101results about How to "Increase β" patented technology

The invention relates to the discovery of novel mutant DNA polymerases that possess altered kinetics for incorporating phosphate-labeled nucleotides during polymerization. The invention further relates to the use of these mutant DNA polymerases in sequencing and genotyping methods.

A variable control displayed through a graphical user interface and linked to a control element. The variable control has graphical representations of readily identifiable and easy to use controls. These controls include at least one text box to display a value. The displayed value can be set by default, or to show the current state of the control element. The variable control also includes at least one range box for assigning a range unit that corresponds to the text box. The variable control also includes a slider control that is linked to the text box and is used to make coarse adjustments to the value displayed in the text box. A spinner is also linked to the text box and is used to make fine adjustments to the displayed value. In a preferred embodiment, the user can select a digit or several digits within the displayed value and adjust only the user-selected digit or digits. Also in a preferred embodiment, the range box automatically updates the range unit when the displayed value is adjusted beyond a predetermined range limit.

Disclosed is a method of making a conductive material or active material that includes graphene or other 2-D materials. The method includes obtaining a layered stack. The layered stack including one or more conductive materials or 2-D materials separated by a metal layer, and one or more substrate materials. The stack can be subjected to a metal removal process to obtain two conductive or active materials. A first conductive or active material can include a first substrate layer attached to the first active layer. The second conductive or active material can include a second substrate layer attached to the second active layer. The first and second active layers can be conductive graphene layers.

The invention relates to a series resonance mode nuclear magnetic resonance detection device and detection method. According to the series resonance mode nuclear magnetic resonance detection device, a three-component magnetic field measuring circuit is connected with a computer; a high power supply with adjustable output voltage, an emission control unit and a signal collection unit are connected; the high power supply with the adjustable output voltage is connected with a high power emission bridge circuit; the emission control unit is connected with a high-voltage relay; one end of the high-voltage relay is connected with a first receiving unit, and the other end of the high-voltage relay is connected with a Nth receiving unit. By the adoption of the series resonance mode, the size and the weight of a receiving device are greatly reduced, the transverse resolution of nuclear magnetic resonance detection is improved, a small-size receiving probe has better adaptability, and by the adoption of the series resonance mode receiving units, consumed manpower, material resources and time when a large coil is paved on spot are avoided, and working efficiency is improved. A plurality of resonance receiving units which are connected in series in each series resonance mode receiving unit work at the same time, and the amplitude of a received nuclear magnetic resonance signal is improved.

The invention provides a rotating arc welding torch with narrow clearance, comprising a hollow axle high speed servo motor 1, an eccentric sleeve 2, a center-up-adjusted bearing 3, a sealed bearing4, a center-down-adjusted bearing 5, a conducting pole 6, a welding torch shell 8 and a conducting nozzle 14, etc. The invention is characterized in that the hollow axle high speed servo motor 1 and the eccentric sleeve2 which are connected together drive the conducting pole 6 and the conducting nozzle 14 to make an eccentric revolution around the axes of the welding torch; the revolution original point is close to the middle part of the conducting pole 6 which runs through the fixed center-down-adjusted bearing 5 and is fixed with the center-down-adjusted bearing 5; the revolving range is regulated jointly by the eccentric magnitude of the eccentric sleeve 2 and the position where the center-down-adjusted bearing 5 of the revolution original point exists on the conducting pole 6. The welding wire produces the rotating arc along with the revolution of the conducting pole 6 and the conducting nozzle 14. A soft wire cable 12 is connected with the loading welding power supply of the soft wire cable. The wearing components of the invention are all standard parts; thereby the implementation cost is low and the welding torch has long service life; using the soft conducting wire connection is convenient and reliable; when in operation, the welding torch can not be affected by the external disturbances.

The invention discloses an audio power amplifier and an audio device. The audio power amplifier comprises a digital-to-analog conversion circuit, an integral comparison circuit, a power output level circuit, and a feedback circuit, wherein the digital-to-analog conversion circuit converts a digital audio signal into a first analog signal; the integral comparison circuit obtains an analog audio signal according to the first analog signal, a feedback signal and a common-mode voltage signal; the power output level circuit supplies the power by employing a second power supply voltage, and carries out power amplification on the analog audio signal to output a power amplification signal; the feedback circuit generates the feedback signal according to the power amplification signal; the feedback circuit includes a voltage division circuit and a feedback branch, wherein the voltage division circuit carries out voltage division on the power amplification signal, and an obtained voltage division signal is output via a voltage division node; a first end of the feedback branch is coupled to the voltage division node, and the second end of the feedback branch outputs the feedback signal; and an amplitude of the common-mode voltage signal is associated with the second power supply voltage and a voltage division ratio of the voltage division circuit. According to the scheme disclosed by the invention, the audio signal output by the audio power amplifier has a large dynamic range, the circuit area is small, and the cost is low.

