Abstract: A method of manufacturing a solar cell includes the steps of: providing a substrate having a front side, a back side and a doped region; forming a conductor layer on the front side; firing the conductor layer at a temperature such that the conductor layer is formed with a first portion embedded into the doped region and a second portion other than the first portion; forming an anti-reflection coating (ARC) layer on the front side and the second portion, wherein the ARC layer covers the conductor layer so that the second portion of the conductor layer is disposed in the ARC layer; and removing the ARC layer on the conductor layer so that the conductor layer has an exposed surface exposed out of the ARC layer, wherein the exposed surface of the conductor layer is substantially flush with a first exposed surface of the ARC layer.

Abstract: Embodiments of the invention provide methods and apparatus for a handling system and attachment of a secondary elevator, and/or other complementary equipment, to a primary elevator. In one embodiment, a casing elevator is provided. The casing elevator includes a body, two first load-rated lift members coupled to a perimeter of the body at a first location on the body, and two second load-rated lift members coupled to the perimeter of the body at a second location on the body, the second location being different than the first location.

Abstract: Building-integrated photovoltaic devices can be provided, which function as sensors, wherein the output parameters from the device are used to provide information about light intensity and ambient temperature, in addition to providing power, to an intelligent building energy management system.

Abstract: A position adjustment mechanism for grinding wheels includes a rotating body, a first grinding unit, a second grinding unit, and a fixing nut. The rotating body includes a fixing surface and a first thread portion. The first grinding unit includes a first grinding portion and a fixing portion fixedly engaged with the fixing surface. The second grinding unit includes a second thread portion, which is threadedly engaged with the first thread portion of the rotating body, and a second grinding portion which is spaced from the first grinding portion and which has a different grinding precision from that of the first grinding portion. The fixing nut is threadedly engaged with the first thread portion, and presses axially against the second grinding unit. Thereby, a rough grinding and a fine grinding can be accomplished together within a grinding process, and adjustment on a spacing between the two grinding wheels becomes easy.

Abstract: A method of manufacturing a solar cell comprises the steps of: forming a lower conductor layer on a front side of a substrate; firing the lower conductor layer at a first temperature to form a first portion embedded into a doped region of the substrate and a second portion; forming an anti-reflection coating (ARC) layer on the front side and the second portion, wherein the ARC layer covers the lower conductor layer such that the second portion is disposed in the ARC layer; forming an upper conductor layer, corresponding to the lower conductor layer and electrically connected to the lower conductor layer, on the ARC layer; and firing the upper conductor layer at a second temperature to form a first portion embedded into the ARC layer and a second portion, which is exposed out of the ARC layer.

Abstract: A method and an apparatus for continuous real time heating value/coal flow balancing of coal from a coal feeder to a burner. The apparatus includes a Dual-energy Gamma Attenuation (DGA)/Multi-energy Gamma Attenuation (MGA) device for measuring coal quality at a specific location between the coal silo/bunker and the coal feeder in a coal fired plant in order to control the individual burner stoichiometries according to the measured coal quality. By strategically placing the DGA/MGA device, continuous accurate real-time coal quality information is accomplished for making individual adjustments in order to improve stoichiometry to optimize performance of the system.

Abstract: Disclosed is a vehicle including a tractor having a lower tractor duct that receives air from the front of the tractor and channels the air through a center area of the tractor and down between a set of rear wheels, a trailer having a lower trailer duct positioned below a cargo space that channels the air in the lower trailer duct between each set of trailer rear wheels and a lower articulation duct positioned near the set of tractor rear wheels that receives air from the lower tractor duct and communicates air to the lower trailer duct. An upper duct channels air through ductwork at the top of the trailer and tractor. A rear trailer louver system enables air in each duct to be channeled and pulled out of each respective duct, reducing drag and eddy currents using the vacuum at the rear of the trailer.

Abstract: Disclosed is a vehicle including a tractor having a lower tractor duct that receives air from the front of the tractor and channels the air through a center area of the tractor and down between a set of rear wheels, a trailer having a lower trailer duct positioned below a cargo space that channels the air in the lower trailer duct between each set of trailer rear wheels and a lower articulation duct positioned near the set of tractor rear wheels that receives air from the lower tractor duct and communicates air to the lower trailer duct. An upper duct channels air through ductwork at the top of the trailer and tractor. A rear trailer louver system enables air in each duct to be channeled and pulled out of each respective duct, reducing drag and eddy currents using the vacuum at the rear of the trailer.

Abstract: Embodiments of the invention provide methods and apparatus for a handling system and attachment of a secondary elevator, and/or other complementary equipment, to a primary elevator. In one embodiment, a casing elevator is provided. The casing elevator includes a body, two first load-rated lift members coupled to a perimeter of the body at a first location on the body, and two second load-rated lift members coupled to the perimeter of the body at a second location on the body, the second location being different than the first location.

Abstract: The present invention relates to an apparatus for inhibiting scale formation and microorganism growth within a moving water system, with the apparatus including: (i) a pulse-power assembly having a fly-back pulse generator circuit effective to produce a current pulse that when terminated yields a voltage spike and generates a plurality of frequencies of energy, where the fly-back pulse generator circuit comprises a coil as an integral portion of the fly-back pulse generator circuit; and (ii) a chamber for passing water from the moving water system therethrough, where the coil is wound around the chamber so as to transmit the plurality of frequencies of energy into the chamber in order to inhibit scale formation and microorganism growth within the moving water system. Water treatment systems and methods of using the apparatus are also provided.

