34results about How to "Optimizing the Portfolio Structure" patented technology

The invention belongs to the field of food processing and particularly relates to a method for adding medical stone for fermentation in production of white liquor, which comprises the steps of preparing raw materials, steaming grains, fermenting and discharging from kiln and is characterized in that the medical stone is added in the fermentation process of white liquor. The method has the advantages that: by adding the medical stone in the fermentation process of the white liquor, the growth of a zymophyte strain is promoted, the combination structure of an enzyme system in a fermentation process is optimized, fermentation substrate is well transformed, the materials can be well combined, the quantity and types of the products are increased, the complex property of the quality of the liquor is increased, and the quality and yield of the liquor are increased. According to sensory evaluation, the produced raw wine is clear and transparent, has strong grain fragrance, and offers a mellow, soft, sweet and smooth mouthfeel.

The invention discloses a horizontal splicing corrugated steel web plate combined box girder comprising a combined box girder formed by horizontally splicing multiple precast I-shaped girder units (1); and a top plate lower edge steel plate (2-1) and a bottom plate lower edge steel plate (3-1) are respectively connected to the lower end faces of a top plate wet jointing seam (2) and a bottom plate wet jointing seam (3) of two adjacent precast I-shaped girder units (1). The construction method comprises the steps of mounting the multiple precast I-shaped girder units onto a bridge pier abutment, fixing the top plate lower edge steel plates connected with shearing force nails to the top plate wet jointing seams of every two adjacent precast I-shaped girder units, and pouring top plate wet jointing seam concrete (2-3) by taking the top plate lower edge steel plates as support templates; and then fixing the bottom plate lower edge steel plates connected with the shearing force nails to the bottom plate wet jointing seams of every two adjacent precast I-shaped girder units, and pouring bottom plate wet jointing seam concrete (3-3) by taking the bottom plate lower edge steel plates as the support templates. The horizontal splicing corrugated steel web plate combined box girder and the construction method achieve the aims of simplifying the operation process, reducing work amount, shortening construction period, reducing weight and ensuring construction quality.

A RF microwave connector for telecommunication has a central terminal with a guiding groove and a fixing groove. The diameter of the cross section of the guiding groove is larger than the diameter of an inner wire of a coaxial cable and the diameter of the cross section of the upper end of the fixing groove is smaller than the diameter of the inner wire. The inner wire is thrust in the fixing groove by the walls of the fixing groove to cause the combination of the central terminal and the inner wire to be more stable and the connector to have better signal transmission quality by thrusting the inner wire into the fixing groove.

A RF microwave connector for telecommunication comprises a plug; a metal housing of the plug is combined with an insulator; a female terminal is combined with the hollow portion of the insulator; the female terminal has a main body, two opposite contact plates are extended from two sides of one end of the main body for clamping a male terminal; an arc shape of clamping section is disposed at another end of the main body, two edges of the clamping section are symmetrically arched so as to allow the edges of the clamping section to be bended oppositely smoothly to clamp inner wires of a coaxial cable stably when that the clamping section is combined with the inner wires is processed.

A sump assembly for preventing leakage during the flow of washing water is provided. The sump assembly includes a sump case, a fluid passage guide, a sump cover, a lower nozzle holder, and a self-cleaning filter assembly. The sump case stores washing water. The fluid passage guide is disposed on top of the sump case and includes a wash pump within for inducing a forced flow of washing water. The sump cover is mounted on top of the fluid passage guide. The lower nozzle holder firmly contacts the top of the sump cover. The self-cleaning filter assembly is disposed in a space between the sump cover and the lower nozzle holder and includes a mesh filter within for filtering foreign objects.

