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A solar array power generation system includes a solar array electrically connected to a control system. The solar array has a plurality of solar modules, each module having at least one DC / DC converter for converting the raw panel output to an optimized high voltage, low current output. In a further embodiment, each DC / DC converter requires a signal to enable power output of the solar modules.

Disclosed are oxygen-scavenging polymer compositions having high transparency and low haze comprising immiscible blends of at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol, a copolyamide or a transamidized, homogeneous blend of a least two polyamides, and a metal catalyst. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about −0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. The blends of the present invention are useful in producing shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties.

An electron beam as a curing technique with dynamic beam control technology in order to produce arbitrarily shaped parts. The result of this is equipment which can create prototypes and parts rapidly without additional tooling. The electron beam from a low divergence gun is accelerated towards uncured monomer in vacuum. Deflection of the beam combined with a grid which is used to turn the beam on and off, creates a two dimensional curing path with a depth of approximately five (5) thousandths of inch. Successive layers of this type, built up as monomer is added, creates a three dimensional pattern. The layers can either be of uniform thickness, or can be varied in thickness by varying the energy of the beam.

A fuel cell stack includes a stack body formed by stacking a plurality of power generation cells in a stacking direction. At one end of the stack body, first and second dummy cells are provided. At the other of the stack body, third and fourth dummy cells are provided. Each of the first to fourth dummy cells includes a first metal separator and a second metal separator. The first metal separator and a first metal separator of the power generation cell have substantially the same shape. The second metal separator and a second metal separator of the power generation cell have substantially the same shape.

The invention relates to a heat shield arrangement for a hot gas (m)-guiding component, which comprises a number of heat shield elements arranged side-by-side on a supporting structure while leaving a gap there between. A heat shield element can be mounted on the supporting structure whereby forming an interior space which is delimited in areas by a hot gas wall to be cooled, with an inlet channel for admitting a coolant into the interior space. According to the invention, a coolant discharge channel is provided for the controlled discharge of coolant from the interior space and, from the interior space, leads into the gap. Coolant can be saved and efficiently used by the specific coolant discharge via the coolant discharge channel, and reduction in pollutant emissions can also be achieved. The heat shield arrangement is particularly suited for linking a combustion chamber of a gas turbine.

A self-cleaning filter system is disclosed that includes an inlet fitting that is adapted to be inserted into an existing filter body. A spray tube having a plurality of outlets that slideably engages the inlet fitting, is positioned in the ring discs of the existing filter and a compression member proximate to one end of the ring discs applies a compressive force to the ring discs. When fluid enters the spray tube from the inlet fitting compression on the ring discs is reduced to allow the ring discs to separate while fluid pressure is simultaneously imposed on the ring discs through a plurality of outlets to clean the filter component. The parts included with the system may be used to convert a manual filter into a self-cleaning filter system.

An all-weather maintenance system for an offshore wind turbine maintenance program includes a maintenance capsule for transporting tools, parts and maintenance personnel to and from respective wind turbine towers, a maintenance vessel with a capsule support apparatus for transporting capsules supported on board by the capsule support apparatus to and from respective wind turbine towers, and a crane assembly with a trolley for transporting capsules between the respective wind turbine towers and the maintenance vessel.

High temperature solid oxide fuel cells (SOFC) and fuel cell stacks incorporating metallic bipolar separators with integral edge seals are provided. The electrochemical cells include reactant manifolds and flow passages, and may have either cathode or anode supported structures. The bipolar separators are thin metallic sheets that minimize thermal expansion stress in the electrochemical cells. The tubular bead edge seals are formed as an integral part of the bipolar separator by a low-cost sheet metal stamping process.

A self-cleaning filter system is disclosed that includes an inlet fitting that is adapted to be inserted into an existing filter body. A spray tube having a plurality of outlets that slideably engages the inlet fitting, is positioned in the ring discs of the existing filter and a compression member proximate to one end of the ring discs applies a compressive force to the ring discs. When fluid enters the spray tube from the inlet fitting compression on the ring discs is reduced to allow the ring discs to separate while fluid pressure is simultaneously imposed on the ring discs through a plurality of outlets to clean the filter component. The parts included with the system may be used to convert a manual filter into a self-cleaning filter system.

A movable belt conveyor system for a leach pad for use for sulfidic copper ore, where favorable conditions are to be generated for leaching out the copper by a slight compaction of the ore piled up into a dump for the microbiological leaching technology. The movable belt conveyor system of a length of up to several km is composed of a plurality of smaller belt segments, comprising a tail segment (70), standard segments (711-n) and a head segment (72), as well as a traveling tripper (8). To prevent the loading by these individual components from being excessively compacted by the weight of the device during multiple travel over the dump during the moving process, the belt drives with the driving drum are accommodated in the tail element (70), which is supported on the soil next to the leach pad. In addition, the traveling tripper (8) is designed as an independent unit with the belt drums, additional belt drives and the belt-tensioning means, which unit is autarchically displaceable on a caterpillar-type moving gear (85) of its own. Due to the moving of the belt on the caterpillar-type moving gears of the standard segments (711-n), on the head segment (72) and on the traveling tripper (8) as well as due to the absorption of the weight of the tail segment (70) by the transfer carriage (6), the surface pressure acting locally on the dump is reduced and the compaction of the ore on the dump due to being traveled over by the belt conveyor system remains low. Traveling over with a moving device, which frequently happens with the use of a moving caterpillar, is eliminated.

