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280results about How to "Not easy to fix" patented technology

AFM (Atomic Force Microscope)-based device for performing nanoindentation measurement on surface of microparticle

The invention provides an AFM (Atomic Force Microscope)-based device and method for performing nanoindentation measurement on the surface of a microparticle. The device is composed of an AFM system, a sheet-shaped plane for holding a sample to be measured is arranged on a sample platform at the top of a scanatron, a double faced adhesive tape for sticking and fixing the sample to be measured is arranged on the sheet-shaped plane, and a nanoindentation needle tip for scanning and nanoindentation operation is fixed in a needle tip holder and arranged above the sample to be measured. When the device is in use, the sample to be measured is adhered to the sheet-shaped plane with the double faced adhesive tape; the sheet-shaped plane is placed on the sample platform at the top of the scanatron; and then the nanoindentation needle tip fixed in the needle tip holder performs scanning and nanoindentation operation above the sample to be measured, wherein the nanoindentation needle tip is a diamond needle tip and has an elasticity coefficient remained between 100N/m and 300N/m and an resonance frequency of 35-65khz. According to the invention, nanoindentation measurement is successfully carried on the surface of a detected powdery microparticle sample with the particle size of 20-80 micrometers.
Owner:CHINA NAT ACAD NANOTECH & ENG

Tunnel portal flexible nose-shaped rolling stone discharging and guiding shed tunnel structure and designing method thereof

The invention belongs to the field of hydraulic engineering and rolling stone prevention and control engineering and relates to a tunnel portal flexible nose-shaped rolling stone discharging and guiding shed tunnel structure and a designing method thereof. The structure comprises multiple lambdoidal prevention and control individuals which are arranged along a slope, every two adjacent prevention and control individuals are in stacked-tile socketed connection or seamless sequential connection, each prevention and control individual comprises two truss structure ceilings which are mounted on a slope energy-consuming damping anchoring base through a supporting structure, and a composite energy-consuming cover plate covers each truss structure ceiling. The designing method aims to determine integral structural size and spatial position of a discharging and guiding shed tunnel and thickness of an energy-consuming damping material of a bearing platform. The tunnel portal flexible nose-shaped rolling stone discharging and guiding shed tunnel structure is simple in structure, unitary in component, standard in size, conducive to factory-scale production and quality control, beneficial to transporting and mounting in alpine canyon areas and good for subsequent maintenance due to modularized structure.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Shed tunnel and shed tunnel design method

The invention provides a shed tunnel structural body. By adoption of the shed tunnel structural body, the defects that the control effect of existing wall type, arch type, cantilever type and column type shed tunnel structures or other shed tunnel structures on high-speed and high-impact rolling stones breaking out in large-scale and grouped modes is limited, the construction cost is high, and the applicability is poor are solved. A shed tunnel is arranged between a roadbed and a mountain slope in a mountainous area, and comprises a Y-shaped frame beam. The top of the Y-shaped frame beam is connected with a downward-concave arc-shaped cover plate. The fixed side edge of the cover plate is tangent to the mountain slope, and the included angle beta between the tangent line of the top end of the free side edge of the cover plate and the horizontal plane is smaller than or equal to 45 degrees. The cover plate of the shed tunnel is of a sandwich structure which is formed by filling the space between an upper skin plate and a lower skin plate with energy dissipating materials. The invention further provides a shed tunnel design method. The shed tunnel design method is used for designing the curvature radius value R of the cover plate, the burial depth value Lp of a structural stand column of a grouted steel pipe pile of the shed tunnel, and the anchor depth values Lb of the side edges of the cover plate of the shed tunnel. According to the shed tunnel, a novel skid-jumping self-throwing removal and guide technical concept is adopted, and the shed tunnel has advantages on the aspect of preventing impact damage of high-altitude rolling stones on the slope to a road. The shed tunnel is simple in structure and high in environment adaptability.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Sine wave disk type permanent magnet generator with novel magnetic pole structure

