135results about How to "Weight change" patented technology

The invention discloses a skin cancer image recognition method based on an attention convolutional neural network, and the method comprises the steps: 1) carrying out the preprocessing of an image, which comprises the steps of image overturning, rotation, and affine transformation; 2) performing unbalanced sampling on the image, and performing undersampling on the image; 3) establishing a convolutional neural network framework which comprises a convolutional layer, a pooling layer and a full connection layer; 4) establishing an attention mechanism which comprises a channel attention module anda space attention module; and 5) designing an attention convolutional neural network to identify the skin cancer picture, wherein the network added with the attention module can be positioned in a local area more accurately, and images are mined with distinctive characteristics; and 6) performing transfer learning, and initializing parameters of the convolutional neural network by using the parameters of the pre-training network. Through the method of the invention, the accuracy of skin cancer image recognition can be effectively improved, and the development of artificial intelligence in themedical industry is promoted to a certain extent.

A method of (and associated system and computer program product for) providing a rating for a software product (205). The rating is obtained from a plurality of member users. A member user (405) submits (320) feedback data (215), that may be stored in a database (220), using an interface (415) provided on a member user terminal (210), the feedback data (215) related to the software product. A member user submitting feedback data (215) has a member user weighting, a member user weighting is preferably obtained (330) from one or more other member users, or may be initially allocated as a default weighting. The rating for the software product (205) is determined (340) at least partially based on the feedback data (215) and the member user weighting of the member user who submitted the feedback data (215). The rating may be determined or adjusted by feedback data and respective member user weightings received from other member users.

A method of managing connectivity between an end-device and one of a plurality of bridging-devices connected to the end-device. The method includes transmitting test messages by each of the bridging-devices, transmitting test messages by the end-device, determining, in each of the bridging-devices, with which of the other devices there is an operative connection, based on the test messages the bridging-device receives and determining, in each of the bridging-devices, whether a port leading to the end-device should be in a forwarding or blocking state responsive to the determination of the operative connections.

The invention discloses a material performance testing system under the suspension type multi-field coupling action in a supergravity environment. The material performance testing system comprises a hoisting sealed cabin, a bearing frame, a high-temperature furnace, a mechanical testing device and a buffer device; the bearing frame and the high-temperature furnace are fixedly installed inside the hoisting sealed cabin, the bearing frame covers the high-temperature furnace, the buffer device is installed at the bottom inside the high-temperature furnace, the upper end and the lower end of the mechanical testing device are connected to the top of the bearing frame and the bottom of the high-temperature furnace, and the sample is connected and installed at the tail end of the mechanical testing device. The material performance testing system solves the problem of material dynamic performance testing under the coupling action of volume force-surface force-temperature under the high-speed rotation state, and is simple in structure, convenient to operate, safe and reliable.

The invention discloses a self-deoiling type water surface oil stain adsorption ball, and belongs to the technical field of water body pollution treatment. According to the invention, an adsorption ball body provided with an oil absorption cotton material can rapidly adsorb oil stains, and the oil stains adsorbed by the adsorption ball body can be diffused in an oil guide rope and an oil collection ball which are connected with the adsorption ball body and are made of the same material, so that part of the oil stain is guided to the oil collection ball; the oil collection ball is soaked in anoil stain emulsifying agent, the emulsifying agent can emulsify and decompose the oil stain in the oil collection ball and perform automatic deoiling, a specially-made expansion and shrinkage ball anda water guide net set matched with the specially-made expansion and shrinkage ball are arranged, and the water guide net set can guide water to the expansion and shrinkage ball, so that the expansionand shrinkage ball can achieve automatic repeated expansion and shrinkage; and the adjacent expansion and shrinkage balls intermittently extrude the oil collection ball between the expansion and shrinkage balls to extrude out oil stains adsorbed in the oil collection ball, so that deoiling is accelerated, the adsorption balls can adsorb and deoil at the same time, the oil adsorption capacity of the adsorption balls is greatly improved, and then the treatment efficiency is greatly improved.

Cymbals and generally flat sheet instruments, as well as compound instruments, are formed using welding process and metal melting processes to form holes and edges with thickened edges from the melting processes, to join sections of metal, to add metal by creating beads at desired locations, to join sections with differing hardness and / or thickness, to create compound cymbals and compound flat sheet instruments by joint welding cymbals or sheet instruments together. The invention also includes cymbals and bells and various combinations and shapes thereof and the unique overtones attained thereby.

