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270results about How to "Improve preservation" patented technology

Dense oil reservoir under injection well treatment method

ActiveCN105602540AImprove preservationGuarantee long-term stable productionFluid removalDrilling compositionLong actingInjection well
The invention provides a dense oil reservoir under injection well treatment method. The method comprises a prevention means and a treatment means. According to the prevention means, sulfate ions in injection water are removed with the nanofiltration de-sulfation technique, a decompression and augmented injection agent is added into the injection water, and the situation that reservoir permeability is reduced due to hydration expansion and particle migration of clay is prevented. According to the treatment means, a multi-hydrogen chelation acid liquor system is added into the injection water, measure augmented injection is conducted, pressurization of an under injection well is conducted by means of a ground pressurization system, and a long-acting augmented injection agent is added at the same time to improve in-place permeability. According to the method, under injection well treatment is conducted in terms of prevention and treatment according to the characteristics of the oil reservoir of a certain oil field and the high-pressure under injection mechanism, and the method has important significance in increasing the formation pressure preservation level and guaranteeing long-term stable production of the oil reservoir and solves the problems of velocity sensitivity and water sensitivity of minerals in the reservoir.
Owner:PETROCHINA CO LTD

System for measuring electromagnetic compatibility based on geographic information system and programmable attenuator

The invention discloses a system for measuring the electromagnetic compatibility based on a geographic information system and a programmable attenuator. Transmitted signals are received through a direct injection method, interference signals are obtained after programmable attenuation is conducted, measurement and playing back are conducted, output signals are illuminated onto a receiving device through a direct injection method or an all-directional transmitting antenna radiated transmission method, and then the electromagnetic compatibility judgment is conducted. According to the system, the simulation result of a real interference signal, the simulation result of the receiving device and the simulation result of an electromagnetic compatible and coupling path are combined so that the electromagnetic compatibility of the receiving device and a transmitting device can be evaluated, the result is closer to the real condition, and the accuracy is higher. The system is suitable for narrow bandwidth attenuation, but key interference frequency points can be measured in a segmented mode, the measurement method is simple and easy to operate, and the measurement efficiency is improved. Measurement data can be displayed through an instrument such as a GIS playback system and a spectrum analyzer. The measurement can be conveniently conducted, and the data are visualized.
Owner:BEIHANG UNIV

Seasoning oyster juice powder and preparation method thereof

The invention relates to seasoning and provides seasoning oyster juice powder which has the characteristic of intense oyster fragrance and wide application range and is convenient to transport and preserve, and a preparation method thereof. The seasoning oyster juice powder comprises the following raw materials in mass ratio: concentrated oyster juice 100, maltodextrin 12-14, white granulated sugar 5.5-7.5, common salt 3-7, monosodium glutamate 3-5, glucose 2.5-3.5, starch 2.5-3.5, yeast extracts 0.3-0.5 and disodium 5'-ribonucleotides 0.2-0.4. The preparation method comprises the following steps of: firstly preparing the oyster juice; filtering the oyster juice to obtain oyster juice filtrate; concentrating the oyster juice filtrate to obtain concentrated oyster juice liquid; adding the sugar and the common salt and heating for reaction; adding the monosodium glutamate and the disodium 5'-ribonucleotides into reaction feed liquid, heating, melting and flavoring; then, adding the predissolved maltodextrin and the starch and curing; regulating the concentration of the feed liquid with water to obtain flavoring oyster juice feed liquid; sterilizing and homogenizing the flavoring oyster juice feed liquid to obtain spray feed liquid; drying the feed liquid; collecting materials in a clean room to obtain the oyster juice powder; and sieving, packing and inspecting the oyster juice powder.
Owner:XIAMEN DOINGCOM BIOTECH

