37results about How to "Easy to select" patented technology

The invention relates to a catalyst for preparing cyclohexanol by hydration of cyclohexene. The catalyst is composed of a carrier (HZSM-5) and a supported active component (B-acid-type N,N,N-trimethyl-N-sulfobutyl-ammonium bisulfate ionic liquid). The application method of the catalyst for preparing cyclohexanol by hydration of cyclohexene comprises the following steps: adding the catalyst, cyclohexene and water to a reactor, wherein the mass ratio of catalyst to cyclohexene to water is 1:(5-50):(50-500); and raising the reaction temperature to 80-180 DEG C and reacting for 1-6 hours to obtain cyclohexanol. The catalyst prepared by the preparation method is easy to separate and recover, does not corrode equipment and is environmentally friendly. Compared with the original methods for preparing cyclohexanol by non-homogeneous catalytic hydration of cyclohexene, the invention has the advantages that the catalyst has the advantages of high activity, high reaction rate and good selectivity.

The invention relates to a grammar error correction model training method and device, a grammar error correction method and device, computing equipment and a computer readable storage medium. The training method comprises the steps of performing data extension processing based on a first training set to obtain a second training set; obtaining a second source sample statement and a second target sample statement based on the second training set; inputting the second source sample statement into a grammar error correction model to generate an error correction sample statement; determining a lossvalue based on the error correction sample statement and the second target sample statement; and performing iterative training on the grammar error correction model based on the loss value until a training stop condition is met. By performing data enhancement processing on an existing training set, the purpose of automatically expanding the training set is achieved, and manual labor is effectively reduced.

The disclosure provides a target tracking method and apparatus based on human-machine interaction, and a storage medium. According to the method, a to-be-tracked target can be determined through a triggering instruction generated based on a target selection operation of a user without operation learning of multiple continuous frames of images, the acquisition operation of the target is reduced, and the target acquisition efficiency and the tracking efficiency can be improved; the dimension and the scale of a target image in a next frame can be detected based on extracted image characteristicsso that the tracking effect of a rigid target, a target with scale transformation, a target with high-speed motion, and a target which is shielded for a long time can be optimized to a certain extent,and the precision of target tracking is improved; and the effect of the operation efficiency and the target tracking can be guaranteed on general portable devices.

The present invention discloses a wireless searching system and comprises a receiving unit positioned in the server end, a first search unit, a third search unit, a word storehouse and a sending unit; wherein the receiving unit is used for receiving the character assemble of the mobile terminal sent through the wireless network and further more to receive the choose to the key search word sent by the mobile terminal; the word storehouse is used for storing word taking the character assemble as the index; the first search unit is used for matching word for the character assemble through searching the word storehouse; the third search unit is used for searching the information for the chosen key word of the receiving unit through the mobile terminal; and the sending unit is used for sending the searching result for the matching word of the first searching unit and the third unit back to the mobile terminal. The present invention also provides a corresponding method. The present invention can search the data quickly and conveniently through the mobile communication terminal.

The invention is suitable for the technical field of solar cells, and provides a selective contact area buried solar cell and a back contact structure thereof. The back contact structure comprises grooves arranged on the back of a silicon substrate at intervals; a first dielectric layer, arranged on the back surface of the silicon substrate and at least covers the groove; P-type doped regions and N-type doped regions arranged on the first dielectric layer and alternately arranged in the grooves; a second dielectric layer arranged between the P-type doped region and the N-type doped region, and the number of the second dielectric layer being at least one; and a conductive layer disposed on the P-type doped region and the N-type doped region. According to the back contact structure provided by the invention, the problems of high control requirement on the width of the groove and poor passivation effect in the prior art are solved.

The invention discloses a character determining method and device applied to a touch screen terminal. The method comprises the steps of determining whether to provide a plurality of candidate characters when detecting first contact information from a soft keyboard; if so, outputting a plurality of candidate characters, wherein the first area of each candidate character currently used is more than the second area of each candidate character used in the soft keyboard; determining a target character from the plurality of candidate characters. With the adoption of the method and the device, the plurality of candidate characters of which the area is increased can be provided while a user inputs the character through the soft keyboard, and thus the target character can be accurately selected from the soft keyboard.

