56results about How to "Reduce interface area" patented technology

A solid state relay composed of a series connected pair of LDMOSFETs has a minimized output capacitance. Each LDMOSFET is configured to have a silicon layer of a first conductive type, a drain region of the first conductive type diffused in the top surface of the silicon layer, a well region of a second conductive type diffused in the silicon layer in a laterally spaced relation from the drain region, and a source region of the first conductive type diffused within the well region to define a channel extending between the source region and a confronting edge of the well region along the top surface of the silicon layer. Each LDMOSFET is of an SOI (Silicon-On-Insulator) structure composed of a silicon substrate placed on a supporting plate, a buried oxide layer on the silicon substrate, and the silicon layer on the buried oxide layer. The well region is diffused over the full depth of the silicon layer to have its bottom in contact with the buried oxide layer, so that the well region forms with the silicon layer a P-N interface only at a small area adjacent the channel. Because of this reduced P-N interface and also because of the buried oxide layer exhibiting a much lower inductive capacitance than the silicon layer, it is possible to greatly reduce a drain-source capacitance for minimizing the output capacitance of the relay in the non-conductive condition.

A method of delivering fluid can include using electro-wetting effects to pick-up, transport, and/or deliver discrete volumes of fluid. Voltage can be applied across a fluid contact area having a conductive substrate and a dielectric material with an outer surface. The outer surface can have a native interfacial surface tension state and a voltage induced second state having a reduction in interfacial surface tension. A fluid can be contacted such that a volume of fluid adheres to the outer surface of the fluid contact area when the voltage is applied. Subsequently, the voltage can be adjusted such that at least a portion of the volume of fluid is delivered to a receiving location.

A liquid separator system having a gas phase zone, an aqueous phase zone and a denser liquid zone is used to separate mixtures of fluids. The separator can be used for separating molten sulfur from liquid redox solution or reslurry water. The system includes a vessel with a top part and a bottom part. The vessel has a larger diameter at the top part than at the bottom part. The system also includes an inlet for introducing a redox solution or reslurry water and molten sulfur, which is denser than redox solution or reslurry water, into the vessel. An outlet near the bottom part of the vessel allows a flow of the molten sulfur from the vessel. An interface control structure senses an interface level between the redox solution or reslurry water and the molten sulfur, and the interface control structure controls the flow of molten sulfur from the outlet. The interface control structure is adjusted to optimally alter the vertical height of the interface level within the vessel so that the residence time of the molten sulfur in the vessel does not decrease as the sulfur production throughput decreases, and so that the interface area of the molten sulfur and the redox solution is reduced as the sulfur throughput decreases. A pressure controller monitors the pressure in the vessel and adds or removes gas from a gas phase zone in the vessel to maintain a predetermined pressure regardless of the vertical height of the interface.

A glass melt handling vessel, such as a glass melting furnace, comprising a side-wall monolithic electrode having a stack of multiple pieces of blocks of electrode material, or a pushable electrode, and a method of making a glass material using such vessel. The pushability and/or the use of stacked monolithic electrode prolong vessel life and improves glass melt quality during life cycle of the vessel.

The invention discloses a nano compound pour point depressant and a preparation method thereof. The nano compound pour point depressant disclosed by the invention is compounded from a nano material and a polymer pour point depressant by a melting and blending method. A montmorillonite nano material modified by cetyl trimethylammonium bromide is compounded with the polymer pour point depressant in a certain mass ratio by adopting the melting and blending method so as to obtain the nano compound pour point depressant. The pour point depression effect of the nano compound pour point depressant is further enhanced on the basis of pour point depression of the original pour point depressant. When the nano compound pour point depressant is applied to 0# diesel oil, the pour point depression effect is superior to that of a commercially available pour point depressant, and the cold filter plugging point and the condensation point are respectively reduced by 12-20 DEG C and 18-26 DEG C.

The invention relates to a preparation method for a 3D-SiC/Al composite material of a 3D interpenetrating structure. The preparation method for the 3D-SiC/Al composite material of the 3D interpenetrating structure comprises a preparation process of a 3D-SiC prefabricated member and a subsequent pressureless melt infiltration preparation process of the 3D-SiC/Al composite material. When applied to the subsequent pressureless melt infiltration 3D-SiC composite material, the 3D-SiC prefabricated member can be or not be subjected to oxidation pretreatment according to the used aluminum alloy compositions. The content of SiC in the composite material is 50-73 vol%, the density of the composite material can reach up to 2.90-3.1 g/cm<2>, the heat conductivity can reach up to 232 W/(m.DEG C), the coefficient of thermal expansion is as low as 5.72*10<-6>/DEG C, and the bending strength can reach up to 330 Mpa. The overall performance can meet the technical performance requirements, such as a low expansion factor, high heat conductivity and sufficient bending strength, which must be met by electronic packaging materials.

