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Journal articles on the topic 'Ppev'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Beriula, Rhafaela Rico Bertolino, Andressa Fabrina Klauck, and Tânia Pitombo de Oliveira. "Espaço enunciativo urbano." RUA 27, no. I (2021): 149–68. http://dx.doi.org/10.20396/rua.v27ii.8665221.

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Este trabalho tece considerações sobre o acontecimento enunciativo ‘Projeto Pesquisa Escola Verde’ (PPEV), desenvolvido no espaço urbano da cidade de Sinop, região norte do Estado de Mato Grosso, na perspectiva teórica e metodológica da Semântica do Acontecimento. Objetiva apresentar a nomeação, a referência e a designação da formulação do nome do projeto, bem como o funcionamento enunciativo de Educação Ambiental e desenvolvimento sustentável no objeto pesquisado, através de entrevistas realizadas com os idealizadores do PPEV. O resultado deste trabalho apresenta que houve a reescrituração do

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2

Salvio, Riccardo, Saverio Santi, Antonio Toffoletti та Mauro Bassetti. "Electrochemical, in silico and time-resolved EPR behaviour of semiconductive π-conjugated poly(p-phenyleneethynylenevinylene)s (PPEV)". Synthetic Metals 284 (березень 2022): 116993. http://dx.doi.org/10.1016/j.synthmet.2021.116993.

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3

Bjork, Robert E. "Language and the Healing Arts: Some Recent Texts on Medical Writing." Journal of Technical Writing and Communication 15, no. 1 (1985): 49–53. http://dx.doi.org/10.2190/acbm-ppev-tmej-ml7p.

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4

Frey, Matthias, Mahesh K. Sha, Frank Hase, et al. "Building the COllaborative Carbon Column Observing Network (COCCON): long-term stability and ensemble performance of the EM27/SUN Fourier transform spectrometer." Atmospheric Measurement Techniques 12, no. 3 (2019): 1513–30. http://dx.doi.org/10.5194/amt-12-1513-2019.

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Abstract. In a 3.5-year long study, the long-term performance of a mobile, solar absorption Bruker EM27/SUN spectrometer, used for greenhouse gas observations, is checked with respect to a co-located reference Bruker IFS 125HR spectrometer, which is part of the Total Carbon Column Observing Network (TCCON). We find that the EM27/SUN is stable on timescales of several years; the drift per year between the EM27/SUN and the official TCCON product is 0.02 ppmv for XCO2 and 0.9 ppbv for XCH4, which is within the 1σ precision of the comparison, 0.6 ppmv for XCO2 and 4.3 ppbv for XCH4. The bias betwe

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5

Rango, Jessamy J. "A Survey of Ant Species in Three Habitats at Mount St. Helens National Volcanic Monument." Psyche: A Journal of Entomology 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/415183.

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Ants were surveyed in three habitats at Mount St. Helens in 2008. The area most impacted by the 1980 eruption is the Pumice Plain. Less impacted is the Blowdown Zone where trees were toppled due to the blast. Two habitats were surveyed in the Pumice Plain varying in vegetation density (Pumice Plain Low-Vegetation (PPLV) and Pumice Plain High-Vegetation (PPHV)), and one habitat was surveyed in the Blowdown Zone (BDZ). Ten ant species were collected with the most species collected from the BDZ habitat and the least from the PPLV habitat. Ant abundance was higher at the BDZ and PPHV habitats than

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Berezina, E. V., A. V. Vasileva, K. B. Moiseenko та ін. "Near-Surface Air Content of CH<sub>4</sub>, СО<sub>2</sub>, СО and δ<sup>13</sup>C–СH<sub>4</sub> in Moscow According to <i>In Situ</i> Observations". Известия Российской академии наук. Физика атмосферы и океана 59, № 5 (2023): 569–84. http://dx.doi.org/10.31857/s0002351523050036.

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Near-surface observations of air mixing ratios of CH4, CO2, CO, benzene, and δ13C–СH4 at the IAP-RAS site in Moscow for years 2018–2020 are analyzed to describe typical interannual, seasonal, and diurnal variations. The highest mixing ratios of CH4, CO2, and CO (above 2.2, 430, and 0.2 ppmv, respectively) are mostly observed in winter as a result of the seasonal maxima in the emissions of these gases from motor transport and energy sectors and the slow removal of the emissions from the near-surface air due to suppressed turbulent vertical mixing in the cold season. The highest impact of local

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7

Dhanya, G., T. S. Pranesha, K. Nagaraja, D. M. Chate, and G. Beig. "Variation of Ozone, Carbon Monoxide, and Oxides of Nitrogen at Bengaluru, India." Journal of Scientific Research 14, no. 2 (2022): 459–70. http://dx.doi.org/10.3329/jsr.v14i2.55626.

