The present application relates to processes for the preparation of quinolone compounds and intermediates thereof, particularly to processes for the preparation of quinolones and pharmaceutical intermediates of the quinolones. In particular, the present application provides a process for the preparation of a compound of Formula I, and a process for the synthesis of quinolone compounds using the compound of Formula I as an intermediate. The process for the preparation of the compound of Formula I comprises the steps of:
reacting a compound of Formula A with R5NH2 and R6Cl in the presence of a base to form the compound of Formula I,
The present application relates to processes for the preparation of quinolone compounds and intermediates thereof, particularly to processes for the preparation of quinolones and pharmaceutical intermediates of the quinolones. In particular, the present application provides a process for the preparation of a compound of Formula I, and a process for the synthesis of quinolone compounds using the compound of Formula I as an intermediate. The process for the preparation of the compound of Formula I comprises the steps of:
reacting a compound of Formula A with R5NH2 and R6Cl in the presence of a base to form the compound of Formula I,
C07D 241/04 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
C07D 213/74 - Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
C07D 221/04 - Ortho- or peri-condensed ring systems
C07D 491/056 - Ortho-condensed systems with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring
2.
FABRICATED STEEL STRUCTURE POURING-FREE CONCRETE BUILDING STRUCTURE FOR CIVIL ENGINEERING
Disclosed in the present invention is a fabricated steel structure pouring-free concrete building structure for civil engineering, comprising: two supporting columns, wherein a cavity is formed in each supporting column, and the top ends of the opposite side walls of the two supporting columns are each provided with a placement opening; a cross beam, provided between the two supporting columns, wherein two ends of the cross beam are each fixed to one connecting joint, and the connecting joint extends into the cavity by means of the placement opening; rotating clamping members, rotatably connected to the cavities, wherein when the connecting joint is not located in the cavity, each rotating clamping member does not block the placement opening, when the connecting joint is located in the cavity, the rotating clamping member rotates and blocks the placement opening, and the rotating clamping member, the supporting column, and the connecting joint are connected by means of a connecting member; and an auxiliary reinforcing member, located below the cross beam and fixed on the two supporting columns, wherein a plurality of supporting piles are slidably connected to the auxiliary reinforcing member, and the movable end of each supporting pile is used for supporting the cross beam. The present invention can reduce the number of used bolts, shorten the mounting time of the cross beam, and guarantee the mounting strength of the cross beam.
The present invention provides an LmMYB111 gene and an application thereof in the regulation of the content of Lonicera macranthoides chlorogenic acid, and belongs to the technical field of plant transgenesis. The cDNA nucleotide sequence of the LmMYB111 gene of the present invention is as shown in SEQ ID NO: 1. By means of a genetic engineering method, the present invention causes the LmMYB111 gene to be overexpressed in Lonicera macranthoides plants, significantly increasing the content of chlorogenic acid in Lonicera macranthoides.
C12N 15/29 - Genes encoding plant proteins, e.g. thaumatin
C07K 14/415 - Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
C12N 15/82 - Vectors or expression systems specially adapted for eukaryotic hosts for plant cells
C12N 15/66 - General methods for inserting a gene into a vector to form a recombinant vector using cleavage and ligation; Use of non-functional linkers or adaptors, e.g. linkers containing the sequence for a restriction endonuclease
4.
TARGET DETECTION METHOD, SYSTEM AND DEVICE BASED ON VIDEO FRAME SYNCHRONOUS READING
Disclosed in the present invention are a target detection method, system and device based on video frame synchronous reading, relating to the technical field of data extraction for target detection. The method is applied to a monitoring system: according to a plurality of low-delay cache queues, determining a synchronous timestamp-containing video sequence; the difference values of timestamps corresponding to any two timestamp-containing video frames in the synchronous timestamp-containing video sequence being smaller than a timestamp difference value threshold value; inputting the synchronous timestamp-containing video sequence into a target detection model to obtain a target detection result corresponding to a center timestamp. According to the invention, every camera device is configured with a NTP client, a reading thread and a FFmpeg coding thread, so as to obtain the synchronous timestamp-containing video sequence, and the target detection model is trained, so that the monitoring abnormity identification precision can be improved.
The present invention relates to the technical field of plant transgenics, and provided thereby are an NAC25 gene and a use thereof in regulating tomato flowering traits. A cDNA nucleotide sequence of the NAC25 gene of the present invention is as shown in SEQ ID NO: 1. The present invention uses a genetic engineering method to cause overexpression of the NAC25 gene in a tomato plant, which can shorten tomato flowering time, increase the number of flowers, and thus increase tomato fruit yield to a certain extent. The present invention plays an important role in improving tomato yield and the enhancing the economic value of tomatoes.
A method for grafting propagation and cultivation of thorn-free Zanthoxyli pericarpium, comprising the following steps: selection and treatment of plant seeds to be grafted, selection and treatment of sowing land, sowing of plants to be grafted, daily maintenance of plants to be grafted, selection of plants to be grafted and cuttings for grafting, and grafting of thorn-free Zanthoxyli pericarpium.
An edge computing-based greenhouse monitoring system, comprising: a parameter acquisition module, which comprises an environmental parameter acquisition module, wherein the environmental parameter acquisition module is configured to acquire environmental parameters and determine whether the environmental parameters are suitable for plant growth, the environmental parameter acquisition module comprises an internal environment acquisition submodule and an external environment acquisition submodule, and the internal environment acquisition submodule and the external environment acquisition submodule are each provided with a plurality of sensors of the same type; an adjusting module, which comprises an environment adjusting module, wherein the environment adjusting module is configured to adjust the environment according to the acquired environmental parameters; and a controller, which is configured to receive data of the parameter acquisition module for comparative analysis processing and output a control instruction to the adjusting module.
