30results about How to "Reliable size" patented technology

The present invention includes a method of making a plurality of nanoparticles comprising single crystalline spherical BaZrO₃ particles, cubic BaZrO₃ particles or a mixture of both. The method comprises: providing a mixture of a barium precursor, a zirconium precursor and a hydroxide salt or hydroxide salts; heating the mixture to an isothermic annealing temperature, wherein the annealing temperature is in a range of from about 470° C. to about 800° C.; annealing the mixture at the isothermic annealing temperature for an annealing time of in a range of about 15 minutes to about 280 minutes; and cooling the mixture at a fixed cooling rate to form the plurality of nanoparticles, wherein the cooling rate is in a range of from about 2° C./minute to about 200° C./minute. The ratio of spherical particles to cubic particles in the plurality is greater if the isothermic annealing temperature is at the higher end of the range; the ratio of spherical particles to cubic particles in the plurality is greater if the annealing time is at the higher end of the range; and the ratio of spherical particles to cubic particles in the plurality is greater if the cooling rate is at the lower end of the range.

Turbo-compressor/generator trains including high pressure ratio compressors with multiple intercooling and related methods are provided. A high pressure ratio compressor with multiple intercooling includes a casing with plural chambers, one or more shafts penetrating inside the chambers, and impellers mounted on the one or more shafts inside the chambers, respectively. Each chamber has a gas inlet and a gas outlet to allow gas flow to be input into and to be output from the respective chamber. A gas flow is successively compressed in each of the chambers, and is cooled outside the compressor when transferring from one chamber to a next chamber among the plural chambers.

An automatic document transportation device (ADF) includes a transportation path, a resist roller, transportation rollers, a scanning unit, a document discharge roller and a document length sensor. The transportation path is formed from a document tray to a document discharge tray. After a leading edge of an original document fed into the transportation path from the document tray makes contact with a standstill roller surface of the resist roller and a skew of the original document is corrected, the resist roller rotates to nip and transport the original document. The transportation rollers are arranged appropriately along the transportation path downstream of the resist roller, and nip and transport the original document. The scanning unit scans the transported original document. The document discharge roller discharges the scanned original document onto the document discharge tray.

The invention relates to a method for determining the size d of a transparent particle, according to which method the particle is illuminated with light from a light source, a radiation detector measures a time-resolved intensity profile of light of the light source scattered by the particle, a reflection peak (10) and a refraction peak are determined in the intensity profile and the size d of the particle is determined based on a time difference between the reflection peak (10) and the refraction peak. The method according to the invention is characterized in that the time-resolved intensity profile is measured at a definable scattering angle θs, a first second-order refraction peak (11) and a second second-order refraction peak (12) having a mode different from that of the first refraction peak (11) being determined, a characteristic variable γ being determined as the ratio of a first time difference Δt₀₁ between the reflection peak (10) and the first refraction peak (11) and of a second time difference Δt₀₂ between the reflection peak (10) and the second refraction peak (11), and the size of only those particles being determined for which the characteristic variable γ corresponds to a definable value.

The invention provides a device capable of replacing a valve under pressure. The device comprises a plugging device, a combining part, a blowout prevention pipe, a hydraulic cylinder, a piston rod and an operating rod. One end of the combining part is detachably connected to the plugging device, and the blowout prevention pipe contains the plugging device and the combining part and is connected with the hydraulic cylinder. The plugging device is mainly composed of a sealing rubber sleeve, a slip bowl seal assembly, a differential pressure type piston and slips, the slips can be automatically unfolded through fluid pressure, and thus safe bowl seal is achieved. One end of the combining part is connected with the hydraulic cylinder through the piston rod and the operating rod which penetrate through the blowout prevention pipe. The invention further provides a method for replacing a valve under pressure with the device capable of replacing a valve under pressure. The device achieves seal, bowl seal, seal removal and internal pressure balance of a tool, the complex functions can be continuously and automatically completed in one travel, and thus the device is easier and more reliable to operate. Uncertainty caused by manual operation is reduced, safety in the construction process is guaranteed, no pollution will be caused to the environment, and construction cost is greatly reduced.

