47results about How to "Reduce application risk" patented technology

The invention discloses a method for issuing messages by a message queue. The method includes (1) receiving a request that a message entering the message queue, acquiring parameter information of the message, determining the priority of the message according to the parameter information of the message and inserting the message into the message queue according to the priority of the message; (2) issuing the messages in the message queue according to the priority of the messages. By means of the method, the message dequeue time can be optimized, key business can be processed quickly, long time delay caused by lighter weight is avoided, system application risks are reduced, and real-time interaction experience of users is improved.

The invention discloses a golden finger connector and a mis-plug prevention device. The mis-plug prevention device comprises a golden finger connector and a plurality of printed circuit boards (PCBs). The golden finger connector comprises a connector body and a group of coding members, wherein a plug slot is arranged in the connector body, a plurality of containing grooves are arranged in the plug slot, and any coding member of the group of coding members can be plugged into any containing groove of the containing grooves. Any PCB of the PCBs corresponds to one combination of the containing grooves according to the type of the PCB, an open slot is arranged in any PCB, and the open slot in the PCB is matched with the coding member plugged in the containing groove when any PCB is plugged in the plug slot so as to enable the coding member to be embedded into the open slot in the PCB. According to the golden finger connector and the mis-plug prevention device, the PCB of each type can correspond to the golden finger connector of one structure through plugging different coding members in the golden finger connector, so that the mis-plug can be avoided, and the risk in application is effectively reduced.

The invention relates to a biocompatible bile acid sequestrant and its preparation method and application. The preparation method steps are as follows: (1) N-hexylallylamine is added dropwise in hydrochloric acid to obtain N-hexylallylamine hydrochloride; (2) N-hexylallylamine hydrochloride aqueous solution and Allylamine hydrochloride aqueous solution is mixed uniformly, adding initiator, polymerization reaction, obtains polymer precursor; (3) methyl-α-D-glucopyranoside is dissolved in deionized water, adds oxidizing agent, avoids photoreaction to prepare a dialdehyde crosslinking agent; (4) adding a dialdehyde crosslinking agent solution to the polymer precursor aqueous solution, stirring and mixing, and standing at room temperature for reaction to prepare a biocompatible bile acid chelating agent. In the preparation method of the present invention, the cross-linking agent only uses the biocompatible dialdehyde cross-linking agent obtained by oxidizing glycosides. In addition, no other toxic cross-linking agents are used, which has good biocompatibility and reduces risks of in vivo application.

The invention discloses a preparation method for starting a hydrogenation reforming device. The method is aimed at the start-up process of the external presulfided hydrofining catalyst containing dihydroxy compounds and the hydrogenation upgrading catalyst with large pore volume, especially the airtight process, and the constant pressure and temperature rise section, the constant pressure and temperature rise section and the constant pressure and temperature rise are set. In the section, the heat generated by the hydrogenolysis of sulfides and / or additives during the airtight start-up process is reasonably distributed, controlled and released stably, avoiding the occurrence of concentrated exothermic phenomena, and reducing the risk of overheating and overheating. The method of the invention completely solves the obstacles in the industrial application process of the combined catalyst, not only improves the use activity of the catalyst, but also eliminates the hidden danger of environmental protection caused by leakage of the vulcanizing agent, and has good application prospects.

The invention discloses a start-up preparation method for a hydrotreating device. The method is aimed at the start-up process, especially the air-tight process, of an off-site pre-sulfided hydrotreating catalyst containing sulfinyl compounds. By setting a constant pressure heating section, a constant pressure constant temperature section and a constant pressure heating section, the gas-tight start-up process is The heat generated by the hydrogenolysis of sulfide and / or auxiliaries is reasonably distributed and controlled, which avoids the occurrence of concentrated heat release and reduces the risk of over-temperature and overheating. The method of the invention completely solves the obstacles in the industrial application process of the catalyst, not only improves the use activity of the catalyst, but also eliminates the environmental protection hidden danger of leakage of the vulcanizing agent, and has a good application prospect.

The invention discloses a low-temperature-resistant preparation composition for production of cotton, a preparation method and a using method of the low-temperature-resistant preparation composition. The low-temperature-resistant preparation composition for production of the cotton comprises a preparation I and a preparation II; the preparation I comprises a low-temperature-resistant nutrient substance, a plant nutrition promoter, an antifreezing agent, a surfactant and water; and the preparation II comprises a low-temperature-resistant nutrient substance, a plant nutrition promoter, a plant growth regulator, a surfactant and water. The preparation I is mainly used at a seedling stage, and the preparation II is mainly used at blossoming and boll-forming stages. The preparations can well prevent and retard influence and harm of low temperature to production of the cotton, solve the problem of cotton plant growth retarding, cut production and the like caused by low temperature damage in a main cotton production region, guarantee production effectiveness and stable income of cotton planters, are simple in preparation process, easy and convenient to use, environment-friendly and obvious in effect, and can be widely popularized and used in cotton regions.