A support frame for a desktop computer monitor, comprising a base, characterized in that the base is slidably provided with a sliding plate, the sliding plate is vertically and fixedly mounted with a bracket, the bracket is provided with a ball hinge, and a cooling fan is provided on the ball hinge ; The limit sleeve is vertically fixed on the sliding plate, the limit sleeve is provided with a support pole, the bottom of the support pole is provided with a buffer spring, the top of the pole is horizontally hinged with a horizontal bracket, and the right end of the rotating plate is hinged on the vertical hinge. On the support, the right end of the vertical hinge support is fixedly installed with a fixed plate, and the fixed plate is provided with several fixing screws, and the computer monitor is vertically fixedly installed on the fixed plate; the present invention can adjust the computer monitor in multiple dimensions , the adjustment is more flexible and convenient, and the adaptability is strong; the buffer spring can play a good role in buffering and shock absorption when adjusting the computer monitor, and the sliding keyboard bracket in the base can place the keyboard, and can be retracted into the sliding cavity when not in use Inside, very practical.

The invention relates to a novel intelligent stand column swing arm crane. The novel intelligent stand column swing arm crane comprises a stand column. Strengthening plates are evenly arranged on the outer sides of the lower end of the stand column. Jacking rotating tables are arranged between a lower supporting plate and an upper supporting plate. Auxiliary plates are arranged between the upper supporting plate and the stand column. The upper portion of the stand column is sequentially provided with an annular rail and an annular guide rail from bottom to top. A rotating shaft is connected with the top end of the stand column. A bearing box is connected with the upper end of the rotating shaft. A safety hook is connected with the left end of the bearing box. A weight sensor is arranged in a lifting tool. The upper supporting plate is arranged at the top ends of the jacking rotating tables. A connecting pillar is connected with the lower end of the upper supporting plate. The lower end of the connecting pillar is connected with a rotating table. A lifting seat is connected with the lower end of the rotating table. Hydraulic cylinders are connected with the lower ends of the left side and the right side of the lifting seat. The lower ends of the hydraulic cylinders are connected with the lower supporting plate. The input end of a lighting device is connected with a PLC. Thus, the novel intelligent stand column swing arm crane is high in automation and intelligence degree, powerful in function, stable in operation and high in safety degree.

The invention relates to an integrated magnetic elasticity sensor, belonging to the technical field of micro electro mechanical systems. The integrated magnetic elasticity sensor comprises a glass substrate, a magnetic field excitation offset coil, a signal reception coil, a sensor support, a magnetic belt material and insulation material layers. The magnetic field excitation offset coil is located on the glass substrate; the signal reception coil is located above the magnetic field excitation offset coil; the sensor support is located above the signal reception coil; the insulation material layers are respectively located among the magnetic field excitation offset coil, the signal reception coil and the sensor support; and both ends of the magnetic belt material are fixed on the sensor support. The invention has the advantages of high processing precision and small size of the device, can eliminate background signals of the excitation signal in the reception coil by adopting an 8-shaped collection coil, realizes real-time monitoring of vibration signals and can realize the portable characteristic.

The invention uses beta-cyclodextrin to synthesize six kinds of new beta-cyclodextrins derived from alpha-Schiff base and six chiral stationary phases thereof, wherein the invention reacts cyclodextrin aldehyde and six amine compounds to prepare beta-cyclodextrin derived from alpha-Schiff base, the compounds reacted with cyclodextrin aldehyde are L-phenylglycinol, D-phenylglycinol, L-tyrosine, D-tyrosine, L-tryptophan and D-tryptophan. The synthesis route is simple, with high yield, simple operation and easy purification. The invention can be used in chiral separation for the qualitative and quantitative research on optical isomer of amino acid, ferrocene amine compound, drug, sulfur-containing compound, alcohol compound, amino-compound and various chiral compounds. The invention can be used in asymmetry catalysis for recovering and circulating catalyst.

