41results about How to "Reduce excitation" patented technology

An object is to provide a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. Other objects are to provide a light-emitting element having low driving voltage, a light-emitting element having high current efficiency, and a light-emitting element having a long lifetime. Provided are a light-emitting element including a compound in which a dibenzo[f,h]quinoxaline ring and a hole-transport skeleton are bonded through an arylene group, and a light-emitting device, an electronic device, and a lighting device each using this light-emitting element. The heterocyclic compound represented by General Formula (G1) below is provided.

Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, A represents any of a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted carbazolyl group, R¹¹ to R¹⁹ separately represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 14 carbon atoms, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.

Provided is a light-emitting module, a light source device and a liquid crystal display device in which unevenness in the luminance and color hardly occurs as compared to conventional technology. A light-emitting module 100 is structured such that a plurality of element columns, each composed of light-emitting elements 120 arranged in line, are mounted on a substrate 110, and each element column is individually sealed by a separate sealing member 130. The light source device and the liquid crystal device each include the above light-emitting module 100.

Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, A represents any of a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted carbazolyl group, R¹¹ to R¹⁹ separately represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.

Provided is a high density plasma chemical vapor deposition (HDP-CVD) apparatus that includes a plurality of nozzles and/or injection pipes arranged for injecting a source gas mixture into a reaction chamber. The nozzles will each include an outlet region that includes a plurality of outlet channels or ports, the outlet channels are, in turn, configured to have a sufficiently small width and a sufficient length to suppress the formation of a plasma within the source gases passing through the respective nozzles. By suppressing the formation of a plasma within the nozzles, the thickness of deposits formed on the nozzles during the deposition processes can be maintained at a level generally no greater than deposits formed on the other chamber surfaces. This control of the deposit thickness allows the nozzles to be cleaned effectively by the same cleaning process applied to the chamber.

The present invention teaches novel methods of diagnosing and prognosing conditions associated with tissue degeneration and/or pain, including intervertebral disc degeneration, discogenic pain, osteoarthritis, rheumatoid arthritis, and articular cartilage injury. Using the inventive noninvasive imaging methods, the diagnosis and prognosis of back pain and related conditions can be quickly and accurately determined by detecting one or more biomarkers disclosed herein.

The invention discloses a preparation method of PbSxSe1-x ternary nanocrystal. The method disclosed by the invention comprises the following steps of: mixing selenium powder and sulfur powder according to a certain proportion, slowly adding alkylamine which has long chain and has boiling point more than 180 DEG C, sufficiently stirring, heating (the selenium powder and the sulfur powder) amine mixed liquor into 180-260 DEG C, forming into settled solution at constant temperature, and adding the alkylamine which is dissolved with lead chloride and has the long chain and the boiling point more than 180 DEG C, so that a system is naturally cooled into room temperature after being sufficiently reacted, adding 10mL of chloroform into the system, and adding ethanol of which the volume is twice as high as the volume of the reaction solution into the reaction system, so that PbSxSe1-x ternary nanocrystal particle precipitate is separated out, therefore, the PbSxSe1-x ternary nanocrystal particle can be obtained.

The invention discloses an array type meter header based on an NV color center and a temperature sensing device. Key components including NV color center diamond particles, an excitation light path, adetection light path, microwave feed and the like in a meter head of the temperature sensing device are integrally designed. An array type gauge outfit is formed by matching of an optical fiber bundle and diamond particles, and finally, the NV color center temperature measuring device with high spatial resolution and high measuring sensitivity is formed by the array type gauge outfit and each keysubsystem. The invention belongs to the field of fusion intersection of a quantum temperature measurement technology and an optical fiber array technology, greatly reduces the size of an NV color center temperature sensing device, improves the integration degree and measurement reliability of a gauge outfit, and expands the application of an NV color center related technology in the fields of thermal imaging and the like.

The invention provides a liquid crystal display device which comprises a liquid crystal panel. The liquid crystal panel comprises a quantum dot layer and a liquid crystal layer arranged below the quantum dot layer. The liquid crystal display device also comprises a backlight module arranged below the liquid crystal layer and a glass substrate arranged above the quantum dot layer; the backlight module comprises a backlight source and other optical assemblies; the glass substrate comprises a coloring material and a common glass material; the coloring material is used for blocking light rays, thewavelengths of which are smaller than 420nm, in environmental light; and the ratio of the coloring material and the common glass material is between 0.04 and 0.2. According to the liquid crystal display device provided by the invention, under the circumference of irradiation by the environmental light, the liquid crystal panel can filter ultraviolet light and part of blue rays in the environmental light, and is high in pass rate for light rays of other wavelengths. The whole display picture still has relatively high contrast and color purity, and the caused energy loss is small.

A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of the light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1)

DBq-(Ar¹)-_n-Ar²-A   (G1)

in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group and a substituted or unsubstituted benzobisbenzofuranyl group are bonded to each other via a substituted or unsubstituted arylene group. In the general formula (G1), DBq represents a substituted or unsubstituted dibenzo [f,h] quinoxalinyl group, Ar¹ represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, n represents 0 or 1, Ar² represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and A represents a substituted or unsubstituted benzobisbenzofuranyl group. When the arylene group represented by Ar¹ and Ar² has substituents, the substituents may be bonded to each other to form a ring.