Ready-to-eat flavored fish skin and preparation method thereof

The invention provides ready-to-eat flavored fish skin and a preparation method thereof. The preparation method comprises the following technology steps: (1) macerating fish skin in wine: adding an edible alcohol solution of which the mass is 20-40% as much as the mass of the fish skin and of which the volume concentration is 60-90% to pretreated fish skin; uniformly stirring the pretreated fish skin and the edible alcohol solution so as to obtain a mixture; and placing the mixture in a sealing manner at a room temperature for 30-60 minutes, and then draining the edible alcohol solution so as to obtain wine-macerated fish skin; (2) preserving the wine-macerated fish skin: adding preserving materials to the wine-macerated fish skin obtained in the step (1), and uniformly stirring the preserving materials and the wine-macerated fish skin so as to obtain a new mixture; and preserving the new mixture in a sealing manner at the temperature of 4-15 DEG C for 4-12 hours so as to obtain preserved fish skin; (3) baking the preserved fish skin: baking the preserved fish skin obtained in the step (2) at the temperature of 50-70 DEG C for 20-50 minutes, after baking, cooling the baked fish skin to be room temperature, and then processing the cooled fish skin into slices so as to obtain dried fish skin slices; (4) deep-frying the dried fish skin slices; and (5) removing oil from the deep-fried fish skin slices, seasoning the dried fish skin slices after oil removal, and packaging the seasoned dried fish skin slices. According to the method disclosed by the invention, original color and original nutrition of the fish skin can be reserved to the maximum extent, the mouth feel and the preservation property are improved, and the processing technology is simple and environmental-friendly.
Owner:SICHUAN UNIV

Electro-larynx

InactiveUS7212639B1Improve approximationFacilitates production of substantially natural sounding speechTracheaeElectric controllersFrequency spectrumGlottis
An improved electro-larynx includes a linear transducer and / or an improved waveform generator. The improved electro-larynx sets up a sound wave within the pharynx of the user which closely approximates a normal glottal excitation. The linear transducer preserves the harmonic structure of a glottal source wave generated by the waveform generator and translates it into a vibration. The transducer includes an armature assembly, suspension assembly, and coupler disk coupled together to move in concert. The armature assembly vibrates as a function of the desired and input glottal source wave, which in turn causes an immediate and corresponding vibration of the coupler disk. The suspension assembly constrains armature movement to one dimension and provides additional compliance. The coupler disk includes a substantially flat surface suitable for engaging the surface of a user's throat and vibrates as a linear function of the input glottal source wave. The improved waveform generator produces a relatively good approximation of an actual glottal source waveform by preferably deriving it from actual voice data and having the effects of the modulation of the vocal tract removed. As a result, the harmonic structure of the glottal source waveform has overtones which drift in frequency, similar to normal glottal excitations. The waveform generator also allows user adjustment of the pitch and amplitude of the glottal source wave and smoothes out any distortions caused by the process of obtaining the glottal data used to generate the glottal source wave. The waveform generator bolsters the frequency response at the high end of the spectrum to compensate for any roll-off, yielding a frequency response spectrum of about 20–5 Khz. The responsiveness of the linear transducer allows the glottal source wave's pitch, amplitude, and harmonic structure to be communicated through the coupler disk and realistic glottal source waves to be transduced into the user's pharynx, resulting in the production of substantially normal speech.
Owner:CHARLES STARK DRAPER LABORATORY

Automatic fluid preparation device for cutting fluid for machining center

The invention discloses an automatic fluid preparation device for a cutting fluid for a machining center. The automatic fluid preparation device comprises a cutting fluid water tank, a mixed cutting fluid water storage barrel A and a mixed cutting fluid water storage barrel B, wherein the cutting fluid water tank is arranged on a machine tool workbench; the mixed cutting fluid water storage barrel A and the mixed cutting fluid water storage barrel B are connected onto the cutting fluid water tank through a cutting fluid control box, and used for supplying a cutting fluid to the cutting fluid water tank; minimum fluid level sensors and maximum fluid level sensors are correspondingly placed at the minimum fluid levels and the maximum fluid levels of the mixed cutting fluid water storage barrel A and the mixed cutting fluid water storage barrel B, and correspondingly connected with fluid preparation water pumps and water supply pumps through fluid preparation electromagnetic valves and water supply electromagnetic valves; the fluid preparation water pumps are connected with pure cutting fluid cylinders; the water supply pumps are connected with make-up water tanks; and the minimum fluid level sensor A, the maximum fluid level sensor A, the minimum fluid level sensor B and the maximum fluid level sensor B are all connected with the cutting fluid control box. By adoption of the automatic fluid preparation device disclosed by the invention, the automation is achieved, the quantity of auxiliary workers is reduced, the cost is reduced, the preparation of the cutting fluid is stable, and the water consumption is lowered.
Owner:ANHUI YONGCHENG MACHINERY
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