62 results about "Mass reduction" patented technology

An object is to provide a resin composition having a high permittivity and a low dissipation factor, and having excellent heat resistance and moisture absorption and heat resistance, and suitably used for producing an insulation layer of a printed wiring board, and a prepreg, a resin sheet, a laminate, a metal foil-clad laminate, and a printed wiring board obtainable by using the resin composition. The resin composition of the present invention contains (A) a surface coated titanium oxide in which a mass reduction rate in heating from 30° C. to 300° C. at a heating rate of 10° C. / min is 0.5 mass % or less, and (B) a thermosetting compound.

Elbow erosion monitoring is of great significance to the safety of pipeline systems and maintenance personnel. A percussion method is used to monitor pipe erosion. Under different erosion degrees, the mass reduction of the elbow is measured by high-precision electronic scale and the residual thickness of the elbow is detected by telescoping gauge. Machine learning algorithm, the K- Nearest Neighbor and recurrent network method are employed to identify the different wall thickness level and erosion mass level.

The invention relates to the technical field of flywheel energy storage systems, in particular to a flywheel energy storage rotor topology optimization method and system. Finite element analysis software is used for conducting simulation analysis on the initial shape of the rotor, stress distribution data are obtained, a stress threshold value is set according to the stress distribution data, a small internal stress area of the rotor is recognized, and an optimizable area is marked; according to the method, void parameters are designed in an optimizable area based on an SDEA optimization SwinTransform algorithm, so that rotor structure optimization is realized; and performing performance verification on the optimized rotor structure to obtain optimization effect data. A unified coding mode is adopted to represent cavity parameters, a comprehensive fitness function containing structural strength, mass reduction and process realizability is established, and the effects of remarkably reducing rotor mass, remarkably improving stress distribution and remarkably improving limit rotating speed and energy storage density are achieved through balance optimization under multi-target constraint. The problems of large rotor mass, heavy magnetic bearing burden, stress concentration and the like in the traditional uniform disc design are effectively solved.

The invention provides a silane cross-linkable resin composition, a silane cross-linked resin molded article using the silane cross-linkable resin composition, and an electric wire. The silane-crosslinkable resin composition contains at least one silanol condensation catalyst represented by a specific formula and having a mass reduction rate of less than 10.0% when heated at 100 DEG C for 30 minutes, and does not contain a tin-containing silanol condensation catalyst.

This invention relates to pneumatic radial tires which exhibit improved rolling resistance (provide better fuel economy) and improved performance characteristics. More particularly, this invention relates to the structure of radial ply tires for heavy load vehicles such as trucks, buses, and the like. It is based upon that finding that a defined profile of the outer surface of the sidewall portion can lead to a tire with reduced rolling resistance and a reduced generation of heat. The reduction in rolling resistance is obtained by a specific shaping of the bead portion of the tire which allows a bead mass reduction with an acceptable trade-off with regard to bead durability.

A turbine blade encloses a root (142, 302) with a shaft (148, 310) that has a support pillar (322) extending from the underside of the shaft (148, 310) to an end of a turbine blade platform (134, 304). The support pillar (322) provides increased structural integrity for a given shaft mass (148, 310) and enables mass reduction. With a wall of the shaft (148, 310) and an underside (320, 330) of the platform (134, 304), the support pillar (322) defines a pocket (320, 330) below the platform (134, 304) that can be part of a blade cooling circuit. The pocket (320, 330) can be located on an intake side or a pressure side of the root (142, 302) and can enclose sections or pockets (320, 330) on both sides of the root (142, 302) which can be in fluid communication with each other.

