90 results about "Primary production" patented technology

A method and a system capable of removing carbon dioxide directly from ambient air, and obtaining relatively pure CO₂. The method comprises the steps of generating usable and process heat from a primary production process;

• • applying the process heat from said primary process to water to co-generate substantially saturated steam, alternately repeatedly exposing a sorbent to removal and to capture and regeneration system phases, wherein said sorbent is alternately exposed to a flow of ambient air during said removal phase, thereby enabling said sorbent to sorb, and therefore remove, carbon dioxide from said ambient air, and to a flow of the co-generated steam during the regeneration and capture phase, after the sorbent has adsorbed the carbon dioxide, thereby enabling regeneration of such sorbent, and the resultant capture in relatively pure form of the adsorbed carbon dioxide. This process can also be carried out in more efficient form by admixing with the air a minor amount of a flue gas or an effluent gas containing a higher concentration of carbon dioxide than exists in the atmosphere, most preferably following a pre-treatment. The carbon dioxide can be stored for further use, or sequestered permanently following the capture: The adsorbent is exposed to air at substantially ambient conditions and the adsorbent is exposed to the co-generated steam at a temperature in the range of not greater than about 130° C. The system provides the sorbent substrate and equipment for carrying out the above method, and provides for obtaining purified carbon dioxide for further use in agriculture and chemical processes, including manufacturing hydrocarbon fuels, or for permanent sequestration, as needed.

A data I/O system comprises a plurality of storage devices and a controller which controls the storage devices. In the data I/O system, the controller further includes a read/write unit, responsive to the subsequent receipt of a read request and a write request, for reading data stored in the storage devices and writing data in the storage devices, a logical volume management unit for mapping between a logical image of the data storage of a host processor (logical volume) and an actual space in the storage devices, a volume management unit for managing an active primary production volume (P-VOL) and second multiple mirror volumes (S-VOL) created as mirror images of the primary volume, and an S-VOL restoring unit for restoring the data of a first S-VOL with the data of a second S-VOL depending on the type of an error that happens in the first S-VOL.

The invention discloses a method for remote sensing estimation of net primary productivity of plants. The method comprises the steps of performing data pre-processing on remote sensing data; extracting LAI data of an MODIS product in the remote sensing data, and calculating an FPAR; calculating astronomical radiation total Q0 according to geographical location information of a research area including longitude and latitude and date; extracting an empirical coefficient according to conventional global radiation and sunshine percentage data of the research area; using Q0 and the empirical coefficient to calculate solar total radiation quantity SOL; calculating photosynthetically active radiation (APAR) according to the FPAR and the SOL; extracting soil water content and an empirical parameter in the remote sensing data, calculating current leaf water potential, and calculating water stress factor in combination with the previous empirical coefficient; extracting temperature data in the research area in meteorological data, calculating temperature stress factor f1(Ta); calculating solar energy utilization rate epsilon according to f1(Ta), and the maximum solar energy utilization rate; and calculating net primary productivity (NPP) according to the APAR and epsilon. The method has the advantages of being high in estimation precision.

Electrowinning methods and apparatus are suitable for producing elemental deposits of high quality, purity, and volume. Respective cathodes are used during electrowinning for bearing the elemental product, segregating impurities, dissolving morphologically undesirable material, and augmenting productivity. Silicon suitable for use in photovoltaic devices may be electrodeposited in solid form from silicon dioxide dissolved in a molten salt.

An automatic technology for producing light strip plates without pallet includes such steps as mixing raw materials, extruding out for shaping, conveying while cutting, dual-speed conveying for separating, outputting, stacking and curing. Its primary production line is composed of extruder, synchronous conveyer, non-power conveyer, dual-speed conveyer, output roller way, cutting machine and stacking machine.

