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  1. Book ; Online: 5G and Beyond

    Bhushan, Bharat / Sharma, Sudhir Kumar / Kumar, Raghvendra / Priyadarshini, Ishaani

    (Springer Tracts in Electrical and Electronics Engineering)

    2023  

    Author's details edited by Bharat Bhushan, Sudhir Kumar Sharma, Raghvendra Kumar, Ishaani Priyadarshini
    Series title Springer Tracts in Electrical and Electronics Engineering
    Keywords Telecommunication ; Electronic circuits ; Computer engineering ; Computer networks
    Language English
    Size 1 Online-Ressource (XII, 305 p. 53 illus., 31 illus. in color)
    Edition 1st ed. 2023
    Publisher Springer Nature Singapore ; Imprint: Springer
    Publishing place Singapore
    Document type Book ; Online
    HBZ-ID HT030342327
    ISBN 978-981-99-3668-7 ; 9789819936670 ; 9789819936694 ; 9789819936700 ; 981-99-3668-3 ; 9819936675 ; 9819936691 ; 9819936705
    DOI 10.1007/978-981-99-3668-7
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online: 5G and Beyond

    Bhushan, Bharat / Sharma, Sudhir Kumar / Kumar, Raghvendra / Priyadarshini, Ishaani

    (Springer Tracts in Electrical and Electronics Engineering)

    2023  

    Series title Springer Tracts in Electrical and Electronics Engineering
    Keywords Communications engineering / telecommunications ; Circuits & components ; Computer networking & communications ; Network hardware ; 5G Mobile Communication ; B5G Networks ; 6G Networks ; Mobile Computation ; Wireless Communication ; Satellite Broadcasting ; Cellular Networks ; Spectrum ; Data Analysis ; Convergence ; Security ; Quality of Service
    Language English
    Size 1 electronic resource (305 pages)
    Publisher Springer Nature
    Publishing place Singapore
    Document type Book ; Online
    Note English
    HBZ-ID HT030610956
    ISBN 9789819936670 ; 9819936675
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Article ; Online: Health risk assessment of aerosol particles (PM

    Chaudhary, Anita / Prakash, Chandra / Sharma, Sudhir Kumar / Mor, Suman / Ravindra, Khaiwal / Krishnan, Prameela

    Environmental monitoring and assessment

    2023  Volume 195, Issue 11, Page(s) 1297

    Abstract: For the last few decades, air pollution in developing country like India is increasing, and it is a matter of huge concern due to its associated human health impacts. In this region, the burgeoning population, escalating urbanization and ... ...

    Abstract For the last few decades, air pollution in developing country like India is increasing, and it is a matter of huge concern due to its associated human health impacts. In this region, the burgeoning population, escalating urbanization and industrialization, has been cited as the major reason for such a high air pollution. The present study was carried out for health risk assessment of aerosol particles (PM
    MeSH term(s) Child ; Adult ; Humans ; Air Pollutants/analysis ; Environmental Monitoring ; Cadmium ; Lead ; Particulate Matter/analysis ; Metals, Heavy/analysis ; Risk Assessment ; Aerosols ; India
    Chemical Substances Air Pollutants ; Cadmium (00BH33GNGH) ; Lead (2P299V784P) ; Particulate Matter ; Metals, Heavy ; Aerosols
    Language English
    Publishing date 2023-10-12
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 782621-7
    ISSN 1573-2959 ; 0167-6369
    ISSN (online) 1573-2959
    ISSN 0167-6369
    DOI 10.1007/s10661-023-11826-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 5186: Show issues

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  4. Article ; Online: Chemical characteristics, morphology and source apportionment of PM

    Banoo, Rubiya / Gupta, Sarika / Gadi, Ranu / Dawar, Anit / Vijayan, Narayanasamy / Mandal, Tuhin Kumar / Sharma, Sudhir Kumar

    Environmental monitoring and assessment

    2024  Volume 196, Issue 2, Page(s) 163

    Abstract: The present study frames the physico-chemical characteristics and the source apportionment of ... ...

    Abstract The present study frames the physico-chemical characteristics and the source apportionment of PM
    MeSH term(s) Environmental Monitoring ; India ; Carbon ; Dust ; Water
    Chemical Substances Carbon (7440-44-0) ; Dust ; Water (059QF0KO0R)
    Language English
    Publishing date 2024-01-17
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 782621-7
    ISSN 1573-2959 ; 0167-6369
    ISSN (online) 1573-2959
    ISSN 0167-6369
    DOI 10.1007/s10661-023-12281-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 5186: Show issues

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  5. Article ; Online: Role of South Asian outflow on the oxidative potential of marine aerosols over the Indian Ocean.

