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2552results about How to "Low investment cost" patented technology

Non-capitalization weighted indexing system, method and computer program product

A passive investment system based on indices created from various metrics is disclosed. The indexes may be built with metrics other than market capitalization weighting, price weighting or equal weighting. These metrics may include, but are not limited to book value, sales, revenue, earnings, earnings per share, income, income growth rate, dividends, dividends per share, earnings before interest, tax, depreciation and amortization, etc. Non-financial metrics may also be used to build indexes to create passive investment systems. Additionally, a combination of financial non-market capitalization metrics may be used along with non-financial metrics to create passive investment systems. Once the index is built, it may be used as a basis to purchase securities for a portfolio. As the data underlying the indexes changes because of, e.g., economic activity, the index may be updated and may be used as a basis to rebalance the portfolio. Alternatively, the index can be rebalanced when a pre-determined threshold is reached. Specifically excluded are widely-used capitalization-weighted indexes and price-weighted indexes, in which the price of a security contributes in a substantial way to the calculation of the weight of that security in the index or the portfolio. Valuation indifferent indexes of the present invention avoid overexposure to overvalued securities and underexposure to undervalued securities, as compared with conventional capitalization-weighted and price-weighted. Also specifically excluded are equal weighting weighted indexes.
Owner:RES AFFILIATES LLC

Circulating sludge biological fermentation tank, processing system and processing method

The invention discloses a circulating sludge biological fermentation tower which comprises a tower body, an openable tower cover, a storage tank and a plurality of rotatable fermentation devices, wherein the openable tower cover is arranged on the top of the tower body; the storage tank is arranged at the bottom of the tower body; the rotatable fermentation devices are arranged in the tower body in parallel; the fermentation devices divide an inner cavity of the tower body into a plurality of layers of fermentation bins along the axial direction; the lower part of each layer of fermentation device is provided with a ventilating oxygen supply pipeline communicated with a blower; the upper part of each layer of fermentation device is provided with an air outlet pipeline communicated with aninduced draft fan and a monitoring device; the monitoring device is controlled by a control room; and a mechanism for driving the fermentation devices and the tower cover to move, the blower and the induced draft fan are all controlled by the control room. The invention also discloses a circulating sludge biological processing system and a processing method. By the circulating sludge biological fermentation tower, the circulating sludge biological processing system and the processing method, industrial biological fermentation desiccation treatment can be continuously and stably carried out onsludge under the conditions of high efficiency and low energy consumption.
Owner:深圳市如茵生态环境建设有限公司

High-frequency coil structure capable of producing six silicon cores and other crystal material at the same time

ActiveCN101487136AEvenly distributedDistributed between every two peripheral inner holes to make the current run evenlyCoil arrangementsBy zone-melting liquidsEngineeringCopper
The invention provides a high-frequency coil structure which can produce six silica cores and other crystal materials simultaneously, relating to the technical field of high-frequency coils. The high-frequency coil structure comprises a radial shunt trough (14) which is used for diversion of current (15), and six internal holes (8), wherein, one internal hole is arranged at the middle part and other five internal holes are uniformly distributed around the middle internal hole in a petal-shape; an inclined opening (13) at one side of a copper pipe A(11) for conveying current and cooled water and a copper pipe B(12) for conveying current and cooled water is connected and communicated with the middle internal hole; the radial shunt trough extends out from the middle internal hole to a position between every two internal holes except the inclined opening; the inclined opening is connected with the middle internal hole; and the radial shunt trough is radially distributed between every two peripheral internal holes by the middle internal hole, thus leading the current to uniformly run by surrounding the six internal holes under the shunt effect of the shunt trough during the running process and achieving the objects that the current is uniformly distributed around the six internal holes.
Owner:LUOYANG JINNUO MECHANICAL ENG

High-frequency coil structure capable of simultaneous producing seven silicon cores and other crystal material

