32results about How to "Suitable for teaching" patented technology

The invention provides an endoscopy virtual surgery system with force feedback, which comprises a peripheral device for a user to directly operate, an interface connected with the peripheral device and responding to operations of the user, a display device, a simulation module connected with the interface and providing simulation environment and a force feedback model module enabling the user to be interacted with the virtual simulation module. The endoscopy virtual surgery system with force feedback enables the user to have touch feeling feedback and operation touch feeling interaction by using the module supporting force feedback, simultaneously enables the virtual environment of the whole virtual operation to be lifelike through a module simulating organ deformation, and is more suitable for research, teaching and training of surgical operation.

The invention discloses a carved oil sludge and a preparation method thereof, which is prepared from the following raw materials in parts by weight: paraffin wax 30-50, soft wax 8-20, vaseline 4-12, calcium carbonate 60-130, toner 0.2-0.8 , and the rest are trace moisture and impurities. The invention also discloses a preparation method thereof, the steps of which are: weighing each raw material in proportion; putting paraffin, soft wax, and vaseline into a reaction kettle for heating; adding calcium carbonate after the raw materials are melted, and stirring evenly in the reaction kettle until There is no fine powder for this purpose; add toner and stir until the toner is completely dissolved in all raw materials; remove from the fire, pour the obtained slurry into a container for cooling. The texture of the invention is hard and delicate at normal temperature, can be finely carved, can be softened at a slight temperature, does not stick to hands, and does not shrink.

The invention relates to a chloral hydrate permeabilization flaking method in microscopic identification of TC, which can effectively solve the problem of easy control, high efficiency and safety of chloral hydrate permeabilization. The method comprises the following steps: adding water in chloral hydrate for dissolving to obtain a chloral hydrate solution with mass concentration of 30-50%; adding 0.1-0.5g of traditional Chinese medicinal material powder into 2ml of chloral hydrate solution with mass concentration of 30-50% to prepare a mixture; filling the mixture into a container, preheating to 100-110 DEG C, then heating to 125-135 DEG C for 4-8 minutes, realizing permeabilization of the mixture; dropping the 1-2 drops of permeabilized mixture on a slide glass, adding 1-2 drops of dilute glycerin, uniformly mixing the traditional Chinese medicinal material powder on the slide glass, covering a coverslip, using an absorbent paper to remove overflowed liquid, and keeping the clean coverslip and slide glass. The flaking method can be effectively used for chloral hydrate permeabilization, and has the advantages of energy saving, safety, high efficiency, controllable performance, wide application and environmental protection, is especially suitable for teaching and scientific research, has strong utility value, and is great innovation of chloral hydrate permeabilization flaking method.

The invention discloses a teaching model for abdominal examination skill training during pregnancy. The teaching model comprises a pregnancy abdomen phantom, wherein the pregnancy abdomen phantom can be fixed to the abdomen of a whole female body mode, a uterus phantom and a pelvis inlet phantom are arranged in the pregnancy abdomen phantom, a fetus phantom is arranged in the uterus phantom, and liquid is filled between the fetus phantom and the inner wall of the uterus phantom. A first microphone is arranged on the fetus phantom and used for playing fetal heart sound and umbilical cord sound, a second microphone is arranged on the uterus phantom and used for playing uterine souffle, placental souffle and aorta abdominalis souffle, and the first microphone and the second microphone are in signal connection with a player. A vibration device for simulating fetal movement is arranged on the fetus phantom and is in signal connection with the controller. The teaching model for abdominal examination skill training during pregnancy has the advantages of being simple in structure, good in simulation performance and good in teaching effect.

