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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 40. Отображено 40.
30-05-2023 дата публикации

Rack assembly and conveying assembly

Номер: CN116177123A
Автор: XU JIAMING, XU WENTAO
Принадлежит:

The rack assembly comprises a workbench, a mounting rod is arranged at the top of the workbench, a guide rail and a toothed plate are symmetrically arranged on the two sides of the mounting rod respectively, a conveying plate is arranged at the top of the mounting rod, and the bottom of the conveying plate is connected with a plurality of braking mechanisms through an adjusting mechanism; a driving mechanism is arranged at the input end of the braking mechanism, a driving motor serves as a driving component at the adjusting end, so that a bidirectional adjusting lead screw rotates, an adjusting block is driven by reverse threads to adjust the distance between the adjusting block and a plurality of sets of braking ends and stabilizing ends arranged at the bottom of the adjusting block, and adjustment is well conducted according to the sizes of a toothed plate and a guide rail; and a driving motor and a driving shaft serve as driving parts at the driving end, a gear is driven to rotate and ...

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07-07-2023 дата публикации

Portable cable bending tool

Номер: CN116393617A
Принадлежит:

The invention relates to a portable cable bending tool, which relates to the technical field of cable processing, and comprises a bracket, a workbench, a guide assembly and a bending assembly, and the guide assembly and the bending assembly are arranged on the workbench; the workbench is connected with the support. The guide assembly comprises a first guide column and a second guide column, the first guide column and the second guide column are symmetrically arranged and rotationally connected with the workbench, the second guide column is slidably connected with the workbench, the second guide column can be close to or away from the first guide column, and a locking piece is arranged on the second guide column and used for fixing the second guide column. The bending assembly comprises a bending column and a bending arm, the bending column is arranged on one side of the first guide column and rotationally connected with the workbench, a plurality of variable-diameter plates are arranged ...

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15-08-2019 дата публикации

NEW METHOD FOR VISUAL QUANTITATIVE DETECTION OF DUAL HEAVY METAL IONS

Номер: WO2019153677A1
Принадлежит:

Provided is a visual quantitative method for heavy metals, comprising an in vitro nucleic acid amplification and detection method, wherein during in vitro nucleic acid amplification, an ultra-fast PCR reaction is carried out by using primers composed successively of a complementary sequence, a linker arm, a complementary sequence, and a nucleic acid sequence that specifically amplifies the target to be tested, and during detection, self-assembly color development is realized by using a hairpin sequence composed of a complementary sequence and G-quadruplex.

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30-06-2023 дата публикации

Magnetic aptamer biosensor for detecting beta-lactoglobulin

Номер: CN116355908A
Принадлежит:

The invention discloses a magnetic aptamer biosensor for detecting beta-lactoglobulin. The magnetic aptamer biosensor comprises the following steps: 1, a construction strategy of the magnetic aptamer biosensor for detecting beta-lactoglobulin; 2, detecting a magnetic aptamer biosensor sequence of beta-lactoglobulin; 3, optimizing conditions of the magnetic aptamer biosensor for detecting the beta-lactoglobulin; and 4, detecting the beta-lactoglobulin. The design principle is as follows: after beta-lactoglobulin is identified by a capture probe and a signal probe sandwich, the conformation of the double aptamers is changed, the fluorescent dye SYBR Green I is converted from a binding state to a free state to induce the change of a fluorescence signal, the signal change and the concentration of the target are in a linear relationship, and the target is quantitatively detected according to the difference value of the fluorescence change. The biosensor finally realizes rapid, low-cost, strong-specificity ...

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15-08-2019 дата публикации

NOVEL COLORIMETRIC SENSING METHOD FOR DUAL PATHOGEN

Номер: WO2019153675A1
Принадлежит:

Provided in the present application is a novel colorimetric sensing method for a dual pathogen, comprising an in vitro nucleic acid amplification and a detection method, where the in vitro nucleic acid amplification uses a primer consisting sequentially of complementary sequences, a connecting arm, complementary sequences, and a nucleic acid sequence of a specifically amplified target to be tested for a superfast PCR reaction, and the detection uses a hairpin sequence consisting of complementary sequences and a G-quadruplex to implement self-assembly color development.