4/NF electrode in the supercapacitor of the present disclosure treated with the ductile material can better adapt to volume changes during the charging and discharging process. After 10,000 cycles of charging and discharging, the capacity of the present disclosure has not faded and still maintains 100% of the maximum capacity, with a high specific capacitance of 79.4 F/g, an energy density of 35.7 Wh/kg, and a functional density of 899.5 W/kg.
A full-automatic drying and screening device, comprising: a box body, the box body comprising an upper box body (10) and a lower box body (11), the inner wall of the upper box body (10) being provided with an interlayer (12), the inner wall of the interlayer (12) being provided with a plurality of first air outlet holes (13), and the lower box body (11) comprising a first air outlet channel (14) and a second air outlet channel (15); and a heat supply element (16), the heat supply element (16) having an air outlet, and the air outlet being in communication with both the first air outlet channel (14) and the second air outlet channel (15). The heat supply element (16) is capable of generating hot air, a part of the hot air flowing into the first air outlet channel (14) by means of the air outlet, then flowing into the interlayer (12) from the first air outlet channel (14), and flowing into an inner chamber by means of the plurality of first air outlet holes (13), and the other part of the hot air flowing into the second air outlet channel (15) by means of the air outlet, and then flowing into the inner chamber by means of the second air outlet channel (15). The full-automatic drying and screening device can solve the problem of low drying efficiency caused by relatively poor air fluidity of existing Chinese prickly ash production apparatuses.
A23N 12/08 - Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
A23N 12/12 - Auxiliary devices for roasting machines
F26B 3/00 - Drying solid materials or objects by processes involving the application of heat
F26B 21/00 - Arrangements for supplying or controlling air or gases for drying solid materials or objects
B07B 9/00 - Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
A01F 11/00 - Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals
10.
CBAM MECHANISM-BASED RESIDUAL NETWORK MEDICAL IMAGE AUXILIARY DETECTION METHOD
CHONGQING UNIVERSITY OF ARTS AND SCIENCES. (China)
Inventor
Ma, Xinqiang
Huang, Yi
Li, Kang
Yang, Zhigang
Luo, Daizhong
Li, Wang
Li, Qiang
Kang, Yang
Wan, Zhongjie
Yao, Xingyan
Zhou, Antong
Liu, Youyuan
Jiang, Songtao
Abstract
A CBAM mechanism-based residual network medical image auxiliary detection method, relating to the technical field of medical image detection. The method comprises the following steps of: S1, acquiring a medical image (a lung cxr medical image), and clipping and normalizing the medical image; S2, performing data transformation on the normalized medical image; S3, on the basis of convolutional autoencoding, a combined spatial and channel attention mechanism feature extraction method, and an hs-block module, establishing a network model; and S4, inputting into the network model for prediction the medical image subjected to the data transformation, and visualizing a focus prediction region. By means of introducing a cbam mechanism and introducing an hs-block residual structure, the method enhances the lung X-ray feature extraction capability of the model, and improves the detection accuracy; and the method is used for assisting traditional manual screening of lung X-ray films, and can improve the detection efficiency.
Chongqing Ecological Environment Monitoring Center (China)
Chongqing Environment Science Research Institute (China)
Chongqing University Of Arts And Sciences (China)
Inventor
Guan, Wei
Zhang, Xiaotian
Song, Dan
Zhang, Yong
Xie, Zhigang
Abstract
The present disclosure discloses recycling treatment equipment for recycling heavy metals from complexed heavy metal wastewater, and belongs to the technical field of wastewater treatment. The recycling treatment equipment includes a wastewater separation and concentration component, an oxidization and decomplexing component, an electrolytic recovery component, and an intelligent detection component. Wastewater containing complexed heavy metals is divided into fresh water and concentrated water by performing microfiltration, nanofiltration, and reverse osmosis purification pretreatment, and the fresh water is then recycled in a targeted manner, so that the equipment has energy conservation and discharge reduction effects, can decomplex and recycle heavy metals in the concentrated water, and also synchronously purifies the fresh water. The whole process has the advantages of simple operation, zero sludge, and low treatment cost, so that the equipment is suitable for being greatly promoted.
An unmanned aerial vehicle ginger planting inspection system based on background image positioning, comprising an unmanned aerial vehicle module, an unmanned aerial vehicle camera module, an anomaly detection module, and an anomaly positioning module. A GPS positioning module is provided on the unmanned aerial vehicle module; the unmanned aerial vehicle camera module is installed on the unmanned aerial vehicle module and comprises a camera (100), a vertical emission module, and an angular emission module, and the vertical emission module and the angular emission module each comprise a laser rangefinder and a visible infrared laser emitter; and the anomaly positioning module comprises a visible light infrared laser point detection module and a correction module. The inspection system can efficiently monitor the growth situation of the ginger seedlings, is accurate in positioning of anomalous seedlings and small in error, ensures that the anomalous seedlings are effectively treated in a timely mode, and avoids the anomalous seedlings from affecting the surrounding ginger seedlings, thereby ensuring the high yield and quality of gingers.
22 for 20-24 hours, and are dried and carbonized, the carbonization temperature being 300-700 ℃, and the carbonization time being 0.5-1.5 hours. The selenium-rich biochar prepared by the present invention has a specific surface area of 31.79 m2/g, and after modification, the selenium element in the biochar conducts a special function in promoting adsorption of Cd2+. In cooperation with other multiple mechanisms, the adsorption performance for heavy metal Cd2+in wastewater is improved, and the selenium-enriched modified biochar has an adsorption capacity of 51.7 mg/g on Cd2+ with a concentration of 100 mg/L.