The invention discloses a method for utilizing sludge from a municipal sewage treatment plant as forestry soil matrix and belongs to the technical field of environmental protection. The sludge is utilized according to a composting method; the nutrition constituents in the sludge are fully utilized; the growth of trees is accelerated; the growth cycle of the wood is shortened; the yield of wood is increased; the harmful matters in the sludge do not participate in food chain cycle; and the application risk is smaller. The garden plants can accept high-concentration heavy metal, the poison symptom is difficult to occur, and the sludge is safer than vegetables and crops after the compost is applied to forest land, so that the utilization of the sludge for composting the forest land is wide in developing space.

The invention discloses a dual-beam antenna, which comprises a plurality of radiating elements, a reflection plate and feed networks. The radiating elements are fixedly arranged on the reflection plate; the reflection plate comprises a centrosymmetric trench-shaped structure formed by a horizontal plane and bent planes respectively arranged at both sides of the horizontal plane; an angle is set between each bent plane and the horizontal plane of the reflection plate; a left side bent plane and a right side bent plane of the reflection plate are respectively and fixedly provided with a row of the radiating elements along an axial direction; the horizontal plane of the reflection plate is fixedly provided with two rows of the radiating elements along the axial direction; the radiating elements on the bent planes of the reflection plate and the radiating elements located on the horizontal plane of the reflection plate and arranged next to the radiating elements on the bent planes are arranged crosswise; and the radiating elements on the bent planes and the radiating elements located on the horizontal plane of the reflection plate and not arranged neat to the radiating elements on the bent planes are arranged in an aligning manner. The dual-beam antenna disclosed by the invention has the advantages that the overall size is small, the windward side is small, and the practical application risk can be remarkably lowered.

The invention discloses a start-up preparation method of a hydrofining device. The method aims at the starting process of the ex-situ prevulcanization type hydrotreating catalyst containing the dihydroxy compound, and particularly in the airtight process, a constant-pressure heating section, a constant-pressure constant-temperature section and a constant-pressure heating section are arranged, so heat generated by hydrogenolysis of sulfide and / or auxiliaries in the airtight starting process is reasonably distributed and controlled, the phenomenon of centralized heat release is avoided, and therisks of over-temperature and temperature runaway are reduced. According to the method, obstacles in the industrial application process of the catalyst are thoroughly solved, the use activity of the catalyst is improved, meanwhile, the environment-friendly hidden danger of leakage of a vulcanizing agent is eliminated, and the invention has a good application prospect.

The invention discloses a high-suspension mineral gel low in heavy metals and cristobalite, comprising the following components by weight: 100 parts of clay minerals, 2-8 parts of inorganic alkali, 0.5-2 parts of sodium citrate and sodium pyrophosphate; The clay minerals are selected from one or more of attapulgite clay, bentonite, sepiolite, halloysite and imonite. The preparation method comprises the following steps: pulverizing and grinding clay mineral raw ore, adding an aqueous solution of inorganic alkali to mix, extruding into flakes; covering with a film, keeping the moisture and stacking for more than 10 days, adding water and beating to form an emulsion; passing through a vibrating sieve After dehydration, add water and dilute acid to the cake material to adjust the pH to 3-4, and then ultrasonically disperse; add a mixture of sodium citrate and sodium pyrophosphate and continue to ultrasonically disperse, then add water and alkali to adjust the pH to 7-8, then dehydrate and dry 1. Obtain the high-suspension mineral gel after crushing. The invention has the characteristics of firstly removing cristobalite, then removing heavy metals, and then adjusting charge to prepare gel, and can be applied to the fields of medicine, food, daily chemical and the like.

The invention discloses a start-up preparation method of a hydrotreating device. The method is aimed at the start-up process of the pre-sulfurized hydrotreating catalyst outside the device containing carboxyl compounds, especially the airtight process. A constant pressure and temperature rising section, a constant pressure and constant temperature section and a constant pressure and temperature rising section are set up, and the airtight start-up process sulfide and / or the heat generated by the hydrogenolysis of additives is reasonably distributed and controlled to avoid the occurrence of concentrated exothermic phenomena and reduce the risk of overheating and overheating. The method completely solves the obstacles in the industrial application process of the catalyst, not only improves the activity of the catalyst, but also eliminates the hidden danger of environmental protection of the vulcanizing agent leakage, and has a good application prospect.