217results about How to "Big-amplitude" patented technology

The invention discloses an on-line self-detecting method of surface defect in the ship formation steel predisposing course, which comprises the following steps: allocating the steel surface luminous equipment to form light field on two faces of on-line steel; setting several cases of independent imaging measuring device corresponding to each light field; proceeding real-time image of two faces of steel simultaneously when the steel moves along horizontal direction; disposing the image and marking the defect point; gathering the image grey scale and colority information separately through grey scale image information collector and colority image signal collector; analyzing and disposing the gathered grey scale and colority information through industrial computer software; adapting image grey scale character to identify and classify the defect point; starting the marking device to mark the defect point when the defect point is detected. The invention shortens the ship formation period greatly, which improves the ship body structure quality and detecting precision.

The invention relates to a tamping unit (1) for a track tamping machine, comprising tamping tool pairs, which are arranged on a support (2) that is guided in a tamping unit frame in a height-adjustable manner and which are designed as rocking levers. The lower tamping pick ends (5) of the tamping tool pairs, which lower tamping pick ends are intended to be plunged into a ballast bed (4), can be driven in opposite directions by means of an oscillating drive (6) and can be brought next to each other hydraulically. According to the invention a hydraulic cylinder (11) and a travel sensor (12) for determining the hydraulic cylinder position are associated with each of the tamping tools (3) of a tamping tool pair in order to increase the stability of the tamping unit, wherein the hydraulic cylinders (11) form the drive for bringing the lower tamping pick ends next to each other and the oscillating drive (6) of the tamping tools (3) and the hydraulic cylinders (11) are controlled in dependence on the travel sensor signals.

The present invention is additive for suppressing and delaying foam generation in coking reaction tower and its preparation process, and relates to oil refining additive technology. The additive is prepared through compounding high molecular weight block polyether 30-50 wt%, fatty alcohol 20-40 wt% and solvent 20-40 wt%, where, the high molecular weight block polyether is block copolymer of ethylene glycol, epoxy ethane and epoxy propane of molecular weight 10,000-20,000, and the fatty alcohol is isocotanol or 3-enanthol, and the solvent is water solution of alcohol. The preparation process includes the first feeding solvent into reaction kettle and heating slowly to 40-60 deg.c, adding block polyether and fatty alcohol in the ratio via stirring to react for 1-2 hr, cooling and filtering off solid impurity to obtain the product. The additive can suppress and delay foam generation in coking reaction tower effectively.

The invention discloses a method using the washing oil produced by the coal tar to prepare gasoline and diesel with hydrogen, which is essentially characterized in that the washing oil produced during the coal carbonization process is mixed with the hydrogen to obtain the hydrogenation oil through a reactor filled with protective agent, demetalization activator, hydrogenation refined activator and / or hydrogenation modified activator; the hydrogenation oil enters into a high-pressure separator; and the hydrogen obtained at the upper part is recycled to use, and the materials at the lower part are stripped or fractionated to obtain gasoline (naphtha) and diesel. The method can effectively produce high-quality and clean diesel products with washing oil.

The invention discloses a wireless contention access backoff method. The method comprises the following steps: the function between a normalized network throughput Rho and an AISN (Average Idle Slot Numbers) Lidle is firstly established, the optimal AISN range is defined according to the established function relationship, the AISN in the different scenes are positioned in the range, and the network throughput all can close to the maximum throughput and has nothing to do with the specific network scene. The size of DCWA (Dynamic Contention Windows Adjustment) is adjusted according to that the AISN whether or not is in the optimal idle slot number range: when the contention window is small, the increase amplitude is large and the decrease amplitude is small; and when the contention window is large, the increase amplitude is small and the decrease amplitude is large, so that the average contention windows of all nodes are tend to be the same, and the throughput and the fairness of the network are improved.

