A bonded abrasive tool includes a bonded abrasive body having a bond matrix material comprising an organic bond material, abrasive grains contained within the bond matrix material, and not greater than about 5 vol % chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity comprises pores surrounding the chopped fiber bundles.

Abstract: A tundish assembly, including an element, for preventing or limiting steel reoxidization in the continuous casting of molten steel, is used in combination with a refractory nozzle. The element has an orifice engaging the outer surface of the nozzle, a main surface surrounding the main orifice and having a lowest level lower than the top outer edge of the nozzle inlet portion, and a periphery having an upper face surrounding the man surface of the element. The upper face of the periphery of the element is higher than the main surface of the element and is higher than the surface of the bottom well of the tundish. The main surface of the element is arranged so as to contact molten steel when the tundish is in use.

Abstract: An apparatus for casting metal strip includes a pair of counter-rotatable casting rolls having casting surfaces laterally positioned to form a nip therebetween through which cast strip can be cast, and on which a casting pool of molten metal can be formed supported on the casting surfaces above the nip, a pair of molten metal delivery nozzles disposed above the nip and capable of discharging molten metal to form the casting pool supported on the casting rolls, a pair of side dams adjacent ends of the pair of casting rolls capable of confining the casting pool, a pair of delivery nozzle actuators capable of positioning the delivery nozzles independently of the side dams and a pair of side dam actuators capable of positioning the side dams independently of the delivery nozzles during casting, and a control system capable of controlling desired distance between the delivery nozzles and the side dams.

Abstract: In a state in which an insert is fitted to an inner portion of a main mold, a hole passing through from an outer portion of the main mold to a cavity of the insert is provided in the main mold to the insert. An extrusion pin bush is inserted into the hole from a side of an opening portion facing the outer portion of the main mold in the hole. A stopper, which is loosely inserted into an outer periphery of a base end side protruding to the outer portion of the main mold from an inner diameter portion of the extrusion pin bush of the extrusion pin, is attached by screw to a thread portion provided in the opening portion facing the outer portion of the main mold. The extrusion pin bush abuts on a locking portion provided on the side of the opening portion facing the outer portion of the main mold in the hole by the stopper.

Abstract: A process for casting a turbine engine component is provided. The process comprises the steps of placing a refractory core assembly comprising two intersecting plates in a die, encapsulating the refractory core assembly in a wax pattern having the form of the turbine engine component, forming a ceramic shell mold about the wax pattern, removing the wax pattern, and pouring molten material into the ceramic shell mold to form the turbine engine component.

Abstract: A molding machine that defines upper and lower mold cavities while cope and drag flasks, having a match plate sandwiched therebetween, are rotated from a horizontal position to a vertical position. An upper squeeze member is insertable into the cope flask. A pressure-applying plane of the upper squeeze member defines an upper mold cavity together with the match plate and the cope flask. A pivoting frame supports the cope and drag flasks, having a match plate sandwiched therebetween, and the upper squeeze member, such that they rotate in unison between a horizontal position to a vertical position. A fixed filling frame abuts the drag flask when the cope and drag flasks are in the vertical position. A lower squeeze member has a pressure-applying plane that is oriented horizontally. The pressure-applying plane of the lower squeeze member defines a lower mold cavity together with the match plate, the drag flask, and the filling frame.

Abstract: A buffing composition includes an emulsion having an aqueous liquid phase and an oily liquid phase; a solubilized zirconium carboxylate; and fine abrasive particles having a Mohs hardness of at least 4. The fine abrasive particles have a particle size distribution having at least one mode with a particle size of at least 5 micrometers. A method of finishing a surface of a material using the buffing composition is also disclosed.

Abstract: A high-tensile steel plate of low acoustic anisotropy and high weldability having yield stress of 450 MPa or greater and tensile strength of 570 MPa or greater and a process for producing the steel plate are provided. The steel has an Si content of 0.10% or less, thereby achieving a volume ratio of island martensite of 3% or less, contains Nb?0.025% and Ti?0.005% so as to satisfy 0.045%?[Nb]+2×[Ti]?0.105%, contains Nb, Ti, C and N in ranges such that the value of A=([Nb]+2×[Ti])×([C]+[N]×12/14) is 0.0022 to 0.0055, and has a steel structure wherein bainite volume ratio is 30% or more and pearlite volume ratio is less than 5%.

Abstract: A method for preparing a chemical mechanical polishing slurry composition comprises the steps of preparing an aqueous iron salt solution by admixing an iron salt and cooled water of 5° C. or less; preparing an oxide containing silicon and iron as an additive by admixing and stirring a silicon salt and the aqueous iron salt solution for carrying out a reaction of the silicon salt and the aqueous iron salt solution to form an additive solution; and mixing the additive solution with at least one abrasive, at least one oxidizing agent and optionally at least one additional component to form the chemical mechanical polishing slurry composition.

Abstract: The joining apparatus includes a suction nozzle for holding an electronic component, a board stage for holding a circuit board in opposition to the electronic component, and an excimer ultraviolet lamp placed at an irradiation position between the positioned electronic component and circuit board. In such a joining apparatus, ultraviolet irradiation to Au bumps of the electronic component and ultraviolet irradiation to board electrodes of the circuit board are performed concurrently by the excimer ultraviolet lamp to execute a cleaning process of the two metallic portions. Thereafter, ultrasonic vibrations are imparted to the two metallic portions while those metallic portions are kept in contact with each other, by which metal joining between the two metallic portions is fulfilled.

