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

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 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 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 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.

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 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 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.

An education and teaching device comprises a box body device, a lifting device and a conversion device, wherein the lifting device and the conversion device are installed in the box body device, the conversion device is installed on the lifting device, cards are changed through the conversion device to assist learning, and the education and teaching device is high in interestingness, suitable forteaching, easy to operate, small in size, convenient to carry and high in practicability. The two display ports are directly compared, so the learning efficiency is improved.

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.