A pneumatic redundancy self-sensing multi-degree-of-freedom flexible nimble finger comprises a cylindrical flexible finger base body and a circular-truncated-cone-shaped flexible connecting base body. The flexible finger base body is provided with four pneumatic cavities distributed circumferentially and evenly in the axial direction. A bent inner core is arranged at the axis of the flexible finger base body, and tube connectors are arranged at the end of the flexible finger base body. Four micro sensitive channels distributed circumferentially and evenly are formed in the peripheries of the pneumatic cavities. Each micro sensitive channel comprises an arc sensitive channel body and a linear sensitive channel body and is filled with gallium-indium-tin liquid alloy or a liquid sensitive piezoresistive element. Four rubber tube connectors are arranged at the finger root of the flexible nimble finger and correspond to the pneumatic cavities. The pneumatic redundancy self-sensing multi-degree-of-freedom flexible nimble finger has the advantages of being simple in structure, low in weight, clean, safe, large in working space, high in control precision and the like, the effect that the multi-degree-of-freedom flexible mechanical finger has high precision during operation can be ensured, and the finger can be widely applied to the multiple fields such as industrial and agricultural production, national defense security and medical rehabilitation.

The invention provides an urban vehicle-mounted network moving switching method based on IPv6 (Internet Protocol Version 6). An urban vehicle-mounted network comprises a boundary router, an access router, access nodes and a vehicle node, wherein the boundary router serves as the boundary router of the urban vehicle-mounted network to be connected with a backbone network of the internet; the whole urban vehicle-mounted network is covered by all the access nodes, and all the access nodes are connected with one access router; the access router is connected into the internet through the boundary router; and the vehicle node is connected into the internet through the access nodes within an one-hop range.

The present invention relates to a method of producing Rebaudioside A in a high yield by recycling by-products produced when Rebaudioside A is produced from leaves of Stevia Rebaudiana Bertoni containing a sweetening material.

The invention provides a near-bit constant-power wireless short transmission method and a near-bit constant-power wireless short transmission device. The device comprises a sending portion and a receiving portion, the sending portion is connected with a drill bit measurement pup joint, and the receiving portion is connected with a measurement while drilling system. The sending portion processes measurement data of the drill bit measurement pup joint and then sends to the receiving portion by short transmission, and the receiving portion further processes the data and then sends to the measurement while drilling system. An insulating pup joint is inserted into the middle of a structure of the sending portion and divides the sending portion into a sending anode and a sending cathode, and the sending anode and the sending cathode are electrically insulated. An insulating pup joint is inserted into a structure of the receiving portion and dirvides the receiving portion into a receiving anode and a receiving cathode, and the receiving anode and the receiving cathode are electrically insulated. The sending anode sends emission signals into a stratum, then the emission signals are received by the receiving anode through the stratum, a circuit is formed by addition of the receiving cathode and the sending cathode, and accordingly wireless short transmission is realized.

The invention provides a variable ship length type wave energy underwater vehicle. The variable ship length type wave energy underwater vehicle comprises a wave energy underwater vehicle body, whereinthe wave energy underwater vehicle body comprises a ship body, a hydrofoil which is mounted at the lower part of the ship body through a support, and a rudder which is mounted at the tail part of theship body; the ship body comprises three parts, namely, a head section, an intermediate section and a tail section; and the intermediate section is a telescoping section. According to the variable ship length type wave energy underwater vehicle, the length of a ship in the sea with different wave conditions can be controlled; compared with a fixed ship length type wave energy underwater vehicle,the variable ship length type wave energy underwater vehicle has the advantages that the ship length can be properly changed so as to improve the wave energy utilization efficiency of the wave energyunderwater vehicle; in case of a long wave height condition, the ship length can be increased in order to increase the longitudinal swinging and heaving range of the ship, and as a result, the propelling performance of the underwater vehicle can be improved; in case of a short wave height condition, the ship length can be decreased to reduce the rotating inertia, thus the ship body moving range isexpanded, and as a result, the wave energy can be effectively utilized to propel.

