31results about How to "Effective masking" patented technology

The invention discloses an equipment and facility safety inspection intelligent patrolling operation system and an application method thereof. The system consists of a handheld wireless interconnection security patrolling device, a radio frequency identification (RFID) label card reader module and a central server, wherein a passive RFID label is distributed on a security facility in a closed space; the label number and three-dimensional (3D) virtual digital modeling data of the closed space are input into a computer system and/or a server by utilizing a global information system (GIS); when an inspector enters the closed space to inspect by carrying the handheld wireless interconnection security patrolling device; and identification codes stored in the passive RFID label, use informationof related security facility and equipment and location information thereof, and to-be-collected data which are collected by the security equipment through manual and automatic wireless sensing and collected by manual artificial detection are uploaded to the central server or transmitted to the computer system by the handheld wireless interconnection security patrolling device automatically, and are determined by the central server or the computer system. The system prompts and monitors the inspectors to maintain the security facility and equipment in time, so that the safety, effectiveness and reliability of the security facility and equipment can be improved.

The invention relates to the field of a radio frequency power device, and discloses a radio frequency SOI LDMOS device with close body contact. The device comprises bottom layer silicon, an embedding oxidation layer, top layer silicon, a P region an N region, a gate oxidation layer, a polysilicon gate layer, a gate poly-silicide layer, a gate electrode, a silicon nitride side wall, an N drift region, a drain region, a drain region silicide layer, a drain electrode, a source region, a body contact region, a body region, a source region silicide layer and a source electrode. The radio frequency LDMOS device is manufactured on an SOI substrate, and forms the close body contact which is in short circuit with the source region by utilizing a heavily doped region in the same form as the P region; the source/body, a drain/body and the gate and the electrodes are interconnected by the silicide; a plurality of gate bars are connected in parallel in the forked mode so as to improve the driving capability of the device; a method for adjustment, back-gate injection, N region injection and N drift region injection, which is compatible with the CMOS process, is designed; and a method for hiding the silicide in the N drift region, which is compatible with the CMOS process, is designed.

The invention provides a method for measuring nickel content in low alloy steel by spectrophotometry. The method comprises the steps of: (1) dissolving a sample; (2) adding a proper amount of perchloric acid till smoking, and adding distilled water so as to obtain a solution a: (3) adding potassium sodium tartrate and ammonium citrate into the solution to serve as dual masking agents; (4) adding a strong base, then adding ammonium persulfate as an oxidizing agent, and then adding a dimethylglyoxime developer so as to react with nickel to generate a red chelate; (5) conducting measuring: zeroing the solution obtained in step (4) with a reference solution, carrying out color comparison at a position of 530nm on a spectrophotometer, thus measuring absorbance A1; (6) calculating the nickel content according to the absorbance A1. By applying dual masking agents, the method of the invention substantially improves the accuracy and precision of a measured result on the basis of guaranteeing rapid measuring.

The invention discloses a radio frequency silicon on insulator(SOI) laterally diffused metal oxide semiconductor (LDMOS) device provided with a low potential barrier body lead-out, which comprises a bottom layer silicon, a concealed oxide layer, a top layer silicon, a P-region, a N-region, a gate oxide layer, a polysilicon gate layer, a gate polycrystalline silicon carbide layer, a gate electrode, a side wall, a N-drift region, a drain region, a drain region silicate layer, a leakage electrode, a source region, a low potential barrier body lead-out region, a body region, a source region silicide layer, and a source electrode. In the invention, the radio frequency LDMOS device is manufactured on an SOI substrate, and a low potential barrier body lead-out is in a short circuit with the source region is formed by utilizing a heavily doped region homotypic with the P- region; the source/body, leakage/ body as well as a gate is interconnected with each electrode by utilizing a silicide; a plurality of grate bars are in interdigital type parallel connection so as to enlarge the driving power of the device; and the invention provides a method for rectifying, back gate injection, N-region injection as well as N-drift region injection compatible with a complementary metal-oxide-semiconductor (CMOS) technology, as well as a N-drift region silicide conceal method compatible with the CMOS technology.

The invention provides a procalcitonin (PCT) determination kit. The kit contains a reagent R1 and a reagent R2, wherein the reagent R1 is prepared from the following components: a piperazine-1, 4-diethylsulfonic acid (PIPES) buffer solution, NaCl, MgCl2, chondroitin sulfate, hyaluronic acid, a surfactant and a preservative. And the reagent R2 is prepared from piperazine-1, 4-diethylsulfonic acid (PIPES) buffer solution, goat anti-human PCT antibody coated latex particles, a suspending aid, a stabilizer and a preservative. The invention further provides a preparation method and application of the kit, the kit can effectively avoid interference of chyle particles, latex particles of different specifications, novel surfactants and different protective agents and suspending agents are adoptedat the same time, and the kit is a liquid kit which is high in stability, high in sensitivity, good in repeatability and low in cost.