B01J 20/20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
C02F 101/22 - Chromium or chromium compounds, e.g. chromates
The present invention relates to an intelligent stem mustard harvester, comprising a housing, a towing and connecting portion, a top pruning mechanism, a cutting apparatus, and a traveling frame. A towing portion is provided on the front end of the housing to be connected to a tractor for dragging the housing; the top pruning mechanism is driven by a driving portion so that a top pruning portion rotates for top pruning; and the cutting apparatus is provided on the rear end of the housing, the cutting apparatus comprises a stem mustard cutting mechanism, a stepper motor, and a screw, and the stem mustard cutting mechanism is in transmission connection with the stepper motor and the screw and can move horizontally during working. According to the present invention, the top pruning portion can effectively perform top pruning on large leaves at the top of stem mustard to facilitate subsequent cutting, and the mobile stem mustard cutting mechanism can ensure uniform harvesting.
The present application relates to the technical field of robots, and discloses an intelligent picking robot for standardized orchards in mountain regions, comprising a locomotion mechanism, a grabbing device, a collecting device, and a control system. The grabbing device, the collecting device, and the control system are all arranged on the locomotion mechanism. The grabbing device can rotate horizontally on the locomotion mechanism and can be angularly regulated. Recognition components of the control system are disposed on a chassis of the locomotion mechanism and on the grabbing device. The control system controls the coordinated actions of the locomotion mechanism, the grabbing device, and the collecting device. The robot can recognize environmental factors, accurately avoid obstacles during the process of locomotion, and observe the precise position of vegetables and fruits via a camera, and navigate autonomously. The control system can regulate the relative positioning of the robot and a mechanical arm thereof in order to achieve alignment with the position of vegetables and fruits, and thereby achieve accurate picking thereof as well as collection and transport. The robot can adapt to complex greenhouse environments, achieving automatic and rapid picking of vegetables and fruits.
A01D 46/30 - Robotic devices for individually picking crops
B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
The present invention provides an automobile tail gas concentration testing system based on a neural network, comprising a sensor probe (100), a control module (200), a temperature control circuit (300), a timer module (400), a tail gas concentration potential testing circuit (500), a thermocouple temperature measurement compensation circuit (600), and an analog quantity output circuit (700). The sensor probe (100) is electrically connected to the temperature control circuit (300), the tail gas concentration potential testing circuit (500), and the thermocouple temperature measurement compensation circuit (600); the temperature control circuit (300) is electrically connected to the timer module (400); the timer module (400), the tail gas concentration potential testing circuit (500), and the thermocouple temperature measurement compensation circuit (600) are electrically connected to the control module (200); the control module (200) is connected to the analog quantity output circuit (700). The system in the present application is high in sensitivity, fast in response, good in stability, and high in practicability, and can be widely applied to real-time monitoring of the automobile tail gas concentration.
An intelligent weeding robot for a standardized orchard in a mountainous region. The robot comprises: a crawler vehicle (1), a control system (2), mowing apparatuses (3) and an inter-plant telescopic mowing apparatus (4), wherein the crawler vehicle (1) comprises a vehicle body (5), a crawler-vehicle cavity (6) is provided inside the vehicle body (5), and a crawler mechanism for driving the vehicle body (5) to travel is installed on the crawler vehicle (1); the control system (2) comprises a storage battery (12), a control box (13), a laser radar (14), a camera (15) and a storage battery (12); and there are two mowing apparatuses (3) in total, and the mowing apparatuses are respectively located on left and right sides of the rear end of the vehicle body (5). The apparatus can reduce labor and improve the mowing efficiency.
A01B 39/16 - Other machines specially adapted for working soil on which crops are growing for special purposes for working in vineyards, orchards, or the like
A01D 34/00 - Mowers; Mowing apparatus of harvesters
A01D 75/18 - Safety devices for parts of the machines
18.
METHOD FOR RECOVERING PHOSPHITE IONS IN WASTEWATER
A method for recovering phosphite ions in wastewater, comprising preparation of modified magnesium iron hydrotalcite and adsorption of phosphite ions. The modified magnesium iron hydrotalcite is prepared by dissolving Mg2+and Fe3+42222 is efficiently and uniformly distributed in a layered structure of magnesium iron hydrotalcite, the adsorption activity of the magnesium iron hydrotalcite is improved, the adsorption amount of phosphite ions reaches 157.4 mg/g, and the equilibrium adsorption time is merely 30 minutes; under the condition that a large quantity of interfering ions are present, the adsorption stability is excellent, and the adsorption performance is kept stable and does not descend in a cyclic use process.
B01J 20/02 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
B01J 20/04 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
Provided is a method for preparing a quinolone compound and an intermediate thereof, particularly, a method for preparing quinolone and a pharmaceutical quinolinone intermediate. Specifically, provided are a method for preparing a compound represented by formula I and a method for synthesizing a quinolone compound using the compound represented by formula I as an intermediate. The method for preparing the compound represented by formula I comprises the following step: reacting a compound represented by formula A with R522 and R6Cl in the presence of a base to generate the compound represented by formula I.
C07D 491/056 - Ortho-condensed systems with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring
C07D 215/56 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 3 with oxygen atoms in position 4
C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or
C07D 401/04 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
Disclosed is a device for efficiently recycling nickel from wastewater and a method. The device includes a housing, and an extraction unit and an electro-deposition unit which are respectively arranged inside the housing. The device is reasonable in overall structural design. An oscillating and floating component and a rotating component in an extraction cavity are used to fully and uniformly mix a solution to maximize the extraction strength. A mixing component in an electro-deposition cavity is used to accelerate ion dispersion, to better recycle nickel. The device is easy to operate, low in cost and suitable for mass promotion.