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The present study analyses the continuous in-situ observations of surface ozone (O3), carbon monoxide (CO), and nitrogen oxides (NOX) conducted in an urban location, Bengaluru, India, during the year 2019 (January to December). The seasonal concentration of O3 fluctuated with the highest concentrations in the summer (39.6 ppbv) and winter (40.4 ppbv) and the lowest concentrations during the monsoon (16.8 ppbv). The seasonal mixing ratio of CO showed the highest value in post-monsoon (1.71 ppmv) and lowest during monsoon (0.79 ppmv). The seasonal trend of NOX showed highest in winter (56.8 ppbv

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8

Tang, Wenfu, Avelino F. Arellano, Joshua P. DiGangi, et al. "Evaluating high-resolution forecasts of atmospheric CO and CO<sub>2</sub> from a global prediction system during KORUS-AQ field campaign." Atmospheric Chemistry and Physics 18, no. 15 (2018): 11007–30. http://dx.doi.org/10.5194/acp-18-11007-2018.

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Abstract. Accurate and consistent monitoring of anthropogenic combustion is imperative because of its significant health and environmental impacts, especially at city-to-regional scale. Here, we assess the performance of the Copernicus Atmosphere Monitoring Service (CAMS) global prediction system using measurements from aircraft, ground sites, and ships during the Korea-United States Air Quality (KORUS-AQ) field study in May to June 2016. Our evaluation focuses on CAMS CO and CO2 analyses as well as two higher-resolution forecasts (16 and 9 km horizontal resolution) to assess their capability

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9

O'Shea, S. J., S. J. B. Bauguitte, M. W. Gallagher, D. Lowry, and C. J. Percival. "Development of a cavity enhanced absorption spectrometer for airborne measurements of CH<sub>4</sub> and CO<sub>2</sub>." Atmospheric Measurement Techniques Discussions 6, no. 1 (2013): 1–41. http://dx.doi.org/10.5194/amtd-6-1-2013.

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Abstract. High-resolution CH4 and CO2 measurements were made onboard the FAAM BAe 146 UK atmospheric research aircraft during a number of field campaigns. The system was based on an infrared spectrometer using the cavity enhanced absorption spectroscopy technique. Correction functions to convert the mole fractions retrieved from the spectroscopy to dry air mole fractions were derived using laboratory experiments and over a 3 month period showed good stability. Long-term performance of the system was monitored using WMO traceable calibration gases. During the first year of operation (29 flights

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10

Martirosyan, Hosam El din Aboul Anean, Dina M. D. Bader, M. Al-Dossari, N. S. Abd EL-Gawaad, Heba A. Shaat, and L. O. Mallasy. "Nano edible coatings and films combined with zinc oxide and pomegranate peel active phenol compounds to prolong shelf life of minimally processed pomegranates." Dietary Supplements and Nutraceuticals 2, no. 3 (2023): 1. http://dx.doi.org/10.31989/dsn.v2i3.1087.

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ABSTRACTEdible coating and film from chitosan and incorporating it with the action of ZnONPs on active phenol compounds from extracts of pomegranate peel (PPE). The physical and chemical properties of edible films made with zinc oxide ZnONPs and active phenol compounds extracted from pomegranate peel (PPE) were studied. Adding ZnONPs with active phenol compounds from extracted pomegranate peel (PPE) to chitosan films can provide safe edible films, decrease microbial growth, consequently, prolong the shelf life of pomegranates, and improve the physiochemical stability of the pomegranate. The su

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11

Nakazawa, Takakiyo, Toshinobu Machida, Kenji Esumi, et al. "Measurements of CO2 and CH4 concentrations in air in a polar ice core." Journal of Glaciology 39, no. 132 (1993): 209–15. http://dx.doi.org/10.1017/s0022143000015860.

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AbstractDry and wet air-extraction systems and precise analysis systems of the CO2and CH4concentrations for a polar ice core were developed to reconstruct their ancient levels. A dry-extraction system was capable of crushing an ice sample of 1000 g into fine powder within 2 min, and its air-extraction efficiency was found to be 98%. The CO2and CH4concentrations of extracted air were determined using gas chromatography with a flame-ionized detector. The overall precision of our measurements, including air extraction, was estimated to be better than ± 1 ppmv for CO2and + 10 ppbv for CH4. Prelimi

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Anean, Hosam Aboul, L. O. Mallasiy, Dina M. D. Bader, and Heba A. Shaat. "Nano Edible Coatings and Films Combined with Zinc Oxide and Pomegranate Peel Active Phenol Compounds Has Been to Extend the Shelf Life of Minimally Processed Pomegranates." Materials 16, no. 4 (2023): 1569. http://dx.doi.org/10.3390/ma16041569.

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Edible coating and film from chitosan and incorporating it with the action of ZnONPs on active phenol compounds from extracts of pomegranate peel (PPE) The physical and chemical properties of edible films composed of zinc oxide ZnONPs and active phenol compounds extracted from pomegranate peel (PPE) were investigated. Adding ZnONPs with active phenol compounds from extracted pomegranate peel(PPE) to chitosan films can provide safe edible films, decrease microbial growth and consequently prolong the shelf life of pomegranates, as well as improve the physiochemical stability of the pomegranate.

