FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004882269> ?p ?o ?g. }

• W2004882269 endingPage "2251" @default.
• W2004882269 startingPage "2251" @default.
• W2004882269 abstract "Since stratospheric particles have a possibility to make a large effect on the climate in a global scale, a number of observations have been carried out using different techniques.1 Those particles were found to consist of mainly sulfuric acid and to be 0.1–1.0 μm in size. Turco and co-workers proposed a model that the particles are formed through chemical and physical processes initiated by photodissociation of OCS (λ&lt;2600 A).2 In order to examine this model, a simulation experiment in a laboratory system has been planned, in which ultraviolet components of SR are utilized. An optical system including a Seya-Namioka monochromator has been designed, constructed, and tuned precisely.3 In this system, the first prefocusing mirror (sphere) deflects the SR beam horizontally by 30°, and the second and the third ones (sphere) focus the beam vertically onto the entrance slit of the monochromator. The grating radius is 0.5 m. The monochromatized photon beam is reflected into the horizontal direction by the postfocusing mirror (toroid). A ray-tracing calculation was performed, and the obtained spot diagrams showed that the widths of the rays are about 100 μm at the two slits, and the spot size is 1.5×0.8 mm2 at the experimental point. These calculated results were confirmed experimentally by using visible and ultraviolet components of SR. From an estimation on the rate of the particle formation using the data available in the literature, the rate determining step was found to be the photodissociation of OCS in the ultraviolet region. At first, the photoabsorption spectra (cross section) were measured at room temperature and at −80 °C (near to the stratospheric temperature). The spectrum is composed of a broad band centered at 2250 Å and of a number of small peaks. Photodissociation rates of OCS at several altitudes have been calculated using the present cross-section values, which indicated that the life of OCS is about 15 years at 20 km and two months at 30 km. It is known that CO and S are formed through the photodissociation of OCS. A computer-controlled mass spectrometer was made for pursuit of the time variation of CO density in the reaction cell, in which the sample gas, a few percent OCS in He, is introduced and irradiated by the photon beam. A chamber has been designed and constructed, in which a pseudostratospheric air is being irradiated by the ultraviolet radiation. A particle counter of laser-scattering type is being connected to this chamber in order to observe the particle number in it. The present study is the first examination applying SR to problems in the stratosphere as a simulated solar radiation. The obtained results have shown opening a new scientific opportunity in the utilization of SR." @default.
• W2004882269 created "2016-06-24" @default.
• W2004882269 creator A5025800946 @default.
• W2004882269 creator A5038082780 @default.
• W2004882269 creator A5048798179 @default.
• W2004882269 date "1989-07-01" @default.
• W2004882269 modified "2023-09-25" @default.
• W2004882269 title "Simulation studies on gas‐to‐particle conversion processes in the stratosphere by using ultraviolet SR (abstract)" @default.
• W2004882269 cites W1990025499 @default.
• W2004882269 cites W2088437624 @default.
• W2004882269 doi "https://doi.org/10.1063/1.1141062" @default.
• W2004882269 hasPublicationYear "1989" @default.
• W2004882269 type Work @default.
• W2004882269 sameAs 2004882269 @default.
• W2004882269 citedByCount "1" @default.
• W2004882269 crossrefType "journal-article" @default.
• W2004882269 hasAuthorship W2004882269A5025800946 @default.
• W2004882269 hasAuthorship W2004882269A5038082780 @default.
• W2004882269 hasAuthorship W2004882269A5048798179 @default.
• W2004882269 hasConcept C111368507 @default.
• W2004882269 hasConcept C120665830 @default.
• W2004882269 hasConcept C121332964 @default.
• W2004882269 hasConcept C121483023 @default.
• W2004882269 hasConcept C127313418 @default.
• W2004882269 hasConcept C14112920 @default.
• W2004882269 hasConcept C168834538 @default.
• W2004882269 hasConcept C178635117 @default.
• W2004882269 hasConcept C185592680 @default.
• W2004882269 hasConcept C192562407 @default.
• W2004882269 hasConcept C2776798109 @default.
• W2004882269 hasConcept C2777813233 @default.
• W2004882269 hasConcept C2778517922 @default.
• W2004882269 hasConcept C38652104 @default.
• W2004882269 hasConcept C41008148 @default.
• W2004882269 hasConcept C54582936 @default.
• W2004882269 hasConcept C6260449 @default.
• W2004882269 hasConcept C75473681 @default.
• W2004882269 hasConcept C81253797 @default.
• W2004882269 hasConceptScore W2004882269C111368507 @default.
• W2004882269 hasConceptScore W2004882269C120665830 @default.
• W2004882269 hasConceptScore W2004882269C121332964 @default.
• W2004882269 hasConceptScore W2004882269C121483023 @default.
• W2004882269 hasConceptScore W2004882269C127313418 @default.
• W2004882269 hasConceptScore W2004882269C14112920 @default.
• W2004882269 hasConceptScore W2004882269C168834538 @default.
• W2004882269 hasConceptScore W2004882269C178635117 @default.
• W2004882269 hasConceptScore W2004882269C185592680 @default.
• W2004882269 hasConceptScore W2004882269C192562407 @default.
• W2004882269 hasConceptScore W2004882269C2776798109 @default.
• W2004882269 hasConceptScore W2004882269C2777813233 @default.
• W2004882269 hasConceptScore W2004882269C2778517922 @default.
• W2004882269 hasConceptScore W2004882269C38652104 @default.
• W2004882269 hasConceptScore W2004882269C41008148 @default.
• W2004882269 hasConceptScore W2004882269C54582936 @default.
• W2004882269 hasConceptScore W2004882269C6260449 @default.
• W2004882269 hasConceptScore W2004882269C75473681 @default.
• W2004882269 hasConceptScore W2004882269C81253797 @default.
• W2004882269 hasIssue "7" @default.
• W2004882269 hasLocation W20048822691 @default.
• W2004882269 hasOpenAccess W2004882269 @default.
• W2004882269 hasPrimaryLocation W20048822691 @default.
• W2004882269 hasRelatedWork W1983988665 @default.
• W2004882269 hasRelatedWork W2005083964 @default.
• W2004882269 hasRelatedWork W2034452974 @default.
• W2004882269 hasRelatedWork W2043988083 @default.
• W2004882269 hasRelatedWork W2066527179 @default.
• W2004882269 hasRelatedWork W2079685530 @default.
• W2004882269 hasRelatedWork W2100289518 @default.
• W2004882269 hasRelatedWork W2786913162 @default.
• W2004882269 hasRelatedWork W1968424088 @default.
• W2004882269 hasRelatedWork W2094095571 @default.
• W2004882269 hasVolume "60" @default.
• W2004882269 isParatext "false" @default.
• W2004882269 isRetracted "false" @default.
• W2004882269 magId "2004882269" @default.
• W2004882269 workType "article" @default.