摘要:
An ultrasonic wave nebulizer has a vibrator-heater assembly unit (4) mounted at bottom of a water container (1) for converting water to mist, and heating water to provide warm mist. The assembly unit (4) has a circular piezoelectric vibrator element (9), and a ring-shaped conductive plate (7) surrounding said vibrator element (9). A heater (11) is attached on the rear surface of the conductive plate (7) so that the heater (11) is out of water. The assembly unit (4) has also a circuit element (13) for energizing the vibrator element (9). Water is heated, preferably, at less than 70.degree. C.
摘要:
In an ultrasonic wave nebulizer having a piezoelectric vibrator (1) at the bottom of a water container for exciting ultrasonic vibration of water on the water surface to convert water to mist, a flat plate (16) having a center aperture (15) is provided above the vibrator (1) with a spacing (Z) between the plate (16) and the vibrator (1), so that the aperture (15) is positioned above the center of the vibrator (1). The plate (16) has no further apertures except the center aperture (15). The diameter (D) of the aperture (15) is smaller than the diameter (A) of the vibrator (1). The presence of the aperture (15) above the vibrator (1) improves the performance of the nebulizer, and increases the generation of mist.
摘要:
A heater for heating a liquid in which the electrical contact between a PTC thermistor and electrode plates is surely realized, and the thermal coupling and the thermal efficiency are excellent. In a case 1, an internal space 13 has an opening 14 at one side portion, and the whole of the periphery of the case is closed except the opening 14. A pair of electrode plates 21 and 22 have projections 211 and 221 on faces 212 and 222, and are housed in the internal space 13 of the case 1 in such a manner that their other faces 223 are opposed to heat radiating faces 11 and 12. The PTC thermistors are disposed between the electrode plates 21 and 22 in such a manner that projections 211 and 221 are contacted with the electrodes 32 and 33, respectively. Thermal conductive fillers 41 and 42 made of a resin are charged between the electrodes 32 and 33 of the PTC thermistors 3 and the electrode plates 21 and 22 so as to fill the gaps which are formed by the projections 211 and 221.
摘要:
An ultrasonic wave nebulizer for converting water or liquid to mist has a disc-shaped piezoelectric vibrator (1) which has a pair of surfaces one of which is defined as an operation surface. A mesh (3) is located close to said operation surface so that a gap (G) or a thin water or liquid film is defined between the mesh and the operation surface. The gap spacing is smaller than the diameter of water drop which is composed by surface tension of water when no mesh were located. Upon excitation of the vibrator with high frequency, the water film is converted to mist. Fresh water is supplied in said gap spacing through capillarity. The exciting frequency is almost the same as the resonant frequency of the vibrator. The present nebulizer is useful for a small atomizer which operates with small power consumption.
摘要:
An ultrasonic wave nebulizer for converting water or liquid to mist has a disc-shaped piezoelectric vibrator (TD) which has a pair of surfaces one of which is defined as an operation surface. A thin plate (21) having a plurality of small holes or mesh is located close to the operation surface so that a gap or a thin water or liquid film is defined between the mesh and the operation surface. The gap spacing is smaller than the diameter of a water drop which is composed by surface tension of water where no mesh is located. Upon excitation of the vibrator with high frequency power, the water film is converted to mist. The exciting frequency is almost the same as the resonant frequency of the vibrator. The high frequency power is intermittent having duty ratio (D.sub.ON /D) in the range from 10% to 70% so that instantaneous exciting power is high to facilitate water to mist conversion while average power is low to keep temperature at the operation surface low. The present nebulizer has many applications, including medical inhaler, a toy which generates pseudo smoke, etc. (FIG. 3)
摘要:
The present invention provides a polytetrafluoroethylene powder having moldability/processability as well as electrical characteristics in microwave bands. The present invention is a modified polytetrafluoroethylene powder which has (1) a dielectric loss tangent at 12 GHz of not higher than 2.0×10−4 and (2) a cylinder extrusion pressure of not higher than 45 MPa at a reduction ratio of 1600.
摘要:
The present invention aims to provide a novel method for producing an aqueous dispersion containing non-melt-processable polytetrafluoroethylene particles. The present invention relates to a method for producing an aqueous dispersion containing non-melt-processable polytetrafluoroethylene particles, the method including polymerizing tetrafluoroethylene in an aqueous medium in the presence of perfluoro hexanoic acid or its salt.
摘要:
Methods, apparatuses, and computer program products for memory access to a dual in-line memory module (DIMM) form factor flash memory are provided. Embodiments include receiving, by a controller from a processor through cacheable memory in the processor, a read request; transmitting, by the controller, the read request to the DIMM form factor flash memory; polling, by the controller, a read queue in the DIMM form factor flash memory until data is ready for the read request; copying from the DIMM form factor flash memory, by the controller, the data corresponding to the read request to a read queue in the controller; transmitting, by the controller on an interface between the controller and the processor, an invalidate command for the cacheable memory; and in response to receiving the invalidate command, reading by the processor the data stored in the read queue in the controller.
摘要:
Disclosed are a device, a system, and a method for setting standard work times that take real-world manufacturing capabilities into account. Provided is a standard work time calculation device (10), which analyzes fluctuations in production line assessment indices on a per time period basis, and computes standard work times for each region, as classified according to the degree of fluctuation. The standard work time calculation device (10) comprises a fluctuation coefficient computation unit (111), which computes coefficients of fluctuation for the assessment indices, a fluctuation region identification unit (112), which identifies regions of fluctuation with coefficients of fluctuation that are greater than or equal to predetermined thresholds, and a standard work time computation unit (113), which computes standard work times for regions of fluctuation.
摘要:
A compound represented by the general formula (1): -Q1-Q2-T0-N(R1)-Q3-N(R2)-T1-Q4 (1) wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6-membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 is a group in which Q5 is an alkylene group having 1 to 8 carbon atoms, or the like; and T0 and T1 are carbonyl groups or the like; a salt thereof, a solvate thereof, or an N-oxide thereof.The compound is useful as an agent for preventing and/or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.