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14-07-2023 дата публикации

High-affinity vibrio parahaemolyticus aptamer based on cutting and evolution screening

Номер: CN116426531A
Принадлежит:

The invention discloses a high-affinity vibrio parahaemolyticus aptamer based on cutting and evolution screening. The high-affinity vibrio parahaemolyticus aptamer comprises: (1) a vibrio parahaemolyticus short aptamer with high binding performance obtained based on cutting; (2) an aptamer evolution screening method; and (3) screening the vibrio parahaemolyticus aptamer with high affinity and high specificity based on evolution. The method comprises the following steps: firstly, cutting an aptamer based on truncation, stem-loop cutting and gradual shortening, and carrying out result verification by utilizing qPCR (Quantitative Polymerase Chain Reaction) to obtain a vibrio parahaemolyticus short aptamer sequence with more excellent binding performance; in order to further improve the performance of the aptamer, the cut short aptamer sequence is introduced into a library for innovative evolution screening, and the vibrio parahaemolyticus aptamer with high affinity and specificity is obtained ...

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11-08-2023 дата публикации

Continuous super-long cantilever steel structure belt and mounting method thereof

Номер: CN116575583A
Принадлежит:

The invention discloses a continuous super-long cantilever steel structure belt and an installation method thereof. The cantilever steel structure belt is in a multi-curvature wave shape and is in a downward gradually-expanding arc shape from inside to outside. Through the subunit arrangement, the targeted connection between each unit and the main body structure can be ensured; through the arrangement of different units, the position of the cantilever sealing beam and nodes of follow-up partition construction can be clearly determined; through the arrangement of the corner reinforcing units, it is guaranteed that the cantilever is reinforced at the large corner; through the combined arrangement of the overhanging corner columns, the overhanging forked beams and the overhanging corner fold line beams, the stress balance and integrity of the large-corner unit are enhanced in a three-dimensional mode; through the descending arrangement of the overhanging beam sealing connecting piece, the ...

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08-08-2023 дата публикации

Construction method of combined high-clearance large-span variable cross-section roof structure

Номер: CN116556570A
Принадлежит:

The invention discloses a construction method of a combined high-clearance large-span variable cross-section roof structure, the roof structure is an irregular curved surface building, the whole roof structure is triangular, two base angles are respectively a high-clearance structure unit and a large-span structure unit, and a vertex angle is a variable cross-section structure unit. A first skylight unit, a second skylight unit, a central area unit and the like are arranged among the units; the construction area and the closure area of each unit are defined through division of each area, and the high-clearance structure unit, the large-span structure unit and the variable cross-section structure unit are firstly constructed and then are closed at the skylight; construction is facilitated, and a construction site is reasonably planned; through the arrangement of the high-clearance structure unit, the combined beam system is a large-span beam body, the variable cross section is arranged, ...

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08-08-2023 дата публикации

Active stirring type magnetic bead mixing microfluidic device based on three-dimensional Helmholtz coil magnetic field

Номер: CN116555022A
Принадлежит:

The invention relates to an active stirring type magnetic bead mixing micro-fluidic device based on a three-dimensional Helmholtz coil magnetic field, a micro-fluidic chip with an electrowetting micro-valve structure and a mechanical valve structure is prepared by cutting a patterned structure through laser, and the patterned hydrophobic surface of an electrowetting micro-valve is prepared by using a laser scanning hydrophobic process; according to the invention, the continuous capillary force is generated in a manner of combining gravity and capillary force, so that the sample introduction manner of the micro-fluidic chip is simplified. The three-dimensional Helmholtz coil is used for generating a rotating magnetic field, so that magnetic beads in the chip can have active mixing and active capturing functions in the same cavity, the structural design of the micro-fluidic chip is simplified, and the capturing efficiency of nucleic acid in a detection process is improved. The device can ...

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26-05-2023 дата публикации

Development and application of intracellular tracing platform based on cavity hairpin ThT optical nucleic acid switch

Номер: CN116162660A
Принадлежит:

The invention provides development and application of an intracellular tracing platform based on a cavity hairpin ThT optical nucleic acid switch. Through a mode of modifying a hairpin sequence carrying a CGG-AAA mismatched cavity onto a liposome, stable loading of low-concentration ThT (nM level) and efficient fluorescence excitation after cell entry are realized under the condition of not additionally introducing fluorescence developing substances such as a fluorescence label or enzyme and other delivery carriers for assisting ThT cell entry. The developed tracing platform not only has excellent imaging capability, but also can delay passive entry of ThT into a nucleus within 8 hours after entry based on the cavity hairpin ThT optical nucleic acid switch, so that the developed intracellular tracing platform has the advantages of avoiding complex operation and extra cost, saving the ThT consumption, and simultaneously reducing the cost of the tracing platform. The problem that non-specific ...

