282results about How to "Stable ratio" patented technology

The invention relates to the field of deodorization, and especially relates to a plant extract and microbe composite deodorant. According to the invention, a plant extract and a microbial fermentation broth are mixed according to a ratio of 1:3; the mixture is placed in plastic buckets; and sealed anaerobic fermentation is carried out for 5-9 days, such that the composite deodorant is obtained. The microbial fermentation broth is obtained through the following steps: saccharomycetes, lactobacillus, bacillus subtilis, acetobacter pasteurianus and photosynthetic bacteria are inoculated according to the ratio of 1-4:2-6:5-25:1-4:1-2, and mixed fermentation is carried out; and after 60-84h of aerobic fermentation, the microbial fermentation broth is obtained. The invention aims at providing the plant extract and microbe composite deodorant. Deodorizing is realized with the combination of the plant extract and microbes. With the deodorant, fast and continuous deodorization can be realized; production cost is reduced; and a deodorization effect is good. With the deodorant, deodorization can be achieved fundamentally.

To provide an etching method for broadening a trench opening between patterns of an etching mask in a dry process. The etching method of a semiconductor substrate in which silicon and a silicon nitride film are exposed at least on a surface of the semiconductor substrate, comprises an oxidation step of oxidizing the silicon and the silicon nitride film from an exposed surface to a given film thickness by spraying the semiconductor substrate with substances excited by plasma discharge of O<subscript>2 </highlight>gas as a reaction gas, and an etching step of etching the semiconductor substrate oxidized in the oxidation step by plasma using a reaction gas comprising at least O<subscript>2 </highlight>gas and CH<subscript>2</highlight>F<subscript>2 </highlight>gas.

An optical interleaver for receiving an incident beam carrying a wavelength-division-multiplexed (WDM) signal comprising a plurality of channels at center wavelengths .lambda..sub.1, .lambda..sub.2, .lambda..sub.3, .lambda..sub.4, .lambda..sub.5, .lambda..sub.6, . . . and generating therefrom at least one de-interleaved output signal comprising the odd channels .lambda..sub.1, .lambda..sub.3, .lambda..sub.5, . . . or the even channels .lambda..sub.2, .lambda..sub.4, .lambda..sub.6, . . . is described. The optical interleaver comprises a splitting element for splitting an incident beam into a first optical signal directed along a first path and a second optical signal directed along a second path, a first resonant element positioned along the first path, a second resonant element positioned along the second path, and a combining element positioned to receive and to interferometrically combine the outputs of the first and second resonant to produce the output signal. The optical interleaver may be implemented using a free-space configuration using a beamsplitter and a plurality of resonant cavities such as asymmetric Fabry-Perot resonators or Michelson-Gires-Tournois resonators. In an alternative preferred embodiment, the optical interleaver may be implemented in a Mach-Zender-style configuration using couplers and fiber ring resonators. According to a preferred embodiment in which the optical interleaver is in a free-space configuration, the splitting element that receives the incident beam comprises a partially reflective surface positioned such that a normal to the reflective surface is at a less-than-30 degree angle with respect to the incoming beam for increased stability against polarizations in the incoming beam. According to another preferred embodiment, thermal stability of the optical interleaver is enhanced by configuring and dimensioning the optical interleaver such that the amount of glass or other optical material in the first and second split-beam paths is equalized. In accordance with reciprocity principles, the optical interleaver is readily adapted to operate as an interleaver, de-interleaver, or add/drop multiplexer.

An engine generator apparatus controls the air-fuel ratio in response to the stable output of an oxygen sensor. When a system protector 138 detects a disorder in a power network, it outputs failure signal. A connection relay 135 is opened in response to the failure signal to release connection of a generator to the power network to release load. When the failure signal is not detected, a load determination section 41 urges a proportional valve controller 40 and the controller 40 drives a valve 35 corresponding to the oxygen density to perform a control of the air-fuel ratio. The load determination section 41 determines that the load is released by the failure signal to send a notification of no load to the controller 40. The controller 40 stops the control of the air-fuel ratio based on the oxygen density in response to this notification.

The invention belongs to the technical field of curing agents and discloses a high-solid and averaged-molecular weight non-toxic polyurethane curing agent for a sub-gloss varnish and a preparation method thereof. The method comprises the steps of (1) in the nitrogen protection environment, adding a catalyst drop by drop in a reaction vessel filled with a solvent and toluene diisocynate during the stirring process, reacting at the temperature of 40-55 DEG C, cooling on the condition that the content of NCO is lowered to be 13%-23%, and adding an acidic polymerization inhibitor to obtain a toluene diisocyanate trimer; (2) mixing a polyhydroxy compound with a dehydrating agent, adding the obtained mixture in the toluene diisocyanate drop by drop, reacting and cooling to obtain a polyurethane addition product; (3) stirring and mixing the toluene diisocyanate trimer with the polyurethane addition product, separating in a film evaporator, adding a dilution solvent and stirring evenly to obtain the high-solid and averaged-molecular weight non-toxic polyurethane curing agent. The curing agent is centralized in the distribution of molecular weight, low in viscosity, and high in content of effective isocyanate groups. After a varnish is prepared by the curing agent, a paint film is fast in drying speed, good in levelability and high in fullness.