ActiveCN101457389AEvenly distributedDistributed between every two peripheral inner holes to make the current run evenlyCoil arrangementsBy zone-melting liquidsCrystalline materialsCopper
The invention discloses a high-frequency coil structure capable of simultaneously producing seven silicon cores and other crystalline materials, and relates to the technical field of the high-frequency coils. The high-frequency coil structure comprises a radial splitter box (14) for guiding current (15), and seven inner bores (8) one inner bore of which is arranged at the middle part of the high-frequency coil and six inner bores of which are evenly distributed around the inner bore at the middle part in a petaline shape; an oblique opening (13) arranged on one side of a current delivery and cooling water delivery copper pipe A(11) and a current delivery and cooling water delivery copper pipe B(12) is in through connection with the inner bore at the middle part; and the radial splitter box extends outwards to the position between every two inner bores except for the oblique opening from the inner bore at the middle part. The oblique opening is connected with the inner bore at the middle part, and the radial splitter box is radially distributed at the position between every two peripheral inner bores by the inner bore at the middle part, which causes the current to evenly surround the seven inner bores for running under the current splitting action of the splitter box while the current is running, thus realizing the purpose that the current is evenly distributed around the seven inner bores.
Owner:LUOYANG JINNUO MECHANICAL ENG

Method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in evaporation manner and device of method

The invention discloses a method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in an evaporation manner and a device of the method. The method particularly includes steps that agglomeration liquor prepared by desulfuration wastewater, high polymer adhesive and wetting agent is sprayed into an inlet flue of an electric precipitator and is evaporated by the aid of heat of flue gas, in an evaporation process, the wetting agent promotes dust to enter drops of the agglomeration liquor, the high polymer adhesive is connected with PM2.5 via a polymer chain with polar groups, the grain diameter of the PM2.5 is prompted to be enlarged, so that the PM2.5 can be gathered by the follow-up electric precipitator, the desulfuration wastewater is evaporated completely, suspended matters and dissolvable pollutants in the wastewater are converted into solid to be dissolved out, and the suspended matters and the dissolvable pollutants in the wastewater, together with dust in the flue gas, are gathered by the electric precipitator. The device consists of a boiler, an air preheater, the electric precipitator, a desulfurizing tower, a hydraulic cyclone, a desulfuration wastewater clarification tank and an agglomeration liquor preparation tank, and a double-fluid atomizing nozzle is arranged in the flue between the air preheater and the electric precipitator.
Owner:SOUTHEAST UNIV

Method for exchanging tool of shield machine for tunnel construction

The invention discloses a method for exchanging a tool of a shield machine for tunnel construction, which comprises the steps of: (1) soil cabin replacement filling: performing the process of soil cabin replacement filling by using a spiral excavating machine and a slip casting system synchronously working with the spiral excavating machine; (2) advanced slip casting inside the machine: beating a plurality of slip casting pipes into the soil on the upper part of the shield machine from inner to outer inside the shield machine by respectively passing through a plurality of advanced geologic holes and then synchronously injecting cement paste into the soil on the upper part of the shield machine through the slip casting pipes by using a slip casting device till the cement paste cannot be injected any more; (3) cleaning cabin and exchanging tool synchronously: manually cleaning the cement plaster solidified inside the soil cabin and synchronously exchanging the tool mounted on the shield machine; and (4) getting rid of the difficult position of the shield machine and recovering the process. The method provided by the invention has the advantages of reasonable design, convenience for operation, low cost, high safety factor, good use effect and capable of solving the problem that the tool cannot be exchanged in the traditional tool exchanging mode under severe tool exchanging conditions.
Owner:URBAN RAIL TRANSIT ENG CO LTD OF CHINA RAILWAY FIRST GRP CO LTD +1

Energy-saving heat supply system with function of reducing temperature of heat supply return water

The invention discloses an energy-saving heat supply system with a function of reducing the temperature of heat supply return water, and belongs to the field of improvement of energy utilization efficiency. Heat exchange can be repeatedly carried out on heat sources by multistage heat exchangers, multistage absorption heat exchange units, multistage compression heat pumps and an ice making type refrigerator, accordingly, the heat supply areas can be enlarged, and the energy utilization efficiency can be improved. The energy-saving heat supply system has the advantages that the temperature of the return water of heat supply primary pipe networks can be reduced and reach 0 DEG C, the return water contains 10% of ice particles, accordingly, route heat loss of the return water of the heat supply primary pipe networks can be reduced, the temperature difference of the return water of the heat supply primary pipe networks can be increased and reaches 118 DEG C from the original 60 DEG C, the flow rate of circulating water of the heat supply primary pipe networks can be lowered, energy consumption of circulating pumps can be reduced, heat supply flow rates of a user side can be greatly increased, the delivery efficiency of the pipe networks can be improved, the heat supply scale can be expanded, waste heat of a cooling tower can be recycled, and the like.
Owner:DALIAN BAOGUANG ENERGY SAVING AIR CONDITIONING EQUIP