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30-05-2023 дата публикации

Rainstorm torrential flood hydrological multi-element telemetering system and method

Номер: CN116182936A
Принадлежит:

The invention provides a rainstorm torrential flood hydrological multi-element telemetering system and method. The system comprises a supporting piece used for supporting the whole device; a detection module for detection, a transmission module, a power supply module and an alarm module are integrally mounted at the top of the supporting piece; the detection module is connected with the transmission module and realizes data transmission, and the power supply module is electrically connected with the detection module, the alarm module and the transmission module at the same time and is used for providing electric energy. The detection data is diversified, the data synchronism is high, real-time monitoring of various hydrological elements can be achieved, different rainfall capacities and water flows are effectively monitored in cooperation with threshold setting, and good economic value and application and popularization value are achieved.

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04-07-2023 дата публикации

Double-signal intelligent organophosphorus pesticide detection method

Номер: CN116380886A
Принадлежит:

The invention discloses a method for intelligently detecting organophosphorus pesticides through double signals. The invention provides a dual-signal intelligent organophosphorus pesticide rapid detection method of Fe-N-C-at Hemin nano-enzyme, which comprises (1) a colorimetric signal detection system and (2) an electrochemical signal detection system. Wherein the colorimetric signal system verifies the correlation between acetylcholin esterase and the activity of Fe-N-C-at Hemin oxidase by using the oxidase-like activity of Fe-N-C-at Hemin and the inhibition of thiocholine on the activity of Fe-N-C-at Hemin; the detection performance of the dual-signal intelligent sensor on the organophosphorus pesticide is verified on the basis of the inhibition of the organophosphorus pesticide on acetylcholin esterase by utilizing the correlation between acetylcholin esterase and thiocholine of an ATCh (Acetylthiocholine) product and a current signal according to an electrochemical signal and on the ...

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02-05-2023 дата публикации

Toxoplasma gondii closed tube visual detection kit and detection method thereof

Номер: CN116042881A
Принадлежит:

The invention provides a toxoplasma gondii closed tube visual detection kit and a detection method thereof. The toxoplasma gondii detection kit comprises the following components: a commercially available PCR tube, an SPA isothermal amplification system and an H < + > response related reagent. The SPA isothermal amplification and the pH indicator BTB are combined, the RGB analysis technology of a smart phone is used in parallel, closed tube detection of toxoplasma gondii is achieved, and the kit has the advantages of being rapid, high in specificity, high in sensitivity, high in interference resistance, visual, convenient to operate and the like.

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01-08-2023 дата публикации

Novel copper-based nano material and application thereof in oxidation resistance and bacteriostasis

Номер: CN116511516A
Принадлежит:

The invention discloses a novel copper-based nano material and application thereof in the aspects of oxidation resistance and bacteriostasis. A CSIA isothermal amplification product is used as a template for the first time, and two copper-based nano materials CSIA-Cu-Pt and CSIA-Cu-Ag are synthesized through a chemical reduction method. The CSIA-Cu-Pt is found to have peroxidase-like activity, the KM of the CSIA-Cu-Pt to TMB and H2O2 is 0.01 mM and 0.05 mM respectively, and the Vmax of the CSIA-Cu-Pt to TMB and H2O2 is 1.674 * 10 <-7 > M <-1 > s and 97.29 * 10 <-7 > M <-1 > s respectively; the CSIA-Cu-coated Ag has bacteriostatic activity, and the bacteriostatic mechanism is mainly that oxidative stress in bacteria is caused by addition of a nano material, and then oxidative damage of DNA is caused, so that bacteria rupture is caused.

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02-01-2020 дата публикации

MERCURY ION DETECTION PRODUCT AND METHOD AND SMART PHONE IMAGING ANALYSIS SYSTEM

Номер: WO2020000598A1
Принадлежит:

A mercury ion detection product and method and a smart phone imaging analysis system. A lateral flow chromatography sensor based on a nucleic acid base mismatch, comprising at least one nucleotide sequence shown in sequences 1-3, and having detection specificity and sensitivity. A smart phone imaging analysis system used in matching the lateral flow chromatography sensor, detection results displayed on the lateral flow chromatography sensor are converted into concentration values of mercury ions by means of a mobile phone, and a quantitative detection of the mercury ions in a sample is achieved. The mercury ion detection product and method and the smart phone imaging analysis system are suitable for an untrained personnel to perform on-site tests, and provide convenience for on-site detections such as food safety and environmental safety.

