Abstract: A farmland irrigation and drainage system includes: a water inlet pool, the water inlet pool being provided in a piece of farmland, and the water inlet pool being made with a water-filtering material; and, a water outlet pool, the water outlet pool being provided at an interval to the water inlet pool in the farmland, a water overflow being provided on the sidewall of the water outlet pool The water outlet pool is communication with the farmland via the water overflow, and a predetermined water level of the farmland is controlled by controlling the height of the water overflow. The technical solution of the present application solves the problem that automatic irrigation and drainage could not be implemented by a farmland irrigation and drainage system in prior approaches.

Abstract: The present application relates to the technical field of ecological environment remediation, and in particular to a breathable geosynthetic clay liner and a production process therefor. The breathable geosynthetic clay liner of the present application includes an upper breathable layer, a lower breathable layer, and a breathable and impermeable sand layer sandwiched between the upper breathable layer and the lower breathable layer; and the breathable and impermeable sand layer includes breathable and impermeable particles and expansive particles. The breathable geosynthetic clay liner of the present application is convenient to construct, high in production efficiency, and free of dust during a construction process.

Abstract: A gas permeable flowerpot (100), comprising: a tray (10), a flowerpot body (30), and a bottom plate (50). The tray (10) comprises an accommodating trough (10A) for accumulating water; the flowerpot body (30) is filled with soil; the flowerpot body (30) is provided with a plurality of stacked hollow subunits (32); the soil in each hollow subunit (32) is gas permeable; the bottom plate (50) is made of a micro-porous water absorbing material and comprises a water permeable plate (51) and a water absorbing column (52) which extends downwardly out from the water permeable plate (51); the soil is in contact with the water permeable plate (51), and the water absorbing column (52) extends into the accommodating trough (10A). Because of the water permeability of the water permeable plate (51), excessive water can flow through the water permeable plate (51) into the tray (10) to prevent roots from being eroded by water.

Abstract: Embodiments of the present disclosure provide a method and device for collecting location information. The method includes: sending a location subscription instruction to a user equipment (UE) by using a mobile communication network, where the location subscription instruction includes: instructing the UE to measure a cell detected by the UE; receiving instruction response information reported by the UE, where the instruction response information includes an identity (ID) of the UE, an ID of the cell detected by the UE, and signal strength information of the cell detected by the UE; and acquiring location information of the UE according to the received instruction response information.

Abstract: Embodiments of the present disclosure provide a method and device for collecting location information. The method includes: sending a location subscription instruction to a user equipment (UE) by using a mobile communication network, where the location subscription instruction includes: instructing the UE to measure a cell detected by the UE; receiving instruction response information reported by the UE, where the instruction response information includes an identity (ID) of the UE, an ID of the cell detected by the UE, and signal strength information of the cell detected by the UE; and acquiring location information of the UE according to the received instruction response information.

Abstract: Embodiments of the present disclosure provide a method and device for collecting location information. The method includes: sending a location subscription instruction to a user equipment (UE) by using a mobile communication network, where the location subscription instruction includes: instructing the UE to measure a cell detected by the UE; receiving instruction response information reported by the UE, where the instruction response information includes an identity (ID) of the UE, an ID of the cell detected by the UE, and signal strength information of the cell detected by the UE; and acquiring location information of the UE according to the received instruction response information.

Abstract: Embodiments of the present disclosure provide a method and device for collecting location information. The method includes: sending a location subscription instruction to a user equipment (UE) by using a mobile communication network, where the location subscription instruction includes: instructing the UE to measure a cell detected by the UE; receiving instruction response information reported by the UE, where the instruction response information includes an identity (ID) of the UE, an ID of the cell detected by the UE, and signal strength information of the cell detected by the UE; and acquiring location information of the UE according to the received instruction response information.

