129results about How to "Wide range of applicability" patented technology

The invention relates to an acceleration and deceleration control method aiming at high-speed locating motion of paper-pushing device of paper cutter. When the displacement of controlled moving object is larger acceleration and deceleration control with parabola S-shape is adopted. The parabola S-shape is divided into adding acceleration segment (T1), linear acceleration segment (T2), reducing acceleration segment (T3), uniform speed segment (T4), adding deceleration segment (T5), linear deceleration segment (T6) and reducing deceleration segment (T7). Speed control curves of all adjacent segments are connected smoothly. When the displacement of controlled moving object is smaller half-sine acceleration and deceleration control is adopted. The invention selects acceleration and deceleration control strategy according to displacement of controlled moving object. Quick accurate location of paper-pushing device can be realized in ranges of different displacements. At the same time the acceleration impact in high-speed locating process of paper-pushing device of paper cutter can be eliminated completely or decreased obviously. Calculation is simple and it is favor of improving calculating speed of NC system.

The invention discloses an unmanned aerial vehicle frequency hopping signal detection and identification method based on clustering analysis, and relates to the technical field of unmanned aerial vehicle signal analysis and processing. The method comprises the following steps: acquiring and processing spectral data to obtain an original data set D (that is, an unmanned aerial vehicle frequency hopping signal), detecting the unmanned aerial vehicle frequency hopping signal by adopting a clustering analysis method based on signal similarity feature analysis, and sorting and identifying a detection result. The clustering analysis method comprises the following steps: 1, calculating the distance between each piece of data in an original data set D and other data, forming a distance matrix RS,and finding out the maximum value rmax in all non-zero minimum values ri; 2, setting weights w1 and w2, and calculating a clustering radius R and maximum density data P according to the maximum valuermax and the weights w1 and w2; and 3, classifying the data in the data set D by taking the data P as a center and R as a radius, taking the data which is not successfully classified as a new data setD, and executing the steps 1 to 3 again until a clustering ending condition is met.

The invention relates to the technical field of measurement and analysis of a transmission line impedance spectrum, and particularly relates to a device and a method for evaluating a local defect of acable based on impedance spectrum analysis. The device at least includes a signal generation unit, a signal acquisition unit, an analysis control unit and a data storage unit. The signal generation unit is for transmitting an incident signal to one end of a cable being tested and for transmitting a reference signal, the incident signal and the reference signal are the same in amplitude and phase,the signal acquisition unit is used for synchronous acquisition of the incident signal and a reflected signal, and the reflected signal is a signal which is generated when the incident signal is reflected after passing through the cable being tested. According to the method, the impedance spectrum of the cable being tested in a frequency sweeping band is measured and calculated via a frequency sweeping method, a spectrum function is transformed in a frequency domain, defects can be located in a new transformed domain, and evaluate severity of the defects can be evaluated. Compared with conventional cable fault positioning technologies, the device and the method disclosed in the present invention are advantaged by strong noise immunity, wide range of application, and capability of quantitative evaluation.

The invention provides a site selection method for a wind-solar hybrid power station. The site selection method comprises the following steps: determining a candidate site of the wind-solar hybrid power station; performing micro site selection on a wind generation set; determining the shadow distribution of the wind generation set; determining the mounting position of a photovoltaic array; and verifying and adjusting a site selection result. According to the method, wind energy and solar energy spatial distribution characteristics and the characteristics of wind power plant and photovoltaic power station site selection are considered comprehensively, and wind power plant macro site selection and micro site selection as well as photovoltaic power station site selection and design technology are fused integrally, so that limited land resources and valuable wind energy/solar energy resources are utilized fully, and maximum economic and environmental benefits are achieved.

The invention discloses a microwave-assisted Soxhlet and solid-phase extraction coupling device, a microwave-assisted Soxhlet and solid-phase extraction coupling method and application of microwave-assisted Soxhlet and solid-phase extraction coupling. The microwave-assisted Soxhlet and solid-phase extraction coupling device comprises a microwave-assisted extractor, a Soxhlet extractor, solid-phase adsorbents, an extraction bottle, a reflux condensing pipe and the like, and extraction and purification are synchronously completed by means of coupling microwave-assisted Soxhlet extraction and solid-phase extraction. When in extraction, the solid-phase adsorbents are filled into a Soxhlet extraction device, the extraction bottle is directly placed in the microwave-assisted extractor for extraction after extraction solvents are added into the extraction bottle, analytes are collected into the extraction solvents, and interfering components in samples are adsorbed by the solid-phase adsorbents. High efficiency of microwave-assisted extraction, universality of Soxhlet extraction and high selectivity of solid-phase extraction are combined, the device is simple and convenient in operation, is conveniently used with an analysis instrument, and is suitable for extraction and purification of trace organics in complicated samples.