The invention discloses a gyroscopic effect demonstrator. The gyroscopic effect demonstrator comprises a base. The gyroscopic effect demonstrator is characterized by further comprising a storage battery arranged on he base, a vertical rod, an electric brush carrier located on the vertical rod and formed by a bottom plate and a non-conductor electric brush sleeve rods equipped with upper and lower non-conductor electric brush sleeves, a rotating shaft crossed through a bottom plate hole on the bottom plate of the electric brush carrier and inserted to a blind hole of the vertical rod, a non-conductor metal electric brush ring base arranged with upper and lower metal electric brush rings on the rotating shaft, an operation handle fixed by a screw and an inside thread at the upper end face of the rotating shaft, and a U-shaped lower bracket, a reverse-U shaped upper bracket linked and rotated with two end parts of the U-shaped lower bracket through threads, and an airplane model body fixed on the reverse-U shaped upper bracket, wherein the lower end face of the airplane model body is provided with an upper airplane model plate arranged with a front support, a middle support and a back support, and the upper end face is provided with a lower airplane model plate arranged with a gyroscopic mini-sized direct current motor on an output shaft. Upper and lower electric brushes are arranged in the upper and lower non-conductor brush sleeves; upper and lower metal electric brush ring wiring terminals are drawn out by upper and lower metal electric brush rings. The gyroscopic effect demonstrator is applied to teach.

The invention provides a simulative experience system and method for storing dangerous chemicals. The system comprises a virtual projection device, terminal equipment and a processing unit, wherein the virtual projection device is used for generating a virtual goods projection, the terminal equipment is used for displaying a virtual goods shelf and virtual goods, and placing the virtual goods to be allocated; the processing unit is used for evaluating the safety of the placing operation according to the final placing position of the virtual goods on the virtual goods shelf. Through the simulative experience, a user can visually know the rule of storing dangerous chemicals, and it is avoided that unnecessary serious consequences are generated when the chemicals are improperly stored, traditional rigid teaching in the form of words is abandoned, through the simulative experience of virtual objects, the system is more vivid, the learning effect is more obvious, personnel management and training of all industries related to dangerous chemicals are facilitated, and the simulative experience system and method for storing dangerous chemicals have the advantages of being low in cost, highin extensibility, and wide in application range, and are particularly suitable for teaching.

The invention relates to a space grid structure demonstration apparatus for displaying the visual persistence phenomenon. The space grid structure demonstration apparatus for displaying the visual persistence phenomenon includes a frame and a pallet rotation shafting, wherein the pallet rotation shafting includes a first rotation shaft and a pallet fixed on the first rotation shaft; the first rotation shaft is arranged on the frame through a first bearing pedestal; a space grid structure is arranged on the pallet; the space grid structure and the pallet coaxially rotate following the first rotation shaft; the space grid structure includes a group of planar attitude contour model units which form continuous action; the attitude contour model units are uniformly arranged at intervals in the rotation circumferential direction of the space grid structure; and the planes of the attitude contour model units are parallel to the radial direction of the pallet; the corresponding positions between the adjacent attitude contour model units are connected through a smooth connecting line to form the integrated space grid structure. The space grid structure demonstration apparatus for displaying the visual persistence phenomenon allows a visitor or a learner to understand the visual persistence phenomenon and the principle of animation and films more visually and vividly, and is suitable for long period of teaching.

The invention discloses a mixed play system for multiple audio files and a control method for the mixed play system. The mixed play system comprises an audio processor, an SDRAM (Synchronous Dynamic Random Access Memory) memory, an NAND (Not And) Flash memory, an analyzer and a programming system, wherein the programming system is used for receiving an external instruction to obtain a time sequence file name; the system program is used for finding a corresponding time sequence file in the NAND Flash memory and finding positions of all audio file data required to be played in the NAND Flash memory according to basic data information of the time sequence file; the position of the audio data in a time slice of the audio file in each command line by the system program; and finally, the data are decoded and played by the audio processor, thereby realizing that certain audio file is played in certain tile slice, starting playing any audio file from any time point and ending at any time point and managing the whole play process through a specified time sequence file.

The invention specifically relates to an industrial X-ray flaw detection-based welding defect negative assessment method for teaching. The method comprises the following steps of automatically obtaining a welding negative numerical value; performing error analysis on a welding negative parameter; performing grade assessment on different types of welding defects; performing secondary operation grading on the welding negative numerical value; when different defect types exist in a single negative, outputting the grade of each defect; and if part of defect numerical values exceed a preset numerical value range, performing the fourth step of performing secondary operation grading on the defects. The single negative is subjected to comprehensive calculation grading; if the negative has the twotypes of the defects, the grade of the single negative is a grade obtained by subtracting 1 from the sum of the grades of the two defects after grading; if the negative has the three types of the defects, the grade of the single negative is a grade obtained by subtracting 2 from the sum of the grades of the three defects after grading; and a comprehensive calculation result is output. The method is simple and quick in calculation, thereby being suitable for use in daily teaching.

