41results about How to "Speed ​​up the practical process" patented technology

The invention discloses a direct-current droplet generator and a preparation method thereof. The generator is characterized in that the generator has a structure in which all electrodes are placed above a solid surface and do not need to be grounded, so that the direct-current liquid drop generator can be constructed on any surface including a block body, a thin film and a coating; the droplet generator structure comprises a solid hydrophobic surface, an upper electrode, a collector pin, a lower electrode, an upper electrode lead and a lower electrode lead. The solid surface is a hydrophobic surface made of any artificial or natural materials, the upper electrode and the lower electrode are placed on the solid surface at a certain interval, the current collecting needle can be of an independent conductive tip structure and can also be directly machined on the electrode, and the generator can collect electric energy by impacting the surface through liquid drops. Compared with the prior art, the direct-current droplet generator can be constructed on any solid surface, the collected liquid mechanical energy is converted into the electric energy with the direct-current characteristic, and the direct-current droplet generator has the advantages of being simple in preparation process and low in cost. The open-circuit voltage of the direct-current liquid drop generator is up to kilovolt, a power management circuit is not needed, and the direct-current liquid drop generator can directly drive micro electronic devices to work or charge an energy storage unit. The structure of the direct-current generator has the functions of power generation, rectification and energy storage at the same time, a new technology based on solid-liquid interface water energy collection is developed, and the practical progress of water energy collection is greatly accelerated; meanwhile, the device is also a sensor or a probe. Due to the fact that the device achieves effective separation of charges, the device has extremely high application value in the aspects of droplet energy collection and self-driven sensing.

The invention belongs to the field of third-party IP core trusted willfulness verification, in order to propose a new hardware Trojan horse method, improve the detection efficiency of the hardware Trojan horse, and effectively solve the limitation problem of the reference model in the actual test process by distributed detection, thereby further promoting the practical process of IP core securityvulnerability detection. Therefore, the technical proposal adopted by the invention is that the hardware Trojan horse side channel analysis method based on the multi-IP core determines the mutual deduction relationship among the multi-IP cores according to the side channel analysis technology, and when the side channel information of one of the IP cores is different from the ideal side channel information, the hardware Trojan horse is determined to exist. The invention is mainly applied to IP core trusted willfulness occasions.

The invention provides a preparation method of ultra-long highly-orderly TiO2 micro/nanoscale fiber. The preparation method includes following steps: (1), dissolving PEO used as a fiber forming formwork in a solvent, adding tetrabutyl titanate, stirring and standing to obtain a spinning solution, wherein molecular weight of PEO is 1000, 000-5000, 000; (2), subjecting the spinning solution to electrostatic spinning using a drum as a fiber collector to obtain highly-oriented Ti(OC4H9)4/PEO composite fiber; (3), heating and annealing the composite fiber through a program. The preparation method is simple to operate, low in equipment requirement and simple in preparation process, preparation of inorganic fiber which is arranged in a highly-orderly manner is enabled to be simple and easy to operate, and the preparation method is easy in mass production and high in experiment repeatability.

The invention discloses a method for eliminating the torsion inertia force of a double-rotor piston engine. The double-rotor piston engine comprises two sets of power units each of which consists of a power cylinder assembly and a differential driving assembly connected with the power cylinder assembly; and a reverse synchronization assembly for offsetting the torsion inertia force produced when parts in the power units do non-uniform rotation is arranged between the two sets of the power units. The double-rotor piston engine designed by the method has no torsion inertia force and has the advantages of various power output modes, reliability and high adaptability, and transmits stably.

The invention discloses a mulberry transgenic method based on agrobacterium tumefacien mediated hybernacle injection. According to the method, a trace amount of agrobacterium tumefacien engineering bacterium conversion liquid containing target gene recombinant vectors is directly injected into mulberry hybernacles to sprout; the hybernacles infect hybernacle top end meristematic tissue meristematic cells and hybernacle axillary bud meristematic cells to obtain successfully converted bud meristematic cells; the bud meristematic cells differentiate and grow to obtain transgenic transgenic branches and buds; then, transgenic grafting transgenic seedlings or transgenic mulberry seeds are obtained through the mulberry grafting vegetative propagation or female mulberry fruit and male flower hybridization sexual propagation technology, and further, a great amount of mulberry transgenic seedlings and seeds can be obtained. The method has the advantages that complicated steps such as tissue culture and requirements on sterile operation environment and the like are avoided; the operation is directly carried out on plants, and can be completed in natural environment; the cost is low; the operation is simple; the technical skill can be easily mastered; the repeatability is good; the conversion efficiency is higher; the transgenic plants, seedlings and seeds suitable for the local wild natural conditions can be fast obtained; the method is applicable to various mulberry varieties, and belongs to a novel efficient and practical mulberry transgenic method.

