Loading...
  • vessel
  • The photochemical reactor comprises a vessel (20) comprising the fluid (30), a light source (40) for generating UV-radiation (UV1) and emitting it towards the fluid, and a luminescent material (50) arranged between the light source and the fluid for converting at least part of the UV-radiation emitted by the light source to further UV-radiation (UV2) having an increased wavelength compared to the UV-radiation. (patentsencyclopedia.com)
  • polymer
  • 3. A method of making holographic optical devices by changing the index of refraction in selected portions of polymer materials as described in claim 1 further comprising the step of wetting said metal grating with nonane prior to putting said grating between said polymer material and said upper quartz sheet to provide better optical contact with said polymer material. (google.com)
  • compositions
  • However, to my knowledge, there has been no disclosureof the production of compositions of matter comprising highly stable, very sensitive, rapid color-changing photochromic compounds uniformly dispersed throughout polyester resins produced from polycarboxylic acids and polyhydric alcohols. (google.com)
  • composition
  • In such processes it is important that the ink composition is substantially dry before the wrapping process begins, since if it is not then smudging or even removal of the printed indicia can occur. (google.com)
  • A composition utilized in and a method for forming an electrode used in field emission type of display devices said composition is a photosensitive copper conductive composition comprising: a mixture of (a) copper powder at least 70 wt % out of 100 wt % copper powders having a particle size in the range. (google.de)
  • precursor
  • Based on the results of numerous studies, it can be stated that the reduction of active forms of the chlorophyll precursor is a multistep process comprising two or three short-lived intermediates characterized by a singlet ESR signal. (chemweb.com)
  • carbon
  • The evolution of photosynthesis , the process by which plants convert carbon dioxide into sugar and water in the presence of sunlight, was of crucial importance to the development of life on earth. (lindau-nobel.org)
  • the global upper limit on these processes in the carbon cycle has been estimated [ 4 ]. (royalsocietypublishing.org)
  • Unless hydrogen is used as the electron donor, photochemical energy input is needed to produce a reductant (often with additional energy input from photogenerated ATP) capable of reducing carbon dioxide to the redox level of carbohydrate. (royalsocietypublishing.org)
  • reaction
  • 10 In order to increase the photooxidation process, a sufficient number of photons interacted with the photocatalytic materials to carry out the redox reaction of the toxic compounds and determine the reusability of the catalyst. (rsc.org)
  • However, the bottleneck in such artificial photosynthetic schemes is the H2O oxidation half reaction where more efficient catalysts are required that lower the kinetic barrier for this process. (diva-portal.org)
  • LEDs
  • The light sources can comprise respective sets of plural LEDs. (google.es)
  • DETROIT, March 22, 2013 (GLOBE NEWSWIRE) -- Nano Labs Corp. (OTCQB:CTLE) is pleased to announce it has been issued a provisional patent number for the Company's "intelligent illumination system" for greenhouses, that works with commercial light-emitting diodes (LEDs) to reduce energy consumption and improve processes contributing to the growth of plant life in agricultural greenhouses. (thestreet.com)
  • organic
  • Modern topical photoprotection integrates both primary protective factors (e.g., organic or inorganic light filtering agents) that absorb or reflect UV radiation and secondary factors (e.g., antioxidants, osmolytes, and DNA repair enzymes) that can disrupt the photochemical cascade triggered by UV-penetration, thereby limiting skin damage. (skintherapyletter.com)
  • compounds
  • An essential role of enzymes is to catalyze various chemical reactions in the human body and inhibition of the enzymatic activity by small molecules is the mechanism of action of many drugs or tool compounds used to study biological processes. (diva-portal.org)
  • material
  • The luminescent material is removably connected to the photochemical reactor and is separate from the light source. (patentsencyclopedia.com)
  • By having the luminescent material removably connected to the photochemical reactor, separate from the light source, the luminescent material may be exchanged with new luminescent material if the current luminescent material has degraded. (patentsencyclopedia.com)
  • A holographic optical article of manufacture and a process for making it made from a polymeric material in the form of film which is transparent in the infrared region and which is photochemically modified to change its index of refraction. (google.com)
  • 7. A composite comprising the ceramic of claim 1 and at least one other material. (google.es)
  • photosynthesis
  • To honor Academician Alexander Abramovitch Krasnovsky, we present here an educational review on the relation of chlorophyll a fluorescence transient to various processes in photosynthesis. (chemweb.com)
  • This transient is a real signature of photosynthesis, since diverse events can be related to it, such as: changes in redox states of components of the linear electron transport flow, involvement of alternative electron routes, the build-up of a transmembrane pH gradient and membrane potential, activation of different nonphotochemical quenching processes, activation of the Calvin-Benson cycle, and other processes. (chemweb.com)
  • materials
  • The use of photochromic materials as the active ingredien-ts in such articles as data storage devices, re flectants for incident high-intensity radiation, photochemical printing and the like is Well known in the art. (google.com)
  • production
  • The new system reduces energy consumption while at the same time providing improved control over artificial light used to stimulate photochemical activities in plants for growth and the production of chlorophyll. (thestreet.com)
  • layer
  • Heat mirror coatings of the dielectric sandwich type, with silver as the metal layer, present a special challenge in process control. (spie.org)
  • polymeric
  • In processes in which the packaging is formed from a polymeric film (e.g. sweet wrappers) the film passes rapidly from the printing station to a position at which the product is wrapped. (google.com)
  • plants
  • However, another distinct strategy has also taken shape in the last 20 years: one which seeks not to make plants hardier, but rather to boost the basic process underlying all plant growth. (lindau-nobel.org)
  • different
  • The electrical properties of the C 60 nanorods are also examined by utilizing a field effect transistor geometry comprising different C 60 nanorods. (diva-portal.org)
  • made
  • Adherence to these substrates is difficult and is made more difficult when, as is common, they are treated with a release agent (often necessary for subsequent processing of the film to form a product wrapping). (google.com)
  • various
  • Photocatalysis has been used for various environmental processes such as water purification, air purification and disinfection. (rsc.org)
  • review
  • This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. (worldcat.org)