Geocell structures stabilize water body shorelines and beds, slopes and retaining wall bridge abutments in such areas of construction as the oil and gas, transport and hydraulic engineering industries, amongst others. A blank for producing a weld-free geocell is made from a polymer sheet material having incisions therein in the form of segments of parallel lines. Adjacent incisions in the same row have a distance S between the ends thereof and the relationship S/L=K1, where K1 is from 0.1 to 0.5. The incisions of adjacent rows are at a distance D from each other and have the relationship D/L=K2, where K2 is from 0.1 to 0.7. At the ends of the incisions, there are openings which are oval or circular in shape. A weld-free geocell includes at least one blank stretched in a direction perpendicular to the lines of the incisions to form a three-dimensional cellular structure.

A cellular structure includes a plurality of interconnected cells of fabric material. The cells are at least partially filled with a composite fill material that includes a particulate material and a bonding agent. A cellular unit made up of a plurality of the interconnected cells may have an associated load-bearing frame to enable lifting and/or transportation of the structure. The fill material is preferably resilient.

A panel structure and a method of forming the panel structure are disclosed. The panel structure typically includes at least one panel associated with a material. The panel structure has been found particularly advantageous for use as an interior panel of an airplane.

A self supporting panel system used to fabricate ceilings, floors, walls, or roofs. The panel system is assembled from a plurality of panels, each having a core that is sandwiched between opposing plate members. In a preferred embodiment, the core of each panel includes a unifying material to enhance the load bearing capacity of the panel.

A honeycomb structure including a honeycomb structure body, first plugging portions, and second plugging portions. The honeycomb structure body has a porous partition wall. The first plugging portions are disposed at an outflow side end face of inlet cells and an inflow side end face of outlet cells. The inlet cells are the predetermined cells of the honeycomb structure body. The outlet cells are the residual cells of the honeycomb structure body. The second plugging portions are not fired. The first plugging portions form a checkered pattern at the inflow side end face and the outflow side end face. The number of the second plugging portions is within 3% of the number of cell open ends where the first plugging portions are not formed, on both end faces of the honeycomb structure body.

In one aspect, structural catalyst bodies comprising one or more gradients of catalytic material are provided herein. In some embodiments, a structural catalyst body described herein comprises an inner partition wall having a first surface and a second surface opposite the first surface, the inner partition wall having a gradient of catalytic material along the width of the inner partition wall.

A panel structure and a method of forming the panel structure are disclosed. The panel structure typically includes at least one panel associated with a material. The panel structure has been found particularly advantageous for use as an interior panel of an airplane.

A self supporting panel system used to fabricate ceilings, floors, walls, or roofs. The panel system is assembled from a plurality of panels, each having a core that is sandwiched between opposing plate members. In a preferred embodiment, the core of each panel includes a unifying material to enhance the load bearing capacity of the panel.

Geocell structures stabilize water body shorelines and beds, slopes and retaining wall bridge abutments in such areas of construction as the oil and gas, transport and hydraulic engineering industries, amongst others. A blank for producing a weld-free geocell is made from a polymer sheet material having incisions therein in the form of segments of parallel lines. Adjacent incisions in the same row have a distance S between the ends thereof and the relationship S/L=K1, where K1 is from 0.1 to 0.5. The incisions of adjacent rows are at a distance D from each other and have the relationship D/L=K2, where K2 is from 0.1 to 0.7. At the ends of the incisions, there are openings which are oval or circular in shape. A weld-free geocell includes at least one blank stretched in a direction perpendicular to the lines of the incisions to form a three-dimensional cellular structure.