The invention provides a method for detecting a content of heavy metals, which belongs to the technical field of the detection of metal ions. The method comprises the following steps: (1) preparing asolution to be detected: preparing a heavy metal sample to be detected into an aqueous solution, adding an acidic solution and a potassium iodide solution, and obtaining the solution to be detected; (2) detecting the solution to be detected: moving the solution to be detected, dropwise adding the solution to be detected onto test paper, developing the color for 50s to 100s, wherein the test papercontains dye; and (3) judging a detection result: visually comparing the color developing test paper and a colourimetric card, and determining a concentration of the heavy metal. By adopting the method for detecting the heavy metals, a rapid detection effect can be achieved, the detection efficiency is increased, and the field operation is also facilitated.

The invention relates to the technical field of vomitus collection for the gastroenterology department, in particular to a vomitus collection device for nursing of the gastroenterology department. Thedevice comprises a base, a storage battery is installed in an inner cavity of the base, and a water storage tank is installed at the upper end of the base; a water injection pipe is connected to theleft side of the water storage tank, a sluice valve is arranged at the outer side of the water injection pipe, and L-shaped handles are symmetrically connected to the upper end of the water storage tank; a control switch is installed at the outer side of one L-shaped handle, a water pump is installed at the upper end of the water storage tank, and the left end of the water pump penetrates throughthe water tank through a connection pipe and extends into an inner cavity of the water storage tank; a collection tank is installed at the upper end of the base, and a tank door is movably connected to the outer side of the collection tank. The vomitus collection device is reasonable in structural design, vomituses of a patient are quickly and conveniently collected and removed, abnormal odor is effectively covered up, the vomituses are conveniently and concentratedly treated, and the device is convenient to use.

The invention relates to the field of radio frequency power devices, and discloses a radio frequency SOI LDMOS device with H-shaped gate. The device comprises bottom layer silicon, an embedding oxide layer, top layer silicon, a P region, an N region, an H-shaped gate oxide layer, an H-shaped polysilicon gate layer, an H-shaped gate poly-silicide layer, a gate electrode, a silicon nitride side wall, an N drift region, a drain region, a drain region silicide layer, a drain electrode, a source region, a body lead-out region, a source region silicide layer and a source electrode. The radio frequency LDMOS device is manufactured on an SOI substrate, and forms the body lead-out which is in short circuit with the source region by utilizing a heavily doped region in the same form as the P region; the source/body, a drain/body and the gate and the corresponding electrodes are interconnected by the silicide; and a plurality of gate bars are connected in parallel in the forked mode so as to improve the driving capability of the device. Simultaneously, the invention discloses a method for adjustment, back-gate injection, N region injection and N drift region injection, which is compatible with the CMOS process and a method for hiding the silicide in the N drift region, which is compatible with the CMOS process.

Techniques herein provide computer-implemented methods to dynamically mask audio-based data transfer. A computing device encodes data to be transferred into an audio file that produces a sound unpleasant to the human ear. The computing device determines frequency points and amplitude for the encoded audio file, and creates a masking sound file based on the determined frequency points and amplitude. The masking sound file may comprise a masking sound that is pleasant to the human ear. The computing device plays the encoded audio file and the masking sound file. In an example, the computing device combines the encoded audio file and the masking sound file into a single sound file and plays single sound file. In another example, the computing device plays the encoded audio file and the masking sound file as two separate sound files simultaneously.

The invention discloses a novel method for testing zinc chloride in a potassium chloride galvanization solution. The novel method comprises the following steps: under a condition that the pH value is9.2, shielding a calcium impurity and an aluminum impurity in a potassium chloride galvanization solution by using sodium fluoride, shielding a copper impurity by using sodium dimethylaminodithioformate, shielding an iron impurity by using ascorbic acid, taking eriochrome black T as an indicator, and carrying out titration on zinc chloride by using an EDTA (Ethylene Diamine Tetraacetic Acid) standard solution. By adopting the novel method, interference of the calcium impurity upon zinc chloride testing can be effectively eliminated, and the problem that a conventional analysis method for testing zinc chloride has a high analysis result can be solved.

A medical device such as a stent (10) or medical balloon (40) is at least partially coated with a saturated carboxylic acid layer in order to enhance biocompatibility, reduce thrombogenesis and increase endothelialisation. The coating is preferably of citric acid in non-crosslinked form and preferably non-porous so as to mask the underlying structure of the medical device. The acid coating forms an outer surface of at least a part of the medical device, that is has no other layer or material overlying it, save for in some embodiments a partial coating of a bioactive material.