The invention relates to a heat shield arrangement for a hot gas (m)-guiding component, which comprises a number of heat shield elements arranged side-by-side on a supporting structure while leaving a gap there between. A heat shield element can be mounted on the supporting structure whereby forming an interior space which is delimited in areas by a hot gas wall to be cooled, with an inlet channel for admitting a coolant into the interior space. According to the invention, a coolant discharge channel is provided for the controlled discharge of coolant from the interior space and, from the interior space, leads into the gap. Coolant can be saved and efficiently used by the specific coolant discharge via the coolant discharge channel, and reduction in pollutant emissions can also be achieved. The heat shield arrangement is particularly suited for linking a combustion chamber of a gas turbine.

The invention relates to a drill thread milling cutter (1) for producing a bore and for the subsequent milling of a thread in the bore, said drill thread milling cutter (1) having a working region (2), on the circumference (3) of which a number of drilling and milling cutting edges are arranged. A number of milling cutting edges (7, 8, 9, 10) greater than the number of drilling cutting edges (17) by a factor greater than 2 are arranged or are effective in the direction of rotation.

A movable belt conveyor system for a leach pad for use for sulfidic copper ore, where favorable conditions are to be generated for leaching out the copper by a slight compaction of the ore piled up into a dump for the microbiological leaching technology. The movable belt conveyor system of a length of up to several km is composed of a plurality of smaller belt segments, comprising a tail segment (70), standard segments (711-n) and a head segment (72), as well as a traveling tripper (8). To prevent the loading by these individual components from being excessively compacted by the weight of the device during multiple travel over the dump during the moving process, the belt drives with the driving drum are accommodated in the tail element (70), which is supported on the soil next to the leach pad. In addition, the traveling tripper (8) is designed as an independent unit with the belt drums, additional belt drives and the belt-tensioning means, which unit is autarchically displaceable on a caterpillar-type moving gear (85) of its own. Due to the moving of the belt on the caterpillar-type moving gears of the standard segments (711-n), on the head segment (72) and on the traveling tripper (8) as well as due to the absorption of the weight of the tail segment (70) by the transfer carriage (6), the surface pressure acting locally on the dump is reduced and the compaction of the ore on the dump due to being traveled over by the belt conveyor system remains low. Traveling over with a moving device, which frequently happens with the use of a moving caterpillar, is eliminated.

The invention pertains to a process for preventing the freezing of water in a structural component containing at least one moving part in the anode cycle of a fuel cell system, characterized by the fact that at the time of a switching-off process the structural component is scavenged by a dry scavenging gas in order to remove a quantity of water present there.

A battery pack (2) for an associated hand-held electric machine tool (1) and for an associated charging device (13) including an analog temperature sensor (3) with a negative temperature coefficient and a temperature measuring interface (4) accessible from the outside. Battery protection electronics (5) arranged in the hand-held electric machine tool (1) and in the charging device (13), which have a battery protection logic (6) and a power switch (8) that is arranged in the circuit path (7) of the battery pack (2) can be influenced. The battery pack (2) is provided with an emergency protection circuit (10), which is connected in parallel with the analog temperature sensor (3) and which, in emergency situations, can actively reduce the total resistance (R) measurable from the outside via the temperature measuring interface (4).

The present invention relates to delivery of digital content of a content provider 110 to a user 160. The invention is based on the idea to utilize user presence information of a user in the delivery mechanism of digital content to the user. The operation of delivering digital content is separated in two co-operating services, a content service of a content provider 110 and a delivery service of a delivery provider 120. The content service utilizes the delivery service for accomplishing delivery of the digital content to a specific receiving user. Either the request to the delivery service to deliver the digital content, or the attempt by the delivery service to deliver the content, is made in dependence on user presence information indicating the availability of the user for receiving the digital content.

The present invention provides a resembling prismatic structure of light guide plate to economize the optical films such as prismatic film, diffusion film, reflection film and . . . etc. The present invention simplifies the multifarious structures of the prior LCD backlight modules. It can efficiently decrease the material of making the backlight module and the cost of the manufacturing time. In comparison with that conventional LCD backlight module emits light wholly, continuously and evenly from light emitting face of light guiding plate. Large amount of energy is wasted in the conventional backlight module owing to its illumination on the opaque part of LCD substrate such as common electrode and black matrix. As the resembling prismatic structure of the light guide plate of the present invention make light emit from specified positions, and be limited to small angle and pointing to each corresponding opening of LCD substrate, energy can be used efficiently; brightness can be raised; display quality can be promoted; electricity energy consumption can be lowered down, and life of battery can be postponed.