Provided are a micro-electro-mechanical system (MEMS) probe card and a method for manufacturing the same. The method includes preparing first to nth low-temperature co-fired ceramic (LTCC) substrates each having a via hole, filling each via hole with a via filler conductor or a resistor, stacking the first to nth LTCC substrates and firing the stacked substrates at a temperature of 1,000° C. or less to prepare a LTCC multilayer substrate, forming an insulating layer on the surface of the LTCC multilayer substrate, and forming a thin film conductive line on the surfaces of the insulating layer and the via filler conductor.

A device for continuous preparation of poly(p-phenylene terephthalamide) polymer and a preparation method belong to the field of polymer materials, and relate to the polymer material manufacturing technology. The invention is characterized in that: the poly(p-phenylene terephthalamide) polymer is prepared by using the preparation device and through the following steps: preparing a cosolvent-solvent system; proportionally and simultaneously adding the cosolvent-solvent, p-phenylenediamine and terephthaloyl chloride into a No.1 mixer, mixing and allowing the mixture to flow into a twin screw reactor; successively allowing the mixture to flow into a subsequent mixer and a No.2 twin screw reactor till a light-yellow breadcrumb-like mixture is extruded from a No.3 twin screw reactor, pulverizing the mixture, washing by water, and drying to obtain the poly(p-phenylene terephthalamide) polymer. The method of the invention can solve the problems of deepened color and decreased reactivity of p-phenylenediamine caused by long-term storage in a cosolvent-containing solvent; the combination of a plurality of twin screw reactors meets the mixing requirements of the polycondensation reaction at different stages and provides a logarithmic viscosity of above 6.5 dl/g; the performance requirements for industrial continuous preparation are met.

A planar lightwave circuit is provided which can be easily fabricated by an existing planar-lightwave-circuit fabrication process, which can lower the propagation loss of signal light and which can convert inputted signal light so as to derive desired signal light. A planar lightwave circuit having a core and a clad which are formed on a substrate, has input optical waveguide(s) (111) which inputs signal light, mode coupling part (112) for coupling a fundamental mode of the inputted signal light to a higher-order mode and/or a radiation mode, or mode re-coupling part (113) for re-coupling the higher-order mode and/or the radiation mode to the fundamental mode, and output optical waveguide(s) (114) which outputs signal light. The mode coupling part or the mode re-coupling part is an optical waveguide which has core width and/or height varied continuously.

A conical-shaped distributing member 41 is disposed in a refrigerant distributing portion 32 distributing refrigerant, an orifice 34 is disposed by being positioned at an axis 16X of the conical body, the orifice 34 is held by a stop ring 37, and the stop ring 37 urges the orifice 34 in a flow direction of the refrigerant.

The invention relates to an automatic control method of a mill during the production process of cement and a device thereof. The method is that: a program controller is adopted to control a plurality of links of material powder preparation; a milling sound monitoring instrument is used for monitoring the milling sound change during operation, a dust collector fan inverter is used for controlling the rotating speed, instrument used for detecting the wind pressure in the mill outputs wind pressure signals to the program controller, a controller is used for controlling fan frequency conversion, an inverter is used by a powder-choosing machine for controlling the rotating speed of a rotor of the powder-choosing machine and the program controller adjusts the rotor frequency conversion of the powder-choosing machine according to the input data; a hot blast stove is arranged in front of the mill to raise temperature in the mill and cause water content of the materials to be evaporated in the mill, a thermocouple is applied at the hot wind inlet in front of the mill to monitoring the temperature of the hot wind entering the mill and leading the temperature to rise to a standard that can evaporate water content of the materials in the mill. The invention has the advantages of simple structure, reliable operation, high testing precision, the running of the mill being timely and accurately monitored by operators in a control chamber, thus realizing manual monitoring, reducing labor intensity of workers, increasing output and reducing power consumption.

The invention discloses a polyamide, a synthesis method and application thereof, and a polyamide product. The synthesis method comprises the following steps: feeding: proportionally adding dibasic acid monomer, diamine monomer and other reaction assistants into a reaction kettle; charging shielding gas into the reaction kettle until the pressure in the reaction kettle is 0.2-1.0 MPa, wherein the shielding gas contains 60-100 vol% of CO2; heating the reaction kettle to perform prepolymerization reaction on the mixture in the reaction kettle, discharging after the prepolymerization reaction is finished, drying the prepolymerization product, and carrying out solid-phase tackification to obtain the polyamide. The terminal amino content and terminal carboxyl content in the polyamide prepared by the synthesis method are low. The polyamide disclosed by the invention is applicable to a manufacturing material of electric and electronic equipment, automobile part, office supply or home supply. The invention also discloses a manufacturing material of electric and electronic equipment, automobile part, office supply or home supply.