A system and method involve performing electron paramagnetic resonance on an object under study. The system comprises a first field generator adapted for generating an orienting magnetic field for orienting the magnetization of the object under study and a second field generator adapted for generating RF excitation waves at a frequency to generate electron paramagnetic resonance (EPR) in the object under test. The system also comprises a detection unit adapted for detecting the EPR signals emitted by the object under test and a control unit adapted for controlling the relative orientation of the orienting magnetic field induced by the first field generator with respect to the detection unit. The system furthermore comprises a processing unit programmed for combining detected EPR signals obtained using different relative orientations of the orienting magnetic field with respect to the detection unit.

The invention aims to provide a method for obtaining an optimal task unloading decision in a cloud and mist computing environment. Meanwhile, the time delay and the energy consumption are considered,so that the system overhead is reduced to the minimum. The method for obtaining an optimal task unloading decision in a cloud and mist computing environment mainly comprises the following three steps:A, performing mathematical modeling on a system; b, mixing a problem formalized text with an integer programming problem; C, using a branch and bound algorithm for solving. According to the method, the scene that the cloud node and the mist node exist at the same time is considered, the scene that unloading decisions need to be made for multiple tasks is solved, energy consumption and time delayare comprehensively considered, and therefore expenditure of the mobile terminal is reduced to the minimum.

The invention relates to a wind-solar hybrid wave power station, comprising a pillar and a floating body, the pillar is fixed on the seabed, the floating body is provided with a pillar hole, and a pillar is sleeved in each pillar hole, the floating body is movably connected with the pillar and can reciprocate up and down relative to the pillar; A linear generator is arranged between the floating body and the pillar, the mover of the generator is arranged on the floating body, and the stator is arranged on the pillar. The wave power station consists of a number of independent floating bodies and pillars. There is a linear generator between each pillar and the floating body. All generators are connected by wires to form a power supply network; Battery. The present invention arranges a number of floating bodies and pillars equipped with generators in the forward direction of the waves, connects them through wires to form a power supply network, continuously collects the energy of wave fluctuations in a large range, and gathers the electricity generated by each generator through the power supply network. To realize continuous power supply, the invention has a simple structure and is relatively convenient for installation and maintenance.

A marine acoustic source system for generating an acoustic wave in a body of water. The marine acoustic source system includes a first marine acoustic source array having first and second external source sub-arrays, each sub-array including one or more individual source elements; a first actuator device connected to the first external source sub-array; and a first rope connecting the first actuator device to a first lead-in that is configured to connect to a head of a streamer. The first actuator device is configured to control a length of the first rope in order to control a position of the first source array relative to the streamer.

The invention relates to a film evaporator for cellulose dissolving. The film evaporator comprises a cavity, a rotatable cylindrical rotor arranged in the cavity, and a row or a plurality of rows of scarper plates arranged in the periphery of the rotor along an axial direction, the scarper plates comprise vertically arranged scraper plates and obliquely arranged scraper plates, and the obliquely arranged scraper plates comprise scraper plates having a negative angle to a vertical direction, and scraper plates having a positive angle to the vertical direction. The scraper plates having a negative angle to the vertical direction provide a demixing effect for materials in the dissolving process, and effectively improve the dissolving ability and the dissolving uniformity of the film evaporator per unit area. The dissolving efficiency is improved, so low dissolving temperature and low vacuum degree are used at a certain degree in the selection of process conditions, thereby the material decomposition risk is reduced, and safe production is facilitated.

The invention relates to a module for capturing kinetic energy by utilizing a single pendulum. The module comprises an oscillating bar, a hollow pendulum bob, two magnets and a kinetic energy capturing device. The oscillating bar is used for serving as an element connecting the upper portion and the lower portion. The hollow pendulum bob is located at the tail end of the oscillating bar to enable a whole simple pendulum device to swing and further generate kinetic energy for capturing. The hollow pendulum bob is made of iron. The two magnets are respectively located at the left highest point and the right highest point of the swinging radian of the hollow pendulum bob to absorb the hollow pendulum bob to increase upward swinging force and obtain larger kinetic energy accordingly. The kinetic energy capturing device is located at the upper end of the oscillating bar which is utilized to be connected with the whole pendulum device to capture the kinetic energy produced by the pendulum device. The magnets are added in the simple pendulum device, and a small ball with weight is added in the pendulum bob, so that the simple pendulum swinging amplitude and force are increased, and larger kinetic energy can be obtained. Therefore, the pendulum can have more purposes besides timing.

