38results about How to "Impact cost" patented technology

An electronic assembly includes a substrate (66), a balun transformer (42) formed on the substrate (66) and including a first winding (50) and a second winding (52), each having respective first and second ends, and a reaction circuit component (48) formed on the substrate (66) and electrically coupled to the second winding (52) between the first and second ends thereof. The balun transformer (42) and the reaction circuit component (48) jointly form a harmonically suppressed balun transformer having a fundamental frequency, and the reaction circuit component (48) is tuned such that the harmonically suppressed balun transformer resonates at a selected harmonic of the fundamental frequency.

A pickup processing system for a guitar or other musical instrument. According to one embodiment, a split pickup is employed that separates the sound from the two bass strings from the other four strings. The signal from the bass strings may be provided to an octave divider, which creates a bass sound to add back into the sound. The octave divider produces sound without discontinuities or other artifacts. Other effects include restored acoustical properties of the guitar body, stereo imaging, reverb and others. The present invention may be fully contained within the body of an acoustic guitar.

A system and method are provided for calibrating an interleaved digital-to-analog converter (DAC). Sets of sub-DACs are enabled, and by creating a high frequency fundamental signal, spurs can be driven down sufficiently low in frequency to be sampled and digitally converted. By minimizing the power of these digital signals, the duty cycles of the different clock phases are calibrated. Then, sets of sub-DACs are enabled and high pass filtered, so that the spurs can be downconverted using corresponding phases of the clock, to a frequency low enough to sampled and digitally converted. The power of the digital signals is minimized as a first step in phase calibration. As a final step, all the sub-DACs are enabled, the high pass filter removed, and a high frequency fundamental signal is downconverted using at least two clock phases, so that the phase difference can be measured and corrected.

Systems and methods to mitigate surge conditions in a compressor of a vehicle fuel cell system. A first surge mitigation strategy regulates a cathode backpressure valve, if the compressor is operating at or above a threshold speed. A second surge mitigation strategy regulates a recirculation valve if the compressor is operating below the threshold speed. In one form, a feedback-based control may be used as part of a larger feedforward-based control strategy such that the mitigation is part of a reactive control strategy. The strategy may additionally be implemented in a processor-based controller.

The invention relates to the battery manufacture and energy storage field, concretely relates to a method for preparing all-vanadium ion redox flow battery (vanadium battery) electrolyte with high density and good stability, which is used for solving the problems of low concentration and poor stability of vanadium battery electrolyte existed in the prior art. The all-vanadium ion redox flow battery electrolyte takes vanadium sulfate, organic acid and water as raw materials, the concentration of vanadium sulfate in the electrolyte is 3mol/L, the concentration of organic acid in the electrolyte is 0.5mol/L-3.5mol/L; wherein organic acid is taken as supporting electrolyte for providing H<+>, and water is taken as a solvent. The method for preparing all-vanadium ion redox flow battery electrolyte has the advantages of simple process, easy operation and easy raw material acquisition, so that vanadium battery electrolyte with high density and good stability can be obtained; the electrolyte has good electrochemical reversibility and high conductivity, and is capable of realizing charge and discharge of battery.

The invention discloses a bottle cap component and a container bottle with the bottle cap component. The bottle cap component comprises a bottle cap body, the bottle cap body is provided with a top wall and a side wall, the bottle cap component further comprises a blocking sheet and an impaling piece, the blocking sheet is arranged in the bottle cap body, a containing cavity capable of containing additives is defined by the blocking sheet, the side wall and the top wall, a through hole is formed in the top wall, internal threads are arranged on the inner wall of the through hole, the impaling piece penetrates through the through hole to enter the containing cavity, external threads matched with the internal threads are arranged on the peripheral surface of the impaling piece, and an impaling portion is arranged at the lower end of the impaling piece. Before the bottle cap component is used, the additives are separated from solvents in the container bottle. When the bottle cap component needs to be used, the impaling piece is rotated and moves downwards relative to the bottle cap body, the blocking sheet is punctured by the impaling portion at the lower end of the impaling piece, and therefore the additives enter the solvents through the broken blocking sheet. Therefore, through the bottle cap component, the problems that when chemical additives are added, product flavor is influenced, cost is increased and health is harmed are avoided.

Improved processes for extracting polyhydroxyalkanoate from a biomass containing the polyhydroxyalkanoate including the steps of: combining the biomass containing the polyhydroxyalkanoate with a solvent selected from lower chain ketones, and mixtures thereof to form a biomass liquor wherein the biomass liquor comprises less than about 25% water; mixing the biomass liquor for from about 10 to about 300 minutes at a temperature in the range of from about 70° C. to about 120° C.; separating the polyhydroxyalkanoate from the biomass liquor to form a PHA-enriched liquor, wherein the separating occurs at a temperature of at least about 40° C.; mixing the PHA-enriched liquor with water to form precipitated polyhydroxyalkanoate and an impure solvent liquor, wherein the water is mixed with the PHA enriched liquor in the ratio of from at least about 0.4-1 parts of water to one part solvent; and recovering the precipitated polyhydroxyalkanoate from the impure solvent liquor. Optional treatment with oxidizing agents or mild surfactant or mild bleach is used to enhance color and odor.

