53results about How to "Reduce output loss" patented technology

The invention discloses a hollow sunlight transmission fiber, which comprises a hollow core layer, a reflecting film, a quartz covering layer, a polymer inner layer and a polymer outer layer sequentially from in to outside, wherein the reflectivity of the reflecting film to sunlight is 95-99 percent, the refractive index of the reflecting film is ranked between that of the hollow core layer and that of the quartz covering layer, the refractive index of the quartz covering layer is less than that of the polymer inner layer, and the refractive index of the polymer inner layer is less than that of the polymer outer layer; the quartz covering layer is a doped quartz covering layer doped with germanium, fluorin, boron, phosphorus or aluminum; the polymer inner layer is a fluoropolymer coating layer which is made of fluoric acrylic resin; the polymer outer layer is a hard polymer coating layer which is made of resin materials doped with carbon or metal impurities; and the hardness of the polymer inner layer is less than that of the polymer outer layer. Due to the design, not only is the output loss smaller and long-distance realized, but also the cost performance of lighting is higher, and the safety is better.

The invention relates to a vertically-distributed wind power station structure. In the invention, a wind power station mounting tower is built in an area with wind power, wherein the tower is composed of a tower strut body, tower hoisting buildings and tower girders, has a plurality of stories and is hundreds of meters high; the tower strut body is a polygon structure which is composed of load-bearing columns; the tower strut body is provided with the tower hoisting buildings and the tower girders which are distributed radially are built outwards on the tower strut body at certain intervals from bottom to top, wherein the tower girders are arranged above the tower hoisting buildings; the tower girders are used for mounting wind turbines of vertical axial-type wind driven generators; the tower hoisting buildings are used for mounting generators and other components of the wind driven generators; the wind driven generators are distributed on the tower in a three-dimensional way; the tower can be constructed independently or multiple towers can constructed in a combined way or constructed in lines and rows.

A back-contact heterojunction solar cell, having a first conductive type silicon substrate, a first amorphous semiconductor layer, a second amorphous semiconductor layer, a first conductive type semiconductor layer, a second conductive type semiconductor layer and a second conductive type doped region is introduced. The first amorphous semiconductor layer disposed on the illuminated surface of the silicon substrate is an intrinsic semiconductor layer or is of the first conductive type. The second amorphous semiconductor layer disposed on the non-illuminated surface of the silicon substrate is an intrinsic semiconductor layer. The first and the second conductive type semiconductor layers are disposed on the second amorphous semiconductor layer. The second conductive type doped region is located in the silicon substrate under the second conductive type semiconductor layer and is in contact with the second amorphous semiconductor layer.

A hydraulic shovel including a selection means for an engine which is capable of arbitrarily selecting either of an isochronous control and a droop control, and a traveling detection means for detecting the traveling state of a traveling device. The hydraulic shovel further includes a control means for the engine which selects the isochronous control when the traveling detection means detects the traveling state to maintain the rotational speed of the engine during rated operation while an output is increased, and selects the droop control when the traveling detection means does not detect the traveling state to set the rotational speed of the engine lower than that during the rated operation while the output is increased.

A phenolic-resin molding material contains a novolac-type phenolic resin, a hexamethylene tetramin, and an inorganic filler. A total content of a content of the novolac-type phenolic resin and a content of the hexamethylene tetramin is 20 to 55 mass % with respect to an entirety of the phenolic-resin molding material. A content of the inorganic filler is 45 to 80 mass % with respect to the entirety of the phenolic-resin molding material. A content of the hexamethylene tetramin is 17 to 26 pts.mass with respect to an entirety of the novolac-type phenolic resin.

A power adjustment system is provided with: a fuel cell that is connected to a load; a converter for the fuel cell, said converter being connected between the fuel cell and the load and converting theoutput voltage of the fuel cell at a prescribed requested voltage ratio; a battery that is connected to the load in parallel to the fuel cell and is a different power supply source from the fuel cell; an impedance measuring device that measures the impedance of the fuel cell by outputting an AC current between the positive electrode of the fuel cell and an intermediate point and between the intermediate point of the fuel cell and the negative electrode; a current bypass path that bypasses the converter for the fuel cell and links the fuel cell and the load; and a current cut-off unit that isprovided on the current bypass path and electrically cuts off the current bypass path when the impedance of the fuel cell is being measured by the impedance measuring device.

A light emitting device includes a support member, a light emitting element, and an underfill material. The support member includes an insulating member and positive and negative electrically conductive wirings arranged on the insulating member. The electrically conductive wirings are insulated and separated from each other by an insulating region arranged between the positive and negative electrically conductive wirings. The insulating separation region includes a first region disposed on an outer side with respect to the light emitting element and a second region disposed directly under the light emitting element. The first region includes an underfill arranging portion in which an interval between the electrically conductive wirings is wider than in the second region. The underfill material is arranged to extend from the underfill arranging portion to the second region in a space formed between the support member and the light emitting element.

