678results about How to "Guarantee quality and safety" patented technology

The invention discloses a shield construction method of digging three parallel tunnels under a trunk railway, which belongs to the field of tunnel construction technology. The construction method of the invention comprises the procedure that: the model analysis on each construction sequence and method is made by a three-dimensional finite element and the shield construction sequence is selected; to select the reinforcement project of the railway bed is selected according to the influence degree of the dynamic stress, the load-carrying structural model is adopted to calculate and decide the shield area reinforcing bars enhancement project under the dynamic load of the railway train; the construction parameters are selected according to the test results and the performance of the shield machine, the front earth pressure is reasonably set , the synchronizing mortar injection is enhanced, the forward digging speed and the axis deviation are strictly controlled, the secondary mortar injection is made, the foam or mud is filled by utilizing a pre-embedded injection hole; the strict monitoring measures to monitor the shield construction process is adopted so that the construction unit can adjust the construction parameters in time and guarantee the construction safety. The invention not only guarantees the construction quality and the construction safety of the project but also creates good economic benefit.

The invention discloses a fish fillet freshness detection method based on hyperspectral imaging. The method comprises the following steps: measuring fish fillet samples stored for different days according to a traditional national standard method; scanning the hyperspectral information of the corresponding fish fillet samples by utilizing a hyperspectral imaging system, and preprocessing a hyperspectral image; establishing a regression equation between a freshness index TVB-N value and the fish fillet freshness with hyperspectral characteristic wavelength, detecting the fish fillet samples to be detected, and calculating the freshness of the fish fillet samples to be detected. The optimal wavelength is selected and the freshness of the fish fillet samples are rapidly and nondestructively detected by employing the hyperspectral imaging technology, the time required for a traditional method is obviously reduced, the detection efficiency is improved, and the purpose of rapid, nondestructive and online detection can be effectively fulfilled.

The invention discloses a kiwifruit tree planting method. Connected greenhouses are used for cultivation, greenhouse films and arrangement of the greenhouses are adjusted along with change of seasons, the four-prevention measures including anti-freezing measures taken in winter and spring, rain sheltering and disease preventing measures taken in the rainy season, and cooling and sun blocking measures and windproof measures taken in midsummer are adopted, matched labor-saving tree cultivating management is performed, the capacity for coping with extreme weather in rainy and high-temperature areas in the south is effectively improved, and the high temperature and high humidity disease problem and the like which are difficult to solve in open field cultivation and traditional facility cultivation are solved. Due to the adoption of the method, the kiwifruit disease transmission route can be effectively cut off, input cost is low, manpower is saved, the survival rate of kiwifruit trees reaches 95.2%, the average single weight of red kiwifruits can reach 86 g under the situation that no swelling agents are applied, and the largest single fruit weight reaches 103.5 g; the soluble solid reaches 17.4% to 19.1%; the fruit cleanness is obviously improved, use of swelling agents and high-poison and mediate-poison pesticide is effectively eradicated, and quality safety of the fruits is guaranteed.

The invention relates to a processing method of a concentrated sugarcane juice. The processing method comprises the following steps: aiming at the difference of the proportions of nutrient contents and flavor substances contained in sugarcane meat and sugarcane skins, respectively processing the sugarcane and the sugarcane skin into a concentrated sugarcane meat juice and a clarified sugarcane skin juice, and mixing and homogenizing to obtain the concentrated sugarcane juice. The processing method comprises the following specific steps: peeling the sugarcane to the obtain the sugarcane meat and the sugarcane skins, firstly carrying out squeezing, enzyme pre-destruction and sterilization, rough filtration, enzymolysis, ceramic membrane ultrafiltration and vacuum concentration on the sugarcane meat, then carrying out squeezing to obtain the concentrated sugarcane meat juice, carrying out enzyme pre-destruction and sterilization, rough filtration, enzymolysis and ceramic membrane ultrafiltration on the sugarcane skins to obtain the clarified sugarcane skin juice, finally mixing and homogenizing the concentrated sugarcane meat juice with the clarified sugarcane skin juice, and carrying out high-temperature instant sterilization, so as to obtain the concentrated sugarcane juice. The concentrated sugarcane juice prepared by virtue of the processing method is clear and transparent, has aromatic flavor and fresh, sweet and delicious taste, the original flavor and nutritional ingredients of the sugarcane are maximally preserved, and precipitation and a turbid phenomenon are avoided in a storage period.