The invention discloses a preparation method of a porous alumina ceramic plate. The preparation method comprises following steps: 1, a slurry is prepared, wherein alumina powder, a sintering aid, a solvent, a dispersant, a plasticizer, and a binder are subjected to ball milling, and are mixed uniformly so as to obtain a slurry; 2, tape casting is carried out, wherein the slurry obtained in step 1is subjected to vacuum stirring defoaming, and is subjected to tape casting so as to obtain a ceramic blank; and 3, sintering is carried out, wherein the ceramic blank obtained in step 2 is subjectedto drying, thermal insulation degumming, sintering, and cooling so as to obtain the porous alumina ceramic plate. The porous alumina ceramic plate is low in preparation cost, high in porosity, and smooth in surface.

The invention discloses a hybrid-propulsion underwater vehicle.A vehicle sealing cabin is in the shape of a flat oval, each of the front portion and the rear portion of a cabin body is of a steamlined structure, four flapping wing driving devices are symmetrically mounted on the side walls of the vehicle, a battery, a voltage conversion module and an AD / DA module are fixed in the sealing cabin respectively, a posture sensor module and a PC104 control mainboard are positioned at two ends of the battery, a BD module is mounted on one side of the PC104 control mainboard and positioned behind the AD / DA module, a GPS (global positioning system) positioning module is positioned on the rear portion of the sealing cabin, a water sac is fixed on the front portion of the sealing cabin, an electromagnetic valve and a water pump are connected through a cable and positioned between the water sac and the sensor module, the water pump is communicated to the outside of the sealing cabin body through a silicone tube, and a sonar is mounted at the front end of the sealing cabin.A mode combining flapping wing propulsion and gliding propulsion is adopted, and little energy is consumed in the process of long-distance navigation through reasonable structural layout and changing in movement mode of flapping wings, so that energy resource utilization rate is increased.

The invention discloses an airbag type ventilation and drainage positive and negative pressure water hammer control valve group. The airbag type ventilation and drainage positive and negative pressure water hammer control valve group is arranged on an infusion pipeline or a container system and comprises a water hammer relief valve, a trace exhaust valve, a high-speed exhaust valve, a rear regulating valve, a negative pressure air suction valve, a manual venting and draining valve and a monitoring pressure gauge; the rear regulating valve is arranged at the outlet end of the high-speed exhaust valve; the water hammer relief valve is directly connected with the top or the lateral side of the negative pressure air suction valve through threads or a flange; the trace exhaust valve is connected with a hole which is formed in the front of the water hammer relief valve; the high-speed exhaust valve is directly connected with the top or the lateral side of the negative pressure air suction valve through threads or a flange; the negative pressure air suction valve is connected with the external infusion pipeline. According to the airbag type ventilation and drainage positive and negative pressure water hammer control valve group which is integrated and omni-directional, the structure is compact and firm, the conveying and the installation are convenient, the reliability is strong, the positive pressure water hammer can be relieved, the relief speed is high, and the water hammer of cavities collapsing due to the negative pressure can be inhibited.

The invention discloses a suspension coupling test testing stand, comprising an under carriage, a portal frame body, an upper support, a straight line guidance light pillar, a counterweight shoe plate, a straight line bearing, a shaking table, various U-shaped clamps, a force transducer, a displacement sensor, a speed transmitter, an accelerometer, a data acquisition system, a radial translating roller push rod disc cam mechanism, a belt drive secondary deceleration power transmission mechanism, a frequency converter, etc. The frequency converter adjusts the rotational speed of a motor; the secondary deceleration power transmission mechanism drives a cam to rotate; the roller push rod disc cam mechanism is guided by a trapezoid mounting rack to push the shaking table. The suspension coupling test testing stand has the characteristics of simple structure, convenient maintenance, large test scope, numerous objects and high innovation practical value, employs a novel cam mechanism for driving, provides large load excitation, replaces cams of different line types to realize sine excitations and random excitations of different amplitudes and frequencies, and can perform coupling tests between a steel plate spring, a helical spring, an air spring and a damper.

