185 results about "Thermal stimulation" patented technology

A method of cooling a mammal with an implantable blood pump. The method includes measuring a temperature of an internal controller, the internal controller being in communication with the implantable blood pump. an alert is generated if the temperature of the internal controller exceeds a predetermined temperature threshold.

The invention provides a preparation method of medicinal liquor and application of the medicinal liquor in preparation of analgesic and anti-inflammatory products, and relates to the technical field of medicines. The preparation method comprises the following steps: (1) crushing; (2) extracting; (3) standing and separating; and (4) freezing and filtering to obtain the medicinal liquor. In the preparation process, traditional Chinese medicine components are extracted through the steps of batch crushing, mixed extraction, standing, freezing and separation of supernate and suspension in different separation modes to obtain the medicinal liquor, and the medicinal liquor can better inhibit pain caused by thermal stimulation and chemical substances and has a better analgesic effect; the traditional Chinese medicine composition can inhibit capillary permeability increase caused by acetic acid, has a better effect of inhibiting inflammation exudation, and has remarkable analgesic and anti-inflammatory effects.

A new energy material safety evaluation method and system based on multi-agent reinforcement learning, and an electronic device, relating to the field of data mining and analysis for the safety of new energy materials against heavy object impact and thermal stimulation. The new energy material safety evaluation method based on multi-agent reinforcement learning comprises: using high-throughput computing to acquire data sets; providing a safety evaluation threshold on the basis of a hotspot formation and evolution process; labeling each sample in an initial data set with a safety label on the basis of the threshold to obtain a training data set; establishing a mapping relationship between the training data set and multi-agents; using an agent action selection policy to select an action having the maximum reward value to obtain a current cluster distribution result of the multi-agents; calculating a sample silhouette coefficient, a cluster silhouette coefficient, and an overall silhouette coefficient; using a reward function to calculate reward values of the multi-agents, and obtaining cluster centroids when the number of iterations satisfies a preset threshold; and determining a new energy material safety evaluation result on the basis of the cluster centroids.

The invention discloses a reprocessable solid-solid phase change material based on dynamic borate bonds and a preparation method of the reprocessable solid-solid phase change material. Based on the mechanism that boric acid ester is subjected to ester exchange during thermal stimulation, a dynamic cross-linking agent containing boric acid ester is adopted for cross-linking a polyurethane prepolymer, polyethylene glycol is cross-linked through chemical bonds, the tensile strength and the elongation at break of the phase change material are improved, and the problem that the phase change material is prone to leakage in the phase change process is solved; besides, borate bonds belong to associated dynamic covalent bonds and can keep the crosslinking density of the material unchanged when ester exchange occurs under thermal stimulation, so that the thermal stability of the material is relatively good; the solid-solid phase change material disclosed by the invention is excellent in mechanical property, has a relatively high enthalpy value, can be reprocessed, and has an application prospect in the fields of thermal management, energy storage, infrared stealth and the like.

Methods, systems and devices for reducing anxiety, including increasing relaxation and / or calm. In some variations these methods may include reducing anxiety, increase relaxation and / or calm by non-invasive temperature regulation of the frontal cortex prior to and / or during sleep. The subject may have an anxiety disorder, or may not have a diagnosed anxiety disorder.

The present invention relates to an RF application apparatus comprising a composite electrode that induces surface thermal stimulation and deep thermal stimulation. The RF application apparatus according to an embodiment of the present invention comprises: a first treatment electrode that applies RF energy through skin tissue of a first layer which is a skin surface; a second treatment electrode that includes a plurality of needle electrodes and applies RF energy through skin tissue of a second layer located deeper than the first layer; and at least one return electrode configured to allow returning of RF energy applied from the first treatment electrode or the second treatment electrode, wherein the second treatment electrode is configured to be drawn out and drawn in through the first treatment electrode, and the first treatment electrode and the second treatment electrode are configured to operate simultaneously or selectively.

