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131results about How to "High degree of compliance" patented technology

Method for modifying and optimizing fractured oil and gas reservoir infilled well

The invention relates to a method for modifying and optimizing fractured an oil and gas reservoir infilled well in a fractured oil and gas reservoir production process. The method comprises the following steps: S1, establishing a three-dimensional geological grid attribute model; S2, establishing a natural fracture grid attribute model; S3, establishing a hydraulic fracturing simulation model; S4,establishing a three-dimensional oil and gas reservoir numerical simulation model, and calculating a reservoir pore pressure field and a temperature field in production and injection processes; S5, establishing a three-dimensional crustal stress model suitable for mechanical calculation; S6, generating an initial three-dimensional crustal stress field; S7, establishing a four-dimensional dynamiccrustal stress model; S8, solving the seepage-stress coupling model; and S9, optimizing reservoir transformation process parametersd. The method has the beneficial effects that the change of crustal stress and pore elastic parameters in the fracturing well reservoir development process can be effectively reflected according to the characteristics of fractured oil and gas reservoirs, and guidance is provided for arrangement of the infilled well and optimization of a fracturing transformation scheme.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Compound cigarette filter tip

The invention relates to a compound cigarette filter tip which comprises a filter tip section close to the lip end, a filter tip section close to the tobacco shred end and wrapping paper. The filter tip section close to the lip end is provided with a fiber filtration layer, the filter tip section close to the tobacco shred end is provided with a metal sintered porous filtration layer, the metal sintered porous filtration layer is a micro-filtration element made from a metal powder sintered porous filtration material, the metal powder sintered porous filtration material is prepared by using metal particles as a raw material, one-time formation is achieved through a formation technology after pretreatment, and the metal powder sintered porous filtration material is formed after sintering. The filtration material is high in filtration precision, good in filtration effect, uniform in structure and good in reproducibility, so that the compound cigarette filter tip does not deform, has the very good filtration effect on nicotine, tar, nitrosamine and other non-gaseous-phase toxic and harmful substances, does not absorb beneficial aroma components in cigarettes, is high in melting point, does not cause overburning producing cancerogens, prevents scorch and toxic smoke (produced due to scorch of the filter tip), has a good cooling effect and makes cigarettes having a cool and refreshing taste.
Owner:普瑞特机械制造股份有限公司

Preparation device and preparation method of blind joint-containing rock-like sample

The invention discloses a preparation device and a preparation method of a blind joint-containing rock-like sample. The device comprises a bottom plate and a mold support system, wherein the support system comprises a first support plate and a second support plate which are vertically connected; a size scale is arranged on the first support plate and a first baffle plate and a second baffle plate are arranged at the upper part of the first support plate; the first support plate is connected with the first baffle plate through the second baffle plate to from a cylindrical chamber for placing a rock sample preparation mold; and the connected part of two support plates is hinged with the bottom plate, so that the mold support system can drive the cylindrical chamber to rotate and to form any angle together with the bottom plate to simulate dip angles of blind joints. The preparation method of the rock sample is carried out by using the device, the mold is put into the cylindrical chamber, the support system is adjusted to the to-be-simulated dip angles of the blind joints, tin flakes capable of forming the blind joint are distributed and poured into the mold and put at the corresponding position for low-temperature treatment, and the rock sample which is capable of really reflecting the joint variables of the dip angles, the connection rate, the quantity and the intervals of the blind joints can be finally prepared.
Owner:HOHAI UNIV

Real-time fluorescence RPA reagent kit and test strip RPA reagent kit for rapidly detecting porcine parvovirus and application of reagent kits

The invention discloses a real-time fluorescence RPA (PPV real-time RPA) reagent kit for rapidly detecting porcine parvovirus (PPV) and application of the real-time fluorescence RPA reagent kit, and further discloses a test strip RPA (LFS RPA) reagent kit for rapidly detecting PPV and application of the test strip RPA reagent kit. The real-time fluorescence RPA reagent kit includes a primer shown in SEQ NO.1 and a probe, and the test strip RPA reagent kit includes a primer shown in SEQ NO.2 and a probe, wherein modification basic groups and detection platforms of the primers and the probes are different although the two kinds of reagent kits are oriented to the same target sequence. It is proved through experiments that the sensibility of the two reagent kits is both 102 copy / response, and the two reagent kits can only specifically detect PPV. The two reagent kits are used for detecting a suspected PPV sample, and it shown through the results that the detection results of the two reagent kits have high conformity with qPCR. Thus, the two reagent kits can both rapidly, efficiently and sensitively detect PPV, and an effective technological means is provided for differential diagnosis of PPV.
Owner:LANZHOU INST OF VETERINARY SCI CHINESE ACAD OF AGRI SCI