The invention discloses an intelligent TV (television) and a channel input method thereof based on a touch remote controller. The method comprises the following steps that: after the intelligent TV confirms that a channel input command is received, channel numbers with single bits, which are annularly arranged in sequence, are displayed; one of the displayed channel numbers is selected as a selected channel number with a single bit, and the selected channel number is displayed in highlight; and if the intelligent TV confirms that channel input is finished, a channel corresponding to the selected channel number is switched to. When a user requires to switch channels, a ring of annularly arranged channel numbers are displayed on a display screen, the finger of the user can slide on a touch panel of the touch remote controller to select a channel number in a sliding way; and compared with that of the prior art, the requirements on the operation precision and accuracy of the user are greatly reduced, so that the channel input operation of the user can be facilitated.

The invention discloses an intelligent housing leasing system based on a block chain. The intelligent housing leasing system comprises a data input module, a data acquisition module, an access statistics module, a data analysis module, a transaction module, a transaction evaluation module, an investigation module, a database, a controller, a display module and a post-leasing management module, basic information and a basic house image of a house are obtained through the data input module, the data acquisition module and the database; counting the consulted times and consulted time of the housewithin 10 days before the current time of the system through an access counting module; the transaction information of the system within 10 days before the current time is counted through the transaction module; the communication condition is monitored between the renter of the house and the user at preset time intervals through the investigation module, and the concerned value of the house, therental attraction value of the corresponding region, the selling price deviation value of the house, the active reputation value of the renter of the house and the rental reference value of the houseaccording to a related algorithm. Are acquired

The invention discloses an airport scene monitoring video target segmentation method based on ADS-B position prior. Airport scene priori information ADS-B is applied to airport video target segmentation, and compared with a matching-based and propagation-based method, the method explores information from more previous frames in a reasoning process. According to the positioning information provided by the ADS-B, the content of the reference frame can be continuously updated, so that the reference frame is closer to the current frame. According to the scheme, the problem of space and time dislocation is solved, and the advantages of a propagation-based method and a matching-based method are combined, so that the network can continuously correct errors in the reasoning process, and the method has robustness for a long video.

The invention discloses a contractive mapping-based adaptive random frequency hopping sequence generation method. According to the technical schemes of the invention, the method includes the following steps that: an original sequence is defined, and the definition of a weight is deduced from the original sequence; at an initial stage, the weight is initialized; at a scanning frequency hopping stage, the weight is updated; at a random frequency hopping stage, the weight is updated again, so that a final weight can be obtained; cumulative distribution of the final weight is calculated; a contractive mapping relation is determined according to the cumulative distribution; and a final frequency hopping frequency number set is generated according to the contractive mapping relation. According to the contractive mapping-based adaptive random frequency hopping sequence generation method of the invention, frequency points suitable for data transmission are selected out in a communication process according to a probability, and at the same time, the probability can be updated adaptively according to the change of channel environment, and therefore, the transmission frequency points can converge onto an optimal frequency point, and reliable data transmission is realized; and the weight of which the value is an integer is adopted and is equivalent to the probability, and therefore, the implementation of practice application of the method can be facilitated. The method can be used for efficient data transmission in a frequency hopping system.

The invention relates to a catalyst for synthesizing diphenyl carbonate in phenol oxidative carbonylation as well as a preparation method and an application method of the catalyst. The catalyst comprises carrier rod-shaped nanometer CeO3 and an active component Pd compound, wherein the Pd compound is based on Pd, the weight ratio of the Pd to the CeO2 is 0.1: (10:100). The catalyst is used for synthesizing the diphenyl carbonate in the phenol oxidative carbonylation, solving the separation problem of a homogeneous Pd catalyst and overcoming the shortcomings that a conventional heterogeneous catalyst system is low in reaction rate and long in reaction time, and the like; meanwhile, by using the catalyst, the using amount of additives is reduced in the phenol oxidative carbonylation, only one additive is used, and the defects such as large using amount of the additives, multiple varieties, high difficulty in aftertreatment and high cost of a conventional reaction system are overcome. In addition, according to the method, the catalyst has relatively high activity all the time in the reaction process and can be repeatedly used.