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13

Nakazawa, Takakiyo, Toshinobu Machida, Kenji Esumi, et al. "Measurements of CO2 and CH4 concentrations in air in a polar ice core." Journal of Glaciology 39, no. 132 (1993): 209–15. http://dx.doi.org/10.3189/s0022143000015860.

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AbstractDry and wet air-extraction systems and precise analysis systems of the CO2 and CH4 concentrations for a polar ice core were developed to reconstruct their ancient levels. A dry-extraction system was capable of crushing an ice sample of 1000 g into fine powder within 2 min, and its air-extraction efficiency was found to be 98%. The CO2 and CH4 concentrations of extracted air were determined using gas chromatography with a flame-ionized detector. The overall precision of our measurements, including air extraction, was estimated to be better than ± 1 ppmv for CO2 and + 10 ppbv for CH4. Pr

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14

Larsson, Richard, Yasuko Kasai, Takeshi Kuroda, et al. "Mars submillimeter sensor on microsatellite: sensor feasibility study." Geoscientific Instrumentation, Methods and Data Systems 7, no. 4 (2018): 331–41. http://dx.doi.org/10.5194/gi-7-331-2018.

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Abstract. We present a feasibility study for a submillimeter instrument on a small Mars platform now under construction. The sensor will measure the emission from atmospheric molecular oxygen, water, ozone, and hydrogen peroxide in order to retrieve their volume mixing ratios and the changes therein over time. In addition to these, the instrument will be able to limit the crustal magnetic field, and retrieve temperature and wind speed with various degrees of precision and resolution. The expected measurement precision before spatial and temporal averaging is 15 to 25 ppmv for the molecular oxy

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15

Verma, R. L., L. K. Sahu, Y. Kondo, et al. "Temporal variation of elemental carbon in Guangzhou, China, in summer 2006." Atmospheric Chemistry and Physics Discussions 9, no. 6 (2009): 24629–67. http://dx.doi.org/10.5194/acpd-9-24629-2009.

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Abstract. In situ measurements of the mass concentration of elemental carbon (EC) and mixing ratios of carbon monoxide (CO) and carbon dioxide (CO2) were made at Guangzhou, an urban measurement site in the Pearl River Delta (PRD), China, in July 2006. The average±standard deviation (SD) concentrations of EC, CO, and CO2 were 4.7±2.3 μg C m−3, 798±459 ppbv and 400±13 ppmv, respectively. The trends of these species were mainly controlled by synoptic-scale changes in meteorology during the campaign. Based on back trajectories, data are analyzed separately for two different air mass types represen

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16

Mao, Jie, Qian Liu, Shujing Wang, et al. "The Influence of Poly(phenyleneethynylene) Side Chain Structure on Single-Walled Carbon Nanotubes Hybrid Photovoltaic Cells." Journal of Nanoscience and Nanotechnology 8, no. 7 (2008): 3343–50. http://dx.doi.org/10.1166/jnn.2008.131.

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A novel poly(phenyleneethynylene)/single walled carbon nanotubes (SWNTs) donor-acceptor nanohybrid system was constructed based on the bulk heterojunction concept, and their photovoltaic (PV) properties were studied. Comparing with that of the pristine polymer poly(phenyleneethynylene) (PPE) device, the PV performance of the SWNTs/PPE hybrid is dramatically improved. The origin of open-circuit voltage (Voc) of the pristine polymer PPE device and SWNTs/PPE device was explained by metal-insulator-metal (MIM) diode model and pinning mechanism, respectively. Furthermore, incorporation of sensitizi

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17

Kohl, Lukas, Markku Koskinen, Kaisa Rissanen, et al. "Technical note: Interferences of volatile organic compounds (VOCs) on methane concentration measurements." Biogeosciences 16, no. 17 (2019): 3319–32. http://dx.doi.org/10.5194/bg-16-3319-2019.

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Abstract. Studies that quantify plant methane (CH4) emission rely on the accurate measurement of small changes in the mixing ratio of CH4 that coincide with much larger changes in the mixing ratio of volatile organic compounds (VOCs). Here, we assessed whether 11 commonly occurring VOCs (e.g. methanol, α- and β-pinene, Δ3-carene) interfered with the quantitation of CH4 by five laser-absorption spectroscopy and Fourier-transformed infrared spectroscopy (FTIR) based CH4 analysers, and quantified the interference of seven compounds on three instruments. Our results showed minimal interference wit

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Verma, R. L., L. K. Sahu, Y. Kondo, et al. "Temporal variations of black carbon in Guangzhou, China, in summer 2006." Atmospheric Chemistry and Physics 10, no. 14 (2010): 6471–85. http://dx.doi.org/10.5194/acp-10-6471-2010.