The invention relates to a method for improving water quality of a steep-slope river by drop-aeration. The invention comprises the following steps: driving wood piles at two sides of a river channel, backfilling a mixture of crushed stones and soil into a riverbed between a revetment and the piles, covering vegetation to form a plant platform, pouring a trapezoid concrete pier across the river channel to form a overflow weir, and stacking block stones on the overflow weir, wherein the block stones are divided into two sides; the side with higher block stones has small gaps, and the side with lower block stones has large gaps. The invention solves the defects that existing river treatment method results in the loss of deep pools and shoals in natural rivers; primary producers such as various phytoplankton and zooplankton can not reproduce; and benthic and large animals which eat them can not inhabit the river. The invention has low cost, and good permeability, can provide aquatic animals and plants with habitat space, can form a multi-flow changing zone, a multi-organism growing zone, and a multi-fish hideout, has good drop-aeration effect, and can reduce soil loss.

The invention discloses an ecosystem model and biomanipulation technology based eutrophic water body remediation method. Firstly, an ECOPATH model is used to fit the energy flowing mode of the currentecosystem, when the annual production of phytoplankton or aquatic macrophyte in a water body is too high, the minimum primary production requiring for maintaining the operation of the system is takenas the baseline according to the output result of the model, the consumption of the extra primary production in the system is increased through the predation action of fish by using a method of quantitatively adding a fish consumer, and meanwhile, the top-down effect is produced to control the biomass and the community structure of a primary producer. After finishing remediation, the ECOPATH model is used to access the fish catch, the commercial fish species added in the same year are harvested according to the assessment result, so that the balance of energy of the ecosystem is maintained, the fishing catch directly takes away a large quantity of nutritive salts in the water body, and certain economic value is produced. The novel thinking for reference and the technical support are provided for the remediation method taking the scientific experiment as the method from the perspectives of ecology, quantity and energetics, and the method has a very important application value for the ecological remediation of the damaged water body.

The invention discloses a method for building a vegetation net primary production (NPP) estimation model through machine learning based on a multi-source remote sensing product. According to the method, for analysis characteristics of massive data products, it is proposed that a global vegetation NPP estimation model is simulated and built by adopting the machine learning method, and the importance of related characteristic products in vegetation NPP estimation is calculated based on the model. The method mainly comprises four steps of (1) collecting NPP spatial observation products and spatial observation products of NPP related variables; (2) performing data normalization processing; (3) training the NPP estimation model; and (4) assessing the importance of each factor in the NPP estimation model. The method provides a new idea for performing vegetation NPP estimation by utilizing multi-spatial observation data.

The invention relates to a cultivation technology of low-yield tea-oil tree transformation, in particular to application of the high-survival-rate high-position crown changing technology to low-yield tea-oil tree transformation. The high-position crown changing technology is mainly used for carrying out technical transformation on low-yield tea-oil trees, high-yield and high-quality new tea-oil varieties are grafted, the purpose of upgrading and changing varieties is achieved, the yield per unit area of tea-oil trees is improved, and product quality is improved. By means of the technology, the survival rate is more than 96%, and the high-position crown changing grafting survival rate of low-yield tea-oil trees is obviously improved; forming is quick after upgrading, management is simple, and the technology is easy to use and popularize in scale production. The primary production period of tea-oil trees can start the third year after transformation, the oil yield per mu is 25 kilograms, the fertility period gradually starts at the fourth year, the oil yield per mu is 35 kilograms, the high-yield period starts after the fifth year, oil yield per mu is more than 45 kilograms, and tea-oil tree production economic benefits are doubled.

The invention discloses a method for accurately controlling water content in tobacco processing. Two moisture meters are respectively arranged in the link of a cigarette primary production line or a threshing and redrying line with the demand of controlling the water content; the front moisture meter is arranged behind a tobacco dryer or a tobacco roaster, the rear moisture meter is arranged behind a cooling machine or a packaging machine, and the detection results of the two moisture meters are input into an electrical control system; the corrected value is provided for the front moisture meter by the water content value detected by the rear moisture meter in real time; and the front moisture meter can be used for controlling the operation of the tobacco dryer or the tobacco roaster according to the corrected result. The method can be used for obviously improving the stability and the accuracy of water content control of related equipment, overcomes the contradiction that the feedback speed and the detection data distortion degree are not considered by water content detection at the same time in the prior art, remarkably improves the water content control capability of equipment and reduces the fluctuation of moisture content.