The invention relates to a special vibration roller for the construction of pervious concrete road surface, which includes a frame and rolling wheels arranged at the lower part of the frame; the rolling wheel is hollow and cylindrical in shape and includes a forward rolling wheel and a backward rolling wheel which are parallel to each other. Each side of the two rolling wheels is respectively provided with a water inlet used for filling the counterweight water and is communicated with an internal cavity thereof. The shafts of the two rolling wheels are connected with an electric motor arranged on the frame; and also a vibrator is fixedly arranged on the frame. The vibration roller has the functions of vibration, rolling, automatic movement and regulation with counterweight, thus satisfying the strength requirement of the pervious concrete and guaranteeing a certain pore space of the road surface so as to meet the requirement of water permeability. The vibration roller can vibrate and roll continuously and simultaneously, and can lead the pervious concrete to be compact and the road surface to be flat and level simultaneously. The overall weight of the rolling wheel can be changed by filling water through the water inlet on the side of the rolling wheel, thus realizing the construction of the vibration rolling forming on the pervious concrete with different thicknesses.

The invention provides a pervious concrete pavement paving construction special leveling roller, which comprises a roller and two pull bars connected on two ends of the roller; in which, the roller is a hollow cylinder with a water inlet for filling into counterweight water formed on the side connected with the inner space, the roller has supports on the two ends; a bearing is disposed on each support; a hinged support is fixed on each bearing; the hinged support is hinged with the pull bar through a movable hinge; and the other end of each pull bar is connected with a handle. The invention can not only roll and level the laid concrete by manpower push-and-pull, but also can adjust the roller counterweight according to working property of the concrete mixture to ensure both the strength of the pervious concrete pavement and the porosity of the pavement and water penetration; and is especially suitable for pavement construction of thin pervious pavement.

The invention provides daily-use ceramic bowl vibration polishing equipment based on negative pressure attachment, and relates to the field of ceramic bowl machining. The daily-use ceramic bowl vibration polishing equipment based on negative pressure attachment comprises a base, supporting legs are fixedly connected to the periphery of the upper surface of the base, a supporting plate is fixedly connected to the upper surfaces of the supporting legs, first bolts are arranged on the inner wall of the supporting plate, the tops of the surfaces of first threads are in threaded connection with first fixing blocks, and the upper surfaces of the first fixing blocks are fixedly connected with first clamping rings. According to the daily-use ceramic bowl vibration polishing equipment based on negative pressure attachment, a piston block moves upwards, negative pressure is generated below the piston block, certain adsorption capacity is achieved on a ceramic bowl through an air hole, so that the problem that in the case of existing daily-use ceramic bowl vibration polishing equipment, when the ceramic bowl is fixed through a clamp, the clamping force of the clamp to the ceramic bowl is relatively small, so that during polishing, the ceramic bowl is prone to falling off, and then the polished ceramic bowl is inconvenient to take out is effectively solved.

Disclosed are dry clutch control method and apparatus for a vehicle. The method may include a reference speed generating step of generating a virtual target input shaft speed from a wheel speed, a vibration recognizing step of detecting a vibration component based on a difference between an actually measured input shaft speed and the virtual target input shaft speed, and a control input step of additionally applying an anti judder control input to a clutch control torque controlling a dry clutch connected to an input shaft. The anti judder control input may be applied to the vibration component recognized in the vibration recognizing step in a form of being continuously damped starting from an impulsive control input.

Cymbals and generally flat sheet instruments, as well as compound instruments, are formed using welding process and metal melting processes to form holes and edges with thickened edges from the melting processes, to join sections of metal, to add metal by creating beads at desired locations, to join sections with differing hardness and / or thickness, to create compound cymbals and compound flat sheet instruments by joint welding cymbals or sheet instruments together. The invention also includes cymbals and bells and various combinations and shapes thereof and the unique overtones attained thereby.

The invention discloses a fixed strength training apparatus, which comprises two groups of training mechanisms which are cooperated in use, wherein each group of training mechanism comprises an upperfixed plate and a lower fixed plate which are fixed to a wall surface, and a base plate which is vertically arranged, wherein the upper sides of the base plates are connected to the upper fixed platesin a hinged mode; the lower sides of the base plates are detachably connected to the lower fixed plates; a sliding rail is arranged on each base plate; sliding blocks, which can slide, are arranged on the sliding rails; operating handles are arranged on the sliding blocks; and magnetic adsorption mechanisms are additionally arranged on the sliding blocks. The training apparatus is applicable to use in a mode of being fixed indoors; and the training apparatus is small in occupied space, and weight can undergo linear adjusting in accordance with actual demands.