Hyperspectral image abnormality detection method based on homogeneous patches

The invention discloses a hyperspectral image abnormality detection method based on homogeneous patches. The method includes the steps that (S1) conversion is carried out on original hyperspectral data X by the adoption of a spectrum dimensionality reduction method to obtain a converted feature vector Y; (S2) an image Y after dimensionality reduction is segmented by the adoption of a hyperspectral image segmentation method to obtain a tagged image L; (S3) pixels with the same tag number as the tagged image L are searched to form pixel sets, and each pixel set corresponds to one homogeneous patch; (S4) the mean value and the variance of each homogeneous patch are calculated in a weighting method; (S5) heterogeneities of pixels are sequentially calculated with the homogeneous patches as a unit, and (S6) the thresholds of the heterogeneities are determined to sequentially judge whether the pixels are abnormal points. The method overcomes the defects that background data statistic is complex in background variety, dimension is multiple and targets are involved in calculation, improves background data calculation precision, improves the conformity of a normal distribution function and a background distribution function, and improves detection probability under a false alarm rate condition.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI

RT-RPA detection reagent kit for quickly detecting pest des petits ruminant viruses and application thereof

The invention discloses an RT-RPA detection reagent kit for quickly detecting pest des petits ruminant viruses and application thereof. The reagent kit comprises a pair of primers and a probe. The sequences of the primers are as shown in SEQ ID NO.1 and SEQ ID NO.2, and the sequence of the probe is as shown in SEQ ID NO.3. Experiments prove that the reagent kit can specifically detect the pest des petits ruminant viruses and does not amplify sheep pox viruses, goat pox viruses, contagious pustular dermatitis sheep viruses, foot and mouth disease viruses and other important sheep infection viruses under the same condition, and it is illustrated that the method has good specificity. Sensitivity experiments show that the RT-RPA primers and the probe for quickly detecting the pest des petits ruminant viruses can at least detect 150 copied templates at the temperature of 40 DEG C and under the condition that amplification is conducted for 20 min and have high conformity with RT-qPCR. Accordingly, the reagent kit can quickly, efficiently and sensitively detect the pest des petits ruminant viruses, and an effective technical means is provided for identification and diagnosis of the pest des petits ruminant viruses.
Owner:LANZHOU INST OF VETERINARY SCI CHINESE ACAD OF AGRI SCI

Multifunctional simulation experiment table for researching spontaneous combustion characteristic of residual coal under the action of multiple disaster-causing sources of deep well

The invention provides a multifunctional simulation experiment table for researching a spontaneous combustion characteristic of residual coal under the action of multiple disaster-causing sources of adeep well, and relates to the technical field of mine safety engineering. The simulation experiment table comprises a stope structure simulation system, a gas emission control system, a heating control system, a ventilation control system, a deep well mine pressure control system, a data information acquisition and analysis system and a central main control system; the stope structure simulationsystem is used for simulating the space structure of a stope; the gas emission control system is used for controlling gas emission; the heating control system is used for simulating terrestrial heat of the stope and heating the residual coal in a goaf; the ventilation control system is used for providing air flow for the simulated stope; and the deep well mine pressure control system is used for simulating a roof pressure of the goaf. According to the multifunctional simulation experiment table for researching the spontaneous combustion characteristic of the residual coal under the action of the multiple disaster-causing sources of the deep well provided by the invention, the degree of matching between the simulated spontaneous combustion process of the residual coal of the goaf and the real condition is high, and research conclusion and result are real and reliable.
Owner:LIAONING TECHNICAL UNIVERSITY

3D printing technology based artificial initial cracks containing rock-like specimen preparation method

