Zobrazeno 1 - 10
of 90
pro vyhledávání: '"R. K. Pathak"'
Autor:
M. J. Campmier, J. Gingrich, S. Singh, N. Baig, S. Gani, A. Upadhya, P. Agrawal, M. Kushwaha, H. R. Mishra, A. Pillarisetti, S. Vakacherla, R. K. Pathak, J. S. Apte
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 4357-4374 (2023)
Lower-cost air pollution sensors can fill critical air quality data gaps in India, which experiences very high fine particulate matter (PM2.5) air pollution but has sparse regulatory air monitoring. Challenges for low-cost PM2.5 sensors in India incl
Externí odkaz:
https://doaj.org/article/d7dc707bf8d7440f83e245b8573978ab
Autor:
M. Le Breton, Å. M. Hallquist, R. K. Pathak, D. Simpson, Y. Wang, J. Johansson, J. Zheng, Y. Yang, D. Shang, H. Wang, Q. Liu, C. Chan, T. Wang, T. J. Bannan, M. Priestley, C. J. Percival, D. E. Shallcross, K. Lu, S. Guo, M. Hu, M. Hallquist
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 13013-13030 (2018)
Nitryl chloride (ClNO2) accumulation at night acts as a significant reservoir for active chlorine and impacts the following day's photochemistry when the chlorine atom is liberated at sunrise. Here, we report simultaneous measurements of N2O5 and
Externí odkaz:
https://doaj.org/article/4443e20e3a06469ba2b69fa97e9f2022
Autor:
M. Le Breton, Y. Wang, Å. M. Hallquist, R. K. Pathak, J. Zheng, Y. Yang, D. Shang, M. Glasius, T. J. Bannan, Q. Liu, C. K. Chan, C. J. Percival, W. Zhu, S. Lou, D. Topping, J. Yu, K. Lu, S. Guo, M. Hu, M. Hallquist
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 10355-10371 (2018)
A time-of-flight chemical ionization mass spectrometer (CIMS) utilizing the Filter Inlet for Gas and Aerosol (FIGAERO) was deployed at a regional site 40 km north-west of Beijing and successfully identified and measured 17 sulfur-containing orga
Externí odkaz:
https://doaj.org/article/7959d7792d2340eaad4d21acc9149309
Autor:
X. Pei, M. Hallquist, A. C. Eriksson, J. Pagels, N. M. Donahue, T. Mentel, B. Svenningsson, W. Brune, R. K. Pathak
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 9845-9860 (2018)
The morphological transformation of soot particles via condensation of low-volatility materials constitutes a dominant atmospheric process with serious implications for the optical and hygroscopic properties, as well as atmospheric lifetime of the
Externí odkaz:
https://doaj.org/article/1bba08a6ee68420888c8aaeeb33004b4
Publikováno v:
Biologia Plantarum, Vol 62, Iss 2, Pp 325-334 (2018)
Finger millet (Eleusine coracana) is one of important crops, and its grains contain an exceptionally high content of calcium. In order to investigate the molecular mechanism by which it orchestrate the accumulation of Ca2+ during grain filling, some
Externí odkaz:
https://doaj.org/article/63e663a18f1948d688c4f481dd1ffcaf
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 5467-5481 (2018)
The gas-phase nitrate radical (NO3⚫) initiated oxidation of limonene can produce organic nitrate species with varying physical properties. Low-volatility products can contribute to secondary organic aerosol (SOA) formation and organic nitrates m
Externí odkaz:
https://doaj.org/article/4527f254ce1249069c2b3dc96ac136d2
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 5, Pp 1711-1722 (2009)
Strong atmospheric photochemistry in summer can produce a significant amount of secondary aerosols, which may have a large impact on regional air quality and visibility. In the study reported herein, we analyzed sulfate, nitrate, and ammonium in PM2.
Externí odkaz:
https://doaj.org/article/b263b2287b724259ac776b074f87f6ea
Publikováno v:
Atmospheric Chemistry and Physics, Vol 7, Iss 14, Pp 3811-3821 (2007)
Existing parameterizations tend to underpredict the α-pinene aerosol mass fraction (AMF) or yield by a factor of 2–5 at low organic aerosol concentrations (−3). A wide range of smog chamber results obtained at various conditions (low/high NOx, p
Externí odkaz:
https://doaj.org/article/0fb634b600d043d8b1c2dc7827e75937
Autor:
Abhishek Singh Yadav, Abhishek Tiwari, Hanuman Prasad Pandey, Ravindra Sachan, Anil Kumar, R. K. Pathak, Himani Verma
Publikováno v:
International Journal of Environment and Climate Change. :3716-3724
Field experiments were conducted to Studies effect integrated nutrient management on yield and economics of wheat during Rabi season of 2020-21 and 2021-22 at student’s instructional farm, Chandra Shekhar Azad University of Agriculture & Technology
Autor:
Abhishek Singh Yadav, Abhishek Tiwari, Hanuman Prasad Pandey, Ravindra Sachan, Anil Kumar, R. K. Pathak, Himani Verma
Publikováno v:
International Journal of Plant & Soil Science. :1050-1057
Field experiments were conducted to studies effect of integrated nutrient management on growth parameters, yield components and yield of wheat during rabi season of 2020-21 and 2021-22 at students instructional farm, Chandra Shekhar Azad University o