92results about How to "Extended closing time" patented technology

A method for sterilizing a medical device comprising a hydrophilic coating using radiation said method comprising the steps of bringing the medical device having such coating in contact with an aqueous liquid for wetting the hydrophilic coating, said liquid comprising a solution of a hydrophilic polymer and sterilizing the device by applying a sufficient amount of radiation provides coated devices showing a significantly increased and prolonged water retention and lower friction coefficient when wet.

The present invention discloses a circuit that generates a variable frequency pulse width modulation (VF PWM) signal. Different from the conventional PWM controller, the frequency and duty cycle of the output PWM signal vary with the error-amplified voltage of the feedback loop simultaneously in this invention. The higher the error-amplified voltage of the feedback loop is, the lower the duty cycle with lower frequency will be. A very low duty cycle PWM signal can be generated stably while its frequency is very low.

A display of color sequence type consists of a liquid crystal face plate, a back light source, a driving circuit for generating pixel voltage to drive said liquid crystal face plate and a back light time delay control unit for delay-regulating close time point of back light source, setting said close time point in next sub-frame and using said delay close function to make liquid crystal display have excellent uniformity of picture.

An opening/closing valve (70) is provided in an oil feed pipe (43). When a liquid refrigerant enters from an oil separator (22) into the oil feed pipe (43), the temperature of the liquid refrigerant depressurized by the opening/closing valve (70) is suddenly lowered. When the lowering amount of the temperature detected by a temperature sensor (73) exceeds a prescribed value, it is judged that theliquid refrigerant enters into the oil feed pipe (43), and the valve (70) is closed.

The present invention provides a multimeric form of a Tie 2 binding peptide monomer, wherein the multimeric form has Tie 2 agonist activity. The multimeric form, preferably a tetramer, stimulates angiogenesis and promotes wound healing. The present invention also features pharmaceutical compositions comprising the multimeric Tie 2 agonists, including those suitable for topical or systemic administration. Methods of using the multimeric Tie 2 agonists of the invention for stimulating angiogenesis and for promoting healing of wounds, such as diabetic ulcers or skin grafts, are also provided.

The present invention discloses an MEMS universal inertia switch capable of identifying a load orientation interval. The switch comprises an insulation substrate, an axial electrode supporting base, a radial electrode supporting base, a spring supporting base, an axial electrode, an annular inertia mass block electrode, a spacing stop post, a radial electrode, a snake-shaped support spring, a radial electrode connecting strip, a radial electrode connecting strip and at least one mass block electrode connecting strip. The MEMS universal inertia switch capable of identifying the load orientation interval has good response for the acceleration load at any one direction from the upper portion of the substrate to play a switch on/off effect, and can effectively identify the space orientation of the acceleration load which the switch has so as to solve the problem that a current MEMS universal inertia switch cannot identify the load space orientation, and the axial threshold of the closure of the switch is larger than a radial threshold thereof to realize axial deterring and radial sensitivity of the switch.

A pulse voltage is applied on a process gas to generate discharge plasma. The pulse voltage has a duty ratio controlled in a range of 0.001 percent or more and 8.0 percent or less. Preferably, the discharge plasma has an electron density of 1×10¹⁰ cm⁻³ or larger and an electron temperature of 1.5 eV or lower at a supplied power of 1.0 W/cm² or more per a unit area of a discharge electrode.

The invention discloses a control method, a control system and an air conditioner. The control method is used for the air conditioner, and comprises the following steps of determining a current working mode of the air conditioner when a shutdown signal is received, and controlling an outdoor unit of the air conditioner to be closed; setting an indoor fan and an air guide device of the air conditioner to run according to a preset working state according to the current working mode to make an temperature of indoor heat exchanger of the air conditioner close to indoor environmental temperature; when a preset condition is met, controlling the indoor fan and the air guide device to be sequentially closed. According to the technical scheme, noise produced after an indoor unit of the air conditioner is shut down can be effectively reduced, dependence on acquisition and a feedback link of a temperature sensor and the probability of influence of a failure or occurrence of problems in the feedback link of the temperature sensor on a noise reduction effect can further be reduced, and user experiences are further improved.

A UAV (unmanned aerial vehicle) operator state monitoring system based on multi-sensor fusion comprises multiple kinds of sensors used for monitoring states of a UAV, a computer used for processing data collected by the various sensors as well as a displayer for displaying and controlling the states of the UAV; a UAV operator knows the state of the UAV through the displayer and controls the UAV, the multiple kinds of sensors collects various state messages of the UAV operator in real time, the state monitoring for the UAV operator is realized, the sensors send the collected state messages to the computer for data processing, and finally, a computer outputs a state evaluation result of the operator. The system can evaluate the working state of the operator in real time, and the evaluation result is used for calculating the decision level of the UAV operator; the system effectively prevents the man-out-of-the-loop incidents, so that flight accidents are avoided, and the UAV completes missions effectively and safely.