The invention discloses a multimedia teaching system comprising a schoolyard teaching management center and a teaching main computer, wherein the schoolyard teaching management center is connected with the teaching main computer; the teaching main computer is connected with an information releasing device; the information releasing device comprises a plurality of information displays; the information releasing device is connected with the information displays through USB interfaces; and the information displays are connected with PCs (personal computers). In the way, the speed and the range of information transmitting can be improved by the multimedia teaching system, and a teaching source is transmitted to the PCs of students through the plurality of information displays, so that the students can conveniently receive and digest information, the teaching time is shortened, the study efficiency of the students is improved, and the teaching efficiency is improved..

The invention discloses a damping buffer base of a machine tool. The damping buffer base comprises a sectional layer, a damping layer and a compression resistant layer which are arranged from top to bottom, wherein the sectional layer consists of a plurality of sheet boards which are spliced with one another; the damping layer comprises an upper framework tank; the sectional layer is positioned in the upper framework tank; raised sheets are arranged between the sectional layer and the inner bottom surface of the upper framework tank; each sheet board corresponds to one raised sheet; the compression resistant layer comprises a lower framework tank; the upper framework tank is positioned in the lower framework tank; and a spring is arranged between the upper framework tank and the lower framework tank. Compared with the prior art, the damping buffer base of the machine tool can fix and bear the whole machine tool to absorb and damp vibrations generated during working operation of the machine tool, so that precision during workpiece processing can be improved to avoid deviation caused by vibrations, and influences of frequent vibrations on precision parts in machine tool equipment can be reduced, and therefore, the service life of equipment is prolonged.

The invention discloses a preparation method of a cyclodextrin terminated star-shaped polymer. The method includes the steps of: under anhydrous and oxygen-free conditions, using dipentaerythritol asthe initiator, using stannous isooctanate as the catalyst to carry out ring-opening polymerization reaction on epsilon-caprolactone so as to obtain six-armed polycaprolactone, and then carrying out esterification reaction on p-aminobenzoic acid to obtain an arylamine terminated six-armed star-shaped polymer, and then further carrying out addition-dehydration reaction with cyclodextrin monoaldehyde, thus obtaining the imine group chained and cyclodextrin terminated six-armed star-shaped polymer. According to the method, cyclodextrin is disposed at the terminal of the star-shaped polymer, the prepared product not only has the three-dimensional structural characteristics of the star-shaped polymer itself, but also can better retain the advantages of the cyclodextrin chamber and cavity surrounding structure, thus enlarging the application range. The invention expands the types of star-shaped cyclodextrin polymers. The preparation method has the advantages of simple operation, mild reactionconditions, and simple product post-treatment, and is beneficial to realization of industrial production.

The invention discloses a differential to single-ended convertor. The differential to single-ended convertor comprises an amplifying circuit, a phase inverting circuit, and a superposed circuit, wherein the amplifying circuit is used for receiving a first input signal and a second input signal, outputting a first amplified signal after amplifying the first input signal, and outputting a second amplified signal after amplifying the second input signal, wherein the phase of the first input signal is opposite to the second input signal; the inverting circuit is used for receiving the second amplified signal and outputting the second phase-inverted amplified signal after inverting the phase of the second amplified signal; and the superposed circuit is used for receiving the first amplified signal and the second phase-inverted amplified signal and outputting a superposed signal after superposing the first amplified signal and the second phase-inverted amplified signal. The differential to single-ended convertor can be applied to a radio-frequency circuit.

The invention discloses a preparation method of a nickel oxide nanotube. The preparation method comprises the following steps: preparing a zinc oxide seed layer by virtue of a spin coating method, preparing highly-ordered zinc oxide nanorod templates vertical to an FTO conductive substrate, and controlling the lengths of zinc oxide nanorods by controlling the hydrothermal reaction time; and preparing a layer of flake-shaped nickel oxide coating the zinc oxide nanorods by virtue of a chemical bath method, removing a zinc oxide template through alkaline corrosion, and finally carrying out annealing, so as to obtain the nickel oxide nanotube vertical to the FTO conductive substrate. The preparation method is low in cost and simple and easy in operation, the reaction conditions are controllable, and the prepared nickel oxide nanotube structurally has a relatively large specific surface area, is beneficial to the rapid transmission of electrolyte ions in a nickel oxide nano-strucutre and iscapable of improving the electrochromic performance of nickel oxide materials.

