1956results about How to "Small amount of work" patented technology

An improved method and apparatus for creating a snapshot of a file system. A record of which blocks are being used by a snapshot is included in the snapshot itself, allowing effectively instantaneous snapshot creation and deletion. The state of the active file system is described by a set of metafiles; in particular, a bitmap (henceforth the “active map”) describes which blocks are free and which are in use. The inode file describes which blocks are used by each file, including the metafiles. The inode file itself is described by a special root inode, also known as the “fsinfo block”. The system begins creating a new snapshot by making a copy of the root inode. This copy of the root inode becomes the root of the snapshot.

Disclosed is a construction method for lifting whole spatial grid roof structure, pertaining to the technical field of lifting a spatial grid roof structure. The spatial grid roof structure at which the method aims is composed of the connection of node spheres and tie bars; the whole spatial grid roof structure is supported and fixed by an upright column. The construction method is characterized by comprising the steps that: arranging a bearing upright column, connecting a lower girder, adjusting a radius rod, lifting an upper girder, installing a jack, arranging a bending- resistant lead, removing the original connection of the spatial grid roof structure, starting the jack to jack the whole spatial grid roof structure, padding the upper girder and jacking again, lengthening a connecting upright column and removing jacking facilities. The construction method adopts the combination of a hydraulic jack and girder multipoint supporting structure and directly jacks the whole spatial grid roof structure, which can shorten construction period, reduce construction amount as well as makes full use of the original structure; the construction method has components and equipment which are easy for manufacturing and convenient transportation and assembly, reduces project expenses, is fast and highly efficient, has low expense and is applicable to the heightening improvement of spatial grid roofs with various structures, such as circle, polygon, irregular odd shape, etc.

The invention discloses a prefabricated bamboo composite pipe gallery, which is formed by connecting a plurality of prefabricated pipe joints, wherein each pipe joint comprises a pipe body, a force bearing mechanism, vertical supporting beams, a horizontal supporting beam and pipeline supports; the pipe body radially comprises a liner layer, a structure layer and an outer protection layer from inside to outside in sequence; the liner layer comprises flame-retarded resin and flame-retarded fabrics; the structure layer at least comprises a plurality of bamboo skin layers which are bonded with water soluble resin; the outer protection layer at least comprises flame-retarded resin; and the force bearing mechanism is fixed to the inner surface of the pipe body. The invention also discloses a method of manufacturing the prefabricated bamboo composite pipe gallery. The method comprises the manufacturing of the pipe body. The preparation method of the pipe body comprises the steps: (1) the liner layer is manufactured; (2) the structure layer is manufactured; and (3) the outer protection layer is manufactured. According to the invention, bamboo is utilized to manufacture a prefabricated pipe gallery, so that the intensity is good, the weight is light, the cost is low, the impermeability is good, the antiknock characteristic is strong, the construction is convenient, and the technical problems that the existing comprehensive pipe gallery consumes too many materials, the construction project amount is large, the construction period is long and the construction cost is high are solved.

The invention relates to a precast assembly process of a prestressed concrete cylindrical hollow pier. The traditional process has the defects that construction period is longer, the cast-in-situ construction is greatly influenced by environment, and the construction quality can not be controlled easily. The precast assembly process of the prestressed concrete cylindrical hollow pier, which is provided by the invention, mainly comprises the following ten steps of: preparing a precast component, casting a bearing platform in situ, installing a transition section, installing a standard section, installing a pier top section, stretching a prestressed thick steel bar and anchoring at the part of a stretching and anchoring construction groove, grouting, casting concrete at the part of the prestressed stretching and anchoring construction groove at the upper end of the pier top section, protecting the anchoring end of the prestressed thick steel bar in a sealing way, and the like. The invention can save a large number of building materials, fully exert the action of high-strength materials and simultaneously shorten the construction period, is beneficial to quality control, and has high construction efficiency.

A method for treating the As-polluted soil features that the Chinese brake herbs are planted in said soil for absorbing the As from the soil and the their leaves are removed periodically (5-6 months). For acid soil, the lime or alkaline fertilizer can be applied to increase its pH value.

The invention relates to a steel tube concrete column-double-layer steel plate combined shear wall belonging to the technical field of constructional engineering and combination structures. The steel tube concrete column-double-layer steel plate combined shear wall comprises two steel tubes, two steel plates, distributed reinforcing steel bars, connecting keys, male pins and concrete, wherein the connecting keys are vertically and alternately arranged at the opposite sides of the two steel tubes; both ends of each of transversally distributed reinforcing steel bars in the distributed reinforcing steel bars are respectively connected with the connecting keys in corresponding positions on the two steel tubes; the male pins are welded on the opposite sides of the two steel plates; two lateral ends of the two steel plates are connected with the steel tubes; and concrete is cast in the two steel tubes and in a planar closed space encircled by the two steel plates and the two steel tubes. The shear wall of the invention can restrict the concrete from deforming, improve the bearing capacity and the tensility of the shear wall and enhance the whole quake-proof performance of the structure. Moreover, the shear wall has favorable stress performance and improved quake-proof performance, is favorable to engineering of building space arrangement, decreasing self weight and reducing template engineering and is suitable for being used as a shear wall in a high-rise or ultra-high-rise building.