An apparatus for measuring a crystal grain size of a steel plate according to an embodiment of the present invention may comprises: an ultrasound generating unit for applying ultrasound to one point of a steel sheet; an ultrasound receiving unit for receiving propagated ultrasound at two points spaced different distances apart from the one point of the steel sheet; and a crystal grain size calculating unit for calculating an average crystal grain size of the steel sheet according to intensities of the ultrasound propagated to the two points and an attenuation coefficient according to a distance between the two points. The apparatus can calculate an attenuation coefficient, regardless of a change of surface characteristics, such as surface reflectance, surface roughness, or the like.

In an image forming device, on a farther end side from each paper guide of a manual paper feed tray, a pair of protruding portions are arranged such that each of the protruding portions is arranged on either side to prevent oblique movement of papers. One of the protruding portions is provided with a paper setting dial rotatably attached thereto. Marks indicating a paper size are displayed on a circumferential surface of the dial such that the size can be set by turning the dial in accordance with the size of the placed paper. The paper setting dial is attached on a side on which a user stands when placing the papers.

The invention includes a system for generating virtual images of proposed and designated areas on a patient's anatomy that are to be treated in a RFA procedure. The images include a size, shape, and location of lesion/ablation patterns. The virtual images include dynamic (developing) or static (developed) lesions selected for the RFA procedure. The images are provided on at least one user interface that superimposes or overlays the lesion pattern(s) on an image of a patient's anatomy that undergoes the procedure. The images can be used to accurately and efficiently conduct RFA procedures and to record the procedures with enhanced visual data to confirm treated tissue areas. The invention further includes a diagnostic method of generating images in preparation for a RFA procedure, and a method of conducting the RFA procedure in which measured parameters determine the size and shape of the ablated areas achieved in the procedure.

The invention discloses an individual soldier wearing type toxic gas and nuclear radiation detector, which comprises a wearing assembly, which comprises a buckle; a shell, which comprises an upper panel, a lower panel and a sealing component, wherein a toxic gas detection port, an oxygen concentration detection port, a nuclear ray detection port, a screen mounting port, a loudspeaker mounting portand a charging port sealing plug are reserved in the upper panel, and the lower panel is provided with the buckle; a circuit assembly, which comprises a PCB, wherein pin terminals of a toxic gas sensor, an oxygen sensor and a nuclear ray sensor are inserted into the PCB; a screen; a vibration audible and visual alarm; and a battery. According to the invention, real-time monitoring and danger alarm can be carried out on the environment where an individual soldier is located, and the system has the advantages of multiple detection types, light weight, small size and suitability for wearing anduse by the individual soldier.

A sintered bearing is produced by a production method comprising: compacting a metallic raw material powder into a bearing green compact; sintering the green compact into a sintered compact; forming a resin coating 20 over the entire surface of the sintered compact; removing the resin coating 20 on a bearing surface 14a of the sintered compact; and impregnating a lubricating fluid L through the bearing surface 14a from which the resin coating 20 is removed.

The invention relates to an indoor direct current earthing switch comprising a housing and a connecting terminal, an electric control module, a signal output module, an operating mechanism, a manual operation module, an electric operation module and static/moving contacts in the housing; the inner cavity of the housing is divided into front and rear cavities by a vertical plate; the static and moving contacts are installed in the rear cavity, the static and moving contacts are divided into four copper bars which are arranged symmetrically in upper and lower rows and protrude from the rear wallof the housing, one of the two copper bars in the upper row is connected to the negative pole of a direct current power supply system and the other is earthed PE, the two copper bars in the lower roware provided with a mechanical connection joint motion and are also electrically connected through a phase-to-phase short-circuit copper bar; in the front cavity, a wiring terminal block module is mounted on the top, the electrical control module and the signal output module are arranged in the middle in parallel, and the operating mechanism, the manual operation module and the electric operationmodule are arranged below; the operating mechanism module is used for controlling the two moving contacts and also is connected with the manual operation module, the electric operation module, the signal output module and the electric control module, respectively, and the electric operation module is also connected with the wiring terminal module. The indoor direct current earthing switch in theinvention is closed, compact in structure, small in size and reliable in performance.

