90 results about "Feasibility study" patented technology

Direct slicing of CAD models to generate process planning instructions for solid freeform fabrication may overcome inherent disadvantages of using STL format in terms of the process accuracy, ease of file management, and incorporation of multiple materials. This paper will present the results of our development of a direct slicing algorithm for layered freeform fabrication. The direct slicing algorithm was based on a neutral, international standard (ISO 10303) STEP-formatted NURBS geometric representation and is intended to be independent of any commercial CAD software. The following aspects of the development effort will be presented: 1) Determination of optimal build direction based upon STEP-based NURBS models; 2) Adaptive subdivision of NURBS data for geometric refinement; and 3) Ray-casting slice generation into sets of raster patterns. Feasibility studies applying the direct slicing algorithm to example models and the generation of fabrication planning instructions involving multi-material structures will also be presented.

The invention discloses a comprehensive management system for engineering project supervision, cost, bidding, and consultation, relating to the engineering project comprehensive management system field. A cloud service platform at least comprises an information analysis unit, an information review unit, an information publishing unit and a cloud storage unit, wherein the information review unit, the information publishing unit and the cloud storage unit are connected to the information analysis unit; a user can publish information to the cloud service platform through directly taking pictures, recording sound and performing video recording on a user terminal; the cloud service platform at least comprises one of a project supervision processing unit, a project cost processing unit, a project bidding monitoring unit, a project feasibility study analysis unit, a project evaluation unit, a purchase monitoring unit, a consultation unit and a property management monitoring unit in order to realize comprehensive management including engineering project supervision, cost, bidding, feasibility study, evaluation, government purchase, consultation, property management, etc. The comprehensive management system is rich in functions, high in practicability, high in application value, convenient and easy to popularize, and can effectively improve user working efficiency and management efficiency.

The invention discloses a mytilus edulis enzymolysis polypeptide. The mytilus edulis enzymolysis polypeptide is characterized by containing the following amino acid sequence: Asp Leu Tyr. The mytilus edulis enzymolysis polypeptide is prepared by adopting the following steps of: (1) preparing homogenate from mytilus edulis meat, adding alkaline protease, deactivating the protease, centrifuging, and taking clear solution of the upper layer; (2) performing ultra-filtration on the clear solution, collecting hydrolysate with the molecular weight of below 3K, concentrating, and performing freeze drying; (3) performing chromatographic separation by adopting a DEAE-SepharoseFF ion exchange column; (4) performing chromatographic separation by adopting a Sephadex G-25 gel column; and (5) performing high performance liquid chromatography purification. The invention also discloses application of the mytilus edulis enzymolysis polypeptide prepared by the steps in prostatic cancer resistance. Compared with the prior art, the invention has the advantages that: the mytilus edulis is subjected to enzymolysis and purification by adopting an optimal protease and an optimal technology, a strong cell proliferation inhibiting effect is achieved when the obtained target peptide is applied to prostatic cancer resistant cells, and a feasible research path is provided for resisting prostatic cancer.

The invention discloses a power grid project quality control method. The power grid project quality control method performs comparison and evaluation on relevant data and evaluation criterion of project quality in all stages by establishing a quality supervision analysis system and utilizing the quality supervision analysis system and performs quality monitoring according to an evaluation result. The quality supervision analysis system performs 1 project decision and feasibility study stage management, 2 preliminary design and bid invitation purchasing stage management, 3 building construction stage management and 4 completion acceptance stage management. The power grid project quality control method is simple and easy to operate, facilitates inquiry of project quality supervision evaluation results of participation units and ensures project quality.

The invention discloses an atmospheric stability and wind direction standard deviation method-based wind speed extrapolation method. By screening a data set of an anemometer tower, low-wind-speed datasmaller than a cut-in wind speed of a fan and high-wind-speed data greater than a cut-out wind speed of the fan are deleted; ground roughness at the anemometer tower is calculated; a wind direction standard deviation in the screened data set is subjected to roughness correction by applying a ground roughness value; atmospheric stability classification is performed by adopting a wind direction standard deviation method; an average wind shear index under each atmospheric stability is calculated; by applying a power law method, calculation is performed to obtain a wind speed at a hub height under each atmospheric stability; and summarization is performed to obtain a wind speed set at hub heights. Wind shear conditions of different height layers under different atmospheric stabilities can bereflected more accurately; the changes of the wind shear indexes along with the atmospheric stabilities can be better reflected; the wind speed of the high layer can be calculated more accurately; andthe method has a certain guiding significance for wind power engineering project feasibility research, microscopic location selection and the like.

