A hydraulic fracturing system for fracturing a subterranean formation includes a support structure that includes an electric powered pump, arranged in a first area, the electric powered pump powered by at least one electric motor, also arranged in the first area. The system further includes a variable frequency drive (VFD), arranged in a second area proximate the first area, connected to the at least one electric motor to control the speed of the at least one electric motor. The system includes a transformer, arranged in a third area proximate the second area. The system also includes a slide out platform integrated into the first area, the slide out platform being driven between a retracted position and a deployed position.

A hydraulic fracturing system for fracturing a subterranean formation includes a support structure that includes an electric powered pump, arranged in a first area, the electric powered pump powered by at least one electric motor, also arranged in the first area. The system further includes a variable frequency drive (VFD), arranged in a second area proximate the first area, connected to the at least one electric motor to control the speed of the at least one electric motor. The system includes a transformer, arranged in a third area proximate the second area. The system also includes a slide out platform integrated into the first area, the slide out platform being driven between a retracted position and a deployed position.

The present technology provides a method for preparing an acid-reducing filter that includes depositing a mineral blend layer to a filter substrate, where the mineral blend layer comprises calcium carbonate and magnesium carbonate at a weight ratio of about 1:10 to about 10:1, the mineral blend is free of soluble halide or hydroxide salts of alkali or alkaline earth metals, and the mineral blend layer is insoluble in water.

The present technology provides a method for preparing an acid-reducing filter that includes depositing a mineral blend layer to a filter substrate, where the mineral blend layer comprises calcium carbonate and magnesium carbonate at a weight ratio of about 1:10 to about 10:1, the mineral blend is free of soluble halide or hydroxide salts of alkali or alkaline earth metals, and the mineral blend layer is insoluble in water.

The purpose of the present invention is to provide an electret fiber sheet that has high collection performance and that is suitably used in an air filter, etc. The present invention is an electret fiber sheet configured from polyolefin-based resin fibers comprising a polyolefin-based resin composition containing a high-crystalline polyolefin resin and a low-crystalline polyolefin resin, wherein the mass ratio of the low-crystalline polyolefin resin in the polyolefin-based resin composition is 0.5-10 mass % (inclusive) relative to the total mass of the high-crystalline polyolefin-based resin and the low-crystalline polyolefin resin, and a hindered-amine-based compound is included in the electret fiber sheet in an amount of 0.1-5.0 mass % (inclusive).

The present disclosure provides a membrane separation method of a cell suspension which can appropriately separate cells from debris, and a cell culture device. That is, membrane separation processing of the cell suspension is performed using a filtration membrane which includes an inlet-side opening formed on one surface and an outlet-side opening, which is formed on the other surface and communicates with the inlet-side opening, and in which the inlet-side opening and the outlet-side opening are disposed at positions deviated in a direction parallel to the surfaces of the membrane.

The present disclosure provides a membrane separation method of a cell suspension which can appropriately separate cells from debris, and a cell culture device. That is, membrane separation processing of the cell suspension is performed using a filtration membrane which includes an inlet-side opening formed on one surface and an outlet-side opening, which is formed on the other surface and communicates with the inlet-side opening, and in which the inlet-side opening and the outlet-side opening are disposed at positions deviated in a direction parallel to the surfaces of the membrane.

An improved technology for inactivation of viruses, for example the SARS-CoV-2 virus that is causing the Covid-19 pandemic, is described. The technology can include a device that includes a substrate coated in a polymer that is infused with a pathogen inactivating material. In various embodiments, at a given time, a portion of the pathogen inactivating material is exposed to the environment, and the device is configured to periodically or intermittently expose additional pathogen inactivating material to the environment. For example, the polymer can be ablative or sacrificial.

A bacterial cellulose-based air filter mesh and use thereof are disclosed. The bacterial cellulose-based air filter mesh comprises a three-layer structure, in which a layer of a bacterial cellulose-based filter mesh is sandwiched by two layers of polymer fiber filter meshes; wherein the polymer fiber filter mesh is a mesh having a uniform grid size formed from polymer fibers by blended-yarn weaving; and the bacterial cellulose-based filter mesh is formed by in-situ synthesis of bacterial cellulose on a non-woven fabric through fermentation by bacteria. The bacterial cellulose-based air filter mesh has better particle filtering effect, better formaldehyde adsorption capacity, better antibacterial performance and good electrostatic capacity; and it can be used for producing gauze windows, air conditioning filters, air purification filters and the like, and has a wide range of applications.

A bacterial cellulose-based air filter mesh and use thereof are disclosed. The bacterial cellulose-based air filter mesh comprises a three-layer structure, in which a layer of a bacterial cellulose-based filter mesh is sandwiched by two layers of polymer fiber filter meshes; wherein the polymer fiber filter mesh is a mesh having a uniform grid size formed from polymer fibers by blended-yarn weaving; and the bacterial cellulose-based filter mesh is formed by in-situ synthesis of bacterial cellulose on a non-woven fabric through fermentation by bacteria. The bacterial cellulose-based air filter mesh has better particle filtering effect, better formaldehyde adsorption capacity, better antibacterial performance and good electrostatic capacity; and it can be used for producing gauze windows, air conditioning filters, air purification filters and the like, and has a wide range of applications.