The invention relates to a guide wire. The guide wire comprises a core shaft and a coating layer, wherein the coating layer coats the core shaft; a developing element is arranged near one end of the head of the guide wire; the developing element comprises a head developing area, a middle developing area and an end developing area which are sequentially arranged in the axial direction of the core shaft; the developing ability of the middle developing area is different from the developing abilities of the head developing area and end developing area; the lengths of the head developing area, middle developing area and end developing area are respectively within different preset length ranges, so as to compare the different developing areas and the developing images of surrounding calculus inthe operation process, thereby estimating the size of the calculus. The guide wire has the advantage that the size of the calculus can be simply and reliably estimated by a doctor in the operation process, so as to quickly and accurately select the most suitable operation parameters.

The invention relates to a lead-zinc ore dressing pulp heating device. The lead-zinc ore dressing pulp heating device comprises a pulp chamber inner wall, wherein a pipeline connector is arranged at the bottom of the pulp chamber inner wall in a communicating manner, the pipeline connector is communicated with a double-bin pipeline, at least two sets of output ports and input ports are formed in the pipeline connector, and the output ports and the input ports are communicated through heat distribution pipelines; and each heat distribution pipeline adopts a one-way backflow pipeline, the heat distribution pipelines are radially arranged along the bottom surface of the inner wall of a slurry chamber, the heat distribution pipelines are vertically arranged along the inner wall of the slurry chamber, and the upper ends of the heat distribution pipelines are connected and communicated through arc-shaped pipes or straight pipes.

There is provided a paper width detection apparatus including a plurality of lever members lined in parallel in a paper width direction of a recording paper roll, each lever member being rotatably arranged on a same center axis, a detecting unit for detecting a rotation state of the lever member, and a determination unit for determining a paper width of the recording paper roll based on a detection result. One lever member of the plurality of lever members rotates in a first rotating direction about the center axis by contacting an outer peripheral part of a holding unit for holding both ends of the recording paper roll, and another lever member positioned on an inner side in the paper width direction facing the recording paper roll than the lever member contacting the holding unit rotates in conjunction with the lever member contacting the outer peripheral part of the holding unit.

The atomizing nozzle is used for being matched with a spraying cavity of the nasal irrigator for use and comprises a liquid storage tank, a liquid tank cover, a liquid inlet and air inlet structure, an upper cover, an upper cover decorating part and a nozzle decorating part, a first connecting rubber plug is arranged at the bottom of the liquid storage tank, and a second connecting rubber plug is arranged at the bottom of the liquid tank cover; a plurality of first sealing rubber strips are arranged between the liquid storage tank and the liquid tank cover, the liquid inlet and air inlet structure is fixedly arranged on the upper side of the liquid tank cover, a liquid inlet pipe is arranged on one side of the liquid inlet and air inlet structure, the upper cover is fixedly connected with the liquid tank cover and arranged on the liquid inlet and air inlet structure in a sleeving mode, and the upper cover decorating part is fixedly connected with the upper cover and arranged in the middle of the upper cover in a sleeving mode. And the nozzle decorating part is fixedly connected with the upper cover and sleeves the top of the upper cover. According to the atomizing nozzle of the nasal irrigator, liquid is refined twice and then is mixed with gas ejected at a high speed to form uniform mist spray with controllable size and regular shape, and the cleaning stock solution and the cleaning waste solution are stored separately, so that the cleaning effect of the nasal cavity and the use experience of a user are greatly improved.