38results about How to "Fast fading" patented technology

This invention relates to maintaining or re-establishing a communications session in a wireless communications system. The present invention provides a method of re-routing a call between a user device and a third party device, the method comprising: setting up a call with the third party device using a first wireless connection between the user device and an access point; monitoring a quality parameter of the first wireless connection at the access point; automatically re-routing the call from the third party device to the user via a second wireless connection between the user device and a base station in response to determining that the quality parameter of the first wireless connection has fallen below a predetermined threshold.

In a CDMA transmission power control system for controlling reverse transmission power of reverse transmission power for a mobile station, a Doppler frequency detector (50) detects a maximum Doppler frequency using a pilot symbol extracted from a desired transmission data signal per transmission power control period. When the maximum Doppler frequency is smaller than a Doppler frequency threshold, the system performs a closed loop control in a cycle of the transmission power control period. On the other hand, when the maximum Doppler frequency is larger than the Doppler frequency threshold, the system performs the closed loop control in a cycle of N times the transmission power control period in appearance.

The invention discloses an electrochromic material based on electrically induced acid effect and an electrochromic device prepared from the electrochromic material. The electrochromic material based on the electrically induced acid effect is prepared by mixing electrochromic molecules and electrolyte; the electrochromic material based on the electrically induced acid effect is used for preparing the electrochromic device; the structure of the electrochromic device is composed of a first electrode, an electrochromic medium, an ion exchange membrane, auxiliary medium and a second electrode. According to the electrochromic material disclosed by the invention, an electrically induced acid part and an acid response part are connected with a molecule, then the coloring efficiency of the electrochromic material served as the electrochromic device can be improved, and the response speed of the electrochromic device also can be increased. After proton being transferred, since the protonated acid response part is connected with a proton donor part of the electrically induced acid through a covalent bond, the acid response part and the proton donor part do not diffuse away from each other, then the proton recovery can be accelerated, namely the color fading speed of the electrochromic device is increased.

The invention provides etching-resistant jet ink and provides a method for preparing a conductive circuit by using the etching-resistant jet ink. The etching-resistant jet ink comprises a photocuring monomer, an oligomer, a pigment and a photoinitiator, wherein the photocuring monomer comprises at least one of monofunctional (methyl) acrylate, bidirectional (methyl) acrylate and tri-functional acrylate; the bidirectional (methyl) acrylate comprises at least one of bidirectional (methyl) acrylate with a glycol structure or propylene glycol structure in the molecular structure. The etching-resistant jet ink is good in flowability, applicable to jet ink technique and good in stable jet printing property, a temporary protecting layer formed after the jet ink is cured can meet the process requirements of the circuit board in the production process and is resistant to corrosion of an etching liquid without dropping, and rapid stripping can be achieved in an alkali liquid after the etching process is completed.

According to the invention, an apparatus for automatically detecting a motor vehicle's generator type is proposed, in which the characteristic voltage course is measured at a terminal (DF) of the generator (1) and compared with values stored in memory. Via an interface (3), a control unit (5) is connected to the controller (2) or generator (1) and evaluates the voltage change (deltaDF) upon a load change. To that end, the voltage at the terminal (DF) is measured and evaluated before the electrical load (8) is turned on, after it is turned, and after it is turned off. By means of this apparatus, advantageously not only the generator type (A, B) but also incorrect installations can be ascertained.

The invention discloses an ELISA kit used for on-site detection. The kit comprises a kit body; an antibody detection plate, a sample dilution reagent, positive/negative contrast, a cleaning reagent, an enzyme conjugate reagent, a substrate reagent, a stopping reagent, a disposable dropper and a cover plate membrane are arranged in the kit body; the substrate reagent is composed of a substrate, a substrate diluent and an indicator II; the substrate diluent is a concentrated solution; the sample dilution reagent, the cleaning reagent, the enzyme conjugate reagent, the stopping reagent, the substrate and the indicator II are all solid. The ELISA kit has the advantages of great portability, convenient use and high safety. Furthermore, the requirement of the on-site detection can be met.