The invention discloses a quick-type alternated cooling and heating device for simulating the reconstruction of a coal seam gas reservoir. A columnar core chamber, a confining-pressure loading cavity and an axial-pressure loading cavity are arranged in a core clamping device. A columnar hollow coal core is arranged in the columnar core chamber, and a heat and coldness resistant and glass-sealed cavity is arranged in the hollow coal core. The confining-pressure loading cavity and the axial-pressure loading cavity are both connected with an axial-pressure and confining-pressure loading system. A pipeline of a gas loading device of a hole permeability testing system is communicated with the columnar core chamber, and a pipeline of a gas collection device is sequentially connected with a flowmeter and the columnar core chamber. According to the quick-type alternated cooling and heating device for simulating the reconstruction of the coal seam gas reservoir, a microwave body is used for heating, liquid nitrogen is used for cooling, and the construction processes of deformation, displacement, generation, development and the like of coal internal hole fissures under the environment where high temperature and low temperature continuously change can be effectively simulated. Original seepage characteristics of the reservoir can be simulated through axial-pressure and confining-pressure loading. By providing quick temperature-changing construction with different frequencies and ranges, the sensitivity of the coal reservoir to temperature changing can be effectively tested, and experimental basis is provided for the field application of the temperature-changing construction of the reservoir.

The invention discloses a transparent and environment-friendly underwater consolidated solvent-free epoxy grouting material. The transparent and environment-friendly underwater consolidated solvent-free epoxy grouting material is prepared from a first component and a second component. The weight ratio of the first component to the second component is 100:(0.5-100). The first component is prepared from, by weight, 20-85 parts of epoxy resin, 25-80 parts of reactive diluent and 0.5-5 parts of interfacial modifier. The second component is prepared from, by weight, 10-95 parts of amine curing agent, 0-40 parts of waterproof dispersant and 0-20 parts of accelerant. The invention further discloses a preparation method and application of the transparent and environment-friendly underwater consolidated solvent-free epoxy grouting material. The grouting material is high in strength, good in water plugging and leakage preventing effect, good in waterproof performance and comprehensive mechanical property and low in toxicity, the preparation method is simple, and the application range is wide.

The invention relates to a method for improving functionality of wood, in particular to a flame-retardant solid wood composite section improved through processes of wood heat treatment and flame retardant treatment and a manufacturing method thereof, belonging to the technical fields of wood functionality improvement and wood processing. The manufacturing method of the flame-retardant solid wood composite section comprises the steps of: (1) wood chip manufacturing; (2) first stacking and drying; (3) heat treatment improvement; (4) normal-pressure impregnation flame retardant treatment on wood chips; (5) second stacking and drying; and (6) gluing and fixing. By means of the method, the advantages of the wood subjected to the carbonization heat treatment and the flame retardant treatment are combined together and the respective disadvantages are overcome to ensure that the obtained solid wood composite section has the advantages of high dimensional stability, strong decay and weather resistance, good flame retardant effect because of a uniformly permeated flame retardant, simple production facility, low production cost and high wood outturn percentage. The obtained solid wood composite section is a good material applied to indoor structure beams, furniture and flame retardant wood doors.

The invention discloses a solid / fluid interfacial wave detecting device and a method based on a vector hydrophone and belongs to the technical field of ultrasonic testing and analysis. A signal exciting module generates square-wave pulse signals; an excitation signal radiation module generates interfacial waves which spread along an interface; the vector hydrophone in a signal receiving module is used for receiving the interfacial wave signals directly in water next to the interface, can obtain vector information of a sound field and improve noise jamming resistance and line spectrum detection capacity of a system, is fixed on a cross support composed of a double-shaft screw rod moving table, and moves accurately through an external control circuit; and finally a signal collecting module transmits the collected waveform data to a computer terminal for data processing and display. The method is flexible and convenient, detection at any position and array receiving of the solid / fluid interfacial waves can be achieved, the data connecting quantity is large, and the detecting accuracy and reliability can be improved greatly through post signal processing.