Processes for the extraction of PHAs from biomass, said processes comprising: combining the biomass containing the PHAs with a single main solvent to form a biomass liquor; heating the biomass liquor to at least partially solubilize the PHAs from the biomass to form a PHA liquor; separating the biomass from the PHA liquor to form a PHA-enriched liquor; evaporating from 0% to about 50% of the single main solvent from the PHA-enriched liquor to form a solvent vapor and a concentrated PHA-enriched liquor; and cooling the concentrated PHA-enriched liquor to form precipitated PHAs and an impure solvent liquor. Optionally, further recovering the precipitated PHAs from the impure solvent liquor by filtration under pressure. A PHA-enriched liquor and a concentrated PHA-enriched liquor.

The invention discloses a method for an electronic detonator communication bus arbitration protocol, and provides a hardware circuit design scheme required for realizing the method, so that a manual registration process before blasting operation is omitted. The bus arbitration method has the characteristics of low bus signal change frequency, and stable reliability, and is suitable for non-polar connection, and namely, arbitration can be achieved no matter what polarity of bus voltage is. According to the hardware circuit design scheme, the influence of distribution parameters like line resistance on current and voltage is fully considered, and the hardware circuit design scheme has very high adaptability. The problems that existing electronic detonator network communication needs manual registration and is poor in reliability are solved.

A method of configuring a metamaterial structure comprising a plurality of electrical resonators (110) that support magnetoinductive waves is disclosed. The method comprises: powering at least one of the electrical resonators (110) with an alternating current at an excitation frequency, the at least one powered electrical resonator providing a source of magnetoinductive waves in the structure; adjusting parameters of the metamaterial structure to create constructive interference of one- two- or three-dimensional magnetoinductive waves at one or more target resonators of the electrical resonators (110), to improve power transfer from the at least one powered electrical resonator to the one or more target resonators (110).

The invention relates to a bar-type tap switch installation structure and method for an embedded wind power photovoltaic box type transformer. A box cover fixture is arranged under the box cover of the wind power photovoltaic box type transformer. The position of the box cover fixture is corresponding to the switch fixture of a bar-type tap switch. The method comprises the steps that the installation position of the bar-type tap switch under the box cover is determined; a fixture is welded at a position corresponding to the bar-type tap switch fixture under the box cover, and a limit device is welded in the box cover fixture; a traction rope is fastened on the bearing of the bar-type tap switch; when the bar-type tap switch is installed, the traction rope is pulled to the direction of the box cover; the positioning hole of the bar-type tap switch and the circle center of the limit device reserved on the box cover are located in the same level; and the installation parts of the bar-type tap switch are installed. According to the invention, the popularization of the bar-type tap switch in all types of transformers is realized; the structure is compact and simple; the assembly of each process is convenient; the working efficiency is high; the volume of the transformer is reduced; and the manufacturing cost is reduced.

Substantially dry mixture having solid-containing complex carbohydrate and a water-soluble pharmaceutical auxiliary is dispersible in water. The dry mixture can also contain simple sugar and starch. A dispersible, or soluble, mixture having solid-containing complex carbohydrate, originated or derived from a processed plant, and processes of preparation of the mixture. The processed plant can be Aloe vera.

A valve comprising a valve cap, a valve body and a diaphragm positioned between the valve cap and the valve body. The valve further has a plurality of plungers movable, by an actuation system, between a closed position where the plunger engages the diaphragm, and an open position where the plunger is disengaged from the diaphragm. Each plunger comprises a base section connected to the actuation system and having a head projecting away therefrom; a top section extending between the base section and the diaphragm, the top section having a foot in contact with the head of the base section; and a biasing mechanism biasing the top section away from the diaphragm when the plunger is in the open position. Tangential contact points may also be provided between components of the actuation and the biasing mechanism for preventing a misalignment of the actuation system within the valve body.

The invention provides a method for preparing nucleosides of nicotinic acid or derivatives thereof, nicotinic acid adenine dinucleotide and nicotinic acid mononucleotide, an enzyme composition and application. The method for preparing the nucleosides of the nicotinic acid or the derivatives thereof comprises the step of carrying out reaction by using 5'-nucleotidase and mononucleotide of the nicotinic acid or the derivatives thereof or salt of the mononucleotide as a substrate, wherein the amino acid sequence of the 5'-nucleotidase is shown as SEQ ID NO.1. Compared with a chemical synthesis method, the method is safer and more reliable, and is more environment-friendly because the use of an organic solvent can be avoided. Nicotinamide nucleoside can be more effectively produced so as to meet increasing demands.

Disclosed are ice making machines which use aluminum as an alternative to copper in the ice making machine evaporator and also use an alternate coolant/refrigerant specifically targeted to provide improved heat transfer transport properties and higher heat capacitance than conventional HFC coolantlrefrigerants. Optionally, rotary compressors are used in place of conventional reciprocating compressors, further enhancing performance for the ice making machine. The disclosed ice making machines maintain high efficiency and ice output and provide equal or better energy efficiency than comparative ice making machines. At the same time, savings are realized in the material cost for the evaporator, and resulting from the combined effects of lower density and lower metal cost/unit weight offered by aluminum as compared to copper.