A method and a system for obtaining optimal range of values for real estate property by using all or some of the admissible appraisal approaches through optimization algorithm. The reliability of factor ranges specific to each appraisal approach is evaluated and discrepant ranges are eliminated. An accurate property valuation through a number of admissible appraisal approaches is possible. Valuation, Feasibility Study, Sensitivity Analysis, value reconciliation and highest and best use are obtained optimally and automatically. Capitalization rate and period are optimized in the relevant approaches.

The invention discloses an unmanned aerial vehicle cruising system and method for heating network pipelines. The system comprises an unmanned aerial vehicle cruising device and a background cloud server, wherein the unmanned aerial vehicle cruising device is used for building an image acquisition device to carry out cruising on appointed heating network pipeline coverage areas to acquire image information; and the background cloud server is used for carrying out remote control and management operations on the unmanned aerial vehicle cruising device, receiving the field acquired information, returned by the unmanned aerial vehicle cruising device, of the appointed heating network pipeline coverage areas, analyzing whether the pipelines are exceptional or not and analyzing the exception types according to the field acquired information. The system and method have the beneficial effects of being more secure, rapidly knowing the information such as target landform, hydro meteorology and the like, providing basis for the pipeline route selection, providing guidance for the route selection in the feasibility research stages of the heating pipelines, observing the safety production problems, construction equipment, pipeline direction and surrounding environment in the construction, adjusting the schemes in time, ensuring the successful completion according to the design requirements,and effectively decreasing the fault occurrence rates of the pipelines in the daily use.

The invention relates to an experimental device and method for contaminated soil thermal remediation feasibility study. The experimental device comprises an air inlet module, a heating module, an extraction condensation module and a tail gas treatment module. The contaminated soil thermal remediation feasibility study experimental method can carry out a thermal remediation feasibility experiment on different contaminated soils, and in situ thermal remediation feasibility is clarified by analyzing concentrations of concerned pollutants in soil before and after the experiment, a gas sample and a condensate sample which are collected during the experiment as well as composition and mass of pollutants in activated carbon after the experiment. The experimental device and method which are provided by the invention are applicable to optimization of in situ contaminated soil thermal remediation feasibility analysis and have important guidance on optimization of key technical parameters, such as target temperature, heating time, extraction rate and a tail gas treatment scheme, of in situ thermal remediation site engineering.

The invention discloses a compensation method of a compensation capacity of a pure active three-phase imbalance load, and relates to the field of a power system. The method provided by the invention is used for solving the problem that the three-phase imbalance and electric energy quality cannot be effectively managed, wherein the problem results from the fact that there is no obtaining method of the compensation capacity of the pure active three-phase imbalance load of a power grid in the existing project feasibility study stage. Power is supplied to the three-phase imbalance load by a three-phase positive sequence voltage; a zero sequence current, a positive sequence current and a negative sequence current are obtained, thus obtaining a negative sequence capacity; the negative sequence capacity is compared with the three folds of the phase with the maximum compensation power in the three-phase compensation reactive powers obtained according to a three-phase balance compensation method; when the difference value of the zero sequence capacity actually needing to be compensated and the maximum of the total compensation capacity in the three-phase system is more than or equal to zero, an obtained compensation coefficient K is more than or equal to 2; and the pure active three-phase imbalance is compensated by the coefficient value. The method is applicable for balancing the three-phase power grid.

The invention discloses a feasibility study evaluation system integrating grid multi-source information. The system comprises an evaluation system platform version and an evaluation system field version. The evaluation system platform version achieves that a user group including a company development planning department, a construction department and various city power supply companies completes,based on a grid planning project library, a grid preliminary work plan, a power grid diagnosis analysis conclusion, a transformer station load measured result, a load ratio of the transformer and theline, the capacity-load ratios of different grid grades, the analysis result of a single-line single transformer, and grid GIS platform information, the collection and preliminary examination of the feasibility study data of a project. The evaluation system field version realizes the filling, checking, and summarization of professional evaluation suggestions and the evaluation of the quality of the feasibility study reports of different design units. The establishment of the feasibility study evaluation system of a grid infrastructure project strengthens the evaluation management, realizes theinnovation of the evaluation method, the optimization of the business process and the strengthening of the standard norms, and promotes the effective coordination of multiple professions.

