Frictionless quick-response balance system

The invention discloses a frictionless quick-response balance system, comprising a cylinder body, a piston shaft sleeve, a lower end cover shaft sleeve, a steel wire rope and a piston rod; the piston rod is inserted into a hollow cavity of the cylinder body; the piston shaft sleeve is installed outside the upper end part of the piston rod in a sleeving manner; the outside of the piston shaft sleeve contacts the inside wall of the cylinder body; an upper end cover and a lower end cover are respectively arranged at the upper and lower end parts of the cylinder body; the lower end cover shaft sleeve is installed on the inside wall of the lower end cover in the sleeving manner; one end of the piston rod is arranged in the hollow cavity of the cylinder body, and the other end of the piston rod passes through the lower end cover shaft sleeve and stretches out from the hollow cavity of the cylinder body; the steel wire rope passes through the hollow cavity of the piston rod; the top part of the ...

Strip steel surface roughness control method suitable for double-stand temper mill set

A strip steel surface roughness control method suitable for a double-stand temper mill set mainly comprises the following steps which are executed by a computer: first, collecting the device characteristic parameters of the double-stand temper mill set, the strip key rolling technological parameter of a to-be-comprehensively-set metal pattern diameter and the strip key quality parameter of the to-be-comprehensively-set metal pattern diameter; second, calculating the percentage elongation under current roll force and front and back tensile stress and the distribution of outlet tensile stress; calculating the roughness of outlet strip steel of a first machine frame, calculating the roughness of outlet strip steel of a second machine frame, and calculating the roughness to control an objective function; and fourth, setting optimum first roll force and optimum second roll force, and completing setting of the roll force by adjusting the position of a piston. The strip steel surface roughness ...

GPRS (General Packet Radio Service) network-based method and device for monitoring positions of students in field practice

The invention discloses a GPRS (General Packet Radio Service) network-based method and device for monitoring positions of students in field practice, belonging to a method and device for monitoring the safety of students in the field practice in agriculture and forestry educational institutions. According to the method and device, positions of the students can be transmitted to a server through a GPRS network and then collected to a position of a teacher, and alarming is carried out according to different regions in which the students are positioned. By using the method and the device, a correct path can be provided for lost students in the first time, so that students in dangers are conveniently rescued in the first time.

Forest aviatic firefighting water fire extinguishing system and method

A forest aviatic firefighting water fire extinguishing system and method belongs to the technical field of forest aviatic firefighting and particularly relates to an assistant decision-making system and method of forest aviatic firefighting water fire extinguishing. According to the forest aviatic firefighting water fire extinguishing system and method, water fire extinguishing is implemented by concentrating the air superiority, GPRS (general packet radio service) is applied to the forest aviatic firefighting, by means of analyzing alarm signals of forest fire, the place of the forest fire is determined, a geographical layer of a fire place, information of positions of forest fire prevention storage reservoirs, water resource distribution information and traffic route distribution information are provided, meanwhile, neighboring air terminal distribution information and fire extinguishing ability of terminals can be corresponding displayed, an optimal flight path is fitted through relevant ...

Forest firefighter personal safety prompting method and system based on wireless network

The invention discloses a forest firefighter personal safety prompting method and system based on a wireless network, and belongs to the technical field of forest fire prevention. The method and the system can provide safety prompts for forest firefighters according to environment monitoring results. The method comprises four steps as follows: firstly, a sensor node collects forest environment data in real time; secondly, the sensor node transmits the collected forest environment data to a monitoring center through the wireless network; thirdly, the monitoring center analyzes the danger level of a forest environment on the basis of the forest environment data, meteorological data, geographic data and forest resource data; and fourthly, the analyzed result is transferred to a terminal. The system comprises four modules corresponding to the four steps in the method. According to the forest firefighter personal safety prompting method and system, a scientific pre-warning function can be realized ...

Multi-phase flow logging instrument adopting full flow-collecting dynamic interface tracking method

The invention discloses a multi-phase flow logging instrument adopting a full flow-collecting dynamic interface tracking method. The multi-phase flow logging instrument adopting the full flow-collecting dynamic interface tracking method comprises a measurement circuit, a full flow collector, an interface measurement sensor joint, a water separating cover and a drive assembly which are connected in turn from top to bottom; the upper liquid inlet of the interface measurement sensor joint is positioned at the lower end of the full flow collector; the lower liquid inlet of the interface measurement sensor joint extends into the bottom of the water separating cover; an oil-gas interface measurement sensor and an oil-water interface measurement sensor are arranged on the outer wall of the interface measurement sensor joint; a flow guide linkage mechanism is positioned in the interface measurement sensor joint and is connected with the drive assembly; in measurement, the yield of gas and oil can ...

