92results about How to "Short release time" patented technology

The invention relates to a circuit (20, 50) for voltage stabilization in an onboard power supply (10), particularly for motor vehicles, which is electrically connected between the onboard power supply (10) to be stabilized and a first energy store (E1). The circuit (20, 50) comprises a diode element (24) which contains a plurality of semiconductor switches (34) connected in parallel, a pilot and control circuit (33) which determines the level of a current flowing through the diode element (24) and controls the semiconductor switches (34) of the diode element (24) on the basis of the determined current level, and a second energy store (E2) which is electrically connected to the diode element (24) and to the onboard power supply (10).

The invention discloses a trace element-doped porous calcium carbonate ceramic, and a preparation method and application thereof, belonging to the field of medical materials for bone repair. The preparation method disclosed by the invention comprises the following steps: doping Mg, Sr, Zn, Si, Cu and other trace elements in a human body into calcium carbonate through a chemical precipitation method, or doping trace elements into low-temperature phosphate bioglass used as a sintering binder, uniformly mixing the trace element-doped calcium carbonate powder, the glass binder and pore forming agent, then forming, performing isostatic pressing treatment, sintering, and removing the pore forming agent to obtain the trace element-doped porous calcium carbonate ceramic. The trace element-doped porous calcium carbonate ceramic prepared by the invention has high strength and porosity, controllable degradation rate, long-term slow release of the doped trace element ions and favorable bone conductibility and inductivity, and is a novel artificially synthesized bone repair material.

Compositions and methods are provided which can be utilized in active immunization as a prophylactic treatment or a therapeutic treatment for tumors. The compositions are employed as injectable tumor vaccines or as preparations for intratumoral administration and are capable of stimulating immune responses to specific tumor antigens. The tumor vaccines are composed of an antigenic cellular material including a plurality of inactivated tumor cells or tumor cell portions, a depot material, and an immunostimulant adsorbed to the depot material. The depot material with absorbed immunostimulant is mixed with the tumor cells or tumor cell portions to form the vaccine compositions. The preparations for intratumoral administration include the depot material adsorbed immunostimulant without the antigenic cellular material. The immunostimulant adsorbed to the depot material permits release of biologically active quantities of the immunostimulant over a period of time rather than all at once.

An electronic musical instrument includes: an input device that inputs a sound generation instruction that instructs to start generating a musical sound and a stop instruction that instructs to stop the musical sound being generated by the sound generation instruction; a sound source that starts generation of a musical sound in response to the sound generation instruction, and stops generation of the musical sound in response to the stop instruction; an on-on time timer device that measures a time difference between a first sound generation instruction inputted by the input device and a second sound generation instruction inputted next to the first sound generation instruction; a gate time timer device that measures a time difference between the second sound generation instruction and a stop instruction that instructs to stop a musical sound generated in response to the second sound generation instruction; an attack characteristic setting device that sets an attack characteristic of the musical sound generated in response to the second sound generation instruction to have a shorter attack time as the time difference measured by the on-on time timer device becomes shorter; a release characteristic setting device that sets a release characteristic of the musical sound generated in response to the second sound generation instruction to have a shorter release time as the time difference measured by the gate time timer device becomes shorter; and an instruction device that instructs the sound source to start generation of a musical sound with an attack characteristic set by the attack characteristic setting device in response to an input of the second sound generation instruction by the input device, and instructs the sound source to stop generation of a musical sound with a release characteristic set by the release characteristic setting device in response to an input of the stop instruction by the input device.

The invention discloses a trimetazidine sustained-release mini-pill composition. The trimetazidine sustained-release mini-pill composition comprises sustained-release pills A and C or sustained-release pills A, B and C. The sustained-release pills A, B and C have different increased weights. The trimetazidine sustained-release mini-pill composition has the advantages that two or three types of film-controlled sustained-release mini-pills with different increased weights are proportionally mixed with one another to obtain the trimetazidine sustained-release mini-pill composition, accordingly, zero-order release effects can be realized by the trimetazidine sustained-release mini-pill composition, and the trimetazidine sustained-release mini-pill composition can be released in a long-acting and sustained manner.