The invention discloses a comprehensive pipe gallery full-cycle construction management system based on BIM, the system is divided into four modules according to different stages of a comprehensive pipe gallery project, and the first module is a decision stage module; the module II is a construction drawing design stage module; the module III is a construction stage module; the module IV is a completion stage module; the first module is mainly used for engineering feasibility research, initial setting and bidding and tendering stages and comprises a first design technology platform and an early-stage data platform. The module II is mainly used for an engineering design construction drawing stage and comprises a second design technology platform and a design data platform; the module III ismainly used for construction stages of engineering modes such as EPC and whole-process consultation, and comprises a construction technology platform, a construction management platform and a construction data platform; the module IV is mainly used for completion stages of engineering modes such as EPC and whole-process consultation. The module comprises a completion technology platform, a data management platform and a project transfer platform. The system has the characteristics of effectively improving the management level, reducing the construction cost and the like.

The invention discloses a method for establishing an audit strategy of an information system. The establishing method comprises the steps of audit object information system current situation assessment, information system audit strategy formulation, informatization audit organization guarantee system formulation and informatization internal control and audit implementation. According to the invention, a set of internal control and audit management systems suitable for informatization features of an audit object and top-level designs for carrying out related management mechanisms is compiled; project evaluation comprising requirements, the feasibility, rough calculation and the like is carried out on informatization project requirements and feasibility study reports of the audit object, the priority and the reasonability are evaluated by combining norms and requirements of an audit management system, and method has guidance significance and practical values for improving the internal management and control level of the audit object, meeting requirements of services and management for construction of an information system, meeting requirements of external supervision and promoting the information system to conform to requirements of external specifications.

The invention provides a development and adjustment method for a multi-layer sandstone oil reservoir with developed scattered sand bodies. The development and adjustment method comprises the followingsteps that 1, fine reservoir geological research and geological modeling are carried out; 2, a numerical model is established; 3, the numerical model is combined with an oil reservoir engineering method to study the distribution of remaining oil; 4, a multi-round series of strata alternating feasibility study is carried out; 5, the series of strata alternating resource is evaluated; 6, a multi-round series of strata alternating scheme is designed; and 7, index prediction and economic evaluation are carried out, and the scheme is implemented. The development and adjustment method for the multi-layer sandstone oil reservoir with the developed scattered sand bodies has good practicability for improving the reserve control degree and oil recovery speed in the late stage of ultra-high water cut of the multi-layer oil reservoir, under the condition of low oil price, the recovery ratio of the multi-layer reservoir in the late stage of the ultra-high water cut can be economically and effectively improved, and the development and adjustment method provides support for stable production and production increase in old oil fields.

The invention discloses an experimental device for flow and heat transfer characteristics of a curved single passage of a subcritical energy reactor coolant. The experimental device comprises a curved heating single tube, wherein the two ends of the heating single tube are communicated with stabilizing straight tubes, and the stabilizing straight tubes are communicated with threaded joints, the threaded joint are sleeved with threaded flanges; the stabilizing straight tubes are welded with powered copper bars, and pressure diversion holes are formed in the stabilizing straight tubes; the heating single tube is an eccentric curved tube or a concentric curved tube; the center of an inside diameter circle of the eccentric curved tube is O1, the center of an outside diameter circle of the eccentric curved tube is O2, the distance between the O1 to the O2 is larger than zero, and a line segment for connecting the O1 to the O2 is O1O2; the eccentric curved tube is welded with a thermocouple, and a heat insulation protection structure is arranged on the outer wall of the eccentric curved tube; the center of an inside diameter circle of the concentric curved tube and the center of an outside diameter circle of the concentric curved tube are overlaid at a point X1, a plurality of thermocouples are welded on the outer wall of the concentric curved tube, and a heat insulation protection structure is arranged on the outer wall of the concentric curved tube. The experimental device can provide experiment support for the feasibility study on a thermo-hydraulic design of the subcritical reactor coolant.

The invention discloses a power grid operation and maintenance cost prediction method and prediction system. The method comprises the following steps: acquiring basic data related to the power grid operation and maintenance cost, wherein the basic data comprises the electricity consumption of the whole society, the GDP, the power consumption structure, the power grid valid asset net value, power transformation capacity, the line length, and the operation and maintenance cost; inputting the basic data acquired in the above step into a pre-established power grid operation and maintenance cost prediction model to compute, and outputting the expected power grid operation and maintenance cost. The power grid operation and maintenance cost prediction method and prediction system are used for predicting the operation and maintenance cost of the regional power grid, and can provide scientific data support for the power transmission and distribution cost checking, the power grid project feasibility research and post project evaluation and like works.