The invention relates to an integral displacement method for a building, which comprises the steps of translating the building and jacking the building, wherein translating the building is to install hydraulic jacks with adequate quantity between an upper sliding beam which is used for supporting the building and a lower sliding beam which is used as a slideway, and to ensure that the building slides on the slideway along with the hydraulic jacks, and the building is kept steady by controlling hydraulic pressures of the hydraulic jacks at corresponding positions according to the level degree of the surface of the slideway during the sliding. The integral displacement method for the building overcomes the defects existing in the prior integral displacement method for the building, and has the advantages of ensuring that the building has steady movement, high movement speed and accurate movement; and the integral movement of the building by the method has low engineering cost, short period and high quality.

As hierarchical distributed system with open-ended characteristic, the basic frame comprises: the first layer as sensor unit, the second layer as on-line monitor terminal, the third layer for substation monitor, and the fourth layer for bureau monitor. This invention uses uniform communication protocol, and reduces investment and daily maintenance.

The invention discloses an ultrahigh-performance-concrete arch rib and a prefabricated component manufacturing method thereof. Ultrahigh-performance concrete is adopted to manufacture arch rib prefabricated components, and the arch rib prefabricated components are spliced to be the arch rib. An arch ring is composed of two separated arch ribs, the arch rib prefabricated components are connected by adopting single-step-type glued joints, multiple reserved holes are formed at one end of each arch rib prefabricated component, and multiple connecting rods matched with the reserved holes in size are fixed at the other end of each arch rib prefabricated component. Before hoisting, sufficient epoxy resin is smeared on arch rib prefabricated component ports, the reserved holes and the connecting rods; during hoisting, the connecting rods at one end of one of each two arch rib prefabricated components are inserted into the reserved holes at one end of the other arch rib prefabricated component. By the method, quick assembling of the arch ribs within short time can be guaranteed, and construction quality of the arch ribs and durability of a whole bridge are ensured.

The invention relates to an oil tea tree seedling culture medium, which is mixture of oil tea seed shell composted matters, garden soil and pearlite which are evenly mixed. The volume ratio of oil tea seed shell composted matters to garden soil to pearlite of the mixture is (4-6): (1-3): (0.5-2). The garden soil is crushed soil. The oil tea seed shell composted matters are composted materials of waste oil tea seed shells obtained after oil tea processing. The medium is used for culturing oil tea trees. The oil tea tree seedling culture medium provided by the invention has the advantages that the physical and chemical properties of the original single-component medium are improved, the dust and the oil tea seed shells produced at an oil tea seed cleaning section can be used and the price is low; the problem that a nonrenewable medium, i.e. turf is greatly used for oil tea tree seedling production at preset is fundamentally solved; and on the premise that the quality of oil tea tree seedlings is guaranteed, the costs of grease factory production and waste treatment are decreased, and the social, economic and ecological benefits are remarkable.

The invention belongs to a prestressed concrete and steel combined tower on which a self-support wind generator set can be assembled and an anchoring method of the prestressed concrete and steel combined tower. The prestressed concrete and steel combined tower comprises a fan foundation and a steel tower cylinder section above the fan foundation and further comprises a prefabricated concrete tower cylinder section and a prefabricated concrete conversion section, and the fan foundation, the prefabricated concrete tower cylinder section, the prefabricated concrete conversion section and the steel tower cylinder section are sequentially connected through prestress anchor sheaves in the sequence from bottom to top. According to the prestressed concrete and steel combined tower on which the self-support wind generator set can be assembled and the anchoring method of the prestressed concrete and steel combined tower, a tower used for the wind generator set is divided into the concrete part and the steel part which are connected through the prefabricated concrete conversion section, and concrete is in a pre-compression state through tensioning of the internal and external prestress anchor sheaves. The concrete tower cylinder section is divided into a plurality of sections according to an actual project and formed by prefabricating and splicing in the sequence of ring pieces-ring sections-segments. The prestressed concrete and steel combined tower has the advantages of being good in quality, low in manufacturing cost, convenient to maintain and the like, the construction method is simple, and the construction speed is high.