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25-07-2023 дата публикации

Quick-mounting type equipment hanging and supporting device and construction method thereof

Номер: CN116481091A
Принадлежит:

The invention relates to a fast-assembly type equipment hanging and supporting device and a construction method thereof, and relates to the technical field of outdoor installation operation, and the fast-assembly type equipment hanging and supporting device comprises an installation frame, a pre-assembly assembly and a guide assembly; the mounting frame is mounted on a building outer wall through fixing bolts, and a bearing plate is arranged at the bottom of the mounting frame and used for placing an air conditioner outdoor unit. The preassembling assembly comprises a preassembling piece and a preassembling plate, the preassembling piece is connected with the mounting frame, the preassembling plate is in sliding connection with the preassembling piece, the sliding direction is the same as the high side direction of the mounting frame, and the preassembling plate is used for fixing the air conditioner outdoor unit; the two guide assemblies are symmetrically arranged along the bearing plate ...

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13-04-2021 дата публикации

Linear automatic welding rod electric arc welding structure

Номер: CN212945954U
Принадлежит: QIU QIYU, 邱齐宇

The utility model discloses a linear automatic welding rod electric arc welding structure, and relates to the technical field of welding, in particular to a linear automatic welding rod electric arc welding structure which is characterized in that a first sliding groove is formed in a bottom plate, a third sliding block is arranged in the first sliding groove, and the third sliding block is connected with the first sliding groove in a sliding mode; a second connecting block is fixedly connected to the top face of the third sliding block, a second clamping device is arranged on the top face of the second connecting block, third sliding grooves are formed in the two sides of the bottom plate, fourth sliding blocks are arranged in the third sliding grooves, the fourth sliding blocks are connected with the third sliding grooves in a sliding mode, and fourth lead screws are fixedly connected to the fourth sliding blocks. According to the plate welding device, a plate can be rapidly clamped in ...

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08-08-2023 дата публикации

Construction method for collaborative stress anti-deformation floor system structure of steel structure with extreme height-span ratio

Номер: CN116556521A
Принадлежит:

The invention discloses a construction method of an extreme height-span ratio steel structure collaborative stress anti-deformation floor system structure. A combined beam floor system structure is integrally in a petal shape and is in a radial shape from top to bottom in the height direction; a composite beam system in the composite beam floor system structure is arranged in an arch-shaped variable cross-section mode in the span direction, and the middle of the composite beam system is arranged in a high clearance mode. According to the large-span ultimate-height-span-ratio composite beam, the anti-pulling and non-shearing-resistant connecting pieces and the concrete post-pouring area are designed for the hogging moment of the large-span ultimate-height-span-ratio composite beam, and concrete floor slab cracking caused by later-period loading is effectively avoided by reasonably arranging the concrete floor slab pouring sequence and the unloading method in construction; through the arrangement ...

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11-07-2023 дата публикации

Cavity hairpin ThT optical nucleic acid switch and application thereof

Номер: CN116410980A
Принадлежит:

The invention provides a ThT optical nucleic acid switch based on a cavity hairpin. Compared with a G-quadruplex and other stimulated ThT nucleic acid conformation, a more convenient forming mode is achieved, the effect that ThT fluorescence excitation is enhanced by 17-20 times compared with single-stranded nucleic acid, is enhanced by 2.5-5 times compared with complementary double-stranded nucleic acid and is enhanced by nearly 500 times compared with ThT autofluorescence can be achieved, and meanwhile, based on the high programmability of the hairpin complementary sequence, through the integration of the aptamer, the application range of the hairpin complementary sequence is widened, and the application range of the hairpin complementary sequence is widened. A non-enzyme label-free fluorescent/proportional ThT optical nucleic acid switch sensor for tetracycline and berberine is successfully constructed, specific identification of two targets at the pM level can be achieved within 16 ...

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11-08-2023 дата публикации

Small hydropower station cluster generation power prediction method based on BP-SVM multi-model fusion

Номер: CN116581738A
Принадлежит:

The invention discloses a BP-SVM multi-model fusion-based small hydropower station cluster power generation power prediction method. The method comprises the steps of collecting runoff type small hydropower station original data, repairing original missing data, extracting power generation characteristics, performing cluster classification, performing normalization preprocessing, and eliminating data dimension differences. Constructing an adaptive small hydropower station fusion prediction model, constructing a BP neural network prediction model, and constructing an SVM support vector machine prediction model; carrying out fusion optimization prediction on the generated power; and carrying out analysis, verification and correction on the error of the prediction result of the fusion prediction model by adopting an RMSPE root mean square percentage error. According to the method, through extraction of hydroelectric cluster output and factor correlation characteristics, construction of the ...