C02F 1/26 - Treatment of water, waste water, or sewage by extraction
C02F 1/461 - Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
C02F 1/66 - Treatment of water, waste water, or sewage pH adjustment
C25C 1/08 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of iron group metals, refractory metals or manganese of nickel or cobalt
C02F 101/20 - Heavy metals or heavy metal compounds
C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
21.
METHOD FOR RECOVERING NICKEL IN ELECTROPLATING WASTEWATER BY MEANS OF MODIFIED CHITOSAN
A method for recovering nickel in electroplating wastewater by means of modified chitosan. The method comprises: dissolving chitosan in isopropanol and performing a freezing pretreatment, then adding glutamic acid for an esterification reaction with the chitosan to prepare modified chitosan, adding the modified chitosan to nickel-containing wastewater, stirring same for a reaction, and adding a sulfuric acid solution for desorption after the reaction is finished. The glutamic-acid-modified chitosan prepared in the present invention has good adsorption performance and selectivity with regard to Ni2+and has a Ni2+ adsorption capacity of up to 237.4 mg/g, and the time taken to achieve equilibrium adsorption is merely 20 min; and after the glutamic-acid-modified chitosan has been repeatedly used 5 times, the adsorption capacity thereof can still be maintained at 89.68% of the first adsorption capacity thereof, and therefore the glutamic-acid-modified chitosan has good cycling stability.
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
B01J 20/24 - Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
C02F 101/20 - Heavy metals or heavy metal compounds
C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Provided is an air-ground integrated intelligent sprinkler irrigation robot, which can be used in cooperation with an unmanned aerial vehicle, and comprises: a locomotion system (1), a balancing system (2), an irrigation system (3), and a control system (4). By wirelessly connecting a controller (43) to the unmanned aerial vehicle, taking the advantage of a wide field of view of the unmanned aerial vehicle, a specific drought region in a certain district can be accurately obtained and a signal is transmitted to the controller (43), so that the controller (43) controls a water-saving irrigation device (32) to accurately irrigate a key region; by mounting two lower photoelectric sensors (42) on two sides of the front end of a base plate (11) in the traveling direction, and mounting electric control lifting and lowering devices (22) on two sides of a middle-layer plate (21), the two photoelectric sensors (22) can detect whether the ground on two sides of the advancing direction of the base plate (11) is level, and transmit a signal to the controller (43), and the controller (43) regulates, according to transmitted ground information, the lifting and lowering of the two electric control lifting and lowering devices (22), thereby ensuring that the irrigation system (3) mounted on a top plate (31) remains level, and improving irrigation accuracy.
The present invention belongs to the technical field of plant propagation, and in particular relates to a Zanthoxylum plant cultivation method. The Zanthoxylum plant cultivation method comprises branch starting, transplanting, and pruning. The survival rate of a Zanthoxylum plant is increased by means of branch cutting and starting, transplanting, and pruning, and a high stem starting survival rate and a high transplantation survival rate are achieved, thereby facilitating the growth and yield of a Zanthoxylum plant.
A high-efficiency dirt discharging device for higher-place pond culture in a mountainous area, the device comprising support feet (1), a fixing frame (2), a power supply lead (3), an accommodating slot (4), a higher-place pond (5), a dirt discharge port (6) and a scraping and discharging mechanism (7). By means of arranging the scraping and discharging mechanism (7) at an upper end of the dirt discharge port (6), a drive mechanism (71) drives a first gear (72) to rotate so that the first gear (72) drives, by means of a second gear (73), a drive shaft (74) and a rotating disk (76) to rotate; the rotating disk (76) drives a scraper (77) to rotate synchronously so that the scraper (77) scrapes dirt off of the bottom of the higher-place pond (5), meanwhile, the drive shaft (74) drives a crushing roller (75) to crush the dirt so as to prevent the dirt from blocking the dirt discharge port (6); and at the same time, the drive mechanism (71) drives a feeding auger (79) to rotate to convey the discharged dirt, such that the dirt is discharged through a discharge pipe (710), thereby achieving the advantage of increasing the dirt discharge efficiency.
Disclosed is a novel automatic oxygenation apparatus for high-level pond breeding in a mountainous area, and particularly relates to the technical field of oxygenation for breeding ponds. The apparatus comprises a flotation body. Square recesses are formed in the left side and the right side of the bottom end of the flotation body. A first rotating rod and a second rotating rod are arranged in the two square recesses correspondingly. In the present invention, a rotating handle is rotated to drive a rotating shaft to rotate. The rotating shaft uses second chains and second chain wheels to enable the second rotating rod to rotate in the same direction. The second rotating rod uses first gears and second gears to enable connecting shafts to rotate in the opposite direction. The connecting shafts use first chains and first chain wheels to enable the first rotating rod to rotate in the same direction. Thus, the first rotating rod and the second rotating rod rotate in opposite directions, so as to drive moving wheels on support rods to move out of the square-shaped recesses, thus propping up the entire floatation body. A worker can thus conveniently pull the handle to move the floatation body to the edge of the pond, then rotate the handle back to the original position, such that the moving wheels are retracted into the square recesses, and finally directly push the floatation body into the elevated pond. The floatation body does not need to be carried manually, and the handling thereof is time-saving and labor-saving.
