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Environmental samples

Xem 1-20 trên 304 kết quả Environmental samples
  • Part 2 of ebook "Entropy theory and its application in environmental and water engineering" provides readers with contents including: parameter estimation; spatial entropy; inverse spatial entropy; entropy spectral analyses; minimum cross entropy spectral analysis; evaluation and design of sampling and measurement networks; election of variables and models;...

    pdf332p mothoiphong 28-06-2024 2 1   Download

  • This study aimed to investigate the levels of contamination of potentially toxic trace elements in the soil of Dong Nai Province, Vietnam. To achieve this, the Instrument Neutron Activation Analysis (INAA) method was employed to measure the concentrations of five potentially toxic trace elements, including manganese (Mn), arsenic (As), chromium (Cr), antimony (Sb), and zinc (Zn), across 30 soil samples collected from the region.

    pdf11p visergeyne 18-06-2024 1 0   Download

  • This study investigates the importance of firm-level green reputation on client-side financial watchdogs’ reactions characterized by audit fees and credit ratings. Using a comprehensive sample of US-listed firms over 2007-2020, we find that firms with high environmental reputation risk (ERR) are positively associated with higher audit fees, and they also tend to receive lower credit ratings.

    pdf7p viambani 18-06-2024 2 0   Download

  • In ebook "Nanoparticles in the water cycle: Properties, analysis and environmental relevance" the first section deals with basic aspects of nanoparticles and their function in air, water, soil and water treatment. The second part contains examples for the application of advanced instrumentation for quantification and characterisation of nanoparticles with special respect to aqueous samples.

    pdf243p giangdongdinh 28-05-2024 1 1   Download

  • Ebook "Silver nanoparticles in the environment" covers the environmental issues concerning silver nanoparticles (AgNPs). Following an introduction to the history, properties and applications, the environmental concerns of AgNPs is discussed. In the second chapter, the separation, characterization and quantification of AgNPs in environment samples are described in detail.

    pdf161p giangdongdinh 28-05-2024 1 1   Download

  • This paper aims to provide information about the fractions of cadmium (Cd) and its distribution in surface sediment collected from bivalves harvesting areas in Binh Thuan province (Tuy Phong, Phan Thiet, Lagi). For this purpose, the sediment samples were collected monthly along with these areas in 2015–2016. To analyze the fractions of Cd, a five-step Tessier (1979) sequential extraction process was used, including Fraction 1 (Exchangeable), Fraction 2 (Bound to carbonate), Fraction 3 (Bound to iron-manganese oxide), Fraction 4 (Bound to organic compounds), and Fraction 5 (Residual).

    pdf10p dianmotminh02 03-05-2024 5 1   Download

  • This study explores the relationship between the Stock Exchange of Thailand Sustainability Index (sSET), Multinational Corporations (MNCs), and Environmental, Social, and Governance (ESG) criteria. Our analysis is based on a sample of 136 companies.

    pdf8p viellison 06-05-2024 1 1   Download

  • This study aims at determining the mass concentrations of PM and health risks on pollution event days (episodes) in Ha Noi. Semi-daily samples (daytime and night-time) of PM2.5 and PM0.1 were collected at Hanoi University of Science and Technology, in December 2021. The daily PM2.5 concentrations were in the range of 39 - 204 µg/m3 (average of 119 µg/m3).

    pdf11p dianmotminh02 03-05-2024 7 3   Download

  • Current study examines the effect of Green Supply Chain Management (GSCM) skills on the environmental performance of manufacturing companies in Thailand. This study also evaluate the mediating role of innovation performance among the relationship of GSCM skills and environmental performance. The sample was limited to the firms that had certification of ISO 14001 EMS in Thailand. Data were collected from the companies mentioned above through a questionnaire.

    pdf13p longtimenosee10 26-04-2024 4 1   Download

  • This paper adopts an analytical approach to examine residents’ tolerance of the effects of mining in Ijero Local Government in Ekiti State, southwestern Nigeria. Quantitative responses from a systematic sampling of 506 residents are presented with an emphasis on risk perception and management measures.

    pdf12p viohoyo 25-04-2024 2 1   Download

  • This research aims to investigate the effect of socio-scientific issues (SSI) based instruction on preservice science teachers’ soft skills and environmental awareness. By applying cluster random sampling, 83 preservice science teachers (PSTs) were selected from the Department of Science Education at a university in Indonesia.