The invention relates to a traditional Chinese medicinal composition for treating rheumatic arthromyodynia and a preparation method and application thereof. The traditional Chinese medicinal composition is prepared from the following medicinal raw materials in parts by weight: 10-15 parts of radix achyranthis bidentatae, 10-15 parts of notopterygium roots, 12-18 parts of epimedium, 10-15 parts ofteasel, 12-18 parts of lycopodium clavatum, 10-15 parts of dark plums, 8-12 parts of hematoxylon, 10-15 parts of kadsura pepper stems, 10-15 parts of ephedra, 10-15 parts of cassia twigs, 10-15 partsof safflowers, 10-15 parts of acanthopanax, 10-15 parts of honeysuckles, 10-15 parts of earthworms, 10-15 parts of parasitic loranthus, 10-15 parts of liquorice, 10-15 parts of anisetree bark, 10-15 parts of prepared myrrh, 10-15 parts of rhizoma drynariae (burned) and 10-15 parts of red ginseng. The traditional Chinese medicinal composition is reasonable in compatibility and simple in formulation, has the effects of expelling wind, removing cold, dredging tendons, promoting blood circulation, dredging collaterals and stopping pain, is applicable to treatment on scapulohumeral periarthritis, cervical spondylosis, waist and leg pain, muscle and joint pain, unfavorable flexion and extension, rheumatic arthritis and rheumatoid arthritis and patients with former symptoms, and is safe and freeof toxic and/or side effects.

The invention provides a tinnitus treatment sound generation method based on natural sound masking, sound data based on natural sound can be generated according to individual tinnitus sound, the sound data is more targeted, the tinnitus sound of each individual can be effectively masked, and the use experience of a user can be improved. According to the technical scheme, natural sound is processed to generate tinnitus treatment sound based on frequency characteristics (center frequency and bandwidth) and loudness of tinnitus sound of each patient. The center frequency and the bandwidth of the masking sound are obtained based on the tinnitus frequency characteristics of the patient, and it is ensured that the tinnitus treatment sound can mask the tinnitus sound within the effective frequency and width range. The masking intensity is obtained based on the tinnitus loudness of the patient, it is ensured that the intensity of the treatment sound can effectively mask the intensity of the tinnitus sound, and finally the tinnitus treatment sound generated based on natural sound can effectively mask the tinnitus sound.

The invention relates to a peroxyacetic acid stabilizing synergistic agent for bleaching flax fibers. The prior stabilizers can not meet the requirements of industrial production for stabilizing peroxyacetic acid and have higher cost, so the peroxyacetic acid can not get wide application in the bleaching industry. The stabilizing synergistic agent comprises the following components: 3-10 percent of sodium silicate, 0-2 percent of sodium stannate, 2-5 percent of sodium pyrophosphate, 0.1-0.5 percent of ammonium vanadate which is used as a peroxyacetic acid oxidation catalyst, and the balance of corn starch oxydrolysis products. In the peroxyacetic acid stabilizing synergistic agent, the corn starch oxydrolysis products are served as the main component of the stabilizer, the peroxyacetic acid is stabilized through the action of complexing metal ions, dispersing solid pollutants and stabilizing the pH value of a bleaching system; the sodium silicate, the sodium stannate, the sodium pyrophosphate, and the like are complemented to form a compound stabilizer; and the ammonium vanadate is used as the peroxyacetic acid oxidation catalyst to form the peroxyacetic acid stabilizing synergistic agent. The product can be used as the peroxyacetic acid stabilizing synergistic agent during bleaching flax fibers.

The invention discloses an individual safety locating and guiding operating system and an application method thereof. The individual safety locating and guiding operating system comprises an individual locating and guiding identifying instrument, a wireless communication module and a computer system, wherein the individual locating and guiding identifying instrument comprises a RFID (Radio Frequency Identification Device) reader/writer module corresponding to passive RFID labels read only or capable of being read or written, a main controller and a follow-up wireless communication transceiving module. The application method comprises the following steps of: distributing the passive RFID labels on wall bodies or safety facilities in a closed space in advance, entering label numbers and 3D (Three-Dimensional) virtual digital modeling data of the closed space into the computer system and/or a server by using a GIS (Geographic Information System), automatically reading the coordinate position information of the nearby labels by using the individual locating and guiding identifying instrument after rescue workers carrying the individual locating and guiding identifying instrument enter the closed space, sending the coordinate position information to the computer system and/or the server in a wireless way, and reporting the information to the rescue workers for prompting. The individual safety locating and guiding operating system disclosed by the invention has the functions of positioning and guiding as well as identifying the safety facilities in the closed space, so that the rescue efficiency is improved, and the life and property losses can be decreased furthest.