In a direct injection gasoline engine, at acceleration operation, an amount of internal EGR is increased by advancing exhaust valve closing timing, and also fuel injection pressure is increased. In this case, range of increase in fuel injection pressure is determined on the basis of the exhaust valve closing timing at present.

The invention provides an elevator door closing control system and control method, and relates to the technical field of elevator control. The elevator door closing control system comprises multiple data collection devices used for collecting first data, within the first preset range, in an elevator door and collecting second data, within the second preset range, outside the elevator door, a controller and a portal crane control device; the controller is used for receiving first data and second data and judges whether a person exists in the first preset range and the second preset range or not, and moves in the direction of the elevator door with the speed larger than the preset speed; the portal crane control device is configured to control the elevator door to stop from closing and enable the elevator door to enter in the complete opening state again when it is judged that the person exists in the first preset range and the second preset range, and moves in the direction of the elevator door with the speed larger than the preset speed. According to the elevator door closing control system, the phenomenon that the person needs to enter in and go out of the elevator, and the elevator door is directly closed is avoided, great convenience is brought to the person entering in and out of the elevator door, and the phenomenon that the elevator is closed in advance, and the person entering in and out of the elevator is accidentally injured is avoided.

An LED driver is provided having a gate drive integrated circuit with an adaptive operating mode which operates between a first operating mode and a second operating mode. The gate drive integrated circuit is designed to primarily operate in the first operating mode which includes a predetermined minimum on-time and a predetermined maximum off-time for enabling and disabling gate drive signals to a switch, respectively. The second operating mode begins at the minimum on-time and the maximum off-time. The LED driver further includes a controller configured to monitor an on-time and an off-time of the gate drive signals. The controller is further configured responsive to the second operating mode to fix the on-time equal to the predetermined minimum on-time and to continually adjust the off-time greater than or equal to the maximum off-time.

An active air flap and electric thermostat integration control method for a vehicle may include a first control step of controlling opening and closing of an active air flap (AAF) depending on whether the vehicle starts-up, a second control step of controlling opening and closing of an electric thermostat (ETS) and the opening and closing of the AAF according to an engine temperature, a third control step of controlling the opening and closing of the ETS and the opening and closing of the AAF according to an engine load, a fourth control step of controlling the opening and closing of the ETS and the opening and closing of the AAF depending on whether a brake is operated, and a fifth control step, by the ECU, of controlling the opening and closing of the ETS and the opening and closing of the AAF according to a coolant temperature.

The invention relates to a device for increasing the turning rate of an operational amplifier, an auxiliary output device and an auxiliary control device are added after the output stage of the operational amplifier, the current of the output stage is mirrored by the auxiliary control device and is compared with the reference current, thereby generating an auxiliary push-pull control signal to control the auxiliary output device; when the voltage level of an output signal is not equal to the voltage level of an input signal essentially, the auxiliary control device is controlled to start the auxiliary output device to provide an auxiliary output current to an output end, when the voltage level of the output signal is equal to the voltage level of the input signal essentially, the auxiliary output device is closed.

A control system of a compression-ignition engine which performs SPCCI combustion in which mixture gas is ignited with a spark plug to be partially combusted by SI combustion and the rest of mixture gas self-ignites to be combusted by CI combustion, is provided. When the engine is operated at least in a given first operating range, a controller of the device controls a variable intake mechanism so that an A/F lean environment where an air-fuel ratio in a cylinder becomes higher than a stoichiometric air-fuel ratio is formed, while causing the spark plug to perform spark ignition at a given timing so that the mixture gas combusts by SPCCI combustion, and controls so that, under the same engine load condition, an intake valve close timing is more retarded as the engine speed decreases, within a range where an amount of air inside the cylinder decreases by retarding the close timing.

The invention belongs to the technical field of urban underground engineering and particularly relates to a prefabricated supporting pipe piece inverted 'T'-shaped excavation method and a temporary supporting structure adopted by an urban shallow buried large-section tunnel. The temporary supporting structure comprises prefabricated temporary vertical supporting pipe pieces and temporary transverse supporting pipe pieces, wherein the middle partition wall of an upper left step is formed by splicing and erecting the temporary vertical supporting pipe pieces; an inverted arch of the upper left step is formed by splicing and erecting the temporary transverse supporting pipe pieces; an inverted arch of an upper right step is formed by splicing and erecting the temporary transverse supporting pipe pieces; and each temporary vertical supporting pipe piece is provided with a grouting hole. According to the prefabricated supporting pipe piece inverted 'T'-shaped excavation method and the temporary supporting structure adopted by the urban shallow buried large-section tunnel, the temporary supporting structure does not drop to the bottom by adopting temporary vertical supports, and the temporary vertical supports are closed with temporary transverse supports to form an innovative inverted 'T'-shaped excavation method; and an upper step is divided into the upper left step and the upper right step for two-step excavation, and an area of the one-time remolding to a tunnel face soil body is reduced. The construction method provided by the invention has the advantages of simple step, strong operability as well as remarkable economic benefit and social benefit and saves the land.