摘要:
A leg blood flow stimulation system comprising a closed chamber, a low-frequency acoustic vibration-exciting speakers located on sides of the chamber, an array of high-frequency vibration-exciting piezoelectric bimorph transducers located in the chamber, in the plane of the chamber corresponding to the plane of the foot, corresponding to the sole support zone below the toes and the heel support zone, where each zone includes one to three piezoelectric bimorph transducers. The leg stimulation system is designed so that a person's legs up to the knees can be placed in a closed chamber and encased in a standard type of elastic splint type system. The feet are affected by bimorph type piezoelectric transducers connected to the controller, and the lower legs are affected by acoustic vibrations thanks to the speakers installed in the side walls of the closed chamber. In this way, the pulses sent from the controller control the synchronous operation of bimorph piezoelectric transducers and acoustic speakers, which activates blood flow in the tissues of human legs and increases the efficiency of blood flow stimulation.
摘要:
The invention is directed generally to a method and apparatus for non-invasively determining and intraorbital and intracranial compliance values in mammals including humans.
摘要:
The teachings herein pertain to hole transporting compounds containing a cyclobutyl moiety, which can be made into organic hole conductors and into hole transporting material. Additionally, optoelectronic and photoelectrochemical devices comprising such hole transporting material or hole transporting compound are described, in particular photovoltaic devices, organic-inorganic perovskite films, layered photovoltaic devices, p-n heterojunctions, dye-sensitized solar cells, organic solar cells and solid-state solar cells. Notably, a fabricated perovskite solar cell module using a disclosed HTM compound exhibited a record efficiency over 19.0% with an active area of 30.24 cm 2 .
摘要:
The present invention is directed generally to a method and apparatus for human brain neuroprotection during surgery. The invention includes use of a heart-lung machine (20) to generate periodic rectangular pulsation of blood flow (25). The invention uses a non-invasive cerebrovascular blood flow autoregulation - CA - monitor (30) to continuously record transient functions such as dynamic autoregulation functions of a human brain cerebrovascular autoregulation system and process the data to generate an alarm (70) to indicate CA impairment and take steps to minimize the CA impairment event.
摘要:
The invention describes new spiro[chroman-2,2'-indole] derivatives of formula (I). When compounds of the invention, 1',3',3,4-tetrahydrospiro[chromen-2,2'-indoles], are treated with solution containing cyanide ions, 3,4-dihydropyrane ring opening occurs, resulting in formation of colored 4-nitrophenolate ion, which is detectable colorimetrically.
摘要:
Ectoine-responsive biosensor comprising a recombinant host cell and DNA polynucleotide sequences which encode a transcription factor EutR and inducible promoter operably linked to a coding region, wherein the coding region encodes a reporter gene. The transcription factor through the binding to the inducible promoter regulates transcription of the coding region. The biosensor comprises DNA polynucleotide sequences in a plasmid construct. The use of biosensor comprises a method for detecting ectoine and measuring its concentration.
摘要:
The invention discloses a method for preparation of thermoplastic cellulose acetate composition comprising inorganic fillers, where the method comprises: cellulose acetate fractionation; synthesizing inorganic filler particles from silica gel being a waste product of aluminium fluoride production or from opoka rock; mixing cellulose acetate granules with inorganic filler particles and a plasticizer; extruding and granulating. The method steps allow preparation of thermoplastic polymer compositions with improved flow of melt characteristics, facilitating further processing of the bio-based compositions. The method steps allow lowering energy needs in the extrusion process, decreasing stiffness of extruded cellulose acetate compositions, exploiting sustainable easily available natural and waste materials.
摘要:
The invention is directed to a method and apparatus for non-invasively measuring and monitoring intraorbital pressure waves and intracranial pressure waves in humans. The apparatus includes a pressure applicator applied to the orbital area around a patient's eye and applies an inflatable bladder with an internal pressure sensor to the eyelid of the patient to measure intraorbital pressure waves.