• A direct solar receiver-reactor is built and used for the catalytic photo-thermochemical processing of carbon dioxide. (psu.edu)
  • A computational fluid dynamics (CFD) model, describing fluid flow, radiation transport, and heterogeneous photo- and thermo-chemistry, is used to analyze the CO 2 decomposition process in the 1 wt% tubular quartz reactor. (psu.edu)
  • The Sacramento-Blodgett Forest corridor therefore effectively serves as a mesoscale (~100 km) daytime flow reactor in which the urban aerosols undergo significant aging due to coagulation, condensation, and photochemical processes. (arm.gov)
  • The xanthophyll cycle (XC) dependent non-photochemical chlorophyll fluorescence quenching (NPQ) is one of the most important photoprotective processes that rapidly regulate photosynthesis in diatoms. (uni-konstanz.de)
  • If the biological interpretation is correct, some process must have kept the oxygen being produced in check for millions of years, up until the Great Oxidation Event. (livescience.com)
  • These control scenarios are simulated with photochemical models, which use emissions and meteorological variables to simulate PM2.5 formation, transport, and deposition. (cdc.gov)
  • Air dispersion or photochemical models that simulate how contaminants move from sources through the air to downwind locations, and they may even evaluate the potential for atmospheric deposition to soils and surface waters. (cdc.gov)
  • Anbar suggests non-biological processes could play a role. (livescience.com)
  • The association pathway from monomer to oligomer is critical in a range of biological processes and thus it is of a vital importance to elucidate both atomic-resolution structures of intermediates along the pathway as well as the structure of the final state. (lu.se)
  • According to Manuel Antón from the Department of Applied Physics of the University of Granada, "although these types of emissions were banned by the 1987 Montreal Protocol, our study reveals that stratospheric ozone did not show signs of recovery until 1995. (sciencedaily.com)
  • Our three-dimensional model simulations confirm the increase in CFC-11 emissions, but indicate that this increase may have been as much as 50 per cent smaller as a result of changes in stratospheric processes or dynamics. (nature.com)
  • Catalysts generally react with one or more reactants to form intermediates that subsequently give the final reaction product, in the process of regenerating the catalyst. (wikipedia.org)
  • Flow photochemical reactions generally outperformed batch by a factor of 4 with respect to rate of reaction. (hw.ac.uk)
  • Journal of Flow Chemistry , 10 (1), 327-345. (hw.ac.uk)
  • This was confirmed by the differential effect of the light intensity on the respective silencing efficiency of both types of transformants. (uni-konstanz.de)
  • Drought deciduous species, depending on the region it is situated, would undergo abscission not necessarily due to cold weather, they may undergo this process due to shortage of water which may be limited due to relatively low rainfall and summers with a relatively higher temperature or unexpected prolonged season. (wikipedia.org)
  • These results confirm the poor applicability of this process for the elimination of such dyes. (hindawi.com)
  • Aug. 17, 2020 Little is known about how gases and aerosols made by ocean microbes affect weather and climate, or how pollution could influence this process. (sciencedaily.com)
  • Wastewater from molasses processing contains a large amount of coloured substances that give a recalcitrant dark brown colour and high organic load to the effluent. (ac.ir)
  • This reduces the potential for struvite precipitation, moderates P loads on biological nutrient removal processes and lowers P concentration in the final effluent. (surrey.ac.uk)
  • 10] Bhatkhande D.S, Pangarkar V.G., Beenackers A.A.C.M., Photocatalytic Degradation for Environmental Applications: a Review, Journal of Chemical Technology and Biotechnology , 77 (1): 102-116 (2002). (ac.ir)
  • Specifically for the textile industry, the chemical structure of these compounds is complex, generally of the type azo [ 6 - 8 ]. (hindawi.com)
  • [6] Estimates are that 90% of all commercially produced chemical products involve catalysts at some stage in the process of their manufacture. (wikipedia.org)
  • Bekker, who was not involved in either of the current studies, notes that photochemical processes, in which chemical reactions are driven by different wavelengths of light, can lead to changes in the relative amounts of different forms of sulfur, for instance. (livescience.com)
  • Mechanisms that trigger leaf drop is a process which includes physiological and chemical pathways happening within the plants. (wikipedia.org)
  • The synergistic combination of the spectral and intensity features of solar energy can potentially lead to chemical synthesis processes under milder temperature conditions than those in solar thermochemical processes. (psu.edu)
  • Contribution to journal › Review (Book/Film/Exhibition/etc. (lu.se)
  • Abstract of the paper must be typed in single space within 300 words. (easychair.org)
  • The dry deposition of sulfur dioxide seems to have a systematic impact on ambient estimates of sulfur dioxide in the photochemical model. (cdc.gov)
  • The factors governing the amounts of CO, O_2, and O_3 in the martian atmosphere are investigated using a minimally constrained, one-dimensional photochemical model. (caltech.edu)
  • We feel that there is no need at this time to invoke heterogeneous processes to reconcile models and observations. (caltech.edu)
  • Health assessors may encounter many different types of models. (cdc.gov)
  • Both studies are detailed in the Sept. 28 issue of the journal Science . (livescience.com)
  • This is just a partial list of the types of modeling studies that health assessors may encounter. (cdc.gov)