The invention relates to a winter wheat yield estimation method based on short-period remote sensing area data. Compared with the prior art, the winter wheat yield estimation method overcomes the defect that winter wheat yield prediction based on high temporal and spatial resolution NPP data does not exist. The method comprises the following steps: obtaining environmental satellite remote sensingdata and meteorological data; preprocessing the environmental satellite remote sensing data and the meteorological data; estimatingthe net primary productivity NPP of the winter wheat; and obtaining awinter wheat yield prediction result. By utilizing an improved CASA model, high-temporal-spatial-resolution winter wheat NPP spatial distribution information with 5 days as intervals is estimated, and an NPP-yield transformation model is combined so that remote sensing estimation of winter wheat yield is achieved.

The invention provides an axial-flow underwater three-stage separation method and a control system thereof which are used for underwater direct separation of undersea oil well produced fluids. According to the axial-flow three-stage oil-water separation technique and control system thereof, a crude oil and production sewage treatment facility in the underwater separation system is transferred to the underwater system from the offshore platform, thereby simplifying the oil-gas gathering and transportation process and the production sewage treatment process, lowering the operation energy consumption in the process, and finally implementing oil-water high-efficiency separation. The primary oil-gas-water separation treatment separates out most water in the oil gas, the secondary axial-flow quick separation treatment removes most oil phases in the primary production sewage, and the tertiary axial-flow deep separation treatment removes the residual oil phase in the secondary production sewage. The underwater transfer system is used for pressurizing the oil fluids in all stages by the underwater transfer pump and directly transferring the oil fluids out; and the separation control system automatically controls the underwater separation operations in all stages and regulates the flow rates of the oil well produced fluid and live crude, and ensures the transient flow pressures of the pressurized oil fluids in all stages to be consistent all the time.

The invention relates to a process for hierarchically extracting limonin, flavonoid and dietary fiber from orange peel residue, and the orange peel residue is used as a raw material. According to different properties and characteristics of limonin, flavonoid and dietary fiber to be extracted, different methods and technical processes are adopted after primary production to avoid mutual interference among the contents and hierarchically and sequentially extract limonin, flavonoid, soluble dietary fiber and insoluble dietary fiber. Therefore, the invention achieves purpose of decreasing the cost, improving the efficiency, simplifying the process and respectively extracting a plurality of contents.

The invention discloses a method for simulating a shallow lake ecosystem model, which utilizes an ecological simulation software to construct a model, comprising the following steps: A, constructing an ecological process equation of a primary producer; B, constructing a consumer ecological proces equation; C. constructing a primary producer and consume ecological sub-model; D, constructing an ecosystem model. The method for simulating the shallow lake ecosystem model of the invention constructs the shallow lake ecosystem model by using the ecological simulation software, more accurately considers the ecological process of organisms, improves the accuracy of the model simulation, and provides theoretical reference and technical support for the research and management of the shallow lake ecosystem.

The invention discloses polyphenylene sulfide as-formed fiber drafting forming technology. It uses polyphenylene sulfide spinning technology to produce polyphenylene sulfide resin fiber, and produces PPS finished fiber by drafting, forming, and winding for PPS as-formed fiber. Its technique condition is as follows: drafting multiple is 2-7; speed is 50-500m/min; temperature is 90-160 centigrade degree; heat forming temperature is 180-300 centigrade degree.

The invention provides a biological feed for increasing egg weight of laying hens at a primary production period, and a completed feed containing the biological feed for the laying hens at the primary production period. The biological feed is prepared through sealed fermentation of raw materials of a feed at the temperature of 20-40 DEG C for 3-7 days, wherein the raw materials of the feed comprise the following components in parts by weight: 0.05-0.2 part of microzymes, 0.05-0.2 part of lactic acid bacteria, 0.05-0.2 part of bacillus, 300-700 parts of puffing dehulled soybean meal, 50-150 parts of corn flour, 50-200 parts of rice bran and 50-150 parts of corn germ cakes. The completed feed for the laying hens at the primary production period contains the biological feed of which the weight ratio is 3-6%. The completed feed is balanced in nutrients and high in digestibility, and experiments conform that the completed feed has precise effects on increasing the egg weight of the laying hens at the primary production period.