The invention provides a self-blended beverage composition. The self-blended beverage composition comprises a blending assembly and aqueous-based liquid, wherein the blending assembly and the aqueous-based liquid are respectively and independently packed and stored in the same packing box, packing bag or packing bottle at the same time, or fixed in a sticking manner, fixed by a label, or fixed together by a packing kit; and the ratio by weight of the aqueous-based liquid to the blending assembly is 2 to 1, and the aqueous-based liquid comprises water or liquid of which the water content is greater than 65%. The invention further provides a dual-blended beverage composition comprising a blending assembly A, a blending assembly B and the aqueous-based liquid. The self-blended beverage composition disclosed by the invention effectively solves the problems that a conventional beverage is poor in stability and freshness caused by storage after dilution with water, and the stability and thesafety of products are greatly improved. In addition, the consumers participate in the making process of the beverage, food and drink mood is optimized, selectivity for appropriately adding the blending assembly according to requirements of people can be provided for consumers, and requirements for individual beverages are met.

The invention discloses a high speed railway bridge bearing anchoring mortar material with is blended from components of, by weight: 37 to 45% of sulphoaluminate cement, 0 to 8% of Portland cement, 0 to 5% of an addition, 45 to 55% of graded river sand, 0.04 to 0.18% of a solidification retarder, 0.05 to 0.12% of an accelerant, 0.15 to 0.4% of a water reducing component, 0.05 to 0.15% of a defrothing component, and 0 to 0.1% of fiber. The material provided by the invention is specially used in anchoring and grouting of high speed railway bridge pot rubber bearings. The material has characteristics of good fluidity, high early strength, good filling properties, no strength reversing in later stage, low cost, convenient application, and the like. The material also can be applied in large equipment installation and pavement rush-repairing.

The invention relates to a method suitable for width measurement and centering of a rough rolling slab in a hot rolling mill, which belongs to the technical filed of steeling rolling computer control. The method mainly comprises the following steps of: 1, controlling a left guide plate and a right guide plate to arrive holding positions; 2, controlling the left guide plate and the right guide plate to move towards the direction of a rolling central line synchronously until contacting and patting a blank plate; 3, when the contact pressures of the left guide plate and the right guide plate, and the blank plate reach a predetermined value; recording the distance between the left guide plate and the right guide plate and the blank plate; 4, taking the recorded distance value as an actual width measurement value of the blank plate which is used for performing on-line control on rolling parts including a vertical roller; and 5, controlling the left guide plate and the right guide plate to return to guide positions. By adopting the method of the invention, original side plates which only have a guiding effect can play a role in patting the blank plate and ensuring the blank plate to be centered, and can be used as a detection device for measuring the actual width of the blank plate accurately, so that an error action caused by data error is avoided and the performance of equipment is remarkably enhanced without adding equipment investment hardly.

The invention discloses a process for excavating and constructing soft rock tunnels. Each constructed soft rock tunnel comprises two tunnel portal sections and a tunnel trunk section. Each tunnel trunk section is arranged between the two corresponding tunnel portal sections in a connected manner, surrounding rock level of two tunnel portals of each constructed soft rock tunnel is V level, surrounding rock level of each tunnel trunk section is IV level, and entrances and exits of the constructed soft rock tunnels simultaneously start to be constructed and are constructed in opposite directions. The process includes constructing procedures of firstly, determining methods for excavating the tunnel trunk sections, to be more specific, simulating excavating and constructing procedures by the aid of tunnel excavating and constructing simulation software, and determining the methods for excavating and constructing the tunnel trunk sections according to simulation results; secondly, excavating and constructing the tunnels, to be more specific, dividing each soft rock tunnel to be constructed into a plurality of sections from the rear of the corresponding tunnel portal to the front and starting to excavate and construct the multiple sections. The tunnel trunk sections are excavated in the excavating and constructing procedures by the aid of full-section techniques. The process has the advantages of simple steps, reasonable design, convenience in construction, good service effects, safe constructing procedures and capabilities of easily and conveniently completing the soft rock tunnel excavating and constructing procedures and guaranteeing the construction periods.