The invention discloses a kilometer-depth L-shaped ground pre-grouting drilling tool assembly applied to hole drilling, and a hole drilling process which is a kilometer-depth L-shaped ground pre-grouting hole drilling process. The kilometer-depth L-shaped ground pre-grouting hole-drilling drilling process comprises straight hole section drilling, whipstocking section drilling and horizontal section drilling, wherein the whipstocking section drilling comprises whipstocking section drilling of a deviation angle being equal to or larger than 45 degrees and whipstocking section drilling of a deviation angle being equal to or smaller than 45 degrees; during the whipstocking section drilling, on the premise that the build-up rate meets a design requirement, the drilling tool assembly is exchanged and composite drilling of 2m is performed after each drilling of the length of one single drill pipe is performed; when each drilling of the length of 2-3 drill pipe stands or pure drilling over 24 hours is performed, short trip of 10-15 drill pipe stands is completed. According to the kilometer-depth L-shaped ground pre-grouting drilling tool assembly applied to hole drilling and the hole drilling process, kilometer-depth shaft horizontal drift surrounding rock modified ground pre-grouting hole-drilling construction requirements are met, problems that stone dust up-hole resistance is large, trip difficulty is large, drill pipe sticking and hole collapse occur and the like when hole drilling is performed in a horizontal oriented section are solved, and fatigue failure to a drilling tool due to stress and strain under a drilling pipe rotation condition is reduced.

The invention relates to the field of a battery, and in particular relates to an AA hydro-energy battery. The AA hydro-energy battery comprises a copper barrel shell, a magnesium bar and electrolyte, wherein the magnesium bar is arranged in the center of the copper barrel shell, the electrolyte is filled between the copper barrel shell and the magnesium bar, and the positive copper barrel shell, the negative magnesium bar and the negative electrolyte form a battery combination; the electrolyte consists of a solid mixture and water which is injected in use, and the solid mixture consists of the following components by weight percent: 35 to 45 percent of manganese dioxide, 15 to 25 percent of copper powder and 30 to 40 percent of exquisite carbon powder. The AA hydro-energy battery has the advantages of good environmental friendliness, optimized electrolyte formula, optimized battery combination, optimized structure design, large capacity, small internal resistance, high efficiency, repeatability in use after the water is charged into the battery, long service life and high cost performance.

A vertical-axis wind turbine generator system with multi-layer wings and double swing vanes comprises a power generator, at least two layers of wind rotors and a frame mechanism. The at least two layers of wind rotors are installed on the frame mechanism sequentially from bottom to top. Wind pressure of the multiple layers of wind rotors is continuous and balanced, the torque of the wind rotors can be transferred to the power generator through the frame mechanism, and wind energy utilization rate and power generation capacity are high. Each vane and a corresponding supporting rod enables an upper-section vane and a lower-section vane of each vane to be kept vertical within a rated wind speed to obtain a maximum windward area by the aid of a first pin, a compression spring and a steel wire rope, the wind rotors rotates rapidly when run into strong wind, the upper-section vanes and the lower-section vanes form included angles with the supporting rods through the steel wire ropes and the compression springs, the rotation outlines of the whole vanes are V-shaped, and accordingly the windward area of a wind rotor group can be changed to adjust power output of the whole vertical-axis wind turbine generator system. The vertical-axis wind turbine generator system has the advantages of stability in operation, simplicity in structure, wide wind speed application range, high utilization rate of wind energy, long service life of the power generator and the like.

The invention provides a through sealing device. The through sealing device comprises a sealing frame and through sealing assemblies pressed into the sealing frame; the through sealing assemblies arearranged into multiple layers, separation plates are arranged between each layer of through sealing assemblies, and the top layer of the interior of the sealing frame is provided with a compression assembly for compressing the multiple layers of through sealing assemblies; each through sealing assembly comprises two sealing modules which are in a pressing fit mode; and the sealing ends of the sealing modules are provided with sealing grooves and a plurality of sets of semi-ring-shaped sealing inserting sheets which are detachably attached into the sealing grooves, and the sealing inserting sheets are different in wall thickness. During using, sealing pressing can be conducted by selecting the sealing inserting sheets with similar pipe diameters to be assembled with the sealing modules without adopting a core skin removing mode for pipe diameter matching, the operation difficulty is lowered, material wasting is avoided, pollution is reduced, and the assembling structure of the through sealing assemblies is optimized.