Disclosed in the present invention is a sequence recommendation method and system based on a coupling relationship between an article attribute and a temporal pattern, belonging to the technical field of intelligent recommendation. The technical problem to be solved by the invention is how to fully utilize the coupling relationship existing between an interaction session sequence mode of a user and an article, and article attribute information, so as to effectively improve the recommendation accuracy. The utilized technical solution is: the method specifically comprises: constructing a data set; dividing the data set; constructing a sequence recommendation model: by means of a GRU network, learning an interaction temporal relationship between a user and an article, and an article attribute temporal relationship, and by means of an attention mechanism network, learning a coupling relationship between an article attribute and a temporal pattern, then in combination with a candidate article interaction prediction layer, constructing a sequence recommendation model; training the sequence recommendation model: inputting a training set into the sequence recommendation model, the sequence recommendation model learning to fuse a interaction sequence mode representation of the coupling relationship between the article attribute and the temporal pattern, and further training learnable parameters of the sequence recommendation model; the sequence recommendation model performing prediction.
The present invention relates to the technical field of agricultural robots. Disclosed is an intelligent weeding robot for orchards, comprising a walking mechanism, a recognition device, an inter-row weeding device, an inter-plant weeding device, and a control module. The walking mechanism, the recognition device, the inter-row weeding device and the inter-plant weeding device are controlled by the control module to cooperatively act. Weeds between rows and between plants can be synchronously cleared away, so that the weeding efficiency is greatly improved; and the weeding device can be specifically adjusted according to actual conditions such as row spacing and weed heights, so that weeding is more thorough. The use of a crawler-type walking mechanism enables the robot to walk on multiple terrains in a mountainous region, thus the practicability is higher, and the application range is wider. A camera assembly and a laser radar assembly are used for visual observation and information collection, and can be used in conjunction with the control module to enable the weeding robot to walk autonomously and complete obstacle avoidance, autonomous operation and indirect operation, and therefore, the automation degree is higher, and the control is easier.
A control device for bridge vortex vibration comprising a control unit arranged at a bottom of a bridge. The control unit includes several controllers which include a base and several sliding sheets. The base is formed with a sliding groove along the length direction. A wedge block is slidably provided in the sliding groove. Each side of two sides of the base is provided with several sliding holes. Each of the sliding sheets is arranged in a corresponding one of the sliding holes. An end of each of the sliding sheets is provided with a wedge surface matched with the wedge block. A bottom of each of the sliding sheets is provided with a wind shielding structure. The object of the disclosure is to solve the technical problem of possible vortex vibration of a bridge under the condition of a low wind speed.
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system
29.
METHOD FOR EXTRACTING AND SEPARATING ZINGERONE FROM GINGER
A method for extracting and separating zingerone from ginger. The method is implemented by using ginger as a raw material and respectively performing pretreatment, ultrasonic extraction, ultrafiltration, purification, reduced pressure concentration and other steps, wherein in the ultrasonic extraction process, sodium dodecyl sulfate and L-cysteine further need to be added to ginger; the mass ratio of ginger to L-cysteine is 100:3-6; sodium dodecyl sulfate needs to be prepared into a solution with the mass fraction of 0.5%-1.0% by using purified water; and the mass ratio of ginger to sodium dodecyl sulfate is 1:1-3. According to the present invention, the extraction transfer rate is high and reaches up to 79.1%; due to the introduction of L-cysteine that is dissolved in water and is weakly acidic, the specific adding mode of L-cysteine, and the presence of sodium dodecyl sulfate, the whole extraction system is still weakly alkaline under the presence of L-cysteine, and is more beneficial to the dissolution of zingerone; and according to the present invention, zingerone is not degraded in the extraction process and the purity of the extracted zingerone is up to 98% or above.
A method for extracting gingerol from ginger, comprising steps of using ginger as the raw material as well as montmorillonite and hypromellose as auxiliary materials, carrying out drying and pulverizing to obtain dried ginger powder, mixing the dried ginger powder with an entrainer, carrying out carbon dioxide supercritical extraction and post-extraction treatment, etc. The entrainer is one or more of methanol, ethanol, acetone, ether, and n-hexane. The present invention can greatly improve the extraction transfer rate of marker component gingerol. The transfer rate of marker component 6-gingerol can be as high as 64.3%. During post-extraction treatment, due to the adsorption of montmorillonite and the viscosity adjustment effect of hypromellose, the loss of volatile components of gingerol is less, and the gingerol is stable in a storage process and can be stored for 30 days in extreme environments. The properties of the product of the present invention almost keep unchanged, and the content of the marker component 6-gingerol has a small decrease of only 0.021%. The product of the present invention can be directly added as a functional additive in food, medicine, and cosmetics, and is convenient to use and worthy of popularization in market.
Disclosed are a freeze-dried ginger slice preparation system and a method. The system comprises a freeze-drying barrel body (1), a supporting assembly (2), a fan assembly (3), a heating component (5), a roller assembly (4), a flow guide cover (6), a discharge assembly (7) and a feed pipe (8). The supporting assembly (2) comprises a supporting disc (21), a connecting rod (22) and a mounting disc (23). The fan assembly (3) comprises a drive motor (31), a motor shaft (32), a first pulley (33), and a fan blade (34). The roller assembly (4) comprises a roller body (41), a roller shaft (42), a second pulley (43), a rib (44) and a wavy annular guide rail (45). The discharge assembly (7) comprises a discharge groove (71), a return spring (72) and a roller assembly (73). The present system and method achieve rapid freeze-drying of ginger slices and, effectively prevent the problem of the quality of the frozen ginger slices being affected due to uneven temperature or water crystallization.