The invention relates to a 3D printing technology based artificial initial cracks containing rock-like specimen preparation method, belonging to the technical field of civil engineering and water resources and hydropower engineering. According to the rock-like specimen preparation method, 3D printing equipment is adopted to produce a rock-like specimen containing artificial initial cracks, so thata multi-angle rock-like specimen containing inbuilt single cracks or multiple cracks can be produced; the adopted material is fragile unsaturated polyester resin with good transparency, the propertyof such resin is similar to that of real rocks, and can truly reflect the basis characteristics of fractured rock masses; the produced artificial initial cracks containing rock-like specimen can better research the initiation and propagation processes of cracks; according to the preparation method, rock-like specimen with built-in closed cracks can be made, the produced rock specimen cracks is higher in conformity with natural cracks, conditions such as the position and angle of the cracks can be intuitively and clearly observed, and thus making up the blank of the conventional rock preparation method that rock specimen with built-in closed cracks cannot be produced; and rock-like specimen with isotropy can be produced.
Owner:DALIAN UNIV OF TECH

Automatic driving vehicle safe passing method and system based on fuzzy controller

The invention discloses an automatic driving vehicle safe passing method and system based on a fuzzy controller, and the method is used for an intersection without a signal lamp, and comprises the steps: obtaining the state information of surrounding vehicles and automatic driving vehicles; calculating two-direction instantaneous collision time of the automatic driving vehicle and surrounding vehicles at the moment k; according to the instantaneous collision time along the X direction and the Y direction of the intersection, reasoning and deciding the acceleration executed by the automatic driving vehicle at the moment k through a fuzzy controller; controlling the opening degree of a throttle valve and the pressure of a brake wheel cylinder to execute an acceleration strategy adopted by the automatic driving vehicle decided at the moment k; updating the state information of the automatic driving vehicle and the surrounding vehicles and the road information at the k + 1 moment so as tomake a rolling decision of the next round; and executing all the steps repeatedly until the automatic driving vehicle safely passes through the intersection or stops to avoid collision. The method simulates the actual operation response of a driver when the driver encounters a collision risk, is high in reliability and good in real-time performance, and meets the requirements of safe passage and collision avoidance.
Owner:JILIN UNIV

On-line printed matter color quality evaluation method based on probability neural network algorithm

The present invention discloses an on-line printed matter color quality evaluation method based on a probability neural network algorithm. The method comprises the steps of selecting a printed matter color quality evaluation index, establishing a probability neural network algorithm model, utilizing a matching on-line detection device to obtain the color quality evaluation index of a to-be-measured printed matter, and inputting the obtained index data to the algorithm model, so that the probability neural network algorithm model can output the printed matter color quality evaluation result by calculating. The probability neural network modeling time of the method only needs 0.041313 seconds, the new training samples can be obtained online and real-timely, the quality evaluation index also can be modified according to the demands, and the algorithm model can be constructed rapidly. The method is high in fault tolerance, and the printed matter color quality evaluation result can be optimized by just obtaining more training samples online and real-timely and inputting to the algorithm model. The method is stable in rating, and the conformity of the evaluation result and a human eye comprehensive evaluation effect is very high.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Intelligent tester for overlying load andexpansion force under dry-wet cycle of high-speed rail foundation mud rock and using method thereof

InactiveCN110608949AReal-time measurement of volumetric moisture contentSatisfy a specific moisture contentEarth material testingMaterial strength using tensile/compressive forcesTemperature controlAutomatic control
The invention, which relates to the technical field of high-speed railways, discloses an intelligent tester for the overlying load and expansion force under dry-wet cycle of a high-speed rail foundation mud rock. The intelligent tester comprises a full-automatic pressurization metering water injection module, a lateral confinement constraint uniform water seepage module, a humidity acquisition module, an overlying load applying module, an expansion force measuring module and an intelligent temperature control uniform heating module. The invention also provides a using method of the intelligenttester for the overlying load and expansion force under dry-wet cycle of a high-speed rail foundation mud rock correspondingly. The tester has the following beneficial effects: the blank of the intelligent tester for the overlying load and expansion force under the dry-wet cycle of a high-speed rail foundation mud rock in the high-speed railway field is filled up; the testing process is intelligent; the automatic water injection, automatic data acquisition and automatic temperature control can be realized; and testing result has more practical engineering significance. In addition, the instrument provided by the invention also has advantages of low cost, no pollution, quick assembling, high reliability, high stability and great easiness in large-area popularization and application.
Owner:LANZHOU JIAOTONG UNIV
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