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Abstract. In situ measurements of the mass concentration of black carbon (BC) and mixing ratios of carbon monoxide (CO) and carbon dioxide (CO2) were made at Guangzhou, an urban measurement site in the Pearl River Delta (PRD), China, in July 2006. The average ± standard deviation (SD) concentrations of BC, CO, and CO2 were 4.7± 2.3 μgC m−3, 798± 459 ppbv, and 400± 13 ppmv, respectively. The trends of these species were mainly controlled by synoptic-scale changes in meteorology during the campaign. Based on back trajectories, data are analyzed separately for two different air mass types represe

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Kuttippurath, J., S. Godin-Beekmann, F. Lefèvre, G. Nikulin, M. L. Santee, and L. Froidevaux. "Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997." Atmospheric Chemistry and Physics Discussions 12, no. 3 (2012): 6877–908. http://dx.doi.org/10.5194/acpd-12-6877-2012.

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Abstract. We present a detailed discussion of the chemical and dynamical processes in the Arctic winters 1996/1997 and 2010/2011 with high resolution chemical transport model (CTM) simulations and space-based observations. In the Arctic winter 2010/2011, the lower stratospheric minimum temperatures were below 195 K for a record period, from December to mid-April, and a strong and stable vortex was present during that period. Analyses with the Mimosa-Chim CTM simulations show that the chemical ozone loss started by early January and progressed slowly to 1 ppmv (parts per million by volume) by l

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Dittmer, J. J., K. Petritsch, E. A. Marseglia, R. H. Friend, H. Rost, and A. B. Holmes. "Photovoltaic properties of MEH-PPV/PPEI blend devices." Synthetic Metals 102, no. 1-3 (1999): 879–80. http://dx.doi.org/10.1016/s0379-6779(98)00852-2.

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М.В., МАКАРОВА, ФОКА С.Ч., ИОНОВ Д.В., КОСЦОВ В.С., ИВАХОВ В.М. та ПАРАМОНОВА Н.Н. "ХАРАКТЕРИСТИКА ВЫБРОСОВ ПАРНИКОВЫХ ГАЗОВ С ТЕРРИТОРИИ САНКТ-ПЕТЕРБУРГСКОЙ АГЛОМЕРАЦИИ ПО РЕЗУЛЬТАТАМ МОБИЛЬНЫХ ИЗМЕРИТЕЛЬНЫХ КАМПАНИЙ ЕММЕ 2019 И 2020 ГГ". Optika atmosfery i okeana 37, № 8(427) (2024): 653–64. http://dx.doi.org/10.15372/aoo20240805.

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Санкт-Петербург - второй по численности населения город Российской Федерации и четвертый в Европе. Согласно официальной статистике в городе постоянно проживают ~ 5,6 млн человек. С целью получения экспериментальных оценок выбросов парниковых газов с территории Санкт-Петербургской агломерации был разработан оригинальный комплексный подход, реализованный в рамках измерительных кампаний EMME (Emission Monitoring Mobile Experiment) 2019 и 2020 гг. Проведено обобщение результатов мобильных экспериментов 2019 и 2020 гг. Показано, что период «март - начало мая», выбранный для проведения кампаний ЕММЕ

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Chauhan, S., M. Höpfner, G. P. Stiller, et al. "MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature, O<sub>3</sub>, HNO<sub>3</sub>, N<sub>2</sub>O, H<sub>2</sub>O and relative humidity over ice: retrievals and comparison to MLS." Atmospheric Measurement Techniques Discussions 2, no. 1 (2009): 439–87. http://dx.doi.org/10.5194/amtd-2-439-2009.

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Abstract. During several periods since 2005 the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat has performed observations dedicated to the region of the upper troposphere/lower stratosphere (UTLS). For the duration of November/December 2005 global distributions of temperature and several trace gases from MIPAS UTLS-1 mode measurements have been retrieved using the IMK/IAA (Institut für Meteorologie und Klimaforschung/Instituto de Astrofísica de Andalucía) scientific processor. In the UTLS region a vertical resolution of 2.5 to 3 km has been achieved. The retrieved

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23

Kuttippurath, J., S. Godin-Beekmann, F. Lefèvre, M. L. Santee, L. Froidevaux, and A. Hauchecorne. "Variability of Antarctic ozone loss in the last decade (2004–2013): high resolution simulations compared to Aura MLS observations." Atmospheric Chemistry and Physics Discussions 14, no. 20 (2014): 28203–30. http://dx.doi.org/10.5194/acpd-14-28203-2014.

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Abstract. A detailed analysis of the polar ozone loss processes during ten recent Antarctic winters is presented with high resolution Mimosa-Chim model simulations and high frequency polar vortex observations from the Aura Microwave Limb Sounder (MLS) instrument. Our model results for the Antarctic winters 2004–2013 show that chemical ozone loss starts in the edge region of the vortex at equivalent latitudes (EqLs) of 65–69° S in mid-June/July. The loss progresses with time at higher EqLs and intensifies during August–September over the range 400–600 K. The loss peaks in late September/early O

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Kuttippurath, J., S. Godin-Beekmann, F. Lefèvre, M. L. Santee, L. Froidevaux, and A. Hauchecorne. "Variability in Antarctic ozone loss in the last decade (2004–2013): high-resolution simulations compared to Aura MLS observations." Atmospheric Chemistry and Physics 15, no. 18 (2015): 10385–97. http://dx.doi.org/10.5194/acp-15-10385-2015.