The invention relates to advance left-hand steering and its driving method. According to the invention, two bidirectional-lane level crossings are arranged. Four unidirectional-lane separated roads (1) are disposed at the crossroad of the two level crossings. An advance left-hand steer waiting zone (2) is arranged at the level center of the separated level crossings. Steer waiting lanes for (3) are arranged in the steer waiting zone (2). A left-turn driving signal lamp (6) is mounted over a lamppost at each exit road. When driving at the entrance roads at the traffic light, through left-and-right-hand turning traffic flows can park to wait for green lights. When facing green lights, through right-hand turning traffic flows enter the crossings. After left-hand turning traffic flows wait to enter through right-hand steering crossings for 10-15 seconds and when the left-turn driving signal lamp turns green, the left-hand turning traffic flows enter the crossings and drive into the advance left-hand steer waiting zone (2), so as to wait for through traffic flows at another level crossings drive away from the crossings at the same time. There is no intersection conflict point when through left-hand turning traffic flows are at the same phased crossing. Through the design provided by the invention, the waiting time for green lights is short when vehicles are at the entrance roads, blowdown flow rate of automobiles is minimized, and it is safe for driving.

The invention discloses a preparation method of the slow-release fertilizer and belongs to the field of fertilizer manufacture technology. The preparation method comprises the following steps: a) mixing sodium alginate, lecithin, plant oil and dodecylbenzenesulfonic acid, potassium salt, and carrying out ultrasonic dispersion to obtain mixed liquor; b) uniformly coating the surface of fertilizer master batch A with the mixed liquor by a vacuum spray mode, drying and cooling to room temperature so as to prepare fertilizer granules; c) mixing fertilizer master batch B and gelatinized starch and the fertilizer granules so as to prepare composite fertilizer granules; and d) mixing beta-cyclodextrin and composite fertilizer water and stirring to obtain a paste, adding the composite fertilizer granules, stirring, drying and cooling to room temperature so as to prepare the slow-release fertilizer. The method is suitable for preparation of a water-soluble slow-release fertilizer. The coating material is a degradable material and is pollution-free to soil. The technology of the invention is simple and convenient to operate. The period of the technological process is short, and no waste is generated. The method accords with the idea of atom economy and environment protection. The invention is beneficial to industrial promotion and application.

The invention provides a poly (L-glutamic acid)/polyacrylic acid hydrogel and preparation method thereof. The hydrogel contains poly (L-glutamic acid-g-hydroxy ethyl acrylate), polyacrylic acid and water. The preparation method includes the following steps: pH value of acrylic acid buffer solution is regulated to be 8-9, so as to obtain a first reaction solution; poly (L-glutamic acid-g-hydroxy ethyl acrylate) buffer solution is added into the first reaction solution, so as to obtain a second reaction solution; initiator is added into the second reaction solution to obtain a third reaction solution, the third reaction solution is subject to heating or irradiation to obtain reaction product; and the reaction product is placed into deionized water to be soaked, thus obtaining the poly (L-glutamic acid)/polyacrylic acid hydrogel. The poly (L-glutamic acid)/polyacrylic acid hydrogel prepared by the preparation method has biodegradability and high pH sensibility and is especially suitable for being used as oral drug release carrier.

The invention relates to an electric pressure cooker with a pressure relieving function. The electric pressure cooker comprises a cooker body, a cooker cover and a jet flow impact cooling device, wherein the cooker cover is matched with the cooker body to be used; the jet flow impact cooling device comprises a circulation water path, a jet flow pump connected onto the circulation water path and aspraying device arranged in the pot cover; and the spraying device communicates with the circulation water path. The temperature in the cooker is fast lowered by using the jet flow impact cooling cooker cover; the reduction speed of the pressure in the cooker is further accelerated; the pressure relieving time is shortened; by using strong heat exchange capability of the jet flow impact cooling, the demanding quantity of the cooling water can be reduced; and the size of a water storage device and the size of the whole electric pressure cooker are reduced.

The invention discloses a semi-automatic tank car loading arm and a control method thereof. The semi-automatic tank car loading arm comprises a stand column, a liquid-phase arm and a gas-phase arm. The liquid-phase arm and the gas-phase arm each comprise an inlet connecting piece, an inner arm, an outer arm, a vertical pipe, a pneumatic power assisting system, a nitrogen purging system, an emptying system, spring balance mechanisms, hydraulic driving mechanisms and low-temperature rotary joints. For each arm, the inlet connecting piece is fixed to the stand column and connected with the innerarm through a first rotary joint; the inner arm is connected with the stand column; the inner arm, a second rotary joint, a right-angled elbow, a third rotary joint, the outer arm, a fourth rotary joint, a right-angled elbow, a fifth rotary joint and the vertical pipe are connected in sequence; the nitrogen purging system and the emptying system are respectively arranged on the inner arm and the outer arm; the two spring balance mechanisms are arranged between the third rotary joint and the outer arm, as well as between the fifth rotary joint and the vertical pipe respectively; and the hydraulic driving mechanisms are arranged between the stand column and the inner arm, at the second rotary joint, between the third rotary joint and the outer arm and between the fourth rotary joint and thevertical pipe respectively. Operation efficiency of the loading arm can be improved.