The invention relates to the technical field of natural gas hydrate exploitation, in particular to a natural gas hydrate combined exploitation system and method utilizing geothermal energy. An offshore operation platform is used for receiving natural gas hydrate produced by a depressurization exploitation module; the depressurization mining module obtains natural gas hydrates through a depressurization method; the geothermal energy circulation heating module is located in a vertical shaft of the space below the offshore operation platform and provided with multiple layers of heat collection pipes and heat dissipation pipes, the heat dissipation pipes are arranged in the natural gas hydrate reservoir in the depth direction of the heat reservoir, and the heat collection pipes and the heat dissipation pipes are filled with working liquid. The working liquid absorbs geothermal energy in the heat reservoir through the heat collecting pipe, and the geothermal energy is released into the natural gas hydrate reservoir through the heat dissipating pipe. Geothermal energy is used for heating the natural gas hydrate reservoir, depressurization method-thermal excitation method combined mining is formed, and the mining efficiency is improved.

The invention discloses a light-driven / temperature-driven double-trigger shape memory antibacterial and anti-tumor bone scaffold and a fused deposition modeling (FDM) preparation method thereof, and is characterized in that polylactic acid (PLA) is used as a matrix, and polyethylene glycol (PEG) and nano magnesium hydroxide (Mg (OH) 2) / copper oxide (CuO) are uniformly dispersed through an organic solvent blending method; a composite wire is prepared through the processes of drying and film forming, crushing and granulation and screw extrusion, and finally, the integrated molding of the three-dimensional porous scaffold is realized through an FDM (fused deposition modeling) process. According to the stent, temperature and near-infrared light double-triggered shape memory is achieved through cooperation of glass transition regulation and control of PLA-PEG and the photothermal effect of the nano metal oxide particles. Nano Mg (OH) 2 / CuO endows the scaffold with multi-mode antibacterial and anti-tumor functions: 1) Mg < 2 + > / Cu < 2 + > releases and destroys microbial membrane potential; according to the stent, the limitation of shape fixation of a traditional implant is broken through, shape self-adaption can be triggered through light / heat stimulation, irregular bone defects can be accurately attached, the risk of a secondary operation is avoided, and the stent has remarkable advantages in minimally invasive orthopedic repair.

The embodiment of the invention provides a melanoma postoperative wound intelligent dressing, and belongs to the technical field of intelligent medical treatment. The intelligent dressing for the wound after the melanoma operation comprises a multiple monitoring module, an intelligent processing module and an on-demand drug delivery module which are arranged on a dressing base body, the multiple monitoring module is used for acquiring biological signals of a wound surface microenvironment in real time; and the intelligent processing unit analyzes the biological signal to generate a wound state judgment result, and controls the on-demand drug delivery module to trigger electrical stimulation or thermal stimulation based on the wound state judgment result so as to realize on-demand drug release. According to the scheme, the deep learning intelligent early warning model fusing the generative adversarial network and the Transform structure is constructed, high-precision analysis and dynamic risk judgment of melanoma postoperative wound multi-dimensional time sequence data are achieved, and the accuracy and stability of wound state recognition are effectively improved.

The invention discloses a flexible actuator integrating driving, sensing and rigidity changing and a manufacturing and driving method of the flexible actuator. The actuator adopts a three-layer composite structure: a driving layer is composed of a liquid crystal elastomer and can generate reversible deformation in response to light or thermal stimulation; the variable stiffness layer is composed of a polydopamine modified stiffness adjustable polymer, and active switching of stiffness and deformation locking can be achieved through thermal regulation and control; the sensing layer is composed of a multi-walled carbon nanotube grid, can be integrally formed with the driving layer, and monitors self deformation in real time by transmitting resistance signals; the actuator is obtained by compounding the three layers; the driving method comprises repeated heating and cooling so that the actuator can be bent, fixed and restored. Through cooperation of the three functional layers, unification of optical / thermal multi-mode driving, real-time self-sensing and active deformation locking is achieved, an actuator can lock any middle deformation state by regulating and controlling the cooling rate, and the optical / thermal multi-mode driving device has the advantages of being diverse in driving mode, high in deformation controllability and low in energy consumption.

