Abstract: The present invention provides an inorganic eco-friendly water-based type fire-resistant paint composition comprising 5 to 15% by weight of pentaerythritol, 1 to 5% by weight of ethylenediaminetetraacetic acid (EDTA) as a water softener, 5 to 20% by weight of hydroxyethyl cellulose, 5 to 20% by weight of poly(vinyl acetate) emulsion, 10 to 25% by weight of ammonium polyphosphate, 5 to 20% by weight of melamine cyanurate, 1 to 10% by weight of glass fiber chop, 1 to 10% by weight of pigment, 3 to 25% by weight of propylene glycol, 5 to 20% by weight of Texanol ((3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate), and 1 to 5% by weight of additives.

Abstract: The present invention relates to an eco-friendly herbicide comprising 8 to 15% by weight of soft water, 1.5 to 5% by weight of canola oil, 0.2 to 1% by weight of potassium hydroxide, 78 to 88% by weight of pelargonic acid, 0.2 to 1% by weight of sodium alginate, 0.2 to 1% by weight of citric acid and 0.1 to 1% by weight of beet juice, and the herbicide provides the effects of being harmless to the human body and not causing soil contamination while exhibiting not only weed control but also bactericidal, insecticidal and harmful bird and animal repellent functions.

Abstract: A display device that senses externally applied pressure and a change in the resonant frequency of a piezoelectric element. The display device includes a piezoelectric sensor layer including a piezoelectric sensor; and a display panel disposed on the piezoelectric sensor layer. The piezoelectric sensor includes: a piezoelectric element having a first electrode, a second electrode facing the first electrode, and a piezoelectric material disposed between the first electrode and the second electrode; an alternating current (AC) voltage generator connected to the first electrode and applies a voltage having a resonance frequency to the piezoelectric element. A sensing circuit connected to the second electrode is configured to measure a change in impedance of the piezoelectric element.

Abstract: Raman analysis apparatus capable of real-time Raman analysis while performing an experiment under elevated temperature and pressure conditions in surface or material property analysis of a powder solid sample, a single-crystal sample, a high-concentration liquid sample, or the like may be provided.

Abstract: A paint composition has incombustibility, flame resistance, heat shielding, heat insulation, water resistance and dew condensation prevention effects, thereby being effectively usable as a finishing, heat insulating, water resistant and incombustible material for buildings, and has a significantly thick film thickness even if applied only once, thereby being rapidly and conveniently usable when applied.