Method for preparing photonic crystals through 3D (Three-Dimensional) printing

ActiveCN103802315ADiversified structure and morphologyGeneralization of structural morphologyPhotonicsEngineering
The invention discloses a method for preparing photonic crystals through 3D (Three-Dimensional) printing. The method comprises the following steps of preparing macromolecule raw materials for 3D printing by using monodisperse colloidal particles, layering a three-dimensional solid model of photonic crystals into a plurality of two-dimensional patterns, printing the two-dimensional patterns layer by layer in sequence on a substrate and curing layer by layer to prepare three-dimensional photonic crystals which having high dielectric ratios or are suitable for network topology structures. Compared with a current preparation method of the photonic crystals, the method is quick and convenient, lo in investment costs of devices, simple in process, energy-saving and environmentally friendly and short in consumed time, and three-dimensional structure shapes of the prepared photonic crystals are diversified and extensive. The method is an ideal manner of preparing special-purpose photonic crystals in the future. The method is capable of realizing batch production; the prepared photonic crystals can be widely applicable to the scientific research and life of optical devices, tissue culture frames, super lyophobic liquid surface, anti-counterfeiting marks and ornaments, so that the photonic crystals are wide in market prospects.
Owner:SHENZHEN INST OF ADVANCED TECH

Low-pressure ethanol recovery device and method with triple effect rectification

The invention discloses a low-pressure ethanol recovery device and method with triple effect rectification. The low-pressure ethanol recovery device with triple effect rectification comprises a first rectifying tower, a second rectifying tower, a third rectifying tower, a rectifying tower reboiler, a rectifying tower feed preheater, a condenser, a return tank, a dilute ethanol feed preheater, a temporary finished product storage tank and a finished product cooler. In the ethanol recovery method with triple effect rectification, by controlling the recovery of the finished ethanol in the second rectifying tower, the content of ethanol in tower bottom wastewater of the second rectifying tower is 5wt%-30wt%, the temperature of the tower bottom wastewater is 100-120 DEG C, and the working pressure of the third rectifying tower is 250-400kPa. The invention adopts the low-pressure triple effect rectification technique and reduces energy loss in the technical process, thus greatly reducing the energy consumption; and the operating pressure and temperature of the third rectifying tower are greatly reduced, and the requirements on the high temperature resistant and corrosion resistant properties of equipment are reduced, thereby reducing the equipment investment and the maintenance cost.
Owner:GUANGDONG ZHONGKE TIANYUAN NEW ENERGY SCI & TECH

Air shockwave crushing sludge drying device and sludge shockwave drying system

The invention discloses an air shockwave crushing sludge drying device of which the shell is cylindrical. The shell is at least provided with a feed port and a set of compressed air injection pipes in the tangential direction, wherein each compressed air injection pipe is provided with a Laval nozzle; a discharge port is arranged at the central top of the shell; the inside of the shell is provided with a cavity; and a feed port, the discharge port and the injection pipes respectively communicate with the cavity. The normal-temperature air is utilized, thereby avoiding the investment cost on high-energy-consumption heating equipment and large-size heat-exchange equipment, and preventing the odor from generation. The shape of the cavity conforms to the mechanical characteristics of hydromechanics; and the high-speed air flow is utilized to carry the sludge to rotate and mutually collide at high speed in the cavity, thereby effectively pulverizing the sludge. The compressed air shockwaves generated by the Laval nozzle are utilized to impact the suspended sludge particles moving at high speed in the cavity; the unit-cell-coated water is subjected to wall breaking, and the water is atomized and vaporized at normal temperature; and thus, the drying device has the advantage of low energy consumption and can complete the sludge drying efficiently.
Owner:JIANGSU ZHAOSHENG ENVIRONMENTAL PROTECTION TECH CO LTD