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Abstract. A detailed analysis of the polar ozone loss processes during 10 recent Antarctic winters is presented with high-resolution MIMOSA–CHIM (Modèle Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection avec CHIMie) model simulations and high-frequency polar vortex observations from the Aura microwave limb sounder (MLS) instrument. The high-frequency measurements and simulations help to characterize the winters and assist the interpretation of interannual variability better than either data or simulations alone. Our model results for the Antarctic winters of 2004–201

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25

Kuttippurath, J., S. Godin-Beekmann, F. Lefèvre, G. Nikulin, M. L. Santee, and L. Froidevaux. "Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997." Atmospheric Chemistry and Physics 12, no. 15 (2012): 7073–85. http://dx.doi.org/10.5194/acp-12-7073-2012.

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Abstract. We present a detailed discussion of the chemical and dynamical processes in the Arctic winters 1996/1997 and 2010/2011 with high resolution chemical transport model (CTM) simulations and space-based observations. In the Arctic winter 2010/2011, the lower stratospheric minimum temperatures were below 195 K for a record period of time, from December to mid-April, and a strong and stable vortex was present during that period. Simulations with the Mimosa-Chim CTM show that the chemical ozone loss started in early January and progressed slowly to 1 ppmv (parts per million by volume) by la

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26

Chauhan, S., M. Höpfner, G. P. Stiller, et al. "MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature, O<sub>3</sub>, HNO<sub>3</sub>, N<sub>2</sub>O, H<sub>2</sub>O and relative humidity over ice: retrievals and comparison to MLS." Atmospheric Measurement Techniques 2, no. 2 (2009): 337–53. http://dx.doi.org/10.5194/amt-2-337-2009.

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Abstract. During several periods since 2005 the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat has performed observations dedicated to the region of the upper troposphere/lower stratosphere (UTLS). For the duration of November/December 2005 global distributions of temperature and several trace gases from MIPAS UTLS-1 mode measurements have been retrieved using the IMK/IAA (Institut für Meteorologie und Klimaforschung/Instituto de Astrofísica de Andalucía) scientific processor. In the UTLS region a vertical resolution of 3 km for temperaure, 3 to 4 km for H2O, 2.5

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Bocos-Bintintan, Victor, and Ileana Andreea Ratiu. "Fast Sensing of Hydrogen Cyanide (HCN) Vapors Using a Hand-Held Ion Mobility Spectrometer with Nonradioactive Ionization Source." Sensors 21, no. 15 (2021): 5045. http://dx.doi.org/10.3390/s21155045.

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Sensitive real-time detection of vapors produced by toxic industrial chemicals (TICs) always represents a stringent priority. Hydrogen cyanide (HCN) is definitely a TIC, being widely used in various industries and as an insecticide; it is a reactive, very flammable, and highly toxic compound that affects the central nervous system, cardiovascular system, eyes, nose, throat, and also has systemic effects. Moreover, HCN is considered a blood chemical warfare agent. This study was focused toward quick detection and quantification of HCN in air using time-of-flight ion mobility spectrometry (ToF I

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Fiorucci, I., G. Muscari, L. Froidevaux, and M. L. Santee. "Ground-based stratospheric O<sub>3</sub> and HNO<sub>3</sub> measurements at Thule, Greenland: an intercomparison with Aura MLS observations." Atmospheric Measurement Techniques 6, no. 9 (2013): 2441–53. http://dx.doi.org/10.5194/amt-6-2441-2013.

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Abstract. In response to the need for improving our understanding of the evolution and the interannual variability of the winter Arctic stratosphere, in January 2009 a Ground-Based Millimeter-wave Spectrometer (GBMS) was installed at the Network for the Detection of Atmospheric Composition Change (NDACC) site in Thule (76.5° N, 68.8° W), Greenland. In this work, stratospheric GBMS O3 and HNO3 vertical profiles obtained from Thule during the winters 2010 (HNO3 only), 2011 and 2012 are characterized and intercompared with co-located measurements of the Aura Microwave Limb Sounder (MLS) experimen

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Fiorucci, I., G. Muscari, L. Froidevaux, and M. L. Santee. "Ground-based stratospheric O<sub>3</sub> and HNO<sub>3</sub> measurements at Thule, Greenland: an intercomparison with Aura MLS observations." Atmospheric Measurement Techniques Discussions 6, no. 2 (2013): 2979–3011. http://dx.doi.org/10.5194/amtd-6-2979-2013.

