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61results about How to "Improve mitigation effect" patented technology

Panda type polarization maintaining optical fiber

The invention relates to a panda type polarization maintaining optical fiber for use in the field of optical fiber guidance and sensing, which comprises a core layer and a pure quartz cladding, wherein stress zones are symmetrically arranged at the two sides of the core layer in the pure quartz cladding. The panda type polarization maintaining optical fiber is characterized in that a depressed inner cladding is arranged outside the core layer, and the space between the boundaries of the stress zones and the boundary of the core layer is reduced, so that the space d between the boundaries of the stress zones and the boundary of the core layer keeps 3-7mu m. The birefringent property of the panda type polarization maintaining optical fiber can be improved by the invention to meet the performance requirements of a high-precision gyro, and the introduction of the depressed inner cladding can effectively reduce the burst probability of the prefabricated core layer in the process of punching in the stress zones under the condition of not increasing the difficulty of process preparation; the depressed inner cladding adopts viscosity doping and matching design, and further reduces the burst probability of the prefabricated core layer caused by the external mechanical stress in the process of punching in the stress zones; and one side of the stress zones and the depressed inner cladding have an overlapped region so as to prevent the mechanical stress from acting on an intrinsic boundary stress concentration point.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD

Eye patch for relieving visual fatigue

The invention provides an eye patch for relieving visual fatigue and belongs to the technical field of eye patches. The eye patch comprises a cover and Velcro fixing bands, multiple sandwiched layers I are arranged inside a cavity of the cover, heating pieces and medicine therapy bags are sequentially arranged in the direction of eyes of a human body inside the sandwiched layers I, a movable cover is arranged at the position, corresponding to the cavity, of the cover, a silica membrane is arranged on the face, making contact with the eyes, of the cover, protruding bubbles are arranged at the positions, corresponding to acupuncture points around the eyes, of the silica membrane, massage beads are arranged inside all the protruding bubbles and connected with a vibration motor which is connected with a power source, a temperature sensor and a microcontroller are arranged inside the cover, and the temperature sensor is sequentially connected with the microcontroller and the power source through wires. The compliableness and comfort level of the eye patch are improved, the effect of relieving visual fatigue is enhanced from the perspective of a short term and a long term, the good effects of relieving and treating visual fatigue are achieved through the combination of thermal therapy, medicine therapy and massage, safety is higher, structural design is reasonable, and using is convenient.
Owner:刘子昂

Respiration indication device for spine reduction system

A respiration indication device for a spine reduction system is provided. The spine reduction system can treat muscle slight contracture and muscle muscular tension due to unhealthy living habits and diseases of modern peoples. Muscular tension tends to occur in muscle groups attached on or associated with two sides of a spine, and spine fatigue, overload and even deformation occur as time passes. In the field of spine recovery, a mechanical force and an electric field are applied to relieve muscular tension when spine traction and fixation is performed, which is an effective treatment means. The invention provides a plurality of treat means, electrotherapy and magnet therapy are combined effectively, discharging is induced by human body muscular tension relevant ganglia, and a plurality of muscle heath indexes can be effectively improved; and self adaptive adjustment is performed in real time with myoelectricity detection so as to acquire a better treatment effect. In the magnet therapy process, to achieve a good time, the respiration indication device can prompt a patient to perform abdominal respiration to match the magnet therapy under the management of a control device, and excess interference of evoked potentials and normal human body cardiac electricity can be avoided.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Novel wheel tread structure of high-speed motor train unit

The invention relates to a novel wheel tread structure for a high-speed motor train unit, and belongs to the field of railway vehicle wheel tread structures. The wheel tread structure can be completely matched with and completely adapt to the profile of CN60 novel railways, and a small curvature radius of a first arc segment end surface of a throat root circle high taper region is adopted to avoid the destabilization of train wheels produced by that the equivalent taper of a tread is too high, and avoid the rocking of motor trains caused by that the equivalent taper of the tread is too low. A normal operating region cooperates with a low taper region at the outer side of an end part of the tread to have the effect of enlarging the contacting area of the tread and the railways, and the wheels can be allowed to bear a higher axle weight load under the same contact stress. According to the novel wheel tread structure disclosed by the invention, the purposes that the tread wear is retarded and the wheel rotating period is prolonged are achieved through optimizing the optimal position of a rolling circle, and the adaptability of the tread structure to the change of a steel rail profile is greatly improved through the given parameter settings which are calculated and preferred, and the purpose of obtaining the ideal effects of concurrently considering and balancing two aspects of restraining snaking motion and prolonging the wheel rotating period is achieved.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD +2

