107 results about "Moisture diffusion" patented technology

A low-pin-count chip package including a die pad for receiving a semiconductor chip and a plurality of connection pads electrically coupled to the semiconductor chip. The semiconductor chip, the die pad, and the connection pads are encapsulated in a package body such that the lower surfaces of the die pad and the connection pads are exposed through the package body. The present invention is characterized in that the die pad and the connection pads have a substantially concave profile thereby prolonging the time for moisture diffusion into the package as well as enhancing the “locking” of the die pad and the connection pads in the package body. The present invention further provides a method of producing the low-pin-count chip package described above.

The invention relates to a solar zero-liquid-discharge sea water desalting plant and method. Moisture in sea water is evaporated quickly at low energy consumption by using a liquid spray method and multistage hot air contact; 100-400 DEG C hot air is supplied by a condensation solar heat collector, micro-dimension sea water drops perform moisture diffusion and heat transfer with dry hot air many times, nano drop characteristic evaporation is implemented an atomization evaporator, the obtained high-temperature saturated moist air is cooled by a saturated moist air condenser to obtain fresh water, the rest low-temperature saturated air is exhausted, and solid crystals are taken out from the bottom of the atomization evaporator. The invention is suitable for desalting of sea water, or concentration separation or liquid-solid separation of bitters and other electrolyte water solutions. The invention has the advantages of perfect structure, strong automatic control performance and high efficiency, and fully utilizes the solar energy.

The invention relates to a moisture generator and a preparation method thereof. The moisture generator comprises a substrate, a first electrode, a nanowire layer and a second electrode which are arranged in sequence, wherein the nanowire layer is arranged between the first electrode and the second electrode, and formed by nanowires in random distribution. The invention also provides a preparationmethod of the moisture generator. The moisture generator provided by the invention adopts a network structured formed by the nanowires, wherein the structure has high hydrophilicity, and a large number of nanometer gaps therein can facilitate moisture diffusion, so that the moisture generator can be relatively high in power output density; and when a substrate of the moisture generator is preparedfrom a flexible material, and when the nanowire layer network structure with high flexibility is matched, the moisture generator can be high in mechanical flexibility and can be pasted on human bodyskin to monitor the human body respiration state in real time, or the moisture generator can be used as a wearable touch electronic screen.

The invention relates to a trapezoidal moisture-transfer knitted fabric, which comprises a multilayer body compounded from an outer layer, an inner layer and a middle layer, wherein the fabric is an air layer knitted fabric; the water repellency area in the inner layer accounts for 50-60 percent relative to the total area of the inner layer; the hydrophile area in the outer layer accounts for 90-100 percent relative to the total area of the outer layer; and the outer layer is connected with the inner layer through the middle layer. The trapezoidal moisture-transfer knitted fabric has the advantages of reasonable structure, hydrophilicity in the outer layer and water repellency in the inner layer, sweat can be quickly exhausted from the inner layer to the outer layer under the moisture transfer and transition actions of the middle layer, a small amount of moisture is kept in the inner layer, a moisture diffusion area is small, and thus, the skin is kept dry and comfortable.

A novel thin film encapsulated OLED panel architecture and a method for making the panels with improved shelf life is disclosed. The OLED panel consists of a plurality of OLED pixels; each OLED pixel is individually hermetically sealed and isolated from its neighboring pixels. The organic stack of the OLED pixel is contained within its own hermetically sealed structure, achieved by making the structure on a barrier coated substrate and using a first barrier material as the grid and a second barrier for encapsulating the entire OLED pixel. The first barrier material provides the edge seal while the second barrier disposed over the pixel provides protection from top down moisture diffusion. By isolating and hermetically sealing individual pixels; any damage such as moisture and oxygen ingress due to defects or particles, delamination, cracking etc. can be effectively contained within the pixel thereby protecting other pixels in the panel.

The invention discloses a method for preparing an intelligent waterproof moisture permeable tent fabric, comprising: a step of preparing a shape memory polyurethane emulsion, a step of adjusting the trigger temperature of the shape memory polyurethane, a step of water-repellent finishing of a base fabric, and a step of coating and finishing a coating layer. The proportion between the soft, hard polyurethane segments is adjusted, thus the trigger temperature of the shape memory polyurethane is made to be close to the human temperature, and the mutation in thermodynamics performance of the shape memory polyurethane at the trigger temperature-high molecular micro-Brownian movement is used and combined with the micropore moisture permeable film coating technology, thus the hydrophilic moisture diffusion performance of the shape memory polyurethane film formed on the base fabric is reinforced, and when the temperature is above the trigger temperature, the water steam well permeates the fabric, so as to play a water-proof moisture permeable role and when the temperature is below the trigger temperature, the fabric plays a wind-proof thermal insulation role.