The invention discloses a slight abrasion measurement method based on shelter processing technology, which comprises placing a large sample and a small sample in a vacuum processing chamber, sheltering the partial surface of the large sample by placing the small sample on the surface of the large sample, performing surface treatment on the large sample and the small sample, forming a processed area and an unprocessed area on the surface of the large sample, and then removing the small sample; taking the large sample and the small sample out of the vacuum processing chamber, and using a pin plate abrading machine or a reciprocating abrading machine to abrade the unprocessed area and the processed area which are formed on the large sample to form abraded marks; and adopting an interference microscope to measure, and sending the measurement data to a digital camera or a computer. The slight abrasion measurement method can reduce effects of volatility of pretreatment conditions and vacuum processing conditions, can improve processing efficiency on the vacuum surfaces of materials, improve repeatability of processing technology and quickens practical process of processing technology.

The invention discloses a method for generating hydrogen by hydrolyzing lithium borohydride and a device used for the method. The method comprises the following steps of: dissolving lithium borohydride in an organic solvent which can not be adsorbed on a proton exchange membrane or a fuel cell membrane to obtain an organic saturated solution or an organic suspension, and filling liquid water to regulate the concentration of lithium borohydride so as to realize the regulation of the speed of releasing hydrogen in reaction until the content of theoretical hydrogen in lithium borohydride is completely released finally. The device comprises a liquid water storage room (1), a water feeding capillary (2), a hydrolysis reaction room (3), a gas feedback pipeline (5) and a port (4) which is butted with the fuel cell, wherein one end of the water feeding capillary (2) is communicated with the liquid water storage room (1), and the other end of the water feeding capillary (2) is arranged in the hydrolysis reaction room (3); and one end of the gas feedback pipeline (5) is inserted in the liquid water of the liquid water storage room (1), and the other end of the water feeding capillary (2) is communicated with the hydrolysis reaction room (3). The method is high in hydrogen release efficiency and stable and controllable in hydrogen release process.

The invention discloses a quick mapping method for normally open defects of a nano CMOS (Complementary Metal Oxide Semiconductor) circuit represented by a matrix, which comprises the following steps:defining the normally open defects of three nano CMOS circuits, and constructing a given nano CMOS circuit into a nano CMOS matrix to be represented according to the connected domain constraint and circuit defect condition of the nano CMOS circuit; then, according to the fan-in and fan-out relationship among the nodes in the logic circuit to be mapped, constructing the logic circuit into a logic matrix for representation; then, establishing matching rules of the two matrixes, and finishing searching of matchable elements between the matrixes through an evolutionary algorithm; and finally, carrying out element matching on the two matrixes to finish unit mapping. According to the invention, the circuit mapping complexity can be simplified, the circuit solving efficiency and the solving scaleare improved, the mapping area is reduced, and the influence of the normally open defect on the logic function of the nano CMOS circuit is quickly eliminated under the condition of improving the unitutilization rate and the mapping success rate, so that the fault-tolerant mapping of the normally open defect of the nano CMOS circuit is quickly and effectively completed.

The invention belongs to the field of integrated circuit trustworthiness and further promotes the practical process of hardware Trojan for improving the precision of side channel analysis. The invention relates to a hardware Trojan detection method based on local area circuit mutual reference. The method comprises the following steps that (1) a circuit area is divided; (2) a side channel test platform is established; (3) the side channel information of M sub-regions is tested under the excitation of the same test vector set; (4) regional circuit relationship is determined; (5) hardware Trojanis verified; (6) loop iteration is verified. The method is mainly applied in the field of integrated circuit trustworthiness detection.