摘要:
A stretcher comprises a patient support area supported by front legs and rear legs. The front legs and rear legs are coupled by a gear mechanism, and an actuation device coupled to the gear mechanism effects retraction or extension of the stretcher in a smooth and continuous motion. The actuation device is operable to lock the gear mechanism to position the stretcher at any desired height between fully extended and fully retracted.
摘要:
A visible wavelength range proximity sensor includes a visible light emitter with a peak wavelength in a visible wavelength range, and a plasmonic ambient light sensor, where a proximity sensing mode and an ambient light sensing mode are time multiplexed.
摘要:
An apparatus to control displacement of a body spaced-apart from a surface includes a flexure system having a first flexure member defining a first axis of rotation and a second flexure member defining a second axis of rotation. A body is coupled to the flexure system to move about a plurality of axes. An actuation system is coupled to the flexure system to selectively constrain movement of the body along a subset of the plurality of axes.
摘要:
A method for controlling dehydration of a washing machine, in which one reference degree of eccentricity in the direction, in which the vibration of a tub is large, is set to be lower than the other reference degree of eccentricity in the direction, in which the vibration of the tub is small, or one reference degree of eccentricity in the direction to the installation of a drying device is set to be lower than the other reference degree of eccentricity in the reverse direction, thereby preventing the washing machine from being excessively vibrated and allowing the washing machine to easily perform a dehydrating operation.
摘要:
The present invention relates to a recombinant Escherichia coli having phbCAB originated from Alcaligenes eutrophus and an overproduction method of polyhydroxyalkanoate using the same, more precisely, a recombinant Escherichia coli ‘MG1655/pTZ18U-PHB’ or ‘JIL938/pTZ18U-PHB’ having phbCAB originated from Alcaligenes eutrophus and an overproduction method of polyhydroxyalkanoate comprising the steps of preparing transformed Escherichia coli having phbCAB originated from Alcaligenes eutrophus, inoculating and culturing the cells (growth phase), inducing the production of polyhydroxyalkanoate in the recomibnant Escherichia coli (stationary phase and producing phase), and inducing the extracellular secretion of the polyhydroxyalkanoate from the recombinant Escherichia coli. The method of the present invention facilitates not only overproduction of polyhydroxyalkanoate such as polyhydroxybutyrate by a simple batch culture but also industrial use of biodegradable polyhydroxyalkanoate replacing conventional non-biodegradable plastics by its simple and easy fermentation, separation and purification process.
摘要:
A spin-dry control method in a washing machine includes sensing a first clothes amount contained in a washing tub, sensing an unbalance of the clothes and a second clothes, after execution of the sensing the first clothes amount, determining a final clothes amount, based on the first clothes amount and the second clothes amount, and executing a main spin-dry process, based on the final clothes amount.
摘要:
The present invention includes a template comprising a plurality of protrusions and a plurality of recessions with a distance between a zenith of any of the plurality of protrusions and a nadir of any one of the plurality of recessions being less than 250 nm.
摘要:
A variable speed motor is disclosed. The variable speed motor includes: a main winding including first and second main windings, and an auxiliary winding including first and second auxiliary windings, wherein the main winding and the auxiliary winding are wound on a stator to form a plurality of poles; and a plurality of relays for performing a switching operation between serial/parallel connections of the first and second main windings or the first and second auxiliary windings. The variable speed motor includes: a stator on which a 4-pole winding and a 12-pole winding are wound; a plurality of tap windings connected in series to a 4-pole main winding forming 4 poles, for extending a variable range of rotation speed of the motor during a 4-pole operation mode; and a phase control circuit for varying rotation speed of the motor by controlling a phase of an input power-supply signal during a 12-pole operation mode. Therefore, the variable speed motor greatly extends the range of a variable speed of the motor, and does not require an additional drive unit for varying the motor speed, such that production costs are greatly reduced, and electromagnetic vibration noise caused by a low-speed control mode of the motor is also greatly reduced. Rotation speed of the motor is controlled by a phase control operation and a winding switching operation, such that the variable speed motor effectively controls the motor speed, and greatly reduces power consumption.
摘要:
A dish washer includes a sump communicated with a tub to accommodate water, a water supply pump for pumping the water in the sump, a filtering device for receiving a part of the water pumped through an auxiliary passageway to filter the pumped water and to supply the filtered water to the sump again, and a bypass for bypassing the water to be supplied to the filtering device to the tub or the sump when the filtering device is blocked by sewage. The bypass includes a first sensor detecting water passing therethrough and the filtering device being blocked and transmitting the detected result to a controller, and a second sensor detecting and informing the water pollution level to the controller when the filtering device is blocked. A controlling method thereof determines an algorithm of a cycle for washing or rinsing dishes using information acquired from the first and the second sensors.
摘要:
The present invention relates to a three-dimensional printing prototyping system which includes a prototyping chamber having a prototyping table capable of moving up and down by a predetermined range, a material containing chamber containing a powder material and having a material supply table capable of moving up and down by a predetermined range, and a material supplying means for supplying the powder material contained in the material containing chamber to the prototyping table as much as a sectional thickness corresponding to divided section data of a three-dimensional prototype to be prototyped. The system of the present invention comprises a printing head for injecting a photocuring adhesive material to a region, corresponding to the sectional data, on the powder material supplied to the prototyping table; a curing device for photocuring at least the region on which the adhesive material is injected; and a control computer for controlling the printing head and the curing device such that the adhesive material is injected and cured, respectively, on the region corresponding to the divided section data of the three-dimensional prototype. According to the present invention, a period of time required in curing a three-dimensional prototype can be remarkably shortened and the three-dimensional prototype with its superior solidity can be obtained.