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42results about How to "Improve immersion effect" patented technology

Children cognitive system based on augment reality technology and cognitive method

The invention discloses a children cognitive system based on augment reality technology and a cognitive method. The children cognitive system based on the augment reality technology comprises an image information input module, an image information matching module, a drawing model module and a voice recognition module. A set of recognition identifications are developed through interfaces of an ARToolkit augment reality development kit, a Microsoft Speech SDK voice recognition engine, a 3D max modeling tool and the like, and a children cognitive platform performs simple interaction with a virtual scene in a computer through voice recognition. Operations like moving, amplifying and contracting a model are achieved through OpenGL image processing technology and 3D modeling technology. The children cognitive system based on augment reality technology and the cognitive method have the advantages of being short in development cycle, good in maintenance, good in portability and easy to modify. In addition, a user can use the cognitive system based on augment reality technology and the cognitive method to write a literary handbook, good learning effect is achieved, and the cognitive platform which is strong in interaction is provided for a child to use an augment reality application system.
Owner:ALIGHT TECH CO LTD

Three-stage brain-controlled upper limb rehabilitation method combining steady-state visual evoked potential and mental imagery

The invention relates to a three-stage brain-controlled upper limb rehabilitation method combining steady-state visual evoked potential and mental imagery (MI). The method comprises the following steps: (1) the first stage of VR video guidance training: a patient is made to be familiar with upper limb rehabilitation movements through VR video guidance; (2) the second stage of VR-SSVEP training: the patient needs to concentrate to observe pictures that represent different upper limb movements and flicker with a specific frequency, EEG signals of the patient are collected in real-time to analyzeintentions of the patient, and visual feedback is provided to the patient through VR animation to make the patient learn to concentrate; and (3) the third stage of VR-MI training: EEG signals of theleft and right upper limbs of the patient during MI are collected during off-line training, and a mental imagery intention recognition model is established. The EEG signals of mental imagery of the patient are analyzed according to the model during online training, movement intentions of the patient are recognized, and movements of a 3D character in an interface are controlled in real time, so that brain central nerve remodeling is facilitated through MI. The method exhibits a good immersion property, enables active rehabilitation to be realized, enables rehabilitation to proceed step by step,and is a new method for upper limb rehabilitation of a cerebral stoke patient.
Owner:SHANGHAI UNIV

Multifunctional wood inflaming retarding agent and method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of multifunctional wood inflaming retarding agent

The invention discloses a multifunctional wood inflaming retarding agent and a method for preparing smoke suppressing and inflaming retarding pinus sylvestris solid wood by utilizing of the multifunctional wood inflaming retarding agent, and relates to the multifunctional wood inflaming retarding agent capable of antiflaming, suppressing smoke and preventing running off and a technique for processing the pinus sylvestris solid wood by utilizing the antiflaming and smoke suppressing properties of the multifunctional wood inflaming retarding agent. To solve the problems that the pinus sylvestris solid wood is rich in grease and can not be immersed easily, the flame retardation property of an existing wood inflaming retarding agent is single, and antiflaming components are easy to run off, the wood inflaming retarding agent comprises, by weight, 22-56 parts of phosphoric acid amidinourea, 15-25 parts of boric acid, 24-56 parts of water-solubility ammonium polyphosphate, 1-5 parts of ammonium molybdate and 20-45 parts of silica sol. The preparation method of the inflaming retarding and smoke suppressing pinus sylvestris solid wood comprises the following steps. Firstly, the microwave process is carried out on the dried pinus sylvestris solid wood. Secondly, the pinus sylvestris solid wood is placed in inflaming retarding liquid to be pressurized and immersed in a vacuum mode. The dried inflaming retarding and smoke suppressing pinus sylvestris solid wood has a good smoke suppressing property, the smoke suppressing effect and anti-running-off property are obvious.
Owner:NORTHEAST FORESTRY UNIVERSITY

Modified material and treatment method of low-quality aggregate

The invention belongs to the technical field of building materials, and specifically relates to a modified material and treatment method of a low-quality aggregate. The modified material of the low-quality aggregate provided by the invention comprises the following components in percentage by mass: 46-50% of cement, 10-15% of a mineral admixture, 2-5% of an active powder, 0.2-0.6% of a water reducing agent, 0.001-0.004% of a viscosity adjusting agent, 0-3.2% of an expanding agent, 0-0.12% of an air entraining agent, and 0-0.0007% of a defoaming agent. The modified material provided by the invention can realize effective filling and coating modification of the low-quality aggregate through the cooperation between the components, and the adjustment of the use amount, and especially through the cooperation of the specific use amount of the cement, active powder and viscosity adjusting agent, the surface tension and viscosity of the modified material can be effectively adjusted, and a porepenetration amount and a shell coating thickness are coordinately optimized. The combined use of the inorganic and organic components promotes the secondary hydration / chemical bonding of a slurry layer, and improves the strength of an interface between the aggregate and the slurry layer. The cylindrical compress strength of the aggregate after modification treatment is increased by 40% or more, acrushing value is reduced by 30% or more, and a water absorption rate in 24 h is reduced by 15% or more.
Owner:CHINA BUILDING MATERIALS ACAD