The invention, which relates to the technical field of radio signal monitoring, discloses a time sequence mode sequence extraction method in radio spectrum monitoring data and a storage method of radio spectrum monitoring data. The extraction method comprises: segmentation processing is carried out on each frame of obtained spectrum data according to a same rule and a plurality of groups of segmented spectrum data at a designated frequency band are obtained based on segmentation; and clustering analysis is carried out on each group of segmented spectrum data to generate K clustering centers, and reduction processing is carried out on every two of K clustering centers to obtain a time sequence mode sequence set of all groups of segmented spectrum data, wherein the sequence mode sequence setincludes a plurality of time sequence mode sequences. According to the invention, problems of small-space quick storage of radio multi-station long-term spectrum monitoring data and high-precision quick retrieving and playback are solved; and the time sequence mode sequence extraction method and the storage method are applied to knowledge discovery of radio massive spectrum monitoring data.

The invention discloses a high-strength physical crosslinking hydrogel and elastomer composition and a preparation method thereof. The method comprises the following steps: uniformly mixing a physical crosslinking agent, water and water-soluble organic polymers to obtain a uniform solution, forming the hot solution, and then cooling to obtain a high-strength physical crosslinking hydrogel product; and removing water in the prepared hydrogen to obtain elastomer. The hydrogen and elastomer composition has excellent tensile strength, elongation at break and elastic modulus. By the preparation method of the high-strength physical crosslinking hydrogel and elastomer composition provided by the invention, crosslinking difficulty is reduced, the range of an application system is wide, controllability is high, and residues of organic monomers or initiators are avoided. The preparation method is simple, the cost is low, and the prepared hydrogel and elastomer composition is uniform, is good in transparency, has excellent mechanical properties, is pure, does not have impurities, does not have toxic or side effects, and has wide application prospects in the fields of the industry, biomedicine and the like.

The invention relates to a novel transmission grinding clamp device which is a set of processing clamping transmission device used for processing rotation surfaces such as excircles, inner circles and end surfaces of various small slender shaft parts in a choke and pump machining industry by common cylindrical grinding machines, internal grinding machines and surface grinding machines. The transmission grinding clamp device comprises a big bottom plate, an adjustable bottom plate, a clamp body, an adjusting wheel bracket, an adjusting wheel shaft, a belt pulley, synchronizing wheels, a synchronous belt, roller shafts, a positioning pin, a lock screw, a T-shaped lock block, a pinch roller bracket, a pinch roller, a pinch roller shaft, a pinch roller arm, a spring, a backing column, a column, a backing arm and a positioning stop pin; the lower part of the big bottom plate is mounted at a working table of the cylindrical grinding machine; an arc T-shaped groove and a positioning pin hole are formed in the upper part of the big bottom plate; the T-shaped lock block is mounted in the arc T-shaped groove; the positioning pin is mounted in the positioning pin hole; the adjusting bottom plate is mounted at the upper part of the big bottom plate, and connected with the T-shaped lock block and the big bottom plate through the positioning pin and the lock screw.

The invention relates to an auxiliary fascia console handrail, a control method of the auxiliary fascia console handrail and a vehicle, and relates to the technical field of automobile interior trim.The auxiliary fascia console handrail comprises a transverse adjusting device, a connecting frame, a longitudinal adjusting device and a handrail body which are fixedly arranged, and the connecting frame is movably assembled on the transverse adjusting device and can transversely move on the transverse adjusting device. The longitudinal adjusting device is arranged on the connecting frame, the handrail body is movably assembled on the longitudinal adjusting device and can longitudinally move along the longitudinal adjusting device, and therefore the connecting frame and the handrail body can be sequentially driven by the transverse adjusting device to transversely move, the handrail body can longitudinally move through the longitudinal adjusting device. and further, a driver can adjust theheight and the front-back position of the auxiliary instrument panel handrail according to the height condition and the comfort degree requirement of the driver so as to improve the comfort degree. Therefore, the auxiliary fascia console handrail is wide in application range, and the comfort degree and practicability of the auxiliary fascia console handrail are improved.

The invention discloses a double-head automatic polishing machine. The machine comprises a frame; a base is fixedly arranged in the center of the frame; a polishing head capable of rotating is arranged on the base, and is driven to rotate by a first motor beside the base; two polishing mechanisms are symmetrically arranged on two sides of the base; and the polishing mechanisms include polishing arms, fixed bases mounted on the polishing arms, second motors on the fixed bases, and polishing wheels driven by the second motors. The double-head automatic polishing machine adopts two polishing mechanisms symmetrically arranged corresponding to polishing heads, can polish workpieces from different angles to achieve high working efficiency, can be provided with polishing wheels with different materials to satisfy different working demands, and is uniform in polishing strength and excellent in polishing effect. The positions of the polishing arms can be adjusted to adapt to various workpieces with complex shapes, in particular, concave surface products; the consumable loss of the polishing wheels can be automatically compensated; and a dust sucking device is additionally provided, so that the application range is wide, and the generality is high.