Abstract: A first roller is arranged on one side of a transfer path for transferring flux cored wire solder, and a second roller is arranged on the other side. The first roller has on its outer circumference a guide groove in which the wire solder is fitted. The second roller is provided, with a grooving blade and a feed blade closely contacted to each other. The grooving blade comprises a continuous blade edge on the outer circumference, and the feed blade has on its outer circumference a plurality of engaging claws intermittently formed at a constant pitch. The second roller is driven and rotated to thereby advance and retract the wire solder by means of the feed blade, and thus the wire solder is grooved by the grooving blade.

Abstract: The present invention provides a producing method of powder particles having an average particle diameter on the order of submicrons. Specifically, the producing method is a producing method of powder particles obtained by grinding a product to be ground by using plural grinding media, wherein the grinding media including at least one kind (grinding medium A) having an average particle diameter of 0.01 to 5 times and at least one kind (grinding medium B) having an average particle diameter of 10 to 450 times, with respect to the average particle diameter of the product to be ground before being ground, are used.

Abstract: The method casts a disk rotor which can restrain partial abrasion in a sliding ring part, particularly, in the circumferential outer surface. A mold includes a casting cavity to cast the sliding ring part, an outer circumference forming surface, an inner circumference forming surface, a gate group including a plurality of gates formed in the outer circumference forming surface at positions spaced apart from each other at predetermined intervals with respect to a circumferential direction, each of the gates having a central line P2 inclined at an angle greater than 0° and less than 90° with respect to a normal line passing through a center of the casting cavity in a radial direction, and runners. A melt is injected from the gates into the casting cavity at angles ?1, ?2 and ?3 which are greater than 0° and less than 90° with respect to the normal lines, and is solidified.

Abstract: A concentrating solar power generation unit (10) comprises a solar cell element (1), a mounting plate (3) on which is mounted the solar cell element (1), which is bonded to a receiver (2), a light shield (4) that covers the mounting plate (3), a frame (5) disposed perpendicularly from the ends on two facing sides of a light shield (4), a concentrating lens (7) that is disposed corresponding to the upper end of the frame (5) across from the light shield (4) and that concentrates sunlight (Ls) on a light receiving region of the solar cell element (1), and a translucent substrate (6) that fixes (fastens) the concentrating lens (7) and is mounted to the upper end of the frame (5).

Abstract: A method of hydrothermally synthesizing sapphire single crystals doped with trivalent metal ions in a crystal-growth autoclave including a crystal-growth zone and nutrient-dissolution zone in fluid communication with the crystal-growth zone is provided. Implementations of the method including situating within the crystal-growth zone at least one sapphire-based seed crystal and situating within the nutrient-dissolution zone an aluminum-containing material to serve as nutrient. An acidic, trivalent-metal-ion-containing growth solution is introduced into the cavity in a quantity sufficient, at least when heated to a predetermined average temperature, to immerse the at least one seed crystal and the nutrient in the growth solution. The growth solution is selected such that sapphire exhibits retrograde solubility therein and the growth process is carried out while maintaining an interior-cavity pressure within a range between and including each of 3.

Abstract: A suggested welding crane for welding of objects comprises an arm, a stand and a welding head. The arm includes at least a first and a second segment, which are arranged with their length axes essentially parallelly and are telescopically movable along their length axes in relation to each other so that at least a first segment of said segments at least partly slides into at least a second segment of said segments. The welding head is arranged in a distal end of an outermost segment of the arm while an innermost segment of the arm is suspended in the stand. A linear guide is arranged on at least a first segment of said segments. A co-operating part of said at least one linear guide is arranged on at least a second segment of said segments, wherein the at least one linear guide is adapted to provide said telescopic movement.

Abstract: The present invention relates to corrosion resistance coatings suitable for elevated temperature applications, which employ compositions of iron (Fe), chromium (Cr), nickel (Ni) and/or aluminum (Al). The compositions may be configured to regulate the diffusion of metals between a coating and a substrate, which may then influence coating performance, via the formation of an inter-diffusion barrier layer. The inter-diffusion barrier layer may comprise a face-centered cubic phase.

Abstract: A hot-strip cooling device and a cooling method are provided wherein uniform cooling of a hot-rolled steel strip using coolant is possible from the leading end to the trailing end of the steel strip. A cooling device (10) includes a plurality of round nozzles (15) disposed obliquely in such a manner as to eject rod-like flows of coolant at an ejection angle ? toward the upstream side in a direction in which a steel strip (12) travels, and a pinch roll (11) disposed on the upstream side with respect to the round nozzles (15) and configured to pinch the steel strip (12) in combination with a roller table (8).

Abstract: A wire bonding method involves bonding a wire in order at a first bonding point and a second bonding point; raising a capillary, through which the wire is inserted, on the second bonding point; cutting the wire by closing a clamper provided above the capillary at a time when the capillary has reached a prescribed height; and measuring a load incurred on the wire at a time of cutting of the wire.