The invention discloses a method for preparing mixed regenerated polyester fibers special for a non-woven material. The method comprises the following steps of: mixing spinning raw materials such as bottle flakes, a chemical fiber friction material, a bubble material and a fluorescent brightener, drying by using a vacuum drum dryer, and performing melt spinning to obtain as-spun fibers with two or more kinds of fineness through two or more spinning box bodies of melt spinning equipment; winding, doffing and bundling the as-spun fibers in turn; drawing in an oil bath, drawing in steam, and reeling; and performing heat setting to prepare the mixed regenerated polyester fibers special for the non-woven material. Compared with the prior art, the method has the advantages that: the fibers produced by the method have two or more kinds of fineness, the raw materials are stably proportioned and uniformly mixed, the non-woven material can have good opening and mixing effects, and the technical index of the non-woven material can be effectively improved. The mixed fibers can be used for producing different styles of non-woven materials, work efficiency is improved, and production cost is reduced.

A duty cycle correcting circuit includes a duty ratio control unit configured to alternately change logical values of a plurality of bits of a pull-up control signal and a plurality of bits of a pull-down control signal in response to a duty ratio detection signal, a duty ratio correcting unit configured to adjust driving abilities of a first driver and a second driver in response to the plurality of bits of the pull-up control signal and the plurality of bits of the pull-down control signal to output a correction clock signal, and a duty ratio detecting unit configured to detect a duty ratio of the correction clock to generate the duty ratio detection signal.

A display panel driving device has a signal line driver. The signal line driver applies a pixel driving voltage based on an input image signal to each signal line of a display panel at a timing corresponding to a clock signal. The signal line driver is divided into a plurality of driver chips connected in cascade by the clock line. The display panel driving device supplies a clock signal through the driver chips. The duty ratio of the clock signal is stabilized when the clock signal passes through the driver chips, without leading to an increase in power consumption and in manufacturing costs.

The invention discloses a drug substrate fertilizer particle agent to prevent cotton seeding pest, which is characterized by the following: adopting nitrogen, phosphor, potassium or composite fertilizer as carrier; allocating imidacloprid, thiram, triazole ketone and adjuvant according to certain proportion; making the drug particle agent; modifying the nourishing condition and seeding growing environment; reinforcing pest-proof and growing property.

The present disclosure relates to an automatic analyzer for determining a parameter of a sample fluid, including a dosing device comprising at least one dosing chamber, a first fluid flow path connecting a sample receiving vessel to the dosing chamber via a first pump, a tank containing a dilution medium, a second fluid flow path connecting the tank to the dosing chamber via a second pump, a measuring cell in communication with the dosing chamber via a third fluid flow path via a third pump, and a measuring and control system connected to and configured to control the pumps, wherein the first, second, and third fluid flow paths can selectively be blocked or unblocked by at least one valve unit and the measuring and control system is configured to control the at least one valve unit to block or unblock the first, second, and third flow paths.

The invention discloses a hot-rolled pickled steel strip with high broaching performance and a production method thereof, and belongs to the technical field of steelmaking. The hot-rolled pickled steel strip comprises the following chemical components by mass percent: 0.03% to 0.1% of C, 0.1% or fewer of Si, 0.5% to 1.5% of Mn, 0.02% or fewer of P, 0.006% of fewer of S, 0.05% or fewer of Nb, 0.1% or fewer of Ti, 0.15% or fewer of Mo and 0.1% to 0.4% of Re, and the balance being Fe and unavoidable impurities. An internal microscopic structure of the hot-rolled pickled steel strip is ferrite. The production method comprises the steps of molten iron pretreatment, smelting, casting, hot rolling, cooling, reeling, levelling and pickling, a three-stage cooling mode of water cooling, air cooling and water cooling is adopted, and constant-speed rolling is controlled. According to the obtained hot-rolled pickled steel strip, the tensile strength is larger than or equal to 980 MPa, the broaching rate lambda is larger than or equal to 110%, the elongation is larger than or equal to 20%, and the surface quality of the steel strip is excellent.

Provided are a micro-electro-mechanical system (MEMS) probe card and a method for manufacturing thereof. The MEMS probe card includes a substrate provide with a via hole filler conductor or a via hole filled with the resistor, the resistive film formed on the via hole and the substrate, the insulating film and the resistive film formed on the resistive film and the substrate, and the electrode formed on the substrate to cover the insulating film

As such, by means of a micro-electro-mechanical system (MEMS) probe card and a method for manufacturing thereof, the precise resistance value can be obtained and used for the semiconductor IC and others in the event of significant change in power.

The invention discloses a test device and test method for an oil-water relative permeability curve. The method comprises the steps of stirring and mixing oil and water by an oil-water uniform mixer, collecting a production liquid at interval, measuring mass and volume, and calculating oil-production speed, water-production speed and oil-water relative permeability to obtain the oil-water relativepermeability curve of a core. According to the oil-water relative permeability curve test method by a steady-state method, the oil and the water can be fully mixed in advance by a high-speed stirringeffect of the oil-water uniform mixer, so that the proportion of the oil and water which are injected into the core is more uniform and stable, the true moving state of the oil and water can be more accurately reflected, and the measurement time is shorted; and moreover, by the method, the metering of experiment data is more accurate, the accuracy is higher, and meanwhile, the method more conformsto reality by employing long core with relatively large size to perform simulation experiment in an oil deposit room.