The invention discloses a high-rigidity high-durability carbon fiber enhanced polyamide composite material and a preparation method thereof. The high-rigidity high-durability carbon fiber enhanced polyamide composite material is prepared from the following raw materials by weight percent: 60-90% of polyamide resin, 5-10% of flexibilizer, and 10-30% of surface treated carbon fibers, wherein the surface treated carbon fibers are carbon fibers treated with a polyurethane prepolymer previously. Compared with the prior art, the high-rigidity high-durability carbon fiber enhanced polyamide composite material has the advantages that on one hand, no any solvent is used in the surface treatment process of the carbon fibers, the process is simple, the attachment effect of the polyurethane prepolymer on the surface of the fibers is good and an excellent bonding interface layer can be provided for the composite material, and on the other hand, the interface debonding phenomenon caused by factors such as moisture diffusion and thermal expansion is effectively prevented by virtue of effective fiber surface treatment, and as a result, the durability of the composite material in complex environments, especially under a high-humidity condition, is improved.

The invention provides a discontinuous unsaturation soil rainfall infiltration physical simulation system and a measuring method. The discontinuous unsaturation soil rainfall infiltration physical simulation system comprises a testing soil groove, a bleed-and-feed system and a measuring system, the measuring system comprises a soil water potential measuring unit, a soil moisture measuring unit, awater head measuring unit, a soil temperature measuring unit, a soil moisture diffusion measuring unit, a data acquisition instrument and a data storage computer. According to the discontinuous unsaturation soil rainfall infiltration physical simulation system and the measuring method, a researcher can be helped to better understand related conception of unsaturated zone unsaturation seepage experiment and unsaturated zone rainfall infiltration preferential flow under the condition of understanding a discontinuous medium, permeability coefficients, soil matrix potential, soil moisture horizontal diffusion speed and the like of soil can be measured in practical application, the diffusion rate, an infiltration curve and a motion equation of unsaturation soil moisture are studied by using a measuring result, and stable data support is provided for studying the influence of soil characteristics at different collapse stages on unsaturated zone moisture displacement.

The invention discloses a method for producing refined moisture diffusion industrial salt based on underground recycling of waste liquid. The method comprises the following steps: (1) mixing waste water of salt production with ammonia alkali waste liquid in proportion; (2) injecting the mixed waste liquid obtained in step (1) into an underground mirabilite type rock salt cavern; after sufficient reaction and natural sedimentation, extracting low-nitrate brine; (3) injecting the low-nitrate brine obtained in step (2) into a reaction barrel, injecting a sodium carbonate solution into the barrel, and adding a certain amount of sodium polyacrylate as a coagulant aid; then, stirring and standing, and removing calcium ions out of the brine to obtain refined low-nitrate brine; (4) carrying out secondary preheating on the refined low-nitrate brine obtained in the step (3), carrying out evaporation, concentration, crystallization and solid-liquid separation, and carrying out centrifugal separation on underflow salt slurry to obtain a refined moisture diffusion industrial salt product; (5) with liquid obtained by solid-liquid separation and centrifugal separation in the step (4) as the waste water of salt production, supplying the waste water into the step (1), blending the waste water with the ammonia alkali waste liquid in proportion, and injecting the mixture into the underground rock salt cavern as a brine extracting source, thus realizing the recycling of waste liquid.

A capacitor device having a three-dimensional structure includes: a lower electrode formed on a semiconductor substrate to have a three-dimensional shape; a capacitor insulating film formed to cover the lower electrode and made of a ferroelectric material; and an upper electrode formed on the capacitor insulating film to have a step portion. A stress control layer is formed on the upper electrode to cause tensile stress and function as a moisture diffusion barrier.

