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39results about How to "Good response" patented technology

Air fuel ratio control apparatus for an internal combustion engine

An air fuel ratio control apparatus for an internal combustion engine can achieve control behavior with good stability and response that is appropriate for a delay in an oxygen storage operation of a catalyst, and can always keep the state of purification of the catalyst adequately. The apparatus includes an upstream oxygen sensor (13), a downstream oxygen sensor (15), a first air fuel ratio feedback control section (130) that adjusts an amount of fuel to be supplied so as to make an air fuel ratio in an upstream exhaust gas and an upstream target air fuel ratio (AFobj) coincide with each other, and a second air fuel ratio feedback control section (150) that operates the upstream target air fuel ratio (AFobj) in accordance with an air fuel ratio deviation between an air fuel ratio detected by the downstream oxygen sensor (15) and a downstream target air fuel ratio so as to make the detected air fuel ratio of said downstream oxygen sensor (15) and the downstream target air fuel ratio coincide with each other. The second air fuel ratio feedback control section (150) sets an integral gain of integral calculation to be larger in accordance with an increasing flow rate of the exhaust gas, and also sets a proportional gain of proportional calculation so as not to be changed with respect to a change in the flow rate of the exhaust gas.
Owner:MITSUBISHI ELECTRIC CORP

Dual-fluorescence functional polymer nanometer microsphere with pH response and application thereof in tumor tissue detection

ActiveCN104004125ASensitive pH response functionIntelligent regulation of fluorescence intensityBiological testingLuminescent compositionsMicrosphereTumor cells
The invention discloses a dual-fluorescence functional polymer nanometer microsphere with pH response and application thereof in tumor tissue detection and belongs to the technical field of high polymer materials. The method comprises the following steps: firstly synthesizing an emulsion microsphere of a composite fluorescence molecule A, introducing a polymer with a pH response function into a shell layer of the microsphere by adopting a seed emulsion polymerization method, and thus preparing the emulsion microsphere with a core-shell structure; further compounding a fluorescence molecule B into the shell layer of the microsphere, and thus obtaining the dual-fluorescence-emission functional polymer nanometer microsphere with pH response. The microsphere presents different fluorescence intensity and fluorescence color under different pH value conditions from acidity to alkalinity. The microsphere is applied to tissue detection based on the pH response function of the nanometer microsphere fluorescent property, the microsphere presents violet fluorescence in the normal tissue (pH about 7.4), the microsphere presents pink fluorescence in the tumor tissue (pH of less than 6.5), and the microsphere can be used for preparing a fluorescent material and has wide application prospects in the fields of tumor cell and tissue detection, drug sustained release and the like.
Owner:JILIN UNIV

Helicopter torsional vibration stimulating test method based on FADEC control system

The invention belongs to the field of aviation application, and relates to a helicopter torsional vibration stimulating test method based on a FADEC control system. The helicopter torsional vibrationstimulating test method selects the stimulating mode, designs the stimulating system, and gives out the stimulating method. An effective stimulating implementation means is provided for a helicopter torsional vibration test, so that the helicopter torsional vibration system generates an appropriate structural dynamics response, test analysis data for determining the helicopter torsional vibrationsystem frequency and evaluating the coupling stability of the torsional vibration system and the FADEC control system are provided for engineers, and accordingly the problem that the stimulating modeof the torsional vibration test is simplex in the development of helicopter versions in China is solved. The helicopter torsional vibration stimulating test method firstly proposes the torsional vibration test stimulating system based on the FADEC engine control system, and the stimulating system is completely different from a traditional stimulating mode through the propeller pitch. The helicopter torsional vibration stimulating test method adds a stimulating signal into a helicopter system through the FADEC engine control system and stimulates a helicopter to respond by treating a power turbine rotation speed signal as the stimulating signal.
Owner:CHINESE FLIGHT TEST ESTAB

Device and method for removing SO3 in coal-fired boiler flue gas by using white mud and red mud

The invention discloses a device for removing SO3 in coal-fired boiler flue gas by using white mud and red mud. The device comprises a crusher, wherein the material outlet of the crusher is fixedly connected with an elevator, the material outlet in the top end of the elevator is fixedly connected with the material inlet of a material bin through a pipeline I, the material outlet in the bottom endof the material bin is fixedly connected with the material inlet of a spiral feeder through a pipeline II, the material outlet of the spiral feeder is fixedly connected with the material inlet of a ball mill through a pipeline III, the material outlet of the ball mill is fixedly connected with the material inlet of a grading machine through a pipeline IV, the bottom end of the grading machine is fixedly connected with the material inlet of a spiral returning machine through a pipeline V, and the material outlet of the spiral returning machine is fixedly connected with the material inlet of theball mill through a pipeline VI. According to the invention, the device is scientific and reasonable in structure, cam prepare superfine powder from white mud and red mud, can make white mud fine powder and red mud fine powder fully react with SO3 in flue gas, has good removal effect on SO3 in flue gas, can turn waste white mud and red mud into wealth, substantially reduce the flue gas SO3 removal cost of a coal-fired boiler, and is suitable for application and popularization.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Transient electromagnetic method for detecting land Japanese abandoned chemical weapons