The invention discloses thermal stimulation response hydrogel and a preparation method thereof, and belongs to the technical field of high polymer materials. The preparation method comprises the following steps: dissolving acryloyl valine, acrylamide, methylene bisacrylamide and a photoinitiator in an organic solvent, and defoaming to obtain a precursor solution; and S2, putting the precursor solution into a mold, carrying out ultraviolet light-induced curing, soaking the obtained hydrogel in an acid solution, replacing the organic solvent, and then carrying out heat treatment to obtain the thermal stimulation response hydrogel. Compared with other existing thermal response type hydrogel, the thermal response type hydrogel has the advantages that the fracture stress, the modulus, the tensile work and the like are remarkably improved in the order of magnitude level, and excellent comprehensive mechanical properties are shown. The thermally-induced hardening hydrogel developed by the invention has a wide application prospect in the field of engineering devices requiring higher modulus and requiring significant change of mechanical properties before and after heating.

The invention provides a 4D printing path planning method based on fiber orientation and layering sequence, and relates to the technical field of intelligent additive manufacturing, and the method comprises the following steps: designing a two-dimensional plane precursor model according to a target three-dimensional structure, and dividing a deformation area and a non-deformation area; differentiated printing paths and material layouts are planned for different areas, material anisotropy is programmed by setting the movement angle of a printing spray head, and the stacking sequence and the thickness proportion of material layers are controlled; a multi-material composite printing process is adopted, PLA is deposited in the deformation area, and PETG is deposited in the non-deformation area; and finally, applying thermal stimulation at 70-75 DEG C to the component, so that the component is autonomously deformed into a three-dimensional functional component from a two-dimensional plane. Structural integrated manufacturing is achieved, deformation is accurate and controllable, interface combination is reliable, and the light weight and assembly efficiency is remarkably improved.

The invention discloses a noninvasive chronic abacterial prostatitis rat model making device which comprises a multifunctional operation base, a lifting stand column, a rat posture adjusting mechanism, a rat fixing plate, a lifting support, a pitching angle adjusting mechanism and a rat prostate multi-mode stimulator. The lifting support is fixed on the base, the pitching angle adjusting mechanism is fixed on the lifting support, the rat prostate multi-mode stimulator is fixed on the pitching angle adjusting mechanism, the rat posture adjusting mechanism is fixed on the multifunctional operation base, and the rat fixing plate is fixed on the rat posture adjusting mechanism. According to the device, the chronic abacterial prostatitis rat model is constructed by combining prostate local thermal stimulation with prostate local high-frequency vibration stimulation, the prostate tissue of the rat is noninvasive in the whole modeling process, and the problem of modeling failure or low success rate caused by introduction of bacteria in the injection puncture process is avoided.

A method of cooling a mammal with an implantable blood pump. The method includes measuring a temperature of an internal controller, the internal controller being in communication with the implantable blood pump. An alert is generated if the temperature of the internal controller exceeds a predetermined temperature threshold. The internal controller and implantable blood pump may be implanted at different locations in the patient.

The invention discloses high-toughness self-repairing polyurethane based on a ureido / disulfide bond dual dynamic network and a preparation method of the high-toughness self-repairing polyurethane, and belongs to the technical field of self-repairing high polymer materials. The structural formula of the thermal stimulation repairing polyurethane is shown in the specification. The polyurethane is formed by mixing and polycondensing polyether amine, diaminodiphenyl disulfide and dicyclohexylmethane diisocyanate. According to the invention, polyether amine is used as a raw material, green synthesis without a catalyst is realized, ureido generated by the reaction forms a hydrogen bond network with extremely strong dynamic property and cooperates with a disulfide bond, a repair process is completed at 50 DEG C, the toughness can reach 40.55 MJ / m < 3 >, the fast recovery capability is realized, the material can be stretched to be 20 times of the original length, and the service life of the material is prolonged. Good network dynamic property is achieved at the room temperature, and high self-repairing efficiency is achieved at the room temperature.

