13 results about "Equilibrium moisture content" patented technology

The invention relates to a tobacco leaf moisture change capability evaluation method and application thereof, and the evaluation method comprises the steps: (1) respectively establishing scatter diagrams of the change of the dry basis moisture content y of tobacco leaves along with the humidity x at n temperature points, fitting by applying an equation y = d + m * exp (-kx), respectively obtaining constants m, d and k, and adding m and d to obtain the equilibrium moisture content a of the tobacco leaves at each temperature point when the humidity is 0; wherein n > = 3; and (2) establishing a scatter diagram of the equilibrium moisture content a and the temperature t when the humidity of the tobacco leaves is 0, fitting by applying an equation a = f * t + c to obtain a theoretical moisture content c and a constant f under absolute zero degree and absolute drying conditions, and evaluating the moisture change ability of the tobacco leaves by taking c as a characteristic value. According to the evaluation method, the influence of thermodynamics and dynamics is comprehensively considered, more scientific and comprehensive evaluation on the tobacco leaf moisture change capacity is achieved, and the method is high in accuracy and precision and can be widely applied to screening of tobacco leaf raw materials.

A drying storage according to the present invention can be carried or moved by a user or installed as a built-in in the user's residence, and can maintain an object in a dried state after drying the object to be dried, so that the convenience of use can be improved, wherein a desiccant material with an equilibrium moisture content suitable for the temperature and humidity conditions in which the drying storage is used, is applied so that the inside air of the drying storage is inhaled during a dehumidification operation to allow sufficient dehumidification and the outside air of the drying storage is inhaled during a regeneration operation to enable sufficient regeneration of the desiccant material.

A plurality of ventilation elements, vents, slots, or gap elements or similar features that are applied to, or machined into, one or more sides or faces of exterior siding products. When the exterior siding product is installed, the ventilation elements, vents, slots, or gap elements or similar features provide a built-in air and water gap to facilitate and increase water drainage and air circulation behind the siding or panel, thereby minimizing water storage in the space behind the product and lowering the equilibrium moisture content of the siding itself. The ventilation features are incorporated into the corresponding product in-line or during the manufacturing process, and do not require any further work during assembly or construction on-site (e.g., furring strips or other similar drainage mechanisms are not needed).

The present application relates to a kind of evaluation methods of tobacco moisture change ability and its application, the evaluation method includes: (1) respectively establishing the dry basis moisture content y of tobacco at n temperature points with humidity x changes scatter diagram, equation y=d+m×exp (-kx) is used to carry out fitting, respectively constant m, d and k are added, the equilibrium moisture content a of tobacco at each temperature point under 0 humidity is obtained;Wherein n≥3;(2) establish the equilibrium moisture content a of tobacco under 0 humidity with temperature t scatter diagram, equation a=f×t+c is used to carry out fitting, obtain the theoretical moisture content c under absolute zero, absolute dry condition and constant f, and with c as characteristic value, the moisture change ability of tobacco is evaluated.The evaluation method used in the present application comprehensively considers the influence of thermodynamics and dynamics, realizes more scientific and comprehensive evaluation to the moisture change ability of tobacco, and the method is high in accuracy and high in precision, can be widely applied in the screening of tobacco raw material.

The utility model provides a temperature, humidity and water integrated detection device. The temperature and humidity measuring assembly is arranged on the mounting rack. The temperature and humidity measuring assembly is used for obtaining temperature and humidity information of materials within a preset range. The overturning assembly is arranged on the mounting frame. And each overturning assembly is used for stirring and overturning materials in a preset range. The control module is used for enabling the overturning assembly to stir and overturn the materials in the preset range when the temperature and humidity measuring assembly obtains the temperature and humidity information in the preset range. The arrangement of the overturning assembly can increase the measurement range of the temperature measurement assembly, so that the influence of local temperature and humidity abnormity on measurement data can be avoided, the precision of the measurement data is improved, the balance moisture value can be more accurate, and the storage time of grains in the granary is prolonged.

The utility model relates to the technical field of embankment monitoring, in particular to a side collapse loss detection device for filling materials in a filled embankment. The filler side collapse detection device comprises an insertion cylinder and a side pressure detection assembly arranged in the insertion cylinder. According to the filled embankment internal filler side collapse loss detection device provided by the utility model, the relationship between pore moisture content distribution and service performances such as bearing capacity and long-term deformation of a soft rock embankment is determined through the combination of the filler side collapse detection device and the ground penetrating radar; the evolution law and the service performance degradation mechanism of the bearing capacity, long-term deformation and other service performance of the soft rock embankment under different equilibrium moisture content distribution conditions are disclosed, and whether the filler collapses or not can be detected by detecting whether a copper wire in the arc-shaped elastic rubber plate is in short circuit with a corresponding controller or not. And a water content detector in the device can detect the change rule of the water content in the detection point and the disintegration characteristic of the filler.

