36results about How to "Solve application needs" patented technology

The invention belongs to the field of electronic ceramics and its manufacture, and relates to a low-temperature sintered microwave dielectric ceramic material and a preparation method thereof, which are mainly used for dielectric filters of communication systems. The material of the present invention is BaWO 4 Microwave-based dielectric ceramic material, sintering temperature 850℃~900℃, dielectric constant 5.8~9.0, loss as low as 3.70×10 ‑4 , frequency temperature coefficient ‑30~‑10ppm / ℃; its general chemical formula is BaWO 4 -xM 2 CO 3 ‑yBaO‑zB 2 o 3 ‑wSiO 2 , where M is Li + 、K + or Na + Alkali metal ions, and x, y, z, and w cannot be zero at the same time. When y=0, after sintering at 850°C to 900°C, all are BaWO 4 phase; when y is not equal to 0, the main crystal phase is BaWO 4 phase, the subcrystalline phase is BaSi 2 o 5 Mutually. During preparation, the raw materials are directly mixed according to the required chemical formula, and prepared by solid-state sintering method; the final sintering temperature is as low as 850°C, the holding time is 0.5-2h, and the dielectric performance is 5.8-9.0, which meets the high-frequency dielectric filter BaWO 4 The base LTCC microwave dielectric ceramic material can be applied in the LTCC field.

The invention belongs to rapid propagating methods for medicinal plants and important plant materials in vertical greening of environmental governance and particularly relates to a rapid propagating method for mucuna sempervirens which is a vine and is a peculiar tree species of China. The method comprises the steps of selecting and disinfecting a material, carrying out induced culture, carrying out propagation culture, carrying out root induction and transplanting, wherein a bud induction culture medium, a propagation culture medium and a rooting culture medium are involved. According to the formulae for mucuna sempervirens propagation, the coefficient of propagation is large, the rooting rate is high, the plant growth required time is short, after cultivating, the adaptability is strong, and nursery-grown plants are robust, tall and straight and good, orderly and consistent in growth vigor, so that a nursery-grown plant culture process is greatly shortened, and the cost is reduced greatly; a technical support is provided for the protection and large-scale industrialized production popularization and application of mucuna sempervirens; by the method disclosed by the invention, available resources can be applied to the maximum, and the requirements on application of scarce nursery-grown plants are met through biotechnical means in short time.

The invention particularly relates to an inducing method for a maguey bulblet. The method comprises the following steps: taking materials; preparing a culture medium; carrying out disinfection treatment on the materials; carrying out induced cultivation on the bulblet; carrying out enrichment culture; carrying out root induction; and carrying out plant regeneration. The invention aims at providing an inducing method for a maguey bulblet. A technical support is provided for scale management and industrialization. Plump maguey bulblets are selected as the inducing material, and are subjected to induced cultivation in a sterile condition for 20-30 days, so as to germinate strong sprouts; and a lot of proliferation buds can be produced after enrichment culture for 35-50 days, so that the propagation coefficient is high; the proliferation time is short; the growth process is greatly shortened; seedlings can be formed after root induction for 25-35 days; the transplanting survival rate can be up to over 93%; a lot of cost is reduced; the survival rate after the seedlings are transplanted is high; and the seedlings are healthy, forceful, good in growth vigor, regular and consistent.