211results about How to "Strict requirements" patented technology

An alignment system uses a self-referencing interferometer that produces two overlapping and relatively rotated images of an alignment markers. Detectors detect intensities in a pupil plane where Fourier transforms of the images are caused to interfere. The positional information is derived from the phase difference between diffraction orders of the two images which manifests as intensity variations in the interfered orders. Asymmetry can also be measured by measuring intensities at two positions either side of a diffraction order.

Provided is an emissions treatment system for an exhaust stream, having a NOx storage reduction (NSR) catalyst with a NOx sorbent at a concentration of at least 0.1 g / in3 and a platinum group metal component dispersed on a refractory metal oxide support; and, an SCR catalyst disposed downstream of the NSR catalyst. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

An electrical busway system comprising a busway uniquely configured for cutting to length in the field. Special connector devices are also disclosed, with features for engaging and immobilizing busway insulators to assure accurate initial alignment of conductors and contact elements prior to joining of connector devices with busway sections. An accessory device, specially adapted to the new busway design, includes a rotatable contact element, slideably received in its rotatable support, which progressively displaces a spring as the contact element is rotated into contact with a busbar carried by a busway insulator. Good electrical contact at both ends of the slideable contact element is assured. The accessory device also includes a positioning element which is rotatable with, but rotationally advanced with respect to, the contact elements, to accurately position, and substantially immobilize an insulator element prior to the contact elements being rotated into restricted, busbar-receiving recesses in the insulator element.

A TDD antenna array S-CDMA system for increasing the capacity and quality of a wireless communications is disclosed. By simultaneous exploiting the spatial and code diversities, high performance communications between a plurality of remote terminals and a base station is achieved without sacrificing system flexibility and robustness. The time-division-duplex mode together with the inherent interference immunity of S-CDMA signals allow the spatial diversity to be exploited using simple and robust beamforming rather than demanding nulling. Measurements from an array of receiving antennas at the base station are utilized to estimate spatial signatures, timing offsets, transmission powers and other propagation parameters associated with a plurality of S-CDMA terminals. Such information is then used for system synchronization, downlink beamforming, as well as handoff management. In an examplary embodiment, the aforementioned processing is accomplished with minimum computations, thereby allowing the disclosed system to be applicable to a rapidly varying environment. Among many other inherent benefits of the present invention are large capacity and power efficiency, strong interference / fading resistance, robustness power control, and easy hand-off.

The ends of carbon plates reinforcing supporting elements, such as concrete beams, are divided into at least two splines having approximately the same thickness and are glued in the appropriate retaining slots of a terminal element. The splines form an angle in relation to each other. This assembly is then glued to the traction side of the supporting element, whereby the carbon plates are directly prestressed by the terminal elements in relation to the supporting element. The terminal element can be inserted into an appropriate groove in the supporting element or glued directly on the surface of the supporting element and / or doweled, optionally by using a transverse tensioning device.

A light emitting device having a circuit protection unit is provided. The circuit protection unit has a low-resistance layer and a potential barrier layer, wherein a barrier potential exists at the interface between the low-resistance layer and the potential barrier layer. The circuit protection unit is electrically connected with the light emitting device. When an electrostatic discharge or excessive forward current is occurred in the light emitting device, the circuit protection unit provides a rectifying function for preventing damages caused by static electricity or excessive forward current to the light emitting device.

A munitions energy system combines various sources of energy generation with energy storage to provide power to a munition through various stages of the munition's operation. The system uses energy harvesting technologies which convert energy captured from the environment of the munition to electrical power which can be used to meet the munition's power needs. Energy can be harvested from the mechanical, thermal, and electromagnetic environment of the munition. The harvested energy can be stored by the system for later use. The system can also receive energy from conventional sources such as batteries and manage the energy from all sources to meet the power requirements of the munition.