The utility model relates to the technical field of stay cable damping, in particular to a rigid auxiliary cable-double TMD combined damping device used for controlling vibration of parallel cable plane stay cables, which comprises two stay cables, the two stay cables are symmetrically distributed along a transverse axis, each stay cable is fixedly connected with a clamp, the two clamps are oppositely arranged, and the two clamps are arranged on the two sides of the stay cable. One end of each of the two clamps is fixedly connected with a first spring, and the other end of each of the two first springs is fixedly connected with a mass block. The stay cable has the advantages that energy generated when the mass block moves is reduced through the high-damping rubber, damping is increased, stability is improved, the stability of the stay cable is further improved through cooperation of the installation piece, the sliding rod, the second spring and the third spring, operation is easy, practicability is improved, and the stay cable is suitable for popularization and application. Dust and impurities in the air can be attached to the high-damping rubber when the high-damping rubber is exposed for a long time, and the vibration reduction effect of the high-damping rubber can be affected if the high-damping rubber is not cleaned.

Provided is a photoelectric conversion element comprising a first electrode film (A), a photoelectric conversion layer (B), an auxiliary layer (C) that includes a compound α, and a second electrode film (D), wherein a change rate rd3 represented by formula (i) is 0.020-50.0. Formula (i): rd3=d3a / d3b. In the formula, d3a is a dark current (external bias 3V) after heat treatment under the following conditions, and d3b is a dark current (external bias 3V) without heat treatment. The conditions are that heating is performed for 1-3000 minutes at not lower than 450°C below a reference temperature and not higher than 10°C below the reference temperature, the reference temperature being a 5% mass reduction temperature of the compound α as measured at a pressure of 0.10 MPa, with nitrogen at 200 mL / min, a temperature of 20-550°C, and a temperature increase rate of 10°C / min.

Disclosed are a resist underlayer composition, and a method of forming a pattern using the resist underlayer composition. The resist underlayer composition includes a polymer including a structural unit represented by Chemical Formula 1, a structural unit represented by Chemical Formula 2, or a combination thereof, a photoacid generator having a mass reduction rate of about 0% after 3 minutes from the time of measurement during thermogravimetric analysis (TGA) at 205° C. in an air atmosphere (air gas), and a solvent. The definitions of Chemical Formula 1 and Chemical Formula 2 are as described in the specification.

A microelectromechanical device for generating a fluid pressure using a displacer unit. The displacer unit has a movable displacer element, which can be deflected to generate a fluid pressure using a drivable connecting element acting on the displacer element. The connecting element has a base structure and a coupling structure connected to the base structure for connecting the connecting element to the displacer element. The base structure includes a mass reduction portion with a material recess. A microelectromechanical loudspeaker having such a microelectromechanical device is also described.

The invention belongs to the field of aircraft drop simulation and test, and particularly relates to an aircraft sinking speed determination method and system under the condition of no lift force and no mass reduction, and the method comprises the steps: determining parameters needed by the dynamics simulation of an aircraft landing gear according to a test working condition; determining the mechanical relationship of the undercarriage according to the parameters required by simulation, and building a full-aircraft landing simulation model; performing lift simulation on the full-aircraft landing simulation model, and determining a vertical ground load of the aircraft landing gear; extracting a vertical ground load of an aircraft landing gear, performing lift-free drop simulation on the full-aircraft landing simulation model, and iteratively determining a putting height according to the ground load; and calculating the sinking speed of the full-aircraft drop test according to the putting height. Compared with the prior art, the method has the advantages that lift force simulating loading equipment is omitted, initial launching attitudes such as the pitch angle, the roll angle and the yaw angle of the aircraft are fully considered, the method can be used for guiding initial launching of a drop test, the large overload risk of free falling impact is reduced, and the number of times of adjusting the launching height can be reduced.

The present invention provides copper particles which can be used for various applications even after the copper particles themselves are exposed to the atmosphere.　Provided are composite copper particles which include copper particles and an organic component, wherein: the composite copper particles have a value of of 100 nm or more and 600 nm or less as an average particle diameter that is measured with a scanning electron microscope; the organic component contains at least a carboxylic acid or a salt thereof, and a polymer dispersant; the content of the organic component is 0.3% by mass or more to 6.0% by mass or less with respect to the copper particles; and the polymer dispersant has an acid value of 60 mgKOH / g or more, and a mass reduction rate in the atmosphere of 70% or more under the condition that the temperature thereof is raised from 30°C to 250°C at a heating rate of 10°C / min by means of a thermogravimetric-differential thermal analyzer.