The invention discloses a method for reinforcing a roadway floor by grouting in the way that the roadway floor is buried before the grouting, which is suitable for supporting projects of roadways in coal mines. The method comprises the following steps of: excavating the roadway floor during the excavation of a roadway to form a reverse arch; constructing a plurality of grouting drill holes at equal intervals along the section of the reverse arch perpendicular to the camber lines of the reverse arch respectively; arranging a special grouting tube with a hose for the floor in the grouting drill hole; filling the bottom of the arch with crushed waste rocks or cement and ensuring that the outer end head of the grouting hose is exposed from the plane of the floor; after the excavated working surface moves forwards for a certain distance, guniting and sealing the floor; and performing grouting operation on each pre-buried grouting tube through the grouting hose by connecting the exposed grouting hose with a grouting pump. The method not only avoids the reverse arch during secondary excavation of the floor, but also solves the problem that the grouting construction is interactional with the construction of the excavation working surface; the pre-buried grouting tube is easy to protect and the exposed part of the grouting tube after the grouting is easy to process; and the method can obviously improve the grouting depth, increase the bearing range for the loose and crushed rock stratum of the floor and improve the deformation resistance capacity of the floor .

A plant method for in-situ treating the soil polluted by Cd features that the plant Dongnan Jingtian is directly planted in the polluted soil for absorbing the Cd from the soil and after the plant is growing for 3-4 months, it is removed. Its advantages are high effect and speed and no secondary pollution.

An open state is formed behind a shield of an open type TBM (tunnel boring machine), so that bolting and shotcreting with wire mesh and the like can be realized, when unfavorable geological conditions such as crushed zones are encountered, broken surrounding rock collapses and falls, which not only threatens the safety of operating personnel and equipment, but also greatly lowers the construction efficiency. The invention discloses an annular steel structure supporting construction method with the open type TBM. The supporting TBM is provided with a shield which has an annular steel structure installation space. When the unfavorable geological conditions are encountered, the annular steel structure can be fast erected in an assembly line mode under the protection of the shield, the shield is replaced with the annular steel structure for supporting the surrounding rock as the TBM tunnels; under the protection of the annular steel structure, an annular steel grating and a steel mesh hollow structure are used for carrying out the bolting and shotcreting supporting and the like, the previous extensive construction is changed to controllable standardized operation, the original open type unsafe environment is changed to a closed protected operation zone; the construction method disclosed by the invention is different from the passive supporting which is carried out after the surrounding rock collapses and falls; the annular steel structure actively close off the broken surrounding rock, then the surrounding rock becomes a part of the supporting structure, the work amount for backfilling concrete and removing slag is greatly reduced, and thus the method is more efficient and safer, the cost is reduced and the operation is easy to realize.

The invention discloses a method of roof cutting pressure relief of the narrow coal pillar gob side through static bursting for gob-side entry driving. According to the method, firstly, the drilling position and drilling relevant parameters of the separation distance, the diameter, the angle and the depth are determined; secondly, drilling construction and hole sealing operation are conducted; thirdly, slurry grouting of a static bursting agent is conducted, and roof cutting pressure relief is conducted through static bursting; and fourthly, gob-side entry driving is conducted. According to the method, recovery of an upper section working face and forward groove driving of a lower section working face are conducted simultaneously, and the problem of intense linkage of mine excavation is effectively relieved; and after entry-side roof cutting pressure relief, the stress environment of gob-side entry driving surrounding rock is greatly improved, surrounding rock deformation is greatly reduced in the entry driving process and after entry forming, the engineering quantity of entry supporting is small, and the repair rate is low.

The invention brings forward an underground parking lot LED illumination and guiding system and method based on a self-networking technology. The system comprises LED light fixtures, a parking path planning guiding system, and LCDs installed in a parking lot and outside the parking lot for displaying parking place information of an underground parking lot, and further comprises parking place detection terminals which are provided with ultrasonic sensors and are installed in parking places, a DALI light modulation system, a center sever with double gateways, and a ZIGBEE wireless communication network composed of ZIGBEE modules. The LED light fixtures are integrated to form radar detection sensors installed at upper ends of travel paths of the parking lot; the center server employs a DALI protocol and the DALI light modulation system for communication and realizes automatic light modulation on the multiple LED light fixtures; and the center server employs a ZIGBEE wireless communication mode to communicate with the multiple parking plate detection terminals. The invention further brings forward a method based on the system.