The invention provides a soil moisture characteristic parameter calculating method based on a staging tabu searching algorithm. The soil moisture characteristic parameter calculating method comprises the steps of: S1, acquiring soil saturated hydraulic conductivity and saturated moisture content; S2, calculating unsaturated hydraulic conductivity of soil and soil moisture diffusion rate; S3, establishing a one-dimensional soil moisture movement mathematical model; S4, obtaining the theoretical value calculation formula theta (a, b and m) of soil moisture content; S5, determining practical measured value theta of the soil moisture content; S6, optimizing according to theta (a, b and m) in the S4 and S5 and improved staging tabu algorithm, so as to determine the optimal value of a, b and m; and S7, bringing the optimal value in the S6 in the S3 to calculate the soil moisture characteristic parameter. With the method disclosed by the invention, the one-dimensional soil moisture movement rule can be determined under negative pressure sub-irrigation condition, thus instructing and further improving a negative pressure sub-irrigation system, improving the soil moisture utilization rate and further improving the soil moisture rate.

The invention belongs to the technical field of radio frequency drying and particularly relates to an online weighing control system for radio frequency-hot air combined drying equipment. Aiming to realize self-adaptive control of radio frequency output power and air speed in a radio frequency-hot air combined drying process, the online weighing control system for the radio frequency-hot air combined drying equipment comprises an execution device, an online weighing device and a weighing control device. The online weighing control system is simple in structure and convenient to use, mass of materials can be acquired in real time, the material drying rate can be obtained according to mass change, then the execution device is controlled by the weighing control device to adjust polar plate spacing or the air speed automatically, moisture diffusion in the materials is matched with outside convective mass transfer, and the material drying rate can be increased greatly. Besides, influence of external environmental conditions on state parameters of the materials and a drying chamber in material pick-and-place processes during manual intermittent weighing and in radio frequency equipment starting and stopping processes is avoided, and the control precision is improved.

A method of manufacturing a semiconductor device includes: forming a transistor with first and second ends 3a and 3b of a main current path, and a control electrode 5, covering the transistor with a first insulating film 6, forming first through third openings that expose the first and second ends 3a and 3b and the control electrode 5, and burying or filling first to third conductive materials 7a-7c in the first to third openings respectively, forming the ferroelectric capacitor by laminating the first electrode 8, the ferroelectric film 9, and the second electrode 10, laminating the second insulating film 11 and the moisture diffusion protective film 12, forming the fourth opening 13c to expose the third conductive material 7c through the second insulating film 11 and the moisture diffusion protective film 12, and forming a first wiring layer 14c, which has electrical connection with the control electrode 5.

The invention discloses a hydrolysis-resistant polyurethane shoe sole and a preparation method thereof, and relates to the technical field of a shoe sole material, wherein the polyurethane shoe sole is prepared from an ingredient A and an ingredient B; the ingredient A is prepared from the following ingredients in parts by weight: 40 to 60 parts of polyether polyol, 30 to 50 parts of polyester polyol, 1 to 2 parts of nonmetallic catalysts, 1 to 5 parts of chain extending agents, 1 to 2 parts of foam stabilizers and 1 to 2 parts of water; the ingredient B is prepared from the following ingredients in parts by weight: 20 to 40 parts of isocyanate and 10 to 30 parts of polyethylene glycol adipate. The polyether polyol is introduced into the polyurethane shoe sole; meanwhile, the nonmetallic catalysts are used; the introduction of metal ions is avoided; a metal chelating agent is added, so that metal ion impurities are removed; then, isothiazolinone is added for inhibiting or killing microorganisms capable of causing polyurethane shoe degradation; the crystallinity degree of polyurethane is improved by isocyanate with benzene rings, so that the moisture diffusion speed is slowed down;the five ingredients are matched; the synergistic interaction is realized; the hydrolysis-resistant performance of the polyurethane shoe sole is improved; the service life of the polyurethane shoe sole in humid environment is prolonged.

The invention relates to moisture-absorption uniform and slow heat fabric and a weaving method thereof. The moisture-absorption uniform and slow heat fabric is moisture-absorption uniform and slow heat fabric with a three-layer structure woven by adopting a knitting, weaving, non-woven technology or a multilayer sewing technology, and the three-layer structure is composed of an inner layer, a middle layer and an outer layer, wherein the inner layer has diffusion and moisture conduction functions, the middle layer has moisture absorption and storage functions, and the moisture absorption capacity and the liquid moisture diffusion speed of the middle layer are both between the inner layer and the outer layer; and the outer layer has moisture absorption and heating functions. The temperaturerise rate of the woven moisture-absorption uniform and slow heat fabric to reach a highest temperature rise value is less than 1 DEG C/min, the time for the fabric to reach the highest temperature rise value is delayed by 1-3 min compared with weft planin-knitted fabric woven by similar moisture-absorption heat blended yarn, and the heat-retaining time of the fabric is 21-25 min; and under the same humidification condition, the heat area of the moisture-absorption uniform and slow heat fabric is 5% or above more than the heat area of the weft planin-knitted fabric woven by the similar moisture-absorption heat blended yarn.