The invention discloses a multifunctional training sports device and a training method thereof. The multifunctional training sports device includes a fixed shell, reservoir, piston, rack, stepping motor, rotating shaft, avoidance hole, first travel switch, second travel switch, first switch, second switch, trigger board, horizontal Bar, flexible water pipe, water storage backpack, and a treadmill.The multifunctional training sports device and the training method thereof have the advantages that the structure is ingenious, the function is powerful, the operation is simple, first through the adjustment type load-bearing design, can enhance the personnel's training effect, secondly through the anaerobic training and the aerobic training device's combination, can facilitate the personnel to carry on many kinds of training, strengthened the training effect, is advantageous to the sports profession promotion application.

The invention discloses an electromagnetic dumbbell. The electromagnetic dumbbell comprises a dumbbell body and an electromagnet, and the dumbbell body is located on the upper portion of the electromagnet; the dumbbell body is composed of a holding rod and two iron plates installed at the two ends of the holding rod respectively; the holding rod is provided with a height induction device, and each iron plate is provided with a weight regulator; the electromagnet is installed on the ground and provided with a processing chip. In this way, the electromagnetic dumbbell has the advantages that dumbbell pieces do not need to be replaced, the weight of the dumbbell is changed by changing the attraction force of the electromagnet, and then the condition that a user is injured when the dumbbell is replaced can be avoided.

The invention discloses a floatage demonstration device for physics teaching, and belongs to the technical field of physical experiment instruments. The floatage demonstration device comprises a tank,a support frame, a cubic measuring drum, a floating drum, a connecting rod and four inverted-T-shaped indicating blocks. A squire opening is formed in each of four side walls of the measuring drum. The top of the measuring drum is connected with the top of the support frame fixedly. The floating drum is located in the tank. The top of the connecting rod is inserted into the measuring drum. The four indicating blocks correspond to the openings one by one. One indicating block corresponds to one side wall of the connecting rod. The inverted-T-shaped portion of each indicating block penetrates the corresponding opening to be fixedly connected with the corresponding side wall of the connecting rod. The other portion of each indicating block is located in the corresponding opening or outside the measuring drum. The floatage demonstration device has the advantages that the weight of the floating drum can be changed through an electromagnetic coil; a first magnet and a second magnet are arranged at the bottom of the tank, the second magnet drives the first magnet to move, and fluids in the tank can be stirred, so that density of the fluids is changed; the floatage demonstration device issimple to operate and has high efficiency.

The invention discloses a feminine vaginal contraction training apparatus. The feminine vaginal contraction training apparatus is characterized by comprising a transmitting device and a receiving device which are arranged in two shells respectively, the shell of the internal transmitting device comprises two balls which are connected together, a steel ball is arranged in one ball, a vibration motor, a battery and a PCB (printed circuit board) are arranged in the other ball, and the vibration motor and the PCB are electrically connected with the battery. The feminine vaginal contraction training apparatus has the advantages of simplicity, easiness in use, interestingness and convenience in use.

The invention discloses a loose tobacco leaf baling box, and relates to the technical field of flue-cured tobacco baling. Loose leaves can be baled in multiple weight levels, and the problem of low baling efficiency of a conventional baling mode is solved. According to the loose tobacco leaf baling box, the distance between two side plates can be regulated, and the volume of a baling space enclosed by a bottom plate and the side plates can be changed to change the weight level of the loadable loose leaves; a first extending plate and second extending plates are arranged in inner cavities in the upper part of the bottom plate and the side plates respectively, and are uplifted to increase the volume of the baling space and further change the weight level of the loadable loose leaves; scales are arranged on the second extending plates, so that the height information of the loadable loose leaves can be directly read to further determine or regulate the weight level of the loadable loose leaves. The loose tobacco leaf baling box is simple in structure, convenient to use and favorable for popularization, the volume of the baling space can be changed, and high working efficiency is achieved when the loose tobacco leaf baling box is used.