The invention discloses photochromic cloth and a preparation method thereof, which relates to the technical field of textile fabric. The photochromic cloth of the present invention comprises a base layer, a photochromic layer, and a nano-silica layer, wherein the photochromic layer is disposed between the base fabric layer and the nano-silica layer, and is composed of a photochromic fiber layer and a photochromic microcapsule layer alternately. The photochromic fiber layer cooperates with the photochromic microcapsule layer to make the photochromic cloth achieve good photochromic effect and strong persistence under sunlight and ultraviolet light. The nano-silica in the nano-silica layer is combined with the photochromic colorant in the photochromic fiber layer and the photochromic microcapsule layer to make the photochromic cloth more easily absorb sunlight, and ultraviolet light in the UV and faster, more likely to show the color change function. The photochromic fiber layer is resistant to washing, so that the photochromic cloth has a lasting discoloration performance.

The invention provides an indene-fused 2H-naphtho-[2,1-b]pyran photochromic compound and a preparation method thereof. The molecular formula of the compound is shown in a formula I, wherein R1 and R2are hydrogen, straight-chain or branched-chain alkyl groups containing 1-6 carbon atoms, straight-chain or branched-chain alkoxy groups containing 1-6 carbon atoms, straight-chain or branched-chain halogenated alkyl groups or halogenated alkoxy groups, substituted by at least one halogen atom, corresponding to the alkyl groups and the alkoxy groups respectively, phenyl groups or substituted phenylgroups, halogen, NH2 and <->NHR. The preparation method of the compound comprises the steps that 2-methoxycarbonylphenylboronic acid pinacol ester and 4-bromine-2-naphthol are subjected to a couplingreaction, a Grignard reagent addition reaction and a cyclization reaction to obtain an intermediate 7,7-dialkyl-7H-benzo-[c]fluorene-6-phenol, and then the intermediate and 1,1-(diaryl)-2-allylene-1-ol generate I under the acid catalysis. The synthesis of the photochromic compound I has the advantages that the steps are few, the reaction conditions are mild, the operation is simple, and the reaction yield is high, a color body of the photochromic compound I is yellow or orange, and the photochromic compound I has the advantages of good fatigue resistance and high color ratio.

A fuel injection valve for internal combustion engines, having a housing (12) in which a pistonlike valve member (35) is disposed longitudinally displaceably in a bore (34) and by a longitudinal motion in an opening direction, with its end toward the combustion chamber, causes at least one injection opening (39) to communicate with a pressure chamber (37) embodied in the housing (12). An inlet conduit (14) is embodied in the housing (12) and discharges into the pressure chamber (37), and by way of it the pressure chamber (37) can be filled with fuel at high pressure. A fuel-filled control chamber (20) is also embodied in the housing (12); the pressure in the control chamber (20) at least indirectly exerts a force acting in the closing direction on the valve member (35). The control chamber (20) communicates with the inlet conduit (14) and can be made to communicate via a control valve (16) with a leak fuel chamber (23), in which a markedly lower pressure prevails than in the inlet conduit (14). In the housing (12), a damping chamber (46) is embodied, which communicates with the inlet conduit (14) via a throttle (44).

The invention relates to a sevoflurane based tranquilizer which comprises a drug and a drug carrier. The drug refers to sevoflurane. The drug carrier comprises a water absorbing material and a casing; the water absorbing material is used for carrying sevoflurane and the casing is used for covering the water absorbing material for preventing sevoflurane from volatilizing; the casing is provided with a slit, the slit is provided with a sealing unit, and sevoflurane volatilizes from the slit during treatment with the tranquilizer. The sevoflurane based tranquilizer is an inhaled drug for people to take in a breathing way, has quick action for reducing stress or tension, has low side effect, is extincted rapidly after taking effect, and has no influence on daily life and work of people taking the tranquilizer. Besides, the sevoflurane based tranquilizer is free of pungent smel and avoids tracheospasm or bronchospasm, and can be applied to sleeping induction for children.

The invention relates to a chiral binaphthopyran photochromic compound as well as a preparation method and application thereof. The compound has a structure shown as a formula (R)-I, (S)-I, (R)-II or (S)-II defined in the description, wherein R1 and R2 are the same or different, and each independently represents hydrogen, a straight chain or branched chain alkyl group containing 1-6 carbon atoms, a straight chain or branched chain alkoxy group containing 1-6 carbon atoms, phenyl or substituted phenyl or halogen. The invention also provides a preparation method of the compound. The compound prepared by the invention has the characteristics of high fading rate, good fatigue resistance, optical activity and the like.