The invention provides a set-top box random switching construction method based on user preferences. The method comprises the following steps: 1, initially setting equal preference indexes of a user specific to each channel, and setting unit time T; 2, counting the number of channels watched by the user according to the set unit time T; 3, reading the watching statistical data of the each watched channel, and constructing a random standby channel set; 4, generating a random number from the constructed frequency set, wherein a channel number corresponding to the random number indicates a randomly-switched channel. Through adoption of the method, channels can be generated randomly according to the watching habits and preferences of a user, and favorite channels of the user can be selected easily at a high hit rate.

An optional and improved locking device (10) for a metal container (18) mechanically deformed along a side surface extension and provided with a cutout (20) on the bottom, said device comprising: a circular planar seat (12), and the ends of which form the interface (14) to accommodate the body (16); the shaped mobile ring (22), which finally cooperates with the annular seal or annular diaphragm (24) placed at said interface, the said metal container (18) is inserted into this port starting from the respective bottom; a central flange (26) which defines said port into which the container (18) is inserted and surrounds the seal (24); Central ring (30), which shows a configuration complementary to the periphery of the bottom of the container itself, and provided with several through holes; a pusher (32), tensioned by a helical spring (34), along the longitudinal axis of said device (10) Placement; means to easily achieve a secure attachment to the bottom of the container (18) provided with the cutout (20).

The invention relates to a preparation method of a 3D printed optical-fiber preformed rod with a cross sectional structure in optional geometrical shapes. An optical-fiber preformed rod with different cross sectional structures is printed by designing different models and comprises an appearance structure and a core structure, the optical-fiber preformed rod can be further drawn into various special optical fibers with the cross sectional structure in different geometrical shapes and special optical fibers with specific light transmission and transformation properties, such as photonic crystal fibers, eccentric core fibers, multi-core optical fibers, optional polygonal optical fibers and optical fibers with an intersected structure, and the optical fibers have various unique light transmission and transformation properties and can meet the requirements of optical fiber communication and light sensing functions, so that various special functional optical fibers with specific light transmission and transformation properties can be provided.

The invention is suitable for the technical field of solar cells, and provides a selective contact area buried solar cell and a back contact structure thereof. The back contact structure comprises grooves arranged on the back of a silicon substrate at intervals; a first dielectric layer, arranged on the back surface of the silicon substrate; a first doped region, arranged on the first dielectric layer and arranged in the groove; a second doped region, arranged on the first dielectric layer and arranged outside the groove; a second dielectric layer, arranged between the first doped region and the second doped region, and the number of the second dielectric layer being at least one; and a conductive layer disposed on the first doped region and the second doped region. According to the back contact structure provided by the invention, the problems of high control requirement on the width of the groove and poor passivation effect in the prior art are solved.

The invention relates to a method and a device for eliminating enchytraeus albidus in soil for earthworm breeding. The device comprises a container, a first storage device, a second storage device, a light source device and a temperature control device. The container is filled with water, the first storage device is put in the water while the top of the first storage device is higher than the water level, the second storage device is arranged above the first storage device, the bottom of the second storage device is connected with the top of the first storage device, and the top of the second storage device is used for placement of earthworms mixed with enchytraeus albidus. The method includes steps: 1) preparing the earthworms mixed with the enchytraeus albidus; 2) preparing the devices; 3) putting the earthworms mixed with the enchytraeus albidus on the top of the second storage device; 4) after the earthworms move into water, picking out the enchytraeus albidus or the earthworms to realize separation. The method and the device for eliminating the enchytraeus albidus in soil for earthworm breeding have advantages of simplicity and convenience in operation, high efficiency, low cost and the like.

The invention discloses a preparation method for a carbon-based catalyst of composite metal. The method comprises: firstly, impregnating activated carbon into water with a temperature of 40-60 DEG C, and adding an oxidant to carry out surface oxidization treatment for 18-24 hours; then, taking out and drying the activated carbon, putting the dried activated carbon into 20-40% of a complex solution to carry out reflux treatment for 4-6 hours; and finally, taking out the activated carbon and putting the activated carbon into a high-temperature furnace with a temperature of 800-1000 DEG C and pressure intensity of 0.2-0.4 MPa to fix for 4-8 hours to obtain a catalyst of fatty nitrile hydrogenation reaction. The preparation method has the beneficial effects that: the operation is simple, convenient and quick; the prepared catalyst is high in catalytic activity and very strong in selectivity; the preparation process is simple; the metal is easily recycled; the catalyst can be repeatedly utilized for many times; the use cost of the catalyst is greatly reduced; and the influence to the environment is reduced to a great extent.