The invention relates to the field of hydraulic engineering channel engineering construction, in particular to construction of a channel slope toe concrete key wall. The construction method mainly comprises the process steps of arranging a positioning device, driving a steel sheet pile, excavating earthwork, pouring key wall concrete, pulling out the steel sheet pile, treating the inside of a concrete key wall top closing surface, constructing a slope structure and the like. According to the novel channel slope toe concrete key wall construction method, for an excavated or half-filled and half-excavated channel, when the height of the slope toe concrete key wall is larger than 0.8 m and the soil quality is poor so a key wall pit groove needs to be excavated in a sloping mode, the defects that according to an existing construction method, excessive earthwork overbreak exists, overbreak backfill sinks, the stability of the slope structure is affected, and the construction cost is high are overcome, and slope toe concrete key wall structure construction on the premise of no overbreak is achieved.

The invention discloses full-penetration polished ceramic tiles and a preparation method thereof. The full-penetration polished ceramic tiles are mainly prepared from the following components in partsby weight: 22 to 42 parts of ball clay, 12 to 18 parts of soda feldspar, 5 to 12 parts of ground quartz, 8 to 15 parts of wollastonite, 4 to 7 parts of water milled potassium feldspar powder, 1 to 4parts of sodium silicate, 0.4 to 0.8 part of water reducing agent, 0.3 to 0.6 part of blank enhancing agent and 44 to 70 parts of de-ionized water. The preparation method comprises the following steps: preparing raw materials, carrying out ball milling, spraying and granulating, punching and molding, calcining and polishing. According to the full-penetration polished ceramic tiles prepared by thepreparation method, the problems of traditional polished tiles that the surface level, stereoscopic performance and stone-imitating effect are fuzzy and unclear are solved; application of ultra-penetration materials is researched and developed so that the stone-imitating effect is more vivid; meanwhile, the full-penetration polished ceramic tiles have relatively good anti-penetration performance and color and luster; the preparation method is simple and is suitable for industrial production.

The invention provides a device and a method for simulating formation pressure and belongs to the fields of oil fields, mines and the like. The device comprises a simulating shaft (5), a formation core simulating module (6), a formation fluid simulating module (7), a formation pressure simulating module (10) and a data processing and controlling module (9). By utilizing the device, formations with different lithological characters and different permeability rates and the formation pressure can be simulated indoors, an indoor experiment of a formation pressure measuring short joint while drilling can be performed, and the formation pressure measuring work process of the formation pressure measuring short joint while drilling can be simulated on the ground to verify testing accuracy of the measuring short joint. The device can serve as a testing platform of the formation pressure measuring short joint while drilling and a developing platform of a formation pressure measuring control algorithm while drilling. The device for simulating the formation pressure solves the problems that device moving and operational maintenance are inconvenient, well drilling progress is affected, well drilling cost is increased and the like when the experiment of the formation pressure measuring short joint while drilling in a well drilling field is performed, experiment difficulty is reduced, and the economic benefit is improved.

The invention relates to a synchronous clutch (10) for switchably coupling an auxiliary unit to an engine, in particular an internal combustion engine. The invention relates to a clutch comprising a sliding sleeve (12), an output-side clutch body (14) having clutch body teeth which can be engaged with internal teeth of the sliding sleeve (12), and a synchronization unit. A pre-tensioning device (128) presses the clutch into the closed position in a normal state. An actuator may disconnect the clutch. The sliding sleeve teeth and/or the clutch body teeth are wedge-shaped.

The invention belongs to the technical field of image communication, and particularly relates to a fast link main/standby switching distributed system and method based on load sharing. The system comprises a distributed sending end node, a distributed receiving end node, network switching equipment and a service management node. In the system, each sending end node and each receiving end node can realize multi-link backup; the service data of each node is subjected to load sharing among multiple working links, so that the system flow multiplication cannot be caused, and the system cost and the stability cannot be influenced; and meanwhile, when the link on the node fails, the data layer of the node automatically realizes the balance of the service data on each available link without participation of the service layer, so that the rapid and seamless service data switching requirement is met, and the influence of audio and video service link switching on the sense of people is reduced.

The invention discloses a liquid storage antibacterial material and a preparation method thereof as well as a liquid storage antibacterial cup. The preparation method disclosed by the invention comprises the following steps: firstly, preparing an antibacterial agent into master batch; then adding the master batch into plastic and extruding and molding. According to the preparation method disclosedby the invention, the antibacterial agent and a plastic base material are prepared into the high-concentration antibacterial master batch and then the antibacterial master batch and the plastic are mixed and melted and then are subjected to injection molding on a plastic injection molding machine to prepare antibacterial plastic; the antibacterial agent is uniformly dispersed in a final product and has good dispersity; the problem that the dispersity of the antibacterial agent is poor, caused by a direction adding method, can be avoided; a production technology of an antibacterial plastic product is also optimized; furthermore, the antibacterial performance of the product is improved.