A steam oven for cooking food placed in a vacuumized and sealed pouch comprises an user interface and an electronic control unit adapted to select a predetermined heating temperature on the basis of a food category chosen by the user and of a maximum predetermined load of food for each sealed pouch, and to select a heating time according to a predetermined reduction of food pathogens.

The invention discloses a logistics turnover box with high stability. The logistics turnover box with high stability comprises a box body, connecting rods and four anti-collision blocks. The lower endof the inner surface of the box body is fixedly connected with a fixed rod, a supporting plate is arranged at the upper end of the fixed rod, first movable rods are arranged on the outer surface of the bottom end of the supporting plate, first springs are fixedly connected with the bottom ends of the first movable rods, and first sliding grooves are formed in the inner surfaces of the box body. Accommodating grooves are formed in the inner surfaces of pressing plates, the anti-collision blocks are arranged at the bottom of the box body, the bottoms of the anti-collision blocks are fixedly connected with bearing blocks, and handles are arranged on both sides of the box body. The logistics turnover box with high stability is provided with movable baffles and pressing blocks so that the device can be stably fixed when articles are stored, and the situation that the articles in the box body are dumped and broken during the transfer process is avoided; and the stability of the device is effectively improved by cooperating the four anti-collision blocks provided with the bearing blocks at the bottom.

The invention discloses a combined prevention and control method for cadmium exceeding of rice in medium-light cadmium-polluted soil. The method comprises the following steps of: uniformly spreading a soil passivant onto the surface of medium-light cadmium-polluted soil before ploughing and fertilizing the medium-light cadmium-polluted soil; uniformly stirring; balancing for over three days, and applying a basic fertilizer; transplanting low-cadmium-absorption paddy rice onto soil to which the basic fertilizer is applied; and adopting a flooding irrigation management measure at the infertility period of the low-cadmium-absorption paddy rice to complete combined prevention and control of cadmium exceeding of rice. The method disclosed by the invention has the advantages of low cost, environment friendliness, saving in resources, easiness in operating, and the like, the biological effectiveness of cadmium in acid heavy metal-polluted soil can be effectively lowered, and cadmium accumulation of rice is reduced.

The invention provides a paddy rice producing production technology for removing pesticide residue, and relates to the technical field of the processing and the producing of food, wherein the production technology comprises the following steps of: cleaning paddy, separating hull grains from hulled materials, removing the pesticide residue by means of coarseness humidifying, milling rice, removing the pesticide residue in a polishing way, and removing the pesticide residue by ultrasonic wave. The paddy rice producing production technology for removing the pesticide residue provided by the invention combines with the production of paddy rice producing, mainly aims at solving the problem that the paddy contains the pesticide residue, is scientific in technological process design, reasonable in technical method, and low in production cost, effectively and reliably removes the pesticide residue, can subsidiarily kill the toadstool in the paddy, can produce the paddy clearly, guarantees the quality safety of paddy-processed products, is free from secondary pollution of rice products in the process of processing and producing, can not change the original quality, nutrition and special flavor of the paddy, is particularly suitable for preparing the products which are higher in nutrition value and economic value such as germ-remaining rice, the clean rice and the like besides the common rice, and is further good for reducing the pesticide residue of byproducts prepared by comprehensive utilization.

The invention provides a preparation method of a standard sample for testing a phthalic ester plasticizer. The preparation method comprises the following steps of: uniformly mixing a phthalic ester plasticizer serving as a target compound with a stabilizer, a lubricant and the like to form a mixture; stirring the mixture and a substrate material at a high speed; stirring, cooling, extruding and blowing to obtain a film of which the thickness is 25-30 mum; and performing serial processing on the film to obtain the standard sample. The invention has the advantages: the standard sample for testing the phthalic ester plasticizer is obtained with the preparation method which is easy and convenient to operate, the comparability and consistence of detection data of the phthalic ester plasticizer in plastic among laboratories are improved, and a basis for uniformly testing the standard of the phthalic ester plasticizer in plastic is laid.