A vehicle motor-generator apparatus based on a field winding type of synchronous machine coupled to a power inverter and a battery, wherein the synchronous machine is controlled to operate as a motor to perform engine starting and thereafter be driven by the engine as an electrical generator, wherein during a short time interval at the commencement of engine starting, the armature winding of the synchronous machine is driven by a current such that magnetic flux is produced by the armature winding acting in the same direction as magnetic flux produced by the field winding, to thereby achieve increased torque during the time when maximum torque is required. In addition, the supplied field current is set at a maximum value during only an initial period when engine starting begins, until the first compression stroke of the engine has been completed, and thereafter set to a reduced value until the completion of engine starting, thereby reducing the amount temperature rise within the field winding during engine starting, while ensuring a sufficiently high value of initial torque.

The present invention discloses a spectral measurement method via continuous light source and discrete light source, and a measurement instrument for non-invasive detection of human body tissue components. Said instrument includes an incident unit, a probe, a receiving unit and a data processing unit. Said composite spectral measurement method improves or strengthens the output light intensity at the wavelength that carries information of the target component within human body. It enables the spectral detection in the whole wavelength range, and thus significantly enhances the SNR of the detecting system. In the non-invasive detection instrument, light from both the continuous light source and discrete light source can be firstly selectively light-split by AOTF, or AOTF conducts light-splitting for the continuous light source, while the discrete light source LD is controlled by a spatial chopper. When data of the spectral curves achieved from said continuous light source and discrete light source are processed, data acquired under different measuring modes can be compared.

Provided is an emissions treatment system for an exhaust stream, having a NOx storage reduction (NSR) catalyst with a NOx sorbent at a concentration of at least 0.1 g / in3 and a platinum group metal component dispersed on a refractory metal oxide support; and, an SCR catalyst disposed downstream of the NSR catalyst. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

Brush ware comprising at least one carrier and bristles made from a moldable plastic material disposed thereon, is produced by providing the carrier with through holes acting like spinning nozzles, to which bristle-shaped molding channels join and a plastic melt for the bristles is injected from at least one side of the carrier—the feed side of the melt—through the holes into the channels thereby forming the bristles, wherein the through holes have a minimal width along at least a portion of their length which is ≦3 mm and the ratio between this width and the flow path of the melt resulting from the depth of the through holes plus the length of the channels is ≦1:5. A device for carrying out the method and brush ware produced in accordance with the method is also described.

The present invention relates to a process for the manufacture of short or discontinuous lignocellulosic fibre in combination with synthetic fibre filled thermoplastic composites, in which the process consists of preferably, defiberization and dispersion of the cellulosic fibres in the thermoplastic matrix, further consolidation and dispersion of the blended thermoplastic composition, further blending of the same with inorganic fibres to get the moldable thermoplastic composition and further injection or compression or compression injection molded under high pressure ranging from 100 tones to 1000 tones and a temperature range from 170 to 210 degree centigrade into composite products. The said composites have a tensile strength of at least 75 MPa and a flexural strength of at least 125 MPa. The invention also relates to the use of the said composites in automotive, aerospace, furniture and other structural applications.

The present invention relates to a process for the manufacture of composite materials having lignocellulosic fibres dispersed in a thermoplastic matrix, while generally maintaining an average fibre length not below 0.2 mm. The process comprises defibrillation of the lignocellulosic fibres using a mixer and at a temperature less than the decomposition temperature of the fibres in order to separate the fibres and generate microfibres, crofÊbres, followed by dispersion of the fibres in the thermoplastic matrix by mechanical mixing to get the moldable thermoplastic composition, followed by injection, compression, extrusion or compression injection molding of said composition. The process produces high performance composite materials having a tensile strength not less than about 55 MPa, a flexural strength not less than about 80 MPa, a stiffness not less than about 2 GPa, notched impact strength not less than about 20 J / m, and un-notched impact strength not less than about 100 J / m. The composite materials of the present invention are well-suited for use in automotive, aerospace, electronic, furniture, sports articles, upholstery and other structural applications.

