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52results about How to "Obvious advantage" patented technology

Method for preparing spherical silver powder

The invention provides a method for preparing spherical silver powder. The method comprises the following steps of (1) weighing silver nitrate, and adding deionized water to prepare a silver nitrate solution with the silver ion concentration of 50-100g/L; (2) adding an organic dispersing agent into the silver nitrate solution, and uniformly mixing, wherein the weight of the organic dispersing agent is equal to 1%-5% of the weight of the silver nitrate; adding (NH4)2SO4 (ammonium sulfate) solution with the concentration of 150-250g/L, and adjusting the pH (potential of hydrogen) value to 4-6.5, so as to obtain a first water solution; (3) weighing ascorbic acid, and preparing into a reducing solution with the ascorbic acid concentration of 70-90g/L; (4) adding the reducing solution into the first water solution, and mixing, wherein the ratio of usage amounts of the first water solution and the reducing solution is 0.8:1; controlling the reaction temperature at 15-35 DEG C, using a high-efficiency stirrer to stir, and reacting for 15-20min, so as to obtain reaction sediments; (5) using the deionized water to wash the sediments, filtering and drying the sediments to obtain the dry silver powder, and then loading the dry silver powder into a high-speed rotary vibration powder sifting machine to disperse, so as to obtain the silver powder with high tap density.
Owner:中国船舶重工集团公司第七一二研究所

Ultrasonic phased array detection imaging system

The invention provides an ultrasonic phased array detection imaging system, comprising a phased array ultrasonic probe, a transceiver circuit, a signal processing module, a main control module and a human-computer interaction module. The phased array ultrasonic probe is connected to the signal processing module through the transceiver circuit, the signal processing module is connected to the maincontrol module, and the main control module is connected to the human-computer interaction module. The signal processing module converts detection control information of the main control module into an electric pulse control signal, controls a transmitting circuit of the transceiver circuit, and then controls the ultrasonic array probe to excite a corresponding sound beam to an object to be inspected. The ultrasonic beam is reflected by the internal defect of the object, after a detection echo signal is detected by a receiving circuit, the collected detection echo signal is processed to obtaindetection echo data, and the detection echo data is transmitted back to the main control module. The system can flexibly adjust the scanning coverage by detecting the configuration of detection parameters, the defect parts are detected, and the detection speed and accuracy are ensured.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE +1

Vision-based pose stabilization control method of moving trolley

The invention discloses a vision-based pose stabilization control method of a moving trolley, which fully considers about a kinematics model and a dynamics model of a trolley and a camera model. The vision-based pose stabilization control method comprises the following steps of: respectively obtaining an initial image and an expected image at a starting pose position and an expected pose position through a camera, and obtaining an existing image in a movement process in real time; by utilizing an antipode geometric relation and a trilinear restrain relation among shot images, designing three independent ordered kinematics controllers based on Epipolar geometry and 1D trifocal tensor by utilizing a three-step conversion control policy; finally designing a dynamic conversion control rule by taking outputs of the kinematics controllers as the inputs of the kinematics controllers by utilizing an retrieval method so that the trolley quickly and stably reaches an expected pose along a shortest path. The invention solves problems in the traditional vision servo method that the dynamics characteristic of the trolley is not considered during pose stability control and slow servo speed is slow, and the vision-based pose stabilization control method is practical and can enable the trolley to quickly and stably reach the expected pose.
Owner:BEIJING UNIV OF CHEM TECH

Verification processing method for relaying protection setting value

InactiveCN102427222AConducive to making relevant auxiliary strategies in a timely mannerEasy to spot weak linksEmergency protective circuit arrangementsReal-time dataPower grid
The invention provides a verification processing method for a relaying protection setting value. The method comprises the following steps of: reading the real time data of a power grid from an energy management system, and forming a current system running mode; in the current system running mode, performing online verification calculation on a protection setting value of the power grid to judge whether protections which do not meet verification requirements exist or not; if the protections which do not meet the verification requirements exist, forming a set of the protections which do not meet the verification requirements; calculating the probabilities and results of failure to operate on command of each protection in the set, and multiplying corresponding probabilities and results to obtain values-at-risk of failure to operate on command of the protections; calculating the false operation probabilities and results of each protection in the set, and multiplying corresponding probabilities and results to obtain false operation values-at-risk of the protections; calculating the weighted sums of the values-at-risk of failure to operate on command and false operation values-at-risk of the protections to obtain total values-at-risk of the protections; and rearranging the total values-at-risk of all the protections in the set from lower values to higher values.
Owner:广西电网公司电力调度控制中心 +1

Gateway realization method for converting Ethernet data and digital video streaming

The invention provides a gateway realization method for converting Ethernet data and digital video streaming. The method comprises the following steps: format of network data and format of television video streaming data are mutually converted, namely, interconversion between IP packet and MPEG-2 TS streaming; an embedded processor adopts combination of double buffering configuration and single buffering configuration and configures a boot operation script so that the two configurations are converted from one to another; the double buffering configuration evens flow rate at an IP processing layer and processes each buffer area by a plurality of threads; the single buffering configuration adopts a mode of data buffering under a driving procedure state; an upper layer application program of an embedded system adopts a self-adaptive adjacency list method to automatically acquire the adjacency list in respective network segment and send the adjacency list to an opposite terminal to be converted; IP packet packaging thread and TS unlocking thread realize interconversion from IP format to TS format; and TS receiving thread and TS sending thread execute a complete reverse function in the embedded system. The two sides of wireless equipment can use IP address of the same net segment or the different network segments to work and realize long-distance bidirectional transmission or long-distance unidirectional transmission.
Owner:BEIJING UNIV OF CHEM TECH