The invention discloses a method for online testing and grinding of a long metal material. The method comprises the following steps: marking, recognizing, calibrating and testing the long metal material; conveying the long metal material which meets the requirements and cannot be ground to a sorting station; conveying the long metal material which has defects and can be ground to a grinding station for grinding; carrying out secondary recognition and testing on the ground long metal material; conveying the long metal material subjected to grinding and secondary testing to the sorting station.An online testing and grinding system for the long metal strip is provided with a testing input roller table, a testing output roller table and a testing device, wherein a first recognition device anda diameter measuring instrument are arranged between the testing output roller table and the testing device; a grinding input roller table is arranged beside the testing output roller table; a grinding output roller table is arranged beside the testing input roller table; a second recognition device and a grinding device are arranged between the grinding input roller table and the grinding outputroller table. The system is also provided with a control processor. According to the method, testing and grinding of the long metal material are integrated in the primary production process; the testing and grinding system can test and grind the long metal material.

The invention discloses a remote sensing monitoring method of the light use efficiency and the gross primary production of a phyllostachys pubescens forest ecological system. The method comprises the following steps of: firstly, obtaining the gross primary production through a carbon flux tower observation technology, and calculating the light use efficiency by dividing the gross primary production by photosynthetically active radiation; secondly, by utilizing the relationship among the light use efficiency of the phyllostachys pubescens forest, the reflectance of a remote sensing image and the vegetation index, on the basis of eliminating an abnormal value of the remote sensing image, in combination with a partial least square method and a bootstrap method, screening an optimal variable combination, establishing a light use efficiency inversion model, and obtaining the light use efficiency of the phyllostachys pubescens forest by inversion; and finally, calculating the light use efficiency of the phyllostachys pubescens forest by utilizing a light use efficiency inversion model, multiplying the calculated light use efficiency by the photosynthetically active radiation, obtaining the gross primary production of the phyllostachys pubescens forest, and realizing dynamic monitoring of the light use efficiency and the gross primary production of the phyllostachys pubescens forest ecological system based on a remote sensing technology. By means of the method, the remote sensing monitoring precision of the gross primary production of the phyllostachys pubescens forest can be increased.

The present invention discloses a superheated steam recycling and waste heat utilizing apparatus. The apparatus consists of a steam saturation packing column, a superheated steam supply system, a cooling water supply system and a concentration tank heating system. The apparatus recycles and utilizes the superheated steam produced in the nylon 66 production to replace a biphenyl heating mode in the concentration tank heating system of the primary production process; an outlet of the superheated steam supply system is connected to a superheated stream inlet of the steam saturation packing column; an outlet of the cooling water supply system is connected to a cooling water inlet of the steam saturation packing column; a saturated water outlet of the steam saturation packing column is connected to a central pool, and a saturated steam outlet of the steam saturation packing column is connected to an inlet of the concentration tank heating system; and an outlet of the concentration tank heating system is connected to the central pool by virtue of a pipe.

An article based on extruded polystyrene, in the form of a slab, panel or flexible sheet to make heat insulations is made with re-granulated polystyrene from industrial working or production scrap, or from primary production plants.

The invention discloses a method for planting submerged vegetation Vallisneria denseserrulata in a medium-subsidence wetland of a coal mining subsidence area. The method comprises steps of selecting proper Vallisneria denseserrulata seedlings and preserving the same as needed, planting the Vallisneria denseserrulata seedlings in a pre-processed engineering area in the medium-subsidence wetland ofa coal mining subsidence area in specific time and according to a certain interval and by corresponding seedling clips, monitoring ecological indexes of Vallisneria denseserrulata plant clusters in the engineering area after the plantation, and managing a water level during a growth period. With the plantation of highly-effective and primary producer submerged vegetation, an ecological service function of an aquatic ecological system in the medium-subsidence wetland, and utilization rate of the medium-subsidence wetland can be improved.