A flyback switch power supply connects N_P1 heteronymous terminals in a transformer B to a power source, grounds second primary side winding N_P2 heteronymous ends, and ensures that N_P1 and N_P2 are dual-wire parallel windings. Adding a capacitor C1, one end of C1 is connected to N_P1 homonymous terminals, and the other end is connected to N_P2 homonymous terminals. The secondary side winding uses a Q2 connection method that is the opposite to the prior art, and is controlled by a PWM signal controlled by another output voltage. The following effect is realized: when Q1 is connected, N_P1 and N_P2 are both excited, and there is artificial surplus energy; when Q1 is disconnected, the secondary side N_S implements a rectified output voltage via Q2 on the basis of the output load requirements, and the leakage inductance and excess energy are non-destructively absorbed by N_P2 via D1.

The invention relates to a method for determining a coupling state (128a - 138a) of a drive train (2) of a motor vehicle (1) coupled to a clutch (4) on an internal combustion engine (112). Said methodcomprises the following steps: detecting the temporal course of a rotational speed (n) correlated to the rotational speed (nBKM) of the internal combustion engine (112); detecting at least one speedpattern (128 -138), produced by the internal combustion engine (112), from the temporal course of the rotational speed (nBKM), that has an oscillation (O) with at least one amplitude (A) superimposedover the temporal course of the mean value (DMD) of the rotational speed (nBKM), then it is closed in a coupling state (128a - 138a) when within a time interval ([delta]t), a characteristic change ofthe rotational speed (nBKM) and a characteristic behavior of the amplitudes (A) is detected. Furthermore, the invention relates to a corresponding computing unit (118) which is configured to carry outthe method, to an electric machine comprising the computing unit and to a corresponding computer program for carrying out said method.

The invention concerns a velocity control method for electric drives, in particular for machine tool control systems, wherein impact on the gear unit and machine caused by acceleration is restricted. To this end, control data are read in blocks, and predetermined nominal speeds (Vsoll) are approached as upper speed limits which are to be retained as far as possible, and local speed limits are approached in the form of target speeds (Vziel) at specific target points (Z4), looking ahead (Z'1, Z'3) within the framework of the look-ahead system with slight acceleration changes within the framework of the maximum permissible jolt. An acceleration limit which is independent of the speed can therefore be left at a constant high maximum value.

The invention discloses an improved light guiding plate and a production method thereof, belonging to the technical field of light guiding plates. The improved light guiding plate contains the following raw materials in parts by weight: 99.5-99.9 parts of polystyrene, 0.05-0.1 part of an antioxidant, 0.05-0.2 part of an ultraviolet light absorber and 0.05-0.3 part of a light stabilizer. Compared with the prior art, the improved light guiding plate has the advantages that by adding the yellowing-resistant, anti-UV and high-temperature-resistance antioxidant, the ultraviolet light absorber, thelight stabilizer and the like, the yellowing speed of PS is effectively delayed, so that the service life of a product is prolonged.

In a method and magnetic resonance (MR) apparatus for different degrees of excitation of two different nuclear spin types with Larmor frequencies that are shifted relative to one another during recording of MR data by execution of an MR sequence, an excitation pulse sequence with at least two consecutive excitation pulses with defined time intervals for the exclusive excitation of the first spin type, and an additional pulse sequence with at least one additional pulse that acts at least on the second spin type, are used. A total pulse sequence formed by superimposition of the two pulse sequences is emitted within an excitation period of the MR sequence.

The invention relates to a three-phase switched reluctance motor system based on a quasi-Z-source modular converter. A quasi-Z-source modular converter of the system is composed of a front-end quasi-Z-source circuit and four groups of power conversion units connected in parallel, and a phase stator winding of a three-phase switched reluctance motor is connected among the four groups of power conversion units; the converter can realize four operation modes, namely a direct-through mode, a non-direct-through excitation mode, a non-direct-through zero-voltage follow current mode and a non-direct-through demagnetization mode. The bus voltage can be adjusted by changing the direct-through duty ratio of the quasi-Z-source modular converter, the change range of the DC bus voltage is greatly expanded, and thus the wide-range speed regulation of the motor can be realized. And meanwhile, the bus voltage is increased, so that the excitation and demagnetization processes can be accelerated, and the torque pulsation is reduced. The three-phase switched reluctance motor system is high in integration level, high in power density, high in reliability and adjustable in DC bus voltage.

In an arrangement of a running roller on a coupling journal of a coupling half of a moveable shaft coupling, a radial rolling bearing, the inner ring of which is connected to the coupling journal by a ball joint, is inserted into the running roller. In order to maintain an additional degree of freedom for the relative movements of the coupling journal in relation to the complementary coupling half in the directions perpendicular to the central axis of the latter, either the running face of the running roller is configured cylindrically or the rolling bearing is configured as a loose bearing.