The invention discloses an automatic fish school chasing robot fish for the fish school breeding industry and a control method thereof. A robot fish head is internally provided with drainage needle pipes, drainage steering engines, crank blocks and a camera which are connected; the drainage steering engines are connected with pistons of the drainage needle pipes through the crank blocks; and the drainage needle pipes are symmetrically arranged inside the robot fish head. The robot fish head is connected with a robot fish body through a connection bracket. The robot fish body is internally provided with a plurality of driving steering engines which are connected through concatenation fixing pieces; the driving steering engine mostly close to a robot fish tail is connected with the robot fish tail through the corresponding concatenation fixing piece; skin frames for supporting skins are fixed to the concatenation fixing pieces; and the driving steering engine close to the robot fish tail is driven by the driving steering engine close to the robot fish head to rotate in the horizontal direction. The camera, the drainage steering engines and the driving steering engines are connected with a controller. According to the automatic fish school chasing robot fish for the fish school breeding industry, the swimming velocity is increased through mechanical structure improvement and reasonable movement planning, and the output efficiency is improved.

The invention discloses a train loading simulation device for a bridge model test, the train loading simulation device comprises a bridge model system and a train loading system; the bridge model system comprises a pier and a model beam mounted on the pier, and a track plates and steel rails are arranged on the surface of the model beam; the train loading system comprises a train model and a guiderail; the guide rail is a screw with external threads, is located above the model beam and is arranged along the longitudinal direction of the model beam; and a driving structure is arranged in the train model, the driving structure comprises a driving rotor core and a motor, the driving rotor core is sleeved on the outer side of the guide rail, and internal threads matching the external threadsof the guide rail are arranged on an inner surface of the driving rotor core. The train loading simulation device disclosed by the invention has the advantages of realizing indoor model simulation ofbridge crossing of a train, accurately controlling the starting and braking of the operation of the train, and realizing movement of a variety of vehicle speeds so as to study the influence of the running speed of the train on the bridge vibration; and in addition, the train weight can be changed to study the influence of the axle load of the train on the bridge vibration.

The invention discloses an antiskid vibration damper with wide application range. The antiskid vibration damper comprises a vibration damper set, a wire clamping plate and a first locking threaded rod, wherein a wire slot is formed in the interior of the wire clamping plate, and a rubber protection layer is arranged on the inner wall of the wire slot; an auxiliary groove is formed in the upper end of the wire slot; a threaded hole is formed in the wire clamping plate; the front end of the first locking threaded rod passes through the threaded hole in an inserting manner and is positioned inside the wire clamping plate; the vibration damper set is provided with an upper vibration damper set and a lower vibration damper set respectively, and connecting blocks are connected through a second locking threaded rod. When two ends of the vibration damper are firmly arranged on a circuit respectively, the circuit positioned inside the vibration damper can be twisted through the first locking threaded rod, so that the friction force is strengthened, the connection of the vibration damper and the circuit is strengthened, the vibration damper is unlikely to slide; and moreover, the vibration damper is provided with the upper vibration damper set and the lower vibration damper set, so that the weight of the vibration damper can be changed according to different circuit requirements, and the antiskid vibration damper has wider market prospect.

The invention relates to the technical field of sowing machines, and in particular relates to a sowing machine travelling wheel with an adjustable size. The sowing machine travelling wheel comprises a wheel frame and wheel pieces, wherein the wheel frame and the wheel pieces are of a splitting type structure; the plurality of wheel pieces are inserted into the wheel frame in a circumference manner to form the complete travelling wheel. The sowing machine travelling wheel is simple in structure, and the diameter size of the travelling wheel can be adjusted through adjusting the wheel pieces with different sizes; the sowing machine travelling wheel is convenient and firm to mount and is not easy to loosen; the wheel pieces with different thicknesses can be mounted, so that the weight of the travelling wheel and a bearing capability of the travelling wheel are changed, and furthermore, the sowing machine travelling wheel is adaptive to different sowing environments.

The invention relates to a fitness apparatus, and especially discloses a hand-held power generating dumbbell. The dumbbell comprises two dumbbell heads and a handle, and the dumbbell heads are detachably connected to the handle. The handle is a hand-held power generating unit, and comprises a driving device, a speed increasing device, a generator and a housing of the generator. The input end of the driving device is exposed outside the housing. The input end of the speed increasing device is connected to the output end of the driving device, and the output end of the speed increasing device is connected to the input end of the generator. The output end of the generator is connected to a USB interface. The driving device is used for converting rectilinear motion into rotation motion. The hand-held power generating dumbbell serving as the fitness apparatus can convert the gripping power of hands into electric energy, can charge digital equipment when being used for body-building, is convenient to carry, and is economical and practical.