An auxiliary fixing device for Sichuan peppercorn grafting, comprising an arc-shaped plate (1). Two steel wire ropes (2) are arranged inside the arc-shaped plate (1). The two ends of the steel wire ropes (2) penetrate through and extend to the outer side of the arc-shaped plate (1). A locking assembly (3) is arranged on the outer side of the arc-shaped plate (1). A cotton plate (4) is fixedly connected to the outer side of the arc-shaped plate (1). Two supply assemblies (5) are arranged inside the arc-shaped plate (1). A protective part (6) is arranged on the outer side of the arc-shaped plate (1).
An oil pressing device for fresh Sichuan peppercorn, and a working method therefor. The device comprises a base plate (1). A drying support column (2) is fixedly connected to the top of the base plate (1). A material screening assembly (3) is fixedly connected to the top of the drying support column (2). A screening discharging port (13) is formed in the bottom of the material screening assembly (3). An end part of the screening discharging port (13) communicates with a first elevating device (4). A steam frying pot (5) is arranged below the end of the first elevating device (4) away from the material screening assembly (3). Steam frying supporting columns (6) are fixedly connected to the bottom of the steam frying pot (5). The bottom of the steam frying supporting columns (6) is fixedly connected to the base plate (1). A steam frying material feeding port (15) is formed in the top of the steam frying pot (5). The steam frying material feeding port (15) is arranged directly below the outlet of the first elevating device (4). By means of the material screening assembly (3), the steam frying pot (5), a crushing housing (8), and a pressing housing (9), a fully automatic oil pressing process of Sichuan peppercorn can be performed, the processing efficiency is improved, the processing costs are saved, and the processing quality is improved.
A culture device for Sichuan peppercorn grafting and planting, comprising two supporting legs (1). A height adjusting mechanism (2) is installed on the side of each of the two supporting legs (1) away from the other. A fixing box (3) is fixedly connected between the tops of the height adjusting mechanisms (2). Through holes (4) are formed in the top and the bottom of the fixing box (3). A vertical cylinder (5) is fixedly connected to the interior of the fixing box (3). A clamping mechanism (6) is mounted inside the vertical cylinder (5). A fastening mechanism (7) is mounted at the top of the fixing box (3). A liquid injection box (8) is mounted on the right side of the fixing box (3). An automatic adjusting mechanism (9) is mounted inside the liquid injection box (8). The automatic adjusting mechanism (9) is matched with the clamping mechanism (6) and the vertical cylinder (5).
444444/NF electrode is more adaptable to volume changes of charging and discharging processes, and also preventing the corrosive effect of the electrolyte, so that the product has good cyclic stability; after 10,000 charge-discharge cycles, the capacity of the product is not attenuated, and the maximum capacity is still maintained at 100%, the specific capacitance being as high as 79.4 F/g, the energy density being 35.7 Wh/kg, and the functional density being 899.5 W/kg.
4O222O424444444/NF electrode can adapt to a volume change during charging and discharging processes, the corrosion effect of an electrolyte can also be prevented, and finally, the product has good cycle stability. After 10,000 charging and discharging cycles, the capacity of the product is not attenuated and still maintains 100% of the maximum capacity, the mass specific capacitance is significantly increased, the mass specific capacitance of the electrode can be as high as 1457 F/g at 1 A/g, and the electrochemical energy storage performance is excellent.
A method for the ex vivo culturing of thornless green prickly ash Zanthoxylum armatum DC, belonging to the technical field of plant tissue culture. In the present method, a non-axillary bud stem section of thornless green prickly ash Zanthoxylum armatum DC is used as an explant. By means of reasonably formulating a callus induction medium, the non-axillary bud stem section is successfully induced to produce callus, so as to produce an adventitious bud for propagation, thereby filling the technical gap of using a non-axillary bud stem section of thornless green prickly ash Zanthoxylum armatum DC as an explant for regeneration of plants by means of callus. By means of the present invention, a propagation system for the ex vivo regeneration of a non-axillary bud stem section of thornless green prickly ash Zanthoxylum armatum DC is established for the first time, and large-scale production is realized.
Provided is a Longan single-fruit-weight trait regulating gene DlCNR8. The nucleotide sequence of the gene is shown in SEQ ID No: 1, and the amino acid sequence of an encoded protein is shown in SEQ ID No: 2. The DlCNR8 gene regulates the cell division rate by acting on a downstream protein, so as to perform negative regulation on a fruit weight, thereby providing important gene resources and molecular markers for the selective breeding of a new large-fruit Longan variety.
C12N 15/29 - Genes encoding plant proteins, e.g. thaumatin
C12N 15/82 - Vectors or expression systems specially adapted for eukaryotic hosts for plant cells
C07K 14/415 - Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
C12Q 1/6895 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for plants, fungi or algae
Disclosed is a bridge vortex-induced vibration control device, comprising a control unit, which is arranged at the bottom of a bridge and comprises several controllers, each of which comprises a base (4) and several sliding plates (9), wherein the base (4) is provided with a sliding groove in the lengthwise direction, with a wedge block (7) being slidably arranged in the sliding groove; two sides of the base (4) are provided with several slide holes, in which the sliding plates (9) are arranged; an end of the sliding plate (9) is provided with a wedge face matching the wedge block (7); and the bottom of the sliding plate (9) is provided with a wind shield structure, which comprises a first connecting rod (15), a second connecting rod (16), a third connecting rod (17) and a wind shield curtain (18), with the first connecting rod (15) and the second connecting rod (16) both being hinged to the bottom of the sliding plate (9), two ends of the third connecting rod (17) being respectively hinged to the first connecting rod (15) and the second connecting rod (16), and the wind shield curtain (18) being quadrangular and three sides thereof being respectively arranged on the first connecting rod (15), the second connecting rod (16) and the third connecting rod (17). The device can solve the technical problem of the possible generation of vortex-induced vibration in a bridge under low wind speeds.