The invention discloses a control method of a microwave cooking device, the control device of the microwave cooking device and the microwave cooking device. The microwave cooking device is provided with a frequency converter for controlling power output. The control method of the microwave cooking device comprises the following steps of: when the microwave cooking device performs heating work, obtaining the temperature of the frequency converter; and determining a temperature interval where the frequency converter is located according to the temperature of the frequency converter, and controlling the frequency converter to output heating power corresponding to the temperature interval to perform heating work so as to keep the temperature of the frequency converter below a first preset temperature value. The cooking performance of food materials is improved, and meanwhile the service life of the frequency converter is prolonged.

A vibration-type driving unit includes a vibrator including an electro-mechanical transducer; a moving body provided with the vibrator; a contact member in contact with the vibrator provided on the moving body; a support member configured to support the contact member; and a moving mechanism configured to move the moving body relative to the support member. The vibrator and the contact member are disposed so that the vibrator moves in a first direction relative to the contact member. The moving mechanism is configured to move the moving body relative to the support member in a second direction intersecting the first direction in a plane parallel to a plane in which the vibrator and the contact member are in contact with each other.

The invention provides an electrode of a heating device for a zone melting furnace, which relates to the technical field of electric heating, and solves the problems that the output efficiency of electrodes in the conventional heating device is low, and the security of a zone melting furnace is reduced since the arc discharge phenomenon is easy to generate among the electrodes. According to the electrode provided by the invention, an electrode insulating sleeve can electrically insulate a columnar body from a first lower electrode head, an electrode cylinder and a first electrode flange, a first electrode insulating sheet is arranged between the first lower electrode head and a second lower electrode head, and a second electrode insulating sheet is arranged between the first electrode flange and a second electrode flange, so that a first electrode and a second electrode can be electrically insulated from each other through a solid insulating material. Therefore, the electrode has a good insulating property and avoids the arc discharge phenomenon. Furthermore, the electrode cylinder is arranged inside the insulating sleeve, so that the electrode cylinder is insulated from the zone melting furnace. Therefore, the security of the zone melting furnace is improved, the output consumption of a high-frequency power source can be reduced to the greatest extent, and the output power of the high-frequency power source is improved. The electrode provided by the invention is mainly applied to the zone melting furnace for implementing purification and crystal growth of silicon materials.

An impeller for a fuel pump is molded by a molding material containing a phenolic resin and an inorganic filler. A content at a minimum spin-spin relaxation time is 70% or higher with respect to a whole when approximating a free induction decay curve, which is obtained by Solid Echo Method in a pulse NMR measurement at 90° C., with a sum of relaxation curves of three components. The content at the minimum spin-spin relaxation time corresponds to a content of a portion of the phenolic resin, which forms the impeller for the fuel pump, where a cross-linking reaction is caused. A swelling amount of the impeller due to a liquid containing a fuel and water decreases as a crosslink density of the phenolic resin increases. The swelling amount of the impeller in the present disclosure is smaller than the swelling amount of an impeller molded by PPS resin.

There is provided a power supply including a direct current (DC) to DC converter supplying main power to a load, and a sub converter connected to the DC to DC converter and reducing output loss, wherein the sub converter is operable based on a hold-up time.

Disclosed are a solar cell module and a method of fabricating the same. The solar cell module according to the embodiment includes first solar cells including a first P-type semiconductor layer, a first buffer layer, and a first N-type semiconductor layer sequentially disposed on a support substrate; second solar cells including a second N-type semiconductor layer, a second buffer layer, and a second N-type semiconductor layer sequentially disposed on the support substrate; and a connecting electrode connecting the first solar cells to the second solar cells.

The invention discloses a quasi-phase-matching terahertz wave parametric oscillator, which includes a pump source, a first period inversion GaP crystal, a second period inversion GaP crystal, a third period inversion GaP crystal, and a fourth period inversion GaP crystal, and the reflection mirrors arranged around the GaP crystal of the first period inversion, the GaP crystal of the second period inversion, the GaP crystal of the third period inversion and the GaP crystal of the fourth period inversion, the reflection mirror includes the first reflection mirror, A second reflector, a third reflector, a fourth reflector, a fifth reflector, a sixth reflector, a seventh reflector, an eighth reflector, a ninth reflector, and a tenth reflector. The generated Stokes light oscillates back and forth in the ring resonator, which can effectively amplify the THz wave through the optical parametric effect; the collinear interaction between the pump light and the Stokes light effectively increases the interaction volume between the pump light, the Stokes light and the THz wave.