The invention provides a large-amplitude high repetition frequency nanosecond balance pulse signal generator. The large-amplitude high repetition frequency nanosecond balance pulse signal generator includes a unipolarity pulse signal generation circuit and a balance pulse generation circuit, wherein the unipolarity pulse signal generation circuit includes a triode pulse generation circuit which is formed by triodes; each triode includes two cascades, has a cascaded connection design, and has avalanche effect; the unipolarity pulse signal generation circuit is used for generating a large-amplitude high repetition frequency nanosecond negative pulse signal, started by the input bipolarity start pulse signal; the front end of the balance pulse generation circuit is electrically connected with the unipolarity pulse signal generation circuit; and the balance pulse generation circuit is used for converting the large-amplitude high repetition frequency nanosecond negative pulse signal into a balance pulse signal, and generating a large-amplitude nanosecond balance pulse signal. The large-amplitude high repetition frequency nanosecond balance pulse signal generator has the advantages of being novel in design, being simple in the circuit structure, being high in the waveform symmetry of the generated nanosecond balance pulse signal, being low in the ringing level, being high in amplitude, and being high in repetition frequency, and being able to be applied to a pulse ultra wide band radar system to guarantee greater detection distance and good detection performance.

The invention discloses a lifting type sweeping device, which comprises a sweeping mechanism and a lifting mechanism, wherein the sweeping mechanism comprises a motor, a speed reducer, a brush disc and brush hair; the speed reducer is connected with the motor; the brush hair is arranged on the brush disc; an output shaft of the speed reducer is connected with the brush disc; the lifting mechanism comprises a brush arm and a hydraulic oil cylinder; one end of the brush arm is provided with a supporting frame, and the other end of the brush arm is hinged with a sweeper body; one end of the hydraulic oil cylinder is connected to the middle part of the brush arm, and the other end of the hydraulic oil cylinder is connected to the sweeper body; and the motor and the speed reducer are arranged on the supporting frame. According to the lifting type sweeping device, the height of a sweeping brush from the floor can be conveniently adjusted and controlled, the sweeping brush is prevented from colliding with barriers, a certain distance between the brush disc and road curbstone can be controlled, and the road curbstone can also be swept, so that the sweeping effect is in the optimal state.

The invention relates to a laser radar ranging system. The system comprises a variable gain amplifier, a converter and a controller, the variable gain amplifier is connected with the converter, and the converter is connected with the controller; wherein the controller is used for determining the distance measurement distance between the target object and the optical receiver according to an outputsignal of the converter, and adjusting the gain of the variable gain amplifier according to the distance measurement distance. The controller adjusts the variable gain amplifier to reduce the gain ina short distance and adjusts the variable gain amplifier to increase the gain in a long distance, so that the amplitude of an optical signal detected by the laser radar in long-distance detection isenhanced, the dynamic range of a detection signal of the laser radar is improved, and the distance measurement performance and the distance measurement capability are further improved.

The invention discloses a generator set three-stage parallel serial connection bypass system and an adjusting method thereof. The system comprises a high-pressure bypass system, a low-pressure bypasssystem and a low-low-pressure bypass system; the high-pressure bypass system comprises a high-pressure bypass filter, a high-pressure bypass valve and a high-pressure bypass isolation valve, the low-pressure bypass system comprises a low-pressure bypass filter, a low-pressure bypass valve and a low-pressure bypass isolation valve which are sequentially connected between a reheating steam heat segment pipeline and a condener, the low-low-pressure bypass system comprises a low-pressure cylinder isolation valve and a medium-pressure exhaust low-pressure bypass communication valve, the low-pressure cylinder isolation valve is arranged on an air guide pipe between a medium pressure cylinder and a low-pressure cylinder, an inlet pipeline of the medium-pressure exhaust low-pressure bypass communication valve is arranged on a medium-pressure cylinder exhaust pipeline, an outlet pipeline is arranged on a pipeline between the low-pressure bypass valve and the low-pressure bypass isolation valve,the high-pressure bypass system and the low-pressure bypass system are connected through a high and low pressure bypass communication valve, and a pipeline between the low-pressure bypass valve and the isolation valve is connected with a heat net heater through a low-pressure bypass heat supply adjusting valve.