摘要:
Microbiologically safe and healthy drinking water is prepared from raw water by clarifying and disinfecting it with reactive oxygen derivatives and silver ions. Initially, the water is treated with ozone until a suitable concentration of 0.1-0.5 mg/l of ozone in the water is reached, after that the required amount of silver cations disinfectant solution is supplied into the water so that the silver concentration is 0.02-0.1 mg/l. A stable and safe silver disinfectant solution is used without the use of electrolysis equipment. The solution is stabilized with alkaline earth and/or alkali metal cations, which positively complement the overall intake of minerals. By using such a method, the water stored in the open is protected from secondary microbial contamination for a long time, particularly, longer than 3 months.
摘要:
The present invention relates to a compound of formula (I) based on enamine derivatives and used as organic hole conductors or hole transporting material in an optoelectronic or photoelectrochemical device. The present invention relates to the hole transporting compounds based on enamine derivatives for efficiency perovskite or dye sensitized solar cells and optoelectronic devices, organic light-emitting diode (OLED), field-effect transistors (FET).
摘要:
The invention covers new compounds of the general formula (I) which exhibit enhanced photochromic properties as compared with known spiropyrans and can be used as molecular photoswitches. The method of production of new compounds and intermediates for preparation thereof are disclosed. ˙
摘要:
The present invention relates to new pyrazole-indole derivatives conjugated by ethene, buta-1,3-diene or ethyne linkers and containing substituents at R1, R2 and R3 positions of the general formula I which can be used in photodynamic therapy of cancer or bacterial infections. The invention further includes pharmaceutical compositions containing the conjugated pyrazole-indoline derivatives. (I)
摘要:
The invention relates to antimicrobial silicone substances, which are obtained by using multifunctional cellulose/silver and silicon matrix nanocomposites. Using environmentally friendly, simple deposition techniques, Ag particles were deposited on cellulose. Silicone was filled with the obtained composites of cellulose and silver particles. The created modified cellulose/silver and silicone composite is characterized by good physical and chemical properties, as well as strong antimicrobial effect on both Gram- positive and Gram-negative bacteria.
摘要:
The present invention relates to a compound of formula (I) based on enamine derivatives and used as organic hole conductors or hole transporting material in an optoelectronic or photoelectrochemical device. The present invention relates to the hole transporting compounds based on enamine derivatives for efficiency perovskite or dye sensitized solar cells and optoelectronic devices, organic light-emitting diode (OLED), field-effect transistors (FET).
摘要:
A combined drilling-taping tool for chipless thermoplastic extrusion forming, calibration and tapping of a hole with a neck in thin metal sheets was created. An economic effect is achieved by forming and tapping holes using the proposed combined tool, because the inter-operational time related to the tool changing and setting new forming regimes, furthermore, after the tapping, the sharp-edged collar, which occurs on the top of the workpiece after the drilling, is compressed, therefore an additional mechanical operation for its removal is avoided. The combined drilling-taping tool comprises of seven parts the first five of them are of a rounded polygonal cross-section, which gradually transit from one to another: the cone (1) for forming a centring hole in the workpiece; the cone (2) for hole forming by gradually penetrating the metal; the cylinder (3) for hole and neck calibration until the required diameter for tapping is achieved; the conical thread (4) having not less than 2-3 turns for gradual pilot tapping until the nominal thread diameter is achieved; the cylindrical thread (5) for finishing the chipless tapping of the thread; the cylindrical shoulder (6) of a circular cross-section with a diameter not less than the compressed sharp-edged collar for compressing the sharp-edged collar, the shank (7) for mounting the tool in a collet.