The invention relates to a back plate wall built-up structure of an electronic system. A circuit board is arranged in containing space of an inner portion of a machine shell. A sliding part is arranged on a relative inner side position of an opening at the back of the containing space. A back cover body of a back plate is covered and located on an opening position of the machine shell. A guide rail part on side boards of two sides of the back plate is embedded in the sliding part to move in a sliding mode. After the machine shell slides down to the location, the bottom of the machine shell is abutted against a dam-board below the back plate and is locked in a lock hole of the machine shell through a locking device of the dam-board to be combined into one. The machine shell from the back cover body can be assembled simply or disassembled quickly through a manual mode instead of using tools. After the machine shell is disassembled, the back cover body can be fixed on a wall surface through a support of the back plate instead of disassembly along with the back cover body, and therefore convenience of replacement is improved, maintenance, cleaning or troubleshooting operations is convenient.

The invention provides an air temperature testing box. The air temperature testing box is characterized by comprising a control system, a box body, and a heater, a refrigerating device, a medium circulation device and an air circulation device which are arranged in an inner cavity of the box body, wherein the medium circulation device is connected with the heater and the refrigerating device respectively; the medium circulation device comprises a sealed circulation tank, a circulation pump and a heat exchanger, which are connected in sequence to form a closed loop; the sealed circulation tankis connected with the refrigerating device; the heater is arranged in the sealed circulation tank and is used for directly heating a medium; the air circulation device comprises a variable frequency draught fan and an air channel plate; the box body is provided with a working region, a working region door, an equipment region and an equipment region door; the heat exchanger, the variable frequencydraught fan and the air channel plate are arranged in the working region. According to the air temperature testing box provided by the invention, a temperature index is higher, the temperature risingspeed is rapid and the working efficiency is high; calibration requirements of various high-precision environment temperature monitoring instruments can be met.

The invention relates to a protection route design method. The method comprises the following steps of 1) immediately judging whether the direction of a protection route triggering section is consistent with that of a protection route or not when a current protection route is in an unlocked state and the section or the route direction of the protection route triggering section is established; 2) judging whether other adjustment establishment of the protection route is satisfied or not, and if so, triggering a protection route establishment command; and 3) triggering and establishing a protection route, ensuring that the section in the protection route range cannot be the protection route in an enemy direction or conflict, and performing locking and the like. Compared with the prior art, the method has the advantages that the function requirements of two configuration conditions of the protection route are met, and meanwhile the function requirements of the protection route with different lengths in different train modes are met too.

The invention discloses a dibenzofuran acrylate compound and a preparation method therefor. The dibenzofuran acrylate compound has a structural formula represented by a formula shown in the description, wherein R1 is H, halogen, alkoxy, nitro or an ester group, R2 is various substituted phenyl, naphthyl, alkyl or heterocyclic aryl, R3 is H, methyl ester or ethyl ester, and R4 is methyl or ethyl. The invention further simultaneously discloses the preparation method for the dibenzofuran acrylate compound. The method comprises the step of subjecting a (E)-2-(2-nitro)phenol derivative, sulfur ylide and propiolate to a [4+1]/[3+2] aromatic cyclization reaction in the presence of a corresponding base at a certain temperature, thereby synthesizing the polyfunctionalized dibenzofuran acrylate compound. The preparation method provided by the invention has the advantages that the operation is simple, the raw materials are readily available, functional groups of reaction are good in tolerance, a plurality of substituents can be simultaneously introduced, the product is easy to separate, and the like.

The invention discloses an aqueous emulsion pesticide, which consists of the following components in percentage by weight: 1.5 to 25 percent of chemical material, 10 to 35 percent of dimethylbenzene, 1.6 to 4.5 percent of isophorone, 1.1 to 6.3 percent of cyclohexanone, 2.6 to 8 percent of tri-styrylphenol polyoxyethyl ether, 0.3 to 2 percent of butylbenisothiazolene, 3.2 to 15.3 percent of pesticide emulsifier No.404, 2 to 10 percent of ethanediol and the balance of water, wherein the chemical material is one or two of abamectin, Emamectin benzoate, flusilazole, deltamethrin, pyrimethanil, imazalil, triazophos, chlorpyrifos, kresoxim-methyl, pyridaben, propiconazole and phoxim. The invention has the advantages of wide application range, stable formulation, obvious synergism and simple production process.