34results about How to "Achieve spatial separation" patented technology

The invention relates to a production method and device of fine-grained low-chloride rare earth carbonate. The production method is mainly characterized in that rare earth chloride and a carbonate solution are added in a concurrent flow feeding way on a designed special precipitation reaction device, the spatial separation of a reaction zone and a crystallization zone is realized by controlling the feeding speed and discharging speed and controlling the aging time of rare earth carbonate, and thus the double purposes of directly obtaining a fine-grained low-chloride rare earth carbonate product from a hydrochloric acid medium by precipitation and realizing continuous production are achieved. By adopting the production method and device provided by the invention, the fine-grained rare earth carbonate product with the chloride content of less than 50ppm can be directly obtained from the hydrochloric acid medium by using cheap ammonium bicarbonate, the precipitation reaction device has a simple structure, and the continuous production can be realized.

The invention discloses an assembled type steel frame concrete box type unit structure system and a construction method thereof. The structure system comprises a foundation and an overground structure connected with the foundation; the overground structure comprises at least an upper-layer structure and a lower-layer structure which are vertically spliced through a steel frame; the steel frame is a groove-type horizontal steel frame which is preset on the spliced position of upper-layer and lower-layer wall face components and is embedded along the inner side of the bottom of the upper-layer wall face component in a through mode; a bottom vertical throwing rib of the upper-layer wall face component penetrates through the steel frame to be fastened through an upper flange plate sleeve; and a top vertical throwing rib of the lower-layer wall face component penetrates through the steel frame to be fastened through a lower flange plate sleeve. Box-type structure units of each layer of structure are connected into a whole in a mortise-tenon joint mode. The construction method of the structure system comprises the steps of designing and prefabricating of the box-type structure units, conveying of the box-type structure units to a site to be connected with a cast-in-situ part, connection between the box-type structure units, and the like. The assembly level of a building structure is improved, detachable connection is achieved, the construction speed is increased, and the wet construction on the site is reduced.

The invention discloses an in-situ soil body layered settlement monitoring device and method. The device comprises a circular base arranged on the top of an exploratory well and multiple settlement monitoring devices. Each settlement monitoring device comprises an anchoring mechanism, a settlement transmission mechanism and a settlement measuring mechanism, wherein the anchoring mechanism comprises a circular base and multiple steel nails, the settlement transmission mechanism comprises a measuring rope, a telescopic pipe and a protection pipe, and the settlement measuring mechanism comprisesa stand column, a pulley mechanism, a measuring scale and a balance weight. The method includes the following steps that firstly, the settlement measuring monitoring devices are installed; secondly, backfill consolidation is conducted; thirdly, the settlement measuring mechanisms are fixed and adjusted; and fourthly, layered settlement monitoring and data treatment are conducted. By means of the in-situ soil body layered settlement monitoring device and method, design is reasonable, the cost is low, time and labor are saved, installation is convenient, soil body deformation monitoring at different heights of an in-situ soil body is achieved, and practicability is high.

The invention discloses a partition control and point-by-point water inflow enhanced nitrogen and phosphorus removal (A/O/A)-MBR integrated process and a system thereof. A partition control and point-to-point water inlet operation mode is adopted, and the low C/N ratio domestic sewage is sequentially subjected to treatment processes comprising anaerobic phosphorus release treatment, aerobic phosphorus absorption and nitrification treatment, precipitation water outlet, denitrification nitrogen removal treatment and MBR nitrification and decarburization treatment according to the time sequence in a sewage treatment system. Partition control is carried out on the phosphorus removal process and the nitrogen removal process, space separation of phosphorus removal bacteria and nitrifying bacteria is achieved, the good growth environment of microorganisms in respective systems is guaranteed, and the problems of mud age contradiction, nitrate influence, complete separation of HRT and SRT and the like existing in a traditional process are solved; meanwhile, the problem of energy consumption of sewage treatment operation such as carbon source feeding is solved by adopting a point-by-point water inlet mode, and the purpose of efficient nitrogen and phosphorus removal is achieved. Meanwhile, the process has the advantages of good effluent quality, simple process, small occupied area, convenience in operation and the like.