Disclosed is a compound of Formula I or a pharmaceutically acceptable salt thereof, preparation methods thereof, pharmaceutical composition comprising the same, and use thereof in the treatment of diseases such as pancreatic cancer.
An intelligent pesticide spraying robot self-adaptive to terrain of mountain land is provided. Walking mechanisms are respectively connected to both side ends of a chassis. A pesticide spraying mechanism includes rotary drive mechanisms respectively connected to both sides of the rear end of the chassis, telescopic spray boom mechanisms correspondingly connected to the rotary drive mechanisms, rotary nozzle mechanisms correspondingly connected to the telescopic spray boom mechanisms, a liquid pesticide storage box fixed to the top of the chassis, a first water pump fixed in the liquid pesticide storage box, and first water pipes in communication with the first water pump and the rotary nozzle mechanisms. A control chip of a control identification mechanism is communicatively connected to the walking mechanisms, the rotary drive mechanisms, the telescopic spray boom mechanisms, the rotary nozzle mechanisms, the first water pump, a front-end camera, side-end cameras and ultrasonic sensors respectively.
A mountainous terrain-adaptive intelligent pesticide spraying robot. Traveling mechanisms are respectively connected to the two side ends of a chassis (1); a pesticide spraying mechanism comprises rotary driving mechanisms (31) that are respectively connected to the two sides of the rear end of the chassis, telescopic spraying rod mechanisms (32) correspondingly connected to the rotary driving mechanisms (31), rotary spraying head mechanisms (33) correspondingly connected to the telescopic spraying rod mechanisms, a pesticide solution storage box (34) fixed on the top end of the chassis, a first water pump fixed in the pesticide solution storage box (34), and a first water pipe (36) communicating the first water pump with the rotary spraying head mechanisms; and a control chip of a control recognition mechanism is separately and communicatively connected to the traveling mechanisms (2), the rotary driving mechanisms (31), the telescopic spraying rod mechanisms (32), the rotary spraying head mechanisms (33), the first water pump, a front-end camera (41), side-end cameras (42), and an ultrasonic sensor (43). The mountainous terrain-adaptive intelligent pesticide spraying robot can accurately locate a pesticide spraying position and flexibly control a spraying range.
Disclosed is a compound of Formula I or a pharmaceutically acceptable salt thereof, and pharmaceutical composition comprising the same, and use thereof in the treatment of diseases benefiting from the inhibition of autophagic flux and/or chromatin ubiquitination, especially in the treatment of breast cancer.
C07D 403/04 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
jijiji, identifying the driving risk to which the point i is exposed under the influence of the vehicle j. According to the method, on the basis of the fact that a driving risk comes from comprehensive interaction between various factors that influence driving safety, a unified driving safety field modeling idea which can accurately reflect an interaction relationship between vehicles in a road traffic environment is provided.
The present invention provides a subculture breeding method for thorn-free zanthoxylum bungeanum maxim tissue culture seedlings, and belongs to the technical field of vegetative propagation of commercial crops. The subculture breeding method specifically comprises the following steps: primary culture, cutting, and subculture multiplication culture. The subculture multiplication culture is finished until the PPM usage amount in a culture medium is reduced to 0, and the number of generations of the subculture multiplication culture is not less than 4. According to the present invention, by properly adjusting the composition of components of the culture medium according to the number of subcultures and comprehensively researching factors such as a cutting process, so that subculture multiplication of stem segments of primary culture of the thorn-free zanthoxylum bungeanum maxim is rapidly and stably realized, and furthermore, large-scale breeding is realized in a short time.
C22C 29/04 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
47.
TI(C,N)-BASED SUPERHARD METAL COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Disclosed is method for preparing a Ti(C,N)-based superhard metal composite material, comprising using a Ti(C,N) powder and a (W,Mo,Ta)(C,N) powder as main raw materials, and a Co powder as a binding phase for preparation, so as to obtain a material with a microstructure which is a twin-core ring structure having both a black core ring and a white core ring. The composite material has a complete and evenly distributed twin-core ring structure, and under the condition of guaranteeing that the hardness thereof is not reduced or even slightly increased, the toughness thereof is greatly improved, and the fracture toughness thereof is within a range of 11.3-12.5 MPa·m1/2.
C22C 29/04 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
C22C 1/05 - Mixtures of metal powder with non-metallic powder
48.
Preparation method for silver nanowires with uniform aspect ratio and nodes
A preparation method for silver nanowires, including: dissolving a dispersant in a tribasic alcohol to get a viscous clear solution, dissolving the silver nitrate in a tribasic alcohol to get a clear solution; then, adding the silver nitrate solution to the dispersant solution for uniform mixing, finally, transferring the mixed solution into a reaction kettle, putting into an oven with a set temperature (170˜200° C.), and ending the reaction after a period of time. The mother solution of silver nanowires is diluted with alcohol and then centrifuged to separate organics, the novel silver nanowires with a uniform aspect ratio and nodes are obtained.
B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
49.