Method for compensating residual pressing force in process of rolling six-roller mill extremely thin strip

The invention discloses a method for compensating residual pressing force in the process of rolling a six-roller mill extremely thin strip. The method comprises the first step of collecting main devices and technological parameters of a unit and the standard characteristics and technological parameters of extremely thin strip steel, the second step of defining process variables involved in the parameter optimizing process, the third step of endowing related process parameters with original values, the fourth step of solving optimum rolling technology parameters, the fifth step of solving optimum roll system parameters, and the sixth step of outputting optimum parameters, wherein the steps are executed through a computer. By means of the method, the outlet strip shape is improved to the maximum extent, the pressing force at the roller end is controlled within an allowed range, and the situation that pressure among rollers is distributed unevenly because of shuttling of a middle roller is ...

Different-forest-type environmental factor observation data acquiring device

The invention provides a different-forest-type environmental factor observation data acquiring device, relates to a forest environment factor observation data acquiring device and aims at solving the problem that existing fixed meteorological stations are low in data distribution, data acquiring procedures are tedious, handheld meteorological stations have no long-term automatic observation capacity, building of data bases of different needs a large number of manpower, and acquired data in existing modes are various in format and not easy to dispose. A casing upper cover of the data acquiring device is transparent, and a single chip microcomputer, an output module and a time module are installed in a casing. The signal output ends of a temperature sensor, a humidity sensor and an illumination intensity sensor are connected with the signal input end of the single chip microcomputer, a secure digital (SD) memory card recording module and a display module are connected with the signal output ...

Forest type identification method based on texture information

The invention discloses a forest type identification method based on texture information, belongs to the technical field of remote sensing, and particularly relates to a remote sensing method for classifying forest type on the basis of TM (thematic map) data of the texture information. The method includes the following six steps of S1, confirming TM remote sensing data of an appropriate time as a data source according to bio-meteorology information, preprocessing the TM data; S2, extracting a forest land portion of a researched area; S3, confirming size of a window or a step when the texture information is extracted; S4, extracting video texture information by means of the principle of geostatistics; S5, classifying TM video by means of the maximum likelihood method; and S6, verifying classified result of the maximum likelihood method by means of geoclimatic verifying data. By the aid of the forest type identification method based on the texture information, precision of remote sensing ...

Phenyl aminopyrimidine derivant and preparation method and application thereof

The invention relates to a favorable derivant for activity inhibition of tyrosine kinase, in particular to a phenyl aminopyrimidine derivant and a preparation method thereof. The phenyl aminopyrimidine derivant is used for curing tumors and particularly used for curing chronic granulocytic leukemia, and has the structural formula shown in the specification, and in the formula, X is -CH2 or -(CH2)2, and R is hydroxy or (C1-C7) alkyl containing hetero-atoms (nitrogen-atoms or oxygen-atoms). The derivant can play an obvious activity inhibition role to tumors, particularly chronic granulocytic leukemia, can serve as a targeted inhibitor of tyrosine kinase to be used for tumor treatment, has a simple and convenient preparation method, is easy to popularize and has favorable application value and social value.

Cholinesterase inhibitor polymorph and application thereof

A cholinesterase inhibitor polymorph, wherein specifically disclosed are a octahydroaminoacridine succinate polymorph, a corresponding crystal composition and pharmaceutical composition, and applications thereof. The compound octahydroaminoacridine succinate is used for screening and studying polymorphs, and the discovered polymorphs are appraised and evaluated; crystal forms having better physical and chemical properties are determined for subsequent development and study, and crystal forms having good stability and an excellent therapeutic effect are obtained.

Cholinesterase inhibitor polymorph and application thereof

A cholinesterase inhibitor polymorph, wherein specifically disclosed are a octahydroaminoacridine succinate polymorph, a corresponding crystal composition and pharmaceutical composition, and applications thereof. The compound octahydroaminoacridine succinate is used for screening and studying polymorphs, and the discovered polymorphs are appraised and evaluated; crystal forms having better physical and chemical properties are determined for subsequent development and study, and crystal forms having good stability and an excellent therapeutic effect are obtained.

