Smelting method of high level detecting steel

The invention relates to a method for smelting high-grade flaw detection steel. The method comprises the steps of electric furnace melting, refining, vacuum treatment, casting and rolling, wherein under the condition of electric furnace melting, molten steel is subjected to preliminary deoxidation until the oxygen content is between 100 and 300 ppm, and the ladle temperature is controlled to be between 1,560 and 1,650 DEG C; under the condition of refining, an aluminum wire is fed according to the refining oxygen determination value, a grain refining agent is added into the molten steel, and argon blowing is performed for at least 3 minutes; the molten steel is refined until the oxygen content is between 20 and 30 ppm and the S content is not more than 0.015 percent, the temperature is controlled to be between 1,650 and 1,660 DEG C, and the molten steel is subjected to slag-off treatment; vacuum pre-molten slag is added into a ladle before vacuum treatment, and maintained for at least 20 ...

Method and device for processing data by tree view

The invention discloses a method and a device for processing data by a tree view and belongs to the technical field of computers. The method comprises the following steps that: a view controller receives a message and allocates the message to a corresponding controller according to the type of the message; and the controller processes the message and processes a next message of the same type after the message is processed. The invention further provides the device for processing data by the tree view. Various monitors registered on a tree generate different node requests, an editor generates a response, all the requests and the response are forwarded by the view controller, and the requests and the response are processed in a specific controller to be decoupled and asynchronized, so that the tree view has excellent expandability and asynchronous delayed load is met.

Flex-based collection frame

The invention discloses a Flex-based collection frame, and belongs to the technical field of computers. The collection frame comprises a collection frame system for providing general data operation and an iterator. A list iterator which can ensure a mapping sequence is provided by the collection frame system, so that the function of the Flex-based collection frame is increased; and the collection frame system can provide the general data operation and is easy to expand.

Jet ink with nanometer ultramicro solid pigment and its making method

The ink consists of carbon black, luminous pale purple, acetamide, glycol, formamide, water and alkali. Its preparation process includes the steps of acidification of carbon black, adding luminous pale purple, water, acetamide, alkali and kathon or other preservative, grinding in nanometer pulverizer, and adding glycol and formamide. The present invention has the features of water soaking resistance, fastness, no jam of sprayer and good low-temperature property. It may be used widely in various jet printers and other places.

Orthonormal discrete frequency coding design method possessing relative low self correlation performance

The present invention belongs to the field of radar communication technique, especially relates to method for design MIMO radar orthogonal discrete frequency code. The present invention employs linearity frequency modulation disperse frequency code (DFCW_LFM) and location relation of grating lobe and zero point of autocorrelation function of DFCW_LFM (shown in formula A) to determine relation of parameter N of DFCW_LFM signal with lower autocorrelation function and B/delta f to fall ASP. After gaining lower ASP, produce randomly K group original frequency code serial with lower autocorrelation, namely original group S0, and searching by improved genetic algorithm (MGA) provided by present invention, and the optimizing orthogonal discrete DFCW_LFM code which has lower autocorrelation and mutual-correlation compared to present DFCW_FF code. The orthogonal discrete DFCW_LFM code of present invention makes the MIMO radar has better detecting capability.

Oral instant membrane of risperidone and preparation method thereof

The invention relates to an oral instant membrane of risperidone and a preparation method thereof, thereby being used for improving the using performance of the risperidone. The technical scheme is as follows: the instant membrane comprises 2-60 parts by weight of risperidone, 25-98 parts by weight of water-soluble pharmaceutical polymer excipients, additives and 0.1-25 parts by weight of water. The oral instant membrane solves the problems that the existing risperidone is clinically difficult to swallow, is not applicable to children and elderly patients for administration and can not be conveniently taken under the situation of having no water. The oral instant membrane can be dissolved on the tongue, the hidden trouble of choking can not be happened no matter how young a baby is, the active ingredients can be absorbed sublingually and absorbed by buccal mucosa, and the onset of action is more rapid in comparison with orally disintegrating tablets. In addition, the oral instant membrane ...

Compensation process for inhibiting radar echo signal range migration

The invention relates to a radar echo signal motion inhibition and compensation method, belonging to radar technology domain, comprising: constructing the compensation matrix B and obtaining the two dimensional matrix A by arranging the sample data according to time; processing the matrix V obtained by multiplying A and B using the prestored weight vector L to obtain matrix D to realize pulse compression; each line data of the matrix D being subjected to slow time accumulating to obtain matrix E; multiplying the matrix E with the adjoint matrix B* of the compensation matrix B to obtain the final signal matrix F. The radar echo signal motion inhibition and compensation method is controlled based on match right and can effectively compensate the motion based on the rought speed range and effectively increase the detection probability of the moving object and the parameter estimation precision. Because the interpolation does not needed, the extra signal-noise ratio loss can not be induced ...

Bioelectrically therapeutic apparatus and its application

A bioelectric therapeutic apparatus for treating primary hypertension and the hemiplegia caused by encephalorrhagia and cerebral thrombosis with history within 3 months features that said therapeuticapparatus is connected between any two acupoints and the bioelectric current taken from acupoint A is processed by it and then fed back to acupoint B to activate the disease resistance. It has highercurative effect.

Oral instant membrane of risperidone and preparation method thereof

The invention relates to an oral instant membrane of risperidone and a preparation method thereof, thereby being used for improving the using performance of the risperidone. The technical scheme is as follows: the instant membrane comprises 2-60 parts by weight of risperidone, 25-98 parts by weight of water-soluble pharmaceutical polymer excipients, additives and 0.1-25 parts by weight of water. The oral instant membrane solves the problems that the existing risperidone is clinically difficult to swallow, is not applicable to children and elderly patients for administration and can not be conveniently taken under the situation of having no water. The oral instant membrane can be dissolved on the tongue, the hidden trouble of choking can not be happened no matter how young a baby is, the active ingredients can be absorbed sublingually and absorbed by buccal mucosa, and the onset of action is more rapid in comparison with orally disintegrating tablets. In addition, the oral instant membrane ...

Microcomputer protection for electric power system

Compensation process for inhibiting radar echo signal range migration

The invention relates to a radar echo signal motion inhibition and compensation method, belonging to radar technology domain, comprising: constructing the compensation matrix B and obtaining the two dimensional matrix A by arranging the sample data according to time; processing the matrix V obtained by multiplying A and B using the prestored weight vector L to obtain matrix D to realize pulse compression; each line data of the matrix D being subjected to slow time accumulating to obtain matrix E; multiplying the matrix E with the adjoint matrix B* of the compensation matrix B to obtain the final signal matrix F. The radar echo signal motion inhibition and compensation method is controlled based on match right and can effectively compensate the motion based on the rought speed range and effectively increase the detection probability of the moving object and the parameter estimation precision. Because the interpolation does not needed, the extra signal-noise ratio loss can not be induced ...