Sulphating catathelasma ventricosum polysaccharide preparing method

The invention discloses a sulphating catathelasma ventricosum polysaccharide preparing method. The method includes the steps that catathelasma ventricosum is frozen, dried and ground into powder, extraction of alcohol sedimentation is conducted through ethanol water, deproteinization is conducted, small molecular weight impurity removal is conducted, and the catathelasma ventricosum polysaccharide is obtained; the method for preparing the sulphating catathelasma ventricosum polysaccharide includes the steps that 70 ml of dimethyl sulfoxide is weighed to be placed into a dry three-necked flask provided with a condensing unit, catathelasma ventricosum polysaccharide samples are added slowly to the flask while magnetic stirring is conducted, the samples are prevented from condensing into blocks, stirring is conducted for 1 hour, and a bottle plug is arranged on the flask in a covered mode; then sulfur trioxide-pyridine powder is added, the mixture is heated to 85 DEG C in a water bath mode, a condenser pipe conducts backflow, and a reaction is conducted for 3 hours; after the reaction is completed, the flask is placed into a cold bath to be cooled to the room temperature, then reaction liquid is neutralized through NaOH, absolute ethyl alcohol is added for sediment, the mixture stand still for a night, the sediment is collected in a centrifugal mode and dissolved in water for dialysis, the dialysis liquid is frozen and dried, and the sulphating catathelasma ventricosum polysaccharide is obtained.
Owner:SICHUAN AGRI UNIV

Eye nursing device for preventing shortsightedness

The invention provides an eye nursing device for preventing shortsightedness and belongs to the technical field of eye nursing devices. The eye nursing device comprises a cover body and a fixing part, wherein the cover body comprises a cover frame and eyeglasses, the cover frame and the eyeglasses are detachably connected, a groove is formed in the edge of the cover frame, supporting parts are arranged in the middle and two sides of the cover frame respectively and fix a plurality of ultra-thin strong magnetic pieces, the strong magnetic pieces are fit sequentially, a heating layer, a medical treatment layer, a heat-conducting silica gel membrane layer and a lining layer are sequentially arranged on the inner side of each eyeglass toward the corresponding human eye, the heating layers, the medical treatment layer and the heat-conducting silica gel membrane layer are respectively fixed through the strong magnetic pieces, the lining layers are embedded into the groove of the cover frame through press strips, and a temperature sensor, a microcontroller and a power supply are arranged in the cover frame. The compliance and adaptability are improved through organic matching of the technical characteristics, a shortsightedness preventing effect is improved, and a good shortsightedness treating effect can be achieved by combining thermal therapy with transdermal medicine delivery.
Owner:丁艺涵

Electromyography detection device for spinal column restitution system

A surface electromyography detection device applied to a spinal column restitution system is provided; the spinal column restitution system can treat muscle slight contractures and muscular tension caused by people bad life habits and diseases in modern life; muscular tension mostly occurs on adhering or association muscle groups on two sides of the spinal column, and spinal column fatigue, overloading and deformation can be formed in long term; in the spinal column rehabilitation field, spinal column traction and fixation and machinery and electric field applications for muscular tension alleviation are considered to be effective curing means; the electromyography detection device provides various treatment means, can effectively combine electric and magnetic treatments, and can realize human body muscular tension related ganglion induced discharge, thus effectively improving various muscle health indexes; in addition, electromyography detection can be combined in real time in the same time so as to realize adaptability adjustment, thus obtaining better treatment effect; in addition, the electromyography detection result can serve as important index so as to guide following patient treatments; the electromyography detection device is time and effective, and concise in design.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Brake cylinder

