84 results about "Degradation phenomenon" patented technology

The invention relates to the field of mobile communication, and specifically discloses a network link quality monitoring method and apparatus. The method comprises the steps of monitoring operating state information of each device in a system, conducting statistics of channel quality associated parameters of the devices, determining links of the devices of which the channel quality associated parameters meet a preset failure condition as failed links, and recording each node that the failed links pass; then calculating the failure weight of each node that each failed link passes, the failure weight being used for indicating the credibility of the node as the failure cause in all the failed links; and finally, selecting the node with the highest failure weight for failure positioning. In this way, the invention can timely reflect network link quality degradation phenomena, and timely collect failure positioning information.

The invention discloses a method for improving light degradation of a boron-doped crystalline silicon solar cell. The method comprises the following steps: heating a solar cell to enable the temperature to reach a first temperature and keeping constant temperature for a first preset time; electrifying the solar cell at constant temperature with preset current; electrifying for a second preset time; cooling the solar cell under electrifying state and reducing the temperature to be below the second temperature; after heating and performing constant temperature treatment on the solar cell, electrifying, combining boron atom and oxygen atom in the solar cell into a B-O pair, and combining with hydrogen atom in the surface film and forming into an H-B-O pair; generating the H-B-O pair to enable the B-O pair to deactivate. After the treatment according to the method provided by the invention, the B-O pair complex in the solar cell is reduced, so that the light degradation amplitude is reduced and the light degradation phenomenon of the boron-doped crystalline silicon solar cell can be effectively improved.

The invention relates to a particle filter method based on the parallel genetic resampling, which comprises the following steps of: (1) sampling around an initial probability distribution to obtain initial particles, and setting an initial weight; (2) sampling the particles around the state transition probability density by the filter estimation of M particles at the time of k-1 to generate M new particles, wherein M is a natural number; (3) respectively carrying out the weight update on the M particles to obtain the weight of each particle; and (4) optimizing the particle group by using the parallel genetic resampling algorithm. The invention improves the particle filter, inhibits the degradation phenomenon, solves the problem of the particle insufficiency caused by simple random resampling, improves the diversity and the adaptability of the particles, and further improves the performance accuracy for the particle filter.

The invention discloses a maintenance and spare part supply combined optimization method based on a deterministic inventory degradation model. The maintenance and spare part supply combined optimization method based on the deterministic inventory degradation model comprises the steps of selecting and fitting out the deterministic inventory degradation model according to inventory degradation data, introducing the deterministic inventory degradation model, computing the expected maintenance expense, the expected spare part purchasing expense, the expected spare part storage expense and the expected spare part shortage loss expense, building a maintenance and spare part supply combined optimization model according to the deterministic inventory degradation model, and carrying out optimization solution. The method takes the spare part inventory degradation phenomenon which is ignored but very important in the maintenance optimization process into account, and combines the historical inventory storage degradation data to obtain the deterministic inventory degradation model which describes the spare part inventory degradation phenomenon. Meanwhile, the deterministic inventory degradation model is introduced into the computation of the maintenance and spare part supply related expenses, the combined optimization model is built more reasonably, the combined optimization model is more suitable for the practical situation than an original model, and a more accurate result can be obtained.

The invention discloses a preparation method of a back contact HIT solar battery based on an N-type silicon substrate. The preparation method combines a conventional crystalline silicon battery productive technology and a thin film solar cell productive technology, is simple and is capable of realizing industrialization fast. The solar battery prepared by the method does not have the light-induced degradation phenomenon of the crystalline silicon solar battery; the transmission optical path of the sunlight in the battery is longer, and the thickness of the battery is greatly reduced than thatof the conventional crystalline silicon solar cell; the electrodes are fully printed on the back of the battery, thus not only avoiding the shading problem of the positive electrode of the conventional solar battery, but also reducing the requirements on the printing precision and height to width ratio of the electrode; in the component production process, by using the solar battery, welding processes can be reduced, solder strips are reduced and production cost of the component is lowered.