The invention discloses a multifunctional teaching device based on big data education, and relates to the field of big data teaching. The multifunctional teaching device comprises a supporting vertical rod, wherein overturning grooves are vertically formed in the two side edges of the supporting vertical rod; clamping rod grooves are vertically formed in the positions, close to the top ends of theoverturning grooves, of the supporting vertical rod; extending supporting rods are horizontally inserted into the inner side edges of the overturning grooves; rolling balls are clamped to the bottomfaces of the extending supporting rods; the top faces of the extending supporting rods are vertically and downwards in threaded connection with abutting screw rods; a side sliding groove is verticallyformed in one side edge of the supporting vertical rod; the top end of the supporting vertical rod is vertically sleeved with a movable sleeve rod; a rotating groove is formed in the side edge of themovable sleeve rod; and a rotating disc is clamped to the inner side edge of the rotating groove. The device is simple in design structure and convenient to operate, the storage type design is adopted, the device is stored when not used, space is not occupied, meanwhile, moving and carrying are convenient, and through multiple function combination, the device is more suitable for teaching.

The invention relates to a reaction observing device used for chemical experiments. The reaction observing device comprises a reaction bottle, a loading sleeve and an end cover, an external thread isarranged on the outer wall of the top of the reaction bottle, an outer sleeve matched with the reaction bottle is arranged on the exterior of the loading sleeve, an internal thread is arranged on theinner wall of the outer sleeve, the loading sleeve is divided into a lower bottle middle segment and an upper connecting segment through the outer sleeve, the lower bottle middle segment is located inthe reaction bottle, a sealing cover which is detachable is arranged at the bottom of the lower bottle middle segment and separated from the lower bottle middle segment under the effect of external force, a ventilating pipe is arranged in the center of the end cover, the top of the ventilating pipe extends out of the top end of the end cover and is connected with a balloon, and the length of theventilating pipe is larger than the height of the loading sleeve. Through the device, the chemical experiments can be conducted in an airtight environment and will not be affected by the environment,in this way, the accuracy of the experiments is guaranteed, meanwhile, the arranged balloon can store gas released in a reaction, and students can conveniently observe the progress of the experiments.

The invention discloses a mathematics teaching apparatus, which comprises a desk body. The upper surface of the desk body is equipped with a teaching board and two fixation frames. The fixation framesare in L shape; and the teaching board is cooperated with the fixation frames. The side portion of the desk body is equipped with a pen container lifting device. The teaching board is equipped with an angle stable rotation superposition mathematics geometric demonstration device. A light-transmitting plate having an opaque geometric figure rod is combined with an accent light; and the opaque geometric figure rod can shield light, passing through the light-transmitting plate, of the accent light to enable the light to be projected onto a blackboard to form a geometric figure corresponding to the opaque geometric figure rod, so that a standard geometric figure can be formed on the blackboard without manual drawing on the blackboard by a teacher, and it is convenient for students to deepen their understanding. The mathematics teaching apparatus is suitable for teaching.

The invention provides a projector with shooting and recording functions. The projector is provided with a camera and a recording jack on a machine body. Through the abovementioned settings, in a using process, the projector have the shooting and recording functions at the same time, direct connection with a computer can be realized through a USB socket, so that shooting and recording can be performed simultaneously, and thus the projector is very suitable for use in teaching.

A traditional electronic helminth model is just driven by a motor to linearly move forward and backward, and does not reflect motions of a natural helminth in the process. The invention provides a bionic electronic helminth model which can simulate motion forms of the wriggling natural helminth. The bionic electronic helminth model comprises a front helminth segment, a middle helminth segment, a rear helminth segment, a central processing unit, a limiting sensor and a driving motor, wherein the front helminth segment, the middle helminth segment and the rear helminth segment are connected through hinge structures, and the front helminth segment, the middle helminth segment and the rear helminth segment can be controlled to move step by step so as to realize simulated movement of the electronic helminth model. Compared with the traditional electronic helminth model, the bionic electronic helminth model has the advantages that difficult movements of the electronic helminth model are realized through a simple structure, control through the sensor is integrated so that knowledge points related to sensor control modes and principles can be involved, and the bionic electronic helminth model is applicable to teaching.