    pdf14p viohoyo 25-04-2024 3 1   Download

  • Ebook "Analytical chemistry applied to emerging pollutants" addresses the highly relevant subject of emerging pollutants, which are especially alarming since most of the available treatment technologies are unable to degrade them. It discusses the sources of these pollutants and their fate in the environment, and the main tools available for their analysis. It also describes the representative environmental matrices (air, soil and water) and appropriate analytical methods for each matrix.

    pdf128p tracanhphuonghoa1007 22-04-2024 4 2   Download

  • The purpose of this research is to analyse the impact of the development of supply chain strategy in the tourism KEK Kelayang Cape as an alternative economy after Tin Mining. The research method is quantitative descriptive design, the number of samples used 80 SME business based on tourism. Analysis of the data using the analysis Confirmatory Factor with PLS method. Research findings indicate that the development of tourism in the Island of Belitung already provide economic impact, social and environment.

    pdf17p longtimenosee09 08-04-2024 1 0   Download

  • The purpose of the paper is to evaluate the impact of environmental attitude, green satisfaction, green trust, and green perceived quality on Green Purchase Intention (GPI) with the moderation of Environmental Concern (EC) in the fast moving consumer goods. The FMCG industry of Jordan was targeted to collect data. The quantitative approach was adopted for collecting data with using purposive sampling. The PLS-SEM analysis was implemented using SmartPLS 3.2.8.

    pdf6p longtimenosee06 27-03-2024 1 1   Download

  • Ebook "Physical principles of electron microscopy: An introduction to TEM, SEM, and AEM" provides an introduction to the theory and practice of electron microscopy. The second edition has been updated to reflect the recent developments, including correction of lens aberrations in a TEM column and new material on environmental TEM and SEM. The text is linked to a new website that contains additional educational material such as sample exam questions and answers to selected problems.

    pdf211p coduathanh1122 27-03-2024 4 1   Download

  • Part 1 book "Chromatography - The most versatile method of chemical analysis" by Leonardo de Azevedo Calderon includes contents: Purification of phospholipases A2 from American snake venoms; use of chromatography in animal ecology; 2D-NanoLC-ESI-MS/MS for separation and identification of mouse brain membrane proteins; analytical methods for quantification of drug metabolites in biological samples; current trends in sample treatment techniques for environmental and food analysis,... and other contents.

    pdf239p muasambanhan09 16-03-2024 4 1   Download

  • The purpose of the research is to evidence the role of corporate environmental disclosure in mediating the relationship between supply chain management and corporate financial performance. Food and beverage companies listed in Indonesia Stock Exchange in period of 2014-2018 are the sample of the current research. Path Analysis with Partial Least Squares-Structural Equation Modeling (SEM) is used to analyze data.

    pdf7p longtimenosee04 06-03-2024 6 1   Download

  • Ebook "Calcium stable isotope geochemistry (Advances in isotope geochemistry series)" provides an overview of the fundamentals and reference values for Ca stable isotope research, as well as current analytical methodologies including detailed instructions for sample preparation and isotope analysis. As such, it introduces readers to the different fields of application, including low-temperature mineral precipitation and biomineralisation, Earth surface processes and global cycling, high-temperature processes and cosmochemistry, and lastly human studies and biomedical applications.

    pdf269p duongthandue0501 28-02-2024 1 1   Download

  • 210Po, one of the harmful natural isotopes with a long enough half-life, plays a significant role in environmental processes. 48 samples, including groundwater (dug wells, thermal water, and drill wells) and surface water (lakes, rivers, and streams) in the Da Nang - Quang Nam region of Vietnam were analyzed by an alpha spectrometer.

    pdf11p vialfrednobel 21-12-2023 5 3   Download

  • Part 1 book "Environmental microbiology - Methods and protocols" includes content: Methods for isolation and cultivation of filamentous fungi, rapid extraction of PCR-competent DNA from recalcitrant environmental samples, quantitative PCR for detection of mRNA and gDNA in environmental isolates, analysis of community dynamics in environmental samples using denaturing gradient gel electrophoresis, terminal restriction fragment length polymorphism (T-RFLP) profiling of bacterial 16S rRNA genes,... and other contents.

    pdf134p oursky10 04-12-2023 4 2   Download

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