A cultivation model of Catalp asexual propagation uses a model which includes two steps: first, makes Catalp asexual stem quick dipping in a solution of IBA, NBA (2:1) 500-1500ppm; second, Catalp asexual stem which is dipped in the solution is levelly buried in the middle to grow in a soil substrate containing vermiculite, perlite and sand. The cultivation model has a plurality of advantages: the cultivation model is simple and easy to learn for forestry and agriculture; degradation phenomenon of good characters for seeds propagation is avoided by propagating Catalp chozen clones using the cultivation model; Catalp seedlings can be propagated massively and quickly; moreover, the average survival rate reaches to more than 95%, and the average survival rate of conventional cuttage method is between 10% and 20%; the raw material used is cheap and easy to be get; the method is simple and practicable. The invention provides a new model for Catalp chozen clones widespreading and seeding fast-obtaining in the process of fast-growing plantation in our country.

The invention discloses a Rhodida plant callus and suspension cell granule production method, comprising: (1) constructing a Rhodida plant aseptic culture system to culture and obtain aseptic Rhodida plants with roots, stems and leaves; (2) inoculating the roots, stems or leaves of the Rhodida plants into a callus induction culture medium to carry out callus induction culture and successive transfer culture to obtain good suspension cell granules originated from different organs of the Rhodida plants. The good suspension cell line originated from different organs of the Rhodida plants has the characteristics of fast growing speed, good dispersibility, high content of secondary metabolites (wherein the content scope of Salisorosides Rosavin and tyrosol are respectively 1-3% and 0.5-0.7% of the dry weight of the suspension cells) and the like, is very stable in successive transfer culture and degradation phenomenon does not exist.

The invention belongs to the field of medicine preparations, and discloses a medicine composition containing oxytocin and a preparation method of the medicine composition. The medicine composition containing the oxytocin comprises oxytocin, a pH adjusting agent with the pH value of 4.0-7.0, an isoosmotic adjusting agent and water. The medicine composition containing the oxytocin is good in stability, the oxytocin is unlikely to have degradation phenomenon in the storage process, impurities caused by oxytocin degradation are greatly reduced, and the security in clinical application of the oxytocin can be effectively improved. The medicine composition containing the oxytocin, which is disclosed by the invention, is simple in operation of a preparation method and applicable to scale production.

The invention relates to a stroke width figure based method for extracting Chinese character data from an image. The method comprises the steps of reading a colored image; clustering colors by the mean clustering algorithm to obtain a first binary image sequence; performing the edge detection algorithm and the morphological connected domain analysis method to obtain a second binary image sequence; filtering the combined sequence for the first time through a geometric filter to obtain a third binary image sequence; calculating a stroke width figure of the third binary image sequence; filtering the third binary image sequence for the second time according to the stroke width figure to obtain a fourth binary image sequence; overlapping all images in the fourth binary image sequence to obtain an extracted character result. Compared with the prior art, the method has the advantages that the distance of the color clustering algorithm can be adaptively selected by determining the image brightness value; the non-uniform illumination and other degradation phenomenon can be treated well; the traditional stroke width calculation method is improved to improve the performance of the character extracting technology.

The invention discloses an accelerometer signal denoising method based on particle filtering and wavelet transform. The accelerometer signal denoising method based on particle filtering and wavelet transform comprises the following steps: initializing particles, applying particle filter to a pretreatment portion of acceleration signal denoising, and retaining low entropy of wavelet denoising; calculating the weight of each particle according to the relation between an observation value and a pre-measured value, preliminary estimating the states of the particles according to the normalized weight, abandoning the particles with small weights, and overcoming degradation phenomena of the particles; transforming initial state estimation of acceleration signals to a wavelet domain, selecting a suitable wavelet basis and a suitable wavelet decomposition layer number, and carrying out wavelet decomposition on obtained initial state estimation: carrying out threshold quantifying on high-frequency coefficients of wavelet decomposition, and reconstructing state signals by various layers of coefficients of wavelet decomposition, wherein the reconstructed signals are denoised acceleration signals. By the method, noise distribution conditions of an accelerometer do not need to be considered, and the denoising degree is increased by increasing the number of particles of a particle filter device.