The invention discloses a method for simply and efficiently preparing a multicolor all-solid-state electrochromic device. The method comprises the step of quickly assembling the all-solid-state electrochromic device by taking a stannic oxide/vanadium pentoxide electrochromic composite film as an electrochromic layer and a polymer solid-state electrolyte as an ionic conductive layer through an ultraviolet curing effect, Wherein the polymer solid electrolyte takes polyethylene glycol diacrylate as a solvent and lithium bis (trifluoromethanesulfonyl) imide as a solute, and the two electrodes arefirmly combined together through polycondensation reaction of polyethylene glycol diacrylate under the action of a photoinitiator. The polymer electrolyte exists in a liquid form before being cured, so that the polymer electrolyte has high wettability when being in contact with the electrochromic layer and the ion storage layer, and the purpose of full contact with an electrode material is achieved. According to the preparation method, the device assembly process is optimized, and a new direction and important reference are provided for design and preparation of the all-solid-state electrochromic device. Meanwhile, the device shows the same color change as the thin film single electrode, and is expected to be truly applied to the field of military camouflage protection.

The invention relates to a desflurane-based tranquilizer which comprises a drug and a drug carrier, wherein the drug is desflurane; the drug carrier contains a water-absorbing material and a shell; the water-absorbing material is used for bearing desflurane; the shell is used for cladding the water-absorbing material and avoiding volatilization of the desflurane; an opening is formed in the shell and is used for volatilizing the desflurane from the opening in the treatment process; and a sealing device is arranged on the opening. The desflurane-based tranquilizer provided by the invention is an inhaled drug accepted in a breathing pattern and is high in calming and tranquilizing speed and small in side effects; and moreover, the drug efficacy is quickly eliminated, and normal life and work of a drug user are not influenced. In addition, the desflurane-based tranquilizer is extremely low in biotransformation efficiency, is extremely low or zero in liver and kidney toxicity and is applicable to patients suffering from liver and kidney diseases. Moreover, the desflurane-based tranquilizer has extremely small influence on hemodynamic force and heart rate and is applicable to a patient undergoing cardiac surgery.

The invention provides non-yellowing high-bonding-force environment-friendly marking paint. The non-yellowing high-bonding-force environment-friendly marking paint comprises a component A and a component B in a mass ratio of (3-8): 1, wherein the component A comprises the following components in parts by weight: 20-40 parts of a base material, 20-40 parts of titanium dioxide, 0.2-1 part of a dispersing agent, 0.01-0.5 part of a catalyst and 20-40 parts of a solvent; and the component B is 10-30 parts of a curing agent. The non-yellowing environment-friendly marking paint is non-yellowing, and does not fade quickly as time goes on or rain erosion occurs; the product has excellent bonding force and is suitable for various substrates; and the solvent is an environment-friendly solvent, so that the harm to the body is reduced.

The invention discloses a pure natural plant hair dye which comprises the following raw materials in parts by weight: a first agent: 1-24 parts of basic amino acid, 0.1-6 parts of cysteine and 0.5-6 parts of eucalyptus oil; a second dose: 3-8 parts of platycladus orientalis, 3-8 parts of fleece-flower root, 3-8 parts of mountain ginseng, 2-6 parts of ligusticum chuanxiong hort, 2-6 parts of astragalus membranaceus, 2-6 parts of achyranthes bidentata and 0.1-8 parts of ferrous ions; and a third agent: 1-10 parts of rheum officinale, 1-10 parts of pomegranate rind, 2-8 parts of clove, 0.1-8 parts of polylysine and 0.1-10 parts of gallic acid. The components used by the hair dye are all pure natural components, the coloring effect is obvious, coloring is lasting, hair does not need to be nursed after hair dyeing, the hair dye can relieve itching, diminish inflammation and brighten hair, and the hair dye is a safe, green, pollution-free, non-toxic and non-irritant hair dyeing product.