Utilization of mine methane produced by mining a non-combustible ore, such as trona, as an energy source for heat, steam, and / or power generation. Such utilization is beneficial for a surface appliance which is close to surface outlet(s) of mine methane recovery system(s). A method for reducing greenhouse gas emissions generated during mining of a non-combustible ore uses the combustion of co-produced mine methane. The mine methane is recovered in a mine ventilation air exhaust with very low methane content and may be additionally recovered in a drainage gas, such as gob gas, with much higher methane content. The surface appliance may be selected from the group consisting of calciner, dryer, boiler, kiln, furnace, engine, turbine, power generation unit, co-generation unit, and any combinations thereof. Benefits may include reduction in energy purchases, reduction in greenhouse emissions, and / or gain through sale of carbon credits to the carbon market by registering carbon reductions.

Disclosed is a high-density polyethylene (HDPE) composition that comprises at least a first high density polyethylene component having a density of 0.940-0.968 g / cm3 and a melt index I2.16 of 0.5-10.0 dg / min and a melt flow ratio (flow index I21.6 at 190° C. divided by melt index I2.16 at 190° C.) of at least 25. A second HDPE component may be included in the composition with melt index I2.16 of greater than 10 dg / min and melt flow ratio of 30 or less. The disclosed compositions are suitable for use in living hinge closure applications.

An integrated power control device and method are provided. In one embodiment, a device includes a body, a plurality of sockets for connection with a load, and a plurality of switch-controls each connected with corresponding one of the sockets and controlling power connecting to the load. The device further includes a microprocessor for the input, output, calculation and control of data and information flow, wherein the microprocessor issues commands to the switch-controls to execute switch on or off on the sockets, a timer, and a data storage unit for data storage so as to provide the microprocessor to access the data. A voltage-and-current detector detects voltage and current values and stores them into the data storage through the microprocessor. A voltage-current alerting unit receives the voltage values and current values and informs the microprocessor when the values exceed predetermined thresholds. Finally, a power computational unit calculates power consumption of the load.

A highly basic particle flux for submerged arc welding that produces less than 7 ml / 100 gr of diffusible hydrogen in the weld metal, which flux comprises a carbon dioxide containing compound with an effective amount of heat releasable carbon dioxide in the range of 0.5-3.5% by weight of the flux over 10% by weight of a low melting point compound and a binder.

A material to be treated containing solid particles in a liquid is stirred together with milling media, and irradiated with ultrasonic waves during stirring to finely mill the solid particles to nanometer size and disperse the solid particles in the liquid. The ultrasonic waves create cavitation in the liquid and upon decay of the cavitation, shock waves are produced that cause the solid particles to vigorously collide with one another and with the milling media and these collisions, together with the shearing forces created by collision of the milling media, can produce on a commercial scale nano particles having an average particle size of at most 100 nm.

An integrated power control device and method are provided. In one embodiment, a device includes a body, a plurality of sockets for connection with a load, and a plurality of switch-controls each connected with corresponding one of the sockets and controlling power connecting to the load. The device further includes a microprocessor for the input, output, calculation and control of data and information flow, wherein the microprocessor issues commands to the switch-controls to execute switch on or off on the sockets, a timer, and a data storage unit for data storage so as to provide the microprocessor to access the data. A voltage-and-current detector detects voltage and current values and stores them into the data storage through the microprocessor. A voltage-current alerting unit receives the voltage values and current values and informs the microprocessor when the values exceed predetermined thresholds. Finally, a power computational unit calculates power consumption of the load.

The invention relates to an air movement system comprising a centrifugal fan unit, wherein the centrifugal fan unit comprises a centrifugal fan coupled to a drive unit, a control unit operationally coupled to said drive unit, an inlet piece forming a inlet duct to the centrifugal fan, which inlet duct has an end facing the centrifugal fan, and an outlet duct, wherein the inlet piece is provided with a first pressure tap and a second pressure tap, the second pressure tap being positioned at distance from the end of the inlet duct facing the centrifugal fan, and the control unit is configured to measure a pressure difference between the first and second pressure tap and to control the centrifugal fan in dependence of the measured pressure difference, characterized in that the first pressure tap is positioned at the end of the inlet duct facing the fan, and in that said control unit is adapted to maintain a set airflow rate out of said outlet duct based on said measured pressure difference via controlling of the rotational speed of said centrifugal fan.

A system for producing and distributing compressed air that comprises at least one compressor (1) having connected thereto a suction pipe (2) for the intake of air and an output pipe (3) for air compressed by the at least one compressor, and distribution piping (4) connected to the output pipe (3) for distributing air to sites of use (5, 6). The system further comprises a return pipe (7) arranged between the suction pipe (2) and at least one site of use (5) for receiving air reduced in pressure in it and feeding it back to the at least one compressor (1).

A high through-put high efficiency system for extracting, extruding, purifying, mixing, or otherwise preparing known, new, useful or potable elements from substances where such system employs controllable pressure and temperature. The invention further provides an apparatus (30) for producing aerated consumable fluid at a selectable temperature. The invention employs a porous filter (44) of pre-selected porosity to foam hot or cold fluid commingled with a pressurized gas.