The invention discloses a large-driving-force liquid crystal elastomer composite artificial muscle belt and a manufacturing method and application thereof. The preparation method comprises the following steps: reacting a mixed reaction system containing a liquid crystal monomer, a chain extender, a cross-linking agent, a photoinitiator, a catalyst and a nano material to prepare a composite oligomer; and placing the composite oligomer in a mold, removing the solvent, and then carrying out stretching and cross-linking treatment to obtain the liquid crystal elastomer composite artificial muscle band with large driving force. The composite artificial muscle belt can achieve linear contraction under thermal stimulation, and large thrust can be generated in the recovery process; meanwhile, the composite artificial muscle belt can achieve large driving force output without being assembled by an artificial muscle fiber bundle, and the technical problem caused by the fact that a plurality of artificial muscle fiber bundles are assembled to achieve contraction force amplification is solved.

The invention relates to a physical therapy equipment parameter optimization method based on a terahertz technology, which comprises the following steps of: constructing a frequency stepping and pulse width combination mechanism of terahertz irradiation parameters to adapt to microscopic heterogeneity of water molecule distribution in human tissues, and exciting a tissue area which is originally in a low response state by expanding an absorption window range; setting an irradiation duration and duty ratio strategy, enabling a part of the tissue structure to generate reversible conformational deformation under terahertz micro-thermal stimulation, and regulating and controlling a scattering path and an interference state of local terahertz waves by utilizing the conformational deformation; the method has the beneficial effects that the microcosmic non-uniform tissue area is activated by utilizing the high-selectivity absorption characteristic of terahertz waves on water molecules and biological polar groups and through a combined mechanism of frequency stepping and pulse width, and the coupling efficiency and biological effect strength of energy in target tissue are remarkably improved.

An apparatus may obtain a first stimulation signal and identify a first parameter of the first stimulation signal. An apparatus may identify a first pattern of the first parameter in the first stimulation signal. An apparatus may generate a second pattern based on the first pattern and generate a thermal stimulation signal based on the second pattern. An apparatus may cause, using a thermal element, an output of the thermal stimulation signal concurrently with the first stimulation signal.

The invention relates to the technical field of health-preserving physical therapy, and discloses a vertical moxa-therapy leading-in device which comprises a moxa-moxibustion device, an operation part is installed on the moxa-moxibustion device, a driving part is installed on the operation part, a metal sleeve is installed on the driving part, a moxibustion head part is installed on the metal sleeve, a processing frame is installed on the metal sleeve, and a placement shaft body is arranged in the processing frame. According to the vertical moxa therapy leading-in device, the non-woven fabric which is heated to a proper temperature and is in a wet state is used for covering a moxibustion applying part, on one hand, the acting force of timely sealing an acupuncture point is achieved, and the moxibustion applying part is covered by the non-woven fabric which is heated to a proper temperature and is in a wet state; and on the other hand, the heated non-woven fabric can accelerate the blood flow at the moxibustion applying part and help to disperse residual cold-dampness and pathogenic factors in the body, and meanwhile, the spherical massage head is used for massaging the moxibustion applying part, so that local muscle tension caused by thermal stimulation in the moxibustion process can be relieved, and spasm or stiffness can be prevented.

The invention provides a transfer printing seal for a photoresist nano structure, a manufacturing method and a curved surface photoetching method, and the transfer printing seal comprises the following components in percentage by mass: 40%-70% of N, N-dimethylacrylamide, 30%-60% of 4-hydroxybutyl acrylate, 0.5%-2% of polyethylene glycol diacrylate and 0.5%-2% of a photoinitiator. In the curved surface photoetching process, the transfer printing seal is heated to 90 DEG C and then is conformally attached to the upper surface of the photoresist nano-structure, and the high modulus of the transfer printing seal protects the photoresist nano-structure from being damaged and deformed; the surface of the curved surface is heated, the transfer printing seal with the photoresist nanostructure is heated to 90 DEG C and then is attached to the surface of the curved surface in a conformal mode, the transfer printing seal is slowly peeled off at a constant speed, the reversible high adhesion switching ratio and the high modulus switching ratio can be achieved under thermal stimulation, high-yield picking and releasing of the microstructure are achieved, the transferred microstructure can be protected in the transfer printing picking stage, and the yield of the microstructure is improved. And in the transfer printing release stage, the photoresist nano-structure can be fully attached and conformal with the curved surface, so that high-yield preparation of the photoresist nano-structure on the curved surface is realized.