The invention discloses an audio processing device. The audio processing device comprises a signal preprocessing unit used for adjusting amplitude of an external audio signal within a preset amplitude range and sending the external audio signal to an audio processing main chip unit, the audio processing main chip unit which is connected to the signal preprocessing unit and is used for audio gain adjustment control operation of the received audio signal and sending the audio signal to an audio power amplifier unit, and the audio power amplifier unit which is connected to the audio processing main chip unit and is used for amplifying the audio signal and sending the audio signal to a loudspeaker. According to the audio processing device disclosed by the invention, the signal preprocessing unit is additionally arranged at an input end of the audio signal, thus automatically optimizing the final audio output effect, effectively processing the audio signal, guaranteeing audio listening effect for users and being beneficial to enhance life quality and product use experience of users.

The invention provides a diaphragm valve body of a flow control valve, and solves the problem of unstable flow regulation caused by vibration and separation of a valve plate portion of the diaphragm from a keeper, thereby steadily conducting flow regulation. The diaphragm valve body (38) of the flow control valve comprises a diaphragm (42) provided with a valve plate portion of a radial central portion arranged opposite to a valve seat (44), an annular fixing portion (115) of an outer portion, and a flexible film portion (116); the keeper (40) keeping the valve plate portion (112). The diaphragm valve body of the flow control valve can change water flow of a water channel (36) according to a fractional dose between the valve plate portion (112) and the valve seat (44); the valve plate portion (112) and the flexible film portion (116) of the diaphragm (42) are arranged in a method of split parts; the valve plate portion (112) is bonded and fixed on the keeper (40); on the other hand, the keeper (40) is employed to clamp an inner portion (116B) of the flexible film portion (116), so the flexible film portion (116) can be fixed on the keeper (40).

The invention provides a picosecond balance pulse signal generator. The picosecond balance pulse signal generator comprises a pulse signal generation circuit, a first shaping circuit and a second shaping circuit. The pulse signal generation circuit comprises an avalanche triode pulse generation circuit which is formed by two cascaded avalanche triodes and used for generating a bipolar nanosecond balance pulse signal by an inputted negative polarity trigger pulse signal via triggering. The front end of the first shaping circuit is electrically connected with the pulse signal generation circuit and used for shaping the nanosecond balance pulse signal so that a picosecond pulse signal is generated. The front end of the second shaping circuit is electrically connected with the first shaping circuit and used for shaping trailing and overshoot of the picosecond pulse signal. The high-amplitude picosecond balance pulse signal generator is simple in structure and small and exquisite in circuit structure, and the generated balance pulse waveform is great in symmetry, small in trailing and high in amplitude so that the picosecond balance pulse signal generator can be applied to a pulse type ultra wide band radar system, and detection requirements of the pulse type radar system for different depth and resolution can be met.

The invention relates to a preparation method of a phosphogypsum-based sludge drying agent, comprising the following steps: using phosphogypsum as a basic raw material, adding blast furnace slag, steel slag and a clinker, stirring for 30-45 min to uniformly mix the above materials, and adding a chemical exciting agent to prepare a cementing material which is the phosphogypsum-based sludge drying agent. The phosphogypsum-based sludge drying agent is poured into dewatered sludge, and stirring is carried out for 3-10 min to prepare a mixture. the mixture is placed in a sealed container and is maintained at the temperature of 20 DEG C+ / -1 DEG C and at humidity of being greater than or equal to 95% for 3-14 days, and moisture in the sludge is removed so as to further dry the sludge. The phosphogypsum-based sludge drying agent has advantages of large reduction extent of water content, short drying time and obvious drying effect; raw materials are mainly wastes; cost is low; energy consumption is low; there is no secondary pollution to the environment; and problems such as high water content of municipal sludge, high drying cost and the like can be solved.