The invention discloses a preparation method of a gallium-doped polycrystalline silicon ingot. The preparation method comprises the following steps: (1) forming a silicon nitride coating on the inner wall of a crucible; (2) putting the polycrystalline silicon material and a gallium dopant in the crucible to obtain a mixture; (3) putting the crucible filled with the mixture into an ingot furnace, vacuumizing, and heating so that the mixture is gradually melted from top to bottom; (4) at the crystal growth stage, adjusting the temperature of a temperature control thermocouple in the ingot furnace and the upward moving rate of a side thermal insulating cage so that heat radiates downwards and consequently, and the molten silicon grows from bottom to top under a vertically upward temperature gradient; (5) annealing and cooling, thereby obtaining the gallium-doped polycrystalline silicon ingot. Experiments prove that the polycrystalline silicon ingot is long in minority carrier lifetime and low in dislocation density, a polycrystalline silicon solar cell prepared from the polycrystalline silicon ingot is capable of obtaining relatively high photoelectric conversion efficiency, and more importantly, the cell prepared from the polycrystalline silicon is free of light-induced degradation phenomenon.

The invention discloses an indoor positioning method based on particle filtering under the condition of non-Gaussian noises. The indoor positioning method comprises the following steps of modeling movement accelerated speed of an object and measurement noises into random vectors which obey Gaussian mixture distribution in a training stage by using a particle filtering method based on a suboptimum important function; and performing local linearization on a non-linear observation equation in a positioning state so as to obtain a suboptimum important function and a weight coefficient, change a degradation phenomenon in particle filtering and implement optimum estimation on state vectors. The indoor positioning method has the advantages that on one hand, compared with Gaussian noises, modeling of the Gaussian mixture model is close to actual conditions, and errors caused by model approximation can be reduced effectively; and on the other hand, the degradation speed of the weight coefficient in the particle filtering process can be increased through the solved suboptimum important function, the algorithm efficiency and the algorithm precision are improved, and the positioning precision is improved effectively.

The present invention provides an ultra steep average subthreshold swing nano wire tunneling field effect transistor and a method for preparing the same which belong to the field effect transistor logic device field of the CMOS ultra large scale integration (ULSI). The tunneling field effect transistor adopts a nano wire structure of core-multilayered shell, and the material band gap of a multilayered shell part is increased continuously along the radius direction of the nano wire. According to the present invention, a subthreshold slope degradation phenomenon in a device transfer characteristic can be restrained effectively, at the same time, an average subthreshold slope of the tunneling field effect transistor is reduced remarkably, and a more steep minimum subthreshold slope is kept.

The invention relates to a water-in-oil emulsion explosive, which is characterized in that the explosive contains ethylene vinyl acetate copolymer, has good storage stability, and is not easy to produce explosives even if it is stored under a load for a long period of one year. Phenomenon of performance degradation and curing, only slight, easily disintegrating curing occurs partially, and is also very suitable for water since it can be filled with a filling machine even after long-term storage and has good water resistance hole blasting.

The invention discloses a method for extracting agar from nori and asparagus, and belongs to the technical field of marine organism deep processing. The agar is extracted from raw materials includingnori or asparagus. The extraction method comprises the following steps: carrying out preprocessing, alkali processing, washing and acid bleaching processing on the nori or the asparagus, extracting refined filtration glue solution, and carrying out condensation and ageing and the like on the refined filtration glue solution. Anthracene derivatives are added in the alkali processing step, so that the reductive end group of agar molecules becomes stable, an agar degradation phenomenon caused by traditional high-temperature processing is weakened, and the yield of the agar is improved by 3%. In first bleaching, sulfamate can be added to weaken the oxidation of sodium hypochlorite for the agar molecules, and the gel intensity of the agar is improved by 300g / cm<2> or more. The extracted agar product is characterized in that the production cost of the agar product is lower than that of the similar product in the traditional market while the agar product has the advantages of quality and price, and the agar product more caters to the market.

The invention discloses an artificial medium of trichogramma. The artificial medium comprises the following ingredients in mass fraction: 19-40% of insect pupae hemolymph, 17-38% of egg yolk, 10-33% of milk, 4-19% of a Nissl salt solution, 0.8-8% of trehalose, 2-15% of a ganoderan solution with a mass fraction of 5% and 2-15% of a chitosan oligosaccharide solution with a mass fraction of 3.6%. By adopting the artificial medium of trichogramma, the breeding effect of trichogramma is obviously better than that of a traditional artificial medium through the trehalose, the ganoderan solution and the chitosan oligosaccharide solution via effective composition, and the content of insects can be reduced, so that the breeding cost of trichogramma is reduced. Through the artificial medium of trichogramma, trichogramma can be bred by subculturing, no degradation phenomenon exists, and the breeding effect is stable. By adopting the artificial medium of trichogramma, various kinds of trichogramma such as trichogramma dendrolimi, trichogramma confusum, Asian corn borer trichogramma, European corn borer trichogramma and geographical populations thereof can be bred, and good effects are realized.