A marble-like blackboard is made up from adhesive, cement, water, metal wire mesh and concrete filler through uniformly and curing. Its advantages include high durability and water resistance, no need of painting, no toxic by-effect and low cost.

The invention discloses a multifunctional teaching device based on big data education, which relates to the field of big data teaching, and includes a support pole, the two sides of the support pole are vertically provided with turning grooves, and the support pole Near the top of the overturning groove, there is a lever groove vertically opened, and an extension pole is horizontally inserted into the inner side of the overturning groove, and a rolling ball is clamped on the bottom surface of the extension pole, and the top of the extension pole A top screw is threaded vertically downward, and a side chute is vertically opened on one side of the support pole, and a movable sleeve rod is vertically sleeved on the top of the support pole, and the movable sleeve The side of the rod is provided with a rotating groove, and the inner side of the rotating groove is clamped with a rotating disk. The device of the present invention has a simple design structure and is easy to operate. The storage-type design is adopted so that it does not take up space when not in use, and at the same time, it is convenient to move and carry. The combination of multiple functions makes it more suitable for teaching use.

The invention discloses a gyroscopic effect demonstrator. The gyroscopic effect demonstrator comprises a base. The gyroscopic effect demonstrator is characterized by further comprising a storage battery arranged on he base, a vertical rod, an electric brush carrier located on the vertical rod and formed by a bottom plate and a non-conductor electric brush sleeve rods equipped with upper and lower non-conductor electric brush sleeves, a rotating shaft crossed through a bottom plate hole on the bottom plate of the electric brush carrier and inserted to a blind hole of the vertical rod, a non-conductor metal electric brush ring base arranged with upper and lower metal electric brush rings on the rotating shaft, an operation handle fixed by a screw and an inside thread at the upper end face of the rotating shaft, and a U-shaped lower bracket, a reverse-U shaped upper bracket linked and rotated with two end parts of the U-shaped lower bracket through threads, and an airplane model body fixed on the reverse-U shaped upper bracket, wherein the lower end face of the airplane model body is provided with an upper airplane model plate arranged with a front support, a middle support and a back support, and the upper end face is provided with a lower airplane model plate arranged with a gyroscopic mini-sized direct current motor on an output shaft. Upper and lower electric brushes are arranged in the upper and lower non-conductor brush sleeves; upper and lower metal electric brush ring wiring terminals are drawn out by upper and lower metal electric brush rings. The gyroscopic effect demonstrator is applied to teach.

The invention discloses a diaphragm motion model for teaching and application thereof. The model is mainly composed of a glass cover, a glass tube, a balloon, a rubber film and an airflow opening andclosing device, the balloon is located in the glass cover, the lower end of the glass tube is connected with the balloon, the upper end is communicated with the outside through a glass cover upper opening, the rubber film is tied to a glass cover lower opening, and the airflow opening and closing device is installed at the upper end of the glass tube. The model is used by the following steps thatthe airflow opening and closing device is closed, and the rubber film is pushed upwards without reducing the balloon; the airflow opening and closing device is opened, and the balloon shrinks to discharge air; the airflow opening and closing device is closed, the rubber film is loosened or pulled down, and the balloon is not expanded; the air flow opening and closing device is opened to expand theballoon to suck air. Through the use of the diaphragm motion model, students can more fully understand the causal relationship of expiration caused by reduction of thorax volume and inspiration caused by increase of thorax volume. The model is simple in structure, convenient to operate and suitable for teaching. The model and the application thereof can be made into paper or electronic publications in the form of characters and pictures, and can also be made into audio and video products in the form of audios and videos for teaching.

The invention discloses a multifunctional teaching ruler. The multifunctional teaching ruler comprises a set square. A compasses leg is rotatably connected to the side wall of the lower end of the setsquare. A straight rack is rotatably connected to the side wall of the compasses leg. A guide rail is arranged on the side wall of the set square. The straight rack is slidably connected with the guide rail. A gear is rotatably connected to the side wall of the set square and matched with the straight rack. A chalk clamping cap is arranged at the end, away from a revolute pair, of the compasses leg. A compasses centre is rotatably connected to the end, close to the chalk clamping cap, of the set square. A positioning stop lever is fixedly connected to the side wall of the compasses centre. Apositioning pin sleeve is fixedly connected to the side wall of the set square. A positioning pin is slidably connected into the positioning pin sleeve. The multifunctional teaching ruler is simple and reasonable in structure, complete in function, convenient to operate, small in size, convenient to carry and suitable for teaching.