A structure for manufacturing a cast article includes an organic component, at least a portion thereof being an organic fiber. The structure has a mass reduction rate of 1 mass % or greater to less than 20 mass % when heated under nitrogen atmosphere at 1000° C. for 30 minutes. The cast-article-manufacturing structure includes an inorganic particle. The cast-article-manufacturing structure includes, as the inorganic particle, a first inorganic particle having a predetermined shape and / or physical property, and a second inorganic particle having a predetermined shape and / or physical property different from the first inorganic particle. In addition thereto or instead thereof, the cast-article-manufacturing structure has a maximum bending stress of 9 MPa or greater measured in conformity with JIS K7017, and a bending strain of 0.6% or greater at the maximum bending stress.

Provided are a silane crosslinkable resin composition containing at least one kind of silanol condensation catalyst represented by a specific formula and having a mass reduction rate of less than 10.0% when heated at 100° C. for 30 minutes, and not containing a tin-containing silanol condensation catalyst, and a silane crosslinked resin formed body and an electric wire using the silane crosslinkable resin composition.

Provided is an optical filter including: a matrix including an inorganic substance having a water solubility of 0.4 g / 100 g-H2O or less; and a wavelength selective absorption material dispersed in the matrix. The optical filter absorbs an optical component having a wavelength of any band in a target wavelength band of 0.8 to 20 μm. A temperature at which a mass reduction rate of the wavelength selective absorption material is 10% by mass when heated in air from 100° C. at a rate of 10° C. / min is 900° C. or less. An apparent density of the optical filter relative to a true density of the matrix is 70% or more. In the target wavelength band, a wavelength bandwidth where a linear transmittance per 1 mm thickness of the optical filter is 30% or more is 50 nm or more.

Aspects of the present disclosure relate to a set of co-aligned mass reduction openings in a laminated stack for rotors. These co-aligned mass reduction openings reduce the mass and inertia of the rotor while avoiding negative effects on other characteristics of the rotor. In particular, the laminated stack may also include other co-aligned openings that are fluidly coupled together to form a fluid channel that allows a cooling fluid to flow therethrough. The set of co-aligned mass reduction openings may be blocked to prevent cooling fluid from flowing into the mass reduction openings, as such undesired flow may reduce cooling efficiency and affect rotor balance. The rotor may be disposed in a motor of an electric vehicle.

The present invention relates to a hydrosilylation-curable organopolysiloxane composition, which contains: an organopolysiloxane and an organohydrogenpolysiloxane that are crosslinked by a hydrosilylation reaction; a non-reactive organopolysiloxane resin having a mass reduction rate of 2.0 mass% or less when exposed at 200 DEG C for 1 hour; and a reaction product of any alkali metal silanolate with at least one chloride and / or carboxylate of cerium. The composition provides a cured product which has low elastic modulus, low stress, high strength, cold resistance and excellent transparency, maintains these characteristics even under high-temperature conditions for a long period of time by adding a cerium compound, and is particularly less susceptible to cracking, peeling and the like even when a strong temperature gradient occurs inside the cured product.

An autonomous vehicle in various embodiments, comprises a body, at least one releasable component, a decoupling mechanism configured to decouple the at least one releasable component from the body, processing circuitry comprising one or more processors and memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising detecting a triggering event and, responsive to detecting the triggering event, causing the decoupling mechanism to decouple the at least one releasable component from the body. In some embodiments, decoupling the at least one releasable component results in a mass reduction of the vehicle, which may, for example, mitigate and impact force between the vehicle and a second object, such as another vehicle. In various embodiments, the triggering event may be an impact, loss of control, or other event.