The invention discloses a low-power consumption bandwidth-multiplying operational amplifier realized by metal oxide semiconductor (MOS) devices, which belong to the field of analogue integrated circuit design. The amplifier comprises a shunting input stage, an intermediate stage and a rail-to-rail output stage, wherein the shunting input stage consists of two N-channel metal oxide semiconductor (NMOS) transistors and two P-channel metal oxide semiconductor (PMOS) transistors, converts an input voltage signal into a current signal, and forms low forward-backward signal current; the intermediate stage consists of four low voltage current mirrors, and amplifies recovery current to realize a recovery current amplification function; and the rail-to-rail output stage consists of four PMOS transistors and four NMOS transistors to realize the rail-to-rail output of signals. The low-power consumption bandwidth-multiplying operational amplifier has a plurality of advantages of capability of increasing a bandwidth by more than triple under the condition of not remarkably increasing power consumption, increasing of low frequency gain and signal swing rate, capability of working in a low voltage environment to increase input / output signal amplitude, and the like; each MOS device can adopt the conventional MOS transistors, and also can adopt strained silicon MOS devices with high mobility to further improve the performance of the circuit.

The invention relates to a naturally-energy-driven wing-rudder linkage long-endurance twin-hull unmanned boat, and belongs to the field of unmanned boats. The naturally-energy-driven wing-rudder linkage long-endurance twin-hull unmanned boat comprises a twin-hull sheet body, four wave swinging hydrofoils, wing-rudder linkage mechanisms, hydrofoil mounting plates, a solar panel, a wind generator and a fan bracket. Two of the swinging hydrofoils are arranged at the bow and two of the swinging hydrofoils are arranged at the stern, and the swinging hydrofoils are arranged side by side in the widthdirection of a hull. The arrangement method overcomes the structural weight gain burden when the wings are greatly expanded. The front and rear hydrofoils extend towards the bow and the stern correspondingly, so that the hydrofoils utilize the longitudinal motion of the hull in waves and the heave amplitude is larger than the heave amplitude of the bow and the stern of the sheet body, and thus the thrust generated by the hydrofoils is effectively improved. The wing-rudder linkage mechanisms adopt hydraulic transmission devices, the thrust of the hydrofoils on the left side and the right sideof the hull is changed by limiting the rotation range of the swinging hydrofoils on the left side and right side of the hull, a thrust difference is generated to drive the unmanned boat to rapidly rotate the bow, and when the rotation of all the hydrofoils are limited at the same time so that the unmanned boat cannot generate thrust, the unmanned boat can quickly stop, and therefore, the unmannedboat has the capability of rapidly rotating the bow and stopping in an emergency.

An electric connector with a locking metal piece is provided. Even when locking parts of a mating connector is located on any of the inner side and the outer side of the terminal wall of the electric connector in an embedded fit of the connectors, the locking parts can be locked by means of the locking metal piece. The locking metal piece (80) is formed by bending a metal plate in the plate thickness direction and comprises a base portion (81) arranged on the upper wall surface of the terminal wall (65) of a shell opposite to the mating connector, and two locked foot portions (82, 83) which extend from the base portion in the terminal arrangement direction of the shell and bend in the plate thickness direction along the terminal wall surfaces of the inner side and the outer side of the terminal wall. Locked parts which are stopped relative to the locking parts (35A, 35B) of a mating locking part (30) installed on the mating connector (1) in the connector pull-out direction are formed by hole portions, recess portions or projection portions at the two locked foot portions (82, 83).

The invention relates to a rotary mechanical fault diagnosis method based on analytical modal decomposition. The rotary mechanical fault diagnosis method comprises the following steps: (1) if the fault character frequencies possibly existing in a certain rotary machine are f1, f2, f3, ..., fn, carrying out the analytical modal decomposition on original vibration signals, and extracting the signals of frequency bands of the fault character frequencies; (2) determining the frequency spectrums of all the extracted signals to determine whether the components of the fault character frequencies exist in the frequency spectrums; (3) maintaining the signal frequency spectrums with the fault character frequencies, and removing the frequency spectrums without the fault character frequencies; (4) setting the fault character frequencies contained in the signals extracted through the analytical modal decomposition method to be f1, f2, f3, ..., fm, and judging whether faults and parts with failure exist in the rotary machine according to the contained components of the frequencies. The rotary mechanical fault diagnosis method has the advantages that the frequency component in the frequency spectrums of processed fault signals is relatively single, and the amplitude of the fault frequency is also increased. During processing, analysis and processing for other uncorrelated frequency component signals are omitted, and the processing time is shortened.

