32results about How to "Relatively stable" patented technology

The invention discloses a positioning method which comprises the following steps: receiving a positioning request transmitted by a mobile node, wherein the positioning request contains signal intensity time sequence data of the mobile node, and the signal intensity time sequence data is data for representing the change of wireless signal intensity along with time when the mobile node moves; inquiring signal intensity time sequence target data matched with the data of the mobile node in a pre-established signal intensity time sequence map, wherein the signal intensity time sequence map is used for recording the signal intensity time sequence data of the detected mobile node on different road sections; determining positioning data corresponding to the target data as positioning data of the mobile node. According to the positioning method provided by the invention, on the premise of ensuring the mobile positioning accuracy, the energy consumption required for positioning can be reduced. The invention further discloses a positioning device and a system.

The invention provides a catalyst for catalytically oxidizing low-concentration methane. The catalyst is composed of octahedral CeO2 particles and Pd nano particles supported on the surfaces of the octahedral CeO2 particles. The catalyst for catalytically oxidizing the low-concentration methane provided by the invention is a Pd-based octahedral CeO2 catalyst, the Pd nano particles have a high dispersion degree and good relative stability on the surfaces of the carrier octahedral CeO2 particles, the catalyst has high catalytic oxidation efficiency of the low-concentration methane and good relative thermal stability, temperature required for complete conversion of the low-concentration methane is low, catalytic reaction products are H2O and CO2 which are environmentally-friendly products, and the catalyst has great application value in the field of catalytic oxidation of the low-concentration methane.

The invention provides a plating stitch weaving technology, a weaving mechanism and a ground yarn floating thread plating stitch. According to the laying-in requirement, knitting needles are divided into the first knitting needles and the second knitting needles; the first knitting needles continue to walk forwards and descend, so that the first knitting needles are cushioned into a veil to form asealed sleeve ring; the second knitting needles ascend to be retracted from the ring, walk forwards to the upper portion of the ground yarn and then gradually descend, so that the second knitting needles are cushioned into the ground yarn and the veil to form a sealed sleeve ring; the position of the sealed sleeve ring formed by the second knitting needles is behind the position of the sealed sleeve ring formed by the first knitting needles. By setting different knitting needle tracks, the position of the sealed sleeve ring formed by the knitting needles only cushioned into the veil is separated from the position of the sealed sleeve ring formed by the knitting needles cushioned into the ground yarn and the veil, the heads of the knitting needles do not touch the ground yarn, the relativerelationship between the veil and the ground yarn remains stable, dislocation is not easy to occur, and the 'yarn floating' problem of the ground yarn floating thread plating stitch is greatly improved.

The invention discloses novel diazo benzothiapyrone photosensitive protecting groups and a synthesis method thereof. A compound disclosed by the invention can be used for protecting a phosphoric acid functional group compound. The novel benzothiapyrone photosensitive protecting groups disclosed by the invention are efficient and rapid in photo-dissociation reaction, have good relative stability under daily illumination conditions, and also have unique photosensitive structures which have response to light and can also be used for releasing potential fluorescent groups. According to the novel diazo benzothiapyrone photosensitive protecting groups disclosed by the invention, tracking and monitoring of a light control process can be facilitated, and the 'controllability' and 'visibility' of release can be achieved; and a novel research method for performing quantitative release and accumulation degree research under cell biological environments can be provided.

Embodiments of the invention provide an uplink access method, device and system. The uplink access method comprises setting the reservation resources and sending the reservation resource notification information to at least one terminal; receiving the reservation signals transmitted by at least one terminal via the reservation resources; and sending the uplink access resource allocation message to the at least one terminal according to the reservation signals, so that the at least one terminal performs uplink access by means of the uplink access resources corresponding to the access resource allocation message. According to the uplink access method, device and system of the invention, a head-end device allocates the reservation resources at first and then allocates the uplink access resources to the terminal only after the reservation signals transmitted by the terminal is received, thereby preventing unnecessary resource waste which may be caused by the fact that many uplink access resources are always kept for uplink detection.