    Panda, Subhasmita / Babu, S Suresh / Sharma, Sudhir Kumar / Mandal, Tuhin Kumar / Das, Trupti / Ramasamy, Boopathy

    The Science of the total environment

    2023  Volume 887, Page(s) 164105

    Abstract: Oxidative potential (OP) of fine marine aerosols ( ... ...

    Abstract Oxidative potential (OP) of fine marine aerosols (PM
    Language English
    Publishing date 2023-05-10
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.164105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 949: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  6. Article: Association between Acute Exposure to PM₂.₅ Chemical Species and Mortality in Megacity Delhi, India

    Joshi, Pallavi / Dey, Sagnik / Ghosh, Santu / Jain, Srishti / Sharma, Sudhir Kumar

    Environmental science & technology. 2022 Apr. 25, v. 56, no. 11

    2022  

    Abstract: The association between daily all-cause mortality and short-term fine particulate matter (PM₂.₅) exposure is well established in the literature. However, association between acute exposure to PM₂.₅ chemical species and mortality is not well known, ... ...

    Abstract The association between daily all-cause mortality and short-term fine particulate matter (PM₂.₅) exposure is well established in the literature. However, association between acute exposure to PM₂.₅ chemical species and mortality is not well known, especially in developing countries like India. Here we examined associations between mortality and acute exposure to PM₂.₅ mass concentration and their 15 chemical components using data from 2013 to 2016 in megacity Delhi using a semiparametric quasi-Poisson regression model, adjusting for mean temperature, relative humidity, and long-term time trend as the major potential confounders. Mortality estimates were further checked for effect modification by sex, age group, and season. The subspecies of NO₃–, NH₄NO₃, Cr, NH₄⁺, EC, and OC showed a higher mortality impact than the total PM₂.₅ mass. Males were at higher risk from NO₃–, SO₄²–, and their NH₄⁺ compounds along with carcinogen Cr, whereas female group was at higher risk from EC and OC. Among all age groups, the elderly above 65 years were the most vulnerable group prone to mortality effects from maximum species. The major mortality risk from all hazardous species arose from their winter exposures. Our study provides the first evidence of association between acute exposure to PM₂.₅ chemical species and mortality anywhere in India and recommends similar studies in other regions so that sectoral mitigation emitting the most toxic species can be prioritized to maximize the health benefits.
    Keywords acute exposure ; carcinogens ; chemical species ; cities ; elderly ; environmental science ; females ; mortality ; particulates ; regression analysis ; relative humidity ; risk ; technology ; temperature ; toxicity ; India
    Language English
    Dates of publication 2022-0425
    Size p. 7275-7287.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1520-5851
    DOI 10.1021/acs.est.1c06864
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Seasonal variations in carbonaceous species of PM2.5 aerosols at an urban location situated in Indo-Gangetic Plain and its relationship with transport pathways, including the potential sources

    Ravindra, Khaiwal / Singh, Tanbir / Mandal, Tuhin Kumar / Sharma, Sudhir Kumar / Mor, Suman

    Journal of environmental management. 2022 Feb. 01, v. 303

    2022  

    Abstract: The study examines the variation in organic carbon (OC) and elemental carbon (EC) in PM₂.₅ concentration at an urban location of Indo-Gangetic Plains (IGP) to understand the impact of seasonality and regional crop residue burning activities. Seasonal ... ...