The invention discloses automatic clothing stacking equipment, and belongs to the field of clothing production and finishing processing. A laminating translation mechanism, a clamping and clothes pulling mechanism and a clothes placing and conveying mechanism are sequentially and fixedly arranged on the upper side of a clothes stacking support in the horizontal direction, a clothes clamping pressing plate is arranged on the upper side of a clothes clamping bearing plate, a main folding plate is arranged on one side of the middle of the clothes stacking frame, side folding plates are symmetrically arranged on the two sides of the clothes stacking frame correspondingly, a clothes placing plate is horizontally arranged in the clothes stacking frame, the clothes placing plate is arranged on atranslation guide rod in a sliding mode, a flattening ring tube is arranged on an arrangement support on the upper side of the clothes stacking frame, and a material falling mechanism is horizontallyarranged on a clothes conveying support on the upper side of a clothes conveying belt. According to the automatic clothing stacking equipment, the structural design is reasonable, the clothes can be stably and efficiently folded and processed, the clothes which can be folded and processed can be conveniently and smoothly placed into a packaging box in a convenient and smooth manner, automatic finishing processing of the clothes is realized, and the requirements of production and use are met.

The invention discloses an active heat dissipation type box-type substation, and the substation comprises a shell; a plurality of supporting blocks are fixedly connected to the lower end of the shell,and a mounting cavity is formed in the shell; transverse cavities are formed in the upper inner wall and the lower inner wall of the shell, and a vertical cavity is formed in the inner wall of the left side of the shell. A wind energy triggering mechanism comprises a rotating shaft which is horizontally and rotationally connected between the two inner walls of the transverse cavity, and the two ends of the rotating shaft penetrate through the inner walls of the two sides of the transverse cavity respectively, and fan blades are fixedly connected to the two ends of each rotating shaft; and anactive heat dissipation mechanism comprises a folding air bag vertically arranged in the vertical cavity, and first magnetic blocks are fixedly connected to the upper end and the lower end of the folding air bag. The substation dissipates heat through wind energy, does not need to use electric energy, is very convenient to use, can sweep dust on the heat dissipation net while dissipating heat, andavoids the situation that the heat dissipation efficiency is affected by too much dust.

The invention discloses a simulation candle. A supporting part of the candle is a supporting shaft a supporting shaft hole is formed in a swing part, and the supporting shaft is sleeved with the supporting shaft hole. The candle has the beneficial effects that due to the adoption of the manner that the supporting shaft and the supporting shaft hole are matched, a flame cover fixed to the swing part swings in a supporting point manner, 360-degree swing can be achieved, and flame swing is more natural and vivid; preferably, the bottom end of the supporting shaft is fixed to the inner ring of a bearing mounted on a supporting frame through a supporting rod, a light source is electrically connected with a magneto-electric induction coil mounted on the swing part, an electromagnetic coil B corresponding to the magneto-electric induction coil is arranged on the supporting frame and is electrically connected with the power source, current generated by magneto-electric induction is used for supplying power to the light source, interference of pulling between the light source and a power source is reduced, the swing part can swing more freely, in the swing process of the swing part, the current generated by the magneto-electric induction is changed along with changes of the swing speed, and after the light source is powered on, the more natural light and dark changes can be formed.