The invention discloses a blood collector which comprises a blood collecting joint, a blood sucking needle, an air sucking needle and a blood discharge needle. The blood sucking needle is arranged on a blood sucking connector of the blood collecting joint. An installation hole is formed in a blood discharge and air sucking connector. An air discharge hole is formed in an air discharge connector. The blood discharge needle penetrates through the air sucking needle to be communicated with a blood passing cavity. An air passing channel is formed between the air sucking needle and the blood discharge needle. A holding ring is arranged at the port of the air passing channel and provided with a ventilating notch so that the air passing channel can keep being communicated with the outside world. The air sucking needle and the blood discharge needle are coaxially arranged, so only an incision is formed when the blood collector is inserted in a blood collecting vessel; in the transition stage from the blood discharge needle to the air sucking needle, the squeezing distance on the periphery of a sealing opening of the blood collecting vessel is balanced. Operation convenience can be achieved, a needle is effectively prevented from being inserted into an inner wall of the blood collecting vessel, the stress conditions are improved when the blood collector is inserted in the sealing opening of the blood collecting vessel, contamination can be effectively avoided, and safety and reliability are remarkably improved. The invention further provides a blood collecting instrument and method using the blood collector.

Provided herein is an oral liquid suspension that includes topiramate, as well as methods of medical treatment that include orally administering the oral liquid suspension.

The invention discloses a selection method of brassica napus with glyphosate resistance and high linolenic acid content. The selection method of the brassica napus with the glyphosate resistance and the high linolenic acid content comprises the following steps: hybridizing brassica napus with glyphosate resistance with brassica napus with high linolenic acid content, and performing double screening for the glyphosate resistance and the high linolenic acid content on a large number of derived individual plants of progenies, namely selecting glyphosate-resistant strains with high linolenic acidcontent; and then, allowing several generations of selection so as to make related genotypes homozygous, so that the glyphosate resistance is consistent and stable among individual plants of the samefamily and the linolenic acid contents are stably higher than 15%, thereby obtaining the brassica napus with the glyphosate resistance and the high linolenic acid content. The brassica napus with thehigh linolenic acid content is adaptive to chemical weeding in virtue of the glyphosate resistance, so that lightened and simplified cultivation requirements can be adapted with cultivation benefits increased; and thus, immeasurable market application prospects are broadened.

The present invention relates to an oral liquid suspension that includes lamotrigine and methods of medical treatment that include administering the oral liquid suspension. The oral liquid suspension has desirable physicochemical properties and technical attributes. The oral liquid suspension is useful in patients having difficulties in swallowing tablets and provide medical practitioners with additional options for dose titration.

The invention relates to the technical field of communication, in particular to a TOPK-based multi-channel sound source effective signal screening system, which comprises an input unit used for inputting mixed sound formed by N channels of voice and N channels of background sound; a pre-judging unit used for pre-judging each path of voice one by one by adopting a VAD algorithm; a grading unit usedfor sequentially dividing the voice signals with the VAD value of 1 into 1-10 grades by adopting an AMDF algorithm and assigning values; a screening unit used for screening M paths of strongest signals for the N paths of cache signals at each moment according to a set cache amount; an error correction unit used for complementing the screened M paths of strongest signals into lost front-end voicesignals due to time delay by using signal correlation and adopting an FEC algorithm; and an output module used for outputting the supplemented M paths of strongest signals. According to the method, aVAD algorithm, an AMDF algorithm and an FEC algorithm are combined, and the technical problem that effective signals cannot be separated and screened from mixed sound formed by multiple paths of voiceand multiple paths of background sound in the prior art is solved.

The invention discloses a surface modified electrode, a preparation method thereof, and a method for treating wastewater by electrolysis of a motor. A novel electrochemical wastewater treatment method is successfully constructed by combining a ruthenium-iridium-titanium anode and a surface-modified iron electrode material, COD and total nitrogen in various types of wastewater can be efficiently removed, grease in the wastewater can also be removed at the same time, and the application range is wide. The two electrode materials (the ruthenium-iridium-titanium anode and the surface-modified iron electrode) have relatively stable properties, are environment-friendly, are not easy to cause secondary pollution, have certain circularity, and are very worthy of popularization.

The invention discloses a preparation technique of stable non-stoichiometry nanometer cerium dioxide particles, which includes steps of 1), grinding inorganic salt of trivalent cerium until the graindiameter is less than 20 mum, and removing crystal water to obtain A product; 2), applying a hot plasma generator to stimulate the activating gas to be hot plasma flame, and carrying the A product toa hot plasma reactor by carrier gas; controlling the power of the hot plasma reactor to 10-30kW, and completely reacting the A product in the hot plasma flame to obtain B product; 3), conveying the Bproduct to a collector along with an air flow to collect and obtain the non-stoichiometry nanometer cerium dioxide particles. The non-stoichiometry nanometer cerium dioxide particles prepared by the invention are featured by good stability and high oxygen vacancy content.