Coal tar hydrogenating modified method by two-stage method

ActiveCN101307257AGood Ring Opening Cracking PerformanceGood nitrogen resistanceTreatment with hydrotreatment processesGas phaseDistillation
The invention discloses a two-stage method coal tar hydro-upgrading method. Coal tar is subject to the atmospheric distillation and/or the reduced pressure distillation and is cut into coal tar light cut and coal tar heavy cut; after the coal tar light cut and optional distillate oil are mixed with hydrogen, the mixture enters a first hydrogeneration reaction zone and performs the contact reaction with hydrorefining catalyst; gas phase impurities of a reaction effluent is removed through an intermediate flash distillation column or a high-pressure stripping tower, and then the reaction effluent enters a second hydrogeneration reaction zone to perform the contact reaction with the hydro-upgrading catalyst or the hydrocracking catalyst; and the obtained reaction effluent is cooled, separated and fractionated to produce diesel fraction and naphtha cut. The invention provides a clean and effective coal tar processing and utilizing method, the coal tar light cut is hydro-upgraded to produce diesel oil for vehicles, the sulfur content of the obtained diesel product is less than 50 mu g/g, the content of polycyclic aromatic hydrocarbon is less than 11 weight percent, and the diesel oil cetane number of the product is improved by not less than 20.
Owner:CHINA PETROLEUM & CHEM CORP +1

Electric transmission and transformation equipment state monitoring defect management system and method based on regulation and control integration

ActiveCN104361419AOn timeQuality and quantity completedResourcesElectric power transmissionStatistical analysis
The invention discloses an electric transmission and transformation equipment state monitoring defect management system and method based on regulation and control integration. The method is characterized in that an electric power regulation and control center is used to monitor the operation of newly added power transmission equipment in a centralized manner, monitor the electric transmission and transformation equipment state online and build an analyzing service so as to perform statistical analysis, processing and monitoring, and closed-loop tracking on equipment defect conditions, summarize defect variation trends and occurrence regularity, and promote comprehensive extension, from scheduling operation to equipment operation, of power grid safety control. Resources of an operation on-duty system, a production management system and other equipment management systems are integrated to build a complete and good working interface, electric transmission and transformation equipment monitoring defect multidimensional information is input, and by the aid of management modules of traverse connection, inner control monitoring and closed-loop tracking, the real-time operation states of the electric transmission and transformation equipment can be controlled, inquiring and statistical counting of various key information can be achieved, screening and tracking of family defects are achieved, and equipment health states can be monitored and analyzed.
Owner:STATE GRID CORP OF CHINA +2

Simultaneous removing device and method of various pollutants by electrocatalytical oxidation combining lime-gypsum method

The invention discloses simultaneous removing device and method of various pollutants by an electrocatalytical oxidation combining lime-gypsum method. The device comprises a spraying and cooling device, an electrostatic enhancement reactor, a Venturi device, a double-circulation integrated absorption tower of various pollutants and a wet type electrostatic defroster, wherein after smoke is cooled by the spraying and cooling device, the smoke enters the electrostatic enhancement reactor and is subjected to corona discharge processing in a corona discharge area formed in the electrostatic enhancement reactor; the processed smoke enters the double-circulation integrated absorption tower of various pollutants and is sprayed to remove dust and absorb in the absorption tower; and the purified smoke sequentially enters a corrugated plate defroster and the electrostatic defroster on the upper part of a spraying tower so as to remove aerosol in the smoke. The invention has the advantages that various pollutants can be simultaneously removed, and meanwhile, the pollution of fine granules and the aerosol can be effectively controlled; various pollutants can have higher removal efficiency; and the removal and the absorption of by-products cannot cause secondary pollution to environment.
Owner:ZHEJIANG UNIV

Method for improving dewatering performance of excess sludge by combining biological acidification and Fenton-like oxidation

The invention relates to a method for improving dewatering performance of excess sludge by combining biological acidification and Fenton-like oxidation, which belongs to the technical field of sludge treatment. The method comprises that: under the condition of adding a sufficient quantity of substrates, indigenous acidification bacteria serving as inoculation liquid are cultured and acclimatized from sludge; the inoculation liquid is added to excess sludge in order to perform biological acidification on the sludge under an aerobic stirring condition in the presence of a sufficient quantity of substrates till the pH of the sludge is 2 to 3; under the catalytic action of Fe2+ and Fe3+, H2O2 produces strong oxidative free radicals and other Fenton-like oxidized sludge; Ca(OH)2 solution is added to the treated sludge to regulate the pH of the sludge to be between 6 and 7; and the treated sludge is dewatered by a plate-frame pressure filtration method or a centrifugal dewatering method in order to obtain dewatered sludge with water content between 65 and 75 percent. The combination of biological acidification and Fenton-like oxidation for improving the dewatering performance of excess sludge can improve reaction efficiency, shorten reaction time, increase treatment capacity and reduce cost for sludge treatment.
Owner:BEIJING FORESTRY UNIVERSITY
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