An ecological slope protection has an efficient water purification function, built in a land-lake ecozone along the bank of a basin, wherein the body of the ecological slope protection extends into the water of the basin, and has a flexible mattress laid on the surface thereof; an ecological filter pool is provided below the flexible mattress and is isolated from the water of the basin by means of the pool body; the ecological filter pool is contained with a filler layer and a support layer, and the filler layer is supported by the support layer; the sewage pretreated via a sedimentation pool is introduced into the ecological filter pool and treated by the filler layer to clean up pollutants therein and reduce its eutrophication level; and the treated sewage is discharged from the ecological slope protection via the support layer and enters the basin.

A device to prevent the clay liner erosion of drilling site reserved water and mud waste pits by dissipating the energy of fluid(s) discharged to those pits. An economic and reusable device to prevent the erosion of the compacted clay (marl) layer of water reserve and drilling fluid waste pits at onshore drill sites by dissipating the energy of the fluids and/or solids discharged into the pits. The device consists of an approximately several square meters of rectangular lining that can be manufactured from synthetics, composite, or metal which is securely anchored under the fluid discharge pipes so that it safely dissipates the energy of the fluids/solids discharged into the pit thus preventing the underlying clay (marl) liner erosion and hence water loss or contamination of the underlying soil and shallow groundwater.

In an exemplary embodiment, a system for making tied block mat with a border includes a mold having an array of mold cavities; and a hopper that receives a hardenable paste and is spaced from the mold to receive a sheet of mesh material therebetween, the hopper having an opening for depositing the hardenable paste into selected mold cavities, the hopper forming a filling zone with the mold wherein the hardenable paste flows through the opening into the selected mold cavities, and a blocked zone where the hardenable paste is prevented from entering other selected mold cavities of the mold; whereby the tied block mat is formed wherein the hardenable paste in the selected mold cavities becomes embedded in the sheet of mesh material in the filling zone, and a border is formed in the blocked zone where the hardenable paste is blocked from entering the other selected mold cavities.

A frame for cradling a rolled surface covering during installation onto a ground surface, including first and second spaced-apart end panels, a surface covering support base extending between the first and second spaced-apart panels and adapted for holding the rolled surface covering during installation. At least one lower roller extends along the support base between the first and second spaced-apart end panels at a level above the support base, and at least one upper roller extends along the support base between the first and second spaced-apart end panels at a level above the support base and is vertically spaced-apart from the at least one lower roller. The space defines a gap extending along a length of the at least one lower roller and the at least one upper roller through which a free end of the rolled surface covering is extended during installation onto the ground surface.

Flood barrier systems include a plurality of vertical supports and a fabric barrier. A top end of the fabric barrier engages the supports. The systems further include a magnetic lock assembly and a base. The magnetic lock assembly is configured so that a magnetic force between the magnetic lock assembly and the base prevents water infiltration under the fabric barrier.

In a system comprising an customer providing a service to a plurality of client devices, a method and system for providing an customer-specific digital certificate to a client device of the plurality of client devices is disclosed. The method comprises receiving, in an intermediate certificate authority, a pre-generated digital certificate and an encrypted client device private key encrypted according to a private key encryption key PrKEK, receiving, from the client device, a request for the customer-specific digital certificate, the request comprising at least one of client device identifying information and information identifying the customer, the request signed according to a pre-provisioned client device digital certificate, and transmitting the customer-specific digital certificate and the encrypted client device private key to the client device.

An internally braced synthetic mattress is a geosynthetic structure made of a geosynthetic material. The structure has a bottom side, a top side and at least one upright side joining at least a portion of the bottom side and top side. The at least one upright side is formed by an upright fold of the geosynthetic material. A horizontal bar is woven through a portion of the bottom side of the geosynthetic structure and joined with an upright bar and a diagonal bar to form at least one angle brace to support at least a portion of the geosynthetic structure. The geosynthetic structure contains a filler to prevent/reduce erosion.

A capping assembly (10) for mounting on a covering (12) is disclosed. The capping assembly (10) comprises a cap (14) which can be disposed on the covering (12), a securing arrangement (18) to enable the capping assembly (10) to be secured on the covering (12). The capping assembly (10) further includes an insertion member (16) for insertion through the covering (12). The cap (14) can be attached to the insertion member (16). The securing arrangement (18) comprises a securing device (20) and a holding formation (44) to hold the securing device (20), the holding formation (44) being provided on the insertion member (16).

A compost filter sock assembly comprising a filter sock and compost filter anchor system comprising one of i) an interconnected series of compost filter sock anchors alternating on the downstream and upstream side of the filter sock, wherein the compost filter sock anchors are interconnected with strapping between adjacent compost filter sock anchors on opposed sides of the filter sock such that the strap traverses the filter sock; or ii) a downstream wooden stake having a fin coupled thereto that extends laterally on both sides of the wooden stake.

An internally braced synthetic mattress is a geosynthetic structure made of a geosynthetic material. The structure has a bottom side, a top side and at least one upright side joining at least a portion of the bottom side and top side. The at least one upright side is formed by an upright fold of the geosynthetic material. A horizontal bar is woven through a portion of the bottom side of the geosynthetic structure and joined with an upright bar and a diagonal bar to form at least one angle brace to support at least a portion of the geosynthetic structure. The geosynthetic structure contains a filler to prevent/reduce erosion.