The invention relates to the technical field of oral cavity auxiliary learning equipment, in particular to a double-layer resin tooth for oral tooth preparation training. According to the technical scheme, the double-layer resin tooth comprises a gum protection box, a gum body is fixedly arranged in the gum protection box, a resin tooth body is installed on one side of the gum body, a protection mechanism is arranged on the gum protection box and comprises a cover plate, a mounting hole is formed in the cover plate, and a mounting bolt is arranged in the mounting hole. A connecting rod is rotationally connected to one side of the mounting bolt, a fixing sleeve is rotationally connected to the other end of the connecting rod, and a connecting bolt is arranged in the fixing sleeve in a sleeved mode. The double-layer resin tooth is novel and compact in structure, preparation training of teeth is more intuitive, the teeth are convenient to disassemble and replace, the learning effect is improved, damaged single teeth are replaced, the service life of the resin dental cast is prolonged, the cost is reduced, and the double-layer resin tooth is suitable for popularization and application.

The invention belongs to the technical field of teaching aids and relates to a multifunctional combined wireless laser pen. The multifunctional combined wireless laser pen is characterized by comprising a pen cap, a pen body, a USB (universal serial bus) flash drive and MP3 (moving picture experts group audio layer 3) player, a signal receiver and a signal emitter. Due to integration of the USB flash drive and the MP3 player, a teacher can copy data in the USB flash drive to a computer before class and can use the MP3 player to enjoy music for relieving fatigue after class; the signal receiver can be inserted to the computer to receive signals of the emitter so as to make it convenient for page turning in class; the laser pen is further provided with a wireless earphone and a wireless earphone plug. The multifunctional combined wireless laser pen has the advantages that demands of electronic teaching data storage and copying, homework correcting, listening to the music in after-class time, page turning and the like in teaching with modern information approaches are satisfied for teachers, and the multifunctional combined wireless laser pen can meet requirements on teaching and reporting on different occasions.

The invention provides an education robot and a control system thereof. The education robot comprises a robot body and a functional assembly which is detachably connected with the robot body; the robot main body is constructed to serve as a carrier of the movable functional assembly and is in control connection with the functional assembly through a medium; and the function assembly is constructedto be used as a function extension of the robot main body. To sum up, the robot main body can be used as a mobile device by using the functional assembly to be detachably matched with the robot mainbody, and different functional assemblies are additionally arranged on the robot main body to form robots with different functions, so that the adaptability is very good; through an obstacle detector,multiple two-dimensional plane coordinate information of all obstacles in the front can be measured, finally, three-dimensional coordinate information of the fixed obstacle and the real-time moving trend of the moving obstacle are converted, the collision event with the moving obstacle can be effectively prevented, and the education robot is simple in overall structure, convenient to disassembleand assemble and suitable for teaching use.

The invention discloses sculpture cement gum for arts and crafts. The sculpture cement gum is prepared from the following raw materials in parts by weight: 80-100 parts of carboxymethyl cellulose CMC,80-100 parts of carboxymethyl cellulose CMS, 4-10 parts of dioctyl isophthalate, 40-60 parts of glycerol, 0.6-5 parts of sodium benzoate, 100-120 parts of light shortite, 60-80 parts of magnesium carbonate, 120-130 parts of talcum powder, 120-130 parts of titanium dioxide and 350-390 parts of purified water. The sculpture cement gum prepared has the advantages of being uniform in color and luster, slight in fragrance, extremely low in toxicity, fewer in impurities, resistant to cold and heat, good in adhesion force, free of pollution and the like. Art and craft sculpture prepared from the cement gum has the advantages of being resistant to wind and rain, not liable to crack and deform, suitable for long-term storage and the like, and is further suitable for teaching use.

Provided in the invention is a projector with a camera device. A camera plugging hole and a recording plugging hole are formed in the side of a projector body. When the projector is in use, the shooting and recording functions can be realized. Therefore, the projector can be connected with a computer directly by a USB port and thus shooting can be carried out simultaneously. The projector can be applied to teaching.