The invention relates to an operation prompting method and device for a soft keyboard. The method comprises the steps: carrying out corresponding operation prompts on all soft keys according to first characters of code values; separately detecting whether operation prompting modes of all the soft keys in a current page are consistent with operation prompts aiming at current key information or not; screening out candidate keys, of which the operation prompting modes are consistent with the aiming operation prompts, from the current page, and filtering off other soft keys; acquiring next characters of code values of all the candidate keys, and carrying out corresponding operation prompting on each candidate key again according to the next characters. According to the method and the device, target soft keys can be quickly positioned without occupying additional screen resources.

The invention relates to a catalyst for synthesizing diphenyl carbonate in phenol oxidative carbonylation as well as a preparation method and an application method of the catalyst. The catalyst comprises carrier rod-shaped nanometer CeO3 and an active component Pd compound, wherein the Pd compound is based on Pd, the weight ratio of the Pd to the CeO2 is 0.1: (10:100). The catalyst is used for synthesizing the diphenyl carbonate in the phenol oxidative carbonylation, solving the separation problem of a homogeneous Pd catalyst and overcoming the shortcomings that a conventional heterogeneous catalyst system is low in reaction rate and long in reaction time, and the like; meanwhile, by using the catalyst, the using amount of additives is reduced in the phenol oxidative carbonylation, only one additive is used, and the defects such as large using amount of the additives, multiple varieties, high difficulty in aftertreatment and high cost of a conventional reaction system are overcome. In addition, according to the method, the catalyst has relatively high activity all the time in the reaction process and can be repeatedly used.

The invention relates to a method for the oxidation of cyclohexane. The method comprises the step of enabling a liquid-phase mixture containing cyclohexane and hydrogen peroxide to contact a titanium-silicon molecular sieve under the oxidation reaction condition. The method is characterized in that the liquid-phase mixture further contains at least one alkali with the pKb being more than or equal to 4.5, and the molar ratio of the alkali to the hydrogen peroxide is (0.0001-0.1):1. The method provided by the invention is an environment-friendly synthesis process, is environment-friendly and is suitable for industrial production and application. In addition, the production process is easy to control, the catalytic oxidation activity is high, the selectivity of cyclohexanol is good, and the total selectivity of alcohol ketone is increased.

The invention discloses a preparation method for a carbon-based catalyst of composite metal. The method comprises: firstly, impregnating activated carbon into water with a temperature of 40-60 DEG C, and adding an oxidant to carry out surface oxidization treatment for 18-24 hours; then, taking out and drying the activated carbon, putting the dried activated carbon into 20-40% of a complex solution to carry out reflux treatment for 4-6 hours; and finally, taking out the activated carbon and putting the activated carbon into a high-temperature furnace with a temperature of 800-1000 DEG C and pressure intensity of 0.2-0.4 MPa to fix for 4-8 hours to obtain a catalyst of fatty nitrile hydrogenation reaction. The preparation method has the beneficial effects that: the operation is simple, convenient and quick; the prepared catalyst is high in catalytic activity and very strong in selectivity; the preparation process is simple; the metal is easily recycled; the catalyst can be repeatedly utilized for many times; the use cost of the catalyst is greatly reduced; and the influence to the environment is reduced to a great extent.

The invention discloses a content presentation and interaction method for a video application, and the method comprises the steps: displaying a first-level column classification label and a second-level column classification label on a display screen, wherein the first-level column classification label is located at the bottommost row of a page, and the second-level column classification label islocated at the upper row of the first-level column classification label; and enablin the first-level column classification labels or the second-level column classification labels of different types tobe presented in a horizontal transverse line. According to the invention, the interactive operation is concentrated in a certain part of area of the screen / interface, the visual angle is relatively concentrated, the selection operation of various video contents is facilitated, and the interactive operation efficiency is improved. The page hierarchical structure is flattened, so that the content cannot be buried too deeply, the skip interaction of the page hierarchy is reduced, and the content is convenient to browse. The initial content entry / poster (unfocused state) forms a streaming dynamiceffect on the background and is fixed with the selected content (focused state), a dynamic and static combined visual effect is formed, and the interestingness of the whole interface is improved.