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Abstract. In response to the need for improving our understanding of the evolution and the interannual variability of the winter Arctic stratosphere, in January 2009 a ground-based millimeter-wave spectrometer (GBMS) was installed at the Network for the Detection of Atmospheric Composition Change (NDACC) site in Thule (76.5° N, 68.8° W), Greenland. In this work, stratospheric GBMS O3 and HNO3 vertical profiles obtained from Thule during winters 2010 (HNO3 only), 2011 and 2012 are characterized and intercompared with co-located Aura MLS measurements. Using a recently developed algorithm based o

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Raffalski, U., G. Hochschild, G. Kopp, and J. Urban. "Evolution of stratospheric ozone during winter 2002/2003 as observed by a ground-based millimetre wave radiometer at Kiruna, Sweden." Atmospheric Chemistry and Physics Discussions 5, no. 1 (2005): 131–54. http://dx.doi.org/10.5194/acpd-5-131-2005.

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Abstract. We present ozone measurements of the millimetre wave radiometer installed at the Swedish Institute of Space Physics (Institutet för rymdfysik, IRF) in Kiruna (67.8° N, 20.4° E, 420 m a.s.l.). Nearly continuous operation in the winter of 2002/2003 allow us to give an overview of ozone evolution in the stratosphere between 15 and 55 km. In this study we present a detailed analysis of the Arctic winter 2002/2003. By means of a methodology using equivalent latitudes we investigate the meteorological processes in the stratosphere during the entire winter/spring period. During the course o

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Raffalski, U., G. Hochschild, G. Kopp, and J. Urban. "Evolution of stratospheric ozone during winter 2002/2003 as observed by a ground-based millimetre wave radiometer at Kiruna, Sweden." Atmospheric Chemistry and Physics 5, no. 5 (2005): 1399–407. http://dx.doi.org/10.5194/acp-5-1399-2005.

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Abstract. We present ozone measurements from the millimetre wave radiometer installed at the Swedish Institute of Space Physics (Institutet för rymdfysik, IRF) in Kiruna (67.8° N, 20.4° E, 420 m asl). Nearly continuous operation in the winter of 2002/2003 allows us to give an overview of ozone evolution in the stratosphere between 15 and 55 km. In this study we present a detailed analysis of the Arctic winter 2002/2003. By means of a methodology using equivalent latitudes we investigate the meteorological processes in the stratosphere during the entire winter/spring period. During the course o

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Ma, J. Z., W. Wang, Y. Chen, et al. "The IPAC-NC field campaign: a pollution and oxidization pool in the lower atmosphere over Huabei, China." Atmospheric Chemistry and Physics 12, no. 9 (2012): 3883–908. http://dx.doi.org/10.5194/acp-12-3883-2012.

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Abstract. In the past decades, regional air pollution characterized by photochemical smog and grey haze-fog has become a severe environmental problem in China. To investigate this, a field measurement campaign was performed in the Huabei region, located between 32–42° N latitude in eastern China, during the period 2 April–16 May 2006 as part of the project "Influence of Pollution on Aerosols and Cloud Microphysics in North China" (IPAC-NC). It appeared that strong pollution emissions from urban and industrial centers tend to accumulate in the lower atmosphere over the central area of Huabei. W

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Egbe, Daniel Ayuk Mbi, Carsten Peter Roll, Eckhard Birckner, Ulrich-Walter Grummt, Regina Stockmann, and Elisabeth Klemm. "Side Chain Effects in Hybrid PPV/PPE Polymers." Macromolecules 35, no. 10 (2002): 3825–37. http://dx.doi.org/10.1021/ma012195g.

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Ricaud, P., B. Barret, J. L. Attié, et al. "Impact of land convection on troposphere-stratosphere exchange in the tropics." Atmospheric Chemistry and Physics 7, no. 21 (2007): 5639–57. http://dx.doi.org/10.5194/acp-7-5639-2007.

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Abstract. The mechanism of troposphere-stratosphere exchange in the tropics was investigated from space-borne observations of the horizontal distributions of tropospheric-origin long-lived species, nitrous oxide (N2O), methane (CH4) and carbon monoxide (CO), from 150 to 70 hPa in March-April-May by the ODIN/Sub-Millimeter Radiometer (SMR), the Upper Atmosphere Research Satellite (UARS)/Halogen Occultation Experiment (HALOE) and the TERRA/Measurements Of Pollution In The Troposphere (MOPITT) instruments in 2002–2004, completed by recent observations of the AURA/Microwave Limb Sounder (MLS) inst

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Fedyanin, V. V., and I. S. Osad'ko. "Photon statistics in blinking fluorescence of single PPV-PPyV molecule." Journal of Chemical Physics 135, no. 12 (2011): 125103. http://dx.doi.org/10.1063/1.3640891.

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Remsberg, Ellis, V. Lynn Harvey, Arlin Krueger, Larry Gordley, John C. Gille, and James M. Russell III. "Technical note: LIMS observations of lower stratospheric ozone in the southern polar springtime of 1978." Atmospheric Chemistry and Physics 20, no. 6 (2020): 3663–68. http://dx.doi.org/10.5194/acp-20-3663-2020.