The invention provides a device of acquiring annihilation event occurrence time and a detector. The device comprises a trigger, a time measuring circuit, a summator and a first comparator used for high threshold comparison. The summator is used for performing summation of multipath photoelectron pulse signals generated by photons and inputting the summation result to the first input end of the first comparator. The second input end of the first comparator is connected with the high threshold. The output result of the first comparator acts for identifying an annihilation event. The device also comprises a time identifying path which is used for identifying annihilation time corresponding to each path of electron pulse signals. The identifying signals first identifying the annihilation time and the output signals of the first comparator are combined to activate the trigger. The trigger is used for triggering the time measuring circuit to output time information. The annihilation event occurrence time can be more accurately acquired and the time resolution is higher.

The invention provides a multi-cylinder serial crankshaft type flow power generating device based on the galloping effect to overcome the defects that an existing vortex-induced vibration power generating device is small in amplitude, low in output power and the like. The large amplitude of vibrators is motivated through rough belts, a crankshaft structure of a multi-cylinder internal combustion engine is used for reference, and the high-energy output density and large-scale power generating technology of a vibrator group is achieved. The whole device set mainly comprises the cylinder vibrators with the rough belts, shaft sleeves, connecting rods, crankshafts, a power generator, connectors, springs and the like. The two ends of each vibrator with the rough belt are connected to the corresponding shaft sleeve through the corresponding connectors, and the moving consistency of the vibrators under the same connecting rod is guaranteed. The reciprocated linear movement of multiple columns of vibrators of different phases is converted into the one-way rotation movement of the same crankshaft through a crankshaft transmission mechanism. One end of each crankshaft is connected with the power generator, and mechanical energy is converted into electric energy. According to the device, the centralized collecting of vibration energy of the vibrator group is achieved, the device can be widely applied to collection of river and ocean current energy, and high practicability and economic efficiency are achieved.

This invention relates to an induced polarization spectrum analysis method for acquiring penetration rate of rock. The characteristics are the following: to gather induced polarization weakening spectrum down-well and get induced polarization relax time spectrum through multiple index weakening match; then to calculate the geometric average and arithmetic average of relax time and ground penetration rate curve with materials of porosity logging and experiment constants. It is with low well logging cost, large signal range, high signal-to-noise ratio and long weakening time and high accuracy of polarization ratio measuring.

An ecological crust air purification device comprises a separation chamber. An air inlet and an air outlet are formed in the bottom and top of the separation chamber respectively, and a draught fan is arranged at the air outlet in the separation chamber; the inner wall of the separation chamber is provided with saw-shaped support spokes, and a dust removing screen is arranged on the support spokes which are located at the lowest end of the separation chamber and performs primary filtering on air; a crust plant light-compensating lamp and a mistorizer are arranged in the separation chamber, ecological crusts are fixed on grid plates, and the grid plates are arranged on supporting points; the separation chamber is made of transparent materials, the inner wall of the separation chamber is coated with hydrophobic materials, and the bottom of the separation chamber is provided with a water collecting tank and a base. According to the ecological crust air purification device, a suitable growing environment is constructed, the huge specific surface area of crust plants is utilized, leaf tissue fully adsorbs and absorbs air pollutants in the separation chamber, and air purification is initiatively achieved; the ecological crusts can decorate the environment, the crust layer number can be regulated according to the pollution condition, and the purification effect is enhanced; the cost is low, the maintenance is easy, and the application prospect is wide.

A photographing optical lens assembly, sequentially arranged from an object side to an image side, comprising: the first lens element with negative refractive power having a convex object-side surface and a concave image-side surface, the second lens element with positive refractive power having bi-convex surfaces, the third lens element with positive refractive power having a convex object-side surface, at least one aspherical surface and at least one inflection point on at least one optical surface. Additionally, the photographing optical lens assembly comprises a stop and satisfies condition such as 0.75<SL / TTL<1.1, wherein SL is the axial distance from the stop to the image plane, TTL is the axial distance from the object-side surface of first lens element to the image plane. By such arrangements, the photographing optical assembly can effectively correct the aberration and obtain superior image quality.