    Abstract The study examines the variation in organic carbon (OC) and elemental carbon (EC) in PM₂.₅ concentration at an urban location of Indo-Gangetic Plains (IGP) to understand the impact of seasonality and regional crop residue burning activities. Seasonal cluster analysis of backward air masses and concentration-weighted trajectory (CWT) analysis was performed to identify seasonal transport pathways and potential source regions of carbonaceous aerosols. The mean PM₂.₅ level during the study period was 57 ± 41.6 μgm⁻³ (5.0–187.3 μgm⁻³), whereas OC and EC concentration ranges from 2.8 μgm⁻³ to 28.2 μgm⁻³ and 1.3 μgm⁻³ to 15.5 μgm⁻³ with a mean value of 8.4 ± 5.5 μgm⁻³ and 5.1 ± 3.3 μgm⁻³ respectively. The highest mean PM₂.₅ concentration was found during the winter season (111.3 ± 25.5 μgm⁻³), which rises 3.6 times compared to the monsoon season. OC and EC also follow a similar trend having the highest levels in winter. Total carbonaceous aerosols contribute ∼38% of PM₂.₅ composition. The positive linear trend between OC and EC identified the key sources. HYSPLIT cluster analysis of backward air mass trajectories revealed that during the post-monsoon, winters, pre-monsoon, and monsoon, 71%, 81%, 60%, and 43% of air masses originate within the 500 km radius of IGP. CWT analysis and abundance of OC in post-monsoon and winters season establish a linkage between regional solid-biomass fuel use and crop residue burning activities, including meteorology. Moreover, the low annual average OC/EC ratio (1.75) indicates the overall influence of vehicular emissions. The current dataset of carbonaceous aerosols collated with other Indian studies could be used to validate the global aerosol models on a regional scale and aid in evidence-based air pollution reduction strategies.
    Keywords aerosols ; air ; air pollution ; cluster analysis ; crop residues ; data collection ; environmental management ; meteorology ; monsoon season ; organic carbon ; winter ; Indo-Gangetic Plain
    Language English
    Dates of publication 2022-0201
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2021.114049
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 7556: Show issues

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  8. Article ; Online: Frequency distribution of pollutant concentrations over Indian megacities impacted by the COVID-19 lockdown

    Mondal, Arnab / Sharma, Sudhir Kumar / Mandal, Tuhin Kumar / Girach, Imran / Ojha, Narendra

    Environ Sci Pollut Res. 2022 Dec., v. 29, no. 57 p.85676-85687

    2022  

    Abstract: The megacities experience poor air quality frequently due to stronger anthropogenic emissions. India had one of the longest lockdowns in 2020 to curb the spread of COVID-19, leading to reductions in the emissions from anthropogenic activities. In this ... ...

    Abstract The megacities experience poor air quality frequently due to stronger anthropogenic emissions. India had one of the longest lockdowns in 2020 to curb the spread of COVID-19, leading to reductions in the emissions from anthropogenic activities. In this article, the frequency distributions of different pollutants have been analysed over two densely populated megacities: Delhi (28.70° N; 77.10° E) and Kolkata (22.57° N; 88.36° E). In Delhi, the percentage of days with PM₂.₅ levels exceeding the National Ambient Air Quality Standards (NAAQS) between 25 March and 17 June dropped from 98% in 2019 to 61% in 2020. The lockdown phase 1 brought down the PM₁₀ (particulate matter having an aerodynamic diameter ≤ 10 μm) levels below the daily NAAQS limit over Delhi and Kolkata. However, PM₁₀ exceeded the limit of 100 μgm⁻³ during phases 2–5 of lockdown over Delhi due to lower temperature, weaker winds, increased relative humidity and commencement of limited traffic movement. The PM₂.₅ levels exhibit a regressive trend in the highest range from the year 2019 to 2020 in Delhi. The daily mean value for PM₂.₅ concentrations dropped from 85–90 μgm⁻³ to 40–45 μgm⁻³ bin, whereas the PM₁₀ levels witnessed a reduction from 160–180 μgm⁻³ to 100–120 μgm⁻³ bin due to the lockdown. Kolkata also experienced a shift in the peak of PM₁₀ distribution from 80–100 μgm⁻³ in 2019 to 20–40 μgm⁻³ during the lockdown. The PM₂.₅ levels in peak frequency distribution were recorded in the 35–40 μgm⁻³ bin in 2019 which dropped to 15–20 μgm⁻³ in 2020. In line with particulate matter, other primary gaseous pollutants (NOₓ, CO, SO₂, NH₃) also showed decline. However, changes in O₃ showed mixed trends with enhancements in some of the phases and reductions in other phases. In contrast to daily mean O₃, 8-h maximum O₃ showed a reduction over Delhi during lockdown phases except for phase 3. Interestingly, the time of daily maximum was observed to be delayed by ~ 2 h over Delhi (from 1300 to 1500 h) and ~ 1 h over Kolkata (from 1300 to 1400 h) almost coinciding with the time of maximum temperature, highlighting the role of meteorology versus precursors. Emission reductions weakened the chemical sink of O₃ leading to enhancement (120%; 11 ppbv) in night-time O₃ over Delhi during phases 1–3.
    Keywords COVID-19 infection ; aerodynamics ; air quality ; decline ; frequency distribution ; meteorology ; particulates ; pollutants ; relative humidity ; temperature ; traffic ; India
    Language English
    Dates of publication 2022-12
    Size p. 85676-85687.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-16874-z
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 5915: Show issues

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  9. Article: Assessment of diminishing discharge of springs in Central Himalayan region, India

    Vijhani, Ayushi / Sinha, Vinay Shankar Prasad / Vishwakarma, Chandrashekhar Azad / Singh, Prashant / Sharma, Sudhir Kumar

    Hydrological processes. 2022 May, v. 36, no. 5

    2022  

    Abstract: Uttarakhand is witnessing a drastic decrease in spring discharge which leads to scarcity of drinking water for Himalayan inhabitants. This study uses a novel approach to assess the surface‐subsurface interaction of water, pivotal for estimating the ... ...