The invention discloses a disk type unsaturated soil moisture diffusing device, comprising moisture supplying device and soil moisture diffusing disk, wherein the moisture supplying device supplies moisture for the soil in the disk and is a lucite tube provided with a water intake on the top of the lucite tube and a water outlet at the inferior end of the side wall of the lucite tube and the water outlet is provided with a rotary valve. The moisture supplying device provides water supply with constant head based on Mariotte bottle principle and is connected with the soil moisture diffusing disk by a rubber hose. The soil moisture diffusing disk comprises three concentric circles and is divided into water chamber, filtering layer and sample laying area from the inside to the outside, wherein the circular side wall between each parts is overspreaded with cribriform pores to make the moisture freely pass through, The disk type unsaturated soil moisture diffusing device can measure a plurality of samples at the same time and the measurement result has consistency with the traditional method (horizontal earth column diffusion method).

The invention relates to the field of foods, and discloses double-layer jam sour-milk and a production technology thereof. The double-layer jam sour-milk comprises a base material layer at the top anda jam layer at the bottom, wherein the base material layer comprises sour milk and fruit materials. The double-layer jam sour-milk has the following advantages and effects: the double-layer jam sour-milk comprises a base material layer at the top and a jam layer at the bottom, wherein the base material layer comprises sour milk and fruit materials, so that, demands of different consumers on flavor levels can be satisfied; gelatin and hydroxypropyl distarch phosphates, or high-methoxyl pectin and hydroxypropyl distarch phosphates, are added into the jam layer so that the jam layer solidifies into gum when being refrigerated, and thus, the jam layer is not liable to be dispersed when the base material layer is being filled; moreover, xanthan gum, locust bean gum, Gellan gum and sodium carboxymethylcellulose are added into the jam layer so as to increase water-retaining property of jam, so that, moisture diffusion between the base material layer and the jam layer is reduced so as to facilitate maintaining of clear dividing surface between the two layers. And thus, the effects of satisfying demands of different consumers on flavor levels, ensuring clear dividing surface between the two layers during shelf life and assuring good product stability are achieved.

The invention discloses an adaptive heat and mass transfer radiating device for intelligently responding to hot spots of a chip, comprises a heat sink substrate and an upper cover plate. A through hole is formed in the center of the upper cover plate through etching, a central fluid inlet corresponding to the through hole and having the same radius with the through hole is etched in the radiator substrate, a plurality of fractal micro-flow channels communicated with the central fluid inlet are also etched on the heat sink substrate, and a trapezoidal heat shrinkable temperature sensitive hydrogel is embedded in each fractal micro-flow channel and in two branch flow channels, and the embedded hydrogel penetrates into the two branch flow channels. The heat dissipation device has strong heatexchange ability and small flow pressure drop. The embedded heat shrinkable temperature sensitive hydrogel can intelligently respond to the local hot spots of the chip and produce volume change and moisture diffusion and transport under certain temperature conditions, adaptive control of flow channel and flow exchange in branch channels are realized, which realizes automatic redistribution of flowrate, quickly removes heat from local hot spots of the chip, effectively prevents local thermal failure and maintains uniform surface temperature of the chip.

The invention discloses a large-buried-depth soil permeability coefficient and moisture diffusion coefficient measuring system and method and relates to the technical field of agricultural water-soil engineering. The system comprises a sampling module, a sample preservation module and a measuring module. The sampling module is used for sampling large-buried-depth soil to obtain a soil sample with the volume consistent with the inside volume of a transparent organic glass soil pillar. The sample preservation module is used for preserving the transparent organic glass soil pillar containing the soil sample through a transparent container and pressurizing the soil sample in the transparent organic glass soil pillar through two water-permeable stones connected with the upper section and the lower section of the transparent container respectively. The measuring module is used for detecting the permeability coefficient and the moisture diffusion coefficient of the tested soil after acquiring a preset volume of tested soil from the transparent organic glass soil pillar according to containing marks on the transparent organic glass soil pillar. The advantages that the state of the soil sample is effectively kept, and then the accuracy of the measured permeability coefficient and moisture diffusion coefficient of the soil is improved are achieved.