The invention discloses a preparation method of traceable polyester staple fibers, which comprises the following steps: mixing a tracing raw material and a renewable synthetic fiber raw material, and carrying out melt spinning to obtain the traceable regenerated polyester staple fibers, the tracing raw material comprising at least two of cobalt Prussian blue analogues, germanate fluorescent materials and metal oxides. The invention also provides a traceable polyester staple fiber product prepared by the preparation method. According to the method, two color changes under thermal stimulation and solvent stimulation of primary-color polyester fibers can be achieved, meanwhile, the tracing germanate fluorescent particles and the metal oxide tracing particles are added to make up for the defect that color changes are difficult to recognize after the fibers are dyed, and meanwhile the tracing means is complicated, so that the fibers are difficult to counterfeit.

The invention discloses a wheel diameter adjustable trolley with sensing-deformation composite spokes and a control method. Each wheel of the trolley is composed of a wheel axle and a plurality of wheel spokes distributed in a circumferential array mode, and the wheel spokes are of a three-layer composite structure: a driving layer composed of a liquid crystal elastomer is responsible for generating deformation under thermal stimulation; the rigidity-variable layer formed by a rigidity-adjustable polymer realizes hardening locking through ultraviolet irradiation, and realizes reversible adjustment of rigidity through heating; the sensing layer is formed by a multi-walled carbon nanotube grid, can be integrally formed with the driving layer and is used for monitoring the wheel diameter change in real time; according to the control method, the trolley can be switched between the high obstacle crossing ability of the large wheel form and the high load stability of the small wheel form. According to the method, the motion performance under the complex terrain is remarkably improved, and the method has wide application prospects in the field of adaptive mobile robots.

The disclosure belongs to the field of MicroLED, and discloses a projection proximity mass transfer device. The device includes a support layer, a dynamic release layer and a adhesive foam layer. The support layer is a base layer; the dynamic release layer is arranged on the support layer. Under laser radiation, the dynamic release layer is ablated to generate ablation gas, thereby causing the dynamic release layer to generate blister; the adhesive foam layer is arranged on the dynamic release layer, and the foam layer is in contact with the MicroLED to be transferred. Under the action of thermal stimulation or laser, the foamed particles inside the adhesive foam layer expand, reducing the adhesion of the foam layer. Thereby, blisters with microstructures are formed at the interface between the stamp and the chip, thus realizing peeling of the MicroLED to be transferred.

The utility model provides a massage brassiere for preventing hyperplasia of mammary glands, which relates to the technical field of massage brassieres, and comprises a shell and a massage mechanism, the massage mechanism is arranged on the inner side of the shell, and through the arrangement of the massage mechanism, when the massage brassiere is used, a continuous and uniform warming effect is realized through a built-in heating wire and a coated uniform heating layer; thermal stimulation is beneficial to promoting breast blood circulation and relieving discomfort of a breast area, lymph flow can be promoted through the rotating seat and the massage head, waste in the body can be discharged, it can be ensured that a firm and comfortable fixed state is kept in the massage process through the fixing belt and the hook-and-loop fastener, shaking can be prevented, and the massage effect is good. The disposable bra can provide clean and sanitary massage and prevent skin diseases caused by use of multiple people, meanwhile, the medicine containing layer bears medicine for preventing hyperplasia of mammary glands, the medicine effect is released by being attached to the mammary gland area, mammary gland health is promoted in an all-around mode, and a user can enjoy the double effects of prevention and nursing in the massage process.