The invention discloses a loop-mediated isothermal amplification detection primer group, a detection method and a kit of vibrio parahaemolyticus. The detection primer group is as follows: an upstream outer primer F3: 5'-GCAAAGAAACGCTTGGCG-3', a downstream outer primer B3: 5'-TGCATAGCAATGTTGTCGCT-3', an upstream inner primer FIP: 5'-TCTCTCGGGTGGTGGATGGGTTTCGTTACACTCCGTTCGC-3'; a downstream inner primer BIP: 5'-ATGGTTTGCTACTCTCGCACCCTCGGCTGACAAATGGCTCTA-3'. The detection method disclosed by the invention has the advantages of high sensitivity, high specificity, good accuracy rate and short detection time, only 12 hours are taken from sample treatment to result report, no PCR instrument or electrophoresis instrument is needed, the operation process is simple, and compared with other PCR techniques, the loop-mediated isothermal amplification detection primer group is relatively high in specificity and is applicable to detection of primary testing organizations and food companies.

The invention discloses a full-automatic double-work-station circumference welding machine, comprising a power source, a framework, a welding gun arm, a control box and two trays. Cylinder compaction units are disposed above the two trays respectively, and a continuous speed regulation electric motor and a worm-gear speed reducer are mounted under the trays respectively. A double-work-station welding set is used to enhance working efficiency greatly. The invention is provided with a reasonable design, the speed of welding can be adjusted by the continuous speed regulation electric motor, and the welding quality can be adjusted at the same time. The auto control system is designed according to electronic cam principle and is provided with good stability, for controlling each acting member by an electronic sensor to form a circulating device, thereby automatic circulation effect is realized.

The invention discloses a soil heavy metal ion absorbent and a preparation method thereof. The soil heavy metal ion absorbent is prepared by mixing modified corn straws, modified kaolin and potassium humate in a mass ratio of 2 to 5 to 3; the modified corn straws are mainly formed by drying, alkali treatment, acid treatment and drying; the modified kaolin is mainly formed by adding sodium polyphosphate and then roasting. The soil heavy metal ion absorbent disclosed by the invention can be used for obviously enhancing the absorption capability of soil to heavy metal and reducing the migration of the heavy metal in the soil to crops. Tests show that the average lead reducing rate in corn kernels is 15.63%, the average cadmium reducing rate in the corn kernels is 12.15%, and the average arsenic reducing rate in the corn kernels is 7.62%. The average lead reducing rate in rice is 17.8%, the average cadmium reducing rate in the rice is 17.27%, and the average arsenic reducing rate in the rice is 21.84%, and the quality of edible part of the crops is guaranteed.

The invention belongs to the field of electric equipment management, and in particular relates to an electric equipment control and management method for performing double control on the power load of users under the condition that a power grid is often in overload operation. The equipment control and management method needs to arrange a control center for regulating and controlling overall situations by an independent power producer; the control center is communicated with circuit control devices of circuit branches through a communication network, and not only can receive information from the circuit control devices, but also can send certain instructions to the circuit control devices; and the instructions include modifying setup parameters of the circuit control devices, and commanding the circuit control devices to open circuits and other actions. The method can provide the control center arranged by the independent power producer to control the circuit control devices in various circuit branches of the users to integrally control the load of the power grid, and regulate and control the load of the users through intelligent type circuit control devices arranged in the circuit branches of the users.

The invention provides a soil amendment for reducing fluorine content of fresh brick tea leaves, and belongs to the technical field of fluorine reduction of fresh leaf raw materials in tea gardens. The soil amendment comprises: by weight, 158 to 476 parts of dolomite powder, 15 to 55 parts of quicklime, 50 to 150 parts of turf and 4 to 12 parts of potassium chloride. The invention also provides amethod which aims mainly at reducing fluorine content of fresh brick tea leaves, and utilizes reasonably dolomite powder, quicklime, turf and potassium chloride. Dolomite powder and quicklime in the soil amendment can improve obviously a pH value of acid soil, and change an existence form of fluorine in soil. Turf (meadow peat) in the soil amendment is an organic matter ore body formed by yearly accumulation of half-rotten plants, is rich in humic substances, and has strong adsorbability and permeability. Potassium chloride in the soil amendment contains chloride ions and monovalent anions ofan element which is congeneric with fluorine, and can influence the effectiveness of fluorine in soil and the absorption of fluoride ions by tea trees.