The invention discloses a stainless steel plate band and producing method of middle chromic inclusion copper ferrite, which comprises the following parts (in mass fraction): Cíœ0. 05, Níœ0. 05, Siíœ1. 0, Mníœ1. 0, Píœ0. 05, Síœ0. 02, Cr 16-20, Cu 0. 6-2. 5, Niíœ2. 0, Moíœ2. 0, Tiíœ0. 50, Nbíœ0. 50, 0íœrare-earth elementíœ0. 1%, 0íœother elementsíœ0. 1% (others for balance Fe and inescapable foreign matter), wherein the method is characterizes by the following: containing the producing method of smelting, continuous casting, hot-rolling, annealing, acid cleaning and cold reducing; adopting conticaster of electromagnetic mixing (heating-up temperature of hot-rolled is 1000-1100deg. c, the temperature of final rolling is 800-900deg. c); annealing and keeping temperature for 10 hours in reduction condition at 700-900deg. c; cooling quickly to 600deg. c at lower 50deg. c / hr; . cooling air.

A robust integer carrier frequency offset estimation method for OFDM systems is disclosed. Compared with conventional methods which use either two consecutive OFDM symbols or only one training symbol, the method is insensitive to the timing offset as long as the channel spread is shorter than the OFDM cyclic prefix length. Most importantly, it does not require any information on the scrambling code used in systems such as STiMi. The method improves the accuracy of integer carrier frequency offset, especially in channels with long and strong echoes. It offers the receiver more freedom in setting the FFT window since it is insensitive to the timing offset.

In a variable frequency oscillator in a semiconductor device, as the variation of an oscillation frequency caused by the variation of temperature and supply voltage and process variation is large, it is difficult to reduce the conversion ratio of control voltage dependent upon phase noise and the oscillation frequency and therefore, phase noise is large. The variation of the oscillation frequency is suppressed and phase noise is reduced by connecting a voltage-to-current conversion circuit that converts input control voltage to control current of a ring oscillator to the ring oscillator where delay circuits a delay time of which increases and decreases according to the amplitude of input control current are cascade-connected by a plurality of stages in a ring and increasing / decreasing current dependent upon any of temperature, supply voltage and the threshold voltage of a transistor inside the voltage-to-current conversion circuit.

The invention provides a manufacturing method of a nuclear nickel-base high-temperature alloy GH 4145 wire and belongs to the technical field of high-temperature alloy wire machining. The method includes the steps that after being blended according to the mass percent, raw materials are subjected to vacuum induction and vacuum consumption duplex smelting and cast into an alloy ingot; the alloy ingot is homogenized so as to be forged into an alloy ingot blank, and the alloy ingot blank is then subjected to flaw detection and finishing and hot-rolled into a wire rod with the diameter phi ranging from 8 mm to 12 mm; the wire rod is subjected to solution treatment and is rounded, peeled and coated with a film; drawing and annealing are performed sequentially, the wire rod is pulled into the alloy wire with the required diameter, and the GH 4145 alloy wire is obtained. By the adoption of the nuclear nickel-base high-temperature alloy wire, the whole process is free of acid pickling, the special nuclear requirement is met, and meanwhile the finished wire is high in size accuracy, good in surface quality, even in component and structure and excellent in mechanical performance and processing performance. The method can be widely applied to the machining field of the nuclear nickel-base high-temperature alloy wire.

The invention relates to a data storage medium storing data material having a data replay order, the stored data material being associated with dummy data material stored on the medium at a different position in the data replay order, in which metadata identifying the data material is encoded as a watermark in the dummy data material.