The invention relates to an LED lighting unit with high thermal diffusivity and an adjustable light distribution light fitting applying the lighting unit. The invention relates the LED lighting unit which comprises a lamp body, an LED light source, an LED drive circuit board, a light transmission housing plate, a cover plate of the lamp body and end covers at the two sides of the lamp body; wherein, a plurality of LED light sources are arranged in the lamp body in array, the LED drive circuit board is arranged in the lamp body which is also provided with a plurality of rows of lattice-shaped heat conducting reinforcing rods that can effectively educe the LED light sources and the heat generated by the drive circuit board, and a revolving joint is arranged outside the end covers at the two sides of the lamp body; the adjustable light distribution light fitting comprises a mounting rack which is provided with a device that is fixedly connected a carrier and a device that is connected with the revolving joint of the LED lighting unit with high thermal diffusivity in an adjustable way. The LED lighting unit can ensure the service performance and the service life of the light fitting, improves the production efficiency and meets the requirements for distribution light in most of the time. The adjustable light distribution light fitting has convenient assembly, good universality, high installation efficiency, convenient maintenance and adjustable lighting angle.

The invention discloses a technology and a device for efficiently removing nitrogen and phosphorus from urban sewage with a low carbon-nitrogen ratio. The technology comprises a process of excessivelyabsorbing phosphorus by phosphorus removing bacteria, a process of ammonia nitrogen nitrosification and a process of anaerobic ammonia oxidation, the processes are carried out synchronously in sequence, and continuous water input and continuous water output are realized. The device comprises a regulating tank, an anaerobic tank, an aerobic tank, a mid-sedimentation tank, a partial nitrification reactor, an anaerobic ammonium oxidation reactor and a final sedimentation tank which are connected in sequence. The technology has the advantages of being simple in process, short in total hydraulic retention time, low in aeration rate, low in energy consumption, high in biological concentration, good in effluent quality and convenient to operate and manage and occupying a small area, and has great guiding significance for development of a new technology for treating the urban sewage with the low carbon-nitrogen ratio and upgrading of an existing treatment technology.

Disclosed is back surface field GaSb thermal photovoltaic cell. The thermal photovoltaic cell comprises a substrate, a back electric field layer, a back electrode, an active region and a front electrode, wherein the back electric field layer is manufactured on the back surface of the substrate; the back electrode is manufactured on the back electric field layer; the active region is manufactured on the upper surface of the substrate; and the front electrode is manufactured in the middle of the front surface of the active region, wherein the size of the front electrode is smaller than that of the active region. According to the thermal photovoltaic cell, an nn+ junction is added on the back surface of the cell, and a high-low junction electric field is formed with the original built-in electric field, so that a hole barrier is provided, and the collection efficiency of photon-generated carriers is improved by utilizing energy band engineering; and meanwhile, due to the fact that the doping concentration near the back electrode is high, the width of the barrier region is smaller, and run through of the barrier is performed by electrons via a channel tunnel, so that better ohmic contact is formed between the GaSb and the back electrode metal, thereby improving the efficiency of the cell.

The invention discloses a 5G-based cloud integrated high-intensity focused ultrasound telesurgery robot treatment system device and method. According to the invention, a control end is migrated to the cloud by utilizing the capabilities of large bandwidth, low time delay, high reliability and network slicing of 5G, and the 5G network is used for replacing a traditional cable to realize communication connection with a high-intensity focused ultrasound surgical robot at a treatment end, so that the space separation of doctors and patients is realized; and a doctor can carry out a remote operation which is not different from a traditional high-intensity focused ultrasound operation in a 5G environment. Meanwhile, software and hardware of the high-intensity focused ultrasound telesurgery robot body are decoupled through 5G-based cloud-side-end integration, so that the cost is reduced, more primary hospitals have the ability to purchase, and large-scale deployment becomes possible. The problems of difficult and expensive medical treatment caused by unbalanced distribution of medical resources can be reasonably solved to a certain extent.

The invention discloses a preparation method of TiO2 nanotubes with a controllable tube wall thickness, the preparation method is characterized by comprising the following steps of: (1) sequentially adding acetylacetone and tetrabutyl titanate into absolute ethyl alcohol to obtain a solution A; (2) adding polyvinyl pyrrolidone to the solution A to be completely dissolved to obtain a solution B; (3) dripping liquid paraffin into the solution B, and stirring for 48h to obtain a solution C; (4) filling the solution C into a syringe, performing electrostatic spinning under certain conditions, andcollecting a spinning product by using a stainless steel disc; and (5) after the spinning product is dried, calcining the spinning product at 500 DEG C in air atmosphere to obtain the TiO 2 nanotubes.According to the invention, the TiO2 nanotubes with different tube wall thicknesses are prepared by changing the ratio of the tetrabutyl titanate, the polyvinyl pyrrolidone and the liquid paraffin, and the light absorption capacity of the TiO2 nanotubes is further regulated and controlled.