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08-08-2023 дата публикации

Rapid detection method for glutathione and cysteine

Номер: CN116559102A
Принадлежит:

According to the rapid detection method for glutathione and cysteine, the detection capacity of Fe-N-C-Hemin nano-enzyme on glutathione (GSH) and cysteine (Cys) is verified on the basis of the activity of Fe-N-C-Hemin nano-enzyme and by utilizing the inhibition principle of sulfydryl small molecules on oxidase-like activity of Fe-N-C-Hemin; fe-N-C-at-Hemin is used as a main material of the sensor to construct a biosensor based on the nano-enzyme, and the biosensor is used for rapidly and sensitively detecting glutathione and cysteine.

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07-07-2023 дата публикации

Portable selenium-enriched food rapid detection device and method

Номер: CN116399862A
Принадлежит:

The invention provides a portable selenium-rich food rapid detection device and method. The provided detection device comprises the following steps: (1) integration of a 3D printing device; the 3D printing device comprises a bottom plate, a sample area, a preparation area, a colorimetric card, a colorimeter support, a lock and a cover. The preparation area comprises nano-enzyme bioactive paper, and Pt-Co-N-C nano-enzyme is fixed on the nano-enzyme bioactive paper; according to the invention, the flow and the type of liquid are respectively controlled through the rotation of the scale gear and the fixed cavity, the on-site rapid and portable qualitative and quantitative detection of the selenium-rich food is realized by combining the nano-enzyme bioactive paper, and the detection result is accurate.

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30-05-2023 дата публикации

Wavelength selective radiator for thermophotovoltaic system and preparation method thereof

Номер: CN116178010A
Принадлежит:

The invention belongs to the technical field of wavelength selective radiators, and particularly relates to a wavelength selective radiator for a thermophotovoltaic system and a preparation method thereof.The wavelength selective radiator is of a blocky ceramic structure, the side, close to a photocell, of the blocky ceramic structure is subjected to mirror polishing, and the side, close to a heat source, of the blocky ceramic structure is subjected to frosted treatment; and after Er2O3 and excessive Al2O3 powder are respectively weighed according to the stoichiometric ratio of Er3Al5O12, the selective radiator is prepared by mixing, powdering, blank making, glue discharging, sintering, annealing and grinding. The wavelength selective radiator for the thermophotovoltaic system has relatively high directional transparency, can integrally output available effective photons, realizes integral material thermal excitation emission with millimeter-scale thickness, has high space volume utilization ...

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08-08-2023 дата публикации

Spatial and temporal distribution characteristic-based unit cluster aggregation method

Номер: CN116565938A
Принадлежит:

The invention discloses a unit cluster aggregation method based on spatial-temporal distribution characteristics, and the method comprises the steps: constructing a structural model of an electrical distance, constructing an active balance degree model and a reactive balance degree model in a partition, constructing a cluster flexibility supply and demand balance degree model and a cluster response speed model, and constructing a wind and light absorption rate model and a load peak clipping rate model. And establishing a unit cluster aggregation model. According to the method, natural space-time complementarity coordination between distributed energy sources is fully and comprehensively considered, cluster division is carried out on power generation of the distributed power sources, flexible scheduling of the distributed power sources is guaranteed through coordination control and optimized operation inside the clusters and between the clusters, and efficient consumption of the distributed ...

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18-07-2023 дата публикации

Biosensor based on fluorescent hybridization chain reaction

Номер: CN116445586A
Принадлежит:

The invention provides a biosensor based on a fluorescent hybridization chain reaction. The biosensor only comprises a fluorescent hybridization chain reaction system. According to the invention, two hairpin sequences are labeled by a single fluorophore, the fluorescence of the fluorophore is quenched through the quenching capability of the G base in a hairpin state, the existence of a trigger subsequence triggers a hybridization chain reaction to form a long double-chain product, the action of the G base disappears, and the recovery of the fluorescence of the fluorophore is realized. According to the method, only a single fluorescent group is needed for labeling, modification of a quenching group and addition of other nano materials are not needed, and the simple, rapid and high-economic-benefit fluorescent hybridization chain reaction is achieved. Moreover, the fluorescent hybridization chain reaction provided by the invention can be applied to detection of various food safety risk factors ...