Disclosed are a multi-casing structure capable of facilitating the bridge-pile construction in cavern development areas and a construction method thereof. The multi-casing structure is characterized in that the thicknesses of steel plates of casings are computed through material mechanics formulas; the length of an internal casing is spliced into the designed depth of the pile foundation of a bridge-pile according to the thicknesses of required steel plates; the length of an external first casing is spliced into the distribution depth of an underground cavern though a plurality of groups of steel casings; and the diameters of the casings are designed into that the inner diameter of the internal casing is equal to the designed pile diameter of the bridge-pile and the diameter of the external first casing is 25-35 centimeters larger the designed pile diameter of the bridge-pile during a dual-casing construction. The construction method comprises transporting every groups of the casings to the position of a pile hole though a 25-ton crane; hoisting a first group of the casing to settle through a 60-ton main crane; penetrating a steel bar manually and placing a steel casing on a #-shaped frame; changing slings; hoisting a second group of the casing; subjecting the pile hole to welding; subjecting the steel casing to a second assembly; hoisting the steel casing up lightly; and disassembling the steel bar to enable the steel casing to settle. Therefore, the problem of severe over-quantity of concrete of the bridge-pile construction in the cavern overdevelopment areas is completely solved, and the construction cost can be effectively controlled under the premise of guaranteeing the construction quality and the construction security.

The invention provides a support assembly and a construction method of a cast-in-place box girder. The support assembly of the cast-in-place box girder comprises a temporary buttress prefabricated base and a temporary buttress, wherein the temporary buttress prefabricated base is a reinforced concrete prefabricated member, and the temporary buttress is fixedly arranged on the temporary buttress prefabricated base. The construction method of the cast-in-place box girder comprises the following steps of: treating a temporary buttress foundation: pre-treating the ground for paving the temporary buttress prefabricated base to be the temporary buttress foundation; setting up the temporary buttress prefabricated base with a reinforced concrete structure on the temporary buttress foundation and pre-pressing and treating on the temporary buttress foundation after the temporary buttress prefabricated base is set up; mounting the temporary buttress on the temporary buttress prefabricated base; and mounting a sequined beret on the temporary buttress. The invention reduces the engineering cost and is beneficial to ensuring the engineering quality.

The invention discloses a method for monitoring the work attitude and safety of hoisting operation of a floating crane, comprising the following steps: acquiring initial data of floating crane attitude relative to a vertical reference coordinate system in real time; judging the hoisting operation work attitude of the floating crane; performing azimuth shift control on the floating crane; performing trim control on the floating crane; and performing heeling control on the floating crane. Real-time and accurate monitoring on the work attitude of the floating crane can be realized via the method for monitoring the hoisting operation work attitude of the floating crane obtained from the technical scheme, and simultaneously corresponding devices are controlled to perform corresponding adjustment on the floating crane so as to ensure the hoisting construction operation quality and safety of the floating crane.

The invention discloses an ion exchange treatment technology of wastewater containing hexavalent chromium, the ion exchange treatment technology combines the regulation of pH value of the wastewater, the absorption, the regeneration, the maintenance and the recovery of Cr<6+> ions, thereby realizing the automatic treatment of the Cr<6+> ions in the wastewater containing the chromium; the technology of the invention has high degree of automation and good treatment effect and can be applied in the large-scale water treatment; chromium removing columns are designed to three columns or multiple columns, intermediate tanks which can regulate the pH value are arranged among various ion exchange columns, when two columns or multiple columns are connected in series for working, the pH value can be regulated during the intermediate process, thereby ensuring the wastewater treatment effect to be better and being capable of overcoming the problem that the pH is changed due to the change of the concentration of the ions during the conventional ion exchange process, thereby causing the decrease of the absorption ability of the ions by the resin; the outlet water quality can stably maintain the Cr<6+> to be less than 0.5mg/L; ion exchange resin can be effectively maintained and be stably worked for a long time; regenerated liquid can be recovered, thereby saving resources.