The invention discloses a method for measuring and calculating the influence scope of a bicycle high-speed road for public bicycle rental stations, which is characterized in that regression method analysis is performed by using selected factors, and the influence scope of a bicycle high-speed road for public bicycle rental stations is measured and calculated by using an analysis result. Acting as new road infrastructure, the bicycle high-speed road gains popularity and promotion in the field of public transportation. Information statistics is performed by stages based on consideration for geographical factors at which the bicycle high-speed road is located and the local economy and population level so as to form a panel database, significance analysis is performed on the factors through a regression model, and thus the influence area range of the bicycle high-speed road for the public bicycle rental stations is judged. The method disclosed by the invention not only can perform feasibility research on construction of the bicycle high-speed road, but also can provide a more accurate scheme basis for layout of the public bicycle stations at the same time.

Provided is a power grid planning and processing method based on a mobile GIS platform. The method includes the steps of site GPS positioning, planning data acquisition, site environment shooting and processing, feasibility study scheme generation, and data transmission and storage. Therefore, the work efficiency and level of the pre-survey, design, prediction and evaluation of grid planning are improved, and the feasibility study compilation efficiency and the scheme accuracy are greatly improved.

The invention relates to an online assessment system and method for a plan feasibility study business based on process optimization, and belongs to the technical field of power grid planning. The online assessment system is provided with a system data server and a system application server, and is characterized in that the system data server and the system application server are connected through a local area network or the Internet and are connected with a client through the Internet or the local area network. The online assessment system is of a three-layer structure comprising a presentation layer, a business logic layer and a data access layer. According to the invention, a lot of repetitive work is reduced, the whole assessment period is shortened, the work efficiency and the work quality of the reporting and assessment staff are improved, and the power grid communication and assessment cost is reduced.

The invention relates to a multi-terminal cloud platform sharing-based transmission and transformation engineering exploration method. In a feasibility research design stage of the transmission engineering, the preliminary investigation is an important procedure, the achievement of which directly affects the feasibility of project investment and project implementation. The conventional preliminaryinvestigation design scheme has some disadvantages; under the general trend of mobile Internets, some emerging map platforms spring up; and by full use of the advantages of maps such as a satellite map, a topographic map and a contour line and emerging mobile terminal equipment, the map platforms are integrated as a novel method applied to transmission and transformation engineering, so that theworking efficiency of site selection and route selection in the preliminary investigation is improved, and the cost of the preliminary investigation design stage can be reduced, and the quality of thefeasibility research design achievement can be improved. The ovey interactive map-based transmission and transformation engineering exploration method of multi-terminal cloud platform sharing can provide a reference for the feasibility research, the preliminary investigation and the design work of power grid projects in all places.

The invention discloses a gas injection capability evaluation method for a depleted oil and gas reservoir gas storage. A depleted oil and gas reservoir is a gas storage built from an abandoned gas reservoir having been mined out already or a decommissioned gas reservoir having been mined to a certain extent; and due to a shortfall in output of natural gas of parts of oil and gas fields, gas sources are not enough for a pilot injection test at a pre-feasibility research stage of the initial period of gas storage construction, and the gas injection capability of the gas storage cannot be implemented clearly. Nitrogen replaces the natural gas as an injection medium to evaluate the gas injection capability of the gas storage, thus a gas injection working system is determined, and gas injectionstring is designed; and the method for evaluating the capability to inject the natural gas into the gas storage through pilot injection of the nitrogen is provided for the depleted oil and gas reservoir gas reservoir, the gas injection working system is determined, the gas injection string is designed, the basis is provided for the design of the gas storage, and thus the investment is saved.

The invention relates to a new energy planning method. According to the new energy planning method, economy is taken as a leading point, related data information is subjected to gridding, and the newenergy planning method is suitable for a large-range area, has more feasibility compared with traditional planning taking resources as a guiding point, and is simpler, more convenient and easier to implement and wider in range compared with economic evaluation in the feasibility research stage. According to the method provided by the invention, data gridding is realized, computer programming is easy to realize, a large-range area is convenient to calculate, and an output result can be read and used by common three-dimensional visual geographic information processing software. According to themethod provided by the invention, the economic evaluation of the new energy project is based on the calculation result of the leveling degree electricity cost; the method more accords with the development trend of the new energy project, and is suitable for the economic evaluation of the new energy in most regions of the world.