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Abstract. The Nimbus 7 Limb Infrared Monitor of the Stratosphere (LIMS) instrument operated from 25 October 1978 through 28 May 1979. This note focuses on its Version 6 (V6) data and indications of ozone loss in the lower stratosphere of the Southern Hemisphere subpolar region during the last week of October 1978. We provide profiles and maps that show V6 ozone values of only 2 to 3 ppmv at 46 hPa within the edge of the polar vortex near 60∘ S from late October through mid-November 1978. There are also low values of V6 nitric acid (∼3 to 6 ppbv) and nitrogen dioxide (< 1 ppbv) at the same l

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Ma, J. Z., W. Wang, Y. Chen, et al. "The IPAC-NC field campaign: a pollution and oxidization pool in the lower atmosphere over Huabei, China." Atmospheric Chemistry and Physics Discussions 11, no. 10 (2011): 27701–62. http://dx.doi.org/10.5194/acpd-11-27701-2011.

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Abstract. In the past decades, regional air pollution characterized by photochemical smog and grey haze-fog has become a severe environmental problem in China. To investigate this, a field measurement campaign was performed in the Huabei region, located between 32°–42° N latitude in Eastern China, during the period 2 April–16 May 2006 as part of the project "Influence of Pollution on Aerosols and Cloud Microphysics in North China" (IPAC-NC). It was found that strong pollution emissions from urban and industrial centers accumulate in the lower atmosphere over the core area of Huabei. We observe

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Kim, Ki-Youn, and Jung-Kon Kim. "Indoor Concentration Distributions of Ammonia and Sulfur-Based Odorous Substances According to Types of Laying Hen Houses in South Korea." Atmosphere 15, no. 8 (2024): 980. http://dx.doi.org/10.3390/atmos15080980.

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In South Korea, environmental complaints related to livestock odors continue to increase, and various efforts are underway to overcome them. An objective of this study is to monitor indoor concentrations of ammonia and sulfur-based odorous substances emitted from laying hen houses in South Korea through on-site visits for one year to understand their temporal emission patterns. The highest concentration was found in ammonia (NH3), at 6.92 ppmv, followed by hydrogen sulfide (H2S), at 8.98 ppbv. The concentrations of methyl mercaptan (CH3SH), dimethyl sulfide (DMS), and dimethyldisulfide (DMDS)

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Buchwitz, M., R. de Beek, J. P. Burrows, et al. "Atmospheric methane and carbon dioxide from SCIAMACHY satellite data: initial comparison with chemistry and transport models." Atmospheric Chemistry and Physics 5, no. 4 (2005): 941–62. http://dx.doi.org/10.5194/acp-5-941-2005.

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Abstract. The remote sensing of the atmospheric greenhouse gases methane (CH4) and carbon dioxide (CO2) in the troposphere from instrumentation aboard satellites is a new area of research. In this manuscript, results obtained from observations of the up-welling radiation in the near-infrared by SCIAMACHY on board ENVISAT are presented. Vertical columns of CH4, CO2 and oxygen (O2) have been retrieved and the (air or) O2-normalised CH4 and CO2 column amounts, the dry air column averaged mixing ratios XCH4 and XCO2 derived. In this manuscript the first results, obtained by using the version 0.4 o

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Hoppe, H., N. S. Sariciftci, D. A. M. Egbe, D. Mühlbacher, and M. Koppe. "Plastic Solar Cells Based on Novel PPE-PPV-Copolymers." Molecular Crystals and Liquid Crystals 426, no. 1 (2005): 255–63. http://dx.doi.org/10.1080/15421400590891227.

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Wang, Yiqing, James N. Wilson, Mark D. Smith, and Uwe H. F. Bunz. "TEMPO-Substituted PPEs: Polystyrene-PPE Graft Copolymers and Double Graft Copolymers." Macromolecules 37, no. 26 (2004): 9701–8. http://dx.doi.org/10.1021/ma048308o.

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Zarzana, Kyle J., Vanessa Selimovic, Abigail R. Koss, et al. "Primary emissions of glyoxal and methylglyoxal from laboratory measurements of open biomass burning." Atmospheric Chemistry and Physics 18, no. 20 (2018): 15451–70. http://dx.doi.org/10.5194/acp-18-15451-2018.

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Abstract. We report the emissions of glyoxal and methylglyoxal from the open burning of biomass during the NOAA-led 2016 FIREX intensive at the Fire Sciences Laboratory in Missoula, MT. Both compounds were measured using cavity-enhanced spectroscopy, which is both more sensitive and more selective than methods previously used to determine emissions of these two compounds. A total of 75 burns were conducted, using 33 different fuels in 8 different categories, providing a far more comprehensive dataset for emissions than was previously available. Measurements of methylglyoxal using our instrumen

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Chen, Zhi David David, and Ronak Ali. "High-Performance Humidity Sensor Capable for Monitoring Low-Moisture Levels in Energy Industries." ECS Meeting Abstracts MA2024-01, no. 51 (2024): 2766. http://dx.doi.org/10.1149/ma2024-01512766mtgabs.