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08-08-2023 дата публикации

Multifunctional irregular curvature comprehensive steel roof structure

Номер: CN116556571A
Принадлежит:

The invention discloses a multifunctional irregular curvature comprehensive steel roof structure. The roof structure is an irregular curved surface building, the whole roof structure is triangular, two base angles are a high-clearance structure unit and a large-span structure unit respectively, and vertex angles are a variable cross-section structure unit and other corresponding structure units. The combined beam system is a large-span beam body and is arranged in a variable cross-section mode, a high clearance is arranged in the middle of the combined beam system, and the requirements of meeting place type high clearance and large span can be met; through the arrangement of an auxiliary frame system in the high-clearance structure unit, the stress stability of the combined beam system is guaranteed, and a cantilever installation foundation is provided for the side cantilever unit; through the arrangement of the large-span structure units and the variable-cross-section structure units, ...

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11-08-2023 дата публикации

High-clearance roof structure with cantilever combined steel structure

Номер: CN116575582A
Принадлежит:

The invention discloses a high-clearance overhanging combined steel structure roof structure which is integrally in a petal shape and is in a radial shape from top to bottom in the height direction. A combined beam system in the roof structure is arranged in an arch-shaped variable cross-section mode in the span direction, and the middle of the combined beam system is arranged in a high clearance mode. Bearing systems are connected to the two span ends of the composite beam system; through the arrangement of the combined main middle beam, the combined main variable cross-section beam and the combined main butt-joint beam, the large-span requirement of the structure is met, the high clearance requirement of the structure is guaranteed, and reasonable stress is guaranteed; through the arrangement of the side supporting system, the bearing system, the first accessory system and the second accessory system, fixation of the periphery of the composite beam system and extension of the space are ...

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23-06-2023 дата публикации

In-vitro bionic oral cavity gastrointestinal tract digestion device

Номер: CN116312173A
Принадлежит:

An in-vitro bionic oral gastrointestinal tract digestion device relates to the technical field of bionics and test analysis thereof and comprises a digestion bin part, a spiral stirring power part and a T-shaped groove plate part, a T-shaped sliding block is arranged in a T-shaped groove of a T-shaped groove plate, a fastening hoop is arranged at the upper end of the T-shaped sliding block, a glass digestion bin is fixed in the middle of the fastening hoop, and the glass digestion bin is fixed in the middle of the fastening hoop. A hollow-square-shaped flow channel is formed in the top of the glass digestion bin, a round opening is formed in the top of the hollow-square-shaped flow channel and used for being matched with a cross-shaped rubber plug, a spherical valve hole is formed in the middle of the hollow-square-shaped flow channel of the glass digestion bin, the round hole is used for arranging a spherical valve switch, and a conical head push-pull piston is arranged on the left side ...

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09-06-2023 дата публикации

Water and soil conservation monitoring safety drill rod inserting device and monitoring method thereof

Номер: CN116242985A
Принадлежит:

The invention provides a water and soil conservation monitoring safety inserting drill rod device and a monitoring method thereof. The water and soil conservation monitoring safety inserting drill rod device comprises an inserting drill rod body and at least one pair of supporting assemblies arranged on the periphery of the inserting drill rod body. The inserting drill body comprises a bearing plate and a shell installed at the bottom of the bearing plate. A pair of guide rails is arranged in the shell, and a drill rod inserting piece is slidably connected between the two guide rails in the vertical direction. The insertion drill part can be inserted into the ground so as to detect the change of a soil water layer in the ground; a displacement detection unit is arranged on the guide rail, and the displacement detection unit is matched with the inserting and drilling piece and used for detecting the vertical displacement of the inserting and drilling piece; a vibration detection unit is ...

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02-05-2023 дата публикации

Chitosan modified anthocyanin nano-liposome based on microfluidic technology and application of chitosan modified anthocyanin nano-liposome

Номер: CN116035209A
Принадлежит:

The invention provides a chitosan modified anthocyanin nano-liposome based on a microfluidic technology and application of the chitosan modified anthocyanin nano-liposome. By optimizing and controlling coefficients such as the proportion of micro-fluidic multi-phase channel contents, conditions of a buffer solution and flow velocity, system evaluation is carried out by taking the particle size and the encapsulation efficiency as response values, and the anthocyanin-coated nano-liposome with high encapsulation efficiency (more than 70%) is successfully prepared; meanwhile, due to introduction of chitosan modification, the storage duration, temperature resistance, stability and functionality of the nano-liposome in a gastrointestinal system are improved to the maximum extent, the problem that anthocyanin is difficult to be used by a human body in a functional food intake mode due to environmental sensitivity is solved, and on the basis of improving the bioavailability of the anthocyanin, ...