The invention relates to a brake cylinder. The brake cylinder comprises a cylinder body, a cylinder cover, a power assembly, a front assembly and a connecting pipe, wherein the cylinder body comprisesan air inlet cavity, a transition cavity, a respiratory cavity, an air inlet, a breathing connector and an air outlet; the cylinder body is divided into a brake chamber and a balance chamber by the power assembly; the cylinder cover covers the cylinder body; a breathing port is formed in the cylinder cover; the bottom end of the power assembly is stored in the cylinder body, and the top end protrudes from the cylinder body; the front assembly sleeves the top end of the power assembly; and one end of the connecting pipe is connected with the breathing connector, and the other end is connectedwith the breathing port. When the brake cylinder is braked, compressed gas which is input in a brake pipeline through the air inlet is conveyed to the brake chamber by the air inlet cavity through thetransition cavity, and the brake chamber is expanded, so that gas in the balance chamber is compressed and is discharged into the respiratory cavity through the connecting pipe and is discharged intothe atmosphere through the air outlet; when the brake cylinder is released, the brake chamber and the balance chamber are reset, and residual compressed gas in the transition cavity flows into the balance chamber through the respiratory cavity and the connecting pipe.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST +1

A railway train anti-skid exhaust valve with one-way valve

The invention discloses a railway train anti-skid exhaust valve with a one-way valve. The railway train anti-skid exhaust valve comprises a shell, an electromagnetic control assembly and an adjusting assembly. The electromagnetic control assembly communicates with the adjusting assembly through a connecting pipe. The electromagnetic control assembly comprises a package coil and an iron core assembly installed in the package coil. The adjusting assembly comprises a valve body, an inlet screen, a membrane and a reset spring. The shell is provided with an air inlet, the inlet screen is arranged at the position of the air inlet, and the reset spring is located between the membrane and the shell. The valve body is provided with an output port. The one-way valve is arranged between the output port and the air inlet. An inlet of the one-way valve corresponds to the output port, an outlet of the one-way valve corresponds to the air inlet, and the output port communicates with the connecting pipe. According to the railway train anti-skid exhaust valve with the one-way valve, the one-way valve is arranged between the output port and the air inlet, when the anti-skid exhaust valve is in a released state, residual compressed air in a brake cylinder connected with the output port can enter the air inlet from the one-way valve and then is completely emptied, and the releasing performance of the anti-skid exhaust valve is improved.
Owner:WUXI ZONGYANG PNEUMATIC MFG

A kind of myoelectric detection device used in spine rehabilitation system

A surface electromyography detection device applied to a spinal column restitution system is provided; the spinal column restitution system can treat muscle slight contractures and muscular tension caused by people bad life habits and diseases in modern life; muscular tension mostly occurs on adhering or association muscle groups on two sides of the spinal column, and spinal column fatigue, overloading and deformation can be formed in long term; in the spinal column rehabilitation field, spinal column traction and fixation and machinery and electric field applications for muscular tension alleviation are considered to be effective curing means; the electromyography detection device provides various treatment means, can effectively combine electric and magnetic treatments, and can realize human body muscular tension related ganglion induced discharge, thus effectively improving various muscle health indexes; in addition, electromyography detection can be combined in real time in the same time so as to realize adaptability adjustment, thus obtaining better treatment effect; in addition, the electromyography detection result can serve as important index so as to guide following patient treatments; the electromyography detection device is time and effective, and concise in design.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Narrow gauge bogie

The invention belongs to the field of railroad bogies and particularly relates to a narrow gauge bogie. To meet running requirements of narrow gauge railway lines, the narrow gauge bogie includes a front wheel set, a back wheel set, side frames, bolsters, brake devices, bottom center plates and side bearings. Wearing plates are arranged on the splayed surfaces of the bolsters and on vertical columns of the side frames, and the wearing plates located on the vertical columns of the side frames are fastened with the vertical columns of the side frames through folding head bolts. Clamping-in type sliding chute wearing plates are installed in sliding chutes of the side frames. The bolsters and the bottom center plates are of an integrated casting structure, and heat disk wearing plates are installed in the bottom center plates. Spring vibration dampers are composed of wedges, the wearing plates on the vertical columns of the side frames, bevel wearing plates and double damper springs. The wedges adopt combined wedges formed by wedge bodies and main friction plates. The side bearings adopt double-acting constant-contact elastic side bearings, and the brake devices adopt lower pull rods or middle pull rods structures. The narrow gauge bogie is simple in structure, easy to produce and convenient to overhaul, and can be applied to various wagons with various narrow gauges, the axle load smaller than or equal to 25t and the design speed as 100km/h.
Owner:CRRC TAIYUAN CO LTD
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