The invention discloses an in-vivo rabbit small intestine movement test box and a test device. A box body of the test box is of a closed square hollow structure with an upper opening; constant-temperature heating elements are fixedly arranged outside at least one transverse side wall and / or the bottom wall of the box body; the upper end of one longitudinal side wall of the box body is connected with an inclined groove inclining outwards and upwards; upward groove walls are arranged on the two sides of the inclined groove, and constant-temperature heating elements are fixedly arranged outside the bottom wall of the inclined groove. The two transverse side walls or the side walls and the bottom wall which are longitudinally connected with the inclined groove of the box body are magnetic metal walls, and the bottoms of magnetic small intestine fixers are magnetically pasted on the magnetic metal walls. The test device comprises the test box and is fixedly arranged on the lower portion ofa support; a tension transducer is fixedly arranged on the support above the test box; the upper end of a tension line is connected with the tension transducer, and the lower end of the tension line is perpendicular to the interior of the test box. During in-vivo tests, oxygen does not need to be independently supplied to rabbits, interference of respiration and heartbeat on small intestine movement can be effectively eliminated, the intestinal loop is long in survival time, the rabbits can be repeatedly tested, and the test box and the test device can be suitable for teaching and drug research application.

The invention discloses a Mach-Zehnder fiber optic interferometer vibration influence testing system which comprises a Mach-Zehnder fiber optic interferometer, an excitation device and a monitoring device. The excitation device comprises a signal generator, a noise generator and a loudspeaker. The signal generator is used for generating vibration of certain frequency and amplitude. The loudspeaker is installed over a rectangular wood packaging box. The monitoring device comprises an acceleration sensor and a network analyzer. The influence on the Mach-Zehnder fiber optic interferometer from vibration is displayed simply and clearly, the influence on the Mach-Zehnder fiber optic interferometer from vibration carried out before a feedback control loop can be tested and measured, the amplitude and the frequency of generated vibration are adjusted at any time, and the system is simple in structure, easy to operate and suitable for teaching.

The invention relates to the technical field of paper sludge, and in particular to a paper sludge preparation method and a paper sludge preservation method. The paper sludge preparation method comprises the following steps: (A) collecting waste paper, and crushing the waste paper so as to obtain scrap paper; (B) soaking the scrap paper, stirring the scrap paper, dehydrating the scrap paper, and purpling the scrap paper so as to obtain paper pulp; and (C) adding a conditioning agent into the paper pulp, and performing stirring, thereby obtaining paper sludge, wherein the weight part ratio of the paper pulp to the conditioning agent is (1-2):(3-5); and the conditioning agent comprises the following raw materials in parts by weight: 1000-1200 parts of water, 300-400 parts of white latex, 750-900 parts of cellulose, 0.1-5 parts of a dispersing agent and 1-5 parts of a preservative. The paper sludge prepared by using the paper sludge preparation method is free of cracking when being dried, is dry and firm, is free of moisture absorption, and is good in texture quality after being hardened; and paper cakes which are prepared from the paper pulp through extrusion, dehydration and drying can be preserved for a long time, and the paper pulp does not stink.

The invention discloses a contradiction matrix teaching device based on a theory of inventive problem solving (TRIZ). The contradiction matrix teaching device based on the TRIZ comprises a plurality of strip-type shells distributed in columns, the strip-type shells are connected in series through cables to form a bamboo slip mechanism capable of displaying a contradiction matrix table, the bambooslip mechanism is provided with table cells corresponding to all grids in the contradiction matrix table, a turnover mechanism is arranged in the table cell corresponding to a theory serial number grid, and a normally-opened touch switch and a laser transmitter are installed on the table cell corresponding to a general engineering parameter. The contradiction matrix teaching device based on the TRIZ is a bamboo slip type device which can be wound conveniently, using is flexible and convenient, occupied space is small, hoisting is facilitated, teaching is suitable, a display plate normally displays theory serial numbers in a natural state, the theory serial numbers on the end surface of the display plate cannot be observed after the display plate is overturned, and teacher questioning is facilitated; lasers are emitted through a first transmitter and a second transmitter, the crossing position of the two lasers is the theory serial number of a cross point of two general engineering parameters, students can conveniently learn, valuable teaching time can be shortened, and the teaching efficiency is improved.