    Abstract Uttarakhand is witnessing a drastic decrease in spring discharge which leads to scarcity of drinking water for Himalayan inhabitants. This study uses a novel approach to assess the surface‐subsurface interaction of water, pivotal for estimating the status of spring discharge. Hydrological modelling has been used to quantify the diminishing discharge of spring and their associated factors, including changes in land practises and precipitation patterns. The coupling of the soil water assessment tool (SWAT) and MIKE hydro NAM model was proposed in the study to assess the decreasing discharge for an ungauged watershed. The model performance evaluated between the SWAT and the MIKE hydro NAM model indicated a very good index of agreement (d = 0.81). Field‐based spring discharge investigations were conducted in almost all watersheds in the study area. The MIKE hydro NAM model showed a good index of agreement (d = 0.79) with the observed spring discharge. Further, the geographically weighted regression (GWR) technique was applied over 17 driving factors based on hydrological parameters including topography, structural geology, land use/land cover and future annual precipitation (till 2030) under the RCP 4.5 scenario to understand the status of diminishing discharge of springs. The accuracy between the observed spring discharge and the GWR indicated a good index of agreement (d = 0.86). The results indicate that annual spring discharges will be significantly reduced up to 50% from 1975 to near future (2030), posing a threat to the drinking water supply. The proposed approach is replicable and scalable for ungauged river systems of the Himalayas. The study demonstrates the methods such as trend analysis of precipitation behaviour, land use change dynamics using remote sensing techniques, structural geological investigation through field measurements and hydrodynamic modelling are important for understanding surface‐subsurface interaction. The findings of the study help to identify the critical recharge zones for implementing the spring revival and rejuvenation programmes.
    Keywords atmospheric precipitation ; hydrodynamics ; land cover ; land use change ; model validation ; rivers ; soil water ; spring ; springs (water) ; topography ; water supply ; watersheds ; Himalayan region ; India
    Language English
    Dates of publication 2022-05
    Publishing place John Wiley & Sons, Inc.
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1479953-4
    ISSN 1099-1085 ; 0885-6087
    ISSN (online) 1099-1085
    ISSN 0885-6087
    DOI 10.1002/hyp.14582
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  10. Article ; Online: Synthesis of Self-Assembled Single Atomic Layer Gold Crystals-Goldene.

    Sharma, Sudhir Kumar / Pasricha, Renu / Weston, James / Blanton, Thomas / Jagannathan, Ramesh

    ACS applied materials & interfaces

    2022  Volume 14, Issue 49, Page(s) 54992–55003

    Abstract: We report, for the first time, a technique to synthesize free-standing, one-atom thick 2D gold crystals (namely, goldene) and self-assembled 2D periodic arrays of goldene. High-resolution transmission electron microscopy (HRTEM) imaging of goldene ... ...

    Abstract We report, for the first time, a technique to synthesize free-standing, one-atom thick 2D gold crystals (namely, goldene) and self-assembled 2D periodic arrays of goldene. High-resolution transmission electron microscopy (HRTEM) imaging of goldene revealed herringbone and honeycomb lattices, which are primarily gold surface features due to its reconstruction. Imaging of these surface-only features by a nonsurface characterization technique such as HRTEM is an unequivocal proof of the absence of three-dimensionality in goldene. Atomic force microscopy confirmed 1-2 Å thickness of goldene. High-resolution X-ray photoelectron spectroscopy (HR-XPS), selective area electron diffraction, and energy-dispersive X-ray spectroscopy confirmed the chemical identity of goldene. We discovered the phenomenon of electric field-induced self-assembly of goldene supracrystals with a herringbone structure and developed an electric field printing (e-print) technique for goldene arrays. Goldene showed a semiconductor response with a knee voltage of ∼3.2 V, and
    Language English
    Publishing date 2022-12-01
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.2c19743
    Database MEDical Literature Analysis and Retrieval System OnLINE

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