In a variable frequency oscillator in a semiconductor device, as the variation of an oscillation frequency caused by the variation of temperature and supply voltage and process variation is large, it is difficult to reduce the conversion ratio of control voltage dependent upon phase noise and the oscillation frequency and therefore, phase noise is large. The variation of the oscillation frequency is suppressed and phase noise is reduced by connecting a voltage-to-current conversion circuit that converts input control voltage to control current of a ring oscillator to the ring oscillator where delay circuits a delay time of which increases and decreases according to the amplitude of input control current are cascade-connected by a plurality of stages in a ring and increasing / decreasing current dependent upon any of temperature, supply voltage and the threshold voltage of a transistor inside the voltage-to-current conversion circuit.

A process of producing sulfuric acid from feed gases containing 0.1-30% SO2. The process produces concentrated sulfuric acid from a feed gas containing 0.1 vol % to 30 vol % SO2, in particular a strong feed gas containing 6 vol % to 30 vol % SO2, that enables the gas entering the final wet condensing stage to have an acid dew point of below 260° C., while at the same time achieving current requirements of acid mist emissions of about 20 ppmv without resorting to substantial air dilution of the strong feed gas.

A metal valve stem seal and sealing system includes a valve body, a metal valve stem housed within the valve body, a bonnet member housed within the valve body, and a U-shaped metal stem gasket positioned between the metal valve stem and the bonnet member. The gasket has a first lip member and a second lip member. The metal valve stem seal and sealing system also includes a metal wedge ring fitted between the first and second lip members and at least one metal energizing spring adjacent the wedge ring. The spring applies a sufficient force to the wedge ring to cause the wedge ring to apply a sufficient contact pressure to the first and second lip members to form a seal between the gasket and the metal valve stem and to form a seal between the gasket and the bonnet member.

The invention belongs to the technical field of cross-media retrieval, and particularly relates to a fine-grained freehand sketch image retrieval method based on attention enhancement. According to the deep fine-grained freehand sketch image retrieval FG-SBIR model, different attention mechanisms are used to further pay attention to fine-grained details between a sketch and an image. The new modelnot only pays attention to correlation information between a sketch mode and an image mode, but also pays attention to distinctiveness information in a single mode. According to the invention, a mutual loss method is provided to enhance the traditional triple loss and improve the discrimination capability of the model on the fine-grained characteristics in a single mode. For a given query sketch,related images with fine-grained instance-level similarity in a specific category can be returned, and the strict requirement for instance-level retrieval of fine-grained freehand sketch image retrieval is met.

The invention discloses a method for preparing nuclear power-grade high-purity boracic acid, and belongs to the technical field of chemical industry. The method is characterized by comprising the following steps of: dissolving industrial boracic acid serving as raw materials in a solvent, adding aids, reacting for a certain period of time, and evaporating and crystallizing; mixing the dried intermediate product and reactants, heating and stirring to react for a certain period of time, performing azeotropic distillation, and mixing the obtained distillate and water; and after full reaction, evaporating and crystallizing to obtain products, washing and drying to prepare the nuclear power-grade high-purity boracic acid. The whole process is simple and easily controlled without environmental pollution; and obvious competitive advantages and profit margins in manufacturing cost, product performance and other aspects are shown. The purity of the prepared boracic acid is 99.9999 percent, the impurity content is below 1ppm, the strict requirement of the nuclear industry is met, and special requirements on the boracic acid in the fields of nuclear power industry, optical materials, crystalline materials and other high technology can be met.

The invention relates to a method of controlling a wind turbine (WT) by means of a wind turbine control system (WTCS) comprising a first controller (C1) and a second controller (C2), said controlling of said wind turbine (WT) comprising handling a first set of control functionalities (CF1-CFx) and a second set of control functionalities (CCF1-CCFx), wherein said first set of control functionalities (CF1-CFx) are non-critical control functionalities, wherein said second set of control functionalities (CCF1-CCFx) comprises one or more critical control functionalities (CCF1-CCFx) which are critical for the operation of said wind turbine (WT), wherein said first controller (C1) handles said first set of control functionalities (CF1-CFx), wherein said second controller (C2) is a safety controller controlling said wind turbine during emergency shutdown of said wind turbine (WT) by means of said critical control functionalities (CCF1-CCFx), and wherein said second controller (C2) furthermore controls one or more of said critical control functionalities to provide an output to control said wind turbine (WT) when the wind turbine (WT) is in a power production mode. The invention furthermore relates to a system, a controller and a wind turbine.