Abstract: The present invention relates to rotary motors in which the rotational motion of the motor is provided by the attractive (or repulsive) forces between a pair of cooperating magnets in response to tilting of the motor axle.

Abstract: A lighting fixture, such as a recessed or can type lighting fixture, has an external housing containing a number of LEDs used to provide light. The LEDs are connected to a power supply, and are mounted on a heat sink that includes heat-dissipating fins that are oriented vertically within a vertical portion of an internal flow tube. The internal flow tube may be U-shaped, with entry and exit points on opposite ends of the flow tube. The external housing and flow tube are oriented so as to create a path for air to rise along the heat sink as it is heated then flow back down along the unheated path of the flow tube. An air mover may also be placed in the flow tube to provide further air flow through the flow tube.

Abstract: An electrode anchoring structure in a crystal-growing furnace includes at least one graphite electrode pillar, at least one metal electrode pillar, at least one anchoring base, and at least one locking nut, wherein the graphite electrode pillar is engaged with a nut base of the metal electrode pillar, and the at least one metal electrode pillar is, through the anchoring base, is secured to furnace wall. Therefore, the at least one graphite electrode pillar acts both as weight support and electrical-conducting electrode. Since the flange welded on furnace wall has a greater area exposed to the atmosphere, a desirable cooling effect can be achieved, and temperature drop can be expedited if water spray is performed. The anchoring base is provided with a resilient washer, such that a resilient force can be employed to adjust loading of each graphite electrode pillar in an axial direction.

Abstract: A light unit that includes an internal power supply that may be used in the event of an external power failure to provide power to the light unit. In one aspect, the present disclosure provides a lighting apparatus, comprising (a) a power input configured to receive external power from an external power source; (b) a solid state light element that is interconnected to the power input; (c) a detection circuit interconnected to the power input and that, when power is not provided to the power input, measures input impedance at the power input and determines if there is a lack of external power; and (d) a back-up power source that is interconnected to the solid state light element and the power input and that provides power to the solid state light element when the light element is; not provided with power from the power input.

Abstract: Disclosed is a tractor-trailer including a tractor having a lower tractor duct that receives first air from a front of the tractor and channels the first air through a center area of the tractor and down between a set of rear wheels, a trailer having a lower trailer duct positioned below a cargo space and that channels the first air in the lower trailer duct between each set of trailer rear wheels and a lower articulation duct positioned near the set of rear wheels in the tractor that receives air from the lower tractor duct and communicates air to the lower trailer duct. An upper duct is also provided with an articulation duct that channels air through a ductwork at the top of the trailer and tractor. A louver system at the rear of the trailer enables the air in each duct to be channeled and pulled out of the respective duct in such a manner as to reduce drag and eddy currents using the vacuum at the rear of the trailer.

Abstract: An adapter plate is provided that fits an existing luminaire in place of an existing globe that mounts to the luminaire. A heat sink mates to the adapter plate and also houses a solid state light engine and associated electronics. The heat sink may provide an enclosed, protective volume for the associated electronics, such as a power supply for the solid state light engine. A globe mounting ring attached to the heat sink allows either an existing globe to be re-mounted or a new globe to be installed.

Abstract: A solar cell includes a substrate, a conductor layer and an anti-reflection coating (ARC) layer. The substrate has a front side, a back side and a doped region adjacent to the front side. The conductor layer has a first portion embedded into the doped region and a second portion other than the first portion. The ARC layer has first and second exposed surfaces, first and second side surfaces and a bottom surface. The first side surface is connected to the first and second exposed surfaces. The second side surface is connected to the second exposed surface and the bottom surface disposed on the front side. The second portion is disposed in the ARC layer. The conductor layer has an exposed surface, which is exposed out of the ARC layer, and higher than the second exposed surface and substantially flush with an exposed surface of the ARC layer.

Abstract: A solar cell includes a substrate, a lower conductor layer, an anti-reflection coating (ARC) layer and an upper conductor layer. The substrate has a front side, a back side and a doped region adjacent to the front side. The lower conductor layer has a first portion embedded into the doped region and a second portion other than the first portion. The ARC layer is disposed on the front side of the substrate and covers the lower conductor layer such that the second portion of the lower conductor layer is disposed in the ARC layer. The upper conductor layer has a first portion embedded into the ARC layer and a second portion other than the first portion of the upper conductor layer. The second portion of the upper conductor layer is exposed out of the ARC layer, and the upper conductor layer is electrically connected to the lower conductor layer.

Abstract: A position adjustment mechanism for grinding wheels includes a rotating body, a first grinding unit, a second grinding unit, and a fixing nut. The rotating body includes a fixing surface and a first thread portion. The first grinding unit includes a first grinding portion and a fixing portion fixedly engaged with the fixing surface. The second grinding unit includes a second thread portion, which is threadedly engaged with the first thread portion of the rotating body, and a second grinding portion which is spaced from the first grinding portion and which has a different grinding precision from that of the first grinding portion. The fixing nut is threadedly engaged with the first thread portion, and presses axially against the second grinding unit. Thereby, a rough grinding and a fine grinding can be accomplished together within a grinding process, and adjustment on a spacing between the two grinding wheels becomes easy.