The invention relates to the technical field of fruit tree plantation and concretely relates to a sand-sugar orange plantation method. The method comprises the following steps of (a) selecting and preparing a piece of land, (b) fixedly planting, (c) managing the field, (d) managing during blossoming and fruiting periods, and (e) harvesting and trimming. In the (a) step, the land is deeply ploughed, ripened and flattened in last winter before the plantation; and sand-sugar orange plantation caves are dug. In the (b) step, sand-sugar orange seedlings are fixedly planted; a ridge with the height of 15 to 25cm is piled surrounding the sand-sugar orange plantation caves; and fixed-plantation water is watered. In the (c) step, after the planted sand-sugar orange survived, trenches are dug in the ridge and ground fertilizer is applied; ground fertilizer and leaf fertilizer are applied in proper time and water is injected or drained; and disease and insects are prevented. In the (d) step, fruiting promotion liquid is sprayed during the last period of the blossom period; and fruits are thinned in time. The method adheres to sand-sugar orange growth features, can improve sand-sugar orange main output and sweetness, reduce acidity, and provides great taste; and continuous plantation cannot cause acidizing and hardening would-be degradation phenomena.

A non-aqueous electrolyte solution for a lithium secondary battery comprises a lithium salt and an organic solvent. The non-aqueous electrolyte solution further comprises a specific siloxane compound and a sulfonate compound. This non-aqueous electrolyte solution solves the capacity degradation phenomenon, which appears in a lithium secondary battery using a non-aqueous electrolyte solution containing only a specific siloxane compound when the lithium secondary battery is used for a long time, so this non-aqueous electrolyte solution is especially useful for high-capacity batteries.

The invention discloses a rapid accurate human face detection method. The rapid accurate human face detection method comprises steps that step 1: skin color segmentation thresholds are respectively set in CMYK color space, HSV color space, and YCbCr color space, and three thresholds are acquired for combination operation, and a threshold after the combination operation is used as the threshold for the skin color detection; step 2: the threshold after the combination operation is used for skin color segmentation pretreatment of an input image, and a human face detection candidate area is acquired; step 3: an MWR-AdaBoost algorithm is used for the human face detection of the candidate area, and the human face area is marked in the image. The combination operation of the skin color segmentation thresholds of the CMYK color space, the HSV color space, and the YCbCr color space is used for the pretreatment of the image to acquire the candidate area, and the problem of the skin color segmentation of easy missing of the human face candidate area in a complicated scene caused by using the single color space is solved; the MWR-AdaBoost algorithm is used for the human face detection of the candidate area, and the degradation phenomenon of the image after the skin color treatment caused by using the AdaBoost algorithm is inhibited. By using the method provided by the invention, the human face detection is completed rapidly and accurately.

The invention discloses a tunneling field effect transistor and a preparation method, and belongs to the field of a field effect transistor logic device of a CMOS (Complementary Metal Oxide Semiconductor) ultra-large scale integrated circuit (ULSI). A tunneling source region and a channel region of the tunneling field effect transistor are of heterogeneous structures in the vertical direction of the device; the upper layer is made of a semiconductor material with larger forbidden bandwidth; the middle layer is made of a semiconductor material with smaller forbidden bandwidth; the lower layer is a semiconductor substrate with the larger forbidden bandwidth. Compared with the prior art, the transistor and the method have the advantages that the degradation phenomenon of sub-threshold slope in device transfer characteristic can be effectively inhibited, meanwhile the average sub-threshold slope of the tunneling field effect transistor is obviously reduced, and steep minimum sub-threshold slope is kept.