The invention relates to a sine wave disk type permanent magnet generator with a novel magnetic pole structure, which is particularly suitable for a disk type permanent magnet generator for the power generation of ships. The generator comprises a base, a stator disk, a rotor disk, a magnetic pole fixed on the rotor disk, an end cover, a rotation shaft and a bearing, wherein the magnetic pole consists of an even number of sector pole blocks fixed on the rotor disk; the sector pole blocks are uniformly distributed along the circumference around the center of the rotor disk and fixed on one side of the rotor disk facing to the stator disk; the side surface of one side of each sector pole block facing to the stator disk is in a step shape; a high step is arranged in the middle of the step shape, and low steps are symmetrically and gradually lowered toward the two sides; distance between two adjacent sector pole blocks is equal; the stator disk comprises a stator core and a stator winding; and the stator winding is a centralized integral pitch winding. The sine wave disk type permanent magnet generator with a novel magnetic pole structure, provided by the invention, has the advantages that: the generator has an air-gap flux density waveform with a relatively low sine aberration rate and a back-electromotive force waveform, the motor efficiency is improved, the magnetic pole is simple and convenient to mount and fix, and the wire insertion difficulty of the winding and the motor manufacturing cost are reduced.
Owner:中国船舶重工集团公司第七一二研究所

Preparation method of soil microbial remediation fungicide for salinized soil

The invention discloses a preparation method of a soil microbial remediation fungicide for salinized soil. The preparation method comprises the following steps: step 1, preparing a first composite fungicide and a second composite fungicide; step 2, performing enlarged culture on a salt-tolerant fungus strain; step 3, preparing a coating agent; step 4, mixing furfural residues with mushroom dregs, and performing crushing; step 5, fermenting a first composite fungicide; step 6, performing high-temperature fermentation; step 7, mixing plant ash with bentonite; step 8, mixing the second composite fungicide, and performing low-temperature oxygen consumption stacking fermentation; step 9, performing granulating; step 10, performing vacuum low-temperature drying and screening; and step 11, uniformly scattering a chelating agent and a nitrification inhibitor on the surfaces of the granules, and performing coating. The problems that in the prior art, a salinized soil remediation microbial agent prepared from plant ash, furfural residues and mushroom dregs does not contain various active microorganisms with different functions, the colonization survival performance of the microorganisms is low, and the disease prevention and insect prevention effects are not achieved can be solved.
Owner:SHANDONG SUPER AGRI SCI & TECH

Concentric retaining sleeve of torsional specimen

The invention relates to a torsion sample concentric clamping sleeve for fixing a sample in a torsional testing machine; in the design, a concentric setting circle 3 is added as the assurance of the concentricity of a sample clamping section; a limit crosspiece 5 of the sample clamping section is added as the pushing limit of the sample clamping section; a press block limit wall 4 is added as position limit to a press block, thereby ensuring that the sample is normally mounted and the press block is pressed on the fixed position of the clamping section. The invention solves the problems that the torsion sample is not concentric in the mounting and testing process, the position of the sample clamping section can not be determined and the sample is difficult in clamping, easy to skid and low in testing precision. The torsion sample concentric clamping sleeve provides the torsion sample concentric clamping sleeve with a stable integrated structure, light and simple, convenient and simple fixing and clamping, firm and reliable clamping and high testing precision, which can be widely used in material manufacturers of metal material, nonmetal material, machinery, building material, etc., the testing and authentication of new material research, material mechanics tests of technical authentication departments and universities and colleges and other occasions.
Owner:XIAN TECHNOLOGICAL UNIV

Autofluorescent fault molecular imaging equipment compatible with magnetic resonance

The invention discloses autofluorescent fault molecular imaging equipment compatible with magnetic resonance. The autofluorescent fault molecular imaging equipment comprises optical imaging equipment and a guide rail; the optical imaging equipment comprises a shielding case and an optical camera obscura, wherein an imaging device is arranged inside the optical camera obscura; the two sides of the guide rail are located in existing medical magnetic resonance equipment and the optical imaging equipment respectively, the guide rail is provided with a carrying platform used for carrying a small animal, and the carrying platform can slide on the guide rail; the shielding case isolates mutual interference between the magnetic resonance equipment and the optical imaging equipment; the carrying platform guarantees that the small animal does not need to be hung and the posture of the small animal does not change in the magnetic resonance imaging process and the optical camera process. A two-sided reflector and rotating wheels are adopted so that the optical imaging equipment can acquire multi-angle multi-spectral autofluorescent data in one plane. High-precision three-dimensional imaging is realized based on the autofluorescent data in combination with structural data provided by the magnetic resonance equipment.
Owner:XIDIAN UNIV