The invention discloses a cleaned blood collection instrument and a cleaned blood collection method. The specific job is mainly completed through a blood collector, and the blood collector comprises a blood collecting connector, a blood drawing needle, a suction needle and a blood discharging needle; a blood drawing port of the blood collecting connector is provided with the blood drawing needle, a blood discharging and suction port is provided with installation holes, and an exhaust port is provided with an exhaust hole; a blood discharging and suction needle is arranged in the installation holes and comprises a blood discharging needle hole and an exhaust needle hole which are communicated with a blood cavity, and the blood discharging and suction needle is further provided with a vent hole communicated with the exhaust needle hole and the exhaust hole; the blood discharging and suction needle, a blood via cavity and the blood drawing needle are on the same straight line; the blood via cavity is formed in the blood drawing port and shaped like a cylinder or a circular cone. The probability of inserting the needle into the inner wall of a blood collection tube can be effectively decreased. The exhaust and blood discharging functions are integrated on the same needle, and the relative stability is good; an elastic hemostasia cover can cover the needle with the exhaust function and the needle with the blood discharging function direction, contamination is effectively prevented, and the safety and reliability can be significantly improved.

The invention discloses a self-adaptive automobile fuel tank outer cover identification method based on region contrast difference. The method comprises the following steps: carrying out self-adaptive histogram equalization on an initial image to obtain an outer cover region contrast-enhanced image; performing high-order Gaussian blur on the image to expand a highlight area; carrying out difference on the image before and after blurring to obtain a color feature image; graying the color feature image and then carrying out threshold segmentation to obtain a feature region image; obtaining circumscribed rectangles of all the regions, and performing preliminary screening on three basic conditions, namely areas, length-width ratios and region positions, of all the regions based on morphological characteristics of the shape of the outer cover; performing secondary screening on suspected areas obtained by preliminary screening by adopting different types of outer cover contour judgment methods based on outer cover morphological characteristics; and adaptive identification of outer cover areas of different types and sizes is realized based on generality of morphological characteristics. The method has the advantages of high adaptability, high environmental stability, high recognition precision and the like.

The deformable multifunctional road guardrail comprises a deformable road guardrail body, guardrail columns A are arranged on the deformable road guardrail body, rolling balls are arranged on the portions, close to the two ends and the center, of the inner walls of the guardrail columns A, and connecting columns at the bottom ends of the guardrail columns A and fixing bases are installed in a matched mode; a fixing pin is arranged among the guardrail column A, the connecting column and the fixing base, the two ends of the connecting column are arc-shaped, bearing rings are arranged on the outer walls of connecting shafts symmetrically arranged on the side walls of the two sides, close to the two ends, of the connecting column, a telescopic guardrail rod is arranged in the guardrail column A, ball limiting grooves are formed in the outer wall of the telescopic guardrail rod at equal angles, and a column top connector is arranged at the top end of the telescopic guardrail rod. The deformable road guardrail not only has a protection function, but also can be bent into a rescue ladder stand at the edge of a river side or a long embankment, so that the function of the guardrail is greatly improved.

The invention discloses a blood collector. The blood collector comprises a blood collecting connector, a blood drawing needle, an air exhausting needle and a blood discharging needle, wherein the blood drawing needle is arranged on a blood drawing connector of the blood collecting connector, a mounting hole is formed in a blood discharging air exhausting connector, and an air vent hole is formed in an air exhausting connector; the blood discharging needle penetrates through the air exhausting needle and communicates with a blood passing cavity; the inner diameter of the air exhausting needle is greater than the outer diameter of the blood discharging needle, thus a ventilation channel communicating with the air vent hole is formed, and adhering points are arranged at the opening of the ventilation channel. The air exhausting needle and the blood discharging needle are coaxially arranged, so that only one opening is formed when the air exhausting needle and the blood discharging needle are inserted into a blood collecting tube, meanwhile, in the transition stage from the blood discharging needle to the air exhausting needle, the extrusion distances for the periphery of the sealed opening of the blood collecting tube are balanced, therefore, the operation inconvenience is solved, the phenomenon that the syringe needle is inserted into the inner wall of the blood collecting tube is effectively prevented, moreover, the stressing condition generated when the sealed opening of the blood collecting tube is inserted is also improved, therefore, the pollution is effectively prevented, and the safety and reliability are obviously improved. The invention further provides a blood collecting instrument and a blood collecting method adopting the blood collector.