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Humidity sensors are extensively used in industrial processing and environmental control. There are two categories of humidity sensors: High-humidity (relative humidity) measurement and Low-humidity (moisture) measurement. The proper units for low-humidity measurement are dew point and parts per million in volume (ppmv) or parts per billion in volume (ppbv). It is very important to monitor moisture levels in natural gas during processing and transportation in pipelines. It is of critical importance to monitor moisture levels in lithium-ion battery manufacturing. In these cases, the moisture le

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Nara, Hideki, Hiroshi Tanimoto, Yukihiro Nojiri, et al. "CO emissions from biomass burning in South-east Asia in the 2006 El Niño year: shipboard and AIRS satellite observations." Environmental Chemistry 8, no. 2 (2011): 213. http://dx.doi.org/10.1071/en10113.

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Environmental contextAtmospheric carbon monoxide greatly affects the abundance of environmentally important gases, including methane, hydrochlorofluorocarbons and tropospheric ozone. We present evidence for episodes of CO pollution over the tropical Pacific Ocean resulting from intensive biomass burning in South-east Asia and Northern Australia during the 2006 El Niño year. We discuss the locations of the CO emissions and their long-range transport. AbstractBiomass burning is often associated with climate oscillations. For example, biomass burning in South-east Asia is strongly linked to El Ni

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Badhan, Riasad Azim, Aaron Swartz, Ronak Ali, et al. "A Sensor System for Trace Moisture Measurement in Oils and Lubricants." ECS Meeting Abstracts MA2025-01, no. 59 (2025): 2824. https://doi.org/10.1149/ma2025-01592824mtgabs.

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Oils and lubricants play an essential role in maintaining equipment efficiency and minimizing wear in diverse industrial applications. However, even trace levels of water or moisture accumulation in oil over time may lead to premature component failure, compromised safety, and reduced equipment service life. Therefore, precise monitoring of moisture content is critical for ensuring equipment reliability and operational integrity. Relative humidity (RH) sensors are used for high-humidity measurement, and moisture sensor or dew point sensors are usually used for low-humidity measurement (0.5 ppm

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Konkin, A. L., S. Sensfuss, H. K. Roth, et al. "LESR study on PPV–PPE/PCBM composites for organic photovoltaics." Synthetic Metals 148, no. 2 (2005): 199–204. http://dx.doi.org/10.1016/j.synthmet.2004.09.023.

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Bocos-Bintintan, Victor, and Ileana Andreea Ratiu. "Hunting for Toxic Industrial Chemicals: Real-Time Detection of Carbon Disulfide Traces by Means of Ion Mobility Spectrometry." Toxics 8, no. 4 (2020): 121. http://dx.doi.org/10.3390/toxics8040121.

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Sensitive real-time detection of vapors produced by toxic industrial chemicals (TICs) represents a stringent priority nowadays. Carbon disulfide (CS2) is such a chemical, being widely used in manufacturing synthetic textile fibers and as a solvent. CS2 is simultaneously a very reactive, highly flammable, irritant, corrosive, and highly toxic compound, affecting the central nervous system, cardiovascular system, eyes, kidneys, liver, skin, and reproductive system. This study was directed towards quick detection and quantification of CS2 in air, using time-of-flight ion mobility spectrometry (IM

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Susarova, Diana K., Ekaterina A. Khakina, Pavel A. Troshin, et al. "Photovoltaic performance of PPE-PPV copolymers: effect of the fullerene component." J. Mater. Chem. 21, no. 7 (2011): 2356–61. http://dx.doi.org/10.1039/c0jm02681f.

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Egbe, Daniel A. M., Hartwig Tillmann, Eckhard Birckner, and Elisabeth Klemm. "Synthesis and Properties of Novel Well-Defined Alternating PPE/PPV Copolymers." Macromolecular Chemistry and Physics 202, no. 13 (2001): 2712–26. http://dx.doi.org/10.1002/1521-3935(20010901)202:13<2712::aid-macp2712>3.0.co;2-g.

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Talbot, R., H. Mao, E. Scheuer, et al. "Factors influencing the large-scale distribution of Hg° in the Mexico City area and over the North Pacific." Atmospheric Chemistry and Physics Discussions 7, no. 6 (2007): 15533–63. http://dx.doi.org/10.5194/acpd-7-15533-2007.

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Abstract. Gas-phase elemental mercury (Hg°) was measured aboard the NASA DC-8 aircraft during the Intercontinental Chemical Transport Experiment Phase B (INTEX-B) campaign in spring 2006. Flights were conducted around Mexico City and on two subsequent deployments over the North Pacific based out of Honolulu, Hawaii and Anchorage, Alaska. Data obtained from 0.15–12 km altitude showed that Hg° exhibited a relatively constant vertical profile centered around 100 ppqv. Highly concentrated pollution plumes emanating from the Mexico City urban agglomeration revealed that mixing ratios of Hg° as larg

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