A polymer-based composite fiber includes a matrix including one or more polymers, a plurality of voids formed in the matrix, and a plurality of solid particles, each particle of the plurality of solid particles being disposed in a respective void of the plurality of voids. The fiber may have an aspect ratio of at least 10, the fiber aspect ratio being defined as the length of the fiber divided by the diameter of the fiber. Each void of the plurality of voids may have a respective long axis, each long axis being a line that extends through a longest dimension of the void, and each long axis may extend in a direction parallel to the length of the fiber.

A polymer-based composite fiber includes a matrix including one or more polymers, a plurality of voids formed in the matrix, and a plurality of solid particles, each particle of the plurality of solid particles being disposed in a respective void of the plurality of voids. The fiber may have an aspect ratio of at least 10, the fiber aspect ratio being defined as the length of the fiber divided by the diameter of the fiber. Each void of the plurality of voids may have a respective long axis, each long axis being a line that extends through a longest dimension of the void, and each long axis may extend in a direction parallel to the length of the fiber.

Compositions are provided comprising a nanofiber scaffold that is seeded with one or more relevant cells and has a basketweave configuration that mimics the structure of a tissue, such as a cardiac tissue. Methods for treating damaged cardiac tissue in a subject are also provided and include applying an effective amount of the composition to damaged cardiac tissue. Methods for making nanofiber scaffold compositions are further provided and include electrospinning a biodegradable polymer onto a mandrel to create a mat of electrospun nanofibers, dividing the mat into nanofiber strips; and weaving the strips into a nanofiber scaffold having a basketweave configuration that mimics the structure of a tissue.

A sound absorbing device includes an acoustic resonator with an opening and at least one fabric layer extending across the opening. The at least one fabric layer includes reversible actuatable liquid crystal elastomer (LCE) fibers such that an average pore size of the at least one fabric layer increases with decreasing temperature and decreases with increasing temperature. The sound absorbing device also includes at least one of a heater configured to heat the at least one fabric layer such that the average pore size of the at least one fabric decreases and a cooler configured to cool the at least one fabric layer such that the average pore size of the at least one fabric increases. And in some variations a controller configured to command the heater to heat to the at least one fabric layer and command the cooler to cool the at least one fabric layer is included.

A sound absorbing device includes an acoustic resonator with an opening and at least one fabric layer extending across the opening. The at least one fabric layer includes reversible actuatable liquid crystal elastomer (LCE) fibers such that an average pore size of the at least one fabric layer increases with decreasing temperature and decreases with increasing temperature. The sound absorbing device also includes at least one of a heater configured to heat the at least one fabric layer such that the average pore size of the at least one fabric decreases and a cooler configured to cool the at least one fabric layer such that the average pore size of the at least one fabric increases. And in some variations a controller configured to command the heater to heat to the at least one fabric layer and command the cooler to cool the at least one fabric layer is included.

A portable and manual clothes wringing system utilizes a wringer roll apparatus configured to retain wet clothes in a rolled up wringer fabric and has loops extending from the ends to receive rods for twisting and wringing water from wet clothes. The wringer roll apparatus enables a manual method of wringing water from clothes by twisting a first end rod extended through the first end loops with respect to the second end rod configured through the second end loops. The wringer fabric may be a microcloth made of microfibers. The wet clothes may contact the inside and outside surface of the wringer fabric when rolled in the wringer roll to more effectively wring water from the wet clothes.

A portable and manual clothes wringing system utilizes a wringer roll apparatus configured to retain wet clothes in a rolled up wringer fabric and has loops extending from the ends to receive rods for twisting and wringing water from wet clothes. The wringer roll apparatus enables a manual method of wringing water from clothes by twisting a first end rod extended through the first end loops with respect to the second end rod configured through the second end loops. The wringer fabric may be a microcloth made of microfibers. The wet clothes may contact the inside and outside surface of the wringer fabric when rolled in the wringer roll to more effectively wring water from the wet clothes.

A lightweight and thin woven fabric has a soft texture and excellent wind-breaking properties and is therefore suitable for wind breakers, down jackets, and the like. The woven fabric has a plain-weave structure including a warp polyamide multifilament and a weft polyamide multifilament, wherein each of the warp polyamide multifilament and the weft polyamide multifilament has a total fineness of 17 dtex or less, and at least one of the warp polyamide multifilament and the weft polyamide multifilament has a single-filament fineness of 0.7 dtex or less and a fabric breakdown thread tenacity of 4.5 cN/dtex or more, and the woven fabric has a cover factor of 1700 or more.

A garment article is made of a fabric including a plurality of warp and weft yarns woven together in a pattern; at least the weft yarns include elastomeric yarns, to provide an elasticity of the fabric in warp direction that is at least 7% and elasticity of the fabric in weft direction that is at least 15%; the fabric of the garment is bias cut so that the weft yarns in the garment are angled with respect to the widthwise direction (WD) of the article.

An inflatable for an evacuation system may comprise a nano-fiber material defining an inflation chamber. The nano-fiber material may include a nano-fiber fabric formed of woven nano-fibers, an interior thermoplastic polymeric coating formed over a first side of the nano-fiber fabric and oriented toward the inflation chamber, and an exterior thermoplastic polymeric coating formed over a second side of the nano-fiber fabric and oriented away from the inflation chamber.