The present invention discloses a terahertz material with therapeutic and health care effect and its preparation method and application, which includes the following raw materials in parts by weight: 15˜28 SiO.sub.2, 3˜8 Al.sub.2O.sub.3, 1˜3 selenium, 2˜5 germanium, 10˜15 Fe.sub.2O.sub.3, 35˜45 ochre, 20˜35 zinc oxide, 65˜80 CaCO.sub.3, 0.1˜0.5 rare earth palladium, 1˜10 SiO.sub.x, wherein the raw materials of components are mixed according to the above proportion, and crushing, heating to 600˜1200° C. in an oxygen free environment for 3˜8 hours, and then secondary crushing, having a fineness of 3000˜8000 mesh; and then, after crushing again and powdering processing, the fineness reaches more than 10000 mesh. After being enhanced treatment by the terahertz irradiation line, the terahertz materials with therapeutic and health care effects are obtained. They can be processed and manufactured into a variety of physiotherapy equipment, with fast action speed and stable effect on human body.

Provided are a sodium ion-conductive crystal-containing solid electrolyte sheet capable of giving excellent battery characteristics even when reduced in thickness, and an all-solid-state battery using the same. The solid electrolyte sheet contains at least one type of sodium ion-conductive crystal selected from β″-alumina and NASICON crystal and has a thickness of 500 μm or less and a flatness of 200 μm or less.

Provided are a sodium ion-conductive crystal-containing solid electrolyte sheet capable of giving excellent battery characteristics even when reduced in thickness, and an all-solid-state battery using the same. The solid electrolyte sheet contains at least one type of sodium ion-conductive crystal selected from β″-alumina and NASICON crystal and has a thickness of 500 μm or less and a flatness of 200 μm or less.

Provided is a composition containing a silylamine compound and a method for manufacturing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing a silylamine compound capable of forming a silicon-containing thin film having a significantly excellent water vapor transmission rate to thereby be usefully used as a precursor of the silicon-containing thin film and an encapsulant of a display, and a method for manufacturing a silicon-containing thin film using the same.

A system for determining pH of a fluid and a method to determine the pH of a fluid contacting a sensor, the method having the steps of: providing the sensor to an environment such that the sensor is in contact with the fluid, wherein the sensor features a fiber extending between a first end and a second end along a longitudinal axis, wherein the fiber further features a medial portion positioned between the first and second ends, wherein the sensor further features a pH sensitive coating on the medial portion of the fiber, and wherein the pH sensitive material features a metal oxide including but not limited to SiO.sub.2, TiO.sub.2, ZrO.sub.2, Ta.sub.2O.sub.5, A.sub.2O.sub.3, and combinations thereof; interrogating the sensor with an optical signal; collecting a modified optical signal after the sensor has been interrogated; and determining the pH of the fluid contacting the pH sensor using the modified optical signal.

A system for determining pH of a fluid and a method to determine the pH of a fluid contacting a sensor, the method having the steps of: providing the sensor to an environment such that the sensor is in contact with the fluid, wherein the sensor features a fiber extending between a first end and a second end along a longitudinal axis, wherein the fiber further features a medial portion positioned between the first and second ends, wherein the sensor further features a pH sensitive coating on the medial portion of the fiber, and wherein the pH sensitive material features a metal oxide including but not limited to SiO.sub.2, TiO.sub.2, ZrO.sub.2, Ta.sub.2O.sub.5, A.sub.2O.sub.3, and combinations thereof; interrogating the sensor with an optical signal; collecting a modified optical signal after the sensor has been interrogated; and determining the pH of the fluid contacting the pH sensor using the modified optical signal.

The disclosure relates to embodiments of an explosive formulation comprising a detonable mixture of an oxidizing agent such as carbon dioxide, and a material that decomposes the oxidizing agent exothermically (a reducing agent), and additives that increase the mixture's shock sensitivity. The formulations may be used in a method to produce diamonds or nano oxides or in other applications that use traditional explosives such as, but not limited to: ammonium nitrate and fuel oil combinations (ANFO), watergel explosives, emulsion explosives and RDX.

The disclosure relates to embodiments of an explosive formulation comprising a detonable mixture of an oxidizing agent such as carbon dioxide, and a material that decomposes the oxidizing agent exothermically (a reducing agent), and additives that increase the mixture's shock sensitivity. The formulations may be used in a method to produce diamonds or nano oxides or in other applications that use traditional explosives such as, but not limited to: ammonium nitrate and fuel oil combinations (ANFO), watergel explosives, emulsion explosives and RDX.

Embodiments of the invention include silica fiber compositions useful for treatment of animal wounds and tissue, as well as for other applications in industry. The fiber compositions may be formed via electrospinning of a sol gel produced with a silicon alkoxide reagent, such as tetraethyl ortho silicate, alcohol solvent, and an acid catalyst.

Embodiments of the invention include silica fiber compositions useful for treatment of animal wounds and tissue, as well as for other applications in industry. The fiber compositions may be formed via electrospinning of a sol gel produced with a silicon alkoxide reagent, such as tetraethyl ortho silicate, alcohol solvent, and an acid catalyst.