Detection device and method for simultaneous in-situ measurement of dissolved oxygen at different submerged plant leaf-water interface levels
Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, P.R.C. (China)
Chongqing University of Arts and Sciences (China)
Inventor
Wang, Wenlin
Li, Weixin
Li, Qiang
Liu, Bo
Wan, Yinjing
Han, Ruiming
Tang, Xiaoyan
Li, Wenjing
He, Fei
Zhuang, Wei
Zou, Changxin
Liu, Aiping
Yin, Shoujing
Li, Xiaohan
Pan, Guoquan
Wang, Weimin
Abstract
A detection device for simultaneous in-situ measurement of dissolved oxygen at different submerged plant leaf-water interface levels. The detection device includes a dissolved oxygen micro-optrode host. A plurality of detection probes are externally connected to the dissolved oxygen micro-optrode host and can extend out probes. The detection device includes a leaf clamp having an upper clamping head, a lower clamping head, a hinged shaft and a clamping handle. Each of the upper and lower clamping head includes a plurality of water passing cavities penetrating through the back and the front thereof. Each of the upper and lower clamping head includes a plurality of slots horizontally extending inwardly of the corresponding clamping head. The detection device includes a plurality of insertion pieces having a probe groove. The detection probe is locatable in the respective probe groove for fixation. The insertion pieces are insertable and fixable in the slots.
Nanjing Institute of Enviormental Sciences, Ministry of Environmental Protection, P.R.C. (China)
Chongqing University of Arts and Sciences (China)
Inventor
Li, Weixin
Wang, Wenlin
Li, Qiang
Liu, Bo
Wan, Yinjing
Han, Ruiming
Tang, Xiaoyan
Li, Wenjing
He, Fei
Zhuang, Wei
Zou, Changxin
Liu, Aiping
Yin, Shoujing
Li, Xiaohan
Pan, Guoquan
Abstract
A spliced detection apparatus for simultaneous wide-range in-situ detection of dissolved oxygen in a sludge-water interface of the present invention comprises a dissolved oxygen shimmer host, several detection probes, a casing and detection kits, several vertically through seat chambers being disposed in the casing, the detection kits can be placed and fixed in the seat chambers, the detection kits may be placed on the sludge-water interface, and each detection kit is provided with a vertically through water passage chamber, while the front side face and the back side face of the detection kit are respectively provided with several front slots and rear slots horizontally extending into the detection kit respectively, the detection apparatus further comprises tabs, with probe grooves being provided on the tabs, each detection probe can be put into the probe groove of the corresponding tab and fixed therein, the tabs may be inserted either into the front slots or the rear slots and can enable the probe tips of the detection probes to be placed in the water passage chamber, the detection apparatus can carry out simultaneous wide-range detection of the dissolved oxygen at different heights and horizontal positions of the sludge-water interface, and thus is quick and convenient for use.
A preparation method for silver nanowires, comprising: dissolving a dispersant in a tribasic alcohol to get a viscous clear solution, dissolving the silver nitrate in a tribasic alcohol to get a clear solution; then, adding the silver nitrate solution to the dispersant solution for uniform mixing, finally, transferring the mixed solution into a reaction kettle, putting the reaction kettle into an oven with a set temperature (170~200℃), and ending the reaction after a period of time. The mother solution of silver nanowires is diluted with alcohol and then centrifuged to separate organics, the silver nanowires with a uniform aspect ratio and nodes are obtained. The preparation method for silver nanowires is simple and easy to operate, and can improve the silver nanowires yield and uniformity.
B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
52.
UNIFORM ASPECT RATIO SILVER NANOWIRES PREPARATION METHOD
A preparation method for silver nanowires with a uniform aspect ratio, comprising: dissolving at a certain temperature silver nitrate in glycerol to get a solution A; dissolving at a certain temperature polyvinylpyrrolidone (PVP) in glycerol to get a solution B; mixing uniformly the solution A and the solution B to form a solution C; then, adding a certain amount of a medium into the solution C and mixing uniformly to form a solution D, finally, transferring the solution D into a reaction kettle, putting the reaction kettle into an oven with a set temperature, and ending the reaction after a certain time of reaction. The reactants are centrifuged twice to obtain precipitated silver nanowires. With the addition of the medium, the method can improve the moving speed of ions in a reaction solution, and obtain the silver nanowires with a uniform aspect ratio and nodes. The preparation method is simple and easy to operate, experimentally stable, and suitable for industrial production.
B22F 9/24 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
53.
NOVEL PHOSPHODIESTERASE TYPE-5 INHIBITOR AND APPLICATION THEREOF
Disclosed are a compound represented by general formula (I) as a phosphodiesterase type-5 inhibitor or pharmaceutically acceptable salt thereof and use thereof in treating and/or preventing diseases or disease states related to the phosphodiesterase type-5 in mammals.
The present invention relates to bismuth-titanium oxide composite nanowires used for photocatalysis, and a preparation method, belonging to the field of inorganic nanomaterials. The preparation of the bismuth-titanium oxide composite nanowires is: polyvinylpyrrolidone (PVP) and bismuth nitrate are added to N-N dimethylformamide (DMF), tetrabutyl titanate and acetylacetone are added after magnetic stirring has been performed for a period of time, continual stirring is performed for more than six hours, and a transparent, stable solution is obtained. Electrospinning is performed on the solution in an electrospinning generation device under certain conditions, and obtained electrospinning precursor nanofibres are air-fired in a muffle furnace to remove organic matter. After being cooled to room temperature, the electrospinning precursor nanofibres are placed in a tube furnace to be reduced and sintered in a hydrogen atmosphere. The method is energy-saving and environmentally friendly, the conditions are easy to control, costs are low, and large-scale industrial production is easy. The obtained bismuth-titanium oxide nanowires exhibit good degradation activity on methyl orange under illumination, the methyl orange degradation rate reaching more than 95% in a reaction lasting for 20 minutes. The obtained bismuth-titanium oxide nanowires have wide application prospects in relation to sewage treatment.
patents