The application provides a prestressed wood structure tension loss evaluation method and device, including the following steps: obtaining key parameters of the prestressed wood structure, and collecting temperature and relative humidity of a service environment; calculating the equilibrium moisture content of a wood surface based on the temperature and relative humidity, using a one-dimensional moisture diffusion model to combine the equilibrium moisture content as a time-varying boundary condition, and solving to obtain the internal moisture content distribution of the wood component; updating the elastic compliance of the wood according to the moisture content distribution, and combining the change rate of the prestress to calculate the elastic strain of the wood component. The application decomposes the total strain into four components with clear physical meaning, i.e. elasticity, pure creep, mechanical hygroscopic creep and hysteresis environmental strain, and sets differentiated parameters for the along-grain and across-grain components, and for the first time realizes quantitative analysis of the contribution of each factor in the evaluation, so that the main control mechanism of the prestress loss can be revealed, and direct theoretical basis and decision support for structure optimization design and preventive maintenance are provided.

To provide an optical laminate excellent in high-temperature durability, a picture display unit having the optical laminate and a manufacturing method of the optical laminate.SOLUTION: An optical laminate includes a first protective film, a polarization element and a high retardation film in this order. An absolute value of a photoelastic coefficient at a temperature of 23°C of the first protective film is 8×10-12 Pa-1 or less. A moisture content of the polarization element is equal to or higher than an equilibrium moisture content at a temperature of 20°C and a relative humidity of 20% and equal to or lower than an equilibrium moisture content at a temperature of 20°C and a relative humidity of 48%. An in-plane retardation value Re[550] at a wavelength 550nm of the high retardation film is 3000 to 30000 nm inclusive. An angle formed by a slow axis of the high retardation film and an absorption axis of the polarization element is 40° to 50° inclusive.SELECTED DRAWING: None

A plurality of ventilation elements, vents, slots, or gap elements or similar features that are applied to, or machined into, one or more sides or faces of exterior siding products. When the exterior siding product is installed, the ventilation elements, vents, slots, or gap elements or similar features provide a built-in air and water gap to facilitate and increase water drainage and air circulation behind the siding or panel, thereby minimizing water storage in the space behind the product and lowering the equilibrium moisture content of the siding itself. The ventilation features are incorporated into the corresponding product in-line or during the manufacturing process, and do not require any further work during assembly or construction on-site (e.g., furring strips or other similar drainage mechanisms are not needed).

To provide an optical laminate which has the excellent reflection preventive function and which prevents a crack from being generated in a retardation film even stored for one month in an environment where the temperature is 23°C and the relative humidity is 55% after a heat durability test in a case of using the optical laminate that includes the retardation film adding a function to an image display device.SOLUTION: There is provided an optical laminate having a retardation film, a polarizing element and a reflection preventive film in this order. The retardation film has the tensile modulus of elasticity equal to or less than 3000 MPa at 23°C. The polarizing element has the moisture content equal to or greater than the equilibrium moisture content of the temperature 20°C and the relative humidity 20% and equal to or less than the equilibrium moisture content of the temperature 20°C and the relative humidity 48%. The optical laminate satisfies at least one of the following requirement (i) and the following requirement (ii). (i) The reflection preventive film has the moisture vapor permeability of the temperature 40°C and the relative humidity 90% equal to or less than 300 g / m2 day. (ii) A protective film which has the moisture vapor permeability of the temperature 40°C and the relative humidity 90% equal to or less than 300 g / m2 day is provided between the polarizing element and the reflection preventive film.SELECTED DRAWING: Figure 1

The invention discloses a portable grain moisture detector, and relates to the technical field of grain quality inspection instruments, the portable grain moisture detector comprises a machine body, a rod body, a detection module, a power supply, a control panel and a plurality of dustproof nets; a cavity is formed in the rod body, and a plurality of ventilation windows communicated with the cavity are formed in the rod body; the detection module is arranged at the position, close to the ventilation window, in the cavity, the control panel is arranged on the outer side of the machine body, and the power source is arranged in the machine body. The power supply is electrically connected with the detection module and the control panel, and the control panel is in signal connection with the detection module and the power supply at the same time; and the dustproof nets cover the corresponding ventilation windows. According to the method, workers can conveniently and quickly detect the environment around the grains, so that the storage effect of the grains is judged based on the grain balance moisture, and the method has relatively high accuracy and reliability.

This invention provides a polarizing plate that suppresses the decrease in transmittance under high-temperature conditions. The polarizing plate includes a polarizing element in which dichroic pigments are adsorbed onto and oriented in a polyvinyl alcohol-based resin layer, and a transparent protective film laminated on at least one side of the polarizing element. The polarizing element and the transparent protective film are bonded together by an adhesive layer formed from an adhesive containing a quaternary ammonium salt. The moisture content of the polarizing element is above an equilibrium moisture content of 30% relative humidity at 20°C and below an equilibrium moisture content of 50% relative humidity at 20°C.

An object of the present invention is to provide a MOF having an excellent heat resistance. A metal organic framework, comprising: an organic ligand; a structure Sx constituted by one or more of O2-, OH2, OH-, OCH3-, and OC2H5-; and a metal ion, wherein the metal organic framework has a structure SM-x, in the structure SM-x, two or more metal ions are bonded to one oxygen atom in the structure Sx, the number of the metal ions in a unit lattice is two or more, and a water absorption rate A obtained by formula (1) is 25% or more. waterabsorptionrateA=W1−W2 / W2 (in the formula, W1 represents a mass of the metal organic framework after being left until an equilibrium moisture content is reached under conditions of a temperature of 25°C and a relative humidity of 50%, and W2 represents a mass of the organic metal framework after obtaining the mass W1 and being left at a temperature of 200°C for 1 hour)