Tibetan historical document text line segmentation method based on baseline estimation

The invention relates to a Tibetan historical document text line segmentation method. The method comprises the steps that the image of the left part of a Tibetan historical document is extracted; Tibetan vowel sound nodes and certain prominent strokes are removed; the starting position information of the baselines of the Tibetan text lines and the number of text lines are acquired; according to the starting position of the baselines, the baselines are established from left to right; during the establishment of the baselines, the baselines needs to be dynamically adjusted according to the pixelvalues of the surrounding points; the estimated baselines are used, and a communication area analysis method is used to determine the position of an adhesion area from two baselines for segmentation;and finally text lines are separated. According to the invention, the Tibetan historical document text line segmentation method based on baseline estimation is more suitable for the segmentation ofthe text lines of the Tibetan historical document, and has more segmentation precision than a traditional technology based on projection segmentation; and compared with a method based on projection segmentation, the method has the advantage that the segmented text lines are more correct.
Owner:BEIJING UNIV OF TECH

Tomato genetic transformation method

The present invention relates to a tomato genetic transformation method, belongs to the technical field of genetic engineering, and specifically discloses a whole tomato seed infection method. The method comprises the following steps: measuring a physiological imbibition curve of mature tomato seeds; culturing target gene-containing agrobacterium rhizogenes; transforming disinfected and sterilized tomato seeds into the agrobacterium rhizogenes liquid with an OD600 value of 0.8-1.3 through combining the physiological imbibition curve of the tomato seeds to carry out oscillation infection for 7-9 h; carrying out co-culture for 3 days under a dark condition and at a temperature of 25 DEG C; screening a resistant plant; carrying out rooting and cultivation on the resistant plant; and carrying out plant transforming, seedling exercising, transplantation and the like. According to the present invention, agrobacterium rhizogenes liquid infection is adopted at the tomato seed imbibition stage so as to substantially improve transformation efficiency; pressure culture medium screening is adopted to screen, such that an experimental period is shortened by 2-3 months, an experimental process is simplified, and identification workload after transformation is reduced; and important significances are provided for theoretical researches and genetic breeding practices of tomato genetic engineering.
Owner:JILIN NORMAL UNIV

Natural drug for treating human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS)

InactiveCN102895399AObvious advantageGood effectAntiviralsPlant ingredientsCentipedeClerodendrum cyrtophyllum
The invention discloses an all-natural drug for treating a human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) and a preparation method for the all-natural drug. The all-natural drug is a compound preparation prepared through extracting effective active components from marine organisms and various animal and vegetable medicinal materials. The formulation of the all-natural drug comprises the following components in weight percentage: 10 percent of American ginseng, 10 percent of Astragalus mongholicus, 10 percent of Angelica sinensis, 10 percent of Salvia miltiorrhiza, 10 percent of radix rehmanniae, 5 percent of rheum officinale, 7 percent of goldthread root, 7 percent of Clerodendrum cyrtophyllum, 8 percent of zaocys dhumnade, 8 percent of Gekko japonicus, 7 percent of Chinese Polyphaga, 1 percent of centipede, 1 percent of sea dragon, 1 percent of sea horse and the balance marine algae. On the basis of the new theory of ZhengXue medicine originated by the first applicant of the invention, the formulation of the all-natural drug disclosed by the invention is improved through trial and error. Through pharmacological study and clinical use, the curative effect of the all-natural drug is remarkable. The all-natural drug not only can be used for effectively restraining HIV replication but also can be used for reconstructing an immune system, correcting immunodeficiency and recovering an immunologic function, and host cells infected by the HIV are effectively targeted, so that the viral load is greatly lowered to reach a level that the HIV cannot be checked out, and moreover, the viral load does return after drug withdrawal. The body function can be recovered, and the syndrome can be eliminated. Toxic and side effects do not exist. AIDS patients can be totally recovered.
Owner:莫以贤 +1

Mobile terminal device support

The present invention discloses a mobile terminal device support. The mobile terminal device support includes a body, a handheld component and a first connecting piece. The body is internally provided with a power supply module, a power management module, and a Bluetooth intelligent card module for connecting an external device in an induction manner, wherein the power supply module, the power management module and the Bluetooth intelligent card module are connected sequentially. The body is connected with the mobile terminal device by using the first connecting piece. The handheld component includes a second connecting piece and a handheld member. The handheld member is connected with the body through the second connecting piece. According to the mobile terminal device support, the Bluetooth intelligent card module is added, so that financial payment applications and door entrance identification, staff punch, campus card applications can be integrated; the body and the mobile terminal device are bonded, so that the card is difficult to loss, the mobile terminal device can be combined by using a Bluetooth interface so as to operate the intelligent card; and due to introduction of the handheld component, when the user holds the mobile terminal device, the mobile terminal device does not fall onto the ground to be damaged, and when the mobile terminal device support is idle, the angle of the support is adjusted and used as a device support.
Owner:鲸通智能科技有限公司
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