Disclosed are a high-purity gallium crystallization control method and apparatus, a crystallization system, a computer-readable storage medium, and an electronic device. The method comprises: acquiring the current pressure at the inner bottom of a crystallization tank; determining the current mass of liquid metal gallium in the crystallization tank on the basis of the current pressure; determining the mass reduction amount of the liquid metal gallium in the crystallization tank within the current period of time on the basis of the current mass, and determining the current crystallization rate of the liquid metal gallium in the crystallization tank on the basis of the mass reduction amount; and determining whether the current crystallization rate is equal to a preset crystallization rate, and if not, controlling the temperature field in the crystallization tank on the basis of a magnitude relationship between the current crystallization rate and the preset crystallization rate.

This invention relates to a mass-optimized geogrid system and method for stabilizing regolith and other granular soils in extraterrestrial and extreme Earth environments. Mass reduction is achieved both locally—within individual geogrid layers through optimization of lattice geometry, variable mesh density, and reinforcement at stress concentrations—and globally, by varying the spacing and distribution of layers according to structural demands. The geogrid may be fabricated from materials that are locally sourced or compositionally traceable to in-situ resource utilization (ISRU) processes in environments such as the Moon, Mars, or terrestrial polar and desert regions where conventional construction materials are limited or costly to transport. The method includes restructuring the regolith by size-sorting and compaction to produce a particle-size distribution proportionally matched to the mesh openings, enhancing mechanical interlock and shear resistance. Structural efficiency can be tuned and verified through physical testing and finite-element analysis for scalable, repeatable construction.

Carbonaceous substance-coated graphite particles are disclosed that can be used as a negative electrode material for a lithium ion secondary battery. The carbonaceous substance-coated graphite particles include graphite particles and a carbonaceous substance covering at least part of surfaces of the graphite particles. A mass reduction starting temperature when the carbonaceous substance-coated graphite particles are heated in a water vapor atmosphere is 800° C. to 980° C., and a content of the carbonaceous substance is 0.1 to 15.0 parts by mass with respect to 100.0 parts by mass of the graphite particles.

A turbine blade includes a root with a shank having a buttress extending from the shank bottom to an end of a turbine blade platform. The buttress provides increased structural integrity for a given shank mass, allowing mass reduction. With a shank wall and bottom of the platform, the buttress defines a pocket below the platform that can be part of a cooling circuit of the blade. The pocket can be on a suction side or pressure side of the root and can include portions or pockets on both sides of the root that can be in fluid communication with one another.

The invention relates to a microelectromechanical device (1) for generating fluid pressure with a displacement unit (2), wherein the displacement unit (2) has a movable displacement element (3) which can be deflected to generate fluid pressure by means of a driveable connecting element (5) acting on the displacement element (3), wherein the connecting element (5) has a base structure (6) and a coupling structure (7) connected to the base structure (6) for connecting the connecting element (5) to the displacement element (3), wherein the base structure (6) has a mass reduction section (11) with a material recess (12). The invention also relates to a microelectromechanical loudspeaker with such a microelectromechanical device (1).

The utility model belongs to the technical field of textile machinery, and particularly relates to a water pump connecting rod structure of a water jet loom, which comprises a joint and a connecting rod, the joint is of an annular structure, a weight reducing groove is arranged on the inner wall of the joint, a cavity is arranged in the connecting rod, damping materials are filled in the cavity, a sealing piece is arranged at the bottom of the connecting rod, and the sealing piece is connected with the connecting rod. The weight reducing groove is formed in the inner wall of the connector, the effect of reducing the mass of the connector can be achieved, the influence caused by mass and inertia is reduced, the damping effect is achieved, meanwhile, the damping material is filled in the cavity, the damping effect of the connecting rod is further enhanced, the influence of vibration on a water pump can be reduced, and the service life of the water pump is prolonged. The service life of the water pump is prolonged.