The invention relates to a method for the oxidation of cyclohexane. The method comprises the step of enabling a liquid-phase mixture containing cyclohexane and hydrogen peroxide to contact a titanium-silicon molecular sieve under the oxidation reaction condition. The method is characterized in that the liquid-phase mixture further contains at least one alkali with the pKb being more than or equal to 4.5, and the molar ratio of the alkali to the hydrogen peroxide is (0.0001-0.1):1. The method provided by the invention is an environment-friendly synthesis process, is environment-friendly and is suitable for industrial production and application. In addition, the production process is easy to control, the catalytic oxidation activity is high, the selectivity of cyclohexanol is good, and the total selectivity of alcohol ketone is increased.

The invention is suitable for the technical field of solar cells, and provides a selective contact area buried solar cell and a back contact structure thereof. The back contact structure comprises grooves arranged on the back of a silicon substrate at intervals; first conductive regions and second conductive regions alternately arranged in the grooves, each first conductive region comprising a first dielectric layer and a first doped region which are sequentially arranged on the corresponding groove, and each second conductive region comprising a second doped region; a second dielectric layer arranged between the first conductive region and the second conductive region, and the number of the second dielectric layer being at least one; and a conductive layer disposed on the first conductive region and the second conductive region. According to the back contact structure provided by the invention, the problems of high control requirement on the width of the groove and poor passivation effect in the prior art are solved.

The invention provides a method for extracting limonin in lemon seeds by HPMC sedimentation assisted reversed micelles, and the method is used for extracting and preparing limonin in lemon grains or pieces of lemon grains. The method comprises the following steps: crushing raw materials; preparing a crude extracting solution; preparing a limonin primary extracting solution; preparing a reversed micelle extracting solution and a re-extraction water phase; performing pre-extraction on the reversed micelle extracting solution for the primary extracting solution, and separating out an upper-layerorganic phase; performing reversed extraction on the upper-layer organic phase through a reversed extraction water phase, and separating out a lower-layer water phase; hydrolyzing an acidic solution for the lower-layer water phase to prepare an acidolysis solution; and purifying the acidolysis solution to prepare limonin powder. The method for extracting limonin in lemon seeds by HPMC sedimentation assisted reversed micelles can sufficiently extract limonin in lemon peel residues, and is high in yield. The whole extracting method is simple in process, is low in cost, is beneficial for amplifying and performing industrial production; the method is simple and feasible, does not need a high-value complex apparatus, does not need professional training by a related operator, and is easily popularized.

The invention provides a method for extracting limonin in lemon seeds by HPMC sedimentation assisted reversed micelles, and the method is used for extracting and preparing limonin in lemon grains or pieces of lemon grains. The method comprises the following steps: crushing raw materials; preparing a crude extracting solution; preparing a limonin primary extracting solution; preparing a reversed micelle extracting solution and a re-extraction water phase; performing pre-extraction on the reversed micelle extracting solution for the primary extracting solution, and separating out an upper-layerorganic phase; performing reversed extraction on the upper-layer organic phase through a reversed extraction water phase, and separating out a lower-layer water phase; hydrolyzing an acidic solution for the lower-layer water phase to prepare an acidolysis solution; and purifying the acidolysis solution to prepare limonin powder. The method for extracting limonin in lemon seeds by HPMC sedimentation assisted reversed micelles can sufficiently extract limonin in lemon peel residues, and is high in yield. The whole extracting method is simple in process, is low in cost, is beneficial for amplifying and performing industrial production; the method is simple and feasible, does not need a high-value complex apparatus, does not need professional training by a related operator, and is easily popularized.

A lens driving device 1 is provided, in which a spring 11 includes an outer ring portion 11b that is fixed to a body 5, an inner ring portion 11a that is fixed to a lens support 7, and an arm portion 11c that connects the outer ring portion 11b and the inner ring portion 11a, and the lens support 7 is moved in an optical axis direction of a lens by way of an electromagnetic force that is generated by applying electric current to a coil 15 from a terminal member 6, the terminal member 6 including a superimposed portion 6a that is superimposed on the outer ring portion of 11b of the spring 11, and a power supply terminal 6b that protrudes from the superimposed portion 6a, and the terminal member 6 disposing the superimposed portion 6a between the outer ring portion 11b of the spring and the body 5.