The invention relates to an improved plastic-wood floor combination structure. The plastic-wood floor combination structure comprises a wooden floor located on the upper layer and a plastic floor located on the lower layer. The wooden floor comprises a floor face and an assembling face, and the assembling face is provided with a plurality of clamping grooves used for mounting the plastic floor. The plastic floor comprises a top face, a floor body and clamping tenons arranged on the top face. A plurality of buckling parts are arranged on the edges of two adjacent sides of the floor body, and a plurality of clamping grooves are formed in the other two sides of the floor body. In the mounting process, the clamping tenons are embedded into the clamping grooves from the side portion, the buckling parts of one plastic floor are buckled into the clamping grooves of the other plastic floor, and accordingly the plastic-wood floor combination structure can be fixed. The improved plastic-wood floor combination structure has the advantages of the plastic floor and has the visual sense and the touch sense of the wooden floor at the same time, a stable supporting structure is achieved, meanwhile, materials needed for manufacturing are reduced, and the thermal expansion and contraction influence caused by the temperature change of the ambient environment can be reduced.

The invention discloses a barrel type axial flow fan which comprises an outer barrel, a driving part, an impeller and a plurality of guide blades. The outer barrel is provided with an air inlet end and an air outlet end, the impeller is installed on an output shaft of the driving part, the impeller comprises a plurality of vanes, the impeller and the guide blades are located in the outer barrel, and the guide blades are located on the side, close to the air outlet end, of the impeller. The two ends of the guide blades are fixedly connected with the inner wall of the outer barrel and a mounting base respectively, the guide blades are arranged on the periphery of the mounting base in a surrounding mode and are circumferentially distributed in an unequal-angle mode, the arrangement angle difference psi of the guide blades is equal to (360 degrees/n)-a*theta, wherein n is the number of the guide blades, theta is the unequal-distance angle difference of the blades, a is a proportionality coefficient larger than 3 and smaller than 6, and theta is larger than 1 degree and smaller than 10 degrees. The axial flow fan has the beneficial effects that the working efficiency of the axial flow fan is guaranteed, meanwhile, the noise intensity at the fundamental frequency is reduced, the advantage of good sound quality is achieved, and the advantage of low interference capacity of noise to people in the working process of the axial flow fan is achieved.

The invention relates to a power inductor core with a closed magnetic circuit structure. The power inductor core comprises a magnetic base and a magnetic cover, wherein the magnetic cover is fastened to the magnetic base; a magnetic core integrated with the magnetic base is arranged at the center part of the magnetic base; a groove for placing a coil is formed in the periphery of the magnetic core; notches for leading out a coil connector are formed in the edge parts of the groove; and gaps for installing a terminal are reserved at the parts, corresponding to the notches, of the magnetic cover. The invention provides a low-loss and high-current Ni-Zn ferrite core applied to a design of a power inductor product; the design of the low-loss power inductor is achieved; and the product achieves simultaneous matching of low loss, high power and production automation.

The invention discloses a backpack and tent integrated camping tool which adopts the structural design of integration of a backpack, a tent and an inflatable bottom pad. A tent body of the tent is connected with the inflatable bottom pad through zippers and is erected by arch-shaped air columns on the inflatable bottom pad; and the zippers arranged on the tent body of the tent are connected in a buckling manner to form the backpack. The combined structure of the backpack and tent integrated camping tool is optimized, so that the weight of the backpack and tent integrated camping tool is further reduced, the carrying volume of the camping tool is decreased, and the use comfortableness is improved; meanwhile, a ground mat of the tent and supports of the tent are of an integrated inflatable bottom pad and inflatable arch-shaped column structure, so that the tent is easy and convenient to erect, and the firmness and the stability of the whole structure of the tent are also improved; and by the design of the inflatable bottom pad, the problems of rainwater prevention, dampness prevention, cold prevention and outdoor camping comfortableness during the use of the tent are well solved.

The present invention relates to a linear compressor. In the linear compressor, a holder 31b is combined with a cylinder 22 in an interlocking fashion by forming a first threaded part 31c on an inner surface of the holder 31b, the outer side of which on an inner core 31a is mounted, and a second threaded part 22b on an outer surface of the cylinder 22 to correspond to the first threaded part 31c. That is, screws are not required when the cylinder 22 and the holder 31b are combined with each other, thus preventing the cylinder 22 from being deformed by a fastening torque of the screws.