The invention relates to a high-voltage alternating-current overhead line electromagnetic field control design scheme screening and optimization method. The method includes the following steps that: the same power grid project is designed respectively, so that a plurality of design schemes can be obtained; related parameters and phase wire coordinates are put into statistics; an electromagnetic field control effect is predicted and calculated respectively; tower design schemes which cannot satisfy electromagnetic field control standard requirements are concluded; design optimization and electromagnetic field control measure increase are respectively performed on the tower design schemes which cannot satisfy the electromagnetic field control standard requirements; the electromagnetic field control effect is predicted again; investment amount calculation is respectively performed on electromagnetic field control design schemes which can satisfy 4kV/m standard requirements; and electromagnetic field control design schemes with low investment amount are screened and are adopted as selected schemes. According to the high-voltage alternating-current overhead line electromagnetic field control design scheme screening and optimization method of the invention, environmental protection factors are considered in a feasibility study stage, and therefore, major changes in a design process can be avoided, and design and prediction time can be saved by more than 50%, and intangible investments in the power grid project can be saved.

A method for screening and optimizing a substation standardized design scheme for controlling noise comprises: respectively designing power grid projects on the same voltage class to obtain a plurality of substation general layout typical design drawings; directly leading general layout diagrams, which are drawn in a CAD format, into each typical design drawing in an equal proportional manner in CandaA software; automatically generating two-dimensional coordinates; respectively carrying out prediction calculation on factory boundary environment noise emission of each scheme; summarizing schemes which cannot reach the emission standard requirement; respectively carrying out optimization design and increase of the measure of reducing noise on the schemes which cannot reach the emission standard requirement; carrying out prediction again; respectively carrying out calculation of an investment number on schemes which can be applied to a 2-class sound environment functional area; and screening the typical design drawing with the low investment number and using the screened typical design drawing as a selected scheme. According to the present invention, the projects can consider the environment protection factors on the feasibility study stage, the projects are avoided being greatly changed in the design process, the progress of the preliminary work of the power grid projects is greatly quickened, and cost of the preliminary work is saved.

The invention provides a GM gray prediction electric energy substitution potential analysis method of a certain region, which relates to the electric power system field, and is invented for solving the problem that the electric energy substitution potential of the traditional region is difficult to synthetically consider a plurality of influence factors of load prediction, the prediction accuracyis low, and the electric energy substitution potential has no self-adaptive ability. The method of the invention comprises the following steps: determining an influence factor of the regional electricenergy substitution potential; Determine the analysis and calculation formula of electric energy substitution potential; Establish GM grey prediction model equation; Determine the correlation coefficient of the equation; Solve the response equation; Combined with the time response equation, the neural network model is used to predict the power consumption and energy consumption. Using the time response equation of electric energy substitution potential, the electric energy substitution potential level of this region is calculated and analyzed at each time node. The invention is applied to theanalysis and prediction of the regional electric energy substitution potential, and provides a feasibility study method with high accuracy and self-adaptability for the analysis of the electric energy substitution potential.

The invention relates to a transmission and transformation project cost risk evaluation management method. The method comprises the following steps: 1) receiving input historical sample data of a transmission and transformation project, and setting a weighting coefficient n according to the risk; 2) initializing the population size of a chaos particle swarm, establishing a chaos particle swarm model, and optimizing parameters of the chaos particle swarm model according to a chaos particle swarm optimization algorithm; 3) determining the iterative frequency of the chaos particle swarm model and the optimal value m of a chaos factor according to the historical sample data and the optimized chaos particle swarm model; 4) determining the parameters, learning factors C1 and C2, the population size N and the evolutional frequency N; 5) performing operations on particles according to formulae 1 and 2, and if a maximum algebra is reached or a satisfied solution is obtained, ending the optimization process, otherwise, returning to the step 4); and 6) receiving input practical sample data of the transmission and transformation project, and according to the practical sample data of the transmission and transformation project, generating a transmission and transformation project cost evaluation result. The method has the beneficial effects that the cost of a new project can be accurately estimated by an investor in a feasible research stage of early project construction, and budget estimation checking personnel can be helped to perform reasonable and quick cost checking in a preliminary design stage.