  • This process results in beneficial therapeutic outcomes including but not limited to the alleviation of pain or inflammation, immunomodulation, and promotion of wound healing and tissue regeneration. (massagemag.com)
  • The modeling results provide assessment of the photochemical and thermochemical effects, and suggest the synergistic enhancement due to the photolytic mechanism on the thermochemical process. (psu.edu)
  • Some gases spewed from different types of volcanoes can consume oxygen, and so as volcanic activity changed over time so would the amount of oxygen in the environment. (livescience.com)
  • Two different types of catalytic monoliths, tubular quartz and zirconia foam, are tested with coatings of 1 and 2 wt% Cu-doped TiO 2 . (psu.edu)
  • Two different types of catalytic monoliths, tubular quartz and zirconia foam, are tested with coatings of 1 and 2 wt% Cu-doped TiO2. (psu.edu)
  • The primary objective of the Carbonaceous Aerosol and Radiative Effects Study (CARES) in 2010 was to investigate the evolution of carbonaceous aerosols of different types and their optical and hygroscopic properties in central California, with a focus on the Sacramento urban plume. (arm.gov)
  • Most WtE processes produce electricity and/or heat directly through combustion or produce a variety of combustible fuels. (easychair.org)
  • Ambrosia dumosa a is a type of Drought Deciduous plant among the Microphyllous species. (wikipedia.org)
  • Encelia farinosa is a type of Drought Deciduous plant among the Broadleaf species. (wikipedia.org)
  • Es coautor del libro Minimally Processed Fruits and Vegetables, editor de 2 libros, autor de más de 40 capítulos en libros y de más de 150 publicaciones científicas en revistas arbitradas de prestigio internacional, es miembro del Consejo Editorial del Journal of Food Protection y del International Journal of Food Microbiology. (udlap.mx)
  • The journal with the most publications in the field of bone piezoelectricity is the International Journal of Oral & Maxillofacial Implants, followed by Implant Dentistry. (bvsalud.org)
  • However, the authors of the study warn that "other anthropogenic effects could complicate the recovery process and result in areas with altered ozone levels. (sciencedaily.com)
  • Heat and light from the sun stimulate such processes which is why ground-level ozone is such a common pollutant in Spain. (sciencedaily.com)
  • The use of coherent beams of light, in the visible or infrared spectrum, in high amounts of energy above 500 milliwatts average power, also known as hot laser therapy, as this type of laser therapy usually produces heat, unlike cold laser therapy. (massagemag.com)
  • It is the process of generating energy in the form of electricity and/or heat from the primary treatment of waste. (easychair.org)
  • The photoprotective NPQ (non-photochemical fluorescence quenching) process allows the plastid to safely dissipate the excess energy absorbed during a light stress. (uni-konstanz.de)
  • Adenosine triphosphate (ATP) is the compound that provides energy for the many natural processes within our body. (massagemag.com)
  • Especially, we want to gain knowledge on the LHC polypeptide(s) involved in the response of the cells to hight light, and to identify the special LHC antenna polypeptide(s) possibly involved iin the control of the NPQ process. (uni-konstanz.de)
  • There are two hallmark phenotypes of allergic asthma: (1) inflammatory, due to a T helper cell type 2 (Th2)-mediated immune response resulting in elevated inflammatory cells in the airways, and (2) airway hyper-reactivity, during which volume and flow of inhaled air decreases as a consequence of airway constriction. (cdc.gov)
  • Since then, laser therapy and its therapeutic applications have evolved greatly, and the use of laser therapy is becoming increasingly common in many types of health care settings. (massagemag.com)
  • Another important input to the PHA process is modeling data, which can supplement the available sampling data and better define the range of possible contaminant concentrations. (cdc.gov)
  • In botany, deciduous is a description of plants that carry out a process which lead to the loss of leaves during a certain time annually. (wikipedia.org)
  • Solar photo-thermochemical processing of CO 2 using an optically and catalytically tuned catalytic monolith can lead to higher decomposition yields than photochemical processes, potentially comparable to those of solar thermochemical approaches while operating at lower temperatures. (psu.edu)
  • Commercial polystyrene Merrifield-type resins have been post-synthetically functionalised with BODIPY photosensitisers via a novel aryl ester linking strategy in continuous-flow. (hw.ac.uk)
  • Laryngeal squamous cell carcinoma (LSCC) is a common tumor type. (bvsalud.org)
  • This phenomenon is a natural process of plants and is caused due to the limitation of water around the environment where the plant is situated. (wikipedia.org)
  • Assessing meteorological variable and process relationships to modeled PM2.5 ammonium nitrate and ammonium sulfate in the central United States. (cdc.gov)
  • Journal of toxicology and environmental health. (cdc.gov)
  • The study was published weeks ago in the Atmospheric Environment journal. (sciencedaily.com)
  • There are geological processes that consume oxygen, so even when biology is pumping it into the environment it doesn't necessarily rise strongly in the atmosphere right away," Anbar said. (livescience.com)
  • Within the abscission zones the types of cells are the same as the other parts of the plant, but with slight difference in abundance or quality. (wikipedia.org)
  • Its combination with other processes, like ozonation [ 18 ], has also been demonstrated to be highly effective for complex matrix wastewater remediation. (hindawi.com)
  • The authors suggest a complex and interdependent dance between biological and geological processes can explain the gap. (livescience.com)