Preparation method of the microcapsules for low-temperature well cementation to be used to control cement hydration heat

A preparation method of the microcapsules for low-temperature well cementation to be used to control cement hydration heat includes: (S1) a shell material, and added into deionized water, then the resultant mixture being stirred in a thermostat water bath so as to completely dissolve it into a homogeneous and stable shell material solution; (S2) a core material and an emulsifier being put into a three-necked flask and stirred in a thermostat water bath so as to uniformly emulsify and disperse them, forming a stable oil-in-water core material emulsion, while adjusting the pH value of the emulsion with a pH adjuster; (S3) the three-necked flask containing the core material emulsion being transferred to a water bath, and then the shell material solution being dropwise added into it with stirring, after reacting, a solid-liquid mixture being poured out so as to naturally cool it to room temperature.

Inhibidor de colinesterasa polimorfo y aplicación de este

Un polimorfo inhibidor de colinesterasa, en el que se describe específicamente un polimorfo de octahidroacridina succínico, una composición cristalina y una composición farmacéutica correspondientes, y aplicaciones de los mismos. El compuesto succínico octahidroacridina se utiliza para detectar y estudiar polimorfos, y los polimorfos descubiertos se valoran y evalúan; Se determinan formas cristalinas que tienen mejores propiedades físicas y químicas para su posterior desarrollo y estudio, y se obtienen formas cristalinas que tienen buena estabilidad y un excelente efecto terapéutico. (Traducción automática con Google Translate, sin valor legal)

Table structure recognition

According to implementations of the present disclosure, a solution of table structure recognition is provided. A first set of reference points in the image including the table is determined based on a first feature map. The first feature map is generated from an image, and the first set of reference points are candidate points on the separation lines of a first type of the table. Based on at least a part of the first feature map and features of the first set of reference points, a set of predicted separation lines of the first type of the table can be determined in the image. The structure of the table is determined based at least on the set of predicted separation lines of the first type. In this way, the tables of various structures can be restored from the image.

Koliiniesteraasi-inhibiittorin polymorfi ja sen käyttö

Cholinsteraseinhibitorpolymorf og anvendelse deraf

Cutter device, tunneling machine, and cutter changing method

Disclosed is a cutter device. The cutter device comprises a sleeve (2), a rotating sleeve (3), and a cutter assembly (1); the sleeve is provided with an inner cavity; the rotating sleeve is disposed in the inner cavity of the sleeve and is rotatably disposed relative to the sleeve around a first rotating shaft extending in a first direction (Z), and the rotating sleeve comprises a channel passing through in a second direction (X); the cutter assembly comprises a cutter holder (11) and a cutter (12) disposed in the cutter holder; the cutter is rotatably disposed relative to the cutter holder around a second rotating shaft extending in a third direction (Y); the first direction, the second direction, and the third direction are perpendicular to one another; and the outer wall of the cutter holder is in sealing fit with the inner wall of the channel, and the cutter holder is movably disposed in the channel in the second direction. According to the cutter device, the sealing performance is guaranteed by means of the sealing fit of the outer wall of the cutter holder and the inner wall of the channel, and compared with gate sealing in the prior art, the sealing saves gate space, thus the arrangement of a smaller cutter distance can be achieved, and the space of a cutterhead is fully utilized. Further disclosed are a tunneling machine and a cutter changing method.

Cutter device, tunneling machine, and cutter changing method

Disclosed is a cutter device. The cutter device comprises a sleeve (2), a rotating sleeve (3), and a cutter assembly (1); the sleeve is provided with an inner cavity; the rotating sleeve is disposed in the inner cavity of the sleeve and is rotatably disposed relative to the sleeve around a first rotating shaft extending in a first direction (Z), and the rotating sleeve comprises a channel passing through in a second direction (X); the cutter assembly comprises a cutter holder (11) and a cutter (12) disposed in the cutter holder; the cutter is rotatably disposed relative to the cutter holder around a second rotating shaft extending in a third direction (Y); the first direction, the second direction, and the third direction are perpendicular to one another; and the outer wall of the cutter holder is in sealing fit with the inner wall of the channel, and the cutter holder is movably disposed in the channel in the second direction. According to the cutter device, the sealing performance is guaranteed by means of the sealing fit of the outer wall of the cutter holder and the inner wall of the channel, and compared with gate sealing in the prior art, the sealing saves gate space, thus the arrangement of a smaller cutter distance can be achieved, and the space of a cutterhead is fully utilized. Further disclosed are a tunneling machine and a cutter changing method.