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25-07-2023 дата публикации

Method for passivating activity of urease in soybean milk through cold plasma

Номер: CN116473194A
Принадлежит:

The invention discloses a method for passivating urease activity in soybean milk by using cold plasma, which mainly comprises the following steps of: soaking, peeling, pulping and filtering soybeans to prepare soybean milk, and treating the soybean milk by using a dielectric barrier discharge cold plasma device under the conditions that the voltage is 33.8 kV, the two-stage gap is 0.5 cm and the time is 5 minutes. According to the method, the treatment mode of using the dielectric barrier discharge cold plasma is a non-heat treatment method, the urease activity in the soybean milk can be reduced in a short time, and compared with microwave heat treatment, the color and the amino acid content of the soybean milk are not changed; the problems of time consumption, energy consumption, change of sensory quality and loss of nutritional ingredients caused by a heat treatment method are solved.

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25-04-2023 дата публикации

Kitchen behavior real-time monitoring method and system based on improved target detection model

Номер: CN116012789A
Принадлежит:

The invention relates to a kitchen behavior real-time monitoring method and system based on an improved target detection model. The method comprises the following steps: collecting real-time kitchen monitoring data; taking the real-time kitchen monitoring data as the input of a trained combined model, and judging whether the dressing behavior of the kitchen worker is correct or not in real time; wherein the combined model comprises a large target instance segmentation module, which is used for automatically segmenting a human body large target from real-time kitchen monitoring data; and the small target detection and identification network is used for carrying out feature extraction and multi-scale feature fusion on the human body large target and selecting a candidate region so as to judge whether the dressing behavior of the kitchen worker is correct or not. Compared with the prior art, the method has the advantages of labor cost reduction, fast identification, high accuracy and the like ...

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30-06-2023 дата публикации

Ground wire maintenance pulley

Номер: CN116365416A
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The invention relates to a ground wire maintenance tackle which comprises a first sliding assembly, a second sliding assembly, a first adjusting assembly, a second adjusting assembly and a seat assembly, and the first sliding assembly and the second sliding assembly are used for being detachably hung on a ground wire and can slide in the extending direction of the ground wire. The first adjusting assembly and the second adjusting assembly are fixedly connected to the two sides of the seat assembly respectively and arranged on the first sliding assembly and the second sliding assembly in a hanging mode respectively. The first adjusting assembly and the second adjusting assembly can independently adjust the distance between the first adjusting assembly and the first sliding assembly and the distance between the second adjusting assembly and the second sliding assembly respectively. When the ground wire overhauling tackle is used, the obstacle crossing capability of the ground wire overhauling ...

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01-08-2023 дата публикации

PCR (Polymerase Chain Reaction) tube for integrally extracting genome

Номер: CN116510994A
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The invention discloses a preparation method of an APTES (at) PP PCR tube for integrally extracting a genome. The preparation method comprises the following steps: (1) depositing 3-aminopropyltriethoxysilane (APTES) on the inner wall of the PCR tube through plasma enhanced chemical vapor deposition; (2) construction of an APTES (at) PP PCR tube precise modification mold; and (3) principle exploration and condition optimization of APTES (at) PP PCR tube genome extraction conditions. The invention provides a preparation method of an APTES (at) PP PCR tube for integrally extracting a genome. The preparation method is simple, accurate, high in speed and good in shape preserving property. The modified PCR tube can adsorb a genome from a solution to the tube wall through electrostatic interaction, so that the purposes of extraction and purification are achieved.

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01-08-2023 дата публикации

Material storage device of automatic feeding machine

Номер: CN116513657A
Автор: XU JIAMING, XU WENTAO
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The storage device of the automatic feeding machine comprises a storage hopper, frame plates are arranged at the four corners of the top of the storage hopper, mounting plates are arranged in the middle of the periphery of the outer wall of the storage hopper, a transfer box is arranged at the tops of the mounting plates, a groove is formed in the upper portion of the side, close to the storage hopper, of the transfer box, and a spray head is arranged in the groove; the spray head is connected with the transfer box through a guide pipe, a water tank is arranged on the side, opposite to the storage hopper, of the mounting plate, when the situation in the storage hopper needs to be checked, the camera and the illumination lamp are controlled to be turned on through the controller, the camera transmits the situation in the storage hopper to the controller through data, and the controller controls the illumination lamp to be turned on; the controller receives data and displays the data on a ...