The invention discloses a smoothening softener composition for smoothening and softening finishing of cotton and its blended yarns, a preparation method thereof and an application thereof. The smoothening softener composition comprises 2-30wt% of wax, 1-20wt% of an emulsifier, 0-3wt% of a pH value adjusting agent, 0-15wt% of an aliphatic derivative softener and 55-90wt% of water, wherein the total weight of the smoothening softener composition is treated as a reference. By adopting the smoothening softener to carry out the smoothening and softening finishing, the yarns have good feels, the strengths of the yarns are effectively protected, and the finished yarns have excellent weaving performances.

The present invention discloses a spectral measurement method via continuous light source and discrete light source, and a measurement instrument for non-invasive detection of human body tissue components. Said instrument includes an incident unit, a probe, a receiving unit and a data processing unit. Said composite spectral measurement method improves or strengthens the output light intensity at the wavelength that carries information of the target component within human body. It enables the spectral detection in the whole wavelength range, and thus significantly enhances the SNR of the detecting system. In the non-invasive detection instrument, light from both the continuous light source and discrete light source can be firstly selectively light-split by AOTF, or AOTF conducts light-splitting for the continuous light source, while the discrete light source LD is controlled by a spatial chopper. When data of the spectral curves achieved from said continuous light source and discrete light source are processed, data acquired under different measuring modes can be compared.

A latching arrangement for detachably mounting a device on a DIN rail. A support member configured to be mounted on the DIN rail. A guiding slot configured on a same side of the device on which the support member is configured. An engaging lug received in the guiding slot and adapted to move between an engaging, extended configuration and a retracted, disengaging configuration. An urging element cooperating with the engaging lug and the device, the urging element adapted to be configured between a first operative configuration in which the urging element urges the engagement lug towards the support member and a second operative configuration in which said urging element is moved to facilitate moving of the engaging lug away from said support member.

The invention discloses a preparation method of collagen fiber for artificial hair and is characterized in that collagen fiber (or gelatin) is mixed with polyvinyl alcohol, and a certain amount of monofunctional epoxy compound used as crosslinker is added to obtain spinning stock solution with a certain concentration and viscosity; nascent fiber can be obtained from the stock solution by wet spinning; the fiber is cross-linkingly treated by aldehydes and the aqueous solution of metals ion to obtain wig protein fiber. The fiber number of the wig protein fiber is 30-120dtex, and the breaking strength is 1.5-3.0cN / dtex.

A light emitting device having a circuit protection unit is provided. The circuit protection unit has a low-resistance layer and a potential barrier layer, wherein a barrier potential exists at the interface between the low-resistance layer and the potential barrier layer. The circuit protection unit is electrically connected with the light emitting device. When an electrostatic discharge or excessive forward current is occurred in the light emitting device, the circuit protection unit provides a rectifying function for preventing damages caused by static electricity or excessive forward current to the light emitting device.

Signal processing for a receiver, such as a radio receiver within a cellular telephone, includes providing frequency conversion, preferentially passing a desired signal following the conversion, and introducing both phase-based filtering and equalization to the band-filtered signal. In one embodiment, the band filtering is provided by a low pass filter and the compensation occurs following operations by a polyphase filter, which implements the phase-based filtering. In many applications, the frequency conversion is a down conversion to either a zero intermediate frequency or a low intermediate frequency. The low pass filter reduces out-of-band interference and blocking signal strength, but may introduce phase-related distortions. The polyphase filtering and equalization cooperate to control the phase-related distortions.