Anodizing method improving protection performance of aluminum and aluminum alloy

The invention provides an anodizing method improving protection performance of aluminum and aluminum alloy. An anodizing solution is formed by mixing at least one of inorganic salt of sulfuric acid, sodium borate, malic acid and cerium and water according to the proportion. A voltage control manner is adopted in anodizing for anodizing treatment on aluminum or aluminum alloy materials. An anodized film layer prepared through the method is good in corrosion resistance, good in combining performance with an organic paint film and low in fatigue performance on a base body and has the beneficial effects of being simple in technology, stable in performance, high in film forming efficiency and small in environment pollution. Organic-inorganic hybrid chromium-free closing method is selected after anodizing, chromium and other poisonous and harmful substances are not contained in confining liquid completely, and waste liquid discharging does not exist in the sealing process. The sealed anodized film layer is good in corrosion resistance, and the combining force of an original anodized film layer paint film is not influenced. The anodizing method and the sealing method can be used for replacing traditional chromic acid anodizing, sulfuric acid anodizing and dichromate sealing technologies and is applied to protection of aluminum and aluminum material surfaces of various industries such as aviation.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS +1

Paint-immersion process for motor coil of washing machine

InactiveCN106026568APerfect immersion environmentStable immersion environmentPretreated surfacesManufacturing dynamo-electric machinesLacquerEngineering
The invention discloses a paint-immersion process for a motor coil of a washing machine. The paint-immersion process comprises the following steps of S1: preparing materials and tools; S2: preparing an immersion solution; S3: starting the general power supply of an automatic immersion machine, setting the voltage, choosing an automatic working mode, regulating the pitch time, and setting a preheating temperature; S4: starting a heater, an air heater and a circulating fan, enabling the automatic immersion machine to perform preheating and cooling operations, and putting a coil-inserting stator on the station of the automatic immersion machine after the cooling operation is finished; S5: performing operations of paint immersion, paint dripping, curing and workpiece taking-out; S6: removing residual paint by a scraper knife; S7: performing examination; and S8: switching off the power supply after the obtained workpiece is qualified through examination. The paint-immersion process provided by the invention is complete, and simple to operate; the surface of the immersed paint film is uniform without causing phenomena of cracks, wrinkles and exposed wires; and in addition, the paint film is firm and the paint does not fall off easily, so that high safety is achieved.
Owner:ANHUI JINSHUAI WASHING MACHINE

Virtual assembly method based on part geometric transformation information

The invention discloses a virtual assembly method based on part geometric transformation information. The method comprises the following steps of describing geometric transformation information of a rigid part in a virtual assembly process by defining a main axis and an azimuth axis in a part local coordinate system, and making classification according to the geometric shape and the assembly process of the part; for each part type, proposing a corresponding navigation trigger judgment rule and a navigation motion calculation method. In order to solve the problem that the precision and real-time performance of an existing collision detection technology are difficult to balance, a distinguishing method of normal interference and abnormal interference is provided. The degree of freedom constraint of the part is achieved by conducting motion filtering on the hand grabbing the part at present, and follow-up processing is conducted on the virtual hand; and processing of interchangeable parts in the virtual assembly process is achieved. The method does not depend on force feedback interaction equipment in use, has very good universality, can fully restore real assembly activities, and guarantees the authenticity of a simulation operation process and the accuracy of statistical and analysis results.
Owner:ZHEJIANG UNIV OF TECH

An auxiliary teaching system and teaching method based on eon

ActiveCN105278685BTheoretical knowledge deepeningImprove practical application abilityInput/output for user-computer interactionElectrical appliancesLocation trackingAnimation
The invention provides an assistant instructing system and an assistant instructing system method based on EON. A three-dimensional model of a mechanical product and a three-dimensional model of a virtual hand are established, up and down motions, left and right motions, front and back motions and rotation of the three-dimensional model of the virtual hand are achieved by a position tracker, a data glove grabs and releases the three-dimensional model of the mechanical product according to gesture change of the virtual hand, namely students master contents narrated by teachers by animation demonstration, and the students can form a brand new understanding on constituent parts, an internal structure, a disassembly process, an assembly process and the like of the mechanical product from a three-dimensional angle by means of 3D glasses through 3D demonstration parts. The assistant instructing system and the assistant instructing system method provided by the invention can be used for achieving the purposes of animation demonstration, manual disassembly, manual assembly, motion simulation and 3D demonstration, compensating the shortcomings in practical teaching of colleges and universities at present, and enabling the students to carry out manual operations when learning theoretical knowledge, which is helpful for the students to deepen the theoretical knowledge and improve the practical application ability.
Owner:湛江市佰圣信息科技有限公司

Cooking system for high-viscosity refined cotton after cotton opening

The invention discloses a cooking system for high-viscosity refined cotton after cotton opening, and relates to the technical field of refined cotton processing. The cooking system comprises a waste receiving box; a supporting frame is fixedly mounted on the top surface of the waste receiving box; the surface of the supporting frame is fixedly connected with a material guide hopper and a waste liquid discharge pipe through connecting parts; an alkali soaking mechanism and an alkali cleaning mechanism are fixedly mounted between the inner surfaces of the supporting frame in sequence from top to bottom; the alkali soaking mechanism comprises an outer shell and an alkali liquor inlet pipe; the top face of the outer shell is fixedly communicated with a feeding hopper; a liquid inlet branch pipe is fixedly mounted on the top surface of the outer shell; the inner wall of the outer shell is rotationally connected with a filtrate cylinder through a bearing; and a plurality of groups of liquid permeable holes distributed in a circumferential array are formed in the peripheral side surface of the filtrate cylinder. According to the cooking system for the high-viscosity refined cotton after cotton opening, through the design of the alkali soaking mechanism and the alkali cleaning mechanism, the system can efficiently complete alkali soaking and alkali cleaning work of cotton materials in an assembly line mode, and through the implementation of the assembly line type operation mode, the processing efficiency of the system on the cotton materials is effectively improved.
Owner:安徽森淼实业有限公司
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