Abstract: A self-suspending proppant is a particulate aggregate coated with or partly coated with water soluble polymer material; the aggregate is a solid particle having enough mechanical strength for bearing the closure stress of fractures, and is selected from one or more of quartz sand, ceramicite, metal particles, spherical glass particles, sintered bauxite, sintered alumina, sintered zirconia, synthetic resin, coated sand, and crushed nutshell particles; the amount of the water soluble polymer material is 0.1-5 wt % based on the amount of the aggregate. With the self-suspending proppant of the present invention, fracturing does not need the use of expensive fracturing fluids with added organic polymers, and easily available natural water can be directly used for fracturing, thus reducing pollution and costs; and the self-suspending proppant of the present invention can reduce the frictional resistance of the fracturing fluid.

Abstract: Embodiments of the present disclosure provide a method and device for collecting location information. The method includes: sending a location subscription instruction to a user equipment (UE) by using a mobile communication network, where the location subscription instruction includes: instructing the UE to measure a cell detected by the UE; receiving instruction response information reported by the UE, where the instruction response information includes an identity (ID) of the UE, an ID of the cell detected by the UE, and signal strength information of the cell detected by the UE; and acquiring location information of the UE according to the received instruction response information.

Abstract: The invention discloses a hydrophobic proppant and a preparation method thereof. The aggregate particles of the hydrophobic proppant are coated with a coating resin which comprises a hydrophobic resin and nano-particles which are uniformly distributed in the coating resin and constitute 5-60% of the coating resin by weight. The contact angle labeled as ? between water and the hydrophobic proppant in which nano-particles are added is in the range of 120°???180°. The proppant of the present invention is prepared by adding the nano-particles in the existing resin in which low-surface-energy substances with hydrophobic groups are added, and a rough surface with a micro-nano structure is constructed on the outer surface of the prepared resin film, so that the contact angle ? at the solid-liquid contact surface on the outer surface of the coating resin of the proppant is more than 120°.

Abstract: A water purification and storage system comprises a water storage container, a covering plate and an impermeable wall. The water storage container is formed by a plurality of tangentially connected polygonal water-filtering wells (1). Well walls of the water-filtering wells (1) are of a water-permeable structure, and an impermeable layer (4) is arranged at the bottom of the well, wherein at least one of the water-filtering wells (1) is a water output well (14). The covering plate (2) is arranged at the upper portion of the water storage container, and comprises an impermeable covering plate (21) arranged at the upper portion of the water output well (14) and a water-permeable covering plates (22) arranged at the upper portions of the remaining water-filtering wells. The impermeable wall (3) is arranged around the water storage container. The water purification and storage system is suitable for the collection and purification of rain water.

Abstract: An oil-water separating device and a floating oil collecting system including an oil gathering chamber enclosed by a wall, where at least a part of the surface of the wall is covered with a porous, oleophilic and hydrophobic layer which allows penetration of water and oil, the device further including a fixed layer covering on the surface of the porous, oleophilic and hydrophobic layer for limiting the flowing of the porous, oleophilic and hydrophobic layer, which allows the penetration of water and oil, where the pore diameter of said porous, oleophilic and hydrophobic layer is 300-850 ?m, and the porosity is 10-40%.

Abstract: A method, device and system for transmitting packet service data are provided. The method includes the steps of: receiving the packet service data transmitted by a user equipment; determining the packet service data to be uninstalled in the packet service data according to the service uninstall strategy of the user equipment; and transmitting the packet service data to be uninstalled to the packet data network via a metropolitan-area network and an internet protocol (IP) backbone network. By applying this method, the problem in the prior art is overcome, thereby saving the operation and maintenance cost of the packet network.

Abstract: A water purification and storage system comprises a water storage container, a covering plate and an impermeable wall. The water storage container is formed by a plurality of tangentially connected polygonal water-filtering wells having well walls of a water-permeable structure, and an impermeable layer is arranged at the bottom of the well. At least one water-filtering well is a water output well. The covering plate is arranged at the upper portion of the water storage container, and comprises an impermeable covering plate arranged at the upper portion of the water output well and a water-permeable covering plates arranged at the upper portions of the remaining water-filtering wells. The impermeable wall is arranged around the water storage container. The system is suitable for the collection and purification of rain water. Also disclosed are a water-filtering well for use in the system, and a polygonal building block for the water-filtering well.