The invention relates to a pseudomonas citronelloalis strain and application thereof in degrading estrogen, wherein the pseudomonas citronelloalis strain has the preservation number of CGMCC No.3634, can grow by using natural or synthetic estrogen as a unique carbon source, can efficiently degrade theelin (E1), 17beta-estradiol (E2) and 17alpha-ethinyl estradiol (EE2) and can be used for a micro-biological degradation technology for removing the estrogen. Under the culture condition of using the estrogen as the unique carbon source, the theelin and the 17beta-estradiol with the initial concentration of 2mg / L can be respectively degraded by 99 percent by the SS-2 strain within 36 hours, the 17alpha-ethinyl estradiol with the initial concentration of 4mg / L can be degraded by 93.6 percent within 168 hours, and estriol has no remarkable degradation phenomenon. The theelin is generated in the process of degrading the 17beta-estradiol, and the theelin is also gradually degraded. Because the pseudomonas citronellolis SS-2 strain has the characteristics of effectively degrading the natural and synthetic estrogen in an environment, the pseudomonas citronellolis SS-2 strain can be applied to an estrogen-contained waste sewage treatment technology or a soil remediation technology.

A method of storing a metal lanthanum sputtering target, wherein a surface of a metal lanthanum target to be stored is processed so as to achieve a roughness Ra of 1 μm or less, a lanthanum fluoride coating is formed on the surface thereof, the metal lanthanum target to which the lanthanum fluoride coating was formed is subsequently charged in a vacuum pack with an oxygen transmission rate of 0.1 cm3 / m2 per 24 h at 1 atm or less and a moisture vapor transmission rate of 0.1 g / m2 per 24 h or less, and the vacuum pack is thereafter subject to vacuum suction and sealing for storage. This invention aims to provide technology for enabling the long-term storage of a sputtering target in a usable state by devising the method of storing a metal lanthanum target as a rare earth metal, and thereby inhibiting the degradation phenomenon caused by the oxidation of the target due to residual air or the inclusion of air.

The invention discloses a rapid high-throughput screening method for oil-recovery microorganisms, belonging to the technical field of microbial enhanced oil recovery. According to the scheme I, the method comprises the following steps: (1) diluting a collected oil sample or water sample, coating an LB solid culture medium by virtue of the diluted oil sample or water sample, and culturing at 35-40 DEG C for 10-14 hours; and (2) inoculating a selected single microflora to an inorganic salt culture medium, adding liquid paraffin containing dyes, culturing at 35-40 DEG C for 4-48 hours, and observing whether a paraffin degradation phenomenon or oil extraction ring exists, if yes, the microorganisms are paraffin degrading bacteria or biosurfactant producing bacteria. According to the scheme II, the method comprises the following steps: (1) being same as the step (1) of the scheme I; (2) inoculating the selected single microflora to an LB liquid culture medium, carrying out fermentation cultivation, removing thalli to obtain clear liquid, and adding the dyes into the clear liquid; and (3) adding the clear liquid containing the dyes into intermediates of plant oil, standing, and observing whether the plant oil diffuses, if yes, the microorganisms are biosurfactant producing bacteria.

The invention provides a landfill type electrode structure suitable for a surface acoustic wave device. The landfill type electrode structure comprises a substrate, a groove and an electrode, whereinthe groove is formed in the surface of the substrate, and the electrode is arranged in the groove. The landfill type electrode structure provided by the invention can improve the degradation phenomenon of the metal film electrode at a high temperature, so that the stable working time of the electrode under a high temperature condition is prolonged; according to the landfill type electrode structure, the reflection coefficient and the electromechanical coupling coefficient of the surface acoustic wave device can be improved, the size of the surface acoustic wave device is reduced, and the bandwidth of the device is increased; for a surface acoustic wave device applied to pressure sensing, the landfill type electrode structure provided by the invention can increase the frequency pressure coefficient and improve the pressure sensitivity.

A method for dynamically judging precision exception of a winding drum of a reeling machine aims to find out a degradation phenomenon of the winding drum of the reeling machine timely. The method comprises the steps as follows: starting a wrapper roller of the reeling machine, and listening whether the winding drum makes a periodic sound; observing the monitoring picture of a man-machine interface of an operating board of the reeling machine; during the zero-calibration process, listening to the contact sound of the wrapper roller and the winding drum of the reeling machine on site; after the zero-calibration process, starting the wrapper roller of the reeling machine quickly, adjusting the roll bite of the wrapper roller capable of programming an automatic controller to minus 1 mm, and listening to the contact sound of the winding drum and the wrapper roller; after the zero-calibration process, starting the wrapper roller of the reeling machine quickly, adjusting the roll bite of the wrapper roller capable of programming an automatic controller to 2 mm, listening to the contact sound of the winding drum and the wrapper roller, and observing the current intensity of the winding drum picture; judging the dynamic accuracy of the winding drum according to a velocity curve of the winding drum of the reeling machine, and reeling up the head part of a steel coil for a range of 30 m to observe the feedback speed of the winding drum and to judge whether the precision of the winding drum of the reeling machine is normal or not, and then an accident of product quality can be avoided.