The invention relates to a heating method, a heating device and a storage medium, and relates to the technical field of household appliances. The heating method comprises the following steps: heating liquid in a container; measuring the mass of the liquid in the container, and obtaining the mass reduction rate of the liquid in the container; judging whether the liquid in the container boils or not according to the mass reduction rate; and if the liquid in the container boils and the boiling duration of the liquid reaches a preset duration, stopping heating the liquid. Whether liquid in the container boils or not is judged by measuring the mass of the liquid in the container, a steam switch does not need to be arranged, and a steam channel does not need to be arranged at the kettle body. The structure of the inner cavity of the heating device is simplified, so that the effects of reducing the manufacturing cost of the heating device and reducing drinking water pollution caused by the steam channel can be achieved.

Provided is a copper particle that can be used for various applications even after exposure to the atmosphere by itself. A composite copper particle containing a copper particle and an organic component, wherein the composite copper particle has a value of 100 nm or more and 600 nm or less as an average particle diameter measured by a scanning electron microscope, the organic component contains at least a carboxylic acid or a salt thereof and a high-molecular dispersant, the content of the organic component is 0.3 mass% or more and 6.0 mass% or less with respect to the copper particle, the high-molecular dispersant has an acid value of 60 mgKOH / g or more, and the mass reduction rate in the atmosphere when warmed from 30°C to 250°C at a temperature increase rate of 10°C / min is 70% or more using a thermogravimetric differential thermal analysis device.

Provided is a protective sheet provided with a protective layer to be bonded to a surface to be protected of an electronic device having the surface to be protected, or to a surface to be protected of an electronic device connected body obtained by connecting a plurality of electronic devices, the mass reduction rate WW of the protective layer after being immersed in water at 25 DEG C for 180 seconds is 0-30 mass%, and the mass reduction rate WS of the protective layer after being immersed in an alcohol aqueous solution at 25 DEG C having an alcohol concentration of 55 mass% for 180 seconds is 40-100 mass%.

The application provides a reinforcing method and device for super-high external hanging wall, the fixing device comprises a hoisting mechanism and a carrying mechanism, the carrying mechanism is fixed on a base, a gear engagement set is arranged in the cavity of the carrying mechanism, one end of the gear engagement set is located inside the cavity, the other end extends to the outside of the cavity through a through hole of the carrying mechanism, a gear swing rod is arranged at the inside end, a rotation fixing rod is arranged at the other end, the rotation fixing rod rotates synchronously when the gear swing rod rotates under force, a movable base is arranged at the lower part of the base, a groove is arranged at the upper part of the movable base, a spring is fixed in the groove, the base moves upward under the elastic force when the external hanging wall is taken out, a moving key is arranged at the lower part of the movable base, the moving key slides in the moving groove at the upper part of the lower body, and the movable base slides synchronously. The application solves the problem of inaccurate welding when the external hanging wall is installed by converting the mass reduction into elastic force and the linkage device of the gear set when the external hanging wall is unloaded, manual correction is saved, and the device is safer and more reliable.

The invention relates to the technical field of I-beam connecting rods, in particular to an I-beam connecting rod section parameter determination method and device, electronic equipment and a medium. The method comprises the following steps: acquiring an initialization parameter group corresponding to the cross section of a rod body in a target I-beam connecting rod; calculating an initial mass reduction amount and an initial safety coefficient corresponding to the target I-beam connecting rod based on the initial parameter group and by means of a preset mathematical formula; on the basis of the initial mass reduction amount and the initial safety coefficient, updating the initialized parameter set to obtain multiple updated parameter sets corresponding to the target I-beam connecting rod; verifying each updated parameter group, and updating each updated parameter group based on a verification result to obtain a standby parameter group; and determining the standby parameter group as a final parameter group corresponding to the cross section of the rod body in the target I-beam connecting rod. Optimized closed loop of the cross section parameters of the whole rod body is completed, the accuracy of the determined cross section parameters of the I-beam connecting rod is guaranteed, and then the engineering practicability of the target I-beam connecting rod is guaranteed.