Abstract: The present invention provides a wall block. The wall block (1) comprises a first wall (11), a second wall (12), a third wall (13) and a rib (14), wherein the first wall (11) is in parallel with the second wall (12), the third wall (13) is securely connected between the two walls, at the two respective ends of the two walls; the rib (14) is connected fixedly between the first wall (11) and the second wall (12), and forms a hollow portion (17) with the third wall (13). With the technical solution, as the wall block has a hollow structure, a load-bearing structure (such as a bearing pillar) may be arranged directly in the hollow structure of the wall block, unlike the traditional wall blocks which need to be piled up around the load-bearing structure (such as a bearing pillar) at a large amount. Therefore, the wall block of the present invention can save time for piling up the same and improve construction efficiency.

Abstract: A composition used for high-strength impermeable concrete. The composition contains sand, stone, cement, water reducer, water and reinforced impermeable sand. The reinforced impermeable sand includes aeolian sand and binder covering the surface of the aeolian sand. The reinforced impermeable sand can fill the gap between the sand and the stone, and well combine various components in the composition, and suppress the seepage phenomenon of the molded concrete, thereby greatly improving the strength and impermeability of the concrete.

Abstract: The present invention provides an oil-water separating device and a floating oil collecting system. The device comprises an oil gathering chamber (2) enclosed by a wall (1). At least a part of the surface of the wall (1) is covered with a porous, oleophilic and hydrophobic layer (3), which allows penetration of water and oil. The device further comprises a fixed layer (4) covering on the surface of the porous, oleophilic and hydrophobic layer (3) for limiting the flowing of the porous, oleophilic and hydrophobic layer (3), which allows the penetration of water and oil. The pore diameter of said porous, oleophilic and hydrophobic layer (3) is 300-850 ?m, and the porosity is 10-40%.

Abstract: The present invention provides a wall block. The wall block (1) comprises a first wall (11), a second wall (12), a third wall (13) and a rib (14), wherein the first wall (11) is in parallel with the second wall (12), the third wall (13) is securely connected between the two walls, at the two respective ends of the two walls; the rib (14) is connected fixedly between the first wall (11) and the second wall (12), and forms a hollow portion (17) with the third wall (13). With the technical solution, as the wall block has a hollow structure, a load-bearing structure (such as a bearing pillar) may be arranged directly in the hollow structure of the wall block, unlike the traditional wall blocks which need to be piled up around the load-bearing structure (such as a bearing pillar) at a large amount. Therefore, the wall block of the present invention can save time for piling up the same and improve construction efficiency.

Abstract: An anti-penetration and gas permeable potting container and preparation method thereof are disclosed. The anti-penetration and gas permeable potting container is made by bonding aggregate particles with hydrophobic binder, and pores which allow gas molecules to penetrate and liquid water molecules not to penetrate are formed between adjacent aggregate particles. Further, a potting planting container applying said potting container is disclosed, wherein it includes a cultivating layer, and a base anti-penetration layer formed of waterproof and gas permeable particles which is provided between the potting container and the bottom of the cultivating layer. Pores which allow gas molecules to penetrate and liquid water molecules not to penetrate are formed between adjacent waterproof and gas permeable particles. Said pores are thoroughly distributed on the base anti-penetration layer. The container can prevent water from flowing from its bottom, and has gas permeable property.

Abstract: The invention discloses a hydrophobic proppant and a preparation method thereof. The aggregate particles of the hydrophobic proppant are coated with a coating resin which comprises a hydrophobic resin and nano-particles which are uniformly distributed in the coating resin and constitute 5-60% of the coating resin by weight. The contact angle labeled as ? between water and the hydrophobic proppant in which nano-particles are added is in the range of 120°???180°. The proppant of the present invention is prepared by adding the nano-particles in the existing resin in which low-surface-energy substances with hydrophobic groups are added, and a rough surface with a micro-nano structure is constructed on the outer surface of the prepared resin film, so that the contact angle ? at the solid-liquid contact surface on the outer surface of the coating resin of the proppant is more than 120°.