The invention discloses a reversible thermochromic polydiacetylene material and application thereof in medium-high temperature overheat monitoring, the material is an amide functionalized conjugated polymer containing polydiacetylene on both sides, and the preparation method comprises the following steps: a) reacting 10, 12-pentacosadiynoic acid with an amine compound to synthesize an amidated conjugated diacetylene monomer; and b) carrying out in-situ topological chemical polymerization on the diacetylene monomer under the irradiation of ultraviolet light to obtain the polydiacetylene material. The polydiacetylene material shows a remarkable thermochromic characteristic under thermal stimulation, the color of the polydiacetylene material changes in multiple steps at different temperature critical points, after the polydiacetylene material is cooled to the room temperature, the color of a polymer is rapidly restored, and the color change of the material is stable through multiple heating and cooling cycle experiments. The material can repeatedly monitor the real-time temperature of various electric appliances or equipment, and overheating after long-time use is avoided.

The invention discloses a pulsed light hair removal system based on spectrum conversion and a control method thereof. The system comprises a pump light source module, a spectrum conversion module, an image acquisition module and a processor. The system provided by the invention has a pixel-level accurate control capability, the accuracy is greatly improved compared with the traditional IPL, and pixel-level energy self-adaption is realized, so that personalized treatment is supported. The system also supports sliding continuous irradiation, can greatly shorten the treatment time, has the advantages of high energy efficiency ratio, small invalid irradiation area, low pain feeling and the like, and can effectively reduce unnecessary thermal stimulation.

To give a temperature stimulus as intended by a service provider to a user without depending on the setting of the user himself / herself or the answer of the user to a question.SOLUTION: The controller 5 measures the temperature of the skin S using the temperature sensor 4 while controlling the temperature presentation unit 2 to provide a temperature stimulus to the skin S, and acquires, based on the measurement result, a first variation indicating the variation in the temperature of the skin S from the start of the temperature stimulus to a predetermined time and a second variation indicating the variation in the temperature of the skin S from the end of the temperature stimulus to a predetermined time. The acquired first and second amounts of change are input to a temperature stimulus adjustment model representing the relationship between the first and second amounts of change and the reaction time, which is the time required for the user to notice a change in temperature caused by a temperature stimulus, to estimate the reaction time of the user, and the intensity of the temperature stimulus provided by the temperature presentation unit 2 is controlled according to the estimated reaction time of the user.SELECTED DRAWING: Figure 1

Provided is a method for inducing the differentiation of pluripotent stem cells which are obtained by suspension culture with high quality and / or high efficiency.　The present invention pertains to a method for producing differentiated cells, the method comprising: a step in which thermal stimulation is applied to pluripotent stem cells after suspension culture of the pluripotent stem cells; a step in which the pluripotent stem cells are subsequently seeded in a culture medium that is different from a culture medium used in the suspension culture; and a step in which agregate mass formation and differentiation induction of the seeded pluripotent stem cells are performed.

The invention discloses preparation of PVA-CP hydrogel with thermal stimulation patterning capability and application of the PVA-CP hydrogel in information encryption. The crystallinity of PVA is adjusted through the ion effect of the NaCl solution, so that the orientation degree of the hydrogel is changed, and PVA-CP hydrogel with different interference colors can be obtained. And local PVA crystal regions can be quickly dissociated through local thermal stimulation, so that different interference patterns are created. In addition, two novel encryption strategies based on the interference color angle dependence characteristic are provided, PVA-CP hydrogel modules with different orientation directions are packaged, and the rotation angle and the interference color serve as double decryption keys, so that the information security is remarkably enhanced.

The application discloses a radiation refrigeration coating with a recyclable function and a preparation method thereof, and belongs to the technical field of refrigeration coatings.The coating is composed of base oil 500SN, hollow silica microspheres (SiO2@APTES) modified by a silane coupling agent, a liquid metal-based crosslinking agent (GLM) composed of a self-prepared urea-based monomer (UM), cetyl methacrylate (CMA) modified liquid gallium (Ga), talcum powder, calcium carbonate, ethylene glycol butyl ether, polyacrylate, methyl ethyl ketone oxime and methyl methacrylate.The GLM crosslinking agent in the coating has a reversible thermal stimulation response, can reversibly perform phase conversion under thermal stimulation, and simultaneously endows the coating with recyclable performance.Meanwhile, the introduction of the SiO2@APTES realizes high reflection of sunlight and high emission of a medium and far infrared band, and guarantees excellent radiation refrigeration performance of the coating.