The invention discloses a programmable electronic load. The electronic load is measured by AD after amplifying two paths of current signals by superposition. The two paths of circuits have the same structure and consist of an operational amplifier circuit, a drive circuit, a field effect transistor and an operational amplifier superposition circuit which are connected in turn respectively. A DA signal is amplified once, connected with an input end of the operational amplifier circuit with a tensile load current control signal, amplified and then output to a drive amplifying circuit; the signal is output by the drive amplifying circuit and then connected with a gate of the field effect transistor; a source of the field effect transistor is connected with a positive electrode of a power supply, while a drain is connected with a negative electrode of the power supply through current sampling resistors which are connected in series; the two ends of the current sampling resistors are connected with an in-phase input end and an inverting input end of an operational amplifier respectively; and one path of the signal is connected with the drive amplifying circuit after being output by the operational amplifier, and the other path of signal is superposed with another circuit to be amplified to perform AD measurement. By adopting superposition of two paths of current signals, dynamic test of the signal from a high end to a low end can be realized, output of any dynamic load current waveform is realized, and dynamic test speed is improved.

The invention belongs to the technical field of inkjet printing and relates to a method for improving the printing resolution by inducing de-infiltration of ink droplets based on external stimulus. The method comprises the following steps: firstly dispersing inorganic particles or a polymer with external stimulus response in an appropriate substrate to get ink with the external stimulus responsiveness, then spraying the ink with the external stimulus responsiveness through an inkjet printing device, enabling the ink droplets to generate shape change and volume contraction or only generate thevolume contraction due to induction of the external stimulus before curing so as to generate de-infiltration on the substrate, further reducing the deposition area of the ink droplets on the substrate, appropriately curing the ink droplets, and finally improving the printing resolution of inkjet printed contents. The method for improving the printing resolution of the inkjet printed contents is simple to operate, has the characteristics of low cost, no special requirements on equipment, greatly improved resolution and the like.

The invention discloses a shallow transient electromagnetic fine exploration method based on geometric factors: holes are drilled on the ground, one hole is selected as an emitting hole and the otherholes are receiving holes, and an emitting array coil and Z-direction equally-spaced array receiving coils are placed in the emitting hole and are in hard connection with each other; XYZ three-component array receiving coils are placed at equal spacing in the receiving holes, and XYZ three-component array receiving coils are placed at equal spacing on the ground to constitute a rectangular measurement plane; a deep moving device is used to synchronously move the emitting array coil and the array receiving coils for measurement; the response waveforms received by all the array receiving coils are filtered and amplified and then converted into digital quantity which is transmitted to a ground computer; and the waveforms of the array receiving coils are processed. By using the method, a shallow layer can be collected with high density, collected signals can be processed according to the geometric factor theory of the secondary field of electromagnetic induction, and high-precision and high-resolution exploration of spatial distribution of resistivity anomaly bodies can be realized.

The present invention relates to the field of inorganic non-metal material technology. In the upper area of 850-1050 deg.c inside decomposing furnace in cement pre-decomposing system, nozzle of spray gun is set. Ammonia water of 20-25 % concentration and from the storage is pressurized via one stage of pressurizing pump and supplied to the nozzle in the amount determined based on NH3 / NO=1.3-2.0, compressed air in the pressure of 0.5-5 Kg / sq cm is also provided to the nozzle, so that the nozzle jets fine atomized liquid of 10-20 micron average particle size to the said area. The present invention features no limitation of production process and great nitrogen oxide reducing amount.

A vertical BJT with maximum current gain in the photodiode region and its manufacturing method, the vertical BJT includes first and second collector regions located in different epitaxial layers; an emitter region inserted in the first and second collector regions Between; a base region formed on the first collector region and the emitter region, and the second collector region and the emitter region. According to an embodiment, since a BJT may be formed together with a photodiode, and a collector current flows up and down based on a double base structure, the magnitude of current may be increased.