The invention relates to a substrate for an LED submount, having a plurality of mounting slots on the substrate surface thereof, and a plurality of pairs, each consisting of an electric anode connection and an electric cathode connection, wherein the anode connections are disposed on a first side section of the substrate surface, and the cathode connections are disposed on a second side section of the substrate surface, comprising at least one connection distribution conductor, leading from a mounting slot to an electric connection past at least two further mounting slots.

The invention discloses an oxygen hole-containing BiOBr/TiO2 nanotube array composite electrode and a preparation method thereof, and application of the BiOBr/TiO2 nanotube array composite electrode to photoelectrocatalytic nitrogen fixation. The preparation method comprises the following steps: synthesizing vO-BiOBr powder by adopting a hydrothermal method, preparing a TiO2 nanotube array on a Tisubstrate by adopting an electrochemical anodic oxidation method, and loading the vO-BiOBr powder on the TiO2 nanotube array by adopting an electrophoretic deposition method to prepare the vO-BiOBr/TiO2 nanotube array composite electrode. The prepared vO-BiOBr/TiO2 nanotube array composite electrode is used as a working electrode, a Pt sheet is used as a counter electrode, Ag/AgCl is used as a reference electrode, an aqueous H2SO4 solution is used as an electrolyte solution, and a photoelectrocatalytic synthesis ammonia reaction can be carried out under the irradiation of a xenon lamp.

The invention belongs to the technical field of Internet of Things equipment storage and relates to terminal storage equipment for Internet of Things science and technology. In order to solve the problem that storage equipment does not have the fireproof capacity in the prior art,the invention provides the following technical schemes: the terminal storage equipment comprises a storage cabinet and an isolation plate fixed in the storage cabinet, a plurality of rear plates fixed to the rear wall of the interior of the storage cabinet are arranged above the isolation plate at equal intervals, a stepping motor is fixed at the lower side of the isolation plate, an output shaft of the stepping motor penetrates through the isolation plate and is fixedly connected with a long round rod penetrating through the multiple rear plates, a containing plate is arranged on the front side of each rear plate, a blocking plate is arranged on the lower side of each containing plate in a sliding mode, and a first rack is fixed to the lower side of each blocking plate. The equipment can be isolated, fire spreading is avoided; fire extinguishing treatment can be directly carried out; and the heat dissipation effect can be accelerated during normal use. The equipment is mainly applied to Internet of Things terminal equipment storage cabinets.

The invention discloses an integrated heating type germanium waveguide thermo-optical modulator structure and a preparation method thereof. The integrated heating type germanium waveguide thermo-optical modulator structure comprises a substrate; an intrinsic germanium thin film which is positioned on the substrate; a doped germanium thin film layer which is located on the intrinsic germanium thinfilm, wherein a first germanium waveguide, an optical beam splitter, a second germanium waveguide, a third germanium waveguide, an optical beam combiner and a fourth germanium waveguide are etched onan epitaxial layer formed by the intrinsic germanium film and the doped germanium film layer. The space separation of photon transmission and carrier transmission is realized, the heating efficiency is effectively improved, and the transmission loss is reduced.

The invention relates to a device and a method for synchronously removing sulfate, nitrite and organic matters in wastewater. The device sequentially comprises a water inlet device, a reactor and a three-phase separator from bottom to top, wherein the three-phase separator comprises a gas collecting hood, a sludge settling unit, an exhaust valve, a water outlet and an inspection opening; one end of the reactor is connected with the water inlet device through a water distribution plate, and the other end is connected with the sludge settling unit; water passing holes are formed in the water distribution plate by taking the central point as a circle center and outside a circular range with the diameter of 0.5-1.5 cm; the height-diameter ratio of the reactor is 14: 1-26: 1; the volume ratio of the reactor to the three-phase separator is 3: 1-3.5: 1; and the ratio of the height of the reactor to the height of the three-phase separator is 7: 3-8: 2. Space separation of functional bacteria is realized through a height-diameter ratio, the water distribution plate and sectional domestication so that multiple pollutants are synchronously removed in one reactor; no filler is added into the reaction zone so that efficient transmission of elemental sulfur particles is guaranteed, and secondary pollution is reduced.