The invention discloses a method for interplanting watermelons with cotton, which relates to the technical field of planting and comprises the following steps: (1) deep plowing of land and application of basal fertilizer; (2) selection of varieties; (3) interplanting of seedlings; (4) field management. The invention provides a method for interplanting cotton with watermelon. Both watermelon and cotton are selected from high-quality varieties, and biological fertilizer is applied throughout the process. The cost is low and the management is convenient. Both watermelon and cotton can be harvested at the same time. , and can make full use of land and light conditions, improve the soil degradation phenomenon during monoculture, and bring good economic benefits to farmers.

The invention provides citrus flavor, a preparation method thereof and application thereof. The preparation method comprises the following steps: (1) mixing citrus essential oil and ethanol water solution, then cooling the mixture to between 10 and 20 DEG C, and standing the mixture for 1 to 2 months; (2) heating a product obtained in the step (1) to between 25 and 30 DEG C by adopting a program heating method at the program heating rate of 1 to 2 DEG C per day; (3) cooling a product of the step (2) to between 10 and 20 DEG C by adopting a program cooling method at the program cooling rate of 1 to 2 DEG C per day; and (4) filtering, and distilling a product of the step (3) under reduced pressure, and volatilizing the ethanol water solution to obtain the purified citrus essential oil, namely the citrus flavor. The citrus flavor obtained by the method has stable property, and does not produce floating oil and degradation phenomenon when the citrus flavor is added into a final product such as beverage.

Disclosed is a sharpness improvement apparatus of an image signal which improves a sharpness of an analogue image signal so as to display a clear image. A display device which displays an inputted image signal on a screen can display a clear image with a digital sharpness improvement apparatus which realizes a sharpness of the image signal into a digital method by improving a degradation phenomenon of a signal generated at an analogue image processing into a simple digital circuit.

Disclosed is a high-efficient and quick cultivation technique for gastrodia elata. After low-temperature 'dormancy' treatment is conducted on selected and remained gastrodia seeds, the selected and remained gastrodia seeds are cultivated according to a conventional method, and the degradation phenomenon in the process of artificial cultivation can be avoided. The concrete scheme includes the following steps: placing the gastrodia seeds in an environment with the temperature of 6 to minus 8 DEG C, like a refrigerating chamber of a common refrigerator, for dormancy for 7 to 28 days; or placing the gastrodia seeds in a ventilated environment with the temperature of 3 to 8 DEG C for 15 to 20 days. A worker had better cover the gastrodia seeds with wet sand during the period of the dormancy to avoid excessive water evaporation. The high-efficient and quick cultivation technique for the gastrodia elata is simple and easy to master and popularize, and the serious degradation phenomenon in the process of the artificial cultivation is effectively avoided. A gastrodia elata yield is greatly improved by more than two times compared to cultivated gastrodia elata which do not undergo the dormancy treatment, the gastrodia elata is good in quality, large in size, fine in color, free of pest disease damage, the weight of the largest gastrodia elata is 325 grams, and successive high yield can be achieved. Therefore, the high-efficient and quick cultivation technique for the gastrodia elata provides an ideal method for gastrodia elata high-yield cultivation and suitable for gastrodia elata cultivation in civil air-defense fortifications, indoor sites or other places.

Embodiments of the invention disclose a photovoltaic module-based degradation phenomenon processing method and related equipment. The method comprises the steps of applying a high-frequency signal toa photovoltaic module when the photovoltaic module suffers from a degradation phenomenon to protect the photovoltaic module and to suppress or remove the degradation phenomenon, wherein the degradation phenomenon is a power generation efficiency degradation phenomenon of the photovoltaic module under influence of potential. By adoption of the embodiments of the invention, the problems of lowered electric energy conversion capability, lowered power generation efficiency and the like of the photovoltaic module caused when the photovoltaic module suffers from a surface polarization phenomenon and / or a PID phenomenon in the prior art can be solved.