The invention relates to a preparation method of a petroleum degrading bacteria solid inoculant. The preparation method comprises the following steps: A, screening and domestication of the petroleum degrading bacteria; B, preparation of a seed culture solution; C, fermentation of the solid inoculant; and D, drying, pulverization, measurement and packaging of composted products. The petroleum degrading bacteria solid inoculant has the beneficial effect of improving the petroleum dissolution effect by taking a nonionic surfactantpolysorbate-80 (tween 80) as a solubilizer. The preparation method has the advantages that solid fermentation raw materials are easy to get and the process is relatively simple; and the solid inoculant contains a large amount of carbon and nutrient elements so as to provide more proper matrix for the growth of the bacteria, has strong affinity for the microorganisms, has immobilization efficiency, is capable of improving the competitiveness and degrading efficiency of the added microorganisms and indigenous microorganisms, and is convenient to transport and operate agriculturally and suitable for the large-scale in-situ biological remediation of the petroleum-polluted soil.

The invention discloses a farmland in-situ soil leaching solution collector and a using method thereof, belonging to the field of soil monitoring technology. The collector is composed of a leaching tray, a connecting pipe, a solution collector and a water pumping pipe; when the device is used, a pit is firstly dug and followed by digging an inner pit inside the pit, the dug inner pit is plugged with the leaching tray filled with quartz sand, the connecting pipe and the water-pumping pipe are connected properly, and soil is then gradually backfilled and tamped layer by layer. Watering is performed many times to restore the soil in the pits basically, thus the solution collector can collect the leaching solution of farmland in-situ soil above the leaching tray. The device according to the invention has simple appearance design, small workload for installation and embedment and easy operation. After the device is installed, only the water-pumping pipe thereof is exposed on the ground, thereby taking up no farmland and causing no influence to routine farming.

The invention relates to the field of electric automobiles, in particular to an electric automobile wireless charging device with the position of a receiving electromagnet assembly adjustable. The electric automobile wireless charging device comprises an electric energy receiving end arranged in the center of an automobile chassis and an electric energy transmitting end arranged in the center of a parking place and under the ground and is characterized in that the electric energy receiving end comprises the receiving electromagnet assembly, an X-axis motor for controlling the receiving electromagnet assembly to horizontally move leftwards and rightwards, a Y-axis motor for controlling the receiving electromagnet assembly to horizontally move forwards and backwards and a Z-axis motor for controlling the receiving electromagnet assembly to be displaced upwards and downwards; the electric energy transmitting end comprises a transmitting electromagnet assembly; and the receiving electromagnet assembly and the transmitting electromagnet assembly are opposite in a spaced manner. Compared with the prior art, the electric automobile wireless charging device has the beneficial effects of being small in work amount, easy to implement, intelligent and user-friendly, time is saved, and the charging efficiency is greatly improved.

The invention discloses a view-based data access system and method. An interface element is connected with a data access layer, an object creating element of the data access layer creates a data access element, the data access element comprises a complex view element and a simple view element; the data access element generates an SQL (Structured Query Language) operation statement, the data access element is connected with a database interface, the database interface transmits the SQL operation statement to a relational database through a relational database connecting module, the relational database executes the SQL operation statement and obtains an inquiry statement defined by a data attribute from a data access element object as well as transmits the inquiry statement to the relational database, the relational database executes the inquiry statement; the relational database connecting module transmits data returned by the inquiry statement to the data access element; and the data access element transmits an obtained data source to the interface element for displaying. According to the invention, work amount of developers is effectively reduced and whole development cycle can be shortened.

The invention discloses an automatic library book returning robot and a book returning system thereof, and belongs to the technical field of robots. The automatic library book returning robot comprises a moving assembly capable of driving the robot to move as a whole. A book loading assembly is arranged at one end of the moving assembly, a lifting assembly is arranged above the moving assembly, a book putting-in-rack assembly is installed on the lifting assembly, and the lifting assembly can drive the book putting-in-rack assembly to move vertically. The book putting-in-rack assembly comprises a lifting table, a book bottom plate and a first book pushing plate capable of sliding vertically on the book bottom plate are arranged on the lifting table, a book pushing device is arranged on the first book pushing plate, a book dividing device is further arranged on one side of the lifting table and can move along the side edge of the lifting table, and a code scanner is further installed on the book dividing device. The book returning robot is reasonable in structural design, easy to operate, capable of automatically rerunning books without manual intervention, high in efficiency and capable of reducing labor cost, emancipating productivity and reducing the operating cost of a library.

The invention relates to a water-purifying technology, which pre-oxidizes water by adopting ozone, then the pre-oxidized water is treated with coagulating sedimentation, finally the precipitated water is filtered by a microporous filter membranes and the effluent water is disinfected. The invention can improve the removing rate of iron and manganese, the oxidation-resistant hollow fiber microfiltration membrane technology which is adopted by the invention has strong adaptability and high safety; furthermore, the equipment is compact and has excellent performance in eliminating microorganisms and bacteria, which effectively guarantees the quality of the effluent water.