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08-08-2023 дата публикации

3D paper-based microfluidic device and method for rapidly detecting malathion

Номер: CN116550402A
Принадлежит:

The invention provides a 3D paper-based microfluidic device for detecting malathion, which comprises a paper layer i (a), a paper layer ii (b) and a paper layer iii (c), the paper layer ii (b) is located between the paper layer i (a) and the paper layer iii (c) and can be folded to fix the paper layer i (a) and the paper layer iii (c), hydrophobic channels are drawn on the paper layer i (a) and the paper layer iii (c) by an oily mark pen to form a hydrophilic area, the hydrophilic area is reserved on the paper layer ii (b), and the hydrophilic area is located between the paper layer ii (b) and the paper layer iii (c). Wherein the paper layer i (a) is a sample adding layer, ALP is preloaded in the hydrophilic region, the paper layer ii (b) is an enzyme hydrolysis layer, AA2P is fixed in the hydrophilic region, the paper layer iii (c) is a chemiluminescent layer, and Pt-Co-N-C nano enzyme is fixed in the hydrophilic region. The invention also provides a method for detecting malathion by using ...

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25-04-2023 дата публикации

Preparation method and application of amorphous/crystalline heterogeneous nano-enzyme

Номер: CN116003498A
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The invention discloses a preparation method and application of an amorphous/crystalline heterogeneous nano enzyme. At the temperature of 95 DEG C, Fe < 2 + > is driven to be self-assembled through DNA coordination to form the Fe-DNA nano-enzyme. The strategy is a simple and controllable synthesis method, and harsh conditions required in a traditional synthesis method of an amorphous material or nano-enzyme are avoided. The obtained Fe-DNA nano-enzyme has the characteristics of excellent pH and thermal stability, good room temperature storage property, remarkable peroxidase activity, negligible oxidase activity, degradability and the like, and is proved in biosensing. The method for preparing the amorphous/crystalline out-phase nano-enzyme is simple, controllable, low in cost and very suitable for preparing the amorphous/crystalline out-phase nano-enzyme, and the obtained nano-enzyme can be used for establishing a biosensor.

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01-08-2023 дата публикации

Self-extension isothermal amplification method for clover structure and application of self-extension isothermal amplification method

Номер: CN116515962A
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The invention discloses a primer-free rapid self-extension isothermal amplification method for a clover structure and application of the primer-free rapid self-extension isothermal amplification method. A CSIA amplification mechanism is explored, an amplification product is used as a synthesis template of CuNCs to generate CSIA-CuNCs with red fluorescence, and a CSIA amplification-based copper nano-cluster universal detection method is developed based on the CSIA amplification-based copper nano-cluster universal detection method and comprises the following specific detection steps: (1) synthesis of a CSIA amplification template; (2) a CSIA isothermal amplification system; (3) a CSIA-CuNCs generation system is prepared; and (4) fluorescence signal detection. And the universal detection of the T4 DNA ligase, the T4 PNK and the MicRNA 21 is realized.

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08-08-2023 дата публикации

Short-term photovoltaic power prediction model based on variational mode decomposition, construction method and application method

Номер: CN116561567A
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The invention discloses a short-term photovoltaic power prediction model based on variational mode decomposition, a construction method and an application method, and belongs to the technical field of electric digital data processing of a photovoltaic electric field. The prediction model comprises long and short term memory, an improved self-attention mechanism and a full connection layer, a photovoltaic power sequence is decomposed by a variational mode decomposition method to obtain power subsequences at different frequencies, and the volatility of photovoltaic power signals is reduced; performing feature extraction on an input photovoltaic power sub-sequence by long-term and short-term memory to realize information abstraction; the improved self-attention mechanism gives different weight enhancement important information to the long-short-term memory hidden layer, the output vector of the self-attention layer is converted into the one-dimensional vector input of the full-connection layer ...

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08-08-2023 дата публикации

Power system scheduling method based on quantum particle swarm optimization

Номер: CN116562413A
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The invention discloses an electric power system scheduling method based on a quantum particle swarm algorithm, and belongs to the technical field of electric digital data processing of an electric power system. According to the method, a photovoltaic power generation prediction model, a wind power generation prediction model, a power system scheduling model and a quantum particle swarm algorithm are established, wind and light output is added into a scheduling platform, the condition of new energy power generation grid connection is considered, and the operation cost of a thermal power generating unit is used as a target function to establish the power system scheduling model. The electric power system dispatching model is solved through the quantum particle swarm optimization, and the optimal dispatching scheme can be quickly and accurately obtained. The method not only considers the output characteristics of the thermal power generating unit, but also considers the wind power output ...

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