The invention discloses a preparation method of a biodegradable nitrogen and phosphorus slow-release fertilizer and belongs to the field of fertilizer preparation technology. The preparation method comprises the following steps: a) mixing carrageenan, soyabean lecithin, rapeseed oil, a potassium dihydrogen phosphate solution, expanded vermiculite, fish protein powder and sodium stearate, and carrying out ultrasonic dispersion; b) coating a fertilizer master batch A with the mixed liquor, drying and cooling to room temperature so as to prepare fertilizer granules; c) mixing a fertilizer master batch B, expanded corn flour and the fertilizer granules so as to prepare compound fertilizer granules; and d) obtaining beta-cyclodextrin and a potassium nitrate solution, adding the compound fertilizer granules, stirring, drying and cooling to room temperature so as to prepare the biodegradable nitrogen and phosphorus slow-release fertilizer. The method is suitable for preparation of a water-soluble slow-release fertilizer. The coating material is a degradable material and is pollution-free to soil. The technology of the invention is simple and convenient to operate, has short technological cycle, causes no wastes, accords with the ideal of atom economy and environmental protection, and is beneficial to industrial promotion and application.

The invention relates to a rapid disconnect device for surge arrestors, in particular plate-type or flat varistors, comprising at least one element that is maintained under a mechanical stress, and a disconnection point for disconnecting the surge arrestor from the respective power grid upon thermal overload, wherein the disconnection point comprises contacts, the positions of which vary relative to one another, wherein one of said contacts is designed to be fixed. According to the invention, the contacts of varying positions relative to one another are electrically connected without the use of solder in such a way that incident current forces act primarily in the contact force direction and such that the moving contacts of the positionally-variable contacts of a lost element located at the surge arrestor and thermally detachable therefrom can be moved from a closed position to the disconnected position.

The invention aims to provide a sodium valproate sustained release tablet which is stable in drug release and safer in medication. The sodium valproate sustained release tablet is characterized by consisting of sodium valproate, valproic acid and physiologically acceptable auxiliary materials. The sustained release tablet provided by the invention has the characteristics of cheap and easily available prescription composition, simple process equipment, constant and lasting drug release and the like.

The invention discloses a balloon catheter. The balloon catheter comprises an inner tube, a balloon, a developing ring, an outer tube and a catheter base, wherein the developing ring is embedded in the inner tube through pressing, and the far end of the inner tube is fixed in a distal part of the balloon; the far end of the outer tube is fixed in the near end of the balloon, and the near end of the outer tube is fixed in the catheter base; the inner wall of the outer tube and the outer wall of the inner tube are both coated with a coating. Each coating comprises a methyl silicon oil layer anda polydimethylsiloxane layer, wherein the methyl silicon oil layer is arranged between the inner wall of the outer tube/the outer wall of the inner tube and the polydimethylsiloxane layer. A filling cavity of the balloon catheter is coated with a coating, so that the surface smoothness of the filling cavity is improved on the basis that the original the original pushing property, traceability andcompressive strength of the balloon catheter are kept, then the friction between the filling cavity and contrast liquid is reduced, and the pressure relief time of the balloon is shortened.

A shutter apparatus includes a shutter base plate having an opening, a light shield movable between a closed state for closing the opening and an open state for opening the opening, a cam member rotatable in a first angle range, a second angle range, and a third angle range between the first angle range and the second angle range, the cam member that rotates in the third angle range rotating the light shield, a motor configured to drive the cam member, a forcing member configured to force the cam member so as to rotate the cam member from the first angle range to the third angle range, and a restricting member configured to restrict the forcing member from forcing the cam member in at least part of the first angle range.

The invention relates to the technical field of aluminum alloy film-stripping treatment, in particular to a method for removing an anodic oxide film on the surface of a seven-series aluminum alloy anda film removing agent. According to the method for removing the anodic oxide film on the surface of the seven-series aluminum alloy, the anodic oxide film on the surface of the seven-series aluminumalloy substrate is removed through procedures such as degreasing and oil removal treatment, film removal treatment, neutralization and ash removal treatment and drying treatment. The film removing agent comprises the following components in parts by mass of 1-10 parts of inorganic base, 10-60 parts of organic base, 1-10 parts of corrosion inhibitor, 1-10 parts of complexing agent and 0.1-1 part ofbrightener. Compared with a traditional acidic film removing agent and a traditional alkaline film removing agent, the film removing agent has the advantages that the treatment temperature conditionis more mild, the film removing speed is higher, and the film removing treatment time is shorter; and moreover, the film removal treatment does not damage the high-light surface of the seven-series aluminum alloy substrate, does not corrode the surface of the seven-series aluminum alloy, and can meet the air tightness test requirements of enterprise production on the size requirement.