The invention discloses a transient electromagnetic method for detecting land Japanese abandoned chemical weapons. The method comprises the steps that a known and precisely positioned point without any obstructions and signal interference in the surrounding is selected, and a base station and a moving station are erected at the point; the moving station and the base station are connected and synchronized; a standard point is selected for coordinate correction; after the coordinate correction is completed, setting-out is carried out; a detection coordinate system is established; the base station is fixed; relative coordinates are input; the coordinate axis value and the positive direction are determined according to a detection scheme; a transient electromagnetic instrument is used for detecting in a detection area; the position of a measuring line and the distance between measure points are determined according to the detection scheme; the measurement network of the whole area is drawn; the position of each measure point is marked, and successive measurement is carried out until the measurement of the whole detection area is completed; a multi-channel map is drawn based on the detection data of the whole area; and according to the measured data, a full map of the apparent resistivity of the detection area is drawn to determine an abnormal area.
Owner:SHANDONG UNIV

Sewage purification device

The invention relates to the technical field of sewage treatment, and particularly relates to a sewage purification device. The device comprises a device body, a purification chamber is arranged in the device body, a through hole is dug in the top of the purification chamber, a telescopic arm penetrates through the through hole, the top end of the telescopic arm is connected with a rotating motor,the bottom end of the telescopic arm extends towards two sides to form a stirring rod, a plurality of medicine boxes are arranged at the top of the device body side by side, a medicine doser is embedded in the top end of the purification chamber, and the medicine doser is embedded in the outer side of the telescopic arm. The arrangement of the plurality of medicine boxes and a plurality of medicine adding ports makes another medicine added after one medicine is fully dissolved, so medicine effect reduction caused by the mutual reaction of the medicines is avoided, the medicine reaction effectis good, and the unnecessary cost is substantially reduced; and the medicines and the sewage are completely reacted through a stirrer capable of moving in the vertical direction, so secondary pollution of insufficient sewage purification discharge to the environment is prevented, and the use is wide.
Owner:NINGHUA KUANXIN SCI & TECH SERVICE CO LTD

A fluorescent functional polymer nanosphere with dual response to temperature and pH, preparation method and application

The invention relates to a fluorescence functional polymer nanometer microsphere with dual responsiveness to temperature and pH and a preparing method thereof and belongs to the field of polymer materials. According to the method, a traditional composite emulsion microsphere of a fluorescent molecular A is synthesized firstly, and by adoption the synthesized traditional composite emulsion microsphere as a seed and by adoption of a seeded emulsion polymerization method, a polymer with temperature responsiveness and pH responsiveness is introduced into the shell layer of the microsphere, thus preparing a core-shell-structure emulsion microsphere with dual responsiveness to temperature and pH. A fluorescent molecular B with an AIE characteristic is composited into the shell layer of the microsphere so as to obtain the fluorescence functional polymer nanometer microsphere with dual responsiveness to temperature and pH. The nanometer microsphere shows different fluorescent response properties to the temperature and the pH, and therefore the nanometer microsphere has a wide application prospect in the fields of microscopic fluorescence nanoscale thermometers, tumor cell and tissue detection, drug sustained release, and the like.
Owner:JILIN UNIV

Method for preparing N<epsilon>-lysine-based surfactant by using microreactor

The invention provides a method for preparing an N<epsilon>-lysine-based surfactant by using a micro-channel reaction device. The method comprises the following steps that step 1, lysine is dissolvedin water to obtain a mixed solution A; fatty acid is dissolved in an organic solvent to obtain a mixed solution B; lipase is filled into a reaction tube of an immobilized enzyme micro-reactor of the micro-channel reaction device; step 2, the solution A and the solution B obtained in the step 1 are simultaneously pumped into a mixer of the micro-channel reaction device for mixing, and then the mixture enters the immobilized enzyme micro-reactor for an enzyme catalyzed lysine amidation reaction; and step 3, after the reaction is finished, effluent of the reactor is collected, supernatant is taken, and separation and purification are carried out to obtain the N<epsilon>-lysine-based surfactant. According to the method, the micro-reactor is used for carrying out an enzyme catalysis process, sothat a good reaction effect on various fatty acids is achieved, and the high-yield N<epsilon> fatty acyl lysine surfactant can be obtained; and the reaction time is shortened, the preparation processis simple, the selectivity is improved, the process flow is optimized, and the method has the advantages of safety, high efficiency and greenness.
Owner:NANJING ADVANCED BIOLOGICAL MATERIALS & PROCESS EQUIP INST CO LTD
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