The invention discloses a preparation method of starch microspheres with small particle sizes. The preparation method comprises steps as follows: (1) preparation of a starch solution; (2) preparation of a polyvinylpyrrolidone solution; (3) forming of an aqueous two-phase emulsion through high-speed shearing and emulsification performed after the polyvinylpyrrolidone solution is added to the starch solution; (4) balling through retrogradation and solidification, separation and washing: the emulsified aqueous two-phase emulsion is put in an environment at the temperature of 4-30 DEG C to be retrograded for 24 h, then taken out and subjected to centrifugal separation for 10-15 min, a substrate in a centrifuge tube is washed and then dried for 12 h, and the starch microspheres with the average particle sizes smaller than 10 mu m are obtained. The prepared starch microspheres have the characteristic of being small in particle size, the phenomenon that starch microspheres aggregate due to the fact that the interfacial area between the two phases of the aqueous two-phase emulsion is substantially increased, the interfacial free energy is substantially increased and liquid drops aggregate to reduce the interfacial free energy in the preparation process of the starch microspheres can be avoided, and the preparation method has great application value.

This invention relates to a double-plenum or double-chamber inlet manifold or splitter, made up of a structural unit comprising two distinct coupled plenums with a common wall, an inlet opening for each of the two plenums and several pipes through each of the said plenums, the said superimposed plenums having substantially flattened general structures and forming, with their respectively connected inlet openings and pipes, two independent circulation circuits running from the entrance at the inlet openings to the outlet at the external openings of the pipes, the said external or outlet openings of the pipes being grouped in pairs, with each pair having an opening of each of the two types of pipes; the manifold comprises two one-piece parts assembled together, in a gas-tight manner, at the continuous assembly areas, a first part incorporating at least the two inlet openings and first portions of the walls of the two plenums, contiguous to the said openings and the second part incorporating the pipes and second portions of the walls of the two plenums, contiguous to the said pipes and complementary to the above-mentioned first portions.

A rice seedling transplanting device good in heat dissipation performance comprises a bearing frame body (92), a rice seedling transplanting execution mechanism (93) arranged at the lower end of the bearing frame body (92), and a fixed connection frame connected with a drive vehicle. The fixed connection frame comprises an upper connection part (61), a lower connection part (61) and a sliding stroke part (81) fixedly arranged between the upper connection part (61) and the lower connection part (61). The sliding stroke part (81) is internally provided with an inner cavity (811) and a middle groove seam (810) communicated with the inner cavity (811). A threaded slide block (95) with a screwed hole in the middle is arranged in the inner cavity (811) in a sliding mode.

The invention provides an automatic rice transplanting device. The automatic rice transplanting device comprises a bearing frame body (92), a rice transplanting executing mechanism (93) which is installed at the lower end of the bearing frame body (92) and a fixed connecting frame which is connected with a driving vehicle, wherein the fixed connecting frame comprises connecting parts (61) which are arranged in an up-and-down mode and a sliding strode part (81) which is fixedly arranged between the up and down connecting parts (61), the sliding strode part (81) is internally provided with an inner chamber (811) and a middle groove seam (810) which is communicated with the inner chamber (811), and the inner chamber (811) is provided with a threaded sliding block (95) with a screw hole formed in the middle in a sliding mode.

The invention relates to an easy-maintenance rice planting apparatus, which comprises a bearing frame body (92), a rice seedling transplant performing mechanism (93) arranged on the lower end of the bearing frame body (92), and a fixation connection frame connected to a drive vehicle, wherein the fixation connection frame comprises two coupling parts (61) in an upper-lower manner and a sliding stroke part (81) fixedly arranged between the two coupling parts (61), an inner chamber (811) and a middle portion groove seam (810) communicated to the inner chamber (811) are arranged inside the sliding stroke part (81), and a threaded sliding block (95) with threads on the middle portion is slidably arranged inside the inner chamber (811).

The invention relates to a method for reducing surface fusion and surface adhesion of HIPE (high internal phase emulsion) in a polymerization process during production of HIPE foam by a continuous method, which comprises the following steps: depositing HIPE on conveying equipment, and simultaneously applying a water phase containing a reducing agent before and after the HIPE deposition position; and then polymerization is carried out, so that HIPE surface fusion and surface adhesion are prevented. For the lower surface of the HIPE in the prior art, the temperature of the high internal phase emulsion is higher than that of a deposition area conveyor belt, so that the temperature of the lower surface of the high internal phase emulsion after deposition is rapidly reduced, the polymerization rate of the lower surface of the HIPE is greatly reduced, and the internal phase is fused to different degrees in a polymerization curing furnace, so that the problems are solved for the first time. The surface fusion and the surface adhesion of the HIPE in the polymerization process are reduced.