Novel multi-element ecological chelate fertilizer and making method thereof

The invention discloses a novel multi-element ecological chelate fertilizer and a making method thereof. The fertilizer comprises urea, ammonium sulfate, monoammonium phosphate, potassium sulfate, potassium nitrate, anhydrous magnesium sulfate, nitrate tetrahydrate, 0.6-1.2 parts of zinc sulfate heptahydrate, ferrous sulfate heptahydrate, copper sulfate pentahydrate, boric acid, a synergistic chelating agent (citric acid+ammonia water+glycolic acid) and a biodegradable chelating agent trisodium ethylenediamine disuccinate. Through appropriate compatibility of the synergistic chelating agent and EDDS (ethylenediaminedisuccinic acid), the compound chelating agent is biodegradable, the chelating properties are significantly improved, trace elements in the fertilizer are subjected to two chelating reactions to form a water-soluble reticular chelate, and then the water-soluble reticular chelate and macroelements nitrogen, phosphorus and potassium are subjected to granulation, thus obtaining the product. The product has the advantages of wide pH application range, good water solubility, balanced nutrients and easy absorption, avoids nutrient deficiency symptom caused by antagonism between nutrient elements, increases crop yield, improves the quality of agricultural products, and enhances the fertilizer utilization rate by 10-15%.
Owner:辽宁津大肥业有限公司

Water-soluble protein peptide fertilizer

The invention provides water-soluble protein peptide fertilizer. A preparation method of the water-soluble protein peptide fertilizer comprises the steps that A, firstly, bean pulp is selected as raw materials, enzyme is added for preparing soybean protein peptide hydrolysate, then the temperature is reduced to 50 DEG C to 60 DEG C after warming and enzyme deactivation; B, one or more of zinc salt, manganese salt, ferric salt, calcium salt and magnesium salt of medium trace elements are added for a chelation reaction, and the reaction time ranges from 1.5 hours to 2.5 hours; C, reaction products are concentrated into a concentrated solution of 40% to 60%; D, one or more of nitrogenous fertilizer, phosphatic fertilizer and potash fertilizer are added, the reaction continues to be carried out for 1-1.5 hours at the temperature of 50 DEG C to 60 DEG C, and a liquid product is obtained. The water-soluble protein peptide fertilizer is mainly composed of various elements and protein peptide, and protein peptide and the various medium trace elements are chelated, so that nutritional ingredients are not likely to run off or be fixed by soil; the utilization rate can be increased, the nutrition-allocated proportion is more comprehensive, the fertilizer efficiency is fast and lasting, the soil and surrounding environment cannot be damaged, and agro-ecological balance can be maintained.
Owner:YANTAI HONGYUAN BIOLOGICAL FERTILIZER CO LTD

Locking-unlocking delivery mechanism suitable for rotary wing type unmanned aerial vehicle carrying information collection device

The invention discloses a locking-unlocking mechanism suitable for a rotary wing type unmanned aerial vehicle carrying information collection device. The mechanism comprises a cam disc, a locking assembly, a base and an objective table, the base is sleeved with the objective table, the cam disc is sleeved with the base, and the cam disc and the locking assembly are matched to enable the objectivetable and the base to be locked or unlocked. According to the locking-unlocking mechanism suitable for the rotary wing type unmanned aerial vehicle carrying information collection device, the problemsthat an existing unmanned aerial vehicle delivery technology and the device carry out delivery through a four-rod mechanism or a conveying belt or screw joint of a thread rod, the delivery function is not stable, or completely fails, the environment influence is easily caused, wear is prone to happening, and the information collection device is not prone to being mounted are solved, and the delivery device has the advantages of being stable, durable, not prone to wear, not prone to being affected by the environment, capable of conveniently fixing the information collection device, simple, lowin cost and the like.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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